This standard specifies the names and definitions of mechanical structure terms for relays and their devices. This standard is used by relays and devices professionals when citing relevant mechanical structure terms in standard formulation and revision, technical document compilation, and technical drawing drawing. It can also be used as a reference when compiling and translating professional manuals, teaching materials, and books. JB/T 6486-1992 Mechanical structure terms for relays and their devices JB/T6486-1992 Standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
Terms of Mechanical Structure of Relays and Their Devices
1 Subject Content and Scope of Application
This standard specifies the names and definitions of mechanical structure terms of relays and their devices. JB/T6486-92
This standard is used by relays and devices professionals when citing relevant mechanical structure terms in the formulation and revision of standards, the preparation of technical documents, and the drawing of technical drawings. It can also be used as a reference when compiling and translating professional manuals, teaching materials, and books. 2 General Terms
2.1 Structure structure; construction The sum of the ways in which the various components such as materials, components, and parts used in the product are interconnected and interact with each other. 2.2 Mechanical structure mechanical structure The sum of the mechanical parts that provide installation, support, connection, transmission, locking, protection, decoration, etc. for the product, referred to as structure. 2.3 Equipment structure equipment practice includes the mechanical structure of the electronic and electromechanical system housing and installation, which provides a guarantee for the compatibility between mechanical parts, electrical connections, and electrical and electronic devices.
2.4 Component strnctural member
The basic unit of mechanical structure.
2.5 Subassembly
A component composed of several parts in a detachable or non-detachable form, or a component assembled from equal parts and subassemblies. 2.6 Part
A single component made without assembly process. 2.7 Unit of structure
A mechanical structure with independent use function. 2.8 Structure model structure model
A way of classifying structures that express the basic characteristics of the structure. 2.9 Structure model structure type
A symbol that uses words, numbers and their combination to represent a specific type of structure. 2.10 Degree of protection A method used to classify the ability of a structure to prevent foreign matter, dust, water, gas, etc. from invading its interior. 2.11 Sealing sealing
The ability to prevent dust, water, gas and other pollutants from entering. 2.12 Profile
Material supplied in a certain cross-sectional shape.
2.13 Plate
Material supplied in the form of a plate.
2.14 Interchangeability; exchangeability The performance of the same parts, components, components or structural units to meet the original functional requirements after replacement. Approved by the Ministry of Machinery and Electronics Industry on August 6, 1992 and implemented on January 1, 1993
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2.15 Dimensional compatibility A structural unit can be used for a similar structural unit in another structural system without mismatching and producing incoordination. 2.16 Dimensional interface The connection between two different structural units or structural systems is called docking. 2.17 Dimensional additivity Several smaller products with the same total area or space can replace a large product. 2.18 Dimensional divisibility A large product can be replaced by several smaller products with the same total area or space. 2.19 Insertion and withdrawal force The general term for the force of inserting and withdrawing two combinations in the axial direction. 2.20 Pull--outforce; withdrawal force The force required to pull two combinations out in the axial direction. 2.21 Insertion force
The force required to insert and engage two combinations in the axial direction. 2.22 Interlocking
a. The connection and locking of two or more structural units or components. b. The mutual connection and locking measures set up to ensure the action or operation in the specified sequence) or to prevent malfunction. 2.23 Shield
Measures to prevent radiated electromagnetic fields, electrostatic discharge and high-frequency electrical interference. 2.24 Earthing
The connection between the circuit or conductive parts of the equipment and the earth. 2.25 Heat dissipated
The method of discharging or dissipating the heat in the structural unit. 2.26 Leadlock
A locking method that uses metal wire or non-metal wire and lead to seal the adjusted machine to prevent unauthorized personnel from opening it. 2.27 Dustpreventionbzxz.net
The property of preventing dust from entering.
2.28 Group technology
Classify and group various products, components and parts according to certain similarity criteria, and organize production based on these groups, so as to achieve the rationalization of product design, manufacturing and management of multi-variety, small and medium-sized batch production. 2.29 Partscoding
Use numbers, letters or symbols to identify various elements and features on the part drawing as well as information on functions and management. 3 Structural elements
3.1 Cutout
A hole or a group of holes processed on the screen for component installation and other needs. 3.2 Threadhole
A hole with internal threads on the workpiece.
3.3 Plated-through-hole; metallized hole A hole with a conductor function processed by a special process on a printed circuit board. 3.4 Flanging hole
A side flange formed by turning the material along the circumference of the inner hole. 3.5 Step-by-step holes; row of holes 50
A group of holes arranged according to a certain modulus size rule. 3.6 Technology hole (slot) Technology hole (slot) JB/T6486—92
A hole (slot) that is only required for processing and not for structural design. 3.7 Convex
A block-shaped protrusion on the surface of a workpiece.
3.8 Tendon
A strip-shaped protrusion on the surface of a workpiece.
3.9 Flange
A radial protrusion of a simple workpiece.
3.10 Fold; Pleat
The wrinkled part on the workpiece surface.
3.11 Slot
A strip-shaped unpenetrated hole on a workpiece.
3.12 Flexure
The bent part of a workpiece.
3.13 Chamfer
The angle of a workpiece with a certain slope.
3.14 Fillet
The angle of a workpiece with an arc shape.
3.15 Knurl
The pattern processed on the workpiece surface by pressure processing method. 3.16 Pit
The scattered and evenly distributed pits processed on the workpiece surface. 3.17 Flanging
The short side edge of the plate edge or the mouth of the pipe. 3.18 Collision
The bulge formed by the material flowing into the corresponding pit of the punch by squeezing the punch into the side of the workpiece. 3.19 Breach
A gap in the shape of a scattered contour processed on the workpiece by the stamping process, the width of which is greater than the depth. 3.20 Slot
A gap in the shape of a scattered contour processed on the workpiece by the stamping process, the depth of which is greater than the width. 3.21 Necking
The part of the end of a tubular or hollow workpiece with reduced radial dimensions. 3.22 Flaring
The part of the end of a tubular or hollow workpiece with expanded radial dimensions. 3.23 Tongue
The part of the workpiece where the material is partially separated and is not on the plane before separation. 3.24 Terminal area
A special part of a printed circuit board designed and manufactured to connect with the lead wires of components, such as a round, oblong, square, etc., in order to ensure welding reliability.
4 Modulus and size
4.1 Modulus
module
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The basic size used to determine the law of structural size change. The series of sizes obtained by multiplying this with the preferred multiplier can realize the addition and division of sizes.
basemodule
4.2 Basic module
The smallest module in the modular series, its value is equal to the basic grid pitch. 4.3 Multiplier factor
Multiplied by the module, to obtain a positive integer of the modular size, this positive integer is generally optimized. 4.4 Modular dimension modulardimension
The size obtained by multiplying the module by a certain multiplier. 4.5 Modular grid modulargrid
A two-dimensional or three-dimensional grid that conforms to the modular series. 4.6 Basic grid pitch basepitch
The minimum distance between adjacent grid lines in the structural grid size. 4.7 Multiple pitch multiple pitch
Integer multiple of the basic pitch.
4.8 Mounting pitch mounting pitch
The pitch used to arrange parts, components, components or equipment in a specified space. 4.9 Overall dimensions; outline size The height, width and depth of the main part of the equipment structure. Note: The main part does not include the parts protruding outside the main body of the equipment such as the lifting ring, door lock, handle, convex door, etc. 4.10 Module modular
The component or basic structural unit of a cube or a rectangular parallelepiped constructed according to the modular dimensions. 4.11 Opening dimension out-outdimension The size of the hole on the panel to meet the installation requirements. 4.12 Installation dimension installingdimension; mountingsize The positioning dimension of the equipment or component fixed on the panel, rack or foundation with the help of a connector. 4.13 Co-odination dimension Co-odination dimension The reference dimension used to coordinate the mechanical docking relationship. This dimension is not a manufacturing dimension with tolerance. 4.14 Fitdimension
Dimensions with the same basic dimensions and in an assembly relationship. 5 Orientation
5.1 Width
Dimensions occupied by the equipment in the three-dimensional coordinate X-axis (left and right) direction. 5.2 Depth
Dimensions occupied by the equipment in the three-dimensional coordinate Y-axis (front and back) direction. 5.3 Height
Dimensions occupied by the equipment in the three-dimensional coordinate B-axis (up and down) direction. 5.4 Front
Main operating surface or monitoring surface of the equipment facing the operator, generally equipped with operating and monitoring components. 5.5 Back; rear
Surface of the equipment opposite to the front.
5.6 Left
Surface of the equipment on the left side of the operator.
5.7 Right
Surface of the equipment on the right side of the operator.
5.8Top surfacetop
The surface on the top of the equipment.
5.9Bottom
The surface at the bottom of the equipment.
5.10Monitoring surfacemonitoringsurface
The surface on which the monitoring and measuring components are installed in the equipment. JB/T6486—92
5.11Operating surfaceoperstingsurface
The surface on which the operating and control components are installed in the equipment. 5.12Writing surfacewritingsurface
The surface on which the operator writes in the equipment. 5.13Horizontal surfacelevel surface
The surface on which the equipment is parallel to the sea level.
5.14Normal surfacenormal surface
The surface on which the equipment is perpendicular to the horizontal surface.
5.15Bevel surface
The surface on which the equipment is inclined at a certain angle to the horizontal or vertical surface. 5.16 Datum
The points, lines and surfaces used to determine the geometrical relationships between geometrical elements on a structure. 6
Structural type
6.1 Fixed-type structure A structure that is fixedly installed in a specific position (such as on the ground or on a wall) and used in that position. 6.2 Mobile-type structure A structure that can be easily moved from one use position to another. Portable-type structure 6.3
A structure that can be easily carried.
6.4 Open-type structure A frame-type structure that supports electrical equipment. After the electrical equipment is installed, its live parts are easily accessible in all directions. 6.5 Dead-front (panel) structure An open-front structure that provides at least IP2X protection level on the front, but the electrical parts are easily accessible in other directions. 6.6 Protective structure protective structure A structure that is enclosed on the front, back, left and right sides (except for the possible installation panel) and provides at least IP2X protection. 6.7 Enclosed structure enclosed structure A structure that can prevent the entry of solid foreign objects and has a protection level equivalent to IP2X to IP5X. 6.8 Sealed structure sealed structure A structure with a watertight or airtight enclosure and a protection level equivalent to IP67 and above. 6.9 Flush type structure A structure in which the main part is located behind the installation surface after installation. 6.10 Protruding (projecting) type structure A structure in which the main part is located in front of the installation surface after installation. 6.11 Plug-in structure53
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A structure in which the mechanical and electrical connections can be separated manually or mechanically without disassembly after the structural units are assembled. 6.12 Non-plug-in structure A structure in which the mechanical and electrical connections cannot be separated without disassembly after the structural units are assembled. 6.13 Assembly structure A structure in which the parts or structural units can be easily assembled without special tools. 6.14 Unsplit structure A structure in which the parts or structural units cannot be disassembled once they are assembled. 6.15 Semi-assembly structure A structure in which the parts or structural units can be partially disassembled after they are assembled. 6.16 Composite mounted structure, split mounted structure A structure in which electrical components or structural units can be assembled side by side. 6.17 Mosaic (cordwood) system A structural system in which various components and structural units made according to the size of chess pieces can be easily selected, added or replaced. 6.18 Plate structure Plate structure
A structure in which the main parts are assembled from processed plates. 6.19 Profile structure: a structure whose main parts are assembled after processing the profile. 6.20 Structure of terminal in front of plate: a protruding installation structure in front of the installation surface for external electrical wiring. 6.21 Structure for indoor installation: a structure installed indoors.
6.22 Structure for outdoor installation: a structure installed in outdoor open-air places. 7 Overall structure
7.1 Rack
A metal frame without doors and skins.
7.2 Panel; board
A rack with a fixed panel in front.
7.3 Panel set
A group of panels installed side by side by mechanical means, usually with the same height and depth. 7.4 Panel with door
A panel with a door in the front or (and) the back.
7.5 Panel with desk
A screen with a horizontal or (and) inclined panel. 7.6 Sideboard (panel)
A component used to close both sides of a panel.
Cabinet; cubicle
A protective structure covered with doors and panels. 7.8 Cabinet set.
A group of cabinets mechanically installed side by side, usually of equal height and depth. 7.9 Box
Generally refers to a protective structure placed on a table, workbench or mounted on a wall. 54
7.10 Subrack
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A structural unit for installing multiple plug-ins and connectors and can be installed in structures such as panels and cabinets. 7.11 Plug-in unit
A structure inserted into a plug-in box and guided and supported by a guide rail. Its type can be different types such as a rack type or a box type with a printed circuit board and a connector plug.
7.12 Single-tier subrack A subrack that can be inserted with plug-ins of the same specified height in the height direction. 7.13 Two-tiers subrack
A subrack that can be inserted with two plug-ins of the same specified height in the height direction. 7.14 Multi-tiers subrack A subrack that can be inserted with three or more plug-ins of the same specified height in the height direction. 7.15 Combined subrack
A subrack that has both single-tier and double-tier (or multi-tier) plug-in functions. 7.16 Drawer
A centimeter-shaped structural unit that can be pulled out or pushed in. 7.17 Console:desk
A structure installed on a base or floor that has both horizontal and vertical (or inclined) mounting surfaces or has horizontal, vertical, and inclined mounting surfaces at the same time.
7.18 Housing case; housing
A structural unit for installing electrical and magnetic circuits and providing protective cover and wiring. 7.19 Flush type case
After installation, the main part of the housing is located behind the installation surface. 7.20 Protruding case; projecting case After installation, the main part of the housing is located in front of the installation surface. 8 Components
8.1 Beam: A horizontal support member in a rooftree structure.
8.2 Column
A vertical support member in a structure.
8.3 Foundation foundation; base
A support member at the bottom of a structure.
8.4 Enclosure; envelope
The entire protective covering on the outside of a structure. 8.5 Front plate
A plate-like member covering the front of a structure, usually equipped with components. 8.6 Blanking plate
A plate-like component covering the front of the structure, without components installed, and only serving as a covering. 8.7 Side plate
A plate-like component covering the left and right sides of the structure. 8.8 Top plate
A plate-like component covering the top surface of the structure.
8.9 Bottom plate
A plate-like component covering the bottom surface of the structure.
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8.10 Division plate; separation plate A plate-like component that serves to isolate the internal space. 8.11 Reinforcing plate
A plate-like component used to increase strength or rigidity. 8.12 Cover plate
An opaque plate-like component used to cover a certain surface or a certain part of the structure. 8.13 Front cover
A component covering the front of the structure.
8.14 Rear (back) cover
A component covering the back of a structure.
8.15 Turning plate
A plate-like component installed horizontally or obliquely and can be turned to a certain angle. 8.16 Facing plate
A strip-shaped or plate-like component used to decorate the upper part of a structure. 8.17 Supporting plate
A plate-like component that plays a supporting role in a structure. 8.18 Mounting plate
A plate-like component used to mount components and devices but not exposed on the surface of the structure. 8.19 Clamping plate
A plate-like component that plays a clamping and fastening role. 8.20 Connecting plate
A plate-like component that plays a mechanical connection role.
8.21 Terminal plate
A plate-like component that plays an electrical connection role.
8.22 Printed circuit board (PCB) A plate-like component with a circuit made on an insulating board by a certain plate-making method. 8.23 ​​Pedal; footplate
A component used to place the operator's feet. 8.24 Angle; bentplate
A component formed by bending a plate.
8.25 Padplate
A plate-like component used for installation and adjustment.
8.26 Barrier
A component used to protect against direct contact from any direction, with a protection level of IP2X and above, or for arc protection. 8.27 Door
A vertically mounted component with hinges or slides. 8.28 Caster
A component consisting of wheels and brackets installed at the bottom of the equipment to facilitate free movement of the equipment. 8.29 Frame; framework
A skeleton-type component.
8.30 Swing frame; swivel frame A frame-type component that is hinged inside the cabinet and can be rotated to access its back. 56
8.31 Face boot
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A partially or fully transparent component installed in front of the structure for protecting and observing its interior. 8.32 Boot
A transparent or translucent shell.
8.33 Locking mechanism A mechanism that can position, fix and lock the movable component. 8.34 Insertion and drawout mechanism A mechanism that can easily insert or pull out the removable part. 8.35 Returning mechanism, reset mechanism A mechanism that can reset the movable component. 8.36 Insertion and drawout tool An auxiliary tool used to easily insert or pull out the removable part. 8.37 Nameplate A plate-like component used to mark the product model, name, manufacturer's name, trademark, date of manufacture, etc. 8.38 Labelingplate A component used to mark product functional parameters or schematics. 8.39 Labelframe A component used to fix or place a label. 8.40 Guiderail A component that can guide, position and support. 8.41 Support Bracket A support with a complex shape made by bending, die casting or injection molding. 8.42 Pillar A support installed perpendicular to the reference plane, which may be vertical or horizontal in the structure. Mountingbar 8.43 Bar A long strip of mounting parts.
8.44Bail
A semi-enclosed or enclosed clamping piece. 8.45Connecting rod
connectionbar;
bar-linkage
A rod-shaped member that serves as a connection.
8.46Pull-rod, brace
A rod-shaped member that bears tension.
8.47Stand-up bar
A rod-shaped member that bears pressure.
8.48 Jacket; sleeve
A simple component with protective function. 8.49 Bushing
A component installed between two components for buffering, isolation or other functions; 8.50 Insulating bushing
A sleeve-shaped component used to improve the electrical insulation strength. 8.51 Screw sleeve
A sleeve-shaped component with internal or external threads. 8.52 Shaft
A cylindrical component that is contained after installation. 8.53 Pulled handle
A component for pulling in the horizontal direction.
8.54 Handle
A component used for pulling when opening and closing a door. 8.55 Wheel handle
A round component for rotating or lifting. 8.56 Hinge
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A connecting piece that enables a component to rotate and can be selected and matched with another component. 8.57 Guide bushing
A sleeve-shaped component that plays a guiding and positioning role. 8.58 Guide pin
A cylindrical component that plays a guiding and positioning role. 8.59 Lock
A kind of velvet sealer that fixes the movable component in position and requires a special tool (such as a key) to open and close. 8.60 Key
A special tool used in conjunction with a lock to open the lock. Locking piece
A plate-shaped component that is locked on the lock. 8.62 Locking bolt
A component other than a plate-shaped component that is locked on the lock. 8.63 Pin; bolt
A component used for positioning or limiting.
8.64 Positioner
A component used to determine the position of other components. 8.65 Brake
A component used to limit the movement of movable components. 8.66 Damper
A component used to reduce the impact of moving parts. 8.67 Mechanical interlock A component used to interconnect and lock two or more components. 8.68 Lifting eye
A component used for lifting.
8.69 Leg
A component that supports the base so that it does not directly contact the placement surface. 8.70 Ventilation window
ventilationlouver
A component installed on the structural unit shell to facilitate air flow and dissipate internal heat. 8.71 Shielding
A component used to isolate or reduce electromagnetic fields, electrostatic discharge and high-frequency electrical interference. 8.72 Reducer
A component used to reduce the impact of movement.
8.73 Radiator
Radiator
A component used to increase the heat dissipation area of ​​the heating element and enhance the heat dissipation effect. 58
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8.74 Sealing
A component used to prevent water, gas or dust from entering the interior of the structural unit. 8.75 Protection ring
A component installed on the board for the wire to pass through, protecting the wire from being scratched and having a certain degree of sealing effect. 8.76 Base bolt; anchor is buried in the foundation of the equipment structure and used to fix the equipment. 8.77 Inlay
A metal part buried in a plastic part.
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