CN219892113U

CN219892113U - Relay shell and relay

Info

Publication number: CN219892113U
Application number: CN202321209344.4U
Authority: CN
Inventors: 晋娜; 林德松; 唐成江; 李培
Original assignee: Chengdu Huomusi Electric Co ltd
Current assignee: Chengdu Huomusi Electric Co ltd
Priority date: 2023-05-18
Filing date: 2023-05-18
Publication date: 2023-10-24
Anticipated expiration: 2033-05-18

Abstract

The utility model relates to the technical field of relays, and provides a relay shell and a relay, wherein the relay shell comprises a base and a housing arranged on the base, and plug-in units are arranged on the front side and the rear side of the housing; the plug-in unit comprises a plug-in groove and a plug-in component, the plug-in groove is arranged on the top surface of the base, and the plug-in component is arranged on the outer wall of the housing and can be inserted into the plug-in groove; the bottom of the plug connector is provided with two plug connector blocks capable of moving along the horizontal direction, each plug connector block comprises a plug connector part extending along the horizontal direction, and the plug connector parts of the two plug connector blocks extend towards opposite directions; limiting grooves corresponding to the plugging parts one by one are formed in the inner walls of the plugging grooves. According to the utility model, the plugging units are additionally arranged on the front side and the rear side of the housing to connect the housing with the base, so that the housing can be disassembled and assembled without using additional auxiliary tools on the basis of realizing reliable connection of the housing and the base, and the whole process is simple and convenient, and is beneficial to simplifying the disassembly and assembly process of the housing.

Description

Relay shell and relay

Technical Field

The utility model relates to the technical field of relays, in particular to a relay shell and a relay.

Background

A relay is an electronically controlled device that is used in an automatic control circuit, and is essentially an "automatic switch" that can control a larger current or voltage with a smaller current or voltage. In general, relays can be classified into automatic relays and non-automatic relays according to different control modes, wherein the automatic relays are represented by electromagnetic relays, and the relays rely on a control electromagnetic principle to switch internal contacts between opening and closing, thereby realizing a switching function.

The existing electromagnetic relay is generally composed of a relay base for connection with an external load through a wire, and a coil module for generating a magnetic force in an energized state to open or close contacts inside thereof.

Still further, the coil module is generally composed of a base, a coil assembly and a cover, and generally, a housing structure composed of the cover and the base is collectively referred to as a relay housing, the coil assembly for generating a magnetic force in an energized state to open or close the internal contacts is generally disposed on the base, and pins of the coil assembly penetrate through the base so as to facilitate subsequent insertion of the pins of the coil assembly into corresponding sockets on the relay base, and the cover is covered on the base so as to protect the coil assembly disposed on the base by the cover.

The cover shell and the base in the relay shell of the conventional electromagnetic relay are mostly connected by adopting screws as fasteners in assembly, and the connection mode is often unfavorable for quick assembly and disassembly of the cover shell when needed.

Disclosure of Invention

The utility model aims to provide a relay shell and a relay, which at least solve the technical problem that the cover shell in the relay shell of the traditional electromagnetic relay is not beneficial to quick assembly and disassembly when the cover shell and a base are connected by adopting a screw as a fastener.

The aim of the utility model is achieved by the following technical scheme:

in one aspect, the utility model provides a relay shell, which comprises a base and a housing arranged on the base, wherein plug-in units are arranged on the front side and the rear side of the housing;

the plug-in unit comprises a plug-in groove and a plug-in piece, the plug-in groove is arranged on the top surface of the base, and the plug-in piece is arranged on the outer wall of the housing and can be inserted into the plug-in groove;

the bottom of the plug connector is provided with two plug connectors capable of moving along the horizontal direction, each plug connector comprises a plug part extending along the horizontal direction, and the plug parts of the two plug connectors extend towards opposite directions; limiting grooves which are in one-to-one correspondence with the plugging parts are formed in the inner walls of the plugging grooves;

after the plug connector is inserted into the plug groove, the plug parts of the two plug blocks can be inserted into the corresponding limit grooves.

In some possible embodiments, the plugging unit further comprises driving members in one-to-one correspondence with the plugging blocks; the driving piece is used for driving the inserting part of the inserting block to be inserted into the corresponding limiting groove after the inserting piece is inserted into the inserting groove.

In some possible embodiments, the plug connector is internally provided with movable cavities corresponding to the plug connector one by one, the plug connector further comprises a connecting part, one end of the connecting part is connected with the plug connector, and the other end of the connecting part extends into the movable cavities;

the driving piece comprises a pressing rod and a spring, one end of the pressing rod is connected with one side of the connecting part, the other end of the pressing rod horizontally extends to the outside of the plug connector, and the pressing rod is connected with the plug connector in a sliding manner;

the spring is horizontally arranged in the movable cavity, one end of the spring is connected with one side, away from the compression bar, of the connecting portion, and the other end of the spring is connected with the inner wall, away from the compression bar, of the movable cavity.

In some possible embodiments, the bottom of the movable cavity is provided with an avoidance port, the connecting portion passes through the avoidance port and then extends into the movable cavity, and the connecting portion is slidably connected with the avoidance port.

In some possible embodiments, the driving member further includes a ram, and an end of the compression bar extending to the outside of the plug member is connected to the ram.

In some possible embodiments, the outer wall of the housing is provided with a plurality of heat dissipation grooves, and the plurality of heat dissipation grooves are sequentially arranged along the height direction of the housing.

In some possible embodiments, the plurality of heat sink slots are each closed after extending circumferentially of the casing.

In some possible embodiments, the top surface of the base is provided with a sealing groove, the sealing groove is closed after extending along the circumferential direction of the base, and a sealing ring is arranged in the sealing groove;

the bottom of the housing is provided with a sealing part matched with the sealing groove.

In another aspect, the utility model provides a relay comprising a coil module comprising a coil assembly and a relay housing as described above;

the coil component is arranged on the top surface of the base and is positioned inside the housing.

The technical scheme of the embodiment of the utility model has at least the following advantages and beneficial effects:

according to the relay shell, the plug-in units are additionally arranged on the front side and the rear side of the shell to connect the shell with the base, so that the shell can be disassembled and assembled without additional auxiliary tools on the basis of realizing reliable connection of the shell and the base, the whole process is simple and convenient, the disassembly and assembly process of the shell is simplified, and the disassembly and assembly efficiency of the shell is improved.

Drawings

Fig. 1 is a schematic structural diagram of a coil module according to the present utility model;

FIG. 2 is a schematic view of a partial exploded construction of the coil module shown in FIG. 1;

FIG. 3 is an enlarged view of FIG. 2 at A;

FIG. 4 is a schematic view of the internal structure of the plug connector according to the present utility model;

FIG. 5 is a schematic view of a housing provided by the present utility model;

FIG. 6 is a partial cross-sectional view of the plug inserted into the socket and the plug portion of the plug block not inserted into the limit slot;

fig. 7 is a partial structural cross-sectional view of the plug inserted into the plug slot and the plug portion of the plug inserted into the limit slot.

Icon: 100-coil module, 10-base, 10 a-seal groove, 10 b-seal ring, 20-housing, 20 a-heat dissipation groove, 20 b-seal part, 30-plug unit, 31-plug groove, 311-limit groove, 32-plug connector, 32 a-movable cavity, 32 b-dodge port, 33-plug block, 331-plug part, 332-connecting part, 34-driving part, 341-compression bar, 342-spring, 343-pressure head, 40-coil assembly.

Detailed Description

Referring to fig. 1 to 7, the present embodiment provides a relay, and in combination with what is shown in fig. 1 and 2, the relay includes a coil module 100, and further, the coil module 100 includes a coil assembly 40 and a relay housing, wherein the relay housing includes a base 10 and a housing 20 disposed on the base 10, and the coil assembly 40 is disposed on a top surface of the base 10 and is located inside the housing 20, so as to protect the coil assembly 40 through the housing 20.

In order to at least overcome the technical problem that the cover 20 and the base 10 in the relay housing of the existing electromagnetic relay are inconvenient to quickly assemble and disassemble the cover 20 when the screws are used as fasteners, the embodiment also provides a relay housing, which aims to simplify the disassembling and assembling process of the cover 20 by improving the connection mode between the base 10 and the cover 20, and is beneficial to quickly disassembling and assembling the cover 20 when needed (for example, when the related electrical elements inside the cover 20 need to be overhauled).

In this embodiment, as shown in fig. 1 or fig. 2, the housing 20 has a substantially rectangular structure, and at this time, the plugging units 30 are disposed on both front and rear sides of the housing 20, so that the housing 20 and the base 10 can be quickly connected by two plugging units 30 disposed on both front and rear sides of the housing 20, however, in actual implementation, the plugging units 30 may be disposed on both left and right sides of the housing 20 as required, which is not limited herein.

In order to achieve the quick connection between the housing 20 and the base 10, the plug unit 30 of the present embodiment provided at both front and rear sides of the housing 20 includes a plug groove 31 and a plug member 32.

As shown in fig. 2, the plugging slot 31 is disposed on the top surface of the base 10, and the plugging element 32 is disposed on the outer wall of the housing 20 and is adapted to the plugging slot 31 disposed on the top surface of the base 10, so that when the housing 20 is carried on the top surface of the base 10, the plugging element 32 disposed on the outer wall of the housing 20 can be inserted into the corresponding plugging slot 31, and preferably, when the plugging element 32 is inserted into the corresponding plugging slot 31, the plugging element 32 and the plugging slot 31 are in interference fit, so as to further improve the stability of the housing 20 after being mounted and fixed.

Meanwhile, in connection with the content shown in fig. 4, two plugging blocks 33 capable of moving along the horizontal direction are disposed at the bottom of the plugging element 32, that is, the two plugging blocks 33 can move along the horizontal direction to approach or separate from each other, at this time, the plugging blocks 33 include plugging portions 331 extending along the horizontal direction, the plugging portions 331 of the two plugging blocks 33 extend in opposite directions, and correspondingly, as shown in fig. 3, limiting grooves 311 corresponding to the plugging portions 331 one by one and adapted to each other are formed on the inner wall of the plugging groove 31.

With the above arrangement, when it is necessary to mount the housing 20 to the base 10, the plug units 30 provided on the front and rear sides of the housing 20 are operated at the same time, and based on the same operation for both plug units 30, an example of the operation of one of the plug units 30 will be described below.

Specifically, when the housing 20 needs to be installed, the two plugging blocks 33 at the bottom of the plugging element 32 in the plugging unit 30 are moved in opposite directions (i.e. the two plugging blocks 33 are close to each other) until the plugging portions 331 of the two plugging blocks 33 are hidden at the bottom of the plugging element 32 (i.e. the plugging portions 331 do not protrude from the plugging element 32), then the plugging element 32 is aligned with the corresponding plugging grooves 31 on the base 10, and after the plugging element 32 is aligned with the corresponding plugging grooves 31, the housing 20 is vertically placed on the base 10, and at this time, the plugging element 32 is inserted into the corresponding plugging grooves 31 as shown in fig. 6.

After the plug 32 is inserted into the corresponding insertion slot 31 on the base 10, the bottom of the plug 33 will contact with the inner bottom surface of the insertion slot 31, the housing 20 will be completely supported on the base 10, and at this time, the plug 331 of the two plug 33 at the bottom of the plug 32 is just aligned with the corresponding limit slot 311 in the insertion slot 31, then, as shown in fig. 7, the two plug 33 move in opposite directions along the horizontal direction (i.e. the two plug 33 are far away from each other), during this process, the plug 331 of the two plug 33 will be inserted into the corresponding limit slot 311 in the insertion slot 31, so as to limit the position of the housing 20 in the horizontal and vertical directions by using the cooperation of the plug 331 and the limit slot 311, and further, the mounting and fixing of the housing 20 are realized. On the contrary, when the cover 20 needs to be disassembled, the cover 20 can be lifted up and disassembled only by first enabling the plugging portions 331 of the two plugging blocks 33 at the bottom of the plugging piece 32 to withdraw from the corresponding limiting grooves 311 in the plugging grooves 31, and then the operation is simple and convenient.

Therefore, in this embodiment, the plugging units 30 are added on the front and rear sides of the housing 20 to connect the housing 20 and the base 10, so that the housing 20 can be disassembled and assembled without using additional auxiliary tools on the basis of reliable connection between the housing 20 and the base 10, and the whole process is simple and convenient, which is helpful for simplifying the disassembly and assembly process of the housing 20, thereby improving the disassembly and assembly efficiency of the housing 20.

On this basis, the specific structure of the plugging unit 30 is further defined in this embodiment, specifically, in combination with the content shown in fig. 4, the plugging unit 30 further includes driving members 34 corresponding to the plugging blocks 33 one by one, that is, one driving member 34 is used in cooperation with one plugging block 33, where the driving members 34 are used to drive, after the plugging members 32 are inserted into the plugging grooves 31, the plugging portions 331 of the corresponding plugging blocks 33 to be inserted into the corresponding limiting grooves 311, that is, by further adding driving members 34 corresponding to the plugging blocks 33 one by one, the manual auxiliary operation can be further simplified, so that the disassembly and assembly process of the housing 20 is further simplified.

Specifically, as shown in fig. 4, the driving member 34 includes a compression bar 341 and a spring 342, at this time, a movable cavity 32a corresponding to the plug block 33 is disposed in the plug member 32, and the plug block 33 further includes a connection portion 332, where one end of the connection portion 332 is connected to the plug portion 331, and the other end of the connection portion 332 extends into the movable cavity 32 a.

At this time, one end of the compression bar 341 is connected to one side of the connection portion 332, and the other end of the compression bar 341 horizontally extends to the outside of the connector 32, and the compression bar 341 is slidably connected to the connector 32, so that the compression bar 341 can drive the connection portion 332 to freely slide along the horizontal direction. Meanwhile, the spring 342 is horizontally disposed in the movable cavity 32a, one end of the spring 342 is connected to one side of the connecting portion 332 away from the compression bar 341, and the other end of the spring 342 is connected to the inner wall of the movable cavity 32a away from the compression bar 341.

So configured, normally, for a single plug unit 30, the springs 342 of the driving members 34, which are in one-to-one correspondence with the two plug blocks 33 at the bottom of the plug 32, are all in a natural extended state. When the cover 20 needs to be mounted on the base 10, in combination with the foregoing, the pressing rod 341 of the driving member 34 corresponding to the plugging block 33 is pressed to make the pressing rod 341 move towards the inside of the movable cavity 32a along the horizontal direction, and then the connecting portion 332 and the plugging portion 331 of the plugging block 33 are driven to move synchronously by the pressing rod 341 until the plugging portion 331 of the plugging block 33 is hidden at the bottom of the plugging member 32, and in this process, the spring 342 is contracted to pre-store an elastic force.

During the insertion of the socket 32 into the socket 31, as shown in fig. 6, the socket 331 based on the socket block 33 is restricted by the socket 31, and thus the spring 342 cannot release the pre-stored elastic force. As the plug 32 continues to be inserted into the insertion slot 31, after the plug 331 of the plug 33 is aligned with the corresponding limit slot 311 in the insertion slot 31, the spring 342 of the driving member 34 corresponding to the plug 33 releases the pre-stored elastic force, and at this time, as shown in fig. 7, the plug 331 is inserted into the corresponding limit slot 311 in the insertion slot 31 under the elastic force of the spring 342.

Conversely, the plugging portion 331 of the plugging block 33 may be withdrawn from the corresponding limiting groove 311 by pressing the corresponding pressing rod 341, so as to detach the housing 20 from the base 10. It can be seen that, by adopting the driving member 34 composed of the pressing rod 341 and the spring 342 to realize the insertion of the insertion portion 331 of the driving insertion block 33 into the corresponding limiting slot 311, only the pressing rod 341 is needed to be manually pressed during the actual operation, so that the manual auxiliary operation is further simplified, and the disassembly and assembly process of the housing 20 is further simplified.

Meanwhile, in actual implementation, with continued reference to fig. 4, an avoidance port 32b extending along the movement path of the connection portion 332 may be further disposed at the bottom of the movable cavity 32a, and the connection portion 332 of the plug-in block 33 may extend into the movable cavity 32a after passing through the avoidance port 32b, so as to avoid interference with the plug-in unit 32 when the connection portion 332 moves, and the connection portion 332 is slidably connected with the avoidance port 32b, so as to further improve stability of the connection portion 332 when moving in the movable cavity 32 a. Meanwhile, in order to facilitate manual pressing of the corresponding pressing rod 341, the driving member 34 further includes a pressing head 343, and one end of the pressing rod 341 extending to the outside of the plug member 32 is connected with the pressing head 343, and when the corresponding pressing rod 341 needs to be pressed, only the corresponding pressing head 343 needs to be pressed.

In addition, considering that the coil assembly 40 constituting the coil module 100 is normally located inside the case 20, as the electric components in the coil assembly 40 are operated for a long time, a certain amount of heat is generated inside the case 20, and thus the heat dissipation problem of the case 20 is also of concern.

However, the case 20 adopted in the conventional electromagnetic relay is mostly rectangular and has a planar side wall, and the contact area between the air in the external environment and the outer wall of the case 20 is small, so that the heat dissipation area of the case 20 is small and the heat dissipation effect is poor.

Specifically, as shown in fig. 5, the outer wall of the casing 20 is provided with a plurality of heat dissipation grooves 20a, and the plurality of heat dissipation grooves 20a are sequentially and uniformly arranged along the height direction of the casing 20, and further, the plurality of heat dissipation grooves 20a are all closed after extending along the circumferential direction of the casing 20, that is, each heat dissipation groove 20a is in an annular closed structure.

It can be appreciated that, in this embodiment, by providing the outer wall of the housing 20 with the plurality of heat dissipation grooves 20a with annular closed structures, the contact area between the air in the external environment and the outer wall of the housing 20 can be effectively increased, so as to increase the heat dissipation area, and further effectively improve the heat dissipation effect of the housing 20, so that the coil assembly 40 inside the housing 20 can reliably operate in a long-time working state.

On the other hand, the present embodiment adds a sealing structure between the cover 20 and the base 10, considering that the sealing performance between the cover 20 and the base 10 is also important when the cover 20 is mounted on the base 10.

Specifically, as shown in fig. 2, the top surface of the base 10 is provided with a sealing groove 10a, and the sealing groove 10a is closed after extending along the circumferential direction of the base 10, at this time, a sealing ring 10b is provided in the sealing groove 10a, and the sealing ring 10b is a rubber sealing ring, and correspondingly, as shown in fig. 5, a sealing part 20b adapted to the sealing groove 10a is provided at the bottom of the housing 20.

So arranged, when the cover 20 is installed, when the cover 20 is fully loaded on the base 10, the sealing part 20b at the bottom of the cover 20 is inserted into the sealing groove 10a on the base 10, and when the cover 20 is installed and fixed, the sealing part 20b at the bottom of the cover 20 can press the sealing ring 10b in the sealing groove 10a, so that the reliable sealing between the cover 20 and the base 10 is realized.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The relay shell comprises a base and a cover shell arranged on the base, and is characterized in that plug-in units are arranged on the front side and the rear side of the cover shell;

2. The relay housing of claim 1, wherein the plug unit further comprises a driving member in one-to-one correspondence with the plug block; the driving piece is used for driving the inserting part of the inserting block to be inserted into the corresponding limiting groove after the inserting piece is inserted into the inserting groove.

3. The relay housing according to claim 2, wherein a movable cavity corresponding to the plug blocks one by one is arranged in the plug connector, the plug blocks further comprise a connecting part, one end of the connecting part is connected with the plug parts, and the other end of the connecting part extends into the movable cavity;

4. The relay housing according to claim 3, wherein an avoidance port is formed in the bottom of the movable cavity, the connection portion extends into the movable cavity after passing through the avoidance port, and the connection portion is slidably connected with the avoidance port.

5. A relay housing according to claim 3, wherein the driving member further comprises a pressure head, and wherein an end of the pressure lever extending to the outside of the plug member is connected to the pressure head.

6. The relay housing according to claim 1, wherein a plurality of heat dissipation grooves are provided in an outer wall of the case, and the plurality of heat dissipation grooves are provided in order along a height direction of the case.

7. The relay housing of claim 6, wherein the plurality of heat sink slots each extend circumferentially of the shell and then close.

8. The relay housing according to claim 1, wherein a sealing groove is formed in the top surface of the base, the sealing groove is closed after extending along the circumferential direction of the base, and a sealing ring is arranged in the sealing groove;

9. A relay comprising a coil module, wherein the coil module comprises a coil assembly and a relay housing according to any one of claims 1-8;