CN218351393U

CN218351393U - Mounting structure of current transformer and switching element

Info

Publication number: CN218351393U
Application number: CN202221383581.8U
Authority: CN
Inventors: 沈维佳; 吴昊; 李凌飞; 农振奖; 徐永富; 韦尚靖; 袁亚; 宫达; 马成; 李小双; 吴迪; 郭福安
Original assignee: Shanghai Chint Intelligent Technology Co Ltd
Current assignee: Shanghai Chint Intelligent Technology Co Ltd
Priority date: 2022-05-26
Filing date: 2022-05-26
Publication date: 2023-01-20
Anticipated expiration: 2032-05-26

Abstract

The utility model provides a current transformer's mounting structure and adopt this mounting structure's switch element, includes switch element's shell and mutual-inductor module be provided with at least a set of sliding construction who mutually supports between shell and the mutual-inductor module be equipped with the circuit board in the shell, the circuit board is equipped with inserts the spigot, and when the mutual-inductor module passes through sliding construction and shell sliding fit, the wiring end of mutual-inductor module and the spigot plug of inserting of circuit board are connected. The utility model discloses connect the spigot in the circuit board setting, when mutual-inductor and shell sliding fit, the wiring end of mutual-inductor can directly carry out the plug with the spigot of inserting of circuit board and be connected, avoids using the flexible conductor, possesses the convenient advantage of wiring, does benefit to assurance signal transmission's stability.

Description

Mounting structure of current transformer and switching element

Technical Field

The utility model relates to a low-voltage apparatus field, concretely relates to current transformer's mounting structure and switching element.

Background

The circuit breaker is an electrical appliance with a large using amount and a wide application range, in a conventional circuit breaker, a mutual inductor and a circuit board are generally connected by a flexible conductor with a terminal, but the flexible conductor has inevitable problems in the using process, such as terminal falling, flexible conductor fracture, flexible conductor joint loosening and the like, so that signals of the mutual inductor cannot be transmitted, and further the function failure of the circuit breaker is caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's defect, provide a simple structure, high current transformer's of reliability mounting structure and switching element.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a current transformer's mounting structure, includes switching element's shell and mutual-inductor module be provided with at least a set of sliding construction who mutually supports between shell and the mutual-inductor module be equipped with the circuit board in the shell, the circuit board is equipped with inserts the terminal, and when the mutual-inductor module passes through sliding construction and shell sliding fit, the wiring end of mutual-inductor module is connected with inserting the terminal plug of inserting of circuit board.

Furthermore, the shell is provided with a second limiting groove, and the circuit board is inserted into the second limiting groove along the sliding direction perpendicular to the mutual inductor module.

Furthermore, at least one group of sliding structures is provided with a positioning structure, the positioning structure is positioned at one end of each sliding structure close to the circuit board, and when the wiring end of the mutual inductor is plugged with the plugging terminal of the circuit board, the mutual inductor module is limited by the positioning structure to move along the direction perpendicular to the sliding direction.

And the transformer module further comprises a baffle assembled on the shell, and the baffle is positioned on one side of the circuit board, which is back to the transformer module.

Further, the baffle is equipped with a plurality of beads towards one side of circuit board, the face butt of bead and circuit board for prevent that the circuit board from taking place to warp, the shell is equipped with first spacing groove, and the baffle is pegged graft in first spacing inslot.

Further, the mutual inductor module is a three-phase integrated mutual inductor module.

Furthermore, sliding construction includes first sliding part and the second sliding part of mutually supporting, first sliding part protrusion sets up in the face looks perpendicular of the central axis of shell and first sliding part and circuit board, and the cooperation of second sliding part sets up in the casing bottom surface middle part of mutual-inductor module.

Further, first sliding part is the bar boss, the outside protrusion of at least one side lateral wall of bar boss forms the ka tai, the second sliding part be with first sliding part sliding fit's spout structure, the lateral wall that is close to the tip in the second sliding part seted up can with ka tai complex draw-in groove.

Further, the card platform that wholly is T shape is formed by the outside protrusion of both sides lateral wall of bar boss, and the card platform of T shape corresponds to pass two draw-in grooves that set up in the relative both sides of second sliding part.

The utility model also provides a switch element, include the shell and assemble mutual-inductor module and the circuit board in the shell, mutual-inductor module adopts as above current transformer's mounting structure, with shell, circuit board cooperation installation.

The utility model discloses a current transformer's mounting structure connects the spigot in the circuit board setting, and when mutual-inductor and shell sliding fit, the wiring end of mutual-inductor can directly carry out the plug with the spigot of inserting of circuit board and be connected, avoids using the flexible conductor, possesses the convenient advantage of wiring, does benefit to assurance signal transmission's stability.

In addition, the mutual inductor can be limited to move along the direction perpendicular to the surface of the shell by arranging the positioning structure, the assembly stability of the mutual inductor and the shell is improved, and the stability of signal transmission is further ensured.

In addition, a baffle is arranged on one side of the circuit board, and the baffle is abutted with the circuit board to prevent the circuit board from deforming.

Drawings

Fig. 1 is a schematic structural diagram of the mutual inductor module and the circuit board in place by plugging;

FIG. 2 is a front view of FIG. 1;

fig. 3 is a schematic structural diagram of the transformer module of the present invention not yet inserted into the circuit board;

fig. 4 is a schematic diagram of the middle case, the transformer module, the circuit board and the baffle of the present invention;

fig. 5 is a schematic structural view of the present invention in a state where the casing and the transformer module are separated;

fig. 6 is a cross-sectional view of the first and second limiting grooves of the present invention;

fig. 7 is a cross-sectional view of the sliding structure of the present invention;

fig. 8 is a cross-sectional view of the middle positioning structure of the present invention.

Detailed Description

The following further describes a specific embodiment of a mounting structure and a switching element of a current transformer according to the present invention, with reference to the embodiments shown in fig. 1 to 8. The present invention is not limited to the description of the following embodiments, but a mounting structure and a switching element of a current transformer.

The utility model provides a current transformer's mounting structure, includes switching element's shell 1 and mutual-inductor module 2 be provided with at least a set of sliding construction who mutually supports between shell 1 and the mutual-inductor module 2 be equipped with circuit board 3 in the shell 1, circuit board 3 is equipped with and connects plug terminal 31, and when mutual-inductor module 2 passes through sliding construction and shell 1 sliding fit, the wiring end 23 of mutual-inductor module 2 and the plug terminal 31 plug of connecting of circuit board 3 are connected.

The utility model discloses a current transformer's mounting structure connects plug terminal 31 in circuit board 3 setting, and when mutual-

inductor module

2 and 1 sliding fit of shell, mutual-inductor module 2's wiring end 23 can directly carry out the plug with plug terminal 31 of connecting of circuit board 3 and be connected, avoids using the flexible conductor, possesses the convenient advantage of wiring, does benefit to assurance signal transmission's stability.

With reference to fig. 1 to 8, an embodiment of a switching element is provided, in this embodiment, the switching element is a circuit breaker, the circuit breaker includes a housing 1, a transformer module 2 is assembled on the housing 1, at least one set of mutually matched sliding structures is arranged between the housing 1 and the transformer module 2, each set of sliding structures includes a first sliding portion 11 and a second sliding portion 21, which are mutually matched, wherein the first sliding portion 11 is arranged in the middle of the housing 1, the second sliding portion 21 is arranged in the middle of the bottom surface of the housing of the transformer module 2, and the transformer module 2 is slidably assembled with the first sliding portion 11 through the second sliding portion 21; the shell 1 is also internally provided with a circuit board 3, preferably, the circuit board 3 is inserted into the shell 1, preferably, the shell 1 is provided with a second limit groove 14 for inserting the circuit board 3, two side edges of the circuit board 3 are inserted into the second limit groove 14 for matching, the insertion direction of the circuit board 3 is perpendicular to the sliding direction of the transformer module 2, the insertion terminal 31 arranged on the circuit board 3 is positioned on one side facing the transformer module 2, and when the transformer module 2 is slidably matched with the shell 1 through a sliding structure, the wiring terminal 23 of the transformer module 2 is connected with the insertion terminal 31 of the circuit board 3 in a plugging and unplugging manner.

Further, the shell 1 is further equipped with a baffle 4, the baffle 4 is located on one side of the circuit board 3 back to the transformer module 2, preferably, the shell 1 is provided with a first limit groove for plugging the baffle 4, one side of the baffle 4 facing the circuit board 3 is provided with a plurality of convex ribs 41, and the convex ribs 41 are abutted against the surface of the circuit board 3 to prevent the circuit board 3 from deforming.

Preferably, at least one of them set of sliding construction is equipped with location structure, location structure is located the one end that sliding construction is close to circuit board 3, connect the spigot 31 of connecing at wiring end 23 of mutual-inductor module 2 and circuit board 3 and peg graft when, by location structure restriction mutual-inductor module 2 along the direction removal of perpendicular to slip direction, the optional ka tai 12 of location structure, buckle structure, mutually supported ka tai 12 and draw-in groove 22 structure and other can realize spacing structure, location structure is preferred to be set up at sliding construction's one end tip, of course, also can wholly set up along sliding construction, but can improve the cost of manufacture.

As shown in fig. 3-8, in this embodiment, two sets of sliding structures are disposed between the housing 1 and the transformer module 2, each set of sliding structures includes a first sliding portion 11 and a second sliding portion 21 that are mutually matched, in this embodiment, the housing 1 includes a base, the transformer module 2, the circuit board 3 and the baffle 4 are all assembled on the base, wherein the circuit board 3 and the baffle 4 are plugged into the same end of the base, the first sliding portion 11 is a strip-shaped boss disposed in the middle of the base, the strip-shaped boss can also be regarded as a partition plate disposed in the base, the first sliding portion 11 is formed by the upper edge of the partition plate, the central axis of the first sliding portion 11 is perpendicular to the plate surface of the circuit board 3, the second sliding portion 21 is disposed in the middle of the bottom surface of the housing of the transformer module 2 in a matching manner, the second sliding portion 21 is a strip-shaped sliding chute structure, the opening direction of the chute structure faces downward direction in fig. 5, both ends of the chute structure are opened to facilitate sliding plugging into the strip-shaped boss, and the transformer module 2 slides on the upper surface of the housing 1 in the left-right direction in fig. 3. At least one side wall of the bar-shaped boss protrudes outwards to form a clamping table 12, a clamping groove 22 which can be matched with the clamping table 12 is arranged on the side wall, close to the end, of the second sliding portion 21, in the embodiment, the side walls, protruding outwards, of the two sides of the bar-shaped boss form the clamping table 12 which is integrally in a T shape, the upper surface of the T-shaped clamping table 12 in fig. 5, 7 and 8 is flush with the upper surface of the first sliding portion 11 so as to be in sliding fit with the bottom wall of the sliding groove structure, the clamping grooves 22 are respectively arranged on the side walls, serving as the two opposite sides of the sliding groove structure, of the second sliding portion 21, each clamping groove 22 in fig. 4 is arranged on the two side walls at the left end of the sliding groove structure, each clamping groove 22 is a notch formed in the end portion of the side wall of the sliding groove structure, the left end portion of the sliding groove structure is in a step shape, and the T-shaped clamping table 12 can correspondingly penetrate through each clamping groove 22 and be matched with the step shape of the end portion of the sliding groove structure, and therefore a positioning structure for limiting the mutual inductor module 2 to move up and down is formed. Of course, the positioning structure may also adopt other structures, and the specific position thereof is not limited to the position near the end of the sliding structure; of course, the T-shaped catch 12 may not pass through the side wall of the chute structure.

In addition, both the first sliding portion 11 and the second sliding portion 21 may adopt a sliding groove structure, and the two sliding groove structures are slidably inserted into each other, and the second sliding portion 21 may not be provided on the bottom surface of the housing of the transformer module 2, but may be provided on the side wall of the housing of the transformer module 2, but the first sliding portion 11 also adjusts the structure and the position accordingly.

As shown in fig. 1-4, the circuit board 3 and the baffle 4 are both disposed at the left end of the housing 1, a first limiting groove 13 and a second limiting groove 14 are disposed at the left end of the housing 1 in parallel, two side edges of the baffle 4 are in insertion fit with the first limiting groove 13, two side edges of the baffle 4 can form a convex edge with a smaller thickness to facilitate insertion with the first limiting groove 13, the baffle 4 is located at the left side of the circuit board 3, a plurality of convex edges 41 are convexly disposed at one side of the baffle 4 facing the circuit board 3, that is, a plurality of convex edges 41 are disposed at the right side of the circuit board 3, and the convex edges 41 abut against the surface of the circuit board 3 to prevent the circuit board 3 from deforming, in this embodiment, the length of the baffle 4 is smaller than that of the circuit board 3, and the transformer module 2 and the circuit board 3 can be covered after the base is covered with the cover to form the complete housing 1; the both sides side of circuit board 3 is pegged graft with second spacing groove 14 and is cooperated, is provided with at the right side face of circuit board 3 and connects and insert terminal 31 and relative with mutual-inductor module 2, and the wiring end 23 of mutual-inductor module 2 sets up in mutual-inductor module 2's casing one end, also sets up in mutual-inductor module 2's casing left end, also is located the one end that is close to draw-in groove 22.

In this embodiment, mutual-inductor module 2 is three-phase integrative mutual-inductor module 2 in order to satisfy the three-phase wiring of circuit breaker, namely mutual-inductor module 2 is the integrated integral type mutual-inductor of three-phase independence mutual-inductor, integrated back, an integrated socket replaces original three socket, three-phase integrative mutual-inductor module 2 is pegged graft with same circuit board 3, so can only set up one at circuit board 3 and connect and insert terminal 31, of course, also can be provided with three mutual-inductor in shell 1, three mutual-inductor module 2 corresponds a circuit board 3, need set up three on circuit board 3 this moment and connect and insert terminal 31.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims

1. A mounting structure of a current transformer, comprising a case (1) of a switching element and a transformer module (2), characterized in that: be provided with at least a set of sliding construction of mutually supporting between shell (1) and mutual-inductor module (2) be equipped with circuit board (3) in shell (1), circuit board (3) are equipped with and connect socket terminal (31), and when mutual-inductor module (2) passed through sliding construction and shell (1) sliding fit, wiring end (23) of mutual-inductor module (2) and the socket terminal (31) plug of circuit board (3) are connected.

2. A mounting structure of a current transformer according to claim 1, wherein: the shell (1) is provided with a second limiting groove (14), and the circuit board (3) is inserted into the second limiting groove (14) along the sliding direction perpendicular to the mutual inductor module (2).

3. A mounting structure of a current transformer according to claim 1, wherein: at least one group of sliding structures are provided with positioning structures, the positioning structures are located at one ends, close to the circuit board (3), of the sliding structures, and when the wiring ends (23) of the mutual inductor modules (2) are plugged with the plugging terminals (31) of the circuit board (3), the mutual inductor modules (2) are limited by the positioning structures to move in the direction perpendicular to the sliding direction.

4. A mounting structure of a current transformer according to claim 1, wherein: the transformer module is characterized by further comprising a baffle (4) assembled on the shell (1), wherein the baffle (4) is positioned on one side, back to the transformer module (2), of the circuit board (3).

5. The mounting structure of a current transformer according to claim 4, wherein: one side of the baffle (4) facing the circuit board (3) is provided with a plurality of convex ribs (41), the convex ribs (41) are abutted to the surface of the circuit board (3) to prevent the circuit board (3) from deforming, the shell (1) is provided with a first limiting groove (13), and the baffle (4) is inserted into the first limiting groove (13).

6. A mounting structure of a current transformer according to claim 1, wherein: the mutual inductor module (2) is a three-phase integrated mutual inductor module (2).

7. A mounting structure of a current transformer according to claim 1, wherein: the sliding structure comprises a first sliding portion (11) and a second sliding portion (21) which are matched with each other, the first sliding portion (11) is arranged in the shell (1) in a protruding mode, the central axis of the first sliding portion (11) is perpendicular to the surface of the circuit board (3), and the second sliding portion (21) is arranged in the middle of the bottom face of the shell of the mutual inductor module (2) in a matched mode.

8. A mounting structure of a current transformer according to claim 7, wherein: first sliding part (11) are the bar boss, the outside protrusion of at least one side lateral wall of bar boss forms ka tai (12), second sliding part (21) be with first sliding part (11) sliding fit's spout structure, be close to the lateral wall of tip in second sliding part (21) and seted up can with ka tai (12) complex draw-in groove (22).

9. A mounting structure of a current transformer according to claim 8, wherein: the clamping table (12) integrally in a T shape is formed by outwards protruding the side walls of the two sides of the strip-shaped boss, and the T-shaped clamping table (12) correspondingly penetrates through the two clamping grooves (22) formed in the two opposite sides of the second sliding portion (21).

10. A switching element comprising a housing (1) and a transformer module (2) and a wiring board (3) assembled in the housing (1), characterized in that: the transformer module (2) is installed by matching with the shell (1) and the circuit board (3) by adopting the installation structure of the current transformer according to any one of claims 1 to 9.