CN219611341U

CN219611341U - Surge suppressor convenient to disassemble and assemble with contactor

Info

Publication number: CN219611341U
Application number: CN202320145366.2U
Authority: CN
Inventors: 秦嬿
Original assignee: Lexing Electric Wuxi Co ltd
Current assignee: Lexing Electric Wuxi Co ltd
Priority date: 2023-01-18
Filing date: 2023-01-18
Publication date: 2023-08-29
Anticipated expiration: 2033-01-18

Abstract

The utility model relates to a surge suppressor convenient to assemble and disassemble with a contactor, which comprises a base with an upward opening, wherein a PCB assembly is fixed in the base, an upper cover is assembled at the opening end of the base, and the upper cover is assembled with the base in a clamping way to form the surge suppressor; the side of the contactor is provided with the accommodating cavity for the configuration of the surge suppressor, the edge of the upper cover extending to the inside of the contactor is bent upwards to extend to form the elastic clamping part, and the top surface of the elastic clamping part is matched with the clamping of the inner top surface of the accommodating cavity of the contactor, so that the clamping fixation between the surge suppressor and the contactor is realized, the reliability is high, the disassembly and the maintenance are convenient, the efficiency is high, and the practicability is good.

Description

Surge suppressor convenient to disassemble and assemble with contactor

Technical Field

The utility model relates to the technical field of piezoelectric devices, in particular to a surge suppressor convenient to disassemble and assemble with a contactor.

Background

The surge suppressor is an electronic device for providing safety protection for a contactor, and when a peak current or voltage is suddenly generated in a loop due to external interference, a surge module can conduct and shunt in a very short time, so that damage of the surge to other equipment in the loop is avoided.

The surge suppressor is arranged as an accessory outside the contactor, and the surge contactor is integrated with the contactor through later assembly; the existing contactor and the surge suppressor are complex in installation structure and low in reliability, so that the installation, the disassembly and the maintenance are inconvenient, and the assembly efficiency is low.

Disclosure of Invention

The utility model aims at the defects in the prior art, and provides the surge suppressor which is reasonable in structure and convenient to assemble and disassemble with the contactor, so that clamping and fixing between the surge suppressor and the contactor are realized, and the surge suppressor is high in reliability, convenient to assemble, disassemble and maintain, high in efficiency and good in practicability.

The technical scheme adopted by the utility model is as follows:

the surge suppressor comprises a base with an upward opening, wherein a PCB assembly is fixed in the base, an upper cover is assembled at the opening end of the base, and the upper cover is assembled with the base in a clamping way to form the surge suppressor; the side of the contactor is provided with a containing cavity for the configuration of the surge suppressor, the edge of the upper cover extending into the contactor is bent upwards to extend to form an elastic clamping part, and the top surface of the elastic clamping part is matched with the inner top surface of the containing cavity of the contactor in a clamping mode.

As a further improvement of the above technical scheme:

the upper cover comprises a first plane extending into the accommodating cavity, the elastic clamping part is of an inclined structure formed by upwards bending and extending from the edge of the first plane, an acute angle is formed between the elastic clamping part and the first plane, and the elastic clamping part is elastically abutted against the inner top surface of the upper cover.

The elastic clamping part extends upwards to form a buckle at the upper edge of the upward inclined surface, and a clamping hole matched with the buckle is formed in the inner top surface of the accommodating cavity.

The base is of a horizontally arranged convex structure, an upper cover of the horizontally convex structure is assembled at the top opening end of the base, and the small end of the assembled surge suppressor extends into the accommodating cavity of the contactor.

The structure of the upper cover is as follows: the cover body comprises a cover body with a 'convex' structure, wherein the cover body is formed by mutually connecting a small-end first plane and a large-end second plane, and the edge of the first plane far away from the second plane is bent upwards to extend to form an elastic clamping part; the first plane and the second plane are connected through an inclined plane, and the height of the first plane is lower than that of the second plane.

The two sides of the second plane symmetrically extend downwards to form side walls, and the side walls are attached to the outer wall surface of the base; the outer wall surface of the base extends outwards to form a convex buckle, and the side wall is provided with a clamping hole matched with the convex buckle in a clamping manner.

Flanges are formed by extending outwards on the outer wall surfaces of the base at the front and rear of the side wall, and the front flange and the rear flange are vertically distributed.

A groove is formed at the edge of the second plane far away from the first plane, the groove is used for the wiring of the PCB assembly to pass outwards, and a bulge matched with the opening end of the groove extends upwards at the edge of the base; the edges of the first plane bottom surface and the second plane bottom surface, which are far away from each other, respectively extend downwards to form limit stop parts.

The PCB assembly comprises a PCB board attached to the inner bottom surface of the base, components are electrically distributed on the PCB board, two wiring lines are electrically connected to the PCB board, and the wiring lines are electrically connected with the external contactor; the PCB assembly is relatively fixed with the base through glue filling.

The side surface of the contactor above the accommodating cavity is also provided with a wiring hole, and the wiring is inserted into the wiring hole and fixed by an external fastener.

The beneficial effects of the utility model are as follows:

the utility model has compact and reasonable structure and convenient operation, realizes the clamping and fixing between the surge suppressor and the contactor through the arrangement of the accommodating cavity on the contactor and the elastic clamping part on the upper cover of the surge suppressor, has simple structure, is convenient to assemble, disassemble and maintain, effectively ensures the reliability after assembly, has high operation efficiency and good practicability;

the utility model also has the following advantages:

the upper cover is clamped and matched relative to the base, and the upper cover is elastically clamped and matched relative to the contactor, so that the upper cover can be recycled in the process of assembling, disassembling and maintaining the surge suppressor, the materials and the cost are saved, and the flexibility of assembly and use is improved;

according to the utility model, the surge suppressor is arranged to be of a convex structure, and after the small end of the surge suppressor extends into the accommodating cavity of the contactor, the opening of the accommodating cavity is shielded by the large end, so that the mounting structure between the surge suppressor and the accommodating cavity is positioned inside, and meanwhile, the reliability of the overall appearance is ensured.

Drawings

Fig. 1 is a schematic diagram of the surge suppressor of the present utility model.

Fig. 2 is an exploded view of the surge suppressor of the present utility model.

Fig. 3 is a schematic structural view of the upper cover of the present utility model.

Fig. 4 is a schematic structural view of the upper cover according to the present utility model at another view angle.

Fig. 5 is a schematic diagram of the assembly of the surge suppressor and contactor of the present utility model.

Fig. 6 is a partial schematic view of the present utility model in a contact in a mated position with a surge suppressor.

Wherein: 1. a base; 11. a flange; 12. a convex buckle; 13. a protrusion;

2. a PCB assembly; 21. wiring; 22. a component;

3. an upper cover; 30. a cover body; 301. a first plane; 302. a second plane; 31. an elastic clamping part; 32. a buckle; 33. a groove; 34. a sidewall; 35. a clamping hole; 36. a limit stop;

4. a contactor; 41. a wiring hole; 42. a receiving chamber; 43. and (5) clamping the hole.

Detailed Description

The following describes specific embodiments of the present utility model with reference to the drawings.

As shown in fig. 1, 2 and 5, the surge suppressor of the embodiment, which is convenient to assemble and disassemble with a contactor, comprises a base 1 with an upward opening, wherein a PCB assembly 2 is fixed in the base 1, an upper cover 3 is assembled at the open end of the base 1, and the upper cover 3 is assembled with the base 1 in a clamping way to form the surge suppressor; the side of the contactor 4 is provided with a containing cavity 42 for configuring a surge suppressor, the edge of the upper cover 3 extending into the contactor 4 is bent upwards to extend an elastic clamping part 31, and the top surface of the elastic clamping part 31 is matched with the inner top surface of the containing cavity 42 of the contactor 4 in a clamping way.

In this embodiment, the accommodation chamber 42 on the contactor 4 and the elastic clamping portion 31 on the surge suppressor upper cover 3 are provided, so that the surge suppressor and the contactor 4 are clamped and fixed.

In this embodiment, the upper cover 3 in the surge suppressor is assembled and matched with respect to the base 1, and the upper cover 3 is elastically assembled and matched with respect to the contactor 4, so that the upper cover 3 can be recycled in the process of assembling, disassembling and maintaining the surge suppressor, thereby saving materials and cost, and helping to promote the flexibility of assembly and use.

As shown in fig. 3, the upper cover 3 includes a first plane 301 extending into the accommodating cavity 42, the elastic clamping portion 31 is an inclined structure formed by bending and extending upwards from the edge of the first plane 301, an acute angle is formed between the elastic clamping portion 31 and the first plane 301, and the elastic clamping portion 31 elastically abuts against the inner top surface of the upper cover 3.

In the practical use process, the upper cover 3 may be a plastic part or a metal part, and the acute angle between the elastic clamping portion 31 and the first plane 301 is further limited to be within 45 degrees, such as 15 °, 20 °, 25 °, and the like, so that the elastic performance of the elastic clamping portion 31 is ensured, and meanwhile, the structural strength of the upper cover 3 can be reliably ensured.

The upward inclined surface of the elastic clamping portion 31 extends upward to form a buckle 32, and a clamping hole 43 matched with the buckle 32 is formed in the inner top surface of the accommodating cavity 42, as shown in fig. 6.

The height of the surge suppressor positioned at the first plane 301 is higher than that of the accommodating cavity 42, and in the process of assembling the surge suppressor into the accommodating cavity 42 of the contactor 4, the elastic clamping part 31 on the top surface of the upper cover 3 is deformed downwards in a pressed manner, the top end of the elastic clamping part 31 abuts against the inner top surface of the accommodating cavity 42 until the buckle 32 is clamped into the clamping hole 43, so that clamping limit is realized.

The side of the catch 32 facing the accommodating cavity 42 is provided as a bevel, and the opposite side is provided as a straight surface, facilitating the insertion stop of the surge suppressor relative to the contactor 4, and facilitating the reverse disassembly.

During disassembly, the surge suppressor is slightly forced upwards to slightly lift up relative to the contactor 4, and the elastic clamping part 31 deforms to be compressed towards the direction of the first plane 301, so that a space is reserved between the lower part of the surge suppressor and the inner bottom surface of the accommodating cavity 42 of the contactor 4, and the surge suppressor is conveniently pulled out relative to the contactor 4, so that the disassembly is completed.

The base 1 is of a horizontally arranged 'convex' structure, an upper cover 3 of a horizontally 'convex' structure is assembled at the top opening end of the base 1, and the small end of the assembled surge suppressor extends into the accommodating cavity 42 of the contactor 4.

In this embodiment, the surge suppressor is integrally provided in a convex structure, and after the small end thereof extends into the accommodating cavity 42 of the contactor 4, the large end shields the opening of the accommodating cavity 42, so that the mounting structure between the two is located inside, and meanwhile, the reliability of the overall appearance is ensured.

The structure of the upper cover 3 is as follows: the cover body 30 comprises a 'convex' structure formed by mutually connecting a small-end first plane 301 and a large-end second plane 302, wherein the edge of the first plane 301 far away from the second plane 302 is bent upwards to extend to form an elastic clamping part 31, and when the elastic clamping part 31 extends into the accommodating cavity 42 of the contactor 4, the elastic clamping part 31 is compressed and deformed towards the direction of the first plane 301; the engagement between the first plane 301 and the second plane 302 is via an inclined surface, the first plane 301 being lower in height than the second plane 302, so that after the surge suppressor small end is fitted into the receiving chamber 42 of the contactor 4, the lower first plane 301 is located inside the receiving chamber 42 and is shielded by the higher second plane 302 from the opening of the receiving chamber 42.

The two sides of the second plane 302 symmetrically extend downwards to form side walls 34, and the side walls 34 are attached to the outer wall surface of the base 1, so that the upper cover 3 shields the opening end of the base 1 from top to bottom; the outer wall surface of the base 1 extends outwards to form a convex buckle 12, the side wall 34 is provided with a clamping hole 35 matched with the convex buckle 12 in a clamping manner, and the clamping hole 35 is clamped into the convex buckle 12 in the downward movement process of the upper cover 3 relative to the base 1, so that the upper cover 3 is clamped and fixed relative to the base 1.

The flanges 11 are formed by extending outwards on the outer wall surfaces of the base 1 in front of and behind the side walls 34, and the front and rear flanges 11 are vertically arranged, so that the flanges 11 form a guiding function for moving up and down in the process of moving down the upper cover 3 relative to the base 1.

A groove 33 is formed at the edge of the second plane 302 far away from the first plane 301, the groove 33 is used for the wiring 21 of the PCB assembly 2 to pass outwards, a protrusion 13 matched with the opening end of the groove 33 is upwards extended at the edge of the base 1, after the upper cover 3 is assembled with the base 1, the opening of the groove 33 is relatively assembled and sealed by the protrusion 13, so that the wiring 21 is limited in the groove 33 at the inner side of the protrusion 13, and the outwards-passed wiring 21 has the protection and limiting functions of movement; the edges of the bottom surfaces of the first plane 301 and the second plane 302, which are far away from each other, respectively extend downwards to form a limit stop part 36, as shown in fig. 4, the limit stop part 36 is close to or even close to the inner wall surface of the base 1, so that the limit effect is achieved in the front-rear direction after the upper cover 3 is assembled with the base 1, and the overall assembling stability and reliability of the surge suppressor are ensured by assistance.

The PCB assembly 2 comprises a PCB board attached to the inner bottom surface of the base 1, and components 22, including piezoresistors, RC loops and the like, are electrically distributed on the PCB board, and can be conducted and split in a short time through the built-in piezoresistors and RC loops, so that damage of surges to other equipment in the loops is effectively avoided; two wires 21 are electrically connected to the PCB, and the wires 21 are electrically connected with the external contactor 4; the PCB assembly 2 is fixed relative to the base 1 via glue filling.

As shown in fig. 5 and 6, a wiring hole 41 is further formed on the side surface of the contactor 4 above the accommodating cavity 42, and the wiring 21 is inserted into the wiring hole 41 and fixed via an external fastener, so that the electrical connection between the surge suppressor and the contactor 4 is realized, and an electrical circuit is formed.

The surge suppressor comprises a PCB (printed circuit board) and a connecting wire 21, wherein the PCB is provided with components 22 and the connecting wire 21 to form a PCB assembly 2, and then the PCB assembly 2 is placed in a base 1, and the connecting wire 21 passes through upwards; then glue is filled in the base 1, and the fixation of the PCB assembly 2 in the base 1 is completed; and finally, an upper cover 3 is assembled at the upper opening end of the base 1, so that the surge suppressor is installed.

The small end of the surge suppressor is inserted towards the accommodating cavity 42 of the contactor 4, the elastic clamping part 31 on the top surface of the upper cover 3 is pressed to deform downwards, the elastic clamping part 31 is propped against the inner top surface of the accommodating cavity 42 until the buckle 32 relatively moves into the clamping hole 43 of the accommodating cavity 42, and the clamping matching of the surge suppressor relative to the contactor 4 is realized.

When the surge suppressor is detached, the surge suppressor is slightly forced upward, so that the surge suppressor can be quickly detached from the accommodating cavity 42 relative to the contactor 4.

In the actual maintenance process, the upper cover 3 of the surge suppressor can be quickly removed relative to the base 1, the base 1 is replaced along with the PCB assembly 2, and the upper cover 3 can be repeatedly recycled.

The utility model has simple operation, realizes the clamping and fixing between the surge suppressor and the contactor, is convenient to assemble, disassemble and maintain, effectively ensures the reliability after assembly, has high operation efficiency and good practicability.

The above description is intended to illustrate the utility model and not to limit it, the scope of which is defined by the claims, and any modifications can be made within the scope of the utility model.

Claims

1. The utility model provides a with convenient surge suppressor of contactor dismouting which characterized in that: the surge suppressor comprises a base (1) with an upward opening, wherein a PCB assembly (2) is fixed in the base (1), an upper cover (3) is assembled at the opening end of the base (1), and the upper cover (3) is assembled with the base (1) in a clamping way to form the surge suppressor; the side of the contactor (4) is provided with a containing cavity (42) for the configuration of the surge suppressor, the edge of the upper cover (3) extending to the inside of the contactor (4) is bent upwards to extend to form an elastic clamping part (31), and the top surface of the elastic clamping part (31) is matched with the inner top surface of the containing cavity (42) of the contactor (4) in a clamping mode.

2. The surge suppressor of claim 1, wherein the surge suppressor is removable from the contactor, and further wherein: the upper cover (3) comprises a first plane (301) extending into the accommodating cavity (42), the elastic clamping portion (31) is of an inclined structure formed by bending and extending upwards from the edge of the first plane (301), an acute angle is formed between the elastic clamping portion (31) and the first plane (301), and the elastic clamping portion (31) is elastically abutted against the inner top surface of the upper cover (3).

3. The surge suppressor of claim 2, wherein the surge suppressor is removable from the contactor, and further wherein: the upper edge of the upward inclined surface of the elastic clamping part (31) extends upwards to form a buckle (32), and a clamping hole (43) matched with the buckle (32) is formed in the inner top surface of the accommodating cavity (42).

4. The surge suppressor of claim 1, wherein the surge suppressor is removable from the contactor, and further wherein: the base (1) is of a horizontally arranged convex structure, an upper cover (3) of the horizontally convex structure is assembled at the top opening end of the base (1), and the small end of the assembled surge suppressor extends into the accommodating cavity (42) of the contactor (4).

5. The surge suppressor of claim 4, wherein the surge suppressor is removable from the contactor, and further wherein: the structure of the upper cover (3) is as follows: the cover body (30) with a 'convex' structure is formed by mutually connecting a small-end first plane (301) and a large-end second plane (302), and the edge of the first plane (301) far away from the second plane (302) is bent upwards to form an elastic clamping part (31); the first plane (301) and the second plane (302) are connected through an inclined plane, and the height of the first plane (301) is lower than that of the second plane (302).

6. The surge suppressor of claim 5, wherein the surge suppressor is removable from the contactor, and further wherein: the two sides of the second plane (302) symmetrically extend downwards to form side walls (34), and the side walls (34) are attached to the outer wall surface of the base (1); the outer wall surface of the base (1) extends outwards to form a convex buckle (12), and a clamping hole (35) matched with the convex buckle (12) in a clamping manner is formed in the side wall (34).

7. The surge suppressor of claim 6, wherein the surge suppressor is removable from the contactor, and further wherein: flanges (11) are formed by extending outwards on the outer wall surfaces of the base (1) positioned in front of and behind the side walls (34), and the front flange and the rear flange (11) are vertically distributed.

8. The surge suppressor of claim 5, wherein the surge suppressor is removable from the contactor, and further wherein: a groove (33) is formed at the edge of a second plane (302) far away from the first plane (301), the groove (33) is used for the wiring (21) of the PCB assembly (2) to pass outwards, and a bulge (13) matched with the opening end of the groove (33) extends upwards at the edge of the base (1); the edges of the bottom surfaces of the first plane (301) and the second plane (302) which are far away from each other respectively extend downwards to form limit stop parts (36).

9. The surge suppressor of claim 1, wherein the surge suppressor is removable from the contactor, and further wherein: the PCB assembly (2) comprises a PCB board attached to the inner bottom surface of the base (1), components (22) are electrically distributed on the PCB board, two wires (21) are electrically connected to the PCB board, and the wires (21) are electrically connected with the external contactor (4); the PCB assembly (2) is fixed relative to the base (1) through glue filling.

10. The surge suppressor of claim 9, wherein the surge suppressor is removable from the contactor, and further wherein: a wiring hole (41) is also formed in the side face of the contactor (4) above the accommodating cavity (42), and the wiring (21) is inserted into the wiring hole (41) and fixed through an external fastener.