CN221262244U

CN221262244U - High-voltage direct-current relay

Info

Publication number: CN221262244U
Application number: CN202323236549.4U
Authority: CN
Inventors: 李一挺; 冯天华
Original assignee: Neptune Electric Kunshan Co ltd
Current assignee: Neptune Electric Kunshan Co ltd
Priority date: 2023-11-29
Filing date: 2023-11-29
Publication date: 2024-07-02
Anticipated expiration: 2033-11-29

Abstract

The utility model discloses a high-voltage direct-current relay, which comprises a coil assembly, a PCB (printed circuit board), an insulating cover and an auxiliary contact part, wherein the coil assembly comprises a framework, a coil wound on the framework, a first connecting piece arranged at one end of the framework and used for winding the end head of the coil, and a second connecting piece arranged at the other end of the framework and used for connecting with other external devices; the PCB is connected between the first connecting piece and the second connecting piece; the insulating cover is opposite to the coil assembly and is arranged at intervals; the auxiliary contact part comprises an auxiliary fixed contact fixedly arranged on the insulating cover, an insulating supporting part arranged beside the insulating cover and clamped with the other end of the framework, and a third connecting piece locally buried in the insulating supporting part, one end of the third connecting piece is connected with the auxiliary fixed contact, and the other end of the third connecting piece is positioned beside the second connecting piece and is connected with other external devices. The high-voltage direct current relay has the characteristics of simple, reasonable and compact structure, small size, easiness in processing and manufacturing and the like, and meets the market demand.

Description

High-voltage direct-current relay

Technical Field

The utility model relates to the technical field of relays, in particular to a high-voltage direct-current relay which is compact in structure, small in size and easy to process and manufacture.

Background

The relay product in the existing market generally adopts a movable contact piece direct-acting structure, and mainly comprises two fixed contact pieces, movable contact pieces which are oppositely arranged with the two fixed contact pieces, and an electromagnetic driving device connected with the movable contact pieces, wherein the electromagnetic driving device comprises a coil assembly, a movable iron core, a push rod and the like, and the electromagnetic driving device can drive the movable contact pieces to move towards or back to the fixed contact pieces so as to realize suction connection or disconnection with the fixed contact pieces.

Along with the continuous expansion of the application field of the relay, the requirement on the relay is higher and higher, and particularly for the relay applied to the new energy field, the relay is required to meet the characteristics of high voltage and small volume, and is also required to be provided with auxiliary contacts.

In the current relay products with auxiliary contacts, a PCB for controlling the coil to work is usually arranged on the upper part of the relay, and the PCB and the auxiliary contacts are simultaneously led out from the top side of the relay. Although the mounting structure can reduce the processing difficulty, the defects of the relay product such as non-compact structure, large volume and high manufacturing cost are caused, and the market demand can not be well met.

In view of this, the present utility model has been made.

Disclosure of Invention

In order to overcome the defects, the utility model provides the high-voltage direct-current relay which is simple, reasonable and compact in structure, small in size, easy to process and manufacture, low in manufacturing cost, well meets market demands and expands the application field of the relay.

The technical scheme adopted by the utility model for solving the technical problems is as follows: a high voltage dc relay comprising:

The coil assembly comprises a framework, a coil wound on the framework, a first connecting piece arranged at one end of the framework and used for winding the end head of the coil, and a second connecting piece arranged at the other end of the framework and used for connecting with other external devices;

The PCB is connected between the first connecting piece and the second connecting piece; an insulating cover facing the coil block and disposed at a distance from the coil block;

The auxiliary contact part comprises an auxiliary fixed contact fixedly arranged on the insulating cover, an insulating supporting part arranged beside the insulating cover and clamped with the other end of the framework, and a third connecting piece locally buried in the insulating supporting part, wherein one end of the third connecting piece is connected with the auxiliary fixed contact, and the other end of the third connecting piece is positioned beside the second connecting piece and is also connected with other external devices.

As a further improvement of the present utility model, the coil assembly is located below the insulating cover;

The framework comprises a framework main body, an installation part arranged at the upper end of the framework main body and a clamping groove part concavely arranged at the installation part;

The second connecting piece is arranged on the mounting part; the insulation supporting portion is arranged vertically, the upper side of the insulation supporting portion is close to the top side of the insulation cover, and the lower side of the insulation supporting portion is clamped to the clamping groove portion.

As a further improvement of the utility model, the second connecting piece comprises a plugging part A which is locally embedded in the mounting part and is plugged and fixed with one side of the PCB, and a plugging part B which is connected with the plugging part A and is used for being connected with other external devices;

The third connecting piece comprises a first section part, a second section part and a third section part which are sequentially connected, wherein the first section part is connected with the auxiliary static contact, the second section part is buried in the insulating supporting part, the third section part is connected with other external devices, and meanwhile, the third section part and the plug-in part B are arranged side by side.

As a further improvement of the utility model, the plug-in part A is shaped like 匚, the plug-in part B is shaped like a strip extending vertically, and the plug-in part A and the plug-in part B are integrally formed;

The first section part is in an inverted L shape, the second section part is in an L shape, the third section part is also in a strip shape extending vertically, and the first section part, the second section part and the third section part are integrally formed.

As a further improvement of the utility model, the top surface of the plug-in connection part B and the top surface of the third section part are positioned on the same horizontal plane;

The insulating support part is L-shaped to match with the shape of the second section part; and the insulating support part and the third connecting piece are formed into an integral structure through an injection molding process.

As a further improvement of the present utility model, the skeleton main body, the mounting portion, and the clamping groove portion are integrally injection molded; the second connecting piece and the framework are formed into an integrated structure through an injection molding process; a jack A for being in plug-in fit with the plug-in part A is arranged on one side of the PCB; and the first section part is provided with a jack B for being in close fit and plug connection with the auxiliary fixed contact.

As a further improvement of the utility model, the number of the auxiliary fixed contacts is two, and correspondingly, the number of the third connecting pieces is also two; and the second connecting pieces are also configured into two.

As a further improvement of the utility model, the coil is wound on the skeleton main body, and the first connecting piece is arranged at the lower end of the skeleton main body.

As a further improvement of the utility model, the first connecting piece comprises a plug-in part C which is fixedly connected with the lower end of the framework main body in a plug-in mode, a receiving part which is connected with the plug-in part C and is used for winding the end head of the coil at the same time, and a plug-in part D which is also connected with the plug-in part C and is fixedly connected with the other side of the PCB in a plug-in mode.

As a further improvement of the utility model, the plugging part C is in a U shape which is transversely placed, the receiving part is in a strip shape which extends vertically, and the plugging part D is in a strip shape which extends transversely; the plug-in part C, the bearing part and the plug-in part D are integrally formed;

In addition, the lower end of the framework main body is provided with an inserting hole C for being in close fit and inserting fit with the inserting part C; and a jack D for being in plug-in fit with the plug-in connection part D is arranged on the other side of the PCB.

The beneficial effects of the utility model are as follows: compared with the prior art, ① on the one hand, the coil and the leading-out end (namely the second connecting piece) of the PCB are integrated with the leading-out end (namely the third connecting piece) of the auxiliary contact to form a connecting end piece which is connected with other external devices; on the other hand sets up the PCB board to arrange along relay direction of height, can make the relay like this under satisfying the requirement of high voltage and taking auxiliary contact, still make relay structure comparatively compact to fine reduction relay is in the ascending space of direction of height, and then makes relay volume miniaturized, fine satisfying market demand, has expanded the application field of relay. ② In the relay structure, the coil component and the auxiliary contact part are respectively of a modularized structure, and a buckle connection mode is adopted between the coil component and the auxiliary contact part, so that the assembly process of a relay product is well simplified, and the assembly efficiency and the assembly precision of the relay product are improved. ③ In the relay structure, wiring among the coil assembly, the PCB and the auxiliary contact part is neat and compact, and the size miniaturization of a relay product is further facilitated. ④ The relay product has the advantages of simple and reasonable integral structure, easy processing and manufacturing, low manufacturing cost and contribution to popularization and application.

Drawings

Fig. 1 is a schematic diagram of a partial structure of a high-voltage dc relay according to the present utility model;

FIG. 2 is a schematic diagram of a second partial structure of the HVDC relay according to the present utility model;

Fig. 3 is a schematic view of a structure in which the coil assembly, the PCB board and the auxiliary contact portion shown in fig. 2 are assembled together;

FIG. 4 is a schematic view of the coil assembly shown in FIG. 3;

FIG. 5 is a schematic view of the first connector shown in FIG. 4;

FIG. 6 is a schematic view of the second connector shown in FIG. 4;

fig. 7 is a schematic view of the structure of the auxiliary contact portion shown in fig. 3;

FIG. 8 is a schematic view of the third connector shown in FIG. 7;

fig. 9 is a schematic structural view of the PCB board shown in fig. 3.

The following description is made with reference to the accompanying drawings:

1. a coil assembly; 10. a skeleton; 100. a skeleton main body; 101. a mounting part;

102. A clamping groove part; 103. a jack C; 11. a coil; 12. a first connector; 120. a plug-in part C; 121. a receiving part; 122. a plug-in part D; 13. a second connector; 130. a plug-in part A; 131. a plug-in part B; 2. a PCB board; 20. a jack A; 21. a jack D; 3. an insulating cover; 4. an auxiliary contact portion; 40. an auxiliary fixed contact; 41. an insulating support portion; 42. a third connecting member; 420. a first segment; 421. a second segment; 422. a third section; 423. and a jack B.

Detailed Description

The preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

Example 1:

Referring to fig. 1 to 9, embodiment 1 provides a high voltage dc relay, which mainly includes a coil assembly 1, a PCB board 2, an insulating cover 3 and an auxiliary contact portion 4, wherein the coil assembly 1 includes a frame 10, a coil 11 wound around the frame 10, a first connecting member 12 provided at one end of the frame 10 for winding a tip of the coil 11, and a second connecting member 13 provided at the other end of the frame 10 for connecting with other external devices; the PCB 2 is connected between the first connecting piece 12 and the second connecting piece 13; the insulating cover 3 is opposite to the coil assembly 1 and is arranged at intervals; the auxiliary contact part 4 comprises an auxiliary fixed contact 40 fixedly arranged on the insulating cover 3, an insulating supporting part 41 arranged beside the insulating cover 3 and simultaneously clamped with the other end of the framework 10, and a third connecting piece 42 locally buried in the insulating supporting part 41, wherein one end of the third connecting piece 42 is connected with the auxiliary fixed contact 40, and the other end of the third connecting piece 42 is positioned beside the second connecting piece 13 and is also connected with other external devices.

As can be seen from the above, compared with the prior art, ① according to the present utility model, on one hand, the coil and the lead-out terminal (i.e., the second connector) of the PCB board are integrated with the lead-out terminal (i.e., the third connector) of the auxiliary contact, and form a "connection end piece" connected to other external devices together (and the "connection end piece" is led out from a stand side of the relay); on the other hand sets up the PCB board to arrange along relay direction of height, can make the relay like this under satisfying the requirement of high voltage and taking auxiliary contact, still make relay structure comparatively compact to fine reduction relay is in the ascending space of direction of height, and then makes relay volume miniaturized, fine satisfying market demand, has expanded the application field of relay. ② In the relay structure, the coil component and the auxiliary contact part are respectively of a modularized structure, and a buckle connection mode is adopted between the coil component and the auxiliary contact part, so that the assembly process of a relay product is well simplified, and the assembly efficiency and the assembly precision of the relay product are improved. ③ In the relay structure, wiring among the coil assembly, the PCB and the auxiliary contact part is neat and compact, and the size miniaturization of a relay product is further facilitated. ④ The relay product has the advantages of simple and reasonable integral structure, easy processing and manufacturing, low manufacturing cost and contribution to popularization and application.

The specific structure of the high voltage dc relay according to the present utility model will be described in detail.

First, the coil block 1 is concerned.

With continued reference to fig. 1 to 4, the coil assembly 1 is located directly below the insulating cover 3 based on the vertical placement state of the high-voltage dc relay according to the present utility model. The insulating cover 3 is made of ceramic material, namely the ceramic cover in the conventional relay product.

Based on the above directional definition, the interconnection relationship among the bobbin 10, the coil 11, the first connector 12 and the second connector 13 in the coil assembly 1 is: the frame 10 includes an i-shaped frame body 100, a mounting portion 101 provided at an upper end of the frame body 100, and a locking groove portion 102 provided in the mounting portion 101. The coil 11 is wound on the skeleton main body 100, the first connecting piece 12 is disposed at the lower end of the skeleton main body 100, and the end of the coil 11 is wound on the first connecting piece 12. The second connecting piece 13 is disposed on the mounting portion 101, and the second connecting piece 13 is further used for connecting with other external devices (such as plug connection).

In addition, since the PCB 2 is connected between the first connecting piece 12 and the second connecting piece 13, it can be known that the PCB is disposed vertically, so that the space of the relay in the height direction can be well reduced, the height dimension of the relay can be further reduced, the miniaturization development of the relay is facilitated, and the application field of the relay is further expanded.

Further preferably, the skeleton main body 100, the mounting portion 101, and the locking groove portion 102 are integrally injection molded. It will be appreciated that the frame 10 is a unitary structure made of an insulating plastic material.

Further preferably, the specific structure for implementing that the first connecting piece 12 is connected to the lower end of the skeleton main body 100, the coil 11, and the PCB 2 respectively is: with continued reference to fig. 4 and fig. 5, the first connecting member 12 includes a plugging portion C120 plugged and fixed to the lower end of the skeleton main body 100, a receiving portion 121 connected to the plugging portion C120 and used for winding the end of the coil 11, and a plugging portion D122 connected to the plugging portion C120 and plugged and fixed to the other side of the PCB 2.

Still further preferably, as shown in fig. 5, the plugging portion C120 has a U shape disposed in a transverse direction, the receiving portion 121 has a strip shape extending in a vertical direction, and the plugging portion D122 has a strip shape extending in a transverse direction; and the insertion portion C120, the receiving portion 121, and the insertion portion D122 are integrally formed. That is, the first connecting member 12 is a unitary structure made of a conductive metal material.

Based on the structure of the first connecting piece 12, it can be understood that a jack C103 (see fig. 4) for being in close-fit and plug-in fit with the plug-in portion C120 is provided at the lower end of the skeleton main body 100; and a jack D21 (see fig. 9) for being in plug-in fit with the plug-in portion D122 is arranged on the other side of the PCB 2.

Description: ① The connection mode of interference tight fit is adopted between the plug-in connection part C120 and the jack C103, so that the connection between the first connecting piece 12 and the framework 10 is ensured to be firm, the damage of components caused by drawing, impact, vibration and the like is avoided, and the whole coil assembly has good drawing, impact and vibration resistance. ② The plugging portion D122 and the jack D21 do not need to be in tight-fit connection, but after the plugging portion D122 is inserted into the jack D21, the plugging portion D122 and the jack D21 need to be welded and fixedly connected through a soldering process.

Further preferably, the specific structure for implementing the connection between the second connecting piece 13 and the mounting portion 101, the PCB 2, and other external devices is: with continued reference to fig. 4 and fig. 6, the second connecting piece 13 includes a plugging portion a130 partially embedded in the mounting portion 101 and plugged and fixed with one side of the PCB 2, and a plugging portion B131 connected with the plugging portion a130 and connected with other external devices.

Still further preferably, as shown in fig. 6, the plugging portion a130 is shaped like a figure 匚, the plugging portion B131 is shaped like a strip extending vertically, and the plugging portion a130 and the plugging portion B131 are integrally formed. It can be understood that the second connecting member 13 is also a unitary structure made of a conductive metal material.

And based on the second connecting member 13 structure, it can be seen that: the second connecting member 13 and the frame 10 (specifically, the mounting portion 101) are formed into a unitary structure by an injection molding process (see fig. 4).

The portion of the plugging portion a130 exposed outside the mounting portion 101 is plugged and fixed with one side of the PCB 2, and one side of the PCB 2 is provided with a jack a20 (see fig. 9) for plugging and matching with the plugging portion a 130. Description: the plugging portion a130 and the jack a20 do not need to be tightly connected, but after the plugging portion a130 is inserted into the jack a20, the plugging portion a130 and the jack a20 need to be welded and fixedly connected through a soldering process.

Through the detailed description of the structure of the coil assembly, the coil assembly is designed into an integral module by the processing mode of combining injection molding and inserting, so that the assembly efficiency and the assembly precision of a relay product can be improved well.

Next, the auxiliary contact portion 4 is referred to.

With continued reference to fig. 1 to 3, fig. 7 and fig. 8, based on the above-mentioned direction limitation and the specific structure of the coil assembly 1, in the auxiliary contact portion 4 structure, the auxiliary fixed contact 40 is vertically inserted into the insulating cover 3, and the upper end of the auxiliary fixed contact 40 is fixedly connected with the top wall of the insulating cover 3.

The insulation support 41 is vertically arranged, the upper side of the insulation support 41 is close to the top side of the insulation cover 3, and the lower side of the insulation support 41 is clamped to the clamping groove 102, so that the auxiliary contact 4 is assembled with the coil assembly 1 conveniently and conveniently, and firmly.

The third connecting piece 42 includes a first section 420, a second section 421 and a third section 422 that are sequentially connected, the first section 420 is connected with the auxiliary static contact 40, the second section 421 is embedded in the insulating support 41, the third section 422 is connected with other external devices, and meanwhile, the third section 422 and the plug-in portion B131 are arranged side by side, so that the reliability of the client to the relay plug can be improved.

Further preferably, regarding the third connecting member 42, the first section 420 is in an inverted L shape, the second section 421 is in an L shape, the third section 422 is also in a vertically elongated shape, and the first section 420, the second section 421 and the third section 422 are integrally formed. That is, the third connecting member 42 is a unitary structure made of a conductive metal material.

Still more preferably, the top surface of the third section 422 and the top surface of the plugging portion B131 are located on the same horizontal plane, so as to further improve the reliability of the connection between the client and the relay.

Further preferably, the insulating support 41 is also L-shaped to match the shape of the second section 421; and the insulating support 41 and the third connecting member 42 are formed as an integral structure through an injection molding process. In addition, as shown in fig. 7 and 8, the first section 420 and the third section 422 are both disposed outside the insulating support 41, so that the product is light and easy to process.

Further preferably, the specific structure for connecting the first section 420 and the auxiliary stationary contact 40 is as follows: with continued reference to fig. 7 and 8, the first section 420 is provided with a jack B423 for mating with the upper end of the auxiliary stationary contact 40 in a tight-fitting manner.

Still preferably, in the relay structure according to the present utility model, the number of the auxiliary fixed contacts 40 is two, and correspondingly, the number of the third connecting members 42 is also two; and, the second connecting members 13 are also arranged in two.

Through the detailed description of the structure of the auxiliary contact part, the auxiliary contact part is designed into an integral module by a processing mode of combining injection molding and inserting, so that the assembly efficiency and the assembly precision of a relay product can be improved well.

In conclusion, the high-voltage direct-current relay has the advantages of simple, reasonable and compact structure, small size, easiness in processing and manufacturing, low manufacturing cost and the like, well meets market demands, and expands the application field of the relay.

In the above description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The foregoing description is only of a preferred embodiment of the utility model, which can be practiced in many other ways than as described herein, so that the utility model is not limited to the specific implementations disclosed above. While the foregoing disclosure has been described with reference to certain embodiments, it will be understood by those skilled in the art that various changes and modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model. Any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present utility model without departing from the technical solution of the present utility model still falls within the scope of the technical solution of the present utility model.

Claims

1. A high-voltage direct current relay is characterized in that: comprising the following steps:

The coil assembly (1) comprises a framework (10), a coil (11) wound on the framework (10), a first connecting piece (12) arranged at one end of the framework (10) and used for winding the end head of the coil (11), and a second connecting piece (13) arranged at the other end of the framework (10) and used for being connected with other external devices;

A PCB (2) connected between the first connector (12) and the second connector (13);

an insulating cover (3) which is disposed opposite to the coil block (1) at a distance;

The auxiliary contact part (4) comprises an auxiliary fixed contact (40) fixedly arranged on the insulating cover (3), an insulating supporting part (41) arranged beside the insulating cover (3) and simultaneously clamped with the other end of the framework (10), and a third connecting piece (42) locally buried in the insulating supporting part (41), wherein one end of the third connecting piece (42) is connected with the auxiliary fixed contact (40), and the other end of the third connecting piece (42) is positioned beside the second connecting piece (13) and is also connected with other external devices.

2. The high voltage dc relay of claim 1, wherein: the coil assembly (1) is positioned below the insulating cover (3);

The framework (10) comprises a framework main body (100), an installation part (101) arranged at the upper end of the framework main body (100), and a clamping groove part (102) concavely arranged at the installation part (101);

the second connecting piece (13) is arranged on the mounting part (101); the insulation support portion (41) is arranged vertically, the upper side of the insulation support portion (41) is close to the top side of the insulation cover (3), and the lower side of the insulation support portion (41) is clamped to the clamping groove portion (102).

3. The high voltage dc relay of claim 2, wherein: the second connecting piece (13) comprises a plugging part A (130) which is locally embedded in the mounting part (101) and is plugged and fixed with one side of the PCB (2) at the same time, and a plugging part B (131) which is connected with the plugging part A (130) and is used for being connected with other external devices;

The third connecting piece (42) comprises a first section (420), a second section (421) and a third section (422) which are sequentially connected, the first section (420) is connected with the auxiliary static contact (40), the second section (421) is buried in the insulating supporting part (41), the third section (422) is connected with other external devices, and meanwhile, the third section (422) and the plug-in connection part B (131) are arranged side by side.

4. A high voltage dc relay according to claim 3, characterized in that: the inserting part A (130) is shaped like a Chinese character '匚', the inserting part B (131) is vertically extended in a strip shape, and the inserting part A (130) and the inserting part B (131) are integrally formed;

The first section (420) is in an inverted L shape, the second section (421) is in an L shape, the third section (422) is also in a strip shape extending vertically, and the first section (420), the second section (421) and the third section (422) are integrally formed.

5. The high voltage dc relay of claim 4, wherein: the top surface of the plug-in connection part B (131) and the top surface of the third section part (422) are positioned on the same horizontal plane;

The insulating support portion (41) is L-shaped to match the shape of the second segment portion (421); and the insulating support part (41) and the third connecting piece (42) are formed into an integral structure through an injection molding process.

6. A high voltage dc relay according to claim 3, characterized in that: the framework main body (100), the mounting part (101) and the clamping groove part (102) are integrally injection molded;

The second connecting piece (13) and the framework (10) are formed into an integral structure through an injection molding process;

One side of the PCB (2) is provided with a jack A (20) for being in plug-in fit with the plug-in part A (130);

And the first section part (420) is provided with a jack B (423) for being in close-fit plug-in fit with the auxiliary fixed contact (40).

7. A high voltage dc relay according to claim 3, characterized in that: the number of the auxiliary fixed contacts (40) is two, and correspondingly, the number of the third connecting pieces (42) is also two; and, the second connection piece (13) is also configured in two.

8. The high voltage dc relay of claim 2, wherein: the coil (11) is wound on the framework main body (100), and the first connecting piece (12) is arranged at the lower end of the framework main body (100).

9. The high voltage dc relay of claim 8, wherein: the first connecting piece (12) comprises a plug-in part C (120) fixedly connected with the lower end of the framework main body (100), a receiving part (121) connected with the plug-in part C (120) and used for winding the end head of the coil (11) at the same time, and a plug-in part D (122) also connected with the plug-in part C (120) and fixedly connected with the other side of the PCB (2) at the same time.

10. The high voltage dc relay of claim 9, wherein: the plugging part C (120) is in a U shape which is transversely placed, the bearing part (121) is in a strip shape which extends vertically, and the plugging part D (122) is in a strip shape which extends transversely; the plug-in part C (120), the receiving part (121) and the plug-in part D (122) are integrally formed;

In addition, the lower end of the framework main body (100) is provided with an inserting hole C (103) which is in close fit and inserting fit with the inserting part C (120); and a jack D (21) for being in plug-in fit with the plug-in part D (122) is arranged on the other side of the PCB (2).