Contactor with surge suppression module

Abstract

The contactor with the surge suppression module comprises a base, a coil assembly and the surge suppression module, the coil assembly and the surge suppression module are arranged in the base, the surge suppression module comprises a circuit board and an electronic component arranged on the circuit board, the base is provided with a first slot, an upper opening and a side opening, and the upper opening and the side opening are communicated with the first slot. The upper opening is used for inserting a circuit board, and two sides of the side opening are provided with bosses which are arranged on the base and abut against the edge of the circuit board. Compared with the prior art in which the surge suppression module is fixed on the contactor shell, the surge suppression module is small in occupied space and faster and more convenient to install.

Description

Technical Field

[0001] The utility model relates to the technical field of contactors, in particular to a contactor with a surge suppressor. Background Art

[0002] The surge suppression module is an electronic device that provides safety protection for the contactor. When a spike current or voltage suddenly occurs in the circuit due to external interference, the surge suppression module can conduct and shunt in a very short time, thereby preventing the surge from damaging other devices in the circuit. Most existing surge suppression modules are fixed to the contactor housing by screws, which takes up a large space and is cumbersome to install. Utility Model Content

[0003] Therefore, the technical problem to be solved by the utility model is to overcome the defects of the prior art that the surge suppression module is installed on the contactor housing, resulting in large space occupation and cumbersome installation, thereby providing a contactor with a surge suppressor that occupies a small space and is quick and convenient to install.

[0004] To this end, the utility model provides a contactor with a surge suppression module, including a base, and a coil assembly and a surge suppression module arranged in the base, the surge suppression module including a circuit board, and electronic components arranged on the circuit board, the base is provided with a first slot, and an upper opening and a side opening connected to the first slot, the upper opening is used for inserting the circuit board, and the two sides of the side opening are bosses arranged on the base and abutting against the edges of the circuit board.

[0005] It also includes a base and a shell arranged above the base, the base presses the upper opening, and the shell cover is arranged on the outside of the base and fixedly connected to the base.

[0006] The coil assembly includes a coil and a coil frame, the coil frame has a first conductive member and a second conductive member arranged on the same side of the coil in the width direction and electrically connected to the input terminal and the output terminal on the contactor respectively, the first conductive member and the second conductive member are respectively provided with a first winding post and a second winding post, and the two ends of the coil are respectively connected to the first winding post and the second winding post.

[0007] The surge suppression module is arranged on one side of the coil frame in the length direction, and the coil frame is also provided with a third conductive member located on the other side of the coil frame in the width direction. The third conductive member is provided with a third winding post, and the third winding post is connected to the second winding post through the lead of the coil. The first conductive member and the third conductive member are arranged adjacent to the surge suppression module and are connected to the surge suppression module through corresponding wires.

[0008] The coil frame has a columnar part for the coil lead to be wound thereon, and the end surface of the columnar part is formed with wire grooves and notches for the coil lead to be routed. The coil lead passes through the wire grooves and the notches from each winding column and enters the area where the columnar part is located.

[0009] The first conductive member and the third conductive member each include a winding post and a connection portion respectively arranged at both ends in the length direction thereof. The winding post is arranged adjacent to the middle of the coil frame, and the connection portion extends from one side in the length direction of the coil frame and is electrically connected to the surge suppression module through a wire.

[0010] The wiring portion is provided with a through hole for the wire to pass through.

[0011] The first conductive member and the second conductive member are both provided with contact plates, and the incoming terminal and the outgoing terminal are both connected to the corresponding contact plates through a conductive rod assembly, and the conductive rod assembly includes a conductive rod and a spring connecting the conductive rod and the contact plate.

[0012] Each conductive part is provided with an undercut, and the coil frame is formed with a second slot for inserting the conductive part, and a matching hole provided on the inner wall of the second slot and fixedly matched with the undercut.

[0013] The technical solution of the utility model has the following advantages:

[0014] 1. The contactor, coil assembly and surge suppression module provided by the utility model are all arranged in the base. During assembly, the circuit board of the surge suppression module is inserted into the first slot of the base from the upper opening, and the boss limits the edge of the circuit board. Compared with the method of fixing the surge suppression module on the contactor housing in the prior art, this method occupies less space and is faster and more convenient to install.

[0015] 2. In the contactor provided by the utility model, the base presses the upper opening, and the outer shell is arranged outside the base and fixedly connected to the base, thereby limiting the installation position of the circuit board of the surge suppression module.

[0016] 3. The contactor provided by the utility model has a coil skeleton with a first conductive member and a second conductive member arranged on the same side of the width direction and electrically connected to the input terminal and the output terminal on the contactor respectively. The first conductive member and the second conductive member are respectively provided with a first winding post and a second winding post, and the two ends of the coil are respectively connected to the first winding post and the second winding post; the coil skeleton is also provided with a third conductive member located on the other side of the width direction, and the third conductive member is provided with a third winding post, and the third winding post is connected to the second winding post through the lead of the coil. The first conductive member and the third conductive member are arranged adjacent to the surge suppression module and are connected to the surge suppression module through corresponding wires. The above structure realizes that the two poles of the coil are simultaneously connected to the input / output terminal and the surge suppression module, has a simple structure, saves space, and realizes the surge suppression function under the premise of ensuring the product volume.

[0017] 4. The contactor provided by the utility model has a coil frame with a columnar member for winding the coil lead wire thereon, and the end surface of the columnar member is formed with a wire groove and a notch for routing the coil lead wire. The coil lead wire passes through the wire groove and the notch from each winding column and enters the area where the columnar member is located. The wire groove and the notch facilitate routing and have the advantage of a simple structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 is a cross-sectional view of the contactor;

[0020] Figure 2 is a schematic diagram of the structure of the base;

[0021] Figure 3 It is a schematic diagram of the structure of the coil assembly and the surge suppression module;

[0022] Figure 4 It is a schematic diagram of the exploded structure of the coil assembly;

[0023] Figure 5 A three-dimensional diagram of the coil assembly and the surge suppression module from another angle;

[0024] Figure 6 A perspective view of the contactor with the housing and base removed.

[0025] Explanation of the accompanying drawings: 1. base; 2. coil assembly; 3. surge suppression module; 4. circuit board; 5. electronic components; 6. first slot; 7. upper opening; 8. side opening; 9. boss; 10. base; 11. housing; 12. coil; 13. coil skeleton; 14. incoming terminal; 15. outgoing terminal; 16. first conductive member; 17. second conductive member; 18. third conductive member; 19. columnar member; 20. wiring portion; 21. first winding post; 22. second winding post; 23. third winding post; 24. wire groove; 25. notch; 26. perforation; 27. contact plate; 28. conductive rod; 29. ​​spring; 30. undercut; 31. second slot; 32. matching hole; 33. buckle; 34. slot. DETAILED DESCRIPTION

[0026] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0030] Example

[0031] This embodiment provides a contactor with a surge suppression module, such as Figure 1 As shown, it includes a base 1, a coil assembly 2, a surge suppression module 3, a base 10 and a housing 11.

[0032] Base 1, such as Figure 1 and Figure 2 As shown, it is provided with a first slot 6, and an upper opening 7 and a side opening 8 connected to the first slot 6. The upper opening 7 is used for inserting the circuit board 4 of the surge suppression module 3, and the side opening 8 is used for extending the electronic components 5 of the surge suppression module 3. The two sides of the side opening 8 are bosses 9 arranged on the base 1 and abutting against the edge of the circuit board 4. A base 10 and a shell 11 are arranged above the base 1. The base 10 presses the upper opening 7, and the shell 11 is covered on the outside of the base 10 and fixedly connected to the base 1. In this embodiment, the shell 11 is assembled with the base 1 through a snap-fit ​​structure, as shown in FIG. Figure 1 As shown, the buckle structure includes a buckle 33 provided on the outer wall of the base 1, and a slot 34 provided on the housing 11 and adapted to engage with the buckle. It should be noted that the electronic component 5 is fixed on the circuit board 4 by means of a patch.

[0033] The surge suppression module 3 is disposed in the base 1 , and includes a circuit board 4 and electronic components 5 disposed on the circuit board 4 .

[0034] The coil assembly 2 is arranged in the base 1, and includes a coil 12 and a coil frame 13. Figure 3 , Figure 4 and Figure 5 As shown, the coil skeleton 13 has a first conductive member 16 and a second conductive member 17 which are arranged on the same side in the width direction and are electrically connected to the input terminal 14 and the output terminal 15 on the contactor respectively. The first conductive member 16 and the second conductive member 17 are respectively provided with a first winding post 21 and a second winding post 22. The two ends of the coil 12 are respectively connected to the first winding post 21 and the second winding post 22. The surge suppression module 3 is arranged on one side in the length direction of the coil skeleton 13. The coil skeleton 13 is also provided with a third conductive member 18 on the other side in the width direction. The third conductive member 18 is provided with a third winding post 23. The third winding post 23 is connected to the second winding post 22 through the lead of the coil 12. The first conductive member 16 and the third conductive member 18 are arranged adjacent to the surge suppression module 3 and are connected to the surge suppression module 3 through corresponding wires. Figure 5As shown, the coil frame 13 has a columnar part 19 for the lead wire of the coil 12 to be wound thereon, and the end surface of the columnar part 19 is formed with a wire groove 24 and a notch 25 for the lead wire of the coil 12 to be routed. The lead wire of the coil 12 passes through the wire groove 24 and the notch 25 from each winding post and enters the area where the columnar part 19 is located. It should be noted that the winding method of the coil in this embodiment is as follows: the starting point of the coil is the first winding post 21, and the lead wire enters the winding machine to start winding after being wound on the first winding post 21. After the winding of the columnar part 19 is completed, the lead wire enters the second winding post 22 for winding, and then is led out from the second winding post 22 and wound around the columnar part 19 for half a circle, and then is wound around the third winding post 23, and finally the three winding posts are soldered.

[0035] In this embodiment, the first conductive member 16 and the third conductive member 18 each include a winding post and a connection portion 20 disposed at both ends of the length direction thereof. The winding post is disposed adjacent to the middle of the coil frame 13. The connection portion 20 extends from one side of the coil frame 13 in the length direction and is electrically connected to the surge suppression module 3 through a wire. The connection portion 20 is provided with a through hole 26 for the wire to pass through. Figure 6 As shown, the first conductive member 16 and the second conductive member 17 are both provided with a contact plate 27, and the incoming terminal 14 and the outgoing terminal 15 are both connected to the corresponding contact plate 27 through a conductive rod assembly, and the conductive rod assembly includes a conductive rod 28 and a spring 29 connecting the conductive rod 28 and the contact plate 27. Figure 4 As shown, each conductive member is provided with an undercut 30 , the coil frame 13 is formed with a second slot 31 for inserting the conductive member, and a matching hole 32 provided on the inner wall of the second slot 31 and fixedly matched with the undercut 30 .

[0036] In the contactor provided by the utility model, the coil assembly 2 and the surge suppression module 3 are all arranged in the base 1. During assembly, the circuit board 4 of the surge suppression module 3 is inserted into the first slot 6 of the base 1 from the upper opening 7, and the boss 9 limits the edge of the circuit board 4. Compared with the method of fixing the surge suppression module on the contactor housing in the prior art, this method occupies less space and is faster and more convenient to install.

[0037] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A contactor with a surge suppression module, characterized in that: The invention comprises a base (1), and a coil assembly (2) and a surge suppression module (3) arranged in the base (1); the surge suppression module (3) comprises a circuit board (4), and an electronic component (5) arranged on the circuit board (4); the base (1) is provided with a first slot (6), and an upper opening (7) and a side opening (8) connected to the first slot (6); the upper opening (7) is used for inserting the circuit board (4); and the two sides of the side opening (8) are bosses (9) arranged on the base (1) and abutting against the edge of the circuit board (4).

2. The contactor with a surge suppression module according to claim 1, characterized in that: It also comprises a base (10) and a shell (11) arranged above the base (1), wherein the base (10) presses the upper opening (7), and the shell (11) is arranged on the outside of the base (10) and is fixedly connected to the base (1).

3. The contactor with a surge suppression module according to claim 1 or 2, characterized in that: The coil assembly (2) comprises a coil (12) and a coil frame (13); the coil frame (13) comprises a first conductive member (16) and a second conductive member (17) which are arranged on the same side in the width direction thereof and are respectively electrically connected to an incoming terminal (14) and an outgoing terminal (15) on a contactor; the first conductive member (16) and the second conductive member (17) are respectively provided with a first winding post (21) and a second winding post (22); and the two ends of the coil (12) are respectively connected to the first winding post (21) and the second winding post (22).

4. The contactor with a surge suppression module according to claim 3, characterized in that: The surge suppression module (3) is arranged on one side of the coil frame (13) in the length direction, and the coil frame (13) is also provided with a third conductive member (18) located on the other side of the coil frame (13) in the width direction. The third conductive member (18) is provided with a third winding post (23), and the third winding post (23) is connected to the second winding post (22) through the lead of the coil (12). The first conductive member (16) and the third conductive member (18) are arranged adjacent to the surge suppression module (3) and are connected to the surge suppression module (3) through corresponding wires.

5. The contactor with a surge suppression module according to claim 4, characterized in that: The coil frame (13) has a columnar part (19) on which the lead wire of the coil (12) is wound, and the end surface of the columnar part (19) is formed with a wire groove (24) and a notch (25) for the lead wire of the coil (12) to be routed, and the lead wire of the coil (12) passes through the wire groove (24) and the notch (25) from each of the winding columns and enters the area where the columnar part (19) is located.

6. The contactor with a surge suppression module according to claim 4 or 5, characterized in that: The first conductive member (16) and the third conductive member (18) both include winding posts and connection portions (20) disposed at both ends of the length direction thereof; the winding posts are disposed adjacent to the middle of the coil frame (13); the connection portion (20) extends from one side of the coil frame (13) in the length direction and is electrically connected to the surge suppression module (3) via a wire.

7. The contactor with a surge suppression module according to claim 6, characterized in that: The wiring portion (20) is provided with a through hole (26) for the wire to pass through.

8. The contactor with a surge suppression module according to claim 3, characterized in that: The first conductive member (16) and the second conductive member (17) are both provided with a contact plate (27); the incoming terminal (14) and the outgoing terminal (15) are both connected to the corresponding contact plate (27) via a conductive rod assembly; the conductive rod assembly comprises a conductive rod (28) and a spring (29) connecting the conductive rod (28) and the contact plate (27).

9. The contactor with a surge suppression module according to claim 4, characterized in that: Each conductive part is provided with an undercut (30), and the coil frame (13) is formed with a second slot (31) for inserting the conductive part, and a matching hole (32) provided on the inner wall of the second slot (31) and fixedly matched with the undercut (30).

Images