Coil pin assembly structure of relay and relay

Abstract

The utility model provides a coil pin assembly structure of relay and relay, including relay housing, the coil rack assembled in the relay housing and the coil pin assembled on the coil rack, the relay housing is cylindrical shell, the coil pin is assembled on the outer edge of the coil rack; the coil pin is provided with a leading-out part and a winding part, the winding part is closer to the inner side than the leading-out part, the winding part is bent and accommodated in an accommodating space between the winding part and the relay shell, a coil is wound on the coil rack, and the leading-out end of the coil is wound on the winding part. In this way, the bent winding part can be better accommodated, and interference between the winding part and the shell and the risk of line pressing are avoided; therefore, the product quality is effectively improved.

Description

Technical Field

[0001] The utility model relates to the field of relays, in particular to a coil pin assembly structure of a relay and a relay. Background Art

[0002] A relay is an electrical control device. When the change of the input quantity (excitation quantity) reaches the specified requirement, it causes the controlled quantity to undergo a predetermined step change in the electrical output circuit. It has an interactive relationship between the control system (also known as the input circuit) and the controlled system (also known as the output circuit). It is usually used in automated control circuits. It is actually an "automatic switch" that uses a small current to control the operation of a large current. Therefore, it plays the role of automatic adjustment, safety protection, and circuit conversion in the circuit.

[0003] In order to save volume, the internal coil of the relay is led out through the coil pin after winding. That is, the coil pin must be connected to the coil and extend out of the shell to connect to the external circuit; the coil pin needs to be bent to facilitate winding and connection with the coil. In some existing relays, the coil pin is generally assembled on the outer edge of the coil frame and close to the shell. The space between the coil pin and the shell is limited; this results in limited space for the bent coil pin, which is easy to interfere with the shell and easy to press the wire, thus affecting product quality. Utility Model Content

[0004] Therefore, in order to solve the above problems, the utility model provides a coil pin assembly structure of a relay and a relay.

[0005] To achieve the above purpose, the technical solution provided by the utility model is as follows:

[0006] A coil pin assembly structure of a relay comprises a relay housing, a coil frame assembled in the relay housing, and a coil pin assembled on the coil frame, wherein the coil pin is assembled on the outer edge of the coil frame; the coil pin has a lead-out portion and a winding portion, wherein the direction toward the center of the relay housing is defined as the inner side, and the direction away from the center of the relay housing is defined as the outer side, the winding portion is closer to the inner side than the lead-out portion, the winding portion is bent and accommodated in an accommodation space between the winding portion and the relay housing, a coil is wound on the coil frame, and the lead-out end of the coil is wound on the winding portion.

[0007] Furthermore, the relay housing is a cylindrical housing or a square column housing.

[0008] Furthermore, the coil pin also includes a plug-in portion, which is fixedly inserted on the coil frame, and the lead-out portion and the winding portion are respectively connected to the plug-in portion.

[0009] Furthermore, the winding portion includes a connecting section and a winding section, the connecting section is connected to the plug-in portion, the winding section is connected to the connecting section, and the lead-out end of the coil is wound around the winding section.

[0010] Furthermore, the connecting section is connected to the plug-in portion and bent to be perpendicular to the plug-in portion, and the winding section is connected to the connecting section and bent to be parallel to the plug-in portion, so that the plug-in portion, the connecting section and the winding section form an "n" shaped structure.

[0011] Furthermore, the winding portion has a toothed side.

[0012] Furthermore, the coil frame has a protruding socket, the socket has a slot, and the plug-in portion is fixedly inserted in the slot of the socket.

[0013] Furthermore, the plug-in portion is provided with barbs, and is fixedly inserted into the slot through the barbs.

[0014] Furthermore, the insertion opening of the slot is provided with an inclined guide wall.

[0015] Furthermore, the number of the sockets is two, and the two sockets are axially symmetrically arranged. The number of the coil pins is also two, and they are respectively assembled on the two sockets.

[0016] A relay at least comprises the coil pin assembly structure of the relay described above.

[0017] The technical solution provided by the utility model has the following beneficial effects:

[0018] 1. By adjusting the position of the winding part of the coil pin, that is, setting the winding part at the inner side, the distance between the winding part and the relay housing becomes larger, which can better accommodate the bent winding part, avoid interference between the winding part and the housing and the risk of wire pressing; thereby effectively improving product quality.

[0019] 2. The winding part has tooth-shaped sides, and when the lead-out end of the coil is wound, it can be stuck between two adjacent teeth and be well limited; it is not easy to fall off.

[0020] 3. The coil frame has a protruding socket, the socket has a slot, and the plug-in portion is fixedly inserted in the slot of the socket. The protruding setting of the socket makes the accommodating space have a larger longitudinal space for accommodating the winding section bent downward. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The figure is a top view of the coil pin assembly structure of the relay in the embodiment;

[0022] Figure 2 Shown Figure 1 A magnified schematic diagram of the middle A area;

[0023] Figure 3 The figure shows the assembly diagram of the coil pin, coil and coil frame in the embodiment. Figure 1 ;

[0024] Figure 4 The figure shows the assembly diagram of the coil pin, coil and coil frame in the embodiment. Figure 2 ;

[0025] Figure 5 The figure shows a schematic diagram of the structure of the coil frame in the embodiment;

[0026] Figure 6 Shown Figure 5 A magnified schematic diagram of the middle B area;

[0027] Figure 7 The figure shows the assembly diagram of the coil pin and the coil in the embodiment. Figure 1 ;

[0028] Figure 8 The figure shows the assembly diagram of the coil pin and the coil in the embodiment. Figure 2 . DETAILED DESCRIPTION

[0029] To further illustrate the various embodiments, the present invention provides drawings. These drawings are part of the disclosure of the present invention, which are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, a person of ordinary skill in the art should be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0030] In the description of the present invention, terms such as "up", "down", "left", "right", "front", "back", etc., and the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification of operation, 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 a limitation of the present invention.

[0031] The utility model is now further described in conjunction with the accompanying drawings and specific implementation methods.

[0032] Embodiment 1

[0033] Reference Figures 1 to 8As shown, the coil pin assembly structure of a relay provided in this embodiment includes a relay housing 10, a coil frame 20 assembled in the relay housing 10, and a coil pin 30 assembled on the coil frame 20. The relay housing 10 is a cylindrical housing, and the coil pin 30 is assembled on the outer edge of the coil frame 20. The coil pin 30 has a lead-out portion 32 and a winding portion 31, and the direction toward the center a of the relay housing 10 is defined as the inside, and the direction away from the center a of the relay housing 10 is defined as the outside. The winding portion 31 is closer to the inside than the lead-out portion 32; in this way, the spacing L1 between the winding portion 31 and the relay housing 10 is larger than the spacing L2 between the lead-out portion 32 and the relay housing 10, that is, a larger accommodating space 101 is formed between the winding portion 31 and the relay housing 10. The winding portion 31 is bent and accommodated in an accommodation space 101 between the winding portion 31 and the relay housing 10 . A coil 40 is wound on the coil frame 20 , and a lead-out end 41 of the coil 40 is wound on the winding portion 31 .

[0034] Through the above arrangement, the bent winding portion 31 can be better accommodated, avoiding interference between the winding portion 31 and the housing (ie, the relay housing 10 ) and the risk of wire compression, thereby effectively improving product quality.

[0035] Specifically, in this embodiment, the coil pin 30 further includes a plug-in portion 33, the plug-in portion 33 is fixedly inserted on the coil frame 20, and the lead-out portion 32 and the winding portion 31 are respectively connected to the plug-in portion 33. Figure 1 and 2 As shown, the lead-out portion 32 is connected to the outer side of the plug-in portion 33 , and the winding portion 31 is connected to the inner side of the plug-in portion 33 .

[0036] The winding portion 31 includes a connecting section 311 and a winding section 312, wherein the connecting section 311 is connected to the plug-in portion 33, and the winding section 312 is connected to the connecting section 311, and the lead-out end 41 of the coil 40 is wound on the winding section 312. At the same time, in order to make the lead-out end 41 of the coil 40 more firmly wound, preferably, the winding portion 31 (specifically the winding section 312) has a tooth-shaped side edge, so that when the lead-out end 41 of the coil 40 is wound, it can be stuck between two adjacent teeth and be well limited; it is not easy to fall off.

[0037] Specifically, the connecting section 311 is connected to the plug-in portion 33 and bent to be perpendicular to the plug-in portion 33, and the winding section 312 is connected to the connecting section 311 and bent to be parallel to the plug-in portion 33, so that the plug-in portion 33, the connecting section 311 and the winding section 312 form an "n"-shaped structure, such as Figure 8As shown, the plug-in portion 33 and the winding section 312 are both arranged vertically, and the connecting section 311 is arranged horizontally. When assembled into the relay housing 10, the horizontal dimension of the coil pin 30 is effectively shortened, so that the winding portion 31 can be better accommodated in the accommodation space 101. Specifically, the lead-out portion 32 is arranged vertically upward to pass through the relay housing 10.

[0038] The above-mentioned structural arrangement of the winding portion 31 is a preferred embodiment of the present invention. Of course, in other embodiments, the structure of the winding portion 31 may not be limited thereto. For example, the winding segment 312 may not be provided with a toothed side structure. After the winding portion 31 is bent, the plug portion 33, the connecting segment 311 and the winding segment 312 may also form other shapes as long as they can be accommodated in the accommodation space 101.

[0039] Specifically, in this embodiment, the coil frame 20 has a protruding socket 21, the socket 21 has a slot 22, and the plug-in portion 33 is fixedly inserted in the slot 22 of the socket 21. The protruding setting of the socket 21 enables the accommodating space 101 to have a larger longitudinal space for accommodating the winding segment 312 bent downward.

[0040] The socket of the slot 22 is provided with an inclined guide wall 23 to facilitate the insertion of the plug-in portion 33. At the same time, the plug-in portion 33 is provided with a barb 331, and is fixedly inserted into the slot 22 through the barb 331, so that the plug-in portion 33 is firmly plugged.

[0041] Specifically, in this embodiment, the number of the sockets 21 is two, and the two sockets 21 are axially symmetrically arranged. The number of the coil pins 30 is also two, and they are respectively assembled on the two sockets 21 to respectively connect the positive and negative ends of the coil 40.

[0042] Furthermore, this embodiment also provides a relay, which at least includes the coil pin assembly structure of the relay described above.

[0043] Embodiment 2

[0044] The coil pin assembly structure of a relay provided in this embodiment is substantially the same as that of the first embodiment, except that: in this embodiment, the relay housing 10 is a square column housing, that is, in the cross section, the side wall of the relay housing 10 is straight. The winding portion 31 is closer to the inside than the lead-out portion 32, so that the connection line between the winding portion 31 and the lead-out portion 32 is inclined to the side wall of the relay housing 10, and the distance from the winding portion 31 to the side wall of the relay housing 10 is also greater than the distance from the lead-out portion 32 to the side wall of the relay housing 10, that is, a larger accommodation space 101 is formed between the winding portion 31 and the relay housing 10. The winding portion 31 is bent and accommodated in the accommodation space 101 between the winding portion 31 and the relay housing 10, and the coil 40 is wound on the coil frame 20, and the lead-out end 41 of the coil 40 is wound on the winding portion 31. The same technical effect is achieved.

[0045] The cylindrical and square shapes of the relay housing 10 are commonly used. Of course, in other embodiments, the shape of the relay housing 10 is not limited thereto. In the case of relay housings 10 of different shapes, if the space between the coil pins and the housing is limited, resulting in the bending of the coil pins interfering with the housing or pressing the wires, the solution proposed in the present invention can be used to solve the problem.

[0046] Although the present invention has been specifically demonstrated and described in conjunction with the preferred embodiments, those skilled in the art should understand that various changes may be made to the present invention in form and detail without departing from the spirit and scope of the present invention as defined in the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. A coil pin assembly structure of a relay, comprising a relay housing, a coil frame assembled in the relay housing, and a coil pin assembled on the coil frame, wherein the coil pin is assembled on the outer edge of the coil frame; characterized in that: The coil pin has a lead-out portion and a winding portion, and the direction toward the center of the relay housing is defined as the inside, and the direction away from the center of the relay housing is defined as the outside. The winding portion is closer to the inside than the lead-out portion, and the winding portion is bent and accommodated in the accommodation space between the winding portion and the relay housing. A coil is wound on the coil frame, and the lead-out end of the coil is wound on the winding portion.

2. The coil pin assembly structure of the relay according to claim 1, characterized in that: The relay housing is a cylindrical housing or a square column housing.

3. The coil pin assembly structure of the relay according to claim 1, characterized in that: The coil pin also includes a plug-in portion, which is fixedly inserted on the coil frame, and the lead-out portion and the winding portion are respectively connected to the plug-in portion.

4. The coil pin assembly structure of the relay according to claim 3, characterized in that: The winding portion comprises a connecting section and a winding section, the connecting section is connected to the plug-in portion, the winding section is connected to the connecting section, and the lead-out end of the coil is wound around the winding section.

5. The coil pin assembly structure of the relay according to claim 4, characterized in that: The connecting section is connected to the plug-in portion and bent to be perpendicular to the plug-in portion, and the winding section is connected to the connecting section and bent to be parallel to the plug-in portion, so that the plug-in portion, the connecting section and the winding section form an "n" shaped structure.

6. The coil pin assembly structure of a relay according to claim 1 or 4, characterized in that: The winding portion has a toothed side.

7. The coil pin assembly structure of the relay according to claim 3, characterized in that: The coil frame has a protruding socket, the socket has a slot, and the plug-in portion is fixedly inserted in the slot of the socket.

8. The coil pin assembly structure of the relay according to claim 7, characterized in that: The plug-in portion is provided with barbs and is fixedly inserted into the slot through the barbs.

9. The coil pin assembly structure of a relay according to claim 7, characterized in that: The insertion opening of the slot is provided with an inclined guide wall.

10. The coil pin assembly structure of a relay according to claim 7, characterized in that: The number of the sockets is two, and the two sockets are arranged axially symmetrically. The number of the coil pins is also two, and they are respectively assembled on the two sockets.

11. A relay, characterized in that: The invention comprises at least the coil pin assembly structure of the relay as described in any one of claims 1-10.

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