Pin clamping spring mechanism and relay socket

Abstract

The utility model discloses a pin clip spring mechanism and a relay socket, comprising an installation part and a clamping part which is connected with the installation part and is used for plugging with a product pin, the clamping part comprises a plurality of elastic clamping petals which are arranged on the installation part in a central symmetry manner, and the elastic clamping petals cooperate with each other to form an encircling type elastic clamping structure. According to the pin clamping spring mechanism, the clamping part is of the surrounding type elastic clamping structure formed by the elastic clamping petals which are arranged in a central symmetry mode and matched with one another, and when the pins of the product are inserted into the insertion space of the pin clamping spring mechanism, the pins can be inserted into the insertion space of the pin clamping spring mechanism; the elastic clamping petals evenly and elastically abut against the peripheral face positions of the product pins so as to clamp and fix the product pins and stably clamp the product pins at the center position of the inserting space, and therefore when the pin clamping spring mechanism is installed on a PCB, installation can be conducted at any angle of 360 degrees in the circumferential direction, and the pin clamping spring mechanism can be installed on the PCB at any angle of 360 degrees. And the installation efficiency of the pin clamping spring mechanism on the PCB can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of relay sockets, in particular to a pin clamp spring mechanism and a relay socket. Background Art

[0002] As attached Figure 4 To Attachment Figure 6 As shown, an existing pin clamp spring mechanism is applied to a relay socket with a built-in PCB board, comprising a hollow cylinder 1', the upper end of the hollow cylinder 1' forms a pin plug-in end with a round hole, the lower end forms a PCB board fixing end for fixed connection with the PCB board, and an elastic pressing portion 2' is formed in the pin plug-in end, and the elastic pressing portion 2' cooperates with the inner wall of the round hole to form an elastic clamping structure for clamping the product pin (cylindrical). When the product pin is inserted into the pin plug-in end of the pin clamp spring mechanism, the product pin will not be at the center of the round hole, and when product pins of different thicknesses are inserted, the position of the product pin in the round hole will be offset accordingly. However, a product usually has more than one pin. For example, a relay may have 6 to 8 or even more pins, and each pin corresponds to a pin clamp spring mechanism. This places high demands on the consistency of the installation angles of the pin clamp spring mechanisms on the PCB board (especially the action directions of the elastic pressing parts 2'). The pin clamp spring mechanisms cannot be installed at any 360° angle in the circumferential direction. If the elastic pressing action directions of the elastic pressing parts 2' are inconsistent, when the relay is installed on the relay socket, to a certain extent, the corresponding pin of the relay may be squeezed and deformed and skewed, or the pin may not be stably plugged into and matched with the corresponding pin clamp spring mechanism. Utility Model Content

[0003] In view of the shortcomings of the prior art, the utility model provides a pin clamp spring mechanism which has no installation angle requirements and can be installed at any angle of 360° at the installation location, which is beneficial to improving the installation efficiency of the pin clamp spring mechanism, and the product pins can be stably clamped and fixed at the center position of the embracing elastic clamping structure.

[0004] In order to achieve the above object, the utility model is realized by the following technical solutions:

[0005] A pin clamp spring mechanism comprises a mounting portion for fixedly connecting to a PCB board and a clamping portion connected to the mounting portion and for plugging into a product pin, wherein the clamping portion comprises a plurality of elastic clamping petals arranged centrally and symmetrically on the mounting portion, wherein the elastic clamping petals cooperate with each other to form an embracing elastic clamping structure, and an insertion space for inserting the product pin is formed at the central position of the embracing elastic clamping structure.

[0006] Furthermore, the clamping portion is composed of four elastic clamping petals which are centrally symmetrically arranged on the mounting portion.

[0007] Furthermore, the top ends of the elastic clamping petals are gathered toward the center so that the encircling elastic clamping structure forms a narrowed shape with a small top and a large bottom.

[0008] Furthermore, the inner side surface of the elastic clamping flap forms a clamping action surface for elastically pressing the cylindrical surface of the product pin, and the clamping action surface is an arc surface structure adapted to the cylindrical surface of the product pin.

[0009] Furthermore, the mounting portion and the clamping portion are made of a metal material having conductive properties.

[0010] Furthermore, the mounting portion is a solid structure.

[0011] Furthermore, the mounting portion includes a base and an insertion rod arranged at the bottom of the base for plugging into and mating with a socket on a PCB board, and the bottom of the base forms a step surface for pressing against the surface of the PCB board to form a supporting effect, and the insertion rod is welded and fixed to the socket of the PCB board.

[0012] Based on the same inventive concept, the utility model also provides a relay socket, including a relay socket body and any of the above-mentioned pin clamp spring mechanisms, wherein the PCB board is built into the relay socket body, and the product pins are relay pins.

[0013] The above technical solution has the following advantages or beneficial effects:

[0014] In the pin clamping spring mechanism and relay socket described in the utility model, the clamping part of the pin clamping spring mechanism is an embracing elastic clamping structure formed by a plurality of elastic clamping petals arranged in a central symmetrical manner and cooperating with each other. When the product pin is inserted into its plug-in space, each elastic clamping petal elastically presses against the circumferential position of the product pin evenly and thus produces a clamping and fixing effect on the product pin, and no matter how thick the product pin is, it will be stably clamped at the center position of the plug-in space. In this way, when the pin clamping spring mechanism is installed on the PCB board, it can be installed at any angle of 360° in the circumferential direction without specific orientation requirements, which is conducive to improving the installation efficiency of the pin clamping spring mechanism on the PCB board. Furthermore, since the product pins are clamped and fixed at the center of the plug-in space, when multiple pin clamp spring mechanisms are needed to simultaneously fix multiple pins of the product, it is only necessary to ensure that the axis of each product pin corresponds to the center of the plug-in space of each pin clamp spring mechanism, so that each product pin can be stably and well clamped and fixed by each corresponding pin clamp spring mechanism. Even if the thickness of the product pins changes, as long as the axis of each product pin remains corresponding to the center of the plug-in space of each corresponding pin clamp spring mechanism, it can still be applied, which is conducive to improving its universal adaptability to product pins of different thicknesses. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view of the pin clamp spring mechanism of the embodiment of the utility model.

[0016] Figure 2 It is a top view of the pin clamp spring mechanism of the embodiment of the utility model.

[0017] Figure 3 It is a schematic diagram of the assembly structure of the pin clamp spring mechanism and the PCB board of the embodiment of the utility model.

[0018] Figure 4 It is a top view of the pin clamp spring mechanism of the prior art.

[0019] Figure 5 yes Figure 4 AA section view in.

[0020] Figure 6 It is a top view of the plug-in matching structure of the pin clamp spring mechanism and the product pin in the prior art.

[0021] Description of labels:

[0022] 1. Mounting portion, 2. Clamping portion, 3. PCB board, 11. Base, 12. Insertion rod, 21. Elastic clamping flap, 22. Insertion space, 111. Step surface, 211. Clamping action surface. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0024] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying 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 direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0025] Please refer to the attached Figure 1 To Attachment Figure 3An embodiment of the utility model provides a pin clamp spring mechanism, including a mounting portion 1 for fixedly connecting to a PCB board 3 and a clamping portion 2 connected to the mounting portion 1 and for plugging with a product pin, the clamping portion 2 includes a plurality of elastic clamping petals 21 centrally symmetrically arranged on the mounting portion 1, the elastic clamping petals 21 cooperate with each other to form an embracing elastic clamping structure, and an insertion space 22 for inserting the product pin is formed at the center position of the embracing elastic clamping structure. It can be understood that, in the present embodiment, the clamping portion 2 of the pin clamping spring mechanism is an embracing elastic clamping structure formed by a plurality of elastic clamping petals 21 arranged in a central symmetrical manner and cooperating with each other. When the product pin (cylindrical) is inserted into its plug-in space 22, each elastic clamping petal 21 elastically presses evenly against the circumferential position of the product pin, thereby clamping and fixing the product pin. Regardless of the thickness of the product pin, it will be stably clamped at the center position of the plug-in space 22. In this way, when the pin clamping spring mechanism is installed on the PCB board 3, it can be installed at any angle of 360° in the circumferential direction without specific orientation requirements, which is conducive to improving the installation efficiency of the pin clamping spring mechanism on the PCB board 3. Furthermore, since the product pins are clamped and fixed at the center position of the plug-in space 22, when multiple pin clamp spring mechanisms are needed to simultaneously fix multiple pins of the product (for example, a relay with multiple pins), it is only necessary to ensure that the axis of each product pin corresponds to the center position of the plug-in space 22 of each pin clamp spring mechanism, so that each product pin can be stably and well clamped and fixed by each corresponding pin clamp spring mechanism. Even if the thickness of the product pins changes, as long as the axis of each product pin corresponds to the center of the plug-in space 22 of each corresponding pin clamp spring mechanism, it can still be applied, which is beneficial to improve its universal adaptability to product pins of different thicknesses.

[0026] Please refer to the attached Figure 1 To Attachment Figure 3 In one preferred embodiment, the clamping portion 2 is composed of four elastic clamping petals 21 arranged symmetrically on the mounting portion 1. However, those skilled in the art should understand that in other embodiments, the clamping portion 2 may also be composed of two or three elastic clamping petals 21 arranged symmetrically, or five, six or even more elastic clamping petals 21 arranged symmetrically, and is not limited to the specific implementation manner disclosed in this embodiment.

[0027] Please refer to the attached Figure 1 To Attachment Figure 3In one preferred embodiment, the top of each elastic clamping petal 21 is gathered toward the center so that the embracing elastic clamping structure forms a narrow opening with a small top and a large bottom. In the production stage, the size of the narrow opening structure of the clamping part 2 can be configured according to the plugging and unplugging force value. For product pins of the same thickness and size, the smaller the narrow opening, the greater the plugging and unplugging force of the product pins. Conversely, the larger the narrow opening, the smaller the plugging and unplugging force of the product pins.

[0028] Please refer to the attached Figure 1 To Attachment Figure 3 In one preferred embodiment, the inner side surface of the elastic clamping petal 21 forms a clamping action surface 211 for elastically pressing the cylindrical surface of the product pin, and the clamping action surface 211 is an arc surface structure adapted to the cylindrical surface of the product pin. Through the clamping action surface 211 with an arc surface structure, the elastic clamping petal 21 can be more closely elastically pressed against the peripheral surface of the product pin, and the elastic clamping petals 21 cooperate with each other to clamp and fix the product pin more stably, which is conducive to improving the connection stability between the pin clamp spring mechanism and the product pin.

[0029] Please refer to the attached Figure 1 To Attachment Figure 3 In one preferred embodiment, the mounting portion 1 and the clamping portion 2 are made of a metal material having conductive properties.

[0030] Please refer to the attached Figure 1 To Attachment Figure 3 In one preferred embodiment, the mounting portion 1 is a solid structure, which can effectively increase the overall strength of the pin clamp spring mechanism, making it less likely to bend and deform during assembly and transportation. Preferably, the mounting portion 1 includes a base 11 and an insertion rod 12 provided at the bottom of the base 11 for plugging and mating with the socket on the PCB board 3, and the bottom of the base 11 forms a step surface 111 for pressing against the surface of the PCB board 3 to form a supporting effect, and the insertion rod 12 is welded and fixed to the socket of the PCB board 3. It can be understood that in this embodiment, since the step surface 111 for pressing against the surface of the PCB board 3 is provided on the mounting portion 1 of the pin clamp spring mechanism, the support effect of the step surface 111 can effectively improve the connection stability between the pin clamp spring mechanism and the PCB board, ensure the verticality of the connection between the pin clamp spring mechanism and the PCB board 3, and make the welding position more secure.

[0031] Please refer to the attached Figure 1 To Attachment Figure 3 An embodiment of the utility model further provides a relay socket, comprising a relay body (not shown) and a pin clamp spring mechanism of any of the above embodiments, wherein the PCB board 3 is built into the relay socket body, and the product pins are relay pins.

[0032] As described above, the embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents. These modifications or replacements do not make the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model. Therefore, all other embodiments obtained by ordinary technicians in the field without making creative work belong to the protection scope of the utility model.

Claims

1. A pin clamp spring mechanism, characterized in that: The invention comprises a mounting portion (1) for fixedly connecting to a PCB board (3) and a clamping portion (2) connected to the mounting portion (1) and for plugging into a product pin, wherein the clamping portion (2) comprises a plurality of elastic clamping petals (21) arranged in a centrally symmetrical manner on the mounting portion (1), wherein the elastic clamping petals (21) cooperate with each other to form an embracing elastic clamping structure, and an insertion space (22) for inserting a product pin is formed at the center of the embracing elastic clamping structure.

2. The pin clamp spring mechanism according to claim 1, characterized in that: The clamping portion (2) is composed of four elastic clamping petals (21) which are centrally symmetrically arranged on the mounting portion (1).

3. The pin clamp spring mechanism according to claim 2, characterized in that: The top ends of the elastic clamping petals (21) are gathered toward the center so that the encircling elastic clamping structure forms a narrow opening shape with a small top and a large bottom.

4. The pin clamp spring mechanism according to claim 1, characterized in that: The inner side surface of the elastic clamping flap (21) forms a clamping action surface (211) for elastically pressing the cylindrical surface of the product pin, and the clamping action surface (211) is an arc surface structure adapted to the cylindrical surface of the product pin.

5. The pin clamp spring mechanism according to claim 1, characterized in that: The mounting portion (1) and the clamping portion (2) are made of a metal material having conductive properties.

6. The pin clamp spring mechanism according to any one of claims 1 to 5, characterized in that: The mounting portion (1) is a solid structure.

7. The pin clamp spring mechanism according to claim 6, characterized in that: The mounting portion (1) comprises a base (11) and an insertion rod (12) arranged at the bottom of the base (11) for plugging and matching with a socket on a PCB board (3), and the bottom of the base (11) is formed with a step surface (111) for pressing against the surface of the PCB board (3) to form a supporting effect, and the insertion rod (12) is fixed to the socket of the PCB board (3) by welding.

8. A relay socket, characterized in that: It comprises a relay body and the pin clamp spring mechanism as claimed in any one of claims 1 to 7, wherein the PCB board (3) is built into the relay socket body, and the product pins are relay pins.

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