Multipurpose insertion spring

Abstract

The utility model relates to the technical field of circuit devices, in particular to a multipurpose plug spring which comprises a plug spring body, a leading-in angle is arranged on the outer side of the front end of the plug spring body, and a limiting table is arranged on the outer side of the middle section. A first groove section, a second groove section, a third groove section and a fourth groove section are sequentially arranged on the center line of the insertion spring body and divide the upper portion of the insertion spring body into symmetrical insertion parts, and a guide-in opening and a guide-out opening are formed in the upper end and the lower end of the first groove section respectively. The lower part of the plug spring body is provided with a power connection part. The insertion spring is simple in structure and low in manufacturing cost; the plug has the functions of a socket and a plug at the same time, the two plug springs can be mutually plugged for conduction, and the application range is wider.

Description

Technical Field

[0001] The utility model belongs to the technical field of circuit devices, and particularly relates to a multi-purpose plug spring. Background Art

[0002] The plug piece and the plug spring are important conductive terminal components in circuit devices, mainly playing the role of connecting circuits. They can be connected by setting pin needles or wire bonding structures, and are very convenient to use. Therefore, they are widely used in circuit connections, such as various PCB circuit boards, power circuits, communication circuits, and control circuits.

[0003] In the prior art, the plug piece is usually sheet-shaped, which is equivalent to a plug; while the structure of the plug spring is relatively complex, and the spring performance can only be achieved by bending and deforming elastic metal materials in various ways, which is equivalent to a socket. The existing plug springs have problems such as complex design structures, complex manufacturing molds and processes, and high costs. And when in use, the plug spring and the plug piece must be paired and used together to achieve the function of mutual insertion and conduction, and the use has limitations.

[0004] Therefore, in view of the above technical problems, the utility model provides a multi-purpose plug spring, which has a simple structure and simultaneously has the functions of a socket and a plug, and can conduct electricity by mutually inserting two plug springs to solve the above problems or one of them. Content of the Utility Model

[0005] In view of the above problems existing in the prior art, the utility model provides a multi-purpose plug spring, including:

[0006] A plug spring body made of a conductive elastic metal material;

[0007] An introduction angle is arranged on the outer side of the front end of the plug spring body, and a limiting table is arranged on the outer side of the middle section of the plug spring body;

[0008] A continuous first groove section, a second groove section, a third groove section, and a fourth groove section are sequentially arranged on the center line of the plug spring body, and the first groove section, the second groove section, the third groove section, and the fourth groove section divide the upper part of the plug spring body into symmetric plugging parts;

[0009] The first groove section is located at the front end of the plug spring body, and an inlet and an outlet are respectively formed at the upper and lower ends of the first groove section. Both the inlet and the outlet are provided with rounded corners, and the fourth groove section is formed as a longitudinal elastic force adjustment groove;

[0010] The groove pitch of the first groove section is smaller than that of the second groove section, the groove pitch of the second groove section is smaller than that of the third groove section, and the groove pitch of the fourth groove section is smaller than or equal to that of the first groove section;

[0011] A power connection part is arranged at the lower part of the plug spring body.

[0012] Optionally, a fifth groove section is further provided on the center line of the plug spring body. The fifth groove section is located on the third groove section. The groove pitch of the fifth groove section is greater than that of the third groove section. The fifth groove section is formed as a lateral elastic force adjustment groove.

[0013] Optionally, the lead-out port and the second groove section are in arc transition, and the second groove section and the third groove section are in arc transition.

[0014] Optionally, the lower part of the plug spring body is formed as a current collection area, and the plugging part is formed as a current dispersion area.

[0015] Optionally, the plug spring body is a sheet body, and the thickness of the plug spring body is 0.1-0.2 mm smaller than the groove pitch of the first groove section.

[0016] Optionally, the thickness of the plug spring body is 0.4±0.01 mm or 0.5±0.01 mm or 0.6±0.01 mm or 0.8±0.01 mm.

[0017] Optionally, when the two plug spring bodies are inserted into each other, the groove surface of the first groove section is formed as a conductive contact surface.

[0018] Optionally, an extension part is provided at the lower part of the plug spring body, and the top surface of the extension part is not higher than the limiting platform.

[0019] Optionally, the extension part is perpendicular to the plug spring body, and the power connection part can also be arranged on the extension part.

[0020] Optionally, the power connection part is formed as a pin or a wire clamp.

[0021] The technical solution of the present utility model has the following advantages or beneficial effects:

[0022] The multi-purpose plug spring provided by the present utility model includes a plug spring body. An introduction angle is provided on the outer side of the front end of the plug spring body, and a limiting platform is provided on the outer side of the middle section. A first groove section, a second groove section, a third groove section and a fourth groove section are sequentially arranged on the center line of the plug spring body to divide the upper part of the plug spring body into symmetric plugging parts. The upper and lower ends of the first groove section respectively form a lead-in port and a lead-out port. A power connection part is provided at the lower part of the plug spring body. The structure of the plug spring is simple and the manufacturing cost is relatively low; and it has both a socket function and a plug function at the same time, and two plug springs can be inserted into each other for conduction, so the application range is wider. Description of the Drawings

[0023] Referring to the accompanying drawings, the embodiments of the present utility model are more fully described. However, the accompanying drawings are only for illustration and explanation, and do not constitute a limitation on the scope of the present utility model.

[0024] Figure 1 Schematic diagram of an insertion spring with a wire bonding structure in the prior art;

[0025] Figure 2 Schematic diagram of an insertion piece in the prior art;

[0026] Figure 3 Schematic diagram of the structure of a multi - purpose insertion spring;

[0027] Figure 4 Schematic diagram of the slot pitch of a multi - purpose insertion spring;

[0028] Figure 5 Schematic diagram of the current - guiding contact surface of a multi - purpose insertion spring;

[0029] Figure 6 Schematic diagram of the insertion of a multi - purpose insertion spring and an existing insertion piece;

[0030] Figure 7 Schematic diagram of the insertion of a multi - purpose insertion spring and an existing insertion spring;

[0031] Figure 8 Schematic diagram of the insertion of two multi - purpose insertion springs;

[0032] Figure 9 The first schematic diagram of the pin arrangement after the extension part is set on the multi - purpose insertion spring;

[0033] Figure 10 Another schematic diagram of the pin arrangement after the extension part is set on the multi - purpose insertion spring;

[0034] Figure 11 Another schematic diagram of the pin arrangement after the extension part is set on the multi - purpose insertion spring.

[0035] Illustration description:

[0036] 1. Existing insertion spring; 2. Existing insertion piece; 3. Insertion spring body; 4. Introduction angle; 5. Limiting platform; 6. First slot section; 7. Second slot section; 8. Third slot section; 9. Fourth slot section; 10. Insertion part; 11. Introduction port; 12. Outlet port; 13. Power - connection part; 14. Fifth slot section; 15. Pin; 16. Wire bonding clip; 17. Extension part. Detailed implementation mode

[0037] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many other different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure content of the present invention more thorough and comprehensive.

[0038] It should be noted that when an element is referred to as "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0039] In the description of the present utility model, unless otherwise defined, all technical and scientific terms used in the present utility model have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the description of the present utility model in this specification are only for the purpose of describing specific embodiments, and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0040] In the description of the present utility model, technical terms such as "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity, specific order or primary-secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "a plurality" is more than two, unless otherwise specifically defined.

[0041] As Figure 1 shown is a plug spring with a wire bonding structure in the prior art, which forms a socket function and is used for mating with a flat plug; the overall structure of the existing plug spring 1 is relatively complex, the manufacturing process is also relatively complex, and the manufacturing cost is relatively high. Figure 2 shown is a plug in the prior art with a pin structure. The existing plug 2 is usually a flat structure and forms a plug function. The plug with a pin structure is mainly used for circuit connection on a PCB circuit board; the existing plug spring 1 must be used in combination with the existing plug 2, resulting in limited application scope of the plug spring.

[0042] As Figures 3 - 11As shown, the multi-purpose plug spring of the present utility model includes a plug spring body 3. An introduction angle 4 is provided on the outer side of the front end of the plug spring body 3, and a limiting platform 5 is provided on the outer side of the middle section. Along the center line of the plug spring body 3, a first groove section 6, a second groove section 7, a third groove section 8, and a fourth groove section 9 are sequentially arranged. The first groove section 6, the second groove section 7, the third groove section 8, and the fourth groove section 9 divide the upper part of the plug spring body 3 into symmetric plugging parts 10. The upper and lower ends of the first groove section 6 respectively form an inlet 11 and an outlet 12. A power connection part 13 is provided at the lower part of the plug spring body 3. The overall structure of the plug spring is relatively simple, and the manufacturing cost is significantly reduced. Moreover, two plug springs can be plugged into each other for connection, and the application range is relatively wide. Specifically, the plug spring body 3 is a sheet-like body, which is made of conductive elastic metal material. The thickness T of the plug spring body 3 can adapt to standard size specifications. For example, the thickness T of the plug spring body 3 is 0.4±0.01 mm or 0.5±0.01 mm or 0.6±0.01 mm or 0.8±0.01 mm, so that the plug spring can be adapted to the existing plug spring 1. The introduction angles 4 are symmetrically provided on the outer side of the front end of the plug spring body 3. The introduction angles 4 are rounded corners. The setting of the introduction angles 4 facilitates the blind insertion and introduction function when the plug spring functions as a plug and is plugged into other existing plug springs 1, can be smoothly inserted, and improves the convenience of plugging. The application range of the plug spring can be wider. In some embodiments, the introduction angles 4 can also be bevel angles, which are not limited herein.

[0043] Furthermore, in this embodiment, the limiting platforms 5 are symmetrically provided on the outer side of the middle section of the plug spring body 3. The limiting platforms 5 are used to limit the plugging depth of the plug spring when the plug spring functions as a plug and is plugged into the existing plug spring 1, so as to prevent the warping of the plug spring body 3 caused by over-plugging during plugging, thereby avoiding poor contact. In this embodiment, the continuous first groove section 6, the second groove section 7, the third groove section 8, and the fourth groove section 9 are sequentially arranged along the center line of the plug spring body 3. The first groove section 6, the second groove section 7, the third groove section 8, and the fourth groove section 9 divide the upper part of the plug spring body 3 into symmetric plugging parts 10. The plugging parts 10 can be inserted into the existing plug spring 1, or the two plugging parts 10 can be docked. Specifically, the first groove section 6 is located at the front end of the plug spring body 3. The upper and lower ends of the first groove section 6 respectively form an inlet 11 and an outlet 12. Both the inlet 11 and the outlet 12 are rounded corner settings. The setting of the inlet 11 facilitates the blind insertion and introduction function when the existing plug piece 2 is inserted into the plug spring. The outlet 12 and the second groove section 7 are in arc transition, and the second groove section 7 and the third groove section 8 are in arc transition, which can prevent burrs. The fourth groove section 9 is formed as a longitudinal elastic force adjustment groove, which can adjust the clamping force between the two plugging parts 10. More specifically, as Figure 4As shown, the slot pitch W1 of the first slot segment 6 is smaller than the slot pitch W2 of the second slot segment 7, the slot pitch W2 of the second slot segment 7 is smaller than the slot pitch W3 of the third slot segment 8, and the slot pitch W4 of the fourth slot segment 9 is smaller than or equal to the slot pitch W1 of the first slot segment 6. The advantage of providing various slot segments is that during manufacturing, while ensuring the elastic properties of the plug spring, relatively more material is saved. In particular, the provision of the inlet 11 and outlet 12 facilitates smooth insertion and removal of the two plug springs, or when mating with the existing plug blade 2. The provision of the third slot segment 8 enhances the elasticity of the plug spring.

[0044] Furthermore, the slot pitch of the first slot section 6 of this embodiment is 0.1-0.2 mm greater than the thickness of the plug spring body 3 or the thickness of the existing insert 2. This ensures good contact while facilitating smooth insertion and removal between the two plug springs, or between the existing insert 2 and the plug spring. If the plug spring's width or thickness varies, making insertion of the insert difficult or requiring excessive force, adjustment can be made using the fourth slot section 9. This adjustment can be achieved by squeezing or prying apart the two plug-in sections 10, or by selecting a plug spring with a different depth of the fourth slot section 9. In some embodiments, the fourth slot section 9 may be omitted depending on design requirements. It should be noted that to ensure the plug spring conforms to standard specifications, the outer width W6 of the two plug-in sections 10 can be set to 2.8 mm / 4.8 mm / 5.2 mm / 6.3 mm, and the thickness T of the plug spring can be set to 0.4 mm / 0.5 mm / 0.6 mm / 0.8 mm. However, the plug spring of this embodiment is clearly not limited to these specifications and can be designed with other specifications as required.

[0045] Furthermore, in this embodiment, a fifth slot section 14 is provided on the midline of the plug spring body 3. This fifth slot section 14 is located above the third slot section 8. The slot pitch W5 of the fifth slot section 14 is greater than the slot pitch W3 of the third slot section 8. This fifth slot section 14 serves as a lateral elastic force adjustment slot, also adjusting the clamping force between the two plug-in sections 10. Specifically, the fifth slot section 14 is arc-shaped, appearing as an arc-shaped notch in the third slot section 8. If variations in the width or thickness of the plug spring make insertion of the insert difficult or require excessive force, the fifth slot section 14 can be used to adjust the position. This adjustment can be achieved by squeezing or prying apart the two plug-in sections 10, or by selecting a plug spring with a fifth slot section 14 of varying arc size. In some embodiments, the fifth slot section 14 may be omitted depending on design requirements.

[0046] Furthermore, in this embodiment, a power connection part 13 is provided at the lower part of the plug spring body 3. The power connection part 13 is used to connect a wire or perform soldering. When the power connection part 13 connects the circuit, a current collection area B1 is formed at the lower part of the plug spring body 3, and a current dispersion area B2 is formed at the plug-in part 10. Current converges from the plug-in part 10 to the lower part of the plug spring body 3 or diverges from the lower part of the plug spring body 3 to the plug-in part 10. Particularly, when two plug springs are inserted into each other (in this case, the plug spring simultaneously functions as a socket and a plug), or when the plug spring is docked with the existing insert piece 2 (in this case, the plug spring functions as a socket), the groove surface of the first groove section 6 forms a conductive contact surface A1; and when the plug spring is inserted into the existing plug spring 1 (in this case, the plug spring functions as a plug), the upper and lower surfaces A2 and the two side surfaces A3 of the plug spring all form conductive contact surfaces. Preferably, the power connection part 13 can be formed as a pin 15 or a wire clamp 16. That is, when the plug spring is applied to a PCB circuit board, the plug spring is a board terminal at this time, and the power connection part 13 is preferably a pin 15 structure for easy soldering connection; when the plug spring is applied to a power circuit, a control circuit or a communication circuit, the plug spring is a wire terminal at this time, and the power connection part 13 is preferably a wire clamp 16 structure for easy plug-in connection. It should be noted that the pin 15 structure and the wire clamp 16 structure are both conventional means in the art and can be designed arbitrarily according to actual needs.

[0047] In some embodiments, an extension part 17 is further provided at the lower part of the plug spring body 3. The extension part 17 can play a role in auxiliary support, and the power connection part 13 can also be arranged on the extension part 17. The extension part 17 can be perpendicular or flush with the plug spring body 3, or can be arranged at any angle with the plug spring body 3. The top surface of the extension part 17 is not higher than the limit platform 5 to prevent the extension part 17 from being limited in advance and resulting in insufficient insertion depth.

[0048] For the multi-purpose plug spring of the present utility model, an introduction angle 4 is provided on the outer side of the front end of the plug spring body 3, and a limit platform 5 is provided on the outer side of the middle section; a first groove section 6, a second groove section 7, a third groove section 8 and a fourth groove section 9 are sequentially arranged on the center line of the plug spring body 3 to divide the upper part of the plug spring body 3 into symmetric plug-in parts 10. The upper and lower ends of the first groove section 6 respectively form an inlet 11 and an outlet 12; a power connection part 13 is provided at the lower part of the plug spring body 3. The structure of the plug spring is simple and the manufacturing cost is relatively low; and it simultaneously has the functions of a socket and a plug, and two plug springs can be inserted into each other for conduction, with a wider application range.

[0049] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0050] The above-described embodiments merely represent several implementation manners of the present utility model. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all fall within the protection scope of the present utility model. Therefore, the protection scope of the patent of the present utility model shall be subject to the appended claims.

Claims

1. Multi-purpose plug spring, characterized in that, Comprising: A plug spring body, made of electrically conductive elastic metal material; An introduction angle is provided on the outer side of the front end of the plug spring body, and a limiting platform is provided on the outer side of the middle section of the plug spring body; A continuous first groove section, a second groove section, a third groove section, and a fourth groove section are sequentially arranged on the center line of the plug spring body, and the first groove section, the second groove section, the third groove section, and the fourth groove section divide the upper part of the plug spring body into symmetric plug-in parts; The first groove section is located at the front end of the plug spring body, and an inlet and an outlet are respectively formed at the upper and lower ends of the first groove section. Both the inlet and the outlet are provided with rounded corners, and the fourth groove section is formed as a longitudinal elastic force adjustment groove; The groove pitch of the first groove section is smaller than that of the second groove section, the groove pitch of the second groove section is smaller than that of the third groove section, and the groove pitch of the fourth groove section is smaller than or equal to that of the first groove section; A power connection part is arranged at the lower part of the plug spring body.

2. The multi-purpose socket spring according to claim 1, characterized in that, A fifth groove section is further arranged on the center line of the plug spring body. The fifth groove section is located on the third groove section, and the groove pitch of the fifth groove section is larger than that of the third groove section. The fifth groove section is formed as a lateral elastic force adjustment groove.

3. The multi-purpose plug spring according to claim 1, characterized in that, The outlet is in arc transition with the second groove section, and the second groove section is in arc transition with the third groove section.

4. The multi-purpose plug spring according to claim 3, characterized in that, The lower part of the plug spring body is formed as a current concentration area, and the plug-in part is formed as a current dispersion area.

5. The multi-purpose plug spring according to claim 1, wherein The plug spring body is a sheet body, and the thickness of the plug spring body is 0.1 - 0.2 mm smaller than the groove pitch of the first groove section.

6. The multi-purpose plug spring according to claim 5, wherein, The thickness of the plug spring body is 0.4 ± 0.01 mm or 0.5 ± 0.01 mm or 0.6 ± 0.01 mm or 0.8 ± 0.01 mm.

7. The multi-purpose plug spring according to claim 1, wherein When the two plug spring bodies are inserted into each other, the groove surface of the first groove section is formed as an electrically conductive contact surface.

8. The multi-purpose plug spring according to claim 1, characterized in that, An extension part is arranged at the lower part of the plug spring body, and the top surface of the extension part is not higher than the limiting platform.

9. The multi-purpose plug spring as claimed in claim 8, wherein, The extension part is perpendicular to the plug spring body, and the power connection part can also be arranged on the extension part.

10. The multi-purpose plug spring according to claim 9, characterized in that, The power connection part is formed as a pin or a wire clamp.

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