Riveting-pressure-free spring needle and electronic equipment
The manufacturing of the rivet-free spring needle through the rivet-free pressing process and pipe forming technology solves the problems of time-consuming and labor-intensive turning processing and uneven electroplating in the existing technology, and achieves a more efficient and lower-cost production process and better product performance.
Patent Information
- Application Number
- CN202421808200.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-07-29
AI Technical Summary
During the production process of existing spring needles, there are problems such as time-consuming and laborious turning processing, difficulty in controlling the drilling depth, insufficient smoothness of the inner wall and uneven electroplating, which affects the product performance.
The needle tube and bottom plate are manufactured through pipe molding and stamping technology to form a shell structure of the spring needle without riveting, avoiding the problems of turning marks and drilling depth control, and fully electroplating is achieved through the pipe of Zhongtong.
It improves production efficiency and reduces production costs, avoids the problems of insufficient smoothness of the inner wall and uneven electroplating, and enhances product performance and application prospects.
Smart Images
Figure CN222839073U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of electronic components, and in particular relates to a riveting-free spring pin and electronic equipment. Background Art
[0002] A pogo pin (pogo pin) is a spring-type probe formed by riveting three basic parts: a needle (Plunger), a needle tube (Tube) and a spring (Spring) with precision instruments. Most pogo pins on the market are made by turning rods into needle tubes. This has the following disadvantages: drilling is required after turning, which is time-consuming, labor-intensive and costly; the drilling depth is difficult to control, and turning marks are easily produced, resulting in insufficient inner wall smoothness; if the inner hole is too deep, it is difficult to electroplate, and it is easy to turn black and uneven film thickness, which may affect the performance of the pogo pin. Utility Model Content
[0003] The purpose of the utility model is to overcome at least one of the deficiencies of the above-mentioned prior art, and to provide a rivet-free spring pin and an electronic device, which have higher production efficiency and lower production cost; the drilling depth is easier to control, thus avoiding the problem of insufficient inner wall smoothness caused by turning marks in the prior art; the electroplating can be very sufficient, thus avoiding the problems of blackening of the electroplating, uneven film thickness, and possible impact on the performance of the rivet-free spring pin.
[0004] The technical solution of the utility model is: a rivet-free spring needle, comprising: a needle tube, which is formed by a tube and has an upper end and a lower end opposite to each other, the interior of the needle tube has a through hole penetrating the upper end and the lower end, and the upper end of the needle tube has an extrusion-type shrinkage structure; a needle head, comprising a sliding part and a terminal part arranged at one end of the sliding part, the sliding part is slidably arranged in the through hole, the terminal part passes through the upper end of the through hole and is exposed to the upper end of the needle tube; a bottom plate, fixedly connected to the lower end of the needle tube; an elastic member, which is arranged in the needle tube, and one end abuts against the sliding part, and the other end abuts against the bottom plate.
[0005] As a further improvement of the present technical solution, the sliding portion is provided with a limiting structure for preventing the sliding portion from sliding out of the upper end of the needle tube; the limiting structure includes a protruding edge provided on the side of the sliding portion and radially protruding from the sliding portion, and the protruding edge has an end surface that can abut against the inner side of the extrusion-type shrinking structure.
[0006] As a further improvement of the technical solution, a guide structure is provided between the needle head and the through hole wall of the needle tube.
[0007] As a further improvement of the present technical solution, the guide structure includes a guide member provided on the sliding part and a guide groove provided on the wall of the through hole, and the guide member is slidably inserted in the guide groove; and / or, the guide structure includes a guide member provided on the wall of the through hole and a guide groove provided on the sliding part, and the guide member is slidably inserted in the guide groove.
[0008] As a further improvement of the technical solution, the bottom surface of the sliding portion is an inclined surface.
[0009] As a further improvement of the technical solution, the extrusion-type necking structure is a curved surface structure.
[0010] As a further improvement of the technical solution, the bottom plate is connected to the lower end of the needle tube through a laser welding point and covers the through hole.
[0011] As a further improvement of the technical solution, a plurality of the laser welding points are arranged in a ring shape along the end surface of the lower end of the needle tube.
[0012] As a further improvement of the technical solution, the needle tube, the needle head and the base plate are copper alloy parts; and the elastic part is a stainless steel spring.
[0013] The utility model also provides an electronic device, comprising any one of the above-mentioned rivet-free spring pins.
[0014] The utility model provides a rivet-free spring needle and an electronic device, wherein the rivet-free spring needle comprises a needle tube, a needle head, a bottom plate and an elastic member; the needle tube is formed by a tube material and has an upper end and a lower end opposite to each other, the inside of the needle tube has a through hole penetrating the upper end and the lower end, and the upper end of the needle tube has an extrusion-type shrinkage structure; the needle head comprises a sliding part and a terminal part arranged at one end of the sliding part, the sliding part is slidably arranged in the through hole, the terminal part passes through the upper end of the through hole and is exposed to the upper end of the needle tube; the bottom plate is fixedly connected to the lower end of the needle tube; the elastic member is arranged in the needle tube, and one end of the elastic member abuts against the sliding part, and the other end abuts against the bottom plate. In the prior art, an integrated turning process is often used to manufacture needle tubes, while in the utility model, a hollow tube is connected with a stamped bottom plate to form an outer shell structure of a rivet-free spring needle, and the needle tube can be formed by cutting and extruding the tube, and the bottom plate can be made by stamping a plate. Compared with the prior art, the utility model has higher production efficiency and lower production cost during production, and the production capacity is greatly increased, which is conducive to realizing large-scale and efficient production and has broad application prospects; and the drilling depth of the needle tube in the utility model is easier to control, avoiding the problem of insufficient inner wall smoothness caused by turning marks in the prior art; and because the needle tube is hollow, the rivet-free spring needle can be fully electroplated, avoiding the problems of blackening of electroplating, uneven film thickness, and possible impact on the performance of the rivet-free spring needle. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0016] Figure 1 It is a three-dimensional diagram of a rivet-free spring pin provided by an embodiment of the utility model;
[0017] Figure 2 It is an exploded view of a rivet-free spring pin provided by an embodiment of the utility model;
[0018] Figure 3 This is an exploded view of the rivet-free spring pin provided by the embodiment of the utility model from another perspective;
[0019] Figure 4 It is a schematic diagram of the needle head and needle tube in the rivet-free spring needle provided by the embodiment of the utility model;
[0020] Figure 5 It is a schematic diagram of the installation of the needle head, needle tube and elastic member in the rivet-free spring needle provided by the embodiment of the utility model;
[0021] Figure 6 It is a schematic diagram of the installation of a needle head, a needle tube, an elastic member and a base plate in a rivet-free spring needle provided by an embodiment of the utility model.
[0022] In the figure: 10, rivet-free spring needle; 1, needle tube; 11, upper end; 12, lower end; 13, through hole; 14, extrusion type shrinkage structure; 2, needle head; 21, sliding part; 22, terminal part; 23, protruding edge; 3, bottom plate; 4, elastic member; 5, laser welding point. DETAILED DESCRIPTION
[0023] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0024] It should be noted that the terms “setting” and “connection” should be understood in a broad sense. For example, it can be directly setting or connecting, or it can be indirectly setting or connecting through a central component or a central structure.
[0025] In addition, if there are terms such as "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating orientation or positional relationship in the embodiments of the present invention, they are based on the orientation or positional relationship or the conventional placement state or use state shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the structure, feature, device or element referred to must have a specific orientation or positional relationship, nor must it be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified, "multiple" means two or more.
[0026] The various specific technical features and embodiments described in the specific implementation methods can be combined in any suitable manner unless there is any contradiction. For example, different implementation methods can be formed by combining different specific technical features / embodiments. In order to avoid unnecessary repetition, the various possible combinations of the specific technical features / embodiments in the present utility model will not be described separately.
[0027] The utility model provides a rivet-free spring pin, please refer to Figures 1 to 6The rivet-free spring needle 10 includes a needle tube 1, a needle head 2, a bottom plate 3 and an elastic member 4; the needle tube 1 is formed by a tube and has an upper end 11 (the end away from the bottom plate 3) and a lower end 12 (the end close to the bottom plate 3) opposite to each other, the needle tube 1 has a through hole 13 passing through the upper end 11 and the lower end 12, and the upper end 11 of the needle tube 1 has an extrusion-type shrinkage structure 14; the needle head 2 includes a sliding portion 21 and a terminal portion 22 arranged at one end of the sliding portion 21, and the sliding portion 21 is slidingly arranged In the through hole 13, the terminal portion 22 passes through the upper end 11 of the through hole 13 and is exposed to the upper end 11 of the needle tube 1, so that it can abut against an external device to realize current or information transmission; the base plate 3 is fixedly connected to the lower end 12 of the needle tube 1; the elastic member 4 is arranged in the needle tube 1, and one end abuts against the sliding portion 21, and the other end abuts against the base plate 3. Under the support of the base plate 3, the elastic member 4 can provide elastic force to the needle 2. In the prior art, an integrated turning process is often used to manufacture needle tubes, while in the utility model, a through tube is connected with a stamped bottom plate 3 to form the outer shell of a rivet-free spring needle, and the needle tube 1 therein can be formed by cutting and extruding the tube. The tube can be a seamless steel tube, etc., and its inner wall is smooth and tidy. The tube can be cut and formed according to a set length, and the bottom plate 3 can be obtained by stamping a plate. Compared with the prior art, the utility model has higher production efficiency and lower production cost during production, greatly increased production capacity, and is conducive to large-scale and efficient production, and has broad application prospects; and in the utility model, the depth of the needle tube 1 is easier to control, and the problem of insufficient inner wall smoothness caused by turning marks in the prior art is avoided; and because the needle tube 1 is through, the rivet-free spring needle 10 can be electroplated very fully, avoiding problems such as blackening of electroplating and uneven film thickness.
[0028] For needle tube 1, see Figures 1 to 3 Preferably, the extrusion type necking structure 14 can be a curved surface structure, that is, the extrusion type necking structure 14 can have no sharp structure, and the surface of the extrusion type necking structure 14 is smooth. During processing, the tube can be first cut to form a side tube, and then the upper end 11 of the side tube is extruded and closed by a roller rolling device to form the extrusion type necking structure 14. The opening of the extrusion type necking structure 14 is the opening of the through hole 13 at the upper end 11 of the needle tube 1 (smaller than the inner diameter of the tube). This is not only simple to process, but also the curved surface structure can effectively avoid scratching external equipment when used compared to sharp structures such as inclined surfaces.
[0029] Preferably, the inner side of the opening of the extrusion type necking structure 14 (i.e., the hole wall at the opening of the upper end 11 of the through hole 13) can be a smooth surface. During processing, the inner side of the extrusion type necking structure 14 can be polished by a sander or other device. This arrangement not only makes the edge of the opening of the extrusion type necking structure 14 smoother, but also can accurately adjust the edge of the opening of the extrusion type necking structure 14, effectively preventing the terminal part 22 from scratching the edge of the opening of the extrusion type necking structure 14 when the sliding part 21 slides.
[0030] For needle 2, see Figures 1 to 3 Optionally, the sliding portion 21 may be provided with a limiting structure for preventing the sliding portion 21 from sliding out of the upper end 11 of the needle tube 1 , thereby effectively limiting the travel of the sliding portion 21 .
[0031] Specifically, the limiting structure may include a protruding edge 23 provided on the side of the sliding portion 21 and radially protruding from the sliding portion 21, the protruding edge 23 having an end surface that can abut against the inner side of the extrusion-type shrinking structure 14, and when the sliding portion 21 slides a certain distance toward the upper end 11 of the needle tube 1, the protruding edge 23 abuts against the inner side of the end surface of the extrusion-type shrinking structure 14, thereby effectively preventing the sliding portion 21 from sliding out of the upper end 11 of the needle tube 1. Of course, the specific structure of the limiting structure described in the utility model is not limited thereto, for example, the limiting structure may also include a limiting member or a limiting groove provided on the outer surface of the sliding portion 21, and a limiting groove or a limiting member provided on the hole wall of the through hole 13 of the needle tube 1, the limiting member being inserted into the limiting groove, and when the sliding portion 21 slides a certain distance, the limiting member abuts against the wall surface of the limiting groove to achieve the limiting of the sliding portion 21.
[0032] Preferably, the bottom surface of the sliding portion 21 may be an inclined surface, which has a good application effect.
[0033] For the base plate 3, see Figures 1 to 3 Preferably, the bottom plate 3 can be a sheet metal stamping part, which can be manufactured by stamping and blanking the sheet metal during processing, and the processing is convenient and efficient.
[0034] Preferably, the base plate 3 can be connected to the lower end 12 of the needle tube 1 and cover the through hole 13 through a laser welding point 5. The base plate 3 is connected to the needle tube 1 by laser welding, which is convenient and efficient. In this way, the production efficiency and production capacity are higher, the production cost is lower, and large-scale efficient production is achieved. It has broad application prospects. The utility model introduces laser welding technology into the field of spring needle manufacturing and achieves a technical breakthrough in the riveting-free spring needle 10.
[0035] Specifically, a plurality of the laser welding points 5 can be arranged in a ring shape along the end surface of the lower end 12 of the needle tube 1 (along the wall surface of the lower end opening of the through hole 13), so that the bottom plate 3 can be firmly connected to the lower end 12 of the needle tube 1 through the laser welding points 5 and cover the through hole 13. Further, the laser welding point 5 can be arranged between the bottom plate 3 and the end surface of the lower end 12 of the needle tube 1, or can pass through the bottom plate 3 to connect to the end surface of the lower end 12 of the needle tube 1.
[0036] Specifically, the needle tube 1, the needle head 2 and the base plate 3 can be metal parts, preferably copper alloy parts, which have good oxidation and corrosion resistance and high conductivity.
[0037] For the elastic member 4, see Figures 1 to 3 Optionally, the elastic member 4 may be a stainless steel spring having good anti-oxidation and corrosion properties.
[0038] In specific applications, a guide structure can be provided between the needle head 2 and the wall of the through hole 13 of the needle tube 1. When the sliding part 21 slides, the guide structure can play a guiding role, thereby reducing the loss of the rivet-free spring needle 10, avoiding affecting the performance of the rivet-free spring needle 10, and extending the life of the rivet-free spring needle 10.
[0039] Specifically, the guide structure may include a guide member provided on the sliding portion 21 and a guide groove provided on the hole wall of the through hole 13, wherein the guide member is slidably inserted into the guide groove; and / or, the guide structure includes a guide member provided on the hole wall of the through hole 13 and a guide groove provided on the sliding portion 21, wherein the guide member is slidably inserted into the guide groove, thereby guiding the sliding portion 21. The guide groove may be formed by stamping or extruding a U-shaped groove or the like on the side of the tube 1.
[0040] In a specific application, a positioning structure may be provided between the elastic member 4 and the wall of the through hole 13 of the bottom plate 3 or the needle tube 1, and the positioning structure can play a positioning role on the elastic member 4 during the installation and positioning of the elastic member 4 and the elastic contraction of the elastic member 4. Preferably, in the present utility model, the bottom plate 3 may preferably be provided with a positioning structure such as a positioning groove or a positioning column for the elastic member 4 to be plugged (sleeved) on the elastic member 4, so as to play a positioning effect on the elastic member 4, and of course the setting of the positioning structure is not limited thereto.
[0041] During processing and assembly, Figure 4 As shown, firstly, the needle 2 is placed into the through hole 13 of the needle tube 1, the sliding portion 21 of the needle 2 is slidably arranged in the through hole 13 of the needle tube 1, and the terminal portion 22 of the needle 2 passes through the upper end 11 of the through hole 13 and is exposed to the upper end 11 of the needle tube 1; Figure 5 As shown, the elastic member 4 is placed in the through hole 13 of the needle tube 1, and one end of the elastic member 4 abuts against the sliding portion 21; then Figure 6 As shown, the bottom plate 3 is pre-placed at the other end of the elastic member 4; finally, the bottom plate 3 is pressed toward the lower end 12 of the needle tube 1, and the bottom plate 3 is connected to the lower end 12 of the needle tube 1 through the laser welding point 5, as shown in FIG. Figure 1 The installation is complete.
[0042] The utility model also provides an electronic device, which may include the rivet-free spring pin 10. The electronic device may be a smart watch, a mobile phone, a tablet computer, etc.
[0043] The utility model provides a rivet-free spring needle and an electronic device, wherein the rivet-free spring needle 10 (elastic connection terminal) comprises a needle tube 1, a needle head 2, a bottom plate 3 and an elastic member 4; the needle tube 1 is formed by a tube and has an upper end 11 and a lower end 12 opposite to each other, the inside of the needle tube 1 has a through hole 13 penetrating the upper end 11 and the lower end 12, and the upper end 11 of the needle tube 1 has an extrusion-type shrinkage structure 14; the needle head 2 comprises a sliding portion 21 and a terminal portion 22 arranged at one end of the sliding portion 21, the sliding portion 21 is slidably arranged in the through hole 13, the terminal portion 22 passes through the upper end 11 of the through hole 13 and is exposed to the upper end 11 of the needle tube 1; the bottom plate 3 is fixedly connected to the lower end 12 of the needle tube 1; the elastic member 4 is arranged in the needle tube 1, and one end abuts against the sliding portion 21, and the other end abuts against the bottom plate 3. In the prior art, an integrated turning process is often used to manufacture needle tubes, while in the utility model, a through tube is connected to a stamped bottom plate 3 to form a shell structure of a rivet-free spring needle, and the needle tube 1 can be formed by cutting and extruding the tube, and the bottom plate 3 can be made by stamping a plate. Compared with the prior art, the utility model has higher production efficiency and lower production cost during production, and the production capacity is greatly increased, which is conducive to realizing large-scale and efficient production and has broad application prospects; and the needle tube in the utility model avoids the problem of insufficient inner wall smoothness caused by turning marks in the prior art; and because the needle tube 1 is through, the rivet-free spring needle 10 can be electroplated very fully, avoiding the problems of blackening of electroplating, uneven film thickness, and possible impact on the performance of the rivet-free spring needle 10.
[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent substitution or improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A rivet-free spring pin, characterized in that: include: The needle tube is formed by a tube and has an upper end and a lower end opposite to each other. The needle tube has a through hole passing through the upper end and the lower end. The upper end of the needle tube has an extrusion-type shrinkage structure. A needle head, comprising a sliding portion and a terminal portion disposed at one end of the sliding portion, wherein the sliding portion is slidably disposed in the through hole, and the terminal portion passes through the upper end of the through hole and is exposed at the upper end of the needle tube; A bottom plate, fixedly connected to the lower end of the needle tube; The elastic member is arranged in the needle tube, and one end of the elastic member abuts against the sliding part, and the other end abuts against the bottom plate.
2. The rivet-free spring pin according to claim 1, characterized in that: The sliding part is provided with a limiting structure for preventing the sliding part from sliding out of the upper end of the needle tube; the limiting structure includes a protruding edge provided on the side of the sliding part and radially protruding from the sliding part, and the protruding edge has an end surface that can abut against the inner side of the extrusion type shrinking structure.
3. The rivet-free spring pin according to claim 1, characterized in that: A guide structure is provided between the needle head and the through hole wall of the needle tube.
4. The rivet-free spring pin according to claim 3, characterized in that: The guide structure includes a guide member provided on the sliding part and a guide groove provided on the wall of the through hole, and the guide member is slidably inserted in the guide groove; and / or, the guide structure includes a guide member provided on the wall of the through hole and a guide groove provided on the sliding part, and the guide member is slidably inserted in the guide groove.
5. The rivet-free spring pin according to claim 1, characterized in that: The bottom surface of the sliding part is an inclined surface.
6. The rivet-free spring pin according to any one of claims 1 to 5, characterized in that: The extrusion type necking structure is a curved surface structure.
7. The rivet-free spring pin according to any one of claims 1 to 5, characterized in that: The bottom plate is connected to the lower end of the needle tube through a laser welding point and covers the through hole.
8. The rivet-free spring pin according to claim 7, characterized in that: A plurality of laser welding points are arranged in a ring shape along the end surface of the lower end of the needle tube.
9. The rivet-free spring pin according to any one of claims 1 to 5, characterized in that: The needle tube, needle head and base plate are copper alloy parts; the elastic part is a stainless steel spring.
10. An electronic device, characterized in that: The invention comprises the rivet-free spring pin as described in any one of claims 1 to 9.