Elastic needle and earphone charging box
By designing the protective cap to block the contact part and movable port in the needle of the headphone charging box, the problem that traditional needles are susceptible to liquid penetration is solved, and good electrical contact and charging performance is achieved.
Patent Information
- Application Number
- CN202323536299.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-23
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2033-12-23
AI Technical Summary
The needle of a traditional needle is generally straight, and external liquid can easily penetrate into the inside of the needle along the side wall of the needle, forming crystals, affecting the movement performance of the needle and leading to poor charging contact.
A elastic needle including a needle tube, a needle, an elastic member and a protective cap is designed. The protective cap cover is arranged at the movable port end of the needle tube. It is a conductive body and contacts the needle contact part and moves with the needle. The protective cap blocks the contact part and Moving port to block the entry of foreign objects from outside.
Effectively block the entry of foreign objects from outside, reduce the impact on the movement performance of the needle, ensure the service life of the needle, and ensure good electrical contact between the headphone charging box and the headphones, achieving normal charging.
Smart Images
Figure CN222300908U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of electronic equipment, and more specifically, to a spring pin and an earphone charging box. Background Art
[0002] The spring pins on the earphone charging box serve as connectors for the electrical connection between the charging box and the earphones, which can realize the transmission of power and provide the required power for the earphones. In addition, the earphone charging box uses spring pins to quickly charge the earphones, so that the earphones can be charged at any time, which improves the endurance of the earphones and eliminates the trouble of charging with wires.
[0003] The needle of a traditional spring needle is generally straight, so external liquids such as sweat can easily penetrate into the interior of the needle tube along the side wall of the needle. After a long time, the liquid will form crystals inside the needle tube, affecting the movement performance of the needle, resulting in poor contact between the spring needle and the earphone charging, or even failure to charge the earphone. Utility Model Content
[0004] The purpose of the embodiments of the present application is to provide a spring needle and an earphone charging box to solve the technical problem in the prior art that the needle tip of the spring needle is generally straight, and the external liquid can easily penetrate into the interior of the needle tube along the side wall of the needle tip and form crystals inside the needle tube, thereby affecting the movement performance of the needle tip.
[0005] In order to achieve the above-mentioned purpose, the technical solution adopted in this application is: to provide a spring needle, comprising:
[0006] A needle tube, wherein an active cavity is provided in the needle tube, and an active port communicating with the active cavity is provided at one end of the needle tube;
[0007] A needle, the needle comprising a connecting portion and a contact portion connected to each other, the connecting portion being received in the movable cavity, the contact portion being movably disposed through the movable opening, and at least a portion of the contact portion extending out of the needle tube at the movable opening;
[0008] an elastic member, the elastic member being received in the movable cavity and elastically abutting against the connecting portion; and
[0009] A protective cap is provided on the contact portion and one end of the needle tube provided with the movable opening, and can move with the needle head. The protective cap is a conductor, and the protective cap is in conductive contact with the contact portion.
[0010] The beneficial effect of the elastic needle provided by the present application is that: compared with the prior art, the elastic needle of the present application achieves shielding of the contact part and the active opening by arranging the protective cap cover on the contact part and the end of the needle tube with the active opening, which can effectively prevent foreign objects from entering the active opening or the active cavity and jamming the needle, reduce the factors affecting the movement performance of the needle, and effectively ensure the service life of the elastic needle. When the earphone charging box uses the elastic needle to charge the earphone, the elastic needle can maintain good electrical contact with the earphone. The protective cap is a conductor and is in conductive contact with the contact part, and can move synchronously with the needle, so that the protective cap can transfer the electrical energy of the needle to the earphone, thereby realizing normal charging of the earphone by the earphone charging box.
[0011] Optionally, the protective cap is a metal cap.
[0012] Optionally, the protective cap includes a cap body and a brim, one end of the cap body is provided with an opening, the cap body is covered by the opening on the contact portion and the end of the needle tube provided with the movable port, and the brim is provided on the outer edge of the opening along the circumference of the cap body.
[0013] Optionally, the cap body includes a first cover portion and a second cover portion that are connected to each other, the inner diameter of the first cover portion is larger than the inner diameter of the second cover portion, the first cover portion is adaptively covered on the needle tube, the second cover portion is adaptively covered on the contact portion, the opening is opened at one end of the first cover portion away from the second cover portion, and the brim is protruded from the outer surface of the first cover portion.
[0014] Optionally, the outer surface of the first covering portion is an arc-shaped convex surface.
[0015] Optionally, a transition portion is provided between the first cover portion and the second cover portion, and an outer surface of the transition portion is a curved surface.
[0016] Optionally, the outer diameter of the connecting portion is greater than the inner diameter of the movable opening.
[0017] Optionally, the connecting portion is provided with a guide groove, the elastic member is a coil spring, and part of the elastic member is arranged in the guide groove.
[0018] The present application also provides an earphone charging box, comprising the spring pin described in any of the above items.
[0019] The earphone charging box provided by the present application has the beneficial effect that: compared with the prior art, the earphone charging box of the present application adopts the above-mentioned spring needle, and the spring needle realizes shielding the contact part and the active opening by setting the protective cap cover on the contact part and the end of the needle tube where the active opening is provided, and can effectively prevent foreign objects from entering the active opening or the active cavity and jamming the needle, reduce the factors affecting the movement performance of the needle, and effectively ensure the service life of the spring needle. When charging the earphone, the spring needle can maintain good electrical contact with the earphone, the protective cap is a conductor, and is in conductive contact with the contact part, and can move synchronously with the needle, so that the protective cap can transfer the electrical energy of the needle to the earphone, and the earphone charging box can charge the earphone normally.
[0020] Optionally, the earphone charging box also includes a shell, the shell having a first side surface and a second side surface arranged opposite to each other, the shell is also provided with a through opening running through the first side surface and the second side surface, the protective cap is passed through the through opening, and one end of the protective cap can be abutted against the first side surface, and the other end of the protective cap can protrude out of the second side surface. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0022] Figure 1 A schematic diagram of the three-dimensional structure of the elastic pin provided in an embodiment of the present application;
[0023] Figure 2 A schematic diagram of the vertical cross-sectional structure of the spring pin provided in the embodiment of the present application Figure 1 , where the needle is in a natural state;
[0024] Figure 3 A schematic diagram of the vertical cross-sectional structure of the spring pin provided in the embodiment of the present application Figure 1 , wherein the needle is in a compressed state;
[0025] Figure 4 A schematic diagram of a partial three-dimensional structure of an earphone charging box provided in an embodiment of the present application, wherein the needle is in a compressed state;
[0026] Figure 5 For along Figure 4 The cross-sectional structure diagram along the AA line;
[0027] Figure 6 for Figure 5 Enlarged structural diagram at B in the middle.
[0028] Description of main reference numerals:
[0029] 100, spring needle; 10, needle tube; 11, movable cavity; 12, movable opening; 20, needle head; 21, connecting part; 211, guide groove; 22, contact part; 30, elastic member; 40, protective cap; 41, cap body; 411, first covering part; 412, second covering part; 413, transition part; 414, opening; 42, brim; 200, shell; 201, first side surface; 202, second side surface; 203, through opening; 204, charging slot; 300, circuit board. DETAILED DESCRIPTION
[0030] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.
[0031] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0033] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0034] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0035] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.
[0036] Please also read Figures 1 to 3 Now, the elastic needle 100 provided in the embodiment of the present application is described. The elastic needle 100 is applied to the earphone charging box. Of course, the elastic needle 100 can also be applied to other electronic devices that require it, such as electronic bracelets, handheld electric fans, etc. The elastic needle 100 includes: a needle tube 10, a needle head 20, an elastic member 30 and a protective cap 40.
[0037] An active cavity 11 is provided in the needle tube 10, and an active opening 12 communicating with the active cavity 11 is provided at one end of the needle tube 10; the needle head 20 includes a connecting portion 21 and a contact portion 22 connected to each other, the connecting portion 21 is accommodated in the active cavity 11, the contact portion 22 is movably arranged in the active opening 12, and at least a portion of the contact portion 22 extends out of the needle tube 10 at the active opening 12; the elastic member 30 is accommodated in the active cavity 11 and elastically abuts against the connecting portion 21; the protective cap 40 is covered on the contact portion 22 and one end of the needle tube 10 provided with the active opening 12, and can move with the needle head 20, the protective cap 40 is a conductor, and the protective cap 40 is in conductive contact with the contact portion 22.
[0038] The end of the needle tube 10 away from the active port 12 is used for conductive contact with the circuit board 300, and the protective cap 40 is used for conductive contact with the earphone.
[0039] The needle 20 can move along the axial direction of the needle tube 10 through the movable opening 12. Specifically, when an external force along the axial direction of the needle tube 10 is applied to the contact portion 22 through the protective cap 40, the needle 20 can be retracted into the movable cavity 11 through the movable opening 12 under the action of the external force, and the elastic member 30 is compressed, that is, the needle 20 is in a compressed state, such as Figure 3 After the external force is removed, the elastic member 30 rebounds, and the needle 20 can extend through the movable opening 12 under the elastic force of the elastic member 30, that is, the needle 20 is in a natural state, such as Figure 2 .
[0040] It should be noted that the connecting portion 21 is always located in the movable cavity 11 . It can be understood that the needle 20 always maintains a state of being movably connected with the needle tube 10 to prevent the needle 20 from being completely separated from the needle tube 10 .
[0041] The inner surface of the protective cap 40 contacts the outer surface of the contact portion 22 to achieve conductive contact between the protective cap 40 and the contact portion 22 . Meanwhile, when the needle 20 moves along the axial direction of the needle tube 10 , it can drive the protective cap 40 to move synchronously.
[0042] The protective cap 40 is disposed over the contact portion 22 and one end of the needle tube 10 with the movable opening 12, and is used to shield the contact portion 22 and the movable opening 12, and can prevent foreign matter from entering the movable opening 12 or the movable cavity 11. Specifically, when foreign matter falls onto the protective cap 40, it will fall along the outer wall of the protective cap 40 to the outside of the elastic needle 100, and cannot contact the contact portion 22, nor can it fall to the position of the movable opening 12. The foreign matter can be a solid substance, such as earwax, or a liquid, such as sweat. In the embodiment of the present application, sweat is taken as an example.
[0043] Compared with the prior art, the elastic needle 100 provided in the present application has a protective cap 40 covering the contact portion 22 and one end of the needle tube 10 with the movable opening 12, so as to shield the contact portion 22 and the movable opening 12, and can effectively prevent foreign objects from entering the movable opening 12 or the movable cavity 11 and jamming the needle 20, reduce the factors affecting the movement performance of the needle 20, and effectively ensure the service life of the elastic needle 100. When the earphone charging box uses the elastic pin 100 to charge the earphone, the elastic pin 100 can maintain good electrical contact with the earphone, the protective cap 40 is a conductor, and is in conductive contact with the contact portion 22, and can move synchronously with the needle 20, so that the protective cap 40 can transfer the electrical energy of the needle 20 to the earphone, so that the earphone charging box can charge the earphone normally.
[0044] It should be noted that the protective cap 40 can be fixedly connected to the contact portion 22 by welding or the like. Of course, the protective cap 40 can also be movably sleeved on the contact portion 22.
[0045] Specifically in this embodiment, the protective cap 40 is a metal cap with conductive properties, that is, the protective cap 40 is made of metal or metal oxide material, has good conductivity, and the protective cap 40 is not easily deformed. Optionally, the metal can be copper, aluminum, etc., and the metal oxide can be aluminum alloy, stainless steel, copper alloy, etc.
[0046] In one embodiment of this application, please refer to Figure 1 and Figure 2 The protective cap 40 includes a cap body 41 and a brim 42. An opening 414 is provided at one end of the cap body 41. The cap body 41 covers the contact portion 22 and one end of the needle tube 10 with the movable opening 12 through the opening 414. The brim 42 is provided at the outer edge of the opening 414 along the circumference of the cap body 41.
[0047] The cap body 41 is in a strip shape extending along the axial direction of the needle tube 10 , and one end of the cap body 41 away from the opening 414 is a closed structure. The brim 42 is annular, and the outer diameter of the brim 42 is greater than the outer diameter of the needle tube 10 .
[0048] Optionally, the cap body 41 and the brim 42 are integrally formed, which is easy to manufacture.
[0049] The above technical solution, by setting the brim 42 at the outer edge of the opening 414 along the circumference of the cap body 41, after the cap body 41 is covered on the contact portion 22 and the end of the needle tube 10 with the movable opening 12 through the opening 414, the sweat flowing onto the cap body 41 will flow along the outer wall of the cap body 41 to the brim 42, and finally flow from the brim 42 to the outside of the protective cap 40, effectively preventing the sweat from flowing onto the needle 20 and the needle tube 10.
[0050] In one embodiment of this application, please refer to Figure 2 and Figure 3 The cap body 41 includes a first cover portion 411 and a second cover portion 412 that are connected to each other. The inner diameter of the first cover portion 411 is larger than the inner diameter of the second cover portion 412. The first cover portion 411 is adaptively covered on the needle tube 10, and the second cover portion 412 is adaptively covered on the contact portion 22. The opening 414 is opened at one end of the first cover portion 411 away from the second cover portion 412, and the brim 42 is protruded from the outer surface of the first cover portion 411.
[0051] Specifically, the cross-sections of the needle tube 10, the needle 20 and the protective cap 40 are all circular, the inner diameter of the first cover portion 411 is larger than the inner diameter of the second cover portion 412, the outer diameter of the first cover portion 411 is also larger than the outer diameter of the second cover portion 412, and the inner diameter of the first cover portion 411 is slightly larger than the outer diameter of the needle tube 10, so that when the first cover portion 411 is covered on the needle tube 10, the first cover portion 411 is adapted to the needle tube 10, effectively avoiding large shaking of the protective cover relative to the needle tube 10 when the protective cover moves with the needle 20, and the inner diameter of the second cover portion 412 is slightly larger than the outer diameter of the contact portion 22, so that when the second cover portion 412 is covered on the contact portion 22, the second cover portion 412 is adapted to the contact portion 22, effectively ensuring the stability of the cooperation between the second cover portion 412 and the contact portion 22, and effectively avoiding the displacement of the protective cover relative to the needle 20.
[0052] Optionally, the outer surface of the first covering portion 411 is an arc-shaped convex surface.
[0053] Furthermore, a transition portion 413 is provided between the first cover portion 411 and the second cover portion 412 , and an outer surface of the transition portion 413 is a curved surface.
[0054] By providing a transition portion 413 between the first cover portion 411 and the second cover portion 412 , and the outer surface of the transition portion 413 is a curved surface, the curved surface can guide sweat to flow downward, thereby preventing sweat from staying between the first cover portion 411 and the second cover portion 412 .
[0055] In one embodiment of the present application, the outer diameter of the connecting portion 21 is greater than the inner diameter of the movable opening 12 .
[0056] The outer diameter of the connecting portion 21 is greater than the outer diameter of the contact portion 22 , and the outer diameter of the contact portion 22 is smaller than the inner diameter of the movable opening 12 .
[0057] The above technical solution prevents the connecting portion 21 from being separated from the needle tube 10 from the active port 12 by making the outer diameter of the connecting portion 21 larger than the inner diameter of the active port 12 , so that the connecting portion 21 is always arranged in the active cavity 11 .
[0058] In one embodiment of the present application, see Figure 2 The connecting portion 21 is provided with a guide groove 211 , the elastic member 30 is a coil spring, and part of the elastic member 30 is disposed in the guide groove 211 .
[0059] Optionally, the guide groove 211 extends along the axial direction of the needle tube 10, and the guide groove 211 passes through one end of the connecting portion 21 away from the contact portion 22, one end of the elastic member 30 elastically abuts against the bottom of the active cavity 11, and the other end of the elastic member 30 extends into the guide groove 211 and elastically abuts against the connecting portion 21.
[0060] The above technical solution guides the axial deformation of the elastic member 30 by providing a guide groove 211 in the connecting portion 21 , adopting a coil spring as the elastic member 30 , and arranging part of the elastic member 30 in the guide groove 211 .
[0061] Please also read Figures 4 to 6 , an embodiment of the present application also provides an earphone charging box, including the spring pin 100 of any of the above embodiments.
[0062] For details, please refer to Figure 4 and Figure 5 The earphone charging box also includes a shell 200, the shell 200 has a first side surface 201 and a second side surface 202 that are arranged opposite to each other, and the shell 200 is also provided with a through opening 203 that penetrates the first side surface 201 and the second side surface 202. The protective cap 40 is passed through the through opening 203, and one end of the protective cap 40 can abut against the first side surface 201, and the other end of the protective cap 40 can protrude from the second side surface 202, as shown in FIG. Figure 6 .
[0063] The housing 200 is a part of the charging base of the earphone charging box. The housing 200 is also provided with a charging slot 204. The charging slot 204 runs through the second side surface 202. The charging slot 204 is used to place the earphone. The through port 203 is correspondingly connected to the charging slot 204.
[0064] The earphone charging box also includes a battery and a circuit board 300. The circuit board 300 is arranged on the side where the first side 201 is located and is electrically connected to the battery. The end of the needle tube 10 away from the active port 12 is in conductive contact with the circuit board 300. When the earphone is placed in the charging slot 204, the protective cap 40 is in conductive contact with the corresponding electrodes on the earphone to realize charging of the earphone.
[0065] Optionally, when the needle 20 is in a natural state, the brim 42 of the protective cap 40 abuts against the first side surface 201 to prevent the protective cap 40 from being separated from the through opening 203 from the second side surface 202 .
[0066] Compared with the prior art, the earphone charging box of the present application adopts the above-mentioned spring needle 100. The spring needle 100 covers the contact portion 22 and the end of the needle tube 10 with the movable opening 12 by setting the protective cap 40 on the contact portion 22 and the end of the needle tube 10 with the movable opening 12, thereby shielding the contact portion 22 and the movable opening 12, and can effectively prevent foreign objects from entering the movable opening 12 or the movable cavity 11 and jamming the needle 20, thereby reducing the factors affecting the movement performance of the needle 20, and effectively ensuring the service life of the spring needle 100. When charging the earphone, the spring needle 100 can maintain good electrical contact with the earphone. The protective cap 40 is a conductor and is in conductive contact with the contact portion 22, and can move synchronously with the needle 20, so that the protective cap 40 can transfer the electrical energy of the needle 20 to the earphone, thereby realizing normal charging of the earphone by the earphone charging box.
[0067] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims
1. A spring needle, characterized in that: include: A needle tube, wherein an active cavity is provided in the needle tube, and an active port communicating with the active cavity is provided at one end of the needle tube; A needle, the needle comprising a connecting portion and a contact portion connected to each other, the connecting portion being received in the movable cavity, the contact portion being movably disposed through the movable opening, and at least a portion of the contact portion extending out of the needle tube at the movable opening; an elastic member, the elastic member being received in the movable cavity and elastically abutting against the connecting portion; and A protective cap is provided on the contact portion and one end of the needle tube provided with the movable opening, and can move with the needle head. The protective cap is a conductor, and the protective cap is in conductive contact with the contact portion.
2. The spring needle according to claim 1, characterized in that: The protective cap is a metal cap.
3. The spring needle according to claim 1, characterized in that: The protective cap includes a cap body and a brim, one end of the cap body is provided with an opening, the cap body is covered with the contact portion and the end of the needle tube provided with the movable port through the opening, and the brim is provided at the outer edge of the opening along the circumference of the cap body.
4. The spring needle according to claim 3, characterized in that: The cap body includes a first cover portion and a second cover portion that are connected to each other, the inner diameter of the first cover portion is larger than the inner diameter of the second cover portion, the first cover portion is adaptively covered on the needle tube, and the second cover portion is adaptively covered on the contact portion, the opening is opened at one end of the first cover portion away from the second cover portion, and the brim is protruded from the outer surface of the first cover portion.
5. The spring needle according to claim 4, characterized in that: The outer surface of the first cover portion is an arc-shaped convex surface.
6. The spring needle according to claim 4, characterized in that: A transition portion is arranged between the first cover portion and the second cover portion, and an outer surface of the transition portion is a curved surface.
7. The elastic needle according to any one of claims 1 to 6, characterized in that: The outer diameter of the connecting portion is greater than the inner diameter of the movable opening.
8. The elastic needle according to any one of claims 1 to 6, characterized in that: The connecting portion is provided with a guide groove, the elastic member is a coil spring, and part of the elastic member is arranged in the guide groove.
9. An earphone charging box, characterized in that: It comprises the elastic needle as described in any one of claims 1 to 8.
10. The earphone charging box according to claim 9, characterized in that: The earphone charging box also includes a shell, the shell has a first side surface and a second side surface arranged opposite to each other, the shell is also provided with a through opening running through the first side surface and the second side surface, the protective cap is passed through the through opening, and one end of the protective cap can be abutted against the first side surface, and the other end of the protective cap can protrude out of the second side surface.