Connector and charging device

Abstract

The utility model discloses a connector and a charging device, and relates to the technical field of electric connectors, and the connector comprises a needle tube which is provided with an accommodating cavity with an opening at one end; the needle shaft is provided with a movable cavity with an opening in one end, the needle shaft is movably arranged outside the needle tube in a sleeving mode, and the containing cavity is communicated with the movable cavity; the elastic piece is arranged in the containing cavity, and the two ends of the elastic piece are connected with the inner wall of the needle tube and the inner wall of the needle shaft respectively; and the locking assembly is used for connecting the needle tube and the needle shaft so as to limit the needle shaft and the needle tube to be separated along the axial direction. According to the technical scheme provided by the utility model, moisture, moisture and other liquid are effectively prevented from directly contacting with the conductive part in the needle tube, the connector is prevented from being corroded, the conduction of a circuit is prevented from being influenced, and the good conductive performance of the connector is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electric connector, especially relates to a connector and charging device. BACKGROUND

[0002] The connector is widely applied in electronic equipment due to small size, excellent conductivity and good elasticity, is usually composed of one or more spring-loaded metal probes, can provide reliable electrical connection, and the connector is affected by its structural characteristics, i.e. gap between needle tube and needle head, and needle head moves in needle tube, so that water, sweat and other liquids easily penetrate into the inside of needle tube, which affects the use performance of the connector, affects the normal operation of internal spring and other internal components, causes the needle head to move unsmoothly or even be stuck, and also makes the metal part be in a humid environment for a long time, thereby producing rust state, and reduces the quality of electrical connection. SUMMARY

[0003] The utility model discloses a connector and charging device, which aims to solve the problem that liquid easily enters the inside of the connector and affects the use performance of the connector.

[0004] To achieve the above object, the utility model provides a connector, which comprises:

[0005] The needle tube has an accommodating cavity with one end being open.

[0006] The needle shaft has a movable cavity with one end being open, is movably sleeved on the outside of the needle tube, and the accommodating cavity and the movable cavity are communicated.

[0007] The elastic member is arranged in the accommodating cavity and connected with the inner wall of the needle tube and the inner wall of the needle shaft at two ends.

[0008] The locking assembly is used for connecting the needle tube and the needle shaft to limit the needle shaft from being separated from the needle tube in the axial direction.

[0009] In an embodiment, the outer wall of the needle tube is provided with a support along the circumference, and the support is used for connecting the needle tube and the circuit board.

[0010] In an embodiment, the support and the needle tube are detachably connected.

[0011] In an embodiment, the support and the needle tube are integrally formed.

[0012] In an embodiment, the locking assembly comprises a sliding groove and a limiting block, the sliding groove is arranged on the outer periphery of the needle tube and extends along the axial direction of the needle tube, the outer diameter of the needle tube is larger than the outer diameter of the sliding groove, and the limiting block is arranged on the inner wall of the needle shaft and extends along the radial direction towards the shaft center, and the limiting block slides along the axial direction in the sliding groove.

[0013] In an embodiment, the outer periphery of the needle shaft at the position of the limiting block is provided with a groove, and the groove is arranged along the circumferential direction of the needle shaft.

[0014] In an embodiment, the locking assembly comprises a protrusion and a limiting part, the protrusion is arranged on the inner wall of the needle shaft at one end close to the needle tube, the protrusion is arranged along the circumferential direction of the needle shaft and extends along the radial direction towards the shaft center, the limiting part is arranged on the outer wall of the needle tube at one end close to the needle shaft, so that the outer diameter of the limiting part is larger than the outer diameter of the needle tube, one end of the needle tube provided with the limiting part is arranged to slide in the movable cavity, and the limiting part is limited by the protrusion to be separated from the movable cavity.

[0015] In an embodiment, the outer periphery of one end of the needle tube in the movable cavity is provided with a chamfer.

[0016] In an embodiment, the end of the needle shaft away from the needle tube is spherical.

[0017] The utility model discloses still propose a kind of charging device, including the connector as any one of the above.

[0018] In the technical scheme of the utility model, the connector includes a needle tube, a needle shaft and an elastic member, the inner diameter of the movable cavity of the needle shaft is larger than the outer diameter of the needle tube, one end of the needle tube provided with an opening extends into the movable cavity, and the elastic member is in the movable cavity, and the two ends are respectively elastically connected with the needle tube and the needle shaft, when the end of the needle shaft contacts with other structure, the needle shaft is subjected to pressure towards one end of the needle tube, so that it has the tendency of moving towards the needle tube, the elastic member is compressed, and two circuit elements or structures are electrically connected;Since the needle shaft sleeve is arranged outside the needle tube, the moisture, humidity and other liquids directly contacting the conductive part in the needle tube are effectively blocked, the corrosion of the connector is avoided, the conduction of the circuit is affected, the good electrical conductivity of the connector is ensured;In addition, the needle tube and the needle shaft are connected by the locking assembly, on the one hand, the sealing property inside the needle tube can be further improved, and on the other hand, the locking assembly avoids the needle tube and the needle shaft from being separated in the axial direction, even in the case that the connector is subjected to vibration, impact or long-term use, the structural integrity can be ensured, the open circuit is avoided, the structure is more stable, the deviation caused by the loosening of parts is reduced, the good electrical conductivity is ensured, and the quality and reliability of signal transmission are improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described below are only some of the embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0020] Figure 1 The structure schematic diagram of the connector of one embodiment provided by the present application is shown in the figure.

[0021] Figure 2 The cross-sectional structure schematic diagram of the connector of one embodiment provided by the present application is shown in the figure.

[0022] Figure 3 The cross-sectional structure schematic diagram of the connector of another embodiment provided by the present application is shown in the figure.

[0023] Figure 4 The structure schematic diagram of the connector of another embodiment provided by the present application is shown in the figure.

[0024] Figure 5 The cross-sectional structure schematic diagram of the connector of another embodiment provided by the present application is shown in the figure.

[0025] Figure 6 The application structure schematic diagram of the connector provided by the present application is shown in the figure.

[0026] Explanation of the reference numerals:

[0027] 1, connector; 10, needle tube; 11, chamfer; 20, needle shaft; 30, elastic piece; 40, locking assembly; 41, sliding groove; 42, limiting block; 43, groove; 44, protrusion; 45, limiting part; 50, supporting piece;

[0028] 2, circuit board;

[0029] 3, mounting seat.

[0030] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0032] It should be noted that if the embodiments of the utility model have directionality indication (such as up, down, left, right, front, back, etc.), the directionality indication is only used to explain the relative position relationship, movement condition, etc. between components in a certain specific posture, if the specific posture changes, then the directionality indication also changes accordingly.

[0033] In addition, if the embodiments of the utility model have descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, "and / or" or "and / or" appearing throughout the text means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B simultaneously satisfy the scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled persons in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor is it within the protection scope required by the utility model.

[0034] In order to solve the problem that liquid easily enters the inside of part of the connector during use and affects the use performance of the connector, the utility model provides a connector and electronic equipment.

[0035] Please refer to Figure 2 In an embodiment of the utility model, the connector 1 comprises:

[0036] The needle tube 10 has an accommodating cavity with one end open;

[0037] The needle shaft 20 has a movable cavity with one end open, the needle shaft 20 is movably arranged outside the needle tube 10, and the accommodating cavity and the movable cavity are communicated;

[0038] The elastic member 30 is arranged in the accommodating cavity, and the two ends are connected with the inner wall of the needle tube 10 and the inner wall of the needle shaft 20 respectively; and

[0039] The locking assembly 40 is used for connecting the needle tube 10 and the needle shaft 20, so as to limit the needle shaft 20 and the needle tube 10 to be separated along the axial direction.

[0040] The utility model discloses a technical scheme, connector 1 includes needle tube 10, needle shaft 20 and elastic part 30, the movable cavity inside diameter of needle shaft 20 is greater than the outer diameter of needle tube 10, and the one end of needle tube 10 is inserted into movable cavity with opening, and elastic part 30 is in movable cavity, and two ends are respectively with needle tube 10 and needle shaft 20 elastic connection, when the end of needle shaft 20 is contacted with other structure, needle shaft 20 is pressed towards the one end of needle tube 10, makes it have the tendency of moving towards needle tube 10, and elastic part 30 is compressed, and two circuit elements or structure electrically conducts, because needle shaft 20 is set on the outside of needle tube 10, effectively blocks the moisture, humidity and other liquid directly contact the conductive part in needle tube 10, avoids the corrosion of connector 1, influences the conduction of circuit, guarantees that connector 1 has good conductivity, in addition, through locking assembly 40 connects needle tube 10 and needle shaft 20, on the one hand can further needle tube 10 inside the sealing property, on the other hand locking assembly 40 avoids needle tube 10 and needle shaft 20 in the axial separation, even under the condition of vibration, impact or long time use of connector 1, can guarantee the integrity of structure, avoid causing the open circuit, make the structure more stable, reduce the deviation caused by the loosening of part, ensure good electrical conductivity, improve the quality and reliability of signal transmission.

[0041] Specifically, the main body of the needle shaft 20 is cylindrical and has a movable cavity with an open end, the needle tube 10 has a receiving cavity with an open end, and the open end of the needle tube 10 extends into the movable cavity, so that the receiving cavity and the movable cavity are in communication, and the elastic member 30 is arranged in the communicating receiving cavity and movable cavity. The elastic member 30 can be a spring, but the material of the spring is not limited. The material of the needle tube 10 is usually metal, such as brass or beryllium copper. The needle shaft 20 can also be made of brass or beryllium copper, which has good conductivity and fatigue resistance. To improve corrosion resistance, the needle tube 10 and the needle shaft 20 are usually electroplated, such as gold plating or nickel plating, to provide low contact resistance and certain corrosion resistance.

[0042] In the embodiment of the utility model, the outer wall of the needle tube 10 is provided with a support 50 in the circumferential direction, and the support 50 is used to connect the needle tube 10 and the circuit board 2.

[0043] Please refer to Figure 1 and Figure 4 , the support 50 is sleeved on the outer periphery of the needle tube 10 and stably connects the needle tube 10 to the circuit board 2, strengthens the connection between the needle tube 10 and the circuit board 2, prevents the needle tube 10 from being displaced or falling off when subjected to external force, and sets the support 50 as a conductive material to conduct the needle tube 10 and the circuit, that is, the support 50 can not only serve as a mechanical support but also assist in conducting electricity.

[0044] In the embodiment of the utility model, please refer to Figure 3The support 50 is detachably connected with the needle tube 10, the support 50 can be pre-installed on the circuit board 2 and waits for assembly with the needle tube 10, the assembly step is simplified, and when the connector 1 fails, the support 50 can be detached, and the damaged part can be replaced alone, so that the use cost is reduced.

[0045] In the embodiment of the utility model, please refer to Figure 2 The support 50 is integrally formed with the needle tube 10, the structural stability of the connector 1 as a whole is improved, mechanical stress can be better resisted, loosening during use is avoided, the conduction of power is affected, good electrical contact is ensured.

[0046] In the embodiment of the utility model, the locking assembly 40 includes a sliding groove 41 and a limiting block 42, the sliding groove 41 is arranged on the outer periphery of the needle tube 10 and extends along the axial direction of the needle tube 10, the outer diameter of the needle tube 10 is greater than the outer diameter of the sliding groove 41, the limiting block 42 is arranged on the inner wall of the needle shaft 20 and extends along the radial direction towards the axis, and the limiting block 42 slides along the axial direction in the sliding groove 41.

[0047] Please refer to Figure 5 The sliding groove 41 is arranged along the outer periphery of the needle tube 10, which provides a path for the axial movement of the limiting block 42 and limits the movement range of the needle shaft 20 relative to the needle tube 10, since the overall outer diameter of the needle tube 10 is greater than the diameter of the part where the sliding groove 41 is arranged, that is, a "necked-down area" is formed at the position of the sliding groove 41, the limiting block 42 slides along the axial direction in the sliding groove 41, and the distance range of the movement of the needle shaft 20 is the length distance of the necked-down area along the axial direction, which can avoid the needle shaft 20 from falling off the needle tube 10 when subjected to external force, and the sliding groove 41 plays a guiding role for the movement of the limiting block 42, ensures the axial movement of the needle shaft 20, prevents deviation, and maintains the stability of the electrical connection of the connector 1.

[0048] In the embodiment of the utility model, the outer periphery of the needle shaft 20 at the position of the limiting block 42 is provided with a groove 43, and the groove 43 is arranged along the circumferential direction of the needle shaft 20.

[0049] Please refer to Figure 4 And Figure 5 The limiting block 42 is arranged on the inner wall of the movable cavity of the needle shaft 20 and is arranged along the circumferential direction, and the groove 43 is arranged at the outer wall of the needle shaft 20, which can help to disperse the local stress generated when the limiting block 42 is formed by extrusion, avoid cracks or damage of the material of the needle shaft 20 at this position, and also reduce the resistance when the limiting block 42 is formed by inward extrusion, ensure the consistency of the structure, and additionally reduce the overall weight of the needle shaft 20, facilitate the lightweight design of the overall structure.

[0050] In the embodiment of the utility model, locking assembly 40 includes protrusion 44 and limit part 45, protrusion 44 is located in the inner wall of one end of needle shaft 20 close to needle tube 10, protrusion 44 is set along the circumference of needle shaft 20 and extends along the radial direction towards the axis, limit part 45 is located in the outer wall of one end of needle tube 10 close to needle shaft 20, so that the outer diameter of limit part 45 is greater than the outer diameter of needle tube 10, one end of needle tube 10 setting limit part 45 is slidably arranged in the movable cavity, and limit part 45 is limited from the movable cavity by protrusion 44.

[0051] Please refer to Figure 2 And Figure 3 , locking assembly 40 includes protrusion 44 and limit part 45, protrusion 44 is located in the inner wall of the movable cavity and close to one end of needle tube 10, and is set towards the axis, so that the inner diameter of protrusion 44 is less than the inner diameter of the movable cavity, limit part 45 is set on the outer wall of needle tube 10 and is set along the radial direction away from the axis, so that the outer diameter of limit part 45 is greater than the outer diameter of the accommodating cavity, one end of limit part 45 is in the movable cavity, the outer diameter of limit part 45 is less than the inner diameter of the movable cavity and greater than the inner diameter of protrusion 44, that is, when needle shaft 20 tries to separate from needle tube 10, protrusion 44 will block limit part 45, thereby preventing needle tube 10 from separating from needle shaft 20, and the cooperation of protrusion 44 and limit part 45 also allows needle tube 10 to have a certain sliding range in the axis direction inside needle shaft 20, improving the reliability of the connection.

[0052] In the embodiment of the utility model, the outer periphery of one end of needle tube 10 in the movable cavity is provided with a chamfer 11.

[0053] Please refer to Figure 2 、 Figure 3 And Figure 5 , needle tube 10 can be more easily inserted into the movable cavity of needle shaft 20, reducing the resistance during assembly, reducing the wear risk of the contact surface with needle shaft 20, in one embodiment, limit part 45 is provided on one end of needle tube 10 in the movable cavity, and chamfer 11 is provided on the end portion of limit part 45.

[0054] In the embodiment of the utility model, the end of needle shaft 20 away from needle tube 10 is spherical, and a metal material with good conductivity, such as copper or gold-plated copper, is used, the spherical end can contact the mating piece in multiple directions, maintaining good electrical conductivity, in addition, the surface of the spherical end is arc-shaped, the friction during plugging is small, which helps to prolong the service life of the contact point.

[0055] The utility model also proposes a charging device, please refer to Figure 6The charging device comprises a circuit board 2, a mounting seat 3 and a connector 1, the specific structure of the connector 1 is referred to the above-mentioned embodiments, since the charging device adopts all the technical solutions of the above-mentioned embodiments, thus at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here. Wherein, the connector 1 further comprises a supporting piece 50, the supporting piece 50 is fixedly connected with the circuit board 2, so as to fix the needle tube 10, and the mounting seat 3 is sleeved outside the needle shaft 20.

[0056] The above-mentioned is only an exemplary embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation made by using the utility model specification and the attached drawings, or direct / indirect application in other related technical fields is included in the patent protection range of the utility model.

Claims

1. A connector characterized by comprising: The application relates to a connector. The connector comprises a needle tube with an open accommodating cavity at one end; a needle shaft with an open movable cavity at one end, the needle shaft movably sleeving the needle tube, and the accommodating cavity and the movable cavity being in communication; an elastic member arranged in the accommodating cavity and connected with the inner wall of the needle tube and the inner wall of the needle shaft at two ends; and a locking assembly for connecting the needle tube and the needle shaft to limit the needle shaft from being separated from the needle tube in the axial direction. The outer wall of the needle tube is provided with a support along the circumference, and the support is used for connecting the needle tube and a circuit board. The support and the needle tube are detachably connected. The support and the needle tube are integrally formed.

2. The connector of claim 1, wherein, The locking assembly comprises a sliding groove and a limiting block, the sliding groove is arranged on the outer circumference of the needle tube and extends in the axial direction of the needle tube, the outer diameter of the needle tube is larger than the outer diameter of the sliding groove, the limiting block is arranged on the inner wall of the needle shaft and extends in the radial direction towards the shaft center, and the limiting block slides in the axial direction in the sliding groove.

3. The connector of claim 2, wherein, The outer circumference of the needle shaft at the position of the limiting block is provided with a groove, and the groove is arranged along the circumference of the needle shaft.

4. The connector of claim 2, wherein, The locking assembly comprises a protrusion and a limiting part, the protrusion is arranged on the inner wall of one end of the needle shaft close to the needle tube, the protrusion is arranged along the circumference of the needle shaft and extends in the radial direction towards the shaft center, the limiting part is arranged on the outer wall of one end of the needle tube close to the needle shaft, so that the outer diameter of the limiting part is larger than the outer diameter of the needle tube, one end of the needle tube provided with the limiting part is slidably arranged in the movable cavity, and the limiting part is limited by the protrusion to be separated from the movable cavity.

5. The connector of any one of claims 1 to 4, wherein The outer circumference of one end of the needle tube in the movable cavity is provided with a chamfer.

6. The connector of claim 5, wherein, The end of the needle shaft away from the needle tube is spherical.

7. The connector of any one of claims 1 to 4, wherein The application further relates to a connector comprising any one of the connectors in claims 1 to 9.

8. The connector of claim 1, wherein ​ 9. The connector of claim 1, wherein, ​ 10. A charging device, characterized by ​

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