Contact structure of wireless charging contact electrode

Abstract

The utility model discloses a contact structure of a wireless charging contact electrode. The contact structure comprises a contact, a first connector, a second connector, a spring, a positioning sleeve, a shell and an end cover, the positioning sleeve can slide along the interior of the shell, the contact partially penetrates through the shell and is connected with one end of the first connector, the other end of the first connector is provided with a first terminal, and the spring is used for applying elastic force acting towards the contact to the positioning sleeve; one end, close to the first connector, of the second connector is provided with a second terminal, the second terminal partially extends into the accommodating cavity, and the first terminal is used for being connected with the second terminal in an abutting mode along with pushing of the contact. According to the utility model, accidental conduction caused by slight contact or vibration is effectively prevented, and the safety and reliability of equipment are enhanced; moreover, by adopting a gradual contact structure, large current impact generated by instant conduction can be avoided, so that the circuit and electronic components are protected, and the service life of equipment is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of wireless charging contact electrodes, and more particularly to a contact structure for a wireless charging contact electrode. Background Technology

[0002] With the development of wireless charging technology, more and more electronic devices are adopting this convenient charging method. Wireless charging not only improves the user experience, but also reduces wear and tear on charging interfaces and cables.

[0003] In existing technologies, the contact electrodes of traditional wireless chargers are generally of a through-hole structure. When the contact electrodes come into contact with conductive surfaces, a large current surge is easily generated, which can damage the electronic components inside the electronic device's circuitry and affect the reliability and lifespan of the wireless charger.

[0004] Therefore, existing technologies have shortcomings and need to be improved. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a contact structure for a wireless charging contact electrode that reduces current surges and improves the service life of wireless charging.

[0006] To achieve this objective, the present invention adopts the following technical solution: a contact structure for a wireless charging contact electrode, comprising a contact, a first connector, a second connector, a spring, a positioning sleeve, a housing, and an end cap;

[0007] The housing has an internal accommodating chamber, and the positioning sleeve is disposed in the accommodating chamber. The positioning sleeve can slide along the accommodating chamber. The end of the positioning sleeve is provided with a positioning step. The first connector is disposed in the positioning step. The contact portion passes through the housing and is connected to one end of the first connector. The other end of the first connector is provided with a first terminal.

[0008] The end cap is threadedly connected to the housing. The spring is located in the accommodating cavity. One end of the spring abuts against the positioning sleeve, and the other end of the spring abuts against the end cap. The spring is used to apply a spring force to the positioning sleeve in the direction of the contact.

[0009] The second connector is disposed on the end cap, and the second connector has a second terminal at one end near the first connector. The second terminal extends into the receiving cavity, and the first terminal is used to conduct and abut against the second terminal as the contact is pushed.

[0010] Using the above technical solution, in the contact structure of the wireless charging contact electrode, the housing is provided with a guide hole on the side away from the end cover, the guide hole is used for the contact to extend into the accommodating cavity, and a limiting plate is provided at the end of the contact near the first connector.

[0011] In the contact structure of the wireless charging contact electrode described above, the positioning sleeve is provided with a limiting shoulder, and the limiting shoulder abuts against the spring.

[0012] Using the above technical solutions, in the contact structure of the wireless charging contact electrode, the positioning step is located inside the limiting shoulder.

[0013] Using the above technical solutions, in the contact structure of the wireless charging contact electrode, the end cover is provided with a positioning seat, the positioning seat is connected to the end cover by screws, and the second connector is disposed on the positioning seat.

[0014] In the contact structure of the wireless charging contact electrode described above, the end of the contact is provided with an arc structure.

[0015] In the contact structure of the wireless charging contact electrode described above, the contact tip is made of lead-free copper.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] In the initial state where the contact is not in contact with the charging device, the positioning sleeve is in its initial position under the action of the spring. At this time, the first terminal and the second terminal are not in contact, and the circuit is not connected. When the contact begins to contact the wireless charger, due to the external force, the contact gradually moves into the housing. As the contact pushes, the positioning sleeve slides along the direction of the second connector in the housing cavity. At this time, the spring is compressed, and the elastic force gradually increases until the first terminal gradually approaches and contacts the second terminal, forming a circuit connection and realizing charging. This effectively avoids the large current impact caused by instantaneous conduction, prevents damage to the electronic components of electronic devices, and extends the service life of the device. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0022] Figure 3 This is a schematic diagram of the exploded structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the exploded structure from another perspective of this utility model. Detailed Implementation

[0024] To make the utility model's objectives, features, and advantages more apparent and understandable, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0025] In the description of this utility model, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component centrally located at the same time.

[0026] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0027] like Figures 1 to 4As shown, this utility model embodiment provides a contact structure for a wireless charging contact electrode, including a contact 1, a first connector 21, a second connector 22, a spring 3, a positioning sleeve 4, a housing 5, and an end cap 6. The housing 5 has an internal accommodating chamber 50, and the positioning sleeve 4 is disposed within the accommodating chamber 50. The positioning sleeve 4 can slide along the accommodating chamber 50. The end of the positioning sleeve 4 is provided with a positioning step 40. The first connector 21 is disposed within the positioning step 40. The contact 1 partially passes through the housing 5 and is connected to one end of the first connector 21. The other end of the first connector 21 is provided with a first terminal 21. 1. The end cap 6 is connected to the housing 5 by a thread. The spring 3 is located in the accommodating chamber 50. One end of the spring 3 abuts against the positioning sleeve 4, and the other end of the spring 3 abuts against the end cap 6. The spring 3 is used to apply a spring force to the positioning sleeve 4 in the direction of the contact 1. The second connector 22 is provided on the end cap 6, and the second connector 22 is provided with a second terminal 221 at one end near the first connector 21. The second terminal 221 extends into the accommodating chamber 50. The first terminal 211 is used to conduct and abut against the second terminal 221 as the contact 1 is pushed. When contact 1 is in its initial state and not in contact with the charging device, the positioning sleeve 4 is in its initial position under the action of spring 3. At this time, the first terminal 211 and the second terminal 221 are not in contact, and the circuit is not connected. When contact 1 begins to contact the wireless charger, due to the action of external force, contact 1 gradually moves into the housing 5. As contact 1 pushes, the positioning sleeve 4 slides along the direction of the second connector 22 in the accommodating chamber 50 of the housing 5. At this time, spring 3 is compressed, and the elastic force gradually increases until the first terminal 211 gradually approaches and contacts the second terminal 221, forming a circuit connection and realizing charging. When the electronic device is removed from the wireless charger, the elastic force of spring 3 pushes the positioning sleeve 4 and contact 1 back to the initial position, the first terminal 211 and the second terminal 221 separate, the circuit is broken, and the charging process ends. Since the first terminal 211 and the second terminal 221 are separate in the initial state, they will only conduct when sufficient external force is applied, which effectively prevents accidental conduction caused by slight contact or vibration, and enhances the safety and reliability of the equipment. In addition, the use of a step-by-step contact structure can avoid the large current surge caused by instantaneous conduction, prevent damage to the electronic components of the electronic equipment, and extend the service life of the equipment.

[0028] like Figure 2 and Figure 3As shown, further, the housing 5 has a guide hole 51 on the side away from the end cap 6. The guide hole 51 is used for the contact 1 to extend into the receiving chamber 50. A limiting plate 11 is provided at the end of the contact 1 near the first connector 21. The guide hole 51 provides a guiding path for the contact 1 during insertion, preventing the contact 1 from deviating and improving the accuracy and reliability of the contact. The limiting plate 11 prevents the contact 1 from slipping out of the housing 5.

[0029] like Figure 2 and Figure 3 As shown, the positioning sleeve 4 is further provided with a limiting shoulder 41, which abuts against the spring 3. The limiting shoulder 41 improves the installation stability of the spring 3 and prevents the spring 3 from shifting or tilting when under force. It should be noted that the positioning step 40 is located inside the limiting shoulder 41.

[0030] like Figure 4 As shown, the end cap 6 is further provided with a positioning seat 61, which is connected to the end cap 6 by screws, and the second connector 22 is provided on the positioning seat 61.

[0031] like Figure 1 As shown, the end of the contact 1 is provided with an arc structure 12. This arrangement can reduce the friction between the contact 1 and the contact surface, reduce wear, and thus extend the service life of the contact 1.

[0032] Furthermore, the contact 1 is made of lead-free copper. Lead-free copper has good conductivity, which can significantly improve current transmission efficiency, reduce power loss, and improve the overall performance of wireless charging; in addition, lead-free copper has high mechanical strength and wear resistance, and can withstand frequent insertion and removal and contact operations, effectively extending the service life of contact 1.

[0033] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A contact structure for a wireless charging contact electrode, characterized in that, Includes contacts, a first connector, a second connector, a spring, a positioning sleeve, a housing, and an end cap; The housing has an internal accommodating chamber, and the positioning sleeve is disposed in the accommodating chamber. The positioning sleeve can slide along the accommodating chamber. The end of the positioning sleeve is provided with a positioning step. The first connector is disposed in the positioning step. The contact portion passes through the housing and is connected to one end of the first connector. The other end of the first connector is provided with a first terminal. The end cap is threadedly connected to the housing. The spring is located in the accommodating cavity. One end of the spring abuts against the positioning sleeve, and the other end of the spring abuts against the end cap. The spring is used to apply a spring force to the positioning sleeve in the direction of the contact. The second connector is disposed on the end cap, and the second connector has a second terminal at one end near the first connector. The second terminal extends into the receiving cavity, and the first terminal is used to conduct and abut against the second terminal as the contact is pushed.

2. The contact structure of the wireless charging contact electrode according to claim 1, characterized in that, The housing has a guide hole on the side away from the end cap, the guide hole is used for the contact to extend into the receiving cavity, and a limiting plate is provided on the end of the contact near the first connector.

3. The contact structure of the wireless charging contact electrode according to claim 1, characterized in that, The positioning sleeve is provided with a limiting shoulder, which abuts against the spring.

4. The contact structure of the wireless charging contact electrode according to claim 3, characterized in that, The positioning step is located inside the limiting shoulder.

5. The contact structure of the wireless charging contact electrode according to claim 1, characterized in that, The end cap is provided with a positioning seat, which is connected to the end cap by screws, and the second connector is provided on the positioning seat.

6. The contact structure of the wireless charging contact electrode according to claim 1, characterized in that, The contact end has an arc structure.

7. The contact structure of the wireless charging contact electrode according to claim 1, characterized in that, The contact is made of lead-free copper.

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