Wireless charger
By employing a limiting design with conductive plugs and socket sleeves in the wireless charger, the problem of unstable connection between the charging coil and the circuit board is solved, achieving higher connection stability and reliability, preventing poor contact, and improving the practicality of the wireless charger.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- XUANCHENG LUXSHARE PRECISION IND CO LTD
- Filing Date
- 2026-03-09
- Publication Date
- 2026-06-02
AI Technical Summary
The connection between the charging coil and the circuit board in existing wireless chargers is unstable, and they are prone to relative rotation or movement, resulting in poor contact and affecting normal use.
The design employs a conductive plug and a socket sleeve. The socket sleeve and the conductive plug are equipped with limiting grooves and positioning blocks. The limiting blocks are locked in the limiting grooves to prevent the conductive plug from rotating or shifting in the socket sleeve, thereby enhancing the connection stability.
It improves the practicality and reliability of wireless chargers, prevents poor contact, enhances the connection stability between the conductive plug and the socket, and avoids wear and circuit breakage caused by rotation.
Smart Images
Figure CN122137136A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of charging device technology, and more particularly to a wireless charger. Background Technology
[0002] Wireless charging, as a relatively new charging method in recent years, is gradually becoming a part of everyday electronic device charging. From electric toothbrushes to smart bracelets and mobile phones, the application scenarios of wireless charging are increasing. It not only simplifies the charging process but also frees users from the constraints of charging cables.
[0003] Wireless chargers generally consist of a housing, a circuit board, and a charging coil. The circuit board and charging coil are installed in the housing. The circuit board is connected to an external power source and is used to supply power to the charging coil. The charging coil is usually connected to the circuit board using a crimp connector. However, the crimp connector structure of existing wireless chargers is relatively simple and does not provide sufficient fixation for the charging coil wires. After installation, it is easy for the coil to rotate or move relative to the circuit board, resulting in an unstable connection between the charging coil and the circuit board, which leads to poor contact and seriously affects the normal use of the wireless charger. Summary of the Invention
[0004] The purpose of this invention is to provide a wireless charger with good stability and high reliability in the connection between the internal conductive plug and the circuit board, and good practicality.
[0005] To achieve this objective, the present invention adopts the following technical solution:
[0006] Wireless charger, including:
[0007] Charging coil;
[0008] A wire is connected to the charging coil;
[0009] A circuit board, which is connected to an external power source, and a connector sleeve is provided on the circuit board;
[0010] A conductive plug is electrically connected to the wire. Both the plug sleeve and the conductive plug have a first positioning groove on one and a positioning block on the other. The conductive plug is inserted into the plug sleeve and electrically connected to the plug sleeve. Along the insertion direction of the conductive plug, the positioning block is inserted into the first positioning groove for limitation.
[0011] Preferably, the conductive plug is provided with an anti-disengagement block, which abuts against the end face of the plug sleeve along the pull-out direction of the conductive plug.
[0012] Preferably, the conductive plug includes a conductive part, one side of which is connected to the wire, and the other side of which is provided with a conductive sidewall, which abuts against the inner wall of the plug sleeve.
[0013] Preferably, a limiting block is provided on one of the conductive sidewalls and the inner wall surface of the plug sleeve, and a limiting groove is provided on the other, with the limiting block being engaged in the limiting groove.
[0014] Preferably, the conductive part includes a connecting plate and an abutting plate spaced apart from each other, the connecting plate being fixedly connected to the wire, and the abutting plate having a conductive sidewall on the side opposite to the connecting plate.
[0015] Preferably, the abutment plate is connected to an extension plate, which abuts against the end face of the plug sleeve along the insertion direction of the conductive plug.
[0016] Preferably, the conductive plug is provided with two conductive parts, which are symmetrically connected to the wire.
[0017] Preferably, the wireless charger further includes a housing, which includes a mounting base and a top cover. The circuit board is disposed on the mounting base, and the top cover covers the charging coil and the circuit board. The top cover is detachably connected to the mounting base.
[0018] Preferably, the mounting base and the circuit board each have a positioning flange on one and a second positioning groove on the other, with the positioning flange engaging with the second positioning groove.
[0019] Preferably, one of the mounting bases and the top cover is provided with a slot, and the other is provided with a plug rod, which is inserted into the slot.
[0020] The beneficial effects of this invention are as follows:
[0021] The wireless charger provided by this invention includes a charging coil, a circuit board, and a conductive plug. The circuit board is connected to an external power source. Since the conductive plug is electrically connected to a wire, when the conductive plug is inserted into the insertion sleeve, the conductive plug and the insertion sleeve are electrically connected. Therefore, the circuit board can supply power to the charging coil, thereby generating a magnetic field to achieve normal wireless charging function. The insertion sleeve and the conductive plug are provided with a first positioning groove on one and a positioning block on the other. Since the positioning block is limited and inserted into the first positioning groove along the insertion direction of the conductive plug when the conductive plug is inserted into the insertion sleeve, the first positioning groove and the positioning block limit the conductive plug, preventing the conductive plug from rotating after being inserted into the insertion sleeve. This avoids the contact problem caused by wear due to the rotation of the conductive plug, and greatly improves the practicality and reliability of the wireless charger. Attached Figure Description
[0022] Figure 1 This is an exploded view of the wireless charger provided in a specific embodiment of the present invention;
[0023] Figure 2 This is a schematic diagram of the structure of the charging coil and conductive plug provided in a specific embodiment of the present invention;
[0024] Figure 3 This is a schematic diagram of the structure of the plug sleeve provided in a specific embodiment of the present invention.
[0025] In the picture:
[0026] 1-Charging coil;
[0027] 2-Wire;
[0028] 3-Circuit board; 31-Insertion sleeve; 311-First positioning groove; 312-Limiting groove; 32-Positioning flange;
[0029] 4-Conductive plug; 41-Positioning block; 42-Anti-detachment block; 43-Conductive part; 431-Connecting plate; 432-Abutting plate; 433-Limiting block; 434-Extension plate;
[0030] 5-Mounting base; 51-Second positioning groove; 52-Mounting column. Detailed Implementation
[0031] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.
[0032] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0033] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0034] In the description of this embodiment, the terms "upper," "lower," "right," and "left," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.
[0035] like Figures 1 to 3As shown, the present invention provides a wireless charger, which includes a charging coil 1, a wire 2, a circuit board 3, and a conductive plug 4. The wire 2 is connected to the charging coil 1; the circuit board 3 is connected to an external power source, and a plug sleeve 31 is provided on the circuit board 3; the conductive plug 4 is electrically connected to the wire 2, and the conductive plug 4 is provided with a conductive sidewall. On the conductive sidewall and the inner wall surface of the plug sleeve 31, one is provided with a limiting block 433 and the other is provided with a limiting groove 312. When the conductive plug 4 is inserted into the plug sleeve 31, the limiting block 433 is engaged in the limiting groove 312, and the conductive sidewall is electrically connected to the inner wall surface of the plug sleeve 31. Specifically, since the conductive plug 4 is electrically connected to the wire 2, when the conductive plug 4 is inserted into the plug sleeve 31, the conductive sidewall is electrically connected to the inner wall of the plug sleeve 31. Therefore, the circuit board 3 can supply power to the charging coil 1, thereby generating a magnetic field and realizing the normal wireless charging function. Since the limiting block 433 on the conductive sidewall is locked in the limiting groove 312 when the conductive plug 4 is inserted into the plug sleeve 31, the limiting groove 312 plays a role in limiting and securing the conductive plug 4 through the limiting block 433, preventing the conductive plug 4 from rotating or shifting in the plug sleeve 31 of the circuit board 3, avoiding poor contact between the conductive plug 4 and the plug sleeve 31 due to wear caused by rotation. At the same time, the locking cooperation between the limiting groove 312 and the limiting block 433 can also enhance the stability of the connection between the conductive plug 4 and the plug sleeve 31, preventing the conductive plug 4 from being accidentally pulled out and causing the circuit to break, thereby greatly improving the practicality and stability of the wireless charger.
[0036] In this embodiment, a plurality of limiting blocks 433 are protruding on the conductive sidewall, and a plurality of limiting grooves 312 are provided on the inner wall surface of the plug sleeve 31 corresponding to the limiting blocks 433. The limiting blocks 433 are made of rubber, which can increase the friction between the conductive plug 4 and the plug sleeve 31, thereby further improving the stability of the connection between the conductive plug 4 and the circuit board 3. In another embodiment, the limiting blocks 433 are made of a rigid material such as plastic.
[0037] It is understood that the charging coil 1 has two ends, namely the positive end and the negative end, and both ends are connected to wires 2; corresponding to the two conductive plugs 4 on the two wires 2, two plug sleeves 31 are provided on the circuit board 3, and each conductive plug 4 is inserted into one plug sleeve 31.
[0038] Furthermore, such as Figure 2 and Figure 3As shown, the plug sleeve 31 and the conductive plug 4 are provided with a first positioning groove 311 and a positioning block 41, respectively. The positioning block 41 is inserted into the first positioning groove 311 along the insertion direction of the conductive plug 4. Therefore, when the conductive plug 4 is inserted into the plug sleeve 31, the first positioning groove 311 limits the conductive plug 4 through the positioning block 41, preventing the conductive plug 4 from rotating after being inserted into the plug sleeve 31. In this embodiment, the upper end face of the plug sleeve 31 is provided with the first positioning groove 311, and the conductive plug 4 is provided with the positioning block 41.
[0039] To further improve the stability and reliability of the connection between circuit board 3 and conductive plug 4, such as Figure 2 As shown, the conductive plug 4 is provided with an anti-disengagement block 42, which abuts against the end face of the insertion sleeve 31 along the pull-out direction of the conductive plug 4. In this embodiment, when the conductive plug 4 is inserted into the insertion sleeve 31, the anti-disengagement block 42 extends from the bottom end of the insertion sleeve 31 and protrudes beyond the outer diameter of the insertion sleeve 31, so the anti-disengagement block 42 abuts against the bottom end face of the insertion sleeve 31.
[0040] The specific structure of the conductive plug 4 can be set according to the actual situation, as long as it ensures stable insertion with the plug sleeve 31 and easy disassembly and assembly; in this embodiment, such as Figures 1 to 3 As shown, the conductive plug 4 includes a conductive part 43, one side of which is connected to the wire 2, and a conductive sidewall is disposed on the other side of the conductive part 43. The conductive part 43 drives the conductive sidewall to abut against the inner wall surface of the plug sleeve 31.
[0041] Specifically, the conductive part 43 includes a connecting plate 431 and an abutment plate 432 spaced apart from each other. The connecting plate 431 is fixedly connected to the wire 2, and the abutment plate 432 has a conductive sidewall on the side facing away from the connecting plate 431. In this embodiment, as... Figure 2 As shown, the connecting plate 431 and the abutting plate 432 are U-shaped and thus elastically connected. The side of the abutting plate 432 facing away from the connecting plate 431 is a conductive sidewall. When the conductive plug 4 is inserted into place, the abutting plate 432 abuts against the inner wall of the insertion sleeve 31 under the action of the elastic force of the connecting plate 431, thereby making the conductive sidewall close to the inner wall of the insertion sleeve 31.
[0042] like Figure 2 As shown, the conductive plug 4 is provided with two conductive parts 43, which are symmetrically connected to the wire 2. The symmetrically arranged conductive parts 43 can maintain the stability of the insertion and engagement between the conductive plug 4 and the plug sleeve 31, and at the same time increase the electrical contact area between the conductive plug 4 and the plug sleeve 31.
[0043] In this embodiment, two conductive parts 43 are symmetrically arranged, and the connecting plates 431 of the two conductive parts 43 are interconnected and both connected to the wire 2. The limiting block 433 is disposed on the conductive sidewall of the abutment plate 432, and the anti-disengagement block 42 is disposed at the bottom end of the conductive sidewall. The conductive parts 43 are elastic, so when inserting the conductive plug 4, the operator needs to squeeze the two conductive parts 43 from both sides to deform them and insert the entire conductive plug 4 into the insertion sleeve 31. After insertion, the limiting block 433 is locked in the limiting groove 312, and the anti-disengagement block 42 extends out of the bottom end face of the insertion sleeve 31 and abuts against the bottom end face of the insertion sleeve 31. It can be understood that the connecting plate 431, the abutment plate 432, and the insertion sleeve 31 are all made of conductive material.
[0044] like Figure 2 and Figure 3 As shown, the abutment plate 432 is connected to the extension plate 434. Along the insertion direction of the conductive plug 4, the extension plate 434 abuts against the end face of the insertion sleeve 31. The extension plate 434 plays a positioning role in the insertion of the conductive plug 4. When the extension plate 434 abuts against the upper end face of the insertion sleeve 31, it indicates that the conductive plug 4 has been inserted into place, preventing the conductive plug 4 from being over-inserted into the insertion sleeve 31 and damaging the internal circuit structure. In this embodiment, the positioning block 41 is disposed on the lower surface of the extension plate 434. When the conductive plug 4 is inserted into place, the positioning block 41 is inserted into the first positioning groove 311. The connecting plate 431, the abutment plate 432 and the extension plate 434 are integrally formed.
[0045] like Figure 1 As shown, the wireless charger also includes a housing, which comprises a mounting base 5 and a top cover. The circuit board 3 is mounted on the mounting base 5, and the top cover covers the charging coil 1 and the circuit board 3. The top cover is detachably connected to the mounting base 5. The housing protects the charging coil 1 and the circuit board 3. When using the wireless charger, the device to be charged can be placed on the top cover for convenient charging. The specific connection method between the top cover and the mounting base 5 can be a snap-fit connection, a bolt connection, or an adhesive connection, etc. No specific limitation is made here.
[0046] Both the mounting base 5 and the circuit board 3 have a positioning flange 32 on one and a second positioning groove 51 on the other. The positioning flange 32 is engaged with the second positioning groove 51. The engagement of the positioning flange 32 and the second positioning groove 51 facilitates the installation of the circuit board 3 and improves the installation stability of the circuit board 3 on the mounting base 5. In this embodiment, as shown... Figure 1 As shown, the edge of the circuit board 3 is provided with a positioning flange 32 in the radial direction, and the mounting base 5 is provided with a second positioning groove 51 that matches the positioning flange 32.
[0047] Both the mounting base 5 and the top cover have a slot on one and a connecting rod on the other. The connecting rod is inserted into the slot. The top cover and mounting base 5 are quickly positioned and installed through the engagement of the slot and the connecting rod, thus reducing the assembly difficulty of the mounting base 5 and the top cover. In this embodiment, as... Figure 1 As shown, mounting posts 52 are provided at the four corners of the mounting base 5, and a slot is provided at the center of the mounting post 52. A plug-in rod matching the slot is provided on the top cover.
[0048] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.
Claims
1. A wireless charger, characterized in that, include: Charging coil; A wire is connected to the charging coil; A circuit board, which is connected to an external power source, and a connector sleeve is provided on the circuit board; A conductive plug is electrically connected to the wire. Both the plug sleeve and the conductive plug have a first positioning groove on one and a positioning block on the other. The conductive plug is inserted into the plug sleeve and electrically connected to the plug sleeve. Along the insertion direction of the conductive plug, the positioning block is inserted into the first positioning groove for limitation.
2. The wireless charger according to claim 1, characterized in that, The conductive plug is provided with an anti-disengagement block, which abuts against the end face of the plug sleeve along the pull-out direction of the conductive plug.
3. The wireless charger according to claim 1, characterized in that, The conductive plug includes a conductive part, one side of which is connected to the wire, and the other side of which is provided with a conductive sidewall, which abuts against the inner wall surface of the plug sleeve.
4. The wireless charger according to claim 3, characterized in that, On both the conductive sidewall and the inner wall of the insertion sleeve, a limiting block is provided on one and a limiting groove is provided on the other, with the limiting block being engaged in the limiting groove.
5. The wireless charger according to claim 3, characterized in that, The conductive part includes a connecting plate and an abutment plate spaced apart from each other. The connecting plate is fixedly connected to the wire, and the abutment plate has a conductive sidewall on the side opposite to the connecting plate.
6. The wireless charger according to claim 5, characterized in that, The abutment plate is connected to an extension plate, which abuts against the end face of the plug sleeve along the insertion direction of the conductive plug.
7. The wireless charger according to claim 3, characterized in that, The conductive plug is provided with two conductive parts, which are symmetrically connected to the wire.
8. The wireless charger according to any one of claims 1-7, characterized in that, The wireless charger also includes a housing, which includes a mounting base and a top cover. The circuit board is disposed on the mounting base, and the top cover covers the charging coil and the circuit board. The top cover is detachably connected to the mounting base.
9. The wireless charger according to claim 8, characterized in that, Both the mounting base and the circuit board have a positioning flange on one and a second positioning groove on the other, with the positioning flange engaging with the second positioning groove.
10. The wireless charger according to claim 8, characterized in that, Both the mounting base and the top cover have a slot on one and a plug-in rod on the other, with the plug-in rod inserted into the slot.