Magnetic charging head
By using a PCB board instead of contact terminals in the magnetic charging head, the impedance is reduced, the charging efficiency is improved, and the heat generation is reduced, thus solving the problems of high impedance, low charging efficiency, and low yield rate in existing magnetic charging heads.
Patent Information
- Application Number
- CN202423141143.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-17
AI Technical Summary
Existing magnetic charging heads use contact terminals for connection, resulting in high impedance, low charging efficiency, severe heat generation, and low yield.
The traditional contact terminal connection method is replaced by a PCB board. The PCB board is fixed in the mounting bracket, with one end electrically connected to the magnetic head and the other end extending into the internal circuit of the charging head. The impedance is reduced by the fine copper foil circuit design, which improves charging efficiency and reduces heat generation.
By replacing contact terminals with PCB boards, the internal impedance of the charging head is reduced, charging efficiency is improved, energy loss and heat generation are reduced, and product yield is increased.
Smart Images
Figure CN223539914U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electronic technology, and in particular to a magnetic charging head. Background Technology
[0002] A magnetic charger is a device that achieves charging connection through magnetic attraction. It typically consists of a charging head with a magnet and a charging cable that connects to a power source.
[0003] In current technology, magnetic charging heads generally use contact terminals (i.e., copper sheets) as the connecting material, which causes the charging head to generate greater resistance, reduces charging efficiency, slows down the charging speed, and causes energy loss and heat generation during the charging process, resulting in a relatively low yield rate for magnetic chargers. Utility Model Content
[0004] The purpose of this utility model is to provide a magnetic charging head to solve the technical problem that the internal connection of the charging head uses contact terminals, resulting in high impedance and low yield rate.
[0005] To achieve the above objectives, this utility model provides a magnetic charging head, including a ring magnet, a mounting bracket, a magnetic head, and a PCB board. The ring magnet has a first mounting hole, the mounting bracket has a second mounting hole, the mounting bracket is sleeved in the first mounting hole, and the PCB board is fixed in the second mounting hole.
[0006] The mounting bracket has a mounting groove on its end face that communicates with the second mounting hole. The magnetic head is embedded in the mounting groove. One end of the PCB board is electrically connected to the magnetic head, and the other end of the PCB board extends outward from the second mounting hole.
[0007] In the magnetic charging head of this application, the PCB board is inserted into the surface of the magnetic head or soldered to the surface of the magnetic head.
[0008] In the magnetic charging head of this application, the magnetic charging head includes a fixing member, the fixing member is provided with a third mounting hole, the fixing member is embedded in the second mounting hole, and the PCB board is embedded in the third mounting hole.
[0009] In the magnetic charging head of this application, the outer wall of the fixing member is provided with a protrusion, and the inner wall of the second mounting hole is provided with a groove; when the fixing member is embedded in the second mounting hole, the protrusion is embedded in the groove.
[0010] In the magnetic charging head of this application, the fixing component is a fixing adhesive, which fills the second mounting hole.
[0011] In the magnetic charging head of this application, the mounting bracket includes a first support portion and a second support portion. The second support portion is sleeved on the end of the first support portion away from the mounting groove. The first support portion is sleeved in the first mounting hole. The second support portion abuts against the annular magnet.
[0012] In the magnetic charging head of this application, the first support portion and the second support portion are integrally formed.
[0013] In the magnetic charging head of this application, the annular magnet is connected and fixed to the second support portion by an adhesive component.
[0014] This utility model provides a magnetic charging head, the advantages of which are:
[0015] This utility model's magnetic charging head mainly consists of a ring magnet, a mounting bracket, a magnetic head, and a PCB board. The ring magnet provides magnetic force to facilitate attraction with the corresponding magnetic component on the charging device. The mounting bracket is a supporting structure used to fix the ring magnet, magnetic head, and PCB board. The magnetic head is the charging interface, which connects to the corresponding interface on the charging device to achieve the charging function. The PCB board is a circuit connection component, replacing the traditional contact terminal connection method. The PCB board is fixed in the second mounting hole of the mounting bracket, with one end electrically connected to the magnetic head and the other end extending outward from the second mounting hole to connect to the internal circuitry or other components of the charging head. This utility model uses a PCB board as the circuit connection component, replacing the traditional contact terminal connection method. Because the copper foil circuitry on the PCB board is more refined, and the conductivity of copper foil is generally better than that of bare contact terminals, the PCB board can reduce the internal impedance of the charging head, improve charging efficiency, and increase product yield. Furthermore, the reduced impedance reduces energy loss during power transmission, which is usually converted into heat. Therefore, by using a PCB board instead of contact terminals, the heat generated by the charging head during charging is reduced. In summary, this invention uses a PCB board to replace the traditional contact terminal connection method, effectively solving the problems of high impedance, low charging efficiency, severe heat generation, and low yield rate in existing magnetic charging heads. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the structure of the magnetic charging head provided in an embodiment of the present invention;
[0018] Figure 2 An exploded view of the magnetic charging head provided in this embodiment of the utility model;
[0019] Figure 3 A cross-sectional schematic diagram of the magnetic charging head provided in an embodiment of this utility model;
[0020] Figure 4 A cross-sectional schematic diagram of the mounting support provided in an embodiment of this utility model.
[0021] The markings in the diagram are as follows: 1. Ring magnet; 11. First mounting hole; 2. Mounting support; 21. Second mounting hole; 22. Mounting groove; 23. Groove; 24. First support; 25. Second support; 3. Magnetic head; 4. PCB board; 5. Fixing component; 51. Third mounting hole; 52. Protrusion; 100. Magnetic charging head. Detailed Implementation
[0022] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.
[0023] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "inner", "outer" and other terms used in this utility model to indicate the orientation or positional relationship are based on the positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device and components 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.
[0024] In the description of this utility model, it should be understood that the terms "first," "second," etc., are used to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this utility model, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information.
[0025] like Figures 1 to 4As shown, this utility model embodiment provides a magnetic charging head 100, including a ring magnet 1, a mounting bracket 2, a magnetic head 3, and a PCB board 4. The ring magnet 1 has a first mounting hole 11, and the mounting bracket 2 has a second mounting hole 21. The mounting bracket 2 is sleeved in the first mounting hole 11, and the PCB board 4 is fixed in the second mounting hole 21. The end face of the mounting bracket 2 has a mounting groove 22 communicating with the second mounting hole 21. The magnetic head 3 is embedded in the mounting groove 22. One end of the PCB board 4 is electrically connected to the magnetic head 3, and the other end of the PCB board 4 extends outward from the second mounting hole 21.
[0026] During installation, the magnetic head 3 is inserted into the mounting groove 22 on the end face of the mounting bracket 2 to fix its position. One end of the PCB board 4 is inserted into the second mounting hole 21 and aligned with the magnetic head 3 to fix the PCB board 4 in the mounting bracket 2 and electrically connect it to the magnetic head 3. Then, the mounting bracket 2 is fitted into the first mounting hole 11 of the ring magnet 1 to ensure that the relative position of the ring magnet 1 and the mounting bracket 2 is fixed, thus completing the assembly of the magnetic charging head 100. The various components of this magnetic charging head 100 adopt a modular design, and assembly can be completed through steps such as fitting, embedding, and fixing, which has the characteristics of easy assembly and stable reliability.
[0027] Based on the above technical solution, the magnetic charging head 100 of this embodiment mainly consists of a ring magnet 1, a mounting bracket 2, a magnetic head 3, and a PCB board 4. The ring magnet 1 provides magnetic attraction to facilitate engagement with the corresponding magnetic component on the charging device. The mounting bracket 2 is a support structure used to fix the ring magnet 1, the magnetic head 3, and the PCB board 4. The magnetic head 3 is a charging interface that connects to the corresponding interface on the charging device to achieve the charging function. The PCB board 4 is a circuit connection component, replacing the traditional contact terminal connection method. The PCB board 4 is fixed in the second mounting hole 21 of the mounting bracket 2, with one end electrically connected to the magnetic head 3 and the other end extending outward from the second mounting hole 21 to connect to the internal circuitry or other components of the charging head. This embodiment uses the PCB board 4 (printed circuit board) as the circuit connection component, replacing the traditional contact terminal (i.e., copper sheet) connection method. Because the copper foil circuit design on the PCB board 4 is more refined, and the conductivity of the copper foil is generally better than that of the contact terminal, the PCB board 4 can reduce the internal impedance of the charging head, improve charging efficiency, and increase product yield. Furthermore, the reduced impedance decreases power loss during transmission, which typically translates into heat. Therefore, replacing the contact terminals with PCB board 4 reduces the heat generated by the charger during charging. In summary, by replacing the traditional contact terminal connection with PCB board 4, the problems of high impedance, low charging efficiency, severe heat generation, and low yield rate in existing magnetic chargers 100 are effectively solved.
[0028] In one embodiment, such as Figure 3 As shown, the PCB board 4 is inserted into the surface of the magnetic head 3 or soldered to the surface of the magnetic head 3.
[0029] Specifically, in the magnetic charging head 100, the PCB board 4, as the core component for circuit connection, needs to achieve a reliable electrical connection with the magnetic head 3. In this embodiment, the PCB board 4 can be inserted into the surface of the magnetic head 3 or soldered to the surface of the magnetic head 3. Both connection methods can achieve a stable connection between the PCB board 4 and the magnetic head 3.
[0030] For example, the surface of the magnetic head 3 is provided with slots or holes that match the pins of the PCB board 4. The pins on the PCB board 4 are aligned with the slots or holes on the surface of the magnetic head 3, and then pushed in until the pins are fully engaged with the slots or holes. After the connection is completed, a stable electrical connection is formed between the PCB board 4 and the magnetic head 3.
[0031] In one embodiment, such as Figure 2 As shown, the magnetic charging head 100 includes a fixing member 5, the fixing member 5 is provided with a third mounting hole 51, the fixing member 5 is embedded in the second mounting hole 21, and the PCB board 4 is embedded in the third mounting hole 51.
[0032] Specifically, the fastener 5 is provided with a third mounting hole 51, which matches the shape and size of the PCB board 4 so that the PCB board 4 can be tightly embedded. The shape of the third mounting hole 51 can be circular, square, or other shapes. For example, the third mounting hole 51 is a square hole to facilitate the embedding and fixing of the PCB board 4 within the fastener 5.
[0033] In one embodiment, such as Figure 2 As shown, the outer wall of the fastener 5 is provided with a protrusion 52, and the inner wall of the second mounting hole 21 is provided with a groove 23; when the fastener 5 is inserted into the second mounting hole 21, the protrusion 52 is inserted into the groove 23.
[0034] Specifically, the fixing member 5 is used to stably fix the PCB board 4 and ensure the electrical connection between the PCB board 4 and the magnetic charging head 3. To enhance the stability of the fixing member 5 within the mounting bracket 2, this embodiment provides a protrusion 52 on the outer wall of the fixing member 5 and a groove 23 on the inner wall of the second mounting hole 21 of the mounting bracket 2. When the fixing member 5 is inserted into the second mounting hole 21, the protrusion 52 can be inserted into the groove 23, thereby achieving precise positioning and secure locking of the fixing member 5. The tight fit between the protrusion 52 and the groove 23 prevents the fixing member 5 from moving or loosening during the use of the magnetic charging head 100.
[0035] For example, the outer side wall of the fastener 5 is provided with a protrusion 52 on each side, and the inner side wall of the second mounting hole 21 is provided with a groove 23 on each side, and each protrusion 52 is embedded in the groove 23 in a corresponding manner.
[0036] In one embodiment, such as Figure 2 and Figure 3 As shown, the fastener 5 is a fixing adhesive, which is filled into the second mounting hole 21.
[0037] Specifically, in this embodiment, a fixing adhesive is used to fill the second mounting hole 21, that is, to fill the gap between the PCB board 4 and the inner wall of the mounting bracket 2, and the PCB board 4 is fixed by curing, so as to achieve stable fixation of the PCB board 4 in the mounting bracket 2.
[0038] In one embodiment, such as Figure 4 As shown, the mounting bracket 2 includes a first support portion 24 and a second support portion 25. The second support portion 25 is sleeved on the end of the first support portion 24 that is away from the mounting groove 22. The first support portion 24 is sleeved in the first mounting hole 11. The second support portion 25 abuts against the annular magnet 1.
[0039] Specifically, the first support portion 24 can be a cylindrical structure, the size and shape of which match the first mounting hole 11. The first support portion 24 can be fitted into the first mounting hole 11 by interference fit to achieve stable fixation. The second support portion 25 is fitted onto the outside of the first support portion 24 and forms a stepped structure with the first support portion 24. The end face of the second support portion 25 abuts against the end face of the ring magnet 1 to support and limit the ring magnet 1.
[0040] In one embodiment, the first support portion 24 and the second support portion 25 are integrally formed.
[0041] Specifically, the first support portion 24 and the second support portion 25 can be integrally molded using injection molding, which simplifies the manufacturing process and enhances the overall structural strength of the entire mounting support 2.
[0042] In one embodiment, the annular magnet 1 is connected and fixed to the second support portion 25 by an adhesive component.
[0043] Specifically, the adhesive can be glue or other materials with adhesive properties. In this embodiment, the adhesive is used as a fixing medium to bond the ring magnet 1 to the second support portion 25. Before bonding, the bonding surface of the ring magnet 1 and the contact surface of the second support portion 25 are cleaned and pre-treated. The adhesive is applied to the bonding surface of the ring magnet 1, and then the ring magnet 1 is aligned with the contact surface of the second support portion 25, pressed down, and ensured that the ring magnet 1 and the second support portion 25 are tightly fitted together.
[0044] It should be understood that the term "and / or" as used in this specification and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes such combinations. It should be noted that, herein, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or system that includes that element.
[0045] The sequence numbers of the above-described embodiments of this utility model are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. The above descriptions are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. A magnetic charging head, characterized in that, The device includes a ring magnet, a mounting bracket, a magnetic head, and a PCB board. The ring magnet has a first mounting hole, the mounting bracket has a second mounting hole, the mounting bracket is sleeved in the first mounting hole, and the PCB board is fixed in the second mounting hole. The mounting bracket has a mounting groove on its end face that communicates with the second mounting hole. The magnetic head is embedded in the mounting groove. One end of the PCB board is electrically connected to the magnetic head, and the other end of the PCB board extends outward from the second mounting hole.
2. The magnetic charging head according to claim 1, characterized in that, The PCB board is inserted into the surface of the magnetic head or soldered to the surface of the magnetic head.
3. The magnetic charging head according to claim 1, characterized in that, The magnetic charging head includes a fixing member, the fixing member having a third mounting hole, the fixing member being embedded in the second mounting hole, and the PCB board being embedded in the third mounting hole.
4. The magnetic charging head according to claim 3, characterized in that, The outer wall of the fastener has a protrusion, and the inner wall of the second mounting hole has a groove; when the fastener is inserted into the second mounting hole, the protrusion is inserted into the groove.
5. The magnetic charging head according to claim 3 or 4, characterized in that, The fastener is a fixing adhesive, which is filled into the second mounting hole.
6. The magnetic charging head according to claim 1, characterized in that, The mounting bracket includes a first support portion and a second support portion. The second support portion is sleeved on the end of the first support portion away from the mounting groove. The first support portion is sleeved in the first mounting hole. The second support portion abuts against the annular magnet.
7. The magnetic charging head according to claim 6, characterized in that, The first support portion and the second support portion are integrally formed structures.
8. The magnetic charging head according to claim 6, characterized in that, The annular magnet is connected and fixed to the second support portion by an adhesive component.