Mobile power supply

Abstract

The utility model discloses a mobile power supply, which comprises a shell, and a power supply module and a charging module which are arranged in the shell, the power supply module comprises a battery cell and a first circuit board electrically connected with the battery cell, and the charging module comprises a charging structure and a second circuit board electrically connected with the charging structure. The second circuit board and the first circuit board are electrically connected and arranged at intervals. The first circuit board and the second circuit board are arranged in the shell, the battery cell and the charging structure are electrically connected with the first circuit board and the second circuit board respectively, and the first circuit board and the second circuit board can generate heat in the use process of the mobile power supply, so that the effect of dispersing a heat source is achieved, and the situation that the mobile power supply is overheated locally is avoided; and meanwhile, the first circuit board and the second circuit board are mutually spaced, and the gap between the first circuit board and the second circuit board can form a heat dissipation channel, so that the heat dissipation effect of the first circuit board and the second circuit board is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of charging equipment, in particular to a mobile power source. Background Art

[0002] A mobile power bank is a device that can be carried around to help people charge their mobile phones and other electronic products outdoors. To facilitate carrying, the size of the mobile power bank should not be too large, so the internal installation space is limited. The circuit board of the mobile power bank will generate a lot of heat during operation. If the heat cannot be discharged in time, it may affect the charging efficiency and service life of the mobile power bank.

[0003] However, in existing mobile power supplies, due to the limitation of installation space, electrical components are usually integrated on a circuit board, resulting in a small distance between electrical components, which seriously affects the heat dissipation efficiency. Utility Model Content

[0004] In view of this, the utility model provides a mobile power supply to solve the above problems.

[0005] A mobile power supply provided in the present application includes a shell and a power supply module and a charging module arranged in the shell, the power supply module includes a battery cell and a first circuit board electrically connected to the battery cell, the charging module includes a charging structure and a second circuit board electrically connected to the charging structure, the second circuit board is electrically connected to the first circuit board and is arranged to be spaced apart from each other.

[0006] In some embodiments, the first circuit board and the second circuit board are located on the same side of the battery cell and are spaced apart in a thickness direction of the mobile power supply.

[0007] In some embodiments, a support member is disposed between the first circuit board and the second circuit board.

[0008] In some embodiments, a heat conductive member is disposed inside the housing, and the heat conductive member is thermally connected to the battery core.

[0009] In some embodiments, the housing includes a heat-conducting shell, and the heat-conducting member is thermally connected to the heat-conducting shell.

[0010] In some embodiments, the heat conductive member includes a main body portion thermally connected to the battery core and an extension portion extending from an outer side of the main body portion toward a direction away from the battery core, and the extension portion is thermally connected to the heat conductive housing.

[0011] In some embodiments, the mobile power supply further includes a bracket disposed outside the heat-conducting housing, and the bracket is rotatably connected to the heat-conducting housing.

[0012] In some embodiments, the bracket is thermally connected to the heat conductive housing.

[0013] In some embodiments, the extension portion is thermally connected to the heat-conductive housing at a position close to the bracket.

[0014] In some embodiments, a separator is provided on a side of the battery core away from the heat conductive member, and the charging structure is located on a side of the separator away from the battery core.

[0015] In some embodiments, the heat conductive element includes a heat transfer layer, and an adhesive layer and a nano heat dissipation material layer respectively disposed on opposite sides of the heat transfer layer, and the adhesive layer is adhered and fixed to the outer side of the battery core.

[0016] In some embodiments, the charging structure includes a wireless charging coil electrically connected to the second circuit board.

[0017] The mobile power supply provided by the utility model is provided with a first circuit board and a second circuit board inside a shell, and a battery cell and a charging structure are electrically connected to the first circuit board and the second circuit board respectively. During the use of the mobile power supply, the first circuit board and the second circuit board both generate heat, so as to disperse the heat source and avoid local overheating of the mobile power supply. At the same time, since the first circuit board and the second circuit board are spaced from each other, a gap between the two can form a heat dissipation channel, which is beneficial to improving the heat dissipation effect of the first circuit board and the second circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the structure of a mobile power supply provided by an embodiment of the utility model;

[0019] Figure 2 for Figure 1 An exploded schematic diagram of a mobile power supply shown in FIG.

[0020] Figure 3 for Figure 1 The schematic diagram of the structure of the mobile power supply when the outer shell is removed is shown in FIG;

[0021] Figure 4 for Figure 3 A schematic diagram of a mobile power bank with the outer shell removed from another perspective is shown in FIG.

[0022] Figure 5 for Figure 1 Exploded view of the housing shown in .

[0023] In the figure: 10, mobile power supply; 12, shell; 14, battery cell; 16, first circuit board; 18, charging structure; 20, second circuit board; 22, magnetic member; 24, first mounting position; 26, second mounting position; 28, control button; 30, support member; 32, heat conductive member; 34, heat conductive shell; 36, main body; 38, extension part; 39, bracket; 40, storage part; 41, handle position; 42, cover body; 44, cover plate; 46, side plate; 48, elastic snap fastener; 50, protective layer; 52, partition. DETAILED DESCRIPTION

[0024] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0025] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, inside, outside, top, bottom...) are only used to explain the relative position relationship between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0026] It should also be noted that when an element is referred to as being "fixed on" or "disposed on" another element, the element may be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0027] See also Figures 1 to 5A mobile power source 10 provided by an embodiment of the utility model includes a housing 12 and a power supply module and a charging module arranged in the housing 12. The power supply module includes a battery cell 14 and a first circuit board 16 electrically connected to the battery cell 14. The charging module includes a charging structure 18 and a second circuit board 20 electrically connected to the charging structure 18. The first circuit board 16 and the second circuit board 20 are electrically connected and spaced apart from each other. The battery cell 14 is used to provide electrical energy, and the charging structure 18 is used to cooperate with electronic devices such as mobile phones, so as to use the battery cell 14 to charge the electronic devices. By arranging the first circuit board 16 and the second circuit board 20 inside the shell 12, the battery cell 14 and the charging structure 18 are electrically connected to the first circuit board 16 and the second circuit board 20 respectively. During the use of the mobile power supply 10, both the first circuit board 16 and the second circuit board 20 will generate heat. By arranging them into two circuit boards, the heat source can be dispersed to avoid local overheating of the mobile power supply 10. At the same time, since the first circuit board 16 and the second circuit board 20 are spaced from each other, the gap between the two can form a heat dissipation channel, which is beneficial to improving the heat dissipation effect of the first circuit board 16 and the second circuit board 20, and avoiding the first circuit board 16 and the second circuit board 20 from being too high in temperature and affecting the working performance and service life.

[0028] The specific type of the battery cell 14 is not limited, as long as it can store electrical energy, such as a battery, a capacitor, etc.

[0029] The way in which the charging structure 18 is connected to the electronic device is not limited. For example, it can be connected to the electronic device through a data cable or through a wireless connection. In this embodiment, the charging structure 18 includes a charging coil, which is electrically connected to the second circuit board 20. The charging coil is used to cooperate with the coil used for charging inside the electronic device, thereby forming a wireless charging effect.

[0030] A magnetic member 22 is provided inside the housing 12. The magnetic member 22 is annular and surrounds the outer circumference of the charging coil. The magnetic member 22 is used to form a magnetic attraction effect with the electronic device, so that the mobile power supply 10 and the electronic device are magnetically fixed together to prevent the two from separating and affecting the charging effect. Specifically, the magnetic member 22 is an open annular structure, so as to prevent the generation of eddy current phenomenon and affect the charging effect.

[0031] The inner side of the housing 12 is recessed with a first mounting position 24 and a second mounting position 26 surrounding the first mounting position 24 . The charging coil is mounted on the first mounting position 24 , and the magnetic member 22 is mounted on the second mounting position 26 to enhance the stability of the wireless charging coil and the magnetic member 22 .

[0032] It is understandable that the connection method between the magnetic member 22 and the charging coil and the housing 12 is not limited, for example, they can be glued and fixed.

[0033] The mobile power supply 10 further includes a control button 28 electrically connected to the second circuit board 20. The control button 28 protrudes from the outside of the housing 12 or is flush with the outer surface of the housing 12 for a user to press, thereby controlling the charging coil. When the mobile power supply 10 is needed to charge an electronic device, the mobile power supply 10 and the electronic device can be fixed together using the magnetic member 22, and then the control button 28 is pressed, and the mobile power supply 10 can charge the electronic device through the charging coil. When charging is not needed, the control button 28 is not pressed to avoid wasting the power of the battery cell 14.

[0034] In one embodiment, the first circuit board 16 and the second circuit board 20 are located on the same side of the battery cell 14 and are arranged at intervals in the thickness direction of the mobile power supply 10. By placing the first circuit board 16 and the second circuit board 20 on the same side of the battery cell 14, electrical connection between the two is facilitated, and the two are arranged in the thickness direction, making full use of the space in the thickness direction of the mobile power supply 10, which is conducive to reducing the circumferential size of the mobile power supply 10, so as to reduce the product volume.

[0035] A support member 30 is provided between the first circuit board 16 and the second circuit board 20. One end of the support member 30 is fixedly connected to the first circuit board 16, and the other end is electrically connected to the second circuit board 20, so as to separate the first circuit board 16 and the second circuit board 20 to prevent the two from contacting each other. Preferably, there are multiple support members 30, and the multiple support members 30 are spaced apart from each other.

[0036] It can be understood that the support member 30 can be made of a conductive material, or a conductive layer can be provided on the surface of the support member 30, so that the support member 30 can support the first circuit board 16 and the second circuit board 20 while also providing electrical connection between the first circuit board 16 and the second circuit board 20.

[0037] In one embodiment, a heat conducting member 32 is disposed inside the housing 12, and the heat conducting member 32 is thermally connected to the battery core 14. The heat conducting member 32 has good thermal conductivity and can absorb the heat generated by the battery core 14 during operation, thereby reducing the temperature of the battery core 14, improving the heat dissipation effect of the battery core 14, and preventing the battery core 14 from being overheated.

[0038] The housing 12 includes a heat-conducting housing 34, and the heat-conducting member 32 is connected to the heat-conducting housing 34 by thermal conduction. The heat-conducting housing 34 is made of a heat-conducting material such as metal, and has good heat conductivity. The heat generated by the battery cell 14 can be transferred to the heat-conducting housing 34 through the heat-conducting member 32, and then dissipated by the heat-conducting housing 34, thereby increasing the heat dissipation area, thereby improving the heat dissipation capacity of the battery cell 14, and the heat-conducting housing 34 can directly dissipate the heat to the air outside the mobile power supply 10, which can prevent heat from accumulating in the space inside the mobile power supply 10, thereby reducing the internal temperature of the mobile power supply 10.

[0039] The heat conducting member 32 includes a main body 36 connected to the battery cell 14 by thermal conduction, and an extension 38 extending from the outside of the main body 36 in a direction away from the battery cell 14, and the extension 38 is connected to the heat conducting housing 34. Specifically, the extension 38 and the first circuit board 16 and the second circuit board 20 are located on the same side of the battery cell 14, and the extension 38 is generally L-shaped so as to increase the contact area with the heat conducting housing 34. The extension 38 is extended to the outside of the battery cell 14 so as to be connected to the heat conducting housing 34, and the heat generated by the battery cell 14 is first transferred to the main body 36 of the heat conducting member 32, and then transferred from the main body 36 to the extension 38, and finally transferred from the extension 38 to the heat conducting housing 34, and the heat conducting housing 34 is used to assist in heat dissipation.

[0040] The specific type of the heat conductor 32 is not limited, such as heat-conducting metal, heat-conducting silicone grease or nano heat-dissipating material, etc. In the present embodiment, the heat conductor 32 includes a heat transfer layer and a glue layer and a nano heat-dissipating material layer respectively arranged on opposite sides of the heat transfer layer, the glue layer is bonded and fixed to the outside of the battery core 14, and the nano heat-dissipating material is thermally connected to the heat-conducting housing 34. Specifically, the heat transfer layer is aluminum foil, and aluminum not only has good thermal conductivity but also is relatively light in weight. The heat conductor 32 can not only transfer the heat of the battery core 14 to the heat-conducting housing 34, but the nano heat-dissipating material layer can also convert the heat into infrared heat rays and transmit it to the atmosphere, forming a low thermal resistance path, so as to achieve the purpose of rapid heat dissipation.

[0041] In one embodiment, the mobile power supply 10 further includes a bracket 39, which is located outside the heat-conducting housing 34 and is rotatably connected to the heat-conducting housing 34. Specifically, a rotating shaft is provided on the heat-conducting housing 34, and the bracket 39 is rotatably connected to the heat-conducting housing 34 via the rotating shaft. The bracket 39 can rotate at a certain angle relative to the heat-conducting housing 34 to play a role in supporting the housing 12, and the mobile power supply 10 can be magnetically fixed to the electronic device through the magnetic member 22, thereby playing the role of supporting the electronic device.

[0042] The bracket 39 is thermally connected to the heat-conducting housing 34. Specifically, the bracket 39 is located on a side of the heat-conducting housing 34 close to the first circuit board 16 and the second circuit board 20 and is supported by a heat-conducting metal material. Therefore, the bracket 39 has good thermal conductivity. After the heat-conducting member 32 transfers the heat of the battery cell 14 to the heat-conducting housing 34, the heat is then transferred to the bracket 39 by the heat-conducting housing 34. The bracket 39 is used to assist in heat dissipation, thereby further increasing the heat dissipation area.

[0043] Preferably, the extension portion 38 of the heat conductor 32 is thermally connected to the heat conductive housing 34 near the bracket 39 to reduce the distance between the heat conductor 32 and the bracket 39 so that the heat conductor 32 can transfer heat to the bracket 39 through the heat conductive housing 34 more quickly.

[0044] The outer side of the heat-conducting housing 34 is provided with a storage portion 40, and the bracket 39 is rotatably mounted on the storage portion 40. When the bracket 39 is needed, the bracket 39 can be rotated out of the storage portion 40 so that it forms a specific angle with the heat-conducting housing 34 for support. When it is not needed, the bracket 39 can be stored in the storage portion 40 to reduce the abruptness of the bracket 39. Preferably, the size of the bracket 39 is adapted to the size of the storage portion 40. When the bracket 39 is stored in the storage portion 40, the outer surface of the bracket 39 is flush with the corresponding outer surface of the heat-conducting housing 34.

[0045] The heat-conducting housing 34 is provided with a gripping position 41 near one end of the bracket 39 away from the rotating shaft. When in use, the user can insert a finger or a nail into the gripping position 41 and press against the bracket 39 so that the user can rotate the bracket 39.

[0046] In one embodiment, the housing 12 further includes a cover 42, which is enclosed with the heat-conducting housing 34 to form a storage space, in which the battery cell 14, the charging module, and the power supply module are respectively accommodated, the charging coil and the magnetic member 22 are located between the battery cell 14 and the cover 42, and the first mounting position 24 and the second mounting position 26 are provided on the cover 42. Specifically, the heat conductivity of the cover 42 is less than that of the heat-conducting housing 34, and can be made of materials such as rubber or plastic, for example, which is easier to process than the metal heat-conducting housing 34.

[0047] The cover body 42 includes a cover plate 44 and a side plate 46 connected to the outer periphery of the cover plate 44. The cover plate 44 is located on one side of the heat-conducting housing 34. The side plate 46 is inserted into the heat-conducting housing 34 and is snap-connected with the heat-conducting housing 34. The first mounting position 24 and the second mounting position 26 are provided on the cover body 42. Specifically, an elastic snap member 48 is provided on the side plate 46, and a snap hole matching the elastic snap member 48 is provided on the inner side of the heat-conducting housing 34. The elastic snap member 48 can be snapped into or out of the snap hole to form a snap effect or release the snap effect. By providing the matching elastic snap member 48 and the snap hole, the heat-conducting housing 34 is snap-connected with the cover body 42, which facilitates the disassembly and assembly of the housing 12.

[0048] A protective layer 50 is disposed inside the housing 12 . The protective layer 50 surrounds the outer circumference of the battery cell 14 to prevent the battery cell 14 from being damaged when the side plate 46 of the cover 42 is inserted into the heat-conducting housing 34 during the assembly of the housing 12 .

[0049] It is understandable that the protection layer 50 may only have a protective function, or may be supported by a thermally conductive material so that it can absorb the heat of the battery cell 14 while protecting the battery cell 14 to assist the battery cell 14 in dissipating heat.

[0050] A separator 52 is provided on a side of the battery core 14 away from the heat conductive member 32 . The separator 52 is located between the battery core 14 and the charging coil and the magnetic member 22 to separate the battery core 14 from the charging coil and the magnetic member 22 .

[0051] It can be understood that the separator 52 can be a protective element for protecting the battery cell 14, such as highland barley paper, to prevent the charging structure 18 from damaging the battery cell 14 during the assembly process, or the separator 52 can also be a thermally conductive element made of a thermally conductive material, which is thermally connected to the battery cell 14 to absorb the heat generated by the battery cell 14 during operation, so as to further increase the heat dissipation area.

[0052] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A mobile power source, characterized in that: It includes a shell and a power supply module and a charging module arranged in the shell, the power supply module includes a battery cell and a first circuit board electrically connected to the battery cell, the charging module includes a charging structure and a second circuit board electrically connected to the charging structure, the second circuit board is electrically connected to the first circuit board and is spaced apart from each other.

2. The mobile power source according to claim 1, characterized in that: The first circuit board and the second circuit board are located on the same side of the battery core and are spaced apart in the thickness direction of the mobile power supply.

3. The mobile power source according to claim 2, characterized in that: A supporting member is provided between the first circuit board and the second circuit board.

4. The mobile power source according to claim 1, characterized in that: A heat conducting member is disposed inside the shell, and the heat conducting member is thermally connected to the battery core.

5. The mobile power source according to claim 4, characterized in that: The housing comprises a heat-conducting shell, and the heat-conducting member is thermally connected to the heat-conducting shell.

6. The mobile power source according to claim 5, characterized in that: The heat conducting member includes a main body portion thermally connected to the battery core and an extension portion extending from the outside of the main body portion toward a direction away from the battery core, wherein the extension portion is thermally connected to the heat conducting housing.

7. The mobile power source according to claim 6, characterized in that: The mobile power source further comprises a bracket arranged outside the heat-conducting shell, and the bracket is rotatably connected to the heat-conducting shell.

8. The mobile power source according to claim 7, characterized in that: The bracket is thermally connected to the heat-conducting housing.

9. The mobile power source according to claim 8, characterized in that: The extension portion is thermally connected to a position of the heat-conducting housing close to the bracket.

10. The mobile power source according to claim 4, characterized in that: A separator is provided on a side of the battery core away from the heat conductive member, and the charging structure is located on a side of the separator away from the battery core.

11. The mobile power source according to claim 4, characterized in that: The heat conducting member comprises a heat transfer layer, and a glue layer and a nano heat dissipation material layer respectively arranged on opposite sides of the heat transfer layer, and the glue layer is adhered and fixed to the outer side of the battery core.

12. The mobile power source according to any one of claims 1 to 10, characterized in that: The charging structure includes a wireless charging coil electrically connected to the second circuit board.

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