Mobile power supply

Abstract

One embodiment of the utility model provides a mobile power supply comprising a housing which comprises an upper cover and a lower cover which are oppositely arranged; an accommodating cavity is defined between the upper cover and the lower cover; the battery is arranged in the accommodating cavity; the charging module comprises a charging coil, and the charging module is arranged between the battery and the upper cover; a first groove is formed in the side, facing the containing cavity, of the upper cover, and at least part of the charging coil is located in the first groove. The mobile power supply provided by the embodiment of the utility model can adapt to high-power wireless charging, and has the characteristics of thinner thickness and higher safety.

Description

Technical Field

[0001] The utility model relates to the technical field of 3C digital accessories, and particularly relates to a mobile power supply. Background Art

[0002] When people are outdoors, in order to keep electronic devices such as mobile phones and tablets fully charged, they usually carry a mobile power supply. The wireless charging mobile power supply is more popular because it does not need to be equipped with a charging cable and is more convenient to store and carry. At the same time, the charging speed is also what people pay more attention to. Increasing the power of the charging coil in the mobile power supply is a way to achieve a faster charging speed. However, the charging coil used for high-power charging has a larger size, which will cause the overall thickness of the mobile power supply to increase, resulting in worse storage and portability performance of the mobile power supply. Therefore, how to balance charging efficiency and a thin and light body is a problem that needs to be studied. Summary of the Utility Model

[0003] Therefore, in order to overcome at least some defects and deficiencies in the prior art, an embodiment of the utility model provides a mobile power supply, which can be adapted to high-power wireless charging and has the characteristics of a thinner thickness and higher safety.

[0004] An embodiment of the utility model provides a mobile power supply, including: a housing, the housing includes an upper cover and a lower cover which are oppositely arranged; a receiving cavity is formed by enclosing between the upper cover and the lower cover; a battery, arranged in the receiving cavity; a charging module, including a charging coil, the charging module is arranged between the battery and the upper cover; a first groove is arranged on one side of the upper cover facing the receiving cavity, and at least part of the charging coil is located in the first groove.

[0005] In some embodiments, a plurality of limiting parts are arranged in the first groove, the plurality of limiting parts extend from the side wall of the first groove towards the center of the first groove, and the charging coil is located in the space formed by enclosing the plurality of limiting parts.

[0006] In some embodiments, the charging module includes a substrate arranged between the charging coil and the battery, and the substrate is arranged on the plurality of limiting parts.

[0007] In some embodiments, the mobile power supply further includes: a magnetic attraction component, a second groove is further arranged on one side of the upper cover facing the receiving cavity, the second groove surrounds the first groove, and at least part of the magnetic attraction component is located in the second groove.

[0008] In some embodiments, a wire groove is further arranged on one side of the upper cover facing the receiving cavity, and the wire groove passes through the second groove and communicates with the first groove.

[0009] In some embodiments, the wire trough is arranged obliquely to the length direction of the upper cover.

[0010] In some embodiments, the magnetic assembly includes an annular magnetic component and a positioning magnetic component. The annular magnetic component is arranged around the charging coil and is at least partially arranged in the second groove. A third groove is also provided on the side of the upper cover facing the accommodating cavity, and the positioning magnetic component is at least partially arranged in the third groove.

[0011] In some embodiments, the groove depth of the second groove is greater than the groove depth of the first groove.

[0012] In some embodiments, the second groove is an annular groove, the outer annular sidewall of the second groove is inclined along the center of the second groove toward the periphery, and the notch width of the second groove is greater than the groove bottom width of the second groove.

[0013] In some embodiments, an isolation member is further included, covering a side of the battery facing the magnetic attraction assembly.

[0014] In some embodiments, the isolating member is provided with an avoidance hole, and the charging module is at least partially provided in the avoidance hole; and / or, the mobile power supply further includes a magnetic attraction component, and the magnetic attraction component is provided between the isolating member and the upper cover.

[0015] In some embodiments, the device further includes: a filling piece, which is arranged between the battery and the upper cover; and the filling piece is at least located on two opposite sides of the charging module along the length direction of the upper cover.

[0016] In some embodiments, the mobile power supply further includes a first positioning member, the battery has a top surface facing the upper cover, a bottom surface opposite to the top surface and multiple side surfaces located between the top surface and the bottom surface; the first positioning member is at least arranged on the bottom surface and at least one of the multiple side surfaces.

[0017] In some embodiments, the mobile power supply further includes a circuit board assembly, which is disposed adjacent to the battery along the length direction of the upper cover and is electrically connected to the battery.

[0018] In some embodiments, the mobile power supply further includes a battery protection member and a second positioning member, wherein the battery protection member is located between the circuit board assembly and the battery, the battery protection member is arranged at one end of the battery and fixedly connected to the battery tab, and the second positioning member is arranged between the battery protection member and the circuit board assembly.

[0019] In some embodiments, the mobile power supply further includes a heat-conducting film, which covers one side of the circuit board assembly facing the upper cover and extends in a direction close to the charging module.

[0020] In some embodiments, the circuit board assembly includes a first circuit board and a second circuit board. The first circuit board and the second circuit board are arranged in sequence along the thickness direction of the battery. A plurality of electronic components are provided on the first circuit board and the second circuit board, and the plurality of electronic components are located between the first circuit board and the second circuit board.

[0021] In some embodiments, at least one of the upper cover and the lower cover is provided with a limiting baffle extending into the accommodating cavity, and the limiting baffle is located at one end of the battery close to the circuit board assembly.

[0022] In some embodiments, the charging coil includes a linear conductor, and the wire diameter of the linear conductor is 2-3 millimeters.

[0023] As can be seen from the above, the above embodiments of the present invention can achieve one or more of the following beneficial effects: by providing a first groove on the upper cover, the charging module can be partially located in the first groove, which can reduce the distance between the upper cover and the battery. When using a high-power charging coil, it can also ensure that the overall thickness of the mobile power supply is relatively thin, taking into account the effects of efficient charging and lightness and portability. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The following will describe in detail the specific embodiments of the present invention in conjunction with the drawings.

[0025] Figure 1 It is a schematic diagram of the overall structure of a mobile power supply provided by an embodiment of the present invention.

[0026] Figure 2 For Figure 1 A three-dimensional schematic diagram cut open at A-A in.

[0027] Figure 3 For Figure 2 A partial enlarged schematic diagram of area B in.

[0028] Figure 4 For Figure 1 A partial exploded schematic diagram of the mobile power supply shown.

[0029] Figure 5 For Figure 1 Another exploded schematic diagram of the mobile power supply shown.

[0030] Figure 6 For Figure 1 A schematic diagram of the structure of the upper cover of the mobile power supply shown.

[0031]

Description of the Attached Drawing Reference Numerals

[0032] 10. Housing; 11. Upper cover; 11a. First end; 11b; Second end; 111. First groove; 112. Limiting part; 113. Limiting baffle; 114. Second groove; 115. Third groove; 116. Wire groove; 12. Lower cover; 20. Battery; 21. Top surface; 22. Bottom surface; 23. Side surface; 30. Charging module; 31. Charging coil; 32. Substrate; 33. Wire; 41. Filling piece; 42. Isolation piece; 421. Avoidance hole; 50. Magnetic attraction assembly; 51. Annular magnetic attraction piece; 52. Positioning magnetic attraction piece; 61. First positioning piece; 62. Second positioning piece; 70. Circuit board assembly; 71. First circuit board; 72. Second circuit board; 73. Electronic component; 80. Battery protection piece; 90. Heat conduction film. Detailed Embodiment

[0033] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the following will describe the detailed embodiments of the present utility model in conjunction with the attached drawings.

[0034] In order to enable those of ordinary skill in the art to better understand the technical solutions of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the attached drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0035] It should be noted that the terms "first", "second", etc. in the description and claims of the present utility model and the above attached drawings are used to distinguish similar objects, and do not necessarily need to describe a specific order or sequence. It should be understood that such terms can be interchanged under appropriate circumstances so that the embodiments of the present utility model described here can be implemented in an order other than those illustrated or described here. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units does not necessarily need to be limited to those clearly listed steps or units, but may include other steps or units not clearly listed or inherent to these processes, methods, products, or devices.

[0036] It should also be noted that the division of multiple embodiments in the present utility model is only for the convenience of description and should not constitute a special limitation. The features in various embodiments can be combined and cross-referenced without conflict.

[0037] Such asFigure 1 As shown, a mobile power supply provided by an embodiment of the present utility model includes a housing 10. For example, Figure 2 As shown, the housing 10 includes an upper cover 11 and a lower cover 12 which are oppositely arranged. An accommodation cavity is formed by enclosing between the upper cover 11 and the lower cover 12. Continuing to refer to Figure 2 , the mobile power supply further includes a battery 20 and a charging module 30. The battery 20 is arranged in the accommodation cavity. The charging module 30 is arranged between the battery 20 and the upper cover 11, and the charging module 30 includes a charging coil 31. Referring to Figure 6 , a first groove 111 is arranged on one side of the upper cover 11 facing the accommodation cavity, and at least part of the charging coil 31 of the charging module 30 is located in the first groove 111.

[0038] Referring to Figure 4 , a filling member 41 is further included in the mobile power supply and is arranged between the battery 20 and the upper cover 11. The filling member 41 is arranged around the charging coil 31.

[0039] Among them, the upper cover 11 and the lower cover 12 are oppositely arranged in the thickness direction of the battery 20. The charging coil 31 is, for example, a high-power coil, specifically, for example, a Qi2.0 wireless dedicated coil, and the working frequency during wireless charging can reach 3600KHZ, which can meet the high-efficiency charging demand and reduce the charging duration. The charging coil 31 includes a linear conductor. Specifically, the charging coil 31 is, for example, formed by spirally winding a linear conductor such as a copper wire on a plane, and the wire diameter of the linear conductor is, for example, 2 - 3mm. Compared with the conventional linear conductor with a wire diameter of 1 - 1.5mm, the charging coil 31 made of the linear conductor in this embodiment can achieve a higher wireless charging power.

[0040] By providing the first groove 111, the groove depth can provide a certain accommodation space for the top of the charging module 30. Therefore, it can ensure that the distance between the upper cover 11 and the battery 20 is kept small. Therefore, even if a high-power coil is used, a thinning effect can be achieved, and the first groove 111 can also limit the charging module 30 to prevent the charging module 30 from shifting. Improve the safety and stability of charging.

[0041] In some embodiments, referring to Figure 1 and Figure 4, the upper cover 11 has a first end 11a and a second end 11b which are oppositely arranged along the length direction, and the first groove 111 is arranged near the first end 11a. That is, the distance between the first groove 111 and the first end 11a is less than the distance between the first groove 111 and the second end 11b. Since the first groove 111 is arranged near the end of the upper cover 11, the charging module 30 is also arranged near the end of the upper cover 11, so that the installation space for other components such as the circuit board assembly 70 can be reserved in the length direction, which is convenient for reducing the overall thickness of the mobile power supply and realizing a thin and light design. Moreover, another function of arranging the first groove 111 near the first end 11a is to make the charging module 30 (or the charging coil 31) closer to the end of the upper cover 11 (or the mobile power supply). The advantage of this is that when the mobile power supply is placed on the back of the mobile phone for wireless charging, the end of the mobile power supply will not interfere with the edge of the camera on the back of the mobile phone, resulting in the deviation of the charging position. If the charging position deviates, it will cause the charging coil 31 of the mobile power supply to be misaligned with the receiving coil inside the mobile phone, resulting in low charging efficiency and increased heat generation.

[0042] In some embodiments, with continued reference to Figure 6 , a plurality of limiting parts 112 are arranged in the first groove 111, and the plurality of limiting parts 112 extend from the side wall of the first groove 111 towards the center of the first groove 111, and the charging coil 31 is located in the space formed by enclosing the plurality of limiting parts 112. Specifically, the limiting part 112 is Figure 6 the spoke extending from the edge of the first groove 111 to the center as shown in

[0043] In some embodiments, the charging module 30 includes a substrate 32 arranged between the charging coil 31 and the battery 20, and the substrate 32 is arranged on the plurality of limiting parts 112. The substrate 32 and the plurality of limiting parts 112 can cooperate to limit the charging coil 31 in the first groove 111.

[0044] In some embodiments, the mobile power supply provided by the embodiment of the present invention further includes a magnetic attraction assembly 50. With reference to Figure 6 , a second groove 114 is further arranged on the side of the upper cover 11 facing the accommodating cavity, the second groove 114 surrounds the first groove 111, and at least part of the magnetic attraction assembly 50 is located in the second groove 114. Specifically, with reference to Figure 5, the magnetic attraction assembly 50 includes, for example, an annular magnetic attraction member 51. The annular magnetic attraction member 51 is disposed around the charging module 30. Specifically, the annular magnetic attraction member 51 is at least partially disposed in the second groove 114. Accommodating the annular magnetic attraction member 51 through the second groove 114 can reduce the thickness space occupied by the annular magnetic attraction member 51. In some embodiments, the groove depth of the second groove 114 is greater than that of the first groove 111. In some embodiments, the second groove 114 is specifically in a ring structure. Specifically, refer to Figure 3 , the outer ring side wall of the second groove 114 is inclined in a direction from the center of the second groove 114 to the periphery. The width of the groove opening of the second groove 114 is greater than the width of the groove bottom of the second groove 114. By setting the side wall of the second groove 114 to be inclined, the strength of the edge of the second groove 114 can be increased to prevent the upper cover 11 from being bent and damaged.

[0045] In some embodiments, the magnetic attraction assembly 50 further includes a positioning magnetic attraction member 52. The positioning magnetic attraction member 52 and the annular magnetic attraction member 51 are arranged along the length direction of the upper cover 11. The positioning magnetic attraction member 52 is used to position the placement angle of the device to be charged to ensure that the placement is not offset, which can ensure the charging effect. In some embodiments, a third groove 115 is further provided on the upper cover 11. The positioning magnetic attraction member 52 is at least partially located in the third groove 115. The third groove 115 provides partial height space for the positioning magnetic attraction member 52 to achieve a thinning effect.

[0046] In some embodiments, a wire groove 116 is further provided on the side of the upper cover 11 facing the accommodation cavity. The wire groove 116 passes through the second groove 114 and communicates with the first groove 111. The charging module 30 further includes a wire 33 connected to the charging coil 31. The wire 33 is at least partially located in the wire groove 116. The wire 33 is used to connect the charging coil 31 to the circuit board assembly 70. The wire groove 116 can provide partial accommodation height for the wire 33 to achieve a thinning effect. In some embodiments, the wire groove 116 is inclined and arranged in the length direction of the upper cover 11 to avoid the position of the positioning magnetic attraction member 52. The wire 33 and the positioning magnetic attraction member 52 are arranged side by side, so that the occupied height can be reduced.

[0047] Refer to Figure 3 or Figure 5 , the mobile power supply further includes an isolation member 42. The isolation member 42 covers the side of the battery 20 facing the upper cover 11.

[0048] The spacer 42 is specifically made of highland barley paper. The spacer 42 isolates the upper cover 11 from the battery 20. When a magnetic assembly 50 is provided, the spacer 42 is positioned between the magnetic assembly 50 and the battery 20, for example. The spacer 42 isolates the magnetic assembly 50 from the battery 20, preventing burrs on the upper cover 11 or the magnetic assembly 50 from puncturing the battery 20 and protecting the battery 20. This also reduces the distance between the magnetic assembly 50 and the battery 20, achieving a thinner appearance.

[0049] In some embodiments, reference Figure 5 The isolation member 42 is provided with a relief hole 421, and the charging module 30 is disposed within the relief hole 421. By providing the relief hole 421, the isolation member 42 does not occupy the thickness of the area where the charging module 30 is located. In other words, the depth of the relief hole 421 provides a certain thickness space for accommodating the charging module 30, thereby reducing the overall thickness of the mobile power supply, achieving a thinning effect while achieving high-power charging and improving battery protection performance.

[0050] In some embodiments, reference Figure 4 and Figure 5 The mobile power supply further includes a filling member 41 , which is disposed between the battery 20 and the upper cover 11 and at least located on opposite sides of the charging module 30 along the length direction of the upper cover 11 .

[0051] The filler 41 is made of, for example, EVA (ethylene vinyl acetate). The charging coil 31 occupies a certain thickness between the battery 20 and the upper cover 11, creating a gap between the battery 20 and the upper cover 11, excluding the charging coil 31. The filler 41 fills this gap. Depending on the shape of the charging coil 31, multiple fillers 41 can be provided to fill different gaps. Positioning the filler 41 on opposite sides of the charging coil 31 along the length of the upper cover 11 prevents the charging coil 31 from squeezing the battery 20 and causing warping when it contacts the upper cover 11, improving safety and reducing the distance between the upper cover 11 and the charging coil 31. Furthermore, the filler 41 surrounds the charging coil 31, meaning it does not occupy additional space, thus maintaining a relatively thin power bank.

[0052] In some embodiments, the filler 41 is disposed between the spacer 42 and the upper cover 11. Double-sided tape is applied to opposite sides of the spacer 42, such that one side of the spacer 42 is secured to the battery 20 via the double-sided tape, while the other side is secured to the filler 41 via the double-sided tape. The spacer 42 is thinner than the filler 41.

[0053] In some embodiments, to further ensure high-power wireless charging, refer to Figure 5 , the mobile power supply further includes a first positioning member 61. The battery 20 has a top surface 21 facing the upper cover 11, a bottom surface 22 opposite to the top surface 21, and a plurality of side surfaces 23 located between the top surface 21 and the bottom surface 22. The first positioning member 61 is disposed at least at least one of the bottom surface 22 and the plurality of side surfaces 23. As Figure 5 shown, two first positioning members 61 are disposed on the bottom surface 22 of the battery 20, and first positioning members 61 are disposed on all of the plurality of side surfaces 23 of the battery 20. The first positioning member 61 can be made of EVA material, for example. The first positioning member 61 is fixed between the battery 20 and the housing 10 by means of applying glue. In this embodiment, one side of the first positioning member 61 is adhered to the surface of the battery 20, and the other side is in contact with the inner wall surface of the housing 10, which can prevent the battery 20 from moving relative to the housing 10 during wireless charging, and avoid the charging module 30 following the displacement of the battery 20 resulting in the charging coil 31 of the charging module 30 being offset from the receiving coil of the external charging device, thereby causing problems such as reduced wireless charging efficiency and large heat generation. That is to say, by providing the first positioning member 61, the stability of wireless charging can be further maintained, and the purpose of high-power wireless charging can be achieved.

[0054] While pursuing high charging efficiency and a thin and light body design, it is also necessary to take sufficient safety protection measures for the internal battery 20 to prevent the mobile power supply product from being dangerous during high-power charging due to battery damage. The first positioning member 61 can also protect the periphery of the battery 20 to prevent the battery 20 from being damaged by hitting the periphery of the lower cover 12, and prevent the battery 20 from being scratched by internal devices (such as the charging module 30) or internal structures resulting in puncture damage.

[0055] In some embodiments, the mobile power supply further includes a circuit board assembly 70. The circuit board assembly 70 is disposed adjacent to the battery 20 along the length direction of the upper cover 11 and is electrically connected to the battery 20. Among them, the circuit board assembly 70 is also electrically connected to the charging coil 31. The circuit board assembly 70 is used to control the charging and discharging functions of the mobile power supply, so as to output the power of the battery 20 to the device to be charged through the charging coil 31. The circuit board assembly 70 is adjacent to the battery 20 in the length direction and can not occupy the space in the thickness direction, thereby reducing the overall thickness of the mobile power supply.

[0056] In some embodiments, refer to Figure 2 and Figure 5The mobile power supply further includes a battery protector 80, which is located between the circuit board assembly 70 and the battery 20. The battery protector 80 is disposed at one end of the battery 20 and is fixedly connected to the tab of the battery 20. The tab of the battery protector 80 is fixed to the battery protector 80, for example, by welding. The battery protector 80 is connected to the circuit board assembly 70 via a wire, so that the battery 20 is protected by the battery protector 80 to prevent the battery 20 from moving and colliding with the circuit board assembly 70.

[0057] In some embodiments, reference Figure 2 and Figure 5 The mobile power supply also includes a second positioning member 62, which is arranged between the battery protection member 80 and the circuit board assembly 70. Specifically, the second positioning member 62 extends in a direction gradually approaching the battery 20 and covers the battery protection member 80. The second positioning member 62 is made of, for example, highland barley paper. The side of the second positioning member 62 facing the battery protection member 80 can be fixed to the battery protection member 80 by adhesive. The extended portion of the second positioning member 62 is also covered on the surface of the end of the battery 20 to prevent the battery protection member 80 from moving relative to the battery 20, and can also achieve comprehensive protection for the battery protection member 80 and the battery 20.

[0058] In some embodiments, at least one of the upper cover 11 and the lower cover 12 is provided with a limit baffle 113 extending toward the accommodating cavity, and the limit baffle 113 is located at one end of the battery 20 close to the circuit board assembly 70. Figure 5 A limit baffle 113 extending toward the accommodating cavity is provided on the upper cover 11, which can prevent the battery 20 from moving toward the direction close to the circuit board assembly 70, thereby avoiding collision between the battery 20 and the circuit board assembly 70 and damaging the components on the circuit board assembly 70 or the battery 20.

[0059] In some embodiments, the wireless power supply reference Figure 4 and Figure 5, further including a heat-conducting film 90, the heat-conducting film 90 covering the side of the circuit board assembly 70 facing the upper cover 11 and extending in the direction close to the charging module 30, and covering a partial area above the battery 20. In this embodiment, the heat-conducting film 90 covers the surface of the filling member 41. Thus, the heat-conducting film 90 can simultaneously conduct out the heat of the circuit board assembly 70, the battery 20 and the charging module 30. The main material of the heat-conducting film 90 can be, for example, graphene, and the graphene material has good heat-conducting performance and can dissipate heat evenly and quickly. In some embodiments, an insulating coating can be provided on the graphene film to avoid short circuits with the components on the circuit board assembly 70. In this embodiment, first, the heat-conducting film 90 conducts out the heat dissipated from the circuit board assembly 70, the battery 20 and the charging module 30, and then the heat-conducting film 90 provides a larger heat dissipation area to contact the upper cover 11 to quickly dissipate the heat, ensuring a good heat dissipation effect and avoiding the reduction of the charging efficiency of the circuit board due to too high temperature. And it can make the heat dissipate more evenly, avoiding the concentration of heat in a certain part of the housing 10, so as to cause a poor experience for the user.

[0060] In some embodiments, the lower cover 12 can be made of a metal material with good heat-conducting performance, so that the heat of the battery 20 can be conducted out from the lower cover 12 faster.

[0061] In some embodiments, the circuit board assembly 70 includes a first circuit board 71 and a second circuit board 72, and the first circuit board 71 and the second circuit board 72 are sequentially arranged along the thickness direction of the battery 20. By arranging the circuit board assembly 70 in a double-layer structure, the area of the circuit board assembly 70 can be reduced, realizing the efficient utilization of space. In some embodiments, a plurality of electronic components 73 are provided on the first circuit board 71 and the second circuit board 72, and the plurality of electronic components 73 are located between the first circuit board 71 and the second circuit board 72, which can achieve the effect of thinning.

[0062] The mobile power supply provided by the embodiment of the present utility model can achieve the effect of reducing the overall thickness of the mobile power supply and thus realizing miniaturization through the settings of the filling member 41, the avoidance holes 421 on the isolation member 42, the first groove 111, and the double-layer setting of the circuit board assembly 70. Further, the battery 20 is protected by the isolation member 42, the first positioning member 61, the battery protection member 80 and the second positioning member 62, preventing damage to the battery 20, and the safety performance of the mobile power supply can be improved. Also, a better heat dissipation effect is achieved through the setting of the heat-conducting film 90, and combined with the high-power charging coil 31, efficient charging can be ensured.

[0063] The above are only the preferred embodiments of the present utility model, and do not impose any form of limitation on the present utility model. Although the present utility model has been disclosed above with the preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to equivalent embodiments by using the disclosed technical content within the scope of the technical solution of the present utility model. However, as long as it does not depart from the content of the technical solution of the present utility model, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. A mobile power supply, characterized in that, Comprising: A housing (10), the housing (10) including an upper cover (11) and a lower cover (12) arranged oppositely; an accommodation cavity is formed by enclosing between the upper cover (11) and the lower cover (12); A battery (20), arranged in the accommodation cavity; A charging module (30), including a charging coil (31), the charging module (30) is arranged between the battery (20) and the upper cover (11); a first groove (111) is arranged on one side of the upper cover (11) facing the accommodation cavity, and at least part of the charging coil (31) is located in the first groove (111).

2. The mobile power supply according to claim 1, characterized in that, The upper cover (11) has a first end (11a) and a second end (11b) arranged oppositely along the length direction, and the first groove (111) is arranged close to the first end (11a).

3. The mobile power supply according to claim 1, wherein A plurality of limiting parts (112) are arranged in the first groove (111), the plurality of limiting parts (112) extend from the side wall of the first groove (111) towards the center of the first groove (111), and the charging coil (31) is located in the space formed by enclosing of the plurality of limiting parts (112).

4. The mobile power supply according to claim 3, wherein, The charging module (30) includes a substrate (32) arranged between the charging coil (31) and the battery (20), and the substrate (32) is placed on the plurality of limiting parts (112).

5. The mobile power supply according to claim 1, characterized in that, Further comprising: A magnetic attraction assembly (50), a second groove (114) is further arranged on one side of the upper cover (11) facing the accommodation cavity, the second groove (114) surrounds the first groove (111), and at least part of the magnetic attraction assembly (50) is located in the second groove (114).

6. The mobile power supply according to claim 5, characterized in that, A wire groove (116) is further arranged on one side of the upper cover (11) facing the accommodation cavity, and the wire groove (116) passes through the second groove (114) and communicates with the first groove (111).

7. The mobile power supply according to claim 6, characterized in that, The wire groove (116) is arranged obliquely to the length direction of the upper cover (11).

8. The mobile power supply according to claim 5, characterized in that, The magnetic attraction assembly (50) includes an annular magnetic attraction member (51) and a positioning magnetic attraction member (52), the annular magnetic attraction member (51) is arranged around the charging coil (31) and at least part of it is arranged in the second groove (114), a third groove (115) is further arranged on one side of the upper cover (11) facing the accommodation cavity, and at least part of the positioning magnetic attraction member (52) is arranged in the third groove (115).

9. The mobile power supply according to claim 5, wherein The groove depth of the second groove (114) is greater than the groove depth of the first groove (111).

10. The mobile power supply according to claim 5, characterized in that, The second groove (114) is an annular groove, the outer annular side wall of the second groove (114) is arranged obliquely from the center of the second groove (114) towards the periphery, and the width of the groove opening of the second groove (114) is greater than the width of the groove bottom of the second groove (114).

11. The mobile power supply according to claim 1, characterized in that, Further comprising a separator (42), covering the surface of the battery (20) facing the upper cover (11).

12. The mobile power supply according to claim 11, wherein, The isolation member (42) is provided with an avoidance hole (421), and at least a part of the charging module (30) is arranged in the avoidance hole (421); and / or, the mobile power supply further includes a magnetic attraction assembly (50), and the magnetic attraction assembly (50) is arranged between the isolation member (42) and the upper cover (11).

13. The mobile power supply according to claim 1, wherein It further includes: A filling member (41) is arranged between the battery (20) and the upper cover (11); and the filling member (41) is at least located on opposite sides of the charging module (30) along the length direction of the upper cover (11).

14. The mobile power supply according to claim 13, characterized in that, It further includes a first positioning member (61). The battery (20) has a top surface (21) facing the upper cover (11), a bottom surface (22) opposite to the top surface (21), and a plurality of side surfaces (23) located between the top surface (21) and the bottom surface (22); the first positioning member (61) is arranged at least at least one of the bottom surface (22) and the plurality of side surfaces (23).

15. The mobile power supply according to claim 1, characterized in that, It further includes a circuit board assembly (70). The circuit board assembly (70) is arranged adjacent to the battery (20) along the length direction of the upper cover (11) and is electrically connected to the battery (20).

16. The mobile power supply according to claim 15, wherein, It further includes a battery protection member (80) and a second positioning member (62). The battery protection member (80) is located between the circuit board assembly (70) and the battery (20). The battery protection member (80) is arranged at one end of the battery (20) and is fixedly connected to the ear of the battery (20), and the second positioning member (62) is arranged between the battery protection member (80) and the circuit board assembly (70).

17. The mobile power supply according to claim 15, wherein, It further includes a heat conduction film (90). The heat conduction film (90) covers one side of the circuit board assembly (70) facing the upper cover (11) and extends in a direction close to the charging module (30).

18. The mobile power supply according to claim 15, wherein The circuit board assembly (70) includes a first circuit board (71) and a second circuit board (72). The first circuit board (71) and the second circuit board (72) are arranged in sequence along the thickness direction of the battery (20). A plurality of electronic components (73) are arranged on the first circuit board (71) and the second circuit board (72), and the plurality of electronic components (73) are located between the first circuit board (71) and the second circuit board (72).

19. The mobile power supply according to claim 15, wherein At least one of the upper cover (11) and the lower cover (12) is provided with a limit baffle (113) extending into the accommodating cavity. The limit baffle (113) is located at one end of the battery (20) close to the circuit board assembly (70).

20. The mobile power supply according to any one of claims 1 to 19, characterized in that, The charging coil (31) includes a linear conductor, and the wire diameter of the linear conductor is 2 to 3 millimeters.

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