Wireless charging device and energy storage equipment

Abstract

The invention relates to a wireless charging device and energy storage equipment. The wireless charging device is used for being detachably connected with a host of the energy storage equipment and comprises a support used for being detachably connected with the host; the charging mechanism comprises a shell, a charging coil, a radiator and a heat conduction piece, the shell is provided with a containing cavity, the shell is rotationally connected with the support so that the shell can be stacked on the support, and the charging coil is contained in the containing cavity; the radiator is located in the containing cavity and overlaid on the charging coil. The heat conduction member is abutted between the radiator and the charging coil. In view of the fact that the support of the wireless charging device is used for being detachably connected with the host, the whole wireless charging device can be directly unloaded from the host when the charging coil in the wireless charging device breaks down and needs to be replaced, and therefore a new wireless charging device can be installed on the host. Therefore, the maintenance convenience of the whole energy storage equipment is improved.

Description

Technical Field

[0001] The present application relates to the field of electronic technology, and in particular to a wireless charging device and an energy storage device. Background Art

[0002] Energy storage devices can wirelessly charge mobile phones and other electronic devices through their wireless charging devices, that is, by placing a coil at the transmitting end and the receiving end, the coil at the transmitting end sends an electromagnetic signal to the outside world under the action of electricity, and the coil at the receiving end receives the electromagnetic signal and converts it into current, thereby achieving the purpose of wireless charging. However, for traditional energy storage devices, when the coil of the wireless charging device fails and needs to be replaced, it is necessary to disassemble multiple parts such as the shell of the energy storage device, which will affect the convenience of energy storage device maintenance. Summary of the invention

[0003] One technical problem solved by the present application is how to improve the convenience of energy storage equipment maintenance.

[0004] A wireless charging device, used for detachably connecting to a host of an energy storage device, the wireless charging device comprising:

[0005] A bracket, the bracket being used for detachably connecting with the host;

[0006] A charging mechanism, the charging mechanism comprising a shell, a charging coil, a heat sink and a heat conductor, the shell being provided with a receiving cavity, and the shell being rotatably connected to the bracket so that the shell can be stacked on the bracket, the charging coil being accommodated in the receiving cavity; the heat sink being located in the receiving cavity and stacked on the charging coil; the heat conductor being abutted between the heat sink and the charging coil.

[0007] In one embodiment, the bracket includes a base and a connecting seat, one end of the connecting seat is rotatably connected to the shell, and the other end of the connecting seat is rotatably connected to the base, the axis around which the connecting seat rotates relative to the shell and the axis around which the connecting seat rotates relative to the base are parallel to each other, and along the thickness direction of the charging mechanism, the base, the connecting seat and the charging mechanism can be stacked on each other.

[0008] In one embodiment, the connecting seat has a connecting cavity, the shell also has a first wire passing hole connecting the accommodating cavity and the connecting cavity, the base has a second wire passing hole connecting the connecting cavity, and the wire connected to the charging coil is passed through the first wire passing hole, the connecting cavity and the second wire passing hole.

[0009] In one of the embodiments, the bracket further includes a damping shaft, and the connecting seat is rotatably connected to the shell and the base respectively through different damping shafts.

[0010] In one of the embodiments, the bracket further includes a driving circuit board and a contact connector, the driving circuit board is arranged on the base, and the contact connector is arranged on the circuit board and is used for elastic abutment with the host.

[0011] In one embodiment, the outer surface of the shell includes a bottom surface and a side peripheral surface that are connected to each other, the side peripheral surface is arranged around the bottom surface and the charging coil, the radiator is arranged on a side of the charging coil close to the bottom surface, and the orthographic projection of the bottom surface in the thickness direction of the charging mechanism covers the radiator.

[0012] In one of the embodiments, a first convection hole connected to the accommodating cavity is formed on the bottom surface, and a second convection hole connected to the accommodating cavity is formed on the side circumferential surface.

[0013] In one embodiment, the charging mechanism further includes a magnetic member, and the magnetic member is located in the accommodating cavity.

[0014] In one of the embodiments, the shell includes a bottom shell and a top cover, the bottom shell encloses the accommodating cavity and is connected to the bracket, and the top cover is detachably connected to the bottom shell and covers the accommodating cavity.

[0015] In one of the embodiments, the outer surface of the shell includes a side circumferential surface arranged around the charging coil, and a recessed groove is formed on the side circumferential surface.

[0016] An energy storage device comprises a host and any one of the wireless charging devices described above, wherein the bracket is detachably connected to the host.

[0017] In one of the embodiments, the host includes a casing, an outer surface of the casing is recessed to form an open cavity, the bracket is fixed in the open cavity, and when the shell is stacked on the bracket, the wireless charging device can be completely accommodated in the open cavity.

[0018] A technical effect of an embodiment of the present application is that, since the bracket of the wireless charging device is used to be detachably connected to the host, when the charging coil in the wireless charging device fails and needs to be replaced, the entire wireless charging device can be directly uninstalled from the host, and a new wireless charging device can be installed on the host, so that other components in the host do not need to be disassembled, thereby improving the convenience of maintaining the entire energy storage device. At the same time, the shell can be stacked on the bracket, so that the volume of the wireless charging device can be reduced, and the convenience of carrying and storing the energy storage device can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the three-dimensional structure of an energy storage device provided by an embodiment when the wireless charging device is in a folded state.

[0020] Figure 2 for Figure 1 The three-dimensional structural schematic diagram of the energy storage device when the wireless charging device is in the unfolded state.

[0021] Figure 3 for Figure 1 Schematic diagram of the exploded structure of the energy storage device shown.

[0022] Figure 4 for Figure 1 A schematic diagram of the three-dimensional structure of the wireless charging device in the energy storage device when it is in a folded state.

[0023] Figure 5 for Figure 4 The three-dimensional structural schematic diagram of the wireless charging device when it is in the unfolded state.

[0024] Figure 6 for Figure 4 The shown is a schematic diagram of a three-dimensional cross-sectional structure of the wireless charging device in an unfolded state.

[0025] Figure 7 for Figure 4 A schematic three-dimensional cross-sectional structure diagram of a charging mechanism in the wireless charging device shown.

[0026] Figure 8 for Figure 4 A first exemplary exploded structural diagram of a wireless charging device is shown.

[0027] Fig. 9 for Figure 4 A second exemplary exploded structural diagram of a wireless charging device is shown.

[0028] Fig.10 for Figure 4 A third exemplary exploded structural diagram of a wireless charging device is shown.

[0029] Figure numerals: energy storage device 10, host 11, housing 111, open cavity 1111, avoidance groove 1112, wireless charging device 12, charging mechanism 200, shell 210, bottom shell 211, accommodating cavity 2111, bottom surface 2112, first convection hole 2112a, side circumference 2113, sink 2113a, second convection hole 2113b, first wire hole 2114, top cover 212, charging coil 220, radiator 230, heat conductive member 240, magnetic member 250, bracket 300, base 310, second wire hole 311, connecting seat 320, connecting cavity 321, first rotating shaft 331, second rotating shaft 332, damping shaft 340, driving circuit board 350, contact connector 360. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0031] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0032] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0033] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0034] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0035] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0036] See also Figure 1 , Figure 2 , Figure 3 and Figure 6In one embodiment of the present application, an energy storage device 10 includes a host 11 and a wireless charging device 12. The wireless charging device 12 includes a bracket 300 and a charging mechanism 200. The host 11 includes a housing 111 and a power source, and the power source is arranged in the housing 111. The bracket 300 is detachably connected to the housing 111. For example, the bracket 300 and the housing 111 can be bolted or detachably connected by a snap connection. The charging mechanism 200 includes a shell 210 and a charging coil 220. The shell 210 is provided with a receiving cavity 2111. The shell 210 is rotatably connected to the bracket 300, so that the shell 210 can be stacked on the bracket 300, so that the charging mechanism 200 is in a folded state. When the shell 210 is rotated relative to the bracket 300 by a certain angle from the folded state, the charging mechanism 200 is in an unfolded state. The charging coil 220 is accommodated in the receiving cavity 2111, and the charging coil 220 is electrically connected to the power source in the host 11. When an electronic device such as a mobile phone is placed on the housing 210 , the charging coil 220 can wirelessly charge the mobile phone.

[0037] If the charging coil 220 is disposed in the housing 111 , when the charging coil 220 fails and needs to be replaced, other components in the housing 111 need to be disassembled, which makes the replacement of the charging coil 220 time-consuming and laborious, thereby affecting the convenience of maintaining the energy storage device 10 .

[0038] As for the energy storage device 10 in the above embodiment, since the bracket 300 of the wireless charging device 12 is detachably connected to the housing 111, when the charging coil 220 in the wireless charging device 12 fails and needs to be replaced, the entire wireless charging device 12 can be directly uninstalled from the housing 111, and a new wireless charging device 12 can be installed on the housing 111. In this way, there is no need to disassemble the housing 111 and other components, thereby improving the convenience of maintenance of the entire energy storage device 10.

[0039] See also Figure 4 , Figure 5 and Figure 6In some embodiments, the housing 210 includes a bottom shell 211 and a top cover 212. The bottom shell 211 forms a receiving cavity 2111. The top cover 212 is detachably connected to the bottom shell 211, so that the top cover 212 covers the receiving cavity 2111. The top cover 212 and the bottom shell 211 can be detachably connected by a snap connection. The bottom shell 211 is rotatably connected to the bracket 300, and the top cover 212 is used to carry a mobile phone. When the mobile phone is carried on the top cover 212, the electromagnetic waves generated by the charging coil 220 can be received by the coil in the mobile phone through the top cover 212, so that the charging coil 220 can wirelessly charge the mobile phone. The thickness of the top cover 212 is relatively thin, for example, the thickness of the top cover 212 can be less than 3 mm, and the top cover 212 has sufficient structural strength to effectively carry the mobile phone and avoid deformation of the top cover 212.

[0040] If the charging coil 220 is disposed inside the housing 111, the thickness of the housing 111 is relatively large, for example, the thickness of the housing 111 is usually above 3 mm, and during the charging process of the mobile phone, the mobile phone is placed on the outer surface of the housing 111, and the electromagnetic waves generated by the charging coil 220 are received by the mobile phone through the thicker housing 111, thereby charging the mobile phone. Since the thickness of the housing 111 is relatively large, the distance between the charging coil 220 and the mobile phone is relatively far, which makes the propagation distance of the electromagnetic waves relatively large, thereby affecting the charging efficiency of the charging coil 220 for the mobile phone.

[0041] As for the energy storage device 10 in the above embodiment, since the charging coil 220 is disposed in the charging mechanism 200, the charging coil 220 is received by the mobile phone through the thin top cover 212. Since the top cover 212 is thin, the distance between the charging coil 220 and the mobile phone is relatively close, so that the propagation distance of the electromagnetic wave is reduced, thereby improving the charging efficiency of the charging coil 220 for the mobile phone.

[0042] See also Figure 6 , Figure 7 and Figure 8In some embodiments, the charging mechanism 200 further includes a heat sink 230 and a heat conductor 240. The outer surface of the bottom shell 211 includes a bottom surface 2112 and a side circumferential surface 2113. The orthographic projection of the bottom surface 2112 in the thickness direction of the charging mechanism 200 covers the heat sink 230. It can be understood that the heat sink 230 and the bottom surface 2112 are arranged along the thickness direction of the charging mechanism 200. The side circumferential surface 2113 is connected to the periphery of the bottom surface 2112, so that the side circumferential surface 2113 is arranged around the bottom surface 2112, and the side circumferential surface 2113 is arranged around the accommodating cavity 2111, so the side circumferential surface 2113 is arranged around the charging coil 220, the heat sink 230 and the heat conductor 240. The heat conductive member 240 can be made of a material with a high thermal conductivity. Both sides of the heat conductive member 240 in the thickness direction have a bonding function, so the heat conductive member 240 can also play the role of a double-sided adhesive. The heat conductive member 240 is stacked between the charging coil 220 and the heat sink 230. The heat conductive member 240 is located on the side of the charging coil 220 close to the bottom surface 2112, so the heat sink 230 is also located on the side of the charging coil 220 close to the bottom surface 2112, that is, the heat conductive member 240 and the heat sink 230 are closer to the bottom surface 2112 relative to the charging coil 220. It can be understood that during the charging process, when the temperature of the charging coil 220 is lower than the critical value, the charging coil 220 can charge the mobile phone at full power; as the charging coil 220 continues to work, the temperature of the charging coil 220 rises to exceed the critical value, so that the charging coil 220 charges the mobile phone at a limited power less than the full power, which will affect the time for the mobile phone to be fully charged, thereby reducing the charging efficiency.

[0043] In view of the fact that the radiator 230 and the heat conductor 240 are provided, when the charging coil 220 charges the mobile phone, the heat generated by the charging coil 220 can be quickly transferred to the radiator 230 through the heat conductor 240, so that the radiator 230 can effectively dissipate heat and cool the charging coil 220, thereby making the temperature of the charging coil 220 always lower than the critical temperature, ensuring that the charging coil 220 can always maintain a relatively large full power value to charge the mobile phone, thereby reducing the time it takes to fully charge the mobile phone, thereby improving the charging efficiency of the wireless charging device 12.

[0044] See also Figure 6 , Figure 7 and Figure 8In some embodiments, a first convection hole 2112a is formed on the bottom surface 2112, the number of the first convection holes 2112a is multiple, and the first convection holes 2112a connect the outside and the accommodating cavity 2111, and a second convection hole 2113b is formed on the side surface 2113, the number of the second convection holes 2113b is multiple, and the second convection holes 2113b connect the outside and the accommodating cavity 2111. By providing the first convection hole 2112a and the second convection hole 2113b, the gas and heat in the accommodating cavity 2111 can generate convection through the first convection hole 2112a and the second convection hole 2113b, ensuring that the heat discharged from the radiator 230 into the accommodating cavity 2111 can be quickly discharged through the first convection hole 2112a or the second convection hole 2113b, thereby cooling the radiator 230. This will further improve the heat dissipation effect of the radiator 230 on the charging coil 220, and further improve the charging efficiency of the wireless charging device 12.

[0045] See also Figure 6 , Figure 7 and Figure 8 In some embodiments, the charging mechanism 200 further includes a magnetic member 250, and the magnetic member 250 is located in the accommodating cavity 2111. For example, the magnetic member 250 and the charging coil 220 are both arranged on the same surface of the heat conductive member 240, so that the magnetic member 250 can be arranged around the charging coil 220. When the mobile phone is placed on the top cover 212, the magnetic member 250 will generate a magnetic attraction to the mobile phone, so that the mobile phone is fixed on the top cover 212 by the action of the magnetic attraction, thereby realizing a detachable connection relationship between the mobile phone and the top cover 212. When the wireless charging device 12 is in the unfolded state, the charging mechanism 200 fixes the mobile phone by the magnetic attraction, effectively preventing the mobile phone from sliding off the top cover 212 under the action of gravity and external impact and causing the mobile phone to be unable to charge, thereby improving the reliability of the wireless charging device 12 charging the mobile phone.

[0046] See also Figure 1 , Figure 2 and Figure 6In some embodiments, an open cavity 1111 is formed on the outer surface of the housing 111, and the bracket 300 is fixed in the open cavity 1111. When the housing 210 is stacked on the bracket 300, the wireless charging device 12 is in a folded state, and the wireless charging device 12 in the folded state can be completely accommodated in the open cavity 1111, that is, the wireless charging device 12 can be hidden in the housing 111, thereby improving the overall consistency of the appearance of the energy storage device 10. At the same time, during the process of carrying and storing the energy storage device 10, the wireless charging device 12 exposed outside the housing 111 can be prevented from interfering with and colliding with external objects, and the wireless charging device 12 can be prevented from being damaged, thereby improving the convenience and safety of carrying and storing the energy storage device 10. Of course, when the wireless charging device 12 is completely accommodated in the open cavity 1111, the surface of the top cover 212 can be flush with the surface of the housing 111, further improving the overall consistency of the appearance of the energy storage device 10. When the mobile phone needs to be charged, the charging mechanism 200 can be rotated at a certain angle relative to the bracket 300 so that the top cover 212 of the charging mechanism 200 is located in the open cavity 1111, so that the mobile phone can be fixed on the top cover 212 for charging. Of course, during the charging and non-charging process, the wireless charging device 12 can be in an unfolded state, and the angle of rotation of the charging mechanism 200 relative to the bracket 300 can be appropriately adjusted so that the mobile phone maintains a reasonable angle relative to the user's line of sight, which is convenient for the user to view the content displayed on the mobile phone display. At this time, the wireless charging device 12 plays the role of a fixed frame for supporting the mobile phone.

[0047] See also Figure 2 , Figure 6 and Fig. 9 In some embodiments, a position-avoiding groove 1112 may be provided on the outer surface of the housing 111, and the position-avoiding groove 1112 is connected to the open cavity 1111. The side surface 2113 of the bottom housing 211 may also be recessed to form a sinking groove 2113a. When the housing 210 is in a folded state and accommodated in the open cavity 1111 without charging, the sinking groove 2113a may be connected to the position-avoiding groove 1112. When the housing 210 needs to be rotated so that the charging mechanism 200 is located outside the open cavity 1111, the user's finger can reach the sinking groove 2113a through the position-avoiding groove 1112, thereby facilitating the application of force to the housing 210, thereby improving the convenience of using the wireless charging device 12.

[0048] See also Figure 8 , Fig. 9 and Fig.10In some embodiments, the bracket 300 includes a base 310, a connecting base 320, a first rotating shaft 331, and a second rotating shaft 332. One end of the connecting base 320 is rotatably connected to the bottom shell 211 of the housing 210 through the first rotating shaft 331. For example, the first rotating shaft 331 can be fixed to the connecting base 320 by a snap connection, and the first rotating shaft 331 is rotatably penetrated in the bottom shell 211, so that one end of the connecting base 320 is rotatably connected to the bottom shell 211. The other end of the connecting base 320 is rotatably connected to the base 310 through the second rotating shaft 332. For example, the second rotating shaft 332 can be fixed to the connecting base 320 by a snap connection, and the second rotating shaft 332 is rotatably penetrated in the base 310, so that one end of the connecting base 320 is rotatably connected to the base 310. The axis about which the connection base 320 rotates relative to the housing 210 is the central axis of the first rotation axis 331, and the axis about which the connection base 320 rotates relative to the base 310 is the central axis of the second rotation axis 332. The central axes of the first rotation axis 331 and the second rotation axis 332 are parallel to each other. By providing the bracket 300 with a rotationally connected base 310 and a connection base 320, the base 310, the connection base 320 and the charging mechanism 200 can be stacked on each other along the thickness direction of the charging mechanism 200. Therefore, when the wireless charging device 12 is in a folded state, the base 310, the connection base 320 and the charging mechanism 200 can be stacked on each other, thereby reducing the volume occupied by the wireless charging device 12, so that the folded wireless charging device 12 can be accommodated in the open cavity 1111 of the housing 111.

[0049] See also Figure 8 , Fig. 9 and Fig.10 The connecting seat 320 is rotatably connected between the bottom shell 211 and the base 310. When the mobile phone is placed on the top cover 212, the connecting seat 320 is rotated relative to the bottom shell 211 and the base 310. On the one hand, the height of the mobile phone relative to the surface of the casing 111 can be adjusted, and on the other hand, the angle of the mobile phone relative to the surface of the casing 111 can be adjusted. In this way, the mobile phone can present different angles relative to the casing 111 at different heights, thereby increasing the diversity of the position of the mobile phone relative to the casing 111 and ultimately improving the user experience.

[0050] See also Figure 8 , Fig. 9 and Fig.10In some embodiments, the bracket 300 further includes a damping shaft 340, and the number of the damping shaft 340 may be two, and the two damping shafts 340 are respectively fixedly connected to the opposite ends of the connecting seat 320, for example, they may be fixedly connected by bolt connection. One end of the connecting seat 320 is rotatably connected to the bottom shell 211 through one of the damping shafts 340, and the damping shaft 340 and the first rotating shaft 331 may be inserted into the same rotating hole of the bottom shell 211. One end of the connecting seat 320 is rotatably connected to the bottom shell 211 through another damping shaft 340, and the damping shaft 340 and the second rotating shaft 332 may be inserted into the same rotating hole of the base 310. By providing the damping shaft 340, when the connecting seat 320 rotates relative to the bottom shell 211 and the base 310, the damping shaft 340 can have a good holding force on the connecting seat 320, and when the connecting seat 320 rotates to a set angle, the connecting seat 320 will stably and reliably stay at this position.

[0051] See also Figure 8 , Fig. 9 and Fig.10 In some embodiments, the connection base 320 is a hollow structure, so the cavity in the connection base 320 can be recorded as a connecting cavity 321, and a first wire hole 2114 can be opened in the bottom shell 211, and the first wire hole 2114 connects the accommodating cavity 2111 and the connecting cavity 321. A second wire hole 311 can be opened in the base 310, and the second wire hole 311 and the connecting cavity 321 are connected to each other. After the wire is connected to the charging coil 220, the wire can be sequentially passed through the first wire hole 2114, the connecting cavity 321, and the second wire hole 311. In this way, the wire is hidden in the shell 210, the connection base 320 and the base 310, and the wire is built-in. It can be understood that the first rotating shaft 331 also has a cavity structure inside, and the cavity connects the accommodating cavity 2111 and the connecting cavity 321, so that the wire can extend into the connecting cavity 321 through the accommodating cavity 2111 and the cavity.

[0052] See also Figure 8 , Fig. 9 and Fig.10 In some embodiments, the bracket 300 further includes a driving circuit board 350 and a contact connector 360. The driving circuit board 350 is disposed on the base 310. For example, the driving circuit board 350 can be fixed to the base 310 by bolt connection. The contact connector 360 is disposed on the circuit board, and the wire is electrically connected to the contact connector 360. The contact connector 360 is used to abut against the power source, so that the power source supplies power to the charging coil 220 through the contact connector 360 and the wire, so that the charging coil 220 charges the mobile phone. The contact connector 360 is elastically abutted against the host 11, so that the base 310 and the housing 111 can achieve a detachable connection relationship.

[0053] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A wireless charging device, characterized in that: The wireless charging device comprises: A bracket, the bracket being used for detachably connecting with the host; A charging mechanism, the charging mechanism comprising a shell, a charging coil, a heat sink and a heat conductor, the shell being provided with a receiving cavity, and the shell being rotatably connected to the bracket so that the shell can be stacked on the bracket, the charging coil being accommodated in the receiving cavity; the heat sink being located in the receiving cavity and stacked on the charging coil; the heat conductor being abutted between the heat sink and the charging coil.

2. The wireless charging device according to claim 1, characterized in that: The bracket includes a base and a connecting seat, one end of the connecting seat is rotatably connected to the shell, and the other end of the connecting seat is rotatably connected to the base, the axis around which the connecting seat rotates relative to the shell and the axis around which the connecting seat rotates relative to the base are parallel to each other, and along the thickness direction of the charging mechanism, the base, the connecting seat and the charging mechanism can be stacked on each other.

3. The wireless charging device according to claim 2, characterized in that: The connecting seat has a connecting cavity, the shell also has a first wire passing hole connecting the accommodating cavity and the connecting cavity, the base has a second wire passing hole connecting the connecting cavity, and the wire connected to the charging coil is passed through the first wire passing hole, the connecting cavity and the second wire passing hole.

4. The wireless charging device according to claim 2, characterized in that: The bracket also includes a damping shaft, and the connecting seat is rotatably connected to the shell and the base respectively through different damping shafts.

5. The wireless charging device according to claim 2, characterized in that: The bracket further comprises a driving circuit board and a contact connector. The driving circuit board is arranged on the base, and the contact connector is arranged on the circuit board and is used for elastically abutting against the host.

6. The wireless charging device according to claim 1, characterized in that: The outer surface of the shell includes a bottom surface and a side circumferential surface that are connected to each other. The side circumferential surface is arranged around the bottom surface and the charging coil. The radiator is arranged on a side of the charging coil close to the bottom surface. The orthographic projection of the bottom surface in the thickness direction of the charging mechanism covers the radiator.

7. The wireless charging device according to claim 6, characterized in that: The bottom surface is provided with a first convection hole connected to the accommodating cavity, and the side circumferential surface is provided with a second convection hole connected to the accommodating cavity.

8. The wireless charging device according to claim 1, characterized in that: The charging mechanism further includes a magnetic component, and the magnetic component is located in the accommodating cavity.

9. The wireless charging device according to claim 1, characterized in that: The shell comprises a bottom shell and a top cover, wherein the bottom shell surrounds the accommodating cavity and is connected to the bracket, and the top cover is detachably connected to the bottom shell and covers the accommodating cavity.

10. The wireless charging device according to claim 9, characterized in that: The outer surface of the shell includes a side peripheral surface arranged around the charging coil, and a recessed groove is formed on the side peripheral surface.

11. An energy storage device, characterized in that: The wireless charging device comprises a host and any one of claims 1 to 10, wherein the bracket is detachably connected to the host.

12. The energy storage device according to claim 11, characterized in that: The host comprises a casing, an outer surface of the casing is concavely formed with an open cavity, the bracket is fixed in the open cavity, and when the shell is stacked on the bracket, the wireless charging device can be completely accommodated in the open cavity.

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