Wireless charging transmitter and battery compartment

Abstract

The present invention provides a wireless charging transmitter mechanism, including a shell, a coil, a magnetic isolation sheet, a driving circuit board and an elastic adhesive layer. The coil, the magnetic isolation sheet and the driving circuit board are sequentially accommodated in the shell, the coil is electrically connected to the driving circuit board, the area of ​​the magnetic isolation sheet is greater than or equal to the area occupied by the coil, the magnetic isolation sheet is formed by splicing at least two ferrite sheets, and the elastic adhesive layer is attached to the surface of the magnetic isolation sheet to bond at least two ferrite sheets into a magnetic isolation sheet; a battery compartment is also provided, including a compartment body, a compartment door and a wireless charging transmitter mechanism. The present invention uses at least two ferrite sheets to splice into a magnetic isolation sheet, and the at least two ferrite sheets are bonded into a complete magnetic isolation sheet through an elastic adhesive layer, so that a magnetic isolation sheet with a larger area is not easy to break even if it is subjected to a large external force impact, thereby ensuring the use performance of the magnetic isolation sheet, thereby effectively solving the technical problem that ferrite is not suitable for processing into a magnetic isolation sheet with a larger area.

Description

Technical Field

[0001] The present invention belongs to the technical field of charging devices, and more specifically, relates to a wireless charging transmitter mechanism and a battery compartment. Background Art

[0002] At present, the most mainstream wireless charging technology on the market is electromagnetic induction technology, which uses a certain frequency of alternating current connected to the primary coil (located at the wireless charging transmitter) to make the primary coil generate an interactive magnetic field, and generate a certain current in the secondary coil (located at the wireless charging receiver) through electromagnetic induction, thereby transferring energy from the transmitter to the receiver. In order to allow the magnetic field energy emitted by the primary coil to act on the secondary coil as much as possible, it is necessary to guide the magnetic field of the primary coil through a magnetic isolation sheet. Among them, the wireless charging transmitter usually uses a ferrite sheet sintered at high temperature with high hardness and magnetic permeability as a magnetic isolation sheet. However, since the material of the ferrite sheet is brittle and easy to crack, it is not suitable for processing into a larger area of ​​magnetic isolation sheets, and a small area of ​​magnetic isolation sheets is difficult to completely cover the primary coil, which affects the transmission efficiency of the magnetic field energy and reduces the utilization rate of the magnetic field energy. Summary of the invention

[0003] The object of the present invention is to provide a wireless charging transmitter mechanism and a battery compartment, including but not limited to solving the technical problem that ferrite is not suitable for processing into a larger area magnetic isolation sheet.

[0004] To solve the above technical problems, an embodiment of the present invention provides a wireless charging transmitting mechanism for a battery compartment, comprising a shell, a coil, a magnetic isolation sheet and a driving circuit board, wherein the coil, the magnetic isolation sheet and the driving circuit board are sequentially accommodated in the shell, the coil is electrically connected to the driving circuit board, the area of ​​the magnetic isolation sheet is greater than or equal to the area occupied by the coil, the magnetic isolation sheet is formed by splicing at least two ferrite sheets, and the wireless charging transmitting mechanism also includes an elastic adhesive layer, which is affixed to the surface of the magnetic isolation sheet to bond at least two ferrite sheets into the magnetic isolation sheet.

[0005] Furthermore, a receiving groove is provided on the surface of the magnetic isolation sheet, and the coil is received in the receiving groove.

[0006] Furthermore, the magnetic isolation sheet includes two first ferrite sheets and two second ferrite sheets, and the first ferrite sheets and the second ferrite sheets are symmetrically distributed.

[0007] Furthermore, the wireless charging transmitting mechanism also includes an infrared communication component for matching with the infrared communication component of the battery pack, and the infrared communication component is arranged beside the coil and is electrically connected to the driving circuit board.

[0008] Furthermore, the infrared communication component includes an infrared transmitting terminal, an infrared receiving terminal and a communication circuit board, the infrared transmitting terminal and the infrared receiving terminal are integrated on the communication circuit board, and the communication circuit board is electrically connected to the driving circuit board.

[0009] Furthermore, the wireless charging transmitting mechanism also includes a heat insulation plate and a fan. The heat insulation plate is arranged between the magnetic isolation plate and the driving circuit board to divide the inner cavity of the shell into a first sub-chamber and a second sub-chamber. The coil, the magnetic isolation plate, and the infrared communication component are accommodated in the first sub-chamber, and the driving circuit board is accommodated in the second sub-chamber. There is a first gap between one side edge of the heat insulation plate and the inner surface of the shell. An air inlet is provided on the side wall of the shell away from the first gap, and the air inlet is connected to the first sub-chamber. An air outlet is provided on the side wall of the shell facing the driving circuit board, and the air outlet is connected to the second sub-chamber. The fan is sealed on the outside of the air outlet.

[0010] Furthermore, a second gap is provided between an edge of one side of the driving circuit board away from the first gap and an inner surface of the housing.

[0011] The beneficial effect of the wireless charging transmitting mechanism provided by the present invention is that at least two ferrite sheets are spliced ​​into a magnetic isolation sheet, and the at least two ferrite sheets are bonded into a complete magnetic isolation sheet through an elastic adhesive layer, so that a magnetic isolation sheet with a larger area is not easily broken even if it is subjected to a large external force impact, thereby ensuring the performance of the magnetic isolation sheet, thereby effectively solving the technical problem that ferrite is not suitable for processing into a magnetic isolation sheet with a larger area, ensuring that the magnetic isolation sheet can completely cover the coil, and improving the utilization rate of the magnetic field energy generated by the coil.

[0012] An embodiment of the present invention provides a battery compartment, comprising a compartment body, a compartment door and the above-mentioned wireless charging transmitting mechanism, wherein the compartment door is hinged on the first end of the compartment body and can cover the opening of the compartment body, the compartment body and the compartment door can be enclosed to form a accommodating cavity for accommodating the battery pack, the shell is fastened to the second end of the compartment body, and the infrared communication component, the coil, the magnetic isolation sheet and the heat insulation board are fixed on the outer surface of the second end of the compartment body.

[0013] Furthermore, the battery compartment also includes a travel switch, which is arranged on the second end of the compartment body, and the contact of the travel switch extends into the accommodating cavity, and the travel switch is electrically connected to the driving circuit board.

[0014] Furthermore, the battery compartment also includes an electronic lock, which is arranged on an edge of the compartment body close to the opening and can lock the compartment door, and the electronic lock is electrically connected to the driving circuit board.

[0015] The beneficial effect of the battery compartment provided by the present invention is that a wireless charging transmitting mechanism is adopted, and at least two ferrite sheets are bonded into a complete magnetic isolation sheet through an elastic adhesive layer, so that a magnetic isolation sheet with a larger area is not easily broken even if it is subjected to a large external force impact, thereby ensuring the performance of the magnetic isolation sheet, thereby effectively solving the technical problem that ferrite is not suitable for processing into a magnetic isolation sheet with a larger area, ensuring that the magnetic isolation sheet can completely cover the coil, and improving the utilization rate of the magnetic field energy generated by the coil. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 A three-dimensional schematic diagram of a battery compartment provided in an embodiment of the present invention;

[0018] Figure 2 A three-dimensional exploded schematic diagram of a wireless charging transmitter mechanism in a battery compartment provided by an embodiment of the present invention;

[0019] Figure 3 A three-dimensional schematic diagram of a coil and a magnetic isolation sheet in a wireless charging transmitter mechanism provided by an embodiment of the present invention;

[0020] Figure 4 An exploded schematic diagram of a magnetic separator in a wireless charging transmitter mechanism provided by an embodiment of the present invention;

[0021] Figure 5 A partial exploded schematic diagram of a battery compartment provided in an embodiment of the present invention;

[0022] Figure 6 for Figure 5 A magnified schematic diagram of part A;

[0023] Figure 7 A schematic longitudinal section diagram of a wireless charging transmitter mechanism in a battery compartment provided in an embodiment of the present invention.

[0024] Among them, the reference numerals in the figure are:

[0025] 1—battery compartment, 10—compartment body, 20—wireless charging transmitter mechanism, 30—compartment door, 40—formation switch, 50—electronic lock, 21—housing, 22—coil, 23—magnetic isolation sheet, 24—driving circuit board, 25—elastic adhesive layer, 26—infrared communication component, 27—heat insulation board, 28—fan, 100—accommodation chamber, 201—first sub-chamber, 202—second sub-chamber, 203—air inlet, 204—air outlet, 205—first gap, 206—second gap, 210—heat dissipation tooth, 230—accommodation groove, 231—first ferrite sheet, 232—second ferrite sheet, 261—infrared transmitting terminal, 262—infrared receiving terminal, 263—communication circuit board. DETAILED DESCRIPTION

[0026] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0027] It should be noted that when a component is referred to as being "fixed on" or "disposed on" another component, it may be directly on the other component or indirectly on the other component. When a component is referred to as being "connected to" another component, it may be directly or indirectly connected to the other component. The orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of 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. Therefore, it cannot be understood as a limitation of this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances. The terms "first", "second", etc. are only used for the purpose of convenience of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. The term "multiple" means two or more, unless otherwise clearly and specifically defined.

[0028] The wireless charging transmitting mechanism provided by the present invention is now described.

[0029] See also Figures 1 to 4The wireless charging transmitter mechanism 20 used on the battery compartment 1 includes a shell 21, a coil 22, a magnetic isolation sheet 23, a driving circuit board 24 and an elastic adhesive layer 25, wherein the coil 22, the magnetic isolation sheet 23 and the driving circuit board 24 are sequentially accommodated in the shell 21, the coil 22 is electrically connected to the driving circuit board 24, the area of ​​the magnetic isolation sheet 23 is greater than or equal to the occupied area of ​​the coil 22, and the magnetic isolation sheet 23 is formed by splicing at least two ferrite sheets, and the elastic adhesive layer 25 is attached to the surface of the magnetic isolation sheet 23 to bond at least two ferrite sheets into a complete magnetic isolation sheet 23. Here, the elastic adhesive layer 25 can be selected as tape or film, and can be attached to the surface of the magnetic isolation sheet 23 facing away from the coil 22, or attached to the front and back surfaces of the magnetic isolation sheet 23, and the area of ​​the elastic adhesive layer 25 is consistent with the area of ​​the magnetic isolation sheet 23. Of course, according to specific circumstances and requirements, in other embodiments of the present invention, the area of ​​the elastic adhesive layer 25 can also be slightly larger than the area of ​​the magnetic isolation sheet 23, which is not the only limitation here.

[0030] It can be understood that, since the elastic adhesive layer 25 has a certain elasticity, when the magnetic isolation sheet 23 coated with the elastic adhesive layer 25 is subjected to a large external force impact, the magnetic isolation sheet 23 can avoid other parts from breaking by bending at the joint between two adjacent ferrite sheets. At this time, the elastic adhesive layer 25 is stretched, that is, part of the kinetic energy generated by the external force is absorbed by the deformation of the elastic adhesive layer 25, and the other part is converted into the internal energy of the elastic adhesive layer 25. When the external force is eliminated, the internal energy of the elastic adhesive layer 25 is released, the elastic adhesive layer 25 contracts, and the magnetic isolation sheet 23 can be restored to a flat state under the traction of the elastic adhesive layer 25; or even if the magnetic isolation sheet 23 is broken, the small fragments produced after the breakage will still stick to the elastic adhesive layer 25, and the overall appearance of the magnetic isolation sheet 23 will not change significantly, and will not affect the magnetic isolation, thermal conductivity and other performance of the magnetic isolation sheet 23.

[0031] The wireless charging transmitting mechanism 20 provided by the present invention adopts at least two ferrite sheets to splice into a magnetic isolation sheet 23, and the at least two ferrite sheets are bonded into a complete magnetic isolation sheet 23 through an elastic adhesive layer 25, so that the magnetic isolation sheet 23 with a larger area is not easy to break even if it is subjected to a large external force impact, thereby ensuring the performance of the magnetic isolation sheet 23, thereby effectively solving the technical problem that ferrite is not suitable for processing into a magnetic isolation sheet with a larger area, ensuring that the magnetic isolation sheet 23 can completely cover the coil 22, and improving the utilization rate of the magnetic field energy generated by the coil 22.

[0032] For further information, see Figure 3As a specific embodiment of the wireless charging transmitting mechanism provided by the present invention, a receiving groove 230 is provided on the surface of the magnetic isolation sheet 23, and the coil 22 is received in the receiving groove 230. Specifically, the outer contour of the magnetic isolation sheet 23 is in the shape of a plate with a flange around the periphery, the receiving groove 230 is recessed in the middle of the surface of the magnetic isolation sheet 23, and the depth of the receiving groove 230 is equal to or greater than the thickness of the coil 22, which means that except for the transmitting surface facing the wireless charging receiving mechanism, the other surfaces of the coil 22 are blocked by the magnetic isolation sheet 23, thereby ensuring that more than 95% of the energy of the magnetic field generated by the coil 22 is transmitted to the wireless charging receiving mechanism, effectively improving the utilization rate of the magnetic field energy.

[0033] For further information, see Figure 4 As a specific embodiment of the wireless charging transmitter mechanism provided by the present invention, the magnetic isolation sheet 23 includes two first ferrite sheets 231 and two second ferrite sheets 232, wherein the first ferrite sheets 231 and the second ferrite sheets 232 are symmetrically distributed. Specifically, the two first ferrite sheets 231 and the two second ferrite sheets 232 are respectively diagonally distributed, so that when producing and processing the ferrite sheets, only two shapes of molds are required, which effectively saves the production cost of the magnetic isolation sheet 23, and because the two first ferrite sheets 231 and the two second ferrite sheets 232 are spliced ​​to form a cross-shaped splicing seam, the magnetic isolation sheet 23 can at least be bent in the up and down and left and right directions, thereby improving the anti-fragmentation ability of the magnetic isolation sheet 23. Of course, depending on the specific situation and needs, in other embodiments of the present invention, the shape of the first ferrite sheet 231 can be consistent with the shape of the second ferrite sheet 232, and the magnetic isolation sheet 23 can include multiple first ferrite sheets 231 and multiple second ferrite sheets 232, which is not a sole limitation here.

[0034] For further information, see Figure 2 and Figure 5As a specific embodiment of the wireless charging transmitting mechanism provided by the present invention, the wireless charging transmitting mechanism 20 also includes an infrared communication component 26 for matching with the infrared communication component of the battery pack, and the infrared communication component 26 is arranged beside the coil 22, and the infrared communication component 26 is electrically connected to the driving circuit board 24. Specifically, the infrared communication component 26 can be accommodated in the housing 21, or extend out of the housing 21, and can achieve communication handshake with the wireless charging receiving mechanism of the battery pack by transmitting and receiving infrared signals, so that the driving circuit board 24 can diagnose the health status of the battery pack, such as: the capacity of the battery cell, the current power status, whether the circuit is running normally, etc., and adjust the power supply parameters according to the specific health status of the battery pack, thereby ensuring the effectiveness and safety of the power supply of the wireless charging transmitting mechanism 20. Here, the wireless charging transmitter mechanism 20 may include two groups of infrared communication components 26, and the two groups of infrared communication components 26 are respectively distributed on opposite sides of the coil 22, so that even if the user reverses the placement direction of the battery pack, it can ensure that the wireless charging transmitter mechanism 20 and the battery pack can achieve communication handshake, and two groups of infrared communication components can also be set on the battery pack, so that even if the wireless charging transmitter mechanism 20 or one of the infrared communication components of the battery pack is damaged, it can ensure that the wireless charging transmitter mechanism 20 and the battery pack can achieve communication handshake.

[0035] For further information, see Figure 6 As a specific implementation of the wireless charging transmitting mechanism provided by the present invention, the infrared communication component 26 includes an infrared transmitting terminal 261, an infrared receiving terminal 262 and a communication circuit board 263, wherein the infrared transmitting terminal 261 and the infrared receiving terminal 262 are integrated on the communication circuit board 263, and the communication circuit board 263 is electrically connected to the driving circuit board 24. Specifically, the communication circuit board 263 is accommodated in the shell 21, and the infrared transmitting terminal 261 and the infrared receiving terminal 262 are protruded on the communication circuit board 263 and face the outside of the shell 21; the communication circuit board 263 converts the instructions of the driving circuit board 24 into infrared rays through the infrared transmitting terminal 261 and transmits them to the infrared receiving terminal of the battery pack. At the same time, the communication circuit board 263 converts the infrared rays received by the infrared transmitting terminal of the battery pack into electronic signals through the infrared receiving terminal 262 and transmits them to the driving circuit board 24, thereby realizing the communication handshake between the wireless charging transmitting mechanism 20 and the battery pack, so that the driving circuit board 24 can diagnose the health status of the battery pack and adjust the power supply parameters according to the specific health status of the battery pack, thereby ensuring the effectiveness and safety of power supply of the wireless charging transmitting mechanism 20.

[0036] For further information, see Figure 7As a specific embodiment of the wireless charging transmitter mechanism provided by the present invention, the wireless charging transmitter mechanism 20 also includes a heat insulation board 27 and a fan 28, wherein the heat insulation board 27 is arranged between the magnetic isolation sheet 23 and the driving circuit board 24, so as to divide the inner cavity of the shell 21 into a first sub-chamber 201 and a second sub-chamber 202, wherein the coil 22, the magnetic isolation sheet 23, and the infrared communication component 26 are accommodated in the first sub-chamber 201, and the driving circuit board 24 is accommodated in the second sub-chamber 202, and a first gap 205 is provided between an edge of one side of the heat insulation board 27 and the inner surface of the shell 21, an air inlet 203 is provided on the side wall of the shell 21 away from the first gap 205, and the air inlet 203 is communicated with the first sub-chamber 201, and an air outlet 204 is provided on the side wall of the shell 21 facing the driving circuit board 24, and the air outlet 204 is communicated with the second sub-chamber 202, and the fan 28 is sealed on the outside of the air outlet 204. Specifically, the housing 21 is made of aluminum alloy material, the side wall of the housing 21 where the air inlet 203 is located is adjacent to the side wall of the housing 21 where the air outlet 204 is located, and the air inlet 203 and the first gap 205 are respectively located on opposite sides of the heat insulation board 27, and the first sub-chamber 201 is connected with the second sub-chamber 202 through the first gap 205. During the operation of the wireless charging transmitter 20, the fan 28 runs to accelerate the convection of air inside and outside the housing 21, thereby forming an airflow, which first flows into the first sub-chamber 201 from the air inlet 203, then flows into the second sub-chamber 202 from the first gap 205 after passing through the coil 22 and the magnetic isolation sheet 23, and then flows out of the housing 21 from the air outlet 204 after passing through the driving circuit board 24, thereby cooperating with the housing 21 to quickly dissipate the heat generated by the coil 22 and the driving circuit board 24, effectively improving the heat dissipation effect of the wireless charging transmitter 20.

[0037] For further information, see Figure 7As a specific embodiment of the wireless charging transmitting mechanism provided by the present invention, a second gap 206 is provided between an edge of the driving circuit board 24 on one side away from the first gap 205 and the inner surface of the shell 21, that is, except for the edge on the side where the second gap 206 is located, the other edges of the driving circuit board 24 are sealed with the inner surface of the shell 21. Specifically, the driving circuit board 24 can divide the second sub-chamber 202 into two sub-chambers, front and rear, wherein the front sub-chamber is connected with the first sub-chamber 201 through the first gap 205, and is connected with the rear sub-chamber through the second gap 206, and the rear sub-chamber is connected with the fan 28, wherein the first gap 205 and the second gap 206 are respectively located on opposite sides of the front sub-chamber; since the heating elements on the driving circuit board 24 are mainly located in the front sub-chamber, it can be ensured that when the fan 28 is running, the airflow flowing from the first sub-chamber 201 into the front sub-chamber completely passes through the heating elements on the driving circuit board 24, and then is drawn out of the shell 21 from the rear sub-chamber through the fan 28, thereby bringing the heat generated by the heating elements during operation out of the shell 21, thereby effectively improving the heat dissipation efficiency of the driving circuit board 24.

[0038] See also Figure 1 , Figure 2 and Figure 7 The battery compartment 1 provided by the present invention includes a compartment body 10, a compartment door 30 and a wireless charging transmitter mechanism 20, wherein the compartment door 30 is hinged on the first end of the compartment body 10 and can cover the opening of the compartment body 10, the compartment body 10 and the compartment door 30 can be enclosed to form a accommodating cavity 100 for accommodating a battery pack, the shell 21 of the wireless charging transmitter mechanism 20 is fastened to the second end of the compartment body 10, and the infrared communication component 26, the coil 22, the magnetic isolation sheet 23 and the heat insulation board 27 are fixed on the outer surface of the second end of the compartment body 10. Specifically, an avoidance hole is opened on the second end of the warehouse body 10, the communication circuit board 263 of the infrared communication component 26 is fixed on the outer surface of the second end of the warehouse body 10, the infrared transmitting terminal 261 and the infrared receiving terminal 262 of the infrared communication component 26 are distributed on the outside of the avoidance hole, the heat insulation board 27 is fastened to the second end of the warehouse body 10, the coil 22 and the magnetic isolation sheet 23 are pressed on the outer surface of the second end of the warehouse body 10 by the heat insulation board 27, the shell 21 covers the outer side of the infrared communication component 26, the coil 22, the magnetic isolation sheet 23 and the heat insulation board 27, the elastic adhesive layer 25 is attached to the surface of the magnetic isolation sheet 23, and the driving circuit board 24 is fixed in the shell 21.

[0039] It can be understood that the wireless charging transmitter mechanism 20 can be connected to the control circuit board and external power supply of the equipment equipped with the battery compartment 1 (such as: battery exchange cabinet) respectively through the communication interface and power interface integrated on the driving circuit board 24.

[0040] The battery compartment 1 provided by the present invention adopts a wireless charging transmitting mechanism 20, and at least two ferrite sheets are bonded into a complete magnetic isolation sheet 23 through an elastic adhesive layer 25, so that the magnetic isolation sheet 23 with a larger area is not easy to break even if it is subjected to a large external force impact, thereby ensuring the performance of the magnetic isolation sheet 23, thereby effectively solving the technical problem that ferrite is not suitable for processing into a magnetic isolation sheet with a larger area, ensuring that the magnetic isolation sheet 23 can completely cover the coil 22, and improving the utilization rate of the magnetic field energy generated by the coil 22.

[0041] For further information, see Figure 2 and Figure 5 As a specific embodiment of the battery compartment provided by the present invention, the battery compartment 1 further includes a travel switch 40, which is arranged on the second end of the compartment body 10, and the contact of the travel switch 40 extends into the accommodating cavity 100, and the travel switch 40 is electrically connected to the driving circuit board 24. In this way, when the battery pack is placed in the accommodating cavity 100 of the battery compartment 1 and touches the contact of the travel switch 41, the driving circuit board 24 can be triggered to energize the coil 22 to realize wireless power supply to the battery pack, thereby ensuring that the battery pack is placed in place and the coil 22 is in an effective activation state, preventing the battery pack from affecting the normal subsequent operations such as closing the compartment door 30, avoiding the coil 22 from always being in an energized state, saving electricity costs, and effectively extending the service life of the wireless charging transmitter mechanism 20.

[0042] For further information, see Figure 2 and Figure 5 As a specific embodiment of the battery compartment provided by the present invention, the battery compartment 1 further includes an electronic lock 50, which is arranged on the edge of the compartment body 10 close to its opening, and the electronic lock 50 can lock the compartment door 30, and the electronic lock 50 is electrically connected to the driving circuit board 24. Specifically, a lock ring is convexly provided on the inner surface of the compartment door 30, and the lock ring can be inserted into the electronic lock 50 and locked with the electronic lock 50. When the compartment door 30 is closed and the lock ring is inserted into the electronic lock 50, the electronic lock 50 will send a signal to the driving circuit board 24, and the driving circuit board 24 will energize the coil 22 to realize wireless power supply to the battery pack only after receiving the locking signal, thereby ensuring that the battery pack is charged in a safe state.

[0043] The above are only optional embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A wireless charging transmitter mechanism, used on a battery compartment, comprising a housing, a coil, a magnetic isolation sheet and a driving circuit board, wherein the coil, the magnetic isolation sheet and the driving circuit board are sequentially accommodated in the housing, and the coil is electrically connected to the driving circuit board, characterized in that: The area of ​​the magnetic isolation sheet is greater than or equal to the occupied area of ​​the coil, and the magnetic isolation sheet is formed by splicing at least two ferrite sheets. The wireless charging transmitter mechanism also includes an elastic adhesive layer, which is attached to the surface of the magnetic isolation sheet to bond at least two ferrite sheets into the magnetic isolation sheet; A receiving groove is provided on the surface of the magnetic isolation sheet, the coil is received in the receiving groove, and the depth of the receiving groove is equal to or greater than the thickness of the coil; The magnetic isolation sheet includes two first ferrite sheets and two second ferrite sheets, the first ferrite sheets and the second ferrite sheets are symmetrically distributed, and the two first ferrite sheets and the two second ferrite sheets are diagonally distributed respectively; The wireless charging transmitting mechanism also includes an infrared communication component for matching with the infrared communication component of the battery pack, wherein the infrared communication component is arranged beside the coil and is electrically connected to the driving circuit board; The infrared communication component includes an infrared transmitting terminal, an infrared receiving terminal and a communication circuit board, wherein the infrared transmitting terminal and the infrared receiving terminal are integrated on the communication circuit board, and the communication circuit board is electrically connected to the driving circuit board; the communication circuit board converts the instruction of the driving circuit board into infrared rays through the infrared transmitting terminal and transmits it to the infrared receiving terminal of the battery pack, and converts the infrared rays received by the infrared transmitting terminal of the battery pack into electronic signals and transmits them to the driving circuit board through the infrared receiving terminal; The wireless charging transmitting mechanism also includes a heat insulation plate and a fan, wherein the heat insulation plate is arranged between the magnetic isolation plate and the driving circuit board to divide the inner cavity of the shell into a first sub-chamber and a second sub-chamber, the coil, the magnetic isolation plate, and the infrared communication component are accommodated in the first sub-chamber, and the driving circuit board is accommodated in the second sub-chamber, a first gap is provided between one side edge of the heat insulation plate and the inner surface of the shell, an air inlet is provided on the side wall of the shell away from the first gap, and the air inlet is communicated with the first sub-chamber, an air outlet is provided on the side wall of the shell facing the driving circuit board, and the air outlet is communicated with the second sub-chamber, and the fan is sealed on the outside of the air outlet; A second gap is defined between an edge of the driving circuit board that is away from the first gap and an inner surface of the housing.

2. A battery compartment, characterized in that: It includes a warehouse body, a warehouse door and the wireless charging transmitting mechanism as described in claim 1, the warehouse door is hinged on the first end of the warehouse body and covers the opening of the warehouse body, the warehouse body and the warehouse door together form a receiving cavity for accommodating the battery pack, the shell is fastened to the second end of the warehouse body, and the infrared communication component, the coil, the magnetic isolation sheet and the heat insulation board are fixed on the outer surface of the second end of the warehouse body.

3. The battery compartment according to claim 2, characterized in that: It also includes a travel switch, which is arranged on the second end of the bin body, the contact of the travel switch extends into the accommodating cavity, and the travel switch is electrically connected to the driving circuit board.

4. The battery compartment according to claim 3, characterized in that: It also includes an electronic lock, which is arranged on the edge of the warehouse body close to the opening and locks the warehouse door. The electronic lock is electrically connected to the driving circuit board.

Images