Charging device

Abstract

The utility model is suitable for the technical field of batteries, and provides a charging device which comprises a shell, one or more battery monomers arranged in the shell, and a first discharging interface and a second discharging interface which are arranged on the shell, the first discharging interface and the second discharging interface are connected to positive terminals of the battery monomers in parallel, and the first discharging interface and the second discharging interface are connected to negative terminals of the battery monomers in parallel. And a negative terminal connected in parallel to each battery cell, the first discharge interface and the second discharge interface being different in type. The charging device can supply power to the first type of electronic equipment through the first discharging interface and can supply power to the second type of electronic equipment through the second discharging interface, and the first discharging interface and the second discharging interface do not influence each other to work. The charging device has a wider and more flexible use mode, recycling of resources is facilitated, the charging device used in the first type of electronic equipment can be temporarily taken out and temporarily supplies power to other electronic equipment through the second discharging interface, and various power supply requirements are met.

Description

Technical Field

[0001] The present application relates to the technical field of batteries, and particularly to a charging device. Background Art

[0002] At present, battery energy storage technology is constantly developing, and batteries are more and more widely used in various electronic devices. According to the different application scenarios of the battery, different electronic devices, and the different reserved spaces inside the electronic devices, the batteries are usually of different structures and sizes. Generally, the battery used in an electronic device has no other available ways, including being unable to adapt to other electronic devices. For example, after the electronic device is scrapped, the battery inside it is generally classified as special waste for recycling. This significantly increases the treatment of hazardous waste and is not conducive to the recycling of resources. Utility Model Content

[0003] The purpose of the embodiments of the present application is to provide a charging device, aiming to solve the technical problem of the single use way of the existing battery and the resulting waste of resources.

[0004] The embodiments of the present application are implemented as follows. A charging device includes a housing, one or more battery cells disposed in the housing, and a first discharge interface and a second discharge interface disposed on the housing;

[0005] The first discharge interface and the second discharge interface are connected in parallel to the positive connection terminals of the battery cells and in parallel to the negative connection terminals of the battery cells;

[0006] The types of the first discharge interface and the second discharge interface are different.

[0007] In one embodiment, a first through hole and a second through hole are provided on the housing, at least a part of the first discharge interface is disposed in the first through hole, and at least a part of the second discharge interface is disposed in the second through hole.

[0008] In one embodiment, the housing includes two relatively arranged half shells, a first cover connected to one end of the two half shells, and a second cover connected to the other end of the two half shells; the first through hole is provided between one half shell and the first cover; the second through hole is provided between the two half shells.

[0009] In one embodiment, the charging device further includes a pull rope disposed on the outer surface of the second cover.

[0010] In one embodiment, the charging device further includes a circuit board disposed within the housing. The circuit board is provided with traces. The positive connection terminals and negative connection terminals of each battery cell are connected to one end of the traces, and the first discharge interface and the second discharge interface are connected in parallel to the other end of the traces.

[0011] In one embodiment, the first discharge interface and the second discharge interface are respectively located on opposite sides of the circuit board.

[0012] In one embodiment, the battery cell is a cylindrical battery cell or a square battery cell; the battery cell is a soft-pack battery cell, or the housing is a hard metal housing; the battery cell is one or more of a nickel-metal hydride battery cell, a nickel-cadmium battery, a lead-acid battery cell, a lithium-ion battery cell, and a polymer lithium-ion battery cell.

[0013] In one embodiment, the first discharge interface is a blade-type connector; the second discharge interface is a USB Type-A interface, a USB Type-C interface, or a Micro USB interface.

[0014] In one embodiment, the first discharge interface and / or the second discharge interface is flush with or recessed inward relative to the outer surface of the housing.

[0015] In one embodiment, a part of the housing is openable; wherein, at least one of the battery cells further includes an electric core and a third discharge interface, and the third discharge interface is connected in parallel to the positive connection terminal and the negative connection terminal of the battery cell to the electric core.

[0016] The beneficial effects of the charging device provided by the embodiments of the present application are as follows:

[0017] The charging device provided by the embodiments of the present application includes a housing, one or more battery cells disposed within the housing, and a first discharge interface and a second discharge interface disposed on the housing. The first discharge interface and the second discharge interface are connected in parallel to the positive connection terminals of each battery cell and are connected in parallel to the negative connection terminals of each battery cell, and the types of the first discharge interface and the second discharge interface are different. Thus, through the first discharge interface, the charging device can be used to supply power to a first type of electronic device, and through the second discharge interface, the charging and discharging device can be used to supply power to a second type of electronic device, and the first discharge interface and the second discharge interface do not affect each other's operations. Thus, the charging device has a more extensive and flexible usage method, which is beneficial to the recycling and reuse of resources. In an emergency, the charging device used in the first type of electronic device can be temporarily taken out and used to supply power to other electronic devices through the second discharge interface to meet various power supply requirements. Description of the Drawings

[0018] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a three-dimensional assembly schematic diagram of the charging device provided by the embodiment of the present application;

[0020] Figure 2 It is a three-dimensional exploded schematic diagram of the charging device provided by the embodiment of the present application;

[0021] Figure 3 It is a cross-sectional schematic diagram of the charging device provided by the embodiment of the present application and is in a disassembled state;

[0022] Figure 4 It is a cross-sectional schematic diagram of a battery cell in the charging device provided by the embodiment of the present application;

[0023] Figure 5 It is an equivalent circuit diagram of the charging device provided by the embodiment of the present application;

[0024] Figure 6 It is another equivalent circuit diagram of the charging device provided by the embodiment of the present application.

[0025] The meanings of the marks in the figure are:

[0026] 100 - charging device;

[0027] 2 - housing, 21 - half shell, 22 - first cover, 23 - second cover, 24 - first through hole, 240 - first recessed part, 25 - second through hole, 250 - second recessed part;

[0028] 3 - battery cell, 31 - positive connection terminal, 32 - negative connection terminal, 33 - battery core, 34 - third discharge interface;

[0029] 4 - first discharge interface;

[0030] 5 - second discharge interface;

[0031] 6 - pull rope;

[0032] 7 - circuit board;

[0033] 81 - positive pin, 82 - negative pin. Detailed implementation manners

[0034] To make the objectives, technical solutions and advantages of the present application more clear and understandable, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0035] It should be noted that when a component is referred to as "fixed to" or "disposed on" another component, it can be directly or indirectly fixed or disposed on the other component. When a component is referred to as "connected to" another component, it can be directly or indirectly connected to the other component. The orientation or positional relationship indicated by terms such as "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, rather than indicating or implying 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 of this patent. The terms "first" and "second" are only used for the purpose of convenient description, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of technical features. The meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0036] To illustrate the technical solutions described in the present application, the following will be described in detail with reference to specific accompanying drawings and embodiments.

[0037] The technical personnel of the present application thought that if a way could be provided to realize the multi-purpose use of the battery in the electronic device, it would improve the component recycling rate of the electronic device and the effective utilization of resources. In particular, it could also provide emergency power supply in case of emergency.

[0038] Please refer to Figure 1 and Figure 2 As shown, an embodiment of the present application provides a charging device 100, which includes a housing 2, one or more battery cells 3 disposed in the housing 2, and a first discharge interface 4 and a second discharge interface 5 disposed on the housing 2; please refer to Figure 5 and Figure 6 As shown, both the first discharge interface 4 and the second discharge interface 5 include a positive pin 81 and a negative pin 82. The two positive pins 81 are connected in parallel to the positive connection terminals 31 of the respective battery cells 3, and the two negative pins 82 are connected in parallel to the negative connection terminals 32 of the respective battery cells 3; and, the types of the first discharge interface 4 and the second discharge interface 5 are different.

[0039] It can be understood that since the types of the first discharge interface 4 and the second discharge interface 5 are different, the structures of the two positive pins 81 are different, and the structures of the two negative pins 82 are different.

[0040] When the charging device 100 is used to supply power to an electronic device, it is possible to select to use the first discharge interface 4 or the second discharge interface 5 for power supply according to the type of the electronic device and the type of the electrical connection port.

[0041] For example, through the first discharge interface 4, the charging device 100 can be used to supply power to a first type of electronic device, and through the second discharge interface 5, the charging and discharging device can be used to supply power to a second type of electronic device, and the first discharge interface 4 and the second discharge interface 5 do not affect each other's operations. In this way, the charging device 100 has a more extensive and flexible usage method, which is beneficial to the recycling and reuse of resources. In an emergency, the charging device 100 used in the first type of electronic device can be temporarily taken out and used to supply power to other electronic devices through the second discharge interface 5 to meet various power supply requirements.

[0042] Specifically, for example, the first discharge interface 4 is adapted to a laptop computer, a digital camera, etc. Taking a digital camera as an example, the charging device 100 is suitable for being installed in the digital camera to supply power to it. In an emergency, when other components of the digital camera are scrapped, or when the digital camera does not need a battery temporarily (such as when it does not need to work), the charging device 100 can be removed from the digital camera. Then, the second discharge interface 5 is connected to another electronic device (such as a mobile phone, a tablet computer, etc.), and the charging device 100 can charge the mobile phone, the tablet computer, etc. At this time, the charging device 100 can be used as a mobile power bank for users. Therefore, the charging device 100 can be effectively recycled, can also meet various and temporary power supply requirements, and also saves the cost for users to purchase an additional mobile power source.

[0043] Of course, the above is only an example, and the charging device 100 is not limited to being used for conversion and utilization among laptop computers, digital cameras, mobile phones, and tablet computers.

[0044] Inside the charging device 100, the type, size, etc. of the battery cell 3 are not limited.

[0045] In an embodiment of the present application, the battery cell 3 can be a secondary battery, and after its discharge, the active substances can be activated and continue to be used by charging it. At this time, each battery cell 3 can be charged by connecting an external power source to the first discharge interface 4 or the second discharge interface 5.

[0046] In other alternative embodiments, each battery cell 3 can be a primary battery.

[0047] The battery cell 3 is the basic unit for realizing the mutual conversion between chemical energy and electrical energy.

[0048] Such as Figure 4As shown, the battery cell 3 includes a battery core 33, a positive terminal 31, and a negative terminal 32. The positive electrode plate of the battery core 33 is connected to the positive terminal 31, and the negative electrode plate of the battery core 33 is connected to the negative terminal 32.

[0049] The battery core 33 of the battery cell 3 is the core component for realizing its charge and discharge functions. According to the different materials of the battery core 33 and electrochemical reactions, the battery cell 3 is different types of batteries.

[0050] For example, the battery cell 3 is a nickel-cadmium battery, a nickel-metal hydride battery, a lead-acid battery, a lithium-ion battery, or a polymer lithium-ion battery, etc.

[0051] Taking the lithium-ion battery as an example, inside the battery core 33, the positive electrode plate and the negative electrode plate of the battery core 33 are isolated and insulated from each other by a separator. The battery cell 3 mainly operates by the movement of metal ions between the positive electrode plate and the negative electrode plate. The positive electrode plate includes a positive current collector and a positive active material layer (both not shown). The positive active material layer is coated on the surface of the positive current collector. The positive current collector without the coated positive active material layer protrudes from the positive current collector with the coated positive active material layer. The positive current collector without the coated positive active material layer serves as the positive electrode tab. The negative electrode plate includes a negative current collector and a negative active material layer. The negative active material layer is coated on the surface of the negative current collector. The negative current collector without the coated negative active material layer protrudes from the negative current collector with the coated negative active material layer. The negative current collector without the coated negative active material layer serves as the negative electrode tab.

[0052] In order to ensure that it does not fuse when passing a large current, the number of positive electrode tabs is multiple and stacked together, and the number of negative electrode tabs is multiple and stacked together.

[0053] The material of the separator can be PP (polypropylene) or PE (polyethylene), etc.

[0054] In addition, the positive electrode plate and the negative electrode plate in the battery core 33 can be in a wound structure or a stacked structure, and the embodiments of the present application do not particularly limit this.

[0055] Taking the lithium-ion battery as an example, the material of the positive current collector can be aluminum, and the positive active material can be lithium cobaltate, lithium iron phosphate, lithium nickel cobalt manganese, or lithium manganate, etc. The material of the negative current collector can be copper, and the negative active material can be carbon or silicon, etc.

[0056] In a specific embodiment, the battery cell 3 is a lithium-ion battery.

[0057] In one embodiment, the battery cell 3 is a cylindrical battery, a rectangular battery, a flat battery, or a battery of other shapes, etc. The embodiments of the present application do not particularly limit this.

[0058] In a specific embodiment, see Figure 2 and Figure 4 As shown, the battery cell 3 is a cylindrical battery.

[0059] In one embodiment, the battery cell 3 is a soft pack battery, that is, its outer shell is a soft material layer. Alternatively, the outer shell of the battery cell 3 is a hard material layer, for example, the outer shell is a metal material, or a non-metallic hard material.

[0060] In an optional embodiment, the outer shell of the battery cell 3 is made of metal material, such as steel or aluminum. In this case, the negative electrode tab of the battery cell 33 can be connected to the outer shell, and at least a portion of the outer shell serves as the negative terminal 32 .

[0061] In an optional embodiment, the battery cell 3 is designed with reference to the size of a standard battery. For example, the battery cell 3 is designed with reference to the size of a lithium-ion 18650 battery, or with reference to the size of a lithium-ion 21700 battery, or with other standard size, so as to have the same usage as batteries of these standard size. Examples are not given one by one. In other optional embodiments, according to specific needs, the size of the battery cell 3 can also be specifically designed according to needs.

[0062] See also Figure 1 and Figure 2 As shown, in one embodiment, a first through hole 24 and a second through hole 25 are provided on the housing 2 , the first discharge interface 4 is provided corresponding to the first through hole 24 , and the second discharge interface 5 is provided corresponding to the second through hole 25 .

[0063] The purpose of such arrangement is that at least a portion of the first discharge interface 4 and the second discharge interface 5 can be arranged in the cavity inside the housing 2, rather than being completely exposed on the outer surface of the housing 2. In this way, the outer surface of the housing 2 can be ensured to be as regular, flat or smooth as possible, so as to avoid affecting the normal use of the charging device 100.

[0064] In one embodiment, the first discharge interface 4 and / or the second discharge interface 5 is flush with or recessed inwardly relative to the outer surface of the housing 2 .

[0065] In an optional embodiment, a portion of the first discharge interface 4 is disposed in the cavity of the housing 2, and another portion is disposed in the first through hole 24. In this case, the first discharge interface 4 can be adapted to be directly abutted and electrically connected to an electrical connection port of an electronic device, and of course, it can also be adapted to be electrically connected to the electronic device through a transfer structure.

[0066] In an optional embodiment, the second discharge interface 5 can be completely disposed in the cavity of the housing 2. In this way, the second discharge interface 5 is relatively recessed relative to the outer surface of the housing 2. On this basis, the second discharge interface 5 can be adapted to the case where it is necessary to connect to the electronic device through an external adapter structure (such as a power cord).

[0067] In one embodiment, the first discharge interface 4 is a blade-type connector, suitable for plugging with a blade-type adapter terminal on an electronic device.

[0068] In one embodiment, the second discharge interface 5 is a USB Type A interface, a USB Type C interface or a Micro USB interface.

[0069] See also Figure 2 and Figure 3 As shown, in one embodiment, in order to facilitate the processing and manufacturing of the housing 2 and the assembly of the battery cell 3 in the housing 2, the housing 2 is not an integrated structure, but includes two oppositely arranged half shells 21, a first cover 22 connected to one end of the two half shells 21, and a second cover 23 connected to the other end of the two half shells 21. The two half shells 21, the first cover 22 and the second cover 23 are spliced ​​with each other to define an internal cavity. At least one of the two half shells 21, the first cover 22 and the second cover 23 is detachable relative to the other.

[0070] In order to separate the positions of the first discharge interface 4 and the second discharge interface 5 and prevent them from being too close, in an optional embodiment, the first through hole 24 is arranged between one half shell 21 and the first cover 22, and the second through hole 25 is arranged between the two half shells 21. This is beneficial to the spatial arrangement of the components in the charging device 100 and the arrangement of the wiring.

[0071] Of course, it is not limited to this. In other optional embodiments, the first through hole 24 and the second through hole 25 can also be set at other positions. Preferably, the positions of the first through hole 24 and the second through hole 25 do not affect the installation of the first discharge interface 4 and the second discharge interface 5. In addition, preferably, the first through hole 24 and the second through hole 25 are located on the same side of the battery cell 33, which can facilitate the connection between the first discharge interface 4, the second discharge interface 5 and the positive electrode tab and the negative electrode tab.

[0072] In other optional embodiments, one of the first cover 22 and the second cover 23 may be integrally formed with the half shell 21 .

[0073] Then, please refer to Figure 2 and Figure 3As shown, the charging device 100 further includes a circuit board 7 disposed in the housing 2. The circuit board 7 is provided with traces, including a positive trace and a negative trace. The positive connection terminals 31 of the battery cells 3 are connected to the positive pins 81 of the first discharge interface 4 and the positive pins 81 of the second discharge interface 5 through the positive trace, and the negative connection terminals 32 of the battery cells 3 are connected to the negative pins 82 of the first discharge interface 4 and the negative pins 82 of the second discharge interface 5 through the traces. The purpose of this setting is to facilitate the layout and fixation of the traces in the cavity.

[0074] In an alternative embodiment, please refer to Figure 2 and Figure 3 As shown, the first discharge interface 4 and the second discharge interface 5 are respectively located on opposite sides of the circuit board 7. The purpose of this setting is that when the circuit board 7 is in operation, the heat generated by the charge and discharge circuit formed by the traces will be relatively obvious. At this time, a certain distance needs to be provided between the circuit board 7 and the battery cells 3 to avoid the heat affecting the battery cores 33. On this basis, setting the first discharge interface 4 or the second discharge interface 5 between the circuit board 7 and the battery cells 3 is beneficial to the compact layout of the structure in the housing 2 and the overall small volume.

[0075] Specifically, in Figure 1 and Figure 2 the first through hole 24 is formed by the mating of two first recesses 240. One first recess 240 is formed on the first cover 22, and the other recess is formed on one half-shell 21. The first discharge interface 4 is disposed close to the first cover 22. Therefore, the first discharge interface 4 is located on the side of the circuit board 7 facing the first cover 22 and can be partially exposed through the first through hole 24; the second through hole 25 is formed by the mating of two second recesses 250, and the two second recesses 250 are respectively formed on the adjacent sides of the two half-shells 21. The second discharge interface 5 is located between the circuit board 7 and the battery cells 3.

[0076] In more embodiments, when the positions of the first through hole 24 and the second through hole 25 are different, the circuit board 7 can have other layout methods. For example, it can be arranged obliquely by rotating a certain angle, and the first through hole 24 and the second through hole 25 are respectively located on its opposite sides, which is also possible. As long as the space layout requirements and heat dissipation requirements can be met, no further examples will be given here.

[0077] In addition, please refer to Figures 1 to 3 As shown, in one embodiment, the charging device 100 further includes a pull cord 6, and the pull cord 6 is disposed on the housing 2. Specifically, in an alternative embodiment, the pull cord 6 is disposed on the second cover 23, that is, at the end far from the first discharge interface 4 and the second discharge interface 5. When the charging device 100 is assembled in an electronic device, the pull cord 6 can be exposed without affecting the assembly of the charging device 100 and the electronic device.

[0078] In an alternative embodiment, the drawstring 6 is detachably provided on the second cover 23. The purpose of this arrangement is that, depending on the different electronic devices, if the charging device 100 needs to be assembled inside the electronic device, the drawstring 6 can be detached from the second cover 23. This can further improve the flexibility of use of the charging device 100 and its compatibility with the electronic device. When the charging device 100 is detached from the first electronic device and used as a mobile power source, the drawstring 6 can be installed on the housing 2 for easy carrying by the user.

[0079] Please refer to Figure 2 and Figure 3 As shown, the battery cells 3 are arranged in the same direction within the housing 2, which is conducive to the parallel connection between the battery cells 3, as Figure 5 shown; alternatively, the battery cells 3 are arranged in opposite directions within the housing 2, which is conducive to the series connection between the battery cells 3, as Figure 6 shown; or, the battery cells 3 are combined in series and parallel. The battery cells 3 can be arranged within the housing 2 in any of the aforementioned ways, specifically in combination with actual voltage, current, capacity requirements, etc.

[0080] In one embodiment, the housing 2 is an openable and closable housing 2. For example, at least one of the half-shell 21, the first cover 22, and the second cover 23 can be opened to take out the battery cells 3 therein.

[0081] In an alternative embodiment, as Figure 4 shown, at least one battery cell 3 includes a battery core 33, a positive terminal 31, a negative terminal 32, and a third discharge interface 34. The third discharge interface 34 is connected to the battery core 33 in a manner parallel to the positive terminal 31 and the negative terminal 32. In this way, a single battery cell 3 can also have multiple power supply methods, that is, it can discharge alone or in combination through its positive terminal 31 and negative terminal 32, or it can discharge alone through its third discharge interface 34. The third discharge interface 34 is optionally one of a USB Type-A interface, a USB Type-C interface, or a Micro USB interface.

[0082] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A charging device, characterized in that: It includes a shell, one or more battery cells arranged in the shell, and a first discharge interface and a second discharge interface arranged on the shell; The first discharge interface and the second discharge interface are connected in parallel to the positive terminal of each battery cell, and are connected in parallel to the negative terminal of each battery cell; The first discharge interface and the second discharge interface are of different types.

2. The charging device according to claim 1, characterized in that: The shell is provided with a first through hole and a second through hole, the first discharge interface is at least partially provided in the first through hole, and the second discharge interface is at least partially provided in the second through hole.

3. The charging device according to claim 2, characterized in that: The shell includes two oppositely arranged half shells, a first cover connected to one end of the two half shells, and a second cover connected to the other end of the two half shells; the first through hole is arranged between one of the half shells and the first cover; the second through hole is arranged between the two half shells.

4. The charging device according to claim 3, characterized in that: The charging device also includes a pull cord disposed on the outer surface of the second cover.

5. The charging device according to claim 1, characterized in that: The charging device also includes a circuit board arranged in the shell, and a wiring is arranged on the circuit board. The positive terminal and the negative terminal of each battery cell are connected to one end of the wiring, and the first discharge interface and the second discharge interface are connected in parallel to the other end of the wiring.

6. The charging device according to claim 5, characterized in that: The first discharge interface and the second discharge interface are respectively located on two opposite sides of the circuit board.

7. The charging device according to any one of claims 1 to 6, characterized in that: The battery cell is a cylindrical battery cell or a square battery cell; the battery cell is a soft-pack battery cell, or the shell is a hard metal shell; the battery cell is one or more of a nickel-hydrogen battery cell, a nickel-cadmium battery, a lead-acid battery cell, a lithium-ion battery cell, and a polymer lithium-ion battery cell.

8. The charging device according to any one of claims 1 to 6, characterized in that: The first discharge interface is a blade-type connector; the second discharge interface is a USB A-type interface, a USB C-type interface or a Micro USB interface.

9. The charging device according to any one of claims 1 to 6, characterized in that: The first discharge interface and / or the second discharge interface are flush with or recessed inwardly relative to the outer surface of the shell.

10. The charging device according to any one of claims 1 to 6, characterized in that: A portion of the shell is openable and closable; wherein at least one of the battery cells further comprises a battery core and a third discharge interface, and the third discharge interface is connected to the battery core in parallel with the positive terminal and the negative terminal of the battery cell.

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