Self-switching household energy storage power supply device

Abstract

The utility model relates to the technical field of electrical equipment, and particularly discloses a self-switching type household energy storage power supply device which is connected with a household load and comprises a female shell, and the size of the female shell is not larger than 89dm. A BMS protection plate, a first sub-shell and a second sub-shell are fixedly installed in the mother shell, the first sub-shell is located above the BMS protection plate, the second sub-shell is located below the BMS protection plate, an inverter is installed in the first sub-shell, and a lithium battery is installed in the second sub-shell; the lithium battery is electrically connected with the BMS protection plate, the BMS protection plate is electrically connected with the inverter, and the inverter is electrically connected with the household load; wherein the capacity of the lithium battery ranges from 950000 mAH to 100000 mAH. According to the utility model, the purpose of high energy storage can be achieved under the condition of small volume.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical equipment, in particular to a self-switching household energy storage power supply device. Background Art

[0002] A household energy storage power supply device is a device used to store electricity and release it when needed, usually used in household or small commercial environments. Such devices can help households manage and balance electricity loads. It can store the excess electric energy from solar energy or the power grid.

[0003] In the prior art, due to the good stability of lead-acid batteries, accidents are not likely to occur. When using an energy storage power supply device indoors, lead-acid batteries are more commonly used for power supply. However, when using lead-acid batteries, their energy storage is less. To meet the requirement of rich energy storage, the volume of lead-acid batteries will be increased, thus increasing the volume of the indoor energy storage power supply device. In this way, the occupied space is relatively large, which is not conducive to being placed in a family or a small store. For example, for a commonly used indoor energy storage power supply device, the Baoxing brand UPS power supply model is FEPS-BX5KVA, with an output power of 2000W, a battery capacity of 100000mAH, a working duration of 90 minutes, and the length, width and height are 7.3 * 4.8 * 12 dm, and the volume is equivalent to 420.48 dm³. Summary of the Utility Model

[0004] In order to achieve high energy storage while reducing the volume of the energy storage power supply device, a self-switching household energy storage power supply device is provided.

[0005] The following technical scheme is adopted: A self-switching household energy storage power supply device is connected to a household load and includes a mother housing, the volume of the mother housing is not greater than 89 dm³; a BMS protection board, a first sub-housing and a second sub-housing are fixedly installed in the mother housing. The first sub-housing is located above the BMS protection board, and the second sub-housing is located below the BMS protection board. An inverter is installed in the first sub-housing, and a lithium battery is installed in the second sub-housing; the lithium battery is electrically connected to the BMS protection board, the BMS protection board is electrically connected to the inverter, and the inverter is electrically connected to the household load; wherein, the capacity of the lithium battery is 950000 mAH - 100000 mAH.

[0006] Advantageous Effects: Compared with the prior art, firstly, by reducing the volume of the mother housing to within 89 dm³, which is equivalent to the size of a suitcase or about 1 / 5 of the Baoxing brand UPS power supply, the device can not only be placed in a corner of the room, but also be convenient for users to carry, and can meet the needs of household use.

[0007] Secondly, by connecting with the lithium battery using the BMS protection board, it can protect the lithium battery and maintain its stable operation, making it safer for users during use.

[0008] Subsequently, by setting the first sub-shell and the second sub-shell, an inverter is installed in the first sub-shell and a lithium battery is installed in the second sub-shell. The use of the sub-shells not only prevents the inverter or the lithium battery from being interfered by the mutual influence of the circuit and current, but also plays a protective role. Especially when there is a collision, it will not damage the lithium battery or the inverter, further improving the safety of the household energy storage power supply device. At the same time, since there are many wires in the inverter, through the setting of the first sub-shell, the internal wires are concentrated inside, and there will be no exposed internal wires to interfere with the BMS protection board or the lithium battery.

[0009] Secondly, when the volume of the mother shell is reduced to less than 89 dm³, the capacity of the lithium battery is 950000 mAH - 100000 mAH. When the capacity of the lithium battery is 100000 mAH, it can meet the power supply duration of a 2KW full-load air conditioner for 2.5 hours for users, thus achieving the effect of high energy storage.

[0010] Finally, compared with the prior art, this solution can achieve a small volume and the purpose of high energy storage.

[0011] Preferably, a first wiring hole is opened on the second sub-shell, and the electrical connection between the BMS protection board and the lithium battery passes through the first wiring hole; the distance between the BMS protection board and the first wiring hole is 25 mm; the distance between the BMS protection board and the first sub-shell is 108 mm.

[0012] Beneficial effects: Even when the first sub-shell and the second sub-shell are used to isolate the inverter and the lithium battery respectively, the BMS protection board will still be interfered by the inverter and the lithium battery, making it difficult for the BMS protection board to protect the stability of the lithium battery. Therefore, when the BMS protection board is set at a distance of 25 mm from the first wiring hole and 108 mm from the first sub-shell, the BMS protection board will not be interfered by the inverter and the lithium battery, and at the same time, it can reach a just right distance without expanding the distances between the BMS protection board and the first wiring hole and the first sub-shell respectively, so as not to cause an increase in the volume of the mother shell.

[0013] Preferably, it further includes a disassembly bolt, and a dust-proof cover plate is connected to the mother shell using the disassembly bolt, and the dust-proof cover plate is located on the side of the mother shell.

[0014] Beneficial effect: A dust cover is provided, which can be opened when installing the internal components of the mother shell. At the same time, the dust cover can prevent children from directly contacting the inside of the mother shell and effectively prevent small animals from entering the machine, further improving the safety of household energy storage power supply devices.

[0015] Preferably, one end of the dustproof cover is provided with a wire outlet hole, and the other end of the dustproof cover is provided with a hollow surface; the electrical connection between the inverter and the household load passes through the wire outlet hole.

[0016] Beneficial effect: By setting the outlet hole, it can make connecting the household load easier and more convenient.

[0017] Preferably, a display screen is provided on the mother shell, and the display screen is used to display the real-time power level of the household energy storage power supply device.

[0018] Beneficial effect: The remaining power of the household energy storage power supply device can be understood in real time through the display screen.

[0019] Preferably, an air switch is also installed on the first housing, and the air switch is electrically connected to the inverter.

[0020] Beneficial effect: The air switch can prevent the household energy storage power supply device from short circuit and causing greater losses.

[0021] Preferably, a wire collecting through hole is opened on the first sub-shell, and the electrical connection between the air switch and the inverter passes through the wire collecting through hole, and the electrical connection between the BMS protection board and the inverter passes through the wire collecting through hole.

[0022] Beneficial effect: The wires connected from the inverter and needing to pass through the first sub-housing are gathered together through the wire collection through-holes, so that the wiring arrangement is more neat.

[0023] Preferably, the household energy storage power supply device switches power supply within 10ms after a power outage occurs in the household load.

[0024] Beneficial effect: The household energy storage power supply device can switch power supply in a short time.

[0025] Preferably, universal wheels are installed at the bottom of the female housing.

[0026] Beneficial effect: The household energy storage power supply device can be conveniently moved by setting the universal wheels. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a front schematic diagram of a female housing of a self-switching household energy storage power supply device according to an embodiment;

[0028] Figure 2 A schematic side view of a female housing of a self-switching household energy storage power supply device according to an embodiment;

[0029] Figure 3 Schematic diagram of the internal structure of the mother housing of a self-switching household energy storage power supply device according to an embodiment;

[0030] Figure 4 Side view of the first sub-housing of a self-switching household energy storage power supply device according to an embodiment;

[0031] Figure 5 Another side view of the first sub-housing of a self-switching household energy storage power supply device according to an embodiment;

[0032] Figure 6 Schematic diagram of the internal structure of the first sub-housing of a self-switching household energy storage power supply device according to an embodiment;

[0033] Figure 7 Partial enlarged schematic diagram of the dust-proof cover of a self-switching household energy storage power supply device according to an embodiment;

[0034] Figure 8 Schematic diagram of the structure of the BMS protection board of a self-switching household energy storage power supply device according to an embodiment. Detailed implementation manners

[0035] The following is a further detailed description through specific implementation manners.

[0036] The reference numerals in the accompanying drawings of the specification include:

[0037] Mother housing 1, universal wheel 2, display screen 3, dust-proof cover 4, pull ring 5, nameplate 6, first sub-housing 11, second sub-housing 12, BMS protection board 13, fan 111, inverter 112, air switch 113, wire outlet hole 41, hollowed-out surface 42, disassembly bolt 43.

[0038] Embodiment

[0039] This embodiment provides a self-switching household energy storage power supply device, which is basically as Figure 1-7As shown in the figure. The household energy storage power supply device is connected to a household load, including a mother housing 1. Inside the mother housing 1, a first sub-housing 11 and a second sub-housing 12 are fixedly installed by bolts. Among them, an inverter 112 is fixedly installed inside the first sub-housing 11, and a lithium battery is fixedly installed inside the second sub-housing 12. The lithium battery is electrically connected to the BMS protection board 13, the BMS protection board 13 is electrically connected to the inverter 112, and the inverter 112 is electrically connected to the household load. Electric connection in a broad sense covers all electrical connection parts in electrical equipment. For specific connections, an ordinary technician in this field can specifically use wires or conductors for connection. For the sake of clear and concise description, the electric connection can be set to use wires for connection. The household load is an existing household electrical device. The capacitance of the lithium battery is 950000mAH - 100000mAH.

[0040] As Figure 1 shown, a self-switching household energy storage power supply device includes a mother housing 1, and the volume of the mother housing 1 is less than 89 cubic decimeters. The mother housing 1 is of a rectangular structure. A display screen 3 is fixedly installed on the mother housing 1, and the display screen 3 is located in the middle of the front of the mother housing 1. The display screen 3 is used to display the real-time power of the household energy storage power supply device. Universal wheels 2 are installed at the bottom of the mother housing 1.

[0041] As Figure 2 shown, a rectangular through-hole area is cut out on the side surface of the mother housing 1, and the inside of the mother housing 1 can be visually inspected through this rectangular through-hole area. A dust-proof cover plate 4 is installed on the mother housing 1 by removing bolts 43, and the dust-proof cover plate 4 covers this rectangular through-hole area. An open-work surface 42 is provided at the upper end of the dust-proof cover plate 4, and through this open-work surface 42, the inside of the mother housing 1 can be visually inspected. A wire outlet hole 41 is provided at the lower end of the dust-proof cover plate 4. The inverter 112 and the household load are connected by a wire, and this wire passes through the wire outlet hole 41. Below the dust-proof cover plate 4, a pull ring 5 is also fixedly installed on the mother housing 1 by bolts. This handle can facilitate users to lift the household energy storage power supply device. A nameplate 6 is pasted below the pull ring 5, and the parameters and usage methods of the household energy storage power supply device are marked on the nameplate 6.

[0042] As Figure 3 shown, the BMS protection board 13, the first sub-housing 11 and the second sub-housing 12 are fixedly installed on the inner wall surface of the mother housing 1 by bolts; the second sub-housing 12 is located below the BMS protection board 13, and the BMS protection board 13 is located below the first sub-housing 11. The distance between the BMS protection board 13 and the first wiring hole is 25mm; the distance between the BMS protection board 13 and the first sub-housing 11 is 108mm.

[0043] As Figure 4 and Figure 6As shown, an inverter 112 is installed inside the first sub-housing 11, and a fan 111 is provided on the side of the first sub-housing 11. Since the inverter 112 generates a lot of heat when working, the fan 111 is used to dissipate heat in order to make the inverter 112 work stably. Figure 7 As shown, the fan 111 located above the first sub-shell 11 is directly opposite to the hollow surface 42 on the dust cover 4. This allows the fan 111 to communicate with the outside world and dissipate heat better. Figure 5 As shown, the air switch 113 is fixedly mounted on a side surface of the first sub-housing 11 by means of bolts.

[0044] like Figure 8 As shown, the BMS protection plate 13 is fixedly mounted on the mother housing 1. Figure 3 The second sub-shell 12 is provided with a first wiring hole at the upper end thereof. The BMS protection board 13 is connected to the lithium battery through an electric wire, and the electric wire passes through the first wiring hole. A wire collecting hole is provided on the first sub-shell 11, and the electric wire used for the electrical connection between the air switch 113 and the inverter 112 passes through the wire collecting hole, the electric wire used for the electrical connection between the BMS protection board 13 and the inverter 112 passes through the wire collecting hole, and the electric wire used for the electrical connection between the inverter 112 and the household load passes through the wire collecting hole. The household energy storage power supply device switches the power supply within 10ms after a power outage occurs to the household load.

[0045] In the description of the present utility model, it should be noted that the terms "upper", "lower", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.

[0046] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] It should be understood that the term "and / or" used herein is merely a description of the same fields of associated objects, indicating that there can be three relationships. For example, A and / or B can represent three cases: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, the character " / " in this text generally indicates an "or" relationship between the associated objects before and after.

[0048] It should be noted that for other parts not mentioned, including specific devices and implementation methods, please refer to the foregoing method embodiment section and will not be elaborated herein.

[0049] Although the subject matter has been described in language specific to structural features and / or method logical acts, it should be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or acts described above. On the contrary, the specific features and acts described above are merely example forms for implementing the claims.

[0050] The above are only embodiments of the present utility model. Common knowledge such as specific structures and characteristics that are already known in the solutions is not described in detail herein. Those of ordinary skill in the art know all the common general technical knowledge in the technical field to which the utility model pertains before the filing date or the priority date, can know all the prior art in this field, and have the ability to apply conventional experimental means before this date. Those of ordinary skill in the art can, under the inspiration given in this application, complete and implement this solution in combination with their own abilities. Some typical well-known structures or well-known methods should not be an obstacle for those of ordinary skill in the art to implement this application. It should be pointed out that for those skilled in the art, without departing from the structure of the present utility model, several modifications and improvements can still be made, and these should also be regarded as the protection scope of the present utility model, and these will not affect the implementation effect of the present utility model and the practicality of the patent. The protection scope required by this application should be based on the content of its claims, and the specific implementation manners described in the specification can be used to interpret the content of the claims.

Claims

1. A self-switching household energy storage power supply device, connected to a household load, comprising a female housing, characterized in that: The volume of the mother shell is not more than 89dm³; a BMS protection board, a first sub-shell and a second sub-shell are fixedly installed in the mother shell, the first sub-shell is located above the BMS protection board, the second sub-shell is located below the BMS protection board, an inverter is installed in the first sub-shell, and a lithium battery is installed in the second sub-shell; the lithium battery is electrically connected to the BMS protection board, the BMS protection board is electrically connected to the inverter, and the inverter is electrically connected to the household load; wherein the capacity of the lithium battery is 950000mAH-100000mAH.

2. A self-switching household energy storage power supply device according to claim 1, characterized in that: A first wiring hole is opened on the second sub-shell, and the electrical connection between the BMS protection board and the lithium battery passes through the first wiring hole; the distance between the BMS protection board and the first wiring hole is 25mm; the distance between the BMS protection board and the first sub-shell is 108mm.

3. A self-switching household energy storage power supply device according to claim 1, characterized in that: It also includes disassembly bolts, and the mother shell is connected with a dust cover plate by the disassembly bolts, and the dust cover plate is located on the side of the mother shell.

4. A self-switching household energy storage power supply device according to claim 3, characterized in that: One end of the dustproof cover is provided with a wire outlet hole, and the other end of the dustproof cover is provided with a hollow surface; the electrical connection between the inverter and the household load passes through the wire outlet hole.

5. A self-switching household energy storage power supply device according to claim 1, characterized in that: A display screen is provided on the mother shell, and the display screen is used to display the real-time power of the household energy storage power supply device.

6. A self-switching household energy storage power supply device according to claim 1, characterized in that: An air switch is also installed on the first shell, and the air switch is electrically connected to the inverter.

7. A self-switching household energy storage power supply device according to claim 6, characterized in that: A wire collection through hole is provided on the first sub-shell, and the electrical connection between the air switch and the inverter passes through the wire collection through hole, and the electrical connection between the BMS protection board and the inverter passes through the wire collection through hole.

8. A self-switching household energy storage power supply device according to claim 1, characterized in that: The household energy storage power supply device switches power supply within 10ms after a power outage occurs in the household load.

9. A self-switching household energy storage power supply device according to claim 1, characterized in that: Universal wheels are installed at the bottom of the female housing.

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