CN216773389U

CN216773389U - Energy storage device

Info

Publication number: CN216773389U
Application number: CN202220157907.9U
Authority: CN
Inventors: 钟小军
Original assignee: Guangzhou Allpowers Energy Technology Co ltd
Current assignee: Guangzhou Allpowers Energy Technology Co ltd
Priority date: 2022-01-20
Filing date: 2022-01-20
Publication date: 2022-06-17
Anticipated expiration: 2032-01-20

Abstract

The utility model relates to the technical field of energy storage devices, in particular to an energy storage device which comprises a power supply assembly, a power supply management module and a conversion assembly, wherein the power supply assembly, the power supply management module and the conversion assembly are sequentially arranged from bottom to top, the conversion assembly is provided with a first positioning hole for fixing the upper end of a first copper bar, the power supply management module is provided with a second positioning hole and a third positioning hole for fixing the lower end of the first copper bar, the top of the power supply assembly is provided with a convex part, the convex part is provided with a fourth positioning hole, a first bolt is in threaded connection with the fourth positioning hole through the second positioning hole, and the power supply management module is electrically connected with the power supply assembly. Has the advantages that: the power management module is fixed on the convex part of the power supply assembly through the first copper bar support conversion assembly and the first bolt so as to form a reasonable assembly layout. Conversion components can carry out the electricity through first copper bar and be connected with power management module, reduces the quantity of pencil. The first positioning hole, the second positioning hole, the third positioning hole and the fourth positioning hole are arranged, so that the modularized parts can be conveniently assembled.

Description

Energy storage device

Technical Field

The utility model relates to the technical field of energy storage devices, in particular to an energy storage device.

Background

In the related art, the energy storage device mainly refers to a device for storing electric energy, which can store hundreds of watt-hours of electric energy after being charged, and release the electric energy for the user to use when the user needs the electric energy.

Due to the fact that the number of circuits inside the energy storage device is large, the assembly layout inside the energy storage device is disordered, and the wiring harness distribution is staggered and complicated. An unreasonable assembly layout and a disordered wiring harness easily cause a short circuit of the energy storage device, resulting in a fire.

SUMMERY OF THE UTILITY MODEL

One objective of the present invention is to provide an energy storage device to reduce the accumulation of heat in the energy storage device and to improve the heat dissipation efficiency of the energy storage device.

In order to achieve the purpose, the utility model provides an energy storage device which comprises a power supply assembly, a power supply management module, a conversion assembly, a first copper bar and a first bolt, wherein the power supply assembly, the power supply management module and the conversion assembly are sequentially arranged from bottom to top, the conversion assembly is provided with a first positioning hole for fixing the upper end of the first copper bar, the power supply management module is provided with a second positioning hole and a third positioning hole for fixing the lower end of the first copper bar, the top of the power supply assembly is provided with a convex part, the convex part is provided with a fourth positioning hole, the first bolt is in threaded connection with the fourth positioning hole through the second positioning hole, and the power supply management module is electrically connected with the power supply assembly.

In the above technical solution, a first positioning portion protruding from the lower end surface is disposed on the lower end surface of the first copper bar, and the first positioning portion is welded in the third positioning hole.

In the above technical scheme, the third positioning hole is formed by connecting a plurality of side walls end to end in sequence, and a gap is arranged at the connecting position of two adjacent side walls.

In the above technical scheme, the upper end face of the first copper bar is provided with a second positioning portion protruding out of the upper end face, the second positioning portion extends into the first positioning hole, the energy storage device includes a second bolt, the second bolt is in threaded connection with the second positioning portion, and the head of the second bolt is connected with the upper end face of the first positioning hole.

In the above technical solution, the power supply module includes an insulating casing, an upper conductive plate, a lower conductive plate, and a plurality of batteries, the plurality of batteries are disposed in the insulating casing, a lower end of the upper conductive plate is fixed to the insulating casing and is abutted to upper ends of the plurality of batteries, an upper end of the upper conductive plate is welded to the power management module, a lower end of the lower conductive plate is fixed to the insulating casing and is abutted to lower ends of the plurality of batteries, and an upper end of the lower conductive plate is welded to the power management module.

In the above technical scheme, the insulating housing includes an insulating upper shell, an insulating lower shell and an insulating lining, the plurality of batteries are clamped between the insulating upper shell and the insulating lining, the lower end of the lower conducting strip is clamped between the insulating lining and the insulating lower shell, the insulating lining is provided with a first through hole, the lower end of the battery is fixed on the upper end face of the first through hole, the lower end of the lower conducting strip extends into the first through hole to abut against the lower end of the battery, the insulating upper shell is provided with a second through hole, and the upper end of the battery is abutted against the lower end of the upper conducting strip through the second through hole.

In the above technical scheme, a lower insulating layer is arranged between the lower end of the lower conducting strip and the insulating lower shell, and an upper insulating layer is arranged between the upper end of the upper conducting strip and the insulating upper shell.

In the above technical solution, the power management module includes a circuit board, an upper end of the upper conductive plate is welded to an upper surface of the circuit board, and an upper end of the lower conductive plate is welded to the upper surface of the circuit board.

In the above technical scheme, the conversion assembly includes a main control module, an inversion module and a second copper bar, the main control module is provided with the first positioning hole, and the second copper bar is electrically connected with the main control module and the inversion module.

In the above technical scheme, at least a part of the first copper bar is sleeved with an insulating sleeve.

Compared with the related art, the energy storage device provided by the embodiment of the utility model has the beneficial effects that: support conversion components and first bolt through first copper bar and be fixed in power supply module's convex part on to form reasonable assembly layout, also be favorable to the modular part to assemble. The conversion assembly can be electrically connected with the power management module through the first copper bar, so that the number of wire harnesses is reduced, and the assembly layout of the utility model is optimized. The arrangement of the first positioning hole, the second positioning hole, the third positioning hole and the fourth positioning hole facilitates assembly of modularized components, and improvement of assembly accuracy is facilitated. The power management module is fixed above the power supply assembly through the first bolt and the fourth positioning hole in a threaded connection mode, and the situation that short circuit occurs between the power management module and the power supply assembly is avoided.

Drawings

FIG. 1 is a schematic structural diagram of an energy storage device in accordance with one embodiment of the present invention;

FIG. 2 is an exploded view of an energy storage device in accordance with one embodiment of the present invention;

FIG. 3 is a schematic assembled cross-sectional view of a conversion assembly, a power management module and a power supply assembly of one embodiment of the present invention;

fig. 4 is a schematic structural diagram of a first copper bar according to an embodiment of the present invention;

FIG. 5 is a detailed schematic diagram of a portion of the structure of a power management module of one embodiment of the utility model;

FIG. 6 is an exploded view of the power supply assembly of one embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a conversion assembly in accordance with one embodiment of the present invention;

in the figure, 1, power supply components; 101. a convex portion; 11. an insulating housing; 111. an insulating upper case; 112. an insulating lower case; 113. an insulating liner; 12. a battery; 13. an upper conducting strip; 14. a lower conductive sheet;

2. a power management module; 21. a second positioning hole; 22. a third positioning hole;

3. a conversion component; 31. an inversion module; 32. a main control module; 33. a second copper bar;

4. a first copper bar; 41. a first positioning portion; 42. a second positioning portion;

5. a first bolt;

6. a second bolt.

Detailed Description

The following detailed description of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the utility model, but are not intended to limit the scope of the utility model.

In the description of the present invention, directional descriptions such as directions or positional relationships indicated above, below, front, rear, left, right, etc. are based on the directions or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but 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 thus should not be construed as limiting the present invention.

If there is a description of first and second for the purpose of distinguishing technical features only, this is not to be understood as indicating or implying a relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of technical features indicated.

As shown in fig. 1 and fig. 2, an energy storage device according to a preferred embodiment of the present invention includes a power supply assembly 1, a power management module 2, a conversion assembly 3, a first copper bar 4, and a first bolt 5, the power supply assembly 1, the power management module 2, and the conversion assembly 3 are sequentially arranged from bottom to top, the conversion assembly 3 is provided with a first positioning hole for fixing an upper end of the first copper bar 4, the power management module 2 is provided with a second positioning hole 21 and a third positioning hole 22 for fixing a lower end of the first copper bar 4, a top of the power supply assembly 1 is provided with a convex portion 101, the convex portion 101 is provided with a fourth positioning hole, the first bolt 5 is in threaded connection with the fourth positioning hole through the second positioning hole 21, and the power management module 2 is electrically connected with the power supply assembly 1.

Support conversion component 3 and first bolt 5 through first copper bar 4 and be fixed in power supply module 1's convex part 101 on with power management module 2 to form reasonable assembly layout, also be favorable to the assembly of modular part. The conversion component 3 can be electrically connected with the power management module 2 through the first copper bar 4, so that the number of wiring harnesses is reduced, and the assembly layout of the utility model is favorably optimized. The arrangement of the first positioning hole, the second positioning hole 21, the third positioning hole 22 and the fourth positioning hole facilitates the assembly of modularized components, and is beneficial to improving the accuracy of assembly. The power management module 2 is fixed above the power supply assembly 1 through the first bolt 5 and the fourth positioning hole in a threaded connection mode, and therefore the situation that short circuit occurs between the power management module 2 and the power supply assembly 1 is avoided.

It will be appreciated that in this embodiment, the power supply module 1 stores power primarily through the power management module 2, and releases the stored power to the desired device by virtue of the conversion module 3.

As shown in fig. 3 and 4, a first positioning portion 41 protruding from the lower end surface is disposed on the lower end surface of the first copper bar 4, and the first positioning portion 41 is welded in the third positioning hole 22. The first positioning hole 41 and the third positioning hole 22 are connected by welding, and the first copper bar 4 can be fixed on the power management module 2, which is favorable for realizing the connection between the upper end of the first copper bar 4 and the conversion component 3.

As shown in fig. 5, preferably, the third positioning hole 22 is formed by connecting a plurality of side walls end to end in sequence, and a gap is formed at the connecting position of two adjacent side walls. The gap is provided to facilitate the flux to enter the gap formed between the sidewall of the third positioning hole 22 and the first positioning portion 41, so as to achieve the fixation.

As shown in fig. 3 and 4, further, the upper end surface of the first copper bar 4 is provided with a second positioning portion 42 protruding from the upper end surface, the second positioning portion 42 extends into the first positioning hole, the energy storage device includes a second bolt 6, the second bolt 6 is in threaded connection with the second positioning portion 42, and the head of the second bolt 6 is connected with the upper end surface of the first positioning hole.

It can be understood that, since the welding improves the stability of the first copper bar 4, the conversion assembly 3 can be directly placed on the upper end of the first copper bar 4 for assembly. The head of the second bolt 6 is connected with the upper end face of the first positioning hole, so that the first copper bar 4 in threaded connection with the second bolt can fix the lower part of the conversion component 3, and the conversion component 3 is supported. The screwing length of the second bolt 6 and the second positioning part 42 is adjusted to generate pressure between the upper end surface of the first copper bar 4 and the conversion component 3, so that the stability of connection between the first copper bar 4 and the conversion component 3 is improved, and the electric connection between the conversion component 3 and the power management module 2 is realized.

As shown in fig. 6, further, the power module 1 includes an insulating housing 11, an upper conductive plate 13, a lower conductive plate 14, and a plurality of batteries 12, the batteries 12 are disposed in the insulating housing 11, a lower end of the upper conductive plate 13 is fixed to the insulating housing 11 and abuts against upper ends of the batteries 12, an upper end of the upper conductive plate 13 is welded to the power management module 2, a lower end of the lower conductive plate 14 is fixed to the insulating housing 11 and abuts against lower ends of the batteries 12, and an upper end of the lower conductive plate 14 is welded to the power management module 2.

It can be understood that the upper conductive sheets 13 abut against the upper ends of the batteries 12, and the lower conductive sheets 14 abut against the lower ends of the batteries 12, so that the power module 3 and the power management module 2 form a loop, and the power management module 2 can transmit the received electric energy into the batteries 12 for storage. The upper conducting sheet 13 and the lower conducting sheet 14 are fixed on the insulating shell 11, so that the condition of electric leakage can be avoided. The upper end of the upper conducting strip 13 and the upper end of the lower conducting strip 14 are connected with the power management module 2 in a welding mode, so that a loop is formed between the battery 12 and the power management module 2, and electric energy can enter the battery 12 through the power management module 2 to be stored.

As shown in fig. 6, in one embodiment, the insulating case 11 includes an insulating upper case 111, an insulating lower case 112, and an insulating liner 113, the plurality of batteries 12 are sandwiched between the insulating upper case 111 and the insulating liner 113, the lower end of the lower conductive sheet 14 is sandwiched between the insulating liner 113 and the insulating lower case 112, the insulating liner 113 is provided with a first through hole, the lower end of the battery 12 is fixed to the upper end surface of the first through hole, the lower end of the lower conductive sheet 14 extends into the first through hole to abut against the lower end of the battery 12, the insulating upper case 111 is provided with a second through hole, and the upper end of the battery 12 abuts against the lower end of the upper conductive sheet 13 through the second through hole.

It can be understood that the lower end of the battery 12 is fixed to the upper end surface of the first through hole, and the insulating upper case 111 can generate pressure on the battery 12, so that the battery 12 is stably clamped between the insulating upper case 111 and the insulating lower case 112, and when the lower end of the lower conductive sheet 14 is connected to the lower end of the battery 12 with a fixed position, the lower conductive sheet 14 cannot be subjected to the action of gravity from the battery 12, which is beneficial to improving the stability of the connection of the lower conductive sheet 14 to the lower end of the battery 12, and also avoiding the situation that the battery 12 can press the lower conductive sheet 14 under the action of gravity.

Further, a lower insulating layer is disposed between the lower end of the lower conducting strip 14 and the insulating lower shell 112, and an upper insulating layer is disposed between the upper end of the upper conducting strip 13 and the insulating upper shell 111.

It is understood that the provision of the insulating layer further improves the insulating property of the upper conductive sheet 13 and the lower conductive sheet 14 to avoid the occurrence of a leakage current.

Further, the power management module 2 includes a circuit board, an upper end of the upper conductive plate 13 is soldered to the upper surface of the circuit board, and an upper end of the lower conductive plate 14 is soldered to the upper surface of the circuit board.

The upper end of the upper conductive sheet 13 and the upper end of the lower conductive sheet 14 are both welded to the upper surface of the circuit board, so that the safety performance of the present invention can be improved. When the welding position is pressed downwards by external force, the welding position is not directly contacted with the upper end of the upper conducting sheet 13 to cause short circuit.

As shown in fig. 7, preferably, the conversion assembly 3 includes a main control module 32, an inversion module 31 and a second copper bar 33, the main control module 32 is provided with a first positioning hole, and the second copper bar 33 is electrically connected to the main control module 32 and the inversion module 31.

It will be appreciated that the inverter module 31 is adapted to transfer the power from the power supply assembly 1 to an interface on the main control module 32 in a suitable form for supplying to other devices. The main control module 32 and the inversion module 31 are electrically connected through the second copper bar 33, which is beneficial to the communication between the main control module and the inversion module to realize corresponding functions. The arrangement of the second copper bar 33 can also reduce the number of wires in the present invention.

Preferably, at least a part of the first copper bar 4 is sleeved with an insulating sleeve. The insulating cover can avoid the condition that the electric spark is produced in the during operation behind 4 electric connections of first copper bar power management module 2 and power supply module 1.

The assembly process of one embodiment of the utility model is as follows: clamping the lower conducting strip 14 between the insulating lining 113 and the insulating lower shell 112, clamping the battery 12 between the insulating lining 113 and the insulating upper shell 111, and fixing the upper conducting strip 13 on the upper surface of the insulating upper shell 111 to complete the assembly of the power supply assembly 1; the first bolt 5 is in threaded connection with the convex part 101 on the insulating upper shell 111 through a second positioning hole 21 on the power management module 2, and the power management module 2 is fixed above the power supply assembly 1; the first positioning portion 41 is welded in the third positioning hole 22, and the second bolt 6 is screwed with the second positioning portion 42 through the first positioning hole of the conversion assembly 3, so as to complete the fixation of the conversion assembly 3.

According to the energy storage device, the power management module 2 is fixed on the convex part 101 of the power supply assembly 1 through the first copper bar 4 supporting and converting assembly 3 and the first bolt 5, so that a reasonable assembly layout is formed, and the assembly of modularized components is facilitated. The conversion component 3 can be electrically connected with the power management module 2 through the first copper bar 4, so that the number of wiring harnesses is reduced, and the assembly layout of the utility model is favorably optimized. The arrangement of the first positioning hole, the second positioning hole 21, the third positioning hole 22 and the fourth positioning hole facilitates assembly of modularized components, and improvement of assembly accuracy is facilitated. The power management module 2 is fixed above the power supply assembly 1 through the first bolt 5 and the fourth positioning hole in a threaded connection mode, and therefore the situation that short circuit occurs between the power management module 2 and the power supply assembly 1 is avoided.

The above are only preferred embodiments of the present invention, and it should be noted that, for those skilled in the art, many modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. The energy storage device is characterized by comprising a power supply assembly, a power management module, a conversion assembly, a first copper bar and a first bolt, wherein the power supply assembly, the power management module and the conversion assembly are sequentially arranged from bottom to top, the conversion assembly is provided with a first positioning hole for fixing the upper end of the first copper bar, the power management module is provided with a second positioning hole and a third positioning hole for fixing the lower end of the first copper bar, a convex part is arranged at the top of the power supply assembly, a fourth positioning hole is arranged on the convex part, the first bolt is in threaded connection with the fourth positioning hole through the second positioning hole, and the power management module is electrically connected with the power supply assembly.

2. The energy storage device as claimed in claim 1, wherein a first positioning portion protruding from the lower end surface is disposed on the lower end surface of the first copper bar, and the first positioning portion is welded in the third positioning hole.

3. The energy storage device as claimed in claim 2, wherein the third positioning hole is formed by connecting a plurality of side walls end to end in sequence, and a gap is formed at the connecting position of two adjacent side walls.

4. The energy storage device as claimed in claim 2, wherein a second positioning portion protruding from the upper end surface is disposed on the upper end surface of the first copper bar, the second positioning portion extends into the first positioning hole, the energy storage device includes a second bolt, the second bolt is in threaded connection with the second positioning portion, and a head of the second bolt is connected to the upper end surface of the first positioning hole.

5. The energy storage device of claim 1, wherein the power module comprises an insulating housing, an upper conductive plate, a lower conductive plate, and a plurality of batteries, wherein the plurality of batteries are disposed in the insulating housing, a lower end of the upper conductive plate is fixed to the insulating housing and abuts against upper ends of the plurality of batteries, an upper end of the upper conductive plate is welded to the power management module, a lower end of the lower conductive plate is fixed to the insulating housing and abuts against lower ends of the plurality of batteries, and an upper end of the lower conductive plate is welded to the power management module.

6. The energy storage device according to claim 5, wherein the insulating housing includes an insulating upper case, an insulating lower case, and an insulating liner, the plurality of batteries are sandwiched between the insulating upper case and the insulating liner, the lower end of the lower conductive plate is sandwiched between the insulating liner and the insulating lower case, the insulating liner is provided with a first through hole, the lower end of the battery is fixed to an upper end surface of the first through hole, the lower end of the lower conductive plate extends into the first through hole to abut against the lower end of the battery, the insulating upper case is provided with a second through hole, and the upper end of the battery abuts against the lower end of the upper conductive plate through the second through hole.

7. The energy storage device as claimed in claim 6, wherein a lower insulating layer is disposed between the lower end of the lower conductive sheet and the lower insulating shell, and an upper insulating layer is disposed between the upper end of the upper conductive sheet and the upper insulating shell.

8. The energy storage device of claim 5, wherein the power management module comprises a circuit board, wherein the upper end of the upper conductive sheet is soldered to the upper surface of the circuit board, and the upper end of the lower conductive sheet is soldered to the upper surface of the circuit board.

9. The energy storage device of claim 1, wherein the conversion assembly comprises a main control module, an inversion module and a second copper bar, the main control module is provided with the first positioning hole, and the second copper bar is electrically connected with the main control module and the inversion module.

10. The energy storage device as claimed in any one of claims 1 to 9, wherein at least a portion of the first copper busbar is sheathed with an insulating sheath.