CN223230494U - Household energy storage system - Google Patents
Household energy storage systemInfo
- Publication number
- CN223230494U CN223230494U CN202421589244.3U CN202421589244U CN223230494U CN 223230494 U CN223230494 U CN 223230494U CN 202421589244 U CN202421589244 U CN 202421589244U CN 223230494 U CN223230494 U CN 223230494U
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- Prior art keywords
- fuse
- battery module
- end plate
- output terminal
- energy storage
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Abstract
The utility model belongs to the field of energy storage devices, and particularly relates to a household energy storage system which comprises a shell, a battery module, a first output terminal, a second output terminal, a first fuse and a second fuse, wherein the battery module is arranged in the shell, the first fuse, the second fuse, the first output terminal and the second output terminal are arranged on the shell, the first fuse is provided with a first connecting end and a second connecting end, the second fuse is provided with a first connecting part and a second connecting part, the first connecting end is electrically connected with the positive electrode of the battery module, the second connecting end is electrically connected with the first output terminal, the first connecting part is electrically connected with the negative electrode of the battery module, and the first connecting part is electrically connected with the second output terminal. When the battery module works normally, the first fuse and the second fuse are not fused, the battery module is connected with external equipment through the first output terminal and the second output terminal to supply power, and after abnormal work, the first fuse and the second fuse are fused to protect the battery module and the whole circuit.
Description
Technical Field
The utility model belongs to the technical field of energy storage, and particularly relates to a household energy storage system.
Background
The lithium battery is a green environment-friendly battery, can be repeatedly charged for many times, and accords with the strategy of sustainable development. Under the environment, the research and the production of the lithium battery become new growth points of the lithium battery, and the worldwide lithium battery industry is driven to continuously and rapidly grow.
The household energy storage is a novel energy solution taking a high-efficiency lithium iron phosphate battery as a core, can supply power for families in daily life, and can provide a standby power supply in the case of power failure or emergency. The household energy storage can store clean energy such as light energy, wind energy, water energy and the like through the intelligent control system, so that the utilization of renewable energy sources is realized, and the energy cost is saved for families.
The existing household energy storage lithium battery module is not provided with relevant safety protection measures, and potential safety hazards exist in the daily use process.
Disclosure of utility model
Aiming at the problems that the existing household energy storage lithium battery module is not provided with relevant safety protection measures and potential safety hazards exist in the daily use process, the utility model provides a household energy storage system.
In order to solve the technical problems, the embodiment of the utility model provides a household energy storage system, which comprises a shell, a battery module, a first output terminal, a second output terminal, a first fuse and a second fuse, wherein the battery module is arranged in the shell, and the first fuse, the second fuse, the first output terminal and the second output terminal are arranged on the shell;
the first fuse is provided with a first connecting end and a second connecting end, and the second fuse is provided with a first connecting part and a second connecting part;
The first connecting end is electrically connected with the positive electrode of the battery module, the second connecting end is electrically connected with the first output terminal, the first connecting portion is electrically connected with the negative electrode of the battery module, and the first connecting portion is electrically connected with the second output terminal.
Optionally, the first fuse is a fuse, and the second fuse is an air switch.
Optionally, the battery pack comprises a shell, a battery module, a first fuse, a second fuse, a first output terminal and a second output terminal, wherein the shell comprises an upper shell, a lower shell and a panel, the fixing frame is used for connecting the battery module with the lower shell, the upper shell, the lower shell and the panel are mutually connected to enclose a containing cavity, the battery module is arranged in the containing cavity, the second fuse is arranged on the panel, the first fuse is arranged on the inner side wall of the lower shell, and the first output terminal and the second output terminal are both arranged on the panel.
Optionally, the battery module further comprises a control module, wherein the control module is electrically connected with the first fuse, the second fuse and the battery module respectively.
Optionally, the battery module includes anodal connecting piece, negative pole connecting piece and electric core group, anodal connecting piece connect battery module's anodal with first link, the negative pole connecting piece is connected battery module's negative pole with the second link.
Optionally, the battery module includes conductive connection piece, the electric core group is provided with a plurality of, adjacent electric core group passes through conductive connection piece electricity is connected.
Optionally, the battery cell group includes a plurality of spacers, a plurality of electrical connectors, and a plurality of battery cells;
the plurality of electric cores are arranged along a first direction, the spacers are arranged between two adjacent electric cores, and the electric connecting piece is connected between the adjacent electric cores so as to realize the series connection of the plurality of electric cores.
Optionally, the battery cell group further includes a first end plate, a second end plate, a first side fixing plate, a second side fixing plate and a pressing strip, where the first end plate and the second end plate are respectively disposed at two ends of the first direction, and the first end plate and the second end plate sandwich a plurality of battery cells;
The first side fixing plate and the second side fixing plate are arranged at two ends of the second direction, two sides of the first direction of the first side fixing plate are respectively connected with the first end plate and the second end plate, two sides of the first direction of the second side fixing plate are respectively connected with the first end plate and the second end plate, the bottom of the first side fixing plate is bent towards the center of the bottom wall of the battery cell group, the bottom of the second side fixing plate is bent towards the center of the bottom wall of the battery cell group, and the first end plate, the second end plate, the first side fixing plate and the second side fixing plate enclose a containing cavity for placing the battery cell group;
The two ends of the pressing strip are respectively connected with the first end plate and the second end plate, and the pressing strip is arranged above the battery cell group;
The pressing strip is provided with a wire slot, and the wire slot extends along the first direction;
The first direction and the second direction have an included angle which is different from zero.
Optionally, the battery module further includes a first foam and a second foam, the first foam is disposed between the battery cell group and the first end plate, and the second foam is disposed between the battery cell group and the second end plate.
Optionally, the battery module further includes an insulating layer, the insulating layer is disposed between the battery cell group and the upper case, and the insulating layer extends along the arrangement direction of the plurality of battery cells.
According to the household energy storage system, when the household energy storage system works normally, the first fuse and the second fuse are not fused, the anode and the cathode of the battery module are connected with external equipment through the first output terminal and the second output terminal, power is supplied to the external equipment, but when the household energy storage system is abnormal, the first fuse arranged between the anode of the battery module and the first output terminal and the second fuse arranged between the cathode of the anode module and the second output terminal are fused, so that the circuit breaking of an integral circuit is realized, and the battery module and the integral circuit are protected at first time.
Drawings
Fig. 1 is a schematic diagram of an overall structure of a household energy storage system according to an embodiment of the present utility model;
FIG. 2 is an exploded view of a household energy storage system according to an embodiment of the present utility model;
fig. 3 is an overall schematic diagram of a battery module of a household energy storage system according to an embodiment of the present utility model;
Fig. 4 is an exploded view of a battery module of a household energy storage system according to an embodiment of the present utility model;
FIG. 5 is an exploded view of a battery cell pack of a household energy storage system according to an embodiment of the present utility model;
Fig. 6 is a schematic circuit diagram of a household energy storage system according to an embodiment of the utility model.
The reference numerals in the specification are 1, a battery module, 11, a battery cell group, 111, a battery cell, 112, a spacer, 113, an electric connector, 114, a first end plate, 115, a second end plate, 116, a first side fixing plate, 117, a second side fixing plate, 118, a pressing strip, 119, a wire slot, 12, a positive electrode connector, 13, a negative electrode connector, 14, a conductive connector, 15, first foam, 16, second foam, 17, an insulating layer, 2, a first output terminal, 3, a second output terminal, 4, a first fuse, 5, a second fuse, 61, an upper shell, 62, a lower shell, 63, a panel, 64, a fixing frame, 7, a control module, 81, a CAN communication interface, 82, a communication debugging port, 83, a display lamp, 91 and an insulating seat.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects solved by the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
As shown in fig. 1 and 2, and referring to fig. 6, an embodiment of the present utility model provides a household energy storage system, which includes a housing, a battery module 1, a first output terminal 2, a second output terminal 3, a first fuse 4 and a second fuse 5, wherein the battery module 1 is disposed in the housing, and the first fuse 4, the second fuse 5, the first output terminal 2 and the second output terminal 3 are disposed on the housing. The first fuse 4 has a first connection end and a second connection end, and the second fuse 5 has a first connection portion and a second connection portion. The positive pole of battery module 1 is connected to first link electricity, and first output terminal 2 is connected to the second link electricity, and the negative pole of battery module 1 is connected to first connecting portion electricity, and second output terminal 3 is connected to first connecting portion electricity.
When the household energy storage system of the embodiment works normally, the first fuse 4 and the second fuse 5 are not fused, the anode and the cathode of the battery module 1 are connected with external equipment through the first output terminal 2 and the second output terminal 3, power is supplied to the external equipment, but after the household energy storage system is abnormal, the first fuse 4 arranged between the anode of the battery module 1 and the first output terminal 2 and the second fuse 5 arranged between the cathode of the anode module and the second output terminal 3 are fused, so that the circuit breaking of the whole circuit is realized, and the battery module 1 and the whole circuit are protected at the first time.
As an example, the first fuse 4 is a fuse and the second fuse 5 is an air switch. In this embodiment, the fuse is heated and melted, and the heat generated by excessive current or heat generated by line short circuit can be broken and protected. And when the actual current exceeds the rated current, the air switch is opened. The first fuse 4 and the second fuse 5 respectively conduct multidirectional protection on the household energy storage system from two protection angles.
Referring to fig. 2, as an example, the home energy storage system includes a fixing frame 64, an upper case 61, a lower case 62, and a panel 63. The mount 64 is connected with the battery module 1 and the lower case 62 respectively to connect the battery module 1 with the lower case 62, and the upper case 61, the lower case 62 and the panel 63 are connected with each other to enclose and establish the accommodation chamber, and the battery module 1 is arranged in the accommodation chamber, and the second fuse 5 is installed on the panel 63, and the first fuse 4 is installed on the lower case 62, and the first output terminal 2 and the second output terminal 3 are all installed on the panel 63. The household energy storage system in this embodiment is in a rectangular parallelepiped shape, so the lower case 62 has a bottom wall and three side walls, so that the lower case 62 has an upper opening and a lateral opening, the upper case 61 and the lower case 62 are connected to close the upper opening of the lower case 62, and the panel 63 is connected to the upper case 61 and the lower case 62 to close the lateral opening of the lower case 62, respectively, thereby forming a receiving chamber, and in this embodiment the upper case 61, the lower case 62 and the panel 63 are connected to each other by screws.
As an example, the upper case 61, the lower case 62, and the panel 63 are all made of SPCC.
In this embodiment, a plurality of threaded holes are formed in the fixing frame 64, the fixing frame 64 is connected with the battery module 1 through screws, and the battery module 1 is stably arranged in the accommodating cavity through the screws and the lower case 62.
In this embodiment, the household energy storage system further includes a control module 7, specifically, the control module 7 is a BMS module, and the control module 7 is electrically connected to the first fuse 4, the second fuse 5, and the battery module 1, respectively.
Referring to fig. 1, a communication debug port 82, a CAN communication interface, and a display lamp 83 are further provided on the panel 63, and the communication debug port 82, the CAN communication interface 82, and the display lamp 83 are electrically connected with the BMS module, respectively. In this embodiment, the air switch, the communication debug port 82, the CAN communication port 82 and the display lamp 83 are arranged on the panel 63 in a centralized manner, which is convenient for personnel to use.
Referring to fig. 2 and 3, in the present embodiment, the positive electrode connecting member 12, the negative electrode connecting member 13, the conductive connecting member 14, and the battery cell group 11, the positive electrode connecting member 12 connects the positive electrode and the first connection terminal of the battery module 1, and the negative electrode connecting member 13 connects the negative electrode and the second connection terminal of the battery module 1. The positive electrode connector 1212 includes two copper bars, the shapes of which are changed according to the layout of the accommodating cavity, and in this embodiment, the shapes of the two copper bars as the positive electrode connector 12 are different. The battery module 1 includes a plurality of conductive connecting members 14, the battery cell groups 11 are provided, and the adjacent battery cell groups 11 are electrically connected through the conductive connecting members 14, and in this embodiment, two battery cell groups 11 are provided. Two copper bars serving as positive electrode connecting pieces 12 are respectively connected to two ends of the first fuse 4, one copper bar serving as the positive electrode connecting pieces 12 is connected with the first output terminal 2 at one end far away from the first fuse 4, and the other copper bar serving as the positive electrode connecting pieces 12 is connected with the positive electrode of the battery module 1 at one end far away from the first fuse 4. The conductive connecting member 14 is a metal member capable of conducting electricity, and in this embodiment, the conductive connecting member 14 is made of copper. The negative electrode connecting member 13 includes two wire harnesses, two wire harnesses are connected respectively at both ends of the second fuse 5, one of them is connected to the second output terminal 3 as the one end of the wire harness of the negative electrode connecting member 13 that is far away from the second fuse 5, and the other is connected to the negative electrode of the battery module 1 as the one end of the wire harness of the negative electrode connecting member 13 that is far away from the second fuse 5.
In this embodiment, the positive electrode connecting piece 12 is connected with the positive electrode of the battery cell group 11 through a copper sheet, and the negative electrode connecting piece 13 is also connected with the negative electrode of the battery cell group 11 through a copper sheet. In other embodiments, positive electrode connection 12 is directly connected to the positive electrode of cell stack 11, and negative electrode connection 13 is directly connected to the negative electrode of cell stack 11.
Referring to fig. 4 and 5, as an example, the battery cell group 11 includes a plurality of spacers 112, a plurality of electrical connection members 113, and a plurality of battery cells 111, the plurality of battery cells 111 are arranged along a first direction, the spacers 112 are disposed between two adjacent battery cells 111, and the plurality of battery cells 111 are connected in series through the plurality of electrical connection members 113. Specifically, the negative electrode of one cell 111 and the positive electrode of the adjacent cell 111 are connected in series through the electrical connection member 113, and after the plurality of cells 111 are connected in series through the electrical connection member 113, the cell group 11 is formed.
As an example, the battery cell group 11 further includes a first end plate 114, a second end plate 115, a first side fixing plate 116, a second side fixing plate 117, and a pressing bar 118, and the first end plate 114 and the second end plate 115 are disposed at two ends of the first direction, respectively.
The first end plate 114 and the second end plate 115 are connected respectively to the both ends in the second direction of first side fixed plate 116 and second side fixed plate 117 electric core group 11, the first end plate 114 and the second end plate 115 are connected respectively to the both sides in the first direction of first side fixed plate 116, the bottom of first side fixed plate 116 is buckled towards the center of the diapire of electric core group 11, the bottom of second side fixed plate 117 is buckled towards the center of the diapire of electric core group 11, first end plate 114, second end plate 115, first side fixed plate 116, second side fixed plate 117 enclose and establish the chamber that holds that is used for placing electric core group 11. In this embodiment, the bottom walls of the first side fixing plate 116 and the second side fixing plate 117 extend toward the bottom wall of the battery cell group 11, and the extending lengths are adjusted according to actual needs. The battery cell 111 is placed into the accommodating chamber from the upper opening of the accommodating chamber.
The first end plate 114 and the second end plate 115 are respectively connected to both ends of the pressing bar 118, the pressing bar 118 is arranged above the battery cell groups 11, and the pressing bar 118 is arranged in the middle of the two battery cell groups 11.
Referring to fig. 4, as an example, a wire groove 119 is provided on the molding 118, and the wire groove 119 extends in the arrangement direction of the plurality of battery cells 111. The pressing bar 118 is a sheet metal part, a wire groove 119 is formed by bending, and two ends of the pressing bar 118 are respectively connected with the first end plate 114 and the second end plate 115 through screws. The wire slot 119 functions to allow wires to pass through the wire slot 119.
Referring to fig. 4 and 5, as an example, the battery module 1 further includes a first foam 15 and a second foam 16, the first foam 15 is disposed between the battery cell group 11 and the first end plate 114, and the second foam 16 is disposed between the battery cell group 11 and the second end plate 115. The first foam 15 can reduce friction and collision between the battery cell 111 and the first terminal plate 114, and plays a role of buffering.
As an example, the battery module 1 further includes an insulating layer 17, the insulating layer 17 being disposed between the battery cells 111 and the upper case 61, the insulating layer 17 extending along the arrangement direction of the plurality of battery cells 111. In this embodiment, the insulating layer 17 may be insulating paper, and is directly adhered to the conductive connecting member 14 and the electrical connecting member 113, and the insulating layer 17 is used for insulating and protecting the upper case 61 and the battery cell 111.
In the present embodiment, the insulating holders 91 are fixed to the first end plate 114 and the second end plate 115, respectively, and the insulating holders 91 on the first end plate 114 are disposed below the positive electrode connector 12 to perform insulation protection on the positive electrode connector 12 and the first end plate 114, and at the same time, to perform insulation protection on the panel 63 and the positive electrode connector 12. Similarly, the insulating seat 91 on the second end plate 115 is disposed below the negative electrode connector 13 to insulate and protect the negative electrode connector 13 and the second end plate 115, and also to insulate and protect the lower case 62 and the negative electrode connector 13
In other embodiments, both the first fuse 4 and the second fuse 5 are fuses.
In other embodiments, both the first fuse 4 and the second fuse 5 are air switches.
In other embodiments, the positive connection, the negative connection, and the cell stack may be provided in only one cell stack, and in embodiments having only one cell stack, no conductive connection is required.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421589244.3U CN223230494U (en) | 2024-07-05 | 2024-07-05 | Household energy storage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421589244.3U CN223230494U (en) | 2024-07-05 | 2024-07-05 | Household energy storage system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223230494U true CN223230494U (en) | 2025-08-15 |
Family
ID=96696050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421589244.3U Active CN223230494U (en) | 2024-07-05 | 2024-07-05 | Household energy storage system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223230494U (en) |
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2024
- 2024-07-05 CN CN202421589244.3U patent/CN223230494U/en active Active
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