CN111653720A - Energy storage battery module and echelon utilization system - Google Patents
Energy storage battery module and echelon utilization system Download PDFInfo
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- CN111653720A CN111653720A CN202010647014.8A CN202010647014A CN111653720A CN 111653720 A CN111653720 A CN 111653720A CN 202010647014 A CN202010647014 A CN 202010647014A CN 111653720 A CN111653720 A CN 111653720A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The invention discloses an energy storage battery module and a echelon utilization system, wherein the energy storage battery module comprises: the energy storage battery modules are formed by connecting a plurality of energy storage battery monomers in series and parallel; the positive electrode bus bar is connected with the positive electrode output ends of the energy storage battery modules; and the negative bus bar is connected with the negative output ends of the energy storage battery modules. So set up, through being connected energy storage battery module's anodal output and anodal busbar, the negative pole output is connected with the negative pole busbar for need not to connect through the flexible conductor between a plurality of energy storage battery modules. After the plurality of energy storage battery modules are connected through the positive bus bar and the negative bus bar, short circuit can not occur due to the fact that a certain distance exists between the positive bus bar and the negative bus bar, and therefore short circuit faults between the positive pole and the negative pole of the energy storage battery modules are solved.
Description
Technical Field
The invention relates to the technical field of large-scale energy storage, in particular to an energy storage battery module and a echelon utilization system.
Background
In the large energy storage field at megawatt level, the applied energy storage battery module is usually installed in a battery box, and the energy storage battery module is compactly integrated in a closed shell of the battery box. In such a battery box, after the energy storage battery module sequentially connects the positive and negative terminals of the adjacent battery cells in series and parallel by using the connection cable, the positive and negative terminals of the energy storage battery module are finally connected to the connection terminal by the cable.
In the field of large-scale energy storage, a plurality of battery plug boxes provided with energy storage battery modules are needed, and the plurality of battery plug boxes are usually arranged adjacently to save space and facilitate operation. When a plurality of battery plug boxes need to be connected in parallel and converge, technicians generally adopt flexible conductors to connect the positive output terminals of the battery plug boxes together and the negative output terminals together, so that the convergence of the battery plug boxes is realized.
However, as shown in fig. 1, when the flexible wires are used for connection, the wires tend to overlap each other. In the current converging mode, the safety distance between the positive output terminal and the negative output terminal is small, when a large current flows through the led flexible lead, the insulation performance between the flexible leads is reduced along with the increase of the service time, and the short circuit fault between the positive electrode and the negative electrode is easy to occur.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is that the short circuit between the positive electrode and the negative electrode of the energy storage battery module is easy to occur along with the increase of the service time when the battery plug box provided with the energy storage battery module in the prior art performs current collection. Thereby providing an energy storage battery module and a echelon utilization system.
In order to achieve the above object, an embodiment of the present invention provides an energy storage battery module, including: the energy storage battery modules are formed by connecting a plurality of energy storage battery monomers in series and parallel; the positive electrode bus bar is connected with the positive electrode output ends of the energy storage battery modules; and the negative bus bar is connected with the negative output ends of the energy storage battery modules.
Optionally, the positive output end and the negative output end are oppositely arranged on two sides of the energy storage battery module.
Optionally, the energy storage battery module further includes: and the protector is arranged between the positive output end and the positive bus bar and/or between the negative output end and the negative bus bar.
Optionally, the protector is a circuit breaker or a fuse.
The embodiment of the invention also provides a echelon utilization system, which comprises: an energy storage battery module as claimed in any one of the preceding claims; a battery holder adapted to hold the energy storage battery module.
Optionally, the battery stand comprises: the support frame is provided with a plurality of battery cavities which are connected with each other, the energy storage battery modules are suitable to be placed in the battery cavities, and a dismounting port is arranged at the position, corresponding to the energy storage battery monomer, in each battery cavity.
Optionally, the positive bus bar and the negative bus bar are disposed on the battery rack.
Optionally, the battery rack further comprises: the top plate is arranged at the top of the battery rack and is suitable for sealing the top of the battery rack; the cabinet plates are arranged on one side or multiple sides of the battery rack; and the cabinet doors are rotatably arranged on the battery rack and are suitable for sealing the battery cavity.
Optionally, the top plate, the cabinet plate and the cabinet door are made of transparent materials.
Optionally, the cabinet board and the cabinet door are provided with a heat dissipation area suitable for heat dissipation of the energy storage battery module.
Compared with the prior art, the technical scheme of the invention has the following advantages:
1. the embodiment of the invention provides an energy storage battery module, which comprises: the energy storage battery modules are formed by connecting a plurality of energy storage battery monomers in series and parallel; the positive electrode bus bar is connected with the positive electrode output ends of the energy storage battery modules; and the negative bus bar is connected with the negative output ends of the energy storage battery modules.
So set up, through being connected energy storage battery module's anodal output and anodal busbar, the negative pole output is connected with the negative pole busbar for need not to connect through the flexible conductor between a plurality of energy storage battery modules. After the plurality of energy storage battery modules are connected through the positive bus bar and the negative bus bar, short circuit can not occur due to the fact that a certain distance exists between the positive bus bar and the negative bus bar, and therefore short circuit faults between the positive pole and the negative pole of the energy storage battery modules are solved.
2. According to the invention, the positive output end and the negative output end are oppositely arranged on two sides of the energy storage battery module, so that the distance between the positive bus bar and the negative bus bar can be increased to the greatest extent, and the short circuit fault between the positive electrode and the negative electrode of the energy storage battery module can be avoided.
3. According to the invention, by arranging the protector, when the inside of the energy storage battery module breaks down, the circuit can be disconnected, so that the energy storage battery module is protected. Moreover, the energy storage battery module is open compared with a battery plug box in the prior art, when the energy storage battery module breaks down, the energy storage battery monomer which breaks down can be replaced, and the energy storage battery module is not required to be replaced integrally. And when the battery capacity of the single energy storage battery is attenuated to be below the preset value of the rated capacity, the protector is directly disconnected, and the single energy storage battery is replaced, so that the single replaced energy storage battery can be subjected to resource treatment, and the single energy storage battery is utilized in a gradient manner.
4. The present invention also provides a echelon utilization system, including: an energy storage battery module as claimed in any one of the preceding claims; a battery holder adapted to hold the energy storage battery module.
So set up, can put energy storage battery monomer on the battery frame of on-the-spot assembly, technical staff can carry out nimble series-parallel connection according to the demand of different application scenarios and according to actual conditions to energy storage battery monomer, constitutes the energy storage battery module of different power. Moreover, technicians can replace the energy storage battery monomer at any time in the later period conveniently. Therefore, the replaced single energy storage battery can be subjected to resource treatment, and the single energy storage battery can be utilized in a gradient manner.
5. According to the invention, the positive bus bar and the negative bus bar are arranged on the battery rack, so that the distance between the positive electrode and the negative electrode of the energy storage battery module can be widened to the greatest extent, and the fault that the short circuit is easy to occur between the positive electrode and the negative electrode of the energy storage battery module can be avoided.
6. According to the invention, through the arrangement of the top plate, the cabinet plate and the cabinet door, the energy storage battery module can be ensured to work normally on the battery rack without being influenced by dust and impurities in the surrounding environment, and the normal work of the energy storage battery module can be better ensured. Meanwhile, the cabinet door is arranged, so that the energy storage battery monomer on the battery rack can be conveniently replaced by a technician.
7. According to the invention, the top plate, the cabinet plate and the cabinet door are made of transparent materials, so that technicians can observe the working state of the energy storage battery module on the battery rack in real time, and the working efficiency of the technicians is improved.
8. According to the invention, the heat dissipation areas are arranged on the cabinet plate and the cabinet door, so that heat generated by the energy storage battery module during working can be timely dissipated to the outside, and the normal work of the energy storage battery module is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for a worker of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of a prior art bus structure;
fig. 2 is a schematic structural diagram of an embodiment of the present invention.
Reference numerals:
1-energy storage battery monomer; 2-an energy storage battery module; 3-a protector; 4-positive bus bar; 5-a negative bus bar; 6-electrical load; 7-battery holder.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a worker skilled in the art without creative efforts based on the embodiments of the present invention, belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meanings of the above terms in the present invention can be understood in specific cases by a worker of ordinary skill in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
In the field of large-scale energy storage, a plurality of battery plug boxes provided with energy storage battery modules are needed, and the plurality of battery plug boxes are usually arranged adjacently to save space and facilitate operation. When a plurality of battery plug boxes need to be connected in parallel and converge, technicians generally adopt flexible conductors to connect the positive output terminals of the battery plug boxes together and the negative output terminals together, so that the convergence of the battery plug boxes is realized. However, as shown in fig. 1, when the flexible wires are used for connection, the wires tend to overlap each other. In the current converging mode, the safety distance between the positive output terminal and the negative output terminal is small, when a large current flows through the led flexible lead, the insulation performance between the flexible leads is reduced along with the increase of the service time, and the short circuit fault between the positive electrode and the negative electrode is easy to occur.
Example 1
As shown in fig. 2, an embodiment of the invention provides an energy storage battery module, which includes: a plurality of energy storage battery modules 2, a positive busbar 4 and a negative busbar 5.
The energy storage battery module 2 is formed by connecting a plurality of energy storage battery monomers 1 in series and parallel, an anode output end and a cathode output end are formed on the energy storage battery module 2, and a certain distance exists between the anode output end and the cathode output end. The positive outputs of all the energy storage battery modules 2 are all connected to a positive busbar 4, and the negative outputs of all the energy storage battery modules 2 are all connected to a negative busbar 5. Because the positive output end and the negative output end have a certain distance, a certain distance also exists between the positive bus bar 4 and the negative bus bar 5. The distance can be determined by a person skilled in the art according to the actual situation.
So set up, through being connected energy storage battery module 2's anodal output and anodal busbar 4, the negative pole output is connected with negative pole busbar 5 for need not to connect through the flexible conductor between a plurality of energy storage battery module 2. After the energy storage battery modules 2 are connected through the positive electrode bus bar 4 and the negative electrode bus bar 5, the short circuit condition cannot occur due to the certain distance between the positive electrode bus bar 4 and the negative electrode bus bar 5, and therefore the short circuit fault between the positive electrode and the negative electrode of the energy storage battery modules 2 is solved.
Optionally, in some embodiments of the present invention, the positive output end and the negative output end of the energy storage battery module 2 are disposed on two sides of the energy storage battery module 2, opposite to each other.
The bus-bar method widens the distance between the anode and the cathode of the energy storage battery module 2, so that the distance between the led bus-bars is correspondingly widened, the safety distance and the strength of the bus-bars are improved, the condition of mutual lap joint between carriers is avoided, and the short circuit risk is reduced.
According to the invention, the positive output end and the negative output end are oppositely arranged on two sides of the energy storage battery module 2, so that the distance between the positive bus bar 4 and the negative bus bar 5 can be increased to the greatest extent, and the short circuit fault between the positive electrode and the negative electrode of the energy storage battery module 2 can be avoided.
Optionally, in some embodiments of the present invention, the energy storage battery module further includes a protector 3, and the protector 3 is disposed between the positive output end and the positive bus bar 4, and between the negative output end and the negative bus bar 5.
Of course, the protector 3 may be provided only between the positive output terminal and the positive bus bar 4 or between the negative output terminal and the negative bus bar 5. The present embodiment is merely an example, and does not limit the position where the protector 3 is disposed. The technical personnel in the field can change the setting position of the protector 3 according to the actual situation, and can play corresponding protective action.
The protector 3 may be a circuit breaker and a fuse connected in series. Of course, the protector 3 may also be a separately provided breaker or fuse.
According to the invention, by arranging the protector 3, when a fault occurs in the energy storage battery module 2, the circuit can be disconnected, so that the energy storage battery module 2 is protected. Moreover, because the energy storage battery module 2 of the present application is open compared with the battery plug box in the prior art, when the energy storage battery module 2 fails, the failed energy storage battery cell 1 can be replaced without replacing the energy storage battery module 2 as a whole.
Moreover, when the battery capacity of the energy storage battery monomer 1 is attenuated to be below the preset value of the rated capacity, the protector 3 is directly disconnected, and the energy storage battery monomer 1 can be directly replaced, so that the replaced energy storage battery monomer 1 can be subjected to resource treatment, and the gradient utilization of the energy storage battery monomer 1 is realized. Thereby play and reduce energy storage battery module 2 fault rate, improve the stability of energy storage battery module, the effect of equipment flexibility, finally can promote the security and the whole generating efficiency of energy storage battery module.
Example 2
The present invention also provides a echelon utilization system, including: the energy storage battery module and the battery holder 7 according to the above embodiments. The battery holder 7 is adapted to receive the energy storage battery module 2 of the above-described embodiment.
So set up, technical staff can be when the site operation, put energy storage battery monomer 1 on the battery frame 7 of site assembly, and technical staff can also carry out nimble series-parallel connection according to the demand of different application scenarios and according to actual conditions to energy storage battery monomer 1, constitutes the energy storage battery module 2 of different power. In addition, technicians can replace the energy storage battery monomer 1 at any time in the later period conveniently. Therefore, the replaced energy storage battery monomer 1 can be subjected to resource treatment, and the echelon utilization of the energy storage battery monomer 1 is realized. The energy storage battery module 2 is prevented from being damaged once, and the battery plug box is not required to be integrally replaced. Thereby increasing the flexibility of the energy storage battery module 2.
Optionally, in some embodiments of the invention, the battery holder 7 comprises a plurality of holding brackets. The support frame is provided with a plurality of battery cavities which are connected with each other, the energy storage battery modules 2 are suitable to be placed in the battery cavities, and a dismounting port is arranged at the position, corresponding to the energy storage battery monomer 1, in each battery cavity. Technicians can replace and install the energy storage battery monomer 1 through the dismounting and mounting port.
The support frame is the rectangle setting, is certain spaced the setting of piling up between a plurality of support frames that set up on the battery frame 7 for the space that adjacent support frame and backup pad enclose is suitable for placing energy storage battery module 2.
The positive electrode bus bar 4 and the negative electrode bus bar 5 are provided on the battery holder 7. In order to ensure the maximum distance between the positive busbar 4 and the negative busbar 5, the positive output end and the negative output end of each energy storage battery module 2 can only be respectively led out from two opposite or adjacent sides of the battery rack 7 and then connected to the positive busbar 4 and the negative busbar 5 in parallel, and the converged large current is connected to the electric load 6 through an independent cable. The positive electrode bus bar 4 and the negative electrode bus bar 5 are bus hard bus bars.
According to the invention, the positive electrode bus bar 4 and the negative electrode bus bar 5 are arranged on the battery frame 7, so that the distance between the positive electrode and the negative electrode of the energy storage battery module 2 can be widened to the greatest extent, and the fault that the short circuit is easy to occur between the positive electrode and the negative electrode of the energy storage battery module 2 can be avoided.
Optionally, in some embodiments of the present invention, the battery holder 7 further comprises: a top plate, a plurality of cabinet plates and a plurality of cabinet doors.
The top plate is disposed on top of the battery holder 7 and is adapted to close the top of the battery holder 7. The cabinet board is arranged on one side of the battery rack 7 or on multiple sides, and the cabinet door is rotatably arranged on the battery rack 7 through a rotating shaft. The top plate, the cabinet plate and the cabinet door are surrounded to form an inner space. The cabinet door is adapted to completely enclose the battery cavity.
According to the invention, through the arrangement of the top plate, the cabinet plate and the cabinet door, the energy storage battery module can be ensured to work normally on the battery rack 7 without being influenced by dust and impurities in the surrounding environment, and the normal work of the energy storage battery module can be better ensured. Meanwhile, the cabinet door is arranged, so that technicians can conveniently replace the energy storage battery monomer 1 on the battery rack 7.
The top plate, the cabinet plate and the cabinet door are made of transparent materials, so that technicians can observe the working state of the energy storage battery modules 2 on the battery rack 7 in real time, and the working efficiency of the technicians is improved.
As an optional implementation mode, the cabinet plate and the cabinet door are provided with heat dissipation areas suitable for heat dissipation of the pure pumpkin battery module. Therefore, the heat generated by the energy storage battery module 2 during working can be timely dissipated to the outside, and the normal work of the energy storage battery module 2 is ensured.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Variations and modifications in other variations may occur to those skilled in the art based upon the foregoing description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (10)
1. An energy storage battery module, comprising:
the energy storage battery comprises a plurality of energy storage battery modules (2), wherein each energy storage battery module (2) is formed by connecting a plurality of energy storage battery monomers (1) in series and parallel;
the positive electrode bus bar (4) is connected with the positive electrode output ends of the energy storage battery modules (2);
and the negative electrode bus bar (5) is connected with the negative electrode output ends of the energy storage battery modules (2).
2. The energy storage battery module as recited in claim 1, wherein the positive output end and the negative output end are oppositely disposed on two sides of the energy storage battery module (2).
3. The energy storage battery module of claim 1, further comprising:
and the protector (3) is arranged between the positive output end and the positive bus bar (4) and/or between the negative output end and the negative bus bar (5).
4. Energy storage battery module according to claim 3, characterized in that the protector (3) is a circuit breaker and/or a fuse.
5. A echelon utilization system, comprising:
an energy storage battery module as claimed in any one of claims 1 to 4;
a battery holder (7), the battery holder (7) being adapted to place the energy storage battery module (2).
6. The echelon utilization system of claim 5, characterized in that the battery rack (7) comprises:
the energy storage battery module comprises a plurality of support frames, wherein the support frames are provided with a plurality of battery cavities which are connected with one another, the energy storage battery modules (2) are suitable for being placed in the battery cavities, and a dismounting opening is formed in the position, corresponding to the energy storage battery monomer (1), in each battery cavity.
7. The echelon utilization system of claim 5, characterized in that the positive bus bar (4) and the negative bus bar (5) are provided on the battery rack (7).
8. The echelon utilization system of any one of claims 5-7, characterized in that the battery rack (7) further comprises:
the top plate is arranged at the top of the battery rack (7) and is suitable for sealing the top of the battery rack (7);
the cabinet plates are arranged on one side or multiple sides of the battery rack (7);
and the cabinet doors are rotatably arranged on the battery rack (7) and are suitable for sealing the battery cavity.
9. The echelon utilization system of claim 8, wherein the top plate, the cabinet plate, and the cabinet door are transparent.
10. The echelon utilization system of claim 8, wherein the cabinet plate and the cabinet door are provided with heat dissipation areas adapted to dissipate heat from the energy storage battery modules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010647014.8A CN111653720A (en) | 2020-07-07 | 2020-07-07 | Energy storage battery module and echelon utilization system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010647014.8A CN111653720A (en) | 2020-07-07 | 2020-07-07 | Energy storage battery module and echelon utilization system |
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| Publication Number | Publication Date |
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| CN111653720A true CN111653720A (en) | 2020-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010647014.8A Pending CN111653720A (en) | 2020-07-07 | 2020-07-07 | Energy storage battery module and echelon utilization system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112018297A (en) * | 2020-09-27 | 2020-12-01 | 中国华电科工集团有限公司 | Battery fire protection system, energy storage battery module and echelon utilization system |
| CN113422159A (en) * | 2021-07-22 | 2021-09-21 | 中国华电科工集团有限公司 | Energy storage battery |
-
2020
- 2020-07-07 CN CN202010647014.8A patent/CN111653720A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112018297A (en) * | 2020-09-27 | 2020-12-01 | 中国华电科工集团有限公司 | Battery fire protection system, energy storage battery module and echelon utilization system |
| CN113422159A (en) * | 2021-07-22 | 2021-09-21 | 中国华电科工集团有限公司 | Energy storage battery |
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