CN219575836U - Energy storage battery pack - Google Patents
Energy storage battery pack Download PDFInfo
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- CN219575836U CN219575836U CN202320358102.5U CN202320358102U CN219575836U CN 219575836 U CN219575836 U CN 219575836U CN 202320358102 U CN202320358102 U CN 202320358102U CN 219575836 U CN219575836 U CN 219575836U
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- energy storage
- battery pack
- storage battery
- connection hole
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- 238000004146 energy storage Methods 0.000 title claims abstract description 86
- 230000003014 reinforcing effect Effects 0.000 claims description 29
- 239000006260 foam Substances 0.000 claims description 14
- 238000005192 partition Methods 0.000 claims description 9
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 239000004020 conductor Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 14
- 230000008569 process Effects 0.000 abstract description 14
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000013461 design Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 10
- 229910052802 copper Inorganic materials 0.000 description 6
- 239000010949 copper Substances 0.000 description 6
- 238000010248 power generation Methods 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- 238000009413 insulation Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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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- Battery Mounting, Suspending (AREA)
Abstract
The utility model provides an energy storage battery pack, which comprises a battery module, a battery management unit, an upper shell unit and a lower shell, wherein the battery module is arranged on the upper shell unit; the upper shell unit comprises an upper shell body and a pole column, wherein the pole column is embedded in the upper shell body and is integrally formed with the upper shell body; the opening of the upper shell body is opposite to the opening of the lower shell, the upper shell unit is fixedly connected with the lower shell, the lower shell is provided with a containing cavity, and the battery module and the battery management unit are connected and arranged in the containing cavity; the first end of the pole extends to the inside of the accommodating cavity and is connected with the battery management unit, and the second end of the pole is configured to be connected with external equipment. Through such structural design, the connection mode between the pole and the shell is changed, and the connection process is simplified, so that the production assembly efficiency of the energy storage battery pack is improved.
Description
Technical Field
The utility model relates to the technical field of storage batteries, in particular to an energy storage battery pack.
Background
With the great development of new energy power generation, especially wind power generation, photovoltaic power generation and the like, higher requirements are provided for an electric power energy storage system. Common electrical energy storage systems employ chemical energy storage, with battery energy storage systems being most widely used.
The battery module and the shell in the storage battery energy storage system are packaged in groups to form an energy storage battery pack, wherein the pole is positioned in the shell and is connected with the battery module and external equipment, and the pole and the shell are connected in a welding or glue injection mode.
However, such a connection process is complicated, and the production efficiency of the energy storage battery pack is reduced.
Disclosure of Invention
The utility model provides an energy storage battery pack, which can simplify the connection process and improve the production efficiency of the energy storage battery pack.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides an energy storage battery pack, which comprises a battery module, a battery management unit, an upper shell unit and a lower shell, wherein the battery management unit is arranged on the upper shell unit; the upper shell unit comprises an upper shell body and a pole column, wherein the pole column is embedded in the upper shell body and is integrally formed with the upper shell body; the opening of the upper shell body is opposite to the opening of the lower shell, the upper shell unit is fixedly connected with the lower shell, the lower shell is provided with a containing cavity, and the battery module and the battery management unit are connected and arranged in the containing cavity;
the first end of the pole extends to the inside of the accommodating cavity and is connected with the battery management unit, and the second end of the pole is configured to be connected with external equipment.
As one possible implementation manner, the pole is a rotating member, the circumferential outer side wall of the pole is connected with the upper shell body, the pole comprises a pole body and at least two bosses, the at least two bosses are distributed at intervals along the axial direction of the pole, and the bosses extend outwards along the radial direction of the pole;
the length of the boss extending away from the pole in the radial direction of the pole is 1-2mm.
As a possible embodiment, the circumferential outer side wall of the boss is uniformly distributed with a plurality of anti-rotation teeth along the circumferential direction of the pole.
As one possible embodiment, the pole includes a first connection hole and a second connection hole coaxially provided, the first connection hole and the second connection hole are oppositely provided, the first connection hole is opened toward the first end of the pole, the second connection hole is opened toward the second end of the pole, the first connection hole is connected with the battery management unit, the second connection hole is connected with an external device, a separation layer is formed between the bottom of the first connection hole and the bottom of the second connection hole, and the thickness of the separation layer in the axial direction of the pole is greater than or equal to 1mm.
As a possible embodiment, the first connection hole and the second connection hole are screw holes, the first connection hole is screw-connected with the battery management unit, and the second connection hole is screw-connected with an external device.
As one possible embodiment, the battery module includes a battery cell including a plurality of battery cell units, and a support member, the plurality of battery cell units being sequentially stacked and electrically connected along a width extension direction of the lower case to form a positive tab and a negative tab of the battery cell;
the battery cell is located to support piece lid, and support piece includes utmost point ear connecting portion, and anodal ear and negative pole ear weld respectively in utmost point ear connecting portion to form anodal ear connecting portion and negative pole ear connecting portion, anodal ear connecting portion and anodal ear connecting portion respectively with the first connecting hole bolted connection of different homopolar posts.
As a possible embodiment, the battery management unit comprises at least one circuit board connected to the support along the height extension of the lower housing, the circuit board being electrically connected to the support and the pole, respectively.
As one possible embodiment, the circuit board includes a first circuit board and a second circuit board, the first circuit board and the second circuit board are electrically connected, and the first circuit board is electrically connected to the positive tab connection portion and the first connection hole, respectively.
As a possible implementation manner, the battery module further comprises foam; wherein, the foam is connected to two opposite sides of the cell unit; and/or, the foam is connected to the bottom of the cell unit.
As a possible embodiment, the outer wall of at least one of the two side surfaces of the lower case body distributed along the width extending direction thereof is provided with a reinforcing portion including a plurality of first reinforcing ribs and second reinforcing ribs, the first reinforcing ribs being perpendicular to the second reinforcing ribs.
As a possible embodiment, the outer walls of the two side surfaces of the lower case distributed in the own length direction are provided with a plurality of bolt connection portions configured to be fixedly connected with the exterior member.
As a possible embodiment, the pole is an electrical conductor, the upper housing body is an injection-molded part, and is injection-molded with the pole.
As a possible embodiment, the pole further comprises an insulating sleeve, and the insulating sleeve is sleeved on the second connecting hole.
The utility model provides an energy storage battery pack, which comprises a battery module, a battery management unit, an upper shell unit and a lower shell, wherein the battery management unit is arranged on the upper shell unit; the upper shell unit comprises an upper shell body and a pole column, wherein the pole column is embedded in the upper shell body and is integrally formed with the upper shell body; the opening of the upper shell body is opposite to the opening of the lower shell, the upper shell unit is fixedly connected with the lower shell, the lower shell is provided with a containing cavity, and the battery module and the battery management unit are connected and arranged in the containing cavity; the first end of the pole extends to the inside of the accommodating cavity and is connected with the battery management unit, and the second end of the pole is configured to be connected with external equipment. Through such structural design, the connection mode between the pole and the shell is changed, and the connection process is simplified, so that the production assembly efficiency of the energy storage battery pack is improved.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a structural exploded view of an energy storage battery pack according to an embodiment of the present utility model;
fig. 2 is a schematic structural diagram of a pole in an energy storage battery pack according to an embodiment of the present utility model;
fig. 3 is a structural cross-sectional view of a pole in an energy storage battery pack according to an embodiment of the present utility model;
fig. 4 is a schematic structural diagram of a battery module in an energy storage battery pack according to an embodiment of the present utility model;
fig. 5 is a schematic structural diagram of a support member in an energy storage battery pack according to an embodiment of the present utility model;
fig. 6 is a bottom view of a support member in an energy storage battery pack according to an embodiment of the present utility model;
fig. 7 is a schematic structural diagram of a battery management unit in an energy storage battery pack according to an embodiment of the present utility model;
fig. 8 is an exploded view of a battery management unit in an energy storage battery pack according to an embodiment of the present utility model;
fig. 9 is a left side view of a battery management unit in an energy storage battery pack according to an embodiment of the present utility model;
fig. 10 is an assembled cross-sectional view of an energy storage battery pack according to an embodiment of the present utility model;
fig. 11 is a schematic structural diagram of an upper housing unit in an energy storage battery pack according to an embodiment of the present utility model;
fig. 12 is a structural cross-sectional view of an upper case unit in an energy storage battery pack according to an embodiment of the present utility model.
Reference numerals illustrate:
100-an energy storage battery pack; 110-a battery module; 120-an upper housing unit; 130-a lower housing;
111-cell; 112-a support; 113-a battery management unit; 114-soaking cotton; 121-an upper housing body; 122-pole; 131-reinforcements; 132-a bolt connection;
1111-cell units; 1121-tab connection; 1131-a circuit board; 1132-a first circuit board; 1133-a second circuit board; 1134-copper bars; 1135-arranging pins; 1221-a pole body; 1222-a boss; 1223-anti-rotation teeth; 1224-first connecting holes; 1225-a second connecting hole; 1226-isolating layer; 1227-a bolt; 1228-rubber stopper; 1229-bolting holes; 1230-insulating sleeve; 1311-first stiffener; 1312-second reinforcing ribs.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model. The following embodiments and features of the embodiments may be combined with each other without conflict.
In the prior art, along with the great development of new energy power generation, especially wind power generation, photovoltaic power generation and the like, higher requirements are provided for an electric power energy storage system. Common electrical energy storage systems employ chemical energy storage, with battery energy storage systems being most widely used. The battery module and the shell in the storage battery energy storage system are packaged in groups to form an energy storage battery pack, wherein the pole is positioned in the shell and is connected with the battery module and external equipment, and the pole and the shell are connected in a welding or glue injection mode. However, such a connection process is complicated, and the production efficiency of the energy storage battery pack is reduced.
In order to overcome the defects in the prior art, the utility model provides an energy storage battery pack, which comprises a battery module, a battery management unit, an upper shell unit and a lower shell; the upper shell unit comprises an upper shell body and a pole column, wherein the pole column is embedded in the upper shell body and is integrally formed with the upper shell body; the opening of the upper shell body is opposite to the opening of the lower shell, the upper shell unit is fixedly connected with the lower shell, the lower shell is provided with a containing cavity, and the battery module and the battery management unit are connected and arranged in the containing cavity; the first end of the pole extends to the inside of the accommodating cavity and is connected with the battery management unit, and the second end of the pole is configured to be connected with external equipment. Through such structural design, the connection mode between the pole and the shell is changed, and the connection process is simplified, so that the production assembly efficiency of the energy storage battery pack is improved.
The present utility model will be described in detail with reference to the accompanying drawings so that those skilled in the art can more clearly understand the present utility model.
The utility model provides an energy storage battery pack 100, which comprises a battery module 110, a battery management unit 113, an upper shell unit 120 and a lower shell 130; the upper housing unit 120 includes an upper housing body 121 and a pole 122, and the pole 122 is embedded in the upper housing body 121 and integrally formed with the upper housing body 121; the opening of the upper case body 121 is opposite to the opening of the lower case 130, the upper case unit 120 is fixedly connected with the lower case 130, the lower case 130 has a receiving cavity, and the battery module 110 and the battery management unit 113 are connected and disposed in the receiving cavity; the first end of the pole 122 extends into the housing cavity and is connected to the battery management unit 113, and the second end of the pole 122 is configured to be connected to an external device.
Fig. 1 is a structural exploded view of an energy storage battery pack according to an embodiment of the present utility model; fig. 10 is an assembled cross-sectional view of an energy storage battery pack according to an embodiment of the present utility model; fig. 11 is a schematic structural diagram of an upper housing unit in an energy storage battery pack according to an embodiment of the present utility model; fig. 12 is a structural cross-sectional view of an upper case unit in an energy storage battery pack according to an embodiment of the present utility model.
As shown in fig. 1, 10, 11, and 12, the energy storage battery pack 100 of the present utility model includes a battery module 110, a battery management unit 113, an upper case unit 120, and a lower case 130. The upper case unit 120 and the lower case 130 are disposed opposite to each other, the upper case unit 120 has an opening, the lower case 130 also has an opening, and the opening of the upper case unit 120 is opposite to the opening of the lower case 130, when the upper case unit 120 and the lower case 130 are fixedly connected, the inside of the upper case unit 120 and the lower case 130 together form a sealed environment, and the lower case 130 has a receiving chamber in which the battery module 110 and the battery management unit 113 are connected and disposed. The manner of the fixed connection of the upper housing unit 120 and the lower housing 130, specifically, for example; bolting, gluing, etc.
In addition, the upper housing unit 120 includes an upper housing body 121 and a pole 122, and the pole 122 is embedded in the upper housing body 121 and integrally formed with the upper housing body 121.
It can be understood that the pole 122 is embedded in the upper housing body 121, a first end of the pole 122 extends into the accommodating cavity and is connected to the battery management unit 113, and a second end of the pole 122 extends to the top of the upper housing body 121 and is used for being connected to an external device. It should be noted that, the energy storage battery pack 100 needs to distinguish between the positive electrode and the negative electrode, and correspondingly, the energy storage battery pack 100 includes a positive electrode output and a negative electrode output, and in addition, the second end of the pole 122 is used for being connected with an external device, so in this embodiment, the two poles 122 are correspondingly connected with the positive electrode and the negative electrode after the battery module 110 is connected with the battery management unit 113. Through the above structure arrangement, the connection process between the pole 122 and the upper housing body 121 is simplified, and the molding efficiency of the upper housing unit 120 is improved through a one-step molding process, thereby improving the production assembly efficiency of the energy storage battery pack 100.
As one possible embodiment, the pole 122 is a rotating member, the circumferential outer side wall of the pole 122 is connected with the upper housing body 121, the pole 122 includes a pole body 1221 and at least two bosses 1222, the at least two bosses 1222 are spaced along the axial direction of the pole 122, and the bosses 1222 extend radially outward of the pole 122; the tab 1222 extends a length of 1-2mm radially away from the pole 122 along the pole 122.
Fig. 2 is a schematic structural diagram of a pole in an energy storage battery pack according to an embodiment of the present utility model; fig. 3 is a structural cross-sectional view of a pole in an energy storage battery pack according to an embodiment of the present utility model.
Specifically, as shown in fig. 2 and 3, the pole 122 in the present embodiment is a rotating member, the pole 122 includes a pole body 1221 and three bosses 1222, the three bosses 1222 are sequentially spaced apart along the axial direction of the pole 122, the bosses 1222 extend radially outward of the pole 122, and the length of the bosses 1222 extending radially away from the pole 122 along the pole 122 is 1-2mm (L as labeled in fig. 3). In addition, an axially outer side wall of the pole 122 is connected to the upper case body 121. The provision of the boss 1222 increases the contact interface between the pole 122 and the upper case body 121, thereby improving the strength of the connection between the pole 122 and the upper case body 121. In addition, the provision of the tab 1222 increases the surface area of the pole body 1221 on its own radial plane, which in turn may increase the ability of the pole 122 to pass current, thereby improving the performance of the energy storage battery pack 100.
Optionally, a plurality of anti-rotation teeth 1223 are uniformly distributed along the circumferential outer sidewall of the boss 1222 along the circumference of the pole 122.
Referring to fig. 2 and 3, in order to improve the structural strength of the pole 122 integrally formed with the upper case body 121, the circumferential outer sidewall of the boss 1222 is uniformly provided with a plurality of anti-rotation teeth 1223 along the circumferential direction of the pole 122, and the anti-rotation teeth 1223 extend along the axial direction of the pole 122 and are recessed along the radial direction of the pole 122. The anti-rotation teeth 1223 increase the contact area between the pole 122 and the upper housing body 121, and effectively improve the torque force and the drawing force between the connection of the pole 122 and the upper housing body 121, and in particular, the torque force can reach 10.8 levels, and at the same time, the drawing force can reach 2000n·m.
Possibly, the pole 122 includes a first connecting hole 1224 and a second connecting hole 1225 coaxially disposed, the first connecting hole 1224 and the second connecting hole 1225 are disposed opposite to each other, the first connecting hole 1224 is opened toward a first end of the pole 122, the second connecting hole 1225 is opened toward a second end of the pole 122, the first connecting hole 1224 is connected to the battery management unit 113, the second connecting hole 1225 is connected to an external device, a partition layer 1226 is formed between a hole bottom of the first connecting hole 1224 and a hole bottom of the second connecting hole 1225, and a thickness of the partition layer 1226 in an axial direction of the pole 122 is greater than or equal to 1mm.
Fig. 10 is an assembled cross-sectional view of an energy storage battery pack according to an embodiment of the present utility model.
As shown in fig. 1-3 and 10, the pole 122 includes a first connecting hole 1224 and a second connecting hole 1225, where the first connecting hole 1224 and the second connecting hole 1225 are coaxially disposed opposite to each other, and the opening of the first connecting hole 1224 faces the first end of the pole 122, the opening of the second connecting hole 1225 faces the second end of the pole 122, that is, the electrical connection between the first connecting hole 1224 and the battery management unit 113, and the second connecting hole 1225 is used for connecting with an external device. Because the pole 122 communicates with the inside and the outside of the energy storage battery pack 100, in order to improve the tightness and the safety of the energy storage battery pack, a partition layer 1226 is formed between the bottoms of the first connecting hole 1224 and the second connecting hole 1225, and the partition layer 1226 can effectively block moisture and dust and other impurities outside the energy storage battery pack 100 from entering the inside of the energy storage battery pack 100 through the pole 122, thereby improving the sealing performance of the energy storage battery pack 100. The thickness of the separator layer 1226 in the axial direction of the pole 122 is greater than or equal to 1mm (see D labeled in fig. 3). It should be noted that, the thickness of the partition layer 1226 is greater than or equal to 1mm, and no upper limit is specifically set, and the design is required according to the practical situation, and the partition layer 1226 only needs to ensure that the minimum thickness is 1mm and the sealing performance of the pole 122 is ensured. The provision of the partition layer 1226 physically isolates the inside and outside connections of the pole 122, and may achieve a protection level of IP67 within the pole 122.
As an alternative embodiment, the first and second connection holes 1224 and 1225 are screw holes, the first connection hole 1224 is screw-coupled with the battery management unit 113, and the second connection hole 1225 is screw-coupled with an external device.
As shown in fig. 10, threads are disposed in the first connecting hole 1224, that is, the first connecting hole 1224 is a threaded hole, and the corresponding first connecting hole 1224 is in threaded connection with the battery management unit 113, specifically, the first connecting hole 1224 is connected with the battery management unit 113 through a bolt 1227, in order to ensure tightness at the first connecting hole 1224, a rubber plug 1228 may be additionally provided, and the rubber plug 1228 is connected with the bolt 1227 in a sealing manner. It will be appreciated that the second connection hole 1225 may be provided as a screw hole as well, and the second connection hole 1225 and the external device are connected by screw.
Possibly, the battery module 110 includes a battery cell 111 and a support 112, the battery cell 111 includes a plurality of battery cell units 1111, and the plurality of battery cell units 1111 are sequentially stacked and electrically connected along a width extension direction of the lower case 130 to form a positive tab and a negative tab of the battery cell 111;
the support 112 covers the battery cell 111, and the support 112 includes a tab connection portion 1121, where the positive tab and the negative tab are welded to the tab connection portion 1121, respectively, so as to form a positive tab connection portion and a negative tab connection portion, and the negative tab connection portion and the positive tab connection portion are connected with the first connection holes 1224 of the different poles 122 by bolts, respectively.
Fig. 1 is a structural exploded view of an energy storage battery pack according to an embodiment of the present utility model; fig. 4 is a schematic structural diagram of a battery module in an energy storage battery pack according to an embodiment of the present utility model; fig. 5 is a schematic structural diagram of a support member in an energy storage battery pack according to an embodiment of the present utility model; fig. 6 is a bottom view of a support member in an energy storage battery pack according to an embodiment of the present utility model.
As shown in connection with fig. 1 and 4 to 6, the battery module 110 includes a battery cell 111 and a support 112. The battery cell 111 includes a plurality of battery cell units 1111, the battery cell units 1111 are sequentially stacked along the width extension direction of the lower housing 130, and adjacent battery cell units 1111 are electrically connected through tabs, so that positive tabs and negative tabs of the battery cell 111 are sequentially formed, and the positive tabs and the negative tabs of the battery cell 111 are respectively electrically connected with the supporting member 112. The support 112 has a tab connection portion 1121, it is understood that the positive tab of the battery cell 111 is connected to the positive tab connection portion 1121 of the support 112, the negative tab of the battery cell 111 is connected to the negative tab connection portion 1121 of the support 112, and the support 112 is covered on the battery cell 111. After the tab connection part of the support member 112 is connected with the tab of the battery cell 111, the tab connection part 1121 on the support member 112 is connected with the pole 122 through the first connection hole 1224 in a threaded manner, and at this time, the internal circuit of the battery cell 111 is communicated with the pole 122 through the support member 112.
Optionally, the battery management unit 113 includes at least one circuit board 1131, and the circuit board 1131 is connected to the support member 112 along the height extending direction of the lower case 130, and the circuit board 1131 is electrically connected to the support member 112 and the pole 122, respectively.
Fig. 7 is a schematic structural diagram of a battery management unit in an energy storage battery pack according to an embodiment of the present utility model; fig. 8 is an exploded view of a battery management unit in an energy storage battery pack according to an embodiment of the present utility model; fig. 9 is a left side view of a battery management unit in an energy storage battery pack according to an embodiment of the present utility model.
Referring to fig. 1 and 7-10, in particular, the battery management unit 113 includes a circuit board 1131, and the circuit board 1131 is used to connect the support 112 and the pole 122, and in the energy storage battery pack 100, along the height extending direction of the lower case 130, the circuit board 1131 is electrically connected with the support 112. The battery management unit 113 includes a voltage management module, a current management module, a temperature management module, and the like, and the required functions are printed on the circuit board 1131 in a circuit form, and are electrically connected with the support 112 and the pole 122 through the circuit board 1131, so that the internal circuit of the circuit board 1131 is communicated, and the battery cell 111 is detected and managed, so that the working state and the performance parameters of the energy storage battery pack 100 are reflected in real time.
Optionally, the circuit board 1131 includes a first circuit board 1132 and a second circuit board 1133, where the first circuit board 1132 and the second circuit board 1133 are electrically connected, and the first circuit board 1132 is electrically connected to the positive tab connection portion 1121 and the first connection hole 1224, respectively.
When the assembly space is limited, in order to ensure the safety of the circuit board 1131 and prevent the circuit board 1131 from being damaged due to excessive current, a plurality of circuit board connections may be adopted to satisfy the management effect of the battery management unit 113 on the battery cells 111. Specifically, the two circuit boards 1131 in this embodiment include a first circuit board 1132 and a second circuit board 1133, and the first circuit board 1132 and the second circuit board 1133 are electrically connected after opposite insertion through pins 1135. The first circuit board 1132 is connected to the positive tab connection 1121 on the support 112 via a copper bar 1134, and both ends of the copper bar 1134 are soldered to the positive tab connection 1121 and the first circuit board 1132, respectively.
It is appreciated that the first end of the copper bar 1134 is soldered to the second circuit board 1133 and the second end of the copper bar 1134 is electrically connected to the pole 122 by a bolt 1227. At this time, the negative tab connection portion 1121 on the support 112 is also electrically connected by bolts between the copper bars 1134 and the pole 122. Correspondingly, the internal circuits of the battery cells 111 are communicated through the structure. It will be appreciated that, during connection, the tab connection portion 1121 and the pole 122 may be connected through the bolt connection hole 1229 on the support 112, and the second circuit board 1133 and the support 112 may be fixedly connected with the bolt 1227 through the bolt connection hole 1229.
As an alternative embodiment, the battery module 110 further includes foam 114; wherein, the foam 114 is connected to two opposite sides of the cell unit 1111; and/or, the foam 114 is connected to the bottom of the cell 1111.
As shown in fig. 1 and 4, the battery module 110 in this embodiment further includes foam 114, the foam 114 is connected to the surface of the cell unit 1111 outside the cell 111, the cell 111 is a storage battery, and the storage battery can generate tiny deformation in the process of charging and discharging, and the foam connected to the surfaces of the cell units 1111 on two opposite sides of the cell 111 absorbs the deformation, so as to maintain the position stability of the battery module 110 in the accommodating cavity. In addition, foam 114 is also connected to the bottom of the battery cell 111, and the foam at the bottom of the battery cell 111 can form a space between the bottom of the battery cell 111 and the lower housing 130, so as to protect the battery cell 111 and avoid the situation that the battery cell 111 is corroded when the battery cell 111 contacts the lower housing 130.
Possibly, the outer wall of at least one of two side surfaces of the lower case 130 distributed along the self width extension direction is provided with a reinforcing part 131, the reinforcing part 131 includes a plurality of first reinforcing ribs 1311 and second reinforcing ribs 1312, and the first reinforcing ribs 1311 are perpendicular to the second reinforcing ribs 1312.
In order to increase the overall strength of the lower case 130, a reinforcing part 131 is provided on a sidewall of the lower case 130, the reinforcing part 131 includes a plurality of first reinforcing ribs 1311 and second reinforcing ribs 1312, wherein the plurality of first reinforcing ribs 1311 are sequentially spaced apart along a length extension direction of the lower case 130, and the first reinforcing ribs 1311 extend along a height direction of the lower case 130; the plurality of second reinforcing ribs 1312 are sequentially spaced apart from each other along the height extending direction of the lower case 130, and the second reinforcing ribs 1312 extend along the longitudinal direction of the lower case 130. The first reinforcement bar 1311 and the second reinforcement bar 1312 are perpendicular to each other. It should be understood that the number of the first reinforcing ribs 1311 and the second reinforcing ribs 1312 need to be designed and adjusted according to the actual use situation of the energy storage battery pack 100, and the number of the first reinforcing ribs 1311 and the second reinforcing ribs 1312 is not specifically limited in this embodiment.
Alternatively, the outer walls of both sides of the lower case 130 distributed in the length direction thereof are provided with a plurality of bolt connection parts 132, and the bolt connection parts 132 are configured to be fixedly connected with an external member.
After the upper case unit 120 and the lower case 130 are bolted and the battery module 110 is packaged, there may be a case where external members are required to be fixedly connected in actual use, and for this reason, the outer sidewalls of the lower case 130, which are distributed in the length direction thereof, are provided with a plurality of bolting parts 132, and the bolting parts 132 may be fixedly connected with other external members through bolts. The number of the bolt connection portions 132 is adjusted according to the actual situation, and is not particularly limited in this embodiment.
Specifically, the pole 122 is an electrical conductor, and the upper housing body 121 is an injection-molded part and is injection-molded with the pole 122. The upper housing body 121 is formed by injection molding during processing, and the pole 122 and the upper housing body 121 can be directly formed by injection molding at the same time in a forming process, so that the pole 122 and the upper housing body 121 are fixedly connected, and the connecting process between the pole 122 and the upper housing body 121 is simplified by one-step forming process, and meanwhile, the processing efficiency of the upper housing unit 120 is improved.
Possibly, the pole 122 further comprises an insulation sleeve 1230, the insulation sleeve 1230 is sleeved in the second connection hole 1225. After the upper casing unit 120 and the lower casing 130 are fixedly connected, in order to prevent the energy storage battery pack 100 from being stained with the pole 122 by external water vapor in the process of transferring, the energy storage battery pack 100 is leaked, the insulation sleeve 1230 is sleeved on the second connecting hole 1225 connected with the pole 122 and the external mechanism, so that the transportation safety and the service life of the energy storage battery pack 100 can be effectively improved, and in addition, the insulation sleeve 1230 can effectively reduce air impurities such as dust from entering the pole 122 and the energy storage battery pack 100.
The utility model provides an energy storage battery pack, which comprises a battery module, a battery management unit, an upper shell unit and a lower shell, wherein the battery management unit is arranged on the upper shell unit; the upper shell unit comprises an upper shell body and a pole column, wherein the pole column is embedded in the upper shell body and is integrally formed with the upper shell body; the opening of the upper shell body is opposite to the opening of the lower shell, the upper shell unit is fixedly connected with the lower shell, the lower shell is provided with a containing cavity, and the battery module and the battery management unit are connected and arranged in the containing cavity; the first end of the pole extends to the inside of the accommodating cavity and is connected with the battery management unit, and the second end of the pole is configured to be connected with external equipment. Through such structural design, the connection mode between the pole and the shell is changed, and the connection process is simplified, so that the production assembly efficiency of the energy storage battery pack is improved.
It should be noted that references in the specification to "one embodiment," "an example embodiment," "some embodiments," etc., indicate that the embodiment may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Furthermore, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.
Generally, terms should be understood at least in part by use in the context. For example, the term "one or more" as used herein may be used to describe any feature, structure, or characteristic in a singular sense, or may be used to describe a combination of features, structures, or characteristics in a plural sense, at least in part depending on the context. Similarly, terms such as "a" or "an" may also be understood to convey a singular usage or a plural usage, depending at least in part on the context.
It should be readily understood that the terms "on … …", "above … …" and "above … …" in this disclosure should be interpreted in the broadest sense such that "on … …" means not only "directly on something", but also includes "on something" with intermediate features or layers therebetween, and "above … …" or "above … …" includes not only the meaning "on something" or "above" but also the meaning "above something" or "above" without intermediate features or layers therebetween (i.e., directly on something).
Further, spatially relative terms, such as "below," "beneath," "above," "over," and the like, may be used herein for ease of description to describe one element or feature's relationship to another element or feature as illustrated. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may have other orientations (90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.
Claims (13)
1. The energy storage battery pack is characterized by comprising a battery module, a battery management unit, an upper shell unit and a lower shell; the upper shell unit comprises an upper shell body and a pole, and the pole is embedded in the upper shell body and integrally formed with the upper shell body; the opening of the upper shell body is opposite to the opening of the lower shell, the upper shell unit is fixedly connected with the lower shell, the lower shell is provided with a containing cavity, and the battery module is connected with the battery management unit and is arranged in the containing cavity;
the first end of the pole extends into the accommodating cavity and is connected with the battery management unit, and the second end of the pole is configured to be connected with external equipment.
2. The energy storage battery pack of claim 1, wherein the pole is a rotating member, the circumferential outer side wall of the pole is connected with the upper housing body, the pole comprises a pole body and at least two bosses, the at least two bosses are spaced apart along the axial direction of the pole, and the bosses extend radially outward of the pole;
the length of the boss extending away from the pole in the radial direction of the pole is 1-2mm.
3. The energy storage battery pack of claim 2, wherein the circumferential outer side wall of the boss is uniformly distributed with a plurality of anti-rotation teeth along the circumferential direction of the pole.
4. The energy storage battery pack according to any one of claims 1-3, wherein the pole includes a first connection hole and a second connection hole coaxially provided, the first connection hole and the second connection hole being disposed opposite to each other, the first connection hole opening toward a first end of the pole, the second connection hole opening toward a second end of the pole, the first connection hole and the battery management unit being connected, the second connection hole and the external device being connected, a partition layer being formed between a hole bottom of the first connection hole and a hole bottom of the second connection hole, a thickness of the partition layer in an axial direction of the pole being greater than or equal to 1mm.
5. The energy storage battery pack of claim 4, wherein the first connection hole and the second connection hole are screw holes, the first connection hole and the battery management unit are screw-connected, and the second connection hole is screw-connected with the external device.
6. The energy storage battery pack according to claim 5, wherein the battery module comprises a cell and a support, the cell comprising a plurality of cell units, the plurality of cell units being sequentially stacked and electrically connected along a width extension direction of the lower case to form a positive electrode tab and a negative electrode tab of the cell;
the support piece covers and locates the electricity core, the support piece includes utmost point ear connecting portion, anodal ear with the negative pole ear weld respectively in utmost point ear connecting portion to form anodal ear connecting portion and negative pole ear connecting portion, anodal ear connecting portion with anodal ear connecting portion respectively with the difference the first connecting hole threaded connection of utmost point post.
7. The energy storage battery pack of claim 6, wherein the battery management unit includes at least one circuit board connected to the support along a height extension direction of the lower case, the circuit board being electrically connected to the support and the pole, respectively.
8. The energy storage battery pack of claim 7, wherein the circuit board comprises a first circuit board and a second circuit board, the first circuit board and the second circuit board being electrically connected, the first circuit board being electrically connected to the positive tab connection portion and the first connection hole, respectively.
9. The energy storage battery pack of any one of claims 6-8, wherein the battery module further comprises foam; wherein,,
the foam is connected to two opposite sides of the battery cell unit; and/or the foam is connected to the bottom of the battery cell unit.
10. The energy storage battery pack according to claim 9, wherein the outer wall of at least one of two side surfaces of the lower case body distributed in the self-width extending direction is provided with a reinforcing portion including a plurality of first reinforcing ribs and second reinforcing ribs, the first reinforcing ribs being perpendicular to the second reinforcing ribs.
11. The energy storage battery pack according to claim 10, wherein outer walls of both sides of the lower case distributed in a length direction thereof are provided with a plurality of bolt connection portions configured to be fixedly connected with an external member.
12. The energy storage battery pack of claim 10 or 11, wherein the pole is an electrical conductor, the upper housing body is an injection molded part, and is injection molded with the pole.
13. The energy storage battery pack of claim 12, wherein the pole further comprises an insulating sleeve, the insulating sleeve being disposed over the second connection aperture.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320358102.5U CN219575836U (en) | 2023-02-28 | 2023-02-28 | Energy storage battery pack |
| PCT/CN2024/074556 WO2024179253A1 (en) | 2023-02-28 | 2024-01-29 | Energy storage battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320358102.5U CN219575836U (en) | 2023-02-28 | 2023-02-28 | Energy storage battery pack |
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| Publication Number | Publication Date |
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| CN219575836U true CN219575836U (en) | 2023-08-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202320358102.5U Active CN219575836U (en) | 2023-02-28 | 2023-02-28 | Energy storage battery pack |
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| CN (1) | CN219575836U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024179253A1 (en) * | 2023-02-28 | 2024-09-06 | 珠海冠宇动力电源有限公司 | Energy storage battery pack |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024179253A1 (en) * | 2023-02-28 | 2024-09-06 | 珠海冠宇动力电源有限公司 | Energy storage battery pack |
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