CN220627993U - Battery pack - Google Patents
Battery pack Download PDFInfo
- Publication number
- CN220627993U CN220627993U CN202322319071.5U CN202322319071U CN220627993U CN 220627993 U CN220627993 U CN 220627993U CN 202322319071 U CN202322319071 U CN 202322319071U CN 220627993 U CN220627993 U CN 220627993U
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- liquid
- cooling plate
- liquid cooling
- plate
- battery module
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- 239000007788 liquid Substances 0.000 claims abstract description 275
- 238000001816 cooling Methods 0.000 claims abstract description 183
- 239000000110 cooling liquid Substances 0.000 claims description 17
- 238000004891 communication Methods 0.000 claims description 10
- 239000010410 layer Substances 0.000 description 35
- 238000010992 reflux Methods 0.000 description 22
- 238000010438 heat treatment Methods 0.000 description 21
- 239000002355 dual-layer Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 9
- 238000013461 design Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000007704 transition Effects 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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- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The utility model provides a battery pack, which comprises a box body and a box cover; the battery module comprises an upper layer battery module and a lower layer battery module; the first liquid cooling plate is arranged in the box body, and the upper layer battery module is arranged on the first liquid cooling plate; the second liquid cooling plate is arranged at the bottom of the box body, and the lower battery module is arranged on the second liquid cooling plate; the box body further comprises a first side plate and a second side plate which are oppositely arranged, the first side plate is provided with a first protruding structure, the second side plate is provided with a second protruding structure, one end of the first liquid cooling plate is fixed on the first protruding structure, and the other end of the first liquid cooling plate is fixed on the second protruding structure.
Description
Technical Field
The utility model relates to the technical field of batteries, in particular to a battery pack.
Background
The power battery includes the battery package of individual layer battery module and the battery package of double-deck battery module, the quantity of the electric core that the inside of the battery package of individual layer battery module held is less and the energy density of battery package is lower, consequently, the battery package that has double-deck battery module uses comparatively extensively in the power battery of large capacity, the battery package of double-deck battery module includes upper strata battery module and lower floor's battery module among the correlation technique, wherein upper strata battery module needs to dispose middle backup pad and upper strata liquid cooling plate and cools off, lower floor's battery module needs to dispose bottom support plate and supports and lower floor liquid cooling plate cools off, thereby lead to the inner structure of battery package complicated.
Disclosure of Invention
The embodiment of the utility model provides a battery pack, which can improve the technical problem of complex internal structure of the battery pack provided with a double-layer battery module.
In a first aspect, embodiments of the present utility model provide a battery pack including:
the box body comprises an open inner cavity, the box cover is connected to the open part of the box body, and the box body and the box cover are enclosed to form a containing chamber;
the battery module comprises an upper layer battery module and a lower layer battery module;
the first liquid cooling plate is arranged in the box body, and the upper layer battery module is arranged on the first liquid cooling plate;
the second liquid cooling plate is arranged at the bottom of the box body, and the lower battery module is arranged on the second liquid cooling plate;
the box body further comprises a first side plate and a second side plate which are oppositely arranged, the first side plate is provided with a first protruding structure, the second side plate is provided with a second protruding structure, one end of the first liquid cooling plate is fixed on the first protruding structure, and the other end of the first liquid cooling plate is fixed on the second protruding structure.
In an embodiment, the first side plate and the second side plate each include a first portion and a second portion connected, the second portion is disposed to protrude away from the case body with respect to the first portion, and the first protrusion structure or the second protrusion structure is disposed between the first portion and the second portion.
In an embodiment, the first portion of the first side plate, the second portion of the first side plate, and the first protrusion structure are integrally formed, and the first portion of the second side plate, the second portion of the second side plate, and the second protrusion structure are integrally formed.
In one embodiment, the first liquid cooling plate is fixed on the box body through bolts.
In an embodiment, the battery pack further comprises a PTC heating plate integrated on the first liquid cooling plate and/or the PTC heating plate integrated on the second liquid cooling plate.
In one embodiment, the battery pack further comprises:
the liquid inlet is used for supplying the flowing-in cooling liquid to the first liquid cooling plate and the second liquid cooling plate, and the liquid outlet is used for allowing the flowing-out liquid of the first liquid cooling plate and the second liquid flow plate, wherein the liquid inlet and the liquid outlet are positioned on the same side;
the liquid inlet pipe is communicated with the first liquid cooling plate and the second liquid cooling plate, the liquid outlet pipe is communicated with the first liquid cooling plate and the second liquid cooling plate, and the liquid inlet pipe is located away from the liquid inlet and the other side of the liquid outlet.
In an embodiment, the liquid inlet and the liquid outlet are disposed on a first side of the second liquid cooling plate, and the liquid inlet pipe and the liquid outlet pipe are disposed on a second side of the second liquid cooling plate, where the first side and the second side are disposed opposite to each other.
In an embodiment, the first liquid cooling plate includes a first backflow liquid channel, the second liquid cooling plate includes a second backflow liquid channel, an inlet of the liquid outlet pipe is communicated with an outlet of the first backflow liquid channel, an outlet of the liquid outlet pipe is communicated with an inlet of the second backflow liquid channel, and an outlet of the second backflow liquid channel is communicated with the liquid outlet.
In an embodiment, the length of the flow channel of the first liquid cooling plate is the same as the length of the flow channel of the second liquid cooling plate.
In an embodiment, the flow channel of the first liquid cooling plate extends in an S shape, or the flow channel of the second liquid cooling plate extends in an S shape.
The embodiment of the utility model has the beneficial effects that:
in the embodiment of the utility model, the middle supporting plate and the first liquid cooling plate are integrated into a whole, the bottom supporting plate and the second liquid cooling plate are integrated into a whole, meanwhile, the first side plate of the box body is provided with the first protruding structure, the second side plate of the box body is provided with the second protruding structure, one end of the first liquid cooling plate is fixed on the first protruding structure, and the other end of the first liquid cooling plate is fixed on the second protruding structure, so that the internal structure of the battery pack of the double-layer battery module is fully simplified, and the installation efficiency of the battery pack is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a perspective view of a double-layered battery module provided by an embodiment of the present utility model;
fig. 2 is a sectional view of a double-layered battery module provided by an embodiment of the present utility model;
fig. 3 is a sectional view of a double-layered battery module according to an embodiment of the present utility model with a case cover removed;
FIG. 4 is a schematic diagram of a liquid flow direction of a dual layer liquid cooling system according to an embodiment of the present utility model;
fig. 5 is a top view of a double-layered battery module according to an embodiment of the present utility model with a case cover removed;
fig. 6 is a perspective view of a dual battery module according to still another embodiment of the present utility model.
Reference numerals:
100. a double-layer battery module; 200. a double-layer liquid cooling system; 11. a case; 111. a first flange; 12. a case cover; 121. a second flange; 13. a bolt; 14. a first housing chamber; 15. a second housing chamber; 16. a side plate; 161. a first side plate; 162. a second side plate; 163. a third side plate; 164. a fourth side plate; 165. a first portion; 166. a second portion; 17. a bump structure; 171. a first bump structure; 172. a second bump structure; 18. a threaded hole; 21. a first liquid cooling plate; 211. a third flow passage; 212. a fourth flow passage; 213. a first reflux passage; 22. a second liquid cooling plate; 221. a first flow passage; 222. a second flow passage; 223. a second reflux passage; 31. a liquid inlet; 32. a liquid outlet; 33. a liquid inlet pipe; 34. a liquid outlet pipe; 40. PTC heating plate; 41. an anode interface; 42. a negative electrode interface; 43. a heating control switch; 44. maintaining the switch; 45. and a communication interface.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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 fall within the scope of the utility model. Furthermore, it should be understood that the detailed description is presented herein for purposes of illustration and description only, and is not intended to limit the utility model. In the present utility model, unless otherwise indicated, terms of orientation such as "upper" and "lower" are used to generally refer to the upper and lower positions of the device in actual use or operation, and specifically the orientation of the drawing figures; while "inner" and "outer" are for the outline of the device.
Example 1
An embodiment of the present application also provides a battery pack that may be used in various electric vehicle models or other energy supply devices requiring the use of a battery pack that includes a plurality of double-layer battery modules.
An embodiment of the present application provides a double-layer battery module 100, as shown in fig. 1 and 2, the double-layer battery module 100 includes a case 11 and a case cover 12, wherein the case 11 includes a square case structure in which a plurality of side plates 16 enclose to form an open end, the case cover 12 is configured as a cover structure, the case cover 12 is connected at the open end of the case 11, in one example, the case cover 12 is connected at the open end of the case 11 through a plurality of bolts 13 arranged circumferentially, a circle of first flanges 111 are provided at the open end of the case 11, a circle of second flanges 121 are correspondingly provided at the bottom end of the case cover 12, a circle of first threaded holes are provided on the first flanges 111, a circle of second threaded holes are provided on the second flanges 121, the second flanges 121 cover on the first flanges 111, and the bolts 13 respectively pass through the second threaded holes and the first threaded holes to be fixed.
A support plate is further disposed inside the case 11, and is configured to longitudinally divide a housing cavity formed by enclosing the case 11 and the case cover 12 into a first housing chamber 14 and a second housing chamber 15, where the volumes of the first housing chamber 14 and the second housing chamber 15 are substantially the same, the inside of the first housing chamber 14 is configured to house an upper battery module (not shown), and the inside of the second housing chamber 15 is configured to house a lower battery module (not shown).
The dual-layer battery module 100 further includes a first liquid cooling plate 21 and a second liquid cooling plate 22, where the first liquid cooling plate 21 is disposed at the bottom of the first accommodating chamber 14, and the second liquid cooling plate 22 is disposed at the bottom of the second accommodating chamber 15, and in a preferred implementation, the first liquid cooling plate 21 is integrally disposed with the support plate, and the first liquid cooling plate 21 is used for supporting the upper-layer battery module, and meanwhile, the first liquid cooling plate 21 is used for cooling the upper-layer battery module. The second liquid cooling plate 22 is integrally provided with the bottom of the case 11, thereby simplifying the frame structure design of the double-layered battery module 100.
In some examples, the enclosure 11 includes a first set of side plates and a second set of side plates disposed vertically, wherein the first set of side plates includes identical first side plates 161 and second side plates 162, the first side plates 161 and second side plates 162 are disposed opposite, the second set of side plates includes identical third side plates 163 and fourth side plates 164, the first set of side plates and the second set of side plates are identical in height, and the first set of side plates, the second set of side plates, and the second liquid cooling plate 22 enclose the enclosure 11.
In a preferred implementation, the side plate 16 surrounding the box 11 has a larger thickness, the side plate 16 is internally processed into a harmonica pipe structure, the weight of the box 11 can be reduced while the structural strength of the side plate is improved, materials for processing the side plate are saved, and further, the harmonica pipe structure is processed in the side plate 16 to have a certain heat preservation effect.
With further reference to fig. 2, a projection structure 17 is provided on the inner wall of the side plate 16 of the cabinet 11, and the projection structure 17 forms a support beam structure for fixing the first liquid cooling plate 21. Specifically, a first protrusion structure 171 is provided on the first side plate 161, a second protrusion structure 172 is provided on the second side plate 162, one end of the first liquid cooling plate 21 is fixed to the first protrusion structure 171, and the other end of the first liquid cooling plate 21 is fixed to the second protrusion structure 172. By increasing the contact area between the protrusion structure 17 and the first liquid cooling plate 21, the supporting strength of the tank 11 to the first liquid cooling plate 21 is improved.
In a further preferred implementation, the side plate 16 is longitudinally divided into a first portion 165 and a second portion 166, where the second portion 166 is equivalent to the first portion 165 protruding away from the box 11, the protrusion structure 17 is disposed at a transition of the first portion 165 and the second portion 166, one end of the protrusion structure 17 extends toward the inside of the box 11, and the second portion 166 of the side plate 16 is equivalent to the first portion 165 protruding away from the box 11, so that the other end of the protrusion structure 17 extends toward the outside of the box, and further, the contact area between one end of the first liquid cooling plate 21 and the first protrusion structure 171 is sufficiently increased, and meanwhile, the contact area between the other end of the first liquid cooling plate 21 and the second protrusion structure 172 is also sufficiently increased, so that the fixing of the first liquid cooling plate 21 is more stable.
In a further preferred embodiment, the first portion of the first side plate 161, the second portion of the first side plate 161, and the first protrusion structure 171 are integrally formed, and the first portion of the second side plate 162, the second portion of the second side plate 162, and the second protrusion structure 172 are integrally formed, thereby further simplifying the number of internal parts of the battery pack and thus facilitating the improvement of the assembly efficiency of the battery pack.
In a further preferred embodiment, the first liquid cooling plate 21 is detachably connected to the case 11 by bolts, so that maintenance of the first liquid cooling plate 21 is facilitated. With further reference to fig. 3, screw holes 18 are provided in the first liquid cooling plate 21 and the projection 17, and bolts pass through the screw holes 18 to fix the first liquid cooling plate 21 and the case 11.
In a further preferred embodiment, referring to fig. 4, a PTC (Positive Temperature Coefficient) heating plate 40 is further integrated on the first and second liquid cooling plates 21 and 22, the PTC heating plate 40 integrated on the first liquid cooling plate 21 is used for heating the upper battery module, and the PTC heating plate 40 integrated on the second liquid cooling plate 22 is used for heating the lower battery module. Wherein the number of the PTC heating plates 40 integrated on the first liquid cooling plate 21 or the second liquid cooling plate 22 may be one or more, wherein the arrangement of the plurality of PTC heating plates 40 may facilitate the adjustment of heating power, and the number and position of the PTC heating plates 40 integrated on the first liquid cooling plate 21 remain the same as the number and position of the PTC heating plates 40 integrated on the second liquid cooling plate 22, so that the PTC heating plates 40 integrated on the first liquid cooling plate 21 have the same heating effect as the PTC heating plates 40 integrated on the second liquid cooling plate 22.
Example two
The second embodiment of the present application provides a dual-layer liquid cooling system for the dual-layer battery module 100, when simplifying the structure of the dual-layer battery module 100, the temperature uniformity of the dual-layer liquid cooling system is improved, so that the cooling effect of the first liquid cooling plate 21 on the upper-layer battery module is basically the same as the cooling effect of the second liquid cooling plate 22 on the lower-layer battery module, and the uniformity and stability of the temperatures of the upper-layer battery module and the lower-layer battery module of the dual-layer battery module 100 are improved.
Referring to fig. 2 and 5, the double-layered liquid cooling system 200 for the double-layered battery module 100 includes a first liquid cooling plate 21 for exchanging heat with the upper-layered battery module, and a second liquid cooling plate 22 for exchanging heat with the lower-layered battery module.
The double-layer liquid cooling system 200 further comprises a liquid inlet 31 and a liquid outlet 32, the cooling liquid flowing out through the liquid inlet 31 is provided for the first liquid cooling plate 21 and the second liquid cooling plate 22, the reflux liquid flowing out through the first liquid cooling plate 21 and the upper layer battery module through full heat exchange flows out through the liquid outlet 32, and the reflux liquid flowing out through the second liquid cooling plate 22 and the lower layer battery module through full heat exchange also flows out through the liquid outlet 32.
Because only one liquid inlet 31 and one liquid outlet 32 are needed to be arranged in the double-layer battery module 100, the structural design of the double-layer battery module 100 can be fully simplified, and the cooling power of the first liquid cooling plate 21 and the second liquid cooling plate 22 can be adjusted only by controlling the liquid temperature and the flow supply speed of the cooling liquid of the liquid inlet 31, so that the stability of the system is improved.
The dual-layer liquid cooling system 200 further includes a liquid inlet pipe 33 and a liquid outlet pipe 34, wherein the liquid inlet pipe 33 is configured to communicate with an inlet of at least one flow channel of the first liquid cooling plate 21 and an inlet of at least one flow channel of the second liquid cooling plate 22, such that at least a portion of the flow channels of the first liquid cooling plate 21 and at least a portion of the flow channels of the second liquid cooling plate 22 are arranged in parallel, such that the temperature of the cooling liquid between the flow channels of the first liquid cooling plate 21 and the flow channels of the second liquid cooling plate 22 is kept substantially the same. The drain pipe 34 is communicated with the first cooling liquid reflux channel of the first liquid cooling plate 21 and the second cooling liquid reflux channel of the second liquid cooling plate 22, so that the temperature of the reflux liquid of the first liquid cooling plate 21 and the temperature of the reflux liquid of the second liquid cooling plate 22 are kept approximately the same, and further the temperature uniformity between the first liquid cooling plate 21 and the second liquid cooling plate 22 is improved, and the cooling effect of the first liquid cooling plate 21 on the upper-layer battery module is basically the same as the cooling effect of the second liquid cooling plate 22 on the lower-layer battery module.
In a preferred embodiment, the length and width of the flow channels disposed on the first liquid cooling plate 21 are substantially the same as the length and width of the flow channels disposed on the second liquid cooling plate 22, so that the cooling rates of the first liquid cooling plate 21 and the second liquid cooling plate 22 are substantially the same, while the first liquid cooling plate 21 and the second liquid cooling plate 22 share the same liquid inlet 31, and at least a portion of the flow channels of the first liquid cooling plate 21 and at least a portion of the flow channels of the second liquid cooling plate 22 are connected in parallel through the same liquid inlet pipe 33, so that the flow rate of the cooling liquid flowing through the first liquid cooling plate 21 and the volume of the cooling liquid flowing through the second liquid cooling plate 22 remain substantially the same.
Further, the flow channel on the first liquid cooling plate 21 extends in an approximately S shape, so that the flow of the cooling liquid on the first liquid cooling plate 21 is long enough, and the cooling effect of the first liquid cooling plate 21 on the upper layer battery module is improved. Similarly, the flow channel on the second liquid cooling plate 22 extends in an approximately S shape, so that the flow of the cooling liquid on the second liquid cooling plate 22 is long enough, and the cooling effect of the second liquid cooling plate 22 on the lower battery module is improved.
Four flow channels are arranged on the first liquid cooling plate 21, and the outlet of the upper flow channel is communicated with the inlet of the lower two flow channels, wherein the upper flow channel is arranged closer to the liquid inlet 31 relative to the lower flow channel. Similarly, four flow channels are also provided in the second liquid cooling plate 22.
In one embodiment provided in the present application, further referring to fig. 5, the liquid inlet 31 and the liquid outlet 32 are disposed near the first side plate 161 of the box 11, the liquid inlet pipe 33 and the liquid outlet pipe 34 are disposed near the second side plate 162 of the box 11, the second liquid cooling plate 22 includes a first flow channel 221 and a second flow channel 222, wherein an inlet of the first flow channel 221 is communicated with the liquid inlet 31, an outlet of the first flow channel 221 is respectively communicated with the second flow channel 222 and the liquid inlet pipe 33, and the cooling liquid flows into the third flow channel 211 of the first liquid cooling plate 21 through the liquid inlet pipe 33 and flows into the fourth flow channel 212 through the third flow channel 211, wherein the second flow channel 222 of the second liquid cooling plate 22 is connected in parallel with the third flow channel 211 of the first liquid cooling plate 21, so as to promote the temperature balance of the cooling liquid between the first liquid cooling plate 21 and the second liquid cooling plate 22.
The first liquid cooling plate 21 includes a first reflux liquid channel 213, the second liquid cooling plate 22 includes a second reflux liquid channel 223, reflux liquid of the first liquid cooling plate 21 enters the inside of the liquid outlet pipe 34 through the first reflux liquid channel 213, reflux liquid inside the liquid outlet pipe 34 merges with reflux liquid of the second liquid cooling plate 22 to flow into the second reflux liquid channel 223 of the second liquid cooling plate 22, and flows into the liquid outlet 32 through the second reflux liquid channel 223.
In the above-mentioned double-layer liquid cooling system, the cooling liquid circulates in the second liquid cooling plate 22 for a period of time first, then enters the first liquid cooling plate 21, the cooling liquid obtains the reflux liquid after the first liquid cooling plate 21 carries out abundant heat exchange with the upper layer battery module, the reflux liquid of the first liquid cooling plate 21 further passes through drain pipe 34 and sinks into the second reflux liquid passageway 223 of the second liquid cooling plate, is equivalent to bringing a part of heat of the upper layer battery module into the inside of the second liquid cooling plate 22 to cool, can further promote the cooling effect of liquid cooling system to the upper layer battery module.
Further, through the mode, the temperature difference between the cooling liquid at the inlet of the first liquid cooling plate 21 and the reflux liquid at the outlet of the first liquid cooling plate can be effectively reduced, the overall stable uniformity of the first liquid cooling plate 21 is improved, and therefore uniform heat exchange between the first liquid cooling plate 21 and the upper-layer battery module is facilitated, and the stability of the upper-layer battery module is improved.
In still another embodiment provided in the present application, referring to fig. 6, the liquid inlet 31 is disposed on the liquid inlet pipe 33, the liquid outlet 32 is disposed on the liquid outlet pipe 34, the cooling liquid flowing out through the liquid inlet 31 is split to flow to the flow channel of the first liquid cooling plate 21 and the flow channel of the second liquid cooling plate 22, the reflux liquid on the first liquid cooling plate 21 flows into one end of the liquid outlet pipe 34, the reflux liquid on the second liquid cooling plate 22 flows into the other end of the liquid outlet pipe 35 and flows out through the liquid outlet 32, and the arrangement mode of the double-layer liquid cooling system 200 makes the inlet temperature and the outlet temperature of the flow channel of the first liquid cooling plate 21 and the inlet temperature and the outlet temperature of the flow channel of the second liquid cooling plate 22 keep substantially the same, so as to further promote uniformity of inlet temperature and outlet temperature of the flow channel between the first liquid cooling plate 21 and the second liquid cooling plate 22.
Referring to fig. 1 further, the dual-layer battery module 100 further includes a positive electrode interface 41 and a negative electrode interface 42, where the positive electrode interface 41 and the negative electrode interface 42 are respectively disposed on one of the side plates 16 of the case 11 at intervals, the positive electrode interface 41 is in communication with a positive electrode of an external power source or a positive stage of an energy supply device, and the negative electrode interface 42 is in communication with a negative electrode of the external power source or a negative electrode of the energy supply device, where the functional device may be an electric automobile or other devices requiring battery pack power supply.
The double-layered battery module 100 further includes a heating control switch 43, the heating control switch 43 being in communication with the PTC heating plate 40 inside the double-layered battery module 100, the heating control switch 43 being disposed on one of the side plates of the case 11.
The double-layered battery module 100 may further include a service switch 44, the service switch 44 being configured to be openable to facilitate detection and maintenance of an internal failure generated by the double-layered battery module 100, the service switch 44 being provided on one of the side plates 16 of the case 11.
The double-layer battery module 100 further comprises a communication interface 45, and the management module of the battery pack can be accessed through the communication interface 45, so that the working parameters such as electric quantity, temperature and pressure inside the double-layer battery module are timely transmitted to the management module of the battery pack, and the communication interface 45 is arranged on one of the side plates 16 of the box 11.
The foregoing has outlined rather broadly the more detailed description of embodiments of the utility model, wherein the principles and embodiments of the utility model are explained in detail using specific examples, the above examples being provided solely to facilitate the understanding of the method and core concepts of the utility model; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present utility model, the present description should not be construed as limiting the present utility model.
Claims (10)
1. A battery pack, comprising:
the box body comprises an open inner cavity, the box cover is connected to the open part of the box body, and the box body and the box cover are enclosed to form a containing chamber;
the battery module comprises an upper layer battery module and a lower layer battery module;
the first liquid cooling plate is arranged in the box body, and the upper layer battery module is arranged on the first liquid cooling plate;
the second liquid cooling plate is arranged at the bottom of the box body, and the lower battery module is arranged on the second liquid cooling plate;
the box body further comprises a first side plate and a second side plate which are oppositely arranged, the first side plate is provided with a first protruding structure, the second side plate is provided with a second protruding structure, one end of the first liquid cooling plate is fixed on the first protruding structure, and the other end of the first liquid cooling plate is fixed on the second protruding structure.
2. The battery pack according to claim 1, wherein the first side plate and the second side plate each include a first portion and a second portion connected, the second portion being provided so as to protrude away from the case with respect to the first portion, and the first protrusion structure or the second protrusion structure being provided between the first portion and the second portion.
3. The battery pack of claim 2, wherein the first portion of the first side plate, the second portion of the first side plate, and the first protrusion are integrally formed, and the first portion of the second side plate, the second portion of the second side plate, and the second protrusion are integrally formed.
4. The battery pack of claim 1, wherein the first liquid cooling plate is secured to the housing by bolts.
5. The battery pack of claim 1, further comprising a PTC heater plate integrated on the first liquid cooling plate and/or the PTC heater plate integrated on the second liquid cooling plate.
6. The battery pack of any one of claims 1-5, wherein the battery pack further comprises:
the liquid inlet is used for supplying the flowing-in cooling liquid to the first liquid cooling plate and the second liquid cooling plate, and the liquid outlet is used for allowing the flowing-out liquid of the first liquid cooling plate and the second liquid flow plate, wherein the liquid inlet and the liquid outlet are positioned on the same side;
the liquid inlet pipe is communicated with the first liquid cooling plate and the second liquid cooling plate, the liquid outlet pipe is communicated with the first liquid cooling plate and the second liquid cooling plate, and the liquid inlet pipe is located away from the liquid inlet and the other side of the liquid outlet.
7. The battery pack of claim 6, wherein the liquid inlet and the liquid outlet are disposed on a first side of the second liquid cooling plate, the liquid inlet tube and the liquid outlet tube are disposed on a second side of the second liquid cooling plate, and the first side and the second side are disposed opposite each other.
8. The battery pack of claim 6, wherein the first liquid cooling plate comprises a first backflow liquid channel, the second liquid cooling plate comprises a second backflow liquid channel, the inlet of the liquid outlet pipe is in communication with the outlet of the first backflow liquid channel, the outlet of the liquid outlet pipe is in communication with the inlet of the second backflow liquid channel, and the outlet of the second backflow liquid channel is in communication with the liquid outlet.
9. The battery pack of any one of claims 1-5, wherein the length of the flow channel of the first liquid cooling plate is the same as the length of the flow channel of the second liquid cooling plate.
10. The battery pack of any one of claims 1-5, wherein the flow channel of the first liquid cooling plate extends in an S-shape or the flow channel of the second liquid cooling plate extends in an S-shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322319071.5U CN220627993U (en) | 2023-08-28 | 2023-08-28 | Battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322319071.5U CN220627993U (en) | 2023-08-28 | 2023-08-28 | Battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220627993U true CN220627993U (en) | 2024-03-19 |
Family
ID=90211559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322319071.5U Active CN220627993U (en) | 2023-08-28 | 2023-08-28 | Battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220627993U (en) |
-
2023
- 2023-08-28 CN CN202322319071.5U patent/CN220627993U/en active Active
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