A battery pack temperature control system and vehicle
Patent Information
- Application Number
- CN202522595170.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-04
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-04
Smart Images
Figure CN224934811U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of battery technology, and in particular to a battery pack temperature control system and a vehicle. Background Technology
[0002] With technological advancements and the booming development of the new energy industry, lithium-ion batteries, as high-energy-density energy storage devices, have been widely used in electric vehicles, energy storage power stations, and new energy transportation. In the electric vehicle sector, the thermal management of battery modules directly affects the vehicle's range, charging efficiency, and driving safety.
[0003] With the widespread adoption of high-rate fast charging technology, batteries undergo intense charging and discharging in a short period, leading to a rapid rise in internal temperature within the battery cells. If heat dissipation is not timely, this can easily trigger thermal runaway. Furthermore, battery modules need to maintain temperature consistency during long-term operation to avoid problems such as capacity degradation and shortened lifespan caused by excessive temperature differences between individual cells.
[0004] In existing vehicles, while liquid cooling plates in the thermal management system can achieve basic heat dissipation, their structural design may result in uneven coverage of the cooling medium on the cell surface. Especially under high-power conditions, the heat dissipation efficiency at the top, sides, and gaps between the cells is significantly lower than at the bottom, leading to localized hot spots. Furthermore, during vehicle operation, the battery pack must withstand dynamic loads such as vibration and impact, placing higher demands on the structural stability of the thermal management system. Utility Model Content
[0005] This application provides a battery pack temperature control system and a vehicle. By setting dual-inlet main pipelines on both sides of the battery box and cooperating with jet nozzle assemblies, cooling fluid enters from the dual-inlet main pipelines on both sides and then enters the gaps between the individual battery cells in the form of jets through the nozzle assembly. This achieves efficient immersion cooling of the battery cells, thereby reducing the temperature difference between the cells, improving the temperature uniformity of the battery module, and improving the overall lifespan of the battery cells and the safety of the entire vehicle.
[0006] The first aspect of this application provides a battery pack temperature control system, including:
[0007] The battery housing contains battery modules, each containing several individual battery cells.
[0008] The dual-inlet main pipeline is located on both sides of the battery box along the first direction, and the dual-inlet main pipeline is connected to the inside of the battery box respectively.
[0009] The jet nozzle assembly consists of several jet nozzle assemblies connected to the dual-inlet main pipeline, with the jet direction of each jet nozzle assembly facing the reserved gap between the individual battery cells.
[0010] The battery pack temperature control system provided in the first aspect of this application includes a battery housing, dual-inlet main pipelines, and jet nozzle assemblies. The battery housing houses a battery module, which comprises several individual battery cells. The dual-inlet main pipelines are located on both sides of the battery housing along a first direction and are connected to the interior of the battery housing. Several jet nozzle assemblies are connected to the dual-inlet main pipelines, and the spray direction of each jet nozzle assembly is directed towards the pre-reserved gaps between the individual battery cells. Thus, the battery pack temperature control system provided in this application, by providing dual-inlet main pipelines on both sides of the battery housing and cooperating with the jet nozzle assemblies, allows cooling fluid to enter from the dual-inlet main pipelines on both sides, pass through the nozzle assemblies, and enter the gaps between the individual battery cells in the form of jets. This achieves efficient immersion cooling of the cells, thereby reducing the temperature difference between the cells, improving the temperature uniformity of the battery module, increasing the overall lifespan of the cells, and enhancing the safety of the entire vehicle.
[0011] In one possible implementation, the dual-inlet main pipeline includes a first inlet pipeline and a second inlet pipeline, which are located on opposite sides of the battery housing along a first direction.
[0012] The first inlet pipe and the second inlet pipe are respectively connected to several jet nozzle assemblies.
[0013] In one possible implementation, the first inlet pipeline includes a first main pipeline and a first conduit, wherein the first main pipeline is connected to the first conduit.
[0014] The first main pipeline extends along the first direction and is disposed in the battery box, the second pipeline extends along the second direction and is connected to a plurality of jet nozzle assemblies.
[0015] In one possible implementation, the second inlet pipe includes a second main pipe and a second pipe, wherein the second main pipe is connected to the second pipe;
[0016] The second main pipeline extends along the first direction and is disposed in the battery box, and the second pipeline extends along the second direction and is connected to several jet nozzle assemblies.
[0017] In one possible implementation, the jet nozzle assembly includes: a branch pipe and a jet nozzle;
[0018] One end of the branch pipe is connected to the dual-inlet main pipeline, and the other end of the branch pipe is connected to the jet nozzle. The jet nozzle's spray end is aligned with the reserved gap between the individual battery cells.
[0019] In one possible implementation, it further includes: an outlet pipe, the outlet pipe being disposed on one side of the battery housing along the second direction;
[0020] The outlet pipe is used to discharge the cooling fluid that flows in from the dual-inlet main pipe and converges in the middle of the battery box.
[0021] In one possible implementation, it further includes: spacers disposed between individual cells to provide buffering and positioning;
[0022] The separators are arranged along the length of the large surface of the battery cell to allow the cooling fluid to flow between the large surfaces of the battery cell.
[0023] In one possible implementation, it further includes: an end plate, which is disposed between the battery module and the battery housing, and a spacer is disposed between the battery module and the end plate.
[0024] In one possible implementation, it further includes: a battery management system and a battery disconnection unit;
[0025] The battery management system and battery disconnection unit are located on one side of the battery housing along the second direction.
[0026] A second aspect of this application provides a vehicle including the aforementioned battery pack temperature control system.
[0027] It should be understood that the second aspect of this application corresponds to the technical solution of the first aspect of this application, and the beneficial effects achieved by each aspect and the corresponding feasible implementation are similar, and will not be repeated here.
[0028] In addition to the technical problems solved by this application, the technical features constituting the technical solution, and the beneficial effects brought about by the technical features of these technical solutions as described above, other technical problems that can be solved by the battery pack temperature control system and vehicle provided by this application, other technical features included in the technical solution, and the beneficial effects brought about by these technical features will be further explained in detail in the specific embodiments. Attached Figure Description
[0029] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments of this application or the prior art will be briefly introduced below. Obviously, the drawings described below are only a part of the embodiments of this application. These drawings and text descriptions are not intended to limit the scope of the concept of this application in any way, but to illustrate the concept of this application to those skilled in the art by referring to specific embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0030] Figure 1 A schematic diagram of the overall structure and internal cooling fluid volume of the battery pack temperature control system provided in the embodiments of this application;
[0031] Figure 2This is a schematic diagram of the battery pack temperature control system provided in an embodiment of this application;
[0032] Figure 3 A partially enlarged schematic diagram of the second inlet pipe of the battery pack temperature control system provided in an embodiment of this application;
[0033] Figure 4 This is a schematic diagram of the flow path of the cooling fluid in the battery pack temperature control system provided in this application embodiment.
[0034] Explanation of reference numerals in the attached figures:
[0035] 100-Battery pack temperature control system;
[0036] 200 - Battery housing; 210 - Battery module; 220 - Individual battery cell; 221 - Reserved gap;
[0037] 300 - Dual-inlet main pipeline; 310 - First inlet pipeline; 311 - First main pipeline; 312 - First-stage pipeline; 320 - Second inlet pipeline; 321 - Second main pipeline; 322 - Second-stage pipeline;
[0038] 400 - Jet nozzle assembly; 410 - Branch pipe; 420 - Jet nozzle;
[0039] 500 - Outlet Pipeline;
[0040] 600 - Spacer; 610 - Epoxy board;
[0041] 700-Endplate;
[0042] 800-Battery Management System;
[0043] 900 - Battery disconnect unit. Detailed Implementation
[0044] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.
[0045] As described in the background section, while liquid cooling plates in the thermal management system of existing vehicles can achieve basic heat dissipation, their structural design may result in uneven coverage of the cooling medium on the cell surface. Especially under high-power conditions, the heat dissipation efficiency at the top, sides, and gaps between the cells is significantly lower than at the bottom, leading to localized hot spots. Furthermore, during vehicle operation, the battery pack must withstand dynamic loads such as vibration and impact, placing higher demands on the structural stability of the thermal management system.
[0046] To address the aforementioned technical problems, the first aspect of this application provides a battery pack temperature control system. This system includes a battery housing, dual-inlet main pipelines, and jet nozzle assemblies. The battery housing houses a battery module, which comprises several individual battery cells. The dual-inlet main pipelines are located on both sides of the battery housing along a first direction and are connected to the interior of the battery housing. Several jet nozzle assemblies are connected to the dual-inlet main pipelines, and the spray direction of each jet nozzle assembly is directed towards the pre-reserved gaps between the individual battery cells. Thus, the battery pack temperature control system provided in this application, by providing dual-inlet main pipelines on both sides of the battery housing and cooperating with the jet nozzle assemblies, allows cooling fluid to enter from the dual-inlet main pipelines on both sides, pass through the nozzle assemblies, and enter the gaps between the individual battery cells in the form of jets. This achieves efficient immersion cooling of the cells, thereby reducing the temperature difference between the cells, improving the temperature uniformity of the battery module, increasing the overall lifespan of the cells, and enhancing the safety of the entire vehicle.
[0047] A second aspect of this application provides a vehicle. The vehicle includes the aforementioned battery pack temperature control system.
[0048] To make the above-mentioned objectives, features, and advantages of the embodiments of this application more apparent and understandable, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0049] This application provides a battery pack temperature control system and a vehicle. By providing dual-inlet main pipelines on both sides of the battery box, and cooperating with jet nozzle assemblies, cooling fluid enters from the dual-inlet main pipelines on both sides, and then enters the gaps between the individual battery cells in the form of a jet through the nozzle assembly. This achieves efficient immersion cooling of the cells, thereby reducing the temperature difference between the cells, improving the temperature uniformity of the battery module, and increasing the overall lifespan of the cells and the safety of the vehicle. The specific structure of the battery pack temperature control system and the vehicle provided in this application embodiment will be described below with reference to the accompanying drawings.
[0050] refer to Figure 1 as well as Figure 2This application provides a battery pack temperature control system 100 in a first aspect. The battery pack temperature control system 100 may include a battery housing 200, a dual-inlet main pipeline 300, and a jet nozzle assembly 400. In this application embodiment, a battery module 210 may be disposed inside the battery housing 200, and the battery module 210 may have individual battery cells 220. In one possible implementation, the number of battery modules 210, individual battery cells 220, and jet nozzle assemblies 400 may all be multiple, and this application embodiment does not impose any limitation on this.
[0051] Continue to refer to Figure 2 Based on the above embodiments, the dual-inlet main pipeline 300 can be disposed on both sides of the battery box 200 along the first direction, and the dual-inlet main pipeline 300 can communicate with the interior of the battery box 200 respectively. Figure 3 As shown, several jet nozzle assemblies 400 can be connected to the dual-inlet main pipeline 300, and the jet direction of each jet nozzle assembly 400 can be directed toward the reserved gap 221 between the battery cells 220.
[0052] Thus, the battery pack temperature control system 100 provided in this application embodiment provides dual-inlet main pipelines 300 on both sides of the battery box 200, which cooperate with the jet nozzle assembly 400. This allows the cooling fluid to enter from the dual-inlet main pipelines 300 on both sides, and then enter the gaps between the individual battery cells 220 in the form of a jet through the nozzle assembly. This achieves efficient immersion cooling of the battery cells, thereby reducing the temperature difference between the battery cells, improving the temperature uniformity of the battery module 210, and improving the overall service life of the battery cells and the safety of the entire vehicle.
[0053] It should be noted that, for ease of description, in this embodiment, the first direction can be the width direction of the battery housing 200, i.e. Figure 2 The x-direction. The second direction can be the length direction of the battery box (200), i.e. Figure 2 The y-direction. The third direction can be the height direction of the battery box (200), i.e. Figure 2 The z-direction in the equation.
[0054] Continue to refer to Figure 2 Based on the above embodiments, in one possible implementation, the battery housing 200, battery module 210, and battery cell 220 can all be rectangular structures, and this application embodiment is not limited thereto. In this application embodiment, the battery housing 200 may have an internal cavity, and several battery modules 210 may be arranged in an array within the internal cavity.
[0055] Continue to refer to Figure 2Based on the above embodiments, the dual-inlet main pipeline 300 may further include a first inlet pipeline 310 and a second inlet pipeline 320. The first inlet pipeline 310 and the second inlet pipeline 320 may be located on opposite sides of the battery housing 200 along a first direction. In this embodiment, the first inlet pipeline 310 and the second inlet pipeline 320 may be connected to a plurality of jet nozzle assemblies 400.
[0056] In this embodiment, it is understood that by providing a first inlet pipe 310 and a second inlet pipe 320 on both sides of the battery housing 200, symmetrical and uniform distribution of cooling fluid is achieved. Simultaneous injection of cooling fluid from both sides of the battery housing 200 avoids the problems of uneven cooling and excessive pressure drop inside the housing caused by a single-sided inlet.
[0057] refer to Figure 3 as well as Figure 4 Based on the above embodiments, in one possible implementation, the first inlet pipe 310 may include a first main pipe 311 and a first conduit 312, with the first main pipe 311 connected to the first conduit 312. In this embodiment, one end of the first main pipe 311 extends out of the battery housing 200, and the other end of the first main pipe 311 is connected to the first conduit 312. The first main pipe 311 may extend along a first direction within the battery housing 200, while the first conduit 312 may extend along a second direction and is connected to a plurality of jet nozzle assemblies 400.
[0058] Continue to refer to Figure 3 Based on the above embodiments, in one possible implementation, the second inlet pipe 320 may include a second main pipe 321 and a second pipe 322, with the second main pipe 321 connected to the second pipe 322. In this embodiment, one end of the second main pipe 321 extends out of the battery housing 200, and the other end of the second main pipe 321 is connected to the second pipe 322. The second main pipe 321 may extend along a first direction within the battery housing 200, while the second pipe 322 may extend along a second direction and is connected to a plurality of jet nozzle assemblies 400.
[0059] In the embodiments of this application, it is understood that the main pipeline is configured to transport cooling fluid, while the secondary pipeline is configured to precisely deliver the cooling fluid to each jet nozzle assembly 400. This reduces flow resistance and ensures that the inlet pressure of each jet nozzle assembly 400 is relatively balanced.
[0060] Continue to refer to Figure 3 as well as Figure 4Based on the above embodiments, the jet nozzle assembly 400 may include a branch pipe 410 and a jet nozzle 420. In one possible implementation, the number of branch pipes 410 and jet nozzles 420 may be several. For example, the number of branch pipes 410 and jet nozzles 420 may be 17, but this application embodiment is not limited thereto.
[0061] Continue to refer to Figure 3 Based on the above embodiments, one end of the branch pipe 410 can be connected to the dual-inlet main pipeline 300, and the other end of the branch pipe 410 can be connected to the jet nozzle 420. The spray end of the jet nozzle 420 can be aligned with the reserved gap 221 between the battery cells 220.
[0062] In this embodiment, it is understood that the branch pipe 410 and the jet nozzle 420 can convert the pressure energy of the cooling fluid into kinetic energy, forming a high-speed jet that directly impacts the reserved gap 221 between the battery cells 220. The heat exchange efficiency of this direct impact is much higher than that of natural convection, and it can quickly remove the heat generated on the large surface of the battery cell 220.
[0063] Continue to refer to Figure 4 Based on the above embodiments, the battery pack temperature control system 100 may further include an outlet pipe 500. The outlet pipe 500 may be located on one side of the battery housing 200 along the second direction. In this embodiment, it is understood that the outlet pipe 500 can be used to discharge cooling fluid that flows into the dual-inlet main pipe 300 and converges in the middle of the battery housing 200.
[0064] In this embodiment, it is understood that the outlet pipe 500 forms a complete and efficient cooling flow channel. Thus, after the cooling fluid flows in from both sides of the battery housing 200, it converges in the central region of the battery housing 200 and then discharges together from the outlet pipe 500. This avoids cooling dead zones, ensures that hot fluid is carried away in a timely manner, and results in high overall heat exchange efficiency.
[0065] In one possible implementation, for example, a modified hydrocarbon fluid with high thermal conductivity, low viscosity, and high flash point can be used as the cooling fluid; however, this embodiment is not limited thereto. It is understood that the modified hydrocarbon cooling fluid can achieve efficient and reliable cooling of the battery cell 220.
[0066] In this embodiment, the cooling fluid enters the battery housing 200 through the dual-inlet main pipelines 300 on both sides, then enters the reserved gaps 221 between the individual battery cells 220 in the form of a jet through the nozzle assembly, flowing towards the center of the battery housing 200. Upon reaching the center of the battery housing 200, the cooling fluids on both sides converge and finally flow out from the outlet pipeline 500 at the bottom center, completing one immersion cooling flow cycle of the cooling fluid and achieving efficient full immersion cooling of the individual battery cells 220.
[0067] Continue to refer to Figure 2 Based on the above embodiments, the battery pack temperature control system 100 may further include a separator 600. The separator 600 may be disposed between the individual battery cells 220. In this embodiment, it is understood that the separator 600 can be used to provide cushioning and positioning.
[0068] In one possible implementation, the spacer 600 can be arranged along the length of the large surface of the battery cell 220, thereby allowing cooling fluid to flow between the large surface (i.e., the largest heating surface) of the battery cell 220. Exemplarily, the spacer 600 can be a foam spacer 600, and this embodiment of the application is not limited thereto.
[0069] In this embodiment of the application, for example, the length of the separator 600 can be the same as the large surface length of the battery cell 220, the width of the separator 600 can be 10mm, and the thickness of the separator 600 can be 4mm.
[0070] Understandably, the spacer 600 ensures that the cooling fluid ejected from the jet nozzle 420 flows smoothly between the large surfaces of the battery cell 220, maximizing the heat exchange area. It also provides cushioning and positioning for the battery cell 220, preventing vibration and compression, providing heat insulation, flame retardancy, and improving the structural stability and safety of the battery module 210.
[0071] Continue to refer to Figure 2 Based on the above embodiments, the battery pack temperature control system 100 may further include an epoxy board 610. The epoxy board 610 may be disposed between battery modules 210 and has functions such as electrical insulation, structural support and positioning, and thermal runaway prevention.
[0072] Continue to refer to Figure 2Based on the above embodiments, the battery pack temperature control system 100 may further include an end plate 700. The end plate 700 may be disposed between the battery module 210 and the battery housing 200, and has functions such as providing structural support, fixation, and electrical insulation. In one possible implementation, a spacer 600 may be disposed between the battery module 210 and the end plate 700. It is understood that the end plate 700 and the spacer 600 cooperate to compactly fix the entire battery module 210 within the battery housing 200.
[0073] Continue to refer to Figure 2 Based on the above embodiments, the battery pack temperature control system 100 may further include a battery management system 800 and a battery disconnection unit 900. Both the battery management system 800 and the battery disconnection unit 900 may be located on one side of the battery housing 200 along the second direction. In this embodiment, the battery management system 800 and the battery disconnection unit 900 may be located on one side of the battery housing 200 along the second direction, while the outlet pipe 500 may be located on the other side of the battery housing 200 along the second direction. This embodiment does not impose any limitations on these aspects.
[0074] Understandably, the battery management system 800 is used for battery status monitoring, protection, diagnosis, and maintenance, while the battery disconnection unit 900 is used to safely connect and disconnect the battery pack from the external high-voltage system. The battery management system 800 and the battery disconnection unit 900 are integrated on one side of the battery housing 200, achieving functional partitioning and facilitating wiring, maintenance, and repair.
[0075] This application provides a vehicle (not shown in the figures) in a second aspect. The vehicle may include the aforementioned battery pack temperature control system 100.
[0076] In this embodiment, the battery pack temperature control system 100 provided in this application provides dual-inlet main pipelines 300 on both sides of the battery box 200, which cooperate with the jet nozzle assembly 400. This allows the cooling fluid to enter from the dual-inlet main pipelines 300 on both sides and then enter the gaps between the individual battery cells 220 in the form of a jet through the nozzle assembly. This achieves efficient immersion cooling of the battery cells, thereby reducing the temperature difference between the battery cells, improving the temperature uniformity of the battery module 210, and improving the overall service life of the battery cells and the safety of the entire vehicle.
[0077] The various embodiments or implementation methods described in this specification are presented in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.
[0078] It should be noted that phrases such as "in specific implementations," "in some embodiments," "in this embodiment," and "exemplarily" in the specification indicate that the described embodiments may include specific features, structures, or characteristics, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.
[0079] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part by context, the term "one or more" as used in the text can be used to describe any feature, structure, or characteristic of the singular meaning, or a combination of features, structures, or characteristics of the plural meaning. Similarly, at least in part by context, terms such as "a" or "the" can also be understood to convey either singular or plural usage.
[0080] It should be readily understood that “on,” “above,” and “on top of” in this disclosure should be interpreted in the broadest manner, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on something” but also “on something” without an intermediate feature or layer therebetween (i.e., directly on something).
[0081] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.
[0082] Finally, it should be noted that other embodiments of this application will readily conceive of by those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein, and is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and alterations may be made without departing from its scope. The scope of this application is limited only by the appended claims.
Claims
1. A battery pack temperature control system, characterized in that, include: A battery housing (200) is provided inside the battery housing (200), and the battery module (210) has a plurality of individual battery cells (220). A dual-inlet main pipeline (300) is provided on both sides of the battery box (200) along the first direction, and the dual-inlet main pipeline (300) is respectively connected to the inside of the battery box (200); A jet nozzle assembly (400) is provided, wherein several jet nozzle assemblies (400) are connected to the dual inlet main pipeline (300), and the jet direction of each jet nozzle assembly (400) is directed toward the reserved gap (221) between the battery cells (220).
2. The battery pack temperature control system according to claim 1, characterized in that, The dual-inlet main pipeline (300) includes a first inlet pipeline (310) and a second inlet pipeline (320), wherein the first inlet pipeline (310) and the second inlet pipeline (320) are respectively located on both sides of the battery box (200) along the first direction; The first inlet pipe (310) and the second inlet pipe (320) are respectively connected to a plurality of jet nozzle assemblies (400).
3. The battery pack temperature control system according to claim 2, characterized in that, The first inlet pipe (310) includes a first main pipe (311) and a first secondary pipe (312), wherein the first main pipe (311) is connected to the first secondary pipe (312); The first main pipeline (311) extends along the first direction and is disposed in the battery box (200), the first pipeline (312) extends along the second direction, and the first pipeline (312) is connected to a plurality of jet nozzle assemblies (400).
4. The battery pack temperature control system according to claim 3, characterized in that, The second inlet pipe (320) includes a second main pipe (321) and a second pipe (322), wherein the second main pipe (321) is connected to the second pipe (322); The second main pipeline (321) extends along the first direction and is disposed in the battery box (200), the second pipeline (322) extends along the second direction, and the second pipeline (322) is connected to a plurality of the jet nozzle assemblies (400).
5. The battery pack temperature control system according to claim 4, characterized in that, The jet nozzle assembly (400) includes: a branch pipe (410) and a jet nozzle (420). One end of the branch pipe (410) is connected to the dual-inlet main pipeline (300), and the other end of the branch pipe (410) is connected to the jet nozzle (420). The jet nozzle (420) is aligned with the reserved gap (221) between the battery cells (220).
6. The battery pack temperature control system according to claim 5, characterized in that, Also includes: An outlet pipe (500) is provided on one side of the battery housing (200) along the second direction; The outlet pipe (500) is used to discharge the cooling fluid that flows in from the dual inlet main pipe (300) and converges in the middle of the battery housing (200).
7. The battery pack temperature control system according to any one of claims 1-6, characterized in that, Also includes: A spacer (600) is disposed between the individual cells (220) to provide buffering and positioning; The separator (600) is arranged along the length of the large surface of the battery cell (220) so that cooling fluid flows between the large surfaces of the battery cell (220).
8. The battery pack temperature control system according to claim 7, characterized in that, Also includes: An end plate (700) is disposed between the battery module (210) and the battery housing (200), and a spacer (600) is disposed between the battery module (210) and the end plate (700).
9. The battery pack temperature control system according to any one of claims 3-6, characterized in that, Also includes: Battery management system (800) and battery disconnection unit (900); The battery management system (800) and the battery disconnection unit (900) are disposed on one side of the battery housing (200) along the second direction.
10. A vehicle, characterized in that, Includes the battery pack temperature control system (100) as described in any one of claims 1-9 above.