Energy storage battery module liquid cooling plate
By optimizing the design of the Z-shaped flow channel, guide plate, guide block, and manifold, the problem of excessive temperature difference in the battery pack caused by unreasonable internal flow channel design of the liquid cooling plate was solved, achieving more efficient heat dissipation and more uniform temperature control, extending battery life and reducing energy consumption.
Patent Information
- Application Number
- CN202423121614.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-17
AI Technical Summary
The existing liquid cooling plate has an unreasonable internal flow channel design, which causes the coolant in the internal flow channel near the middle of the battery pack to heat up quickly, resulting in excessive temperature differences in different areas inside the battery pack, affecting the lifespan of the cells and the uniformity of heat dissipation.
The design incorporates multiple cooling channels in a U-shape, with guide plates and guide blocks to increase the contact area and contact time between the coolant and the liquid cooling plate. A manifold is also installed at the outlet to control the flow rate and optimize flow uniformity and heat exchange.
It improves cooling efficiency and heat dissipation uniformity, reduces the internal temperature difference of the battery pack, extends battery life, and reduces energy consumption.
Smart Images
Figure CN223598810U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to energy storage battery cooling technical field, concretely relates to a kind of energy storage battery module liquid cooling plate. BACKGROUND
[0002] In recent years, with the rapid development of energy storage industry, for the increasingly mature energy storage peak shaving and frequency modulation, the charge-discharge power, stability and service life of energy storage system are required higher and higher, including the cooling of energy storage battery, and the mainstream cooling technology is liquid cooling.
[0003] The liquid cooling plate on the market has multiple inner flow channels arranged side by side, and each inner flow channel is not communicated with each other. However, the inner flow channel of the existing liquid cooling plate is not reasonably designed, the cooling liquid in the inner flow channel near the middle of the battery pack has a faster temperature rising speed, resulting in different temperatures of the inner flow channels at different positions, and the cooling liquid cannot uniformly dissipate heat for the battery cells during flowing, which leads to a large temperature difference between different regions inside the battery pack, and thus the battery pack is prone to thermal runaway and other problems, reducing the service life of the battery cells. SUMMARY
[0004] In view of the deficiencies of the prior art, the utility model provides an energy storage battery module liquid cooling plate to solve the above problems.
[0005] The utility model provides the following technical scheme:
[0006] An energy storage battery module liquid cooling plate includes an inlet, an outlet, and multiple cooling flow channels between the inlet and the outlet. Each cooling flow channel is composed of multiple U-shaped channels. A first flow guide plate is arranged at the inlet to guide the cooling liquid at the inlet to flow to the first main flow channels on both sides. The cooling flow channels also include two second main flow channels in the middle of the U-shaped channels. A second flow guide plate is arranged between the first main flow channels and the second main flow channels.
[0007] Further, a first bus bar and a first bus plate are arranged at the outlet to guide the cooling liquid in the first main flow channels on both sides to flow to the outlet.
[0008] Further, multiple circular flow guide blocks are arranged at the inlet and the outlet to control the flow rate of the cooling liquid when entering and exiting the first flow channels.
[0009] Further, the first flow guide plate is distributed in a figure-eight shape with the inlet as the center; the first bus bar is composed of multiple square blocks; and the first bus plate is distributed in a figure-eight shape with the outlet as the center, and is connected by an arc in the middle.
[0010] The utility model has the following beneficial technical effects:
[0011] The liquid cooling plate has a plurality of flow channels composed of a U-shaped channel, the cooling efficiency is ensured by increasing the number of flow channels, the flow guide plates and the flow guide blocks are arranged in the main flow channel, the contact area and the contact time of the cooling liquid and the liquid cooling plate are increased, and therefore the heat dissipation efficiency is improved, the liquid flow uniformity is improved, the heat dissipation uniformity is better, and the pressure-bearing strength of the liquid cooling plate is improved.
[0012] The liquid cooling plate is matched with the middle main flow channel through the left and right side main flow channels, the heat exchange effect of the cooling liquid and the battery cell is improved, the temperature consistency of the battery cell is improved, and therefore the technical problem that the liquid cooling plate cannot uniformly dissipate heat for the battery cell in the related art due to the flowing process is solved, and the temperature difference of different regions in the battery pack is excessively large.
[0013] The liquid cooling plate is provided with a plurality of bus blocks at the liquid outlet, the flow guide blocks and the bus plates are used in cooperation, the flow rate of the cooling liquid is reduced during bus flow, the impact on the liquid outlet during bus flow is relieved, the generation of the vortex flow and the stagnant flow is reduced, the flow resistance is reduced, the energy efficiency of the liquid cooling system is improved, and the energy consumption is reduced. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is a flow channel structure schematic view of the energy storage battery module.
[0015] The reference signs in the drawing are:
[0016] 1, liquid inlet; 2, first flow guide plate; 3, second flow guide plate; 4, first bus plate; 5, first bus block; 6, liquid outlet; 7, flow guide block. DETAILED DESCRIPTION
[0017] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Apparently, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.
[0018] EMBODIMENT
[0019] The utility model provides a kind of energy storage battery module liquid cooling plate, including liquid inlet 1, liquid outlet 6, be equipped with multiple cooling flow channels between the liquid inlet 1 and the liquid outlet 6, each cooling flow channel is composed of multiple U-shaped, be equipped with first flow guide plate 2 at liquid inlet 1, so that the cooling liquid flow at liquid inlet 1 is directed to the first main flow channel of left and right sides, the cooling flow channel also includes two second main flow channels in the middle, second flow guide plate 3 is equipped in the U-shaped of the first main flow channel and the second main flow channel middle. Multiple U-shaped flow channel can increase the contact area and contact time of cooling liquid and liquid cooling plate, to improve heat dissipation efficiency, when cooling liquid flows in flow channel, it can more fully absorb the heat generated by battery, so that battery temperature is more evenly reduced, help to prolong the service life of battery.
[0020] In the embodiment, first flow block 5 and first flow plate 4 are provided at the liquid outlet 6, which are used to guide the cooling liquid flow of the first main flow channel on the left and right sides to the liquid outlet 6.
[0021] In the embodiment, a plurality of circular flow blocks 7 are also provided at the liquid inlet 1 and the liquid outlet 6 to control the flow rate of the cooling liquid entering and exiting the first flow channel. The flow guide plate and the flow block are arranged in the main flow channel to control the flow rate of the liquid, so as to improve the uniformity of the liquid flow and the heat dissipation effect, and help the liquid cooling plate to improve the pressure-bearing strength.
[0022] In the embodiment, as shown in Figure 1 The first flow guide plate 2 is distributed in a figure-eight shape with the liquid inlet 1 as the center; the first flow block 5 is composed of a plurality of square blocks; the first flow plate 4 is distributed in a figure-eight shape with the liquid outlet 6 as the center, and is connected by an arc-shaped transition in the middle.
[0023] The liquid cooling plate can improve the heat exchange effect of the cooling liquid and the battery cell by cooperating the main flow channels on the left and right sides with the middle main flow channel, thereby solving the technical problem that the liquid cooling plate cannot uniformly dissipate heat from the battery cell during the flow process in the related art, resulting in a large temperature difference between different regions inside the battery pack.
[0024] The above-described embodiments only express the specific implementation of the utility model, and the description is more specific and detailed, but it cannot be understood as a limitation on the scope of the utility model patent. It should be noted that, for ordinary skilled persons in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, which are within the protection scope of the utility model.
Claims
1. An energy storage battery module liquid cooling plate, characterized in that, The cooling device comprises an inlet and an outlet, a plurality of cooling flow channels are arranged between the inlet and the outlet, each cooling flow channel is composed of a plurality of Chinese characters, a first flow guide plate is arranged at the inlet, so that the cooling liquid at the inlet flows to the left and right first main flow channels, the cooling flow channel further comprises two second main flow channels, and a second flow guide plate is arranged in the middle of the Chinese character of the first main flow channel and the second main flow channel.
2. The liquid cooling plate for energy storage battery module according to claim 1, wherein, A first confluence block and a first confluence plate are arranged at the outlet, and the first confluence block and the first confluence plate are used for guiding the cooling liquid of the left and right first main flow channels to flow to the outlet.
3. The liquid cooling plate for energy storage battery module according to claim 1, wherein, A plurality of circular flow guide blocks are further arranged at the inlet and the outlet, and are used for controlling the flow rate of the cooling liquid when entering and leaving the first main flow channel.
4. The liquid cooling plate for energy storage battery module according to claim 1, wherein, The first flow guide plate is distributed in an eight-character shape with the inlet as the center.
5. The liquid cooling plate for energy storage battery module according to claim 2, wherein, The first confluence block is composed of a plurality of square blocks.
6. The liquid cooling plate for energy storage battery module according to claim 5, wherein, The first confluence plate is distributed in an eight-character shape with the outlet as the center, and is connected by an arc-shaped transition in the middle.