Novel parallel water cooling control system

By adding control relays and temperature acquisition sensors to the parallel water-cooling control system, the problems of high charge/discharge rates and uneven water cooling in hybrid battery packs are solved, achieving uniform cooling of the internal temperature of the battery pack and improving cooling efficiency.

CN224096767UActive Publication Date: 2026-04-07WUHU CHURUI INTELLIGENT TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-08
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Hybrid battery packs generate significant heat due to their high charge/discharge rates, and the water cooling system suffers from uneven cooling due to inconsistencies between the length of the water pipes and the position of the battery pack.

Method used

A parallel water-cooling control system is adopted. By adding a control relay at the water inlet of the parallel circuit, the control relay is controlled by the water-cooling control system. The relay is closed when the temperature is lower than a certain value of other battery packs. The water-cooling circuit is reopened after the temperature is consistent. Temperature equalization is achieved in combination with the compressor and temperature acquisition sensor.

Benefits of technology

It effectively solves the problem of water-cooled temperature difference in parallel circuits, achieves consistent cooling of the battery pack's internal temperature, and improves cooling efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a novel parallel water-cooling control system which comprises a base, flow dividing pipelines are arranged on the surfaces of the two sides of the upper end of the base, water-cooling relay sets are arranged on the surfaces of the flow dividing pipelines, the number of the flow dividing pipelines is two, and a water-cooling control system is arranged between the flow dividing pipelines. An inlet and outlet connector pipe is arranged on the surface of one side of the water-cooling relay set and used for solving the problems that due to the fact that an existing hybrid power battery pack is high in charging and discharging rate, battery heating is serious, and water cooling must be configured for the hybrid power battery pack; however, multiple battery packs are easy to cool inconsistently due to inconsistent lengths of water pipes and positions of the battery packs.
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Description

Technical Field

[0001] This utility model mainly relates to the field of battery pack structure, specifically to a novel parallel water-cooling control system. Background Technology

[0002] As the improvement of battery electric vehicle energy density reaches a bottleneck, the popularity of new energy hybrid vehicles is increasing. Hybrid new energy vehicles not only reduce fuel consumption, but also keep the overall vehicle cost within an acceptable range in the market. Due to the high charge and discharge rate of hybrid battery packs, the battery heat generation problem is serious. Water cooling is a must for hybrid battery packs. However, multiple battery packs are prone to inconsistent internal cooling due to differences in water pipe length and battery pack position. Utility Model Content

[0003] 1. The technical problem to be solved by the utility model:

[0004] This utility model provides a novel parallel water-cooling control system to solve the problem of severe battery overheating caused by high charge and discharge rates in existing hybrid battery packs. Water cooling is a necessary feature for hybrid battery packs, but multiple battery packs are prone to inconsistent internal cooling due to differences in water pipe length and battery pack position.

[0005] 2. Technical Solution:

[0006] To achieve the above objectives, the technical solution provided by this utility model is as follows: a novel parallel water-cooling control system, comprising a base, with diversion pipes arranged on both sides of the upper end of the base, and water-cooled relay groups arranged on the surface of the diversion pipes. Two diversion pipes are provided, and a water-cooling control system is arranged between them. An inlet / outlet connector pipe is arranged on one side of the surface of each water-cooled relay group.

[0007] The water-cooled relay group includes an outer tube, an inlet pipe inside the outer tube, a return pipe inside the outer tube on one side of the inlet pipe, a control relay at the other end of the outer tube, and a connecting sleeve on the surface of the other end of the control relay.

[0008] Furthermore, the water-cooling control system includes a compressor and a control system. The compressor is used for water cooling, and the control system receives the working signals of the control relays. The control system is responsible for collecting the temperature of each battery pack and controlling the compressor and each control relay to turn on and off.

[0009] Furthermore, the diversion pipes are connected to the inlet pipe and the return pipe respectively, and the return pipe is connected to the compressor. The compressor cools down the coolant, which absorbs heat and causes the temperature to rise, and provides circulation power.

[0010] Furthermore, a battery pack is provided on one side of the inlet / outlet connector pipe, and a temperature acquisition sensor is provided on the surface of the battery pack. The temperature acquisition sensor feeds back the battery pack temperature to the control system.

[0011] Furthermore, the inlet / outlet connector pipe is provided with two interfaces, which are respectively connected to the inlet pipe and the return pipe inside the connecting sleeve.

[0012] 3. Beneficial effects:

[0013] This invention is reasonably designed. It adopts a parallel circuit and adds a control relay at the water inlet of each parallel circuit. The control relay is controlled by the water cooling control system 4. Once the temperature of one battery pack is lower than the temperature of the other battery packs by a certain value, the relay of that battery pack is closed. After the temperature of the battery pack is consistent with the temperature of the other battery packs, the water cooling of this circuit is reopened. This invention can effectively solve the problem of temperature difference in parallel circuit water cooling. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a three-dimensional schematic diagram of the water-cooled relay assembly of this utility model;

[0016] Figure 3 This is a schematic diagram of the working process of this utility model.

[0017] Figure label:

[0018] 1. Base; 2. Diversion pipe; 3. Water-cooled relay group; 301. Outer sleeve; 302. Inlet pipe; 303. Return pipe; 304. Control relay; 305. Connecting sleeve; 4. Water-cooled control system; 5. Inlet and outlet connectors; Detailed Implementation

[0019] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the utility model will be more thorough and complete.

[0020] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," and "equipped with" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Example

[0023] See attached document Figure 1-3 The system includes a base 1, with two diversion pipes 2 on the upper surfaces of the base 1. Two water-cooled relay groups 3 are mounted on the surfaces of the diversion pipes 2, and a water-cooling control system 4 is connected between them. One side of each water-cooled relay group 3 has inlet / outlet connectors 5. This control system uses the water-cooled relay group 3 to control the temperature of one battery pack to be lower than the temperatures of other battery packs by a certain value, thus closing the control relay 304 of that battery pack and avoiding the problem of temperature difference in parallel circuits.

[0024] The water-cooled relay group 3 includes an outer sleeve 301, inside which a water inlet pipe 302 is disposed. A water return pipe 303 is disposed on one side of the water inlet pipe 302 inside the outer sleeve 301. A control relay 304 is disposed at the other end of the outer sleeve 301, and a connecting sleeve 305 is disposed on the surface of the other end of the control relay 304. The water-cooling control system 4 includes a compressor and a control system. The compressor is used for water cooling, and the control system receives the operating signal from the control relay 304. The control system is responsible for collecting the temperature of each battery pack and controlling the compressor to... The control relays 304 are turned on and off. The diversion pipe 2 is connected to the inlet pipe 302 and the return pipe 303 respectively. The return pipe 303 is connected to the compressor. The compressor cools the coolant, which absorbs heat and causes the temperature to rise, and provides circulation power. A battery pack is provided on one side of the inlet / outlet connector pipe 5. A temperature acquisition sensor is provided on the surface of the battery pack. The temperature acquisition sensor feeds back the temperature of the battery pack to the control system. The inlet / outlet connector pipe 5 is provided with two interfaces, which are connected to the inlet pipe 302 and the return pipe 303 inside the connecting sleeve 305 respectively.

[0025] In this embodiment, the present invention adopts a parallel circuit, and a control relay is added at the water inlet of each parallel circuit. The control relay is controlled by the water cooling control system 4. Once the temperature of one battery pack is lower than the temperature of the other battery packs by a certain value, the relay of that battery pack is closed. The water cooling of this circuit is reopened after the temperature of the battery pack is consistent with the temperature of the other battery packs. This invention can effectively solve the problem of temperature difference in parallel circuit water cooling.

[0026] The above-described embodiments are merely illustrative of certain implementations of this utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A novel parallel water-cooling control system, characterized in that... It includes a base (1), on both sides of the upper end of the base (1) are provided with diversion pipes (2), on the surface of the diversion pipes (2) are provided with water-cooled relay groups (3), there are two diversion pipes (2), and a water-cooled control system (4) is provided between them. On one side of the surface of the water-cooled relay group (3) are provided inlet and outlet connectors (5). The water-cooled relay group (3) includes an outer tube (301), an inlet pipe (302) is provided inside the outer tube (301), a return pipe (303) is provided on one side of the inlet pipe (302) inside the outer tube (301), a control relay (304) is provided at the other end of the outer tube (301), and a connecting sleeve (305) is provided on the surface of the other end of the control relay (304).

2. The novel parallel water-cooling control system according to claim 1, characterized in that: The water cooling control system (4) includes a compressor and a control system. The compressor is used for water cooling and the control system receives the working signal of the control relay (304). The control system is responsible for collecting the temperature of each battery pack and controlling the compressor and each control relay (304) to open and close.

3. A novel parallel water-cooling control system according to claim 1, characterized in that: The diversion pipe (2) is connected to the inlet pipe (302) and the return pipe (303) respectively, and the return pipe (303) is connected to the compressor. The compressor cools down the coolant that has absorbed heat and caused the temperature to rise, and provides circulation power.

4. A novel parallel water-cooling control system according to claim 1, characterized in that: A battery pack is provided on one side of the inlet / outlet connector pipe (5), and the surface of the battery pack is provided with temperature The data acquisition sensor, specifically the temperature acquisition sensor, feeds back the battery pack temperature to the control system.

5. A novel parallel water-cooling control system according to claim 1, characterized in that: The inlet and outlet connector pipe (5) is provided with two interfaces, which are respectively connected to the inlet pipe (302) and the return pipe (303) inside the connecting sleeve (305).