A pipe water valve for a thermal management system
Patent Information
- Application Number
- CN202522290217.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-29
- Publication Date
- 2026-09-25
- Estimated Expiration
- 2035-10-29
AI Technical Summary
目前,市面上主流的热管理系统管道水阀多采用多阀体组合结构或复杂的机械传动机构实现水流切换:部分水阀通过多个独立阀门的协同控制来改变水流路径,不仅整体体积大、占用安装空间多,还存在多阀同步性差、易出现水流泄漏的问题;另有部分水阀依赖齿轮、凸轮等机械传动部件驱动阀芯运动,机械磨损导致阀门的使用寿命缩短,且传动过程中的间隙易造成水流切换延迟,难以满足热管理系统对快速温控响应的需求
1.一体化设计集成核心部件,电磁铁直驱阀芯省去复杂传动件,减少零件、降低加工维护成本,缩小体积以适配狭小安装场景。
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Figure CN224801076U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of thermal management technology, and more specifically, it relates to a pipeline water valve for a thermal management system. Background Technology
[0002] In thermal management systems used in automobiles, new energy equipment, and industrial temperature control, pipeline water valves are core components for regulating coolant flow, and their performance directly affects the system's temperature control accuracy and operational efficiency. Currently, most mainstream pipeline water valves in thermal management systems employ multi-valve body combinations or complex mechanical transmission mechanisms to achieve water flow switching. Some valves change the water flow path through the coordinated control of multiple independent valves, resulting in large overall size, significant installation space requirements, poor valve synchronization, and a tendency for water leakage. Other valves rely on gears, cams, and other mechanical transmission components to drive the valve core, leading to mechanical wear that shortens valve lifespan. Furthermore, gaps in the transmission process can cause delays in water flow switching, failing to meet the rapid temperature control response requirements of thermal management systems. In addition, traditional water valves require high precision in the fit between the valve core and valve cavity, resulting in high manufacturing costs. The complex structure also increases the difficulty of later maintenance, hindering large-scale application in cost- and space-sensitive thermal management scenarios (such as thermal management systems for new energy vehicle batteries), leading to poor overall performance. Therefore, this utility model proposes a pipeline water valve for thermal management systems. Utility Model Content
[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a pipeline water valve for a thermal management system, which has the characteristics of simple structure and convenient control.
[0004] To solve the above-mentioned technical problems, the purpose of this utility model is achieved as follows: This utility model relates to a water valve for a thermal management system, comprising a valve body, a columnar valve cavity within the valve body, a valve core slidably connected within the valve cavity, an inlet communicating with one end of the valve cavity, the inlet being located on the valve body, and an electromagnet assembly fixedly connected to the valve body at the other end of the valve cavity. The electromagnet assembly includes an electromagnet body, an iron core on the electromagnet body, the iron core extending into the valve cavity and moving axially relative to it, one end of the iron core connected to the valve core, and a sleeve for automatic reset on the iron core. The valve core is fitted with a first sealing ring, a second sealing ring, and a third sealing ring that abut against the inner wall of the valve cavity. The second sealing ring is located between the first sealing ring and the third sealing ring. The valve core has a first channel extending axially and a second channel extending radially. One end of the second channel is connected to the first channel and the other end is connected to the outside. The end of the first channel that is not connected to the second channel is connected to the outside. The opening of the second channel that connects to the outside is located between the first sealing ring and the second sealing ring. The wall of the valve cavity has a first outlet far from the inlet and a second outlet close to the inlet. When the iron core is shortened, the valve core moves close to the electromagnet assembly, the first outlet is located between the first sealing ring and the second sealing ring, the second outlet is located between the second sealing ring and the third sealing ring, and the second channel is connected to the first outlet. When the iron core extends, the valve core moves away from the electromagnet assembly, the second outlet is located between the first sealing ring and the second sealing ring, and the second channel is connected to the second outlet.
[0005] The present invention is further configured such that a fourth sealing ring is embedded at one end of the valve core facing away from the electromagnet assembly and surrounding the water inlet.
[0006] The present invention is further configured such that the valve core is cylindrical.
[0007] The present invention is further configured such that the first channel and the valve core are arranged on the same axis.
[0008] The present invention is further configured such that the second channel is arranged around the axis of the valve core.
[0009] The present invention is further configured such that an annular groove is provided on the outer wall of the valve core between the first sealing ring and the second sealing ring.
[0010] The present invention is further configured such that: the inlet is provided with a first pipe connector for connecting to the water valve body; the first outlet is provided with a second pipe connector for connecting to the water valve body; and the second outlet is provided with a third pipe connector for connecting to the water valve body.
[0011] The present invention is further configured such that the elastic element is a compression spring with one end abutting against the inner wall of the valve cavity and the other end abutting against the valve core.
[0012] In summary, this utility model has the following beneficial effects: 1. The integrated design integrates core components. The electromagnet direct-drive valve core eliminates complex transmission parts, reduces parts, lowers processing and maintenance costs, and reduces size to adapt to narrow installation scenarios.
[0013] 2. The electromagnet drive has a fast response and can quickly switch the water flow direction. The valve core channel and water inlet are precisely matched to ensure stable sealing, avoid leakage fluctuations, and improve temperature control accuracy and system efficiency. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partial structural schematic diagram of the present invention; Figure 3 This is a partial structural schematic diagram of the present invention; Figure 4 This is a structural schematic diagram of another state of this utility model. Detailed Implementation
[0015] To enable those skilled in the art to better understand the technical solution of this utility model, the preferred embodiments of this utility model are described below in conjunction with specific examples. However, it should be understood that these descriptions are only for further illustrating the features and advantages of this utility model, and not for limiting the patent claims of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.
[0016] The present invention will be further described below with reference to the accompanying drawings and preferred embodiments.
[0017] Example 1 See Figures 1 to 4As shown, this embodiment relates to a water valve for a thermal management system, comprising a valve body 1, a cylindrical valve cavity 2 within the valve body 1, a cylindrical valve core 3 slidably connected within the valve cavity 2, an inlet 4 communicating with one end of the valve cavity 2, the inlet 4 being located on the valve body, and an electromagnet assembly 5 fixedly connected to the valve body at the other end of the valve cavity 2, the electromagnet assembly 5 comprising an electromagnet body 501, an iron core 502 on the electromagnet body 501, the iron core 502 extending into the valve cavity and moving axially relative to it, one end of the iron core 502 being connected to the valve core 3, and an elastic element 503 for automatic reset fitted on the iron core 502, the elastic element 503 having one end abutting against the valve cavity. A compression spring abuts against the valve core at one end and the other end against the valve core. The valve core 3 is fitted with a first sealing ring 6, a second sealing ring 7, and a third sealing ring 8 against the inner wall of the valve cavity. The second sealing ring 7 is located between the first sealing ring 6 and the third sealing ring 8. The valve core 3 has a first channel 9 extending axially and a second channel 10 extending radially. One end of the second channel 10 is connected to the first channel 9 and the other end is connected to the outside. The end of the first channel 9 that is not connected to the second channel 10 is connected to the outside. The channel opening of the second channel 10 that is connected to the outside is located between the first sealing ring 6 and the second sealing ring 7. The valve cavity 2 has a first outlet 11 far from the inlet and a second outlet 12 close to the inlet. When the iron core is shortened, the valve core moves close to the electromagnet assembly, the first outlet is located between the first sealing ring and the second sealing ring, the second outlet is located between the second sealing ring and the third sealing ring, and the second channel is connected to the first outlet. When the iron core extends, the valve core moves away from the electromagnet assembly, the second outlet is located between the first sealing ring and the second sealing ring, and the second channel is connected to the second outlet.
[0018] Furthermore, the first channel 9 is arranged coaxially with the valve core 3.
[0019] Furthermore, the second channel 10 is arranged circumferentially around the axis of the valve core 3.
[0020] Furthermore, the inlet 4 is provided with a first pipe connector 15 for connecting to the water valve body; the first outlet 11 is provided with a second pipe connector 16 for connecting to the water valve body; and the second outlet 12 is provided with a third pipe connector 17 for connecting to the water valve body.
[0021] In the thermal management scenario of new energy vehicle batteries, the water valve body is first fixed to the system pipeline, with the inlet connected to the coolant supply pipe, the first outlet connected to the heat dissipation pipe, and the second outlet connected to the insulation pipe. The valve core is connected to an electromagnet, and the electromagnet is connected to the control circuit. When the battery is at a high temperature and needs to dissipate heat, the control circuit sends a positive current to the electromagnet, driving the valve core to slide away from the inlet, allowing the coolant to flow into the heat dissipation pipe from the first outlet through the first and second channels of the valve core. When the battery is at a low temperature and needs to be kept warm, the electromagnet receives a reverse current, the valve core slides closer to the inlet, and the coolant flows into the insulation pipe from the second outlet. The electromagnet maintains its magnetic state continuously, resulting in a short switching response time.
[0022] Example 2 See Figures 1 to 4 As shown, the pipeline water valve for a thermal management system involved in this embodiment is further configured, based on embodiment 1, with a fourth sealing ring 13 embedded at one end of the valve core 3 facing away from the electromagnet assembly and surrounding the water inlet.
[0023] In this embodiment, the fourth sealing ring 13 is used to enhance the sealing effect on the valve core end face.
[0024] Example 3 See Figures 1 to 4 As shown, the pipeline water valve for a thermal management system involved in this embodiment is further configured, based on embodiment 1, with an annular groove 14 provided on the outer wall of the valve core between the first sealing ring 6 and the second sealing ring 7.
[0025] In this embodiment, the annular groove 14 is provided to prevent air leakage, thereby enabling faster water flow.
[0026] The pipeline water valve for the thermal management system involved in this utility model integrates core components through an integrated design. The electromagnet directly drives the valve core, eliminating complex transmission parts, reducing parts, lowering processing and maintenance costs, and reducing size to adapt to confined installation scenarios. Furthermore, the electromagnet drive has a fast response and can quickly switch the water flow direction. The valve core channel and water inlet are precisely matched to ensure stable sealing, avoid leakage fluctuations, improve temperature control accuracy and system efficiency, and have complete overall functions and strong practicality.
[0027] Unless otherwise specified, in this utility model, terms such as "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the actual orientation or positional relationship shown. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe orientation or positional relationships in this utility model are for illustrative purposes only and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood in conjunction with the embodiments and according to the specific circumstances.
[0028] Unless otherwise expressly specified and limited, the terms "set up," "connected," and "linked" in this utility model 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 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 based on the specific circumstances.
[0029] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.
Claims
1. A water valve for a thermal management system, comprising a valve body, characterized in that: The water valve body has a columnar valve cavity, in which a valve core is slidably connected. One end of the valve cavity has a water inlet communicating with it, which is located on the water valve body. The other end of the valve cavity has an electromagnet assembly fixedly connected to the water valve body. The electromagnet assembly includes an electromagnet body, on which an iron core is provided. The iron core extends into the valve cavity and moves axially relative to the valve core. One end of the iron core is connected to the valve core. An elastic element for automatic reset is also fitted on the iron core. The valve core is fitted with a first sealing ring, a second sealing ring, and a third sealing ring that abut against the inner wall of the valve cavity. The second sealing ring is located between the first sealing ring and the third sealing ring. The valve core has a first channel extending axially and a second channel extending radially. One end of the second channel is connected to the first channel and the other end is connected to the outside. The end of the first channel that is not connected to the second channel is connected to the outside. The channel opening of the second channel that connects to the outside is located between the first sealing ring and the second sealing ring. The wall of the valve cavity has a first outlet away from the water inlet and a second outlet close to the water inlet. When the iron core is shortened, the valve core moves close to the electromagnet assembly, the first outlet is located between the first sealing ring and the second sealing ring, the second outlet is located between the second sealing ring and the third sealing ring, and the second channel is connected to the first outlet. When the iron core extends, the valve core moves away from the electromagnet assembly, the second outlet is located between the first sealing ring and the second sealing ring, and the second channel is connected to the second outlet.
2. The water valve for a thermal management system according to claim 1, characterized in that: The valve core has a fourth sealing ring embedded at the end facing away from the electromagnet assembly, which surrounds the water inlet.
3. The water valve for a thermal management system according to claim 1 or 2, characterized in that: The valve core is cylindrical.
4. The water valve for a thermal management system according to claim 3, characterized in that: The first channel is arranged coaxially with the valve core.
5. The water valve for a thermal management system according to claim 4, characterized in that: The second channel is arranged around the axis of the valve core.
6. The pipeline water valve for a thermal management system according to claim 5, characterized in that: An annular groove is provided on the outer wall of the valve core between the first sealing ring and the second sealing ring.
7. The water valve for a thermal management system according to claim 5, characterized in that: The inlet is provided with a first pipe connector for connecting to the water valve body; the first outlet is provided with a second pipe connector for connecting to the water valve body; and the second outlet is provided with a third pipe connector for connecting to the water valve body.
8. The water valve for a thermal management system according to claim 1, characterized in that: The elastic element is a compression spring with one end abutting against the inner wall of the valve cavity and the other end abutting against the valve core.