Two-cavity thermal management module
By dividing the valve body into two chambers and adopting a coupled valve core design, the problem of low integration of the thermal management system is solved, realizing a highly integrated, highly sensitive, small-sized, and low-cost thermal management module, and optimizing the spatial layout and control effect.
Patent Information
- Application Number
- CN202423110971.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-17
AI Technical Summary
In existing thermal management systems, the integration level of thermal management systems in range-extended electric vehicles or hybrid vehicles is low, resulting in a large number of water valves and water pumps, complex HVAC circuits, large size, high cost, and impact on vehicle space layout.
A two-chamber thermal management module is designed, which divides the valve body into two chambers and uses two coupled valve cores distributed in the two chambers respectively to realize the connection, cut-off or flow ratio regulation of multiple flow ports. The module is connected by spline coupling to improve the integration and regulation accuracy.
It achieves high integration, high sensitivity, small size, low cost, and convenient control of the thermal management module, and optimizes the spatial layout and overall performance of the thermal management system.
Smart Images
Figure CN223622288U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of thermal management technology, specifically relating to a two-chamber thermal management module. Background Technology
[0002] Currently, the thermal management systems for range-extended electric vehicles and other hybrid vehicles in the industry use a large number of water valves and water pumps in the circuit control involving engine cooling and pure electric cooling. Typically, two or three valves need to be connected in series or parallel to achieve the corresponding functions. The HVAC circuits are complex, bulky, and costly, resulting in low integration of the thermal management system and severely impacting vehicle space layout. Utility Model Content
[0003] The technical problem to be solved by this utility model is the low degree of integration of the thermal management system. In view of the shortcomings of the existing technology, a two-chamber thermal management module is provided.
[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0005] A two-chamber thermal management module includes: a valve body, an actuator, an actuator support, a first valve core, a second valve core, a first chamber, a second chamber, a second shaft seal, and a water pump inlet pipe; the valve body has a hollow structure, and the inner cavity of the valve body is divided into a first chamber and a second chamber by the second shaft seal; the first valve core and the second valve core are respectively disposed inside the first chamber and the second chamber; a first flow channel opening is opened on the front side of the first valve core; a second flow channel opening is opened on the rear side of the first valve core; a third flow channel opening is opened on the side of the second valve core; a fourth flow channel opening is opened at the rear end of the second valve core; a water inlet corresponding to the flow channel opening is opened on the valve body; the actuator is connected to the flange of the first chamber in conjunction with the actuator support; a water pump inlet corresponding to the fourth flow channel opening is opened on the valve body; the water pump inlet pipe is connected to the water pump inlet flange; the actuator is drivenly connected to the first valve core; the first valve core is drivenly connected to the second valve core.
[0006] The valve body has a cylinder head water inlet and a radiator water inlet corresponding to the first flow channel inlet; the valve body has a heater water inlet corresponding to the second flow channel inlet; the valve body has a pure electric heater water inlet corresponding to the third flow channel inlet; and the valve body has a connecting port that communicates with the functional connector.
[0007] Preferably, the heating air inlet and the pure electric heating air inlet are connected in parallel to the heating air pipe through a heating air inlet seal.
[0008] Preferably, the first flow channel is used to simultaneously connect the valve body radiator inlet and the cylinder head inlet.
[0009] Preferably, the first valve core has a first external spline at its front end; the actuator has a second internal spline inside; and the actuator and the first valve core are connected by spline coupling.
[0010] Furthermore, the first valve core has a first internal spline inside its rear end; the second valve core has a second external spline at its front end; the first valve core and the second valve core are connected by spline coupling.
[0011] Furthermore, a valve core angle limiting block is integrally provided at the rear end of the first valve core and at the edge of the valve core; a valve body limiting block that cooperates with the valve core angle limiting block is fixedly provided in the first chamber of the valve body.
[0012] Furthermore, the first valve core passes through the first shaft seal and the actuator support and is connected to the actuator via spline coupling.
[0013] Compared with the prior art, this utility model, based on the requirements of the thermal management system, designs the valve body as two chambers and the valve core as two coupled valve core assemblies distributed in the two chambers respectively, so as to realize the proportional adjustment of different connections, cut-offs or flow rates in multiple flow ports. It has a high degree of integration, good adjustment sensitivity and high precision, convenient control, small size and low cost. Attached Figure Description
[0014] The present invention will now be described in further detail with reference to the accompanying drawings.
[0015] Figure 1 : Schematic diagram of the overall assembly structure of this utility model;
[0016] Figure 2 : Exploded view of the structure of this utility model;
[0017] Figure 3 This utility model presents a cross-sectional diagram showing the flow state of the heat source fluid inside the valve body when the valve core is rotated to 40°.
[0018] Figure 4 : A schematic diagram showing the relationship between the valve core rotation angle and the opening area of each flow channel port of this utility model;
[0019] Figure 5 : Schematic diagram of the valve body structure of this utility model;
[0020] Figure 6 : Schematic diagram of the first valve core structure of this utility model;
[0021] Figure 7 : Schematic diagram of the second valve core structure of this utility model;
[0022] Figure 8 : Schematic diagram of the shaft seal structure of this utility model;
[0023] Among them, 1-valve body, 11-first chamber, 12-second chamber, 13-cylinder head water port, 14-radiator water port, 15-heater water port, 16-pure electric heater water port, 17-water pump inlet, 18-valve body angle limiting block, 19-connecting port, 2-actuator, 21-actuator support, 22-second internal spline, 3-first valve core, 31-first flow channel port, 32-second flow channel port, 33-first external spline, 34-first internal spline, 35-valve core angle limiting block, 4-second valve core, 41-third flow channel port, 42-fourth flow channel port, 43-second external spline, 51-first shaft seal, 52-second shaft seal, 61-water pump inlet pipe, 62-heater water pipe, 7-functional connector. Detailed Implementation
[0024] To better understand this utility model, the following embodiments further illustrate its content, but the scope of protection of this utility model is not limited to the embodiments described below. Numerous specific details are set forth in the following description to provide a more thorough understanding of this utility model. However, it will be apparent to those skilled in the art that this utility model can be practiced without one or more of these details.
[0025] A two-chamber thermal management module includes: a valve body 1, an actuator 2, an actuator support 21, a first valve core 3, a second valve core 4, a first chamber 11, a second chamber 12, a second shaft seal 52, and a water pump inlet pipe 61; the valve body 1 has a hollow structure, and the inner cavity of the valve body 1 is divided into a first chamber 11 and a second chamber 12 by the second shaft seal 52; the first valve core 3 and the second valve core 4 are respectively disposed inside the first chamber 11 and the second chamber 12; a first flow channel opening 31 is opened on the front side of the first valve core 3; a second flow channel opening 32 is opened on the rear side of the first valve core 3; and a second flow channel opening 32 is opened on the rear side of the second valve core 4; The valve body 1 has a third flow channel opening 41; the second valve core has a fourth flow channel opening 42 at its rear end; the valve body 1 has water inlets corresponding to the flow channel openings (first flow channel opening 31, second flow channel opening 32, third flow channel opening 41 and fourth flow channel opening 42); the actuator 2 is connected to the flange of the first chamber 11 in conjunction with the actuator support 21; the valve body 1 has a water pump inlet 17 corresponding to the fourth flow channel opening 42; the water pump inlet pipe 61 is connected to the flange of the water pump inlet 17; the actuator 2 is drivenly connected to the first valve core 3; the first valve core 3 is drivenly connected to the second valve core 4.
[0026] The valve body 1 has a cylinder head water inlet 13 and a radiator water inlet 14 corresponding to the first flow channel inlet 31; the valve body 1 has a heater water inlet 15 corresponding to the second flow channel inlet 32; the valve body 1 has a pure electric heater water inlet 16 corresponding to the third flow channel inlet 41; and the valve body 1 has a communication port 19 that communicates with the functional connector 7. The functional connector in this device connects to a temperature monitoring module, a circulation module, and a turbocharging module.
[0027] The heating water inlet 15 and the pure electric heating water inlet 16 are connected in parallel to the heating water pipe 62 through a heating water inlet seal. This method increases space utilization efficiency and optimizes the spatial layout of the thermal management module.
[0028] The first flow channel 31 is used to simultaneously connect the cylinder head water inlet 13 and the radiator water inlet 14.
[0029] The above structure divides a valve body into two chambers by the second shaft seal 52. The two chambers, together with the two valve cores connected by the split transmission, divide the internal flow channel structure of the valve body into three sections corresponding to the four flow channel ports of the valve core. The four flow channel ports, together with multiple water ports, improve the high degree of integration of the thermal management module.
[0030] Furthermore, the first valve core 3 is provided with a first external spline 33 at its front end; the actuator is provided with a second internal spline 22; the actuator 2 and the first valve core 3 are connected by spline coupling.
[0031] Furthermore, the first valve core 3 has a first internal spline 34 inside its rear end; the second valve core 4 has a second external spline 43 at its front end; the first valve core 3 and the second valve core 4 are connected by spline coupling. This spline coupling connection achieves high-precision positioning and engagement of the first valve core 3 and the second valve core 4, ensuring the accuracy and stability of the connection. Due to the large contact area, it can bear a larger load, giving the connection high load-bearing capacity. It is fixed along the axial direction, making axial movement less likely and generating additional loads, effectively transmitting torque and speed.
[0032] Furthermore, a valve core angle limiting block 35 is integrally provided on the rear edge of the first valve core 3; a valve body angle limiting block 18 that cooperates with the valve core angle limiting block 35 is fixedly provided in the first chamber 11. The angle limiting block is used to limit the rotation of the valve core. Through the interaction with the valve core and the angle limiting block, it facilitates the limitation of the valve's rotation angle and enables the valve to achieve angle self-learning and angle calibration functions in conjunction with the actuator.
[0033] Furthermore, the first valve core 3 passes through the first shaft seal 51 and the actuator support 21 and is connected to the actuator 2 via spline coupling. The first shaft seal 51 is placed between the first valve core 3 and the actuator 2 to prevent fluid leakage from the valve body.
[0034] When in use, the actuator is powered on and executes commands, causing the valve core to rotate to different angles.
[0035] When the valve core rotates to 0°: the first flow channel port is simultaneously connected to the radiator water port 14 and the cylinder head water port 13. The radiator water port 14 is connected to the first flow channel port 31 to the maximum opening area, and the cylinder head water port 13 is connected to the first flow channel port 31 close to the maximum opening area. At this time, the heat source fluid flows from the cylinder head water port 13 into the first chamber 11, passes through the first flow channel port 31, and enters the radiator water port 14 to perform heat dissipation.
[0036] When the valve core rotates to 22°: the cylinder head water inlet 13 connects to the first flow channel inlet 31 to the maximum opening area.
[0037] When the valve core rotates to 28°: the heater core 15 connects to the second flow channel 32. At this time, part of the heat source fluid flows from the cylinder head 13 into the first chamber 11, passes through the first flow channel 31, and enters the radiator 14 for heat dissipation. The other part of the heat source fluid flows from the cylinder head 13 into the first chamber 11, passes through the first flow channel 31, and connects to the heater core 15 through the second flow channel 32 for heating.
[0038] When the valve core rotates to 64°: the warm air inlet 15 connects to the second flow channel inlet 32 to the maximum opening area.
[0039] When the valve core rotates to 70°, the opening area of the radiator water inlet 14 connecting to the first flow channel 31 begins to decrease.
[0040] When the valve core rotates to 126°: the opening area of the radiator water inlet 14 connected to the first flow channel 31 is 0; at this time, all the heat source fluid flows from the cylinder head water inlet 13 into the first chamber 11, passes through the first flow channel 31 and the second flow channel 32, and enters the heater water inlet 15 for heating.
[0041] When the valve core rotates to 130°, the opening area of the warm air inlet 15 connecting to the second flow channel 32 begins to decrease.
[0042] When the valve core rotates to 160°: the opening area of the cylinder head water port 13 connecting to the first flow channel port 31 begins to decrease.
[0043] When the valve core rotates to 166°: the opening area of the warm air inlet 15 connecting to the second flow channel 32 is 0.
[0044] When the valve core rotates to 220°: the opening area of the cylinder head water port 13 connecting to the first flow channel port 31 is 0.
[0045] When the valve core rotates to 226°: the opening area of the radiator inlet 14 connected to the first flow channel 31 begins to increase, but since the heat source fluid does not flow into the first chamber, the radiator inlet only forms an opening area with the first flow channel and does not participate in the heat dissipation work.
[0046] When the valve core rotates to 232°: the opening area of the pure electric heating air inlet 16 connected to the third flow channel 41 begins to increase. The water pump inlet 17 pumps heat source fluid into the second chamber 12 through the fourth flow channel 42. The opening area of the pure electric heating air inlet 16 connected to the third flow channel 41 begins to increase. At this time, the heat source fluid flows from the water pump inlet pipe 61, through the water pump inlet 17 and the fourth flow channel 42, into the second chamber 12, through the third flow channel 41, and into the pure electric heating air inlet 16 to perform heating work.
[0047] When the valve core rotates to 285°: radiator inlet 14 connects to the first flow channel to the maximum opening area, and pure electric heater inlet 16 connects to the third flow channel 41 to the maximum opening area.
[0048] When the valve core rotates to 298°: the radiator water inlet 14 connects to the first flow channel inlet 31 to the maximum opening area, and the pure electric heater water inlet 16 connects to the third flow channel inlet 41 to the maximum opening area; at this time, the interaction angle limiting block set between the valve body 1 and the valve core works to realize the valve core rotation angle limit, so that the valve core stops rotating further.
[0049] According to the requirements of the thermal management system, this utility model adopts the above structure to divide a valve body into two chambers by a second shaft seal. The two chambers, together with two valve cores connected by separate transmission, divide the internal flow channel structure of the valve body into three sections corresponding to the four flow channels of the valve core. The four flow channels, together with multiple water inlets, improve the high degree of integration of the thermal management module, realize the proportional adjustment of different connections, cut-offs or flow rates in multiple flow ports, and have a high degree of integration, good adjustment sensitivity and accuracy, convenient control, small size and low cost.
[0050] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A two-chamber thermal management module, characterized in that: include: The valve body comprises an actuator, an actuator support, a first valve core, a second valve core, a first chamber, a second chamber, a second shaft seal, and a water pump inlet pipe. The valve body has a hollow structure, and its internal cavity is divided into a first chamber and a second chamber by the second shaft seal. The first valve core and the second valve core are respectively disposed within the first and second chambers. A first flow channel opening is provided on the front side of the first valve core. A second flow channel opening is provided on the rear side of the first valve core. A third flow channel opening is provided on the side of the second valve core. A fourth flow channel opening is provided at the rear end of the second valve core. A water inlet corresponding to the flow channel opening is provided on the valve body. The actuator, in conjunction with the actuator support, is connected to the flange of the first chamber. A water pump inlet corresponding to the fourth flow channel opening is provided on the valve body. The water pump inlet pipe is connected to the water pump inlet flange. The actuator is drivenly connected to the first valve core. The first valve core is drivenly connected to the second valve core.
2. The dual-chamber thermal management module according to claim 1, characterized in that: The valve body has a cylinder head water inlet and a radiator water inlet corresponding to the first flow channel inlet; the valve body has a heater water inlet corresponding to the second flow channel inlet; the valve body has a pure electric heater water inlet corresponding to the third flow channel inlet; and the valve body has a connecting port that communicates with the functional connector.
3. A two-chamber thermal management module according to claim 2, characterized in that: The heating air inlet and the pure electric heating air inlet are connected in parallel to the heating air pipe through a heating air inlet seal.
4. A two-chamber thermal management module according to claim 2, characterized in that: The first flow channel is used to simultaneously connect the radiator water inlet and the cylinder head water inlet.
5. A two-chamber thermal management module according to claim 1, characterized in that: The first valve core has a first external spline at its front end; the actuator has a second internal spline inside; the actuator and the first valve core are connected by spline coupling.
6. A two-chamber thermal management module according to claim 5, characterized in that: The first valve core has a first internal spline at its rear end; the second valve core has a second external spline at its front end; the first valve core and the second valve core are connected by spline coupling.
7. A two-chamber thermal management module according to claim 1, characterized in that: The first valve core has an angle limiting block integrally provided at its rear end and at its edge; the valve body has a valve body limiting block fixedly provided in the first chamber of the valve body, which cooperates with the valve core angle limiting block.
8. A two-chamber thermal management module according to claim 1, characterized in that: The first valve core passes through the first shaft seal and the actuator support and is connected to the actuator via spline coupling.