Thermal management system of vehicle

Abstract

The invention provides a thermal management system of a vehicle, and the thermal management system comprises a shell which is provided with a first accommodating cavity, a second accommodating cavity and a four-way valve mounting cavity; the heating mechanism is arranged in the first containing cavity and used for heating water; the evaporation mechanism is arranged at the top of the heating mechanism; the four-way valve mechanism is arranged in the four-way valve mounting cavity; the control panel is arranged in the second containing cavity, and the control panel is electrically connected with the heating mechanism and the four-way valve mechanism; wherein the shell, the heating mechanism, the evaporation mechanism, the four-way valve mechanism and the control panel are connected with one another to form an integrated body; the technical problems that in the prior art, a heater, an evaporator and a four-way valve are arranged in a scattered mode, so that the whole heat management system is complex in structure and multiple in parts, the installation process is tedious, the technical difficulty is increased, and the installation difficulty of the heat management system in the installation process is improved are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy vehicles, and in particular to a thermal management system for a vehicle. Background Art

[0002] With the rapid development of the new energy vehicle industry, the thermal management system has become a key link in the performance of the entire vehicle. Its quality is directly related to the vehicle's endurance, driving comfort and even driving safety.

[0003] At present, the thermal management system of a vehicle is usually equipped with core components such as a water heater, an evaporator and a four-way valve, among which the water heater, the evaporator and the four-way valve are usually arranged independently.

[0004] However, there is at least one of the following problems in the related technology: the heater, evaporator and four-way valve in the existing technology are arranged in a dispersed manner, resulting in a complex structure and numerous components of the entire thermal management system, making the installation process cumbersome and technically difficult, thereby increasing the difficulty of installing the thermal management system during the installation process. Summary of the Invention

[0005] The technical problem solved by the present invention is that the heater, evaporator and four-way valve in the existing technology are arranged in a dispersed manner, resulting in a complex structure and numerous parts of the entire thermal management system, making the installation process cumbersome and technically difficult, thereby increasing the difficulty of installing the thermal management system during the installation process.

[0006] In order to solve the above-mentioned technical problems, the present invention provides a vehicle thermal management system, which includes: a shell, which is provided with a first accommodating chamber, a second accommodating chamber and a four-way valve mounting chamber; a heating mechanism, which is arranged in the first accommodating chamber and is used to heat water; an evaporation mechanism, which is arranged on the top of the heating mechanism and is fixedly connected to the heating mechanism; a four-way valve mechanism, which is arranged in the four-way valve mounting chamber; a control board, which is arranged in the second accommodating chamber and is electrically connected to the heating mechanism and the four-way valve mechanism; wherein the shell, the heating mechanism, the evaporation mechanism, the four-way valve mechanism and the control board are interconnected to form an integrated body.

[0007] Compared with the existing technology, the technical effect achieved by adopting this technical solution is as follows: this solution forms an integrated body of the heating mechanism, evaporation mechanism and four-way valve mechanism in the shell by setting a shell, a heating mechanism, an evaporation mechanism, a four-way valve mechanism and a control panel, and uniformly controls them through the control panel, thereby realizing a modular setting of the thermal management system, making the structure of the entire thermal management system more concise, and improving the reliability and integration of the vehicle thermal management system; and during installation, it is only necessary to install the entire integrated body into the vehicle, thereby reducing the installation difficulty of the thermal management system during the installation process.

[0008] Furthermore, the heating mechanism, evaporation mechanism and four-way valve mechanism are integrated into the housing, which reduces the complex piping and wiring connections inside the thermal management system, thereby saving the cost of piping materials; at the same time, it also reduces the installation space required for the heating mechanism, evaporation mechanism and four-way valve mechanism in the vehicle, thereby saving the design cost of the vehicle.

[0009] In one example of the present invention, the four-way valve installation cavity includes a first cavity and a second cavity arranged adjacent to each other, and the four-way valve mechanism includes: a valve core, the valve core is installed in the first cavity, and the valve core is provided with multiple ports; a drive assembly, the drive assembly is installed in the second cavity and is electrically connected to the control board, the drive assembly is used to drive the valve core to rotate to change the flow direction of the fluid in the multiple ports; a valve stem shaft, one end of the valve stem shaft is connected to the valve core, and the other end is transmission-connected to the drive assembly; wherein, an axial hole for the valve stem shaft to pass through is provided between the first cavity and the second cavity, so that one end of the valve stem shaft is located in the first cavity and the other end is located in the second cavity.

[0010] Compared with the existing technology, the technical effect achieved by adopting this technical solution is as follows: this solution improves the convenience of installation by setting a first cavity and a second cavity to install the valve core and the drive assembly in separate cavities.

[0011] In one embodiment of the present invention, the four-way valve mechanism includes: a sleeve, which is sleeved on the outside of the valve stem shaft to enable the valve stem shaft to rotate with the shaft hole; and a sealing ring, which is sleeved on the outside of the valve stem shaft and located between the sleeve and the valve core.

[0012] Compared with the existing technology, the technical effect achieved by adopting this technical solution is: this solution realizes a rotational connection between the valve stem shaft and the shaft hole by setting a shaft sleeve, so as to reduce the friction between the valve stem shaft and the shaft hole, thereby extending the service life of the valve stem shaft; further, by setting a sealing ring, dynamic sealing is achieved between the valve stem shaft and the shaft hole during the rotation of the valve core, thereby improving the sealing performance.

[0013] In one example of the present invention, the first cavity is arranged at the top of the second cavity, and a first opening is provided at the top of the first cavity. The four-way valve mechanism also includes: a first cover body, which is detachably mounted on the top of the first cavity to cover the first opening; a second cover body, which is detachably connected to the bottom wall of the first cavity, and the second cavity is formed between the second cover body and the bottom wall; wherein a first mounting groove is provided on a side of the second cover body close to the first cavity, and the drive assembly is installed in the first mounting groove.

[0014] Compared with the existing technology, the technical effects achieved by adopting this technical solution are: first, this solution provides a first cover body that can be detachably installed on the top of the first cavity, which makes it convenient for maintenance personnel to disassemble and assemble the first cover body, thereby improving the convenience of inspecting the valve core; second, the second cover body is detachably connected to the bottom wall of the first cavity, which makes it convenient for maintenance personnel to disassemble and assemble the second cover body, thereby improving the convenience of inspecting the drive assembly.

[0015] In one example of the present invention, a first limiting portion and a second limiting portion are provided on a side of the first cover body close to the first cavity; a positioning protrusion is provided on the top of the valve core; wherein, when the first cover body is installed on the top of the first cavity and the driving assembly drives the valve core to rotate, the positioning protrusion moves between the first limiting portion and the second limiting portion.

[0016] Compared with the existing technology, the technical effect achieved by adopting this technical solution is: this solution realizes precise control of the rotation angle of the valve core by setting a positioning protrusion to cooperate with the first limit part and the second limit part, and performs hard stop protection on the valve core between the first limit part and the second limit part.

[0017] In one example of the present invention, a sealing groove is circumferentially provided on one side of the second cover body close to the first cavity, and a first sealing member is installed in the sealing groove; when the second cover body is fixedly connected to the bottom wall, the upper end face of the first sealing member abuts against the bottom wall, and the lower end face of the first sealing member abuts against the sealing groove.

[0018] Compared with the existing technology, the technical effect achieved by adopting this technical solution is: this solution improves the sealing performance when the second cover body and the bottom wall are matched by setting a sealing groove in the second cover body and installing a first sealing member in the sealing groove, thereby preventing water vapor from entering the second cavity and causing damage to the drive component, thereby extending the service life of the drive component.

[0019] In one example of the present invention, the thermal management system also includes: a low-pressure drive interface, which is arranged on a side of the shell close to the four-way valve installation cavity; wherein the low-pressure drive interface is electrically connected to the drive assembly, and the low-pressure drive interface is electrically connected to the control board.

[0020] Compared with the existing technology, the technical effect achieved by adopting this technical solution is: this solution realizes unified control of the four-way valve mechanism and the heating mechanism by the control board by setting an electrical connection between the drive component and the low-voltage drive interface, and setting an electrical connection between the low-voltage drive interface and the control board, thereby reducing the manufacturing cost of the thermal management system.

[0021] In one example of the present invention, a second mounting groove and a third cover for mounting a heating mechanism are provided on the top of the shell, and the third cover is detachably mounted on the top of the second mounting groove to form a first accommodating cavity; the heating mechanism includes: at least one electric heating tube, at least one electric heating tube is mounted in the second mounting groove, and at least one electric heating tube is meandering and horizontally arranged; a first partition plate, the first partition plate is arranged on the outside of at least one electric heating tube; wherein, the second mounting groove is also provided with a water inlet for connecting water to the heating mechanism.

[0022] Compared with the existing technology, the technical effect achieved by adopting this technical solution is as follows: this solution facilitates the installation of at least one electric heating tube by setting a third cover body that can be detachably installed on the top of the second installation groove; further, by setting the first partition plate on the outside of at least one electric heating tube, the heat exchange efficiency of the heating mechanism is improved.

[0023] In one embodiment of the present invention, the evaporation mechanism includes: an evaporation base plate, the evaporation base plate is arranged on the top of the third cover body; a second partition plate, the second partition plate is arranged between the evaporation base plate and the third cover body, and the second partition plate is fixedly connected to the third cover body; a plurality of evaporation intermediate plates, the plurality of evaporation intermediate plates are arranged on the top of the evaporation base plate, the plurality of evaporation intermediate plates are vertically stacked, and the plurality of evaporation intermediate plates are fixedly connected; an evaporation top plate, the evaporation top plate is arranged on the top of the plurality of evaporation intermediate plates; a water outlet, the water outlet is arranged on the top of the evaporation top plate; a refrigerant inlet, the refrigerant inlet is arranged on the top of the evaporation top plate and is adjacent to the water outlet; a refrigerant outlet, the refrigerant outlet is arranged on the top of the evaporation top plate and is opposite to the refrigerant inlet; wherein, an evaporation through hole for connecting the evaporation mechanism and the four-way valve is provided at one end of the third cover body located outside the second mounting groove, the second partition plate is provided with a first through hole, and the plurality of evaporation intermediate plates are provided with a third through hole, and the evaporation through hole, the first through hole and the third through hole are connected.

[0024] Compared with the existing technology, the technical effect achieved by adopting this technical solution is as follows: this solution arranges an evaporation mechanism including an evaporation bottom plate, a second partition plate, multiple evaporation middle plates, an evaporation top plate, a water outlet, a refrigerant inlet and a refrigerant outlet, and an end of the third cover body located outside the second mounting groove is provided with an evaporation through hole for connecting the evaporation mechanism and the four-way valve, the second partition plate is provided with a first through hole, the evaporation bottom plate is provided with a second through hole, and the multiple evaporation middle plates are provided with a third through hole, and the evaporation through hole, the first through hole, the second through hole and the third through hole are interconnected, thereby improving the heat exchange efficiency of the evaporation mechanism.

[0025] In one example of the present invention, the drive assembly includes: a drive motor, which is provided with a drive shaft for providing driving force; a gear assembly, which is transmission-connected to the drive motor; and a drive worm, one end of which is connected to the drive shaft and the other end is connected to the gear assembly.

[0026] Compared with the existing technology, the technical effect achieved by adopting this technical solution is: this solution transmits the driving force of the driving motor to the valve core by setting a driving motor, a driving worm and a gear assembly to cooperate with each other, thereby controlling the rotation of the valve core to change the flow direction of the fluid in multiple ports.

[0027] After adopting the technical solution of the present invention, the following technical effects can be achieved: The present invention provides a vehicle thermal management system that interconnects a housing, a heating mechanism, an evaporation mechanism, a four-way valve mechanism, and a control panel to form an integrated body within the housing. The integrated body is then controlled uniformly by the control panel, thereby achieving a modularized thermal management system. This simplifies the structure of the entire thermal management system and improves the reliability and integration of the vehicle thermal management system. Furthermore, during installation, only the entire integrated body needs to be installed in the vehicle, thereby reducing the difficulty of installing the thermal management system. Furthermore, the heating mechanism, evaporation mechanism and four-way valve mechanism are integrated into the housing, which reduces the complex piping and wiring connections inside the thermal management system, thereby saving the cost of piping materials; at the same time, it also reduces the installation space required for the heating mechanism, evaporation mechanism and four-way valve mechanism in the vehicle, thereby saving the design cost of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings to be used in describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive efforts. Figure 1 A three-dimensional diagram of a vehicle thermal management system provided by an embodiment of the present invention; Figure 2 This is one of the structural schematic diagrams of a vehicle thermal management system provided by an embodiment of the present invention; Figure 3 for Figure 2 Cross-sectional view along the middle edge of PP; Figure 4 for Figure 3 Enlarged view of middle area A; Figure 5 This is a second structural diagram of a vehicle thermal management system provided by an embodiment of the present invention; Figure 6 for Figure 5 Enlarged view of middle area B; Figure 7 A third structural diagram of a vehicle thermal management system provided by an embodiment of the present invention; Figure 8 A schematic structural diagram of a second cover of a vehicle thermal management system provided by an embodiment of the present invention; Figure 9 A schematic structural diagram of a first cover of a thermal management system for a vehicle provided by an embodiment of the present invention; Figure 10 A fourth structural diagram of a vehicle thermal management system provided by an embodiment of the present invention; Figure 11 A fifth structural diagram of a vehicle thermal management system provided by an embodiment of the present invention; Figure 12 A schematic structural diagram of a housing of a vehicle thermal management system provided by an embodiment of the present invention; Figure 13 A sixth structural diagram of a vehicle thermal management system provided by an embodiment of the present invention; Figure 14 for Figure 13 Enlarged view of middle area C; Figure 15 The seventh structural diagram of a vehicle thermal management system provided by an embodiment of the present invention; Figure 16 for Figure 15 Magnified view of area D in the middle.

[0029] Description of reference numerals: 100, housing; 110, first accommodating chamber; 120, second accommodating chamber; 121, control board; 130, third cover; 131, evaporation through hole; 140, fourth cover; 150, low-pressure drive interface; 160, high-pressure drive interface; 200, four-way valve mounting chamber; 210, first cover; 211, arc-shaped protrusion; 211a, first limiting portion; 211b, second limiting portion; 220, shaft hole; 23 0, second cover; 231, first mounting groove; 232, first sealing member; 233, first terminal; 234, second terminal; 240, first flow channel; 250, second flow channel; 260, third flow channel; 261, first interface; 270, fourth flow channel; 271, second interface; 300, heating mechanism; 310, electric heating pipe; 320, first partition plate; 330, water inlet; 400, evaporation mechanism ; 410, evaporation bottom plate; 411, second through hole; 420, second partition plate; 421, first through hole; 430, evaporation middle plate; 431, third through hole; 440, evaporation top plate; 441, water outlet; 442, refrigerant inlet; 443, refrigerant outlet; 500, four-way valve mechanism; 510, valve core; 511, positioning protrusion; 512, first port; 513, third port; 514, fourth port ; 520, drive assembly; 521, drive motor; 522, drive worm; 530, valve stem shaft; 540, bushing; 550, sealing ring; 600, output gear; 700, first transmission gear set; 710, first rotating shaft; 720, first transmission gear; 730, second transmission gear; 800, second transmission gear set; 810, second rotating shaft; 820, third transmission gear; 830, fourth transmission gear. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0031] like Figures 1 to 16 As shown, the present invention provides a vehicle thermal management system, which includes a housing 100, a heating mechanism 300, an evaporation mechanism 400, a four-way valve mechanism 500 and a control board 121. Specifically, the housing 100 is made of aluminum and is provided with a first accommodating chamber, a second accommodating chamber 120 and a four-way valve installation chamber 200. Figure 1As shown, the heating mechanism 300 is disposed in the first accommodating chamber for heating water. The evaporation mechanism 400 is disposed on the top of the heating mechanism 300 and is fixedly connected to the heating mechanism 300 (in this embodiment, the evaporation mechanism 400 is fixed to the top of the heating mechanism 300 by welding. Compared with the prior art method of fixing the evaporation mechanism 400 with multiple screws, the present embodiment uses welding to omit the screw design, thereby reducing the design cost of the evaporation mechanism 400. During the installation process of the evaporation mechanism 400, there is no need to fix multiple screws one by one, saving time and cost during the installation process of the evaporation mechanism 400). The four-way valve mechanism 500 is disposed in the four-way valve installation chamber 200, and the control board 121 is disposed in the second accommodating chamber 120. The control board 121 is electrically connected to the heating mechanism 300 and the four-way valve mechanism 500. The housing 100, the heating mechanism 300, the evaporation mechanism 400, the four-way valve mechanism 500, and the control board 121 are interconnected to form an integrated body.

[0032] Specifically, the present invention connects the housing 100, the heating mechanism 300, the evaporation mechanism 400, the four-way valve mechanism 500 and the control board 121 to form an integrated body in the housing 100, and performs unified control through the control board 121 (e.g., Figure 1 As shown, the control board 121 of this embodiment is a PCB board, the second accommodating cavity 120 is arranged at the bottom of the first accommodating cavity, the bottom wall of the first accommodating cavity is provided with a third mounting groove, and the PCB board is installed in the third mounting groove in a horizontal state, thereby realizing a modular setting of the thermal management system, making the structure of the entire thermal management system more concise, and improving the reliability and integration of the vehicle thermal management system; and during installation, it is only necessary to install the entire integrated body into the vehicle, thereby reducing the installation difficulty of the thermal management system during the installation process.

[0033] Furthermore, in conventional thermal management systems, the heater and four-way valve are separate components, typically requiring one circuit board to control the heater and another to control the four-way valve. This requires the design of two circuit boards. In this embodiment, a control board 121 is provided that is electrically connected to the heating mechanism 300 and the drive assembly for driving the four-way valve mechanism 500, providing unified control of the heating mechanism 300 and the four-way valve mechanism 500, thereby reducing the manufacturing cost of the thermal management system.

[0034] More specifically, the heating mechanism 300, the evaporation mechanism 400 and the four-way valve mechanism 500 are integrated into the housing 100, thereby reducing the complex piping and wiring connections inside the thermal management system, thereby saving the cost of piping materials; at the same time, it also reduces the installation space required for the heating mechanism 300, the evaporation mechanism 400 and the four-way valve mechanism 500 in the vehicle, thereby saving the design cost of the vehicle.

[0035] In one embodiment provided by the present invention, the evaporation mechanism 400 is welded to the top of the heating mechanism 300, and the second accommodating chamber 120 is provided with a second opening on a side away from the first accommodating chamber. The housing 100 further includes a fourth cover 140, which is connected to the housing 100 in a detachable manner (such as snap-fitting or screwing) to cover the second opening and seal the control board 121 in the second accommodating chamber 120. In this embodiment, the fourth cover 140 is connected to the housing 100 in a screw-fitting manner (such as Figures 1 to 3 shown).

[0036] Further, such as Figures 5 to 10 As shown, the four-way valve installation cavity 200 includes a first cavity and a second cavity arranged adjacent to each other, and the four-way valve mechanism 500 includes a valve core 510, a drive assembly 520, and a valve stem shaft 530. Specifically, the valve core 510 is installed in the first cavity and is provided with four through ports. The drive assembly 520 is installed in the second cavity and is electrically connected to the control board 121. The drive assembly 520 is used to drive the valve core 510 to rotate to change the flow direction of the fluid in the four through ports. One end of the valve stem shaft 530 is connected to the valve core 510, and the other end is transmission-connected to the drive assembly 520. An axial hole 220 for the valve stem shaft 530 to pass through is provided between the first cavity and the second cavity, so that one end of the valve stem shaft 530 is located in the first cavity and the other end is located in the second cavity.

[0037] Specifically, this solution improves the convenience of installation by providing a first cavity and a second cavity to install the valve core 510 and the drive assembly 520 in separate cavities.

[0038] like Figures 5 to 10As shown, four openings are evenly arranged along the circumference of the valve core 510. In a clockwise direction, the four openings are the first opening 512, the second opening (not shown), the third opening 513, and the fourth opening 514. It should be noted that the second opening (not shown) is located opposite the fourth opening 514, and the first opening 512 communicates with the fourth opening 514, while the third opening 513 communicates with the second opening (not shown). The first cavity is evenly arranged along the circumference of the first cavity, corresponding to the four openings. These four channels include the first flow channel 240, the second flow channel 250, the third flow channel 260, and the fourth flow channel 270. The first flow channel 240 communicates with the first accommodating chamber, and the second flow channel 250 communicates with the evaporation mechanism 400. Specifically, the second flow channel 250 is connected to the evaporation through hole 131, the first through hole 421, the second through hole 411, and the third through hole 431 from bottom to top to realize the transportation of the refrigerant medium. As shown in the figure, the first cavity is also provided with a first interface 261 for the third flow channel 260 to communicate with the outside world, and a second interface 271 for the fourth flow channel 270 to communicate with the outside world.

[0039] Further, such as Figures 7 to 14 As shown, the four-way valve mechanism 500 includes a sleeve 540 and a sealing ring 550. Specifically, the sleeve 540 is sleeved on the outside of the valve stem shaft 530 to allow the valve stem shaft 530 to rotate with the shaft hole 220. The sealing ring 550 is sleeved on the outside of the valve stem shaft 530 and is located between the sleeve 540 and the valve core 510.

[0040] Specifically, this solution provides a shaft sleeve 540 to achieve a rotational connection between the valve stem shaft 530 and the shaft hole 220, thereby reducing the friction between the valve stem shaft 530 and the shaft hole 220, thereby extending the service life of the valve stem shaft 530; further, by providing a sealing ring 550, dynamic sealing is achieved between the valve stem shaft 530 and the shaft hole 220 during the rotation of the valve core 510, thereby improving the sealing performance.

[0041] Further, such as Figures 3 to 14 As shown, the first cavity is arranged at the top of the second cavity, and the top of the first cavity is provided with a first opening. The four-way valve mechanism 500 further includes a first cover 210 and a second cover 230. Specifically, the first cover 210 is detachably mounted on the top of the first cavity to cover the first opening, and the second cover 230 is detachably connected to the bottom wall of the first cavity, and the second cavity is formed between the second cover 230 and the bottom wall. Among them, the second cover 230 is provided with a first mounting groove 231 on the side close to the first cavity, and the drive assembly 520 is mounted in the first mounting groove 231.

[0042] Specifically, on the first aspect, this solution provides a first cover body 210 that can be detachably installed on the top of the first cavity, making it convenient for maintenance personnel to disassemble and assemble the first cover body 210, thereby improving the convenience of inspecting the valve core 510; on the second aspect, the second cover body 230 is detachably connected to the bottom wall of the first cavity, making it convenient for maintenance personnel to disassemble and assemble the second cover body 230, thereby improving the convenience of inspecting the drive assembly 520.

[0043] In an embodiment provided by the present invention, the first cover 210 is mounted on the top of the first cavity in a snap-fit manner, and the second cover 230 is connected to the bottom wall in a snap-fit manner.

[0044] In another embodiment provided by the present invention, Figure 3 and Figure 4 As shown, the first cover 210 is installed on the top of the first cavity in a screw connection manner, and the second cover 230 is connected to the bottom wall in a screw connection manner, or the second cover 230 is connected to the bottom wall in the form of an edge ring.

[0045] Further, such as Figures 5 to 10 As shown, a first limiting portion 211a and a second limiting portion 211b are provided on the side of the first cover body 210 close to the first cavity, and a positioning protrusion 511 is provided on the top of the valve core 510. When the first cover body 210 is installed on the top of the first cavity and the driving assembly 520 drives the valve core 510 to rotate, the positioning protrusion 511 moves between the first limiting portion 211a and the second limiting portion 211b.

[0046] Specifically, this solution achieves precise control of the rotation angle of the valve core 510 by setting a positioning protrusion 511 to cooperate with the first limit part 211a and the second limit part 211b, and performs hard stop protection on the valve core 510 between the first limit part 211a and the second limit part 211b.

[0047] like Figures 5 to 10 As shown, a circular arc-shaped protrusion 211 is provided on one side of the first cover body 210 close to the first cavity, and the circular arc-shaped protrusion 211 is provided with a second opening, and the two ends of the second opening are respectively a first limiting portion 211a and a second limiting portion 211b. When the first cover body 210 is installed on the top of the first cavity, the positioning protrusion 511 is located in the second opening. When the driving assembly 520 drives the valve core 510 to rotate, the positioning protrusion 511 is limited to rotate between the first limiting portion 211a and the second limiting portion 211b, and the valve core 510 forms a 90° back and forth limited rotation.

[0048] Further, such as Figures 3 to 10As shown, a sealing groove is circumferentially provided on one side of the second cover body 230 close to the first cavity, and a first sealing member 232 is installed in the sealing groove. When the second cover body 230 is fixedly connected to the bottom wall, the upper end surface of the first sealing member 232 abuts against the bottom wall, and the lower end surface of the first sealing member 232 abuts against the sealing groove.

[0049] Specifically, this solution provides a sealing groove in the second cover 230 and installs a first sealing member 232 in the sealing groove to improve the sealing performance when the second cover 230 cooperates with the bottom wall, thereby preventing water vapor from entering the second cavity and damaging the drive assembly 520, thereby extending the service life of the drive assembly 520.

[0050] Further, Figures 12 to 16 As shown, the thermal management system further includes a low-voltage drive interface 150. Specifically, the low-voltage drive interface 150 is disposed on a side of the housing 100 near the four-way valve mounting cavity 200. The low-voltage drive interface 150 is electrically connected to the drive assembly 520, and the low-voltage drive interface 150 is electrically connected to the control board 121. This enables the control board 121 to uniformly control the four-way valve mechanism 500 and the heating mechanism 300, reducing the manufacturing cost of the thermal management system.

[0051] Further, such as Figures 12 to 16 As shown, a first wiring terminal 233 is further provided on the side of the second cover body 230 away from the first cavity; wherein, the end of the first wiring terminal 233 away from the second cover body 230 is connected to the low-voltage drive interface 150 in a plug-in manner to realize the electrical connection between the drive component 520 and the low-voltage drive interface 150; a second wiring terminal 234 is welded on the side of the control board 121 away from the first cavity, and the second wiring terminal 234 is connected to the second cover body 230 in a plug-in manner to realize the electrical connection between the drive component 520 and the control board 121, as well as the electrical connection between the low-voltage drive interface 150 and the control board 121.

[0052] Specifically, in the prior art, the heater and four-way valve of the thermal management system are separately configured, requiring the design of two circuit boards and, consequently, two low-voltage interfaces. In this embodiment, a first terminal 233 is provided to electrically connect the drive assembly 520 and the low-voltage drive interface 150, and a second terminal 234 is provided to electrically connect the drive assembly 520 to the control board 121, and the low-voltage drive interface 150 to the control board 121. Thus, only one low-voltage drive interface 150 needs to be provided to connect to the drive assembly 520 to achieve unified control of the heating mechanism 300 and the four-way valve mechanism 500. This enables unified control of the four-way valve mechanism 500 and the heating mechanism 300 by the control board 121, thereby reducing the manufacturing cost of the thermal management system.

[0053] Figures 12 to 16As shown, a high-voltage drive interface 160 electrically connected to the control board 121 is further provided at a position adjacent to the low-voltage drive interface of the housing 100 to facilitate connection and control of the external control system and the thermal management system.

[0054] Further, such as Figures 1 to 11 As shown, the top of the housing 100 is provided with a second mounting groove for mounting the heating mechanism 300 and a third cover 130. The third cover 130 is removably mounted on the top of the second mounting groove to form a first accommodating chamber. The heating mechanism 300 includes at least one electric heating pipe 310 and a first partition plate 320. Specifically, the at least one electric heating pipe 310 is mounted in the second mounting groove, and the at least one electric heating pipe 310 is arranged in a zigzag and horizontal manner. The first partition plate 320 is disposed outside the at least one electric heating pipe 310. The second mounting groove is also provided with a water inlet 330 for connecting water to the heating mechanism 300.

[0055] Specifically, this solution facilitates the installation of at least one electric heating tube 310 by setting a third cover body 130 that can be detachably installed on the top of the second installation groove; further, by setting the first partition plate 320 on the outside of at least one electric heating tube 310, the heat exchange efficiency of the heating mechanism 300 is improved.

[0056] Further, such as Figures 1 to 11As shown, the evaporation mechanism 400 includes an evaporation base plate 410, a second partition plate 420, a plurality of evaporation intermediate plates 430, an evaporation top plate 440, a water outlet 441, a refrigerant inlet 442, and a refrigerant outlet 443. Specifically, the evaporation base plate 410 and the second partition plate 420 are arranged between the evaporation base plate 410 and the third cover 130, and the second partition plate 420 is fixedly connected to the third cover 130 (in this embodiment, the second partition plate 420 and the third cover 130 are fixedly connected by brazing), the plurality of evaporation intermediate plates 430 are arranged on the top of the evaporation base plate 410, the plurality of evaporation intermediate plates 430 are vertically stacked, and the plurality of evaporation intermediate plates 430 are fixedly connected (in this embodiment, the plurality of evaporation intermediate plates 430 are fixedly connected to form a whole by brazing), the evaporation top plate 440 is arranged on the top of the plurality of evaporation intermediate plates 430, the water outlet 441 is arranged on the evaporation base plate 410, and the refrigerant outlet 443 is arranged on the evaporation base plate 410. At the top of the top plate 440, the refrigerant inlet 442 is arranged at the top of the evaporation top plate 440 and is adjacent to the water outlet 441, and the refrigerant outlet 443 is arranged at the top of the evaporation top plate 440 and is opposite to the refrigerant inlet 442; wherein, the third cover body 130 is located at one end outside the second mounting groove and is provided with an evaporation through hole 131 for connecting the evaporation mechanism 400 and the four-way valve, the second partition plate 420 is provided with a first through hole 421, the evaporation bottom plate 410 is provided with a second through hole 411, and multiple evaporation intermediate plates 430 are provided with a third through hole 431, and the evaporation through hole 131, the first through hole 421, the second through hole 411 and the third through hole 431 are connected to each other.

[0057] Specifically, this solution provides an evaporation mechanism 400 including an evaporation bottom plate 410, a second partition plate 420, multiple evaporation middle plates 430, an evaporation top plate 440, a water outlet 441, a refrigerant inlet 442 and a refrigerant outlet 443, and the third cover body 130 is located at one end outside the second mounting groove and is provided with an evaporation through hole 131 for connecting the evaporation mechanism 400 and the four-way valve, the second partition plate 420 is provided with a first through hole 421, the evaporation bottom plate 410 is provided with a second through hole 411, and the multiple evaporation middle plates 430 are provided with a third through hole 431. The evaporation through hole 131, the first through hole 421, the second through hole 411 and the third through hole 431 are connected to each other, thereby improving the heat exchange efficiency of the evaporation mechanism 400.

[0058] Furthermore, the second partition plate 420 is installed between the evaporation base plate 410 and the third cover 130 by welding to achieve a heat insulation effect. Figure 11 As shown, the second partition plate 420 is set to a hollow shape, which reduces the contact area between the evaporation base plate 410 and the third cover body 130, so that when the evaporation mechanism 400 is in the cooling state, the heat in the heating mechanism 300 is reduced and transferred to the evaporation mechanism 400, thereby improving the cooling effect of the coolant in the evaporation mechanism 400.

[0059] Further, such as Figures 7 to 10 As shown, the drive assembly 520 includes a drive motor 521, a gear assembly and a drive worm 522. Specifically, the drive motor 521 is provided with a drive shaft for providing driving force, the gear assembly is in transmission connection with the drive motor 521, and one end of the drive worm 522 is connected to the drive shaft and the other end is connected to the gear assembly.

[0060] Specifically, this solution arranges a drive motor 521, a drive worm 522 and a gear assembly to cooperate with each other to transmit the driving force of the drive motor 521 to the valve core 510, control the rotation of the valve core 510, and change the flow direction of the fluid in multiple ports.

[0061] like Figure 10 As shown, the gear assembly includes an output gear 600 and a reduction gear set. The reduction gear set is connected to the worm 522. The output gear 600 is connected to the reduction gear set and the valve core 510 through the valve stem shaft 530 to drive the valve core 510 to rotate and change the flow direction of the fluid in multiple ports.

[0062] like Figure 10 As shown, the reduction gear set includes a first transmission gear set 700 and a second transmission gear set 730. The first transmission gear set 700 includes a first rotating shaft 710 and a first transmission gear 720 and a second transmission gear 730 sleeved on the outside of the first rotating shaft 710. The first transmission gear 720 is meshed with the driving worm 522, and the second transmission gear 730 is disposed at the bottom of the first transmission gear 720. The second transmission gear 730 is integrally arranged with the first transmission gear 720. The second transmission gear set 730 includes a second rotating shaft 810 and a third transmission gear 820 and a fourth transmission gear 830 sleeved on the outside of the second rotating shaft 810. The third transmission gear 820 is meshed with the second transmission gear 730, and the fourth transmission gear 830 is meshed with the output gear 600. The third transmission gear 820 is disposed at the bottom of the fourth transmission gear 830. The third transmission gear 820 is integrally arranged with the fourth transmission gear 830.

[0063] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be based on the scope defined by the claims.

Claims

1. A thermal management system for a vehicle, characterized in that: The thermal management system comprises: A housing (100), wherein the housing (100) is provided with a first accommodating chamber (110), a second accommodating chamber (120), and a four-way valve installation chamber (200); a heating mechanism (300), the heating mechanism (300) being arranged in the first accommodating chamber (110) and being used to heat water; an evaporation mechanism (400), the evaporation mechanism (400) being arranged on top of the heating mechanism (300) and fixedly connected to the heating mechanism (300); A four-way valve mechanism (500), the four-way valve mechanism (500) being arranged in the four-way valve installation cavity (200); a control board (121), the control board (121) being disposed in the second accommodating chamber (120), the control board (121) being electrically connected to the heating mechanism (300) and the four-way valve mechanism (500); The housing (100), the heating mechanism (300), the evaporation mechanism (400), the four-way valve mechanism (500), and the control panel (121) are interconnected to form an integrated body.

2. The thermal management system according to claim 1, characterized in that The four-way valve installation cavity (200) comprises a first cavity and a second cavity arranged adjacent to each other, and the four-way valve mechanism (500) comprises: a valve core (510), the valve core (510) being installed in the first cavity, and the valve core (510) being provided with a plurality of openings; a drive assembly (520), the drive assembly (520) being installed in the second cavity and electrically connected to the control board (121), the drive assembly (520) being used to drive the valve core (510) to rotate so as to change the flow direction of the fluid in the plurality of ports; a valve stem shaft (530), one end of the valve stem shaft (530) being connected to the valve core (510), and the other end of the valve stem shaft (530) being drivingly connected to the drive assembly (520); An axial hole (220) for the valve stem shaft (530) to pass through is provided between the first cavity and the second cavity, so that one end of the valve stem shaft (530) is located in the first cavity and the other end is located in the second cavity.

3. The thermal management system according to claim 2, characterized in that: The four-way valve mechanism (500) comprises: a shaft sleeve (540), the shaft sleeve (540) being sleeved on the outside of the valve stem shaft (530) so as to enable the valve stem shaft (530) to rotatably engage with the shaft hole (220); A sealing ring (550) is sleeved on the outside of the valve stem shaft (530) and located between the shaft sleeve (540) and the valve core (510).

4. The thermal management system according to claim 2, characterized in that: The first cavity is arranged at the top of the second cavity, and a first opening is provided at the top of the first cavity. The four-way valve mechanism (500) further comprises: a first cover (210), the first cover (210) being detachably mounted on the top of the first cavity to cover the first opening; a second cover (230), the second cover (230) being detachably connected to the bottom wall of the first cavity, the second cavity being formed between the second cover (230) and the bottom wall; A first installation groove (231) is provided on a side of the second cover (230) close to the first cavity, and the drive assembly (520) is installed in the first installation groove (231).

5. The thermal management system according to claim 4, characterized in that: A first limiting portion (211a) and a second limiting portion (211b) are provided on a side of the first cover body (210) close to the first cavity; A positioning protrusion (511) is provided on the top of the valve core (510); When the first cover (210) is installed on the top of the first cavity and the driving assembly (520) drives the valve core (510) to rotate, the positioning protrusion (511) moves between the first limiting portion (211a) and the second limiting portion (211b).

6. The thermal management system according to claim 5, characterized in that: A sealing groove is provided along the circumferential direction on one side of the second cover body (230) close to the first cavity, and a first sealing member (232) is installed in the sealing groove; When the second cover (230) is fixedly connected to the bottom wall, the upper end surface of the first sealing member (232) abuts against the bottom wall, and the lower end surface of the first sealing member (232) abuts against the sealing groove.

7. The thermal management system according to claim 4, characterized in that: The thermal management system further comprises: a low-pressure drive interface (150), the low-pressure drive interface (150) being arranged on a side of the housing (100) close to the four-way valve installation cavity (200); The low-voltage drive interface (150) is electrically connected to the drive assembly (520), and the low-voltage drive interface (150) is electrically connected to the control board (121).

8. The thermal management system according to any one of claims 1 to 7, characterized in that: The top of the housing (100) is provided with a second mounting groove for mounting the heating mechanism (300) and a third cover (130), and the third cover (130) is detachably mounted on the top of the second mounting groove to form the first accommodating cavity (110); The heating mechanism (300) comprises: At least one electric heating tube (310), the at least one electric heating tube (310) being installed in the second installation groove, and the at least one electric heating tube (310) being distributed in a meandering manner and arranged horizontally; a first partition plate (320), the first partition plate (320) being arranged outside the at least one electric heating tube (310); The second installation groove is further provided with a water inlet (330) for receiving water into the heating mechanism (300).

9. The thermal management system according to claim 8, characterized in that: The evaporation mechanism (400) comprises: an evaporation base plate (410), the evaporation base plate (410) being arranged on top of the third cover body (130); a second partition plate (420), the second partition plate (420) being disposed between the evaporation base plate (410) and the third cover body (130), and the second partition plate (420) being fixedly connected to the third cover body (130); a plurality of evaporation intermediate plates (430), the plurality of evaporation intermediate plates (430) being arranged on top of the evaporation bottom plate (410), the plurality of evaporation intermediate plates (430) being stacked vertically, and the plurality of evaporation intermediate plates (430) being fixedly connected to each other; an evaporation top plate (440), the evaporation top plate (440) being arranged on top of the plurality of evaporation intermediate plates (430); a water outlet (441), the water outlet (441) being arranged on the top of the evaporation top plate (440); a refrigerant inlet (442), the refrigerant inlet (442) being arranged at the top of the evaporation top plate (440) and adjacent to the water outlet (441); a refrigerant outlet (443), the refrigerant outlet (443) being arranged at the top of the evaporation top plate (440) and being arranged opposite to the refrigerant inlet (442); The third cover (130) is provided with an evaporation through hole (131) at one end outside the second mounting groove for connecting the evaporation mechanism (400) and the four-way valve, the second partition plate (420) is provided with a first through hole (421), the evaporation bottom plate (410) is provided with a second through hole (411), and the plurality of evaporation intermediate plates (430) are provided with a third through hole (431), and the evaporation through hole (131), the first through hole (421), the second through hole (411) and the third through hole (431) are connected to each other.

10. The thermal management system according to claim 3, wherein: The driving assembly (520) includes: A drive motor (521), wherein the drive motor (521) is provided with a drive shaft for providing a driving force; a gear assembly, the gear assembly being in transmission connection with the drive motor (521); A driving worm (522), one end of the driving worm (522) is connected to the driving shaft, and the other end is connected to the gear assembly.

Images