Fluid electric four-way control valve for new energy automobile thermal management system

Abstract

The fluid electric four-way control valve for the new energy automobile thermal management system comprises a valve element, a valve body, a sealing assembly and a transmission mechanism, two inwards-concave arc-shaped fluid communication grooves are symmetrically formed in the outer side wall of the valve element, and the outer edges of the fluid communication grooves further extend to be provided with sealing assembly clamping edges; the sealing assembly comprises a valve element sealing ring and a valve element sealing ring, the middle of the valve element is further provided with a big-end-down two-section type through hole, the two sides of the valve element are each provided with a deep groove communicated with the through hole, the bottom of the valve body is further connected with an ejector rod in a telescopic mode, and when the ejector rod ascends, the ejector rod is inserted into the through hole and extrudes the valve elements on the two sides. And the valve element is expanded in the valve cavity, and the valve element sealing ring is tightly attached to the inner wall of the cavity of the valve body. The valve is simpler in structure and better in sealing effect, and fluid flows more smoothly.

Description

Technical Field

[0001] The present invention relates to the field of fluid control technology, and in particular to a fluid electric four-way control valve for a thermal management system of a new energy vehicle. Background Art

[0002] As an important component of thermal management systems such as new energy vehicle air conditioning systems, battery cooling, and motor heat dissipation, the fluid electric four-way control valve has the function of controlling the flow and direction of the medium. The motor drives the transmission mechanism to make the valve core rotate in the valve body in a predetermined manner, thereby achieving the purpose of adjusting the flow and direction. In order to reduce fluid leakage between internal structures, sealing rings and sealing rings are generally provided between the valve core and the valve body interface. However, the existing sealing structure usually adopts a flange to connect the valve body. The structure is complex and the sealing effect is poor after long-term use. The internal leakage is relatively serious, affecting the normal use of the four-way ball valve. Summary of the Invention

[0003] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art and to provide a fluid electric four-way control valve for a thermal management system of a new energy vehicle with a simpler structure, better sealing effect and smoother fluid flow.

[0004] The technical solution of the present invention is: a fluid electric four-way control valve for a new energy vehicle thermal management system, comprising a valve core, a valve body, a sealing assembly and a transmission mechanism, wherein the valve core is arranged in a cavity of the valve body and is sealingly and slidingly connected to the valve body via a sealing assembly sleeved on the outside of the valve core; The outer wall of the valve core is symmetrically provided with two inwardly concave fluid communication grooves along its circumferential direction. The two fluid communication grooves are arc-shaped and respectively arranged corresponding to the two openings of the valve body, so that when the fluid communication grooves connect the two openings of the valve body, an arc-shaped channel is formed that is conducive to the rapid passage of fluid; A sealing assembly clamping edge is further extended from the outer edge of the fluid communication groove; The sealing assembly includes a valve core sealing ring and a valve core sealing ring, which are sequentially sleeved on the outer side of the sealing assembly clamping edge from the inside to the outside, and the valve core sealing ring is in contact with the inner wall of the cavity of the valve body; The outer peripheral edge of the valve core sealing ring is provided with a chamfer, the valve core sealing ring is an elastic sealing ring, the valve core sealing ring is a hard sealing ring, and the valve core sealing ring covers the valve core sealing ring; When the valve core rotates in the valve body to change the direction of fluid flow, the valve core squeezes the valve core sealing ring to generate elastic force, and the valve core sealing ring pushes the valve core sealing ring to fit tightly with the inner wall of the valve body cavity, thereby achieving sealing between the valve core and the valve body.

[0005] Furthermore, a through hole is provided in the middle of the valve core, and a deep groove is provided on both sides of the valve core to connect the through hole. The outer ends of the two deep grooves are respectively located at the intersection of the two sealing component clamping edges. The through hole and the bottom of the two deep grooves respectively pass through the bottom of the valve core. The bottom of the valve body is also telescopically connected to a push rod. When the push rod is raised, the push rod is inserted into the through hole and squeezes the valve cores on both sides, so that the valve core expands in the valve cavity and the valve core sealing ring fits tightly against the inner wall of the cavity of the valve body.

[0006] Furthermore, the through hole is composed of an upper hole and a lower hole, the inner diameter of the lower hole is larger than the inner diameter of the upper hole, the upper hole and the lower hole are connected by a frustum-shaped hole, the outer diameter of the push rod corresponds to the inner diameter of the large hole, when the valve core rotates, the push rod is located in the large hole, when the valve core stops rotating, the push rod extends and is inserted into the small hole to expand the valve core.

[0007] Furthermore, a valve body plugging cover is provided at the bottom of the valve body, and an electric cylinder is fixed to the bottom of the valve body plugging cover, and the piston rod of the electric cylinder is connected to the push rod.

[0008] Furthermore, the valve core is a valve core with a hollow interior and is provided with reinforcing ribs staggered horizontally and vertically.

[0009] Furthermore, the bottom of the valve body cover is provided with multiple circles of heat exchange ribs.

[0010] Furthermore, the transmission mechanism includes a motor, a worm, a worm gear, a pinion, a large gear and a valve core gear. When the worm gear synchronously drives the large gear to rotate, a spur gear is arranged above the worm gear and drives the pinion to rotate. A spur gear is arranged below the pinion and feedback drives the spur gear above the large gear to rotate. The large gear itself is driven by two sets of transmission forms: the worm and the pinion.

[0011] Furthermore, the valve body is provided with four openings at equal distances along its circumferential direction, and each of the openings forms a first liquid inlet, a first liquid outlet, a second liquid inlet and a second liquid outlet in sequence, and the first liquid inlet, the first liquid outlet, the second liquid inlet and the second liquid outlet are also respectively connected with fluid pipelines.

[0012] Furthermore, a valve body thrust block is provided on the top lower end surface of the valve body, a thrust block guide groove is provided on the upper end surface of the valve core, and the valve body thrust block is arranged in the thrust block guide groove.

[0013] Furthermore, a first channel side and a second channel side are respectively provided on both sides of the thrust block of the valve body. When the valve core is rotated to make the first channel side contact with the inner wall of the thrust block guide groove, the first liquid inlet is connected to the first liquid outlet, and the second liquid inlet is connected to the second liquid outlet; when the valve core is rotated to make the second channel side contact with the inner wall of the thrust block guide groove, the first liquid inlet is connected to the second liquid outlet, and the second liquid inlet is connected to the first liquid outlet.

[0014] The beneficial effects of the present invention are: the present invention has a simple structure and is easy to install. It replaces the traditional method of sealing the valve core by installing a flange on the valve body. It has a good sealing effect and is not easy to leak. The simplified structure makes the flow of fluid in the valve body smoother and the device is not easy to be damaged, thereby extending the service life of the electric ball valve. When the sealing effect is not good, it is only necessary to disassemble and replace the valve core sealing ring and the valve core sealing ring.

[0015] The two fluid communication grooves are arranged in an arc shape, so that when the fluid communication grooves are connected to the two openings of the valve body, a channel is formed that is conducive to the rapid passage of fluid, avoiding excessive flow resistance, and this structure can maximize the use of the space inside the valve core; In addition, a valve core structure and a push rod mechanism with an openable and closeable lower end are designed. When the valve core rotates, the push rod descends, and the valve core can rotate smoothly to change the flow direction of the fluid in the valve body. When the valve core stops rotating, the push rod rises and inserts into the through hole of the valve core and squeezes the valve core on both sides, so that the valve core expands in the valve cavity and the valve core sealing ring fits tightly with the inner wall of the valve body cavity. At this time, the valve core sealing ring is tightly pressed against the inner wall of the valve body cavity and cannot rotate, which can achieve locking and avoid leakage caused by misoperation. At the same time, when the sealing ring ages and loses some elasticity, this structure can also ensure that the valve core still has a high sealing performance to prevent leakage. The through hole is designed in two sections. When the push rod expands the valve core, the push rod is located in the small hole in the upper section of the through hole, that is, the middle part of the valve core, which can make the valve core expand more evenly on both sides, so that the core sealing ring and the inner wall of the valve body fit more closely; when the valve core rotates, the push rod is located in the large hole in the lower section of the through hole. At this time, the push rod also plays the role of the lower valve stem to ensure the stability of the valve core during rotation.

[0016] The valve core is hollowed out internally and is provided with reinforcing ribs staggered horizontally and vertically inside to improve the expansion performance of the valve core, so as to avoid the valve core material being too hard so that the push rod cannot smoothly push the valve core to expand. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a perspective view of the present invention; Figure 2 It is an inverted stereogram of the present invention; Figure 3 is a cross-sectional view of the present invention; Figure 4 It is a cross-sectional view of another direction of the present invention; Figure 5 It is a structural schematic diagram of the valve core in the present invention; Figure 6 It is a structural schematic diagram of the valve body in the present invention; Figure 7 It is a structural schematic diagram of the transmission mechanism of the present invention; Figure 8It is a structural schematic diagram of the transmission mechanism in another direction of the present invention; Figure 9 It is a structural diagram of another embodiment.

[0018] In the figure: valve core 1, valve body 2, sealing assembly 3, transmission mechanism 4, fluid connecting groove 5, sealing assembly clamping edge 6, valve core sealing ring 7, valve core sealing ring 8, motor 9, worm 10, worm gear 11, small gear 12, large gear 13, valve core gear 14, push rod 15, upper hole 16, lower hole 17, valve body plugging cover 18, electric cylinder 19, first liquid inlet 20, first liquid outlet 21, second liquid inlet 22, second liquid outlet 23, fluid pipeline 24, valve body thrust block 25, thrust block guide groove 26. DETAILED DESCRIPTION

[0019] The technical solution of the present invention will be further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0020] Combine Figure 1-8 As shown, a fluid electric four-way control valve for a thermal management system of a new energy vehicle includes a valve core 1, a valve body 2, a sealing assembly 3 and a transmission mechanism 4. The valve core 1 is arranged in the cavity of the valve body 2 and is sealed and slidably connected to the valve body 2 through the sealing assembly 3 sleeved on the outside of the valve core. The outer wall of the valve core 1 is symmetrically provided with two inwardly concave fluid communication grooves 5 along its circumferential direction. The two fluid communication grooves 5 are arc-shaped and are respectively arranged corresponding to the two openings of the valve body 2. When the fluid communication grooves 5 are connected to the two openings of the valve body 2, a channel is formed that facilitates the rapid passage of fluid, thereby avoiding excessive flow resistance. This structure can maximize the use of the space inside the valve core 1. The outer edge of the fluid communication groove 5 is further extended with a sealing component clamping edge 6; The sealing assembly 3 includes a valve core sealing ring 7 and a valve core sealing ring 8, which are sequentially sleeved on the outer side of the sealing assembly clamping edge 6 from the inside to the outside, and the valve core sealing ring 8 fits the inner wall of the cavity of the valve body 2; The outer peripheral edge of the valve core sealing ring 8 is provided with a chamfer to prevent the valve core sealing ring 8 from being subjected to excessive resistance when rotating with the valve core 1, thereby causing the valve core sealing ring 8 to deform; the valve core sealing ring 7 is an elastic sealing ring, and the valve core sealing ring 8 is a hard sealing ring. The valve core sealing ring 8 covers the valve core sealing ring 7 inside to prevent the elastic sealing ring from falling out, and the elastic valve core sealing ring 7 allows the valve core sealing ring 8 to expand and contract to a certain extent, thereby ensuring the tightness of the valve core sealing ring 8 and the inner wall of the valve body 2; When the valve core 1 rotates in the valve body 2 to change the flow direction of the fluid, the valve core 1 squeezes the valve core sealing ring 7 to generate elastic force, and the valve core sealing ring 7 pushes the valve core sealing ring 8 to fit tightly with the inner wall of the cavity of the valve body 2, thereby achieving sealing between the valve core 1 and the valve body 2; The transmission mechanism 4 includes a motor 9, a worm 10, a worm gear 11, a pinion 12, a large gear 13 and a valve core gear 14. When the worm gear 11 synchronously drives the large gear 13 to rotate, a spur gear is provided above the worm gear 11 and drives the pinion 12 to rotate. A spur gear is provided below the pinion 12 and feedback drives the spur gear above the large gear 13 to rotate. The large gear 13 itself is driven by two sets of transmission forms, namely the worm 10 and the pinion 12, which can reduce the loss of the output power of the motor 9 and make the entire transmission mechanism consume less energy when driving the valve core 1 to rotate.

[0021] In another embodiment, the output shaft of the motor 9 is connected to the worm 10, the worm 10 is connected to the worm wheel 11, the worm wheel 11 is connected to the pinion 12, the pinion 12 is connected to the large gear 13, the large gear 13 is connected to the valve core gear 14, the valve core gear 14 is connected to the input shaft of the valve core 1, and the worm 10 rotates synchronously with the output shaft of the motor 9; the worm wheel 11 is integrated with the upper spur gear and the lower worm gear, the diameter of the worm gear is larger than the diameter of the spur gear, the worm gear is meshed with the worm 10, and drives the upper spur gear to rotate synchronously; the bottom surface of the worm wheel 11 is fixedly connected It is connected to a large gear 13, which is formed by two spur gears, one above and one below. The diameter of the upper spur gear is larger than that of the lower spur gear. The large gear 13 rotates synchronously with the worm gear 11. The small gear 12 is also formed by two spur gears, one above and one below. The diameter of the lower spur gear is larger than that of the upper spur gear. The spur gear above the small gear 12 meshes with the spur gear above the worm 10 for transmission, and the spur gear below the small gear 12 meshes with the spur gear above the large gear 13 for transmission. The valve core gear 14 is fixedly connected to the input shaft of the valve core 1, driving the valve core 1 to rotate synchronously. The valve core gear 14 is a spur gear, which meshes with the spur gear below the large gear 13 for transmission. When it is necessary to rotate the valve core 1 to change the flow direction of the fluid, the motor 9 is started, the motor 9 drives the worm 10 to rotate, and the worm 10 drives the worm gear 11 to rotate, converting the vertical rotation of the output shaft of the motor 9 into the horizontal rotation of the worm 10; the worm gear 11 synchronously drives the large gear 13 to rotate, while the spur gear above the worm gear 11 drives the small gear 12 to rotate, and the spur gear below the small gear 12 feedback drives the spur gear above the large gear 13 to rotate; the spur gear below the large gear 13 drives the valve core gear 14 to rotate, and the valve core gear 14 drives the valve core 1 to rotate, so that the fluid connecting groove 5 on the valve core 1 corresponds to the different liquid inlets and outlets of the valve body 2 due to the rotation of the valve core 1, thereby changing the flow direction of the fluid in the valve body 2; By setting up a transmission mechanism 4 with multiple gears, the output power requirements of the motor 9 can be reduced, the size of the motor 9 itself can be reduced, and the volume of the entire transmission mechanism 4 can be reduced; and in the transmission process, the large gear 13 itself is subjected to two sets of transmission forms, namely the worm 10 and the small gear 12, which reduces the loss of the output power of the motor 9 and makes the entire transmission mechanism consume less energy when driving the valve core 1 to rotate.

[0022] In another embodiment, Figure 9 As shown, a through hole is provided in the middle of the valve core 1, and a deep groove communicating with the through hole is provided on both sides of the valve core 1. The outer ends of the two deep grooves are respectively located at the intersection of the two sealing component clamping edges 6. The through hole and the bottoms of the two deep grooves respectively pass through the bottom of the valve core 1. A push rod 15 is also telescopically connected to the bottom of the valve body 2. When the push rod 15 is raised, the push rod 15 is inserted into the through hole and squeezes the valve cores 1 on both sides, so that the valve core 1 expands in the valve cavity and the valve core sealing ring 8 is tightly fitted with the inner wall of the cavity of the valve body 2. When the valve core 1 rotates, the push rod 15 descends, and the valve core 1 can rotate smoothly to change the flow direction of the fluid in the valve body 2; when the valve core 1 stops rotating, the push rod 15 rises to expand the valve core 1. At this time, the valve core sealing ring 8 is tightly pressed against the inner wall of the cavity of the valve body 2 and cannot rotate, so it can be locked; at the same time, when the sealing ring ages and loses some elasticity, this structure can also ensure that the valve core 1 still has a high sealing performance to prevent leakage.

[0023] In another embodiment, Figure 9 As shown, the through hole consists of an upper hole 16 and a lower hole 17. The inner diameter of the lower hole 17 is larger than the inner diameter of the upper hole 16. The upper hole 16 and the lower hole 17 are connected by a frustum-shaped hole. The outer diameter of the push rod 15 corresponds to the inner diameter of the large hole. When the valve core 1 rotates, the push rod 15 is located in the large hole. The push rod 15 also acts as a lower valve stem to ensure the stability of the valve core 1 during rotation. When the valve core 1 stops rotating, the push rod 15 extends and inserts into the small hole to expand the valve core 1. In this way, when the push rod 15 expands the valve core 1, the push rod 15 is located in the middle part of the valve core 1, which can make the valve core 1 expand more evenly on both sides, so that the core sealing ring 8 fits more tightly with the inner wall of the valve body 2.

[0024] In another embodiment, combined Figure 2 and Figure 9 As shown, a valve body plugging cover 18 is further provided at the bottom of the valve body 2, and an electric cylinder 19 is fixed to the bottom of the valve body plugging cover 18. The piston rod of the electric cylinder 19 is connected to the push rod 15 to drive the push rod 15 to move up and down.

[0025] In another embodiment, Figure 9As shown, the valve core 1 is a hollow valve core 1 and is provided with horizontal and vertical staggered reinforcing ribs to improve the expansion performance of the valve core 1 to avoid the valve core 1 material being too hard so that the push rod 15 cannot smoothly push the valve core 1 to expand.

[0026] In another embodiment, Figure 2 As shown, the bottom of the valve body cover 18 is also provided with multiple circles of heat exchange ribs, which can improve the heat exchange capacity of the entire ball valve to prevent the internal temperature of the valve core 1 from being too high or too low.

[0027] In another embodiment, combined Figure 3 and Figure 4 As shown, the valve body 2 is provided with four openings equidistantly along its circumferential direction, and each of the openings forms a first liquid inlet 20, a first liquid outlet 21, a second liquid inlet 22 and a second liquid outlet 23 in sequence. The first liquid inlet 20, the first liquid outlet 21, the second liquid inlet 22 and the second liquid outlet 23 are also connected by fluid pipes 24 respectively.

[0028] Specifically, the first liquid inlet 20 and the second liquid inlet 22 are arranged opposite each other, the first liquid outlet 21 and the second liquid outlet 23 are arranged opposite each other, and the line connecting the first liquid inlet 20 and the second liquid inlet 22 is perpendicular to the line connecting the first liquid outlet 21 and the second liquid outlet 23.

[0029] In another embodiment, combined Figure 5 and Figure 6 As shown, a valve body thrust block 25 is provided on the top lower end surface of the valve body 2 , a thrust block guide groove 26 is provided on the upper end surface of the valve core 1 , and the valve body thrust block 25 is provided in the thrust block guide groove 26 .

[0030] Preferably, the thrust block guide groove 26 is a sector with a central angle of 120°, and the valve body thrust block 25 is a sector with a central angle of 30°.

[0031] Since the central angle of the sector of the thrust block guide groove 26 is 120° and the central angle of the sector of the valve body thrust block 25 is 30°, the valve core 1 can be rotated 90° in the forward or reverse direction to fully connect the liquid inlet and the liquid outlet, thereby realizing large fluid flow input and output. If the valve core 1 is rotated less than 90°, the liquid inlet and the liquid outlet are not completely connected in a facing direction, thereby realizing small fluid flow input and output, thereby effectively controlling the fluid flow output.

[0032] In another embodiment, combined Figure 3-6As shown, the valve body thrust block 25 is provided with a first channel side and a second channel side on both sides. When the valve core 1 is rotated to make the first channel side contact with the inner wall of the thrust block guide groove 26, the first liquid inlet 20 is connected with the first liquid outlet 21, and the second liquid inlet 22 is connected with the second liquid outlet 23; when the valve core 1 is rotated to make the second channel side contact with the inner wall of the thrust block guide groove 26, the first liquid inlet 20 is connected with the second liquid outlet 23, and the second liquid inlet 22 is connected with the first liquid outlet 21.

[0033] In another embodiment, combined Figure 1 、 Figure 7 and Figure 8 As shown, a control box is further provided on the periphery of the transmission mechanism 4. The transmission mechanism 4 is arranged in the cavity of the control box. The control box is fixedly connected to the upper end of the valve body 2 by fastening screws. The motor 9 in the control box is fixedly connected to the control box through the motor 9 bracket. The worm gear 11, the small gear 12, the large gear 13 and the valve core gear 14 are all rotatably connected to the control box through the connecting shaft. A sealing ring is also provided between the input shaft of the valve core 1 and the control box.

[0034] In another embodiment, the valve core sealing ring 7 is made of rubber, and the valve core sealing ring 8 is made of PTFE or PFA or other Teflon-modified high-temperature resistant resin.

Claims

1. A fluid electric four-way control valve for a new energy vehicle thermal management system, comprising a valve core (1), a valve body (2), a sealing assembly (3) and a transmission mechanism (4), characterized in that: The valve core (1) is arranged in the cavity of the valve body (2) and is sealingly and slidingly connected to the valve body (2) via a sealing component (3) sleeved on the outside of the valve core; The outer wall of the valve core (1) is symmetrically provided with two inwardly concave fluid communication grooves (5) along its circumferential direction. The two fluid communication grooves (5) are arc-shaped and are respectively arranged corresponding to the two openings of the valve body (2), so that when the fluid communication grooves (5) are connected to the two openings of the valve body (2), an arc-shaped channel is formed that is conducive to the rapid passage of fluid; A sealing assembly clamping edge (6) is also provided extending from the outer edge of the fluid communication groove (5); The sealing assembly (3) comprises a valve core sealing ring (7) and a valve core sealing ring (8), wherein the valve core sealing ring (7) and the valve core sealing ring (8) are sequentially sleeved on the outer side of the sealing assembly clamping edge (6) from the inside to the outside, and the valve core sealing ring (8) is in contact with the inner wall of the cavity of the valve body (2); The outer peripheral edge of the valve core sealing ring (8) is provided with a chamfer, the valve core sealing ring (7) is an elastic sealing ring, the valve core sealing ring (8) is a hard sealing ring, and the valve core sealing ring (8) covers the valve core sealing ring (7) inside; When the valve core (1) rotates in the valve body (2) to change the flow direction of the fluid, the valve core (1) squeezes the valve core sealing ring (7) to generate elastic force, and the valve core sealing ring (7) pushes the valve core sealing ring (8) to fit tightly with the inner wall of the cavity of the valve body (2), thereby achieving sealing between the valve core (1) and the valve body (2).

2. The electric four-way control valve for a fluid used in a thermal management system of a new energy vehicle according to claim 1, characterized in that: A through hole is provided in the middle of the valve core (1), and a deep groove communicating with the through hole is provided on both sides of the valve core (1). The outer ends of the two deep grooves are respectively located at the intersection of the two sealing component clamping edges (6). The bottoms of the through hole and the two deep grooves respectively pass through the bottom of the valve core (1). The bottom of the valve body (2) is also telescopically connected to a push rod (15). When the push rod (15) is raised, the push rod (15) is inserted into the through hole and squeezes the valve cores (1) on both sides, so that the valve core (1) expands in the valve cavity and the valve core sealing ring (8) is tightly fitted with the inner wall of the cavity of the valve body (2).

3. The electric four-way control valve for a fluid used in a thermal management system of a new energy vehicle as claimed in claim 2, characterized in that: The through hole is composed of an upper hole (16) and a lower hole (17). The inner diameter of the lower hole (17) is larger than the inner diameter of the upper hole (16). The upper hole (16) and the lower hole (17) are connected through a frustum-shaped hole. The outer diameter of the push rod (15) corresponds to the inner diameter of the large hole. When the valve core (1) rotates, the push rod (15) is located in the large hole. When the valve core (1) stops rotating, the push rod (15) stretches and inserts into the small hole to expand the valve core (1).

4. The electric four-way fluid control valve for a new energy vehicle thermal management system as claimed in claim 3, characterized in that: The bottom of the valve body (2) is also provided with a valve body plugging cover (18), and the bottom of the valve body plugging cover (18) is also fixed with an electric cylinder (19), and the piston rod of the electric cylinder (19) is connected to the push rod (15).

5. The electric four-way fluid control valve for a new energy vehicle thermal management system as claimed in claim 4, characterized in that: The valve core (1) is a valve core (1) with a hollow interior and is provided with reinforcing ribs staggered in transverse and longitudinal directions.

6. The electric four-way fluid control valve for a new energy vehicle thermal management system as claimed in claim 5, characterized in that: The bottom of the valve body plug cover (18) is also provided with multiple circles of heat exchange ribs.

7. The electric four-way fluid control valve for a new energy vehicle thermal management system as claimed in claim 6, characterized in that: The transmission mechanism (4) comprises a motor (9), a worm (10), a worm wheel (11), a pinion (12), a large gear (13) and a valve core gear (14). When the worm wheel (11) synchronously drives the large gear (13) to rotate, a spur gear is arranged above the worm wheel (11) and drives the small gear (12) to rotate. A spur gear is arranged below the small gear (12) and feedback drives the spur gear above the large gear (13) to rotate. The large gear (13) itself is subjected to two sets of transmission forms, namely, the worm wheel (10) and the pinion gear (12).

8. The electric four-way fluid control valve for a new energy vehicle thermal management system as claimed in claim 7, characterized in that: The valve body (2) is provided with four openings at equal intervals along its circumferential direction, each of the openings forming a first liquid inlet (20), a first liquid outlet (21), a second liquid inlet (22) and a second liquid outlet (23) in sequence, and the first liquid inlet (20), the first liquid outlet (21), the second liquid inlet (22) and the second liquid outlet (23) are also connected to a fluid pipeline (24) respectively.

9. The electric four-way fluid control valve for a new energy vehicle thermal management system as claimed in claim 8, characterized in that: The lower end surface of the top of the valve body (2) is provided with a valve body thrust block (25), the upper end surface of the valve core (1) is provided with a thrust block guide groove (26), and the valve body thrust block (25) is arranged in the thrust block guide groove (26).

10. The electric four-way fluid control valve for a new energy vehicle thermal management system according to claim 9, characterized in that: A first channel side edge and a second channel side edge are respectively provided on both sides of the valve body thrust block (25); when the valve core (1) is rotated to make the first channel side edge contact the inner wall of the thrust block guide groove (26), the first liquid inlet (20) is connected to the first liquid outlet (21), and the second liquid inlet (22) is connected to the second liquid outlet (23); when the valve core (1) is rotated to make the second channel side edge contact the inner wall of the thrust block guide groove (26), the first liquid inlet (20) is connected to the second liquid outlet (23), and the second liquid inlet (22) is connected to the first liquid outlet (21).

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