Pressure-type multi-passage solenoid valve

Abstract

The present invention discloses a pressure-sensitive multi-passage solenoid valve (100), comprising a valve core assembly (110), a valve seat assembly (120), a sealing unit (130), and a power unit (140), wherein the valve seat assembly (120) comprises a valve seat (121) and a valve cover (122), and a first receiving cavity (1211) is formed at the openings at both ends of the valve seat (121), and the valve cover (122) covers the openings, and the valve core assembly (110) and the sealing unit (130) are positioned in the first receiving cavity (1211), and the valve core assembly (110) comprises a valve core body (111) and a stopper member (112), and the valve core body (111) is arranged at intervals along its circumferential direction, and The valve core body (111) has a plurality of passages extending in the axial direction of the valve seat (121), a stopper member (112) connected to the valve core body (111), a sealing unit (130) including a sealing ring (131) and an elastic member (132), the sealing ring (131) having a plurality of through holes, the sealing ring (131) connected to the valve seat (121), the elastic member (132) connected to the valve core body (111) and the stopper member (112), a power unit (140) connected to the stopper member (112) to drive and rotate the valve core body (111), and at least one passage facing the through hole provided in the sealing ring (131) forms a flow path for the coolant. With this structure, the valve core body and the sealing ring are maintained in contact with each other, reducing the amount of coolant flowing through the circumferential gap between the valve core body and the valve seat, thereby improving the sealing performance of the valve body.

Description

[Technical Field]

[0001] The present application relates to the field of solenoid valves for new energy vehicles, and in particular to pressure-type multi-passage solenoid valves. [Background technology]

[0002] With the spread and development of new energy vehicles, pure electric vehicles are attracting a lot of attention.

[0003] The temperature control system inside a pure electric vehicle is interconnected through solenoid valves to achieve temperature control for the entire vehicle. Solenoid valves include multi-passage solenoid valves and integrated solenoid valves. Multi-passage solenoid valves require piping connections, while integrated solenoid valves have a valve core and valve body that can be rotated to form a coolant passage.

[0004] However, these two types of solenoid valves are prone to piping deterioration and wear of the valve core and valve body after long-term use, which can result in a decrease in the sealing performance of the entire solenoid valve and affect the temperature control effect of the vehicle. Summary of the Invention [Problem to be solved by the invention]

[0005] The present application provides a pressure-reducing multi-passage solenoid valve that improves the sealing performance of the solenoid valve and thereby enhances the temperature control effect of an automobile. [Means for solving the problem]

[0006] To achieve the above object, the present application adopts the following technical solution.

[0007] The present application provides a pressure-type multi-passage solenoid valve, which comprises a valve core assembly, a valve seat assembly, a sealing unit and a power unit. The valve seat assembly comprises a valve seat and a valve cover. The valve seat is a rotating member, and both ends of the valve seat are provided with: TwoAn opening is provided to form a first receiving cavity, a valve cover is provided to cover one of the two openings, and the valve core assembly and the sealing unit are both located in the first receiving cavity; The valve core assembly includes a valve core body and a stopper member, the shape of the outer wall of the valve core body matches the shape of the opening, the valve core body has a plurality of passages extending along the axial direction of the valve seat, the plurality of passages are spaced apart along the circumferential direction of the valve core body, and the stopper member is connected to the valve core body; The sealing unit includes a sealing ring and an elastic member, the shape of the sealing ring corresponds to the shape of the opening of the valve seat, the sealing ring is provided with a plurality of through holes, the sealing ring is connected to the opening of the valve seat on the side opposite to the valve cover, the elastic member is connected between the valve core body and the stopper member, and the valve core body is brought into contact with the sealing ring by the action of the elastic member; The power unit is connected to the stopper member and drives the valve core body to rotate relative to the valve seat, and positions at least one passage provided in the valve core body opposite a corresponding through-hole provided in the sealing ring to form a flow passage for the coolant.

[0008] In one possible embodiment, the elastic member is a spring, the spring extends along the axial direction of the valve core body, and a first end of the spring is connected to the side of the valve core body opposite the passage, and a second end of the spring is connected to the stopper member.

[0009] In one possible embodiment, the plurality of through holes have a sector-shaped cross section; The passage has a plurality of passage openings, each of which has a fan-shaped shape, and the area of ​​each passage opening is smaller than the area of ​​the through hole.

[0010] In one possible embodiment, a plurality of through holes are arranged at intervals along the circumferential direction of the sealing ring, with some of the through holes being arranged to face the passages.

[0011] In one possible embodiment, the valve core body comprises a first end cover, a valve core casing and a second end cover, which are connected in sequence along the axis of the valve seat to form a second accommodating cavity.

[0012] In one possible embodiment, a plurality of passages are located in the second receiving cavity, and both ends of the plurality of passages are respectively connected to a plurality of passage openings, and the plurality of passage openings are located in the first end cap.

[0013] In one possible embodiment, a plurality of positioning portions are provided in the center of the valve core casing, the positioning portions extend along the axial direction of the valve core casing, and openings are provided on the side of the positioning portions opposite to the first end cover; The stopper member has a plurality of positioning pins, which extend along the axial direction of the valve core body, and the positioning pins are inserted into the positioning portions.

[0014] In one possible embodiment, the stopper member further includes a first casing and a transmission member, the positioning pin and the transmission member are respectively connected to opposite sides of the first casing, the first casing is connected to the second end cover to form a third accommodating cavity, and the transmission member is connected to the power unit.

[0015] In one possible embodiment, an elastic member is located in the third receiving cavity, and both ends of the elastic member are abutted against the second end cap and the first casing, respectively.

[0016] In one possible embodiment, the power unit includes a second casing, a transmission gear unit, and a motor, the transmission gear unit and the motor are connected to the second casing, the second casing is connected to the valve seat assembly, and the transmission gear unit is connected to the stopper member. [Effects of the Invention]

[0017] The present application provides a pressure-type multi-passage solenoid valve, which comprises a valve core assembly, a valve seat assembly, a sealing unit and a power unit, and the valve seat assembly comprises a valve seat and a valve cover, the valve seat being a rotating member, and both ends of the valve seat Two an opening is provided to form a first receiving cavity, a valve cover covers one of the two openings, a valve core assembly and a sealing unit are both located in the first receiving cavity, the valve core assembly includes a valve core body and a stopper member, the shape of the outer wall of the valve core body matches the shape of the opening, the valve core body has a plurality of passages extending along the axial direction of the valve seat, the plurality of passages are spaced apart circumferentially of the valve core body, the stopper member is connected to the valve core body, the sealing unit includes a sealing ring and an elastic member, the shape of the sealing ring matches the shape of the opening of the valve seat, the sealing ring has a plurality of through holes, the sealing ring is connected to the opening of the valve seat opposite the valve cover, the elastic member is connected between the valve core body and the stopper member, and the valve core body abuts against the sealing ring by the action of the elastic member, a power unit is connected to the stopper member and drives the valve core body to rotate relative to the valve seat, and at least one passage provided in the valve core body is positioned opposite a corresponding through hole provided in the sealing ring to form a flow passage for the coolant. The elastic force of the elastic member keeps the valve core and the sealing ring in contact with each other, reducing the amount of coolant flowing through the circumferential gap between the valve core body and the valve seat, thereby improving the sealing performance of the valve body and further improving the temperature control effect of the automobile. [Brief explanation of the drawings]

[0018] In order to more clearly explain the technical solutions in the embodiments of the present application or the prior art, the following briefly introduces the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are part of the embodiments of the present application, and those skilled in the art can also obtain other drawings based on these drawings without any creative work. [Figure 1] 1 is an exploded view of the structure of a pressure-type multi-passage solenoid valve according to an embodiment of the present application; [Figure 2]1 is a structural exploded view of a valve core assembly and a sealing unit in a pressure-type multi-passage solenoid valve according to an embodiment of the present application; [Figure 3] 1 is a structural schematic diagram of a valve core body in a pressure-type multi-passage solenoid valve according to an embodiment of the present application; [Figure 4] 2 is a schematic diagram of the transmission structure of the power unit and the valve core assembly in the pressure-type multi-passage solenoid valve according to the embodiment of the present application; FIG. [Figure 5] 3 is a schematic diagram of the through-hole arrangement of the sealing ring in the pressure-type multi-passage solenoid valve according to the embodiment of the present application; DETAILED DESCRIPTION OF THE INVENTION

[0019] In order to clarify the objectives, technical solutions and advantages of the embodiments of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without any creative efforts fall within the scope of protection of the present invention. Unless contradictory, the following embodiments and features in the embodiments can be combined with each other.

[0020] In the prior art, the temperature control systems inside pure electric vehicles are interconnected via solenoid valves to achieve temperature control for the entire vehicle. Solenoid valves include multi-passage solenoid valves and integrated solenoid valves. Multi-passage solenoid valves require piping connections, while integrated solenoid valves have a valve core and valve body, which are rotatable together to form a coolant passage. However, these two types of solenoid valves are prone to piping deterioration and wear of the valve core and valve body after long-term use, which can result in a decrease in the sealing performance of the entire solenoid valve and affect the temperature control effect of the vehicle.

[0021] In order to overcome the drawbacks of the prior art, the present application provides a pressure-type multi-passage solenoid valve, which comprises a valve core assembly, a valve seat assembly, a sealing unit and a power unit, and the valve seat assembly comprises a valve seat and a valve cover, the valve seat being a rotating member, and both ends of the valve seat are provided with: Two an opening is provided to form a first receiving cavity, a valve cover covers one of the two openings, a valve core assembly and a sealing unit are both located in the first receiving cavity, the valve core assembly includes a valve core body and a stopper member, the shape of the outer wall of the valve core body matches the shape of the opening, the valve core body has a plurality of passages extending along the axial direction of the valve seat, the plurality of passages are spaced apart circumferentially of the valve core body, the stopper member is connected to the valve core body, the sealing unit includes a sealing ring and an elastic member, the shape of the sealing ring matches the shape of the opening of the valve seat, the sealing ring has a plurality of through holes, the sealing ring is connected to the opening on the side of the valve seat opposite the valve cover, the elastic member is connected between the valve core body and the stopper member, the valve core body is brought into contact with the sealing ring by the action of the elastic member, a power unit is connected to the stopper member and drives the valve core body to rotate relative to the valve seat, at least one passage provided in the valve core body is positioned opposite a corresponding through hole provided in the sealing ring to form a flow passage for the coolant. The elastic force of the elastic member keeps the valve core and the sealing ring in contact with each other, reducing the amount of coolant flowing through the circumferential gap between the valve core body and the valve seat, thereby improving the sealing performance of the valve body and further improving the temperature control effect of the automobile.

[0022] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following, the present invention will be described in detail with reference to the drawings so that those skilled in the art can more clearly understand the present invention.

[0023] The present application provides a pressure-sensitive multi-passage solenoid valve 100, which comprises a valve core assembly 110, a valve seat assembly 120, a sealing unit 130 and a power unit 140. The valve seat assembly 120 comprises a valve seat 121 and a valve cover 122. The valve seat 121 is a rotating member, and both ends of the valve seat 121 are provided with: Two An opening is provided to form a first receiving cavity 1211, and the valve cover 122 covers one of the two openings, and the valve core assembly 110 and the sealing unit 130 are both located in the first receiving cavity 1211; The valve core assembly 110 includes a valve core body 111 and a stopper member 112, the shape of the outer wall of the valve core body 111 is the same as the shape of the opening, the valve core body 111 has a plurality of passages extending along the axial direction of the valve seat 121, the plurality of passages are spaced apart along the circumferential direction of the valve core body, and the stopper member 112 is connected to the valve core body 111; The sealing unit 130 includes a sealing ring 131 and an elastic member 132. The shape of the sealing ring 131 matches the shape of the opening of the valve seat 121. The sealing ring 131 has a plurality of through holes 1311. The sealing ring 131 is connected to the opening of the valve seat 121 on the side opposite to the valve cover 122. The elastic member 132 is connected between the valve core body 111 and the stopper member 112. The valve core body 111 is brought into contact with the sealing ring 131 by the action of the elastic member 132. The power unit 140 is connected to the stopper member 112 and drives the valve core body 111 to rotate relative to the valve seat 121, and positions at least one passage provided in the valve core body 111 opposite the corresponding through hole 1311 in the sealing ring 131 to form a flow passage for the coolant.

[0024] FIG. 1 is an exploded view of the structure of a pressure-type multi-passage solenoid valve according to an embodiment of the present application, and FIG. 2 is an exploded view of the structure of a valve core assembly and a sealing unit in the pressure-type multi-passage solenoid valve according to an embodiment of the present application.

[0025] As shown in FIG. 1, the valve seat assembly 120 in this embodiment includes a valve seat 121 and a valve cover 122. The valve seat 121 has a circular cross section. The valve seat 121 has a pair of valve covers 122 at both ends in the axial direction. Two Openings are provided to form a first accommodating cavity 1211, a valve cover 122 is fixedly connected to one of the openings, the valve core assembly 110 is positioned in the first accommodating cavity 1211, and the valve cover 122 covers the end of the valve core assembly 110 along the axial direction of the valve seat 121.

[0026] The valve core assembly 110 includes a valve core body 111 and a stopper member 112. The valve core body 111 and the stopper member 112 are connected to the valve seat 121 along the axial direction, and the shapes of the outer walls of the valve core body 111 and the stopper member 112 match the shape of the opening of the valve seat 121. After the valve core body 111 is connected to the stopper member 112, the valve core body 111 is sealed in the first receiving cavity 1211 by the valve cover 122. As shown in FIG. 2, the valve core body 111 has a plurality of passages (not shown) inside, and the passages are connected to the valve core body 111. Zhou The plurality of passages are spaced apart along the axial direction of the valve core body 111, and all extend along the axial direction of the valve core body 111, and the passages are connected to each other inside the valve core body 111.

[0027] 1, the outer wall of the sealing ring 131 in the sealing unit 130 is also circular, and the sealing ring 131 is fixedly connected to the opening of the valve seat 121 on the side opposite to the connecting side of the valve cover 122. The sealing ring 131 is provided with a plurality of through holes 1311, which are arranged along the circumferential direction of the sealing ring 131 and face the plurality of passages provided in the valve core body 111 during operation of the elastic pressure type multi-passage solenoid valve. The sealing unit 130 further includes an elastic member 132, which is connected between the valve core body 111 and the stopper member 112, and the valve core body 111 is kept in contact with the sealing ring 131 by the elastic action of the elastic member 132.

[0028] In this embodiment, the power unit 140 is connected to the stopper member 112 and provides the power to rotate the valve core body 111 coaxially with respect to the valve seat 121. At this time, at least one passage provided in the valve core body 111 is positioned opposite to the corresponding through-hole 1311 provided in the sealing ring 131, thereby forming a flow passage for the coolant.

[0029] The above structure ensures that the solenoid valve has multiple coolant flow paths, and the elastic force of the elastic member keeps the valve core body and the sealing ring in contact with each other, thereby reducing the amount of coolant flowing between the valve core body and the cavity wall of the first receiving cavity of the valve seat, thereby improving the sealing performance of the entire solenoid valve.

[0030] In one possible embodiment, the elastic member 132 is a spring 1321, which extends along the axial direction of the valve core body 111, and a first end of the spring 1321 is connected to the side of the valve core body 111 opposite the passage, and a second end of the spring 1321 is connected to the stopper member 112.

[0031] 1 and 2, the spring 1321 extends along the axial direction of the valve core body 111, and both ends of the spring 1321 are respectively connected to the valve core body 111 and the stopper member 112. When the stopper member 112 is connected to the valve core body 111, the spring 1321 is pressed jointly by the valve core body 111 and the stopper member 112, generating elastic force, causing the spring 1321 to return to its natural energy-accumulating state along its own axial direction. At this time, the elastic action of the spring 1321 causes the valve core body 111 to move along the axial direction of the valve seat 121 and continuously abut against the sealing ring 131, thereby improving the sealing performance between the valve core body 111, the valve seat 121, and the sealing ring 131.

[0032] Optionally, the plurality of through holes 1311 have a sector-shaped cross section; The passage has a plurality of passage openings 1116, each of which has a fan shape, and the area of ​​each passage opening 1116 is smaller than the area of ​​the through hole 1311.

[0033] Optionally, a plurality of through holes 1311 are spaced apart along the circumferential direction of the sealing ring 131, with some of the through holes 1311 positioned to face the passages.

[0034] FIG. 3 is a structural diagram of a valve core body in a pressure-type multi-passage solenoid valve according to an embodiment of the present application, and FIG. 5 is a schematic diagram of the through-hole arrangement of a sealing ring in a pressure-type multi-passage solenoid valve according to an embodiment of the present application.

[0035] 1 to 3 and 5, in this embodiment, a plurality of through holes 1311 are located in the sealing ring 131, and the plurality of through holes 1311 include a first through hole 1311a, a second through hole 1311b, a third through hole 1311c, a fourth through hole 1311d, a fifth through hole 1311e, a sixth through hole 1311f, a seventh through hole 1311g, an eighth through hole 1311h and a ninth through hole 1311i. The through holes 1311 are arranged sequentially along the circumferential direction of the sealing ring 131, and each through hole 1311 is fan-shaped, wherein the areas of the first through hole 1311a, the second through hole 1311b, the third through hole 1311c, the fourth through hole 1311d, the seventh through hole 1311g, the eighth through hole 1311h and the ninth through hole 1311i are the same, the areas of the fifth through hole 1311e and the sixth through hole 1311f are the same, and the sum of the areas of the fifth through hole 1311e and the sixth through hole 1311f is the same as the area of ​​the other through holes.

[0036] Accordingly, the passage openings 1116 are located on the side of the valve core body 111 facing the sealing ring 131, and the passage openings 1116 include a first passage opening 1116a, a second passage opening 1116b, a third passage opening 1116c, a fourth passage opening 1116d, a fifth passage opening 1116e, a sixth passage opening 1116f, a seventh passage opening 1116g, and an eighth passage opening 1116h. The passage openings 1116 are spaced apart along the circumferential direction of the valve core body 111 on the end face of the valve core body 111 facing the sealing ring 131. The passage openings 1116 are also fan-shaped, and the area of ​​the fan-shaped passage opening 1116 is smaller than the area of ​​the through-holes 1311. When the valve core body 111 rotates coaxially with the valve seat 121, the passage openings 1116 face some of the through-holes 1311.

[0037] Optionally, as shown in Figures 1 and 2, the valve core body 111 includes a first end cover 1112, a valve core casing 1111, and a second end cover 1113, which are sequentially connected along the axis of the valve seat 121 to form a second receiving cavity 1115. Specifically, the first end cover 1112 is welded to the valve core casing 1111, and the valve core casing 1111 is welded to the second end cover 1113.

[0038] In one possible embodiment, a plurality of passages are located in the second receiving cavity 1115, and both ends of the plurality of passages are respectively connected to a plurality of passage openings 1116, and the plurality of passage openings 1116 are located in the first end cap.

[0039] As shown in Figures 1 to 3, the second accommodating cavity 1115 of the valve core body 111 is provided with multiple passages (not shown), which extend along the axial direction of the valve core body 111. Each passage has a passage opening 1116, and all of the passage openings 1116 are located in the first end cover 1112. Specifically, the first passage opening 1116a and the third passage opening 1116c are connected via the first passage, the second passage opening 1116b and the fourth passage opening 1116d are connected via the second passage, the fifth passage opening 1116e and the seventh passage opening 1116g are connected via the third passage, and the sixth passage opening 1116f and the eighth passage opening 1116h are connected via the fourth passage. The connections between the passages and the passage openings allow the coolant to flow within the valve core body 111.

[0040] In one possible embodiment, a plurality of positioning portions 1114 are provided in the center of the valve core casing 1111, the positioning portions 1114 extend along the axial direction of the valve core casing 1111, and openings are provided on the side of the positioning portions 1114 opposite to the first end cover 1112; The stopper member 112 has a plurality of positioning pins 1121 , which extend along the axial direction of the valve core body 111 , and the positioning pins 1121 are inserted into the positioning portions 1114 .

[0041] 2 and 3, the positioning part 1114 is located in the center of the valve core casing 1111, and the positioning part 1114 and the inner cavity wall of the second receiving cavity 1115 are connected to form a plurality of cavities. The positioning part 1114 extends along the axial direction of the valve core casing 1111, the opening in the center of the second end cover 1113 is the second end cover opening 1117 in FIG. 3, and the stopper member 112 is provided with a plurality of positioning pins 1121, which are also located in the center of the stopper member 112. Each positioning pin 1121 extends along the axial direction of the valve core body 111 and is inserted into the positioning part 1114.

[0042] In a feasible embodiment, the stopper member 112 further includes a first casing 1122 and a transmission member 1123, wherein the positioning pin 1121 and the transmission member 1123 are respectively connected to opposite sides of the first casing 1122, the first casing 1122 is connected to the second end cover 1113 to form a third accommodating cavity, and the transmission member 1123 is connected to the power unit 140.

[0043] As shown in FIG. 2, the stopper member 112 includes a positioning pin 1121, a first casing 1122, and a transmission member 1123. The positioning pin 1121, the first casing 1122, and the transmission member 1123 are connected in sequence along the axial direction of the valve core body 111. The positioning pin 1121 is connected to the side of the first casing 1122 facing the valve core body 111, the transmission member 1123 is connected to the side of the first casing 1122 facing away from the valve core body 111, and the first casing 1122 is connected to the second end cover 1113 of the valve core body 111, thereby forming a third accommodating cavity (not shown).

[0044] Specifically, the positioning pin 1121 of the stopper member 112 passes through the second end cover opening 1117 and is connected to the corresponding positioning portion 1114 of the valve core body 111. The transmission member 1123 is connected to the power unit 140, and the rotation output from the power unit 140 drives the stopper member 112 to rotate, which in turn rotates the valve core body 111. At this time, the passage ports 1116 on the first end cover 1112 face the through holes 1311 on the sealing ring 131, and the coolant flows through the corresponding through holes 1311 and passage ports 1116. In addition, in this embodiment, the number of positioning pins 1121 and positioning portions 1114 is four, and they are connected to each other in a corresponding manner. As can be easily understood, it is also possible to set the number of positioning pins 1121 to two and the number of positioning portions 1114 to four, and it is sufficient to connect two of the two positioning pins 1121 and positioning portions 1114 in a corresponding manner, and the same connection function can be achieved. Therefore, in this embodiment, there are no specific limitations on the number of positioning pins and positioning portions and the relative position of their connection, as long as the connection between the two meets the structural design requirements.

[0045] As can be seen, the elastic member 132 is located in the third receiving cavity, and both ends of the elastic member 132 are respectively in contact with the second end cover 1113 and the first casing 1122. A first end of the elastic member 132 is connected to the second end cover 1113, and a second end of the elastic member 132 is connected to the first casing 1122 and to the side of the first casing 1122 facing the second end cover 1113. After the first casing 1122 is connected to the second end cover 1113, the elastic force of the elastic member 132 keeps the first end cover 1112 of the valve core body 111 and the sealing ring 131 in contact with each other.

[0046] In one possible embodiment, the power unit 140 comprises a second casing 141, a transmission gear unit 143 and a motor 142, the transmission gear unit 143 and the motor 142 are connected to the second casing 141, the second casing 141 is connected to the valve seat assembly 120, and the transmission gear unit 143 is connected to the stopper member 112.

[0047] FIG. 4 is a schematic diagram of the transmission structure of the power unit and the valve core assembly in the pressure-type multi-passage solenoid valve according to the embodiment of the present application.

[0048] 1 and 4, the power unit 140 in this embodiment includes a second casing 141, a transmission gear unit 143, and a motor 142. The second casing 141 covers one side of the transmission gear unit 143 and the motor 142, where the motor 142 is connected to the transmission gear unit 143, and the transmission gear unit 143 is connected to the stopper member 112.

[0049] Specifically, the transmission gear unit 143 includes a worm 1431 , a worm wheel 1432 , a first gear 1433 , a second gear 1434 , a third gear 1435 , a fourth gear 1436 and a fifth gear 1437 . Here, the worm 1431 is connected to the motor 142, the worm wheel 1432 is combined with the worm 1431 to transmit power, and one side of the worm wheel 1432 is meshed with the worm 1431 to transmit power, and the other side is meshed with the first gear 1433, the second gear 1434 is coaxially connected to the first gear 1433, the second gear 1434 is meshed with the fourth gear 1436 to transmit power, the third gear 1435 is coaxially connected to the fourth gear 1436, the third gear 1435 is meshed with the fifth gear 1437 to transmit power, and the fifth gear 1437 is fixedly connected coaxially to the transmission member 1123 in the stopper member 112.

[0050] Here, the second gear 1434 and the first gear 1433 are coaxially connected along the axial direction of the valve core body 111, and the second gear 1434 is connected to the opposite side of the valve core body 111, and the third gear 1435 and the fourth gear 1436 are coaxially connected along the axial direction of the valve core body 111, and the fourth gear 1436 is connected to the opposite side of the valve core body 111. The design parameters of the worm wheel, worm, and each gear in the transmission gear unit 143 are specifically designed according to actual conditions, but are not specifically limited in this embodiment.

[0051] By installing the power unit 140, the rotational torque output from the motor 142 can drive the valve core body 111 to rotate relative to the valve seat 121 through the transmission of the transmission gear unit 143 and the connection of the stopper member 112.

[0052] As can be easily understood, in this embodiment, the valve seat 121 further has a plurality of bolt connections 1212, and the valve seat 121 can be connected to an external mechanism via the bolt connections 1212, and the second casing 141 and the valve seat 121 are also fixedly connected via the bolt connections 1212. Furthermore, when the valve seat 121 is connected to an external mechanism, sealing is also required, specifically, via the external sealing ring 150, and the external sealing ring 150 and the sealing ring 131 must be structurally identical, and when the external sealing ring 150 is connected to the valve seat 121, the through holes in the external sealing ring 150 and the through holes in the sealing ring 131 must correspond to each other.

[0053] The operation of the pressure-type multi-passage solenoid valve according to this embodiment will now be described.

[0054] The sealing ring 131 is fixedly connected to the valve seat 121, allowing the valve core body 111 to rotate coaxially relative to the valve seat 121. The passage port 1116 in the first end cover 1112 of the valve core body 111 and the through-hole in the sealing ring 131 face each other and communicate with each other during the rotation of the valve core body 111. In a certain operating state, the first passage port 1116a faces the ninth through-hole 1311i, and the third passage port 1116c, which is connected to the first passage port 1116a by the first passage, faces the second through-hole 1311b. It is easy to understand that the coolant flows through the facing through-holes, passage port, and passage. The flow direction of the coolant is not specifically limited herein.

[0055] Accordingly, the second passage opening 1116b faces the first through hole 1311a, and the fourth passage opening 1116d, which is connected to the second passage opening 1116b via the second passage, faces the third through hole 1311c, and the coolant flows through the opposing through holes, passage openings, and passages.

[0056] The fifth passage opening 1116e faces the fourth through hole 1311d, and the seventh passage opening 1116g, which is connected to the fifth passage opening 1116e via the third passage, faces the seventh through hole 1311g, and the coolant flows through the opposing through holes, passage openings, and passages.

[0057] The sixth passage opening 1116f faces the sixth through hole 1311f, and the eighth passage opening 1116h, which is connected to the sixth passage opening 1116f via the fourth passage, faces the eighth through hole 1311h, and the coolant flows through the opposing through holes, passage openings, and passages.

[0058] The fifth through-hole 1311e does not face any passage opening 1116, in which case the first end cap 1112 faces the fifth through-hole 1311e, and the coolant does not flow through the fifth through-hole 1311e.

[0059] It is understood that the above working state is only one example of the multiple working states of the pressure-sensitive multi-passage solenoid valve 100 provided by the present application. The power unit 140 controls the valve core body 111 to rotate relative to the valve seat 121 and the sealing ring 131, and the relative position between the passage port 1116 and the through-hole 1311 changes accordingly. When the valve core body 111 rotates at different angles, the passage port 1116 faces different through-holes 1311, and multiple different communication positions are formed, thereby realizing various working states of the pressure-sensitive multi-passage solenoid valve 100.

[0060] The present application provides a pressure-type multi-passage solenoid valve, which comprises a valve core assembly, a valve seat assembly, a sealing unit and a power unit, and the valve seat assembly comprises a valve seat and a valve cover, the valve seat being a rotating member, and both ends of the valve seat Twoan opening is provided to form a first receiving cavity, a valve cover covers one of the two openings, a valve core assembly and a sealing unit are both located in the first receiving cavity, the valve core assembly includes a valve core body and a stopper member, the shape of the outer wall of the valve core body matches the shape of the opening, the valve core body has a plurality of passages extending along the axial direction of the valve seat, the plurality of passages are spaced apart circumferentially of the valve core body, the stopper member is connected to the valve core body, the sealing unit includes a sealing ring and an elastic member, the shape of the sealing ring matches the shape of the opening of the valve seat, the sealing ring has a plurality of through holes, the sealing ring is connected to the opening of the valve seat opposite the valve cover, the elastic member is connected between the valve core body and the stopper member, the valve core body is brought into contact with the sealing ring by the action of the elastic member, a power unit is connected to the stopper member and drives the valve core body to rotate relative to the valve seat, at least one passage provided in the valve core body is positioned opposite a corresponding through hole provided in the sealing ring to form a flow passage for the coolant. The elastic force of the elastic member keeps the valve core and the sealing ring in contact with each other, reducing the amount of coolant flowing through the circumferential gap between the valve core body and the valve seat, thereby improving the sealing performance of the valve body and further improving the temperature control effect of the automobile.

[0061] In addition, when a phrase such as "one embodiment," "embodiment," "exemplary embodiment," or "some embodiments" is used in the specification, it indicates that the embodiment may include a particular feature, structure, or characteristic, but not all embodiments necessarily include the particular feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Furthermore, when a particular feature, structure, or characteristic is described with reference to an embodiment, it is within the knowledge of a person skilled in the art to implement the feature, structure, or characteristic in combination with other embodiments, whether explicitly or implicitly described.

[0062] In general, terms should be understood at least in part based on their usage in context. For example, depending on the context, the term "one or more" used in a sentence may be used in the singular sense to describe any feature, structure, or characteristic, or in the plural sense to describe a combination of features, structures, or characteristics. Similarly, depending on the context, terms such as "a" or "the" may be interpreted to convey either the singular or the plural.

[0063] It should be readily understood that the terms "on," "over," and "on" in this application should be interpreted in the broadest possible manner. That is, "on" not only means "directly on top of an object," but also encompasses the meaning of "on top of an object with intermediate features or layers therebetween." Furthermore, "on top" or "on" can also encompass the meaning of "above an object" or "on top of an object," but also "above an object with no intermediate features or layers" or "on top of an object with no intermediate features or layers (i.e., directly on top of an object)."

[0064] Additionally, for ease of description, the text may use spatially relative terms such as "below," "below," "below," "above," "above," and the like to describe the illustrated relationship of one element or feature to another. The spatially relative terms are intended to encompass different orientations in which the device is used or operated other than the orientation depicted in the drawings. The device may be in other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used in the text should be interpreted accordingly.

[0065] Finally, it should be noted that the above embodiments are for illustrating the technical solutions of the present invention, and are not intended to limit the same. Although the present invention has been described in detail based on the above embodiments, those skilled in the art can still make modifications to the technical solutions described in the above embodiments, or make equivalent substitutions for part or all of the technical features thereof, and such modifications or substitutions will not deviate from the essence of the corresponding technical solutions within the scope of the technical solutions of the embodiments of the present invention. thing should be understood.

[0066] This application claims priority from a Chinese patent application bearing application number 2023103571386 and entitled "Pressure-Type Multi-Passage Solenoid Valve," filed with the China Patent Office on March 30, 2023, the entire contents of which are incorporated herein by reference. [Explanation of symbols]

[0067] 100 - pressure-type multi-passage solenoid valve, 110 - valve core assembly, 111 - valve core body, 112 - stopper member, 1111 - valve core casing, 1112 - first end cap, 1113 - second end cap, 1114 - positioning portion, 1115 - second receiving cavity, 1116 - passage port, 1117 - second end cap opening, 1121 - positioning pin, 1122 - first casing, 1123 - transmission member, 1116a - first passage opening, 1116b - second passage opening, 1116c - third passage opening, 1116d - fourth passage opening, 1116e - fifth passage opening, 1116f - sixth passage opening, 1116g - seventh passage opening, 1116h - eighth passage opening, 120—valve seat assembly; 121—valve seat; 122—valve cover; 1211 - first receiving cavity, 1212 - bolt connection, 130—sealing unit; 131—sealing ring; 132—elastic member; 1311—through hole; 1321—spring; 1311a - first through hole, 1311b - second through hole, 1311c - third through hole, 1311d - fourth through hole, 1311e - fifth through hole, 1311f - sixth through hole, 1311g - seventh through hole, 1311h - eighth through hole, 1311i - ninth through hole, 140 - power unit; 141 - second casing; 142 - motor; 143 - transmission gear unit; 1431 - worm, 1432 - worm wheel, 1433 - first gear, 1434 - second gear, 1435 - third gear, 1436 - fourth gear, 1437 - fifth gear, 150 - external sealing ring.

Claims

1. A pressure-type multi-passage solenoid valve, comprising: a valve core assembly, a valve seat assembly, a sealing unit, and a power unit; the valve seat assembly comprises a valve seat and a valve cover; the valve seat is a rotating member; openings are provided at both ends of the valve seat to form a first receiving cavity; the valve cover covers one of the two openings; and the valve core assembly and the sealing unit are both located in the first receiving cavity; The valve core assembly includes a valve core body and a stopper member, the shape of the outer wall of the valve core body matches the shape of the opening, the valve core body has a plurality of passages extending along the axial direction of the valve seat, the plurality of passages are arranged at intervals along the circumferential direction of the valve core body, and the stopper member is connected to the valve core body; The sealing unit includes a sealing ring and an elastic member, the shape of the sealing ring corresponds to the shape of the opening of the valve seat, the sealing ring has a plurality of through holes, the sealing ring is connected to the opening of the valve seat on the side opposite to the valve cover, the elastic member is connected between the valve core body and the stopper member, and the valve core body is pressed against the sealing ring by the action of the elastic member, a power unit connected to the stopper member for driving the valve core body to rotate relative to the valve seat, and at least one of the passages provided in the valve core body is disposed opposite to a corresponding through-hole provided in the sealing ring to form a cooling fluid flow passage.

2. 2. The pressure-type multi-passage solenoid valve according to claim 1, wherein the elastic member is a spring, the spring extends along the axial direction of the valve core body, a first end of the spring is connected to a side of the valve core body opposite to the passage, and a second end of the spring is connected to the stopper member.

3. The plurality of through holes have a sector-shaped cross section, 3. The pressure-type multi-passage solenoid valve according to claim 1, wherein the passage has a plurality of passage openings, each of which has a sector shape, and the area of ​​each of the passage openings is smaller than the area of ​​the through hole.

4. the plurality of through holes are spaced apart along a circumferential direction of the sealing ring; 4. The pressure-type multi-passage solenoid valve according to claim 3, wherein some of the through holes are arranged opposite to the passages.

5. 5. The pressure-type multi-passage solenoid valve according to claim 4, wherein the core body comprises a first end cover, a core casing and a second end cover, and the first end cover, the core casing and the second end cover are connected in sequence along the axis of the valve seat to form a second receiving cavity.

6. 6. The pressure-type multi-passage solenoid valve according to claim 5, wherein the plurality of passages are located in the second receiving cavity, and both ends of the plurality of passages are respectively connected to the plurality of passage ports, and the plurality of passage ports are located in the first end cover.

7. a plurality of positioning portions are provided in the center of the valve core casing, the positioning portions extend along the axial direction of the valve core casing, and openings are provided on the sides of the positioning portions opposite to the first end cover; 7. The elastic pressure type multi-passage solenoid valve according to claim 6, wherein the stopper member includes a plurality of positioning pins, the plurality of positioning pins extend along the axial direction of the valve core body, and the positioning pins are inserted into the positioning portions.

8. 8. The pressure-resilient multi-passage solenoid valve according to claim 7, wherein the stopper member further comprises a first casing and a transmission member, the positioning pin and the transmission member are respectively connected to opposite sides of the first casing, the first casing is connected to the second end cover to form a third accommodating cavity, and the transmission member is connected to the power unit.

9. 9. The pressure-type multi-passage solenoid valve according to claim 8, wherein the elastic member is located in the third accommodating cavity, and both ends of the elastic member are abutted against the second end cover and the first casing, respectively.

10. 10. The pressure-resilient multi-passage solenoid valve according to claim 1, wherein the power unit comprises a second casing, a transmission gear unit, and a motor, the transmission gear unit and the motor are connected to the second casing, the second casing is connected to the valve seat assembly, and the transmission gear unit is connected to the stopper member.

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