Repressive multi-pass 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] This application relates to the field of electromagnetic valves for new energy vehicles, and particularly to a resilient multi-way electromagnetic valve.

Background Art

[0002] With the popularization and development of new energy vehicles, pure electric vehicles have attracted high attention.

[0003] The temperature control system inside a pure electric vehicle is interconnected via electromagnetic valves to achieve temperature control of the entire vehicle. The electromagnetic valves include multi-way electromagnetic valves and integrated electromagnetic valves. While multi-way electromagnetic valves require pipe connections, integrated electromagnetic valves have a valve core and a valve body, and a rotatable combination of the valve core and the valve body forms a coolant passage.

[0004] However, when these two types of electromagnetic valves are used for a long time, pipe deterioration and wear of the valve core and valve body are likely to occur. As a result, the overall sealing performance of the electromagnetic valve decreases, which may affect the temperature control effect of the vehicle.

Summary of the Invention

Problems to be Solved by the Invention

[0005] This application provides a resilient multi-way electromagnetic valve that improves the sealing performance of the electromagnetic valve to enhance the temperature control effect of the vehicle.

Means for Solving the Problems

[0006] To achieve the above object, this application adopts the following technical solutions.

[0007] This application provides a resilient multi-way electromagnetic valve, which includes a valve core assembly, a valve seat assembly, a sealing unit, and a power unit. The valve seat assembly includes a valve seat and a valve cover. The valve seat is a rotating member, and at both ends of the valve seat twoAn opening is provided to form a first housing cavity, the valve cover is covered by one of the two openings, and both the valve core assembly and the sealing unit are located within the first housing cavity. The valve core assembly comprises a valve core body and a stopper member, wherein the shape of the outer wall of the valve core body matches the shape of the opening, the valve core body has multiple passages extending along the axial direction of the valve seat, the multiple 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 comprises a sealing ring and an elastic member, the shape of which the sealing ring matches the shape of the valve seat opening, the sealing ring is provided with multiple 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, 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 a stopper member and drives the valve core body to rotate relative to the valve seat, positioning at least one passage in the valve core body to face a corresponding through-hole in the sealing ring, thereby forming a passage for the coolant to flow.

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

[0009] In one possible embodiment, the cross-section of the multiple through holes is fan-shaped, The passage has multiple passage openings, all of which are fan-shaped, and the area of ​​each passage opening is smaller than the area of ​​the through-hole.

[0010] In one possible embodiment, multiple through-holes are spaced apart along the circumferential direction of the sealing ring, with some of the through-holes positioned to face the passage.

[0011] In one possible embodiment, the valve core body comprises a first end cover, a valve core casing, and a second end cover, the first end cover, the valve core casing, and the second end cover being sequentially connected along the axis of the valve seat to form a second housing cavity.

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

[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 an opening is provided on the side opposite to the first end cover of the positioning portion. The stopper member is equipped with multiple positioning pins, the multiple positioning pins extending along the axial direction of the valve core body, and the positioning pins are inserted into the positioning portion.

[0014] In one possible embodiment, the stopper member further comprises a first casing and a transmission member, the positioning pin and the transmission member being connected to opposing sides of the first casing, the first casing being connected to a second end cover to form a third housing cavity, and the transmission member being connected to a power unit.

[0015] In one possible embodiment, the elastic member is located within a third housing cavity, with both ends of the elastic member in contact with a second end cover and a first casing, respectively.

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

[0017] This application provides a repressive multi-pass solenoid valve, the repressive multi-pass solenoid valve comprising a valve core assembly, a valve seat assembly, a sealing unit and a power unit, the valve seat assembly comprising 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 housing cavity, a valve cover is covered by one of the two openings, and both the valve core assembly and the sealing unit are located in the first housing cavity, the valve core assembly comprises 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, the stopper member is connected to the valve core body, the sealing unit comprises 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 to 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, and 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, forming a passage for coolant flow. The elastic action of the elastic member maintains contact between the valve core and the sealing ring, reducing the amount of coolant flowing through the circumferential gap between the valve core body and the valve seat. This improves the sealing performance of the valve body and further enhances the temperature control effect of the automobile. [Brief explanation of the drawing]

[0018] To more clearly explain the embodiments of this application or the technical concepts in the prior art, the following is a brief introduction of the drawings that may be used in the description of the embodiments or the prior art. Clearly, the drawings in the following description are only a part of the embodiments relating to this application, and a person skilled in the art may obtain other drawings based on these drawings, provided that no creative work is performed. [Figure 1] This is an exploded view of the structure of a repressive multi-pass solenoid valve according to an embodiment of the present invention. [Figure 2]It is a structural decomposition diagram of a valve core assembly and a sealing unit in a pressure-loaded multi-channel solenoid valve according to an embodiment of the present application. [Figure 3] It is a structural schematic diagram of a valve core body in a pressure-loaded multi-channel solenoid valve according to an embodiment of the present application. [Figure 4] It is a transmission structure schematic diagram of a power unit and a valve core assembly in a pressure-loaded multi-channel solenoid valve according to an embodiment of the present application. [Figure 5] It is a schematic diagram of the through-hole arrangement of a sealing ring in a pressure-loaded multi-channel solenoid valve according to an embodiment of the present application.

Mode for Carrying Out the Invention

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, hereinafter, referring to the drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are some but not all of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention. Unless there is a contradiction, the following embodiments and the features in the embodiments can be combined with each other.

[0020] [[ID=one]]In the prior art, the temperature control system inside a pure electric vehicle is interconnected via solenoid valves to achieve temperature control of the entire vehicle. The solenoid valves include multi-channel solenoid valves and integrated solenoid valves. While multi-channel solenoid valves require pipe connections, integrated solenoid valves have a valve core and a valve body, and a rotatable combination of the valve core and the valve body forms a coolant passage. However, when these two types of solenoid valves are used for a long time, deterioration of the pipes and wear of the valve core and valve body are likely to occur. As a result, the overall sealing performance of the solenoid valve may decrease, which may affect the temperature control effect of the vehicle.

[0021] To overcome the drawbacks in the prior art, the present application provides a pressure-loaded multi-channel solenoid valve, which includes a valve core assembly, a valve seat assembly, a sealing unit, and a power unit. The valve seat assembly includes a valve seat and a valve cover. The valve seat is a rotating member, and at both ends of the valve seat two An opening is provided to form a first accommodating cavity, the valve cover covers one of the two openings, both the valve core assembly and the sealing unit are located in the first accommodating 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, 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, a plurality of through holes are provided in the sealing ring, the sealing ring is connected to the opening on the side of the valve seat opposite to the valve cover, the elastic member is connected between the valve core body and the stopper member, the valve core body is abutted against 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 at least one passage provided in the valve core body is arranged to face the corresponding through hole provided in the sealing ring to form a coolant flow passage. Due to the elastic action of the elastic member, the contact state between the valve core and the sealing ring is maintained, the coolant flowing through the circumferential gap between the valve core body and the valve seat is reduced, thereby improving the sealing performance of the valve body and further improving the temperature control effect of the vehicle.

[0022] Hereinafter, in order for those skilled in the art to more clearly understand the content of the present invention, the content of the present invention will be described in detail with reference to the drawings.

[0023] This application provides a resilient multi-pass electromagnetic valve 100, the resilient multi-pass electromagnetic valve 100 includes a valve core assembly 110, a valve seat assembly 120, a sealing unit 130 and a power unit 140, the valve seat assembly 120 includes a valve seat 121 and a valve cover 122, the valve seat 121 is a rotating member, and at both ends of the valve seat 121 two An opening is provided to form a first accommodating cavity 1211, the valve cover 122 covers one of the two openings, both the valve core assembly 110 and the sealing unit 130 are located in the first accommodating cavity 1211, The valve core assembly 110 comprises a valve core body 111 and a stopper member 112, wherein the shape of the outer wall of the valve core body 111 matches 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 comprises a sealing ring 131 and an elastic member 132, wherein 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, and 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, positioning at least one passage provided in the valve core body 111 to face the corresponding through hole 1311 of the sealing ring 131, thereby forming a passage for the coolant to flow.

[0024] Figure 1 is an exploded view of the structure of a repressive multi-pass solenoid valve according to an embodiment of the present invention, and Figure 2 is an exploded view of the structure of the valve core assembly and sealing unit in a repressive multi-pass solenoid valve according to an embodiment of the present invention.

[0025] As shown in Figure 1, the valve seat assembly 120 in this embodiment comprises a valve seat 121 and a valve cover 122, the cross-section of the valve seat 121 is circular, and the valve seat 121 has two ends in its axial direction. two An opening is provided to form a first housing cavity 1211, a valve cover 122 is fixedly connected to one of the openings, a valve core assembly 110 is located in the first housing 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 comprises a valve core body 111 and a stopper member 112, the valve core body 111 and the stopper member 112 are connected along the axial direction of the valve seat 121, 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, and after the valve core body 111 is connected to the stopper member 112, the valve cover 122 seals the valve core body 111 into the first housing cavity 1211. As shown in Figure 2, a plurality of passages (not shown) are provided inside the valve core body 111, and the plurality of passages are located inside the valve core body 111 Zhou The passages are spaced apart along the direction, and each passage extends along the axial direction of the valve core body 111, and each passage is in communication with the inside of the valve core body 111.

[0027] Furthermore, as shown in Figure 1, the outer wall shape of the sealing ring 131 in the sealing unit 130 is also circular, and the sealing ring 131 is fixedly connected to the opening on the valve seat 121 opposite to the connection side of the valve cover 122, and 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 the operation of the resilient multi-passage solenoid valve. The sealing unit 130 further comprises an elastic member 132, which is connected between the valve core body 111 and the stopper member 112, and the valve core body 111 maintains contact with the sealing ring 131 due to the elastic action of the elastic member 132.

[0028] In this embodiment, the power unit 140 is connected to the stopper member 112, and the power unit 140 provides 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 to face a corresponding through hole 1311 provided in the sealing ring 131, thereby forming a passage for the coolant to flow.

[0029] By installing the above structure, it is ensured that the solenoid valve has multiple coolant flow paths, and the elastic action of the elastic member continuously maintains the valve core body and the sealing ring in contact. This reduces the amount of coolant flowing between the valve core body and the cavity wall of the first housing cavity of the valve seat, thereby improving the overall sealing performance of the solenoid valve.

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

[0031] As shown in Figures 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 connected to the valve core body 111 and the stopper member 112, respectively. When the stopper member 112 is connected to the valve core body 111, the spring 1321 receives joint pressure from the valve core body 111 and the stopper member 112, generating elasticity. This causes the spring 1321 to return to its natural energy storage state along its own axial direction. At this time, the elastic action of the spring 1321 moves the valve core body 111 along the axial direction of the valve seat 121, causing it to continuously contact 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] Selectively, the cross-sections of multiple through holes 1311 are fan-shaped. The passage has multiple passage openings 1116, each of which is fan-shaped, and the area of ​​each passage opening 1116 is smaller than the area of ​​the through hole 1311.

[0033] Selectively, multiple through holes 1311 are arranged at intervals along the circumferential direction of the sealing ring 131, with some of the through holes 1311 positioned to face the passage.

[0034] Figure 3 is a schematic diagram of the structure of the valve core body in a resilient multi-pass solenoid valve according to an embodiment of the present invention, and Figure 5 is a schematic diagram of the arrangement of through holes in the sealing ring in a resilient multi-pass solenoid valve according to an embodiment of the present invention.

[0035] Referring to Figures 1 to 3 and Figure 5, the plurality of through holes 1311 in this embodiment 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 sector-shaped, where 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 multiple 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, and the passage openings 1116 are arranged at intervals 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, and the shape of the passage openings 1116 is also fan-shaped, and the area of ​​the fan shape of the passage opening 1116 is smaller than the area of ​​the through hole 1311. When the valve core body 111 rotates coaxially with respect to the valve seat 121, the passage openings 1116 face some of the through hole 1311.

[0037] As can be selected, as shown in Figures 1 and 2, the valve core body 111 comprises a first end cover 1112, a valve core casing 1111, and a second end cover 1113, the first end cover 1112, the valve core casing 1111, and the second end cover 1113 being sequentially connected along the axis of the valve seat 121 to form a second housing 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 accommodation cavity 1115, and both ends of the plurality of passages are connected to a plurality of passage openings 1116, the plurality of passage openings 1116 located in the first end cover.

[0039] As shown in Figures 1 to 3, the second housing cavity 1115 of the valve core body 111 is provided with a plurality of passages (not shown), the plurality of passages extending along the axial direction of the valve core body 111, each passage having a passage opening 1116, and each passage opening 1116 is located on 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, and the coolant flows inside the valve core body 111 through the connections between the passages and passage openings.

[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 an opening is provided on the side of the positioning portion 1114 opposite to the first end cover 1112. The stopper member 112 is equipped with a plurality of positioning pins 1121, the plurality of positioning pins 1121 extending along the axial direction of the valve core body 111, and the positioning pins 1121 are inserted into the positioning portion 1114.

[0041] As shown in Figures 2 and 3, the positioning portion 1114 is located in the center of the valve core casing 1111, and the positioning portion 1114 and the inner cavity wall of the second housing cavity 1115 are connected to form a joint enclosure of multiple cavities. The positioning portion 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 Figure 3, and the stopper member 112 is provided with a plurality of positioning pins 1121, which are similarly located in the center of the stopper member 112, each positioning pin 1121 extending along the axial direction of the valve core body 111 and inserted into the positioning portion 1114.

[0042] In a feasible embodiment, the stopper member 112 further comprises a first casing 1122 and a transmission member 1123, the positioning pin 1121 and the transmission member 1123 being connected to opposing sides of the first casing 1122, the first casing 1122 being connected to a second end cover 1113 to form a third housing cavity, and the transmission member 1123 being connected to a power unit 140.

[0043] Furthermore, as shown in Figure 2, the stopper member 112 comprises 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 sequentially connected along the axial direction of the valve core body 111, with the positioning pin 1121 connected to the side of the first casing 1122 facing the valve core body 111, the transmission member 1123 connected to the side of the first casing 1122 opposite to the valve core body 111, and the first casing 1122 connected to the second end cover 1113 of the valve core body 111, forming a third housing 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 positioning portion 1114 on 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, and the valve core body 111 rotates in conjunction with it. At this time, each passage opening 1116 provided in the first end cover 1112 faces the through hole 1311 provided in the sealing ring 131, and the coolant flows through the corresponding through hole 1311 and passage opening 1116. In this embodiment, there are four positioning pins 1121 and four positioning parts 1114, and they are connected in correspondence with each other. To make it easy to understand, it is also possible to set the number of positioning pins 1121 to two and the positioning parts 1114 to four locations. In this case, it is sufficient to connect two of the two positioning pins 1121 and two of the positioning parts 1114 in correspondence, and the connection function can be achieved in the same way. Therefore, in this embodiment, there are no specific limitations on the number of positioning pins and positioning parts or the relative positions of their connections, as long as the connections between them satisfy the structural design requirements.

[0045] To make it easier to understand, the elastic member 132 is located within the third housing cavity, with both ends of the elastic member 132 in contact with the second end cap 1113 and the first casing 1122, respectively. The first end of the elastic member 132 is connected to the second end cap 1113, and the 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 cap 1113. After the first casing 1122 is connected to the second end cap 1113, the elastic action of the elastic member 132 maintains contact between the first end cap 1112 of the valve core body 111 and the sealing ring 131.

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

[0047] Figure 4 is a schematic diagram of the power transmission structure of the power unit and valve core assembly in a resilient multi-pass solenoid valve according to an embodiment of the present invention.

[0048] Referring to Figures 1 and 4, the power unit 140 in this embodiment comprises 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 comprises 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 transmits power in combination with the worm 1431, and one side of the worm wheel 1432 meshes with the worm 1431 for transmission, and the other side meshes with the first gear 1433, the second gear 1434 is connected coaxially to the first gear 1433, the second gear 1434 meshes with the fourth gear 1436 for transmission, the third gear 1435 is connected coaxially to the fourth gear 1436, the third gear 1435 meshes with the fifth gear 1437 for transmission, 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, with the second gear 1434 connected on the side opposite to 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, with the fourth gear 1436 connected on the side opposite to the valve core body 111. Note that the design parameters of the worm wheel, worm, and each gear in the transmission gear unit 143 are specifically designed according to the actual situation, but this embodiment does not specifically limit them.

[0051] With the installation of the power unit 140, the rotational torque output from the motor 142 can be driven to rotate the valve core body 111 relative to the valve seat 121 via the transmission of the transmission gear unit 143 and the connection of the stopper member 112.

[0052] To make it easy to understand, in this embodiment, the valve seat 121 further has a plurality of bolt connection parts 1212, and the valve seat 121 can be connected to an external mechanism via the bolt connection parts 1212, and the second casing 141 and the valve seat 121 are also fixedly connected by the bolt connection parts 1212. When the valve seat 121 is connected to an external mechanism, sealing is also required, specifically, it is connected via an external sealing ring 150, and the external sealing ring 150 and the sealing ring 131 have completely identical structures, and when the external sealing ring 150 is connected to the valve seat 121, the through holes provided in the external sealing ring 150 and the through holes provided in the sealing ring 131 must correspond to each other.

[0053] The following describes the operating state of the repressive multi-pass solenoid valve according to this embodiment.

[0054] A sealing ring 131 is fixedly connected to the valve seat 121, the valve core body 111 rotates coaxially with respect to the valve seat 121, and the passage opening 1116 provided in the first end cover 1112 of the valve core body 111 and the through hole provided in the sealing ring 131 are able to communicate with each other as the valve core body 111 rotates. In a certain operating state, the first passage opening 1116a faces the ninth through hole 1311i, and the third passage opening 1116c, which is connected to the first passage opening 1116a by the first passage, faces the second through hole 1311b. As can be easily understood, the coolant flows through the opposing through holes, passage openings, and passages. The direction of the coolant flow is not specifically limited in this section.

[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 hole, passage opening, and passage.

[0058] If the fifth through-hole 1311e does not face any passage opening 1116, then the first end cover 1112 faces the fifth through-hole 1311e, and the coolant does not flow through the fifth through-hole 1311e.

[0059] To make it clear, the above operating state is only one example of the multiple operating states of the repressive multi-passage solenoid valve 100 provided by this 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 accordingly the relative position of the passage opening 1116 and the through hole 1311 changes, and as the valve core body 111 rotates at different angles, the passage opening 1116 faces different through holes 1311, forming multiple different communication positions, thereby enabling various operating states of the repressive multi-passage solenoid valve 100.

[0060] This application provides a repressive multi-pass solenoid valve comprising a valve core assembly, a valve seat assembly, a sealing unit and a power unit, wherein 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 housing cavity, a valve cover is provided over one of the two openings, and both the valve core assembly and the sealing unit are located in the first housing cavity, the valve core assembly comprises 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, the stopper member is connected to the valve core body, the sealing unit comprises 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 to 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, and at least one passage provided in the valve core body is positioned to face a corresponding through hole provided in the sealing ring, forming a passage for coolant flow. The elastic action of the elastic member maintains contact between the valve core and the sealing ring, reducing the amount of coolant flowing through the circumferential gap between the valve core body and the valve seat. This improves the sealing performance of the valve body and further enhances the temperature control effect of the automobile.

[0061] Furthermore, expressions such as "one embodiment," "example," "exemplary embodiment," and "several embodiments" mentioned in the specification indicate that the embodiments may encompass certain features, structures, or characteristics, but not all embodiments necessarily encompass those specific features, structures, or characteristics. Moreover, such expressions do not necessarily refer to the same embodiment. In addition, when certain features, structures, or characteristics are described with reference to embodiments, it is within the knowledge of those skilled in the art to realize those features, structures, or characteristics in combination with other embodiments described explicitly or implicitly.

[0062] Generally, terminology should be understood at least partially based on its contextual usage. For example, depending on the context, the term "one or more" used in a sentence may be used to describe any feature, structure, or characteristic in a singular sense, or it may be used to describe a combination of features, structures, or characteristics in a plural sense. Similarly, depending on the context, terms such as "one" or "the aforementioned" can be interpreted as conveying either a singular or plural usage.

[0063] It should be easily understood that the terms "above," "more than," and "in addition" in this application should be interpreted in the broadest sense. That is, "above" encompasses not only the meaning of "directly on top of an object" but also the meaning of "being on top of an object with an intermediate feature or layer in between." Similarly, "more than" or "in addition" can encompass not only the meaning of "being above an object" or "being on top of an object" but also the meaning of "being above an object with no intermediate feature or layer" or "being on an object with no intermediate feature or layer (i.e., directly on top of an object)."

[0064] Furthermore, to facilitate explanation, spatial relative terms such as "below," "below," "downward," "above," and "upward" may be used in the text to describe the illustrated relationship between one element or feature and another. These spatial relative terms are intended to encompass not only the orientation shown in the drawings, but also different orientations when the device is used or operated. The device may take on other orientations (such as being rotated 90 degrees or in other orientations), and the spatial relative descriptive terms used in the text should be interpreted accordingly.

[0065] Finally, it should be noted that the above embodiments are for illustrative purposes only and do not limit the technical concepts of the present invention. Although the present invention has been described in detail based on the above embodiments, those skilled in the art can still modify the technical concepts described in the above embodiments or substitute some or all of their technical features with equivalent substitutes, and such modifications or substitutions will not cause the essence of the corresponding technical concepts to deviate from the scope of the technical concepts of the embodiments of the present invention. thing This should be understood.

[0066] This application claims priority to the Chinese patent application filed with the China National Patent Office on March 30, 2023, with application number 2023103571386 and application title "Repressive Multi-Passage Solenoid Valve," all of which are incorporated herein by reference. [Explanation of Symbols]

[0067] 100 - Repression type multi-pass solenoid valve, 110 - Valve core assembly, 111 - Valve core body, 112 - Stopper member, 1111 - Valve core casing, 1112 - First end cover, 1113 - Second end cover, 1114 - Positioning part, 1115 - Second housing cavity, 1116 - Passage opening, 1117 - Second end cover opening, 1121 - Positioning pin, 1122 - First casing, 1123 - Transmission member, 1116a - 1st passageway entrance, 1116b - 2nd passageway entrance, 1116c - 3rd passageway entrance, 1116d - 4th passageway entrance, 1116e - 5th passageway entrance, 1116f - 6th passageway entrance, 1116g - 7th passageway entrance, 1116h - 8th passageway entrance, 120-Valve seat assembly, 121-Valve seat, 122-Valve cover, 1211 - First housing 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 resilient multi-pass solenoid valve comprising a valve core assembly, a valve seat assembly, a sealing unit, and a power unit, wherein the valve seat assembly comprises a valve seat and a valve cover, the valve seat is a rotating member, two openings are provided at both ends of the valve seat to form a first housing cavity, the valve cover covers one of the two openings, and both the valve core assembly and the sealing unit are located within the first housing cavity. The valve core assembly comprises a valve core body and a stopper member, wherein 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 comprises a sealing ring and an elastic member, wherein the shape of the sealing ring matches 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 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 is positioned so that at least one of the passages provided in the valve core body faces the corresponding through-hole provided in the sealing ring, thereby forming a passage for coolant flow, characterized in that it is a resilient multi-pass solenoid valve.

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

3. The cross-section of the plurality of through holes is fan-shaped, The resilient multi-passage solenoid valve according to claim 1 or 2, characterized in that the passage has a plurality of passage openings, the shape of each of the plurality of passage openings is fan-shaped, and the area of ​​each passage opening is smaller than the area of ​​the through-hole.

4. The plurality of through holes are arranged at intervals along the circumferential direction of the sealing ring, The resilient multi-pass solenoid valve according to claim 3, characterized in that some of the through holes are arranged opposite to the passage.

5. The resilient multi-pass solenoid valve according to claim 4, characterized in that the valve core body comprises a first end cover, a valve core casing, and a second end cover, and the first end cover, the valve core casing, and the second end cover are sequentially connected along the axis of the valve seat to form a second housing cavity.

6. The compression-type multi-passage solenoid valve according to claim 5, characterized in that the plurality of passages are located in the second housing cavity, and both ends of the plurality of passages are each connected to the plurality of passage openings, and the plurality of passage openings 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 an opening is provided on the side of the positioning portion opposite to the first end cover. The compression-type multi-pass solenoid valve according to claim 6, characterized in that the stopper member comprises 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 portion.

8. The stopper member further comprises a first casing and a transmission member, the positioning pin and the transmission member are connected to opposing sides of the first casing, the first casing is connected to a second end cover to form a third housing cavity, and the transmission member is connected to the power unit, characterized in that the compression type multi-pass solenoid valve according to claim 7.

9. The resilient multi-pass solenoid valve according to claim 8, characterized in that the elastic member is located within the third housing cavity, and both ends of the elastic member are in contact with the second end cover and the first casing, respectively.

10. The resilient multi-pass solenoid valve according to claim 1 or 2, characterized in that 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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