Solenoid valve, thermal management system and vehicle

Abstract

The utility model relates to an electromagnetic valve, a heat management system and a vehicle, the electromagnetic valve comprises an integrated valve body and a valve seat mounted on the integrated valve body, the integrated valve body is provided with a flow channel and a mounting cavity communicated with the flow channel, and at least part of the valve seat extends into the mounting cavity and is in threaded connection with the integrated valve body; the electromagnetic valve further comprises a filling part arranged between the outer circumferential face of the valve seat and the inner circumferential face of the installation cavity so that the threaded connection position of the valve seat and the integrated valve body can be separated from the flow channel. According to the design, when the valve seat is installed on the integrated valve body, metal chippings are formed at the threaded connection position of the valve seat and the integrated valve body due to mutual cutting of threads, the filling part can prevent the metal chippings from entering a flow channel through a gap between the valve seat and the integrated valve body, and therefore the electromagnetic valve, a heat management system and the like are protected.

Description

Technical Field

[0001] The present disclosure relates to the technical field of solenoid valves, and in particular, to a solenoid valve, a thermal management system and a vehicle. Background Art

[0002] The solenoid valve includes an integrated valve body and a valve seat installed on the integrated valve body, and the valve seat is used to be installed on components such as a valve core. The integrated valve body is provided with a mounting hole for the valve seat to extend into, the inner side of the mounting hole is connected to the flow channel of the solenoid valve, and is provided with an internal thread, and the valve seat is provided with an external thread that matches the internal thread.

[0003] The integrated valve body is usually made of aluminum, and the valve seat is usually made of magnetic steel. The hardness of steel is much greater than that of aluminum. In the process of screwing the internal and external threads, the external threads of the valve seat can easily cut off the aluminum of the internal threads of the integrated valve body, forming aluminum chips. The aluminum chips will fall into the flow channel of the integrated valve body along the gap between the mounting hole and the valve seat, and then enter the flow channel of the entire thermal management system, causing the solenoid valve to get stuck and the injection molding machine to wear, seriously affecting the service life of the thermal management system. Utility Model Content

[0004] An object of the present disclosure is to provide a solenoid valve, a thermal management system, and a vehicle to at least partially solve the problems existing in the related art.

[0005] In order to achieve the above-mentioned objectives, the present disclosure provides a solenoid valve, comprising an integrated valve body and a valve seat installed on the integrated valve body, the integrated valve body being provided with a flow channel and an installation cavity connected to the flow channel, the valve seat at least partially extending into the installation cavity and being threadedly connected to the integrated valve body, wherein the solenoid valve also includes a filling portion arranged between the outer circumferential surface of the valve seat and the inner circumferential surface of the installation cavity to isolate the threaded connection position between the valve seat and the integrated valve body from the flow channel.

[0006] Optionally, the inner circumferential surface of the installation cavity is provided with an internal thread, and the outer circumferential surface of the valve seat is provided with an external thread matching the internal thread.

[0007] Optionally, the mounting cavity is constructed as a stepped hole having a large diameter section and a small diameter section, the large diameter section is adjacent to the opening of the mounting cavity and the inner circumferential surface of the large diameter section is formed with the internal thread; the portion of the valve seat extending into the mounting cavity is constructed as a stepped shaft shape matching the shape of the mounting cavity, wherein the portion of the valve seat corresponding to the large diameter section is formed with the external thread; the filling portion is arranged between the portion of the valve seat corresponding to the small diameter section and the small diameter section.

[0008] Optionally, the small-diameter section is formed with a step surface facing the opening of the installation cavity, and the valve seat extends into the installation cavity and abuts against the step surface.

[0009] Optionally, the valve seat includes: a valve seat body having a radially protruding expanded diameter portion; and a pressure ring having the external thread, the pressure ring being used to press the expanded diameter portion to the step surface, and the filling portion is arranged around the expanded diameter portion and fits to the inner circumferential surface of the small diameter section.

[0010] Optionally, the filling portion is a sleeve that is sleeved on the outer circumferential surface of the expanded diameter portion and fits on the inner circumferential surface of the small diameter section.

[0011] Optionally, the small diameter section includes a first convex ring and a second convex ring formed on the inner circumferential surface of the mounting cavity and extending inward, the second convex ring is located on the side of the first convex ring away from the opening of the mounting cavity, and the inner diameter of the second convex ring is smaller than the inner diameter of the first convex ring, and the surface of the second convex ring facing the opening of the mounting cavity forms the step surface, wherein one end of the sleeve abuts against the step surface, and the other end extends into the gap between the pressure ring and the expanded diameter portion, and the outer circumferential surface of the sleeve fits with the inner circumferential surface of the first convex ring.

[0012] Optionally, the pressure ring is configured as a cap-like structure that surrounds the outer side of the sleeve and extends radially inward to press against the expanded diameter portion.

[0013] Optionally, the pressure ring is made of the same material as that of the integrated valve body.

[0014] Optionally, the pressure ring and the integrated valve body are made of aluminum.

[0015] Optionally, the valve seat body is made of steel.

[0016] Optionally, a lower edge of a portion of the pressure ring extending into the installation cavity is formed with a chamfer.

[0017] Optionally, it further comprises a valve body having a valve core assembly, wherein the valve body is fixedly connected to the valve seat.

[0018] According to a second aspect of the present disclosure, a thermal management system is provided, comprising a fluid channel and the above-mentioned solenoid valve, wherein the flow channel is connected to the fluid channel.

[0019] According to a third aspect of the present disclosure, a vehicle is provided, comprising the above-mentioned thermal management system.

[0020] Through the above technical solution, when the valve seat is installed in the installation cavity of the integrated valve body, the threads at the threaded connection position of the valve seat and the integrated valve body cut each other to form metal fragments. Since the filling part can separate the threaded connection position from the flow channel, the filling part can limit the metal fragments from entering the flow channel through the gap between the valve seat and the integrated valve body, thereby protecting the solenoid valve. In particular, when the solenoid valve is used in a thermal management system, it can also protect the thermal management system.

[0021] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0023] Figure 1 is a schematic structural diagram of a solenoid valve exemplarily shown according to the present disclosure;

[0024] Figure 2 yes Figure 1 An exploded view of the solenoid valve shown in FIG.

[0025] Figure 3 yes Figure 1 A cross-sectional view of a solenoid valve shown in FIG.

[0026] Figure 4 yes Figure 3 A partial enlarged view of part A;

[0027] Figure 5 yes Figure 1 Schematic diagram of the valve body and valve seat of the solenoid valve shown in FIG.

[0028] Description of Reference Numerals

[0029] 100-integrated valve body; 110-installation cavity; 120-flow channel; 130-first convex ring; 140-second convex ring; 141-step surface; 200-valve seat; 210-valve seat body; 211-expanded diameter portion; 220-pressure ring; 230-valve body; 310-external thread; 320-internal thread; 400-filling portion; 401-sleeve; 500-chamfer. DETAILED DESCRIPTION

[0030] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0031] In the present disclosure, unless otherwise stated, the directional words used, such as "inside, outside", "upper, lower", etc., may be based on the structure of the relevant parts themselves, or may be based on the orientation of the relevant parts when used in combination. For example, the filling portion is a sleeve that is sleeved on the "outer circumference" of the expanded diameter portion and fits against the "inner circumference" of the small diameter section. The "outer circumference" here refers to the surface of the outer contour of the expanded diameter portion, and the "inner circumference" here refers to the inner surface of the small diameter section. The "lower edge" of the portion of the pressure ring extending into the installation cavity is formed with a chamfer. The "lower edge" here refers to the edge of the frontmost portion of the pressure ring extending into the installation cavity, that is, the edge of the portion that first enters the installation cavity when the pressure ring is extended into the installation cavity. The "lower" here is based on Figure 3 This refers to the direction of the drawing, and does not mean that the pressure ring can only move downward into the installation cavity when in use.

[0032] In the present disclosure, the terms "first", "second", etc. are used to distinguish one element from another element, and do not have order and importance. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0033] Reference Figure 1-Figure 5 The present disclosure exemplarily shows a solenoid valve, including an integrated valve body 100 and a valve seat 200 installed on the integrated valve body 100, the integrated valve body 100 is provided with a flow channel 120 and a mounting cavity 110 communicating with the flow channel 120, the valve seat 200 at least partially extends into the mounting cavity 110 and is threadedly connected to the integrated valve body 100. The solenoid valve further includes a filling portion 400 disposed between the outer circumferential surface of the valve seat 200 and the inner circumferential surface of the mounting cavity 110, so as to isolate the threaded connection position of the valve seat 200 and the integrated valve body 100 from the flow channel 120.

[0034] In order to facilitate the understanding of the technical solution, the basic structure of the solenoid valve is introduced here. In addition to the above-mentioned integrated valve body 100 and valve seat 200, the solenoid valve also includes a valve body including a valve core assembly, etc., which will be described below. The valve body can be fixed to the valve seat 200, and indirectly fixed to the integrated valve body 100 through the valve seat 200. Among them, when the valve seat 200 is fixed to the integrated valve body 100, the valve body can extend into the interior of the integrated valve body 100 through the installation cavity 110 and form a matching relationship with the flow channel 120. In addition, it should be noted that the above-mentioned "installation cavity 110 connected to the flow channel 120" does not mean that the liquid in the flow channel can flow to the installation cavity 110, but means that the valve body can extend into the interior of the integrated valve body 100 through the installation cavity 110 and form a matching relationship with the flow channel 120. Since the structure and principle of the solenoid valve are well known to those skilled in the art, they are not described here.

[0035] In the embodiment of the present disclosure, the filling part 400 may be a sleeve 401 described below. In addition, in some other embodiments, the filling part 400 may also be a sealing ring filled in the gap between the valve seat 200 and the integrated valve body 100.

[0036] In the embodiment of the present disclosure, the threaded connection position of the valve seat 200 and the integrated valve body 100 may be located inside the installation cavity 110, or, in some other embodiments, the threaded connection position of the valve seat 200 and the integrated valve body 100 may also be located outside the installation cavity 110. The structure of the valve seat 200 and the integrated valve body 100 and the specific threaded connection position will be described in the specific embodiments below.

[0037] By using the above technical solution, when the valve seat 200 is installed in the installation cavity 110 of the integrated valve body 100, the threads of the threaded connection position of the valve seat 200 and the integrated valve body 100 cut each other to form metal fragments. Since the filling part 400 can separate the threaded connection position from the flow channel 120, the filling part 400 can limit the metal fragments from entering the flow channel 120 through the gap between the valve seat 200 and the integrated valve body 100, thereby protecting the solenoid valve. In particular, when the solenoid valve is used in a thermal management system, it can also protect the thermal management system.

[0038] Reference Figure 3 In the embodiment of the present disclosure, the inner circumference of the installation cavity 110 may be provided with an internal thread 320, and the outer circumference of the valve seat 200 may be provided with an external thread 310 that matches the internal thread 320. The valve seat 200 may be detachably installed in the installation cavity 110 through the cooperation between the internal thread 320 and the external thread 310. In this case, the threaded connection position of the valve seat 200 and the integrated valve body 100 is located on the inner side of the installation cavity 110, and the metal scraps generated at this position are easy to directly enter the flow channel 120 through the gap between the outer circumference of the valve seat 200 and the inner circumference of the installation cavity 110, and the filling part 400 can block the path to prevent the metal scraps from entering the flow channel 120.

[0039] Reference Figure 1-Figure 5In the embodiment of the present disclosure, the installation cavity 110 can be constructed as a stepped hole having a large diameter section and a small diameter section, the large diameter section is placed adjacent to the opening of the installation cavity 110 and the inner circumferential surface of the large diameter section can be formed with an internal thread 320. The portion of the valve seat 200 extending into the installation cavity 110 can be constructed as a stepped shaft matching the shape of the installation cavity 110, wherein the portion of the valve seat 200 corresponding to the large diameter section is formed with an external thread 310, and the filling portion 400 can be disposed between the portion of the valve seat 200 corresponding to the small diameter section and the small diameter section to block metal scraps of the large diameter section from entering the flow channel 120. It should be noted that the small diameter section can be a stepped shape including the first convex ring and the second convex ring mentioned below, or can also be a constant diameter shape, as long as its inner diameter is smaller than the inner diameter of the large diameter section.

[0040] Reference Figure 3 and Figure 4 In the embodiment of the present disclosure, the small diameter section may be formed with a step surface 141 facing the opening of the installation cavity 110, and the valve seat 200 may extend into the installation cavity 110 and abut against the step surface 141. The step surface 141 may serve as a stopper for the valve seat 200, thereby preventing the valve seat 200 from excessively extending into the installation cavity 110.

[0041] The present disclosure does not limit the step surface 141. Figure 3 and Figure 4 In the illustrated embodiment, the valve seat 200 may include a valve seat body 210 having a radially protruding enlarged diameter portion 211, and a pressure ring 220 having an external thread 310, the pressure ring 220 being used to press the enlarged diameter portion 211 to the step surface 141, and the filling portion 400 may be arranged around the enlarged diameter portion 211 and fit to the inner circumference of the small diameter section. By arranging the filling portion 400 between the enlarged diameter portion 211 and the inner circumference of the small diameter section, the threaded connection position and the flow channel 120 may be separated, thereby preventing metal chips at the threaded connection position from entering the flow channel 120.

[0042] It should be noted that the present disclosure does not limit the connection method between the filling part 400 and the outer circumference of the expanded diameter part 211 and the inner circumference of the small diameter section. For example, the filling part 400 and the outer circumference of the expanded diameter part 211 and the inner circumference of the small diameter section may have a bonding relationship to achieve a sealing effect. In addition, in some other embodiments, the filling part 400 and the outer circumference of the expanded diameter part 211 and the inner circumference of the small diameter section may not have a connection relationship, and the fit and seal are achieved only through size design.

[0043] Reference Figure 2-Figure 4In the embodiment of the present disclosure, the filling part 400 can be a sleeve 401 which is sleeved on the outer circumference of the expanded diameter part 211 and fits on the inner circumference of the small diameter section. With such a design, during installation, the valve seat body 210 can be first inserted into the installation cavity 110, and then the sleeve 401 can be sleeved on the outer circumference of the expanded diameter part 211 of the valve seat body 210, and the outer circumference of the sleeve 401 fits on the inner circumference of the small diameter section, and then the pressure ring 220 can be extended between the inner circumference of the large diameter section and the outer circumference of the expanded diameter part 211. The sleeve 401 is located in the gap between the expanded diameter part 211 and the small diameter section, which can isolate the threaded connection position from the flow channel 120, and the operation is convenient and simple.

[0044] The present disclosure does not limit the material of the sleeve 401, which may be a metal sleeve or a plastic sleeve, as long as it can play a partitioning role.

[0045] Reference Figure 3 and Figure 4 In the embodiment of the present disclosure, the small diameter section may include a first convex ring 130 and a second convex ring 140 formed on the inner circumference of the mounting cavity 110 and extending inwardly, the second convex ring 140 is located on the side of the first convex ring 130 away from the opening of the mounting cavity 110, and the inner diameter of the second convex ring 140 is smaller than the inner diameter of the first convex ring 130, and the surface of the second convex ring 140 facing the opening of the mounting cavity 110 may form a step surface 141. Among them, one end of the sleeve 401 abuts against the step surface 141, and the other end extends to the gap between the pressure ring 220 and the expanded diameter portion 211, and the outer circumference of the sleeve 401 fits with the inner circumference of the first convex ring 130. Specifically, referring to Figure 4 , the axial length of the enlarged diameter portion 211 can be greater than the axial length of the first convex ring 130, the end of the sleeve 401 away from the second convex ring 140 can extend into the gap between the enlarged diameter portion 211 and the pressure ring 220, and the outer circumference of the sleeve 401 fits with the outer circumference of the second convex ring 140 to form a receiving space surrounded by the inner circumference of the large diameter section, the surface of the first convex ring 130 facing the opening, and the sleeve 401. The receiving space is used for the pressure ring 220 to extend into, and can store metal scraps formed by cutting the internal thread 320 and the external thread 310, thereby preventing the metal scraps from entering the flow channel 120. It should be noted that Figure 4 In the illustrated embodiment, the end of the sleeve 401 away from the step surface 141 can extend into the gap between the expanded diameter portion 211 and the pressure ring 220 until it is close to the opening position of the mounting cavity 110, thereby increasing the axial length of the accommodating space and preventing metal chips from entering the flow channel 120 from the side of the sleeve 401 away from the step surface 141.

[0046] The present disclosure does not limit the specific structure of the pressure ring 220. Figure 1-Figure 5In the illustrated embodiment, the pressure ring 220 may be configured as a cap-like structure surrounding the outer side of the sleeve 401 and extending radially inward to press against the expanded diameter portion 211 .

[0047] In order to prevent the internal thread 320 and the external thread 310 from cutting the other with greater hardness and causing metal debris when they are matched, in the embodiment of the present disclosure, the material of the pressure ring 220 and the integrated valve body 100 can be the same, thereby reducing the cutting debris generated when the two are matched.

[0048] In some embodiments, the material of the pressure ring 220 and the integrated valve body 100 can be aluminum, that is, the internal thread 320 and the external thread 310 are respectively made of aluminum. Aluminum has the advantages of light weight and easy machining.

[0049] The working principle of the solenoid valve is to control the opening and closing of the valve by applying electromagnetic force, and the magnitude of the electromagnetic force is related to the magnetic conductivity of the valve seat 200. Therefore, the magnetic conductivity of the valve seat 200 can make the sensitivity of the solenoid valve higher and increase the magnitude of the electromagnetic force, thereby improving the control accuracy of the valve. At the same time, the magnetically conductive valve seat 200 can improve the sealing performance of the solenoid valve, reduce the occurrence of leakage, and ensure the reliable operation of the equipment. Therefore, in the embodiment of the present disclosure, the material of the valve seat body 210 can be steel.

[0050] In order to facilitate the insertion of the pressure ring 220 into the space between the outer circumference of the sleeve 401 and the inner circumference of the large diameter section to avoid collision and interference, etc., refer to Figure 3 In the embodiment of the present disclosure, the lower edge of the portion of the pressing ring 220 extending into the installation cavity 110 may be formed with a chamfer 500. Through the chamfer design, when the pressing ring 220 is extended into the installation cavity 110, it can be easily aligned and the operation is quick.

[0051] As described above, in the embodiment of the present disclosure, the solenoid valve may further include a valve body 230 having a valve core assembly, and the valve body 230 may be fixedly connected to the valve seat 200 , specifically, the valve body 230 and the valve seat body 210 may be welded.

[0052] According to a second aspect of the present disclosure, a thermal management system is provided, including a fluid channel and the above-mentioned solenoid valve, wherein the flow channel 120 can be connected to the fluid channel. Since the thermal management system has all the beneficial effects of the above-mentioned solenoid valve, they are not described in detail here.

[0053] According to a third aspect of the present disclosure, a vehicle is provided, comprising the above-mentioned thermal management system. Since the vehicle has all the beneficial effects of the above-mentioned thermal management system, they are not described in detail here.

[0054] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0055] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0056] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A solenoid valve, characterized in that: The valve seat comprises an integrated valve body and a valve seat installed on the integrated valve body, wherein the integrated valve body is provided with a flow channel and a mounting cavity communicating with the flow channel, and the valve seat at least partially extends into the mounting cavity and is threadedly connected to the integrated valve body. Wherein, the solenoid valve further comprises a filling portion arranged between the outer circumferential surface of the valve seat and the inner circumferential surface of the mounting cavity so as to isolate the threaded connection position between the valve seat and the integrated valve body from the flow channel.

2. The solenoid valve according to claim 1, characterized in that: The inner circumferential surface of the installation cavity is provided with an internal thread, and the outer circumferential surface of the valve seat is provided with an external thread matching the internal thread.

3. The solenoid valve according to claim 2, characterized in that: The installation cavity is constructed as a stepped hole with a large diameter section and a small diameter section, the large diameter section is adjacent to the opening of the installation cavity and the inner circumferential surface of the large diameter section is formed with the internal thread; the portion of the valve seat extending into the installation cavity is constructed as a stepped shaft matching the shape of the installation cavity, wherein the portion of the valve seat corresponding to the large diameter section is formed with the external thread; the filling portion is arranged between the portion of the valve seat corresponding to the small diameter section and the small diameter section.

4. The solenoid valve according to claim 3, characterized in that: The small diameter section is formed with a step surface facing the opening of the installation cavity, and the valve seat extends into the installation cavity and abuts against the step surface.

5. The solenoid valve according to claim 4, characterized in that: The valve seat comprises: A valve seat body having a radially protruding enlarged diameter portion; and A pressing ring is provided with the external thread, and the pressing ring is used to press the expanded diameter portion onto the step surface. The filling portion is annularly arranged on the enlarged diameter portion and is attached to the inner circumferential surface of the small diameter section.

6. The solenoid valve according to claim 5, characterized in that: The filling part is a sleeve which is sleeved on the outer circumferential surface of the enlarged diameter portion and is in contact with the inner circumferential surface of the small diameter section.

7. The solenoid valve according to claim 6, characterized in that: The small diameter section includes a first convex ring and a second convex ring formed on the inner circumferential surface of the mounting cavity and extending inward, the second convex ring is located on the side of the first convex ring away from the opening of the mounting cavity, and the inner diameter of the second convex ring is smaller than the inner diameter of the first convex ring, and the surface of the second convex ring facing the opening of the mounting cavity forms the step surface, wherein one end of the sleeve abuts against the step surface, and the other end extends into the gap between the pressure ring and the expanded diameter portion, and the outer circumferential surface of the sleeve fits with the inner circumferential surface of the first convex ring.

8. The solenoid valve according to claim 6, characterized in that: The pressure ring is constructed as a cap-shaped structure surrounding the outer side of the sleeve and extending radially inward to press the expanded diameter portion.

9. The solenoid valve according to claim 6, characterized in that: The pressure ring is made of the same material as that of the integrated valve body.

10. The solenoid valve according to claim 9, characterized in that: The pressure ring and the integrated valve body are made of aluminum.

11. The solenoid valve according to claim 6, characterized in that: The valve seat body is made of steel.

12. The solenoid valve according to claim 6, characterized in that: A lower edge of the portion of the pressure ring extending into the installation cavity is formed with a chamfer.

13. The solenoid valve according to claim 1, characterized in that: It also includes a valve body having a valve core assembly, wherein the valve body is fixedly connected to the valve seat.

14. A thermal management system, characterized in that: It comprises a fluid channel and the solenoid valve according to any one of claims 1 to 13, wherein the flow path is connected to the fluid channel.

15. A vehicle, characterized in that: Includes the thermal management system of claim 14.

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