Water valve assembly and vehicle

Abstract

The utility model provides a water valve assembly and a vehicle, the water valve assembly comprises a valve and a first sealing piece, and the valve comprises a valve body, a valve cover covering the valve body and a valve element contained in the valve body and the valve cover; a closed cavity is formed among the valve body, the valve cover and the valve core; the valve element is at least provided with a first flow channel and a second flow channel, the top of the second flow channel is provided with a balance hole, and the balance hole is communicated with the closed cavity; the first sealing piece is arranged between the valve element and the valve body so as to separate the closed cavity from the first flow channel and the second flow channel. The balance hole is additionally formed in the valve element, pressure balance of all the flow channels is achieved, self-locking sealing is achieved, and therefore the sealing performance of the durable water valve assembly is guaranteed, liquid leakage between the flow channels is reduced, the leakage risk is reduced, the heat exchange efficiency is improved, and the performance and the service life of the whole vehicle are improved.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle parts, and in particular to a water valve assembly and a vehicle. Background Art

[0002] An electronic water valve is a water valve device based on electronic control. It drives the opening and closing of the valve through electronic signals to control and regulate the water flow.

[0003] In existing valves, the sealing of the flow channel is achieved by squeezing the first sealing component between the valve core and the valve body. The valve core usually includes multiple flow channels. Since the pressures of various flow channels in the thermal management system are different and the force-bearing areas of various flow channels of the valve core are different, the valve core will be subjected to axial push-up force, causing the valve core and the first sealing component to separate, thereby causing the sealing of the contact surface between the valve body and the first sealing component to fail, resulting in liquid leakage in each flow channel, and reducing the heat exchange efficiency of the system.

[0004] In addition, when the resistance force on the valve core is too large, the valve core will tilt, which will cause the second seal between the valve cover and the valve core to be eccentric, causing liquid leakage. Especially after wear, the risk of failure of the second seal increases.

[0005] Therefore, it is necessary to design a water valve assembly that can achieve self-locking sealing. Utility Model Content

[0006] The present application provides a water valve assembly and a vehicle, which can achieve self-locking sealing.

[0007] According to a first aspect of an embodiment of this specification, a water valve assembly is provided, comprising:

[0008] A valve, comprising a valve body, a valve cover arranged on the valve body, and a valve core accommodated in the valve body and the valve cover; a closed chamber is formed between the valve body, the valve cover and the valve core; the valve core is provided with at least a first flow channel and a second flow channel, a balancing hole is provided at the top of the second flow channel, and the balancing hole is communicated with the closed chamber;

[0009] A first sealing member is arranged between the valve core and the valve body to separate the sealed chamber from the first flow channel.

[0010] Furthermore, the output end of the valve core extends out of the valve cover; the water valve assembly also includes a second sealing member, which is sleeved on the output end and arranged between the valve core and the valve cover.

[0011] Furthermore, a step portion is provided on the output end, and the second sealing member is arranged on the step portion; a convex ridge extending downward is provided on the bottom of the valve cover, and the convex ridge abuts against the second sealing member and the side of the output end.

[0012] Furthermore, a rib plate is provided at the bottom of the valve body, and the rib plate surrounds a plurality of first through grooves, and the first through grooves are arranged in a ring shape about the center of the valve body;

[0013] Wherein, the valve body is provided with a second through groove adapted to the first through groove, and the first sealing member is provided with a third through groove adapted to the first through groove and the second through groove.

[0014] Furthermore, the first sealing member is arranged in the gap between the ribs, and the height of the ribs is lower than the height of the first sealing member.

[0015] Furthermore, a limit block extending upward is provided on the top of the rib plate;

[0016] An extrusion block is provided at the bottom of the rib plate, and the extrusion block extends toward the adjacent rib plate.

[0017] Furthermore, a protrusion is provided at the bottom of the valve core, and a groove matching the protrusion is provided at the bottom of the corresponding valve body.

[0018] Furthermore, the horizontal cross-sectional area of ​​the second flow channel accounts for more than 1 / 3 of the horizontal cross-sectional area of ​​the flow channel in the valve core.

[0019] Furthermore, the top of the valve core is arc-shaped and bulges toward a side close to the valve cover.

[0020] According to a second aspect of an embodiment of the present specification, a vehicle is provided, comprising the water valve assembly described in the first aspect above.

[0021] The present application has the following beneficial effects: by adding a balancing hole on the valve core, pressure balance of each flow channel is achieved, and self-locking sealing is realized, thereby ensuring the sealing performance of the water valve assembly after durability, reducing liquid leakage between the flow channels, reducing the risk of external leakage, improving heat exchange efficiency, and improving the performance and life of the entire vehicle.

[0022] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the specification and, together with the description, serve to explain the principles of the specification.

[0024] Figure 1 is an exploded schematic diagram of the water valve assembly of the present application;

[0025] Figure 2 is a cross-sectional view of the water valve assembly of the present application;

[0026] Figure 3It is a structural schematic diagram of the valve core of the present application;

[0027] Figure 4 It is a structural schematic diagram of the first sealing member of the present application;

[0028] Figure 5 is a cross-sectional view of the valve body of the present application;

[0029] Figure 6 It is a schematic diagram of the flow channel opening in this application.

[0030] Description of reference numerals:

[0031] 10-valve; 11-valve body; 111-second through groove; 112-groove; 12-valve cover; 121-convex ridge; 13-valve core; 131-first flow channel; 132-second flow channel; 1321-balancing hole; 133-third flow channel; 134-output end; 1341-step portion; 135-protrusion; 14-sealed chamber;

[0032] 20-first sealing member; 21-third through groove;

[0033] 30 - second sealing member;

[0034] 40-rib plate; 41-first through slot; 42-limiting block; 43-extrusion block;

[0035] 51 - first flow channel opening; 52 - second flow channel opening; 53 - third flow channel opening; 54 - fourth flow channel opening; 55 - fifth flow channel opening; 56 - sixth flow channel opening. DETAILED DESCRIPTION

[0036] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this specification. Instead, they are merely examples of devices and methods consistent with some aspects of this specification as detailed in the appended claims.

[0037] The terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit this specification. The singular forms "a", "the" and "the" used in this specification and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0038] It should be understood that although the terms first, second, third, etc. may be used in this specification to describe various information, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of this specification, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0039] Next, the embodiments of this specification are described in detail.

[0040] Reference Figure 1-2 As shown, this embodiment discloses a water valve assembly, which includes a valve 10 and a first sealing member 20. The valve 10 includes a valve body 11, a valve cover 12 covered on the valve body 11, and a valve core 13 accommodated in the valve body 11 and the valve cover 12. By adding a balancing hole 1321 on the valve core 13, the pressure balance of each flow channel is achieved, and a self-locking seal is achieved, thereby ensuring the sealing performance of the water valve assembly after durability, reducing liquid leakage between the flow channels, reducing the risk of external leakage, improving heat exchange efficiency, and improving the performance and life of the entire vehicle.

[0041] Specifically:

[0042] A closed chamber 14 is formed between the valve body 11, the valve cover 12 and the valve core 13; at least a first flow channel 131 and a second flow channel 132 are provided on the valve core 13, and a balancing hole 1321 is provided at the top of the second flow channel 132, and the balancing hole 1321 is connected to the closed chamber 14; in addition, a first sealing member 20 is arranged between the valve core 13 and the valve body 11 to separate the closed chamber 14 from the first flow channel 131.

[0043] Considering that the valve core 13 realizes switching of different flow channels by rotation, the valve core 13 is movably connected to the valve body 11 and the valve cover 12. In order to improve the sealing performance of the closed chamber 14, a second sealing member 30 is arranged between the valve core 13 and the valve cover 12 in this embodiment.

[0044] Reference Figure 2 As shown, the output end 134 of the valve core 13 extends out of the valve cover 12, and then is connected to the actuator, and the valve core 13 is driven to rotate by the actuator to achieve the switching of different flow channels. The corresponding valve cover 12 is provided with a through hole for the output end 134 to extend out, so in order to ensure the sealing between the valve cover 12 and the output end 134. The water valve assembly achieves sealing by sleeve-mounting the second sealing member 30 on the output end 134 and arranging it between the valve core 13 and the valve cover 12.

[0045] In this embodiment, a step portion 1341 is provided on the output end 134 , and the second sealing member 30 is arranged on the step portion 1341 to support the second sealing member 30 and prevent the second sealing member 30 from falling.

[0046] Furthermore, the bottom of the valve cover 12 is provided with a ridge 121 extending downward, and the ridge 121 abuts against the side of the second sealing member 30 and the output end 134. In this way, the second sealing member 30 is positioned laterally to further improve the sealing between the valve cover 12 and the output end 134.

[0047] In addition to the above-mentioned considerations of the sealing between the valve cover 12 and the output end 134, it is also necessary to consider the sealing between the closed chamber 14 and the flow channel of the valve core 13 to prevent the liquid in the closed chamber 14 and the liquid in the flow channel of the valve core 13 from circulating, thereby causing leakage of the liquid in the flow channel of the valve core 13.

[0048] Reference Figure 4-5 As shown, a rib plate 40 is provided at the bottom of the valve body 11, and the rib plate 40 encloses a plurality of first through grooves 41, and the first through grooves 41 are arranged in an annular manner about the center of the valve body 11; wherein, a second through groove 111 adapted to the first through groove 41 is provided on the valve body 11, and a third through groove 21 adapted to the first through groove 41 and the second through groove 111 is provided on the first sealing member 20. That is, the first through groove 41, the second through groove 111 and the third through groove 21 are connected. It should be noted that, in order to improve the overall structural strength of the valve body 11, in this embodiment, the first through groove 41 is connected to the second through groove 111 and the third through groove 21 in an intermittent arrangement, that is, one through groove and one closed groove are arranged in sequence at intervals.

[0049] Further, the first sealing member 20 is arranged in the gap between the ribs 40, and the height of the ribs 40 is lower than the height of the first sealing member 20. In this way, when the valve core 13 pre-presses the first sealing member 20 downward, the valve core 13 can have a pre-pressing stroke.

[0050] In order to improve the stability of the first seal 20 in the gap between the ribs 40, in this embodiment, a limit block 42 extending upward is provided at the top of the rib 40; in addition, an extrusion block 43 is provided at the bottom of the rib 40, and the extrusion block 43 extends toward the adjacent rib 40. Of course, these are just two ways to stabilize the position of the first seal 20, and the specific way to stabilize the first seal 20 in the gap between the ribs 40 is not limited here.

[0051] Reference Figure 2-3 As shown, in this embodiment, the valve core 13 is provided with a first flow channel 131, a second flow channel 132 and a third flow channel 133, wherein a balancing hole 1321 is provided at the top of the second flow channel 132. The diameter of the balancing hole 1321 is less than 2 mm, and is used to balance the internal pressure of the water valve assembly, increase the downward pressure of the valve core 13, and improve the sealing performance.

[0052] Specifically, refer to Figure 3 and Figure 6As shown, combined with the following diagram, it shows the communication relationship between the first flow channel opening 51, the second flow channel opening 52, the third flow channel opening 53, the fourth flow channel opening 54, the fifth flow channel opening 55 and the sixth flow channel opening 56 at different rotation angles of the valve core 13.

[0053] Water valve can be realized in mode

[0054] 35° Mode 1 6→3 4→1 5→2 125° Mode 2 4→3 6→1 5→2 5° Mode 3 5→3 6→2 4→1 95° Mode 4 4→3 5→1 6→2

[0055] As shown in the figure above, when the second flow channel 132 is connected to the first flow channel opening 51 and the sixth flow channel opening 56, the rotation angle of the valve core 13 is defined as 95°; when the valve core 13 continues to rotate clockwise by 30° and is at 125°, the corresponding second flow channel 132 is connected to the first flow channel opening 51 and the fifth flow channel opening 55. What is described here is only one possible implementation method, including but not limited to this, and it needs to be adjusted in combination with the number of flow channels, the number of flow channels in the valve core 13, and the rotation angle of the valve core 13.

[0056] In this embodiment, different flow channels are formed by hollowing out the valve core 13, wherein a balancing hole 1321 is provided at the top of the second flow channel 132, and the liquid passes through the flow channel opening of the valve body 11, then passes through the flow channel of the valve core 13, and then flows out from other flow channel openings of the valve body 11. At the same time, when the valve core 13 rotates, switching between different valve ports can be achieved to achieve switching between different modes of the system.

[0057] However, considering that the liquid has a certain pressure in the flow channel, when the pressurized liquid flows through the valve core 13, each flow channel will always generate upward pressure, causing the valve core 13 to move away from the first seal 20 and the valve body 11, and the contact pressure of the first seal 20 between the valve body 11 and the valve core 13 is reduced, causing liquid leakage between different circuits.

[0058] Therefore, in this embodiment, a balancing hole 1321 is set on the second flow channel 132 of the valve core 13. When the liquid flows through the valve 10, the liquid flows through the balancing hole 1321 to the closed chamber 14 formed among the valve body 11, the first sealing member 20, the valve core 13, the second sealing member 30 and the valve cover 12. The pressure in the closed chamber 14 is always consistent with the pressure in the second flow channel 132. At this time, the valve core 13 will be subjected to a downward thrust. Because the projected area of ​​the closed chamber 14 is larger than the projected area of ​​the second flow channel 132, the valve core 13 is moved downward by the liquid pressure to achieve a self-locking seal.

[0059] As shown in the above diagram, in this embodiment, when the second flow channel 132 connects the sixth flow channel opening and the third flow channel opening 53, and the first flow channel 131 connects the fifth flow channel opening and the second flow channel opening 52, assuming that the liquid pressures of the first flow channel 131 and the second flow channel 132 are of the same magnitude, the first flow channel 131 and the second flow channel 132 are subjected to upward pressure, and the closed chamber 14 is subjected to downward pressure. Because the projected area of ​​the closed chamber 14 is larger than the sum of the projected areas of the first flow channel 131 and the second flow channel 132 in the valve core 13, the valve core 13 is still subjected to downward pressure at this time, thereby ensuring the sealing performance and realizing a self-locking seal.

[0060] Generally speaking, in each mode, the second flow channel 132 is set in a circuit with a higher liquid pressure, and in each mode, the balancing flow channel is always in a working circuit to obtain a greater downforce and improve the sealing performance.

[0061] In this embodiment, a protrusion 135 is provided at the bottom of the valve core 13, and a groove 112 matching the protrusion 135 is provided at the bottom of the corresponding valve body 11. In this way, the radial movement of the valve core 13 during the rotation process can be further limited, and the rotation of the valve core 13 is more stable.

[0062] In this embodiment, the horizontal cross-sectional area of ​​the second flow channel 132 accounts for more than 1 / 3 of the horizontal cross-sectional area of ​​the flow channel in the valve core 13. For example, the horizontal cross-sectional area of ​​the second flow channel 132 accounts for 1 / 2, 2 / 3, etc. of the horizontal cross-sectional area of ​​the flow channel in the valve core 13.

[0063] In this embodiment, the top of the valve core 13 is arc-shaped and convex toward the side close to the valve cover 12. In this way, the contact area between the water flow and the top of the valve core in the closed chamber 14 can be increased, thereby increasing the downward pressure on the valve core 13 to improve the sealing effect.

[0064] This embodiment also provides a vehicle using the water valve assembly, that is, by adding a balancing hole 1321 on the valve core 13, pressure balance of each flow channel is achieved, and self-locking sealing is achieved, thereby ensuring the sealing performance of the water valve assembly after durability, reducing liquid leakage between flow channels, reducing the risk of external leakage, improving heat exchange efficiency, and improving the performance and life of the entire vehicle.

[0065] Those skilled in the art will readily appreciate other embodiments of the specification after considering the specification and practicing the utility model claimed herein. The specification is intended to cover any variations, uses or adaptations of the specification that follow the general principles of the specification and include common knowledge or customary techniques in the art that are not claimed in the specification. The specification and examples are to be considered exemplary only, and the true scope and spirit of the specification are indicated by the following claims.

[0066] It should be understood that the present description is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present description is limited only by the appended claims.

[0067] The above description is only a preferred embodiment of this specification and is not intended to limit this specification. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this specification should be included in the scope of protection of this specification.

Claims

1. A water valve assembly, characterized in that: include: A valve (10) comprises a valve body (11), a valve cover (12) covered on the valve body (11), and a valve core (13) accommodated in the valve body (11) and the valve cover (12); a closed chamber (14) is formed between the valve body (11), the valve cover (12) and the valve core (13); the valve core (13) is provided with at least a first flow channel (131) and a second flow channel (132); a balancing hole (1321) is provided at the top of the second flow channel (132), and the balancing hole (1321) is communicated with the closed chamber (14); A first sealing member (20) is arranged between the valve core (13) and the valve body (11) to separate the sealed chamber (14) from the first flow channel (131).

2. The water valve assembly according to claim 1, characterized in that: The output end (134) of the valve core (13) extends out of the valve cover (12); the water valve assembly further comprises a second sealing member (30), the second sealing member (30) being sleeved on the output end (134) and arranged between the valve core (13) and the valve cover (12).

3. The water valve assembly according to claim 2, characterized in that: The output end (134) is provided with a step portion (1341), and the second sealing member (30) is arranged on the step portion (1341); the bottom of the valve cover (12) is provided with a ridge (121) extending downward, and the ridge (121) abuts against the second sealing member (30) and the side of the output end (134).

4. The water valve assembly according to claim 1, characterized in that: A rib plate (40) is provided at the bottom of the valve body (11), the rib plate (40) encloses a plurality of first through grooves (41), and the first through grooves (41) are arranged in a ring shape about the center of the valve body (11); The valve body (11) is provided with a second through groove (111) adapted to the first through groove (41), and the first sealing member (20) is provided with a third through groove (21) adapted to the first through groove (41) and the second through groove (111).

5. The water valve assembly according to claim 4, characterized in that: The first sealing member (20) is arranged in the gap between the rib plates (40), and the height of the rib plates (40) is lower than the height of the first sealing member (20).

6. The water valve assembly according to claim 5, characterized in that: A limit block (42) extending upward is provided on the top of the rib plate (40); An extrusion block (43) is provided at the bottom of the rib plate (40), and the extrusion block (43) extends toward the adjacent rib plate (40).

7. The water valve assembly according to claim 1, characterized in that: The bottom of the valve core (13) is provided with a protrusion (135), and the bottom of the corresponding valve body (11) is provided with a groove (112) adapted to the protrusion (135).

8. The water valve assembly according to claim 1, characterized in that: The horizontal cross-sectional area of ​​the second flow channel (132) accounts for more than 1 / 3 of the horizontal cross-sectional area of ​​the flow channel in the valve core (13).

9. The water valve assembly according to claim 1, characterized in that: The top of the valve core (13) is arc-shaped and bulges toward a side close to the valve cover (12).

10. A vehicle, characterized in that: A water valve assembly comprising any one of claims 1 to 9.

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