A multi-way valve

Abstract

The application provides a multi-way valve, and relates to the technical field of valves. The multi-way valve comprises a valve seat, a rotating shaft, a rotating disc and an actuator. The rotating disc is rotatably arranged in the valve seat. The rotating shaft passes through the valve seat and the rotating disc. The rotating shaft is coaxially connected with the rotating disc. The actuator is arranged on one side of the valve seat. The output end of the actuator is provided with an adapter. The adapter is connected with the rotating shaft. The valve seat is provided with a limiting part to limit the rotation of the adapter between a first position and a second position. The multi-way valve can realize relatively accurate reversing.

Description

Technical Field

[0001] This application relates to the field of valve technology, and more specifically, to a multi-way valve. Background Technology

[0002] In existing automotive thermal management systems, multi-way valves are core components. They regulate the on / off state, reversal, and flow rate of the medium to control the overall vehicle's thermal management.

[0003] The core function of a multi-way valve is to switch fluid channels by changing the position of the valve core, thereby enabling the conversion between different process flows. However, in practical applications, multi-way valves may have inaccurate switching positions during the switching process. This deviation may cause media mixing or abnormal system pressure. Utility Model Content

[0004] The purpose of this application includes, for example, providing a multi-way valve that can achieve relatively accurate reversing.

[0005] The embodiments of this application can be implemented as follows:

[0006] An embodiment of this application provides a multi-way valve, which includes a valve seat, a rotating shaft, a turntable, and an actuator. The turntable is rotatably disposed within the valve seat. The rotating shaft passes through both the valve seat and the turntable and is coaxially connected to the turntable. The actuator is disposed on one side of the valve seat, and the output end of the actuator is provided with an adapter, which is connected to the rotating shaft. A limiting portion is provided on the valve seat to limit the rotation of the adapter between a first position and a second position.

[0007] Optionally, the limiting part is provided with a first abutting surface and a second abutting surface located on the same circumference, and the adapter is provided with a first stop surface and a second stop surface located on the same circumference. The first stop surface is used to abut against the first abutting surface when the adapter is rotated to a first position, and the second stop surface is used to abut against the second abutting surface when the adapter is rotated to a second position.

[0008] Optionally, the adapter includes an adapter body and a connecting portion disposed on the adapter body. The connecting portion is connected to the rotating shaft. A limiting mating portion protrudes from the adapter body toward the valve seat. A first stop surface and a second stop surface are disposed on the limiting mating portion. An arc-shaped notch is provided on the limiting portion. The first abutting surface and the second abutting surface are two opposing surfaces of the limiting portion within the arc-shaped notch, and the limiting mating portion is located within the arc-shaped notch.

[0009] Optionally, one end of the rotating shaft is provided with a spline groove, and the connecting part is engaged with the spline groove via a spline.

[0010] Optionally, the turntable has a spline hole, and the rotating shaft is splined into the spline hole.

[0011] Optionally, the valve seat is provided with a plurality of first flow channel holes evenly spaced around the rotating shaft, and the turntable is provided with blind holes and through holes. When the adapter is in the first position or the second position, the blind holes and the through holes are each connected to two of the first flow channel holes.

[0012] Optionally, the multi-way valve further includes a sealing plate and a spring, both of which are disposed within the valve seat. The rotary disc is located between the spring and the sealing plate, and the rotary disc is able to abut against the sealing plate under the action of the spring.

[0013] Optionally, the surface of the turntable facing the sealing sheet is provided with raised ribs, which can abut against the sealing sheet.

[0014] Optionally, at least one of the sealing sheet and the turntable is made of ceramic material.

[0015] Optionally, the spring is a wave spring.

[0016] The beneficial effects of the multi-way valve provided in this application include, for example, in order to achieve more accurate reversing, a multi-way valve is designed, which includes a valve seat, a rotating shaft, a turntable and an actuator. The turntable is rotatably disposed in the valve seat, and the rotating shaft passes through both the valve seat and the turntable. The rotating shaft and the turntable are coaxially connected. The actuator is disposed on one side of the valve seat, and the output end of the actuator is provided with an adapter, which is connected to the rotating shaft. A limit part is provided on the valve seat to limit the rotation of the adapter between a first position and a second position.

[0017] During the switching process, the multi-way valve uses an actuator to drive the rotating shaft through an adapter. The turntable rotates synchronously with the rotating shaft. Because the valve seat is equipped with a limiting part, the limiting part restricts the adapter to rotate only between the first position and the second position. In other words, the turntable is restricted to rotate only between two working positions, thereby achieving precise switching of the multi-way valve and making it less likely to cause media mixing or abnormal system pressure. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the multi-way valve in the embodiments of this application;

[0020] Figure 2 This is an exploded view of the multi-way valve in the embodiments of this application;

[0021] Figure 3 This is a partial cross-sectional view of the multi-way valve in an embodiment of this application;

[0022] Figure 4 This is an exploded view illustrating the mating relationship between the adapter and the limiting part in an embodiment of this application;

[0023] Figure 5 This is an exploded view illustrating the mating relationship between the adapter, rotating shaft, and turntable in an embodiment of this application.

[0024] Figure 6 This is a schematic diagram of the turntable in an embodiment of this application.

[0025] Icons: 100-Valve seat; 110-Valve body; 111-First flow channel hole; 120-Valve cover; 130-Limiting part; 131-First abutting surface; 132-Second abutting surface; 133-Arc-shaped notch; 140-Bearing; 200-Rotating shaft; 210-Spline groove; 300-Turntable; 310-Spline hole; 320-Blind hole; 330-Through hole; 340-Annular rib; 350-Strip rib; 400-Actuator; 410-Adapter; 411-Adapter body; 4111-First stop surface; 4112-Second stop surface; 4113-Limiting mating part; 412-Connecting part; 500-Sealing plate; 510-Second flow channel hole; 600-Wave spring. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0029] In the description of this application, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0030] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0031] It should be noted that, where there is no conflict, the features in the embodiments of this application can be combined with each other.

[0032] Existing multi-way valves may have inaccurate switching positions during the switching process. If the switching position deviates, it may cause media mixing or abnormal system pressure. Embodiments of this application provide a multi-way valve that at least addresses this technical problem.

[0033] Please refer to Figures 1-4 The multi-way valve provided in the embodiments of this application includes a valve seat 100, a rotating shaft 200, a turntable 300, and an actuator 400. The turntable 300 is rotatably disposed within the valve seat 100. The rotating shaft 200 passes through both the valve seat 100 and the turntable 300 and is coaxially connected to the turntable 300. The actuator 400 is disposed on one side of the valve seat 100. The output end of the actuator 400 is provided with an adapter 410, which is connected to the rotating shaft 200. A limiting part 130 is provided on the valve seat 100 to limit the rotation of the adapter 410 between a first position and a second position.

[0034] The valve seat 100 includes a valve body 110 and a valve cover 120 connected by bolts. A cavity for accommodating a turntable 300 is formed between the valve body 110 and the valve cover 120. A rotating shaft 200 passes through the outside of the valve cover 120 into the cavity, and the rotating shaft 200 is coaxially connected to the turntable 300, so that the rotating shaft 200 and the turntable 300 are relatively fixed. The actuator 400 can be a driving component such as a motor. The actuator 400 is disposed on the outside of the valve cover 120, and its output end is connected to the rotating shaft 200 through an adapter 410 to drive the rotating shaft 200 to rotate. The limiting part 130 The limiting part 130, located on the surface of the valve cover 120 away from the valve body 110, limits the adapter 410 to rotate only between the first position and the second position, thereby limiting the rotation angle of the turntable 300. For example, when the adapter 410 rotates clockwise from the first position to the second position, the turntable 300 reaches the second working position and cannot continue to rotate clockwise; similarly, when the adapter 410 rotates counterclockwise from the second position to the first position, the turntable 300 reaches the first working position and cannot continue to rotate counterclockwise.

[0035] During the switching process, the multi-way valve uses the actuator 400 to drive the rotating shaft 200 to rotate through the adapter 410. The turntable 300 rotates synchronously with the rotating shaft 200. Since the valve cover 120 is provided with a limiting part 130, the limiting part 130 limits the adapter 410 to rotate only between the first position and the second position. That is, it limits the turntable 300 to rotate only between the first working position and the second working position, thereby realizing the precise switching of the multi-way valve and making it less likely to cause medium mixing or abnormal system pressure.

[0036] In some embodiments, the limiting part 130 is provided with a first abutting surface 131 and abutting surface 132 located on the same circumference, and the adapter 410 is provided with a first stop surface 4111 and a second stop surface 4112 located on the same circumference. The first stop surface 4111 is used to abut against the first abutting surface 131 when the adapter 410 is rotated to the first position, and the second stop surface 4112 is used to abut against the second abutting surface 132 when the adapter 410 is rotated to the second position.

[0037] When the adapter 410 rotates from the first position to the second position, the second stop surface 4112 abuts against the second abutting surface 132, and when the adapter 410 rotates from the second position to the first position, the first stop surface 4111 abuts against the first abutting surface 131, thereby enabling the turntable 300 to be accurately positioned in the first working position or the second working position for operation.

[0038] Furthermore, the adapter 410 includes an adapter body 411 and a connecting part 412 disposed on the adapter body 411. The connecting part 412 is connected to the rotating shaft 200. A limiting mating part 4113 protrudes from the adapter body 411 toward the valve seat 100. A first stop surface 4111 and a second stop surface 4112 are disposed on the limiting mating part 4113. An arc-shaped notch 133 is provided on the limiting part 130. A first abutting surface 131 and abutting surface 132 are two opposing surfaces of the limiting part 130 within the arc-shaped notch 133. The limiting mating part 4113 is located within the arc-shaped notch 133.

[0039] The limiting mating part 4113 is arc-shaped, and the first stop surface 4111 and the second stop surface 4112 are the two sides of the limiting mating part 4113.

[0040] Optionally, there are two limiting mating parts 4113. The limiting part 130 is provided with two arc-shaped notches 133. The two opposing surfaces of the limiting part 130 in any arc-shaped notch 133 are the first abutting surface 131 and the second abutting surface 132, respectively. The two limiting mating parts 4113 are located in the two arc-shaped notches 133 respectively.

[0041] When the adapter 410 rotates from the first position to the second position, the second stop surfaces 4112 of the two limiting mating parts 4113 abut against the corresponding second abutting surfaces 132. When the adapter 410 rotates from the second position to the first position, the first stop surfaces 4111 of the two limiting mating parts 4113 abut against the corresponding first abutting surfaces 131, thereby achieving a more stable positioning effect.

[0042] Please refer to Figure 5 In some embodiments, one end of the rotating shaft 200 is provided with a spline groove 210, and the connecting part 412 is engaged with the spline groove 210 via splines.

[0043] The rotating shaft 200 has a spline groove 210 at one end outside the valve cover 120, and the connecting part 412 is located in the middle of the adapter body 411 and is splined to the spline groove 210. Similarly, the adapter body 411 and the output end of the actuator 400 can also be splined to achieve stable power transmission.

[0044] In some embodiments, the turntable 300 is provided with a spline hole 310, and the rotating shaft 200 is engaged with the spline hole 310 via a spline.

[0045] The spline hole 310 is located at the center of the turntable 300. The part of the rotating shaft 200 located inside the valve seat 100 is engaged with the spline hole 310 via a spline. A bearing 140 is provided inside the valve body 110. One end of the rotating shaft 200 located inside the valve seat 100 is engaged with the bearing 140. The actuator 400, adapter 410, rotating shaft 200, and turntable 300 are connected by a spline to form a complete and stable power transmission path.

[0046] When the actuator 400 is started, the actuator 400 can drive the adapter 410 to rotate forward and reverse. The actuator 400 drives the rotating shaft 200 to rotate through the adapter 410, and the rotating shaft 200 then drives the turntable 300 to rotate, thereby realizing the switching of the turntable 300 between the first working position and the second working position.

[0047] Please refer to Figure 6 In some embodiments, the valve seat 100 is provided with a plurality of first flow channel holes 111 evenly spaced around the rotation axis 200, and the turntable 300 is provided with blind holes 320 and through holes 330. When the adapter 410 is in the first position or the second position, the blind holes 320 and the through holes 330 are each connected to two first flow channel holes 111.

[0048] A plurality of first flow channel holes 111 are evenly spaced on the surface of the valve body 110 away from the actuator 400. The plurality of first flow channel holes 111 are used to connect to different pipes respectively. The blind hole 320 and the through hole 330 are both opened along the axial direction of the rotation axis 200. The blind hole 320 is opened on the surface of the turntable 300 away from the actuator 400. When the adapter 410 is in the first position or the second position, the blind hole 320 connects two of the first flow channel holes 111, and the through hole 330 connects two of the first flow channel holes 111. Since the angle of rotation of the adapter 410 between the first position and the second position is equal to the included angle between two adjacent first flow channel holes 111, the turntable 300 can accurately switch the flow channel when it rotates from the first working position to the second working position or from the second working position to the first working position.

[0049] In some embodiments, the angle at which the adapter 410 rotates between the first position and the second position is equal to the included angle between two adjacent first flow channel holes 111. It is understood that in some other embodiments, the angle at which the adapter 410 rotates between the first position and the second position may be slightly larger or slightly smaller than the included angle between two adjacent first flow channel holes 111, as long as the turntable 300 is in the first working position or the second working position, the blind hole 320 and the through hole 330 are each connected to the two first flow channel holes 111.

[0050] For example, there are five first flow channel holes 111, and the included angle between two adjacent first flow channel holes 111 is 72°. The angle at which the adapter 410 rotates between the first position and the second position can be about 72°. The five first flow channel holes 111 are flow channel holes numbered one to five. When the adapter 410 is in the first position, the blind hole 320 connects flow channel holes number one and five, and the through hole 330 connects flow channel holes number two and three. When the adapter 410 is in the second position, the blind hole 320 connects flow channel holes number one and two, and the through hole 330 connects flow channel holes number three and four.

[0051] It is understandable that the number of first flow channel holes 111 and the flow channel holes corresponding to blind holes 320 and through holes 330 can be determined according to actual working conditions.

[0052] In some embodiments, the multi-way valve further includes a sealing plate 500 and a spring, both of which are disposed within the valve seat 100. A rotary disc 300 is located between the spring and the sealing plate 500, and the rotary disc 300 is able to abut against the sealing plate 500 under the action of the spring.

[0053] The sealing sheet 500 has multiple second flow channel holes 510, which are connected to multiple first flow channel holes 111 in a one-to-one correspondence; the turntable 300 has a first surface and a second surface opposite to each other along the axial direction of the rotation shaft 200, and the spring acts on the first surface of the turntable 300 so that the second surface of the turntable 300 abuts against the sealing sheet 500 to achieve sealing.

[0054] Furthermore, the surface of the turntable 300 facing the sealing sheet 500 is provided with raised ribs, which can abut against the sealing sheet 500.

[0055] The ribs include two annular ribs 340 of different diameters and three strip ribs 350. The two annular ribs 340 are coaxially arranged with the turntable 300. The smaller annular rib 340 is arranged around the spline hole 310 on the turntable 300. The blind hole 320, the through hole 330 and the spline hole 310 are all located inside the larger annular rib 340. The three strip ribs 350 are arranged circumferentially along the turntable 300 and are all connected between the two annular ribs 340. The three strip ribs 350 and the two annular ribs 340 form three fan-shaped sealing areas, of which two fan-shaped sealing areas are matched with the blind hole 320 and the through hole 330, respectively.

[0056] Under the action of the spring, the two annular ribs 340 and the three strip ribs 350 on the turntable 300 abut against the surface of the sealing sheet 500, preventing the medium entering the blind hole 320 and the through hole 330 from flowing back and forth, thus achieving a sealing effect.

[0057] In some embodiments, at least one of the sealing sheet 500 and the turntable 300 is made of ceramic material.

[0058] The fact that at least one of the sealing sheet 500 and the turntable 300 is made of ceramic material includes: the sealing sheet 500 is made of ceramic material, or the turntable 300 is made of ceramic material, or both the sealing sheet 500 and the turntable 300 are made of ceramic material.

[0059] Because ceramic materials have extremely high surface hardness, the surface roughness of parts can be made extremely low through grinding processes. Therefore, using ceramic materials to manufacture sealing sheet 500 or turntable 300, with turntable 300 supporting sealing sheet 500, can ensure good low internal leakage, low friction and high wear resistance, thereby reducing the output torque requirements of actuator 400 and improving product life.

[0060] In some embodiments, the spring is a wave spring 600.

[0061] It should be noted that the wave spring 600 has an undulating shape along the axial direction of the rotation shaft 200, with multiple high contact points and multiple low contact points. The multiple high contact points simultaneously abut against the inner wall of the valve cover 120, and the multiple low contact points simultaneously abut against the first surface of the turntable 300, thus ensuring that the ribs on the turntable 300 always abut against the sealing plate 500. Compared to ordinary helical springs, the wave spring 600 has more stable end-face positioning and is less prone to circumferential deformation.

[0062] In other embodiments, the spring may be of other types, as long as it can achieve a similar effect to the wave spring 600, and there is no limitation thereto.

[0063] In summary, this application provides a multi-way valve, which includes a valve seat 100, a rotating shaft 200, a turntable 300, and an actuator 400. The output end of the actuator 400 is connected to the rotating shaft 200 via an adapter 410. The rotating shaft 200 and the turntable 300 are coaxially connected. During the switching process, the actuator 400 drives the rotating shaft 200 to rotate via the adapter 410. The turntable 300 rotates synchronously with the rotating shaft 200. Since the valve cover 120 is provided with a limiting part 130, the limiting part 130 limits the adapter 410 to rotate only between the first position and the second position, that is, limits the turntable 300 to rotate only between the first working position and the second working position. This achieves precise switching of the multi-way valve and makes it less likely to cause media mixing or abnormal system pressure.

[0064] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A multi-way valve, characterized in that, The device includes a valve seat (100), a rotating shaft (200), a turntable (300), and an actuator (400). The turntable (300) is rotatably disposed within the valve seat (100). The rotating shaft (200) passes through both the valve seat (100) and the turntable (300) and is coaxially connected to the turntable (300). The actuator (400) is disposed on one side of the valve seat (100). The output end of the actuator (400) is provided with an adapter (410) and the adapter (410) is connected to the rotating shaft (200). A limiting part (130) is provided on the valve seat (100) to limit the rotation of the adapter (410) between a first position and a second position.

2. The multi-way valve according to claim 1, characterized in that, The limiting part (130) is provided with a first abutting surface (131) and a second abutting surface (132) located on the same circumference. The adapter (410) is provided with a first stop surface (4111) and a second stop surface (4112) located on the same circumference. The first stop surface (4111) is used to abut against the first abutting surface (131) when the adapter (410) is rotated to the first position. The second stop surface (4112) is used to abut against the second abutting surface (132) when the adapter (410) is rotated to the second position.

3. The multi-way valve according to claim 2, characterized in that, The adapter (410) includes an adapter body (411) and a connecting part (412) disposed on the adapter body (411). The connecting part (412) is connected to the rotating shaft (200). A limiting mating part (4113) is protruding from the adapter body (411) toward the valve seat (100). The first stop surface (4111) and the second stop surface (4112) are disposed on the limiting mating part (4113). The limiting part (130) is provided with an arc-shaped notch (133). The first abutting surface (131) and the second abutting surface (132) are respectively two opposing surfaces of the limiting part (130) in the arc-shaped notch (133). The limiting mating part (4113) is located in the arc-shaped notch (133).

4. The multi-way valve according to claim 3, characterized in that, One end of the rotating shaft (200) is provided with a spline groove (210), and the connecting part (412) is engaged with the spline groove (210) via splines.

5. The multi-way valve according to claim 1, characterized in that, The turntable (300) has a spline hole (310), and the rotating shaft (200) is engaged with the spline hole (310) via a spline.

6. The multi-way valve according to claim 1, characterized in that, The valve seat (100) is provided with a plurality of first flow channel holes (111) evenly spaced around the rotating shaft (200). The turntable (300) is provided with blind holes (320) and through holes (330). When the adapter (410) is in the first position or the second position, the blind hole (320) and the through hole (330) are each connected to two of the first flow channel holes (111).

7. The multi-way valve according to claim 1, characterized in that, The multi-way valve also includes a sealing plate (500) and a spring, both of which are disposed within the valve seat (100). The rotary table (300) is located between the spring and the sealing plate (500), and the rotary table (300) is able to abut against the sealing plate (500) under the action of the spring.

8. The multi-way valve according to claim 7, characterized in that, The turntable (300) has raised ribs on its surface facing the sealing sheet (500), and the raised ribs can abut against the sealing sheet (500).

9. The multi-way valve according to claim 7, characterized in that, At least one of the sealing sheet (500) and the turntable (300) is made of ceramic material.

10. The multi-way valve according to claim 7, characterized in that, The spring is a wave spring (600).

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