A seal ring, regulating valve and thermal management system
Patent Information
- Application Number
- CN202522591074.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-05
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-05
AI Technical Summary
In existing thermal management systems for pure electric vehicles, it is difficult to achieve small flow rates and precise regulation of the medium, especially in flow control between the heating circuit and the battery circuit, resulting in poor thermal efficiency and flow regulation.
A sealing ring is designed and installed inside a regulating valve. By creating a flow channel and a flow port on the sealing ring, the cross-sectional area of the flow channel is smaller than that of the flow port and is connected to the valve port, a small flow rate of the medium can be achieved, and the flow rate can be controlled by rotating the valve core.
It enables small-flow and precise regulation of the medium, reduces the requirements for installation space, and improves the thermal efficiency and flow control accuracy of the thermal management system.
Smart Images
Figure CN224932221U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of regulating valve technology, and in particular to a sealing ring, a regulating valve, and a thermal management system. Background Technology
[0002] The thermal management system of pure electric vehicles is designed with multiple circulation loops. Based on the principles of vehicle thermal management, multiple multi-way water valves are needed to switch between various operating conditions. In existing models, it is common to use a combination of multiple three-way valves. Currently, to improve driving range, the thermal management design of pure electric vehicles requires increasingly more operating conditions. For example, from the perspectives of cost savings, weight reduction, and space optimization, integrating multiple three-way valves into a smaller number of multi-way valves is becoming increasingly important. Furthermore, with the continuous development of the entire vehicle system, the requirements for water valve applications are becoming increasingly stringent. Many systems require dual-function operation, meaning that heating the passenger compartment and simultaneously heating the battery are necessary. To improve thermal efficiency, hot water from the heater loop is often directly supplied to the battery loop for battery heating, which places high demands on flow rate—it needs sufficient flow, but the flow rate cannot be too large.
[0003] Therefore, how to achieve a small flow rate of medium is a technical problem that the industry urgently needs to solve. Utility Model Content
[0004] The purpose of this invention is to provide a sealing ring, a regulating valve, and a thermal management system for enabling the inflow of a small amount of medium.
[0005] To achieve the above objectives, in a first aspect, this utility model provides a sealing ring applied to a regulating valve. The regulating valve includes a valve body and a valve core. At least three spaced-apart valve ports are provided on the side wall of the valve body, with the multiple valve ports distributed circumferentially on the valve body. The valve core has a first flow channel for connecting at least two adjacent valve ports. The sealing ring is installed within the cavity of the valve body, and the valve core is rotatably disposed within the sealing ring, with the outer wall of the valve core abutting against the inner wall of the sealing ring. At least one flow channel and multiple flow ports are provided on the side wall of the sealing ring, both the flow channel and the flow ports being opened along the thickness direction of the sealing ring. The multiple flow ports are respectively connected to multiple valve ports, with the flow channel located between two adjacent flow ports and connected to an adjacent valve port. The flow channel has a first opening facing the valve core. The cross-sectional area of the flow channel is smaller than the cross-sectional area of the flow ports, and both the cross-sections of the flow channel and the flow ports are perpendicular to the thickness direction of the sealing ring.
[0006] In the sealing ring provided by this utility model, the flow channel has a first opening facing the valve core, and the flow channel is connected to an adjacent valve port (defined as the first valve port for ease of subsequent description). In actual use, by rotating the valve core, the flow channel is connected to the valve port providing the medium (defined as the second valve port for ease of subsequent description). At this time, the medium can flow from the second valve port into the first valve port through the flow channel. Since the cross-sectional area of the flow channel is smaller than that of the flow channel opening, the flow rate of the medium flowing into the first valve port through the flow channel is less than the flow rate of the medium flowing into the first valve port through the flow channel opening. Based on this, in this application, a small flow rate of medium can be achieved by setting a flow channel connected to the first valve port. Furthermore, by setting flow channels of different heights according to actual needs, the small flow rate entering the first valve port can be controlled. In addition, the flow channel in this application is opened on the sealing ring, which does not increase the space occupied by the sealing ring in the valve body, reducing the requirements for installation space. It should be noted that the above-mentioned medium can be a liquid (e.g., water) or a gas.
[0007] In one implementation, the valve port connected to the flow channel is the first valve port, and the flow channel port connected to the first valve port is the first flow channel port; the flow channel includes a flow groove and / or a flow through hole; Along the arrangement direction of the multiple flow channels, the flow groove has a second opening; the second opening extends circumferentially along the sealing ring to the first flow channel and communicates with the first flow channel. Along the thickness direction of the sealing ring, the flow passage penetrates the sealing ring; the flow passage is connected to the first valve port through the second flow channel.
[0008] In one implementation, the valve core includes a plurality of spaced-apart partitions, the outer wall of which abuts against the inner wall of the sealing ring; a first flow channel is located between two adjacent partitions in one group; The depth of the flow groove is greater than or equal to 2 mm and less than or equal to the thickness of the sealing ring; The horizontal length of the flow channel is L1, where L1 = L2 + L3 + L4; where L2 represents the width of the separator, L3 represents the minimum horizontal length of the flow channel when it is used to flow the medium to the valve port, and L4 represents the manufacturing deviation. The height of the flow channel is greater than or equal to 2mm and less than or equal to 2 / 3 of the height of the first flow channel opening; the height direction of the flow channel is consistent with the height direction of the sealing ring.
[0009] In one implementation, the value of L2 ranges from 0.5 mm to 3 mm, the value of L3 ranges from 1 mm to 4 mm, and the value of L4 ranges from 0 mm to 3 mm.
[0010] In one implementation, the cross-sectional shape of the second opening along the height direction of the sealing ring is rectangular, triangular, or trapezoidal.
[0011] In one implementation, the valve core includes a plurality of spaced-apart partitions, the outer wall of which abuts against the inner wall of the sealing ring; a first flow channel is located between two adjacent partitions; a flow channel opening adjacent to the first flow channel opening is a second flow channel opening; and a through-hole is located between the first flow channel opening and the second flow channel opening. The horizontal distance between the flow through hole and the second flow channel opening is greater than or equal to the width of the separator.
[0012] In one implementation, the minimum horizontal distance between the first flow channel opening and the second flow channel opening is L6; the one-dimensional dimension of the flow through hole is greater than or equal to 1 mm and less than or equal to 1 / 2 L6. And / or, along the height direction of the sealing ring, the cross-sectional shape of the flow hole is a closed shape formed by a line segment and an arc, or a rectangle, a circle, or an ellipse.
[0013] In one implementation, a second flow channel is provided on the sealing ring; And / or, portions of the outer wall of the sealing ring are spaced apart from the inner wall of the valve body to form a second flow channel.
[0014] Secondly, this utility model also provides a regulating valve. The regulating valve includes a valve body, a valve core, and a sealing ring as described in the above-mentioned technical solution. At least three spaced-apart valve ports are provided on the side wall of the valve body, and the multiple valve ports are distributed circumferentially on the valve body. The valve core has a first flow channel for connecting at least two adjacent valve ports. The sealing ring is installed inside the cavity of the valve body, and the valve core is rotatably disposed within the sealing ring, with the outer wall of the valve core abutting against the inner wall of the sealing ring. At least one flow channel and multiple flow ports are provided on the side wall of the sealing ring, both the flow channel and the flow ports being opened along the thickness direction of the sealing ring, and the multiple flow ports respectively connecting to multiple valve ports. The flow channel is located between two adjacent flow ports and connects to an adjacent valve port. The flow channel has a first opening facing the valve core. The cross-sectional area of the flow channel is smaller than the cross-sectional area of the flow ports, and the cross-sections of both the flow channel and the flow ports are perpendicular to the thickness direction of the sealing ring.
[0015] The beneficial effects of the regulating valve provided by this utility model are the same as those of the sealing ring described in the above technical solution, and will not be repeated here.
[0016] Thirdly, this utility model also provides a thermal management system. This thermal management system includes a pipeline and a regulating valve as described in the above-mentioned technical solution, with the pipeline connected to the regulating valve.
[0017] The beneficial effects of the thermal management system provided by this utility model are the same as those of the regulating valve described in the above technical solution, and will not be repeated here. Furthermore, it also facilitates the miniaturization of the thermal management system, saves on parts, and reduces manufacturing costs. Attached Figure Description
[0018] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a diagram illustrating the first relative positional relationship between the valve core and valve body in related technologies; Figure 2 This is a diagram illustrating the second relative positional relationship between the valve core and valve body in related technologies. Figure 3 This is a diagram illustrating a third relative positional relationship between the valve core and valve body in related technologies. Figure 4 This is an exploded view of the regulating valve structure in an embodiment of this utility model; Figure 5 This is a partial structural diagram of a five-way valve in an embodiment of this utility model; Figure 6 This is a partial structural diagram of the regulating valve when the flow channel is a flow groove in an embodiment of this utility model; Figure 7 As an embodiment of this utility model Figure 6 Enlarged schematic diagram of part of the structure; Figure 8 This is a schematic diagram of the structure when the sealing ring has a flow groove in an embodiment of this utility model; Figure 9 As an embodiment of this utility model Figure 8 Enlarged schematic diagram of part of the structure Figure 1 ; Figure 10 As an embodiment of this utility model Figure 8 Enlarged schematic diagram of part of the structure Figure 2 ; Figure 11 This is a schematic diagram of the structure when the sealing ring has a flow hole in an embodiment of this utility model. Figure 1 ; Figure 12 This is a partial structural diagram of the regulating valve when the flow channel is a flow through hole in an embodiment of this utility model; Figure 13 As an embodiment of this utility model Figure 12 Enlarged schematic diagram of part of the structure; Figure 14 This is a schematic diagram of the structure when the sealing ring has a flow hole in an embodiment of this utility model. Figure 2 .
[0019] Figure label: 1-Valve body; 10-Valve port A; 11-Valve port B; 12-Valve port C; 13-Valve port one; 14-Valve port two; 15-Valve port three; 16-Valve port four; 17-Valve port five; 110-First valve port; 111-Second valve port; 112-Third valve port; 2-Valve core; 20-First flow channel; 21-First separator; 22-Second separator; 23-Flow channel one; 24-Flow channel two; 25-Flow channel three; 26-Separator. 260-Third separator, 261-Fourth separator, 262-Fifth separator; 3-Sealing ring, 30-Flow channel opening, 31-First flow channel opening, 32-Second flow channel opening, 33-Flow groove, 330-First opening, 331-Second opening, 34-Flow through hole, 4-Support rib, 5-Actuator, 6-End cap, 7-Sealing ring, 8-External leakage sealing ring, 80-External leakage flow channel opening, 90-Channel, 91-Second flow channel. Detailed Implementation
[0020] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.
[0021] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.
[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. "Several" means one or more, unless otherwise explicitly specified.
[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.
[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0025] In the context of background technology, to improve thermal efficiency, hot water from the heating circuit is often directly supplied to the battery circuit to heat the battery. This requires a high flow rate, but it cannot be too large. For example, the required flow rate is generally around 0.5 L / min. However, in multi-way valves, the proportional control angle is often limited, thus preventing the proportional control from achieving low flow rate regulation.
[0026] For example, see Figures 1 to 3 In the relevant technology, the water valve includes a valve body 1, a valve core 2, and a sealing ring 3. The valve body 1 has three spaced-apart valve ports, specifically port A10, port B11, and port C12. The sealing ring 3 has three flow channels 30, each corresponding to one of the three valve ports. The valve core 2 has a first flow channel 20, used to connect port A10 only to port B11, or port A10 only to port C12, or port A10 to both ports B11 and C12 simultaneously. Port A10 can serve as the medium inlet, while ports B11 and C12 are the medium outlets. The valve core 2 includes a first separator 21 and a second separator 22, with the first flow channel 20 located between the first separator 21 and the second separator 22. The first separator 21 is closer to port C12, and the second separator 22 is closer to port B11.
[0027] like Figure 1 As shown, valve port A10 is only connected to valve port B11. The first separator 21 is located at the edge of valve port A10 and is about to enter valve port C12. The second separator 22 is located at the edge of valve port B11 and is about to enter valve port B11. At this time, the proportional adjustment is about to begin. When valve core 2 continues to rotate clockwise... Figure 1 At that point, the process of adjusting the proportions begins, such as... Figure 2 As shown, at this time, valve port A10 is simultaneously connected to valve ports B11 and C12. As valve core 2 continues to rotate clockwise, the portion of the first flow channel 20 corresponding to valve port C12 becomes increasingly larger, and the flow rate allocated to valve port C12 also increases. Figure 3The proportional adjustment just ended at the correct position. The entire proportional adjustment angle is approximately 20 degrees, and the flow rate fluctuation for each degree is generally greater than 1 L / min. Furthermore, there are some deviations in the manufacturing of the water valve and the actuator, approximately 3 degrees. Under these circumstances, the water valve structure in related technologies cannot achieve low flow rate regulation.
[0028] To address at least one of the aforementioned technical problems, in a first aspect, embodiments of the present invention provide a sealing ring applied to a regulating valve. See also... Figures 4 to 13 The regulating valve includes a valve body 1 and a valve core 2. At least three spaced valve ports are provided on the side wall of the valve body 1, and the multiple valve ports are distributed circumferentially on the valve body 1. The valve core 2 is rotatably disposed within the cavity of the valve body 1, and the valve core 2 has a first flow channel 20, which is used to connect at least two adjacent valve ports.
[0029] See Figures 4 to 13 A sealing ring 3 is installed inside the cavity of the valve body 1, and the valve core 2 is rotatably disposed within the sealing ring 3, with the outer wall of the valve core 2 abutting against the inner wall of the sealing ring 3. At least one flow channel and multiple flow ports 30 are provided on the side wall of the sealing ring 3, both along the thickness direction of the sealing ring. The multiple flow ports 30 are respectively connected to multiple valve ports, with the flow channel located between two adjacent flow ports 30 and connected to an adjacent valve port. The flow channel has a first opening 330 facing the valve core 2. The cross-sectional area of the flow channel is smaller than the cross-sectional area of the flow ports 30, and both the cross-sections of the flow channel and the flow ports are perpendicular to the thickness direction of the sealing ring 3.
[0030] See Figures 4 to 13 In the sealing ring 3 provided in this embodiment of the utility model, the flow channel has a first opening facing the valve core 2, and the flow channel is connected to an adjacent valve port (defined as the first valve port 110 for ease of subsequent description). In actual use, by rotating the valve core 2, the flow channel is connected to the valve port providing the medium (defined as the second valve port 111 for ease of subsequent description). At this time, the medium can flow into the first valve port 110 through the flow channel from the second valve port 111. Since the cross-sectional area of the flow channel is smaller than the cross-sectional area of the flow channel 30, the flow rate of the medium flowing into the first valve port 110 through the flow channel is less than the flow rate of the medium flowing into the first valve port 110 through the flow channel 30. Based on this, in this application, a small flow rate of medium can be achieved by setting a flow channel connected to the first valve port 110. Furthermore, by setting flow channels of different heights according to actual needs, the small flow rate entering the first valve port 110 can be controlled. In addition, the flow channel in this application is opened on the sealing ring 3, which does not increase the space occupied by the sealing ring 3 in the valve body 1, thus reducing the requirements for installation space. It should be noted that the aforementioned medium can be a liquid (such as water) or a gas.
[0031] As one possible implementation, see Figures 4 to 13 The aforementioned regulating valve can be a three-way valve (i.e., the valve body 1 has three valve ports), a four-way valve (i.e., the valve body 1 has four valve ports), a five-way valve (i.e., the valve body 1 has five valve ports), or an N-way valve (i.e., the valve body 1 has N valve ports), where N is greater than 5.
[0032] The number of flow channels 30 on the sealing ring 3 is the same as the number of valve ports on the valve body 1, and multiple flow channels 30 are respectively connected to multiple valve ports to ensure normal flow of the medium.
[0033] As for the number of first flow channels 20 on valve core 2, the shape of flow channel opening 30 can be set according to the actual situation, and no specific limitation is made here.
[0034] For example, the valve core 2 has one, two, or three first flow channels 20. The shape of the flow channel opening 30 can be rectangular, square, circular, elliptical, triangular, pentagonal, hexagonal, trapezoidal, or a closed shape formed by line segments and arcs.
[0035] It is worth noting that the other structures of valve body 1, valve core 2 and sealing ring 3 are not described in detail here.
[0036] The valve body and valve core are described below as an example of one possible implementation. It should be understood that the following description is for comprehension purposes only and is not intended to limit the specific implementation.
[0037] See Figure 5 Along the circumference of valve body 1, valve port 13, valve port 2 14, valve port 3 15, valve port 4 16 and valve port 5 17 are sequentially opened on the side wall of valve body 1.
[0038] The valve core 2 includes a valve core body. Along the circumference of the valve core body, flow channels 1 23, 24, and 3 25 are sequentially formed. Specifically, the first flow channel includes flow channel 1 23, flow channel 24, and flow channel 3 25. Flow channel 3 25 connects valve port 4 16 and valve port 5 17. When valve port 4 16 and valve port 5 17 are not connected, flow channel 1 23 connects valve port 1 13, valve port 2 14, and valve port 3 15. When valve port 4 16 and valve port 5 17 are connected, flow channel 2 24 connects valve port 1 13, valve port 2 14, and valve port 3 15.
[0039] The regulating valve in this application has multiple operating modes. For ease of understanding, several possible scenarios are described below. It should be noted that the following descriptions are for comprehension only and are not intended to limit the specific operation.
[0040] Type 1: Valve port 4 16 and valve port 5 17 are not connected. Flow channel 1 23 connects valve port 1 13 and valve port 2 14. The above-mentioned valve port 3 15, valve port 4 16 and valve port 5 17 are blocking ports.
[0041] The second type: valve port 4 16 and valve port 5 17 are not connected. Flow channel 1 23 connects valve port 1 13 and valve port 2 14, and valve port 2 14 and valve port 3 15. The above-mentioned valve port 4 16 and valve port 5 17 are the blocking ports.
[0042] The third type: valve port 4 16 and valve port 5 17 are not connected, and flow channel 1 23 connects valve port 2 14 and valve port 3 15. The above-mentioned valve port 1 13, valve port 4 16 and valve port 5 17 are the blocking ports.
[0043] The fourth type: Flow channel 3 25 connects valve port 4 16 and valve port 5 17, flow channel 2 24 connects valve port 1 13 and valve port 2 14, and the above-mentioned valve port 3 15 is a blocking port.
[0044] Fifth type: Flow channel 3 25 connects valve port 4 16 and valve port 5 17, flow channel 2 24 connects valve port 1 13 and valve port 2 14, and valve port 2 14 connects valve port 3 15.
[0045] The sixth type: Flow channel 3 25 connects valve port 4 16 and valve port 5 17, flow channel 2 24 connects valve port 2 14 and valve port 3 15, and the above-mentioned valve port 1 13 is a blocking port.
[0046] In actual use, when valve port 2 14 is connected to valve port 1 13 and valve port 3 15 at the same time, the flow rate at valve port 1 13 and valve port 3 15 can be adjusted proportionally by controlling the rotation angle of the valve core.
[0047] As one possible implementation, see Figures 6 to 13 The valve port connected to the flow channel is the first valve port 110, and the flow channel port 30 connected to the first valve port 110 is the first flow channel port 31. The aforementioned flow channel includes a flow groove 33 and / or a flow through hole 34.
[0048] The following description uses three possible scenarios as examples. It should be understood that the following description is for comprehension purposes only and is not intended to limit the specific possibilities.
[0049] Example 1: See Figures 6 to 9 When the flow channel only includes the flow groove 33, the flow groove 33 has a second opening 331 along the arrangement direction of the multiple flow ports 30. The second opening 331 extends circumferentially along the sealing ring 3 to the first flow port 31 and communicates with the first flow port 31. The first opening 330 faces the valve core 2.
[0050] At this time, the flow rate of the medium flowing into the first valve port 110 through the flow channel 33 depends on the size of the second opening 331.
[0051] In one alternative approach, see Figure 6 and Figure 7 The valve core 2 includes a plurality of spaced-apart partitions 26, the outer wall of which abuts against the inner wall of the sealing ring 3. A first flow channel 20 is located between one set of two adjacent partitions 26. It should be noted that not all partitions 26 have a first flow channel 20 for the flow of the medium. For example, see [link to example]. Figure 7 For ease of description, the separators are labeled as third separator 260, fourth separator 261, and fifth separator 262 along the direction from the third valve port 112 to the first valve port 110. The first flow channel 20 is located between the third separator 260 and the fourth separator 261, and the area between the fourth separator 261 and the fifth separator 262 is not used for the flow of medium between the two valve ports.
[0052] In one alternative approach, see Figures 8 to 10 The depth D of the flow groove 33 is greater than or equal to 2 mm and less than or equal to the thickness of the sealing ring 3. The depth direction of the flow groove 33 is consistent with the thickness direction of the sealing ring 3.
[0053] In one alternative approach, see Figures 6 to 10 The horizontal length of the flow channel 33 is L1, where L1 = L2 + L3 + L4. Here, L2 represents the width of the separator 26, L3 represents the minimum horizontal length of the opening of the flow channel 33 when it is used to flow media into the valve port (i.e., the horizontal length of the initial flow channel cross-section), and L4 represents the manufacturing deviation. The horizontal length direction of the flow channel 33, the width direction of the separator 26, and the horizontal length direction of the initial flow channel cross-section are all consistent. It should be noted that "the minimum opening of the flow channel 33 when it is used to flow media into the valve port" can be understood as: the minimum opening of the flow channel 33 exposed by the separator 26 when the flow channel 33 needs to fulfill its function of flowing media, or the minimum cross-section of the flow channel 33 exposed by the separator 26.
[0054] At this time, the flow rate of the medium flowing into the first valve port 110 through the flow channel 33 depends on the depth and horizontal length of the flow channel 33. The depth and horizontal length of the flow channel 33 can be adjusted according to the specific flow requirements of the system.
[0055] Furthermore, since L1 = L2 + L3 + L4, when the separator 26 included in the valve core 2 is located on the boundary line between whether the first valve port 110 and the second valve port 111 are connected, the flow groove 33 must have an "opening". That is, a portion of the flow groove 33 is exposed, and the horizontal length of the exposed flow groove 33 is greater than or equal to L3. In addition, the horizontal length of the flow groove 33 is also used to absorb manufacturing errors to further precisely adjust small flow rates.
[0056] For example, in actual use, if it is desired to provide a small flow rate of medium to the first valve port 110 before the first valve port 110 and the second valve port 111 are connected, the valve core 2 can be rotated to expose part or all of the flow groove 33. However, the first flow channel 20 of the valve core 2 is not connected to the first valve port 110 and the second valve port 111. It should be noted that because the outer wall of the valve core 2 abuts against the inner wall of the sealing ring 3, and the outer wall of the separator 26 abuts against the inner wall of the sealing ring 3, the valve core 2 or the separator 26 included in the valve core 2 will not be embedded in the flow groove 33, thus not affecting the normal flow of medium in the flow groove 33. For ease of understanding... Figure 7 The direction indicated by the dashed arrow in the figure is the flow path of the medium from the second valve port 111 through the flow groove 33 to the first valve port 110.
[0057] In some embodiments, the value of L2 ranges from 0.5mm to 3mm, the value of L3 ranges from 1mm to 4mm, and the value of L4 ranges from 0mm to 3mm. For example, L2 can be 0.5mm, 0.8mm, 0.9mm, 1mm, 1.2mm, 1.5mm, 1.8mm, 2mm, 2.3mm, 2.5mm, 2.8mm, or 3mm, etc. L3 can be 1mm, 1.2mm, 1.5mm, 1.8mm, 2mm, 2.3mm, 2.5mm, 2.8mm, 3mm, 3.5mm, 3.8mm, or 4mm, etc. L4 can be 0mm, 0.5mm, 0.8mm, 0.9mm, 1mm, 1.2mm, 1.5mm, 1.8mm, 2mm, 2.3mm, 2.5mm, 2.8mm, or 3mm, etc.
[0058] In one alternative approach, see Figures 6 to 10 The height H of the flow channel 33 is greater than or equal to 2mm and less than or equal to 2 / 3 of the height of the first flow channel opening. The height direction of the flow channel is consistent with the height direction of the sealing ring.
[0059] In one alternative approach, see Figure 9 Along the height direction of the sealing ring 3, the cross-sectional shape of the second opening is rectangular, triangular, or trapezoidal.
[0060] It is worth noting that the position of the flow channel 33 relative to the first flow channel opening 31 is not specifically defined here. For example, along the height direction of the first flow channel opening 31, the flow channel 33 is located in the middle region of the first flow channel opening 31.
[0061] Example 2: See Figures 11 to 13 When the flow channel only includes the flow through hole 34, the flow through hole 34 penetrates the sealing ring 3 along the thickness direction of the sealing ring 3, and the flow through hole 34 is connected to the first valve port 110 through the second flow channel.
[0062] At this time, the flow rate of the medium flowing into the first valve port 110 through the flow through the through hole 34 depends on the size of the first opening.
[0063] As one possible implementation, see Figures 11 to 13 The flow channel adjacent to the first flow channel 31 is designated as the second flow channel 32. A through-hole 34 is located between the first flow channel 31 and the second flow channel 32, and the horizontal distance between the through-hole 34 and the second flow channel 32 is greater than or equal to the width of the separator 26. For ease of description, the other valve port adjacent to the second valve port 111 is defined as the third valve port 112. For a detailed description of the separator 26, please refer to Example 1; it will not be repeated here.
[0064] Since the horizontal distance between the flow through hole 34 and the second flow channel 32 is greater than or equal to the width of the separator 26, it can be ensured that when the valve core 2 rotates to the position where the second valve port 111 is only connected to the third valve port 112, no medium will flow into the first valve port 110 through the flow through hole 34, thus ensuring the normal operation of the regulating valve. That is, a sealing margin needs to be reserved.
[0065] In actual use, when the proportional adjustment begins, the separator 26 of the valve core 2 just crosses the flow passage 34.
[0066] In one alternative approach, see Figures 11 to 13 The minimum horizontal distance between the first flow channel 31 and the second flow channel 32 is L6, and the one-dimensional dimension of the flow through hole 34 is greater than or equal to 1 mm and less than or equal to 1 / 2 L6. For example, the one-dimensional dimension of the flow through hole 34 can be 1 mm, 1.2 mm, 1.3 mm, 1.5 mm, 1.8 mm, 2 mm, 1 / 12 L6, 1 / 6 L6, 1 / 4 L6, 1 / 3 L6, or 1 / 2 L6, etc.
[0067] For example, the one-dimensional dimension of the first opening of the flow through hole 34 is greater than or equal to 1 mm.
[0068] In one alternative approach, see Figures 11 to 13 Along the height direction of the sealing ring 3, the cross-sectional shape of the flow hole 34 is a closed shape formed by the combination of line segments and arcs, or a rectangle, a circle, or an ellipse.
[0069] The aforementioned one-dimensional dimension can refer to the length, width, diameter, major axis, minor axis, or diagonal of the flow-through hole 34, etc. When the cross-section of the flow-through hole 34 is circular, the one-dimensional dimension can refer to the diameter of the flow-through hole 34. When the cross-section of the flow-through hole 34 is elliptical, the one-dimensional dimension can refer to the major axis or minor axis of the flow-through hole 34, etc. When the cross-section of the flow-through hole 34 is square, the one-dimensional dimension can refer to the width of the hole, etc.
[0070] The location of the flow through hole 34 relative to the first flow channel opening 31 can be selected according to the actual situation.
[0071] In one alternative embodiment, the flow through-hole 34 can be any other shape, such as a hollow cylinder, cube, or cuboid.
[0072] The following examples are provided to aid understanding. It should be noted that the descriptions below are for illustrative purposes only and not for specific limitations. For ease of description, the distance between the flow through-hole 34 and the first flow channel opening 31 is defined as the first distance L5. This first distance can refer to the distance between the center point of the flow through-hole 34 and the first flow channel opening 31, the distance between a point in the flow through-hole 34 closest to the first flow channel opening 31 and the first flow channel opening 31, or the distance between a point in the flow through-hole 34 furthest from the first flow channel opening 31 and the first flow channel opening 31.
[0073] For example, see Figures 11 to 13 When the distance between the flow through hole 34 and the first flow channel opening 31 is equal to L5, this is the first position. When the distance between the flow through hole 34 and the first flow channel opening 31 is equal to 2 / 3L5, this is the second position. When the distance between the flow through hole 34 and the first flow channel opening 31 is equal to 1 / 3L5, this is the third position. It should be noted that the distance between the flow through hole 34 and the first flow channel opening 31 cannot be zero. The correspondence between the above positions and the rotation angle of the valve core 2 is not specifically defined here. For ease of understanding... Figure 13 The direction indicated by the dashed arrow in the figure is the flow path of the medium from the second valve port 111 through the flow through hole 34 to the first valve port 110.
[0074] The second flow channel is described below using two possible methods as examples. It should be noted that the following descriptions are for understanding purposes only and are not intended to limit the specific application.
[0075] In one alternative approach, see Figures 11 to 14 A second flow channel is provided on the sealing ring 3.
[0076] For example, see Figure 14 A channel 90 is provided on the sealing ring 3, which connects the flow through hole 34 and the first valve port 110. The channel 90 extends through the sealing ring 3 along its thickness direction.
[0077] In another alternative, a portion of the outer wall of the sealing ring 3 is spaced apart from the inner wall of the valve body 1 to form a second flow channel.
[0078] For example, see Figure 12The outer wall of the sealing ring 3 has multiple spaced support ribs 4. In this application, there are no support ribs 4 between the flow through hole 34 and the first flow channel 31, or the support ribs 4 do not obstruct the flow of the medium. In this case, part of the outer wall of the sealing ring 3 is spaced apart from the inner wall of the valve body 1 to form a second flow channel 91.
[0079] Example 3: The flow channel includes both a flow groove 33 and a flow through hole 34. The relative positions of the flow groove 33 and the flow through hole 34 are not specifically limited here and can be set according to the actual situation. Further descriptions of the flow groove 33 and the flow through hole 34 can be found in Examples 1 and 2, and will not be repeated here.
[0080] In summary, when the sealing ring 3 provided in this application is applied inside the above-mentioned regulating valve, it can achieve small flow rate regulation even when the proportional adjustment angle is insufficient.
[0081] Secondly, this utility model embodiment also provides a regulating valve. See [link to related documentation]. Figures 4 to 13 The regulating valve includes a valve body 1, a valve core 2, and a sealing ring 3 as described in the above technical solution. At least three spaced valve ports are provided on the side wall of the valve body 1, and the multiple valve ports are distributed circumferentially on the valve body 1. The valve core 2 is rotatably disposed within the valve body 1, and the valve core 2 has a first flow channel 20 for communicating at least two adjacent valve ports. The sealing ring 3 is installed within the cavity of the valve body 1, and the valve core 2 is rotatably disposed within the cavity of the sealing ring 3, with the outer wall of the valve core 2 abutting against the inner wall of the sealing ring 3. At least one flow channel and multiple flow ports are provided on the side wall of the sealing ring 3, both the flow channel and the flow ports being opened along the thickness direction of the sealing ring, and the multiple flow ports communicating with multiple corresponding valve ports. The flow channel is located between two adjacent flow ports and communicates with an adjacent valve port. The flow channel has a first opening facing the valve core 2. The cross-sectional area of the flow channel is smaller than that of the flow outlet, and both the cross-section of the flow channel and the cross-section of the flow outlet are perpendicular to the thickness direction of the sealing ring 3.
[0082] The beneficial effects of the regulating valve provided in this embodiment are the same as those of the sealing ring 3 described in the above technical solution, and will not be repeated here.
[0083] The method of fixing the sealing ring and valve body can be selected according to the actual situation, and no specific limitation is made here. For example, the sealing ring and valve body are fixed by press fitting or other methods.
[0084] As one possible implementation, see Figure 4The regulating valve also includes an actuator 5 and an end cap 6. The actuator 5 is driven to rotate the valve core 2. The end cap 6 covers the valve body 1, and a portion of the valve core 2's structure passes through the end cap 6 and is connected to the actuator 5. In some embodiments, the valve core 2 also includes a spline disposed on the valve core 2 body, the spline passing through the end cap 6 and connected to the output gear of the actuator 5.
[0085] For example, actuator 5 can be an actuator from the related art, which mainly includes a housing, a motor, a gear set, and a circuit board.
[0086] In one alternative approach, see Figure 4 To ensure the sealing performance of the regulating valve, a sealing ring 7 is fitted on the end of the valve core 2.
[0087] In one alternative approach, see Figure 4 The regulating valve also includes an external leakage sealing ring 8, which is installed at the bottom of the valve body 1. The external leakage sealing ring 8 has multiple external leakage flow ports 80, which correspond to and communicate with multiple valve ports on the valve body 1. This further ensures the sealing performance of the regulating valve.
[0088] Thirdly, this utility model also provides a thermal management system. This thermal management system includes a pipeline and a regulating valve as described in the above-mentioned technical solution, with the pipeline connected to the regulating valve.
[0089] The beneficial effects of the thermal management system provided by this utility model are the same as those of the regulating valve described in the above technical solution, and will not be repeated here. Furthermore, it also facilitates the miniaturization of the thermal management system, saves on parts, and reduces manufacturing costs.
[0090] In the description of the above embodiments, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.
[0091] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model 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 utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.
Claims
1. A sealing ring, characterized in that, The valve is applied to a control valve, which includes a valve body and a valve core. At least three valve ports are provided on the side wall of the valve body, and the valve ports are distributed circumferentially on the valve body. The valve core has a first flow channel for communicating at least two adjacent valve ports. The sealing ring is installed inside the cavity of the valve body, the valve core is rotatably disposed inside the sealing ring, and the outer wall of the valve core abuts against the inner wall of the sealing ring; The sealing ring has at least one flow channel and multiple flow ports on its sidewall, both of which are opened along the thickness direction of the sealing ring. Each of the multiple flow ports is connected to a corresponding valve port. The flow channel is located between two adjacent flow ports and is connected to an adjacent valve port. The flow channel has a first opening facing the valve core. The cross-sectional area of the flow channel is smaller than the cross-sectional area of the flow ports, and both the cross-sections of the flow channel and the flow ports are perpendicular to the thickness direction of the sealing ring.
2. The sealing ring according to claim 1, characterized in that, The valve port communicating with the flow channel is a first valve port, and the flow channel port corresponding to and communicating with the first valve port is a first flow channel port; the flow channel includes a flow groove and / or a flow through hole; Along the arrangement direction of the plurality of flow channels, the flow groove has a second opening; the second opening extends circumferentially along the sealing ring to the first flow channel and communicates with the first flow channel. Along the thickness direction of the sealing ring, the flow-through hole penetrates the sealing ring; the flow-through hole communicates with the first valve port through the second flow channel.
3. The sealing ring according to claim 2, characterized in that, The valve core includes a plurality of spaced-apart partitions, the outer wall of which abuts against the inner wall of the sealing ring; the first flow channel is located between two adjacent partitions in one group; The depth of the flow groove is greater than or equal to 2 mm and less than or equal to the thickness of the sealing ring; The horizontal length of the flow channel is L1, where L1 = L2 + L3 + L4; where L2 represents the width of the separator, L3 represents the minimum horizontal length of the flow channel when it is used to flow medium to the valve port, and L4 represents the manufacturing deviation. The height of the flow channel is greater than or equal to 2 mm and less than or equal to 2 / 3 of the height of the first flow channel opening; the height direction of the flow channel is consistent with the height direction of the sealing ring.
4. The sealing ring according to claim 3, characterized in that, The value of L2 ranges from 0.5 mm to 3 mm, the value of L3 ranges from 1 mm to 4 mm, and the value of L4 ranges from 0 mm to 3 mm.
5. The sealing ring according to any one of claims 2 to 4, characterized in that, Along the height direction of the sealing ring, the cross-sectional shape of the second opening is rectangular, triangular, or trapezoidal.
6. The sealing ring according to claim 2, characterized in that, The valve core includes a plurality of spaced-apart partitions, the outer wall of which abuts against the inner wall of the sealing ring; the first flow channel is located between two adjacent partitions; the flow channel opening adjacent to the first flow channel opening is the second flow channel opening; the through hole is located between the first flow channel opening and the second flow channel opening. The horizontal distance between the flow through hole and the second flow channel opening is greater than or equal to the width of the separator.
7. The sealing ring according to claim 6, characterized in that, The minimum horizontal distance between the first flow channel opening and the second flow channel opening is L6; the one-dimensional dimension of the flow through hole is greater than or equal to 1 mm and less than or equal to 1 / 2 L6; And / or, along the height direction of the sealing ring, the cross-sectional shape of the flow hole is a closed shape formed by a line segment and an arc, or a rectangle, a circle, or an ellipse.
8. The sealing ring according to claim 2 or 6, characterized in that, The sealing ring is provided with a second flow channel; And / or, a portion of the outer wall of the sealing ring is spaced apart from the inner wall of the valve body to form the second flow channel.
9. A regulating valve, characterized in that, include: The valve body has at least three spaced valve ports on its side wall, and the valve ports are distributed circumferentially on the valve body. A valve core having a first flow channel for communicating at least two adjacent valve ports; And the sealing ring according to any one of claims 1 to 8; the sealing ring is installed in the cavity of the valve body, the valve core is rotatably disposed in the sealing ring, and the outer wall of the valve core abuts against the inner wall of the sealing ring; The sealing ring has at least one flow channel and multiple flow ports on its sidewall, both of which are opened along the thickness direction of the sealing ring. Each of the multiple flow ports is connected to a corresponding valve port. The flow channel is located between two adjacent flow ports and is connected to an adjacent valve port. The flow channel has a first opening facing the valve core. The cross-sectional area of the flow channel is smaller than the cross-sectional area of the flow ports, and both the cross-sections of the flow channel and the flow ports are perpendicular to the thickness direction of the sealing ring.
10. A thermal management system, characterized in that, include: The pipeline and the regulating valve of claim 9; the pipeline is connected to the regulating valve.