Flow control valve and heat exchange system having same, and vehicle

Abstract

A flow control valve and a heat exchange system having same, and a vehicle. The flow control valve (1) comprises: a valve housing (10), which defines a water intake cavity (11) and a water output cavity (12), the water intake cavity (11) being in communication with the water output cavity (12) by means of a water passage hole (13); and a valve core (20), which is arranged within the valve housing (10) and is configured to change the flow area of the water passage hole (13), wherein the water passage hole (13) has a first arc-shaped edge (131) and a second arc-shaped edge (132) which are arranged opposite each other, and the center of the circle where the first arc-shaped edge (131) is located and the center of the circle where the second arc-shaped edge (132) is located are both located on the axis of rotation of the valve core (20).

Description

Flow control valves and heat exchange systems with them, vehicles

[0001] Cross-references to related applications

[0002] This application is based on and claims priority to Chinese Patent Application No. 2024109660316, filed on July 18, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of flow control valve technology, and more specifically, to a flow control valve and a heat exchange system and vehicle having the same. Background Technology

[0004] Battery modules need to operate at the optimal temperature. In related technologies, fluid flow is used to dissipate heat from the battery module. When the valve is opened, the fluid flows and can dissipate heat from the battery module. However, during the valve movement, the water flow at the valve is prone to sudden changes, resulting in large fluctuations in the battery module temperature.

[0005] Application content

[0006] This application aims to at least solve one of the technical problems existing in the prior art. To this end, this application proposes a flow regulating valve that can control the outlet flow rate of the flow regulating valve to increase or decrease uniformly, thereby facilitating precise control of the flow rate to the heat exchange element, so as to raise or lower the heat exchange element to a specified temperature.

[0007] This application also proposes a heat exchange system having the aforementioned flow regulating valve.

[0008] This application also proposes a vehicle having the aforementioned heat exchange system.

[0009] A flow regulating valve according to a first aspect of this application includes: a valve housing defining an inlet chamber and an outlet chamber, the inlet chamber and the outlet chamber being connected through a water passage hole; and a valve core rotatably disposed within the valve housing for changing the flow area of ​​the water passage hole; wherein the water passage hole has a first arcuate edge and a second arcuate edge disposed opposite to each other, the center of the circle containing the first arcuate edge and the center of the circle containing the second arcuate edge are both located on the rotation axis of the valve core.

[0010] According to the embodiments of this application, the flow regulating valve can control the outlet flow of the flow regulating valve to increase or decrease uniformly, which facilitates precise control of the flow to the heat exchange component, so that the heat exchange component can be raised or lowered to a specified temperature.

[0011] In addition, the flow regulating valve according to the above embodiments of this application may also have the following additional technical features:

[0012] According to some embodiments of this application, the first arc-shaped hole edge is located outside the second arc-shaped hole edge, and the central angle of the first arc-shaped hole edge is greater than the central angle of the second arc-shaped hole edge.

[0013] According to some optional embodiments of this application, the water passage further has a first straight hole edge and a second straight hole edge arranged opposite to each other. The two ends of the first straight hole edge are respectively connected to one end of the first arc-shaped hole edge and one end of the second arc-shaped hole edge, and the two ends of the second straight hole edge are respectively connected to the other end of the first arc-shaped hole edge and the other end of the second arc-shaped hole edge; wherein, the valve core includes a valve plate for changing the flow area of ​​the water passage, the valve plate is a fan-shaped structure and the center of the fan-shaped structure is located on the rotation axis of the valve core.

[0014] According to some specific embodiments of this application, the first straight hole edge and the second arcuate hole edge have a first intersection point at one end. The first straight hole edge is radially inclined relative to the second arcuate hole edge at the first intersection point. The water passage hole includes a first hole portion and a second hole portion arranged in the extending direction of the first arcuate hole edge. When the valve plate is rotated to the first position, one side edge of the valve plate coincides with one end of the first arcuate hole edge, and the valve plate closes the first hole portion and the second hole portion. When the valve plate is rotated to the second position, one side edge of the valve plate coincides with one end of the second arcuate hole edge, and the valve plate opens the first hole portion and closes the second hole portion. When the valve plate is rotated to the third position, one side edge of the valve plate coincides with the other end of the second arcuate hole edge, and the valve plate opens the first hole portion and the second hole portion.

[0015] In some embodiments, the second straight hole edge and the second arcuate hole edge have a second intersection point at the other end. The second straight hole edge is radially inclined relative to the second arcuate hole edge at the second intersection point, and the first straight hole edge and the second straight hole edge are symmetrically arranged about the center line of the second arcuate hole edge. The water passage hole also includes a third hole portion, which is located on the side of the second hole portion away from the first hole portion. When the valve plate is rotated to the fourth position, one side edge of the valve plate coincides with the other end of the first arcuate hole edge, and the valve plate opens the first hole portion, the second hole portion, and the third hole portion.

[0016] According to some specific embodiments of this application, the water outlet chamber, the water passage hole, and the valve plate each include at least two, and the two water outlet chambers and the water inlet chamber are respectively connected one-to-one through the two water passage holes; wherein, when one of the valve plates is fully open to one of the water passage holes, the other valve plate is fully closed to the other water passage hole.

[0017] In some embodiments, the two valve plates do not simultaneously close the two water passages.

[0018] In some embodiments, the valve housing is provided with a limiting protrusion, and one side of each of the two valve plates is provided with a limiting groove. The limiting protrusion is adapted to cooperate with the limiting groove to limit the rotation range of the valve core.

[0019] According to some embodiments of this application, the flow regulating valve further includes a first sealing element, which is disposed within the valve housing and extends circumferentially along the water passage hole for sealing cooperation with the valve core.

[0020] According to some alternative embodiments of this application, one of the valve housing and the first seal is provided with a mating protrusion, and the other is provided with a mating groove that mates with the mating protrusion.

[0021] According to some embodiments of this application, the valve core includes a rotatable valve stem, a portion of which is disposed within the valve housing; the flow regulating valve further includes a drive member, which is fixed to the valve housing and connected to one end of the valve stem extending outside the valve housing, for driving the valve stem to rotate.

[0022] According to some optional embodiments of this application, the valve housing has a positioning hole, and the other end of the valve stem has a positioning protrusion that engages with the positioning hole.

[0023] According to some optional embodiments of this application, the valve housing has a perforation, the valve stem passes through the perforation, and a second sealing element is provided between the wall of the perforation and the valve stem to seal the gap between the wall of the perforation and the valve stem.

[0024] According to some specific embodiments of this application, a limiting boss is provided on the wall of the perforation near the driving member, and a fixing member is provided at the end of the perforation away from the driving member. The fixing member is sleeved on the valve stem and the second sealing member is limited between the fixing member and the limiting boss.

[0025] In some embodiments, the fixing member has an oil groove on the side away from the second seal and at the position that mates with the valve core for storing lubricating oil.

[0026] According to a second aspect of this application, a heat exchange system is provided, the heat exchange system comprising: a heat exchanger; a heat exchange component having a heat exchange chamber; a flow regulating valve according to a first aspect of this application, wherein the inlet chamber is connected to the heat exchanger, and the heat exchange chamber is connected to the outlet chamber and the heat exchanger; and a power component for driving the heat exchange medium to flow between the heat exchanger and the heat exchange component.

[0027] According to the heat exchange system of the present application embodiment, by utilizing the flow regulating valve described in the first aspect of the present application embodiment, the outflow rate of the flow regulating valve can be controlled to increase or decrease uniformly, which facilitates precise control of the flow rate to the heat exchange component, so that the heat exchange component can be raised or lowered to a specified temperature.

[0028] According to a third aspect of this application, a vehicle is provided, the vehicle including a heat exchange system according to a second aspect of this application, wherein the heat exchange component includes a heat exchange element of a battery pack and / or a heater core.

[0029] According to the vehicle of the present application embodiment, by utilizing the heat exchange system described in the embodiment of the second aspect of the present application, the water flow rate of the flow regulating valve can be controlled to increase or decrease uniformly, which facilitates precise control of the flow rate to the heat exchange component, so that the heat exchange component can be raised or lowered to a specified temperature.

[0030] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0031] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0032] Figure 1 is a schematic diagram of the flow regulating valve according to an embodiment of this application;

[0033] Figure 2 is a schematic diagram of the valve body of the flow regulating valve according to an embodiment of this application;

[0034] Figure 3 is a schematic diagram of the positions of the valve plate and the water passage according to an embodiment of this application, with the shaded area representing the closed water passage area;

[0035] Figure 4 is a schematic diagram of the valve plate and the water passage when it is in the first position, the second position, the third position and the fourth position according to the embodiment of this application, respectively. The shaded part is the water passage area that is closed.

[0036] Figure 5 is a schematic diagram showing the relative position of one side edge of the valve plate and the water passage hole after the valve core is rotated at a certain angle according to an embodiment of this application.

[0037] Figure 6 is a structural schematic diagram of the valve cover in one direction according to an embodiment of the present application;

[0038] Figure 7 is a structural schematic diagram of the valve cover in another direction according to an embodiment of this application;

[0039] Figure 8 is a structural cross-sectional view of the valve housing according to an embodiment of this application;

[0040] Figure 9 is a structural schematic diagram of the first sealing member according to an embodiment of the present application in one direction;

[0041] Figure 10 is a structural schematic diagram of the first sealing member according to an embodiment of the present application in another direction;

[0042] Figure 11 is a schematic diagram of the valve core in one direction according to an embodiment of the present application;

[0043] Figure 12 is a schematic diagram of the valve core according to an embodiment of this application in another direction;

[0044] Figure 13 is a structural schematic diagram of the fastener according to an embodiment of the present application in one direction;

[0045] Figure 14 is a structural schematic diagram of the fastener according to an embodiment of this application in another direction;

[0046] Figure 15 is a schematic diagram of a heat exchange system according to an embodiment of this application;

[0047] Figure 16 is a structural schematic diagram of a vehicle according to an embodiment of this application.

[0048] Figure label: Flow regulating valve 1,

[0049] Valve housing 10, valve body 101, valve cover 102, inlet chamber 11, outlet chamber 12.

[0050] Water passage hole 13, first water passage hole 1301, second water passage hole 1302, first hole portion 13a, second hole portion 13b, third hole portion 13c.

[0051] First arc-shaped hole edge 131, second arc-shaped hole edge 132, first straight hole edge 133, second straight hole edge 134.

[0052] Limiting protrusion 14, mating protrusion 15, positioning hole 16, through hole 17, limiting boss 18, water inlet pipe 190, first water outlet pipe 191, second water outlet pipe 192.

[0053] Valve core 20, valve plate 21, first valve plate 2101, second valve plate 2102, limiting groove 211, valve stem 22, positioning protrusion 221, mating teeth 23.

[0054] First seal 31, mating groove 315, second seal 32, driving member 41, fixing member 42, oil groove 421, protrusion 422, step portion 423.

[0055] Heat exchange system 5, heat exchanger 51, power component 52, heat exchange component of battery pack 53, heater core 54

[0056] Vehicle 6. Detailed Implementation

[0057] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0058] The flow regulating valve 1 according to an embodiment of this application is described below with reference to the accompanying drawings.

[0059] As shown in Figures 1-3, the flow regulating valve 1 according to an embodiment of this application includes a valve body 10 and a valve core 20.

[0060] The valve housing 10 defines an inlet chamber 11 and an outlet chamber 12. The inlet chamber 11 and the outlet chamber 12 are connected through a water passage 13. The valve core 20 is rotatably disposed inside the valve housing 10. The valve core 20 is used to change the flow area of ​​the water passage 13. Water in the inlet chamber 11 will enter the outlet chamber 12 through the water passage 13 and flow out from the outlet chamber 12. By changing the flow area of ​​the water passage 13, the valve core 20 can change the water flow rate of the flow regulating valve 1. It should be explained here that the flow rate refers to the amount of water discharged per unit time. The larger the flow area of ​​the water passage 13, the larger the flow rate entering the outlet chamber 12, and the larger the water flow rate of the flow regulating valve 1. The smaller the flow area of ​​the water passage 13, the smaller the flow rate entering the outlet chamber 12, and the smaller the water flow rate of the flow regulating valve 1.

[0061] The water passage 13 has a first arc-shaped hole edge 131 and a second arc-shaped hole edge 132 arranged opposite to each other. The center of the circle containing the first arc-shaped hole edge 131 and the center of the circle containing the second arc-shaped hole edge 132 are both located on the rotation axis of the valve core 20. Thus, when the valve core 20 rotates within a certain range, the flow area of ​​the water passage 13 increases or decreases by a certain angle, which is the area of ​​the annular sector. That is, the change value of the flow area of ​​the water passage 13 is the same. Thus, when the valve core 20 rotates within this range, the flow area of ​​the water passage 13 is linearly related to the rotation angle of the valve core 20, so that the flow rate entering the water outlet chamber 12 through the water passage 13 increases or decreases uniformly, and the water flow rate of the flow regulating valve 1 increases or decreases uniformly.

[0062] For example, if the first arc-shaped hole edge 131 is located outside the second arc-shaped hole edge 132, the radius of the first arc-shaped hole edge 131 is R1, and the radius of the second arc-shaped hole edge 132 is R2, when the valve core 20 rotates between the initial position and the end position, the flow area of ​​the water passage hole 13 is linearly related to the rotation angle of the valve core 20. When the valve core 20 rotates clockwise from the initial position to the end position, the flow area of ​​the water passage hole 13 gradually increases. When the valve core 20 is in the initial position and the end position, the projection of one side edge of the valve core 20 on the rotation axis intersects with both the first arc-shaped hole edge 131 and the second arc-shaped hole edge 132.

[0063] When the valve core 20 is in the initial position, the initial flow area of ​​the water passage 13 is S0. When the valve core 20 rotates from the initial position to the final position, the flow area of ​​the water passage 13 is S0 + nπ(R1) / n ... 2 -R2 2 ) / 360°, where n is the angle at which the valve core 20 rotates from its initial position. That is, when the valve core 20 rotates from its initial position to its final position, the flow area of ​​the water passage 13 is: the square of the radius of the first arc-shaped hole along 131 minus the square of the radius of the second arc-shaped hole along 132 divided by 360°, multiplied by the product of the angle at which the valve core 20 rotates from its initial position and pi, plus the initial flow area of ​​the water passage 13.

[0064] Therefore, the flow area of ​​the water passage 13 is linearly related to the rotation angle of the valve core 20. When the valve core 20 rotates by the same angle, the change in the flow area of ​​the water passage 13 is the same.

[0065] In other words, when the valve core 20 rotates within this range, it can uniformly increase or decrease the flow area of ​​the water passage 13, thereby uniformly increasing or decreasing the flow rate entering the water outlet chamber 12 through the water passage 13, and uniformly increasing or decreasing the water flow rate of the flow regulating valve 1.

[0066] Wherein, S0 is a constant, and S0 = 0 when the central angle of the first arc-shaped hole along 131 is equal to the central angle of the second arc-shaped hole along 132, and when the valve core 20 is in the initial position, and the ends of the first arc-shaped hole along 131 and the second arc-shaped hole along 132 both coincide with the projection line of one side edge of the valve core 20.

[0067] In some embodiments, the flow regulating valve 1 is applied to the heat exchange system 5. The cold or hot water that has been heated by the heat exchange system 5 enters the inlet chamber 11. The cold or hot water in the inlet chamber 11 enters the outlet chamber 12 through the water passage 13 and flows from the outlet chamber 12 to the heat exchange component to heat or cool the heat exchange component.

[0068] When the valve core 20 is rotated to adjust the flow area of ​​the water passage 13, the flow rate of the flow regulating valve 1 can be controlled to increase or decrease uniformly when the valve core 20 rotates within a certain range. This facilitates precise control of the flow rate to the heat exchange component, allowing the heat exchange component to be raised or lowered to the specified temperature.

[0069] Therefore, the flow regulating valve 1 according to the embodiment of this application can control the outflow of water from the flow regulating valve 1 to increase or decrease uniformly, which facilitates precise control of the flow to the heat exchange component, so that the heat exchange component can be raised or lowered to a specified temperature.

[0070] The flow regulating valve 1 according to a specific embodiment of this application is described below with reference to the accompanying drawings.

[0071] In some specific embodiments of this application, as shown in Figures 1-3, the flow regulating valve 1 includes a valve housing 10 and a valve core 20.

[0072] In some embodiments of this application, as shown in FIG3, the first arc-shaped hole edge 131 is located outside the second arc-shaped hole edge 132, and the central angle of the first arc-shaped hole edge 131 is greater than the central angle of the second arc-shaped hole edge 132. When one side edge of the valve core 20 rotates into the central angle of the second arc-shaped hole edge 132, the flow area of ​​the water passage hole 13 is linearly related to the rotation angle of the valve core 20. When the valve core 20 rotates by the same angle, the change value of the flow area of ​​the water passage hole 13 is the same.

[0073] In some embodiments, one side edge of the valve core 20 is a straight line and is larger than the radius of the first arc-shaped hole edge 131. When the valve core 20 rotates and the flow area of ​​the water passage hole 13 is linearly related to the rotation angle of the valve core 20, the projection of one side edge of the valve core 20 onto the rotation axis of the valve core 20 intersects at least the first arc-shaped hole edge 131.

[0074] Here, the first arc-shaped hole along 131 is called arc ML, and the second arc-shaped hole along 132 is called arc JK. When the valve core 20 rotates clockwise, one side edge of the valve core 20 coincides with points L, K, J, and M on the projection of its rotation axis in sequence. When the projection line of one side edge of the valve core 20 coincides with point K, the valve core 20 is in the initial position. When the projection line of one side edge of the valve core 20 coincides with point J, the valve core 20 is in the final position. When the valve core 20 rotates between the initial and final positions, for every 1 degree of rotation, the change in the flow area of ​​the water passage 13 is π(R1). 2 -R2 2 At 360°, the flow area of ​​the water passage hole 13 is linearly related to the rotation angle of the valve core 20, so that the flow area of ​​the water passage hole 13 can be uniformly increased or decreased.

[0075] As shown in Figure 3, in some embodiments, the central angle of the first arc-shaped hole along 131 is φ1, φ1 = 80°; the central angle of the second arc-shaped hole along 132 is φ2, φ2 = 60°.

[0076] In some optional embodiments of this application, as shown in Figures 3 and 4, the water passage 13 further has a first straight hole edge 133 and a second straight hole edge 134 arranged opposite to each other. The two ends of the first straight hole edge 133 are respectively connected to one end of the first arc-shaped hole edge 131 and one end of the second arc-shaped hole edge 132. The two ends of the second straight hole edge 134 are respectively connected to the other end of the first arc-shaped hole edge 131 and the other end of the second arc-shaped hole edge 132. The first arc-shaped hole edge 131, the second arc-shaped hole edge 132, the first straight hole edge 133 and the second straight hole edge 134 define a portion of the water passage 13 as a fan-shaped annular shape.

[0077] The valve core 20 includes a valve plate 21, which is used to change the flow area of ​​the water passage 13. The valve plate 21 has a fan-shaped structure and the center of the fan-shaped structure is located on the rotation axis of the valve core 20. That is, the center of the valve core 20, the center of the first arc-shaped hole 131, and the center of the second arc-shaped hole 132 are all located on the rotation axis of the valve core 20. When the valve core 20 rotates by the same angle, the arc length swept by one side edge of the valve core 20 on the first arc-shaped hole 131 is equal, and the arc length swept by one side edge of the valve core 20 on the second arc-shaped hole 132 is equal. When the valve core 20 rotates within a certain range, the flow area of ​​the water passage 13 is linearly related to the rotation angle of the valve core 20, so that the flow area of ​​the water passage 13 increases or decreases uniformly.

[0078] In some embodiments, the radius R3 of the valve plate 21 is greater than the radius R1 of the first arc-shaped hole 131, and the central angle φ3 of the valve plate 21 is greater than the central angle φ1 of the first arc-shaped hole 131, so that the valve core 20 can cover the water passage hole 13 and the valve core 20 can completely close the water passage hole 13.

[0079] In some examples, the central angle φ3 of the valve core 20 is 90°.

[0080] In some specific embodiments of this application, as shown in Figures 3 and 4, the first straight hole edge 133 and the second arc-shaped hole edge 132 have a first intersection point at one end. The first straight hole edge 133 is radially inclined relative to the second arc-shaped hole edge 132 at the first intersection point. The water passage hole 13 includes a first hole portion 13a and a second hole portion 13b arranged in the extension direction of the first arc-shaped hole edge 131. Here, the first arc-shaped hole edge 131 is referred to as arc ML, the second arc-shaped hole edge 132 is referred to as arc JK, and the center of the first arc-shaped hole edge 131, the second arc-shaped hole edge 132 and the valve plate 21 is point O.

[0081] Specifically, as shown in Figure 3, the first straight hole along 133 is line segment KL, the second arc-shaped hole along 132 is arc JK, the first intersection is point K, and the radial direction of the second arc-shaped hole along 132 at point K is the extension direction of OK. The first straight hole along 133 is set radially at the first intersection relative to the second arc-shaped hole along 132, that is, the line segment KL extends at an angle relative to the extension direction of the line segment OK.

[0082] As shown in Figure 4(a), when the valve plate 21 is rotated to the first position, one side edge of the valve plate 21 coincides with one end of the first arc-shaped hole edge 131, and the valve plate 21 closes the first hole 13a and the second hole 13b. At this time, when one side edge of the valve plate 21 coincides with point L, the valve plate 21 completely covers the first hole 13a and the second hole 13b, and the flow area of ​​the water passage hole 13 is 0.

[0083] As shown in Figure 4(b), when the valve plate 21 is rotated to the second position, one side edge of the valve plate 21 coincides with one end of the second arc-shaped hole edge 132, and the valve plate 21 opens the first hole 13a and closes the second hole 13b. At this time, one side edge of the valve plate 21 coincides with point K, and the valve plate 21 fully opens the first hole 13a and completely covers the second hole 13b. At this time, the flow area of ​​the water passage hole 13 is the area of ​​the first hole 13a.

[0084] When the valve plate 21 rotates from the first position to the second position, the flow area of ​​the water passage 13 gradually increases. When the valve core 20 rotates by the same angle, the flow area of ​​the water passage 13 increases more and more. That is, when the valve core 20 gradually opens the first hole 13a, the relationship between the flow area of ​​the water passage 13 and the angle of rotation of the valve core 20 is a curve and the slope of the curve becomes larger and larger. This ensures that when the first hole 13a is opened, the water flow of the flow regulating valve 1 is small and the increase in water flow is small. As the valve core 20 rotates, the increase in water flow is larger, so that the water flow of the flow regulating valve 1 can be adjusted with a small amplitude at the beginning.

[0085] Specifically, when the flow regulating valve 1 is applied to the heat exchange system 5, the cold or hot water that has been heated by the heat exchange system 5 enters the inlet chamber 11. The cold or hot water in the inlet chamber 11 enters the outlet chamber 12 through the water passage 13. From the outlet chamber 12, it flows to the heater core 54 or the heat exchange component 53 of the battery pack. The heater core 54 can blow the heat or cool air from the water to the driving and riding area of ​​the vehicle 6 to provide a comfortable temperature for the occupants of the vehicle 6. The cold or hot water flowing to the heat exchange component 53 of the battery pack is used to regulate the heat of the battery pack so that the battery pack is at a suitable operating temperature.

[0086] When the valve core 20 just opens the first hole 13a and water flows to the heater core 54 through the flow regulating valve 1, a small amount of water flows to the heater core 54 and the increase in water flow rate is small, so as to avoid too much water flowing to the heater core 54. If too much water flows to the heater core 54, such as too much hot water, it is easy to cause the temperature difference felt by the driver and passengers to be too large in an instant, which will affect the comfort.

[0087] When the valve core 20 just begins to open the first orifice 13a, and water flows through the flow regulating valve 1 to the heat exchange component 53 of the battery pack, a small amount of water flows to the heat exchange component 53 of the battery pack, and the increase in the outflow rate is small, so as to avoid too much water flowing to the heat exchange component 53 of the battery pack. If too much water flows to the heat exchange component 53 of the battery pack, for example, too much hot water, it will cause the temperature at the heat exchange component 53 of the battery pack to be too high. In this case, it is necessary to wait for the heat exchange component 53 of the battery pack to cool down, which takes a long time.

[0088] As shown in Figure 5, for ease of description, when the valve core 20 rotates n degrees and gradually opens the first hole 13a, the position of one side edge of the valve plate 21 during the rotation process is Z1, Z2, Z3 and Z4 respectively. When one side edge of the valve plate 21 is at Z1, the area of ​​the first hole 13a that is opened is S1; when one side edge of the valve plate 21 is at Z2, the area of ​​the first hole 13a that is opened is S1+S2; when one side edge of the valve plate 21 is at Z3, the area of ​​the first hole 13a that is opened is S1+S2+S3; when one side edge of the valve plate 21 is at Z4, the area of ​​the first hole 13a that is opened is S1+S2+S3+S4.

[0089] When valve plate 21 rotates n degrees from the first position, one edge of valve plate 21 rotates to position Z1, at which point the flow area of ​​water passage 13 increases from 0 to S1; when valve core 20 continues to rotate n degrees, one edge of valve plate 21 rotates to position Z2, at which point the flow area of ​​water passage 13 increases from S1 to S1+S2. During this process, valve core 20 rotates n degrees, and the flow area of ​​water passage 13 increases by S2; when valve core 20 continues to rotate n degrees, one edge of valve plate 21 rotates to position Z1... At position 3, the flow area of ​​the water passage 13 increases from S1+S2 to S1+S2+S3. During this process, the valve core 20 rotates n degrees, and the flow area of ​​the water passage 13 increases by S3. When the valve core 20 continues to rotate n degrees, one edge of the valve plate 21 rotates to position Z4. At this time, the flow area of ​​the water passage 13 increases from S1+S2+S3 to S1+S2+S3+S4. During this process, the valve core 20 rotates n degrees, and the flow area of ​​the water passage 13 increases by S4.

[0090] Since the first arc-shaped hole edge 131 is located outside the second arc-shaped hole edge 132, the central angle of the first arc-shaped hole edge 131 is greater than the central angle of the second arc-shaped hole edge 132, and the first straight hole edge 133 is radially inclined at one end relative to the second arc-shaped hole edge 132, therefore S4 > S3 > S2 > S1. In addition, S1, S2, S3 and S4 can also be approximated as trapezoids. The area formula of a trapezoid is (upper base + lower base) × height ÷ 2. The heights of S1, S2, S3 and S4 are the same, while the sum of the upper base and the lower base increases sequentially. Therefore, S4 > S3 > S2 > S1.

[0091] In other words, as the valve core 20 gradually opens the first hole 13a during rotation, the increase in the flow area of ​​the water passage 13 gradually increases. That is, the flow area of ​​the water passage 13 and the angle of rotation of the valve core 20 are in a curved relationship, and the slope of the curve becomes larger and larger. So that when the valve core 20 just opens the first hole 13a and water flows to the heat exchanger through the flow regulating valve 1, a small amount of water flows to the heat exchanger and the increase in the outflow rate is small, so as to avoid too much water suddenly flowing to the heat exchanger.

[0092] As shown in Figure 4(c), when the valve plate 21 is rotated to the third position, one side edge of the valve plate 21 coincides with the other end of the second arc-shaped hole edge 132, and the valve plate 21 opens the first hole 13a and the second hole 13b. At this time, one side edge of the valve plate 21 coincides with point J. At this time, the flow area of ​​the water passage hole 13 is the sum of the areas of the first hole 13a and the second hole 13b.

[0093] During the process of the valve plate 21 rotating from the second position to the third position, the flow area of ​​the water passage 13 gradually increases, and when the valve core 20 rotates by the same angle, the flow area of ​​the water passage 13 increases by the same amount. That is, when the valve core 20 gradually opens the second hole 13b, the flow area of ​​the water passage 13 increases at the same rate. In other words, the flow area of ​​the water passage 13 is linearly related to the angle of rotation of the valve core 20, so that when the water passage 13 rotates and gradually opens the second hole 13b, the flow area of ​​the water passage 13 increases uniformly.

[0094] Specifically, as the valve plate 21 gradually opens the second hole 13b, the flow area of ​​the water passage 13 increases to the area of ​​a fan-shaped annulus, and the area of ​​the fan-shaped annulus is nπ(R1). 2 -R2 2 ) / 360°, where n is the angle at which the valve plate 21 rotates from the second position. Therefore, when the valve core 20 gradually opens the second hole 13b, the valve core 20 rotates by the same angle, and the flow area of ​​the water passage hole 13 increases by the same amount, so that the flow area of ​​the water passage hole 13 increases uniformly.

[0095] That is, when the valve plate 21 gradually opens the second hole 13b, the flow area of ​​the water passage 13 increases by the value of the square of the radius of the first arc-shaped hole along 131 minus the square of the radius of the second arc-shaped hole along 132 divided by 360°, multiplied by the product of the angle of rotation of the valve plate 21 from the second position and pi.

[0096] In some specific embodiments of this application, the second straight hole edge 134 and the second arc-shaped hole edge 132 have a second intersection point at the other end. The second straight hole edge 134 is radially inclined relative to the second arc-shaped hole edge 132 at the second intersection point. The first straight hole edge 133 and the second straight hole edge 134 are symmetrically arranged about the center line of the second arc-shaped hole edge 132. The water passage hole 13 also includes a third hole portion 13c. The third hole portion 13c is located on the side of the second hole portion 13b away from the first hole portion 13a. That is, when the valve core 20 rotates in a specified direction, the valve core 20 gradually opens the first hole portion 13a, the second hole portion 13b and the third hole portion 13c in sequence.

[0097] Specifically, as shown in Figure 3, the second straight hole along 134 is line segment JM, the second arc-shaped hole along 132 is arc JK, the second intersection is point J, the radial direction of the second arc-shaped hole along 132 at point J is the extension direction of OJ, the second straight hole along 134 is set radially at the second intersection relative to the second arc-shaped hole along 132, that is, the line segment JM extends at an angle relative to the extension direction of the line segment OJ.

[0098] As shown in Figure 4(d), when the valve plate 21 is rotated to the fourth position, one edge of the valve plate 21 coincides with the other end point M of the first arc-shaped hole edge 131. At this time, the valve plate 21 opens the first hole 13a, the second hole 13b and the third hole 13c. The flow area of ​​the water passage hole 13 is the sum of the flow areas of the first hole 13a, the second hole 13b and the third hole 13c.

[0099] As shown in Figure 5, when the valve plate 21 rotates from the third position to the fourth position, the flow area of ​​the water passage 13 gradually increases. When the valve core 20 rotates by the same angle, the flow area of ​​the water passage 13 increases by a smaller and smaller amount. That is, when the valve core 20 gradually opens the third hole 13c, the relationship between the flow area of ​​the water passage 13 and the angle of rotation of the valve core 20 is a curve and the slope of the curve becomes smaller and smaller. This is so that when the water passage 13 is fully opened at the end, the increase in the water flow rate is smaller, and the water flow rate of the flow valve is adjusted by a smaller amount at the end.

[0100] The analysis of the change in the flow area of ​​the water passage 13 during the rotation of the valve plate 21 from the third position to the fourth position is the same as the analysis of the valve core 20 when it rotates from the first position to the second position, and will not be elaborated on here.

[0101] Furthermore, the first straight hole along 133 and the second straight hole along 134 are arranged symmetrically about the center line of the second arc-shaped hole along 132, so that the change in the flow area at the water passage 13 is the same when the valve core 20 rotates in the forward or reverse direction to open the water passage 13.

[0102] Specifically, when the valve core 20 completely closes the water passage 13, regardless of whether the valve core 20 rotates in the forward or reverse direction to gradually open the water passage 13, the change in the flow area at the water passage 13 at the beginning is the same. The relationship between the flow area of ​​the water passage 13 and the angle of rotation of the valve core 20 is a curve, and the slope of the curve becomes larger and larger.

[0103] In some embodiments, the central angle of the first arc-shaped hole along 131 is φ1, φ1 = 80°, and the central angle of the second arc-shaped hole along 132 is φ2, φ2 = 60°. After the valve core 20 rotates 10°, the valve plate 21 rotates from the first position to the second position. During this process, the flow area of ​​the water passage hole 13 and the angle of rotation of the valve core 20 are related by a curve, and the slope of the curve becomes larger and larger. After the valve core 20 continues to rotate 60°, it rotates from the second position to the third position. During this process, the flow area of ​​the water passage hole 13 and the angle of rotation of the valve core 20 are related by a linear relationship. After the valve core 20 continues to rotate 10°, the valve plate 21 rotates from the third position to the fourth position. The flow area of ​​the water passage hole 13 and the angle of rotation of the valve core 20 are related by a curve, and the slope of the curve becomes smaller and smaller.

[0104] When the valve plate 21 completely covers the water passage hole 13 and the flow area at the water passage hole 13 is 0, the valve plate 21 can rotate in the forward or reverse direction to gradually open the water passage hole 13. During the process of the valve plate 21 rotating in the forward or reverse direction and opening the water passage hole 13, it rotates sequentially from the first position to the second position, the third position and the fourth position.

[0105] Furthermore, as the valve plate 21 gradually closes the water passage 13 and the flow area of ​​the water passage 13 gradually decreases (i.e., as it rotates sequentially from the fourth position to the third, second, and first positions), when the valve plate 21 rotates from the fourth position to the third position, the relationship between the flow area of ​​the water passage 13 and the rotation angle of the valve core 20 is a curve with an increasingly larger slope; when the valve plate 21 rotates from the third position to the second position, the relationship between the flow area of ​​the water passage 13 and the rotation angle of the valve plate 21 is linear; when the valve plate 21 rotates from the second position to the first position, the relationship between the flow area of ​​the water passage 13 and the rotation angle of the valve core 20 is a curve with an increasingly smaller slope. The analysis logic for the flow area of ​​the water passage 13 is the same as described above and will not be repeated here.

[0106] In some optional embodiments of this application, as shown in Figures 1 and 2, the water outlet chamber 12, the water passage hole 13 and the valve plate 21 each include at least two, and the two water outlet chambers 12 and the water inlet chamber 11 are respectively connected one-to-one through the two water passage holes 13. In the state where one valve plate 21 is fully open to one of the water passage holes 13, the other valve plate 21 is fully closed to the other water passage hole 13.

[0107] When the two valve plates 21 of the valve core 20 rotate, one valve plate 21 gradually opens its corresponding water passage hole 13, while the other valve plate 21 gradually closes its corresponding water passage hole 13. Specifically, the total opening area of ​​the two water passage holes 13 is constant. Here, we assume that the total opening amount of the two water passage holes 13 is 100%. When the opening amount of one water passage hole 13 is 20%, the opening amount of the other water passage hole 13 is 80%; when the opening amount of one water passage hole 13 is 30%, the opening amount of the other water passage hole 13 is 70%; and when the opening amount of one water passage hole 13 is 40%, the opening amount of the other water passage hole 13 is 60%.

[0108] By setting two water outlet chambers 12 and two water passage holes 13, the amount of water entering the two water outlet chambers 12 can be controlled, thereby allowing the water in the two water outlet chambers 12 to flow to different areas respectively.

[0109] It needs to be explained here that in the embodiment where the flow regulating valve 1 includes only one outlet chamber 12, water passage 13 and valve plate 21, the total water output of the flow regulating valve 1 changes when the valve plate 21 rotates to change the flow area of ​​the water passage 13. When the flow regulating valve 1 includes two outlet chambers 12, water passage 13 and valve plate 21, the total water output of the flow regulating valve 1 remains unchanged because while one valve plate 21 is gradually closing the corresponding water passage 13, the other valve plate 21 is gradually opening the corresponding water passage 13.

[0110] In some embodiments, as shown in FIG2, the valve housing 10 includes a valve body 101 and a valve cover 102. The valve body 101 defines a circular chamber, which is divided into two semicircles of equal area by a partition. The water inlet chamber 11 is located on one side of the partition, and the two water outlet chambers 12 are located on the other side of the partition. The first straight hole 133 and the second straight hole 134 of the water passage 13 are perpendicular to each other to uniformly distribute the space on the other side of the partition, and the two water outlet chambers 12 and the two water passages 13 are reasonably arranged in the space on the other side of the partition.

[0111] In some examples, the valve body 101 and the valve cover 102 are fixedly connected by screws.

[0112] In some specific embodiments of this application, the two valve plates 21 do not close the two water passage holes 13 at the same time, so that at least one of the two water outlet chambers 12 is connected to the water inlet chamber 11, thereby avoiding the formation of a pressure difference at both ends of the valve plate 21 and avoiding damage to the valve plate 21.

[0113] In some embodiments, the flow regulating valve 1 includes an inlet pipe 190, a first outlet pipe 191, and a second outlet pipe 192. The inlet pipe 190 is connected to the inlet chamber 11, the first outlet pipe 191 is connected to one of the outlet chambers 12, and the second outlet pipe 192 is connected to the other outlet chamber 12. External water can enter the inlet chamber 11 through the inlet pipe 190, and the water in the inlet chamber 11 enters the corresponding outlet chamber 12 through the corresponding water passage 13. The water in the corresponding outlet chamber 12 can flow to a designated area through the first outlet pipe 191 or the second outlet pipe 192. By designing a flow regulating valve 1 in this way, the water volume in two areas can be regulated.

[0114] If it is not necessary for water to flow to a designated area along the first outlet pipe 191 and the second outlet pipe 192, the inlet of the inlet pipe 190 can be closed, or water can be stopped from being supplied to the inlet pipe 190. If water is allowed to enter the inlet chamber 11 and both water passages 13 are closed by the valve plate 21, a large pressure can easily be formed on one side of the valve plate 21, which can easily damage the valve plate 21.

[0115] In some embodiments, as shown in FIG1, a first valve plate 2101 and a second valve plate 2102 are included, as well as a first water passage 1301 and a second water passage 1302. The first valve plate 2101 is used to change the flow area of ​​the first water passage 1301, and the second valve plate 2102 is used to change the flow area of ​​the second water passage 1302. The starting position is when the first valve plate 2101 is completely closed and the second valve plate 2102 is completely open, that is, the first valve plate 2101 is in the first position and the second valve plate 2102 is in the fourth position. When the valve core 20 rotates, the first valve plate 2101 gradually opens the first water passage 1301 and the second valve plate 2102 gradually closes the second water passage 1302.

[0116] The central angle of the first arc-shaped hole along 131 is φ1, φ1 = 80°, and the central angle of the second arc-shaped hole along 132 is φ2, φ2 = 60°. The first straight hole along 133 and the second straight hole along 134 are symmetrically arranged about the center line of the second arc-shaped hole along 132. When the valve core 20 rotates 10°, the first valve plate 2101 rotates from the first position to the second position, and the second valve plate 2102 rotates from the fourth position to the third position. During this process, the flow area of ​​the first water passage hole 1301 gradually increases, and the relationship between the flow area of ​​the first water passage hole 1301 and the rotation angle of the first valve plate 2101 is a curve with an increasingly larger slope. The flow area of ​​the second water passage hole 1302 gradually decreases, and the relationship between the flow area of ​​the second water passage hole 1302 and the rotation angle of the second valve plate 2102 is a curve with an increasingly larger slope.

[0117] As the valve core 20 continues to rotate 60°, the first valve plate 2101 rotates from the second position to the third position, and the second valve plate 2102 rotates from the third position to the second position. During this process, the flow area of ​​the first water passage 1301 gradually increases, and the flow area of ​​the first water passage 1301 is linearly related to the rotation angle of the first valve plate 2101. The flow area of ​​the second water passage 1302 gradually decreases, and the flow area of ​​the second water passage 1302 is linearly related to the rotation angle of the second valve plate 2102.

[0118] As the valve core 20 continues to rotate 10°, the first valve plate 2101 rotates from the third position to the fourth position, and the second valve plate 2102 rotates from the second position to the first position. During this process, the flow area of ​​the first water passage 1301 gradually increases, and the relationship between the flow area of ​​the first water passage 1301 and the rotation angle of the first valve plate 2101 is a curve with the slope of the curve decreasing. The flow area of ​​the second water passage 1302 gradually decreases, and the relationship between the flow area of ​​the second water passage 1302 and the rotation angle of the second valve plate 2102 is a curve with the slope of the curve decreasing.

[0119] In some specific embodiments of this application, as shown in Figures 6-9, a limiting protrusion 14 is provided inside the valve housing 10, and a limiting groove 211 is provided on one side of each of the two valve plates 21. The limiting protrusion 14 is adapted to cooperate with the limiting groove 211 to limit the rotation range of the valve core 20, thereby controlling the valve plate 21 to reciprocate to open or close the corresponding water passage 13.

[0120] When the limiting groove 211 on one of the valve plates 21 is engaged with the limiting protrusion 14, the valve plate 21 fully opens the corresponding water passage hole 13, and the other valve plate 21 fully closes the corresponding water passage hole 13. At this time, the valve core 20 cannot continue to rotate in this direction, but can only rotate in the opposite direction, so that the valve plate 21 can gradually close the corresponding water passage hole 13, and the other valve plate 21 can gradually open the corresponding water passage hole 13.

[0121] In some embodiments, as shown in Figures 1 and 2, the two valve plates 21 are respectively the first valve plate 2101 and the second valve plate 2102, and the two water passage holes 13 are respectively the first water passage hole 1301 and the second water passage hole 1302. The limiting groove 211 on the first valve plate 2101 is in a stop-fitting engagement with the limiting protrusion 14. The first valve plate 2101 fully opens the first water passage hole 1301, and the second valve plate 2102 fully closes the second water passage hole 1302. At this time, due to the limiting groove 211 on the first valve plate 2101, the first valve plate 2101 fully opens the first water passage hole 1301, and the second valve plate 2102 fully closes the second water passage hole 1302. The groove 211 and the limiting protrusion 14 stop and cooperate, preventing the valve core 20 from rotating clockwise. When the valve core 20 rotates counterclockwise, the first valve plate 2101 gradually closes the first water passage 1301, and the second valve plate 2102 gradually opens the first water passage 1301. When the first valve plate 2101 completely closes the first water passage 1301 and the second valve plate 2102 completely opens the second water passage 1302, the limiting groove 211 on the second valve plate 2102 stops and cooperates with the limiting protrusion 14.

[0122] In some embodiments, the valve core 20 is controlled to rotate by a stepper motor. By setting a limiting protrusion 14, when the limiting groove 211 on the valve plate 21 is engaged with the limiting protrusion 14, the initial and final positions of the valve plate 21 can be determined, thereby controlling the angle of rotation of the valve plate 21 relative to the initial and final positions, so as to control the flow area of ​​the valve plate 21 opening the water passage 13.

[0123] In some embodiments, as shown in Figures 1, 2, and 6, the valve housing 10 includes a valve body 101 and a valve cover 102. The valve body 101 defines an outlet chamber 12, and the valve body 101 and the valve cover 102 together define an inlet chamber 11. The valve cover 102 is provided with a limiting protrusion 14. When assembling the flow regulating valve 1, the valve core 20 can be rotatably disposed in the valve body 101 first, and then the valve cover 102 can be placed on the valve body 101, so that the limiting protrusion 14 in the valve cover 102 is located between the two valve plates 21. This can prevent the limiting protrusion 14 from obstructing the installation of the valve plates 21.

[0124] In some embodiments of this application, as shown in FIG1, the flow regulating valve 1 further includes a first sealing element 31. The first sealing element 31 is disposed in the valve housing 10 and extends circumferentially along the water passage hole 13 for sealing and cooperating with the valve core 20, so that the valve core 20 can fit against the first sealing element 31 when rotating, and prevent water from leaking from the gap between the valve core 20 and the water passage hole 13 into the water outlet chamber 12.

[0125] In some specific embodiments of this application, as shown in Figures 2, 9 and 10, one of the valve housing 10 and the first seal 31 is provided with a mating protrusion 15, and the other is provided with a mating groove 315 that mates with the mating protrusion 15, so as to fix the first seal 31 on the valve housing 10 and prevent the valve core 20 from moving the first seal 31 when it rotates.

[0126] As shown in Figures 2, 9, and 10, in this embodiment, the valve housing 10 includes a valve body 101 and a valve cover 102. The valve body 101 defines a water outlet chamber 12. The valve body 101 is provided with a mating protrusion 15, which extends around the edge of the water hole 13. The first sealing member 31 is provided with a mating groove 315, and the mating protrusion 15 can extend into the mating groove 315 to fix the position of the first sealing member 31, so that the first sealing member 31 is located between the water outlet 13 and the valve core 20, thereby enabling the first sealing member 31 to seal with the valve core 20.

[0127] In some embodiments of this application, as shown in Figures 11 and 12, the valve core 20 includes a rotatable valve stem 22, a portion of which is disposed within the valve housing 10. The flow regulating valve 1 also includes a drive member 41, which is fixed to the valve housing 10 and connected to the end of the valve stem 22 extending out of the valve housing 10. The drive member 41 is used to drive the valve stem 22 to rotate, thereby driving the valve core 20 to rotate, so that the valve core 20 can rotate relative to the water passage 13 to change the flow area of ​​the water passage 13.

[0128] In some embodiments, the valve core 20 includes a valve stem 22 and a valve plate 21. The valve stem 22 cooperates with the drive member 41. When the valve stem 22 rotates, it can drive the valve plate 21 to rotate, so that the flow area of ​​the water passage 13 can be changed by the valve plate 21.

[0129] In some embodiments, as shown in FIG11, one end of the valve stem 22 has a mating tooth 23, which is mated with the drive member 41. The valve stem 22 is connected to the drive member 41 through the mating tooth 23. The drive member 41 outputs rotational force to the valve stem 22 through the mating tooth 23, thereby driving the valve plate 21 to rotate, so that the valve plate 21 can change the flow area of ​​the water passage 13.

[0130] In some specific embodiments of this application, as shown in Figures 2 and 8, the valve housing 10 has a positioning hole 16, and the other end of the valve stem 22 has a positioning protrusion 221 that is inserted into the positioning hole 16 to support the rotation of the valve stem 22, thereby reducing the probability of the valve stem 22 shaking in the valve housing 10 or reducing the amplitude of the valve stem 22 shaking in the valve housing 10.

[0131] In some specific embodiments of this application, as shown in FIG6, the valve housing 10 has a through hole 17, the valve stem 22 passes through the through hole 17, and a second sealing element 32 is provided between the hole wall of the through hole 17 and the valve stem 22 to seal the gap between the hole wall of the through hole 17 and the valve stem 22, so as to seal the housing and prevent water in the valve housing 10 from leaking out from the through hole 17.

[0132] In some embodiments, as shown in Figures 8 and 13, a limiting boss 18 is provided on the wall of the through hole 17 near the drive member 41, and a fixing member 42 is provided at the end of the through hole 17 away from the drive member 41. The fixing member 42 is sleeved on the valve stem 22 and the second sealing member 32 is limited between the fixing member 42 and the limiting boss 18 to limit the position of the second sealing member 32, thereby enabling the second sealing member 32 to seal the gap between the hole wall and the valve stem 22 and prevent water in the valve body 10 from leaking from the gap between the hole wall and the valve stem 22.

[0133] In some examples, as shown in Figures 8 and 13, the fixing member 42 is fixed to the valve cover 102, the valve cover 102 defines a through hole 17 in the middle, and the inner side of the fixing member 42 defines a step portion 423. The step portion 423 is abutted against the lower end of the second seal 32 (it should be understood that the above directional limitation is only for the convenience of describing the drawings and does not limit the actual setting position and direction of the flow regulating valve 1). The upper end of the second seal 32 abuts against the limiting boss 18 to limit the position of the second seal 32 and prevent the second seal 32 from moving in the opposite direction. There is a gap between the fixing member 42 and the valve stem 22 to prevent the fixing member 42 from affecting the rotation of the valve stem 22.

[0134] For example, as shown in Figures 8 and 13, the fastener 42 has a plurality of protrusions 422 arranged at intervals along its axial direction, and the peripheral wall of the through hole 17 facing the end of the fastener 42 is provided with a plurality of grooves. The protrusions 422 cooperate with the grooves to fix the fastener 42 on the valve cover 102.

[0135] In some examples, as shown in Figure 14, the fixing member 42 is located away from the second seal 32 and cooperates with the valve core 20 so that the fixing member 42 exerts a force on the valve core 20 toward the positioning hole 16, so that the positioning protrusion 221 of the valve core 20 is inserted into the positioning hole 16, thus preventing the positioning protrusion 221 of the valve core 20 from falling out of the positioning hole 16.

[0136] The fixing member 42 has an oil groove 421 at the position where it mates with the valve core 20. The oil groove 421 is used to store lubricating oil. When the valve stem 22 rotates, friction will be generated between the valve stem 22 and the side of the fixing member 42 away from the second seal 32. The lubricating oil can be used to lubricate the fixing member 42 and the valve core 20 to reduce the friction between them, which helps to reduce noise and improve service life.

[0137] The following describes a heat exchange system 5 according to an embodiment of this application. The heat exchange system 5 according to an embodiment of this application includes a heat exchanger 51, a heat exchange component, a power component 52, and a flow regulating valve 1 according to the above embodiment of this application.

[0138] The heat exchanger has a heat exchange chamber. The water inlet chamber 11 is connected to the heat exchanger 51. The heat exchange chamber is connected to the water outlet chamber 12 and the heat exchanger 51. The power unit 52 is used to drive the heat exchange medium to flow between the heat exchanger 51 and the heat exchanger. Driven by the power unit 52, the water after heat exchange in the heat exchanger 51 flows to the heat exchange chamber through the flow regulating valve 1. The water in the heat exchange chamber flows to the heat exchanger 51 to realize the circulation of water flow. Then, the temperature of the heat exchanger is regulated by the water after heat exchange in the heat exchanger 51.

[0139] According to the heat exchange system 5 of the present application embodiment, by utilizing the flow regulating valve 1 of the above embodiment of the present application, the outflow rate of the flow regulating valve 1 can be controlled to increase or decrease uniformly, which facilitates precise control of the flow rate to the heat exchange component, so that the heat exchange component can be raised or lowered to a specified temperature.

[0140] The vehicle 6 according to an embodiment of the present application is described below. As shown in FIG16, the vehicle 6 according to an embodiment of the present application includes a heat exchange system 5 according to the above embodiment of the present application.

[0141] The heat exchange component to be exchanged includes the heat exchange component 53 of the battery pack. The water after heat exchange through the heat exchanger 51 can be used to cool or heat the battery pack so that the battery pack is at an appropriate temperature, which facilitates the battery pack to achieve the best working efficiency.

[0142] The heat exchange component also includes a heater core 54. After the water is heated by the heat exchanger 51, it flows to the heater core 54, which can blow the heat or cool air from the water to the driving and riding area of ​​the vehicle 6 to provide a comfortable temperature for the occupants of the vehicle 6.

[0143] In some embodiments, as shown in FIG15, the flow regulating valve 1 includes an inlet pipe 190, a first outlet pipe 191, and a second outlet pipe 192. The valve housing 10 defines two outlet chambers 12, namely the first outlet chamber 12 and the second outlet chamber 12. The inlet pipe 190 is connected to the inlet chamber 11. The first outlet pipe 191 is connected to the first outlet chamber 12 and the heat exchange chamber of the heat exchange component 53 of the battery pack. The second outlet pipe 192 is connected to the second outlet chamber 12 and the heat exchange chamber of the heater core 54.

[0144] After heat exchange by heat exchanger 51, the liquid can enter the inlet chamber 11 through inlet pipe 190. The liquid in inlet chamber 11 enters the first outlet chamber 12 through first water passage 1301. The liquid in the first outlet chamber 12 flows to the heat exchange chamber of the heat exchange component 53 of the battery pack through first outlet pipe 191. The liquid in the heat exchange chamber of the heat exchange component 53 of the battery pack flows to heat exchanger 51, so as to realize the circulation of liquid in heat exchanger 51-flow regulating valve 1-heat exchange component 53 of the battery pack-heat exchanger 51, thereby realizing the temperature control of the heat exchange component 53 of the battery pack.

[0145] The liquid in the inlet chamber 11 enters the second outlet chamber 12 through the second water passage 1302. The liquid in the second outlet chamber 12 flows to the heat exchange chamber of the heater core 54 through the second outlet pipe 192. The liquid in the heat exchange chamber of the heater core 54 flows to the heat exchanger 51, so as to realize the circulation of liquid in the heat exchanger 51-flow regulating valve 1-heater core 54-heat exchanger 51, thereby realizing the temperature control of the driving area.

[0146] The valve core 20 includes two valve plates 21, namely a first valve plate 2101 and a second valve plate 2102. When the first valve plate 2101 gradually opens the first water passage 1301, the second valve plate 2102 gradually closes the second water passage 1302 to simultaneously control the flow rate to the heat exchange component 53 and the warm air core 54 of the battery pack.

[0147] In some embodiments, the first arc-shaped hole edge 131 is located outside the second arc-shaped hole edge 132, and the central angle of the first arc-shaped hole edge 131 is greater than the central angle of the second arc-shaped hole edge 132. The water passage hole 13 also has a first straight hole edge 133 and a second straight hole edge 134 arranged opposite to each other. The two ends of the first straight hole edge 133 are respectively connected to one end of the first arc-shaped hole edge 131 and one end of the second arc-shaped hole edge 132. The two ends of the second straight hole edge 134 are respectively connected to the other end of the first arc-shaped hole edge 131 and the other end of the second arc-shaped hole edge 132. The first straight hole edge 133 is radially inclined relative to the second arc-shaped hole edge 132 at one end, and the second straight hole edge 134 is radially inclined relative to the second arc-shaped hole edge 132 at the other end. The first straight hole edge 133 and the second straight hole edge 134 are symmetrically arranged about the center line of the second arc-shaped hole edge 132.

[0148] The starting position is when the first valve plate 2101 completely closes the first water passage 1301 and the second valve plate 2102 completely opens the second water passage 1302. That is, the first valve plate 2101 is in the first position and the second valve plate 2102 is in the fourth position. When the valve core 20 rotates, the first valve plate 2101 gradually opens the first water passage 1301 and the second valve plate 2102 gradually closes the second water passage 1302.

[0149] In some examples, the central angle of the first arc-shaped hole along 131 is φ1, φ1 = 80°, and the central angle of the second arc-shaped hole along 132 is φ2, φ2 = 60°. When the valve core 20 rotates 10°, the first valve plate 2101 rotates from the first position to the second position, and the second valve plate 2102 rotates from the fourth position to the third position. During this process, the flow area of ​​the first water passage hole 1301 gradually increases, and the relationship between the flow area of ​​the first water passage hole 1301 and the rotation angle of the first valve plate 2101 is a curve with an increasingly larger slope. The flow area of ​​the second water passage hole 1302 gradually decreases, and the relationship between the flow area of ​​the second water passage hole 1302 and the rotation angle of the second valve plate 2102 is a curve with an increasingly larger slope.

[0150] As the valve core 20 continues to rotate 60°, the first valve plate 2101 rotates from the second position to the third position, and the second valve plate 2102 rotates from the third position to the second position. During this process, the flow area of ​​the first water passage 1301 gradually increases, and the flow area of ​​the first water passage 1301 is linearly related to the rotation angle of the first valve plate 2101. The flow area of ​​the second water passage 1302 gradually decreases, and the flow area of ​​the second water passage 1302 is linearly related to the rotation angle of the second valve plate 2102.

[0151] As the valve core 20 continues to rotate 10°, the first valve plate 2101 rotates from the third position to the fourth position, and the second valve plate 2102 rotates from the second position to the first position. During this process, the flow area of ​​the first water passage 1301 gradually increases, and the relationship between the flow area of ​​the first water passage 1301 and the rotation angle of the first valve plate 2101 is a curve with the slope of the curve decreasing. The flow area of ​​the second water passage 1302 gradually decreases, and the relationship between the flow area of ​​the second water passage 1302 and the rotation angle of the second valve plate 2102 is a curve with the slope of the curve decreasing.

[0152] For example, the flow distribution of flow control valve 1 mainly falls into the following five categories.

[0153] (1) When only the heat exchange component 53 of the battery pack needs to be heated, the first valve plate 2101 is in the fourth position, the first valve plate 2101 fully opens the first water passage 13, the second valve plate 2102 is in the first position, the second valve plate 2102 fully closes the second water passage 1302. At this time, the liquid in the water inlet chamber 11 enters the first water outlet chamber 12 through the first water passage 13. Under the action of the power component 52, the liquid in the first water outlet chamber 12 flows along the first water outlet pipe 191 to the heat exchange chamber of the heat exchange component 53 of the battery pack to supply heat to the heat exchange component 53 of the battery pack.

[0154] (2) When hot water needs to be introduced into the heater core 54 under the premise of heating only the heat exchange component 53 of the battery pack, the second valve plate 2102 gradually opens the second water passage 1302, that is, the second valve plate 2102 rotates from the first position to the second position. Since the hot water flowing out of the heat exchanger 51 is overheated at this time, if too much flow is directly distributed to the heater core 54 at the beginning, it will cause the heat at the heater core 54 to be too large, causing the temperature felt by the driver and passengers to be too large in an instant. This will cause the temperature difference felt by the driver and passengers to be too large in an instant, affecting the comfort. Therefore, this application makes the relationship between the flow area of ​​the second water passage 1302 and the rotation angle of the second valve plate 2102 when the second valve plate 2102 rotates from the first position to the second position to be a curve and the slope of the curve is getting larger and larger. That is to say, at the beginning, the increase in the flow area of ​​the second water passage 1302 is small, so as to avoid too much hot water flowing into the heater core 54 suddenly.

[0155] (3) When it is necessary to supply heat to both the heat exchange component 53 and the warm air core 54 of the battery pack, the first valve plate 2101 and the second valve plate 2102 can be positioned between the second and third positions. At this time, the flow area of ​​the first water passage 1301 is linearly related to the rotation angle of the first valve plate 2101, and the flow area of ​​the second water passage 1302 is linearly related to the rotation angle of the second valve plate 2102. When the valve core 20 rotates, the flow area of ​​the first water passage 1301 and the second water passage 1302 can be changed uniformly to precisely control the flow rate to the heat exchange component 53 and the warm air core 54 of the battery pack.

[0156] (4) When only the heater core 54 needs to be heated, the second valve plate 2102 is in the fourth position, the second valve plate 2102 is fully open to the second water passage 1302, the first valve plate 2101 is in the first position, the first valve plate 2101 is fully closed to the second water passage 1302. At this time, the liquid in the inlet chamber 11 enters the second outlet chamber 12 through the second water passage 1302. Under the action of the power component 52, the liquid in the second outlet chamber 12 flows along the second outlet pipe 192 to the heater core 54 to heat the heater core 54.

[0157] (5) When hot water needs to be introduced into the heat exchange component 53 of the battery pack, under the premise of only supplying heat to the heating core 54, the first valve plate 2101 gradually opens the first water passage 13, that is, the first valve plate 2101 rotates from the first position to the second position. Since the hot water flowing out of the heat exchanger 51 is overheated at this time, if too much flow is directly allocated to the heat exchange component 53 of the battery pack at the beginning, the temperature of the heat exchange component 53 of the battery pack will be too high. This requires waiting for the heat exchange component 53 of the battery pack to cool down, and the waiting time is long. Therefore, this application makes the relationship between the flow area of ​​the first water passage 1301 and the rotation angle of the first valve plate 2101 when the first valve plate 2101 rotates from the first position to the second position be a curve and the slope of the curve is getting bigger and bigger. That is to say, at the beginning, the increase in the flow area of ​​the first water passage 1301 is small to avoid too much hot water flowing to the heat exchange component 53 of the battery pack suddenly.

[0158] It needs to be explained here that the heating of the heater core 54 and the heat exchange component 53 of the battery pack is mainly controlled by the flow rate at the heat exchanger 51 and the first and second water outlet pipes 191 and 192. When heat needs to be supplied to both the heat exchange component 53 and the heater core 54 of the battery pack, the flow rates at the first and second water outlet pipes 191 and 192 can be made the same, that is, the flow areas of the first water passage 1301 and the second water passage 1302 can be the same. Of course, when the heat exchange component 53 of the battery pack requires more heat, the flow area of ​​the first water passage 1301 can be made larger and the flow area of ​​the second water passage 1302 smaller; conversely, when the heat exchange component 53 requires more heat, the flow area of ​​the first water passage 1301 can be made smaller and the flow area of ​​the second water passage 1302 larger.

[0159] In addition, heat exchanger 51 can also be used to cool liquids to provide cooling for the heating core 54 and the heat exchange component 53 of the battery pack. In this case, the flow control valve 1 controls the flow in the same way as described above, and will not be repeated here.

[0160] According to the vehicle 6 of the present application embodiment, by utilizing the heat exchange system 5 of the above embodiment of the present application, the water flow rate of the flow regulating valve 1 can be controlled to increase or decrease uniformly, which facilitates precise control of the flow rate to the heat exchange component, so that the heat exchange component can be raised or lowered to a specified temperature.

[0161] Other configurations and operations of the vehicle 6 according to the embodiments of this application are known to those skilled in the art and will not be described in detail here.

[0162] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used 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. Furthermore, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more. In the description of this application, "above" or "below" a second feature may include direct contact between the first and second features, or it may include contact between the first and second features not being in direct contact but through another feature between them.

[0163] In the description of this application, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0164] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0165] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0166] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A flow regulating valve (1), wherein, The utility model relates to a valve, comprising: a valve housing (10) defining a water inlet cavity (11) and a water outlet cavity (12) in communication through a water passage (13); a valve core (20) rotatably arranged in the valve housing (10) for changing the flow area of the water passage (13); wherein the water passage (13) has oppositely arranged first and second arc-shaped hole edges (131, 132), and the centers of the circles on which the first and second arc-shaped hole edges (131, 132) are located are located on the rotation axis of the valve core (20).

2. The flow regulating valve (1) according to claim 1, wherein The first arc-shaped hole edge (131) is located outside the second arc-shaped hole edge (132), and the central angle of the first arc-shaped hole edge (131) is greater than that of the second arc-shaped hole edge (132).

3. The flow regulating valve (1) according to claim 1 or 2, wherein The water passage (13) further has oppositely arranged first and second straight hole edges (133, 134), and the two ends of the first straight hole edge (133) are connected to one end of the first arc-shaped hole edge (131) and one end of the second arc-shaped hole edge (132) respectively, and the two ends of the second straight hole edge (134) are connected to the other end of the first arc-shaped hole edge (131) and the other end of the second arc-shaped hole edge (132) respectively. The valve core (20) comprises a valve piece (21) for changing the flow area of the water passage (13), and the valve piece (21) is in a fan-shaped structure and the center of the fan-shaped structure is located on the rotation axis of the valve core (20).

4. The flow regulating valve (1) according to claim 3, wherein The first straight hole edge (133) and one end of the second arc-shaped hole edge (132) have a first intersection point, the first straight hole edge (133) is radially inclinedly arranged relative to the second arc-shaped hole edge (132) at the first intersection point, and the water passage (13) comprises a first hole portion (13a) and a second hole portion (13b) arranged in the extension direction of the first arc-shaped hole edge (131). When the valve piece (21) is rotated to a first position, one side edge of the valve piece (21) coincides with one end of the first arc-shaped hole edge (131), and the valve piece (21) closes the first hole portion (13a) and the second hole portion (13b). When the valve piece (21) is rotated to a second position, one side edge of the valve piece (21) coincides with one end of the second arc-shaped hole edge (132), and the valve piece (21) opens the first hole portion (13a) and closes the second hole portion (13b). When the valve piece (21) is rotated to a third position, one side edge of the valve piece (21) coincides with the other end of the second arc-shaped hole edge (132), and the valve piece (21) opens the first hole portion (13a) and the second hole portion (13b).

5. The flow regulating valve (1) according to claim 4, wherein The second straight hole side (134) has a second intersection with the other end of the second arc-shaped hole side (132), the second straight hole side (134) is radially inclined to the second arc-shaped hole side (132) at the second intersection, and the first straight hole side (133) and the second straight hole side (134) are symmetrically arranged about the center line of the second arc-shaped hole side (132), the water passing hole (13) further comprises a third hole part (13c) located on the side of the second hole part (13b) away from the first hole part (13a); When the valve piece (21) rotates to the fourth position, one side edge of the valve piece (21) coincides with the other end of the first arc-shaped hole side (131), and the valve piece (21) opens the first hole part (13a), the second hole part (13b) and the third hole part (13c).

6. The flow regulating valve (1) according to any one of claims 3-5, wherein, The water outlet cavity (12), the water passing hole (13) and the valve piece (21) respectively comprise at least two, two water outlet cavities (12) and the water inlet cavity (11) are respectively communicated through two water passing holes (13) one by one. In the state that one of the valve pieces (21) completely opens one of the water passing holes (13), the other valve piece (21) completely closes the other water passing hole (13).

7. The flow regulating valve (1) according to claim 6, wherein Two valve pieces (21) do not close two water passing holes (13) at the same time.

8. The flow regulating valve (1) according to claim 6 or 7, wherein The valve shell (10) is provided with a limiting protrusion (14), one side of two valve pieces (21) is respectively provided with a limiting groove (211), and the limiting protrusion (14) is matched with the limiting groove (211) to limit the rotation range of the valve core (20).

9. The flow regulating valve (1) according to any one of claims 1-8, wherein, Further comprising a first sealing member (31) arranged in the valve shell (10) and extending along the circumference of the water passing hole (13), used for sealing cooperation with the valve core (20).

10. The flow regulating valve (1) according to claim 9, wherein One of the valve shell (10) and the first sealing member (31) is provided with a matching protrusion (15), and the other is provided with a matching groove (315) matched with the matching protrusion (15).

11. The flow regulating valve (1) according to any one of claims 1-10, wherein, The valve core (20) comprises a rotatable valve rod (22), and a part of the valve rod (22) is arranged in the valve shell (10); The flow regulating valve (1) further comprises a driving member (41) fixed to the valve shell (10) and connected with one end of the valve rod (22) protruding out of the valve shell (10), used for driving the valve rod (22) to rotate.

12. The flow regulating valve (1) according to claim 11, wherein The valve shell (10) has a positioning hole (16), and the other end of the valve rod (22) has a positioning protrusion (221) matched with the positioning hole (16).

13. The flow regulating valve (1) according to claim 11 or 12, wherein The valve shell (10) has a through hole (17), the valve rod (22) is arranged in the through hole (17), and a second sealing member (32) is arranged between the hole wall of the through hole (17) and the valve rod (22) to seal the gap between the hole wall of the through hole (17) and the valve rod (22).

14. The flow regulating valve (1) according to claim 13, wherein The hole wall of the perforation (17) is provided with a limiting boss (18) near the position of the driving member (41), and the perforation (17) is provided with a fixing member (42) at the end away from the driving member (41), the fixing member (42) is sleeved on the valve rod (22), and the second sealing member (32) is limited between the fixing member (42) and the limiting boss (18).

15. The flow regulating valve (1) according to claim 14, wherein The side of the fixing member (42) away from the second sealing member (32) and matched with the valve core (20) is provided with an oil groove (421) for storing lubricating oil.

16. A heat exchange system (5), wherein Further comprising: a heat exchanger (51); a to-be-heated member having a heat exchange cavity; The flow regulating valve (1) according to any one of claims 1-15, the water inlet cavity (11) communicates with the heat exchanger (51), and the heat exchange cavity communicates the water outlet cavity (12) with the heat exchanger (51); a power component (52) for driving the heat exchange medium to flow between the heat exchanger (51) and the to-be-heated member.

17. A vehicle (6), wherein The heat exchange system (5) according to claim 16, the to-be-heated member comprises a heat exchange component (53) of a battery pack and / or a heater core (54).

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