Three-way ball valve, electric automobile, opening degree control method, electronic equipment and storage medium
Patent Information
- Application Number
- CN202380100083.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-08-03
- Publication Date
- 2026-01-27
AI Technical Summary
The existing ball valve structure cannot effectively balance the difference in flow demand during heating distribution on both sides of electric vehicle air conditioners, resulting in large fluctuations in the air outlet temperature of the passenger compartment.
A three-way ball valve is designed, the ball valve core is equipped with a first flow channel and a second flow channel with varying cross-sectional areas. The first medium outlet is connected to the first heating unit with a larger flow demand. The second medium outlet is connected to the flow demand. The smaller second heating unit is in communication and controls the opening of the three-way ball valve to balance the flow rate on both sides by adjusting the rotation of the ball valve core.
By adjusting the opening of the three-way ball valve, uneven distribution of flow on both sides is achieved, effectively balancing the difference in flow demand for heating distribution on both sides of the electric vehicle air conditioner, and reducing fluctuations in the air outlet temperature of the passenger compartment.
Smart Images
Figure CN121420148A_ABST
Abstract
Description
Three-way ball valve, electric vehicle, opening control method, electronic device and storage medium Technical Field
[0001] The present disclosure relates to the technical field of ball valves, and in particular to a three-way ball valve, an electric vehicle, an opening control method, an electronic device, and a storage medium. Background Art
[0002] For example, electric vehicle air conditioning uses a water-cooled loop to heat both the battery and the passenger compartment, creating a heat distribution problem. For example, if the battery needs to be heated during passenger compartment heating, the air temperature outflow from the passenger compartment will fluctuate significantly. Existing ball valve structures are unable to balance this large difference in flow demand between the two sides.
[0003] Summary of the Invention
[0004] In view of this, the embodiments of the present disclosure provide a three-way ball valve, an opening control method, an electronic device, and a storage medium, which can balance the problem of large differences in flow demands on both sides.
[0005] According to a first aspect of an embodiment of the present disclosure, a three-way ball valve is provided, comprising:
[0006] The valve body is provided with a medium inlet, a first medium outlet, and a second medium outlet, wherein the medium inlet is used to introduce a circulating medium, the first medium outlet is used to connect to a first heating unit, and the second medium outlet is used to connect to a second heating unit; and
[0007] A spherical valve core is rotatably arranged in the valve body. The spherical valve core is provided with a first flow channel and a second flow channel with different cross-sectional areas. The cross-sectional area of the first flow channel is larger than the cross-sectional area of the second flow channel. The first flow channel and the second flow channel are distributed around the rotating axis of the spherical valve core. The spherical valve core is provided with an initial position, which is the position when the opening of the three-way ball valve is 50%. In the initial position, the medium inlet is sealed and connected with the first medium outlet via the first flow channel, and is also sealed and connected with the second medium outlet via the second flow channel. The spherical valve core can be controlled to rotate clockwise or counterclockwise from the initial position to adjust the opening of the three-way ball valve.
[0008] Optionally, the first flow channel and the second flow channel are configured so that the ratio of the cross-sectional area of the first flow channel to the cross-sectional area of the second flow channel is equal to the ratio of the maximum heat load of the first heating unit to the maximum heat load of the second heating unit, and is also equal to the ratio of the connecting area between the medium access port and the first flow channel to the connecting area between the medium access port and the second flow channel when the opening of the three-way ball valve is 50%.
[0009] Optionally, the size of the first flow channel in the direction of the rotation axis of the spherical valve core is larger than the size of the second flow channel in this direction, and in the direction of the rotation axis, at least one end of the first flow channel is closer to the end of the spherical valve core than the second flow channel.
[0010] Optionally, the first flow channel is symmetrical about a plane perpendicular to the rotation axis, and the plane is the plane where the diameter of the spherical valve core lies.
[0011] Optionally, the second flow channel is symmetrical about the plane.
[0012] Optionally, the first flow channel and the second flow channel are arranged within a 180° range in the circumferential direction of the spherical valve core.
[0013] Optionally, the first flow channel is arranged within a range of 45° to 90° in the circumferential direction of the spherical valve core; and / or
[0014] The second flow channel is arranged within a range of 45° to 90° in the circumferential direction of the spherical valve core.
[0015] According to a second aspect of the embodiments of the present disclosure, an electric vehicle is provided, comprising:
[0016] A three-way ball valve as described in any one of the above;
[0017] A medium input assembly connected to the medium inlet of the three-way ball valve;
[0018] a first heating unit and a first component, wherein the first heating unit is connected to the first medium outlet of the three-way ball valve and the first component, and is used to supply heat to the first component; and
[0019] The second heating unit is connected to the second medium outlet of the three-way ball valve and the second component, and is used to supply heat to the second component. The heat load of the first heating unit is greater than the heat load of the second heating unit.
[0020] According to a third aspect of an embodiment of the present disclosure, a method for controlling the opening of a three-way ball valve is provided, which is applied to any of the three-way ball valves described above, and the method includes:
[0021] Obtaining a ratio of a current heat load of the first heating unit to a current heat load of the second heating unit, wherein the ratio is defined as a first ratio;
[0022] Determining the magnitude of the first ratio and the second ratio, wherein the second ratio is defined as the ratio of the cross-sectional area of the first flow channel to the cross-sectional area of the second flow channel, and the cross-sectional area of the first flow channel is greater than the cross-sectional area of the second flow channel;
[0023] The opening of the three-way ball valve is controlled according to the judgment result, wherein the opening of the three-way ball valve is 50% which is the initial position of the spherical valve core.
[0024] Optionally, the second ratio is equivalent to the ratio of the maximum heat load of the first heating unit to the maximum heat load of the second heating unit, and is also equal to the ratio of the connecting area between the medium access port and the first flow channel to the connecting area between the medium access port and the second flow channel when the opening of the three-way ball valve is 50%.
[0025] Optionally, if the first ratio is greater than the second ratio, the opening of the three-way ball valve is controlled to be 50%+(S1-S) / S*50%, so that the flow rate in the first flow channel is greater than the flow rate in the second flow channel;
[0026] If the first ratio is smaller than the second ratio, the opening of the three-way ball valve is controlled to be 50%-(S-S1) / S*50%, so that the flow rate in the first flow channel is smaller than the flow rate in the second flow channel;
[0027] If the first ratio is equal to the second ratio, the opening of the three-way ball valve is controlled to be 50%,
[0028] Wherein, S1 is the ratio of the current heat load of the first heating unit to the current heat load of the second heating unit, and S is the ratio of the cross-sectional area of the first flow channel to the cross-sectional area of the second flow channel.
[0029] Optionally, the current heat load of the first heating unit is R1*Q1*|T1-Ts|, and the current heat load of the second heating unit is R2*Q2*|T2-Td|,
[0030] Wherein: R1 is the specific heat capacity of the medium in the first heating unit, Q1 is the circulation flow rate of the medium in the first heating unit, T1 is the current temperature of the medium in the first heating unit, and Ts is the target temperature of the medium in the first heating unit; R2 is the specific heat capacity of the medium in the second heating unit, Q2 is the circulation flow rate of the medium in the second heating unit, T2 is the current temperature of the medium in the second heating unit, and Td is the target temperature of the medium in the second heating unit.
[0031] According to a fourth aspect of an embodiment of the present disclosure, an electronic device is proposed, comprising a memory and a processor, wherein the memory is used to store computer instructions that can be executed on the processor, and the processor is used to implement any of the above-mentioned opening adjustment methods when executing the computer instructions.
[0032] According to a fifth aspect of an embodiment of the present disclosure, a computer-readable storage medium is provided, on which a computer program is stored. When the program is executed by a processor, any of the above-mentioned methods for controlling the opening degree is implemented.
[0033] According to an embodiment of the present disclosure, the present disclosure provides a three-way ball valve, an electric vehicle, an opening control method, an electronic device, and a storage medium. The spherical valve core is provided with a first flow channel and a second flow channel of unequal cross-sectional areas. The first medium outlet is connected to a first heating unit with a larger flow demand, and the second medium outlet is connected to a second heating unit with a smaller flow demand. This allows the circulating medium flowing into the first heating unit to flow more freely, and the first heating unit to generate more heat, thereby balancing the problem of large differences in flow demands on both sides. Furthermore, the position of the spherical valve core when the opening of the three-way ball valve is 50% serves as the initial position. Thus, the opening of the three-way ball valve can be adjusted by rotating the spherical valve core clockwise or counterclockwise to achieve uneven distribution of flow on both sides. BRIEF DESCRIPTION OF THE DRAWINGS
[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.
[0035] FIG1 is a schematic diagram showing the opening degree of a three-way ball valve according to an embodiment of the present disclosure, wherein the opening degree of the three-way ball valve is 50%.
[0036] FIG. 2 is a schematic diagram of a spherical valve core according to an embodiment of the present disclosure.
[0037] FIG3 is a schematic diagram showing a three-way ball valve with an opening degree of 0% according to an embodiment of the present disclosure.
[0038] FIG4 is a schematic diagram showing a three-way ball valve with an opening degree of 100% according to an embodiment of the present disclosure.
[0039] FIG5 is a flow chart showing a method for controlling the opening of a three-way ball valve according to an embodiment of the present disclosure. DETAILED DESCRIPTION
[0040] The following will be combined with the accompanying drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the embodiments described are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present disclosure.
[0041] The terms used in the embodiments of the present disclosure are for the purpose of describing specific embodiments only and are not intended to limit the embodiments of the present disclosure. The singular forms "a," "an," and "the" used in the embodiments of the present disclosure and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and includes any or all possible combinations of one or more associated listed items.
[0042] It should be understood that although the terms first, second, third, etc. may be used to describe various information in the embodiments of the present disclosure, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of the embodiments of the present disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".
[0043] For the purpose of brevity and ease of understanding, the terms "greater than," "less than," "higher than," and "lower than" are used herein to describe size relationships. However, those skilled in the art will understand that the term "greater than" also encompasses the meaning of "greater than or equal to," and "less than" also encompasses the meaning of "less than or equal to," and the term "higher than" also encompasses the meaning of "higher than or equal to," and "lower than" also encompasses the meaning of "lower than or equal to."
[0044] Please refer to Figures 1 and 2. Figure 1 is a schematic diagram of a three-way ball valve 100 according to an exemplary embodiment of the present disclosure. Figure 2 is a schematic diagram of a spherical valve core 20 according to an exemplary embodiment of the present disclosure.
[0045] The present disclosure provides a three-way ball valve 100, comprising a valve body 10 and a spherical valve core 20 rotatably disposed within the valve body 10, with the spherical valve core 20 having a rotation axis O. A transmission rod may be disposed at the top of the spherical valve core 20, and a motor may drive the transmission rod to rotate via a gear mechanism, thereby driving the spherical valve core 20 to rotate. The gear mechanism serves as a speed reduction mechanism.
[0046] The valve body 10 is provided with a medium inlet 11, a first medium outlet 12, and a second medium outlet 13. The medium inlet 11 is used to receive a circulating medium, such as a liquid medium. The first medium outlet 12 is connected to a first heating unit, which is used to heat a first component. The first heating unit includes, but is not limited to, a heat exchange component. The second medium outlet 13 is connected to a second heating unit, which is used to heat a second component. The second heating unit includes, but is not limited to, an air conditioner. In one embodiment, one of the first and second components is a battery, and the other is a passenger compartment, but this is not limited to this.
[0047] The spherical valve core 20 is provided with a first flow channel 21 and a second flow channel 22 of different cross-sectional areas, wherein the cross-sectional area of the first flow channel 21 is larger than the cross-sectional area of the second flow channel 22, and the first flow channel 21 and the second flow channel 22 are distributed around the rotation axis O of the spherical valve core 20. The spherical valve core 20 is sealed with the valve body 10, so that the first flow channel 21 and the second flow channel 22 respectively form sealed flow channels and are separated from each other. For example, the spherical valve core 20 and the valve body 10 can be sealed with a sealing ring. The cross-sectional area referred to here refers to the area of the first flow channel 21 and the second flow channel 22 in the cross section after the first flow channel 21 or the second flow channel 22 is cut off by the vertical plane where the rotation axis O shown in Figure 2 is located.
[0048] The spherical valve core 20 has an initial position, which is the position when the three-way ball valve 100 is 50% open. In this initial position, the medium inlet 11 is sealedly connected to the first medium outlet 12 via the first flow channel 21, and is also sealedly connected to the second medium outlet 13 via the second flow channel 22. At this time, the medium in the medium inlet 11 can flow into the first flow channel 21 and the second flow channel 22. The spherical valve core 20 is controllably rotatable relative to the valve body 10 about the rotation axis O from the initial position, thereby adjusting the opening of the three-way ball valve 100. The rotation direction of the spherical valve core 20 may be clockwise or counterclockwise. The spherical valve core 20 can be controlled by the ratio of the heat load of the first heating unit to the heat load of the second heating unit, but is not limited to this.
[0049] As can be seen from the above description, the spherical valve core 20 is provided with a first flow channel 21 and a second flow channel 22 of unequal cross-sectional areas. The cross-sectional area of the first flow channel 21 is larger than that of the second flow channel 22. This allows the first medium outlet 12 to communicate with the first heating unit with a larger flow demand, while the second medium outlet 13 communicates with the second heating unit with a smaller flow demand. This increases the flow rate of the circulating medium entering the first heating unit, resulting in more heat generated by the first heating unit, thereby balancing the large difference in flow demand between the two sides. Furthermore, the position of the spherical valve core 20 when the three-way ball valve 100 is 50% open serves as the initial position. This allows the spherical valve core 20 to be rotated clockwise or counterclockwise to adjust the opening of the three-way ball valve, achieving uneven flow distribution between the two sides. One of the first flow channel 21 and the second flow channel 22 can be closed, while the other can be fully open.
[0050] In one embodiment, the first flow channel 21 and the second flow channel 22 are configured such that the ratio of the cross-sectional area of the first flow channel 21 to the cross-sectional area of the second flow channel 22 is equal to the ratio of the maximum heat load of the first heating unit to the maximum heat load of the second heating unit, and is also equal to the ratio of the communication area between the medium inlet 11 and the first flow channel 21 to the communication area between the medium inlet 11 and the second flow channel 22 when the three-way ball valve is 50% open. With this configuration, the initial position of the ball valve core 20 can be determined based on the ratio of the maximum heat load of the first heating unit to the maximum heat load of the second heating unit. When the ratio of the current heat load of the first heating unit to the current heat load of the second heating unit changes under different operating conditions, the ball valve core 20 is controlled to rotate to adjust the opening of the three-way ball valve 100, so that the flow rate can be controlled through the three-way ball valve 100 to meet the flow distribution requirements on both sides.
[0051] In one embodiment, the dimension Z1 of the first flow channel 21 in the direction of the rotation axis O of the spherical valve core 20 is greater than the dimension Z2 of the second flow channel 22 in this direction. In the direction of the rotation axis O, at least one end of the first flow channel 21 is closer to the end of the spherical valve core 20 than the second flow channel 22. For example, one end of the top 210 of the first flow channel 21 in the direction of the rotation axis O is closer to the top 201 of the spherical valve core 20 than the top end of the second flow channel 22. For another example, one end of the bottom 211 of the first flow channel 21 in the direction of the rotation axis O is closer to the bottom 202 of the spherical valve core 20 than the bottom end of the second flow channel 22. This configuration fully utilizes the space of the spherical valve core 20 in the direction of the rotation axis O, making the dimension Z1 of the first flow channel 21 in the direction of the rotation axis O greater than the dimension Z2 of the second flow channel 22 in this direction. This increases the cross-sectional area of the first flow channel 21, thereby meeting the flow distribution requirements between the first and second flow channels 21 and 22.
[0052] In the embodiment shown in FIG2 , the top end of the first flow channel 21 in the direction of the rotation axis O is closer to the top of the spherical valve core 20 than the top end of the second flow channel 22, and the bottom end of the first flow channel 21 in the direction of the rotation axis O is closer to the bottom of the spherical valve core 20 than the top end of the second flow channel 22. As a result, both ends of the first flow channel 21 in the direction of the rotation axis O are close to the ends of the spherical valve core 20 at their respective ends, thereby maximizing or enlarging the cross-sectional area of the first flow channel 21. The first flow channel 21 and / or the second flow channel 22 can be configured as square or rectangular flow channels, but are not limited thereto.
[0053] In one embodiment, the first flow channel 21 is symmetrical about a plane A perpendicular to the rotation axis O, where the diameter of the spherical valve core 20 lies. That is, the first flow channel 21 is configured as a symmetrical flow channel symmetrical about plane A, with the first flow channel 21 having equal dimensions on both sides of plane A. This allows for the reservation of space at the top and bottom of the spherical valve core 20. For example, the top space can be used to accommodate a connection structure for the transmission rod, while the bottom space can be used to accommodate a reinforcement structure. This not only increases the cross-sectional area of the first flow channel 21, but also facilitates the structural configuration of the spherical valve core 20 and ensures that the spherical valve core 20 has sufficient strength.
[0054] In one embodiment, the second flow channel 22 is symmetrical about the plane A. Thus, the second flow channel 22 is configured as a symmetrical flow channel, and the sizes of the second flow channel 22 on both sides of the plane A are equal, so that the second flow channel 22 is closer to the center of the spherical valve core 20, thereby increasing the strength of the top and bottom of the spherical valve core 20 in the direction of the rotation axis O.
[0055] This disclosure does not limit the circumferential arrangement of the first and second flow channels 21, 22 within the spherical valve core 20. In one embodiment, the first and second flow channels 21, 22 are arranged within a 180° circumferential range of the spherical valve core 20. This arrangement reduces the circumferential length of the first and second flow channels 21, 22, thereby increasing the strength of the spherical valve core 20. Furthermore, it reduces the rotation angle of the spherical valve core 20, thereby minimizing wear on the sealing ring between the valve body 10 and the spherical valve core 20, thereby extending the durability of the three-way ball valve 100.
[0056] In a specific embodiment, the first flow channel 21 is arranged in the range of 45° to 90° in the circumferential direction of the spherical valve core 20. For example, the setting area of the first flow channel 21 can be 45°, 50°, 55°, 60°, 70°, 80°, 90°, but is not limited thereto. In a specific embodiment, the second flow channel 22 is arranged in the range of 45° to 90° in the circumferential direction of the spherical valve core 20. For example, the setting area of the second flow channel 22 can be 45°, 50°, 55°, 60°, 65°, 70°, 75°, 80°, 85°, 90°, but is not limited thereto.
[0057] The opening of the three-way ball valve 100 is adjustable. FIG1 shows a schematic diagram of the three-way ball valve 100 with an opening of 50%. FIG3 shows a schematic diagram of the three-way ball valve 100 with an opening of 0%. FIG4 shows a schematic diagram of the three-way ball valve 100 with an opening of 100%.
[0058] In the embodiment shown in FIG1 , when the opening of the three-way ball valve 100 is 50%, both the first flow channel 21 and the second flow channel 22 are connected to the medium inlet 11. In the embodiment shown in FIG3 , when the opening of the three-way ball valve 100 is 0%, the first flow channel 21 is closed, and the second flow channel 22 is fully open and connected to the medium inlet 11. In the embodiment shown in FIG4 , when the opening of the three-way ball valve 100 is 100%, the first flow channel 21 is fully open and connected to the medium inlet 11, and the second flow channel 22 is closed. Thus, the flow rates in the first flow channel 21 and the second flow channel 22 can be adjusted by adjusting the opening of the three-way ball valve 100.
[0059] In one embodiment, the spherical valve core 20 is further provided with a first rotation stop and a second rotation stop. The spherical valve core 20 is controlled to rotate between the first and second rotation stops, thereby adjusting the opening of the three-way ball valve 100 between 0% and 100%. The first and second rotation stops are set as the extreme ends of the rotation range of the spherical valve core 20 and are located in areas of the spherical valve core 20 where no flow channels are provided. The areas of the spherical valve core 20 other than the first and second flow channels 21, 22 can serve as the first and second rotation stops.
[0060] The present disclosure also provides an electric vehicle, comprising the three-way ball valve 100 described above, a medium input assembly, a first heating unit, a first assembly, a second heating unit, and a second assembly. The medium input assembly is connected to the medium inlet 11 of the three-way ball valve 100, the first heating unit is connected to the first medium outlet 12 of the three-way ball valve 100 and the first assembly, for supplying heat to the first assembly, and the second heating unit is connected to the second medium outlet 13 of the three-way ball valve 100 and the second assembly, for supplying heat to the second assembly. The heat load of the first heating unit is greater than the heat load of the second heating unit. In this way, the problem of large differences in flow requirements between the first and second assemblies in the electric vehicle can be balanced. In one embodiment, one of the first heating unit and the second heating unit is a heat exchange assembly, and the other is an air conditioner. One of the first and second assemblies is a battery assembly, and the other is a passenger compartment, but is not limited to this.
[0061] Please refer to FIG5 , which is a flow chart of a method for controlling the opening of a three-way ball valve according to an exemplary embodiment of the present disclosure.
[0062] The present disclosure further provides a method for controlling the opening of a three-way ball valve 100 , which is applied to the three-way ball valve 100 described above.
[0063] The opening control method includes step S10, step S20 and step S30.
[0064] Step S10: obtaining a ratio of a current heat load of the first heating unit to a current heat load of the second heating unit, wherein the ratio is defined as a first ratio.
[0065] Under different working conditions, the current heat load of the first heating unit is different, and the current heat load of the second heating unit is different. Therefore, it is necessary to obtain the current heat load of the first heating unit and the current heat load of the second heating unit in real time and determine the ratio between the two.
[0066] In one embodiment, the current heat load of the first heating unit is R1×Q1×|T1-Ts|, and the current heat load of the second heating unit is R2×Q2×|T2-Td|. Here, R1 represents the specific heat of the medium in the first heating unit, Q1 represents the circulation flow rate of the medium in the first heating unit, T1 represents the current temperature of the medium in the first heating unit, and Ts represents the target temperature of the medium in the first heating unit; R2 represents the specific heat of the medium in the second heating unit, Q2 represents the circulation flow rate of the medium in the second heating unit, T2 represents the current temperature of the medium in the second heating unit, and Td represents the target temperature of the medium in the second heating unit. R1 and R2 are fixed values. For example, R1 can be the specific heat of the coolant, and R2 can be the specific heat of air. Q1, T1, Q2, and T2 can be acquired through sensors, while Ts and Td can be preset values.
[0067] Step S20, determining the size of the first ratio and the second ratio, where the second ratio is defined as the ratio of the cross-sectional area of the first flow channel to the cross-sectional area of the second flow channel, and the flow cross-sectional area of the first flow channel is greater than the flow cross-sectional area of the second flow channel.
[0068] In this step, the second ratio can be determined based on the maximum heat loads of the first and second heating units. Specifically, the second ratio can be equal to the ratio of the maximum heat load of the first heating unit to the maximum heat load of the second heating unit, or the ratio of the connecting area between the medium inlet 11 and the first flow channel 21 to the connecting area between the medium inlet 11 and the second flow channel 22 when the three-way ball valve is 50% open. This allows the design parameters of the first and second flow channels 21, 22 to be linked to the heat load parameters during system operation, meeting flow control requirements.
[0069] In step S30, the opening of the three-way ball valve 100 is controlled according to the judgment result, wherein the opening of the three-way ball valve is 50% as the initial position of the spherical valve core. That is, when the opening is adjusted, the three-way ball valve 100 rotates clockwise or counterclockwise from the initial position.
[0070] In this method, the position of the spherical valve core 20 can be controlled according to the magnitude of the first ratio and the second ratio to achieve uneven distribution of flow on both sides and meet the heating needs of both sides.
[0071] In one embodiment, if the first ratio is greater than the second ratio, the opening of the three-way ball valve is controlled to be 50%+(S1-S) / S*50%, so that the flow rate in the first flow channel 21 is greater than the flow rate in the second flow channel 22. If the first ratio is less than the second ratio, the opening of the three-way ball valve is controlled to be 50%-(S-S1) / S*50%, so that the flow rate in the first flow channel 21 is less than the flow rate in the second flow channel. If the first ratio is equal to the second ratio, the opening of the three-way ball valve is controlled to be 50%. Wherein, S1 is the ratio of the current heat load of the first heating unit to the current heat load of the second heating unit, and S is the ratio of the cross-sectional area of the first flow channel to the cross-sectional area of the second flow channel. In this way, under different working conditions, the opening of the three-way ball valve can be controlled in real time according to the changes in the current heat loads of the first heating unit and the second heating unit to achieve uneven distribution of flow on both sides.
[0072] The present disclosure also provides an electronic device, which includes a memory and a processor, wherein the memory is used to store computer instructions that can be executed on the processor, and the processor is used to implement any of the above-mentioned opening adjustment methods when executing the computer instructions.
[0073] The present disclosure further provides a computer-readable storage medium having a computer program stored thereon, wherein the program, when executed by a processor, implements any of the above-mentioned methods for controlling the opening degree.
[0074] The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present disclosure should be included in the scope of protection of the present disclosure.
Claims
1. A three-way ball valve, characterized in that: include: The valve body is provided with a medium access port, a first medium outlet, and a second medium outlet, wherein the medium access port is used to introduce circulating medium, the first medium outlet is used to connect to a first heating unit, and the second medium outlet is used to connect to a second heating unit; and A spherical valve core is rotatably arranged in the valve body, and the spherical valve core is provided with a first flow channel and a second flow channel with different cross-sectional areas, the cross-sectional area of the first flow channel is larger than the cross-sectional area of the second flow channel, and the first flow channel and the second flow channel are distributed around the rotating axis of the spherical valve core. The spherical valve core is provided with an initial position, and the initial position is the position when the opening of the three-way ball valve is 50%. In the initial position, the medium inlet is sealed and connected with the first medium outlet via the first flow channel, and is also sealed and connected with the second medium outlet via the second flow channel. The spherical valve core can be controlled to rotate in a clockwise or counterclockwise direction from the initial position to adjust the opening of the three-way ball valve.
2. The three-way ball valve according to claim 1, characterized in that: The first flow channel and the second flow channel are configured so that the ratio of the cross-sectional area of the first flow channel to the cross-sectional area of the second flow channel is equal to the ratio of the maximum heat load of the first heating unit to the maximum heat load of the second heating unit, and is also equal to the ratio of the connecting area between the medium access port and the first flow channel to the connecting area between the medium access port and the second flow channel when the opening of the three-way ball valve is 50%.
3. The three-way ball valve according to claim 1, characterized in that: The dimension of the first flow channel in the rotation axis direction of the spherical valve core is larger than the dimension of the second flow channel in this direction. In the rotation axis direction, at least one end of the first flow channel is closer to the end of the spherical valve core than the second flow channel.
4. The three-way ball valve according to any one of claims 1 to 3, characterized in that: The first flow channel is symmetrical about a plane perpendicular to the rotation axis, and the plane is a plane where the diameter of the spherical valve core is located.
5. The ball valve according to claim 4, characterized in that: The second flow channel is symmetrical about the plane.
6. The three-way ball valve according to any one of claims 1 to 3, characterized in that: The first flow channel and the second flow channel are arranged within a 180° range in the circumferential direction of the spherical valve core.
7. The three-way ball valve according to claim 6, characterized in that: The first flow channel is arranged within a range of 45° to 90° in the circumferential direction of the spherical valve core; and / or The second flow channel is arranged within a range of 45° to 90° in the circumferential direction of the spherical valve core.
8. An electric vehicle, characterized in that: include: The three-way ball valve according to any one of claims 1 to 7; A medium input component connected to the medium inlet of the three-way ball valve; A first heating unit and a first component, wherein the first heating unit is connected to the first medium outlet of the three-way ball valve and the first component for supplying heat to the first component; and A second heating unit is connected to the second medium outlet of the three-way ball valve and the second component, and is used to supply heat to the second component. The heat load of the first heating unit is greater than the heat load of the second heating unit.
9. A method for controlling the opening of a three-way ball valve, applied to the three-way ball valve according to any one of claims 1 to 7, characterized in that: The method comprises: Obtaining a ratio of a current heat load of the first heating unit to a current heat load of the second heating unit, wherein the ratio is defined as a first ratio; Determining the magnitude of the first ratio and the second ratio, wherein the second ratio is defined as the ratio of the cross-sectional area of the first flow channel to the cross-sectional area of the second flow channel, and the cross-sectional area of the first flow channel is greater than the cross-sectional area of the second flow channel; The opening of the three-way ball valve is controlled according to the judgment result, wherein the opening of the three-way ball valve is 50% which is the initial position of the spherical valve core.
10. The opening control method according to claim 9, characterized in that: The second ratio is equivalent to the ratio of the maximum heat load of the first heating unit to the maximum heat load of the second heating unit, and is also equal to the ratio of the connecting area between the medium access port and the first flow channel to the connecting area between the medium access port and the second flow channel when the opening of the three-way ball valve is 50%.
11. The opening control method according to claim 9, characterized in that: If the first ratio is greater than the second ratio, the opening of the three-way ball valve is controlled to be 50%+(S1-S) / S*50%, so that the flow rate in the first flow channel is greater than the flow rate in the second flow channel; If the first ratio is smaller than the second ratio, the opening of the three-way ball valve is controlled to be 50%-(S-S1) / S*50%, so that the flow rate in the first flow channel is smaller than the flow rate in the second flow channel; If the first ratio is equal to the second ratio, the opening of the three-way ball valve is controlled to be 50%; Wherein, S1 is the ratio of the current heat load of the first heating unit to the current heat load of the second heating unit, and S is the ratio of the cross-sectional area of the first flow channel to the cross-sectional area of the second flow channel.
12. The opening control method according to any one of claims 9 to 11, characterized in that: The current heat load of the first heating unit is R1*Q1*|T1-Ts|, and the current heat load of the second heating unit is R2*Q2*|T2-Td|, Wherein: R1 is the specific heat capacity of the medium in the first heating unit, Q1 is the circulation flow rate of the medium in the first heating unit, T1 is the current temperature of the medium in the first heating unit, and Ts is the target temperature of the medium in the first heating unit; R2 is the specific heat capacity of the medium in the second heating unit, Q2 is the circulation flow rate of the medium in the second heating unit, T2 is the current temperature of the medium in the second heating unit, and Td is the target temperature of the medium in the second heating unit.
13. An electronic device, characterized in that: The electronic device comprises a memory and a processor, wherein the memory is used to store computer instructions executable on the processor, and the processor is used to implement the opening adjustment method according to any one of claims 9 to 12 when executing the computer instructions.
14. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the opening control method according to any one of claims 9 to 12 is implemented.