Passive one-way tee valve

Abstract

The application provides a passive one-way three-way valve, which comprises a valve body and a movable connecting rod arranged in the valve body, an internal side wall of the valve body is provided with a refrigeration side fixed partition plate and a heating side fixed partition plate, the movable connecting rod is connected with a refrigeration side movable plate and a heating side movable plate respectively, the refrigeration side fixed partition plate and the heating side fixed partition plate are respectively provided with a first air permeable hole and a second air permeable hole corresponding to positions of the refrigeration side fixed partition plate and the heating side fixed partition plate; the movement of the refrigeration side movable plate and the heating side movable plate is controlled by pressure changes generated by refrigeration mode and heating mode switching, the air permeable hole on one side of the movable plate is closed by being attached to the corresponding movable partition plate, and the air permeable hole on the other side of the movable plate is in a communication state, so that the function of a two-way circulation one-way valve is realized, the structure is simplified, and the material cost can be reduced.

Description

Technical Field

[0001] This application relates to the field of one-way valve technology, and in particular to a passive one-way three-way valve. Background Technology

[0002] A check valve is a common connection component. Common modular units use a large number of bidirectional flow check valve assemblies. A bidirectional flow check valve assembly consists of two check valves. The flow of fluid is controlled by electromagnetic control of the opening and closing of a single check valve. This type of check valve assembly, consisting of two check valves, has a complex structure, many solder joints, and high material costs. Summary of the Invention

[0003] To address the aforementioned issues, this application provides a passive one-way three-way valve that can achieve the function of a one-way valve assembly with bidirectional flow through a simplified structure, thereby reducing material costs.

[0004] This application provides a passive one-way three-way valve, including a valve body and a movable connecting rod disposed inside the valve body, characterized in that: The valve body is provided with a cooling side fixing partition and a heating side fixing partition on its inner side wall; One end of the movable connecting rod is connected to the refrigeration side movable plate, and the other end is connected to the heating side movable plate. The edges of the refrigeration side movable plate and the heating side movable plate are in contact with the inner side wall of the valve body. The cooling-side fixed partition and the heating-side fixed partition are respectively provided with a first vent hole and a second vent hole corresponding to the positions of the cooling-side fixed partition and the heating-side fixed partition. The movement of the cooling-side movable plate and the heating-side movable plate is controlled by the pressure change generated by switching between cooling and heating modes, so that the vent on one side of the movable plate is closed with its corresponding movable partition, while the other side of the movable plate is in a connected state.

[0005] As a further improvement of the present invention, the movable connecting rod is connected to the center point of the cooling-side movable plate and the heating-side movable plate respectively, so that the cooling-side movable plate and the heating-side movable plate are subjected to uniform force.

[0006] As a further improvement of the present invention, there are two fixed partitions on the refrigeration side, and the fixed partitions on the refrigeration side are symmetrically arranged about the movable connecting rod.

[0007] As a further improvement of the present invention, there are two heating-side fixed partitions, which are symmetrically arranged about the movable connecting rod.

[0008] As a further improvement of the present invention, the cooling-side movable plate and the heating-side movable plate are circular partitions with the same diameter as the inner diameter of the valve body, which isolate the fluid inside and outside the cooling-side movable plate and the heating-side movable plate.

[0009] As a further improvement of the present invention, a rubber ring is provided around the edge of the cooling-side movable plate and the heating-side movable plate, which can increase the sealing performance of the cooling-side movable plate and the heating-side movable plate.

[0010] As a further improvement of the present invention, there are two first vent holes, which are symmetrically designed about the center point of the refrigeration side movable plate and correspond to the position of the refrigeration side fixed partition.

[0011] As a further improvement of the present invention, there are two second vent holes, which are symmetrically designed about the center point of the heating side movable plate and correspond to the position of the heating side fixed partition.

[0012] As a further improvement of the present invention, rubber pads are installed on the surfaces of the cooling-side fixed partition and the heating-side fixed partition to increase the sealing between them and the first vent and the second vent.

[0013] As a further improvement of the present invention, a vent slide is provided next to the first vent and a plurality of second vents, and the size of the first vent and the second vent can be controlled by sliding the vent slide.

[0014] The technical problem solved by this invention: The existing two check valves form a bidirectional flow check valve assembly, which has a complex structure, many solder joints, and high material costs.

[0015] The beneficial effects of this invention are: The movement of the cooling-side movable plate and the heating-side movable plate is controlled by the pressure change generated by switching between cooling and heating modes. This causes the vent on one side of the movable plate to fit with its corresponding movable partition to form a seal, while the other side of the movable plate remains open. This achieves the function of a one-way valve with bidirectional flow, simplifying the structure and reducing material costs. Attached Figure Description

[0016] The present application will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the structure of a passive one-way three-way valve provided in an embodiment of this application; Figure 2 This application provides a schematic diagram of a one-way three-way valve in a cooling state according to an embodiment of the present application. Figure 3 A schematic diagram of a one-way three-way valve in heating state is provided for an embodiment of this application; Figure 4 A top view of a one-way three-way valve provided in an embodiment of this application; Figure 5 A schematic diagram of the structure of a passive one-way three-way valve with a vented slide provided in an embodiment of this application; Figure 6 This is a schematic diagram of a cooling-side movable plate structure with a vented sliding plate provided in an embodiment of this application.

[0018] Figure label: 1. Valve body; 2. Movable connecting rod; 3. Cooling side fixed partition; 4. Heating side fixed partition; 5. Cooling side movable plate; 6. Heating side movable plate; 7. First vent hole; 8. Second vent hole; 9. Fluid inlet; 10. Vent hole slide.

[0019] In the accompanying drawings, the same parts are referred to by the same reference numerals, and the drawings are not drawn to scale. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings. The described embodiments should not be regarded as limitations on this application. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] In the following description, references are made to “some embodiments,” which describe a subset of all possible embodiments. However, it is understood that “some embodiments” may be the same subset or different subsets of all possible embodiments and may be combined with each other without conflict.

[0022] If the application documents contain similar descriptions such as "first, second, third", the following explanation shall be added: In the following description, the terms "first, second, third" are used only to distinguish similar objects and do not represent a specific order of objects. It is understood that "first, second, third" may be interchanged in a specific order or sequence where permitted, so that the embodiments of this application described herein can be implemented in an order other than that illustrated or described herein.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing embodiments of this application only and is not intended to limit this application.

[0024] Example 1: Based on the problems existing in related technologies, this application provides a passive one-way three-way valve, including a valve body 1 and a movable connecting rod 2 disposed inside the valve body 1, characterized in that: The valve body 1 is provided with a cooling side fixed partition 3 and a heating side fixed partition 4 on its inner side wall; One end of the movable connecting rod is connected to the cooling side movable plate 5, and the other end is connected to the heating side movable plate 6. The edges of the cooling side movable plate 5 and the heating side movable plate 6 are in contact with the inner side wall of the valve body 1. The cooling-side fixed partition 3 and the heating-side fixed partition 4 are respectively provided with a first vent 7 and a second vent 8 corresponding to the positions of the cooling-side fixed partition 3 and the heating-side fixed partition 4. The pressure changes generated by switching between cooling and heating modes control the movement of the cooling-side movable plate 5 and the heating-side movable plate 6, so that the vent holes on one side of the movable plate are fitted with their corresponding movable partitions to form a seal, while the other side of the movable plate is in a connected state.

[0025] For example, Figure 1 A schematic diagram of a passive one-way three-way valve provided in this application embodiment includes: a valve body 1, a movable connecting rod 2, a cooling-side fixed partition 3, a heating-side fixed partition 4, a cooling-side movable plate 5, a heating-side movable plate 6, a first vent hole 7, a second vent hole 8, and a fluid inlet 9. The fluid inlet 9 is provided on the side wall of the valve body 1, and the movable connecting rod 2 is located at the center of the valve body 1. The two ends of the movable connecting rod 2 are respectively connected to the center of the cooling-side movable plate 5 and the heating-side movable plate 6.

[0026] In this embodiment, both the cooling-side movable plate 5 and the heating-side movable plate 6 are circular partitions. The diameter of these circular partitions is the same as the internal diameter of the valve body 1, which allows the cooling-side movable plate 5 and the heating-side movable plate 6 to form a seal with the interior of the valve body 1.

[0027] Specifically, rubber rings are provided on the edges of the cooling-side movable plate 5 and the heating-side movable plate 6 to increase the sealing between the cooling-side movable plate 5 and the heating-side movable plate 6 and the interior of the valve body 1.

[0028] In this embodiment, there are two refrigeration-side fixed partitions 3, which are symmetrically arranged about the movable connecting rod 2.

[0029] In this embodiment, there are two heating-side fixed partitions 4, which are symmetrically arranged about the movable connecting rod 2.

[0030] In this embodiment, there are two first vent holes 7 provided on the refrigeration side movable plate 5. The first vent holes 7 are symmetrically designed about the center point of the refrigeration side movable plate 5, and the position of the first vent holes 7 corresponds to the position of the refrigeration side fixed partition 3.

[0031] In this embodiment, there are two second vent holes 8 provided on the heating-side movable plate 6. The second vent holes 8 are symmetrically designed about the center point of the heating-side movable plate 6, and the position of the second vent holes 8 corresponds to the position of the cooling-side fixed partition 3.

[0032] In this embodiment, the cooling-side movable plate 5 and the heating-side movable plate 6 are circular partitions with the same diameter as the inner diameter of the valve body 1, which isolate the fluid inside and outside the cooling-side movable plate 5 and the heating-side movable plate 6.

[0033] In this embodiment, the one-way three-way valve mentioned can be applied to air conditioning refrigeration and heating systems, as well as other devices with refrigeration and heating functions.

[0034] In detail, when the cooling mode is running, the fluid on the outside of the cooling-side movable plate 5 enters the cooling system to work, so the pressure on the outside of the cooling-side movable plate 5 decreases, and the central connecting rod 2 and the cooling-side movable plate 5 and the heating-side movable plate 6 connected to both ends of the central connecting rod 2 move towards the cooling side.

[0035] In this embodiment, the cooling-side movable plate 5 and the heating-side movable plate 6 have a fixing function. When the central connecting rod 2 and the cooling-side movable plate 5 and the heating-side movable plate 6 connected to both ends of the central connecting rod 2 move towards the cooling side, the heating-side fixed partition 4 fixes the heating-side movable plate 6, restricting the movement of the central connecting rod 2 and the cooling-side movable plate 5 and the heating-side movable plate 6 connected to both ends of the central connecting rod 2.

[0036] In detail, the cooling-side movable plate 5 and the heating-side movable plate 6 have an isolating function. When the central connecting rod 2 and the cooling-side movable plate 5 and the heating-side movable plate 6 connected to both ends of the central connecting rod 2 move towards the cooling side, the heating-side fixed partition 4 and the second vent hole 8 on the heating-side movable plate 6 are fitted together to form a seal, and the fluid enters the refrigeration system through the first vent hole 7 on the cooling-side movable plate 5.

[0037] In this embodiment, rubber pads are installed on the surfaces of the cooling-side fixed partition 3 and the heating-side fixed partition 4 to increase the sealing with the first vent hole 7 and the second vent hole 8.

[0038] Reference Figure 2The diagram shown is a schematic of the structure of a one-way three-way valve in cooling state according to an embodiment of this application. It includes a valve body 1, a movable connecting rod 2, a cooling-side fixed partition 3, a heating-side fixed partition 4, a cooling-side movable plate 5, a heating-side movable plate 6, a first vent hole 7, a second vent hole 8, and a fluid inlet 9. After the fluid enters the valve body 1 through the fluid inlet 9, it enters the cooling system through the first vent hole 7 on the cooling-side movable plate 5.

[0039] In this embodiment, when the heating mode is running, the fluid on the outside of the heating-side movable plate 6 enters the heating system to work, so the pressure on the outside of the heating-side movable plate 6 decreases, and the central connecting rod 2 and the cooling-side movable plate 5 and the heating-side movable plate 6 connected to both ends of the central connecting rod 2 move towards the heating side.

[0040] In this embodiment, the cooling-side movable plate 5 and the heating-side movable plate 6 have a fixing function. When the central connecting rod 2 and the cooling-side movable plate 5 and the heating-side movable plate 6 connected to both ends of the central connecting rod 2 move towards the heating side, the cooling-side fixed partition 3 fixes the cooling-side movable plate 5, restricting the movement of the central connecting rod 2 and the cooling-side movable plate 5 and the heating-side movable plate 6 connected to both ends of the central connecting rod 2.

[0041] In detail, the cooling-side movable plate 5 and the heating-side movable plate 6 have an isolating function. When the central connecting rod 2 and the cooling-side movable plate 5 and the heating-side movable plate 6 connected to both ends of the central connecting rod 2 move towards the heating side, the cooling-side fixed partition 3 and the first vent 7 on the cooling-side movable plate 5 are fitted together to form a seal, and the fluid enters the heating system through the second vent 8 on the heating-side movable plate 6.

[0042] Reference Figure 3 The diagram shown is a schematic of the structure of a one-way three-way valve in heating mode according to an embodiment of this application. It includes a valve body 1, a movable connecting rod 2, a cooling side fixed partition 3, a heating side fixed partition 4, a cooling side movable plate 5, a heating side movable plate 6, a first vent hole 7, a second vent hole 8, and a fluid inlet 9. After the fluid enters the valve body 1 through the fluid inlet 9, it enters the refrigeration system through the second vent hole 7 on the heating side movable plate 6.

[0043] Reference Figure 4 The figure shows a top view of a one-way three-way valve provided by the present invention, including a valve body 1, a refrigeration side movable plate 5, and a first vent hole 7.

[0044] Working principle: When the cooling mode is running, fluid from the outside of the cooling-side movable plate 5 enters the cooling system, thus reducing the pressure on the outside of the cooling-side movable plate 5. Due to the pressure difference between the inside and outside, the linkage device consisting of the central connecting rod 2 and the cooling-side movable plate 5 and the heating-side movable plate 6 connected to both ends of the central connecting rod 2 moves towards the cooling side. Since the valve body 1 is equipped with a cooling-side fixed partition 3 and a heating-side fixed partition 4, the heating-side movable plate 6 is fixed by the heating-side fixed partition 4, thereby restricting the movement of the linkage device. At the same time, the heating-side fixed partition 4 and the second vent hole 8 on the heating-side movable plate 6 are fitted together to form a seal. At this time, fluid enters the valve body 1 from the fluid inlet 9 and is discharged through the first vent hole 7 on the cooling-side movable plate 5, forming a flow towards the cooling side. A one-way valve on the cold side; when operating in heating mode, fluid outside the heating-side movable plate 6 enters the heating system, thus reducing the pressure outside the heating-side movable plate 6. Due to the pressure difference between the inside and outside, the linkage device consisting of the central connecting rod 2 and the cooling-side movable plate 5 and heating-side movable plate 6 connected to both ends of the central connecting rod 2 moves towards the heating side. Since the valve body 1 is equipped with a heating-side fixed partition 3 and a heating-side fixed partition 4, the cooling-side movable plate 5 is fixed by the cooling-side fixed partition 3, thus restricting the movement of the linkage device. At the same time, the first vent hole 7 of the cooling-side fixed partition 3 and the cooling-side movable plate 5 are closed. At this time, fluid enters the valve body 1 from the fluid inlet 9 and is discharged through the second vent hole 8 on the heating-side movable plate 5, forming a one-way valve flowing towards the heating side.

[0045] Example 2: Since the sizes of the first vent 7 and the second vent 8 are fixed, the flow rate of the fluid cannot be controlled.

[0046] Based on the problems existing in related technologies, this application provides a passive one-way three-way valve with a vented sliding plate, including a valve body 1 and a movable connecting rod 2 disposed inside the valve body 1, characterized in that: The valve body 1 is provided with a cooling side fixed partition 3 and a heating side fixed partition 4 on its inner side wall; One end of the movable connecting rod is connected to the cooling side movable plate 5, and the other end is connected to the heating side movable plate 6. The edges of the cooling side movable plate 5 and the heating side movable plate 6 are in contact with the inner side wall of the valve body 1. The cooling-side fixed partition 3 and the heating-side fixed partition 4 are respectively provided with a first vent 7 and a second vent 8 corresponding to the positions of the cooling-side fixed partition 3 and the heating-side fixed partition 4. The pressure changes generated by switching between cooling and heating modes control the movement of the cooling-side movable plate 5 and the heating-side movable plate 6, so that the vent holes on one side of the movable plate are fitted with their corresponding movable partitions to form a seal, while the other side of the movable plate is in a connected state.

[0047] For example, Figure 5 A schematic diagram of a passive one-way three-way valve with a vent slide provided in this application embodiment includes: a valve body 1, a movable connecting rod 2, a cooling-side fixed partition 3, a heating-side fixed partition 4, a cooling-side movable plate 5, a heating-side movable plate 6, a first vent 7, a second vent 8, a fluid inlet 9, and a vent slide 10. The fluid inlet 9 is provided on the side wall of the valve body 1. The movable connecting rod 2 is located at the center of the valve body 1. The two ends of the movable connecting rod 2 are respectively connected to the center of the cooling-side movable plate 5 and the heating-side movable plate 6. The vent slide 10 is located at the first vent 7 and the second vent 8.

[0048] In this embodiment, both the cooling-side movable plate 5 and the heating-side movable plate 6 are circular partitions. The diameter of these circular partitions is the same as the internal diameter of the valve body 1, which allows the cooling-side movable plate 5 and the heating-side movable plate 6 to form a seal with the interior of the valve body 1.

[0049] Specifically, rubber rings are provided on the edges of the cooling-side movable plate 5 and the heating-side movable plate 6 to increase the sealing between the cooling-side movable plate 5 and the heating-side movable plate 6 and the interior of the valve body 1.

[0050] In this embodiment, there are two refrigeration-side fixed partitions 3, which are symmetrically arranged about the movable connecting rod 2.

[0051] In this embodiment, there are two heating-side fixed partitions 4, which are symmetrically arranged about the movable connecting rod 2.

[0052] In this embodiment, there are two first vent holes 7 provided on the refrigeration side movable plate 5. The first vent holes 7 are symmetrically designed about the center point of the refrigeration side movable plate 5, and the position of the first vent holes 7 corresponds to the position of the refrigeration side fixed partition 3.

[0053] In this embodiment, there are two second vent holes 8 provided on the heating-side movable plate 6. The second vent holes 8 are symmetrically designed about the center point of the heating-side movable plate 6, and the position of the second vent holes 8 corresponds to the position of the cooling-side fixed partition 3.

[0054] In this embodiment, the cooling-side movable plate 5 and the heating-side movable plate 6 are circular partitions with the same diameter as the inner diameter of the valve body 1, which isolate the fluid inside and outside the cooling-side movable plate 5 and the heating-side movable plate 6.

[0055] In this embodiment, the one-way three-way valve mentioned can be applied to air conditioning refrigeration and heating systems, as well as other devices with refrigeration and heating functions.

[0056] In detail, when the cooling mode is running, the fluid on the outside of the cooling-side movable plate 5 enters the cooling system to work, so the pressure on the outside of the cooling-side movable plate 5 decreases, and the central connecting rod 2 and the cooling-side movable plate 5 and the heating-side movable plate 6 connected to both ends of the central connecting rod 2 move towards the cooling side.

[0057] In this embodiment, the cooling-side movable plate 5 and the heating-side movable plate 6 have a fixing function. When the central connecting rod 2 and the cooling-side movable plate 5 and the heating-side movable plate 6 connected to both ends of the central connecting rod 2 move towards the cooling side, the heating-side fixed partition 4 fixes the heating-side movable plate 6, restricting the movement of the central connecting rod 2 and the cooling-side movable plate 5 and the heating-side movable plate 6 connected to both ends of the central connecting rod 2.

[0058] In detail, the cooling-side movable plate 5 and the heating-side movable plate 6 have an isolating function. When the central connecting rod 2 and the cooling-side movable plate 5 and the heating-side movable plate 6 connected to both ends of the central connecting rod 2 move towards the cooling side, the heating-side fixed partition 4 and the second vent hole 8 on the heating-side movable plate 6 are fitted together to form a seal, and the fluid enters the refrigeration system through the first vent hole 7 on the cooling-side movable plate 5.

[0059] In this embodiment, rubber pads are installed on the surfaces of the cooling-side fixed partition 3 and the heating-side fixed partition 4 to increase the sealing with the first vent hole 7 and the second vent hole 8.

[0060] Reference Figure 2 The diagram shown is a schematic of the structure of a one-way three-way valve in cooling state according to an embodiment of this application. It includes a valve body 1, a movable connecting rod 2, a cooling-side fixed partition 3, a heating-side fixed partition 4, a cooling-side movable plate 5, a heating-side movable plate 6, a first vent hole 7, a second vent hole 8, and a fluid inlet 9. After the fluid enters the valve body 1 through the fluid inlet 9, it enters the cooling system through the first vent hole 7 on the cooling-side movable plate 5.

[0061] In this embodiment, when the heating mode is running, the fluid on the outside of the heating-side movable plate 6 enters the heating system to work, so the pressure on the outside of the heating-side movable plate 6 decreases, and the central connecting rod 2 and the cooling-side movable plate 5 and the heating-side movable plate 6 connected to both ends of the central connecting rod 2 move towards the heating side.

[0062] In this embodiment, the cooling-side movable plate 5 and the heating-side movable plate 6 have a fixing function. When the central connecting rod 2 and the cooling-side movable plate 5 and the heating-side movable plate 6 connected to both ends of the central connecting rod 2 move towards the heating side, the cooling-side fixed partition 3 fixes the cooling-side movable plate 5, restricting the movement of the central connecting rod 2 and the cooling-side movable plate 5 and the heating-side movable plate 6 connected to both ends of the central connecting rod 2.

[0063] In detail, the cooling-side movable plate 5 and the heating-side movable plate 6 have an isolating function. When the central connecting rod 2 and the cooling-side movable plate 5 and the heating-side movable plate 6 connected to both ends of the central connecting rod 2 move towards the heating side, the cooling-side fixed partition 3 and the first vent 7 on the cooling-side movable plate 5 are fitted together to form a seal, and the fluid enters the heating system through the second vent 8 on the heating-side movable plate 6.

[0064] Reference Figure 3 The diagram shown is a schematic of the structure of a one-way three-way valve in heating mode according to an embodiment of this application. It includes a valve body 1, a movable connecting rod 2, a cooling side fixed partition 3, a heating side fixed partition 4, a cooling side movable plate 5, a heating side movable plate 6, a first vent hole 7, a second vent hole 8, and a fluid inlet 9. After the fluid enters the valve body 1 through the fluid inlet 9, it enters the refrigeration system through the second vent hole 7 on the heating side movable plate 6.

[0065] In this embodiment, the size of the first vent 7 and the second vent 8 can be controlled by the vent slide 10, thereby controlling the flow rate of the fluid.

[0066] Reference Figure 6 The diagram shows a cooling-side movable plate structure with a vent slide provided by the present invention, including a cooling-side movable plate 5, a first vent 7, and a vent slide 10. The vent slide 101 is disposed next to the first vent 7, and the size of the first vent 7 can be controlled by sliding the vent slide 10.

[0067] Reference Figure 4 The figure shows a top view of a one-way three-way valve provided by the present invention, including a valve body 1, a refrigeration side movable plate 5, and a first vent hole 7.

[0068] Working principle: When the cooling mode is running, fluid from the outside of the cooling-side movable plate 5 enters the cooling system, thus reducing the pressure on the outside of the cooling-side movable plate 5. Due to the pressure difference between the inside and outside, the linkage device consisting of the central connecting rod 2 and the cooling-side movable plate 5 and the heating-side movable plate 6 connected to both ends of the central connecting rod 2 moves towards the cooling side. Since the valve body 1 is equipped with a cooling-side fixed partition 3 and a heating-side fixed partition 4, the heating-side movable plate 6 is fixed by the heating-side fixed partition 4, thereby restricting the movement of the linkage device. At the same time, the heating-side fixed partition 4 and the second vent hole 8 on the heating-side movable plate 6 are fitted together to form a seal. At this time, fluid enters the valve body 1 from the fluid inlet 9 and is discharged through the first vent hole 7 on the cooling-side movable plate 5, forming a flow towards the cooling side. A one-way valve on the cold side; when operating in heating mode, fluid outside the heating-side movable plate 6 enters the heating system, thus reducing the pressure outside the heating-side movable plate 6. Due to the pressure difference between the inside and outside, the linkage device consisting of the central connecting rod 2 and the cooling-side movable plate 5 and heating-side movable plate 6 connected to both ends of the central connecting rod 2 moves towards the heating side. Since the valve body 1 is equipped with a heating-side fixed partition 3 and a heating-side fixed partition 4, the cooling-side movable plate 5 is fixed by the cooling-side fixed partition 3, thus restricting the movement of the linkage device. At the same time, the first vent hole 7 of the cooling-side fixed partition 3 and the cooling-side movable plate 5 are closed. At this time, fluid enters the valve body 1 from the fluid inlet 9 and is discharged through the second vent hole 8 on the heating-side movable plate 5, forming a one-way valve flowing towards the heating side.

[0069] It should be understood that the phrase "one embodiment" or "an embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of this application. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. It should be understood that in the various embodiments of this application, the sequence numbers of the above-described processes do not imply a sequential order of execution; the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application. The sequence numbers of the above-described embodiments are merely descriptive and do not represent the superiority or inferiority of the embodiments.

[0070] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0071] The above description is merely an embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A passive one-way three-way valve, comprising a valve body and a movable connecting rod disposed inside the valve body, characterized in that: The valve body is provided with a cooling side fixing partition and a heating side fixing partition on its inner side wall; One end of the movable connecting rod is connected to the refrigeration side movable plate, and the other end is connected to the heating side movable plate. The edges of the refrigeration side movable plate and the heating side movable plate are in contact with the inner side wall of the valve body. The cooling-side fixed partition and the heating-side fixed partition are respectively provided with a first vent hole and a second vent hole corresponding to the positions of the cooling-side fixed partition and the heating-side fixed partition. The movement of the cooling-side movable plate and the heating-side movable plate is controlled by the pressure change generated by switching between cooling mode and heating mode, so that the vent on one side of the movable plate is fitted with its corresponding movable partition to form a seal, while the other side of the movable plate is in a connected state. The movable connecting rod is connected to the center point of the cooling side movable plate and the heating side movable plate respectively, so that the cooling side movable plate and the heating side movable plate are subjected to uniform force. There are two fixed partitions on the refrigeration side, and the fixed partitions on the refrigeration side are symmetrically arranged about the movable connecting rod; There are two fixed partitions on the heating side, and the fixed partitions on the heating side are symmetrically arranged about the movable connecting rod; The cooling-side movable plate and the heating-side movable plate are circular partitions with the same diameter as the inner diameter of the valve body, which isolate the fluid inside and outside the cooling-side movable plate and the heating-side movable plate.

2. The passive one-way three-way valve according to claim 1, characterized in that, A rubber ring is provided around the edge of the cooling-side movable plate and the heating-side movable plate to increase the sealing performance of the cooling-side movable plate and the heating-side movable plate.

3. The passive one-way three-way valve according to claim 2, characterized in that, There are two first vent holes. The first vent holes are designed symmetrically about the center point of the refrigeration side movable plate and correspond to the position of the refrigeration side fixed partition.

4. The passive one-way three-way valve according to claim 3, characterized in that, There are two second vent holes. The second vent holes are designed symmetrically about the center point of the heating side movable plate and correspond to the position of the heating side fixed partition.

5. The passive one-way three-way valve according to claim 4, characterized in that, Rubber pads are installed on the surfaces of the cooling-side fixed partition and the heating-side fixed partition to increase the sealing between them and the first vent and the second vent.

6. The passive one-way three-way valve according to claim 5, characterized in that, Both the first and second vent holes are provided with vent slides, and the size of the first and second vent holes can be controlled by sliding the vent slides.

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