A tee valve and air conditioner using the same

Abstract

The utility model provides a tee bend valve and air conditioner of application thereof, tee bend valve includes valve body, valve core and drive mechanism, the valve body has the inner chamber, the inner chamber has the refrigerant import, first valve core export and second valve core export, be equipped with first threaded part on the valve core, be equipped with second threaded part on the valve body, first threaded part with second threaded part two threaded fit, drive mechanism is used for driving valve core rotates, the valve core is used for moving to different positions along the center line of second threaded part through first threaded part when rotating to open and close first valve core export and second valve core export. According to the technical scheme of the utility model, relative to the movement of valve core in the prior art needs to move through the transmission of screw rod and elastic piece, the movement of valve core in the utility model does not need the intermediate transmission of screw rod and elastic piece, thereby has the advantage of simplifying structure, reduces cost.

Description

Technical Field

[0001] This utility model belongs to the field of valve technology, specifically relating to a three-way valve and an air conditioner using the same. Background Technology

[0002] Currently, with the rapid development of the air conditioning industry, refrigeration terminal components are becoming increasingly diversified. Traditionally, the refrigerant flow distribution for parallel terminal components in a system flow path is controlled by adding a separate flow valve to each branch. However, when the flow distribution of parallel terminal components in the system flow path is complementary, adding a flow valve to each branch results in a large number of refrigerant valves in the system, increasing costs and requiring control of each valve, thus placing higher demands on the controller. Considering the problem of complementary flow distribution for two parallel terminal components in a system, existing technology provides a three-way valve with adjustable flow distribution.

[0003] like Figure 1 As shown, the existing three-way valve includes a valve body, a valve core 2-7, a screw 4, an elastic element 2, and a drive mechanism. The valve body has an inner cavity 2-9-5, which has a refrigerant inlet 2-9-1, a first valve core outlet 2-9-4, and a second valve core outlet 2-5-1. A nut 3 is fixed on the valve body, and the screw 4 is threadedly engaged with the nut 3. The drive mechanism drives the screw 4 to rotate. When the screw 4 rotates, it moves along the centerline of the nut 3 under the action of the nut 3, thereby pushing the valve core 2-7 to a first position, a second position, or a third position via the elastic element 2. When the valve core 2-7 moves to the first position, it blocks the first valve core outlet 2-9-4, allowing the refrigerant inlet 2-9-1 to connect with the second valve core outlet 2-5-1 through the inner cavity 2-9-5. When valve core 2-7 moves to the second position, it blocks the second valve core outlet 2-5-1, allowing the refrigerant inlet 2-9-1 to connect with the first valve core outlet 2-9-4 through the inner cavity 2-9-5. When valve core 2-7 moves to the third position, it simultaneously opens the first valve core outlet 2-9-4 and the second valve core outlet 2-5-1, allowing the refrigerant inlet 2-9-1 to connect with both the first valve core outlet 2-9-4 and the second valve core outlet 2-5-1 through the inner cavity 2-9-5.

[0004] The movement of valve core 2-7 requires transmission through screw 4 and elastic element 2, which makes the structure of the three-way valve more complex. Therefore, this problem needs to be addressed. Utility Model Content

[0005] Therefore, this utility model provides a three-way valve and an air conditioner using it, which can solve the technical problem that the movement of the valve core in the prior art needs to be driven by the transmission of a screw and an elastic element, resulting in a more complex structure of the three-way valve.

[0006] To solve the above problems, this utility model provides a three-way valve, which includes a valve body, a valve core and a drive mechanism. The valve body has an inner cavity, and the inner cavity has a refrigerant inlet, a first valve core outlet and a second valve core outlet. The valve core is provided with a first threaded portion, and the valve body is provided with a second threaded portion, wherein the first threaded portion and the second threaded portion are threadedly engaged. The driving mechanism is used to drive the valve core to rotate. When rotating, the valve core moves along the centerline of the second threaded portion to a first position, a second position, or a third position. Specifically, when the valve core moves to the first position, it blocks the first valve core outlet and opens the second valve core outlet, allowing the refrigerant inlet to communicate with the second valve core outlet through the inner cavity. When the valve core moves to the second position, it blocks the second valve core outlet and opens the first valve core outlet, allowing the refrigerant inlet to communicate with the first valve core outlet through the inner cavity. When the valve core moves to the third position, it simultaneously opens both the first and second valve core outlets, allowing the refrigerant inlet to communicate with both the first and second valve core outlets through the inner cavity.

[0007] In some embodiments, the three-way valve further includes a rotating component, which is fixed relative to the valve core in the circumferential direction; the driving mechanism drives the rotating component to rotate, so that the rotating component drives the valve core to rotate. The rotating component has a groove extending along the centerline of the second threaded portion at one end. A transmission part is fixed on the valve core. The transmission part is inserted into the groove through the opening of the groove and engages with the groove, so that the valve core and the rotating component are kept relatively fixed in the circumferential direction through the transmission part. The transmission part and the groove are also slidably engaged in the direction of the centerline of the second threaded portion. The three-way valve also includes an elastic element, which applies force to the rotating component so that the bottom surface of the groove abuts against the transmission part.

[0008] In some embodiments, the valve body is provided with a valve cover, the valve cover having an annular sidewall, the rotating member being sleeved on the inner side of the annular sidewall and rotatably engaged with the annular sidewall; wherein, the annular sidewall is also used to guide the movement of the rotating member in the direction of the centerline of the second threaded portion.

[0009] In some embodiments, the elastic element is disposed between the bottom surface of the valve cover and the rotating element, with one end of the elastic element abutting against the bottom surface of the valve cover and the other end of the elastic element abutting against the rotating element.

[0010] In some embodiments, the first threaded portion is disposed on the transmission portion so as to be disposed on the valve core via the transmission portion.

[0011] In some embodiments, the transmission part has an annular wall, the first threaded part is an internal thread provided on the inner side of the annular wall, and the second threaded part is an external thread provided on the valve body.

[0012] In some embodiments, the transmission part is provided with a connection hole, and the valve core is inserted into the connection hole.

[0013] In some embodiments, the valve body has a valve housing and a transmission mating part, the valve housing being hollow inside and having a first opening at one end; the transmission mating part covers the first opening and forms the inner cavity between the two. The refrigerant inlet and the first valve core outlet are both located on the valve body, and the second valve core outlet and the second threaded portion are both located on the transmission mating portion.

[0014] In some embodiments, the transmission mating part is columnar, and a first annular flange and a second annular flange are spaced apart along the center line on the outer wall of the transmission mating part. An annular groove is formed between the first annular flange and the second annular flange. A protruding post is formed on the side of the first annular flange opposite to the second annular flange, and the second threaded part is provided on the protruding post. The transmission mating part covers the first opening through the first annular flange; the second annular flange is located inside the valve housing and is sealed to the inner wall of the valve housing in the circumferential direction; a second refrigerant outlet is provided on the inner wall of the valve housing in the area opposite to the annular groove; the transmission mating part has an internal through hole that penetrates both ends along the center line direction; the internal through hole forms the second valve core outlet at one end inside the inner cavity; and a refrigerant through hole that penetrates to the internal through hole is provided at the bottom of the annular groove. The valve core passes through the internal through hole and exits the inner cavity, and the valve core is sealed to the end of the internal through hole that is opposite to the outlet of the second valve core. The driving mechanism drives the valve core to rotate by driving the end of the valve core that exits the inner cavity.

[0015] This utility model also provides an air conditioner, which includes the three-way valve described in any one of the above-mentioned methods.

[0016] The three-way valve and the air conditioner using it provided by this utility model have the following beneficial effects: 1. When the valve core is driven to rotate, it can move directly to different positions along the center line of the second threaded part through the first threaded part to switch the flow path and regulate the flow rate. Compared with the prior art where the movement of the valve core requires the transmission of a screw and an elastic element, the movement of the valve core in this invention does not require the intermediate transmission of a screw and an elastic element, thus having the advantage of simplified structure and reduced cost.

[0017] 2. The three-way valve of this utility model can not only realize the switching of flow direction of different flow paths, but also realize the function of flow distribution through the movement of valve core. For parallel components of the system, the valve configuration can be simplified. Attached Figure Description

[0018] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. The drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0019] Figure 1 This is a cross-sectional view of a three-way valve in the prior art; Figure 2 This is a three-dimensional schematic diagram of the three-way valve of this utility model; Figure 3 This is a cross-sectional view of the three-way valve of this utility model; Figure 4 yes Figure 3 Enlarged view of point A in the middle; Figure 5 This is an assembly diagram of the transmission unit, the transmission mating unit, and the valve core.

[0020] The attached figures are labeled as follows: 1. Stator coil; 2. Elastic element; 3. Nut; 4. Screw; 5. Plug section; 2-1. Valve cover; 2-2. First elastic element; 2-3. Rotating element; 2-4. Transmission part; 2-5. Transmission mating part; 2-6. First sealing ring; 2-7. Valve core; 2-8. Second sealing ring; 2-9. Valve housing; 2-10. Sealing gasket; 2-9-1. Refrigerant inlet; 2-9-2. First refrigerant outlet; 2-9-4. First valve core outlet; 2-7-1. First valve core conical section; 2-7-2. Second valve core conical section; 2-5. -1, Second valve core outlet; 2-9-5, Inner cavity; 2-9-3, Second refrigerant outlet; 2-5-4, Refrigerant through hole; 2-5-3, Second threaded part; 2-5-2, Internal through hole; 2-4-1, First threaded part; 2-7-3, Connecting section; 211, Annular sidewall; 231, Slide groove; 241, Connecting hole; 242, Annular wall; 251, First annular flange; 252, Second annular flange; 253, Annular groove; 254, Protrusion; 291, First opening; 2311, Opening of slide groove; a, Center line of the second threaded part. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0022] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms 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 on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0023] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0024] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0025] See also Figure 2-5 As shown, according to an embodiment of the present invention, a three-way valve is provided, comprising a valve body, a valve core 2-7, and a drive mechanism. The valve body has an inner cavity 2-9-5, which has a refrigerant inlet 2-9-1, a first valve core outlet 2-9-4, and a second valve core outlet 2-5-1. The valve core 2-7 is provided with a first threaded portion 2-4-1, and the valve body is provided with a second threaded portion 2-5-3, which are threadedly engaged. One of the first threaded portion 2-4-1 and the second threaded portion 2-5-3 is an external thread, and the other is an internal thread.

[0026] The aforementioned drive mechanism is used to drive the valve core 2-7 to rotate. The valve core 2-7, during rotation, moves along the center line a of the second threaded portion via the first threaded portion 2-4-1 to a first position, a second position, or a third position. Specifically, when the valve core 2-7 moves to the first position, it blocks the first valve core outlet 2-9-4, allowing the refrigerant inlet 2-9-1 to communicate with the second valve core outlet 2-5-1 through the inner cavity 2-9-5. When the valve core 2-7 moves to the second position, it blocks the second valve core outlet 2-5-1, allowing the refrigerant inlet 2-9-1 to communicate with the first valve core outlet 2-9-4 through the inner cavity 2-9-5. When the valve core 2-7 moves to the third position, it simultaneously opens both the first valve core outlet 2-9-4 and the second valve core outlet 2-5-1, allowing the refrigerant inlet 2-9-1 to communicate with both the first valve core outlet 2-9-4 and the second valve core outlet 2-5-1 through the inner cavity 2-9-5.

[0027] In the above example, when the valve core 2-7 is driven to rotate, it can move directly to different positions along the center line a of the second threaded part through the first threaded part 2-4-1 to switch the flow path and regulate the flow rate. Compared with the prior art, where the movement of the valve core needs to be driven by the screw and the elastic element, the movement of the valve core 2-7 in this utility model does not require the intermediate transmission of the screw and the elastic element, thus having the advantage of simplifying the structure and reducing the cost.

[0028] In some implementations, such as Figure 3-5 As shown, the aforementioned three-way valve also includes a rotating member 2-3, which is relatively fixed to the valve core 2-7 in the circumferential direction. The aforementioned drive mechanism drives the rotating member 2-3 to rotate, causing the rotating member 2-3 to drive the valve core 2-7 to rotate. One end of the rotating member 2-3 has a groove 231 extending along the center line a of the second threaded portion. A transmission part 2-4 is fixed to the valve core 2-7. This transmission part 2-4 is used to insert into the groove 231 through the opening 2311 of the groove and engage with the groove 231, so that the valve core 2-7 and the rotating member 2-3 are relatively fixed to each other in the circumferential direction via the transmission part 2-4. The transmission part 2-4 and the groove 231 also slide in the direction of the center line a of the second threaded portion. The three-way valve also includes a first elastic member 2-2, which applies force to the rotating member 2-3, causing the bottom surface of the groove 231 to abut against the transmission part 2-4.

[0029] In the above example, the valve core 2-7 can be inserted into the slide groove 231 through the opening 2311 of the slide groove via the transmission part 2-4. On the one hand, it can engage with the slide groove 231, so that the valve core 2-7 and the rotating member 2-3 are relatively fixed in the circumferential direction through the transmission part 2-4. In this way, when the rotating member 2-3 rotates, it can drive the valve core 2-7 to rotate together through the transmission part 2-4. On the other hand, by setting the first elastic member 2-2 to apply force to the rotating member 2-3, the bottom surface of the slide groove 231 abuts against the transmission part 2-4. This can prevent the transmission part 2-4 from coming out of the opening 2311 of the slide groove due to accidental impact, thus preventing the connection between the transmission part 2-4 and the rotating member 2-3 from failing.

[0030] The valve core 2-7 is connected to the sliding groove 231 on the rotating part 2-3 via the insertion and engagement of the transmission part 2-4 and the rotating part 2-3, which facilitates the assembly of the transmission part 2-4 and the rotating part 2-3 and simplifies the assembly process.

[0031] The valve core 2-7 mentioned above moves along the center line a of the second threaded portion, for example, during lifting or lowering, it can cooperate with the first elastic element 2-2 to drive the rotating element 2-3 to lift or lower together. Specifically, as... Figure 3-4As shown, when the valve core 2-7 rises, the valve core 2-7 can push against the bottom surface of the slide groove 231 through the transmission part 2-4, causing the rotating part 2-3 to rise together; when the valve core 2-7 falls, the first elastic element 2-2 pushes the rotating part 2-3 to fall together, so that the bottom surface of the slide groove 231 on the rotating part 2-3 abuts against the transmission part 2-4.

[0032] In a specific application example, the aforementioned rotating component 2-3 can be a rotor, specifically a magnetic rotor, which is a magnetic ring. The aforementioned drive mechanism includes a stator mounted on the valve body, which drives the rotating component 2-3 to rotate. The stator has a stator coil 1. When the stator coil 1 receives a pulse signal from the controller, the magnetic rotor rotates, thereby driving the transmission part 2-4 to rotate. Simultaneously, because the transmission part 2-4 and the transmission mating part 2-5 are threaded together, the transmission part 2-4 can move up and down along the center line of the thread while rotating, thereby driving the valve core 2-7 to move up and down.

[0033] In some implementations, such as Figure 3-4 As shown, the valve body may be provided with a valve cover 2-1, which has an annular sidewall 211. The aforementioned rotating member 2-3 is sleeved on the inner side of the annular sidewall 211 and rotatably engages with the annular sidewall 211. The annular sidewall 211 also serves to guide the movement of the rotating member 2-3 in the direction of the centerline a of the second thread.

[0034] In the above example, by providing an annular sidewall 211 on the valve cover 2-1, the rotation of the rotating part 2-3 and its movement along the center line of the second threaded part 2-5-3 can be guided and limited, thereby improving the movement accuracy of the rotating part 2-3.

[0035] In a specific application example, such as Figure 3-4 As shown, the aforementioned first elastic element 2-2 is disposed between the bottom surface of the valve cover 2-1 and the rotating element 2-3. One end of the first elastic element 2-2 abuts against the bottom surface of the valve cover 2-1, and the other end of the first elastic element 2-2 abuts against the rotating element 2-3. This allows the first elastic element 2-2 to be installed so that it can apply force to the rotating element 2-3, causing the bottom surface of the slide groove 231 to abut against the transmission part 2-4.

[0036] One end of the first elastic element 2-2 can be fixed to the bottom surface of the valve cover 2-1.

[0037] In some implementations, such as Figure 3-4 As shown, the aforementioned first threaded portion 2-4-1 can be provided on the transmission portion 2-4 so as to be provided on the valve core 2-7 via the transmission portion 2-4.

[0038] In the above example, by setting the first threaded portion 2-4-1 on the transmission portion 2-4 instead of directly on the valve core 2-7, it is advantageous to process the valve core 2-7 and the first threaded portion 2-4-1 separately, which facilitates processing.

[0039] In a specific application example, such as Figure 3-4 As shown, the aforementioned transmission part 2-4 may have an annular wall 242, and the aforementioned first threaded part 2-4-1 may be an internal thread provided on the inner side of the annular wall 242. Correspondingly, the aforementioned second threaded part 2-5-3 may be an external thread provided on the valve body, so that the valve body may be connected to the inner side of the annular wall 242 by means of the external thread.

[0040] In some implementations, such as Figure 4 As shown, the aforementioned transmission part 2-4 may be provided with a connecting hole 241, into which the valve core 2-7 is inserted to achieve a fixed connection between the valve core 2-7 and the transmission part 2-4. Specifically, the valve core 2-7 has a connecting section 2-7-3, which is press-fitted with the connecting hole 241 to allow the valve core 2-7 to be inserted into the connecting hole 241. The connecting section 2-7-3 may be cylindrical.

[0041] In some implementations, such as Figure 3 As shown, the aforementioned valve body has a valve housing 2-9 and a transmission mating part 2-5. The valve housing 2-9 is hollow inside and has a first opening 291 at one end. The transmission mating part 2-5 covers the first opening 291, forming the aforementioned inner cavity 2-9-5 between the two. The aforementioned refrigerant inlet 2-9-1 and the first valve core outlet 2-9-4 are both located on the valve housing 2-9, and the aforementioned second valve core outlet 2-5-1 and second threaded portion 2-5-3 are both located on the transmission mating part 2-5.

[0042] In the above example, the valve body is divided into a valve housing 2-9 and a transmission mating part 2-5. The valve housing 2-9 and the transmission mating part 2-5 are processed separately and then assembled, which has the advantage of convenient processing.

[0043] In some implementations, such as Figure 3-5As shown, the aforementioned transmission mating part 2-5 can be columnar. A first annular flange 251 and a second annular flange 252 are spaced apart along the centerline on the outer wall of the transmission mating part 2-5. An annular groove 253 is formed between the first annular flange 251 and the second annular flange 252. A protruding post 254 is formed on the side of the first annular flange 251 opposite to the second annular flange 252 in the transmission mating part 2-5, and the aforementioned second threaded part 2-5-3 is provided on the protruding post 254. The transmission mating part 2-5 covers the first opening 291 through the first annular flange 251; for example, the first annular flange 251 can be welded to the outer gap of the valve housing 2-9 for sealing. The second annular flange 252 is located inside the valve housing 2-9 and is circumferentially sealed to the inner wall of the valve housing 2-9. A second refrigerant outlet 2-9-3 is provided on the inner wall of the valve housing 2-9, in the area opposite to the annular groove 253. The transmission mating part 2-5 has an internal through-hole 2-5-2 extending through both ends along the centerline. One end of this internal through-hole 2-5-2 inside the inner cavity 2-9-5 forms the aforementioned second valve core outlet 2-5-1. A refrigerant through-hole 2-5-4, which can be a circular hole, is provided at the bottom of the annular groove 253, extending through the internal through-hole 2-5-2. The aforementioned valve core 2-7 passes through the internal through-hole 2-5-2 and exits the inner cavity 2-9-5, with a sealed fit between the valve core 2-7 and the end of the internal through-hole 2-5-2 facing away from the second valve core outlet 2-5-1. The aforementioned drive mechanism drives the valve core 2-7 to rotate by driving the end of the valve core 2-7 that exits the inner cavity 2-9-5.

[0044] In the above example, the internal through-hole 2-5-2 is the mounting hole for the valve core 2-7 and a channel connecting the second valve core outlet 2-5-1. The second valve core outlet 2-5-1 is connected to the second refrigerant outlet 2-9-3 via the internal through-hole 2-5-2, the refrigerant through-hole 2-5-4, and the annular groove 253. Leading the second valve core outlet 2-5-1 to the valve housing 2-9 facilitates its connection to external components, such as connecting pipes, via the second refrigerant outlet 2-9-3. Furthermore, allowing the valve core 2-7 to pass through the internal through-hole 2-5-2 and out of the inner cavity 2-9-5 facilitates the connection of the end of the valve core 2-7 through the inner cavity 2-9-5 to an external drive mechanism.

[0045] In some implementations, such as Figure 3-5As shown, the end of the aforementioned valve core 2-7 opposite to the second valve core outlet 2-5-1 of the internal through hole 2-5-2 can be sealed with a first sealing ring 2-6. The first sealing ring 2-6 can be positioned appropriately in the middle of the valve core 2-7, and its outer side contacts the internal through hole 2-5-2, thus providing a seal to prevent refrigerant leakage. Similarly, the aforementioned second annular flange 252 and the inner wall of the valve housing 2-9 can be sealed circumferentially with a second sealing ring 2-8. The second sealing ring 2-8 can be positioned in the middle of the second annular flange 252, and its outer side contacts the inner wall of the valve housing 2-9, thus providing a seal to prevent refrigerant leakage.

[0046] In some implementations, such as Figure 3 As shown, the aforementioned valve core 2-7 has a plug section 5 located in the inner cavity 2-9-5. When the valve core 2-7 moves to the aforementioned first position, the plug section 5 blocks the first valve core outlet 2-9-4 and opens the second valve core outlet 2-5-1. When the valve core 2-7 moves to the aforementioned second position, the plug section 5 blocks the second valve core outlet 2-5-1 and opens the first valve core outlet 2-9-4. When the valve core 2-7 moves to the aforementioned third position, the plug section 5 simultaneously opens both the first valve core outlet 2-9-4 and the second valve core outlet 2-5-1.

[0047] In some embodiments, the aforementioned first valve core outlet 2-9-4 has a first frustoconical orifice. Specifically, along the refrigerant flow direction within the first valve core outlet 2-9-4, the smaller end of the first frustoconical orifice is located downstream of the larger end. The aforementioned plug section has a first valve core frustoconical section 2-7-1 for engaging with the first frustoconical orifice, and the plug section opens or seals the first frustoconical orifice through the first valve core frustoconical section 2-7-1.

[0048] The aforementioned second valve core outlet 2-5-1 has a second frustoconical orifice. Specifically, along the refrigerant flow direction within the second valve core outlet 2-5-1, the smaller end of the second frustoconical orifice is located downstream of the larger end. The aforementioned plug section has a second valve core frustoconical section 2-7-2 for mating with the second frustoconical orifice. The plug section opens or seals the second frustoconical orifice through the second valve core frustoconical section 2-7-2.

[0049] In some embodiments, sealing gaskets 2-10 can be fixed at both the first valve core outlet 2-9-4 and the second valve core outlet 2-5-1, and the sealing gaskets 2-10 can improve the sealing effect of the sealing section.

[0050] In some embodiments, the aforementioned valve housing 2-9 is further provided with a first refrigerant outlet 2-9-2 that communicates with the first valve core outlet 2-9-4.

[0051] In some embodiments, the present invention also provides an air conditioner that may include any of the three-way valves available on the market.

[0052] The three-way valve of this invention has three basic states. Specifically, when the valve core 2-7 moves to the aforementioned first position, the three-way valve can be in the lower dead center state; when the valve core 2-7 moves to the aforementioned second position, the three-way valve can be in the upper dead center state; and when the valve core 2-7 moves to the aforementioned third position, the three-way valve can be in the intermediate state. In the intermediate state, there is a gap between the first valve core frustum section 2-7-1 and the first frustum-shaped orifice section, and there is also a gap between the second valve core frustum section 2-7-2 and the second frustum-shaped orifice section. At this time, the refrigerant inlet 2-9-1 is simultaneously connected to the first valve core outlet 2-9-4 and the second valve core outlet 2-5-1. The intermediate state can stop at multiple positions before the upper dead center state and the lower dead center state, realizing the proportional distribution of refrigerant at the outlets of the two valve cores 2-7. When at top dead center, valve core 2-7 moves upward under the action of rotating component 2-3. The second frustum-shaped section 2-7-2 on valve core 2-7 comes into close contact with the second frustum-shaped orifice section, blocking the second valve core outlet 2-5-1. This allows refrigerant to flow only through the first valve core outlet 2-9-4. At this time, no refrigerant flows through the second valve core outlet 2-5-1, and the refrigerant flow rate through the first valve core outlet 2-9-4 is at its maximum. When at bottom dead center, valve core 2-7 moves downward under the action of rotating component 2-3. The first frustum-shaped section 2-7-1 on valve core 2-7 comes into close contact with the first frustum-shaped orifice section, closing the first valve core outlet 2-9-4. This allows refrigerant to flow only through the second valve core outlet 2-5-1. At this time, no refrigerant flows through the first valve core outlet 2-9-4, and the refrigerant flow rate through the second valve core outlet 2-5-1 is at its maximum.

[0053] Based on the above three basic states, the amount of refrigerant in different flow paths can be adjusted by driving the valve core 2-7 to a state between the upper dead point and the lower dead point.

[0054] When the aforementioned rotating component 2-3 is a magnetic rotor, the three-way valve of this invention can control the rotation of the magnetic rotor by receiving pulse signals provided by the controller through the stator coil 1, thereby controlling the stop of the valve core 2-7 between the first valve core outlet 2-9-4 and the second valve core outlet 2-5-1, and realizing flow control of the outlets of the two valve cores 2-7.

[0055] The flow distribution adjustable electromagnetic three-way valve of this utility model can not only realize the switching of flow direction of different flow paths, but also realize the function of flow distribution through the movement of valve core 2-7. For parallel components of the system, the valve configuration can be simplified.

[0056] It will be readily understood by those skilled in the art that, without conflict, the advantageous technical features of the above-mentioned methods can be freely combined and superimposed.

[0057] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A three-way valve, characterized in that: It includes a valve body, a valve core (2-7), and a drive mechanism. The valve body has an inner cavity (2-9-5), and the inner cavity (2-9-5) has a refrigerant inlet (2-9-1), a first valve core outlet (2-9-4), and a second valve core outlet (2-5-1). The valve core (2-7) is provided with a first threaded portion (2-4-1), and the valve body is provided with a second threaded portion (2-5-3). The first threaded portion (2-4-1) and the second threaded portion (2-5-3) are threadedly engaged. The driving mechanism is used to drive the valve core (2-7) to rotate. The valve core (2-7) is used to move to a first position, a second position, or a third position via the first threaded portion (2-4-1) along the centerline (a) of the second threaded portion during rotation. Specifically, when the valve core (2-7) moves to the first position, it blocks the first valve core outlet (2-9-4) and opens the second valve core outlet (2-5-1), allowing the refrigerant inlet (2-9-1) to communicate with the second valve core outlet (2-5-1) through the inner cavity (2-9-5). When the valve core (2-7) moves to the first position, it blocks the first valve core outlet (2-9-4) and opens the second valve core outlet (2-5-1). When the valve core (2-7) is in the second position, the second valve core outlet (2-5-1) is blocked and the first valve core outlet (2-9-4) is opened, so that the refrigerant inlet (2-9-1) is connected to the first valve core outlet (2-9-4) through the inner cavity (2-9-5); when the valve core (2-7) moves to the third position, it simultaneously opens the first valve core outlet (2-9-4) and the second valve core outlet (2-5-1), so that the refrigerant inlet (2-9-1) is connected to both the first valve core outlet (2-9-4) and the second valve core outlet (2-5-1) through the inner cavity (2-9-5).

2. The three-way valve according to claim 1, characterized in that: It also includes a rotating component (2-3), which is fixed relative to the valve core (2-7) in the circumferential direction; the driving mechanism drives the rotating component (2-3) to rotate, so that the rotating component (2-3) drives the valve core (2-7) to rotate; The rotating member (2-3) has a groove (231) extending along the center line (a) of the second threaded portion at one end. A transmission part (2-4) is fixed on the valve core (2-7). The transmission part (2-4) is used to insert into the groove (231) through the opening (2311) of the groove and engage with the groove (231) so that the valve core (2-7) and the rotating member (2-3) are kept relatively fixed in the circumferential direction by the transmission part (2-4). The transmission part (2-4) and the groove (231) are also slidably engaged in the direction of the center line (a) of the second threaded portion. The three-way valve also includes a first elastic member (2-2) for applying force to the rotating member (2-3) so that the bottom surface of the groove (231) abuts against the transmission part (2-4).

3. The three-way valve according to claim 2, characterized in that: The valve body is provided with a valve cover (2-1), the valve cover (2-1) has an annular sidewall (211), the rotating member (2-3) is sleeved on the inner side of the annular sidewall (211) and rotates in cooperation with the annular sidewall (211); wherein, the annular sidewall (211) is also used to guide the movement of the rotating member (2-3) in the direction of the center line (a) of the second threaded portion.

4. The three-way valve according to claim 3, characterized in that: The first elastic element (2-2) is disposed between the bottom surface of the valve cover (2-1) and the rotating element (2-3). One end of the first elastic element (2-2) abuts against the bottom surface of the valve cover (2-1), and the other end of the first elastic element (2-2) abuts against the rotating element (2-3).

5. The three-way valve according to any one of claims 2-4, characterized in that: The first threaded portion (2-4-1) is provided on the transmission portion (2-4) so ​​as to be provided on the valve core (2-7) via the transmission portion (2-4).

6. The three-way valve according to claim 5, characterized in that: The transmission part (2-4) has an annular wall (242), the first threaded part (2-4-1) is an internal thread provided on the inner side of the annular wall (242); the second threaded part (2-5-3) is an external thread provided on the valve body.

7. The three-way valve according to any one of claims 2-4 and 6, characterized in that: The transmission part (2-4) is provided with a connection hole (241), and the valve core (2-7) is inserted into the connection hole (241).

8. The three-way valve according to any one of claims 1-4 and 6, characterized in that: The valve body has a valve shell (2-9) and a transmission engagement part (2-5). The valve shell (2-9) is hollow inside and has a first opening (291) at one end. The transmission engagement part (2-5) covers the first opening (291) and forms the inner cavity (2-9-5) between the two. The refrigerant inlet (2-9-1) and the first valve core outlet (2-9-4) are both located on the valve body (2-9), and the second valve core outlet (2-5-1) and the second threaded portion (2-5-3) are both located on the transmission mating portion (2-5).

9. The three-way valve according to claim 8, characterized in that: The transmission mating part (2-5) is columnar. A first annular flange (251) and a second annular flange (252) are spaced apart along the center line on the outer wall of the transmission mating part (2-5). An annular groove (253) is formed between the first annular flange (251) and the second annular flange (252). A protruding post (254) is formed on the side of the first annular flange (251) away from the second annular flange (252). The second threaded part (2-5-3) is provided on the protruding post (254). The transmission mating part (2-5) covers the first opening (291) through the first annular flange (251); the second annular flange (252) is located inside the valve housing (2-9) and is circumferentially sealed to the inner wall of the valve housing (2-9); a second refrigerant outlet (2-9-3) is provided on the inner wall of the valve housing (2-9) in the area opposite to the annular groove (253); the transmission mating part (2-5) has an internal through hole (2-5-2) penetrating both ends along the center line direction; the internal through hole (2-5-2) forms the second valve core outlet (2-5-1) at one end inside the inner cavity (2-9-5); and a refrigerant through hole (2-5-4) penetrating to the internal through hole (2-5-2) is provided at the bottom of the annular groove (253); The valve core (2-7) passes through the internal through hole (2-5-2) and exits the inner cavity (2-9-5). The valve core (2-7) is sealed to the end of the internal through hole (2-5-2) that is away from the second valve core outlet (2-5-1). The driving mechanism drives the valve core (2-7) to rotate by driving the end of the valve core (2-7) that exits the inner cavity (2-9-5).

10. An air conditioner, characterized in that: The three-way valve includes any one of claims 1-9.

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