Reversing valve

Abstract

The utility model relates to the technical field of valves, in particular to a reversing valve. The reversing valve comprises a valve body and a sensing assembly, a mounting groove is formed in the valve body and extends in the first preset direction, a first opening is formed in at least one end, in the first preset direction, of the mounting groove, and the first opening penetrates through the outer wall of the valve body. At least part of the sensing assembly is installed in the installation groove through the first opening, the sensing assembly comprises a sensing piece and a limiting piece which are detachably connected, and when the sensing assembly is inserted into the installation groove, the limiting piece is connected with the installation groove in a clamped mode. According to the reversing valve, the problem that an induction piece and a valve body on an existing reversing valve are complex to install is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of valves, in particular to a reversing valve. BACKGROUND

[0002] At present, a rotating reversing valve is usually arranged in a vehicle air conditioning system. The reversing valve comprises a valve body and a valve core. The valve core is rotatably installed in the valve body. The reversing valve connects different flow holes by rotation of the valve core to change the flow direction of refrigerant, so as to realize switching between cooling mode and heating mode of the air conditioning system.

[0003] In the related art, rotation of the valve core is controlled by a rotation stop block and a rotation stop groove. Whether the valve core is rotated to a position is detected by induction cooperation between an inductor and an inducted part. The inducted part is fixedly installed on the valve core, and the inductor is installed on the valve body. However, the installation of the inductor and the valve body is relatively complex, which reduces the assembly efficiency of the reversing valve. CONTENT OF THE UTILITY MODEL

[0004] Therefore, it is necessary to provide a reversing valve to solve the problem of complex installation of the inductor and the valve body in the prior art.

[0005] The present application provides a reversing valve. The reversing valve comprises a valve body and an induction assembly. The valve body is provided with an installation groove. The installation groove extends along a first preset direction. At least one end of the installation groove along the first preset direction is provided with a first opening. The first opening penetrates the outer wall of the valve body. At least part of the induction assembly is installed in the installation groove through the first opening. The induction assembly comprises an inductor and a limiting part which are detachably connected. When the induction assembly is inserted into the installation groove, the limiting part is clamped with the installation groove.

[0006] In one of the embodiments, the inner wall of the installation groove along a second preset direction is recessed to form a limiting hole in a direction away from the inside of the installation groove. The second preset direction is arranged at an angle with the first preset direction. A limiting protrusion is protruded on the limiting part along the second preset direction. The limiting protrusion extends into the limiting hole and is clamped with the limiting hole.

[0007] In one of the embodiments, the limiting part and the inductor surround a deformation space. The deformation space is located on the side of the limiting part away from the limiting protrusion. The limiting part has elasticity, so that the limiting part can be deformed into the deformation space under the action of external force.

[0008] In one of the embodiments, the limiting hole is arranged close to the first opening. After the limiting protrusion is clamped into the limiting hole, at least part of the limiting part extends out of the installation groove through the first opening.

[0009] In one of the embodiments, along the second preset direction, the outer wall of the induction assembly is limitedly matched with the inner wall of the mounting groove.

[0010] In one of the embodiments, the limiting member is matched with the induction member in a clamping manner.

[0011] In one of the embodiments, the outer wall of the induction member is inwardly recessed to form a positioning groove, the positioning groove comprises a first sub-groove and a second sub-groove, the first sub-groove and the second sub-groove are respectively arranged on the opposite two side walls of the induction member; the limiting member comprises a main plate, a first limiting plate and a second limiting plate, the first limiting plate and the second limiting plate are respectively connected to the opposite two sides of the main plate and form a U-shaped groove with the main plate, the U-shaped groove is sleeved on the outer periphery of the induction member, and the first limiting plate is clamped into the first sub-groove and the second limiting plate is clamped into the second sub-groove.

[0012] In one of the embodiments, the positioning groove further comprises a third sub-groove, the third sub-groove is arranged between the first sub-groove and the second sub-groove and is in communication with the first sub-groove and the second sub-groove respectively; the main plate is partially mounted in the third sub-groove, and along the depth direction of the third sub-groove, the main plate is arranged not higher than the groove opening of the third sub-groove.

[0013] In one of the embodiments, the mounting groove is provided with a second opening on one side along a third preset direction, the second opening is arranged through the outer wall of the valve body; wherein, the third preset direction is parallel to the second preset direction or is arranged at an angle.

[0014] In one of the embodiments, the second preset direction is the same as the third preset direction, and the width of the mounting groove at the second opening is greater than the hole diameter of the limiting hole.

[0015] In one of the embodiments, the reversing valve further comprises a valve core and a sensed member, the valve body is provided with a containing cavity and a plurality of flow-through holes, the valve core is rotatably mounted in the containing cavity for connecting different flow-through holes; wherein, the valve core is provided with a mounting hole at one end close to the mounting groove, the sensed member is mounted in the mounting hole, and the sensed member is magnetically matched with the induction member.

[0016] In one of the embodiments, the number of the mounting grooves is two, the two mounting grooves are arranged at intervals along the circumference of the valve body, and the induction assembly is mounted in each of the mounting grooves; the valve core has a first state and a second state, and in the first state and the second state, the sensed member is magnetically matched with a corresponding induction member.

[0017] In one embodiment, the inductor is configured as a permanent magnet.

[0018] Compared with the prior art, the reversing valve provided by the application can directly insert the inductor into the installation slot when installing the inductor, and the inductor is fixed in the installation slot by clamping between the limiting piece and the installation slot during the process of inserting the inductor into the installation slot. In this way, the whole installation process is relatively simple, and the assembly efficiency of the inductor can be greatly improved. Since the inductor and the limiting piece are detachably connected, they do not need to be fixed by welding, injection molding or adhesion, and the connection is convenient. Moreover, the inductor and the limiting piece can be individually machined and replaced, which is conducive to cost reduction. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0020] Figure 1 A cross-sectional view of the reversing valve of an embodiment provided by the application;

[0021] Figure 2 An exploded view of the partial structure of the reversing valve of an embodiment provided by the application;

[0022] Figure 3 A structural schematic view of the inductor assembly of an embodiment provided by the application;

[0023] Figure 4 A structural schematic view of the inductor of an embodiment provided by the application;

[0024] Figure 5 A structural schematic view of the limiting piece of an embodiment provided by the application;

[0025] Figure 6 A bottom view of the reversing valve of an embodiment provided by the application.

[0026] The meanings of the symbols in the drawings are as follows:

[0027] 100, reversing valve; 10, valve body; 101, mounting groove; 1011, first opening; 1012, second opening; 102, limiting hole; 103, accommodating cavity; 104, flow-through hole; 20, induction assembly; 201, deformation space; 202, positioning groove; 2021, first sub-groove; 2022, second sub-groove; 2023, third sub-groove; 203, U-shaped groove; 21, induction piece; 22, limiting piece; 221, limiting protrusion; 222, main plate; 223, first limiting plate; 224, second limiting plate; 30, valve core; 301, mounting hole; 40, inducted piece. DETAILED DESCRIPTION

[0028] In order to make the above objectives, features and advantages of the present application more clear and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings. In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be implemented in many different ways other than those described herein, and one of ordinary skill in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0029] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or there can be a middle component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or there can be a middle component. The terms "vertical", "horizontal", "upper", "lower", "left", "right", and similar expressions used in the description of the present application are for illustrative purposes only and do not indicate the only implementation.

[0030] In addition, the terms "first", "second", etc. are used only for descriptive purposes and should not be construed as indicating or implying relative importance or an indicated number of technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0031] In the present application, unless otherwise explicitly specified and limited, the "on", "under", "above" and "over" of the first feature to the second feature can be that the first feature is in direct contact with the second feature, or the first feature is indirectly in contact with the second feature through an intermediate medium. Moreover, the "on", "above" and "over" of the first feature to the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the first feature is horizontally higher than the second feature. The "under", "below" and "under" of the first feature to the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the first feature is horizontally lower than the second feature.

[0032] Unless otherwise defined, all technical and scientific terms used in the application's specification are intended to have the same meaning as commonly understood by one of ordinary skill in the art to which the application pertains. The terminology used in the application's specification is for describing particular embodiments only and is not intended to be limiting of the application. The use of the terms "and / or" includes a combination of one or more of the associated listed items.

[0033] At present, a rotary reversing valve is usually arranged in a vehicle air conditioning system, the reversing valve includes a valve body and a valve core, the valve core is rotatably installed in the valve body, and the reversing valve is connected with different flow holes through rotation of the valve core to change a flow direction of refrigerant, so as to realize switching of a cooling mode and a heating mode of the air conditioning system.

[0034] In the related art, rotation of the valve core is controlled by a rotation stopping block and a rotation stopping groove, and whether the valve core is rotated to a position is detected through induction cooperation between an inductor and an inducted part. The inducted part is fixedly installed on the valve core, and the inductor is installed on the valve body. However, the installation of the inductor and the valve body is relatively complex, which reduces assembly efficiency of the reversing valve.

[0035] Please refer to Figures 1-6 To solve the problem that the inductor and the valve body are relatively complex to install on the existing reversing valve, the application provides a reversing valve 100, which includes a valve body 10 and a valve core 30. The valve body 10 is provided with a containing cavity 103 and a plurality of flow holes 104. The valve core 30 is rotatably installed in the containing cavity 103 and is used to connect the different flow holes 104.

[0036] Here, the number of the flow holes 104 can be two, three, four or more, that is, the reversing valve 100 provided by the application can be a two-way valve, a three-way valve, a four-way valve or other types of multi-way valve. For the convenience of description, the reversing valve 100 is taken as a four-way valve for example in the application.

[0037] Specifically, in the embodiment, the number of the flow holes 104 is four, and the four flow holes 104 are uniformly and circumferentially distributed along the valve body 10, that is, the four flow holes 104 are distributed in a cross shape, and an included angle between adjacent two flow holes 104 is 90°. Further, the valve core 30 is provided with two arc-shaped flow channels. With rotation of the valve core 30, the two flow channels can be connected with different flow holes 104 respectively, so as to change the flow direction of the refrigerant and switch the cooling mode and the heating mode of the entire air conditioning system.

[0038] In an embodiment, as shown in Figure 1 and Figure 2As shown, the reversing valve 100 further comprises the induction assembly 20 and the inductive element 40. The valve body 10 is provided with a mounting groove 101 extending along a first preset direction. At least one end of the mounting groove 101 along the first preset direction is provided with a first opening 1011 penetrating through the outer wall of the valve body 10. The inner wall of the mounting groove 101 along a second preset direction is recessed to form a limiting hole 102 away from the interior of the mounting groove 101. The second preset direction is arranged at an angle with the first preset direction. At least part of the induction assembly 20 is mounted in the mounting groove 101 through the first opening 1011. The induction assembly 20 comprises a detachably connected inductive element 21 and a limiting element 22. When the induction assembly 20 is inserted into the mounting groove 101, the limiting element 22 is clamped with the mounting groove 101. Specifically, the limiting element 22 is protruded to form a limiting protrusion 221 along the second preset direction. The limiting protrusion 221 extends into the limiting hole 102 and is clamped with the limiting hole 102.

[0039] It can be understood that, when the induction assembly 20 is mounted, the induction assembly 20 can be directly inserted into the mounting groove 101. During the process of inserting the induction assembly 20 into the mounting groove 101, the clamping of the limiting element 22 and the mounting groove 101 achieves the fixation of the induction assembly 20 in the mounting groove 101. In this way, the whole installation process is relatively simple, which can greatly improve the assembly efficiency of the induction assembly 20. Moreover, the cooperation of the limiting protrusion 221 and the limiting hole 102 is relatively simple, which can further reduce the processing and assembly difficulty. Since the inductive element 21 and the limiting element 22 are detachably connected, they do not need to be fixed by welding or injection molding or adhesion, which is convenient to connect. Moreover, it is convenient for the separate processing and separate replacement of the inductive element 21 and the limiting element 22, which is conducive to reducing the cost.

[0040] Further, the limiting element 22 and the inductive element 21 enclose a deformation space 201. The deformation space 201 is located on the side of the limiting element 22 away from the limiting protrusion 221. The limiting element 22 has elasticity, so that the limiting element 22 can be deformed into the deformation space 201 under the action of external force. In this way, the limiting element 22 can drive the limiting protrusion 221 to move synchronously, so as to reduce or eliminate the interaction force between the limiting protrusion 221 and the inner wall of the mounting groove 101, thereby facilitating the insertion of the induction assembly 20. Moreover, when the induction assembly 20 moves to a predetermined position in the mounting groove 101, the limiting protrusion 221 can extend into the limiting hole 102, thereby achieving the clamping cooperation of the two, preventing the induction assembly 20 from being separated from the mounting groove 101.

[0041] The limiting hole 102 is preferably arranged close to the first opening 1011, and after the limiting protrusion 221 is clamped into the limiting hole 102, at least part of the limiting member 22 extends out of the mounting groove 101 through the first opening 1011. In this way, by applying force to the part of the limiting member 22 extending out of the mounting groove 101, the limiting member 22 is forced to deform, so that the limiting protrusion 221 is disengaged from the limiting hole 102, thereby facilitating the disassembly of the induction assembly 20.

[0042] It should be noted that the external force for forcing the limiting member 22 to deform can be an action force applied by hand or an action force applied by other external tools, and of course can also be an action force applied by the inner wall of the mounting groove 101.

[0043] It should be further noted that the first preset direction is the length direction of the mounting groove 101, and can also correspond to the length direction or the width direction of the valve body 10. Taking the case where the first preset direction is the length direction of the valve body 10 as an example, the second preset direction can be the width direction or the height direction of the valve body 10, and the second preset direction is preferably set as the height direction of the valve body 10 in the embodiment. Of course, the first preset direction and the second preset direction in the present application are not limited to the forms in the embodiment.

[0044] In an embodiment, along the second preset direction, the outer wall of the induction assembly 20 is limited and matched with the inner wall of the mounting groove 101. In this way, the induction assembly 20 can be prevented from shaking along the second preset direction, so that the limiting protrusion 221 is disengaged from the limiting hole 102, and the reliability of the installation of the induction assembly 20 is greatly improved.

[0045] Further, other outer walls of the induction assembly 20 also abut and limit with the inner wall of the mounting groove 101, so as to further reduce the probability of shaking of the induction assembly 20, and the stability is higher. Here, the outer wall of the induction assembly 20 and the inner wall of the mounting groove 101 can be gap matched, so as to reduce the installation difficulty of the induction assembly 20.

[0046] In order to facilitate the connection between the limiting member 22 and the induction member 21, in an embodiment, the limiting member 22 is clamped and matched with the induction member 21. In this way, the disassembly of the limiting member 22 and the induction member 21 is facilitated, and the reliability of the connection between the two is ensured.

[0047] Specifically, as shown in FIG. 6, the limiting member 22 is clamped and matched with the induction member 21 through the limiting protrusion 221 and the limiting hole 102. Figures 3-5As shown, the outer wall of the inductor 21 is inwardly recessed to form a positioning groove 202, which includes a first sub-groove 2021 and a second sub-groove 2022, and the first sub-groove 2021 and the second sub-groove 2022 are respectively arranged on the opposite two side walls of the inductor 21. The limiting member 22 includes a main plate 222, a first limiting plate 223 and a second limiting plate 224, the first limiting plate 223 and the second limiting plate 224 are respectively connected to the opposite two sides of the main plate 222, and the main plate 222, the first limiting plate 223 and the second limiting plate 224 together form a U-shaped groove 203. The U-shaped groove 203 is sleeved on the outer periphery of the inductor 21, and the first limiting plate 223 is clamped into the first sub-groove 2021, and the second limiting plate 224 is clamped into the second sub-groove 2022. The limiting protrusion 221 is arranged on the main plate 222.

[0048] It can be understood that after the first limiting plate 223 is inserted into the first sub-groove 2021, the first limiting plate 223 is limitedly matched with the opposite two side walls of the first sub-groove 2021 along the two side walls in the length direction of the inductor 21. Similarly, after the second limiting plate 224 is inserted into the second sub-groove 2022, the second limiting plate 224 is limitedly matched with the opposite two side walls of the second sub-groove 2022 along the two side walls in the length direction of the inductor 21. In this way, the positioning of the inductor 21 and the limiting member 22 in the length direction is realized, and when the inductive assembly 20 is inserted into the mounting groove 101, the inner wall of the mounting groove 101 can stop the limiting member 22, preventing the limiting member 22 from being separated, causing the clamping between the limiting member 22 and the inductor 21 to fail, thereby effectively improving the reliability of the connection between the limiting member 22 and the inductor 21.

[0049] Here, the thickness of the first limiting plate 223 and the second limiting plate 224 is preferably less than the depth of the first sub-groove 2021 and the second sub-groove 2022, so that the cooperation between the inductive assembly 20 and the inner wall of the mounting groove 101 is mainly realized by the outer wall of the inductor 21, that is, the contact area between the inductive assembly 20 and the mounting groove 101 is increased, thereby improving the stability of the installation.

[0050] Further, as Figure 3 and Figure 4As shown, the positioning groove 202 further comprises a third sub-groove 2023, which is arranged between the first sub-groove 2021 and the second sub-groove 2022 and communicates with the first sub-groove 2021 and the second sub-groove 2022 respectively. The main plate 222 is partially installed in the third sub-groove 2023, and along the depth direction of the third sub-groove 2023, the main plate 222 is not higher than the groove opening of the third sub-groove 2023. In this way, during the installation of the induction assembly 20 in the installation groove 101, the contact between the main plate 222 and the inner wall of the installation groove 101 can be effectively reduced, the deformation amount required by the main plate 222 can be reduced, thereby reducing the difficulty of the limiting protrusion 221 being inserted into the limiting hole 102, and the assembly efficiency of the induction assembly 20 is improved. Moreover, the induction assembly 20 is matched with the inner wall of the installation groove 101 through the outer wall of the induction piece 21, that is, the contact area between the induction assembly 20 and the installation groove 101 is increased, thereby improving the stability of the installation.

[0051] In an embodiment, as shown in Figure 1 and Figure 2 As shown, the installation groove 101 is provided with a second opening 1012 on one side along the third preset direction, and the second opening 1012 is arranged through the outer wall of the valve body 10. The third preset direction is parallel to or at an angle to the second preset direction. In this way, the provision of the second opening 1012 is conducive to reducing the processing difficulty of the installation groove 101 and the internal limiting hole 102, thereby improving the processing efficiency.

[0052] It should be noted that the third preset direction can be arranged as the height direction of the valve body 10.

[0053] Further, in an embodiment, the second preset direction is the same as the third preset direction, and the width of the installation groove 101 at the second opening 1012 is greater than the hole diameter of the limiting hole 102. In this way, the limiting hole 102 can be processed through the second opening 1012, further reducing the processing difficulty.

[0054] Specifically, the installation groove 101 can be configured as a T-shaped groove or a dovetail groove, and the shape of the induction piece 21 is the same as that of the installation groove 101. In this way, the installation groove 101 can limit the induction piece 21, and ensure that the induction piece 21 can only move along the first preset direction, i.e., the length direction of the installation groove 101.

[0055] In an embodiment, as shown in Figure 1 As shown, the valve core 30 is provided with a mounting hole 301 at one end close to the installation groove 101, and the induction piece 40 is installed in the mounting hole 301, thereby realizing the fixed connection between the valve core 30 and the induction piece 40, so that the induction piece 40 can change its position relative to the valve body 10 with the rotation of the valve core 30.

[0056] The sensed component 40 and the sensing component 21 cooperate by magnetic induction. Since the mounting slot 101 and the accommodating chamber 103 are not connected to each other, the sensing component 21 located in the mounting slot 101 can easily detect whether the sensed component 40 located in the accommodating chamber 103 rotates after receiving a system reversing command through magnetic induction. If rotation occurs, corresponding signal feedback can be obtained, thereby ensuring the reliability of the reversing valve 100 during operation. In this case, the number of mounting slots 101 and the number of sensing components 20 in the mounting slot 101 can be set to one.

[0057] Specifically, the induced component 40 is configured as a permanent magnet, which can ensure the stability of the induced component 40 during long-term operation, and does not require external power supply, thereby reducing energy consumption and maintenance costs.

[0058] Since the reversing valve 100 in this embodiment has both a cooling mode and a heating mode, the valve core 30 has a first state and a second state. The valve core 30 is defined as being in the first state in the cooling mode and in the second state in the heating mode. The valve core 30 must be in position in both states.

[0059] In order to detect the position of the valve core 30 in the first state and the second state, in one embodiment, as shown in FIG. Figure 6 As shown, there are two mounting grooves 101, which are spaced apart along the circumference of the valve body 10, and an induction component 20 is installed in each mounting groove 101, so that in the first state and the second state, the induced part 40 can cooperate with a corresponding induction part 21 by magnetic induction.

[0060] Here, the positions of the two mounting grooves 101 correspond to the positions where the valve core 30 is in the reversing position, and since the valve core 30 usually rotates 90 degrees to achieve reversal, the two mounting grooves 101 can be arranged vertically.

[0061] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0062] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of patent protection for the present application shall be determined by the appended claims.

Claims

1. A reversing valve characterized by comprising: The valve body (10) is provided with a mounting groove (101) extending along a first preset direction, and a first opening (1011) is arranged at least at one end of the mounting groove (101) along the first preset direction and penetrates the outer wall of the valve body (10); At least part of the induction assembly (20) is mounted in the mounting groove (101) through the first opening (1011), and the induction assembly (20) comprises a detachably connected induction piece (21) and a limiting piece (22), and when the induction assembly (20) is inserted into the mounting groove (101), the limiting piece (22) is clamped with the mounting groove (101).

2. The reversing valve of claim 1, wherein The inner wall of the mounting groove (101) along a second preset direction is recessed to form a limiting hole (102) away from the inside of the mounting groove (101), and the second preset direction is arranged at an angle with the first preset direction; The limiting piece (22) is protruded along the second preset direction to form a limiting protrusion (221), which extends into the limiting hole (102) and is clamped with the limiting hole (102).

3. The reversing valve of claim 2, wherein The limiting piece (22) and the induction piece (21) form a deformation space (201), which is located on the side of the limiting piece (22) away from the limiting protrusion (221), and the limiting piece (22) has elasticity so that it can deform into the deformation space (201) under external force.

4. The reversing valve of claim 2, wherein The limiting hole (102) is arranged close to the first opening (1011), and after the limiting protrusion (221) is clamped into the limiting hole (102), at least part of the limiting piece (22) extends out of the mounting groove (101) through the first opening (1011).

5. The reversing valve of claim 2, wherein Along the second preset direction, the outer wall of the induction assembly (20) is limitedly matched with the inner wall of the mounting groove (101).

6. The reversing valve of claim 1, wherein The limiting piece (22) is clamped and matched with the induction piece (21).

7. The reversing valve according to claim 6, characterized in that: The outer wall of the induction piece (21) is recessed inward to form a positioning groove (202), and the positioning groove (202) comprises a first sub-groove (2021) and a second sub-groove (2022), and the first sub-groove (2021) and the second sub-groove (2022) are arranged on the opposite two side walls of the induction piece (21) respectively; The limiting piece (22) comprises a main plate (222), a first limiting plate (223) and a second limiting plate (224), the first limiting plate (223) and the second limiting plate (224) are connected to the opposite two sides of the main plate (222) respectively, and a U-shaped groove (203) is formed around the main plate (222), the U-shaped groove (203) is sleeved on the outer periphery of the induction piece (21), and the first limiting plate (223) is clamped into the first sub-groove (2021), and the second limiting plate (224) is clamped into the second sub-groove (2022).

8. The reversing valve of claim 7, wherein, The positioning groove (202) further comprises a third sub-groove (2023) arranged between the first sub-groove (2021) and the second sub-groove (2022) and communicating with the first sub-groove (2021) and the second sub-groove (2022) respectively; The main plate (222) is partially installed in the third sub-groove (2023), and the main plate (222) is not higher than the groove opening of the third sub-groove (2023) in the depth direction of the third sub-groove (2023).

9. The diverter valve of claim 2, wherein, The mounting groove (101) is provided with a second opening (1012) on one side of the third preset direction, and the second opening (1012) penetrates the outer wall of the valve body (10); Wherein, the third preset direction is parallel to or at an angle to the second preset direction.

10. The reversing valve of claim 9, wherein, The second preset direction is the same as the third preset direction, and the width of the mounting groove (101) at the second opening (1012) is greater than the hole diameter of the limiting hole (102).

11. A reversing valve according to any one of claims 1-10, characterized in that The reversing valve further comprises a valve core (30) and a sensed part (40), the valve body (10) is provided with a containing cavity (103) and a plurality of flow-through holes (104), the valve core (30) is rotatably installed in the containing cavity (103), and is used for connecting different flow-through holes (104); Wherein, the valve core (30) is provided with a mounting hole (301) near one end of the mounting groove (101), the sensed part (40) is installed in the mounting hole (301), and the sensed part (40) is magnetically inductive with the inductive part (21).

12. The reversing valve of claim 11, wherein, The number of the mounting groove (101) is two, the two mounting grooves (101) are arranged at intervals along the circumference of the valve body (10), and the inductive assembly (20) is installed in each mounting groove (101); The valve core (30) has a first state and a second state, and in the first state and the second state, the sensed part (40) is magnetically inductive with a corresponding inductive part (21).

13. The diverter valve of claim 11, wherein, The sensed part (40) is configured as a permanent magnet.

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