Protective sleeve assembly, electronic expansion valve and air conditioner

Abstract

The utility model belongs to the technical field of air conditioners, and discloses a protective sleeve assembly, an electronic expansion valve and an air conditioner. The protective sleeve assembly comprises a first protective sleeve and a second protective sleeve, wherein the first protective sleeve is matched together in an opening and closing mode to form a first containing cavity capable of at least containing part of the valve body part; a pipe passing hole and a wire passing hole are formed in the first protective sleeve, the pipe passing hole is used for penetrating a refrigerant pipeline, and the wire passing hole is used for penetrating a power supply circuit; and the second protective sleeve is detachably arranged on the first protective sleeve in a sleeving mode, and a second containing cavity capable of at least containing part of the valve main body part is formed in the second protective sleeve. The first protective sleeve is covered with the second protective sleeve, so that a relatively closed cavity structure is formed between the first protective sleeve and the second protective sleeve, the electronic expansion valve is effectively prevented from being corroded due to being exposed in the environment for a long time, the service life of the electronic expansion pipe is prolonged, and the electronic expansion valve is convenient to overhaul while being comprehensively protected.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, and in particular to a protective sleeve assembly, an electronic expansion valve, and an air conditioner. Background Technology

[0002] In the field of air conditioning technology, the electronic expansion valve is a throttling component widely used in air conditioners. Controlled by a coil mounted on it, its main functions are to regulate refrigerant flow and reduce pressure. The electronic expansion valve coil is typically installed in the refrigeration piping, and prolonged exposure to the environment can lead to corrosion. Utility Model Content

[0003] The technical problem to be solved by this utility model is that electronic expansion valves are prone to corrosion when exposed to the environment for a long time. Therefore, a protective sleeve assembly, an electronic expansion valve, and an air conditioner are provided.

[0004] This utility model aims to provide a protective sleeve assembly for protecting an electronic expansion valve and its connection to a refrigerant pipeline. The electronic expansion valve includes a valve body and a coil. The valve body is connected to the refrigerant pipeline, and the coil is connected to a power supply line. The protective sleeve assembly includes:

[0005] A first protective sleeve is closable and fits together to form a first cavity that can accommodate at least a portion of the valve body. The first protective sleeve has a pipe hole and a wire hole, the pipe hole being used for passing through the refrigerant pipe and the wire hole being used for passing through the power supply line.

[0006] The second protective sleeve is detachably fitted onto the first protective sleeve, and the interior of the second protective sleeve has a second cavity that can accommodate at least a portion of the coil portion.

[0007] In some embodiments, the first protective sleeve and the second protective sleeve are threaded together; wherein the outer wall surface of the first protective sleeve has an external thread structure, and the inner wall surface of the second protective sleeve has an internal thread structure.

[0008] In some embodiments, the first protective sleeve includes a first half-shell and a second half-shell. The outer wall surface of the first half-shell is provided with a first external thread segment, and the outer wall surface of the second half-shell is provided with a second external thread segment. When the first half-shell and the second half-shell are closed, the first external thread segment and the second external thread segment together form an annular external thread structure.

[0009] The internal thread structure is configured as an annular internal thread structure adapted to the annular external thread structure.

[0010] In some embodiments, the first protective sleeve includes a first half-shell and a second half-shell, wherein a portion of the through-hole and the wire through-hole are formed on the first half-shell, and another portion of the through-hole and the wire through-hole are formed on the second half-shell.

[0011] When the first half-shell and the second half-shell are joined together, a portion of the hole surface of the through-hole and the through-wire hole formed on the first half-shell and another portion of the hole surface of the through-hole and the through-wire hole formed on the second half-shell are joined together to form the through-hole and the through-wire hole.

[0012] In some embodiments, the first half-shell includes a first sidewall and a first bottom wall, the second half-shell includes a second sidewall and a second bottom wall, a portion of the wire-passing hole is formed at the opening end of the first bottom wall, and another portion of the wire-passing hole is formed at the opening end of the second bottom wall;

[0013] The through-hole includes a first through-hole and a second through-hole. A portion of the hole surface of the first through-hole is formed at the opening and closing end of the first bottom wall, and another portion of the hole surface of the first through-hole is formed at the opening and closing end of the second bottom wall. A portion of the hole surface of the second through-hole is formed at the opening and closing end of the first side wall, and another portion of the hole surface of the second through-hole is formed at the opening and closing end of the second side wall.

[0014] In some embodiments, the first half-shell and the second half-shell are provided with a movable connection structure at one end opposite to each other, and a detachable connection structure at the other end opposite to each other.

[0015] In some embodiments, the active connection structure is an active connection structure or a hinged structure;

[0016] And / or, the detachable connection structure is a snap-fit ​​structure.

[0017] In some embodiments, the active connection structure has a first connection segment, a second connection segment, and a third connection segment, wherein the second connection segment is located between the first connection segment and the third connection segment, and the second connection segment is a flexible segment; the first connection segment is connected to the first sidewall, and the third connection segment is connected to the second sidewall.

[0018] In some embodiments, both the first protective sleeve and the second protective sleeve are constructed as cylindrical shells with one open end and one closed end, and the open ends of the two are detachably fitted together.

[0019] In some embodiments, an electronic expansion valve is provided, comprising:

[0020] The valve body is connected to the refrigerant pipeline, and the coil is connected to the power supply line.

[0021] The aforementioned protective case components;

[0022] The first cavity accommodates at least a portion of the valve body portion, and the second cavity accommodates at least a portion of the coil portion.

[0023] In some embodiments, an electronic expansion valve is provided, comprising:

[0024] The valve body includes a coil section, a refrigerant inlet pipe connection end, and a refrigerant outlet pipe connection end. The coil section is connected to a power supply line, the refrigerant inlet pipe connection end is connected to the outlet end of the refrigerant pipeline, and the refrigerant outlet pipe connection end is connected to the inlet end of the refrigerant pipeline.

[0025] A coil section, which is connected to a power supply line;

[0026] The aforementioned protective case components;

[0027] The power supply line passes through the through hole, the refrigerant inlet pipe connection end passes through the second through hole, and the refrigerant outlet pipe connection end passes through the first through hole.

[0028] In some embodiments, an air conditioner is provided, comprising:

[0029] The aforementioned electronic expansion valve.

[0030] The solution provided by this utility model has the following advantages compared with the prior art:

[0031] By opening the first protective sleeve to surround the electronic expansion valve, and then closing it to fix it to the outside of the electronic expansion valve, the cavity formed inside the second protective sleeve provides space for the electronic expansion valve. The second protective sleeve is then placed over the opening on the upper side of the first protective sleeve, creating a relatively closed cavity structure between the first and second protective sleeves. This effectively prevents corrosion of the electronic expansion valve due to prolonged exposure to the environment, extending the service life of the electronic expansion tube. Furthermore, the first and second protective sleeves are vertically aligned, surrounding the lower, circumferential, and upper sides of the electronic expansion valve from bottom to top, providing comprehensive protection while facilitating maintenance. When maintenance is required, simply removing the second protective sleeve from the first protective sleeve allows access to the coil section of the internal electronic expansion valve, making maintenance extremely convenient. Attached Figure Description

[0032] The accompanying drawings, as part of this utility model, are used to provide a further understanding of the present utility model. The illustrative embodiments and descriptions of the present utility model are used to explain the present utility model, but do not constitute an undue limitation of the present utility model. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0033] Figure 1 This is a schematic diagram of the structure of the protective sleeve assembly (with the first protective sleeve and the second protective sleeve connected) shown in an embodiment of the present invention;

[0034] Figure 2 This is a cross-sectional structural diagram of the protective sleeve assembly according to an embodiment of the present utility model;

[0035] Figure 3 This is one of the structural schematic diagrams of the first protective sleeve shown in the embodiment of this utility model;

[0036] Figure 4 This is the second schematic diagram of the structure of the first protective sleeve shown in this embodiment of the present invention;

[0037] Figure 5 This is the third schematic diagram of the structure of the first protective sleeve shown in this embodiment of the utility model;

[0038] Figure 6 This is the fourth schematic diagram of the structure of the first protective sleeve shown in this embodiment of the present invention;

[0039] Figure 7 This is one of the structural schematic diagrams of the second protective sleeve shown in the embodiments of this utility model;

[0040] Figure 8 This is the second schematic diagram of the structure of the second protective sleeve shown in this embodiment of the present invention;

[0041] Figure 9 This is a cross-sectional view of the protective sleeve assembly shown in an embodiment of this utility model;

[0042] Figure 10 This is a cross-sectional view of the electronic expansion valve shown in an embodiment of this utility model.

[0043] In the diagram: 1-First protective sleeve, 101-First cavity, 102-Through hole, 1021-First through hole, 1022-Second through hole, 103-First external thread section, 104-Second external thread section, 105-First half-shell, 1051-First side wall, 1052-First bottom wall, 106-Second half-shell, 1061-Second side wall, 1062-Second bottom wall, 107-Wire through hole, 2-Electronic expansion valve, 201-Coil section, 2011-Power supply line, 202-Refrigerant inlet pipe connection end, 203-Refrigerant outlet pipe connection end, 5-Second protective sleeve, 501-Internal thread structure, 502-Second cavity, 6-Modible connection structure, 601-First connecting section, 602-Second connecting section, 603-Third connecting section, 7-Detachable connection structure.

[0044] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0045] In the description of this utility model, it should be noted that the terms "inner" and "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0046] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "contact," and "communication" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0047] In the field of air conditioning technology, the electronic expansion valve is a throttling component widely used in air conditioners. Controlled by a coil mounted on it, its main functions are to regulate refrigerant flow and reduce pressure. The electronic expansion valve coil is typically installed in the refrigeration piping, and prolonged exposure to the environment can lead to corrosion.

[0048] Based on this technical problem, the following embodiments are proposed.

[0049] Example 1

[0050] like Figure 1-2As shown in Figures 9-10, this embodiment proposes a protective sleeve assembly for protecting the electronic expansion valve 2 and its connection to the refrigerant pipeline. The electronic expansion valve 2 includes a valve body and a coil 201. The valve body is connected to the refrigerant pipeline, and the coil 201 is connected to the power supply line 2011. The protective sleeve assembly includes:

[0051] The first protective sleeve 1 is openable and closable together to form a first cavity 101 that can accommodate at least part of the valve body; the first protective sleeve 1 has a pipe hole 102 and a wire hole 107 formed on it, the pipe hole 102 is used to pass through the refrigerant pipe, and the wire hole 107 is used to pass through the power supply line 2011.

[0052] The second protective sleeve 5 is detachably fitted onto the first protective sleeve 1, and the interior of the second protective sleeve 5 has a second cavity 502 that can accommodate at least a portion of the coil portion 201.

[0053] In this embodiment, by opening the first protective sleeve 1 to surround the valve body of the electronic expansion valve 2, and then closing the first protective sleeve 1 to fix it to the outside of the valve body of the electronic expansion valve 2, the first cavity 101 formed inside the first protective sleeve 1 provides a space for accommodating the valve body of the electronic expansion valve 2. Then, the second protective sleeve 5 is placed over the opening on the upper side of the first protective sleeve 1, so that the first protective sleeve 1 and the second protective sleeve 5 form a relatively closed cavity structure. This effectively prevents the electronic expansion valve 2 from corroding due to prolonged exposure to the environment, extending the service life of the electronic expansion tube 2. Simultaneously, the first protective sleeve 1... The protective sleeve 1 and the second protective sleeve 5 are arranged vertically. The first protective sleeve 1 forms a protective barrier for the bottom and periphery of the valve body. The second protective sleeve 5, as the top component in the protective sleeve assembly, forms a protective barrier for the top and periphery of the coil part 201. Thus, the first protective sleeve 1 and the second protective sleeve 5 surround the bottom, periphery and top of the electronic expansion valve 2 from bottom to top, so that the electronic expansion valve 2 is protected in all directions and is easy to maintain. When the electronic expansion valve 2 needs to be maintained, the second protective sleeve 5 can be removed from the first protective sleeve 1 to access the coil part 201 of the electronic expansion valve 2 inside, which makes the maintenance operation extremely convenient.

[0054] In this embodiment, when the first protective sleeve 1 is closed outside the valve body, the through hole 102 and the through hole 107 provide passageways for the refrigerant pipeline and the power supply line 2011, respectively. By designing the through hole 102 and the through hole 107, the first protective sleeve 1, after being closed, forms a mutual support with the power supply line 2011 and the refrigerant pipeline. The first protective sleeve 1 can be more stably fixed outside the electronic expansion valve 2, and at the same time, it can reduce the vibration of the refrigerant pipeline caused by the compressor vibration to a certain extent.

[0055] The second protective sleeve 5 also enhances the closure of the first protective sleeve 1 after it is closed. That is, the second protective sleeve 5 plays a role in strengthening the seal of the first protective sleeve 1. The two can form a relatively sealed cavity structure without additional parts, and at the same time, they are easy to disassemble and assemble.

[0056] Optionally, in one implementation of this embodiment, such as Figure 2-6 As shown in Figure 8,

[0057] The first protective sleeve 1 and the second protective sleeve 5 are threaded together; wherein the outer wall surface of the first protective sleeve 1 has an external thread structure, and the inner wall surface of the second protective sleeve 5 has an internal thread structure 501.

[0058] In this embodiment, the first protective sleeve 1 and the second protective sleeve 5 are threaded together. When the second protective sleeve 5 is screwed on the first protective sleeve 1 from top to bottom, the threaded engagement between the two causes the first side wall 1051 and the second side wall 1061 to lock automatically, further improving the sealing performance between the two. At the same time, the threaded structure itself has sealing performance, so there is no need to use other sealing components such as tape to connect or seal between the shells.

[0059] Optionally, in one implementation of this embodiment, such as Figure 3-8 As shown,

[0060] The first protective sleeve 1 includes a first half shell 105 and a second half shell 106. The outer wall surface of the first half shell 105 is provided with a first external thread section 103, and the outer wall surface of the second half shell 106 is provided with a second external thread section 104. When the first half shell 105 and the second half shell 106 are closed, the first external thread section 103 and the second external thread section 104 together form an annular external thread structure.

[0061] The internal thread structure 501 is configured as an annular internal thread structure adapted to the annular external thread structure.

[0062] In this embodiment, the annular external thread structure can be a continuous annular external thread structure or a discontinuous annular external thread structure. The first half-shell 105 and the second half-shell 106 can be equally divided half-shell structures or unequally divided half-shell structures. When the second protective sleeve 5 is screwed from top to bottom onto the first protective sleeve 1, the threaded engagement between the two causes the first sidewall 1051 and the second sidewall 1061 to automatically lock together, further improving the sealing performance between the two. At the same time, the thread structure itself has sealing performance, eliminating the need to use other sealing components such as tape to connect or seal between the shells.

[0063] Optionally, in one implementation of this embodiment, such as Figure 5 , 6 As shown,

[0064] The first protective sleeve 1 includes a first half shell 105 and a second half shell 106. A portion of the hole surface of the first half shell 105 and the wire hole 107 are formed on the hole surface of the pipe hole 102 and the wire hole 107, and another portion of the hole surface of the second half shell 106 and the wire hole 102 are formed on the hole surface of the pipe hole 102 and the wire hole 107.

[0065] When the first half-shell 105 and the second half-shell 106 are joined together, a portion of the hole surface of the through hole 102 and the wire hole 107 formed on the first half-shell 105 and another portion of the hole surface of the through hole 102 and the wire hole 107 formed on the second half-shell 106 are joined together to form the through hole 102 and the wire hole 107.

[0066] In this embodiment, both the wire hole 107 and the pipe hole 102 are designed as a combination of two half holes to accommodate the opening and closing of the first half shell 105 and the second half shell 106.

[0067] The first half-shell 105 and the second half-shell 106 are arranged around the periphery of the electronic expansion valve 2. The wire hole 107 and the pipe hole 102 are aligned with the power supply line 2011 and the refrigerant line. At this time, the opening and closing ends of the first half-shell 105 and the second half-shell 106 are closed, so that the first half-shell 105 and the second half-shell 106 surround the outside of the electronic expansion valve 2. At the same time, the opposite half-holes change from a separated state to a merged state, forming a complete wire hole 107 and pipe hole 102, which directly surround the outside of the power supply line 2011 and the refrigerant line, thereby effectively protecting the periphery and lower part of the electronic expansion valve 2.

[0068] Optionally, in one implementation of this embodiment, such as Figure 5 , 6 As shown,

[0069] The first half-shell 105 includes a first side wall 1051 and a first bottom wall 1052, and the second half-shell 106 includes a second side wall 1061 and a second bottom wall 1062. A portion of the hole surface of the wire hole 107 is formed at the opening and closing end of the first bottom wall 1052, and another portion of the hole surface of the wire hole 107 is formed at the opening and closing end of the second bottom wall 1062.

[0070] The through-hole 102 includes a first through-hole 1021 and a second through-hole 1022. A portion of the hole surface of the first through-hole 1021 is formed at the opening and closing end of the first bottom wall 1052, and another portion of the hole surface of the first through-hole 1021 is formed at the opening and closing end of the second bottom wall 1062. A portion of the hole surface of the second through-hole 1022 is formed at the opening and closing end of the first side wall 1051, and another portion of the hole surface of the second through-hole 1022 is formed at the opening and closing end of the second side wall 1061.

[0071] In this embodiment, the first protective cover 1 is designed as a split protective cover consisting of a first half-shell 105 and a second half-shell 106, making it more convenient to assemble and disassemble the first protective cover 1 as a whole.

[0072] Specifically, by designing a movable connection between the first half-shell 105 and the second half-shell 106, the first protective sleeve 1 can be opened and closed. The first side wall 1051 and the second side wall 1061 have a movable connection at one end and an end opposite to the movable connection end, which is the opening and closing end. The first side wall 1051 and the second side wall 1061 are separated at the opening and closing end, and the first side wall 1051 and the second side wall 1061 are separated to the left and right, so that the first side wall 1051 and the second side wall 1061 surround the periphery of the electronic expansion valve 2. Then the opening and closing end is closed, so that the first side wall 1051 and the second side wall 1061 surround the outside of the electronic expansion valve 2. The first bottom wall 1052 and the second bottom wall 1062 are simultaneously merged at the lower position of the electronic expansion valve 2, thereby effectively protecting the periphery and lower position of the electronic expansion valve 2. Moreover, this design makes it convenient to install and remove the first protective sleeve 1 around the periphery of the electronic expansion valve 2.

[0073] Furthermore, the second protective sleeve 5 is an integral design. When the second protective sleeve 5 is connected to the first protective sleeve 1, the two together form a relatively closed cavity structure, which provides all-round protection for the electronic expansion valve 2. The second protective sleeve 5 itself also strengthens the closure between the first side wall 1051 and the second side wall 1061, and between the first bottom wall 1052 and the second bottom wall 1062. That is, the second protective sleeve 5 strengthens the sealing of the first protective sleeve 1. The two can form a relatively sealed cavity structure without additional parts, and are easy to disassemble and assemble.

[0074] Optionally, in one implementation of this embodiment, such as Figure 1-6 As shown,

[0075] The first half-shell 105 and the second half-shell 106 have a movable connecting structure 6 at one end opposite to each other, and a detachable connecting structure 7 at the other end opposite to each other.

[0076] Furthermore, the movable connection structure 6 is a movable connection structure or a hinged structure;

[0077] And / or, the detachable connection structure 7 is a snap-fit ​​structure.

[0078] Specifically, the movable connection structure 6 has a first connection segment 601, a second connection segment 602 and a third connection segment 603. The second connection segment 602 is located between the first connection segment 601 and the third connection segment 603, and the second connection segment 602 is a flexible segment. The first connection segment 601 is connected to the first sidewall 1051, and the third connection segment 603 is connected to the second sidewall 1061.

[0079] In this embodiment, the first sidewall 1051 and the second sidewall 1061 are movably connected by a movable connection structure 6. The detachable connection structure 7 uses a slot and a protrusion for engagement. The opening and closing end of the first sidewall 1051 is provided with a protrusion, and the opening and closing end of the second sidewall 1061 is provided with a slot that engages with the protrusion.

[0080] Taking the movable connection structure 6 as an example, the first sidewall 1051 and the second sidewall 1061 can open and close at any angle within the deformation limit of the movable connection structure. By engaging the card protrusion in the card slot, a closed connection between the first sidewall 1051 and the second sidewall 1061 is achieved.

[0081] Preferably, the second connecting segment 602 is a flexible or elastic arc-shaped shell structure. It is connected to the second side wall 1061 through the first connecting segment 601 and to the first side wall 1051. This allows the movable connecting structure 6 as a whole to connect the first side wall 1051 and the second side wall 1061, enabling the first side wall 1051 and the second side wall 1061 to open and close at any angle within the deformation limit of the movable connecting structure. When the first side wall 1051 and the second side wall 1061 are open, the second connecting segment 602 deforms under force. When the first side wall 1051 and the second side wall 1061 are closed, the second connecting segment 602 recovers its deformation without being subjected to force, further increasing the ease of opening and closing between the first side wall 1051 and the second side wall 1061.

[0082] Optionally, in one implementation of this embodiment, such as Figure 1-8 As shown,

[0083] Both the first protective sleeve 1 and the second protective sleeve 5 are constructed as cylindrical shells with one end open and the other end closed, and the open ends of the two are detachably fitted together.

[0084] In this embodiment, the first sidewall 1051 and the second sidewall 1061 are designed as semi-cylindrical shells, and the first bottom wall 1052 and the second bottom wall 1062 are designed as semi-cylindrical plates. The second protective sleeve 5 is designed as a cylindrical shell. The first sidewall 1051 and the second sidewall 1061 are separated at the opening and closing end, and the first sidewall 1051 and the second sidewall 1061 are separated to the left and right. The first sidewall 1051 and the second sidewall 1061 are wrapped around the periphery of the electronic expansion valve 2. Then the opening and closing end is closed, so that the first sidewall 1051 and the second sidewall 1061 form a cylindrical shell-shaped first protective sleeve 1. The first protective sleeve 1 surrounds the electronic expansion valve 2, providing all-around protection for its periphery. The first bottom wall 1052 and the second bottom wall 1062 merge at the lower part of the electronic expansion valve 2, forming a single circular plate, effectively protecting the lower part of the valve. The cylindrical shell-shaped second protective sleeve 5 can directly cover the first protective sleeve 1, which consists of the first side wall 1051 and the second side wall 1061, protecting the upper part of the valve and facilitating disassembly and assembly, thus making maintenance of the electronic expansion valve 2 convenient. After maintenance, simply screwing the second protective sleeve 5 back onto the first protective sleeve 1 restores the initial sealed state, making the operation simple and convenient.

[0085] Example 2

[0086] like Figure 1-10 As shown, this embodiment provides an electronic expansion valve, including:

[0087] The valve body includes a coil part 201, a refrigerant inlet pipe connection end 202, and a refrigerant outlet pipe connection end 203.

[0088] The aforementioned protective case components;

[0089] The first cavity contains at least a portion of the coil section 201, at least a portion of the refrigerant inlet pipe connection end 202, and at least a portion of the refrigerant outlet pipe connection end 203, while the second cavity contains at least a portion of the coil section 201.

[0090] Specifically, the coil section 201 is connected to the power supply line 2011, the refrigerant inlet pipe connection end 202 is connected to the outflow end of the refrigerant pipeline, and the refrigerant outlet pipe connection end 203 is connected to the inflow end of the refrigerant pipeline; the power supply line 2011 passes through the wire hole 107, the refrigerant inlet pipe connection end 202 passes through the second wire hole 1022, and the refrigerant outlet pipe connection end 203 passes through the first wire hole 1021.

[0091] In this embodiment, by opening the first protective sleeve 1 to surround the outside of the valve body, and then closing the first protective sleeve 1 to fix it to the outside of the electronic expansion valve 2, the cavity formed inside the second protective sleeve 1 provides space for the coil part 201. Then, the second protective sleeve 5 covers the opening 3 on the upper side of the first protective sleeve 1, so that the first protective sleeve 1 and the second protective sleeve 5 form a relatively closed cavity structure, which effectively prevents the electronic expansion valve 2 from corroding due to long-term exposure to the environment, and extends the service life of the electronic expansion tube 2. At the same time, the first protective sleeve 1 and the second protective sleeve 5 are arranged vertically, and by the first protective sleeve 1 and the second protective sleeve 5 surrounding the bottom, sides and top of the electronic expansion valve 2 from bottom to top, the electronic expansion valve 2 is protected in all directions and is easy to maintain. When the electronic expansion valve 2 needs to be maintained, the second protective sleeve 5 can be removed from the first protective sleeve 1 to access the coil part 201 of the electronic expansion valve 2 inside, making the maintenance operation extremely convenient.

[0092] When closing the first sidewall 1051 and the second sidewall 1061 in the first protective sleeve 1, the first sidewall 1051 and the second sidewall 1061 can be accurately positioned by aligning the wire hole 107 around the power supply line 2011, the first pipe hole 1021 around the refrigerant outlet pipe connection end 203, and the second pipe hole 1022 around the refrigerant inlet pipe connection end 202, without the need for additional positioning structures.

[0093] After the first sidewall 1051 and the second sidewall 1061 are closed, the wire hole 107, the first pipe hole 1021 and the second pipe hole 1022 formed allow the first protective sleeve 1 to be firmly fixed on the valve tube part 202 of the electronic expansion valve 2, so that the first protective sleeve 1 is tightly connected to the electronic expansion valve 2, and the first protective sleeve 1 is prevented from shaking due to insecure fixing and producing abnormal noise when vibration occurs.

[0094] The power supply line 2011 is connected to the main control board of the air conditioner. The main control board supplies power and controls the coil section 201 through the power supply line 2011.

[0095] Example 3

[0096] This embodiment provides an air conditioner, including:

[0097] The aforementioned electronic expansion valve.

[0098] In this embodiment, by opening the first protective sleeve 1 to surround the outside of the electronic expansion valve 2, and then closing the first protective sleeve 1 to fix it to the outside of the electronic expansion valve 2, the cavity formed inside the first protective sleeve 1 provides a space for accommodating the valve body. Then, the second protective sleeve 5 is covered at the opening on the upper side of the first protective sleeve 1, so that the first protective sleeve 1 and the second protective sleeve 5 form a relatively closed cavity structure, which effectively prevents the electronic expansion valve 2 from corroding due to long-term exposure to the environment, extends the service life of the electronic expansion tube 2, and thus extends the overall service life of the air conditioner. At the same time, the first protective sleeve 1 and the second protective sleeve 5 are arranged vertically, and the first protective sleeve 1 and the second protective sleeve 5 surround the lower, peripheral, and upper sides of the electronic expansion valve 2 from bottom to top, so that the electronic expansion valve 2 is protected in all directions and is easy to maintain. When the electronic expansion valve 2 needs to be maintained, the second protective sleeve 5 can be removed from the first protective sleeve 1 to access the coil part 201 of the electronic expansion valve 2 inside, making the maintenance operation extremely convenient.

[0099] In summary, the ingenious design of the protective case assembly lies in:

[0100] First, by opening the first protective sleeve to surround the outside of the electronic expansion valve, and then closing the first protective sleeve to fix it to the outside of the electronic expansion valve, the cavity formed inside the second protective sleeve provides space for the coil part. Then, the second protective sleeve covers the opening on the upper side of the first protective sleeve, so that the first and second protective sleeves form a relatively closed cavity structure, which effectively prevents the electronic expansion valve from corroding due to long-term exposure to the environment and extends the service life of the electronic expansion tube. At the same time, the first and second protective sleeves are arranged vertically, and by the first and second protective sleeves surrounding the lower, circumferential and upper sides of the electronic expansion valve from bottom to top, the electronic expansion valve is protected in all directions and is easy to maintain. When the electronic expansion valve needs to be maintained, the coil part of the electronic expansion valve inside can be accessed simply by removing the second protective sleeve from the first protective sleeve, making the maintenance operation extremely convenient.

[0101] Secondly, the second protective sleeve is an integral design. When the second protective sleeve is connected to the first protective sleeve, the two together form a relatively closed cavity structure, which provides all-round protection for the electronic expansion valve. The second protective sleeve itself also strengthens the closure between the first side wall and the second side wall. That is, the second protective sleeve strengthens the sealing of the first protective sleeve. The two can form a relatively sealed cavity structure without additional parts, and are easy to disassemble and assemble.

[0102] Third, the design of the wire and pipe holes allows the first protective sleeve to be more stably fixed to the outside of the electronic expansion valve after it is closed, relying on the power supply line, refrigerant outlet pipe and refrigerant inlet pipe.

[0103] Fourth, the first and second half-shells are designed as semi-cylindrical shells, and the second protective sleeve is designed as a cylindrical shell. The first protective sleeve surrounds the outside of the electronic expansion valve, providing all-round protection for the periphery and lower part of the electronic expansion valve. The cylindrical shell-shaped second protective sleeve can be directly covered on the first protective sleeve, which not only protects the upper part of the electronic expansion valve, but also facilitates disassembly and assembly, making the maintenance of the electronic expansion valve convenient.

[0104] Fifth, the threaded engagement between the first and second protective sleeves automatically locks the first and second half-shells together, further enhancing the sealing performance between them. At the same time, the threaded structure itself has a sealing performance, eliminating the need for other sealing components such as tape to connect or seal between the shells.

[0105] It can be further understood that in this disclosure, "multiple" refers to two or more, and other quantifiers are similar. "And / or" describes the relationship between related objects, indicating that three relationships can exist; for example, A and / or B can represent: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. The singular forms "a," "the," and "the" are also intended to include the plural forms unless the context clearly indicates otherwise.

[0106] It is further understood that the terms "first," "second," etc., are used to describe various types of information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another, and do not indicate a specific order or degree of importance. In fact, the expressions "first," "second," etc., are completely interchangeable. For example, without departing from the scope of this disclosure, first information can also be referred to as second information, and similarly, second information can also be referred to as first information.

[0107] It is further understood that although operations are described in a specific order in the accompanying drawings in the embodiments of this disclosure, this should not be construed as requiring these operations to be performed in the specific order or serial order shown, or requiring all of the shown operations to be performed to obtain the desired result. In certain environments, multitasking and parallel processing may be advantageous.

[0108] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the utility models disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and embodiments are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims. It should be understood that this disclosure is not limited to the precise structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A boot assembly for protecting an electronic expansion valve (2) and a connection thereof with a refrigerant line, the electronic expansion valve (2) including a valve main body portion and a coil portion (201), the valve main body portion being connected with the refrigerant line, the coil portion (201) being connected with a power supply line (2011), characterized in that, The protective sleeve assembly comprises: a first protective sleeve (1) which is openable and closable to form a first cavity (101) capable of accommodating at least part of the valve body; a second protective sleeve (5) which is detachably sleeved on the first protective sleeve (1) and has a second cavity (502) capable of accommodating at least part of the coil.

2. The protective sleeve assembly according to claim 1, wherein: the first protective sleeve (1) and the second protective sleeve (5) are threadedly connected together; the outer wall surface of the first protective sleeve (1) is provided with an external thread structure, and the inner wall surface of the second protective sleeve (5) is provided with an internal thread structure (501).

3. The protective sleeve assembly according to claim 2, wherein: the first protective sleeve (1) comprises a first half shell (105) and a second half shell (106), the outer wall surface of the first half shell (105) is provided with a first external thread segment (103), the outer wall surface of the second half shell (106) is provided with a second external thread segment (104), and the first external thread segment (103) and the second external thread segment (104) jointly form a circular annular external thread structure in a closed state of the first half shell (105) and the second half shell (106); the internal thread structure (501) is configured as a circular annular internal thread structure which is adapted to the circular annular external thread structure.

4. The protective sleeve assembly according to claim 1, wherein: the first protective sleeve (1) comprises a first half shell (105) and a second half shell (106), the first half shell (105) is provided with a part of hole surface of the pipe passing hole (102) and the wire passing hole (107), and the second half shell (106) is provided with another part of hole surface of the pipe passing hole (102) and the wire passing hole (107); when the first half shell (105) and the second half shell (106) are butted together, the part of hole surface of the pipe passing hole (102) and the wire passing hole (107) formed on the first half shell (105) and the other part of hole surface of the pipe passing hole (102) and the wire passing hole (107) formed on the second half shell (106) are butted together to enclose the pipe passing hole (102) and the wire passing hole (107).

5. The protective sleeve assembly according to claim 4, wherein: the first half shell (105) comprises a first side wall (1051) and a first bottom wall (1052), and the second half shell (106) comprises a second side wall (1061) and a second bottom wall (1062). Part of the hole face of the wire passing hole (107) is formed at the open end of the first bottom wall (1052), and the other part of the hole face of the wire passing hole (107) is formed at the open end of the second bottom wall (1062); And / or, the pipe passing hole (102) comprises a first pipe passing hole (1021) and a second pipe passing hole (1022), part of the hole face of the first pipe passing hole (1021) is formed at the open end of the first bottom wall (1052), the other part of the hole face of the first pipe passing hole (1021) is formed at the open end of the second bottom wall (1062), part of the hole face of the second pipe passing hole (1022) is formed at the open end of the first side wall (1051), and the other part of the hole face of the second pipe passing hole (1022) is formed at the open end of the second side wall (1061).

6. The protective sleeve assembly of claim 5, wherein, The opposite end of the first half shell (105) and the second half shell (106) is provided with a movable connection structure (6), and the opposite end is provided with a detachable connection structure (7).

7. The boot assembly of claim 6, wherein, The movable connection structure (6) is a hinge structure; And / or, the detachable connection structure (7) is a buckle structure.

8. The protective sleeve assembly of claim 6, wherein, The movable connection structure (6) has a first connection section (601), a second connection section (602) and a third connection section (603), the second connection section (602) is located between the first connection section (601) and the third connection section (603), and the second connection section (602) is a flexible section, the first connection section (601) is connected with the first side wall (1051), and the third connection section (603) is connected with the second side wall (1061).

9. The protective sleeve assembly of claim 1, wherein, The first protective sleeve (1) and the second protective sleeve (5) are both configured as a cylindrical shell with one end open and one end closed, and the open ends of the two are detachably sleeved together.

10. An electronic expansion valve characterized by, Including: A valve body part connected with the refrigerant pipeline and a coil part (201) connected with a power supply circuit (2011); The protective sleeve assembly of any one of claims 1-4, 6-9; Wherein, the first cavity (101) contains at least part of the valve body part, and the second cavity (502) contains at least part of the coil part (201).

11. An electronic expansion valve characterized by Including: A valve body part comprising a refrigerant inlet pipe connection end (202) and a refrigerant outlet pipe connection end (203), the refrigerant inlet pipe connection end (202) is connected with the outflow end of the refrigerant pipeline, and the refrigerant outlet pipe connection end (203) is connected with the inflow end of the refrigerant pipeline; A coil part (201) connected with a power supply circuit (2011); The protective sleeve assembly of claim 5; The power supply circuit (2011) is arranged in the wire hole (107), the refrigerant inlet pipe connecting end (202) is arranged in the second pipe hole (1022), and the refrigerant outlet pipe connecting end (203) is arranged in the first pipe hole (1021).

12. An air conditioner characterized by comprising: Comprising: The electronic expansion valve according to claim 10 or 11.

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