Protective sleeve assembly, electronic expansion valve and air conditioner

Abstract

The invention 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] The present invention relates to the technical field of air conditioners, and in particular to a protective sleeve assembly, an electronic expansion valve and an air conditioner. Background Art

[0002] In the field of air conditioning related technology, the electronic expansion valve is a throttling component widely used in air conditioners. It is controlled by the coil installed on it. Its main function is to adjust the refrigerant flow and throttle pressure reduction. The electronic expansion valve coil is usually installed in the refrigeration pipeline. The electronic expansion valve is easily corroded if it is exposed to the environment for a long time. Summary of the invention

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

[0004] The present invention aims to provide a protective cover assembly for protecting an electronic expansion valve and a connection between the electronic expansion valve and a refrigerant pipeline. The electronic expansion valve comprises 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 cover assembly comprises:

[0005] A first protective cover, the first protective cover can be opened and closed to form a first cavity that can accommodate at least a part of the valve body; a pipe hole and a wire hole are formed on the first protective cover, the pipe hole is used to pass the refrigerant pipeline, and the wire hole is used to pass the power supply line;

[0006] The second protective cover is detachably mounted on the first protective cover, and a second cavity is formed inside the second protective cover which can accommodate at least a part of the coil part.

[0007] In some embodiments, the first protective cover is threadedly connected to the second protective cover; wherein an outer wall surface of the first protective cover is formed with an outer thread structure, and an inner wall surface of the second protective cover is formed with an inner thread structure.

[0008] In some embodiments, the first protective cover comprises 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, the outer wall surface of the second half shell is provided with a second external thread segment, and when the first half shell and the second half shell are in a closed state, the first external thread segment and the second external thread segment together form a circular 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 cover comprises a first half shell and a second half shell, the first half shell is formed with a portion of the tube hole and the wire hole, and the second half shell is formed with another portion of the tube hole and the wire hole;

[0011] When the first half shell and the second half shell are butted together, a portion of the hole surfaces of the tube through hole and the wire through hole formed on the first half shell and another portion of the hole surfaces of the tube through hole and the wire through hole formed on the second half shell are butted together to enclose the tube through hole and the wire through hole.

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

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

[0014] In some embodiments, one opposite end of the first half shell and the second half shell is provided with a movable connection structure, and the other opposite end is provided with a detachable connection structure.

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

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

[0017] In some embodiments, the movable connection structure has a first connecting segment, a second connecting segment and a third connecting segment, the second connecting segment is located between the first connecting segment and the third connecting segment, and the second connecting segment is a flexible segment, the first connecting segment is connected to the first side wall, and the third connecting segment is connected to the second side wall.

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

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

[0020] A valve body and a coil part, wherein the valve body is connected to the refrigerant pipeline, and the coil part is connected to the power supply line;

[0021] The above-mentioned protective cover assembly;

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

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

[0024] A valve body, the valve body comprising a coil part, a refrigerant inlet pipe connection end and a refrigerant outlet pipe connection end, the coil part is connected to a power supply line, the refrigerant inlet pipe connection end is connected to an outflow end of the refrigerant pipeline, and the refrigerant outlet pipe connection end is connected to an inflow end of the refrigerant pipeline;

[0025] A coil portion, the coil portion being connected to a power supply line;

[0026] The above-mentioned protective cover assembly;

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

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

[0029] The above electronic expansion valve.

[0030] The solution provided by the present invention has the following beneficial effects compared with the prior art:

[0031] By opening the first protective cover so that it surrounds the outside of the electronic expansion valve, and then closing the first protective cover so that it is fixed on the outside of the electronic expansion valve, the cavity formed in the second protective cover provides a storage space for the electronic expansion valve, and then the second protective cover is covered on the position of the upper opening of the first protective cover, so that a relatively closed cavity structure is formed between the first protective cover and the second protective cover, which effectively prevents the electronic expansion valve from being corroded due to long-term exposure to the environment, and prolongs the service life of the electronic expansion tube. At the same time, the first protective cover and the second protective cover are arranged in the vertical direction, and the first protective cover and the second protective cover surround the lower side, the surrounding side and the upper side of the electronic expansion valve from bottom to top, so that the electronic expansion valve is fully protected and easy to repair. When the electronic expansion valve needs to be repaired, it is only necessary to remove the second protective cover from the first protective cover to access the coil part of the internal electronic expansion valve, which is extremely convenient for its repair operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings:

[0033] Figure 1 is a schematic structural diagram of a protective cover assembly (a first protective cover and a second protective cover in a connected state) shown in an embodiment of the present invention;

[0034] Figure 2 is a schematic diagram of a cutaway structure of a protective cover assembly according to an embodiment of the present invention;

[0035] Figure 3 is one of the structural schematic diagrams of the first protective cover shown in an embodiment of the present invention;

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

[0037] Figure 5 This is the third structural schematic diagram of the first protective cover shown in the embodiment of the present invention;

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

[0039] Figure 7 is one of the structural schematic diagrams of the second protective cover shown in an embodiment of the present invention;

[0040] Figure 8 is the second structural schematic diagram of the second protective cover shown in the embodiment of the present invention;

[0041] Fig. 9 is a cross-sectional view of a protective cover assembly shown in an embodiment of the present invention;

[0042] Fig.10 is a cross-sectional view of an electronic expansion valve shown in an embodiment of the present invention.

[0043] In the figure: 1-first protective cover, 101-first cavity, 102-tube hole, 1021-first tube hole, 1022-second tube 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 hole, 2-electronic expansion valve, 201-coil part, 2011-power supply line, 202-refrigerant inlet pipe connection end, 203-refrigerant outlet pipe connection end, 5-second protective cover, 501-internal thread structure, 502-second cavity, 6-movable connection structure, 601-first connection section, 602-second connection section, 603-third connection section, 7-detachable connection structure.

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

[0045] In the description of the present invention, it should be noted that the terms "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0046] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "contacted", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] In the field of air conditioning related technology, the electronic expansion valve is a throttling component widely used in air conditioners. It is controlled by the coil installed on it. Its main function is to adjust the refrigerant flow and throttle pressure reduction. The electronic expansion valve coil is usually installed in the refrigeration pipeline. The electronic expansion valve is easily corroded if it is exposed to the environment for a long time.

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

[0049] Embodiment 1

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

[0051] The first protective cover 1 can be opened and closed to form a first cavity 101 that can accommodate at least part of the valve body; the first protective cover 1 is formed with a pipe hole 102 and a wire hole 107, the pipe hole 102 is used to pass the refrigerant pipeline, and the wire hole 107 is used to pass the power supply line 2011;

[0052] The second protective cover 5 is detachably mounted on the first protective cover 1 , and a second cavity 502 which can accommodate at least a part of the coil part 201 is formed inside the second protective cover 5 .

[0053] In this embodiment, the first protective cover 1 is opened to surround the outside of the valve body of the electronic expansion valve 2, and then the first protective cover 1 is closed to be fixed to the outside of the valve body of the electronic expansion valve 2. The first cavity 101 formed in the first protective cover 1 provides a storage space for the valve body of the electronic expansion valve 2, and then the second protective cover 5 is covered at the position of the upper opening of the first protective cover 1, so that a relatively closed cavity structure is formed between the first protective cover 1 and the second protective cover 5, which effectively prevents the electronic expansion valve 2 from being corroded due to long-term exposure to the environment as a whole, thereby extending the service life of the electronic expansion valve 2. At the same time, the first protective cover 5 is The protective cover 1 and the second protective cover 5 are arranged in the vertical direction. The first protective cover 1 forms a protective barrier for the bottom and the surrounding side of the valve body. The second protective cover 5, as the top component in the protective cover assembly, forms a protective barrier for the top and the surrounding side of the coil part 201. Therefore, the first protective cover 1 and the second protective cover 5 surround the bottom, the surrounding side and the top of the electronic expansion valve 2 from bottom to top, so that the electronic expansion valve 2 is fully protected and easy to maintain. When the electronic expansion valve 2 needs to be maintained, it is only necessary to remove the second protective cover 5 from the first protective cover 1 to access the coil part 201 of the internal electronic expansion valve 2, which is extremely convenient for its maintenance operation.

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

[0055] The second protective cover 5 itself also strengthens the closure degree of the first protective cover 1 after closing, that is, the second protective cover 5 strengthens the sealing of the first protective cover 1, and a relatively sealed cavity structure can be formed between the two without additional components, and it is easy to disassemble and assemble.

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

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

[0058] In this embodiment, the first protective cover 1 and the second protective cover 5 are threadedly connected. When the second protective cover 5 is screwed on the first protective cover 1 from top to bottom, the first side wall 1051 and the second side wall 1061 are automatically locked through the threaded cooperation between the two, thereby further improving the sealing between the two. At the same time, the threaded structure itself has sealing properties, and there is no need to use other sealing components such as tape to connect or seal the shells.

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

[0060] The first protective cover 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, and the outer wall surface of the second half shell 106 is provided with a second external thread segment 104. When the first half shell 105 and the second half shell 106 are in a closed state, the first external thread segment 103 and the second external thread segment 104 together form a circular external thread structure.

[0061] The internal thread structure 501 is constructed as a circular ring-shaped internal thread structure adapted to the circular ring-shaped 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 cover 5 is screwed from top to bottom on the first protective cover 1, the first side wall 1051 and the second side wall 1061 are automatically locked through the threaded cooperation between the two, thereby further improving the sealing between the two. At the same time, the threaded structure itself has sealing properties, and there is no need to use other sealing components such as tape to connect or seal the shells.

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

[0064] The first protective cover 1 comprises a first half shell 105 and a second half shell 106. The first half shell 105 is provided with a portion of the hole surface of the tube hole 102 and the wire hole 107. The second half shell 106 is provided with another portion of the hole surface of the tube hole 102 and the wire hole 107.

[0065] When the first half shell 105 and the second half shell 106 are butt-jointed together, a portion of the hole surfaces of the tube hole 102 and the wire hole 107 formed on the first half shell 105 and another portion of the hole surfaces of the tube hole 102 and the wire hole 107 formed on the second half shell 106 are butt-jointed together to enclose the tube hole 102 and the wire hole 107.

[0066] In this embodiment, the wire hole 107 and the tube hole 102 are both designed as a combination of two half holes to adapt to 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 surrounded on the peripheral side of the electronic expansion valve 2, and the wire hole 107 and the tube hole 102 are aligned to the power supply line 2011 and the refrigerant pipeline. 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 are surrounded on the outside of the electronic expansion valve 2. At the same time, the relative half holes are changed from a separated state to a merged state to form a complete wire hole 107 and a tube hole 102, which are directly enclosed on the outside of the power supply line 2011 and the refrigerant pipeline, thereby effectively protecting the peripheral side and the lower position of the electronic expansion valve 2.

[0068] Optionally, in an implementation of this embodiment, 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-tube hole 102 includes a first through-tube hole 1021 and a second through-tube hole 1022. A portion of the hole surface of the first through-tube 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-tube 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-tube 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-tube 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 composed of a first half shell 105 and a second half shell 106, so that the first protective cover 1 is more convenient to disassemble and assemble 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 cover 1 can be opened and closed, the first side wall 1051 and the second side wall 1061 have an end that is movably connected and an end opposite to the end that is movably connected, and the end is an opening and closing end, and 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 into left and right, and the first side wall 1051 and the second side wall 1061 are surrounded on the peripheral side of the electronic expansion valve 2, and then the opening and closing end is closed, so that the first side wall 1051 and the second side wall 1061 are surrounded on the outside of the electronic expansion valve 2, and 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 peripheral side and the lower position of the electronic expansion valve 2, and this design method makes it convenient to disassemble and assemble the first protective cover 1 as a whole on the peripheral side of the electronic expansion valve 2.

[0073] Furthermore, the second protective cover 5 is of an integral design. When the second protective cover 5 is connected to the first protective cover 1, not only do the two together form a relatively closed cavity structure, which provides all-round protection for the electronic expansion valve 2, but the second protective cover 5 itself also strengthens the degree of 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 cover 5 strengthens the sealing of the first protective cover 1, and a relatively sealed cavity structure can be formed between the two without the need for additional components, which is convenient for disassembly and assembly.

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

[0075] One opposite end of the first half shell 105 and the second half shell 106 is provided with a movable connection structure 6, and the other opposite end is provided with a detachable connection structure 7.

[0076] Further, 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 side wall 1051, and the third connection segment 603 is connected to the second side wall 1061.

[0079] In this embodiment, the first side wall 1051 and the second side wall 1061 are movably connected via a movable connection structure 6, and the detachable connection structure 7 adopts a card slot and a card protrusion to cooperate. The opening and closing end of the first side wall 1051 is provided with a card protrusion, and the opening and closing end of the second side wall 1061 is provided with a card slot that is engaged with the card protrusion.

[0080] Taking the movable connection structure 6 as an example, the first side wall 1051 and the second side wall 1061 can be opened and closed at any angle around the movable connection structure within its deformation limit, and the closed connection between the first side wall 1051 and the second side wall 1061 is achieved by snapping the card protrusion into the card slot.

[0081] Preferably, the second connecting section 602 is a flexible or elastic arc-shaped shell structure, which is connected to the second side wall 1061 through the first connecting section 601, and the second connecting section 602 is connected to the first side wall 1051, so that the movable connecting structure 6 as a whole connects the first side wall 1051 and the second side wall 1061, so that the first side wall 1051 and the second side wall 1061 can be opened and closed at any angle around the movable connecting structure within its deformation limit. When the first side wall 1051 and the second side wall 1061 are in the open state, the second connecting section 602 is deformed under force. When the first side wall 1051 and the second side wall 1061 are in the closed state, the second connecting section 602 is not subjected to force and recovers its deformation, thereby further increasing the convenience of opening and closing between the first side wall 1051 and the second side wall 1061.

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

[0083] The first protective cover 1 and the second protective cover 5 are both constructed as cylindrical shells with one end open and the other end closed, and the open ends of the two can be detachably mounted together.

[0084] In this embodiment, the first side wall 1051 and the second side wall 1061 are designed to be semi-cylindrical shells, and the first bottom wall 1052 and the second bottom wall 1062 are designed to be semi-circular plates, and the second protective cover 5 is designed to be a cylindrical shell. 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, and the first side wall 1051 and the second side wall 1061 are surrounded on the peripheral side of the electronic expansion valve 2, and then the opening and closing end is closed, so that the first side wall 1051 and the second side wall 1061 constitute a cylindrical shell-shaped first protective cover 1, The first protective cover 1 is arranged around the outside of the electronic expansion valve 2, and can provide all-round protection to the surrounding side of the electronic expansion valve 2. The first bottom wall 1052 and the second bottom wall 1062 are simultaneously combined at the lower position of the electronic expansion valve 2 to form a whole circular plate, thereby effectively protecting the lower position of the electronic expansion valve 2. The cylindrical shell-shaped second protective cover 5 can be directly covered on the first protective cover 1 composed of the first side wall 1051 and the second side wall 1061, which not only protects the upper part of the electronic expansion valve 2, but also facilitates disassembly and assembly, and the electronic expansion valve 2 is convenient for maintenance. After the maintenance is completed, the second protective cover 5 can be screwed on the first protective cover 1 again to restore the original closed state, and the operation is simple and convenient.

[0085] Embodiment 2

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

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

[0088] The above-mentioned protective cover assembly;

[0089] The first cavity accommodates at least part of the coil part 201 , at least part of the refrigerant inlet pipe connection end 202 , and at least part of the refrigerant outlet pipe connection end 203 , and the second cavity accommodates at least part of the coil part 201 .

[0090] Specifically, the coil part 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 is passed through the wire hole 107, the refrigerant inlet pipe connection end 202 is passed through the second pipe hole 1022, and the refrigerant outlet pipe connection end 203 is passed through the first pipe hole 1021.

[0091] In this embodiment, the first protective cover 1 is opened to surround the outside of the valve body, and then the first protective cover 1 is closed to be fixed on the outside of the electronic expansion valve 2. The cavity formed in the second protective cover 1 provides a space for accommodating the coil part 201. Then the second protective cover 5 is covered on the position of the opening 3 on the upper side of the first protective cover 1, so that a relatively closed cavity structure is formed between the first protective cover 1 and the second protective cover 5, which effectively prevents the electronic expansion valve 2 from being corroded due to long-term exposure to the environment as a whole, thereby extending the service life of the electronic expansion valve 2. At the same time, the first protective cover 1 and the second protective cover 5 are arranged in the vertical direction, and the first protective cover 1 and the second protective cover 5 surround the bottom, the surrounding side and the top of the electronic expansion valve 2 from bottom to top, so that the electronic expansion valve 2 is fully protected and easy to repair. When the electronic expansion valve 2 needs to be repaired, it only needs to remove the second protective cover 5 from the first protective cover 1 to contact the coil part 201 of the internal electronic expansion valve 2, which is extremely convenient for its repair operation.

[0092] When the first side wall 1051 and the second side wall 1061 in the first protective cover 1 are closed, the wire hole 107 is aligned and surrounded around the power supply line 2011, the first pipe hole 1021 is aligned and surrounded around the refrigerant pipe outlet connection end 203, and the second pipe hole 1022 is aligned and surrounded around the refrigerant pipe inlet connection end 202, thereby achieving accurate positioning of the first side wall 1051 and the second side wall 1061 without the need for additional positioning structure.

[0093] After the first side wall 1051 and the second side wall 1061 are closed, the wire hole 107, the first tube hole 1021 and the second tube hole 1022 are formed, so that the first protective cover 1 can be firmly fixed on the valve tube portion 202 of the electronic expansion valve 2, so that the first protective cover 1 is tightly connected to the electronic expansion valve 2, thereby preventing the first protective cover 1 from shaking due to loose fixation when vibration occurs, thereby preventing abnormal noise from being generated.

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

[0095] Embodiment 3

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

[0097] The above electronic expansion valve.

[0098] In this embodiment, the first protective cover 1 is opened to surround the outside of the electronic expansion valve 2, and then the first protective cover 1 is closed to be fixed on the outside of the electronic expansion valve 2. The cavity formed in the first protective cover 1 provides a storage space for the valve body, and then the second protective cover 5 is covered on the upper opening of the first protective cover 1, so that a relatively closed cavity structure is formed between the first protective cover 1 and the second protective cover 5, which effectively prevents the electronic expansion valve 2 from being corroded due to long-term exposure to the environment, prolongs the service life of the electronic expansion tube 2, and further prolongs the overall service life of the air conditioner. At the same time, the first protective cover 1 and the second protective cover 5 are arranged in the vertical direction, and the first protective cover 1 and the second protective cover 5 surround the lower side, the surrounding side and the upper side of the electronic expansion valve 2 from bottom to top, so that the electronic expansion valve 2 is fully protected and easy to repair. When the electronic expansion valve 2 needs to be repaired, it is only necessary to remove the second protective cover 5 from the first protective cover 1 to access the coil part 201 of the internal electronic expansion valve 2, which is extremely convenient for its repair operation.

[0099] In summary, the ingenious design of the protective cover assembly is:

[0100] First, by opening the first protective cover so that it surrounds the outside of the electronic expansion valve, and then closing the first protective cover so that it is fixed on the outside of the electronic expansion valve, the cavity formed in the second protective cover provides a space for accommodating the coil part, and then the second protective cover is covered on the position of the upper opening of the first protective cover, so that a relatively closed cavity structure is formed between the first protective cover and the second protective cover, which effectively prevents the electronic expansion valve from being corroded due to long-term exposure to the environment, and prolongs the service life of the electronic expansion tube. At the same time, the first protective cover and the second protective cover are arranged in the vertical direction, and the first protective cover and the second protective cover surround the lower side, the surrounding side and the upper side of the electronic expansion valve from bottom to top, so that the electronic expansion valve is fully protected and easy to repair. When the electronic expansion valve needs to be repaired, it only needs to remove the second protective cover from the first protective cover to access the coil part of the internal electronic expansion valve, which is extremely convenient for its repair operation.

[0101] Second, the second protective cover is of integral design. When the second protective cover is connected to the first protective cover, not only do the two together form a relatively closed cavity structure, providing all-round protection for the electronic expansion valve, but the second protective cover itself also strengthens the degree of closure between the first side wall and the second side wall, that is, the second protective cover strengthens the sealing of the first protective cover. No additional components are required between the two to form a relatively sealed cavity structure, and at the same time, it is easy to disassemble and assemble.

[0102] Thirdly, the design of the wire holes and the pipe holes also enables the first protective cover to be more stably fixed to the outside of the electronic expansion valve after being closed, supported by the power supply line, the refrigerant outlet pipe and the refrigerant inlet pipe.

[0103] Fourth, the first half shell and the second half shell are designed to be semi-cylindrical shells, and the second protective cover is designed to be a cylindrical shell. The first protective cover is arranged around the outside of the electronic expansion valve, and can provide all-round protection for the surrounding side and the lower part of the electronic expansion valve. The cylindrical shell-shaped second protective cover can be directly covered on the first protective cover, which not only protects the upper part of the electronic expansion valve, but also facilitates disassembly and assembly, and the electronic expansion valve is convenient for maintenance.

[0104] Fifth, the first half shell and the second half shell are automatically locked by the threaded cooperation between the first protective cover and the second protective cover, thereby further improving the sealing between the two. Meanwhile, the threaded structure itself has sealing properties, and there is no need to use other sealing components such as tape to connect or seal the shells.

[0105] It is further understood that in the present disclosure, "plurality" refers to two or more than two, and other quantifiers are similar thereto. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship. The singular forms "a", "the" and "the" are also intended to include plural forms, unless the context clearly indicates other meanings.

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

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

[0108] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0109] It should be understood that the present disclosure is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the scope of the appended claims.

Claims

1. A protective sleeve assembly for protecting an electronic expansion valve (2) and a connection between the electronic expansion valve (2) and a refrigerant pipeline, wherein the electronic expansion valve (2) comprises a valve body and a coil (201), wherein the valve body is connected to the refrigerant pipeline, and the coil (201) is connected to a power supply line (2011), characterized in that: The protective cover assembly comprises: A first protective sleeve (1), the first protective sleeve (1) can be opened and closed to form a first cavity (101) capable of accommodating at least a portion of the valve body; a pipe hole (102) and a wire hole (107) are formed on the first protective sleeve (1), the pipe hole (102) is used for passing the refrigerant pipeline, and the wire hole (107) is used for passing the power supply line (2011); A second protective cover (5), the second protective cover (5) being detachably mounted on the first protective cover (1), and a second cavity (502) capable of accommodating at least a portion of the coil portion (201) being formed inside the second protective cover (5).

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

3. The protective cover assembly according to claim 2, characterized in that: The first protective cover (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); when the first half shell (105) and the second half shell (106) are in a closed state, the first external thread segment (103) and the second external thread segment (104) together form a circular external thread structure; The internal thread structure (501) is constructed as an annular internal thread structure adapted to the annular external thread structure.

4. The protective cover assembly according to claim 1, characterized in that: The first protective cover (1) comprises a first half shell (105) and a second half shell (106); a portion of the hole surface of the tube hole (102) and the wire hole (107) is formed on the first half shell (105); and another portion of the hole surface of the tube hole (102) and the wire hole (107) is formed on the second half shell (106); When the first half shell (105) and the second half shell (106) are butt-jointed together, a portion of the hole surfaces of the tube through hole (102) and the wire through hole (107) formed on the first half shell (105) and another portion of the hole surfaces of the tube through hole (102) and the wire through hole (107) formed on the second half shell (106) are butt-jointed together to enclose the tube through hole (102) and the wire through hole (107).

5. The protective cover assembly according to claim 4, characterized in that: 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-passing 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-passing hole (107) is formed at the opening and closing end of the second bottom wall (1062); And / or, the through-tube hole (102) comprises a first through-tube hole (1021) and a second through-tube hole (1022), a portion of the hole surface of the first through-tube hole (1021) is formed at the opening and closing end of the first bottom wall (1052), another portion of the hole surface of the first through-tube 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-tube 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-tube hole (1022) is formed at the opening and closing end of the second side wall (1061).

6. The protective cover assembly according to claim 3 or 4, characterized in that: One opposite end of the first half shell (105) and the second half shell (106) is provided with a movable connection structure (6), and the other opposite end is provided with a detachable connection structure (7).

7. The protective cover assembly according to claim 6, characterized in that: The movable connection structure (6) is a movable connection structure or a hinged structure; And / or, the detachable connection structure (7) is a snap-fit ​​structure.

8. The protective cover assembly according to claim 7, characterized in that: The movable connection structure (6) comprises a first connection segment (601), a second connection segment (602) and a third connection segment (603), wherein 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 side wall (1051), and the third connection segment (603) is connected to the second side wall (1061).

9. The protective cover assembly according to claim 1, characterized in that: The first protective cover (1) and the second protective cover (5) are both constructed as cylindrical shells with one end open and the other end closed, and the open ends of the two can be detachably mounted together.

10. An electronic expansion valve, characterized in that: include: A valve body and a coil part (201), wherein the valve body is connected to the refrigerant pipeline, and the coil part (201) is connected to a power supply line (2011); The protective cover assembly according to any one of claims 1-4, 6-9; The first cavity (101) accommodates at least a portion of the valve body, and the second cavity (502) accommodates at least a portion of the coil portion (201).

11. An electronic expansion valve, characterized in that: include: A valve body, the valve body comprising a refrigerant inlet pipe connection end (202) and a refrigerant outlet pipe connection end (203), the refrigerant inlet pipe connection end (202) being connected to the outflow end of the refrigerant pipeline, and the refrigerant outlet pipe connection end (203) being connected to the inflow end of the refrigerant pipeline; A coil portion (201), wherein the coil portion (201) is connected to a power supply line (2011); The protective cover assembly as claimed in claim 5; The power supply line (2011) is passed through the wire hole (107), the refrigerant inlet pipe connection end (202) is passed through the second pipe hole (1022), and the refrigerant outlet pipe connection end (203) is passed through the first pipe hole (1021).

12. An air conditioner, characterized in that: include: An electronic expansion valve as claimed in claim 10 or 11.

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