Electronic expansion valve assembly and air conditioner

Abstract

The utility model provides an electronic expansion valve assembly and an air conditioner, the electronic expansion valve assembly comprises an electronic expansion valve coil and a protective sleeve, the protective sleeve is sleeved on the periphery of the electronic expansion valve coil, and a gap exists between the inner wall of the protective sleeve and the peripheral wall of the electronic expansion valve coil. A gap between the peripheral wall of the electronic expansion valve coil and the inner wall of the protective sleeve is H. The protective sleeve is of a cylinder structure and has the inner diameter D. The ratio of the gap H to the inner diameter D ranges from 0.013 to 0.053. According to the electronic expansion valve assembly, the electronic expansion valve coil can be protected, the overall structure is compact, the noise generated when the electronic expansion valve assembly operates can be reduced, the vibration reduction effect and the compact structure are compatible, and the operation reliability of the electronic expansion valve assembly is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to air conditioning technical field, concretely relates to an electronic expansion valve assembly and air conditioner. BACKGROUND

[0002] The electronic expansion valve is a throttling assembly widely used in air conditioners, which is controlled by a coil installed thereon, and the main function is to regulate the flow of refrigerant and throttle pressure reduction. The connection of the coil and its connecting wire is usually exposed, which has electrical safety hazards. In the running process, the vibration of the electronic expansion valve will cause the coil to vibrate, and a safety distance needs to be reserved with the surrounding parts when redesigning. The existing protective sleeve is small in size, which will reduce the distance between the coil of the electronic expansion valve and the surrounding components after installation, and is easy to collide when vibrating, which has hidden dangers of damage. In addition, the existing protective sleeve is usually fixed on the electronic expansion valve, and the disassembly of the protective sleeve can only be carried out in the unit during maintenance, which has certain difficulty in operation.

[0003] Because the protective sleeve of the electronic expansion valve coil in the prior art is too small in size, it is easy to collide when vibrating, which has hidden dangers of damage, and the protective sleeve is too large in size, which will cause the overall size to be too large and cause the internal coil to shake, etc. Technical problems, therefore, the utility model research designs a kind of electronic expansion valve assembly and air conditioner. UTILITY MODEL CONTENTS

[0004] Therefore, the technical problem to be solved by the utility model is to overcome the defects that the electronic expansion valve coil and the protective sleeve in the prior art cannot simultaneously compatible with vibration reduction and compact size, so as to provide an electronic expansion valve assembly and air conditioner.

[0005] In order to solve the above problems, the utility model provides an electronic expansion valve assembly, which comprises:

[0006] The electronic expansion valve coil and the protective sleeve, the protective sleeve is sleeved on the outer periphery of the electronic expansion valve coil, and there is a gap between the inner wall of the protective sleeve and the outer peripheral wall of the electronic expansion valve coil, and the gap between the outer peripheral wall of the electronic expansion valve coil and the inner wall of the protective sleeve is H, the protective sleeve comprises a main part sleeved on the outer periphery of the electronic expansion valve coil, the main part is a cylindrical structure, has an inner diameter D, and the ratio between the gap H and the inner diameter D is between 0.013 and 0.053.

[0007] In some embodiments,

[0008] The outer periphery of the electronic expansion valve coil is a cylindrical structure, the outer periphery diameter is 37±0.5mm, and the inner diameter of the protective sleeve is 38±0.5mm.

[0009] In some embodiments,

[0010] The protective sleeve comprises a first sleeve part and a second sleeve part, which can be spliced to form a whole protective sleeve around the outer periphery of the electronic expansion valve coil.

[0011] In some embodiments,

[0012] One end of the first sleeve part is connected to one end of the second sleeve part, and the other end of the first sleeve part can rotate around the one end thereof to be buckled or separated from the second sleeve part, and the other end of the second sleeve part can rotate around the one end thereof to be buckled or separated from the first sleeve part.

[0013] In some embodiments,

[0014] One end of the first sleeve part is hingedly connected to one end of the second sleeve part, and the first sleeve part and the second sleeve part are respectively made of plastic material and integrally formed.

[0015] In some embodiments,

[0016] The first sleeve part comprises a first mounting cavity, and the second sleeve part comprises a second mounting cavity, which can be connected and communicated to accommodate the electronic expansion valve coil therein.

[0017] The first sleeve part further comprises a first contact surface located at the edge of the first mounting cavity, and the second sleeve part further comprises a second contact surface located at the edge of the second mounting cavity, which are connected and fitted to complete the splicing between the first sleeve part and the second sleeve part.

[0018] In some embodiments,

[0019] The first sleeve part comprises a first mounting part, and the second sleeve part comprises a second mounting part, which are connected to one side of the first mounting cavity and one side of the second mounting cavity, respectively, and the first mounting part has a first mounting surface, and the second mounting part has a second mounting surface, which are connected to each other, and the first mounting part is provided with a first mounting hole, and the second mounting part is provided with a second mounting hole, which are opposite and communicated when the first mounting surface and the second mounting surface are connected to each other.

[0020] In some embodiments,

[0021] The first mounting part and / or the second mounting part are provided with a mounting limiting part to limit and guide the mounting process of the first mounting part and the second mounting part.

[0022] In some embodiments,

[0023] The first part sleeve is further provided with a first wire passing structure, and the second part sleeve is provided with a second wire passing structure, the first wire passing structure comprises a first wire passing cavity, the second wire passing structure comprises a second wire passing cavity, the first wire passing cavity is opposite to and communicates with the second wire passing cavity to accommodate a wire therein, and the first wire passing structure and the second wire passing structure are further provided with a wire passing hole in communication, and the wire passing hole is in communication with the first wire passing cavity and / or the second wire passing cavity to allow the wire to pass through.

[0024] The utility model also provides a kind of air conditioner, it includes the electronic expansion valve assembly of preceding description.

[0025] The electronic expansion valve assembly and air conditioner provided by the utility model have the following beneficial effects:

[0026] The protective sleeve is arranged on the outer periphery of the electronic expansion valve coil, which can protect the electronic expansion valve coil, and the gap between the inner wall of the protective sleeve and the outer peripheral wall of the electronic expansion valve coil is set to be between 0.013 and 0.053 times the inner diameter D of the protective sleeve, so that the volume of the protective sleeve can be reduced while greatly reducing the vibration and noise caused by the impact between the protective sleeve and the electronic expansion valve coil, and the protective sleeve can protect the electronic expansion valve coil, the overall structure is compact, and the noise during operation of the electronic expansion valve assembly is reduced, and the vibration reduction effect and compact structure are compatible, and the operation reliability of the electronic expansion valve assembly is improved. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is the front view of the electronic expansion valve assembly of the utility model;

[0028] Figure 2 is the back view of the electronic expansion valve assembly of the utility model;

[0029] Figure 3 is the internal structure diagram of the electronic expansion valve assembly of the utility model;

[0030] Figure 4 is the front view of the protective sleeve of the utility model after being opened;

[0031] Figure 5 is the back view of the protective sleeve of the utility model after being opened;

[0032] Figure 6 is the noise value of the electronic expansion valve under different working conditions of the utility model and the prior art.

[0033] The reference signs are represented as:

[0034] 1, electronic expansion valve coil; 2, protective sleeve; 21, first part sleeve; 22, second part sleeve; 23, first mounting cavity; 24, second mounting cavity; 150, first contact surface; 230, second contact surface; 25, first mounting portion; 26, second mounting portion; 110, first mounting hole; 210, second mounting hole; 120, mounting limiting portion; 130, wire passing hole; 140, first wire passing structure; 220, second wire passing structure; 3, connecting portion; 4, electronic expansion valve. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. The description of the at least one exemplary embodiment is actually only illustrative, but not as any limitation on the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0036] It should be noted that the terms used herein are only intended to describe specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form, unless the context clearly indicates otherwise, and it should also be understood that when the terms "comprise" and / or "include" are used in the specification, there is a presence of the features, steps, operations, devices, components and / or combinations thereof.

[0037] Unless specifically stated otherwise, the relative arrangement of components and steps, numerical expressions, and numerical values set forth in the various embodiments described herein are not limiting. Also, it should be understood that the dimensions of the various parts shown in the drawings are not necessarily to scale. Techniques, methods, and devices known to those of ordinary skill in the relevant art can not be discussed in detail, but rather can be assumed to be known by those of ordinary skill in the art. In all examples shown and discussed herein, any specific values should be interpreted as merely illustrative and not limiting. Other examples of the exemplary embodiments can have different values. It should be noted that like references herein to similar items generally mean like items unless the context clearly indicates otherwise. Thus, once a term is defined, it should be interpreted as broadly as possible in the context in which it is used.

[0038] In the description of the utility model, it needs to understand that the orientation words such as " front, rear, upper, lower, left, right " " horizontal, vertical, perpendicular, horizontal " and " top, bottom " and the orientation or positional relationship indicated by the drawings are usually based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, in the absence of the opposite statement, these orientation words do not indicate and imply that the device or element indicated must have a particular orientation or be constructed and operated in a particular orientation, therefore it can not be understood as the limitation of the protection scope of the utility model;The orientation words " inner, outer " refer to the inner and outer of the contour of each component itself.

[0039] For the convenience of description, spatial relative terms such as " above ", " above ", " upper surface ", " upper " and the like can be used here to describe the spatial position relationship of one device or feature with other devices or features as shown in the drawing. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device described in the drawing. For example, if the device in the drawing is inverted, the device described as " above " or " above " other devices or structures will be positioned " below " or " below " other devices or structures. Thus, the exemplary term " above " can include both " above " and " below ". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative description used here is interpreted accordingly.

[0040] In addition, it should be noted that the use of " first ", " second " and the like to limit parts is only for the convenience of distinguishing the corresponding parts, and the above words have no special meaning unless otherwise stated, therefore it can not be understood as the limitation of the protection scope of the utility model.

[0041] As Figures 1-6 The utility model provides an electronic expansion valve assembly, it includes:

[0042] Electronic expansion valve coil 1 and protective sleeve 2, the protective sleeve 2 is set on the outer periphery of the electronic expansion valve coil 1, and there is a gap between the inner wall of the protective sleeve 2 and the outer periphery wall of the electronic expansion valve coil 1, and the gap between the outer periphery wall of the electronic expansion valve coil 1 and the inner wall of the protective sleeve 2 is H, the protective sleeve 2 includes the main part of the outer periphery of the electronic expansion valve coil 1, and the main part is cylindrical structure (such as Figure 3As shown, the protective sleeve includes a small cylinder on the upper side and a large cylinder on the lower side, the large cylinder being the main part, protecting the coil from the outside, and the small cylinder preferably protecting the structure above the coil, having an inner diameter D, and having a ratio between the gap H and the inner diameter D of between 0.013 and 0.053.

[0043] The utility model discloses a protective sleeve is arranged on the outer periphery of the electronic expansion valve coil, can play the protection effect to the electronic expansion valve coil, and the gap between the outer peripheral wall of the electronic expansion valve coil and the inner wall of the protective sleeve, and the ratio between the gap H between the inner wall of the protective sleeve and the outer peripheral wall of the electronic expansion valve coil and the inner diameter D of the protective sleeve is arranged between 0.013~0.053, so that the volume of the protective sleeve can be reduced, and the vibration and noise caused by the impact between the protective sleeve and the electronic expansion valve coil can be greatly reduced, and the protection of the electronic expansion valve coil, compact overall structure and the noise reduction of the electronic expansion valve assembly during operation and multiple functions are realized, the vibration reduction effect and compact structure are compatible, and the operation reliability of the electronic expansion valve assembly is improved.

[0044] The left protective shell (first part sleeve 21) and the right protective shell (second part sleeve 22) are aligned and spliced, a cavity structure is formed in the protective sleeve, the coil of the electronic expansion valve 4 can be accommodated, the cavity is tightly combined with the outer side of the electronic expansion valve coil, the inner diameter of the cavity is only 2% to 5% larger than the outer diameter of the electronic expansion valve coil, the gap between the protective sleeve and the coil is reduced while the space occupation is reduced, and abnormal noise caused by the shaking of the protective sleeve during vibration is avoided. In addition, when the electronic expansion valve without a waterproof cover is used, the top of the electronic expansion valve is preferably in a bare state, and the cavity structure formed in the protective sleeve can protect the valve body.

[0045] In some embodiments,

[0046] The outer periphery of the electronic expansion valve coil 1 is a cylindrical structure, and the outer periphery diameter is 37±0.5mm, and the inner diameter of the protective sleeve 2 is 38±0.5mm.

[0047] This is the preferred size of the outer periphery diameter of the electronic expansion valve coil and the preferred size of the inner diameter of the protective sleeve of the utility model, and the reference Figure 6 For the use of the present embodiment (the ratio between the gap H and the inner diameter D is between 0.013 and 0.053) and the prior art scheme, the noise value of the electronic expansion valve is measured under different working conditions, and it can be seen that the present embodiment and the prior art scheme do not have obvious changes on the total noise value of the electronic expansion valve, but the noise peak value is reduced to a certain extent, which reflects that the noise peak is reduced to a certain extent, and it is proved that the cavity formed in the present embodiment is tightly combined with the outer side of the electronic expansion valve coil, and the abnormal noise caused by the shaking of the protective sleeve can be effectively reduced.

[0048] In some embodiments,

[0049] The protective sleeve 2 comprises a first part sleeve 21 and a second part sleeve 22, which can be spliced to form a whole protective sleeve 2 around the outer periphery of the electronic expansion valve coil 1.

[0050] This is the preferred structure of the protective sleeve of the utility model, that is, the split structure comprising the first and second part sleeves, and the two parts are spliced to form the protective sleeve structure, which can be conveniently installed and disassembled, thereby being conveniently installed around the outer periphery of the electronic expansion valve coil to protect it.

[0051] The protective sleeve of the utility model can increase sealing between the contact surfaces of the left and right half shells, further improve the sealing performance of the protective sleeve, and enhance the protection of the electronic expansion valve coil.

[0052] In some embodiments,

[0053] One end of the first part sleeve 21 is connected to one end of the second part sleeve 22, and the other end of the first part sleeve 21 can rotate around the one end to be buckled or separated from the second part sleeve 22, and the other end of the second part sleeve 22 can rotate around the one end to be buckled or separated from the first part sleeve 21.

[0054] This is the preferred connection mode of the two part sleeves of the utility model, that is, one end of the two part sleeves is connected, and the other end of one sleeve is rotated relative to the other end of the other sleeve to buckle or separate the two part sleeves, thereby completing the connection and disassembly between the two part sleeves, and thereby being conveniently installed around the outer periphery of the electronic expansion valve coil to protect it.

[0055] In some embodiments,

[0056] One end of the first part sleeve 21 is hingedly connected to one end of the second part sleeve 22, and the first part sleeve 21 and the second part sleeve 22 are respectively formed of plastic material and are integrally formed.

[0057] This is a further preferred structure of the utility model, and the adjacent ends of the two part sleeves are connected by hinging, thereby enabling one sleeve to rotate relative to the other sleeve to achieve the purpose of opening and closing the protective sleeve, and the two protective sleeves are preferably made of plastic material and are integrally formed, thereby being convenient for processing and manufacturing.

[0058] The utility model provides a protective sleeve for protecting electronic expansion valve coil, the protective sleeve is injection molding part, preferably including left side protective shell (first part cover 21), right side protective shell (second part cover 22) and connecting part 3 jointly constitute, left side protective shell, right side protective shell and connecting part 3 are an entirety, left side protective shell and right side protective shell are connected through connecting part 3, and can open and close at arbitrary angle within its deformation limit around connecting part 3.

[0059] In some embodiments,

[0060] The first part cover 21 includes a first mounting cavity 23, and the second part cover 22 includes a second mounting cavity 24, the first mounting cavity 23 and the second mounting cavity 24 can be connected and communicated, so as to accommodate the electronic expansion valve coil 1 therein.

[0061] The first part cover 21 further includes a first contact surface 150 located at the edge of the first mounting cavity 23, and the second part cover 22 further includes a second contact surface 230 located at the edge of the second mounting cavity 24, the first contact surface 150 and the second contact surface 230 are connected and fitted, and the splicing between the first part cover 21 and the second part cover 22 is completed.

[0062] The two part covers of the utility model include mounting cavities respectively, can be connected and communicated through the mounting cavities to accommodate the electronic expansion valve coil therein, so as to accommodate the electronic expansion valve coil, and the first and second contact surfaces at the edges of the two part covers are connected and fitted, so as to ensure the splicing between the two part covers and the density effect between the part covers.

[0063] The protective sleeve is fixed on the coil, so the protective sleeve can be installed on the coil first, then the coil is installed into the electronic expansion valve, after installation, the protective sleeve can be disassembled together with the coil, avoiding the trouble of disassembling the protective sleeve in the unit.

[0064] The left side protective shell (the first part cover 21) has a left contact surface (the first contact surface 150), and the right side protective shell (the second part cover 22) has a right contact surface (the second contact surface 230), the left contact surface and the right contact surface are oppositely arranged, after the left side protective shell and the right side protective shell are aligned and spliced, the left contact surface and the right contact surface are in contact with each other, and sealing such as sealant can be added to the left contact surface and the right contact surface, so as to further improve the sealing property of the protective sleeve and enhance the protection of the electronic expansion valve coil.

[0065] In some embodiments,

[0066] The first part sleeve 21 comprises a first mounting portion 25 connected to one side of the first mounting cavity 23, and the second part sleeve 22 comprises a second mounting portion 26 connected to one side of the second mounting cavity 24, wherein the first mounting portion 25 is provided with a first mounting face, the second mounting portion 26 is provided with a second mounting face, the first mounting face is opposite to the second mounting face, the first mounting portion 25 is provided with a first mounting hole 110, the second mounting portion 26 is provided with a second mounting hole 210, and the first mounting hole 110 is opposite to and communicates with the second mounting hole 210 when the first mounting face is opposite to the second mounting face. Figure 4

[0067] The utility model further further through first and second mounting portion's setting, two installation portion has installation face respectively, thereby utilizing the butt joint of two installation faces, can realize the connection installation of two part sleeves, and first mounting portion is provided with first mounting hole, second mounting hole sets up second mounting hole, makes two mounting holes opposite communication, thereby can pass through fastener such as screw and enter the inside of stud sleeve with first mounting hole 110, as

[0068] The left side protective shell (the first part sleeve 21) is provided with a self-tapping screw through hole (the first mounting hole 110), and the right side protective shell (the second part sleeve 22) is provided with a corresponding screw column (the second mounting hole 210). After the left side protective shell and the right side protective shell are spliced, the self-tapping screw is screwed into the screw column through the screw through hole and the screw column to fix and connect the two side shells. On the one hand, the protective sleeve is fixed, and it is tightly buckled on the electronic expansion valve to avoid the vibration of the electronic expansion valve during the operation of the air conditioner, so that the protective sleeve is loosened, and the installation stability of the protective sleeve is ensured. On the other hand, the threaded fastener is convenient to disassemble and assemble, and the electronic expansion valve and its coil are convenient to maintain and replace.

[0069] In some embodiments,

[0070] The first mounting portion 25 and / or the second mounting portion 26 are provided with a mounting limiting portion 120 to limit and guide the installation process of the first mounting portion 25 and the second mounting portion 26.

[0071] The utility model further can limit and guide the installation process of the two mounting portions through the mounting limiting portion, and the mounting limiting portion is preferably a stop block structure, so that the protective sleeve screw hole can be quickly positioned and installed conveniently. ​

[0072] The left side protective shell (the first part sleeve 21) and the right side protective shell (the second part sleeve 22) are connected by installing the limiting part 120 (preferably installing the stopper) after being spliced, the stopper also comprises a limiting structure, the screw fixing structure of the left side protective shell and the right side protective shell is aligned when the two side protective shells are spliced, and screw fastening is facilitated.

[0073] In some embodiments,

[0074] The first part sleeve 21 is further provided with a first wire passing structure 140, the second part sleeve 22 is provided with a second wire passing structure 220, the first wire passing structure 140 comprises a first wire passing cavity, the second wire passing structure 220 comprises a second wire passing cavity, the first wire passing cavity is opposite to and communicates with the second wire passing cavity, so as to accommodate the wire therein, and the first wire passing structure 140 and the second wire passing structure 220 are further provided with a wire passing hole 130 in communication, the wire passing hole 130 communicates with the first wire passing cavity and / or the second wire passing cavity, so as to allow the wire to pass through.

[0075] The utility model discloses still through setting up wire passing cavity's structure and wire passing hole structure on two part sleeves, can form a wire passing path structure, seal electronic expansion valve coil wiring place and the line exposed outside in the protective sleeve, guarantee electrical safety.

[0076] The left side protective shell (the first part sleeve 21) is provided with a wire passing hole 130 and a left side wire passing structure (a first wire passing structure 140), the wire passing hole 130 and the left side wire passing area (a first wire passing cavity) are communicated, and the right side protective shell (the second part sleeve 22) is provided with a right side wire passing structure (a second wire passing structure 220) corresponding to the left side wire passing structure. After the left side protective shell and the right side protective shell are aligned and spliced, the cavity structure formed by the left side wire passing area and the right side wire passing area (a second wire passing cavity) can be used to accommodate the connecting wire of the electronic expansion valve coil, the connecting wire passes out through the wire passing hole 130, and the wire passing structure provides additional electrical safety protection for the connecting wire and can also fix the position of the connecting wire.

[0077] The utility model discloses still provide a kind of air conditioner, it includes the electronic expansion valve assembly of preceding.

[0078] The utility model provides an electronic expansion valve assembly, which comprises a protective sleeve and a coil:

[0079] 1. The protective sleeve seals the electronic expansion valve coil and its wiring completely, enhancing the electrical safety protection effect of the coil. The protective sleeve is installed to fit the shape of the electronic expansion valve coil, reducing the volume of the protective sleeve. The unique gap and the relationship between the sizes are set to reduce the volume while improving the damping effect of the electronic expansion valve assembly.

[0080] 2. The protection sleeve is positioned by the block structure screw hole, facilitating quick installation.

[0081] 3. The protection sleeve is only fixed on the coil, and can be disassembled together with the coil, facilitating operation.

[0082] The utility model can solve the following technical problems:

[0083] 1. The electrical safety protection of the electronic expansion valve coil is strengthened, the protection sleeve has a large volume, occupies too much space, and the protection sleeve and the coil are prone to impact and generate noise during operation;

[0084] 2. The protection sleeve is fixed by screws, and the screw hole is difficult to position during installation.

[0085] 3. The protection sleeve is fixed on the electronic expansion valve, and the disassembly and assembly operation is difficult.

[0086] The above is only a preferred embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model. The above is only a preferred embodiment of the utility model, and it should be pointed out that, for ordinary skilled persons in the technical field, on the premise of not departing from the technical principle of the utility model, a number of improvements and modifications can be made, and these improvements and modifications should be regarded as the protection scope of the utility model.

Claims

1. An electronic expansion valve assembly, characterized in that: include: An electronic expansion valve coil (1) and a protective sleeve (2) are provided. The protective sleeve (2) is fitted around the outer periphery of the electronic expansion valve coil (1), and there is a gap between the inner wall of the protective sleeve (2) and the outer periphery of the electronic expansion valve coil (1). The gap between the outer periphery of the electronic expansion valve coil (1) and the inner wall of the protective sleeve (2) is H. The protective sleeve (2) includes a main body part fitted around the outer periphery of the electronic expansion valve coil (1). The main body part is a cylindrical structure with an inner diameter D, and the ratio between the gap H and the inner diameter D is between 0.013 and 0.

053.

2. The electronic expansion valve assembly according to claim 1, characterized in that: The outer circumference of the electronic expansion valve coil (1) is a cylindrical structure with an outer circumference diameter of 37±0.5mm, and the inner diameter of the protective sleeve (2) is 38±0.5mm.

3. The electronic expansion valve assembly according to claim 1, characterized in that: The protective sleeve (2) includes a first part sleeve (21) and a second part sleeve (22), which can be spliced ​​together to form an integral protective sleeve (2) surrounding the outer periphery of the electronic expansion valve coil (1).

4. The electronic expansion valve assembly according to claim 3, characterized in that: One end of the first part sleeve (21) is connected to one end of the second part sleeve (22), and the other end of the first part sleeve (21) can rotate around one end to engage or disengage with the second part sleeve (22), and the other end of the second part sleeve (22) can rotate around one end to engage or disengage with the first part sleeve (21).

5. The electronic expansion valve assembly according to claim 4, characterized in that: One end of the first part sleeve (21) is hinged to one end of the second part sleeve (22). The first part sleeve (21) and the second part sleeve (22) are both made of plastic and are integrally molded.

6. The electronic expansion valve assembly according to claim 3, characterized in that: The first part sleeve (21) includes a first mounting cavity (23), and the second part sleeve (22) includes a second mounting cavity (24). The first mounting cavity (23) and the second mounting cavity (24) can be connected and communicate with each other to accommodate the electronic expansion valve coil (1). The first part sleeve (21) further includes a first contact surface (150) located at the edge of the first mounting cavity (23), and the second part sleeve (22) further includes a second contact surface (230) located at the edge of the second mounting cavity (24). The first contact surface (150) and the second contact surface (230) are connected and fitted together to complete the splicing between the first part sleeve (21) and the second part sleeve (22).

7. The electronic expansion valve assembly according to claim 6, characterized in that: The first part sleeve (21) includes a first mounting part (25), and the second part sleeve (22) includes a second mounting part (26). The first mounting part (25) is connected to one side of the first mounting cavity (23), and the second mounting part (26) is connected to one side of the second mounting cavity (24). The first mounting part (25) has a first mounting surface, and the second mounting part (26) has a second mounting surface. The first mounting surface and the second mounting surface are in contact with each other. The first mounting part (25) is provided with a first mounting hole (110), and the second mounting part (26) is provided with a second mounting hole (210). When the first mounting surface and the second mounting surface are in contact with each other, the first mounting hole (110) and the second mounting hole (210) are in contact with each other and communicate with each other.

8. The electronic expansion valve assembly according to claim 7, characterized in that: The first mounting part (25) and / or the second mounting part (26) are provided with mounting limiting parts (120) so as to limit and guide the installation process of the first mounting part (25) and the second mounting part (26).

9. The electronic expansion valve assembly according to claim 3, characterized in that: The first sleeve (21) is further provided with a first wire-passing structure (140), and the second sleeve (22) is provided with a second wire-passing structure (220). The first wire-passing structure (140) includes a first wire-passing cavity, and the second wire-passing structure (220) includes a second wire-passing cavity. The first wire-passing cavity and the second wire-passing cavity are opposite to and connected to each other so as to accommodate the wire passing through them. The first wire-passing structure (140) and the second wire-passing structure (220) are also connected to a wire-passing hole (130). The wire-passing hole (130) is connected to the first wire-passing cavity and / or the second wire-passing cavity so as to allow the wire to pass through.

10. An air conditioner, characterized in that: Includes the electronic expansion valve assembly according to any one of claims 1-9.

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