Electronic expansion valve and refrigeration equipment

Abstract

The utility model discloses an electronic expansion valve and refrigeration equipment, relates to refrigeration technical field, wherein the electronic expansion valve comprises a valve body and a coil assembly, the outer wall of the valve body is provided with a mounting rack, the coil assembly is sleeved on the valve body, the coil assembly comprises a stator part and a plastic package part, the plastic package part comprises a wrapping part and a fixing part which are integrally formed by injection molding, the coating part coats the stator part, and the fixing part is mounted on the mounting frame; according to the technical scheme of the utility model, an existing fixing structure used for fixing the coil assembly and the mounting frame and the plastic package part are integrally formed, so that complex processes such as welding and secondary injection molding are omitted to fix the coil assembly, and the mounting efficiency is improved; and the integrality and the stability of the electronic expansion valve structure are enhanced through the design of integral injection molding.

Description

Technical Field

[0001] This utility model relates to the field of refrigeration technology, and in particular to an electronic expansion valve and a refrigeration device. Background Technology

[0002] In existing technology, electronic expansion valves include a valve body, a coil component, and a rotor component. The coil component, when energized, generates a magnetic field that drives the rotor component to rotate, thereby moving the valve core component within the valve body and adjusting the valve opening. The coil component is fixed to the valve body via a snap-fit ​​assembly using a fixing structure. This fixing structure is installed onto the coil component after injection molding, then laser-welded for positioning, and finally encapsulated with epoxy resin to ensure the positioning strength of the fixing structure. This process results in a complex installation process and low installation efficiency. Utility Model Content

[0003] The main purpose of this invention is to provide an electronic expansion valve and a refrigeration device, which aims to simplify the installation process of a fixed structure.

[0004] To achieve the above objectives, the electronic expansion valve proposed in this utility model includes:

[0005] The valve body has a mounting bracket installed on its outer wall;

[0006] A coil assembly is fitted onto the valve body. The coil assembly includes a stator component and a plastic encapsulation part. The plastic encapsulation part includes an integrally injection-molded covering part and a fixing part. The covering part covers the stator component, and the fixing part is mounted on the mounting bracket.

[0007] In one embodiment, the material of the encapsulated portion is set to a thermoplastic material.

[0008] In one embodiment, the material of the encapsulation portion is set to PBT or PPS.

[0009] In one embodiment, the fixing part includes a base and a fastening platform protruding from the base, and the mounting bracket has a mounting hole, with the fastening platform engaging with the mounting hole.

[0010] In one embodiment, the thickness of the base is H, wherein H satisfies 0.5mm ≤ H ≤ 3mm.

[0011] In one embodiment, the mounting bracket includes a sleeve portion fitted onto the valve body and a mounting plate abutting against the plastic seal portion, and the mounting hole is formed in the mounting plate.

[0012] In one embodiment, a clearance space is formed between the side of the covering portion near the mounting plate and the mounting plate.

[0013] In one embodiment, the fixing portion further includes an extension portion extending from the encapsulated portion in a direction away from the covering portion, and the base portion is connected to the encapsulated portion through the extension portion.

[0014] In one embodiment, the stator component is provided with a pin extending from the outer periphery of the stator component, the pin being used to connect to an external wire of the electronic expansion valve.

[0015] In one embodiment, the encapsulated portion is further provided with a conduit for leading out a wire, the conduit extending toward a side away from the stator component, and the conduit and the fixing portion being located on opposite sides of the stator component in the axial direction.

[0016] This utility model also proposes a refrigeration device, which includes an electronic expansion valve, the electronic expansion valve including a valve body and a coil assembly, and a mounting bracket installed on the outer wall of the valve body; the coil assembly is sleeved on the valve body, the coil assembly including a stator component and a plastic-sealed part, the plastic-sealed part including an integrally injection-molded covering part and a fixing part, the covering part covering the stator component, the fixing part being located on one side of the covering part, and the fixing part being installed on the mounting bracket.

[0017] The technical solution of this utility model adopts the method of integrally molding the existing fixing structure used to fix the coil assembly and mounting bracket with the plastic encapsulation part, thereby eliminating the need for complex processes such as welding and secondary injection molding to fix the coil assembly, improving installation efficiency, and the integral injection molding design enhances the integrity and stability of the electronic expansion valve structure. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 This is a structural schematic diagram of the electronic expansion valve of this utility model from a cross-sectional perspective;

[0020] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0021] Figure 3 This is a schematic diagram of the structure of an electronic expansion valve;

[0022] Figure 4 This is a schematic diagram of the coil assembly.

[0023] Figure 5A schematic diagram showing the structure for the valve body and mounting bracket to mate;

[0024] Figure 6 for Figure 5 A schematic diagram of the mounting bracket.

[0025] Explanation of icon numbers:

[0026] 100. Electronic expansion valve; 1. Valve body; 2. Mounting bracket; 21. Socket; 22. Mounting plate; 221. Mounting hole; 200. Coil assembly; 3. Stator component; 4. Plastic encapsulation part; 41. Covering part; 411. Clearance space; 42. Fixing part; 421. Base; 422. Buckle; 423. Extension part; 43. Conduit; 5. Pin; 6. Wire.

[0027] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0029] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0030] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0031] In existing technology, electronic expansion valves include a valve body, a coil component, and a rotor component. The coil component, when energized, generates a magnetic field that drives the rotor component to rotate, thereby moving the valve core component within the valve body and adjusting the valve opening. The coil component is fixed to the valve body via a snap-fit ​​assembly using a fixing structure. This fixing structure is installed onto the coil component after injection molding, then laser-welded for positioning, and finally encapsulated with epoxy resin to ensure the positioning strength of the fixing structure. This process results in a complex installation process and low installation efficiency.

[0032] In existing technology, electronic expansion valves include a valve body, a coil component, and a rotor component. The coil component, when energized, generates a magnetic field that drives the rotor component to rotate, thereby moving the valve core component within the valve body and adjusting the valve opening. The coil component is fixed to the valve body via a snap-fit ​​assembly using a fixing structure. This fixing structure is installed onto the coil component after injection molding, then laser-welded for positioning, and finally encapsulated with epoxy resin to ensure the positioning strength of the fixing structure. This process results in a complex installation process and low installation efficiency.

[0033] In view of this, the present invention proposes an electronic expansion valve 100.

[0034] Please see Figures 1 to 3 In one embodiment of the present invention, the electronic expansion valve 100 includes a valve body 1 and a coil assembly 200. A mounting bracket 2 is installed on the outer wall of the valve body 1. The coil assembly 200 is sleeved on the valve body 1. The coil assembly 200 includes a stator component 3 and a plastic sealing part 4. The plastic sealing part 4 includes an integrally injection-molded covering part 41 and a fixing part 42. The covering part 41 covers the stator component 3. The fixing part 42 is located on one side of the covering part 41 and is mounted on the mounting bracket 2.

[0035] It should be noted that the electronic expansion valve 100 is commonly used in refrigeration equipment and systems, mainly in air conditioners, to regulate the flow of refrigerant entering the refrigeration equipment.

[0036] The valve body 1 and the mounting bracket 2 are either fixedly connected or detachably connected. In this embodiment, the valve body 1 and the mounting bracket 2 are fixedly connected by the fixing part 42. When the connection between the fixing structure and the mounting bracket 2 is released, the mounting bracket 2 can be removed from the valve body 1.

[0037] As mentioned above, typically, the fixing structure used to secure the coil assembly 200 and the mounting bracket 2 is independently set up and is first laser-welded to the stator component 3, and then integrated through secondary injection molding and encapsulation 4. However, in this embodiment, to save installation steps, the encapsulation 4 and the fixing structure are injection molded together; that is, the encapsulation 4 includes an integrally injection-molded covering part 41 and a fixing part 42. This avoids the complex processes of welding and epoxy resin potting required in traditional technologies to fix the coil assembly 200, thereby improving installation efficiency. Furthermore, the integral injection molding design enhances the overall integrity and stability of the structure, reducing the risk of failure due to loosening or damage to the fixing structure. Compared with the prior art, the technical solution of this application not only simplifies the installation process but also improves installation efficiency and structural reliability. Alternatively, the mounting part can be formed by secondary injection molding of the covering part 41 onto the mounting part.

[0038] The technical solution of this utility model adopts the method of integrally forming the existing fixing structure used to fix the coil assembly 200 and the mounting bracket 2 with the encapsulation part 4, thereby eliminating the need for complex processes such as welding and secondary injection molding to fix the coil assembly 200, improving installation efficiency, and the integral injection molding design enhances the integrity and stability of the electronic expansion valve 100 structure.

[0039] In one embodiment, please refer to Figure 1 and Figure 3 The material of the encapsulation part 4 is set to a thermoplastic material.

[0040] It should be noted that thermoplastic materials possess excellent high-temperature resistance, capable of withstanding the heat generated by electromagnetic drive and refrigerant flow during the operation of the electronic expansion valve 100. Furthermore, thermoplastic materials exhibit high toughness, high strength, and wear resistance, enabling them to withstand the mechanical stress generated when the stator magnetic field drives the rotor, reducing wear during long-term operation and extending component lifespan. Additionally, thermoplastic materials can be processed into complex shapes through injection molding and other processes, suitable for the precision structural requirements of the stator's encapsulation section, while also offering high production efficiency and controllable costs. Thermoplastic materials can be PP, PVC, PBT, or PPS, etc.

[0041] Furthermore, in one embodiment, please continue to refer to... Figure 1 and Figure 3 The material of the encapsulation part 4 is set to PBT or PPS.

[0042] In a preferred embodiment, the material of the encapsulation part 4 can be processed using injection molding. During injection molding, PBT or PPS material is heated to a molten state and then injected into a mold. After cooling, the desired encapsulation structure is formed. Through this process, the covering part 41 and the fixing part 42 can be tightly combined to form an integrated structure, thereby enhancing its mechanical strength and stability. In addition, injection molding has the advantages of high production efficiency and low cost, making it suitable for mass production.

[0043] Therefore, by using PBT or PPS as the material for the encapsulation part 4, this application solves the problem of insufficient structural strength when using plastic materials for fixing, and also prevents the fixing part 42 from being easily worn away. Compared with the prior art, the technical solution of this application has significant advantages. First, the high heat resistance and chemical resistance of PBT and PPS materials enable the encapsulation part 4 to work stably for a long time in harsh environments, extending the service life of the electronic expansion valve 100. Second, through the injection molding process, the encapsulation part 4 and the stator component 3 form an integrated structure, further enhancing its mechanical strength and stability, and reducing failures caused by structural loosening or damage. Finally, the technical solution of this application simplifies the production process, improves production efficiency, and reduces production costs.

[0044] In one embodiment, please refer to Figure 2 and Figure 3 The fixing part 42 includes a base 421 and a fastening platform 422 protruding from the base 421. The mounting bracket 2 has a mounting hole 221, and the fastening platform 422 is engaged with the mounting hole 221.

[0045] The base 421 serves as the main support for the fixing part 42, and the latching platform 422 protrudes from the base 421 to engage with the mounting hole 221 on the mounting bracket 2. The mounting bracket 2 includes a sleeve portion 21 fitted onto the valve body 1 and a mounting plate 22 abutting against the plastic seal portion 4, with the mounting hole 221 formed on the mounting plate 22. A clearance space 411 is provided on the side of the covering portion 41 near the mounting hole 221 to facilitate the engagement of the latching platform 422 with the mounting hole 221. The fixing part 42 also includes an extension portion 423 extending from the plastic seal portion 4 in a direction away from the covering portion 41, and the base 421 is connected to the plastic seal portion 4 via the extension portion 423.

[0046] Specifically, the base 421 can be integrally formed with the encapsulation part 4 through injection molding, while the fastener 422 can be formed on the base 421 through mold design. The shape and size of the mounting hole 221 can be adjusted according to the design of the fastener 422 to ensure that the fastener 422 can be smoothly inserted and firmly fixed. The design of the clearance space 411 can avoid interference between the covering part 41 and the mounting hole 221, ensuring that the fastener 422 can be smoothly inserted into the mounting hole 221. The design of the extension part 423 can increase the connection strength between the fixing part 42 and the encapsulation part 4, preventing the fixing part 42 from loosening or falling off during use.

[0047] Therefore, through the design of the base 421 and the latching platform 422, this application allows the coil assembly 200 to directly engage with the mounting hole 221 on the mounting bracket 2 via the latching platform 422, thereby simplifying the installation process of the fixing part 42. The base 421 provides stable support, while the latching platform 422 and the mounting hole 221 ensure the firmness of the fixing part 42, avoiding complex welding and potting processes and improving installation efficiency. Compared with the prior art, the technical solution of this application not only simplifies the installation process but also improves installation efficiency and the stability of the fixing structure, demonstrating significant practicality and innovation.

[0048] In one embodiment, please refer to Figure 2 The thickness of the base 421 is H, and H satisfies 0.5mm≤H≤3mm.

[0049] It should be noted that the thickness H of the base 421 is the distance between the side of the base 421 away from the stator component 3 and the side of the base 421 facing the stator component 3. The thickness H of the base 421 is limited to between 0.5 mm and 3 mm. This range is chosen to ensure the structural strength of the fixing part 42 while avoiding the use of excessive material, thereby achieving material economy and structural lightweight. By precisely controlling the thickness of the base 421, it can be ensured that the fixing part 42 will not deform or be damaged when subjected to stress during installation and use, while also avoiding unnecessary weight and cost increases due to excessive thickness. Specifically, the thickness of the base 421 can be precisely controlled through the injection molding process, where the design of the injection mold needs to consider the shrinkage rate of the material and the dimensional stability after molding. As a preferred embodiment, the thickness of the base 421 can be achieved by adjusting the cavity size of the injection mold to ensure that the thickness of the base 421 after molding is between 0.5 mm and 3 mm. In addition, the thickness of the base 421 can also be finely adjusted through subsequent machining or heat treatment processes to meet specific strength requirements.

[0050] This paper provides a brief and in-depth overview of the thickness of the base 421. This technical solution addresses the challenge of ensuring structural strength while avoiding material waste by limiting the thickness range of the base 421. Specifically, the thickness of the base 421 is precisely controlled between 0.5mm and 3mm. This range is chosen based on a comprehensive consideration of the material's mechanical properties and practical application requirements. Through this technique, the fixing part 42 maintains sufficient strength under stress during installation and use, preventing deformation or damage due to insufficient thickness. Simultaneously, the thickness of the base 421 does not add unnecessary weight and cost due to excessive thickness, thus achieving both material economy and structural lightweighting. Compared to existing technologies, this solution simplifies the installation process of the fixing structure by precisely controlling the thickness of the base 421, improves installation efficiency, and avoids the complex steps required in traditional processes, such as laser welding and epoxy resin potting, to ensure the positioning strength of the fixing structure. Therefore, this technical solution not only improves product reliability and service life but also reduces production costs and process complexity.

[0051] In one embodiment, please refer to Figure 1 , Figure 5 and Figure 6 The mounting bracket 2 includes a sleeve portion 21 sleeved on the valve body 1 and a mounting plate 22 abutting against the plastic sealing portion 4, and the mounting hole 221 is formed in the mounting plate 22.

[0052] Specifically, the socket 21 can be fitted with the valve body 1 in various ways. For example, the socket 21 can be designed as an annular structure, with its inner diameter matching the outer diameter of the valve body 1, thus achieving a tight fit. Furthermore, the socket 21 can also be designed with a structure featuring an elastic snap-fit, allowing for quick installation and removal from the valve body 1 through elastic deformation. The mounting plate 22 can also have various designs; for example, it can be designed as a flat plate or an inclined plate with a certain angle to adapt to different installation requirements. The shape and number of mounting holes 221 can also be adjusted according to actual needs; for example, they can be designed as circular holes, square holes, or polygonal holes to meet the shape and number requirements of the fasteners 422 of different fixing parts 42.

[0053] Therefore, the technical solution of this application designs the mounting bracket 2 into two parts: a sleeve part 21 and a mounting plate 22. The sleeve part 21 is directly fitted onto the valve body 1, while the mounting plate 22 abuts against the plastic sealing part 4, and mounting holes 221 are formed on the mounting plate 22. This design simplifies the installation structure of the coil assembly 200 and the valve body 1, making the installation process more direct and efficient. The fitting of the sleeve part 21 with the valve body 1 ensures the stability of the mounting bracket 2, while the mounting holes 221 on the mounting plate 22 facilitate the snap-fit ​​engagement of the fastening platform 422 of the fixing part 42 with the mounting holes 221, further simplifying the installation steps and improving installation efficiency. Compared with the prior art, the technical solution of this application avoids complex fixing structure installation processes, reduces installation steps, improves installation efficiency, and ensures the stability and reliability of the installation.

[0054] In one embodiment, please refer to Figure 2 The side of the covering part 41 near the mounting plate 22 forms a clearance space 411 with the mounting plate 22.

[0055] The design of the clearance space 411 ensures that the covering part 41 will not collide or rub against the mounting hole 221 during installation, thus ensuring smooth installation. This technical feature, through the adjustment of physical space, avoids structural conflicts and improves the efficiency and reliability of installation.

[0056] Specifically, the clearance space 411 can be designed in various shapes and sizes to accommodate different installation requirements. For example, the clearance space 411 can be rectangular, circular, or other geometric shapes, and its depth and width can be adjusted according to the specific dimensions of the mounting hole 221. As a preferred embodiment, the depth of the clearance space 411 can be slightly larger than the diameter of the mounting hole 221 to ensure sufficient clearance during installation. Furthermore, the edges of the clearance space 411 can be designed with chamfers or rounded corners to reduce stress concentration and improve structural durability.

[0057] Therefore, the technical solution of this application effectively solves the interference problem between the covering part 41 and the mounting hole 221 through the design of the clearance space 411. The existence of the clearance space 411 allows the covering part 41 to pass smoothly through the mounting hole 221 during installation, avoiding installation difficulties or damage caused by structural conflicts. Compared with the prior art, the technical solution of this application simplifies the installation process, improves installation efficiency, and ensures the reliability and stability of the installation through the adjustment of physical space.

[0058] In one embodiment, please continue to refer to Figure 2 The fixing part 42 further includes an extension part 423 extending from the sealing part 4 in a direction away from the covering part 41, and the base part 421 is connected to the sealing part 4 through the extension part 423.

[0059] Specifically, the extension 423 can be designed in various shapes and structures. For example, the extension 423 can be straight, curved, or wavy to increase the contact area with the encapsulated portion 4. The length and width of the extension 423 can be adjusted according to actual needs to ensure the connection strength between the base 421 and the encapsulated portion 4. Furthermore, the material of the extension 423 can be the same as that of the encapsulated portion 4, or a different material can be used to enhance the strength of the connection. For example, the extension 423 can be made of high-strength plastic or metal to improve the overall mechanical properties.

[0060] A brief and detailed summary of the above technical solution is provided. The design of the extension portion 423 increases the connection area and strength between the fixing portion 42 and the encapsulated portion 4, thereby improving the connection's firmness. This design solves the technical problem of an unstable connection between the fixing portion 42 and the encapsulated portion 4. Compared with existing technologies, this technical solution simplifies the installation process, improves installation efficiency, and enhances the reliability and durability of the connection through the design of the extension portion 423. Therefore, this technical solution can effectively improve the performance and stability of the electronic expansion valve 100 in practical applications.

[0061] In one embodiment, please refer to Figure 4 The stator component 3 is provided with a pin 5 extending out of the outer periphery of the stator component 3, and the pin 5 is used to connect to the external wire 6 of the electronic expansion valve 100.

[0062] The pin 5 can be designed in various forms; for example, it can be a straight pin, a bent pin, or a pin with a specific shape to adapt to different connection requirements. The material of the pin 5 can be a metal with good conductivity, such as copper or copper alloy, to ensure stable current transmission. Furthermore, the surface of the pin 5 can be plated, such as with gold or silver, to improve its corrosion resistance and conductivity. The pin 5 can be installed by soldering, crimping, or mating, depending on the connection requirements and process feasibility.

[0063] This technical solution achieves direct connection with the external conductor 6 by setting a pin 5 extending from the outer periphery of the stator component 3. This design simplifies the connection process and improves the reliability and efficiency of the connection. The design of the pin 5 makes the connection between the stator component 3 and the external conductor 6 more secure, reduces the failure rate during the connection process, and also facilitates installation and maintenance. Compared with the prior art, this solution avoids complex fixing structures and installation processes, significantly improves production efficiency, and reduces manufacturing costs.

[0064] In one embodiment, please refer to Figure 1 and Figure 3The encapsulated part 4 is also provided with a wire tube 43 for leading out the wire 6. The wire tube 43 extends toward the side away from the stator component 3. The wire tube 43 and the fixing part 42 are respectively located on opposite sides of the stator component 3 in the axial direction.

[0065] Specifically, the placement of the conduit 43 allows the wire 6 to be led out from one side of the encapsulated portion 4, avoiding interference between the wire 6 and the fixing portion 42 and simplifying the wire 6 lead-out process. The conduit 43 and the fixing portion 42 are located on opposite sides of the stator component 3 along the axial direction. This arrangement makes the lead-out of the wire 6 more convenient without affecting the installation and positioning of the fixing portion 42. The conduit 43 can take various shapes and sizes, such as round, square, or other suitable shapes, to adapt to different wire 6 lead-out requirements. The material of the conduit 43 can be the same as that of the encapsulated portion 4, or it can be other insulating materials to ensure the safe lead-out of the wire 6.

[0066] As a preferred embodiment, the conduit 43 can be integrally injection molded with the encapsulation part 4, which can reduce assembly steps and improve production efficiency. In addition, the conduit 43 can be provided with guide grooves or guide ribs to further guide the lead wire 6 out and prevent the lead wire 6 from bending or being damaged during the lead-out process.

[0067] Therefore, this application solves the technical problem of inconvenient wire lead-out in the electronic expansion valve 100 by setting the wire conduit 43. Compared with the prior art, the technical solution of this application simplifies the wire lead-out process, improves installation efficiency, and ensures the safety and reliability of the wire 6. This design is not only applicable to the electronic expansion valve 100, but can also be extended to other electronic devices that require wire lead-out, and has broad application prospects.

[0068] This utility model also proposes a refrigeration device, which includes an electronic expansion valve 100. The specific structure of the electronic expansion valve 100 is as described in the above embodiments. Since this refrigeration device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0069] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An electronic expansion valve, characterized in that, include: The valve body has a mounting bracket installed on its outer wall; A coil assembly is fitted onto the valve body. The coil assembly includes a stator component and a plastic encapsulation part. The plastic encapsulation part includes an integrally injection-molded covering part and a fixing part. The covering part covers the stator component, and the fixing part is mounted on the mounting bracket.

2. The electronic expansion valve as described in claim 1, characterized in that, The material of the encapsulated part is set to thermoplastic material.

3. The electronic expansion valve as described in claim 2, characterized in that, The material of the encapsulation part is set to PBT or PPS.

4. The electronic expansion valve as described in claim 1, characterized in that, The fixing part includes a base and a fastening platform protruding from the base. The mounting bracket has a mounting hole, and the fastening platform engages with the mounting hole.

5. The electronic expansion valve as described in claim 4, characterized in that, The thickness of the base is H, and H satisfies 0.5mm≤H≤3mm.

6. The electronic expansion valve as described in claim 4, characterized in that, The mounting bracket includes a sleeve portion fitted onto the valve body and a mounting plate abutting against the plastic seal portion, and the mounting hole is formed in the mounting plate.

7. The electronic expansion valve as described in claim 6, characterized in that, The side of the covering portion closest to the mounting plate forms a clearance space with the mounting plate.

8. The electronic expansion valve as described in claim 4, characterized in that, The fixing portion further includes an extension portion extending from the sealing portion in a direction away from the covering portion, and the base portion is connected to the sealing portion through the extension portion.

9. The electronic expansion valve as described in claim 1, characterized in that, The stator component is provided with a pin extending from the outer periphery of the stator component, the pin being used to connect to the external wire of the electronic expansion valve.

10. The electronic expansion valve as described in claim 9, characterized in that, The encapsulated part is also provided with a wire tube for leading out wires. The wire tube extends toward the side away from the stator component. The wire tube and the fixing part are respectively located on opposite sides of the stator component in the axial direction.

11. A refrigeration device, characterized in that, Includes the electronic expansion valve as described in any one of claims 1 to 10.

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