Expansion valve assembly, evaporator and air conditioner

Abstract

The utility model relates to the technical field of air conditioners, and discloses an expansion valve assembly, an evaporator and an air conditioner. The expansion valve assembly comprises an expansion valve body. The first connecting pipe comprises a first connecting section, a second connecting section and a third connecting section which are connected in sequence, and the first connecting section is connected with the expansion valve body; the included angle between the first connecting section and the second connecting section is an obtuse angle, and / or the included angle between the second connecting section and the third connecting section is an obtuse angle. According to the expansion valve assembly, the included angle between the first connecting section and the second connecting section is the obtuse angle and / or the included angle between the second connecting section and the third connecting section is the obtuse angle, the degree that a working medium impacts a conveying pipeline when flowing through the first connecting pipe can be reduced, and therefore noise generated by the expansion valve assembly is reduced; the problem that noise generated by the expansion valve assembly is large is solved.

Description

Technical Field

[0001] This application belongs to the field of air conditioner technology, and particularly relates to expansion valve assemblies, evaporators and air conditioners. Background Technology

[0002] In air conditioning systems, the expansion valve, as a key actuator, regulates parameters such as the temperature and pressure of the working fluid by adjusting its flow rate, thereby ensuring the stable operation of the air conditioning circulation system. In related technologies, one expansion valve assembly includes an expansion valve and a delivery pipe connected to the expansion valve. When the working fluid flows through the expansion valve, changes in its shape and pressure cause it to impact the delivery pipe, resulting in significant noise generation from the expansion valve assembly.

[0003] Therefore, improvements to existing technologies are necessary.

[0004] The above information is provided as background information only to aid in understanding this disclosure and does not constitute an assertion or admission that any of the above content can be used as prior art relative to this disclosure. Utility Model Content

[0005] This application provides an expansion valve assembly, an evaporator, and an air conditioner to solve the problem of excessive noise generated by the expansion valve assembly.

[0006] In a first aspect, embodiments of this application provide an expansion valve assembly, including:

[0007] Expansion valve body;

[0008] The first connecting pipe includes a first connecting segment, a second connecting segment, and a third connecting segment connected in sequence. The first connecting segment is connected to the expansion valve body. The angle between the first connecting segment and the second connecting segment is an obtuse angle, and / or the angle between the second connecting segment and the third connecting segment is an obtuse angle.

[0009] In one possible implementation, a first filter is provided on the second connecting segment.

[0010] In one possible implementation, the second connecting section is a circular tube, the cross-section of the first filter is circular, the diameter of the second connecting section is d1, the diameter of the cross-section of the first filter is D1, and 1≤D1 / d1≤1.5.

[0011] In one possible implementation, the angle between the first connecting segment and the second connecting segment is α, and the angle between the second connecting segment and the third connecting segment is β, where 135°≤α≤170° and 135°≤β≤170°.

[0012] In one possible implementation, the length of the first connecting pipe in the first direction is L1, where 65mm ≤ L1 ≤ 95mm.

[0013] In one possible implementation, the expansion valve assembly further includes a second connecting pipe, which includes a fourth connecting section, a fifth connecting section, and a sixth connecting section connected in sequence. The fourth connecting section is connected to the expansion valve body, and the sixth connecting section is used to connect to an external heat exchanger.

[0014] In one possible implementation, a second filter is provided on the fifth connecting section, the fifth connecting section is a straight pipe, and the length of the fifth connecting section is L2, 70mm≤L2≤140mm.

[0015] In one possible implementation, the fifth connecting segment is a circular tube, the cross-section of the second filter is circular, the diameter of the fifth connecting segment is d2, the diameter of the cross-section of the second filter is D2, and 1≤D2 / d2≤2.

[0016] In one possible implementation, the sixth connecting segment is a bend with a bending radius of R, where 32mm ≤ R ≤ 64mm.

[0017] Secondly, embodiments of this application also provide an evaporator, the evaporator including an expansion valve assembly as described in any of the preceding claims.

[0018] In one possible implementation, the evaporator further includes a heat exchanger assembly, a capillary assembly, a gas collecting pipe assembly, and a buffer element. The capillary assembly is connected to the first connecting pipe, the heat exchanger assembly is connected to the capillary assembly, the gas collecting pipe assembly is connected to the heat exchanger assembly, and the buffer element is connected to the gas collecting pipe assembly and the first connecting pipe.

[0019] In one possible implementation, the distance between the expansion valve body and the capillary assembly in the second direction is L3, where 150mm ≤ L3 ≤ 250mm.

[0020] In one possible implementation, the hardness of the buffer element is in the range of Shore A 25-35.

[0021] Thirdly, embodiments of this application also provide an air conditioner, the air conditioner including an evaporator as described in any of the above claims.

[0022] Compared with the prior art, this application has the following beneficial effects:

[0023] The expansion valve assembly provided in this application reduces the degree of impact of the working fluid on the conveying pipeline when the working fluid flows through the first connecting pipe by making the included angle between the first connecting section and the second connecting section obtuse and / or making the included angle between the second connecting section and the third connecting section obtuse. This reduces the noise generated by the expansion valve assembly and solves the problem of excessive noise generated by the expansion valve assembly. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without creative effort.

[0025] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings. In the following description, the same reference numerals denote the same parts.

[0026] Figure 1 This is a schematic diagram of the structure of the expansion valve assembly provided in the embodiments of this application.

[0027] Figure 2 This is a schematic diagram of the structure of an evaporator provided in an embodiment of this application.

[0028] In the diagram: 1. Expansion valve body; 2. First connecting pipe; 21. First connecting section; 22. Second connecting section; 23. Third connecting section; 3. First filter; 4. Second connecting pipe; 41. Fourth connecting section; 42. Fifth connecting section; 43. Sixth connecting section; 5. Second filter; 6. Heat exchanger assembly; 7. Capillary tube assembly; 8. Gas collecting pipe assembly; 9. Buffer component. Detailed Implementation

[0029] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended only as examples, not as limiting the scope of protection of this application.

[0030] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features.

[0031] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0032] This application provides an expansion valve assembly, an evaporator, and an air conditioner to solve the problem of excessive noise generated by the expansion valve assembly. The following description is in conjunction with the accompanying drawings.

[0033] Please see Figure 1 This application provides an expansion valve assembly, including an expansion valve body 1 and a first connecting pipe 2. The first connecting pipe 2 includes a first connecting segment 21, a second connecting segment 22 and a third connecting segment 23 connected in sequence. The first connecting segment 21 is connected to the expansion valve body 1. The included angle between the first connecting segment 21 and the second connecting segment 22 is an obtuse angle, and / or the included angle between the second connecting segment 22 and the third connecting segment 23 is an obtuse angle.

[0034] This expansion valve assembly, by making the angle between the first connecting section 21 and the second connecting section 22 an obtuse angle and / or the angle between the second connecting section 22 and the third connecting section 23 an obtuse angle, can reduce the degree of impact of the working medium on the conveying pipeline when the working medium flows through the first connecting pipe 2, thereby reducing the noise generated by the expansion valve assembly and solving the problem of excessive noise generated by the expansion valve assembly.

[0035] Please see Figure 1 The included angle between the first connecting segment 21 and the second connecting segment 22 is α, and the included angle between the second connecting segment 22 and the third connecting segment 23 is β, where 135°≤α≤170° and 135°≤β≤170°. In this embodiment, the value of α is 135° and the value of β is 135°. In some embodiments of this application, the value of α is any one of 140°, 145°, 150°, 155°, 160°, 165°, and 170°, and the value of β is any one of 140°, 145°, 150°, 155°, 160°, 165°, and 170°. By ensuring that 135°≤α≤170° and 135°≤β≤170°, it is possible not only to reduce the impact of the working fluid flowing through the first connecting pipe 2 on the first connecting pipe 2, thereby reducing the noise generated by the expansion valve assembly, but also to reduce the occurrence of the expansion valve assembly occupying too much space and being difficult to install in the air conditioner due to excessively large values ​​of α and β.

[0036] Please see Figure 1A first filter 3 is provided on the second connecting section 22. The first filter 3 can disperse large bubbles in the working fluid into smaller bubbles, thereby reducing the vibration and noise generated by the working fluid impacting the electronic expansion valve. In this embodiment, the first connecting pipe 2 is a circular pipe, the cross-section of the first filter 3 is circular, the diameter of the second connecting section 22 is d1, and the diameter of the cross-section of the first filter 3 is D1, where 1 ≤ D1 / d1 ≤ 1.5. In this embodiment, the value of D1 / d1 is 1.3. In another embodiment of this application, the value of D1 / d1 is any one of 1, 1.1, 1.2, 1.4, and 1.5. By ensuring that 1 ≤ D1 / d1 ≤ 1.5, the flow noise caused by the abrupt change in pipe diameter between the second connecting section 22 and the first filter 3 can be reduced.

[0037] Please see Figure 1 The length of the first connecting pipe 2 in the first direction is L1. Specifically, the length of the end of the first connecting segment 21 away from the second connecting segment 22 and the end of the third connecting segment 23 away from the second connecting segment 22 in the first direction is L1, where 65mm ≤ L1 ≤ 95mm. In this embodiment, the value of L1 is 80mm. In some embodiments of this application, the value of L1 is any one of 65mm, 70mm, 75mm, 85mm, 90mm, and 95mm. By ensuring that 65mm ≤ L1 ≤ 95mm, not only can the rising of air bubbles be reduced and the mixing of air bubbles and liquid refrigerant be made more uniform when the working fluid flows through the first connecting segment 21, thereby reducing noise, but the space occupied by the expansion valve assembly can also be reduced, thus shrinking the volume of the expansion valve assembly. It should be noted that in this embodiment, the first direction is the horizontal direction.

[0038] Please see Figure 1 The expansion valve assembly also includes a second connecting pipe 4, which includes a fourth connecting section 41, a fifth connecting section 42, and a sixth connecting section 43 connected in sequence. The fourth connecting section 41 is connected to the expansion valve body 1, and the sixth connecting section 43 is used to connect to an external heat exchanger.

[0039] Please see Figure 1A second filter 5 is provided on the fifth connecting section. The second filter 5 can disperse large bubbles in the working fluid into smaller bubbles, thereby reducing the vibration and noise generated by the working fluid impacting the electronic expansion valve. In this embodiment, the fifth connecting section 42 is a straight pipe and is arranged vertically. The length of the fifth connecting section 42 is L2, 70mm≤L2≤140mm. In this embodiment, the value of L2 is 80mm. In some embodiments of this application, the value of L2 is any one of 70mm, 90mm, 100mm, 110mm, 120mm, 130mm, and 140mm. By ensuring that 70mm≤L2≤140mm, the gas-liquid two-phase working fluid flowing through the fifth connecting section can be fully mixed in the fifth connecting section, thereby reducing the noise generated by the expansion valve assembly.

[0040] Please see Figure 1 In this embodiment, the fifth connecting section 42 is a circular pipe, the cross-section of the second filter 5 is circular, the diameter of the fifth connecting section 42 is d2, and the diameter of the cross-section of the second filter 5 is D2, where 1 ≤ D2 / d2 ≤ 2. In this embodiment, the value of D2 / d2 is 1.5. In another embodiment of this application, the value of D2 / d2 is any one of 1, 1.1, 1.2, 1.3, 1.4, 1.6, 1.7, 1.8, 1.9, or 2. By ensuring that 1 ≤ D2 / d2 ≤ 2, the flow noise caused by the abrupt change in pipe diameter between the fifth connecting section 42 and the second filter 5 can be reduced.

[0041] Please see Figure 1 In this embodiment, the sixth connecting section is a bend with a bending radius of R, where 32mm ≤ R ≤ 64mm. In this embodiment, the value of R is 48mm. In some embodiments of this application, the value of R is any one of 32mm, 36mm, 40mm, 44mm, 52mm, 56mm, 60mm, and 64mm. By ensuring that 32mm ≤ R ≤ 64mm, the impact of the working fluid flowing into the sixth connecting section from the external heat exchanger on the sixth connecting section can be reduced, thereby reducing the fluid flow noise of the sixth connecting section.

[0042] Please see Figure 2 This application embodiment also provides an evaporator, which includes the expansion valve assembly as described above, as well as a heat exchanger assembly 6, a capillary tube assembly 7, a gas collecting pipe assembly 8, and a buffer element 9. The capillary tube assembly 7 is connected to the first connecting pipe 2, the heat exchanger assembly 6 is connected to the capillary tube assembly 7, the gas collecting pipe assembly 8 is connected to the heat exchanger assembly 6, and the buffer element 9 is connected to the gas collecting pipe assembly 8 and the first connecting pipe 2.

[0043] Please see Figure 2The distance between the expansion valve body 1 and the capillary assembly 7 in the second direction is L3, where 150mm ≤ L3 ≤ 250mm. In this embodiment, the value of L3 is 200mm. In some embodiments of this application, the value of L3 is any one of 150mm, 160mm, 170mm, 180mm, 190mm, 210mm, 220mm, 230mm, 240mm, and 250mm. By ensuring that 150mm ≤ L3 ≤ 250mm, not only are the first connecting pipe 2 and the capillary assembly 7 sufficiently flexible to absorb the vibration generated when the expansion valve body 1 throttles, reducing stress concentration in the pipeline, but the volume of the evaporator can also be reduced. It should be noted that in this embodiment, the second direction is the vertical direction.

[0044] Please see Figure 2 In this embodiment, the buffer 9 is a rubber block. One end of the buffer 9 is fitted onto the gas collecting pipe assembly 8, and the other end is fitted onto the first connecting pipe 2. The hardness range of the buffer 9 is Shore A (a unit of measurement for Shore A hardness tester results, hereinafter omitted) 25-35. In this embodiment, the hardness of the buffer 9 is Shore A 30. In some embodiments of this application, the hardness of the buffer 9 is either Shore A 25 or Shore A 35. By making the hardness range of the buffer 9 Shore A 25-35, not only can the first connecting pipe 2 be fixed, but also the buffer and shock absorption of the first connecting pipe 2 can be achieved.

[0045] This application also provides an air conditioner that includes the evaporator described above. Since this air conditioner has the aforementioned evaporator, it possesses at least some or all of the beneficial effects of the evaporator, which will not be elaborated upon here.

[0046] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0047] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.

Claims

1. An expansion valve assembly, characterized in that, include: Expansion valve body; The first connecting pipe includes a first connecting segment, a second connecting segment, and a third connecting segment connected in sequence. The first connecting segment is connected to the expansion valve body. The angle between the first connecting segment and the second connecting segment is an obtuse angle, and / or the angle between the second connecting segment and the third connecting segment is an obtuse angle.

2. The expansion valve assembly according to claim 1, characterized in that, A first filter is provided on the second connecting section.

3. The expansion valve assembly according to claim 2, characterized in that, The second connecting section is a circular tube, the cross-section of the first filter is circular, the diameter of the second connecting section is d1, the diameter of the cross-section of the first filter is D1, and 1≤D1 / d1≤1.

5.

4. The expansion valve assembly according to claim 1, characterized in that, The angle between the first connecting segment and the second connecting segment is α, and the angle between the second connecting segment and the third connecting segment is β, where 135°≤α≤170° and 135°≤β≤170°.

5. The expansion valve assembly according to claim 1, characterized in that, The length of the first connecting pipe in the first direction is L1, 65mm≤L1≤95mm.

6. The expansion valve assembly according to claim 1, characterized in that, The expansion valve assembly further includes a second connecting pipe, which includes a fourth connecting section, a fifth connecting section, and a sixth connecting section connected in sequence. The fourth connecting section is connected to the expansion valve body, and the sixth connecting section is used to connect to an external heat exchanger.

7. The expansion valve assembly according to claim 6, characterized in that, A second filter is provided on the fifth connecting section. The fifth connecting section is a straight pipe with a length of L2, where 70mm ≤ L2 ≤ 140mm.

8. The expansion valve assembly according to claim 7, characterized in that, The fifth connecting section is a circular tube, the cross-section of the second filter is circular, the diameter of the fifth connecting section is d2, the diameter of the cross-section of the second filter is D2, and 1≤D2 / d2≤2.

9. The expansion valve assembly according to claim 6, characterized in that, The sixth connecting section is a bend, and the bending radius of the sixth connecting section is R, where 32mm≤R≤64mm.

10. An evaporator, characterized in that, The evaporator includes an expansion valve assembly as described in any one of claims 1-9.

11. The evaporator according to claim 10, characterized in that, The evaporator further includes a heat exchanger assembly, a capillary assembly, a gas collecting pipe assembly, and a buffer. The capillary assembly is connected to the first connecting pipe, the heat exchanger assembly is connected to the capillary assembly, the gas collecting pipe assembly is connected to the heat exchanger assembly, and the buffer is connected to the gas collecting pipe assembly and the first connecting pipe.

12. The evaporator according to claim 11, characterized in that, The distance between the expansion valve body and the capillary assembly in the second direction is L3, where 150mm≤L3≤250mm.

13. The evaporator according to claim 11, characterized in that, The hardness range of the buffer is Shore A25-35.

14. An air conditioner, characterized in that, The air conditioner includes an evaporator as described in any one of claims 10-13.

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