Connection structure of refrigerant pipe and case, installation method, and environmental test chamber

Abstract

The application belongs to the technical field of environment simulation, and discloses a connecting structure of a refrigerant pipeline and a box body, a mounting method and an environmental test box. The box body of the connecting structure comprises an inner wall, a thermal insulation layer and an outer wall connected in sequence. The refrigerant pipeline comprises a refrigerant pipe and a protection assembly. The refrigerant pipe penetrates the box body and is connected with a heat exchange assembly inside the box body and a refrigeration assembly outside the box body. The protection assembly penetrates the box body and covers the refrigerant pipe. One end of the protection assembly is welded and fixed with one of the inner wall and the outer wall, and the other end is glued and fixed with the other one. The mounting method is adopted. The protection assembly is welded with the inner wall first, and then the thermal insulation layer and the outer wall are mounted in sequence. After the refrigerant pipe is welded with the refrigeration assembly, the protection assembly is glued with the outer wall. The problem that gaps are easily generated at the refrigerant pipe penetrating the box body due to vibration, and the thermal insulation layer and the like lose thermal insulation property due to high temperature welding is solved. The failure of the thermal insulation layer, gas leakage and moisture intrusion are prevented, the stable operation of the refrigerant pipe is ensured, and the stability and accuracy of the temperature inside the box body are maintained.

Description

Technical Field

[0001] This invention relates to the field of environmental simulation technology, and in particular to the connection structure and installation method of refrigerant pipelines and enclosures, as well as an environmental test chamber. Background Technology

[0002] Environmental test chambers are primarily used to simulate natural environmental conditions. By placing samples inside, relevant tests are conducted to evaluate the reliability, stability, and other performance characteristics of products under different environments. Temperature is a crucial factor; therefore, environmental test chambers are equipped with a refrigeration system to simulate ambient temperatures. This refrigeration system typically consists of a refrigeration unit located outside the chamber and an evaporator inside, connected by refrigerant piping. The refrigerant circulates within the piping, achieving heat transfer and cooling functions.

[0003] Currently, such as Figure 4 As shown, the walls of an environmental test chamber are generally composed of an inner wall 210, an insulation layer 220, and an outer wall 230. In existing technology, holes are typically drilled in the chamber wall to allow refrigerant pipes 110 to pass through. A fixing adhesive 120 is applied between the refrigerant pipes 110 and the hole wall near the inner side of the environmental test chamber, and an insulation sleeve 130 is used to cover the portion away from the inner side of the environmental test chamber. When the environmental test chamber is subjected to vibration during transportation or operation, gaps often appear between the end of the insulation sleeve 130 and the fixing adhesive 120, as well as between the refrigerant pipes 110, the hole wall, and the fixing adhesive 120. During environmental test chamber testing, especially when conducting tests involving humidity, moisture inside the environmental test chamber can enter between the refrigerant pipes 110 and the insulation layer 220 of the chamber wall through these gaps. The moisture frosts, turns into water, and penetrates the insulation layer 220, causing it to fail. Furthermore, when the original refrigerant piping is welded to the refrigeration unit and evaporator, the high temperature can cause the insulation layer 220 to carbonize and the fixing adhesive 120 to deform. This requires removing the carbonized insulation layer 220 and refilling it, wasting materials and time, increasing costs, and causing the fixing adhesive 120 to deform, creating gaps and leaks. This allows moisture to easily enter the insulation layer 220, causing it to lose its insulation effect. All of these factors will cause temperature fluctuations inside the chamber, making it difficult to meet test requirements, affecting the accuracy and reliability of the environmental test chamber in simulating natural ambient temperatures, and thus negatively impacting the accuracy of product test results. Summary of the Invention

[0004] The first objective of this invention is to provide a connection structure between refrigerant piping and the housing, which solves the problems of gaps easily generated at the refrigerant piping penetration points in the housing due to vibration, and the deformation of the insulation layer and related fixing structures due to high temperatures during welding. This prevents insulation layer failure, air leakage, and moisture intrusion, ensures stable operation of the refrigerant piping, and maintains a stable and accurate internal temperature environment in the housing.

[0005] The second object of the present application is to provide a mounting method of the connecting structure of the refrigerant pipeline and the cabinet, which can avoid the gap caused by vibration at the cabinet penetration of the refrigerant pipeline, and prevent the high temperature from damaging the thermal insulation layer and the related fixing structure during the welding process of the refrigerant pipeline and the refrigeration assembly and the heat exchange assembly, thereby reducing material loss, reducing maintenance time, ensuring the continuous and effective performance of the cabinet thermal insulation, and improving the stability and reliability of the environmental test chamber.

[0006] To achieve this object, the present application adopts the following technical solutions:

[0007] The connecting structure of the refrigerant pipeline and the cabinet comprises:

[0008] The cabinet comprises an inner wall, a thermal insulation layer and an outer wall, and the thermal insulation layer is located between the inner wall and the outer wall;

[0009] The refrigerant pipeline comprises a refrigerant pipeline and a protection assembly, the refrigerant pipeline penetrates the cabinet and is used to connect the heat exchange assembly inside the cabinet and the refrigeration assembly outside the cabinet, the protection assembly penetrates the cabinet and covers the refrigerant pipeline, one end of the protection assembly is closed and welded and fixed with one of the inner wall and the outer wall, and the other end of the protection assembly is closed and glued and fixed with the other of the inner wall and the outer wall.

[0010] Preferably, the length of the protection assembly is greater than the sum of the thicknesses of the inner wall, the thermal insulation layer and the outer wall.

[0011] Preferably, the one end of the protection assembly is flush with the outer surface of the inner wall, and the other end of the protection assembly extends 10-20mm out of the outer surface of the outer wall.

[0012] Preferably, the refrigerant pipeline comprises a first covering section and a second covering section, the first covering section is covered with the protection assembly, and the second covering section is covered with a thermal insulation sleeve.

[0013] Preferably, the protection assembly comprises a sleeve and a filling layer, the sleeve is sleeved on the outer periphery of the refrigerant pipeline, and the gap between the sleeve and the refrigerant pipeline is filled with the filling layer, and the sleeve is closed and fixedly connected with the inner wall and the outer wall.

[0014] Preferably, the sleeve is made of the same material as the outer wall or the inner wall.

[0015] Preferably, the material of the filling layer is sealingly bonded silicone rubber.

[0016] The environmental test chamber comprises a heat exchange assembly and a refrigeration assembly, the heat exchange assembly is located inside the cabinet, the refrigeration assembly is located outside the cabinet, and the connecting structure of the refrigerant pipeline and the cabinet is further provided, and at least two groups of the refrigerant pipeline penetrate the cabinet and are connected with the heat exchange assembly and the refrigeration assembly.

[0017] The installation method of the connection structure of the refrigerant pipeline and the box body is used for installing the connection structure of the refrigerant pipeline and the box body, the protective assembly comprises a sleeve and a filling layer, the sleeve is sleeved on the refrigerant outer periphery, and the gap between the sleeve and the refrigerant is filled with the filling layer, and the installation method comprises the following steps:

[0018] S1: the inner wall and the outer wall are provided with mounting holes, one end of the sleeve is flush with the inner wall, and the sleeve is full-welded with the mounting hole of the inner wall;

[0019] S2: one end of the refrigerant pipe is connected with the heat exchange assembly, and the other end penetrates the sleeve;

[0020] S3: the heat preservation layer and the outer wall are sequentially installed outside the inner wall;

[0021] S4: the other end of the refrigerant pipe is welded with the refrigeration assembly outside the box body;

[0022] S5: the sleeve and the refrigerant pipe are sealed and fixed by the filling layer;

[0023] S6: the other end of the protective assembly is glued and fixed with the outer wall.

[0024] Preferably, S10 is further included after S1 and before S2, S10: the welding seam between the sleeve and the inner wall is coated with sealing adhesive silicone rubber.

[0025] Advantages:

[0026] The application provides a connection structure of a refrigerant pipeline and a box body, the refrigerant pipeline is covered by a protective assembly and fixedly connected with the box wall of the box body, since the protective assembly is located between the refrigerant pipe and the box wall of the box body, when transporting or running, the gap between the refrigerant pipe and the box wall can be prevented, the internal or external air entering the heat preservation layer to cause the heat preservation layer to fail is avoided, the temperature stability in the box is ensured, the accuracy and reliability of the simulated temperature of the environmental test chamber are improved, and accurate conditions are provided for product testing; meanwhile, since the protective assembly prevents the direct contact between the box body and the refrigerant pipe, the high temperature during welding is effectively prevented from being transmitted to the heat preservation layer, and the heat preservation layer is prevented from being damaged.

[0027] The application also provides an installation method of the connection structure of the refrigerant pipeline and the box body. The installation method of the refrigerant pipeline is used. One end of the protection assembly is welded with the inner wall. After the welding is completed, the thermal insulation layer and the outer wall are sequentially installed. The high temperature generated in the welding process can damage the thermal insulation layer. After the refrigerant pipe and the refrigeration assembly are welded, the protection assembly and the outer wall are glued and fixed. The adverse effects of high temperature welding on the adhesive are prevented. The installation sequence can reduce the material performance degradation caused by high temperature, prolong the service life of the thermal insulation layer and the adhesive, and reduce the cost increase and time loss caused by material damage. At the same time, the protection assembly is located between the refrigerant pipe and the box wall. When the transportation or operation vibration occurs, the gap between the refrigerant pipe and the box wall can be prevented, the external air entering the thermal insulation layer can be prevented, the temperature stability in the box can be ensured, the stable structure of the environmental test chamber can be maintained, the refrigerant pipe deviation and connection loosening can be prevented, the refrigerant circulation stability can be ensured, the temperature in the box can be accurately controlled, the long-term stable operation of the environmental test chamber can be assisted, and the accuracy of the product test result can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a schematic view of the connection structure of the refrigerant pipeline and the box body provided by the embodiment of the application;

[0029] Figure 2 is a structural schematic view of the environmental test chamber provided by the embodiment of the application;

[0030] Figure 3 is Figure 2 is an enlarged view of position A in FIG. 1;

[0031] Figure 4 is a schematic view of the connection structure of the refrigerant pipeline and the box body in the prior art.

[0032] In the drawings:

[0033] 10, environmental test chamber;

[0034] 1, refrigerant pipeline; 11, refrigerant pipe; 12, protection assembly; 111, first cladding section; 112, second cladding section; 121, sleeve; 122, filling layer;

[0035] 2, box body; 21, inner wall; 22, thermal insulation layer; 23, outer wall;

[0036] 3, heat exchange assembly;

[0037] 110, refrigerant pipe; 120, fixing adhesive; 130, thermal insulation sleeve; 210, inner wall; 220, thermal insulation layer; 230, outer wall. DETAILED DESCRIPTION

[0038] The application will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are intended to be merely illustrative of the application and not in limitation thereof. It should also be noted that, for the purpose of description, only the parts related to the application are shown in the drawings rather than all the parts.

[0039] In the description of the application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or detachably connected, or integrated; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0040] In the present application, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "above" and "on" of the first feature to the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "under" and "under" of the first feature to the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0041] In the description of the present embodiment, the terms "upper", "lower", "right", and other orientation or position relationships are based on the orientation or position relationship shown in the drawings, and are only for the purpose of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0042] The present embodiment provides a connection structure of a refrigerant pipeline and a box body, as shown in Figures 1-3As shown, the connecting structure comprises a box body 2 and a refrigerant pipeline 1, the box body 2 comprises an inner wall 21, a thermal insulation layer 22 and an outer wall 23, the thermal insulation layer 22 is located between the inner wall 21 and the outer wall 23, the refrigerant pipeline 1 comprises a refrigerant pipe 11 and a protection assembly 12, the refrigerant pipe 11 penetrates the box body 2 and is used to connect a heat exchange assembly 3 inside the box body 2 and a refrigeration assembly (not shown in the figure) outside the box body 2, the protection assembly 12 covers the refrigerant pipe 11 and penetrates the box body 2 and is fixedly connected with the inner wall 21 and the outer wall 23. The refrigerant pipeline 1 covers the refrigerant pipe 11 by the protection assembly 12 and is fixedly connected with the box wall of the box body 2, since the protection assembly 12 is located between the refrigerant pipe 11 and the box wall of the box body 2, when vibration occurs during transportation or operation, a gap can be prevented from being generated between the refrigerant pipe 11 and the box wall, the entry of internal moisture or external air into the thermal insulation layer 22 is avoided, the temperature stability inside the box is ensured; at the same time, since the protection assembly 12 separates the direct contact between the box body 2 and the refrigerant pipe 11, the high temperature during welding is effectively prevented from being transmitted to the thermal insulation layer 22, and the thermal insulation layer 22 is prevented from being damaged.

[0043] In the embodiment, as shown in Figure 1 one end of the protection assembly 12 is fixedly welded with one of the inner wall 21 and the outer wall 23, and the other end of the protection assembly 12 is fixedly glued with the other one of the inner wall 21 and the outer wall 23. The welding of one end of the protection assembly 12 can ensure that the protection assembly 12 is firmly connected with the box body 2 and can withstand various stresses during transportation and operation without loosening, thereby providing a solid foundation for the stable operation of the refrigerant pipe 11. The other end of the protection assembly 12 is fixedly glued, which is fully considered in view of the installation process requirement. After the welding of one end of the protection assembly 12 is completed, the gluing of the other end of the protection assembly 12 can avoid the damage of the thermal insulation layer 22 caused by the high temperature generated by the subsequent welding, thereby ensuring the stability of the connection and maintaining the integrity and performance of the thermal insulation layer 22. In the embodiment, one end of the protection assembly 12 is fixedly welded with the inner wall 21, and the other end of the protection assembly 12 is fixedly glued with the outer wall 23. In another alternative embodiment, one end of the protection assembly 12 is fixedly welded with the outer wall 23, and the other end of the protection assembly 12 is fixedly glued with the inner wall 21.

[0044] Further, when the protection assembly 12 is welded with the inner wall 21 or the outer wall 23, the contact surface of the two is fully welded, which enhances the strength and sealing performance of the connection part, prevents the connection from loosening or a gap from being generated due to uneven local stress during long-term use, and further prevents the internal moisture or external air, dust and other impurities from invading the thermal insulation layer 22 inside the box body 2 from the welded part, thereby ensuring the dryness and performance stability of the thermal insulation layer 22 and continuously maintaining the precise control of the temperature environment inside the box body 2.

[0045] In the embodiment, as shown in Figure 1As shown, the length of the protection assembly 12 is greater than the sum of the thicknesses of the inner wall 21, the thermal insulation layer 22 and the outer wall 23. The longer protection assembly 12 can form a more comprehensive covering and protection structure at the connecting part of the refrigerant pipe 11 and the cabinet 2. In the scene of transportation or operation vibration, it can provide sufficient buffer space and constraint force, effectively limit the swing range of the refrigerant pipe 11, further reduce the possibility of collision or gap between the refrigerant pipe 11 and the cabinet wall, so as to ensure that the thermal insulation layer 22 is always in a closed and stable environment, maintain its good thermal insulation performance, and ensure the stable temperature in the cabinet.

[0046] Specifically, in the embodiment, as shown in Figure 1 One end of the protection assembly 12 is flush with the outer surface of the inner wall 21, and the other end of the protection assembly 12 extends out of the outer surface of the outer wall 23 by 10-20mm. This extended part can expand the operation space when fixed by adhesive, which is beneficial to uniform and sufficient application and curing of the adhesive, effectively improves the quality and stability of the adhesive connection, and does not interfere with the distance layout between the refrigeration assembly and the cabinet 2, ensuring the rationality and coordination of the overall structure layout.

[0047] In the embodiment, as shown in Figure 1 The refrigerant pipe 11 includes a first covering section 111 and a second covering section 112, the first covering section 111 is covered with the protection assembly 12, and the second covering section 112 is covered with a thermal insulation sleeve (not shown). The second covering section 112 refers to the part of the refrigerant pipe 11 extending outside the cabinet 2 and not covered by the protection assembly 12. Covering the second covering section 112 with a thermal insulation sleeve avoids the part of the refrigerant pipe 11 outside the cabinet 2 being exposed in the area not protected by the protection assembly 12, reduces the heat exchange between the refrigerant and the external environment, reduces the unnecessary dissipation of heat, so that the refrigerant can maintain a relatively constant temperature level throughout the transmission process, and ensures the stable operation of the refrigerant system.

[0048] In the embodiment, as shown in Figure 1 The protection assembly 12 includes a sleeve 121 and a filling layer 122, the sleeve 121 is sleeved on the outer periphery of the refrigerant pipe 11, and the gap between them is filled with the filling layer 122, one end of the sleeve 121 is welded and fixed with the inner wall 21, and the other end of the sleeve 121 is adhesively fixed with the outer wall 23. The filling layer 122 can play a dual role of buffering and heat insulation, can absorb the impact force generated by vibration, and the heat insulation reduces the heat transfer between the refrigerant pipe 11 and the sleeve 121, improves the overall thermal insulation performance.

[0049] Specifically, as shown in Figure 1As shown, the inner diameter of the sleeve 121 is larger than the outer diameter of the refrigerant pipe 11, the refrigerant pipe 11 passes through the sleeve 121 and has no direct contact with the sleeve 121, the filling layer 122 fills the gap between the sleeve 121 and the refrigerant pipe 11, can be closely attached to the surface of the refrigerant pipe 11 and the sleeve 121, thereby effectively filling the gap between them and ensuring that there is no loosening or falling off under various working conditions.

[0050] In the present embodiment, the sleeve 121 is made of the same material as the outer wall 23 or the inner wall 21, and welding of the same material can ensure the firmness and stability of the welding. In the present embodiment, the inner wall 21 is made of stainless steel and the outer wall 23 is made of carbon steel, and when the sleeve 121 is welded to the inner wall 21, the sleeve 121 is made of stainless steel. In other embodiments, when the sleeve 121 is welded to the outer wall 23, the sleeve 121 is made of carbon steel.

[0051] In the present embodiment, the material of the filling layer 122 is sealing adhesive silicone rubber. It can tightly fill the gap between the sleeve 121 and the refrigerant pipe 11, effectively prevent the intrusion of external air, moisture and other impurities, prevent the failure of the heat preservation layer 22, corrosion of the refrigerant pipe 11 and other problems caused by these factors, and ensure the cleanliness and stable operation of the refrigerant pipe 1 system. Specifically, the sealing adhesive silicone rubber used in the present embodiment is selected from Shin-Etsu KE-45, which has wide temperature range elasticity, strong adhesion to metal and plastic, good weather resistance and corrosion resistance, so it can adapt to temperature changes and chemical corrosion, maintain close combination with the sleeve 121 and the refrigerant pipe 11, and keep the integrity of the protection assembly 12. In other embodiments, glass glue or other types of sealing adhesive silicone rubber can also be used as long as the above effects can be achieved, which are not limited here.

[0052] The present embodiment provides an environmental test chamber, as shown in Figure 2 and Figure 3 The environmental test chamber 10 includes a heat exchange assembly 3, a refrigeration assembly, and the above-mentioned connection structure of the refrigerant pipe and the chamber body, and at least two groups of refrigerant pipes 1 are connected with the heat exchange assembly 3 and the refrigeration assembly through the chamber body 2. The specific structure and working principle of the environmental test chamber 10 are both prior art, which will not be described here. By providing the above-mentioned refrigerant pipe 1, when the environmental test chamber 10 is transported or vibrates during operation, the gap between the refrigerant pipe 11 and the chamber wall can be prevented, the internal moisture or external air entering the heat preservation layer 22 to cause its failure can be avoided, the temperature stability in the chamber can be ensured, the accuracy and reliability of the simulated temperature of the environmental test chamber 10 can be improved, and accurate conditions for product testing can be provided; at the same time, direct contact between the chamber body 2 and the refrigerant pipe 11 is avoided, high temperature during welding is effectively prevented from being transmitted to the heat preservation layer 22, and the heat preservation layer 22 is prevented from being damaged.

[0053] Specifically, as shown in Figure 2 and Figure 3As shown, the refrigerant pipeline 1 is provided with two groups, one group is used for the input of refrigerant, and the other group is used for the output of refrigerant. In other embodiments, the refrigerant pipeline 1 can be provided with three groups, four groups, etc., as long as there is a pipeline that can realize the functions of refrigerant input and output, and the number of refrigerant pipelines 1 is not limited.

[0054] The embodiment also provides a mounting method of the connection structure of the refrigerant pipeline and the box, for mounting the above-mentioned connection structure of the refrigerant pipeline and the box, and the mounting method comprises the following steps:

[0055] S1: The inner wall 21 and the outer wall 23 are provided with mounting holes, one end of the sleeve 121 is flush with the inner wall 21, and the sleeve 121 is fully welded with the mounting hole of the inner wall 21;

[0056] S2: One end of the refrigerant pipe 11 is connected with the heat exchange assembly 3, and the other end is provided with the sleeve 121;

[0057] S3: The thermal insulation layer and the outer wall are sequentially mounted outside the inner wall;

[0058] S4: The other end of the refrigerant pipe is welded with the refrigeration assembly outside the box;

[0059] S5: The sleeve 121 and the refrigerant pipe 11 are sealed and fixed by the filling layer 122;

[0060] S6: The other end of the protective assembly is adhesively fixed with the outer wall.

[0061] The mounting method of the connection structure of the refrigerant pipeline and the box is used to weld one end of the protective assembly 12 with the inner wall 21, sequentially mount the thermal insulation layer 22 and the outer wall 23 after the welding is completed, avoid the damage of high temperature in the welding process to the thermal insulation layer 22, and adhesively fix the protective assembly 12 with the outer wall 23 after the welding of the refrigerant pipe 11 and the refrigeration assembly is completed, to prevent the adverse effects of high temperature welding on the adhesive. When the refrigerant pipe 11 and the refrigeration assembly are welded, the sleeve 121 also avoids the high temperature effect on the thermal insulation layer 22 during welding. The mounting sequence can reduce the performance degradation of materials caused by high temperature, prolong the service life of the thermal insulation layer 22 and the adhesive, and reduce the cost increase and time loss caused by material damage. At the same time, the protective assembly 12 is located between the refrigerant pipe 11 and the box wall of the box 2, which can prevent the two from generating gaps during transportation or running vibration, prevent the internal moisture or external air from entering the thermal insulation layer 22 to cause the failure of the thermal insulation layer 22 to ensure the stability of the temperature in the box, and the close connection structure of the protective assembly 12, the refrigerant pipe 11 and the box 2 can maintain the stability of the structure of the environmental test chamber 10, prevent the refrigerant pipe 11 from deviating and the connection from loosening, ensure the stability of the refrigerant circulation, accurately control the temperature in the box, help the long-term stable operation of the environmental test chamber 10, and improve the accuracy of the test results of the product.

[0062] In the embodiment, after step S6, step S7 is further included, S7: wrapping the second wrapping section 112 of the refrigerant pipe 11 with a thermal insulation sleeve. Wrapping the second wrapping section 112 with the thermal insulation sleeve avoids exposing the refrigerant pipe 11 in the area not protected by the protection assembly 12, reduces heat exchange between the refrigerant and the external environment, reduces unnecessary heat dissipation, and keeps the refrigerant at a relatively constant temperature level during the entire transmission process, thereby ensuring stable operation of the refrigerant system.

[0063] In the embodiment, after step S1 and before step S2, step S10 is further included, S10: applying sealing and bonding silicone rubber to the weld between the protection assembly 12 and the inner wall 21. In this way, the presence of pores or cracks in the weld due to poor welding is prevented, thereby preventing moisture in the box 2 from entering the thermal insulation layer 22 and causing the thermal insulation layer 22 to lose its thermal insulation effectiveness due to water accumulation.

[0064] In another alternative embodiment, the installation method of the connection structure of the refrigerant pipe and the box can also include:

[0065] S1: providing a mounting hole in the outer wall 23, and welding one end of the sleeve 121 to the side wall of the mounting hole;

[0066] S2: threading the other end of the refrigerant pipe 11 through the sleeve 121 and welding it to the refrigeration assembly outside the box 2;

[0067] S3: sequentially installing the thermal insulation layer 22 and the inner wall 21 on the outer wall 23;

[0068] S4: fixedly connecting the other end of the refrigerant pipe 11 to the heat exchange assembly 3 inside the box 2;

[0069] S5: sealing and fixing the sleeve 121 and the refrigerant pipe 11 with the filler layer 122;

[0070] S6: adhesively fixing the other end of the protection assembly 12 to the inner wall 21.

[0071] The beneficial effects achieved by the installation method are exactly the same as those achieved by the above-mentioned installation method, and will not be described here again.

[0072] Obviously, the above-mentioned embodiments of the present application are only examples for the sake of clear illustration of the present application, and are not a limitation on the embodiments of the present application. Those skilled in the art can make various obvious changes, readjustments and substitutions without departing from the scope of the present application. It is unnecessary and impossible to exhaust all the embodiments here. Any modification, equivalent substitution and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. An installation method for a refrigerant pipeline and enclosure connection structure, used to install a refrigerant pipeline and enclosure connection structure, the refrigerant pipeline and enclosure connection structure including enclosure (2) and refrigerant pipeline (1), the enclosure (2) including inner wall (21), insulation layer (22) and outer wall (23), the insulation layer (22) being located between the inner wall (21) and the outer wall (23), the refrigerant pipeline (1) including refrigerant pipe (11) and protective component (12), the refrigerant pipe (11) passing through the enclosure (2) and used to connect the heat exchange component (3) inside the enclosure (2) and the enclosure (2). An external refrigeration assembly, wherein the protective assembly (12) passes through the housing (2) and covers the refrigerant pipe (11), one end of the protective assembly (12) is welded and fixed to one of the inner wall (21) and the outer wall (23), and the other end of the protective assembly (12) is glued and fixed to the other of the inner wall (21) and the outer wall (23). The protective assembly (12) includes a sleeve (121) and a filling layer (122), wherein the sleeve (121) is fitted around the outer periphery of the refrigerant pipe (11) and the gap between the two is filled with the filling layer (122). The protective assembly (12) is characterized in that... Installation methods include: S1: The inner wall (21) and the outer wall (23) are provided with mounting holes, one end of the sleeve (121) is flush with the inner wall (21) and fully welded to the mounting hole of the inner wall (21); S2: Connect one end of the refrigerant pipe (11) to the heat exchange assembly (3), and pass the other end through the sleeve (121). S3: Install the insulation layer (22) and the outer wall (23) on the outer side of the inner wall (21) in sequence; S4: Weld the other end of the refrigerant pipe (11) to the refrigeration components outside the housing (2); S5: Seal and fix the sleeve (121) and the refrigerant pipe (11) with the filler layer (122); S6: Glue the other end of the protective component (12) to the outer wall (23).

2. The installation method of the refrigerant pipeline and housing connection structure according to claim 1, characterized in that, S10 is included after S1 and before S2, whereby sealing adhesive silicone rubber is applied to the weld between the protective component (12) and the inner wall (21).

3. The installation method of the refrigerant pipeline and housing connection structure according to claim 1, characterized in that, The length of the protective component (12) is greater than the sum of the thicknesses of the inner wall (21), the insulation layer (22), and the outer wall (23).

4. The installation method of the refrigerant pipeline and housing connection structure according to claim 3, characterized in that, One end of the protective component (12) is flush with the outer surface of the inner wall (21), and the other end of the protective component (12) extends 10-20mm beyond the outer surface of the outer wall (23).

5. The installation method of the refrigerant pipeline and housing connection structure according to claim 1, characterized in that, The refrigerant pipe (11) includes a first covering section (111) and a second covering section (112). The first covering section (111) is covered with the protective component (12), and the second covering section (112) is covered with an insulation sleeve.

6. The installation method of the refrigerant pipeline and housing connection structure according to claim 1, characterized in that, The sleeve (121) is closed and fixedly connected to the inner wall (21) and the outer wall (23).

7. The installation method of the refrigerant pipeline and housing connection structure according to claim 1, characterized in that, The sleeve (121) is made of the same material as the outer wall (23) or the inner wall (21).

8. The installation method of the refrigerant pipeline and housing connection structure according to claim 1, characterized in that, The material of the filler layer (122) is sealing adhesive silicone rubber.

9. An environmental test chamber, comprising a heat exchange component (3) and a refrigeration component, wherein the heat exchange component (3) is located inside the chamber body (2) and the refrigeration component is located outside the chamber body (2), characterized in that, The refrigerant piping and housing connection structure is installed by the installation method of the refrigerant piping and housing connection structure according to any one of claims 1-8, wherein at least two sets of the refrigerant piping (1) pass through the housing (2) and are connected to the heat exchange component (3) and the refrigeration component.

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