An electric auxiliary heating device and an air-cooled cabinet air conditioner

Abstract

This utility model discloses an electric auxiliary heating device and an air-cooled air conditioner. The electric auxiliary heating device includes an electric heating tube and a support assembly. The support assembly includes a left support and a right support arranged opposite each other. Both the left and right supports are provided with hole structures for adjusting the installation position of the electric heating tube. The two ends of the electric heating tube are respectively installed on the hole structures of the left and right supports. Through the hole structures, electric heating tubes of different power can be freely combined according to the usage environment and temperature control requirements of the air-cooled air conditioner, and the installation position of electric heating tubes of different power can be flexibly adjusted. This effectively avoids adverse effects on the airflow of the unit due to different power of the electric heating tubes or improper installation positions, ensuring the rationality of the airflow of the unit and thus ensuring the heat exchange effect of the unit.

Description

Technical Field

[0001] This utility model relates to the field of air conditioner technology, and in particular to an electric auxiliary heating device and an air-cooled cabinet air conditioner. Background Technology

[0002] Large-capacity air-cooled air conditioners are widely used in large-scale industrial and agricultural production sites. These air conditioners are easy to install, requiring no ceiling work and can be installed directly on a floor. In certain locations, it is necessary to maintain the indoor temperature within a specific range. Especially in cold winters, air-cooled air conditioners need to be equipped with auxiliary electric heating devices to meet indoor temperature requirements.

[0003] Currently, the power of the electric heating elements inside electric auxiliary heating devices is usually fixed, such as 5kW, 10kW, or 20kW. However, in actual use, the electric heating elements need to be freely combined and installed according to the application environment and temperature control requirements of the air-cooled air conditioner. But in practical applications, it has been found that the installation location of the selected electric heating elements, depending on their power, can affect the airflow of the unit, thus impacting the heat exchange efficiency. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide an electric auxiliary heating device and an air-cooled cabinet air conditioner, which aims to solve the problem of not being able to adaptably select the number and location of electric heating tubes according to the usage location and actual temperature control requirements.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] On the one hand, this utility model provides an electric auxiliary heating device, comprising:

[0007] Electric heating element;

[0008] The bracket assembly includes a left bracket and a right bracket arranged at intervals from each other on the left and right sides;

[0009] Both the left and right brackets are provided with holes for adjusting the installation position of the electric heating tube, and the two ends of the electric heating tube are respectively installed on the holes of the left and right brackets.

[0010] Furthermore, the hole structure includes a plurality of mounting holes spaced apart along the length direction perpendicular to the electric heating tube, and both the left bracket and the right bracket are provided with the mounting holes.

[0011] Furthermore, the hole structure includes an elongated hole, the length direction of which is perpendicular to the length direction of the electric heating tube, and both the left bracket and the right bracket are provided with the elongated hole.

[0012] Furthermore, multiple electric heating tubes are arranged side by side at intervals on the hole structure, with the same interval between two adjacent electric heating tubes.

[0013] Furthermore, the bracket assembly also includes an upper bracket and a lower bracket arranged at intervals between each other, and the left bracket and the right bracket are both connected to the upper bracket and the lower bracket.

[0014] Furthermore, the upper support and the lower support are provided with connection holes at different height positions for connecting the left support and the right support.

[0015] Furthermore, it also includes a support plate, which is disposed at the bottom of the electric heating tube to support the electric heating tube, and the support plate is connected to the upper bracket and the lower bracket.

[0016] Furthermore, it also includes a left side plate and a right side plate, the left side plate being disposed on the outside of the left support and the right side plate being disposed on the outside of the right support, both the left side plate and the right side plate being connected to the upper support and the lower support.

[0017] Furthermore, both the upper support and the lower support are provided with guide rails, the length direction of which extends along the length direction of the electric heating tube, and the left side plate and the right side plate are adjustablely connected to the guide rails.

[0018] On the other hand, this utility model also provides an air-cooled cabinet air conditioner, including an evaporator and the above-mentioned electric auxiliary heating device, wherein the electric auxiliary heating device is installed on the surface of the evaporator.

[0019] The advantages of this utility model compared to the prior art are as follows: An electric auxiliary heating device includes an electric heating tube and a support assembly. The support assembly includes a left support and a right support arranged opposite each other. Both the left and right supports are provided with hole structures for adjusting the installation position of the electric heating tube. The two ends of the electric heating tube are respectively installed on the hole structures of the left and right supports. Through the hole structures, electric heating tubes of different power can be freely combined and their installation positions can be flexibly adjusted according to the usage environment and temperature control requirements of the air-cooled air conditioner. This effectively avoids adverse effects on the unit's airflow caused by different electric heating tube power or improper installation position, ensuring the rationality of the unit's airflow and thus ensuring the heat exchange effect of the unit.

[0020] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model, it can be implemented according to the contents of the specification. In order to make the above and other objectives, features and advantages of this utility model more obvious and easy to understand, the following are preferred embodiments, which are described in detail below. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 A schematic diagram of the external shape of an air-cooled cabinet air conditioner provided for a specific embodiment of this utility model;

[0023] Figure 2 A schematic diagram of the internal structure of an air-cooled cabinet air conditioner provided for a specific embodiment of this utility model;

[0024] Figure 3 A schematic diagram of the internal structure of a wind-cooled air conditioner from another perspective, provided for a specific embodiment of this utility model;

[0025] Figure 4 A schematic diagram of the structure of an electric auxiliary heating device provided for a specific embodiment of this utility model;

[0026] Figure 5 A schematic diagram of the structure of the left support in an electric auxiliary heating device provided for a specific embodiment of this utility model;

[0027] Figure 6 A schematic diagram of the structure of the upper support in an electric auxiliary heating device provided for a specific embodiment of this utility model;

[0028] Figure 7 This is a schematic diagram of the structure of the left side plate in an electric auxiliary heating device provided for a specific embodiment of the present utility model.

[0029] Figure Labels

[0030] 1. Housing; 11. Air outlet; 2. Electric auxiliary heating device; 21. Electric heating element; 22. Left bracket; 221. Mounting hole; 222. Bracket folded edge; 23. Right bracket; 24. Upper bracket; 241. Connection hole; 242. Guide rail; 25. Lower bracket; 26. Support plate; 27. Pipe clamp; 28. Left side plate; 281. Side plate folded edge; 29. ​​Right side plate; 3. Evaporator; 4. Fan; 5. Motor; 6. Water tray. Detailed Implementation

[0031] The technical solution of this utility model will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0032] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0033] Furthermore, 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0034] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0036] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0037] like Figures 1 to 7 As shown, this utility model embodiment provides an air-cooled air conditioner, including a casing 1 and an evaporator 3, an electric auxiliary heating device 2, a fan 4, a motor 5, and a drip tray 6 disposed within the casing 1. The evaporator 3 is arranged at an angle, the angle of which can be set according to heat exchange requirements and installation space. The upper and lower ends of the evaporator 3 are fixed to the inner wall of the casing 1 by a bracket structure, and the bracket structure can be connected to the inner wall of the casing 1 by screws or snap-fits. The electric auxiliary heating device 2 is installed on the surface of the evaporator 3, specifically and effectively fixed by the side plate of the evaporator 3. The fan 4 and the motor 5 are installed on top of the evaporator 3 and the electric auxiliary heating device 2, and the fan 4 and the motor 5 are connected by a transmission component. The motor 5 drives the fan 4 to achieve air circulation. The fan 4 and the motor 5 are installed inside the casing 1 by a fixing structure that ensures the stability of the equipment during operation. An air inlet grille is provided on the back of the casing 1 for air intake. An air outlet 11 is provided on the top of the casing 1 and is located near the fan 4 so that the fan 4 can smoothly deliver the processed air. A water collection tray 6 is provided at the bottom of the electric auxiliary heating device 2 and the evaporator 3 to collect the condensate generated during the operation of the air-cooled air conditioner.

[0038] like Figure 4 As shown, the electric auxiliary heating device 2 includes an electric heating tube 21 and a bracket assembly. The bracket assembly includes a left bracket 22 and a right bracket 23 arranged at intervals. Both the left bracket 22 and the right bracket 23 are provided with hole structures for adjusting the installation position of the electric heating tube 21. The two ends of the electric heating tube 21 are respectively installed on the hole structures of the left bracket 22 and the right bracket 23.

[0039] The structure of the electric heating element 21 is existing technology and will not be described in detail. Both the left bracket 22 and the right bracket 23 adopt a strip-shaped plate structure, and their material is a metal plate with a certain load-bearing capacity and heat resistance. Both the left bracket 22 and the right bracket 23 are provided with hole structures for adjusting the installation position of the electric heating element 21. The two ends of the electric heating element 21 are respectively installed on the hole structures of the left bracket 22 and the right bracket 23 through connecting terminals, so that multiple electric heating elements 21 are arranged between the left bracket 22 and the right bracket 23.

[0040] With the set hole structure, electric heating tubes 21 of different power can be freely combined according to the usage location and temperature control requirements of the air-cooled air conditioner, and the installation position of electric heating tubes 21 of different power can be flexibly adjusted. This effectively avoids adverse effects on the unit's air field due to different power of electric heating tubes 21 or improper installation position, ensuring the rationality of the unit's air field and thus ensuring the heat exchange effect of the unit.

[0041] In one embodiment, the hole structure adopts a plurality of mounting holes 221 arranged at intervals along the length direction perpendicular to the electric heating tube 21. The mounting holes 221 on the left bracket 22 and the right bracket 23 are set one-to-one. The connecting terminals at both ends of each electric heating tube 21 can be fixed in the corresponding mounting hole 221 by bolts or buckles or other connecting parts.

[0042] In practical applications, the number and power of the electric heating tubes 21 can be reasonably selected according to the characteristics of the place where the air-cooled air conditioner is used (such as space size, insulation performance, etc.) and the specific temperature control requirements. Specifically, for scenarios with high temperature requirements or poor insulation, more electric heating tubes 21 can be installed in more mounting holes 221, and electric heating tubes 21 with higher power can be selected; while for scenarios with low temperature requirements or good insulation, the number of electric heating tubes 21 can be reduced, electric heating tubes 21 with lower power can be selected, or even no electric heating tubes 21 can be installed in some mounting holes 221.

[0043] like Figure 4 As shown, the left bracket 22 and the right bracket 23 are each provided with 13 mounting holes 221, which means that 13 electric heating tubes 21 can be installed. If the required electric heating capacity is 12kW, then 6 2kW electric heating tubes 21 can be assembled. Since there are 13 mounting holes 221, one electric heating tube 21 can be installed every other mounting hole 221.

[0044] In one embodiment, in addition to the above-mentioned design of multiple mounting holes 221, the hole structure can be designed as an elongated hole, with the length direction of the elongated hole perpendicular to the length direction of the electric heating tube 21. The elongated holes on the left bracket 22 and the right bracket 23 are positioned correspondingly, and the connecting terminals at both ends of the electric heating tube 21 are fixed by connectors that can slide within the elongated hole.

[0045] The connectors specifically include bolts, washers, and nuts. The diameter of the bolt shank matches the width of the elongated hole, while the bolt head diameter is larger than the width of the elongated hole to prevent the bolt from falling out from the inside of the hole. The washers are flat metal washers with a diameter larger than the bolt head diameter to increase the bearing area and prevent damage to the surface of the left bracket 22 or right bracket 23 during fixing. Through holes are provided on the connecting terminals at both ends of the electric heating tube 21, with the diameter of the through holes matching the diameter of the bolt shank. During fixing, the bolt shank is first passed through the elongated hole from the inside of the left bracket 22 or right bracket 23, then through the through hole on the connecting terminal. Next, the washer and nut are sequentially placed on the outside of the bolt shank. Finally, the nut is tightened to ensure a tight fit between the nut, washer, connecting terminal, and left bracket 22 or right bracket 23, thereby fixing the connecting terminal in the designated position of the elongated hole.

[0046] When it is necessary to adjust the installation position of the electric heating element 21, simply loosen the nut so that the shank of the bolt can slide along its length in the elongated hole. After sliding to the target position, tighten the nut again to complete the fixation.

[0047] Compared to the design with multiple mounting holes 221, the elongated hole design offers greater flexibility and convenience in adjustment.

[0048] Furthermore, multiple electric heating tubes 21 are arranged side-by-side at intervals on the hole structure, with the same distance between adjacent electric heating tubes 21. This design ensures that the heat generated by the electric auxiliary heating device 2 is evenly distributed in the space, avoiding situations where the heat is too concentrated or insufficient in certain areas, thereby ensuring the uniformity of heating the evaporator 3 and improving the heat exchange efficiency of the evaporator 3. At the same time, the uniform spacing allows the airflow to maintain a stable flow velocity and direction when passing through the gaps between the electric heating tubes 21, reducing the problem of increased wind resistance caused by airflow turbulence, reducing the energy consumption of the fan 4 system, and thus improving the overall operating efficiency of the unit.

[0049] It should be noted that, while ensuring that the spacing between two adjacent electric heating tubes 21 is the same, the minimum spacing must be greater than or equal to a preset value. The preset value must take into account the diameter of the electric heating tube 21 and the electric heating power. The larger the diameter of the electric heating tube 21 and the greater the power, the larger the preset value will be.

[0050] In one embodiment, such as Figure 4 As shown, the bracket assembly also includes an upper bracket 24 and a lower bracket 25 arranged at intervals between each other, and the left bracket 22 and the right bracket 23 are both connected to the upper bracket 24 and the lower bracket 25.

[0051] Specifically, the extension directions of the upper support 24 and the lower support 25 are perpendicular to the extension directions of the left support 22 and the right support 23, forming a frame structure together. The upper support 24 and the lower support 25 are both made of long strip plates or profiles with a certain degree of rigidity, and their length is not less than the distance between the left support 22 and the right support 23 to ensure that the left support 22 and the right support 23 can be stably connected.

[0052] like Figure 4 and Figure 5 As shown, the top ends of both the left bracket 22 and the right bracket 23 are connected to the upper bracket 24, and the bottom ends are connected to the lower bracket 25. The connection method can be bolt connection or snap-fit ​​connection. Taking bolt connection as an example, both the upper and lower ends of the left bracket 22 and the right bracket 23 are provided with bracket flanges 222, and the bracket flanges 222 are provided with threaded holes. The upper bracket 24 and the lower bracket 25 are also provided with matching connection holes 241. By passing the bolts through the threaded holes and connection holes 241 and tightening them with nuts, the left bracket 22, the right bracket 23 can be fixed to the upper bracket 24 and the lower bracket 25.

[0053] In one embodiment, such as Figure 6 As shown, the upper bracket 24 and the lower bracket 25 are provided with connection holes 241 for connecting the left bracket 22 and the right bracket 23 at different height positions. That is, multiple connection holes 241 are spaced apart along the height direction of the upper bracket 24 and the lower bracket 25, so that the left bracket 22, the right bracket 23 can be fixedly connected to the upper bracket 24 and the lower bracket 25 at different height positions.

[0054] In actual installation, if it is necessary to shorten the distance between the electric heating tube 21 and the evaporator 3, the upper and lower ends of the left bracket 22 and the right bracket 23 can be connected to the lower set of connection holes 241 in the upper bracket 24 and the lower bracket 25; if it is necessary to increase the distance between the electric heating tube 21 and the evaporator 3, the higher set of connection holes 241 can be selected.

[0055] The different height connection holes 241 allow the connection positions of the left bracket 22 and right bracket 23 with the upper bracket 24 and lower bracket 25 to be flexibly adjusted in the vertical direction, thereby changing the installation height of the electric heating tube 21, meeting the requirements of the optimal distance between the electric heating tube 21 with different power and the evaporator 3, ensuring that the heat exchange of the evaporator 3 is not affected too much, and improving the operating efficiency of the unit.

[0056] In one embodiment, such as Figure 4 As shown, the electric auxiliary heating device 2 also includes a support plate 26, which is located at the bottom of the electric heating tube 21 to support the electric heating tube 21. The support plate 26 is connected to the upper bracket 24 and the lower bracket 25.

[0057] Specifically, a support plate 26 is horizontally positioned at the bottom of multiple electric heating tubes 21, with its length perpendicular to the length of the electric heating tubes 21. The length of the support plate 26 is not less than the overall width formed by all the parallel electric heating tubes 21, ensuring effective support for all the parallel-arranged electric heating tubes 21. The support plate 26 is made of metal sheet with a certain load-bearing capacity and heat resistance, and its surface can be rust-proofed to adapt to the working environment of the electric auxiliary heating device 2.

[0058] The two ends of the support plate 26 are connected to the upper bracket 24 and the lower bracket 25 by bolts, respectively. The electric heating tube 21 is connected to the support plate 26 by a pipe clamp 27. The number of support plates 26 can be set according to the length of the electric heating tube 21. When the length of the electric heating tube 21 is long, multiple support plates 26 can be set at intervals along the length direction perpendicular to the electric heating tube 21.

[0059] The support plate 26 can provide effective support for the electric heating tube 21, especially when the electric heating tube 21 is long, the support effect is more obvious, and it can effectively prevent the electric heating tube 21 from deforming.

[0060] In one embodiment, such as Figure 4 As shown, the electric auxiliary heating device 2 also includes a left side plate 28 and a right side plate 29. The left side plate 28 is located outside the left support 22, and the right side plate 29 is located outside the right support 23. Both the left side plate 28 and the right side plate 29 are connected to the upper support 24 and the lower support 25. The left side plate 28 and the right side plate 29 are connected to the side plate of the evaporator 3 to fix the electric auxiliary heating device 2 as a whole on the surface of the evaporator 3.

[0061] like Figure 4 and Figure 7 As shown, both the left side plate 28 and the right side plate 29 adopt a plate-like structure with a certain rigidity. Their material can be the same metal material as the bracket assembly to ensure structural consistency and temperature resistance. The left side plate 28 is spaced out on the outside of the left bracket 22, that is, at one end of the left bracket 22 away from the electric heating tube 21. The right side plate 29 is spaced out on the outside of the right bracket 23, that is, at the other end of the right bracket 23 away from the electric heating tube 21. The height of the left side plate 28 and the right side plate 29 is adapted to the height of the left bracket 22 and the right bracket 23, and the length is not less than the distance between the upper bracket 24 and the lower bracket 25 to ensure a stable connection between the upper bracket 24 and the lower bracket 25.

[0062] Both the left side plate 28 and the right side plate 29 are connected to the upper bracket 24 and the lower bracket 25, respectively, by means of bolts. Both the upper and lower ends of the left side plate 28 and the right side plate 29 are provided with side plate flanges 281, each with threaded holes. Corresponding holes are also provided at the ends of the upper bracket 24 and the lower bracket 25. Bolts are passed through the threaded holes and the corresponding holes, and then tightened with nuts, ensuring a stable connection between the left side plate 28 and the right side plate 29 and the upper bracket 24 and the lower bracket 25, respectively.

[0063] Furthermore, both the upper support 24 and the lower support 25 are equipped with guide rails 242, which extend along the length of the electric heating tube 21. The left side plate 28 and the right side plate 29 are adjustablely connected to the guide rails 242. This design allows the left side plate 28 and the right side plate 29 to be adjusted left and right according to the length of the evaporator 3 to meet the needs of evaporators 3 of different lengths.

[0064] like Figure 7 As shown, the guide rail 242 consists of the holes at both ends of the upper bracket 24 and the lower bracket 25. The side plate folds 281 of the left side plate 28 and the right side plate 29 are locked and fixed at different positions on the guide rail 242 by bolts, so as to realize the position adjustment of the left side plate 28 and the right side plate 29 relative to the upper bracket 24 and the lower bracket 25, thereby meeting the length requirements of the evaporator 3.

[0065] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. An electrically assisted heating device, characterized in that, include: Electric heating element; The bracket assembly includes a left bracket and a right bracket arranged at intervals from each other on the left and right sides; Both the left and right brackets are provided with holes for adjusting the installation position of the electric heating tube, and the two ends of the electric heating tube are respectively installed on the holes of the left and right brackets.

2. An electrically assisted heating device according to claim 1, wherein The hole structure includes a plurality of mounting holes spaced apart along the length direction perpendicular to the electric heating tube, and both the left bracket and the right bracket are provided with the mounting holes.

3. An electrically assisted heating device according to claim 1, wherein The hole structure includes an elongated hole, the length direction of which is perpendicular to the length direction of the electric heating tube, and both the left bracket and the right bracket are provided with the elongated hole.

4. An electrically assisted heating device according to claim 2 or 3, characterised in that, Multiple electric heating tubes are arranged side by side at intervals on the hole structure, with the same distance between adjacent electric heating tubes.

5. An electrically assisted heating device according to claim 1, wherein, The bracket assembly also includes an upper bracket and a lower bracket arranged at intervals between each other, and the left bracket and the right bracket are both connected to the upper bracket and the lower bracket.

6. An electrically assisted heating device according to claim 5, wherein Both the upper support and the lower support are provided with connection holes at different height positions for connecting the left support and the right support.

7. An electrically assisted heating device according to claim 5, wherein It also includes a support plate, which is disposed at the bottom of the electric heating tube to support the electric heating tube, and the support plate is connected to the upper bracket and the lower bracket.

8. An electrically assisted heating device according to claim 5, wherein, It also includes a left side plate and a right side plate. The left side plate is located outside the left support, and the right side plate is located outside the right support. Both the left side plate and the right side plate are connected to the upper support and the lower support.

9. An electrically assisted heating device according to claim 8, wherein, Both the upper support and the lower support are provided with guide rails, the length of which extends along the length of the electric heating tube, and the left side plate and the right side plate are adjustablely connected to the guide rails.

10. A self-contained air conditioner for a refrigerator, characterized by It includes an evaporator and an electric auxiliary heating device as described in any one of claims 1-9, wherein the electric auxiliary heating device is mounted on the surface of the evaporator.

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