Horizontal air-cooled refrigerator and temperature control method thereof

Abstract

The present application belongs to the technical field of refrigeration equipment, and particularly relates to a horizontal air-cooled refrigerator and a temperature control method thereof. The refrigerator comprises a control system, a cabinet body and a flow guide device. The cabinet body comprises a cabinet shell and a cabinet liner arranged in the cabinet shell. An air supply channel is formed between the front wall of the cabinet liner and the inner wall of the cabinet shell. A plurality of air supply openings are formed in the front wall of the cabinet liner. An evaporation chamber is arranged at the lower right of the cabinet shell and is in communication with the air supply channel. The flow guide device comprises a fixed flow guide plate and a movable flow guide plate arranged between the front wall of the cabinet liner and the inner wall of the cabinet shell, so as to guide the flow of cold energy in the air supply channel. The fixed flow guide plate is arranged at the corner of the air supply channel away from the evaporation chamber. The movable flow guide plate is arranged in the middle of the air supply channel and can reciprocate along the length direction of the cabinet body under the control of the control system. The present application optimizes the flow of cold energy in the air supply channel, solves the uneven temperature distribution in the cabinet of the existing horizontal air-cooled refrigerator, and enables the refrigerator to operate efficiently and energy-savingly.

Description

Technical Field

[0001] This invention belongs to the field of refrigeration equipment technology, specifically relating to a horizontal air-cooled freezer and its temperature control method. Background Technology

[0002] Freezers are refrigeration equipment widely used in supermarkets, retail, cold chain logistics and other industries. Air-cooled freezers are gradually being promoted because of their frost-free interior. Among them, horizontal air-cooled freezers are very popular in the market because of their large storage capacity.

[0003] Currently, horizontal air-cooled freezers using a sandwich-type air duct are a mainstream product in the market, such as... Figure 1 , Figure 2 As shown, the air supply duct 4 and return air duct 6 of this type of refrigerator are both sandwiched air duct structures. That is, the air supply duct 4 is surrounded by the inner wall of the shell 1 and the front wall 8 of the cabinet liner, and the return air duct 6 is surrounded by the inner wall of the shell 1 and the rear wall 9 of the cabinet liner. Usually, an evaporation chamber 10 is set in the lower right of the shell 1. The evaporation chamber 10 is connected to both the air supply duct 4 and the return air duct 6. The evaporator 2 and the evaporation fan 3 are both set in the evaporation chamber 10. The air outlet method of this type of refrigerator is single-sided air supply and opposite-sided air return. Under the guiding action of the evaporation fan 3, the cold air enters the air supply duct 4 from the evaporation chamber 10 and flows from bottom to top in the air supply duct 4. It enters the refrigerator through the air outlet 5 on the front wall 8 of the cabinet liner to cool the goods in the refrigerator. Finally, the airflow after heat exchange is drawn into the return air duct 6 through the return air outlet 7 on the rear wall 9 of the cabinet liner, and then flows into the evaporation chamber 10 from top to bottom, thus forming a wind-cooling cycle.

[0004] However, the position of the evaporation chamber 10 of the aforementioned horizontal air-cooled freezer has a significant impact on the airflow organization within the air duct 4. This results in very low airflow from the air outlets 5 near the right side of the freezer, causing significant temperature differences within the freezer along its length. Consequently, uneven temperature distribution occurs within the freezer, affecting the quality of the goods stored inside. Summary of the Invention

[0005] In view of the shortcomings of related technologies, the present invention provides a horizontal air-cooled freezer and its temperature control method, which aims to solve the problem of uneven temperature distribution inside the existing horizontal air-cooled freezer, so as to make the freezer more efficient and energy-saving.

[0006] This invention provides a horizontal air-cooled freezer, comprising:

[0007] Control system;

[0008] The cabinet includes a shell and a cabinet liner inside the shell. The cabinet liner has a front wall and a rear wall that are arranged opposite to each other. An air supply duct is formed between the front wall of the cabinet liner and the inner wall of the shell, and multiple air supply ports are provided on the front wall of the cabinet liner. The cabinet also has an evaporation chamber located at the lower right of the shell, and the evaporation chamber is connected to the air supply duct.

[0009] The flow guide device comprises a fixed flow guide plate and a movable flow guide plate arranged between the front wall of the cabinet and the inner wall of the box shell to guide the flow of cold energy from the evaporation chamber into the air supply channel; wherein the fixed flow guide plate is located at the corner of the air supply channel away from the evaporation chamber; the movable flow guide plate is located in the middle of the air supply channel and can reciprocate along the length direction of the cabinet under the control of the control system.

[0010] The above technical scheme optimizes the flow of cold energy in the air supply channel, realizes balanced distribution of cold energy, improves the uniformity of temperature distribution in the cabinet, and enables the refrigerator to operate efficiently and energy-savingly.

[0011] In some embodiments, the movable flow guide plate specifically comprises:

[0012] The first mounting portion and the second mounting portion are arranged in an up-down opposite parallel manner, and are both in sliding connection with the box shell, so that the movable flow guide plate can reciprocate along the length direction of the cabinet; the distance from the first mounting portion to the bottom surface of the air supply port is consistent with the distance from the second mounting portion to the bottom surface of the air supply channel;

[0013] The first flow guide portion is in the shape of a concave arc surface, and its two ends are connected with the right end of the first mounting portion and the right end of the second mounting portion respectively;

[0014] The second flow guide portion is in the shape of a convex arc surface, and its two ends are connected with the left end of the first mounting portion and the left end of the second mounting portion respectively.

[0015] The above technical scheme guides the cold energy in the air supply channel to flow to the air supply ports on the left and right sides of the movable flow guide plate respectively through the arrangement of the first flow guide portion and the second flow guide portion, and reduces the local pressure loss of the cold energy flow.

[0016] In some embodiments, the length of the first mounting portion is 0.2-0.25 times the length of the cabinet, the length of the second mounting portion is 0.25-0.3 times the length of the first mounting portion, and the left end of the second mounting portion is aligned with the middle position of the first mounting portion.

[0017] In some embodiments, the arc surface radius of the first flow guide portion is 350-450 mm, and the arc surface radius of the second flow guide portion is 400-500 mm.

[0018] In some embodiments, the flow guide device further comprises a driving mechanism connected with the movable flow guide plate, and the driving mechanism is in communication connection with the control system; the control system controls the movement of the movable flow guide plate by controlling the actuation of the driving mechanism.

[0019] In some embodiments, the fixed deflector specifically comprises a first fixed part, a second fixed part and a directional deflector part; the first fixed part is attached to the left side of the air supply channel; the second fixed part is attached to the bottom surface of the air supply channel; the directional deflector part is in the shape of a concave arc surface, and its two ends are connected to the top end of the first fixed part and the right end of the second fixed part, respectively. Through the arrangement of the directional deflector part, the cold energy in the air supply channel is guided to flow towards the air supply port.

[0020] In some embodiments, the height of the top end of the first fixed part is flush with the height of the top of the evaporation chamber; the distance from the right end of the second fixed part to the left side of the air supply channel is 0.25-0.3 times the length of the cabinet.

[0021] In some embodiments, the cabinet tank is provided with a first temperature detector and a second temperature detector, the first temperature detector is arranged at the left wall of the cabinet tank, and the second temperature detector is arranged at the right wall of the cabinet tank; the first temperature detector and the second temperature detector are both in communication connection with the control system.

[0022] The application also provides a temperature control method for a horizontal air-cooled refrigerator, which is applied to the horizontal air-cooled refrigerator described above and comprises the following steps:

[0023] The first temperature detector collects the temperature t1 at the left wall of the cabinet tank in real time, the second temperature detector collects the temperature t2 at the right wall of the cabinet tank in real time, and both of them upload the collection results to the control system in real time;

[0024] The control system calculates the temperature difference value △T in the cabinet according to formula (1),

[0025] △T=t2-t1 (1);

[0026] The size of the temperature difference value △T in the cabinet and the preset temperature difference threshold Ta is judged;

[0027] If △T=Ta, the movable deflector can remain in the current position;

[0028] If △T>Ta, the control system controls the movable deflector to move to the left until △T=Ta;

[0029] If △T

[0030] The above technical solution can dynamically adjust the cold energy flow in the air supply channel according to the temperature difference in the cabinet, realize real-time on-demand distribution of cold energy, significantly improve the uniformity of the temperature distribution in the cabinet, and further make the operation of the refrigerator more energy-saving and efficient.

[0031] Based on the above technical scheme, the horizontal air-cooled refrigerator and the temperature control method thereof in the embodiment of the present application solve the uneven temperature distribution in the cabinet of the existing horizontal air-cooled refrigerator, optimize the cold quantity flow in the air supply duct, realize the balanced distribution and real-time on-demand distribution of the cold quantity, and significantly improve the uniformity of the temperature distribution in the cabinet, so that the operation of the refrigerator is more efficient and energy-saving. BRIEF DESCRIPTION OF DRAWINGS

[0032] The accompanying drawings, which are included to provide a further understanding of the present application and are incorporated in and constitute a part of this application, illustrate embodiments of the present application and serve to explain the present application, and do not constitute improper limitations on the present application. In the drawings:

[0033] Figure 1 It is a schematic diagram of the air flow direction of the prior art horizontal air-cooled refrigerator;

[0034] Figure 2 It is a schematic diagram of the structure of the air supply duct side of the prior art horizontal air-cooled refrigerator;

[0035] Figure 3 It is a schematic diagram of the three-dimensional structure of the horizontal air-cooled refrigerator of the present application (perspective air supply duct);

[0036] Figure 4 It is a schematic diagram of the structure of the air supply duct side of the horizontal air-cooled refrigerator of the present application;

[0037] Figure 5 It is a velocity vector diagram of the middle section of the air supply duct obtained by simulation analysis of the prior art;

[0038] Figure 6 It is a velocity vector diagram of the middle section of the air supply duct obtained by simulation analysis of the present application;

[0039] Figure 7 It is a temperature cloud diagram of the middle section of the air supply duct obtained by simulation analysis of the prior art;

[0040] Figure 8 It is a temperature cloud diagram of the middle section of the air supply duct obtained by simulation analysis of the present application;

[0041] Figure 9 It is a load temperature cloud diagram in the cabinet obtained by simulation analysis of the prior art;

[0042] Figure 10 It is a load temperature cloud diagram in the cabinet obtained by simulation analysis of the present application;

[0043] Figure 11 It is a flowchart of the temperature control method of the horizontal air-cooled refrigerator of the present application.

[0044] In the drawings:

[0045] 1, box shell; 2, evaporator; 3, evaporating fan; 4, air supply duct; 5, air supply port; 6, air return duct; 7, air return port; 8, cabinet front wall; 9, cabinet rear wall; 10, evaporating chamber; 11, movable deflector; 111, first mounting portion; 112, second mounting portion; 113, first deflection portion; 114, second deflection portion; 12, fixed deflector; 121, first fixed portion; 122, second fixed portion; 123, directional deflection portion. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative effort fall within the scope of the present application.

[0047] In the description of the present application, it should be understood that the terms “center”, “upper”, “lower”, “top”, “bottom”, “inner”, “outer”, “left”, “right”, “front”, “back”, and the like indicate the orientation or positional relationship based on the drawings shown in the application and the accompanying drawings, and are only used to facilitate the description of the present application and simplify the description, and are not intended to 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 present application. Figure 3

[0048] The terms “first”, “second”, and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with “first”, “second”, and the like can explicitly or implicitly include one or more of the features.

[0049] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms “mounting”, “connection”, “connecting” should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be direct connection, or indirect connection through an intermediate medium; it can be the communication inside two elements. For a person of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0050] Reference Figure 3 , Figure 4 ​As shown, the present application provides a horizontal air-cooled refrigerator, which comprises a control system, a cabinet body and a flow guide device. The cabinet body further comprises a cabinet shell 1 and a cabinet tank arranged in the cabinet shell 1. Specifically, the cabinet shell 1 comprises an inner shell, an outer shell and a foamed heat preservation layer between the inner shell and the outer shell. The cabinet tank has a cabinet tank front wall 8 and a cabinet tank rear wall 9 arranged opposite to each other, and has a cabinet tank left wall and a cabinet tank right wall arranged opposite to each other; the inner cavity of the cabinet tank is the storage space of goods in the cabinet. The cabinet tank front wall 8 and the inner wall of the cabinet shell 1 form an air supply channel 4, and a plurality of air supply openings 5 are formed on the cabinet tank front wall 8, which are usually arranged in rows along the length direction of the cabinet body. The cabinet tank rear wall 9 and the inner wall of the cabinet shell 1 form an air return channel 6, and a plurality of air return openings 7 are formed on the cabinet tank rear wall 9, which are usually arranged in rows along the length direction of the cabinet body. The cabinet body is further provided with an evaporation chamber 10 located at the lower right of the cabinet shell 1, and the evaporation chamber 10 is in communication with the air supply channel 4 and the air return channel 6.

[0051] In combination Figure 1 , Figure 2 As shown, the present application is improved on the basis of the prior art horizontal air-cooled refrigerator, and the main improvement is that a flow guide device is additionally arranged in the air supply channel 4. The flow guide device comprises a fixed flow guide plate 12 and a movable flow guide plate 11 arranged in the air supply channel 4, which are used to guide the flow of cold energy entering the air supply channel 4 from the evaporation chamber 10. The fixed flow guide plate 12 is arranged at the corner of the air supply channel 4 away from the evaporation chamber 10, which significantly reduces the invalid flow of cold energy in the air supply channel 4 and improves the air volume of the air supply openings 5; the movable flow guide plate 11 is arranged in the middle of the air supply channel 4 and can reciprocate along the length direction of the cabinet body under the control of the control system, so as to adjust the air volume ratio of the air supply openings 5 on the left and right sides, balance the cold energy entering the cabinet from the air supply openings 5 on the left and right sides, and improve the uniformity of the temperature distribution in the cabinet. The fixed flow guide plate 12 and the movable flow guide plate 11 are clamped between the cabinet tank front wall 8 and the inner wall of the cabinet shell 1, that is, the front and back surfaces of the fixed flow guide plate 12 and the movable flow guide plate 11 are respectively attached to the surface of the cabinet shell 1 and the cabinet tank front wall 8, that is, the thickness of the fixed flow guide plate 12 and the movable flow guide plate 11 is consistent with the width of the air supply channel 4. The fixed flow guide plate 12 and the movable flow guide plate 11 can be made of foamed material, but are not limited thereto.

[0052] Through the arrangement of the fixed flow guide plate 12 and the movable flow guide plate 11, the above-mentioned schematic embodiment optimizes the flow of cold energy in the air supply channel 4, realizes the balanced distribution of cold energy, improves the uniformity of the temperature distribution in the cabinet, and enables the refrigerator to operate efficiently and energy-savingly.

[0053] Referring to Figure 3 , Figure 4 In some embodiments, the movable flow guide plate 11 further comprises a first mounting portion 111, a second mounting portion 112, a first flow guide portion 113 and a second flow guide portion 114.

[0054] The first mounting portion 111 and the second mounting portion 112 are arranged in parallel and opposite to each other, and are both in sliding connection with the cabinet shell 1, so that the movable guide plate 11 can reciprocate along the length direction of the cabinet body. Further, a sliding groove is recessed on the inner wall of the cabinet shell 1, and a sliding strip is arranged on the first mounting portion 111 and the second mounting portion 112, and the sliding strip is in sliding connection with the sliding groove.

[0055] The first guide portion 113 is connected with the right end of the first mounting portion 111 and the right end of the second mounting portion 112 respectively, and the first guide portion 113 is in the shape of a concave arc surface, so as to reduce the local resistance loss of the cold quantity flow at this position and guide more cold quantity to flow to the right air supply port 5. The second guide portion 114 is connected with the left end of the first mounting portion 111 and the left end of the second mounting portion 112 respectively, and the second guide portion 114 is in the shape of a convex arc surface, so as to make the cold quantity in the left air supply duct 4 flow smoothly. The distance H1 from the first mounting portion 111 to the bottom surface of the air supply port 5 is consistent with the distance H2 from the second mounting portion 112 to the bottom surface of the air supply duct 4. Figure 6 As shown in the figure, the cold quantity flow in the air supply duct 4 is divided into two directions, one of which flows to the right air supply port 5 under the guidance of the first guide portion 113, and the other of which flows to the left air supply port 5 after flowing through the second mounting portion 112 under the guidance of the second guide portion 114.

[0056] In the above-mentioned schematic embodiment, the cold quantity in the air supply duct 4 is guided to flow to the air supply ports 5 on the left and right sides of the movable guide plate 11 respectively under the guidance of the first guide portion 113 and the second guide portion 114, so as to control the air volume ratio of the air supply ports 5 on the left and right sides and improve the uniformity of the temperature in the cabinet.

[0057] Referring to Figure 4 As shown in the figure, in some embodiments, the length W1 of the first mounting portion 111 is 0.2-0.25 times the length L of the cabinet body, the length W2 of the second mounting portion 112 is 0.25-0.3 times the length W1 of the first mounting portion 111, and the left end of the second mounting portion 112 is aligned with the middle position of the first mounting portion 111. In this schematic embodiment, the size of the first mounting portion 111 and the second mounting portion 112 is optimized.

[0058] Referring to Figure 4 As shown in the figure, in some embodiments, the arc surface radius R1 of the first guide portion 113 is 350-450 mm, and the arc surface radius R2 of the second guide portion 114 is 400-500 mm. In this schematic embodiment, the size of the first guide portion 113 and the second guide portion 114 is optimized.

[0059] In some embodiments, the flow guiding device further includes a drive mechanism connected to the movable flow guiding plate 11, and the drive mechanism is communicatively connected to the control system. The control system controls the movement of the movable flow guiding plate 11 by controlling the operation of the drive mechanism. The drive mechanism includes, but is not limited to, the application of power devices such as motors and electromagnets. In this illustrative embodiment, the movable flow guiding plate 11 can move under the control of the control system through the configuration of the drive mechanism.

[0060] Reference Figure 3 , Figure 4 As shown, in some embodiments, the fixed guide plate 12 further includes a first fixing part 121, a second fixing part 122, and a directional guide part 123. The fixed guide plate 12 has an approximately triangular structure, wherein the first fixing part 121 is attached to the left side of the air supply duct 4; the second fixing part 122 is attached to the bottom surface of the air supply duct 4; and the directional guide part 123 has a concave arc shape, with its two ends connected to the top end of the first fixing part 121 and the right end of the second fixing part 122, respectively. In this illustrative embodiment, the directional guide part 123 guides the cold air in the air supply duct 4 to flow towards the air outlet 5.

[0061] Reference Figure 4 As shown, in some embodiments, the top height of the first fixing part 121 is flush with the top height of the evaporation chamber 10; that is, the distance D1 between the top of the first fixing part 121 and the bottom surface of the air supply duct 4 is the same as the distance between the top of the evaporation chamber 10 and the bottom surface of the air supply duct 4. The distance D2 between the right end of the second fixing part 122 and the left side of the air supply duct 4 is 0.25 to 0.3 times the cabinet length L. This illustrative embodiment optimizes the size settings of the first fixing part 121 and the second fixing part 122.

[0062] In some embodiments, a first temperature detector and a second temperature detector are provided inside the cabinet. The first temperature detector is located on the left wall of the cabinet, and the second temperature detector is located on the right wall of the cabinet, respectively, for collecting the temperature at the left and right side walls inside the cabinet. Both the first and second temperature detectors are communicatively connected to the control system to upload the collected results to the control system in real time.

[0063] The following is combined with Figures 5-10 To further illustrate the advantages of the horizontal air-cooled freezer of the present invention compared to the prior art:

[0064] 1)Reference Figure 5 , Figure 6 As shown in the velocity vector diagram of the middle section of the air supply duct 4, compared with the prior art, the present invention reduces the ineffective flow of cold energy at the left corner of the air supply duct 4, optimizes the flow of cold energy in the air supply duct 4, adjusts the air volume ratio of the left and right air supply outlets 5, and significantly increases the air volume and wind speed of the left and right air supply outlets 5.

[0065] 2)Reference Figure 7 , Figure 8 The air supply duct 4 middle section temperature cloud chart shown in the figure can know that, compared with the prior art, the cold temperature at the left and right air supply outlets 5 in the air supply duct 4 is significantly reduced, that is, the yellow area representing higher temperature in the figure is significantly reduced, and the cold temperature at the right air supply outlet 5 is significantly reduced in particular.

[0066] 3)Reference Figure 9 , Figure 10 The cabinet load temperature cloud chart shown in the figure can know that, compared with the prior art, the load temperature on the left and right sides in the cabinet is significantly reduced, that is, the red and yellow areas representing higher temperature in the figure are significantly reduced, and the load temperature on the right side in the cabinet is significantly reduced in particular, thereby effectively improving the uniformity of the temperature distribution in the cabinet.

[0067] Referring to Figure 11 shown in the figure and combining Figure 3 , the application further provides a temperature control method of the horizontal air-cooled refrigerator, applied to the horizontal air-cooled refrigerator, and including the following steps:

[0068] The first temperature detector collects the temperature t1 at the left wall of the cabinet in real time, the second temperature detector collects the temperature t2 at the right wall of the cabinet in real time, and both of them upload the collection results to the control system in real time;

[0069] The control system calculates the temperature difference value △T in the cabinet according to formula (1),

[0070] △T=t2-t1 (1);

[0071] The size of the temperature difference value △T and the preset temperature difference threshold Ta is judged; it needs to be explained that the value of the preset temperature difference threshold Ta is usually greater than 0;

[0072] If △T=Ta, the movable deflector 11 can keep the current position unchanged;

[0073] If △T>Ta, the control system controls the movable deflector 11 to move to the left to increase the air volume of the right air supply outlet 5, until △T=Ta, at which time the movable deflector 11 stops moving;

[0074] If △T

[0075] The above-mentioned schematic embodiment can dynamically adjust the cold flow in the air supply duct 4 according to the temperature difference in the cabinet, realize real-time on-demand distribution of the cold, significantly improve the uniformity of the temperature distribution in the cabinet, and further make the operation of the refrigerator more energy-saving and efficient.

[0076] In summary, the horizontal air-cooled refrigerator and the temperature control method thereof solve the uneven temperature distribution in the existing horizontal air-cooled refrigerator, optimize the cold flow in the air supply duct, realize the balanced distribution and real-time on-demand distribution of the cold, and significantly improve the uniformity of the temperature distribution in the refrigerator, so that the operation of the refrigerator is more efficient and energy-saving.

[0077] It should be noted that: the various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0078] The above embodiments are only used to illustrate the technical solutions of the present application but not limit it; although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the specific embodiments of the present application can be modified or some technical features can be replaced by equivalent; without departing from the spirit of the technical scheme of the present application, they should be covered in the technical scheme range of the present application.

Claims

1. A horizontal air-cooled refrigerator, characterized by comprising: The application relates to a control system and a cabinet body. The cabinet body comprises a cabinet shell and a cabinet inner box arranged in the cabinet shell, the cabinet inner box has oppositely arranged front and rear cabinet inner box walls, an air supply channel is formed between the front cabinet inner box wall and the inner wall of the cabinet shell, and a plurality of air supply openings are arranged on the front cabinet inner box wall; the cabinet body is further provided with an evaporation chamber located at the lower right of the cabinet shell, the evaporation chamber is communicated with the air supply channel, and a flow guide device is arranged between the front cabinet inner box wall and the inner wall of the cabinet shell. The flow guide device comprises a fixed flow guide plate and a movable flow guide plate, the fixed flow guide plate is located at the corner of the air supply channel far from the evaporation chamber, and the movable flow guide plate is located at the middle of the air supply channel and can reciprocate along the length direction of the cabinet body under the control of the control system. The movable flow guide plate comprises a first mounting part and a second mounting part arranged in parallel in the up-down direction, the first mounting part and the second mounting part are both in sliding connection with the cabinet shell, so that the movable flow guide plate can reciprocate along the length direction of the cabinet body, the distance from the first mounting part to the bottom surface of the air supply opening is consistent with the distance from the second mounting part to the bottom surface of the air supply channel, the first flow guide part is in the shape of an arc surface with concave shape, and the two ends of the first flow guide part are connected with the right end of the first mounting part and the right end of the second mounting part respectively, and the second flow guide part is in the shape of an arc surface with convex shape, and the two ends of the second flow guide part are connected with the left end of the first mounting part and the left end of the second mounting part respectively.

2. The horizontal air-cooled refrigerator according to claim 1, characterized in that, The length of the first mounting part is 0.2-0.25 times the length of the cabinet body, the length of the second mounting part is 0.25-0.3 times the length of the first mounting part, and the left end of the second mounting part is aligned with the middle position of the first mounting part. The arc surface radius of the first flow guide part is 350-450 mm, and the arc surface radius of the second flow guide part is 400-500 mm. The flow guide device further comprises a driving mechanism connected with the movable flow guide plate, the driving mechanism is in communication connection with the control system, and the control system controls the movement of the movable flow guide plate by controlling the operation of the driving mechanism. The fixed flow guide plate comprises a first fixed part, a second fixed part and a directional flow guide part, the first fixed part is arranged on the left side of the air supply channel, the second fixed part is arranged on the bottom surface of the air supply channel, and the directional flow guide part is in the shape of an arc surface with concave shape, and the two ends of the directional flow guide part are connected with the top end of the first fixed part and the right end of the second fixed part respectively.

3. The horizontal air-cooled refrigerator according to claim 2, characterized in that, The top end of the first fixed part is flush with the top of the evaporation chamber, and the distance from the right end of the second fixed part to the left side of the air supply channel is 0.25-0.3 times the length of the cabinet body.

4. The horizontal air-cooled refrigerator according to claim 3, characterized in that, The cabinet inner box is provided with a first temperature detector and a second temperature detector, the first temperature detector is arranged at the left wall of the cabinet inner box, and the second temperature detector is arranged at the right wall of the cabinet inner box; the first temperature detector and the second temperature detector are both in communication connection with the control system.

5. The horizontal air-cooled refrigerator according to any one of claims 2-4, characterized in that, The application further relates to a control method of the cabinet body.

6. The horizontal air-cooled refrigerator according to claim 1, wherein ​ 7. The horizontal air-cooled refrigerator according to claim 6, characterized in that ​ 8. The horizontal air-cooled refrigerator according to claim 1, wherein ​ 9. A temperature control method of a horizontal air-cooled refrigerator, applied to the horizontal air-cooled refrigerator according to claim 8, characterized in that, ​ The first temperature detector collects the temperature t1 of the left wall of the cabinet in real time, the second temperature detector collects the temperature t2 of the right wall of the cabinet in real time, and both upload the collection results to the control system in real time; The control system calculates the temperature difference value △T in the cabinet according to formula (1), △T=t2-t1 (1); Judge the size of the temperature difference value △T in the cabinet and the preset temperature difference threshold Ta; If △T=Ta, the movable guide plate remains in the current position; If △T>Ta, the control system controls the movable guide plate to move to the left until △T=Ta; If △T<Ta, the control system controls the movable guide plate to move to the right until △T=Ta.

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