Drying machine

Abstract

The utility model discloses a drying machine which comprises a machine box, an inner cavity of the machine box is divided into three cavities through a first partition plate assembly and a second partition plate assembly, the three cavities are an electric cavity, an inner circulation cavity and an outer circulation cavity respectively, and the volume of the inner circulation cavity is larger than that of the outer circulation cavity. The second partition plate assembly comprises an assembly plate, a heat exchange mechanism is assembled on the assembly plate through a clamping assembly, the heat exchange mechanism comprises a first heat conduction plate, a semiconductor chilling plate and a second heat conduction plate which are arranged in a stacked mode from top to bottom, and the semiconductor chilling plate is embedded in an assembly window of the assembly plate. The first heat-conducting plate and the second heat-conducting plate are respectively contacted with the cold end and the hot end of the semiconductor chilling plate; a first radiator connected with the first heat conduction plate is assembled in the outer circulation cavity, and first fans are assembled on the two sides of the first radiator. A second radiator connected with the second heat conduction plate is assembled in the inner circulation cavity, and second fans are assembled on the two sides of the second radiator. The dryer disclosed by the utility model is small in size and low in maintenance cost.

Description

Technical Field

[0001] This utility model belongs to the field of drying equipment technology, and specifically relates to a dryer. Background Technology

[0002] Traditional heat pump dryers are a common type of drying equipment. They transfer heat through a compressor and refrigerant circulation to achieve heating and dehumidification. They require components such as compressors, evaporators, and condensers, resulting in a complex structure, large size, high energy consumption, and slow response. Because of the moving parts like the compressor, heat pumps experience wear and tear, requiring regular maintenance and incurring high installation and maintenance costs. Furthermore, the compressor generates noise during operation. Due to these characteristics, traditional heat pump dryers are not suitable for certain application environments, such as home, laboratory, and vehicle environments. Summary of the Invention

[0003] This invention addresses the limitations of traditional heat pump dryers in application scenarios by providing a semiconductor refrigeration-based dryer. This dryer is compact, small in size, low in noise, and has low maintenance costs, making it suitable for home, laboratory, and vehicle environments. The objective of this invention is achieved through the following technical solution:

[0004] A dryer includes a casing, the inner cavity of which is divided into an air supply chamber and an electrical chamber by a first partition assembly; the air supply chamber is further divided into an inner circulation chamber and an outer circulation chamber by a second partition assembly, the inner circulation chamber being located between the outer circulation chamber and the electrical chamber, and the volume of the inner circulation chamber being larger than that of the outer circulation chamber. The inner circulation chamber is connected to an external drying chamber through an air inlet and an air outlet formed on the casing, and the outer circulation chamber is connected to the outside through an air inlet and an air outlet formed on the casing; the second partition assembly includes an assembly plate on which a heat exchanger is mounted by a clamping assembly. The heat exchange mechanism includes a first heat-conducting plate, a thermoelectric cooler, and a second heat-conducting plate stacked from top to bottom. An assembly window extends vertically through the assembly plate, and the thermoelectric cooler is embedded within the assembly window. The first heat-conducting plate contacts the cold end of the thermoelectric cooler, and the second heat-conducting plate contacts the hot end of the thermoelectric cooler. A first radiator connected to the first heat-conducting plate is installed in the outer circulation chamber, and first fans are installed on both sides of the first radiator. A second radiator connected to the second heat-conducting plate is installed in the inner circulation chamber, and second fans are installed on both sides of the second radiator.

[0005] Preferably, the clamping assembly includes a first clamping plate located above the first heat-conducting plate and a second clamping plate located below the second heat-conducting plate. The first clamping plate, the second clamping plate, and the mounting plate are provided with alignment through holes, and clamping bolts are inserted into the through holes.

[0006] Preferably, the clamping assembly further includes two first limiting plates mounted on both sides of the first heat-conducting plate and two second limiting plates mounted on both sides of the second heat-conducting plate. Each of the first limiting plates is provided with a first limiting groove, and the two first limiting grooves are arranged opposite to each other. Each of the second limiting plates is provided with a second limiting groove, and the two second limiting grooves are arranged opposite to each other.

[0007] Preferably, the first limiting groove includes a first longitudinal groove wall abutting against the longitudinal sidewall of the first heat-conducting plate, and two first transverse groove walls abutting against the transverse sidewall of the first heat-conducting plate, wherein a first arc-shaped clearance notch is provided at the connection between the first transverse groove wall and the first longitudinal groove wall; the second limiting groove includes a second longitudinal groove wall abutting against the longitudinal sidewall of the second heat-conducting plate, and two second transverse groove walls abutting against the transverse sidewall of the second heat-conducting plate, wherein a second arc-shaped clearance notch is provided at the connection between the second transverse groove wall and the second longitudinal groove wall.

[0008] Preferably, the main body of the chassis is a cuboid box, the external circulation chamber is a cuboid chamber and is located at the end corner of the inner cavity of the chassis; the second partition assembly also includes a second longitudinal partition perpendicular to the assembly plate.

[0009] Preferably, the first partition assembly includes a first longitudinal partition and an inclined partition, the first longitudinal partition being parallel to the second longitudinal partition; the inclined partition is connected below the first longitudinal partition and inclined toward the second radiator, the second radiator being located directly below the first radiator.

[0010] Preferably, the chassis includes a top wall, side walls and a rear wall that intersect vertically. The air inlet is located on the top wall and the air outlet is located on the side wall. The central axes of the air inlet and the air outlet are perpendicular to each other, and the intersection of the two central axes falls on the inclined partition.

[0011] Preferably, the inclined partition is inclined at an angle of 45° relative to both the top wall and the side wall; the air outlet and the second fan have the same central axis, and one of the second fans is arranged adjacent to the air outlet.

[0012] Preferably, the air outlet window is opened on the side wall and located directly above the air outlet, and the air inlet window is opened on the rear wall; the air outlet window and the first fan have the same central axis, and one of the first fans is arranged adjacent to the air outlet window.

[0013] Preferably, the inner wall of the external circulation chamber is coated with a hydrophobic coating; the surface of the second radiator is coated with a high-temperature anti-oxidation coating; and a removable activated carbon filter is installed in the air outlet.

[0014] Compared with the prior art, the present invention has the following technical advantages: The dryer disclosed in this solution is small in size, low in noise, and low in maintenance cost. It has good environmental friendliness and applicability to special scenarios. The layout of each chamber is reasonable, ensuring that the inner circulation chamber has enough space to achieve sufficient heat exchange, and the overall structure is compact. The clamping component structure is reasonably set, which can ensure that the two heat-conducting plates and the semiconductor cooling chip are in effective contact, improving heat exchange efficiency, and is convenient for assembly and maintenance. The distribution position of the first partition component is reasonable. It not only has the function of separating the chambers, but also has the function of guiding air. The first longitudinal partition and the second longitudinal partition form an air duct. The oblique partition is set at an inclination and, together with the air inlet and air outlet, guides the air in the air duct to the second heat exchanger efficiently, thereby improving the heat exchange efficiency. The inner wall of the outer circulation chamber is coated with a hydrophobic coating to avoid condensate retention that could cause corrosion of the components and extend their service life. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the present invention and its working state;

[0016] Figure 2 This is a schematic diagram of the structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of this utility model;

[0018] Figure 4 This is a longitudinal sectional view of the heat exchange mechanism in this utility model;

[0019] Figure 5 This is a schematic diagram of the clamping component structure in this utility model;

[0020] The diagram shows the following markings: Drying chamber 10; Chassis 20; Air inlet duct 21; Air outlet duct 22; Air inlet window 23; Air outlet window 24; First clamping plate 31; First heat-conducting plate 32; Semiconductor cooling chip 33; Second heat-conducting plate 34; Second clamping plate 35; First limiting plate 36; Second limiting plate 37; Clamping bolt 38; Electrical chamber 40; External circulation chamber 50; First radiator 51; First fan 52; Internal circulation chamber 60; Second radiator 61; Second fan 62; First longitudinal partition 71; Inclined partition 72; Second longitudinal partition 81; Assembly plate 82. Detailed Implementation

[0021] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings:

[0022] See Figures 1-5 This embodiment discloses a dryer that uses a semiconductor cooling chip 33 for heat exchange and is used in conjunction with the drying chamber 10. It is small in size, compact in structure, and low in noise, and is mainly used in home, laboratory and other application scenarios.

[0023] The dryer includes a casing 20. The inner cavity of the casing 20 is divided into an air supply chamber and an electrical chamber 40 by a first partition assembly. The air supply chamber is further divided into an inner circulation chamber 60 and an outer circulation chamber 50 by a second partition assembly. The inner circulation chamber 60 is located between the outer circulation chamber 50 and the electrical chamber 40, and its volume is larger than that of the outer circulation chamber 50. The inner circulation chamber 60 is connected to the external drying chamber 10 through an air inlet and an air outlet on the casing 20. The air inlet is equipped with an air inlet pipe 21 aligned with its central axis, and the air outlet is equipped with an air outlet pipe 22 coaxial with it. The outer circulation chamber 50 is connected to the outside through an air inlet window 23 and an air outlet window 24 on the casing 20. The layout of each chamber is reasonable, ensuring that the inner circulation chamber 60 has sufficient space for adequate heat exchange, and the overall structure is compact.

[0024] The second partition assembly includes an assembly plate 82, on which a heat exchange mechanism is assembled via a clamping assembly. The heat exchange mechanism includes a first heat-conducting plate 32, a thermoelectric cooler 33, and a second heat-conducting plate 34 stacked from top to bottom. The assembly plate 82 has a through-hole assembly window, in which the thermoelectric cooler 33 is embedded. The first heat-conducting plate 32 contacts the cold end of the thermoelectric cooler 33, and the second heat-conducting plate 34 contacts the hot end of the thermoelectric cooler 33. A first radiator 51 connected to the first heat-conducting plate 32 is assembled in the outer circulation chamber 50, and a first fan 52 is assembled on both sides of the first radiator 51. A second radiator 61 connected to the second heat-conducting plate 34 is assembled in the inner circulation chamber 60, and a second fan 62 is assembled on both sides of the second radiator 61. The surface of the second radiator 61 is coated with a high-temperature anti-oxidation coating.

[0025] The clamping assembly includes a first clamping plate 31 located above the first heat-conducting plate 32 and a second clamping plate 35 located below the second heat-conducting plate 34. Alignment through holes are provided on the first clamping plate 31, the second clamping plate 35, and the mounting plate 82, and clamping bolts 38 are inserted into these through holes. The clamping assembly also includes two first limiting plates 36 mounted on both sides of the first heat-conducting plate 32 and two second limiting plates 37 mounted on both sides of the second heat-conducting plate 34. Each of the first limiting plates 36 has a first limiting groove, and the two first limiting grooves are arranged opposite each other. Each of the second limiting plates 37 has a first limiting groove. Two limiting grooves are arranged opposite each other. The first limiting groove includes a first longitudinal groove wall abutting against the longitudinal sidewall of the first heat-conducting plate 32, and two first transverse groove walls abutting against the transverse sidewall of the first heat-conducting plate 32. A first arc-shaped clearance notch is provided at the connection between the first transverse groove wall and the first longitudinal groove wall. The second limiting groove includes a second longitudinal groove wall abutting against the longitudinal sidewall of the second heat-conducting plate 34, and two second transverse groove walls abutting against the transverse sidewall of the second heat-conducting plate 34. A second arc-shaped clearance notch is provided at the connection between the second transverse groove wall and the second longitudinal groove wall. Assembly and maintenance are convenient. The two clamping plates and four limiting plates restrict the two heat-conducting plates' degrees of freedom in three vertical directions, ensuring effective contact between the two heat-conducting plates and the semiconductor cooling chip 33, improving heat exchange efficiency. The arc-shaped clearance notch facilitates positioning and assembly, and improves assembly accuracy.

[0026] The main body of the chassis 20 is a cuboid box, which includes a top wall, side walls and a rear wall that intersect vertically. The external circulation chamber 50 is a cuboid chamber and is located at the corner of the inner cavity of the chassis 20. The air outlet 24 is opened on the side wall and is located directly above the air outlet. The air inlet 23 is opened on the rear wall. The air outlet 24 and the first fan 52 have the same central axis, and one of the first fans 52 is arranged adjacent to the air outlet 24 to improve the air supply efficiency. The inner wall of the external circulation chamber 50 is coated with a hydrophobic coating to avoid condensation water retention that could cause corrosion of the components and extend their service life.

[0027] The second partition assembly also includes a second longitudinal partition 81 perpendicular to the mounting plate 82; the first partition assembly includes a first longitudinal partition 71 and an inclined partition 72, the first longitudinal partition 71 being parallel to the second longitudinal partition 81; the inclined partition 72 is connected below the first longitudinal partition 71 and inclined towards the second radiator 61, the second radiator 61 being located directly below the first radiator 51. The first partition assembly is rationally positioned, not only functioning to separate chambers but also to guide airflow, with the first longitudinal partition 71 and the second longitudinal partition 81 forming an air duct.

[0028] The casing 20 includes a top wall, side walls, and a rear wall that intersect vertically. The air inlet is located on the top wall, and the air outlet is located on the side wall. A removable activated carbon filter is installed inside the air outlet. The central axes of the air inlet and the air outlet are perpendicular to each other, and the intersection of the two central axes falls on the inclined partition 72. The inclined partition 72 has an inclination angle of 45° relative to both the top wall and the side wall. The air outlet and the second fan 62 share the same central axis, and one of the second fans 62 is located adjacent to the air outlet. The inclined partition 72, in conjunction with the positions of the air inlet and the air outlet, can efficiently guide the air in the duct to the second heat exchanger, thereby improving the heat exchange efficiency.

[0029] It should be understood that in the claims and description of this utility model, all instances of "comprising..." should be understood as having an open-ended meaning, that is, equivalent to "at least comprising...", and should not be understood as having a closed-ended meaning, that is, its meaning should not be understood as "only comprising...". The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0030] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model should be included within the protection scope of this utility model.

Claims

1. A dryer, comprising a casing, characterized in that, The inner cavity of the chassis is divided into an air supply chamber and an electrical chamber by a first partition assembly; the air supply chamber is further divided into an inner circulation chamber and an outer circulation chamber by a second partition assembly. The inner circulation chamber is located between the outer circulation chamber and the electrical chamber, and its volume is larger than that of the outer circulation chamber. The inner circulation chamber is connected to an external drying chamber through an air inlet and an air outlet on the chassis, while the outer circulation chamber is connected to the outside through an air inlet and an air outlet on the chassis. The second partition assembly includes an assembly plate on which a heat exchange mechanism is mounted via a clamping assembly. The heat exchange mechanism includes a first heat-conducting plate, a semiconductor cooling chip, and a second heat-conducting plate stacked from top to bottom. The assembly plate has a through-hole mounting window, and the semiconductor cooling chip is embedded within the mounting window. The first heat-conducting plate contacts the cold end of the semiconductor cooling chip, and the second heat-conducting plate contacts the hot end of the semiconductor cooling chip. A first radiator connected to the first heat-conducting plate is installed in the outer circulation chamber, and first fans are installed on both sides of the first radiator. A second radiator connected to the second heat-conducting plate is installed in the inner circulation chamber, and second fans are installed on both sides of the second radiator.

2. The dryer according to claim 1, characterized in that, The clamping assembly includes a first clamping plate located above the first heat-conducting plate and a second clamping plate located below the second heat-conducting plate. Alignment holes are provided on the first clamping plate, the second clamping plate, and the mounting plate, and clamping bolts are inserted into the holes.

3. A dryer according to claim 2, characterized in that, The clamping assembly further includes two first limiting plates mounted on both sides of the first heat-conducting plate and two second limiting plates mounted on both sides of the second heat-conducting plate. Each of the first limiting plates is provided with a first limiting groove, and the two first limiting grooves are arranged opposite to each other. Each of the second limiting plates is provided with a second limiting groove, and the two second limiting grooves are arranged opposite to each other.

4. A dryer according to claim 3, characterized in that, The first limiting groove includes a first longitudinal groove wall abutting against the longitudinal sidewall of the first heat-conducting plate, and two first transverse groove walls abutting against the transverse sidewall of the first heat-conducting plate. A first arc-shaped clearance notch is provided at the connection between the first transverse groove wall and the first longitudinal groove wall. The second limiting groove includes a second longitudinal groove wall abutting against the longitudinal sidewall of the second heat-conducting plate, and two second transverse groove walls abutting against the transverse sidewall of the second heat-conducting plate. A second arc-shaped clearance notch is provided at the connection between the second transverse groove wall and the second longitudinal groove wall.

5. A dryer according to any one of claims 1-4, characterized in that, The main body of the chassis is a cuboid box, and the external circulation chamber is a cuboid chamber located at the end corner of the inner cavity of the chassis; the second partition assembly also includes a second longitudinal partition perpendicular to the assembly plate.

6. A dryer according to claim 5, characterized in that, The first partition assembly includes a first longitudinal partition and an inclined partition. The first longitudinal partition is parallel to the second longitudinal partition. The inclined partition is connected below the first longitudinal partition and is inclined toward the second heat sink, which is located directly below the first heat sink.

7. A dryer according to claim 6, characterized in that, The chassis includes a top wall, side walls and a rear wall that intersect vertically. The air inlet is located on the top wall and the air outlet is located on the side wall. The central axes of the air inlet and the air outlet are perpendicular to each other, and the intersection of the two central axes falls on the inclined partition.

8. A dryer according to claim 7, characterized in that, The inclined partition is inclined at an angle of 45° relative to the top wall and side wall; the air outlet and the second fan have the same central axis, and one of the second fans is set adjacent to the air outlet.

9. A dryer according to claim 8, characterized in that, The air outlet window is located on the side wall and directly above the air outlet, while the air inlet window is located on the rear wall. The air outlet window and the first fan have the same central axis, and one of the first fans is located adjacent to the air outlet window.

10. A dryer according to claim 1, characterized in that, The inner wall of the external circulation chamber is coated with a hydrophobic coating; the surface of the second radiator is coated with a high-temperature anti-oxidation coating; and a removable activated carbon filter is installed in the air outlet.

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