Indirect cooling constant temperature and humidity cabinet

Abstract

The utility model discloses an indirect cooling type constant temperature and humidity cabinet, comprising a cabinet body, a refrigeration system is arranged in the cabinet body, the refrigeration system comprises a water tank evaporator, an air evaporator, a water tank, and a water tank. An air duct is arranged in the cabinet body, and the water tank is located in the cabinet body; the air evaporator is located in the air duct; an air heater is arranged in the cabinet body; the water tank evaporator is located in the water tank, one end of the pipeline of the water tank evaporator is connected to the compressor, and the other end of the pipeline of the water tank evaporator is connected to the condenser; the input pipe of the air evaporator pipeline and the output pipe of the air evaporator pipeline extend into the water tank, and the refrigeration water pump is connected to the pipeline of the air evaporator. The refrigeration water pump is located in the water tank. When cooling, the cooling is relatively smooth and the humidity fluctuation is small. Since the cooling is relatively smooth, the dehumidification is relatively smooth and the temperature fluctuation is small. It avoids affecting the quality of the stored items. The structure is compact, leaving more space in the cabinet body. Improve efficiency, reduce energy consumption, and be more environmentally friendly.

Description

Technical Field

[0001] The utility model relates to an indirect cooling type constant temperature and humidity cabinet. The cabinet body belongs to the technical field of constant temperature and humidity cabinets. Background Art

[0002] The constant temperature and humidity cabinets currently on the market basically use finned evaporator refrigeration (air cooling) to control the temperature and humidity inside the cabinet. When cooling, the finned evaporator is cooled, and the air is passed through the finned evaporator by a fan to achieve cooling inside the cabinet; when dehumidification is required: dehumidification is also performed by cooling inside the cabinet. The disadvantages of this refrigeration method are: the cooling speed is fast. When cooling is required, the temperature inside the box drops too quickly, which can easily cause large fluctuations in the humidity inside the box. That is, when the temperature drops rapidly, the humidity also drops, resulting in low humidity and unstable humidity. When dehumidification is required, refrigeration is used for dehumidification, resulting in a fast cooling speed, which can easily cause low temperature, and it is difficult to ensure the constant temperature and humidity requirements required by the constant temperature and humidity cabinet. It may cause adverse quality effects on valuable items in the constant temperature and humidity cabinet. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an indirect cooling type constant temperature and humidity cabinet, which has small humidity fluctuation when cooling and small temperature fluctuation when dehumidifying, and has a compact structure.

[0004] The utility model can adopt the following technical solutions:

[0005] An indirect cooling constant temperature and humidity cabinet comprises a cabinet body, a refrigeration system is arranged in the cabinet body, the refrigeration system comprises a water tank evaporator, an air evaporator, a water tank, an air duct is arranged in the cabinet body, and the water tank is located in the cabinet body; the air evaporator is located in the air duct, the air duct is provided with a fan, the air duct has an outlet connected with the cabinet body, and an air heater is arranged in the cabinet body; the water tank evaporator is located in the water tank, one end of the pipeline of the water tank evaporator is connected with the compressor, and the other end of the pipeline of the water tank evaporator is connected with the condenser; the air evaporator comprises an air evaporator pipeline, an input pipe and an output pipe of the air evaporator pipeline extend into the water tank, a refrigeration water pump is connected with the pipeline of the air evaporator, and the refrigeration water pump is located in the water tank.

[0006] The utility model can further solve the problem by taking the following improvement measures:

[0007] A further improvement measure is as follows: the water tank comprises a metal inner tank and a heat-insulating layer, wherein the heat-insulating layer is located outside the metal inner tank. The water tank has a cover body covering an opening of the water tank.

[0008] A further improvement measure is that the water tank evaporator is closely attached to the inner side of the metal liner.

[0009] Further improvement measures are: a humidification system is provided in the cabinet, the humidification system includes a humidification aluminum and a water suction hose, the inlet end of the water suction hose extends into the water tank, the humidification water pump is connected to the water suction hose, and the outlet end of the water suction hose is located above the humidification aluminum.

[0010] A further improvement measure is that a water level alarm is arranged in the water tank.

[0011] A further improvement measure is that a water temperature probe is arranged in the water tank.

[0012] A further improvement measure is that the air duct is located on the inner rear wall of the cabinet.

[0013] A further improvement measure is that the humidifying aluminum is located on the inner rear wall of the cabinet.

[0014] Further improvement measures are as follows: the humidification air duct is located on the inner back wall of the cabinet, the humidification air duct has an outlet connected to the cabinet, the heating aluminum is located in the humidification air duct, and the air heater is arranged in the humidification air duct.

[0015] A further improvement measure is that the air heater is arranged in the air duct.

[0016] The above technical solution has the following technical effects:

[0017] 1. The utility model first cools the water in the water tank, and then uses the refrigeration water pump to make the water flow through the air evaporator through water circulation. Because the water is slowly cooled, the temperature of the air evaporator is also slowly cooled. Compared with the prior art, the cooling is relatively smooth and the humidity fluctuation is small. When dehumidifying, the cooling is relatively smooth, the dehumidification is relatively smooth, and the temperature fluctuation is small.

[0018] 2. The utility model prevents the items in the cabinet from being affected by sudden temperature drop or sudden humidity change, thus avoiding affecting the quality of the stored items and facilitating the storage of items.

[0019] 3. The refrigeration water pump of the utility model is located in the water tank, which has a compact structure and leaves more space for use in the cabinet. The modification of the existing structure can be reduced, and the modification is more friendly.

[0020] 4. The water tank of the utility model includes a metal inner tank and a heat-insulating layer, and the heat-insulating layer is located outside the metal inner tank. This structure is conducive to keeping the water in the water tank at a constant temperature, reducing the scattering of heat energy outside the cabinet, improving efficiency, reducing energy consumption, and being more environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the utility model when the cabinet door is removed.

[0022] Figure 2 yes Figure 1Schematic diagram of the cross-sectional structure in the AA direction.

[0023] Figure 3 yes Figure 2 A partial enlarged schematic diagram of .

[0024] Figure 4 It is a schematic diagram of the structure after the air duct cover is removed from the cabinet.

[0025] Figure 5 It is a schematic diagram of the three-dimensional structure after the air duct cover is removed from the cabinet.

[0026] Figure 6 It is an exploded diagram of the refrigeration system.

[0027] Figure 7 is a schematic diagram of the exploded components of the humidification system.

[0028] Figure 8 yes Figure 1 Schematic diagram of the cross-sectional structure in the BB direction.

[0029] Fig. 9 This is a schematic diagram of an air heater installed in a humidification air duct. DETAILED DESCRIPTION

[0030] The present invention will be described in detail below in conjunction with specific embodiments.

[0031] Example 1: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown, an indirect cooling constant temperature and humidity cabinet includes a cabinet body 1, a refrigeration system is arranged in the cabinet body 1, and the refrigeration system includes a water tank evaporator 2, an air evaporator 3, and a water tank 4. An air duct 5 is arranged in the cabinet body 1, and the water tank 4 is located in the cabinet body. The air evaporator 3 is located in the air duct 5, and the air duct 5 is provided with a fan 51. The air duct 5 has an outlet connected to the cabinet. A heater 6 is arranged in the cabinet body, and the air heater can be arranged in the air duct. The water tank evaporator 2 is located in the water tank 4. One end of the pipeline of the water tank evaporator 2 is connected to the compressor 7, and the other end of the pipeline of the water tank evaporator 2 is connected to the condenser. The connection method can be the same as that of a conventional heat pump system. The air evaporator 3 includes an air evaporator pipeline 31, and the input pipe and the output pipe of the air evaporator pipeline 31 extend into the water tank. The cooling water pump 32 is connected to the air evaporator pipeline 31. In this example, the cooling water pump is located in the water tank.

[0032] Working principle: When cooling is required, the compressor works, and the water in the water tank is cooled by the evaporator of the water tank, and then the low-temperature water is sent to the air evaporator through the refrigeration water pump, and the air evaporator fins are used to dissipate the cold (the air evaporator can be an air evaporator with fins), and then the cold air is sent to the box through the fan to achieve the effect of cooling or dehumidification (dehumidification: dehumidification by cooling). The refrigeration water pump is used to circulate the water in the air evaporator and the water tank. Since the water in the water tank is cooled first, and then the refrigeration water pump is used to make the water flow through the air evaporator through water circulation, because the water is slowly cooled, the temperature of the air evaporator is also slowly cooled. Compared with the existing technology, the cooling is relatively smooth and the humidity fluctuation is small. During dehumidification, the cooling is relatively smooth, the dehumidification is relatively smooth, and the temperature fluctuation is small. The items in the cabinet are prevented from being affected by sudden large temperature drops or sudden large changes in humidity. It avoids affecting the quality of the stored items.

[0033] Of course, when the temperature needs to be raised, the heater in the air duct is used to heat it, and the hot air is transferred to the box through the fan to achieve the temperature increase.

[0034] The cooling water pump is located inside the water tank, which has a compact structure and leaves more space inside the cabinet.

[0035] Example 2: Figure 2 The characteristic of this embodiment is that the water tank includes a metal inner tank 41 and a heat-insulating layer 42. The heat-insulating layer is located outside the metal inner tank. The heat-insulating layer can use heat-insulating materials such as foaming materials or heat-insulating cotton. The water tank has a cover body covering the opening of the water tank. The water tank evaporator 2 is closely attached to the inner side of the metal inner tank 41. This structure is conducive to keeping the water in the water tank at a constant temperature, reducing the scattering of heat energy outside the cabinet, improving efficiency, reducing energy consumption, and being more environmentally friendly. The rest can be the same as in Embodiment 1.

[0036] Example 3: Figure 4 , Figure 7 As shown, the characteristic of this example is that a humidification system is provided in the cabinet, the humidification system includes a humidification aluminum 8 and a water extraction hose 81, the inlet end of the water extraction hose 81 extends into the water tank 4, the humidification water pump 83 is connected to the water extraction hose 81, and the outlet end of the water extraction hose 81 is located above the humidification aluminum. The rest can be the same as in Example 1 or Example 2.

[0037] Example 4: Figure 2 The characteristic of this example is that a water level alarm 401 is provided in the water tank 4. In this way, the water level of the water tank can be monitored at any time to prevent the water level from becoming low and water can be added in time. The rest can be the same as in Example 1, Example 2 or Example 3.

[0038] Example 5: Figure 2The characteristic of this embodiment is that a water temperature probe 402 is provided in the water tank. In this way, the temperature of the water in the water tank can be controlled, which is also conducive to controlling the temperature inside the cabinet. The rest can be the same as in Embodiment 1, Embodiment 2, Embodiment 3 or Embodiment 4.

[0039] Example 6: Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown, the characteristic of this example is that the air duct 5 is located at the inner rear wall of the cabinet 1. The humidifying aluminum 8 is located at the inner rear wall of the cabinet 1.

[0040] The humidification air duct 82 is located on the inner back wall of the cabinet. The humidification air duct 82 has an outlet connected to the cabinet. The heating aluminum is located in the humidification air duct. The humidification air duct is provided with a humidification fan 84. Fig. 9 As shown, the air heater can also be arranged in the humidification air duct. In this example, the air duct and the humidification air duct share a duct cover plate 800. This example has a compact structure and is conducive to increasing the internal usable space. The rest is the same as in Example 3.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An indirect cooling constant temperature and humidity cabinet, characterized by: It includes a cabinet body, a refrigeration system is arranged in the cabinet body, the refrigeration system includes a water tank evaporator, an air evaporator, and a water tank, an air duct is arranged in the cabinet body, and the water tank is located in the cabinet body; the air evaporator is located in the air duct, the air duct is provided with a fan, the air duct has an outlet connected with the cabinet body, and an air heater is arranged in the cabinet body; the water tank evaporator is located in the water tank, one end of the pipeline of the water tank evaporator is connected with the compressor, and the other end of the pipeline of the water tank evaporator is connected with the condenser; the air evaporator includes an air evaporator pipeline, an input pipe and an output pipe of the air evaporator pipeline extend into the water tank, and a refrigeration water pump is connected with the pipeline of the air evaporator; the refrigeration water pump is located in the water tank.

2. The indirect cooling constant temperature and humidity cabinet according to claim 1 is characterized in that: The water tank comprises a metal inner tank and a heat-insulating layer, wherein the heat-insulating layer is arranged outside the metal inner tank, and the water tank is provided with a cover body covering an opening of the water tank.

3. The indirect cooling constant temperature and humidity cabinet according to claim 1 is characterized in that: The water tank evaporator is closely attached to the inner side of the metal inner tank.

4. The indirect cooling constant temperature and humidity cabinet according to claim 1 is characterized in that: A humidification system is arranged in the cabinet, and the humidification system comprises a humidification aluminum and a water extraction hose. The inlet end of the water extraction hose extends into the water tank, the humidification water pump is connected with the water extraction hose, and the outlet end of the water extraction hose is located above the humidification aluminum.

5. The indirect cooling constant temperature and humidity cabinet according to claim 1 is characterized in that: A water level alarm is arranged in the water tank.

6. The indirect cooling constant temperature and humidity cabinet according to claim 1 is characterized in that: A water temperature probe is arranged in the water tank.

7. The indirect cooling constant temperature and humidity cabinet according to claim 1 is characterized in that: The air duct is located on the inner rear wall of the cabinet.

8. The indirect cooling constant temperature and humidity cabinet according to claim 4 is characterized in that: The humidifying aluminum is located on the inner rear wall of the cabinet.

9. The indirect cooling constant temperature and humidity cabinet according to claim 8 is characterized in that: The humidification air duct is located on the inner rear wall of the cabinet body, the humidification air duct has an outlet connected with the cabinet, the heating aluminum is located in the humidification air duct, and the air heater is arranged in the humidification air duct.

10. The indirect cooling constant temperature and humidity cabinet according to claim 1 is characterized in that: The air heater is arranged in the air duct.

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