Dehumidifier with defrosting effect

Abstract

The utility model discloses a dehumidifier with a defrosting effect, which relates to the technical field of dehumidifiers, and comprises a shell, a compressor, an evaporator, a condenser, a four-way valve and an electric control board, wherein the compressor, the evaporator, the condenser and the four-way valve are arranged in the shell, and the electric control board is electrically connected with the compressor and the four-way valve. The first pipeline is used for communicating the four-way valve with an outlet of the compressor; the second pipeline is used for communicating the four-way valve with an inlet of the compressor; the third pipeline is used for communicating the four-way valve with the evaporator; the fourth pipeline is used for communicating the four-way valve with the condenser; and the first pipeline, the second pipeline, the third pipeline and the fourth pipeline are all pipelines with a plurality of bent parts. By arranging the first pipeline, the second pipeline, the third pipeline and the fourth pipeline which are provided with the bent parts, the bent parts have the buffering function, damage to the pipelines caused by vibration of the compressor can be reduced, the maintenance cost is reduced, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of dehumidifiers, and particularly relates to a dehumidifier with a defrosting effect. Background Art

[0002] Dehumidifiers are used to remove moisture in the air and are widely applied in fields with high requirements for environmental humidity, such as medical treatment, electronics, chemical industry, food and medicine. When the existing dehumidifiers are operating, especially in a low-temperature environment, the evaporator is prone to frosting, which will affect the dehumidification effect and even the normal operation of the equipment. To solve the problem of evaporator frosting, the prior art discloses that by setting a four-way valve and using the four-way valve to change the gas path structure to form a dehumidification path and a defrosting path, defrosting of the evaporator is achieved. However, although the set four-way valve can achieve the defrosting effect, it makes the internal pipelines of the dehumidifier complex and these pipelines need to be connected to the compressor. However, due to the large vibration of the compressor, the pipelines are prone to looseness or even cracking, greatly increasing the maintenance frequency and cost.

[0003] It can be seen that the prior art still needs to be improved. Summary of the Utility Model

[0004] In view of the deficiencies of the above-mentioned prior art, the purpose of the utility model is to provide a dehumidifier with a defrosting effect, aiming to solve the defect that the pipelines in the existing dehumidifier with a defrosting effect are prone to looseness and cracking due to vibration.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A dehumidifier with a defrosting effect includes a housing and a compressor, an evaporator, a condenser, a four-way valve arranged in the housing, and an electronic control board electrically connected to the compressor and the four-way valve. Among them, it further includes a first pipeline for connecting the four-way valve and the compressor outlet, a second pipeline for connecting the four-way valve and the compressor inlet, a third pipeline for connecting the four-way valve and the evaporator, and a fourth pipeline for connecting the four-way valve and the condenser. The first pipeline, the second pipeline, the third pipeline, and the fourth pipeline are all pipelines with multiple bending parts.

[0007] In the dehumidifier with a defrosting effect, the number of bending parts in the first pipeline, the second pipeline, the third pipeline, and the fourth pipeline is at least two, and the bending directions of each bending part on the same pipeline are different.

[0008] In the dehumidifier with a defrosting effect, it further includes a bracket and pipe sleeves for fixing the first pipeline, the second pipeline, the third pipeline, and the fourth pipeline. The first pipeline, the second pipeline, the third pipeline, and the fourth pipeline are fixed on the bracket through the pipe sleeves.

[0009] In the dehumidifier with defrosting effect described above, the pipe sleeve for fixing the third pipe and the fourth pipe is a plastic pipe sleeve.

[0010] In the dehumidifier with defrosting effect described above, the diameter of the end of the third pipe connected to the evaporator is reduced.

[0011] In the dehumidifier with defrosting effect described above, it further includes a water tank arranged below the evaporator and the condenser. The water tank is provided with a water pump for draining water, and the water pump is electrically connected to the electric control board.

[0012] In the dehumidifier with defrosting effect described above, the water tank is also provided with a high water level liquid level switch and a full water level liquid level switch, and both the high water level liquid level switch and the full water level liquid level switch are electrically connected to the electric control board.

[0013] Beneficial effects:

[0014] The present utility model provides a dehumidifier with defrosting effect. By arranging the first pipe, the second pipe, the third pipe, and the fourth pipe with bending parts, the bending parts have a buffering effect, which can reduce the damage of the compressor vibration to the pipes, reduce the maintenance cost, and extend the service life. Description of the drawings

[0015] Figure 1 is the structural schematic diagram of the dehumidifier with defrosting effect provided by the present utility model Figure 1 .

[0016] Figure 2 is the structural schematic diagram of the dehumidifier Figure 2 .

[0017] Figure 3 is the structural schematic diagram of the water tank.

[0018] In the drawings, the markings are as follows: 1 - housing, 2 - compressor, 3 - evaporator, 4 - condenser, 5 - four-way valve, 6 - first pipe, 7 - second pipe, 8 - third pipe, 9 - fourth pipe, 10 - bracket, 11 - pipe sleeve, 12 - water tank, 13 - water pump, 14 - high water level liquid level switch, 15 - full water level liquid level switch. Detailed implementation manners

[0019] The present utility model provides a dehumidifier with defrosting effect. To make the purpose, technical solution and effects of the present utility model clearer and more definite, the following further describes the present utility model in detail with reference to the accompanying drawings and by way of examples. It should be understood that the specific examples described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0020] Please refer to Figure 1 , Figure 2The utility model provides a dehumidifier with defrosting effect, the dehumidifier comprises a shell 1 and a compressor 2, an evaporator 3, a condenser 4, a four-way valve 5 arranged in the shell, and an electric control board electrically connected to the compressor 2 and the four-way valve 5, and also comprises a first pipeline 6 for connecting the four-way valve 5 and the outlet of the compressor 2, a second pipeline 7 for connecting the four-way valve 5 and the inlet of the compressor 2, a third pipeline 8 for connecting the four-way valve 5 and the evaporator 3, and a fourth pipeline 9 for connecting the four-way valve 5 and the condenser 4. Through the action of the four-way valve 5, the compressor 2, the evaporator 3, the condenser 4, the four-way valve 5 and the compressor 2 can be made to be defrosted. The four-way valve 5 connects the first pipeline 6 with the third pipeline 8 and the second pipeline 7 with the fourth pipeline 9, a dehumidification air path is formed, and the compressor 2 works to dehumidify the air; when the four-way valve 5 connects the first pipeline 6 with the fourth pipeline 9 and the second pipeline 7 with the third pipeline 8, a defrost air path is formed, and the compressor 2 works, and the roles of the evaporator 3 and the condenser 4 are swapped. At this time, the evaporator 3 plays the role of the original condenser 4, and the evaporator 3 can be defrosted.

[0021] However, the aforementioned gas circuit increases in number and becomes complicated due to the addition of the four-way valve 5. When the compressor 2 is working, it will generate a large vibration, which makes the pipeline easy to loosen and crack. In addition, since the third pipeline 8 and the fourth pipeline 9 play different roles in different gas circuits, the thermal expansion and contraction requirements of the pipes are higher. In this regard, in this embodiment, the first pipeline 6, the second pipeline 7, the third pipeline 8, and the fourth pipeline 9 are all set as pipelines with multiple bends, that is, the first pipeline 6, the second pipeline 7, the third pipeline 8, and the fourth pipeline 9 are not linearly connected pipelines, but pipelines with a curved structure, which have a buffering effect, can greatly reduce the vibration of the compressor 2 on the pipeline, and can also prevent the vibration of the compressor 2 from being transmitted to the evaporator 3 and the condenser 4 through the pipeline, so as to prevent the pipeline from loosening and cracking. In addition, the third pipeline 8 and the fourth pipeline 9 with a curved portion can better adapt to the requirements of thermal expansion and contraction when the gas circuit changes, and will not crack.

[0022] It should be noted that the first pipeline 6 , the second pipeline 7 , the third pipeline 8 , and the fourth pipeline 9 are all copper pipes.

[0023] In a preferred embodiment, the first pipeline 6, the second pipeline 7, the third pipeline 8, and the fourth pipeline 9 have at least two bends, that is, the first pipeline 6, the second pipeline 7, the third pipeline 8, and the fourth pipeline 9 have at least two bow structures, and the bending direction of each bend on the same pipeline is different, so that each pipeline has sufficient buffering effect.

[0024] In order to improve the dehumidification efficiency, the diameter of the end of the third pipeline 8 connected to the evaporator 3 is reduced. Therefore, when the flow rate of the compressor 2 remains unchanged, the faster the refrigerant flows through the end pipeline, the higher the utilization rate of the refrigerant and the higher the dehumidification efficiency.

[0025] In order to stably fix the first pipeline 6, the second pipeline 7, the third pipeline 8, and the fourth pipeline 9, a bracket 10 for fixing each pipeline is further provided on the bottom inner wall of the housing 1. The first pipeline 6, the second pipeline 7, the third pipeline 8, and the fourth pipeline 9 are fixed to the bracket 10 through pipe sleeves 11, so that each pipeline can be fixed firmly.

[0026] Since the third pipeline 8 and the fourth pipeline 9 are respectively connected to the evaporator 3 and the condenser 4, the requirement for noise reduction is higher. For this reason, in order to better reduce vibration, the pipe sleeves 11 for fixing the third pipeline 8 and the third pipeline 8 are made of a plastic material with elastic properties, so that it can better eliminate vibration and reduce noise.

[0027] In addition, in order to facilitate the collection of condensed water generated by the evaporator 3 and the condenser 4, a water tank 12 is further included and is arranged below the evaporator 3 and the condenser 4. As Figure 3 shown, the water tank 12 is drained by a water pump 13. Therefore, a water pump 13 for draining water is provided in the water tank 12. The water pump 13 is electrically connected to the electric control board and can be set to a intermittent drainage mode or a regular drainage mode through the electric control board to avoid water overflow in the water tank 12.

[0028] In order to facilitate the start and stop of the water pump 13 and to prevent water from overflowing in the water tank 12, a high water level liquid level switch 14 and a full water level switch are provided in the water tank 12. Both the high water level liquid level switch 14 and the full water level switch 15 are electrically connected to the electric control board. Furthermore, it can be realized that when the water level reaches the high water level liquid level switch 14, the water pump 13 is started to work, and when the water level reaches the full water level switch 15, the compressor 2 stops the dehumidification work. In the specific implementation process, after the compressor 2 starts to work, the water pump 13 will not start immediately. Only when the water level reaches the position of the high water level liquid level switch 14, the water pump 13 will start, and the working time of the water pump 13 after starting can be set through the electric control board, which is generally related to the capacity of the water tank 12 and the power of the water pump 13, and try to make the water pump 13 drain all the water in the water tank 12 after starting; when the air humidity is relatively high, the water level in the water receiving tray may reach the full water level switch 15. At this time, the electric control board will stop the compressor 2 from working, which is equivalent to pausing the dehumidification to avoid water overflow, and the water pump 13 starts to work to drain the water in the water receiving tray.

[0029] In summary, the dehumidifier with a defrosting effect provided by the present utility model has a buffering effect by arranging the first pipeline 6, the second pipeline 7, the third pipeline 8, and the fourth pipeline 9 with bending parts, which can reduce the damage of the vibration of the compressor 2 to the pipeline, reduce the maintenance cost, and extend the service life.

[0030] It should be noted that in the description of the embodiments of the present utility model, the orientation or positional relationship indicated by the terms "inner", "outer", "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0031] In the description of the embodiments of the present utility model, it should also be noted that unless otherwise clearly specified and limited, the terms "arrange" and "connect" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0032] It can be understood that for those of ordinary skill in the art, equivalent replacements or changes can be made according to the technical solutions and concepts of the present utility model, and all such changes or replacements should fall within the protection scope of the claims attached to the present utility model.

Claims

1. A dehumidifier with a defrosting effect, comprising a housing and a compressor, an evaporator, a condenser, a four-way valve arranged in the housing, and an electric control board electrically connected to the compressor and the four-way valve, characterized in that: It also includes a first pipeline for connecting the four-way valve and the compressor outlet, a second pipeline for connecting the four-way valve and the compressor inlet, a third pipeline for connecting the four-way valve and the evaporator, and a fourth pipeline for connecting the four-way valve and the condenser. The first pipeline, the second pipeline, the third pipeline, and the fourth pipeline are all pipelines with multiple bends.

2. The dehumidifier with defrosting effect according to claim 1, characterized in that: The number of bends in the first pipeline, the second pipeline, the third pipeline, and the fourth pipeline is at least two, and the bending directions of each bend on the same pipeline are different.

3. The dehumidifier with defrosting effect according to claim 1, characterized in that: It also includes a bracket and a pipe sleeve for fixing the first pipeline, the second pipeline, the third pipeline, and the fourth pipeline. The first pipeline, the second pipeline, the third pipeline, and the fourth pipeline are fixed on the bracket through the pipe sleeve.

4. The dehumidifier with defrosting effect according to claim 3, characterized in that: The pipe sleeves used for fixing the third pipeline and the fourth pipeline are made of plastic.

5. The dehumidifier with defrosting effect according to claim 1, characterized in that: The diameter of the end of the third pipeline connected to the evaporator is reduced.

6. The dehumidifier with defrosting effect according to claim 1, characterized in that: It also includes a water tank arranged below the evaporator and the condenser. The water tank is provided with a water pump for drainage. The water pump is electrically connected to the electric control board.

7. The dehumidifier with defrosting effect according to claim 6, characterized in that: The water tank is also provided with a high water level switch and a full water level switch, and both the high water level switch and the full water level switch are electrically connected to the electric control panel.

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