Refrigeration unit for a bathtub and bathtub

Abstract

The application relates to a refrigerating unit for a bathtub and the bathtub, which comprises a compressor, a four-way valve, a first heat exchanger, a second heat exchanger, a third heat exchanger, a refrigerant storage tank, a first expansion valve, a three-way pipe A, a three-way pipe B and a second expansion valve, the four-way valve is provided with an input port, a first connecting port, a second connecting port, a third connecting port and a water storage bin, the first heat exchanger is arranged in the water storage bin, both ends of the first heat exchanger extend out of the water storage bin, the water storage bin is provided with a water inlet and a water outlet connected with the bathtub body respectively, and a circulating pump is arranged on the water inlet path or the water outlet path of the water storage bin. The refrigerating unit has the functions of quick refrigeration and hot water, is used for providing the user with the use selection of cold water bath and hot water bath, and can cooperate with the second heat exchanger to perform ice making treatment on the bathtub; after ice making, the ice can be separated to form floating ice floating on the water surface, and the user can use the ice bath.

Description

Technical Field

[0001] This utility model relates to the field of bathtub refrigeration, and in particular to a refrigeration unit for bathtubs and a bathtub. Background Technology

[0002] To cater to user needs, most bathtubs on the market today are equipped with cooling systems. These systems can heat or cool the water, allowing users to enjoy both hot and cold baths. However, for sports enthusiasts and those seeking relief from inflammation and pain, conventional cold baths are insufficient, and current bathtub cooling systems do not offer ice-making capabilities.

[0003] Therefore, it is necessary to make further improvements. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a refrigeration unit and a bathtub for use in bathtubs. This refrigeration unit can achieve ice formation inside the bathtub, meeting the needs of some people for ice baths.

[0005] This application proposes a refrigeration unit for a bathtub, which includes a compressor, a four-way valve, a first heat exchanger, a second heat exchanger, a third heat exchanger, a refrigerant storage tank, a first expansion valve, a three-way pipe A, a three-way pipe B, and a second expansion valve. The four-way valve has an inlet, a first connection port, a second connection port, and a third connection port.

[0006] The compressor's output end is connected to the input port. The first connection port is connected to the first end of the three-way pipe B. The second end of the three-way pipe B is connected to the first heat exchanger. The first heat exchanger is connected to the first expansion valve. The first expansion valve is connected to the first end of the three-way pipe A. The second end of the three-way pipe A is connected to the first interface of the refrigerant receiver tank. The third interface of the refrigerant receiver tank is connected to the third heat exchanger. The third heat exchanger is connected to the third connection port. The second connection port is connected to the second interface of the refrigerant receiver tank. The fourth interface of the refrigerant receiver tank is connected to the compressor's input end.

[0007] The third end of the tee pipe B is connected to the second heat exchanger, the second heat exchanger is connected to the second expansion valve, and the second expansion valve is connected to the third end of the tee pipe A.

[0008] It also includes a water storage tank, with a first heat exchanger installed inside the water storage tank. Both ends of the first heat exchanger extend out of the water storage tank, which is equipped with an inlet and an outlet.

[0009] In one or more embodiments, the water storage tank is equipped with a water flow sensor, which is used to detect whether the water flow through the water storage tank is stable. When the water flow is unstable, the water flow sensor instructs the compressor to stop working.

[0010] In one or more embodiments, a first refrigerant filter is provided between the first heat exchanger and the first expansion valve.

[0011] In one or more embodiments, a second refrigerant filter is provided between the second heat exchanger and the second expansion valve.

[0012] In one or more embodiments, a third refrigerant filter is provided between the three-way pipe A and the refrigerant storage tank.

[0013] This application also provides a bathtub, including an outer shell and a bathtub body. The outer shell is equipped with the aforementioned refrigeration unit. The second heat exchanger is located on the bottom wall and / or side wall of the bathtub body. The inlet and outlet of the water storage tank are respectively connected to the bathtub body. A circulation pump is provided on the inlet or outlet path of the water storage tank.

[0014] The beneficial effects of this utility model are: the refrigeration unit has the function of quickly cooling water and hot water, providing users with the choice of cold water bath and hot water bath; and it can work with the second heat exchanger to make ice in the bathtub. After ice making, the ice can be removed to form floating ice on the water surface for users to use for ice bath. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the refrigeration unit of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the bathtub of this utility model. Detailed Implementation

[0017] To enhance understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.

[0018] Please refer to the appendix. Figure 1-2 This utility model provides a refrigeration unit for bathtubs, which includes a compressor 1, a four-way valve 2, a first heat exchanger 3, a second heat exchanger 4, a third heat exchanger 5, a refrigerant storage tank 6, a first expansion valve 7, a three-way pipe A8, a three-way pipe B9, and a second expansion valve 10. The four-way valve 2 has an inlet 21, a first connection port 22, a second connection port 23, and a third connection port 24. The first expansion valve 7 and the second expansion valve 10 are preferably electronic expansion valves.

[0019] The output end of compressor 1 is connected to input port 21. The first connection port 22 is connected to the first end of tee pipe B9. The second end of tee pipe B9 is connected to the first heat exchanger 3. The first heat exchanger 3 is connected to the first expansion valve 7. The first expansion valve 7 is connected to the first end of tee pipe A8. The second end of tee pipe A8 is connected to the first interface 61 of refrigerant storage tank 6. The third interface 63 of refrigerant storage tank 6 is connected to the third heat exchanger 5. The third heat exchanger 5 is connected to the third connection port 24. The second connection port 23 is connected to the second interface 62 of refrigerant storage tank 6. The fourth interface 64 of refrigerant storage tank 6 is connected to the input end of compressor 1.

[0020] The third end of the tee pipe B9 is connected to the second heat exchanger 4, the second heat exchanger 4 is connected to the second expansion valve 10, and the second expansion valve 10 is connected to the third end of the tee pipe A8.

[0021] It also includes a water storage tank 11, with a first heat exchanger 3 located inside the water storage tank 11. Both ends of the first heat exchanger 3 extend out of the water storage tank 11, and the water storage tank 11 is provided with an inlet and an outlet.

[0022] The water storage tank 11 is equipped with a water flow sensor 12, which is used to detect whether the water flow through the water storage tank 11 is stable. When the water flow is unstable, the water flow sensor 12 commands the compressor 1 to stop working.

[0023] A first refrigerant filter 13 is provided between the first heat exchanger 3 and the first expansion valve 7, a second refrigerant filter 14 is provided between the second heat exchanger 4 and the second expansion valve 10, and a third refrigerant filter 15 is provided between the three-way pipe A8 and the refrigerant storage tank 6. The first refrigerant filter 13, the second refrigerant filter 14 and the third refrigerant filter 14 can ensure that the refrigerant passing through the first expansion valve 7 and the second expansion valve 10 is clean, and ensure that the first expansion valve 7 and the second expansion valve 10 are not blocked and have a long service life.

[0024] This application also provides a bathtub, including an outer shell 16 and a bathtub body 17. The outer shell 16 is provided with the above-mentioned refrigeration unit. The second heat exchanger 4 is provided on the bottom wall and / or side wall of the bathtub body 17. The inlet and outlet of the water storage tank 11 are respectively connected to the bathtub body 17. A circulation pump is provided on the inlet or outlet path of the water storage tank.

[0025] When using a hot water bath, the refrigerant from compressor 1 passes sequentially through four-way valve 2, first connection port 22, three-way pipe B9, first heat exchanger 3, first expansion valve 7, three-way pipe A8, refrigerant storage tank 6, third heat exchanger 5, third connection port 24, second connection port 23, and back to compressor 1. During this process, the first heat exchanger 3 acts as a condenser, and the water in the bathtub body 17 circulates through the water storage tank 11 and is heated by the first heat exchanger 3, thus making the water in the bathtub body 17 hot.

[0026] When using a cold water bath, the refrigerant from compressor 1 passes sequentially through four-way valve 2, third connection port 24, third heat exchanger 5, refrigerant storage tank 6, three-way pipe A8, first expansion valve 7, first heat exchanger 3, three-way pipe B9, first connection port 22, second connection port 23, refrigerant storage tank 6, and then returns to compressor 1. During this process, the first heat exchanger 3 acts as an evaporator. The water in the bathtub body 17 circulates through the water storage tank 11 and is cooled by the first heat exchanger 3, thus lowering the water temperature in the bathtub body 17.

[0027] When using an ice water bath, first lower the water temperature of the bathtub body 17 to the preset value through the aforementioned cold water bath steps. Then, close the first expansion valve 7 and open the second expansion valve 10. At this time, the refrigerant from the compressor 1 passes sequentially through the four-way valve 2, the third connection port 24, the third heat exchanger 5, the refrigerant storage tank 6, the three-way pipe A8, the second expansion valve 10, the second heat exchanger 4, the three-way pipe B9, the first connection port 22, the second connection port 23, and the refrigerant storage tank 6 before returning to the compressor 1. During this process, the second heat exchanger 4 acts as an evaporator. Since the second evaporator is located on the bottom wall and / or side wall of the bathtub body 17, it is in direct contact with the bathtub body and can quickly cool the bathtub body to below zero degrees Celsius, causing the inner wall of the bathtub body 17 to gradually freeze. After freezing for the preset time... When the compressor switches the refrigerant direction, the refrigerant is output from the compressor 1 and passes through the four-way valve 2, the first connection port 22, the three-way pipe B9, the second heat exchanger 4, the second expansion valve 10, the three-way pipe A8, the refrigerant receiver 6, the third heat exchanger 5, the third connection port 24, the second connection port 23, and the refrigerant receiver 6 before returning to the compressor. During this process, the second heat exchanger 4 acts as a condenser, directly heating the bathtub body 17, causing the ice that has condensed on the inner wall of the bathtub body 17 to fall off and float on the surface of the water in the bathtub, forming an ice-water mixture for the user to use for an ice bath.

[0028] The above description is only a preferred embodiment of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. All equivalent modifications or changes made by those skilled in the art based on the content disclosed in the present utility model should be included in the protection scope recorded in the claims.

Claims

1. A refrigeration unit for a bathtub, characterized in that: Includes a compressor (1), a four-way valve (2), a first heat exchanger (3), a second heat exchanger (4), a third heat exchanger (5), a refrigerant storage tank (6), a first expansion valve (7), a three-way pipe A (8), a three-way pipe B (9), and a second expansion valve (10). The four-way valve (2) has an inlet (21), a first connection port (22), a second connection port (23), and a third connection port (24). The output end of the compressor (1) is connected to the input port (21), the first connection port (22) is connected to the first end of the three-way pipe B (9), the second end of the three-way pipe B (9) is connected to the first heat exchanger (3), the first heat exchanger (3) is connected to the first expansion valve (7), the first expansion valve (7) is connected to the first end of the three-way pipe A (8), the second end of the three-way pipe A (8) is connected to the first interface (61) of the refrigerant storage tank (6), the third interface (63) of the refrigerant storage tank (6) is connected to the third heat exchanger (5), the third heat exchanger (5) is connected to the third connection port (24), the second connection port (23) is connected to the second interface (62) of the refrigerant storage tank (6), and the fourth interface (64) of the refrigerant storage tank (6) is connected to the input end of the compressor (1). The third end of the three-way pipe B (9) is connected to the second heat exchanger (4), the second heat exchanger (4) is connected to the second expansion valve (10), and the second expansion valve (10) is connected to the third end of the three-way pipe A (8); It also includes a water storage tank (11), a first heat exchanger (3) is installed inside the water storage tank (11), and the two ends of the first heat exchanger (3) extend out of the water storage tank (11). The water storage tank (11) is provided with an inlet and an outlet.

2. A refrigeration unit for a bathtub according to claim 1, characterized in that: The water storage tank (11) is equipped with a water flow sensor (12). The water flow sensor (12) is used to detect whether the water flow through the water storage tank (11) is stable. When the water flow is unstable, the water flow sensor (12) instructs the compressor (1) to stop working.

3. A refrigeration unit for a bathtub according to claim 1, characterized in that: A first refrigerant filter (13) is provided between the first heat exchanger (3) and the first expansion valve (7).

4. A refrigeration unit for a bathtub according to claim 1, characterized in that: A second refrigerant filter (14) is provided between the second heat exchanger (4) and the second expansion valve (10).

5. A refrigeration unit for a bathtub according to claim 1, characterized in that: A third refrigerant filter (15) is provided between the three-way pipe A (8) and the refrigerant storage tank (6).

6. A bathtub, comprising an outer shell (16) and a bathtub body (17), characterized in that: The outer shell (16) is provided with a refrigeration unit as described in any one of claims 1-5, the second heat exchanger (4) is provided on the bottom wall and / or side wall of the bathtub body (17), the inlet and outlet of the water storage tank (11) are respectively connected to the bathtub body (17), and a circulation pump is provided on the inlet or outlet path of the water storage tank.

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