Anti-freezing protection ice bath machine

Abstract

The utility model discloses an ice bath machine with an anti-freezing protection function. The ice bath machine comprises a bathtub, an air energy ice bath machine, a circulating pump, a filter and a control panel, a water storage cavity is formed in the middle of the bathtub, an opening is formed in the upper end of the bathtub, and the water storage cavity is used for containing bathing water. And the air energy ice bath machine, the circulating pump and the filter are fixedly arranged in the built-in mounting cavity. The air energy ice bath machine is connected with the bathtub water inlet through a water outlet pipe; the bathtub reflux inlet is connected with the reflux inlet of the air energy ice bath machine through a reflux pipe; a circulating pump and a filter are arranged at the middle section of the return pipe. The air energy ice-bath machine refrigerates water, the water is conveyed into the water storage cavity of the bathtub through the water outlet pipe, and the water is conveyed into the air energy ice-bath machine through the circulating pump and the return pipe so that the water can be continuously and circularly refrigerated. The ice bath machine with the anti-freezing protection function is simple in structural design, convenient to assemble and stable in operation; when low-temperature water of 2 DEG C is prepared, a heat exchanger of the ice bath machine can be effectively prevented from being frozen and exploded, and the service life is long.

Description

Technical Field

[0001] The utility model relates to the technical field of ice bath machines, in particular to an ice bath machine with antifreeze protection. Background Art

[0002] With the improvement of living standards, people are exercising more frequently. Ice baths can be used to treat lactic acid produced in the body by using 2-12℃ water or direct ice compresses. This can reduce muscle inflammation, swelling, and pain, clear accumulated lactic acid in the body, stimulate the central nervous system, and promote metabolism. This energy-saving equipment is becoming more and more popular in the market.

[0003] Due to the application scenario, the ice bath machine needs to produce low-temperature water of 2 degrees, and the refrigerant in the water-side heat exchanger needs a lower temperature to achieve the effect of removing the heat in the water, so the temperature of the refrigerant needs to reach below 0 degrees or even lower. In addition, this type of equipment needs to be operated in conjunction with a complete set of filtering devices and water pumps. After long-term operation, the filter element in the filter will inevitably become clogged. In this case, the water resistance in the water channel will increase, and then the water flow of the water pump will decrease. This will also cause the temperature of the refrigerant to drop. In severe cases, refrigerant with a temperature of more than ten degrees minus will appear in the water-side heat exchanger. When the refrigerant with a temperature of more than ten degrees minus comes into contact with water, it is easy for the water to freeze. The water heat exchanger is a nearly closed space, and the water will expand when it freezes, which will cause the water-side heat exchanger to freeze and explode. Therefore, the need to prevent the heat exchanger from freezing and exploding becomes very important. Utility Model Content

[0004] The utility model aims to provide an ice bath machine with antifreeze protection, which has simple structural design, convenient assembly and stable operation, and can effectively prevent the heat exchanger from freezing and exploding.

[0005] In order to solve the above technical problems, the technical solution of the utility model is:

[0006] An ice bath machine for antifreeze protection, comprising a bathtub, an air energy ice bath machine, a circulation pump, a filter, and a control panel;

[0007] The bathtub is a shell with a water storage cavity in the middle and an opening at the upper end. The water storage cavity is used to hold bathing water and is used for a person to lie down or take a bath.

[0008] A built-in installation cavity is also provided in the middle of the bathtub; the air energy ice bath machine, the circulation pump and the filter are fixedly arranged in the built-in installation cavity.

[0009] The air energy ice bath machine is connected to the water inlet of the bathtub through a water outlet pipe; the reflux port of the bathtub is connected to the reflux port of the air energy ice bath machine through a reflux pipe; a filter and a circulation pump are arranged in the middle section of the reflux pipe. The air energy ice bath machine cools the water body and transports it to the water storage chamber of the bathtub through the water outlet pipe. The low-temperature water in the water storage chamber is used for ice bathing. The water in the water storage chamber passes through the filter and then is transported to the air energy ice bath machine through the reflux pipe by the circulation pump to refrigerate the water body in a continuous cycle. The filter can filter the stains in the water body to prevent the stains from entering the circulation pump and the air energy ice bath machine.

[0010] The air energy ice bath machine comprises a compressor, a four-way reversing valve, a water side heat exchanger, an electronic expansion valve (throttling element), an air side heat exchanger, a forced convection fan, and a temperature sensor.

[0011] The output end of the compressor is connected to the output channel of the four-way reversing valve, the air side heat exchanger, the electronic expansion valve, and the output channel of the water side heat exchanger in sequence through an output pipeline. The input end of the compressor is connected to the input channel of the four-way reversing valve and the input channel of the water side heat exchanger in sequence through an input pipeline.

[0012] A temperature sensor is provided on the output pipeline between the electronic expansion valve and the water-side heat exchanger;

[0013] The forced convection fan is arranged on one side of the air side heat exchanger;

[0014] The compressor, the temperature sensor and the control panel are electrically connected.

[0015] Specifically, the two ends of the water outlet pipe are respectively connected to the water side heat exchanger and the water storage chamber of the bathtub; the two ends of the return pipe are respectively connected to the water side heat exchanger and the water storage chamber of the bathtub, and a circulating pump and a filter are also provided in the middle section.

[0016] The specific antifreeze protection plan is:

[0017] A temperature sensor is added to the refrigerant pipe before entering the water-side heat exchanger. By detecting the temperature on this refrigerant pipe, it is determined whether there is ice in the water heat exchanger. After a long period of operation, the filter element in the filter is blocked by more impurities, and the water resistance will increase, thereby reducing the water flow through the water heat exchanger, resulting in a decrease in the temperature of the refrigerant flowing through the water heat exchanger. A temperature sensor is added to the refrigerant inlet pipe of the water heat exchanger to detect the refrigerant temperature, and the electrical signal is transmitted to the control board to determine whether it is frozen and whether to perform de-icing. When it is determined that the de-icing conditions are met, the unit compressor is turned off and the production of low-temperature refrigerant is stopped. The water pump continues to run, and water above 0 degrees is circulated to remove ice attached to the heat exchanger, thereby achieving the de-icing effect and avoiding the risk of the heat exchanger freezing and bursting. The specific control logic is as follows:

[0018] 1.1 Conditions for entering defrosting:

[0019] Condition 1: The temperature detected by the temperature sensor is ≤ parameter H1 (this value can be set) and lasts for more than 3 minutes.

[0020] Condition 2: The cumulative refrigeration operation time of the compressor is ≥ H2 min (this value can be set).

[0021] When the unit is running in cooling mode, if the above two conditions are met at the same time, the unit is allowed to enter defrosting mode.

[0022] 1.2 Conditions for exiting defrosting:

[0023] The cumulative compressor shutdown time is 3 minutes.

[0024] 1.3 De-icing action:

[0025] 1.3.1 When the de-icing conditions are met, perform the following actions:

[0026] The compressor stops running for 3 minutes;

[0027] 1.3.2 When the defrosting exit conditions are met, perform the following actions:

[0028] The expansion valve returns to its initial opening;

[0029] The compressor restarts;

[0030] The accumulated running time of the compressor is reset and the timing is restarted.

[0031] 1.3.3 Abnormal termination of de-icing.

[0032] If the unit is shut down during the defrosting period, it will stop running immediately. After restarting, the unit can be started again after 3 minutes according to the normal startup sequence.

[0033] When a fault protection shutdown occurs during defrosting, the unit immediately exits defrosting and stops running.

[0034] Optionally, the bathtub includes an upper cover, an outer shell, and a base; the base is horizontally arranged and connected to the outer shell, and the upper cover is arranged on the outer shell and the base.

[0035] Brief description of the working principle of the ice bath function of this application:

[0036] The high-temperature and high-pressure gaseous refrigerant is discharged by the compressor, and then transmitted to the air-side heat exchanger through the four-way reversing valve for forced convection cooling by the fan. The refrigerant becomes a liquid refrigerant at room temperature and high pressure, and then is reduced in pressure and temperature by the electronic expansion valve to become a low-temperature and low-pressure gas-liquid two-phase refrigerant. It then passes through the water-side heat exchanger to absorb heat and produce cold water, and then returns to the compressor through the four-way reversing valve, and the reciprocating cycle achieves the effect of producing cold water. At the same time, the water in the water inlet pipe of the air-side heat exchanger passes through the water-side heat exchanger for heat exchange, and the water is cooled and cooled, and then returns to the bathtub through the water inlet pipe. The water at the bottom of the bathtub water storage chamber passes through the circulation pump and is connected to the filter through the return pipe, forming a cycle, achieving the effect of continuously cooling or maintaining a constant temperature for the bathtub.

[0037] Beneficial effects of the utility model:

[0038] Its structural design is simple, easy to assemble and stable in operation;

[0039] When preparing low-temperature water of 2 degrees, it can effectively prevent the heat exchanger of the ice bath machine from freezing and explosion, and has a long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 This is a schematic structural diagram of an ice bath machine for antifreeze protection of the utility model;

[0041] Figure 2 This is a schematic diagram of the structure of an ice bath machine for antifreeze protection of the utility model (after omitting part of the outer shell);

[0042] Figure 3 A top view of an ice bath machine for antifreeze protection according to the utility model;

[0043] Figure 4 for Figure 3 Sectional view in the AA direction;

[0044] Figure 5 A schematic diagram of the refrigerant flow direction of an ice bath machine of the utility model during the ice bath function. DETAILED DESCRIPTION

[0045] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each implementation method of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0046] like Figure 1-5 As shown, an ice bath machine for antifreeze protection includes a bathtub 12, an air energy ice bath machine 9, a circulation pump 11, a filter 10, a control panel 7, and an air side heat exchanger 5;

[0047] The bathtub 12 is a shell with a water storage chamber 121 in the middle and an opening at the upper end. The water storage chamber 121 is used to hold bathing water and is used for a person to lie down and take a bath.

[0048] The bathtub 12 is also provided with a built-in installation cavity 122 in the middle thereof; the air-side heat exchanger 5 , the circulation pump 11 , and the filter 10 are fixedly arranged in the built-in installation cavity 122 .

[0049] The bathtub 12 includes a water inlet, a drain outlet, and a reflux outlet;

[0050] The air energy ice bath machine 9 is connected to the water inlet of the bathtub 12 through the water outlet pipe 91; the return port of the bathtub 12 is connected to the return port of the air side heat exchanger 5 through the return pipe 92; the middle section of the return pipe is provided with a filter 10 and a circulation pump 11. The air energy ice bath machine 9 cools the water body and transports it to the water storage chamber 121 of the bathtub 12 through the water outlet pipe. The low-temperature water in the water storage chamber 121 is used for ice bathing. The water in the water storage chamber 121 passes through the filter 10, and then the circulation pump 11 transports the water body through the return pipe to the air energy ice bath machine 9 to continuously circulate and cool the water body. The filter 10 can filter the stains in the water body to prevent the stains from entering the circulation pump 11 and the air energy ice bath machine 9.

[0051] The air energy ice bath machine 9 comprises a compressor 1 , a four-way reversing valve 2 , a water side heat exchanger 3 , an electronic expansion valve 4 (throttling component), an air side heat exchanger 5 , a forced convection fan 6 , and a temperature sensor 8 .

[0052] The output end of the compressor 1 is connected to the output channel of the four-way reversing valve 2, the air-side heat exchanger 5, the electronic expansion valve 4, and the output channel of the water-side heat exchanger 3 in sequence through the output pipeline 13. The input end of the compressor 1 is connected to the input channel of the four-way reversing valve 2 and the input channel of the water-side heat exchanger 3 in sequence through the input pipeline.

[0053] Specifically, both ends of the water outlet pipe are respectively connected to the water side heat exchanger 3 and the water storage chamber 121 of the bathtub 12; both ends of the return pipe are respectively connected to the water side heat exchanger 3 and the water storage chamber 121 of the bathtub 12, and a circulating pump 11 and a filter 10 are also provided in the middle section.

[0054] The specific antifreeze protection plan is:

[0055] A temperature sensor 8 is added to the refrigerant pipe (output pipe 13) before entering the water-side heat exchanger 3. By detecting the pressure on this refrigerant pipe, it is determined whether ice has occurred in the water heat exchanger. After a long period of operation, the filter element in the filter 10 is clogged with more impurities, and the water channel resistance will increase, thereby reducing the water flow through the water heat exchanger, resulting in a decrease in the temperature of the refrigerant flowing through the water heat exchanger. A temperature sensor 8 is added to the refrigerant inlet pipe of the water heat exchanger to detect the refrigerant temperature, and the electrical signal is transmitted to the control board to determine whether ice has occurred and whether to perform de-icing. When it is determined that the de-icing conditions are met, the unit compressor 1 is turned off and the production of low-temperature refrigerant is stopped. The water pump continues to run, and water above 0 degrees is circulated to remove ice attached to the heat exchanger, thereby achieving the de-icing effect and avoiding the risk of the heat exchanger freezing and bursting. The specific control logic is as follows:

[0056] 1.1 Conditions for entering defrosting:

[0057] Condition 1: The temperature detected by the temperature sensor 8 is ≤ parameter H1 (this value can be set) and lasts for more than 3 minutes.

[0058] Condition 2: The accumulated refrigeration operation time of compressor 1 is ≥ H2 min (this value can be set).

[0059] When the unit is running in cooling mode, if the above two conditions are met at the same time, the unit is allowed to enter defrosting mode.

[0060] 1.2 Conditions for exiting defrosting:

[0061] The total compressor 1 is shut down for 3 minutes.

[0062] 1.3 De-icing action:

[0063] 1.3.1 When the de-icing conditions are met, perform the following actions:

[0064] Compressor 1 stops running for 3 minutes;

[0065] 1.3.2 When the defrosting exit conditions are met, perform the following actions:

[0066] The expansion valve returns to its initial opening;

[0067] Compressor 1 restarts;

[0068] The accumulated running time of compressor 1 is reset and the timing is restarted.

[0069] 1.3.3 Abnormal termination of de-icing.

[0070] If the unit is shut down during the defrosting period, it will stop running immediately. After restarting, the unit can be started again after 3 minutes according to the normal startup sequence.

[0071] When a fault protection shutdown occurs during defrosting, the unit immediately exits defrosting and stops running.

[0072] Optionally, the bathtub 12 includes an upper cover 123, an outer shell 124, and a base 125; the base 125 is horizontally arranged, and the outer shell 124 is connected thereto, and the upper cover 123 is arranged on the outer shell 124 and the base 125. A headrest 126 is also provided on the top edge of the water storage chamber 121.

[0073] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. An ice bath machine for antifreeze protection, characterized in that: Including bathtub, air energy ice bath machine, circulation pump, filter, control panel, air side heat exchanger; The bathtub is a shell with a water storage cavity in the middle and an opening at the upper end, wherein the water storage cavity is used to hold bathing water; a built-in installation cavity is also provided in the middle of the bathtub; The air-side heat exchanger, circulation pump and filter are fixedly arranged in the built-in installation cavity; The bathtub comprises a water inlet, a drain outlet, and a return outlet; The air energy ice bath machine is connected to the water inlet of the bathtub through a water outlet pipe; the reflux port of the bathtub is connected to the reflux port of the air energy ice bath machine through a reflux pipe; a circulating pump and a filter are provided in the middle section of the reflux pipe; The air energy ice bath machine includes a compressor, a four-way reversing valve, a water side heat exchanger, an electronic expansion valve, an air side heat exchanger, a temperature sensor, a forced convection fan, and a refrigerant pipe; The output end of the compressor is connected in sequence to the output channel of the four-way reversing valve, the air side heat exchanger, the electronic expansion valve, and the output channel of the water side heat exchanger through an output pipeline; The input end of the compressor is connected to the input channel of the four-way reversing valve and the input channel of the water-side heat exchanger in sequence through an input pipeline; A temperature sensor is provided on the output pipeline between the electronic expansion valve and the water-side heat exchanger; The forced convection fan is arranged on one side of the air side heat exchanger; The compressor, the temperature sensor and the control panel are electrically connected.

2. The ice bath machine for antifreeze protection according to claim 1, characterized in that: The two ends of the water outlet pipe are respectively connected to the water side heat exchanger and the water storage chamber of the bathtub; the two ends of the return pipe are respectively connected to the water side heat exchanger and the water storage chamber of the bathtub, and a circulation pump and a filter are also provided in the middle section.

3. The ice bath machine for antifreeze protection according to claim 2, characterized in that: The bathtub comprises an upper cover, an outer shell and a base; the base is arranged horizontally and is connected with the outer shell, and the upper cover is arranged on the outer shell and the base.

4. The ice bath machine for antifreeze protection according to claim 3, characterized in that: A headrest is also provided on the top edge of the water storage chamber.

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