Cold and warm water circulation machine with semiconductor refrigeration type temperature adjusting pad

Abstract

The utility model provides a cold and warm water circulation machine of a semiconductor refrigeration type temperature adjusting pad. The system comprises a semiconductor refrigerator set, an electric heater, a water storage tank, a heat supply pump and a cold supply pump. The electric heater, the heat supply pump and the cold supply pump are installed in the water storage tank, the water outlet end of the heat supply pump is connected with the water inlet end of the temperature adjusting pad, and the water outlet end of the cold supply pump is connected with the water inlet end of the temperature adjusting pad through a refrigeration box of the semiconductor refrigerator set. The water outlet end of the temperature adjusting pad is connected with a water return pipe of the water storage tank; the semiconductor refrigerator set is adopted to refrigerate the liquid working medium, compared with a conventional evaporator and compressor refrigeration mode, the semiconductor refrigerator set is not limited by sites, the size of the whole machine is more compact, and due to the split design of the temperature adjusting pad, the electric heater and the conductor refrigerator, the temperature adjusting pad is mute, and sleep of a user cannot be affected.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical appliances, in particular to a semiconductor refrigeration type temperature regulating pad cold and warm water circulation machine. Background Art

[0002] Contact electric cooling and heating appliances can cool in summer when the temperature is high and heat in winter when the temperature is low. They are suitable for temperature control of car mats, seat cushions, and mattresses.

[0003] The patent with the publication (announcement) number CN2471220 proposes a temperature-adjusting mattress, which can achieve cooling and heating, but it still has the following defects:

[0004] Since its cooling function is achieved through an evaporator installed on the mattress and a compressor installed on the mattress board, a special mattress and mattress board are required, which have poor portability and environmental compatibility. In addition, the evaporator and compressor will produce loud noise when in use, and the user sleeps above the noise source, affecting the user's sleeping experience. Utility Model Content

[0005] In view of this, the problem to be solved by the utility model is to provide a semiconductor refrigeration temperature regulating pad cold and warm water circulation machine.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A semiconductor refrigeration temperature regulating pad cold and warm water circulation machine, comprising: a semiconductor refrigeration unit, an electric heater, a water storage tank, a heat supply pump and a cold supply pump;

[0008] The electric heater, the heat supply pump and the cooling pump are installed in the water storage tank, the water outlet of the heat supply pump is connected to the water inlet of the temperature regulating pad, and the water outlet of the cooling pump is connected to the water inlet of the temperature regulating pad through the refrigeration box of the semiconductor refrigerator group;

[0009] The water outlet end of the temperature regulating pad is connected to the return pipe of the water storage tank.

[0010] The water outlet of the heat pump is connected to the first water inlet of the three-way valve through a heat supply pipe;

[0011] The water outlet of the cooling pump is connected to the water inlet of the refrigeration box through a connecting pipe, and the water outlet of the refrigeration box is connected to the second water inlet of the three-way valve through a cooling pipe;

[0012] The water outlet of the three-way valve is connected to the water inlet of the temperature regulating pad.

[0013] A temperature probe is also installed in the water storage tank, and the temperature probe is electrically connected to the heating pump, the cooling pump, the electric heater, and the PLC controller.

[0014] The semiconductor refrigerator group includes a semiconductor refrigerator and a heat sink;

[0015] The semiconductor refrigerator is located between the refrigeration box and the heat sink, and a plurality of heat sink fins are constructed on the end surface of the heat sink facing away from the semiconductor refrigerator.

[0016] The semiconductor refrigerator group also includes a limit frame and a heat dissipation fan in a "J" shape. The inner cavities of the two groups of limit frames are arranged facing each other. A heat dissipation plate embedding groove corresponding to the heat dissipation plate is formed in the middle position between the two groups of limit frames. The inner cavity contours of the two groups of limit frames correspond to the refrigeration box and the heat dissipation fan respectively.

[0017] A liquid injection pipe is arranged on the top of the water storage tank, and an outer cover shell around the liquid injection pipe is a sunken concave platform structure.

[0018] The liquid injection pipe is threadedly connected with a box cover.

[0019] The PLC controller is fixed on the outer cover shell.

[0020] A control method for a semiconductor refrigeration temperature regulating pad cold and warm water circulation machine comprises the following steps;

[0021] S1: Select cooling or heating mode and set the temperature threshold;

[0022] S2: When the cooling mode is selected, the cooling pump, semiconductor refrigerator, and cooling fan are started until the temperature controller probe detects that the liquid working medium in the water storage tank reaches the temperature threshold and stops;

[0023] When the heating mode is selected, the heat pump and the electric heater are started and stop when the thermostat probe detects that the liquid working medium in the water tank reaches the temperature threshold.

[0024] The refrigeration mode also includes a refrigeration maintenance mode. When the thermostat probe detects that the liquid working medium in the water tank reaches the refrigeration temperature threshold and then increases to above the refrigeration maintenance temperature threshold, the cooling pump, semiconductor refrigerator, and cooling fan are started again.

[0025] The heating mode also includes a heating maintenance mode. When the thermostat probe detects that the liquid working medium in the water tank reaches the heating temperature threshold and then drops below the heating maintenance temperature threshold, the heat pump and the electric heater are started again.

[0026] The advantages and positive effects of the utility model are:

[0027] A semiconductor refrigerator group is used to cool the liquid working medium. Compared with the conventional evaporator and compressor refrigeration methods, it is not restricted by the site and the size of the whole machine is more compact. The separate design of the temperature regulating pad, electric heater and conductor refrigerator makes the temperature regulating pad quieter and will not affect the user's sleep. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0029] In the attached picture:

[0030] Figure 1 This is a structural diagram of a semiconductor refrigeration temperature regulating pad cold and warm water circulation machine of the utility model in the first viewing angle after the outer cover shell is hidden;

[0031] Figure 2 It is an enlarged view of the heat dissipation fan of a semiconductor refrigeration temperature regulating pad cold and warm water circulation machine of the utility model after the outer cover is hidden;

[0032] Figure 3 yes Figure 2 The structural diagram after hiding the heat sink;

[0033] Figure 4 This is a structural diagram of a semiconductor refrigeration temperature regulating pad cold and warm water circulation machine of the utility model in two viewing angles after the outer cover is hidden;

[0034] Figure 5 This is the overall structural diagram of a semiconductor refrigeration type temperature regulating pad cold and warm water circulation machine of the utility model;

[0035] In the figure: semiconductor refrigerator group 1, refrigeration box 11, heat sink 12, heat fins 13, limit frame 14, heat dissipation fan 15, semiconductor refrigerator 16, water storage tank 2, heat pump 21, heat supply pipe 211, cold supply pump 22, connecting pipe 221, cold supply pipe 222, liquid injection pipe 23, box cover 24, return pipe 25, PLC controller 5, concave platform 51, support platform 7, outer cover shell 8, three-way valve 9. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0039] like Figure 1 As shown, the utility model proposes a semiconductor refrigeration temperature regulating pad cold and warm water circulation machine, comprising: a semiconductor refrigerator group 1, an electric heater, a water storage tank 2, a heat supply pump 21 and a cold supply pump 22;

[0040] The electric heater, the heat supply pump 21 and the cold supply pump 22 are installed in the water storage tank 2, which saves the space occupied by the whole machine and allows the electric heater to directly contact the liquid working medium in the water storage tank 2 over a large area to heat it;

[0041] The water outlet of the heat supply pump 21 is connected to the water inlet of the temperature regulating pad, and the water outlet of the cooling pump 22 is connected to the water inlet of the temperature regulating pad through the refrigeration box 11 of the semiconductor refrigerator group 1. The liquid working medium is cooled by the semiconductor refrigerator group 1. Compared with the conventional evaporator and compressor refrigeration method, it is not limited by the site and the volume of the whole machine is more compact.

[0042] The water outlet end of the temperature regulating pad is connected to the return pipe 25 of the water storage tank 2, so that the liquid working medium flowing through the temperature regulating pad is returned to the water storage tank 2, so as to realize the circulation flow of the liquid working medium in the temperature regulating pad.

[0043] Furthermore, in order to simplify the circulation pipeline and avoid the temperature regulating pad having multiple water inlet ends to increase the risk of leakage, the present application adopts a single water inlet design in which the heating pump 21 and the cooling pump 22 are connected to the temperature regulating pad;

[0044] Specifically, the water outlet of the heat pump 21 is connected to the first water inlet of the three-way valve 9 through the heat supply pipe 211, the water outlet of the cooling pump 22 is connected to the water inlet of the refrigeration box 11 through the connecting pipe 221, the water outlet of the refrigeration box 11 is connected to the second water inlet of the three-way valve 9 through the cooling pipe 222, and the water outlet of the three-way valve 9 is connected to the water inlet of the temperature regulating pad; a one-way valve is also provided between the three-way valve 9 and the heat supply pipe 211 and the cooling pipe 222 to prevent the liquid in the heat supply pipe 211 and the cooling pipe 222 from communicating with each other.

[0045] When heating is required, the heat pump 21 and the electric heater are started, and the liquid working medium is heated by the electric heater in the water tank 2, passes through the heat pump 21, and then passes through the three-way valve 9 to enter the temperature regulating pad from the heating pipe 211, and then returns to the water tank 2 through the return pipe 25, forming a circulation flow. In this process, as the liquid working medium continues to flow, the liquid working medium can be evenly heated and continuously heated;

[0046] When refrigeration is required, the cooling pump 22 is started, and the liquid working medium is sent into the refrigeration box 11 through the connecting pipe 221. The liquid working medium cooled by the refrigeration box 11 passes through the cooling pipe 222 and the three-way valve 9 into the temperature regulating pad, and then returns to the water storage tank 2 through the return pipe 25, forming a circulation flow. In this process, as the liquid working medium continues to flow, the liquid working medium can be evenly cooled and continuously cooled.

[0047] Specifically, a temperature probe is also installed in the water tank 2 for real-time detection of the temperature of the liquid working medium in the water tank 2. The temperature probe is electrically connected to the heating pump 21, the cooling pump 22, the electric heater, and the PLC controller 5, thereby realizing electrical control of cooling or heating.

[0048] like Figures 1 to 3 As shown, specifically, the semiconductor refrigerator group 1 includes a semiconductor refrigerator 16 and a heat sink 12;

[0049] The semiconductor refrigerator 16 is located between the refrigeration box 11 and the heat sink 12. The heat sink 12 is provided with a plurality of heat sink fins 13 on the end surface facing away from the semiconductor refrigerator 16. The heat sink fan 15 is arranged facing the heat sink fins 13.

[0050] The refrigeration end of the semiconductor refrigerator 16 in contact with the refrigeration box 11 is used to cool the liquid working medium flowing through the refrigeration box 11 . One end of the semiconductor refrigerator 16 in contact with the heat sink 12 performs active and passive combined heat dissipation through the heat dissipation fins 13 and the heat dissipation fan 15 .

[0051] Specifically, the semiconductor refrigerator group 1 also includes a limit frame 14 and a heat dissipation fan 15 in a "J" shape. The inner cavities of the two groups of the limit frames 14 are arranged facing each other, and a heat dissipation plate embedding groove corresponding to the heat dissipation plate 12 is formed in the middle position between the two groups of the limit frames 14, thereby fixing the heat dissipation plate 12 between the refrigeration box 11 and the heat dissipation plate 12. The inner cavity contours of the two groups of the limit frames 14 correspond to the refrigeration box 11 and the heat dissipation fan 15, respectively, thereby fixing the refrigeration box 11 and the heat dissipation fan 15, respectively.

[0052] like Figures 4 to 5 As shown, specifically, a liquid injection pipe 23 is configured on the top of the water storage tank 2, and the outer casing 8 around the liquid injection pipe 23 is a sunken concave platform 51 structure;

[0053] The injection tube 23 is threadedly connected to the box cover 24, and the combined height of the box cover 24 and the injection tube 23 is lower than the depth of the recess 51. The design of the recess 51 provides protection for the injection tube 23 to avoid damage to the injection tube 23 caused by external force collision.

[0054] The injection pipe 23 is threadedly connected to the box cover 24, the PLC controller 5 is fixed on the outer cover shell 8, the electric heater, the water storage tank 2, and the semiconductor refrigerator group 1 are all installed on the support platform 7, and the outer cover shell 8 is snap-connected with the support platform 7, so that the temperature regulating pad heating and cooling water circulation machine is portable.

[0055] A control method for a semiconductor refrigeration type temperature regulating pad cold and warm water circulation machine, comprising the following steps;

[0056] S1: Select cooling or heating mode and set the temperature threshold;

[0057] S2: When the cooling mode is selected, the cooling pump 22, the semiconductor refrigerator 16, and the cooling fan 15 are started until the temperature controller probe detects that the liquid working medium in the water storage tank 3 reaches the temperature threshold and stops;

[0058] The refrigeration mode also includes a refrigeration maintenance mode, when the temperature controller probe detects that the liquid working medium in the water storage tank 2 reaches the refrigeration temperature threshold and then increases to above the refrigeration maintenance temperature threshold, the cooling pump 22, the semiconductor refrigerator 16, and the cooling fan 15 are started again;

[0059] When the heating mode is selected, the heat pump 21 and the electric heater are started, and they stop when the temperature controller probe detects that the liquid working medium in the water storage tank 2 reaches the temperature threshold;

[0060] The heating mode also includes a heating maintenance mode. When the thermostat probe detects that the liquid working medium in the water tank 2 reaches the heating temperature threshold and then drops below the heating maintenance temperature threshold, the heat pump 21 and the electric heater are started again.

[0061] When the cooling mode is selected, the cooling pump 22, the semiconductor refrigerator 16, and the cooling fan 15 are started until the temperature control probe detects that the liquid working medium in the water storage tank 2 reaches the temperature threshold. The semiconductor refrigerator 16 stops working. The cooling mode also includes a cooling maintenance mode. When the temperature control probe detects that the liquid working medium in the water storage tank 2 is higher than the set temperature threshold, the semiconductor refrigerator 16 is started again;

[0062] When the heating mode is selected, the heat pump 21 and the electric heater are started until the temperature controller probe detects that the liquid working medium in the water storage tank 2 reaches the temperature threshold, and then the electric heater stops working. The heating mode also includes a heating maintenance mode. When the temperature controller probe detects that the liquid working medium in the water storage tank 2 drops below the set temperature value, the electric heater is started again.

[0063] Specifically, the temperature control range in the present application is within the range of 20 degrees to 45 degrees above zero.

[0064] The working principle and working process of the utility model are as follows:

[0065] During refrigeration, the cooling pump 22, the semiconductor refrigerator 16, and the cooling fan 15 are started, and the liquid working medium is sent to the refrigeration box 11 through the connecting pipe 221. The semiconductor refrigerator 16 continuously conducts low temperature to the refrigeration box 11. The liquid working medium cooled by the refrigeration box 11 passes through the cooling pipe 222 and the three-way valve 9 into the temperature regulating pad, and then returns to the water storage tank 2 through the return pipe 25, forming a circulation flow, and evenly transferring the cold energy until the temperature probe detects that the liquid working medium in the water storage tank 2 reaches the temperature threshold and stops;

[0066] During heating, the heat pump 21 and the electric heater are started to heat the liquid working medium in the water tank 2. After being heated by the electric heater in the water tank 2, the liquid working medium passes through the heat pump 21, the heating pipe 211, and the three-way valve 9 into the temperature regulating pad, and then returns to the water tank 2 through the return pipe 25, forming a circulating flow to evenly transfer heat energy until the temperature probe detects that the liquid working medium in the water tank 2 reaches the temperature threshold and stops.

[0067] The above embodiments of the utility model are described in detail, but the above contents are only preferred embodiments of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of the utility model should still fall within the scope of this patent.

Claims

1. A semiconductor refrigeration temperature regulating pad cold and warm water circulation machine, characterized in that: It comprises: a semiconductor refrigerator group (1), an electric heater, a water storage tank (2), a heat supply pump (21) and a cold supply pump (22); The electric heater, the heat supply pump (21) and the cooling pump (22) are installed in the water storage tank (2); the water outlet of the heat supply pump (21) is connected to the water inlet of the temperature regulating pad, and the water outlet of the cooling pump (22) is connected to the water inlet of the temperature regulating pad via the cooling box (11) of the semiconductor refrigerator group (1); The water outlet end of the temperature regulating pad is connected to the water return pipe (25) of the water storage tank (2).

2. A semiconductor refrigeration temperature regulating pad cold and warm water circulation machine according to claim 1, characterized in that: The water outlet end of the heat supply pump (21) is connected to the first water inlet end of the three-way valve (9) through a heat supply pipe (211); The water outlet of the cooling pump (22) is connected to the water inlet of the refrigeration box (11) via a connecting pipe (221), and the water outlet of the refrigeration box (11) is connected to the second water inlet of the three-way valve (9) via a cooling pipe (222); The water outlet end of the three-way valve (9) is connected to the water inlet end of the temperature regulating pad.

3. A semiconductor refrigeration temperature regulating pad cold and warm water circulation machine according to claim 2, characterized in that: A temperature probe is also installed in the water storage tank (2), and the temperature probe is electrically connected to the heating pump (21), the cooling pump (22), the electric heater, and the PLC controller (5).

4. A semiconductor refrigeration temperature regulating pad cold and warm water circulation machine according to claim 3, characterized in that: The semiconductor refrigerator group (1) comprises a semiconductor refrigerator (16) and a heat sink (12); The semiconductor refrigerator (16) is located between the refrigeration box (11) and the heat sink (12); a plurality of heat sink fins (13) are constructed on the end surface of the heat sink (12) facing away from the semiconductor refrigerator (16).

5. A semiconductor refrigeration temperature regulating pad cold and warm water circulation machine according to claim 4, characterized in that: The semiconductor refrigerator group (1) also includes a limiting frame (14) and a heat dissipation fan (15) in a "J"-shaped structure. The inner cavities of the two groups of limiting frames (14) are arranged facing each other. A heat dissipation plate embedding groove corresponding to the heat dissipation plate (12) is formed in the middle position between the two groups of limiting frames (14). The inner cavity contours of the two groups of limiting frames (14) correspond to the refrigeration box (11) and the heat dissipation fan (15), respectively.

6. A semiconductor refrigeration temperature regulating pad cold and warm water circulation machine according to claim 5, characterized in that: The top of the water storage tank (2) is provided with a liquid injection pipe (23), and the outer casing (8) around the liquid injection pipe (23) is a sunken concave platform (51) structure.

7. A semiconductor refrigeration temperature regulating pad cold and warm water circulation machine according to claim 6, characterized in that: The liquid injection pipe (23) is threadedly connected to a box cover (24), and the PLC controller (5) is fixed on the outer cover shell (8).

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