Refrigerating and heating system

Abstract

The utility model provides a refrigerating and heating system. The refrigerating and heating system comprises a solid elastic clamping refrigerating and heating generator, a driver, a heating control three-way valve, a refrigerating control three-way valve, a refrigerating pipeline, a heating pipeline, a hot water pump, a cold water pump, a cold exchanger and a heat exchanger. One side of the solid elastic clamping refrigerating and heating generator forms a heat circulation channel with the hot water pump, the heat exchanger and the heating pipeline through a heating control three-way valve, and the other side of the solid elastic clamping refrigerating and heating generator forms a cold circulation channel with the cold water pump, the cold exchanger and the refrigerating pipeline through a refrigerating control three-way valve. The heating part and the refrigerating part are separated, so that heating and refrigerating are relatively independent, the condition of cold and heat neutralization is effectively avoided, and the refrigerating and heating efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of refrigeration and heating technology, and in particular to a refrigeration and heating system. Background Technology

[0002] The development of space cooling and heating technology is crucial for maintaining a high quality of life in modern times. Temperature control in space is often achieved through gas compression refrigerators. However, the refrigerants used in these refrigerators (such as chlorine- or bromine-containing refrigerants) are toxic and are released into the environment in large quantities, causing a sharp decline in atmospheric ozone levels and irreversible damage to the atmosphere. Spring-loaded solid-state cooling and heating technology induces a phase change in spring-loaded materials (hereinafter referred to as "spring-loaded materials") through mechanical deformation, thereby releasing and absorbing latent heat to regulate the temperature of the target object. Its high efficiency and environmentally friendly characteristics have led to its widespread application.

[0003] In existing technologies, since the cooling and heating of the spring card material are mutually dependent, it is easy for the cooling and heating to neutralize each other, resulting in low cooling and heating efficiency. Consequently, the amount of heat or cold generated is too small to be practically applied. Utility Model Content

[0004] This utility model provides a cooling and heating system to solve the problem in the prior art where the cooling and heating of spring-loaded materials results in the neutralization of cold and heat, which affects the cooling and heating efficiency.

[0005] In a first aspect, the present invention provides a refrigeration and heating system, comprising: a solid-state spring-loaded refrigeration and heating generator, a driver, a heating control three-way valve, a refrigeration control three-way valve, a refrigeration pipeline, a heating pipeline, a hot water pump, a cold water pump, a cold exchanger, and a heat exchanger.

[0006] The first end of the heating control three-way valve is connected to the outlet of the heat exchanger through the heating pipeline, the second end of the heating control three-way valve is connected to the inlet of the hot water pump through the heating pipeline, and the third end of the heating control three-way valve is connected to the first end of the solid spring-loaded refrigeration and heating generator.

[0007] The first end of the refrigeration control three-way valve is connected to the outlet of the cold exchanger through the refrigeration pipeline, the second end of the refrigeration control three-way valve is connected to the inlet of the chilled water pump through the refrigeration pipeline, and the third end of the refrigeration control three-way valve is connected to the second end of the solid spring-loaded refrigeration and heating generator.

[0008] The inlet of the heat exchanger is connected to the outlet of the hot water pump, which drives the medium to flow in the heating pipeline; the inlet of the cold exchanger is connected to the outlet of the cold water pump, which drives the medium to flow in the refrigeration pipeline.

[0009] The driver is connected to the solid-state cartridge cooling and heating generator and is used to apply pressure to the solid cartridge material in the solid-state cartridge cooling and heating generator to generate heat or to unload pressure to absorb heat.

[0010] Optionally, the solid-state cartridge cooling and heating generator includes: a solid-state cartridge material unit with a flow cavity;

[0011] The third end of the heating control three-way valve is connected to one end of the flow cavity, and the third end of the cooling control three-way valve is connected to the other end of the flow cavity.

[0012] The driver is used to apply pressure or unload pressure to the solid cartridge material in the solid cartridge material unit.

[0013] Optionally, the cooling and heating system may also include: a main control unit;

[0014] The main control unit is connected to the driver, the heating control three-way valve, the cooling control three-way valve, the hot water pump, and the cold water pump, respectively.

[0015] Optionally, the cooling and heating system may also include: a temperature detection module;

[0016] The output of the temperature detection module is connected to the main control device to detect the outlet water temperature at the second end of the heating control three-way valve and send the detected temperature value to the main control device.

[0017] Optionally, the cooling and heating system may also include: two valve control modules;

[0018] The input end of the first valve control module is connected to the main control device, and the output end of the first valve control module is connected to the control end of the heating control three-way valve.

[0019] The input end of the second valve control module is connected to the main control device, and the output end of the second valve control module is connected to the control end of the refrigeration control three-way valve.

[0020] Optionally, the valve control module includes: a first switching transistor, a first resistor, and a second resistor;

[0021] The first terminal of the first switching transistor is connected to the output terminal of the valve control module, the second terminal of the first switching transistor is connected to the first terminal of the first resistor and the first terminal of the second resistor respectively, and the third terminal of the first switching transistor is grounded.

[0022] The second end of the first resistor is connected to the input end of the valve control module;

[0023] The second terminal of the second resistor is grounded.

[0024] Optionally, the cooling and heating system may also include: two water pump control modules;

[0025] The input terminal of the first water pump control module is connected to the main control device, and the output terminal of the first water pump control module is connected to the control terminal of the hot water pump.

[0026] The input terminal of the second water pump control module is connected to the main control device, and the output terminal of the second water pump control module is connected to the control terminal of the cold water pump.

[0027] Optionally, the water pump control module includes: a second switch, a third switch, a fourth switch, a fifth switch, a first diode, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, and a ninth resistor.

[0028] The first terminal of the second switch is connected to the second terminal of the third switch, the second terminal of the fourth switch, and the first terminal of the sixth resistor, respectively. The second terminal of the second switch is connected to the first terminal of the fourth resistor and the first terminal of the fifth resistor, respectively. The third terminal of the second switch is grounded.

[0029] The first terminal of the third switch is connected to the second DC power supply, and the third terminal of the third switch is connected to the first terminal of the fourth switch and the first terminal of the seventh resistor, respectively.

[0030] The first terminal of the fifth switch is connected to the anode of the first diode and the output terminal of the water pump control module, the second terminal of the fifth switch is connected to the second terminal of the seventh resistor and the first terminal of the eighth resistor, and the third terminal of the fifth switch is grounded through the ninth resistor.

[0031] The second end of the fourth resistor is connected to the first end of the third resistor and the input end of the water pump control module, respectively.

[0032] The second terminal of the third resistor is connected to the first DC power supply; the second terminal of the sixth resistor is connected to the second DC power supply; the cathode of the first diode is connected to the third DC power supply.

[0033] The second terminal of the fifth resistor, the second terminal of the eighth resistor, and the second terminal of the fourth switch are all grounded.

[0034] Optionally, the driver includes: a motor drive module and a motor;

[0035] The input terminal of the motor drive module is connected to the main control device, and the output terminal of the motor drive module is connected to the control terminal of the motor.

[0036] The motor is used to drive the solid cartridge material in the corresponding solid cartridge cooling and heating generator to apply pressure or unload pressure.

[0037] Optionally, both the refrigeration control three-way valve and the heating control three-way valve are two-position three-way valves.

[0038] This utility model provides a refrigeration and heating system. The refrigeration and heating system includes: a solid-state spring-loaded refrigeration and heating generator, a driver, a heating control three-way valve, a refrigeration control three-way valve, refrigeration piping, a heating piping, a hot water pump, a cold water pump, a cold exchanger, and a heat exchanger; the first end of the heating control three-way valve is connected to the outlet of the heat exchanger through the heating piping, the second end of the heating control three-way valve is connected to the inlet of the hot water pump through the heating piping, and the third end of the heating control three-way valve is connected to the first end of the solid-state spring-loaded refrigeration and heating generator; the first end of the refrigeration control three-way valve is connected to the outlet of the cold exchanger through the refrigeration piping, and the heating... The second end of the refrigeration control three-way valve is connected to the inlet of the chilled water pump via a refrigeration pipeline, and the third end of the refrigeration control three-way valve is connected to the second end of the solid-state spring-loaded refrigeration and heating generator. The inlet of the heat exchanger is connected to the outlet of the hot water pump, which drives the medium to flow in the heating pipeline. The inlet of the cold exchanger is connected to the outlet of the chilled water pump, which drives the medium to flow in the refrigeration pipeline. The driver is connected to the solid-state spring-loaded refrigeration and heating generator to apply pressure to the solid spring-loaded material in the generator to generate heat or to release pressure to absorb heat. In this embodiment, the solid-state spring-loaded refrigeration and heating generator has two circulation paths. During heating, the solid-state spring-loaded refrigeration and heating generator and the heat exchanger form a path for heating; during cooling, the solid-state spring-loaded refrigeration and heating generator and the cold exchanger form a path for cooling. The heating path and the cooling path are relatively independent, separating cooling and heating, which effectively improves the efficiency of cooling and heating. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 This is a schematic diagram of the structure of a refrigeration and heating system provided in an embodiment of the present invention;

[0041] Figure 2 This is a circuit diagram of a main control device provided in an embodiment of the present invention;

[0042] Figure 3 This is a circuit diagram of a temperature detection module provided in an embodiment of the present invention;

[0043] Figure 4 This is a circuit diagram of a valve control module provided in an embodiment of the present invention;

[0044] Figure 5This is a circuit diagram of a water pump control module provided in an embodiment of the present utility model;

[0045] Figure 6 This is a circuit diagram of a three-phase motor drive unit provided in an embodiment of the present invention;

[0046] Figure 7 This is a circuit diagram of a speed detection unit provided in an embodiment of the present invention;

[0047] Figure 8 This is a circuit diagram of a current detection unit provided in an embodiment of the present invention;

[0048] Figure 9 This is a circuit schematic diagram of a power module provided in an embodiment of the present utility model;

[0049] Figure 10 This is a schematic diagram of another refrigeration and heating system provided in this embodiment of the utility model. Detailed Implementation

[0050] To enable those skilled in the art to better understand this solution, the technical solutions in the embodiments of this solution will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this solution, not all of them. Based on the embodiments of this solution, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this solution.

[0051] The term "comprising" and any other variations thereof in the specification, claims, and accompanying drawings of this invention mean "including but not limited to," and are intended to cover a non-exclusive inclusion, not limited to the examples listed herein. Furthermore, the terms "first" and "second," etc., are used to distinguish different objects, not to describe a specific order.

[0052] The implementation of this utility model will be described in detail below with reference to the specific accompanying drawings:

[0053] Figure 1 This is a schematic diagram of a refrigeration and heating system provided for an embodiment of the present utility model. (Refer to...) Figure 1 The refrigeration and heating system includes: a solid-state spring-loaded refrigeration and heating generator 1, a driver 2, a heating control three-way valve 3, a refrigeration control three-way valve 4, refrigeration piping, heating piping, a hot water pump 5, a cold water pump 6, a cold exchanger 7, and a heat exchanger 8.

[0054] The first end of the heating control three-way valve 3 is connected to the outlet of the heat exchanger 8 through the heating pipeline, the second end of the heating control three-way valve 3 is connected to the inlet of the hot water pump 5 through the heating pipeline, and the third end of the heating control three-way valve 3 is connected to the first end of the solid spring-loaded cooling and heating generator 1.

[0055] The first end of the refrigeration control three-way valve 4 is connected to the outlet of the cold exchanger 7 through the refrigeration pipeline, the second end of the refrigeration control three-way valve 4 is connected to the inlet of the chilled water pump 6 through the refrigeration pipeline, and the third end of the refrigeration control three-way valve 4 is connected to the second end of the solid spring-loaded refrigeration and heating generator 1.

[0056] The inlet of heat exchanger 8 is connected to the outlet of hot water pump 5, which drives the medium to flow in the heating pipeline; the inlet of cold exchanger 7 is connected to the outlet of cold water pump 6, which drives the medium to flow in the refrigeration pipeline.

[0057] The driver 2 is connected to the solid-state cartridge cooling and heating generator 1 and is used to apply pressure to the solid cartridge material in the solid-state cartridge cooling and heating generator 1 to generate heat or to unload pressure to absorb heat.

[0058] Solid-state elastic materials are a class of solid materials that exhibit reversible temperature changes when an external mechanical field is applied or removed. These include: shape memory alloys, natural rubber, synthetic polymers, and plastic crystals. For example, nickel-titanium alloy (NiTi) has excellent shape memory effect and superelasticity. Under stress, it undergoes a martensitic phase transformation, achieving cooling or heating through the endothermic and exothermic processes during the phase transformation.

[0059] In this embodiment of the utility model, reference is made to Figure 1 The solid-state spring-loaded cooling and heating generator 1 is equipped with two circulation paths. When heating, the second and third ends of the heating control three-way valve 3 are connected, the driver 2 applies pressure to the solid-state spring-loaded cooling and heating generator 1, the solid spring-loaded cooling and heating generator undergoes a phase change and releases heat, the hot water pump 5 draws the heated medium from the solid-state spring-loaded cooling and heating generator 1 and sends it to the heat exchanger 8 to release heat, and then the first and third ends of the heating control three-way valve 3 are connected, the hot water pump 5 sends the cooled medium back to the solid-state spring-loaded cooling and heating generator 1, thereby realizing heating;

[0060] Similarly, during cooling, the second and third ends of the cooling control three-way valve 4 are connected, the driver 2 stops working, causing the solid-state spring-loaded cooling and heating generator 1 to unload pressure, the solid-state spring-loaded reverse phase change to release cooling capacity, the chilled water pump 6 draws the cooled medium from the solid-state spring-loaded cooling and heating generator 1 and sends it to the heat exchanger 7 to absorb heat, then the first and third ends of the cooling control three-way valve 4 are connected, and the chilled water pump 6 sends the medium after the cooling capacity is released back to the solid-state spring-loaded cooling and heating generator 1, thereby achieving cooling;

[0061] In this embodiment of the invention, two circulation paths are set up, and cooling and heating exchange heat through different circulation paths, which are relatively independent and effectively improve the efficiency of cooling and heating.

[0062] In one possible implementation, the solid-state cartridge cooling and heating generator 1 includes: a solid-state cartridge material unit having a flow cavity;

[0063] The third end of the heating control three-way valve 3 is connected to one end of the flow cavity, and the third end of the cooling control three-way valve 4 is connected to the other end of the flow cavity.

[0064] Driver 2 is used to apply pressure or unload pressure to the solid cartridge material in the solid cartridge material unit.

[0065] The solid-state spring-loaded cooling and heating generator 1 has a flow cavity, and the driver 2 acts on the solid-state spring-loaded material unit to make the solid-state spring-loaded material unit release or absorb heat; the medium in the flow cavity flows and conducts heat, sending the heat or cold energy to the heat exchanger 8 or the cold exchanger 7 to realize the collection of heat or cold energy.

[0066] For the heating and cooling system in the above embodiments, heating or cooling is achieved by controlling the heating control three-way valve 3, the cooling control three-way valve 4, the hot water pump 5, the cold water pump 6, etc.; the opening and closing of the two valves and the opening and closing of the cold water pump 6 and the hot water pump 5 can be completed manually or automatically.

[0067] Based on the above, in order to improve the usability of the system, refer to Figure 1 In one possible implementation, the cooling and heating system further includes: a main control device 9;

[0068] The main control unit 9 is connected to the driver 2, the heating control three-way valve 3, the cooling control three-way valve 4, the hot water pump 5, and the cold water pump 6, respectively.

[0069] In this embodiment of the invention, a main control device 9 is used to control two valves, driver 2, hot water pump 5, and cold water pump 6, which can automatically control cooling and heating, thus improving the ease of use of the system.

[0070] For example, the main control device 9 may include a microcontroller, a microprocessor, etc. For specific circuit principles, please refer to... Figure 2 The specifics will not be elaborated here. The main control device 9 sends signals to various components via wired or wireless means.

[0071] refer to Figure 2 The main control device 9 is also equipped with an infrared circuit for receiving infrared signals sent by external remote controls, etc., which will not be described in detail here.

[0072] Corresponding to the above embodiments, this utility model embodiment also provides a cooling and heating control method, applied to the main control device 9; the control method includes:

[0073] 1. The main control device 9 controls the connection between the first and third ends of the refrigeration control three-way valve 4, and at the same time controls the cold water pump 6 to start for a first preset time, drawing the medium from the cold exchanger 7 and sending it into the solid spring-loaded refrigeration and heating generator 1.

[0074] 2. The driver 2 applies pressure to the solid-state spring-loaded cooling and heating generator 1, and the solid-state spring-loaded material releases heat to heat the medium; after the second preset time (loading time), the second and third ends of the heating control three-way valve 3 are opened, and the hot water pump 5 is opened for the first preset time, and the heated medium enters the heat exchanger 8.

[0075] 3. After the second preset duration (heat maintenance duration), the hot water pump 5 is controlled to start for the first preset duration, and the first and third ends of the heating control three-way valve 3 are connected, so that the medium in the heat exchanger 8 flows back to the solid spring-loaded cooling and heating generator 1.

[0076] 4. Control the driver 2 to stop working so that the solid-state spring-loaded cooling and heating generator 1 is unloaded of pressure, the solid-state spring-loaded material absorbs heat and the medium is cooled down; after the second preset time (unloading time), control the refrigeration control three-way valve 4 to connect the second and third ends, and control the cold water pump 6 to start for the first preset time, so that the cooled medium enters the cold exchanger 7 to absorb heat; after the second preset time (cold maintenance time), jump to step 1 to continue execution.

[0077] In this embodiment of the invention, the cooling and heating circuits work alternately, and the medium flows between the cooling and heating pipes to achieve cooling and heating.

[0078] Furthermore, the above control methods may also include:

[0079] 1. The main control device 9 controls the first and third ends of the heating control three-way valve 3 to be open, and controls the hot water pump 5 to start for a first preset time to draw the medium from the heat exchanger 8 into the solid spring-loaded cooling and heating generator 1.

[0080] 2. The driver 2 applies pressure to the solid-state spring-loaded cooling and heating generator 1, and the solid-state spring-loaded material releases heat to heat the medium; after the second preset time, the second and third ends of the heating control three-way valve 3 are opened, and the hot water pump 5 is opened for the first preset time, and the medium enters the heat exchanger 8.

[0081] 3. After the second preset time, the first and third ends of the refrigeration control three-way valve 4 are connected, and the chilled water pump 6 is started for the first preset time to draw the medium from the cold exchanger 7 into the solid spring-loaded refrigeration and heating generator 1.

[0082] 4. Control the driver 2 to stop working so that the solid-state spring-loaded cooling and heating generator 1 is unloaded, the solid-state spring-loaded material absorbs heat and the medium is cooled down; after the second preset time, control the refrigeration control three-way valve 4 to connect the second and third ends, and control the cold water pump 6 to start for the first preset time, so that the medium enters the cold exchanger 7; after the second preset time, jump to step 1 to continue execution.

[0083] In this embodiment of the invention, the cooling and heating pathways work alternately, but the medium is sent from the cold exchanger 7 to the solid-state spring-loaded cooling and heating generator 1 and then returns to the cold exchanger 7; similarly, the medium is sent from the heat exchanger 8 to the solid-state spring-loaded cooling and heating generator 1 and then returns to the heat exchanger 8.

[0084] Based on the two embodiments above, cooling or heating can be achieved simultaneously.

[0085] The first preset duration can be set according to actual application requirements. The second preset duration can be 0.1S-0.5S, used for heat exchange.

[0086] Since the heat exchanger 8 absorbs heat and the cold exchanger 7 releases cold energy in this embodiment of the invention, the cooling and heating are relatively independent, and therefore, it can also be used for cooling or heating on its own.

[0087] For example, in the above embodiment, if the control method remains unchanged, and the heat exchanger 8 is used as a water storage tank, without considering its heat conversion, and only focusing on the cold exchanger 7, it can be used only for refrigeration.

[0088] Similarly, if the cold exchanger 7 is used as a water storage tank, and its cooling capacity conversion is not considered, and only the heat exchanger 8 is considered, then it can be used only for heating.

[0089] In one possible implementation, the cooling and heating system may further include: a temperature detection module 10;

[0090] The output of the temperature detection module 10 is connected to the main control device 9 and is used to detect the outlet water temperature at the second end of the heating control three-way valve 3 and send the detected temperature value to the main control device 9.

[0091] This embodiment of the invention also includes a temperature detection module 10 to detect the temperature of the water outlet, thereby controlling the temperature. Each operating cycle of the driver 2 includes: loading time for the solid spring-loaded material unit, heat maintenance time, unloading time, and cold maintenance time; the temperature can be adjusted by changing the frequency of loading and unloading the solid spring-loaded material unit by the driver 2. For example, when the temperature is lower than a preset temperature, the loading and unloading frequency of the driver 2 can be increased.

[0092] For example, the temperature detection module 10 includes a temperature sensor and peripheral circuitry, the circuit principle of which is referenced below. Figure 3This is a conventional technique in the field, and will not be elaborated further here.

[0093] In one possible implementation, the cooling and heating system may further include: two valve control modules 11;

[0094] The input end of the first valve control module 11 is connected to the main control device 9, and the output end of the first valve control module 11 is connected to the control end of the heating control three-way valve 3.

[0095] The input end of the second valve control module 11 is connected to the main control device 9, and the output end of the second valve control module 11 is connected to the control end of the refrigeration control three-way valve 4.

[0096] To enable automatic control of the two valves, a valve control module 11 is provided for each valve in this embodiment of the invention, and the main control device 9 controls the two valves through the valve control module 11.

[0097] In one possible implementation, refer to Figure 4 The valve control module 11 includes: a first switching transistor Q1, a first resistor R1, and a second resistor R2;

[0098] The first terminal of the first switch transistor Q1 is connected to the output terminal of the valve control module 11, the second terminal of the first switch transistor Q1 is connected to the first terminal of the first resistor R1 and the first terminal of the second resistor R2 respectively, and the third terminal of the first switch transistor Q1 is grounded.

[0099] The second end of the first resistor R1 is connected to the input end of the valve control module 11;

[0100] The second terminal of the second resistor R2 is grounded.

[0101] refer to Figure 4 The first switching transistor Q1 can be an NMOS transistor. The valve can be controlled by controlling the first switching transistor Q1 to turn on or off.

[0102] In one possible implementation, the cooling and heating system may further include: two water pump control modules 12;

[0103] The input terminal of the first water pump control module 12 is connected to the main control device 9, and the output terminal of the first water pump control module 12 is connected to the control terminal of the hot water pump 5.

[0104] The input terminal of the second water pump control module 12 is connected to the main control device 9, and the output terminal of the second water pump control module 12 is connected to the control terminal of the cold water pump 6.

[0105] In one possible implementation, refer to Figure 5The water pump control module 12 includes: a second switch Q2, a third switch Q3, a fourth switch Q4, a fifth switch Q5, a first diode D1, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, and a ninth resistor R9.

[0106] The first terminal of the second switch Q2 is connected to the second terminal of the third switch Q3, the second terminal of the fourth switch Q4 and the first terminal of the sixth resistor R6 respectively. The second terminal of the second switch Q2 is connected to the first terminal of the fourth resistor R4 and the first terminal of the fifth resistor R5 respectively. The third terminal of the second switch Q2 is grounded.

[0107] The first terminal of the third switch Q3 is connected to the second DC power supply, and the third terminal of the third switch Q3 is connected to the first terminal of the fourth switch Q4 and the first terminal of the seventh resistor R7, respectively.

[0108] The first terminal of the fifth switch Q5 is connected to the anode of the first diode D1 and the output terminal of the water pump control module 12, respectively. The second terminal of the fifth switch Q5 is connected to the second terminal of the seventh resistor R7 and the first terminal of the eighth resistor R8, respectively. The third terminal of the fifth switch Q5 is grounded through the ninth resistor R9.

[0109] The second end of the fourth resistor R4 is connected to the first end of the third resistor R3 and the input end of the water pump control module 12, respectively.

[0110] The second terminal of the third resistor R3 is connected to the first DC power supply; the second terminal of the sixth resistor R6 is connected to the second DC power supply; the cathode of the first diode D1 is connected to the third DC power supply.

[0111] The second terminal of the fifth resistor R5, the second terminal of the eighth resistor R8, and the second terminal of the fourth switch Q4 are all grounded.

[0112] In this embodiment of the invention, the pump is turned on by the cooperation of various components. The circuit structure is simple, the number of components is small, and the control is precise.

[0113] For example, the first DC power supply can be 3.3V, the second DC power supply can be 15V, and the third DC power supply can be 24V.

[0114] In one possible implementation, the driver 2 includes: a motor drive module 13 and a motor;

[0115] The input terminal of the motor drive module 13 is connected to the main control device 9, and the output terminal of the motor drive module 13 is connected to the control terminal of the motor.

[0116] The motor is used to drive the solid cartridge material in the corresponding solid cartridge cooling and heating generator 1 to apply pressure or unload pressure.

[0117] In this embodiment of the present invention, the main control device 9 drives the motor to run through the motor drive module 13. When the motor rotates, it drives the loading component in the solid-state spring-loaded cooling and heating generator 1 to apply pressure to the solid-state spring-loaded material. When the motor stops, the solid-state spring-loaded material unloads the pressure.

[0118] In this embodiment of the present invention, the driver 2 is driven by a motor, which can be a DC motor, a stepper motor, a permanent magnet synchronous motor, a servo motor, an AC synchronous motor, or a torque motor, etc., and is not specifically limited here.

[0119] In one possible implementation, the motor drive module 13 includes: a three-phase motor drive unit 131, a speed detection unit 132, and a current detection unit 133;

[0120] The input terminal of the three-phase motor drive unit 131 is connected to the drive terminal of the motor drive module 13, and the three-phase output terminal of the three-phase motor drive unit 131 is used to drive the motor.

[0121] The output of the speed detection unit 132 is connected to the main control device 9 and is used to detect the speed of the three-phase motor.

[0122] The input terminal of the current detection unit 133 is connected to the three-phase motor drive unit 131, and the output terminal of the current detection unit 133 is connected to the main control device 9 for detecting the motor current.

[0123] Circuit schematic diagram of three-phase motor drive unit 131 (reference) Figure 6 The circuit schematic of the speed detection unit 132 is shown in the reference diagram. Figure 7 Reference circuit principle for current detection unit 133 Figure 8 The specifics will not be elaborated here.

[0124] In one possible implementation, both the refrigeration control three-way valve 4 and the heating control three-way valve 3 are two-position three-way valves.

[0125] Both the refrigeration control three-way valve 4 and the heating control three-way valve 3 are two-position three-way valves with two states. For example, for the refrigeration control three-way valve 4, when the valve is in the first state, the second and third ends of the refrigeration control three-way valve 4 are connected; when the valve is in the second state, the first and third ends of the refrigeration control three-way valve 4 are connected.

[0126] In one possible implementation, both the cold water pump 6 and the hot water pump 5 can be bidirectional self-priming pumps.

[0127] Corresponding to the above embodiments, the above-mentioned cooling and heating system may further include: a power supply module, used to provide DC power to other modules, for example, the power supply module outputs a first DC power supply, a second DC power supply, and a third DC power supply, etc., the circuit principle is referenced. Figure 9 The specifics will not be elaborated here.

[0128] To improve the efficiency of cooling and heating, multiple cooling and heating circulation paths can be set in the embodiments of this utility model.

[0129] In one possible implementation, refer to Figure 10 There are multiple solid-state spring-loaded cooling and heating generators 1, 2, 3-way heating control valves 3 and 4; each solid-state spring-loaded cooling and heating generator 1 corresponds one-to-one with each 2, 3, and 4.

[0130] The first end of each solid-state spring-loaded cooling and heating generator 1 is connected to the third end of the corresponding heating control three-way valve 3, and the second end of each solid-state spring-loaded cooling and heating generator 1 is connected to the third end of the corresponding cooling control three-way valve 4.

[0131] The second end of each heating control three-way valve 3 is connected to the liquid inlet of the hot water pump 5 through a pipeline, and the second end of each cooling control three-way valve 4 is connected to the liquid inlet of the cold water pump 6 through a pipeline.

[0132] The first end of each heating control three-way valve 3 is connected to the outlet of the heat exchanger 8 through a pipeline, and the first end of each cooling control three-way valve 4 is connected to the outlet of the cooling exchanger 7 through a pipeline.

[0133] The outlet of the hot water pump 5 is connected to the inlet of the heat exchanger 8 through a pipeline, and the outlet of the cold water pump 6 is connected to the inlet of the cold exchanger 7 through a pipeline.

[0134] In this embodiment of the utility model, reference is made to Figure 10 (Only one driver 2 is shown). Each solid-state cartridge cooling / heating generator 1 is equipped with a cold circulation path and a hot circulation path. Each cold circulation path shares a chilled water pump 6 and a cold exchanger 7, and each hot circulation path shares a hot water pump 5 and a heat exchanger 8, effectively improving cooling and heating efficiency. Each solid-state cartridge cooling / heating generator 1 can operate in shifts, sharing the chilled water pump 6 and the hot water pump 5 to achieve both cooling and heating; details will not be elaborated here.

[0135] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A refrigeration and heating system, characterized by, The system comprises: a solid-state elastic card refrigeration and heating generator, a driver, a heating control three-way valve, a refrigeration control three-way valve, a refrigeration pipeline, a heating pipeline, a hot water pump, a cold water pump, a cold heat exchanger, and a hot heat exchanger; a first end of the heating control three-way valve is connected with an outlet of the hot heat exchanger through the heating pipeline, a second end of the heating control three-way valve is connected with a liquid inlet of the hot water pump through the heating pipeline, and a third end of the heating control three-way valve is connected with a first end of the solid-state elastic card refrigeration and heating generator; a first end of the refrigeration control three-way valve is connected with an outlet of the cold heat exchanger through the refrigeration pipeline, a second end of the refrigeration control three-way valve is connected with a liquid inlet of the cold water pump through the refrigeration pipeline, and a third end of the refrigeration control three-way valve is connected with a second end of the solid-state elastic card refrigeration and heating generator; an inlet of the hot heat exchanger is connected with a liquid outlet of the hot water pump, and the hot water pump is used for driving a medium to flow in the heating pipeline; an inlet of the cold heat exchanger is connected with a liquid outlet of the cold water pump; and the cold water pump is used for driving the medium to flow in the refrigeration pipeline; the driver is connected with the solid-state elastic card refrigeration and heating generator, and is used for applying pressure to solid-state elastic card materials in the solid-state elastic card refrigeration and heating generator to generate heat or unloading pressure to absorb heat.

2. The refrigeration and heating system of claim 1, wherein, The solid-state elastic card refrigeration and heating generator comprises a solid-state elastic card material unit having a flow cavity. A third end of the heating control three-way valve is connected with one end of the flow cavity, and a third end of the refrigeration control three-way valve is connected with the other end of the flow cavity. The driver is used for applying pressure to or unloading pressure from the solid-state elastic card materials in the solid-state elastic card material unit.

3. The refrigeration and heating system of claim 1, wherein, The refrigeration and heating system further comprises a main control device. The main control device is connected with the driver, the heating control three-way valve, the refrigeration control three-way valve, the hot water pump, and the cold water pump.

4. The refrigeration and heating system according to claim 3, wherein The refrigeration and heating system further comprises a temperature detection module. An output end of the temperature detection module is connected with the main control device, and is used for detecting a water outlet temperature of a second end of the heating control three-way valve and sending a detected temperature value to the main control device.

5. The refrigeration and heating system as set forth in claim 3, wherein The refrigeration and heating system further comprises two valve control modules. An input end of a first valve control module is connected with the main control device, and an output end of the first valve control module is connected with a control end of the heating control three-way valve. An input end of a second valve control module is connected with the main control device, and an output end of the second valve control module is connected with a control end of the refrigeration control three-way valve.

6. The refrigeration and heating system as set forth in claim 5, wherein The valve control module comprises a first switch tube, a first resistor, and a second resistor. A first end of the first switch tube is connected with an output end of the valve control module, a second end of the first switch tube is connected with a first end of the first resistor and a first end of the second resistor respectively, and a third end of the first switch tube is grounded. A second end of the first resistor is connected with an input end of the valve control module. A second end of the second resistor is grounded.

7. The refrigeration and heating system according to claim 3, wherein The refrigeration and heating system further comprises two water pump control modules. The input end of the first water pump control module is connected with the main control device, and the output end of the first water pump control module is connected with the control end of the hot water pump. The input end of the second water pump control module is connected with the main control device, and the output end of the second water pump control module is connected with the control end of the cold water pump.

8. The refrigeration and heating system according to claim 7, wherein The water pump control module comprises a second switch tube, a third switch tube, a fourth switch tube, a fifth switch tube, a first diode, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor and a ninth resistor. The first end of the second switch tube is connected with the second end of the third switch tube, the second end of the fourth switch tube and the first end of the sixth resistor respectively, the second end of the second switch tube is connected with the first end of the fourth resistor and the first end of the fifth resistor respectively, and the third end of the second switch tube is grounded. The first end of the third switch tube is connected with a second direct current power supply, and the third end of the third switch tube is connected with the first end of the fourth switch tube and the first end of the seventh resistor respectively. The first end of the fifth switch tube is connected with the anode of the first diode and the output end of the water pump control module respectively, the second end of the fifth switch tube is connected with the second end of the seventh resistor and the first end of the eighth resistor respectively, and the third end of the fifth switch tube is grounded through the ninth resistor. The second end of the fourth resistor is connected with the first end of the third resistor and the input end of the water pump control module respectively. The second end of the third resistor is connected with a first direct current power supply, the second end of the sixth resistor is connected with the second direct current power supply, and the cathode of the first diode is connected with a third direct current power supply. The second end of the fifth resistor, the second end of the eighth resistor and the second end of the fourth switch tube are grounded.

9. The refrigeration and heating system according to claim 3, wherein The driver comprises a motor driving module and a motor. The input end of the motor driving module is connected with the main control device, and the output end of the motor driving module is connected with the control end of the motor. The motor is used for driving the solid-state elastic card material in the solid-state elastic card refrigeration and heating generator to apply pressure or unload pressure.

10. The refrigeration and heating system according to any one of claims 1 to 9, wherein The refrigeration control three-way valve and the heating control three-way valve are both two-position three-way valves.

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