Novel intelligent photovoltaic frequency conversion heat pump unit

Abstract

The utility model relates to the technical field of heating, ventilation and air conditioning, and discloses a novel intelligent photovoltaic frequency conversion heat pump unit which comprises an energy storage bin, a heat pump machine is arranged at the top of the energy storage bin, a gas-liquid separator is installed at the bottom of an inner cavity of the heat pump machine, a compressor is arranged on the left side of the gas-liquid separator, a condenser is arranged on the left side of the compressor, and the condenser is arranged on the right side of the gas-liquid separator. And a liquid storage tank is arranged on the right side of the condenser. An energy storage bin is arranged below a heat pump machine, a battery pack is installed in the energy storage bin, when the heat pump machine stops running, a photovoltaic panel is communicated with the battery pack through a right automatic converter, electricity generated by the photovoltaic panel can be charged into the battery pack, and power can be supplied through the battery pack during power failure; therefore, the problems that an existing photovoltaic heat pump unit does not have the energy storage function, when the heat pump unit is not used, electric energy converted by a photovoltaic panel cannot be stored, the heat pump unit is powered off in severe weather, and the heat pump unit cannot be used at the moment are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of heating ventilation air conditioning, specifically is a novel intelligent photovoltaic variable frequency heat pump unit. BACKGROUND

[0002] The working principle of the air source heat pump unit is based on the reverse Carnot cycle, and the air source heat pump unit is mainly composed of a compressor, an evaporator, a condenser and an expansion valve to form a closed system, and an appropriate amount of working medium is filled in the closed system to realize heat transfer. The liquid working medium first flows into the evaporator, absorbs heat in the air in the evaporator and evaporates to form steam. The latent heat absorbed by the working medium in this process is the heat recovered from the air. The air source heat pump makes outdoor air flow through the evaporator through a fan, and the heat of the air is transferred to the working medium, and the outdoor air is discharged from the system after its temperature is reduced. The evaporated working medium vapor is sucked into the compressor, and the compressor compresses it to make the working medium into a high-temperature and high-pressure gas. The compressor consumes electric energy to provide power for the heat transfer of the whole system, so that the working medium can change state at different temperatures and pressures. The high-temperature and high-pressure working medium gas enters the condenser and exchanges heat with the water or other heat-carrying medium in the condenser. The working medium condenses into a liquid in the condenser, and releases the heat absorbed in the evaporator and the heat converted by the compressor to the water or other medium that needs to be heated, so as to increase the temperature of the water or other medium for heating, domestic hot water and other purposes. The liquid working medium is expanded by the expansion valve, and its pressure and temperature are greatly reduced, and it returns to the evaporator again to absorb heat from the air and evaporate, thereby completing a cycle. The expansion valve adjusts the flow of the working medium and reduces the pressure, so that the working medium can evaporate and absorb heat at a suitable low temperature and low pressure in the evaporator.

[0003] The existing photovoltaic heat pump unit does not have the energy storage function. When the heat pump unit is not used, the electric energy converted by the photovoltaic panel cannot be stored, and the heat pump unit will be powered off when encountering bad weather. At this time, the heat pump unit cannot be used. UTILITY MODEL CONTENTS

[0004] In view of the defects of the prior art, the utility model provides a novel intelligent photovoltaic variable frequency heat pump unit, which has the advantages of strong practicability and good stability of the battery pack under high and low temperature conditions, and solves the problems raised in the above background art.

[0005] The utility model provides the following technical scheme: A novel intelligent photovoltaic frequency conversion heat pump unit, including energy storage warehouse, the top of energy storage warehouse is equipped with heat pump machine, the bottom of heat pump machine inner chamber is installed with gas -liquid separator, the left side of gas -liquid separator is equipped with compressor, the left side of compressor is equipped with condenser, the right side of condenser is equipped with liquid storage tank, the right side of liquid storage tank is equipped with expansion valve, the right side of gas -liquid separator is equipped with evaporimeter, the bottom of energy storage warehouse is fixedly assembled with base, the outer wall of energy storage warehouse is equipped with square groove, the inner wall of square groove is installed with warehouse door, the inner wall of energy storage warehouse is fixedly assembled with bracket, the top of bracket is installed with battery group, the bottom of energy storage warehouse is equipped with mounting groove, the inner wall of mounting groove is installed with heat dissipation fan, the outer wall of energy storage warehouse is installed with temperature response probe, compressor is electrically connected with drive board through wire, drive board is electrically connected with boost MPPT device through wire, boost MPPT device is electrically connected with photovoltaic board through wire, boost MPPT device and drive board are all installed on the inner wall of heat pump machine, and photovoltaic board is located at the top of heat pump machine.

[0006] As a preferred technical scheme of the utility model, the left sealing cover and the right sealing cover are respectively provided at the two ends of the top of the heat dissipation fan, and the left sealing cover and the right sealing cover are both in sliding connection with the heat dissipation fan.

[0007] As a preferred technical scheme of the utility model, the inner walls of the left sealing cover and the right sealing cover are respectively threadedly connected with a positive screw rod and a reverse screw rod, the outer edge of the positive screw rod is fixedly sleeved with a rotating disc one, the outer wall of the rotating disc one is rotatably connected with a belt, the inner wall of the belt is rotatably connected with a rotating disc two, and the inner wall of the rotating disc two is fixedly sleeved on the power output shaft of the servo motor.

[0008] As a preferred technical scheme of the utility model, the top of the servo motor is fixedly assembled with a fixed support, the fixed support is fixedly assembled on the inner wall of the energy storage warehouse, the top of the fixed support is fixedly assembled with a controller, the temperature response probe is electrically connected with the controller, and the controller is electrically connected with the servo motor.

[0009] As a preferred technical scheme of the utility model, the outer wall of the energy storage warehouse is installed with a setting module, the setting module is electrically connected with the controller, the controller is electrically connected with the heat pump machine, and the battery group is electrically connected with the heat pump machine.

[0010] As a preferred technical scheme of the utility model, the inner wall of the left side of the energy storage warehouse is fixedly assembled with a right automatic converter, the right automatic converter is electrically connected with the battery group, and the right automatic converter is electrically connected with the photovoltaic board.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. This new type of intelligent photovoltaic variable frequency heat pump unit has an energy storage compartment installed below the heat pump machine, in which a battery pack is installed. When the heat pump machine stops running, the photovoltaic panel and the battery pack are connected through an automatic converter. The electricity generated by the photovoltaic panel will charge the battery pack. In the event of a power outage, the battery pack can provide power. This solves the problem that existing photovoltaic heat pump units do not have energy storage function. When the heat pump unit is not in use, the electricity converted by the photovoltaic panel cannot be stored. The heat pump unit may also experience power outages during severe weather, at which time the heat pump unit will be unusable.

[0013] 2. This new type of intelligent photovoltaic variable frequency heat pump unit detects temperature through a temperature sensing probe. When the temperature is low, the servo motor rotates, driving the positive and negative lead screws to rotate. The left and right sealing covers move towards the center, sealing the mounting slot and preventing cold air from entering the equipment. Conversely, when the temperature is high, the left and right sealing covers move to the sides, opening the mounting slot and allowing the cooling fan to cool the battery pack, thus improving the stability of the battery pack.

[0014] 3. This new type of intelligent photovoltaic inverter heat pump unit connects the photovoltaic panel to the booster-type BOOSTMPPT device through the setting of the booster-type BOOSTMPPT device. The electricity generated by the photovoltaic panel is directly connected to the DC bus on the drive board through the booster-type BOOSTMPPT device. The photovoltaic DC power directly drives the compressor, and the compressor does not use the mains power, resulting in a more energy-saving and environmentally friendly intelligent photovoltaic direct-drive inverter heat pump. Attached Figure Description

[0015] Figure 1 This is a frontal three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the bottom three-dimensional structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the battery pack structure of this utility model;

[0018] Figure 4 This is a three-dimensional view of the back of the present invention;

[0019] Figure 5 This is a schematic diagram of the internal structure of this utility model;

[0020] Figure 6 This utility model Figure 5 Enlarged structural diagram at point A in the diagram;

[0021] Figure 7The utility model discloses a boost MPPT device connection schematic drawing of boosting.

[0022] Figure 8 The utility model discloses air energy heat pump working principle schematic drawing.

[0023] In the drawing: 1, energy storage warehouse;2, heat pump machine;221, gas-liquid separator;222, compressor;223, condenser;224, liquid storage tank;225, expansion valve;226, evaporator;227, drive board;228, boost MPPT device of boosting;229, photovoltaic board;3, base;4, square groove;5, warehouse door;6, installation groove;7, bracket;8, battery pack;9, right automatic converter;10, heat dissipation fan;11, left sealing cover;12, right sealing cover;13, positive screw rod;14, reverse screw rod;15, carousel one;16, belt;17, carousel two;18, servo motor;19, fixed support;20, controller;21, temperature sensing probe;22, set module. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the utility model.

[0025] Please refer to Figures 1-6The utility model provides a novel intelligent photovoltaic frequency conversion heat pump unit, including energy storage warehouse 1, the top of energy storage warehouse 1 is equipped with heat pump machine 2, the bottom of heat pump machine 2 inner chamber is installed with gas -liquid separator 221, the left side of gas -liquid separator 221 is equipped with compressor 222, the left side of compressor 222 is equipped with condenser 223, the right side of condenser 223 is equipped with liquid storage tank 224, the right side of liquid storage tank 224 is equipped with expansion valve 225, the right side of gas -liquid separator 221 is equipped with evaporator 226, and the outdoor air is heat exchanged through evaporator 226, and the air after temperature reduction is discharged from the system by fan, and the working medium in evaporator 226 is absorbed and vaporized to be sucked into compressor 222, and compressor 222 compresses the low-pressure working medium gas into high-temperature, high-pressure gas and sends into condenser 223, and the water forced circulation by water pump also passes through condenser 223, and after being heated by working medium, the water is sent to user, and the working medium is cooled into liquid, the liquid is flowed into evaporator 226 again after throttling and cooling by expansion valve 225, and the cycle is repeated, the bottom of energy storage warehouse 1 is fixedly equipped with base 3, the outer wall of energy storage warehouse 1 is equipped with square groove 4, the inner wall of square groove 4 is installed with warehouse door 5, the inner wall of energy storage warehouse 1 is fixedly equipped with bracket 7, the top of bracket 7 is installed with battery pack 8, the bottom of energy storage warehouse 1 is equipped with mounting groove 6, the inner wall of mounting groove 6 is installed with heat dissipation fan 10, the outer wall of energy storage warehouse 1 is installed with temperature sensing probe 21, compressor 222 is electrically connected with driving board 227 through wire, driving board 227 is electrically connected with boost MPPT device 228 through wire, boost MPPT device 228 is electrically connected with photovoltaic panel 229 through wire, and boost MPPT device 228 and driving board 227 are all installed on the inner wall of heat pump machine 2, and photovoltaic panel 229 is located at the top of heat pump machine 2, through the setting of battery pack 8, when heat pump machine 2 is in the stop running state, the electric energy converted by photovoltaic panel 229 can be stored in battery pack 8 as standby power supply, the outdoor temperature is monitored through temperature sensing probe 21, through the setting of heat dissipation fan 10, heat dissipation fan 10 can dissipate the heat in energy storage warehouse 1, and battery pack 8 is cooled, the stability of battery pack 8 is improved, the electricity emitted by photovoltaic panel 229 directly accesses the DC bus on driving board 227 through boost MPPT device 228, the direct drive of photovoltaic DC is used to drive compressor 222, so that compressor 222 does not use mains electricity and is more energy-saving, and boost MPPT device 228 is a device that combines boost circuit and MPPT maximum power point tracking algorithm, is mainly used in solar power generation system occasions, and its core function is to raise the input voltage, such as the output voltage of solar panel, to the required voltage level, and ensure that the maximum power is extracted from the input source through the MPPT algorithm.

[0026] In a preferred embodiment, the top of the heat dissipation fan 10 is provided with a left sealing cover 11 and a right sealing cover 12 at both ends, and the left sealing cover 11 and the right sealing cover 12 are both in sliding connection with the heat dissipation fan 10. When the outdoor temperature is low, the left sealing cover 11 and the right sealing cover 12 seal the heat dissipation fan 10, so that cold air cannot enter the energy storage compartment 1, which can effectively ensure the stability of the battery pack 8.

[0027] In a preferred embodiment, the inner walls of the left sealing cover 11 and the right sealing cover 12 are respectively threadedly connected with a positive screw rod 13 and a negative screw rod 14, the outer edge of the positive screw rod 13 is fixedly sleeved with a rotating disc one 15, the outer wall of the rotating disc one 15 is rotatably connected with a belt 16, the inner wall of the belt 16 is rotatably connected with a rotating disc two 17, the inner wall of the rotating disc two 17 is fixedly sleeved on the power output shaft of a servo motor 18, and the positive screw rod 13 and the negative screw rod 14 are driven to rotate by the rotation of the servo motor 18, so that the left sealing cover 11 and the right sealing cover 12 move towards the middle, so that the left sealing cover 11 and the right sealing cover 12 can seal the mounting groove 6. When the positive screw rod 13 and the negative screw rod 14 are reversed, the left sealing cover 11 and the right sealing cover 12 move to both sides respectively, so that the left sealing cover 11 and the right sealing cover 12 will not seal the mounting groove 6.

[0028] In a preferred embodiment, the top of the servo motor 18 is fixedly provided with a fixed support 19, the fixed support 19 is fixedly provided on the inner wall of the energy storage compartment 1, the top of the fixed support 19 is fixedly provided with a controller 20, a temperature sensing probe 21 is electrically connected with the controller 20, the controller 20 is electrically connected with the servo motor 18, and the temperature is detected by the temperature sensing probe 21. When the set temperature is reached, the controller 20 controls the servo motor 18 to operate to open or close the left sealing cover 11 and the right sealing cover 12.

[0029] In a preferred embodiment, the outer wall of the energy storage compartment 1 is provided with a setting module 22, the setting module 22 is electrically connected with the controller 20, the controller 20 is electrically connected with the heat pump machine 2, and the battery pack 8 is electrically connected with the heat pump machine 2. Because the temperature of each region is different, the temperature data is transmitted to the controller 20 through the setting module 22, so that the servo motor 18 can be operated when the temperature sensing probe 21 reaches the set temperature.

[0030] In a preferred embodiment, the inner wall of the left side of the energy storage bin 1 is fixedly provided with a right automatic converter 9, the right automatic converter 9 is electrically connected with the battery pack 8, and the right automatic converter 9 is electrically connected with the photovoltaic panel 229; when the heat pump machine 2 is running, the photovoltaic panel 229 generates electricity to directly control the heat pump machine 2 to run; when the heat pump machine 2 stops running, the photovoltaic panel 229 is connected with the battery pack 8 through the right automatic converter 9, and the electricity generated by the photovoltaic panel 229 is charged into the battery pack 8; when the heat pump machine 2 is running, the electricity generated by the photovoltaic panel 229 is connected with the heat pump machine 2 through the right automatic converter 9, so that the heat pump machine 2 can run.

[0031] Working principle, in use, the working medium in the evaporator 226 absorbs heat and vaporizes to be sucked into the compressor 222, the compressor 222 compresses the low-pressure working medium gas into high-temperature and high-pressure gas and sends it into the condenser 223, the water forcedly circulated by the water pump also passes through the condenser 223, is heated by the working medium, and is sent to be used by users, and the working medium is cooled into liquid, the liquid flows into the evaporator 226 again after being throttled and cooled by the expansion valve 225, and the working is repeatedly circulated; when the heat pump machine 2 is used, the electricity generated by the photovoltaic panel 229 is connected with the heat pump machine 2 through the right automatic converter 9, and the heat pump machine 2 runs; when the heat pump machine 2 stops running, the photovoltaic panel 229 is connected with the battery pack 8 through the right automatic converter 9, and the electricity generated by the photovoltaic panel 229 is charged into the battery pack 8; the temperature is detected through the temperature sensing probe 21, when the temperature is low, the servo motor 18 rotates to drive the positive lead screw 13 and the reverse lead screw 14 to rotate, the left sealing cover 11 and the right sealing cover 12 move to the middle, the left sealing cover 11 and the right sealing cover 12 can seal the mounting groove 6, so that cold air cannot enter the equipment, when the temperature is high, the servo motor 18 reversely rotates to drive the positive lead screw 13 and the reverse lead screw 14 to rotate, the left sealing cover 11 and the right sealing cover 12 move to the two sides, the left sealing cover 11 and the right sealing cover 12 do not seal the mounting groove 6, and then the temperature in the energy storage bin 1 is dissipated through the heat dissipation fan 10, the electricity generated by the photovoltaic panel 229 is directly connected to the direct-current bus on the driving board 227 through the boost type BOOST MPPT device 228, the photovoltaic direct-current electricity is directly used to drive the compressor 222, and the compressor 222 does not use commercial power, so that the device is more energy-saving in use.

[0032] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A novel intelligent photovoltaic variable frequency heat pump unit, comprising an energy storage compartment (1), characterized in that: The energy storage chamber (1) is equipped with a heat pump machine (2) at the top. A gas-liquid separator (221) is installed at the bottom of the inner cavity of the heat pump machine (2). A compressor (222) is installed on the left side of the gas-liquid separator (221). A condenser (223) is installed on the left side of the compressor (222). A liquid storage tank (224) is installed on the right side of the condenser (223). An expansion valve (225) is installed on the right side of the liquid storage tank (224). An evaporator (226) is installed on the right side of the gas-liquid separator (221). A base (3) is fixedly installed at the bottom of the energy storage chamber (1). A square groove (4) is opened on the outer wall of the energy storage chamber (1). A door (5) is installed on the inner wall of the square groove (4). A bracket (7) is fixedly installed on the inner wall of the energy storage chamber (1). A battery pack (8) is installed on the top of (7). An installation groove (6) is opened at the bottom of the energy storage chamber (1). A cooling fan (10) is installed on the inner wall of the installation groove (6). A temperature sensing probe (21) is installed on the outer wall of the energy storage chamber (1). The compressor (222) is electrically connected to the drive board (227) through wires. The drive board (227) is electrically connected to the boost type BOOSTMPPT device (228) through wires. The boost type BOOSTMPPT device (228) is electrically connected to the photovoltaic panel (229) through wires. The boost type BOOSTMPPT device (228) and the drive board (227) are both installed on the inner wall of the heat pump machine (2). The photovoltaic panel (229) is located on the top of the heat pump machine (2).

2. The novel intelligent photovoltaic variable frequency heat pump unit according to claim 1, characterized in that: The top of the cooling fan (10) is provided with a left sealing cover (11) and a right sealing cover (12) at both ends, and the left sealing cover (11) and the right sealing cover (12) are slidably connected to the cooling fan (10).

3. The novel intelligent photovoltaic variable frequency heat pump unit according to claim 2, characterized in that: The inner walls of the left sealing cover (11) and the right sealing cover (12) are respectively threaded with a positive lead screw (13) and a negative lead screw (14). The outer edge of the positive lead screw (13) is fixedly sleeved with a turntable (15). The outer wall of the turntable (15) is rotatably connected with a belt (16). The inner wall of the belt (16) is rotatably connected with a turntable (17). The inner wall of the turntable (17) is fixedly sleeved on the power output shaft of the servo motor (18).

4. A novel intelligent photovoltaic variable frequency heat pump unit according to claim 3, characterized in that: The top of the servo motor (18) is fixedly fitted with a fixed bracket (19), which is fixedly fitted to the inner wall of the energy storage chamber (1). The top of the fixed bracket (19) is fixedly fitted with a controller (20), the temperature sensing probe (21) is electrically connected to the controller (20), and the controller (20) is electrically connected to the servo motor (18).

5. A novel intelligent photovoltaic variable frequency heat pump unit according to claim 1, characterized in that: An adjustment module (22) is installed on the outer wall of the energy storage compartment (1). The adjustment module (22) is electrically connected to the controller (20). The controller (20) is electrically connected to the heat pump machine (2). The battery pack (8) is electrically connected to the heat pump machine (2).

6. A novel intelligent photovoltaic variable frequency heat pump unit according to claim 1, characterized in that: A right automatic converter (9) is fixedly installed on the inner wall of the left side of the energy storage compartment (1). The right automatic converter (9) is electrically connected to the battery pack (8) and the photovoltaic panel (229).

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