CN201163075Y - Small high-power split semiconductor air conditioner - Google Patents

Abstract

The utility model belongs to a small high-power split type semiconductor air conditioner, which includes an inside unit, an outside unit and a storage battery pack, and is characterized in that: the inside unit and the outside unit are connected by water outlet pipes with quick connectors and The return pipe is connected, and the outer machine is provided with an outer case for installing various components, and the wall of the outer case is provided with a socket for connecting the battery pack. By adopting a split type, the machine inside the box is fixed in the storage box, and the machine outside the box is portable, placed outside the box, and connected with a heat pipe through a quick connector, which is convenient for quick assembly or disassembly; the split type semiconductor air conditioner adopts a high-efficiency planer Chipped radiator, semiconductor cooling component array adopts high-efficiency design, and the semiconductor thermoelectric cooling component is selected to work at the best power point. The structure of the whole machine is compact, so it is small in size and light in weight, easy to move and carry The air temperature in the vehicle storage box is adjusted to keep the items in the box in a safe temperature range.

Description

Small high-power split semiconductor air conditioner

technical field

The utility model belongs to the application technical field of semiconductor thermoelectric cooling components, in particular to a small-sized high-power split semiconductor air conditioner.

Background technique

At present, Chinese patent application No. 00265262.5 relates to a semiconductor air conditioner in a vehicle-mounted storage and transportation box. Its volume and weight are relatively large, and it needs to be equipped with a large-capacity battery pack, so it is not suitable for small vehicles. The shelters of existing small transport vehicles generally use mechanical compressor air conditioners, using Freon refrigerants; and there is no independent temperature adjustment device inside the vehicle storage tank. Under the harsh vibration conditions of vehicle transportation, the mechanical compressor air conditioner is prone to failure and failure, which cannot meet the safety requirements. It is necessary to equip the vehicle storage box with a portable semiconductor air conditioner as an emergency spare part, and continue to maintain the air in the storage box during the fault maintenance period. Temperature adjustment. Chinese patent 01132319.1 discloses a portable semiconductor air conditioner. The structure is too simple and the cooling power is small. It is only suitable for regulating the body surface temperature of a single person. The air temperature in the storage box is adjusted. A semiconductor air conditioner is disclosed in Chinese patent 01265706.9, which uses a water pump, a water separator, and a water collector, and needs water as a medium medium to transmit heat, which is not suitable for vehicle transportation conditions and an ambient temperature of -30°C. Various semiconductor air conditioners disclosed in Chinese patents 99254327.4, 99254326.6, 98200196.7, 97233665.6, 95233326.0, 95243423.7, and 94207062.3 use "heat pipes", water pumps, and coolants, which are mostly suitable for cooling devices, and in low temperature environments (such as- 30°C) is invalid.

Utility model content

In order to solve the problems in the prior art, the utility model provides a small-sized high-power split semiconductor air conditioner, which is used as an emergency spare part of the vehicle-mounted compressor-type air conditioner, and can monitor the air temperature in the vehicle-mounted storage and transportation box during fault maintenance. Make adjustments to provide effective supporting equipment for national key projects.

The technical scheme that the utility model adopts for solving the technical problem that exists in the known technology is:

A small high-power split-type semiconductor air conditioner, including an inside unit, an outside unit and a battery pack, is characterized in that: the inside unit and the outside unit are connected by outlet pipes and return pipes with quick connectors respectively, The outer machine is provided with an outer case for installing various components, and the wall of the outer case is provided with a socket for connecting the battery pack.

The utility model can also be realized by adopting the following technical measures:

The small high-power split-type semiconductor air conditioner is characterized in that: the inside unit connected to the outlet pipe and the return pipe is provided with an inside unit heat exchanger with an inside unit fan; the components installed in the outer case are Thermoelectric cooling water tank, circulating water pump, power control relay, PID temperature display controller and control switch.

The small high-power split-type semiconductor air conditioner is characterized in that: the thermoelectric cooling water tank includes a thermoelectric cooling component, a water tank body, and a radiator, and the thermoelectric cooling component is symmetrically installed on both sides of the water tank body. On the processed outer wall, a heat sink is installed on the hot surface of the thermoelectric cooling component, and a layer of heat-conducting silicone grease is uniformly coated between the hot surface of the thermoelectric cooling component and the heat sink, and the two opposite radiators, temperature difference The electric cooling assembly and the centrally located water tank are clamped and fixed as a whole, the cavity between the water tank and the radiator is provided with a thermal insulation layer, and a fan cover and a cooling fan are fixed on the radiator.

The small high-power split-type semiconductor air conditioner is characterized in that: the water tank body is an aluminum alloy cube with a movable plastic cover on the top and three screw holes on the bottom; the radiator is planed fin-shaped; The thermal insulation layer is polyurethane foaming agent.

The small high-power split-type semiconductor air conditioner is characterized in that: the three screw holes are respectively provided with a water inlet nozzle, a water outlet nozzle and a temperature measuring sensor.

The small high-power split-type semiconductor air conditioner is characterized in that: the water tank is provided with a heat-transfer working medium.

The small high-power split-type semiconductor air conditioner is characterized in that: the heat-transfer working medium is propanol heat-conducting oil.

The small high-power split-type semiconductor air conditioner is characterized in that: the PID temperature display controller is connected with a temperature measuring sensor.

The utility model has the advantages and positive effects: by adopting the split type, the machine inside the box is fixed in the storage and transportation box, and the machine outside the box is portable, placed outside the box, and connected with a heat pipe through a quick joint, which is convenient for quick assembly or disassembly ;The split-type semiconductor air conditioner adopts high-efficiency planing radiators, and the array of semiconductor cooling components adopts a high-efficiency design. The semiconductor thermoelectric cooling components are selected to work at the best power point. Small, light in weight, easy to move and carry, suitable for adjusting the air temperature in the vehicle storage box to keep the items in the box in a safe temperature range.

Description of drawings

Figure 1 is a schematic diagram of the distribution of the utility model small-sized high-power split-type semiconductor air conditioner;

Fig. 2 is a sectional view of a thermoelectric cooling water tank in a small-sized high-power split semiconductor air conditioner of the present invention;

Fig. 3 is a schematic diagram of electrical wiring in the utility model small-sized high-power split type semiconductor air conditioner.

The labels in the figure are: 1 is the thermoelectric cooling water tank, 2 is the PID temperature display controller, 3 is the circulating water pump, 4 is the power control relay, 5 is the control switch, 6 is the outer chassis, 7 is the outlet pipe, 8 is the return pipe, 9 is the heat exchanger of the box machine, 10 is the fan of the box machine, 11 is the thermoelectric cooling component, 12 is the water tank body, 13 is the radiator, 14 is the cooling fan, and 16 is the heat insulation layer , 17 is a fan cover, and 18 is a quick connector.

Detailed ways

In order to further understand the invention content, characteristics and effects of the present utility model, the following embodiments are listed hereby, and detailed descriptions are as follows in conjunction with the accompanying drawings:

Please refer to Figure 1-Figure 3: The small high-power split-type semiconductor air conditioner is composed of an inside unit, an outside unit and a battery pack, in which the middle and outer chassis 6 of the outside unit are used as the hub, and the rear side wall of the outer chassis 6 passes through a The water outlet pipe 7 and the water return pipe 8 of the quick connector 18 are connected to the heat exchanger 9 inside the cabinet with the fan 10 fixed on the cabinet, and the power socket on the front wall of the outer cabinet 6 is connected to the battery pack to form a small high-power split semiconductor air conditioner The distribution of the whole machine; a thermoelectric cooling water tank 1, a circulating water pump 3 and a power control relay 4 are installed inside the outer chassis 6, and a PID temperature display controller 2 is also installed on the front wall of the outer chassis 6, which are respectively the main power switch, the circulation Three control switches 5 of the input power switch of the pump switch and the power control relay 4; the water outlet 7 of the circulating water pump 3 is connected to the water inlet of the thermoelectric cooling water tank 1 through a section of rubber hose, the water inlet of the water pump 3 and the temperature difference electric The spout of the cold water tank 1; the PID temperature display controller 2 is composed of a single-chip circuit and a digital display panel. The single-chip circuit receives the temperature signal sampled by the temperature sensor and compares it with the set temperature value given by the user. Press "self-tuning" mode, output on-off voltage signal, control the output voltage of the power supply control relay 4, change the working state of the thermoelectric cooling assembly 11, and achieve the purpose of controlling the temperature of the working medium in the thermoelectric cooling water tank 1. The working medium is propanol heat-conducting oil. The propanol heat-conducting oil is passed through the pipeline by the circulation pump 3, circulates in the heat exchanger 9 of the box unit, and the air is stirred by the fan 10 of the box unit, so that the air in the box is controlled.

The thermoelectric cooling water tank 1 includes a thermoelectric cooling assembly 11, a water tank body 12, and a radiator 13; the water tank body 12 is made of aluminum alloy and is in a quadrangular shape, and three screw holes are processed at the bottom to facilitate installation of inlet and outlet nozzles and The temperature sensor, the two side walls of the thermoelectric cooling assembly 11 need to be finished to ensure flatness; the top of the water tank 12 is a movable plastic cover, which can be easily opened to fill with heat transfer oil, and is conducive to heat preservation; the temperature difference The electric cooling assembly 11 is symmetrically installed on the finished outer walls of both sides of the aluminum alloy water tank body 12, and a high-efficiency planed fin-shaped heat sink 13 is installed on the hot surface of the thermoelectric cooling assembly 11, and the Two pairs of opposite radiators 13, thermoelectric cooling components 11 and centrally located water tank 12 are clamped and fixed, avoiding thermal bypass between the hot and cold surfaces of the thermoelectric cooling components, and improving cooling efficiency; The cavity between the water tank body 12 and the radiator 13 is injected with polyurethane foaming agent to form a dense thermal insulation layer 16; the fan cover 17 and the cooling fan 14 are respectively fixed on the radiator 13.

The processing process of the thermoelectric cooling water tank 1 in the outer case 6 is as follows: cut a section of square tube aluminum alloy profiles with a wall thickness of 3mm, an outer cross section of 60mm×130mm, and a height of 300mm as the four walls of the water tank body 12, and process a piece of 54mm ×123mm×6mm alloy aluminum plate, three screw holes are processed on the plate, respectively 2-M12, M8; the aluminum plate is embedded in one end of the square tube and welded to the four walls to make the main body of the water tank, and install the water inlet nozzle, outlet nozzle, Sensor; use 6mm plastic to process a water tank cover, and buckle the cover on the upper mouth of the water tank; select 6 pieces of TEC1-12710 thermoelectric cooling components 11, and use high-quality heat-conducting adhesive to bond them on the two sides of the water tank with a width of 60mm. On each side wall, the cold surface of the thermoelectric cooling assembly 11 is closely attached to the middle part of the 60mm outer wall, three pieces on each side, with a distance of 32mm; a piece of high-efficiency planing type is placed on the hot surface of each thermoelectric cooling assembly 11 Fin-shaped radiator 13, the size of the radiator is 160mm×82mm×36mm, a 52mm×52mm square platform is processed on the substrate plane, and the surface finish is 3.2; a Φ4.5mm through hole is drilled in each of the four corners of the substrate, and four The connecting screw clamps and fixes the fin-shaped radiators 13 opposite to each other, so that the hot surface of the 50mm×50mm thermoelectric cooling assembly 11 is located in the center of the 52mm×52mm square platform, and a layer of Thermally conductive silicone grease to reduce thermal resistance; according to the way of 3 in parallel and 2 in series, solder and lead out the connection wires of 6 thermoelectric refrigeration components 11; The two end faces of the substrate are fixed to form a cavity, and polyurethane foaming agent is injected to form a dense heat insulation layer 16; two fan covers 17 equipped with cooling fans 14 are respectively fixed on the radiators on both sides On 13, a thermoelectric cooling water tank 1 is made; the heat exchanger 9 of the machine in the tank is selected from a commercially available LJ-1 type small radiator; the commercially available ND-8000 V1V1 type PID temperature display controller 2 is changed to a DC 12V power supply, It has two displays of measured temperature and set temperature, two controls of cooling and heating, output on-off voltage signal and self-tuning function; the power control relay 4 can turn on or off the battery according to the change of the control signal on-off The group supplies power for the thermoelectric cooling component 11, with a maximum output current of 15A; the circulating water pump 3 is a DC power supply type, with a flow rate of 8L/min; the thermoelectric cooling water tank 1 is installed inside the outer case 6, and the circulating water pump 3 is installed on the bottom plate of the outer case 6 Above, the water outlet 7 of the water pump 3 is connected to the water inlet of the thermoelectric cooling water tank 1 through a section of rubber hose, and the water inlet of the water pump 3 and the water outlet of the thermoelectric cooling water tank 1 are respectively connected with rubber hoses passing through the rear panel of the outer chassis 6 , connected with the supervisor; the PID temperature display controller 2 is embedded in the square opening on the front panel of the outer chassis 6, and a power socket and three control switches 5 are installed on the front panel of the outer chassis 6, which are respectively the main power switch and the circulation pump switch 1. The input power switch of the power control relay 4; the power control relay 4 is installed on the partition inside the outer chassis 6.

The heat exchanger 9 in the box of the small-sized high-power split type semiconductor air conditioner is fixed on the inwall of the vehicle-mounted storage and transportation box afterbody, and keeps about 20mm ventilation interval; the machine fan 10 in the box is fixed on the heat exchanger 9 with screws.

The working principle of the small high-power split-type semiconductor air conditioner is as follows: insert the 12V power supply of the battery pack into the power socket on the panel, press the main power switch to connect the DC 12V power supply, and the PID temperature display controller 2 will conduct self-test when it is powered on. Start to work, display the measured temperature value and the preset temperature control value; press the input power switch of the power control relay 4 in turn to provide DC power for the thermoelectric cooling component 11, and the temperature of the cold surface of the thermoelectric cooling component 11 drops , the temperature of the aluminum wall of the water tank drops accordingly, thereby cooling the heat-conducting oil in the water tank; then press the switch of the circulation pump, the circulation pump 3 is energized to work, driving the heat-conducting oil in the water tank to circulate along the pipeline, and through the The machine heat exchanger 9 in the box of the machine fan 10 takes away the heat of the air in the box; the PID temperature display controller 2 internal single-chip circuit accepts the temperature signal sampled by the temperature sensor, compares it with the set temperature value given by the user, and presses " "self-tuning" mode, output the on-off voltage signal to control the output voltage of the power control relay 4, change the working state of the thermoelectric refrigeration assembly 11, and achieve the purpose of controlling the temperature of the working medium in the water tank 1; the thermoelectric refrigeration assembly 11 The heat of the hot surface is drawn out by the cooling fan 14 through the fins of the radiator 13 and discharged to the surrounding space.

A battery pack or a switching power supply is used to supply power to a small high-power split-type semiconductor air conditioner. When the thermoelectric cooling assembly 11 is supplied with forward power, the cold surface of the thermoelectric cooling assembly 11 is refrigerated, as the temperature of the heat transfer oil in the water tank drops, and the heat of the air in the tank is taken away; when the thermoelectric cooling assembly 11 reverses When supplying power to the cabinet, the direction of heat transfer is opposite, increasing the temperature of the air in the box.

Claims (8)

1. A small high-power split-type semiconductor air conditioner, including an in-box unit, an out-of-box unit and a battery pack, characterized in that there are outlet pipes and return pipes with quick connectors respectively between the in-box unit and the out-of-box unit connection, the external machine is provided with an external case for installing various components, and the wall of the external case is provided with a socket for connecting the battery pack. 2. The small-sized high-power split-type semiconductor air conditioner according to claim 1, characterized in that: the inside unit connected to the outlet pipe and the return pipe is provided with an inside unit heat exchanger with an inside unit fan; The components installed in the external chassis are thermoelectric cooling water tank, circulating water pump, power control relay, PID temperature display controller and control switch. 3. The small high-power split-type semiconductor air conditioner according to claim 2, characterized in that: the thermoelectric cooling water tank includes a thermoelectric cooling assembly, a water tank body, and a radiator, and the thermoelectric cooling assembly is symmetrical Installed on the finished outer wall on both sides of the water tank, the heat sink is installed on the hot surface of the thermoelectric cooling component, and a layer of heat-conducting silicone grease is evenly coated between the hot surface of the thermoelectric cooling component and the heat sink, and the screw will The radiators facing each other, the thermoelectric cooling components and the water tank located in the center are clamped and fixed as a whole. The cavity between the water tank and the radiator is provided with a heat insulation layer. Secure the fan cover and cooling fan. 4. The small-sized high-power split-type semiconductor air conditioner according to claim 3, characterized in that: the water tank is an aluminum alloy cube with a movable plastic cover on the top and three screw holes on the bottom; the radiator is Planed fin shape; the heat insulation layer is polyurethane foaming agent. 5. The small high-power split-type semiconductor air conditioner according to claim 4, characterized in that: the three screw holes are respectively provided with a water inlet nozzle, a water outlet nozzle and a temperature measuring sensor. 6. The small high-power split-type semiconductor air conditioner according to claim 3, wherein a heat-transfer working medium is arranged in the water tank. 7. The small high-power split-type semiconductor air conditioner according to claim 6, characterized in that: the heat transfer working medium is propanol heat transfer oil. 8. The small high-power split-type semiconductor air conditioner according to claim 2 or 5, wherein the PID temperature display controller is connected to a temperature sensor.

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