CN205580059U - Energy -saving on -vehicle mini -bar - Google Patents

Abstract

The utility model discloses an energy-saving vehicle-mounted small refrigerator. The device uses semiconductor refrigeration technology combined with single-chip intelligent control technology to operate intermittently. The electromagnetic relay, semiconductor refrigeration sheet and cooling fan work intermittently under the control of the single-chip computer to save power. The cooling system consists of cooling water pipes, cooling water pipe sleeves, cooling fans, and water cooling blocks. This cooling method combines water cooling and air cooling. Compared with simple air cooling, it reduces the temperature of the hot end of semiconductor devices and improves semiconductor refrigeration. cooling efficiency of the chip. This device cools the items put in it, and under the action of the insulation material of the refrigerator body, the cooling capacity in the refrigerating chamber loses slowly, and can keep the low temperature in the refrigerating chamber for a long time, which is a semi-conductor intermittent energy-saving working mode Conditions are provided.

Description

An energy-saving car refrigerator

technical field

The utility model relates to the field of heat dissipation and the field of semiconductor refrigeration, the most important device of which is a combined heat dissipation of water cooling and air cooling and a semiconductor refrigeration device.

Background technique

The cooling method of the common car refrigerators in the market is to use semiconductor refrigeration chips to cool. Semiconductor refrigeration technology has the advantages of small size, no noise in refrigeration, no leakage of refrigeration medium, and easy to carry. It can be used in small-power, small-volume refrigeration devices. , so semiconductor refrigeration technology can meet the demand for refrigeration in such a small environment as a car.

The semiconductor cooling chip has a hot end and a cold end when it is powered on. The hot end continuously absorbs the energy of the air around the hot end and transmits it to the cold end for release. Therefore, in order for the semiconductor cooling chip to operate effectively, it must be installed on the cold end. cooling system.

The heat dissipation coefficient of water-cooled heat dissipation is 100-1000 times that of air-cooled heat dissipation. The use of water-cooled heat dissipation mode at the cold end of the semiconductor refrigeration sheet is conducive to improving the heat dissipation power of the cold end, and improving the cooling coefficient and cooling capacity of the semiconductor refrigeration sheet.

Although the heat dissipation coefficient of air-cooled heat dissipation is not high, the air-cooled heat dissipation mode is the best way to exchange heat between the airtight heat dissipation medium and the atmosphere.

The single-chip microcomputer inputting the preset program can control the device to run according to the preset program, and this method helps to save electric energy.

Contents of the invention

The purpose of the utility model is to provide an energy-saving vehicle-mounted small refrigerator with intermittent operation and high refrigeration efficiency.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the single-chip microcomputer controls the electromagnetic relay to be closed and disconnected at the time specified by the built-in program, so that the semiconductor refrigerating sheet works in an intermittent mode, and the heat at the hot end of the semiconductor refrigerating sheet is absorbed by the heat in the water cooling block. The cooling water absorbs and automatically forms a self-circulation due to the density difference. When the hot water flows to the finned tube radiator area, it is cooled by the wind generated by the small fan and then returns to the water block to prepare for the next cooling.

Furthermore, the voltage regulator in the refrigerator converts the external input voltage into a constant 6v direct current to supply power to the single-chip microcomputer and the semiconductor cooling chip, and the power supply between the semiconductor cooling chip and the power supply is also controlled by the electromagnetic relay controlled by the single-chip microcomputer. The program makes the electromagnetic relay work in an intermittent mode of closing for 5 minutes and opening for 15 minutes.

Further, when the electromagnetic relay is closed, the power supply line between the power supply and the semiconductor cooling chip is connected, and the semiconductor cooling chip cools the refrigeration chamber for 5 minutes. When the battery relay is disconnected, the power supply line between the power supply and the semiconductor cooling chip After being cut off, the semiconducting cooling sheet stops working for 15 minutes, and then the semiconducting cooling sheet continues to work according to this intermittent cycle.

Furthermore, the heat at the hot end of the semiconductor refrigeration sheet is absorbed by the cooling water in the water cooling block, the temperature of the cooling water rises and a density difference is formed in the circulating water cooling tube, resulting in the phenomenon that the hot water rises and the cold water sinks, and the hot cooling water enters the finned tube The tubes of the radiator are cooled by the wind flowing through them, and the water temperature drops and flows back into the water cooling block for the next cooling cycle.

Further, cooling fan is also under the control of a single-chip microcomputer in the single-chip unit (16) to rotate 5 minutes simultaneously, stops the intermittent pattern of 15 minutes to heat the hot end.

Compared with the prior art, the beneficial effects of the utility model are:

1. The intermittent working mode is adopted, which saves the power supply of the car and reduces the working noise.

2. Compared with the common air-cooled heat dissipation mode of semiconductors, the water-cooled heat dissipation method adopted by the cold end of the semiconductor refrigeration sheet in this device improves the heat dissipation coefficient of the hot end and increases the cooling efficiency of the device, so that the device can be used in conjunction with air-cooled The heat-dissipating semiconductor cooling sheet can obtain greater cooling capacity under the same power supply voltage, better cooling effect, and more energy saving.

3. Compared with the common semiconductor refrigeration small refrigerators in the market, this device adds intelligent control technology, and the single-chip microcomputer implanted with a specific program controls the closing and opening of the electromagnetic relay, and then controls the working status of the semiconductor refrigeration sheet.

4. Under the effect of the insulation material of the refrigerator body, the cooling loss in the refrigeration chamber is slow, and the low temperature in the refrigeration chamber can be maintained for a long time, which provides conditions for the semiconductor intermittent energy-saving working mode.

Description of drawings

Figure 1 is a structural schematic diagram of an energy-saving car refrigerator

Among them, 1-refrigerator shell, 2-dust-proof metal mesh, 3-cooling water pipe, 4-radiating water pipe sleeve, 5-metal sheet, 6-rotating hinge, 7-refrigerator cover, 8-refrigerator cover magnet, 9-refrigerator body Magnet, 10-fastening screw, 11-semiconductor cooling plate, 12-water cooling block, 13-refrigerator base, 14-water cooling block fixing piece, 15-electromagnetic relay, 16-single-chip unit, 17-voltage regulator, 18-power supply Plug, 19-fan support frame, 20-cooling fan.

detailed description

Below in conjunction with accompanying drawing and specific embodiment, the utility model is further described.

The 1-refrigerator shell and the 7-refrigerator cover form the shell of the vehicle-mounted refrigerator. The 7-refrigerator cover is integrated with the 1-refrigerator shell through the 6-rotation hinge and can rotate around the 6-rotation hinge. The 7-refrigerator cover The built-in 8-refrigerator cover magnet on the other side is combined with the 9-refrigerator body magnet built in the 1-refrigerator shell through magnetic force, so that the 7-refrigerator cover can fit precisely on the right side of the 1-refrigerator shell.

The cold end of the 11-semiconductor cooling sheet is attached to the 5-metal sheet, the hot end of the 11-semiconductor cooling sheet is closely attached to the 12-water cooling block, and the 10-fastening screw passes through the 5-metal sheet, 13- The vertical plate of the refrigerator base and the 14-water cooling block fixed plate are tightened with nuts, so the 5-metal sheet, 11-semiconductor cooling plate and 12-water cooling block are tightly connected under the fastening action of the 10-fastening screw.

18-power plug imports external electric energy into 17-voltage regulator and converts it into a stable 6v direct current. The 6v direct current supplies power for 16-single-chip unit, 11-semiconductor cooling chip, 15-electromagnetic relay and 20-cooling fan, 16 -The program in the single-chip unit controls the 15-electromagnetic relay to work in an intermittent mode of closing for 5 minutes and disconnecting for 15 minutes. 15-When the electromagnetic relay is closed, 11-The power supply line of the semiconductor refrigeration chip is unblocked. 15-When the electromagnetic relay is disconnected, 11- The power supply circuit of the semiconductor refrigerating sheet is also disconnected, and the semiconductor refrigerating sheet stops working.

The 20-cooling fan rotates for 5 minutes under the control of a single-chip microcomputer in the 16-single-chip unit, and stops the mode operation of 15 minutes.

When the 11-semiconductor refrigerating sheet is performing refrigeration work, the air temperature of the refrigerating chamber on the right side of 5-metal sheet decreases, and the temperature of the hot end of 11-semiconductor refrigerating sheet rises, which is close to the 12-water cooling block at the hot end of 11-semiconductor refrigerating sheet The temperature of the cooling water rises due to the absorption of heat from the hot end of the 11-semiconductor refrigeration sheet, and the hot cooling water that has absorbed heat forms a density difference in the closed circulating water channel composed of the 14-water block fixed piece and 3-cooling water pipe to float up The upper end of the 3-cooling water pipe is cooled by the wind produced by the fan. When the hot water floats, the cooling water at the lower end of the 3-cooling water pipe fills the water cooling fast and continues to absorb the heat from the hot end of the 11-semiconductor cooling sheet.

The 3-cooling water pipe is mainly divided into the hot water area where the upper end zigzags through the 4-radiation water pipe sleeve and the cooling water storage area where the lower end is straight. Reduced, the cooling water after the temperature is lowered flows down to the cooling water storage area in the straight section of the lower end of the cooling water pipe under the action of the density difference to prepare for the next heat absorption, 3-the winding water pipe at the upper end of the cooling water pipe, 4-radiating water pipe The sleeve and the fan form a finned air-cooled radiator. The lower end of the 4-cooling water pipe sleeve is longer and contacts with the horizontal plate of the 13-refrigerator base to support the 3-cooling water pipe, and increases the heat dissipation area of the 3-cooling water pipe. Improved cooling effect.

The 20-cooling fan is supported and fixed in the center of the 2-dust-proof metal mesh by four X-shaped 19-fan support frames.

1-Insulation material is pasted inside the refrigerator shell to make the cooling capacity of the refrigeration chamber under its action 1. An energy-saving vehicle-mounted small refrigerator, characterized in that: it consists of a refrigerator shell (1), a dust-proof metal mesh (2), a cooling water pipe ( 3), cooling water pipe sleeve (4), metal sheet (5), rotating hinge (6), refrigerator cover (7), refrigerator cover magnet (8), refrigerator body magnet (9), fastening screw (10), Semiconductor cooling plate (11), water cooling block (12), refrigerator base (13), water cooling block fixing piece (14), electromagnetic relay (15), single chip unit (16), voltage regulator (17), power plug (18 ), a fan support frame (19), and a cooling fan (20); wherein the refrigerator shell (1) and the refrigerator cover (7) form the shell of the vehicle-mounted refrigerator, and the refrigerator cover (7) is connected to the refrigerator shell ( 1) It is connected into one body and can be rotated around the hinge (6). The refrigerator cover magnet (8) built on the other side of the refrigerator cover (7) and the refrigerator body magnet (9) built in the refrigerator shell (1) pass through the magnetic force The functions are combined so that the refrigerator cover (7) can be accurately attached to the right side of the refrigerator casing (1), the cold end of the semiconductor refrigeration sheet (11) is attached to the metal sheet (5), and the semiconductor refrigeration sheet (11) The hot end of the hot end is closely attached to the water cooling block (12), and the fastening screw (10) passes through the metal sheet (5), the vertical plate of the refrigerator base (13) and the water cooling block fixing piece (14) in turn, and then tightens it with a nut, so The thin metal sheet (5), the semiconductor cooling sheet (11) and the water cooling block (12) are tightly connected under the fastening action of the fastening screw (10), and the cooling water pipe (3) zigzags through the cooling water pipe sleeve (4) and connects with the The cooling fan (20) forms a finned radiator, the cooling water pipe (3) and the water cooling block (12) form a closed circulating water circuit; the power plug (18) converts the external electric energy into the voltage regulator (17) The direct current of 6v, the direct current of 6v is the single-chip unit (16), the semiconductor cooling chip (11), the electromagnetic relay (15) and the cooling fan (20) power supply, the program in the single-chip unit (16) controls the electromagnetic relay (15) and Closed for 5 minutes and disconnected for 15 minutes in intermittent mode, when the electromagnetic relay (15) is closed, the power supply line of the semiconductor refrigeration sheet (11) is unblocked, and when the electromagnetic relay (15) is disconnected, the power supply circuit of the semiconductor refrigeration sheet (11) is also disconnected , the semiconductor cooling chip stops working; the heat dissipation fan (20) is supported and fixed on the center of the dust-proof metal mesh (2) by four X-shaped fan support frames (19), and the water at the upper end of the cooling water pipe (3) is air-cooled and radiated , the heat of the hot end of the semiconductor refrigeration sheet is absorbed by the cooling water in the water cooling block, the temperature of the cooling water rises and a density difference is formed in the circulating water cooling pipe, resulting in the phenomenon that the hot water rises and the cold water sinks, and the hot cooling water enters the finned tube radiator The pipe is cooled by the wind flowing through, and the water temperature drops and flows back into the water cooling block to carry out the cooling work of the next cycle, and the cooling fan also rotates for 5 minutes under the control of a single-chip microcomputer in the single-chip unit (16), and stops for 15 minutes. minute mode operation .

The loss is slow, and the low temperature in the refrigeration room can be kept for a long time, which provides conditions for the intermittent energy-saving work mode of the semiconductor.

The utility model discloses an energy-saving vehicle-mounted small refrigerator. The device uses semiconductor refrigeration technology combined with single-chip intelligent control technology to operate intermittently. The electromagnetic relay, semiconductor refrigeration sheet and cooling fan work intermittently under the control of the single-chip computer to save power. The cooling system consists of cooling water pipes, cooling water pipe sleeves, cooling fans, and water cooling blocks. This cooling method combines water cooling and air cooling. Compared with simple air cooling, it reduces the temperature of the hot end of semiconductor devices and improves semiconductor refrigeration. cooling efficiency of the chip. This device cools the items put in it, and under the action of the insulation material of the refrigerator body, the cooling capacity in the refrigerating chamber loses slowly, and can keep the low temperature in the refrigerating chamber for a long time, which is a semi-conductor intermittent energy-saving working mode Conditions are provided.

Claims (1)

1. an energy-saving vehicle-mounted mini-bar, it is characterized in that: by outcase of refrigerator (1), dust-proof wire netting (2), cooling water pipe (3), heat dissipation pipe's nest plate (4), foil (5), turning joint (6), refrigerator lid (7), refrigerator lid Magnet (8), refrigerator magnet body (9), trip bolt (10), semiconductor chilling plate (11), water-cooled block (12), refrigerator base (13), water-cooled block stator (14), electromagnetic relay (15), singlechip group (16), pressure regulator (17), attaching plug (18), support frame for fan (19), radiator fan (20) forms；nullWherein outcase of refrigerator (1) and refrigerator lid (7) composition car refrigerator shell，Refrigerator lid (7) is connected with outcase of refrigerator (1) by turning joint (6) and can be rotated centered by turning joint (6)，Built-in refrigerator lid Magnet (8) of refrigerator lid (7) opposite side is combined by magneticaction with the refrigerator magnet body (9) being built in outcase of refrigerator (1)，Allow refrigerator lid (7) that outcase of refrigerator (1) right side can be fitted in accurately，The cold end of semiconductor chilling plate (11) is fitted on foil (5)，The hot junction of semiconductor chilling plate (11) is close to water-cooled block (12)，Trip bolt (10) sequentially passes through foil (5)、Nut is used after the riser of refrigerator base (13) and water-cooled block stator (14)，Then foil (5)、Semiconductor chilling plate (11) is completely embedded under the fastening effect of trip bolt (10) with water-cooled block (12)，Cooling water pipe (3) is tortuous to be passed heat dissipation pipe's nest plate (4) and forms fin radiator with radiator fan (20)，Cooling water pipe (3) and water-cooled block (12) constitute sealing and circulating water water route；Extraneous electric energy is imported the unidirectional current being converted into stable 6v in pressure regulator (17) by attaching plug (18), the unidirectional current of 6v is singlechip group (16), semiconductor chilling plate (11), electromagnetic relay (15) is powered with radiator fan (20), programme-control in singlechip group (16) electromagnetic relay (15) to close the discontinuous mode operation disconnecting 15 minutes for 5 minutes, during electromagnetic relay (15) Guan Bi, the supply line of semiconductor chilling plate (11) is unimpeded, when electromagnetic relay (15) disconnects, the supply line of semiconductor chilling plate (11) also disconnects, semiconductor chilling plate quits work；The center that radiator fan (20) is supported and fixed on dust-proof wire netting (2) by four support frame for fans (19) in X-shape carries out wind-cooling heat dissipating to the water of the upper end of cooling water pipe (3), the cooling water that the heat in semiconductor chilling plate hot junction is water cooled in block absorbs, cooler-water temperature rises and is formed in circulating water pipe density contrast and produces the phenomenon that hot water rising cold water sinks, the cooling water of heat enters the air cooling flowed through in the pipe of finned tubular radiator, water temperature drop is back to carry out in water-cooled block the cooling work of subsequent cycle again, and to rotate 5 minutes under the control of a radiator fan also single-chip microcomputer in singlechip group (16), stop the mode operation of 15 minutes.