A high-efficiency semiconductor refrigerator with precise temperature control

Abstract

The present invention discloses a high-efficiency semiconductor refrigerator capable of precise temperature control in the technical field of semiconductor refrigerators, comprising a heat conducting plate; a semiconductor cooling sheet; a cooling block; heat sinks are evenly arranged on the bottom of the heat conducting plate; installation boxes are arranged on both sides of the heat conducting plate, air inlet nets are arranged on the opposite sides of the two groups of installation boxes, and exhaust nets are arranged on the sides of the two groups of installation boxes away from each other; motors are arranged in the two groups of installation boxes, and fan blades 1 are arranged on the output shafts of the two groups of motors; when the fan blades 1 rotate, the bevel gear 2 drives the bevel gear 1 to rotate, so that the connecting shaft rotates accordingly, and then the fixed shaft can rotate on the fixed bearing by the rotation of the pulley 2 and the pulley 1, so that the installation plate drives the gear to rotate through the inclined rod, and the rotating shaft drives the fan blades 2 in the connecting groove to rotate through the gears and the supporting bearing, so that the air is blown by the inclined fan blades 2, so as to improve the temperature transfer efficiency of the cooling block.

Description

Technical Field

[0001] The present invention relates to the technical field of semiconductor refrigerators, and in particular to a high-efficiency semiconductor refrigerator capable of accurately controlling temperature. Background Art

[0002] Semiconductor coolers are devices that use the thermal-electric effect of semiconductors to generate cooling, also known as thermoelectric coolers. When two different metals are connected by a conductor and a direct current is applied, the temperature at one junction decreases and the temperature at the other junction increases.

[0003] Semiconductor refrigerators are used for precise temperature control of electrical appliances. The current semiconductor refrigerators have low heat transfer efficiency, resulting in excessive consumption of electricity. In addition, the heat sink fins used for heat dissipation at the hot end are prone to dust accumulation, which affects heat dissipation. The dissipated heat flows upward and affects the temperature transfer of the cooling block. Therefore, we propose a high-efficiency semiconductor refrigerator that can precisely control the temperature. Summary of the invention

[0004] The object of the present invention is to provide a high-efficiency semiconductor refrigerator capable of precise temperature control, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a high-efficiency semiconductor refrigerator with precise temperature control, comprising: a heat conduction plate; a semiconductor refrigeration sheet; a cooling block; heat sinks are evenly arranged on the bottom of the heat conduction plate; installation boxes are arranged on both sides of the heat conduction plate, air inlet nets are arranged on the opposite sides of the two groups of installation boxes, and exhaust nets are arranged on the sides of the two groups of installation boxes away from each other; motors are arranged in the two groups of installation boxes, and fan blades are arranged on the output shafts of the two groups of motors; a dust removal component is arranged on the heat sink; and temperature transfer acceleration components are arranged on both sides of the cooling block.

[0006] As a preferred solution of the high-efficiency semiconductor refrigerator with precise temperature control described in the present invention, the temperature transfer acceleration component includes a connecting groove arranged on the cooling block, the connecting groove passes through the inclined rotating shaft, and the top of the rotating shaft points to the cooling block, the top of the rotating shaft is provided with fan blade 2, the bottom end of the rotating shaft passes through the mounting box and is rotatably connected to the support bearing, and the support bearing is arranged in the mounting box, a gear is sleeved on the rotating shaft, and the gear is connected to the driving device.

[0007] As a preferred solution of the high-efficiency semiconductor refrigerator with precise temperature control described in the present invention, the driving device includes a fixed bearing arranged in a mounting box, a fixed shaft is rotatably connected to the fixed bearing, a mounting plate is arranged on the fixed shaft, inclined rods are evenly arranged in an annular pattern on the top of the mounting plate, and the inclined rods are meshingly connected to the gears, and a transmission structure connected to the output shaft of the motor is arranged on the fixed shaft.

[0008] As a preferred solution of the high-efficiency semiconductor refrigerator with precise temperature control described in the present invention, the transmission structure includes a pulley 1 sleeved on a fixed shaft, the pulley 1 is connected to the pulley 2 through a belt, the pulley 2 is sleeved on a connecting shaft, the top end of the connecting shaft is rotatably connected to the inner wall of the mounting box through a bearing, the bottom end of the connecting shaft is sleeved with a bevel gear 1, the bevel gear 1 is meshedly connected with the bevel gear 2, and the bevel gear 2 is sleeved on the output shaft of the motor.

[0009] As a preferred solution of the high-efficiency semiconductor refrigerator capable of precise temperature control described in the present invention, blowing pipes are evenly arranged on the installation box.

[0010] As a preferred solution of the high-efficiency semiconductor refrigerator with precise temperature control described in the present invention, one end of the blowing pipe is opposite to the fan blade, and the other end of the blowing pipe passes through the top of the installation box and points to the end away from the semiconductor refrigeration plate.

[0011] As a preferred solution of the high-efficiency semiconductor refrigerator capable of precise temperature control described in the present invention, one end of the blowing tube located in the installation box is funnel-shaped.

[0012] As a preferred solution of the high-efficiency semiconductor refrigerator with precise temperature control described in the present invention, the dust removal component includes a fixed frame, scraper strips are evenly arranged on the inner wall of the fixed frame, and the fixed frame and the scraper strips are both fitted and connected to the heat sink, the fixed frame is screwed on the screw rod, the top of the screw rod is connected to the output shaft of the forward and reverse motor, and the forward and reverse motors are arranged on the heat conduction plate, and the bottom of the heat conduction plate is provided with a vertical rod slidably connected to the fixed frame.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: when the fan blade one rotates, the bevel gear two drives the bevel gear one to rotate, so that the connecting shaft follows the rotation, and then the fixed shaft can rotate on the fixed bearing through the rotation of the pulley two and the pulley one, so that the mounting plate drives the gear to rotate through the inclined rod, and the rotating shaft drives the fan blade two in the connecting groove to rotate through the gear and the supporting bearing, so that air is blown through the inclined fan blade two, which is convenient for the cooling block to transfer temperature from bottom to top, thereby improving the temperature transfer efficiency of the cooling block; the hot air discharged from the exhaust net flows upward after being discharged, and in order to avoid affecting the cooling of the cooling block, the blowing pipes are evenly arranged to blow multiple high-speed airflows on the side of the exhaust net, so that the hot air blown out by the exhaust net is blown to a farther distance and the impact is reduced; the fixed frame and the scraper are moved back and forth on the heat sink, so that the attached dust is removed to avoid affecting the heat dissipation efficiency of the heat sink. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of a high-efficiency semiconductor refrigerator capable of precise temperature control according to the present invention;

[0015] Figure 2 It is a partial structural schematic diagram of a high-efficiency semiconductor refrigerator capable of precise temperature control according to the present invention;

[0016] Figure 3 This is a schematic diagram of the blowing pipe structure of a high-efficiency semiconductor refrigerator capable of precise temperature control according to the present invention;

[0017] Figure 4 It is a bottom view schematic diagram of the dust removal component structure of a high-efficiency semiconductor refrigerator capable of precise temperature control according to the present invention.

[0018] In the figure: 1. heat conduction plate; 2. semiconductor refrigeration plate; 3. cooling block; 4. heat sink; 5. installation box; 6. air inlet net; 7. exhaust net; 8. motor; 9. fan blade one; 10. connecting groove; 11. rotating shaft; 12. fan blade two; 13. supporting bearing; 14. gear; 15. fixed bearing; 16. fixed shaft; 17. installation plate; 18. inclined rod; 19. pulley one; 20. pulley two; 21. connecting shaft; 22. bevel gear one; 23. bevel gear two; 24. blowing pipe; 25. fixed frame; 26. scraper. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Example 1

[0021] Reference Figures 1 to 4 A highly efficient semiconductor refrigerator with precise temperature control comprises a heat conducting plate 1; connecting the hot end of a semiconductor cooling plate 2 to the heat conducting plate 1; a cooling block 3 arranged at the cold end of the semiconductor cooling plate 2; heat sinks 4 are evenly arranged at the bottom of the heat conducting plate 1; mounting boxes 5 are arranged on both sides of the heat conducting plate 1, air inlet nets 6 are arranged on opposite sides of the two sets of mounting boxes 5, and exhaust nets 7 are arranged on the sides of the two sets of mounting boxes 5 away from each other; motors 8 are arranged in the two sets of mounting boxes 5, and fan blades 9 are arranged on the output shafts of the two sets of motors 8 for dissipating heat from the heat sink 4; a dust removal component is arranged on the heat sink 4; and a temperature transfer acceleration component is arranged on both sides of the cooling block 3.

[0022] The temperature transfer acceleration component includes a connecting groove 10 arranged on the cooling block 3. The connecting groove 10 can separate the fan blade 2 12 to reduce the effect of the hot air drawn by the fan blade 2 12 when the fan blade 2 rotates on the cooling block 3. The connecting groove 10 passes through the inclined rotating shaft 11, and the top of the rotating shaft 11 points to the cooling block 3. The top of the rotating shaft 11 is provided with the fan blade 2 12. The bottom end of the rotating shaft 11 passes through the installation box 5 and is rotatably connected with the support bearing 13, and the support bearing 13 is arranged in the installation box 5. The rotating shaft 11 drives the fan blade 2 12 in the connecting groove 10 to rotate, so that the efficiency of the temperature transfer of the cooling block 3 from bottom to top can be accelerated by blowing air through the inclined fan blade 2 12. In order to make the rotating shaft 11 rotate, a gear 14 is sleeved on the rotating shaft 11, and the gear 14 is connected to the driving device.

[0023] The driving device includes a fixed bearing 15 arranged in the installation box 5, and a fixed shaft 16 is rotatably connected to the fixed bearing 15, and a mounting plate 17 is arranged on the fixed shaft 16. The top of the mounting plate 17 is evenly annularly arranged with inclined rods 18, and the inclined rods 18 are meshed and connected with the gear 14. When the fixed shaft 16 rotates, the mounting plate 17 drives the gear 14 to rotate through the inclined rods 18, and the rotating shaft 11 rotates through the gear 14 and the support bearing 13. A transmission structure connected to the output shaft of the motor 8 is arranged on the fixed shaft 16.

[0024] The transmission structure includes a pulley 19 sleeved on the fixed shaft 16, the pulley 19 is connected to the pulley 20 through a belt, the pulley 20 is sleeved on the connecting shaft 21, the top of the connecting shaft 21 is rotatably connected to the inner wall of the mounting box 5 through a bearing, the bottom end of the connecting shaft 21 is sleeved with a bevel gear 1 22, the bevel gear 1 22 is meshed and connected with the bevel gear 2 23, the bevel gear 23 is sleeved on the output shaft of the motor 8, when the motor 8 is working, the bevel gear 2 23 drives the bevel gear 1 22 to rotate, so that the connecting shaft 21 rotates accordingly, and then the fixed shaft 16 can rotate on the fixed bearing 15 through the rotation of the pulley 2 20 and the pulley 1 19.

[0025] The hot air exhausted by the exhaust net 7 flows upward after being exhausted. In order to avoid affecting the cooling of the cold conduction block 3, blowing pipes 24 are evenly arranged on the installation box 5, and one end of the blowing pipe 24 is opposite to the fan blade 9, and the other end of the blowing pipe 24 passes through the top of the installation box 5 and points to the end away from the semiconductor refrigeration plate 2. In this way, multiple high-speed airflows can be blown out on the upper side of the exhaust net 7, which is convenient for blowing the hot air blown out by the exhaust net 7 to a farther distance, thereby reducing the impact on the cold conduction block 3.

[0026] The dust removal assembly includes a fixed frame 25, on the inner wall of which scraper strips 26 are evenly arranged, and the fixed frame 25 and the scraper strips 26 are both closely connected to the heat sink 4, and the fixed frame 25 is screwed onto the screw rod, so that the top end of the screw rod is connected to the output shaft of the forward and reverse motor, and the forward and reverse motor is arranged on the heat conducting plate 1, and a vertical rod slidably connected to the fixed frame 25 is arranged at the bottom of the heat conducting plate 1, which can guide the movement of the fixed frame 25, and the screw rod can be driven by the forward and reverse motor to rotate forward and reverse, so that the fixed frame 25 and the scraper strip 26 can move back and forth on the heat sink 4, so as to remove the attached dust and avoid affecting the heat dissipation efficiency of the heat sink 4.

[0027] Example 2

[0028] Reference Figure 1 , so that one end of the blowing pipe 24 located in the installation box 5 is funnel-shaped, so as to facilitate the entry of more hot air.

[0029] The rest of the structure is the same as that of Example 1.

[0030] Usage process: Power on the semiconductor refrigeration sheet 2, so that the cooling block 3 can transfer heat and cool, and the heat is extracted through the heat conduction plate 1, and dissipated through the heat sink 4. The fan blade 9 is driven by the motor 8 to rotate, so that the heat on the heat sink 4 enters the installation box 5 through the air inlet net 6 and is discharged through the exhaust net 7;

[0031] When the fan blade 1 9 rotates, the bevel gear 23 drives the bevel gear 1 22 to rotate, so that the connecting shaft 21 rotates accordingly, and then the fixed shaft 16 rotates on the fixed bearing 15 through the pulley 20 and the pulley 19, so that the mounting plate 17 drives the gear 14 to rotate through the inclined rod 18, and the rotating shaft 11 drives the fan blade 2 12 in the connecting groove 10 to rotate through the gear 14 and the supporting bearing 13, so that the inclined fan blade 2 12 blows air, which can improve the heat transfer efficiency of the cooling block 3;

[0032] The hot air discharged from the exhaust net 7 flows upward after being discharged. In order to avoid affecting the cooling of the cooling block 3, the blowing pipes 24 are evenly arranged to blow multiple high-speed airflows on the upper side of the exhaust net 7, so as to blow the hot air blown from the exhaust net 7 to a farther place and reduce the impact;

[0033] The screw rod is driven to rotate by the forward and reverse motors, so that the fixing frame 25 and the scraper strip 26 can move back and forth on the heat sink 4, so as to remove the attached dust and avoid affecting the heat dissipation efficiency of the heat sink 4.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A highly efficient semiconductor refrigerator capable of precise temperature control, characterized in that: include, Heat conducting plate (1); A semiconductor refrigeration sheet (2), wherein a hot end of the semiconductor refrigeration sheet (2) is connected to a heat conducting plate (1); A cooling block (3), wherein the cooling block (3) is arranged on the cold end of the semiconductor cooling sheet (2); The bottom of the heat conducting plate (1) is evenly provided with heat sinks (4); Both sides of the heat conducting plate (1) are provided with mounting boxes (5), opposite sides of the two groups of mounting boxes (5) are provided with air inlet nets (6), and the sides of the two groups of mounting boxes (5) away from each other are provided with air exhaust nets (7); The two sets of installation boxes (5) are both provided with motors (8), and the output shafts of the two sets of motors (8) are both provided with fan blades (9); A dust removal component is provided on the heat sink (4); Both sides of the cooling block (3) are provided with a heat transfer acceleration component, the heat transfer acceleration component comprising a connecting groove (10) arranged on the cooling block (3), the connecting groove (10) passes through a tilted rotating shaft (11), and the top of the rotating shaft (11) points to the cooling block (3), the top of the rotating shaft (11) is provided with a second fan blade (12), the bottom end of the rotating shaft (11) passes through the installation box (5) and is rotatably connected to a support bearing (13), and the support bearing (13) is arranged in the installation box (5), a gear (14) is sleeved on the rotating shaft (11), and the gear (14) is connected to a driving device, the driving device comprises a fixed bearing (15) arranged in the installation box (5), the fixed bearing (15) is rotatably connected to a fixed shaft (16), and the fixed shaft (16) A mounting plate (17) is arranged on the top of the mounting plate (17), inclined rods (18) are evenly arranged in an annular direction, and the inclined rods (18) are meshingly connected with the gears (14), and a transmission structure connected with the output shaft of the motor (8) is arranged on the fixed shaft (16), and the transmission structure comprises a pulley 1 (19) sleeved on the fixed shaft (16), the pulley 1 (19) is connected to a pulley 2 (20) through a belt, the pulley 2 (20) is sleeved on a connecting shaft (21), the top end of the connecting shaft (21) is rotatably connected to the inner wall of the mounting box (5) through a bearing, and the bottom end of the connecting shaft (21) is sleeved with a bevel gear 1 (22), the bevel gear 1 (22) is meshingly connected with a bevel gear 2 (23), and the bevel gear 2 (23) is sleeved on the output shaft of the motor (8).

2. According to claim 1, a highly efficient semiconductor refrigerator capable of precise temperature control, characterized in that: Blowing pipes (24) are evenly arranged on the installation box (5).

3. The high-efficiency semiconductor refrigerator capable of precise temperature control according to claim 2, characterized in that: One end of the blowing pipe (24) is opposite to the fan blade 1 (9), and the other end of the blowing pipe (24) passes through the top of the installation box (5) and points to an end away from the semiconductor cooling plate (2).

4. The high-efficiency semiconductor refrigerator capable of precise temperature control according to claim 2, characterized in that: One end of the blowing pipe (24) located inside the installation box (5) is funnel-shaped.

5. The high-efficiency semiconductor refrigerator capable of precise temperature control according to claim 1, characterized in that: The dust removal assembly comprises a fixed frame (25), the inner wall of the fixed frame (25) is evenly provided with scraping strips (26), and the fixed frame (25) and the scraping strips (26) are both closely connected to the heat sink (4), the fixed frame (25) is screwed onto a screw rod, the top end of the screw rod is connected to the output shaft of the forward and reverse motor, and the forward and reverse motor is arranged on the heat conduction plate (1), and the bottom of the heat conduction plate (1) is provided with a vertical rod slidably connected to the fixed frame (25).

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