Sewing machine sealing oil pan cooling structure

Abstract

The utility model provides a sewing machine sealing oil disc cooling structure which comprises an oil disc, the oil disc and a sewing machine form a sealing oil storage cavity, a heat conduction piece and a radiator are arranged on the oil disc, the heat conduction piece is attached to the outer wall of the oil disc and transmits heat outwards, and the radiator is used for dissipating heat of the heat conduction piece. And the heat conduction piece is attached to the outer wall of the oil disc, so that the oil body in the oil storage cavity is cooled while the oil storage cavity is sealed, the non-contact heat dissipation effect is achieved, and dust particles and the like are prevented from entering the oil liquid in the cooling process to affect the service life of the sewing machine.

Description

Technical Field

[0001] The utility model relates to sewing machine accessories, in particular to a cooling structure of a sealing oil pan of a sewing machine. Background Art

[0002] At present, a Chinese patent with announcement number CN211522540U discloses an industrial sewing machine with an oil pan cooling structure, including a machine head and an oil pan, a cooling circulation power device is fixedly connected to the bottom of the machine head, an input pipe and an output pipe are connected to one side of the cooling circulation power device, and a fan is fixed to the bottom of the inner wall of the oil pan. The fan and the cooling circulation power device cooperate to blow cold air into the oil pan, thereby cooling the cooling oil and ensuring a reasonable temperature of the lubricating oil.

[0003] The above patent still has shortcomings. The above patent uses a fan and a cooling circulation power device to blow cold air to the lubricating oil, so that the oil pan is not in a sealed state. When impurities such as dust and particles enter the oil pan through the cold air, they will enter the lubricating oil. Using lubricating oil with more impurities will relatively accelerate the wear of the internal gears of the sewing machine, thereby shortening the life of the sewing machine. Utility Model Content

[0004] In view of this, the utility model aims to provide a cooling structure for a sealed oil pan of a sewing machine, which has the function of cooling the sealed oil pan.

[0005] In order to solve the above technical problems, the technical solution of the utility model is: a sealed oil pan cooling structure for a sewing machine, comprising an oil pan, wherein the oil pan and the sewing machine form a sealed oil storage cavity, a heat conduction member and a radiator are provided on the oil pan, the heat conduction member is in contact with the outer wall of the oil pan and transfers heat to the outside, and the radiator is used to dissipate heat from the heat conduction member.

[0006] Through the above-mentioned technical means, by cooperating with the heat conduction component and the heat dissipation component, and making the heat conduction component fit the outer wall of the oil pan, the oil in the oil storage cavity is sealed and the oil is dissipated, thereby achieving the effect of contactless heat dissipation and preventing dust particles from entering the oil during the cooling process and affecting the life of the sewing machine.

[0007] Preferably, the heat conducting member comprises a semiconductor sheet, the semiconductor sheet comprises a hot end and a cold end, the cold end is attached to the oil pan, and the radiator dissipates heat from the hot end.

[0008] Through the above-mentioned technical means, the semiconductor chip is energized so that the current generates a voltage difference at both ends of the semiconductor. The heat flows from the cold end to the hot end through the thermoelectric effect, completing the heat exchange and achieving the heat dissipation effect. At the same time, the semiconductor chip has the advantages of no refrigerant pollution and small thickness, which makes the sewing machine compact and environmentally friendly.

[0009] Preferably, a mounting groove 1 is provided below the oil pan, a mounting plate is also provided at the bottom of the oil pan, the heat conduction member is provided in the mounting groove 1 and fixed by the mounting plate, and the mounting plate is detachably connected to the oil pan.

[0010] Through the above technical means, the heat conduction component is fixed by the mounting plate, and the mounting plate is detachably connected to the oil pan, so that the installation, maintenance and replacement of the heat conduction component are more convenient.

[0011] Preferably, heat dissipation fins are provided at the bottom of the mounting plate, and the heat dissipation fins face the radiator.

[0012] Through the above technical means, by arranging heat dissipation fins at the bottom of the mounting plate, when heat is transferred to the mounting plate, the heat sink has a higher heat dissipation efficiency for the mounting plate.

[0013] Preferably, the radiator comprises a cooling fan, and the cooling fan faces the direction of the heat conducting element.

[0014] Through the above technical means, the heat conduction component is cooled by the heat dissipation fan, thereby ensuring the heat dissipation efficiency while reducing the heat dissipation cost.

[0015] Preferably, a fan cover is provided at the bottom of the fan, and the fan cover is detachably connected to the oil pan.

[0016] Through the above technical means, the fan cover is used to reduce the amount of foreign matter entering the fan blades, thereby increasing the life of the fan, and the fan cover is detachably connected to the oil pan, thereby facilitating the installation, maintenance and replacement of the cooling fan.

[0017] Preferably, a second wire groove is provided at the bottom of the oil pan, and the second wire groove is used to place the connecting wires between the heat conducting member and the radiator. A groove cover plate is also detachably provided at the bottom of the oil pan, and the groove cover plate is used to compress the connecting wires.

[0018] Through the above technical means, by opening a second wire groove at the bottom of the chassis and pressing the connecting wire with the groove cover to prevent the connecting wire from falling, the connecting wire can be prevented from being damaged when subjected to external force.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] 1. The semiconductor sheet is attached to the bottom of the oil pan, so that the oil can dissipate heat in a sealed state to avoid contact between the oil and the air. At the same time, there is no refrigerant pollution, the space utilization rate is high, and the compactness is good;

[0021] 2. By providing a mounting plate and fins at the bottom of the mounting plate, the heat dissipation efficiency is increased while facilitating the installation of semiconductor chips. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1It is a structural schematic diagram of an embodiment;

[0023] Figure 2 An exploded schematic diagram of an embodiment;

[0024] Figure 3 It is a structural schematic diagram of the oil pan;

[0025] Figure 4 It is a structural schematic diagram of the mounting plate;

[0026] Figure 5 It is a partial exploded view of the embodiment.

[0027] Figure numerals: 1. oil pan; 2. sealing groove; 3. oil storage chamber; 4. heat conduction member; 5. radiator; 6. semiconductor chip; 7. mounting slot one; 8. mounting plate; 9. mounting slot two; 10. wire slot one; 11. thickening ring; 12. through hole; 13. fan cover; 14. cooling fan; 15. cooling fin; 16. connecting hole one; 18. connecting hole two; 19. connecting hole three; 20. wire slot two; 21. slot cover. DETAILED DESCRIPTION

[0028] The specific implementation modes of the present invention are further described below in conjunction with the accompanying drawings to make the technical solutions of the present invention easier to understand and grasp.

[0029] A sewing machine sealed oil pan cooling structure, such as Figure 1-Figure 5 As shown, it includes an oil pan 1, and a sealing groove 2 for installing a sealing strip is provided on the upper end surface of the oil pan 1, so that a sealed oil storage cavity 3 is formed between the oil pan 1 and the sewing machine to prevent dust particles and the like from entering the oil during the cooling process and affecting the life of the sewing machine. A heat conduction member 4 and a radiator 5 are provided at the bottom of the oil pan 1. The heat conduction member 4 is in contact with the outer wall of the oil pan 1 and transfers heat to the outside. The radiator 5 is used to dissipate heat from the heat conduction member 4.

[0030] The heat conducting member 4 includes a semiconductor sheet 6, and the radiator 5 includes a cooling fan 14. The semiconductor sheet 6 is composed of a thermocouple pair composed of N-type and P-type semiconductor materials, including a hot end and a cold end. The cold end is attached to the bottom surface of the oil pan 1, and the radiator 5 dissipates heat from the hot end. When current passes through the semiconductor sheet 6, heat will be transferred from the cold end to the hot end, completing the heat exchange and achieving the effect of lowering the oil temperature. The heat dissipation of the hot end by the cooling fan 14 can prevent the hot end temperature from being high. The semiconductor sheet 6 only adheres to the outer surface of the oil pan 1 and does not come into contact with the oil. At the same time, no refrigerant is required, which has good environmental protection. The semiconductor sheet 6 is relatively thin, so that the sewing machine has good compactness.

[0031] A mounting groove 7 is provided below the oil pan 1, and a mounting plate 8 is also provided at the bottom of the oil pan 1. A mounting groove 29 for placing a semiconductor chip 6 is provided on the mounting plate 8. A wire groove 10 is provided at the side end of the mounting groove 29. The connecting wires on the semiconductor chip 6 are arranged in the wire groove 10. Four thickened rings 11 are also provided on the mounting plate 8. Each of the thickened rings 11 is provided with a connecting hole 16. The connecting hole 16 is provided with an internal thread. A heat dissipation fin 15 is provided at the bottom of the mounting plate 8. The heat dissipation fin 15 faces the heat dissipation fan 14. The heat dissipation fin 15 is lower than the thickened ring 11. The heat dissipation fan 14 The outer shell is against the thickening ring 11 and is provided with four through holes 12 corresponding to the connecting holes. A fan cover 13 is provided at the bottom of the cooling fan 14. Four connecting holes 2 18 and four connecting holes 3 19 are provided on the fan cover 13. The connecting hole 2 18 corresponds to the through hole 12 and the connecting hole. The screws are passed through the connecting hole 2 18 and the through hole 12 to be threadedly fixed with the connecting hole 1 16, so that the mounting plate 8 is assembled with the cooling fan 14 and the fan cover 13 in advance. The connecting hole 3 19 is connected to the bottom of the oil pan 1 by screws, so that the cooling fan 14 and the mounting plate 8 are fixed to the oil pan 1.

[0032] When installing the semiconductor chip 6, first assemble the mounting plate 8, the cooling fan 14 and the fan cover 13, then place the semiconductor chip 6 in the mounting groove 2 9, and finally align the semiconductor chip 6 with the mounting groove 1 7 and tighten the screws at the connecting hole 3 19. By arranging the cooling fins 15 at the bottom of the mounting plate 8, when the heat is transferred to the mounting plate 8, the heat dissipation efficiency of the radiator 5 for the mounting plate 8 is higher. The fan cover 13 reduces the foreign matter entering the fan blades and increases the life of the fan. The detachable connection between the fan cover 13 and the oil pan 1 facilitates the inspection and replacement of the cooling fan 14 and the semiconductor chip 6.

[0033] A second wire groove 20 is also provided at the bottom of the oil pan 1 for placing the connecting wires of the heat conducting member 4 and the radiator 5. A detachable groove cover 21 is also provided at the bottom of the oil pan 1 for pressing the connecting wires.

[0034] Of course, the above are only typical examples of the present invention. In addition, the present invention may have many other specific implementations. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.

Claims

1. A cooling structure for a sealed oil pan of a sewing machine, comprising an oil pan (1), characterized in that: The oil pan (1) and the sewing machine form a sealed oil storage cavity (3); a heat conducting element (4) and a radiator (5) are provided on the oil pan (1); the heat conducting element (4) is in contact with the outer wall of the oil pan (1) and transfers heat outwards; and the radiator (5) is used to dissipate heat from the heat conducting element (4).

2. A cooling structure for a sealing oil pan of a sewing machine according to claim 1, characterized in that: The heat conducting element (4) comprises a semiconductor chip (6), the semiconductor chip (6) comprises a hot end and a cold end, the cold end is attached to the oil pan (1), and the radiator (5) dissipates heat from the hot end.

3. The cooling structure of the sealing oil pan of a sewing machine according to claim 1 is characterized by: A mounting groove (7) is provided below the oil pan (1), and a mounting plate (8) is also provided at the bottom of the oil pan (1). The heat conduction member (4) is arranged in the mounting groove (7) and fixed by the mounting plate (8), and the mounting plate (8) is detachably connected to the oil pan (1).

4. A cooling structure for a sealing oil pan of a sewing machine according to claim 3, characterized in that: The bottom of the mounting plate (8) is provided with heat dissipation fins (15), and the heat dissipation fins (15) face the radiator (5).

5. The cooling structure of the sealing oil pan of a sewing machine according to claim 1 is characterized by: The radiator (5) comprises a cooling fan (14), and the cooling fan (14) faces the direction of the heat conducting element (4).

6. A cooling structure for a sealing oil pan of a sewing machine according to claim 5, characterized in that: A fan cover (13) is provided at the bottom of the fan, and the fan cover (13) is detachably connected to the oil pan (1).

7. The cooling structure of the sealing oil pan of a sewing machine according to claim 1 is characterized by: The bottom of the oil pan (1) is also provided with a second wire groove (20), and the second wire groove (20) is used to place the connection wires of the heat conduction element (4) and the radiator (5). The bottom of the oil pan (1) is also provided with a detachable groove cover plate (21), and the groove cover plate (21) is used to press the connection wires.

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