Heat dissipation structure of oil-cooled flat wire motor

Abstract

The utility model belongs to the technical field of oil cooling flat wire motors, and discloses an oil cooling flat wire motor heat radiation structure, which comprises an upper heat conduction shell, a lower heat conduction shell is arranged below the upper heat conduction shell, and heat conduction sheets are arranged on the inner side walls of the upper heat conduction shell and the lower heat conduction shell. In the using process, heat energy generated in the using process of the oil-cooled flat wire motor can be absorbed through the heat conduction liquid filled in the upper heat conduction shell and the lower heat conduction shell, and the heat dissipation effect is further improved through the heat conduction pieces. Meanwhile, heat absorbed by the upper heat conduction shell and the lower heat conduction shell is diffused through the heat dissipation fins, and heat conduction liquid in the upper heat conduction shell and the lower heat conduction shell can be circularly replaced through the transmission pipe, so that the upper heat conduction shell and the lower heat conduction shell can be at a good temperature; in this way, heat dissipation of the oil-cooled flat wire motor is more efficient.

Description

Technical Field

[0001] The utility model belongs to the technical field of oil-cooled flat wire motors, in particular to a heat dissipation structure of an oil-cooled flat wire motor. Background Art

[0002] At present, with the increasing popularity of new energy electric vehicles, the performance of drive motors faces huge challenges. Flat wire motors have become the mainstream choice in motor drive systems due to their superior performance. When installing flat wire windings, one end is usually twisted and the other end is connected by welding. Due to the existence of the end welding point and the twisted position of the end winding, the end winding will heat up seriously, posing a huge hidden danger. In severe cases, the motor will burn out, causing huge losses.

[0003] In the prior art, the oil-cooled flat wire motor generates heat during use, so it needs to cooperate with a heat dissipation structure to dissipate heat. However, the traditional heat dissipation structure can effectively absorb the heat because the oil-cooled flat wire motor has a long working time. However, as the working time increases, the heat dissipation effect decreases, causing the oil-cooled flat wire motor to still overheat.

[0004] After searching, it is found that a Chinese patent document discloses an oil-cooling structure for the stator end winding of a flat wire motor (publication number: CN202223368304.2). The utility model discloses an oil-cooling structure for the stator end winding of a flat wire motor, which is composed of two stator winding oil-cooling cooling chambers, which are respectively located at the torsion end and the welding end of the end winding of the flat wire motor. Each cooling chamber is provided with an oil inlet and an oil outlet. The cooling chamber is also provided with a winding outlet port, and the port position is consistent with the position of the three-phase winding outlet end and the slot winding. Each outlet port is leak-proof. The cooling structure can ensure that the cooling oil is in full contact with the end winding. Compared with the existing oil cooling technology, the utility model provides an oil-cooling cooling chamber at the welding end and the torsion end of the stator winding, respectively, and adds cooling oil to the cooling chamber from the oil inlet through an oil pump. After the oil chamber is saturated, the oil outlet is opened to circulate the cooling oil. Thereby ensuring the uniformity and effectiveness of the oil cooling method, and achieving the purpose of improving the cooling efficiency, but there are still the following defects:

[0005] Although the oil-cooling cooling structure of the stator end winding of the above-mentioned flat wire motor ensures the uniformity and effectiveness of the oil-cooling cooling method and achieves the purpose of improving the cooling efficiency, it still has a traditional heat dissipation structure. Since the oil-cooled flat wire motor works for a long time, the heat dissipation structure can effectively absorb heat, but as the working time increases, the heat dissipation effect decreases, resulting in the oil-cooled flat wire motor still having the problem of overheating. Utility Model Content

[0006] In order to solve the problems raised in the above background technology, the utility model provides an oil-cooled flat wire motor heat dissipation structure, which has the advantages of being able to perform circulating heat dissipation while dissipating heat for the oil-cooled flat wire motor, thereby ensuring the heat dissipation effect of the oil-cooled flat wire motor.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a heat dissipation structure of an oil-cooled flat wire motor, comprising an upper heat-conducting shell, a lower heat-conducting shell is arranged below the upper heat-conducting shell, and the inner side walls of the upper heat-conducting shell and the lower heat-conducting shell are both provided with heat-conducting sheets, the interiors of the upper heat-conducting shell and the lower heat-conducting shell are both filled with heat-conducting liquid, and the outer side walls of the heat-conducting shell and the lower heat-conducting shell are both installed with a plurality of cooling fins, two transmission pipes are installed on one side of the upper heat-conducting shell and the lower heat-conducting shell, the two transmission pipes are respectively connected to one end of the corresponding transmission pump, and the other end of the transmission pump is connected to the interior of the liquid storage cavity.

[0008] Preferably, the front and rear outer walls of the upper heat-conducting shell are symmetrically mounted with first alignment blocks, and the bottom end of the first alignment block conflicts with the top end of the second alignment block, and the second alignment blocks are symmetrically mounted on the front and rear outer walls of the lower heat-conducting shell.

[0009] Preferably, bolt columns are symmetrically installed on the top of the second alignment block, and the bolt columns pass through the connecting holes opened inside the first alignment block. The outer wall of the bolt column is threadedly connected to the limiting block, and the bottom end of the limiting block conflicts with the top end of the first alignment block.

[0010] Preferably, a plug-in block is installed at the bottom end of each of the second alignment blocks, and the plug-in blocks are plugged into the inside of the plug-in cavity. The outer wall of the plug-in cavity is symmetrically threaded with a limiting bolt, and one end of the limiting bolt is threadedly connected to the inner wall of the plug-in block.

[0011] Preferably, the plug-in cavity is symmetrically mounted on the top of the base, and a mounting seat is mounted on the top of the base, and a mounting shell is mounted on the top of the mounting seat.

[0012] Preferably, a dustproof and heat dissipation net is installed at one end of the installation shell, and a liquid storage cavity is fixedly connected to the inner side wall of the installation shell.

[0013] Preferably, a heat conducting plate is fixedly connected to the bottom end of the liquid storage cavity, a heat dissipation fan is installed at an equal interval at one end inside the mounting shell, and a water cooling pipe is also provided between the heat dissipation fan and the heat conducting plate.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The utility model is provided with an upper heat-conducting shell and a lower heat-conducting shell. In this way, during use, the heat energy generated by the oil-cooled flat wire motor during use can be absorbed by the heat-conducting liquid filled in the upper heat-conducting shell and the lower heat-conducting shell, and the heat dissipation effect is further improved by the heat-conducting sheet. At the same time, the heat absorbed by the upper heat-conducting shell and the lower heat-conducting shell is diffused by the heat dissipation fins, and the heat-conducting liquid in the upper heat-conducting shell and the lower heat-conducting shell can be circulated and replaced through the transmission pipe, so that the upper heat-conducting shell and the lower heat-conducting shell can be kept at a good temperature, so that the heat dissipation of the oil-cooled flat wire motor is more efficient.

[0016] 2. The utility model is provided with a plug-in block, which is plugged into the inside of the plug-in cavity during use and is limited by installing a limit bolt. In this way, when the oil-cooled flat wire motor needs maintenance, the plug-in block can be quickly separated from the plug-in cavity, making maintenance more convenient. In this way, the oil-cooled flat wire motor can be lifted for use, which is helpful for the heat dissipation effect of the oil-cooled flat wire motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the combined parts of the upper heat-conducting shell and the lower heat-conducting shell in the utility model;

[0019] Figure 3 It is a schematic diagram of the structure of the combined parts of the base, the mounting seat and the mounting shell in the utility model;

[0020] Figure 4 It is a schematic diagram of the internal parts structure of the housing installed in the utility model.

[0021] In the figure: 1. upper heat-conducting shell; 2. lower heat-conducting shell; 3. heat-conducting sheet; 4. heat-dissipating fin; 5. first alignment block; 6. second alignment block; 7. bolt column; 8. limit block; 9. plug-in block; 10. plug-in cavity; 11. limit bolt; 12. base; 13. mounting seat; 14. mounting shell; 15. dust-proof heat dissipation net; 16. liquid storage cavity; 17. heat-conducting plate; 18. water-cooling pipe; 19. cooling fan; 20. transmission pump; 21. transmission pipe. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figures 1 to 4 As shown, the utility model provides a heat dissipation structure of an oil-cooled flat wire motor, comprising an upper heat-conducting shell 1, a lower heat-conducting shell 2 connected to the lower end of the oil-cooled flat wire motor is arranged below the upper heat-conducting shell 1, the inner side walls of the upper heat-conducting shell 1 and the lower heat-conducting shell 2 are fixedly connected with a heat-conducting sheet 3 that fits the outer side wall of the oil-cooled flat wire motor, the heat-conducting sheet 3 is a copper material structure, the interiors of the upper heat-conducting shell 1 and the lower heat-conducting shell 2 are filled with heat-conducting liquid, and the outer side walls of the upper heat-conducting shell 1 and the lower heat-conducting shell 2 are fixedly installed with a plurality of heat-dissipating fins 4 arranged in a rectangular structure, the heat-dissipating fins 4 are an aluminum alloy material structure, and one side of the upper heat-conducting shell 1 and the lower heat-conducting shell 2 are symmetrically connected with two A transmission pipe 21 is provided through the upper heat-conducting shell 1 and the lower heat-conducting shell 2. In this way, during use, the heat-conducting liquid filled in the upper heat-conducting shell 1 and the lower heat-conducting shell 2 can absorb the heat energy generated by the oil-cooled flat wire motor during use, and the heat-dissipating effect can be further improved through the heat-conducting sheet 3. At the same time, the heat absorbed by the upper heat-conducting shell 1 and the lower heat-conducting shell 2 is diffused through the heat-dissipating fins 4. The heat-conducting liquid in the upper heat-conducting shell 1 and the lower heat-conducting shell 2 can be circulated and replaced through the transmission pipe 21. In this way, the upper heat-conducting shell 1 and the lower heat-conducting shell 2 can be kept at a good temperature, so that the heat dissipation of the oil-cooled flat wire motor is more efficient.

[0024] Specifically, the outer walls on both sides of the upper heat-conducting shell 1 and the lower heat-conducting shell 2 are respectively fixedly connected with the corresponding first alignment block 5 and the second alignment block 6, and the top of the second alignment block 6 is symmetrically fixedly connected with the bolt column 7, the outer wall of the bolt column 7 is threadedly connected with the limiting block 8, and the bottom end of the limiting block 8 is in conflict with the top of the first alignment block 5. By setting the limiting block 8, the limiting block 8 can be rotated so that the limiting block 8 is in conflict with the top of the first alignment block 5, thereby completing the fixed connection between the upper heat-conducting shell 1 and the lower heat-conducting shell 2.

[0025] Furthermore, the bottom ends of the second alignment blocks 6 are fixedly connected with plug-in blocks 9 which are plugged into the interior of the plug-in cavity 10, and both ends of the plug-in blocks 9 are provided with threaded cavities for installing limit bolts 11, and both ends of the plug-in cavity 10 are provided with connecting cavities adapted to the threaded cavities, and the inner side walls of the connecting cavity and the threaded cavity are both provided with threaded structures, and both ends of the plug-in cavity 10 are threadedly connected to the limit bolts 11, and the outer side walls of the limit bolts 11 are threadedly connected to the inner side walls of the connecting cavity and the threaded cavity, through the provided plug-in blocks 9, so that during use, the plug-in blocks 9 are plugged into the interior of the plug-in cavity 10, and the limit bolts 11 are installed for limiting, so that when the oil-cooled flat wire motor needs maintenance, etc., it can be quickly separated from the plug-in cavity 10 through the plug-in block 9, thereby making it more convenient during maintenance.

[0026] Furthermore, the plug-in cavities 10 are symmetrically fixedly connected to the top of the base 12, and the top of the base 12 is fixedly connected to the mounting seat 13, the top of the mounting seat 13 is fixedly connected to the mounting shell 14 with a circular ring structure, and one end of the mounting shell 14 is fixedly connected to the dustproof and heat dissipation net 15, and the interior of the mounting shell 14 is fixedly connected to the liquid storage cavity 16.

[0027] It is worth noting that four transmission pumps 20 are fixedly connected to one end of the liquid storage chamber 16, wherein the output ends of two transmission pumps 20 are connected to the interior of the liquid storage chamber 16, and the input ends are flange-connected to one end of one of the transmission pipes 21 connected to one end of the upper heat-conducting shell 1 and the lower heat-conducting shell 2, and the input ends of the other two transmission pumps 20 are connected to the interior of the liquid storage chamber 16, and the output ends are flange-connected to one end of the other transmission pipe 21 connected to one end of the upper heat-conducting shell 1 and the lower heat-conducting shell 2. Through the provided liquid storage chamber 16, the four transmission pumps 20 can be operated during use to circulate and replace the heat-conducting liquid inside the upper heat-conducting shell 1 and the lower heat-conducting shell 2, so that the heat-conducting liquid inside the upper heat-conducting shell 1 and the lower heat-conducting shell 2 is always at a good temperature.

[0028] It is worth noting that the bottom end of the liquid storage chamber 16 is fixedly connected to a heat conducting plate 17 having a circular ring structure, a water cooling tube 18 fixedly connected to the inner wall of the mounting shell 14 is arranged below the heat conducting plate 17, and a plurality of cooling fans 19 arranged at equal intervals are fixedly connected to one end of the interior of the mounting shell 14. Through the provided cooling fan 19, the cooling fan 19, the water cooling tube 18 and the heat conducting plate 17 cooperate with each other during use, so that the heat of the heat-conducting liquid inside the liquid storage chamber 16 can be quickly cooled, thereby improving the heat dissipation effect of the oil-cooled flat wire motor.

[0029] Principle and process of this utility model:

[0030] First, the plug-in block 9 is provided, so that during use, the plug-in block 9 is plugged into the interior of the plug-in cavity 10, and the limiting bolt 11 is installed to limit the position, so that the lower heat-conducting housing 2 is limited and fixed;

[0031] Then, the limiting block 8 is set, and the limiting block 8 is rotated so that the limiting block 8 contacts the top of the first alignment block 5, thereby completing the fixed connection between the upper heat-conducting housing 1 and the lower heat-conducting housing 2;

[0032] Afterwards, by setting the upper heat-conducting shell 1 and the lower heat-conducting shell 2, during use, the heat energy generated by the oil-cooled flat wire motor during use can be absorbed by the heat-conducting liquid filled in the upper heat-conducting shell 1 and the lower heat-conducting shell 2, and the heat dissipation effect is further improved by the heat-conducting sheet 3, and the heat absorbed by the upper heat-conducting shell 1 and the lower heat-conducting shell 2 is diffused by the heat dissipation fins 4;

[0033] Finally, by setting the liquid storage chamber 16, during use, four transmission pumps 20 can be used to circulate and replace the heat-conducting liquid inside the upper heat-conducting shell 1 and the lower heat-conducting shell 2, so that the heat-conducting liquid inside the upper heat-conducting shell 1 and the lower heat-conducting shell 2 is always at a good temperature, and by setting the heat dissipation fan 19, during use, the heat dissipation fan 19, the water cooling pipe 18 and the heat conduction plate 17 cooperate with each other, so that the heat of the heat-conducting liquid inside the liquid storage chamber 16 can be quickly cooled. In this way, the heat dissipation structure of the oil-cooled flat wire motor is completed;

[0034] It should be noted that the utility model is an oil-cooled flat wire motor heat dissipation structure, and the components are all universal standard parts or components known to those skilled in the art. The structure and principle can be known to those skilled in the art through technical manuals or through conventional experimental methods. In the idle part of the device, all the above-mentioned electrical components, which refer to power elements, electrical components, and adapted monitoring computers and power supplies, are connected through wires. The specific connection means should refer to the above-mentioned working principle, and the electrical connection is completed in the working order of each electrical component. The detailed connection means are well-known technologies in the art.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0036] 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 heat dissipation structure for an oil-cooled flat wire motor, comprising an upper heat-conducting housing (1), characterized in that: A lower heat-conducting shell (2) is arranged below the upper heat-conducting shell (1), and the inner side walls of the upper heat-conducting shell (1) and the lower heat-conducting shell (2) are both provided with heat-conducting sheets (3). The interiors of the upper heat-conducting shell (1) and the lower heat-conducting shell (2) are both filled with heat-conducting liquid, and the outer side walls of the heat-conducting shell (1) and the lower heat-conducting shell (2) are both provided with a plurality of heat-dissipating fins (4). Two transmission pipes (21) are respectively provided on one side of the upper heat-conducting shell (1) and the lower heat-conducting shell (2), and the two transmission pipes (21) are respectively connected to one end of a corresponding transmission pump (20), and the other end of the transmission pump (20) is communicated with the interior of the liquid storage chamber (16).

2. The heat dissipation structure of the oil-cooled flat wire motor according to claim 1 is characterized in that: The front and rear outer walls of the upper heat-conducting shell (1) are both symmetrically mounted with first alignment blocks (5), and the bottom end of the first alignment block (5) abuts against the top end of the second alignment block (6), and the second alignment block (6) is symmetrically mounted on the front and rear outer walls of the lower heat-conducting shell (2).

3. The heat dissipation structure of the oil-cooled flat wire motor according to claim 2 is characterized in that: The top ends of the second alignment blocks (6) are symmetrically provided with bolt columns (7), and the bolt columns (7) pass through the connecting holes provided inside the first alignment blocks (5). The outer walls of the bolt columns (7) are threadedly connected to the limiting blocks (8), and the bottom ends of the limiting blocks (8) are in conflict with the top ends of the first alignment blocks (5).

4. The heat dissipation structure of the oil-cooled flat wire motor according to claim 1, characterized in that: The bottom end of each of the second alignment blocks (6) is provided with a plug-in block (9), and the plug-in block (9) is plugged into the interior of the plug-in cavity (10). The outer wall of the plug-in cavity (10) is symmetrically threadedly connected with a limit bolt (11), and one end of the limit bolt (11) is threadedly connected to the inner wall of the plug-in block (9).

5. The heat dissipation structure of the oil-cooled flat wire motor according to claim 4, characterized in that: The plug-in cavity (10) is symmetrically mounted on the top of the base (12), and a mounting seat (13) is mounted on the top of the base (12), and a mounting shell (14) is mounted on the top of the mounting seat (13).

6. The heat dissipation structure of the oil-cooled flat wire motor according to claim 5, characterized in that: A dustproof and heat dissipation net (15) is installed at one end of the installation shell (14), and a liquid storage cavity (16) is fixedly connected to the inner side wall of the installation shell (14).

7. The heat dissipation structure of the oil-cooled flat wire motor according to claim 6, characterized in that: The bottom end of the liquid storage chamber (16) is fixedly connected to a heat conducting plate (17), a heat dissipation fan (19) is evenly installed at one end of the interior of the mounting shell (14), and a water cooling pipe (18) is also arranged between the heat dissipation fan (19) and the heat conducting plate (17).

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