A combined heat sink structure for a permanent magnet motor

Abstract

The utility model relates to the field of permanent magnet motor heat dissipation, especially a combined heat dissipation machine shell structure for permanent magnet motor. The combined heat dissipation machine shell structure for permanent magnet motor includes motor shell body, the motor shell body includes the inner casing and the outer casing of coaxial arrangement, the inner casing and the outer casing have certain interval, and the inner casing circumferential outer wall is fixed with multiple fin plates, two sets of symmetrically arranged inner positioning pieces, closed assemblies are also installed between the inner casing and the outer casing to form water channel between the inner casing and the outer casing, and the outer casing is also provided with flow supply structure that communicates with the water channel. The combined heat dissipation machine shell structure for permanent magnet motor provided by the utility model has double-layer structure of outer shell, including fin plate of contact inner layer, to cooperate with air cooling structure to carry out air cooling cooling, and water channel is formed between double-layer outer shell, circulating coolant can be supplied to the inside, to cooperate with air cooling through water cooling.

Description

Technical Field

[0001] This utility model relates to the field of heat dissipation for permanent magnet motors, and in particular to a combined heat dissipation housing structure for permanent magnet motors. Background Technology

[0002] A permanent magnet motor is a device that uses permanent magnets (usually powerful rare earth magnets, such as neodymium iron boron) to generate a motor magnetic field, thereby realizing the conversion between electrical energy and mechanical energy.

[0003] Currently, traditional motors primarily rely on air cooling for heat dissipation. This involves installing finned structures on the outside of the motor housing, with an impeller at the rear end. During motor operation, the impeller rotates at high speed, and airflow passes through the finned structures to achieve air cooling.

[0004] However, the following defects and shortcomings still exist in the application implementation process: Air cooling can cool the motor itself, but relying solely on air cooling has the problem of low heat dissipation efficiency.

[0005] Therefore, it is necessary to provide a new combined heat dissipation housing structure for permanent magnet motors to solve the above-mentioned technical problems. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model provides a combined heat dissipation housing structure for permanent magnet motors.

[0007] The present invention provides a combined heat dissipation housing structure for a permanent magnet motor, including a motor housing body; The motor housing body includes an inner housing and an outer housing arranged coaxially, with a certain gap between the inner housing and the outer housing, and multiple fins are fixed to the outer circumferential wall of the inner housing. Two sets of symmetrically arranged internal positioning components and sealing components are also installed between the inner shell and the outer shell to form a water channel between the inner shell and the outer shell; A water supply structure connecting the water channel is also provided on the outer shell.

[0008] Preferably, the fins also extend to the outside of the outer casing.

[0009] Preferably, the fins are arranged in two symmetrical sets, and their length is less than the length of the inner shell and the outer shell. The midpoint of the fins is offset from the midpoint of the inner shell, so that it has a proximal end that is closer to the midpoint of the inner shell and a distal end that is farther away.

[0010] Preferably, the inner positioning component includes an inner positioning ring, which is inserted into the gap between the inner shell and the outer shell and abuts against the far end of one set of fins. A plurality of U-shaped extension frames are welded and fixed on one side of the inner positioning ring, and the other end of the extension frame abuts against the proximal end of another set of fins. A filter screen is also fixed inside the extension frame.

[0011] Preferably, a calibration structure is also provided between the inner positioning element and the outer shell.

[0012] Preferably, the calibration structure comprises a positioning bayonet disposed on the inner wall of the outer casing and a locking block disposed on the inner positioning ring.

[0013] Preferably, the sealing assembly includes a rubber ring and an outer positioning ring; the rubber ring is inserted into the gap between the inner housing and the outer housing and fits against the inner positioning ring, while the outer positioning ring abuts against the rubber ring and is bolted to the outer housing.

[0014] Preferably, the water supply structure consists of an inlet and an outlet that connect to the waterway.

[0015] Compared with related technologies, the combined heat dissipation housing structure for permanent magnet motors provided by this utility model has the following beneficial effects: This utility model provides a combined heat dissipation housing structure for permanent magnet motors. The outer shell has a double-layer structure, including fins that contact the inner layer to cooperate with the air-cooling structure for air cooling. At the same time, a water channel is formed between the two outer shells to supply circulating coolant into the interior, so as to improve the heat dissipation effect of the motor itself by combining water cooling with air cooling. Attached Figure Description

[0016] Figure 1 A schematic diagram of a preferred embodiment of the combined heat dissipation housing structure for a permanent magnet motor provided by this utility model; Figure 2 This is a schematic diagram of the structure of the motor housing body shown in this utility model. Figure 1 ; Figure 3 This is a schematic diagram of the structure of the motor housing body shown in this utility model. Figure 2 ; Figure 4 As shown in this utility model Figure 3 Enlarged structural diagram at point A; Figure 5 As shown in this utility model Figure 1 A schematic diagram of the explosion's structure; Figure 6 This is a schematic diagram of the internal positioning component shown in this utility model; Figure 7 This is an enlarged structural schematic diagram of section B in Figure 1 of this utility model.

[0017] The following are the labels in the diagram: 1. Motor housing; 11. Inner housing; 12. Outer housing; 13. Fin plate; 14. Positioning bayonet; 2. Inner positioning component; 21. Inner positioning ring; 22. Extension frame; 23. Filter screen; 24. Locking block; 3. Sealing assembly; 31. Rubber ring; 32. Outer positioning ring; 4. Flow supply structure. Detailed Implementation

[0018] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0019] In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0023] Please see Figures 1 to 7 The present invention provides a combined heat dissipation housing structure for a permanent magnet motor, which includes a motor housing body 1. The motor housing body 1 includes an inner housing 11 and an outer housing 12 arranged coaxially, with a certain gap between the inner housing 11 and the outer housing 12, and multiple fin plates 13 are fixed on the outer circumferential wall of the inner housing 11. Two sets of symmetrically arranged inner positioning parts 2 and sealing components 3 are also installed between the inner shell 11 and the outer shell 12 to form a water channel between the inner shell 11 and the outer shell 12; A water supply structure 4 connecting the water channel is also provided on the outer casing 12.

[0024] It should be noted that the device is the outer shell structure of the motor. The outer shell is set in a double layer, namely, including an inner shell 11 and an outer shell 12. A fin 13 is provided on the outer circumference of the inner shell 11 for conducting heat. The fin 13 passes through the gap between the inner shell 11 and the outer shell 12, and a water channel is formed inside the gap. The flow supply structure 4 can supply circulating coolant into the water channel. Therefore, the motor itself can also be water-cooled to improve the heat dissipation effect. The inner positioning component 2 and the sealing component 3 are used together. Both are installed at the end of the motor housing body 1 to seal the end opening of the gap, so that the internal water channel is sealed and leakage is prevented.

[0025] In the embodiments of this utility model, please refer to Figure 2 and Figure 3 The fin plate 13 also extends to the outside of the outer shell 12; The fins 13 are arranged in two symmetrical sets, and their length is less than the length of the inner shell 11 and the outer shell 12. The midpoint of the fins 13 is offset from the midpoint of the inner shell 11, so that it has a proximal end that is closer to the midpoint of the inner shell 11 and a distal end that is farther away.

[0026] It should be noted that the fin plate 13 also passes through the outer shell 12 and is fixedly connected to the outer shell 12 to achieve stable support for the inner shell 11 and the outer shell 12. Meanwhile, there are two sets of fin plates 13, with adjacent fin plates 13 staggered to form a complete waterway (the two ends of one fin plate 13 are flush with the two ends of the two sets of fin plates 13, forming a partition plate structure and a single circulation channel).

[0027] In the embodiments of this utility model, please refer to Figures 4 to 7 The inner positioning component 2 includes an inner positioning ring 21, which is inserted into the gap between the inner housing 11 and the outer housing 12 and abuts against the far end of one set of fins 13. Multiple U-shaped extension frames 22 are welded and fixed on one side of the inner positioning ring 21, and the other end of the extension frame 22 abuts against the near end of another set of fins 13. A filter screen 23 is also fixed inside the extension frame 22. Among them, a calibration structure is also provided between the inner positioning component 2 and the outer shell 12. The calibration structure consists of a positioning bayonet 14 set on the inner wall of the outer shell 12 and a locking block 24 set on the inner positioning ring 21.

[0028] It should be noted that: for the inner positioning component 2, its inner positioning ring 21 can be installed in the gap between the inner housing 11 and the outer housing 12, and at the same time, it has multiple extension frames 22 on one side. The extension frames 22 can abut against the short end of the fin plate 13. A filter screen 23 is also provided inside the extension frame 22. Therefore, when the coolant flows through, the filter screen 23 can intercept the iron filings inside the coolant, which is beneficial for subsequent cleaning. The calibration structure is used to calibrate and position the inner positioning ring 21 to improve its installation accuracy.

[0029] In the embodiments of this utility model, please refer to Figure 5 The sealing component 3 includes a rubber ring 31 and an outer positioning ring 32; the rubber ring 31 is inserted into the gap between the inner housing 11 and the outer housing 12 and fits against the inner positioning ring 21, while the outer positioning ring 32 abuts against the rubber ring 31 and is bolted to the outer housing 12.

[0030] It should be noted that in the sealing component 3, the rubber ring 31 is the main sealing structure, which is closely attached to the inner positioning ring 21. At the same time, an outer positioning ring 32 is added to fix it to ensure the stability of the rubber ring 31 and achieve effective sealing of the gap.

[0031] In the embodiments of this utility model, please refer to Figures 1 to 3 The water supply structure 4 is the inlet and outlet of the water channel.

[0032] It should be noted that: the supply structure 4 is the water inlet and water outlet, both of which are connected to the water channel and are used to connect external supply equipment to realize the circulation of coolant.

[0033] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0034] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A combined heat dissipation housing structure for a permanent magnet motor, comprising a motor housing body (1), characterized in that: The motor housing body (1) includes an inner housing (11) and an outer housing (12) arranged coaxially. There is a certain gap between the inner housing (11) and the outer housing (12). Multiple fin plates (13) are fixed on the outer circumferential wall of the inner housing (11). Two sets of symmetrically arranged inner positioning parts (2) and sealing components (3) are also installed between the inner shell (11) and the outer shell (12) to form a waterway between the inner shell (11) and the outer shell (12); A water supply structure (4) for connecting water channels is also provided on the outer shell (12).

2. The combined heat dissipation housing structure for permanent magnet motors according to claim 1, characterized in that, The fin (13) also extends to the outside of the outer shell (12).

3. The combined heat dissipation housing structure for a permanent magnet motor according to claim 2, characterized in that, The fins (13) are arranged in two symmetrical sets, and their length is less than the length of the inner shell (11) and the outer shell (12). The midpoint of the fins (13) is offset from the midpoint of the inner shell (11), so that it has a proximal end that is closer to the midpoint of the inner shell (11) and a distal end that is farther away.

4. The combined heat dissipation housing structure for a permanent magnet motor according to claim 1, characterized in that, The inner positioning component (2) includes an inner positioning ring (21), which is inserted into the gap between the inner shell (11) and the outer shell (12) and abuts against the far end of one set of fins (13). A plurality of U-shaped extension frames (22) are welded and fixed on one side of the inner positioning ring (21), and the other end of the extension frame (22) abuts against the proximal end of another set of fins (13). A filter screen (23) is also fixed inside the extension frame (22).

5. The combined heat dissipation housing structure for a permanent magnet motor according to claim 4, characterized in that, A calibration structure is also provided between the inner positioning element (2) and the outer shell (12).

6. The combined heat dissipation housing structure for a permanent magnet motor according to claim 5, characterized in that, The calibration structure consists of a positioning bayonet (14) on the inner wall of the outer shell (12) and a locking block (24) on the inner positioning ring (21).

7. The combined heat dissipation housing structure for a permanent magnet motor according to claim 1, characterized in that, The sealing component (3) includes a rubber ring (31) and an outer positioning ring (32); the rubber ring (31) is inserted into the gap between the inner shell (11) and the outer shell (12) and fits the inner positioning ring (21), while the outer positioning ring (32) abuts against the rubber ring (31) and is bolted to the outer shell (12).

8. The combined heat dissipation housing structure for a permanent magnet motor according to claim 1, characterized in that, The water supply structure (4) is the inlet and outlet of the water channel.

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