Motor housing water cooling structure

Abstract

The utility model discloses a motor housing water cooling structure comprising a housing main body, flow channels parallel to a motor rotating shaft are uniformly arranged in the housing wall of the housing main body along the circumferential direction, two ends of the housing main body are respectively provided with an annular shunting pipe and an annular collecting pipe, and sealing washers are arranged between the shunting pipe and the housing main body and between the collecting pipe and the housing main body. The opposite faces of the flow dividing pipe and the flow collecting pipe are each provided with an inserting pipe inserted into the flow channel, the circumferential outer walls of the flow dividing pipe and the flow collecting pipe are provided with a water inlet and a water outlet respectively, and the arrangement directions of the water inlet and the water outlet are opposite. The flow channel parallel to the axis is arranged in the shell wall of the shell body to convey cooling water, the length of the flow channel is greatly reduced compared with that of a water cooling pipe in the prior art, cooling water directly exchanges heat with the shell body, the cooling water circulation efficiency is improved, and the heat exchange efficiency is improved. The cooling water is effectively prevented from slowly circulating and exchanging heat with the shell body for a long time, the temperature of the cooling water is prevented from rising too high, and the heat exchange effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water-cooled motors, in particular to a water-cooling structure for a motor housing. Background Art

[0002] There are many types of water-cooled motors, which are mainly divided into internal water cooling, shell water cooling and external water cooling. Among them, internal water cooling needs to be coordinated with the internal stator, rotor and other structural components of the motor, and the layout position and operation are comprehensively considered, resulting in more complex structural components; external water cooling is far away from the internal structural components of the motor that generate heat, and the heat exchange effect with the internal structural components is poor; considering the complexity of the structural components and the heat exchange effect, the most commonly used is shell water cooling, in which the water cooling pipes are set in the shell wall. The structure is relatively simple and the heat exchange effect is relatively considerable.

[0003] Most of the existing motor housing water-cooling structures have separate water-cooling pipes. There are two common types of water-cooling pipes: one is spirally wound around the outer wall of the motor housing, and the other is S-shaped wound along the circumference of the motor housing. The above arrangements all have an obvious disadvantage. The cooling water has the lowest temperature when it is delivered from the cold water tank. The cooling water in a whole spirally wound and S-shaped wound water-cooling pipe starts to exchange heat and heat from the moment it contacts the motor housing. From the tail end of the motor to the middle of the motor, the cooling water temperature has risen significantly. From the middle of the motor to the front end of the motor, the cooling water will rise further. Since the length of the whole cooling water pipe is too large, the heat exchange time between the cooling water and the motor housing is too long. The cooling effect of the heated cooling water on the motor water cooling is significantly reduced, resulting in limited heat exchange effect. In response to this, the design proposes a motor housing water-cooling structure with better cooling effect. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a water-cooling structure for a motor housing, which is used to achieve the purpose of improving the water-cooling effect of the motor housing.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A water-cooling structure for a motor casing comprises a casing body, wherein a flow channel parallel to a motor shaft is uniformly arranged in the circumferential direction in the shell wall of the casing body, an annular diverter pipe and a collector pipe are respectively arranged at both ends of the casing body, sealing gaskets are respectively arranged between the diverter pipe and the collector pipe and the casing body, and plug-in pipes inserted into the flow channel are respectively provided on the opposing surfaces of the diverter pipe and the collector pipe, and a water inlet and a water outlet are respectively provided on the circumferential outer walls of the diverter pipe and the collector pipe, and the water inlet and the water outlet are arranged in opposite directions.

[0007] Preferably, the flow channel includes an inner flow channel and an outer flow channel, the inner flow channel is arranged close to the inner wall of the shell body, and the outer flow channel is arranged close to the outer wall of the shell body.

[0008] Preferably, the inner flow channels and the outer flow channels are equidistantly arranged in the circumferential direction in the shell wall of the shell body, and the distances between any adjacent outer flow channels and inner flow channels are equal.

[0009] Preferably, the diverter pipe and the converging pipe have the same structure, shape and size.

[0010] Preferably, both sides of the diverter pipe and the converging pipe are planar structures, and the diverter pipe and the converging pipe are clamped and fixed by the front end cover and the rear end cover at both ends of the shell body.

[0011] Preferably, the plug-in tube is an integral structure with the diverter tube and the converging tube respectively, the plug-in tube is a nylon plastic tube, and the plug-in tube is interference-fitted in the flow channel.

[0012] Preferably, the sealing gasket is a rubber gasket, and is provided with a socket corresponding to the position of the plug-in tube and the flow channel.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The utility model transports cooling water by arranging a flow channel parallel to the axis in the shell wall of the shell body. The length of the flow channel is greatly reduced compared with the water-cooling pipe in the prior art. The cooling water directly exchanges heat with the shell body, thereby improving the cooling water circulation efficiency and the heat exchange efficiency, effectively avoiding slow circulation of the cooling water and long-term heat exchange with the shell body, avoiding excessive rise in the cooling water temperature, improving the heat exchange effect, and achieving the purpose of further improving the water cooling effect of the motor shell on the basis of the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a top view of the utility model;

[0017] Figure 3 This is a disassembled top view of the housing body, diverter pipe, collector pipe, front cover, and rear cover of the utility model;

[0018] Figure 4 This is a right side view of the main body of the housing of the utility model;

[0019] Figure 5 This is the right side view of the manifold of the utility model;

[0020] Figure 6 This is the right side view of the shunt pipe of the utility model;

[0021] Figure 7 It is a side view of the sealing gasket of the utility model.

[0022] In the figure: 1. Shell body; 2. Flow channel; 21. Inner flow channel; 22. Outer flow channel; 3. Diverter pipe; 4. Converging pipe; 5. Sealing gasket; 6. Plug-in pipe; 7. Water inlet; 8. Water outlet; 9. Front cover; 10. Rear cover; 11. Socket. DETAILED DESCRIPTION

[0023] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0024] like Figure 1-7 As shown, the utility model provides a technical solution: a water-cooling structure for a motor casing, comprising a casing body 1, in which a flow channel 2 parallel to the motor shaft is uniformly arranged along the circumferential direction in the shell wall of the casing body 1, and the flow channel 2 comprises an inner flow channel 21 and an outer flow channel 22, the inner flow channel 21 is arranged close to the inner wall of the casing body 1, and the outer flow channel 22 is arranged close to the outer wall of the casing body 1, the inner flow channel 21 and the outer flow channel 22 are both equidistantly arranged along the circumferential direction in the shell wall of the casing body 1, and the distance between any adjacent outer flow channels 22 and inner flow channels 21 is equal.

[0025] An annular diverter pipe 3 and a converging pipe 4 are respectively provided at both ends of the shell body 1. A water inlet 7 and a water outlet 8 are respectively provided on the circumferential outer walls of the diverter pipe 3 and the converging pipe 4. The water inlet 7 and the water outlet 8 are provided in opposite directions.

[0026] The structure, shape and size of the shunt pipe 3 and the confluence pipe 4 are the same. Both sides of the shunt pipe 3 and the confluence pipe 4 are planar structures. The shunt pipe 3 and the confluence pipe 4 are clamped and fixed by the front cover 9 and the rear cover 10 at both ends of the shell body 1.

[0027] A sealing gasket 5 is provided between the shunt pipe 3 and the confluence pipe 4 and the shell body 1. The sealing gasket 5 is a rubber gasket. The sealing gasket 5 is provided with a socket 11 corresponding to the position of the plug-in tube 6 and the flow channel 2. The opposite surfaces of the shunt pipe 3 and the confluence pipe 4 are provided with a plug-in tube 6 inserted in the flow channel 2. The plug-in tube 6 is an integral structure with the shunt pipe 3 and the confluence pipe 4 respectively. The plug-in tube 6 is a nylon plastic tube, and the plug-in tube 6 is interference fit in the flow channel 2.

[0028] Working principle:

[0029] An inner flow channel 21 and an outer flow channel 22 parallel to the axis are provided in the shell wall of the shell body 1, so that the cooling water can directly exchange heat with the shell body 1. The length of each inner flow channel 21 and outer flow channel 22 is only the length of the shell body 1, which avoids the cooling water from being in contact with the shell body 1 for too long a distance, for too long a time, or for the temperature to rise too high, thereby improving the cooling water circulation efficiency, the heat exchange efficiency, and the heat exchange effect.

Claims

1. A water-cooling structure for a motor housing, comprising a housing body (1), characterized in that: A flow channel (2) parallel to the motor shaft is uniformly arranged in the shell wall of the shell body (1) along the circumferential direction, and an annular diverter pipe (3) and a converging pipe (4) are respectively arranged at both ends of the shell body (1), and a sealing gasket (5) is provided between the diverter pipe (3) and the converging pipe (4) and the shell body (1), and a plug-in pipe (6) inserted into the flow channel (2) is provided on the opposite surfaces of the diverter pipe (3) and the converging pipe (4), and a water inlet (7) and a water outlet (8) are respectively provided on the circumferential outer walls of the diverter pipe (3) and the converging pipe (4), and the water inlet (7) and the water outlet (8) are arranged in opposite directions.

2. The motor housing water cooling structure according to claim 1, characterized in that: The flow channel (2) comprises an inner flow channel (21) and an outer flow channel (22); the inner flow channel (21) is arranged close to the inner wall of the shell body (1); and the outer flow channel (22) is arranged close to the outer wall of the shell body (1).

3. The motor housing water cooling structure according to claim 2, characterized in that: The inner flow channel (21) and the outer flow channel (22) are both arranged equidistantly along the circumferential direction in the shell wall of the shell body (1), and the distances between any adjacent outer flow channels (22) and inner flow channels (21) are equal.

4. The motor housing water cooling structure according to claim 1, characterized in that: The diverter pipe (3) and the converging pipe (4) have the same structure, shape and size.

5. The motor housing water cooling structure according to claim 1, characterized in that: Both sides of the diverter pipe (3) and the converging pipe (4) are planar structures, and the diverter pipe (3) and the converging pipe (4) are clamped, installed and fixed by the front end cover (9) and the rear end cover (10) at both ends of the shell body (1).

6. The motor housing water cooling structure according to claim 1, characterized in that: The plug-in pipe (6) is an integral structure with the diverter pipe (3) and the converging pipe (4), and the plug-in pipe (6) is a nylon plastic pipe. The plug-in pipe (6) is interference-fitted into the flow channel (2).

7. The motor housing water cooling structure according to claim 1, characterized in that: The sealing gasket (5) is a rubber gasket, and a plug hole (11) corresponding to the position of the plug-in tube (6) and the flow channel (2) is provided on the sealing gasket (5).

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