A motor housing

Abstract

The utility model belongs to motor technical field. It solved the problem of lower heat dissipation efficiency of motor in prior art. Provide a kind of motor casing, including the casing body of cylinder, the cooling flow channel of several respectively along circumferential and annular is set in the casing body, several cooling flow channel is along the axial interval distribution of casing body arrangement, every cooling flow channel all has the liquid inlet and liquid outlet of being set on casing body and not intercommunicating, the liquid outlet of the first cooling flow channel in adjacent two cooling flow channels and the liquid inlet of the last cooling flow channel of second cooling flow channel are all connected by auxiliary flow channel, the outside wall of casing body is connected with first cover, the first cover can cover the liquid inlet and liquid outlet of several cooling flow channel, first cover is set with the gap of giving way that the liquid inlet of first cooling flow channel and the liquid outlet of last cooling flow channel expose is set, the utility model has the advantage of improving the heat dissipation efficiency of motor.

Description

Technical Field

[0001] This utility model belongs to the field of motor technology and relates to a motor housing. Background Technology

[0002] An electric motor is a device that converts electrical energy into mechanical energy. Its main function is to generate driving torque, serving as a power source for electrical appliances or various equipment. During operation, an electric motor generates a significant amount of heat. To ensure normal operation and extend its lifespan, internal cooling is necessary. Common methods for motor cooling include installing heat sinks on the motor housing or mounting a cooling fan at the rear of the housing. Heat sinks facilitate heat transfer and dissipation, while the cooling fan provides continuous airflow to remove heat from the motor's surface. However, both heat sinks and cooling fans have relatively low cooling efficiency and limited cooling effect. Summary of the Invention

[0003] The purpose of this invention is to address the aforementioned problems in existing technologies by providing a motor housing. The technical problem this invention aims to solve is how to improve the heat dissipation efficiency of a motor.

[0004] The objective of this utility model can be achieved through the following technical solutions:

[0005] An electric motor housing includes a cylindrical housing body, characterized in that the housing body has a plurality of circumferentially arranged and annular cooling channels, the plurality of cooling channels being spaced apart along the axial direction of the housing body, each cooling channel having an inlet and an outlet on the housing body that are not interconnected, the outlet of the preceding cooling channel and the inlet of the following cooling channel in two adjacent cooling channels being connected by an auxiliary channel, a first cover plate being connected to the outer side wall of the housing body, the first cover plate being able to cover the inlet and outlet of the plurality of cooling channels, the first cover plate having a clearance notch for the inlet of the first cooling channel and the outlet of the last cooling channel to be exposed.

[0006] In use, simply connect the inlet of the first cooling channel and the outlet of the last cooling channel of the motor housing to the coolant source and set up a circulation pump to form a closed loop for coolant flow. Because the cooling channels of the motor housing are opened along the circumference of the housing body, and several cooling channels are distributed along the axial direction of the housing body, the outlet of the first cooling channel and the inlet of the second cooling channel in two adjacent cooling channels are connected by auxiliary channels, so that the flow direction of the coolant in the cooling channels is a continuous spiral around the housing body. This allows the coolant in the cooling channels to achieve better heat conduction through circulation, and has the characteristics of large heat capacity, large effective heat dissipation area, and good thermal conductivity, thereby improving the heat dissipation efficiency of the motor.

[0007] In the aforementioned motor housing, each cooling channel has a spare liquid inlet on the housing body. A second cover plate is also connected to the outer wall of the housing body. The second cover plate is disposed opposite to the first cover plate and can cover several of the spare liquid inlets. By providing spare liquid inlets, the early processing and manufacturing of the cooling channels are facilitated, and they can be used to replace the original liquid inlets or outlets of the cooling channels.

[0008] In one type of motor housing described above, the second cover plate is detachably connected to the housing body by several bolts. This facilitates easy assembly and disassembly, and allows for convenient cleaning and maintenance of the cooling channels.

[0009] In the aforementioned motor housing, the housing body has several radially arranged baffles, several liquid inlets and several liquid outlets arranged side by side along the axial direction of the housing body, and several baffles are disposed between the liquid inlets and outlets of each cooling channel. Each baffle is perpendicularly abutting against the first cover plate. The baffles separate the liquid inlets and outlets of the same cooling channel, allowing the cooling channels to form a large circulation flow, ensuring that the coolant in the cooling channels flows through the entire housing body as much as possible. Furthermore, the baffles support the first cover plate and allow bolts to be installed on the common wall to form new fixing points, thereby improving the stability of the first cover plate connection and the structural strength of the entire housing body.

[0010] In the aforementioned motor housing, the first cover plate is detachably connected to the housing body by several bolts. This facilitates easy assembly and disassembly, and allows for convenient pre-processing and manufacturing of the cooling channels, as well as subsequent cleaning.

[0011] Compared with existing technologies, the advantages of this motor housing are as follows: In use, it is only necessary to connect the inlet of the first cooling channel and the outlet of the last cooling channel of the motor housing to a coolant source and set up a circulation pump to form a closed loop for coolant flow. Because the cooling channels of this motor housing are opened along the circumference of the housing, and several cooling channels are distributed along the axial direction of the housing body, the outlet of the first cooling channel and the inlet of the second cooling channel in two adjacent cooling channels are connected by auxiliary channels, so that the flow direction of the coolant in the cooling channels is a continuous spiral around the housing body. This allows the coolant in the cooling channels to achieve better heat conduction through circulation, and has the characteristics of large heat capacity, large effective heat dissipation area, and good thermal conductivity, thereby improving the heat dissipation efficiency of the motor. Attached Figure Description

[0012] Figure 1 This is one of the structural schematic diagrams of the motor housing (including a partial sectional view at point AA).

[0013] Figure 2 This is the second schematic diagram of the motor housing.

[0014] Figure 3 This is a sectional view of the motor housing.

[0015] Figure 4 yes Figure 3 Sectional view at point BB.

[0016] In the diagram, 1 is the casing body; 1a is the partition plate; 2 is the cooling channel; 2a is the liquid inlet; 2b is the liquid outlet; 2c is the spare liquid inlet; 3 is the auxiliary channel; 4 is the first cover plate; 4a is the clearance notch; and 5 is the second cover plate. Detailed Implementation

[0017] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0018] A motor housing, as shown in the reference Figure 1-4The device includes a cylindrical housing body 1. The housing body 1 has several circumferentially arranged and annular cooling channels 2. The cooling channels 2 are spaced apart along the axial direction of the housing body 1. Each cooling channel 2 has an inlet 2a and an outlet 2b that are not interconnected and are located on the housing body 1. The outlet 2b of the first cooling channel 2 and the inlet 2a of the second cooling channel 2 are connected by an auxiliary channel 3. A first cover plate 4 is connected to the outer wall of the housing body 1. The first cover plate 4 can cover the inlet 2a and outlet 2b of the cooling channels 2. The first cover plate 4 has a clearance notch 4a for the inlet 2a of the first cooling channel 2 and the outlet 2b of the last cooling channel 2 to be exposed.

[0019] Reference Figure 2 Specifically, each of the cooling channels 2 has a spare liquid inlet 2c opened on the housing body 1. A second cover plate 5 is also connected to the outer side wall of the housing body 1. The second cover plate 5 is arranged opposite to the first cover plate 4, and the second cover plate 5 can cover several of the spare liquid inlets 2c.

[0020] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 More specifically, the housing body 1 has a plurality of radially arranged partitions 1a, a plurality of liquid inlets 2a and a plurality of liquid outlets 2b, which are arranged side by side along the axial direction of the housing body 1. The plurality of partitions 1a are arranged one by one between the liquid inlets 2a and the liquid outlets 2b of each cooling channel 2. The plurality of partitions 1a are arranged perpendicularly to the first cover plate 4.

[0021] In this embodiment, the second cover plate 5 is preferably detachably connected to the housing body 1 by a number of bolts; the first cover plate 4 is detachably connected to the housing body 1 by a number of bolts.

[0022] In use, simply connect the inlet 2a of the first cooling channel 2 and the outlet 2b of the last cooling channel 2 of the motor housing to the coolant source and set up a circulation pump to form a closed loop for coolant flow. Because the cooling channels 2 of the motor housing are opened along the circumference of the housing, and several cooling channels 2 are distributed along the axial direction of the housing body 1, the outlet 2b of the first cooling channel 2 and the inlet 2a of the second cooling channel 2 in two adjacent cooling channels 2 are connected by an auxiliary channel 3, so that the flow direction of the coolant in the cooling channel 2 is a continuous spiral around the housing body 1, thereby enabling the coolant in the cooling channel 2 to achieve heat conduction better through circulation. It has the characteristics of large heat capacity, large effective heat dissipation area and good heat conduction effect, thereby improving the heat dissipation efficiency of the motor.

[0023] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. An electric machine housing comprising a cylindrical housing body (1), characterised in that, The housing body (1) has a plurality of circumferentially arranged and annular cooling channels (2). The plurality of cooling channels (2) are distributed at intervals along the axial direction of the housing body (1). Each cooling channel (2) has a liquid inlet (2a) and a liquid outlet (2b) on the housing body (1) that are not interconnected. The liquid outlet (2b) of the first cooling channel (2) and the liquid outlet (2b) of the second cooling channel (2) are connected to each other. The inlets (2a) of the cooling channels (2) are connected to each other through auxiliary channels (3). A first cover plate (4) is connected to the outer wall of the housing body (1). The first cover plate (4) can cover the inlets (2a) and outlets (2b) of several cooling channels (2). The first cover plate (4) has a clearance notch (4a) for the inlet (2a) of the first cooling channel (2) and the outlet (2b) of the last cooling channel (2) to be exposed.

2. An electrical machine housing according to claim 1, characterised in that Each of the cooling channels (2) has a spare liquid inlet (2c) opened on the housing body (1). A second cover plate (5) is also connected to the outer side wall of the housing body (1). The second cover plate (5) is arranged opposite to the first cover plate (4), and the second cover plate (5) can cover a number of the spare liquid inlets (2c).

3. An electrical machine housing according to claim 2, characterised in that The second cover plate (5) is detachably connected to the housing body (1) by several bolts.

4. A motor housing according to claim 1, 2, or 3, characterized in that, The housing body (1) has a plurality of radially arranged partitions (1a), a plurality of liquid inlets (2a) and a plurality of liquid outlets (2b) are arranged side by side along the axial direction of the housing body (1), and the plurality of partitions (1a) are arranged one by one between the liquid inlet (2a) and the liquid outlet (2b) of each cooling channel (2), and the plurality of partitions (1a) are arranged perpendicularly to the first cover plate (4).

5. An electrical machine housing according to claim 1 or 2 or 3, characterised in that The first cover plate (4) is detachably connected to the housing body (1) by several bolts.

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