Motor with core cooling water pipe embedded in shell

Abstract

The utility model discloses a motor with a core cooling water pipe embedded in a shell, which comprises a motor shell, a stator, a rotor, a front end cover and a rear end cover, a cooling water channel is arranged in the motor shell, a cooling water channel is embedded in the motor shell, the motor shell and the cooling water channel are integrally cast and formed, and a water inlet and a water outlet are arranged on the outer side surface of the motor shell. The cooling water channel comprises an outer ring water channel and an inner ring water channel which are communicated with each other. Through the design of the mode, the contact area between water flow and the motor shell can be effectively increased, the heat dissipation efficiency is improved, and the overall strength of the motor shell is also improved.

Description

Technical Field

[0001] This utility model relates to the field of motor heat dissipation technology, specifically to a motor with a core cooling water pipe embedded in its housing. Background Technology

[0002] During normal operation, the energized coils of an electric motor generate a significant amount of heat, which accumulates continuously. If this heat cannot be dissipated in time, it can damage motor components and shorten the motor's overall lifespan. Currently, the main methods for motor cooling are air cooling and water cooling. Water-cooled motors employ two methods: one involves adding a separate heat dissipation structure inside the motor, but this method has limited cooling efficiency; the other method involves leaving a cavity inside the motor housing during casting, with cooling water entering through the inlet and exiting through the outlet, thus carrying away some heat. However, with this method, the cooling water can linger in certain areas of the housing cavity for extended periods, leading to uneven heat dissipation and localized high temperatures. Furthermore, this cavity structure can weaken the overall strength of the housing. Utility Model Content

[0003] The purpose of this invention is to overcome the defects in the existing technology and provide a motor with a core cooling water pipe embedded in the housing. In addition, the unique cooling water channel structure design can effectively increase the contact area between the water flow and the motor housing, thereby improving heat dissipation efficiency and enhancing the housing strength.

[0004] To achieve the above objectives, the technical solution of this utility model is to design a motor with a core cooling water pipe embedded in the housing, including a motor housing, a stator, a rotor, a front end cover, and a rear end cover. The motor housing is provided with a cooling water channel, and the motor housing and the cooling water channel are integrally formed. The outer side of the motor housing is provided with a water inlet and a water outlet.

[0005] Furthermore, the cooling water channel includes an outer ring water channel and an inner ring water channel, which are connected to each other.

[0006] Furthermore, the outer and inner ring waterways are asymmetrical spiral waterways, with different water flow directions in the outer and inner ring waterways.

[0007] Optionally, the cross-section of the cooling water channel is teardrop-shaped.

[0008] Optionally, the inner surface of the cooling water channel is provided with triangular turbulence protrusions at intervals.

[0009] Furthermore, the outer surface of the motor housing is provided with axial heat dissipation fins.

[0010] Furthermore, a detachable filter screen is provided at the water inlet port.

[0011] Furthermore, the filter screen is installed at an angle to the direction of water flow.

[0012] Furthermore, an automatic pressure relief valve is provided on the outside of the motor housing, and the automatic pressure relief valve is connected to the cooling water channel.

[0013] Furthermore, it also includes a water control component, which includes a water tank and a water pump. The water tank and the water pump are connected by a pipe, the water pump is connected to the motor inlet by a pipe, and the motor outlet is connected to the water tank by a pipe.

[0014] Furthermore, the water control component also includes a speed change device and a temperature sensor. The temperature sensor is connected to the speed change device, which controls the flow rate of the water pump.

[0015] The advantages and beneficial effects of this utility model are as follows:

[0016] 1. The motor housing and cooling water channels are integrally molded, effectively increasing the contact area between the water flow and the motor housing, improving heat dissipation efficiency, and solving problems such as low cooling efficiency and uneven heat dissipation, resulting in more stable performance. The dual cooling water channel design further increases the contact area between the water flow and the motor housing, further enhancing heat dissipation efficiency. Additionally, the asymmetrical spiral water channel design effectively balances the impact force generated when the coolant flows through the housing, making the entire motor operation more stable.

[0017] 2. The teardrop-shaped cooling channel cross-section and the triangular turbulence protrusions both increase turbulence and improve heat dissipation efficiency. The heat dissipation fins can also dissipate excess heat, further improving the overall heat dissipation efficiency of the motor.

[0018] 3. The filter screen effectively reduces impurities entering the cooling water channels, thereby improving the coolant reuse rate. Installing the filter screen at a slight angle to the water flow direction further reduces the impact on water flow velocity when a large amount of impurities accumulate at the filter screen. An external automatic pressure relief valve promptly releases pressure when the motor experiences high internal pressure due to high temperature, protecting the motor equipment.

[0019] 4. The temperature sensor installed on the motor housing can control the speed control device in real time according to temperature changes, thereby controlling the flow rate of the water pump. When the temperature is high, the flow rate increases and the heat dissipation effect is enhanced; when the temperature is low, the flow rate decreases and the heat dissipation effect is weakened. This ensures the overall heat dissipation of the motor and also achieves energy saving and emission reduction. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the motor of this utility model;

[0021] Figure 2This is a cross-sectional view of a single cooling water channel for the motor of this utility model;

[0022] Figure 3 This is a cross-sectional view of the dual cooling water channels of the motor of this utility model;

[0023] Figure 4 This is a schematic diagram of the outer and inner ring waterways of this utility model when they are asymmetrical spiral waterways;

[0024] Figure 5 This is a schematic diagram of the teardrop-shaped cross-section of the cooling water channel and the triangular turbulence protrusion of this utility model;

[0025] Figure 6 This is a schematic diagram of the water inlet filter screen of this utility model;

[0026] Figure 7 This is a schematic diagram of the heat dissipation fins of the motor housing of this utility model;

[0027] Figure 8 This is a schematic diagram of the water control component of this utility model.

[0028] In the diagram: 1. Motor housing; 2. Stator; 3. Rotor; 4. Shaft; 5. Front cover; 6. Rear cover; 7. Cooling water channel; 701. Outer ring water channel; 702. Inner ring water channel; 8. Inlet; 9. Outlet; 10. Triangular turbulence protrusion; 11. Heat dissipation fins; 12. Filter screen; 13. Automatic pressure relief valve; 14. Water control assembly; 15. Water tank; 16. Water pump; 17. Connecting pipe; 18. Speed ​​change device; 19. Temperature sensor. Detailed Implementation

[0029] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0030] according to Figure 1 and Figure 2 As shown, this utility model is a motor with a core cooling water pipe embedded inside the casing. It includes a motor housing 1, a stator 2, a rotor 3, a shaft 4, a front cover 5, and a rear cover 6. The motor housing 1 has a cooling water channel 7 inside, and the motor housing 1 and the cooling water channel 7 are integrally formed. Specifically, before casting the motor housing 1, copper or aluminum pipes are bent into pipes with the same structure as the required cooling water channel 7 and placed inside the casting cavity of the motor housing 1. The two ends of the pipes are connected to the casting molds at the inlet 8 and outlet 9, respectively. During casting, molten iron enters the casting cavity through the casting inlet, enveloping the cooling water channel 7, ultimately forming a motor housing 1 with a cooling water pipe embedded inside. This structure allows cooling water to flow directly out through the pipes, improving both heat dissipation efficiency and the overall strength of the housing.

[0031] according to Figure 3 As shown, the cooling water channel 7 includes an outer ring water channel 701 and an inner ring water channel 702. The outer ring water channel 701 and the inner ring water channel 702 are connected, which further increases the contact area between the cooling water channel 7 and the motor housing 1, and greatly improves the heat dissipation efficiency.

[0032] according to Figure 4 The outer ring water channel 701 and inner ring water channel 702 shown are asymmetrical spiral water channels. The outer ring water channel 701 rotates counterclockwise and the inner ring water channel 702 rotates clockwise, or the outer ring water channel 701 rotates clockwise and the inner ring water channel 702 rotates counterclockwise. This asymmetrical spiral water channel can increase the heat dissipation area while effectively balancing the impact force generated by the coolant flowing in the casing, making the entire motor operation more stable.

[0033] according to Figure 5 and Figure 7 As shown, the cooling water channel 7 has a teardrop-shaped cross-section, which increases turbulence. The triangular turbulence protrusions 10 spaced apart on the inner surface of the cooling water channel 7 also increase turbulence, further improving the overall heat dissipation efficiency of the motor. Axial heat dissipation fins 11 on the outer surface of the motor housing 1 further remove some heat.

[0034] according to Figure 6 As shown, a removable filter screen 12 is provided at the water inlet 8. The filter screen 12 is installed at an angle to the water flow direction. This effectively reduces the amount of impurities in the cooling water entering the motor housing 1, preventing sediment formation in the cooling water under high-temperature conditions, which could corrode the motor and affect heat dissipation.

[0035] An automatic pressure relief valve 13 is also provided on the outside of the motor housing 1. The automatic pressure relief valve 13 is connected to the cooling water channel 7 and can release the pressure in time when the motor generates a large pressure due to high temperature, thus protecting the motor equipment.

[0036] according to Figure 8 As shown, the motor also includes a water control assembly 14, which includes a water tank 15 and a water pump 16. The water tank 15 and the water pump 16 are connected by a connecting pipe 17. The water pump 16 is connected to the motor inlet 8 by a connecting pipe 17. The motor outlet 9 is connected to the water tank 15 by a connecting pipe 17. When the motor is working, the water pump 16 starts to pump the coolant out of the water tank 15. The coolant enters the motor housing 1 through the inlet 8 via the connecting pipe 17 and moves along the cooling water channel 7. During this process, the coolant carries away the heat on the motor housing 1 and finally flows back to the water tank 15 at the outlet 9.

[0037] In addition, the water control assembly 14 also includes a speed control device 18 and a temperature sensor 19. The temperature sensor 19 is connected to the speed control device 18, which controls the flow rate of the water pump 16. When the motor first starts running, the heat is relatively low, and the temperature sensor 19 has not yet reached the required temperature to start, so the water pump 16 does not start working. As the heat increases and exceeds the start-up temperature of the temperature sensor 19, the water pump 16 starts working. The temperature sensor 19 continuously monitors the temperature of the motor housing 1, thereby controlling the speed control device 18 and further controlling the pumping speed of the water pump 16. When the temperature is high, the flow rate increases, and the heat dissipation effect is enhanced; when the temperature is low, the flow rate decreases, and the heat dissipation effect is weakened.

[0038] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A motor with a core cooling water pipe embedded in its housing, comprising a motor housing (1), a stator (2), a rotor (3), a shaft (4), a front end cover (5), and a rear end cover (6), characterized in that, The motor housing (1) is provided with a cooling water channel (7). The motor housing (1) and the cooling water channel (7) are integrally formed. The outer side of the motor housing (1) is provided with a water inlet (8) and a water outlet (9). The cooling water channel (7) includes an outer ring water channel (701) and an inner ring water channel (702). The outer ring water channel (701) and the inner ring water channel (702) are connected.

2. The motor with a core cooling water pipe embedded in its housing according to claim 1, characterized in that, The outer ring waterway (701) and the inner ring waterway (702) are asymmetric spiral waterways.

3. The motor with a core cooling water pipe embedded in its housing according to claim 1, characterized in that, The cross-section of the cooling water channel (7) is teardrop-shaped.

4. The motor with a core cooling water pipe embedded in its housing according to claim 1, characterized in that, The inner surface of the cooling water channel (7) is provided with triangular turbulence protrusions (10) at intervals.

5. A motor with a core cooling water pipe embedded in its housing according to claim 1, characterized in that, The outer surface of the motor housing (1) is provided with axial heat dissipation fins (11).

6. A motor with a core cooling water pipe embedded in its housing according to claim 1, characterized in that, A detachable filter screen (12) is provided at the inlet (8) port, and the installation direction of the filter screen (12) is at an angle to the water flow direction.

7. A motor with a core cooling water pipe embedded in its housing according to claim 1, characterized in that, An automatic pressure relief valve (13) is provided on the outside of the motor housing (1), and the automatic pressure relief valve (13) is connected to the cooling water channel (7).

8. A motor with a core cooling water pipe embedded in its housing according to claim 1, characterized in that, It also includes a water control component (14), which includes a water tank (15) and a water pump (16). The water tank (15) and the water pump (16) are connected by a connecting pipe (17). The water pump (16) is connected to the motor inlet (8) by a connecting pipe (17). The motor outlet (9) is connected to the water tank (15) by a connecting pipe (17).

9. A motor with a core cooling water pipe embedded in its housing according to claim 8, characterized in that, The water control component (14) also includes a speed change device (18) and a temperature sensor (19). The temperature sensor (19) is connected to the speed change device (18), and the speed change device (18) controls the flow rate of the water pump (16).

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