Liquid cooling motor stator leak detection device

Abstract

The utility model discloses a liquid-cooled motor stator leak hunting device which comprises an upper cover cylinder, a lower cover cylinder and an inflating mechanism. An air inlet is formed in the upper cover cylinder or the lower cover cylinder; the bottom of the upper cover cylinder is hermetically connected with the top of the cooling water tank, and the top of the lower cover cylinder is hermetically connected with the bottom of the cooling water tank; the inflating mechanism comprises an air pump and an inflating pipe, and the inflating pipe is communicated between the air pump and the air inlet. The leak detection device can detect whether the stator cooling water tank has a leak, and has the advantages of simple structure, simplicity and convenience in operation and the like.

Description

Technical Field

[0001] The utility model relates to a sealing detection device, in particular to a liquid-cooling motor stator leakage detection device. Background Art

[0002] Motors are key devices for converting mechanical energy into electrical energy. They play an irreplaceable role in industrial production and are widely used in industrial automation, new energy vehicles, robotics, and other fields. With the continuous development and innovation of science and technology, motors are gradually developing towards high energy density, high power density, high speed, high frequency, and high capacity. However, as motor capacity and operating power continue to increase, the temperature of the motor's internal working components rises excessively. Severely insufficient heat dissipation efficiency can lead to high-temperature failure of internal insulation materials and irreversible demagnetization of the materials, thus affecting the motor's operating efficiency and service life, and causing irreversible damage to the motor's safe operation. To maintain the motor's optimal operating condition for a long time, the motor's heat dissipation performance is a decisive factor to consider.

[0003] Existing motor cooling methods primarily include air cooling and water cooling. Air cooling suffers from low heat dissipation efficiency, particularly when the motor is operating continuously. Furthermore, air cooling is noisy and unsuitable for applications with stringent noise control requirements. Therefore, simple air cooling cannot meet motor cooling requirements and is gradually being replaced by liquid cooling systems, which offer greater cooling performance.

[0004] A common structure of existing water-cooled motors includes a housing, a cooling water tank, a stator, and a rotor. The stator and rotor are located within the inner cavity of the cooling water tank, which is also located within the inner cavity of the housing. Cooling water is passed between the cooling water tank and the housing to dissipate heat from the stator. However, existing water-cooled motors still have the following shortcomings:

[0005] During use, the cooling water will corrode the outer wall of the inner shell, and perforation may occur over a long period of time, causing the cooling water to enter the inner cavity of the inner shell and come into contact with the stator, posing a safety hazard. Utility Model Content

[0006] The purpose of the utility model is to overcome the above-mentioned problems and provide a liquid-cooled motor stator leakage detection device, which can detect whether there are leaks in the stator cooling water tank and has the advantages of simple structure and easy operation.

[0007] The purpose of the utility model is achieved through the following technical solutions:

[0008] A liquid-cooled motor stator leakage detection device comprises an upper cover tube, a lower cover tube and an air pumping mechanism;

[0009] An air inlet is provided on the upper cover tube or the lower cover tube; the bottom of the upper cover tube is sealedly connected to the top of the cooling water tank, and the top of the lower cover tube is sealedly connected to the bottom of the cooling water tank;

[0010] The air pumping mechanism includes an air pump and an air pumping pipe, and the air pumping pipe is connected between the air pump and the air inlet.

[0011] The working principle of the above-mentioned liquid-cooled motor stator leakage detection device is as follows:

[0012] During operation, first seal the bottom of the cooling water tank with the top of the lower cover tube, and then seal the bottom of the upper cover tube with the top of the cooling water tank; start the air pump and pump air into the upper cover tube or the lower cover tube through the air pumping pipe; if there is no leak in the cooling water tank, there will be no air leakage; if there is a leak in the cooling water tank, the gas pumped in will leak out from the leak. By finding the location of the leak, the location of the leak can be known, thereby completing the leak detection work.

[0013] In a preferred embodiment of the present invention, the air inlet is arranged at the top of the upper cover tube, and a joint connected to the air pumping pipe is provided at the air inlet.

[0014] In a preferred embodiment of the present invention, a lifting ring is provided on the top of the upper cover tube, so as to facilitate the movement of the upper cover tube with the assistance of a crane.

[0015] In a preferred embodiment of the present invention, the top and bottom outer walls of the cooling water trough are both provided with sealing grooves, and sealing rings are provided in the sealing grooves, thereby achieving a sealed connection between the cooling water trough and the upper cover tube and the lower cover tube.

[0016] A preferred solution of the present invention further includes a locking structure for locking the upper cover tube and the lower cover tube on the cooling water tank.

[0017] Furthermore, the locking structure is composed of a push-pull buckle.

[0018] Furthermore, one end of the push-pull buckle is fixed to the upper cover tube, and the other end of the push-pull buckle is fixed to the lower cover tube.

[0019] Furthermore, at least two push-pull buckles are provided and are evenly distributed along the circumferential direction.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The leakage detection device of the utility model seals the upper cover tube and the lower cover tube above and below the cooling water tank, and pumps air into the upper cover tube or the lower cover tube. By observing whether there is leakage, it can be known whether there is a leak in the cooling water tank. It is not only simple in structure but also easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the liquid-cooled motor stator leakage detection device of the present invention in a working state.

[0023] Figure 2 This is a cross-sectional view of the liquid-cooled motor stator leakage detection device of the present invention in a working state. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described below in conjunction with embodiments and drawings, but the implementation methods of the present invention are not limited thereto.

[0025] See also Figure 1-2 The liquid-cooled motor stator leakage detection device of this embodiment includes an upper cover tube 1, a lower cover tube 2 and an air pumping mechanism; an air inlet is provided at the top of the upper cover tube 1 (or is provided on the lower cover tube 2); the bottom of the upper cover tube 1 is sealed with the top of the cooling water tank 3, and the top of the lower cover tube 2 is sealed with the bottom of the cooling water tank 3; the air pumping mechanism (not shown in the figure) includes an air pump and an air pumping pipe, the air pumping pipe is connected between the air pump and the air inlet, and a joint 4 connected to the air pumping pipe is provided at the air inlet.

[0026] See also Figure 1-2 A lifting ring 5 is provided on the top of the upper cover tube 1 to facilitate the movement of the upper cover tube 1 with the assistance of a crane.

[0027] See also Figure 2 The top and bottom outer walls of the cooling water tank 3 are both provided with sealing grooves, and sealing rings are provided in the sealing grooves, thereby achieving a sealed connection between the cooling water tank 3 and the upper cover tube 1 and the lower cover tube 2.

[0028] See also Figure 1-2 This embodiment also includes a locking structure for locking the upper cover tube 1 and the lower cover tube 2 on the cooling water tank 3.

[0029] Furthermore, the locking structure is composed of a push-pull buckle 6.

[0030] Furthermore, one end of the push-pull buckle 6 is fixed to the upper cover tube 1 , and the other end of the push-pull buckle 6 is fixed to the lower cover tube 2 .

[0031] Furthermore, at least two push-pull buckles 6 are provided and are evenly distributed along the circumferential direction.

[0032] See also Figure 1-2 The working principle of the liquid-cooled motor stator leakage detection device of this embodiment is as follows:

[0033] During operation, first seal the bottom of the cooling water tank 3 with the top of the lower cover tube 2, and then seal the bottom of the upper cover tube 1 with the top of the cooling water tank 3; start the air pump and pump air into the upper cover tube 1 or the lower cover tube 2 through the air pumping pipe; if there is no leak in the cooling water tank 3, there will be no air leakage; if there is a leak in the cooling water tank 3, the gas pumped in will leak out from the leak, and the location of the leak can be known by finding the location of the leak, thereby completing the leak detection work.

[0034] The above is a preferred embodiment of the present invention, but the embodiment of the present invention is not limited to the above content. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention should be considered as equivalent replacement methods and are included in the scope of protection of the present invention.

Claims

1. A liquid-cooled motor stator leakage detection device, characterized in that: It includes an upper cover tube, a lower cover tube and an air pumping mechanism; An air inlet is provided on the upper cover tube or the lower cover tube; the bottom of the upper cover tube is sealedly connected to the top of the cooling water tank, and the top of the lower cover tube is sealedly connected to the bottom of the cooling water tank; The air pumping mechanism includes an air pump and an air pumping pipe, and the air pumping pipe is connected between the air pump and the air inlet.

2. The liquid-cooled motor stator leakage detection device according to claim 1, characterized in that: The air inlet is arranged at the top of the upper cover tube, and a joint connected to the air pumping pipe is provided at the air inlet.

3. The liquid-cooled motor stator leakage detection device according to claim 1, characterized in that: A hanging ring is provided on the top of the upper cover tube.

4. The liquid-cooled motor stator leakage detection device according to claim 1, characterized in that: The outer walls of the top and bottom of the cooling water tank are both provided with sealing grooves, and sealing rings are both provided in the sealing grooves.

5. The liquid-cooled motor stator leakage detection device according to claim 1, characterized in that: It also includes a locking structure for locking the upper cover tube and the lower cover tube on the cooling water tank.

6. The liquid-cooled motor stator leakage detection device according to claim 5, characterized in that: The locking structure is composed of a push-pull buckle.

7. The liquid-cooled motor stator leakage detection device according to claim 6, characterized in that: One end of the push-pull buckle is fixed on the upper cover tube, and the other end of the push-pull buckle is fixed on the lower cover tube.

8. The liquid-cooled motor stator leakage detection device according to claim 6, characterized in that: There are at least two push-pull buckles and they are evenly distributed along the circumferential direction.

Images