Squirrel cage type three-phase asynchronous motor with high stability

Abstract

The utility model discloses a squirrel-cage type three-phase asynchronous motor with high stability in the technical field of asynchronous motors, which comprises an asynchronous motor body, a cooling mechanism arranged on the outer side of the asynchronous motor body, a flow guide mechanism arranged on the outer side of the cooling mechanism, and a cooling liquid bin fixedly mounted at the upper end of the asynchronous motor body. The squirrel-cage type three-phase asynchronous motor with high stability is additionally provided with a cooling mechanism and a flow guide mechanism, the cooling mechanism and the flow guide mechanism supplement each other, the cooling mechanism adopts a mode of combining cooling liquid and an aluminum pipe, the aluminum pipe covers the outer wall of the asynchronous motor body, and in cooperation with the low-temperature effect of the cooling liquid, the stability of the motor body is improved, and the stability of the motor body is improved. The asynchronous motor body is further effectively cooled, the abnormal high temperature condition of the asynchronous motor body is avoided, the flow guide mechanism adopts an air guide mode and is used in cooperation with the air channels of the multiple sets of aluminum pipes, the stability of cooling liquid in the aluminum pipes can be rapidly reduced, and then the using reliability and safety of the asynchronous motor body are effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of asynchronous motors, and particularly to a squirrel-cage three-phase asynchronous motor with high stability. Background Technique

[0002] An asynchronous motor, also known as an induction motor, is an AC motor that uses the principle of electromagnetic induction to convert electrical energy into mechanical energy. Its main feature is that there is a speed difference between the rotor and the stator, that is, the speed of the rotor is lower than the rotational magnetic field of the stator. When three-phase alternating current is applied to the stator winding of the asynchronous motor, a rotational magnetic field will be generated inside the stator. This rotational magnetic field will induce a current in the rotor winding, and the interaction between the rotor current and the rotational magnetic field will generate an electromagnetic torque, thereby driving the rotor to rotate.

[0003] The patent document with the application number CN202120977291.5 discloses a three-phase asynchronous motor, which includes a housing, a stator arranged inside the housing, and a rotor arranged inside the housing. The housing is provided with a support seat. The housing includes a shell body, an end cover arranged on the shell body, and a cover shell arranged on the shell body. The end cover is integrally arranged with the shell body. This application has the effect of improving the problem of relatively large noise of the three-phase asynchronous motor. Based on the retrieval of the above patent and the combination with asynchronous motors in the prior art, it is found that when an asynchronous motor is in use, the motor heating usually manifests as an increase in the temperature of the motor housing. In severe cases, it may cause the motor surface to be hot or the internal temperature to be too high, and even cause damage to the motor. Long-term high-temperature operation may lead to a decrease in the efficiency and power factor of the motor. High temperature will accelerate the aging of the internal materials of the motor, shorten the service life of the motor, and severe motor heating may cause the motor to burn out and even trigger safety accidents. Content of the Utility Model

[0004] The purpose of the utility model is to provide a squirrel-cage three-phase asynchronous motor with high stability to solve the problems raised in the above background technique.

[0005] To achieve the above object, the present utility model provides the following technical solutions: A squirrel-cage three-phase asynchronous motor with high stability, including an asynchronous motor body. A cooling mechanism is arranged outside the asynchronous motor body, and a flow guiding mechanism is arranged outside the cooling mechanism. The cooling mechanism includes a coolant tank, a liquid guide pump, a first liquid pipe, a first aluminum pipe, a first aluminum sheet, a second liquid pipe, a second aluminum pipe, a second aluminum sheet, a first liquid collecting pipe, a second liquid collecting pipe, and a connecting pipe. The coolant tank is fixedly installed at the upper end of the asynchronous motor body, the liquid guide pump is fixedly installed at the upper end of the coolant tank, the first liquid pipe is fixedly installed at the left end of the coolant tank, the lower end of the first liquid pipe is fixedly installed with the first aluminum pipe, the interior of the first aluminum pipe is a hollow structure, and the first aluminum sheet is fixedly installed on the outer wall of the first aluminum pipe. The flow guiding mechanism includes a first bracket, a first fan, a second fan, a second bracket, a third fan, and a fourth fan. The first bracket is fixedly installed on the outer wall of the left end of the asynchronous motor body, and the second bracket is fixedly installed on the outer wall of the right end of the asynchronous motor body.

[0006] Optionally, multiple groups of the first aluminum sheets are distributed on the outer wall of the first aluminum pipe from front to back, multiple groups of the first aluminum pipes are distributed on the outer wall of the asynchronous motor body from front to back. The second liquid pipe is fixedly installed at the right end of the coolant tank, and the lower end of the second liquid pipe is fixedly installed with the second aluminum pipe. The interior of the second aluminum pipe is a hollow structure.

[0007] Optionally, the second aluminum sheet is fixedly installed on the outer wall of the second aluminum pipe, multiple groups of the second aluminum sheets are distributed on the outer wall of the second aluminum pipe from front to back, and multiple groups of the second aluminum pipes are distributed on the outer wall of the asynchronous motor body from front to back.

[0008] Optionally, the first liquid collecting pipe is fixedly installed at the lower end of the first aluminum pipe, the second liquid collecting pipe is fixedly installed at the lower end of the second aluminum pipe, and a connecting pipe is installed between the first liquid collecting pipe and the second liquid collecting pipe.

[0009] Optionally, the first fan and the second fan are installed on the first bracket, and the third fan and the fourth fan are installed on the second bracket.

[0010] Compared with the prior art, the beneficial effects of the present utility model are:

[0011] In this utility model, a cooling mechanism and a diversion mechanism are provided. The cooling mechanism utilizes the circulating flow of the coolant to effectively absorb and conduct the heat generated during the operation of the motor, reducing the temperature of the motor housing and the interior, and avoiding problems such as a decrease in motor efficiency, a reduction in power factor, and the aging of internal materials caused by excessive temperature. The application of the liquid delivery pump ensures the continuous circulation of the coolant, enabling the motor to be evenly and stably cooled throughout the entire operation process, improving the motor's thermal management ability. The use of the coolant not only reduces the motor temperature but also reduces the thermal stress on the internal materials of the motor due to high temperature, thereby extending the service life of the motor; the fan of the diversion mechanism blows air on the aluminum tube, increasing the air flow, accelerating the heat dissipation speed of the coolant, and enhancing the cooling effect. The reasonable layout of the first fan, the second fan, the third fan, and the fourth fan enables the coolant to dissipate heat evenly when flowing in the aluminum tube, avoiding local overheating. The air guiding function of the fan accelerates the heat exchange on the surface of the aluminum tube, improving the heat dissipation efficiency of the coolant, and thus more quickly reducing the motor temperature. Description of the Drawings

[0012] Figure 1 is a schematic structural diagram of the utility model in a three-dimensional front view;

[0013] Figure 2 is a schematic structural diagram of the utility model in a planar front view;

[0014] Figure 3 is a schematic structural diagram of the utility model in a planar top view;

[0015] Figure 4 is a schematic structural diagram of the utility model in a three-dimensional top view;

[0016] Figure 5 is a schematic structural diagram of the utility model in a planar right view;

[0017] Figure 6 is a schematic structural diagram of the utility model in a planar left view;

[0018] Figure 7 is a schematic structural diagram of the utility model in a three-dimensional bottom view;

[0019] Figure 8 is a schematic structural diagram of the utility model in a three-dimensional sectional view.

[0020] In the figure: 1. Asynchronous motor body; 2. Cooling mechanism; 201. Coolant storage; 202. Liquid guide pump; 203. First liquid pipe; 204. First aluminum pipe; 205. First aluminum fin; 206. Second liquid pipe; 207. Second aluminum pipe; 208. Second aluminum fin; 209. First liquid collecting pipe; 210. Second liquid collecting pipe; 211. Connecting pipe; 3. Diversion mechanism; 301. First bracket; 302. First fan; 303. Second fan; 304. Second bracket; 305. Third fan; 306. Fourth fan. Detailed implementation

[0021] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation of the present utility model. In addition, terms such as "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0022] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it 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 directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific situations.

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figures 1 to 8, in the embodiment of the present utility model, a squirrel-cage three-phase asynchronous motor with high stability includes an asynchronous motor body 1. A cooling mechanism 2 is arranged on the outer side of the asynchronous motor body 1, and a diversion mechanism 3 is arranged on the outer side of the cooling mechanism 2. The cooling mechanism 2 includes a coolant tank 201, a liquid guide pump 202, a first liquid pipe 203, a first aluminum pipe 204, a first aluminum sheet 205, a second liquid pipe 206, a second aluminum pipe 207, a second aluminum sheet 208, a first liquid collecting pipe 209, a second liquid collecting pipe 210 and a connecting pipe 211. A coolant tank 201 is fixedly installed at the upper end of the asynchronous motor body 1, a liquid guide pump 202 is fixedly installed at the upper end of the coolant tank 201, a first liquid pipe 203 is fixedly installed at the left end of the coolant tank 201, a first aluminum pipe 204 is fixedly installed at the lower end of the first liquid pipe 203. The interior of the first aluminum pipe 204 is a hollow structure, and a first aluminum sheet 205 is fixedly installed on the outer wall of the first aluminum pipe 204. Multiple groups of first aluminum sheets 205 are distributed on the outer wall of the first aluminum pipe 204 from front to back, and multiple groups of first aluminum pipes 204 are distributed on the outer wall of the asynchronous motor body 1 from front to back. A second liquid pipe 206 is fixedly installed at the right end of the coolant tank 201, a second aluminum pipe 207 is fixedly installed at the lower end of the second liquid pipe 206. The interior of the second aluminum pipe 207 is a hollow structure, and a second aluminum sheet 208 is fixedly installed on the outer wall of the second aluminum pipe 207. Multiple groups of second aluminum sheets 208 are distributed on the outer wall of the second aluminum pipe 207 from front to back, and multiple groups of second aluminum pipes 207 are distributed on the outer wall of the asynchronous motor body 1 from front to back. A first liquid collecting pipe 209 is fixedly installed at the lower end of the first aluminum pipe 204, a second liquid collecting pipe 210 is fixedly installed at the lower end of the second aluminum pipe 207, and a connecting pipe 211 is installed between the first liquid collecting pipe 209 and the second liquid collecting pipe 210;

[0025] The coolant tank 201 provides a sufficient coolant capacity to ensure an adequate supply of coolant during the long-term operation of the motor, maintaining a stable cooling effect. The use of the liquid guide pump 202 realizes the forced circulation of the coolant, improves the cooling efficiency and the flow stability of the coolant, and ensures that all parts of the motor can be evenly cooled. The first liquid pipe 203 and the second liquid pipe 206 form the flow channels of the coolant, ensuring that the coolant can smoothly pass through the aluminum pipes around the motor housing, improving the fluidity and heat dissipation efficiency of the coolant; the first aluminum pipe 204 and the second aluminum pipe 207 serve as the heat conduction channels of the coolant. Utilizing the high thermal conductivity of aluminum, they quickly conduct heat, effectively reducing the motor temperature and preventing heat accumulation. The first aluminum sheet 205 and the second aluminum sheet 208 are used to increase the cooling area and enhance the heat exchange efficiency, further accelerating the temperature reduction of the coolant; the first liquid collecting pipe 209, the second liquid collecting pipe 210 and the connecting pipe 211 ensure the circulating flow of the coolant;

[0026] The flow guiding mechanism 3 includes a first bracket 301, a first fan 302, a second fan 303, a second bracket 304, a third fan 305 and a fourth fan 306. The first bracket 301 is fixedly installed on the outer wall of the left end of the asynchronous motor body 1, and the second bracket 304 is fixedly installed on the outer wall of the right end of the asynchronous motor body 1. The first fan 302 and the second fan 303 are installed on the first bracket 301, and the third fan 305 and the fourth fan 306 are installed on the second bracket 304. The first bracket 301 and the second bracket 304 provide the installation foundation for the fans and the aluminum pipes, ensuring the structural stability and cooling efficiency. At the same time, the design of the brackets will not have an adverse impact on the overall structure of the motor. The airflows generated by the first fan 302, the second fan 303, the third fan 305 and the fourth fan 306 increase the heat exchange efficiency on the surface of the aluminum pipes, accelerate the cooling speed of the coolant, and also help to quickly take away the heat inside the motor, improving the heat dissipation capacity of the motor.

[0027] The working principle of the present utility model is as follows: The high-stability squirrel-cage three-phase asynchronous motor of the present utility model is additionally provided with a cooling mechanism 2 and a flow guiding mechanism 3. Before using the high-stability squirrel-cage three-phase asynchronous motor of the present utility model, it is necessary to pre-connect the liquid delivery pump 202, the first fan 302, the second fan 303, the third fan 305 and the fourth fan 306 to electricity and connect them to the control terminal. When using the high-stability squirrel-cage three-phase asynchronous motor of the present utility model, the cooling mechanism 2 and the flow guiding mechanism 3 are synchronously enabled. The liquid delivery pump 202 is started to pump the coolant, and the coolant in the second liquid pipe 206 is pumped into the first liquid pipe 203, so that the coolant flows in multiple groups of first aluminum pipes 204, and flows through the first liquid collecting pipe 209 and the connecting pipe 211 to the second liquid collecting pipe 210 and the second aluminum pipe 207 to form a circulating flow guiding structure, which is wrapped outside the asynchronous motor body 1. At the same time, the first fan 302 and the second fan 303 blow air onto multiple groups of first aluminum pipes 204 to accelerate the air flow on the first aluminum pipes 204, thereby effectively reducing the temperature of the coolant in the first aluminum pipes 204. Similarly, the third fan 305 and the fourth fan 306 blow air onto multiple groups of second aluminum pipes 207 to accelerate the air flow on the second aluminum pipes 207, thereby effectively reducing the temperature of the coolant in the second aluminum pipes 207, achieving a refrigeration effect. To sum up, the cooling mechanism 2 and the flow guiding mechanism 3 complement each other. The cooling mechanism 2 adopts the combination of the coolant and the aluminum pipes, covering the aluminum pipes on the outer wall of the asynchronous motor body 1, and cooperating with the low temperature effect of the coolant to effectively cool the asynchronous motor body 1 and prevent the asynchronous motor body 1 from having abnormal high temperature. The flow guiding mechanism 3 adopts the air guiding method and is used in cooperation with the air ducts of multiple groups of aluminum pipes, which can quickly reduce the stability of the coolant in the aluminum pipes, thereby effectively improving the reliability and safety of the use of the asynchronous motor body 1.

[0028] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A squirrel-cage type three-phase asynchronous motor with high stability, comprising an asynchronous motor body (1), characterized in that: A cooling mechanism (2) is provided on the outer side of the asynchronous motor body (1), and a flow guiding mechanism (3) is provided on the outer side of the cooling mechanism (2). The cooling mechanism (2) includes a coolant tank (201), a liquid guiding pump (202), a first liquid pipe (203), a first aluminum pipe (204), a first aluminum fin (205), a second liquid pipe (206), a second aluminum pipe (207), a second aluminum fin (208), a first liquid collecting pipe (209), a second liquid collecting pipe (210), and a connecting pipe (211). A coolant tank (201) is fixedly installed at the upper end of the asynchronous motor body (1), a liquid guiding pump (202) is fixedly installed at the upper end of the coolant tank (201), a first liquid pipe (203) is fixedly installed at the left end of the coolant tank (201), a first aluminum pipe (204) is fixedly installed at the lower end of the first liquid pipe (203), the interior of the first aluminum pipe (204) is a hollow structure, and a first aluminum fin (205) is fixedly installed on the outer wall of the first aluminum pipe (204). The flow guiding mechanism (3) includes a first bracket (301), a first fan (302), a second fan (303), a second bracket (304), a third fan (305), and a fourth fan (306). A first bracket (301) is fixedly installed on the outer wall of the left end of the asynchronous motor body (1), and a second bracket (304) is fixedly installed on the outer wall of the right end of the asynchronous motor body (1).

2. A squirrel-cage type three-phase asynchronous motor with high stability according to claim 1, characterized in that: Multiple groups of the first aluminum fins (205) are distributed on the outer wall of the first aluminum pipe (204) from front to back, and multiple groups of the first aluminum pipes (204) are distributed on the outer wall of the asynchronous motor body (1) from front to back. A second liquid pipe (206) is fixedly installed at the right end of the coolant tank (201), and a second aluminum pipe (207) is fixedly installed at the lower end of the second liquid pipe (206). The interior of the second aluminum pipe (207) is a hollow structure.

3. A squirrel-cage type three-phase asynchronous motor with high stability according to claim 1, characterized in that: A second aluminum fin (208) is fixedly installed on the outer wall of the second aluminum pipe (207), multiple groups of the second aluminum fins (208) are distributed on the outer wall of the second aluminum pipe (207) from front to back, and multiple groups of the second aluminum pipes (207) are distributed on the outer wall of the asynchronous motor body (1) from front to back.

4. A squirrel-cage type three-phase asynchronous motor with high stability according to claim 1, characterized in that: A first liquid collecting pipe (209) is fixedly installed at the lower end of the first aluminum pipe (204), a second liquid collecting pipe (210) is fixedly installed at the lower end of the second aluminum pipe (207), and a connecting pipe (211) is installed between the first liquid collecting pipe (209) and the second liquid collecting pipe (210).

5. A squirrel-cage type three-phase asynchronous motor with high stability according to claim 1, characterized in that: A first fan (302) and a second fan (303) are installed on the first bracket (301), and a third fan (305) and a fourth fan (306) are installed on the second bracket (304).

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