Anti-freezing device for permanent magnet motor

Abstract

The utility model discloses a kind of permanent magnet motor anti-freezing devices, it is related to motor maintenance technical field.It includes the closure cover of sealing sleeve connection in the outside of motor casing;Motor casing side wall is opened with multiple groups of air hole;Closure cover inside is connected with temperature control electric heater by mounting member;The heating end of temperature control electric heater is fixed with multiple closed heat pipes;Closed heat pipe inside is filled with heat-conducting liquid;Multiple closed heat pipes are circumferentially corresponded around the outside of motor casing;Multiple closed heat pipes and every group of air hole one-to-one correspond.The beneficial effects of the utility model are that it can reduce the loss of heat entering the inside of motor casing, and the anti-freezing effect is better.

Description

Technical Field

[0001] This utility model relates to the field of electric motor maintenance technology, and in particular to an antifreeze device for permanent magnet electric motors. Background Technology

[0002] Permanent magnet motors are DC motors that use permanent magnets to create a magnetic field. Compared with electrically excited motors, they have advantages such as simple structure, small size, low loss, and high efficiency. They are widely used and can be found in almost all fields of industry and agriculture.

[0003] Permanent magnet motors have a wide range of applications, resulting in diverse and complex operating environments. Although they are durable and resistant to harsh environments, they often struggle to function properly in extremely cold temperatures, necessitating anti-freezing measures. However, due to the enclosed nature of the motor casing, the heat supplied by traditional anti-freezing devices is significantly reduced when it enters the casing, leading to energy waste and poor performance. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a permanent magnet motor antifreeze device that reduces the loss of heat entering the motor housing and provides a better antifreeze effect, in response to the above-mentioned technical deficiencies.

[0005] The technical solution adopted by this utility model is as follows: a permanent magnet motor antifreeze device is provided, including a sealed cover that is sealed and fitted to the outside of the motor housing; multiple sets of vent holes are opened on the side wall of the motor housing; a temperature control electric heater is connected inside the sealed cover through an installation component; multiple sealed heat pipes are fixed to the heating end of the temperature control electric heater; the sealed heat pipes are filled with heat-conducting liquid; the multiple sealed heat pipes are circumferentially arranged around the outside of the motor housing; the multiple sealed heat pipes correspond one-to-one with each set of vent holes.

[0006] To further optimize this technical solution, a temperature sensor is fixed on the motor housing of a permanent magnet motor antifreeze device; the probe of the temperature sensor is sealed and extends into the inside of the motor housing; the signal output terminal of the temperature sensor is connected to the control circuit of the temperature-controlled heater.

[0007] Further optimizing this technical solution, an installation component for a permanent magnet motor antifreeze device includes a support ring that is sleeved and rotated outside the motor housing, and an extension rod fixed to a temperature-controlled heater; a sealed heat pipe is connected to the support ring; the extension rod is coaxial with the motor housing; the extension rod passes through a sealed cover and is fixed with a handle.

[0008] To further optimize this technical solution, a micro-circulating fan is fixed inside the sealed cover of a permanent magnet motor antifreeze device.

[0009] To further optimize this technical solution, the enclosure of a permanent magnet motor antifreeze device is a hollow structure, and its interior is filled with antifreeze.

[0010] The beneficial effects of this utility model are as follows: The temperature-controlled heater heats the heat-conducting fluid inside the sealed heat pipe. The fluid guides the heat, allowing for more even heat dissipation from the entire heat pipe. With the help of vents on the motor housing, the heat emitted by the heat pipe is transferred more directly to the motor housing, reducing heat loss and providing better freeze protection for the permanent magnet motor. The heat-conducting fluid's role is to conduct heat more evenly through the sealed heat pipe, enabling more comprehensive heat dissipation and allowing the heat generated by the temperature-controlled heater to be transferred and dissipated more quickly along the heat pipe. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the radial cross-section of the outer structure of the motor housing.

[0012] In the diagram, 1 is the motor housing; 2 is the enclosure; 3 is the vent; 4 is the temperature-controlled heater; 5 is the enclosed heat pipe; 6 is the temperature sensor; 7 is the support ring; 8 is the extension rod; 9 is the handle; and 10 is the miniature circulating fan. Detailed Implementation

[0013] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0014] like Figure 1-2 As shown, a permanent magnet motor antifreeze device includes a sealed cover 2 that is sealed and fitted onto the outside of the motor housing 1; multiple sets of vent holes 3 are opened on the side wall of the motor housing 1; a temperature-controlled electric heater 4 is connected inside the sealed cover 2 through a mounting component; multiple sealed heat pipes 5 are fixed to the heating end of the temperature-controlled electric heater 4; the sealed heat pipes 5 are filled with heat-conducting liquid; the multiple sealed heat pipes 5 are circumferentially arranged around the outside of the motor housing 1; the multiple sealed heat pipes 5 correspond one-to-one with each set of vent holes 3.

[0015] In cold weather, the temperature-controlled heater 4 can be activated to heat the sealed heat pipe 5. The heat is absorbed, conducted, and dissipated by the heat-conducting fluid, allowing the sealed heat pipe 5 to dissipate heat evenly. Since each sealed heat pipe 5 corresponds to one of the vent holes 3, the heat dissipated by the sealed heat pipe 5 can directly enter the motor housing 1 through the vent holes 3, avoiding heat loss caused by the motor housing 1 obstructing the flow of heat. This results in more direct heating of the internal components of the permanent magnet motor and better antifreeze performance. Furthermore, the enclosure 2 ensures that the motor remains in a sealed environment, preventing any impact on the reliability of motor operation due to the opening of the vent holes 3.

[0016] The temperature-controlled electric heater 4 can adjust the heating level to ensure that the heat dissipation is appropriate, avoiding problems such as insufficient heat or excessive heat waste.

[0017] like Figure 1 As shown, a temperature sensor 6 is fixed on the motor housing 1; the probe of the temperature sensor 6 is sealed and extends into the inside of the motor housing 1; the signal output terminal of the temperature sensor 6 is connected to the control circuit of the temperature-controlled heater.

[0018] Temperature sensor 6 can detect the ambient temperature inside the motor housing 1. When the detected temperature drops to a preset value, the signal is transmitted to the control circuit of the temperature-controlled heater, and the temperature-controlled heater is activated.

[0019] like Figure 1-2 As shown, the mounting component includes a support ring 7 that is sleeved and rotated outside the motor housing 1, and an extension rod 8 fixed to the temperature-controlled heater 4; a closed heat pipe 5 is connected to the support ring 7; the extension rod 8 is coaxial with the motor housing 1; the extension rod 8 passes through the closed cover 2 in a sealed manner and is fixed with a handle 9.

[0020] By rotating the handle 9 at a specific angle, the rotation of the support ring 7 allows the closed heat pipe 5 to move around the outside of the motor housing 1, so that the closed heat pipe 5 can be offset from the vent 3, and the vent 3 can be fully exposed. This setting helps to fully dissipate heat from the internal components of the permanent magnet motor when used in hot environments.

[0021] like Figure 1 As shown, a miniature circulating fan 10 is fixed inside the enclosed cover 2. The miniature circulating fan 10 enables heat to flow more fully and quickly, improving the efficiency of antifreeze heating.

[0022] like Figure 1 As shown, the enclosure 2 is a hollow structure filled with antifreeze. The antifreeze further isolates the motor from the cold external environment, improving its overall antifreeze performance.

[0023] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A permanent magnet motor antifreeze device, characterized in that: The enclosure includes a sealed cover (2) that is fitted onto the outside of the motor housing (1); the side wall of the motor housing (1) has multiple sets of vent holes (3); a temperature-controlled electric heater (4) is connected inside the sealed cover (2) via an installation component; multiple sealed heat pipes (5) are fixed to the heating end of the temperature-controlled electric heater (4); the sealed heat pipes (5) are filled with heat-conducting liquid; the multiple sealed heat pipes (5) are circumferentially arranged around the outside of the motor housing (1); the multiple sealed heat pipes (5) correspond one-to-one with each set of vent holes (3).

2. The antifreeze device for a permanent magnet motor according to claim 1, characterized in that: A temperature sensor (6) is fixed on the motor housing (1); the probe of the temperature sensor (6) is sealed and extends into the inside of the motor housing (1); the signal output terminal of the temperature sensor (6) is connected to the control circuit of the temperature control heater.

3. The antifreeze device for a permanent magnet motor according to claim 1, characterized in that: The mounting components include a support ring (7) that is sleeved and rotated outside the motor housing (1), and an extension rod (8) fixed on the temperature-controlled heater (4); a closed heat pipe (5) is connected to the support ring (7); the extension rod (8) is coaxial with the motor housing (1); the extension rod (8) passes through the closed cover (2) and is fixed with a handle (9).

4. The antifreeze device for a permanent magnet motor according to claim 1, characterized in that: A miniature circulating fan (10) is fixed inside the enclosed cover (2).

5. The antifreeze device for a permanent magnet motor according to claim 1, characterized in that: The enclosed cover (2) is a hollow structure and its interior is filled with antifreeze.

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