Synchronous reluctance motor

Abstract

The utility model relates to the technical field of motors, and discloses a synchronous reluctance motor which comprises a synchronous reluctance motor body, the surface of the synchronous reluctance motor body is sleeved with an annular hollow sleeve plate and provided with cooling fins, one end of the top of each cooling fin extends into the annular space of the annular hollow sleeve plate and is fixedly connected with the annular space of the annular hollow sleeve plate in a sleeved mode, and the other end of each cooling fin extends into the annular space of the annular hollow sleeve plate. An annular gap exists between the surface of the synchronous reluctance motor body and the inner wall of the annular hollow sleeve plate, a water pump and a transition box are installed on one side of the synchronous reluctance motor body, and a liquid conveying pipe is connected between the output end of the water pump and the annular hollow sleeve plate. According to the utility model, cooling liquid in the transition box is pumped through the arranged water pump, and is cooled through the liquid conveying pipe, the return pipe and the annular hollow sleeve plate to circularly flow, so that the circularly flowing cooling liquid is matched with the cooling fins to carry out high-efficiency heat conduction and heat dissipation on the synchronous reluctance motor body; and the heat dissipation efficiency of the synchronous reluctance motor body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to a synchronous reluctance motor. Background Technique

[0002] A synchronous reluctance motor is a new type of AC motor that follows the principle of the minimum magnetic resistance path closure and generates magnetic pulling force (i.e., reluctance torque) through the magnetic resistance change caused by the rotor at different positions to drive the motor to rotate. It has the advantages of simple structure, durability, high efficiency, wide speed regulation range, low cost, etc., and is widely used.

[0003] As a type of motor, the synchronous reluctance motor has the same heat dissipation problem as ordinary motors. With the further development of related technologies in recent years, the patent document with the application number 202020504366.3 in the prior art proposes "a synchronous reluctance motor and a water cooling device, the water cooling device includes a water cooling block, a circulating water pipe, a pump, and a heat dissipation air hood; the water cooling block is installed inside the shell of the synchronous reluctance motor and is connected to the pipeline of the circulating water pipe, the circulating water pipe is equipped with a pump, and the heat dissipation air hood is hollow and has two nozzles and is connected to the pipeline of the circulating water pipe". However, from the perspective of the structural composition of the actual synchronous reluctance motor, if the heat dissipation structure is buried inside the synchronous reluctance motor, additional space needs to be designed for accommodation, which will greatly modify the internal structure of the synchronous reluctance motor, making it difficult and greatly reducing the flexibility of the device in use. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a synchronous reluctance motor, which solves the problems raised in the above background technique.

[0005] The utility model provides the following technical solution: a synchronous reluctance motor, including a synchronous reluctance motor body, an annular hollow sleeve plate is respectively sleeved on the surface of the synchronous reluctance motor body, and heat dissipation fins are installed. One end of the top of the heat dissipation fin extends into the annular space of the annular hollow sleeve plate and is fixedly sleeved with it. There is an annular gap between the surface of the synchronous reluctance motor body and the inner wall of the annular hollow sleeve plate. A water pump and a transition box are installed on one side of the synchronous reluctance motor body. A liquid delivery pipe is connected between the output end of the water pump and the annular hollow sleeve plate, and the input end of the water pump is sleeved inside the transition box. A return pipe is connected between the transition box and the annular hollow sleeve plate.

[0006] Preferably, liquid filling pipe fittings are provided at the bottom of the annular hollow sleeve plate and the top of the transition box. The liquid filling pipe fittings are composed of a liquid filling pipe and a sealing cover. The sealing cover is threadedly connected to one end port of the liquid filling pipe for sealing. The other end of the liquid filling pipe is sleeved on the top of the transition box or the bottom of the annular hollow sleeve plate, thereby providing structural conditions for the sustainable use of the annular hollow sleeve plate and the transition box.

[0007] Preferably, the ends of the infusion tube connected to the annular hollow sleeve plate and the ends of the return tube connected to the annular hollow sleeve plate are both flange head structures, and the flange head structures are fixedly installed on the corresponding surfaces of the annular hollow sleeve plate through screws.

[0008] Preferably, the water pump is installed on the top of the transition box. A support seat is fixedly connected to the surface of one side of the transition box. A threaded hole is formed on the surface of one side of the synchronous reluctance motor body. A relief hole aligned with the threaded hole is formed on one side of the support seat, and the support seat is detachably installed on the synchronous reluctance motor body by screwing a screw through the relief hole and then threadedly connecting it into the threaded hole.

[0009] Preferably, one end of the heat sink extends to the middle surface of the synchronous reluctance motor body and is detachably installed on the middle surface of the synchronous reluctance motor body by screws, improving the flexibility of assembly.

[0010] Preferably, a passive air blowing assembly is arranged between the inside of the annular hollow sleeve plate and the synchronous reluctance motor body. The passive air blowing assembly includes a transmission shaft, a fan blade, a transition baffle and a shaft seal ring. One end of the transmission shaft is sleeved inside the annular hollow sleeve plate through a bearing to ensure the stability of the structural connection, and the shaft seal ring is sleeved in the gap between the transmission shaft and the inner ring structure of the annular hollow sleeve plate to ensure the sealing effect of the structural connection.

[0011] Preferably, the number of the transition baffles is not less than two and they are evenly distributed on the surface of one end of the transmission shaft sleeved inside the annular hollow sleeve plate. The number of the fan blades is also not less than two and they are evenly installed along the circumference of the other end of the transmission shaft. The transition baffle uses the kinetic energy of the reciprocating flow of the coolant inside the annular hollow sleeve plate to synchronously drive the transmission shaft and the fan blade, so that the transmission shaft and the fan blade rotate synchronously to blow air and dissipate heat from the synchronous reluctance motor body.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. The utility model pumps the coolant inside the transition box through the water pump and circulates it through the infusion tube, the return tube and the inside of the annular hollow sleeve plate, and then the circulating coolant cooperates with the heat sink to conduct heat dissipation for the synchronous reluctance motor body with high efficiency, improving the heat dissipation efficiency of the synchronous reluctance motor body.

[0014] 2. The transition box and the synchronous reluctance motor body, the heat sink and the synchronous reluctance motor body, the return pipe and the annular hollow sleeve plate, and the infusion pipe and the annular hollow sleeve plate of the present utility model are all installed and fixed by a detachable locking structure such as screws. Therefore, in the actual application process, it can meet the installation and use requirements in a flexible and modular manner, reducing the degree of modification to the existing synchronous reluctance motor body.

[0015] 3. The passive air blowing assembly provided by the present utility model has multiple transition baffles inside it, which can utilize the kinetic energy of the reciprocating flow of the coolant inside the annular hollow sleeve plate to synchronously drive the transmission shaft and multiple fan blades, so that the transmission shaft and multiple fan blades rotate synchronously to blow air, and perform air blowing heat dissipation on the synchronous reluctance motor body, expanding the heat dissipation method for the synchronous reluctance motor body and improving the heat dissipation efficiency of the synchronous reluctance motor body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the left view schematic diagram of the structure of the present utility model;

[0017] Figure 2 is the three-dimensional schematic diagram of the structure of the present utility model;

[0018] Figure 3 is the partial cross-sectional schematic diagram of the structure of the present utility model;

[0019] Figure 4 is the top view schematic diagram of the structure of the present utility model;

[0020] Figure 5 is the enlarged schematic diagram of the passive air blowing assembly of the structure of the present utility model.

[0021] In the figure: 1. Synchronous reluctance motor body; 2. Annular hollow sleeve plate; 3. Water pump; 4. Transition box; 5. Infusion pipe; 6. Return pipe; 7. Heat sink; 8. Passive air blowing assembly; 81. Transmission shaft; 82. Fan blade; 83. Transition baffle; 84. Shaft seal. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] 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 of 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.

[0023] Embodiment 1

[0024] Please refer to Figures 1-4A synchronous reluctance motor comprises a synchronous reluctance motor body 1, the surface of the synchronous reluctance motor body 1 is respectively covered with an annular hollow sleeve plate 2 and a heat sink 7, one end of the top of the heat sink 7 extends to the inside of the annular space of the annular hollow sleeve plate 2 and is fixedly sleeved therewith, and there is an annular gap between the surface of the synchronous reluctance motor body 1 and the inner wall of the annular hollow sleeve plate 2, a water pump 3 and a transition box 4 are installed on one side of the synchronous reluctance motor body 1, an infusion tube 5 is connected between the output end of the water pump 3 and the annular hollow sleeve plate 2, and the input end of the water pump 3 is sleeved inside the transition box 4, and a return pipe 6 is connected between the transition box 4 and the annular hollow sleeve plate 2;

[0025] The bottom of the annular hollow sleeve 2 and the top of the transition box 4 are both provided with a fluid infusion pipe fitting, which is composed of a fluid infusion pipe and a sealing cover. The sealing cover is threadedly connected to a port at one end of the fluid infusion pipe for sealing, and the other end of the fluid infusion pipe is sleeved on the top of the transition box 4 or the bottom of the annular hollow sleeve 2, thereby providing structural conditions for the sustainable use of the annular hollow sleeve 2 and the transition box 4. The end of the infusion pipe 5 connected to the annular hollow sleeve 2 and the end of the reflux pipe 6 connected to the annular hollow sleeve 2 are both flange head structures, and the flange head structure is installed and fixed to the surface of the corresponding position of the annular hollow sleeve 2 by screws;

[0026] The water pump 3 is installed on the top of the transition box 4, and a support seat is fixedly connected to the surface of one side of the transition box 4. A threaded hole is opened on the surface of one side of the synchronous reluctance motor body 1, and a clearance hole aligned with the threaded hole is opened and closed on one side of the support seat, and the support seat is screwed through the clearance hole and then threaded into the threaded hole, and is detachably installed with the synchronous reluctance motor body 1. One end of the heat sink 7 extends to the middle surface of the synchronous reluctance motor body 1 and is detachably installed with the middle surface of the synchronous reluctance motor body 1 by screws, thereby improving the flexibility of assembly.

[0027] Working principle: During the use of the synchronous reluctance motor body 1, the water pump 3 can be started when needed, and the water pump 3 transports the coolant inside the transition box 4 to the inside of the annular hollow sleeve 2 through the infusion pipe 5, and then the coolant inside the annular hollow sleeve 2 circulates with the coolant inside the transition box 4 through the reflux pipe 6. At the same time, the operating heat of the synchronous reluctance motor body 1 is dissipated through the heat sink 7 by heat conduction, and because one end of the heat sink 7 is in contact with the coolant inside the annular hollow sleeve 2, they can cooperate with each other to perform high-efficiency heat conduction and heat dissipation on the synchronous reluctance motor body 1;

[0028] During the heat dissipation process of the synchronous reluctance motor body 1, the air in the annular gap space between the synchronous reluctance motor body 1 and the annular hollow sleeve plate 2 will be heated synchronously, and then the convection phenomenon of cold and hot air can be used to accelerate the air flow speed on the surface of the synchronous reluctance motor body 1, thereby further optimizing the heat dissipation method and heat dissipation efficiency of the synchronous reluctance motor body 1.

[0029] Embodiment 2

[0030] See also Figures 1-5 A synchronous reluctance motor comprises a synchronous reluctance motor body 1, the surface of the synchronous reluctance motor body 1 is respectively covered with an annular hollow sleeve plate 2 and a heat sink 7, one end of the top of the heat sink 7 extends to the inside of the annular space of the annular hollow sleeve plate 2 and is fixedly sleeved therewith, and there is an annular gap between the surface of the synchronous reluctance motor body 1 and the inner wall of the annular hollow sleeve plate 2, a water pump 3 and a transition box 4 are installed on one side of the synchronous reluctance motor body 1, an infusion tube 5 is connected between the output end of the water pump 3 and the annular hollow sleeve plate 2, and the input end of the water pump 3 is sleeved inside the transition box 4, and a return pipe 6 is connected between the transition box 4 and the annular hollow sleeve plate 2;

[0031] The bottom of the annular hollow sleeve 2 and the top of the transition box 4 are both provided with a fluid infusion pipe fitting, which is composed of a fluid infusion pipe and a sealing cover. The sealing cover is threadedly connected to a port at one end of the fluid infusion pipe for sealing, and the other end of the fluid infusion pipe is sleeved on the top of the transition box 4 or the bottom of the annular hollow sleeve 2, thereby providing structural conditions for the sustainable use of the annular hollow sleeve 2 and the transition box 4. The end of the infusion pipe 5 connected to the annular hollow sleeve 2 and the end of the reflux pipe 6 connected to the annular hollow sleeve 2 are both flange head structures, and the flange head structure is installed and fixed to the surface of the corresponding position of the annular hollow sleeve 2 by screws;

[0032] The water pump 3 is installed on the top of the transition box 4, and a support seat is fixedly connected to the surface of one side of the transition box 4. A threaded hole is opened on the surface of one side of the synchronous reluctance motor body 1, and a clearance hole aligned with the threaded hole is opened and closed on one side of the support seat, and the support seat is screwed through the clearance hole and then threaded into the threaded hole, and is detachably installed with the synchronous reluctance motor body 1. One end of the heat sink 7 extends to the middle surface of the synchronous reluctance motor body 1 and is detachably installed with the middle surface of the synchronous reluctance motor body 1 through screws, thereby improving the flexibility of assembly;

[0033] A passive air delivery assembly 8 is provided between the interior of the annular hollow sleeve plate 2 and the synchronous reluctance motor body 1. The passive air delivery assembly 8 includes a transmission shaft 81, fan blades 82, a transition baffle 83, and a shaft seal ring 84. One end of the transmission shaft 81 is sleeved inside the annular hollow sleeve plate 2 through a bearing to ensure the stability of the structural connection, and the shaft seal ring 84 is sleeved in the gap between the transmission shaft 81 and the inner ring structure of the annular hollow sleeve plate 2 to ensure the sealing effect of the structural connection. The number of the transition baffles 83 is not less than two and they are evenly distributed on the surface of one end of the transmission shaft 81 sleeved inside the annular hollow sleeve plate 2. The number of the fan blades 82 is also not less than two and they are evenly installed along the circumference of the other end of the transmission shaft 81. The transition baffle 83 uses the kinetic energy of the reciprocating flow of the coolant inside the annular hollow sleeve plate 2 to synchronously drive the transmission shaft 81 and the fan blades 82, so that the transmission shaft 81 and the fan blades 82 rotate synchronously to deliver air, and air-blowing heat dissipation is carried out on the synchronous reluctance motor body 1.

[0034] Working principle: During the use of the synchronous reluctance motor body 1, when needed, the water pump 3 can be started. The water pump 3 conveys the coolant inside the transition box 4 to the interior of the annular hollow sleeve plate 2 through the infusion pipe 5, and then the coolant inside the annular hollow sleeve plate 2 circulates with the coolant inside the transition box 4 through the return pipe 6. At the same time, the working heat of the synchronous reluctance motor body 1 is dissipated through heat conduction by the heat sink 7. And because one end of the heat sink 7 is in contact with the coolant inside the annular hollow sleeve plate 2, they can cooperate with each other to conduct heat dissipation on the synchronous reluctance motor body 1 with high efficiency. During the heat dissipation process of the synchronous reluctance motor body 1, the air in the annular gap space between the synchronous reluctance motor body 1 and the annular hollow sleeve plate 2 will be heated synchronously. Then, by using the convection phenomenon of hot and cold air, the air flow speed on the surface of the synchronous reluctance motor body 1 can be accelerated, further optimizing the heat dissipation method and heat dissipation efficiency of the synchronous reluctance motor body 1;

[0035] During the reciprocating flow of the coolant inside the annular hollow sleeve plate 2, multiple transition baffles 83 use the kinetic energy of the reciprocating flow of the coolant inside the annular hollow sleeve plate 2 to synchronously drive the transmission shaft 81 and multiple fan blades 82, so that the transmission shaft 81 and multiple fan blades 82 rotate synchronously to deliver air, and air-blowing heat dissipation is carried out on the synchronous reluctance motor body 1, expanding the heat dissipation method for the synchronous reluctance motor body 1 and improving the heat dissipation efficiency of the synchronous reluctance motor body 1.

[0036] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. At the same time, in the drawings of the present utility model, the filling pattern is only for distinguishing the layers and is not subject to any other limitations.

[0037] Although the 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 principles 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 synchronous reluctance motor, comprising a synchronous reluctance motor body (1), characterized in that: The surface of the synchronous reluctance motor body (1) is respectively sleeved with an annular hollow sleeve plate (2) and a heat sink (7), one end of the top of the heat sink (7) extends into the annular space of the annular hollow sleeve plate (2) and is fixedly sleeved therewith, and an annular gap exists between the surface of the synchronous reluctance motor body (1) and the inner wall of the annular hollow sleeve plate (2); a water pump (3) and a transition box (4) are installed on one side of the synchronous reluctance motor body (1), a liquid infusion tube (5) is connected between the output end of the water pump (3) and the annular hollow sleeve plate (2), and the input end of the water pump (3) is sleeved inside the transition box (4), and a return pipe (6) is connected between the transition box (4) and the annular hollow sleeve plate (2).

2. A synchronous reluctance motor according to claim 1, characterized in that: The bottom of the annular hollow sleeve (2) and the top of the transition box (4) are both provided with a fluid infusion pipe fitting, the fluid infusion pipe fitting is composed of a fluid infusion pipe and a sealing cover, the sealing cover is threadedly connected to a port at one end of the fluid infusion pipe for sealing, and the other end of the fluid infusion pipe is sleeved on the top of the transition box (4) or the bottom of the annular hollow sleeve (2).

3. A synchronous reluctance motor according to claim 1, characterized in that: The end of the infusion tube (5) connected to the annular hollow sleeve (2) and the end of the return tube (6) connected to the annular hollow sleeve (2) are both flange head structures, and the flange head structure is installed and fixed to the surface of the corresponding position of the annular hollow sleeve (2) by screws.

4. A synchronous reluctance motor according to claim 1, characterized in that: The water pump (3) is mounted on the top of the transition box (4); a support seat is fixedly connected to the surface of one side of the transition box (4); a threaded hole is provided on the surface of one side of the synchronous reluctance motor body (1); a clearance hole aligned with the threaded hole is opened and closed on one side of the support seat; the support seat is screwed through the clearance hole and then threadedly connected to the threaded hole, so as to be detachably mounted on the synchronous reluctance motor body (1).

5. The synchronous reluctance motor according to claim 1, characterized in that: One end of the heat sink (7) extends to the middle surface of the synchronous reluctance motor body (1) and is detachably mounted on the middle surface of the synchronous reluctance motor body (1) via screws.

6. A synchronous reluctance motor according to claim 1, characterized in that: A passive air supply component (8) is provided between the interior of the annular hollow sleeve (2) and the synchronous reluctance motor body (1), the passive air supply component (8) comprising a transmission shaft (81), fan blades (82), a transition baffle (83) and a shaft sealing ring (84), one end of the transmission shaft (81) is sleeved inside the annular hollow sleeve (2) via a bearing, and the shaft sealing ring (84) is sleeved in a gap between the transmission shaft (81) and the inner ring structure of the annular hollow sleeve (2).

7. A synchronous reluctance motor according to claim 6, characterized in that: The number of the transition baffles (83) is not less than two and they are equidistantly distributed on the surface of one end of the transmission shaft (81) sleeved inside the annular hollow sleeve plate (2), and the number of the fan blades (82) is not less than two and they are equidistantly installed along the circumference of the other end of the transmission shaft (81).

Images