Motor with intelligent cooling unit

Abstract

The invention relates to a motor with an intelligent cooling unit applied to the field of motors, through the arrangement of the intelligent cooling unit, a circulating heat dissipation channel can be formed on the surface and the edge corners of a motor body, and a plurality of medium strips and heat dissipation fins are arranged in a mutually interpenetrating manner. Heat adsorbed in the heat dissipation fins can be firstly and actively taken away by the heat dissipation fins, then forced convection heat dissipation can be carried out at the outer ends of the heat dissipation fins, and compared with the prior art, the heat dissipation rate is greatly increased through double cooperation of the heat dissipation fins and the heat dissipation fins. In addition, under the arrangement of the variable flow unit in the medium strip, the flow of the circulation channel of the cooling medium in the medium strip can be adaptively changed according to the actual temperature, and the channel and the circulation path of the cooling medium in the medium strip can be adaptively changed to adapt to the stable operation of the motor under different conditions. And meanwhile, the cooling medium can be fully utilized, and the energy-saving effect is achieved.

Description

Technical Field

[0001] The present invention relates to an electric motor, and in particular to an electric motor with an intelligent cooling unit applied in the field of electric motors. Background Art

[0002] An electric motor converts electrical energy into mechanical energy. It uses energized coils (also known as stator windings) to generate a rotating magnetic field, which acts on a rotor (such as a squirrel-cage aluminum frame) to generate magneto-electrodynamic torque. Electric motors are categorized as DC and AC motors based on their power source. The majority of electric motors in power systems are AC motors, which can be synchronous or asynchronous (where the stator magnetic field speed is not synchronized with the rotor rotational speed).

[0003] During use, electric motors often generate a lot of heat, and the accumulation of heat can easily affect the stable operation of the motor. In the prior art, the heat dissipation of the motor is often achieved by increasing the heat dissipation area through heat dissipation fins. For some areas with more complex working conditions, cooling fans are also added to accelerate heat dissipation through forced convection. For example, the Chinese patent specification with publication number CN118677176B discloses a low-speed three-phase synchronous motor, and the Chinese patent specification with publication number CN116979755B discloses an explosion-proof three-phase asynchronous motor with high-efficiency heat dissipation function. However, generally speaking, the ambient temperature in areas with more complex working conditions is relatively high, resulting in a limited effect of forced convection heat dissipation, which affects the stability of the motor. Summary of the Invention

[0004] In view of the above-mentioned prior art, the present invention aims to solve the technical problem that the heat dissipation method of heat dissipation fins reinforced convection has limited heat dissipation effect, which affects the stability of the motor operation.

[0005] In order to solve the above problems, the present invention provides an electric motor with an intelligent cooling unit, comprising a motor body with a controller, a plurality of uniformly distributed heat dissipation fins fixedly connected to the front and rear outer ends of the motor body, and a plurality of uniformly distributed heat dissipation fins fixedly connected to the front and rear ends of the motor body. The intelligent cooling unit comprises two angle tubes respectively fixedly attached to the outer ends of the axial edges of the motor body, two liquid collecting tubes respectively fixedly connected between the two angle tubes, and a plurality of uniformly distributed dielectric strips respectively fixedly connected between the two liquid collecting tubes. The plurality of heat dissipation fins are respectively located between two adjacent dielectric strips, one end of the two angle tubes away from the output shaft of the motor body is fixedly connected to a liquid inlet pipe, and the middle part of the liquid collecting tube away from the side of the output shaft of the motor body is fixedly connected to a liquid discharge pipe, the liquid inlet pipe and the discharge pipe are both fixedly passed through the end cover plate of the motor body and extend to the outside of the motor body, a temperature sensor is installed on the discharge pipe, and the temperature sensor is connected to the controller signal;

[0006] The current conversion unit in the dielectric strip includes a current conversion plate and a current partition fixedly connected to the inner wall of the dielectric strip away from the motor body. The current conversion plate includes two current conversion plates, and the end of the current partition extends between the two current conversion plates.

[0007] In the above-mentioned electric motor with an intelligent cooling unit, through the setting of the intelligent cooling unit, when the surface temperature of the motor is too high, its surface can be actively cooled without affecting its forced convection cooling. The two work together to greatly accelerate the heat dissipation effect.

[0008] As a further improvement of the present application, both ends of the liquid collecting tube close to the output end of the motor body are respectively communicated with the two corner tubes, and the other liquid collecting tube is not communicated with the corner tube.

[0009] As a further improvement of the present application, the width of the dielectric strip is smaller than the width of the cooling fin, and the width of the dielectric strip is not less than half the width of the cooling fin, and the length of the flow partition along the axial direction of the motor body is not greater than 2 / 3 of the length of the cooling fin.

[0010] As a further improvement of the present application, the flow partition includes a positioning segment fixedly connected to the dielectric strip and a self-changing segment fixedly connected to the end of the positioning segment. The self-changing segment is an elastic structure, and the positioning segment is a hard structure.

[0011] As a further improvement of the present application, the side of the self-converting section is fully sealed, and at least two electric push rods are fixedly connected between the two current conversion slices, and the electric push rods are connected to the controller signal.

[0012] As another improved supplement of the present application, the two axial ends of the flow partition are not sealed, and a surface increasing component is fixedly connected between the two flow converter sheets.

[0013] As another improved supplement to the present application, the surface-increasing component includes a plurality of vertically arranged vertical sheets, two adjacent vertical sheets are fixedly connected to two current converter sheets respectively, and the plurality of vertical sheets do not contact each other, and the current converter sheets and the vertical sheets are both made of high thermal conductivity materials.

[0014] As another improved supplement to the present application, the surface-increasing component includes a transverse groove fixedly connected to the upper converter plate and a transverse convex strip fixedly connected to the lower converter plate, and the transverse groove and the transverse convex strip are both arranged along the axial direction of the motor body, and the transverse groove and the transverse convex strip match each other.

[0015] In summary, through the setting of the intelligent cooling unit, a circulating heat dissipation path can be formed on the surface and edge corners of the motor body, wherein multiple dielectric strips and heat dissipation fins are interspersed with each other, so that the heat adsorbed in the heat dissipation fins can be actively taken away by them first, and secondly, the outer ends of the heat dissipation fins can also perform forced convection heat dissipation. The dual cooperation of the two greatly accelerates the heat dissipation rate compared with the existing technology; in addition, under the setting of the current conversion unit in the dielectric strip, the flow rate of the circulation channel of the cooling medium inside it can be adaptively changed according to the actual temperature, and the channel and circulation path of the cooling medium inside it can also be adaptively changed to adapt to the stable operation of the motor under different conditions, and at the same time, the cooling medium can be fully utilized to achieve energy-saving effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a right side perspective view of the first embodiment of the present application;

[0017] Figure 2 This is a left side perspective view of the first embodiment of the present application;

[0018] Figure 3 This is a front perspective view of two groups of intelligent cooling units according to the first embodiment of the present application;

[0019] Figure 4 This is a rear perspective view of the intelligent cooling unit according to the first embodiment of the present application;

[0020] Figure 5 This is a side schematic diagram of the first embodiment of the present application;

[0021] Figure 6 This is a front view of a dielectric strip according to a first embodiment of the present application;

[0022] Figure 7 This is a schematic side view of a cross section of the first embodiment of the present application when the distance between the two flow converter plates is the smallest and the flow channel cross section is the largest;

[0023] Figure 8 This is a schematic side view of a cross section of the first embodiment of the present application when the distance between the two flow converter plates increases and the flow channel cross section increases;

[0024] Figure 9 This is a schematic diagram of the change process of the flow separator in the first embodiment of the present application;

[0025] Figure 10 This is a side view of the heat dissipation fin portion of the second embodiment of the present application;

[0026] Figure 11 Schematic diagram of the surface-increasing component before and after the change of the second embodiment of the present application;

[0027] Figure 12 This is a schematic diagram of the surface-enhancing assembly of the third embodiment of the present application when closed;

[0028] Figure 13 This is a schematic diagram of the third embodiment of the present application after the surface-increasing assembly is opened to open the flow channel inside the flow-blocking plate;

[0029] Description of the numbers in the figure:

[0030] 1 motor body, 2 cooling fins, 31 corner tubes, 32 liquid collecting tubes, 33 dielectric strips, 301 liquid inlet pipes, 302 liquid discharge pipes, 4 flow converter plates, 41 flow converter plates, 421 horizontal concave strips, 422 horizontal convex strips, 43 vertical plates, 5 flow partitions, 51 self-changing sections, 52 positioning sections, 501 electric push rods. DETAILED DESCRIPTION

[0031] The following describes three implementation methods of the present application in detail with reference to the accompanying drawings.

[0032] The first implementation method:

[0033] Figure 1-2 As shown, a motor with an intelligent cooling unit includes a motor body 1 with a controller, a plurality of evenly distributed heat dissipation fins 2 are fixedly connected to the front and rear ends of the motor body 1, and the front and rear ends of the motor body 1 are fixedly connected to the intelligent cooling unit. Figure 3-4The intelligent cooling unit includes two angle tubes 31 respectively fixedly attached to the outer ends of the axial edges of the motor body 1, two liquid collecting tubes 32 respectively fixedly connected between the two angle tubes 31, and a plurality of uniformly distributed dielectric strips 33 respectively fixedly connected between the two liquid collecting tubes 32. The two ends of the liquid collecting tube 32 near the output end of the motor body 1 are respectively communicated with the two angle tubes 31. During cooling, the cooling medium enters the two angle tubes 31 along the two liquid inlet pipes 301 respectively, and then the cooling medium flows into the liquid collecting tube 32 near the output shaft side, and then diffuses into the plurality of dielectric strips 33 through the liquid collecting tube 32. The cooling medium entering the plurality of dielectric strips 33 can directly exchange heat with the heat dissipation fins 2, thereby significantly accelerating the heat dissipation effect. At the same time, the cooling medium after heat exchange can enter another liquid collecting tube 32, and then be discharged along the drain pipe 302, so that the cooling medium completes a cycle in the intelligent cooling unit. , realizing its auxiliary heat dissipation for the cooling fan and heat dissipation deception in the prior art, the other liquid collecting pipe 32 is not connected to the angle tube 31, and multiple heat dissipation fins 2 are respectively located between two adjacent dielectric strips 33. During cooling, the cooling medium filled into the dielectric strip 33 can fully contact the surface of the heat dissipation fins 2, thereby significantly accelerating the cooling of the heat dissipation fins 2 that absorb more heat, so that a larger temperature difference is generated between it and the inside of the motor body 1, so that it can continuously maintain a good heat absorption effect, thereby realizing accelerated heat dissipation, the two angle tubes 31 are fixedly connected to the end of the output shaft of the motor body 1 with a liquid inlet pipe 301, and the middle of the liquid collecting pipe 32 on the side of the output shaft of the motor body 1 is fixedly connected to the drain pipe 302. The liquid inlet pipe 301 and the drain pipe 302 are both fixedly passed through the end cover plate of the motor body 1 and extend to the outside of the motor body 1. A temperature sensor is installed on the drain pipe 302, and the temperature sensor is connected to the controller signal.

[0034] When the temperature sensor detects that the discharge temperature of the cooling medium of the motor body 1 is too high, the controller can control the intelligent cooling unit to circulate the cooling medium, or speed up the circulation speed of the cooling medium, or reduce the input temperature of the cooling medium, thereby speeding up the heat dissipation speed of the motor body 1. When the temperature sensor detects that the temperature drops to a safe operating temperature range, the input of the cooling medium can be stopped, or the input speed of the cooling medium can be reduced, or the input temperature can be increased, thereby reducing the cost of the cooling medium used to cool the motor. Through the setting of the intelligent cooling unit, when the surface temperature of the motor is too high, its surface can be actively cooled without affecting its forced convection cooling. The two work together to greatly accelerate the heat dissipation effect.

[0035] like Figure 6-7, the current conversion unit in the dielectric strip 33, the current conversion unit includes a current conversion plate 4 and a current partition 5 fixedly connected to the inner wall of the dielectric strip 33 away from the motor body 1, the current conversion plate 4 includes two current conversion plates 41, the end of the current partition 5 extends between the two current conversion plates 41, the current partition 5 includes a positioning section 52 fixedly connected to the dielectric strip 33 and a self-changing section 51 fixedly connected to the end of the positioning section 52, the self-changing section 51 is an elastic structure, the positioning section 52 is a hard structure, the side of the self-changing section 51 is fully sealed, and at least two electric push rods 501 are fixedly connected between the two current conversion plates 41, and the electric push rods 501 are connected to the controller signal, such as Figure 7 When the temperature sensor detects that the outlet water temperature at the drain pipe 302 is high, it means that there is a lot of heat on the motor body 1. Therefore, at this time, the controller can control the electric push rod 501 to shorten, so that the distance between the two converter slices 41 is reduced. Figure 9 At this time, the self-variable section 51 contracts relatively, thereby increasing the flow channel cross-section on the upper and lower sides of the flow deflector plate 4 and the flow partition 5 in the dielectric strip 33. Therefore, more cooling medium can pass through it per unit time, thereby improving the heat dissipation effect. Figure 8 When the temperature sensor detects that the outlet water temperature is low, it means that the temperature of the motor body 1 is relatively low. At this time, the electric push rod 501 can be controlled to extend, so that the cross-sections of the two flow channels in the medium strip 33 are reduced, and the amount of cooling medium passing through per unit time is reduced, which can reduce the amount of cooling medium used at this time, improve its utilization rate, and achieve energy-saving effects.

[0036] like Figure 5 The width of the dielectric strip 33 is smaller than the width of the heat dissipation fin 2, and the width of the dielectric strip 33 is not less than half the width of the heat dissipation fin 2. The length of the flow partition 5 along the axial direction of the motor body 1 is not greater than 2 / 3 of the length of the heat dissipation fin 2, so that part of the heat dissipation fin 2 is still directly exposed. Under the action of the heat dissipation fan, forced convection heat dissipation can be carried out with the ambient air control. The two heat dissipation methods cooperate with each other to achieve efficient and low-energy heat dissipation, maintaining the safe and stable operation of the motor body 1.

[0037] It is worth noting that the heat dissipation fan is a prior art and is not used as a protection point in this solution, so it is not described in detail in the specification.

[0038] Second implementation method:

[0039] This embodiment further improves the conversion unit based on the first embodiment, and the rest of the embodiment remains consistent with the first embodiment.

[0040] Figure 10As shown, the two axial ends of the flow isolation plate 5 are not sealed, and an increasing surface assembly is fixedly connected between the two flow conversion plates 41, and at least two electric push rods 501 are also fixedly connected between the two. The increasing surface assembly includes a plurality of vertically arranged vertical plates 43, and two adjacent vertical plates 43 are respectively fixedly connected to the two flow conversion plates 41, and the plurality of vertical plates 43 do not contact each other. The flow conversion plates 41 and the vertical plates 43 are all made of high thermal conductivity materials.

[0041] In this embodiment, the surface increasing component is arranged vertically. When the outlet water temperature at the drain pipe 302 is low, the two flow-changing plates 41 are controlled to move away from each other so that the cross-section of the flow channels on both sides thereof is reduced. The multiple vertical plates 43 are separated from the corresponding flow-changing plates 41 respectively, so that the multiple vertical plates 43 are staggered with each other to form a zigzag flow channel, that is, a third flow channel is formed inside the positioning section 52. At this time, part of the fluid entering the medium strip 33 can continue to flow through the third flow channel, thereby significantly extending the time of the cooling medium in the medium strip 33, improving the heat exchange time, and thereby improving the utilization rate of the cooling medium. In addition, in the third flow channel, the farther the distance between the two flow-changing plates 41, the longer the flow channel path.

[0042] In addition, it is worth noting that when the temperature at the drain pipe 302 is high, when the two flow-converting plates 41 are controlled to shrink, the shortest distance between the two can be controlled to be greater than the height of the vertical plate 43, so that the third flow channel will not be closed, thereby increasing the heat exchange area and accelerating heat dissipation.

[0043] In summary, through the setting of the intelligent cooling unit, a circulating heat dissipation path can be formed on the surface and edge corners of the motor body 1, wherein multiple dielectric strips 33 and the heat dissipation fins 2 are interspersed with each other, so that the heat adsorbed in the heat dissipation fins 2 can be actively taken away by them first, and secondly, the outer ends of the heat dissipation fins 2 can also perform forced convection heat dissipation. The dual cooperation of the two greatly accelerates the heat dissipation rate compared with the existing technology; in addition, under the setting of the current conversion unit in the dielectric strip 33, the flow rate of the circulation channel of the cooling medium therein can be adaptively changed according to the actual temperature, and the channel and circulation path of the cooling medium therein can also be adaptively changed to adapt to the stable operation of the motor under different conditions, and at the same time, the cooling medium can be fully utilized to achieve energy-saving effects.

[0044] The third implementation method:

[0045] This embodiment is based on the second embodiment, and changes the arrangement of the surface-increasing component. The rest of the embodiment remains consistent with the second embodiment.

[0046] Figure 12As shown, the surface increasing component includes a transverse concave strip 421 fixedly connected to the upper converter piece 41 and a transverse convex strip 422 fixedly connected to the lower converter piece 41, and the transverse concave strip 421 and the transverse convex strip 422 are both arranged along the axial direction of the motor body 1, and the transverse concave strip 421 and the transverse convex strip 422 match each other. In this embodiment, the surface increasing component is arranged horizontally, such as Figure 13 When the transverse concave strips 421 and the transverse convex strips 422 are separated from each other under the action of the electric push rod 501, a flow channel is also formed between the two. In this embodiment, the entire path of the newly formed flow channel is shorter than that of the second embodiment, but it can also increase the heat exchange area. In specific implementation, it can be selectively set according to actual needs.

[0047] It is worth noting that, since the path thereof will not be extended, when in use, when the temperature of the liquid discharge pipe 302 is low, the electric push rod 501 can be used to control the transverse concave strips 421 and the transverse convex strips 422 to be in full contact, thereby closing the third flow channel.

[0048] In view of current actual needs, the protection scope of the above-mentioned implementation mode adopted in this application is not limited to this. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the protection scope of the present invention.

Claims

1. A motor with an intelligent cooling unit, characterized in that: The invention comprises a motor body (1) with a controller, wherein the front and rear outer ends of the motor body (1) are fixedly connected to a plurality of evenly distributed heat dissipation fins (2), and the front and rear ends of the motor body (1) are fixedly connected to an intelligent cooling unit, wherein the intelligent cooling unit comprises two angled tubes (31) respectively fixedly attached to the outer ends of the axial edges of the motor body (1), two liquid collecting tubes (32) respectively fixedly connected between the two angled tubes (31), and a plurality of evenly distributed dielectric strips (33) respectively fixedly connected between the two liquid collecting tubes (32). The heat dissipation fins (2) are respectively located between two adjacent dielectric strips (33); one end of the two corner tubes (31) away from the output shaft of the motor body (1) is fixedly connected to a liquid inlet pipe (301); the middle part of the liquid collecting pipe (32) away from the output shaft of the motor body (1) is fixedly connected to a liquid discharge pipe (302); the liquid inlet pipe (301) and the liquid discharge pipe (302) are both fixedly passed through the end cover plate of the motor body (1) and extend to the outside of the motor body (1); a temperature sensor is installed on the liquid discharge pipe (302), and the temperature sensor is connected to the controller signal; The dielectric strip (33) includes a current conversion unit, the current conversion unit comprising a current conversion plate (4) and a current partition (5) fixedly connected to the inner wall of the dielectric strip (33) away from the motor body (1), the current conversion plate (4) comprising two current conversion plates (41), and an end of the current partition (5) extending between the two current conversion plates (41).

2. The electric motor with an intelligent cooling unit according to claim 1, characterized in that: Both ends of the liquid collecting tube (32) close to the output end of the motor body (1) are respectively communicated with the two corner tubes (31), and the other liquid collecting tube (32) is not communicated with the corner tube (31).

3. The electric motor with an intelligent cooling unit according to claim 1, characterized in that: The width of the dielectric strip (33) is smaller than the width of the heat dissipation fin (2), and the width of the dielectric strip (33) is not less than half the width of the heat dissipation fin (2), and the length of the flow partition (5) along the axial direction of the motor body (1) is not greater than 2 / 3 of the length of the heat dissipation fin (2).

4. The electric motor with an intelligent cooling unit according to claim 1, characterized in that: The flow partition (5) comprises a positioning section (52) fixedly connected to the dielectric strip (33) and a self-changing section (51) fixedly connected to the end of the positioning section (52); the self-changing section (51) is an elastic structure, and the positioning section (52) is a hard structure.

5. The electric motor with an intelligent cooling unit according to claim 4, characterized in that: The side of the self-converting section (51) is fully sealed, and at least two electric push rods (501) are fixedly connected between the two current-converting segments (41), and the electric push rods (501) are connected to the controller signal.

6. The electric motor with an intelligent cooling unit according to claim 4, characterized in that: The two axial ends of the flow isolation piece (5) are not sealed, and a surface increasing component is fixedly connected between the two flow conversion pieces (41).

7. The electric motor with an intelligent cooling unit according to claim 6, characterized in that: The surface increasing assembly comprises a plurality of vertically arranged vertical sheets (43), wherein two adjacent vertical sheets (43) are fixedly connected to two current-converting sheets (41) respectively, and the plurality of vertical sheets (43) do not contact each other, and the current-converting sheets (41) and the vertical sheets (43) are all made of high thermal conductivity materials.

8. The electric motor with an intelligent cooling unit according to claim 6, characterized in that: The surface-increasing component comprises a transverse concave strip (421) fixedly connected to the upper current-converting sheet (41) and a transverse convex strip (422) fixedly connected to the lower current-converting sheet (41), wherein the transverse concave strip (421) and the transverse convex strip (422) are both arranged axially along the motor body (1), and the transverse concave strip (421) and the transverse convex strip (422) match each other.

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