Protective device for mechatronics motor

Abstract

The invention discloses a protection device for a mechatronics motor, and relates to the technical field of motor protection, and the protection device comprises a protection housing for assembling the motor. The spiral cooling pipe is wound on the periphery of the motor; the cooling box is arranged in the protective shell and used for conveying cooling liquid to the spiral cooling pipe; the circulating conveying mechanism is arranged in the protective shell and used for conveying the cooling liquid in the cooling box into the spiral cooling pipe, and the cooling liquid is discharged back to the cooling box through the spiral cooling pipe; through the design, liquid cooling circulation with zero extra energy consumption for the motor is realized, and the liquid cooling device has the characteristics of low energy consumption, timely response and high heat dissipation efficiency, can still keep stable heat dissipation performance especially under an extreme temperature working condition, improves the temperature tolerance threshold of the motor, prolongs the service life of the motor, and is in air cooling-liquid cooling linkage.

Description

Technical Field

[0001] The present invention relates to the technical field of motor protection, and more specifically, to a protection device for mechatronic motors. Background Art

[0002] In the field of mechatronic motors, the heat dissipation efficiency directly affects the stability and lifespan of equipment operation. Traditional motor protection devices mostly adopt natural air cooling or forced air cooling methods, and conduct heat exchange with the external environment through heat dissipation fins.

[0003] However, when the motor is in a high ambient temperature for a long time or the internal temperature reaches a thermal equilibrium with the environment, the air cooling system is difficult to break through the thermal resistance barrier, easily causing the temperature rise of the motor winding to get out of control, leading to irreversible damages such as accelerated insulation aging and magnet demagnetization.

[0004] Based on this, the present invention provides a protection device for mechatronic motors. Summary of the Invention

[0005] In order to solve the problems raised in the above background art, the present invention provides a protection device for mechatronic motors, which realizes a liquid cooling cycle with zero additional energy consumption for the motor, and has the characteristics of low energy consumption, timely response, and high heat dissipation efficiency. Especially under extreme temperature conditions, it can still maintain stable heat dissipation performance, improve the temperature tolerance threshold and service life of the motor, and is a linkage of air cooling - liquid cooling.

[0006] The protection device for mechatronic motors provided by the present invention adopts the following technical solutions:

[0007] A protection device for mechatronic motors includes a protection housing for assembling the motor; a spiral cooling pipe wound around the periphery of the motor; a cooling tank arranged inside the protection housing for supplying coolant to the spiral cooling pipe; a circulating conveying mechanism arranged inside the protection housing for conveying the coolant in the cooling tank into the spiral cooling pipe and discharging it back to the cooling tank from the spiral cooling pipe. Among them, the circulating conveying mechanism includes at least one sleeve arranged on the top of the cooling tank. One side of the sleeve is communicated with a first conveying pipe, the bottom end of the first conveying pipe is arranged inside the cooling tank, the other side of the sleeve is communicated with a second conveying pipe, the side end of the second conveying pipe is communicated with one end of the spiral cooling pipe, and the other end of the spiral cooling pipe is arranged inside the cooling tank; two one - way valves, one is arranged inside the first conveying pipe and the other is arranged inside the second conveying pipe, and the directions of the two one - way valves are the same; a push pad slidably arranged inside the sleeve; a driving component arranged between the motor and the cooling tank for driving the push pad to reciprocate up and down inside the sleeve, so that the coolant in the cooling tank enters the first conveying pipe and is discharged from the second conveying pipe.

[0008] Preferably, the driving assembly includes a driving gear, which is arranged on a rotating shaft at the rear end of the motor; a driven gear, which is arranged in a protective housing through a telescopic member, and the driven gear is meshed with the driving gear; a turntable, which is rotatably arranged in the protective housing through a bracket, and the driven gear can drive the turntable to rotate; a moving rod, which is slidably arranged on the top of the sleeve, and the bottom end of the moving rod is connected to the push pad, and a travel sleeve is arranged on the top of the moving rod; a toggle column is arranged on the side of the turntable, and the toggle column is slidably connected to the travel sleeve.

[0009] Preferably, the telescopic member includes a sliding sleeve arranged in the protective shell through a bracket, a telescopic spring is arranged inside the sliding sleeve, a push rod is slidably arranged on the side of the sliding sleeve, one end of the push rod is connected to the telescopic spring, and the driven gear is arranged at the other end of the push rod. When the temperature in the protective shell is abnormal, the telescopic spring can be extended to make the driven gear contact and mesh with the driving gear.

[0010] Preferably, the retractable spring is made of shape memory alloy.

[0011] Preferably, the side end of the push rod is slidably connected to the turntable.

[0012] Preferably, the sleeve and the drive assembly are arranged as a pair, one sleeve absorbs the coolant in the cooling box and transports it to the spiral cooling pipe, and the other sleeve absorbs the coolant in the spiral cooling pipe and transports it to the cooling box.

[0013] Preferably, the motor is arranged in the protective casing through a support frame.

[0014] Preferably, a heat dissipation mesh plate is provided on the outer side of the protective shell.

[0015] In summary, the present invention includes the following beneficial technical effects:

[0016] 1. When the temperature inside the protective shell exceeds the critical value of natural air cooling or is in a thermal equilibrium state, the operation of the motor causes the drive assembly to drive the push pad to move up and down in the sleeve, thereby transporting the coolant in the cooling box to the spiral cooling pipe, and the coolant takes away the heat of the motor, and then the coolant flows back into the cooling box, thereby realizing a liquid cooling cycle. Through this design, a liquid cooling cycle with zero additional energy consumption for the motor is realized, which has the characteristics of low energy consumption, timely response, and high heat dissipation efficiency. In particular, it can still maintain stable heat dissipation performance under extreme temperature conditions, thereby improving the temperature tolerance threshold and service life of the motor, and it is an air-cooled-liquid-cooled linkage.

[0017] 2. When natural air cooling can complete the heat dissipation of the motor, the length of the telescopic spring will not change, and at this time, the driven gear and the driving gear are not in contact, and the driving assembly will not be activated. Through this design, passive transmission meshing control based on temperature response is achieved, and the mechanical trigger design is more suitable for high-temperature and harsh environments compared to electronic ones.

[0018] 3. Considering that a single sleeve for transporting the coolant may have a slow response, two sleeves are set up. One sleeve sucks the coolant in the cooling tank, and the other sleeve sucks the coolant in the spiral cooling pipe. Through this design, the two sleeves respectively undertake the functions of sucking in and discharging the coolant, eliminating the phase delay of fluid transportation compared to the single-sleeve scheme and increasing the circulating flow rate of the coolant.

[0019] 4. In winter or when the temperature is not high (when only air cooling can complete the heat dissipation protection of the motor), the adjusting rod can be pulled to separate the driving gear from the rotating shaft at the tail end of the motor, thereby reducing the load on the motor. Through this design, the no-load loss of the motor can be effectively reduced by physically disconnecting the driving gear under low-temperature working conditions.

[0020] The above summary is only for the purpose of the specification and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will be readily apparent by reference to the drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of a protection device for a mechatronic motor in an embodiment of the present invention;

[0022] Figure 2 is a schematic internal structural diagram of a protection device for a mechatronic motor in an embodiment of the present invention;

[0023] Figure 3 is a schematic structural diagram of the motor and the spiral cooling pipe in an embodiment of the present invention;

[0024] Figure 4 is a schematic structural diagram of the circulating transportation mechanism in an embodiment of the present invention;

[0025] Figure 5 is a schematic internal structural diagram of the cooling tank and the sleeve in an embodiment of the present invention;

[0026] Figure 6 is a schematic structural diagram of the driving gear, the driven gear, and the telescopic member in an embodiment of the present invention;

[0027] Figure 7 is a schematic structural diagram of the telescopic member in an embodiment of the present invention;

[0028] Figure 8 It is a schematic structural diagram of the adjusting rod and the driving gear in the embodiment of the present invention.

[0029] Explanation of reference numerals: 1, motor; 2, protective housing; 3, spiral cooling pipe; 4, cooling box; 5, circulating conveying mechanism; 500, sleeve; 501, conveying pipe 1; 502, conveying pipe 2; 503, push pad; 504, driving gear; 505, driven gear; 506, turntable; 507, moving rod; 508, stroke sleeve; 509, sliding sleeve; 510, telescopic spring; 511, push rod; 6, adjusting rod. Detailed implementation manners

[0030] The following will further describe the present invention in detail Figures 1 to 8 in conjunction with the appended

[0031] It should be noted that the drawings are schematic and not drawn to scale. For the sake of clarity and convenience in the drawings, the relative sizes and proportions of the parts shown in the drawings are exaggerated or reduced in size for illustration, and any size is only exemplary and not limiting. In addition, the same reference numerals are used for the same structures, elements or fittings appearing in more than two drawings to reflect similar features.

[0032] Embodiment 1

[0033] The embodiment of the present invention discloses a protection device for a mechatronic motor. Referring to Figures 1 to 5 , a protection device for a mechatronic motor includes a protective housing 2 for assembling the motor 1, a spiral cooling pipe 3, a cooling box 4 and a circulating conveying mechanism 5.

[0034] The motor 1 is arranged in the protective housing 2 through a support frame; a heat dissipation mesh plate is arranged on the outer side of the protective housing 2, heat dissipation fins are arranged on the outer side surface of the motor 1, and the spiral cooling pipe 3 is wound around the heat dissipation fins. An air-cooling heat dissipation device can be arranged on the top of the protective housing 2. For other specific structures and connection relationships of the air-cooling heat dissipation of the motor 1, reference can be made to the prior art, which is not the focus of the present invention and will not be elaborated herein.

[0035] Specifically, the spiral cooling pipe 3 is wound around the periphery of the motor 1; the cooling box 4 is arranged in the protective housing 2, and a semiconductor refrigeration sheet (or other refrigeration devices) is arranged on the inner bottom wall of the cooling box 4 for conveying coolant to the spiral cooling pipe 3; the circulating conveying mechanism 5 is arranged in the protective housing 2 for conveying the coolant in the cooling box 4 into the spiral cooling pipe 3 and discharging it back to the cooling box 4 from the spiral cooling pipe 3;

[0036] Among them, the circulating conveying mechanism 5 includes at least one sleeve 500, two one-way valves, a push pad 503 and a driving assembly; the sleeve 500 is arranged at the top of the cooling box 4, one side of the sleeve 500 is connected to the conveying pipe 1 501, the bottom end of the conveying pipe 1 501 is arranged in the cooling box 4, and the other side of the sleeve 500 is connected to the conveying pipe 2 502, the side end of the conveying pipe 2 502 is connected to one end of the spiral cooling pipe 3, and the other end of the spiral cooling pipe 3 is arranged in the cooling box 4; two one-way valves, one is arranged in the conveying pipe 1 501, and the other is arranged in the conveying pipe 2 502, and the directions of the two one-way valves are consistent; the push pad 503 is slidably arranged in the sleeve 500; the driving assembly is arranged between the motor 1 and the cooling box 4, and is used to drive the push pad 503 to move up and down in the sleeve 500, so that the coolant in the cooling box 4 enters the conveying pipe 1 501 and is discharged from the conveying pipe 2 502.

[0037] When the temperature inside the protective shell 2 exceeds the critical value of natural air cooling or is in a thermal equilibrium state, the operation of the motor 1 causes the driving assembly to drive the push pad 503 to move up and down in the sleeve 500, thereby transporting the coolant in the cooling box 4 to the spiral cooling tube 3, and the coolant takes away the heat of the motor 1, and then the coolant flows back to the cooling box 4, thereby realizing a liquid cooling cycle (the medium after heat exchange flows back to the cooling box 4 to complete heat dissipation regeneration, forming an autonomous liquid cooling cycle without an external power source). Through this design, a liquid cooling cycle with zero additional energy consumption for the motor 1 is realized, which has the characteristics of low energy consumption, timely response, and high heat dissipation efficiency, especially under extreme temperature conditions, it can still maintain stable heat dissipation performance, thereby improving the temperature tolerance threshold and service life of the motor 1, and it is an air-cooled-liquid-cooled linkage.

[0038] like Figure 2 and Figure 4 As shown, the driving assembly includes a driving gear 504, a driven gear 505, a turntable 506 and a moving rod 507; the driving gear 504 is arranged on the rotating shaft at the rear end of the motor 1; the driven gear 505 is arranged in the protective shell 2 through a telescopic member, and the driven gear 505 is meshed with the driving gear 504; the turntable 506 is rotatably arranged in the protective shell 2 through a bracket, and the driven gear 505 can drive the turntable 506 to rotate; the moving rod 507 is slidably arranged on the top of the sleeve 500, and the bottom end of the moving rod 507 is connected to the push pad 503, and the top end of the moving rod 507 is provided with a travel sleeve 508; a toggle column is provided on the side of the turntable 506, and the toggle column is slidably connected to the travel sleeve 508.

[0039] For the use of drive components, such as Figure 4 and Figure 5The driving gear 504 rotates to rotate the driven gear 505, thereby the driven gear 505 drives the turntable 506 to rotate. When the turntable 506 rotates, the travel sleeve 508 is driven to move up and down through the toggle column, thereby the moving rod 507 drives the push pad 503 to move up and down in the sleeve 500, completing the circulation and transportation of the coolant.

[0040] like Figure 6 and Figure 7 As shown, the telescopic member includes a sliding sleeve 509 arranged in the protective shell 2 through a bracket, a telescopic spring 510 is arranged inside the sliding sleeve 509, a push rod 511 is slidably arranged on the side of the sliding sleeve 509, one end of the push rod 511 is connected to the telescopic spring 510, and the driven gear 505 is arranged at the other end of the push rod 511. When the temperature in the protective shell 2 is abnormal, the telescopic spring 510 can be extended to make the driven gear 505 contact and mesh with the driving gear 504.

[0041] When natural air cooling can complete the heat dissipation of the motor 1, the length of the retractable spring 510 will not be extended or retracted. At this time, the driven gear 505 and the driving gear 504 are not in contact, and the drive assembly will not be turned on. Through this design, passive transmission engagement control based on temperature response is realized, and the mechanical trigger design is more suitable for high temperature and harsh environment than the electronic one.

[0042] Specifically, the retractable spring 510 is made of shape memory alloy.

[0043] Specifically, the side end of the push rod 511 is slidably plugged into the rotating disk 506 .

[0044] Embodiment 2

[0045] This embodiment is further optimized on the basis of the above embodiment 1, and the same parts as the above technical solution will not be repeated here. Figure 5 As shown, in order to better realize the present invention, the following setting is particularly adopted. In this embodiment, the sleeve 500 and the drive assembly are arranged as a pair, one sleeve 500 absorbs the coolant in the cooling box 4 and transports it to the spiral cooling tube 3, and the other sleeve 500 absorbs the coolant in the spiral cooling tube 3 and transports it to the cooling box 4.

[0046] Specifically, considering that a single sleeve 500 may have a slow response when transporting coolant, a double sleeve 500 is provided, wherein one sleeve 500 absorbs coolant from the cooling box 4, and the other sleeve 500 absorbs coolant from the spiral cooling tube 3. Through this design, the two sleeves 500 respectively assume the functions of sucking and discharging coolant, and compared with the single sleeve 500 solution, the phase delay of fluid transport is eliminated, thereby increasing the circulation flow rate of the coolant.

[0047] Embodiment 3

[0048] This embodiment is a further optimization based on the above-mentioned Embodiment 1. The same parts as the foregoing technical solutions will not be described herein again. For example Figure 8 As shown, in order to better implement the present invention, the following setting method is particularly adopted. In this embodiment, an adjusting rod 6 is slidably inserted into the side surface of the protective housing 2. The driving gear 504 is rotatably arranged on the side surface of the adjusting rod 6, and the shaft head of the driving gear 504 connected to the adjusting rod 6 can be inserted into the rotating shaft at the tail end of the motor 1.

[0049] Specifically, in winter or when the temperature is not high (the heat dissipation protection of the motor 1 can be completed only by using air cooling), the adjusting rod 6 can be pulled to separate the driving gear 504 from the rotating shaft at the tail end of the motor 1, thereby reducing the load of the motor 1. Through this design, the no-load loss of the motor 1 can be effectively reduced by physically disconnecting the driving gear 504 under low-temperature working conditions.

[0050] The standard parts used in the present invention can all be purchased from the market. The special-shaped parts can be customized according to the description of the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machines, parts, and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated herein.

[0051] In the description of the present invention, the terms "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, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. The meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0052] In the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; 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 internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0053] In the present invention, unless otherwise clearly specified or limited, a first feature being "on" or "under" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "over" and "on top of" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. A first feature being "under", "below" and "beneath" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the horizontal height of the first feature is less than that of the second feature.

[0054] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not have to be directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0055] In the attached drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are involved, and other structures can refer to the general design. Without conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

[0056] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A mechatronic motor protection device, characterized in that: include: A protective housing (2) for assembling the motor (1); A spiral cooling pipe (3) is wound around the periphery of the motor (1); A cooling box (4) is arranged in the protective shell (2) and is used to transport cooling liquid to the spiral cooling pipe (3); A circulation conveying mechanism (5) is arranged in the protective shell (2) and is used to convey the cooling liquid in the cooling box (4) to the spiral cooling pipe (3), and discharge the cooling liquid back to the cooling box (4) through the spiral cooling pipe (3); Wherein, the circulating conveying mechanism (5) comprises: At least one sleeve (500) is arranged on the top of the cooling box (4), one side of the sleeve (500) is connected to a delivery pipe (501), the bottom end of the delivery pipe (501) is arranged in the cooling box (4), the other side of the sleeve (500) is connected to a delivery pipe (502), the side end of the delivery pipe (502) is connected to one end of the spiral cooling pipe (3), and the other end of the spiral cooling pipe (3) is arranged in the cooling box (4); Two one-way valves, one is arranged in the first delivery pipe (501), and the other is arranged in the second delivery pipe (502), and the directions of the two one-way valves are consistent; A push pad (503) is slidably disposed in the sleeve (500); The driving assembly is arranged between the motor (1) and the cooling box (4) and is used to drive the push pad (503) to move up and down in the sleeve (500), so that the coolant in the cooling box (4) enters the delivery pipe 1 (501) and is discharged from the delivery pipe 2 (502).

2. The mechatronic motor protection device according to claim 1, characterized in that: The drive assembly comprises: A driving gear (504) is arranged on the rotating shaft at the rear end of the motor (1); A driven gear (505) is arranged in the protective housing (2) through a telescopic member, and the driven gear (505) is meshed with the driving gear (504); The rotating disk (506) is rotatably arranged in the protective housing (2) through a bracket, and the driven gear (505) can drive the rotating disk (506) to rotate; A movable rod (507) is slidably disposed on the top of the sleeve (500), and the bottom end of the movable rod (507) is connected to the push pad (503), and the top end of the movable rod (507) is provided with a travel sleeve (508); A toggle post is disposed on the side of the rotating disk (506), and the toggle post is slidably connected to the travel sleeve (508).

3. The mechatronic motor protection device according to claim 2, characterized in that: The telescopic member comprises a sliding sleeve (509) arranged in a protective housing (2) via a bracket, a telescopic spring (510) being arranged inside the sliding sleeve (509), a push rod (511) being slidably arranged on the side of the sliding sleeve (509), one end of the push rod (511) being connected to the telescopic spring (510), and the driven gear (505) being arranged at the other end of the push rod (511), and the telescopic spring (510) being able to stretch when the temperature in the protective housing (2) is abnormal, so that the driven gear (505) is in contact and meshing with the driving gear (504).

4. The mechatronic motor protection device according to claim 3, characterized in that: The retractable spring (510) is made of shape memory alloy.

5. The mechatronic motor protection device according to claim 3, characterized in that: The side end of the push rod (511) is slidably plugged into the rotating disk (506).

6. The mechatronic motor protection device according to claim 1, characterized in that: The sleeve (500) and the drive assembly are arranged in a pair, one sleeve (500) absorbs the coolant in the cooling box (4) and delivers it to the spiral cooling pipe (3), and the other sleeve (500) absorbs the coolant in the spiral cooling pipe (3) and delivers it to the cooling box (4).

7. The mechatronic motor protection device according to claim 1, characterized in that: The motor (1) is arranged in the protective housing (2) via a support frame.

8. A mechatronic motor protection device according to any one of claims 1 to 7, characterized in that: A heat dissipation mesh plate is arranged on the outer side of the protective shell (2).

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