CN111211644B - Automatic self-protection motor - Google Patents
Automatic self-protection motor Download PDFInfo
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- CN111211644B CN111211644B CN202010197352.6A CN202010197352A CN111211644B CN 111211644 B CN111211644 B CN 111211644B CN 202010197352 A CN202010197352 A CN 202010197352A CN 111211644 B CN111211644 B CN 111211644B
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- fixedly connected
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- motor
- liquid pipe
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
Abstract
The invention discloses an automatic self-protection motor, which comprises a motor shell, wherein a first cavity is arranged in the motor shell, a second cavity is arranged on the upper side of the first cavity, a heat exchange device for reducing the internal temperature of the motor is arranged in the second cavity, a second supporting seat is fixedly connected to the bottom surface of the first cavity, and a power output device for converting electric energy into mechanical energy in a torque form is arranged on the upper side of the second supporting seat.
Description
Technical Field
The invention relates to the technical field of motor protection, in particular to an automatic self-protection motor.
Background
Traditional motor protection device often takes circuit overcurrent protection as the main, installs the sensor in the motor internal circuit, and whether the detection circuit transships and ensures motor security, but the motor permanent operation leads to the inside amasss heat of motor seriously, and the unable high-efficient quick dissipation of the inside heat of motor to damage the motor, influence the normal operation of motor.
Disclosure of Invention
The object of the present invention is to provide an automatic self-protection motor for overcoming the above-mentioned drawbacks of the prior art.
The automatic self-protection motor comprises a motor shell, wherein a first cavity is arranged in the motor shell, a first supporting seat is fixedly connected to the bottom surface of the first cavity, a fixing groove is formed in the upper side of the first supporting seat, a first bearing is fixedly installed in the fixing groove, an output shaft used for outputting input electric energy outwards in a torque mode is rotatably connected to the position of a shaft hole of the first bearing, a first through hole is formed in the left side wall of the motor shell, the output shaft penetrates through the first through hole and extends outwards, a power output device used for converting the electric energy into mechanical energy in the torque mode is fixedly installed on the output shaft, a power interface is fixedly installed in the right side wall of the motor shell, a supporting plate is fixedly connected between the power interface and the first supporting seat, and first cables used for current transmission are fixedly installed at the front side and the rear side of the left end face of the supporting plate, first cable left side fixed mounting has the second cable, second cable left side with power take off is fixed continuous, the rear side first cable right-hand member is equipped with automatic circuit breaker, automatic circuit breaker right-hand member fixedly connected with third cable, the third cable right-hand member with power source links to each other, the front side first cable right-hand member is equipped with the power-off protection device who is used for handling the condition that the outage motor burns out, power-off protection device right-hand member fixedly connected with fourth cable, fourth cable right-hand member with power source links to each other, first cavity upside is equipped with the second cavity, be equipped with the heat exchange device who is used for reducing the inside temperature of motor in the second cavity.
On the basis of the technical scheme, the power output device comprises a second supporting seat fixedly arranged on the bottom surface of the first cavity and used for supporting the power output device, the upper side of the second supporting seat is fixedly connected with a stator used for generating a rotating magnetic field, a second through hole is formed in the inner side of the stator, a rotor used for inducing potential to convert electric energy into mechanical energy is rotatably connected in the second through hole, when the motor is electrified, the rotor rotates under the action of the rotating magnetic field and drives an output shaft fixedly arranged in the rotor to rotate, brushes used for inputting external current to the rotor are symmetrically and fixedly connected to the front side and the rear side of the right end of the rotor, and the interior of the rotor is fixedly connected with the output shaft.
On the basis of the technical scheme, the automatic circuit breaker comprises a circuit breaking boss fixedly arranged on the rear side of the support plate, a third cavity is arranged on the right side of the circuit breaking boss, a battery for providing electric energy for the automatic circuit breaker is fixedly arranged in the third cavity, a fifth cable is fixedly connected with the rear end of the battery, an electrode plate for forming a conductive loop is fixedly connected with the left end of the fifth cable, a first liquid pipe is arranged on the front side of the electrode plate, the front side part of the electrode plate is fixedly arranged in the first liquid pipe, mercury liquid is stored in the first liquid pipe, a first spring for resisting the rightward thrust of the mercury liquid is fixedly connected on the right side wall of the first liquid pipe, a push plate is fixedly connected on the left side of the first spring, and the push plate is moved leftwards and rightwards in the first liquid pipe under the action of the mercury liquid and the first spring, first spring front side is equipped with the second liquid pipe, second liquid pipe front end fixed mounting has the electro-magnet, electro-magnet right-hand member fixedly connected with is used for constituting the sixth cable of conductive loop, sixth cable right-hand member meets with the battery lower extreme, electro-magnet lower extreme fixedly connected with second spring, second spring lower extreme fixed mounting has the circuit splicing, first liquid pipe left side fixed connection has deposited the third liquid pipe of mercury liquid, third liquid pipe lower extreme fixed connection has deposited the fourth liquid pipe of mercury liquid.
On the basis of the technical scheme, the power-off protection device comprises a seventh cable fixedly arranged at the right end of the first cable, an inductance coil used for preventing circuit current from changing suddenly is fixedly arranged at the rear side of the seventh cable, a resistor used for preventing the inductance coil from being short-circuited is fixedly arranged at the front side of the seventh cable, and the right end of the seventh cable is connected with the left end of the fourth cable.
On the basis of the technical scheme, the heat exchange device comprises a heat exchange pipe which is fixedly arranged in the second cavity and changes the temperature inside the motor shell through heat exchange, condensate used for exchanging heat is stored in the heat exchange pipe, and the right side of the heat exchange pipe is fixedly provided with a refrigerator which refrigerates the condensate into low-temperature condensate and pressurizes and re-pumps the low-temperature condensate into the heat exchange pipe.
The invention has the beneficial effects that: the invention adopts the motor protection technology, the heat exchange pipe and the refrigerator are fixedly arranged in the second cavity, the high-power rapid cooling can be ensured, and the motor can operate under a high load for a long time.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic diagram of an internal structure of an automatic self-protection motor according to the present invention;
FIG. 2 is a schematic view of the present invention taken along the line A-A of FIG. 1;
FIG. 3 is a schematic view of the present invention taken along the line B-B of FIG. 1;
FIG. 4 is an enlarged view of a portion of FIG. 3 of the present invention;
FIG. 5 is a schematic view of the structure of FIG. 4 in the direction C-C according to the present invention.
Detailed Description
The invention will now be described in detail with reference to fig. 1-5, for convenience of description, the following orientations will now be defined: the up-down, front-back, left-right directions described below correspond to the up-down, front-back, left-right directions in the projection relation of fig. 1 itself.
Referring to fig. 1 to 5, the present invention according to an embodiment of the present invention discloses an automatic self-protection motor, including a motor casing 10, a first cavity 70 is provided in the motor casing 10, a first supporting base 11 is fixedly connected to a bottom surface of the first cavity 70, a fixing groove 23 is provided on an upper side of the first supporting base 11, a first bearing 14 is fixedly installed in the fixing groove 23, an output shaft 15 for outputting input electric energy in a torque form is rotatably connected to a shaft hole of the first bearing 14, a first through hole 60 is provided in a left side wall of the motor casing 10, the output shaft 15 penetrates through the first through hole 60 and extends outward, a power output device 101 for converting electric energy into mechanical energy in a torque form is fixedly installed on the output shaft 15, a power source interface 27 is fixedly installed in a right side wall of the motor casing 10, a supporting plate 25 is fixedly connected between the power source interface 27 and the first supporting base 11, first cables 50 for current transmission are fixedly arranged at the front side and the rear side of the left side of the upper end surface of the supporting plate 25, a second cable 51 is fixedly arranged at the left side of the first cable 50, the left side of the second cable 51 is fixedly connected with the power output device 101, an automatic circuit breaker 102 is arranged at the right end of the first cable 50 at the rear side, the right end of the automatic circuit breaker 102 is fixedly connected with a third cable 52, the right end of the third cable 52 is connected with the power interface 27, the right end of the first cable 50 on the front side is provided with a power-off protection device 103 for processing the burning-out situation of the power-off motor, the right end of the power-off protection device 103 is fixedly connected with a fourth cable 53, the right end of the fourth cable 53 is connected with the power interface 27, a second cavity 71 is arranged at the upper side of the first cavity 70, and a heat exchange device 104 for reducing the internal temperature of the motor is arranged in the second cavity 71.
In addition, in one embodiment, the power output device 101 comprises a second support seat 12 fixedly arranged on the bottom surface of the first cavity 70 for supporting the power output device 101, the upper side of the second supporting seat 12 is fixedly connected with a stator 16 for generating a rotating magnetic field, the inner side of the stator 16 is provided with a second through hole 61, the second through hole 61 is rotatably connected with a rotor 17 for inducing electric potential to convert electric energy into mechanical energy, when the motor is electrified, the rotor 17 rotates under the action of the rotating magnetic field and drives the output shaft 15 fixed inside the rotor to rotate, the front side and the rear side of the right end of the rotor 17 are symmetrically and fixedly connected with electric brushes 20 used for inputting external current to the rotor 17, the rotor 17 is internally and fixedly connected with the output shaft 15, when the brush 20 is energized, the rotor 17 is rotated by the rotating magnetic field and rotates the output shaft 15 fixed therein.
In addition, in one embodiment, the automatic circuit breaker 102 includes a circuit breaker boss 38 fixedly disposed at the rear side of the support plate 25, a third cavity 72 is disposed at the right side of the circuit breaker boss 38, a battery 39 for supplying electric power to the automatic circuit breaker 102 is fixedly mounted in the third cavity 72, a fifth cable 54 is fixedly connected to the rear end of the battery 39, an electrode plate 40 for forming a conductive circuit is fixedly connected to the left end of the fifth cable 54, a first liquid tube 43 is disposed at the front side of the electrode plate 40, a front portion of the electrode plate 40 is fixedly mounted in the first liquid tube 43, mercury liquid 47 is stored in the first liquid tube 43, a first spring 42 for resisting the rightward thrust of the mercury liquid 47 is fixedly connected to the right side wall of the first liquid tube 43, a push plate 41 is fixedly connected to the left side of the first spring 42, the push plate 41 moves left and right in the first liquid tube 43 under the action of the mercury liquid 47 and the first spring 42, the front side of the first spring 42 is provided with a second liquid pipe 44, the front end of the second liquid pipe 44 is fixedly provided with an electromagnet 45, the right end of the electromagnet 45 is fixedly connected with a sixth cable 55 for forming a conductive loop, the right end of the sixth cable 55 is connected with the lower end of a battery 39, the lower end of the electromagnet 45 is fixedly connected with a second spring 46, the lower end of the second spring 46 is fixedly provided with a circuit connecting piece 28, the left side of the first liquid pipe 43 is fixedly connected with a third liquid pipe 48 storing the mercury liquid 47, the lower end of the third liquid pipe 48 is fixedly connected with a fourth liquid pipe 49 storing the mercury liquid 47, when the motor continuously works and generates heat, the mercury liquid 47 is heated and expands in the fourth liquid pipe 49, the third liquid pipe 48 and the first liquid pipe 43 and pushes the push plate 41 to move rightwards, the mercury liquid 47 flows into the second liquid pipe 44, and the electromagnet 45 is electrified, the circuit contact piece 28 is moved by the attraction force of the electromagnet 45 toward the inside of the disconnection boss 38, and the circuit is disconnected on the support plate 25.
In addition, in one embodiment, the power-off protection device 103 includes a seventh cable 56 fixedly disposed at a right end of the first cable 50 at the front side, an inductor 29 for preventing sudden change of circuit current is fixedly mounted at a rear side of the seventh cable 56, a resistor 30 for preventing the inductor 29 from being short-circuited is fixedly mounted at a front side of the seventh cable 56, a right end of the seventh cable 56 is connected to a left end of the fourth cable 53, and when the seventh cable 56 is powered off, the inductor 29 generates an opposite potential for preventing sudden decrease of current of the seventh cable 56, so that the motor does not have a power failure immediately and damage inside the motor is avoided.
In addition, in one embodiment, the heat exchanging device 104 includes a heat exchanging pipe 31 fixedly disposed in the second cavity 71 for changing the internal temperature of the motor casing 10 through heat exchange, a condensate 33 for exchanging heat is stored in the heat exchanging pipe 31, and a refrigerator 32 for refrigerating the heat exchanged high-temperature condensate 33 into the low-temperature condensate 33 and pressurizing the low-temperature condensate 33 for re-pumping into the heat exchanging pipe 31 is fixedly mounted on the right side of the heat exchanging pipe 31.
When the motor is used in daily life, alternating current is plugged into the power interface 27, the alternating current is normally led into two sides of the electric brush 20 through the resistor 30, the electric brush 20 leads the alternating current into the rotor 17, a magnetic field generated by current in the rotor 17 and a magnetic field generated by the stator 16 arranged on the outer side of the rotor 17 act to drive the rotor 17 to rotate, and the rotor 17 drives the output shaft 15 fixed on the inner side of the rotor 17 to rotate to complete torque output of the motor.
When the motor operates for a long time under a high load, the mercury liquid 47 in the fourth liquid pipe 49 expands due to heat, the push plate 41 in the first liquid pipe 43 is pushed to move rightwards, when the mercury liquid flows into the second liquid pipe 44, the upper end and the lower end of the battery 39 form a complete circuit path, so that the electromagnet 45 is electrified, the second spring 46 fixedly arranged on the front side of the electromagnet 45 is influenced by magnetic force to compress backwards, the circuit connecting piece 28 fixedly arranged on the front side of the second spring 46 is driven to move backwards, the circuit on the support plate 25 is broken, and the motor is prevented from being damaged due to overheating.
When the outside of the motor is suddenly powered off, opposite electric potentials are generated in the inductance coil 29, so that the currents on the two sides of the rotor 17 are gradually reduced, the motor stops running stably, and the power-off damage is avoided.
The invention has the beneficial effects that: the invention adopts the motor protection technology, the heat exchange pipe and the refrigerator are fixedly arranged in the second cavity, the high-power rapid cooling can be ensured, and the motor can operate under a high load for a long time.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and scope of the present invention are intended to be included therein.
Claims (1)
1. An automatic self-protection motor, includes the motor casing, its characterized in that: the motor casing is characterized in that a first cavity is arranged in the motor casing, a first supporting seat is fixedly connected to the bottom surface of the first cavity, a fixing groove is formed in the upper side of the first supporting seat, a first bearing is fixedly mounted in the fixing groove, an output shaft used for outputting input electric energy outwards in a torque form is rotatably connected to the position of the shaft of the first bearing, a first through hole is formed in the left side wall of the motor casing, the output shaft penetrates through the first through hole and extends outwards, a power output device used for converting the electric energy into mechanical energy in the torque form is fixedly mounted on the output shaft, a power interface is fixedly mounted in the right side wall of the motor casing, a supporting plate is fixedly connected between the power interface and the first supporting seat, first cables used for current transmission are fixedly mounted at the front side and the rear side of the left end face of the supporting plate, and a second cable is, the left side of the second cable is fixedly connected with the power output device, the right end of the first cable on the rear side is provided with an automatic circuit breaker, the right end of the automatic circuit breaker is fixedly connected with a third cable, the right end of the third cable is connected with the power interface, the right end of the first cable on the front side is provided with a power-off protection device used for processing the burning situation of a power-off motor, the right end of the power-off protection device is fixedly connected with a fourth cable, the right end of the fourth cable is connected with the power interface, a second cavity is arranged on the upper side of the first cavity, and a heat exchange device used for reducing the internal temperature of the motor is arranged in the second cavity;
the power output device comprises a second supporting seat which is fixedly arranged on the bottom surface of the first cavity and used for supporting the power output device, the upper side of the second supporting seat is fixedly connected with a stator used for generating a rotating magnetic field, a second through hole is formed in the inner side of the stator, a rotor used for inducing electric potential to convert electric energy into mechanical energy is rotatably connected in the second through hole, the rotor can rotate under the action of the rotating magnetic field and drive an output shaft fixedly arranged in the rotor to rotate when a motor is electrified, electric brushes used for inputting external current to the rotor are symmetrically and fixedly connected to the front side and the rear side of the right end of the rotor, and the interior of the rotor is fixedly connected with the output;
the automatic circuit breaker comprises a circuit breaking boss fixedly arranged on the rear side of the supporting plate, a third cavity is arranged on the right side of the circuit breaking boss, a battery for providing electric energy for the automatic circuit breaker is fixedly arranged in the third cavity, a fifth cable is fixedly connected to the rear end of the battery, an electrode plate for forming a conductive loop is fixedly connected to the left end of the fifth cable, a first liquid pipe is arranged on the front side of the electrode plate, the front side of the electrode plate is fixedly arranged in the first liquid pipe, mercury liquid is stored in the first liquid pipe, a first spring for resisting the rightward thrust of the mercury liquid is fixedly connected to the right side wall of the first liquid pipe, a push plate is fixedly connected to the left side of the first spring, the push plate is acted by the mercury liquid and the first spring in the first liquid pipe to move left and right in the first liquid pipe, and a second liquid pipe is arranged on the front side of the first spring, the front end of the second liquid pipe is fixedly provided with an electromagnet, the right end of the electromagnet is fixedly connected with a sixth cable for forming a conductive loop, the right end of the sixth cable is connected with the lower end of a battery, the lower end of the electromagnet is fixedly connected with a second spring, the lower end of the second spring is fixedly provided with a circuit connecting piece, the left side of the first liquid pipe is fixedly connected with a third liquid pipe storing the mercury liquid, and the lower end of the third liquid pipe is fixedly connected with a fourth liquid pipe storing the mercury liquid;
the power-off protection device comprises a seventh cable fixedly arranged at the right end of the first cable at the front side, an inductance coil for preventing circuit current from changing suddenly is fixedly arranged at the rear side of the seventh cable, a resistor for preventing the inductance coil from being short-circuited is fixedly arranged at the front side of the seventh cable, and the right end of the seventh cable is connected with the left end of the fourth cable;
the heat exchange device comprises a heat exchange pipe which is fixedly arranged in the second cavity and changes the temperature inside the motor shell through heat exchange, condensate for exchanging heat is stored in the heat exchange pipe, and the right side of the heat exchange pipe is fixedly provided with a refrigerator which refrigerates the high-temperature condensate which is subjected to heat exchange into low-temperature condensate and pressurizes the low-temperature condensate for pumping into the heat exchange pipe again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010197352.6A CN111211644B (en) | 2020-03-19 | 2020-03-19 | Automatic self-protection motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010197352.6A CN111211644B (en) | 2020-03-19 | 2020-03-19 | Automatic self-protection motor |
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| Publication Number | Publication Date |
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| CN111211644A CN111211644A (en) | 2020-05-29 |
| CN111211644B true CN111211644B (en) | 2020-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010197352.6A Active CN111211644B (en) | 2020-03-19 | 2020-03-19 | Automatic self-protection motor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114709640A (en) * | 2022-04-12 | 2022-07-05 | 武汉新辉天科技有限公司 | Printed board type rectangular connector hardware connecting mechanism |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3794392B2 (en) * | 2003-02-25 | 2006-07-05 | 日産自動車株式会社 | Electric vehicle drive unit |
| CN201937399U (en) * | 2011-02-23 | 2011-08-17 | 北京运通恒昌驱动技术有限公司 | DC brushless motor driving device with function of overhigh counter electromotive force protection |
| CN203707957U (en) * | 2014-01-16 | 2014-07-09 | 柳州师范高等专科学校 | Motor with intelligent cooling device |
| CN105207415A (en) * | 2015-09-28 | 2015-12-30 | 无锡市南方防爆电机有限公司 | Temperature-controllable explosion-proof motor |
| CN206115379U (en) * | 2016-06-30 | 2017-04-19 | 林幼兰 | High -efficient liquid cooling radiator |
| CN207426907U (en) * | 2017-06-26 | 2018-05-29 | 邓文杰 | A kind of electric power electric motor protecting radiator |
| CN207269186U (en) * | 2017-07-11 | 2018-04-24 | 中山市风美照明科技有限公司 | A kind of motor with power-off protection function |
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Effective date of registration: 20201209 Address after: No.1, 4th floor, building B, Zhongteng Zhuohuan Industrial Park, No.12, Huanzhen East Road, Shunjiang Community Industrial Park, Beijiao Town, Shunde District, Foshan City, Guangdong Province Applicant after: FOSHAN ZHAOCHANG ELECTRICAL APPLIANCE Co.,Ltd. Address before: Room 705, building 3, huichanghui, Shuixin north, Songtai street, Lucheng District, Wenzhou City, Zhejiang Province 325000 Applicant before: Wenzhou tasing Electronic Technology Co.,Ltd. |
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