CN112874314A - High-temperature warning device of electric vehicle controller - Google Patents
High-temperature warning device of electric vehicle controller Download PDFInfo
- Publication number
- CN112874314A CN112874314A CN202011609858.XA CN202011609858A CN112874314A CN 112874314 A CN112874314 A CN 112874314A CN 202011609858 A CN202011609858 A CN 202011609858A CN 112874314 A CN112874314 A CN 112874314A
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- Prior art keywords
- groove
- electric vehicle
- vehicle controller
- shell
- motor
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B3/00—Audible signalling systems; Audible personal calling systems
- G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
Abstract
The invention discloses a high-temperature warning device of an electric vehicle controller, which comprises a mounting plate, wherein a shell is fixedly arranged on the top surface of the mounting plate, a hollow groove is formed in the shell, an insertion groove is formed in the bottom surface of the hollow groove, the electric vehicle controller matched with the hollow groove is detachably arranged in the insertion groove, a plurality of linear radiating fins distributed at equal intervals are fixedly connected to the top surface of the electric vehicle controller, and a plurality of linear grooves distributed at equal intervals are formed in two sides of the electric vehicle controller. According to the electric vehicle controller, the temperature sensing module is fixedly arranged in the middle of the bottom surface of the top groove, the controller is fixedly arranged in the middle of the top surface of the top cover, the buzzer is fixedly arranged on the top surface of the top cover, and the motor is embedded in the top surface of the base, so that a sound warning can be given out when the electric vehicle controller is too hot, meanwhile, the heat dissipation efficiency of the electric vehicle controller can be improved by accelerating air circulation, and the electric vehicle controller is prevented from being damaged due to long-time operation in a high-temperature environment.
Description
Technical Field
The invention relates to the technical field of high-temperature warning of electric vehicle controllers, in particular to a high-temperature warning device for an electric vehicle controller.
Background
The electric vehicle controller is designed comprehensively considering the actual use conditions of the storage battery and the motor, the relation among the storage battery, the controller and the motor is fully considered, and the storage battery, the controller and the motor are designed as a comprehensive system, so that a more ideal electric vehicle controller is obtained, the electric vehicle controller is not a commercially available electric vehicle speed regulator which only has the functions of stepless speed regulation, braking power failure, soft start and the like, and has the functions of reverse charging, locked rotor protection, dynamic and static phase-lacking protection, cruise alarm, high-speed control, mode switching, an abs system and the like;
at present, electric vehicles become the main transportation means for most people to go out, and the people using the electric vehicles are also very wide, but most users cannot pay attention to the potential safety hazard that fire disasters may be brought to the vehicles due to high temperature generated by a controller in the use process of the electric vehicles, so that the invention of the high-temperature warning device for the electric vehicle controller is necessary to solve the problems.
Disclosure of Invention
The invention aims to provide a high-temperature warning device for an electric vehicle controller, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a high-temperature warning device for an electric vehicle controller comprises a mounting plate, wherein a shell is fixedly arranged on the top surface of the mounting plate, a hollow groove is formed in the shell, an insertion groove is formed in the bottom surface of the hollow groove, the electric vehicle controller matched with the insertion groove is detachably arranged in the insertion groove, a plurality of linear radiating fins distributed at equal intervals are fixedly connected to the top surface of the electric vehicle controller, and a plurality of linear grooves distributed at equal intervals are formed in two sides of the electric vehicle controller;
the top end of the shell is detachably connected with a top cover, the middle part of the bottom surface of the top cover is provided with a top groove, the middle part of the bottom surface of the top groove is fixedly provided with a temperature sensing module, the middle part of the top surface of the top cover is fixedly provided with a controller, the top surface of the top cover is also fixedly provided with a buzzer, the edge of one side of the top surface of the mounting plate is fixedly provided with a base, the top surface of the base is embedded with a motor, the side wall of the empty groove close to one side of the motor is provided with mutually communicated through grooves, the middle part of one side of the shell close to the motor is fixedly connected with a disc, the inside of the disc is provided with an inner cavity mutually communicated with the through grooves, the inside of the inner cavity is rotatably provided with a cooling fan, one end of the inner cavity close, and the one end that the motor was kept away from in the pivot runs through apron and radiator fan fixed connection, the radiating groove that mutual symmetry and communicate each other with the dead slot is seted up to one side lateral wall that the logical groove was kept away from to the dead slot.
Preferably, the temperature sensing module is electrically connected with the controller, and the controller is electrically connected with the buzzer and the motor.
Preferably, the bottom surface four corners department of top cap all fixes and is equipped with the fastener, the spacing groove has been seted up to the inside of fastener, the top surface four corners department of shell all fixes and is equipped with the quick assembly disassembly subassembly, the quick assembly disassembly subassembly include with the draw-in groove of fastener looks adaptation.
Preferably, one side of the lower end of the clamping groove is provided with spring grooves which are communicated with each other. The spring groove is characterized in that a spring is fixedly connected to the bottom of the spring groove, a pressing block is fixedly connected to one end, away from the bottom of the spring groove, of the spring, and a limiting block matched with the limiting groove is fixedly connected to the middle of one face, away from the spring, of the pressing block.
Preferably, the quick assembly disassembly subassembly still includes the two liang of mutual symmetrical bolts of embedding shell upper end two sides, the one end of bolt embedding shell runs through draw-in groove one side lateral wall fixedly connected with slider, the inserted bar of the mutual symmetry of one side fixedly connected with of bolt is kept away from to the slider, the one end that the slider was kept away from to the inserted bar and the compact heap one side fixed connection of keeping away from the spring.
Preferably, the rubber head is embedded into the middle of one side of the shell, which is far away from the motor, the wire harness is fixedly connected to the middle of one side of the electric vehicle controller, which is far away from the through groove, and the wire harness penetrates through the rubber head and protrudes out of the shell.
Preferably, the cover plate is fixedly arranged at a notch position of the inner cavity close to the motor, and a dustproof net is fixedly arranged inside the fan-shaped through groove.
The invention has the technical effects and advantages that:
1. according to the electric vehicle controller, the temperature sensing module is fixedly arranged in the middle of the bottom surface of the top groove, the controller is fixedly arranged in the middle of the top surface of the top cover, the buzzer is also fixedly arranged on the top surface of the top cover, and the motor is embedded in the top surface of the base, so that a sound warning can be given out when the electric vehicle controller is over-high in temperature, meanwhile, the heat dissipation efficiency of the electric vehicle controller can be improved by accelerating air circulation, and the situation that the electric vehicle controller is damaged due to long-time operation in a high-temperature environment is;
2. according to the invention, the clamping pieces are fixedly arranged at the four corners of the bottom surface of the top cover, the limiting grooves are formed in the clamping pieces, and the quick assembly and disassembly assemblies are fixedly arranged at the four corners of the top surface of the shell, so that the top cover and the shell can be quickly assembled and disassembled.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic sectional view of the housing of the present invention.
FIG. 3 is an enlarged view of the position A in FIG. 2 according to the present invention.
Fig. 4 is a schematic cross-sectional structure view of the card slot of the present invention.
FIG. 5 is an enlarged view of the position B in FIG. 4 according to the present invention.
Fig. 6 is a schematic perspective view of the cover plate of the present invention.
In the figure: 1. mounting a plate; 11. a base; 111. a motor; 2. a housing; 21. an empty groove; 211. a slot; 22. a through groove; 23. a heat sink; 24. a rubber head; 3. a disc; 31. an inner cavity; 311. a heat radiation fan; 32. a cover plate; 321. a fan-shaped through groove; 3211. a dust screen; 4. an electric vehicle controller; 41. a heat sink; 42. a groove; 43. a wire harness; 5. a top cover; 51. a top groove; 511. a temperature sensing module; 52. a controller; 53. a buzzer; 54. a fastener; 541. a limiting groove; 6. a quick assembly disassembly assembly; 61. a card slot; 62. a spring slot; 621. a spring; 622. a compression block; 623. a limiting block; 63. a bolt; 631. a slider; 6311. and (4) inserting the rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a high-temperature warning device of an electric vehicle controller as shown in figures 1-6, which comprises a mounting plate 1, wherein a housing 2 is fixedly arranged on the top surface of the mounting plate 1, a hollow groove 21 is formed in the housing 2, an inserting groove 211 is formed in the bottom surface of the hollow groove 21, an electric vehicle controller 4 matched with the hollow groove 211 is detachably arranged in the inserting groove 211, a plurality of radiating fins 41 distributed at equal intervals in a linear shape are fixedly connected on the top surface of the electric vehicle controller 4, a plurality of grooves 42 distributed at equal intervals in a linear shape are formed in both sides of the electric vehicle controller 4, the housing 2 plays a role in protecting the electric vehicle controller 4, the electric vehicle controller 4 is provided with a plurality of radiating fins 41 on the top surface, the radiating fins 41 are made of metal copper materials, the radiating fins 41 made of metal copper materials have good radiating effect, the radiating effect of the metal copper materials can accelerate the, the contact area between the outer surface of the electric vehicle controller 4 and the outside air is increased, and the heat dissipation efficiency of the electric vehicle controller 4 is further improved, so that the electric vehicle controller 4 has a good heat dissipation effect;
the top end of the shell 2 is detachably connected with a top cover 5, the middle part of the bottom surface of the top cover 5 is provided with a top groove 51, the middle part of the bottom surface of the top groove 51 is fixedly provided with a temperature sensing module 511, the middle part of the top surface of the top cover 5 is fixedly provided with a controller 52, the top surface of the top cover 5 is also fixedly provided with a buzzer 53, one side edge of the top surface of the mounting plate 1 is fixedly provided with a base 11, the top surface of the base 11 is embedded with a motor 111, the side wall of the empty groove 21 close to the motor 111 is provided with a through groove 22 which is mutually communicated, the middle part of one side of the shell 2 close to the motor 111 is fixedly connected with a disc 3, the inside of the disc 3 is provided with an inner cavity 31 which is mutually communicated with the through groove 22, the inside of the inner cavity 31 is rotatably provided with a cooling fan 311, and the end of the rotating shaft far away from the motor 111 penetrates the cover plate 32 to be fixedly connected with the heat dissipation fan 311, the side wall of the hollow groove 21 far away from the through groove 22 is provided with the heat dissipation grooves 23 which are mutually symmetrical and are mutually communicated with the hollow groove 21, the top cover 5 is inserted in the clamping groove 61 through the clamping piece 54 to be detachably connected with the shell 2, the internal environmental temperatures of the top groove 51 and the hollow groove 21 are detected through the temperature sensing module 511, the detected temperature data are fed back to the controller 52, when the internal environmental temperatures of the top groove 51 and the hollow groove 21 are overhigh, the controller 52 controls the buzzer 53 to give out sound warning, and simultaneously controls the motor 111 to be started, the motor 111 drives the heat dissipation fan 311 to rotate through the rotating shaft, the heat dissipation fan 311 accelerates the internal air of the inner cavity 31 to flow towards the hollow groove 21 and sucks the external air into the inner cavity 31 through the fan-shaped through groove 321 to accelerate, the inside heat of electric vehicle controller 4 will be transferred to in the air, absorbed thermal air and discharged the external world through radiating groove 23, motor 111 continuously operates, the radiating efficiency of electric vehicle controller 4 will accelerate for can send out the sound warning when electric vehicle controller 4 high temperature, can also promote electric vehicle controller 4's radiating efficiency through the circulation of air with higher speed simultaneously, avoid electric vehicle controller 4 to lead to the condition of damage to take place because of being in long-time operation under the high temperature environment.
The temperature sensing module 511 is electrically connected to the controller 52, and the controller 52 is electrically connected to both the buzzer 53 and the motor 111, so as to further explain the connection relationship of the controller 52.
The spring grooves 62 which are communicated with each other are formed at one side of the lower end of the clamping groove 61. The bottom of the spring groove 62 is fixedly connected with a spring 621, one end of the spring 621 far away from the bottom of the spring groove 62 is fixedly connected with a pressing block 622, the middle part of one surface of the pressing block 622 far away from the spring 621 is fixedly connected with a limiting block 623 matched with the limiting groove 541, the clamping piece 54 is inserted in the clamping groove 61, the clamping piece 54 extrudes the limiting piece 623, the limiting piece 623 is extruded by the clamping piece 54 to move towards the bottom of the spring groove 62, the limiting piece 623 drives the pressing block 622 to move towards the bottom of the spring groove 62, when the pressing block 622 moves towards the bottom of the spring groove, the spring 621 is compressed, the internal elastic potential energy is increased, when the bottom end of the clip 54 is engaged with the bottom surface of the slot 61, the stop block 623 is inserted into the stop slot 541 under the elastic force of the spring 621, so that the stop block 623 can perform limit locking on the clip piece 54 inserted in the slot 61, therefore, the clamping piece 54 inserted in the clamping groove 61 is not easy to fall off by itself.
Quick assembly disassembly subassembly 6 is still including the bolt 63 of two liang of mutual symmetries on embedding shell 2 upper end two sides, the one end that bolt 63 embedding shell 2 runs through draw-in groove 61 one side lateral wall fixedly connected with slider 631, the inserted bar 6311 of the mutual symmetry of one side fixedly connected with of bolt 63 is kept away from to slider 631, the one end that slider 631 was kept away from to inserted bar 6311 and compact heap 622 one side fixed connection who keeps away from spring 621, when needs are dismantled top cap 5, press bolt 63, bolt 63 drives slider 631 and removes to spring groove 62 direction, slider 631 drives compact heap 622 through inserted bar 6311 and removes to spring groove 62 tank bottom direction, compact heap 622 drives stopper 623 and takes out from the spacing inslot, relieve the spacing locking to fastener 54, make top cap 5 dismantle fast.
The embedding of one side middle part that motor 111 was kept away from to shell 2 has rubber head 24, and electric vehicle controller 4 keeps away from one side middle part fixedly connected with pencil 43 that leads to groove 22, and pencil 43 runs through rubber head 24 and protrudes in the outside of shell 2, and rubber head 24 plays the guard action to pencil 43.
The cover plate 32 is fixedly arranged at the position of the notch of the inner cavity 31 close to the motor 111, and the dustproof net 3211 is fixedly arranged in the fan-shaped through groove 321, so that the dust can be effectively prevented from entering the empty groove 21 to influence the electric vehicle controller 4 while the heat dissipation efficiency of the electric vehicle controller 4 can be accelerated.
The working principle of the invention is as follows: the shell 2 plays a role in protecting the electric vehicle controller 4, the electric vehicle controller 4 is provided with a plurality of radiating fins 41 on the top surface, the radiating fins 41 are made of metal copper materials, the radiating fins 41 made of the metal copper materials have a good radiating effect and can accelerate the heat dissipation of the electric vehicle controller 4, the electric vehicle controller 4 is provided with a plurality of grooves 42 on two sides, the contact area between the outer surface of the electric vehicle controller 4 and the outside air is increased, the heat dissipation efficiency of the electric vehicle controller 4 is further improved, and the electric vehicle controller 4 has a good heat dissipation effect;
the top cover 5 is inserted into the clamping groove 61 through the clamping piece 54 and detachably connected with the housing 2, the internal environment temperature of the top groove 51 and the hollow groove 21 is detected through the temperature sensing module 511, the detected temperature data is fed back to the controller 52, when the internal environment temperature of the top groove 51 and the hollow groove 21 is overhigh, the controller 52 controls the buzzer 53 to give out a sound alarm, the motor 111 is controlled to be started, the motor 111 drives the heat dissipation fan 311 to rotate through the rotating shaft, the heat dissipation fan 311 accelerates the internal air of the inner cavity 31 to flow towards the hollow groove 21 and sucks the external air into the inner cavity 31 through the fan-shaped through groove 321 to accelerate the internal air of the hollow groove 21 to flow towards the heat dissipation groove 23, when the air flows inside the hollow groove 21, the internal heat of the electric vehicle controller 4 is transferred into the air, the air absorbing the heat is discharged to the outside through the heat dissipation groove 23, the motor 111 continuously operates, and the heat dissipation efficiency, make can send out sound warning when electric vehicle controller 4 high temperature, can also promote electric vehicle controller 4's radiating efficiency simultaneously through the circulation of air with higher speed, avoid electric vehicle controller 4 to take place because of being in the condition that long-time operation leads to damaging under the high temperature environment.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (7)
1. The utility model provides an electric vehicle controller high temperature warning device, includes mounting panel (1), its characterized in that: the top surface of the mounting plate (1) is fixedly provided with a shell (2), an empty groove (21) is formed in the shell (2), an inserting groove (211) is formed in the bottom surface of the empty groove (21), an electric vehicle controller (4) matched with the inserting groove (211) is detachably arranged in the inserting groove (211), the top surface of the electric vehicle controller (4) is fixedly connected with a plurality of radiating fins (41) which are linearly distributed at equal intervals, and two sides of the electric vehicle controller (4) are respectively provided with a plurality of grooves (42) which are linearly distributed at equal intervals;
the top end of the shell (2) is detachably connected with a top cover (5), a top groove (51) is formed in the middle of the bottom surface of the top cover (5), a temperature sensing module (511) is fixedly arranged in the middle of the bottom surface of the top groove (51), a controller (52) is fixedly arranged in the middle of the top surface of the top cover (5), a buzzer (53) is further fixedly arranged on the top surface of the top cover (5), a base (11) is fixedly arranged at the edge of one side of the top surface of the mounting plate (1), a motor (111) is embedded into the top surface of the base (11), a through groove (22) which is communicated with each other is formed in the side wall of the empty groove (21) close to the motor (111), a disc (3) is fixedly connected to the middle of one side of the shell (2) close to the motor (111), an inner cavity (31) which is communicated with the through groove (22) is formed in, apron (32) have been embedded to the one end that inner chamber (31) are close to motor (111), a plurality of fan-shaped logical grooves (321) that are the ring array and distribute are seted up to the inside of apron (32), the one end middle part that motor (111) are close to disc (3) is equipped with the pivot, and the one end that motor (111) were kept away from in the pivot runs through apron (32) and radiator fan (311) fixed connection, one side lateral wall that logical groove (22) were kept away from in dead slot (21) is seted up mutual symmetry and is communicate each other with dead slot (21) radiating groove (23).
2. The high-temperature warning device for the electric vehicle controller according to claim 1, wherein: the temperature sensing module (511) is electrically connected with the controller (52), and the controller (52) is electrically connected with the buzzer (53) and the motor (111).
3. The high-temperature warning device for the electric vehicle controller according to claim 1, wherein: fastener (54) are all fixed to be equipped with in the bottom surface four corners department of top cap (5), spacing groove (541) have been seted up to the inside of fastener (54), the top surface four corners department of shell (2) all fixes and is equipped with quick assembly disassembly subassembly (6), quick assembly disassembly subassembly (6) include with draw-in groove (61) of fastener (54) looks adaptation.
4. The high temperature warning device of the electric vehicle controller according to claim 3, wherein: and one side of the lower end of the clamping groove (61) is provided with spring grooves (62) which are communicated with each other. The spring groove structure is characterized in that a spring (621) is fixedly connected to the groove bottom of the spring groove (62), a pressing block (622) is fixedly connected to one end, far away from the groove bottom of the spring groove (62), of the spring (621), and a limiting block (623) matched with the limiting groove (541) is fixedly connected to the middle of one face, far away from the spring (621), of the pressing block (622).
5. The high-temperature warning device for the electric vehicle controller according to claim 4, wherein: quick assembly disassembly subassembly (6) are still including inserting bolt (63) of two liang of mutual symmetries on shell (2) upper end two sides, the one end of bolt (63) embedding shell (2) runs through draw-in groove (61) one side lateral wall fixedly connected with slider (631), inserted bar (6311) of the mutual symmetry of one side fixedly connected with of bolt (63) is kept away from in slider (631), one side fixed connection of spring (621) is kept away from with compact heap (622) to the one end that slider (631) were kept away from in inserted bar (6311).
6. The high-temperature warning device for the electric vehicle controller according to claim 1, wherein: the motor (111) is kept away from in shell (2) one side middle part embedding have rubber head (24), electric vehicle controller (4) keep away from one side middle part fixedly connected with pencil (43) of leading to groove (22), pencil (43) run through rubber head (24) and protrude in the outside of shell (2).
7. The high-temperature warning device for the electric vehicle controller according to claim 1, wherein: the cover plate (32) is fixedly arranged at the position of a notch of the inner cavity (31) close to the motor (111), and the dustproof net (3211) is fixedly arranged inside the fan-shaped through groove (321).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011609858.XA CN112874314A (en) | 2020-12-30 | 2020-12-30 | High-temperature warning device of electric vehicle controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011609858.XA CN112874314A (en) | 2020-12-30 | 2020-12-30 | High-temperature warning device of electric vehicle controller |
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| Publication Number | Publication Date |
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| CN112874314A true CN112874314A (en) | 2021-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011609858.XA Pending CN112874314A (en) | 2020-12-30 | 2020-12-30 | High-temperature warning device of electric vehicle controller |
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| CN211209621U (en) * | 2019-12-20 | 2020-08-07 | 苏州福豪斯电子科技有限公司 | Motor controller |
| CN212220133U (en) * | 2020-03-19 | 2020-12-25 | 韩冰 | Automobile power supply with heat dissipation function and convenient to maintain |
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| JP2018026419A (en) * | 2016-08-09 | 2018-02-15 | 李魁杓 | Method for radiating electric vehicle controller |
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| CN206685645U (en) * | 2017-04-28 | 2017-11-28 | 嵊州市嘉晟泵业有限公司 | A kind of air regulator private jack |
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| CN212220133U (en) * | 2020-03-19 | 2020-12-25 | 韩冰 | Automobile power supply with heat dissipation function and convenient to maintain |
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