CN216134387U - Power-off protection type motor structure - Google Patents
Power-off protection type motor structure Download PDFInfo
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- CN216134387U CN216134387U CN202121963419.9U CN202121963419U CN216134387U CN 216134387 U CN216134387 U CN 216134387U CN 202121963419 U CN202121963419 U CN 202121963419U CN 216134387 U CN216134387 U CN 216134387U
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Abstract
The utility model discloses a power-off protection type motor structure which comprises a control circuit and a motor main body, wherein the motor main body is provided with a motor coil and an overload detector, the control circuit regulates and controls the connection and disconnection between the motor coil and a power supply through a power-off trigger, the overload detector comprises a temperature sensor and/or a current detector which is matched with the control circuit, and when the temperature sensor detects that the temperature of the motor coil exceeds a preset over-temperature threshold value or the current detector detects that the current of the motor coil exceeds a preset over-current threshold value, the current detector triggers the control circuit to output a power-off signal to the power-off trigger so that the power-off trigger cuts off the power supply of the power supply to the motor coil of the motor main body. The utility model can automatically cut off the power of the motor and stop the operation when the temperature of the motor coil exceeds a preset over-temperature threshold or the current exceeds a preset over-current threshold, thereby playing the protection role of preventing the motor from being overloaded and burnt.
Description
Technical Field
The utility model relates to the technical field of motor structures, in particular to a power-off protection type motor structure.
Background
The existing motor generally does not have an automatic power-off structure, when the motor operates for a long time, the motor is easy to burn out due to overhigh temperature or short circuit of a coil, and the motor structure has short service life, so the improvement is needed.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide a power-off protection type motor structure, which monitors the temperature and the current of a motor coil through a temperature sensor and/or a current detector, and when the temperature of the motor coil exceeds a preset over-temperature threshold or the current exceeds a preset over-current threshold, the motor is powered off and stops running, so that the motor is protected from overload and burning, the installation performance of the motor is improved, and the service life of the motor is prolonged.
In order to achieve the purpose, the utility model adopts the technical scheme that: a power-off protection type motor structure comprises a control circuit and a motor body, wherein the motor body is provided with a motor coil and an overload detector used for detecting the temperature and/or the current of the motor coil, the control circuit regulates the connection and disconnection between the motor coil and a power supply through a power-off trigger, the overload detector comprises a temperature sensor and/or a current detector matched with the control circuit, when the temperature sensor detects that the temperature of the motor coil exceeds a preset over-temperature threshold value or the current detector detects that the current of the motor coil exceeds a preset over-current threshold value, the current detector triggers the control circuit to output a power-off signal to the power-off trigger so that the power-off trigger disconnects the power supply to the motor coil of the motor body.
In a further technical scheme, the power-off trigger comprises a temperature control switch or a self-recovery fuse which is connected in series with an external power supply.
In a further technical scheme, the temperature sensor is a thermocouple sensor, a thermistor, a thermal diode or an IC temperature sensor.
In a further technical scheme, the motor main body is provided with a motor support and a Hall plate fixedly installed on the motor support, the Hall plate is provided with a plurality of welding wire grooves used for accommodating a plurality of wires electrically connected with the motor coil, one end of each welding wire groove is arranged to be a long and narrow wire inlet groove for the wires to penetrate, and the other end of each welding wire groove is arranged to be a wire hanging hole communicated with the wire inlet groove and in a semicircular shape or an arc shape.
In a further technical scheme, the welding wire groove is approximately in an inverted L shape.
In a further technical scheme, the temperature sensor is mounted on a motor support or a Hall plate.
In a further technical scheme, the motor main body is rotatably provided with a rotating shaft core, the rotating shaft core is provided with a hollow structure with a cavity, the rotating shaft core is provided with a wire inlet through hole communicated with the cavity, and the cavity and the wire inlet through hole are both used for guiding a wire.
After adopting the structure, compared with the prior art, the utility model has the advantages that:
1. the utility model monitors the temperature and the current of the motor coil through the temperature sensor and/or the current detector, when the temperature sensor detects that the temperature of the motor coil exceeds a preset over-temperature threshold or the current detector detects that the current of the motor coil exceeds a preset over-current threshold, the power-off trigger outputs a power-off signal to the power supply, so that the motor stops running, the motor has the protection function of overload and burning damage prevention, the installation performance of the motor is improved, and the service life of the motor is prolonged.
2. The Hall plate is provided with a plurality of welding wire grooves for the lead to penetrate through, one end of each welding wire groove is arranged to be a long and narrow wire inlet groove for the lead to penetrate through, and the other end of each welding wire groove is arranged to be a wire hanging hole which is communicated with the wire inlet groove and is semicircular or arc-shaped. In the actual assembly process, the wires led out by the motor coils are loaded into the Hall plate from the wire inlet grooves and hung on the Hall plate through the wire hanging holes, the structure is convenient for the wires to be welded on the Hall plate, and the wires can be effectively prevented from sliding out of the welding grooves in the welding process. Wherein the shape of the welding wire groove is approximately in an inverted L shape.
3. The rotating shaft core is provided with a hollow structure with a cavity, the rotating shaft core is provided with a wire inlet through hole communicated with the cavity, the cavity and the wire inlet through hole are used for guiding a wire, and the wire is prevented from being wound on the rotating shaft core and being twisted off in the long-term rotating process of the motor.
Drawings
The utility model is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural diagram of the present invention.
Detailed Description
The following are merely preferred embodiments of the present invention, and do not limit the scope of the present invention.
As shown in fig. 1 to 2, the present invention provides a power-off protection type motor structure, which includes a control circuit and a motor body 1, wherein the motor body 1 is provided with a motor coil and an overload detector for detecting a temperature and/or a current of the motor coil, the control circuit regulates and controls a connection and disconnection between the motor coil and a power supply source via a power-off trigger, the overload detector includes a temperature sensor and/or a current detector cooperating with the control circuit, and when the temperature sensor detects that the temperature of the motor coil exceeds a preset over-temperature threshold or when the current detector detects that the current of the motor coil exceeds a preset over-current threshold, the current detector triggers the control circuit to output a power-off signal to the power-off trigger so that the power-off trigger disconnects the power supply source to supply power to the motor coil of the motor body 1. The utility model monitors the temperature and the current of the motor coil through the temperature sensor and/or the current detector, when the temperature sensor detects that the temperature of the motor coil exceeds a preset over-temperature threshold or the current detector detects that the current of the motor coil exceeds a preset over-current threshold, the power-off trigger outputs a power-off signal to the power supply, so that the motor stops running, the motor has the protection function of overload and burning damage prevention, the installation performance of the motor is improved, and the service life of the motor is prolonged.
Specifically, the power-off trigger comprises a temperature-controlled switch or a self-recovery fuse which is connected with a power supply source connected to the outside in series.
Specifically, the temperature sensor is a thermocouple sensor, a thermistor, a thermal diode or an IC temperature sensor.
Specifically, motor body 1 is provided with motor support 11 and fixed mounting in the hall plate 12 of motor support 11, and hall plate 12 offers and is used for holding a plurality of wire welding grooves 120 of establishing a plurality of wires with motor coil electric connection, and the one end of wire welding groove 120 sets up to the long and narrow income line groove that supplies the wire to penetrate, and the other end sets up to and goes into the line groove intercommunication and be the hanging wire hole of semicircle or arc form. In the actual assembly process, the wires led out by the motor coils are loaded into the Hall plate 12 from the wire inlet grooves and hung through the wire hanging holes, the structure is convenient for the wires to be welded on the Hall plate 12, and the wires can be effectively prevented from sliding out of the welding grooves 120 during welding. As shown in fig. 2, the wire groove 120 is substantially in the shape of an inverted L.
In a possible embodiment, the temperature sensor is mounted to the motor bracket 11 or the hall plate 12.
Specifically, the motor body 1 is provided with a rotating shaft core 13 in a rotating manner, the rotating shaft core 13 is provided with a hollow structure with a cavity 130, the rotating shaft core 13 is provided with a wire inlet through hole 131 communicated with the cavity 130, the cavity 130 and the wire inlet through hole 131 are both used for guiding a wire, and the wire is prevented from being twisted on the rotating shaft core 13 and being twisted off in the long-term rotating process of the motor.
The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.
Claims (7)
1. The utility model provides a power failure protection formula motor structure which characterized in that: the overload detection device comprises a temperature sensor and/or a current detector which are matched with the control circuit, wherein the temperature sensor detects that the temperature of the motor coil exceeds a preset over-temperature threshold value or the current detector detects that the current of the motor coil exceeds a preset over-current threshold value, the current detector triggers the control circuit to output a power-off signal to the power-off trigger so that the power-off trigger cuts off the power supply of the power supply to the motor coil of the motor body (1).
2. A power outage protected motor construction according to claim 1 characterised in that: the power-off trigger comprises a temperature control switch or a self-recovery fuse which is connected in series with an external power supply.
3. A power outage protected motor construction according to claim 1 characterised in that: the temperature sensor is a thermocouple sensor, a thermistor, a thermal diode or an IC temperature sensor.
4. A power outage protected motor construction according to claim 1 characterised in that: the motor body (1) is provided with motor support (11) and hall plate (12) fixed mounting in motor support (11), hall plate (12) are offered and are used for holding a plurality of wire casing (120) of establishing a plurality of wires with motor coil electric connection, the one end of wire casing (120) sets up to the long and narrow income line groove that supplies the wire to penetrate, the other end sets up to and goes into the line groove intercommunication and be the hanging wire hole of semicircle or arc form, the wire gets into the hanging wire downthehole via the income line groove, the soldering tin groove is used for welding the wire on hall plate (12).
5. A power failure protection type motor structure as claimed in claim 4, wherein: the shape of the welding wire groove (120) is approximately inverted L-shaped.
6. A power failure protection type motor structure as claimed in claim 4, wherein: the temperature sensor is arranged on the motor support (11) or the Hall plate (12).
7. A power outage protected motor construction according to claim 1 characterised in that: the motor body (1) rotates and is provided with a rotating shaft core (13), the rotating shaft core (13) is provided with a hollow structure with a cavity (130), the rotating shaft core (13) is provided with a wire inlet through hole (131) communicated with the cavity (130), and the cavity (130) and the wire inlet through hole (131) are both used for guiding a wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121963419.9U CN216134387U (en) | 2021-08-19 | 2021-08-19 | Power-off protection type motor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121963419.9U CN216134387U (en) | 2021-08-19 | 2021-08-19 | Power-off protection type motor structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216134387U true CN216134387U (en) | 2022-03-25 |
Family
ID=80770792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121963419.9U Active CN216134387U (en) | 2021-08-19 | 2021-08-19 | Power-off protection type motor structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216134387U (en) |
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2021
- 2021-08-19 CN CN202121963419.9U patent/CN216134387U/en active Active
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