CN210803672U - Motor detection device and motor detection system - Google Patents

Motor detection device and motor detection system Download PDF

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Publication number
CN210803672U
CN210803672U CN201921282721.0U CN201921282721U CN210803672U CN 210803672 U CN210803672 U CN 210803672U CN 201921282721 U CN201921282721 U CN 201921282721U CN 210803672 U CN210803672 U CN 210803672U
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China
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motor
controller
switch
current
path switching
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CN201921282721.0U
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Chinese (zh)
Inventor
尹增荣
周磊磊
邵国
张祺
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Shanghai Yuancheng Automobile Technology Co Ltd
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Shanghai Yuancheng Automobile Technology Co Ltd
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Abstract

The utility model provides a motor detection device and motor detecting system belongs to the motor and detects technical field. The controller power supply of the motor detection device, the input ends of the controller and the path switching device are sequentially connected, the output end of the path switching device is used for being connected with a motor to be detected, the current inductors are respectively connected and arranged between the controller power supply and the controller and between the path switching device and the motor to be detected, the plurality of current inductors are further respectively connected with the inductor power supply, the power analyzer comprises a current detection end and a voltage detection end, the current inductors are respectively connected with the current detection ends, and the equipotential point between the controller power supply and the equipotential point at the output end of the path switching device are respectively connected with the voltage detection ends. This motor detection device can carry out fast switch-over to three kinds of states of switch-on, disconnection and short circuit between controller and the motor, reduces the wiring frequency, improves the efficiency and the security that motor detected.

Description

Motor detection device and motor detection system
Technical Field
The utility model relates to a motor detection technology field particularly, relates to a motor detection device and motor detection system.
Background
With the rapid development of new energy automobiles, the requirements of people on the safety and the quality of the new energy automobiles are higher and higher. The driving system is one of the key parts of the new energy automobile, the efficiency of the driving system, the back electromotive force of the motor and the short-circuit current of the motor are the basis of the driving system and are key performance indexes, and the safety, effectiveness and efficiency of the test process and the result of the test directly influence the safety and quality of the whole automobile. At present, the efficiency of a driving system, the back electromotive force of a motor and the short-circuit current of the motor are separately and independently tested, and a connecting circuit connected between a controller and the motor needs to be switched on, switched off and short-circuited in the testing process so as to be tested.
However, in the current efficiency test, the short-circuit current test and the counter electromotive force test, the three states of connection, disconnection and short circuit between the controller and the motor need to be changed manually, the operation safety risk is high, complex wiring operation needs to be frequently carried out, and the efficiency is low.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a motor detection device and motor detecting system can carry out the fast switch-over to controller and three kinds of states of switch-on, disconnection and short circuit between the motor that awaits measuring, reduces the wiring frequency, improves the efficiency and the security that the motor detected.
The embodiment of the utility model is realized like this:
the utility model provides an aspect provides a motor detection device, include: the controller power supply, a controller, the route auto-change over device, a plurality of current sensors, inductor power and power analysis appearance, the controller power, the input of controller and route auto-change over device is connected in proper order, route auto-change over device's output is used for being connected with the motor that awaits measuring, current sensor connects respectively to be set up between controller power and controller and between route auto-change over device and the motor that awaits measuring, a plurality of current sensors still are connected with the inductor power respectively, power analysis appearance includes current detection end and voltage detection end, current sensor is connected with current detection end respectively, the equipotential between controller and the controller power and the equipotential of route auto-change over device output are connected with voltage detection end respectively.
Optionally, a circuit breaker is connected between the controller power supply and the controller.
Optionally, the current sensor connection is disposed between the controller and the circuit breaker.
Optionally, an input end and an output end of the path switching device are connected to form a main path, a short circuit is arranged on the main path to form a short circuit branch, the main path is provided with a first switch, the short circuit branch is provided with a second switch, and the current sequentially passes through the first switch and the second switch.
Optionally, the first switch and the second switch are both contactors.
Optionally, the motor detection device further includes a switch control device, and the first switch and the second switch are respectively connected to the switch control device, and the switch control device is used to respectively control the opening and closing of the first switch and the second switch.
Optionally, the controller and the motor to be tested are respectively connected with the path switching device in three phases, the current sensors are respectively connected to each phase circuit between the path switching device and the motor to be tested, and the plurality of current sensors are respectively connected with the end points of the current detection ends in a one-to-one correspondence manner.
Optionally, each phase end point of the output end of the path switching device and the input end of the controller are respectively connected with the end points of the voltage detection ends in a one-to-one correspondence manner.
Optionally, the controller power supply is a dc power supply.
The embodiment of the utility model provides an on the other hand provides a motor detection system, including the motor detection device of above-mentioned arbitrary one.
The utility model discloses beneficial effect includes:
an embodiment of the utility model provides a pair of motor detection device, including controller power, controller, route auto-change over device, a plurality of current-sensing ware, inductor power and power analysis appearance. Wherein, the controller power, the controller and the input of route auto-change over device establish ties each other, during the use, the motor that awaits measuring is connected in route auto-change over device's output, be the controller power supply through the controller power, the controller can control the electric power input of treating the motor that awaits measuring, through the route auto-change over device that is connected the setting between controller and the motor that awaits measuring, can control the switch-on of circuit connection between controller and the motor that awaits measuring, disconnection and short circuit three kinds of states, thereby realize treating the efficiency detection that the motor that awaits measuring goes on, the quick switch-over between three kinds of detections of motor back electromotive force detection and motor short circuit current detection, loaded down with trivial details when changing the motor detection project, the efficiency of treating the motor that awaits measuring and carrying out the detection has been improved, and the safety risk.
The embodiment of the utility model provides a motor detection system adopts foretell motor detection device, can carry out the fast switch-over to switch-on, disconnection and three kinds of states of short circuit between controller and the motor, reduces the wiring frequency, improves the efficiency and the security that the motor detected.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a motor detection device provided in an embodiment of the present invention;
fig. 2 is a schematic diagram of an internal circuit of the path switching device of the motor detection apparatus according to an embodiment of the present invention.
Icon: 110-controller power supply; 120-a controller; 130-path switching means; 131-main path; 132-short circuit branch; 1331-a first switch; 1332-a second switch; 140-a current sensor; 150-inductor power supply; 160-power analyzer; 161-current detection terminal; 162-voltage detection terminal; 170-circuit breaker protector; 180-switch control means; 210-Motor under test.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
An embodiment of the utility model provides a motor detection device, as shown in fig. 1, include: the controller power supply 110, the controller 120, the path switching device 130, the plurality of current sensors 140, the sensor power supply 150 and the power analyzer 160, wherein input ends of the controller power supply 110, the controller 120 and the path switching device 130 are sequentially connected, an output end of the path switching device 130 is used for being connected with a motor 210 to be tested, the current sensors 140 are respectively connected between the controller power supply 110 and the controller 120 and between the path switching device 130 and the motor 210 to be tested, the plurality of current sensors 140 are also respectively connected with the sensor power supply 150, the power analyzer 160 comprises a current detection end 161 and a voltage detection end 162, the current sensors 140 are respectively connected with the current detection end 161, and an equipotential point between the controller power supply 120 and the controller power supply 110 and an equipotential point at an output end of the path switching device 130 are respectively connected with the voltage detection end 162.
In use, the motor 210 to be tested is connected to the path switching device 130. The state between the controller 120 and the motor 210 to be tested is switched to be on through the path switching device 130, and the efficiency of the motor 210 to be tested can be obtained by analyzing data measured by the current detection end 161 and the voltage detection end 162 by using the power analyzer 160; the state between the controller 120 and the motor 210 to be tested is switched off through the path switching device 130, and the back electromotive force of the motor 210 to be tested can be obtained through analysis by using the data measured by the voltage detection end 162 of the power analyzer 160; the state between the controller 120 and the motor 210 to be tested is switched to be short-circuited by the path switching device 130, so that the motor is short-circuited, and the short-circuit current of the motor 210 to be tested can be obtained by analyzing data measured by the current detection terminal 161 of the power analyzer 160.
It should be noted that, first, the inductor power source 150 is usually one, and has a plurality of output terminals, which can respectively provide power for the plurality of current inductors 140. Of course, in practical applications, the inductor power source 150 may be provided in plural, and each current inductor 140 is connected to one inductor power source 150. In the embodiment of the present invention, the number of the inductor power sources 150 and the corresponding connection relationship with the current inductor 140 are not limited herein, as long as the current inductor 140 can obtain power support.
Second, the power analyzer 160 is usually a high-precision power analyzer 160 that is commercially available, and of course, in the embodiment of the present invention, other power analyzers 160 that are commercially available may also be used, which is not limited herein.
Third, the connection circuit between the motor 210 to be tested and the path switching device 130 and the connection circuit between the path switching device 130 and the controller 120 may be a single-phase connection or a two-phase or three-phase connection, which is not limited herein.
An embodiment of the present invention provides a motor detection device, including controller power supply 110, controller 120, route auto-change over device 130, a plurality of current sensors 140, inductor power supply 150 and power analyzer 160. Wherein, the input terminals of the controller power source 110, the controller 120 and the path switching device 130 are connected in series, when in use, the motor 210 to be tested is connected to the output terminal of the path switching device 130, by supplying power to the controller 120 through the controller power supply 110, the controller 120 can control the power input to the motor 210 to be measured, the access switching device 130 connected between the controller 120 and the motor 210 to be tested can control the connection, disconnection and short circuit of the circuit connection between the controller 120 and the motor 210 to be tested, therefore, the efficiency detection, the motor back electromotive force detection and the motor short-circuit current detection of the motor 210 to be detected are rapidly switched, complex wire dismounting and replacing operations during changing motor detection items are avoided, the efficiency of detecting the motor 210 to be detected is improved, and the safety risk caused by frequent wiring is reduced.
Optionally, as shown in fig. 1, a circuit breaker 170 is connected between the controller power source 110 and the controller 120.
The circuit breaker protector 170 is connected between the controller power supply 110 and the controller 120, and when the current between the controller power supply 110 and the controller 120 is too large, that is, the load of the controller 120 is too large, the circuit breaker protector 170 can automatically perform power-off protection, so that accidents caused by the too large current are avoided, and the safety of the motor detection device is improved.
Optionally, as shown in fig. 1, the current sensor 140 is disposed between the controller 120 and the circuit breaker 170.
Here, the current sensor 140 is a current sensor 140 connected between the controller power supply 110 and the controller 120, and when the circuit breaker 170 is provided, the current sensor 140 is provided between the controller 120 and the circuit breaker 170, so that the current sensor 140 can more accurately measure the magnitude of the current input to the controller 120, and the influence of the circuit breaker 170 on the current measurement can be reduced.
Alternatively, as shown in fig. 2, the input terminal and the output terminal of the path switching device 130 are connected to form a main circuit 131, a short circuit is provided on the main circuit 131 to form a short circuit branch 132, the main circuit 131 is provided with a first switch 1331, the short circuit branch 132 is provided with a second switch 1332, and the current passes through the first switch 1331 and the second switch 1332 in sequence.
In use, since the first switch 1331 is disposed on the main circuit 131 and the second switch 1332 is disposed on the short-circuit branch 132, the input and output terminals of the path switching device 130 can be in an off state by turning off both the first switch 1331 and the second switch 1332, that is, the state between the controller 120 and the motor 210 to be tested, which are respectively connected to the input and output terminals of the path switching device 130, is off; the first switch 1331 is turned on, the second switch 1332 is turned off, the main circuit 131 is turned on, the short-circuit branch 132 is turned off, at this time, the input end and the output end of the path switching device 130 connected through the main circuit 131 are turned on, that is, the state between the controller 120 and the motor 210 to be tested is on; the first switch 1331 is opened, the second switch 1332 is closed, the main circuit 131 is opened, the short-circuit branch 132 is turned on, at this time, the output end of the path switching device 130 is short-circuited by the short-circuit branch 132, that is, the controller 120 is disconnected from the motor 210 to be tested, and the motor 210 to be tested is in a short-circuit state.
The connection circuit between the input terminal and the output terminal of the path switching device 130 is configured as described above, which is simple and easy to use, and facilitates troubleshooting and maintenance when a fault occurs.
Optionally, the first switch 1331 and the second switch 1332 are both contactors.
The first switch 1331 and the second switch 1332 are provided as contactors, so that the first switch 1331 and the second switch 1332 are more convenient in opening and closing operations. Can avoid manual work to go up manual operation directly, reduce operating personnel operation process's safety risk.
Optionally, as shown in fig. 1, the motor detection device further includes a switch control device 180, and the first switch 1331 and the second switch 1332 are respectively connected to the switch control device 180 (not shown in the drawings), and the first switch 1331 and the second switch 1332 are respectively controlled to be opened and closed by the switch control device 180.
The switch control device 180 is arranged, the first switch 1331 and the second switch 1332 are controlled by the switch control device 180 respectively, so that an operator can control the state between the processor and the motor 210 to be tested more conveniently and rapidly by using the first switch 1331 and the second switch 1332, remote control can be realized, and the safety risk of the operator in the operation process is reduced.
Alternatively, as shown in fig. 1, the controller 120 and the motor 210 to be tested are respectively connected to the path switching device 130 in three phases, the current sensors 140 are respectively connected to the circuits of each phase between the path switching device 130 and the motor 210 to be tested, and the plurality of current sensors 140 are respectively connected to the end points of the current detection terminals 161 in a one-to-one correspondence manner.
When the controller 120 and the motor 210 to be tested are respectively connected with the three phases of the path switching device 130, the current inductors 140 are respectively arranged on the circuits of each phase, and the corresponding current inductors 140 are respectively connected with the end points of the current detection terminals 161 of the power analyzer 160, so that the respective detection of the circuits of each phase of the motor 210 to be tested is realized, and the accuracy and the comprehensiveness of the detection of the motor 210 to be tested are improved.
Alternatively, as shown in fig. 1, the phase terminals of the output terminal of the path switching device 130 and the input terminal of the controller 120 are respectively connected to the terminals of the voltage detection terminals 162 in a one-to-one correspondence.
When the controller 120 and the motor 210 to be tested are respectively connected with the path switching device 130 in three phases, the phase end points of the output end of the path switching device 130 and the input end of the controller 120 are respectively connected with the end point of the voltage detection end 162 of the power analyzer 160, so that the voltage of each phase circuit of the motor 210 to be tested is respectively detected, and the accuracy and the comprehensiveness of the detection of the motor to be tested are improved.
Optionally, the controller power supply 110 is a dc power supply.
The controller power supply 110 is set as a dc power supply, so that the power output from the controller 120 to the motor 210 to be tested is dc power to adapt to the motor 210 to be tested using dc power, and when the motor 210 to be tested uses ac power, an inverter is only required to be set at the output end of the dc power supply to convert the dc power into ac power. Therefore, when the controller power source 110 is set as a dc power source, the motor detection apparatus can be more conveniently adapted to the motor 210 to be detected.
The embodiment of the utility model provides an on the other hand provides a motor detection system, including the motor detection device of above-mentioned arbitrary one.
By adopting the motor detection device, the motor detection system can rapidly switch three states of connection, disconnection and short circuit between the controller 120 and the motor 210 to be detected, reduce the wiring frequency and improve the efficiency and safety of motor detection.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A motor detection device, comprising: the circuit comprises a controller power supply, a controller, a path switching device, a plurality of current inductors, an inductor power supply and a power analyzer, wherein the controller power supply, the controller and the input end of the path switching device are sequentially connected, the output end of the path switching device is used for being connected with a motor to be detected, the current inductors are respectively connected with the controller power supply and the path switching device and the motor to be detected, the current inductors are respectively connected with the inductor power supply, the power analyzer comprises a current detection end and a voltage detection end, the current inductors are respectively connected with the current detection end, the controller is connected with an equipotential point between the controller power supply and an equipotential point at the output end of the path switching device are respectively connected with the voltage detection end.
2. The motor testing apparatus of claim 1, wherein a circuit breaker is connected between said controller power source and said controller.
3. The motor testing apparatus of claim 2 wherein said current sensor connection is disposed between said controller and said circuit breaker.
4. The motor detecting device according to claim 1, wherein an input terminal and an output terminal of the path switching device are connected to form a main path, a short-circuiting line is provided on the main path to form a short-circuiting branch path, the main path is provided with a first switch, the short-circuiting branch path is provided with a second switch, and current passes through the first switch and the second switch in sequence.
5. The motor detection apparatus of claim 4, wherein the first switch and the second switch are both contactors.
6. The motor detection device according to claim 5, further comprising a switch control device, wherein the first switch and the second switch are respectively connected to the switch control device, and the first switch and the second switch are respectively controlled to be opened and closed by the switch control device.
7. The motor detection device according to claim 1, wherein the controller and the motor under test are respectively connected to the path switching device in three phases, the current sensors are respectively connected to respective phase circuits provided between the path switching device and the motor under test, and a plurality of the current sensors are respectively connected to end points of the current detection terminals in a one-to-one correspondence.
8. The motor detecting device according to claim 7, wherein each phase terminal of the output terminal of the path switching device and the input terminal of the controller are connected to the terminals of the voltage detecting terminals in a one-to-one correspondence, respectively.
9. The motor detection apparatus of claim 1 wherein said controller power supply is a dc power supply.
10. A motor detection system comprising a motor detection apparatus as claimed in any one of claims 1 to 9.
CN201921282721.0U 2019-08-07 2019-08-07 Motor detection device and motor detection system Active CN210803672U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921282721.0U CN210803672U (en) 2019-08-07 2019-08-07 Motor detection device and motor detection system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921282721.0U CN210803672U (en) 2019-08-07 2019-08-07 Motor detection device and motor detection system

Publications (1)

Publication Number Publication Date
CN210803672U true CN210803672U (en) 2020-06-19

Family

ID=71243700

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921282721.0U Active CN210803672U (en) 2019-08-07 2019-08-07 Motor detection device and motor detection system

Country Status (1)

Country Link
CN (1) CN210803672U (en)

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