CN207008023U - A kind of motor status detection means - Google Patents

A kind of motor status detection means Download PDF

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Publication number
CN207008023U
CN207008023U CN201720148942.3U CN201720148942U CN207008023U CN 207008023 U CN207008023 U CN 207008023U CN 201720148942 U CN201720148942 U CN 201720148942U CN 207008023 U CN207008023 U CN 207008023U
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detection
circuit
detection circuit
electrically connected
module
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刘亚
徐仲春
刘帅
肖志勇
崔桐
刘斐
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Shandong Institute for Product Quality Inspection
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Shandong Institute for Product Quality Inspection
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Abstract

本实用新型涉及一种电机状态检测装置,包括中控模块,中控模块电连接有电流检测模块,电压检测模块,故障检测模块、显示模块和按键模块,电流检测模块包括温度传感器,电流检测传感器,选通电路、第一检测电路和第二检测电路,电流检测传感器与所述第一检测电路和第二检测电路电连接,温度传感器与选通电路的输入端电连接,选通电路输出端分别电连接第一检测电路和第二检测电路。本实用新型能够根据环境温度,对检测电路进行选择,调整过流检测的基准,在电机因温度升高或降低时,过电流的标准不一致,避免了电机因温度变化过流运行而造成损坏,以及电机正常运行时,因过流报警而强制停机。

The utility model relates to a motor state detection device, comprising a central control module, the central control module is electrically connected with a current detection module, a voltage detection module, a fault detection module, a display module and a button module, the current detection module includes a temperature sensor, a current detection sensor , a gating circuit, a first detection circuit and a second detection circuit, the current detection sensor is electrically connected to the first detection circuit and the second detection circuit, the temperature sensor is electrically connected to the input end of the gating circuit, and the output end of the gating circuit The first detection circuit and the second detection circuit are respectively electrically connected. The utility model can select the detection circuit according to the ambient temperature and adjust the benchmark of overcurrent detection. When the temperature of the motor rises or falls, the standard of overcurrent is inconsistent, which avoids the damage caused by the overcurrent operation of the motor due to temperature changes. And when the motor is running normally, it will be forced to stop due to over-current alarm.

Description

一种电机状态检测装置A motor state detection device

技术领域technical field

本实用新型涉及电气检测技术领域,尤其涉及一种电机状态检测装置。The utility model relates to the technical field of electrical detection, in particular to a motor state detection device.

背景技术Background technique

电机状态检测能够反映电机在运行中的实时状况,能够及时发现故障问题,并采取相应的措施,避免电机因电力系统故障受到损害,减轻电机因自身故障造成的损害。Motor status detection can reflect the real-time status of the motor during operation, and can detect faults in time, and take corresponding measures to avoid damage to the motor due to power system faults and reduce damage caused by the motor itself.

现有技术中的一些电流检测装置,能够测量电机的实时电流,在过电流现象发生时,能够及时发出警示信息并采取相应的保护措施,避免电机部件受到损害,但是,电机的工作场所不同和季节等因素会造成电机的工作环境温度较高,环境温度对电机的电流会造成一定的影响,使电机的额定工作电流升高或降低,但是,现有检测装置中,对电机的检测一般不考虑环境因素,造成某些情况下,尤其是高温状况下,检测装置不能根据环境变化调整检测标准,造成了电机在过电流状态下持续运行造成电机损坏,或电机运行正常,但是检测结果显示过电流,强制停机影响电机的正常运行。Some current detection devices in the prior art can measure the real-time current of the motor. When an over-current phenomenon occurs, it can send a warning message in time and take corresponding protection measures to avoid damage to the motor components. However, the working place of the motor is different from the Factors such as seasons will cause the working environment temperature of the motor to be high, and the ambient temperature will have a certain impact on the current of the motor, which will increase or decrease the rated operating current of the motor. However, in the existing detection devices, the detection of the motor is generally not Considering environmental factors, in some cases, especially under high temperature conditions, the detection device cannot adjust the detection standard according to environmental changes, causing the motor to continue to run in an over-current state and causing damage to the motor, or the motor is running normally, but the detection results show too much. Current, forced shutdown affects the normal operation of the motor.

实用新型内容Utility model content

本实用新型所要解决的技术问题是提供一种根据运行环境的温度因素调整过流检测标准的电机状态检测装置。The technical problem to be solved by the utility model is to provide a motor state detection device that adjusts the overcurrent detection standard according to the temperature factor of the operating environment.

为解决上述技术问题,本实用新型的技术方案是:一种电机状态检测装置,包括中控模块,所述中控模块电连接有电流检测模块,电压检测模块,故障检测模块、显示模块和按键模块,所述电流检测模块包括温度传感器,电流检测传感器,选通电路、第一检测电路和第二检测电路,所述电流检测传感器与所述第一检测电路和第二检测电路电连接,所述温度传感器与所述选通电路的输入端电连接,所述选通电路输出端分别电连接所述第一检测电路和第二检测电路。In order to solve the above technical problems, the technical solution of the present invention is: a motor state detection device, including a central control module, the central control module is electrically connected with a current detection module, a voltage detection module, a fault detection module, a display module and buttons Module, the current detection module includes a temperature sensor, a current detection sensor, a gating circuit, a first detection circuit and a second detection circuit, the current detection sensor is electrically connected to the first detection circuit and the second detection circuit, the The temperature sensor is electrically connected to the input end of the gating circuit, and the output end of the gating circuit is electrically connected to the first detection circuit and the second detection circuit respectively.

作为优选的技术方案,所述电流检测传感器是霍尔电流检测传感器。As a preferred technical solution, the current detection sensor is a Hall current detection sensor.

作为优选的技术方案,所述选通电路包括第一晶体管和第二晶体管,所述第一晶体管的基极与所述温度传感器的常闭触点串联,所述第一晶体管的集电极电连接至所述第一检测电路的选通端;所述第二晶体管的基极与所述温度传感器的常开触点串联,所述第二晶体管的集电极电连接至所述第二检测电路的选通端。As a preferred technical solution, the gating circuit includes a first transistor and a second transistor, the base of the first transistor is connected in series with the normally closed contact of the temperature sensor, and the collector of the first transistor is electrically connected to To the gate terminal of the first detection circuit; the base of the second transistor is connected in series with the normally open contact of the temperature sensor, and the collector of the second transistor is electrically connected to the second detection circuit strobe terminal.

作为优选的技术方案,所述第一检测电路和第二检测电路均包括一个电压比较器,所述电流检测传感器电连接至所述电压比较器的同相输入端,所述电压比较器的反相输入端连接有两个调整电阻,所述电压比较器的输出端与所述中控模块电连接,所述电压比较器的选通端与所述选通电路电连接。As a preferred technical solution, both the first detection circuit and the second detection circuit include a voltage comparator, the current detection sensor is electrically connected to the non-inverting input terminal of the voltage comparator, and the inversion of the voltage comparator Two adjustment resistors are connected to the input end, the output end of the voltage comparator is electrically connected to the central control module, and the gate end of the voltage comparator is electrically connected to the gate circuit.

作为优选的技术方案,所述电压比较器是电压比较器芯片LM311。As a preferred technical solution, the voltage comparator is a voltage comparator chip LM311.

由于采用了上述技术方案,本实用新型的有益效果是:本实用新型设置了两个检测电路,两个检测电路的检测标准不同,根据温度传感器对温度检测结果选择适合的检测电路,本实用新型能够根据环境温度,对检测电路进行选择,调整过流检测的基准,在电机因温度升高或降低时,过电流的标准不一致,避免了电机因温度变化过流运行而造成损坏,以及电机正常运行时,因过流报警而强制停机。Due to the adoption of the above technical scheme, the beneficial effects of the utility model are: the utility model is provided with two detection circuits, and the detection standards of the two detection circuits are different, and a suitable detection circuit is selected according to the temperature detection results of the temperature sensor. According to the ambient temperature, the detection circuit can be selected and the benchmark of overcurrent detection can be adjusted. When the temperature of the motor rises or falls, the standard of overcurrent is inconsistent, which avoids the damage caused by the overcurrent operation of the motor due to temperature changes, and the normal operation of the motor. During operation, it is forced to stop due to overcurrent alarm.

附图说明Description of drawings

为了更清楚地说明本实用新型实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本实用新型的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动性的前提下,还可以根据这些附图获得其他的附图。In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without any creative effort.

图1是本实用新型实施例的电路框图;Fig. 1 is the circuit block diagram of the utility model embodiment;

图2是本实用新型实施例电流检测模块的电路框图;Fig. 2 is the circuit block diagram of the current detection module of the utility model embodiment;

图3是图2的电路原理图。FIG. 3 is a schematic circuit diagram of FIG. 2 .

具体实施方式detailed description

如图1至图3共同所示,一种电机状态检测装置,包括中控模块,所述中控模块电连接有电流检测模块,电压检测模块,故障检测模块、显示模块和按键模块,电流检测模块包括温度传感器,电流检测传感器,选通电路、第一检测电路和第二检测电路,电流检测传感器与第一检测电路和第二检测电路电连接,温度传感器与选通电路的输入端电连接,选通电路输出端分别电连接所述第一检测电路和第二检测电路。As shown in Figures 1 to 3, a motor state detection device includes a central control module, the central control module is electrically connected to a current detection module, a voltage detection module, a fault detection module, a display module and a button module, and the current detection The module includes a temperature sensor, a current detection sensor, a gating circuit, a first detection circuit and a second detection circuit, the current detection sensor is electrically connected to the first detection circuit and the second detection circuit, and the temperature sensor is electrically connected to the input end of the gating circuit , the output terminals of the gating circuit are electrically connected to the first detection circuit and the second detection circuit respectively.

优选的,电流检测传感器是霍尔电流检测传感器。Preferably, the current detection sensor is a Hall current detection sensor.

选通电路包括第一晶体管Q1和第二晶体管Q2,第一晶体管Q1的基极与温度传感器的常闭触点J1-1串联,第一晶体管Q1的集电极电连接至第一检测电路的选通端;第二晶体管Q2的基极与温度传感器的常开触点J1-2串联,第二晶体管Q2的集电极电连接至第二检测电路的选通端。The gate circuit includes a first transistor Q1 and a second transistor Q2, the base of the first transistor Q1 is connected in series with the normally closed contact J1-1 of the temperature sensor, and the collector of the first transistor Q1 is electrically connected to the selector of the first detection circuit. On terminal: the base of the second transistor Q2 is connected in series with the normally open contact J1-2 of the temperature sensor, and the collector of the second transistor Q2 is electrically connected to the gate terminal of the second detection circuit.

第一检测电路包括,电流检测传感器电连接至电压比较器IC1的同相输入端引脚2,电压比较器IC1的反相输入端引脚3连接有两个调整电阻R3、R4,改变调整电阻R3、R4的阻值可以调整基准电压的大小,电压比较器IC1的输出端引脚7与中控模块的第一过流检测端GL1电连接,电压比较器IC1的选通端引脚6与选通电路中第一晶体管Q1的集电极电连接。The first detection circuit includes that the current detection sensor is electrically connected to the non-inverting input pin 2 of the voltage comparator IC1, and the inverting input pin 3 of the voltage comparator IC1 is connected to two adjustment resistors R3 and R4, and the adjustment resistor R3 is changed. The resistance value of R4 can adjust the size of the reference voltage. The output pin 7 of the voltage comparator IC1 is electrically connected to the first overcurrent detection terminal GL1 of the central control module, and the gate pin 6 of the voltage comparator IC1 is connected to the selection terminal. The collector of the first transistor Q1 in the pass circuit is electrically connected.

第二检测电路包括电压比较器IC2,电流检测传感器电连接至电压比较器IC2的同相输入端引脚2,电压比较器IC2的反相输入端引脚3连接有两个调整电阻R8、R9,改变调整电阻R8、R9的阻值可以调整基准电压的大小,电压比较器IC2的输出端引脚7与中控模块的第二过流检测端GL2电连接,电压比较器IC2的选通端引脚6与选通电路中第一晶体管Q2的集电极电连接。The second detection circuit includes a voltage comparator IC2, the current detection sensor is electrically connected to the non-inverting input pin 2 of the voltage comparator IC2, and the inverting input pin 3 of the voltage comparator IC2 is connected to two adjustment resistors R8, R9, The size of the reference voltage can be adjusted by changing the resistance values of the adjustment resistors R8 and R9. The output terminal pin 7 of the voltage comparator IC2 is electrically connected with the second overcurrent detection terminal GL2 of the central control module, and the gate terminal of the voltage comparator IC2 is connected to Pin 6 is electrically connected to the collector of the first transistor Q2 in the gate circuit.

优选的,电压比较器IC1和电压比较器IC2是电压比较器芯片LM311。Preferably, the voltage comparator IC1 and the voltage comparator IC2 are voltage comparator chips LM311.

当温度传感器检测到温度低于设定值时,晶体管Q1导通,第一检测电路工作,对电流进行检测;当温度传感器检测到温度高于设定值时,常开触点J1-2闭合,常闭触点J1-1打开,晶体管Q2导通,第二检测电路工作,对电流进行检测。When the temperature sensor detects that the temperature is lower than the set value, the transistor Q1 is turned on, and the first detection circuit works to detect the current; when the temperature sensor detects that the temperature is higher than the set value, the normally open contact J1-2 is closed , the normally closed contact J1-1 is opened, the transistor Q2 is turned on, and the second detection circuit works to detect the current.

以上显示和描述了本实用新型的基本原理、主要特征及本实用新型的优点。本行业的技术人员应该了解,本实用新型不受上述实施例的限制,上述实施例和说明书中描述的只是说明本实用新型的原理,在不脱离本实用新型精神和范围的前提下,本实用新型还会有各种变化和改进,这些变化和改进都落入要求保护的本实用新型范围内。本实用新型要求保护范围由所附的权利要求书及其等效物界定。The basic principles, main features and advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model The new model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.

Claims (5)

  1. A kind of 1. motor status detection means, it is characterised in that:Including middle control module, the middle control module is electrically connected with electric current inspection Survey module, voltage detection module, fault detection module, display module and key-press module, the current detection module include temperature Sensor, current detection sensor, gating circuit, the first detection circuit and the second detection circuit, the current detection sensor Electrically connected with the described first detection circuit and the second detection circuit, the input electricity of the temperature sensor and the gating circuit Connection, the gating circuit output end are electrically connected the first detection circuit and the second detection circuit.
  2. A kind of 2. motor status detection means as claimed in claim 1, it is characterised in that:The current detection sensor is suddenly That current detection sensor.
  3. A kind of 3. motor status detection means as claimed in claim 1, it is characterised in that:It is brilliant that the gating circuit includes first Body pipe and second transistor, the base stage of the first transistor are connected with the normally-closed contact of the temperature sensor, and described first The colelctor electrode of transistor is electrically connected to the gating end of the first detection circuit;The base stage of the second transistor and the temperature The normally opened contact series connection of sensor, the colelctor electrode of the second transistor are electrically connected to the gating end of the second detection circuit.
  4. A kind of 4. motor status detection means as claimed in claim 1, it is characterised in that:The first detection circuit and second Detection circuit includes a voltage comparator, and the current detection sensor is electrically connected to the same mutually defeated of the voltage comparator Enter end, the inverting input of the voltage comparator is connected with two adjustment resistance, the output end of the voltage comparator and institute Middle control module electrical connection is stated, the gating end of the voltage comparator electrically connects with the gating circuit.
  5. A kind of 5. motor status detection means as claimed in claim 4, it is characterised in that:The voltage comparator is voltage ratio Compared with device chip LM311.
CN201720148942.3U 2017-02-17 2017-02-17 A kind of motor status detection means Expired - Fee Related CN207008023U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110736927A (en) * 2019-10-15 2020-01-31 博能传动(苏州)有限公司 permanent magnet synchronous motor initial magnetic pole position identification and broken line detection method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110736927A (en) * 2019-10-15 2020-01-31 博能传动(苏州)有限公司 permanent magnet synchronous motor initial magnetic pole position identification and broken line detection method

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