CN201804090U - DC motor simulation detection fixture - Google Patents
DC motor simulation detection fixture Download PDFInfo
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- CN201804090U CN201804090U CN2009203191024U CN200920319102U CN201804090U CN 201804090 U CN201804090 U CN 201804090U CN 2009203191024 U CN2009203191024 U CN 2009203191024U CN 200920319102 U CN200920319102 U CN 200920319102U CN 201804090 U CN201804090 U CN 201804090U
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Abstract
The utility model discloses a DC motor simulation detection fixture, which adopts a simulation detection fixture comprising a PWM (Pulse-Width Modulation) pulse switching circuit to convert Vsp voltage signals are debugged and output by a main control board into a DC motor rotational speed value to display, so as to detect a DC fan drive circuit in the main control board under the premise that a material object of a DC motor is not used. The simulation detection fixture comprises an input interface, a power switching circuit, a DC bus voltage detection circuit, a simulation detection fixture power supply circuit, the PWM pulse switching circuit, a fixture CPU (Central Processing Unit) and a display circuit, wherein, the power switching circuit leads in DC bus voltage through the input interface and controls level signals; the DC bus voltage detection circuit is connected with the power switching circuit so as to detect the DC bus voltage; the simulation detection fixture power supply circuit is connected with the power switching circuit so as to transmit the level signals that are converted to 5V to the fixture CPU; the PWM pulse switching circuit leads in the Vsp voltage signals of the main control board of an air conditioner through the input interface, and then transmits the Vsp voltage signals to the fixture CPU; and the fixture CPU converts the Vsp voltage signals to an AD (Analog to Digital) value, and then transmits the AD value and the corresponding DC motor rotational speed value to the display circuit.
Description
Technical field
The utility model is a kind of direct current generator analog detection frock that is applied to transducer air conditioning, replaces the direct current generator material object by the analog detection frock specifically master control borad is detected, and belongs to air-conditioning and Refrigeration Engineering technical field.
Background technology
Along with the widespread use of family expenses or commerical frequency variable air conditioner, the dc brushless motor that is used to drive the off-premises station condenser fan becomes the parts that comparatively generally adopt.Based on the variable frequency control principle, the rotating speed of setting and control direct current generator according to refrigerating capacity load and environment temperature randomly is one of critical technical parameter.
The rotating speed of direct current generator is directly controlled by the off-premises station master control borad, and detecting the dc fan driving circuit is the main project of the online detection of master control borad.In the assembled on site production run of existing transducer air conditioning, adopt the direct current generator material object at large for the master control borad detection that includes the dc fan driving circuit, be about to master control borad and be connected with direct current generator with simulation air conditioner operation actual conditions.
The quantity of batch producing master control borad is bigger, dock, changing, removes dc fan on the streamline repeatedly between a plurality of load frocks, more easily causes dc fan itself to be damaged and has influence on the accuracy and the authenticity of detection data.
In addition, adopt the direct current generator material object to detect and not only can cause the raising that detects cost, and testing process is loaded down with trivial details, the detection efficiency that is unfavorable for improving master control borad integral body.
The utility model content
Direct current generator analog detection frock described in the utility model, its purpose is to address the above problem and adopts the analog detection frock that includes the pwm pulse change-over circuit, convert the Vsp voltage signal of master control borad debugging output to the dc motor speed value and show, thereby under the prerequisite of not using the direct current generator material object, realization is at the detection of dc fan driving circuit in the master control borad, testing process is direct, quick, the detection cost is lower, and accuracy is higher.
Another purpose of design is, replaces the direct current generator material object to detect frock, and it is lower to detect the frock manufacturing cost, and is difficult for being damaged in testing process, and is lower at the detection cost of master control borad, more be applicable to production line of batch.
For realizing above-mentioned purpose of design, described direct current generator analog detection frock mainly includes:
Input interface is used to connect the air conditioner master control borad that includes direct current motor drive circuit;
Power-switching circuit is from the DC bus-bar voltage and the control level signal of input interface introducing air conditioner master control borad;
The DC bus-bar voltage testing circuit connects power-switching circuit to detect DC bus-bar voltage;
Analog detection frock power circuit connects power-switching circuit and is delivered to frock CPU with the level signal that will be converted to 5V;
The pwm pulse change-over circuit is introduced the Vsp voltage signal of air conditioner master control borad and is delivered to frock CPU from input interface;
Frock CPU converts the AD value at the Vsp voltage signal, and the AD value is delivered to display circuit with corresponding dc motor speed value; And, display circuit.
As above-mentioned basic scheme, identical with detection direct current generator material object is that master control borad debugs and export the Vsp voltage signal according to the dc fan wind rating of setting by the PWM dutycycle.
Different with detection direct current generator material object is, can be by the pwm pulse change-over circuit in the analog detection frock with the stable level signal that converts to after the Vsp voltage signal dividing potential drop below the 5V, convert thereof into the AD value that can directly be converted into dc motor speed by frock CPU, judge based on observable display result whether direct current generator is up to standard.
Because above-mentioned analog detection frock is more simple in structure than the direct current generator, the connection between the circuit module is difficult for being damaged, and therefore can directly improve accuracy of detection and shorten test period, reduces effectively simultaneously and detects cost.
For further improving the test closed-loop control of described analog detection frock, can take following innovative approach:
Described direct current generator analog detection frock also includes a tacho-pulse feedback circuit that connects the Fg feedback signal terminal of described frock CPU and input interface.
The tacho-pulse feedback circuit is uploaded to air conditioner master control borad according to the pulse signal that the dc motor speed value corresponding with the AD value converts to through the Fg of input interface feedback signal terminal with frock CPU.
In sum, the advantage that has of the utility model direct current generator analog detection frock is:
1, adopts the Vsp voltage signal that the analog detection frock receives and the conversion process master control borad is debugged, can substitute and finish the testing of direct current generator material object, assurance is higher to the accuracy in detection of dc fan driving circuit in the master control borad, testing process is direct, quick, and various detection data are intuitively readable.
2, replace the direct current generator material object to detect frock, the frock cost is lower and help reducing testing cost.
3, detect frock and be difficult for being damaged, testing process is simple and practical, more is applicable to the production line of batch of air conditioner master control borad.
Description of drawings
Now in conjunction with the accompanying drawings the utility model is described further
Fig. 1 is the circuit module synoptic diagram of described analog detection frock;
Embodiment
Embodiment 1, as shown in Figure 1, is applicable to that the direct current generator analog detection frock of transducer air conditioning mainly includes:
Input interface is used to connect the air conditioner master control borad that includes direct current motor drive circuit, has DC bus-bar voltage DC310V end, GND earth terminal, 15V control level end, Vsp voltage signal receiving end and Fg feedback signal output terminal;
Power-switching circuit is from the DC bus-bar voltage and the control level signal of input interface introducing air conditioner master control borad;
The DC bus-bar voltage testing circuit connects power-switching circuit to detect DC bus-bar voltage, when bus voltage value exceeds the scope of DC310V ± 10V, stops detecting and the feedback alerting signal;
Analog detection frock power circuit connects power-switching circuit and is delivered to frock CPU with the level signal that will be converted to 5V;
The pwm pulse change-over circuit is introduced the Vsp voltage signal of air conditioner master control borad and is delivered to frock CPU from input interface;
Frock CPU converts the AD value at the Vsp voltage signal, and the AD value is delivered to display circuit with corresponding dc motor speed value;
Display circuit, in order to showing the Vsp voltage signal, AD value that converts to by frock CPU and the dc motor speed value corresponding with the AD value;
The tacho-pulse feedback circuit, the Fg feedback signal terminal of connection frock CPU and input interface, the pulse signal so that the frock CPU basis dc motor speed value corresponding with the AD value converted to is uploaded to the air conditioner master control borad through the Fg of input interface feedback signal terminal.
Based on the analog detection frock in the present embodiment, be for the testing process of the air conditioner master control borad that includes direct current motor drive circuit:
(1) connects the air conditioner master control borad and carry out power-up initializing, introduce DC bus-bar voltage and 15V control level signal from input interface;
Whether (2) detect the DC bus-bar voltage of importing is DC310V ± 10V,
If DC bus-bar voltage is then up to standard, carry out next step;
If not up to standard, then directly stop detecting and the feedback alerting signal;
(3) the air conditioner master control borad is regulated the PWM dutycycle according to the dc fan rated speed, with debugging and output Vsp voltage signal;
The pwm pulse change-over circuit is introduced the Vsp voltage signal and is delivered to frock CPU from input interface;
(4) frock CPU connects the AD value of Vsp voltage signal conversion and the dc motor speed value corresponding with the AD value Vsp magnitude of voltage and is delivered to display circuit in the lump;
(5) blade of setting the corresponding direct current generators of 12 pulses rotated for 1 week, and frock CPU converts the pulse signal of corresponding ratio quantity to according to the AD value, and was uploaded to the air conditioner master control borad by input interface;
(6) corresponding data that shows according to display circuit judges whether an air conditioner master control borad that connects and detect is up to standard.
Claims (2)
1. direct current generator analog detection frock is characterized in that: comprise following circuit module,
Input interface is used to connect the air conditioner master control borad that includes direct current motor drive circuit;
Power-switching circuit is from the DC bus-bar voltage and the control level signal of input interface introducing air conditioner master control borad;
The DC bus-bar voltage testing circuit connects power-switching circuit to detect DC bus-bar voltage;
Analog detection frock power circuit connects power-switching circuit and is delivered to frock CPU with the level signal that will be converted to 5V;
The pwm pulse change-over circuit is introduced the Vsp voltage signal of air conditioner master control borad and is delivered to frock CPU from input interface;
Frock CPU converts the AD value at the Vsp voltage signal, and the AD value is delivered to display circuit with corresponding dc motor speed value;
And, display circuit.
2. direct current generator analog detection frock according to claim 1 is characterized in that: also include the tacho-pulse feedback circuit of the Fg feedback signal terminal of a described frock CPU of connection and input interface,
The tacho-pulse feedback circuit according to the pulse signal that the dc motor speed value corresponding with the AD value converts to, is uploaded to air conditioner master control borad through the Fg of input interface feedback signal terminal with frock CPU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203191024U CN201804090U (en) | 2009-12-30 | 2009-12-30 | DC motor simulation detection fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203191024U CN201804090U (en) | 2009-12-30 | 2009-12-30 | DC motor simulation detection fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201804090U true CN201804090U (en) | 2011-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203191024U Expired - Fee Related CN201804090U (en) | 2009-12-30 | 2009-12-30 | DC motor simulation detection fixture |
Country Status (1)
| Country | Link |
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| CN (1) | CN201804090U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101769992A (en) * | 2010-02-26 | 2010-07-07 | 上海新时达电气股份有限公司 | Motor simulation system |
| CN102736029A (en) * | 2012-06-04 | 2012-10-17 | 四川长虹电器股份有限公司 | Debugging tooling and debugging method for direct-current air conditioner motors |
| CN102116833B (en) * | 2009-12-30 | 2013-01-09 | 海信（山东）空调有限公司 | Simulation test tool for direct current motor and method thereof |
| CN104897979A (en) * | 2014-03-05 | 2015-09-09 | 洛克威尔自动控制技术股份有限公司 | Systems and methods for testing motor drives |
| CN111912085A (en) * | 2020-05-22 | 2020-11-10 | 海信（山东）空调有限公司 | Drive circuit and air conditioner |
| CN114614912A (en) * | 2022-03-04 | 2022-06-10 | 卧龙电气驱动集团股份有限公司 | Motor information identification method, upper computer, system, equipment and medium |
-
2009
- 2009-12-30 CN CN2009203191024U patent/CN201804090U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116833B (en) * | 2009-12-30 | 2013-01-09 | 海信（山东）空调有限公司 | Simulation test tool for direct current motor and method thereof |
| CN101769992A (en) * | 2010-02-26 | 2010-07-07 | 上海新时达电气股份有限公司 | Motor simulation system |
| CN101769992B (en) * | 2010-02-26 | 2013-05-15 | 上海新时达电气股份有限公司 | Motor simulation system |
| CN102736029A (en) * | 2012-06-04 | 2012-10-17 | 四川长虹电器股份有限公司 | Debugging tooling and debugging method for direct-current air conditioner motors |
| CN104897979A (en) * | 2014-03-05 | 2015-09-09 | 洛克威尔自动控制技术股份有限公司 | Systems and methods for testing motor drives |
| CN104897979B (en) * | 2014-03-05 | 2017-12-12 | 罗克韦尔自动化技术公司 | System and method for test motor driving |
| CN111912085A (en) * | 2020-05-22 | 2020-11-10 | 海信（山东）空调有限公司 | Drive circuit and air conditioner |
| CN111912085B (en) * | 2020-05-22 | 2023-10-27 | 海信空调有限公司 | Driving circuit and air conditioner |
| CN114614912A (en) * | 2022-03-04 | 2022-06-10 | 卧龙电气驱动集团股份有限公司 | Motor information identification method, upper computer, system, equipment and medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110420 Termination date: 20151230 |
|
| EXPY | Termination of patent right or utility model |