阅读说明：本技术 一种便捷式变频压缩机调速控制装置及控制方法 (Portable variable-frequency compressor speed regulation control device and control method ) 是由 黄新友 李倩 张恩志 赵勇 于 2020-06-05 设计创作，主要内容包括：本公开提出了一种便捷式变频压缩机调速控制装置及控制方法,包括外壳及外壳内的电路单元,所述电路单元包括主控制器,与主控制器电连接的信号输入电路、信号输出电路以及按键中断模块,以及连接信号输出电路的脉冲发生器,脉冲发生器与压缩机的变频器连接为变频器提供控制信号；信号输入电路用于接收配置数据；按键中断模块用于设定输出信号与配置数据的对应关系；主控制器对接收到的配置数据,控制信号输出电路输出相应的控制指令,脉冲发生器用于根据控制指令发出设定规律和频率的脉冲信号。本公开装置通过主控制器控制实现不同变化规律和频率的输出信号输出,可以提高本装置的通用性,适用于多种型号的压缩机,降低了压缩机的检测或实验成本。(The circuit unit comprises a main controller, a signal input circuit, a signal output circuit, a key interruption module and a pulse generator, wherein the signal input circuit, the signal output circuit and the key interruption module are electrically connected with the main controller; the signal input circuit is used for receiving configuration data; the key interruption module is used for setting the corresponding relation between the output signal and the configuration data; the main controller outputs corresponding control instructions to the received configuration data through the control signal output circuit, and the pulse generator is used for sending out pulse signals with set rules and frequency according to the control instructions. The device disclosed by the invention realizes output of output signals with different change rules and frequencies through the control of the main controller, can improve the universality of the device, is suitable for compressors of various models, and reduces the detection or experiment cost of the compressor.)

1. The utility model provides a portable inverter compressor speed governing controlling means, includes the shell and sets up the circuit unit in the shell, characterized by: the circuit unit comprises a main controller, a signal input circuit, a signal output circuit, a key interruption module and a pulse generator, wherein the signal input circuit, the signal output circuit and the key interruption module are electrically connected with the main controller; the signal input circuit is used for receiving configuration data; the key interruption module is used for setting the corresponding relation between the output signal and the configuration data; the main controller outputs corresponding control instructions to the received configuration data through the control signal output circuit, and the pulse generator is used for sending out pulse signals with set rules and frequency according to the control instructions.

2. The speed regulation control device of the portable frequency conversion compressor as claimed in claim 1, characterized in that: the signal input circuit is a key circuit, the key circuit comprises a plurality of keys which are respectively used for configuring an output signal working mode and output frequency, capacitors are connected in parallel at two ends of the keys, one end of each key is grounded, and the other end of each key is connected with a port of the main controller.

3. The speed regulation control device of the portable frequency conversion compressor as claimed in claim 1, characterized in that: the signal output circuit comprises a plurality of triode switch circuits, the triode switch circuits are respectively connected with the output port of the main controller, and the output ends of the triode switch circuits are connected with the pulse generator.

4. The speed regulation control device of the portable frequency conversion compressor as claimed in claim 1, characterized in that: the intelligent control system also comprises a plurality of indicator lamps, wherein the indicator lamps are electrically connected with the main controller, and the lighting states of the indicator lamps are used for indicating the current control mode;

or the display screen is electrically connected with the main controller and is used for displaying the set frequency.

5. The speed regulation control device of the portable frequency conversion compressor as claimed in claim 1, characterized in that: the shell comprises a lower shell and an upper shell, and the lower shell and the upper shell are detachably connected.

6. The speed regulation control device of the portable variable frequency compressor as claimed in claim 5, wherein: the detachable connection is a buckle connection mode, a clamping groove is formed in the side wall of the upper shell, a buckle is arranged on the outer edge of the side wall of the lower shell, and the clamping groove corresponds to the buckle in the arrangement position.

7. The speed regulation control device of the portable variable frequency compressor as claimed in claim 5, wherein: the buckle both sides are provided with the fluting, the fluting is used for providing the deformation space of buckle.

8. The speed regulation control device of the portable variable frequency compressor as claimed in claim 5, wherein: supporting columns with the same height are arranged in the lower shell or the upper shell, the end faces of the supporting columns are in the same plane, and the circuit board is fixedly arranged on the end faces of the supporting columns.

9. A control method of a speed regulation control device of a portable variable frequency compressor is characterized by comprising the following steps:

constructing a pattern database, wherein the pattern database comprises a corresponding relation between an output signal change rule and a pattern;

acquiring configuration data of an output signal; the configuration data includes a signal output frequency and a pattern;

and outputting a signal which accords with the signal change rule and the set frequency to a pulse signal generator and outputting the signal to the variable frequency compressor according to the signal change rule corresponding to the configuration data reading mode of the main controller.

10. The control method of the speed regulation control device of the portable frequency conversion compressor as claimed in claim 9, characterized in that: setting the signal change rule in the database comprises one or more of the following:

and (3) outputting the timing switching frequency: timing on and off of a signal of constant frequency;

frequency division output: carrying out frequency division output on the input signal according to a set frequency division multiple;

and (3) swinging frequency output: the output signal is changed from the maximum frequency to the minimum frequency within the frequency change time t according to the set frequency range and frequency change time t, and then is changed from the maximum frequency to the minimum frequency within the frequency change time t, and the frequency is alternately changed and output;

first-step frequency output state: changing the frequency from the minimum frequency to the maximum frequency according to the equal time interval and the equal stepping frequency;

second stepped frequency output state: setting different time intervals and different frequency change step sizes, and changing the frequency from the minimum frequency to the maximum frequency according to the set time intervals and the set step frequency.

Technical Field

The disclosure relates to the technical field of compressors, in particular to a speed regulation control device and a speed regulation control method for a portable variable frequency compressor.

Background

The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.

The frequency conversion compressor is a compressor with constant relative rotating speed, and the rotating speed of the frequency conversion compressor is continuously adjusted within a certain range through a control mode or means, so that the output energy of the compressor can be continuously changed. With the development of the frequency conversion technology, the frequency conversion compressor is popularized more and more at the present stage, and the research on the frequency conversion compressor is deeper. In order to ensure the performance and quality of the inverter compressor, tests related to the performance, reliability, noise and the like of the inverter compressor are required to be more deep, comprehensive and scientific, so that the test method and the test device have higher and higher requirements for improvement of the test method and the test device, and the test efficiency and the operation simplicity of the test device are also higher requirements.

Compared with the traditional compressor, the working state adjustment of the inverter compressor is complex, and the inventor finds that the test of the existing compressor has the following problems: 1. the degree of automation is poor, and intelligent degree is low, can realize controlling the start-stop of compressor through relevant device, but can not automatic order the compressor with fixed law operation, can not test the frequency conversion working property of compressor. 2. The existing testing device has a single functional structure and can only realize one-to-one control. 3. The existing device is simple and crude in design, parts are exposed, electrical safety cannot be guaranteed, falling protection cannot be achieved, and the device is easy to break down and damage due to static problems such as touch and the like.

Disclosure of Invention

The speed regulation control device regulates the speed of the compressor, can control the inverter compressor to operate at a specified rotating speed or the compressor to operate at a rotating speed which is changed according to a specific rule within a specified time, and can meet the control requirements in the development and test processes of the inverter compressor.

In order to achieve the purpose, the following technical scheme is adopted in the disclosure:

one or more embodiments provide a portable variable-frequency compressor speed regulation control device, which comprises a shell and a circuit unit arranged in the shell, wherein the circuit unit comprises a circuit board, a main controller arranged on the circuit board, a signal input circuit, a signal output circuit, a key interruption module and a pulse generator connected with the signal output circuit, wherein the signal input circuit, the signal output circuit and the key interruption module are respectively and electrically connected with the main controller; the signal input circuit is used for receiving configuration data for configuring output signal modes and rules; the key interruption module is used for setting the setting rule and frequency of the output signal and the corresponding relation with the configuration data; the main controller outputs corresponding control instructions to the received configuration data through the control signal output circuit, and the pulse generator is used for sending out pulse signals with set rules and frequency according to the control instructions.

One or more embodiments provide a control method of a speed regulation control device of a portable frequency conversion compressor, which comprises the following steps:

constructing a pattern database, wherein the pattern database comprises a corresponding relation between an output signal change rule and a pattern;

acquiring configuration data of an output signal; the configuration data includes a signal output frequency and a pattern;

and outputting a signal which accords with the signal change rule and the set frequency to a pulse signal generator and outputting the signal to the variable frequency compressor according to the signal change rule corresponding to the configuration data reading mode of the main controller.

Compared with the prior art, the beneficial effect of this disclosure is:

the device disclosed by the invention achieves the purpose of controlling the running rotating speed of the compressor by giving corresponding input signals to the frequency conversion board. Output signal output of different change laws and frequencies is realized through main control unit control, the commonality of this device can be improved, is applicable to the compressor of multiple model, has reduced the detection or the experiment cost of compressor.

The control method disclosed by the invention realizes that the compressor automatically runs in a fixed rule according to a mode or use frequency set by a user, and realizes the test of the variable frequency working performance of the variable frequency compressor. The inverter compressor is controlled to operate at a specified rotating speed or the compressor is controlled to operate at a rotating speed which is changed at a specific rule within a specified time, so that the control requirements in the development and test processes of the inverter compressor are met.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure and not to limit the disclosure.

FIG. 1 is a schematic diagram of the physical structure of the apparatus in embodiment 1 of the disclosure;

FIG. 2 is a schematic diagram of the structure of the upper shell of the device in embodiment 1 of the disclosure;

FIG. 3 is a schematic view of the lower case structure of the device of example 1 of the present disclosure;

fig. 4 is a block diagram of the apparatus structure of embodiment 1 of the present disclosure;

FIG. 5 is a wobble frequency output waveform diagram of embodiment 2 of the disclosure;

fig. 6 is a first step frequency output waveform diagram of embodiment 2 of the present disclosure;

fig. 7 is a second stepped frequency output waveform diagram of embodiment 2 of the present disclosure;

wherein: 1. the support structure comprises a lower shell, 11, a buckle, 12, a first support column, 13, support ribs, 14, a groove, 15, a first groove, 16 and a fixing hole;

2. the upper shell 21, the clamping groove 22, the second supporting column 23, the indicating lamp hole 24, the nixie tube hole 25, the key hole 26, the reinforcing rib 27, the second groove 28 and the third groove.

The specific implementation mode is as follows:

the present disclosure is further described with reference to the following drawings and examples.

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise. It should be noted that, in the case of no conflict, the embodiments and features in the embodiments in the present disclosure may be combined with each other. The embodiments will be described in detail below with reference to the accompanying drawings.

In the technical scheme disclosed in one or more embodiments, as shown in fig. 1-4, the speed regulation control device for the portable variable frequency compressor comprises a shell and a circuit unit arranged in the shell;

the circuit unit comprises a circuit board, a main controller arranged on the circuit board, a signal input circuit, a signal output circuit, a key interruption module and a pulse generator connected with the signal output circuit, wherein the signal input circuit, the signal output circuit and the key interruption module are respectively and electrically connected with the main controller; the signal input circuit is used for receiving configuration data for configuring output signal modes and rules; the key interruption module is used for setting the setting rule and frequency of the output signal and the corresponding relation with the configuration data; the main controller outputs corresponding control instructions to the received configuration data through the control signal output circuit, and the pulse generator is used for sending out pulse signals with set rules and frequency according to the control instructions.

The device disclosed by the invention achieves the purpose of controlling the running rotating speed of the compressor by giving corresponding input signals to the frequency conversion board. Output signal output of different change laws and frequencies is realized through main control unit control, the commonality of this device can be improved, is applicable to the compressor of multiple model, has reduced the detection or the experiment cost of compressor.

The signal input circuit and the key interruption module can adopt the same key circuit, and the signal input circuit is used for receiving the setting information of the user and outputting a signal with a corresponding rule according to the configuration data input by the user; the key interruption module is used for providing a corresponding relation between the configuration data and the corresponding regular signals or modes, and can be set as a key combination, for example, the key 1 corresponds to a mode one, and the key 1 corresponds to a mode two times, and the like. The key circuit comprises a plurality of keys which are respectively used for configuring the working mode and the output frequency of an output signal, capacitors are connected in parallel at two ends of each key, one end of each key is grounded, and the other end of each key is connected with a port of the main controller. When the key is pressed, a low level is provided for the port of the main controller. The main controller of the embodiment can select a single chip microcomputer.

The signal input circuit is used for detecting an input key and adjusting the working mode and the output frequency, the input signal needs to be subjected to hardware anti-shaking, the hardware anti-shaking is realized through a parallel capacitor, when the key is pressed, a related circuit becomes a low level, and the single chip microcomputer detects the signal and judges that the key is pressed.

Optionally, the signal of the output circuit may be a square wave signal, and switching between high and low levels is realized according to different initial values of the timer set by the single chip microcomputer, so as to realize the square wave signal. And changing the change rule, wherein the change rule is set by the software, and then reading the parameters of the change rule through a key.

Optionally, the output circuit is a plurality of triode switch circuits, the triode switch circuits are respectively connected with the output port of the main controller, and the output end of the triode switch circuit is connected with the pulse generator.

This embodiment is provided with 3 frequency input ports, is controlled by 3 IO mouths of singlechip respectively, then carries out the output of high-low level through triode switch circuit, and the frequency of 3 frequency signal ports can be the same, can inform the work of three converter of drive. The arrangement of a plurality of output signal outputs enables one-to-many control.

As a further improvement, the intelligent control system further comprises a plurality of indicator lamps, the indicator lamps are electrically connected with the main controller, and the lighting states of the indicator lamps are used for indicating the current control mode.

In some embodiments, the system further comprises a display screen electrically connected to the main controller, the display screen being configured to display the set frequency.

Optionally, the circuit unit is configured as a PCB board and disposed in a cavity in the housing.

In some embodiments, optionally, the housing includes a lower case 1 and an upper case 2, and the lower case 1 and the upper case 2 are detachably coupled. The detachable connection can be opened in real time, facilitating the inspection of circuit faults.

As a mode capable of realizing detachable connection, the detachable connection is a buckle connection mode. The buckle connection mode is more convenient to disassemble and assemble. Optionally, a clamping groove 21 is formed in the side wall of the upper shell 2, a buckle 11 is arranged on the outer edge of the side wall of the lower shell 1, and the clamping groove 21 corresponds to the buckle 11 in arrangement position.

Optionally, slots 14 are provided on both sides of the buckle 11, and the slots 14 are used for providing a deformation space for the buckle 11. The buckle 11 has enough elastic deformation space, so that the buckle connection and the buckle disassembly are easier to realize, and meanwhile, the surface of the surface shell deforms, and the damage is reduced.

In order to achieve stable arrangement of the circuit boards of the circuit unit, alternatively, equal-height supporting columns 12 may be arranged in the lower case 1 or the upper case 2, and end surfaces of the supporting columns 12 are in the same plane. The end faces of the support posts 12 are used to position the circuit board, and the coplanar end faces can eliminate stress on the circuit board, which can cause damage to the circuit board.

Alternatively, the first support column 12 may be provided on the lower case 1 or the second support column 22 may be provided on the upper case 2 at the same time, the first support column 12 and the second support column 22 are arranged opposite to each other, and the circuit board is fixed by pressing.

Optionally, a support column 12 may be disposed on one of the lower casing 1 or the upper casing 2, a fixing hole 16 is disposed on an end surface of the support column, and the circuit board is fixedly disposed through the fixing hole 16.

As a further improvement, in order to prevent the circuit board from shaking in the housing, a support rib 13 may be provided on the lower case 1, and the support rib 13 may include a stepped surface for supporting the bottom surface of the circuit board.

Optionally, the support rib can further comprise strip-shaped support ribs arranged around the shell and used for clamping the circuit board to avoid left and right shaking. Alternatively, the upper shell may be further provided with a reinforcing rib 26, which may serve as a structural reinforcement.

Further, an indicator lamp hole 23, a nixie tube hole 24 and a key hole 25 are arranged on the upper shell, so that output of display signals and input of set data are achieved respectively.

Optionally, the output module on the circuit board is provided with a connector matched with the compressor, the input module on the circuit board is provided with a connector connected with the pulse generator, and the shell is provided with a slot for extending the connector.

In this embodiment, the lower case 1 is provided with a first slot 15, and the upper case 2 is provided with a second slot 27 and a third slot 28. Since the connector is disposed above the circuit board, the height of the first slot 15 can be set to be equal to the bottom surface of the circuit board, and the shapes and widths of the second slot 27 and the third slot 28 are matched with the external dimensions of the connector.

This embodiment is simple and crude to current device design, and the part exposes can not guarantee electric safety, can not play the problem of falling the protection, has set up shell structure according to circuit unit's structural feature, and the shell has advantages such as design compactness, simple structure, trompil position accuracy, the dismouting of being convenient for. The internal hardware can be reliably protected and also display and operational reserve holes can be provided.