CN210839387U - Control device of inverter and inverter - Google Patents
Control device of inverter and inverter Download PDFInfo
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- CN210839387U CN210839387U CN201922056089.4U CN201922056089U CN210839387U CN 210839387 U CN210839387 U CN 210839387U CN 201922056089 U CN201922056089 U CN 201922056089U CN 210839387 U CN210839387 U CN 210839387U
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Abstract
The utility model is suitable for an inverter technical field provides a controlling means and an inverter of dc-to-ac converter, controlling means includes: a signal input module for forming an input signal; the signal detection module is used for receiving the input signal and forming a detection signal according to the input signal; the control module is used for receiving the detection signal and forming a charging switch signal or a discharging switch signal according to the detection signal; the charging switch module is used for receiving the charging switch signal and controlling the inverter to start charging according to the charging switch signal; and the discharge switch module is used for receiving the discharge switch signal and controlling the inverter to start discharge work according to the discharge switch signal. The utility model discloses can switch the dc-to-ac converter at any time and charge or discharge operating condition to adapt to the various complicated dc-to-ac converter behaviour in service of user better.
Description
Technical Field
The utility model belongs to the technical field of the dc-to-ac converter, especially, relate to a controlling means and an inverter of dc-to-ac converter.
Background
The inverter is a converter of Direct Current (DC) to AC (AC), and is widely applied to air conditioners, home theaters, electric grinding wheels, electric tools, sewing machines, DVDs, VCDs, computers, televisions, washing machines, range hoods, refrigerators, video recorders, massagers, fans, lighting and the like. In the prior art, an inverter can be charged or discharged in a using process, one end of the inverter is connected with a power supply end, the other end of the inverter is connected with load equipment, the inverter generally judges whether the load equipment reaches a preset value by setting a preset value, so that the load equipment is autonomously charged or discharged, most of the inverters are controlled in an autonomous working mode, such as charging priority and the like, but the traditional control mode cannot achieve the purpose of adjusting the working state of the inverter at any time.
The technical field needs to develop a technical scheme capable of switching the charging or discharging working state of the inverter at any time, so as to better adapt to various complex inverter use conditions of users.
SUMMERY OF THE UTILITY MODEL
The utility model provides a controlling means of dc-to-ac converter aims at solving the operating condition's of adjusting the dc-to-ac converter at any time problem.
The utility model discloses a realize like this, the controlling means of dc-to-ac converter includes:
a signal input module for forming an input signal;
the signal detection module is used for receiving the input signal and forming a detection signal according to the input signal;
the control module is used for receiving the detection signal and forming a charging switch signal or a discharging switch signal according to the detection signal;
the charging switch module is used for receiving the charging switch signal when the control module forms the charging switch signal and controlling the inverter to start charging according to the charging switch signal;
and the discharge switch module is used for receiving the discharge switch signal when the control module forms the discharge switch signal and controlling the inverter to start discharge work according to the discharge switch signal.
Furthermore, the signal detection module comprises a triode, a first resistor, a second resistor, a third resistor and a fourth resistor, wherein the base of the triode is connected with one end of the second resistor and the signal input module respectively, the collector of the triode is connected with one end of the third resistor, one end of the fourth resistor and the control module respectively, the emitter of the triode is connected with the other end of the fourth resistor and the grounding end respectively, the other end of the third resistor is connected with the first resistor and the power end, and the other end of the first resistor is connected with the signal input module.
Furthermore, the signal detection module further comprises a first capacitor, and the first capacitor is respectively connected with the fourth resistor and the control module.
Furthermore, the charging switch module comprises a first MOS transistor, a first diode and a first relay, wherein a gate of the first MOS transistor is connected with the control module, a source of the first MOS transistor is connected with a grounding terminal, a drain of the first MOS transistor is respectively connected with an anode of the first diode and the first relay, a cathode of the first diode is respectively connected with the first relay and a power supply terminal, and the first relay is further connected with the inverter.
Furthermore, the charging switch module further comprises a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a second capacitor and a third capacitor, wherein one end of the fifth resistor is connected with the control module, the other end of the fifth resistor is respectively connected with one end of the sixth resistor and the grid electrode of the first MOS transistor, the other end of the sixth resistor is connected with the source electrode of the first MOS transistor, one end of the second capacitor is connected with the source electrode of the first MOS transistor, the other end of the second capacitor is connected with the drain electrode of the first MOS transistor, one end of the seventh resistor is connected with the negative electrode of the first diode, the other end of the seventh resistor is respectively connected with one end of the third capacitor and the power supply end, the eighth resistor is connected with the seventh resistor in parallel, and the other end of the third capacitor is connected with the ground terminal.
Furthermore, the discharge switch module comprises a second MOS transistor, a second diode and a second relay, wherein a gate of the second MOS transistor is connected to the control module, a source of the second MOS transistor is connected to a ground terminal, a drain of the second MOS transistor is connected to an anode of the second diode and the second relay respectively, a cathode of the second diode is connected to the second relay and a power supply terminal respectively, and the second relay is further connected to the inverter.
Furthermore, the discharge switch module further includes a ninth resistor, a tenth resistor, an eleventh resistor, a twelfth resistor, a fourth capacitor and a fifth capacitor, one end of the ninth resistor is connected to the control module, the other end of the ninth resistor is connected to one end of the tenth resistor and the gate of the second MOS transistor respectively, the other end of the tenth resistor is connected to the source of the second MOS transistor, one end of the fourth capacitor is connected to the source of the second MOS transistor, the other end of the fourth capacitor is connected to the drain of the second MOS transistor, one end of the eleventh resistor is connected to the cathode of the second diode, the other end of the eleventh resistor is connected to one end of the fifth capacitor and the power supply terminal respectively, the twelfth resistor is connected to the eleventh resistor in parallel, and the other end of the fifth capacitor is connected to the ground terminal.
Furthermore, the signal input module is a key.
The utility model also provides an inverter, inverter include the dc-to-ac converter and controlling means.
The utility model provides a control device and an inversion device of an inverter, wherein, a signal input module forms an input signal, and a signal detection module receives the input signal in real time and forms a detection signal according to the input signal; the control module receives the detection signal and forms a charging switch signal or a discharging switch signal according to the detection signal; when the control module forms a charging switch signal, the charging switch module receives the charging switch signal and controls the inverter to start charging according to the charging switch signal; and when the control module forms a discharging switch signal, the discharging switch module receives the discharging switch signal and controls the inverter to start discharging according to the discharging switch signal. When the charging switch signal or the discharging switch signal is not detected, the charging switch module and the discharging switch module are ensured to be in a full-off state, and safety is ensured. The device can switch the charging or discharging working state of the inverter at any time, thereby better adapting to various complex inverter use conditions of users.
Drawings
Fig. 1 is a block diagram of a control device of an inverter according to a first embodiment of the present invention;
fig. 2 is a circuit diagram of a signal detection module according to a second embodiment to a third embodiment of the present invention;
fig. 3 is a circuit diagram of a charging switch module according to a fourth embodiment to a fifth embodiment of the present invention;
fig. 4 is a circuit diagram of a discharging switch module according to a sixth embodiment to a seventh embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The utility model provides a controlling means of dc-to-ac converter, include: the device comprises a signal input module, a signal detection module, a control module, a charging switch module and a discharging switch module. The signal input module forms an input signal, and the signal detection module receives the input signal in real time and forms a detection signal according to the input signal; the control module receives the detection signal and forms a charging switch signal or a discharging switch signal according to the detection signal; when the control module forms a charging switch signal, the charging switch module receives the charging switch signal and controls the inverter to start charging according to the charging switch signal; and when the control module forms a discharging switch signal, the discharging switch module receives the discharging switch signal and controls the inverter to start discharging according to the discharging switch signal. When the charging switch signal or the discharging switch signal is not detected, the charging switch module and the discharging switch module are ensured to be in a full-off state, and safety is ensured. By detecting the use habits of users, the requirements of the users can be met under the condition that the users switch the working state of the inverter at any time.
Example one
An embodiment of the utility model provides a controlling means of inverter, as shown in fig. 1, the device includes:
a signal input module 100 for forming an input signal;
a signal detection module 200, configured to receive an input signal and form a detection signal according to the input signal;
a control module 300, configured to receive the detection signal and form a charging switch signal or a discharging switch signal according to the detection signal;
the charging switch module 400 is configured to receive a charging switch signal when the control module 300 forms the charging switch signal, and control the inverter 600 to start charging according to the charging switch signal;
the discharging switch module 500 is configured to receive the discharging switch signal when the control module 300 forms the discharging switch signal, and control the inverter 600 to start a discharging operation according to the discharging switch signal.
The operating principle of the control device of the inverter is as follows:
the signal input module 100 forms an input signal, and the signal detection module 200 receives the input signal in real time and forms a detection signal according to the input signal; the control module 300 receives the detection signal and forms a charging switch signal or a discharging switch signal according to the detection signal; when the control module 300 forms the charging switching signal, the charging switching module 400 receives the charging switching signal and controls the inverter 600 to start charging according to the charging switching signal; when the control module 300 forms the discharge switching signal, the discharge switching module 500 receives the discharge switching signal and controls the inverter 600 to turn on the discharge operation according to the discharge switching signal. When the charging switch signal or the discharging switch signal is not detected, the charging switch module 400 and the discharging switch module 500 are ensured to be in a full-off state, and safety is ensured. By detecting the use habits of users, the requirements of the users can be met under the condition that the users switch the working state of the inverter at any time.
In this embodiment, the signal input module may adopt the key S1, but is not limited thereto. The control module 300 may be a control board of the inverter control switch, and the MCU in the control board is used to receive the detection signal. S1 is used as an external signal, the signal detection module 200 detects the off signal or the on signal of the button S1 in real time, and can preset the on signal corresponding to the charging signal to start the charging mode of the inverter, and preset the off signal corresponding to the discharging signal to start the discharging mode of the inverter, thereby controlling the charging operation or the discharging operation of the inverter at any time. The external signal can be preset according to the use habit of the user, and the requirement of the user can be met under the condition that the working state of the inverter is switched at any time by the user.
Example two
The embodiment of the utility model provides a controlling means of inverter, as shown in fig. 2, on the basis of embodiment one, signal detection module 200 wherein includes triode Q4, first resistance R1, second resistance R2, third resistance R3, fourth resistance R4, second resistance R2 one end and signal input module 100 are connected respectively to triode Q4 ' S base, third resistance R3 one end is connected respectively to triode Q4 ' S collecting electrode, fourth resistance R4 one end and control module 300, fourth resistance R4 other end and earthing terminal are connected respectively to triode Q4 ' S projecting pole, first resistance R1 and power end are connected to the third resistance R3 other end, signal input module S1 is connected to the first resistance R1 other end.
In this embodiment, when the external signal S1 is turned off, the power VCC is connected to the ground GND through the third resistor R3 and the fourth resistor R4, and the voltage on the signal check, i.e., the voltage divided by the fourth resistor R4, is at a high level and is output to the control module 300; when the external signal S1 is turned on, the power VCC satisfies the condition that the transistor Q4 is turned on by the voltage generated by the first resistor R1 and the second resistor R2 and the current passing through the transistor Q4, and the voltage on the signal check, that is, the VCE voltage (the voltage between the collector and the emitter of the transistor Q4) after the transistor Q4 is turned on, is at a low level and is output to the control module 300.
EXAMPLE III
An embodiment of the present invention provides a control apparatus for an inverter, as shown in fig. 2, on the basis of the second embodiment, the signal detection module 200 further includes a first capacitor C1, and the first capacitor C1 is connected to the fourth resistor R4 and the control module 300 respectively.
In this embodiment, the first capacitor C1 is configured to filter the signal check output by the signal detection module 200 and output the filtered signal check to the control module.
Example four
The embodiment of the utility model provides a controlling means of inverter, as shown in fig. 3, on the basis of embodiment one, wherein switch module 400 that charges includes first MOS pipe Q1, first diode D1, first relay REL1, control module 300 is connected to first MOS pipe Q1's grid, the earthing terminal is connected to first MOS pipe Q1's source electrode, first diode D1's positive pole and first relay REL1 are connected respectively to first MOS pipe Q1's drain electrode, first relay REL1 and power end are connected respectively to first diode D1's negative pole, inverter P1 is still connected to first relay REL 1.
The operating principle of the first MOS transistor Q1 is as follows: after a voltage with correct polarity and magnitude is applied between the source and the drain of the first MOS transistor Q1, and a control voltage is applied between the gate and the source, a current with corresponding magnitude flows from the source to the drain, and when the signal voltage is large enough, the first MOS transistor Q1 is instantly saturated to become a switch.
In this embodiment, when the external signal S1 is turned off, the charging switch module is turned on, the discharging switch module is turned off, the control module outputs a high level to the D01 of the charging switch module, and outputs a low level to the D01 of the discharging switch module, so as to form a charging switch signal, the inverter P1 starts a charging operation, the high level makes the first MOS transistor Q1 saturated to become a switch, and the first relay REL1 is closed.
EXAMPLE five
The embodiment of the present invention provides a control device for an inverter, as shown in fig. 3, based on the fourth embodiment, the charging switch module 400 further includes a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a second capacitor C2 and a third capacitor C3, one end of the fifth resistor R5 is connected to the control module, the other end of the fifth resistor R5 is connected to one end of the sixth resistor R6 and the gate of the first MOS transistor Q1, the other end of the sixth resistor R6 is connected to the source of the first MOS transistor Q1, one end of the second capacitor C2 is connected to the source of the first MOS transistor Q1, the other end of the second capacitor C2 is connected to the drain of the first MOS transistor Q1, one end of the seventh resistor R7 is connected to the cathode of the first diode D1, the other end of the seventh resistor R7 is connected to one end of the third capacitor C3 and the power supply terminal, the eighth resistor R8 is connected in parallel to the seventh resistor R7, and the other end of the third capacitor C3 is connected to the ground.
In this embodiment, the fifth resistor R5 is used to prevent the breakdown of surrounding devices due to the fast switching speed of the first MOS transistor Q1 under high voltage. The sixth resistor R6 is used as a bleeder resistor to bleed off a small amount of static electricity of G-S, so as to prevent the first MOS transistor Q1 from generating misoperation, even break down the first MOS transistor Q1 and play a role in protection. The seventh resistor R7 and the eighth resistor R8 which are connected in parallel are used for limiting overvoltage in the circuit. The second capacitor C2 is used to absorb the spike supply. The third capacitor C3 is used for filtering.
EXAMPLE six
The embodiment of the utility model provides a controlling means of inverter, as shown in fig. 4, on the basis of embodiment one, discharge switch module 500 wherein includes second MOS pipe Q2, second diode D2, second relay REL2, second MOS pipe Q2's grid connection control module, the earthing terminal is connected to second MOS pipe Q2's source, second diode D2's positive pole and second relay REL2 are connected respectively to second MOS pipe Q2's drain, second relay REL2 and power end are connected respectively to second diode D2's negative pole, inverter is still connected to second relay REL 2.
In this embodiment, when the external signal S1 is turned on, the charging switch module is turned off, the discharging switch module is turned on, the control module outputs a low level to D01 of the charging switch module and outputs a high level to D02 of the discharging switch module to form a discharging switch signal, the inverter P1 starts a discharging operation, the high level makes the second MOS transistor Q2 saturated to become a switch, and the second relay REL2 is turned on.
EXAMPLE seven
The embodiment of the present invention provides a control device for an inverter, as shown in fig. 4, based on the sixth embodiment, the discharging switch module 500 further includes a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12, a fourth capacitor C4 and a fifth capacitor C5, one end of the ninth resistor R9 is connected to the control module, the other end of the ninth resistor R9 is connected to one end of the tenth resistor R10 and the gate of the second MOS transistor Q2, the other end of the tenth resistor R10 is connected to the source of the second MOS transistor Q2, one end of the fourth capacitor C4 is connected to the source of the second MOS transistor Q2, the other end of the fourth capacitor C4 is connected to the drain of the second MOS transistor Q2, one end of the eleventh resistor R11 is connected to the cathode of the second diode D2, the other end of the eleventh resistor R11 is connected to one end of the fifth capacitor C5 and the power supply terminal, the twelfth resistor R12 is connected to the eleventh resistor R11 in parallel, and the other end of the fifth capacitor C5 is connected to the ground.
In this embodiment, the ninth resistor R9 is used to prevent the breakdown of surrounding devices due to the excessively fast switching rate of the second MOS transistor Q2 under high voltage. The tenth resistor R10 is used as a leakage resistor to drain a small amount of static electricity of G-S, thereby preventing the second MOS transistor Q2 from generating malfunction, and even breaking down the second MOS transistor Q2, thereby playing a role in protection. The eleventh resistor R11 and the twelfth resistor R12 which are connected in parallel are used for limiting overvoltage in the circuit. The fourth capacitor C4 is used to absorb the spike power. The fifth capacitor C5 is used for filtering.
Example eight
An embodiment of the utility model provides an inverter, this inverter include dc-to-ac converter and foretell controlling means.
In this embodiment, the control device in the above embodiment is applied to an inverter device, so that the charging and discharging operating states of the inverter can be switched at any time, and the control device is better adapted to various complicated use conditions of a user.
The utility model provides an among the controlling means of dc-to-ac converter, external signal is by signal detection module real-time detection, can predetermine the signal of opening and correspond the signal of charging, opens the dc-to-ac converter charge mode, predetermines the signal of closing and corresponds the signal of discharging, opens the dc-to-ac converter discharge mode to this realizes controlling the work of charging or the work of discharging of dc-to-ac converter at any time, has guaranteed that the user can satisfy user's demand under the condition of switching inverter operating condition at any time. When the external signal is disconnected, the power supply is connected to the ground end through the third resistor and the fourth resistor, and the voltage divided by the fourth resistor is high level and is output to the control module; when an external signal is switched on, the power supply meets the condition of switching on the triode through the voltage generated by the first resistor and the second resistor and the current passing through the triode, and the VCE voltage after the triode is switched on is at a low level and is output to the control module. When an external signal is disconnected, the charging switch module is switched on, the discharging switch module is switched off, the control module outputs a high level to the charging switch module and outputs a low level to the discharging switch module to form a charging switch signal, the inverter starts charging work, the high level enables the first MOS tube to be saturated to form a switch, the first relay is closed, and the power supply flows to the inverter for charging. When an external signal is switched on, the charging switch module is switched off, the discharging switch module is switched on, the control module outputs a low level to the charging switch module and outputs a high level to the discharging switch module to form a discharging switch signal, the inverter starts discharging work, and the high level enables the second MOS tube to be fully integrated into a switch. In addition, a first capacitor in the signal detection module is used for filtering the signal output by the signal detection module and outputting the filtered signal to the control module. The utility model also provides an inverter device is through using above-mentioned controlling means to inverter device, can switch over dc-to-ac converter charge-discharge operating condition at any time, adapts to the various complicated user conditions of user better.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. A control device of an inverter, characterized by comprising:
a signal input module for forming an input signal;
the signal detection module is used for receiving the input signal and forming a detection signal according to the input signal;
the control module is used for receiving the detection signal and forming a charging switch signal or a discharging switch signal according to the detection signal;
the charging switch module is used for receiving the charging switch signal when the control module forms the charging switch signal and controlling the inverter to start charging according to the charging switch signal;
and the discharge switch module is used for receiving the discharge switch signal when the control module forms the discharge switch signal and controlling the inverter to start discharge work according to the discharge switch signal.
2. The apparatus according to claim 1, wherein the signal detection module comprises a transistor, a first resistor, a second resistor, a third resistor, and a fourth resistor, wherein a base of the transistor is connected to one end of the second resistor and the signal input module, respectively, a collector of the transistor is connected to one end of the third resistor, one end of the fourth resistor, and the control module, respectively, an emitter of the transistor is connected to the other end of the fourth resistor and a ground terminal, respectively, the other end of the third resistor is connected to the first resistor and a power source terminal, and the other end of the first resistor is connected to the signal input module.
3. The inverter control device according to claim 2, wherein the signal detection module further comprises a first capacitor, and the first capacitor is connected to the fourth resistor and the control module, respectively.
4. The control device of the inverter according to claim 1, wherein the charge switch module comprises a first MOS transistor, a first diode, and a first relay, a gate of the first MOS transistor is connected to the control module, a source of the first MOS transistor is connected to a ground terminal, a drain of the first MOS transistor is connected to an anode of the first diode and the first relay, respectively, a cathode of the first diode is connected to the first relay and a power source terminal, respectively, and the first relay is further connected to the inverter.
5. The inverter control device according to claim 4, wherein the charge switch module further includes a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a second capacitor, and a third capacitor, one end of the fifth resistor is connected to the control module, the other end of the fifth resistor is connected to one end of the sixth resistor and the gate of the first MOS transistor, the other end of the sixth resistor is connected to the source of the first MOS transistor, one end of the second capacitor is connected to the source of the first MOS transistor, the other end of the second capacitor is connected to the drain of the first MOS transistor, one end of the seventh resistor is connected to the negative electrode of the first diode, the other end of the seventh resistor is connected to one end of the third capacitor and the power supply terminal, the eighth resistor is connected in parallel to the seventh resistor, and the other end of the third capacitor is connected to the ground terminal.
6. The control device of the inverter according to claim 1, wherein the discharge switch module includes a second MOS transistor, a second diode, and a second relay, a gate of the second MOS transistor is connected to the control module, a source of the second MOS transistor is connected to a ground terminal, a drain of the second MOS transistor is connected to an anode of the second diode and the second relay, respectively, a cathode of the second diode is connected to the second relay and a power source terminal, respectively, and the second relay is further connected to the inverter.
7. The control apparatus of the inverter according to claim 6, wherein the discharge switch module further includes a ninth resistor, a tenth resistor, an eleventh resistor, a twelfth resistor, a fourth capacitor, and a fifth capacitor, one end of the ninth resistor is connected with the control module, the other end of the ninth resistor is respectively connected with one end of the tenth resistor and the grid electrode of the second MOS tube, the other end of the tenth resistor is connected with the source electrode of the second MOS tube, one end of the fourth capacitor is connected with the source electrode of the second MOS tube, the other end of the fourth capacitor is connected with the drain electrode of the second MOS tube, one end of the eleventh resistor is connected with the cathode of the second diode, the other end of the eleventh resistor is connected with one end of a fifth capacitor and a power supply end respectively, the twelfth resistor is connected with the eleventh resistor in parallel, and the other end of the fifth capacitor is connected with a ground end.
8. The control device of an inverter according to any one of claims 1 to 7, wherein the signal input module is a key.
9. An inverter device, characterized in that the inverter device comprises an inverter and a control device according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922056089.4U CN210839387U (en) | 2019-11-25 | 2019-11-25 | Control device of inverter and inverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922056089.4U CN210839387U (en) | 2019-11-25 | 2019-11-25 | Control device of inverter and inverter |
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| Publication Number | Publication Date |
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| CN210839387U true CN210839387U (en) | 2020-06-23 |
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| CN201922056089.4U Active CN210839387U (en) | 2019-11-25 | 2019-11-25 | Control device of inverter and inverter |
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