CN110736250B - Drive control circuit board and air conditioner - Google Patents
Drive control circuit board and air conditioner Download PDFInfo
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- CN110736250B CN110736250B CN201911053543.9A CN201911053543A CN110736250B CN 110736250 B CN110736250 B CN 110736250B CN 201911053543 A CN201911053543 A CN 201911053543A CN 110736250 B CN110736250 B CN 110736250B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/88—Electrical aspects, e.g. circuits
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Abstract
The invention provides a drive control circuit board and an air conditioner, wherein the drive control circuit board comprises: the common-mode inductor assembly comprises a substrate, wherein an input terminal, a first filtering assembly, a common-mode inductor assembly and a boosting inductor assembly are sequentially connected to the substrate along the same wiring direction; the input terminal is configured to be connected to a power supply signal; the first filtering component is configured to filter out interference signals carried in the power supply signals; the boost inductor is configured to store or release a supply signal; the first end of the first filter assembly is connected with the second end of the first filter assembly through a connecting line, and the vertical distance between the boost inductor and the reference line is larger than that between the common mode inductor assembly and the reference line. The vertical distance between the boost inductor and the datum line is larger than that between the common mode inductor assembly and the datum line, electromagnetic interference generated on the boost inductor can be prevented from being coupled to the input terminal, and further electromagnetic interference diffusion is avoided, and the final product can meet electromagnetic interference standards.
Description
Technical Field
The invention relates to the field of electrical equipment, in particular to a drive control circuit board and an air conditioner.
Background
In the related art, a boost inductor is disposed in an electric control board of an air conditioner. The boost inductor can generate electromagnetic interference, the electromagnetic interference generated by the boost inductor has certain directivity, and if the boost inductor is randomly placed, the electromagnetic interference is easy to diffuse, specifically, the electromagnetic interference exceeds the standard, and the electromagnetic interference standard cannot be met.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art or the related art.
To this end, a first aspect of the present invention proposes a drive control circuit board.
A second aspect of the present invention provides an air conditioner.
In view of this, a first aspect of the present invention provides a drive control circuit board including: the common-mode inductor assembly comprises a substrate, wherein an input terminal, a first filtering assembly, a common-mode inductor assembly and a boosting inductor assembly are sequentially connected to the substrate along the same wiring direction; the input terminal is configured to be connected to a power supply signal; the first filtering component is configured to filter out interference signals carried in the power supply signals; the boost inductor is configured to store or release a supply signal; the first end of the first filter assembly is connected with the second end of the first filter assembly through a connecting line, and the vertical distance between the boost inductor and the reference line is larger than that between the common mode inductor assembly and the reference line.
In the technical scheme, an input terminal, a first filter assembly, a common mode inductor assembly and a boost inductor assembly are arranged on a substrate of a circuit board, the height of the boost inductor assembly is lower than the height of the common mode inductor assembly, the concrete expression is that a connecting line of a first end of the first filter assembly and a second end of the first filter assembly is used as a datum line, the vertical distance between the boost inductor and the datum line is greater than the vertical distance between the common mode inductor assembly and the datum line, the electromagnetic interference generated on the boost inductor can be prevented from being coupled to the input terminal, the electromagnetic interference can be prevented from being diffused, and the final product can meet the electromagnetic interference standard.
In addition, the driving control circuit board in the above technical solution provided by the present invention may further have the following additional technical features:
in the above technical solution, a first end of the first filter component is connected to the input terminal, and a second end of the first filter component is connected to a first end of the common mode inductance component.
In the technical scheme, the first filtering component is used for filtering the electromagnetic interference signals flowing through the safety component, so that the electromagnetic interference signals on the circuit board are further reduced, and the EMC (Electro Magnetic Compatibility) performance of the circuit board is improved.
In any one of the above technical solutions, the substrate includes a first wiring layer and a second wiring layer, and the input circuit further includes: and one path of power supply signal is connected to the first end of the insurance component through the first wiring layer of the substrate, and the other path of power supply signal is connected to the first end of the first filtering component through the second wiring layer of the substrate.
In the technical scheme, the two paths of power supply signals are arranged in different wiring layers, that is, one path of power supply signal is connected to the first end of the fuse component through the first wiring layer of the substrate, and the other path of power supply signal is connected to the first end of the first filtering component through the second wiring layer of the substrate.
In some embodiments, an insulating layer is arranged between the first wiring layer and the second wiring layer, the insulating layer is isolated from wires of other power supply signals and the safety component through the insulating layer, and the running mode of routing of the two power supply signals and the safety component is similar to that of a twisted pair, so that on one hand, the enclosed area between the input terminal and the safety component is minimum, and on the other hand, interference signals generated by coupling between the routing of the power supply signals and the routing of the safety component can be mutually offset, interference signals of the input terminal accessed to the power supply signals on other elements and external electrical appliances on the circuit board are reduced, interference of the other elements on the circuit board on the power supply signals and a power grid system can also be remarkably reduced, and the reliability and the anti-interference capability of the drive control circuit board are improved.
In any of the above technical solutions, the common mode inductor includes a first inductor winding and a second inductor winding, and any two of a wiring direction of a winding of the boost inductor, a wiring direction of the first inductor winding, and a wiring direction of the second inductor winding are parallel to each other.
In this technical scheme, the coil wiring direction through setting up the inductance that steps up is parallel with the coil wiring direction of common mode inductance, and then guarantees that the electric current flow direction in the inductance that steps up can not produce alternately with the electric current flow direction in the common mode inductance, can avoid the produced electromagnetic interference diffusion of the inductance that steps up on the one hand, and on the other hand can avoid the inductance that steps up to take place weak coupling with other devices, reduces the coupling effect of circuit to the electromagnetic interference signal, promotes the EMC performance of circuit.
In any one of the above technical solutions, the driving control circuit board further includes: and the relay, the first inductance coil is connected to the input end of the relay through the first wiring layer, the output end of the relay is connected to the first input end of the rectifier, the second inductance coil is connected to the second input end of the rectifier through the second wiring layer, and the output end of the relay is connected to the bus line of the load.
In the technical scheme, the first end of the relay is connected with the first inductance coil through the first wiring layer, the output end of the relay is connected to the first end of the rectifier, the second end of the rectifier is connected with the second inductance coil through the second wiring layer, the two inductance coils of the common-mode inductance assembly are connected with the relay and the rectifier through different wiring layers, wiring lines are kept parallel to the greatest extent, the loop area is reduced, the coupling effect of the circuit on electromagnetic interference signals is reduced, and the EMC performance of the circuit is improved.
In any of the above technical solutions, the direction of the current in the boost inductor is not parallel to the direction of the current in the relay.
In this technical scheme, through setting up the current direction nonparallel in the current direction in the inductance that steps up and the relay, the concrete expression is wire direction nonparallel in the wiring direction of inductance coil that steps up and the relay circuit board, can avoid the line of walking in the relay that sets up in the magnetic leakage field that produces and the circuit board in the wire of inductance that steps up to take place the weak coupling, avoids electromagnetic interference to leak through the line diffusion of walking of relay, is favorable to the final product to satisfy the electromagnetic interference standard.
In any one of the above technical solutions, the driving control circuit board further includes: the output end of the rectifier is connected to a busbar circuit, the busbar circuit comprises a high-voltage busbar and a low-voltage busbar, and the common-mode inductor is bridged between the high-voltage busbar and the low-voltage busbar.
In this solution, the output of the rectifier is connected to the busbar line to provide a stable dc output through the busbar line. The common mode inductor is bridged between the high-voltage bus and the low-voltage bus, wherein the mode inductor assembly comprises two inductor coils which respectively correspond to two power supply signals, the wiring direction of the inductor coils is perpendicular to the wiring line between the two terminals of the first filtering assembly, and the enclosed area between the inductor coils and the filtering assembly is reduced as much as possible. Two inductance coils of the common mode inductance assembly are connected with the relay and the rectifier through different wiring layers, so that the wiring lines are kept parallel to the greatest extent, the area of a loop is reduced, the coupling effect of the circuit on electromagnetic interference signals is reduced, and the EMC performance of the circuit is improved.
In any one of the above technical solutions, the driving control circuit board further includes: and a first end of the voltage stabilizing diode is connected to the output end of the relay, and a second end of the voltage stabilizing diode is connected to the second input end of the rectifier.
In the technical scheme, a voltage stabilizing diode is arranged between the output end of the relay and the second input end of the rectifier, so that voltage fluctuation in a circuit can be effectively reduced. Specifically, the zener diode is connected between the output terminal of the relay and the input terminal of the rectifier, thereby stabilizing the input voltage of the rectifier, so that the rectifier can output a stable dc signal.
In any of the above technical solutions, the input terminal includes a ground terminal, and the input circuit further includes: and the second end of the fuse component is connected to the first end of the second filter component through the second wiring layer, and the second end of the second filter component is connected to the ground terminal.
In the technical scheme, the wiring between the second filtering component and the fuse component and the wiring between the first filtering component and the fuse component are distributed on different wiring layers, on one hand, the wiring reduces the total area of a loop formed by the wiring, on the other hand, the wiring in different wiring layers can be distributed in a mode similar to a twisted pair, interference signals generated by coupling are mutually offset, and the EMC performance of the circuit is improved.
In any of the above technical solutions, the input circuit further includes: and the second end of the first filter assembly is connected to the first end of the third filter assembly through the second wiring layer, and the second end of the third filter assembly is connected to the ground terminal.
In the technical scheme, the second end of the first filter component is connected to the third filter component from the second wiring layer, the wiring of the first filter component on the first wiring layer and the wiring of the first filter component on the second wiring layer are arranged in a manner similar to a twisted pair, interference signals generated by coupling are mutually offset, and the EMC performance of the circuit is improved.
In any one of the above technical solutions, the driving control circuit board further includes: the first end, the second end and the third end of the boost diode are connected to the high-voltage bus, the first end and the third end of the boost diode are connected to the second end of the boost inductor, and the second end of the boost diode is connected to the first end of the capacitive element; and the first end of the switch device is connected into the high-voltage bus and connected to the second end of the boost inductor, and the second end of the switch device is connected into the low-voltage bus and connected to the second end of the capacitive element.
In the technical scheme, the boost diode, the capacitive element, the switching device and the boost inductor form a power factor correction circuit for improving the output power of the drive control circuit. The boost diode is connected to the high-voltage bus, the first end and the third end of the boost diode are connected in series and then connected to the boost inductor, the second end of the boost diode is connected to the capacitive element, the current passing through the boost inductor is boosted again and then charged to the capacitive element, and therefore the drive control circuit can output a drive signal with stable power.
According to a second aspect of the present invention, there is provided an air conditioner comprising: the drive control circuit board defined in any one of the above technical solutions; and a motor load connected to the drive control circuit board, the drive control circuit board configured to control the motor load to operate. Therefore, the air conditioner has all the beneficial effects of the driving control circuit board in any one of the technical schemes, and the details are not repeated herein.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 shows a schematic structural diagram of a drive control circuit board according to an embodiment of the present invention;
fig. 2 shows a disturbance power test chart of a drive control board in the related art;
FIG. 3 shows a disturbance power test chart of a drive control circuit board according to an embodiment of the invention;
fig. 4 shows a schematic diagram of an air conditioner according to an embodiment of the present invention.
The solid line traces in fig. 1 are laid out on the first wiring layer, the dotted line traces in fig. 1 are laid out on the second wiring layer, and the corresponding relationship between the structure and the marks shown in fig. 1 is as follows:
100 substrate, 102 input terminal, 1022 ground terminal, 104 first filter element, 106 boost inductance, 108 common mode inductance, 1082 first inductor, 1084 second inductor, 110 fuse element, 112 relay, 114 rectifier, 116 zener diode, 118 second filter element, 120 third filter element, 122 boost diode, 124 switching device, 126 capacitive element.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
The driving control circuit board and the air conditioner according to some embodiments of the present invention are described below with reference to fig. 1 to 4.
The first embodiment is as follows:
as shown in fig. 1, in an embodiment of the first aspect of the present invention, there is provided a drive control circuit board including: a substrate 100, wherein an input terminal 102, a first filter assembly 104, a common mode inductor 108 assembly and a boost inductor 106 assembly are sequentially connected to the substrate 100 along the same wiring direction; the input terminal 102 is configured to access a power supply signal; the first filtering component 104 is configured to filter out interference signals carried in the power supply signal; the boost inductor 106 is configured to store or release a supply signal; a connection line between the first end of the first filter element 104 and the second end of the first filter element 104 is used as a reference line, and a vertical distance between the boost inductor 106 and the reference line is greater than a vertical distance between the common mode inductor 108 and the reference line.
The substrate 100 of the circuit board is provided with an input terminal 102, a first filter component 104, a common mode inductor 108 component and a boost inductor 106 component, and by setting the height of the boost inductor 106 component to be lower than the height of the common mode inductor 108 component, the specific expression is that a connection line between a first end of the first filter component 104 and a second end of the first filter component 104 is used as a reference line, and the vertical distance between the boost inductor 106 and the reference line is greater than the vertical distance between the common mode inductor 108 component and the reference line, so that electromagnetic interference generated on the boost inductor 106 can be prevented from being coupled to the input terminal 102, and further, the diffusion of the electromagnetic interference is avoided, and the final product can meet the electromagnetic interference standard.
In some embodiments, a first end of the first filter component 104 is connected to the input terminal 102, and a second end of the first filter component 104 is connected to a first end of the common mode inductance 108 component.
The first filtering component 104 filters the electromagnetic interference signals flowing through the safety component 110, so as to further reduce the electromagnetic interference signals on the circuit board, and improve the EMC (electromagnetic Compatibility) performance of the circuit board.
In some embodiments, the substrate 100 includes a first wiring layer and a second wiring layer, and the input circuit further includes: one path of the power supply signal of the fuse component 110 is connected to the first end of the fuse component 110 through the first wiring layer of the substrate 100, and the other path of the power supply signal of the fuse component 110 is connected to the first end of the first filter component 104 through the second wiring layer of the substrate 100.
The two power supply signals are routed in different routing layers, that is, one power supply signal is connected to the first end of the fuse module 110 through the first routing layer of the substrate 100, and the other power supply signal is connected to the first end of the first filter module 104 through the second routing layer of the substrate 100.
The insulating layer is arranged between the first wiring layer and the second wiring layer and is isolated from wires of other power supply signals and the safety component 110 through the insulating layer, and the running mode of routing of the two power supply signals and the safety component is similar to that of a twisted pair, so that on one hand, the enclosed area between the input terminal 102 and the safety component 110 is the smallest, and on the other hand, interference signals generated by coupling between the routing of the power supply signals and the routing of the safety component 110 can be mutually offset, interference signals of the power supply signals accessed by the input terminal 102 to other elements and external electrical appliances on the circuit board are reduced, interference of the other elements on the circuit board to the power supply signals and a power grid system can be remarkably reduced, and reliability and anti-interference capability of the drive control circuit board are improved.
In some embodiments, the common mode inductor 108 includes a first inductor coil 1082 and a second inductor coil 1084, and any two wiring directions of the coil of the boost inductor 106, the first inductor coil 1082, and the second inductor coil 1084 are parallel to each other.
The coil wiring direction of the boost inductor 106 is parallel to the coil wiring direction of the common mode inductor 108, so that the current flowing direction in the boost inductor 106 and the current flowing direction in the common mode inductor 108 are not crossed, electromagnetic interference diffusion generated by the boost inductor 106 can be avoided on one hand, weak coupling between the boost inductor 106 and other devices can be avoided on the other hand, the coupling effect of a circuit on electromagnetic interference signals is reduced, and the EMC performance of the circuit is improved.
In some embodiments, the drive control circuit board further includes: and a relay 114, the first inductor 1082 being connected to an input terminal of the relay 114 by a first wiring layer, an output terminal of the relay 114 being connected to a first input terminal of a rectifier, the second inductor 1084 being connected to a second input terminal of the rectifier by a second wiring layer, wherein the output terminal of the relay 114 is connected to a bus line of a load.
The first end of the relay 114 is connected with the first inductance coil 1082 through a first wiring layer, the output end of the relay 114 is connected with the first end of the rectifier, the second end of the rectifier is connected with the second inductance coil 1084 through a second wiring layer, and the two inductance coils of the common mode inductance 108 assembly are connected with the relay 114 and the rectifier through different wiring layers, so that the wiring lines are kept parallel to each other as much as possible, the loop area is reduced, the coupling effect of the circuit on electromagnetic interference signals is reduced, and the EMC performance of the circuit is improved.
In some embodiments, the direction of current flow in the boost inductor 106 is not parallel to the direction of current flow in the relay 114.
Through setting up the current direction nonparallel among the current direction in the inductance 106 that steps up and the relay 114, the concrete expression is that the wiring direction of the inductance 106 coil that steps up and the relay 114 circuit board in wire direction nonparallel, can avoid the line of walking in the leakage magnetic field that produces and the relay 114 that sets up in the circuit board in the wire of inductance 106 that steps up to take place the weak coupling, avoid electromagnetic interference to leak through the line diffusion of walking of relay 114, be favorable to the final product to satisfy the electromagnetic interference standard.
In some embodiments, the drive control circuit board further includes: the output end of the rectifier is connected to a busbar line, the busbar line comprises a high-voltage busbar and a low-voltage busbar, and the common mode inductor 108 is bridged between the high-voltage busbar and the low-voltage busbar.
The output of the rectifier is connected to the buss line to provide a stable dc output through the buss line. The common mode inductor 108 is bridged between the high-voltage bus and the low-voltage bus, wherein the common mode inductor assembly comprises two inductor coils which respectively correspond to two power supply signals, the wiring direction of the inductor coils is perpendicular to the wiring line between the two terminals of the first filtering assembly 104, and the enclosed area between the inductor coils and the filtering assembly is reduced as much as possible. Two inductance coils of the common mode inductance 108 assembly are connected with the relay 114 and the rectifier through different wiring layers, so that the wiring lines are kept parallel to the greatest extent, the loop area is reduced, the coupling effect of the circuit on electromagnetic interference signals is reduced, and the EMC performance of the circuit is improved.
In some embodiments, the drive control circuit board further includes: and a zener diode 116, wherein a first terminal of the zener diode 116 is connected to the output terminal of the relay 114, and a second terminal of the zener diode 116 is connected to the second input terminal of the rectifier.
A zener diode 116 is provided between the output of the relay 114 and the second input of the rectifier to effectively reduce voltage fluctuations in the line. Specifically, a zener diode 116 is connected between the output terminal of the relay 114 to the input terminal of the rectifier, thereby stabilizing the input voltage of the rectifier so that the rectifier can output a stable dc signal.
In some embodiments, the input terminal 102 includes a ground terminal 1022, and the input circuit further includes: a second end of the fuse element 110 is connected to a first end of the second filter element 118 via the second wiring layer, and a second end of the second filter element 118 is connected to the ground terminal 1022.
The routing lines between the second filter component 118 and the fuse component 110 and the routing lines between the first filter component 104 and the fuse component 110 are distributed in different wiring layers, on one hand, the routing lines reduce the total area of a loop formed by the routing lines, on the other hand, the routing lines in different wiring layers can be distributed in a manner similar to a twisted pair, interference signals generated by coupling are mutually offset, and the EMC performance of the circuit is improved.
In some embodiments, the input circuit further comprises: and a third filter assembly 120, wherein a second end of the first filter assembly 104 is connected to a first end of the third filter assembly 120 through the second wiring layer, and a second end of the third filter assembly 120 is connected to the ground terminal 1022.
The second end of the first filtering component 104 is connected to the third filtering component 120 from the second wiring layer, and the wiring of the first filtering component 104 on the first wiring layer and the wiring of the first filtering component 104 on the second wiring layer are arranged in a manner similar to a twisted pair, so that interference signals generated by coupling are cancelled out, and the EMC performance of the circuit is improved.
In some embodiments, the drive control circuit board further includes: the first end, the second end and the third end of the boost diode 122 are connected to the high-voltage bus, the first end and the third end of the boost diode 122 are connected to the second end of the boost inductor 106, and the second end of the boost diode 122 is connected to the first end of the capacitive element 126; and a switching device 124, wherein a first terminal of the switching device 124 is connected to the high voltage bus and to the second terminal of the boost inductor 106, and a second terminal of the switching device 124 is connected to the low voltage bus and to the second terminal of the capacitive element 126.
The boost diode 122, the capacitive element 126, the switching device 124 and the boost inductor 106 form a power factor correction circuit for boosting the output power of the drive control circuit. The boost diode 122 is connected to the high-voltage bus, the first end and the third end of the boost diode 122 are connected in series and then connected to the boost inductor 106, the second end of the boost diode 122 is connected to the capacitive element 126, the current passing through the boost inductor 106 is boosted again and then charged to the capacitive element 126, and therefore the drive control circuit can output a drive signal with stable power.
Example two:
in one embodiment of the present invention, the drive control circuit board further includes: the specific connection relation and the working principle of the fourth filtering component, the fifth filtering component, the sixth filtering component and the electrolytic capacitor are as follows:
(1) the fourth filtering component is in bridge connection with the output end of the common-mode inductor and is used for filtering the electric signal output by the common-mode inductor.
(2) The fifth filtering component and the sixth filtering component are connected in series and are connected between the fourth filtering component and the rectifier.
(3) And the electrolytic capacitor carries out filtering processing on the rectified bus signal.
The filter assembly comprises a filter capacitor and/or a plurality of filter capacitors connected in series and/or in parallel.
In summary, the reason why the trace of the fuse assembly needs to minimize the interference generated by coupling other circuit traces is that the fuse assembly is between the filter capacitor and the input terminal, i.e. if the circuit near the fuse assembly is coupled to an interference signal, no EMC filtering measure is provided to filter the interference signal, and the interference signal flows to the outside of the product through the power line to form electromagnetic interference.
Example three:
in a complete embodiment of the present invention, as shown in fig. 1, the layout of the circuit board will be described with reference to fig. 1 as "upper" and "lower", specifically as follows:
the placement method of the boost inductor 106 is shown in fig. 1, and the placement position thereof considers the input and output sequence of the current on one hand, and the influence of the boost inductor 106 on the circuit board and other periods on the other hand. The boost inductor 106 is disposed below the common mode inductor 108 and cannot exceed the common mode inductor 108, because the first filter component 104, the second filter component 118 and the third filter component 120 disposed above the common mode inductor 108 all have a function of filtering interference signals, and the function of the filter is to resist high frequency interference, such as filtering and absorbing emission interference (disturbance power).
If the boost inductor 106 is located too far above, the transmission interference is easily coupled to the input end of the power supply, and at this time, the filtering effects of the first filtering component 104, the second filtering component 118, and the third filtering component 120 are weakened, so that the disturbance power test of the product is not qualified.
Therefore, the protection of the boost inductor 106 needs to be as shown in fig. 1, and cannot be "higher" than the common mode inductor 108, and the wire winding the boost inductor 106 needs to run parallel to the up-down direction of the common mode inductor 108, and cannot run parallel to the circuit board in the relay 114 above the boost inductor 106, otherwise, according to the right-hand screw rule in electromagnetism, the leakage magnetic field emitted by the wire of the boost inductor 106 will be weakly coupled with the wiring in the relay 114. The wiring in the relay 114 will create interference, causing the radiated interference to diffuse and leak, thereby failing the nuisance power test of the product.
As shown in FIG. 2, the boost inductor is not arranged by the layout scheme of the invention, the local margin of the disturbance power at 33MHz is only 2.5dB, and a disturbance power test of 300 MHz-1000 MHz needs to be additionally tested.
As shown in FIG. 3, the arrangement scheme of the invention is adopted to arrange the boost inductor, and the residual of the disturbance power reaches 9dB at a place of 33 MHz.
Example four:
as shown in fig. 4, in one embodiment of the present invention, an air conditioner 400 includes: the drive control circuit board provided in any of the above embodiments; the motor load 402 is connected to the driving control circuit board, and the driving control circuit board is configured to control the operation of the motor load 402, so that the air conditioner includes all the advantages of the driving control circuit board provided in any of the above embodiments, which are not described herein again.
In the description of the present invention, the terms "plurality" or "a plurality" refer to two or more, and unless otherwise specifically defined, the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In the present invention, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
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 (12)
1. A drive control circuit board comprising: the common-mode inductor comprises a substrate, wherein an input terminal, a first filtering component, a common-mode inductor component and a boosting inductor component are sequentially connected to the substrate along the same wiring direction; the input terminal is configured to be connected to a power supply signal; the first filtering component is configured to filter out interference signals carried in the power supply signal; the boost inductor is configured to store or release the supply signal; it is characterized in that the preparation method is characterized in that,
and taking a connecting line between the first end of the first filter assembly and the second end of the first filter assembly as a reference line, wherein the vertical distance between the boost inductor and the reference line is greater than the vertical distance between the common mode inductor assembly and the reference line.
2. The drive control circuit board according to claim 1,
the first end of the first filter component is connected to the input terminal, and the second end of the first filter component is connected to the first end of the common mode inductance component.
3. The drive control circuit board of claim 2, wherein the substrate includes a first wiring layer and a second wiring layer, the input circuit further comprising:
and one path of the power supply signal is connected to the first end of the insurance component through the first wiring layer of the substrate, and the other path of the power supply signal is connected to the first end of the first filtering component through the second wiring layer of the substrate.
4. The drive control circuit board according to claim 3, wherein the common mode inductor includes a first inductor winding and a second inductor winding, and a wiring direction of the winding of the boost inductor, a wiring direction of the first inductor winding, and a wiring direction of the second inductor winding are parallel to each other.
5. The drive control circuit board according to claim 4, characterized by further comprising:
a relay, the first inductor being connected to an input of the relay by the first wiring layer, an output of the relay being connected to a first input of a rectifier, the second inductor being connected to a second input of the rectifier by the second wiring layer,
wherein the output of the relay is connected to a busbar line of a load.
6. The drive control circuit board of claim 5, wherein a direction of current flow in the boost inductor is non-parallel to a direction of current flow in the relay.
7. The drive control circuit board according to claim 5 or 6, characterized by further comprising:
the output end of the rectifier is connected to the busbar circuit, the busbar circuit comprises a high-voltage busbar and a low-voltage busbar, and the common-mode inductor is bridged between the high-voltage busbar and the low-voltage busbar.
8. The drive control circuit board according to claim 5 or 6, characterized by further comprising:
and a first end of the voltage stabilizing diode is connected to the output end of the relay, and a second end of the voltage stabilizing diode is connected to the second input end of the rectifier.
9. The drive control circuit board according to claim 5 or 6, wherein the input terminal includes a ground terminal, the input circuit further comprising:
a second filter assembly, a second end of the fuse assembly being connected to a first end of the second filter assembly via the second wiring layer, a second end of the second filter assembly being connected to the ground terminal.
10. The drive control circuit board according to claim 5 or 6, wherein the input circuit further comprises:
a third filter assembly, a second end of the first filter assembly being connected to a first end of the third filter assembly via the second wiring layer, a second end of the third filter assembly being connected to a ground terminal.
11. The drive control circuit board according to claim 7, further comprising:
the first end, the second end and the third end of the boost diode are connected to a high-voltage bus, the first end and the third end of the boost diode are connected to the second end of the boost inductor, and the second end of the boost diode is connected to the first end of the capacitive element;
and a first end of the switching device is connected to the high-voltage bus and connected to a second end of the boost inductor, and a second end of the switching device is connected to the low-voltage bus and connected to a second end of the capacitive element.
12. An air conditioner, comprising:
the drive control circuit board according to any one of claims 1 to 11;
a motor load connected to the drive control circuit board, the drive control circuit board configured to control operation of the motor load.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911053543.9A CN110736250B (en) | 2019-10-31 | 2019-10-31 | Drive control circuit board and air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911053543.9A CN110736250B (en) | 2019-10-31 | 2019-10-31 | Drive control circuit board and air conditioner |
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| CN110736250B true CN110736250B (en) | 2021-04-23 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111313685B (en) * | 2020-03-25 | 2021-10-08 | 广州华凌制冷设备有限公司 | Drive control module and vehicle-mounted air conditioner |
| CN111313658B (en) * | 2020-03-25 | 2021-06-29 | 广州华凌制冷设备有限公司 | Drive control module and vehicle-mounted air conditioner |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4023249B2 (en) * | 2002-07-25 | 2007-12-19 | ダイキン工業株式会社 | Compressor internal state estimation device and air conditioner |
| CN201323530Y (en) * | 2008-12-09 | 2009-10-07 | 深圳迈瑞生物医疗电子股份有限公司 | Rectifier diode circuit for switching frequency |
| CN101600281B (en) * | 2009-07-24 | 2012-06-27 | 上海艾为电子技术有限公司 | Light modulation control drive control device, system and method |
| CN101742789A (en) * | 2009-12-29 | 2010-06-16 | 浙江阳光集团股份有限公司 | Constant power electronic ballast |
| CN104038075A (en) * | 2014-06-10 | 2014-09-10 | 上海成名电气有限公司 | Novel frequency converter |
| CN104469590B (en) * | 2014-12-22 | 2018-01-02 | 青岛歌尔声学科技有限公司 | A kind of anti-electromagnetic interference head circuit plate, earphone and method |
| CN109873553A (en) * | 2019-03-29 | 2019-06-11 | 浙江鲲悟科技有限公司 | The common-mode interference suppression circuit of air-conditioning |
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