CN110650581A - Drive control circuit board and air conditioner - Google Patents
Drive control circuit board and air conditioner Download PDFInfo
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- CN110650581A CN110650581A CN201910900799.2A CN201910900799A CN110650581A CN 110650581 A CN110650581 A CN 110650581A CN 201910900799 A CN201910900799 A CN 201910900799A CN 110650581 A CN110650581 A CN 110650581A
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- circuit board
- control circuit
- component
- drive control
- wiring layer
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0213—Electrical arrangements not otherwise provided for
- H05K1/0237—High frequency adaptations
- H05K1/0245—Lay-out of balanced signal pairs, e.g. differential lines or twisted lines
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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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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
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- General Engineering & Computer Science (AREA)
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Abstract
The invention provides a drive control circuit board and an air conditioner, wherein the drive control circuit board comprises: a substrate; the two input terminals are arranged on the substrate and used for accessing power supply signals; the circuit comprises a safety component, wherein a connecting line between two terminals of the safety component and a connecting line between two input terminals are arranged in parallel, one path of power supply signal is connected to the first end of the safety component through a first wiring layer of a substrate, the other path of power supply signal is connected to the first end of a first filtering component through a second wiring layer of the substrate, and an insulating layer is arranged between the first wiring layer and the second wiring layer. By the technical scheme of the invention, the disturbance power can be improved by optimizing the layout of the circuit board and the position of the safety component on the basis of not increasing the number of devices and the cost of the devices, the electromagnetic interference generated or transmitted by a circuit board circuit is reduced, and the product can easily meet the requirement of an electromagnetic interference standard.
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 fuse is generally used in an electric control board of an air conditioner as an overcurrent protection device of a product, and a fuse is placed according to a relatively random placement scheme and basically according to how well a wire is routed.
However, the area included by the input line L and the input line N is easily too large due to the random placement of the fuse, that is, the area of the coupling loop is too large, so that the electromagnetic interference emitted by other parts of the coupling circuit is very easy to reach the outside of the product directly through the power supply line, and the electromagnetic interference exceeds the standard, that is, the product does not meet the electromagnetic interference standard.
Moreover, any discussion of the prior art throughout the specification is not an admission that the prior art is necessarily known to a person of ordinary skill in the art, and any discussion of the prior art throughout the specification is not an admission that the prior art is necessarily widely known or forms part of common general knowledge in the field.
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, an object of the present invention is to provide a drive control circuit board.
Another object of the present invention is to provide an air conditioner.
In order to achieve the above object, according to an embodiment of a first aspect of the present invention, there is provided a drive control circuit board including: a substrate; the two input terminals are arranged on the substrate and used for accessing power supply signals; the circuit comprises a safety component, wherein a connecting line between two terminals of the safety component and a connecting line between two input terminals are arranged in parallel, one path of power supply signal is connected to the first end of the safety component through a first wiring layer of a substrate, the other path of power supply signal is connected to the first end of a first filtering component through a second wiring layer of the substrate, and an insulating layer is arranged between the first wiring layer and the second wiring layer.
In the technical scheme, the connecting line between the two terminals of the safety component and the connecting line between the two input terminals are placed in parallel, the input terminals, the safety component and the first filter component are arranged according to the above mode, and the power supply signal is accessed in a form similar to a twisted pair, so that the enclosed area between a power supply line and the safety component is reduced, the electromagnetic interference of the driving control circuit board on external electric appliances is reduced, meanwhile, the electromagnetic interference between electronic elements on the circuit board is also reduced, and the driving control circuit board can be simply referred to as the circuit board in the context.
Specifically, two paths of power supply signal routing are arranged in different routing layers, namely, one path of power supply signal is connected to the first end of the safety component through the first routing layer of the substrate, the other path of power supply signal is connected to the first end of the first filtering component through the second routing layer of the substrate, an insulating layer is arranged between the first routing layer and the second routing layer and is isolated from wires of other power supply signals and the safety component through the insulating layer, and the routing mode of the two paths of power supply signal routing and the preservation component is similar to a twisted pair, so that on one hand, the enclosed area between the input terminal and the safety component is minimum, on the other hand, interference signals generated by coupling between the power supply signal routing and the safety component routing can be mutually counteracted, and the interference signals of the input terminal accessing the power supply signal to other elements and external electrical appliances on the circuit board are reduced, the interference of other elements on the circuit board to power supply signals and a power grid system can be obviously reduced, and the reliability and the anti-interference capability of the drive control circuit board are improved.
Wherein, power supply signal can be power frequency alternating current signal, and an input terminal inserts the live wire signal, and another input terminal inserts the zero line signal, still sets up an input terminal access ground wire signal in addition, ground terminal promptly.
In any one of the above technical solutions, the driving control circuit board further includes: and the second end of the insurance component is connected to the second end of the first filtering component through the first wiring layer and is used for filtering electromagnetic interference signals flowing through the insurance component.
In the technical scheme, the second end of the safety component is connected to the second end of the first filter component through the first wiring layer, and the electromagnetic interference signals flowing through the safety component are filtered through the first filter 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 of the above technical solutions, a connection line between two terminals of the first filter component and a connection line between two terminals of the fuse component are arranged in parallel, wherein the first end of the first filter component is arranged near the second end of the fuse component, and the second end of the first filter component is arranged near the first end of the fuse component.
In the technical scheme, the first end of the first filtering component is arranged close to the second end of the insurance component, the second end of the first filtering component is arranged close to the first end of the insurance component, and on the whole, the connecting line between the two terminals of the first filtering component and the connecting line between the two terminals of the insurance component are kept in a parallel or approximately parallel state as far as possible, so that the enclosed area of the first filtering component and the insurance component is reduced as far as possible, and the coupling effect on electromagnetic interference is reduced.
In any one of the above technical solutions, the driving control circuit board further includes: the common-mode inductance assembly comprises a first inductance coil and a second inductance coil which are in a common mode, and the inductance wiring direction of the common-mode inductance assembly is perpendicular to the connecting line between the two input terminals of the first filtering assembly.
In the technical scheme, the common-mode inductance assembly comprises two inductance coils which respectively correspond to two power supply signals, the wiring direction of the inductance coils is perpendicular to the connecting line between the two terminals of the first filtering assembly, the enclosed area between the inductance coils and the filtering assembly is reduced as much as possible, and in addition, interference signals generated by the inductance coils and interference signals generated by the first filtering assembly are reduced.
In any of the above technical solutions, the first end of the first filter assembly is connected to the input end of the second inductor coil by the second wiring layer, and the second end of the first filter assembly is connected to the input end of the first inductor coil by the first wiring layer.
In the technical scheme, the wiring position between the filter assembly and the common-mode inductance assembly is determined according to the current flowing direction, the two wiring terminals of the first filter assembly are respectively positioned in different wiring layers of the circuit board, the wires positioned in the different wiring layers can be overlapped and also can be arranged in parallel, the loop area between the wires is reduced as much as possible, the coupling of electromagnetic interference to the outside 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 the relay, the first inductance coil is connected to the first end of the relay through the first wiring layer, the output end of the relay is connected to the first end of the rectifier, the second inductance coil is connected to the second 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 one of the above technical solutions, the driving control circuit board further includes: the power supply signal is an alternating current signal, the rectifier is configured to convert the alternating current signal into a direct current signal, and the bus line is configured to carry the direct current signal.
In any one of the above technical solutions, the driving control circuit board 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 one of the above technical solutions, the driving control circuit board 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.
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. The air conditioner has all the beneficial effects of the drive control circuit board in any technical scheme, and the description is omitted.
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 diagram of a drive control circuit board according to one embodiment of the invention;
FIG. 2 is a diagram showing disturbance power test of a drive control circuit board in the prior art;
FIG. 3 shows a disturbance power test chart of a drive control board according to another 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:
the circuit board comprises a substrate 100, an input terminal unit 102, a live terminal L, a neutral terminal N, a ground terminal E, a fuse assembly 104, a first end 1042 of the fuse assembly, a second end 1044 of the fuse assembly, a second filter assembly 106, a third filter assembly 108, a first filter assembly 110, a common mode inductor assembly 112, a relay 114, a temperature sensitive resistor 116, a rectifier 118, a fourth filter assembly 120, a fifth filter assembly 122, a sixth filter assembly 124, an electrolytic capacitor 126, a first inductor L1, a second inductor L2, and an alternating current signal AC.
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 first embodiment is as follows:
fig. 1 shows a schematic diagram of a drive control circuit board according to an embodiment of the present invention.
As shown in fig. 1, a drive control circuit board according to an embodiment of the present invention includes: the two input terminals and the fuse assembly 104 of the substrate 100 are specifically characterized as follows:
two input terminals are provided on the substrate 100 for receiving a power supply signal.
The line between the two terminals of the fuse block 104 is arranged in parallel with the line between the two input terminals.
One of the power supply signals is connected to the first terminal 1042 of the fuse element by the first wiring layer of the substrate 100.
The other power supply signal is connected to the first end of the first filter assembly 110 through a second wiring layer of the substrate 100, wherein an insulating layer is disposed between the first wiring layer and the second wiring layer.
In the technical scheme, a connecting line between two terminals of the safety component 104 and a connecting line between two input terminals are placed in parallel, and the input terminals, the safety component 104 and the first filter component 110 are arranged in the above manner, and a power supply signal is accessed in a form similar to a twisted pair, so that the enclosed area between a power supply line and the safety component 104 is reduced, the electromagnetic interference of a driving control circuit board on external electrical appliances is reduced, meanwhile, the electromagnetic interference between electronic elements on the circuit board is also reduced, and the driving control circuit board can be simply referred to as a circuit board in the context.
Specifically, the two paths of power supply signals are located in different wiring layers, that is, one path of power supply signal is connected from the first wiring layer of the substrate 100 to the first end 1042 of the safety component, the other path of power supply signal is connected from the second wiring layer of the substrate 100 to the first end of the first filter component 110, an insulating layer is disposed between the first wiring layer and the second wiring layer, and is isolated from the wires of the other power supply signals and the safety component 104 by the insulating layer, and the routing manner of the two paths of power supply signals and the freshness protection component is similar to a twisted pair, so that on one hand, the enclosed area between the input terminal and the safety component 104 is minimized, and on the other hand, interference signals generated by coupling between the power supply signal paths and the safety component 104 can cancel each other, thereby not only reducing interference signals of the input terminal accessing the power supply signals to other elements and external electrical appliances on the, the interference of other elements on the circuit board to power supply signals and a power grid system can be obviously reduced, and the reliability and the anti-interference capability of the drive control circuit board are improved.
The power supply signal may be a power frequency alternating current signal AC, the input terminal unit 102 includes a live line terminal L connected to the live line signal, another neutral line terminal N connected to the neutral line signal, and an input terminal connected to a ground line signal, i.e., a ground terminal E.
In any of the above technical solutions, the driving control circuit board further includes a first filtering component 110.
The second terminal 1044 of the fuse element is connected to the second terminal of the first filter element 110 by the first wiring layer, for filtering the electromagnetic interference signal flowing through the fuse element 104.
In this technical solution, the second end 1044 of the safety component is connected to the second end of the first filtering component 110 through the first wiring layer, and the electromagnetic interference signal flowing through the safety component 104 is filtered by the first filtering component 110, so that the electromagnetic interference signal on the circuit board is further reduced, and the EMC (electromagnetic compatibility) performance of the circuit board is improved.
In any of the above solutions, the connection line between the two terminals of the first filtering component 110 and the connection line between the two terminals of the fuse component 104 are arranged in parallel.
The first end 1044 of the first filter element 110 is disposed close to the second end 1042 of the fuse element, and the second end 1044 of the first filter element 110 is disposed close to the first end 1042 of the fuse element.
In this technical solution, the first end 1044 of the first filter component 110 is close to the safety component, and the second end 1042 of the first filter component 110 is close to the safety component, so as to make the connection line between the two terminals of the first filter component 110 and the connection line between the two terminals of the safety component 104 keep parallel or nearly parallel as much as possible, so as to make the enclosed area between the first filter component 110 and the safety component 104 as much as possible, and reduce the coupling effect on the electromagnetic interference.
In any of the above solutions, the driving control circuit board further includes a common mode inductance component 112.
The common mode inductance assembly 112 includes a first inductor L1 and a second inductor L2 in a common mode, and an inductance wiring direction of the common mode inductance assembly 112 is perpendicular to a connection line between two input terminals of the first filter assembly 110.
In the technical solution, the common mode inductance assembly 112 includes two inductance coils respectively corresponding to two power supply signals, the wiring direction of the inductance coils is perpendicular to the connection line between the two terminals of the first filter assembly 110, so as to reduce the enclosed area between the inductance coils and the filter assembly as much as possible, and the interference signal generated by the inductance coils and the interference signal generated by the first filter assembly 110.
In any of the above solutions, the first terminal of the first filter assembly 110 is connected to the input terminal of the second inductor L2 by the second wiring layer.
In any of the above solutions, the second terminal of the first filter assembly 110 is connected to the input terminal of the first inductor L1 by the first wiring layer.
In the technical scheme, the wiring position between the filter component and the common mode inductance component 112 is determined according to the current flowing direction, the two wiring terminals of the first filter component 110 are respectively located in different wiring layers of the circuit board, and the wires located in the different wiring layers can be placed in an overlapping manner or in a parallel manner, so that the loop area between the wires is reduced as much as possible, the coupling of electromagnetic interference to the outside is reduced, and the EMC performance of the circuit is improved.
In any of the above technical solutions, the driving control circuit board further includes a relay 114.
The first inductor L1 is connected to the first terminal of the relay 114 by the first wiring layer, the output terminal of the relay 114 is connected to the first terminal of the rectifier 118, and the second inductor L2 is connected to the second terminal of the rectifier 118 by the second wiring layer.
Wherein the output of the relay 114 is connected to the busbar of the load.
In the technical scheme, a first end of the relay 114 is connected with the first inductance coil L1 through a first wiring layer, an output end of the relay 114 is connected to a first end of the rectifier 118, a second end of the rectifier 118 is connected with the second inductance coil L2 through a second wiring layer, and two inductance coils of the common mode inductance assembly 112 are connected with the relay 114 and the rectifier 118 through different wiring layers, so that the routing 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.
The relay 114 is usually connected in parallel with a temperature-sensitive resistor 116, and the temperature-sensitive resistor 116 is usually a positive temperature coefficient temperature-sensitive resistor or a negative temperature coefficient temperature-sensitive resistor.
In any one of the above technical solutions, the driving control circuit board further includes: the supply signal is an alternating current signal AC, the rectifier 118 is configured to convert the alternating current signal AC to a direct current signal, and the buss lines are configured to carry the direct current signal.
In any one of the above technical solutions, the driving control circuit board further includes: in the second filter assembly 106, the second end 1044 of the fuse assembly is connected to the first end of the second filter assembly 106 through the second wiring layer, and the second end of the second filter assembly 106 is connected to the ground terminal E.
In the technical scheme, the wires between the second filter component 106 and the fuse component 104 and the wires between the first filter component 110 and the fuse component 104 are distributed in different wiring layers, on one hand, the total area of a loop formed by the wires is reduced, on the other hand, the wires 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 any one of the above technical solutions, the driving control circuit board further includes: a third filter component 108, a second end of the first filter component 110 is connected to a first end of the third filter component 108 via the second wiring layer, and a second end of the third filter component 108 is connected to the ground terminal E.
In the technical scheme, the second end of the first filter component 110 is connected to the third filter component 108 from the second wiring layer, and the wiring of the first filter component 110 on the first wiring layer and the wiring of the first filter component 110 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 addition, the drive control circuit board further includes: the fourth filtering component 120, the fifth filtering component 122, the sixth filtering component 124 and the electrolytic capacitor 126 have the following specific connection relationship and operation principle:
(1) the fourth filtering component 120 is connected across the output end of the common mode inductor 112, and is configured to filter the electrical signal output by the common mode inductor 112.
(2) The fifth filtering component 122 and the sixth filtering component 124 are connected in series and interposed between the fourth filtering component 120 and the rectifier 118.
(3) The electrolytic capacitor 126 performs 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.
As shown in figure 2, the arrangement scheme of the invention is not adopted to arrange the safety component, the local margin of the disturbance power at 33MHz is only 2.5dB, and the disturbance power test of 300 MHz-1000 MHz needs to be additionally tested.
As shown in FIG. 3, when the arrangement scheme of the invention is adopted to arrange the safety components, the residual quantity of the position with disturbance power of 33MHz reaches 9 dB.
As shown in fig. 4, the air conditioner 400 according to the embodiment of the present invention includes: the drive control circuit board defined in any one of the above technical solutions; a motor load 402 connected to the drive control circuit board, the drive control circuit board configured to control the operation of the motor load 402
The technical scheme of the invention is explained in detail by combining the attached drawings, and the invention provides a driving control circuit board and an air conditioner.
In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. 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, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or unit must have a specific direction, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description herein, 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 invention. In this specification, 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 is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to 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 (10)
1. A drive control circuit board, comprising:
a substrate;
the two input terminals are arranged on the substrate and used for accessing power supply signals;
a connecting line between two terminals of the fuse component and a connecting line between two input terminals are arranged in parallel, one path of the power supply signal is connected to the first end of the fuse component through a first wiring layer of the substrate, the other path of the power supply signal is connected to the first end of a first filtering component through a second wiring layer of the substrate,
wherein an insulating layer is arranged between the first wiring layer and the second wiring layer.
2. The drive control circuit board according to claim 1, characterized in that the drive control circuit board further comprises:
and the second end of the insurance component is connected to the second end of the first filtering component through the first wiring layer, and is used for filtering electromagnetic interference signals flowing through the insurance component.
3. The drive control circuit board according to claim 2,
a connecting line between the two terminals of the first filter component and a connecting line between the two terminals of the fuse component are arranged in parallel,
the first end of the first filtering component is arranged close to the second end of the insurance component, and the second end of the first filtering component is arranged close to the first end of the insurance component.
4. The drive control circuit board according to claim 3, characterized in that the drive control circuit board further comprises:
the common-mode inductance assembly comprises a first inductance coil and a second inductance coil which are in a common mode, and the inductance wiring direction of the common-mode inductance assembly is perpendicular to a connecting line between two input terminals of the first filtering assembly.
5. The drive control circuit board according to claim 4,
the first end of the first filtering assembly is connected to the input end of the second inductance coil through the second wiring layer, and the second end of the first filtering assembly is connected to the input end of the first inductance coil through the first wiring layer.
6. The drive control circuit board according to claim 5, characterized by further comprising:
a relay, the first inductor being connected to a first end of the relay by the first wiring layer, an output end of the relay being connected to a first end of a rectifier, the second inductor being connected to a second end of the rectifier by the second wiring layer,
wherein the output of the relay is connected to a busbar line of a load.
7. The drive control circuit board according to claim 6, further comprising:
the power supply signal is an alternating current signal, the rectifier is configured to convert the alternating current signal into a direct current signal, and the bus line is configured to carry the direct current signal.
8. The drive control circuit board according to any one of claims 1 to 7, characterized by 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 a ground terminal.
9. The drive control circuit board according to any one of claims 2 to 7, characterized by further comprising:
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.
10. An air conditioner, comprising:
the drive control circuit board according to any one of claims 1 to 9;
a motor load connected to the drive control circuit board, the drive control circuit board configured to control operation of the motor load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910900799.2A CN110650581B (en) | 2019-09-23 | 2019-09-23 | Drive control circuit board and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910900799.2A CN110650581B (en) | 2019-09-23 | 2019-09-23 | Drive control circuit board and air conditioner |
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| CN110650581A true CN110650581A (en) | 2020-01-03 |
| CN110650581B CN110650581B (en) | 2020-11-03 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040144562A1 (en) * | 2003-01-27 | 2004-07-29 | Fujitsu Limited | Printed wiring board |
| US20140145613A1 (en) * | 2012-11-26 | 2014-05-29 | Lucidity Lights, Inc. | Arrangements and methods for triac dimming of gas discharge lamps powered by electronic ballasts |
| CN108317697A (en) * | 2018-04-28 | 2018-07-24 | 广东美的制冷设备有限公司 | Transducer air conditioning circuit board, transducer air conditioning |
| CN108692439A (en) * | 2018-04-28 | 2018-10-23 | 广东美的制冷设备有限公司 | Transducer air conditioning circuit board, transducer air conditioning |
| CN109301141A (en) * | 2018-08-17 | 2019-02-01 | 中航锂电（洛阳）有限公司 | A kind of electrokinetic cell system and a kind of vehicle of light current magnetic disturbance |
| CN110081574A (en) * | 2019-04-30 | 2019-08-02 | 广东美的制冷设备有限公司 | Drive control circuit and air conditioner |
-
2019
- 2019-09-23 CN CN201910900799.2A patent/CN110650581B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040144562A1 (en) * | 2003-01-27 | 2004-07-29 | Fujitsu Limited | Printed wiring board |
| US20140145613A1 (en) * | 2012-11-26 | 2014-05-29 | Lucidity Lights, Inc. | Arrangements and methods for triac dimming of gas discharge lamps powered by electronic ballasts |
| CN108317697A (en) * | 2018-04-28 | 2018-07-24 | 广东美的制冷设备有限公司 | Transducer air conditioning circuit board, transducer air conditioning |
| CN108692439A (en) * | 2018-04-28 | 2018-10-23 | 广东美的制冷设备有限公司 | Transducer air conditioning circuit board, transducer air conditioning |
| CN109301141A (en) * | 2018-08-17 | 2019-02-01 | 中航锂电（洛阳）有限公司 | A kind of electrokinetic cell system and a kind of vehicle of light current magnetic disturbance |
| CN110081574A (en) * | 2019-04-30 | 2019-08-02 | 广东美的制冷设备有限公司 | Drive control circuit and air conditioner |
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| CN110650581B (en) | 2020-11-03 |
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