CN211405885U - Air conditioner electric control board rectifying circuit and air conditioner thereof - Google Patents
Air conditioner electric control board rectifying circuit and air conditioner thereof Download PDFInfo
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- CN211405885U CN211405885U CN201922204067.8U CN201922204067U CN211405885U CN 211405885 U CN211405885 U CN 211405885U CN 201922204067 U CN201922204067 U CN 201922204067U CN 211405885 U CN211405885 U CN 211405885U
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Abstract
The utility model provides an automatically controlled board rectifier circuit of air conditioner, include: the rectifier bridge comprises at least three rectifier bridges, wherein the rectifier bridges are connected in parallel, a first input end of each rectifier bridge is connected with a live wire, a second input end of each rectifier bridge is connected with a zero wire, an anode output end of each rectifier bridge is connected with an input end of a load, and a cathode output end of each rectifier bridge is connected with an output end of the load. The utility model has the advantages that: through the parallel use of at least three rectifier bridges, under the same output power, compared with the use of a bridge stack, the rectifier bridge has the advantages of better cost and heat dissipation, and can achieve the technical effects of reducing the manufacturing cost and reducing the heat dissipation.
Description
Technical Field
The utility model relates to an air conditioning circuit field, in particular to automatically controlled board rectifier circuit of air conditioner and air conditioner thereof.
Background
At present, in an air conditioning circuit, a rectifier circuit is a frequently used circuit, power ranges from several watts to several kilowatts, but the larger the power is, the larger the current is, the higher the heat generation is, and the higher the cost of a bridge stack is.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an automatically controlled board rectifier circuit of air conditioner and air conditioner thereof aims at solving the higher rectifier bridge of cost that uses or additionally increases the heat dissipation device and brings costly technical problem.
The utility model provides an automatically controlled board rectifier circuit of air conditioner, include: the rectifier bridge comprises at least three rectifier bridges, wherein the rectifier bridges are connected in parallel, a first input end of each rectifier bridge is connected with a live wire, a second input end of each rectifier bridge is connected with a zero wire, an anode output end of each rectifier bridge is connected with an input end of a load, and a cathode output end of each rectifier bridge is connected with an output end of the load.
Furthermore, each rectifier bridge is a bridge stack structure of the same type.
Furthermore, the load further comprises a first capacitor, wherein the first end of the first capacitor is connected with the input end of the load, and the second end of the first capacitor is connected with the output end of the load.
Further, the first capacitor is an electrolytic capacitor.
Further, the capacitance of the first capacitor comprises 100 uf.
Furthermore, the load further comprises a second capacitor, wherein the first end of the second capacitor is connected with the input end of the load, and the second end of the second capacitor is connected with the output end of the load.
Further, the second capacitor is a high-voltage ceramic capacitor.
Further, the capacity of the second capacitor comprises 0.1 uf.
Further, the negative output end of the first rectifier bridge is also grounded.
The utility model also provides an air conditioner, including the aforesaid automatically controlled board rectifier circuit of air conditioner.
The utility model has the advantages that: through the parallel use of at least three rectifier bridges, under the same output power, compared with the use of a bridge stack, the rectifier bridge has the advantages of better cost and heat dissipation, and can achieve the technical effects of reducing the manufacturing cost and reducing the heat dissipation.
Drawings
Fig. 1 is a circuit diagram of a rectification circuit of an electric control board of an air conditioner according to an embodiment of the present invention.
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is also changed accordingly, and the connection may be a direct connection or an indirect connection.
The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and B, may mean: a exists alone, A and B exist simultaneously, and B exists alone.
In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1, the utility model provides an automatically controlled board rectifier circuit of air conditioner, include: the three-phase rectifier bridge comprises at least three rectifier bridges, wherein the rectifier bridges are connected in parallel, the first input end of each rectifier bridge is connected with a live wire L, the second input end of each rectifier bridge is connected with a zero wire N, the positive output end of each rectifier bridge is connected with the input end of a load R1, and the negative output end of each rectifier bridge is connected with the output end of a load R1. In a particular embodiment, the method comprises the following steps: a first rectifier bridge DB1, a second rectifier bridge DB2, and a third rectifier bridge DB 3; the first input end of a first rectifier bridge DB1 is connected with the live wire L, the first input end of a second rectifier bridge DB2 is connected with the live wire L, the first input end of a third rectifier bridge DB3 is connected with the live wire L, the second input end of the first rectifier bridge DB1 is connected with the zero line N, the second input end of the second rectifier bridge DB2 is connected with the zero line N, the second input end of the third rectifier bridge DB3 is connected with the zero line N, the positive output end of the first rectifier bridge DB1 is connected with the input end of the load R1, the negative output end of the first rectifier bridge DB1 is connected with the output end of the load R1, the positive output end of the second rectifier bridge DB2 is connected with the input end of the load R1, the negative output end of the second rectifier bridge DB2 is connected with the output end of the load R1, the positive output end of the third rectifier bridge DB3 is connected with the input end of the load R1, and the negative output end of the third rectifier bridge DB3 is connected with the load R1.
In this embodiment, the first rectifier bridge DB1, the second rectifier bridge DB2, and the third rectifier bridge DB3 are used in parallel, so that the cost and the heat dissipation advantage are better than those of a single bridge stack under the same output power, and the technical effects of reducing the manufacturing cost and reducing the heat dissipation can be achieved.
In this embodiment, the first rectifier bridge DB1 includes a first diode d1, a second diode d2, a third diode d3, and a fourth diode d4, the negative terminal of the first diode d1 is connected to the live line L and the positive terminal of the second diode d2, the negative terminal of the second diode d2 is connected to the input terminal of the load R1 and the negative terminal of the third diode d3, the positive terminal of the third diode d3 is connected to the negative terminal of the fourth diode d4 and the neutral line N, and the positive terminal of the fourth diode d4 is connected to the output terminal of the load R1 and the positive terminal of the first diode d 1.
In this embodiment, the first rectifier bridge DB1 includes a first diode d1, a second diode d2, a third diode d3, and a fourth diode d4, and the ac voltage in the live line L and the neutral line N can be converted into the dc voltage through the first rectifier bridge DB1 by the above-mentioned connection manner.
In this embodiment, the second rectifier bridge DB2 includes a fifth diode d5, a sixth diode d6, a seventh diode d7, and an eighth diode d8, the negative terminal of the fifth diode d5 is connected to the positive terminals of the live line L and the sixth diode d6, the negative terminal of the sixth diode d6 is connected to the input terminal of the load R1 and the negative terminal of the seventh diode d7, the positive terminal of the seventh diode d7 is connected to the negative terminal of the eighth diode d8 and the neutral line N, and the positive terminal of the eighth diode d8 is connected to the output terminal of the load R1 and the positive terminal of the fifth diode d 5.
In this embodiment, the second rectifier bridge DB2 includes a fifth diode d5, a sixth diode d6, a seventh diode d7 and an eighth diode d8, and the ac voltage in the live line L and the neutral line N can be converted into the dc voltage through the second rectifier bridge DB2 by the above-mentioned connection manner.
In this embodiment, the third rectifier bridge DB3 includes a ninth diode d9, a twelfth diode d10, an eleventh diode d11, and a twelfth diode d12, the negative terminals of the ninth diode d9 are respectively connected to the positive terminals of the live line L and the twelfth diode d10, the negative terminal of the twelfth diode d10 is respectively connected to the input terminal of the load R1 and the negative terminal of the eleventh diode d11, the positive terminal of the eleventh diode d11 is respectively connected to the negative terminal of the twelfth diode d12 and the neutral line N, and the positive terminal of the twelfth diode d12 is respectively connected to the output terminal of the load R1 and the positive terminal of the ninth diode d 9.
In this embodiment, the third rectifier bridge DB3 includes a ninth diode d9, a twelfth diode d10, an eleventh diode d11 and a twelfth diode d12, and the ac voltage in the live line L and the neutral line N can be converted into the dc voltage through the third rectifier bridge DB3 by the above-mentioned connection manner.
In this embodiment, the first capacitor C1 is further included, a first end of the first capacitor C1 is connected to the input terminal of the load R1, and a second end of the first capacitor C1 is connected to the output terminal of the load R1. The first capacitor C1 is an electrolytic capacitor. Can carry out filtering and stabilize output voltage to the voltage after the rectifier bridge through electrolytic capacitor, can effectually reduce the ripple, make the voltage at loading load R1 both ends more stable.
In this embodiment, the second capacitor C2 is further included, a first end of the second capacitor C2 is connected to the input terminal of the load R1, and a second end of the second capacitor C2 is connected to the output terminal of the load R1. The second capacitor C2 is a high-voltage ceramic capacitor. The high-voltage ceramic capacitor can filter the spike wave with higher frequency, reduce noise and remove the influence of the spike wave on the load R1.
In one embodiment, the live wire and the zero wire are both connected with a mains supply, and the rated voltage of the live wire and the zero wire is 220V, so that the first capacitor can be set to be a 100uf high-voltage electrolytic capacitor, and compared with high-voltage electrolytic capacitors with other capacities, the 100uf high-voltage electrolytic capacitor is set here, so that the production cost can be reduced while the filtering effect is ensured, the second capacitor is set to be a 0.1uf high-voltage ceramic capacitor, and compared with high-voltage ceramic capacitors with other capacities, the 0.1uf high-voltage ceramic capacitor is set here, so that the production cost can be reduced under the condition that the filtering of spike waves with higher frequency can be ensured. In addition, compared with the situation that only one capacitor is arranged in the prior art, the high-voltage ceramic capacitor and the high-voltage electrolytic capacitor are arranged, so that the output voltage can be well filtered, the amplitude of waves is reduced, and the output voltage effect and the electricity utilization safety are guaranteed.
In this embodiment, the negative output terminal of the first rectifier bridge DB1 is also grounded (GND in fig. 1). In order to ensure the safety of electricity, the negative output end of the first rectifier bridge DB1 is grounded. Similarly, the second rectifier bridge DB2 and the third rectifier bridge DB3 may also be grounded, and it should be understood that since the negative output terminal of the first rectifier bridge DB1, the negative output terminal of the second rectifier bridge DB2 and the negative output terminal of the third rectifier bridge DB3 are all connected to the same load R1, grounding the negative output terminal of the first rectifier bridge DB1 is equivalent to grounding the negative output terminal of the first rectifier bridge DB1, the negative output terminal of the second rectifier bridge DB2 and the negative output terminal of the third rectifier bridge DB 3.
The utility model also provides an air conditioner, including the aforesaid automatically controlled board rectifier circuit of air conditioner.
The utility model has the advantages that: through the parallel use of at least three rectifier bridges, under the same output power, compared with the use of a bridge stack, the rectifier bridge has the advantages of better cost and heat dissipation, and can achieve the technical effects of reducing the manufacturing cost and reducing the heat dissipation.
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 scope of the claims of the present invention.
Claims (10)
1. The utility model provides an automatically controlled board rectifier circuit of air conditioner which characterized in that includes: the rectifier bridge comprises at least three rectifier bridges, wherein the rectifier bridges are connected in parallel, a first input end of each rectifier bridge is connected with a live wire, a second input end of each rectifier bridge is connected with a zero wire, an anode output end of each rectifier bridge is connected with an input end of a load, and a cathode output end of each rectifier bridge is connected with an output end of the load.
2. The rectifier circuit of an electric control board of an air conditioner as claimed in claim 1, wherein each of the rectifier bridges is a bridge stack structure of the same type.
3. The rectifier circuit of claim 1, further comprising a first capacitor, wherein a first end of the first capacitor is connected to an input terminal of the load, and a second end of the first capacitor is connected to an output terminal of the load.
4. The rectifier circuit of the electric control board of the air conditioner as claimed in claim 3, wherein the first capacitor is an electrolytic capacitor.
5. The rectifier circuit of claim 3, wherein the capacity of the first capacitor comprises 100 uf.
6. The rectifier circuit of claim 1, further comprising a second capacitor, wherein a first terminal of the second capacitor is connected to an input terminal of the load, and a second terminal of the second capacitor is connected to an output terminal of the load.
7. The rectifier circuit of the electric control board of the air conditioner as claimed in claim 6, wherein the second capacitor is a high voltage ceramic capacitor.
8. The rectifier circuit of claim 6, wherein the capacity of the second capacitor comprises 0.1 uf.
9. The rectifier circuit of an electric control board of an air conditioner as claimed in claim 1, wherein the negative output end of the first rectifier bridge is also grounded.
10. An air conditioner, characterized by comprising the rectifier circuit of the electric control board of the air conditioner as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922204067.8U CN211405885U (en) | 2019-12-09 | 2019-12-09 | Air conditioner electric control board rectifying circuit and air conditioner thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922204067.8U CN211405885U (en) | 2019-12-09 | 2019-12-09 | Air conditioner electric control board rectifying circuit and air conditioner thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211405885U true CN211405885U (en) | 2020-09-01 |
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ID=72214266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922204067.8U Expired - Fee Related CN211405885U (en) | 2019-12-09 | 2019-12-09 | Air conditioner electric control board rectifying circuit and air conditioner thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211405885U (en) |
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2019
- 2019-12-09 CN CN201922204067.8U patent/CN211405885U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200901 Termination date: 20211209 |
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| CF01 | Termination of patent right due to non-payment of annual fee |