CN209896893U - Control box for power supply conversion - Google Patents
Control box for power supply conversion Download PDFInfo
- Publication number
- CN209896893U CN209896893U CN201920919036.8U CN201920919036U CN209896893U CN 209896893 U CN209896893 U CN 209896893U CN 201920919036 U CN201920919036 U CN 201920919036U CN 209896893 U CN209896893 U CN 209896893U
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- China
- Prior art keywords
- output
- control box
- end filter
- power conversion
- filter connector
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- Expired - Fee Related
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- Supply And Distribution Of Alternating Current (AREA)
Abstract
The utility model discloses a control box for power conversion, a control box for power conversion constitutes as follows: the PCB comprises an input end filter connector (1), an output end filter connector (2), a PCB assembly (3) and a box body; the input end filter connector (1) and the output end filter connector (2) are respectively electrically connected with the PCB board assembly (3), and the input end filter connector (1), the output end filter connector (2) and the PCB board assembly (3) are respectively connected with the box body. The control box for power supply conversion can play a certain role in inhibiting the interference of alternating current signals. The volume is small, the weight is light, the anti-electromagnetic interference capability is strong, the output performance is good, and the device can be suitable for complex laboratory environments.
Description
Technical Field
The utility model relates to a structural design and the application technology field of control box provide a control box for power conversion very much.
Background
The traditional power supply conversion box is formed by overlapping discrete components, has poor performance and unstable output waveform under a complex electromagnetic environment, is usually large in size and heavy in weight, and is inconvenient in a limited space of a laboratory.
It is highly desirable to have a control box for power conversion that has excellent technical effects.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a control box for power conversion. The volume is small, the weight is light, the anti-electromagnetic interference capability is strong, the output performance is good, and the device can be suitable for complex laboratory environments.
The control box for power supply conversion is composed of the following components: the PCB comprises an input end filter connector 1, an output end filter connector 2, a PCB assembly 3 and a box body; the input end filter connector 1 and the output end filter connector 2 are respectively electrically connected with the PCB board assembly 3, and the input end filter connector 1, the output end filter connector 2 and the PCB board assembly 3 are respectively connected with the box body.
The PCB assembly 3 includes an input port 31, an input filter module 32, a DC-DC power conversion module 33, an output filter module 34, and an output port 35; the input end filter connector 1 is electrically connected with the input end of the DC-DC power conversion module 33 through the input port 31 and the input filter module 32, and the output end filter connector 2 is electrically connected with the output end of the DC-DC power conversion module 33 through the output port 35 and the output filter module 34.
The box body comprises a box cover 41 and a base 42; the cassette housing 41 is attached to a base 42. The base 42 can be used for placing the PCB assembly 3 carrying the power supply module and the peripheral circuit, and the base 42 and the box cover 41 are matched to keep the interior in a sealed state as much as possible, so that not only can the internal components be prevented from being corroded, but also the electromagnetic compatibility effect can be achieved.
The control box for power conversion is further provided with a fuse 5 and a grounding column 6, and the fuse 5 is connected to the grounding column 6.
The DC-DC power conversion module 33 is a core part of the PCB assembly 3, and has the advantages of anti-jamming capability and stable output. The DC-DC power conversion module 33 has a voltage fine adjustment function, and adjusts the voltage through an external resistor to make the power supply output stably around an ideal value. The DC-DC power conversion module 33 is specifically a DC-DC MOR2812D power module, the DC-DC power conversion module 33 converts a 28V DC voltage into a 12V DC voltage without connecting a resistor, but has a trimming function, the output voltage can be adjusted within a certain range by dividing the voltage through an external resistor, the output voltage can reach 10V by calculating 70k of resistor, and the output filter module 34 filters high and low frequency ac signals in the circuit, so that the output port 35 outputs a smooth and clean DC voltage.
The DC-DC power conversion module 33 can output different voltages within a certain voltage range by changing the resistance value of the resistor externally, and is convenient to use; the integrated function is many, saves a lot of interior spaces of box.
A control box for power conversion mainly is applicable to in the laboratory, because uses under the laboratory environment, and electronic components is more on every side, can cause certain degree's signal interference to the control box, only leans on the inside EMI filtering function of power module, and the filtering effect is not good, the utility model discloses all increased the filtering connector at input and output, begin to filter from the output side, make control box output more stable pure voltage. The control box for power supply conversion can play a certain role in inhibiting the interference of alternating current signals. The box body adopts the mode that the all-in-one adds that production efficiency is high and stable in structure, and the erection angle is also reliable and stable.
The utility model discloses a noise interference that filtering connector and input filter module 32 prevent to exchange the high frequency signal production influences the voltage of power module output, and power module adjusts output voltage to 10V through the 70K omega resistance that two resistances constitute.
DC 28V direct current voltage is converted into +/-10 direct current voltage which is output in two ways through two groups of filtering connectors, and the filtering connectors are additionally arranged on the conversion box from the source in consideration of the complex electromagnetic environment in a laboratory, so that the filtering capacitor is welded on the circuit board, and the electromagnetic compatibility is better considered. Has great economic value and social value.
Drawings
FIG. 1 is a schematic view of the interior of a control box for power conversion;
FIG. 2 is a perspective view of a control box for power conversion;
fig. 3 is an electrical schematic of a control box for power conversion.
Detailed Description
Example 1
The control box for power supply conversion is composed of the following components: the PCB comprises an input end filter connector 1, an output end filter connector 2, a PCB assembly 3 and a box body; the input end filter connector 1 and the output end filter connector 2 are respectively electrically connected with the PCB board assembly 3, and the input end filter connector 1, the output end filter connector 2 and the PCB board assembly 3 are respectively connected with the box body.
The PCB assembly 3 includes an input port 31, an input filter module 32, a DC-DC power conversion module 33, an output filter module 34, and an output port 35; the input end filter connector 1 is electrically connected with the input end of the DC-DC power conversion module 33 through the input port 31 and the input filter module 32, and the output end filter connector 2 is electrically connected with the output end of the DC-DC power conversion module 33 through the output port 35 and the output filter module 34.
The box body comprises a box cover 41 and a base 42; the cassette housing 41 is attached to a base 42. The base 42 can be used for placing the PCB assembly 3 carrying the power supply module and the peripheral circuit, and the base 42 and the box cover 41 are matched to keep the interior in a sealed state as much as possible, so that not only can the internal components be prevented from being corroded, but also the electromagnetic compatibility effect can be achieved. The base 42 adopts an all-in-one machining mode, so that the production efficiency is high and the structure is stable. The PCB assembly 3 is fixed by four hexagon bolts in the middle of the base, and the box cover 41 is mounted and then screwed to the four walls of the base 42 through screws, so that the mounting structure can not only increase the sealing property of the box body and prevent the corrosion to back devices, but also meet the requirement of electromagnetic compatibility and effectively shield the electromagnetic interference from the outside.
The control box for power conversion is further provided with a fuse 5 and a grounding column 6, and the fuse 5 is connected to the grounding column 6.
The DC-DC power conversion module 33 is a core part of the PCB assembly 3, and has the advantages of anti-jamming capability and stable output. The DC-DC power conversion module 33 has a voltage fine adjustment function, and adjusts the voltage through an external resistor to make the power supply output stably around an ideal value. The DC-DC power conversion module 33 is specifically a DC-DC MOR2812D power module, the DC-DC power conversion module 33 converts a 28V DC voltage into a 12V DC voltage without connecting a resistor, but has a trimming function, the output voltage can be adjusted within a certain range by dividing the voltage through an external resistor, the output voltage can reach 10V by calculating 70k of resistor, and the output filter module 34 filters high and low frequency ac signals in the circuit, so that the output port 35 outputs a smooth and clean DC voltage.
The DC-DC power conversion module 33 can output different voltages by changing the resistance value of the resistor externally, and is convenient to use; the integrated function is many, saves a lot of interior spaces of box.
A control box for power conversion mainly is applicable to in the laboratory, because uses under the laboratory environment, and electronic components is more on every side, can cause certain degree's signal interference to the control box, only leans on the inside EMI filtering function of power module, and the filtering effect is not good, the utility model discloses all increased the filtering connector at input and output, begin to filter from the output side, make control box output more stable pure voltage. The control box for power supply conversion can play a certain role in inhibiting the interference of alternating current signals. The box body adopts the mode that the all-in-one adds that production efficiency is high and stable in structure, and the erection angle is also reliable and stable.
Noise interference generated by the alternating-current high-frequency signal is prevented from influencing the voltage output by the power supply module through the filter connector and the input filter module 32, and the power supply module adjusts the output voltage to 10V through a 70K omega resistor formed by two resistors.
DC 28V direct current voltage is converted into +/-10 direct current voltage which is output in two ways through two groups of filtering connectors, and the filtering connectors are additionally arranged on the conversion box from the source in consideration of the complex electromagnetic environment in a laboratory, so that the filtering capacitor is welded on the circuit board, and the electromagnetic compatibility is better considered. Has great economic value and social value.
The principle and implementation mode of the present design are explained by applying specific examples, and the description of the above examples is only used to help understanding the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (4)
1. A control box for power conversion, characterized by: the control box for power supply conversion is composed of the following components: the PCB comprises an input end filter connector (1), an output end filter connector (2), a PCB assembly (3) and a box body; the input end filter connector (1) and the output end filter connector (2) are respectively electrically connected with the PCB board assembly (3), and the input end filter connector (1), the output end filter connector (2) and the PCB board assembly (3) are respectively connected with the box body.
2. A control box for power conversion according to claim 1, wherein: the PCB assembly (3) comprises an input port (31), an input filtering module (32), a DC-DC power conversion module (33), an output filtering module (34) and an output port (35); the input end filter connector (1) is electrically connected with the input end of the DC-DC power conversion module (33) through the input port (31) and the input filter module (32), and the output end filter connector (2) is electrically connected with the output end of the DC-DC power conversion module (33) through the output port (35) and the output filter module (34).
3. A control box for power conversion according to claim 2, wherein: the box body comprises a box cover (41) and a base (42); the box cover (41) is connected to the base (42).
4. A control box for power conversion according to claim 3, wherein: the control box for power conversion is further provided with a fuse (5) and a grounding column (6), and the fuse (5) is connected to the grounding column (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920919036.8U CN209896893U (en) | 2019-06-19 | 2019-06-19 | Control box for power supply conversion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920919036.8U CN209896893U (en) | 2019-06-19 | 2019-06-19 | Control box for power supply conversion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209896893U true CN209896893U (en) | 2020-01-03 |
Family
ID=69021338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920919036.8U Expired - Fee Related CN209896893U (en) | 2019-06-19 | 2019-06-19 | Control box for power supply conversion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209896893U (en) |
-
2019
- 2019-06-19 CN CN201920919036.8U patent/CN209896893U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200103 |
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| CF01 | Termination of patent right due to non-payment of annual fee |