CN216312924U - Voltage converter - Google Patents
Voltage converter Download PDFInfo
- Publication number
- CN216312924U CN216312924U CN202120438987.0U CN202120438987U CN216312924U CN 216312924 U CN216312924 U CN 216312924U CN 202120438987 U CN202120438987 U CN 202120438987U CN 216312924 U CN216312924 U CN 216312924U
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- Prior art keywords
- voltage conversion
- filter
- load
- conversion device
- capacitor plate
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 25
- 238000002955 isolation Methods 0.000 claims abstract description 24
- 238000001914 filtration Methods 0.000 claims abstract description 16
- 230000000694 effects Effects 0.000 claims abstract description 9
- 239000003990 capacitor Substances 0.000 claims description 23
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 18
- 229910052802 copper Inorganic materials 0.000 claims description 18
- 239000010949 copper Substances 0.000 claims description 18
- 230000005540 biological transmission Effects 0.000 claims description 15
- 238000003032 molecular docking Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The utility model discloses a voltage conversion device, and relates to the technical field of vehicle-mounted chargers for electric vehicles. The device specifically comprises an isolation cover which is used for accommodating a load and has an electromagnetic shielding effect, and a filtering device which is arranged on the outer side of the isolation cover and used for filtering an output line of the load. The aim is to simplify the installation structure of the filter and reduce the production cost while avoiding the electromagnetic interference on the filter.
Description
Technical Field
The utility model relates to the technical field of vehicle-mounted chargers for electric vehicles, in particular to a voltage conversion device.
Background
In the electric automobile, a vehicle-mounted charger, a voltage converter or a product formed by integrating the vehicle-mounted charger and the voltage converter are important components. The filter is an important component of a vehicle-mounted charger and a voltage converter. Since the filter is very susceptible to electromagnetic interference, good electromagnetic protection measures are required to ensure stable operation of the filter.
At present, filters of voltage conversion devices are all installed inside the voltage conversion devices, and in order to avoid electromagnetic interference of loads inside the voltage conversion devices to the filters, metal shielding shells are often arranged outside the filters to isolate the electromagnetic interference. However, since the metal shielding case is disposed outside the filter, when the filter is installed, the output line of the filter needs to sequentially pass through the isolation cover of the voltage conversion device and the metal shielding case of the filter, which results in a complex installation structure and increases the production cost.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a voltage conversion device, which aims to simplify the installation structure of a filter and reduce the production cost while avoiding the electromagnetic interference on the filter.
In order to achieve the above object, the present invention provides a voltage conversion device, which includes an isolation cover for accommodating a load and having an electromagnetic shielding effect, and a filter device disposed outside the isolation cover and used for filtering an output line of the load, wherein the filter device includes a wiring copper bar having one end connected to the output line of the load and the other end connected to a power transmission line, and a filter capacitor plate having one terminal electrically connected to the wiring copper bar.
In an embodiment of the present application, the wiring copper bar includes: one end of the first connecting part penetrates through the isolation cover to be connected with an output line of the load, and the other end of the first connecting part is connected with a power transmission line; and
and the second connecting part is arranged on one side of the first connecting part and used for connecting the first connecting part with the filter capacitor plate and supporting the first connecting part at the top of the filter capacitor plate.
In an embodiment of the present application, the first connecting portion is bent toward one end of the isolation cover to form a step shape that can be inserted into the isolation cover.
In an embodiment of the application, a docking stud matched with the power transmission line is arranged at one end of the first connecting portion connected with the power transmission line.
In an embodiment of the present application, the second connection portion is L-shaped.
In an embodiment of the present application, the other terminal of the filter capacitor plate is grounded.
In an embodiment of the present application, a mounting seat is disposed on an outer side wall of the isolation cover, and the filtering device is fixed to the mounting seat.
In an embodiment of the application, the voltage conversion device is an onboard charger or a voltage converter or a device formed by integrating an onboard charger and a voltage converter.
The technical scheme has the following advantages: install filter equipment in the outside of cage, utilize the electromagnetic shield effect that the self of cage has, avoid the electromagnetism that cage internal load produced to the influence that filter equipment produced, need not to set up the cage alone again to filter equipment, simplified the mounting structure of wave filter when guaranteeing that filter equipment avoids electromagnetic interference, reduced manufacturing cost.
Drawings
The utility model is described in detail below with reference to specific embodiments and the attached drawing figures, wherein:
FIG. 1 is a schematic structural diagram of a first embodiment of the present invention;
FIG. 2 is an enlarged schematic view of the filter apparatus shown in FIG. 1;
fig. 3 is a schematic structural diagram of the filter device in fig. 2 with the plastic housing removed.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and examples. It should be understood that the following specific examples are only for illustrating the present invention and are not to be construed as limiting the present invention.
As shown in fig. 1 to 3, the present invention provides a voltage converting device 100, which includes an isolation cover for accommodating a load and having an electromagnetic shielding effect, and a filtering device 20 disposed outside the isolation cover for filtering an output line of the load.
In the present application, the voltage conversion device 100 is an onboard charger or a voltage converter or a new device formed by integrating an onboard charger and a voltage converter together. The voltage conversion device 100 includes an isolation cover for accommodating the load and having an electromagnetic shielding function, and a filter device 20 for filtering an output line of the load in the isolation cover. The isolation cover is composed of a box body 11 and a cover body 12 matched with the box body 11. The box body 11 and the cover body 12 can be connected in a fixed connection mode, for example, in a welding mode, the stability of connection between the cover body 12 and the box body 11 can be guaranteed by adopting the welding mode, and meanwhile, the isolation of the inner space and the outer space of the box body 11 can be realized. According to the design requirement, the box body 11 and the cover body 12 can be connected in a movable connection mode, for example, in a screw connection mode, a clamping mode and the like, the box body 11 is convenient to open or close, and the voltage conversion device 100 is convenient to perform later maintenance.
In order to achieve the electromagnetic shielding effect, the box body 11 and the cover body 12 are made of metal materials, preferably aluminum alloy materials, and the box body 11 and the cover body 12 made of aluminum alloy materials have the advantages of light weight, high supporting strength and the like. Of course, other materials with electromagnetic shielding effect may be used. And are not limited to one.
The side wall of the box body 11 is provided with a line passing hole for communicating an output line of the internal load of the box body 11 with the outside, and the aperture of the line passing hole is equal to the outer diameter of a wiring copper bar in the filter device 20. By adopting the mode, the wiring copper bar in the filtering device 20 can be just attached to the wire passing hole, so that the relative isolation of the inner space and the outer space of the box body 11 is ensured, and the electromagnetic shielding effect of the whole isolation hood is improved.
The outer side wall of the box body 11 is connected with a filter device 20, the filter device 20 is electrically connected to an output line of a load, the working principle of the filter device is that alternating current is input to the voltage conversion device 100 from the outside, the load in the voltage conversion device 100 converts the alternating current into direct current to be output, and the filter device 20 is arranged on the output line of the load, filters the direct current output by the filter device and absorbs the alternating current in the direct current.
The technical scheme has the following advantages: install filter 20 in the outside of cage, utilize the electromagnetic shield effect that the self of cage has, avoid the electromagnetism that cage internal load produced to the influence that filter 20 produced, need not to set up the cage alone to filter 20 again, simplified the mounting structure of wave filter when guaranteeing that filter 20 avoids receiving electromagnetic interference, reduced manufacturing cost.
In an embodiment of the present application, the filter device 20 includes a wiring copper bar having one end connected to the output line of the load and the other end connected to the power transmission line, and a filter capacitor plate 22 having one terminal electrically connected to the wiring copper bar.
Specifically, the filtering device 20 includes a wiring copper bar, one end of which is connected to an output line of the load, and the other end of which is connected to a power transmission line of the power supply, so as to realize a charging process for the power supply. The power supply referred to in this application is a battery pack, and in a specific working condition, its main function is to receive the direct current converted from the alternating current by the voltage conversion device 100. One side of the wiring copper bar is electrically connected with a filter capacitor plate 22, and alternating current in an output line of a load is absorbed through the filter capacitor plate 22. Therefore, the voltage in the line is smooth direct current voltage, and harmonic interference is reduced. Filter equipment 20 still includes the plastic casing 23 who lives wiring copper bar and filter capacitor plate 22 parcel, sets up plastic casing 23 in the outside of wiring copper bar and filter capacitor plate 22, guarantees the stability of wiring copper bar and filter capacitor plate 22 during operation, better protection wiring copper bar and filter capacitor plate 22.
In an embodiment of the present application, the wiring copper bar includes a first connection portion 211, one end of which passes through the isolation cover to be connected to the output line of the load and the other end of which is connected to the power transmission line, and a second connection portion 212, which is disposed on one side of the first connection portion 211, and is used for connecting the first connection portion 211 with the filter capacitor plate 22 and supporting the first connection portion 211 to be located on the top of the filter capacitor plate 22.
Specifically, the wiring copper bar includes that one end passes the line hole of crossing that sets up on the shield and connects on the output line of load, and the other end is connected first connecting portion 211 on power transmission line and is used for switching on first connecting portion 211 and filter capacitor plate 22 and make first connecting portion 211 be located the second connecting portion 212 at filter capacitor plate 22 top with the one side that is located first connecting portion 211. With the above technical solution, the first connection portion 211 is disposed above the filter capacitor plate 22 through the second connection portion 212, so that the overall size of the filter device 20 is reduced.
In an embodiment of the present application, the first connection portion 211 is bent toward one end of the isolation cover to be stepped so as to be inserted into the isolation cover.
Specifically, one end of the first connecting portion 211 facing the shielding case may be bent to form a step shape according to the position of the wire passing hole. It is contemplated that the level toward one end of the cage may be relatively short above it or may be lower than the opposite end.
By adopting the technical scheme, the adaptability of the cable to different cable passing holes can be improved.
In an embodiment of the present application, a docking stud 2111 matched with the power transmission line is disposed at one end of the first connection portion 211 connected to the power transmission line.
Specifically, the end of the first connection portion 211 connected to the power transmission circuit is provided with a docking stud 2111, the number of the docking studs 2111 is at least one, and when the number is one, the connection is more convenient; when quantity is more than two, can realize counterpoint function, guarantee to connect more stably.
In an embodiment of the present application, the second connection portion 212 is L-shaped.
The second connection portion 212 having an L-shape is used to facilitate the connection between the second connection portion 212 and the filter capacitor plate 22.
In an embodiment of the present application, the other terminal of the filter capacitor plate 22 is grounded.
The other terminal of the filter capacitor plate 22 is grounded, so that the filtered alternating current can be directly led out, and the safety and stability of filtering are ensured.
In an embodiment of the present application, a mounting seat 13 is disposed on an outer side wall of the isolation cover, and the filter device 20 is fixed on the mounting seat 13.
The outer side wall of the lattice force searching device is provided with the mounting seat 13, and the filtering device 20 is mounted on the mounting seat 13, so that the stability of the filtering device 20 is guaranteed.
In an embodiment of the present application, the voltage conversion device 100 is an onboard charger or a voltage converter or a device formed by integrating an onboard charger and a voltage converter.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the technical solutions of the present invention, which are made by using the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. The voltage conversion device is characterized by comprising an isolation cover used for accommodating a load and having an electromagnetic shielding effect and a filtering device arranged outside the isolation cover and used for filtering an output line of the load, wherein the filtering device comprises a wiring copper bar of which one end is connected to the output line of the load and the other end is connected to a power transmission line and a filtering capacitor plate of which one terminal is electrically connected to the wiring copper bar.
2. The voltage conversion device according to claim 1, wherein said wiring copper bar comprises: one end of the first connecting part penetrates through the isolation cover to be connected with an output line of the load, and the other end of the first connecting part is connected with a power transmission line; and
and the second connecting part is arranged on one side of the first connecting part and used for connecting the first connecting part with the filter capacitor plate and supporting the first connecting part at the top of the filter capacitor plate.
3. A voltage conversion apparatus as recited in claim 2, wherein said first connection portion is bent in a step shape toward one end of said insulating cover to be inserted into said insulating cover.
4. The voltage conversion device according to claim 2, wherein a docking stud matched with the power transmission line is arranged at one end of the first connection part connected with the power transmission line.
5. A voltage conversion device as recited in claim 2, wherein said second connection portion is L-shaped.
6. A voltage conversion arrangement as claimed in claim 1, characterized in that the other terminal of said filter capacitor plate is connected to ground.
7. A voltage conversion device as recited in claim 1, wherein said cage has a mounting seat on an outer side wall thereof, said filter being fixed to said mounting seat.
8. A voltage conversion device as claimed in any one of claims 1 to 7, characterized in that the voltage conversion device is an onboard charger or voltage converter or a device formed by an onboard charger and voltage converter in an integrated manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120438987.0U CN216312924U (en) | 2021-03-01 | 2021-03-01 | Voltage converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120438987.0U CN216312924U (en) | 2021-03-01 | 2021-03-01 | Voltage converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216312924U true CN216312924U (en) | 2022-04-15 |
Family
ID=81079952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120438987.0U Active CN216312924U (en) | 2021-03-01 | 2021-03-01 | Voltage converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216312924U (en) |
-
2021
- 2021-03-01 CN CN202120438987.0U patent/CN216312924U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 518000 Fengyun Science and Technology Building, No. 5 Industrial Zone, North Ring Road, Nanshan District, Shenzhen City, Guangdong Province, 501 Patentee after: Shenzhen Weimeisi New Energy (Group) Co.,Ltd. Country or region after: China Address before: 518000, 5 floor, Fengyun mansion, five road north, Nanshan District science and Technology Park, Shenzhen, Guangdong Patentee before: Shenzhen Vmax Power Co.,Ltd. Country or region before: China |
|
| CP03 | Change of name, title or address |