CN219679133U - EMC structure and vehicle-mounted charger - Google Patents
EMC structure and vehicle-mounted charger Download PDFInfo
- Publication number
- CN219679133U CN219679133U CN202320267899.8U CN202320267899U CN219679133U CN 219679133 U CN219679133 U CN 219679133U CN 202320267899 U CN202320267899 U CN 202320267899U CN 219679133 U CN219679133 U CN 219679133U
- Authority
- CN
- China
- Prior art keywords
- side plate
- circuit board
- shell
- emc
- utility
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000006260 foam Substances 0.000 claims abstract description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 15
- 229910052802 copper Inorganic materials 0.000 claims description 15
- 239000010949 copper Substances 0.000 claims description 15
- 230000004308 accommodation Effects 0.000 claims description 10
- HEZMWWAKWCSUCB-PHDIDXHHSA-N (3R,4R)-3,4-dihydroxycyclohexa-1,5-diene-1-carboxylic acid Chemical compound O[C@@H]1C=CC(C(O)=O)=C[C@H]1O HEZMWWAKWCSUCB-PHDIDXHHSA-N 0.000 description 9
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses an EMC structure and a vehicle-mounted charger, wherein the EMC structure comprises: the first side plate is arranged on the bottom surface of the shell, wherein a first accommodating space is formed by the first side plate, the bottom surface of the shell and the side surface of the shell; a signal terminal installed in the first receiving space; the circuit board is fixed at the end part of the first side plate to enable the first accommodating space to be closed; a first shield disposed on the circuit board; and the conductive foam is arranged at the joint between the first side plate and the circuit board. The EMC structure provided by the utility model directly separates the signal terminals through the shell and the side plates, and is attached to the circuit board through the conductive foam, so that the signal terminals are perfectly sealed in a single space, and the limited space in the shell is utilized to the greatest extent. In addition, a separate shielding cover is added above the circuit board, so that an EMC of the whole machine is greatly optimized, and the influence of the signal terminals is reduced to the minimum.
Description
Technical Field
The utility model relates to the technical field of automobile electronics, in particular to an EMC structure and a vehicle-mounted charger.
Background
Electromagnetic compatibility EMC (ElectroMagneticCompatibility) refers to the ability of a device or system to operate satisfactorily in its electromagnetic environment without intolerable electromagnetic interference to any device in its environment. Thus, EMC includes two requirements: on one hand, electromagnetic interference generated by equipment on the environment in the normal operation process cannot exceed a certain limit value; on the other hand, the device has a certain degree of immunity, namely electromagnetic sensitivity, to electromagnetic interference existing in the environment.
In the prior art, along with popularization of new energy electric vehicles, the requirements of the new energy electric vehicles on EMC (electromagnetic compatibility) of vehicle-mounted battery charger OBC, voltage converter DCDC, PDU modules or related integrated products are higher and higher, so that the interference suppression treatment of the vehicle-mounted battery charger OBC, voltage converter DCDC, PDU modules or related integrated products is very important. However, as the on-board charger OBC, the voltage converter DCDC, the PDU module, or the related integrated product is miniaturized, the on-board charger OBC, the voltage converter DCDC, the PDU module, or the related integrated product may be difficult to meet the electromagnetic compatibility requirement due to the limitation of the internal space.
Disclosure of Invention
The utility model provides an EMC structure and a vehicle-mounted charger, which aim to solve the technical problem that the vehicle-mounted charger cannot meet the electromagnetic compatibility requirement due to the reduction of the internal space in the prior art.
The technical scheme adopted by the utility model is as follows:
the utility model provides an EMC structure and a vehicle-mounted charger, wherein the EMC structure comprises: the first side plate is arranged on the bottom surface of the shell, wherein a first accommodating space is formed by the first side plate, the bottom surface of the shell and the side surface of the shell; a signal terminal installed in the first accommodation space; the circuit board is fixed at the end part of the first side plate so as to enable the first accommodating space to be closed; a first shield disposed on the circuit board; and conductive foam arranged at the joint between the first side plate and the circuit board.
Further, the novel copper-clad aluminum alloy shell comprises a first side plate and a second side plate, wherein the first side plate is arranged on the bottom surface of the shell, the bottom surface of the shell is surrounded by the first side plate and the second side plate to form a first accommodating space, the height of the first side plate is smaller than that of the second side plate, copper bars are arranged in the first accommodating space, the connecting ends of the copper bars extend out of the first accommodating space, and the end parts of the first side plate are fixedly provided with a first shielding cover for sealing the first accommodating space.
The vehicle-mounted charger comprises the EMC structure.
Compared with the prior art, the EMC structure provided by the utility model directly separates the signal terminals through the shell and the side plates, and is attached to the circuit board through the conductive foam, so that the signal terminals are perfectly sealed in a single space, and the limited space in the shell is utilized to the greatest extent. In addition, a separate shielding cover is added above the circuit board, so that an EMC of the whole machine is greatly optimized, and the influence of the signal terminals is reduced to the minimum.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic perspective view of an EMC according to an embodiment of the utility model;
1. a housing; 2. a first side plate; 3. a signal terminal; 4. a circuit board; 5. a first shield; 6. conductive foam; 7. a second side plate; 8. the connecting end of the copper bar; 9. and a second shield.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Along with popularization of new energy electric vehicles, the new energy electric vehicles have higher and higher requirements on EMC (electromagnetic compatibility) of vehicle-mounted battery charger OBC, voltage converter DCDC, PDU module or related integrated products, so that the interference suppression treatment of the vehicle-mounted battery charger OBC, voltage converter DCDC, PDU module or related integrated products is very important. However, as the on-board charger OBC, the voltage converter DCDC, the PDU module, or the related integrated product is miniaturized, the on-board charger OBC, the voltage converter DCDC, the PDU module, or the related integrated product may be difficult to meet the electromagnetic compatibility requirement due to the limitation of the internal space.
Therefore, in order to solve the technical problem that in the prior art, the vehicle-mounted charger OBC, the voltage converter DCDC, the PDU module or related integrated products cannot meet the electromagnetic compatibility requirement due to the fact that the internal space is reduced, the utility model provides an EMC structure, which comprises the following components:
the first side plate 2 is arranged on the bottom surface of the casing 1, the first side plate 2, the bottom surface of the casing 1 and the side surface of the casing 1 jointly enclose a first accommodating space, the signal terminal 3 is arranged in the first accommodating space, the circuit board 4 is fixed at the end part of the first side plate 2 to enable the first accommodating space to be closed, the first shielding cover 5 is arranged on the circuit board 4, and the connecting part between the first side plate 2 and the circuit board 4 is provided with conductive foam 6.
Therefore, the EMC structure provided by the utility model directly separates the signal terminals through the shell and the side plates, and is attached to the circuit board through the conductive foam, so that the signal terminals are perfectly sealed in a single space, and the limited space in the shell is utilized to the greatest extent. In addition, a separate shielding cover is added above the circuit board, so that an EMC of the whole machine is greatly optimized, and the influence of the signal terminals is reduced to the minimum.
The principles and structures of the present utility model are described in detail below with reference to the drawings and the examples.
As shown in fig. 1, the present utility model proposes an EMC structure, specifically: the first side plate 2 arranged on the bottom surface of the casing 1, the first side plate 2 encloses a first accommodating space with the bottom surface of the casing 1 and the side surface of the casing 1, the signal terminal 3 is arranged in the first accommodating space, the end part of the first side plate 2 is provided with a circuit board 4 connected with the signal terminal 3, the circuit board 4 seals the first accommodating space, a first shielding cover 5 is arranged on the circuit board 4, and a conductive foam 6 is arranged at the joint between the circuit board 4 and the first side plate 2. The first side plate 2 and the shell 1 form a first accommodating space to separate the signal terminals 3, so that the internal space of the shell 1 can be effectively planned and utilized. The circuit board 4 seals the first accommodating space, so that the structure can be simplified, the cost can be saved, and the interference of the signal terminal 3 on the whole machine can be restrained. The conductive foam 6 can seal the gap at the joint of the circuit board 4 and the first side board 2 to prevent the signal terminal 3 from interfering, and the first shielding cover 5 can also inhibit the interference of the circuit board 4 to the whole machine.
In addition, this EMC structure still includes the second curb plate 7 of setting on the bottom surface of casing 1, the second accommodation space has been enclosed jointly with the bottom surface of casing 1, first curb plate 2 to second curb plate 7, install the copper bar in the second accommodation space, the height of second curb plate 7 is less than the height of first curb plate 2, the link 8 of copper bar stretches out the second accommodation space, be fixed with second shield cover 9 on the tip of second curb plate 7, second shield cover 9 makes the copper bar seal in the second accommodation space, thereby restrain the influence of copper bar to the complete machine. The copper bar in the utility model comprises: the low-voltage copper bar with the voltage lower than a preset voltage threshold value is specifically set according to the thickness, the width and the correction coefficient corresponding to the air temperature of the copper bar.
In summary, the EMC structure provided by the utility model separates the signal terminal and the copper bar by the shell and the side plate, and seals the signal terminal and the copper bar in a single space by the circuit board or the shielding cover, so that the inner space of the shell is utilized to the greatest extent, and the influence of the copper bar on the EMC of the whole machine is reduced. Meanwhile, an independent shielding cover is additionally arranged above the circuit board, so that an EMC of the whole machine is greatly optimized, and the influence of the signal terminals is reduced to the minimum. Therefore, the service life and the reliability of the EMC structure provided by the utility model are both improved.
The utility model also provides a vehicle-mounted charger, which comprises the EMC structure.
It is noted that the above-mentioned terms are used merely to describe specific embodiments, and are not intended to limit exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
In the description of the present utility model, it should be understood that the azimuth or positional relationship indicated by the azimuth words such as "bottom surface of case, side surface of case" etc. is generally based on the azimuth or positional relationship shown in the drawings, and is merely for convenience of description and simplification of the description, and these azimuth words do not indicate or imply that the apparatus or element to be referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model.
In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (3)
- Emc structure characterized by comprising:the first side plate (2) is arranged on the bottom surface of the shell (1), wherein a first accommodating space is formed by the first side plate (2), the bottom surface of the shell (1) and the side surface of the shell (1);a signal terminal (3) mounted in the first accommodation space;a circuit board (4) fixed at the end of the first side plate (2) to close the first accommodating space;a first shield (5) provided on the circuit board (4); andand the conductive foam (6) is arranged at the joint between the first side plate (2) and the circuit board (4).
- 2. EMC structure according to claim 1, characterized by further comprising a second side plate (7) arranged on the bottom surface of the housing (1), wherein,the second side plate (7) with first side plate (2) the bottom surface of casing (1) encloses into the second accommodation space, the height of second side plate (7) is less than the height of first side plate (2), install the copper bar in the second accommodation space, link (8) of copper bar stretch out the second accommodation space, the tip of second side plate (7) is fixed with and seals second shield cover (9) in second accommodation space.
- 3. A vehicle-mounted charger comprising the EMC structure of any one of claims 1-2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320267899.8U CN219679133U (en) | 2023-02-21 | 2023-02-21 | EMC structure and vehicle-mounted charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320267899.8U CN219679133U (en) | 2023-02-21 | 2023-02-21 | EMC structure and vehicle-mounted charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219679133U true CN219679133U (en) | 2023-09-12 |
Family
ID=87927504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320267899.8U Active CN219679133U (en) | 2023-02-21 | 2023-02-21 | EMC structure and vehicle-mounted charger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219679133U (en) |
-
2023
- 2023-02-21 CN CN202320267899.8U patent/CN219679133U/en active Active
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