CN113141166A - Electromagnetic interference suppression device and vehicle - Google Patents
Electromagnetic interference suppression device and vehicle Download PDFInfo
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- CN113141166A CN113141166A CN202010065496.6A CN202010065496A CN113141166A CN 113141166 A CN113141166 A CN 113141166A CN 202010065496 A CN202010065496 A CN 202010065496A CN 113141166 A CN113141166 A CN 113141166A
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/02—Details
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/70—Multiple-port networks for connecting several sources or loads, working on different frequencies or frequency bands, to a common load or source
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Abstract
The invention discloses an electromagnetic interference suppression device and a vehicle, wherein the electromagnetic interference suppression device comprises: the first common-mode filtering module is connected with the battery pack at a first end; the first end of the first differential mode filtering module is connected with the second end of the first common mode filtering module; the first end of the second common-mode filtering module is connected with the second end of the first differential-mode filtering module; and the first end of the second differential mode filtering module is connected with the second end of the second common mode filtering module, and the second end of the second differential mode filtering module is connected with the integrated high-voltage driving system. The device adopts the integrated mode to set up at motor controller, on-vehicle machine that charges and direct current converter's direct current bus input port, not only can reduce cost and practice thrift the space, can also reduce high frequency coupling, restrain the voltage sudden change that the switching tube switching causes in the twinkling of an eye, can play the guard action to the power battery of whole car when being applied to electric vehicle.
Description
Technical Field
The invention relates to the technical field of vehicles, in particular to an electromagnetic interference suppression device and a vehicle.
Background
With the application of intelligent networking and automatic driving of new energy automobiles, the number of sensitive devices in the automobiles is increased, and with the continuous development of motors and controllers thereof to high frequency, high voltage and high rotating speed, the requirements on the electromagnetic compatibility of a motor driving system are also continuously improved, and the design difficulty is also continuously increased.
Therefore, how to effectively suppress electromagnetic interference in a vehicle and improve electromagnetic compatibility of a motor driving system becomes a technical problem to be solved by those skilled in the art.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, the first objective of the present invention is to provide an electromagnetic interference suppression device, which is disposed at the dc bus input port of the integrated high-voltage driving system in an integrated manner, so as to reduce the cost and save the space, reduce the high-frequency coupling, suppress the voltage jump caused by the switching tube at the moment of opening and closing, and protect the power battery of the entire vehicle when applied to the electric vehicle.
A second object of the present invention is to provide an integrated high voltage drive system.
A third object of the invention is to propose a vehicle.
In order to achieve the above object, an embodiment of a first aspect of the present invention provides an electromagnetic interference suppression apparatus, including: the first common-mode filtering module is connected with the battery pack at a first end; a first differential-mode filtering module, a first end of the first differential-mode filtering module being connected to a second end of the first common-mode filtering module; a second common mode filtering module, a first end of the second common mode filtering module being connected to a second end of the first differential mode filtering module; and the first end of the second differential mode filtering module is connected with the second end of the second common mode filtering module, and the second end of the second differential mode filtering module is connected with the integrated high-voltage driving system.
According to the electromagnetic interference suppression device provided by the embodiment of the invention, the electromagnetic interference suppression device is arranged at the direct current bus input port of the integrated high-voltage driving system in an integrated mode, so that the cost can be reduced, the space can be saved, the high-frequency coupling can be reduced, the voltage sudden change caused by the instantaneous opening and closing of the switching tube can be suppressed, and the electromagnetic interference suppression device can play a role in protecting the power battery of the whole vehicle when being applied to an electric vehicle.
In addition, the electromagnetic interference suppression device proposed according to the above embodiment of the present invention may further have the following additional technical features:
according to one embodiment of the invention, the first common-mode filtering module comprises: the first end of the first inductor is connected with the positive electrode of the battery pack; a first end of the second inductor is connected with the negative electrode of the battery pack; the first end of the first capacitor is connected with the second end of the second inductor, and the second end of the first capacitor is grounded; the first differential mode filtering module comprises: a first end of the second capacitor is connected with a second end of the first inductor, and a second end of the second capacitor is connected with a second end of the second inductor; the second common mode filtering module includes: a third inductor, a first end of the third inductor being connected to a second end of the first inductor; a first end of the fourth inductor is connected with a second end of the second inductor; at least one third capacitor, wherein a first end of the third capacitor is connected with a second end of the fourth inductor, and a second end of the third capacitor is grounded; the second differential mode filtering module comprises: a fourth capacitor, a first end of the fourth capacitor is connected with the second end of the third inductor and then connected with the positive end of the integrated high-voltage driving system, a second end of the fourth capacitor is connected with the second end of the fourth inductor and then connected with the negative end of the integrated high-voltage driving system
According to an embodiment of the present invention, the second capacitor and the fourth capacitor are X-type capacitors, and the first capacitor and the third capacitor are Y-type capacitors.
According to one embodiment of the invention, the first inductor and the second inductor are fixedly connected in a buckling manner; the third inductor and the fourth inductor are fixedly connected in a buckling mode.
According to an embodiment of the invention, the first inductor and the second inductor are fixed on the printed circuit board by a first bracket, and the third inductor and the fourth inductor are fixed on the printed circuit board by a second bracket.
According to an embodiment of the present invention, the copper bar is connected to the first inductor, the second inductor, the third inductor, the fourth inductor, the first capacitor, the second capacitor, the third capacitor, and the fourth capacitor, and the copper bar is fixed on the printed circuit board through a third bracket.
According to one embodiment of the invention, the copper bar is connected to the printed circuit board by a spring.
According to an embodiment of the present invention, the above electromagnetic interference suppressing apparatus further includes: the inductor comprises a shell, wherein the shell is internally provided with an accommodating space for accommodating the first inductor, the second inductor, the third inductor, the fourth inductor and the printed circuit board.
According to one embodiment of the invention, the housing is a polybutylene terephthalate plastic housing.
According to one embodiment of the invention, the outer surface of the housing is provided with a conductive coating.
In order to achieve the above object, a second aspect of the present invention provides an integrated high voltage driving system, including: the electromagnetic interference suppression device is arranged at the direct current bus input ports of the motor controller, the vehicle-mounted charger and the direct current converter.
According to the integrated high-voltage driving system provided by the embodiment of the invention, the electromagnetic interference suppression device is arranged at the direct-current bus input port of the machine controller, the vehicle-mounted charger and the direct-current converter, so that the cost can be reduced, the space can be saved, the high-frequency coupling can be reduced, the voltage mutation caused by the switching moment of the switching tube can be suppressed, and the integrated high-voltage driving system can protect the power battery of the whole vehicle when being applied to an electric vehicle.
In order to achieve the above object, a vehicle according to a third aspect of the present invention includes the above electromagnetic interference suppression device.
According to the vehicle provided by the embodiment of the invention, the electromagnetic interference suppression device is arranged at the direct-current bus input port of the motor controller, the vehicle-mounted charger and the direct-current converter in an integrated manner, so that the cost can be reduced, the space can be saved, the high-frequency coupling can be reduced, the voltage sudden change caused by the switching moment of the switching tube can be suppressed, and the protection effect on the power battery of the whole vehicle can be realized when the electromagnetic interference suppression device is applied to an electric vehicle.
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 is a schematic circuit diagram of an EMI suppression apparatus according to one embodiment of the present invention;
FIG. 2 is a perspective view of an EMI suppression apparatus in accordance with one embodiment of the present invention;
FIG. 3 is an exploded view of an EMI suppression apparatus in accordance with one embodiment of the present invention;
FIG. 4 is a perspective view of an EMI suppression apparatus in accordance with one embodiment of the present invention;
FIG. 5 is a graph of a conducted test of an EMI suppression apparatus in accordance with one embodiment of the present invention;
fig. 6 is a test graph of radiated emissions from an emi suppression apparatus in accordance with an embodiment of the invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
The present application was made based on the study and recognition of the following problems:
at present, more than 90% of electromagnetic interference sources of an electric automobile are high-voltage integrated driving systems (mainly comprising a motor controller, a vehicle-mounted charger and a direct-current converter), and the main interference source in the high-voltage integrated driving systems is sudden change of voltage and current caused by rapid switching of a switching tube. In the related art, a distributed filtering method is generally adopted, that is, a filtering device is respectively arranged at one end of the motor controller, the vehicle-mounted charger and one end of the dc converter to suppress electromagnetic interference. However, this method requires a plurality of filtering devices, which is costly and takes up space.
An electromagnetic interference suppression apparatus, an integrated high-voltage drive system, and a vehicle according to an embodiment of the present invention will be described below with reference to the drawings.
Fig. 1 is a schematic circuit diagram of an electromagnetic interference suppression apparatus according to an embodiment of the present invention. As shown in fig. 1, the apparatus includes:
the common mode filter comprises a first common mode filter module 10, a first differential mode filter module 20, a second common mode filter module 30 and a second differential mode filter module 40.
Wherein, the first end of the first common mode filtering module 10 is connected with the battery pack, and the first end of the first differential mode filtering module 20 is connected with the second end of the first common mode filtering module 10; a first end of the second common mode filtering module 30 is connected with a second end of the first differential mode filtering module 10; a first terminal of the second differential mode filter module 40 is connected to a second terminal of the second common mode filter module 30, and a second terminal of the second differential mode filter module 40 is connected to the integrated high voltage driving system 50.
Specifically, as shown in fig. 1, the first common mode filtering module 10 and the second common mode filtering module 30 are configured to filter common mode signals and eliminate common mode interference, and the first differential mode filtering module 20 and the second differential mode filtering module 40 are configured to filter differential mode signals and eliminate differential mode interference, thereby improving electromagnetic compatibility of the high-voltage integrated driving system. The electromagnetic interference suppression device is arranged at the direct-current bus input port of the high-voltage integrated driving system 50 (comprising a motor controller MCU, a vehicle-mounted charger OBC and a direct-current converter DC) in an integrated mode, so that the cost can be reduced and the space can be saved, in addition, the filtering is realized by adopting a second-order LC filtering mode, the high-frequency coupling can be reduced, the voltage mutation caused by the switching on and off moment of a switching tube can be suppressed, and the protection effect on the power battery of the whole vehicle can be realized when the electromagnetic interference suppression device is applied to an electric vehicle.
Further, as shown in fig. 1, the first common-mode filtering module 10 includes: a first inductor L1, a second inductor L2, and at least one first capacitor C1Y (2 in fig. 1 for example). The first differential-mode filtering module 20 includes: a second capacitor C2X. The second common mode filtering module 30 includes: a third inductor L3, a fourth inductor L4, and at least one third capacitor C3Y (4 are taken as an example in fig. 1). The second differential-mode filtering module 40 includes: and a fourth capacitor C4X.
The first end of the first inductor L1 is connected with the positive electrode E + of the battery pack; the first end of the second inductor L2 is connected with the negative electrode E-of the battery pack; the first terminal of the first capacitor C1Y is connected to the second terminal of the second inductor L2, and the second terminal of the first capacitor C1Y is grounded.
A first terminal of the second capacitor C2X is connected to the second terminal of the first inductor L1, and a second terminal of the second capacitor C2X is connected to the second terminal of the second inductor L2.
The first end of the third inductor L3 is connected with the second end of the first inductor L1; a first terminal of the fourth inductor L4 is connected with a second terminal of the second inductor L2; a first end of the third capacitor C3Y is connected to the second end of the fourth inductor L4, and a second end of the third capacitor C3Y is grounded;
a first terminal of the fourth capacitor C4X is connected to the second terminal of the third inductor L3 and then to the positive terminal + of the integrated high voltage drive system 50, and a second terminal of the fourth capacitor C4X is connected to the second terminal of the fourth inductor L4 and then to the negative terminal-of the integrated high voltage drive system 50.
Specifically, as shown in fig. 1, the electromagnetic interference suppression device is disposed in an integrated manner at a DC bus input port of the high-voltage integrated driving system 50 (including a motor controller MCU, a vehicle-mounted charger OBC, and a DC converter DC), so as to reduce cost and save space, and the filtering is implemented in a second-order LC filtering manner, so as to reduce high-frequency coupling and suppress voltage sudden changes caused by switching on and off of a switching tube, and protect a power battery of a finished vehicle when applied to an electric vehicle.
In the implementation of the present invention, the second capacitor C2X and the fourth capacitor C4X are X-type capacitors, and the first capacitor C1Y and the third capacitor C3Y are Y-type capacitors. That is, the first to fourth capacitors are safety capacitors, when the safety capacitors fail, no electric shock is generated, the personal safety is not endangered, and the mode of combining the X capacitor and the Y capacitor is adopted, the main filtering function of the X capacitor is commonly used for differential mode filtering, is matched with common mode inductance, filters differential mode signals between E + and E-, and can prevent external interference; the Y capacitor is connected between E + and ground or between E-and ground (in the application, the Y capacitor is connected between E-and ground), and is used for filtering differential mode signals between E + and ground or between E-and ground.
In the present invention, if the first capacitor C1Y includes CY11 and CY12 and the third capacitor C3Y includes CY31, CY32, CY33 and CY34, the parameters of each capacitor and inductor may be: C2X ═ C4X ═ 2.2 uF; CY11 CY31 CY12 CY32 CY 0.22 uF; CY33 CY34 nF 10 nF; l1 ═ L2 ═ L3 ═ L4 ═ 15 uH. The filter capacitor adopts the matching use of large capacity and small capacity, and ensures that the electromagnetic interference suppression device has good suppression effect in 150KHz-600 MHz.
According to an embodiment of the present invention, as shown in fig. 2, the above-mentioned electromagnetic interference suppressing apparatus may further include: the housing 1 is provided with a housing space for accommodating the first inductor L1, the second inductor L2, the third inductor L3, the fourth inductor L4 and the printed circuit board PCB, wherein the housing space is arranged in the housing 1. The housing 1 may be a Polybutylene Terephthalate (PBT) housing, which may greatly reduce the weight of the entire electromagnetic interference suppression device; the outer surface of the shell 1 is provided with a conductive coating (conductive paint contains conductive particles such as aluminum, silver and the like), so that secondary coupling of space electromagnetic interference is reduced. Thus, the housing forms an internal insulation and external conduction feature.
According to an embodiment of the present invention, the first to fourth inductors L1-L4 may be magnetic rings. As shown in fig. 3, the first inductor L1 and the second inductor L2 are fixedly connected in a snap-fit manner; the third inductor L3 and the fourth inductor L4 are fixedly connected in a buckling manner.
As shown in fig. 4, the first inductor L1 and the second inductor L2 are fixed on the printed circuit board PCB by a first bracket, and the third inductor L3 and the fourth inductor L4 are fixed on the printed circuit board PCB by a second bracket.
Specifically, the first inductor L1-L4 can be a magnetic ring made of ferrite DMR40 materials, the magnetic ring is buckled in a buckling mode and then connected with a Printed Circuit Board (PCB) through a support, the fixing support is in over-hard matching, the gap of the magnetic ring is guaranteed, the inductance consistency of the product is guaranteed, and meanwhile the magnetic ring has a good inhibiting effect on common-mode interference of 150KHz-500 MHz.
According to an embodiment of the present invention, as shown in fig. 3, the above-mentioned electromagnetic interference suppressing apparatus may further include: and the copper bar 2 is connected with the first inductor L1, the second inductor L2, the third inductor L3, the fourth inductor L4, the first capacitor C1Y (CY11 and CY12), the second capacitor C2X, the third capacitor C3Y (CY31-CY34) and the fourth capacitor C4X, and the copper bar 2 is fixed on the printed circuit board PCB through a third bracket. The copper bar 2 is connected with the printed circuit board PCB through a reed (i.e., a contact probe).
Specifically, considering the simplification of the process, the copper bar 2 and the printed circuit board PCB are connected by the spring, the spring is welded at one end of the printed circuit board PCB, and then the copper bar 2 and the spring are in good contact by the grounding mode when the whole machine is installed. Point a shown in fig. 4 is a ground point.
Through relevant experiments, the integrated high-voltage driving product applying the electromagnetic interference suppression device can meet the requirement of CISPR25 grade 3, the high-frequency section can already meet the requirement of grade 5, the risk of interference on sensitive equipment in a vehicle is greatly reduced, and the test result can refer to fig. 5 and 6. Fig. 5 is a graph of a conducted test of an emi suppression apparatus according to an embodiment of the invention, and fig. 6 is a graph of a radiated emission test of an emi suppression apparatus according to an embodiment of the invention. Wherein, the horizontal axis represents frequency, the vertical axis represents noise level, and the curve is from top to bottom in proper order in the figure: quasi-peak, quasi-average, peak detection, average detection.
As can be seen from the test results of fig. 5 and 6, the emi suppression apparatus of the present invention can make the product to which it is applied satisfy the requirement of the electromagnetic compatibility.
In summary, according to the electromagnetic interference suppression device of the present invention, the integrated manner is adopted to be disposed at the dc bus input port of the motor controller, the vehicle-mounted charger and the dc converter, and the second-order LC filtering manner is adopted to implement filtering, so that not only can the cost be reduced and the space be saved, but also the high-frequency coupling can be reduced, and the voltage jump caused by the switching tube at the moment of switching can be suppressed, and the power battery of the entire vehicle can be protected when the electromagnetic interference suppression device is applied to the electric vehicle.
The invention also proposes an integrated high-voltage drive system comprising: the electromagnetic interference suppression device is arranged at the direct current bus input ports of the motor controller, the vehicle-mounted charger and the direct current converter.
According to the integrated high-voltage driving system provided by the embodiment of the invention, the electromagnetic interference suppression device is arranged at the direct-current bus input port of the machine controller, the vehicle-mounted charger and the direct-current converter, so that the cost can be reduced, the space can be saved, the high-frequency coupling can be reduced, the voltage mutation caused by the switching moment of the switching tube can be suppressed, and the integrated high-voltage driving system can protect the power battery of the whole vehicle when being applied to an electric vehicle.
In addition, the invention also provides a vehicle which comprises the electromagnetic interference suppression device.
According to the vehicle provided by the embodiment of the invention, the electromagnetic interference suppression device is arranged at the direct-current bus input port of the motor controller, the vehicle-mounted charger and the direct-current converter in an integrated manner, so that the cost can be reduced, the space can be saved, the high-frequency coupling can be reduced, the voltage sudden change caused by the switching moment of the switching tube can be suppressed, and the protection effect on the power battery of the whole vehicle can be realized when the electromagnetic interference suppression device is applied to an electric vehicle.
In the description of the present invention, it is to be understood that the terms "first", "second" and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. 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 present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean 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 are not necessarily intended to 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. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (12)
1. An electromagnetic interference suppression apparatus, comprising:
the first common-mode filtering module is connected with the battery pack at a first end;
a first differential-mode filtering module, a first end of the first differential-mode filtering module being connected to a second end of the first common-mode filtering module;
a second common mode filtering module, a first end of the second common mode filtering module being connected to a second end of the first differential mode filtering module;
and the first end of the second differential mode filtering module is connected with the second end of the second common mode filtering module, and the second end of the second differential mode filtering module is connected with the integrated high-voltage driving system.
2. The EMI suppression apparatus of claim 1,
the first common-mode filtering module comprises: the first end of the first inductor is connected with the positive electrode of the battery pack;
a first end of the second inductor is connected with the negative electrode of the battery pack;
the first end of the first capacitor is connected with the second end of the second inductor, and the second end of the first capacitor is grounded;
the first differential mode filtering module comprises:
a first end of the second capacitor is connected with a second end of the first inductor, and a second end of the second capacitor is connected with a second end of the second inductor;
the second common mode filtering module includes:
a third inductor, a first end of the third inductor being connected to a second end of the first inductor;
a first end of the fourth inductor is connected with a second end of the second inductor;
at least one third capacitor, wherein a first end of the third capacitor is connected with a second end of the fourth inductor, and a second end of the third capacitor is grounded;
the second differential mode filtering module comprises:
and the first end of the fourth capacitor is connected with the second end of the third inductor and then is connected with the positive end of the integrated high-voltage driving system, and the second end of the fourth capacitor is connected with the second end of the fourth inductor and then is connected with the negative end of the integrated high-voltage driving system.
3. The emi suppression apparatus as claimed in claim 2, wherein said second capacitor and said fourth capacitor are X-type capacitors, and said first capacitor and said third capacitor are Y-type capacitors.
4. The emi suppression apparatus as claimed in claim 2, wherein said first inductor and said second inductor are fixedly connected by means of a snap-fit connection; the third inductor and the fourth inductor are fixedly connected in a buckling mode.
5. The EMI suppression device of claim 4, wherein said first inductor and said second inductor are secured to a printed circuit board by a first bracket, and said third inductor and said fourth inductor are secured to said printed circuit board by a second bracket.
6. The electromagnetic interference suppression device according to claim 2, further comprising: and the copper bar is connected with the first inductor, the second inductor, the third inductor, the fourth inductor, the first capacitor, the second capacitor, the third capacitor and the fourth capacitor, and is fixed on a printed circuit board through a third support.
7. The EMI suppression device as claimed in claim 6, wherein said copper bar is connected to said PCB by a spring.
8. The EMI suppression apparatus of claim 5, further comprising: the inductor comprises a shell, wherein the shell is internally provided with an accommodating space for accommodating the first inductor, the second inductor, the third inductor, the fourth inductor and the printed circuit board.
9. The emi suppression apparatus as recited in claim 8, wherein said housing is a polybutylene terephthalate plastic housing.
10. The electromagnetic interference suppression device of claim 9, wherein an outer surface of said housing is provided with a conductive coating.
11. An integrated high voltage drive system, comprising: the electromagnetic interference suppression device comprises a motor controller, a vehicle-mounted charger, a direct-current converter and the electromagnetic interference suppression device according to any one of claims 1 to 10, wherein the electromagnetic interference suppression device is arranged at a direct-current bus input port of the motor controller, the vehicle-mounted charger and the direct-current converter.
12. A vehicle, characterized by comprising: a battery pack and an integrated high voltage drive system according to claim 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010065496.6A CN113141166A (en) | 2020-01-20 | 2020-01-20 | Electromagnetic interference suppression device and vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010065496.6A CN113141166A (en) | 2020-01-20 | 2020-01-20 | Electromagnetic interference suppression device and vehicle |
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| CN113141166A true CN113141166A (en) | 2021-07-20 |
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| CN202010065496.6A Pending CN113141166A (en) | 2020-01-20 | 2020-01-20 | Electromagnetic interference suppression device and vehicle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115173722A (en) * | 2022-06-17 | 2022-10-11 | 东风汽车集团股份有限公司 | Power pack, filtering component and hybrid vehicle |
| DE102021128536A1 (en) | 2021-11-03 | 2023-05-04 | Bayerische Motoren Werke Aktiengesellschaft | Protecting a vehicle from the effects of external electromagnetic interference |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2365621A1 (en) * | 2010-03-12 | 2011-09-14 | Elementech International Co., Ltd. | AC-TO-DC converting apparatus with EMI filtering function |
| CN105099165A (en) * | 2014-05-19 | 2015-11-25 | 北京东土科技股份有限公司 | EMC protection and filtering device and method of high voltage power supply |
| CN208299681U (en) * | 2018-03-26 | 2018-12-28 | 北京新能源汽车股份有限公司 | Filter circuit, motor controller and car |
-
2020
- 2020-01-20 CN CN202010065496.6A patent/CN113141166A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2365621A1 (en) * | 2010-03-12 | 2011-09-14 | Elementech International Co., Ltd. | AC-TO-DC converting apparatus with EMI filtering function |
| CN105099165A (en) * | 2014-05-19 | 2015-11-25 | 北京东土科技股份有限公司 | EMC protection and filtering device and method of high voltage power supply |
| CN208299681U (en) * | 2018-03-26 | 2018-12-28 | 北京新能源汽车股份有限公司 | Filter circuit, motor controller and car |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102021128536A1 (en) | 2021-11-03 | 2023-05-04 | Bayerische Motoren Werke Aktiengesellschaft | Protecting a vehicle from the effects of external electromagnetic interference |
| CN115173722A (en) * | 2022-06-17 | 2022-10-11 | 东风汽车集团股份有限公司 | Power pack, filtering component and hybrid vehicle |
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