Search

CN-121306794-B - Double-electric-control film capacitor with power relay EMC filtering and radiating device

CN121306794BCN 121306794 BCN121306794 BCN 121306794BCN-121306794-B

Abstract

The invention discloses a double-electric-control film capacitor with an EMC filtering and radiating device of a power relay, and belongs to the technical field of capacitors. The thin film capacitor comprises a shell of the thin film capacitor, an EMC filter assembly and a copper bar assembly, wherein the copper bar assembly comprises a first positive copper bar and a second positive copper bar, the first positive copper bar and the second positive copper bar connect two independent circuits to form a double electric control circuit, more reliable logic control is realized by using more simplified hardware, the control sensitivity to subsequent equipment is high, the synergy is good, after the capacitor is assembled continuously, the number of electronic elements can be reduced, the space is saved, the concentrated fault points of the control logic are fewer, the later fault investigation is easier to position, and the energy consumption and the energy saving of redundant elements are reduced.

Inventors

  • LIU BIN
  • LI GUISHENG
  • DU YE
  • SONG YITING
  • PENG CHAO

Assignees

  • 深圳汇北川科技股份有限公司

Dates

Publication Date
20260505
Application Date
20251211

Claims (8)

  1. 1. The utility model provides a take two automatically controlled film capacitor of power relay EMC filtering and heat abstractor, includes film capacitor's shell (1), EMC filtering subassembly and copper bar subassembly, EMC filtering subassembly is established and is adorned inside film capacitor's shell (1), and EMC filtering subassembly has capacitor core (2), copper bar subassembly is equipped with binding post (3), and copper bar subassembly has negative pole copper bar (4) and ground connection copper bar (5), its characterized in that, The copper bar assembly is further provided with a first positive copper bar (6) and a second positive copper bar (7), the first positive copper bar (6) is arranged at the upper half area in the shell (1) of the film capacitor, the second positive copper bar (7) is arranged at the lower half area in the shell (1) of the film capacitor, the first positive copper bar (6) and the second positive copper bar (7) are attached to the capacitor core (2), and different circuits are connected through the first positive copper bar (6) and the second positive copper bar (7) to realize double electric control on the capacitor; The EMC filter assembly is also provided with a Y2 capacitor bank (13), and the Y2 capacitor bank (13) is arranged at a side edge position inside the shell (1) of the film capacitor; The capacitors CY1 and CY2 in the Y2 capacitor bank (13) are connected in series and then grounded and are connected with two ends of the C1 in parallel, the capacitors CY3 and CY4 in the Y2 capacitor bank (13) are connected in series and then grounded and are connected with two ends of the C1 in parallel, the capacitors CY5 and CY6 in the Y2 capacitor bank (13) are connected in series and then grounded and are connected with two ends of the C1 in parallel, the capacitors CY1 and CY2, the capacitors CY3 and CY4 and the capacitors CY5 and CY6 are connected with two ends of the C1 in parallel, and the C1 represents a capacitor core attached to the first positive electrode copper bar (6); The capacitors CY7 and CY8 in the Y2 capacitor bank (13) are connected in series and then grounded and connected with two ends of the C2 in parallel, the capacitors CY9 and CY10 in the Y2 capacitor bank (13) are connected in series and then grounded and connected with two ends of the C2 in parallel, the capacitors CY11 and CY12 in the Y2 capacitor bank (13) are connected in series and then connected with two ends of the C2 in parallel, the capacitors CY7 and CY8, the capacitors CY9 and CY10 and the capacitors CY11 and CY12 are connected with two ends of the C2 in parallel, and the C2 represents a capacitor core attached to the second positive electrode copper bar (7).
  2. 2. The double-electric-control film capacitor with the power relay EMC filtering and radiating device according to claim 1, wherein circular through holes are uniformly distributed on the first positive copper bar (6) and the second positive copper bar (7).
  3. 3. The film capacitor with the power relay EMC filtering and heat dissipating device double electric control according to claim 2, wherein the connection terminal (3) of the second positive electrode copper bar (7) extends to the upper half area in the shell (1) of the film capacitor, and is arranged corresponding to the connection terminal (3) of the first positive electrode copper bar (6).
  4. 4. The film capacitor with the power relay EMC filtering and heat dissipating device double electric control as set forth in claim 1, wherein the power relay (8) is provided at the bottom area in the housing (1) of the film capacitor, and the power relay (8) can control the on or off of the connected circuit.
  5. 5. The film capacitor with the power relay EMC filtering and heat dissipating device double electric control as set forth in claim 4 wherein the power relay (8) is provided with a plug-in unit (9), the plug-in unit (9) enabling the power relay (8) to receive the transmission signal.
  6. 6. The film capacitor with the power relay EMC filtering and heat dissipating device double electric control according to claim 5, wherein the clamping piece (10) is arranged at the outer side of the power relay (8), the power relay (8) is clamped in the shell (1) of the film capacitor through the clamping piece (10), so that the power relay (8) cannot shake or shift in the shell (1) of the film capacitor.
  7. 7. The film capacitor with the power relay EMC filtering and heat dissipating device double electric control according to claim 1, characterized in that the bottom of the outer side of the shell (1) of the film capacitor is provided with a heat conducting plate (11).
  8. 8. The film capacitor with the power relay EMC filtering and heat dissipating device double electric control according to claim 7, wherein the two sides of the heat conducting plate (11) are provided with clamping pieces (12), the clamping pieces (12) extend to the edges of the shell (1) of the film capacitor to the two sides, and gaps are reserved between the clamping pieces (12) and the edges of the shell (1) of the film capacitor.

Description

Double-electric-control film capacitor with power relay EMC filtering and radiating device Technical Field The invention belongs to the technical field of capacitors, and particularly relates to a double-electric-control film capacitor with an EMC filtering and radiating device of a power relay. Background Electric vehicles are an important development direction of new energy vehicles, and four-wheel drive has been increasingly popular among electric vehicles. At present, most driving motors used for four-wheel drive electric automobiles are matched with a plurality of sets of circuit systems, and the plurality of sets of circuit systems generally adopt a design scheme for configuring independent capacitors, namely each set of circuit system is matched with a corresponding independent capacitor so as to regulate and control the motor. The control mode of the multiple independent capacitors assembled in the circuit system has the advantages of complex wiring, multiple electrical elements and large occupied space, and the independent circuits interconnected in the control system assembled with the multiple independent capacitors are difficult to control, so that the conditions that transmission is not timely or other circuit systems cannot respond timely when one set of circuit system fails are easy to occur, the heat productivity of the circuit systems of the multiple independent capacitors is large, and part of electrical elements are easy to be overheated and cannot work normally, so that the stability of the whole multiple sets of circuit systems is poor. Disclosure of Invention The technical problem to be solved by the invention is to overcome the defects of the prior art and provide a film capacitor with double electric control of a power relay EMC filtering and radiating device, which can overcome the problems or at least partially solve the problems. In order to achieve the above purpose, the present invention adopts the following technical scheme: The utility model provides a take two automatically controlled film capacitor of power relay EMC filtering and heat abstractor, includes film capacitor's shell, EMC filtering component and copper bar subassembly, EMC filtering component establishes the dress inside film capacitor's shell, and EMC filtering component has the condenser core, copper bar subassembly is equipped with binding post, and copper bar subassembly has negative pole copper bar and ground connection copper bar, copper bar subassembly still has first anodal copper bar and second anodal copper bar, and first anodal copper bar locates the upper half position in the shell, and second anodal copper bar locates the lower half position in film capacitor's the shell, and first anodal copper bar and second anodal copper bar paste dress are on the condenser core, access different circuits through first anodal copper bar and second anodal copper bar and realize the double electric control to this capacitor. Further, round through holes are uniformly distributed on the first positive electrode copper bar and the second positive electrode copper bar. Further, the wiring terminal of the second positive electrode copper bar extends to the upper half area in the shell of the film capacitor and is arranged corresponding to the wiring terminal of the first positive electrode copper bar. Further, a power relay is arranged at the bottom area in the shell of the film capacitor, and the power relay can control the connection or disconnection of a connected circuit. Further, the power relay is provided with a plug connector, and the plug connector can enable the power relay to receive transmission signals. Preferably, the power relay is provided with a clamping piece at the outer side, and the power relay is clamped in the shell of the film capacitor through the clamping piece, so that the power relay cannot shake or shift in the shell of the film capacitor. Further, a heat conducting plate is arranged at the bottom of the outer side of the shell of the film capacitor. Preferably, the heat conducting plate is provided with clamping pieces at two sides, the clamping pieces extend to the edges of the shell of the film capacitor towards two sides, and gaps are reserved between the clamping pieces and the edges of the shell of the film capacitor. Further, the EMC filter assembly is further provided with a Y2 capacitor bank, and the Y2 capacitor bank is disposed at a side location inside the case of the film capacitor. After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects: 1. The invention connects two independent circuits into a double electric control circuit through the arrangement of the first positive electrode copper bar and the second positive electrode copper bar, realizes more reliable logic control by more simplified hardware, avoids the use of more electronic elements in the two circuits, saves space, reduces related assembly parts, reduces