Vehicle-mounted film capacitor for double electric control

Abstract

The utility model provides a vehicle-mounted film capacitor for double electric control, which relates to the technical field of vehicle-mounted capacitors and comprises a plastic shell, a core body for storing and releasing charges is arranged in the plastic shell, an anode copper bar for conducting current is arranged above the core body, and a cathode copper bar for conducting current is arranged above the anode copper bar. A cathode copper bar for conducting current below the core body is further arranged in the plastic shell, an anode connector which is connected with the anode copper bar and used for being connected with an external cable is arranged on the outer wall of the plastic shell, and a cathode connector which is connected with the cathode copper bar and used for being connected with the external cable is further arranged on the outer wall of the plastic shell. Metal layers are sprayed on the upper end and the lower end of a capacitor core to form a positive pole contact pin and the capacitor core, the positive pole contact pin and the capacitor core are placed in a drying oven for heating thermal polymerization shaping, a positive pole copper bar and a negative pole copper bar are welded to the upper end and the lower end of a core body, a welded semi-finished product is installed in a plastic shell and fixed through a tool, epoxy potting and heating curing are conducted, and the tool is dismantled after curing is completed. And product manufacturing is completed.

Description

Technical Field

[0001] This utility model relates to the field of automotive capacitor technology, and in particular to a dual-electronic control automotive thin-film capacitor. Background Technology

[0002] Automotive film capacitors are capacitors used in automotive electronic systems. They are mainly used to store and release electrical energy to meet the power needs of various electronic devices in the vehicle. They are usually composed of metallized film electrodes and insulating dielectrics. The electrode materials are generally metals such as aluminum or zinc. An extremely thin metal layer is formed on the plastic film as an electrode through processes such as vacuum deposition. The insulating dielectric is made of high-performance plastic film such as polypropylene.

[0003] However, in the current technology, new energy vehicles are developing rapidly. As one of the three core components of new energy vehicles, motor controllers are being studied by various car companies on how to make them smaller and lighter while ensuring product quality, thereby increasing the practical space of the vehicle itself. As a very important electronic component in motor controllers, the size and shape of the capacitor directly affect the overall size of the controller unit. The existing capacitor drive system and power generation system cannot be shared. The internal structure of the controller is complex, and the manufacturing is limited. Therefore, a dual-control vehicle-mounted thin film capacitor is needed. Utility Model Content

[0004] The purpose of this invention is to provide a dual-electric control vehicle-mounted thin-film capacitor, which solves the problems of the capacitor drive system and the power generation system not being able to share space and occupying volume in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a dual-electric control vehicle-mounted thin-film capacitor, comprising a plastic shell, a core for storing and releasing charge inside the plastic shell, a positive copper busbar for conducting current above the core, and a negative copper busbar for conducting current below the core inside the plastic shell.

[0006] Preferably, the outer wall of the plastic shell is provided with a positive terminal connector for connecting to the positive copper busbar and for connecting to external cables, and the outer wall of the plastic shell is also provided with a negative terminal connector for connecting to the negative copper busbar and for connecting to external cables.

[0007] Preferably, the outer wall of the plastic shell is provided with an external connector plate for the external cable, and the inner wall of the external connector plate is provided with positive and negative connectors for the external cable.

[0008] Preferably, the plastic shell has a cavity inside for placing the core, the core including a positive electrode contact, a capacitor core and a negative electrode contact, the positive electrode contact being disposed on the top of the capacitor core and the negative electrode contact being disposed on the bottom of the capacitor core.

[0009] Preferably, the shape and size of the positive and negative copper busbars are adapted to the cavity.

[0010] Preferably, both the positive and negative copper busbars have welding holes.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] The positive electrode contact and capacitor core are formed by spraying a metal layer onto the upper and lower ends of the capacitor core. The core is then placed in an oven for heat polymerization and shaping. The positive and negative copper busbars are then welded to the upper and lower ends of the core. The welded semi-finished product is then placed into a plastic shell and fixed with tooling. Epoxy potting is performed, followed by heating and curing. After curing, the tooling is removed, and the product is complete. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the product of this utility model;

[0014] Figure 2 This is a schematic diagram of the plastic shell connection structure of the product of this utility model;

[0015] Figure 3 This is a schematic diagram of the core structure of the product of this utility model;

[0016] Figure 4 This is a schematic diagram of the negative electrode copper busbar structure of the product of this utility model;

[0017] Figure 5 This is a schematic diagram of the positive electrode copper busbar structure of the product of this utility model.

[0018] In the diagram: 1. Plastic outer shell; 2. Core; 201. Positive terminal contact; 202. Capacitor core; 203. Negative terminal contact; 3. Positive copper busbar; 4. Connector; 5. External board; 6. Positive and negative connectors; 7. Cavity; 8. Positive connector; 9. Negative connector; 10. Negative copper busbar. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] This utility model relates to a dual-electronic control vehicle-mounted thin-film capacitor, such as... Figure 1-5As shown, the device includes a plastic outer shell 1, inside which is a core 2, which is evenly placed within the plastic outer shell 1. A positive copper busbar 3 is located above the core 2, and the size of the positive copper busbar 3 is compatible with that of the plastic outer shell 1. Several interface 4 are also provided on the periphery of the plastic outer shell 1 for connecting external devices to facilitate welding to the top of the core 2. A negative copper busbar 10 is located at the bottom of the core 2 inside the plastic outer shell 1 and is fixed to the bottom of the core 2 by welding. The positive copper busbar 3 and the negative copper busbar 10 are used for conducting current. The outer wall of the plastic outer shell 1 also has... The positive terminal connector 8 connected to the positive copper busbar 3 can be connected to the positive terminal on the top of the core 2 via an external cable. The outer wall of the plastic shell 1 is also provided with a negative terminal connector 9 connected to the negative copper busbar 10 for connecting to the negative terminal of the core 2. The interior of the plastic shell 1 is provided with a cavity 7, which can accommodate the core 2, the positive copper busbar 3 and the negative copper busbar 10, reducing space occupation. The side wall of the plastic shell 1 is provided with an external plate 5, which can be connected to an external power source for power transmission. The inner wall of the external plate 5 is provided with positive and negative terminals 6 for connecting external wires. The positive and negative terminals 6 are arranged at equal intervals along the interior of the external plate 5.

[0021] Among them, such as Figure 3 As shown, the core 2 includes a positive electrode contact 201, a capacitor core 202, and a negative electrode contact 203. The bottom of the positive electrode contact 201 is connected to the top of the capacitor core 202, and the bottom of the capacitor core 202 is connected to the top of the negative electrode contact 203. The positive electrode contact 201 and the negative electrode contact 203 are formed by metal layers to conduct current.

[0022] Among them, such as Figure 4-5 As shown, both the positive electrode copper busbar 3 and the negative electrode copper busbar 10 have welding holes, and the positive electrode copper busbar 3 and the negative electrode copper busbar 10 are welded to the upper and lower ends of the core 2 respectively.

[0023] In practical use: A metal layer is sprayed onto the upper and lower ends of the capacitor core 202 to form the positive electrode contact 201 and the capacitor core 202. The core is then placed in an oven for heat polymerization and shaping. The positive electrode copper busbar 3 and the negative electrode copper busbar 10 are then welded to the upper and lower ends of the core 2. The welded semi-finished product is then placed into the plastic shell 1 and fixed with a tooling. Epoxy potting is performed, followed by heat curing. After curing, the tooling is removed, and the product is completed.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dual electrically controlled on-board film capacitor comprising a plastic housing (1), characterized in that: The plastic shell (1) has a core (2) inside for storing and releasing charge. Above the core (2) is a positive copper busbar (3) for conducting current. The plastic shell (1) also has a negative copper busbar (10) below the core (2) for conducting current.

2. The dual electrically controlled on-board film capacitor according to claim 1, characterized by: The outer wall of the plastic shell (1) is provided with a positive terminal connector (8) connected to the positive copper busbar (3) for connecting external cables. The outer wall of the plastic shell (1) is also provided with a negative terminal connector (9) connected to the negative copper busbar (10) for connecting external cables.

3. The dual electrically controlled on-board film capacitor of claim 1, wherein: The outer wall of the plastic shell (1) is provided with an external connector plate (5) for external cables, and the inner wall of the external connector plate (5) is provided with positive and negative connectors (6) for external cables.

4. The dual electrically controlled on-board film capacitor of claim 1, wherein: The plastic shell (1) has a cavity (7) inside for placing the core (2). The core (2) includes a positive electrode contact (201), a capacitor core (202) and a negative electrode contact (203). The positive electrode contact (201) is located on the top of the capacitor core (202) and the negative electrode contact (203) is located on the bottom of the capacitor core (202).

5. The dual electrically controlled on-board film capacitor of claim 1, wherein: The shape and size of the positive electrode copper busbar (3) and the negative electrode copper busbar (10) are adapted to the cavity (7).

6. The dual electrically controlled on-board film capacitor of claim 1, wherein: Both the positive electrode copper busbar (3) and the negative electrode copper busbar (10) are provided with welding holes.

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