Thin film capacitor specially used for outdoor variable frequency air conditioner circuit board

Abstract

The utility model discloses a film capacitor specially used for an outdoor frequency conversion air conditioner circuit board, comprising a capacitor main body fixed with the surface of a PCB, the side surface of the capacitor main body is provided with a pin led out through a lead, the top position of the capacitor main body is provided with a fixing assembly, and the fixing assembly comprises a head fixing frame used for framing the top of the capacitor main body. A fixing head used for being fixed to an external element support is arranged at the top of the fixing frame. According to the utility model, the problems in the prior art that a thin-film capacitor specially used for outdoor equipment lacks a protection structure, is not beneficial to wire welding and is relatively short in service life are solved.

Description

Technical Field

[0001] The utility model relates to the field of capacitor structures, in particular to a film capacitor specially used for an outdoor variable frequency air conditioner circuit board. Background Art

[0002] Film capacitors are excellent capacitors because they have many excellent properties. Film capacitors are capacitors that use metal foil as electrodes, overlap them with plastic films such as polyethylene, polypropylene, polystyrene or polycarbonate, and then roll them into a cylindrical shape.

[0003] At present, for variable frequency air conditioners that work outdoors for a long time, the traditional film capacitor structure is used. It leads out the pins from the head position and connects with the nearby components on the circuit board, and only the bottom is fixed on the circuit board. At present, due to the need to connect multiple control devices inside the outdoor air conditioner, multi-layer boards are generally used. Therefore, the top of the film capacitor can only be used to lead out the pins, and the top welding wire is inconvenient to operate in a small space. In addition, because it is an outdoor device, the traditional film capacitor structure has weak protection ability and a short service life.

[0004] In view of this, the present technical solution proposes a film capacitor specially used for outdoor variable frequency air conditioner circuit boards. By adopting lead-out pins on both sides, the wiring does not need to be bent and is also convenient for welding. The top space is reserved for stabilizing and protecting the capacitor body, thereby extending its service life. Utility Model Content

[0005] The technical solution of the utility model aims to solve at least one of the technical problems in the related art to a certain extent. To this end, the main purpose of the utility model is to provide a film capacitor dedicated to outdoor variable frequency air conditioner circuit boards, aiming to solve the problems of the film capacitors dedicated to outdoor equipment in the prior art lacking a protective structure, being unfavorable for welding wires and having a short service life.

[0006] To achieve the above object, the utility model provides a film capacitor specially used for an outdoor variable frequency air conditioner circuit board, comprising a capacitor body fixed to the surface of the PCB, a pin led out through a wire is arranged on the side of the capacitor body, and a fixing component is arranged at the top of the capacitor body.

[0007] The fixing assembly comprises a head fixing frame for framing the top of the capacitor body, and a fixing head for fixing to an external element bracket is arranged at the top of the fixing frame.

[0008] As a further solution of the present invention, the head fixing frame is a plastic hot-melt formed structure.

[0009] As a further solution of the utility model, the fixing head is a bolt fixing structure.

[0010] As a further solution of the present invention, the number of the pins is at least 2, and they are respectively arranged on both sides of the capacitor body.

[0011] The beneficial effects of the utility model are as follows:

[0012] The thin film capacitor specially used for outdoor variable frequency air conditioner circuit board proposed by the utility model can leave space on the top of the capacitor body through the pins on the side of the capacitor body, and the top space can be used to set a fixing component to fix the head of the capacitor body to prevent shaking caused by external impact. The beneficial effect of setting the pins on the side is that it can save wiring and reduce the difficulty of welding wires. The pins can be set on one side, or on both sides (multiple sides). The overall structure is simple, easy to install and use, and has a long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model technical solution or the utility model technical solution in the prior art, the drawings required for use in the embodiments or the prior art descriptions will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model technical solution. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0014] Figure 1 This is a schematic diagram of the arrangement of the capacitor body, pins and fixing components in the utility model.

[0015] Figure 2 This is a schematic diagram of the arrangement of the components of the fixing assembly in the utility model.

[0016] Figure 3 It is a schematic diagram of the capacitor body, the pins and the fixing components in the present invention when they are separated.

[0017] [Main parts / assembly reference numerals]

[0018] Label name Label name 1 Capacitor body 20 Head fixed frame 10 Pinout 21 Fixed Head 100 wire 3 PCB 2 Fixed components DETAILED DESCRIPTION

[0019] as follows:

[0020] Please see attached Figure 1-3 ,

[0021] The main structure includes a capacitor body 1 fixed to the surface of PCB3, a pin 10 led out through a wire 100 is provided on the side of the capacitor body 1, a fixing component 2 is provided at the top of the capacitor body 1, and the fixing component 2 includes a head fixing frame 20 for framing the top of the capacitor body 1, and a fixing head 21 for fixing to an external component bracket is provided at the top of the fixing frame.

[0022] Here’s how it works:

[0023] This scheme adopts a structure different from the current head lead. The side pin 10 of the capacitor body 1 is adopted. After the pin 10 is set, it is directly connected to the adjacent components on the side, without bending the lead, and reducing the difficulty of welding wires in a small space. The top space of the capacitor body 1 can also be used for the installation of the head fixing frame 20. The head fixing frame 20 does not need to be completely connected to the top of the capacitor body (closely attached on both sides), and only needs to be framed, which can prevent the capacitor body 1 from being subjected to external impact. The fixed head 21 set at the top position of the head fixing frame 20 can be connected to the PCB3 on one side, and the components and component brackets.

[0024] A preferred embodiment of the present invention: the head fixing frame 20 is a plastic hot-melt formed structure.

[0025] Plastic parts have good toughness and impact resistance, and adopt an integrated hot-melt forming structure, which is easy to process in batches.

[0026] A preferred embodiment of the present invention: the fixing head 21 is a bolt fixing structure.

[0027] The fixing head 21 may also adopt a plug-in fixing column structure, which is directly connected to the copper column hole on the PCB 3 and then locked. When disassembling, just loosen the nut.

[0028] In a preferred embodiment of the present invention, the number of the pins 10 is at least 2, and they are respectively arranged on both sides of the capacitor body 1 .

[0029] The pin 10 may be configured as a single-sided pin 10 or a double-sided pin 10 .

[0030] The above description is only a preferred embodiment of the technical solution of the utility model, and does not limit the patent scope of the technical solution of the utility model. All equivalent structural changes made by using the contents of the technical solution description and drawings of the utility model under the conception of the technical solution of the utility model, or direct / indirect application in other related technical fields are included in the patent protection scope of the technical solution of the utility model.

Claims

1. A film capacitor specially used for outdoor variable frequency air conditioner circuit board, characterized in that: include A capacitor body fixed to the PCB surface, the side of the capacitor body is provided with pins led out by wires, and the top of the capacitor body is provided with a fixing component. The fixing assembly comprises a head fixing frame for framing the top of the capacitor body, and a fixing head for fixing to an external element bracket is arranged at the top of the fixing frame.

2. The film capacitor dedicated to outdoor variable frequency air conditioner circuit board according to claim 1 is characterized in that: The head fixing frame is a plastic hot-melt formed structure.

3. The film capacitor dedicated to outdoor variable frequency air conditioner circuit board according to claim 1 is characterized in that: The fixing head is a bolt fixing structure.

4. The film capacitor dedicated to outdoor variable frequency air conditioner circuit board according to claim 1 is characterized in that: The number of the pins is at least 2, and the pins are respectively arranged on two sides of the capacitor body.

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