CN214264238U

CN214264238U - Small-size contravariant welding machine filter capacitor plate structure

Info

Publication number: CN214264238U
Application number: CN202023078043.1U
Authority: CN
Inventors: 姬建琴
Original assignee: Xinxiang Keniu Electric Welding Machine Co ltd
Current assignee: Xinxiang Keniu Electric Welding Machine Co ltd
Priority date: 2020-12-20
Filing date: 2020-12-20
Publication date: 2021-09-24
Anticipated expiration: 2030-12-20

Abstract

The utility model discloses a small-size contravariant welding machine filter capacitor plate structure, including the printing board, the front outer wall of printing board is provided with first electric capacity district, the front outer wall of printing board is provided with second electric capacity district, the front outer wall of printing board is provided with the first electric capacity district in third electric capacity district, the second electric capacity district, third electric capacity district and fourth electric capacity district staggered arrangement from top to bottom between adjacent, and first electric capacity district, the second electric capacity district, certain space is left between third electric capacity district and the fourth electric capacity district is adjacent, the front outer wall of printing board is provided with first resistance district, and first resistance district is located the inside in first electric capacity district, the front outer wall of printing board is provided with second resistance district, and second resistance district is located the inside in fourth electric capacity district, the welding of the front outer wall of printing board has first circuit. The utility model discloses filter capacitor printing board copper foil adopts 72 um's thickness, increases conductive cross section, and the reinforcing radiating effect changes the electric capacity structure of arranging for four electric capacities heat dissipations are even.

Description

Small-size contravariant welding machine filter capacitor plate structure

Technical Field

The utility model relates to a capacitor plate technical field especially relates to a small-size contravariant welding machine filter capacitor plate structure.

Background

The direct-current low-frequency filter circuit of the small-sized inverter welding machine adopts the electrolytic capacitor as a main component, and the overall layout of the inverter welding power supply is particularly important for large heat productivity because the volume is required to be reduced and the power is required to be increased to meet the requirement of convenient carrying nowadays.

However, generally, the inverter is considered as a main heat dissipation part, the heat dissipation of the filter capacitor is ignored, the wind direction of the heat dissipation fan with the structure faces the capacitor direction, the outer capacitor just blocks the wind flow to the outer side, the inner capacitor basically cannot dissipate the heat, the inner capacitor heats seriously, the heat dissipation fan is very easy to damage when the external environment temperature is high, and meanwhile, the copper foil of the capacitor board printed board of each manufacturer in the market is 35um thick, the conductive section of the copper foil is small, and the heat dissipation effect is also influenced. Therefore, a need exists to design a filter capacitor plate structure for a small inverter welding machine to solve the above problems.

Disclosure of Invention

The utility model aims at solving the shortcoming that the filter capacitor heat dissipation that exists among the prior art is slow and the heat dissipation is uneven, and the small-size contravariant welding machine filter capacitor plate structure that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a filtering capacitor plate structure of a small-sized inverter welding machine comprises a printed board, wherein a first capacitance area is arranged on the outer wall of the front side of the printed board, a second capacitance area is arranged on the outer wall of the front side of the printed board, a third capacitance area is arranged on the outer wall of the front side of the printed board, the first capacitance area, the second capacitance area, the third capacitance area and the fourth capacitance area are arranged adjacently in a vertically staggered mode, certain gaps are reserved among the adjacent first capacitance area, the adjacent second capacitance area, the adjacent third capacitance area and the adjacent fourth capacitance area, a first resistance area is arranged on the outer wall of the front side of the printed board and is located inside the first capacitance area, a second resistance area is arranged on the outer wall of the front side of the printed board and is located inside the fourth capacitance area, a first circuit is welded on the outer wall of the front side of the printed board, and a second circuit is welded on the outer wall of the front side of the printed board, and a third circuit is welded on the outer wall of the front side of the printed board.

Furthermore, the outer wall of the front side of the printed board is provided with connecting holes, and the connecting holes are all located at four corners of the printed board.

Furthermore, two positive electrode terminals of the first circuit are respectively welded inside the third capacitor area and inside the fourth capacitor area, two negative electrode terminals of the first circuit are respectively welded inside the first capacitor area and inside the second capacitor area, two positive electrode terminals of the second circuit are respectively welded inside the first capacitor area and inside the second capacitor area, and two negative electrode terminals of the third circuit are respectively welded inside the third capacitor area and inside the fourth capacitor area.

Furthermore, the outer wall of the back of the first capacitance area is electrically connected with a first capacitor, the outer wall of the back of the second capacitance area is electrically connected with a second capacitor, the outer wall of the back of the third capacitance area is electrically connected with a third capacitor, and the outer wall of the back of the fourth capacitance area is electrically connected with a fourth capacitor.

Furthermore, the outer wall of the back of the first resistance area is electrically connected with a first resistor, and the outer wall of the back of the second resistance area is electrically connected with a second resistor.

Furthermore, the front face of the printed board is fixedly connected with a threaded rod, and the inner wall of the threaded rod is provided with threads.

The utility model has the advantages that:

1. through the printed board that sets up, the printed board adopts the filter capacitor printed board of 72um thickness, is 35 um's thickness for each producer's electric capacity board printed board copper foil on the market, increases the electrically conductive cross-section, strengthens the radiating effect of electric capacity board.

2. Through the first electric capacity district that sets up, the second electric capacity district, third electric capacity district and fourth electric capacity district, the first electric capacity district, the second electric capacity district, arrange of third electric capacity district and fourth electric capacity district and change electric capacity arrangement structure, first electric capacity and second electric capacity move 5mm to the outside like this, third electric capacity and fourth electric capacity move 5mm to the inboard, third electric capacity and fourth electric capacity obtain the fan amount of wind than the price many, four electric capacity heat dissipations are very even, avoid third electric capacity and fourth electric capacity because the heat dissipation is bad to lead to overheated phenomenon.

3. Through the threaded rod and the connecting hole that set up, the threaded rod with capacitor plate fixed mounting on small-size contravariant welding machine, the screw-thread fit nut of threaded rod uses, can be so that more firm of capacitor plate, the connecting hole then can provide the positioning action when installing the capacitor plate.

Drawings

Fig. 1 is a schematic front structural view of a filtering capacitor plate structure of a small inverter welding machine according to the present invention;

fig. 2 is a schematic view of a connection structure of a filter capacitor plate structure of a small inverter welding machine according to the present invention;

in the figure: the circuit board comprises a printed board 1, a first capacitor area 2, a second capacitor area 3, a third capacitor area 4, a fourth capacitor area 5, a first circuit 6, a second circuit 7, a third circuit 8, a first resistor area 9, a second resistor area 10, a connecting hole 11, a first capacitor 12, a second capacitor 13, a third capacitor 14, a fourth capacitor 15, a first resistor 16, a second resistor 17 and a threaded rod 18.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, a small inverter welding machine filter capacitor plate structure comprises a printed board 1, a first capacitor area 2 is arranged on the outer wall of the front side of the printed board 1, the first capacitor area 2 is used for electrically connecting a first capacitor 12, a second capacitor area 3 is arranged on the outer wall of the front side of the printed board 1, the second capacitor area 3 is used for electrically connecting a first capacitor 13, a third capacitor area 4 is arranged on the outer wall of the front side of the printed board 1, the third capacitor area 4 is used for electrically connecting a third capacitor 14, the first capacitor area 2, the second capacitor area 3, the third capacitor area 4 and the fourth capacitor area 5 are arranged in a vertically staggered manner, a certain gap is reserved between the first capacitor area 2, the second capacitor area 3, the third capacitor area 4 and the fourth capacitor area 5, a first resistor area 9 is arranged on the outer wall of the front side of the printed board 1, the first resistor area 9 is used for electrically connecting a first resistor 16, and first resistance district 9 is located the inside of first electric capacity district 2, and the front outer wall of printed board 1 is provided with second resistance district 10, and second resistance district 10 is used for electric connection second resistance 17, and second resistance district 10 is located the inside of fourth electric capacity district 5, and the welding of the front outer wall of printed board 1 has first circuit 6, and the welding of the front outer wall of printed board 1 has second circuit 7, and the welding of the front outer wall of printed board 1 has third circuit 8.

Furthermore, the outer wall of the front side of the printed board 1 is provided with a connecting hole 11, the connecting hole 11 is used for positioning when the capacitor board is installed, and the connecting holes 11 are located at four corners of the printed board 1.

Furthermore, two positive electrode terminals of the first circuit 6 are respectively welded inside the third capacitor area 4 and inside the fourth capacitor area 5, two negative electrode terminals of the first circuit 6 are respectively welded inside the first capacitor area 2 and inside the second capacitor area 3, two positive electrode terminals of the second circuit 7 are respectively welded inside the first capacitor area 2 and inside the second capacitor area 3, and two negative electrode terminals of the third circuit 8 are respectively welded inside the third capacitor area 4 and inside the fourth capacitor area 5.

Furthermore, the outer wall of the back of the first capacitance area 2 is electrically connected with a first capacitor 12, the outer wall of the back of the second capacitance area 3 is electrically connected with a second capacitor 13, the outer wall of the back of the third capacitance area 4 is electrically connected with a third capacitor 14, the outer wall of the back of the fourth capacitance area 5 is electrically connected with a fourth capacitor 15, and the first capacitor 12, the second capacitor 13, the third capacitor 14 and the fourth capacitor 15 filter low frequencies in the small-sized inverter welding machine.

Furthermore, the outer wall of the back of the first resistance region 9 is electrically connected with a first resistor 16, and the outer wall of the back of the second resistance region 10 is electrically connected with a second resistor 17.

Furthermore, the front face of the printed board 1 is fixedly connected with a threaded rod 18, the inner wall of the threaded rod 18 is provided with threads, the threaded rod 18 is used for fixedly mounting the capacitor board on the small-sized inverter welding machine, and a screw hole of the threaded rod is matched with a screw for use.

The working principle is as follows: printed board 1 adopts the filter capacitor printed board of 72um thickness, be 35 um's thickness for each producer capacitor board printed board copper foil on the market, increase the electrically conductive cross-section, strengthen the radiating effect of capacitor plate, first electric capacity district 2, second electric capacity district 3, the arrangement of third electric capacity district 4 and fourth electric capacity district 5 changes electric capacity arrangement structure, first electric capacity 12 and second electric capacity 13 outside remove 5mm like this, third electric capacity 14 and fourth electric capacity 15 inside side remove 5mm, third electric capacity 14 and fourth electric capacity 15 obtain the fan amount of wind price ratio many, four electric capacity heat dissipations are very even, avoid third electric capacity 14 and fourth electric capacity 15 because the bad overheat phenomenon that leads to of heat dissipation.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is familiar with the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered in the protection scope of the present invention.

Claims

1. A small-sized inverter welding machine filter capacitor plate structure comprises a printed board (1) and is characterized in that a first capacitance area (2) is arranged on the outer wall of the front side of the printed board (1), a second capacitance area (3) is arranged on the outer wall of the front side of the printed board (1), a third capacitance area (4) is arranged on the outer wall of the front side of the printed board (1), a certain gap is reserved between the first capacitance area (2), the second capacitance area (3), the third capacitance area (4) and the fourth capacitance area (5) which are adjacent, a first resistance area (9) is arranged on the outer wall of the front side of the printed board (1), the first resistance area (9) is located inside the first capacitance area (2), and a second resistance area (10) is arranged on the outer wall of the front side of the printed board (1), and second resistance district (10) are located the inside of fourth electric capacity district (5), the welding of the front outer wall of printing board (1) has first circuit (6), the welding of the front outer wall of printing board (1) has second circuit (7), the welding of the front outer wall of printing board (1) has third circuit (8).

2. The small-sized inverter welding machine filter capacitor plate structure as claimed in claim 1, wherein the outer wall of the front side of the printed board (1) is provided with connecting holes (11), and the connecting holes (11) are all located at four corners of the printed board (1).

3. The filter capacitor plate structure of the small-sized inverter welding machine according to claim 1, wherein two positive electrode terminals of the first circuit (6) are respectively welded inside the third capacitor area (4) and inside the fourth capacitor area (5), two negative electrode terminals of the first circuit (6) are respectively welded inside the first capacitor area (2) and inside the second capacitor area (3), two positive electrode terminals of the second circuit (7) are respectively welded inside the first capacitor area (2) and inside the second capacitor area (3), and two negative electrode terminals of the third circuit (8) are respectively welded inside the third capacitor area (4) and inside the fourth capacitor area (5).

4. The small-sized inverter welding machine filter capacitor plate structure as claimed in claim 1, wherein a first capacitor (12) is electrically connected to the outer wall of the back side of the first capacitor region (2), a second capacitor (13) is electrically connected to the outer wall of the back side of the second capacitor region (3), a third capacitor (14) is electrically connected to the outer wall of the back side of the third capacitor region (4), and a fourth capacitor (15) is electrically connected to the outer wall of the back side of the fourth capacitor region (5).

5. The filter capacitor plate structure of the small-sized inverter welding machine as claimed in claim 1, wherein a first resistor (16) is electrically connected to the outer wall of the back side of the first resistor region (9), and a second resistor (17) is electrically connected to the outer wall of the back side of the second resistor region (10).

6. The small-sized inverter welding machine filter capacitor plate structure as claimed in claim 1, wherein a threaded rod (18) is fixedly connected to the front surface of the printed plate (1), and the inner wall of the threaded rod (18) is threaded.