CN215342316U

CN215342316U - Electrolytic capacitor electrode connection structure in frequency converter

Info

Publication number: CN215342316U
Application number: CN202121147840.2U
Authority: CN
Inventors: 王俊亮; 毛和平; 姜维
Original assignee: Shandong Yanhua Intelligent Technology Co ltd
Current assignee: Shandong Yanhua Intelligent Technology Co ltd
Priority date: 2021-05-26
Filing date: 2021-05-26
Publication date: 2021-12-28
Anticipated expiration: 2031-05-26

Abstract

The utility model discloses an electrolytic capacitor electrode connecting structure in a frequency converter, which comprises a base, wherein the outer side of the top end of the base is fixedly connected with four support rods, the top ends of the support rods are fixedly connected with limiting rings, one side of each limiting ring is fixedly connected with a fixed seat, and the other side of the base is hinged with a protection plate. According to the capacitor fixing device, the first push rod and the second push rod are arranged, when the capacitor fixing device is used, a capacitor is placed on the inner wall of the fixed bottom groove, then the protection plate is rotated to enable the installation block to be clamped into the inner wall of the installation groove, meanwhile, the first clamping block is clamped into the inner wall of the fixed groove under the action of the first spring to fix the protection plate, meanwhile, the installation block pushes the second push rod to move downwards, the second push rod pushes the second clamping block to move towards one side through the second connecting rod, the second clamping block is tightly attached to the outer wall of the capacitor to fix the capacitor, the capacitor is prevented from being damaged due to rotation, the capacitor is convenient to install and disassemble, and the efficiency is improved.

Description

Electrolytic capacitor electrode connection structure in frequency converter

Technical Field

The utility model relates to the technical field of frequency converters, in particular to an electrode connecting structure of an electrolytic capacitor in a frequency converter.

Background

A Variable-frequency drive (VFD) is a power control device that applies frequency conversion technology and microelectronic technology to control an ac motor by changing the frequency of a working power supply of the motor. The frequency converter mainly comprises a rectifying unit (alternating current to direct current), a filtering unit, an inverting unit (direct current to alternating current), a braking unit, a driving unit, a detection unit micro-processing unit and the like. With the continuous and rapid development of the frequency converter technology, the frequency conversion types are continuously increased, the range is continuously expanded, the requirements on the layout of frequency converter components and the design of a case and a cabinet are higher and higher, and the current capacitor is widely applied in the fields of power electronics, communication facilities, rail transportation and the like. In general, during the use of the capacitor, the electrode, the copper foil and the explosion-proof block are connected together by a rivet, and the existing capacitor generally fixes the copper foil to the explosion-proof block by a rivet and then connects the electrode to the copper foil by soldering.

The existing capacitor electrode connecting structure mostly adopts welding connection, but not only affects secondary maintenance, but also easily damages the capacitor and is inconvenient to disassemble and assemble.

Therefore, it is necessary to provide an electrode connection structure of an electrolytic capacitor in a frequency converter to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an electrolytic capacitor electrode connecting structure in a frequency converter, which aims to solve the problems that the capacitor electrode connecting structure in the technology mostly adopts welding connection, but the secondary maintenance is influenced, the capacitor is easy to damage, and the disassembly and the assembly are inconvenient.

In order to achieve the above purpose, the utility model provides the following technical scheme: an electrolytic capacitor electrode connecting structure in a frequency converter comprises a base, wherein the outer side of the top end of the base is fixedly connected with four supporting rods, the top end of each supporting rod is fixedly connected with a limiting ring, one side of each limiting ring is fixedly connected with a fixing seat, the other side of the base is hinged with a protection plate, one end of each protection plate is fixedly connected with an installation block, one end of each installation block is provided with a fixing groove, one side of each fixing seat is provided with an installation groove, the top end of each fixing seat is provided with a second sliding groove, the inner wall of each second sliding groove is fixedly connected with a first spring, the top end of each first spring is fixedly connected with a first push rod, one side of each first push rod is hinged with a first connecting rod, one end of each first connecting rod is hinged with a first clamping block, the outer wall of each first push rod is matched with the inner wall of the corresponding second sliding groove, and the first push rods are in sliding connection with the corresponding second sliding grooves, the bottom of mounting groove is equipped with the third spout, the inner wall fixedly connected with second spring of third spout, the top fixedly connected with second push rod of second spring, one side of second push rod articulates there is the second connecting rod, the one end of second connecting rod articulates there is the second fixture block, the outer wall of second push rod and the inner wall phase-match of third spout, second push rod and third spout sliding connection.

Preferably, the inner side of the top end of the base is provided with a fixed bottom groove, and the bottom end of the fixed bottom groove is provided with a clamping groove.

Preferably, the number of the clamping grooves is two, and the inner wall of the fixed bottom groove is connected with a capacitor in a sliding mode.

Preferably, the bottom end of the capacitor is fixedly connected with a fixed base, and the bottom end of the fixed base is fixedly connected with an electrode.

Preferably, the number of the electrodes is two, the outer wall of each electrode is matched with the inner wall of the corresponding clamping groove, and a first sliding groove is formed in the bottom end of each clamping groove, which is located in the base.

Preferably, the inner wall sliding connection of first spout has the power connecting block, the inner wall of first spout rotates and is connected with the threaded rod, the threaded rod is established with the power connecting block through the thread bush and is connected.

In the technical scheme, the utility model provides the following technical effects and advantages:

1. by arranging the first push rod and the second push rod, when the capacitor is used, the capacitor is placed on the inner wall of the fixed bottom groove, then the protection plate is rotated to enable the installation block to be clamped into the inner wall of the installation groove, meanwhile, the first clamping block is clamped into the inner wall of the fixed groove under the action of the first spring to fix the protection plate, meanwhile, the installation block pushes the second push rod to move downwards, the second push rod pushes the second clamping block to move towards one side through the second connecting rod, the second clamping block is tightly attached to the outer wall of the capacitor to fix the capacitor, the capacitor is prevented from being damaged due to rotation, the capacitor is convenient to install and disassemble, and the efficiency is improved;

2. through setting up the threaded rod, when connecting the electrode, through rotating the threaded rod this moment, the threaded rod drives the power connecting block and slides at first spout inner wall, extrudees and fixes the electrode, conveniently connects the electrode, makes things convenient for the dismouting to electrode and electric capacity, reinforcing practicality.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a sectional view of the fixing frame of the present invention;

FIG. 3 is a schematic diagram of a capacitor structure according to the present invention;

FIG. 4 is a schematic cross-sectional view of a base structure of the present invention;

fig. 5 is a schematic view of a fixing base structure of the present invention.

Description of reference numerals:

1. a base; 2. fixing the bottom groove; 3. a card slot; 4. a limiting ring; 5. a fixed seat; 6. a protection plate; 7. mounting blocks; 8. fixing grooves; 9. a capacitor; 10. a strut; 11. a fixed base; 12. an electrode; 13. a first chute; 14. a power supply connecting block; 15. a threaded rod; 16. mounting grooves; 17. a second chute; 18. a first spring; 19. a first push rod; 20. a first link; 21. a first clamping block; 22. a third chute; 23. a second spring; 24. a second push rod; 25. a second link; 26. and a second clamping block.

Detailed Description

In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.

The utility model provides an electrolytic capacitor electrode connecting structure in a frequency converter as shown in figures 1-5, which comprises a base 1, wherein the outer side of the top end of the base 1 is fixedly connected with four support rods 10, the top end of each support rod 10 is fixedly connected with a limiting ring 4, one side of each limiting ring 4 is fixedly connected with a fixed seat 5, the other side of the base 1 is hinged with a protection plate 6, one end of each protection plate 6 is fixedly connected with an installation block 7, one end of each installation block 7 is provided with a fixing groove 8, one side of each fixed seat 5 is provided with an installation groove 16, the top end of each fixed seat 5 is provided with a second sliding groove 17, the inner wall of each second sliding groove 17 is fixedly connected with a first spring 18, the top end of each first spring 18 is fixedly connected with a first push rod 19, one side of each first push rod 19 is hinged with a first connecting rod 20, one end of each first connecting rod 20 is hinged with a first clamping block 21, the outer wall of the first push rod 19 is matched with the inner wall of the second sliding groove 17, the first push rod 19 is in sliding connection with the second sliding groove 17, the bottom end of the mounting groove 16 is provided with a third sliding groove 22, the inner wall of the third sliding groove 22 is fixedly connected with a second spring 23, the top end of the second spring 23 is fixedly connected with a second push rod 24, one side of the second push rod 24 is hinged with a second connecting rod 25, one end of the second connecting rod 25 is hinged with a second clamping block 26, the outer wall of the second push rod 24 is matched with the inner wall of the third sliding groove 22, the second push rod 24 is in sliding connection with the third sliding groove 22, firstly, under the action of the first push rod 19 and the second push rod 24, the capacitor 9 is placed on the inner wall of the fixed bottom groove 2 during use, then the protection plate 6 is rotated to enable the mounting block 7 to be clamped into the inner wall of the mounting groove 16, and meanwhile, the first clamping block 21 is clamped into the inner wall of the fixed groove 8 under the action of the first spring 18, fix guard plate 6, install piece 7 simultaneously and promote second push rod 24 downstream, second push rod 24 promotes second fixture block 26 through second connecting rod 25 and moves to one side, and closely laminating electric capacity 9's outer wall fixes electric capacity 9, prevents that electric capacity 9 from rotating to cause the damage, conveniently installs dismantlement, promotion efficiency to electric capacity 9.

The inboard on 1 top of base is equipped with fixed kerve 2, the bottom of fixed kerve 2 is equipped with draw-in groove 3, conveniently fixes and installs electric capacity 9.

The quantity of draw-in groove 3 sets up to two, the inner wall sliding connection of fixed kerve 2 has electric capacity 9, and electric capacity 9 inserts fixed kerve 2 inner walls, installs.

The bottom fixedly connected with unable adjustment base 11 of electric capacity 9, the bottom fixedly connected with electrode 12 of unable adjustment base 11, electrode 12 inserts the draw-in groove 3 inner wall and installs.

The quantity of electrode 12 sets up to two, the outer wall of electrode 12 and the inner wall phase-match of draw-in groove 3, the inside that 3 bottoms of draw-in groove are located base 1 is equipped with first spout 13, and power connection block 14 slides at first spout 13 inner walls.

Inner wall sliding connection of first spout 13 has power connection block 14, the inner wall of first spout 13 rotates and is connected with threaded rod 15, threaded rod 15 establishes through the thread bush with power connection block 14 and is connected, when connecting electrode 12, through rotating threaded rod 15 this moment, threaded rod 15 drives power connection block 14 and slides at first spout 13 inner wall, extrudees and fixes electrode 12, conveniently connects electrode 12, conveniently to electrode 12 and electric capacity 9's dismouting, reinforcing practicality.

This practical theory of operation:

referring to the attached drawings 1-5 of the specification, when the device is used, firstly, by arranging a first push rod 19 and a second push rod 24, when the device is used, a capacitor 9 is placed on the inner wall of a fixed bottom groove 2, then a protection plate 6 is rotated to enable an installation block 7 to be clamped into the inner wall of an installation groove 16, meanwhile, a first clamping block 21 is clamped into the inner wall of a fixed groove 8 under the action of a first spring 18 to fix the protection plate 6, meanwhile, the installation block 7 pushes the second push rod 24 to move downwards, the second push rod 24 pushes a second clamping block 26 to move to one side through a second connecting rod 25, the second clamping block is tightly attached to the outer wall of the capacitor 9, the capacitor 9 is fixed, the capacitor 9 is prevented from being damaged due to rotation, the capacitor 9 is convenient to install and detach, and the efficiency is improved;

referring to the attached drawings 1-5 of the specification, when the device is used, the threaded rod 15 is arranged, when the electrode 12 is connected, the threaded rod 15 is rotated, the threaded rod 15 drives the power supply connecting block 14 to slide on the inner wall of the first sliding groove 13, the electrode 12 is extruded and fixed, the electrode 12 is conveniently connected, the electrode 12 and the capacitor 9 are conveniently disassembled, and the practicability is improved.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the utility model.

Claims

1. The utility model provides an electrolytic capacitor electrode connection structure in converter, includes base (1), its characterized in that: the outer side of the top end of the base (1) is fixedly connected with four supporting rods (10), the number of the supporting rods (10) is four, the top end of each supporting rod (10) is fixedly connected with a limiting ring (4), one side of each limiting ring (4) is fixedly connected with a fixing seat (5), the other side of the base (1) is hinged with a protection plate (6), one end of each protection plate (6) is fixedly connected with an installation block (7), one end of each installation block (7) is provided with a fixing groove (8), one side of each fixing seat (5) is provided with an installation groove (16), the top end of each fixing seat (5) is provided with a second sliding groove (17), the inner wall of each second sliding groove (17) is fixedly connected with a first spring (18), the top end of each first spring (18) is fixedly connected with a first push rod (19), one side of each first push rod (19) is hinged with a first connecting rod (20), the one end of first connecting rod (20) articulates there is first fixture block (21), the outer wall of first push rod (19) and the inner wall phase-match of second spout (17), first push rod (19) is sliding connection with second spout (17), the bottom of mounting groove (16) is equipped with third spout (22), the inner wall fixedly connected with second spring (23) of third spout (22), the top fixedly connected with second push rod (24) of second spring (23), one side of second push rod (24) articulates there is second connecting rod (25), the one end of second connecting rod (25) articulates there is second fixture block (26), the outer wall of second push rod (24) and the inner wall phase-match of third spout (22), second push rod (24) and third spout (22) sliding connection.

2. The electrolytic capacitor electrode connection structure in a frequency converter according to claim 1, wherein: the inner side of the top end of the base (1) is provided with a fixed bottom groove (2), and the bottom end of the fixed bottom groove (2) is provided with a clamping groove (3).

3. The electrolytic capacitor electrode connection structure in a frequency converter according to claim 2, wherein: the quantity of draw-in groove (3) sets up to two, the inner wall sliding connection of fixed kerve (2) has electric capacity (9).

4. The electrolytic capacitor electrode connection structure in a frequency converter according to claim 3, wherein: the bottom fixedly connected with unable adjustment base (11) of electric capacity (9), the bottom fixedly connected with electrode (12) of unable adjustment base (11).

5. The electrolytic capacitor electrode connection structure in a frequency converter according to claim 4, wherein: the quantity of electrode (12) sets up to two, the outer wall of electrode (12) and the inner wall phase-match of draw-in groove (3), the inside that draw-in groove (3) bottom is located base (1) is equipped with first spout (13).

6. The electrolytic capacitor electrode connection structure in a frequency converter according to claim 5, wherein: the inner wall sliding connection of first spout (13) has power connecting block (14), the inner wall of first spout (13) rotates and is connected with threaded rod (15), threaded rod (15) are established with power connecting block (14) through the thread bush and are connected.