CN221127126U

CN221127126U - Bypass device of frequency converter

Info

Publication number: CN221127126U
Application number: CN202322659069.2U
Authority: CN
Inventors: 虞彦堃
Original assignee: Shanghai Jinruihong Energy Conservation And Environmental Protection Technology Co ltd
Current assignee: Shanghai Jinruihong Energy Conservation And Environmental Protection Technology Co ltd
Priority date: 2023-09-30
Filing date: 2023-09-30
Publication date: 2024-06-11
Anticipated expiration: 2033-09-30

Abstract

The utility model relates to the technical field of switching devices and discloses a frequency converter bypass device, which comprises a shell, wherein a static plate is fixedly connected to the inner top wall of the shell, a copper column is fixedly connected to the inner part of the static plate, a movable plate is movably connected to the inner part of the shell, a copper sleeve is fixedly connected to the inner part of the movable plate, a first wedge block is fixedly connected to the right side wall of the movable plate, a threaded rod is rotatably connected to the inner part of the shell, a second wedge block is connected to the bottom of the threaded rod in a threaded manner, the first wedge block is in inclined surface contact with the second wedge block, the copper column is matched with the copper sleeve, a limit sliding rod is fixedly connected to the inner part of the shell, and a limit sliding sleeve is fixedly connected to the top part of the movable plate and is slidably connected to the outer part of the limit sliding rod. The bypass device of the frequency converter can be quickly connected into the bypass when a single power unit fails, so that the normal operation of a normal power unit is prevented from being influenced, and the bypass device has the advantage of being independently connected.

Description

Bypass device of frequency converter

Technical Field

The utility model relates to the technical field of switching devices, in particular to a bypass device of a frequency converter.

Background

The frequency converter is an electric energy control device which converts a power frequency power supply into another frequency by utilizing the on-off action of a power semiconductor device, and along with the rapid development of modern power electronic technology and microelectronic technology, the high-voltage high-power frequency conversion speed regulating device is continuously mature, and the high-voltage problem which is difficult to solve at all times is solved in the past, and the device series connection or the unit series connection is well solved in recent years.

The patent of China patent grant publication No. CN214959281U discloses a bypass device of current sharing type high-voltage frequency converter power unit, make corresponding conducting bar laminating simultaneously with movable plate and quiet plate through spacing subassembly, make between the power unit through the cooperation between corresponding connector lug, conducting post, wire and the conducting bar form series circuit, be convenient for in the power unit any one break down all can be quick access bypass inside, but when above-mentioned device in-service use, can only make a plurality of power units access bypass inside simultaneously, unable individual access, unable satisfying the user demand, therefore, a frequency converter bypass device is needed to solve above-mentioned problem urgently.

Disclosure of utility model

(One) solving the technical problems

Aiming at the defects of the prior art, the utility model provides a frequency converter bypass device which has the advantages of single access function and the like, and solves the problems that a plurality of power units can only be accessed into the bypass at the same time, cannot be accessed independently and cannot meet the use requirement in the prior art.

(II) technical scheme

The technical scheme for solving the technical problems is as follows: the utility model provides a converter bypass device, includes the casing, fixedly connected with quiet board on the interior roof of casing, the inside fixedly connected with copper post of quiet board, the inside swing joint of casing has the movable plate, the inside fixedly connected with copper sheathing of movable plate, fixedly connected with first wedge on the right side wall of movable plate, the inside rotation of casing is connected with the threaded rod, the bottom threaded connection of threaded rod has the second wedge, first wedge and second wedge inclined plane contact, copper post and copper sheathing looks adaptation.

The beneficial effects of the utility model are as follows:

the bypass device of the frequency converter can be quickly connected into the bypass when a single power unit fails, so that the normal operation of a normal power unit is avoided, the practicability is higher, and the bypass device has the advantage of independent connection function.

On the basis of the technical scheme, the utility model can be improved as follows.

Further, the inside fixedly connected with spacing slide bar of casing, the top fixedly connected with spacing sliding sleeve of movable plate, spacing sliding sleeve sliding connection is in the outside of spacing slide bar, the outside spacing sliding sleeve's of movable plate quantity is two.

The movable plate is limited by the limiting sliding rod, so that the movable plate is prevented from shifting when moving, and the stability of the structure is improved.

Further, the outside fixedly connected with reset spring of spacing sliding sleeve, reset spring keeps away from the one end and the casing fixed connection of spacing sliding sleeve.

The adoption of the further scheme has the beneficial effects that the limiting sliding sleeve is pushed away by the elastic potential energy of the reset spring, so that the movable plate is far away from the static plate.

Further, fixedly connected with location slide bar on the interior roof of casing, the outside fixedly connected with location sliding sleeve of second wedge, location sliding sleeve sliding connection is in the outside of location slide bar.

The second wedge-shaped block is limited by the locating sliding rod, and the second wedge-shaped block is prevented from shifting when in lifting movement.

Further, the top fixedly connected with rotation handle of threaded rod, the wiring mouth has all been seted up on the lateral wall about the casing.

The threaded rod is convenient to drive by the rotating handle to rotate, and convenience in use is improved.

Further, the number of the movable plates is not less than three, and the shape of the static plate is L-shaped.

The adoption of the further scheme has the beneficial effect that the bypass can be quickly accessed when a single power unit fails by arranging a plurality of movable plates.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic structural view of a limiting sliding sleeve in the present utility model;

FIG. 3 is a bottom view of the structure of the present utility model;

Fig. 4 is an enlarged view of the present utility model at a.

In the figure: 1. a housing; 2. a static plate; 3. copper columns; 4. a movable plate; 5. a copper sleeve; 6. a first wedge block; 7. a threaded rod; 8. a second wedge block; 9. a limit slide bar; 10. a limit sliding sleeve; 11. a return spring; 12. positioning a slide bar; 13. positioning a sliding sleeve; 14. a rotating handle; 15. and a wiring port.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the embodiment, as shown in fig. 1-4, the bypass device of the frequency converter comprises a shell 1, wherein a static plate 2 is fixedly connected to the inner top wall of the shell 1, a copper column 3 is fixedly connected to the inner part of the static plate 2, a movable plate 4 is movably connected to the inner part of the shell 1, a copper sleeve 5 is fixedly connected to the inner part of the movable plate 4, the copper column 3 is matched with the copper sleeve 5, wiring ports 15 are formed in the left side wall and the right side wall of the shell 1, a worker needs to install two groups of wires into the copper column 3 and the copper sleeve 5 through the two wiring ports 15 in advance, and the two groups of wires can be inserted into the copper sleeve 5 through the copper column 3 to form electrical connection, so that the bypass can be quickly accessed to the inside of the frequency converter when a power unit fails.

The number of the movable plates 4 is not less than three, the appearance of the static plate 2 is L-shaped, and the bypass can be quickly accessed when a single power unit fails by arranging a plurality of movable plates 4.

The right side wall of the movable plate 4 is fixedly connected with a first wedge block 6, the inside of the shell 1 is rotationally connected with a threaded rod 7, the bottom of the threaded rod 7 is in threaded connection with a second wedge block 8, the first wedge block 6 is in inclined surface contact with the second wedge block 8, the inner top wall of the shell 1 is fixedly connected with a positioning slide rod 12, the outer part of the second wedge block 8 is fixedly connected with a positioning slide sleeve 13, and the positioning slide sleeve 13 is in sliding connection with the outer part of the positioning slide rod 12.

The top fixedly connected with rotation handle 14 of threaded rod 7 is convenient for drive threaded rod 7 through rotation handle 14 and rotates, because location slide bar 12 carries out spacingly to second wedge 8, and then makes second wedge 8 down move when threaded rod 7 rotates and extrudees and pushes away first wedge 6 to make movable plate 4 be close to quiet board 2, let copper post 3 peg graft in the inside of copper sheathing 5.

The inside fixedly connected with spacing slide bar 9 of casing 1, the top fixedly connected with spacing sliding sleeve 10 of movable plate 4, spacing sliding sleeve 10 sliding connection is in the outside of spacing slide bar 9, and the outside spacing sliding sleeve 10 of movable plate 4 quantity is two, carries out spacing to movable plate 4 through spacing slide bar 9, and skew when preventing stopping plate 4 removal improves the stability of structure.

The outside fixedly connected with reset spring 11 of spacing sliding sleeve 10, the one end that reset spring 11 kept away from spacing sliding sleeve 10 and casing 1 fixed connection, when the spacing state to first wedge 6 is cancelled in upward removal of second wedge 8, pushes away spacing sliding sleeve 10 through reset spring 11's elastic potential energy to make movable plate 4 keep away from static plate 2, make copper post 3 cancel the electricity connected state with copper sheathing 5.

Working principle:

The staff needs to adorn copper post 3 and copper sheathing 5 with two sets of electric wires respectively through two wiring mouths 15 in advance, when single power unit trouble, be convenient for drive threaded rod 7 through rotatory 14 and rotate, because location slide bar 12 is spacing to second wedge 8, and then make second wedge 8 downwardly moving extrude first wedge 6 when threaded rod 7 rotates and push away, thereby make corresponding movable plate 4 be close to static plate 2, let copper post 3 peg graft in copper sheathing 5's inside formation electric connection, thereby can the quick access bypass inside when making power unit trouble.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present utility model 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 therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A frequency converter bypass device comprising a housing (1), characterized in that: fixedly connected with quiet board (2) on the interior roof of casing (1), the inside fixedly connected with copper post (3) of quiet board (2), the inside swing joint of casing (1) has movable plate (4), the inside fixedly connected with copper sheathing (5) of movable plate (4), fixedly connected with first wedge (6) on the right side wall of movable plate (4), the inside rotation of casing (1) is connected with threaded rod (7), the bottom threaded connection of threaded rod (7) has second wedge (8), first wedge (6) and second wedge (8) inclined plane contact, copper post (3) and copper sheathing (5) looks adaptation.

2. A frequency converter bypass device according to claim 1, characterized in that: the novel sliding device is characterized in that a limiting sliding rod (9) is fixedly connected to the inside of the shell (1), a limiting sliding sleeve (10) is fixedly connected to the top of the movable plate (4), the limiting sliding sleeve (10) is slidably connected to the outside of the limiting sliding rod (9), and the number of the limiting sliding sleeves (10) outside the movable plate (4) is two.

3. A frequency converter bypass device according to claim 2, characterized in that: the outside fixedly connected with reset spring (11) of spacing sliding sleeve (10), the one end that reset spring (11) kept away from spacing sliding sleeve (10) is fixedly connected with casing (1).

4. A frequency converter bypass device according to claim 1, characterized in that: the inner top wall of the shell (1) is fixedly connected with a positioning slide rod (12), the outer part of the second wedge block (8) is fixedly connected with a positioning slide sleeve (13), and the positioning slide sleeve (13) is slidably connected to the outer part of the positioning slide rod (12).

5. A frequency converter bypass device according to claim 1, characterized in that: the top of threaded rod (7) fixedly connected with rotatory handle (14), wiring mouth (15) have all been seted up on the lateral wall about casing (1).

6. A frequency converter bypass device according to claim 1, characterized in that: the number of the movable plates (4) is not less than three, and the appearance of the static plate (2) is L-shaped.