CN213585600U

CN213585600U - Inverter protection device of three-phase four-wire system

Info

Publication number: CN213585600U
Application number: CN202023023557.7U
Authority: CN
Inventors: 许涛; 田昊; 谭鹏飞
Original assignee: Nanjing Anbeixu Power Technology Co ltd
Current assignee: Nanjing Anbeixu Power Technology Co ltd
Priority date: 2020-12-15
Filing date: 2020-12-15
Publication date: 2021-06-29
Anticipated expiration: 2030-12-15

Abstract

The utility model discloses an inverter protection device of three-phase four-wire system relates to inverter protection technical field, including protective housing, spring, adjustable fender and drive cavity, the protective housing includes shell body and interior casing, the shell body constitutes buffer chamber with the relative space of interior casing, buffer chamber's inner wall leans on the right side to have seted up first movable groove, the inner wall swing joint of first movable groove has the filter screen, the radiating groove has all been seted up on the right side of shell body and interior casing, the inner wall of protective housing is provided with the dc-to-ac converter body. The utility model discloses the expert can give off the heat that the dc-to-ac converter produced in the course of the work, makes outside its radiating groove discharge protective housing through setting up, can collect the dust on dc-to-ac converter surface by the filter screen under the effect of wind power simultaneously, makes the dust can be by centralized processing, makes this dc-to-ac converter protection device's function more diversified, has better shock attenuation effect simultaneously, improves this protection device's practicality.

Description

Inverter protection device of three-phase four-wire system

Technical Field

The utility model relates to an inverter protection device of three-phase four-wire system relates to inverter protection technical field.

Background

The inverter converts direct current electric energy (batteries and storage batteries) into alternating current (generally 220V,50Hz sine wave). It is composed of inverter bridge, control logic and filter circuit. The three-phase four-wire system is widely applied to air conditioners, home theaters, electric grinding wheels, electric tools, sewing machines, DVDs, VCDs, computers, televisions, washing machines, smoke exhaust ventilators, refrigerators, video recorders, massagers, fans, lighting and the like, and in a low-voltage distribution network, a power transmission line generally adopts a three-phase four-wire system, wherein three lines respectively represent three phases A, B and C, and the other line is a neutral line N or PEN.

The following problems exist in the prior art:

1. in the traditional three-phase four-wire system inverter protection device, heat generated in the working process of the inverter cannot be dissipated in the process of protecting the inverter;

2. the traditional inverter protection device of three-phase four-wire system is protecting the inverter, and is poor in the shock absorption effect of external impact force, so that the original purpose of effectively protecting the inverter cannot be achieved, the practicability of the inverter protection device of the three-phase four-wire system is poor, and therefore structural innovation is needed to be carried out to solve specific problems.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the present invention is to provide a three-phase four-wire inverter protection device, wherein one of the purposes is to provide a function of dissipating heat generated by the inverter during the operation process, and to solve the problem that the conventional three-phase four-wire inverter protection device cannot dissipate heat generated by the inverter during the operation process; the other purpose is to solve the problem that the traditional three-phase four-wire inverter protection device has poor damping effect on external impact force, so as to achieve the effect of improving the practicability of the protection device.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:

the utility model provides an inverter protection device of three-phase four-wire system, includes protective housing, spring, adjustable fender and drive cavity, the protective housing includes shell body and interior casing, the shell body constitutes the buffer cavity with the relative space of interior casing, the inner wall of buffer cavity leans on the right side to have seted up first movable groove, the inner wall swing joint of first movable groove has the filter screen, the radiating groove has all been seted up on the right side of shell body and interior casing, the inner wall of protective housing is provided with the dc-to-ac converter body, and all through being equipped with the spring the inner wall top left and right sides of protective housing, the top of spring and adjustable fender's bottom fixed connection, the right side of protective housing is provided with.

The utility model discloses technical scheme's further improvement lies in: the inner wall of the driving cavity is provided with a driving motor, the output end of the driving motor is provided with a transmission rod, and the transmission rod penetrates through the inside of the buffer cavity extending protection shell.

The utility model discloses technical scheme's further improvement lies in: the left end of transfer line is provided with the flabellum, the top and the bottom of transfer line all are provided with the rotation support, the rotation support is located the left side of the inside filter screen that sets up of buffer chamber, the left side of rotating the support all is provided with the cleaning brush.

The utility model discloses technical scheme's further improvement lies in: the inner wall of the buffer chamber is provided with a second movable groove close to the right bottom, the inner wall of the second movable groove is connected with a storage cabinet in a sliding mode, and the inner wall of the storage cabinet is movably connected with the bottom of the filter screen.

The utility model discloses technical scheme's further improvement lies in: the top of interior casing is provided with the fixed block, the rectangular channel has been seted up at the top of fixed block, the inner wall sliding connection of rectangular channel has the movable block.

The utility model discloses technical scheme's further improvement lies in: the damping device is characterized in that a damping sponge and an elastic piece are arranged at the bottom of the inner wall of the rectangular groove, and the outer surface of the elastic piece is fixedly connected with the damping sponge.

Owing to adopted above-mentioned technical scheme, the utility model discloses relative prior art, the technological progress who gains is:

1. the utility model provides an inverter protection device of three-phase four-wire system, through designing ingeniously, adopt driving motor, the transfer line, the flabellum, rotating bracket and cleaning brush combine with this inverter protection device, can give off the heat that the dc-to-ac converter produced in the course of the work, outside making its radiating groove discharge protective housing through setting up, can be collected the dust on dc-to-ac converter surface by the filter screen under the effect of wind power simultaneously, the rethread rotates the rotation of support and cleaning brush, make the dust can be centralized processing, make this inverter protection device's function more diversified.

2. The utility model provides an inverter protection device of three-phase four-wire system, through adopting fixed block, rectangular channel, movable block, shock attenuation sponge and shell fragment and this inverter protection device combination to set up, when this protection device bears external impact, external impact can be cushioned in the cushion chamber, and the movable block moves down in the fixed block simultaneously, and the shock attenuation sponge can absorb the impact force with the shell fragment, makes this protection device have better shock attenuation effect, improves this protection device's practicality.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of the driving chamber of the present invention;

FIG. 3 is an enlarged schematic view of the structure at A of FIG. 1 according to the present invention;

fig. 4 is a schematic view of the connection structure of the fixed block and the movable block of the present invention.

In the figure: 1. a protective shell; 101. an outer housing; 102. an inner housing; 103. a buffer chamber; 104. a heat sink; 105. an inverter body; 2. a spring; 3. a movable baffle; 4. a drive chamber; 401. a drive motor; 402. a transmission rod; 5. a fan blade; 6. rotating the bracket; 7. a cleaning brush; 8. a first movable slot; 9. a filter screen; 10. a second movable slot; 11. a storage cabinet; 12. a fixed block; 13. a rectangular groove; 14. a movable block; 15. a shock absorbing sponge; 16. an elastic sheet.

Detailed Description

The present invention will be described in further detail with reference to the following examples:

as shown in fig. 1-4, the present invention provides a three-phase four-wire inverter protection device, which comprises a protection casing 1, a spring 2, a movable baffle 3 and a driving chamber 4, wherein the protection casing 1 comprises an outer casing 101 and an inner casing 102, a buffer chamber 103 is formed by the relative space between the outer casing 101 and the inner casing 102, a first movable groove 8 is formed on the inner wall of the buffer chamber 103 near the right, a filter screen 9 is movably connected to the inner wall of the first movable groove 8, heat dissipation grooves 104 are formed on the right sides of the outer casing 101 and the inner casing 102, an inverter body 105 is arranged on the inner wall of the protection casing 1, the spring 2 is arranged on each of the left and right sides of the top of the inner wall of the protection casing 1, the top of the spring 2 is fixedly connected with the bottom of the movable baffle 3, the driving chamber 4 is arranged on the right side of the protection casing 1, the transmission rod 402 penetrates through the buffer cavity 103 and extends into the protective shell 1, the fan blade 5 is arranged at the left end of the transmission rod 402, the rotating support 6 is arranged at the top and the bottom of the transmission rod 402, the rotating support 6 is positioned at the left side of the filter screen 9 arranged in the buffer cavity 103, the cleaning brush 7 is arranged at the left side of the rotating support 6, the second movable groove 10 is arranged near the right bottom of the inner wall of the buffer cavity 103, the inner wall of the second movable groove 10 is connected with the containing cabinet 11 in a sliding manner, the inner wall of the containing cabinet 11 is movably connected with the bottom of the filter screen 9, the fixed block 12 is arranged at the top of the inner shell 102, the rectangular groove 13 is arranged at the top of the fixed block 12, the movable block 14 is connected with the inner wall of the rectangular groove 13 in a sliding manner, the damping sponge 15 and the elastic sheet 16 are arranged at the bottom of the inner, the inverter body 105 is placed in the protection inner 1, under the elastic action of the spring 2, the movable baffle 3 can enable the protection shell 1 to be in a sealing state to protect the inverter body 105, when the outer shell 101 in the protection shell 1 is subjected to external impact force, the impact force passes through the outer shell 101 and is buffered in a buffer chamber 103 formed by the outer shell 101 and the inner shell 102, meanwhile, the movable block 14 moves in a rectangular groove 13 of a region formed by the fixed block 12, when the movable block 14 moves to a certain degree in the rectangular groove 13, the movable block is in contact with the damping sponge 15 and the elastic sheet 16, the damping sponge 15 and the elastic sheet 16 can absorb the impact force, the damping effect is achieved, the inverter body 105 is prevented from being influenced by the external impact force, the driving motor 401 arranged in the driving chamber 4 operates, and the fan blades 5 arranged at the end part of the driving rod 402 rotate, the heat generated by the inverter body 105 and the protective shell 1 in the working process is transferred and discharged out of the protective shell 1 through the arranged heat dissipation groove 104, meanwhile, dust generated by the inverter body 105 and the protective shell 1 in the working process is collected by the filter screen 9 under the action of wind power, and then the dust can be cleaned by the cleaning brush 7 to enter the storage cabinet 11 through the rotation of the rotating support 6 and the cleaning brush 7, so that the storage cabinet 11 is controlled to move in the second movable groove 10, and the dust accumulated in the storage cabinet 11 can be cleaned in a centralized manner.

The operation principle of the three-phase four-wire inverter protection device will be described in detail below.

As shown in fig. 1-4, when the three-phase four-wire inverter protection device works, when an external impact force is applied to the outer shell 101 in the protective shell 1, the impact force is buffered in the buffer chamber 103, the movable block 14 moves in the rectangular groove 13 formed in the fixed block 12, the shock absorption sponge 15 and the elastic sheet 16 can absorb the impact force, and have a shock absorption effect, the driving motor 401 operates, the fan blades 5 rotate, so that heat generated in the working process of the inverter body 105 is discharged out of the protective shell 1 through the arranged heat dissipation groove 104, meanwhile, dust generated in the working process of the inverter body 105 is collected by the filter screen 9 under the action of the wind force, and then the dust can be cleaned by the cleaning brush 7 into the storage cabinet 11 through the rotation of the rotating bracket 6 and the cleaning brush 7.

The present invention has been described in detail with reference to the above general description, but it will be apparent to one of ordinary skill in the art that modifications and improvements can be made to the invention. Therefore, modifications or improvements without departing from the spirit of the invention are within the scope of the invention.

Claims

1. The utility model provides an inverter protection device of three-phase four-wire system, includes protective housing (1), spring (2), adjustable fender (3) and drive cavity (4), its characterized in that: protective housing (1) includes shell body (101) and interior casing (102), shell body (101) constitutes buffer chamber (103) with the relative space of interior casing (102), first activity groove (8) have been seted up by the right side to the inner wall of buffer chamber (103), the inner wall swing joint of first activity groove (8) has filter screen (9), radiating groove (104) have all been seted up on the right side of shell body (101) and interior casing (102), the inner wall of protective housing (1) is provided with inverter body (105), and the inner wall top left and right sides of protective housing (1) all through being equipped with spring (2), the top of spring (2) and the bottom fixed connection of adjustable fender (3), the right side of protective housing (1) is provided with drive chamber (4).

2. A three-phase four-wire inverter protection device according to claim 1, characterized in that: the inner wall of the driving cavity (4) is provided with a driving motor (401), the output end of the driving motor (401) is provided with a transmission rod (402), and the transmission rod (402) penetrates through the buffer cavity (103) and extends into the protective shell (1).

3. A three-phase four-wire inverter protection device according to claim 2, characterized in that: the left end of transfer line (402) is provided with flabellum (5), the top and the bottom of transfer line (402) all are provided with and rotate support (6), rotate support (6) and be located the left side of inside filter screen (9) that sets up of buffer chamber (103), the left side of rotating support (6) all is provided with cleaning brush (7).

4. A three-phase four-wire inverter protection device according to claim 1, characterized in that: the inner wall of buffer chamber (103) is provided with second activity groove (10) near the right bottom, the inner wall sliding connection in second activity groove (10) has storage cabinet (11), the inner wall of storage cabinet (11) and the bottom swing joint of filter screen (9).

5. A three-phase four-wire inverter protection device according to claim 1, characterized in that: the top of interior casing (102) is provided with fixed block (12), rectangular channel (13) have been seted up at the top of fixed block (12), the inner wall sliding connection of rectangular channel (13) has movable block (14).

6. A three-phase four-wire inverter protection device according to claim 5, characterized in that: the damping device is characterized in that a damping sponge (15) and an elastic piece (16) are arranged at the bottom of the inner wall of the rectangular groove (13), and the outer surface of the elastic piece (16) is fixedly connected with the damping sponge (15).