CN208656675U - A kind of safe frequency converter of electrostatic protection - Google Patents

Abstract

The utility model discloses a kind of safe frequency converters of electrostatic protection, belong to converter technology field.A kind of safe frequency converter of electrostatic protection, including casing, upper cover plate, lower cover plate, controller, the upper cover plate is rotatably connected on the side wall of casing, lower cover plate is plugged on the bottom of upper cover plate, controller is fixedly connected on the top side wall of casing, and electrical installation bin, control panel installation bin, wiring installation bin are successively arranged inside casing, is installed with electrical component in electrical installation bin, it is installed with control panel in control panel installation bin, is installed with connecting terminal in wiring installation bin；The mounting groove being distributed in a ring is offered at the top of casing, mounting groove inner wall is embedded with dust absorption fan；The utility model structure is simple, easy to operate, is carried out by the inside to frequency converter through, dedusting, to reduce the generation of electrostatic, while can be realized during ventilation, dedusting the good earth of frequency converter, the adverse effect of electrostatic is effectively reduced.

Description

A kind of safe frequency converter of electrostatic protection

Technical field

The utility model relates to converter technology field more particularly to a kind of safe frequency converters of electrostatic protection.

Background technique

Frequency converter is to be handed over using converter technique and microelectric technique by changing motor frequency mode of working power supply to control The electric control appliance of galvanic electricity motivation, frequency converter is mainly by rectification, filtering, inversion, brake unit, driving unit, detection unit The composition such as microprocessing unit, supply voltage required for frequency converter can provide it according to the actual needs of motor, and then reach The purpose of energy conservation, speed regulation, in addition, frequency converter is there are also many defencive functions, such as overcurrent, over-voltage, overload protection etc., with The continuous improvement of industrial automatization, frequency converter also have been widely used.

Frequency converter generally used now is produced using the electronics of the control production power of high-tech semiconductor device support mostly Product, if improper use, just will appear operation event so easily being influenced by ambient enviroments such as temperature, humidity, vibration, electrostatic Barrier, leads to frequency converter cisco unity malfunction, or even cause the premature damage of frequency converter, and influences the normal operation of production equipment, For electrostatic, electronic component in frequency converter, be to electrostatic it is very sensitive, such as by after electrostatic discharges, will make At electronic component soft breakdown, wiring board is caused to can not work normally, thus when carrying out equipment maintenance, especially more When changing wiring board, influence of the electrostatic to frequency converter should be prevented.

Thus need to design a kind of frequency converter of electrostatic protection safety.

Utility model content

Purpose of the utility model is to solve a kind of electrostatic mentioned, and proposed in above-mentioned background technique to prevent Protect safe frequency converter.

To achieve the goals above, the utility model adopts the technical scheme that

A kind of safe frequency converter of electrostatic protection, including casing, upper cover plate, lower cover plate, controller, the upper cover plate turn The dynamic side wall for being connected to casing, the lower cover plate are plugged on the bottom of upper cover plate, and the controller is fixedly connected on cabinet The top side wall of shell is successively arranged electrical installation bin, control panel installation bin, wiring installation bin, institute inside the casing It states and is installed with electrical component in electrical installation bin, be installed with control panel in the control panel installation bin, in the wiring installation bin It is installed with connecting terminal；The mounting groove being distributed in a ring is offered at the top of the casing, the mounting groove inner wall is embedded There is dust absorption fan, the outlet air end of the dust absorption fan is connected with dust collecting sleeve by connecting hose, is equipped with dust suction in the dust collecting sleeve Net, the dust collecting sleeve are connected with driving assembly by conduit, and the driving component is by driving column to be connected with grounding plate, institute Grounding plate is stated to be fixedly linked far from one end of driving column with casing side wall.

Preferably, the inner wall of the upper cover plate is fixedly connected with symmetrical grafting block, and the inner wall of the lower cover plate offers The inserting groove to match with grafting block.

Preferably, the grounding plate is using elastic copper sheet, and the bottom of the grounding plate is fixedly connected with gold Belong to contact head.

Preferably, the driving component includes seal pipe, sealing push-plate, the conduit one end and sealing far from dust collecting sleeve The seal of tube is connected, and the sealing push-plate is slidably and sealingly connected in seal pipe, is fixedly connected with push rod on the sealing push-plate, institute Push rod is stated through seal pipe and is extended outwardly.

Preferably, one end that the push rod is placed in outside seal pipe is fixedly connected with bar shaped rack gear, the bar shaped rack gear engagement It is connected with half gear, is fixedly connected with convex block on half gear；The mounting groove offers through-hole close to the inner wall of convex block, institute It states driving column to be slidably connected in through-hole, the top of the driving column offsets with convex block, the bottom end of the driving column and ground connection gold Belong to plate to be fixedly linked.

Preferably, check valve is connected on the conduit.

Preferably, the outer wall of the driving column is socketed with reset spring, the both ends of the reset spring respectively with driving column Outer wall and through-hole wall are fixedly linked.

Preferably, the bottom end of the dust collecting sleeve is fixedly connected with multiple equally distributed dirt filtrating screens.

Preferably, the controller is electrical connected with dust absorption fan.

Compared with prior art, the utility model provides a kind of safe frequency converter of electrostatic protection, has following beneficial to effect Fruit:

1, the safe frequency converter of the electrostatic protection, by being equipped with casing, upper cover plate, lower cover plate, and upper cover plate rotation connects The side wall in casing is connect, when needing to carry out frequency converter dismounting maintenance, dust absorption fan work is controlled by controller, is inhaled Dirt blower during the work time, attracts the air in casing, and the dusty gas in casing is soft through connecting Pipe is absorbed into dust collecting sleeve, realizes the absorption to dust, to prevent dust from generating electrostatic, to the control panel in casing and is connect Line terminals adversely affect, and the dusty gas entered in dust collecting sleeve enters drive through conduit after the suction-operated of dust absorption net In dynamic component, driving assembly passes through driving column in the process of work and drives grounding plate by ground face contact, to realize The ground connection of frequency converter rapidly reveals the electrostatic charge generated in frequency converter, to prevent electrostatic charging, to work people to the earth The service work of member brings adverse effect.

2, the safe frequency converter of the electrostatic protection is fixedly connected with symmetrical grafting block by the inner wall in upper cover plate, under The inner wall of cover board offers the inserting groove to match with grafting block, using grafting block with the matching of inserting groove, to facilitate upper cover Dismounting of the plate with lower cover plate.

3, the safe frequency converter of the electrostatic protection, grounding plate using elastic copper sheet, be convenient for by the elasticity using elastic copper sheet Grounding plate is deformed under the action of driving column, using the electric conductivity of elastic copper sheet, is easy to implement the ground connection of frequency converter, It is revealed with the electrostatic charge that will be generated in frequency converter to the earth, and is fixedly connected with metal contact in the bottom of grounding plate Head, convenient for being grounded metal plate and being contacted with the good of ground by metal contact head.

4, the safe frequency converter of the electrostatic protection, by being equipped with driving assembly, driving assembly includes seal pipe, seals push-plate, The one end of conduit far from dust collecting sleeve is connected with the sealing seal of tube, enters in seal pipe by dust collecting sleeve dusty gas through conduit, With increasing for the gas flow entered in seal pipe, air pressure push sealing push-plate slided in seal pipe, sealing push-plate to Push rod is driven to move in seal pipe, push rod passes through the rotation of half gear of bar shaped rack drives in the process of moving, and half gear exists Driving column is driven to stretch out through-hole by convex block during rotation, driving column drives grounding plate well to connect with ground in turn Touching, thus the effect being grounded.

5, the safe frequency converter of the electrostatic protection, by being connected with check valve on conduit, conduit is convenient in the presence of check valve In gas orderly enter in seal pipe.

6, the safe frequency converter of the electrostatic protection, by being socketed with reset spring in the outer wall of driving column, and reset spring Both ends are fixedly linked with driving column outer wall and through-hole outer wall respectively, and the presence of reset spring is easy to implement the reset of driving column.

7, the safe frequency converter of the electrostatic protection is fixedly connected with multiple equally distributed dust filterings by the bottom end in dust collecting sleeve Net, the presence of dirt filtrating screen are convenient for carrying out further dedusting to the gas entered in seal pipe.

8, the safe frequency converter of the electrostatic protection, by the way that controller and dust sucting motor are electrical connected, convenient for passing through controller Control the work of dust absorption fan.

It is not directed to part in the device to be the same as those in the prior art or can be realized by using the prior art, the utility model Structure is simple, easy to operate, is carried out by the inside to frequency converter through, dedusting, to reduce the generation of electrostatic, while logical The adverse effect of electrostatic is effectively reduced in the good earth that can be realized frequency converter during wind, dedusting.

Detailed description of the invention

Fig. 1 be the utility model proposes a kind of safe frequency converter of electrostatic protection perspective view；

Fig. 2 be the utility model proposes a kind of safe transduser cabinet shell of electrostatic protection structural schematic diagram；

Fig. 3 be the utility model proposes a kind of safe frequency converter Fig. 2 of electrostatic protection in part A structural schematic diagram；

Fig. 4 be the utility model proposes a kind of structure that is connect with dirt filtrating screen of the safe frequency converter dust collecting sleeve of electrostatic protection show It is intended to；

Fig. 5 be the utility model proposes a kind of safe frequency converter lower cover plate of electrostatic protection structural schematic diagram.

In figure: 1, casing；2, upper cover plate；3, lower cover plate；4, control panel；5, connecting terminal；6, mounting groove；7, dust suction Blower；8, hose is connected；9, dust collecting sleeve；10, conduit；11, driving assembly；1101, seal pipe；1102, push-plate is sealed；12, it drives Dynamic column；13, grounding plate；14, grafting block；15, inserting groove；16, push rod；17, bar shaped rack gear；18, half gear；19, convex block； 20, through-hole；21, reset spring；22, dirt filtrating screen.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.

In the description of the present invention, it should be understood that term " on ", "lower", "front", "rear", "left", "right", The orientation or positional relationship of the instructions such as "top", "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.

Embodiment 1:

Referring to Fig.1-3, the safe frequency converter of a kind of electrostatic protection, including casing 1, upper cover plate 2, lower cover plate 3, control Device, upper cover plate 2 are rotatably connected on the side wall of casing 1, and lower cover plate 3 is plugged on the bottom of upper cover plate 2, and controller is fixedly connected Electrical installation bin, control panel installation bin, wiring installation are successively arranged inside the top side wall of casing 1, casing 1 Storehouse is installed with electrical component in electrical installation bin, control panel 4 is installed in control panel installation bin, is installed in wiring installation bin Connecting terminal 5；The top of casing 1 offers the mounting groove 6 being distributed in a ring, and 6 inner wall of mounting groove is embedded with dust absorption fan 7, the outlet air end of dust absorption fan 7 is connected with dust collecting sleeve 9 by connecting hose 8, is equipped with dust absorption net in dust collecting sleeve 9, dust collecting sleeve 9 passes through Conduit 10 is connected with driving assembly 11, and driving assembly 11 is by driving column 12 to be connected with grounding plate 13, grounding plate 13 One end far from driving column 12 is fixedly linked with 1 side wall of casing；By being equipped with casing 1, upper cover plate 2, lower cover plate 3, And upper cover plate 2 is rotatably connected on the side wall of casing 1, when needing to carry out frequency converter dismounting maintenance, passes through controller control Dust absorption fan 7 processed works, and dust absorption fan 7 during the work time, attracts the air in casing 1, by casing 1 Interior dusty gas is absorbed into dust collecting sleeve 9 through connecting hose 8, realizes the absorption to dust, right to prevent dust from generating electrostatic Control panel 4 and connecting terminal 5 in casing 1 adversely affect, and enter the dusty gas in dust collecting sleeve 9 through dust absorption net Suction-operated after entered in driving assembly 11 through conduit 10, driving assembly 11 in the process of work by driving 12 band of column Dynamic grounding plate 13 is by ground face contact, thus realize the ground connection of frequency converter, the electrostatic charge generated in frequency converter is rapid To the earth reveal, to prevent electrostatic charging, adverse effect is brought to the service work of staff.

The inner wall of upper cover plate 2 is fixedly connected with symmetrical grafting block 14, and the inner wall of lower cover plate 3 offers and 14 phase of grafting block Matched inserting groove 15；Using grafting block 14 with the matching of inserting groove 15, to facilitate upper cover plate 2 with the dismounting of lower cover plate 3.

Grounding plate 13 is using elastic copper sheet, and the bottom of grounding plate 13 is fixedly connected with metal contact head；Benefit It is deformed under the action of driving column 12 with the elasticity of elastic copper sheet convenient for grounding plate 13, utilizes the conduction of elastic copper sheet Property, it is easy to implement the ground connection of frequency converter, the electrostatic charge generated in frequency converter is revealed to the earth, and in grounding plate 13 Bottom be fixedly connected with metal contact head, connect convenient for by metal contact head, being grounded metal plate 13 and the good of ground Touching.

Embodiment 2:

Referring to Fig.1-5, the safe frequency converter of a kind of electrostatic protection, including casing 1, upper cover plate 2, lower cover plate 3, control Device, upper cover plate 2 are rotatably connected on the side wall of casing 1, and lower cover plate 3 is plugged on the bottom of upper cover plate 2, and controller is fixedly connected Electrical installation bin, control panel installation bin, wiring installation are successively arranged inside the top side wall of casing 1, casing 1 Storehouse is installed with electrical component in electrical installation bin, control panel 4 is installed in control panel installation bin, is installed in wiring installation bin Connecting terminal 5；The top of casing 1 offers the mounting groove 6 being distributed in a ring, and 6 inner wall of mounting groove is embedded with dust absorption fan 7, the outlet air end of dust absorption fan 7 is connected with dust collecting sleeve 9 by connecting hose 8, is equipped with dust absorption net in dust collecting sleeve 9, dust collecting sleeve 9 passes through Conduit 10 is connected with driving assembly 11, and driving assembly 11 is by driving column 12 to be connected with grounding plate 13, grounding plate 13 One end far from driving column 12 is fixedly linked with 1 side wall of casing；By being equipped with casing 1, upper cover plate 2, lower cover plate 3, And upper cover plate 2 is rotatably connected on the side wall of casing 1, when needing to carry out frequency converter dismounting maintenance, passes through controller control Dust absorption fan 7 processed works, and dust absorption fan 7 during the work time, attracts the air in casing 1, by casing 1 Interior dusty gas is absorbed into dust collecting sleeve 9 through connecting hose 8, realizes the absorption to dust, right to prevent dust from generating electrostatic Control panel 4 and connecting terminal 5 in casing 1 adversely affect, and enter the dusty gas in dust collecting sleeve 9 through dust absorption net Suction-operated after entered in driving assembly 11 through conduit 10, driving assembly 11 in the process of work by driving 12 band of column Dynamic grounding plate 13 is by ground face contact, thus realize the ground connection of frequency converter, the electrostatic charge generated in frequency converter is rapid To the earth reveal, to prevent electrostatic charging, adverse effect is brought to the service work of staff.

Driving assembly 11 includes seal pipe 1101, sealing push-plate 1102, conduit 10 one end and seal pipe far from dust collecting sleeve 9 1101 sealings are connected, and sealing push-plate 1102 is slidably and sealingly connected in seal pipe 1101, seal and are fixedly connected on push-plate 1102 Push rod 16, push rod 16 is through seal pipe 1101 and extends outwardly；

One end that push rod 16 is placed in outside seal pipe 1101 is fixedly connected with bar shaped rack gear 17, and the engagement of bar shaped rack gear 17 is connected with Half gear 18 is fixedly connected with convex block 19 on half gear 18；Mounting groove 6 offers through-hole 20 close to the inner wall of convex block 19, driving Column 12 is slidably connected in through-hole 20, and the top of driving column 12 offsets with convex block 19, drives bottom end and the grounding plate of column 12 13 are fixedly linked；By being equipped with driving assembly 11, driving assembly 11 includes seal pipe 1101, sealing push-plate 1102, and conduit 10 is remote One end from dust collecting sleeve 9 is connected with the sealing of seal pipe 1101, enters seal pipe through conduit 10 by 9 dusty gas of dust collecting sleeve In 1101, with increasing for the gas flow entered in seal pipe 1101, air pressure pushes sealing push-plate 1102 in seal pipe 1101 Interior sliding, to drive push rod 16 to move in seal pipe 1101, push rod 16 passes through sealing push-plate 1102 in the process of moving Bar shaped rack gear 17 drives the rotation of half gear 18, and it is logical that half gear 18 drives driving column 12 to stretch out by convex block 19 in the course of rotation Hole 20, driving column 12 and then drive grounding plate 13 are well contacted with ground, to realize the effect of frequency converter ground connection.

Embodiment 3:

Referring to Fig. 2, a kind of safe frequency converter of electrostatic protection is substantially the same manner as Example 2, moreover, conduit 10 On be connected with check valve；The presence of check valve enters in seal pipe 1101 convenient for the gas in conduit 10 is orderly.

Embodiment 4:

Referring to Fig. 3, a kind of safe frequency converter of electrostatic protection is substantially the same manner as Example 2, moreover, drives column 12 outer wall is socketed with reset spring 21, the both ends of reset spring 21 respectively with driving 12 outer wall of column and 20 inner wall stationary phase of through-hole Even；The presence of reset spring 21 is easy to implement the reset of driving column 12.

Embodiment 5:

Referring to Fig. 4, a kind of safe frequency converter of electrostatic protection is substantially the same manner as Example 1, moreover, dust collecting sleeve 9 Bottom end be fixedly connected with multiple equally distributed dirt filtrating screens 22；The presence of dirt filtrating screen 22 is convenient for entering in seal pipe 1101 Gas carry out further dedusting.

Embodiment 6:

Referring to Fig. 2, a kind of safe frequency converter of electrostatic protection is substantially the same manner as Example 1, moreover, controller It is electrical connected with dust absorption fan 7；Convenient for controlling the work of dust absorption fan 7 by controller.

The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model Within enclosing.

Claims (9)

1. a kind of safe frequency converter of electrostatic protection, including casing (1), upper cover plate (2), lower cover plate (3), controller, described Upper cover plate (2) is rotatably connected on the side wall of casing (1), and the lower cover plate (3) is plugged on the bottom of upper cover plate (2), described Controller is fixedly connected on the top side wall of casing (1), which is characterized in that is successively arranged inside the casing (1) Electrical installation bin, control panel installation bin, wiring installation bin are installed with electrical component, the control panel in the electrical installation bin It is installed in installation bin control panel (4), connecting terminal (5) is installed in the wiring installation bin；The top of the casing (1) Portion offers the mounting groove (6) being distributed in a ring, and mounting groove (6) inner wall is embedded with dust absorption fan (7), the dust absorption fan (7) outlet air end is connected with dust collecting sleeve (9) by connecting hose (8), and dust absorption net, the dust suction are equipped in the dust collecting sleeve (9) Bag (9) is connected with driving assembly (11) by conduit (10), and the driving component (11) is by driving column (12) to be connected with ground connection Metal plate (13), the grounding plate (13) are fixedly linked far from one end of driving column (12) with casing (1) side wall.

2. the safe frequency converter of a kind of electrostatic protection according to claim 1, which is characterized in that the upper cover plate (2) it is interior Wall is fixedly connected with symmetrical grafting block (14), and the inner wall of the lower cover plate (3) is offered to be inserted with what grafting block (14) matched Access slot (15).

3. the safe frequency converter of a kind of electrostatic protection according to claim 1, which is characterized in that the grounding plate (13) Metal contact head is fixedly connected with using the bottom of elastic copper sheet, and the grounding plate (13).

4. the safe frequency converter of a kind of electrostatic protection according to claim 1, which is characterized in that the driving component (11) packet Seal pipe (1101), sealing push-plate (1102) are included, one end and seal pipe (1101) far from dust collecting sleeve (9) of the conduit (10) are close Envelope is connected, and the sealing push-plate (1102) is slidably and sealingly connected in seal pipe (1101), solid on the sealing push-plate (1102) Surely it is connected with push rod (16), the push rod (16) is through seal pipe (1101) and extends outwardly.

5. the safe frequency converter of a kind of electrostatic protection according to claim 4, which is characterized in that the push rod (16) is placed in close The one end of tube sealing (1101) outside is fixedly connected with bar shaped rack gear (17), and bar shaped rack gear (17) engagement is connected with half gear (18), convex block (19) are fixedly connected on half gear (18)；Inner wall of the mounting groove (6) close to convex block (19) offers Through-hole (20), the driving column (12) are slidably connected in through-hole (20), the top of driving column (12) and convex block (19) phase It supports, the bottom end of driving column (12) is fixedly linked with grounding plate (13).

6. the safe frequency converter of a kind of electrostatic protection according to claim 1 or 4, which is characterized in that on the conduit (10) It is connected with check valve.

7. the safe frequency converter of a kind of electrostatic protection according to claim 1 or 5, which is characterized in that the driving column (12) Outer wall be socketed with reset spring (21), the both ends of the reset spring (21) respectively with driving column (12) outer wall and through-hole (20) Inner wall is fixedly linked.

8. the safe frequency converter of a kind of electrostatic protection according to claim 1, which is characterized in that the bottom of the dust collecting sleeve (9) End is fixedly connected with multiple equally distributed dirt filtrating screens (22).

9. the safe frequency converter of a kind of electrostatic protection according to claim 1, which is characterized in that the controller and dust suction wind Machine (7) is electrical connected.