CN114050707B

CN114050707B - Isolating mechanism and converter of adaptation thereof

Info

Publication number: CN114050707B
Application number: CN202210031414.5A
Authority: CN
Inventors: 李宏艳; 邓金艳
Original assignee: Shenzhen Feizhao Technology Co ltd
Current assignee: Shenzhen Feizhao Technology Co ltd
Priority date: 2022-01-12
Filing date: 2022-01-12
Publication date: 2022-03-15
Anticipated expiration: 2042-01-12
Also published as: CN114050707A

Abstract

The invention belongs to the technical field of frequency converters, and particularly relates to an isolation mechanism and a frequency converter adaptive to the isolation mechanism, which comprises a box body, wherein the box body comprises a protection cavity and an installation cavity, the frequency converter is assembled in the installation cavity, a heat dissipation mechanism is arranged in the protection cavity, a plugging mechanism is arranged in the protection cavity, the plugging mechanism is positioned below the heat dissipation mechanism and matched with the heat dissipation mechanism, and a dust removal mechanism is arranged in the protection cavity and acts on the upper surface of the heat dissipation mechanism, wherein when the plugging mechanism operates, the heat dissipation mechanism is plugged, and as the plugging mechanism continues to operate, the lower surface of the dust removal mechanism gradually adheres to the upper surface of the plugging mechanism. According to the invention, the output air opening of the heat dissipation mechanism can be blocked when dirt is cleaned, so that dust adhered to the interior of the box body can be completely scraped, and the cleanliness of the interior of the frequency converter body cannot be damaged.

Description

Isolating mechanism and converter of adaptation thereof

Technical Field

The invention belongs to the technical field of frequency converters, and particularly relates to an isolation mechanism and a frequency converter adaptive to the isolation mechanism.

Background

The converter is the power control equipment who uses commonly used in the mill, it mainly is application frequency conversion technique and microelectronic technique, control alternating current motor's power control equipment through changing motor working power supply frequency mode, the inside circuit of converter is extremely not high temperature resistant, and the circuit during operation can produce a large amount of heats, so people can install heat abstractor additional on the converter, for guaranteeing that the heat dissipation in-process can not have external filth pollution circuit, still can install the mechanism that the filth was kept apart to the one deck additional in the heat abstractor outside.

Although the existing isolating mechanism for the frequency converter can isolate dirt, the isolating mechanism can be polluted by the dirt, so that outside air cannot smoothly enter the inside of the frequency converter, therefore, when the isolating mechanism is configured, some accessories for cleaning the isolating mechanism are also added in a conventional mode, when the isolating mechanism is cleaned by the accessories such as a scraper, the surface of the accessories can only be cleaned, some fine dirt is probably extruded into the isolating mechanism when being cleaned, and the fine dirt can possibly flow into the inside of the frequency converter along with external air flow during subsequent ventilation and heat dissipation, so that the limitation is large.

Disclosure of Invention

The invention aims to provide an isolation mechanism and a frequency converter matched with the isolation mechanism, which can block an output air opening of a heat dissipation mechanism when dirt is cleaned, so that dust adhered to the interior of a box body can be completely scraped.

The technical scheme adopted by the invention is as follows:

an isolating mechanism and a frequency converter adapted with the isolating mechanism comprise:

the box body comprises a protection cavity and a mounting cavity, and the frequency converter is assembled in the mounting cavity;

the heat dissipation mechanism is arranged inside the protection cavity;

the plugging mechanism is arranged in the protective cavity, is positioned below the heat dissipation mechanism and is matched with the heat dissipation mechanism;

the dust removal mechanism is arranged in the protection cavity and acts on the upper surface of the heat dissipation mechanism;

when the plugging mechanism runs, the heat dissipation mechanism is plugged, and the lower surface of the dust removal mechanism is gradually attached to the upper surface of the plugging mechanism along with the continuous running of the plugging mechanism.

The improved structure of the dust removal box comprises a box body and is characterized in that an upper cavity and a lower cavity are formed in the box body, the upper cavity is arranged on the outer sides of a heat dissipation mechanism and a dust removal mechanism, the lower cavity is arranged on the outer side of a blocking mechanism, an open slot communicated with the outside is formed in one side of the upper cavity, and the lower cavity is communicated with the inside of an installation cavity.

The heat dissipation mechanism comprises a driving motor, a heat dissipation fan and a filter screen, wherein the driving motor is fixedly installed in the upper cavity, the driving motor is electrically connected with an external power supply, the heat dissipation fan is fixedly installed at the output end of the driving motor, the filter screen is fixedly embedded in the open slot, a partition board is fixedly embedded in the box body, a plurality of filtering holes are formed in the partition board at equal intervals, and the upper cavity and the lower cavity are mutually communicated through the plurality of filtering holes.

The plugging mechanism comprises two lifting support plates, two linkage support plates and a plurality of butt-joint columns, wherein the two linkage support plates are located on two sides of the lifting support plates, the butt-joint columns are fixedly connected above the lifting support plates and the linkage support plates at equal intervals, and the butt-joint columns respectively correspond to the plurality of filtering holes.

The bottom end of the lifting support plate is provided with a lifting mechanism, the bottom end of the linkage support plate is fixedly connected with a guide rod, a fixed sleeve is sleeved outside the guide rod in a sliding manner, and the bottom end of the fixed sleeve is fixedly connected with the bottom end of the inner wall of the lower cavity;

elevating system includes fixed case, driving gear, linkage rack and linkage bull stick, fixed case fixed mounting is in the inside of cavity down, driving gear and linkage gear all rotate the inside of connecting in fixed case, just driving gear and linkage gear intermeshing, the linkage rack sets up to two, two the linkage rack respectively with driving gear and linkage gear intermeshing, and two the top of linkage rack all runs through the top of fixed case and be connected with the lower fixed surface of lift extension board, the linkage bull stick run through fixed case and with the axle center department fixed connection of driving gear one side.

The dust removal mechanism comprises a pull rod and a scraper, the pull rod is inserted into the upper cavity in a sliding mode, the scraper is arranged above the filter hole, one side of the scraper is fixedly connected with one end of the pull rod, and a sewage discharge groove communicated with the interior of the upper cavity is further formed in one side of the box body.

The inner part of the upper cavity is further provided with a sealing plate in a sliding sleeve mode, the sealing plate is arranged at the joint of the sewage draining groove and the upper cavity and is sleeved on the outer surface of the pull rod in a sliding mode, one side of the sealing plate is fixedly connected with a return spring, and one end of the return spring is fixedly connected with one side of the inner wall of the upper cavity.

The handle is all installed to the one end of pull rod and linkage bull stick, install in one side fixedly connected with driven lever of the handle of linkage bull stick tip, the linkage bull stick is seted up towards the one end of handle and is cup jointed the spacing groove in the driven lever outside, the inside cover of spacing groove is equipped with the stopper with driven lever one end fixed connection.

The inside interlude of box has the movable rod, the movable rod is located between pull rod and the linkage bull stick, install in the constant head tank that corresponds each other with the movable rod is seted up to one side of the handle of linkage bull stick tip, the top fixedly connected with connecting rod of movable rod, the top fixedly connected with joint pole of connecting rod, the joint groove of mutually supporting with the joint pole is seted up to the lower surface of pull rod, fixedly connected with reset spring is still gone back to the bottom of joint pole, reset spring's bottom fixedly connected with spring holder, the fixed inside of locating the box that inlays of spring holder.

The invention also provides: a frequency converter, comprising:

a frequency converter body;

an isolation mechanism as claimed in any one of the above;

the frequency converter body is assembled inside the isolation mechanism, and a control panel is installed on the front face of the frequency converter body.

The invention has the technical effects that:

according to the invention, the design of the plugging mechanism is adopted, and the plugging mechanism can plug the output port of the heat dissipation mechanism, so that dust blocked by the heat dissipation mechanism cannot be extruded into the inside of the frequency converter body during cleaning, and the cleanliness of the inside of the frequency converter body cannot be damaged;

the invention adopts the design of the dust removal mechanism, the dust removal mechanism can open the port of the sewage discharge groove before the dirt is scraped out, so that the dust removal and the sewage discharge can be carried out synchronously, and after the dust removal mechanism is reset, the port of the sewage discharge groove can be automatically blocked, so that the external dust cannot enter the box body through the sewage discharge groove;

the invention adopts the design of the lifting mechanism, the lifting mechanism is used for driving the plugging mechanism to lift, and the positioning can be finished by pressing the handle after the lifting mechanism runs, the external limitation of the dust removing mechanism can be synchronously removed after the lifting mechanism is positioned, otherwise, the dust removing mechanism can be automatically locked under the conditions that the dust removing mechanism is reset in advance and the lifting mechanism is reset again;

the invention adopts the design of staggered arrangement of the lifting plate and the linkage support plate, air extracted by the heat dissipation mechanism is not blocked by the lifting support plate and the linkage support plate, and under the action of the lifting mechanism, the lifting support plate can be lifted for a certain distance in advance and then can drive the linkage support plate to lift synchronously, so that the heat dissipation mechanism can be blocked at one time.

Drawings

FIG. 1 is a schematic view of an overall apparatus provided in example 1 of the present invention;

FIG. 2 is a schematic sectional top view of a tank provided in embodiment 1 of the present invention;

FIG. 3 is a sectional front view of a casing provided in embodiment 1 of the present invention;

FIG. 4 is a schematic side sectional view provided in example 1 of the present invention;

FIG. 5 is a schematic view of a dust removing mechanism provided in embodiment 1 of the present invention;

FIG. 6 is a schematic sectional view of the joint of the movable bar, the handle and the pull bar provided in embodiment 1 of the present invention;

FIG. 7 is an enlarged schematic view taken at A of FIG. 6 in accordance with the present invention;

FIG. 8 is an enlarged schematic view of the invention at B of FIG. 6;

FIG. 9 is a schematic view of a dust removing mechanism provided in embodiment 2 of the present invention;

fig. 10 is a schematic sectional view of the joint of the movable rod, the handle and the pull rod provided in embodiment 2 of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a frequency converter body; 2. a box body; 2a, a protective cavity; 2b, mounting a cavity; 201. an upper chamber; 2011. a filtration pore; 202. a lower chamber; 203. a filter screen; 204. a sewage draining groove; 3. a drive motor; 301. a heat radiation fan; 4. a lifting support plate; 401. a linkage support plate; 4011. fixing the sleeve; 4012. a guide bar; 402. butting columns; 403. a pressing plate; 5. a fixed box; 6. a driving gear; 601. a linkage gear; 7. a linkage rack; 8. a linkage rotating rod; 801. a limiting groove; 9. a handle; 901. a driven lever; 902. a limiting block; 903. positioning a groove; 10. a pull rod; 10a, a screw rod; 1001. a squeegee; 11. a sealing plate; 1101. a return spring; 12. a movable rod; 1201. a connecting rod; 13. a clamping and connecting rod; 1301. a return spring; 1302. a spring base.

Detailed Description

In order that the objects and advantages of the invention will be more clearly understood, the following description is given in conjunction with the accompanying examples. It is to be understood that the following text is merely illustrative of one or more specific embodiments of the invention and does not strictly limit the scope of the invention as specifically claimed.

Example 1

As shown in fig. 1 and 2, an isolation mechanism comprises a box body 2, a heat dissipation mechanism, a plugging mechanism and a dust removal mechanism, wherein the box body 2 comprises a protection cavity 2a and an installation cavity 2b, a frequency converter is assembled in the installation cavity 2b, the heat dissipation mechanism is arranged in the protection cavity 2a, the plugging mechanism is located below the heat dissipation mechanism and is matched with the heat dissipation mechanism, and the dust removal mechanism is arranged in the protection cavity 2a and acts on the upper surface of the heat dissipation mechanism.

According to the invention, after a user starts the heat dissipation mechanism, the heat dissipation mechanism extracts external air into the box body 2, meanwhile, external dirt is blocked by the heat dissipation mechanism, the pressure inside the box body 2 is gradually increased along with the entering of the external air, the heat inside the box body 2 is discharged through the heat dissipation holes along with the external air, when too much dirt is adhered to the heat dissipation mechanism, the user operates the plugging mechanism, then an output air port of the heat dissipation mechanism is plugged, along with the continuous operation of the plugging mechanism, the lower surface of the dust removal mechanism is mutually attached to the upper surface of the plugging mechanism, and then the user operates the dust removal mechanism to scrape the dirt on the heat dissipation mechanism.

As shown in fig. 2 and 3, the interior of the protection cavity 2a is divided into an upper chamber 201 and a lower chamber 202, the upper chamber 201 is disposed outside the heat dissipation mechanism and the dust removal mechanism, the lower chamber 202 is disposed outside the plugging mechanism, an open slot communicated with the outside is disposed on one side of the upper chamber 201, the heat dissipation mechanism can draw outside air into the upper chamber 201 through the open slot, the lower chamber 202 is communicated with the interior of the installation cavity 2b, and the outside air can flow into the interior of the installation cavity 2b through the lower chamber 202.

As shown in fig. 2 and 3, heat dissipation mechanism includes driving motor 3, radiator fan 301 and filter screen 203, and driving motor 3 fixed mounting is in the inside of last cavity 201, driving motor 3 and external power source electric connection, and driving motor 3 is a common rotating electrical machines on the market, and radiator fan 301 fixed mounting is in driving motor 3's output, and the inside of open slot is located to fixed the inlaying of filter screen 203, the inside fixed division board that is equipped with of protection cavity 2a, a plurality of filtration holes 2011 have been seted up to the inside equidistance of division board, and the aperture of filtering hole 2011 is less than the aperture of filter screen 203, and goes up cavity 201 and lower cavity 202 and communicate each other through a plurality of filtration holes 2011.

According to the structure, when heat dissipation mechanism needs to be used, the user firstly switches on the power supply of driving motor 3, then cooling fan 301 rotates under driving motor 3's drive, then outside air is just extracted to the inside of protection chamber 2a, and the air is when flowing, external filth also is close to box 2, the filth is blockked by filter screen 203 at first, the less filth of volume is blockked by filtration pore 2011 after entering into the inside of epicoele 201, and then make the inside air of installation cavity 2b comparatively clean, make converter body 1 can not have external filth to enter into the inside of installation cavity 2b when carrying out heat dissipation work.

As shown in fig. 3, the plugging mechanism includes a lifting support plate 4, a linkage support plate 401 and a docking column 402, the lifting support plate 4 and the linkage support plate 401 are both disposed inside the lower chamber 202, the linkage support plate 401 is disposed in two, the two linkage support plates 401 are disposed on two sides of the lifting support plate 4, the docking column 402 is disposed in multiple numbers, the docking columns 402 are fixedly connected above the lifting support plate 4 and the linkage support plate 401 at equal intervals, the docking columns 402 respectively correspond to the filtering holes 2011, and the length of the docking column 402 is the same as the depth of the filtering holes 2011.

Correspondingly, for guaranteeing the shutoff effect of docking post 402 to filtering hole 2011, the diameter of docking post 402 is greater than the diameter of filtering hole 2011, and docking post 402 forms for the elastic material preparation, and this place can be the rubber materials component, and it possesses the deformation volume of preferred, at the in-process of shutoff, can reduce the volume with the help of its deformation, get into filtering hole 2011 with this, thereby realize the shutoff process, it is further that, the below opening of filtering hole 2011 is the loudspeaker form, it is inside filtering hole 2011 to be convenient for better the butt joint of docking post 402.

It should be noted that, in the initial state, the positions of the lifting support plate 4 and the linkage support plate 401 are staggered, specifically referring to fig. 3, a certain gap exists between the lifting support plate 4 and the linkage support plate 401, and then the air discharged through the filtering holes 2011 can smoothly enter the interior of the lower chamber 202.

Further, referring to fig. 4 and 5, a lifting mechanism is installed at the bottom end of the lifting support plate 4, an extrusion plate 403 is further fixedly embedded at the bottom end of the lifting support plate 4, and two ends of the extrusion plate 403 are respectively located at the bottom ends of the two linkage support plates 401.

Furthermore, the bottom end of the linkage support plate 401 is fixedly connected with a guide rod 4012, a fixed sleeve 4011 is sleeved outside the guide rod 4012 in a sliding mode, a contact surface between the guide rod 4012 and the fixed sleeve 4011 is a smooth surface, so that the friction force generated when the guide rod 4012 goes up and down can be reduced, and the bottom end of the fixed sleeve 4011 is fixedly connected with the bottom end of the inner wall of the lower chamber 202.

Specifically, when too much dirt is adhered above the filter holes 2011, a user operates the lifting mechanism to drive the lifting support plate 4 to ascend, the lifting support plate 4 drives the extrusion plate 403 to ascend, the extrusion plate 403 extrudes the linkage support plate 401, the linkage support plate 401 drives the guide rod 4012 to slide upwards along the inside of the fixed sleeve 4011, so that the linkage support plate 401 does not skew when ascending, then the linkage support plate 401 and the lifting support plate 4 both drive the docking columns 402 to ascend synchronously, after the docking columns 402 are plugged into the filter holes 2011, the dirt adhered to the inner walls of the filter holes 2011 is extruded to the port of the filter holes 2011, after the docking columns 402 completely filter the inside of the filter holes 2011, the output ports of the upper cavity 201 are sealed, and therefore the dirt accumulated above the filter holes 2011 can be conveniently scraped by the subsequent dust removal mechanism.

As shown in fig. 4 and 5, the lifting mechanism includes a fixed box 5, a driving gear 6, a linkage gear 601, linkage racks 7 and a linkage rotating rod 8, the fixed box 5 is fixedly installed inside the lower chamber 202, the driving gear 6 and the linkage gear 601 are both rotatably connected inside the fixed box 5, the driving gear 6 and the linkage gear 601 can be rotatably connected inside the fixed box 5 through bearings, such that the driving gear 6 and the linkage gear 601 can rotate more smoothly, the driving gear 6 and the linkage gear 601 are engaged with each other, the linkage racks 7 are provided in two numbers, the two linkage racks 7 are respectively engaged with the driving gear 6 and the linkage gear 601, the numbers of the teeth of the driving gear 6 and the linkage gear 601 are not particularly limited, the figures show that only can be read and referred to, the arrangement can be performed according to specific situations in practical use, and the top ends of the two linkage racks 7 both penetrate through the top end of the fixed box 5 and are fixedly connected with the lower surface of the lifting support plate 4, the linkage rotating rod 8 penetrates through the fixed box 5 and is fixedly connected with the axle center of one side of the driving gear 6.

According to the structure, when the plugging mechanism needs to operate, a user firstly rotates the linkage rotating rod 8, the linkage rotating rod 8 drives the driving gear 6 to rotate, the driving gear 6 is meshed with the linkage gear 601, then the driving gear 6 and the linkage gear 601 are synchronously meshed with the two linkage racks 7, the two linkage racks 7 ascend and extrude the lifting support plate 4, the lifting support plate 4 drives the linkage support plate 401 to ascend, and then the lifting support plate 4 and the linkage support plate 401 synchronously drive the butt column 402 to enter the inside of the filtering hole 2011.

As shown in fig. 5 and 6, the dust removing mechanism includes a pull rod 10 and a scraper 1001, the pull rod 10 is inserted into the upper chamber 201 in a sliding manner, the scraper 1001 is disposed above the filtering hole 2011, the scraper 1001 is disposed in an inverted L shape, one side of the scraper 1001 is fixedly connected to one end of the pull rod 10, a dirt discharge groove 204 communicated with the inside of the upper chamber 201 is further formed in one side of the box body 2, and the dirt discharge groove 204 is disposed in an inclined shape, so that dirt scraped by the scraper 1001 can automatically flow out of the box body 2.

Further, referring to fig. 6 specifically, a sealing plate 11 is further slidably sleeved inside the upper chamber 201, the sealing plate 11 is disposed at a connection position between the dirt discharging groove 204 and the upper chamber 201, the sealing plate 11 is slidably sleeved on an outer surface of the pull rod 10, a return spring 1101 is fixedly connected to one side of the sealing plate 11, the return spring 1101 is initially in an unstressed state, and one end of the return spring 1101 is fixedly connected to one side of an inner wall of the upper chamber 201.

In the initial state, the scraper 1001 is close to the heat dissipation fan 301, the sealing plate 11 is close to the filter hole 2011, and further, the dirt in the upper chamber 201 is not discharged through the dirt discharge groove 204, so that the dirt around the box body 2 is not splashed.

According to the structure, after the heat dissipation mechanism is plugged by the plugging mechanism, the port of the filter hole 2011 is in a flat state, then a user pulls the pull rod 10, the pull rod 10 pulls the scraper 1001 to move along the upper surface of the filter hole 2011, at the moment, dirt above the filter hole 2011 is gradually gathered and moves towards the sewage discharge groove 204, the bent part above the scraper 1001 can firstly press the sealing plate 11, the sealing plate 11 presses the return spring 1101, the return spring 1101 contracts and stores power, then the port of the sewage discharge groove 204 is opened, under the continuous movement of the scraper 1001, the dirt is discharged to the outside through the sewage discharge groove 204, after the dust removal operation is completed, the user pushes the pull rod 10 to reset the pull rod, and at the moment, the return spring 1101 also can press the sealing plate 11 to automatically return to the initial position.

As shown in fig. 6 and 7, the handle 9 is installed at the one end of the pull rod 10 and the linkage rotating rod 8, the handle 9 installed at the end of the pull rod 10 can be processed into an integral whole with the pull rod 10, the driven rod 901 is fixedly connected to one side of the handle 9 installed at the end of the linkage rotating rod 8, the limiting groove 801 sleeved outside the driven rod 901 is opened towards one end of the linkage rotating rod 8 facing the handle 9, the limiting block 902 fixedly connected with one end of the driven rod 901 is sleeved inside the limiting groove 801, the limiting block 902 and the limiting groove 801 are both set to be square, and therefore the limiting block 902 cannot rotate relative to the limiting groove 801.

Furthermore, the user realizes the rotation of the linkage rotating rod 8 by screwing the handle 9, so that the external force support is provided for the operation of the lifting mechanism, and the operation of the dust removing mechanism is realized by pulling the handle 9 to pull the pull rod 10 to move.

As shown in fig. 6 and 8, the movable rod 12 has been alternate to the inside of box 2, the bottom processing of movable rod 12 is hemispherical, movable rod 12 is located between pull rod 10 and the linkage bull stick 8, install in one side of the handle 9 of 8 tip of linkage bull stick and offer the constant head tank 903 that corresponds each other with movable rod 12, the top fixedly connected with connecting rod 1201 of movable rod 12, the top fixedly connected with joint pole 13 of connecting rod 1201, the joint groove of mutually supporting with joint pole 13 is seted up to the lower surface of pull rod 10, fixedly connected with reset spring 1301 is still gone back to the bottom of joint pole 13, the bottom fixedly connected with spring base 1302 of reset spring 1301, the inside of box 2 is located to fixed the inlaying of spring base 1302.

It should be noted that, after the rotation linkage rotating rod 8 and make the elevating system finish, the opening of constant head tank 903 is upwards this moment, then the user need press handle 9, handle 9 just can drive constant head tank 903 and move gradually to the below of movable rod 12, reset spring 1301 retracts this moment, and then joint rod 13 drives movable rod 12 through connecting rod 1201 and descends, the inside of constant head tank 903 will be inserted to the bottom of movable rod 12, with this restriction handle 9 can not continue to rotate, thereby guarantee that elevating system is locked, and can break away from the inside of joint groove after joint rod 13 descends, the external restriction of pull rod 10 at this moment just is relieved, pull rod 10 can remove under the effect of external force this moment.

Further, because the bottom of movable rod 12 sets up to hemispherical, so after applying certain pulling force to handle 9, movable rod 12 can break away from in the inside of constant head tank 903, and movable rod 12 just can rise this moment, and then movable rod 12 through connecting rod 1201 alright drive joint pole 13 and rise, after dust removal mechanism resets, joint pole 13 can enter into the inside in joint groove to this restriction pull rod 10 can not shift.

Referring to fig. 1, a frequency converter includes a frequency converter body 1, such as the above-mentioned isolation mechanism, the frequency converter body 1 is assembled inside the isolation mechanism, and a control panel is installed on the front surface of the frequency converter body 1.

The working principle of the invention is as follows: when converter body 1 during operation, heat dissipation mechanism moves and extracts the inside of box 2 with the air of outside, external filth is kept off by heat dissipation mechanism simultaneously, and then realize dustproof under the radiating circumstances to converter body 1 synchronously, when the too much filth of adhesion on heat dissipation mechanism, user operation shutoff mechanism, heat dissipation mechanism's delivery outlet will be stopped up afterwards, along with shutoff mechanism continues the operation, dust removal mechanism's lower surface will laminate each other with the upper surface of shutoff mechanism, then the user moves dust removal mechanism will dispel the heat the filth on the mechanism strike off can.

Example 2

The embodiment is further improved on the basis of the embodiment 1.

This embodiment differs from embodiment 1 in one of the following points: referring to fig. 9 and 10, the pull rod 10 is replaced by a screw rod 10a, the screw rod 10a is rotatably disposed above the filtering hole 2011 through a bearing, the screw rod 10a penetrates through the scraper 1001 and is in threaded connection with the scraper 1001, two sides of the scraper 1001 are flush with the inner wall of the upper chamber 201, and a servo motor a is fixedly mounted at one end of the pull rod 10 extending out of the upper chamber 201.

The second difference is that: the handle 9 arranged at the end part of the linkage rotating rod 8 is replaced by a servo motor b, and a micro push rod is synchronously assembled and used for pushing the servo motor b to move, and the maximum stroke of the micro push rod can enable the linkage rotating rod 8 to move to the lower part of the movable rod 12, so that the unlocking process is realized.

In addition, in order to enable the frequency converter to automatically clean the filtering holes 2011 in the operation process, a wind pressure sensor is further arranged below the filtering holes 2011 and is connected to the controller (a control unit can be preassembled, and detailed description is omitted in the prior art), and by means of setting a pressure threshold value through which an air flow passes, after the threshold value is reached, the wind pressure sensor transmits a cleaning signal to the controller, and the controller controls the subsequent cleaning and plugging processes.

In this embodiment, cancelled manual operation's process, saved artifical the input, and especially be fit for mill or the too much regional use of other electrical equipment, no longer need too much manual supervision and operation, guarantee the stability of converter long-term running, and strike off the in-process, the synchronous start fan, the dust is fallen in clearance that can be more thorough, the result of use is better.

Furthermore, the servo motors a and b are all selected from micro motors, the specific installation conditions can be adjusted according to the actual conditions, and the diagram is only used for better expressing the principle and does not represent the specific installation position.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be construed as the protection scope of the present invention. Structures, devices, and methods of operation not specifically described or illustrated herein are generally practiced in the art without specific recitation or limitation.

Claims

1. The utility model provides an isolation mechanism, is applied to the converter which characterized in that: the method comprises the following steps:

the frequency converter is characterized by comprising a box body (2), wherein the box body (2) comprises a protective cavity (2 a) and a mounting cavity (2 b), and the frequency converter is assembled in the mounting cavity (2 b);

the heat dissipation mechanism is arranged inside the protection cavity (2 a);

the plugging mechanism is arranged in the protective cavity (2 a), is positioned below the heat dissipation mechanism and is matched with the heat dissipation mechanism;

the dust removal mechanism is arranged in the protective cavity (2 a) and acts on the upper surface of the heat dissipation mechanism;

when the plugging mechanism operates, the heat dissipation mechanism is plugged, and the lower surface of the dust removal mechanism is gradually attached to the upper surface of the plugging mechanism along with the continuous operation of the plugging mechanism;

the plugging mechanism comprises a lifting support plate (4), two linkage support plates (401) and a plurality of butt columns (402), wherein the lifting support plate (4) and the linkage support plates (401) are arranged inside the lower chamber (202), the two linkage support plates (401) are arranged at two sides of the lifting support plate (4), the butt columns (402) are arranged in a plurality, the butt columns (402) are fixedly connected above the lifting support plate (4) and the linkage support plates (401) at equal intervals, and the butt columns (402) respectively correspond to the filtering holes (2011) of the heat dissipation mechanism;

a lifting mechanism is installed at the bottom end of the lifting support plate (4), a guide rod (4012) is fixedly connected to the bottom end of the linkage support plate (401), a fixed sleeve (4011) is sleeved outside the guide rod (4012) in a sliding mode, and the bottom end of the fixed sleeve (4011) is fixedly connected with the bottom end of the inner wall of the lower chamber (202);

the lifting mechanism comprises a fixed box (5), a driving gear (6), a linkage gear (601), a linkage rack (7) and a linkage rotating rod (8), the fixed box (5) is fixedly arranged in the lower chamber (202), the driving gear (6) and the linkage gear (601) are both rotationally connected in the fixed box (5), the driving gear (6) is meshed with the linkage gear (601), the linkage racks (7) are arranged in two numbers, the two linkage racks (7) are respectively meshed with the driving gear (6) and the linkage gear (601), the top ends of the two linkage racks (7) penetrate through the top end of the fixed box (5) and are fixedly connected with the lower surface of the lifting support plate (4), the linkage rotating rod (8) penetrates through the fixed box (5) and is fixedly connected with the axle center of one side of the driving gear (6).

2. An isolation mechanism as claimed in claim 1, wherein: last cavity (201) and lower cavity (202) have been seted up to the inside in protection cavity (2 a), it sets up in the outside of heat dissipation mechanism and dust removal mechanism to go up cavity (201), lower cavity (202) set up in the outside of shutoff mechanism, one side of going up cavity (201) is provided with the open slot that is linked together with the external world, cavity (202) is linked together with the inside of installation cavity (2 b) down.

3. An isolation mechanism as claimed in claim 2, wherein: radiating mechanism includes driving motor (3), radiator fan (301) and filter screen (203), driving motor (3) fixed mounting is in the inside of last cavity (201), driving motor (3) and external power source electric connection, radiator fan (301) fixed mounting is in the output of driving motor (3), filter screen (203) are fixed to be inlayed in the inside of locating the open slot, the inside of protection chamber (2 a) is fixed to be inlayed and is equipped with the division board, a plurality of filtration pores (2011) have been seted up to the inside equidistance of division board, just it communicates each other through a plurality of filtration pores (2011) to go up cavity (201) and cavity of resorption (202).

4. An isolation mechanism as claimed in claim 3, wherein: dust removal mechanism includes pull rod (10) and scraper blade (1001), pull rod (10) slide and alternate in the inside of last cavity (201), scraper blade (1001) set up in the top of crossing filtration pore (2011), just one side of scraper blade (1001) and the one end fixed connection of pull rod (10), blowdown groove (204) that are linked together with last cavity (201) inside are still seted up to one side of box (2).

5. An isolation mechanism as claimed in claim 4, wherein: go up the inside of cavity (201) and still slide to overlap and be equipped with sealing plate (11), sealing plate (11) set up in the junction of blowdown groove (204) and last cavity (201), sealing plate (11) slide to cup joint in the surface of pull rod (10), one side fixedly connected with return spring (1101) of sealing plate (11), one end of return spring (1101) and one side fixed connection of last cavity (201) inner wall.

6. An isolation mechanism as claimed in claim 4, wherein: handle (9) are all installed to the one end of pull rod (10) and linkage bull stick (8), install in one side fixedly connected with driven lever (901) of handle (9) of linkage bull stick (8) tip, spacing groove (801) that cup joints in the driven lever (901) outside are seted up towards the one end of handle (9) in linkage bull stick (8), the inside cover of spacing groove (801) is equipped with stopper (902) with driven lever (901) one end fixed connection.

7. An isolation mechanism as claimed in claim 6, wherein: the inside interlude of box (2) has movable rod (12), movable rod (12) are located between pull rod (10) and linkage bull stick (8), install in constant head tank (903) that correspond each other with movable rod (12) are seted up to one side of handle (9) of linkage bull stick (8) tip, the top fixedly connected with connecting rod (1201) of movable rod (12), the top fixedly connected with joint pole (13) of connecting rod (1201), the joint groove of mutually supporting with joint pole (13) is seted up to the lower surface of pull rod (10), fixedly connected with reset spring (1301) is gone back to the bottom of joint pole (13), the bottom fixedly connected with spring base (1302) of reset spring (1301), the inside in box (2) is located to fixed the inlaying of spring base (1302).

8. A frequency converter, comprising:

a frequency converter body (1);

the isolation mechanism of any one of claims 1-7;

the frequency converter body (1) is assembled inside the isolation mechanism, and a control panel is installed on the front face of the frequency converter body (1).