CN114093601B - Power electrical transformer with dustproof function - Google Patents
Power electrical transformer with dustproof function Download PDFInfo
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- CN114093601B CN114093601B CN202210057349.3A CN202210057349A CN114093601B CN 114093601 B CN114093601 B CN 114093601B CN 202210057349 A CN202210057349 A CN 202210057349A CN 114093601 B CN114093601 B CN 114093601B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
- H01F27/022—Encapsulation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
- H01F27/025—Constructional details relating to cooling
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/06—Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/085—Cooling by ambient air
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/33—Arrangements for noise damping
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Abstract
The invention discloses a power electrical transformer with a dustproof function, which comprises a shell, a blocking shed and a housing, wherein a transformer main body is arranged inside the shell, an exhaust fan is arranged at the top of the inner wall of the shell, a dustproof net is arranged at the top of the shell and is positioned at the position of the exhaust fan, a damping device is arranged between the bottom of the inner wall of the shell and two corresponding sides of the bottom of the transformer main body, filter screens are arranged at two corresponding sides of the bottom of the surface of the shell and are positioned at the position of the housing, a cleaning device is arranged at the bottom of the inner wall of the shell and is close to the filter screens, and sliding blocks are fixed at two corresponding sides of the surface of the transformer main body and are in sliding connection with the shell. This power electrical transformer with dustproof function has reached dustproof effect of making an uproar of falling, can filter the dust, and it is inside to reduce impurity entering, helps the heat dissipation, prolongs the life of equipment to can cushion the shock attenuation, the noise reduction, safe and reliable has improved performance.
Description
Technical Field
The invention relates to the technical field of power electrical equipment, in particular to a power electrical transformer with a dustproof function.
Background
With the maturity of power technology in China, various power equipment develops rapidly, a transformer is one of the most common power equipment, and the running state of the transformer directly determines the running safety and stability of a power system and the reliability of power supply. The transformer is a device for changing alternating voltage by utilizing the principle of electromagnetic induction, main components are a primary coil, a secondary coil and an iron core, and the transformer has the following main functions: the transformer comprises a transformer body, a transformer core and a transformer core.
At present, traditional power electric transformer is mostly in outdoors, and a large amount of dust can get into the inside of equipment, causes the dust to pile up, is unfavorable for the heat dissipation, influences the life of equipment, and the magnetostriction of transformer during operation silicon steel sheet arouses the vibration of iron core, arouses great noise, seriously influences near resident's rest, has reduced performance.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a power electrical transformer with a dustproof function, which solves the problems that most of the traditional power electrical transformers are located outdoors, a large amount of dust can enter the interior of equipment to cause dust accumulation, the heat dissipation is not facilitated, the service life of the equipment is influenced, the magnetostrictive of silicon steel sheets causes iron core vibration when the transformers work, larger noise is caused, the rest of nearby residents is seriously influenced, and the use performance is reduced.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a power electrical transformer with a dustproof function comprises a shell, a blocking shed and a cover shell, wherein the blocking shed is fixed at the top of the shell, and the cover shell is fixed on two corresponding sides of the bottom of the surface of the shell;
the transformer comprises a shell, a transformer body, an exhaust fan, a dust screen, a damping device, a filter screen, a cleaning device and a sliding block, wherein the transformer body is arranged in the shell, the exhaust fan is arranged at the top of the inner wall of the shell, the dust screen is arranged at the top of the shell and is positioned at the position of the exhaust fan, the damping device is arranged between the bottom of the inner wall of the shell and the two sides corresponding to the bottom of the transformer body, the filter screen is arranged at the two sides corresponding to the bottom of the surface of the shell and is positioned at the position of the shell, the cleaning device is arranged at the bottom of the inner wall of the shell and is close to the position of the filter screen, the sliding block is fixed at the two sides corresponding to the surface of the transformer body and is in sliding connection with the shell, the exhaust fan blows air in the shell to blow the air out of the dust screen, and the external air enters from the filter screen to circulate by convection, give off the heat of inside in time, can in time filter debris such as dust simultaneously, inside the reduction impurity entering equipment, help the heat dissipation, the difficult condition that high temperature appears prolongs the life of equipment to can cushion the shock attenuation, noise reduction.
Preferably, the damping device is provided with a frame body, a pressing plate, an elastic bag, a guide post and a spring, wherein the bottom of the frame body is fixedly connected with the bottom of the inner wall of the shell, the pressing plate is connected inside the frame body in a sliding manner and is located at the top position, the elastic bag is arranged inside the frame body and is located at the bottom position of the pressing plate, the top end of the guide post is fixedly connected with the bottom of the transformer main body, the surface of the guide post is connected with the frame body in a sliding manner, the spring is fixed between the top of the frame body and two corresponding sides of the bottom of the transformer main body and is located on the surface of the guide post, when the transformer main body works, the magnetostriction of silicon steel sheets can cause the vibration of an iron core, and the iron core can stably move up and down by utilizing the vibration generated by the spring under the common guiding action of the sliding block and the guide post, and meanwhile, the spring provides elastic force to further buffer and damp the transformer main body, so as to reduce noise, simultaneously along with transformer body's upper and lower reciprocating motion, and then reciprocate to press the elasticity bag through the clamp plate, make its inside gaseous blowout fast, utilize gas pressure to make cleaning device clear up the dust that the filter screen filtered, reduce the sticky condition of gluing of dust, the difficult jam that appears helps filtering the dust.
Preferably, the inside of framework is provided with the appearance chamber with clamp plate, elasticity bag looks adaptation, the surperficial top of elasticity bag is closely laminated with the bottom of clamp plate, the surperficial bottom of elasticity bag is closely laminated with the inner wall bottom of shell.
Preferably, the top of the pressing plate is fixedly connected with the bottom of the transformer main body, and the top of the pressing plate is provided with a sliding hole matched with the guide post.
Preferably, the cleaning device is provided with an arc-shaped base body, an air passage, an impact ball, a tension spring and a secondary knocking device, the bottom end of the arc-shaped base body is fixedly connected with the bottom of the inner wall of the shell, the air passage is arranged in the arc-shaped base body, the impact ball is connected to the top end of the arc-shaped base body in a matching mode, the tension spring is fixed between the surface of the impact ball and the corresponding two sides in the arc-shaped base body and located in the air passage, the secondary knocking device is arranged at the top of the surface of the arc-shaped base body and located at the position of the impact ball, when gas in the elastic bag is sprayed out, the air passage is communicated with the elastic bag, at the moment, the air flow enters the air passage, the impact ball is pushed outwards by the pressure of the gas, the filter screen is impacted, the filter screen is vibrated, dust and sundries filtered from the surface of the elastic bag are effectively cleaned, and the elastic bag is pressed in a reciprocating mode, and under the effect of the elastic tension of the tension spring, the impact ball is reset in time, and impact force is applied to the arc-shaped ball head impact rod, so that secondary impact on the filter screen is facilitated.
Preferably, the top end of the arc-shaped base body is provided with an arc-surface sealing groove matched with the impact ball, and the secondary knocking device is connected with the impact ball and the arc-shaped base body in a matched mode.
Preferably, secondary knocking device is equipped with arc, arc bulb striking rod, reset spring, the one end of arc and the surperficial top fixed connection of arc base member, the inside at the arc is connected in the cooperation of arc bulb striking rod, reset spring fixes between the inside corresponding both sides of arc bulb striking rod tip and arc, and when the striking ball received the elastic tension of extension spring and resets, utilize effort and reaction, the striking ball can strike arc bulb striking rod, and then makes arc bulb striking rod stretch out to the outside, and then strikes once more to the filter screen, and then utilizes arc bulb striking rod and striking ball to constantly strike the filter screen, and increase range of vibrations and frequency effectively carry out self-cleaning.
Preferably, the arc-shaped part is internally provided with an arc-shaped sliding hole matched with the arc-shaped ball head impact rod.
(III) advantageous effects
The invention provides a power electrical transformer with a dustproof function. The method has the following beneficial effects:
(one), this power electrical transformer with dustproof function, through the shell, keep off the canopy, the housing, the transformer main part, the exhaust fan, the dust screen, damping device, the filter screen, cleaning device, the slider, utilize the exhaust fan to blow the air in the shell, make it blow off from the dust screen, and the air of external world gets into from the department of filter screen, utilize the air convection circulation, in time give off the heat of inside, simultaneously can in time filter debris such as dust, it is inside to reduce impurity entering equipment, help the heat dissipation, the difficult condition that the high temperature appears, the life of extension equipment, and can cushion the shock attenuation, the noise reduction, safety and reliability, service performance has been improved.
The power electrical transformer with the dustproof function comprises a frame body, a pressing plate, an elastic bag, a guide column and a spring, when the transformer main body works, the magnetostriction of the silicon steel sheet can cause the iron core to vibrate, and the iron core can stably move up and down by utilizing the vibration generated by the silicon steel sheet under the common guide action of the sliding block and the guide post, and meanwhile, the spring provides elasticity, further, the transformer body is buffered and damped, so that the noise is reduced, and simultaneously along with the up-and-down reciprocating movement of the transformer body, further, the pressing plate is used for pressing the elastic bag in a reciprocating way, so that the gas in the elastic bag is quickly sprayed out, the cleaning device is used for cleaning the dust filtered by the filter screen by utilizing the gas pressure, the sticky condition of the dust is reduced, the dust filter is not easy to block, dust can be filtered, the structure is skillfully connected, safety and reliability are realized, and multiple functions are achieved.
(III), this electric power transformer with dustproof function, through the filter screen, the arc base member, the air flue, the impact ball, the extension spring, secondary knocking device, when the gas blowout in the elasticity bag, utilize intercommunication between air flue and the elasticity bag, the air current enters into in the air flue this moment, pressure through gas promotes the impact ball outside, and then strike the filter screen, make it produce vibrations, and then effectively clear up the dust debris that its surface filtration got off, and along with the elasticity bag receives reciprocal pressing, and under the effect of the elastic tension of extension spring, make the impact ball in time reset, and apply the impact to arc bulb striking rod, help carrying out the secondary striking to the filter screen, whole structural connection is in the same place, no isolated structure exists, not only filter the dust, and still carry out self-cleaning, performance has been improved.
(IV), this power electrical transformer with dustproof function, through the arc piece, arc bulb striking rod, reset spring, when the striking ball receives the elastic tension of extension spring to reset, utilize effort and reaction, the striking ball can strike arc bulb striking rod, and then make arc bulb striking rod stretch out to the outside, and then strike once more to the filter screen, and then utilize arc bulb striking rod and striking ball to constantly strike the filter screen, increase range of vibrations and frequency, effectively carry out self-cleaning, utilize interact between the structure, the interconnection, fully be in the same place the structural connection, reach multiple functions.
Drawings
FIG. 1 is a schematic view of the overall structure of a power electrical transformer with dust-proof function according to the present invention;
FIG. 2 is a schematic diagram of the internal structure of the power transformer with dust-proof function according to the present invention;
FIG. 3 is a schematic structural diagram of a damping device in a power electrical transformer with a dustproof function according to the present invention;
FIG. 4 is a schematic structural diagram of a cleaning device in a power electrical transformer with a dust-proof function according to the present invention;
fig. 5 is a schematic structural view of a secondary knocking device in a power electrical transformer with a dustproof function according to the present invention.
In the figure: 1 shell, 2 fenders, 3 enclosers, 4 transformer main parts, 5 exhaust fans, 6 dust screens, 7 damping device, 8 filter screens, 9 cleaning device, 10 sliders, 71 framework, 72 clamp plates, 73 elastic capsules, 74 guide posts, 75 springs, 91 arc base body, 92 air flue, 93 striking balls, 94 extension springs, 95 secondary striking device, 951 arc piece, 952 arc bulb striking rod, 953 reset spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
referring to fig. 1-5, the present invention provides a technical solution: a power electrical transformer with a dustproof function comprises a shell 1, a blocking shed 2 and a cover 3, wherein the blocking shed 2 is fixed at the top of the shell 1, and the cover 3 is fixed at two corresponding sides of the bottom of the surface of the shell 1;
the transformer main body 4, the exhaust fan 5, the dust screen 6, the damping device 7, the filter screen 8, the cleaning device 9 and the slide block 10 are arranged in the shell 1, the transformer main body 4 is arranged in the shell 1, the exhaust fan 5 is arranged at the top of the inner wall of the shell 1, the dust screen 6 is arranged at the top of the shell 1 and is positioned at the position of the exhaust fan 5, the damping device 7 is arranged between the bottom of the inner wall of the shell 1 and two sides corresponding to the bottom of the transformer main body 4, the filter screen 8 is arranged at two sides corresponding to the bottom of the surface of the shell 1 and is positioned at the position of the housing 3, the cleaning device 9 is arranged at the bottom of the inner wall of the shell 1 and is close to the filter screen 8, the slide block 10 is fixed at two sides corresponding to the surface of the transformer main body 4 and is in sliding connection with the shell 1, dust and other impurities can be filtered in time, the impurity entering into the equipment is reduced, the heat dissipation is facilitated, and the high-temperature condition is not easy to occur, the service life of extension equipment to can cushion the shock attenuation, the noise reduction, safe and reliable has improved performance.
The second embodiment:
the damping device 7 is provided with a frame body 71, a pressing plate 72, an elastic bag 73, a guide post 74 and a spring 75, wherein the bottom of the frame body 71 is fixedly connected with the bottom of the inner wall of the shell 1, the pressing plate 72 is slidably connected inside the frame body 71 and positioned at the top position, the elastic bag 73 is arranged inside the frame body 71 and positioned at the bottom position of the pressing plate 72, the top end of the guide post 74 is fixedly connected with the bottom of the transformer main body 4, the surface of the guide post 74 is slidably connected with the frame body 71, the spring 75 is fixed between the top of the frame body 71 and two corresponding sides of the bottom of the transformer main body 4 and positioned on the surface of the guide post 74, when the transformer main body 4 works, the magnetostriction of silicon steel sheets can cause the vibration of an iron core, and under the common guiding action of the sliding block 10 and the guide post 74, the self-generated vibration can be stably moved up and down, and the spring 75 provides elasticity, so as to further buffer and damp the transformer main body 4, and then the noise reduction, simultaneously along with transformer body 4's up-and-down reciprocating motion, and then reciprocate through clamp plate 72 to press elastic bag 73, make its inside gas spout fast, utilize gas pressure to make cleaning device 9 clear up the dust that filter screen 8 got off, reduce the sticky condition of dust, difficult appearance stops up, helps filtering the dust.
The third embodiment is as follows:
the cleaning device 9 is provided with an arc-shaped base body 91, an air passage 92, an impact ball 93, a tension spring 94 and a secondary knocking device 95, the bottom end of the arc-shaped base body 91 is fixedly connected with the bottom of the inner wall of the shell 1, the air passage 92 is arranged inside the arc-shaped base body 91, the impact ball 93 is connected with the top end of the arc-shaped base body 91 in a matching manner, the tension spring 94 is fixed between the surface of the impact ball 93 and the two corresponding sides inside the arc-shaped base body 91 and is positioned inside the air passage 92, the secondary knocking device 95 is arranged on the top of the surface of the arc-shaped base body 91 and is positioned at the position of the impact ball 93, when gas in the elastic bag 73 is sprayed out, the air passage 92 is communicated with the elastic bag 73, at the moment, the air flow enters the air passage 92, the impact ball 93 is pushed outwards by the pressure of the gas, the filter screen 8 is further impacted, vibration is generated, further, dust and impurities filtered from the surface of the filter screen are effectively cleaned, and are pressed back and forth along with the elastic bag 73, and under the effect of the elastic tension of the tension spring 94, the impact ball 93 is reset in time, and impact force is applied to the arc-shaped ball head impact rod 952, which is beneficial to performing secondary impact on the filter screen 8.
The fourth embodiment is as follows:
When in use, the whole equipment is firstly installed and fixed at a specified position, the air in the shell 1 is blown by the exhaust fan 5 to be blown out from the dustproof net 6, the outside air enters from the filter net 8, the heat in the shell is timely dissipated by air convection circulation, when the transformer main body 4 works, the magnetostriction of the silicon steel sheet can cause the iron core to vibrate, and the silicon steel sheet can stably move up and down by utilizing the vibration generated by the silicon steel sheet under the common guide action of the slide block 10 and the guide post 74, meanwhile, the spring 75 provides elasticity to buffer and damp the transformer main body 4, further, the noise is reduced, simultaneously, the elastic bag 73 is pressed up and down by the pressing plate 72 to enable the air in the elastic bag to be rapidly sprayed out, and the dust filtered by the filter net 8 is cleaned by the cleaning device 9 by utilizing the gas pressure, reduce the condition that the dust is sticky, be difficult for appearing the jam, help filtering the dust, and when the gas blowout in the elasticity bag 73, utilize and communicate between air flue 92 and the elasticity bag 73, the air current enters into air flue 92 this moment, through gaseous pressure with striking ball 93 outside promotion, and then strike filter screen 8, make it shake, and then effectively clear up the dust debris that its surface filtered, and along with elasticity bag 73 receives reciprocal pressure, and under the effect of the elastic tension of extension spring 94, make striking ball 93 reset in time, and exert the impact to arc bulb impact rod 952, help carrying out the secondary impact to filter screen 8, and when the elastic tension that receives extension spring 94 resets, utilize effort and reaction, striking ball 93 can strike arc bulb impact rod 952, and then make arc bulb impact rod 952 stretch out to the outside, and then strike once more to filter screen 8, and then utilize arc bulb impact bar 952 and impact ball 93 to constantly strike filter screen 8, increase vibration amplitude and frequency effectively carry out self-cleaning, and whole structure links together, and no isolated structure exists, not only filters the dust, but also carries out self-cleaning, has improved performance.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a power electrical transformer with dustproof function, includes shell (1), fender canopy (2), housing (3), its characterized in that: the shed (2) is fixed at the top of the shell (1), and the cover shell (3) is fixed at two corresponding sides of the bottom of the surface of the shell (1);
the inside of shell (1) is equipped with transformer main part (4), exhaust fan (5), dust screen (6), damping device (7), filter screen (8), cleaning device (9), slider (10), transformer main part (4) set up the inside in shell (1), exhaust fan (5) set up the inner wall top at shell (1), dust screen (6) set up at the top of shell (1) and are located the position of exhaust fan (5), damping device (7) set up between the both sides that correspond bottom shell (1) inner wall bottom and transformer main part (4) bottom, filter screen (8) set up in the corresponding both sides of shell (1) surface bottom and are located the position of housing (3), cleaning device (9) set up in the inner wall bottom of shell (1) and are close to the position of filter screen (8), slider (10) are fixed in transformer main part (4) surface corresponding both sides and with between shell (1) The sliding connection is carried out;
the damping device (7) is provided with a frame body (71), a pressing plate (72), an elastic bag (73), a guide column (74) and a spring (75), the bottom of the frame body (71) is fixedly connected with the bottom of the inner wall of the shell (1), the pressing plate (72) is connected in the frame body (71) in a sliding mode and located at the top of the frame body, the elastic bag (73) is arranged in the frame body (71) and located at the bottom of the pressing plate (72), the top end of the guide column (74) is fixedly connected with the bottom of the transformer main body (4), the surface of the guide column (74) is connected with the frame body (71) in a sliding mode, and the spring (75) is fixed between the top of the frame body (71) and the two corresponding sides of the bottom of the transformer main body (4) and located on the surface of the guide column (74);
a containing cavity matched with the pressure plate (72) and the elastic bag (73) is arranged in the frame body (71), the top of the surface of the elastic bag (73) is tightly attached to the bottom of the pressure plate (72), and the bottom of the surface of the elastic bag (73) is tightly attached to the bottom of the inner wall of the shell (1);
the top of the pressing plate (72) is fixedly connected with the bottom of the transformer main body (4), and the top of the pressing plate (72) is provided with a sliding hole matched with the guide post (74).
2. A power electrical transformer with a dust-proof function according to claim 1, characterized in that: cleaning device (9) are equipped with arc base member (91), air flue (92), striking ball (93), extension spring (94), secondary knocking device (95), the bottom of arc base member (91) and the inner wall bottom fixed connection of shell (1), the inside at arc base member (91) is seted up in air flue (92), striking ball (93) cooperation is connected on the top of arc base member (91), extension spring (94) are fixed and are located the inside of air flue (92) between striking ball (93) surface and the inside corresponding both sides of arc base member (91), secondary knocking device (95) set up the position at the surperficial top of arc base member (91) and are located striking ball (93).
3. A power electrical transformer with a dust-proof function according to claim 2, characterized in that: the top end of the arc-shaped base body (91) is provided with an arc-shaped sealing groove matched with the impact ball (93), and the secondary knocking device (95) is connected with the impact ball (93) and the arc-shaped base body (91) in a matched mode.
4. A power electrical transformer with a dust-proof function according to claim 2, characterized in that: secondary knocking device (95) is equipped with arc (951), arc bulb striking rod (952), reset spring (953), the one end of arc (951) and the surperficial top fixed connection of arc base member (91), arc bulb striking rod (952) cooperation is connected in the inside of arc (951), reset spring (953) are fixed between arc bulb striking rod (952) tip and the inside corresponding both sides of arc (951).
5. A power electrical transformer with dust-proof function according to claim 4, characterized in that: arc-shaped sliding holes matched with the arc-shaped ball head impact rods (952) are formed in the arc-shaped pieces (951).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210057349.3A CN114093601B (en) | 2022-01-19 | 2022-01-19 | Power electrical transformer with dustproof function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210057349.3A CN114093601B (en) | 2022-01-19 | 2022-01-19 | Power electrical transformer with dustproof function |
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| Publication Number | Publication Date |
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| CN114093601A CN114093601A (en) | 2022-02-25 |
| CN114093601B true CN114093601B (en) | 2022-04-08 |
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| CN202210057349.3A Active CN114093601B (en) | 2022-01-19 | 2022-01-19 | Power electrical transformer with dustproof function |
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| CN117225100B (en) * | 2023-10-08 | 2024-03-19 | 石家庄良村热电有限公司 | Beat formula dust and prevent blockking up air distribution board |
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| CN213636662U (en) * | 2020-11-16 | 2021-07-06 | 洛阳市通航电子设备有限公司 | Locomotive air conditioner power supply device with dust removal function |
| CN112927890B (en) * | 2021-04-25 | 2022-09-13 | 湖北荆能输变电工程有限公司 | Dustproof dry-type transformer that makes an uproar that falls |
| CN113471838A (en) * | 2021-07-22 | 2021-10-01 | 孙箐骏 | Power distribution cabinet for power distribution system |
| CN215497612U (en) * | 2021-08-10 | 2022-01-11 | 山东同畅电力装备技术有限公司 | High-low voltage switch cabinet dustproof mechanism |
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