CN111203038A - Filter screen assembly for wind turbine generator frequency converter - Google Patents
Filter screen assembly for wind turbine generator frequency converter Download PDFInfo
- Publication number
- CN111203038A CN111203038A CN201910952172.1A CN201910952172A CN111203038A CN 111203038 A CN111203038 A CN 111203038A CN 201910952172 A CN201910952172 A CN 201910952172A CN 111203038 A CN111203038 A CN 111203038A
- Authority
- CN
- China
- Prior art keywords
- frame
- filter screen
- groove
- clamping
- aluminum alloy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- B01D46/0002—Casings; Housings; Frame constructions
- B01D46/0005—Mounting of filtering elements within casings, housings or frames
-
- 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
- B01D46/88—Replacing filter elements
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a filter screen component for a frequency converter of a wind turbine generator, relating to the technical field of wind power auxiliary equipment, in order to solve the inconvenient technical problem of current filter screen subassembly dismouting that is used for wind turbine generator system converter, including the rectangle passageway that forms in fixed square frame and it, be provided with in the rectangle passageway and keep off the frame, keep off the equal one-to-one in close contact with of four lateral walls of frame and fix in four inside wall below of fixed square frame, a standing groove has all been seted up at the inside preceding lateral wall top of fixed square frame and back lateral wall top, the inside screens groove of having seted up of fixed square frame, the inside slidable cardboard that is provided with of standing groove, a post groove has been seted up respectively to cardboard both ends bottom surface, the post inslot is provided with the card post, be provided with compression spring between card post top surface and the post groove bottom, two circular slots have been seted up to screens tank bottom surface, the filter mechanism has.
Description
Technical Field
The invention relates to the technical field of wind power auxiliary equipment, in particular to a filter screen assembly for a frequency converter of a wind turbine generator.
Background
Wind power generation is wind power, a motor set usually used for wind power is in a severe environment, namely wind sand is extremely large, and a frequency converter module is easy to generate an overtemperature phenomenon, so that the frequency converter is stopped due to failure and the generated energy of a fan is influenced. The main reason of discovering the module overtemperature through the inspection is converter cooling system problem, mainly because converter filter screen blocking leads to, and be in the external world for a long time of wind-powered electricity generation's motor group, direct and a large amount of sand blown by the wind contact, converter department filter screen blocks very easily again in it, this just needs in time to maintain the filter screen, the paper filter screen that the filter screen of some converter ventiduct departments used now, easy emergence is out of shape and damages during the clearance, need change once every year, the expense is higher, the stainless steel filter screen of other converter ventiduct departments usefulness, also there is the dismouting inconvenient, it is extremely low at daily maintenance in-process efficiency, thereby influence the generating efficiency.
Disclosure of Invention
The invention aims to: the invention provides a filter screen assembly for a wind turbine generator frequency converter, which aims to solve the technical problem that the filter screen assembly for the wind turbine generator frequency converter is inconvenient to disassemble and assemble.
The invention specifically adopts the following technical scheme for realizing the purpose:
a filter screen component for a wind turbine frequency converter comprises a fixed frame and a rectangular channel formed in the fixed frame, wherein a baffle frame is arranged in the rectangular channel, four outer side walls of the baffle frame are respectively in close contact with and fixed below four inner side walls of the fixed frame, the top of a front side wall and the top of a rear side wall in the fixed frame are respectively provided with a placement groove with the same structure, the top of a left side wall and the top of a right side wall in the fixed frame are respectively provided with a clamping groove communicated with different ends of the same placement groove, a slidable clamping plate is arranged in the placement groove, the width of the clamping plate is the same as the depth of the placement groove, two ends of the clamping plate are inserted into the clamping grooves, the bottom surfaces of two ends of the clamping plate are respectively provided with a column groove, a clamping column is arranged in each column groove, a compression spring is arranged between the top surface of the clamping column and the bottom surface, when the standing groove was put into completely to the cardboard, a circular slot was gone into to the card post card this moment, and when the cardboard was pulled out to the position that can not stimulate, another circular slot was gone into to the card post card this moment, has placed filtering mechanism on the shelves frame, and filtering mechanism height is less than the distance between standing groove bottom surface and the shelves frame top surface.
On the basis of the technical scheme, the filtering mechanism comprises a rectangular filtering frame, the rectangular filtering frame is composed of four aluminum alloy strips and four metal buckles, the bottom of each aluminum alloy strip is hollow, two clamping strips parallel to the side faces of the aluminum alloy strips are arranged in the center of the aluminum alloy strip, one end of each metal buckle is clamped between two clamping strips of one aluminum alloy strip, the other end of each metal buckle is clamped between two clamping strips of the adjacent aluminum alloy strip, and stainless steel filter screens are fixed on all the clamping strips.
On the basis of the technical scheme, the stainless steel filter screen is bonded on the clamping strips through the sealing rubber strips, the rubber layer is fixedly filled between the two clamping strips on the aluminum alloy strip, and the stainless steel filter screen is fixed through a plurality of rivets which are punched into the rubber layer.
On the basis of the technical scheme, a plurality of rectangular grooves are formed in the edge of the top surface of the clamping plate.
The invention has the following beneficial effects:
1. the filter mechanism fixing device is compact in structure and reasonable in design, the whole fixing frame is fixed in the corresponding vent, when the filter mechanism needs to be maintained and replaced, only two clamping plates need to be pushed into the placing groove by hands, the clamping buckles are separated from the circular grooves and enter the other circular groove, the clamping plates are kept still under the elastic force of the spring, the filter mechanism can be directly lifted, the whole dismounting process is simple and convenient, time and labor are saved, when the filter mechanism is maintained, the filter mechanism is placed on the baffle frame in the rectangular channel, then the clamping plates are pulled to enable the clamping buckles to enter the other circular grooves, and therefore the filter mechanism is fixed, the whole mounting process is simple and convenient as well, and time and labor are saved; through the simple contact cooperation between the built-in shelves frame of fixed square frame and shelves frame and the filtering mechanism, effectively prevent to have the gap between filtering mechanism and the rectangle passageway, let the air of business turn over can only follow the filtering mechanism and pass through, the practicality is high, whole device does not adopt any screw thread hookup simultaneously, and the installation cost of manufacture is low, and the live time is too long, only need to change filtering mechanism or the filtering mechanism on the filter screen can, need not change whole filtering component, further practice thrift the cost.
2. According to the rectangular filter frame, the rectangular filter frame is formed by mutually connecting and fixing the aluminum alloy strips and the metal buckles, when the rectangular filter frame is installed, only the adjacent aluminum alloy strips need to be aligned, and then the metal buckles are inserted, and when the four aluminum alloy strips are installed, the rectangular filter frame also has a self-locking function, so that the rectangular filter frame with the whole lattice is prevented from falling off.
3. According to the invention, the stainless steel filter screen is fixed through the sealing rubber strip on one hand, and is inserted into the rubber layer through the rivet on the other hand for fixation, so that the fixation reliability is effectively improved, and meanwhile, the stainless steel filter screen is positioned on the outermost side of the aluminum alloy strip, so that the disassembly efficiency is greatly improved compared with the existing mode that the filter screen is clamped in the center or the interior.
4. According to the invention, the rectangular groove can assist an operator to push and pull the whole clamping plate.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and that for those skilled in the art, other relevant drawings can be obtained according to the drawings without inventive effort, wherein:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the construction of the module frame of the present invention;
FIG. 3 is a schematic view of the present invention showing the mounting of the card on the assembly frame;
FIG. 4 is a schematic view of the present invention showing the mounting of the card on the assembly frame;
FIG. 5 is a schematic view showing the connection of the locking groove, locking plate, post groove, locking post and compression spring according to the present invention;
FIG. 6 is a schematic view of the structure of the filter mechanism of the present invention;
FIG. 7 is a schematic view of the installation structure of the stainless steel filter screen according to the present invention;
reference numerals:
1-fixed square frame, 2-rectangular channel, 3-baffle frame, 4-placing groove, 5-clamping groove, 6-clamping plate, 7-column groove, 8-clamping column, 9-compression spring, 10-circular groove, 11-filtering mechanism, 12-rectangular filtering frame, 13-aluminum alloy strip, 14-metal buckle, 15-clamping strip, 16-stainless steel filtering net, 17-rubber layer, 18-rivet and 19-rectangular groove.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.
It should be noted that: reference numerals and letters in the following figures denote similar items, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention usually place when in use, and are simply used for simplifying the description of the present invention, but do not indicate or imply that the devices or elements indicated must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; mechanical connection or electrical connection can be realized; the two original pieces can be directly connected or indirectly connected through an intermediate medium, or the two original pieces can be communicated with each other. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
As shown in fig. 1 to 7, this embodiment provides a filter screen assembly for a wind turbine generator converter, which includes a fixed frame 1 and a rectangular channel 2 formed therein, a retaining frame 3 is disposed in the rectangular channel 2, four outer sidewalls of the retaining frame 3 are all fixed below four inner sidewalls of the fixed frame 1 one by one, a placing groove 4 having the same structure is disposed on the top of each of the front and rear sidewalls of the fixed frame 1, a locking groove 5 communicating with different ends of the same placing groove 4 is disposed on the top of each of the left and right sidewalls of the fixed frame 1, a slidable locking plate 6 is disposed in the placing groove 4, the width of the locking plate 6 is the same as the depth of the placing groove 4, two ends of the locking plate 6 are inserted into the locking grooves 5, a column groove 7 is disposed on the bottom of each of the two ends of the locking plate 6, a locking column 8 is disposed in the column groove 7, a compression spring 9 is disposed between the, card 8 bottom in close contact with screens groove 5 bottom surfaces, two homoenergetic and card 8 complex circular slots 10 have been seted up to screens groove 5 bottom surfaces, when standing groove 4 was put into completely to cardboard 6, 8 card of card this moment are gone into in a circular slot 10, when cardboard 6 was pulled out to the position that can not stimulate, 8 card of card this moment are gone into another circular slot 10, filtering mechanism 11 has been placed on the shelves frame, filtering mechanism 11 highly is less than the distance between 4 bottom surfaces of standing groove and the shelves frame top surface.
In the embodiment, the whole fixed square frame 1 is fixed in the corresponding vent, when the filtering mechanism 11 needs to be maintained and replaced, only two clamping plates 6 are pushed to the inside of the placing groove 4 by hands, at the moment, the clamping plates are separated from the circular groove 10 and enter the other circular groove 10, the clamping plates 6 are kept still under the elastic force of the spring, at the moment, the filtering mechanism 11 can be directly lifted, the whole dismounting process is simple and convenient, time and labor are saved, after the filtering mechanism 11 is maintained, the filtering mechanism 11 is firstly placed on the baffle frame in the rectangular channel 2, then the clamping plates 6 are pulled to enable the clamping plates to enter the other circular groove 10, and therefore the filtering mechanism 11 is fixed, the whole mounting process is also simple and convenient, and time and labor are saved; through the simple contact cooperation between the built-in shelves frame of fixed square frame 1 and shelves frame and the filtering mechanism 11, effectively prevent to have the gap between filtering mechanism 11 and the rectangular channel 2, let the air of business turn over can only follow filtering mechanism 11 and pass through, the practicality is high, whole device does not adopt any screw coupling simultaneously, the installation cost of manufacture is low, when the live time is too long, only need change filtering mechanism 11 or filtering mechanism 11 on the filter screen can, need not change whole filtering component, further practice thrift the cost.
Example 2
As shown in fig. 1 to 7, the present embodiment is further optimized on the basis of embodiment 1, specifically:
the filtering mechanism 11 comprises a rectangular filtering frame 12, the rectangular filtering frame 12 is composed of four aluminum alloy strips 13 and four metal buckles 14, the bottom of each aluminum alloy strip 13 is hollow, two clamping strips 15 parallel to the side faces of the aluminum alloy strip 13 are arranged in the center of the aluminum alloy strip 13, one end of each metal buckle 14 is clamped between the two clamping strips 15 of one aluminum alloy strip 13, the other end of each metal buckle is clamped between the two clamping strips 15 of the adjacent aluminum alloy strips 13, and a stainless steel filter screen 16 is fixed on each clamping strip 15.
In this embodiment, rectangle filter frame 12 is fixed through aluminium alloy strip 13 and metal buckle 14 interconnect and forms, only need align adjacent aluminium alloy strip 13 earlier during the installation, insert metal buckle 14 again can, after four aluminium alloy strip 13 installations are accomplished, still have self-locking function, prevent that whole check rectangle filter frame 12 from scattering the frame and dropping.
Example 3
As shown in fig. 1 to 7, the present embodiment is further optimized on the basis of embodiment 2, specifically:
stainless steel filter screen 16 bonds on calorie strip 15 through joint strip, and two calorie strips 15 on the aluminium alloy strip 13 are filled between and are fixed with rubber layer 17, and stainless steel filter screen 16 is fixed through a plurality of rivets 18 of beating into rubber layer 17.
In this embodiment, stainless steel filter screen 16 is fixed through joint strip on the one hand, and on the other hand inserts rubber layer 17 fixedly through rivet 18, effectively improves fixed reliability, and stainless steel filter screen 16 is located aluminium alloy strip 13 outside simultaneously, compares with current central authorities or inside the filter screen card income, and it has greatly improved to dismantle efficiency.
Example 4
As shown in fig. 1 to 7, this embodiment is further optimized based on any one of embodiments 1 to 3, specifically:
the top edge of the clamping plate 6 is provided with a plurality of rectangular grooves 19.
In this embodiment, the rectangular slot 19 can assist the operator in pushing and pulling the entire card 6.
The above description is an embodiment of the present invention. The foregoing is a preferred embodiment of the present invention, and the preferred embodiments in the preferred embodiments can be combined and used in any combination if not obviously contradictory or prerequisite to a certain preferred embodiment, and the specific parameters in the embodiments and examples are only for the purpose of clearly illustrating the invention verification process of the inventor and are not intended to limit the patent protection scope of the present invention, which is subject to the claims and the equivalent structural changes made by the content of the description and the drawings of the present invention are also included in the protection scope of the present invention.
Claims (4)
1. A filter screen assembly for a wind turbine generator frequency converter is characterized by comprising a fixed square frame (1) and a rectangular channel (2) formed in the fixed square frame, wherein a blocking frame (3) is arranged in the rectangular channel (2), four outer side walls of the blocking frame (3) are fixed below four inner side walls of the fixed square frame (1) one by one, placing grooves (4) with the same structure are formed in the top of the front side wall and the top of the rear side wall in the fixed square frame (1), clamping grooves (5) communicated with different ends of the same placing groove (4) are formed in the top of the left side wall and the top of the right side wall in the fixed square frame (1), a slidable clamping plate (6) is arranged in the placing groove (4), the width of the clamping plate (6) is the same as the depth of the placing groove (4), two ends of the clamping plate (6) are inserted into the clamping grooves (5), and column grooves (7), be provided with card post (8) in post groove (7), be provided with compression spring (9) between card post (8) top surface and post groove (7) bottom, card post (8) bottom in close contact with screens groove (5) bottom surface, two homoenergetic and card post (8) complex circular slot (10) have been seted up to screens groove (5) bottom surface, when standing groove (4) are put into completely in cardboard (6), card post (8) card is gone into in a circular slot (10) this moment, when cardboard (6) is pulled out to the position that can not stimulate, card post (8) card is gone into another circular slot (10) this moment, filtering mechanism (11) have been placed on the shelves frame, filtering mechanism (11) highly are less than the distance between standing groove (4) bottom surface and the shelves frame top surface.
2. The filter screen assembly for the wind turbine generator frequency converter is characterized in that the filter mechanism (11) comprises a rectangular filter frame (12), the rectangular filter frame (12) is composed of four aluminum alloy strips (13) and four metal buckles (14), the bottom of each aluminum alloy strip (13) is hollow, two clamping strips (15) parallel to the side faces of the aluminum alloy strips (13) are arranged in the center of the aluminum alloy strip (13), one end of each metal buckle (14) is clamped between the two clamping strips (15) of one aluminum alloy strip (13), the other end of each metal buckle (14) is clamped between the two clamping strips (15) of the adjacent aluminum alloy strip (13), and stainless steel filter screens (16) are fixed on all the clamping strips (15).
3. The filter screen assembly for the frequency converter of the wind turbine generator set according to claim 2, wherein the stainless steel filter screen (16) is bonded on the clamping strips (15) through sealing rubber strips, a rubber layer (17) is fixedly filled between the two clamping strips (15) on the aluminum alloy strip (13), and the stainless steel filter screen (16) is fixed in position through a plurality of rivets (18) which are driven into the rubber layer (17).
4. The filter screen assembly for the frequency converter of the wind turbine generator according to any one of claims 1 to 3, wherein a plurality of rectangular grooves (19) are formed at the edge of the top surface of the clamping plate (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910952172.1A CN111203038A (en) | 2019-10-08 | 2019-10-08 | Filter screen assembly for wind turbine generator frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910952172.1A CN111203038A (en) | 2019-10-08 | 2019-10-08 | Filter screen assembly for wind turbine generator frequency converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111203038A true CN111203038A (en) | 2020-05-29 |
Family
ID=70780421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910952172.1A Pending CN111203038A (en) | 2019-10-08 | 2019-10-08 | Filter screen assembly for wind turbine generator frequency converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111203038A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112704968A (en) * | 2020-12-29 | 2021-04-27 | 南京华士电子科技有限公司 | Fixing structure and method for pressing sliding clamping type ventilation filter screen plate |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100459920B1 (en) * | 2002-10-01 | 2004-12-03 | 에스케이 텔레콤주식회사 | Board vibration preventing device of mobile exchange |
| CN203240733U (en) * | 2013-04-19 | 2013-10-16 | 徐培展 | Activated carbon air strainer |
| CN206934918U (en) * | 2017-06-26 | 2018-01-30 | 杭州奕涵电气有限公司 | A kind of cesspool |
| CN209200920U (en) * | 2019-01-25 | 2019-08-02 | 湘潭方正电气成套设备有限公司 | A kind of modular high-power high frequency switch power structure |
| CN110180700A (en) * | 2019-07-05 | 2019-08-30 | 天津科建防腐科技有限公司 | Inner ring oxygen spray powder pipette tips |
-
2019
- 2019-10-08 CN CN201910952172.1A patent/CN111203038A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100459920B1 (en) * | 2002-10-01 | 2004-12-03 | 에스케이 텔레콤주식회사 | Board vibration preventing device of mobile exchange |
| CN203240733U (en) * | 2013-04-19 | 2013-10-16 | 徐培展 | Activated carbon air strainer |
| CN206934918U (en) * | 2017-06-26 | 2018-01-30 | 杭州奕涵电气有限公司 | A kind of cesspool |
| CN209200920U (en) * | 2019-01-25 | 2019-08-02 | 湘潭方正电气成套设备有限公司 | A kind of modular high-power high frequency switch power structure |
| CN110180700A (en) * | 2019-07-05 | 2019-08-30 | 天津科建防腐科技有限公司 | Inner ring oxygen spray powder pipette tips |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112704968A (en) * | 2020-12-29 | 2021-04-27 | 南京华士电子科技有限公司 | Fixing structure and method for pressing sliding clamping type ventilation filter screen plate |
| CN112704968B (en) * | 2020-12-29 | 2022-08-05 | 南京华士电子科技有限公司 | Fixing structure and method for pressing sliding clamping type ventilation filter screen plate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111203038A (en) | Filter screen assembly for wind turbine generator frequency converter | |
| CN216038908U (en) | Bridge drip filter equipment | |
| CN213093637U (en) | Electrical cabinet capable of effectively delaying aging of electrical element | |
| CN210725647U (en) | Cabinet of network base station monitoring equipment | |
| CN211266851U (en) | Photovoltaic panel assembly with wind pressure resistance | |
| CN211152408U (en) | Terminal triggering type energy-saving data acquisition instrument | |
| CN209042168U (en) | The adjustable wisdom lamp stand of electrodeless positioning | |
| CN218734012U (en) | Solar panel mounting device | |
| CN111404398A (en) | Energy storage converter cabinet and energy storage system | |
| CN219286883U (en) | Electric energy metering box | |
| CN214824197U (en) | Unmanned aerial vehicle photoelectric pod equipment mounting structure | |
| CN220653859U (en) | Ventilation hood of inverter and inverter | |
| CN218687423U (en) | Filter equipment, generator and wind generating set | |
| CN220416736U (en) | LED screen mounting structure | |
| CN218888468U (en) | Device for fixing photovoltaic panel | |
| CN215542751U (en) | Load separator shell | |
| CN214279602U (en) | Distributed storage device based on block chain | |
| CN215645691U (en) | Convenient installation device of low-voltage distribution box | |
| CN218603775U (en) | Outdoor communication cabinet | |
| CN112530092B (en) | Electricity charge collection device | |
| CN212614093U (en) | Fixing device for installing protective net | |
| CN115762964B (en) | Integrated cabinet body with high protection level for dry type magnetic control reactor | |
| CN214576062U (en) | Quick-mounting structure for middle-side bracket of telescopic stand | |
| CN220912472U (en) | Base structure for photoelectric detector | |
| CN218768277U (en) | Fill electric pile with isolation function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200529 |
|
| RJ01 | Rejection of invention patent application after publication |