CN112038913A - Light shock attenuation switch board - Google Patents
Light shock attenuation switch board Download PDFInfo
- Publication number
- CN112038913A CN112038913A CN202010908083.XA CN202010908083A CN112038913A CN 112038913 A CN112038913 A CN 112038913A CN 202010908083 A CN202010908083 A CN 202010908083A CN 112038913 A CN112038913 A CN 112038913A
- Authority
- CN
- China
- Prior art keywords
- aluminum alloy
- cabinet body
- alloy cabinet
- clamping strip
- outer aluminum
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/306—Accessories, e.g. windows
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/54—Anti-seismic devices or installations
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Springs (AREA)
Abstract
The invention relates to a light-weight shock-absorption power distribution cabinet which comprises an inner aluminum alloy cabinet body and an outer aluminum alloy cabinet body, wherein a shock absorption assembly is arranged between the inner aluminum alloy cabinet body and the outer aluminum alloy cabinet body, fans are embedded at two sides of the outer aluminum alloy cabinet body, buffer protection assemblies are arranged at two sides between the outer aluminum alloy cabinet body and the inner aluminum alloy cabinet body, and the fans are arranged outside the corresponding buffer protection assemblies; buffering protection subassembly is equipped with a plurality of crane pylons including arranging last card strip and lower card strip on the outer aluminum alloy cabinet body inner wall in, going up card strip and lower card strip between, the upper and lower T type portion card of every crane pylon is in a set of boss portion that corresponds, and the terminal surface that the arc portion is close to the interior aluminum alloy cabinet body connects a buffering cotton jointly, and the buffering cotton is for the circular-arc structure with the concentric setting of arc portion, and the cotton middle part of buffering contacts with the interior aluminum alloy cabinet body. The invention has the following advantages: realize the lightweight design of the switch board cabinet body, reduce the space height of switch board, realize the shock attenuation to each position of switch board.
Description
The technical field is as follows:
the invention belongs to the field of power distribution cabinets, and particularly relates to a light-weight damping power distribution cabinet.
Background art:
the switch board is the important device in the power system, is distribution system's final stage equipment, and the switch board is widely used in each trade, receives when external strong earthquake feel suddenly when the switch board, and equipment such as inside electric elements, circuit and transformer can produce bad influence because of this kind of vibrations, especially the inside relevant circuit that is used for the distribution of switch board and the transformer that is used for improving transmission line voltage, and these two parts can normally work, will directly relate to the distribution performance of whole switch board and the efficiency of carrying the electric energy.
At present the switch board for reaching the shock attenuation effect, set up damping spring on the supporting leg of the cabinet body below, like the switch board of 201611187670.4 brake of being convenient for remove and being convenient for, the cabinet body below sets up the damping box promptly, sets up many damping spring between damping box and the cabinet body, and cabinet body lower surface also sets up a plurality of damping spring to play the effect of shock attenuation buffering to the cabinet body, there is following defect: 1. the power distribution cabinet body is of a metal box structure, so that the weight is large, pressure is generated on a plurality of damping springs, and the damping effect is relatively reduced; 2. the damping structure has a certain damping effect on longitudinal vibration, the damping effect on lateral vibration is not good, and the damping structure is particularly used for a power distribution cabinet in rail transit and cannot realize damping of vibration in all directions; 3. the power distribution cabinet with the structure needs to be heightened, and the space height of the power distribution cabinet is increased.
The invention content is as follows:
the invention aims to overcome the defects and provide a light-weight damping power distribution cabinet to solve the technical problem.
The purpose of the invention is realized by the following technical scheme: a light damping power distribution cabinet comprises an inner aluminum alloy cabinet body and an outer aluminum alloy cabinet body, wherein a damping assembly is arranged between the inner aluminum alloy cabinet body and the outer aluminum alloy cabinet body, fans are embedded on two sides of the outer aluminum alloy cabinet body, a plurality of heat dissipation holes are formed in the side wall of the inner aluminum alloy cabinet body, buffering protection assemblies are arranged on two sides between the outer aluminum alloy cabinet body and the inner aluminum alloy cabinet body, and the fans are arranged outside the corresponding buffering protection assemblies;
the buffer protection component comprises an upper clamping strip and a lower clamping strip which are arranged on the inner wall of the outer aluminum alloy cabinet body, the upper clamping strip and the lower clamping strip are arranged in a corresponding way up and down, and go up the gib block and be equipped with a plurality of crane span structures down between the gib block, a plurality of crane span structures level evenly distributed is between last gib block and lower gib block, go up gib block and lower gib block for the C type column structure that the opening set up in opposite directions, the crane span structure includes the last T type portion of being connected with last gib block, lower T type portion of being connected with lower gib block and arrange in the arc portion between last T type portion and the lower T type portion, the opening of arc portion sets up towards outside aluminum alloy cabinet body, the C type port of going up gib block and lower gib block is equipped with multiunit boss portion, the upper and lower T type portion card of each crane span structure is in a set of boss portion that corresponds, the buffer cotton is connected jointly to the terminal surface that the arc portion is close to the interior aluminum alloy cabinet body, the buffer cotton is the circular-arc structure with the concentric setting of arc portion.
The invention is further improved in that: a connecting part is arranged between the adjacent circular arc parts.
The invention is further improved in that: the damping assembly comprises a plurality of first springs arranged between the two sides of the inner aluminum alloy cabinet body and the two sides of the outer aluminum alloy cabinet body and two damping bodies arranged between the bottom of the inner aluminum alloy cabinet body and the bottom of the outer aluminum alloy cabinet body.
The invention is further improved in that: the central axes of the aluminum alloy cabinet bodies in the two shock absorbers are arranged in axial symmetry.
The invention is further improved in that: the shock absorber includes the cylinder body with interior aluminum alloy cabinet body outer wall bottom fixed connection and with outer aluminum alloy cabinet body inner wall bottom fixed connection's piston rod, the upper end of piston rod extends to in the cylinder body, and the upper end of piston rod has the piston, and the piston rod overlaps with the outside cover of cylinder body and is equipped with the second spring.
The invention is further improved in that: the thickness of the buffer cotton is 2-3 cm.
Compared with the prior art, the invention has the following advantages:
1. the double-layer aluminum alloy structure combining the inner aluminum alloy cabinet body and the outer aluminum alloy cabinet body is adopted, the light-weight design of the power distribution cabinet body is realized, the weight pressure on the damping assembly is reduced, the damping effect of the damping assembly is influenced, the damping assembly is arranged between the inner aluminum alloy cabinet body and the outer aluminum alloy cabinet body, the space height of the power distribution cabinet is reduced, the damping of all directions of the power distribution cabinet is realized through the arrangement of the first spring for transverse buffering, the piston for longitudinal buffering and the second spring for longitudinal buffering, and the damping effect is further improved.
2. The buffer protection group is arranged in the cavity between the two sides of the inner aluminum alloy cabinet body and the two sides of the outer aluminum alloy cabinet body, and the buffer protection group is arranged to play a certain supporting and stabilizing role on the two sides of the inner aluminum alloy cabinet body. When interior aluminum alloy cabinet body receives the side direction vibrations, make the first spring extrusion atress of this side, if when the atress is great, can't realize kick-backing fast, very easily make first spring deformation damage, the connection stability of the interior aluminum alloy cabinet body can't be guaranteed, and buffer protection group uses with two first spring cooperations, can effectively avoid this problem.
Description of the drawings:
fig. 1 is a schematic structural diagram of a light-weight damping power distribution cabinet of the present invention.
Fig. 2 is a schematic structural diagram of a buffer protection group of the light-weight shock-absorbing power distribution cabinet.
FIG. 3 is a sectional view taken along line A-A of FIG. 2;
fig. 4 is an enlarged schematic view of structure B of fig. 2.
Reference numbers in the figures:
1-an inner aluminum alloy cabinet body, 2-an outer aluminum alloy cabinet body, 3-a damping component, 4-a fan and 5-a buffer protection group;
31-a first spring, 32-a shock absorber, 321-a cylinder body, 322-a piston rod, 323-a second spring and 324-a piston;
51-upper clamping strip, 52-lower clamping strip, 53-bridge, 54-boss part, 55-buffer cotton, 56-connecting part, 531-upper T-shaped part, 532-arc part and 533-lower T-shaped part.
The specific implementation mode is as follows:
for the purpose of enhancing the understanding of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.
In the description of the present invention, it is to be understood that the terms indicating an orientation or positional relationship, such as one based on the drawings, are used only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the structure or unit indicated must have a specific orientation, and thus, are not to be construed as limiting the present invention.
In the present invention, unless otherwise specified and limited, terms such as "connected," "provided," "having," and the like are to be understood in a broad sense, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, or directly connected, and may be connected through an intermediate medium, so that those skilled in the art can understand the basic meaning of the above terms in the present invention according to specific situations.
Fig. 1 shows an embodiment of a light-weight shock-absorption power distribution cabinet, which includes an inner aluminum alloy cabinet body 1 and an outer aluminum alloy cabinet body 2, wherein a shock absorption assembly 3 is arranged between the inner aluminum alloy cabinet body 1 and the outer aluminum alloy cabinet body 2, fans 4 are embedded on two sides of the outer aluminum alloy cabinet body 2, a plurality of heat dissipation holes are formed in the side wall of the inner aluminum alloy cabinet body 1, buffer protection assemblies 5 are arranged on two sides between the outer aluminum alloy cabinet body 2 and the inner aluminum alloy cabinet body 1, and the fans 4 are arranged outside the corresponding buffer protection assemblies 5;
as shown in fig. 2 to 4, the buffer protection assembly 5 includes an upper clamping strip 51 and a lower clamping strip 52 disposed on the inner wall of the outer aluminum alloy cabinet 2, the upper clamping strip 51 and the lower clamping strip 52 are disposed corresponding to each other up and down, and a plurality of bridges 53 are disposed between the upper clamping strip 51 and the lower clamping strip 52, the bridges 53 are horizontally and uniformly distributed between the upper clamping strip 51 and the lower clamping strip 52, the upper clamping strip 51 and the lower clamping strip 52 are C-shaped structures with openings facing each other, the bridges 53 include an upper T-shaped portion 531 connected with the upper clamping strip 51 in a clamping manner, a lower T-shaped portion 533 connected with the lower clamping strip 52 in a clamping manner, and an arc portion 532 disposed between the upper T-shaped portion 531 and the lower T-shaped portion 533, an opening of the arc portion 532 is disposed facing the outer aluminum alloy cabinet 2, a plurality of sets of boss portions 54 are disposed at the C-shaped ports of the upper clamping strip 51 and the lower clamping strip 52, the upper and lower T-shaped portions of each bridge 53 are clamped in the corresponding set of boss portions 54, and the arc portion 532 is adjacent, the buffer cotton 55 is of an arc-shaped structure concentrically arranged with the arc part 532, and the middle part of the buffer cotton 55 is in contact with the inner aluminum alloy cabinet body 1.
The double-layer aluminum alloy structure combining the inner aluminum alloy cabinet body 1 and the outer aluminum alloy cabinet body 2 is adopted, the light-weight design of the power distribution cabinet body is realized, the weight pressure on the damping assembly 3 is reduced, the damping effect of the damping assembly is influenced, the damping assembly 3 is arranged between the inner aluminum alloy cabinet body 1 and the outer aluminum alloy cabinet body 2, the space height of the power distribution cabinet is reduced, the damping of all directions of the power distribution cabinet is realized through the arrangement of the first transverse buffering spring 31, the piston 324 and the second longitudinal buffering spring 323, and the damping effect is further improved.
Set up buffering protection group 5 in the cavity between interior aluminum alloy cabinet body 1 and the outer aluminum alloy cabinet body 2 both sides, the setting of buffering protection group 5 plays certain support firm effect to the both sides of the interior aluminum alloy cabinet body 1. When interior aluminum alloy cabinet body 1 receives the side direction vibrations, make the first spring 31 extrusion atress of this side, if when the atress is great, can't realize kick-backing fast, very easily make first spring 31 warp the damage, the connection stability of aluminum alloy cabinet body 1 in can't guaranteeing, and buffer protection group 5 uses with the cooperation of two first springs 31, can effectively avoid this problem.
In the application, the high heat-conducting property of the aluminum alloy material is utilized to realize the heat-radiating efficiency of the power distribution cabinet; when the heat in the inner aluminum alloy cabinet body 1 is high, the heat is concentrated on the side wall of the inner aluminum alloy cabinet body 1 and concentrated in the cavity between the inner aluminum alloy cabinet body 1 and the outer aluminum alloy cabinet body 2 through the heat dissipation holes in the side wall of the aluminum alloy cabinet body 1, and the heat is discharged through the fan 4, so that the rapid heat dissipation effect is achieved.
Further, a connecting portion 56 is provided between adjacent circular arc portions 532.
The setting of a plurality of crane span structures 53 block is at last calorie of strip 51 under with between calorie of strip 52, is clearance distribution, guarantees good thermal diffusivity, and certain cushioning nature can be guaranteed when receiving external force to the circular arc portion 532 of crane span structure 53, and the setting of connecting portion 56 guarantees the connection steadiness between a plurality of crane span structures 53, and when fan 4 work back simultaneously, avoid buffering in the cotton 55 caves in to the clearance between the adjacent crane span structure 53, guarantees to cushion cotton 55 buffering effect.
Further, the damping component 3 comprises a plurality of first springs 31 arranged between the two sides of the inner aluminum alloy cabinet body 1 and the outer aluminum alloy cabinet body 2 and two damping bodies 32 arranged between the bottom of the inner aluminum alloy cabinet body 1 and the bottom of the outer aluminum alloy cabinet body 2.
Further, the two shock absorbers 32 are arranged in axial symmetry with the central axis of the aluminum alloy cabinet body 1.
Further, the damper 32 includes a cylinder 321 fixedly connected to the bottom of the outer wall of the inner aluminum alloy cabinet 1 and a piston rod 322 fixedly connected to the bottom of the inner wall of the outer aluminum alloy cabinet 2, the upper end of the piston rod 322 extends into the cylinder 321, the upper end of the piston rod 322 has a piston 324, and the piston rod 322 and the cylinder 321 are externally sleeved with a second spring 323.
Further, the thickness of the buffer cotton 55 is 2-3 cm.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only for the purpose of illustrating the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a light shock attenuation switch board which characterized in that: the aluminum alloy cabinet comprises an inner aluminum alloy cabinet body (1) and an outer aluminum alloy cabinet body (2), wherein a damping assembly (3) is arranged between the inner aluminum alloy cabinet body (1) and the outer aluminum alloy cabinet body (2), fans (4) are embedded on two sides of the outer aluminum alloy cabinet body (2), a plurality of heat dissipation holes are formed in the side wall of the inner aluminum alloy cabinet body (1), buffering protection assemblies (5) are arranged on two sides between the outer aluminum alloy cabinet body (2) and the inner aluminum alloy cabinet body (1), and the fans (4) are arranged outside the corresponding buffering protection assemblies (5);
the buffer protection assembly (5) comprises an upper clamping strip (51) and a lower clamping strip (52) which are arranged on the inner wall of the outer aluminum alloy cabinet body (2), the upper clamping strip (51) and the lower clamping strip (52) are arranged in a vertically corresponding manner, a plurality of bridges (53) are arranged between the upper clamping strip (51) and the lower clamping strip (52), the bridges (53) are horizontally and uniformly distributed between the upper clamping strip (51) and the lower clamping strip (52), the upper clamping strip (51) and the lower clamping strip (52) are C-shaped structures with opposite openings, each bridge (53) comprises an upper T-shaped part (531) which is connected with the upper clamping strip (51) in a clamping manner, a lower T-shaped part (533) which is connected with the lower clamping strip (52) in a clamping manner, and a C-shaped part (532) which is arranged between the upper T-shaped part (531) and the lower T-shaped circular arc part (533), the opening of the cabinet body (532) is arranged towards the outer aluminum alloy cabinet body (2), and a plurality of groups of C-shaped ports (54) are arranged on the upper clamping strip (51) and the lower clamping strip (52, the upper and lower T-shaped parts of each bridge (53) are clamped in a corresponding group of boss parts (54), the end faces of the arc parts (532) close to the inner aluminum alloy cabinet body (1) are jointly connected with buffering cotton (55), the buffering cotton (55) is of an arc-shaped structure concentrically arranged with the arc parts (532), and the middle parts of the buffering cotton (55) are in contact with the inner aluminum alloy cabinet body (1).
2. The light-weight shock-absorbing power distribution cabinet according to claim 1, characterized in that: and a connecting part (56) is arranged between the adjacent circular arc parts (532).
3. A light-weight shock-absorbing power distribution cabinet according to claim 1 or 2, characterized in that: the damping component (3) comprises a plurality of first springs (31) arranged between the two sides of the inner aluminum alloy cabinet body (1) and the outer aluminum alloy cabinet body (2) and two damping bodies (32) arranged between the bottom of the inner aluminum alloy cabinet body (1) and the bottom of the outer aluminum alloy cabinet body (2).
4. The light-weight shock-absorbing power distribution cabinet according to claim 3, characterized in that: the two shock absorbers (32) are arranged in axial symmetry with the central axis of the aluminum alloy cabinet body (1).
5. The light-weight shock-absorbing power distribution cabinet according to claim 4, characterized in that: shock attenuation body (32) include with interior aluminum alloy cabinet body (1) outer wall bottom fixed connection's cylinder body (321) and with outer aluminum alloy cabinet body (2) inner wall bottom fixed connection's piston rod (322), the upper end of piston rod (322) extends to in cylinder body (321), just the upper end of piston rod (322) has piston (324), the outside cover of piston rod (322) and cylinder body (321) is equipped with second spring (323).
6. The light-weight shock-absorbing power distribution cabinet according to claim 1, characterized in that: the thickness of the buffer cotton (55) is 2-3 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010908083.XA CN112038913A (en) | 2020-09-02 | 2020-09-02 | Light shock attenuation switch board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010908083.XA CN112038913A (en) | 2020-09-02 | 2020-09-02 | Light shock attenuation switch board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112038913A true CN112038913A (en) | 2020-12-04 |
Family
ID=73592270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010908083.XA Pending CN112038913A (en) | 2020-09-02 | 2020-09-02 | Light shock attenuation switch board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112038913A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114121415A (en) * | 2021-12-01 | 2022-03-01 | 句容市江电电器机械有限公司 | Dry-type transformer shell with high strength and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208112033U (en) * | 2018-04-25 | 2018-11-16 | 中科电力装备集团工程安装安徽有限公司 | A kind of high fixed shockproof high-tension switch cabinet of integrated level |
| CN109274003A (en) * | 2018-09-27 | 2019-01-25 | 温志聪 | A kind of outdoor safety type high-voltage board |
| CN111049009A (en) * | 2019-12-05 | 2020-04-21 | 合肥旭森电气设备有限公司 | Power distribution cabinet of power system |
-
2020
- 2020-09-02 CN CN202010908083.XA patent/CN112038913A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208112033U (en) * | 2018-04-25 | 2018-11-16 | 中科电力装备集团工程安装安徽有限公司 | A kind of high fixed shockproof high-tension switch cabinet of integrated level |
| CN109274003A (en) * | 2018-09-27 | 2019-01-25 | 温志聪 | A kind of outdoor safety type high-voltage board |
| CN111049009A (en) * | 2019-12-05 | 2020-04-21 | 合肥旭森电气设备有限公司 | Power distribution cabinet of power system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114121415A (en) * | 2021-12-01 | 2022-03-01 | 句容市江电电器机械有限公司 | Dry-type transformer shell with high strength and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113883213B (en) | Combined shock absorber based on metal rubber and working method thereof | |
| CN113958014A (en) | Self-adaptive variable-rigidity three-dimensional shock isolation/vibration device | |
| CN112038913A (en) | Light shock attenuation switch board | |
| CN111379818A (en) | Low-frequency corner-free shock absorber | |
| CN213508021U (en) | Supporting structure of bridge | |
| CN216750877U (en) | Marine shock-proof type cubical switchboard | |
| CN213473125U (en) | Equipment suspension structure with two-stage vibration reduction and rail vehicle | |
| CN214146419U (en) | Rubber pad for automobile engine shock absorption | |
| CN212839166U (en) | High-pressure-resistance rubber shock absorber | |
| CN213656070U (en) | Novel damping base for generator set | |
| CN210725649U (en) | Balanced damping device of rack | |
| CN210861437U (en) | Shock absorber, air conditioner outdoor unit and air conditioner | |
| CN112878385A (en) | Combined support system | |
| CN212011816U (en) | Dampproofing absorbing outdoor switch board | |
| CN215167167U (en) | Structure supporting plate with cushioning function | |
| CN215120421U (en) | Frame structure of generator set | |
| CN213017480U (en) | Installation device of high-speed laser module | |
| CN214411953U (en) | Protection type indoor and outdoor distribution box has | |
| CN215761944U (en) | Marine engine unit with sound insulation device | |
| CN220672405U (en) | Multilayer chip type multi-core group ceramic capacitor based on MLCC | |
| CN215104628U (en) | Steel damping support with space universality | |
| CN211908086U (en) | Electrical equipment fixing device | |
| CN217640876U (en) | Energy-saving and shock-absorbing transformer assembly | |
| CN215185162U (en) | Power cabinet | |
| CN214994140U (en) | Wallboard of subway station antidetonation usefulness |
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: 20201204 |
|
| RJ01 | Rejection of invention patent application after publication |