CN107834529A - A kind of overvoltage monitoring device suppresses the protection device of cabinet - Google Patents
A kind of overvoltage monitoring device suppresses the protection device of cabinet Download PDFInfo
- Publication number
- CN107834529A CN107834529A CN201711156998.4A CN201711156998A CN107834529A CN 107834529 A CN107834529 A CN 107834529A CN 201711156998 A CN201711156998 A CN 201711156998A CN 107834529 A CN107834529 A CN 107834529A
- Authority
- CN
- China
- Prior art keywords
- cabinet
- protection
- cabinet door
- suppresses
- bull stick
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/044—Physical layout, materials not provided for elsewhere
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20909—Forced ventilation, e.g. on heat dissipaters coupled to components
- H05K7/20918—Forced ventilation, e.g. on heat dissipaters coupled to components the components being isolated from air flow, e.g. hollow heat sinks, wind tunnels or funnels
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
The invention discloses the protection device that a kind of overvoltage monitoring device suppresses cabinet, it is related to voltage protecting apparatus technical field.The present invention includes base；Protection cabinet is provided with base top；Positioning seat is provided with the protection medial surface of cabinet one；U-shaped card slot is provided with positioning seat；Protection cabinet side opening is provided with cabinet door；The surface of cabinet door one is fixedly connected with bull stick；The interspersed positioning seat of bull stick matching；The surface of cabinet door one is provided with magnetic stripe reader；First locking mechanism and air outlet mechanism are provided with base；Second locking mechanism is provided with protection cabinet.The present invention in protection cabinet by setting first locking mechanism and second locking mechanism; and air outlet mechanism is equipped, the protecting effect of overvoltage equipment is effectively enhanced, improves radiating hydrofuge performance; also reach the purpose for preventing non-operator from opening cabinet door operation equipment simultaneously, be adapted to promote.
Description
Technical field
The invention belongs to voltage protecting apparatus technical field, the protection for suppressing cabinet more particularly to a kind of overvoltage monitoring device fills
Put.
Background technology
There are following several overvoltage in daily production and living：Electricity was operated caused by breaker on-off action process
Atmospheric over-voltage, resonance overvoltage etc. caused by arc overvoltage caused by pressure, single-phase earthing and thunderbolt.If for these
Overvoltage equipment protection is improper, it may occur that cable is blown out, motor insulation breakdown, Explosion of on Arrester and voltage transformer are burnt
Accident, unnecessary casualties can be caused when serious.
At present, simple and crude strongbox is typically used for the protection device of these overvoltage equipment, these strongboxs not only radiate
Property and sealing are poor, but also safety problem be present, such as, non-operator can open strongbox cabinet door easily, to excessively electric
Pressure equipment is destroyed or stolen.
Therefore, letter need to work out the protection device that a kind of overvoltage monitoring device suppresses cabinet, to improve the protection of overvoltage product
Effect, reduce large-scale electric equipment and blast occurs or the generation of accident such as burns.
The content of the invention
It is an object of the invention to provide the protection device that a kind of overvoltage monitoring device suppresses cabinet, by being set in protection cabinet
First locking mechanism and second locking mechanism, and air outlet mechanism is equipped, solve overvoltage equipment present in prior art
The problems such as protecting effect difference and heat dispersion difference.
In order to solve the above technical problems, the present invention is achieved by the following technical solutions：
The present invention suppresses the protection device of cabinet, including base for a kind of overvoltage monitoring device；It is provided with and protects in the base top
Protect cabinet；Positioning seat is provided with the protection medial surface of cabinet one；U-shaped card slot is provided with the positioning seat；The protection cabinet side
Opening is provided with cabinet door；The surface of cabinet door one is fixedly connected with bull stick；The interspersed positioning seat of bull stick matching；The cabinet door
One surface is provided with magnetic stripe reader；First locking mechanism is provided with the base；The first locking mechanism includes the first card
Bar, the first drain pan, first rotating shaft and rotating disk；First kelly has two, and two first kellies are symmetricly set on cabinet door one
On surface；Two described first kelly one end are provided with the first through hole；First drain pan is arranged on protection bottom of cabinet portion；Described
One rotating shaft one end is provided with adjustment disk through base；The first drain pan inner bottom surface is provided with support；It is provided with the support
Clutch；Matching is provided with the second rotating shaft in the clutch；Second rotating shaft passes through first bevel gear group with first rotating shaft
Part connects；The rotating disk has two, and two rotating disks are symmetricly set on protection bottom of cabinet face；Two surfaces of rotating disk one are provided with silk
It is female；The screw is connected with the second rotating shaft by second bevel gear component；Screw mandrel is provided with the screw；Described screw mandrel one end is passed through
Protection cabinet is worn to extend to inside protection cabinet.
Further, it is provided with second locking mechanism in the protection cabinet top portion；The second locking mechanism includes the second card
Bar and guide groove；Second kelly has two, and two second kellies are symmetricly set on the surface of cabinet door one；Two second cards
Bar one end is provided with the second through hole；The guide groove has two, and two guide grooves are symmetricly set on protection cabinet inner top surface；Two institutes
State in guide groove and be provided with guide rod；Spring is arranged with the guide rod；The guide rod is fixedly connected with drawstring；Described drawstring one end
It is wrapped in through protection cabinet side wall in first rotating shaft.
Further, the protection bottom of cabinet face is provided with air outlet mechanism；The air outlet mechanism includes the second drain pan and some
First exhaust vent；Some linear arrays of first exhaust vent are in protection bottom of cabinet face；Humiture is provided with second drain pan
Inductor, power supply and ventilating fan；The temperature and humidity sensor, power supply and ventilating fan are located in same circuit loop；Described second
The surface of drain pan one is provided with some second row stomatas；The ventilating fan is located above some second row stomatas.
Further, the surface of cabinet door one is provided with handle.
Further, the bull stick is U-shape structure；The bull stick cross section is square structure；The rod slides are located at
Inside positioning seat；Equal length of the distance between the described bull stick two-arm with positioning seat.
Further, it is provided with circular hole net in the second row stomata；The online Circularhole diameter of circular hole is 1mm.
Further, the surface of cabinet door one is provided with vibrating sensor and alarm.
The invention has the advantages that：
The present invention effectively enhances overvoltage by setting first locking mechanism and second locking mechanism in protection cabinet
The protecting effect of equipment, reach the purpose for preventing non-operator from opening cabinet door operation equipment；By being set in protection bottom of cabinet portion
Air outlet mechanism, the temperature and humidity in protection cabinet is significantly reduced, the service life of overvoltage equipment is extended, improves reality
With value and economic benefit.
Certainly, any product for implementing the present invention it is not absolutely required to reach all the above advantage simultaneously.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, used required for being described below to embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for ability
For the those of ordinary skill of domain, on the premise of not paying creative work, it can also be obtained according to these accompanying drawings other attached
Figure.
Fig. 1 is the structural representation that a kind of overvoltage monitoring device of the present invention suppresses the protection device of cabinet；
Fig. 2 is Fig. 1 side view；
Fig. 3 is the protection cabinet schematic diagram of the present invention；
Fig. 4 is the location seat structure schematic diagram of the present invention.
In accompanying drawing, the list of parts representated by each label is as follows：
1- bases, 2- first locking mechanisms, 3- second locking mechanisms, 4- air outlet mechanisms, 101- protection cabinets, 102- cabinet doors,
103- bull sticks, 104- positioning seats, 105-U type necks, 106- magnetic stripe readers, 107- handles, the kellies of 201- first, 202- first
Drain pan, 203- first rotating shafts, 204- supports, the rotating shafts of 205- second, 206- first bevel gear components, 207- rotating disks, 208- screw mandrels,
209- second bevel gear components, the kellies of 301- second, 302- guide grooves, 303- guide rods, 304- springs, 305- drawstrings, 401- first
Exhaust vent, the drain pans of 402- second, 403- temperature and humidity sensors, 404- power supplys, 405- ventilating fans, 406- second row stomatas.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained all other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
In the description of the invention, it is to be understood that term " perforate ", " on ", " under ", " thickness ", " top ", " in ",
Indicating position or the position relationship such as " length ", " interior ", " surrounding ", it is for only for ease of the description present invention and simplifies description, without
It is that the component of instruction or hint meaning or element must have specific orientation, with specific azimuth configuration and operation, therefore not
It is understood that as limitation of the present invention.
Refer to shown in Fig. 1-4, the present invention suppresses the protection device of cabinet, including base 1 for a kind of overvoltage monitoring device；
Protection cabinet 101 is provided with the top of base 1；
Wherein, protect on the medial surface of cabinet 101 1 and be provided with positioning seat 104；U-shaped card slot 105 is provided with positioning seat 104；
Wherein, the protection side opening of cabinet 101 is provided with cabinet door 102；The surface of cabinet door 102 1 is fixedly connected with bull stick 103；
The interspersed positioning seat 104 of the matching of bull stick 103；
Wherein, the surface of cabinet door 102 1 is provided with magnetic stripe reader 106；
First locking mechanism 2 is provided with base 1；
Wherein, first locking mechanism 2 includes the first kelly 201, the first drain pan 202, first rotating shaft 203 and rotating disk 207；The
One kelly 201 has two, and two first kellies 201 are symmetricly set on the surface of cabinet door 102 1；The one end of two first kelly 201 is set
There is the first through hole；First drain pan 202 is arranged on protection cabinet 101 bottom；The one end of first rotating shaft 203 is provided with tune through base 1
Save disk；The inner bottom surface of first drain pan 202 is provided with support 204；Clutch is provided with support 204；Matching is provided with clutch
Second rotating shaft 205；Second rotating shaft 205 is connected with first rotating shaft 203 by first bevel gear component 206；Rotating disk 207 has two,
Two rotating disks 207 are symmetricly set on protection cabinet 101 bottom surface；The surface of two rotating disk 207 1 is provided with screw；Screw and the second rotating shaft 205
Connected by second bevel gear component 209；Screw mandrel 208 is provided with screw；The one end of screw mandrel 208 extends to guarantor through protection cabinet 101
Protect inside cabinet 101.
Wherein, protect in the top of cabinet 101 and be provided with second locking mechanism 3；Second locking mechanism 3 includes the He of the second kelly 301
Guide groove 302；Second kelly 301 has two, and two second kellies 301 are symmetricly set on the surface of cabinet door 102 1；Two second kellies
301 one end are provided with the second through hole；Guide groove 302 has two, and two guide grooves 302 are symmetricly set on the protection inner top surface of cabinet 101；Two
Guide rod 303 is provided with guide groove 302；Spring 304 is arranged with guide rod 303；The one end of guide rod 303 is fixedly connected with drawstring 305；Drawstring
305 one end are wrapped in first rotating shaft 203 through the protection side wall of cabinet 101.
Wherein, the bottom surface of cabinet 101 is protected to be provided with air outlet mechanism 4；Air outlet mechanism 4 includes the second drain pan 402 and some first
Exhaust vent 401；Some first exhaust vent, 401 linear arrays are in protection cabinet 101 bottom surface；Humiture is provided with second drain pan 402
Inductor 403, power supply 404 and ventilating fan 405；Temperature and humidity sensor 403, power supply 404 and ventilating fan 405 are located at same circuit and returned
Lu Zhong；The surface of second drain pan 402 1 is provided with some second row stomatas 406；Ventilating fan 405 is located at some second row stomatas 406
Top.
Wherein, the surface of cabinet door 102 1 is provided with handle 107.
Wherein, bull stick 103 is U-shape structure；The cross section of bull stick 103 is square structure；Bull stick 103 slides and is located at positioning seat
Inside 104；Equal length of the distance between the two-arm of bull stick 103 with positioning seat 104.
Wherein, it is provided with circular hole net in second row stomata 406；The online Circularhole diameter of circular hole is 1mm.
Wherein, the surface of cabinet door 102 1 is provided with vibrating sensor and alarm.
One of the present embodiment has particular application as：After operating personnel verify identity by magnetic stripe reader 106, support 204
On clutch the second rotating shaft 205 is in free state；By rotating the adjustment disk in first rotating shaft 203, make screw mandrel 208 de-
From the first through hole on the first kelly 201, and guide rod 303 is set to depart from the second through hole on the second kelly 301；Hold with a firm grip again handle
Hand 107 pulls out cabinet door 102, bull stick 103 is slid into along the inner chamber of positioning seat 104 in U-shaped card slot 105；It is rotated further by cabinet door
102, make U-shaped card slot 105 drive bull stick 103 to be rotated in positioning seat 104, realize and open cabinet door 102；When there is non-operator examination
Figure open cabinet door 102 when, vibrating sensor senses that cabinet door 102 is vibrated, and now alarm sends alarm sounds, reach prevent it is non-
Operating personnel open the purpose of cabinet door operation equipment, are effectively protected the safety of equipment.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
At least one implementation of the present invention is contained in reference to specific features, structure, material or the feature that the embodiment or example describe
In example or example.In this manual, identical embodiment or example are not necessarily referring to the schematic representation of above-mentioned term.
Moreover, specific features, structure, material or the feature of description can close in any one or more embodiments or example
Suitable mode combines.
Present invention disclosed above preferred embodiment is only intended to help and illustrates the present invention.Preferred embodiment is not detailed
All details are described, it is only described embodiment also not limit the invention.Obviously, according to the content of this specification,
It can make many modifications and variations.This specification is chosen and specifically describes these embodiments, is to preferably explain the present invention
Principle and practical application so that skilled artisan can be best understood by and utilize the present invention.The present invention is only
Limited by claims and its four corner and equivalent.
Claims (7)
1. a kind of overvoltage monitoring device suppresses the protection device of cabinet, it is characterised in that including base (1)；
Protection cabinet (101) is provided with the top of the base (1)；
Wherein, it is provided with positioning seat (104) on the protection medial surface of cabinet (101) one；It is provided with the positioning seat (104) U-shaped
Neck (105)；
Wherein, protection cabinet (101) side opening is provided with cabinet door (102)；The surface of cabinet door (102) one is fixedly connected
There is bull stick (103)；The interspersed positioning seat (104) of bull stick (103) matching；
Wherein, the surface of cabinet door (102) one is provided with magnetic stripe reader (106)；
First locking mechanism (2) is provided with the base (1)；
Wherein, the first locking mechanism (2) includes the first kelly (201), the first drain pan (202), first rotating shaft (203) and turned
Disk (207)；First kelly (201) has two, and two first kellies (201) are symmetricly set on the surface of cabinet door (102) one
On；Two described first kelly (201) one end are provided with the first through hole；First drain pan (202) is arranged on protection cabinet (101)
Bottom；Described first rotating shaft (203) one end is provided with adjustment disk through base (1)；First drain pan (202) inner bottom surface is set
There is support (204)；Clutch is provided with the support (204)；Matching is provided with the second rotating shaft (205) in the clutch；
Second rotating shaft (205) is connected with first rotating shaft (203) by first bevel gear component (206)；The rotating disk (207) has two
Individual, two rotating disks (207) are symmetricly set on protection cabinet (101) bottom surface；Two surfaces of rotating disk (207) one are provided with screw；
The screw is connected with the second rotating shaft (205) by second bevel gear component (209)；Screw mandrel (208) is provided with the screw；Institute
State screw mandrel (208) one end and extend to protection cabinet (101) inside through protection cabinet (101).
2. a kind of overvoltage monitoring device according to claim 1 suppresses the protection device of cabinet, it is characterised in that the protection cabinet
(101) it is provided with second locking mechanism (3) in top；The second locking mechanism (3) includes the second kelly (301) and guide groove
(302)；Second kelly (301) has two, and two second kellies (301) are symmetricly set on the surface of cabinet door (102) one；
Two described second kelly (301) one end are provided with the second through hole；The guide groove (302) has two, and two guide grooves (302) are right
Title is arranged on protection cabinet (101) inner top surface；Guide rod (303) is provided with two guide grooves (302)；Covered on the guide rod (303)
Provided with spring (304)；Described guide rod (303) one end is fixedly connected with drawstring (305)；Described drawstring (305) one end is through protection
Cabinet (101) side wall is wrapped in first rotating shaft (203).
3. a kind of overvoltage monitoring device according to claim 1 suppresses the protection device of cabinet, it is characterised in that the protection cabinet
(101) bottom surface is provided with air outlet mechanism (4)；The air outlet mechanism (4) includes the second drain pan (402) and some first exhaust vents
(401)；The linear array of some first exhaust vents (401) is in protection cabinet (101) bottom surface；In second drain pan (402)
Provided with temperature and humidity sensor (403), power supply (404) and ventilating fan (405)；The temperature and humidity sensor (403), power supply (404)
It is located at ventilating fan (405) in same circuit loop；The surface of second drain pan (402) one is provided with some second row stomatas
(406)；The ventilating fan (405) is located above some second row stomatas (406).
4. a kind of overvoltage monitoring device according to claim 1 suppresses the protection device of cabinet, it is characterised in that the cabinet door
(102) one surfaces are provided with handle (107).
5. a kind of overvoltage monitoring device according to claim 1 suppresses the protection device of cabinet, it is characterised in that the bull stick
(103) it is U-shape structure；Bull stick (103) cross section is square structure；The bull stick (103) is slided and is located at positioning seat (104)
It is internal；Equal length of the distance between described bull stick (103) two-arm with positioning seat (104).
6. a kind of overvoltage monitoring device according to claim 3 suppresses the protection device of cabinet, it is characterised in that the second row
Circular hole net is provided with stomata (406)；The online Circularhole diameter of circular hole is 1mm.
7. a kind of overvoltage monitoring device according to claim 1 suppresses the protection device of cabinet, it is characterised in that the cabinet door
(102) one surfaces are provided with vibrating sensor and alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711156998.4A CN107834529B (en) | 2017-11-20 | 2017-11-20 | A kind of overvoltage monitoring device inhibits the protective device of cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711156998.4A CN107834529B (en) | 2017-11-20 | 2017-11-20 | A kind of overvoltage monitoring device inhibits the protective device of cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107834529A true CN107834529A (en) | 2018-03-23 |
| CN107834529B CN107834529B (en) | 2019-03-29 |
Family
ID=61653029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711156998.4A Active CN107834529B (en) | 2017-11-20 | 2017-11-20 | A kind of overvoltage monitoring device inhibits the protective device of cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107834529B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201821032U (en) * | 2010-10-26 | 2011-05-04 | 安徽首创电气科技有限公司 | Overvoltage suppression cabinet |
| US20110172815A1 (en) * | 2010-01-11 | 2011-07-14 | Jvm Co., Ltd. | Medicine management apparatus and method, bin for the apparatus, and cart for the apparatus |
| CN104157202A (en) * | 2014-07-07 | 2014-11-19 | 浙江工业大学之江学院 | Integrated mechanical principle mechanism display cabinet |
| CN104167722A (en) * | 2014-07-30 | 2014-11-26 | 安徽恒凯电力保护设备有限公司 | Overvoltage inhibition cabinet |
| CN204102439U (en) * | 2014-07-07 | 2015-01-14 | 浙江工业大学之江学院 | Integrated mechanical principle mechanism showcase |
| CN205657330U (en) * | 2016-04-13 | 2016-10-19 | 安徽富丰电气科技有限公司 | Overvoltage control restraines protection device of cabinet |
-
2017
- 2017-11-20 CN CN201711156998.4A patent/CN107834529B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110172815A1 (en) * | 2010-01-11 | 2011-07-14 | Jvm Co., Ltd. | Medicine management apparatus and method, bin for the apparatus, and cart for the apparatus |
| CN201821032U (en) * | 2010-10-26 | 2011-05-04 | 安徽首创电气科技有限公司 | Overvoltage suppression cabinet |
| CN104157202A (en) * | 2014-07-07 | 2014-11-19 | 浙江工业大学之江学院 | Integrated mechanical principle mechanism display cabinet |
| CN204102439U (en) * | 2014-07-07 | 2015-01-14 | 浙江工业大学之江学院 | Integrated mechanical principle mechanism showcase |
| CN104167722A (en) * | 2014-07-30 | 2014-11-26 | 安徽恒凯电力保护设备有限公司 | Overvoltage inhibition cabinet |
| CN205657330U (en) * | 2016-04-13 | 2016-10-19 | 安徽富丰电气科技有限公司 | Overvoltage control restraines protection device of cabinet |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107834529B (en) | 2019-03-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2697028C (en) | Server rack blanking panel and system | |
| US20060076841A1 (en) | System for ventilating a motor | |
| CN208467427U (en) | A kind of hardware material processing plant with refrigerating function | |
| CN107834529A (en) | A kind of overvoltage monitoring device suppresses the protection device of cabinet | |
| US10845065B1 (en) | Air fan with ice compartment | |
| CN104314845A (en) | Cellular thermal winter and summer axial flow fan | |
| CN205747395U (en) | Air conditioning exhausting panel | |
| CN212488925U (en) | Novel hair-dryer heating mechanism | |
| CN206451091U (en) | A kind of computer cabinet with heat abstractor | |
| CN207261313U (en) | A kind of concave fan cover | |
| CN207139939U (en) | Vanilla cutting knife | |
| CN208478863U (en) | A kind of generator multimachine joint control control cabinet | |
| CN207320631U (en) | A kind of the automatic of intelligent electric equipment crosses thermal cut-out case | |
| CN206306153U (en) | A kind of use for electronic products tears shell frock open | |
| CN206061343U (en) | A kind of heat dissipation type switch board of electric automatization control | |
| CN219475738U (en) | Electrical equipment power supply state collector | |
| CN203826171U (en) | Dry type transformer | |
| CN112605961A (en) | Tool cabinet | |
| CN108597822A (en) | A kind of three-phase self coupling power transformer | |
| CN216648988U (en) | Safe high-efficient switch board | |
| CN211213476U (en) | Cooling device | |
| CN218972861U (en) | Heating ventilation device with external detection structure | |
| CN207753346U (en) | A kind of intelligence fixed high-pressure cabinet | |
| CN209675712U (en) | A kind of large size low-voltage distribution cabinet | |
| CN208740781U (en) | A kind of Novel heating wall-breaking machine |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |