CN109494596A - A kind of anti-condensation non helping hand ventilation device of ring network cabinet - Google Patents
A kind of anti-condensation non helping hand ventilation device of ring network cabinet Download PDFInfo
- Publication number
- CN109494596A CN109494596A CN201910004233.1A CN201910004233A CN109494596A CN 109494596 A CN109494596 A CN 109494596A CN 201910004233 A CN201910004233 A CN 201910004233A CN 109494596 A CN109494596 A CN 109494596A
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- Prior art keywords
- tube
- connecting tube
- support
- connect
- support base
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Classifications
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- 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
-
- 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
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
Abstract
The invention discloses a kind of anti-condensation non helping hand ventilation devices of ring network cabinet, are related to ring network cabinet ventilation device technical field.Support base including being set to above cable duct and the cabinet body above support base, cabinet body is connect with support base, the upper surface of support base is equipped with multiple ventilation devices, ventilation device includes blast cap, connecting tube and support tube, the upper end of connecting tube is connect with blast cap, support tube is placed on outside connecting tube, support tube is connect with connecting tube, support tube and the through-hole of support base upper surface cooperate, limit plate is equipped between connecting tube and support tube, elastic component is equipped between limit plate and connecting tube, the barrel of support tube is equipped with mounting hole, and mounting hole and limit plate cooperate.Enter in cabinet body the invention can avoid the hot-air in cable duct and forms dew condensation phenomenon, avoid the problem that corroding and causing switch that cannot correctly act generation occur in switch in cabinet body, power supply reliability is improved, the erasing of ring network cabinet condensation is carried out without expending big manpower and material resources, reduces security risk.
Description
Technical field
The present invention relates to ring network cabinet ventilation device technical field, specially a kind of anti-condensation non helping hand ventilation dress of ring network cabinet
It sets.
Background technique
Ring network cabinet, i.e. ring network power supplying units RMU are that emerging, the faster smart grid distribution of development a kind of in recent years is set
It is standby；Ring network cabinet includes that the support base being set to above cable duct and the cabinet body above support base, cabinet body are connect with support base, electricity
Cable is coiled in cable duct, and is passed through support base and entered in ring network cabinet.
In winter in use, day and night temperature is big, since cable duct is in the space of a sealing, the air ratio in cable duct
In air in the cabinet body of ring network cabinet and outside air temperature is high, and the hot-air in cable duct can not circulate, can only be along electricity
Cable enters in the cabinet body of ring network cabinet, and hot-air is cooled in the cabinet body of ring network cabinet to liquefy and dew condensation phenomenon occur, and dew condensation phenomenon is easy
Cause the automatic mechanisms such as cabinet body inner breaker, on-load switch to corrode, and then cause switch that cannot correctly act, reduces and supply
Electric reliability.
In the prior art, it at the threading hole that cable passes through support base, is sealed using sealing ring, to prevent cable duct
In hot-air entered in the cabinet body of ring network cabinet along cable, still, sealing ring was being repaired by aging or electrical equipment
The reason of loosening sealing ring in journey, all can cause sealing effect bad, and a large amount of hot-air still enters readily along cable
Into cabinet body, the use of sealing ring cannot eliminate the influence of condensation bring, it is still necessary to increase manpower and material resources and carry out ring network cabinet condensation
Erasing, this measure exist very big security risk.
Summary of the invention
The present invention provides a kind of anti-condensation non helping hand ventilation dress of ring network cabinet aiming at deficiencies of the prior art
It sets, the present invention can be such that the hot-air in cable duct preferentially flows out from ventilation device, avoid in the prior art, the heat in cable duct
Air can only flow out cable duct from sealing ring, and the situation for causing the hot-air in cable duct to enter in cabinet body occurs, and realize
To the timely ventilation inside cable duct, the temperature in cable duct is reduced, the hot-air in cable duct is avoided to enter in cabinet body and shape
At dew condensation phenomenon, and then the automatic mechanisms such as cabinet body inner breaker, on-load switch is avoided to corrode, and causes switch cannot be just
The problem of positive motion is made improves power supply reliability, and the erasing of ring network cabinet condensation is carried out without expending big manpower and material resources, reduces
Security risk.
To achieve the above object, invention provides the following technical solutions:
A kind of anti-condensation non helping hand ventilation device of ring network cabinet including the support base being set to above cable duct and is set to support base
The cabinet body of top, cabinet body are connect with support base, and the support base is the shell structure of lower end surface opening, and the upper surface of support base is set
There are multiple ventilation devices, the upper surface of support base is equipped with through-hole and threading hole, and threading hole and the intracorporal cable of cabinet cooperate；
Ventilation device includes blast cap, connecting tube and support tube, and the upper end of connecting tube is connect with blast cap, and support tube is placed on connection
Pipe is outer, and support tube is connect with connecting tube, and support tube and through-hole cooperate, and multiple limit plates are equipped between connecting tube and support tube, more
A limit plate is uniformly distributed in same level along the circumferencial direction of connecting tube, and limit plate is set to the top of support base, more
One end that a limit plate is rotated clockwise each along the circumferencial direction of connecting tube is connect with connecting tube, between limit plate and connecting tube
Equipped with elastic component, one end of elastic component is connect with connecting tube, and elastic component is connect far from one end of connecting tube with limit plate, support tube
Barrel be equipped with multiple mounting holes, multiple mounting holes are uniformly distributed along the circumferencial direction of support tube, and mounting hole is matched with limit plate
It closes.
Further, the upper surface of the support tube and the lower end surface of support tube are equipped with connecting hole, connecting tube with connect
Interporal lacuna cooperation, the top of support tube are equipped with support ring, and support is located on the top of connecting tube, and support ring is connect with connecting tube,
The outer diameter of support ring is greater than the aperture of connecting hole.
Further, multiple auxiliary stopper plates are equipped between the connecting tube and support tube, multiple auxiliary stopper plates are same
It is uniformly distributed in one horizontal plane along the circumferencial direction of connecting tube, auxiliary stopper plate is set in the cavity of support base, auxiliary stopper
Plate is corresponding with limit plate, and multiple auxiliary stopper plates connect each along one end that the circumferencial direction of connecting tube rotates clockwise with connecting tube
It connects, auxiliary elastic member is equipped between auxiliary stopper plate and connecting tube, one end of auxiliary elastic member is connect with connecting tube, assistant spring
The one end of part far from connecting tube is connect with auxiliary stopper plate, and the barrel of support tube is equipped with multiple auxiliary mounting holes, multiple auxiliary peaces
Dress hole is uniformly distributed along the circumferencial direction of support tube, and auxiliary mounting hole and auxiliary stopper plate cooperate.
Further, extension tube is equipped in the connecting tube, the axis of extension tube is overlapped with the axis of connecting tube, extension tube
It is threadedly engaged with connecting tube, the upper end of extension tube is connect with blast cap.
Further, the extension tube is transparent pipe.
Further, the lower end of the connecting tube is equipped with diversion pipe, and the inner cavity of diversion pipe is divergent structure from top to bottom,
The upper end of diversion pipe is connect with connecting tube.
Further, the top of the extension tube be equipped with multiple supported holes, multiple supported holes along extension tube circumference side
To being uniformly distributed, the upper end of diversion pipe is equipped with multiple connecting rods, and multiple connecting rods are uniformly distributed along the circumferencial direction of diversion pipe, even
The length direction of extension bar and the axis of diversion pipe are parallel, and the lower end of connecting rod is connect with diversion pipe, and the upper end of connecting rod is equipped with branch
Strut, the length direction of support rod and the length direction of connecting rod are vertical, and one end of support rod is connect with connecting rod, and support rod is remote
One end and supported hole from connecting rod cooperate.
Further, sealing ring is equipped in the threading hole, sealing ring is connect with support base.
Compared with prior art, advantageous effect of the invention is:
1, the present invention can make the hot-air in cable duct excellent by the way that multiple ventilation devices are arranged in the upper surface of support base
Ventilation device outflow is first passed through, is avoided in the prior art, the hot-air in cable duct can only flow out cable duct from sealing ring, and
The situation for causing the hot-air in cable duct to enter in cabinet body occurs, and realizes to the timely ventilation inside cable duct, reduces cable
Temperature in ditch avoids the hot-air in cable duct from entering in cabinet body and form dew condensation phenomenon, so avoid cabinet body inner breaker,
The automatic mechanisms such as on-load switch corrode, and cause to switch the problem of cannot correctly acting, and it is reliable to improve power supply
Property, the erasing of ring network cabinet condensation is carried out without expending big manpower and material resources, reduces security risk.
Ventilation device, can be clockwise through rotation by setting blast cap, connecting tube, support tube, limit plate and elastic component
Connecting tube makes connecting tube that limit plate be driven to rotate together, until limit plate turns to the position opposite with the mounting hole of support tube,
Limit plate stretches under the action of the elastic member, to the direction far from connecting tube, so that so that limit plate is passed through mounting hole stretches out support
Cylinder prevents support tube from falling from the through-hole of support base to make limit plate gear on the upper surface of support base, and limit plate is realized
Supporting role to support tube, and then realize installation of the ventilation device on support base, so that ventilation device and support base are torn open
Dress is more convenient.
2, on the one hand the present invention can be rotated in support tube by setting connecting hole and support ring convenient for connecting tube, and
It is not in that the situation fallen from support tube when connecting tube rotates in support tube occurs, on the other hand, support ring can make
Connecting tube is supported in support tube, has shared the weight for the connecting tube that limit plate is born, and extends the service life of the present apparatus,
The number of replacement is reduced, and then reduces replacement cost.
3, the present invention can rotated clockwise connecting cylinder, make to limit by setting auxiliary stopper plate and auxiliary elastic member
While plate stretches out support tube, while auxiliary stopper plate also being made to stretch out support tube, makes auxiliary stopper board in the lower end of through-hole, from
And avoid because of extraneous severe natural situation, such as in the biggish situation of wind-force, ventilation device lifts winged situation by wind and sends out
It is raw, it is mounted so as to ventilation device on support base stronger.
4, the present invention is able to extend the runner of air by setting extension tube, improves pulling out to the hot-air in cable duct
Dynamic effect.
5, the present invention is by setting transparent pipe for extension tube, the air that can be convenient in sunlight heats extension tube, due to
Hot-air has the tendency that rising, stirs effect to the hot-air in cable trough so further increasing.
6, the present invention can reduce the hot-air in cable duct in the lower end of connecting tube because of turbulent flow by setting diversion pipe
Caused by power loss, so that the hot-air in cable duct is flowed out cable duct more glibly.
7, the present invention can be made the dismounting of diversion pipe and extension tube more convenient, be used by setting connecting rod and support rod
It is more flexible.
8, the present invention by setting sealing ring, can be improved the sealing effect to interior of the cabinet, with ventilation device to electricity
While cable ditch is aerated, the hot-air in cable duct is further prevented to enter in cabinet body by threading hole.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram one of the anti-condensation non helping hand ventilation device of ring network cabinet；
Fig. 2 is a kind of structural schematic diagram two of the anti-condensation non helping hand ventilation device of ring network cabinet；
Fig. 3 is the structural schematic diagram one of ventilation device；
Fig. 4 is the structural schematic diagram two of ventilation device；
Fig. 5 is the structural schematic diagram three of ventilation device；
Fig. 6 is the structural schematic diagram four of ventilation device.
In figure: 1- blast cap, 2- connecting tube, 3- limit plate, 4- elastic component, 5- auxiliary elastic member, 6- auxiliary stopper plate, 7- are led
Flow tube, 8- support tube, 9- support ring, 10- cabinet body, 11- support base, 12- threading hole, 13- connecting rod, 14- auxiliary mounting hole,
15- mounting hole, 16- support rod, 17- extension tube.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1:
A kind of anti-condensation non helping hand ventilation device of ring network cabinet, as depicted in figs. 1 and 2, including the branch being set to above cable duct
Support seat 11 and the cabinet body 10 above support base 11, cabinet body 10 are bolted with support base 11, and support base 11 is lower end
The shell structure of face opening, the upper surface of support base 11 are set there are four ventilation device, and four ventilation devices are respectively arranged on cabinet body 10
Edge, the upper surface of support base 11 sets there are four through-hole and a threading hole 12, the cable in threading hole 12 and cabinet body 10
Cooperation；
As seen in figures 3-6, ventilation device includes blast cap 1, connecting tube 2 and support tube 8；Specific: blast cap 1 is using unpowered
Blast cap；The upper end of connecting tube 2 is welded and fixed with blast cap 1, and support tube 8 is placed on outside connecting tube 2, the upper surface of support tube 8 and support
The lower end surface of cylinder 8 is equipped with connecting hole, connecting tube 2 and connecting hole clearance fit, and connecting tube 2 can rotate in connecting hole, props up
The top for supportting cylinder 8 is equipped with support ring 9, and support ring 9 is placed on the top of connecting tube 2, and support ring 9 is welded and fixed with connecting tube 2, support
The outer diameter of ring 9 is greater than the aperture of connecting hole；Support tube 8 fits with the through hole, and is equipped between connecting tube 2 and support tube 8 multiple
Limit plate 3, multiple limit plates 3 are uniformly distributed in same level along the circumferencial direction of connecting tube 2, and limit plate 3 is set to branch
The top of seat 11 is supportted, multiple limit plates 3 are welded each along one end that the circumferencial direction of connecting tube 2 rotates clockwise with connecting tube 2
It is fixed, elastic component 4 is equipped between limit plate 3 and connecting tube 2, specific: elastic component 4 uses compressed spring；One end of elastic component 4
It is welded and fixed with connecting tube 2, the one end of elastic component 4 far from connecting tube 2 is welded and fixed with limit plate 3, and the barrel of support tube 8 is equipped with
Multiple mounting holes 15, multiple mounting holes 15 are uniformly distributed along the circumferencial direction of support tube 8, and mounting hole 15 and limit plate 3 cooperate.
Multiple auxiliary stopper plates 6 are equipped between connecting tube 2 and support tube 8, multiple auxiliary stopper plates 6 are in same level
It is uniformly distributed along the circumferencial direction of connecting tube 2, auxiliary stopper plate 6 is set in the cavity of support base 11, auxiliary stopper plate 6 and limit
Position plate 3 is corresponding, and specific: auxiliary stopper: 6 is identical with the quantity of limit plate 3, auxiliary stopper plate 6 set on limit plate 3 just under
Side；Multiple auxiliary stopper plates 6 are welded and fixed each along one end that the circumferencial direction of connecting tube 2 rotates clockwise with connecting tube 2, auxiliary
It helps and is equipped with auxiliary elastic member 5 between limit plate 6 and connecting tube 2, specific: assistant spring: 5 also use compressed spring, assist bullet
Property part 5 one end be welded and fixed with connecting tube 2, the one end of auxiliary elastic member 5 far from connecting tube 2 and the welding of auxiliary stopper plate 6 are solid
Fixed, the barrel of support tube 8 is equipped with multiple auxiliary mounting holes 14, and multiple auxiliary mounting holes 14 are equal along the circumferencial direction of support tube 8
Even distribution, auxiliary mounting hole 14 and auxiliary stopper plate 6 cooperate.
In use, being inserted into the support tube 8 of ventilation device in the through-hole of support base 11, connecting tube 2 is then rotated clockwise,
Connecting tube 2 drives limit plate 3 and auxiliary stopper plate 6 to rotate together, when limit plate 3 goes to support tube 8 far from one end of connecting tube 2
The position of mounting hole 15, auxiliary stopper plate 6 gone to far from one end of connecting tube 2 support tube 8 auxiliary mounting hole 14 position
When, limit plate 3 flexes outward under the active force of elastic component 4, and auxiliary stopper plate 6 is outside under the active force of auxiliary elastic member 5
Stretching, extension makes limit plate 3 stretch out mounting hole 15, auxiliary stopper plate 6 far from one end of connecting tube 2 and stretches out far from one end of connecting tube 2
Auxiliary stopper hole 14, at this point, the connecting tube 2 that stops operating, limit plate 3 just can be supported on the upper surface of support base 11, prevent from supporting
Pipe 8 falls, and auxiliary stopper plate 6 is stuck in the lower section of the upper surface of support base 11, prevents ventilation device from being thrown, and also will just divulge information dress
It sets and has been mounted on support base 11, make firmly installing for ventilation device and support base 11.After installing, higher temperature in cable duct
Air successively pass through support base 11, connecting tube 2 and blast cap 1 and reach the external world, so that the hot-air in cable duct effectively be conveyed
To the external world, to avoid the hot-air in cable duct from entering in cabinet body 10, to effectively prevent the dew condensation phenomenon in cabinet body 10
It generates.
Embodiment 2:
The present embodiment 2 is same as Example 1, the difference is that, as seen in figures 3-6, the present embodiment 2 is in the connecting tube
Extension tube 17 is equipped in 2, specific: extension tube 17 is transparent pipe, and the axis of extension tube 17 is overlapped with the axis of connecting tube 2, prolongs
Long tube 17 is threadedly engaged with connecting tube 2, and upper end and the blast cap 1 of extension tube 17 are welded and fixed.By turning extension tube 17, make to extend
Pipe 17 back-outs connecting tube 2, to make the total length of connecting tube 2 and extension tube 17 increase, to extend the runner of air.
Further, the lower end of the connecting tube 2 is equipped with diversion pipe 7, and the inner cavity of diversion pipe 7 is flaring knot from top to bottom
The upper end of structure, diversion pipe 7 is connect with connecting tube 2, specific: the top of extension tube 17 is equipped with multiple supported holes, multiple supported holes
It is uniformly distributed along the circumferencial direction of extension tube 17, the upper end of diversion pipe 7 is equipped with multiple connecting rods 13, and multiple connecting rods 13 are along leading
The circumferencial direction of flow tube 7 is uniformly distributed, and the length direction of connecting rod 13 is parallel with the axis of diversion pipe 7, the lower end of connecting rod 13
It is welded and fixed with diversion pipe 7, the upper end of connecting rod 13 is equipped with support rod 16, the length direction of support rod 16 and the length of connecting rod 13
Degree direction is vertical, and one end and the connecting rod 13 of support rod 16 are welded and fixed, support rod 16 one end and support far from connecting rod 13
Hole cooperation.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (8)
1. a kind of anti-condensation non helping hand ventilation device of ring network cabinet including the support base being set to above cable duct and is set on support base
The cabinet body of side, cabinet body are connect with support base, which is characterized in that the support base is the shell structure of lower end surface opening, support base
Upper surface be equipped with multiple ventilation devices, the upper surface of support base is equipped with through-hole and threading hole, threading hole and the intracorporal cable of cabinet
Cooperation；
Ventilation device includes blast cap, connecting tube and support tube, and the upper end of connecting tube is connect with blast cap, and support tube is placed on connecting tube
Outside, support tube is connect with connecting tube, and support tube and through-hole cooperate, and multiple limit plates are equipped between connecting tube and support tube, multiple
Limit plate is uniformly distributed in same level along the circumferencial direction of connecting tube, and limit plate is set to the top of support base, multiple
One end that limit plate is rotated clockwise each along the circumferencial direction of connecting tube is connect with connecting tube, is set between limit plate and connecting tube
One end of flexible part, elastic component is connect with connecting tube, and elastic component is connect far from one end of connecting tube with limit plate, support tube
Barrel is equipped with multiple mounting holes, and multiple mounting holes are uniformly distributed along the circumferencial direction of support tube, and mounting hole and limit plate cooperate.
2. a kind of anti-condensation non helping hand ventilation device of ring network cabinet as described in claim 1, which is characterized in that the support tube
Upper surface and the lower end surface of support tube are equipped with connecting hole, connecting tube and connecting hole clearance fit, and the top of support tube is equipped with branch
Pushing out ring, support are located on the top of connecting tube, and support ring is connect with connecting tube, and the outer diameter of support ring is greater than the aperture of connecting hole.
3. a kind of anti-condensation non helping hand ventilation device of ring network cabinet as claimed in claim 2, which is characterized in that the connecting tube and
Multiple auxiliary stopper plates are equipped between support tube, multiple auxiliary stopper plates are in same level along the circumferencial direction of connecting tube
It is uniformly distributed, auxiliary stopper plate is set in the cavity of support base, and auxiliary stopper plate is corresponding with limit plate, and multiple auxiliary stopper plates are equal
It connect, is equipped between auxiliary stopper plate and connecting tube auxiliary with connecting tube along one end that the circumferencial direction of connecting tube rotates clockwise
Elastic component is helped, one end of auxiliary elastic member is connect with connecting tube, the one end of auxiliary elastic member far from connecting tube and auxiliary stopper plate
The barrel of connection, support tube is equipped with multiple auxiliary mounting holes, and multiple auxiliary mounting holes uniformly divide along the circumferencial direction of support tube
Cloth, auxiliary mounting hole and auxiliary stopper plate cooperate.
4. a kind of anti-condensation non helping hand ventilation device of ring network cabinet as claimed in claim 3, which is characterized in that in the connecting tube
Equipped with extension tube, the axis of extension tube is overlapped with the axis of connecting tube, and extension tube is threadedly engaged with connecting tube, the upper end of extension tube
It is connect with blast cap.
5. a kind of anti-condensation non helping hand ventilation device of ring network cabinet as claimed in claim 4, which is characterized in that the extension tube is
Transparent pipe.
6. a kind of anti-condensation non helping hand ventilation device of ring network cabinet as claimed in claim 5, which is characterized in that the connecting tube
Lower end is equipped with diversion pipe, and the inner cavity of diversion pipe is divergent structure from top to bottom, and the upper end of diversion pipe is connect with connecting tube.
7. a kind of anti-condensation non helping hand ventilation device of ring network cabinet as claimed in claim 6, which is characterized in that the extension tube
Top is equipped with multiple supported holes, and multiple supported holes are uniformly distributed along the circumferencial direction of extension tube, and the upper end of diversion pipe is equipped with more
A connecting rod, multiple connecting rods are uniformly distributed along the circumferencial direction of diversion pipe, the length direction of connecting rod and the axis of diversion pipe
In parallel, the lower end of connecting rod is connect with diversion pipe, and the upper end of connecting rod is equipped with support rod, the length direction and connecting rod of support rod
Length direction it is vertical, one end of support rod is connect with connecting rod, and the one end of support rod far from connecting rod and supported hole cooperate.
8. a kind of anti-condensation non helping hand ventilation device of ring network cabinet as described in claim 1, which is characterized in that in the threading hole
Equipped with sealing ring, sealing ring is connect with support base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910004233.1A CN109494596B (en) | 2019-01-03 | 2019-01-03 | Condensation-preventing non-power-assisted ventilation device of ring main unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910004233.1A CN109494596B (en) | 2019-01-03 | 2019-01-03 | Condensation-preventing non-power-assisted ventilation device of ring main unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109494596A true CN109494596A (en) | 2019-03-19 |
| CN109494596B CN109494596B (en) | 2020-09-01 |
Family
ID=65713798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910004233.1A Active CN109494596B (en) | 2019-01-03 | 2019-01-03 | Condensation-preventing non-power-assisted ventilation device of ring main unit |
Country Status (1)
| Country | Link |
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| CN (1) | CN109494596B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110947145A (en) * | 2019-12-10 | 2020-04-03 | 国网青海省电力公司海北供电公司 | Unpowered cable trench dehumidification fire extinguishing apparatus |
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| Publication number | Publication date |
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| CN109494596B (en) | 2020-09-01 |
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