CN207852777U - A kind of ventilation device and apply its rail vehicle accumulator box - Google Patents
A kind of ventilation device and apply its rail vehicle accumulator box Download PDFInfo
- Publication number
- CN207852777U CN207852777U CN201821265284.7U CN201821265284U CN207852777U CN 207852777 U CN207852777 U CN 207852777U CN 201821265284 U CN201821265284 U CN 201821265284U CN 207852777 U CN207852777 U CN 207852777U
- Authority
- CN
- China
- Prior art keywords
- side wall
- inner cover
- ventilation
- secondary battery
- ventilator hood
- 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.)
- Active
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Battery Mounting, Suspending (AREA)
Abstract
The utility model discloses a kind of ventilation device and apply its rail vehicle accumulator box, including ventilation inner cover and cover ventilation inner cover on ventilator hood, ventilation inner cover include the bottom wall and the first side wall being wholely set, be provided with air inlet on bottom wall；There is opening, ventilation inner cover to be connected to ventilator hood by the opening at the top of the first side wall；The top of the first side wall is provided with guide plate along its periphery, and guide plate is equipped with fixing bracket；Ventilator hood includes the roof being wholely set and second sidewall, the bottom of second sidewall has air outlet, fixing bracket is fixedly connected with the roof of ventilator hood, guide plate extends to ventilation inner cover direction, Stilt layer is formed between ventilation inner cover and ventilator hood, so that air-flow flows through the air outlet outflow through second sidewall bottom after Stilt layer.The utility model can quickly and effectively reach secondary battery jar ventilation and heat and exclude the mesh of toxic gas, prevent extraneous air to be back in accumulator box body, to meet requirement of the secondary battery jar to degree of protection.
Description
Technical field
The utility model is related to a kind of ventilation device and its rail vehicle accumulator box is applied, belongs to rail vehicle technology
Field.
Background technology
Accumulator group used for rail vehicle is that vehicle bottom is lifted in the form of babinet.Emergency accumulator provides tightly for train
Traction, illumination and other controllers in the case of urgency provide Emergency Power.Due to current track vehicle battery with nickel chromium triangle and
Based on plumbic acid material, to ensure equipment and traffic safety, the heat that is generated in accumulator box in vehicle operation and there is poison gas
Body needs discharge in time.Therefore, effective secondary battery jar Design of ventilation is always the direction of industry research and development.Currently, often
The venting practice seen mostly is to use porous plate before and after the secondary battery jar on door-plate, and not only heat dissipation effect is bad, can also cause case
Body degree of protection declines.Another common approach is to increase ventilation support on the outside of accumulator box, and increase filter screen, air outlet
Deng, program increase babinet inner air and outer air convection current, but it is complicated, it should not promote and use.Once there is filter screen blocking, case
Body can not radiate, and influence service lifetime of accumulator.If there is modular construction loosening, safety accident is easily caused.
Invention content
Technical problem to be solved in the utility model is：Overcome the deficiencies of the prior art and provide a kind of ventilation device and
Using its rail vehicle accumulator box, the ventilating problem for solving secondary battery jar.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is a kind of ventilation device, including
Divulge information inner cover, including the bottom wall and the first side wall that are wholely set, the first side wall along bottom wall circumferentially, it is described
Bottom wall with secondary battery jar for being fixedly connected, wherein air inlet is provided on bottom wall, for going out with the babinet on secondary battery jar
Air port is connected to；There is opening, ventilation inner cover to be connected to ventilator hood by the opening at the top of the first side wall；The first side wall
Top its periphery is provided with guide plate, the guide plate is equipped with fixing bracket, and the fixing bracket is used for and ventilator hood connects
It connects；
The ventilator hood on ventilation inner cover is covered, ventilator hood includes the roof being wholely set and second sidewall, and described the
Circumferentially along roof, the bottom of the second sidewall has air outlet, the top of the fixing bracket and ventilator hood to two side walls
Wall is fixedly connected, also, the guide plate on the first side wall extends to ventilation inner cover direction, divulges information and is formed between inner cover and ventilator hood
Stilt layer, so that air-flow flows through the air outlet outflow through second sidewall bottom after Stilt layer.
Further, the bottom wall, the first side wall and guide plate are formed by stainless steel plate one bending.
Further, the first side wall along bottom wall circumferentially, and upwardly extended along the periphery of bottom wall, the first side wall is whole
For the tubular construction of upper and lower opening.
Further, the first mounting hole is provided on the bottom wall, the first mounting hole is used for and is arranged in secondary battery jar
The second mounting hole riveting.
Further, it is provided with third mounting hole on the fixing bracket, for being connect with ventilator hood, the ventilator hood
Roof is equipped with the 4th mounting hole, and third mounting hole and the 4th mounting hole pass through rivet.
Further, the roof and second sidewall are formed by stainless steel plate one bending.
The utility model additionally provides a kind of rail vehicle accumulator box, including secondary battery jar, secondary battery jar up to
Ventilation device described in one is installed less, box air outlet, the ventilation are provided on the upper sealing plate of the secondary battery jar
Device is mounted on the top plate of secondary battery jar, and the air inlet on the ventilation device bottom wall is made to be connected to the air outlet.
After using above-mentioned technical proposal, the utility model has the advantages that：
1）The fixing bracket of the utility model is mounted on guide plate, and fixing bracket is on the one hand for the roof with ventilator hood
It is fixedly connected, on the other hand, for forming Stilt layer between ventilator hood and ventilation inner cover, is convenient for the opening from the first side wall
The air-flow for locating discharge enters the space surrounded by roof and second sidewall under the guiding of guide plate by Stilt layer, i.e. ventilation top
Cover is internal, finally the air outlet discharge through second sidewall bottom.
2）The first side wall of the ventilation inner cover of the utility model is equipped with to ventilator hood and extends internally guide plate, avoids gas
Stream is directly discharged from the air outlet of second sidewall bottom after the discharge of the opening at the top of the first side wall, is also prevented from external sky
In gas or moisture backflow to accumulator box body, the degree of protection for being arranged to add to this ventilation device of guide plate so that ensureing
The degree of protection of ventilation device is not reduced under conditions of ventilation.
3）The ventilation inner cover and ventilator hood of the utility model are all made of integrally formed bending structure, to ensure that structure is strong
Spend and meet the requirement of surface smoothness.
4）Heat in accumulator box body can be excluded quickly with toxic gas, be prevented by this rail vehicle accumulator box
Extraneous air is back in accumulator box body, to meet requirement of the secondary battery jar to degree of protection.
Description of the drawings
Fig. 1 is the dimensional structure diagram of the ventilation inner cover of the utility model；
Fig. 2 is the front view of the ventilation inner cover of the utility model；
Fig. 3 is the dimensional structure diagram of the ventilator hood of the utility model；
Fig. 4 is the upward view of the ventilator hood of the utility model；
Fig. 5 is the overall structure diagram of the ventilation device of the utility model；
Fig. 6 is the internal structure schematic diagram of the ventilation inner cover and ventilator hood assembly of the utility model；
Air-flow flows to schematic diagram after Fig. 7 assembles for the ventilation inner cover of the utility model with ventilator hood；
Fig. 8 is the dimensional structure diagram of the rail vehicle accumulator box of the utility model（Wherein ventilation device is explosion
Structural representation）.
Specific implementation mode
In order to make the content of the utility model be easier to be clearly understood, below according to specific embodiment and combine attached
Figure, is described in further detail the utility model.
Unless not defining, the technical term or scientific term used herein is should be in the utility model fields
The ordinary meaning that personage with general technical ability is understood.It is used in the utility model patent specification and claims
" first ", " second " and similar word are not offered as any sequence, quantity or importance, and are used only to distinguish different
Component part.Equally, the similar word such as "one" or " one " does not indicate that quantity limits yet, but indicates there is at least one
It is a.
As shown in Figures 1 to 7, a kind of ventilation device 3, including ventilation inner cover 1 and cover ventilation inner cover 1 on ventilator hood
2。
Divulge information inner cover 1, including the bottom wall 1-1 and the first side wall 1-2 that are wholely set, and the first side wall 1-2 is along bottom wall 1-1
Circumferentially, the bottom wall 1-1 with secondary battery jar 4 for being fixedly connected, wherein is provided with air inlet 1-3 on bottom wall 1-1, uses
It is connected in the box air outlet 4-1 on secondary battery jar 4, so that the air-flow in secondary battery jar 4 is discharged from air outlet 4-1,
Enter ventilation inner cover 1 through air inlet 1-3 again.The top of the first side wall 1-2 has opening, this opening is ventilation inner cover 1
Air outlet, ventilation inner cover 1 be connected to ventilator hood 2 by the opening, ventilation inner cover 1 in air-flow using the first side wall 1-
The opening at 2 tops enters ventilator hood 2.The top of the first side wall 1-2 is provided with the guide plate extended to ventilator hood 2 along its periphery
1-6, the guide plate 1-6 are equipped with fixing bracket 1-4, the fixing bracket 1-4 for being connect with ventilator hood 2.
Ventilator hood 2 includes the roof 2-1 being wholely set and second sidewall 2-2, and the second sidewall 2-2 is along roof 2-1
Circumferentially, the bottom of the second sidewall 2-2 has air outlet 2-3.The roof of the fixing bracket 1-4 and ventilator hood 2
2-1 is fixedly connected, to form Stilt layer, also, the guide plate 1- on the first side wall 1-2 between ventilation inner cover 1 and ventilator hood 2
6 extend to 1 direction of ventilation inner cover, and air-flow is imported in ventilator hood 2.Into the air-flow of ventilator hood 2, to flow through Stilt layer laggard
Enter ventilator hood 1, and the air outlet 2-3 outflows through the bottoms second sidewall 2-2.
The heat and toxic gas generated in vehicle operation and the course of work, in secondary battery jar 4 reaches a certain level
After concentration, risen by the air outlet 4-1 on secondary battery jar 4, through air inlet 1-3 flow ventilations inner cover 1, in guide plate 1-6
Water conservancy diversion under, enter in ventilator hood 2 by way of Stilt layer, finally through air outlet 2-3 be discharged.Air-flow enters the side of ventilation inner cover 1
To the change that 180 ° have occurred with the final direction being discharged through logical interior overhead guard 2, reaching secondary battery jar ventilation and heat and exclusion has
The purpose of poisonous gas, while not reducing degree of protection.
The first side wall 1-2 of the ventilation inner cover 1 of the utility model is equipped with to ventilator hood 2 and extends internally guide plate 1-6,
Avoid air-flow after the discharge of the opening at the top of the first side wall 1-2, directly from the air outlet 2-3 rows of the bottoms second sidewall 2-2
Go out, be also prevented from extraneous air or moisture backflow to secondary battery jar 4, guide plate 1-6's is arranged to add to this ventilation device 3
Degree of protection so that do not reduce the degree of protection of ventilation device under conditions of guarantee is divulged information.Fixing bracket 1-4 is mounted on guide plate
On 1-6, fixing bracket 1-4 with the roof 2-1 of ventilator hood 2 on the one hand for being fixedly connected, on the other hand, for being pushed up in ventilation
Stilt layer is formed between cover 2 and ventilation inner cover 1, convenient for the air-flow being discharged from the opening of the first side wall 1-2, guide plate 1-6's
It is oriented to the lower Stilt layer that passes through and enters the space surrounded by roof and second sidewall, i.e., inside ventilator hood 2, finally through second sidewall
The air outlet 2-3 discharges of the bottoms 2-2.
The utility model can quickly and effectively reach secondary battery jar ventilation and heat and exclude the mesh of toxic gas, simultaneously
Labyrinth passage is formed between ventilation inner cover and ventilator hood, 180 ° of change airflow directions prevent extraneous air to be back to electric power storage
In pond babinet 4, to meet requirement of the secondary battery jar 4 to degree of protection.
To ensure structural strength and meeting the requirement of surface smoothness, bottom wall 1-1, the first side wall 1-2 and guide plate 1-6 are preferred
It is formed using stainless steel plate one bending.In the present embodiment, the first side wall 1-2 along bottom wall 1-1 circumferentially, and along bottom wall
The periphery of 1-1 upwardly extends, the tubular construction of the first side wall 1-2 generally upper and lower openings, and guide plate 1-6 is from the top of the first side wall
Edge extends to 2 direction of ventilator hood.As shown in Fig. 2, the first side wall 1-2 is vertical with bottom wall 1-1, guide plate 1-6 and the first side wall
1-2 is vertical, and the longitudinal section of bottom wall 1-1, the first side wall 1-2 and guide plate 1-6 are stepped.Inner cover 1 of divulging information uses this bending knot
Structure is to change the direction of air-flow, the degree of protection of entire ventilation device 3 is improved by adjusting the direction of air-flow.It is being rolled over
When curved, the bottom wall 1-1 of ventilation inner cover 1 and the first side wall 1-2 is made to carry out 90 ° of bendings, guide plate 1-6 carries out 90 ° with the first side wall 1-2
Bending.Vertically disposed structure is only a kind of excellent successively by bottom wall 1-1, the first side wall 1-2 and guide plate 1-6 used by the present embodiment
Scheme is selected, in practice can be as needed, adjust the angle of bending.
Similarly, to ensure structural strength and meeting the requirement of surface smoothness, roof 2-1 and second sidewall 2-2 are preferred
It is formed using stainless steel plate one bending.When carrying out bending, ensure that roof 2-1 and second sidewall 2-2 carries out 90 ° of bendings, and
And be arranged in air outlet 2-3 on the partition board of bottom of second sidewall 2-2, change gas when air-flow discharge ventilator hood 2
Direction is flowed, 3 degree of protection of entire ventilation device is improved.
Bottom wall 1-1's is preferably shaped to regular polygon, and the first side wall 1-2 is the positive multi-panel column upwardly extended from bottom wall edge
Shape.Roof 2-1's is preferably shaped to regular polygon, and second sidewall 2-2 is the positive multi-panel cylindricality extended downwardly from ceiling edge.This
In embodiment, the outer profile of bottom wall 1-1 is for for octagon, the shape of air inlet 1-3 thereon and the shape phase of bottom wall
Together, also it is octagon.The outer profile of the first side wall 1-2 is positive octahedral cylindricality.The outer profile of the roof 2-1 of ventilator hood 2
For octagon, second sidewall 2-2 is that outer profile is positive octahedral cylindricality.
The first mounting hole 1-5 is provided on the bottom wall 1-1, the first mounting hole 1-5 is used for and setting is in secondary battery jar 4
On the second mounting hole 4-2 riveting, it is easy for installation securely.
Third mounting hole 1-7 is provided on the fixing bracket 1-4, for being connect with ventilator hood 2, the ventilator hood 2
Roof 2-1 pass through rivet equipped with the 4th mounting hole 2-4, third mounting hole 1-7 and the 4th mounting hole 2-4.
Alternatively, the bottom of the second side 2-2 can be uncovered structure, entire open as air outlet
2-3.Alternatively, the bottom of second sidewall 2-2 is connected with partition board, and air outlet 2-3 is opened up on partition board.This implementation
Example is shown in Fig. 6 by taking second of alternative as an example.
On the basis of above-mentioned ventilation device 3, a kind of rail vehicle accumulator box, as shown in figure 8, including secondary battery jar
4, the ventilation device 3 described in one is at least installed on secondary battery jar 4, is provided on the upper sealing plate of the secondary battery jar 4
Box air outlet 4-1, the ventilation device 3 is mounted on the top plate of secondary battery jar 4, and is made on the ventilation device bottom wall
Air inlet 1-3 is connected to the air outlet 4-1.The upper sealing plate of secondary battery jar 4 is equipped with multiple box air outlet 4-1, shape
Size and the air inlet hole of ventilation inner cover coincide.It is respectively mounted a ventilation device 3 on each box air outlet 4-1.This implementation
Example is respectively mounted a ventilation for opening four box air outlet 4-1 on secondary battery jar 4 on each box air outlet 4-1
Device 3.
This rail vehicle accumulator box can quickly exclude the heat in secondary battery jar 4 with toxic gas, by logical
Labyrinth passage is formed between wind inner cover and ventilator hood, 180 ° of change airflow directions prevent extraneous air to be back to accumulator
In babinet 4, to meet requirement of the secondary battery jar 4 to degree of protection.
By the machine-shaping of monoblock stainless steel plate, bending forms again respectively for ventilation inner cover 1 and ventilator hood 2, and uses rivet riveting
Connect the assembling for completing entire ventilation device 3.The upper sealing plate of secondary battery jar 4 is set there are four box air outlet 4-1, shape size with
The air inlet 1-3 of inner cover 1 of divulging information coincide, and the edge of box air outlet 4-1 is equipped with the second mounting hole 4-2, is used for and ventilation device 3
Riveting, completes the installation of entire ventilation device.In vehicle operation and the course of work, the heat that generates in secondary battery jar 4 and
Toxic gas reaches a certain level and after concentration, can ascend into ventilation inner cover 1 by box air outlet 4-1, and along logical
Secondary battery jar 4 is discharged downwards in wind inner cover 1 and the direction of 90 ° of bendings of ventilator hood 2, divulges information to reach secondary battery jar 4
Heat dissipation and the purpose for excluding toxic gas.
Particular embodiments described above, the technical issues of the utility model is solved, technical solution and advantageous effect into
It has gone further description, it should be understood that the foregoing is merely specific embodiment of the utility model, and has not had to
In limitation the utility model, within the spirit and principle of the utility model, any modification, equivalent substitution and improvements done
Deng should be included within the scope of protection of this utility model.
Claims (7)
1. a kind of ventilation device（3）, it is characterised in that：Including
Ventilation inner cover（1）, including the bottom wall that is wholely set（1-1）And the first side wall（1-2）, the first side wall（1-2）The bottom of along
Wall（1-1）Circumferentially, the bottom wall（1-1）For with secondary battery jar（4）It is fixedly connected, wherein bottom wall（1-1）On be provided with
Air inlet（1-3）, it is used for and secondary battery jar（4）On box air outlet（4-1）Connection；The first side wall（1-2）Top
Portion has opening, inner cover of divulging information（1）Pass through the opening and ventilator hood（2）Connection；The top of the first side wall is arranged along its periphery
There is guide plate（1-6）, the guide plate（1-6）It is equipped with fixing bracket（1-4）, the fixing bracket（1-4）For with ventilator hood
（2）Connection；
It covers in ventilation inner cover（1）On ventilator hood（2）, ventilator hood（2）Including the roof being wholely set（2-1）And the second side
Wall（2-2）, the second sidewall（2-2）Along roof（2-1）Circumferentially, the second sidewall（2-2）Bottom have outlet air
Mouthful（2-3）, the fixing bracket（1-4）With ventilator hood（2）Roof（2-1）It is fixedly connected, also, leading on the first side wall
Plate to ventilation inner cover（1）Direction extends, inner cover of divulging information（1）With ventilator hood（2）Between form Stilt layer so that air-flow flows through frame
Through second sidewall after dead level（2-2）The air outlet of bottom（2-3）Outflow.
2. ventilation device according to claim 1（3）, it is characterised in that：The bottom wall（1-1）, the first side wall（1-2）And
Guide plate（1-6）It is formed by stainless steel plate one bending.
3. ventilation device according to claim 2（3）, it is characterised in that：The first side wall（1-2）Along bottom wall（1-1）
Circumferentially, and along bottom wall（1-1）Periphery upwardly extend, the first side wall（1-2）The generally tubular construction of upper and lower opening.
4. ventilation device according to claim 3（3）, it is characterised in that：The bottom wall（1-1）On be provided with the first fixation
Hole（1-5）, the first mounting hole（1-5）For be arranged in secondary battery jar（4）On the second mounting hole（4-2）Riveting.
5. ventilation device according to claim 1（3）, it is characterised in that：The fixing bracket（1-4）On to be provided with third solid
Determine hole（1-7）, it is used for and ventilator hood（2）Connection, the ventilator hood（2）Roof（2-1）It is equipped with the 4th mounting hole（2-
4）, third mounting hole（1-7）With the 4th mounting hole（2-4）Pass through rivet.
6. ventilation device according to claim 1（3）, it is characterised in that：The roof（2-1）And second sidewall（2-2）
It is formed by stainless steel plate one bending.
7. a kind of rail vehicle accumulator box, it is characterised in that：Including secondary battery jar（4）, secondary battery jar（4）On at least pacify
Fill one such as claim 1 to 6 any one of them ventilation device（3）, in the secondary battery jar（4）Upper sealing plate on be arranged
There is box air outlet（4-1）, the ventilation device（3）Mounted on secondary battery jar（4）Top plate on, and make the ventilation device
Air inlet on bottom wall（1-3）With the air outlet（4-1）Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821265284.7U CN207852777U (en) | 2018-08-07 | 2018-08-07 | A kind of ventilation device and apply its rail vehicle accumulator box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821265284.7U CN207852777U (en) | 2018-08-07 | 2018-08-07 | A kind of ventilation device and apply its rail vehicle accumulator box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207852777U true CN207852777U (en) | 2018-09-11 |
Family
ID=63424430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821265284.7U Active CN207852777U (en) | 2018-08-07 | 2018-08-07 | A kind of ventilation device and apply its rail vehicle accumulator box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207852777U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111836493A (en) * | 2020-07-24 | 2020-10-27 | Oppo广东移动通信有限公司 | Electronic device |
-
2018
- 2018-08-07 CN CN201821265284.7U patent/CN207852777U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111836493A (en) * | 2020-07-24 | 2020-10-27 | Oppo广东移动通信有限公司 | Electronic device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106939618A (en) | A kind of underground pipe gallery ground ventilation mouthful and blower fan hoisting port and escaping exit | |
| CN201696234U (en) | Engine room cover of horizontal axis wind generating set | |
| CN207852777U (en) | A kind of ventilation device and apply its rail vehicle accumulator box | |
| CN105858412A (en) | Noise-reduction and ventilation structure for lift car of elevator | |
| CN205736880U (en) | Vehicle | |
| CN204020889U (en) | Equipment water proof and dust proof aeration structure under a kind of rail vehicle | |
| CN202785179U (en) | Elevator with ventilating structure | |
| CN205976711U (en) | Air film building exhaust system | |
| CN105525683B (en) | A kind of separate type steelframe glass architecture | |
| CN212119338U (en) | High-efficient biological deodorization device | |
| CN205688578U (en) | Separate type steelframe glass architecture | |
| CN209676678U (en) | Assembled intelligent type chamber type charging station with natural air cooled structure | |
| CN110469937B (en) | Ventilation method and air draft fan for construction process of ro-ro passenger ship | |
| CN217983476U (en) | Ventilation structure of storage battery system | |
| CN210164105U (en) | Assembled building respiratory double-layer curtain wall | |
| CN206329411U (en) | A kind of EGR valve adapter | |
| CN208236754U (en) | A kind of noise reducing type blast cap with uniform flow-guiding structure | |
| CN215922185U (en) | Urban rail vehicle waste discharge device | |
| CN216624399U (en) | Ventilation unit for battery box | |
| CN106288122B (en) | The air exchange system of island energy storage device | |
| CN205831142U (en) | It is easy to the intelligent mask of cleaning | |
| CN110004976A (en) | A kind of subway underground station ventilating shaft and fire-fighting evacuation staircase build structure jointly | |
| CN206469417U (en) | Air cleaning facility and new blower fan for tracheal tube | |
| CN206116896U (en) | Marinely meet electric protective box on bank | |
| CN110409976A (en) | Herringbone blinds rainproof ventilation window |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Ventilation unit and use its rail vehicle battery box Effective date of registration: 20200310 Granted publication date: 20180911 Pledgee: XIN YU GROUP Co.,Ltd. Pledgor: NEW UNITED RAIL TRANSIT TECHNOLOGY Co.,Ltd. Registration number: Y2020980000582 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20211119 Granted publication date: 20180911 Pledgee: NEW UNITED GROUP Co.,Ltd. Pledgor: NEW UNITED RAIL TRANSIT TECHNOLOGY Co.,Ltd. Registration number: Y2020980000582 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |