CN208708859U - A kind of whole ventilating ventilation and heat knapsack - Google Patents
A kind of whole ventilating ventilation and heat knapsack Download PDFInfo
- Publication number
- CN208708859U CN208708859U CN201820905684.3U CN201820905684U CN208708859U CN 208708859 U CN208708859 U CN 208708859U CN 201820905684 U CN201820905684 U CN 201820905684U CN 208708859 U CN208708859 U CN 208708859U
- Authority
- CN
- China
- Prior art keywords
- knapsack
- backboard
- heat
- coolant liquid
- circulation
- 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
Abstract
The utility model relates to a kind of whole ventilating ventilation and heat knapsacks, the knapsack is provided with airflow channel in knapsack backboard, circulating fan and water-cooling system, circulation chamber is provided in knapsack backboard, coolant liquid is filled in circulation chamber, circulation chamber is connect with circulation fluid and circulating pump, so that coolant liquid is continuously circulated flowing in circulation chamber, coolant liquid takes away the heat absorption that human body back generates, the coolant liquid with certain temperature is recycled on the radiator at the top of knapsack backboard after absorbing heat, these heats are dissipated to the coolant liquid to form low temperature in radiator, it is re-introduced into and recycles next time, the circulation of coolant liquid is realized with this, the heat that human body back generates is taken away in time by the coolant liquid with efficient cooling performance, obtain better heat dissipation effect.
Description
Technical field
The utility model relates to knapsack technical field, specially a kind of whole ventilating ventilation and heat knapsack.
Background technique
Knapsack be to travel perhaps outwork and a kind of packet for preparing be go on a long journey, do things, go sight-seeing or throws oneself into it is big oneself
When enjoying sunshine, rain and dew in so, by articles for daily use or it can think that anything of band at one's side loads in order to the side of carrying
Just packet.
Although there are many present tourism knapsack type, still there is disadvantage in tourism, for example, heat dissipation problem, long
Time carries knapsack and back is easily caused the generation of the case where prickly heat or eczema occur.In order to solve the heat dissipation problem of knapsack,
A large amount of work has been done by relevant manufacturers and scientific research institution, while also having a large amount of patent document to describe and improving knapsack heat dissipation effect
The technical solution of energy is provided with compression for example, CN207202440U discloses a kind of knapsack with refrigerating function on knapsack
Machine and radiator fan, by the effect for improving heat dissipation from refrigerating function of knapsack；CN207168113U discloses a kind of hydrology and surveys
Knapsack is drawn in detection, and radiator fan is provided in knapsack, realizes the active heat removal of knapsack；CN107752328A discloses one
Kind has the back pad knapsack of fan, and cooling pad and fan are provided in knapsack, improves the heat sinking function of knapsack.The above skill
The heat dissipation effect for the knapsack that art scheme improves to a certain extent, but there is also have following technical problem: heat dissipation effect is also not
It is very well, heat radiation function is unable to control, and the ventilating air permeability in actual use is simultaneously bad, therefore, it is also desirable to which developing one kind has
The knapsack of whole ventilating result of ventilating heat dissipation, to fill a hole in the market.
Utility model content
The purpose of this utility model is to provide a kind of knapsacks with whole ventilating result of ventilating heat dissipation, to solve above-mentioned back
The problem of being proposed in scape technology.
To achieve the above object, the utility model provides the following technical solutions:
A kind of whole ventilating ventilation and heat knapsack, the knapsack include knapsack ontology, knapsack backboard, knapsack bottom plate, the back
Packet ontology is arranged on the knapsack backboard, and the knapsack bottom plate is arranged in the bottom of the knapsack ontology and carries on the back with the knapsack
Plate connects, and is provided with knapsack straps on the knapsack backboard；Several strip bulges are provided on the knapsack backboard, it is described several
Strip bulge extends to the top of the knapsack backboard from the bottom of the knapsack backboard；It is respectively provided with inside each strip bulge
Have the first diversion cavity, the knapsack backboard is internally provided with several second diversion cavities, each first diversion cavity with one
The connection of two diversion cavities, first diversion cavity is connected to form a circulation chamber with second diversion cavity, on the knapsack backboard
With several circulation chambers；The bottom of knapsack backboard is provided with circulatory pool, several circulation bottom of chamber portion connects with circulatory pool
It is logical, circulating pump is provided in the circulatory pool；It is all provided in the circulatory pool, the first diversion cavity, the second diversion cavity and circulation chamber
It is equipped with coolant liquid；Radiator is provided at the top of the knapsack backboard, the radiator is contacted with the circulation chamber；It is described
Power supply, control circuit, control system are provided on knapsack bottom plate, the power supply is connected by the control circuit and the circulating pump
It connects, the control system is connect with the control circuit.
Preferably, temperature sensor is provided on the knapsack backboard, the temperature sensor and the control system connect
It connects.
Preferably, two adjacent strip bulges form an airflow channel, the knapsack backboard on the knapsack backboard
It is upper that there are multiple airflow channels.
Preferably, the bottom of the airflow channel is provided with air blowing fan, and pumping is provided at the top of the airflow channel
Fan；The air blowing fan and extraction fan are connect with the power supply, control circuit and control system.
Preferably, be provided with shutoff valve in the circulation chamber, the shutoff valve uses solenoid valve, the solenoid valve with it is described
Control circuit connection；The control system uses programmable control system.
Preferably, the knapsack backboard is made of flexible material, and the knapsack backboard has fitting human body back shape
Curved profile；Graphene heat-conducting layer is provided on knapsack backboard.
Preferably, graphene radiating fin is provided in the radiator；The power supply is rechargeable battery, the electricity
Source is additionally provided with external charge socket.
Compared with the existing technology, the utility model has the advantages that
1, the utility model is provided with several strip bulges on knapsack backboard, and adjacent strip bulge constitutes a gas
Circulation road, strip bulge are made of flexible material, the contact area of knapsack backboard and human body back can be reduced, in conjunction with gas
The use of circulation road may be implemented knapsack backboard and contact with half attaching type of human body back, and human body back and knapsack backboard it
Between formed air-flow flowing channel, realize knapsack in use whole ventilating ventilation, even if human body back perspire when,
Knapsack backboard will not be adhered to human body back, thus have preferable comfort.
2, the utility model is provided with air blowing fan in the bottom of airflow channel, is provided with and takes out at the top of airflow channel
Air fan further increases the speed and efficiency of air-flow flowing by the setting of these fans, so that in use,
Entire back is in the state with airflow circulating, the heat that human body back generates is taken away in time, simultaneously as gas
The presence for flowing circulation, can also promote the rapid evaporation of back sweat, so that human body is had refrigerant feeling, further improve and use
Impression.
3, the utility model is further provided with water-cooling system, and circulation chamber is provided in knapsack backboard, is filled out in circulation chamber
Filled with coolant liquid, circulation chamber is connect with circulation fluid and circulating pump, so that coolant liquid is continuously circulated flowing, coolant liquid in circulation chamber
The heat absorption that human body back generates is taken away, the coolant liquid with certain temperature is recycled to positioned at knapsack backboard after absorbing heat
On the radiator at top, these heats are dissipated to the coolant liquid to form low temperature in radiator, is re-introduced into next
Secondary circulation realizes the circulation of coolant liquid with this, the heat for generating human body back by the coolant liquid with efficient cooling performance
Amount is taken away in time, obtains better heat dissipation effect.
4, the utility model is additionally provided with programmable control system and temperature sensor, temperature sensor real-time monitoring back
The temperature for wrapping knapsack backboard and human body back contact site in use determines cooling performance according to temperature height.In people
When body back temperature is less high, by airflow channel natural airflow ringing and may be implemented air ventilation heat dissipation effect
Fruit, control system not will start fan and water-cooling system at this time, to avoid the waste of electric energy；When the temperature rises, natural gas
Stream flows the demand of not competent ventilation and heat, at this point, the temperature value that control system is detected according to temperature sensor, starting
Extraction fan and air blowing fan accelerate the airflow rate of airflow channel, the effect of stronger ventilation heat dissipation by external force；If temperature
Sensor detects that temperature continues to increase, and the work of heat dissipation can not be competent at by fan, at this point, control system control loop pumps
Starting, so that coolant liquid circulation is got up in circulation chamber, by the efficient heat transfer effect of coolant liquid, the heat that human body back is generated
Amount is taken away, and realizes that maximized ventilation and heat is efficient.The utility model can according to need, and realize the ventilation and heat of terraced distribution
Effect, can satisfy cannot use intensity and usage scenario.
Detailed description of the invention
Fig. 1 is the overall structure side schematic view of the utility model；
Fig. 2 is the integrally-built knapsack backboard back schematic diagram of the utility model.
In figure: 1- knapsack ontology, 2- knapsack backboard, 3- knapsack bottom plate, 4- knapsack straps, 5- strip bulge, 6- first are led
Flow chamber, the second diversion cavity of 7-, 8- circulation chamber, 9- circulatory pool, 10- circulating pump, 11- radiator, 12- air blowing fan, 13- pumping
Fan, 14- airflow channel.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
In the description of the present invention, it should be understood that term " longitudinal direction ", " transverse direction ", "upper", "lower", " preceding ",
The orientation or positional relationship of the instructions such as " rear ", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" be based on
Orientation or positional relationship shown in the drawings is merely for convenience of description the utility model, rather than the dress of indication or suggestion meaning
It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to the utility model
Limitation.
The utility model provides a kind of technical solution referring to FIG. 1-2: a kind of whole ventilating ventilation and heat knapsack, the back
Packet includes knapsack ontology 1, knapsack backboard 2, knapsack bottom plate 3, and the knapsack ontology 1 is arranged on the knapsack backboard 2, the back
Packet bottom plate 3 is arranged in the bottom of the knapsack ontology 1 and connect with the knapsack backboard 2, is provided with back on the knapsack backboard 2
Packet harness 4；It is provided with several strip bulges 5 on the knapsack backboard 2, several strip bulges 5 are from the knapsack backboard 2
Bottom extends to the top of the knapsack backboard 2；The first diversion cavity 6, the knapsack are provided with inside each strip bulge 5
Backboard is internally provided with several second diversion cavities 7, each first diversion cavity 6 is connected to second diversion cavity 7, and one
One diversion cavity 6 is connected to second diversion cavity 7 forms a circulation chamber 8, has several circulation chambers on the knapsack backboard 2
8；The bottom of knapsack backboard is provided with circulatory pool 9, several 8 bottoms of circulation chamber are connected to circulatory pool 9, the circulatory pool
Circulating pump 10 is provided in 9；It is provided in the circulatory pool 9, the first diversion cavity 6, the second diversion cavity 7 and circulation chamber 8 cold
But liquid；The top of the knapsack backboard 2 is provided with radiator 11, and the radiator 11 is contacted with the circulation chamber 8；It is described
Power supply, control circuit, control system are provided on knapsack bottom plate 2, the power supply passes through the control circuit and the circulating pump
10 connections, the control system are connect with the control circuit.
In order to detect human body back temperature to determine the size of heat dissipation, temperature sensing is provided on the knapsack backboard
Device, the temperature sensor are connect with the control system, the temperature data pair that control system is detected according to temperature sensor
The opening and closing of fan and water-cooling heat radiating system is controlled.
In order to realize the natural flowing of air-flow, it is logical to form an air-flow for two adjacent strip bulges on the knapsack backboard
Road 14 has multiple airflow channels on the knapsack backboard；As needed, curved shape can be set into strip bulge, the curve
Extend from the bottom of knapsack backboard to the top outer curve of knapsack backboard, the strip bulge on knapsack backboard is along knapsack backboard
Middle line axisymmetricly two sides are distributed, can will be under human body back so that be formed by airflow channel also curved distribution
The thermal current in portion guides to be conducted to human body back upper outside, improves radiating efficiency to a certain extent.
In order to increase airflow circulating efficiency, the bottom of the airflow channel 14 is provided with air blowing fan 12, and the air-flow is logical
The top in road 14 is provided with extraction fan 13；The air blowing fan 12 and extraction fan 13 with the power supply, control circuit and
Control system connection.
According to radiating requirements, shutoff valve is provided in the circulation chamber, the shutoff valve uses solenoid valve, the solenoid valve
It is connect with the control circuit；The control system uses programmable control system；Control system can be according to the needs of heat dissipation
Determine that the circulation chamber quantity for opening circulation can only open the solenoid valve in a part of circulation chamber, make when radiating requirements are lower
This part of circulation chamber starts work of radiating, and other circulation chamber break-ofves avoid the waste of the energy；Radiating requirements compared with
When big, greater number of circulation chamber circulation is opened, so that more circulation chamber starts heat dissipation circulation.Therefore, control system can be with
The circulation chamber quantity for starting heat dissipation circulation is determined according to practical radiating requirements, it is energy saving, it improves and uses the time.
In order to improve comfort, the knapsack backboard is made of flexible material, and the knapsack backboard has fitting
The curved profile of human body back shape；In order to improve the heat transfer effectiveness of knapsack backboard, graphene is provided on knapsack backboard and is led
Thermosphere, graphene is with higher thermally conductive and heat dissipation effect, and the thermally conductive and hot biography of knapsack backboard can be improved using the material
Pass effect.
In order to improve the radiating efficiency of radiator, graphene radiating fin is provided in the radiator；According to need
Wanting the power supply is rechargeable battery, and the power supply is additionally provided with external charge socket, and the rechargeable battery of the utility model is adopted
It is designed with changeable type, when outgoing, muti-piece reserve battery can be carried, be replaced, charged to the battery changed,
Improve the convenience used.
The working principle of the utility model are as follows: temperature sensor real-time monitoring knapsack knapsack backboard and people in use
The temperature at body back contact position determines cooling performance according to temperature height.When human body back temperature is less high, by air-flow
The natural airflow ringing in channel and may be implemented air ventilation heat dissipation effect, at this time control system not will start fan and
Water-cooling system, to avoid the waste of electric energy；When the temperature rises, natural air-flow flows the need of not competent ventilation and heat
Ask, at this point, the temperature value that control system is detected according to temperature sensor, start extraction fan and air blowing fan, by external force plus
The airflow rate of fast airflow channel, the effect of stronger ventilation heat dissipation；If temperature sensor detects that temperature continues to increase, by
Fan can not be competent at the work of heat dissipation, at this point, control system control loop pump startup, so that coolant liquid recycles in circulation chamber
Come, by the efficient heat transfer effect of coolant liquid, the heat that human body back generates is taken away, realizes that maximized ventilation and heat is high
Effect.
The utility model is provided with several strip bulges on knapsack backboard, and adjacent strip bulge constitutes an air-flow
Channel, strip bulge are made of flexible material, the contact area of knapsack backboard and human body back can be reduced, in conjunction with air-flow
The use in channel may be implemented knapsack backboard and contact with half attaching type of human body back, and between human body back and knapsack backboard
The channel for forming air-flow flowing realizes the whole ventilating ventilation of knapsack in use, even if when human body back is perspired, back
Packet backboard will not be adhered to human body back, thus have preferable comfort.
The utility model is provided with air blowing fan in the bottom of airflow channel, is provided with pumping wind at the top of airflow channel
Fan further increases the speed and efficiency of air-flow flowing by the setting of these fans, so that in use, entirely
Back is in the state with airflow circulating, the heat that human body back generates is taken away in time, simultaneously as air-flow follows
The presence of ring can also promote the rapid evaporation of back sweat, so that human body is had refrigerant feeling, further improve use feeling
By.
The utility model is further provided with coolant liquid circulating water cooling system, and circulation chamber, ring are provided in knapsack backboard
It flows and is filled with coolant liquid in chamber, circulation chamber is connect with circulation fluid and circulating pump, so that coolant liquid is continuously circulated stream in circulation chamber
Dynamic, coolant liquid takes away the heat absorption that human body back generates, and the coolant liquid with certain temperature recycles in place after absorbing heat
On radiator at the top of the knapsack backboard, these heats are dissipated to the coolant liquid to form low temperature in radiator, again
It enters and recycles next time, the circulation of coolant liquid is realized with this, carry on the back human body by the coolant liquid with efficient cooling performance
The heat that portion generates is taken away in time, obtains better heat dissipation effect.
The utility model is additionally provided with programmable control system and temperature sensor, temperature sensor real-time monitoring knapsack
The temperature of knapsack backboard and human body back contact site in use determines cooling performance according to temperature height.In human body
When back temperature is less high, by airflow channel natural airflow ringing and may be implemented air ventilation heat dissipation effect,
Control system not will start fan and water-cooling system at this time, to avoid the waste of electric energy；When the temperature rises, natural air-flow stream
The demand of dynamic not competent ventilation and heat, at this point, the temperature value that control system is detected according to temperature sensor, starting pumping
Fan and air blowing fan accelerate the airflow rate of airflow channel, the effect of stronger ventilation heat dissipation by external force；If temperature sensing
Device detects that temperature continues to increase, and the work of heat dissipation can not be competent at by fan, at this point, control system control loop pump opens
It is dynamic, so that coolant liquid circulation is got up in circulation chamber, by the efficient heat transfer effect of coolant liquid, the heat that human body back is generated
It takes away, realizes that maximized ventilation and heat is efficient.The utility model can according to need, and realize the ventilation and heat effect of terraced distribution
Fruit, can satisfy cannot use intensity and usage scenario.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (7)
1. a kind of whole ventilating ventilation and heat knapsack, the knapsack includes knapsack ontology, knapsack backboard, knapsack bottom plate, the knapsack
Ontology be arranged on the knapsack backboard, the knapsack bottom plate be arranged in the bottom of the knapsack ontology and with the knapsack backboard
It connects, is provided with knapsack straps on the knapsack backboard；It is characterized in that, it is convex to be provided with several bar shapeds on the knapsack backboard
It rises, several strip bulges extend to the top of the knapsack backboard from the bottom of the knapsack backboard；Each bar shaped is convex
It plays inside and is provided with the first diversion cavity, the knapsack backboard is internally provided with several second diversion cavities, each first water conservancy diversion
Chamber is connected to second diversion cavity, and first diversion cavity is connected to form a circulation chamber, institute with second diversion cavity
Stating has several circulation chambers on knapsack backboard；The bottom of knapsack backboard is provided with circulatory pool, several circulation bottom of chamber portion
It is connected to circulatory pool, is provided with circulating pump in the circulatory pool；The circulatory pool, the first diversion cavity, the second diversion cavity and
Coolant liquid is provided in circulation chamber；Radiator, the radiator and the ring are provided at the top of the knapsack backboard
Flow chamber contact；Power supply, control circuit, control system are provided on the knapsack bottom plate, the power supply passes through the control circuit
It is connect with the circulating pump, the control system is connect with the control circuit.
2. whole ventilating ventilation and heat knapsack according to claim 1, which is characterized in that be provided with temperature on the knapsack backboard
Sensor is spent, the temperature sensor is connect with the control system.
3. whole ventilating ventilation and heat knapsack according to claim 2, which is characterized in that on the knapsack backboard two it is adjacent
Strip bulge form an airflow channel, there are on the knapsack backboard multiple airflow channels.
4. whole ventilating ventilation and heat knapsack according to claim 3, which is characterized in that the bottom of the airflow channel is arranged
There is air blowing fan, is provided with extraction fan at the top of the airflow channel；The air blowing fan and extraction fan with the electricity
Source, control circuit are connected with control system.
5. whole ventilating ventilation and heat knapsack according to claim 4, which is characterized in that be provided with and shut off in the circulation chamber
Valve, the shutoff valve use solenoid valve, and the solenoid valve is connect with the control circuit；The control system uses programmable control
System processed.
6. whole ventilating ventilation and heat knapsack according to claim 5, which is characterized in that the knapsack backboard is using flexible material
Material is made, and the knapsack backboard has the curved profile of fitting human body back shape；It is thermally conductive that graphene is provided on knapsack backboard
Layer.
7. whole ventilating ventilation and heat knapsack according to claim 6, which is characterized in that be provided with stone in the radiator
Black alkene radiating fin；The power supply is rechargeable battery, and the power supply is additionally provided with external charge socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820905684.3U CN208708859U (en) | 2018-06-12 | 2018-06-12 | A kind of whole ventilating ventilation and heat knapsack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820905684.3U CN208708859U (en) | 2018-06-12 | 2018-06-12 | A kind of whole ventilating ventilation and heat knapsack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208708859U true CN208708859U (en) | 2019-04-09 |
Family
ID=65971426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820905684.3U Active CN208708859U (en) | 2018-06-12 | 2018-06-12 | A kind of whole ventilating ventilation and heat knapsack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208708859U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111700368A (en) * | 2020-07-09 | 2020-09-25 | 邓艳丽 | Novel self-heat-dissipation schoolbag |
| CN112471737A (en) * | 2020-12-17 | 2021-03-12 | 牛永耀 | Convenient back heat dissipation sports backpack |
-
2018
- 2018-06-12 CN CN201820905684.3U patent/CN208708859U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111700368A (en) * | 2020-07-09 | 2020-09-25 | 邓艳丽 | Novel self-heat-dissipation schoolbag |
| CN112471737A (en) * | 2020-12-17 | 2021-03-12 | 牛永耀 | Convenient back heat dissipation sports backpack |
| CN112471737B (en) * | 2020-12-17 | 2022-05-24 | 亨铨实业(深圳)有限公司 | Convenient back heat dissipation sports backpack |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201591136U (en) | Water-circulating semiconductor air-conditioning clothing | |
| CN102709618B (en) | Microchannel cooling temperature equalizing system for ventilation of lithium battery | |
| CN207265190U (en) | Heat-exchanger rig, power battery pack and the electric car of battery pack | |
| CN208708859U (en) | A kind of whole ventilating ventilation and heat knapsack | |
| CN203505634U (en) | Waterproof, breathable and intelligent wearing object with human body air-conditioning function | |
| CN107613735B (en) | A kind of electric power box of energy-saving cool-down | |
| CN108091800A (en) | Battery case and its cooling system | |
| CN106723890A (en) | A kind of portable intelligent liquid cooling knapsack | |
| CN111436700A (en) | Split type cooling and dehumidifying device and protective clothing using same | |
| CN105361317A (en) | Air conditioner cap | |
| CN206180062U (en) | Heat dissipation battery | |
| CN207818102U (en) | A kind of LED display of high efficiency and heat radiation | |
| CN111588110A (en) | Portable refrigeration clothes | |
| CN101435611B (en) | Solar air conditioner sunshade umbrella | |
| CN206413788U (en) | A kind of wearable human body cooling-down system | |
| CN206145980U (en) | Photovoltaic directly -heated type heat pump water heating system | |
| CN105146805A (en) | Cold-warm air-conditioning garment | |
| CN210869955U (en) | Cooling vest | |
| CN212787498U (en) | Temperature control equipment and temperature control clothes | |
| JP3224532U (en) | Intelligent cooling suit | |
| CN208370084U (en) | A kind of power module | |
| CN203907855U (en) | Water-cooling-type refrigeration fan | |
| CN106723773A (en) | A kind of parasols based on semiconductor chilling plate | |
| CN106196374A (en) | A kind of can the air conditioner fan of body-worn | |
| CN208387923U (en) | A kind of air-ventilating garments cooling pipe system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |