CN202565648U - Cooling system used in machine room - Google Patents
Cooling system used in machine room Download PDFInfo
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- CN202565648U CN202565648U CN2012201486634U CN201220148663U CN202565648U CN 202565648 U CN202565648 U CN 202565648U CN 2012201486634 U CN2012201486634 U CN 2012201486634U CN 201220148663 U CN201220148663 U CN 201220148663U CN 202565648 U CN202565648 U CN 202565648U
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Abstract
The utility model discloses a cooling system used in a machine room. The machine room comprises at least one equipment cabinet and multiple computers in the equipment cabinet. The cooling system comprises an air inlet pipeline, which is disposed at the upper part of the equipment cabinet and has at least one air inlet; an air outlet pipeline, which is disposed at the upper part of the equipment cabinet and has at least one air outlet, wherein the equipment cabinet is located between the adjacent air inlet and air outlet; and multiple cooling parts which are separately arranged in the equipment cabinet to cool computer CPUs. The cooling system used in a machine room is good in cooling effect and low in energy consumption. Main key computer CPUs can be cooled independently, enhancing the stability and the working efficiency of computer operation and achieving good practicability.
Description
Technical field
The utility model relates to field of refrigeration, especially relates to a kind of cooling system that is used for machine room.
Background technology
At present, 60% to 70% power consumption is in electric power facility and machine room cooling in the machine room, and wherein the cost of machine room cooling is up to 30%, and typically being used to cool off the interior system for computer of machine room generally has two kinds: a kind of is air cooling system; Another kind is a liquid-cooling system.Wherein air cooling system is difficult to every computer an amount of cold air is provided, and the air-supply of general air cooling system meeting raised flooring, causes the floor to raise, thereby has increased cost and reduced available space; Liquid-cooling system is because the pipeline of building is relatively more expensive, complicated, and the inconvenience of liquid coolant water conservancy diversion, does not therefore have practicality widely; The more important thing is, above-mentioned dual mode can not realize to specific main heating element for example CPU suitable coolant is provided, thereby do not reach desirable refrigeration.
The utility model content
The utility model is intended to solve at least one of technical problem that exists in the prior art.
For this reason, a purpose of the utility model is to propose a kind of cooling system that is used for machine room, said cooling system good refrigeration effect, and energy consumption is low, and can cool off separately the main heating element.
The cooling system that is used for machine room according to the utility model; Said machine room comprises at least one rack and a plurality of computers that are located in the said rack; Said cooling system comprises: intake stack, said intake stack are located at the top of said rack and have at least one air inlet; Wind pipe, said wind pipe are located at the top of said rack and have at least one air outlet, and wherein said rack is between adjacent air inlet and air outlet; With a plurality of cooling pieces, said a plurality of cooling pieces are located at respectively in the said rack to cool off said computer CPU.
According to the cooling system that is used for machine room of the utility model,, avoid the air-flow short circuit through hot and cold passageway is separated; Improve the refrigerating efficiency of cooling system, practiced thrift electric energy, reduced use cost; Through cooling piece is set computer CPU is cooled off separately simultaneously; Realized emphasis cooling, effectively reduced the temperature of computer CPU, guaranteed that computer CPU is in the suitable operating temperature range computer main heating parts; Reduce the spoilage of computer CPU, and then further reduce use cost.Wherein, above-mentioned cold passageway refers to the space under the said air inlet, i.e. air intake passageway, and hot passageway refers to the space under the said air outlet, i.e. the air-out passageway.
In addition; The cooling system that is used for machine room according to the utility model; Because intake stack and wind pipe all are located at the top of rack, therefore compare with the set-up mode of traditional cooling air channel raised flooring, save the installation cooling air channel and raised required space, floor and cost; Thereby the space in the machine room can more reasonably be utilized, and space capable of using avoids waste.
In addition, the cooling system that is used for machine room according to the utility model also has following additional technical feature:
Fit in the back surface of said air inlet and said cabinet top wall; The front surface of said air outlet and said cabinet top wall is fitted.Thus, prevent that cold wind from flowing out from the slit between air inlet, air outlet and the cabinet top wall, causes the waste of coolant.
Be respectively equipped with seal between the roof of said air inlet and said air outlet and said rack.Thus, can be better with sealing between cabinet top wall and air inlet, the air outlet.
Said cooling piece is a heat pipe, and said heat pipe comprises: body; Be located at the evaporation section and the condensation segment at said body two ends respectively, wherein said evaporation section contacts with said CPU, and said condensation segment stretches out from the rear wall of said rack.Through heat pipe is set, thereby can the main focus such as the computer CPU of computer be cooled off.
Said cooling system also comprises: a plurality of division boards, said division board are located on the rear wall of said rack, are formed with a plurality of through holes on the said division board, and the condensation segment of wherein said heat pipe stretches out through said through hole.Thus, can further cold passageway and hot passageway be isolated, prevent the air-flow short circuit.
And lower edge roughly concordant with the roof of said rack, the upper edge of said division board has predetermined altitude with respect to ground.
The bottom of each said rack is equipped with at least one fan that is used to make cooling air to flow to said wind pipe from said intake stack.Thus, can promote and accelerate the speed that air flows in the air intake passageway in the air-out passageway, improve cooling effect.
Said cooling system also comprises: the bottom that at least one temperature sensor, said at least one temperature sensor are located at said rack rear wall respectively accordingly is used to measure the temperature of said rack rear wall bottom space; At least one valve, said at least one valve is located at the air inlet place of said intake stack respectively accordingly; At least one valve regulated device; Said at least one valve regulated device links to each other with said temperature sensor with said valve respectively accordingly, wherein said valve regulated device be configured to Temperature numerical, the said valve opening of adjusting according to said temperature sensor measurement size so that the temperature stabilization of the bottom space of said rack rear wall at predefined first temperature value.
Said first temperature value is 23 ℃-25 ℃.
Advantageously, said first temperature value is approximately 24 ℃.
Thus; Air themperature in the temperature sensor measurement air intake passageway; When the temperature that records surpassed first temperature value for example above predefined 24 ℃, the aperture of valve regulated device meeting by-pass valve control made its aperture become big; Thereby making more cold air get into the air intake passageway cools off the computer in the rack; Guarantee that the air themperature in the air intake passageway remains on about 24 ℃ constantly, offer good working environment of computer, prevent that some parts of computer are overheated and cause the low even damage of efficient.
The cooling system that is used for machine room according to the utility model; Have like six following advantages: 1) use the air coolant; With compare as the cooling system of coolant with liquid, avoided complicated with expensive conveyance conduit, overcome the inconvenient shortcoming of liquid cooling medium water conservancy diversion; 2) intake stack and wind pipe are located at the top of rack, compare with the pipe arrangement mode of raised flooring, have made full use of the space of machine room, avoid raising the floor, increase cost; 3) through with cold passageway and hot passageway separately and with the two isolation, avoid the air-flow short circuit, thereby improved refrigerating efficiency; 4) cooling piece carries out the emphasis cooling to the main focus computer CPU of computer, and the cold wind in the air intake passageway cools off computer miscellaneous part and rack, thereby can improve the cooling effectiveness of cooling system, and then cuts down the consumption of energy; 5) cooling system scalable and guarantee that the air themperature in the air intake passageway is in the suitable scope, and can regulate refrigerating capacity according to instantaneous refrigeration duty; 6) no matter the heat dissipation capacity of computer is much, can guarantee that all temperature constant in the air intake passageway is to eliminate all focuses through the aperture of control valve.
Additional aspect of the utility model and advantage part in the following description provide, and part will become obviously from the following description, or recognize through the practice of the utility model.
Description of drawings
Above-mentioned and/or additional aspect of the utility model and advantage obviously with are easily understood becoming the description of embodiment from combining figs, wherein:
Fig. 1 is the structural representation according to the cooling system that is used for machine room of the utility model embodiment.
Embodiment
Describe the embodiment of the utility model below in detail, the example of said embodiment is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Be exemplary through the embodiment that is described with reference to the drawings below, only be used to explain the utility model, and can not be interpreted as restriction the utility model.
In the description of the utility model; It will be appreciated that; The orientation of indications such as term " " center ", " vertically ", " laterally ", " on ", D score, " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward " or position relation are for based on orientation shown in the drawings or position relation; only be to describe with simplifying for the ease of describing the utility model; rather than the device or the element of indication or hint indication must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction to the utility model.In addition, term " first ", " second " only are used to describe purpose, and can not be interpreted as indication or hint relative importance.
In the description of the utility model, need to prove that only if clear and definite regulation and qualification are arranged in addition, term " installation ", " linking to each other ", " connection " should be done broad understanding, for example, can be to be fixedly connected, also can be to removably connect, or connect integratedly; Can be mechanical connection, also can be to be electrically connected; Can be directly to link to each other, also can link to each other indirectly through intermediary, can be the connection of two element internals.For those of ordinary skill in the art, can concrete condition understand the concrete implication of above-mentioned term in the utility model.In addition, in the description of the utility model, except as otherwise noted, the implication of " a plurality of " is two or more.
The cooling system of describing according to the utility model embodiment with reference to figure 1 below that is used for machine room 100.Cooling system 100 is located in the machine room, is used for the computer in the machine room is cooled off, and guarantees the work of computer normal and stable.Wherein machine room comprises at least one rack 200 and a plurality of computers that are located in the rack 200.
According to the cooling system that is used for machine room 100 of the utility model embodiment, comprise intake stack 1, wind pipe 2 and a plurality of cooling piece 3.
A plurality of cooling pieces 3 are located at respectively in the rack 200 with cooling computer CPU300.Thus through computer main heating parts are cooled off separately, thereby improve cooling effect, guaranteed the computer steady operation.
Wherein, need to prove that " preceding " in above-mentioned refers to the end of rack 200 near the user, for example in Fig. 1, " preceding " refers to the side away from computer CPU 300; " back " in above-mentioned refers to the end of rack 200 away from the user, and for example in Fig. 1, " back " refers to the side near computer CPU 300.Wherein in Fig. 1, any two adjacent racks 200 are oppositely arranged in a plurality of racks 200, and promptly the front side of neighboring cabinet 200 (or rear side) is oppositely arranged.In the description about " preceding " and " back ",, all do this understanding below if there is not specified otherwise.
According to the cooling system that is used for machine room 100 of the utility model embodiment,, avoid the air-flow short circuit through hot and cold passageway is separated; Improve the refrigerating efficiency of cooling system 100, practiced thrift electric energy, reduced use cost; Through being set, cool off separately 3 pairs of computer CPUs 300 of cooling piece simultaneously; Realized emphasis cooling, effectively reduced the temperature of computer CPU 300, guaranteed that computer CPU 300 is in the suitable operating temperature range computer main heating parts; Reduce the spoilage of computer CPU 300, and then further reduce use cost.
In addition; The cooling system that is used for machine room 100 according to the utility model embodiment; Because intake stack 1 all is located at the top of rack 200 with wind pipe 2, so compares with the set-up mode of traditional cooling air channel raised flooring, has saved the installation cooling air channel and raised required space, floor and cost; Thereby the space in the machine room can more reasonably be utilized, and space capable of using avoids waste.
In an embodiment of the utility model, air inlet 11 is fitted with the back surface of rack 200 roofs, and air outlet 21 is fitted with the front surface of rack 200 roofs.Thus; Cooling air flows out all entering air intake passageways, back from the air inlet 11 of intake stack 1; Avoid cooling air directly to flow back to wind pipe 2 from slit between air inlet 11 and rack 200 roofs and the slit between air outlet 21 and rack 200 roofs; Thereby guarantee the cooling air that flows out in the intake stack 1 all flow into the air intake passageway and with rack 200 in computer and for example computer CPU 300 heat exchanges of associated components; Take away the heat of computer and associated components, guarantee that it is in suitable working temperature, and then improve the operating efficiency of computer.Advantageously, be respectively equipped with seal between the roof of air inlet 11 and air outlet 21 and rack 200, scheme not shown.Alternatively, seal can be a rubber blanket.
Through seal is set; Thereby with fully sealing between the roof of rack 200 and air inlet 11 and the air outlet 21; Prevent that cooling air from directly flowing back to wind pipe 2 from the slit between rack 200 and air outlet 11 and the air inlet 21 under the situation of not carrying out heat exchange; The cold wind that avoids waste, and then effectively reduce the energy consumption of cooling system 100.
Because computer CPU 300 is main heating parts of computer; Also be the core component of computer simultaneously; Therefore the operating state of computer CPU 300 directly influences the operating efficiency of computer; And the working temperature that guarantees computer CPU 300 is to improve an effective way of computer CPU 300 operating efficiencies, therefore cools off separately through 3 pairs of computer CPUs 300 of cooling piece are set, and can effectively improve the operating efficiency of computer.
Wherein, cooling piece 3 does not have specific (special) requirements, as long as can realize computer CPU 300 cooling separately.For example in an example of the utility model; As shown in Figure 1; Cooling piece 3 is a heat pipe, and heat pipe 3 comprises body 31, evaporation section 32 and condensation segment 33, and wherein evaporation section 32 and condensation segment 33 are located at the two ends of body 31 respectively; Evaporation section 32 contacts with computer CPU 300, and condensation segment 33 stretches out and contacts with cold wind in the air intake passageway from the rear wall of rack 200.Working media in the heat pipe 3 absorbs the heat that computer CPU300 sheds at evaporation section 32; Absorb working media behind certain heat to condensation segment 33 motions; Moving to the heat that the cold wind of condensation segment 33 back working medias in the air intake passageway sheds and absorbs, flow back to evaporation section 32 at last again, so reciprocation cycle; Constantly with the transfer of heat of computer CPU 300 and be distributed in the air intake passageway, realize cooling effect to computer CPU 300.
Further, cooling system 100 also comprises a plurality of division boards (scheming not shown), and a plurality of division boards are located at respectively on the rear wall of rack 200 accordingly, are formed with a plurality of through holes on the division board, and wherein the condensation segment 33 of heat pipe 3 stretches out through said through hole.Particularly; Through hole can be divided into a plurality of first through holes and a plurality of second through hole; Wherein the condensation segment 33 of heat pipe 3 stretches out from first through hole, and second through hole is in the cold wind inflow rack 200 that is used in the air intake passageway, and computer and racks 200 in the rack 200 are cooled off.
Through division board is set, thereby can more effectively air intake passageway and air-out passageway be separated, avoid the air-flow short circuit, and then improve the refrigeration of cooling system 100.
Alternatively, and lower edge roughly concordant with the roof of rack 200, the upper edge of division board has predetermined altitude with respect to ground.Thus; Cold wind part in the air intake passageway gets in the rack 200 through division board to be cooled off the computer in the rack 200; Another part then flows from top to bottom and carries out heat exchange with the condensation segment 33 that extend in the air intake passageway, and the below from division board flow to the air-out passageway at last.Certainly; The utility model is not limited to this; In other embodiment of the utility model, the lower edge of division board also can contact with ground, and can offer a big through hole so that the cold air in the air intake passageway circulates this moment in the bottom of contiguous division board in the air-out passageway.
Wherein, do not have specific (special) requirements about the material of division board, advantageously, division board can be a working of plastics, can reduce production costs thus.Certainly, division board also can be wood based panel or resin plate.
In an example of the utility model, as shown in Figure 1, the bottom of each rack 200 is equipped with at least one fan 4 that is used to make cooling air to flow to wind pipe 2 from intake stack 1.That is to say that fan 4 is located at the bottom of each rack 200, be used to promote that the cold wind in the air intake passageway flows in the air-out passageway; Thereby accelerate the speed that cold wind circulates in air intake passageway and air-out passageway; Reduce cold wind and rest on the time in air intake passageway and the air-out passageway, and then improved the refrigerating efficiency of cooling system 100, cut down the consumption of energy; Also increase refrigeration simultaneously widely, guaranteed the operational efficiency of computer in the rack 200.Persons of ordinary skill in the art may appreciate that wherein fan 4 can be a plurality of, and can turn up the soil the bottom that is located at rack 200 at interval to promote cold air flow better, improve cooling effect along the fore-and-aft direction of rack 200.
Advantageously, cooling system 100 also comprises at least one temperature sensor 5, at least one valve 6 and at least one valve regulated device 7, and is as shown in Figure 1.
The bottom that at least one temperature sensor 5 is located at rack 200 rear walls respectively accordingly is used to measure the reciprocal of duty cycle of rack 200 rear wall bottom spaces, promptly is used to measure the temperature of air intake passageway bottom space.At least one valve 6 is located at air inlet 11 places of intake stack 1 respectively accordingly, is used to open or close intake stack 1, also can regulate the air output of intake stack 1 simultaneously.At least one valve regulated device 7 links to each other with temperature sensor 5 with valve 6 respectively accordingly, wherein valve regulated device 7 be configured to Temperature numerical, control valve 6 apertures according to temperature sensor 5 measurements size so that the temperature stabilization of the bottom space of rack 200 rear walls at predefined first temperature value.
It is understandable that; For improving the refrigeration of cooling system 100; The intake of convenient each air inlet 11 of control; Temperature sensor 5, valve 6 and valve regulated device 7 can be a plurality of and are located at or each air inlet 11 places of rack 200 rear walls respectively correspondingly, and promptly temperature sensor 5 is located at the bottom of rack 200 rear walls, and valve 6 is located at air inlet 11 places with valve regulated device 7.
In the air intake passageway; Because air inlet 11 up; Therefore the flow direction of cold air is for from top to bottom, owing to the upper space in air intake passageway near air inlet 11, so the temperature of upper space is relatively low and higher away from the temperature of the lower space of air inlet 11; Because cold air is heavier than hot-air, so the cold air of upper space can flow to the bottom; Simultaneously, because the guide functions of the fan 4 of rack 200 bottoms can impel the cold air on top, air intake passageway moving to the bottom spatial flow, avoid the air of lower space to stay cool for a long time; In addition; Under the double action of the buoyancy that air heat produces cold air is sent into 33 pairs of air intake passageways of condensation segment of velocity effect and heat pipe 3 from air inlet 11 in; The turbulent flow phenomenon of air can obviously strengthen in the air intake passageway; The turbulent flow phenomenon causes the strong convection of air in the air intake passageway, thereby makes the air themperature in the air intake passageway more even.Promptly under the acting in conjunction of above-mentioned three factors, the air themperature in the air intake passageway is appreciated that promptly the air themperature of air intake passageway lower space and upper space is roughly the same in order to be uniform.Therefore, the temperature of the rack 200 rear wall bottom spaces that temperature sensor 5 is measured is appreciated that and is the air themperature in the air intake passageway that promptly first temperature value is the air themperature in the air intake passageway.
Wherein, first temperature value is 23 ℃-25 ℃.
Advantageously, first temperature value is approximately 24 ℃.
Particularly; The air themperature that temperature sensor 5 is measured in the air intake passageway; When the temperature that records surpassed first temperature value for example above predefined 24 ℃, the aperture of valve regulated device 7 meeting by-pass valve controls 6 made its aperture become big; Thereby making more cold air get into the air intake passageway cools off the computer in the rack 200; Guarantee that the air themperature in the air intake passageway remains on about 24 ℃ constantly, offer good working environment of computer, prevent that some parts of computer are overheated and cause the low even damage of efficient.
The cooling system that is used for machine room 100 according to the utility model embodiment; Have like six following advantages: 1) use the air coolant; With compare as the cooling system of coolant with liquid; Avoid complicated with expensive conveyance conduit, overcome the inconvenient shortcoming of liquid cooling medium water conservancy diversion; 2) intake stack 1 and wind pipe 2 are located at the top of rack 200, compare with the pipe arrangement mode of raised flooring, have made full use of the space of machine room, avoid raising the floor, increase cost; 3) through with cold passageway and hot passageway separately and with the two isolation, avoid the air-flow short circuit, thereby improved refrigerating efficiency; 4) the main focus computer CPU 300 of 3 pairs of computers of cooling piece carries out the emphasis cooling, and the cold wind in the air intake passageway cools off computer miscellaneous part and rack 200, thereby can improve the cooling effectiveness of cooling system 100, and then cuts down the consumption of energy; 5) cooling system 100 scalable and guarantee that the air themperature in the air intake passageway is in the suitable scope, and can regulate refrigerating capacity according to instantaneous refrigeration duty; 6) no matter the heat dissipation capacity of computer is much, can guarantee that all temperature constant in the air intake passageway is to eliminate all focuses through the aperture of control valve 6.
In the description of this specification, the description of reference term " embodiment ", " some embodiment ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means the concrete characteristic, structure, material or the characteristics that combine this embodiment or example to describe and is contained among at least one embodiment or example of the utility model.In this manual, the schematic statement to above-mentioned term not necessarily refers to identical embodiment or example.And concrete characteristic, structure, material or the characteristics of description can combine with suitable manner in any one or more embodiment or example.
Although illustrated and described the embodiment of the utility model; Those having ordinary skill in the art will appreciate that: under the situation of principle that does not break away from the utility model and aim, can carry out multiple variation, modification, replacement and modification to these embodiment, the scope of the utility model is limited claim and equivalent thereof.
Claims (10)
1. cooling system that is used for machine room, said machine room comprise at least one rack and a plurality of computers that are located in the said rack, it is characterized in that, comprising:
Intake stack, said intake stack are located at the top of said rack and have at least one air inlet;
Wind pipe, said wind pipe are located at the top of said rack and have at least one air outlet, and wherein said rack is between adjacent air inlet and air outlet; With
A plurality of cooling pieces, said a plurality of cooling pieces are located at respectively in the said rack to cool off said computer CPU.
2. the cooling system that is used for machine room according to claim 1 is characterized in that, fits in the back surface of said air inlet and said cabinet top wall;
The front surface of said air outlet and said cabinet top wall is fitted.
3. the cooling system that is used for machine room according to claim 2 is characterized in that, is respectively equipped with seal between the roof of said air inlet and said air outlet and said rack.
4. the cooling system that is used for machine room according to claim 3 is characterized in that, said cooling piece is a heat pipe, and said heat pipe comprises:
Body;
Be located at the evaporation section and the condensation segment at said body two ends respectively, wherein said evaporation section contacts with said CPU, and said condensation segment stretches out from the rear wall of said rack.
5. the cooling system that is used for machine room according to claim 4; It is characterized in that, also comprise: a plurality of division boards, said division board are located on the rear wall of said rack; Be formed with a plurality of through holes on the said division board, the condensation segment of wherein said heat pipe stretches out through said through hole.
6. the cooling system that is used for machine room according to claim 5 is characterized in that, and lower edge roughly concordant with the roof of said rack, the upper edge of said division board has predetermined altitude with respect to ground.
7. the cooling system that is used for machine room according to claim 1 is characterized in that, the bottom of each said rack is equipped with at least one fan that is used to make cooling air to flow to said wind pipe from said intake stack.
8. the cooling system that is used for machine room according to claim 1 is characterized in that, said cooling system also comprises:
The bottom that at least one temperature sensor, said at least one temperature sensor are located at said rack rear wall respectively accordingly is used to measure the temperature of said rack rear wall bottom space;
At least one valve, said at least one valve is located at the air inlet place of said intake stack respectively accordingly;
At least one valve regulated device; Said at least one valve regulated device links to each other with said temperature sensor with said valve respectively accordingly, wherein said valve regulated device be configured to Temperature numerical, the said valve opening of adjusting according to said temperature sensor measurement size so that the temperature stabilization of the bottom space of said rack rear wall at predefined first temperature value.
9. the cooling system that is used for machine room according to claim 8 is characterized in that, said first temperature value is 23 ℃-25 ℃.
10. the cooling system that is used for machine room according to claim 9 is characterized in that, said first temperature value is approximately 24 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201486634U CN202565648U (en) | 2012-04-10 | 2012-04-10 | Cooling system used in machine room |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201486634U CN202565648U (en) | 2012-04-10 | 2012-04-10 | Cooling system used in machine room |
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| CN202565648U true CN202565648U (en) | 2012-11-28 |
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| CN2012201486634U Expired - Fee Related CN202565648U (en) | 2012-04-10 | 2012-04-10 | Cooling system used in machine room |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109737535A (en) * | 2019-03-11 | 2019-05-10 | 佛山艾克斯光电科技有限公司 | High-accuracy more sensing large space constant temperature systems |
-
2012
- 2012-04-10 CN CN2012201486634U patent/CN202565648U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109737535A (en) * | 2019-03-11 | 2019-05-10 | 佛山艾克斯光电科技有限公司 | High-accuracy more sensing large space constant temperature systems |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121128 Termination date: 20200410 |
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| CF01 | Termination of patent right due to non-payment of annual fee |