CN211455772U - Battery energy storage cabinet - Google Patents
Battery energy storage cabinet Download PDFInfo
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- CN211455772U CN211455772U CN202020165041.7U CN202020165041U CN211455772U CN 211455772 U CN211455772 U CN 211455772U CN 202020165041 U CN202020165041 U CN 202020165041U CN 211455772 U CN211455772 U CN 211455772U
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- 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
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Abstract
The utility model relates to an energy storage technology field specifically discloses a battery energy storage cabinet, including cabinet body and first wind channel, this internal a plurality of chambeies of placing that are used for placing the battery that have of cabinet, first wind channel has cold wind entry and cold wind export, the chamber is placed towards to the cold wind export, a battery for placing the intracavity dispels the heat, first wind channel includes at least the sub-wind channel that sets up along vertical direction, the cold wind export sets up on sub-wind channel, the sub-wind channel reduces along vertical direction from top to bottom sectional area, the one end of placing the chamber back of the cold wind export is the hot air outlet end after the battery heat exchange, the outside intercommunication of hot air outlet end and cabinet body. The utility model discloses a battery energy storage cabinet possess the effect that the heat dissipation is even, the cold wind high-usage, the security is high.
Description
Technical Field
The utility model relates to an energy storage technology field especially relates to a battery energy storage cabinet.
Background
In the energy storage trade, can use battery energy storage cabinet to carry out the energy storage usually, however in-process that the battery in the cabinet body will input electric energy conversion chemical energy, also just along with electric energy conversion becomes the loss of heat energy, the heat energy that the battery gived off will accumulate in sealed cabinet body, leads to the internal continuous intensification of cabinet. On the one hand, the charge-discharge efficiency of the battery itself can be reduced by the accumulated heat energy, and on the other hand, the risk of spontaneous combustion and even explosion of the battery can be caused by the accumulated heat energy to a certain extent, so that heat dissipation measures need to be added to the battery energy storage cabinet.
Generally, in order to dissipate heat of the battery energy storage cabinet, a refrigeration air conditioner may be added in the cabinet body, or a water cooling device may be added to the battery in the cabinet body. However, when the refrigeration air conditioner is used for heat dissipation, due to the fact that the density of cold air and the density of hot air are different, cold air discharged by the refrigeration air conditioner can directly sink to the bottom of the cabinet body, the local temperature difference in the cabinet body is large, and heat dissipation is uneven; when the water cooling device is used for heat dissipation on the battery, the risk of short circuit and electric leakage caused by water leakage is easy to occur.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of the utility model is to provide a battery energy storage cabinet, its heat dissipation is even, the cold wind high-usage, the security is high.
To achieve the purpose, the embodiment of the present invention adopts the following technical solutions:
the utility model provides a battery energy storage cabinet, wind channel including cabinet body and guide cold wind trend, including cabinet body and first wind channel, this internal a plurality of chambeies of placing that are used for placing the battery that have of cabinet, first wind channel has cold wind entry and cold wind export, the cold wind export orientation place the chamber, be used for right place the battery of intracavity and dispel the heat, first wind channel includes at least the sub-wind channel that sets up along vertical direction, the cold wind export sets up on the sub-wind channel, the sub-wind channel is followed vertical direction and is reduced from top to bottom the sectional area, place the chamber and carry on the back the one end of cold wind export does hot air outlet end after the battery heat exchange, hot air outlet end with the outside intercommunication of cabinet body.
As a preferred scheme of the battery energy storage cabinet, the first air duct includes a plurality of the cold air outlets, a plurality of layers of the placing cavities are arranged in the cabinet body along a vertical direction, the sub-air duct has a first side surface and a second side surface which are arranged oppositely, the cold air outlets are arranged on the first side surface, and each cold air outlet corresponds to each layer of the placing cavities one by one;
the second side face is provided with a stepped structure which is arranged along the vertical direction, and the number of steps of the stepped structure corresponds to the number of layers of the placing cavity; or the second side surface is obliquely provided with a slope structure.
As a preferred scheme of the battery energy storage cabinet, the placing cavity is provided with a cold air inlet end and a hot air outlet end which are oppositely arranged, the cold air inlet end is communicated with the cold air outlet of the first air channel, the hot air outlet end is communicated with the second air channel, and the second air channel is communicated with the outside of the cabinet body.
As a preferred scheme of the battery energy storage cabinet, the hot air outlet end and the inner wall of the cabinet body are arranged at intervals, and the second air duct is formed between the hot air outlet end and the inner wall of the cabinet body.
As a preferred scheme of the battery energy storage cabinet, an air conditioner is arranged on the cabinet body, and a cold air outlet of the air conditioner is communicated with the cold air inlet of the first air duct; or the like, or, alternatively,
the cabinet body is provided with a first fan, and the first fan faces the cold air inlet and is used for blowing air into the first air channel.
As a preferred scheme of the battery energy storage cabinet, the cabinet body comprises a support and a plurality of panels wrapping the support, and the placing cavity is arranged in the support.
As a preferred scheme of battery energy storage cabinet, first wind channel includes a plurality ofly the cold wind export, every the cold wind export is provided with the second and adjusts the structure, the second is adjusted the structure and is used for adjusting the air output of cold wind export.
As a preferred scheme of the battery energy storage cabinet, the second adjusting structure comprises a wind shield, adjusting holes are formed in the wind shield, and the wind shield is arranged on the cold air outlet.
As a preferable scheme of the battery energy storage cabinet, the second adjusting structure further comprises a guide rail, the guide rail is arranged on the cold air outlet, and the wind shield can slide along the guide rail relative to the cold air outlet.
As a preferable scheme of the battery energy storage cabinet, a second fan is arranged between each battery and the hot air outlet end, and the second fan is used for sucking air close to one side of each battery.
The utility model discloses beneficial effect does:
the utility model discloses a battery energy storage cabinet includes cabinet body and first wind channel, and this internal a plurality of chambeies of placing that are used for placing the battery that have of cabinet, the cold wind entry in first wind channel is used for letting in cold wind, places the chamber with the cold wind export orientation in first wind channel, can lead to on placing the battery in chamber through the cold wind of circulation in the first wind channel to dispel the heat to the battery. In addition, the first air duct at least comprises a sub air duct which is arranged in the vertical direction, and the cold air outlet is arranged on the sub air duct. Although the density of the cold air is greater than that of the hot air, and the cold air at the upper end of the sub-air channel gradually sinks, the sectional area of the sub-air channel is reduced from top to bottom along the vertical direction, so that the balance of the refrigeration effect of each cold air outlet on the sub-air channel can be realized, the battery is contacted with the uniform cold air, and the uniform heat dissipation effect is achieved. Moreover, the one end that deviates from the cold wind export on the cabinet body is provided with hot air outlet end, and after the battery carried out the heat exchange with cold wind, the cabinet body can follow hot air outlet end output and be hot-blast, strengthens battery energy storage cabinet's radiating effect. The sub-air ducts vertically arranged in the embodiment of the utility model act together with gravity, so that cold air is prevented from directly sinking to the bottom of the cabinet body, and the local temperature difference in the cabinet body is prevented from being large; in addition, a water cooling device is not used for heat dissipation, and the risk of short circuit and electric leakage caused by water leakage can be avoided. Therefore, the utility model discloses battery energy storage cabinet possess the effect that the heat dissipation is even, the cold wind high-usage, the security is high.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is an assembly structure sectional view of the battery energy storage cabinet provided by an embodiment of the present invention.
Fig. 2 is a schematic view of a partial structure of a battery energy storage cabinet according to another embodiment of the present invention.
Fig. 3 is a sectional view of a wind channel according to another embodiment of the present invention.
Fig. 4 is a partial enlarged sectional view of a structure shown in fig. 3 according to another embodiment of the present invention.
Fig. 5 is a schematic partial structure diagram of an air duct according to another embodiment of the present invention.
Fig. 6 is a schematic view of an exploded structure of a battery energy storage cabinet according to another embodiment of the present invention.
Fig. 7 is a sectional view of a wind channel according to another embodiment of the present invention.
In the figure:
1. a cabinet body; 11. a placement chamber; 12. a hot air outlet end; 13. a cold air inlet end; 14. a support; 15. a panel; 2. a first air duct; 21. a cold air inlet; 22. a cold air outlet; 23. a sub-duct; 231. a first side surface; 232. a second side surface; 2321. a first inner wall; 2322. a second inner wall; 24. an adjustment structure; 241. a wind deflector; 242. a guide rail;
3. a battery; 4. a second air duct; 5. an air conditioner; 6. a first fan; 7. a waterproof adhesive tape; 8. a second fan.
Detailed Description
In order to make the technical problems, technical solutions and technical effects achieved by the present invention more clear, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Referring to fig. 1, the embodiment of the utility model provides a battery energy storage cabinet, including cabinet body 1 and first wind channel 2, the chamber 11 of placing that has a plurality of being used for placing battery 3 in the cabinet body 1, first wind channel 2 has cold wind entry 21 and cold wind export 22, cold wind export 22 is towards placing chamber 11, be used for dispelling the heat to placing battery 3 in the chamber 11, first wind channel 2 includes at least the sub-wind channel 23 along the setting of vertical direction, cold wind export 22 sets up on sub-wind channel 23, sub-wind channel 23 reduces along vertical direction from top to bottom sectional area, place the one end that chamber 11 deviates from cold wind export 22 and be the hot air outlet end 12 after the heat exchange of battery 3, hot air outlet end 12 and cabinet body 1's outside intercommunication.
The utility model discloses a battery energy storage cabinet includes cabinet body 1 and first wind channel 2, has a plurality of chambeies 11 of placing that are used for placing battery 3 in the cabinet body 1, and the cold wind entry 21 of first wind channel 2 is used for letting in cold wind, places chamber 11 with the cold wind export 22 orientation of first wind channel 2, can lead to on placing chamber 11's battery 3 through the cold wind of circulation in the first wind channel 2 to dispel the heat to battery 3. In addition, the first air duct 2 at least includes a sub-air duct 23 disposed in a vertical direction, and the cold air outlet 22 is disposed on the sub-air duct 23. Although the density of the cold air is greater than that of the hot air, and the cold air at the upper end of the sub-air duct 23 gradually sinks, the sectional area of the sub-air duct 23 is reduced from top to bottom along the vertical direction, so that the balance of the refrigeration effect of each cold air outlet 22 on the sub-air duct 23 can be realized, the batteries 3 are contacted with uniform cold air, and the effect of uniform heat dissipation is achieved. Furthermore, the one end that deviates from cold wind export 22 on cabinet body 1 is provided with hot air outlet end 12, and after battery 3 carried out the heat exchange with cold wind, cabinet body 1 can follow hot air outlet end 12 output and be hot-blast, strengthens battery energy storage cabinet's radiating effect. The battery energy storage cabinet provided by the embodiment of the utility model has the advantages that the vertically arranged sub-air ducts 23 and the gravity act together, so that cold air is prevented from directly sinking to the bottom of the cabinet body 1, and the local temperature difference in the cabinet body 1 is prevented from being large; in addition, a water cooling device is not used for heat dissipation, and the risk of short circuit and electric leakage caused by water leakage can be avoided. Therefore, the utility model discloses battery energy storage cabinet possess the effect that the heat dissipation is even, the cold wind high-usage, the security is high.
In an embodiment, referring to fig. 1 and 4, the first air duct 2 may include a plurality of cool air outlets 22, similarly, the multiple layers of placing cavities 11 are disposed in the cabinet body 1 along the vertical direction, the sub-air duct 23 has a first side 231 and a second side 232 disposed opposite to each other, the cool air outlets 22 are disposed on the first side 231, each cool air outlet 22 corresponds to each placing cavity 11, the cool air is guided to the first side 231 by the second side 232, and the cool air is output from the plurality of cool air outlets 22 on the first side 231. Wherein, the shape structure of the second side 232 may be various, for example, referring to fig. 7, the second side 232 may be obliquely provided with a slope structure, by which the second side 232 is a guide surface. In a preferred embodiment, referring to fig. 1 to 4, the second side surface 232 may be provided with a stepped structure arranged along the vertical direction, the stepped structure has a first inner wall 2321 parallel to the vertical direction and a second inner wall 2322 arranged at an included angle with the vertical direction, the second side surface 232 guides the cold air into different directions through the stepped structure of the first inner wall 2321 and the second inner wall 2322, and the directional guiding effect refers to fig. 3, so that the air volume adjusting effect of the sub-duct 23 is more uniform.
Further, referring to fig. 1 and 5, the number of steps of the step structure corresponds to the number of layers of the placing cavity 11, and the cold air can be accurately guided to the batteries 3 placed in the placing cavity 11 through the second inner wall 2322, so that the utilization efficiency of the cold air is enhanced.
In particular, in one embodiment, referring to fig. 1, the placing cavity 11 has a cold air inlet end 13 and a hot air outlet end 12 which are oppositely arranged, the cold air inlet end 13 is communicated with the cold air outlet 22 of the first air duct 2, the hot air outlet end 12 is communicated with the second air duct 4, the second air duct 4 is communicated with the outside of the cabinet body 1, and the hot air discharged from the hot air outlet end 12 can be collected and uniformly guided to the outside of the cabinet body 1 through the second air duct 4.
Further, the hot air outlet end 12 and the inner wall of the cabinet body 1 can be arranged at intervals, a second air duct 4 is formed between the hot air outlet end 12 and the inner wall of the cabinet body 1, the second air duct 4 is formed by utilizing the existing structure, and the size and the cost of the battery energy storage cabinet can be further reduced.
The source of the cool air may be various, for example, in one embodiment, referring to fig. 1 and 6, an air conditioner 5 is provided on the cabinet body 1, a cool air discharge port of the air conditioner 5 communicates with a cool air inlet 21 of the first duct 2, and cool air is supplied to the first duct 2 through the air conditioner 5. Alternatively, referring to fig. 2, the first fan 6 may be disposed on the cabinet body 1, and the first fan 6 faces the cold air inlet 21 and blows air into the first air duct 2 to form cold air.
In a preferred embodiment, the second air duct 4 may be connected to a ventilation port of the air conditioner 5, and the hot air in the battery energy storage cabinet is introduced into the ventilation port of the air conditioner 5, so as to discharge the hot air, and on the other hand, the convection circulation in the battery energy storage cabinet can be accelerated by inputting cold air in combination with a cold air discharge port of the air conditioner 5.
Preferably, in one embodiment, referring to fig. 6, the cabinet body 1 may include a bracket 14 and a plurality of panels 15 covering the bracket 14, the placing cavity 11 is disposed in the bracket 14, and the cabinet body 1 is formed by the bracket 14 and the plurality of panels 15 covering the bracket 14, so that the battery energy storage cabinet forms a sealed environment.
In another embodiment, referring to fig. 6, a waterproof rubber strip 7 may be disposed between the connection of the air conditioner 5 and the cabinet body 1 to block rainwater outside the air conditioner 5 from entering the inside of the cabinet body 1 to protect the internal battery 3.
In addition, referring to fig. 4, the first air duct 2 includes a plurality of cold air outlets 22, each cold air outlet 22 is provided with an adjusting structure 24, and the adjusting structure 24 can adjust the cavity diameter of the cold air outlet 22, so as to adjust the air output of the cold air outlet 22, and adjust the air output of the first air duct 2 according to the actual use requirement.
The adjusting structure 24 may be implemented in various manners, for example, the adjusting structure 24 may be composed of a plurality of air deflectors, the amount of the cold air discharged from the cold air outlet 22 can be adjusted by adjusting the opening/closing degrees of the plurality of air deflectors, and the size of the cavity diameter of the cold air outlet 22 is controlled by opening/closing the air deflectors. In a preferred embodiment, referring to fig. 4, the adjusting structure 24 may include a wind shielding plate 241, the wind shielding plate 241 may be provided with an adjusting hole, and the wind shielding plate 241 may be provided on the cold air outlet 22, and the size of the adjusting hole may be used to adjust the air output of the cold air outlet 22. On the other hand, different air outlet levels can be arranged on the wind shield 241, the area where each air outlet level is located just covers the cold air outlet 22, and the area where each air outlet level is located is provided with uniformly distributed adjusting holes, so that the effect of uniform air outlet can be achieved.
Further, referring to fig. 5, the adjusting structure 24 further includes a guide rail 242, the guide rail 242 is disposed on the cold air outlet 22, the wind deflector 241 of the present embodiment can slide along the guide rail 242 relative to the cold air outlet 22, the wind deflector 241 can be in a strip shape, adjusting holes with different density and different aperture sizes on the wind deflector 241 can slide on the guide rail 242 until the cold air outlet 22 is over against the adjusting hole position with the required density and the required aperture size, so as to achieve the effect of self-defining the air output of the cold air outlet 22, and in addition, the guide rail 242 can also fix the wind deflector 241.
In particular, referring to fig. 1 and 6, a second fan 8 is disposed between each battery 3 and the hot air outlet end 12, and the second fan 8 is used for sucking air near one side of the battery 3, so that cold air discharged from the cold air outlet 22 is quickly sucked to the battery 3 by the second fan 8, and the air conditioner 5 can quickly output new cold air at the cold air outlet, thereby enhancing the heat exchange efficiency of the battery energy storage cabinet.
In the description herein, it is to be understood that the terms "upper", "lower", "right", and the like are used in a descriptive sense or positional relationship based on the orientation or positional relationship shown in the drawings for convenience of description and simplicity of operation, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used merely for descriptive purposes and are not intended to have any special meaning.
In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be appropriately combined to form other embodiments as will be appreciated by those skilled in the art.
The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.
Claims (10)
1. The utility model provides a battery energy storage cabinet, a serial communication port, includes cabinet body and first wind channel, this internal a plurality of chambeies of placing that are used for placing the battery that have of cabinet, first wind channel has cold wind entry and cold wind export, the cold wind export orientation place the chamber, be used for right place the battery of intracavity and dispel the heat, first wind channel includes at least the sub-wind channel that sets up along vertical direction, the cold wind export sets up on the sub-wind channel, the sub-wind channel is followed vertical direction and is reduced from top to bottom the sectional area, place the chamber dorsad the one end of cold wind export does hot air outlet end after the battery heat exchange, hot air outlet end with the outside intercommunication of cabinet body.
2. The battery energy storage cabinet of claim 1, wherein the first air duct comprises a plurality of cold air outlets, a plurality of layers of the placing cavities are arranged in the cabinet body along a vertical direction, the sub-air duct has a first side surface and a second side surface which are oppositely arranged, the cold air outlets are arranged on the first side surface, and each cold air outlet corresponds to each layer of the placing cavities one by one;
the second side face is provided with a stepped structure which is arranged along the vertical direction, and the number of steps of the stepped structure corresponds to the number of layers of the placing cavity; or the second side surface is obliquely provided with a slope structure.
3. The battery energy storage cabinet of claim 1, wherein the placing cavity has a cold air inlet end and a hot air outlet end which are oppositely arranged, the cold air inlet end is communicated with the cold air outlet of the first air duct, the hot air outlet end is communicated with a second air duct, and the second air duct is communicated with the outside of the cabinet body.
4. The battery energy storage cabinet of claim 3, wherein the hot air outlet end is spaced apart from an inner wall of the cabinet body, and the second air duct is formed therebetween.
5. The battery energy storage cabinet of claim 1, wherein an air conditioner is arranged on the cabinet body, and a cold air outlet of the air conditioner is communicated with the cold air inlet of the first air duct; or the like, or, alternatively,
the cabinet body is provided with a first fan, and the first fan faces the cold air inlet and is used for blowing air into the first air channel.
6. The battery energy storage cabinet of claim 1, wherein the cabinet body comprises a support and a plurality of panels covering the support, and the placement cavity is disposed in the support.
7. The battery energy storage cabinet of claim 1, wherein the first air duct comprises a plurality of cold air outlets, and each cold air outlet is provided with an adjusting structure for adjusting the air output of the cold air outlet.
8. The battery energy storage cabinet of claim 7, wherein the adjusting structure comprises a wind screen, the wind screen is provided with an adjusting hole, and the wind screen is arranged on the cold air outlet.
9. The battery energy storage cabinet of claim 8, wherein the adjustment structure further comprises a guide rail disposed on the cool air outlet, and the wind deflector is slidable along the guide rail relative to the cool air outlet.
10. A battery energy storage cabinet according to claim 1, wherein a second fan is provided between each battery and the hot air outlet for drawing air adjacent one side of the battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020165041.7U CN211455772U (en) | 2020-02-12 | 2020-02-12 | Battery energy storage cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020165041.7U CN211455772U (en) | 2020-02-12 | 2020-02-12 | Battery energy storage cabinet |
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| CN211455772U true CN211455772U (en) | 2020-09-08 |
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| CN202020165041.7U Active CN211455772U (en) | 2020-02-12 | 2020-02-12 | Battery energy storage cabinet |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113187678A (en) * | 2021-03-19 | 2021-07-30 | 阳光电源股份有限公司 | Wind power energy storage system and multi-energy complementary energy station |
| CN115923598A (en) * | 2022-12-22 | 2023-04-07 | 中国铁塔股份有限公司 | Temperature control device |
-
2020
- 2020-02-12 CN CN202020165041.7U patent/CN211455772U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113187678A (en) * | 2021-03-19 | 2021-07-30 | 阳光电源股份有限公司 | Wind power energy storage system and multi-energy complementary energy station |
| CN115923598A (en) * | 2022-12-22 | 2023-04-07 | 中国铁塔股份有限公司 | Temperature control device |
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