CN114007398A - Auxiliary temperature control assembly for information security network switch - Google Patents
Auxiliary temperature control assembly for information security network switch Download PDFInfo
- Publication number
- CN114007398A CN114007398A CN202111409681.3A CN202111409681A CN114007398A CN 114007398 A CN114007398 A CN 114007398A CN 202111409681 A CN202111409681 A CN 202111409681A CN 114007398 A CN114007398 A CN 114007398A
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- China
- Prior art keywords
- temperature control
- heat dissipation
- pipe
- inner cavity
- information security
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
- H05K7/20272—Accessories for moving fluid, for expanding fluid, for connecting fluid conduits, for distributing fluid, for removing gas or for preventing leakage, e.g. pumps, tanks or manifolds
Abstract
The invention relates to the technical field of heat dissipation and temperature control of a switch, in particular to an auxiliary temperature control assembly for an information security network switch, which comprises a temperature control device, wherein the temperature control device is installed on the switch in a sliding and inserting manner, an insulating shell is installed at the lower end of the temperature control device in a threaded lifting manner, a plurality of groups of heat dissipation calandria formed by arranging transversely extending connecting pipes are rotatably installed at the upper end of the temperature control device, and a metal heat dissipation frame with a heat conduction inner cavity is installed in an inner cavity of the insulating shell in an inserting manner, so that the auxiliary temperature control assembly has the beneficial effects that: set up temperature regulating device through sliding to through the installation that goes up and down, make heat abstractor realize with the adaptation of switch heat production position, utilize calandria, heat dissipation frame and circulating flow's coolant liquid simultaneously, realize efficient heat dissipation, satisfy the heat dissipation of full power operation switch, avoid local overheat, improved the protection of inside electricity original paper and data transmission's stability.
Description
Technical Field
The invention relates to the technical field of heat dissipation and temperature control of exchangers, in particular to an auxiliary temperature control assembly for an information security network exchanger.
Background
The switch is a device commonly used in information data transmission, and in the actual use process, especially in the process of bulk data transmission, information needs to be exchanged and transmitted through the switch.
In the high-power operation in-process of switch, can produce a large amount of heats, need carry out temperature regulation through heat abstractor, current attemperator is the forced air cooling heat dissipation mostly, such radiating mode is applicable to the use of small-size electricity original paper, but to the switch of full power operation, its inside electricity original paper required precision is high, stability requirement when to information exchange is also high, traditional radiating mode is not enough to satisfy radiating needs, the heat production position of switch is single and fixed simultaneously, lead to local position overheated very easily, and there is great deviation in the switch internally mounted position that does not, external heat abstractor is difficult to carry out the adaptation installation.
Therefore, the auxiliary temperature control assembly for the information security network switch is provided to solve the problems of position adaptation and heat dissipation efficiency of the heat dissipation and temperature adjustment device.
Disclosure of Invention
The invention aims to provide an auxiliary temperature control component for an information security network switch, which solves the problems in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme:
an auxiliary temperature control component for an information security network switch comprises a temperature control device, wherein the temperature control device is installed on the switch in a sliding insertion mode, an insulating shell is installed at the lower end of the temperature control device in a threaded lifting mode, a plurality of groups of heat dissipation calandria formed by arranging transversely extending connecting pipes are installed at the upper end of the temperature control device in a rotating mode, the inner cavity of the insulating shell is inserted with a metal heat dissipation frame with a heat conduction inner cavity, the outer edge of the metal heat dissipation frame is inserted in the inner cavity of the insulating shell in a sliding way through an I-shaped connecting rod, the heat conduction inner cavity at the upper end of the metal heat dissipation frame is sealed through a sealing end cover, the sealing end cover is characterized in that three groups of linearly distributed air bag balls communicated with the heat conduction inner cavity are arranged between the upper end of the sealing end cover and the inner wall of the insulating shell, a feeding pipe and a pumping pipe which extend into the heat conduction inner cavity are vertically inserted into the sealing end cover, and the feeding pipe and the pumping pipe are communicated with the heat dissipation calandria through branch pipes and return pipes respectively.
Preferably, the lower extreme of temperature regulating device is provided with the screw thread hole, insulating casing's upper end is vertical to be provided with the screw rod, and insulating casing's lower extreme is provided with the annular pressure-bearing packing ring of circle, the screw rod screw thread rotates to be installed in the screw thread hole, the pressure-bearing packing ring pressfitting is on the upper end outer wall of switch.
Preferably, the two ends of the heat dissipation calandria are respectively provided with a bus board and a splitter plate, the splitter plate is connected with a plurality of linearly distributed component pipes, the bus board is connected with a return pipe, and the middle section of the plurality of linearly distributed component pipes is provided with a micro liquid pump.
Preferably, the last rotation radiating groove that is provided with of temperature regulating device, the fixed bull stick that is provided with in both ends around the heat dissipation calandria, the heat dissipation calandria rotates through the bull stick and installs in rotating the radiating groove, and the heat dissipation calandria is high right-low slope distribution in rotating the radiating groove.
Preferably, a pair of through holes which are bilaterally symmetrical are formed in the upper end of the insulating shell, the upper ends of the feeding pipe and the pumping pipe extend to the lower end of the temperature control device along the through holes, and the upper ends of the feeding pipe and the pumping pipe are respectively communicated with the return pipe and the branch pipe through a pair of spiral guide pipes which are bilaterally symmetrical.
Preferably, the circular arc outer wall of metal heat dissipation frame is provided with the annular extension board of circle, insulating casing's lower extreme is provided with the regulation inner chamber of echelonment, and the position that lies in the ladder inner wall on the insulating casing is provided with the through-hole that runs through from top to bottom, the I-shaped connecting rod slides along the through-hole and runs through the grafting on insulating casing and extension board, and the vertical light spring that has cup jointed on the I-shaped connecting rod, the light spring pressfitting is on the lower extreme end plate of the inner wall of adjusting the inner chamber and I-shaped connecting rod.
Preferably, the feeding pipe and the pumping pipe are fixedly inserted on the sealing end cover, a folding pipe is arranged at the middle section of the feeding pipe and the pumping pipe, and the folding pipe is positioned in a gap between the inner wall of the adjusting inner cavity and the sealing end cover.
Preferably, a communication port is formed in the position, corresponding to the air bag ball, of the sealing end cover, the air bag ball is fixed to the sealing end cover, the lower end of the air bag ball is communicated with the heat conduction inner cavity through the communication port, and the air bag ball is pressed between the inner wall of the upper end of the adjusting inner cavity and the outer wall of the upper end of the sealing end cover.
Compared with the prior art, the invention has the beneficial effects that:
1. the temperature control device is arranged in a sliding mode, the heat dissipation device is installed in a lifting mode, the heat dissipation device is matched with a heat production position of the switch, meanwhile, the heat dissipation device can achieve efficient heat dissipation by utilizing the exhaust pipes, the heat dissipation frame and the cooling liquid flowing circularly, the heat dissipation of the switch running at full power is met, local overheating is avoided, and the protection of internal electrical elements and the stability of data transmission are improved;
2. according to the invention, the sealing end cover with the folding tube and the air bag ball is arranged, so that the folding tube is matched with the heat dissipation device in a lifting adjustment mode, the air bag ball is used for accommodating airflow when cooling liquid enters and pressing the heat dissipation frame on the exchanger, a heat dissipation blind spot is avoided, the heat dissipation device is accommodated, and the purpose of prolonging the service life is achieved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the internal structure of the insulating housing of the present invention;
FIG. 3 is an exploded view of the built-in three-dimensional structure of the insulating housing of the present invention;
FIG. 4 is a schematic perspective view of a heat conducting device according to the present invention;
FIG. 5 is a schematic perspective view of a heat dissipation pipe array according to the present invention;
fig. 6 is a perspective view of the built-in structure of the insulating housing of the present invention.
In the figure: 1. a switch; 2. a temperature control device; 3. rotating the heat dissipation groove; 4. a heat dissipation calandria; 5. an insulating housing; 6. a metal heat dissipation frame; 7. a screw; 8. a threaded inner bore; 9. a micro liquid pump; 10. pipe distribution; 11. a return pipe; 12. a flow distribution plate; 13. a bus bar; 14. a rotating rod; 15. a pressure-bearing washer; 16. adjusting the inner cavity; 17. an extension plate; 18. a heat conducting inner cavity; 19. sealing the end cap; 20. a helical conduit; 21. a material pumping pipe; 22. a feed pipe; 23. an air bag ball; 24. folding the tube; 25. a communication port; 26. a light spring; 27. an I-shaped connecting rod; 28. a through hole; 29. a through hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 6, the present invention provides a technical solution:
an auxiliary temperature control assembly for an information security network switch comprises a temperature control device 2, the temperature control device 2 is installed on a switch 1 in a sliding insertion mode, an insulating shell 5 is installed at the lower end of the temperature control device 2 in a threaded lifting mode, a threaded inner hole 8 is formed in the lower end of the temperature control device 2, a screw 7 is vertically arranged at the upper end of the insulating shell 5, a circular ring-shaped pressure-bearing gasket 15 is arranged at the lower end of the insulating shell 5, the screw 7 is installed in the threaded inner hole 8 in a rotating mode through threads, the pressure-bearing gasket 15 is pressed on the outer wall of the upper end of the switch 1 in a pressing mode, the position of the temperature control device 2 is adjusted through sliding adjustment, so that the temperature control device 2 moves to a centralized heat production position, the adaptability of the temperature control device 2 is improved, through the rotation of screw rod 7 in screw thread hole 8, realize adjusting insulating casing 5's height, avoid causing the influence to heat abstractor at the slip in-process.
The inner cavity of the insulating shell 5 is inserted with a metal heat radiation frame 6 with a heat conduction inner cavity 18, the outer edge of the metal heat radiation frame 6 is inserted in the inner cavity of the insulating shell 5 in a sliding way through an I-shaped connecting rod 27, the circular arc outer wall of the metal heat radiation frame 6 is provided with a circular ring-shaped extension plate 17, the lower end of the insulating shell 5 is provided with a step-shaped adjusting inner cavity 16, the position of the insulating shell 5, which is positioned on the inner wall of the step, is provided with a through hole 28 which penetrates up and down, an I-shaped connecting rod 27 penetrates through the insulating shell 5 and the extension plate 17 along the through hole 28 in a sliding manner, and the I-shaped connecting rod 27 is vertically sleeved with a light spring 26, the light spring 26 is pressed on the inner wall of the adjusting inner cavity 16 and the lower end plate of the I-shaped connecting rod 27, the metal heat dissipation frame 6 is installed in a lifting and sliding mode by matching the extension plate 17 and the I-shaped connecting rod 27, and the metal heat dissipation frame 6 keeps the upward pressing trend by the light spring 26.
The upper end of temperature regulating device 2 is rotated and is installed the heat dissipation calandria 4 that the even pipe of multiunit horizontal extension was arranged and is formed, be provided with on the temperature regulating device 2 and rotate radiating groove 3, both ends are fixed around heat dissipation calandria 4 and are provided with bull stick 14, heat dissipation calandria 4 rotates through bull stick 14 and installs in rotating radiating groove 3, heat dissipation calandria 4 is in rotating radiating groove 3 the high right-hand side low slope distribution, utilize bull stick 14 to realize the slope installation of heat dissipation calandria 4, and then realize the automatic backward flow of 4 built-in coolants of heat dissipation calandria, realize shunting the coolant liquid through heat dissipation calandria 4, thereby reach the purpose that improves the radiating efficiency.
The vertical grafting has inlet pipe 22 and the material pumping pipe 21 that extends to in the heat conduction inner chamber 18 on the end cover 19, inlet pipe 22 and material pumping pipe 21 communicate heat dissipation calandria 4 through being in charge of 10 and back flow 11 respectively, the both ends of heat dissipation calandria 4 are provided with cylinder manifold 13 and flow manifold 12 respectively, be connected with the multicomponent pipe 10 of linear distribution on the flow manifold 12, be connected with back flow 11 on the cylinder manifold 13, the interlude of the multicomponent pipe 10 of linear distribution is provided with miniature liquid pump 9, utilize miniature liquid pump 9, be in charge of 10, back flow 11, inlet pipe 22, material pumping pipe 21 and heat conduction inner chamber 18 form closed loop pipe and connect, make the coolant liquid circulate in the pipeline and flow.
The upper end of the insulating shell 5 is provided with a pair of through holes 29 which are bilaterally symmetrical, the upper ends of the feeding pipe 22 and the pumping pipe 21 extend to the lower end of the temperature control device 2 along the through holes 29, the upper ends of the feeding pipe 22 and the pumping pipe 21 are respectively communicated with the return pipe 11 and the branch pipe 10 through a pair of spiral guide pipes 20 which are bilaterally symmetrical, and the extension and the contraction of the spiral guide pipes 20 are adapted to the height adjustment of the insulating shell 5.
The feeding pipe 22 and the pumping pipe 21 are fixedly inserted on the sealing end cover 19, the middle sections of the feeding pipe 22 and the pumping pipe 21 are provided with the folding pipe 24, the folding pipe 24 is positioned in a gap between the inner wall of the adjusting inner cavity 16 and the sealing end cover 19, and the folding pipe 24 is adapted to the lifting adjustment of the metal heat dissipation frame 6 in the adjusting inner cavity 16.
The heat conducting inner cavity 18 at the upper end of the metal heat radiating frame 6 is sealed by a sealing end cover 19, three groups of linearly distributed air bag balls 23 communicated with the heat conducting inner cavity 18 are arranged between the upper end of the sealing end cover 19 and the inner wall of the insulating shell 5, a communication port 25 is arranged at the position, corresponding to the air bag balls 23, on the sealing end cover 19, the air bag balls 23 are fixed on the sealing end cover 19, the lower end of the air bag balls 23 is communicated with the heat conducting inner cavity 18 through the communication port 25, the air bag balls 23 are pressed between the inner wall of the upper end of the adjusting inner cavity 16 and the outer wall of the upper end of the sealing end cover 19, cooling liquid is injected into the heat conducting inner cavity 18 through a micro liquid pump 9, so that redundant air flow inside is pressed on the air bag balls 23, the air bag balls 23 expand, the extrusion on the light springs 26 is realized under the action of the gravity of the cooling liquid and the expansion extrusion force of the air bag balls 23, and the metal heat radiating frame 6 descends and is attached to the heat generating outer wall of the exchanger 1, realize thermal exchange, reach the purpose of accuse temperature, accomodate the air current and with metal heat dissipation frame 6 pressfitting on switch 1 when the coolant liquid gets into through gasbag ball 23, avoid producing the heat dissipation blind spot, after the cooling, utilize light spring 26's elasticity that resets to realize accomodating of metal heat dissipation frame 6 simultaneously, reach the purpose that improves life.
The working principle is as follows: the position of temperature control device 2 is adjusted through sliding adjustment at first for temperature control device 2 moves to concentrated heat production position, has improved temperature control device 2's suitability, and through the rotation of screw rod 7 in screw thread hole 8, the realization is adjusted the height of insulating casing 5, avoids causing the influence to heat abstractor at the slip in-process.
The metal heat dissipation frame 6 is installed in a lifting and sliding mode through the matching of the extension plate 17 and the I-shaped connecting rod 27, the metal heat dissipation frame 6 keeps the upward pressing trend through the light spring 26, the heat dissipation calandria 4 is installed in an inclined mode through the rotating rod 14, then automatic backflow of cooling liquid in the heat dissipation calandria 4 is achieved, the cooling liquid is shunted through the heat dissipation calandria 4, and therefore the purpose of improving the heat dissipation efficiency is achieved.
The micro liquid pump 9, the branch pipe 10, the return pipe 11, the feeding pipe 22, the pumping pipe 21 and the heat conducting inner cavity 18 are used for forming closed-loop pipeline connection, so that cooling liquid circularly flows in the pipeline, the extension and the contraction of the spiral guide pipe 20 are used for adapting to the adjustment of the height of the insulating shell 5, and the folding pipe 24 is used for adapting to the lifting adjustment of the metal heat dissipation frame 6 in the adjusting inner cavity 16.
Through miniature liquid pump 9 with coolant liquid injection heat conduction inner chamber 18 in, thereby make inside unnecessary air current pressfitting on gasbag ball 23, gasbag ball 23 inflation, under the effect of coolant liquid gravity and the inflation extrusion force of gasbag ball 23, realize the extrusion to light spring 26, and then make metal heat dissipation frame 6 descend and laminate on the heat production outer wall of switch 1, realize thermal exchange, reach the purpose of accuse temperature, realize accomodating the air current and with metal heat dissipation frame 6 pressfitting on switch 1 when the coolant liquid gets into through gasbag ball 23, avoid producing the heat dissipation blind spot, after the cooling is finished simultaneously, utilize light spring 26's elasticity that resets to realize accomodating of metal heat dissipation frame 6, reach the purpose that improves life.
The micropump 9 and the exchanger are all common technical devices in the field and are not described in detail.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides an information security network is supplementary accuse temperature subassembly for switch, includes temperature regulating device (2), its characterized in that: the temperature control device (2) is installed on the switch (1) in a sliding insertion mode, an insulating shell (5) is installed at the lower end of the temperature control device (2) in a threaded lifting mode, a plurality of groups of heat dissipation pipe banks (4) formed by transversely extending connecting pipes are installed at the upper end of the temperature control device (2) in a rotating mode, a metal heat dissipation frame (6) with a heat conduction inner cavity (18) is installed in an insertion mode in the inner cavity of the insulating shell (5) in the upper end of the insulating shell (5), the heat conduction inner cavity (18) at the upper end of the metal heat dissipation frame (6) is sealed through a sealing end cover (19), three groups of linearly distributed air bag balls (23) communicated with the heat conduction inner cavity (18) are arranged between the upper end of the sealing end cover (19) and the inner wall of the insulating shell (5), and a feeding pipe (22) and a material pumping pipe (21) extending into the heat conduction inner cavity (18) are vertically inserted into the sealing end cover (19), the feeding pipe (22) and the material pumping pipe (21) are respectively communicated with the heat dissipation calandria (4) through the branch pipe (10) and the return pipe (11).
2. The auxiliary temperature control assembly for information security network switch of claim 1, wherein: the lower extreme of temperature regulating device (2) is provided with screw hole (8), the upper end of insulating casing (5) is vertical to be provided with screw rod (7), and the lower extreme of insulating casing (5) is provided with annular pressure-bearing packing ring (15), screw rod (7) screw thread is rotated and is installed in screw hole (8), pressure-bearing packing ring (15) pressfitting is on the upper end outer wall of switch (1).
3. The auxiliary temperature control assembly for information security network switch of claim 1, wherein: the two ends of the heat dissipation calandria (4) are respectively provided with a bus board (13) and a splitter plate (12), the splitter plate (12) is connected with a plurality of groups of linearly distributed pipes (10), the bus board (13) is connected with a return pipe (11), and the plurality of groups of linearly distributed pipes (10) are provided with a micro liquid pump (9).
4. An auxiliary temperature control module for an information security network switch according to claim 3, characterized in that: be provided with on temperature regulating device (2) and rotate radiating groove (3), both ends are fixed around heat dissipation calandria (4) are provided with bull stick (14), and heat dissipation calandria (4) rotate through bull stick (14) and install in rotating radiating groove (3), and heat dissipation calandria (4) is high in the left and low slope in the right side distributes in rotating radiating groove (3).
5. The auxiliary temperature control assembly for information security network switch of claim 1, wherein: the upper end of insulating casing (5) is provided with a pair of through hole (29) of bilateral symmetry, the upper end of inlet pipe (22) and pumping pipe (21) is followed through hole (29) and is extended to the lower extreme of temperature regulating device (2), and a pair of screw pipe (20) through bilateral symmetry of the upper end of inlet pipe (22) and pumping pipe (21) communicate back flow (11) and branch pipe (10) respectively.
6. The auxiliary temperature control assembly for information security network switch of claim 1, wherein: the circular arc outer wall of metal heat dissipation frame (6) is provided with annular extension board (17), the lower extreme of insulating casing (5) is provided with regulation inner chamber (16) of echelonment, and the position that lies in the ladder inner wall on insulating casing (5) is provided with through-hole (28) that run through from top to bottom, I connecting rod (27) slide along through-hole (28) and run through the grafting on insulating casing (5) and extension board (17), and vertical light spring (26) of having cup jointed on I connecting rod (27), light spring (26) pressfitting is on the lower extreme end plate of the inner wall of adjusting inner chamber (16) and I connecting rod (27).
7. The auxiliary temperature control assembly for information security network switch of claim 6, characterized in that: the feeding pipe (22) and the pumping pipe (21) are fixedly inserted on the sealing end cover (19), the middle sections of the feeding pipe (22) and the pumping pipe (21) are provided with folding pipes (24), and the folding pipes (24) are located in a gap between the inner wall of the adjusting inner cavity (16) and the sealing end cover (19).
8. The auxiliary temperature control component for an information security network switch according to claim 7, wherein: the air bag adjusting device is characterized in that a communication port (25) is formed in the position, corresponding to the air bag ball (23), of the sealing end cover (19), the air bag ball (23) is fixed to the sealing end cover (19), the lower end of the air bag ball (23) is communicated with the heat conduction inner cavity (18) through the communication port (25), and the air bag ball (23) is pressed between the inner wall of the upper end of the adjusting inner cavity (16) and the outer wall of the upper end of the sealing end cover (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111409681.3A CN114007398A (en) | 2021-11-20 | 2021-11-20 | Auxiliary temperature control assembly for information security network switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111409681.3A CN114007398A (en) | 2021-11-20 | 2021-11-20 | Auxiliary temperature control assembly for information security network switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114007398A true CN114007398A (en) | 2022-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111409681.3A Pending CN114007398A (en) | 2021-11-20 | 2021-11-20 | Auxiliary temperature control assembly for information security network switch |
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| Country | Link |
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| CN (1) | CN114007398A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115498777A (en) * | 2022-10-26 | 2022-12-20 | 深圳市弘新精密工业有限公司 | Heat exchange temperature control assembly for new energy power storage case |
-
2021
- 2021-11-20 CN CN202111409681.3A patent/CN114007398A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115498777A (en) * | 2022-10-26 | 2022-12-20 | 深圳市弘新精密工业有限公司 | Heat exchange temperature control assembly for new energy power storage case |
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