Outdoor comprehensive cabinet capable of adjusting space according to size of battery pack
Technical Field
The invention relates to the technical field of outdoor integrated cabinets, in particular to an outdoor integrated cabinet capable of adjusting space according to the size of a battery pack.
Background
Along with the large-area construction of communication base stations in the whole country, the outdoor integrated cabinet is an indispensable component of the base stations, a series of problems which are caused by the fact that the demand is larger and the demand is larger and larger occur, such as high cost, tight delivery and the like.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides an outdoor comprehensive cabinet capable of adjusting the space according to the size of a battery pack, so that the size of a storage battery compartment can be adjusted according to the size of the actual battery pack, and the utilization of the internal space of the comprehensive cabinet is more reasonable.
In order to achieve the purpose, the invention adopts the following technical scheme:
the outdoor comprehensive cabinet capable of adjusting the space according to the size of the battery pack comprises a base, wherein a cabinet body is arranged at the upper part of the base, and rotary doors are symmetrically arranged on the left and right sides of the front side of the cabinet body; c-shaped guide rail plates are symmetrically arranged at the upper part of the rear side wall of the cabinet body, and sliding blocks are arranged in the C-shaped guide rail plates; one end of the sliding block, which is far away from the C-shaped guide rail plate, is penetratingly provided with a puller bolt, and one end of the puller bolt, which is far away from the sliding block, is connected with a guide post; a first mounting plate is arranged between the guide posts, a connecting bolt is arranged on one side of the first mounting plate, which is far away from the guide posts, and the connecting bolt penetrates through the first mounting plate and is in threaded connection with the guide posts; the upper end of the inner cavity of the cabinet body, which is provided with a first partition plate, is provided with a groove, and the first partition plate is symmetrically provided with stepped mounting holes communicated with the groove; a guide rod is inserted into the stepped mounting hole, and a first spring is sleeved on the outer side of the guide rod; the upper parts of the two first springs are provided with top plates, and the lower parts of the top plates are fixedly connected with guide rods; a mounting through groove is formed in the right side of the cabinet body, a second mounting plate is arranged in the mounting through groove, and a gas channel is formed in the second mounting plate; an exhaust fan is arranged on the right side of the second mounting plate, and a protective cover matched with the mounting through groove is sleeved on the outer side of the exhaust fan; a second partition plate is arranged on the right side of the inner cavity of the cabinet body, a one-way air inlet valve penetrates through one side of the upper portion of the second partition plate, and a first mounting groove is formed in the middle of the upper surface of the second partition plate; a first rotating shaft is arranged in the first mounting groove, and a first gear is sleeved on the outer side of the first rotating shaft; first racks matched with the first gears are symmetrically arranged in the first mounting grooves, push rods are connected to the ends, far away from the first gears, of the two first racks, and pin shafts are symmetrically arranged on the upper surfaces of the push rods; a first cover plate is arranged at an opening of the first mounting groove, and an automatic locking mechanism matched with the first rotating shaft is arranged on the upper surface of the first cover plate; the upper ends of two adjacent pin shafts penetrate through the first cover plate, and a sliding plate is connected between the two adjacent pin shafts; the upper surface of the cabinet body is symmetrically provided with the ventilating fans, and the edge of the upper surface of the cabinet body is provided with the protection plate; the vent has been seted up to the guard plate left and right sides, and vent department is fixed to be provided with the heat dissipation shutter plate, and the upper portion of guard plate is provided with dash board.
Preferably, a second mounting groove is formed in one side of the first partition plate, and a slot for communicating the groove with the second mounting groove is formed in the upper portion of the first partition plate; a second rotating shaft is rotatably arranged in the second mounting groove, and a second gear is sleeved on the outer side of the second rotating shaft; a second rack matched with the second gear is arranged in the slot, and the upper end of the second rack penetrates through the slot and then is fixedly connected with the top plate; the second cover plate is sleeved on the outer side of one end, far away from the second mounting groove, of the second rotating shaft, and the second cover plate is fixedly connected with the first partition plate.
Preferably, the outer side of one end of the second rotating shaft, which is far away from the second cover plate, is uniformly provided with a guide groove, and one end of the second rotating shaft, which is far away from the second cover plate, is sleeved with an internal spline conical sleeve; mounting holes are symmetrically formed in the outer side of the inner spline conical sleeve, an ejection spring is arranged in each mounting hole, and a positioning steel ball is arranged on one side, far away from each mounting hole, of each ejection spring; a conical groove matched with the conical sleeve of the internal spline is formed in one side of the second cover plate, and a friction plate is embedded in the conical groove; the outer side of the inner spline conical sleeve is sleeved with an installation sleeve, the installation sleeve is fixedly connected with the second cover plate through threads, and the inner side of the installation sleeve is provided with a positioning groove matched with the positioning steel ball; one end of the mounting sleeve is provided with a push-pull sleeve matched with the second rotating shaft in a penetrating mode.
Preferably, the front sides of the two sliding plates are both provided with first sliding chutes, and second springs are uniformly arranged in the first sliding chutes; a first push plate with an I-shaped cross section is arranged on one side, away from the first sliding groove, of the second spring, and a first sealing gasket is arranged on one side, away from the second spring, of the first push plate; a second sliding groove is formed in the front side of the second partition plate, and third springs are uniformly arranged in the second sliding groove; and a second push plate with an I-shaped cross section is arranged on one side, away from the second sliding groove, of the third spring, and a second sealing gasket is arranged on one side, away from the third spring, of the second push plate.
Preferably, the cross section of the exhaust through groove of the protective cover is in a right trapezoid shape; a third rotating shaft is uniformly arranged in the exhaust through groove of the protective cover, and a rotating plate is sleeved on the outer side of the third rotating shaft; the exhaust of protection casing leads to the inslot and evenly is provided with the stopper, and the cross-section of stopper is three horn shapes.
Preferably, the automatic locking mechanism comprises a jacking spring, a guide strip, a stepped sliding sleeve, a wear-resistant rubber sleeve, a fixing plate, an inserted link and an annular pull plate; a stepped sliding sleeve is sleeved on the outer side of the upper end of the first rotating shaft, and guide strips are uniformly arranged on the outer side of the upper end of the stepped sliding sleeve; the outer side of the upper end of the stepped sliding sleeve is sleeved with a jacking spring, and the upper end of the stepped sliding sleeve penetrates through the first cover plate and is connected with an annular pull plate; a fixing plate is arranged on one side of the upper surface of the first cover plate, and an inserting rod is arranged on one side of the fixing plate; a positioning slot matched with the inserted rod is formed in the outer side of the stepped sliding sleeve, and the lower end of the stepped sliding sleeve is connected with a wear-resistant rubber sleeve; the upper surface of the first gear is subjected to sanding treatment.
Preferably, the first mounting plate is evenly provided with air leakage through holes, and one side of the first mounting plate, which is close to the C-shaped guide rail plate, is evenly provided with cooling fins.
Preferably, the outer side of the protective cover is sleeved with a tensioning sleeve, and the tensioning sleeve is provided with a rubber sealing strip close to the side face of the protective cover; the tensioning sleeve is fixedly connected with the cabinet body through a connecting screw.
Preferably, third sealing gaskets are embedded in the side faces, attached to the cabinet body, of the sliding plate and the second partition plate; fourth sealing gaskets are inlaid in the front side and the rear side of the first partition plate.
The outdoor comprehensive cabinet capable of adjusting the space according to the size of the battery pack has the advantages that:
1. through the roof of the liftable that sets up on first baffle for first baffle can be at the internal free slip of cabinet, makes the cavity of the cabinet body can adjust according to the in-service use needs.
2. The sliding blocks are symmetrically arranged on the second partition plate, so that the size of the storage battery compartment divided by the second partition plate and the sliding plate can be adjusted.
3. Through the exhaust fan that sets up in one side of the battery compartment that second baffle and slide were cut apart out, the harmful gas of the battery group during operation release of being convenient for discharge avoids harmful gas to electrical equipment's infringement.
Drawings
Fig. 1 is a schematic front view of an outdoor integrated cabinet capable of adjusting space according to the size of a battery pack according to the present invention;
fig. 2 is a schematic front view of an outdoor integrated cabinet according to the present invention, which is capable of adjusting the space according to the size of the battery pack;
FIG. 3 is a right side view of an outdoor unit according to the present invention, in which the space is adjusted according to the size of a battery pack;
FIG. 4 is a schematic view of a main cross-section of an outdoor unit according to the present invention, wherein the space of the outdoor unit is adjustable according to the size of the battery pack;
FIG. 5 is a schematic cross-sectional view of the position A of the outdoor unit according to the present invention, wherein the space is adjustable according to the size of the battery pack;
FIG. 6 is a schematic cross-sectional view of a portion B of an outdoor unit according to the present invention, wherein the space of the outdoor unit is adjustable according to the size of the battery pack;
fig. 7 is a schematic cross-sectional view of the outdoor unit with space adjustable according to the size of the battery pack according to the present invention at position C;
fig. 8 is a schematic cross-sectional view of an outdoor integrated cabinet with space adjustable according to the size of a battery pack according to the present invention at position D;
fig. 9 is an enlarged schematic structural view of a portion E of an outdoor integrated cabinet according to the present invention, wherein the space of the outdoor integrated cabinet can be adjusted according to the size of a battery pack;
fig. 10 is an enlarged schematic structural view of a portion F of an outdoor integrated cabinet according to the present invention, wherein the space of the outdoor integrated cabinet can be adjusted according to the size of a battery pack;
fig. 11 is an enlarged schematic structural view of a portion G of an outdoor integrated cabinet according to the present invention, wherein the space of the outdoor integrated cabinet can be adjusted according to the size of a battery pack;
fig. 12 is an enlarged schematic view of a portion H of an outdoor integrated cabinet according to the present invention, wherein the space of the outdoor integrated cabinet can be adjusted according to the size of the battery pack.
In the figure: the base 1, the cabinet 2, the revolving door 3, the C-shaped guide rail plate 4, the slider 5, the puller bolt 6, the guide post 7, the first mounting plate 8, the connecting bolt 9, the heat sink 10, the first partition 11, the stepped mounting hole 12, the guide bar 13, the first spring 14, the top plate 15, the second mounting plate 16, the exhaust fan 17, the protective cover 18, the second partition 19, the first mounting groove 20, the first rotating shaft 21, the first gear 22, the first rack 23, the push rod 24, the pin shaft 25, the first cover plate 26, the automatic locking mechanism 27, the puller spring 270, the guide bar 271, the stepped sliding sleeve 272, the wear-resistant rubber sleeve 273, the fixed plate 274, the inserted bar 275, the annular pull plate 276, the sliding plate 28, the ventilation fan 29, the protective plate 30, the heat dissipation louver plate 31, the rain shielding plate 32, the second mounting groove 33, the second rotating shaft 34, the second gear 35, the second rack 36, the second cover plate 37, the inner spline 38, the inner taper sleeve 39, the ejector spring 39, The device comprises a positioning steel ball 40, a friction plate 41, an installation sleeve 42, a push-pull sleeve 43, a second spring 44, a first push plate 45, a first sealing gasket 46, a third spring 47, a second push plate 48, a second sealing gasket 49, a third rotating shaft 50, a rotating plate 51, a limiting block 52, a tensioning sleeve 53, a rubber sealing strip 54, a third sealing gasket 55, a fourth sealing gasket 56 and a one-way air inlet valve 57.
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.
Referring to fig. 1-12, an outdoor integrated cabinet capable of adjusting space according to the size of a battery pack comprises a base 1, a cabinet body 2 is arranged on the upper portion of the base 1, a revolving door 3 is symmetrically arranged on the left and right of the front side of the cabinet body 2, a C-shaped guide rail plate 4 is symmetrically arranged on the upper portion of the rear side wall of the cabinet body 2, a slider 5 is arranged in the C-shaped guide rail plate 4, a puller bolt 6 is arranged at one end of the slider 5 far away from the C-shaped guide rail plate 4 in a penetrating manner, a guide post 7 is connected with one end of the puller bolt 6 far away from the slider 5, a first mounting plate 8 is arranged between the guide posts 7, a connecting bolt 9 is arranged at one side of the first mounting plate 8 far away from the guide post 7, the connecting bolt 9 penetrates through the first mounting plate 8 to be in threaded connection with the guide post 7, air leakage through holes are uniformly arranged on the first mounting plate 8, cooling fins 10 are uniformly arranged at one side of the first mounting plate 8 close to the C-shaped guide rail plate 4, and can slide on the C-shaped guide rail plate 4 through the slider 5, make the position of first mounting panel 8 can adjust as required, fin 10 through the rear side setting of first mounting panel 8 simultaneously is convenient for install the heat dissipation of the electrical equipment on first mounting panel 8.
The upper end that the inner chamber of the cabinet body 2 was provided with first baffle 11 is seted up flutedly, ladder mounting hole 12 that is linked together with the recess is seted up to first baffle 11 symmetry, the interpolation of ladder mounting hole 12 is equipped with guide bar 13, guide bar 13 outside cover is equipped with first spring 14, the upper portion of two first springs 14 is provided with roof 15, the lower part and the guide bar 13 of roof 15 are connected fixedly, the elasticity through first spring 14 promotes roof 15 and upwards extrudees the cabinet body 2, thereby make the position of first baffle 11 fixed.
A second mounting groove 33 is formed in one side of the first partition plate 11, a slot for communicating the groove with the second mounting groove 33 is formed in the upper portion of the first partition plate 11, a second rotating shaft 34 is rotatably arranged in the second mounting groove 33, a second gear 35 is sleeved outside the second rotating shaft 34, a second rack 36 matched with the second gear 35 is arranged in the slot, the upper end of the second rack 36 passes through the slot and then is fixedly connected with the top plate 15, a second cover plate 37 is sleeved outside one end of the second rotating shaft 34 far away from the second mounting groove 33, the second cover plate 37 is fixedly connected with the first partition plate 11, a guide groove is uniformly formed in the outer side of one end of the second rotating shaft 34 far away from the second cover plate 37, an inner spline tapered sleeve 38 is sleeved on one end of the second rotating shaft 34 far away from the second cover plate 37, mounting holes are symmetrically formed in the outer side of the inner spline tapered sleeve 38, an ejection spring 39 is arranged in the mounting holes, and a positioning steel ball 40 is arranged on one side of the ejection spring 39 far away from the mounting holes, one side of the second cover plate 37 is provided with a conical groove matched with the inner spline conical sleeve 38, a friction plate 41 is embedded in the conical groove, the outer side of the inner spline conical sleeve 38 is sleeved with a mounting sleeve 42, the mounting sleeve 42 is fixedly connected with the second cover plate 37 through threads, the inner side of the mounting sleeve 42 is provided with a positioning groove matched with a positioning steel ball 40, one end of the mounting sleeve 42 is provided with a push-pull sleeve 43 matched with the second rotating shaft 34 in a penetrating manner, the second rotating shaft 34 drives the second gear 35 to rotate clockwise, and the second gear 35 and the second rack 36 are engaged and driven, so that the second rack 36 drives the top plate 15 to slide downwards to be separated from the top of the cabinet body 2, meanwhile, the inner spline conical sleeve 38 is pushed to slide towards the second cover plate 37, the positioning steel ball 40 is pushed to slide into the positioning groove by the ejecting spring 39, and the inner spline conical sleeve 38 is kept to be tightly attached to the friction plate 41, by using the static friction force between the friction plate 41 and the tapered sleeve 38 with internal splines, the second rotating shaft 34 is fixed and is not easy to rotate, so that the top plate 15 is kept to be contracted in the first separating plate 11, and the first separating plate 11 is convenient to move and adjust in the cabinet 2.
The installation logical groove has been seted up on the right side of the cabinet body 2, the logical inslot of installation is provided with second mounting panel 16, gas passage has been seted up to second mounting panel 16, the right side of second mounting panel 16 is provided with air discharge fan 17, the outside cover of air discharge fan 17 is equipped with leads to groove assorted protection casing 18 with the installation, the outside cover of protection casing 18 is equipped with tight cover 53 that rises, tight cover 53 that rises is close to protection casing 18 side and is provided with rubber seal 54, it is fixed with cabinet body 2 to pass through connecting screw and the tight cover 53 that rises, the battery compartment that isolates out through air discharge fan 17 to second baffle 19 exhausts, make the harmful gas that the battery during operation produced be convenient for discharge, and then avoid the harmful gas that produces to cause the destruction to the electrical equipment of the internal installation of cabinet body 2.
A second partition plate 19 is arranged on the right side of the inner cavity of the cabinet body 2, a one-way air inlet valve 57 is arranged on one side of the upper portion of the second partition plate 19 in a penetrating manner, a first mounting groove 20 is formed in the middle of the upper surface of the second partition plate 19, a first rotating shaft 21 is arranged in the first mounting groove 20, a first gear 22 is sleeved on the outer side of the first rotating shaft 21, first racks 23 matched with the first gear 22 are symmetrically arranged in the first mounting groove 20, push rods 24 are connected to the ends, away from the first gear 22, of the two first racks 23, a pin shaft 25 is symmetrically arranged on the upper surface of each push rod 24, a first cover plate 26 is arranged at an opening of the first mounting groove 20, an automatic locking mechanism 27 matched with the first rotating shaft 21 is arranged on the upper surface of the first cover plate 26, the automatic locking mechanism 27 comprises a jacking spring 270, a guide strip 271, a stepped sliding sleeve 272, an abrasion-resistant rubber sleeve 273, a fixing plate 274, an inserted rod 275 and an annular pulling plate 276, a step sliding sleeve 272 is sleeved on the outer side of the upper end of the first rotating shaft 21, guide bars 271 are uniformly arranged on the outer side of the upper end of the step sliding sleeve 272, a tightening spring 270 is sleeved on the outer side of the upper end of the step sliding sleeve 272, the upper end of the step sliding sleeve 272 penetrates through the first cover plate 26 and is connected with an annular pull plate 276, a fixed plate 274 is arranged on one side of the upper surface of the first cover plate 26, an inserted rod 275 is arranged on one side of the fixed plate 274, a positioning slot matched with the inserted rod 275 is formed in the outer side of the step sliding sleeve 272, a wear-resistant rubber sleeve 273 is connected to the lower end of the step sliding sleeve 272, the upper surface of the first gear 22 is subjected to frosting treatment, a sliding plate 28 is connected between the upper ends of two adjacent pin shafts 25 penetrating through the first cover plate 26, the first gear 22 is driven to rotate by the first rotating shaft 21, and is subjected to meshing transmission between the first gear 22 and the first rack 23, so that the two first racks 23 synchronously slide towards each other, and the push rods 24 synchronously slide towards each other, the drive of round pin axle 25 makes slide 28 slide along second baffle 19 surface, thereby make two slides 28 extrude to both sides, thereby make the position of second baffle 19 fixed, and then make the size that can adjust the battery compartment according to the group battery size, promote ladder sliding sleeve 272 and slide down along first pivot 21 through the elasticity of top tension spring 270 simultaneously, thereby make the abrasive rubber cover 273 and first gear 22 closely laminate, utilize the static friction force between the dull polish surface of abrasive rubber cover 273 lower part and first gear 22, make first gear 22 difficult rerotation again, and then make the fixed inconvenience in position of second baffle 19 and slide 28.
The front sides of the two sliding plates 28 are respectively provided with a first sliding groove, a second spring 44 is uniformly arranged in the first sliding groove, one side of the second spring 44, which is far away from the first sliding groove, is provided with a first push plate 45 with an I-shaped cross section, one side of the first push plate 45, which is far away from the second spring 44, is provided with a first sealing gasket 46, the front side of the second partition plate 19 is provided with a second sliding groove, a third spring 47 is uniformly arranged in the second sliding groove, one side of the third spring 47, which is far away from the second sliding groove, is provided with a second push plate 48 with an I-shaped cross section, one side of the second push plate 48, which is far away from the third spring 47, is provided with a second sealing gasket 49, the sliding plates 28 and the second partition plate 19 are respectively inlaid with a third sealing gasket 55 on the attaching side of the cabinet body 2, the front and rear sides of the first partition plate 11 are respectively inlaid with a fourth sealing gasket 56, the first push plate 45 is pushed by the elasticity of the second spring 44 to slide towards the direction of the revolving door 3, so that the first sealing gasket 46 is tightly attached to the surface of the revolving door 3, meanwhile, the second push plate 48 is pushed by the elasticity of the third spring 47 to slide towards the direction of the revolving door 3, so that the second gasket 49 is tightly attached to the surface of the revolving door 3, and further, the battery compartment forms a sealed chamber through the sealing action of the third gasket 55 and the fourth gasket 56.
The upper surface symmetry of the cabinet body 2 is provided with scavenger fan 29, and the upper surface edge of the cabinet body 2 is provided with guard plate 30, and the vent has been seted up to the guard plate 30 left and right sides, and vent department is fixed and is provided with heat dissipation shutter plate 31, and the upper portion of guard plate 30 is provided with dash board 32, extracts the change through scavenger fan 29 to the gas in the cabinet body 2 to the mobility of the internal gas of cabinet with higher speed, thereby be convenient for the quick heat dissipation of the electrical equipment in the cabinet body 2.
The logical cross-section of exhaust groove of protection casing 18 is right trapezoid, the logical inslot of exhaust of protection casing 18 evenly is provided with third pivot 50, the outside cover of third pivot 50 is equipped with changes board 51, the logical inslot of exhaust of protection casing 18 evenly is provided with stopper 52, stopper 52's cross-section is three horn shapes, the during operation combustion gas through exhaust fan 17 promotes to change board 51 and uses third pivot 50 to rotate as the axle, thereby make the logical groove of exhaust open the exhaust, simultaneously through stopper 52 to blockking of board 51, make change the state that board 51 still is in the slope after the upset, and then avoid the rainwater to enter into in the protection casing 18.
The working principle is as follows: during assembly, the push-pull sleeve 43 is moved in a direction away from the mounting sleeve 42 to drive the internal spline taper sleeve 38 to separate from the taper groove, the second rotating shaft 34 is used to drive the second gear 35 to rotate clockwise, the second gear 35 and the second rack 36 are in meshing transmission, so that the second rack 36 drives the top plate 15 to slide downwards to separate from the top of the cabinet body 2, meanwhile, the internal spline taper sleeve 38 is pushed to slide towards the second cover plate 37 again, the positioning steel balls 40 are pushed to slide into the positioning groove by the ejection springs 39, the internal spline taper sleeve 38 and the friction plate 41 are kept in close fit, the second rotating shaft 34 is fixed and is not easy to rotate by the static friction force between the friction plate 41 and the internal spline taper sleeve 38, the top plate 15 is kept contracted in the first partition plate 11, the first partition plate 11 is moved to an actually required position, and finally, the push-pull sleeve 43 is moved in a direction away from the mounting sleeve 42, the second rotating shaft 34 can rotate again, the top plate 15 is pushed by the elasticity of the first spring 14 to extrude the cabinet body 2 upwards, so that the position of the first partition plate 11 is fixed, the reuse slider 5 can slide on the C-shaped guide rail plate 4, so that the position of the first mounting plate 8 can be adjusted according to actual needs, meanwhile, the heat dissipation of the electrical equipment mounted on the first mounting plate 8 is facilitated by the heat dissipation fins 10 arranged at the rear side of the first mounting plate 8, the first rotating shaft 21 is used for driving the first gear 22 to rotate, the two first racks 23 synchronously slide towards each other through the meshing transmission between the first gear 22 and the first rack 23, the push rods 24 synchronously slide towards each other, the sliding plates 28 slide along the surface of the second partition plate 19 through the driving of the pin shaft 25, so that the two sliding plates 28 extrude towards two sides, so that the position of the second partition plate 19 is fixed, and then make the size that can adjust the battery compartment according to the group battery size, promote ladder sliding sleeve 272 through the elasticity of top tight spring 270 simultaneously and slide down along first pivot 21 to make wear-resisting rubber sleeve 273 and first gear 22 closely laminate, utilize the static friction power between the dull polish surface of wear-resisting rubber sleeve 273 lower part and first gear 22, make first gear 22 be difficult for the rethread, and then make the position fixing of second baffle 19 and slide 28 inconvenient.
During operation, the ventilation fan 29 is used for extracting and replacing the gas in the cabinet body 2, so as to accelerate the fluidity of the gas in the cabinet body 2, thereby facilitating the rapid heat dissipation of the electrical equipment in the cabinet body 2, and meanwhile, the exhaust fan 17 is used for exhausting the storage battery compartment isolated by the second partition plate 19, so that the harmful gas generated during the operation of the storage battery is convenient to exhaust, thereby avoiding the damage of the generated harmful gas to the electrical equipment installed in the cabinet body 2, meanwhile, the exhaust gas during the operation of the exhaust fan 17 pushes the rotating plate 51 to rotate by taking the third rotating shaft 50 as a shaft, thereby opening the exhaust through groove for exhausting, meanwhile, the rotating plate 51 is blocked by the limiting block 52, so that the rotating plate 51 is still in an inclined state after being overturned, thereby preventing rainwater from entering the protective cover 18, and simultaneously, the air inlet check valve 57 is opened by using the negative pressure formed after the exhaust of the storage battery compartment, so that the gas in the cabinet body 2 enters the battery compartment.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.