CN213878992U - Block terminal that radiating effect is good - Google Patents

Abstract

The utility model discloses a block terminal that radiating effect is good, including distributing the power frame, locating box on the power frame, locating chamber door on the box, locating the top eaves at box top and locating cooling system on the box, its characterized in that: the heat dissipation system comprises a blowing device for driving internal air to flow in an accelerated manner, an air cooling device for accelerating the heat dissipation of the inner wall of the box body and an energy part for providing a power source for system operation, wherein the blowing device comprises a blowing motor arranged at the bottom of the box body, a blowing fan arranged on the motor and a flow distribution plate for dispersing the airflow of the blowing fan, the flow distribution plate is arranged in an arc manner and covers the blowing fan, and a plurality of air blowing holes are formed in the flow distribution plate along the arc surface; through cooling system's setting can improve the radiating effect through the fan of blowing air flow with higher speed, guarantees the normal operating of block terminal.

Description

Block terminal that radiating effect is good

Technical Field

The utility model belongs to the technical field of the block terminal, especially, relate to a block terminal that radiating effect is good.

Background

The distribution box is a low-voltage distribution device formed by assembling switch equipment, measuring instruments, protective electrical appliances and auxiliary equipment in a closed or semi-closed metal cabinet or on a screen according to the electrical wiring requirement. In normal operation, the circuit can be switched on or off by means of a manual or automatic switch. When the fault or abnormal operation occurs, the circuit is cut off or an alarm is given by the aid of the protective electric appliance. The measuring instrument can display various parameters in operation, and can also adjust some electrical parameters to prompt or send out signals for deviation from normal working state. It is commonly used in various power generation, distribution and transformation substations.

And the block terminal can give off a large amount of heats at the during operation, so need carry out the heat dissipation processing to the block terminal, but traditional block terminal often is through seting up the mode that has the aperture on the box to dispel the heat to the block terminal through the mode that the air naturally flows, obviously, this kind of radiating rate is too slow, and the effect is not good enough often to satisfy the heat dissipation needs when electric elements high speed operation.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an overcome prior art not enough, provide a radiating rate is fast, the block terminal that the radiating effect is good that the heat dissipation needs when can satisfying the high operation of electrical element.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a block terminal that radiating effect is good, includes the distribution frame, locates box on the distribution frame, locate chamber door on the box, locate the eaves on the box top and locating cooling system on the box, cooling system is including being used for driving the internal air blast apparatus that flows with higher speed, being used for accelerating the radiating air cooling device of box inner wall and being used for providing the energy spare of system's moving power supply, blast apparatus is including locating the blower motor of bottom half, locating fan and being used for with of blowing on the motor blow the air current dispersion's of fan flow distribution plate, the distribution plate is the arc setting and covers and locates fan top of blowing is equipped with a plurality of gas holes along the cambered surface on it.

Through cooling system's setting can improve the radiating effect through the fan of blowing air flow with higher speed, guarantees the normal operating of block terminal.

Preferably, the air cooling device is including locating air-cooled pipeline in the box inner wall, locating converge the chamber in the eave, be used for with converge intracavity air current discharge to external blast pipe, be used for with converge intracavity air extraction's exhaust fan and be used for the drive exhaust fan pivoted air exhaust motor, converge the chamber with air-cooled pipeline intercommunication, converge the intracavity wall and be the cambered surface setting, the blast pipe converge the chamber intercommunication, the exhaust fan is located in the blast pipe, the bottom in converging the chamber be equipped with the through-hole of the inside intercommunication of box.

Through air cooling device's setting, can drive inside air and flow out fast through extraction fan's drive to inside thermal discharge improves the radiating effect of block terminal with higher speed, guarantees the normal operation of block terminal.

Preferably, the forced air cooling pipeline is including locating be responsible for in the box lateral wall and locate be responsible for last branch pipe spare, branch pipe spare including be used for with be responsible for with communicating pipe of chamber intercommunication converges, be used for holding in the box steam enters into the trachea, be used for with external heat exchange's outlet duct, be used for with go into the trachea with the connecting pipe of outlet duct intercommunication, be used for go into the trachea with be responsible for the connecting pipe of intercommunication and be used for according to external humidity with the regulating assembly who controls the branch pipe spare in the air leads to the end.

Through the setting of forced air cooling pipeline, can be through the flow of air, will heat in the box lateral wall is taken away fast, improves the radiating effect of block terminal.

Preferably, the position of the air inlet pipe is higher than that of the air outlet pipe, a dust filter cover for preventing dust from entering is embedded in the air outlet pipe, and a plurality of dust filter holes only allowing air to enter and exit are formed in the dust filter cover.

Through the difference in height setting of income trachea and outlet duct and the setting of dust filter, can restrict the dust and get into the block terminal in, guarantee the operational environment of block terminal in order to realize the normal operating and the radiating effect of equipment.

Preferably, the adjusting part includes the humidity transducer who is used for detecting humidity, locates working hole in the box inner wall, wear to locate dwang in the working hole, locating baffle leaf on the dwang, be used for the drive dwang pivoted rotation motor and be used for absorbing the moisture absorption component of moisture in the forced air cooling pipeline, the working hole with the connecting pipe intercommunication, the dwang is worn to locate just penetrate in the working hole in the connecting pipe, the baffle leaf is located the dwang is located pole section in the connecting pipe.

Through adjusting part's setting, when outside air humidity is too big or when raining, accessible baffle leaf blocks that outside air directly gets into in the box to guarantee the operational environment of block terminal, avoid moisture to produce the influence to the working element operation.

Preferably, the moisture absorption component includes the moisture absorption cotton, is used for supplying the moisture by the cotton absorptive suction hole of moisture absorption, be used for with the cotton removable the being fixed in of moisture absorption installation component in the dwang, the moisture absorption cotton is located in the dwang, the suction hole is seted up in on the dwang.

Through the setting of moisture absorption component, can be with the moisture absorption in getting into the outlet pipe, reduce in the moisture gets into the box, guarantee the normal operating of work component.

Preferably, the installation element comprises a guide screw rod penetrating into the moisture absorption cotton, a thread cover in threaded connection with one end of the rotating rod and a nut arranged on the other end of the rotating rod, the thread cover is in threaded connection with the rotating rod and in threaded connection with the rotating rod, and the guide screw rod penetrates out of the thread cover and is fixedly connected with a pull ring at the penetrating end; the nut is in threaded connection with the guide screw rod, one end of the nut abuts against the end face of the rotating rod, the guide screw rod penetrates through the nut, and the penetrating end of the guide screw rod is in a sharp-horn shape; the nut is provided with a connecting cylinder, the connecting cylinder is covered on the penetrating end of the guide screw rod, and one end of the connecting cylinder is fixedly connected to an extending shaft of the rotating motor; and the connecting cylinder is provided with a peephole for observing the position of the guide screw in the connecting cylinder.

Through the setting of installation component, can get the dress moisture absorption cotton through lead screw's drive, quick replacement to through the restriction of nut and screw thread cover, fix the moisture absorption cotton, thereby improve the quick and convenient of the cotton dismouting of moisture absorption.

Preferably, the box door is provided with a rotating piece for rotatably connecting the box door to the box body, the box door is provided with a moisture-proof assembly for limiting moisture from entering the box body, the moisture-proof assembly comprises a fastening member for limiting the moisture from entering the box body from the rotary joint of the box door and the box body, a sealing strip for limiting the moisture from entering the box door from the upper and lower door seams and a movable stop block member arranged on the side wall of the box door, and the sealing strip is embedded in the upper and lower end faces of the box door; the lock joint component is including locating the arc platform on the door frame of box, locating arc wall on the chamber door, locating draw-in groove on the arc platform lateral wall, locating moisture absorption strip in the draw-in groove and locating card platform on the chamber door, the arc bench parcel have wear-resisting sealing glue layer and its can cooperate the joint in the arc wall, but card platform joint income just extrude in the draw-in groove in on the moisture absorption strip.

Through the setting of dampproofing subassembly, can restrict moisture and get into in the box from the crack, guarantee the inside operational environment of block terminal in order to realize the normal operating of work component in the block terminal.

Preferably, the movable stop member comprises a rotating shaft penetrating through the inside of the box door, a rotating handle arranged on the rotating shaft and positioned on the outer wall side of the box door, a driving rocker arranged on the other end of the rotating shaft, a connecting rod hinged on the driving rocker, a movable stop block used for limiting moisture entering from a door gap and a driven rocker used for limiting the motion trail of the connecting rod, wherein one end of the driven rocker is hinged on the connecting rod, and the other end of the driven rocker is rotatably connected on the box door; the movable stop block is provided with a push groove, and the connecting rod is clamped in the push groove in a matching manner.

Through the arrangement of the movable stopper, when the rotation limiting box door is opened by rotating, the movable stopper is stopped behind a door gap to limit moisture from entering the distribution box, so that the working environment inside the distribution box is ensured to realize the normal operation of working elements in the distribution box.

Preferably, one end of the connecting rod, which is close to the door frame of the box body, is provided with a limiting block, the door frame on the box body is provided with a limiting groove, and the limiting block penetrates through the movable stop block and can be clamped in the limiting groove.

Through the setting of stopper and spacing groove, can further restrict the position of activity shelves strip, guarantee to stopping of crack, restriction moisture gets into in the block terminal.

In conclusion, through the arrangement of the heat dissipation system, the air flow can be accelerated through the blowing fan, the heat dissipation effect is improved, and the normal operation of the distribution box is ensured; through the arrangement of the air cooling device, the air in the distribution box can be driven to flow out quickly, so that the discharge of internal heat is accelerated, the heat dissipation effect of the distribution box is improved, and the normal operation of the distribution box is ensured; through the height difference arrangement of the air inlet pipe and the air outlet pipe and the arrangement of the dust filter, dust can be limited from entering the distribution box, and the working environment of the distribution box is ensured to realize the normal operation and the heat dissipation effect of equipment; the moisture absorption component is arranged, so that moisture entering the air outlet pipe can be absorbed, the moisture entering the box body is reduced, and the normal operation of the working element is ensured; the installation element can improve the rapidness and convenience of the assembly and disassembly of the moisture absorption cotton; through the setting of dampproofing subassembly, can restrict moisture and get into in the box from the crack, guarantee the inside operational environment of block terminal in order to realize the normal operating of work component in the block terminal.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a first schematic sectional view of the bottom of the present invention.

Fig. 3 is a partially enlarged view of a portion a in fig. 2.

Fig. 4 is a partially enlarged view of fig. 3 at B.

Fig. 5 is a second schematic sectional view of the back of the door of the present invention.

Fig. 6 is a partially enlarged view of C in fig. 5.

Fig. 7 is a partial enlarged view of fig. 6 at D.

Fig. 8 is a second schematic cross-sectional view of the present invention at the side wall.

Fig. 9 is a partial enlarged view of F in fig. 8.

Fig. 10 is a partial enlarged view at G in fig. 8.

Fig. 11 is a partial enlarged view of fig. 8 at H.

Fig. 12 is a partial enlarged view at I in fig. 11.

Fig. 13 is a third schematic sectional view of the present invention at the side wall.

Fig. 14 is a fourth schematic sectional view of the present invention at the side wall.

Fig. 15 is a partial enlarged view at J in fig. 14.

Fig. 16 is a fifth schematic sectional view of the utility model at the back of the door.

Fig. 17 is a partial enlarged view at E in fig. 16.

Detailed Description

As shown in fig. 1 to 17, a distribution box with a good heat dissipation effect includes a distribution frame 1, a box body 11, a box door 13, a top eaves 14 and a heat dissipation system, wherein the box body 11 is provided with a rotating member 15, the rotating member 15 is a hinge, one end of the hinge is fixed on the box body 11 through a screw thread, the other end of the hinge is fixed on the box door 13 through a screw thread, the top eaves 14 is arranged at the bottom of the box body 11, and the box body 11 is arranged on the distribution frame 1; the heat dissipation system comprises a blowing device, an air cooling device and an energy source piece 16, wherein the energy source piece 16 is a solar panel arranged on the top of the top eave 14.

Furthermore, a moisture-proof assembly is arranged on the box door 13, the moisture-proof assembly comprises a fastening member, a sealing strip 131 and a movable stop member, and the sealing strip is embedded in the upper end surface and the lower end surface of the box door 13; the fastening component comprises an arc-shaped table 171, an arc-shaped groove 172, a clamping groove 173, a moisture absorption strip 174 and a clamping table 175, the arc-shaped table 171 is positioned on the door frame of the box body 11 and is wrapped with a wear-resistant sealant layer, the arc-shaped groove 172 is arranged on the box door 13, the arc-shaped table 171 can be clamped in the arc-shaped groove 172 in a matching manner, and the arc-shaped table 171 is wrapped with the wear-resistant sealant layer; the clamping table is arranged on the box door 13 and is positioned at the opening part of the arc-shaped groove 172, the clamping groove 173 is arranged on the side wall of the arc-shaped table 171, the moisture absorption strip 174 is embedded in the clamping groove, and the moisture absorption strip 174 can be absorbent cotton; the clamp can be clamped into the clamp groove 173 and pressed on the moisture absorption strip 174.

The movable block member comprises a rotating shaft 181, a rotating handle 182, a driving rocker 183, a connecting rod 184, a movable stop block and a driven rocker 186, the rotating shaft 181 penetrates through the box door 13, the rotating handle 182 is fixedly connected to one end of the rotating shaft located outside the box body 11, and the connecting rod 184 is hinged to the other end of the rotating shaft; the two driven rocker arms 186 are arranged at two sides of the driving rocker arm 183, one end of each driven rocker arm is hinged to the connecting rod 184, and the other end of each driven rocker arm is rotatably connected to the box door 13; the movable stopper 185 is provided with a push groove, and the connecting rod 184 is clamped in the push groove in a matching manner.

Furthermore, a limit block 187 is welded to one end of the connecting rod 184 close to the door frame of the box body 11, a limit groove 188 is formed in the door frame of the box body 11, and the limit block 187 penetrates through the movable stopper 185 and can be clamped in the limit groove 188.

Specifically, blast apparatus includes blower motor 21, the fan 22 of blowing and flow distribution plate 23, blower motor 21 rigid coupling in the box 11 bottom, the fan 22 rigid coupling of blowing in on blower motor 21's the projecting shaft, flow distribution plate 23 be the arc setting and its lateral wall rigid coupling in on the box 11 internal face, be equipped with a plurality of gas holes 231 and cover along the cambered surface on it and locate the fan 22 top of blowing.

Specifically, air cooling device includes the forced air cooling pipeline, converges chamber 31, blast pipe 32, extraction fan 33 and air exhaust motor 34, converge chamber 31 locates in the eave 14, its inner wall is the cambered surface setting, blast pipe 32 converge chamber 31 intercommunication, extraction fan 33 locates in the blast pipe 32, converge chamber 31 the bottom be equipped with the through-hole 311 of the inside intercommunication of box 11.

Further, the air-cooling pipeline includes a main pipe 351 and branch pipes, the main pipe is embedded in the side wall of the box body 11 and is arranged in a reciprocating bending manner, the branch pipes are perpendicular to the side wall surface and are communicated with the main pipe 351, and each branch pipe includes a communicating pipe 352, an air inlet pipe 353, an air outlet pipe 354, a connecting pipe 355, a connecting pipe 3531 and an adjusting component; the confluence chamber 31 is communicated with the air cooling pipeline through the communicating pipe 352; one end of the air inlet pipe 353 is communicated with the inside of the box body 11, one end of the air outlet pipe 354 is communicated with the outside, the air inlet pipe 353 is connected with the air outlet pipe 354 through the connecting pipe 355, the position of the air inlet pipe 353 is higher than that of the air outlet pipe 354, a dust filter 3541 is embedded in the air outlet pipe 354, and a plurality of dust filter holes 3542 only allowing air to enter and exit are formed in the dust filter 3541; the air inlet pipe 353 is connected to the main pipe 351 via a connecting pipe 3531.

Further, the regulating assembly includes humidity transducer 41, working hole, dwang 43, baffle leaf 44, rotates motor 45 and moisture absorption component, the 41 rigid couplings of humidity transducer in on the outer wall of box 11, be equipped with a plurality of working holes along vertical direction in the lateral wall of box 11, the working hole with the side wall face parallel and with connecting pipe 355 intercommunication, dwang 43 wears to locate just penetrate in the working hole in the connecting pipe 355, baffle leaf 44 is located just be equipped with the multiunit along the axial on the dwang 43, baffle leaf 44 all is located dwang 43 on the pole section in the connecting pipe 355.

Further, the moisture absorption member comprises moisture absorption cotton 51, a suction hole 52 and an installation element for fixing the moisture absorption cotton 51 in the rotating rod 43 in a replaceable manner, the installation element comprises a guide screw 531, a thread cover 532 and a nut 534, the moisture absorption cotton 51 is inserted into the rotating rod 43, and the suction hole 52 is formed in the rotating rod 43; the guide screw 531 is arranged in the moisture absorption cotton 51 and is provided with an external thread; one end of the lead screw 531 penetrates through an end face of one end of the rotating rod 43, a pull ring 535 is fixedly connected to the end, a threaded hole 536 is arranged in the threaded cover 532, the threaded hole 536 is in threaded connection with the end of the lead screw 531, and meanwhile, the threaded cover 532 is in threaded connection with the rotating rod 43; the other end of the guide screw 531 penetrates through the end face of the other end of the rotating rod 43, the end of the guide screw 531 is in a sharp-angle shape, and the nut 534 is in threaded connection with the guide screw 531;

further, a connecting cylinder 537 is arranged on the nut 534, the connecting cylinder 537 is covered on the penetrating end of the guide screw 531, which is matched with the nut 534, and an end of the connecting cylinder 537, which is far away from the rotating rod 43, is fixedly connected to an extending shaft of the rotating motor 45; the connecting cylinder 537 is provided with a peephole 538 for observing the position of the guide screw 531 therein.

Detailed description of the preferred embodiment

When the working element in the distribution box generates heat, the solar panel generates electric energy to drive the blowing motor to rotate the blowing fan 22, so that the internal air flows, part of the heat is exhausted from the exhaust pipe 32 through the converging cavity 31 under the action of the exhaust fan 33 along with the hot air, part of the heat is directly exhausted from the exhaust pipe along with the hot air, and the other part of the heat enters the air inlet pipe 353, enters the main pipe 351 under the action of the exhaust fan 33, enters the converging cavity 31 through the connecting pipe 355 and is finally exhausted from the exhaust pipe 32. Thereby realize the inside heat dissipation with higher speed of block terminal.

It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all 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.

Claims (10)

1. The utility model provides a block terminal that radiating effect is good, includes and distributes electrical rack (1), locates box (11) on the electrical rack (1), locate chamber door (13) on box (11), locate the eaves (14) and locate at box (11) top the cooling system on box (11), its characterized in that: the heat dissipation system comprises a blowing device for driving internal air to flow in an accelerating mode, an air cooling device for accelerating the heat dissipation of the inner wall of the box body (11) and an energy component (16) for providing a power source for system operation, wherein the blowing device comprises a blowing motor (21) arranged at the bottom of the box body (11), a blowing fan (22) arranged on the motor and a flow distribution plate (23) used for dispersing air flow of the blowing fan (22), the flow distribution plate (23) is arranged in an arc shape and covers the upper portion of the blowing fan (22), and a plurality of air blowing holes (231) are formed in the flow distribution plate along the arc surface.

2. The good block terminal of radiating effect of claim 1, characterized in that: the air cooling device comprises an air cooling pipeline arranged in the inner wall of the box body (11), a converging cavity (31) arranged in a top eave (14), an exhaust pipe (32) used for exhausting air in the converging cavity (31) to the outside, an exhaust fan (33) used for exhausting the air in the converging cavity (31) and an exhaust motor (34) used for driving the exhaust fan (33) to rotate, the converging cavity (31) is communicated with the air cooling pipeline, the inner wall of the converging cavity (31) is arranged in an arc surface mode, the exhaust pipe (32) is communicated with the converging cavity (31), the exhaust fan (33) is arranged in the exhaust pipe (32), and a through hole (311) communicated with the inside of the box body (11) is formed in the bottom of the converging cavity (31).

3. The good block terminal of radiating effect of claim 2, characterized in that: the air cooling pipeline comprises a main pipe (351) arranged in the side wall of the box body (11) and branch pipes arranged on the main pipe (351), wherein each branch pipe comprises a communicating pipe (352) used for communicating the main pipe (351) with the confluence chamber (31), an air inlet pipe (353) used for allowing hot air in the box body (11) to enter the main pipe (351), an air outlet pipe (354) used for exchanging heat with the outside, a connecting pipe (355) used for communicating the air inlet pipe (353) with the air outlet pipe (354), a connecting pipe (3531) used for communicating the air inlet pipe (353) with the main pipe (351) and an adjusting assembly used for controlling the air in the branch pipes to pass and stop according to the outside humidity.

4. The good block terminal of radiating effect of claim 3, characterized in that: the position of the air inlet pipe (353) is higher than that of the air outlet pipe (354), a dust filter cover (3541) used for preventing dust from entering is embedded in the air outlet pipe (354), and a plurality of dust filter holes (3542) only allowing air to enter and exit are formed in the dust filter cover (3541).

5. The good block terminal of radiating effect of claim 4, characterized in that: the adjusting part is including humidity transducer (41) that is used for detecting humidity, locates working hole in box (11) inner wall, wear to locate dwang (43) in the working hole, locate baffle leaf (44) on dwang (43), be used for the drive dwang (43) pivoted rotation motor (45) and be used for absorbing the moisture absorption component of moisture in the air-cooled pipeline, the working hole with connecting pipe (355) intercommunication, dwang (43) are worn to locate just penetrate in the working hole in connecting pipe (355), baffle leaf (44) are located dwang (43) are located pole section in connecting pipe (355).

6. The good block terminal of radiating effect of claim 5, characterized in that: the moisture absorption component comprises moisture absorption cotton (51), a suction hole (52) for allowing moisture to be absorbed by the moisture absorption cotton (51), and a mounting element for enabling the moisture absorption cotton (51) to be fixed in a replaceable mode in the rotating rod (43), the moisture absorption cotton (51) is arranged in the rotating rod (43), and the suction hole (52) is opened in the rotating rod (43).

7. The good block terminal of radiating effect of claim 6, characterized in that: the mounting element comprises a guide screw (531) penetrating through the moisture absorption cotton (51), a threaded cover (532) in threaded connection with one end of the rotating rod (43) and a nut (534) arranged at the other end of the rotating rod (43), the threaded cover (532) of the threaded cover (532) is connected to the rotating rod (43) and in threaded connection with the rotating rod (43), the guide screw (531) penetrates out of the threaded cover (532) and penetrates out of the end to be fixedly connected with a pull ring (535); the nut (534) is in threaded connection with the guide screw (531), one end of the nut is abutted against the end face of the rotating rod (43), the guide screw (531) penetrates through the nut (534), and the penetrating end of the guide screw is in a sharp-angle shape; a connecting cylinder (537) is arranged on the nut (534), the connecting cylinder (537) is covered on the penetrating end of the guide screw (531), and one end of the connecting cylinder is fixedly connected to an extending shaft of the rotating motor (45); and the connecting cylinder (537) is provided with a peephole (538) for observing the position of the guide screw (531) in the connecting cylinder.

8. The good block terminal of radiating effect of claim 1, characterized in that: the box door (13) is provided with a rotating piece (15) which is used for enabling the box door (13) to be rotatably connected to the box body (11), the box door (13) is provided with a moisture-proof assembly which is used for limiting moisture to enter the box body (11), the moisture-proof assembly comprises a buckling component which is used for limiting the moisture to enter from the rotating connection position of the box door (13) and the box body (11), a sealing strip (131) which limits the moisture to enter from the upper and lower door seams of the box door (13) and a movable stop block component which is arranged on the side wall of the box door, and the sealing strip (131) is embedded in the upper and lower end faces of the box door (13); the fastening component is including locating arc platform (171) on the door frame of box (11), locating arc wall (172) on chamber door (13), locating draw-in groove (173) on arc platform (171) lateral wall, locate moisture absorption strip (174) in draw-in groove (173) and locating card platform (175) on chamber door (13), the parcel has wear-resisting sealant layer and its cooperable joint in arc wall (172) on arc platform (171), but card platform joint income just extrude in draw-in groove (173) on moisture absorption strip (174).

9. The good block terminal of radiating effect of claim 8, characterized in that: the movable stop block component comprises a rotating shaft (181) penetrating through the door (13), a rotating handle (182) arranged on the rotating shaft (181) and positioned on the outer wall side of the door (13), a driving rocker (183) arranged at the other end of the rotating shaft (181), a connecting rod (184) hinged on the driving rocker (183), a movable stop block used for limiting moisture entering from a door gap and a driven rocker (186) used for limiting the motion track of the connecting rod (184), one end of the driven rocker (186) is hinged on the connecting rod (184), and the other end of the driven rocker is rotatably connected on the door (13); the movable stopper (185) is provided with a push groove, and the connecting rod (184) is clamped in the push groove in a matching manner.

10. The good block terminal of radiating effect of claim 9, characterized in that: one end of the connecting rod (184) close to the door frame of the box body (11) is provided with a limiting block (187), the door frame on the box body (11) is provided with a limiting groove (188), and the limiting block (187) penetrates through the movable stop block (185) and can be clamped in the limiting groove (188).

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