阅读说明：本技术 一种网络交换机电路板受潮防短路设备 (Network switch circuit board equipment of preventing short circuit that wets ) 是由 马良华 于 2021-06-29 设计创作，主要内容包括：本发明公开了一种网络交换机电路板受潮防短路设备,包括承载底盒,承载底盒的顶端开设有承载仓；防潮组件设置在承载仓的顶部,防潮组件包括控制板,控制板的顶端分别开设有两个排风口和两个吸湿口,两个排风口内均设置有排风扇,两个吸湿口内均嵌设有吸水棉；防护顶盖卡接在承载底盒的顶端,防护顶盖的顶端开设有两个散热口,防护顶盖的底端开设有放置槽；遮挡组件设置在放置槽内。本发明的有益效果是：本发明,在承载底盒内控制电路板的上方设置有防潮组件,然后在防护顶盖内设置有遮挡组件,通过两个组件的配合使用,使得能够对交换机内部的潮湿气流进行很好地导向吸收祛除,避免控制电路板出现短路。(The invention discloses a network switch circuit board damp-proof short-circuit prevention device which comprises a bearing bottom box, wherein the top end of the bearing bottom box is provided with a bearing bin; the damp-proof assembly is arranged at the top of the bearing bin and comprises a control panel, two air outlets and two moisture absorption ports are respectively formed in the top end of the control panel, exhaust fans are arranged in the two air outlets, and absorbent cotton is embedded in the two moisture absorption ports; the protective top cover is clamped at the top end of the bearing bottom box, two heat dissipation ports are formed in the top end of the protective top cover, and a placing groove is formed in the bottom end of the protective top cover; the shielding component is arranged in the placing groove. The invention has the beneficial effects that: according to the invention, the moisture-proof component is arranged above the control circuit board in the bearing bottom box, then the shielding component is arranged in the protective top cover, and the two components are matched for use, so that moist air flow in the switch can be guided, absorbed and removed well, and the control circuit board is prevented from short circuit.)

1. The utility model provides a network switch circuit board equipment of preventing short circuit that wets which characterized in that includes:

the bearing bottom box (1), the top end of the bearing bottom box (1) is provided with a bearing bin, and a control circuit board (105) is arranged in the bearing bin;

the moisture-proof assembly is arranged at the top of the bearing bin and comprises a control plate (3), two air outlets (303) and two moisture absorption ports (304) are respectively formed in the top end of the control plate (3), an exhaust fan (307) is arranged in each air outlet (303), and absorbent cotton (308) is embedded in each moisture absorption port (304);

the protective top cover (4) is clamped at the top end of the bearing bottom box (1), two heat dissipation ports (401) are formed in the top end of the protective top cover (4), a moving port (402) is formed between the two heat dissipation ports (401) and the top end of the protective top cover (4), and a placing groove is formed in the bottom end of the protective top cover (4);

the shielding assembly is arranged in the placing groove and comprises two folding blocking cloths (5) and two connecting baffle plates (501) fixedly connected with the two ends of the folding blocking cloths (5) in opposite directions, connecting blocks (6) are fixedly connected between the two opposite sides of the connecting baffle plates (501), and connecting assemblies are arranged in the connecting blocks (6).

2. The network switch circuit board moisture short circuit prevention device of claim 1, wherein: two supporting sliding grooves (104) are symmetrically formed in the inner walls of the two sides of the top of the bearing bin, a plurality of wiring ports (101) are formed in one side of the bearing bottom box (1), supporting grooves are formed in the inner wall of the back of the bearing bin, supporting holes are formed in the inner wall of the front of the bearing bin, and combined grooves (103) are formed in the four corners of the top end of the bearing bottom box (1).

3. The network switch circuit board damp short-circuit prevention device of claim 2, wherein: the supporting groove and the supporting hole are connected with a screw rod (2) in a rotating and inserting mode, one end of the screw rod (2) is sleeved with a knob (201), the two ends of one side of the bearing bottom box (1) are fixedly connected with mounting plates (102), and two mounting holes are formed in one side of each mounting plate (102).

4. The network switch circuit board moisture short circuit prevention device of claim 1, wherein: the utility model discloses a control panel, including control panel (3), control panel (3) front middle part has been seted up and has been worn jack (301), it alternates the connection to wear jack (301) and lead screw (2) rotation, the equal fixedly connected with supporting slide block (305) in both sides of control panel (3), two supporting slide block (305) respectively with two supporting sliding groove (104) slip alternate connection, spread groove (302) have been seted up at the middle part on control panel (3) top.

5. The network switch circuit board moisture short circuit prevention device of claim 1, wherein: two the both sides at spread groove (302) are seted up to air exit (303) symmetry, two the both sides at two air exits (303) are seted up to moisture absorption mouth (304) symmetry, two the inner wall of air exit (303) bottom is provided with a plurality of supporting baffle (306), two a plurality of holes that absorb water have all been seted up on the top of cotton (308) that absorbs water.

6. The network switch circuit board moisture short circuit prevention device of claim 1, wherein: two guide sliding grooves (405) are symmetrically formed in the inner walls of the two sides of the placing groove, four combined columns (404) are fixedly connected to the four corners of the bottom end of the protection top cover (4), the four combined columns (404) are slidably and alternately connected with the four combined grooves (103) respectively, and a plurality of protection blocking rods (403) are fixedly connected to the inner walls of the two sides of the heat dissipation port (401).

7. The network switch circuit board moisture short circuit prevention device of claim 1, wherein: the two sides of the two connecting baffle plates (501) are fixedly connected with guide sliding blocks (502), the four guide sliding blocks (502) are respectively connected with the two guide sliding grooves (405) in a sliding and penetrating manner, and the other two sides of the connecting baffle plates (501) back to the back are respectively fixedly connected with the inner walls of the front face and the back face of the placing groove.

8. The network switch circuit board moisture short circuit prevention device of claim 1, wherein: the control hole has been seted up on the top of connecting block (6), the smooth mouth of restriction (601) has all been seted up to the both sides of connecting block (6), two smooth mouth of restriction (601) all link up each other with the control hole.

9. The network switch circuit board moisture short circuit prevention device of claim 1, wherein: the connecting assembly comprises a connecting sliding rod (602), the connecting sliding rod (602) is connected with the control hole in a sliding and inserting mode, and the top and the bottom of the connecting sliding rod (602) are respectively connected with the moving opening (402) and the connecting groove (302) in a sliding and inserting mode.

10. The network switch circuit board moisture short circuit prevention device of claim 9, wherein: the connecting device is characterized in that a lever arm of the connecting sliding rod (602) is fixedly connected with two limiting sliding blocks (603), the two limiting sliding blocks (603) are respectively connected with the two limiting sliding openings (601) in a sliding and penetrating manner, the top ends of the two limiting sliding blocks (603) are respectively provided with an extrusion spring (604), and the two ends of the extrusion spring (604) are respectively fixedly connected with the top ends of the two limiting sliding blocks (603) and the inner walls of the top ends of the two limiting sliding openings (601).

Technical Field

The invention relates to a network switch, in particular to a damp short-circuit prevention device for a circuit board of the network switch, and belongs to the technical field of switches.

Background

A network switch is a network hardware that is a network expansion appliance that provides more connection ports in a sub-network to connect more computers. The network switch can be applied in many scenes, if in some humid environments, the internal circuit board is heated to work and easily forms water vapor, and if the water vapor diffuses into the interior of the switch, the circuit board is likely to be short-circuited.

The inside vapor's of switch is generally carried out to current switch adoption exhaust fan outward arranging, it is directly outward arranging to carry out holistic steam with the city just to adopt a great fan, such dampproofing facility does not possess the pertinence, in case the inside position of weing of switch is not in same department, the mode of adopting unified processing very easily causes vapor diffusion to whole like this, still can have certain short circuit risk of weing like this, this kind of switch exhaust all passes through the thermovent simultaneously, in order to strengthen the heat dissipation efficiency of airing exhaust, these thermovents are seted up comparatively greatly usually, and are in open state, also can make the inside and external environment contact range of switch bigger like this, the risk of weing short circuit has also been increased to a certain extent.

Disclosure of Invention

The invention aims to solve the problems and provide a device for preventing a network switch circuit board from being affected with damp and short-circuited.

The invention achieves the above-mentioned purpose through the following technical scheme, a network switch circuit board wets the short-circuit prevention apparatus, including:

the top end of the bearing bottom box is provided with a bearing bin, and a control circuit board is arranged in the bearing bin;

the moisture-proof assembly is arranged at the top of the bearing bin and comprises a control panel, two air outlets and two moisture absorption ports are respectively formed in the top end of the control panel, exhaust fans are arranged in the two air outlets, and absorbent cotton is embedded in the two moisture absorption ports;

the protective top cover is clamped at the top end of the bearing bottom box, two heat dissipation ports are formed in the top end of the protective top cover, a moving port is formed in the top end of the protective top cover and located between the two heat dissipation ports, and a placing groove is formed in the bottom end of the protective top cover;

the shielding assembly is arranged in the placing groove and comprises two folding blocking cloths, wherein the two ends of the folding blocking cloths are fixedly connected with connecting baffles, the connecting baffles are fixedly connected between one sides of the connecting baffles in opposite directions, and connecting assemblies are arranged in the connecting baffles.

Preferably, two supporting sliding grooves are symmetrically formed in the inner walls of the two sides of the top of the bearing bin, a plurality of wiring ports are formed in one side of the bearing bottom box, supporting grooves are formed in the inner wall of the back of the bearing bin, supporting holes are formed in the inner wall of the front of the bearing bin, and combined grooves are formed in the four corners of the top end of the bearing bottom box.

Preferably, the support groove and the support hole are rotatably and alternately connected with a screw rod, one end of the screw rod is sleeved with a knob, the two ends of one side of the bearing bottom box are fixedly connected with mounting plates, and two mounting holes are formed in one side of each mounting plate.

Preferably, the middle of the front side of the control panel is provided with a through hole, the through hole is in rotation and insertion connection with the screw rod, the two sides of the control panel are fixedly connected with supporting slide blocks, the two supporting slide blocks are in sliding insertion connection with the two supporting slide grooves respectively, and the middle of the top end of the control panel is provided with a connecting groove.

Preferably, two the both sides at the spread groove are seted up to the air exit symmetry, two the both sides at two air exits are seted up to the moisture absorption mouth symmetry, two the inner wall of air exit bottom is provided with a plurality of supporting baffle, two a plurality of holes that absorb water have all been seted up on the cotton top of absorbing water.

Preferably, two guide sliding grooves are symmetrically formed in the inner walls of the two sides of the placing groove, four combination columns are fixedly connected to four corners of the bottom end of the protective top cover, the four combination columns are slidably and alternately connected with the four combination grooves respectively, and a plurality of protective blocking rods are fixedly connected to the inner walls of the two sides of the heat dissipation port.

Preferably, two of the connecting baffle plates are fixedly connected with guide sliding blocks on two sides, the four guide sliding blocks are respectively connected with the two guide sliding grooves in a sliding and penetrating manner, and the other two connecting baffle plates are fixedly connected with the inner walls of the front face and the back face of the placing groove respectively on the opposite sides.

Preferably, the top end of the connecting block is provided with a control hole, the two sides of the connecting block are provided with limiting sliding openings, and the two limiting sliding openings are communicated with the control hole.

Preferably, coupling assembling is including connecting the slide bar, connect slide bar and control hole slip interlude and connect, just the top and the bottom of connecting the slide bar are connected with removal mouth and spread groove slip interlude respectively.

Preferably, the lever arm fixedly connected with two restriction sliders of connecting the slide bar, two restriction sliders are respectively with two restriction sliding mouths slip interlude and are connected, two the top of restriction slider all is provided with extrusion spring, two the both ends of extrusion spring respectively with the top of two restriction sliders and the inner wall fixed connection on two restriction sliding mouths tops.

The invention has the beneficial effects that: 1. according to the invention, the moisture-proof component is arranged above the control circuit board in the bearing bottom box, then the shielding component is arranged in the protective top cover, and the moisture airflow in the switch can be guided, absorbed and removed well by the matching use of the two components, so that the moisture-proof function is realized, and the control circuit board is prevented from short circuit.

2. According to the invention, the shielding component is arranged in the protective top cover and can be matched with the protective top cover to realize the adjustment of the opening position of the heat dissipation port, so that the heat dissipation port can keep the original heat dissipation function, and the opening position of the heat dissipation port can be controlled according to the position to be dehumidified, the discharged water vapor is prevented from flowing into other positions of the heat dissipation port, the pertinence of dehumidification is improved, and the dehumidification efficiency is higher.

3. According to the invention, the shielding component and the moisture-proof component are connected through the connecting component, then the change of the position of the moisture-proof component in the bearing bottom box is controlled through the lead screw, the moisture-proof component and the shielding component are synchronously adjusted under the driving of the connecting component, and meanwhile, the opening position of the heat dissipation port is always positioned right above the moisture-proof component, so that the dehumidification effect is more obvious.

4. According to the invention, the adjustment operation of the moisture-proof assembly and the shielding assembly is very simple, the control is realized through the lead screw, the moisture-proof assembly can only horizontally move under the matching of the supporting slide block and the supporting slide groove, and the shielding assembly can only horizontally move under the guiding support of the guiding slide block and the guiding slide groove, so that the matching adjustment between the assemblies is smoother.

5. According to the invention, the two exhaust fans and the two absorbent cottons are socially free of the moisture-proof component, the air in the exchanger can be guided more obviously under the action of the two exhaust fans, the two absorbent cottons can absorb the water vapor evaporated by the control circuit board more smoothly and efficiently, and meanwhile, the absorption contact area can be increased through the water absorption holes of the absorbent cottons, so that the dehumidification efficiency is higher.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the construction of the load-bearing base box and moisture barrier assembly of the present invention;

FIG. 3 is a schematic view of the construction of the moisture barrier assembly of the present invention;

FIG. 4 is a schematic structural diagram of a control panel according to the present invention;

FIG. 5 is an enlarged view of the structure at A in FIG. 4 according to the present invention;

FIG. 6 is a top view of the protective top cover of the present invention;

FIG. 7 is a bottom view of the protective top cover of the present invention;

FIG. 8 is a schematic view of the connection of the folding patch and the connector block of the present invention;

FIG. 9 is a schematic view of a coupling assembly of the present invention;

fig. 10 is an enlarged view of the structure at B in fig. 8 according to the present invention.

In the figure: 1. a load-bearing bottom box; 101. a wiring port; 102. mounting a plate; 103. a combination tank; 104. a support chute; 105. a control circuit board; 2. a screw rod; 201. a knob; 3. a control panel; 301. inserting holes; 302. connecting grooves; 303. an air outlet; 304. a moisture absorption port; 305. a support slide block; 306. a support baffle; 307. an exhaust fan; 308. absorbent cotton; 4. a protective top cover; 401. a heat dissipation port; 402. moving the port; 403. a protective stop lever; 404. a combination column; 405. a guide chute; 5. folding the blocking cloth; 501. connecting a baffle plate; 502. a guide slider; 6. connecting blocks; 601. a restricted sliding port; 602. connecting a sliding rod; 603. a limiting slide block; 604. compressing the spring.

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. 1-10, a device for preventing a network switch circuit board from being affected with moisture and short-circuited includes:

the bearing bottom box 1 is provided with a bearing bin at the top end of the bearing bottom box 1, and a control circuit board 105 is arranged in the bearing bin;

the control circuit board 105 is arranged in the bearing bin, and the control circuit board 105 is used as a control part of the whole switch and is an important component for realizing the functions of the switch.

Two supporting sliding grooves 104 are symmetrically formed in the inner walls of the two sides of the top of the bearing bin, a plurality of wiring ports 101 are formed in one side of the bearing bottom box 1, supporting grooves are formed in the inner wall of the back of the bearing bin, supporting holes are formed in the inner wall of the front of the bearing bin, and combined grooves 103 are formed in the four corners of the top end of the bearing bottom box 1;

the two supporting chutes 104 are horizontally and symmetrically arranged on the inner walls of the two sides of the top of the bearing bin, the plurality of wiring ports 101 are divided into a plurality of types and can be adapted to various connecting wires, and the plurality of wiring ports 101 correspond to the plurality of connecting ends of the control circuit board 105 respectively;

the supporting groove is designed in a circular shape and is arranged in the middle of the inner wall of the back of the bearing bin, the arranging height of the supporting groove is the same as that of the supporting sliding groove 104, the supporting hole penetrates through the middle of the front of the bearing bottom box 1 and is the same as the shape and the aperture of the supporting groove, and the supporting hole and the supporting groove are horizontally and longitudinally centrosymmetrically arranged.

A screw rod 2 is rotatably inserted into the support groove and the support hole, one end of the screw rod 2 is sleeved with a knob 201, two ends of one side of the bearing bottom box 1 are fixedly connected with mounting plates 102, and two mounting holes are formed in one side of each of the two mounting plates 102;

the two mounting plates 102 are respectively arranged at two positions, so that the whole network switch is more convenient to fix, the diameter of the screw rod 2 is the same as that of the support groove and the support hole, the inner walls of the support groove and the support hole are smooth, and the screw rod 2 can freely and smoothly rotate.

Knob 201 cover is established and is exposed at the positive part of supported hole at lead screw 2, the outer wall of knob 201 is provided with some edges and corners, frictional force when just so can increase the rotation for knob 201 can drive lead screw 2 effectively and rotate, the operator of being convenient for controls the wrench movement, the height of two mounting panels 102 is the same with the height that bears end box 1, and fixed connection is respectively at the front and the back that bear end box 1 one side, can be convenient for carry out fixed mounting to whole switch through the mounting hole on the mounting panel 102.

The moisture-proof component is arranged at the top of the bearing bin and comprises a control panel 3, two air outlets 303 and two moisture absorption ports 304 are respectively formed in the top end of the control panel 3, exhaust fans 307 are respectively arranged in the two air outlets 303, and absorbent cotton 308 is embedded in the two moisture absorption ports 304;

the two exhaust fans 307 are embedded in the two exhaust ports 303, the wind direction of the exhaust fans 307 is guided from bottom to top, and the arrangement of the exhaust fans 307 can accelerate the air flow in the bearing bottom box 1 and guide the moist air flow in the whole bearing bottom box 1 upwards;

the size of the absorbent cotton 308 is the same as that of the absorbent opening 304, the absorbent cotton 308 is wholly embedded in the absorbent opening 304, and the absorbent cotton 308 is arranged close to the exhaust fan 307, so that the moisture can be directly absorbed.

The protective top cover 4 is clamped at the top end of the bearing bottom box 1, two heat dissipation ports 401 are formed in the top end of the protective top cover 4, a moving port 402 is formed in the top end of the protective top cover 4 and located between the two heat dissipation ports 401, and a placing groove is formed in the bottom end of the protective top cover 4;

two thermovents 401 are horizontally and symmetrically arranged at two sides of the movable opening 402 in a horizontal and transverse mode, the movable opening 402 is arranged at the middle of the top end of the protective top cover 4, the arrangement length of the movable opening 402 is the same as that of the thermovents 401, and the two thermovents 401 and the movable opening 402 are communicated with the placing groove.

Two guide sliding grooves 405 are symmetrically formed in the inner walls of the two sides of the placing groove, four corners of the bottom end of the protective top cover 4 are fixedly connected with combined columns 404, the four combined columns 404 are respectively in sliding penetrating connection with the four combined grooves 103, and a plurality of protective blocking rods 403 are fixedly connected to the inner walls of the two sides of the two radiating holes 401;

the two guide sliding chutes 405 are horizontally and transversely centrosymmetrically arranged in the middle of the inner walls of the two sides of the placing groove, the diameter of the combined column 404 is the same as that of the combined groove 103, the length of the combined column 404 is the same as that of the combined groove 103, and the protective blocking rod 403 partially shields and protects the heat dissipation port 401.

The shielding assembly is arranged in the placing groove and comprises two folding blocking cloths 5, two ends of each folding blocking cloth 5 are fixedly connected with connecting baffles 501, a connecting block 6 is fixedly connected between opposite sides of the two connecting baffles 501, and a connecting assembly is arranged in each connecting block 6;

folding fender cloth 5 has fixed dog-ear, can extend according to fixed dog-ear when using and receive and release, and folding fender cloth 5 adopts waterproof material can play the effect of sheltering from well, and the front and the back of connecting block 6 respectively with the middle part fixed connection of two adjacent connection baffle 501 one side in opposite directions.

The top end of the connecting block 6 is provided with a control hole, the two sides of the connecting block 6 are both provided with limiting sliding openings 601, and the two limiting sliding openings 601 are communicated with the control hole;

two limiting sliding openings 601 are horizontally and longitudinally symmetrically arranged at the central parts of two sides of the connecting block 6.

As a technical optimization scheme of the invention, the middle part of the front surface of the control panel 3 is provided with a through-insertion hole 301, the through-insertion hole 301 is in rotary and insertion connection with the screw rod 2, two sides of the control panel 3 are fixedly connected with supporting slide blocks 305, the two supporting slide blocks 305 are respectively in sliding and insertion connection with the two supporting slide grooves 104, and the middle part of the top end of the control panel 3 is provided with a connecting groove 302;

be provided with in the poling hole 301 with the screw of 2 to the adaptation of lead screw, just so can utilize lead screw 2 to make control panel 3 carry out the change of position, two support slider 305 are fixed connection respectively in the middle part of control panel 3 both sides, and the length and the thickness of supporting slider 305 correspond the same with the degree of depth and the groove height that support spout 104, utilize the direction support that supports slider 305 and support spout 104 for control panel 3 can only carry out horizontal longitudinal movement, and spread groove 302 is circular design.

The two air outlets 303 are symmetrically arranged on two sides of the connecting groove 302, the two moisture absorption ports 304 are symmetrically arranged on two sides of the two air outlets 303, the inner walls of the bottom ends of the two air outlets 303 are provided with a plurality of supporting baffles 306, and the top ends of the two absorbent cottons 308 are both provided with a plurality of water absorption holes;

the supporting baffle 306 in the air exit 303 can be convenient for placing the exhaust fan 307, and more convenient to install the exhaust fan 307 in the air exit 303, and a plurality of water absorption holes that set up on the cotton 308 that absorbs water have increased the area of contact of cotton 308 and air that absorbs water for the efficiency that absorbs water improves, and makes the utilization ratio of the cotton 308 that absorbs water also can improve.

As a technical optimization scheme of the invention, two sides of two connecting baffles 501 are fixedly connected with guide sliders 502, four guide sliders 502 are respectively connected with two guide chutes 405 in a sliding and penetrating manner, and the other two opposite sides of the connecting baffles 501 are respectively fixedly connected with the inner walls of the front and back of the placing groove;

four direction sliders 502 are fixed connection respectively in the middle part of two connection baffle 501 both sides, and the length and the height of direction slider 502 correspond the same with the degree of depth and the groove height of direction spout 405, and direction slider 502 cooperation direction spout 405 makes connection baffle 501 drive folding fender cloth 5 can only carry out horizontal extension.

As a technical optimization scheme of the present invention, the connecting assembly includes a connecting sliding rod 602, the connecting sliding rod 602 is slidably and alternately connected with the control hole, and the top and the bottom of the connecting sliding rod 602 are slidably and alternately connected with the moving port 402 and the connecting groove 302, respectively;

the connecting rod 602, the control aperture and the connecting slot 302 are all the same diameter and the same width as the moving port 402.

The lever arm connected with the sliding rod 602 is fixedly connected with two limiting sliding blocks 603, the two limiting sliding blocks 603 are respectively connected with the two limiting sliding openings 601 in a sliding and penetrating manner, the top ends of the two limiting sliding blocks 603 are respectively provided with an extrusion spring 604, and the two ends of the two extrusion springs 604 are respectively fixedly connected with the top ends of the two limiting sliding blocks 603 and the inner walls of the top ends of the two limiting sliding openings 601;

the width of the limiting slider 603 is the same as the width of the limiting sliding opening 601, the extrusion spring 604 always keeps extrusion force on the limiting slider 603, and the connecting sliding rod 602 always keeps penetrating connection with the connecting groove 302 through traction on the limiting slider 603.

In use, the invention is described with reference to figures 1 to 10;

the first step of operation is implemented, the components in the whole device are firstly connected and debugged, then the four combined columns 404 and the four combined grooves 103 are aligned and clamped, and the protective top cover 4 is clamped at the top end of the bearing bottom box 1.

A second step of operation is implemented, in which the connecting slide rod 602 is pulled upwards, the connecting slide rod 602 moves upwards to drive the limiting slide block 603 to move upwards, and the two pressing springs 604 are pressed at the same time, as shown in detail in fig. 8 to 10;

then knob 201 is held to rotate screw rod 2, screw rod 2 rotates and makes control panel 3 horizontal lateral shifting in bearing the weight of the storehouse, after the center of control panel 3 moved to connecting slide bar 602 under, release and connect slide bar 602, under the effect of two extrusion spring 604 restoring forces, two restriction sliders 603 drive connecting slide bar 602 and push down, the bottom of connecting slide bar 602 can slide and alternate in spread groove 302 at this moment, at this moment just accomplished dampproofing subassembly and sheltered from the connection of subassembly.

The connection of the moisture-proof component and the shielding component can be performed in another mode, the connecting sliding rod 602 is pulled upwards firstly, the connecting sliding rod 602 is in a compression state with the upper operation extrusion spring 604, then the connecting sliding rod 602 is pinched to horizontally and transversely move until the bottom of the connecting sliding rod 602 is positioned right above the center of the control panel 3, then the force of the connecting sliding rod 602 is released, and the connecting sliding rod 602 is slidably and alternately connected in the connecting groove 302 under the action of the restoring force of the extrusion spring 604.

Implementing a third step of operation, when dehumidification is needed, adjusting the moisture-proof assembly and the shielding assembly according to the position of the control circuit board 105 needing centralized dehumidification, rotating the screw rod 2, and enabling the control board 3 to horizontally and transversely move by the screw rod 2;

the control panel 3 enables the connecting block 6 to move synchronously along with the control panel 3 through the connection relationship between the connecting groove 302 and the connecting slide rod 602, the movement of the connecting block 6 can drive the two connecting baffles 501 connected with the connecting block to move synchronously, the two connecting baffles 501 move to enable the two folding blocking cloths 5 to extend to different degrees, and due to the shielding of the two folding blocking cloths 5, the opening position of the heat dissipation port 401 is always kept right above the control panel 3;

until control panel 3 remove to wait behind the top of dehumidification position, start two exhaust fans 307 this moment, two exhaust fans 307 start the inside air flow of whole switch with higher speed after the start, and according to the direction of airing exhaust of exhaust fan 307, the air upflow in the switch, the vapor that evaporates through the heating of control circuit board 105 this moment flows upwards under the guide of exhaust fan 307, can be absorbed steam after cotton 308 departments absorb water, just so directly handle the vapor, play dampproofing effect.

The positions of the moisture-proof assembly and the shielding assembly can be moved according to the position to be subjected to moisture removal, and the connection relation between the connecting slide rod 602 and the control panel 3 can be utilized to synchronously adjust the moisture-proof assembly and the shielding assembly only by rotating the screw rod 2.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.