CN116781649A - Industrial switch with electromagnetic shielding function - Google Patents

Abstract

The invention relates to the field of switches, and discloses an industrial switch with an electromagnetic shielding function, which comprises a switch shell, wherein a metal shielding layer is arranged on the switch shell, an air inlet and an air outlet are arranged on the outer surface of the switch shell, an air inlet unit is arranged at the air inlet, an air outlet unit is arranged at the air outlet, the air inlet unit and the air outlet unit are matched to realize the flow of air in the switch shell and the metal shielding at the air outlet and the air inlet, a heat dissipation mechanism is further arranged in the switch shell, the heat dissipation mechanism is arranged to switch between a heat dissipation state and an ash removal state, the heat dissipation mechanism is used for carrying out dust-free heat dissipation on the switch, and the heat dissipation mechanism is used for carrying out automatic ash removal on a filter plate and the inside of the switch and pulling and removing generated dust to be output towards the outside when the switch is in the ash removal state.

Description

Industrial switch with electromagnetic shielding function

Technical Field

The invention relates to the field of switches, in particular to an industrial switch with an electromagnetic shielding function.

Background

The industrial exchanger is also called an industrial Ethernet exchanger, namely an Ethernet exchanger device applied to the industrial control field, electromagnetic shielding is needed in the use process of the exchanger, so that other devices are not interfered, and meanwhile, the interference of other devices is avoided, the most common electromagnetic shielding means of the exchanger is metal shielding, in short, a layer of metal shielding coating is arranged on an exchanger shell, or the exchanger shell is made of a metal shielding material directly, besides, the exchanger inevitably generates heat in the use process, particularly, the heat phenomenon is more easily caused when the exchanger runs for a long time, therefore, a cooling structure is generally arranged in the exchanger, the cooling mode of the existing exchanger is that a fan dissipates heat, and the mode can realize heat dissipation of the exchanger, but has some defects: this kind of radiating mode generally needs to set up air intake and air outlet on the switch shell, air intake and air outlet department are provided with the filter screen of filtration dust, on the one hand, air intake and air outlet department can't realize electromagnetic shield, influence the electromagnetic shield performance of switch, on the one hand, use for a long time and lead to the filter screen of air intake and air outlet department to be blockked up by the dust easily, influence the air flow, and then influence the radiating effect, on the other hand, be limited by the filtration restriction of filter screen itself, some dust that is less than the filtration pore size still can wear the filtration pore and get into inside the switch, and reduce the size of filtration pore, can cause the influence to the air flow again and increase the cost of filter screen.

Based on the above, the invention provides an industrial switch with electromagnetic shielding function.

Disclosure of Invention

To solve the problems mentioned in the background above, the present invention provides an industrial switch having an electromagnetic shielding function.

In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows.

The utility model provides an industrial switch with electromagnetic shield function, it includes the switch shell, be provided with the metal shielding layer on the switch shell, the surface of switch shell is provided with air inlet and gas outlet, air inlet department is provided with the unit that admits air, gas outlet department is provided with the unit that admits air, the unit that admits air is used for realizing the flow of air in the switch shell and realizes the metal shielding of gas outlet and air inlet department with the unit cooperation of giving vent to anger, still be provided with cooling mechanism in the switch shell, cooling mechanism sets up to switch between heat dissipation state and deashing state, when being in heat dissipation state, cooling mechanism is used for carrying out dust-free heat dissipation to the switch, when being in the deashing state, cooling mechanism is used for carrying out automatic deashing to filter plate and self inside and traction to clear away the dust that produces towards external output.

Further, the air inlet unit comprises an air inlet cover arranged in the air inlet, two groups of filter plates are arranged in the air inlet cover along the center line of the air inlet, the filter plates are made of metal shielding materials, the filter plates are provided with filter holes, the filter holes on the two groups of filter plates are arranged in a staggered mode, and the air inlet cover is communicated with the heat dissipation mechanism through an air inlet pipeline.

Further, the air outlet unit comprises an inner separator and an outer separator, the inner separator comprises a fixed plate arranged in the air outlet, a plurality of separators a are arranged on one side of the fixed plate, which faces the outside, in an array mode along the width direction, the outer separator comprises two adjacent separators a and a plurality of separators b arranged on the wall of the air outlet, which faces the width direction, of the fixed plate, the separators b are correspondingly arranged, the plurality of separators b are divided into a plurality of groups of separators, and one side of each group of separators is communicated with one side, which faces the outside, of each group of separators b through a connecting plate.

Further, the heat dissipation mechanism comprises a connecting valve, an air inlet component and a blower, the outer surface of the exchanger shell is provided with an ash removal opening, the ash removal opening is provided with a filtering unit, the structure of the filtering unit is consistent with that of the air inlet unit, the tail end of an air inlet pipeline is communicated with the connecting valve, a first connecting pipeline is arranged between the connecting valve and the ash removal opening, a second connecting pipeline is arranged between the connecting valve and the air outlet end of the blower, the power shaft of the blower is communicated with the air inlet component, and the air inlet end of the air inlet component is communicated with the connecting valve.

Further, the connecting valve comprises a valve shell, four side surfaces of the valve shell are respectively provided with a joint mouth, the four joint mouths are a joint mouth I, a joint mouth II, a joint mouth III and a joint mouth IV in sequence, the joint mouth I is communicated with the air inlet pipeline, the joint mouth II is communicated with the connecting pipeline I, the joint mouth III is communicated with the connecting pipeline II, and the joint mouth IV is communicated with the air inlet component;

the valve core is slidably arranged in the valve shell, an upper valve hole for communicating the first nozzle with the fourth nozzle is formed in the valve core, a lower valve hole I and a lower valve hole II which are arranged below the upper valve hole in a staggered mode are formed in the valve core, the lower valve hole I is used for communicating the first nozzle with the third nozzle, and the lower valve hole II is used for communicating the second nozzle with the fourth nozzle;

the valve shell is also provided with a driving piece for driving the valve core to move, the air outlet end of the air blower is inserted with a flashboard, the flashboard is positioned at the outer side of the joint of the connecting pipeline II and the air blower, and the flashboard is connected with the valve core through a connecting rod.

Further, the air inlet component comprises an inner support and an outer sleeve arranged on the inner support, the outer sleeve is in a cylindrical shape with two open ends, and a dust removal unit for conducting air into the outer sleeve and removing dust electrostatically is arranged in the outer sleeve.

Further, the dust removing unit comprises a fixed ring which is coaxial with the outer sleeve shell and is connected with the inner support, the inner ring of the fixed ring is communicated with the fourth joint mouth, a dust collecting electrode is arranged on the end face of the fixed ring, which is far away from the fourth joint mouth, the dust collecting electrode is close to the inner wall of the outer sleeve shell, a plurality of groups of dust collecting electrodes are arranged in an array manner along the circumferential direction of the fixed ring, a rotary fan blade positioned in the outer sleeve shell is sleeved outside the fixed ring, one end of the rotary fan blade extends to form a driving ring, the driving ring is in sealing fit with the opening end of the outer sleeve shell, and the tail end of the driving ring extends out of the outer sleeve shell and is in power connection with a motor arranged on the outer surface of the outer sleeve shell;

the air inlet end of the blower is connected with the opening end of the outer sleeve shell, the air guide body comprises a connecting shaft which is coaxial with the outer sleeve shell, one end of the connecting shaft is closed and connected with a power shaft of the blower, the other end of the connecting shaft is open and is coaxially provided with an air inlet disc, the air inlet disc is connected with an annular groove arranged on the end face of the fixed ring through a bearing, the outer circular surface of the connecting shaft is extended with centrifugal blades, the two ends of the centrifugal blades are open and are communicated with the connecting shaft, the end face of the air inlet disc is provided with a connecting hole which is communicated with the connecting shaft, and the connecting hole is communicated with the inner ring of the fixed ring;

and a corona electrode is coaxially arranged in the connecting shaft, and one end of the corona electrode penetrates through the connecting shaft and the power shaft of the blower.

Further, the lowest point of the outer circular surface of the outer casing is extended with an ash discharging nozzle, the ash discharging nozzle is close to the fixed ring, and the tail end of the ash discharging nozzle is communicated with an ash discharging hole arranged on the exchanger casing; the sleeve shell is internally and coaxially sleeved with a lantern ring, the lantern ring is provided with a socket corresponding to the dust collecting electrode, and the dust collecting electrode is sleeved in the socket;

the outer disc of the outer sleeve shell is provided with an avoidance port, the extending direction of the avoidance port is parallel to the axial lead of the outer sleeve shell, a connecting support is arranged outside the outer sleeve shell, a bulge extends on the connecting support, the bulge penetrates through the avoidance port and is communicated with the lantern ring, and a linear module used for driving the connecting support to move along the axial lead of the outer sleeve shell is further arranged on the inner support.

Further, be provided with trigger switch in the ash discharge mouth, the jack has been seted up to one side that the ash discharge mouth deviates from the lantern ring, trigger switch is including inserting the shrouding of establishing in the jack, the shrouding is made for metal shielding material, extend on the shrouding have constitute sliding connection's guide arm with the inner support, the outside cover of guide arm is equipped with the spring that is located between inner support and the shrouding, under the initial condition, the shrouding carries out the shutoff to the ash discharge mouth, the shrouding deviates from one side of guide arm and extends there is the protruding pole, the protruding pole stretches out the ash discharge mouth and at the lantern ring removal in-process, can take place the contact with the linking bridge.

Further, dodge mouth department and be provided with shielding part, shielding part is including setting up the flange and rotating the pivot of installing on the flange at the outer disc of overcoat shell, and the pivot is provided with two sets of and is located the both ends of dodging the mouth respectively, is provided with between two sets of pivots and shelters from the piece, and shielding piece is made for elastic metal and tip winding sets up in the pivot, has offered on the shielding piece and wears to establish the mouth, and the arch passes wears to establish the mouth and is connected with shielding piece, all is provided with the metal shielding layer on shielding piece, the overcoat shell.

Compared with the prior art, the invention has the beneficial effects that:

the invention can realize dust-free heat dissipation of the switch under the condition of no damage to the metal shielding performance of the shell of the switch:

1. in the invention, the air inlet is provided with the air inlet unit, the air outlet is provided with the air outlet unit, the ash removing opening is provided with the filtering unit, and the ash discharging nozzle is provided with the trigger switch, and all the four parts can carry out electromagnetic shielding on the positions of the air inlet and the air outlet, so that the metal shielding of the exchanger can be kept complete and is not influenced by heat dissipation and ash removal;

2. in the invention, in the aspect of air intake, the filter plate and the dust removing unit are used for double filtration and dust removal, in the aspect of air outlet, the air outlet unit is used for blocking dust from entering, so that dust-free heat dissipation of the exchanger can be realized, the dust can be prevented from entering the exchanger while the dust is dissipated, and further, in the dust removing process of the dust removing unit, the centrifugal blades are arranged, so that the dust can be close to the dust collecting electrode, the dust removing effect of the dust removing unit is further improved, and the dust of air is blocked in the heat dissipation mechanism;

3. according to the invention, the cleaning treatment of the inside of the heat dissipation mechanism and the filter plate is realized by changing the state of the connecting valve and by matching the reverse flow of the lantern ring, the rotating fan blade and the air, and the cleaning process is limited in the inside of the heat dissipation mechanism, namely, during cleaning, the heat dissipation mechanism is isolated from the inside of the exchanger, so that the inside of the exchanger is not influenced by the ash removal process, and dust is prevented from overflowing into the inside of the exchanger in the ash removal process;

4. according to the invention, due to the unique structural design, the air guide in the heat dissipation mechanism, the dust removal unit and the ash removal structure are sleeved layer by layer, so that the volume of the heat dissipation mechanism is reduced, and dust-free heat dissipation of the switch is realized in a limited space of the switch.

Drawings

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

FIG. 2 is an internal schematic diagram of the present invention;

FIG. 3 is a cross-sectional view of an air intake unit;

FIG. 4 is a cross-sectional view of an air outlet unit;

FIG. 5 is a schematic diagram of a heat dissipation mechanism, an air intake duct, and a blower duct;

FIG. 6 is a schematic diagram of a heat dissipation mechanism;

FIG. 7 is an exploded view of the connecting valve;

FIG. 8 is a schematic illustration of a valve cartridge;

FIG. 9 is a schematic diagram of a blower, a shutter, a connecting conduit II, and a valve spool;

FIG. 10 is a schematic illustration of an air intake member;

FIG. 11 is a schematic diagram II of an air intake member;

FIG. 12 is a schematic view of an exterior sleeve;

FIG. 13 is an internal schematic view of an air intake member;

FIG. 14 is a schematic diagram of a dust removal unit and trigger switch;

FIG. 15 is a schematic view of a shutter member;

fig. 16 is a schematic view of a gas guide.

The reference numerals in the drawings are:

100. a switch housing; 101. an air outlet unit; 1011. an inner separator; 1012. an outer separator; 102. an air intake unit; 1021. an air inlet cover; 1022. a filter plate; 1023. an air intake duct; 1024. a vibrator;

200. a heat dissipation mechanism; 201. a connecting valve; 2011. a valve housing; 2012. a nozzle; 2013. a driving member; 2014. a valve core; 2015. an upper valve hole; 2016. a first lower valve hole; 2017. a second lower valve hole; 202. an air intake member; 203. a blower; 204. a first connecting pipeline; 205. a second connecting pipeline; 206. a flashboard; 207. a connecting rod; 208. an inner bracket; 209. a linear module; 210. a motor; 211. an outer shell; 2111. an avoidance port; 2112. an ash discharging nozzle; 2113. a jack; 212. conducting gas; 2121. a connecting shaft; 2122. an air inlet disc; 2123. centrifugal blades; 213. a dust removal unit; 2131. a corona electrode; 2132. a fixing ring; 2133. a dust collecting electrode; 2134. a collar; 2135. a connecting bracket; 214. rotating the fan blades; 215. a shielding member; 2151. a rotating shaft; 2152. a shielding sheet; 2153. a penetrating opening; 216. triggering a switch; 2161. a sealing plate; 2162. a protruding rod; 2163. a spring;

300. and a blowing pipeline.

Detailed Description

In order to further describe the technical means and effects adopted by the present invention for achieving the intended purpose, the following detailed description will refer to the specific implementation, structure, characteristics and effects according to the present invention with reference to the accompanying drawings and preferred embodiments.

In this scheme, the metal shielding material is prior art, and description is omitted.

As shown in fig. 1 to 16, an industrial switch having an electromagnetic shielding function includes a switch housing 100, and a metal shielding layer or a metal shielding material is provided on the switch housing 100.

The outer surface of the switch shell 100 is provided with an air inlet and an air outlet, the air inlet is provided with an air inlet unit 102, the air outlet is provided with an air outlet unit 101, the air inlet is used for air to enter the switch shell 100, the air outlet is used for air to be discharged from the switch shell 100, the air inlet and the air outlet are matched, air flow during heat dissipation of the switch is achieved, and metal shielding of the switch is not affected when the air flows, so that the air does not leak.

Specifically, as shown in fig. 3, the air inlet unit 102 includes an air inlet cover 1021 disposed in the air inlet, two groups of filter plates 1022 are disposed in the air inlet cover 1021 along the center line of the air inlet, the filter plates 1022 are made of metal shielding materials, filter holes are formed on the filter plates 1022, the filter holes on the two groups of filter plates 1022 are arranged in a staggered manner, and the air inlet cover 1021 is communicated with a heat dissipation mechanism 200 disposed in the switch housing 100 through an air inlet pipeline 1023; when the heat dissipation mechanism 200 operates to dissipate heat of the switch, external air enters the switch shell 100 after being filtered by the filter plates 1022, and in the air flow process, as the filter holes on the two groups of filter plates 1022 are staggered, and as the track can be regarded as a straight line when electromagnetic waves propagate in the air, the two groups of filter plates 1022 are matched to be equivalent to arranging a metal shielding plate for electromagnetic shielding at the air inlet, the problem that the electromagnetic shielding performance of the switch is affected due to the existence of the air inlet is solved, and air can still enter the switch shell 100 smoothly and smoothly after filtering and dedusting.

Specifically, as shown in fig. 4, the air outlet unit 101 includes an inner separator 1011 and an outer separator 1012, where the inner separator 1011 includes a fixed plate disposed in the air outlet, a plurality of separators a are disposed on one side of the fixed plate facing the outside in the width direction in an array, the outer separator 1012 includes a plurality of separators b disposed between two adjacent separators a and on the wall of the air outlet along the width direction of the fixed plate, the plurality of separators b are correspondingly disposed, the plurality of separators b are divided into a plurality of groups of separators, and one side of each group of separators b facing the outside is communicated by a connecting plate, in this scheme, the plurality of separators b are divided into two parts on average, i.e., the groups of separators are formed into two groups; when the heat dissipation mechanism 200 operates to dissipate heat of the switch, air in the switch shell 100 flows sequentially through gaps between the partition boards a and b, and finally flows outwards through gaps formed between two adjacent partition board groups, and the flow mode is equivalent to arranging a metal shielding plate at the air outlet, so that the problem that the electromagnetic shielding performance of the switch is affected by the existence of the air outlet is solved, the air can be smoothly and smoothly discharged outwards, the air can be discharged outwards through the gaps after bypassing a plurality of gaps which are in bending arrangement frequently, and external dust is difficult to enter the switch shell 100 through the air outlet unit 101 under the cooperation of airflow flow and bending obstruction, so that the dustproof effect is achieved, and even if heat dissipation is interrupted, the external dust is difficult to enter the switch shell 100 through the air outlet unit 101.

The heat dissipation mechanism 200 is configured to switch between a heat dissipation state and a dust removal state, when the heat dissipation mechanism is in the heat dissipation state, the heat dissipation mechanism 200 is used for receiving air sent from the air inlet unit 102 and performing electrostatic dust removal on the air, so that dust-free heat dissipation on the switch is realized, the influence of dust on the operation of the switch can be effectively avoided, and when the heat dissipation mechanism is in the dust removal state, the filter plate 1022 and the inside of the filter plate are simultaneously subjected to automatic dust removal processing and traction to remove generated dust to be output towards the outside, and the heat dissipation mechanism is specific:

as shown in fig. 5 and 6, the heat dissipation mechanism 200 includes a connection valve 201, an air intake member 202 and a blower 203, wherein the outer surface of the switch housing 100 is further provided with a dust removing opening, and a filtering unit is disposed at the dust removing opening for filtering air dust.

The tail end of the air inlet pipeline 1023 is communicated with the connecting valve 201, a first connecting pipeline 204 is arranged between the connecting valve 201 and the ash cleaning port, and a second connecting pipeline 205 is arranged between the connecting valve 201 and the air outlet end of the blower 203.

The power shaft of the blower 203 communicates with the air intake member 202, and the air intake end of the air intake member 202 communicates with the connection valve 201.

When the heat radiation mechanism 200 is in a heat radiation state, air is sequentially input towards the inside of the switch housing 100 through the air inlet pipeline 1023, the connecting valve 201, the air inlet member 202 and the air outlet end of the blower 203, and in the input process, the air is dedusted by the air inlet member 202; when the heat radiation mechanism 200 is in the ash removal state, air sequentially passes through the first connecting pipe 204, the connecting valve 201, the air inlet member 202, the blower 203, the second connecting pipe 205, the connecting valve 201, the air inlet pipe 1023 and the air inlet unit 102 to be output, and in the output process, the air is used for removing ash from the filter plates 1022, preferably, the vibrator 1024 can be arranged between the two groups of filter plates 1022, so that the ash removal effect on the filter plates 1022 is improved, and on the other hand, dust on the air traction air inlet member 202 is discharged towards the outside.

In combination, the heat dissipation mechanism 200 can limit dust to the inside of itself, and achieve dust-free heat dissipation to the switch.

Connection valve 201:

as shown in fig. 7 and 8, the connecting valve 201 includes a valve housing 2011, four sides of the valve housing 2011 are provided with connectors 2012, and the four connectors 2012 are in turn: the first nozzle is communicated with the air inlet pipeline 1023, the second nozzle is communicated with the first connecting pipeline 204, the third nozzle is communicated with the second connecting pipeline 205, and the fourth nozzle is communicated with the air inlet component 202.

A valve core 2014 is slidably mounted in the valve housing 2011, and an upper valve hole 2015 is formed in the valve core 2014, and the upper valve hole 2015 is used for communication between the first connector and the fourth connector.

The valve core 2014 is also provided with a first lower valve hole 2016 and a second lower valve hole 2017 which are positioned below the upper valve hole 2015, are staggered, the first valve hole 2016 is used for communicating the first nozzle with the third nozzle, and the second valve hole 2017 is used for communicating the second nozzle with the fourth nozzle.

The valve housing 2011 is further provided with a driving member 2013 for driving the valve core 2014 to move, where the driving member 2013 may be an electric telescopic rod technology or a linear screw rod stepper motor technology, which will not be described in detail.

As shown in fig. 9, the air outlet end of the blower 203 is inserted with a shutter 206, the shutter 206 is located at the outer side of the connection position between the second connection pipeline 205 and the blower 203, and the shutter 206 is connected with the valve core 2014 through a connecting rod 207.

The state switching of the heat dissipation mechanism 200 is specifically expressed as:

in the initial state, the upper valve hole 2015 is positioned between the four sets of nozzles, at this time, air is sequentially input towards the inside of the switch housing 100 through the air inlet pipeline 1023, the connecting valve 201, the air inlet member 202 and the air outlet end of the blower 203, and the heat dissipation mechanism 200 is in a heat dissipation state;

when switching is required, the driving member 2013 drives the valve core 2014 to move, so that the first lower valve hole 2016 and the second lower valve hole 2017 are positioned between the four groups of nozzles, and the upper valve hole 2015 is separated from the four groups of nozzles, meanwhile, the valve core 2014 moves together with the flashboard 206 through the connecting rod 207, the air outlet end of the blower 203 is plugged through the flashboard 206, at this time, air sequentially passes through the first connecting pipeline 204, the connecting valve 201, the air inlet member 202, the blower 203, the second connecting pipeline 205, the connecting valve 201, the air inlet pipeline 1023 and the air inlet unit 102 to be output, and the heat dissipation mechanism 200 is in an ash cleaning state.

Preferably, as shown in fig. 5, the air outlet end of the blower 203 is further provided with an air blowing pipe 300, and the end pipe orifice of the air blowing pipe 300 is opposite to the circuit elements with much heat generation in the exchange member, such as a circuit board, etc., so as to improve the heat dissipation effect.

Intake member 202:

as shown in fig. 10 to 16, the air intake member 202 includes an inner bracket 208 and a jacket case 211 provided on the inner bracket 208, the jacket case 211 having a cylindrical shape with both ends open.

Inside the outer casing 211 are provided a gas guide 212 for guiding air into the outer casing 211, and a dust removing unit 213 for electrostatically dust-removing the air.

Specifically, as shown in fig. 13, 14 and 16, the dust removing unit 213 includes a fixing ring 2132 coaxial with the outer casing 211 and connected to the inner bracket 208, the inner ring of the fixing ring 2132 communicates with the fourth nozzle, the end surface of the fixing ring 2132 facing away from the fourth nozzle is provided with a dust collecting pole 2133, the dust collecting pole 2133 is close to the inner wall of the outer casing 211, and the dust collecting poles 2133 are provided with a plurality of groups in array along the circumferential direction of the fixing ring 2132.

The outer part of the fixed ring 2132 is sleeved with a rotary fan blade 214 positioned in the outer shell 211, one end of the rotary fan blade 214 extends to form a driving ring, the driving ring is in sealing fit with the opening end of the outer shell 211, and the tail end of the driving ring extends out of the outer shell 211 and is in power connection with a motor 210 arranged on the outer surface of the outer shell 211.

The air inlet end of the blower 203 is connected with the open end of the outer casing 211, the air guide 212 comprises a connecting shaft 2121 coaxial with the outer casing 211, one end of the connecting shaft 2121 is closed and connected with a power shaft of the blower 203, the other end of the connecting shaft is open and coaxially provided with an air inlet disk 2122, the air inlet disk 2122 is connected with a ring groove arranged on the end face of the fixed ring 2132 through a bearing, the outer circular surface of the connecting shaft 2121 is extended with centrifugal blades 2123, two ends of the centrifugal blades 2123 are open and communicated with the connecting shaft 2121, and a plurality of centrifugal blades 2123 are arranged in an array along the circumferential direction of the connecting shaft 2121.

The end surface of the air intake plate 2122 is provided with a connecting hole communicated with the connecting shaft 2121, and the connecting hole is simultaneously communicated with the inner ring of the fixing ring 2132.

A corona pole 2131 is also coaxially installed in the connecting shaft 2121, one end of the corona pole 2131 penetrates through the connecting shaft 2121 and a power shaft of the blower 203, and electrostatic dust collection is achieved through cooperation of the corona pole 2131 and a dust collecting pole 2133.

When the blower 203 operates, air in the outer casing 211 is sucked, so that the air enters the connecting shaft 2121 through the connecting valve 201, the inner ring of the fixing ring 2132 and the connecting hole, then enters the outer casing 211 through the centrifugal blades 2123, and is pulled away by the blower 203, meanwhile, the power shaft of the blower 203 rotates at a high speed together with the connecting shaft 2121, the connecting shaft 2121 rotates together with the centrifugal blades 2123, dust in the air is thrown to the dust collecting pole 2133 when the air enters the outer casing 211 through the centrifugal blades 2123 under the action of centrifugal force, and the dust is adsorbed on the dust collecting pole 2133 based on the principle of electrostatic dust removal, so that dust removal of the air is realized, and dust-free heat dissipation of the exchanger is realized.

With long operation, dust on the dust collector 2133 and the filter plate 1022 accumulate, and therefore, periodic cleaning is required, in particular:

as shown in fig. 12, the lowest point of the outer circumferential surface of the outer casing 211 is extended with the ash discharge nozzle 2112, the ash discharge nozzle 2112 is adjacent to the fixing ring 2132, and the end of the ash discharge nozzle 2112 communicates with the ash discharge hole provided on the switch housing 100.

As shown in fig. 12 and 14, a collar 2134 is coaxially sleeved in the outer sleeve 211, a socket corresponding to the dust collecting pole 2133 is provided on the collar 2134, the dust collecting pole 2133 is sleeved in the socket, and a plurality of sockets are correspondingly provided.

The outer circumferential surface of the outer sleeve 211 is provided with an avoidance port 2111, and the extending direction of the avoidance port 2111 is parallel to the axial line of the outer sleeve 211.

The exterior of the outer housing 211 is provided with a connecting bracket 2135, the connecting bracket 2135 extending with a protrusion passing through the relief port 2111 and communicating with the collar 2134.

The inner bracket 208 is further provided with a linear module 209 for driving the connecting bracket 2135 to move along the axial line of the outer sleeve 211, and the linear module 209 can be an electric telescopic rod technology or a linear screw rod stepping motor technology.

The process of periodic cleaning appears to be:

firstly, electrostatic dust removal and heat dissipation are interrupted, the linear module 209 pulls the connecting bracket 2135 to move, the connecting bracket 2135 moves to move together with the lantern ring 2134, dust on the dust collecting pole 2133 is scraped through the lantern ring 2134, and the scraped dust is pulled to move together, when the lantern ring 2134 is in contact with the end face of the rotary fan blade 214, most dust is directly discharged through the dust discharge nozzle 2112, and a small part of dust still remains on the end face of the lantern ring 2134, at the moment, the motor 210 operates to drive the rotary fan blade 214 to rotate, the dust on the lantern ring 2134 is scraped, the scraped dust is pulled by the rotary fan blade 214 and discharged from the dust discharge nozzle 2112, and thus, the dust removal of the dust removing unit 213 is completed.

In the preferred embodiment, during the heat dissipation process, since the ash discharge nozzle 2112 is in communication with the outside, the outside air easily enters the outer casing 211 through the ash discharge nozzle 2112, and the air is not filtered and dedusted, so that excessive dust is easily accumulated in the dedusting unit 213, and an electromagnetic shielding careless leak is formed at the ash discharge nozzle 2112, so that:

as shown in fig. 12-14, a trigger switch 216 is disposed in the ash discharge nozzle 2112, for blocking the ash discharge nozzle 2112 during heat dissipation, and for opening the ash discharge nozzle 2112 during ash removal, specifically:

the ash discharge nozzle 2112 is provided with a jack 2113 at one side facing away from the lantern ring 2134, the trigger switch 216 comprises a sealing plate 2161 inserted in the jack 2113, a guide rod in sliding connection with the inner bracket 208 extends on the sealing plate 2161, a spring 2163 arranged between the inner bracket 208 and the sealing plate 2161 is sleeved outside the guide rod, and in an initial state, the sealing plate 2161 seals the ash discharge nozzle 2112.

The sealing plate 2161 has a male stem 2162 extending from a side thereof facing away from the guide stem, the male stem 2162 extending beyond the ash discharge mouth 2112 and being capable of contacting the connecting bracket 2135 during movement of the collar 2134.

In the ash removal process, the connecting bracket 2135 moves to contact the convex rod 2162, so as to push the convex rod 2162, enable the sealing plate 2161 to retreat, withdraw the sealing of the ash discharge nozzle 2112, compress the spring 2163 and open the ash discharge nozzle 2112;

after the ash removal is finished, the connecting bracket 2135 moves reversely to reset, and at the moment, the spring 2163 releases the elastic force to drive the sealing plate 2161 to seal the ash discharge nozzle 2112 again.

In addition, the sealing plate 2161 is made of a metal shielding material, so that electromagnetic shielding careless leakage is not formed at the ash discharge nozzle 2112.

In the preferred embodiment, since the outer circumferential surface of the outer casing 211 is provided with the avoiding port 2111, part of dust is thrown away by the centrifugal blade 2123 during the heat dissipation process, and then easily enters the interior of the switch from the avoiding port 2111, so that:

as shown in fig. 13, a shielding member 215 is provided at the avoidance port 2111, specifically:

as shown in fig. 15, the shielding member 215 includes a convex frame disposed on an outer circumferential surface of the outer casing 211 and a rotating shaft 2151 rotatably mounted on the convex frame, the rotating shaft 2151 is provided with two sets of rotating shafts and is respectively located at two ends of the avoidance port 2111, shielding pieces 2152 are disposed between the two sets of rotating shafts 2151, the shielding pieces 2152 are made of elastic metal, for example, a spring, that is, a rolled sheet steel bar, and the end portions of the shielding pieces 2152 are wound on the rotating shaft 2151.

The shielding sheet 2152 is provided with a penetrating opening 2153, and the protrusion penetrates through the penetrating opening 2153 and is connected with the shielding sheet 2152, and the shielding sheet 2152 is used for plugging the avoidance opening 2111.

In the heat dissipation process, dodge the mouth 2111 and shelter from piece 2152, in the deashing in-process, linking bridge 2135 removes and can bring and shelter from piece 2152 and remove together, makes a pivot 2151 do the unwrapping wire rotation, and another pivot 2151 is the line of receiving rotation, dodges mouthful 2111 and still shelter from piece 2152, and the same reason, after the deashing, linking bridge 2135 reverse movement resets, dodges mouthful 2111 and still shelter from piece 2152.

Preferably, the dust removing unit 213 achieves the dust removing purpose by using the electrostatic dust removing principle, but the electrostatic field is generated, so that the shielding sheet 2152 and the outer casing 211 are both provided with a metal shielding layer to electromagnetically shield the dust removing unit 213.

The working principle of the invention is as follows:

1. a heat dissipation process;

the heat radiation mechanism 200 is in a heat radiation state, the blower 203 is turned on, so that external air is sequentially input into the switch housing 100 through the air inlet unit 102, the connecting valve 201, the air inlet member 202 and the air outlet end of the blower 203, and the air in the switch housing 100 is discharged outwards through the air outlet unit 101, so that heat radiation of the switch is realized, and in the heat radiation process, dust passing through the filter plate 1022 is removed in an electrostatic dust removal mode by the dust removal unit 213 in the air inlet member 202, and the dust is adsorbed on the dust collecting pole 2133.

2. When operating for a long time, it is necessary to perform periodic cleaning:

firstly, electrostatic dust collection and heat dissipation are interrupted, the driving piece 2013 drives the valve core 2014 to move, so that the first lower valve hole 2016 and the second lower valve hole 2017 are positioned between the four groups of nozzles, the upper valve hole 2015 is separated from the four groups of nozzles, meanwhile, the valve core 2014 moves together with the flashboard 206 through the connecting rod 207, the air outlet end of the air blower 203 is plugged through the flashboard 206, and at the moment, the heat dissipation mechanism 200 is switched to a dust removing state;

then, the linear module 209 drives the connection bracket 2135 to move, the connection bracket 2135 moves together with the collar 2134, the dust on the dust collecting pole 2133 is scraped by the collar 2134 and the scraped dust is pulled to move together, when the collar 2134 is in contact with the end face of the rotary fan blade 214, most of the dust is directly discharged through the dust discharge nozzle 2112, and a small part of the dust is still remained on the end face of the collar 2134, at this time, the motor 210 operates to drive the rotary fan blade 214 to rotate, the dust on the collar 2134 is scraped, the scraped dust is pulled by the rotary fan blade 214 and discharged from the dust discharge nozzle 2112, so far, the dust removal of the dust removing unit 213 is completed, and meanwhile, the vibrator 1024 operates to shake off the dust on the filter plate 1022;

then, the blower 203 is operated, and the air sequentially passes through the first connecting pipeline 204, the connecting valve 201, the air inlet member 202, the blower 203, the second connecting pipeline 205, the connecting valve 201, the air inlet pipeline 1023 and the air inlet unit 102 to be output, and in the process, dust on the filter plate 1022 and around the filter plate 1022 is blown away by the air flow;

at the same time, the air flow is separated into a stream in the air inlet component 202, and the stream of air flows outwards through the ash discharge nozzle 2112, so that dust in the ash discharge nozzle 2112 is pulled to be output outwards, dust is prevented from being attached to the inner wall of the ash discharge nozzle 2112, and the cleaning effect is better;

after cleaning, the linear module 209 drives the connecting bracket 2135 to reversely move and reset, the driving piece 2013 drives the connecting valve 201 to reset, and heat dissipation is continuously repeated after resetting is completed.

The present invention is not limited to the above embodiments, but is capable of modification and variation in detail, and other modifications and variations can be made by those skilled in the art without departing from the scope of the present invention.

Claims (10)

1. An industrial switch with electromagnetic shield function, it includes the switch shell, is provided with the metal shielding layer on the switch shell, and the surface of switch shell is provided with air inlet and gas outlet, its characterized in that: the air inlet is provided with an air inlet unit, the air outlet is provided with an air outlet unit, the air inlet unit is matched with the air outlet unit to realize the flow of air in the switch shell and the metal shielding of the air outlet and the air inlet, a heat dissipation mechanism is further arranged in the switch shell and is arranged to be switched between a heat dissipation state and a dust removal state, when the heat dissipation mechanism is in the heat dissipation state, the heat dissipation mechanism is used for carrying out dust-free heat dissipation on the switch, and when the heat dissipation mechanism is in the dust removal state, the heat dissipation mechanism is used for carrying out automatic dust removal on a filter plate and the inside of the filter plate and pulling and removing generated dust to be output towards the outside.

2. An industrial switch with electromagnetic shielding function according to claim 1, wherein: the air inlet unit comprises an air inlet cover arranged in the air inlet, two groups of filter plates are arranged in the air inlet cover along the center line of the air inlet, the filter plates are made of metal shielding materials, filter holes are formed in the filter plates, the filter holes in the two groups of filter plates are staggered, and the air inlet cover is communicated with the heat dissipation mechanism through an air inlet pipeline.

3. An industrial exchange with electromagnetic shielding function according to claim 1 or 2, characterized in that: the unit of giving vent to anger includes interior separator and outer separator, and interior separator is including setting up the fixed plate in the gas outlet, and the one side of fixed plate orientation external is provided with a plurality of baffle a along width direction array, and outer separator is including setting up baffle b between two adjacent baffles a and setting up on the pore wall of gas outlet along fixed plate width direction, and baffle b corresponds and is provided with a plurality of, and a plurality of baffle b divide into multiunit baffle group, and a plurality of baffles b in every group baffle group are passed through the connecting plate and are realized the intercommunication towards one side external.

4. An industrial switch with electromagnetic shielding function according to claim 1, wherein: the heat dissipation mechanism comprises a connecting valve, an air inlet component and a blower, the outer surface of the exchanger shell is provided with an ash removal opening, the ash removal opening is provided with a filtering unit, the structure of the filtering unit is consistent with that of the air inlet unit, the tail end of an air inlet pipeline is communicated with the connecting valve, a first connecting pipeline is arranged between the connecting valve and the ash removal opening, a second connecting pipeline is arranged between the connecting valve and the air outlet end of the blower, the power shaft of the blower is communicated with the air inlet component, and the air inlet end of the air inlet component is communicated with the connecting valve.

5. An industrial switch with electromagnetic shielding function according to claim 4, wherein: the connecting valve comprises a valve shell, four side surfaces of the valve shell are respectively provided with a joint mouth, the four joint mouths are a joint mouth I, a joint mouth II, a joint mouth III and a joint mouth IV in sequence, the joint mouth I is communicated with the air inlet pipeline, the joint mouth II is communicated with the connecting pipeline I, the joint mouth III is communicated with the connecting pipeline II, and the joint mouth IV is communicated with the air inlet component;

the valve core is slidably arranged in the valve shell, an upper valve hole for communicating the first nozzle with the fourth nozzle is formed in the valve core, a lower valve hole I and a lower valve hole II which are arranged below the upper valve hole in a staggered mode are formed in the valve core, the lower valve hole I is used for communicating the first nozzle with the third nozzle, and the lower valve hole II is used for communicating the second nozzle with the fourth nozzle;

the valve shell is also provided with a driving piece for driving the valve core to move, the air outlet end of the air blower is inserted with a flashboard, the flashboard is positioned at the outer side of the joint of the connecting pipeline II and the air blower, and the flashboard is connected with the valve core through a connecting rod.

6. An industrial switch with electromagnetic shielding function according to claim 5, wherein: the air inlet component comprises an inner support and an outer sleeve arranged on the inner support, wherein the outer sleeve is in a cylindrical shape with two open ends, and a gas guide body used for guiding air into the outer sleeve and a dust removing unit used for carrying out electrostatic dust removal on the air are arranged in the outer sleeve.

7. An industrial switch with electromagnetic shielding function according to claim 6, wherein: the dust removing unit comprises a fixed ring which is coaxial with the outer sleeve shell and is connected with the inner bracket, the inner ring of the fixed ring is communicated with the fourth joint mouth, the end face of the fixed ring, which is away from the fourth joint mouth, is provided with a dust collecting electrode, the dust collecting electrode is close to the inner wall of the outer sleeve shell, a plurality of groups of dust collecting electrodes are arranged in an array manner along the circumferential direction of the fixed ring, the outer part of the fixed ring is sleeved with rotary fan blades positioned in the outer sleeve shell, one end of each rotary fan blade extends to form a driving ring, the driving ring is in sealing fit with the opening end of the outer sleeve shell, and the tail end of the driving ring extends out of the outer sleeve shell and is in power connection with a motor arranged on the outer surface of the outer sleeve shell;

the air inlet end of the blower is connected with the opening end of the outer sleeve shell, the air guide body comprises a connecting shaft which is coaxial with the outer sleeve shell, one end of the connecting shaft is closed and connected with a power shaft of the blower, the other end of the connecting shaft is open and is coaxially provided with an air inlet disc, the air inlet disc is connected with an annular groove arranged on the end face of the fixed ring through a bearing, the outer circular surface of the connecting shaft is extended with centrifugal blades, the two ends of the centrifugal blades are open and are communicated with the connecting shaft, the end face of the air inlet disc is provided with a connecting hole which is communicated with the connecting shaft, and the connecting hole is communicated with the inner ring of the fixed ring;

and a corona electrode is coaxially arranged in the connecting shaft, and one end of the corona electrode penetrates through the connecting shaft and the power shaft of the blower.

8. An industrial switch with electromagnetic shielding function according to claim 7, wherein: the lowest point of the outer circular surface of the outer sleeve shell is extended with an ash discharging nozzle, the ash discharging nozzle is close to the fixed ring, and the tail end of the ash discharging nozzle is communicated with an ash discharging hole arranged on the switch shell; the sleeve shell is internally and coaxially sleeved with a lantern ring, the lantern ring is provided with a socket corresponding to the dust collecting electrode, and the dust collecting electrode is sleeved in the socket;

the outer disc of the outer sleeve shell is provided with an avoidance port, the extending direction of the avoidance port is parallel to the axial lead of the outer sleeve shell, a connecting support is arranged outside the outer sleeve shell, a bulge extends on the connecting support, the bulge penetrates through the avoidance port and is communicated with the lantern ring, and a linear module used for driving the connecting support to move along the axial lead of the outer sleeve shell is further arranged on the inner support.

9. An industrial switch with electromagnetic shielding function according to claim 8, wherein: be provided with trigger switch in the ash discharge mouth, the jack has been seted up to one side that the ash discharge mouth deviates from the lantern ring, trigger switch is including inserting the shrouding of establishing in the jack, the shrouding is made for metal shielding material, extend on the shrouding have constitute sliding connection's guide arm with the inner support, the outside cover of guide arm is equipped with the spring that is located between inner support and the shrouding, under the initial condition, the shrouding carries out the shutoff to the ash discharge mouth, the shrouding deviates from one side of guide arm and extends there is the protruding pole, the protruding pole stretches out the ash discharge mouth and at the lantern ring removal in-process, can take place the contact with the linking bridge.

10. An industrial switch with electromagnetic shielding function according to claim 8, wherein: dodge mouth department and be provided with shielding part, shielding part is including setting up the flange at the overcoat shell outer disc and rotating the pivot of installing on the flange, and the pivot is provided with two sets of and is located the both ends of dodging the mouth respectively, is provided with between two sets of pivots and shelters from the piece, shelters from the piece and makes and the tip winding sets up in the pivot for elastic metal, has offered on the piece and wears to establish the mouth, and the arch passes wears to establish the mouth and is connected with sheltering from the piece, shelters from all to be provided with the metal shielding layer on piece, the overcoat shell.