阅读说明：本技术 一种直流pc级双电源开关灭弧结构 (Arc extinguishing structure of DC PC-level dual-power switch ) 是由 胡怀平 于 2020-12-17 设计创作，主要内容包括：本发明公开了一种直流PC级双电源开关灭弧结构,包括基座,所述基座内腔的一侧固定安装有散热箱,所述散热箱的正面固定安装有灭弧室。本发明通过微型气泵的设置,微型气泵的出气端把气体输送至输气管的内腔,制冷片的制冷端可对存液箱内的制冷液进行制冷,制冷液可对输气管进行降温,输气管对其内部的气体进行降温,然后把气体输送至散热箱的内腔,散热翅片吸收灭弧室内的热量,冷气对散热翅片进行吹风散热,通过动触导柱、静触导柱、灭弧线圈和灭弧室的相互配合使用,可增加灭弧效果,达到了减少灭弧时间,降低双电源开关内部的温度,不易对双电源开关的内部造成损坏,增加双电源开关的使用寿命的效果。(The invention discloses a direct-current PC-level dual-power switch arc extinguishing structure which comprises a base, wherein a heat dissipation box is fixedly installed on one side of an inner cavity of the base, and an arc extinguishing chamber is fixedly installed on the front side of the heat dissipation box. According to the invention, through the arrangement of the micro air pump, the air outlet end of the micro air pump conveys gas to the inner cavity of the gas conveying pipe, the refrigerating end of the refrigerating plate can refrigerate refrigerating liquid in the liquid storage box, the refrigerating liquid can cool the gas conveying pipe, the gas conveying pipe cools gas in the gas conveying pipe, then the gas is conveyed to the inner cavity of the heat dissipation box, the heat dissipation fins absorb heat in the arc extinguishing chamber, and air is blown to dissipate heat of the heat dissipation fins, and the arc extinguishing effect can be increased through the mutual matching use of the movable contact guide pillar, the stationary contact guide pillar, the arc extinguishing coil and the arc extinguishing chamber, so that the arc extinguishing time is reduced, the temperature in the dual-power switch is reduced, the damage to the interior of the dual-power switch is not easy to.)

1. The utility model provides a two power switch arc extinguishing structure of direct current PC level, includes base (1), its characterized in that: the heat dissipation device is characterized in that a heat dissipation box (12) is fixedly mounted on one side of an inner cavity of the base (1), an arc extinguish chamber (9) is fixedly mounted on the front side of the heat dissipation box (12), an insulating bearing (23) is fixedly mounted on one side of the arc extinguish chamber (9), a movable contact guide post (15) is connected to one side of the arc extinguish chamber (9) through the insulating bearing (23), a static contact guide post (10) is fixedly mounted on one side, away from the movable contact guide post (15), of the arc extinguish chamber (9), an arc extinguishing coil (17) is fixedly mounted on the inner wall of the inner cavity of the arc extinguish chamber (9), a liquid storage box (3) is fixedly mounted on one side of the top of the base (1), a miniature air pump (7) is fixedly mounted on one side of the top of the liquid storage box (3), a fixing shell (4) is fixedly mounted on the top of the miniature air pump (3), the one end of gas-supply pipe (16) runs through in proper order and deposits liquid case (3) and base (1) and extend to the inner chamber of base (1), the one end of gas-supply pipe (16) and the top intercommunication of radiating box (12), deposit the positive bottom fixed mounting of liquid case (3) and have refrigeration piece (5), the refrigeration end of refrigeration piece (5) runs through and deposits liquid case (3) and extends to the inner chamber of depositing liquid case (3), the equidistant fixed mounting in back of explosion chamber (9) has radiating fin (26), the back of radiating fin (26) runs through radiating box (12) and extends to the inner chamber of radiating box (12).

2. The arc extinguishing structure of the DC PC-level dual-power switch of claim 1, wherein: deposit one side intercommunication at liquid box (3) top and have notes liquid pipe (8), the top of annotating liquid pipe (8) is run through set casing (4) and is extended to the outside of set casing (4), the top fixed mounting who annotates liquid pipe (8) has the tube cap.

3. The arc extinguishing structure of the DC PC-level dual-power switch of claim 1, wherein: the air inlet end of the miniature air pump (7) penetrates through the fixed shell (4) and extends to the outside of the fixed shell (4), the air inlet end of the miniature air pump (7) is communicated with the filter box (6), and the front face of the filter box (6) is slidably inserted with the filter plate.

4. The arc extinguishing structure of the DC PC-level dual-power switch of claim 1, wherein: the shape of gas-supply pipe (16) is snakelike setting, one side intercommunication of heat dissipation case (12) bottom has blast pipe (11), the bottom of blast pipe (11) runs through base (1) and extends to the outside of base (1).

5. The arc extinguishing structure of the DC PC-level dual-power switch of claim 1, wherein: fixed block (14) are fixedly installed to the outside equidistance of explosion chamber (9), slotted hole (18) have been seted up in the front of fixed block (14), the inner chamber sliding connection of slotted hole (18) has fixed column (24), the back of fixed column (24) and the back fixed mounting of base (1) inner chamber.

6. The arc extinguishing structure of the DC PC-level dual-power switch of claim 1, wherein: one end of the static contact guide post (10) penetrates through the arc extinguish chamber (9) and extends to an inner cavity of the arc extinguish chamber (9), a first mounting seat (19) is fixedly mounted at one end of the static contact guide post (10), and a static contact (20) is fixedly mounted on one side of the first mounting seat (19).

7. The arc extinguishing structure of the DC PC-level dual-power switch of claim 1, wherein: one end of the movable contact guide post (15) penetrates through the arc extinguish chamber (9) and extends to an inner cavity of the arc extinguish chamber (9), a second mounting seat (22) is fixedly mounted at one end of the movable contact guide post (15), and a movable contact (21) is fixedly mounted on one side of the second mounting seat (22).

8. The arc extinguishing structure of the DC PC-level dual-power switch of claim 1, wherein: the front surface of the base (1) is fixedly provided with a protective shell (2), and the back surface of the protective shell (2) is bonded with an insulating pad (25).

9. The arc extinguishing structure of the DC PC dual-power switch of claim 8, wherein: the front fixed mounting of explosion chamber (9) has arc extinguishing chamber (13), the back of insulating pad (25) is laminated with the front of arc extinguishing chamber (13).

Technical Field

The invention relates to the technical field of PC (personal computer) level dual-power switches, in particular to an arc extinguishing structure of a DC PC level dual-power switch.

Background

The PC level dual power switch is used as an actuating element, comprises a main power supply (I power supply) contact component, an emergency power supply (II power supply) contact component, an automatic controller taking a singlechip as a core and a control mechanism with electromechanical interlocking, is a dual power switch with complete performance, safety, reliability, high automation degree and wide application range, is suitable for a power supply system of two power supplies (a common power supply N and a standby power supply or a generator power supply R) with rated current of 6A to 1250A or below and has the advantages of capability of alternating current of 50/60Hz, 690V and below, common low-voltage electrical appliance, common switching between two power supplies, and rapid switching between the other power supply when one power supply fails (power failure, undervoltage, overvoltage, phase failure and frequency deviation) so as to ensure the reliability and safety of power supply, the power supply device is widely applied to important places such as high-rise buildings, communities, hospitals, airports, wharfs, fire fighting, metallurgy, chemical engineering, textiles and the like which do not allow power failure, and realizes unattended continuous power supply.

In a direct-current power supply, a direct-current electric arc generated when contacts are separated is constant, the larger the current is, the larger the time constant is, the harder the electric arc is to extinguish, the arc guidance of the existing arc extinguishing structure is not strong, the arc extinguishing time is long, the temperature rise in the dual-power switch is improved, the damage to the interior of the dual-power switch is easy to cause, the use performance and the service life of the dual-power switch are influenced, and therefore the problem existing in the prior art is solved by the aid of the direct-current PC-level dual-power switch arc extinguishing structure.

Disclosure of Invention

The invention aims to provide an arc extinguishing structure of a direct current PC (personal computer) level dual-power switch, which aims to solve the problems that the arc extinguishing time is long, the temperature rise inside the dual-power switch is increased, the inside of the dual-power switch is easily damaged, and the service performance and the service life of the dual-power switch are influenced in the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme:

a direct-current PC-level dual-power switch arc extinguishing structure comprises a base, a heat dissipation box is fixedly mounted on one side of an inner cavity of the base, an arc extinguishing chamber is fixedly mounted on the front face of the heat dissipation box, an insulating bearing is fixedly mounted on one side of the arc extinguishing chamber, a movable contact guide post is connected to one side of the arc extinguishing chamber through the insulating bearing, a stationary contact guide post is fixedly mounted on one side, away from the movable contact guide post, of the arc extinguishing chamber, an arc extinguishing coil is fixedly mounted on the inner wall of the inner cavity of the arc extinguishing chamber, a liquid storage box is fixedly mounted on one side of the top of the base, a miniature air pump is fixedly mounted on one side of the top of the liquid storage box, a fixing shell is fixedly mounted on the top of the liquid storage box and located on the outer side of the miniature air pump, an air outlet end of the miniature air pump is communicated with an air delivery, the positive bottom fixed mounting of liquid storage box has the refrigeration piece, the refrigeration end of refrigeration piece runs through liquid storage box and extends to the inner chamber of liquid storage box, the back equidistance fixed mounting of explosion chamber has radiating fin, radiating fin's the back runs through the heat dissipation case and extends to the inner chamber of heat dissipation case.

Preferably, one side of the top of the liquid storage box is communicated with a liquid injection pipe, the top of the liquid injection pipe penetrates through the fixed shell and extends to the outside of the fixed shell, and a pipe cover is fixedly mounted at the top of the liquid injection pipe.

Preferably, the air inlet end of the miniature air pump penetrates through the fixed shell and extends to the outside of the fixed shell, the air inlet end of the miniature air pump is communicated with the filter box, and the filter plate is inserted in the front face of the filter box in a sliding mode.

Preferably, the shape of gas-supply pipe is snakelike setting, one side intercommunication of heat dissipation bottom of the case portion has the blast pipe, the bottom of blast pipe runs through the base and extends to the outside of base.

Preferably, the fixed block is fixedly installed at the outer side of the arc extinguish chamber in an equal distance mode, a slotted hole is formed in the front face of the fixed block, a fixed column is connected to the inner cavity of the slotted hole in a sliding mode, and the back face of the fixed column is fixedly installed with the back face of the inner cavity of the base.

Preferably, one end of the stationary contact guide post penetrates through the arc extinguish chamber and extends to an inner cavity of the arc extinguish chamber, a first mounting seat is fixedly mounted at one end of the stationary contact guide post, and a stationary contact is fixedly mounted on one side of the first mounting seat.

Preferably, one end of the movable contact guide post penetrates through the arc extinguish chamber and extends to an inner cavity of the arc extinguish chamber, a second mounting seat is fixedly mounted at one end of the movable contact guide post, and a movable contact is fixedly mounted on one side of the second mounting seat.

Preferably, a protective shell is fixedly mounted on the front surface of the base, and an insulating pad is bonded on the back surface of the protective shell.

Preferably, the front fixed mounting of explosion chamber has the arc extinguishing chamber, the back of insulating pad and the front laminating of arc extinguishing chamber.

The invention has the technical effects and advantages that: compared with the prior art, the arc extinguishing structure of the DC PC-level dual-power switch provided by the invention has the following advantages:

1. according to the invention, through the arrangement of the micro air pump, the micro air pump works, the air outlet end of the micro air pump conveys gas to the inner cavity of the gas conveying pipe, the refrigerating plate works, the refrigerating end of the refrigerating plate can refrigerate the refrigerating liquid in the liquid storage box, the refrigerating liquid can cool the gas conveying pipe, the gas conveying pipe cools the gas in the gas conveying pipe, then the gas is conveyed to the inner cavity of the heat dissipation box, the heat dissipation fins absorb heat in the arc extinguishing chamber, and the cold air blows and dissipates heat to the heat dissipation fins;

2. the first mounting seat can support the static contact and facilitate the mounting of the static contact through the arrangement of the first mounting seat, the arc extinguishing coil can extinguish arc entering the arc extinguishing chamber to increase the arc extinguishing effect in the arc extinguishing chamber, the second mounting seat facilitates the mounting of the movable contact, the heat dissipation box can support the arc extinguishing chamber and facilitate the arc extinguishing treatment of the arc extinguishing chamber to prevent the arc from damaging the interior of the dual-power switch, the movable contact and the static contact are matched with each other to perform arc extinguishing operation, the liquid storage box can store refrigerant liquid, the micro air pump can convey gas, the fixing shell can protect the micro air pump, the air conveying pipe can convey gas, the heat dissipation fins can absorb heat generated during arc extinguishing, the heat dissipation fins are positioned in the heat dissipation box to concentrate the heat in the heat dissipation box, and cold air in the air conveying pipe blows into the heat dissipation box, the hot gas in the heat dissipation box can be removed, and the heat dissipation fins are cooled simultaneously, so that the temperature in the arc extinguish chamber is reduced, the high temperature in the arc extinguish chamber cannot be transferred to the interior of the dual-power switch, the dual-power switch is damaged, and the hot gas can be discharged by the exhaust pipe;

annotate the liquid pipe and be convenient for pour into the refrigerant liquid into to the inside of depositing the liquid case, the tube cap can play the shutoff effect to annotating the liquid pipe, the filter cartridge can play the supporting role to the filter, the filter can filter the dust in the gas, prevent that the dust from getting into the inner chamber of miniature air pump, the inner chamber of fixed column insertion slotted hole, thereby fix the fixed block, the fixed block can play the fixed action to the explosion chamber, increase the stability of explosion chamber, the protecting sheathing can play the guard action to the inside of base, insulating pad can play the fixed action to the arc extinguishing chamber, increase the stability of arc extinguishing chamber, the arc extinguishing chamber can play the guard action to the explosion chamber.

Drawings

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

FIG. 2 is a schematic view of the interior of the liquid storage tank according to the present invention;

FIG. 3 is a schematic view of the internal structure of the arc-extinguishing chamber of the present invention;

FIG. 4 is an enlarged view of area A of FIG. 2 according to the present invention;

FIG. 5 is a schematic view of the interior of the heat dissipation case of the present invention.

In the figure: 1. a base; 2. a protective shell; 3. a liquid storage tank; 4. a stationary case; 5. a refrigeration plate; 6. a filter cartridge; 7. a micro air pump; 8. a liquid injection pipe; 9. an arc extinguishing chamber; 10. statically contacting the guide post; 11. an exhaust pipe; 12. a heat dissipation box; 13. an arc extinguishing chamber; 14. a fixed block; 15. moving the contact guide post; 16. a gas delivery pipe; 17. an arc extinguishing coil; 18. a slot; 19. a first mounting seat; 20. static contact; 21. a moving contact; 22. a second mounting seat; 23. An insulating bearing; 24. fixing a column; 25. an insulating pad; 26. and (4) radiating fins.

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. The specific embodiments described herein are merely illustrative of the invention and do not delimit the invention. 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. 1-5, the present invention provides a technical solution:

a direct current PC-level dual-power switch arc extinguishing structure comprises a base 1, wherein a heat dissipation box 12 is fixedly installed on one side of an inner cavity of the base 1, an arc extinguishing chamber 9 is fixedly installed on the front face of the heat dissipation box 12, an insulating bearing 23 is fixedly installed on one side of the arc extinguishing chamber 9, one side of the arc extinguishing chamber 9 is connected with a movable contact guide post 15 through the insulating bearing 23, a fixed contact guide post 10 is fixedly installed on one side, away from the movable contact guide post 15, of the arc extinguishing chamber 9, an arc extinguishing coil 17 is fixedly installed on the inner wall of the inner cavity of the arc extinguishing chamber 9, one end of the fixed contact guide post 10 penetrates through the arc extinguishing chamber 9 and extends to the inner cavity of the arc extinguishing chamber 9, a first installation seat 19 is fixedly installed at one end of the fixed contact guide post 10, a fixed contact 20 is fixedly installed at one side of the first installation seat 19, one end of the movable contact guide post 15;

through the arrangement of the first mounting seat 19, the first mounting seat 19 can support the static contact 20, so that the static contact 20 can be conveniently mounted, the arc extinguishing coil 17 can extinguish the arc entering the arc extinguishing chamber 9, the arc extinguishing effect in the arc extinguishing chamber 9 is improved, the second mounting seat 22 is convenient for mounting the movable contact 21, the heat dissipation box 12 can support the arc extinguishing chamber 9, the arc extinguishing chamber 9 is convenient for arc extinguishing treatment, the arc is prevented from damaging the interior of the dual-power switch, and the movable contact 21 and the static contact 20 are matched with each other to perform arc extinguishing operation;

one side of the top of the base 1 is fixedly provided with a liquid storage tank 3, one side of the top of the liquid storage tank 3 is fixedly provided with a miniature air pump 7, the top of the liquid storage tank 3 is fixedly provided with a fixed shell 4 positioned outside the miniature air pump 7, the air outlet end of the miniature air pump 7 is communicated with an air delivery pipe 16, one end of the air delivery pipe 16 sequentially penetrates through the liquid storage tank 3 and the base 1 and extends to the inner cavity of the base 1, one end of the air delivery pipe 16 is communicated with the top of the heat dissipation tank 12, the back of the arc extinguish chamber 9 is fixedly provided with heat dissipation fins 26 at equal intervals, the back of the heat dissipation fins 26 penetrates through the heat dissipation tank 12 and extends to the inner cavity of the heat dissipation tank 12, the shape of the air delivery pipe 16 is in a snake shape, one side of the bottom of the heat dissipation tank;

through the arrangement of the liquid storage box 3, the liquid storage box 3 can store refrigerating liquid, the miniature air pump 7 can convey gas, the fixing shell 4 can protect the miniature air pump 7, the air conveying pipe 16 can convey gas, the radiating fins 26 can absorb heat generated when the arc extinguishing chamber 9 carries out arc extinguishing, the radiating fins 26 are positioned inside the radiating box 12, so that the heat is concentrated inside the radiating box 12, cold air inside the air conveying pipe 16 is blown into the radiating box 12, hot air inside the radiating box 12 can be discharged, and meanwhile, the radiating fins 26 are cooled, so that the temperature inside the arc extinguishing chamber 9 is reduced, high temperature inside the arc extinguishing chamber 9 cannot be transferred to the inside of the dual-power switch, the dual-power switch is damaged, and the exhaust pipe 11 can discharge the hot air;

one side of the top of the liquid storage box 3 is communicated with a liquid injection pipe 8, the top of the liquid injection pipe 8 penetrates through the fixed shell 4 and extends to the outside of the fixed shell 4, a pipe cover is fixedly mounted at the top of the liquid injection pipe 8, the air inlet end of the miniature air pump 7 penetrates through the fixed shell 4 and extends to the outside of the fixed shell 4, the air inlet end of the miniature air pump 7 is communicated with a filter box 6, and a filter plate is inserted in the front of the filter box 6 in a sliding mode;

through the arrangement of the liquid injection pipe 8, the liquid injection pipe 8 is convenient for injecting refrigerating liquid into the liquid storage box 3, the pipe cover can play a role in plugging the liquid injection pipe 8, the filter box 6 can play a role in supporting the filter plate, and the filter plate can filter dust in gas to prevent the dust from entering the inner cavity of the micro air pump 7;

fixed blocks 14 are fixedly installed on the outer side of the arc extinguish chamber 9 at equal intervals, a slotted hole 18 is formed in the front of each fixed block 14, a fixed column 24 is connected to the inner cavity of each slotted hole 18 in a sliding mode, and the back of each fixed column 24 is fixedly installed with the back of the inner cavity of the base 1;

through the arrangement of the fixing column 24, the fixing column 24 is inserted into the inner cavity of the slotted hole 18, so that the fixing block 14 is fixed, the fixing block 14 can fix the arc extinguish chamber 9, and the stability of the arc extinguish chamber 9 is improved;

the front surface of the base 1 is fixedly provided with a protective shell 2, the back surface of the protective shell 2 is bonded with an insulating pad 25, the front surface of the arc extinguishing chamber 9 is fixedly provided with an arc extinguishing cover 13, and the back surface of the insulating pad 25 is attached to the front surface of the arc extinguishing cover 13;

through the setting of protecting crust 2, protecting crust 2 can play the guard action to the inside of base 1, and insulating pad 25 can play the fixed action to arc-extinguishing chamber 13, increases arc-extinguishing chamber 13's stability, and arc-extinguishing chamber 9 can be played the guard action to arc-extinguishing chamber 13.

In specific implementation, the pipe cover is removed, the fixing of the liquid injection pipe 8 is released, refrigerant liquid to be used is injected into the liquid storage box 3 through the liquid injection pipe 8, then the pipe cover is covered, the micro air pump 7 works, the air inlet end of the micro air pump 7 extracts external air through the filter box 6, the filter plate can filter dust in the air to prevent the dust from entering the inner cavity of the micro air pump 7, the air outlet end of the micro air pump 7 conveys the air to the inner cavity of the air conveying pipe 16, the refrigerating sheet 5 works, the refrigerating end of the refrigerating sheet 5 can refrigerate the refrigerant liquid in the liquid storage box 3, the refrigerant liquid can cool the air conveying pipe 16, the air conveying pipe 16 cools the air in the air conveying pipe, then the air is conveyed to the inner cavity of the heat dissipation box 12, the heat dissipation fins 26 can absorb heat generated during arc extinction of the arc extinction chamber 9, the heat dissipation fins 26 are positioned in the heat dissipation box 12 to concentrate the heat inside the heat dissipation box 12, cold air in the air delivery pipe 16 is blown into the heat dissipation box 12, hot air in the heat dissipation box 12 can be removed, and meanwhile, the heat dissipation fins 26 are cooled, so that the temperature in the arc extinguish chamber 9 is reduced, high temperature in the arc extinguish chamber 9 cannot be transferred to the interior of the dual-power switch, the dual-power switch is damaged, and the hot air can be discharged by the exhaust pipe 11;

through movable contact guide pillar 15, stationary contact guide pillar 10, the use of mutually supporting of arc extinguishing coil 17 and explosion chamber 9, increase the arc extinguishing effect in explosion chamber 9, fixed column 24 inserts the inner chamber of slotted hole 18, thereby fix fixed block 14, fixed block 14 can play the fixed action to explosion chamber 9, increase the stability of explosion chamber 9, protecting sheathing 2 can play the guard action to the inside of base 1, insulating pad 25 can play the fixed action to arc extinguishing chamber 13, increase the stability of arc extinguishing chamber 13, arc extinguishing chamber 13 can play the guard action to explosion chamber 9.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.