CN111725710A - Auxiliary air inlet device for internal ventilation of power distribution cabinet - Google Patents
Auxiliary air inlet device for internal ventilation of power distribution cabinet Download PDFInfo
- Publication number
- CN111725710A CN111725710A CN202010584650.0A CN202010584650A CN111725710A CN 111725710 A CN111725710 A CN 111725710A CN 202010584650 A CN202010584650 A CN 202010584650A CN 111725710 A CN111725710 A CN 111725710A
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- Prior art keywords
- driving
- group
- shaft
- outer shell
- air
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- 238000009423 ventilation Methods 0.000 title claims abstract description 16
- 238000001816 cooling Methods 0.000 claims abstract description 35
- 239000000428 dust Substances 0.000 claims abstract description 15
- 230000005540 biological transmission Effects 0.000 claims description 56
- 230000007246 mechanism Effects 0.000 claims description 37
- 230000001360 synchronised effect Effects 0.000 claims description 20
- 230000001629 suppression Effects 0.000 claims description 5
- 230000002401 inhibitory effect Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000002337 anti-port Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000004870 electrical engineering Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows
- F04D25/166—Combinations of two or more pumps ; Producing two or more separate gas flows using fans
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
Abstract
The invention discloses an auxiliary air inlet device for ventilation in a power distribution cabinet, relates to the technical field of power distribution cabinets, and solves the problems that a cooling fan of the conventional power distribution cabinet has high local air speed, a line at a contact part of the line and an electric appliance is ignited due to large air flow, and external air enters through a gap and an air inlet and is easy to bring dust; the top of the outer shell is fixedly connected with a group of driving motors; a group of driving shafts are rotatably connected inside the left side wall and the right side wall of the outer shell; the left inner side and the right inner side of the outer shell are both rotatably connected with a plurality of groups of air deflectors; the inner sides of the left rear part and the right rear part of the outer shell are rotatably connected with a group of air guide driving shafts. The device has effectually avoided the circuit and has had the problem that great air current can arouse the circuit to strike sparks with the contact site of electrical apparatus, maintains the box internal and external atmospheric pressure unanimity simultaneously, and the effectual inside atmospheric pressure of having avoided the switch board leads to gap or air intake to get into the problem of dust easily.
Description
Technical Field
The invention relates to the technical field of power distribution cabinets, in particular to an auxiliary air inlet device for ventilation in a power distribution cabinet.
Background
Can use the switch board often in electrical engineering, electric elements can generate heat in work, if electric elements overheat the problem that electric elements and parts burn out can appear, generally can install the thermantidote on the switch board in order to cool down for electric elements, increase the radiating rate.
For example, application No.: the invention discloses a power distribution cabinet, which comprises a cabinet body with an opening at the front end and a cabinet door connected to the front end of the cabinet body through a hinge, wherein the cabinet body is provided with a front opening; a slope plate with a high middle part and low two sides is formed at the bottom in the cabinet body; a stepping motor is arranged at the lower part of a rear cabinet plate positioned at the rear side of the cabinet body and positioned above the middle position of the slope plate, and an output shaft of the stepping motor is connected with a refrigerating sheet assembly horizontally arranged along the front and rear directions of the cabinet body; a front baffle is arranged at the lower part of the front side of the cabinet body, and a first guide plate is fixedly connected to the left upper part of the refrigerating sheet assembly in the cabinet body; a baffle is fixedly connected to the right side of the refrigerating sheet assembly in the cabinet body, an upper air inlet is formed between the first guide plate and the second guide plate on the left side of the cabinet body, and an upper fan is installed in the upper air inlet; an upper air inlet plate is connected to the outer wall of the left side of the cabinet body above the upper air inlet, and air outlets are formed on the left side and the right side of the upper part of the cabinet body; the invention has simple and compact structure and is suitable for being used in various complex working condition environments.
Based on the above, the cooling fans of the existing power distribution cabinet are generally arranged in a centralized manner, so that the local wind speed is high, the line at the contact part of the line and the electrical appliance is ignited due to large airflow, and the general cooling fans are generally arranged in an air exhaust manner, so that the air pressure in the power distribution cabinet is smaller than the external air pressure during the work, and the external air enters the power distribution cabinet through the gap and the air inlet and is easy to bring dust; therefore, the existing requirements are not met, and an auxiliary air inlet device for ventilation in a power distribution cabinet is provided for the requirement.
Disclosure of Invention
The invention aims to provide an auxiliary air inlet device for ventilation in a power distribution cabinet, and aims to solve the problems that the cooling fans of the existing power distribution cabinet, which are provided in the background art, are generally arranged in a centralized mode, so that the local air speed is high, the contact part of a circuit and an electric appliance can be ignited due to large air flow, the general cooling fans are generally arranged in an air exhaust mode, the air pressure in the power distribution cabinet is smaller than the external air pressure in the work process, and the external air can enter through a gap and an air inlet and is easy to bring dust.
In order to achieve the purpose, the invention provides the following technical scheme: an auxiliary air inlet device for ventilation in a power distribution cabinet comprises an outer shell; the top of the outer shell is fixedly connected with a group of driving motors; a group of driving shafts are rotatably connected inside the left side wall and the right side wall of the outer shell; a group of cooling fans are rotatably connected to the inner parts of the left side wall and the right side wall of the outer shell; the left inner side and the right inner side of the outer shell are both rotatably connected with a plurality of groups of air deflectors; the front end surface and the rear end surface of the air deflector on the same side are hinged with a group of swing connecting rods together; the left inner side and the right inner side of the outer shell are both rotatably connected with a group of intermediate transmission shafts; the inner sides of the left rear part and the right rear part of the outer shell are rotatably connected with a group of air guide driving shafts.
Preferably, driving motor is still including the driving pulley, and a set of driving pulley of coaxial fixedly connected with in driving motor's the pivot, and the driving shaft is still including pivot driving pulley, and the coaxial fixedly connected with in top of driving shaft has a set of pivot driving pulley, and the common winding in the outside of driving pulley and pivot driving pulley has a set of synchronous drive belt, constitutes synchronous drive belt drive mechanism jointly.
Preferably, the drive shaft is provided with a plurality of groups of fan drive bevel gears and fan driven bevel gears, the fan drive bevel gears are evenly distributed on the drive shaft, the cooling fan is further provided with a fan driven bevel gear, a group of fan driven bevel gears are coaxially and fixedly connected with the inner side of the cooling fan at the rear, and the fan drive bevel gear and the fan driven bevel gears are meshed to form a bevel gear transmission mechanism.
Preferably, the thermantidote is still including the fan with moving the band pulley, the inboard coaxial fixedly connected with of thermantidote a set of fan with moving the band pulley, and the fan of the two sets of thermantidote of homonymy co-altitude has a set of synchronous drive belt with moving the band pulley outside winding jointly, constitutes synchronous drive belt drive mechanism jointly.
Preferably, the driving shaft further comprises a wind guide driving bevel gear, the middle part of the driving shaft is coaxially and fixedly connected with a group of wind guide driving bevel gears, the intermediate transmission shaft further comprises a middle shaft driven bevel gear, the front end face of the intermediate transmission shaft is coaxially and fixedly connected with a group of middle shaft driven bevel gears, and the wind guide driving bevel gear and the middle shaft driven bevel gears are meshed to form a bevel gear transmission mechanism.
Preferably, the middle transmission shaft further comprises a middle shaft driving bevel gear, the rear end face of the middle transmission shaft is coaxially and fixedly connected with a group of middle shaft driving bevel gears, the air guide driving shaft further comprises an air guide driven bevel gear, the outer side of the air guide driving shaft is coaxially and fixedly connected with a group of air guide driven bevel gears, and the middle shaft driving bevel gear and the air guide driven bevel gear are meshed to form a bevel gear transmission mechanism.
Preferably, the swing connecting rod further comprises a push rod, two groups of push rods are arranged in the middle of the two groups of swing connecting rods at the rear part, the air guide driving shaft further comprises a cam, a group of eccentrically arranged cams is fixedly connected to the inner side of the air guide driving shaft, and the cam and the push rods jointly form a cam mechanism.
Preferably, the air deflectors on the same side are arranged in parallel, the swinging connecting rod is arranged vertically, and a double-rocker mechanism is formed among the air deflectors, the swinging connecting rod and the outer shell.
Preferably, the shell body is still including holding down wind net, dust screen, and the left and right sides of shell body is inside all to be fixed to be provided with a set of holding down wind net, and the holding down wind net is porous structure, and the terminal surface all is provided with the multiunit dust screen about the shell body.
Compared with the prior art, the invention has the beneficial effects that:
the device is through setting up the thermantidote distributing type, prevents that the thermantidote from concentrating and causing the wind speed too big, and the device can wobbling aviation baffle through setting up simultaneously, leads to the flow direction of air current, prevents that the air current from concentrating to blow to a direction and causes the too big situation of local air current to reduce the velocity of flow of air current through setting up the grid of inhibiting wind, the effectual circuit of having avoided has great air current can arouse the problem that the circuit was struck sparks with the contact site of electrical apparatus.
The device has realized the thermantidote while antiport of the left and right sides through adopting bevel gear transmission and synchronous drive belt drive mechanism, has realized that one side air supply opposite side is aired exhaust, guarantees that air supply volume and air output are the same, maintains the box internal and external atmospheric pressure unanimity, the effectual inside atmospheric pressure of switch board of having avoided leads to gap or air intake to admit air the problem that gets into the dust easily.
The device can effectually reduce the circuit and with the air current intensity of the contact site of electrical apparatus, the effectual circuit of having avoided has great air current with the contact site of electrical apparatus to arouse the problem that the circuit struck sparks, guarantees simultaneously that air supply volume and air output are the same, maintains the box internal and external atmospheric pressure unanimous, the effectual inside atmospheric pressure of having avoided the switch board low problem that leads to gap or air intake entering dust easily.
Drawings
FIG. 1 is a schematic side view of the present invention;
FIG. 2 is a schematic view of the internal axial side structure of the present invention;
FIG. 3 is a schematic side view of the wind deflector installation shaft of the present invention;
FIG. 4 is an enlarged view of a portion of C in FIG. 3 according to the present invention;
fig. 5 is a schematic side view of the wind guide driving shaft mounting shaft of the present invention;
FIG. 6 is a schematic side view of the cooling fan transmission shaft according to the present invention;
FIG. 7 is an enlarged view of a portion of FIG. 6;
FIG. 8 is an enlarged view of a portion of the structure of FIG. 6B;
in the figure: 1. an outer housing; 101. a wind suppression net; 102. a dust screen; 2. a drive motor; 201. a drive pulley; 3. a drive shaft; 301. the rotating shaft drives the belt pulley; 302. a fan drive bevel gear; 303. the wind guide drives the bevel gear; 4. a cooling fan; 401. a fan driven bevel gear; 402. the fan simultaneously drives the belt wheel; 5. an air deflector; 6. a swing link; 601. a push rod; 7. an intermediate transmission shaft; 701. a middle shaft driven bevel gear; 702. a middle shaft drive bevel gear; 8. a wind guide driving shaft; 801. the wind guide driven bevel gear; 802. a cam.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1 to 8, an embodiment of the present invention includes: an auxiliary air inlet device for ventilation in a power distribution cabinet comprises an outer shell 1; the top of the outer shell 1 is fixedly connected with a group of driving motors 2; the driving motor 2 further comprises a driving belt wheel 201, a group of driving belt wheels 201 are coaxially and fixedly connected to a rotating shaft of the driving motor 2, the driving shaft 3 further comprises a rotating shaft transmission belt wheel 301, a group of rotating shaft transmission belt wheels 301 are coaxially and fixedly connected to the top of the driving shaft 3, a group of synchronous transmission belts are wound on the outer sides of the driving belt wheels 201 and the rotating shaft transmission belt wheels 301 together to form a synchronous transmission belt transmission mechanism, and the driving motor 2 drives the two groups of driving shafts 3 to synchronously rotate through the synchronous transmission belt transmission mechanism in use; a group of driving shafts 3 are rotatably connected inside the left side wall and the right side wall of the outer shell 1; a group of cooling fans 4 are rotatably connected to the inner parts of the left side wall and the right side wall of the outer shell 1; the driving shaft 3 further comprises a fan driving bevel gear 302, a plurality of groups of fan driving bevel gears 302 are uniformly distributed on the driving shaft 3, the cooling fan 4 further comprises a fan driven bevel gear 401, a group of fan driven bevel gears 401 are coaxially and fixedly connected to the inner side of the cooling fan 4 positioned at the rear, the fan driving bevel gear 302 and the fan driven bevel gears 401 are meshed to jointly form a bevel gear transmission mechanism, when the driving shaft 3 rotates in use, the driving shaft 3 drives the cooling fan 4 to rotate through the bevel gear transmission mechanism, meanwhile, the cooling fans 4 at the left side and the right side are respectively positioned at the two sides of the driving shaft 3, the directions of the cooling fans 4 at the left side and the right side are opposite, air supply at one side and air exhaust at the other side are realized through the cooling fans 4 at the left; the cooling fan 4 further comprises a fan synchronous belt wheel 402, the inner side of the cooling fan 4 is coaxially and fixedly connected with a group of fan synchronous belt wheels 402, a group of synchronous transmission belts are wound on the outer sides of the fan synchronous belt wheels 402 of the two groups of cooling fans 4 at the same height and at the same side together to form a synchronous transmission belt transmission mechanism, and the group of cooling fans 4 at the rear side drive the group of cooling fans 4 at the front side to synchronously rotate through the synchronous transmission belt transmission mechanism in use; the left inner side and the right inner side of the outer shell 1 are both rotatably connected with a plurality of groups of air deflectors 5; the air deflectors 5 on the same side are arranged in parallel, the swinging connecting rod 6 is arranged vertically, and the air deflectors 5, the swinging connecting rod 6 and the outer shell 1 form a double-rocker mechanism together; the front end surface and the rear end surface of the air deflector 5 on the same side are hinged with a group of swing connecting rods 6 together; the swing connecting rod 6 further comprises a push rod 601, two groups of push rods 601 are arranged in the middle of the two groups of swing connecting rods 6 at the rear, the air guide driving shaft 8 further comprises a cam 802, a group of eccentrically arranged cams 802 are fixedly connected to the inner side of the air guide driving shaft 8, the cam 802 and the push rods 601 jointly form a cam mechanism, and when the air guide driving shaft 8 rotates in use, the air guide driving shaft 8 drives the swing connecting rods 6 to swing up and down through the cam mechanism; the left inner side and the right inner side of the outer shell 1 are both rotatably connected with a group of intermediate transmission shafts 7; the driving shaft 3 further comprises a wind guide driving bevel gear 303, the middle part of the driving shaft 3 is coaxially and fixedly connected with a group of wind guide driving bevel gears 303, the intermediate transmission shaft 7 further comprises a middle shaft driven bevel gear 701, the front end face of the intermediate transmission shaft 7 is coaxially and fixedly connected with a group of middle shaft driven bevel gears 701, the wind guide driving bevel gears 303 and the middle shaft driven bevel gears 701 are meshed to form a bevel gear transmission mechanism together, and when the driving shaft 3 rotates in use, the driving shaft 3 drives the intermediate transmission shaft 7 to rotate through the bevel gear transmission mechanism; the middle transmission shaft 7 further comprises a middle shaft driving bevel gear 702, the rear end face of the middle transmission shaft 7 is coaxially and fixedly connected with a group of middle shaft driving bevel gears 702, the air guide driving shaft 8 further comprises an air guide driven bevel gear 801, the outer side of the air guide driving shaft 8 is coaxially and fixedly connected with a group of air guide driven bevel gears 801, the middle shaft driving bevel gears 702 and the air guide driven bevel gears 801 are meshed to form a bevel gear transmission mechanism together, and when the middle transmission shaft 7 rotates in use, the middle transmission shaft 7 drives the air guide driving shaft 8 to rotate through the bevel gear transmission mechanism; the left and right inner sides of the rear part of the outer shell 1 are rotatably connected with a group of air guide driving shafts 8.
Further, shell body 1 is still including inhibiting wind net 101, dust screen 102, the inside a set of inhibiting wind net 101 that all fixes being provided with in the left and right sides of shell body 1, inhibiting wind net 101 is porous structure, the terminal surface all is provided with multiunit dust screen 102 about shell body 1, in use reduces the wind speed in the switch board through inhibiting wind net 101, prevent the too big production of the phenomenon of striking sparks that leads to of wind speed, the protection jack-up components and parts prevent through dust screen 102 that external dust from getting into in the block terminal.
The working principle is as follows: when the air-cooling fan is used, the driving motor 2 drives the two groups of driving shafts 3 to synchronously rotate through the synchronous transmission belt transmission mechanism, the driving shafts 3 drive the cooling fans 4 to rotate through the bevel gear transmission mechanism, the rear group of cooling fans 4 drive the front group of cooling fans 4 to synchronously rotate through the synchronous transmission belt transmission mechanism, meanwhile, the cooling fans 4 on the left side and the right side are respectively positioned on the two sides of the driving shafts 3, the directions of the cooling fans 4 on the left side and the right side are opposite, one side is used for supplying air and the other side is used for exhausting air through the cooling fans 4 on the left side and the right side, the same air; simultaneously drive shaft 3 passes through bevel gear drive mechanism and drives intermediate drive shaft 7 and rotate, intermediate drive shaft 7 passes through bevel gear drive mechanism and drives wind guide drive shaft 8 and rotate, wind guide drive shaft 8 drives swing connecting rod 6 luffing motion through cam mechanism, swing connecting rod 6 drives all aviation baffles 5 simultaneous oscillations through two rocker mechanisms, carry out the water conservancy diversion to the air current, prevent that the air current from blowing towards a direction for a long time, and reduce the wind speed in the switch board through the air suppression net 101, prevent the too big production of the phenomenon of striking sparks that leads to of wind speed, protect electrical components.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (9)
1. The utility model provides an supplementary air inlet unit that is used for inside taking a breath of switch board which characterized in that: comprises an outer shell (1); the top of the outer shell (1) is fixedly connected with a group of driving motors (2); a group of driving shafts (3) are rotatably connected to the inner parts of the left side wall and the right side wall of the outer shell (1); a group of cooling fans (4) are rotatably connected to the inner parts of the left side wall and the right side wall of the outer shell (1); the left inner side and the right inner side of the outer shell (1) are both rotatably connected with a plurality of groups of air deflectors (5); the front end surface and the rear end surface of the air deflector (5) on the same side are hinged with a group of swing connecting rods (6) together; the left inner side and the right inner side of the outer shell (1) are both rotatably connected with a group of intermediate transmission shafts (7); the inner sides of the left rear part and the right rear part of the outer shell (1) are rotatably connected with a group of air guide driving shafts (8).
2. An auxiliary air inlet device for ventilation of the interior of a power distribution cabinet according to claim 1, characterized in that: the driving motor (2) is characterized by further comprising a driving belt wheel (201), a group of driving belt wheels (201) are coaxially and fixedly connected to the rotating shaft of the driving motor (2), the driving shaft (3) is further comprising a rotating shaft driving belt wheel (301), a group of rotating shaft driving belt wheels (301) are coaxially and fixedly connected to the top of the driving shaft (3), and a group of synchronous driving belts are wound on the outer sides of the driving belt wheels (201) and the rotating shaft driving belt wheels (301) together to form a synchronous driving belt transmission mechanism.
3. An auxiliary air inlet device for ventilation of the interior of a power distribution cabinet according to claim 1, characterized in that: the driving shaft (3) further comprises a fan driving bevel gear (302), a plurality of groups of fan driving bevel gears (302) are uniformly distributed on the driving shaft (3), the cooling fan (4) further comprises a fan driven bevel gear (401), a group of fan driven bevel gears (401) are coaxially and fixedly connected with the inner side of the cooling fan (4) located at the rear, and the fan driving bevel gear (302) and the fan driven bevel gears (401) are meshed to jointly form a bevel gear transmission mechanism.
4. An auxiliary air inlet device for ventilation of the interior of a power distribution cabinet according to claim 1, characterized in that: the cooling fan (4) is characterized by further comprising a fan same-moving belt wheel (402), a group of fan same-moving belt wheels (402) are fixedly connected to the inner side of the cooling fan (4) in a coaxial mode, a group of synchronous transmission belts are wound on the outer sides of the fan same-moving belt wheels (402) of the two groups of cooling fans (4) at the same height on the same side, and a synchronous transmission belt transmission mechanism is formed jointly.
5. An auxiliary air inlet device for ventilation of the interior of a power distribution cabinet according to claim 1, characterized in that: the air guide driving bevel gear transmission mechanism is characterized in that the driving shaft (3) further comprises an air guide driving bevel gear (303), a group of air guide driving bevel gears (303) is coaxially and fixedly connected to the middle of the driving shaft (3), the intermediate transmission shaft (7) further comprises a middle shaft driven bevel gear (701), a group of middle shaft driven bevel gears (701) are coaxially and fixedly connected to the front end face of the intermediate transmission shaft (7), and the air guide driving bevel gears (303) and the middle shaft driven bevel gears (701) are meshed to form a bevel gear transmission mechanism.
6. An auxiliary air inlet device for ventilation of the interior of a power distribution cabinet according to claim 1, characterized in that: the middle transmission shaft (7) further comprises a middle shaft driving bevel gear (702), the rear end face of the middle transmission shaft (7) is coaxially and fixedly connected with a group of middle shaft driving bevel gears (702), the air guide driving shaft (8) further comprises an air guide driven bevel gear (801), the outer side of the air guide driving shaft (8) is coaxially and fixedly connected with a group of air guide driven bevel gears (801), and the middle shaft driving bevel gears (702) and the air guide driven bevel gears (801) are meshed to form a bevel gear transmission mechanism together.
7. An auxiliary air inlet device for ventilation of the interior of a power distribution cabinet according to claim 1, characterized in that: the air guide mechanism is characterized in that the swing connecting rod (6) further comprises a push rod (601), two groups of push rods (601) are arranged in the middle of two groups of swing connecting rods (6) at the rear part, the air guide driving shaft (8) further comprises a cam (802), a group of eccentrically arranged cams (802) are fixedly connected to the inner side of the air guide driving shaft (8), and the cams (802) and the push rods (601) jointly form a cam mechanism.
8. An auxiliary air inlet device for ventilation of the interior of a power distribution cabinet according to claim 1, characterized in that: the air deflectors (5) on the same side are arranged in parallel, the swinging connecting rod (6) is arranged vertically, and a double-rocker mechanism is formed among the air deflectors (5), the swinging connecting rod (6) and the outer shell (1).
9. An auxiliary air inlet device for ventilation of the interior of a power distribution cabinet according to claim 1, characterized in that: the outer shell (1) is characterized by further comprising a wind suppression net (101) and a dust screen (102), wherein a group of wind suppression nets (101) are fixedly arranged inside the left side and the right side of the outer shell (1), the wind suppression nets (101) are of a porous structure, and a plurality of groups of dust screens (102) are arranged on the left end face and the right end face of the outer shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010584650.0A CN111725710B (en) | 2020-06-24 | 2020-06-24 | Auxiliary air inlet device for internal ventilation of power distribution cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010584650.0A CN111725710B (en) | 2020-06-24 | 2020-06-24 | Auxiliary air inlet device for internal ventilation of power distribution cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111725710A true CN111725710A (en) | 2020-09-29 |
| CN111725710B CN111725710B (en) | 2022-06-17 |
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| CN202010584650.0A Active CN111725710B (en) | 2020-06-24 | 2020-06-24 | Auxiliary air inlet device for internal ventilation of power distribution cabinet |
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| CN210723905U (en) * | 2019-12-17 | 2020-06-09 | 江苏顺继电气有限公司 | It is outdoor with switch board that has rain-proof dampproofing dehumidification function |
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| CN111725710B (en) | 2022-06-17 |
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