CN112928654B - Automatically controlled switch board with heat dissipation function - Google Patents
Automatically controlled switch board with heat dissipation function Download PDFInfo
- Publication number
- CN112928654B CN112928654B CN202110114070.XA CN202110114070A CN112928654B CN 112928654 B CN112928654 B CN 112928654B CN 202110114070 A CN202110114070 A CN 202110114070A CN 112928654 B CN112928654 B CN 112928654B
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- Prior art keywords
- cabinet body
- sodium azide
- heat dissipation
- rotating shaft
- mounting
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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
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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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- 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
- H02B1/306—Accessories, e.g. windows
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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
- H02B1/32—Mounting of devices therein
- H02B1/34—Racks
- H02B1/36—Racks with withdrawable units
Abstract
The invention relates to an electric control power distribution cabinet, which comprises a cabinet body and an impact assembly, wherein the rear end surface of the cabinet body, which is close to the bottom, is provided with a mounting groove, a mounting shell which forms a seal with the cabinet body is fixedly mounted on the mounting groove, a torsion loading assembly is mounted on the mounting shell, and a gas generating piece is mounted on the torsion loading assembly; the impact assembly is arranged in the installation shell and used for impacting the gas generating piece to generate gas for blowing in the cabinet body. When the temperature sensor detects that the temperature in the electric control cabinet is higher than the temperature in the temperature sensor, the controller drives the hydraulic cylinder to push the fan-shaped impact head to impact the sodium azide disk, the severely impacted fan-shaped sodium azide is rapidly decomposed to generate a large amount of nitrogen, the generated nitrogen enters the heat dissipation pipe fitting through the exhaust pipe, and the heat dissipation pipe fitting blows elements and instruments on the assembly frame, so that the internal air flow is intensified to flow, the internal hot air can be rapidly discharged outside, and the heat dissipation rate of the heat dissipation pipe fitting is accelerated.
Description
Technical Field
The invention relates to the technical field of electric control power distribution, in particular to an electric control power distribution cabinet for low-voltage electricity.
Background
The electric control power distribution cabinet is a control cabinet (box) which assembles switch equipment, a measuring instrument, protective electric appliances and auxiliary equipment in a closed or semi-closed metal cabinet or on a screen according to the electric wiring requirement, and the arrangement of the electric control power distribution cabinet meets the requirement of normal operation of a power system, is convenient to overhaul and does not endanger the safety of people and surrounding equipment. The power distribution cabinet comprises a power distribution cabinet (a distribution box) (an electric appliance control cabinet) and the like, and a circuit can be switched on or switched off by a manual or automatic switch in normal operation. When the fault or abnormal operation occurs, the circuit is cut off or an alarm is given by means of the protective electric appliance. The measuring instrument can display various parameters in operation, and can also adjust some electrical parameters to prompt or send out signals for deviation from normal working state. It is commonly used in various power generation, distribution and transformation substations.
The automatically controlled cabinet on the market at present can be to heat dissipation cooling and dustproof function can seted up the heat dissipation window in both sides, although the function of heat dissipation cooling has been played, so also can bring new problem, for example, the dust gets into the inside of automatically controlled cabinet easily, can't be when reaching the heat dissipation function, can prevent dust again and handle, thereby the practicality of automatically controlled cabinet has been influenced greatly, and current automatically controlled cabinet is because the mounting bracket sets up inside the cubical switchboard, the open nature that leads to whole mounting bracket field of vision is poor, staff's operating range is narrow and narrow, make staff's installation or maintenance instrument on the mounting bracket, the operation is comparatively uncomfortable during the component.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides an electric control power distribution cabinet with a heat dissipation function, which comprises a cabinet body and an impact assembly, wherein a mounting groove is formed in the rear end surface of the cabinet body close to the bottom, a mounting shell forming a seal with the cabinet body is fixedly mounted on the mounting groove, a torsion feeding assembly is mounted on the mounting shell, and a gas generating piece is mounted on the torsion feeding assembly; the impact assembly is arranged in the installation shell and used for impacting the gas generating piece to generate gas for blowing in the cabinet body. When the temperature sensor detects that the temperature in the electric control cabinet is higher than the temperature in the temperature sensor, the controller drives the hydraulic cylinder to push the fan-shaped impact head to impact the sodium azide disk, the severely impacted fan-shaped sodium azide is rapidly decomposed to generate a large amount of nitrogen, the generated nitrogen enters the heat dissipation pipe fitting through the exhaust pipe, and the heat dissipation pipe fitting blows elements and instruments on the assembly frame, so that the internal air flow is intensified to flow, the internal hot air can be rapidly discharged outside, and the heat dissipation rate of the heat dissipation pipe fitting is accelerated.
The invention solves the technical problem, and adopts the technical scheme that:
an electric control power distribution cabinet with a heat dissipation function comprises a cabinet body and an impact assembly, wherein exhaust windows are formed in two side walls of the cabinet body, two groups of symmetrically distributed slide rails are mounted on the inner bottom wall of the cabinet body, a mounting frame in sliding connection is erected between the two groups of slide rails, and an assembly frame for mounting an electric control element is mounted on the mounting frame;
the rear end surface of the cabinet body close to the bottom is provided with a mounting groove, a mounting shell is fixedly mounted on the mounting groove, a sealed mounting cavity is formed between the mounting shell and the cabinet body, and a buffer part is arranged in the mounting cavity;
a torsion feeding assembly is arranged in the mounting shell, and a gas generating piece is arranged on the torsion feeding assembly;
the impact assembly is arranged in the installation shell and used for impacting the gas generating piece to generate gas for blowing the inside of the cabinet body.
It is specific, twist reverse the material loading subassembly and include axis of rotation, torsional spring, hinder board, threaded rod and fixation nut, the axis of rotation is rotated and is installed on the rear end face of the cabinet body, and the one end of axis of rotation extends to the cabinet internally, and the other end of axis of rotation extends to in the installation casing, the torsional spring is installed in the internal axis of rotation of cabinet, and two links of torsional spring respectively with two fixed mounting hinder board fixed connection on the inner wall of the cabinet body, fixed mounting has the threaded rod with the axle center setting in the axis of rotation in the installation casing, and the cover is equipped with threaded connection's fixation nut on the threaded rod.
Specifically, the gas generating piece comprises a fixed disc and a sodium azide disc, wherein the sodium azide disc is fixedly arranged on the outer circumference of the fixed disc and is formed by bonding a plurality of pieces of sector sodium azide with the same specification; a cutting groove is formed between adjacent fan-shaped sodium azides in the sodium azide disk, and the included angle of each fan-shaped sodium azide is 30 degrees; the sodium azide disk is provided with a fan-shaped opening with an included angle of 30 degrees.
Specifically, the fixed disc is sleeved on a rotating shaft in the installation shell and is fixed on the outer wall of the cabinet body in a rotating and screwing mode through a fixed nut; the fan-shaped opening block of sodium azide dish carries on spacingly to folding sodium nitride dish through the bolster in the periphery of the bolster on cabinet body mounting groove.
Specifically, the bolster includes baffle, buffer board and spring, baffle fixed mounting is on the mounting groove that the cabinet body was seted up and is located the installation shell, the planking wall of baffle is through the same spring of a plurality of elasticity coefficients and buffer board elastic connection, and the fan-shaped sodium azide lateral wall of lowest department offsets in buffer board and the sodium azide dish.
Specifically, install the blast pipe that communicates each other with the axis of rotation on the inner wall of the cabinet body, blast pipe and the heat dissipation pipe fitting interconnect who installs at the internal wall of cabinet, the nitrogen gas that will produce sodium azide is blown the heat dissipation to the internal electrical part of cabinet through the heat dissipation pipe fitting.
Specifically, the inlet channel who sets up along axis of rotation direction has been seted up on the axis of rotation is located an terminal surface of installation casing to the axis of rotation, inlet channel has also been seted up to the threaded rod, and the inlet channel of threaded rod and axis of rotation link up each other, introduces the axis of rotation through inlet channel with the nitrogen gas that produces in to the inside of the cabinet body is introduced through the axis of rotation.
Specifically, the tip that the axis of rotation is located cabinet body inside still installs the output end cover, the output end cover is opened and is equipped with and is used for axis of rotation male mounting groove, the appearance air cavity has been seted up to the inside of output end cover, the axis of rotation passes the mounting groove and stretches into in the appearance air cavity, the ring channel has been seted up on the outer circumference of output end cover, a plurality of air vents that communicate each other with the appearance air cavity have been seted up to the bottom of ring channel, the peripheral cover of ring channel is equipped with the sealing ring that seals each other and is rotated and connected with the ring channel, still be equipped with the air outlet channel who communicates each other with the blast pipe on the sealing ring.
Specifically, the heat dissipation pipe fitting includes exhaust side pipe, U type pipe and gas port, exhaust side pipe fixed mounting is on the internal wall of cabinet, and exhaust side pipe goes up fixed mounting has the U type pipe of many equidistance distributions, the gas port that a plurality of specification is the same has all been seted up on exhaust side pipe and U type pipe (92).
Specifically, the impact assembly comprises a mounting bracket, a hydraulic cylinder and a fan-shaped impact head, the mounting bracket (61) is fixedly mounted in the mounting shell, the hydraulic cylinder is arranged on a fixed frame on the mounting bracket, the fan-shaped impact head is fixedly mounted at the output end of the hydraulic cylinder, and the fan-shaped impact head and the lowest fan-shaped sodium azide of the sodium azide disk are mutually connected; the bottom of the mounting shell is connected with an ash receiving drawer below the sodium azide disk in a sliding mode.
Furthermore, still install the temperature sensor who is used for detecting the internal portion temperature of cabinet at cabinet internal portion, the temperature sensor electricity is connected with the controller.
Specifically, exhaust windows are arranged on two side walls of the cabinet body, two groups of symmetrically distributed slide rails are mounted on the inner bottom wall of the cabinet body, and a mounting rack in sliding connection is erected between the two groups of slide rails; the mounting frame is provided with an assembly frame for mounting an electric control element; and the slide rail is provided with a fixing screw rod for limiting and fixing the mounting rack.
After the technical scheme is adopted, the invention has the following beneficial effects:
1. according to the electric control power distribution cabinet with the heat dissipation function, when the temperature sensor detects that the temperature in the electric control cabinet is higher than the temperature in the temperature sensor, the hydraulic cylinder in the impact assembly is driven by the controller, so that the hydraulic cylinder pushes the fan-shaped impact head to impact the fan-shaped sodium azide at the lowest position of the sodium azide disk, the fan-shaped sodium azide which is impacted violently is decomposed quickly to generate a large amount of nitrogen, the generated nitrogen enters the heat dissipation pipe fittings through the exhaust pipes respectively, and the heat dissipation pipe fittings blow elements and instruments on the assembly frame, so that the internal airflow is accelerated to flow, and therefore the internal hot air can be discharged quickly, and the heat dissipation rate of the electric control power distribution cabinet is accelerated;
2. according to the electric control power distribution cabinet with the heat dissipation function, on one hand, the buffer plate can limit the fan-shaped opening in the sodium azide disk, on the other hand, after the lowest fan-shaped sodium azide in the sodium azide disk is impacted and decomposed, the next fan-shaped sodium azide rotates under the action of the torsion spring and abuts against the buffer plate, so that the spring on the buffer plate buffers the rotating force of the fan-shaped sodium azide, the fan-shaped sodium azide cannot be decomposed due to the impact with the buffer plate, and meanwhile, the protection of the lowest fan-shaped sodium azide is improved;
3. according to the electric control power distribution cabinet with the heat dissipation function, the mounting frame is erected on the sliding rail in the cabinet body, the mounting frame is provided with the assembling frame for mounting the electric control element, and the assembling frame is of a three-side open type structure, so that the cabinet body is pushed out by pulling of a worker, the whole assembling frame is high in openness, the worker can conveniently mount or maintain instruments and elements on the assembling frame, the problem that the instruments and the elements are inconvenient to mount or maintain due to the fact that the inner space of a traditional closed type electric control cabinet is narrow is solved, meanwhile, the power supply of the cabinet body can be immediately turned off and the assembling frame can be pushed out of the cabinet body when the temperature in the cabinet body is too high, and the heat dissipation rate of the electric control power distribution cabinet is further improved.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is one of schematic overall structural diagrams of an electrical control distribution cabinet with a heat dissipation function according to a preferred embodiment of the present invention;
fig. 2 is a second schematic view of the overall structure of the electrical control distribution cabinet with heat dissipation function according to the preferred embodiment of the present invention;
fig. 3 is a schematic view of the internal structure of the mounting housing shown in fig. 2, i.e., the mounting housing 2 with the sealing cover 21 removed;
FIG. 4 is a schematic view of a heat dissipating pipe in the cabinet of FIG. 1;
FIG. 5 is an enlarged view of the structure shown at A in FIG. 3;
FIG. 6 is an enlarged view of the structure shown at B in FIG. 4;
FIG. 7 is a schematic view of the buffer shown in FIG. 5;
FIG. 8 is a schematic structural view of the gas-generating member shown in FIG. 7;
FIG. 9 is a schematic structural view of the impingement assembly shown in FIG. 5;
fig. 10 is a schematic view of the connection between the rotating shaft and the output cover according to the present invention.
In the figure: 1. a cabinet body; 2. installing a shell; 21. a sealing cover; 3. twisting the feeding assembly; 31. a rotating shaft; 311. an air intake passage; 312. an output cover; 313. an air containing cavity; 314. a vent hole; 315. an annular groove; 316. a seal ring; 32. a torsion spring; 33. blocking the plate; 34. a threaded rod; 35. fixing a nut; 4. a gas generating member; 41. fixing the disc; 42. a sodium azide disk; 43. a fan-shaped opening; 5. a buffer member; 51. a baffle plate; 52. a buffer plate; 53. a spring; 6. an impact assembly; 61. mounting a bracket; 62. a hydraulic cylinder; 63. a fan-shaped impact head; 7. a dust collecting drawer; 8. an exhaust pipe; 9. a heat dissipating pipe; 91. an exhaust square pipe; 92. a U-shaped pipe; 93. a gas port; 9a, a sliding rail, 9b and a mounting rack; 9c, an exhaust window.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 9, the electric control power distribution cabinet with a heat dissipation function provided by the invention comprises a cabinet body 1 and an impact assembly 6, wherein exhaust windows 9c are respectively formed on two side walls of the cabinet body 1, two sets of symmetrically distributed slide rails 9a are mounted on the inner bottom wall of the cabinet body 1, an installation frame 9b in sliding connection is erected between the two sets of slide rails 9a, an assembly frame for installing an electric control element is mounted on the installation frame 9b, and a fixing screw rod for limiting and fixing the installation frame 9b is mounted on the slide rail 9 a.
It should be noted that: the slide rail 9a of the cabinet body 1 is put on the shelf and is equipped with mounting bracket 9b, and install the assembly jig that is used for installing automatically controlled component on the mounting bracket 9b, and the assembly jig adopts trilateral open architecture, consequently the assembly jig releases cabinet body 1 under staff's pulling, and the open nature of whole assembly jig is strong, make the staff at the assembly jig installation or maintain the instrument, it is comparatively convenient during the component, it leads to the installation or maintains the instrument to have solved the narrow and small installation or the problem of maintaining the instrument of leading to of the automatically controlled cabinet inner space of traditional closed type, the inconvenient problem of component, can close cabinet body 1 power immediately and release cabinet body 1 with the assembly jig when cabinet body 1 inside high temperature simultaneously, further improve its heat dissipation rate.
The inside of the cabinet body 1 is also provided with a temperature sensor for detecting the temperature inside the cabinet body 1, and the temperature sensor is electrically connected with a controller. The temperature sensor and controller are well known in the art and will be understood and appreciated by those skilled in the art and will not be described in detail herein.
The fixing screw rod on the slide rail 9a can limit and fix the mounting rack 9b sliding out of the slide rail 9 a.
In a specific implementation process, as shown in fig. 3, 4, 5 and 6, a mounting groove is formed in a rear end surface of the cabinet body 1 close to the bottom, a mounting casing 2 is fixedly mounted on the mounting groove, a sealed mounting cavity is formed between the mounting casing 2 and the cabinet body 1, specifically, the mounting casing 2 is a shell-shaped structure with a cavity, and a sealed mounting cavity is formed between an outer shell of the mounting casing 2 and a rear panel wall of the cabinet body 1.
A gas generating component 4, a buffer component 5, an impact component 6 and an ash receiving drawer 7 are arranged in the mounting cavity 2.
The mounting housing 2 is provided with a sealing cover 21, so that a sealed mounting cavity is formed between the mounting housing 2 and the cabinet 1 through the sealing cover 21. The torsion feeding assembly 3 is installed in the installation shell 2, the torsion feeding assembly 3 comprises a rotating shaft 31, a torsion spring 32, a baffle 33, a threaded rod 34 and a fixing nut 35, the rotating shaft 31 is rotatably installed on the rear end face of the cabinet body 1, one end of the rotating shaft 31 extends into the cabinet body 1, the other end of the rotating shaft 31 extends into the installation shell 2, the torsion spring 32 is installed on the rotating shaft 31 in the cabinet body 1, two connecting ends of the torsion spring 32 are fixedly connected with the two baffle 33 respectively, the threaded rod 34 which is coaxially arranged is fixedly installed on the rotating shaft 31 in the installation shell 2, the fixing nut 35 which is in threaded connection is sleeved on the threaded rod 34, and the two baffle 33 are both fixedly installed on the inner cabinet face of the cabinet body 1;
wherein, the staff installs temperature sensor in the cabinet body 1, and temperature sensor and the pneumatic cylinder 62 in the subassembly 6 of strikeing all with controller electric connection.
Referring to fig. 7 and 8, the torsion loading assembly 3 is provided with a gas generating member 4, the gas generating member 4 comprises a fixed disc 41 and a sodium azide disc 42, the outer circumference of the fixed disc 41 is fixedly provided with the sodium azide disc 42, and the sodium azide disc 42 is formed by bonding a plurality of pieces of sector sodium azide with the same specification; a cutting groove is formed between adjacent fan-shaped sodium azides in the sodium azide disk 42, and the included angle of each fan-shaped sodium azide is 30 degrees; a fan-shaped opening 43 with an included angle of 30 degrees is formed in the sodium azide disk 42, and the lowest fan-shaped sodium azide of the sodium azide disk 42 is symmetrical relative to a vertical line. The sodium azide in the form of a sector is cut from a bulk form of sodium azide.
It should be noted that: when the gas generating piece 4 is installed, the fixing nut 35 is firstly dismounted, the fixing disc 41 is sleeved on the rotating shaft 31 and then rotated, so that the torsion spring 32 has a certain torsion force, the opening of the sodium azide disc 42 is kept to be abutted against the outer wall of the buffer plate 52, the fixing nut 35 is sleeved on the fixing disc and then screwed, and the opening of the sodium azide disc 42 is limited by the buffer plate 52 and can be stably placed.
Referring to fig. 5 and 9, the impact assembly 6 includes a mounting bracket 61, a hydraulic cylinder 62 and a fan-shaped impact head 63, the mounting bracket 61 is fixedly mounted in the mounting housing 2, the hydraulic cylinder 62 is mounted on the mounting bracket 61, the fan-shaped impact head 63 is fixedly mounted at the output end of the hydraulic cylinder 62, the fan-shaped impact head 63 corresponds to the lowest fan-shaped sodium azide of the sodium azide disk 42, and the bottom of the mounting housing 2 is slidably connected with the ash receiving drawer 7 located below the gas generating component 4.
It should be noted that: when the temperature sensor detects that the temperature in the electric control cabinet is higher than the temperature in the temperature sensor, the hydraulic cylinder 62 in the impact assembly 6 is driven by the controller, so that the hydraulic cylinder 62 pushes the fan-shaped impact head 63 to impact the lowest fan-shaped sodium azide of the sodium azide disk 42, the violently impacted fan-shaped sodium azide is rapidly decomposed to generate a large amount of nitrogen, the chemical equation is NaN3 (NaH + N2), the generated nitrogen enters the exhaust pipe 8 through the air outlet channel and then enters the heat dissipation pipe fitting 9 through the exhaust pipe 8, the heat dissipation pipe fitting 9 blows elements and instruments on the assembly frame, so that the internal air flow is accelerated to flow, the internal hot air can be rapidly discharged outside, the heat dissipation rate is accelerated, meanwhile, the discharged air flow can blow dust in the electric control cabinet, the lowest fan-shaped sodium azide is impacted and decomposed, and the residues fall into the dust receiving drawer 7 to be stored, meanwhile, the remaining sodium azide disc 42 rotates along with the rotating shaft 31 under the action of the torsion spring 32 until the next sodium azide sector rotates to the decomposed sodium azide sector position, so that the next impact decomposition of the sodium azide disc 42 is carried out;
it is worth noting that: the part of the rotating shaft 31 sleeved by the fixed disc 41 adopts a six-diamond shape, and the clamping cavity of the fixed disc 41 also adopts a matching six-diamond shape, so that the fixed disc 41 is prevented from freely rotating around the rotating shaft 31.
Referring to fig. 7, the fixed disk 41 is sleeved on the rotating shaft 31 in the installation housing 2 and is fixed on the outer wall of the cabinet 1 in a manner of being screwed down by the fixing nut 35, the sector opening 43 of the sodium azide disk 42 is clamped in the buffer 5 on the installation groove of the cabinet 1, the sodium azide disk 42 is limited by the buffer 5, the buffer 5 comprises a baffle plate 51, a buffer plate 52 and a spring 53, the baffle plate 51 is fixedly installed on the installation groove formed in the cabinet 1, the included angle between the baffle plate 51 and the vertical line is 30 °, the outer wall of the baffle plate 51 is elastically connected with the buffer plate 52 through a plurality of springs 53 with the same elasticity coefficient, and the buffer plate 52 abuts against the lowest sector sodium azide side wall in the sodium azide disk 42.
It should be noted that: buffer plate 52 can be spacing to fan-shaped opening 43 in the sodium azide dish 42 on the one hand, and on the other hand in sodium azide dish 42 the fan-shaped sodium azide of the lower is by the striking decomposition back, next fan-shaped sodium azide is rotatory and offset with buffer plate 52 under the effect of torsional spring 32 to spring 53 on the buffer plate 52 has cushioned the turning force of falling fan-shaped sodium azide and has made it can not decompose because of the collision with buffer plate 52, has improved the protection to the fan-shaped sodium azide of lower simultaneously.
Referring to fig. 1 and 4, the internally mounted of the cabinet body 1 has an exhaust pipe 8, the exhaust pipe 8 and the heat dissipation pipe fitting 9 installed on the inner wall of the cabinet body 1 are connected to each other, nitrogen gas generated by sodium azide is exhausted into the cabinet body 1 through the heat dissipation pipe fitting 9 to dissipate heat, the heat dissipation pipe fitting 9 comprises an exhaust square pipe 91, a U-shaped pipe 92 and an air port 93, the exhaust square pipe 91 is fixedly installed on the inner wall of the cabinet body 1, a plurality of equally-distributed U-shaped pipes 92 are fixedly installed on the exhaust square pipe 91, and the air ports 93 with the same specifications are respectively formed in the exhaust square pipe 91 and the U-shaped pipe 92.
It should be noted that: the generated nitrogen enters the exhaust square pipe 91 and the U-shaped pipe 92 through the exhaust pipe 8 and is blown out through the air ports 93, and the blowing effect on the hot air in the cabinet body 1 can be greatly improved due to the high density of the air ports on the exhaust square pipe 91 and the U-shaped pipe 92, so that the hot air is discharged out of the exhaust window 9 c.
Referring to fig. 10, an air inlet channel 311 is formed on an end surface of the rotating shaft 31 of the present invention, which is located on the mounting housing 2, and the air inlet channel 311 is formed on the threaded rod 34, and the threaded rod 34 and the air inlet channel of the rotating shaft 31 are mutually communicated, so that the generated nitrogen gas is conveniently introduced into the rotating shaft 31 through the air inlet channel 311, and then introduced into the cabinet 1 through the rotating shaft 31.
In some embodiments, the outer circumference of the rotating shaft 31 located in the mounting case 2 may also be threaded to form the threaded rod 34, i.e., the rotating shaft 31 and the threaded rod 34 may be an integral structure.
Further, an output end cover 312 is further installed at the end portion of the rotating shaft 31 located inside the cabinet body 1, an installation groove for inserting the rotating shaft is formed in the output end cover 312, an air accommodating cavity 313 is formed in the output end cover 312, the rotating shaft 31 penetrates through the installation groove and extends into the air accommodating cavity 313, an annular groove 315 is formed in the outer circumference of the output end cover 312, a plurality of vent holes 314 communicated with the air accommodating cavity 313 are formed in the bottom of the annular groove 315, a sealing ring 316 mutually sealed and rotatably connected with the annular groove is sleeved on the periphery of the annular groove 315, an air outlet channel 317 is further arranged on the sealing ring 316, and the exhaust pipe 8 is communicated with the air outlet channel 317.
In this embodiment, nitrogen gas generated by sodium azide collision is introduced into the gas containing cavity in the output end cover 312 through the gas inlet channel 311, then enters the cavity formed between the bottom of the rotating ring and the bottom of the annular groove through the vent hole, and then enters the exhaust pipe 8 through the gas outlet channel, so that nitrogen gas is introduced into the heat dissipation pipe fitting 9 for dissipating heat of the electric device on the assembly frame.
According to the invention, nitrogen generated by sodium azide impact through the impact assembly is firstly gathered in the mounting shell with a larger space and then enters the cabinet body 1 through the air inlet channel with a smaller space, so that in the using process, nitrogen generated by sodium azide impact cannot generate explosion risk due to the accommodation of the mounting shell 2 with the larger space, and then is introduced into the cabinet body 1 through the air inlet channel with the smaller space, thereby forming nitrogen flow flowing at high speed to blow electric devices in the cabinet body 1.
Compared with the traditional technical scheme that the cabinet body is provided with the cooling fan, the invention also has the following advantages that:
1. the electric devices in the cabinet body are generally provided with the cooling fan, the normal operation of the electric devices can be ensured through the cooling fan, when the electric device is overloaded or damaged and the heat generation quantity is increased, the heat dissipation risk of the electric device is not enough to meet the heat dissipation requirement, at the moment, the temperature sensor transmits the temperature information to the controller, the sodium azide impact assembly is controlled by the controller to work so as to generate nitrogen, the nitrogen is introduced into the cabinet body to carry out heat dissipation and blowing on the electric device, on one hand, a large amount of instantly generated nitrogen can be rapidly cooled, and compared with the prior art that a cooling fan is adopted, the cooling fan has the characteristic of high cooling efficiency, meanwhile, the nitrogen is utilized to fill the inside of the cabinet body quickly, and air (oxygen) in the cabinet body can be blown out of the cabinet body completely, so that fire caused by high temperature is prevented, and a good fire prevention effect is achieved.
2. The invention utilizes the generated nitrogen to blow, and the nitrogen generated by sodium azide impact has the characteristic of cleanness, compared with the prior art that the radiating fan is utilized to introduce external air (dust, water mist) and the like into the cabinet body, the invention prevents the problem that the dust in the air is introduced into the cabinet body through the radiating fan and is accumulated in electric devices, and the problems of short circuit and damage of the electric devices caused by the water mist entering the cabinet body; the normal operation of the electric device is guaranteed, and the workload of maintenance of the electric device is reduced. The principle of the electric control power distribution cabinet with the heat dissipation function provided by the invention is as follows:
the mounting frame 9b is erected on the sliding rail 9a in the cabinet body 1, the mounting frame 9b is provided with the assembly frame for mounting the electric control element, and the assembly frame adopts a three-side open type framework, so the assembly frame is pulled by a worker to push the cabinet body 1 out, the whole assembly frame is wide, the worker can conveniently mount or maintain instruments and elements on the assembly frame, the problem that the instruments and elements are inconvenient to mount or maintain due to the narrow inner space of the traditional closed type electric control cabinet is solved, meanwhile, when the temperature in the cabinet body 1 is too high, the power supply of the cabinet body 1 can be immediately closed, the assembly frame is pushed out of the cabinet body 1, the heat dissipation rate is further improved, the worker mounts the temperature sensor in the cabinet body 1, the temperature sensor and the hydraulic cylinder 62 in the impact assembly 6 are electrically connected with the controller, when the gas production piece 4 is mounted, the fixing nut 35 is firstly dismounted, the fixed disc 41 is sleeved on the rotating shaft 31 and then rotated to enable the torsion spring 32 to have a certain degree of torsion, the opening of the sodium azide disc 42 is kept to abut against the outer wall of the buffer plate 52, the fixed disc is sleeved on the fixing nut 35 and then screwed, the opening of the sodium azide disc 42 is limited by the buffer plate 52 and can be stably placed, when the temperature sensor detects that the temperature in the electric control cabinet is higher than the temperature in the temperature sensor, the hydraulic cylinder 62 in the impact assembly 6 is driven by the controller, so that the hydraulic cylinder 62 pushes the fan-shaped impact head 63 to impact the fan-shaped sodium azide at the lowest part of the sodium azide disc 42, the fan-shaped sodium azide which is impacted violently is rapidly decomposed to generate a large amount of nitrogen, the chemical equation of the nitrogen is NaN3 NaH + N2, the generated nitrogen enters the heat dissipation pipe fitting 9 through the exhaust pipe 8 respectively, and the heat dissipation pipe fitting 9 is used for elements on the assembly frame, The instrument blows for inside air current aggravation flows, therefore inside steam can be discharged outward rapidly, thereby accelerate its radiating rate, simultaneously outward discharge's air current can also be blown outward to the dust in the automatically controlled cabinet, and the fan-shaped sodium azide of the minimum is by striking decomposition back, the residue stores in falling to connecing grey drawer 7, meanwhile remaining sodium azide dish 42 rotates along with axis of rotation 31 under torsional spring 32's effect, rotate to the fan-shaped sodium azide position of being decomposed until next fan-shaped sodium azide, so that the next of sodium azide dish 42 strikes the decomposition.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides an automatically controlled switch board with heat dissipation function, includes the cabinet body (1) and strikes subassembly (6), has all seted up air discharge window (9 c) at the both sides wall of the cabinet body (1), installs two sets of symmetric distribution's slide rail (9 a), its characterized in that at the inner diapire of the cabinet body (1): an installation frame (9 b) in sliding connection is erected between the two groups of sliding rails (9 a), and an assembly frame for installing an electric control element is installed on the installation frame (9 b);
a mounting groove is formed in the rear end face, close to the bottom, of the cabinet body (1), a mounting shell (2) is fixedly mounted on the mounting groove, a sealed mounting cavity is formed between the mounting shell (2) and the cabinet body (1), and a buffer piece (5) is arranged in the mounting cavity;
a torsion feeding assembly (3) is arranged in the mounting shell (2), and a gas generating piece (4) is arranged on the torsion feeding assembly (3);
the impact assembly (6) is arranged in the mounting shell (2), and the impact assembly (6) is used for impacting the gas generating piece (4) so as to generate gas for blowing the inside of the cabinet body (1);
the torsion feeding assembly (3) comprises a rotating shaft (31), a torsion spring (32), a resistance plate (33), a threaded rod (34) and a fixing nut (35), wherein the rotating shaft (31) is rotatably installed on the rear end face of the cabinet body (1), one end of the rotating shaft (31) extends into the cabinet body (1), the other end of the rotating shaft (31) extends into the installation casing (2), the torsion spring (32) is installed on the rotating shaft (31) in the cabinet body (1), two connecting ends of the torsion spring (32) are fixedly connected with the resistance plates (33) fixedly installed on the inner wall of the cabinet body (1) respectively, the rotating shaft (31) in the installation casing (2) is fixedly provided with the threaded rod (34) which is coaxially arranged, and the threaded rod (34) is sleeved with the fixing nut (35) which is in threaded connection;
the gas generating piece (4) comprises a fixed disc (41) and a sodium azide disc (42), wherein the sodium azide disc (42) is fixedly installed on the outer circumference of the fixed disc (41), and the sodium azide disc (42) is formed by bonding a plurality of pieces of sector sodium azide with the same specification;
a cutting groove is formed between adjacent fan-shaped sodium azides in the sodium azide disk (42), and the included angle of each fan-shaped sodium azide is 30 degrees;
the sodium azide disk (42) is provided with a fan-shaped opening (43) with an included angle of 30 degrees;
the impact assembly (6) comprises a mounting bracket (61), a hydraulic cylinder (62) and a fan-shaped impact head (63), the mounting bracket (61) is fixedly mounted in the mounting shell (2), the hydraulic cylinder (62) is arranged on the mounting bracket (61) in a fixed mode, the fan-shaped impact head (63) is fixedly mounted at the output end of the hydraulic cylinder (62), and the fan-shaped impact head (63) corresponds to the lowest fan-shaped sodium azide of the sodium azide disk (42); the bottom of the inner cavity of the mounting shell (2) is connected with an ash receiving drawer (7) below the sodium azide disk in a sliding mode.
2. The electrically controlled power distribution cabinet with the heat dissipation function of claim 1, characterized in that: the fixed disc (41) is sleeved on the rotating shaft (31) in the mounting shell (2) and is fixed on the outer wall of the cabinet body (1) in a rotating and screwing mode through a fixed nut (35);
fan-shaped opening (43) block of sodium azide dish (42) is in the periphery of bolster (5) on cabinet body (1) mounting groove, carries on spacingly to overlapping sodium azide dish (42) through bolster (5).
3. The electrically controlled power distribution cabinet with the heat dissipation function of claim 2, characterized in that: bolster (5) include baffle (51), buffer board (52) and spring (53), baffle (51) fixed mounting is on the mounting groove that the cabinet body (1) was seted up and is located installation casing (2), the planking wall of baffle (51) is through the same spring (53) of a plurality of elasticity coefficients and buffer board (52) elastic connection, and the fan-shaped sodium azide lateral wall of lowest department offsets in buffer board (52) and sodium azide dish (42).
4. The electrically controlled power distribution cabinet with heat dissipation function of claim 3, characterized in that: an exhaust pipe (8) communicated with the rotating shaft (31) is mounted on the inner wall of the cabinet body (1), the exhaust pipe (8) is connected with a heat dissipation pipe fitting (9) mounted on the inner wall of the cabinet body (1), and nitrogen generated by sodium azide is blown to dissipate heat of electric devices in the cabinet body through the heat dissipation pipe fitting (9);
the temperature sensor for detecting the internal temperature of the cabinet body (1) is further mounted in the cabinet body (1), and the temperature sensor is electrically connected with the controller.
5. The automatically controlled switch board with heat dissipation function of claim 4, characterized in that: the rotating shaft (31) is located on one end face of the installation shell (2) and is provided with an air inlet channel (311) arranged along the axis direction of the rotating shaft (31), the threaded rod (34) is also provided with the air inlet channel (311), the threaded rod (34) and the air inlet channel (311) of the rotating shaft (31) are communicated with each other, and generated nitrogen is introduced into the rotating shaft (31) through the air inlet channel (311) so as to be introduced into the cabinet body (1) through the rotating shaft (31).
6. The electrically controlled power distribution cabinet with the heat dissipation function of claim 5, wherein: the end part of the rotating shaft (31) located inside the cabinet body (1) is further provided with an output end cover (312), the output end cover (312) is provided with a mounting groove for inserting the rotating shaft (31), an air containing cavity (313) is formed in the output end cover (312), the rotating shaft (31) penetrates through the mounting groove and extends into the air containing cavity (313), an annular groove (315) is formed in the outer circumference of the output end cover (312), the bottom of the annular groove (315) is provided with a plurality of vent holes (314) communicated with the air containing cavity (313), the periphery of the annular groove (315) is sleeved with a sealing ring (316) which is mutually sealed and rotationally connected with the annular groove, and an air outlet channel (317) communicated with the exhaust pipe (8) is further arranged on the sealing ring (316).
7. The automatically controlled switch board with heat dissipation function of claim 4, characterized in that: the heat dissipation pipe fitting (9) comprises an exhaust square pipe (91), U-shaped pipes (92) and air ports (93), the exhaust square pipe (91) is fixedly installed on the inner wall of the cabinet body (1), the exhaust square pipe (91) is fixedly provided with a plurality of U-shaped pipes (92) which are distributed at equal intervals, and the exhaust square pipe (91) and the U-shaped pipes (92) are respectively provided with a plurality of air ports (93) with the same specification;
and a fixing screw rod used for limiting and fixing the mounting rack (9 b) is arranged on the sliding rail (9 a).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110114070.XA CN112928654B (en) | 2021-01-27 | 2021-01-27 | Automatically controlled switch board with heat dissipation function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110114070.XA CN112928654B (en) | 2021-01-27 | 2021-01-27 | Automatically controlled switch board with heat dissipation function |
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| CN112928654B true CN112928654B (en) | 2022-09-23 |
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| CN209108485U (en) * | 2018-08-16 | 2019-07-16 | 江苏省苏州第一中学校（苏州市第二高级中学） | A kind of fire extinguisher with Manual inflators structure |
| CN111162459A (en) * | 2018-11-07 | 2020-05-15 | 人民电器集团上海有限公司 | Can adjust radiating power cabinet for power engineering |
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Effective date of registration: 20220907 Address after: No. 809, Central Avenue, Jiaojiang District, Taizhou City, Zhejiang Province, 318001 Applicant after: STATE GRID ZHEJIANG ELECTRIC POWER CO., LTD. TAIZHOU POWER SUPPLY Co. Address before: 611130 3rd floor, unit 2, building 20, No. 88, Xingye South Street, Xipu Town, Pixian County, Chengdu City, Sichuan Province Applicant before: Xu Yunxia |
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