CN204012325U - The ventilating mechanisms of power distribution cabinet - Google Patents
The ventilating mechanisms of power distribution cabinet Download PDFInfo
- Publication number
- CN204012325U CN204012325U CN201420433716.6U CN201420433716U CN204012325U CN 204012325 U CN204012325 U CN 204012325U CN 201420433716 U CN201420433716 U CN 201420433716U CN 204012325 U CN204012325 U CN 204012325U
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- power distribution
- distribution cabinet
- ventilating
- ventilating opening
- air
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Abstract
The utility model discloses a kind of ventilating mechanisms of power distribution cabinet, comprise the ventilating opening being arranged on three sides of power distribution cabinet, described three ventilating openings are equipped with temperature sensor around, also comprise the air-supply arrangement being arranged in power distribution cabinet, wherein, when the temperature that this ventilating opening detected when ventilating opening place temperature sensor that air-supply arrangement is aimed at is greater than preset value, air-supply arrangement turns to, and aims at other ventilating openings.The ventilating mechanisms of power distribution cabinet of the present utility model, by the setting of temperature sensor, just can effectively know and where locate ventilating opening towards wall, air-supply arrangement just can, towards other two not towards the ventilating opening heat radiation of wall, effectively strengthen the heat dispersion of power distribution cabinet like this.
Description
Technical field
The utility model relates to a kind of power distribution cabinet, relates in particular a kind of ventilating mechanisms of power distribution cabinet.
Background technology
Power distribution cabinet is divided into power distributing cabinet, batch meter and light distribution box, is the final stage device of distribution system.Distribution box is used and is meeting relatively dispersion, the less occasion in loop, and it gives load nearby the power distribution of a certain circuit of upper level controller switching equipment.Due to many performances of power distribution cabinet, determined its importance.Because there are a lot of electric components the inside of power distribution cabinet, it can produce a lot of heats when work, when heat gathers when too many, is unfavorable for power distribution cabinet work, performance that also can impression power distribution cabinet.
Having notification number is ventilation and the mechanism that the patent of CN 103683046A discloses a kind of power distribution cabinet, comprise the ventilating opening that is arranged on power distribution cabinet side, ventilating opening comprises a plurality of ventilation holes, on described ventilation hole, be provided with dust excluding plate, the side of described power distribution cabinet is also fixed with positive stop strip, the cross section of described positive stop strip is L-shaped, a face of positive stop strip is fixed on power distribution cabinet, the side of another side and power distribution cabinet is perpendicular, although but the ventilating mechanisms of this structure can effectively avoid dust to enter power distribution cabinet from ventilation hole, when positive stop strip makes power distribution cabinet be fixed on corner or other positions, ventilation hole can not be blocked, can effectively guarantee ventilation hole work, if ventilation hole is when wall arranges, although the setting due to positive stop strip, ventilation hole can not be blocked, if but after the long-time heat radiation of ventilation hole, and the existence of wall will cause the heat of ventilation hole surrounding cannot in time limited distributing, will cause like this temperature of ventilation hole surrounding to raise, its heat will be circulated in power distribution cabinet again, temperature in power distribution cabinet is raise again, therefore its heat dispersion of power distribution cabinet of this structure is still strong not.
Utility model content
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of ventilating mechanisms that can strengthen the power distribution cabinet of power distribution cabinet heat dispersion.
For achieving the above object, the utility model provides following technical scheme: a kind of ventilating mechanisms of power distribution cabinet, comprise the ventilating opening being arranged on three sides of power distribution cabinet, described three ventilating openings are equipped with temperature sensor around, also comprise the air-supply arrangement being arranged in power distribution cabinet, wherein, when the temperature that this ventilating opening detected when ventilating opening place temperature sensor that air-supply arrangement is aimed at is greater than preset value, air-supply arrangement turns to, and aims at other ventilating openings.
By adopting technique scheme, when the temperature that this place detected when a temperature sensor is greater than a certain value, just represent that this ventilating opening is herein just towards wall, thereby air-supply arrangement will rotate, make its wind direction towards other ventilating openings, so just can effectively avoid, because ventilating opening is towards wall, cause the heat build-up at ventilating opening place, temperature raises and finally pours in down a chimney in power distribution cabinet, reduce the problem of the heat dispersion of power distribution cabinet, effectively increased the heat dispersion of power distribution cabinet.
The utility model is further set to: described air-supply arrangement comprises electric fan and the driving mechanism for driving electric fan to rotate, and described driving mechanism and temperature sensor couple.
By adopting technique scheme, by electric fan, just can effectively reach the effect of an air-supply, effectively the heat forced conveyance of power distribution cabinet inside is arrived extraneous, and by the setting of driving mechanism, just can be at electric fan in the face of in the ventilating opening of wall, just can effectively electric fan be turned to, prevent that the heat of seeing off from pouring in down a chimney again the problem of returning, and effectively increased the heat dispersion of power distribution cabinet.
The utility model is further set to: described driving mechanism comprises stepping motor, controllor for step-by-step motor and signal generating circuit, described stepping motor rotating shaft is fixedly connected with electric fan, described stepping motor and signal generating circuit all couple with controllor for step-by-step motor, and described signal generating circuit also couples with temperature sensor.
By adopting technique scheme, when needs rotate electric fan, stepping motor just can effectively turn an angle electric fan, make electric fan can aim at more accurately air outlet, make the heat in power distribution cabinet can better flow to the external world, synchronous signal produces the setting of circuit, just can effectively the detected temperature signal of temperature sensor be converted to the signal of telecommunication is input in the middle of controllor for step-by-step motor, make stepping motor can make timely response, greatly increased the heat dispersion of power distribution cabinet.
The utility model is further set to: described ventilating opening top is also provided with dust excluding plate, and described dust excluding plate top is also provided with for driving dust excluding plate to cover the adsorbing mechanism of ventilating opening.
By adopting technique scheme, by the setting of dust excluding plate, just can effectively avoid extraneous dust to enter in power distribution cabinet, be attached on electric component, finally cause the heat that electric component produces cannot well be dispersed into the problem in power distribution cabinet inner air, effectively increased the heat dispersion of power distribution cabinet.
The utility model is further set to: described driving mechanism comprises electromagnet and be fixed in the magnetic patch on dust excluding plate, and described electromagnet is fixed on ventilating opening top, and also couples with signal generating circuit.
By adopting technique scheme, by the setting of electromagnet and magnetic patch, just can be when signal generating circuit produce signal, be that the electric fan ventilation of aiming at is not towards wall, thereby electromagnet will produce suction, hold magnetic patch, make dust excluding plate above ventilating opening, and do not cover ventilating opening, so just can make electric fan better the heat of power distribution cabinet inside is transported to the external world by ventilating opening, simultaneously after electric fan rotates, electromagnet just no longer holds magnetic patch, dust excluding plate will fall like this, block ventilating opening, prevent that extraneous dust from entering in power distribution cabinet by ventilating opening, effectively increased the heat dispersion of power distribution cabinet.
In the utility model embodiment, wherein electric fan is fan common on market, thereby its internal structure repeats no more, a side in ventilating opening is arranged on cabinet is connected with a base, when dust excluding plate covers ventilating opening, be arranged on base, base is " Qian " shape and arranges, its two vertical edges are guide rail, when dust excluding plate covers ventilating opening, dust excluding plate slides into base by two vertical edges, so just can effectively reach the effect that dust excluding plate covered or opened ventilating opening, at the place, base of base, draw a fixed leg simultaneously, article three, three fixed legs are drawn on base altogether, the intersection point place of fixed leg is integrally formed with a disk, the center of circle of disk goes out to have through hole, stepping motor is fixed on the below of disk by screw (not shown), its rotating shaft is simultaneously through through hole, electric fan is arranged on disk top, and be fixed on stepping motor rotating shaft, controllor for step-by-step motor and signal generating circuit are all fixed on disk simultaneously, and by wire, be connected (not shown) with electromagnet, controllor for step-by-step motor adopts the controllor for step-by-step motor that model is MTPG2.
Signal generating circuit comprises a SP3T switch, wherein contact knife is fixed to electric fan below, along with electric fan rotates together, contact knife connects power supply, temperature sensor is NTC series thermistor, it also comprises a NMOS pipe, the 2nd NMOS pipe, the 3rd NMOS pipe, the 4th NMOS pipe, the 5th NMOS pipe, the 6th NMOS pipe, wherein a NMOS pipe is one group with the 2nd NMOS pipe, two grids all couple with an output of SP3T switch, one of them grid couples with output after coupling thermistor again, drain electrode connects power supply, the source electrode of the one NMOS pipe couples ground connection after electromagnet, the source electrode of the 2nd NMOS pipe couples controllor for step-by-step motor, accordingly when the 3rd NMOS manages and the 4th NMOS pipe is one group, when the 5th NMOS pipe and the 6th NMOS pipe are one group, the source electrode of the 3rd NMOS pipe couples electromagnet, the source electrode of the 5th NMOS pipe couples electromagnet, the 3rd NMOS pipe next and the 4th NMOS manage the grid of a group and all couple and manage with a NMOS and the 2nd NMOS manages a different set of output, the 5th NMOS pipe and the 6th NMOS manage the grid of a group and all couple and be left last output, wherein power supply is external direct current of voltage regulation.
Accompanying drawing explanation
Fig. 1 is the overall structure figure of the ventilating mechanisms of power distribution cabinet of the present utility model;
Fig. 2 is for being used this to use the outside drawing of novel power distribution cabinet;
Fig. 3 is the circuit diagram of signal generating circuit;
Fig. 4 is for being used this to use the front view of novel power distribution cabinet.
In figure: 1, air-supply arrangement; 11, electric fan; 12, driving mechanism; 121, controllor for step-by-step motor; 122, signal generating circuit; 123, stepping motor; 2, ventilating opening; 3, dust excluding plate; 4, adsorbing mechanism; 41, electromagnet; 42, magnetic patch; RW, temperature sensor; M1, a NMOS pipe; M2, the 2nd NMOS pipe; M3, the 3rd NMOS pipe; M4, the 4th NMOS pipe; M5, the 5th NMOS pipe; M6, the 6th NMOS pipe; K, SP3T switch.
Embodiment
Shown in 4, the ventilating mechanisms of a kind of power distribution cabinet of the present embodiment, comprise the ventilating opening 2 being arranged on three sides of power distribution cabinet, described three ventilating openings 2 are equipped with temperature sensor RW around, also comprise the air-supply arrangement 1 being arranged in power distribution cabinet, wherein, when the temperature that the ventilating opening 2 temperature sensor RW of place that aim at when air-supply arrangement 1 detect this ventilating opening 2 is greater than preset value, air-supply arrangement 1 turns to, and aims at other ventilating openings 2.
By adopting technique scheme, when starting Electric Appliance Cabinet, air-supply arrangement 1 will start, produce the air-flow of a frontage and airiness mouth 2, by this air-flow, constantly the heat delivery producing in power distribution cabinet is arrived extraneous, when 1 of air-supply arrangement towards ventilating opening 2 towards wall time, its temperature around will raise when temperature is elevated to uniform temperature, temperature sensor RW will sense this temperature, and control air-supply arrangement 1 and turn to, so just can effectively avoid, because ventilating opening 2 is towards wall, the heat build-up that causes ventilating opening 2 places, temperature raises and finally pours in down a chimney in power distribution cabinet, reduced the problem of the heat dispersion of power distribution cabinet, effectively increased the heat dispersion of power distribution cabinet.
Temperature detection principle to above-mentioned mentioned temperature sensor RW below, the course of work and the principle of air-supply arrangement 1 are described in detail.
The thermistor that the present embodiment adopts is negative tempperature coefficient thermistor, and its operation principle is temperature when low, and the charge carrier of these oxide materials (electronics and hole) number is few, so its resistance value is higher; Rising along with temperature, charge carrier number increases, so resistance value reduces, the signal that so just can send the last one by thermistor when temperature is high is to controllor for step-by-step motor 121, controllor for step-by-step motor 121, after receiving this signal, just can effectively carry out follow-up work.
The ventilating opening 2 of aiming at when electric fan 11, for example, when aiming at ventilating opening that a NMOS pipe M1 and the 2nd NMOS pipe M2 control 2, first because electric fan 11 is towards this ventilating opening 2, thereby the contact knife of SP3T K switch will be connected external power supply and organizes corresponding output with this, thereby just have a grid that voltage is applied to respectively a NMOS pipe M1, on thermistor and the 2nd NMOS pipe M2 grid, the grid of managing M1 due to a NMOS is directly connected with external power supply, thereby there is higher voltage, so a NMOS pipe M1 connects, be communicated with electromagnet 41 and power supply, will alive in electromagnet 41 inside, and generation magnetic force, here magnetic force will pick up magnetic patch 42, magnetic patch 42 will be picked up with dust excluding plate 3, thereby ventilating opening 2 will be opened, electric fan 11 just can be good at the heat delivery in power distribution cabinet to extraneous like this, and simultaneously because thermistor is series relationship with the grid that the 2nd NMOS manages M2, thereby will carry out the effect of a dividing potential drop, when this ventilating opening 2 temperature are when lower, the resistance of thermistor will be larger, thereby it divides the voltage of walking also many, so the voltage that the 2nd NMOS pipe M2 grid is assigned to will be fewer, do not reach its conducting voltage, so the 2nd not conducting of NMOS pipe M2, do not have signal to be input to controllor for step-by-step motor 121, controllor for step-by-step motor 121 is not control step motor 123 rotations just.
Ventilating opening 2 is when wall, As time goes on the temperature at this place will slowly raise, As time goes on the resistance of the thermistor at corresponding this place also can slowly diminish, when the voltage of getting to the grid of the 2nd NMOS pipe M2 when diminishing is greater than the conducting voltage of this pipe, the 2nd NMOS pipe M2 will conducting, electric current on power supply will be input in controllor for step-by-step motor 121, control output one control signal to stepping motor 123, thereby controllor for step-by-step motor 121 will rotate by control step motor 123, electric fan 11 will turn to, thereby the contact knife of SP3T K switch also can be along with motion, three outputs of this SP3T K switch all also couple from the input (different with the input that NMOS pipe couples) in controllor for step-by-step motor 121, when controllor for step-by-step motor 121 control step motors 123 turn to an output, the contact knife of SP3T K switch will switch on power and this output, first this output will be input to a signal of telecommunication in controllor for step-by-step motor 121, controllor for step-by-step motor 121 will stop operating by control step motor 123, represent that now electric fan 11 has forwarded on another ventilating opening 2, on this ventilating opening 2, the corresponding NMOS of electromagnet 41 pipe also can conducting simultaneously, thereby electromagnet 41 produces magnetic force, pick up dust excluding plate 3, electric fan 11 be can be good at the heat delivery of power distribution cabinet inside to extraneous, effectively increased the heat dispersion of power distribution cabinet, the operation principle of three ventilating openings and process are all identical.
In sum, by temperature sensor RW, whether detect ventilating opening 2 towards wall, by stepping motor 123 and controllor for step-by-step motor 121, control the rotation of electric fan 11, so just can effectively guarantee that the corresponding ventilating opening 2 of electric fan 11 is not towards wall, effectively avoided the existence of wall to cause the heat of ventilation hole surrounding cannot in time limited distributing, the temperature of ventilation hole surrounding is raise, its heat will be circulated in power distribution cabinet again, the problem that temperature in power distribution cabinet raises again, has increased the heat dispersion of power distribution cabinet greatly.
The above is only preferred implementation of the present utility model, and protection range of the present utility model is also not only confined to above-described embodiment, and all technical schemes belonging under the utility model thinking all belong to protection range of the present utility model.Should be understood that; for those skilled in the art; in the some improvements and modifications that do not depart under the utility model principle prerequisite; these improvements and modifications also should be considered as protection range of the present utility model; it should be noted that: ventilating mechanisms of the present utility model is not necessarily only for power distribution cabinet herein; the product that can generate heat with square housing and inner member for other, such as frequency converter etc.
The above is only preferred implementation of the present utility model, and protection range of the present utility model is also not only confined to above-described embodiment, and all technical schemes belonging under the utility model thinking all belong to protection range of the present utility model.It should be pointed out that for those skilled in the art, in the some improvements and modifications that do not depart under the utility model principle prerequisite, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (5)
1. the ventilating mechanisms of a power distribution cabinet, comprise the ventilating opening being arranged on three sides of power distribution cabinet, it is characterized in that: described three ventilating openings are equipped with temperature sensor around, also comprise the air-supply arrangement being arranged in power distribution cabinet, wherein, when the temperature that this ventilating opening detected when ventilating opening place temperature sensor that air-supply arrangement is aimed at is greater than preset value, air-supply arrangement turns to, and aims at other ventilating openings.
2. the ventilating mechanisms of power distribution cabinet according to claim 1, is characterized in that: described air-supply arrangement comprises electric fan and the driving mechanism for driving electric fan to rotate, and described driving mechanism and temperature sensor couple.
3. the ventilating mechanisms of power distribution cabinet according to claim 2, it is characterized in that: described driving mechanism comprises stepping motor, controllor for step-by-step motor and signal generating circuit, described stepping motor rotating shaft is fixedly connected with electric fan, described stepping motor and signal generating circuit all couple with controllor for step-by-step motor, and described signal generating circuit also couples with temperature sensor.
4. the ventilating mechanisms of power distribution cabinet according to claim 1, is characterized in that: described ventilating opening top is also provided with dust excluding plate, and described dust excluding plate top is also provided with for driving dust excluding plate to cover the adsorbing mechanism of ventilating opening.
5. the ventilating mechanisms of power distribution cabinet according to claim 4, is characterized in that: described driving mechanism comprises electromagnet and be fixed in the magnetic patch on dust excluding plate, and described electromagnet is fixed on ventilating opening top, and also couples with signal generating circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420433716.6U CN204012325U (en) | 2014-08-02 | 2014-08-02 | The ventilating mechanisms of power distribution cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420433716.6U CN204012325U (en) | 2014-08-02 | 2014-08-02 | The ventilating mechanisms of power distribution cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204012325U true CN204012325U (en) | 2014-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420433716.6U Expired - Fee Related CN204012325U (en) | 2014-08-02 | 2014-08-02 | The ventilating mechanisms of power distribution cabinet |
Country Status (1)
| Country | Link |
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| CN (1) | CN204012325U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106159753A (en) * | 2016-08-21 | 2016-11-23 | 张玉华 | A kind of power distribution cabinet with strong heat sinking function |
| CN106909191A (en) * | 2017-04-21 | 2017-06-30 | 温州电力设计有限公司 | Running environment and realtime monitoring method in the cabinet of instant inserted and instant using type switch board |
-
2014
- 2014-08-02 CN CN201420433716.6U patent/CN204012325U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106159753A (en) * | 2016-08-21 | 2016-11-23 | 张玉华 | A kind of power distribution cabinet with strong heat sinking function |
| CN106159753B (en) * | 2016-08-21 | 2018-05-22 | 飞策防爆电器有限公司 | A kind of power distribution cabinet with strong heat sinking function |
| CN106909191A (en) * | 2017-04-21 | 2017-06-30 | 温州电力设计有限公司 | Running environment and realtime monitoring method in the cabinet of instant inserted and instant using type switch board |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20150802 |
|
| EXPY | Termination of patent right or utility model |