CN206742687U - Self-closing door power distribution cabinet - Google Patents
Self-closing door power distribution cabinet Download PDFInfo
- Publication number
- CN206742687U CN206742687U CN201720525790.4U CN201720525790U CN206742687U CN 206742687 U CN206742687 U CN 206742687U CN 201720525790 U CN201720525790 U CN 201720525790U CN 206742687 U CN206742687 U CN 206742687U
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- Prior art keywords
- power distribution
- cabinet
- self
- distribution cabinet
- closing door
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Abstract
Self-closing door power distribution cabinet, including the cabinet door that cabinet and cabinet are hinged, it is characterised in that：One rack of rotation connection above the cabinet door, with rack level and engaging and being provided with a gear above the cabinet, the gear is fixedly connected with a motor, the rack is provided with the position-limit mechanism of a conflict rack away from the side of the gear, the motor is controlled by induction installation work, the induction installation includes travel switch, and when cabinet door is opened, the travel switch exports induced signal；Human body sensing device, it is coupled to travel switch and is worked in response to induced signal, when people is away from cabinet, the human body sensing device exports timing signal；Timing means, human body sensing device is coupled to, starts timing when receiving timing signal, enabling signal is exported after preset time；The motor acts in response to enabling signal, so as to realize that, when forgetting to close cabinet door, the cabinet door of the power distribution cabinet can Self-resetting.
Description
Technical field
Power distribution cabinet technical field is the utility model is related to, more particularly to a kind of self-closing door power distribution cabinet.
Background technology
Power distribution cabinet（Case）Sub-power power distribution cabinet（Case）And light distribution cabinet（Case）, metering cabinet（Case）, be distribution system end
Level equipment.Power distribution cabinet is the general designation of motor control center.Power distribution cabinet is used in the occasion that load is more dispersed, loop is less；
Motor control center is used for the occasion that load is concentrated, loop is more.Their electric energy a certain circuit of upper level controller switching equipment
Distribute to load nearby.This grade of equipment reply load provides protection, monitoring and control.
Existing power distribution cabinet needs frequently debugging, to ensure to need using different uses, so frequent switch gate is needed,
And staff is possible to occur that the situation for forgetting to close cabinet door occurs in real work, and cabinet door is in opening and just had
It may damage.
Utility model content
The purpose of this utility model is to provide a kind of self-closing door power distribution cabinet, when forgetting to close cabinet door, the cabinet of the power distribution cabinet
Door can Self-resetting.
Above-mentioned purpose of the present utility model technical scheme is that：
Self-closing door power distribution cabinet, including the cabinet door that cabinet and cabinet are hinged, one rack of the cabinet door top rotation connection are described
Horizontal with rack and engage and be provided with a gear above cabinet, the gear is fixedly connected with a motor, described in the rack deviates from
The side of gear is provided with the position-limit mechanism of a conflict rack, and the motor is controlled by induction installation work, the induction installation
Including
Travel switch, when cabinet door is opened, the travel switch exports induced signal；
Human body sensing device, it is coupled to travel switch and is worked in response to induced signal, when people is away from cabinet, the people
Body induction installation exports timing signal；
Timing means, human body sensing device is coupled to, starts timing when receiving timing signal, after preset time
Export enabling signal；
The motor acts in response to enabling signal.
By using above-mentioned technical proposal, being coordinated by gear and rack makes pinion rotation, so as to be moved with moving gear, leads to
Cross rack and haul a movement, so as to play the characteristics of closing cabinet door, the setting of position-limit mechanism, for contradicting rack, prevent tooth
Bar departs from gear during motion, and above-mentioned motor is controlled by and worked with induction installation, and the induction installation includes row
Cheng Kaiguan, human body sensing device and timing means, when cabinet door is opened, travel switch exports induced signal, now people's body-sensing
Answer device to electrically activate, represent that nearby someone is working when detecting people, now timing means is not-time, when not detecting people
When, timing means starts timing, and the setting of timing means prevents personnel are of short duration from leaving the characteristics of causing to close the door by mistake, so set,
Play and cabinet door can be closed when there be nobody nearby, so as to play a protective role to a certain extent.
As improvement of the present utility model, the position-limit mechanism includes being arranged on projection, one end and the projection at the top of cabinet
The elastic component that is fixedly connected and the limited block for being fixedly connected on the elastic component other end.
By using above-mentioned technical proposal, because rack has certain angle rotation during motion, so setting
Elastic component has been put, has been played by oneself deforming upon to being provided as using.
As improvement of the present utility model, the elastic component is arranged to spring.
As improvement of the present utility model, the spring overcoat is provided with sleeve pipe.
By using above-mentioned technical proposal, the setting of sleeve pipe prevents spring from being bent in the situation for receiving external force.
As improvement of the present utility model, the human body sensing device includes pyroelectric infrared sensor and is connected to heat and releases
The not circuit of electric infrared sensor output end.
By using above-mentioned technical proposal, pyroelectric infrared sensor can according to human body distribute infrared be to sense
No someone, there is the characteristics of cost is low, and because pyroelectric infrared sensor can export high level when sensing someone, then
Concatenate a not circuit and high level signal be converted into low level signal, so when people away from when can export timing signal.
As improvement of the present utility model, the pyroelectric infrared sensor include housing, optical filter, FET and
Pyroelectricity element, the housing are provided with through hole, and the optical filter is connected in the through hole, and the FET and heat are released
Electric device is located at the enclosure interior of the pyroelectric infrared sensor, and the pyroelectricity element is connected to the grid of the FET
Between ground terminal, the FET drain exports sampled voltage, and its source electrode is connected to high level.
By using above-mentioned technical proposal, the main function of optical filter is only to allow infrared ray of the wavelength at 10 μm or so
(IR wavelength that human body is sent) is by and filtering light, sunshine and other radiation, to suppress extraneous interference.It is red
Outer induction source is generally made up of two pyroelectricity elements in series or in parallel, and the electrode of the two pyroelectricity elements is on the contrary, ring
Border background radiation almost has identical effect to two pyroelectricity elements, its caused pyroelectric effect is cancelled out each other, defeated
Go out signal to be close to zero.Once in someone's intrusion detection region, human infrared radiation is focused on by partial mirror, and by pyroelectricity
Element receives, and because angle is different, the heat that two panels pyroelectricity element receives is different, and pyroelectricity energy is also different, it is impossible to complete
It is complete to offset, the output control signal after processing circuit processes.Pyroelectric effect is similar with piezo-electric effect, refers to the change due to temperature
Change and cause the phenomenon of plane of crystal electric charge.Pyroelectric infrared sensor is made up of ceramic oxide or piezolectric crystal unit,
Electrode is made on two surfaces of element, and when temperature has △ T change in the range of Sensor monitoring, pyroelectric effect can be in two electricity
It is extremely upper to produce electric charge △ Q, i.e., a faint voltage △ V are produced between electrodes.Because its output impedance is high, sensing
There is a FET to carry out impedance conversion in device.Electric charge △ Q can be tied by the ion in air caused by pyroelectric effect
Close and disappear, i.e., when ambient temperature-stable is constant, △ T=O, sensor is without output.Human body or the larger animal of volume have
Constant body temperature, typically at 37 degree, so the infrared ray of 10 μm or so of specific wavelength can be sent, when human body enters detection zone, because
Human body temperature and environment temperature have a difference, after 10 μm or so of infrared ray of human-body emitting is strengthened by Fresnel lens optical filter
Gather in infrared induction source (pyroelectricity element), infrared induction source will lose electric charge when receiving human infrared radiation and put down
Weighing apparatus, outwards discharges electric charge, and then produces △ T and circuit output, subsequent conditioning circuit can just produce after handling after testing to the periphery by △ T
Sampled signal.
As improvement of the present utility model, the FET drain is provided with EMI electric capacity with ground terminal.
By using above-mentioned technical proposal, make the magnitude of voltage that drain electrode exports close to constant, and its output is not easy by magnetic disturbance
Influence.
As improvement of the present utility model, the fet gate is provided with biasing resistor with ground terminal.
It is current signal because electrocaloric effect generates signal, so passing through effect on the scene by using above-mentioned technical proposal
Should grid and the ground terminal of pipe a resistance is set, current signal can be converted into voltage signal, and can be by adjusting biasing resistor
Resistance adjust its conducting threshold value, that is, regulation pyroelectric infrared sensor sensitivity, it is simple in construction, it is easy to accomplish.
As improvement of the present utility model, the timing means includes counter and execution module, and the counter includes
Triggering end and spilling end, the triggering end are coupled to the output end of not circuit, and the spilling end is coupled to execution module.
By using above-mentioned technical proposal, counter of the prior art counts including crystal oscillator, is counted using this feature
When, there is the characteristics of cost is low simple in construction, the keying for being provided for controlled motor of execution module.
As improvement of the present utility model, the execution module includes NPN triode and relay, and the relay includes
End is overflowed in coil and normally opened contact, the base stage coupling of the NPN triode, and colelctor electrode is coupled to power supply, and emitter stage is coupled to line
Circle, the normally opened contact are serially connected with motor.
By using above-mentioned technical proposal, NPN triode herein is used as switching component, when base stage receives high electricity
During ordinary mail, NPN triode conducting, coil is set to obtain electric work, so that contact closure is worked with drive motor.
In summary, the utility model has the advantages that：Being coordinated by gear and rack makes pinion rotation, so as to
Band moving gear moves, and hauls a movement by rack, so as to play the characteristics of closing cabinet door, the setting of position-limit mechanism, is used for
Rack is contradicted, prevents that rack from departing from gear during motion, and above-mentioned motor is controlled by and worked with induction installation, should
Induction installation includes travel switch, human body sensing device and timing means, when cabinet door is opened, travel switch output sensing letter
Number, now human body sensing device must electrically activate, and represent that nearby someone is working when detecting people, and now timing means is not-time,
When not detecting people, timing means starts timing, and the setting of timing means prevents of short duration leave of personnel from causing what is closed the door by mistake
Feature, so set, play and cabinet door can be closed when there be nobody nearby, so as to play a protective role to a certain extent.
Brief description of the drawings
Fig. 1 is power distribution cabinet overall structure diagram；
Fig. 2 is Fig. 1 A portions enlarged drawing；
Fig. 3 is Fig. 1 B portions enlarged drawing；
Fig. 4 is induction installation connection circuit figure.
In figure, 1, cabinet door；11st, articulated elements；2nd, cabinet；3rd, induction installation；31st, pyroelectric infrared sensor；311st, optics
Filter；32nd, not circuit；33rd, timing means；4th, rack；5th, gear；6th, position-limit mechanism；61st, it is raised；62nd, spring；63rd, it is spacing
Block；64th, sleeve pipe；7th, travel switch.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Referring to figs. 1 to shown in Fig. 3, a kind of self-closing door power distribution cabinet, including cabinet door 1 and the cabinet 2 that is rotatablely connected with cabinet door 1,
Wherein, articulated elements 11 is provided with cabinet door 1, the articulated elements 11 is provided with being rotatablely connected with rack 4 above cabinet 2
Motor (being not shown) and the gear 5 being fixedly connected with the output shaft of motor, the upper wall of the motor and cabinet 2 can pass through
Bolt is fixedly connected, and the output shaft of motor is arranged in wall and fixed with gear 5, and rack 4 is provided with one away from the side of gear 5 and supported
The position-limit mechanism 6 of rack 4 is touched, the motor is controlled by be worked with induction installation 3；The position-limit mechanism 6 includes being arranged on the top of cabinet 2
Projection 61, one end and the elastic components that are fixedly connected of projection 61 and the limited block 63 for being fixedly connected on the elastic component other end, bullet
Property part be arranged to spring 62, be arranged with sleeve pipe 64 outside spring 62, the setting of sleeve pipe 64 prevents spring 62 from receiving the situation of external force
Bending.
Shown in reference picture 1 and Fig. 4, induction installation 3 includes travel switch 7, human body sensing device and timing means 33, its
In, travel switch 7 is arranged on the remote side wall with the rotation connection of cabinet door 1 position of cabinet 2, and is opened in cabinet door 1 corresponding to stroke
Close 7 positions and be provided with spacing block set, when cabinet door 1 is closed, the spacing block set can contradict with travel switch 7, with
The action of driving trip switch 7, human body sensing device include the pyroelectric infrared sensor 31 concatenated with travel switch 7 and are connected to
The not circuit 32 of the output end of pyroelectric infrared sensor 31, pyroelectric infrared sensor 31 include housing, optical filter 311,
FET and pyroelectricity element, housing are provided with through hole, and optical filter 311 is connected in through hole, FET and pyroelectricity
Element is located at the enclosure interior of pyroelectric infrared sensor 31, and pyroelectricity element is connected between the grid of FET and ground terminal,
FET drain is provided with EMI electric capacity with ground terminal, and fet gate is provided with biasing resistor R1 with ground terminal and exports sampled voltage,
Its source electrode is connected to high level, and the main function of optical filter 311 is only to allow wavelength (human body is sent in 10 μm or so of infrared ray
IR wavelength) by and light, sunshine and other radiation being filtered, to suppress extraneous interference.Infrared induction source is led to
Often it is made up of two pyroelectricity elements in series or in parallel, the electrode of the two pyroelectricity elements is on the contrary, ambient background radiation
Almost there is identical effect to two pyroelectricity elements, its caused pyroelectric effect is cancelled out each other, output signal approaches
It is zero.Once in someone's intrusion detection region, human infrared radiation is focused on by partial mirror, and is received by pyroelectricity element,
Because angle is different, the heat that two panels pyroelectricity element receives is different, and pyroelectricity energy is also different, it is impossible to is completely counterbalanced by, passes through
Output control signal after processing circuit processes.Pyroelectric effect is similar with piezo-electric effect, refers to cause due to the change of temperature
The phenomenon of plane of crystal electric charge.Pyroelectric infrared sensor 31 is made up of ceramic oxide or piezolectric crystal unit, in element two
Electrode is made on individual surface, and when temperature has △ T change in the range of Sensor monitoring, pyroelectric effect can produce on two electrodes
Raw electric charge △ Q, i.e., produce a faint voltage △ V between electrodes.Because its output impedance is high, have in the sensor
One FET carries out impedance conversion.Electric charge △ Q caused by pyroelectric effect can by the ion in air with reference to and disappear
Lose, i.e., when ambient temperature-stable is constant, △ T=O, sensor is without output.Human body or the larger animal of volume have constant
Body temperature, typically at 37 degree, so the infrared ray of 10 μm or so of specific wavelength can be sent, when human body enters detection zone, because of human temperature
Degree has difference with environment temperature, and 10 μm or so of infrared ray of human-body emitting after the enhancing of Fresnel lens optical filter by gathering
In infrared induction source (pyroelectricity element), infrared induction source will lose charge balance when receiving human infrared radiation, to
Outer release electric charge, and then produce △ T and be current signal because electrocaloric effect generates signal by △ T circuit outputs to the periphery,
So setting a resistance R1 by the grid and ground terminal of scene effect pipe, current signal can be converted into voltage signal, and can
Resistance by adjusting biasing resistor R1 adjusts the threshold value of its conducting, that is, adjusts the sensitive of pyroelectric infrared sensor 31
Degree, it is simple in construction, it is easy to accomplish, subsequent conditioning circuit handle after testing after with regard to low level signal can be produced, not circuit 32 connects heat
The output end of electric infrared sensor 31 is released, for the low level signal to be converted into high level signal, timing means 33 includes meter
Number device, execution module, wherein, counter includes Enable Pin and overflows end, the output end connection of Enable Pin NAND gate, overflows end coupling
Execution module is connect, the execution module includes NPN triode VT and relay, and relay includes coil KM1 and normally opened contact KM2,
End is overflowed in VT base stage coupling, and colelctor electrode is coupled to power supply, and emitter stage is coupled to coil, and normally opened contact is connected with motor.
Specific works mode is, when staff opens cabinet door 1, forms switch and starts output induced signal, now people
Body obtains electric work close to device, when people away from when, pyroelectric infrared sensor 31 export low level signal, be converted to by NOT gate
High level signal, this hour counter are triggered, started counting up, when after preset time, the spilling end output of counter starts
Signal, so as to which electric motor rotates, cabinet door 1 is closed being coordinated by rack 4 with gear 5.
This specific embodiment is only that it is not to limitation of the present utility model, ability to explanation of the present utility model
Field technique personnel can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but
As long as all protected in right of the present utility model by Patent Law.
Claims (10)
1. self-closing door power distribution cabinet, including the cabinet door (1) that cabinet (2) and cabinet (2) are hinged, it is characterised in that：On the cabinet door (1)
Side's one rack of rotation connection (4), with rack (4) level and engaging and being provided with a gear (5), the tooth above the cabinet (2)
Wheel (5) is fixedly connected with a motor, and the rack (4) is provided with the spacing of a conflict rack (4) away from the side of the gear (5)
Mechanism (6), the motor are controlled by induction installation (3) work, and the induction installation (3) includes
Travel switch (7), when cabinet door (1) is opened, the travel switch (7) exports induced signal；
Human body sensing device, it is coupled to travel switch (7) and is worked in response to induced signal, it is described when people is away from cabinet (2)
Human body sensing device exports timing signal；
Timing means (33), is coupled to human body sensing device, starts timing when receiving timing signal, after preset time
Export enabling signal；
The motor acts in response to enabling signal.
2. self-closing door power distribution cabinet according to claim 1, it is characterised in that：The position-limit mechanism (6) includes being arranged on cabinet
The elastic component and be fixedly connected on the elastic component other end that projection (61), one end at the top of body (2) are fixedly connected with raised (61)
Limited block (63).
3. self-closing door power distribution cabinet according to claim 2, it is characterised in that：The elastic component is arranged to spring (62).
4. self-closing door power distribution cabinet according to claim 3, it is characterised in that：Sleeve pipe is arranged with outside the spring (62)
(64)。
5. self-closing door power distribution cabinet according to claim 1, it is characterised in that：It is red that the human body sensing device includes pyroelectricity
Outer sensor (31) and the not circuit (32) for being connected to pyroelectric infrared sensor (31) output end.
6. self-closing door power distribution cabinet according to claim 5, it is characterised in that：The pyroelectric infrared sensor (31) includes
Housing, optical filter (311), FET and pyroelectricity element, the housing are provided with through hole, the optical filter (311)
It is connected in the through hole, the FET and pyroelectricity element are located in the housing of the pyroelectric infrared sensor (31)
Portion, the pyroelectricity element are connected between grid and the ground terminal of the FET, the FET drain output sampling electricity
Pressure, its source electrode are connected to high level.
7. self-closing door power distribution cabinet according to claim 6, it is characterised in that：The FET drain is provided with ground terminal
EMI electric capacity.
8. self-closing door power distribution cabinet according to claim 7, it is characterised in that：The fet gate is provided with inclined with ground terminal
Put resistance.
9. self-closing door power distribution cabinet according to claim 8, it is characterised in that：The timing means (33) include counter and
Execution module, the counter include triggering end and overflow end, and the triggering end is coupled to the output end of not circuit (32), institute
State spilling end and be coupled to execution module.
10. self-closing door power distribution cabinet according to claim 9, it is characterised in that：The execution module include NPN triode and
Relay, the relay include coil and normally opened contact, and end, colelctor electrode coupling are overflowed in the base stage coupling of the NPN triode
In power supply, emitter stage is coupled to coil, and the normally opened contact is serially connected with motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720525790.4U CN206742687U (en) | 2017-05-11 | 2017-05-11 | Self-closing door power distribution cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720525790.4U CN206742687U (en) | 2017-05-11 | 2017-05-11 | Self-closing door power distribution cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206742687U true CN206742687U (en) | 2017-12-12 |
Family
ID=60565483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720525790.4U Expired - Fee Related CN206742687U (en) | 2017-05-11 | 2017-05-11 | Self-closing door power distribution cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206742687U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109118657A (en) * | 2018-10-10 | 2019-01-01 | 湖南阳光电力科技有限公司 | A kind of safe and reliable long-range automatic stop self-resetting type metering device and its control method |
| CN110015509A (en) * | 2019-04-10 | 2019-07-16 | 上海理工大学 | Aeroge Intelligent light wave takes out thermal insulation cabinet |
| CN110952873A (en) * | 2019-12-18 | 2020-04-03 | 潘承燕 | Refrigerator is with automatic door closing device based on capacitance variation |
| CN111082343A (en) * | 2020-01-13 | 2020-04-28 | 宁波奉化平西配电科技有限公司 | Dehumidification cooling block terminal |
| CN113991485A (en) * | 2021-11-05 | 2022-01-28 | 河南中坤实业有限公司 | Low-voltage fixed switch cabinet |
| CN114243486A (en) * | 2021-12-15 | 2022-03-25 | 广东电网有限责任公司 | Switch board door closing device |
-
2017
- 2017-05-11 CN CN201720525790.4U patent/CN206742687U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109118657A (en) * | 2018-10-10 | 2019-01-01 | 湖南阳光电力科技有限公司 | A kind of safe and reliable long-range automatic stop self-resetting type metering device and its control method |
| CN109118657B (en) * | 2018-10-10 | 2024-05-24 | 湖南阳光电力科技有限公司 | Safe and reliable remote automatic-stopping and automatic-resetting metering device and control method thereof |
| CN110015509A (en) * | 2019-04-10 | 2019-07-16 | 上海理工大学 | Aeroge Intelligent light wave takes out thermal insulation cabinet |
| CN110952873A (en) * | 2019-12-18 | 2020-04-03 | 潘承燕 | Refrigerator is with automatic door closing device based on capacitance variation |
| CN110952873B (en) * | 2019-12-18 | 2021-08-27 | 宁夏迎福食品科技有限公司 | Refrigerator is with automatic door closing device based on capacitance variation |
| CN111082343A (en) * | 2020-01-13 | 2020-04-28 | 宁波奉化平西配电科技有限公司 | Dehumidification cooling block terminal |
| CN113991485A (en) * | 2021-11-05 | 2022-01-28 | 河南中坤实业有限公司 | Low-voltage fixed switch cabinet |
| CN113991485B (en) * | 2021-11-05 | 2024-06-07 | 河南中坤实业有限公司 | Low-voltage fixed switch cabinet |
| CN114243486A (en) * | 2021-12-15 | 2022-03-25 | 广东电网有限责任公司 | Switch board door closing device |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171212 |