CN109506327B - Air conditioner for meeting room capable of being automatically closed based on state of meeting desktop - Google Patents

Air conditioner for meeting room capable of being automatically closed based on state of meeting desktop Download PDF

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Publication number
CN109506327B
CN109506327B CN201811243559.1A CN201811243559A CN109506327B CN 109506327 B CN109506327 B CN 109506327B CN 201811243559 A CN201811243559 A CN 201811243559A CN 109506327 B CN109506327 B CN 109506327B
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China
Prior art keywords
shell
air conditioner
floating
floating device
meeting
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CN201811243559.1A
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Chinese (zh)
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CN109506327A (en
Inventor
彭鸿琦
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Zhu Xiaoxiao
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/50Control or safety arrangements characterised by user interfaces or communication
    • F24F11/61Control or safety arrangements characterised by user interfaces or communication using timers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/50Control or safety arrangements characterised by user interfaces or communication
    • F24F11/56Remote control
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/89Arrangement or mounting of control or safety devices
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00Switches operated by change of a physical condition
    • H01H35/18Switches operated by change of liquid level or of liquid density, e.g. float switch
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2120/00Control inputs relating to users or occupants
    • F24F2120/10Occupancy

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention discloses an air conditioner for a conference room, which can be automatically closed based on the state of a conference desktop, and structurally comprises an air conditioner, an electric wire, an automatic closer, a conference desktop and desk legs, wherein the air conditioner is electrically connected with the automatic closer through the electric wire, the automatic closer is fixedly arranged on the conference desktop, the desk legs are vertically connected to the bottom of the conference desktop, the automatic closer consists of a circuit device, a first floating device, a second floating device, a shell, bolts and a support plate, the shell is cylindrical, the support plate is connected to the outer side of the bottom of the shell, the support plate is provided with the bolts, the bolts are respectively arranged at the diameter ends of the shell, and the support plate is connected to the conference desktop through the bolts: whether the air conditioner is closed or not can be judged according to the state and the duration of the desktop, the waste of electric quantity caused by forgetting to close the air conditioner by staff is reduced, and the trouble that the staff is troubled back and forth is avoided.

Description

Air conditioner for meeting room capable of being automatically closed based on state of meeting desktop
Technical Field
The invention relates to the field of refrigeration equipment, in particular to an air conditioner for a conference room, which can be automatically closed based on the state of a conference desktop.
Background
The air conditioner is a common cooling electric appliance in modern society, is widely used in summer, needs to be turned on and turned off through a remote controller, but has high power consumption, and the electricity fee continuously rises in summer.
In small and medium-sized companies, companies often concentrate on meeting rooms for meeting, due to the concentration and the duration of discussion problems, the air conditioner is often forgotten to be turned off after the meeting is scattered, particularly, the air conditioner is turned on for one night by forgetting to turn off the air conditioner after the meeting is given at night, electricity in one night is wasted, and finally, a person who leaves cannot determine whether to turn off the air conditioner by himself often needs to return to the company for checking, so that the company is troubled.
When a meeting is opened, hands and feet usually contact with the conference table to enable the conference table top to vibrate, or when a meeting is opened, voice is transmitted through the conference table top to enable the conference table top to vibrate, and the conference table top is kept calm in an unmanned meeting state.
Disclosure of Invention
The invention mainly aims to overcome the defects of the prior art and provide an air conditioner for a conference room, which can be automatically closed based on the state of a conference desktop.
The invention is realized by adopting the following technical scheme: an air conditioner for a conference room capable of being automatically closed based on the state of a conference desktop structurally comprises an air conditioner, an electric wire, an automatic closing device, a conference desktop and desk feet, wherein the air conditioner is electrically connected with the automatic closing device through the electric wire, the automatic closing device is fixedly installed on the conference desktop, the desk feet are vertically connected to the bottom of the conference desktop, the automatic closing device consists of a circuit device, a first floating device, a second floating device, a shell, bolts and a support plate, the shell is cylindrical, the support plate is connected to the outer side of the bottom of the shell, the support plate is provided with the bolts, the bolts are respectively arranged at the diameter ends of the shell, the support plate is connected to the conference desktop through the bolts, the top surface inside the shell is provided with the circuit device, the first floating device and the second floating device are arranged below the circuit device, the first floating device and the second floating device are consistent in structure, the shell is filled with liquid, and the first floating device and the second floating device float on the liquid.
Preferably, the first floating device comprises a floating ball, a connecting rod, a fixed shaft and a rotating block, the fixed shaft is located above the liquid filled in the shell, the fixed shaft is fixedly welded in the shell, the rotating block is provided with a through hole, the fixed shaft is in clearance fit with the through hole of the rotating block, the rotating block is connected with the floating ball through the connecting rod, and the floating ball is arranged above the liquid filled in the shell.
As optimizing, circuit arrangement comprises buckler, power, time-recorder, lead wire, anodal contact, busbar, negative pole contact, top in the buckler fixed connection casing, buckler internally mounted has power, time-recorder, the power passes through the electricity with the time-recorder to be connected, the buckler bottom is inlayed and is had the busbar, the both ends bottom of busbar contacts with the vertical state of anodal contact, negative pole contact respectively, anodal contact, negative pole contact are connected through lead wire and power, time-recorder electricity respectively, the time-recorder passes through the connection of electric lines with the air conditioner.
Preferably, the positive contact piece and the negative contact piece are respectively arranged on the rotating blocks of the second floating device and the first floating device.
Preferably, the liquid filled in the shell is water.
Preferably, the conductive strips are made of metal.
Advantageous effects
When the invention is used in a meeting room, the air conditioner is started through the remote controller, when a meeting is opened, a person contacts with a meeting table top, or sound waves of speaking of the person are transmitted in the meeting table top, the meeting table top can generate slight shaking vibration, because the bottom of the shell is attached to the meeting table top, when the meeting table top shakes, liquid in the shell is convenient to shake to drive the floating ball to move and be difficult to fix, the floating ball moves to drive the rotating block to rotate on the fixed shaft, so that the originally vertical positive contact piece and the vertical negative contact piece shake, the positive contact piece and the negative contact piece can be contacted with the conductive strip only in a vertical state, because the shaking and the inclination, the timer can not be electrified, only the short electrification can be carried out, and the timer can transmit signals to the air conditioner to be closed only after the electrification for 30 minutes, because the short electrification can not cause the air conditioner to be closed, after the meeting, the people leave the meeting room, forget under the condition of closing the air conditioner, because the meeting desktop is static, make liquid calm gradually, anodal contact, negative pole contact just in time are in the vertical state when the floater is fixed, and both make the time-recorder circular telegram begin to time with the busbar contact, and after static time lasts 30 minutes, the time-recorder gives the signal feedback to the operation that the air conditioner was closed, makes the air conditioner close by oneself, avoids the waste of electric quantity.
Compared with the prior art, the invention has the beneficial effects that: make the conference table produce the vibration through contact or the propagation of sound wave, and then make liquid produce undulant and make the unable circular telegram work of time-recorder, avoid air conditioner self-closing when the meeting is being opened and is being used, when the meeting room does not have the people, the time-recorder begins the circular telegram timing after the conference table is static, the quiescent condition more than half an hour just can automatic switching air conditioner, can judge whether to close the air conditioner through the state and the time length of desktop, reduce the staff and forget the waste to the electric quantity under the condition of closing the air conditioner, avoid the staff to make a round trip to worry.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a schematic structural diagram of an air conditioner for a conference room, which can be automatically turned off based on the state of a conference desktop.
Fig. 2 is a schematic view of the rest state structure of the self-closing device of the present invention.
Fig. 3 is a schematic view of the movement state structure of the self-closing device of the present invention.
Fig. 4 is a schematic structural diagram of a first floating device according to the present invention.
FIG. 5 is a schematic diagram of a circuit device according to the present invention.
In the figure: the automatic closing device comprises an air conditioner 1, an electric wire 2, a self-closing device 3, a conference table top 4, table legs 5, a circuit device a, a first floating device b, a second floating device c, a shell d, a bolt e, a support plate f, a floating ball b1, a connecting rod b2, a fixed shaft b3, a rotating block 4, a waterproof cover a1, a power supply a2, a timer a3, a lead wire a4, a positive contact piece a5, a conductive strip a6 and a negative contact piece a 7.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 5, the present invention provides a technical solution of an air conditioner for a conference room that can be automatically turned off based on the state of a conference desktop: the structure of the self-closing device comprises an air conditioner 1, an electric wire 2, a self-closing device 3, a conference table top 4 and table legs 5, wherein the air conditioner 1 is electrically connected with the self-closing device 3 through the electric wire 2, the self-closing device 3 is fixedly installed on the conference table top 4, the table legs 5 are vertically connected to the bottom of the conference table top 4, the self-closing device 3 consists of a circuit device a, a first floating device b, a second floating device c, a shell d, bolts e and support plates f, the shell d is cylindrical, the outer side of the bottom of the shell d is connected with the support plates f, the support plates f are provided with 2 bolts e, the 2 bolts e are respectively arranged at the diameter ends of the shell d, the support plates f are connected to the conference table top 4 through the bolts e, the top surface inside the shell d is provided with the circuit device a, the first floating device b and the second floating device c are arranged below the circuit device a, the first floating device b and the second floating device c are consistent in structure, the shell d is filled with liquid, and the first floating device b and the second floating device c float on the liquid.
Preferably, the first floating device b comprises a floating ball b1, a connecting rod b2, a fixed shaft b3 and a rotating block 4, the fixed shaft b3 is located above the liquid filled in the shell d, the fixed shaft b3 is fixedly welded in the shell d, the rotating block 4 is provided with a through hole, the fixed shaft b3 is in clearance fit with the through hole of the rotating block 4, the rotating block 4 is connected with the floating ball b1 through the connecting rod b2, the floating ball b1 is arranged above the liquid filled in the shell d, and the floating ball b1 enables the rotating block 4 to swing continuously when the liquid fluctuates.
Preferably, the circuit device a comprises a waterproof cover a1, a power supply a2, a timer a3, a lead wire a4, a positive contact a5, a conductive strip a6 and a negative contact a7, the waterproof cover a1 is fixedly connected to the inner top of the shell d, the power supply a2 and the timer a3 are installed inside the waterproof cover a1, the power supply a2 is electrically connected with the timer a3, the conductive strip a6 is embedded in the bottom of the waterproof cover a1, the bottoms of two ends of the conductive strip a6 are respectively in contact with the vertical state of the positive contact a5 and the negative contact a7, the positive contact a5 and the negative contact a7 are respectively electrically connected with the power supply a2 and the timer a3 through the lead wire a4, the timer a3 is connected with the air conditioner 1 through an electric wire 392, and the waterproof cover a1 can prevent water powder evaporated in liquid from entering the power supply a2 and the timer a3 so that the power supply a2 and the timer a3 are kept dry.
Preferably, the positive contact piece a5 and the negative contact piece a7 are respectively arranged on the rotating blocks 4 of the second floating device c and the first floating device b, and 2 rotating blocks 4 can drive the positive contact piece a5 and the negative contact piece a7 to swing, so that the instability of the positive contact piece a5 and the negative contact piece a7 is increased, and the probability of electrifying the timer a3 is reduced.
Preferably, the liquid filled in the housing d is water, and is easily shaken.
Preferably, the conductive strip a6 is made of metal, and can conduct electricity.
When the air conditioner is used in a meeting room, the air conditioner 1 is started through a remote controller, when a meeting is started, a person contacts with the meeting table top 4, or sound waves generated by speaking of the person are transmitted in the meeting table top, the meeting table top 4 generates slight shaking vibration, because the bottom of the shell d is attached to the meeting table top 4, when the meeting table top 4 shakes, liquid in the shell d is convenient to shake, the floating ball b1 is driven to move and is difficult to fix, the floating ball b1 moves to drive the rotating block 4 to rotate on the fixed shaft b3, the originally vertical positive contact piece a5 and the negative contact piece a7 generate shaking, because the positive contact piece a5 and the negative contact piece a7 can be in contact with the conductive strip a6 only in a vertical state, because the shaking and the inclination can not electrify the timer a3, only short-time electrification can be carried out, and the timer a3 can transmit signals to the air conditioner 1 to be closed only after the electrification for 30 minutes, because the short-time power-on can not cause the air conditioner 1 to be closed, after meeting, people leave a meeting room, and forget to close the air conditioner, because the meeting desktop 4 is static, the liquid is gradually calm, when the floating ball b1 is fixed, the positive contact a5 and the negative contact a7 are just in the vertical state, the two contact with the conductive strip a6 to enable the timer a3 to be powered on for starting timing, after the static time lasts for 30 minutes, the timer a3 feeds back signals to the air conditioner 1 for closing operation, the air conditioner is automatically closed, and the waste of electric quantity is avoided.
Compared with the prior art, the invention has the technical progress that: make the conference table produce the vibration through contact or the propagation of sound wave, and then make liquid produce undulant and make the unable circular telegram work of time-recorder, avoid air conditioner self-closing when the meeting is being opened and is being used, when the meeting room does not have the people, the time-recorder begins the circular telegram timing after the conference table is static, the quiescent condition more than half an hour just can automatic switching air conditioner, can judge whether to close the air conditioner through the state and the time length of desktop, reduce the staff and forget the waste to the electric quantity under the condition of closing the air conditioner, avoid the staff to make a round trip to worry.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims (1)

1. The utility model provides an air conditioner for meeting room that state can be closed by oneself based on meeting desktop, its structure includes air conditioner (1), electric wire (2), self-closing ware (3), meeting desktop (4), table foot (5), air conditioner (1) is connected through electric wire (2) and self-closing ware (3) through the electricity, self-closing ware (3) fixed mounting is on meeting desktop (4), meeting desktop (4) bottom is connected with table foot (5) perpendicularly, its characterized in that:
the self-closing device (3) is composed of a circuit device (a), a first floating device (b), a second floating device (c), a shell (d), bolts (e) and a support plate (f), the shell (d) is cylindrical, the support plate (f) is connected to the outer side of the bottom of the shell (d), 2 bolts (e) are arranged on the support plate (f), the 2 bolts (e) are respectively arranged at the diameter ends of the shell (d), the support plate (f) is connected to a conference desktop (4) through the bolts (e), the circuit device (a) is arranged on the inner top surface of the shell (d), the first floating device (b) and the second floating device (c) are arranged below the circuit device (a), the first floating device (b) and the second floating device (c) are consistent in structure, liquid is filled inside the shell (d), and the first floating device (b) and the second floating device (c) are arranged below the circuit device (a), A second floating device (c) floating on the liquid;
the first floating device (b) consists of a floating ball (b1), a connecting rod (b2), a fixed shaft (b3) and a rotating block (4), wherein the fixed shaft (b3) is positioned above liquid filled in the shell (d), the fixed shaft (b3) is fixedly welded in the shell (d), the rotating block (4) is provided with a through hole, the fixed shaft (b3) is in clearance fit with the through hole of the rotating block (4), the rotating block (4) is connected with the floating ball (b1) through the connecting rod (b2), and the floating ball (b1) is arranged above the liquid filled in the shell (d);
the circuit device (a) consists of a waterproof cover (a1), a power supply (a2), a timer (a3), a lead (a4), a positive contact piece (a5), a conductive strip (a6) and a negative contact piece (a7), the waterproof cover (a1) is fixedly connected to the inner top of the shell (d), a power supply (a2) and a timer (a3) are arranged in the waterproof cover (a1), the power supply (a2) is electrically connected with the timer (a3), the bottom of the waterproof cover (a1) is embedded with a conductive strip (a6), the bottoms of the two ends of the conductive strip (a6) are respectively contacted with the vertical state of the positive contact (a5) and the negative contact (a7), the positive contact piece (a5) and the negative contact piece (a7) are respectively and electrically connected with a power supply (a2) and a timer (a3) through leads (a4), the timer (a3) is connected with the air conditioner (1) through an electric wire (2);
the positive contact piece (a5) and the negative contact piece (a7) are respectively arranged on the rotating block (4) of the second floating device (c) and the first floating device (b).
CN201811243559.1A 2018-10-24 2018-10-24 Air conditioner for meeting room capable of being automatically closed based on state of meeting desktop Active CN109506327B (en)

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CN201811243559.1A CN109506327B (en) 2018-10-24 2018-10-24 Air conditioner for meeting room capable of being automatically closed based on state of meeting desktop

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Application Number Priority Date Filing Date Title
CN201811243559.1A CN109506327B (en) 2018-10-24 2018-10-24 Air conditioner for meeting room capable of being automatically closed based on state of meeting desktop

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CN109506327B true CN109506327B (en) 2021-10-08

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2131146Y (en) * 1992-03-08 1993-04-28 张志斌 Anti-theft alarm with inclination and vibration inductions

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2109565U (en) * 1991-11-20 1992-07-08 袁笑河 Shaking sensor
FR2764130B1 (en) * 1997-06-03 1999-07-09 France Transfo Sa SELF-PROTECTION TRIGGER FOR UNDERWATER ELECTRIC TRANSFORMER
JP2010534966A (en) * 2007-07-26 2010-11-11 ズィシャン ファイズ Response device
CN101881484B (en) * 2009-05-05 2012-09-26 海尔集团公司 Voice controlled air conditioner
CN201464755U (en) * 2009-07-15 2010-05-12 北京京东方光电科技有限公司 Baseplate platform
CN103423834B (en) * 2012-05-25 2016-05-04 珠海格力电器股份有限公司 The control method of air-conditioner operation time
CN105373015A (en) * 2014-09-02 2016-03-02 陈奎发 Energy saving controller based on motion identification
CN105244225B (en) * 2015-10-15 2018-01-02 珠海格力电器股份有限公司 A kind of liquid-level switch and air-conditioning
CN206541194U (en) * 2016-11-02 2017-10-03 四川文理学院 A kind of machine room monitoring system based on ZigBee technology
CN206179449U (en) * 2016-11-03 2017-05-17 广州科资信息技术服务有限公司 All -in -one with vibration sensor
CN206210074U (en) * 2016-11-04 2017-05-31 内黄县昌兴生物机械设备有限公司 Air-conditioning remote control device for searching
CN207922482U (en) * 2017-12-11 2018-09-28 宁波梦居智能科技有限公司 Family room ambient intelligence air-conditioning system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2131146Y (en) * 1992-03-08 1993-04-28 张志斌 Anti-theft alarm with inclination and vibration inductions

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