CN104362037A - Two-way airflow switch - Google Patents
Two-way airflow switch Download PDFInfo
- Publication number
- CN104362037A CN104362037A CN201410541453.5A CN201410541453A CN104362037A CN 104362037 A CN104362037 A CN 104362037A CN 201410541453 A CN201410541453 A CN 201410541453A CN 104362037 A CN104362037 A CN 104362037A
- Authority
- CN
- China
- Prior art keywords
- balance
- plate
- balance plate
- valve body
- strong point
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
- H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P13/00—Indicating or recording presence, absence, or direction, of movement
- G01P13/02—Indicating direction only, e.g. by weather vane
- G01P13/025—Indicating direction only, e.g. by weather vane indicating air data, i.e. flight variables of an aircraft, e.g. angle of attack, side slip, shear, yaw
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
Abstract
The invention discloses a two-way airflow switch comprising a valve block. A windward plate which swings with wind is hung to the lower portion of the valve block. A balance plate is mounted in the valve block. Two ends of the balance plate are provided with a first contact and a second contact; the middle of the balance plate is fitted in the valve block through a rotating shaft. A swing rod is further mounted in the valve block; the top of the swing rod is in hinged fit with the valve block. The windward plate is hung to the bottom of the swing rod. The top of the swing rod is connected with a balance retainer which acts on the balance plate. The balance retainer is provided with a first support point and a second support point which are provided on two sides of the middle of the balance plate. The two-way airflow switch is simple in structure and convenient to use, has the two contacts corresponding to the wind direction, allows simultaneous detection of airflow and wind direction, allows detection of induced air status and air supply status of the inside of an air channel and is lower in cost and convenient to popularize and use.
Description
Technical field
The present invention relates to technical field of electric equipment, particularly relate to a kind of two-way current switch.
Background technology
Power distribution cabinet also can be called as distribution box, and from conversational implication, power distribution cabinet is exactly the cabinet of the electric component be integrated with for power distribution.The effect of power distribution cabinet carries out distribution and control to power consumption equipment, circuit occur overload, short circuit and electric leakage time, power distribution cabinet can also provide power-off protection.
Power distribution cabinet mainly contains the effect of two aspects: one is carry out distribution and control to power consumption equipment; two be circuit occur overload, short circuit and electric leakage time; power-off protection is provided; when circuit breaks down; be beneficial to control fault coverage also fast and easy find out fault point and got rid of in time, need not large-area power-cuts.In addition, in power distribution cabinet, the various proterctive equipment of convenient placement is as prevented the fuse (fuse) of short circuit, prevents the air switch etc. transshipped, can play a protective role to circuit and power consumption equipment.That is thing focused on one piece, maintain easily, check.In general power distribution cabinet, is comparatively common in working shop of enterprise, workshop, such as light distribution box, power distributing cabinet etc.
Along with the development of society, the continuous progress of science and technology, electricity consumption and the control panel in industrial each field maximize gradually; For ensureing main equipment safe operation, then large-scale current metal armouring closed switch cabinet is indispensable.The large-scale current metal armouring closed switch cabinet produced at present, for preventing temperature rise too high during operation, general employing wind cooling temperature lowering, present manufacturer adopts control blower fan in two ways and carries out wind cooling temperature lowering: a kind of is adopt main circuit current to control the running of blower fan as criterion; Another kind of then employing ambient temperature controls the running of blower fan as criterion.
Current switch is for the on off operating mode of the flow and air-flow that detect air-flow, when in airduct, wind speed reaches set point, an one switch contact is opened, and another one closes (SPDT), can be used for alarm signal or chain object, to ensure the normal operation of system.In the heat dissipation wind channel of switch cubicle, current switch is installed usually to detect the speed of air-flow, to maintain the operation that cooling fan is normally gone.In existing current switch, only have a switch contact, be used for detect distinguished and admirable, if detect wind direction, usually need two current switch are installed simultaneously, one be used for detect air inducing, another be then used for detect air-supply, cost is higher.
Summary of the invention
For overcoming problems of the prior art, the invention provides the two-way current switch that a kind of structure is simple, convenient and practical, this current switch has two contacts corresponding with wind direction, distinguished and admirable and wind direction can be detected simultaneously, the air inducing state in air channel and ventilation state can be detected, equipment cost is lower, is convenient to promote the use of.
A kind of two-way current switch, comprise valve body, described valve body lower portion is hung with the plate windward swung with the wind, in described valve body, balance plate is installed, the two ends of this balance plate are provided with the first contact and the second contact, middle part is engaged in valve body by rotating shaft, also swing arm is housed in valve body, this swing arm top coordinates with valve body is hinged, described plate is windward suspended on the bottom of swing arm, the top of described swing arm is connected with the balance keeper acting on balance plate, and this balance keeper has first strong point and second strong point that withstand both sides in the middle part of described balance plate.
In the present invention, balance keeper is for keeping the balance of balance plate, when being in windless condition, first strong point of balance keeper and second strong point are supported on the both sides of balance plate, keep the balance of balance plate, and make the first contact and the second contact be in off-state, after the one side of plate is windward stressed, swing arm band dynamic balancing keeper tilts, balance plate is tilted, one of them contact is triggered, the first wind direction signals sent, if the another side of plate is stressed windward, balance plate tilts to the opposing party, after contact is triggered, send the second wind direction signals, to detect the flow direction of wind.
As improvement, be provided with two in described valve body and touch post, lay respectively at immediately below the first contact and the second contact.
Utilization touches post and coordinates with contact, with closure signal circuit, sends wind direction signals, on the other hand, touches the effect that post also has limiting balance plate gradient, prevents balance plate over-tilting.
As improvement, the two ends of described balance plate are also fixed with balancing weight.
By increasing coordinating block balancing weight, can improve the sensitivity that balance plate tilts, even if when wind speed is less, the level of the plate that also can disequilibrate, promotes the inclination of balance plate.Further improvement, described balancing weight is symmetrical respectively in the both sides of balance plate.
As improvement, described balance keeper has two vertical support arms, and the summit of two support arms is respectively first strong point and second strong point.Described balance keeper is fixed on the top of swing arm, and is U-shaped structure.
In the present invention, balance keeper is U-shaped structure, and have two vertical support arms, the summit of two support arms is respectively first strong point and second strong point, is supported on the both sides in balance plate, keeps it under windless condition, be in level.
In addition, described balance keeper is bending arc upwards, and first strong point and second strong point lay respectively at two end points of arc.
Structure of the present invention is simple, easy to use, and have two contacts corresponding with wind direction, can detect distinguished and admirable and wind direction, can detect the air inducing state in air channel and ventilation state, equipment cost is lower, is convenient to promote the use of simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of two-way current switch;
Fig. 2 is two-way current switch schematic internal view.
Embodiment
As depicted in figs. 1 and 2, a kind of two-way current switch, comprise valve body 1, valve body lower portion is hung with the plate windward 2 swung with the wind, balance plate 5 is installed in valve body 1 and two touch post 7, the two ends of this balance plate 1 are provided with two contacts, are the first contact and the second contact respectively, middle part is engaged in valve body 1 by rotating shaft, and two touch post 7 and lay respectively at immediately below the first contact and the second contact.In valve body, swing arm 3 is also housed, this swing arm 3 top coordinates with valve body 1 is hinged, plate 2 is suspended on the bottom of swing arm 3 windward, the top of swing arm is connected with the balance keeper 4 acting on balance plate 5, and this balance keeper has first strong point 8 and second strong point 9 withstanding both sides in the middle part of balance plate 5.
In the present invention, balance keeper is for keeping the balance of balance plate, when being in windless condition, first strong point of balance keeper and second strong point are supported on the both sides of balance plate, keep the balance of balance plate, and make the first contact and the second contact be in off-state, after the one side of plate is windward stressed, swing arm band dynamic balancing keeper tilts, balance plate is tilted, one of them contact props up and touches post and be triggered, the first wind direction signals sent, if the another side of plate is stressed windward, balance plate tilts to the opposing party, after contact props up and touches post, send the second wind direction signals, to detect the flow direction of wind.
Utilization touches post and coordinates with contact, with closure signal circuit, sends wind direction signals, on the other hand, touches the effect that post also has limiting balance plate gradient, prevents balance plate over-tilting.
The two ends of balance plate 5 are also fixed with balancing weight 10, and balancing weight 10 symmetry is respectively in the both sides of balance plate 5.By increasing coordinating block balancing weight, can improve the sensitivity that balance plate tilts, even if when wind speed is less, the level of the plate that also can disequilibrate, promotes the inclination of balance plate.
Balance keeper 4 has two vertical support arms, and the summit of two support arms is respectively first strong point 8 and second strong point 9.Balance keeper is fixed on the top of swing arm, and is U-shaped structure.
Balance keeper 4 is U-shaped structure, and have two vertical support arms, the summit of two support arms is respectively first strong point and second strong point, is supported on the both sides in balance plate, keeps it under windless condition, be in level.
In another embodiment, balance keeper 4 is bending arc upwards, and first strong point 8 and second strong point 9 lay respectively at two end points of arc.
The foregoing is only better implementation example of the present invention, be not limited to the present invention, all within the present invention's spirit and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. a two-way current switch, comprise valve body, described valve body lower portion is hung with the plate windward swung with the wind, it is characterized in that, in described valve body, balance plate is installed, the two ends of this balance plate are provided with the first contact and the second contact, middle part is engaged in valve body by rotating shaft, also swing arm is housed in valve body, this swing arm top coordinates with valve body is hinged, described plate is windward suspended on the bottom of swing arm, the top of described swing arm is connected with the balance keeper acting on balance plate, this balance keeper has first strong point and second strong point that withstand both sides in the middle part of described balance plate.
2. two-way current switch as claimed in claim 1, is characterized in that, is provided with two and touches post in described valve body, lays respectively at immediately below the first contact and the second contact.
3. two-way current switch as claimed in claim 1, is characterized in that, the two ends of described balance plate are also fixed with balancing weight.
4. two-way current switch as claimed in claim 3, is characterized in that, described balance keeper has two vertical support arms, and the summit of two support arms is respectively first strong point and second strong point.
5. two-way current switch as claimed in claim 4, is characterized in that, described balance keeper is fixed on the top of swing arm, and is U-shaped structure.
6. two-way current switch as claimed in claim 1, is characterized in that, described balance keeper is bending arc upwards, and first strong point and second strong point lay respectively at two end points of arc.
7. two-way current switch as claimed in claim 3, is characterized in that, described balancing weight is symmetrical respectively in the both sides of balance plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410541453.5A CN104362037B (en) | 2014-10-14 | 2014-10-14 | A kind of two-way current switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410541453.5A CN104362037B (en) | 2014-10-14 | 2014-10-14 | A kind of two-way current switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104362037A true CN104362037A (en) | 2015-02-18 |
| CN104362037B CN104362037B (en) | 2018-04-17 |
Family
ID=52529292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410541453.5A Active CN104362037B (en) | 2014-10-14 | 2014-10-14 | A kind of two-way current switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104362037B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104712815A (en) * | 2015-04-03 | 2015-06-17 | 马千里 | Wind direction control valve |
| CN107389140A (en) * | 2017-08-17 | 2017-11-24 | 上海建科建筑节能技术股份有限公司 | Subway tunnel testing natural ventilation rate is put |
| CN110752573A (en) * | 2019-11-01 | 2020-02-04 | 董宝锋 | Lightning rod device for broadcast television transmitting tower |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1115487A (en) * | 1994-05-04 | 1996-01-24 | 菲利浦电子有限公司 | Control device for an electrical apparatus |
| CN2840307Y (en) * | 2005-10-20 | 2006-11-22 | 周碧辉 | The deadweight control switch |
| CN2847506Y (en) * | 2005-12-17 | 2006-12-13 | 江苏远望仪器有限公司 | Vertical float level switch |
| CN201898085U (en) * | 2010-04-13 | 2011-07-13 | 上海奉申制冷控制器有限公司 | Target sheet type flow switch |
| CN103165343A (en) * | 2011-12-12 | 2013-06-19 | 天津有序环境科技发展有限公司 | Target-type flow direction and flow switch |
-
2014
- 2014-10-14 CN CN201410541453.5A patent/CN104362037B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1115487A (en) * | 1994-05-04 | 1996-01-24 | 菲利浦电子有限公司 | Control device for an electrical apparatus |
| CN2840307Y (en) * | 2005-10-20 | 2006-11-22 | 周碧辉 | The deadweight control switch |
| CN2847506Y (en) * | 2005-12-17 | 2006-12-13 | 江苏远望仪器有限公司 | Vertical float level switch |
| CN201898085U (en) * | 2010-04-13 | 2011-07-13 | 上海奉申制冷控制器有限公司 | Target sheet type flow switch |
| CN103165343A (en) * | 2011-12-12 | 2013-06-19 | 天津有序环境科技发展有限公司 | Target-type flow direction and flow switch |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104712815A (en) * | 2015-04-03 | 2015-06-17 | 马千里 | Wind direction control valve |
| CN104712815B (en) * | 2015-04-03 | 2017-02-01 | 马千里 | Wind direction control valve |
| CN107389140A (en) * | 2017-08-17 | 2017-11-24 | 上海建科建筑节能技术股份有限公司 | Subway tunnel testing natural ventilation rate is put |
| CN110752573A (en) * | 2019-11-01 | 2020-02-04 | 董宝锋 | Lightning rod device for broadcast television transmitting tower |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104362037B (en) | 2018-04-17 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A two-way air flow switch Effective date of registration: 20221128 Granted publication date: 20180417 Pledgee: Lianghu Sub-branch of Zhejiang Shangyu Rural Commercial Bank Co.,Ltd. Pledgor: ZHEJIANG WANKE ELECTRIC EQUIPMENT CO.,LTD. Registration number: Y2022980023794 |