CN203617183U - Waterproof keyboard of intelligent water meter - Google Patents
Waterproof keyboard of intelligent water meter Download PDFInfo
- Publication number
- CN203617183U CN203617183U CN201320784132.9U CN201320784132U CN203617183U CN 203617183 U CN203617183 U CN 203617183U CN 201320784132 U CN201320784132 U CN 201320784132U CN 203617183 U CN203617183 U CN 203617183U
- Authority
- CN
- China
- Prior art keywords
- magnetic
- water meter
- buttons
- sensitive components
- button
- 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.)
- Expired - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 230000006698 induction Effects 0.000 abstract description 6
- 238000007789 sealing Methods 0.000 abstract description 6
- 238000013459 approach Methods 0.000 abstract 1
- 239000003292 glue Substances 0.000 abstract 1
- 230000005426 magnetic field effect Effects 0.000 abstract 1
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 239000012528 membrane Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Images
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- Input From Keyboards Or The Like (AREA)
- Push-Button Switches (AREA)
Abstract
The utility model discloses a waterproof keyboard of an intelligent water meter. The keyboard comprises multiple buttons and magnetic-sensitive components in one to one correspondence with the buttons, magnets are respectively inlaid in the bottoms of the buttons, the buttons are fixed on a shell of the water meter, and the magnetic-sensitive components are fixed on a control circuit board in a sealed cavity of the water meter. The buttons are separated from the magnetic-sensitive components, i.e., the buttons and the magnetic-sensitive components are respectively fixed on the shell and the control circuit board, and the buttons and magnetic-sensitive components realize switch-on/off via magnetic induction. When the button is pressed down by an external force, the permanent magnet approaches the magnetic-sensitive component, and the magnetic-sensitive components generates a switch-on signal due to the magnetic field effect; and when the external force is removed, the button is automatically popped up, the permanent magnetic moves far from an induction area of the magnetic-sensitive component, the magnetic field is far away, and the magnetic-sensitive component generates a switch-off signal. The magnetic-sensitive components are welded on the control circuit board and sealed in the sealed cavity, a sealing ring can be mounted between the sealed cavity and a bottom casing of the water meter, a seal groove of the sealing ring can be filled with glue to enable the sealed cavity to reach the IP168 waterproof requirements, and better waterproof performance is provided.
Description
Technical field
The utility model relates to a kind of intellectual water meter, is specifically related to a kind of waterproff keyboard of intellectual water meter.
Background technology
The waterproff keyboard of the common use of intellectual water meter is membrane keyboard at present, and button, together with switch sections pressure viscosity, relies on winding displacement to be connected with control circuit board.There is following defect in water meter in this kind of keyboard applications: water-proofing time is limited, can not soak for a long time; The winding displacement of drawing from keyboard is flexible print winding displacement, and flexibility is limited, easily fractures, and water meter annular seal space will be the reserved through wires hole of winding displacement, and through wires hole place waterproof is difficult to reach IP68 requirement.
Utility model content
The intellectual water meter keyboard that provides a kind of water resistance good is provided the purpose of this utility model.
The disclosed this intellectual water meter waterproff keyboard of the utility model, this keyboard comprise bottom be inlaid with some buttons of magnet and with key position magneto sensor one to one, button is fixed on the shell of water meter, and magneto sensor is fixed on the control circuit board in water meter annular seal space.
Described magneto sensor can be any one in Hall element, TMR transducer or tongue tube.
Described magneto sensor and affiliated control circuit board are welded and fixed.
Described button adopts from resilience button, utilizes the strain of button to realize the relative position variation of button and magneto sensor.
Described magnet adopts permanent magnet.
Operation principle of the present utility model is as follows: the lower end of button is inlaid with permanent magnet, switch sections is magneto sensor, button separates with switch sections, and they are individually fixed on the control circuit board on the shell of water meter and in annular seal space, realize switching function between the two by magnetic induction.In the time that external force is pressed button, permanent magnet is near magneto sensor, and magneto sensor is subject to magnetic fields to produce switch closure signals; In the time that external force is removed, button is upspring automatically, and magnet shifts out magneto sensor induction region, and magnetic field produces switch cut-off signal away from, magneto sensor.
Magneto sensor is welded on control circuit board and is sealed in annular seal space, between annular seal space and the drain pan of water meter, sealing ring can be installed, and make annular seal space reach the waterproof requirement of IP68 to encapsulating in the seal groove of installation sealing ring, watermeter shell need not be considered the problem of waterproof, there is better water resistance.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Embodiment mono-, as shown in Figure 1, the disclosed this intellectual water meter waterproff keyboard of the utility model, comprise bottom be inlaid with some buttons 1 of permanent magnet 11 and with button 1 position magneto sensor 2 one to one.Magneto sensor 2 adopts Hall element.Button 1 is fixed on the shell 3 of water meter, and Hall element is welded on the control circuit board 4 in water meter annular seal space.Button 1 adopts from resilience button, and the relative position that utilizes the strain of button 1 self to realize itself and Hall element changes.
The overall dimension of Hall element is 3*5mm, and the button size of membrane keyboard must be greater than 9mm, so the number of keys of keyboard can be had a surplus than many one times of membrane keyboard, makes like this control circuit board 4 of water meter can configure more control function.
Embodiment bis-, the magneto sensor of the present embodiment adopts TMR transducer, and other structure is with embodiment mono-.
Embodiment tri-, the magneto sensor of the present embodiment adopts tongue tube, and other structure is with embodiment mono-
Operation principle of the present utility model is as follows: the lower end of button 1 is inlaid with permanent magnet 11, switch sections is magneto sensor 2, button 1 separates with switch sections, and they are individually fixed on the control circuit board 4 on the shell 3 of water meter and in annular seal space, realize switching function between the two by magnetic induction.In the time that external force is pressed button 1, permanent magnet 11 is near magneto sensor, and magneto sensor is subject to magnetic fields to produce switch closure signals; In the time that external force is removed, button 1 is upspring automatically, and permanent magnet 11 shifts out magneto sensor induction region, magnetic field away from, magneto sensor 2 produces switch cut-off signal.
Because magneto sensor 2 is welded on control circuit board 4 and is sealed in annular seal space, between annular seal space and the drain pan of water meter, sealing ring can be installed, and make annular seal space reach the waterproof requirement of IP68 to encapsulating in the seal groove of installation sealing ring, watermeter shell need not be considered the problem of waterproof, has better water resistance.
Claims (5)
1. an intellectual water meter waterproff keyboard, it is characterized in that: this keyboard comprise bottom be inlaid with some buttons of magnet and with key position magneto sensor one to one, button is fixed on the shell of water meter, and magneto sensor is fixed on the control circuit board in water meter annular seal space.
2. intellectual water meter waterproff keyboard as claimed in claim 1, is characterized in that: described magneto sensor can be any one in Hall element, TMR transducer or tongue tube.
3. intellectual water meter waterproff keyboard as claimed in claim 1, is characterized in that: described magneto sensor and described control circuit board are welded and fixed.
4. intellectual water meter waterproff keyboard as claimed in claim 1, is characterized in that: described button adopts from resilience button.
5. intellectual water meter waterproff keyboard as claimed in claim 1, is characterized in that: described magnet adopts permanent magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320784132.9U CN203617183U (en) | 2013-12-04 | 2013-12-04 | Waterproof keyboard of intelligent water meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320784132.9U CN203617183U (en) | 2013-12-04 | 2013-12-04 | Waterproof keyboard of intelligent water meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203617183U true CN203617183U (en) | 2014-05-28 |
Family
ID=50769810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320784132.9U Expired - Lifetime CN203617183U (en) | 2013-12-04 | 2013-12-04 | Waterproof keyboard of intelligent water meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203617183U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108199706A (en) * | 2017-12-28 | 2018-06-22 | 浙江中控自动化仪表有限公司 | Explosion-proof intrinsic safety type button and its keyboard |
| CN109976211A (en) * | 2019-03-11 | 2019-07-05 | 西安洋流潜水设备科技有限公司 | A kind of hand held controller for underwater equipment |
| WO2020032825A1 (en) * | 2018-08-07 | 2020-02-13 | Сергей Михайлович ИВАНОВ | Magnetic keyboard |
-
2013
- 2013-12-04 CN CN201320784132.9U patent/CN203617183U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108199706A (en) * | 2017-12-28 | 2018-06-22 | 浙江中控自动化仪表有限公司 | Explosion-proof intrinsic safety type button and its keyboard |
| WO2020032825A1 (en) * | 2018-08-07 | 2020-02-13 | Сергей Михайлович ИВАНОВ | Magnetic keyboard |
| CN109976211A (en) * | 2019-03-11 | 2019-07-05 | 西安洋流潜水设备科技有限公司 | A kind of hand held controller for underwater equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140528 |
|
| CX01 | Expiry of patent term |