CN207649801U - A kind of battery type digital display manometer - Google Patents
A kind of battery type digital display manometer Download PDFInfo
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- CN207649801U CN207649801U CN201721644261.2U CN201721644261U CN207649801U CN 207649801 U CN207649801 U CN 207649801U CN 201721644261 U CN201721644261 U CN 201721644261U CN 207649801 U CN207649801 U CN 207649801U
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- mainboard
- liquid crystal
- crystal display
- rear cover
- battery
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Abstract
The utility model discloses a kind of battery type digital display manometers, include rear cover mouthpiece, sensor function plate, mainboard, liquid crystal display, shell and battery, the sensor probe of sensor function postlaminar part is connected and fixed after putting on O-ring seals with rear cover mouthpiece, mainboard is fixed by a peripheral frame, peripheral frame is connected to together with mainboard in rear cover mouthpiece, and mainboard is electrically connected with sensor function plate；Liquid crystal display is connected by conductive zebra item, and battery connects mainboard, and liquid crystal display is embedded in shell.The utility model is low in energy consumption, service life is long, digital display precision is high, temperature coefficient is stablized by using battery powered；And compact can be applied to by changing bottom base on each different industrial equipment.Liquid crystal display can allow the operator to intuitively view work at present equipment state, solve the problems, such as to lead to measurement error because of range estimation.
Description
Technical field
The utility model is related to instrumentation devices technical fields, and in particular to a kind of pressure gauge for detecting air pressure.
Background technology
Mechanical compression table is usually used in industrial pneumatic equipment, is conveniently operated personnel and is checked whether equipment works at any time
In normal condition.But mechanical compression table must keep vertical in utilization, pressure gauge can only be looked squarely, and have parallax, read
It is poor, sluggish big that number can only estimate reading, the linearity, and temperature coefficient is big, not vibration resistance, cannot overload, overload and vibration easily lead to damage
It is bad.Lead to the poor reliability of mechanical compression table due to the above reasons, need to often safeguard, and difficult in maintenance.
Utility model content
The utility model in view of the drawbacks of the prior art, provides one kind simple in structure, easy to use, compact, display
Precision height, easy-to-read battery type digital display manometer.
In order to solve the above technical problems, the utility model adopts the following technical solution：A kind of battery type digital display manometer,
It is characterized in that：Include rear cover mouthpiece, sensor function plate, mainboard, liquid crystal display, shell and battery, shell and rear cover
Mouthpiece in conjunction with the fixed shell for forming pressure gauge, the sensor probe of sensor function postlaminar part put on after O-ring seals with
Rear cover mouthpiece is connected and fixed, and rear cover mouthpiece make-up is cased with an interior casing seal device；Mainboard is fixed by a peripheral frame, peripheral frame
It is connected in rear cover mouthpiece together with mainboard, mainboard is electrically connected with sensor function plate；Liquid crystal display passes through conductive spot
Horse item is electrically connected with mainboard, and battery connects mainboard and forms power supply structure, and liquid crystal display, which is embedded in constitute in shell, shows structure.
Further, the conductive zebra item is embedded in liquid crystal display fixed frame and sticks mainboard, and liquid crystal display is by saturating
The pressing of bright mirror frame is fixed on conductive zebra item, and liquid crystal display in shell, makes liquid crystal display by transparent frame build-in
It is not easily susceptible to damage.
Further, battery installing port is equipped in peripheral frame, button cell is inserted into and is consolidated by the battery installing port in peripheral frame
It is scheduled between sensor function plate and mainboard, forms the power supply mechanism of pressure gauge.
Further, the sensor function plate is fixed to by countersunk head screw in rear cover mouthpiece.
Further, it is equipped with display cover in the front of shell, display cover fixes transparent frame and liquid crystal display
Inside the housing.
Further, the sensor probe is favour stone varistor sensing head, and internal is 4 pressure-sensitive electricity of favour stone
Hinder full-bridge circuit.
The mechanical detection sensor of tradition machinery formula pressure gauge is changed to what four varistors formed by entire body
Favour stone full-bridge sensing head, output was no longer as being driven by the mechanical drive display pointer variation in the past.But by by pressure
Variation is converted to change in electric, and calculation of pressure is carried out by program.Previous mechanical indicator is replaced with LCD liquid crystal display screen
It changes, it can intuitive observed pressure transformation.Whole system is powered using a button cell, is carried out to circuit without external cabling
Individually power supply, and it is low in energy consumption, service life is long.
Also have following structure feature：
Battery capacity detection function：By carrying out self automatic detection to cells electricity, can real-time display go out to work as
Preceding remaining capacity, convenient for intuitively being expressed current device battery.
Reserved externally fed design：The supply voltage of 4.5v is converted to by two external reserved 12~24V of pin pair voltages
It exporting, the switching diode and voltage dependent resistor in circuit carry out superpressure to power supply, and reversal connection shields to circuit system,
Subsequent zener diode plays pressure stabilization function.
Design of Temperature Compensation：The thermo-compensator of a 4.7K is pulled down in pressure-responsive head, when ambient temperature is sent out
When changing, corresponding change occurs for the voltage that the corresponding resistance is assigned to, and is converted to this signal by programmed algorithm
Corresponding temperature compensation coefficient realizes the inhibition to temperature drift, keeps collected pressure more stable accurate.
Low power dissipation design：It (powers on, handles when acquisition signal by controlling the control powered indirectly to pressure-responsive head
Powered off when signal), the using electricity wisely when control (refreshing frequency 4HZ) of LCD display frequencies reaches operation.After running 35s, into sleep
Sleep mode further saves power consumption.
Unit switches calibration function：Tetra- kinds of units of PSI, MPA, bar, kgf are allowed hand over by button long-press to toggle,
Zero migration is calibrated by short-press realization.
When work, the pressure-responsive head (inside is 4 favour stone varistor full-bridge circuits) of sensor function collects
Differential pressure signal, by arrange needle pass the signal to mainboard.It transmits a signal to chip by mainboard again to process, chip-count
Show that signal is transmitted to display port by conductive zebra item and is shown according to output after processing.
The utility model is low in energy consumption, service life is long, digital display precision is high, temperature coefficient is stablized by using battery powered；
And compact can be applied to by changing bottom base on each different industrial equipment.Liquid crystal display can make operation
Personnel can intuitively view work at present equipment state, solve the problems, such as that range estimation leads to measurement error, thus can answer extensively
It is matched for precise pressure regulating valve, pneumatic triple piece is mating, and pressure vessel is mating, the pressure display system lamp work of pneumatic system
On industry pneumatic equipment.
Description of the drawings
Fig. 1 is the utility model three-dimensional structure diagram；
Fig. 2 is the three-dimensional structure diagram of another angle of the utility model；
Fig. 3 is the utility model decomposition chart.
In figure, 1 is rear cover mouthpiece, and 2 be interior casing seal device, and 3 be O-ring seals, and 4 be sensor function plate, and 5 are
Countersunk head screw, 6 be peripheral frame, and 7 be mainboard, and 8 be liquid crystal display fixed frame, and 9 be conductive zebra item, and 10 be liquid crystal display, and 11 are
Bright mirror frame, 12 be shell, and 13 be display cover, and 14 be battery, and 15 be sensor probe.
Specific implementation mode
In the present embodiment, referring to FIG. 1, FIG. 2 and FIG. 3, the battery type digital display manometer includes rear cover mouthpiece 1, passes
Sensor feature board 4, mainboard 7, liquid crystal display 10, shell 12 and battery 14, shell 12 are combined fixed formed with rear cover mouthpiece 1
The shell of pressure gauge, the sensor probe 15 at 4 rear portion of sensor function plate are connect after putting on O-ring seals 3 with rear cover mouthpiece 1
Fixed, the make-up of rear cover mouthpiece 1 is cased with an interior casing seal device 2, and rear cover mouthpiece 1 is for connecting vehicle equipment；Mainboard 7 is logical
A peripheral frame 6 fixation is crossed, peripheral frame 6 is connected to together with mainboard 7 in rear cover mouthpiece 1, and mainboard 7 is electrically connected with sensor function plate 4
It connects；Liquid crystal display 10 is electrically connected by conductive zebra item 9 with mainboard 7, and battery 14 connects mainboard 7 and forms power supply structure, liquid crystal
Display screen 10, which is embedded in constitute in shell 12, shows structure.
The conduction zebra item 9 is embedded in liquid crystal display fixed frame 8 and sticks mainboard 7, and liquid crystal display 10 is by transparent mirror
The pressing of frame 11 is fixed on conductive zebra item 9, and liquid crystal display 10 in shell 12, makes liquid crystal by 11 build-in of transparent frame
Display screen 10 is not easily susceptible to damage.
Battery installing port is equipped in peripheral frame 6, button cell 14 is inserted and secured on biography by the battery installing port in peripheral frame 6
Between sensor feature board 4 and mainboard 7, the power supply mechanism of pressure gauge is formed.
The sensor function plate 4 is fixed to by countersunk head screw 5 in rear cover mouthpiece 1.
It is equipped with display cover 13 in the front of shell 12, display cover 13 fixes transparent frame 11 and liquid crystal display 10
Inside shell 12.
The sensor probe 15 is favour stone varistor sensing head, and internal is 4 favour stone varistor full-bridges
Circuit.
The utility model is described in detail above, it is described above, only the preferred embodiment of the utility model and
, when the application practical range cannot be limited, i.e., all according to the made equivalent changes and modifications of the application range, it all should still belong to this practicality
In novel covering scope.
Claims (5)
1. a kind of battery type digital display manometer, it is characterised in that：Include rear cover mouthpiece, sensor function plate, mainboard, liquid crystal
Display screen, shell and battery, shell are combined the fixed shell for forming pressure gauge with rear cover mouthpiece, sensor function postlaminar part
Sensor probe is connected and fixed after putting on O-ring seals with rear cover mouthpiece, and rear cover mouthpiece make-up is cased with an interior casing seal
Device；Mainboard is fixed by a peripheral frame, and peripheral frame is connected to together with mainboard in rear cover mouthpiece, mainboard and sensor function plate
Electrical connection；Liquid crystal display is electrically connected by conductive zebra item with mainboard, and battery connects mainboard and forms power supply structure, liquid crystal display
Screen constitutes in shell and shows structure.
2. battery type digital display manometer according to claim 1, it is characterised in that：The conduction zebra item is embedded in liquid crystal
In screen fixed frame and mainboard is sticked, liquid crystal display is fixed on by the pressing of transparent frame on conductive zebra item, and liquid crystal display is logical
Transparent frame build-in is crossed in shell.
3. battery type digital display manometer according to claim 1, it is characterised in that：Battery installing port is equipped in peripheral frame,
Button cell is inserted and secured on by the battery installing port in peripheral frame between sensor function plate and mainboard, forms the confession of pressure gauge
Motor structure.
4. battery type digital display manometer according to claim 1, it is characterised in that：The sensor function plate passes through countersunk head
Screw is fixed in rear cover mouthpiece.
5. battery type digital display manometer according to claim 1, it is characterised in that：The sensor probe is pressure-responsive
Head, internal is the favour stone full-bridge circuit that 4 varistors are constituted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721644261.2U CN207649801U (en) | 2017-11-30 | 2017-11-30 | A kind of battery type digital display manometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721644261.2U CN207649801U (en) | 2017-11-30 | 2017-11-30 | A kind of battery type digital display manometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207649801U true CN207649801U (en) | 2018-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721644261.2U Active CN207649801U (en) | 2017-11-30 | 2017-11-30 | A kind of battery type digital display manometer |
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| Country | Link |
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| CN (1) | CN207649801U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107830951A (en) * | 2017-11-30 | 2018-03-23 | 广东诺能泰自动化技术有限公司 | A kind of battery type digital display manometer |
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2017
- 2017-11-30 CN CN201721644261.2U patent/CN207649801U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107830951A (en) * | 2017-11-30 | 2018-03-23 | 广东诺能泰自动化技术有限公司 | A kind of battery type digital display manometer |
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