CN205719148U - There is the electronic water meter of three anti-functions - Google Patents
There is the electronic water meter of three anti-functions Download PDFInfo
- Publication number
- CN205719148U CN205719148U CN201620336447.0U CN201620336447U CN205719148U CN 205719148 U CN205719148 U CN 205719148U CN 201620336447 U CN201620336447 U CN 201620336447U CN 205719148 U CN205719148 U CN 205719148U
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- Prior art keywords
- water meter
- housing
- functions
- electronic water
- circuit board
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- Withdrawn - After Issue
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Abstract
This utility model relates to a kind of electronic water meter with three anti-functions, including base, housing, discharge gauge assembly, globe valve assembly and main circuit board, case inside is provided with the mounting groove for installing main circuit board and for installing the installation cavity of the control circuit board of discharge gauge assembly, all being filled with the silicon gel that can be covered by respective lines plate in mounting groove and installation cavity, the wire pigtail in housing is coated with layer of silica gel；The first through hole for steam turnover is had on housing.Water meter of the present utility model uses the design of pass-through type structure, need not arrange sealing ring at the bonding crack of whole housing, the most do not do hermetically closed, steam can be realized the most penetrating by the first through hole, guarantee internal and external pressure balance in water meter case, effectively prevent the plastic cement deformation caused because external and internal pressure is uneven during water meter uses, avoid the problem that air tight structure steam easily enters to be difficult to out, causes steam to overstock simultaneously, add reliability and the service life of water meter.
Description
Technical field
This utility model relates to electronic water meter technical field, be particularly suitable for high temperature, high humidity, underwater environment have three
The electronic water meter of anti-function.
Background technology
The structure design of existing electronic water meter is general uses air-tightness three-proof design, the most mostly uses plate member seals rigid
Transparent adhesive tape or Cera Flava.Use such air-tightness to design, have a disadvantage in that
(1) butyronitrile material seal circle or the viton seal ring of air-tightness design structure is having oil pollution environment or table meter long
After time use, meeting is the most aging, weaken or lose the effect of sealing；Plastic cement products also there will be aging, change after using for a long time
The phenomenons such as crisp, deformation, cause sealing effectiveness to be deteriorated；
(2) when electronic water meter works under water, the hydraulic pressure that its shell bears and the pressure imbalance in air-tight cavity, cause
Plastic parts deformation, product sealing effectiveness is deteriorated, so that circuit board damp failure, directly affects the service life of electronic water meter；
(3) moisture easily invades the annular seal space of air-tightness design structure, and nothing after moisture entrance with pressure or variations in temperature
Method is discharged, and easily produces condensation in electronic water meter liquid crystal surface, even can corrode circuit board.
Authorization Notice No. be CN204440549U Chinese utility model patent " multi-user's intellectual water meter " (application number:
CN201520079696.1) disclosing a kind of structure, it contains upper shell, lower house, printed circuit board, essentic-water-meter, electronic
Valve, the region of swiping the card of upper shell is provided with baffle plate, and printed circuit board is by card reading circuit plate, main control board, wireless data transmission electricity
Road plate forms, and card reading circuit plate and wireless data transmission circuit board are fixed on main control board, printed circuit board sealant pouring and sealing
Relevant position inside upper shell；Upper and lower casing is adopted and is screwed connection, and electrodynamic valve and essentic-water-meter pipeline section use screw thread even
Connect fixing.Encapsulating mode used for printed circuit board is sealed by the water meter of this structure, can improve the water proofing property of water meter to a certain extent
Energy.
But, for above-mentioned water meter of the prior art, owing to printed circuit board is merely with sealant pouring and sealing, enter shell of water flowmeter
It can be caused certain pressure by internal hydraulic pressure, affects the optical transport flux of water meter photo-translating system.And for requiring
Bubble-tight water meter, good in order to ensure air-tightness, the many meetings of existing water meter arrange sealing ring in shell rim, waterproof to play
Effect, but, in high temperature, high humidity environment, it is difficult in steam is easily accessible housing discharge, in causing housing, steam overstocks,
The external and internal pressure of watchcase is uneven, and then causes the installing component compressive deformation in watchcase, affects water meter performance.
Utility model content
Technical problem to be solved in the utility model is the present situation for prior art, it is provided that a kind of waterproof, moisture resistance
Can be good, the optical transport flux of photo-translating system can be effectively improved and the three anti-functions of having of water meter dependability can be increased
Electronic water meter.
The technical scheme that the above-mentioned technical problem of this utility model solution is used is: a kind of electronic water with three anti-functions
Table, including base, housing, discharge gauge assembly, globe valve assembly and main circuit board, the both sides of described base are connected to
Water inlet pipe and outlet pipe, described base has the inner chamber for installing discharge gauge assembly, and described globe valve assembly is located at
On outlet pipe, described housing is located at above base and has the installing port in mating connection with the upper port of base intracavity, and it is special
Levy and be: described case inside is provided with the mounting groove for installing main circuit board and for installing the control of discharge gauge assembly
The installation cavity of wiring board processed, is all filled with the silicon gel that can be covered by respective lines plate in described mounting groove and installation cavity,
Wire pigtail in described housing is coated with layer of silica gel；The first through hole for steam turnover is had on described housing.
As improvement, in described mounting groove, it is additionally provided with the resistance to compression layer being covered in silicon gel surface.This resistance to compression layer can
Form being carried out casting by rigid epoxy composite material, it is also possible to be the band muscle plastic plate of one piece of injection mo(u)lding, this is set and resists
Laminate layer can resist hydraulic pressure to silicon gel and the pressure transmission of main circuit board, it is to avoid hydraulic pressure is too high to be caused brokenly main circuit board
Bad.
In such scheme, described housing includes upper shell and the lower house that can mutually fasten, and described mounting groove sets
On upper shell, described installation cavity is located on lower house, and this installation cavity is the most corresponding with the position of described installing port.This reality
With the upper and lower casing one-shot forming of new water meter, the structure mutually fastened is used to be easy to assembling.
For the ease of assembling, the edge of described upper shell is provided with the buckle of layout downwards, and correspondence, on described lower house
There is the draw-in groove matched with this buckle.Be provided with the first internal threaded column of layout downwards inside upper shell, corresponding, described under
The second internal threaded column that can align it is provided with the first internal threaded column, under the lower port of this second internal threaded column is exposed on housing
The bottom surface of housing, a screw sequentially passes through the second internal threaded column, the first internal threaded column by described upper shell with lower house locking even
Connect.Use buckle to be located by connecting in advance with draw-in groove, recycle this locking mechanism and upper-lower casing is locked, easy to assembly and firm
Gu；And the involutory junction of upper-lower casing is without arranging sealing ring, simplifies structure, provides bar for quick assembling further
Part.
Have the second through hole that the valve head for globe valve assembly stretches in housing on described lower house, arrange in described housing
Having the mounting box driving motor for installing globe valve assembly, this mounting box has lower port and top has supply lines and passes
Third through-hole, the medial surface of described lower house is formed with around second through hole arrange cannelure, described mounting box lower end
Mouthful edge be connected with this cannelure phase inserting, be coated with around the joining place of described mounting box and cannelure and third through-hole
Water-proof silica-gel.Said structure is set, it is simple to install the driving motor of globe valve assembly, and after ensure that and installing
Sealing.
Preferably, the top of described mounting box is additionally provided with the positive stop hook that electric wire can carry out combing.Such knot is set
Structure, the electric wire at mounting box top can carry out combing by positive stop hook, thus the problem that during avoiding assembling, electric wire is at random, for
Quickly and accurately assemble and provide convenient.
There is on lower house of the present utility model downwardly convex convex chamber, this convex chamber be two and be spaced be arranged in second lead to
The both sides in hole, and the bottom in each convex chamber is all spaced and is disposed with multiple first through hole, so that housing has preferable permeability.
In such scheme, the inner side of described upper shell is provided with the battery compartment for installing battery, at the bottom of described mounting groove
Portion is provided with the display screen that can expose upper shell outer surface.
Preferably, the surface of described upper shell has the screwed hole being connected with battery compartment, and in this screwed hole, dismountable type is even
Being provided with in being connected to a battery cover, and described screwed hole can be with the sealing ring of battery cover lower limb phase close-fitting.Use such knot
Structure, it is simple to change battery, and guarantee that battery compartment has the most waterproof, humidity resistance.
Preferably, the side of described upper shell has the socket for IC prepaid card of planting, and is communicated with IC inside this socket
Prepaid card read-write assembly, this IC prepaid card read-write assembly is connected with described main circuit board.
Compared with prior art, the utility model has the advantage of: water meter of the present utility model uses pass-through type structure to set
Meter, utilizes soft silicon gel to be encapsulated by wiring board encapsulating, coats water-proof silica-gel layer on wire pigtail, and on housing
Arrange and facilitate current and the first through hole of steam turnover housing cavity, use such structure, at the bonding crack of whole housing not
Need to arrange sealing ring, the most do not do hermetically closed, steam can be realized by the first through hole the most penetrating, it is ensured that in water meter case
Internal and external pressure balance, effectively prevent the plastic cement deformation caused because external and internal pressure is uneven during water meter uses, keeps away simultaneously
Exempt from the problem that air tight structure steam easily enters to be difficult to out, causes steam to overstock, add reliability and the service life of water meter；
Further, the light transmittance of the silicon gel that this utility model uses, more than 92%, can effectively carry as liquid crystal light transmission medium
High optical transmission energy and the reliability of reading, the most soft silicon gel can effectively stop that wiring board is entered by the steam in air
Row corrodes, and can effectively solve the sealing problem that the problems such as aging, delamination are brought, and protection circuit plate (PCBA) is not by high temperature, high humidity
Environment and the impact of stress, make water meter have the most waterproof, humidity resistance.
Accompanying drawing explanation
Fig. 1 is the part-structure schematic diagram of this utility model embodiment；
Fig. 2 is the exploded view of Fig. 1；
Fig. 3 is the exploded view of another angle of Fig. 1；
Fig. 4 is the sectional view of Fig. 1.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, this utility model is described in further detail.
As shown in figures 1-4, the present embodiment has the electronic water meter of three anti-functions and includes that base 1, housing 2, discharge are measured
Assembly 3, main circuit board 4 and globe valve assembly 5, the both sides of base 1 are connected to water inlet pipe 11 and outlet pipe 12, on base 1
Having the inner chamber 10 for installing discharge gauge assembly 3, globe valve assembly 5 is located on outlet pipe 12, and housing 2 is located at base 1
Top also has the installing port 20 in mating connection with the upper port of base 1 inner chamber 10.
The housing 2 of the present embodiment includes upper shell 21 and the lower house 22 that can mutually fasten, and the inner side of upper shell 21 is arranged
Having the mounting groove 211 for installing main circuit board 4, the inner side of lower house 22 is provided with for installing discharge gauge assembly 3
The installation cavity 221 of control circuit board 31, and this installation cavity 221 is the most corresponding with the position of institute installing port 20.Main circuit board 4 passes through
Electric wire 100 is connected with the control circuit board 31 of discharge gauge assembly 3, is filled with and can be covered by main circuit board 4 in mounting groove 211
Soft silicon gel 210, installation cavity 221 is filled with and the control circuit board 31 of discharge gauge assembly 3 can be covered
Silicon gel 220, is additionally provided with the resistance to compression layer 212 being covered in silicon gel 210 surface, the present embodiment in mounting groove 211
In resistance to compression layer 212 can be carried out casting by rigid epoxy composite material and form, it is also possible to be the band muscle of one piece of injection mo(u)lding
Plastic plate, arranges this resistance to compression layer 212 and can resist hydraulic pressure to silicon gel 210 and the pressure transmission of main circuit board 4.Due to firmly
Property transparent adhesive tape cure cycle is long, and stress cannot discharge, and is once fully cured, and easily pulls the electronic devices and components on circuit board, directly
Connect the service life affecting electronic water meter, and the present embodiment covers main circuit board 4 first with soft silicon gel, then organic
Silica hydrogel outer layer arranges rigid epoxy composite material layer, and silicon gel has certain elasticity, is not afraid of plastic cement deformation, is not afraid of tide
Gas cut loses, can at-60 DEG C～180 DEG C life-time service, it is to avoid the stress that the solidification of rigid transparent adhesive tape produces pulls electronics unit device
The problem of part.Housing 1 is coated with layer of silica gel on each electric wire 100 exit, the present embodiment is selected 482C silica gel, to play
Moistureproof, waterproof action.
In the present embodiment, the edge of upper shell 21 is provided with the buckle 217 of layout downwards, and correspondence, on lower house 22
There is the draw-in groove 225 matched with this buckle 217.The first internal threaded column 218 of layout downwards it is provided with inside upper shell 21, right
Answer, lower house 22 is provided with the second internal threaded column 226 that can align with the first internal threaded column 218, this second female thread
The lower port of post 226 exposes the bottom surface of lower house 22, and a screw sequentially passes through second internal threaded column the 226, first internal threaded column 218
Upper shell 21 is locked with lower house 22 and is connected.Use buckle 217 to be located by connecting in advance with draw-in groove 225, recycle this lock
Upper-lower casing is locked by locking structure, easy to assembly and firm.Have what the valve head 51 for globe valve assembly 5 stretched on lower house 22
Second through hole 222, lower house 22 has downwardly convex convex chamber 223, this convex chamber 223 be two and be spaced be arranged in second lead to
The both sides in hole 222, and the bottom in each convex chamber 223 be all spaced be disposed with multiple for steam turnover the first through hole 224.The present embodiment
Upper-lower casing relies on and carries buckle fastening, is not added with sealing ring, does not do hermetic closed at bonding crack, and current and steam can be by first
Through hole 224 passes in and out housing 2 inner chamber easily, it is achieved that steam is the most penetrating, it is ensured that internal and external pressure balance in water meter case 2, has
Effect avoids the plastic cement deformation caused during water meter uses because external and internal pressure is uneven, avoids air tight structure water simultaneously
The problem that vapour easily enters to be difficult to out, causes steam to overstock, adds reliability and the service life of water meter.
Being provided with the mounting box 6 driving motor for installing globe valve assembly 5 in housing 1, this mounting box 6 has lower end
Mouth top have the third through-hole 61 that supply lines passes, and the medial surface of lower house 22 are formed with around the second through hole 222 cloth
The cannelure 227 put, the edge of mounting box 6 lower port is connected with this cannelure 227 phase inserting, and has close in cannelure 227
Envelope packing ring 228, is coated with water-proof silica-gel around mounting box 6 and the joining place of cannelure 227 and third through-hole 61, in order to
The driving motor of globe valve assembly 5 is installed, and ensure that the sealing after installing.The top of mounting box 6 also sets
It is equipped with the positive stop hook 62 that electric wire can be carried out combing, to avoid electric wire problem at random during assembling, for quickly and accurately
Assembling provides convenient.
The inner side of upper shell 21 is provided with the battery compartment 213 for installing battery, and this battery compartment 213 side has supply lines
The opening 200 stretched into, battery is connected with main circuit board 4 by this electric wire, and is coated with waterproof on the opening 200 of battery compartment 213
Silica gel.The display screen 21a that can expose upper shell 21 outer surface it is provided with bottom mounting groove 211.The surface of upper shell 21 have with
The screwed hole 214 that battery compartment 213 is connected, in this screwed hole 214, dismountable type connects a battery cover 215, and in screwed hole 214
Being provided with can be with the sealing ring 216 of battery cover 215 lower limb phase close-fitting, it is simple to changes battery, and guarantees that battery compartment has preferably
Waterproof, humidity resistance.The side of upper shell 21 has the socket 21b for IC prepaid card of planting, and connects inside this socket 21b
Having IC prepaid card to read and write assembly 219, this IC prepaid card read-write assembly 219 is connected with main circuit board 4 by electric wire.
The water meter of the present embodiment uses the design of pass-through type structure, utilizes soft silicon gel to be encapsulated by wiring board encapsulating,
On wire pigtail coat water-proof silica-gel layer, and arrange on housing 2 facilitate current and steam turnover housing 2 inner chamber first
Through hole 224, need not arrange sealing ring at the bonding crack of whole housing 2, does not the most do hermetically closed, can pass through the first through hole
224 to realize steam freely the most penetrating, it is ensured that internal and external pressure balance in water meter case 2, effectively prevent during water meter uses because of interior
The plastic cement deformation that external pressure is uneven and causes, avoids air tight structure steam simultaneously and easily enters to be difficult to out, causes steam to overstock
Problem, add reliability and the service life of water meter；Further, the light transmittance of the silicon gel that the present embodiment uses exceedes
92%, the reliability of optical transmission performance and reading can be effectively improved as liquid crystal light transmission medium, the most soft organosilicon coagulates
Glue can effectively stop that wiring board is eroded by the steam in air, can effectively solve the sealing that the problems such as aging, delamination are brought
Problem, protection circuit plate (PCBA) is not affected by high temperature, high humidity environment and stress, makes water meter have the most waterproof, moistureproof
Performance.
Claims (10)
1. there is an electronic water meter for three anti-functions, including base (1), housing (2), discharge gauge assembly (3), globe valve
Assembly (5) and main circuit board (4), the both sides of described base (1) are connected to water inlet pipe (11) and outlet pipe (12), the described end
Having the inner chamber (10) for installing discharge gauge assembly (3) on seat (1), described globe valve assembly (5) is located at outlet pipe
(12), on, described housing (2) is located at base (1) top and has the installation in mating connection with the upper port of base intracavity (10)
Mouth (20), it is characterised in that: described housing (2) inner side is provided with the mounting groove (211) for installing main circuit board (4) and is used for
The installation cavity (221) of the control circuit board (31) of discharge gauge assembly (3), described mounting groove (211) and installation cavity are installed
(221) being all filled with the silicon gel (210,220) that can be covered by respective lines plate in, the electric wire in described housing (2) draws
Go out end and be coated with layer of silica gel；The first through hole (224) for steam turnover is had on described housing (2).
The electronic water meter with three anti-functions the most according to claim 1, it is characterised in that: in described mounting groove (211)
It is additionally provided with the resistance to compression layer (212) being covered in silicon gel (210) surface.
The electronic water meter with three anti-functions the most according to claim 1, it is characterised in that: described housing (2) includes
The upper shell (21) that can mutually fasten and lower house (22), described mounting groove (211) is located on upper shell (21), described peace
Behave affectedly (221) be located on lower house (22), and this installation cavity (221) is the most corresponding with the position of described installing port (20).
The electronic water meter with three anti-functions the most according to claim 3, it is characterised in that: the limit of described upper shell (21)
Edge is provided with the buckle (217) of layout downwards, corresponding, described lower house (22) has and matches with this buckle (217)
Draw-in groove (225).
The electronic water meter with three anti-functions the most according to claim 3, it is characterised in that: described upper shell (21) interior
Side is provided with the battery compartment (213) for installing battery, and described mounting groove (211) bottom is provided with can expose upper shell (21) outward
The display screen (21a) on surface.
The electronic water meter with three anti-functions the most according to claim 5, it is characterised in that: the table of described upper shell (21)
Face has the screwed hole (214) being connected with battery compartment (213), and this screwed hole (214) interior dismountable type connects a battery cover
(215), and being provided with in described screwed hole (214) can be with the sealing ring (216) of battery cover (215) lower limb phase close-fitting.
The electronic water meter with three anti-functions the most according to claim 3, it is characterised in that: described lower house is opened on (22)
Having the second through hole (222) that the valve head (51) for globe valve assembly (5) stretches in housing (2), described housing is provided with use in (2)
In the mounting box (6) of the driving motor installing globe valve assembly (5), this mounting box (6) has lower port and top has power supply
The third through-hole (61) that line passes, the medial surface of described lower house (22) is formed with the ring arranged around the second through hole (222)
Shape groove (227), the edge of described mounting box (6) lower port is connected with this cannelure (227) phase inserting, described mounting box (6) with
The joining place of cannelure (227) and third through-hole (61) are around coated with water-proof silica-gel.
The electronic water meter with three anti-functions the most according to claim 7, it is characterised in that: the top of described mounting box (6)
Portion is additionally provided with the positive stop hook (62) that electric wire can carry out combing.
9. according to the electronic water meter with three anti-functions described in any claim in claim 3～8, it is characterised in that:
Described upper shell (21) inner side is provided with first internal threaded column (218) of layout downwards, and correspondence, described lower house sets on (22)
It is equipped with the second internal threaded column (226) that can align, the lower end of this second internal threaded column (226) with the first internal threaded column (218)
Mouth exposes the bottom surface of lower house (22), and a screw sequentially passes through the second internal threaded column (226), the first internal threaded column (218) by institute
State upper shell (21) to be connected with lower house (22) locking.
10. according to the electronic water meter with three anti-functions described in any claim in claim 1～8, it is characterised in that:
The side of described housing (2) has the socket (21b) for IC prepaid card of planting, and this socket (21b) inner side is communicated with IC prepayment
Card read-write assembly (219), this IC prepaid card read-write assembly (219) is connected with described main circuit board (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620336447.0U CN205719148U (en) | 2016-04-20 | 2016-04-20 | There is the electronic water meter of three anti-functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620336447.0U CN205719148U (en) | 2016-04-20 | 2016-04-20 | There is the electronic water meter of three anti-functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205719148U true CN205719148U (en) | 2016-11-23 |
Family
ID=57297644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620336447.0U Withdrawn - After Issue CN205719148U (en) | 2016-04-20 | 2016-04-20 | There is the electronic water meter of three anti-functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205719148U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105758491A (en) * | 2016-04-20 | 2016-07-13 | 镭蒙(宁波)股份有限公司 | Electronic water meter with three-proofing function |
| CN109115295A (en) * | 2018-10-18 | 2019-01-01 | 江苏金钰铭电子有限公司 | A kind of water meter reader protective shell of Anti-dismantling |
-
2016
- 2016-04-20 CN CN201620336447.0U patent/CN205719148U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105758491A (en) * | 2016-04-20 | 2016-07-13 | 镭蒙(宁波)股份有限公司 | Electronic water meter with three-proofing function |
| CN105758491B (en) * | 2016-04-20 | 2018-11-27 | 镭蒙(宁波)股份有限公司 | Electronic water meter with three proofings function |
| CN109115295A (en) * | 2018-10-18 | 2019-01-01 | 江苏金钰铭电子有限公司 | A kind of water meter reader protective shell of Anti-dismantling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161123 Effective date of abandoning: 20181127 |