CN207937014U - Ultrasonic flowmeter and its flow sensor - Google Patents
Ultrasonic flowmeter and its flow sensor Download PDFInfo
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- CN207937014U CN207937014U CN201820269345.0U CN201820269345U CN207937014U CN 207937014 U CN207937014 U CN 207937014U CN 201820269345 U CN201820269345 U CN 201820269345U CN 207937014 U CN207937014 U CN 207937014U
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Abstract
The utility model discloses a kind of ultrasonic flowmeter and its flow sensor, ultrasonic flow sensor includes：Shell, the shell are equipped with installation cavity, and the inner wall of the installation cavity is equipped with mounting groove, and the mounting groove extends to the bottom wall of the installation cavity；First pcb board, first pcb board are set in the installation cavity；Inverting element, the inverting element are set in the installation cavity, and the inverting element is arranged with the first pcb board relative spacing and the inverting element is electrically connected with first pcb board；And temperature probe, the temperature probe is fixedly arranged in the mounting groove and the temperature probe is arranged close to the bottom wall of the installation cavity, and the temperature probe is electrically connected with first pcb board.The ultrasonic flowmeter and its flow sensor of the utility model are in assembly, using the guiding and positioning action of mounting groove, can conveniently, stablize temperature probe is installed in ultrasonic flow sensor.
Description
Technical field
The utility model is related to flowmeter technology fields, and in particular to a kind of ultrasonic flowmeter and its flow sensor.
Background technology
Ultrasonic flowmeter is measured by propagating ultrasonic wave in the fluid to flowing with the flow rate information to fluid, is passed through
Cross the flow that conversion calculates fluid later.
Ultrasonic flow sensor is as a component very crucial in ultrasonic flowmeter, since ambient temperature changes
The measurement accuracy of ultrasonic flow sensor can be impacted, traditional way is to be set to temperature probe by connecting line
In the cavity of sensor outer housing, the electricity of temperature probe and PCB (Printed Circuit Board, printed circuit board) plate is utilized
Property connection, fluid temperature signal is transmitted to pcb board, under different temperatures fluid flow carry out temperature-compensating, using this
Kind thermometric mode is not easy to temperature probe and realizes stable installation in the inside of flow sensor.
Invention content
Based on this, it is necessary to a kind of ultrasonic flowmeter and its flow sensor are provided, it can be easily by temperature probe
Stable is installed in ultrasonic flow sensor.
Its technical solution is as follows：
A kind of ultrasonic flow sensor, including：Shell, the shell are equipped with installation cavity, and the inner wall of the installation cavity is set
There are mounting groove, the mounting groove to extend to the bottom wall of the installation cavity；First pcb board, first pcb board are set to the peace
In behaveing affectedly；Inverting element, the inverting element are set in the installation cavity, the inverting element and the first pcb board phase
To interval setting and the inverting element and first pcb board electric connection；And temperature probe, the temperature probe are fixed
In in the mounting groove and the temperature probe close to the installation cavity bottom wall be arranged, the temperature probe and described first
Pcb board is electrically connected.
When the ultrasonic flow sensor assembly of above-described embodiment, inverting element is installed on to the inner wall of installation cavity so that
The edge of the opening of inverting element and mounting groove abuts against, and the first pcb board is installed on to the inner wall of installation cavity so that the first PCB
The edge of the opening of plate and mounting groove abuts against, meanwhile, so that inverting element and the first pcb board relative spacing is arranged, passes through transducing
The transmission of signal is realized in the electric connection of element and the first pcb board, and temperature probe is inserted into mounting groove, keeps temperature probe close
The bottom wall of installation cavity is arranged, and fixed temperature probe, is measured to the temperature of fluid by temperature probe, to realize thermometric
Probe can be stablized, be conveniently mounted in mounting groove, meanwhile, by the electric connection between temperature probe and the first pcb board,
The fluid temperature information that temperature probe measures is transmitted to the first pcb board and carries out respective handling, the utility model embodiment surpasses
Acoustic wave flow sensor is in assembly, using the guiding of mounting groove, positioning action, can conveniently, stablize temperature probe is pacified
Loaded in ultrasonic flow sensor.
Technical solution is illustrated further below：
Further include support element in one of the embodiments, the support element is equipped with the temperature probe, the support
Part is fixedly arranged in the mounting groove.
The support element is the second pcb board in one of the embodiments, and second pcb board is equipped with opposite first
End and second end, the first end and the bottom wall of the installation cavity abut against, and the first end is equipped with the temperature probe and institute
It states first end to be electrically connected with the temperature probe, the second end is electrically connected with first pcb board.
The temperature probe further includes contact pin in one of the embodiments, the contact pin be equipped with opposite third end and
4th end, the third end are fixedly arranged on the temperature probe, and the 4th end is fixedly arranged on first pcb board.
The 4th end is equipped with bending part in one of the embodiments, and the bending part is fixedly arranged on first pcb board
On.
Further include the heat-conducting layer being set in the mounting groove in one of the embodiments, the heat-conducting layer is used for will
The temperature probe sealing is fixedly arranged in the mounting groove.
The shell includes pedestal and the pedestal with pedestal sealing cooperation, the base in one of the embodiments,
Seat is equipped with the first cavity, and the inner wall of first cavity is equipped with the first groove, and the inner wall of first cavity is equipped with described the
One pcb board, the pedestal are equipped with the second cavity, and second cavity cooperatively forms the installation cavity, institute with first cavity
The inner wall for stating the second cavity is recessed equipped with the second groove and second groove that are connected with first groove and described first
Slot cooperatively forms the mounting groove, and the inner wall of second cavity is equipped with the inverting element.
Further include cushion pad in one of the embodiments, one end of the pedestal, which is equipped with, can extend into second sky
The boss of intracavitary, the cushion pad are set between the boss and the inverting element, one end of the cushion pad with it is described
Inverting element abuts, the other end is abutted with the boss.
Further include the embedding glue-line being set in first cavity, the embedding glue-line in one of the embodiments,
Inner wall for first pcb board sealing to be fixedly arranged on to first cavity.
A kind of ultrasonic flowmeter, including above-mentioned ultrasonic flow sensor.
The ultrasonic flowmeter of above-described embodiment, in ultrasonic flow sensor integrate temperature probe, from without
Trepanning is to install temperature probe on the tube body of ultrasonic flowmeter so that the design installation of ultrasonic flowmeter is simpler, square
Just, it is also avoided that after temperature probe is inserted into tube body and the flowing of fluid is interfered, so that measurement result is more accurate,
When carrying out the installation of the ultrasonic flowmeter, inverting element is installed on to the inner wall of installation cavity so that inverting element and mounting groove
The edge of opening abut against, the first pcb board is installed on to the inner wall of installation cavity so that the opening of the first pcb board and mounting groove
Edge abut against, meanwhile, so that inverting element and the first pcb board relative spacing is arranged, pass through inverting element and the first pcb board
It is electrically connected the transmission for realizing signal, temperature probe is inserted into mounting groove, temperature probe is made to be arranged close to the bottom wall of installation cavity,
And fixed temperature probe, the temperature of fluid is measured by temperature probe, to realize that temperature probe can be stablized, conveniently
Be installed in mounting groove, meanwhile, by the electric connection between temperature probe and the first pcb board, temperature probe is measured
Fluid temperature information is transmitted to the first pcb board and carries out respective handling, and the ultrasonic flow sensor of the utility model embodiment exists
When assembly, using the guiding of mounting groove, positioning action, the ultrasonic flow that is installed on temperature probe that can conveniently, stable passes
In sensor, to realize the assembly of ultrasonic flow sensor, during measurement, by temperature probe to the temperature of fluid into
Row measures, meanwhile, by the electric connection between temperature probe and the first pcb board, the fluid temperature (F.T.) that temperature probe is measured is believed
Breath is transmitted to the compensation that the first pcb board carries out progress fluid flow after respective handling, further improves measurement accuracy.
Description of the drawings
Fig. 1 is the structural schematic diagram of ultrasonic flow sensor one embodiment of the utility model；
Fig. 2 is the explosive view of the ultrasonic flow sensor of Fig. 1；
Fig. 3 is the structural schematic diagram of another embodiment of the ultrasonic flow sensor of the utility model；
Fig. 4 is the explosive view of the ultrasonic flow sensor of Fig. 3.
Reference sign：
10, shell, 100, mounting groove, 110, pedestal, the 111, first cavity, the 112, first groove, 113, boss, 120, bottom
Seat, the 121, second cavity, the 200, first pcb board, 300, inverting element, 400, temperature probe, 410, contact pin, the 500, the 2nd PCB
Plate, 600, heat-conducting layer, 700, cushion pad, 800, adhesive layer, 900, embedding glue-line.
Specific implementation mode
It is below in conjunction with attached drawing and specifically real to make the purpose of this utility model, technical solution and advantage be more clearly understood
Mode is applied, the utility model is described in further detail.It should be understood that the specific embodiments described herein
Only to explain the utility model, the scope of protection of the utility model is not limited.
It should be noted that when element is referred to as " being set to " another element, it can be directly on another element
Or there may also be elements placed in the middle.Can be detachable solid between them when element is referred to as " fixing " another element
It can also be non-removable fixed form to determine mode.When an element is considered as " connection " another element, it can be
It is directly connected to another element or may be simultaneously present centering elements.Term as used herein " vertically ", " level
", "left", "right" and similar statement for illustrative purposes only, be not offered as being unique embodiment.
Unless otherwise defined, all of technologies and scientific terms used here by the article is led with the technology for belonging to the utility model
The normally understood meaning of technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in constraint the utility model.Term " and or " used herein packet
Include any and all combinations of one or more relevant Listed Items.
The similar term such as " first " described in the utility model, " second ", " third " does not represent specific quantity and sequence,
It is only used for the differentiation of title.
As shown in Figures 1 to 4, a kind of ultrasonic flow sensor of the utility model one embodiment, including：Shell
10, shell 10 is equipped with installation cavity, and the inner wall of installation cavity is equipped with mounting groove 100, and mounting groove 100 extends to the bottom wall of installation cavity；The
One pcb board 200, the first pcb board 200 are set in installation cavity；Inverting element 300, inverting element 300 are set in installation cavity,
Inverting element 300 and the setting of 200 relative spacing of the first pcb board and inverting element 300 and the electric connection of the first pcb board 200；And
Temperature probe 400, temperature probe 400 is fixedly arranged in mounting groove 100 and temperature probe 400 is arranged close to the bottom wall of installation cavity, is surveyed
Temperature probe 400 and the first pcb board 200 are electrically connected.
When the ultrasonic flow sensor assembly of above-described embodiment, inverting element 300 is installed on to the inner wall of installation cavity, is made
It obtains inverting element 300 and the edge of the opening of mounting groove 100 abuts against, the first pcb board 200 is installed on to the inner wall of installation cavity,
So that the first pcb board 200 and the edge of the opening of mounting groove 100 abut against, meanwhile, make inverting element 300 and the first pcb board
200 relative spacings are arranged, and the transmission of signal are realized by the electric connection of inverting element 300 and the first pcb board 200, by thermometric
Probe 400 is inserted into mounting groove 100, and temperature probe 400 is made to be arranged close to the bottom wall of installation cavity, and fixed temperature probe 400, is led to
It crosses temperature probe 400 to measure the temperature of fluid, to realize that temperature probe 400 can be stablized, be conveniently mounted at peace
In tankage 100, meanwhile, by the electric connection between temperature probe 400 and the first pcb board 200, temperature probe 400 is measured
Fluid temperature information be transmitted to the first pcb board 200 carry out respective handling, the utility model embodiment ultrasonic flow sensing
Device is in assembly, using the guiding of mounting groove 100, positioning action, can conveniently, stablize temperature probe 400 is installed on it is super
In acoustic wave flow sensor.
It needs to illustrate, mounting groove 100 is the groove being individually opened on the inner wall of installation cavity, so that surveying
The installation of temperature probe 400 will not interfere the installation of the first pcb board 200 and inverting element 300；Temperature probe 400 can be with
Being arbitrary can be to the temperature sensor that fluid temperature (F.T.) measures, such as can be NTC (Negative Temperature
Coefficient, negative tempperature coefficient thermistor) thermistor can also be negative temperature capacitance sheet, preferably NTC temperature-sensitives are electric
The variation range of resistance at room temperature is at 100 ohm~1000000 ohm, and temperature coefficient is -2%~-6.5%, temperature measurement accuracy
1 DEG C or more is can reach, temperature measurement range is wider, can be -40 DEG C~300 DEG C, and cheap, can effectively improve this implementation
Ultrasonic flow sensor measurement accuracy, improve the operating temperature upper limit, and reduce production cost, service life is high.First
Pcb board 200 is equipped with the processing list for being converted to digital fluid signal after capable of handling collected ultrasonic signal
Member, at the same can also to temperature probe 400 acquire fluid temperature (F.T.) handle after to the fluid flow under different temperatures into
Row compensation.The electric connection of the utility model embodiment can be the connection being directly realized by by connecting line, can also be to pass through
Add sending device and electric connection that reception device is realized indirectly.Temperature probe 400 can be with close to the bottom wall setting of installation cavity
It is mutually drawing close there are gap, can also be the setting abutted against, when temperature probe 400 is connected on the bottom wall of installation cavity
When, it is more preferable to the Effect on Detecting of temperature.
As shown in Figures 1 to 4, optionally, further include support element, for support element equipped with temperature probe 400, support element is fixed
In in mounting groove 100.By the supporting role of support element, when mounted only need to be inserted into support element along mounting groove 100 can be real
The installation of existing temperature probe 400 so that installation is simpler, conveniently.
As shown in Figures 1 and 2, in one embodiment, support element is the second pcb board 500, and the second pcb board 500 is equipped with phase
To first end and second end, the bottom wall of first end and installation cavity abuts against, and first end is equipped with temperature probe 400 and first end
It is electrically connected with temperature probe 400, second end is electrically connected with first pcb board 200.By the way that the second pcb board 500 is inserted into
In mounting groove 100 so that temperature probe 400 and the bottom wall of installation cavity abut against, to realize that temperature probe 400 is stablized, conveniently
Installation and measurement to fluid temperature (F.T.), meanwhile, be not required to add longer connecting line for connecting temperature probe 400 and first
Pcb board 200 achieves that temperature between temperature probe 400 and the first pcb board 200 by the switching effect of the second pcb board 500
The transmission of variable signal, the installation space occupied using this kind of mode is small, convenient for assembly, and compact-sized.
As shown in Figures 3 and 4, in another embodiment, temperature probe 400 further includes contact pin 410, the contact pin 410
Equipped with opposite third end and the 4th end, the third end is fixedly arranged on the temperature probe 400, and the 4th end is fixedly arranged on institute
It states on the first pcb board 200.By the way that contact pin 410 is inserted into mounting groove 100 until temperature probe 400 is reached close to inverting element
300 installation site, to realize the stabilization of temperature probe 400, be conveniently mounted in mounting groove 100, meanwhile, pass through contact pin
410 realize that the signal of temperature probe 400 and the first pcb board 200 transmits, this kind of structure makes the space smaller of mounting groove 100, pacifies
Fill more convenient, structure is compacter.Contact pin 410 can be the pin that temperature probe 400 has in itself.
Further, the 4th end is equipped with bending part, and bending part is fixedly arranged on the first pcb board 200.By the 4th of contact pin 410 the
Bending is held, bending part is installed on the first pcb board 200, can be consolidated what temperature probe 400 was more stablized by contact pin 410
Set on the inner wall of mounting groove 100.The bending part of the present embodiment is fixedly arranged on by welding on the first pcb board 200, this is fixed
Mode can ensure the reliability of work, lengthen service life.
As shown in Figures 1 and 3, based on any of the above embodiments, further include the heat conduction being set in mounting groove 100
Layer 600, heat-conducting layer 600 are used to the sealing of temperature probe 400 being fixedly arranged in mounting groove 100.It can not only be incited somebody to action by heat-conducting layer 600
The inner wall for being fixed on mounting groove 100 that support element and temperature probe 400 are stablized, sealed, meanwhile, it is capable to by the temperature change of fluid
Information faster, is preferably transferred to temperature probe 400, improves the sensitivity of temperature probe 400, so that measurement result is more
Add accurately, simultaneously as mounting groove 100 is to be opened in independent installation space on installation cavity wall so that heat-conducting layer 600 will not
It overflows, the normal work to inverting element 300 is avoided to interfere.
As shown in Figures 1 to 4, based on any of the above embodiments, shell 10 include pedestal 110 and with pedestal 110
The pedestal 120 of cooperation is sealed, pedestal 110 is equipped with the first cavity 111, and the inner wall of the first cavity 111 is equipped with the first groove 112,
The inner wall of first cavity 111 is equipped with the first pcb board 200, and pedestal 120 is equipped with the second cavity 121, and the second cavity 121 and first is empty
Chamber 111 cooperatively forms installation cavity, and the inner wall of the second cavity 121 is equipped with the second groove and second being connected with the first groove 112
Groove and the first groove 112 cooperatively form mounting groove 100, and the inner wall of the second cavity 121 is equipped with inverting element 300.Shell 10 by
Pedestal 110 and pedestal 120 form, and the first pcb board 200 is installed on to the inner wall of the first cavity 111 of pedestal 110, by transducing member
Part 300 is installed on the inner wall of the second cavity 121 of pedestal 120 so that the first pcb board 200, inverting element 300 installation more
Simply, conveniently；It is combined into the mounting groove 100 installed for temperature probe 400 by the first groove 112 and matching for the second groove, only
Temperature probe 400 need to be inserted into along mounting groove 100 so that temperature probe 400, which reaches, presets temperature measurement location so that thermometric is visited
First 400 installation will not interfere the installation of the first pcb board 200 and inverting element 300, while but also entire flow passes
The structure of sensor is compacter.In order to improve the accuracy of 400 thermometric of temperature probe, pedestal 120 can be used metal material
With increased thermal conductivity, while pedestal 120 can also be set to thin as far as possible to further enhance heat-conducting effect；By pedestal
110 use plastic material with cost-effective.
As shown in Figures 1 to 4, further, further include cushion pad 700, one end of pedestal 110, which is equipped with, can extend into second
Boss 113 in cavity 121, cushion pad 700 are set between boss 113 and inverting element 300, one end of cushion pad 700 with
Inverting element 300 abuts, the other end is abutted with boss 113.When 120 surface of pedestal is impacted by external fluid, cushion pad 700
Setting can play the role of buffering, prevent inverting element 300 damage.Cushion pad 700 can select silicagel pad, rubber pad etc.
Element with shock absorbing effect.
As shown in Figures 2 and 4, further, further include adhesive layer 800, adhesive layer 800 is set to pedestal 120 and transducing
Between element 300, adhesive layer 800 is used to inverting element 300 being fixedly arranged on the inner wall of the second cavity 121.It will by adhesive layer 800
The inner wall for being fixed on the second cavity 121 that inverting element 300 is stablized, prevents inverting element 300 from shifting during the work time.
Adhesive layer 800 can select double faced adhesive tape, can inverting element 300 conveniently, be simply fixed on the second cavity by double faced adhesive tape
On 121 bottom wall.
As shown in Figures 1 and 3, based on any of the above embodiments, further include the filling being set in the first cavity 111
Adhesive layer 900, embedding glue-line 900 are used to the first pcb board 200 sealing being fixedly arranged on the inner wall of the first cavity 111.Pass through casting glue
First pcb board 200 is potted on the inner wall of the first cavity 111 by layer 900, it is ensured that the intensity and air-tightness of pedestal 110.
One embodiment of the utility model also relates to a kind of ultrasonic flowmeter, including any of the above-described embodiment is super
Acoustic wave flow sensor.
The ultrasonic flowmeter of above-described embodiment, in ultrasonic flow sensor integrate temperature probe 400, from without
Trepanning is to install temperature probe on the tube body of ultrasonic flowmeter so that the design of ultrasonic flowmeter installation is simpler,
It is convenient, it is also avoided that after temperature probe is inserted into tube body and the flowing of fluid is interfered, so that measurement result is more accurate,
When carrying out the installation of the ultrasonic flowmeter, inverting element 300 is installed on to the inner wall of installation cavity so that inverting element 300
It is abutted against with the edge of the opening of mounting groove 100, the first pcb board 200 is installed on to the inner wall of installation cavity so that the first pcb board
200 abut against with the edge of the opening of mounting groove 100, meanwhile, so that inverting element 300 is set with 200 relative spacing of the first pcb board
It sets, the transmission of signal is realized by the electric connection of inverting element 300 and the first pcb board 200, temperature probe 400 is inserted into and is pacified
In tankage 100, temperature probe 400 is made to be arranged close to the bottom wall of installation cavity, and fixed temperature probe 400, passes through temperature probe 400
The temperature of fluid is measured, to realize that temperature probe 400 can be stablized, be conveniently mounted in mounting groove 100, together
When, by the electric connection between temperature probe 400 and the first pcb board 200, the fluid temperature (F.T.) that temperature probe 400 is measured is believed
Breath is transmitted to the first pcb board 200 and carries out respective handling, the ultrasonic flow sensor of the utility model embodiment in assembly,
Using the guiding of mounting groove 100, positioning action, the ultrasonic flow that is installed on temperature probe 400 that can conveniently, stable senses
In device, to realize the assembly of ultrasonic flow sensor, during measurement, by temperature probe 400 to the temperature of fluid
It measures, meanwhile, by the electric connection between temperature probe 400 and the first pcb board 200, temperature probe 400 is measured
Fluid temperature information is transmitted to the compensation that the first pcb board 200 carries out progress fluid flow after respective handling, further improves
Measurement accuracy.
Each technical characteristic of embodiment described above can be combined arbitrarily, to keep description succinct, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, it is all considered to be the range of this specification record.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But therefore it can not be interpreted as the constraint to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (10)
1. a kind of ultrasonic flow sensor, which is characterized in that including：
Shell, the shell are equipped with installation cavity, and the inner wall of the installation cavity is equipped with mounting groove, and the mounting groove extends to the peace
The bottom wall behaveing affectedly；
First pcb board, first pcb board are set in the installation cavity；
Inverting element, the inverting element are set in the installation cavity, between the inverting element is opposite with first pcb board
Every setting and the inverting element and first pcb board electric connection；And
Temperature probe, the temperature probe is fixedly arranged in the mounting groove and the temperature probe is close to the bottom of the installation cavity
Wall is arranged, and the temperature probe is electrically connected with first pcb board.
2. ultrasonic flow sensor according to claim 1, which is characterized in that further include support element, the support element
It is equipped with the temperature probe, the support element is fixedly arranged in the mounting groove.
3. ultrasonic flow sensor according to claim 2, which is characterized in that the support element is the second pcb board, institute
It states the second pcb board and is equipped with opposite first end and second end, the first end and the bottom wall of the installation cavity abut against, and described the
One end is equipped with the temperature probe and the first end is electrically connected with the temperature probe, the second end and described first
Pcb board is electrically connected.
4. ultrasonic flow sensor according to claim 1, which is characterized in that the temperature probe further includes contact pin,
The contact pin is equipped with opposite third end and the 4th end, and the third end is fixedly arranged on the temperature probe, and the 4th end is solid
On first pcb board.
5. ultrasonic flow sensor according to claim 4, which is characterized in that the 4th end is equipped with bending part, institute
Bending part is stated to be fixedly arranged on first pcb board.
6. ultrasonic flow sensor according to claim 1, which is characterized in that further include being set in the mounting groove
Heat-conducting layer, the heat-conducting layer be used for by the temperature probe sealing be fixedly arranged in the mounting groove.
7. ultrasonic flow sensor according to any one of claims 1 to 6, which is characterized in that the shell includes base
Seat and pedestal with pedestal sealing cooperation, the pedestal are equipped with the first cavity, and the inner wall of first cavity is equipped with the
The inner wall of one groove, first cavity is equipped with first pcb board, and the pedestal is equipped with the second cavity, second cavity
The installation cavity is cooperatively formed with first cavity, and the inner wall of second cavity is equipped with to be connected with first groove
Second groove and second groove cooperatively form the mounting groove with first groove, and the inner wall of second cavity is set
There is the inverting element.
8. ultrasonic flow sensor according to claim 7, which is characterized in that further include cushion pad, the pedestal
One end, which is equipped with, can extend into boss in second cavity, the cushion pad be set to the boss and the inverting element it
Between, one end of the cushion pad is abutted with the inverting element, the other end is abutted with the boss.
9. ultrasonic flow sensor according to claim 7, which is characterized in that further include being set to first cavity
Interior embedding glue-line, the embedding glue-line are used to first pcb board sealing being fixedly arranged on the inner wall of first cavity.
10. a kind of ultrasonic flowmeter, which is characterized in that sensed including claim 1 to 9 any one of them ultrasonic flow
Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820269345.0U CN207937014U (en) | 2018-02-24 | 2018-02-24 | Ultrasonic flowmeter and its flow sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820269345.0U CN207937014U (en) | 2018-02-24 | 2018-02-24 | Ultrasonic flowmeter and its flow sensor |
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| Publication Number | Publication Date |
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| CN207937014U true CN207937014U (en) | 2018-10-02 |
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ID=63652965
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820269345.0U Active CN207937014U (en) | 2018-02-24 | 2018-02-24 | Ultrasonic flowmeter and its flow sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113390484A (en) * | 2021-05-31 | 2021-09-14 | 广东奥迪威传感科技股份有限公司 | Ultrasonic flow transducer and electrical property switching mechanism |
-
2018
- 2018-02-24 CN CN201820269345.0U patent/CN207937014U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113390484A (en) * | 2021-05-31 | 2021-09-14 | 广东奥迪威传感科技股份有限公司 | Ultrasonic flow transducer and electrical property switching mechanism |
| CN113390484B (en) * | 2021-05-31 | 2024-05-17 | 广东奥迪威传感科技股份有限公司 | Ultrasonic flow transducer and electrical switching mechanism |
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