CN207683143U - Ink-feeding device and ink-jet printer - Google Patents
Ink-feeding device and ink-jet printer Download PDFInfo
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- CN207683143U CN207683143U CN201721752526.0U CN201721752526U CN207683143U CN 207683143 U CN207683143 U CN 207683143U CN 201721752526 U CN201721752526 U CN 201721752526U CN 207683143 U CN207683143 U CN 207683143U
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- ink
- print cartridge
- feeding device
- strain component
- supply port
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Abstract
This application involves inkjet printing technology field more particularly to a kind of ink-feeding devices and ink-jet printer.Ink-feeding device provided herein includes print cartridge, maintaining part, test section and processing module.The print cartridge is equipped with ink outlet port；The maintaining part is equipped with ink supply port, and the ink supply port is communicated with the ink outlet port, and the print cartridge is installed on the maintaining part；The test section is set to the maintaining part, and the test section includes strain component, and the strain component is set to the peripheral edge edge of the ink supply port of the maintaining part；The processing module is electrically connected with the strain component, to obtain the deformation parameter of the strain component.Ink-jet printer provided herein includes the ink-feeding device, solving the problems, such as ink-jet printer cannot detect whether print cartridge is installed in place, improve the print quality and printing success rate of ink-jet printer, the case where preventing ink from leaking out pollution printer, occurs, and extends the service life of ink-jet printer.
Description
Technical field
This application involves inkjet printing technology field more particularly to a kind of ink-feeding devices and ink-jet printer.
Background technology
The ink-feeding device of ink-jet printer includes print cartridge and the holding section for clamping print cartridge, currently, inkjet printing
The print cartridge of machine mostly uses IC chip print cartridge, and IC chip is arranged on print cartridge, and the effect of IC chip has very much, such as it can be recorded
The information of ink surplus, while it can also detect whether print cartridge is installed, specifically, electrode is provided in IC chip, if should
Electrode is connected to the electrode on holding section, and ink-jet printer will obtain information by IC chip, and output is similar, and " print cartridge has been pacified
The information of dress ", to carry out further work.
However, IC chip is merely able to whether detection print cartridge is installed, it can not detect whether print cartridge is installed in place.Namely
Say, ink outlet port and the holding section of print cartridge receive ink and for print job supply ink ink supply port be not fully connected, but
It is in the case that the electrode of IC chip has been connected to the electrode on holding section, IC chip can equally export similar " print cartridge has been installed "
Information, still, in that case it is possible to cause the ink in print cartridge that cannot enter or cannot be completely into holding section
In, to cause the ink feed deficiency in print job, occur even without the case where ink feed, and can also make ink
It leaks out, to pollute printer, if in addition, the ink outlet port of print cartridge and the ink supply port of holding section are not fully connected, then the two
Between just will produce gap, will admit air into, which can even invade into the ink flow path of print head, can lead in this way
Print quality is caused to decline, for example, the product that there are problems that " breaking " can be printed.
Utility model content
This application provides a kind of ink-feeding device and ink-jet printers, and print cartridge cannot be detected to solve ink-jet printer
The problem of whether being installed in place.
The first aspect of the application provides a kind of ink-feeding device, including：
Print cartridge, the print cartridge are equipped with ink outlet port；
Maintaining part, the maintaining part is equipped with ink supply port, and the ink supply port is communicated with the ink outlet port, the print cartridge installation
In the maintaining part；
Test section, the test section are set to the maintaining part, and the test section includes strain component, the strain component
It is set to the peripheral edge edge of the ink supply port of the maintaining part, the strain component can deform upon；
Processing module, the processing module are electrically connected with the strain component, to obtain the change parameter of the strain component
Number.
Further, the strain component is resistance-strain component.
Further, the ink-feeding device further includes amplification module, the amplification module and processing module electricity
Connection, to amplify the deformation parameter for the strain component that the processing module is got, to form amplifying parameters.
Further, the ink-feeding device further includes judgment module, the judgment module and amplification module electricity
Connection, the judgment module obtains the amplifying parameters, and the amplifying parameters and the first preset value are compared, with output
First testing result.
Further, the test section further includes compensating element, and the compensating element, is electrically connected with the strain component.
Further, the test section includes multiple strain components, and multiple strain components are along the ink supply port
Peripheral edge along setting.
Further, the ink-feeding device further includes sealing element, week of the sealing ring around the ink supply port
It is arranged to edge, the strain component is set to the lower section of the sealing element.
Further, on the axis direction of the ink supply port, the throwing of the projection and the ink outlet port of the ink supply port
Shadow is overlapped or the ink supply port is projected within the projection of the ink outlet port.
The second aspect of the application provides a kind of ink-jet printer, including any of the above-described ink-feeding device.
Further, the ink-feeding device further includes judgment module, the judgment module and processing module electricity
Connection, the judgment module obtain the deformation parameter that the processing module is got, and by the deformation parameter and second
Preset value is compared, to export the first testing result；
The ink-jet printer further includes comprehensive detection portion and IC chip, and the IC chip is set to the print cartridge, described
Comprehensive detection portion is electrically connected with the IC chip and the judgment module, and the comprehensive detection portion is according to the identification of the IC chip
As a result with first testing result, the second testing result is exported.
Technical solution provided by the present application can reach following advantageous effect：
Compared with prior art, when print cartridge is mounted on maintaining part and is abutted against with strain component, that is, print cartridge installation
When in place, mechanical deformation will occur for strain component, and form deformation parameter, and processing module is electrically connected with strain component, to obtain
The deformation parameter is taken, staff knows the information of similar " print cartridge has been installed in place " according to the deformation parameter, next to carry out
Walk print job；If on the contrary, print cartridge not with strain component abut against, that is, print cartridge installation it is not in place when, strain component base
Originally mechanical deformation will not occur, staff knows that print cartridge is not installed in place accordingly.Providing ink dress provided herein
It sets and ink-jet printer solves the problems, such as that ink-jet printer cannot detect whether print cartridge is installed in place, and then improve ink-jet and beat
The print quality of print machine improves the printing success rate of ink-jet printer, also prevents polluting printer since ink leaks out
The case where occur, extend the service life of ink-jet printer.
It should be understood that above general description and following detailed description is merely exemplary, this can not be limited
Application.
Description of the drawings
The structural schematic diagram for the ink-jet printer that Fig. 1 is provided by the embodiment of the present application；
The part-structure schematic diagram for the ink-feeding device that Fig. 2 is provided by the embodiment of the present application；
The part-structure cut away view for the ink-feeding device that Fig. 3 is provided by the embodiment of the present application；
The structural schematic diagram of sealing element in the ink-feeding device that Fig. 4 is provided by the embodiment of the present application；
The structural schematic diagram of component is strained in the ink-feeding device that Fig. 5 is provided by the embodiment of the present application；
The principle flow chart for the ink-jet printer that Fig. 6 is provided by the embodiment of the present application；
The work flow diagram in the comprehensive detection portion for the ink-jet printer that Fig. 7 is provided by the embodiment of the present application.
Reference numeral：
1- ink-jet printers；
10- print cartridges；
11- ink outlet ports；
20- maintaining parts；
21- ink supply ports；
30- strains component；
40- sealing elements；
50- prints object.
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the application
Example, and the principle together with specification for explaining the application.
Specific implementation mode
It is described in further detail below by specific embodiment and in conjunction with attached drawing to the application.
As shown in Figures 1 to 4, the embodiment of the present application provides a kind of ink-feeding device and ink-jet printer 1, the ink-jet
Printer 1 includes the ink-feeding device, which is mainly that the print job of the ink-jet printer 1 provides ink
Water, the ink-feeding device include print cartridge 10, maintaining part 20, test section and processing module.Print cartridge 10 is for loading ink, ink
Box 10 is equipped with ink outlet port 11, and maintaining part 20 is equipped with ink supply port 21, and print cartridge 10 is installed on maintaining part 20, makes the ink outlet port 11 and the confession
Black mouth 21 communicates, and so that the ink in print cartridge 10 is flowed into maintaining part 20 by ink outlet port 11 and ink supply port 21, then pass through this
Ink is sprayed onto on printing object 50 by maintaining part 20, is carried to reach the print job that ink-feeding device is ink-jet printer 1
For the purpose of ink.
Aforementioned test section can be set to maintaining part 20, and test section includes strain component 30, which can lead to
The peripheral edge edge that the modes such as bonding, clamping are set to the ink supply port 21 of maintaining part 20 is crossed, which is under pressure and can send out
Raw mechanical deformation, and it can be detected simultaneously by deformation parameter, which can be specifically resistance-strain component, the resistance
It may include elastic sensing element and strain ga(u)ge to strain component, and elastic sensing element can be by elastic alloy, quartz, ceramics
It is made with any one in the materials such as semiconductor silicon, above-mentioned material has that elasticity is high, intensity is high, coefficient of thermal expansion is small, antioxygen
Change, high temperature resistant, it is corrosion-resistant the advantages that, strain ga(u)ge (also known as resistance strain gage) is than relatively thin, usually by two layers of heat insulating lamella
And the grating structure (or relatively thin metal foil) being coiled by thinner wire being clipped in two layers of heat insulating lamella is made, it should
Strain ga(u)ge is attached on the elastic sensing element, and strain ga(u)ge has strain effect, strain ga(u)ge can will be elastic
The mechanical deformation that sensing element occurs is converted to the variation of resistance value, to obtain deformation parameter；Processing module and the strain group
Part 30 is electrically connected, and to obtain deformation parameter, the deformation parameter of the acquisition can be resistance value, can also be foregoing resistivity values in electricity
Corresponding voltage value or current value etc. in road.
Compared with prior art, when print cartridge 10 is mounted on maintaining part 20 and is abutted against with strain component 30, that is, ink
When box 10 is installed in place, strain component 30 will be under pressure, and mechanical deformation occurs, and forms deformation parameter, processing module with
It strains component 30 to be electrically connected, to obtain the deformation parameter, staff is known according to the deformation parameter similar to " print cartridge has been installed to
The information of position ", to carry out next step print job；On the contrary, if print cartridge 10 is not abutted against with strain component 30, that is, print cartridge
When 10 installations are not in place, mechanical deformation will not occur substantially for strain component 30, and staff can know that print cartridge 10 does not have accordingly
It is installed in place.Ink-feeding device and ink-jet printer 1 provided herein, which solves ink-jet printer 1, cannot detect print cartridge
10 the problem of whether being installed in place, and then the print quality of ink-jet printer 1 is improved, improve the printing of ink-jet printer 1
Success rate, also prevent due to ink leaks out and the case where polluting printer, occurs, extend the service life of ink-jet printer 1.
It should be noted that the print cartridge 10 can be one, or multiple, a print cartridge 10 can be set there are one going out
Black mouth 11 can also be equipped with multiple ink outlet ports 11, if being equipped with multiple ink outlet ports 11 on the same print cartridge 10, which can be same
When use multiple ink outlet ports 11, can also select one use, the ink outlet port 11 being not used will be in closed state, such as with
Lid covers tightly, with ink leakage proof；Meanwhile the quantity of the ink supply port 21 of maintaining part 20 can be according to the quantity of print cartridge 10 or print cartridge 10
The quantity of ink outlet port 11 determines, at least to ensure the quantity of the ink supply port 21 and be installed on the quantity of the print cartridge 10 of maintaining part 20
It is equal, to ensure that the ink being installed in each print cartridge 10 of maintaining part 20 can be flowed by the ink supply port 21 of the maintaining part 20
Go out, to provide ink；It is preferred that being installed on each ink outlet port 11 of the print cartridge 10 of maintaining part 20 and each ink supply port 21 can be one by one
It is correspondingly arranged, such print cartridge 10 can select the ink supply simultaneously of multiple ink outlet ports 11, can accelerate the speed of ink supply in this way, for printing
Work provides more sufficient quantity of ink, may further ensure that print quality, improves printing effect.
It is smaller due to there is the mechanical deformation that strain component 30 occurs, the resistance value changed therewith also just smaller situation,
To prevent from obtaining less than mistake since the sensitivity of processing module or other modules (such as display module) for reading data is relatively low
Small deformation parameter causes ink-jet printer 1 that cannot correctly detect print cartridge 10 to pass to the information of staff's mistake
The case where installation results, occurs, which can also include amplification module, which may include amplification electricity
Road can have amplifier in the amplifying circuit, and the core component of amplifier can be triode, field-effect tube etc., amplifier
Faint signal can be amplified by the amplifying circuit, which can directly be electrically connected with aforementioned strain component 30,
It can also be electrically connected with aforementioned processing module, to amplify Aforesaid deformation parameter, form amplifying parameters.Processing module or other readings
The module of access evidence can get amplified deformation parameter easily, without requiring processing module or other to read data
Module has higher sensitivity, can reduce cost, improves accuracy rate, improves working efficiency.
A kind of preferred embodiment is, which can also include judgment module, which can be with
Aforementioned processing module is electrically connected, and can also be electrically connected with aforementioned amplification module, and it is default which can preset first
Value or the second preset value, if what the judgment module received is amplifying parameters, then just being compared with the first preset value, if sentencing
What disconnected module received is not by the deformation parameter of amplification, then just being compared with the second preset value, to export first
Testing result；Aforementioned first preset value is strain 30 reset condition of component (the not state of deformation) with aforementioned second preset value
Under corresponding parameter value, the two is that strain component 30 is put under reset condition by amplification module difference lies in, the first preset value
Parameter value after big, the second preset value are the parameter values for straining component 30 and not amplifying by amplification module under reset condition；
The two values above-mentioned compared are after comparison, if the two numerical value is equal, can export similar to " print cartridge is not pacified
Be attached to position " the first testing result can export first detection of similar " print cartridge has been installed in place " if the two numerical value is unequal
As a result, staff can decide whether to continue print job according to first testing result, it can also be in advance to ink-jet
Printer 1 is set, and ink-jet printer 1 is enable to carry out corresponding next step printing work automatically according to the first testing result
Make, such print job can realize whole-course automation, improve working efficiency.Above-mentioned judgment module can be automatically according to change
Shape parameter obtains accurate testing result, can exclude the influence of many human factors in this way, can further increase detection
As a result accuracy can also improve detection speed, and reduce the workload of staff, and then improve working efficiency.
Further embodiment is that test section can also include compensating element, and compensating element, can be with 30 electricity of strain component
Connection, the effect of the compensating element, are to reduce the influences of the factors to obtained deformation parameter such as the temperature even offset in environment.
The compensating element, may comprise compensating for resistance, can specifically be realized using the principle of Wheatstone bridge, which can be with
It is placed on maintaining part 20, which can be compensated voltage or compensation electric current, compensating element, and strain component 30 after being powered
After electric connection, the offset voltage either compensate electric current can to strain component 30 deformation parameter (voltage value or current value) into
Row compensation, to balance out influence of the temperature to deformation parameter as possible, after being compensated the influence of temperature change generation
More accurate deformation parameter.Contribute to further increase the accuracy of the testing result of the ink-feeding device in this way.
In addition, aforementioned test section may include a strain component 30, can also include multiple strain components 30.Work as detection
When portion includes a strain component 30, it is a kind of it may is that, certain on the peripheral edge edge of ink supply port 21 is arranged in strain component 30
One position, but be arranged without surrounding ink supply port 21, the strain component 30 equally can be with stress generation mechanically deform in this way, can be with
Material is saved, cost-effective, another situation is, as shown in figure 4, the strain component 30 can be previously according to the confession of maintaining part 20
The form and dimension of black mouth 21 designs, and integrally formed structure is made, is easily installed in this way, can also surround ink supply port 21 and set
It sets, so that 30 stress of strain component is deformed upon to further ensure that print cartridge 10 is installed in place, further increase the standard of testing result
Exactness；When test section includes multiple strain components 30, each shape for straining component 30 can be designed to the shape of rule (such as
Rectangle), multiple strain component 30 can along ink supply port 21 peripheral edge along setting, specifically can be opposite in ink supply port 21
Two strain components 30 are arranged in both sides, and can also have spacing along the circumferential direction of ink supply port 21 sets gradually multiple strain components 30.
In this way, the quantity of strain component 30 and the selection of installation position can be more flexible, each moulding for straining component 30 is simpler, more
It is easily installed, be also more convenient for unified production and purchase can reduce fund cost, improve the cost performance of the ink-feeding device.
Another preferred embodiment is that as shown in Figure 2 and Figure 5, which can also include sealing element 40,
The sealing element 40 can surround the peripheral edge of ink supply port 21 along setting, and strain component 30 can be set under the sealing element 40
Side, the sealing element 40 can be specifically the gaskets to seal, the gasket can be asbestos pad, rubber pad, silicagel pad,
Any one in polytetrafluoroethylene (PTFE) cylinder-packing rubber pad.Sealing element 40 can effectively prevent ink leak, prevent inkiness even rotten
The warehouse for losing ink-jet printer 1 prevents the component in damage ink-jet printer 1, prevents the printing work for influencing ink-jet printer 1
Make, extends the service life of ink-jet printer 1.
In addition, being supplied for print job to ensure that ink can more smoothly pass sequentially through ink outlet port 11 and ink supply port 21
Ink, and reduce the possibility of ink leak, on the axis direction of ink supply port 21, the projection of the projection and ink outlet port 11 of ink supply port 21
It can be overlapped or ink supply port 21 is projected within the projection of ink outlet port 11.In this way, after print cartridge 10 is installed on maintaining part 20,
Ink outlet port 11 can be fastened on ink supply port 21 completely, and the circulation of such ink can be more smooth, it is possibility to have effect ground reduces leakage
The possibility of ink.
By foregoing description, a kind of basic functional principle flow of the detection mode is as shown in Figure 6；Ink-jet printer 1 can
To set the first preset value in judgment module, maintaining part 20 can be equipped with the screens for blocking print cartridge 10, install print cartridge 10
When, print cartridge 10 can be such that print cartridge 10 is abutted against with maintaining part 20 by the screens, make the ink outlet port 11 and maintaining part 20 of print cartridge 10
Ink supply port 21 it is opposite, to make print cartridge 10 generate the effect of power to strain component 30 so that strain component 30 deform upon and
Cause its resistance value to change, the electric signal for accessing circuit therein is also just caused since the variation of resistance value is corresponding
Change, which can be current signal, can also be voltage signal, due to electric signal at this time variation numerical value compared with
It is small, the electric signal can be amplified by amplification module；Again by the electric signal output of the amplification to judgment module, and with
One preset value is compared, if the numerical value of electric signal output as the first preset value, illustrates that print cartridge 10 is installed to not yet
Position, needs to reinstall print cartridge 10；If the numerical value and the first preset value of output are different, illustrate that print cartridge 10 has been mounted to
Position.
Above-mentioned detection mode can also be used in combination with other detection modes of ink-jet printer 1, as shown in Figure 7.Ink-jet
Printer 1 can also include comprehensive detection portion and IC chip, which can be set to print cartridge 10, and IC chip has a variety of work(
Can, such as identify function and the function etc. of recording used ink amount in print cartridge 10 that whether print cartridge 10 is installed, the comprehensive detection
Portion can be electrically connected with IC chip and judgment module, receive the recognition result of IC chip and the first detection knot of judgment module
Fruit is cooked comprehensive judgement to the installation situation of print cartridge 10 according to both of the aforesaid result, and exports the second testing result.This second
Testing result specifically divides several situations, is respectively：The first situation, when IC chip identification print cartridge 10 is installed successfully, first detects
As a result and when " print cartridge has been installed in place ", the second testing result can export the letter of similar " print cartridge has installed identification in place "
Breath；The second situation, when IC chip identification print cartridge 10 is installed successfully, but the first testing result is " print cartridge is not installed in place "
When, the second testing result can export the information of similar " print cartridge is not installed in place, and please be reinstalled "；The third situation, when
IC chip identifies 10 install failure of print cartridge, and when the first testing result is " print cartridge is not installed in place ", the second testing result can be with
The information of output similar " print cartridge None- identified is installed, and please be reinstalled "；4th kind of situation, when IC chip identification print cartridge 10 is installed
Failure, when the first testing result is " print cartridge has been installed in place ", the second testing result can export it is similar " print cartridge None- identified,
Please adjust installation " information.Comprehensive detection portion can detect the identification situation of IC chip simultaneously and whether print cartridge 10 is installed to
The case where position, can further increase the accuracy that ink-jet printer 1 detects the testing result whether print cartridge 10 is installed, Yi Jijin
The detection function of the detecting system of one-step optimization ink-jet printer 1, print cartridge 10 cannot be detected by preferably solving ink-jet printer 1
The problem of whether being installed in place.
The foregoing is merely the preferred embodiments of the application, are not intended to limit this application, for the skill of this field
For art personnel, the application can have various modifications and variations.Within the spirit and principles of this application, any made by repair
Change, equivalent replacement, improvement etc., should be included within the protection domain of the application.
Claims (10)
1. a kind of ink-feeding device, which is characterized in that including：
Print cartridge, the print cartridge are equipped with ink outlet port；
Maintaining part, the maintaining part is equipped with ink supply port, and the ink supply port can be communicated with the ink outlet port, and the print cartridge is installed on
The maintaining part；
Test section, the test section are set to the maintaining part, and the test section includes strain component, the strain component setting
In the peripheral edge edge of the ink supply port of the maintaining part, the strain component can deform upon；
Processing module, the processing module are electrically connected with the strain component, to obtain the deformation parameter of the strain component.
2. ink-feeding device according to claim 1, which is characterized in that
The strain component is resistance-strain component.
3. ink-feeding device according to claim 1, which is characterized in that further include amplification module, the amplification module
It is electrically connected with the processing module, to amplify the deformation parameter for the strain component that the processing module is got, to be formed
Amplifying parameters.
4. ink-feeding device according to claim 3, which is characterized in that further include judgment module, the judgment module
It is electrically connected with the amplification module, the judgment module obtains the amplifying parameters, and the amplifying parameters and first are preset
Value is compared, to export the first testing result.
5. ink-feeding device according to claim 1, which is characterized in that
The test section further includes compensating element, and the compensating element, is electrically connected with the strain component.
6. ink-feeding device according to claim 1, which is characterized in that
The test section includes multiple strain components, and multiple strain components are set along the peripheral edge edge of the ink supply port
It sets.
7. ink-feeding device according to claim 1, which is characterized in that further include sealing element, the sealing ring around
The peripheral edge of the ink supply port is set to the lower section of the sealing element along setting, the strain component.
8. ink-feeding device according to claim 1, which is characterized in that
On the axis direction of the ink supply port, the projection of the ink supply port is Chong Die or described with the projection of the ink outlet port
Ink supply port is projected within the projection of the ink outlet port.
9. a kind of ink-jet printer, which is characterized in that including the ink-feeding device described in any one of claim 1-8.
10. ink-jet printer according to claim 9, which is characterized in that the ink-feeding device further includes judging mould
Block, the judgment module are electrically connected with the processing module, the judgment module obtain the processing module get it is described
Deformation parameter, and the deformation parameter and the second preset value are compared, to export the first testing result；
The ink-jet printer further includes comprehensive detection portion and IC chip, and the IC chip is set to the print cartridge, the synthesis
Test section is electrically connected with the IC chip and the judgment module, and the comprehensive detection portion is according to the recognition result of the IC chip
With first testing result, the second testing result is exported.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721752526.0U CN207683143U (en) | 2017-12-13 | 2017-12-13 | Ink-feeding device and ink-jet printer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721752526.0U CN207683143U (en) | 2017-12-13 | 2017-12-13 | Ink-feeding device and ink-jet printer |
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| CN207683143U true CN207683143U (en) | 2018-08-03 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113505823A (en) * | 2021-07-02 | 2021-10-15 | 中国联合网络通信集团有限公司 | Supply chain security analysis method and computer-readable storage medium |
| CN115230324A (en) * | 2022-06-23 | 2022-10-25 | 山东中康国创先进印染技术研究院有限公司 | Piezoelectric type ink jet nozzle and ink jet printer |
| US20230077341A1 (en) * | 2021-09-13 | 2023-03-16 | Funai Electric Co., Ltd. | Fluid Sense Circuit with Variable Sensitivity |
-
2017
- 2017-12-13 CN CN201721752526.0U patent/CN207683143U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113505823A (en) * | 2021-07-02 | 2021-10-15 | 中国联合网络通信集团有限公司 | Supply chain security analysis method and computer-readable storage medium |
| CN113505823B (en) * | 2021-07-02 | 2023-06-23 | 中国联合网络通信集团有限公司 | Supply chain security analysis method and computer readable storage medium |
| US20230077341A1 (en) * | 2021-09-13 | 2023-03-16 | Funai Electric Co., Ltd. | Fluid Sense Circuit with Variable Sensitivity |
| US11686696B2 (en) * | 2021-09-13 | 2023-06-27 | Funai Electric Co., Ltd. | Fluid sense circuit with variable sensitivity |
| CN115230324A (en) * | 2022-06-23 | 2022-10-25 | 山东中康国创先进印染技术研究院有限公司 | Piezoelectric type ink jet nozzle and ink jet printer |
| CN115230324B (en) * | 2022-06-23 | 2024-04-09 | 山东中康国创先进印染技术研究院有限公司 | Piezoelectric type ink jet nozzle and ink jet printer |
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