CN103968992B - Pressure sensor device and the pressure cooker with the device - Google Patents
Pressure sensor device and the pressure cooker with the device Download PDFInfo
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- CN103968992B CN103968992B CN201310028596.1A CN201310028596A CN103968992B CN 103968992 B CN103968992 B CN 103968992B CN 201310028596 A CN201310028596 A CN 201310028596A CN 103968992 B CN103968992 B CN 103968992B
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Abstract
Of the invention to disclose a kind of pressure sensor device and the pressure cooker with the pressure sensor device in fact, the pressure sensor device includes：Housing, circuit board, pressure sensor and separator.There is passage, the passage has first end and the second end, and the first end of the passage has opening, and the passage has the air admission hole at the second end of the neighbouring passage in the housing；The circuit board is located in the passage；The pressure sensor is located in the passage and positioned between the circuit board and the air admission hole；Separator is located in the passage to prevent the gas entered in the passage from the air admission hole from directly contacting the pressure sensor.Pressure sensor device according to embodiments of the present invention, it is wide using scope available for hot and humid measurand is detected.
Description
Technical field
The present invention relates to field of domestic appliances manufacture technology, more particularly to a kind of pressure sensor device and with pressure sensing
The pressure cooker of device.
Background technology
Pressure sensor is widely used on various industrial equipments, and the pressure sensor on industrial equipment has larger
Range, in addition, pressure sensor is also applied to the consumer electronics industry, such as GPS device, submersion watch, automobile tyre pressure check.
GPS instruments and submersion watch detect ambient exterior atmospheric pressure to test geographical position height residing for its device using pressure sensor
Height detection is realized in change.Application in automobile tyre pressure sensor is then mainly directly detected in automobile tire by pressure sensor
Pressure change, so as to reach the purpose of monitoring tire pressure of automobile tire.
But, the closed gas in the direct tire of pressure sensor used in automobile tyre pressure check, due to no high humidity
Steam is spent, so semiconductor devices can be contacted directly with measurand, it is not necessary to make structure protection circuit in addition.Applied to latent
Pressure sensor in sailor's table has waterproof construction, but is typically employed under normal temperature state.It is tested in pressure cooker
Object often has higher temperature or humidity, traditional pressure sensor device, it is impossible to applied to the high pressure high humidity such as pressure cooker
In equipment.
The content of the invention
It is an object of the present invention to proposing that a kind of scope of application is big, it can be worked in higher temperature, humidity environment
Pressure sensor device.
It is another object of the present invention to propose the pressure cooker with pressure sensor device.
Pressure sensor device according to embodiments of the present invention, including：Housing, circuit board, pressure sensor and separator.Tool
For body, there is passage in the housing, the passage has first end and second end relative with the first end, it is described logical
The first end in road has opening, and the passage has air admission hole at second end；The circuit board is located in the passage；
The pressure sensor is located in the passage and positioned between the circuit board and the air admission hole；Separator is located at described logical
To prevent the gas entered from the air admission hole in the passage from directly contacting the pressure sensor in road.
Pressure sensor device according to embodiments of the present invention, pressure sensor not directly with object contact to be measured.Thus, exist
During the hot and humid measurand of detection, because measurand is not contacted directly with pressure sensor, it is to avoid the height being tested
The object of warm high humidity damages pressure sensor, makes pressure sensor device can be used for detecting hot and humid measurand, uses model
Enclose wide.In addition, pressure sensor is set on circuit boards, the reliability of pressure sensor installation is improved, pressure can be protected to pass
Sensor, reduces the fault rate of pressure sensor, improves the service life of pressure sensor.Pressure sensor device is simple in construction,
It is easy to detect and have a wide range of application.
In addition, pressure sensor device according to the above embodiment of the present invention, can also have technical characteristic additional as follows：
According to one embodiment of present invention, the pressure sensor device also includes seal, and the seal is located at described
The first end of passage is to seal the opening.Thus, it is possible to avoid the contaminating erosion circuit board in the external world, pressure sensing dress is improved
The service life put；The seal further increases the sealing reliability of the pressure sensor device simultaneously, prevents by described
The gas that second end of passage enters the passage is revealed by the first end.
According to one embodiment of present invention, described circuit board has the first surface of the first end towards the passage
With the second surface at the second end towards the passage；The pressure sensor is located on the second surface of the circuit board.
According to one embodiment of present invention, the pressure sensor device also includes connector, the first end of the connector
It is connected with the circuit board and the first end extension of the second end towards the passage of the connector passes the seal.By
This, makes the easy to assembly of the pressure sensor device, improves the efficiency of assembling of the pressure sensor device, and is easy to pressure sensing to fill
Put the signal exchange carried out between miscellaneous equipment.
According to one embodiment of present invention, the separator has the axial cross section of U-shaped.Thus, it is easy to pressure sensing
The assembling of device and separator, improves the efficiency of assembling of the pressure sensor device.
According to one embodiment of present invention, the separator is connected with the inner wall sealing of the passage.Thus, improve
Sealing effect between isolation, it is to avoid pressure sensor is damaged, and improves the service life of pressure sensor.
According to one embodiment of present invention, there is step in the passage and the board support is in the step
On step surface.Thus, circuit board is stably installed in passage, improve the stability of the pressure-detecting device.
According to one embodiment of present invention, the first end of the passage opens wide to form the opening, the seal
For the epoxy resin being filled in the first end of the passage, and the epoxy resin and the circuit board contacts.Thus, not only
The sealing effectiveness of seal is improved, and seal coordinates with step surface, circuit board is stably located at pressure sensing dress
In putting.
According to one embodiment of present invention, the air admission hole is along the axially extending of the housing.Thus, it is easy to tested pair
As the pressure for the measurand in entrance passage, making to enter in passage is consistent with the pressure in tested device, detection knot is improved
The precision of fruit.
According to one embodiment of present invention, the passage is divided into footpath along the first end from the passage to the direction at the second end
The first paragraph that is sequentially reduced to size, second segment and the 3rd section, the second end of the passage are opened wide to constitute the air admission hole, institute
The radial dimension for stating air admission hole is less than described 3rd section of radial dimension.Thus, the junction of first paragraph and second segment forms platform
Rank, is easy to the installation of circuit board, can also reduce impact of the measurand to closure member.
According to one embodiment of present invention, the separator be connected with the second surface of the circuit board with the electricity
Road plate limits sealing space, and the pressure sensor is located in the sealing space.Thus, it is to avoid measurand is passed with pressure
Sensor is contacted, and is made pressure sensor steady operation, is improved the stability and service life of pressure sensor.
According to one embodiment of present invention, dielectric is filled with the sealing space, the dielectric is sky
Gas or insulating oil.Thus, the sealing effectiveness of sealing space is further improved.And can be fast by the pressure of measurand in passage
On conduction to the pressure sensor of speed, it is easy to the detection of pressure sensor, improves the precision of testing result.
According to one embodiment of present invention, the separator is silica gel thin film.Thus, it is to avoid the high temperature in measurand
Steam enters in sealing space, improves the life-span of pressure sensor and the precision of testing result.
Pressure cooker according to embodiments of the present invention, including：Pot, pot cover, controller and pressure sensor device.It is specific and
There is cooking cavity in speech, the pot；The pot cover covers in the pot to close the cooking cavity；The pressure sensing dress
Be set to the pressure sensor device according to present invention and be located on the pot cover, the air admission hole of the passage with it is described
Cooking cavity is connected, and the circuit board of the pressure sensor device is connected with the controller.
Pressure cooker according to embodiments of the present invention, provided with the pressure sensor device according to present invention, thus,
The hot and humid gas in pressure cooker can be fast and accurately detected, is easy in time control the pressure and temperature of pressure cooker
System, makes the pressure cooker more intelligent, is easy to use.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become from description of the accompanying drawings below to embodiment is combined
Substantially and be readily appreciated that, wherein：
Fig. 1 is the diagrammatic cross-section of pressure sensor device according to an embodiment of the invention.
Wherein, pressure sensor device 1, housing 11, circuit board 12, pressure sensor 13, separator 14, seal 15, company
Connect device 16, passage 101, air admission hole 102.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and be not considered as limiting the invention.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise " are, based on orientation shown in the drawings or position relationship, to be for only for ease of
The description present invention and simplified description, rather than indicate or imply that the device or element of meaning must have specific orientation, Yi Te
Fixed azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include one or more this feature.In the description of the invention, " multiple " are meant that two or more,
Unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；It can be machine
Tool is connected or electrically connected；Can be joined directly together, can also be indirectly connected to by intermediary, can be two members
Connection inside part.For the ordinary skill in the art, above-mentioned term can be understood in this hair as the case may be
Concrete meaning in bright.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or it " under "
Can directly it be contacted including the first and second features, it is not direct contact but by it that can also include the first and second features
Between other characterisation contact.Moreover, fisrt feature second feature " on ", " top " and " above " to include first special
Levy directly over second feature and oblique upper, or be merely representative of fisrt feature level height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " fisrt feature that includes are immediately below second feature and obliquely downward, or be merely representative of
Fisrt feature level height is less than second feature.
Pressure sensor is widely used on various industrial equipments, and the pressure sensor on industrial equipment has larger
Range, in addition, pressure sensor is also applied to the consumer electronics industry, such as GPS device, submersion watch, automobile tyre pressure check.
GPS instruments and submersion watch detect ambient exterior atmospheric pressure to test geographical position height residing for its device using pressure sensor
Height detection is realized in change.Application in automobile tyre pressure sensor is then mainly directly detected in automobile tire by pressure sensor
Pressure change, so as to reach the purpose of monitoring tire pressure of automobile tire.But, the pressure sensor used in automobile tyre pressure check
Closed gas in direct tire, due to there is no high humility steam, so semiconductor devices can be contacted directly with measurand,
Structure protection circuit need not be made in addition.There is waterproof construction applied to the pressure sensor in underwater watch, but typically should
Under normal temperature state.In pressure cooker, tested object often has higher temperature or humidity, traditional pressure sensing
Device, it is impossible in the equipment applied to the high pressure high humidity such as pressure cooker.Therefore, the present invention propose it is a kind of detectable hot and humid
Detect the pressure sensor device of object.
The pressure sensor device of the embodiment of the present invention is described in detail with reference to the accompanying drawings.
As shown in figure 1, pressure sensor device 1 according to embodiments of the present invention, including：Housing 11, circuit board 12, pressure are passed
Sensor 13 and separator 14.
Specifically, there is passage 101, passage 101 has first end in housing 11（Upward one end i.e. as shown in Figure 1）
Second end relative with the first end（Downward one end i.e. as shown in Figure 1）, the first end of passage 101 has opening, passage
101 air admission holes 102 having at the second end of the passage.Circuit board 12 is located in passage 101.Pressure sensor 13 is located at
It please be located in passage 101 between circuit board 12 and air admission hole 102, circuit board 12 has the protection for being used for protecting pressure sensor 13
Circuit.Separator 14 is located in passage 101, and the gas for preventing from entering in passage 101 from air admission hole 102 directly contacts pressure
Force snesor 13, it is to avoid build-up of pressure sensor 13 is damaged because of measurand direct contact pressure sensor 13.
Pressure sensor device according to embodiments of the present invention, pressure sensor 13 not directly with object contact to be measured.Thus,
When detecting hot and humid measurand, because measurand is not contacted directly with pressure sensor 13, it is to avoid be tested
Hot and humid object damage pressure sensor 13, make pressure sensor device 1 can be used for detecting hot and humid measurand,
It is wide using scope.In addition, pressure sensor 13 is set on the circuit board 12, the reliability of the installation of pressure sensor 13 is improved, can
To protect pressure sensor 13, the fault rate of pressure sensor 13 is reduced, the service life of pressure sensor 13 is improved.Pressure
Sensing device 1 is simple in construction, easy to detect and have a wide range of application.
In addition, the pressure sensor device of the present invention also includes seal 15, seal 15 is located at the first end of passage 101
（Upper end i.e. as shown in Figure 1）To seal the opening of the first end of passage 101.Thus, it is possible to avoid the contaminating erosion circuit in the external world
Plate 12, improves the service life of pressure sensor 13；Seal 15 further increases the sealing of pressure sensor 13 simultaneously
Reliability, prevents from being revealed by the first end of passage 101 by the gas that the second end of passage 101 enters passage 101.
Advantageously, circuit board 12 has the first surface of the first end towards passage 101 and the second end towards passage 101
Second surface, in other words, as shown in figure 1, the upper surface of circuit board 12 is the first surface of circuit board 12, under circuit board 12
Surface is the second surface of circuit board 12；Pressure sensor 13 is located on the second surface of circuit board 12.Thus, pressure sensing is made
Device 13 is stably mounted to improve the stability of pressure sensor 13 on circuit board 12.
Further, because pressure sensor device 1 needs to be connected for signal exchange with miscellaneous part, as shown in figure 1, pressure
Force sensor also includes connector 16, and the first end of connector 16 is connected with circuit board 12, the second end direction of connector 16
The first end extension of passage 101 passes seal 15.Thus, make the easy to assembly of the pressure sensor device 1, improve the pressure
The efficiency of assembling of sensing device, and it is easy to the signal exchange that is carried out between pressure sensor device 1 and other parts.
Furthermore, it is possible on the circuit board 12 setting signal emitter or draw data wire, for signal transmission, this for
One of ordinary skill in the art will be understood by.
As shown in figure 1, in some specific examples of invention, separator 14 has the axial cross section of U-shaped.In other words, every
Off member 14 is has reeded plate body, and the groove is the circular groove to be formed on plate body, and the groove of separator 14 coordinates in electricity
On the second surface of road plate 12, and pressure sensor 13 is contained in groove, thus, is easy to pressure sensor 13 and separator 14
Assembling, improve the efficiency of assembling of pressure sensor device 1.
In addition, separator 14 is connected with the inner wall sealing of passage 101.Further, separator 14 and passage 101 is interior
Wall glue connects.Thus, improve the sealing effectiveness of separator 14, it is to avoid pressure sensor 13 is damaged, improve pressure sensor device 1
Service life.Using glue downlink connection separator 14 and the inwall of passage 101, not only make separator 14 that there is preferably sealing effect
Really, it is and easy for installation, improve the installation effectiveness of separator 14, cost is low, and it is stable to install separator 14, it is to avoid because every
Off member 14 come off caused by the phenomenon such as isolated failure, improve the stability of the pressure sensor device 1.
As shown in figure 1, the first end of passage 101 is opened wide.Thus, be easy to the shaping of housing 11, improve housing 11 into
Type efficiency.It is arranged in addition, being also convenient for separator 14, pressure sensor 13, circuit board 12 by the unlimited first end of passage 101
In passage, the efficiency of assembling of pressure sensor device 1 is improved.
As shown in figure 1, in the specific example of the present invention, having step in passage 101, circuit board 12 is supported on this
On the step surface of step.In other words, the extension of the second surface of circuit board 12 coordinates on the step surface.Thus, circuit board is made
12 are stably installed in passage 101, improve the stability of the pressure-detecting device.
In addition, the boss of mounting circuit boards 12 can also be provided on the inwall of passage 101 in the passage of the present invention
Or buckle structure.
Further, the glue of circuit board 12 is connected on the step surface.Thus, install circuit board 12 stable, reduce pressure
The installation cost of sensing device 1.
As shown in figure 1, in one embodiment of the invention, seal 15 is epoxy resin body.Thus, sealing is not only made
Part 15 has preferable sealing effectiveness, prevents from passing through the first end by the gas that the second end of the passage enters the passage
Leakage, and the contaminating erosion circuit board 12 in the external world can be avoided, improve the service life of pressure sensor device 1.
Further, the first end of passage 101 is opened wide to form opening, and seal 15 is to be filled in the first of passage 101
Epoxy resin in end, and epoxy resin contacts with circuit board 12.Thus, the sealing effectiveness of seal 15 is not only increased, and
And seal 15 coordinates with step surface, circuit board 12 is stably located in pressure sensor device 1.
As shown in figure 1, according to one embodiment of present invention, air admission hole 102 is axially extending along housing 11.Thus, just
Enter in measurand in passage 101, make to enter the pressure one in the pressure and tested device of the measurand in passage 101
Cause, improve the precision of testing result.
In addition, as shown in figure 1, passage 101 along the first end from the passage to the direction at the second end be divided into radial dimension according to
The first paragraph of secondary reduction, second segment and the 3rd section, in other words, the radial dimension of passage 101 along it is as shown in Figure 1 from top to bottom
Direction is sequentially reduced.Second end of passage 101 is opened wide to constitute air admission hole 102, and the radial dimension of air admission hole 102 is less than described the
Three sections of radial dimension.Thus, the junction of the first paragraph of passage 101 and second segment forms step, is easy to the installation of circuit board,
Impact of the measurand to closure member can also be reduced.
Advantageously, housing 11 is integrally formed.The structure of housing 11 is simplified, makes the convenient formation of housing 11, and cost is low, carries
The high shaping efficiency of housing 11.In addition, integrally formed housing 11 also improves the sealing of pressure sensor device 1.
As shown in figure 1, according to one embodiment of present invention, separator 14 be connected with the second surface of circuit board 12 with
Circuit board 12 limits sealing space, and pressure sensor 13 is located in the sealing space.Thus, it is to avoid measurand is passed with pressure
Sensor 13 is contacted, and makes the steady operation of pressure sensor 13, improves the stability and service life of pressure sensor 13.
In addition, being filled with dielectric in the sealing space.Advantageously, the dielectric is air or insulating oil.Thus,
The further sealing effectiveness for improving sealing space.And the pressure of measurand in passage 101 can be quickly conducted to pressure
On force snesor 13, it is easy to the detection of pressure sensor 13, improves the precision of testing result.
Further, separator 14 is silica gel thin film.Thus, it is to avoid the superheated vapor in measurand enters sealing space
It is interior, improve the life-span of pressure sensor 13 and the precision of testing result.
Pressure cooker according to embodiments of the present invention, including：Pot, pot cover, controller and pressure sensor device.
Specifically, there is cooking cavity in the pot.The pot cover covers in the pot to close the cooking cavity.
The pressure sensor device is the pressure sensor device 1 according to present invention, and pressure sensor device 1 is located at institute
State on pot cover, the air admission hole 102 of passage 101 is connected with the cooking cavity, the circuit board of pressure sensor device 1 and the controller
It is connected.
Pressure cooker according to embodiments of the present invention, provided with the pressure sensor device 1 according to present invention,
Thus, the hot and humid gas in pressure cooker can be fast and accurately detected, is easy in time enter the pressure and temperature of pressure cooker
Row control, makes the pressure cooker more intelligent, is easy to use.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or the spy that the embodiment or example are described
Point is contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not
Necessarily refer to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be any
One or more embodiments or example in combine in an appropriate manner.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art is not departing from the principle and objective of the present invention
In the case of above-described embodiment can be changed within the scope of the invention, change, replace and modification.
Claims (11)
1. a kind of pressure sensor device, it is characterised in that including：
There is passage, the passage has first end and second end relative with the first end, described in housing, the housing
The first end of passage has opening, and the passage has air admission hole at second end；
Circuit board, the circuit board is located in the passage；
Pressure sensor, the pressure sensor be located in described passage and positioned at the circuit board and the air admission hole it
Between；
Separator, is located in the passage to prevent described in the gas directly contact entered in the passage from the air admission hole
The separator of pressure sensor；
Described circuit board have the first end towards the passage first surface and the second end towards the passage the
Two surfaces；The pressure sensor is located on the second surface of the circuit board；
The separator is connected to limit sealing space, the pressure with the circuit board with the second surface of the circuit board
Sensor is located in the sealing space, and dielectric is filled with the sealing space, and the dielectric is air；
The separator is has reeded plate body, and the pressure sensor is contained in the groove.
2. pressure sensor device according to claim 1, it is characterised in that：Also include seal, the seal is located at
The first end of the passage is to seal the opening.
3. pressure sensor device according to claim 1, it is characterised in that：Also include connector, the of the connector
One end is connected with the circuit board and the first end extension of the second end towards the passage of the connector passes the sealing
Part.
4. pressure sensor device according to claim 1, it is characterised in that：The separator has the axial cross section of U-shaped.
5. pressure sensor device according to claim 1, it is characterised in that：The inwall of the separator and the passage is close
Feud is connected.
6. pressure sensor device according to claim 1, it is characterised in that：There is step and the circuit in the passage
Plate is supported on the step surface of the step.
7. pressure sensor device according to claim 2, it is characterised in that：The first end of the passage is opened wide to be formed
State opening, the seal is the epoxy resin being filled in the first end of the passage, and the epoxy resin and the electricity
Road plate contact.
8. pressure sensor device according to claim 1, it is characterised in that：Prolong axial direction of the air admission hole along the housing
Stretch.
9. pressure sensor device according to claim 1, it is characterised in that：The passage along the first end from the passage to
The direction at the second end is divided into the first paragraph that radial dimension is sequentially reduced, second segment and the 3rd section, and the second end of the passage is opened wide
To constitute the air admission hole, the radial dimension of the air admission hole is less than described 3rd section of radial dimension.
10. the pressure sensor device according to any one of claim 1-9：Characterized in that, the separator is silica gel
Film.
11. a kind of pressure cooker, it is characterised in that including：
There is cooking cavity in pot, the pot；
Pot cover, the pot cover covers in the pot to close the cooking cavity；
Controller；
Pressure sensor device, the pressure sensor device is the pressure sensor device according to any one of claim 1-10
And be located on the pot cover, the air admission hole of the passage is connected with the cooking cavity, the circuit board of the pressure sensor device with
The controller is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310028596.1A CN103968992B (en) | 2013-01-24 | 2013-01-24 | Pressure sensor device and the pressure cooker with the device |
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|---|---|---|---|
| CN201310028596.1A CN103968992B (en) | 2013-01-24 | 2013-01-24 | Pressure sensor device and the pressure cooker with the device |
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| CN103968992B true CN103968992B (en) | 2017-07-25 |
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| CN204797561U (en) * | 2014-11-19 | 2015-11-25 | 史利利 | Pressure sensor mounting structure and electric pressure cooker |
| CN107655615A (en) * | 2017-11-02 | 2018-02-02 | 美的集团股份有限公司 | Pressure-detecting device and kitchen appliance for kitchen appliance |
| CN108955993A (en) * | 2018-05-23 | 2018-12-07 | 易彩科技（杭州）有限责任公司 | A kind of ductwork pressure transmitter of super low-power consumption |
| CN109060238B (en) * | 2018-08-13 | 2024-04-05 | 吴江梅塞尔工业气体有限公司 | Overpressure protection device of vacuum gauge |
| CN109820415B (en) * | 2018-12-29 | 2021-07-06 | 九阳股份有限公司 | Electric kettle |
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