CN110006584A - A kind of high-temperature-resistance pressure sensor - Google Patents
A kind of high-temperature-resistance pressure sensor Download PDFInfo
- Publication number
- CN110006584A CN110006584A CN201910289566.3A CN201910289566A CN110006584A CN 110006584 A CN110006584 A CN 110006584A CN 201910289566 A CN201910289566 A CN 201910289566A CN 110006584 A CN110006584 A CN 110006584A
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- China
- Prior art keywords
- pressure sensor
- pedestal
- heat
- tube
- temperature
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/06—Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
- G01L19/0681—Protection against excessive heat
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
A kind of high-temperature-resistance pressure sensor of the invention, including shell, pedestal, the first heat-conducting plate, the second heat-conducting plate, upper shell is equipped with pedestal, pressure sensor body is installed, the lower end of outer cover is equipped with pedestal, forms heat dissipation cavity between pedestal and pedestal in pedestal, the detection probe of pressure sensor body extends in heat dissipation cavity, it is successively staggeredly equipped with the first heat-conducting plate, the second heat-conducting plate from bottom to top on heat dissipation cavity wall, is provided through detection hole on pedestal, detection hole is connected with heat dissipation cavity.The purpose of the present invention is to provide a kind of energy high temperature resistants, disassembly more easily pressure sensor.
Description
Technical field
The present invention relates to sensor technical field, in particular to a kind of high-temperature-resistance pressure sensor.
Background technique
Pressure sensor is to experience pressure signal, and can be converted into pressure signal according to certain rule available defeated
The device or device of electric signal out.Pressure sensor is usually made of pressure-sensing device and signal processing unit.By difference
Test pressure type, pressure sensor can be divided into gauge pressure transducer, differential pressure pick-up and absolute pressure sensor.Pressure sensor exists
It in the various application occasions such as automobile, aerospace, business, industry, but is the problem of industry for the pressure detecting of high-temperature medium,
High temperature will lead to sensing element in traditional pressure sensor and signal processing circuit wafer damage or failure.
Summary of the invention
The purpose of the present invention is to provide a kind of high-temperature-resistance pressure sensors, can be led with solving above-mentioned background technique high temperature
The problem of causing sensing element and signal processing circuit wafer damage in traditional pressure sensor or failing.
To achieve the above object, the invention provides the following technical scheme: a kind of high-temperature-resistance pressure sensor, including shell,
Pedestal, the first heat-conducting plate, the second heat-conducting plate, the upper shell are equipped with pedestal, are equipped with pressure sensor in the pedestal
Ontology, the lower end of the outer cover are equipped with pedestal, and heat dissipation cavity, the pressure sensor are formed between the pedestal and the pedestal
The detection probe of ontology extends in the heat dissipation cavity, is successively staggeredly equipped with first from bottom to top on the heat dissipation cavity wall and leads
Hot plate, the second heat-conducting plate are provided through detection hole on the pedestal, and the detection hole is connected with the heat dissipation cavity.
Preferably, external screw thread is provided on the lower end outer wall of the pedestal.
Preferably, groove body is provided on the outer wall of the shell, the groove body, the shell are cylinder shape,
Tube seat is provided on the outer wall of the shell, the tube seat extends in the shape of a spiral along the outer wall of the shell, the tube seat position
In in the groove body, being wrapped heat-dissipating pipe on the tube seat, it is provided with inlet tube on the outer wall side of the groove body, it is described
Outlet tube, described heat-dissipating pipe one end and the inlet tube outlet, the heat dissipation are provided on the outer wall other side of groove body
The pipe other end and the outlet tube inlet communication.
It preferably, further include coolant circulation unit, the coolant circulation unit includes liquid reserve tank, electrodynamic pump, and first
Connecting tube one end and the inlet tube inlet communication, the first connecting tube other end are connected to the liquid reserve tank, and described first
Electrodynamic pump, second connecting tube one end and the outlet tube outlet, the second connecting tube other end are installed in connecting tube
It is connected to the liquid reserve tank.
Preferably, logical between first connecting tube and the inlet tube, second connecting tube and the outlet tube
Cross threaded connection.
Preferably, the liquid reserve tank, the electrodynamic pump are installed on bracket.
Preferably, liquid pipe is changed in setting on the liquid reserve tank, and described change is provided with lid in liquid pipe.
Preferably, first heat-conducting plate is arranged fluted on one end end face of the detection hole, spring one end with
The groove bottom wall is fixedly connected, and the spring other end is connect with the movable block, and the lower end of the movable block is equipped with envelope
The size of blocking, the size and the detection hole for blocking plug matches.
Preferably, the closure is provided with sealing ring beyond the Great Wall.
Compared with prior art, the beneficial effects of the present invention are: a kind of high-temperature-resistance pressure sensor of the present invention, including it is outer
Shell, pedestal, the first heat-conducting plate, the second heat-conducting plate, upper shell are equipped with pedestal, are equipped with pressure sensor body in pedestal,
The lower end of outer cover is equipped with pedestal, and heat dissipation cavity is formed between pedestal and pedestal, and the detection probe of pressure sensor body extends to
In heat dissipation cavity, the first heat-conducting plate, the second heat-conducting plate are successively staggeredly equipped on the cavity wall that radiates from bottom to top, runs through on pedestal and sets
It is equipped with detection hole, detection hole is connected with heat dissipation cavity.It is mounted on measured piece by the external screw thread of pedestal lower end, high-temperature gas warp
It crosses detection hole to enter in heat dissipation cavity, since heat dissipation cavity is divided molding long chamber, High Temperature Gas by the first heat-conducting plate, the second heat-conducting plate
Cognition can fully absorb heat by heat dissipation cavity in heat dissipation cavity and be dispersed into atmosphere, what the gas process after cooling was mounted on the base
Pressure sensor body detected pressure value.After heat dissipation cavity cools down, pressure will not change the gas of high temperature, drop
After temperature also in pressure sensor sensing element and signal processing circuit chip play protective effect, prevent high temperature from damaging.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the structural schematic diagram of heat-dissipating pipe in the present invention.
Fig. 3 is the structural schematic diagram of coolant circulation unit in the present invention.
Fig. 4 is the structural schematic diagram of plugging device in the present invention.
Fig. 5 is the working state figure of plugging device in the present invention.
In figure: 1- shell；2- pedestal；3- pressure sensor body；4- pedestal；5- heat dissipation cavity；The first heat-conducting plate of 6-；7-
Two heat-conducting plates；8- detection hole；9- groove body；10- tube seat；The second connecting tube of 11-；12- heat-dissipating pipe；The first connecting tube of 13-；14-
Inlet tube；15- outlet tube；16- liquid reserve tank；17- electrodynamic pump；18- bracket；19- changes liquid pipe；20- lid；21- groove；22- bullet
Spring；23- movable block；24- blocks plug.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1, the present invention provides a kind of high-temperature-resistance pressure sensor, including shell 1, pedestal 2, the first heat-conducting plate
6, the second heat-conducting plate 7,1 upper end of shell are equipped with pedestal 2, and pressure sensor body 3 is equipped in the pedestal 2, described
The lower end of outer cover 1 is equipped with pedestal 4, and heat dissipation cavity 5, the pressure sensor body are formed between the pedestal 2 and the pedestal 4
3 detection probe extends in the heat dissipation cavity 5, is successively staggeredly equipped with first from bottom to top on 5 inner wall of heat dissipation cavity and leads
Hot plate 6, the second heat-conducting plate 7 are provided through detection hole 8 on the pedestal 4, and the detection hole 8 is connected with the heat dissipation cavity 5
It is logical.Shell 1, the first heat-conducting plate 6, the second heat-conducting plate 7 are all made of the good metal of heating conduction, such as copper, the pedestal 4
With the pedestal 2 using the material of heating conduction difference, such as plastics.
Preferred technical solution is to be provided with external screw thread on the lower end outer wall of the pedestal 4.
Working principle: being mounted on measured piece by the external screw thread of 4 lower end of pedestal, and hole 8 enters high-temperature gas after testing
Into heat dissipation cavity 5, since heat dissipation cavity 5 is divided into the long chamber of S type by the first heat-conducting plate 6, the second heat-conducting plate 7, high-temperature gas can be
Heat dissipation cavity 5 can fully absorb heat by heat dissipation cavity 5 and be dispersed into atmosphere, and the gas after cooling passes through the pressure being mounted on pedestal 2
Force snesor ontology 3 detected pressure value.After the cooling of heat dissipation cavity 5, pressure will not change the gas of high temperature, drop
After temperature also in pressure sensor sensing element and signal processing circuit chip play protective effect, prevent high temperature from damaging.
Preferred technical solution is, as shown in Fig. 2, groove body 9 is provided on the outer wall of the shell 1, the groove body
9, the shell 1 is cylinder shape, tube seat 10 is provided on the outer wall of the shell 1, the tube seat 10 is along the shell 1
Extend in the shape of a spiral on outer wall, the tube seat 10 is located in the groove body 9, and heat-dissipating pipe 12, institute are wrapped on the tube seat 10
It states and is provided with inlet tube 14 on the outer wall side of groove body 9, be provided with outlet tube 15 on the outer wall other side of the groove body 9,
Described 12 one end of heat-dissipating pipe and 14 outlet of inlet tube, 12 other end of heat-dissipating pipe and 15 import of outlet tube connect
It is logical.By injecting coolant liquid to inlet tube 14, so that coolant liquid is full of in heat-dissipating pipe 12, then in inlet tube 14 and outlet tube 15
Installation lid sealing respectively, since heat-dissipating pipe 12 extends in the shape of a spiral on tube seat 10, this considerably increases heat-dissipating pipe 12 and outside
The contact area of shell 1 enables the heat on shell 1 to be absorbed faster by coolant liquid, achievees the effect that fast cooling.Coolant liquid
It can be discharged by outlet tube 15.
Preferred technical solution is, as shown in figure 3, further include coolant circulation unit, the coolant circulation unit packet
Liquid reserve tank 16, electrodynamic pump 17,13 one end of the first connecting tube and 14 inlet communication of inlet tube are included, first connecting tube 13 is another
One end is connected to the liquid reserve tank 16, and electrodynamic pump 17,11 one end of the second connecting tube and institute are equipped in first connecting tube 13
15 outlet of outlet tube is stated, 11 other end of the second connecting tube is connected to the liquid reserve tank 16.It is stored in liquid reserve tank 16 cold
But liquid is driven by electrodynamic pump 17, coolant liquid successively pass through liquid reserve tank 16, the first connecting tube 13, inlet tube 14, outlet tube 15,
Second connecting tube 11 is recycled, and constantly quickly takes away the heat on outer cover 1, to cope with the fast prompt drop of superhigh temperature gas
Temperature.
Preferred technical solution is first connecting tube 13 and the inlet tube 14, second connecting tube 11 and institute
It states and is connected through a screw thread between outlet tube 15, facilitate installing and dismounting.
Preferred technical solution is that the liquid reserve tank 16, the electrodynamic pump 17 are respectively mounted on mount 18, and bracket 18 is used for
Support liquid reserve tank 16 and electrodynamic pump 17.
Preferred technical solution is that liquid pipe 19 is changed in setting on the liquid reserve tank 16, and described change in liquid pipe 19 is provided with lid
20, for son of periodically uncapping greatly, the coolant liquid of liquid reserve tank 16 is replaced.
Preferred technical solution is that as illustrated in figures 4-5, first heat-conducting plate 6 is close to one end end face of the detection hole 8
Upper setting fluted 21,22 one end of spring is fixedly connected with 21 bottom wall of groove, 22 other end of spring and the movement
Block 23 connects, and the lower end of the movable block 23 is equipped with pedestal 24, the size of the size for blocking plug 24 and the detection hole 8
Match.It is provided with sealing ring on the closure plug 24, sealing ring can preferably block detection hole 8.In working condition,
Under the pressure of detected gas, movable block 23, closure plug 24 move upwards, and overcome the elastic force of spring 22, and detection hole 8 is in and leads
Logical state, the pressure of pressure sensor energy detection gas, during design, the pressure value of pressure sensor body 3 is wanted
In addition the pressure that spring generates is modified, to guarantee the accuracy of pressure detecting；When in an inactive state, pedestal 4 is split
It unloads down, not the pressure of detection gas, under the elastic force effect of the elastic force of spring 22, blocks plug 24 and move downward, will test
Hole 8 blocks, and prevents other foreign matters from entering in detection hole 8, improves the service life of sensor.
In the description of the present invention, it is to be understood that, term " coaxial ", " bottom ", " one end ", " top ", " middle part ",
The orientation or positional relationship of the instructions such as " other end ", "upper", " side ", " top ", "inner", " front ", " center ", " both ends " is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.
In addition, term " first ", " second ", " third ", " the 4th " are used for description purposes only, and should not be understood as instruction or
It implies relative importance or implicitly indicates the quantity of indicated technical characteristic, define " first ", " second ", " the as a result,
Three ", the feature of " the 4th " can explicitly or implicitly include at least one of the features.
In the present invention unless specifically defined or limited otherwise, term " installation ", " setting ", " connection ", " fixation ",
Terms such as " being screwed on " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be with
It is mechanical connection, is also possible to be electrically connected；It can be directly connected, two can also be can be indirectly connected through an intermediary
The interaction relationship of connection or two elements inside a element, unless otherwise restricted clearly, for the common of this field
For technical staff, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
Although the present specification is described in terms of embodiments, for the ordinary skill in the art, Ke Yili
Solution without departing from the principles and spirit of the present invention can to these embodiments carry out it is a variety of variation, modification, replacement and
Modification, the scope of the present invention is defined by the appended.
Claims (9)
1. a kind of high-temperature-resistance pressure sensor, it is characterised in that: including shell (1), pedestal (2), the first heat-conducting plate (6), second
Heat-conducting plate (7), shell (1) upper end are equipped with pedestal (2), are equipped with pressure sensor body (3) in the pedestal (2),
The lower end of the outer cover (1) is equipped with pedestal (4), forms heat dissipation cavity (5) between the pedestal (2) and the pedestal (4), described
The detection probe of pressure sensor body (3) extends in the heat dissipation cavity (5), on heat dissipation cavity (5) inner wall from bottom to top
It is successively staggeredly equipped with the first heat-conducting plate (6), the second heat-conducting plate (7), is provided through detection hole (8), institute on the pedestal (4)
Detection hole (8) is stated to be connected with the heat dissipation cavity (5).
2. a kind of high-temperature-resistance pressure sensor according to claim 1, it is characterised in that: outside the lower end of the pedestal (4)
External screw thread is provided on wall.
3. a kind of high-temperature-resistance pressure sensor according to claim 1, it is characterised in that: on the outer wall of the shell (1)
It is provided with groove body (9), the groove body (9), the shell (1) are cylinder shape, are arranged on the outer wall of the shell (1)
Have tube seat (10), the tube seat (10) extends in the shape of a spiral along the outer wall of the shell (1), and the tube seat (10) is located at described
In groove body (9), be wrapped heat-dissipating pipe (12) on the tube seat (10), be provided on the outer wall side of the groove body (9) into
Liquid pipe (14) is provided with outlet tube (15) on the outer wall other side of the groove body (9), described heat-dissipating pipe (12) one end with it is described
Inlet tube (14) outlet, heat-dissipating pipe (12) other end and the outlet tube (15) inlet communication.
4. a kind of high-temperature-resistance pressure sensor according to claim 3, it is characterised in that: further include coolant liquid circulation dress
It sets, the coolant circulation unit includes liquid reserve tank (16), electrodynamic pump (17), the first connecting tube (13) one end and the inlet tube
(14) inlet communication, the first connecting tube (13) other end are connected to the liquid reserve tank (16), first connecting tube (13)
On be equipped with electrodynamic pump (17), the second connecting tube (11) one end and the outlet tube (15) outlet, second connecting tube
(11) other end is connected to the liquid reserve tank (16).
5. a kind of high-temperature-resistance pressure sensor according to claim 1, it is characterised in that: first connecting tube (13) with
It is connected through a screw thread between the inlet tube (14), second connecting tube (11) and the outlet tube (15).
6. a kind of high-temperature-resistance pressure sensor according to claim 1, it is characterised in that: the liquid reserve tank (16), described
Electrodynamic pump (17) is installed on bracket (18).
7. a kind of high-temperature-resistance pressure sensor according to claim 1, it is characterised in that: be arranged on the liquid reserve tank (16)
It changes liquid pipe (19), described change on liquid pipe (19) is provided with lid (20).
8. a kind of high-temperature-resistance pressure sensor according to claim 1, it is characterised in that: first heat-conducting plate (6) is leaned on
It is arranged fluted (21) on one end end face of the nearly detection hole (8), spring (22) one end is fixed with the groove (21) bottom wall
Connection, spring (22) other end are connect with the movable block (23), and the lower end of the movable block (23) is equipped with closure plug
(24), the size of the size and the detection hole (8) for blocking plug (24) matches.
9. a kind of high-temperature-resistance pressure sensor according to claim 8, it is characterised in that: be arranged on the closure plug (24)
There is sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910289566.3A CN110006584A (en) | 2019-04-11 | 2019-04-11 | A kind of high-temperature-resistance pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910289566.3A CN110006584A (en) | 2019-04-11 | 2019-04-11 | A kind of high-temperature-resistance pressure sensor |
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| Publication Number | Publication Date |
|---|---|
| CN110006584A true CN110006584A (en) | 2019-07-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910289566.3A Pending CN110006584A (en) | 2019-04-11 | 2019-04-11 | A kind of high-temperature-resistance pressure sensor |
Country Status (1)
| Country | Link |
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| CN (1) | CN110006584A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110243534A (en) * | 2019-07-22 | 2019-09-17 | 平顶山学院 | A kind of pressure sensor and assembly method |
| CN112284604A (en) * | 2020-11-05 | 2021-01-29 | 南京沃天科技有限公司 | High-temperature-resistant pressure transmitter |
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Application publication date: 20190712 |