Pressure sensor assembly
Technical field
The utility model relates to a kind of pressure sensor assembly, especially a kind of pressure sensor group for the pipe that is integrated and connected
Part.
Background technique
In the prior art, the pressure sensor that pressure sensor generally comprises connecting tube and is assembled into connecting tube.For
It avoids the fuel oil in connecting tube from leaking out, one sealing ring is set in connecting tube and pressure sensor direct requirement.Sealing
Circle the problem is that, when the sealing ring practical time is more long, sealing ring have infiltration reveal danger.
Chinese patent CN205186020U discloses a kind of pressure sensor assembly, is by assembling pressure sensor
Onto connecting tube.Itself the problem is that, the risk of leakage can be had by being assembled into pressure sensor in connecting tube.Therefore, have
Necessity provides the new pressure sensor of one kind so as to overcome the problems existing in the prior art.
Utility model content
The purpose of the utility model is to provide a kind of good pressure sensor assemblies of sealing effect.
One aspect according to the present utility model provides a kind of pressure sensor assembly comprising:
Connecting tube, the connecting tube are equipped with through-hole;
Pressure sensor, the pressure sensor include insulating body, fixed in insulating body conductive terminal and
Pressure sensitive chip, the insulating body include the tail end being connected with connecting tube and from the front end that tail end extends to form forward,
The front end is equipped with accepting hole, and the free end of the conductive terminal is protruded into accepting hole, and the tail end is equipped with the recessed of opening upwards
Slot, the pressure sensitive chip are placed in groove, and the pressure sensitive chip is electrically connected with conductive terminal, and the tail end is equipped with
The connecting hole that through-hole is connected with groove, the insulating body and connecting tube are to be integrally formed by way of injection molding;
Cover board, the cover board are fixed on pressure sensor to cover groove.
Preferably, the through-hole is equipped with the first central axis, and the connecting hole is equipped with second perpendicular with the first central axis
Central axis, the connecting hole are pyramid type, and the diameter of the connecting hole gradually becomes smaller from groove to through-hole direction.
Preferably, the cover board is fixed to pressure sensor by way of clamping.
Preferably, the cover board includes the clamping foot that main part and main body extend downwardly, under the clamping foot
End is equipped with the protruding portion to extend internally, and the tail end of the insulating body is equipped with the securing groove protruded into for protruding portion.
Preferably, the through-hole is equipped with the first central axis, and the accepting hole is equipped with the third perpendicular with the first central axis
The extending direction of central axis, the securing groove is parallel with third central axis.
Preferably, the cover board further includes the elongated end that main body extends forward, the extending direction of the elongated end with
The extending direction of securing groove is parallel.
One aspect according to the present utility model provides a kind of pressure sensor assembly comprising:
Connecting tube, the connecting tube are equipped with through-hole;
Pressure sensor, the pressure sensor include insulating body, and the insulating body includes being connected with connecting tube
Tail end and from the front end that tail end extends to form forward, the front end is equipped with accepting hole, and the tail end is equipped with the recessed of opening upwards
Slot, the tail end are equipped with the connecting hole that through-hole is connected with groove, and the insulating body and connecting tube are by being molded into
The mode of type is integrally formed, and the extending direction of the accepting hole and the extending direction of through-hole are perpendicular;
Cover board, the cover board are fixed on pressure sensor to cover groove.
Preferably, the cover board includes the clamping foot that main part and main body extend downwardly, under the clamping foot
End is equipped with the protruding portion to extend internally, and the tail end of the insulating body is equipped with the securing groove protruded into for protruding portion, the securing groove
For line-styled.
Preferably, the extending direction of the securing groove and the extending direction of accepting hole are parallel.
Preferably, the through-hole is equipped with draft angle.
Pressure sensor assembly provided by the utility model is by the insulating body and connecting tube for making pressure sensor
Injection molding is integrally formed, and increases the sealing effect of product, and reduce assembling procedure.
Detailed description of the invention
Fig. 1 is the perspective view of the pressure sensor assembly of the utility model.
Fig. 2 is the stereogram exploded view of the pressure sensor assembly of the utility model.
Fig. 3 is the cross-sectional view of the pressure sensor assembly of the utility model.
Fig. 4 is the cross-sectional view of another angle of the pressure sensor assembly of the utility model.
Specific embodiment
Shown in Figure 1, the utility model provides a kind of pressure sensor assembly 100 comprising connecting tube 1, with connect
The connected pressure sensor 2 of pipe 1 and fixed to the cover board 3 on pressure sensor 2.
With further reference to shown in Fig. 2 and Fig. 3, connecting tube 1 is equipped with through-hole 11.
Pressure sensor 2 includes insulating body 21, fixed to the conductive terminal 23 and pressure sensitive in insulating body 21
Chip 22.Insulating body 21 includes the tail end 212 being connected with connecting tube 1 and from the front end that tail end 212 extends to form forward
211.Front end 211 is equipped with accepting hole 2111, and the free end of conductive terminal 23 is protruded into accepting hole 2111.When in use, external electricity
It connects in equipment insertion accepting hole 2111 (not shown), and is electrically connected with conductive terminal 23, pressure sensitive chip 22 is obtained
Signal be transmitted to external electric connecting device.
The tail end 212 of insulating body 21 is equipped with the groove 2121 of opening upwards.Pressure sensitive chip 22 is placed in groove 2121
Interior, pressure sensitive chip 22 is electrically connected with conductive terminal 23.Tail end 212 is equipped with the company that through-hole 11 is connected with groove 2121
Connect hole 2122.Insulating body 21 and connecting tube 1 are to be integrally formed by way of injection molding.The utility model will be by that will insulate
Ontology 21 and connecting tube 1 are integrally formed by way of injection molding, so that having between insulating body 21 and connecting tube 1 preferable
Sealing effect, avoid the problem that leakage.Meanwhile being integrally formed by way of injection molding, reduce assembling procedure.
In order to avoid extraneous object impacts pressure sensitive chip 22, the utility model passes through cover board 3 is fixed
To cover groove 2121 on to pressure sensor 2.Preferably, cover board 3 is fixed to pressure sensor 2 by way of clamping.
Cover board 3 includes the clamping foot 31 that main part 32 and main body 32 extend downwardly.The lower end of clamping foot 31 is equipped with
The protruding portion 311 to extend internally.The tail end 212 of insulating body 21 is equipped with the securing groove 2123 protruded into for protruding portion 311.Cover board 3
It further include the elongated end 33 that main body 32 extends forward.The extending direction phase of the extending direction of elongated end 33 and securing groove 2123
In parallel.
Preferably, securing groove 2123 is line-styled.The extending direction of securing groove 2123 and the extension side of accepting hole 2111
To parallel.By the setting, the product can be made in injection molding, manufactured more convenient.The utility model only needs
A smooth type core is manufactured, the securing groove 2123 of line-styled can be molded.
With further reference to shown in Fig. 4, through-hole 11 is equipped with the first central axis L 1.Connecting hole 2122 is equipped with and the first central axis L 1
The second perpendicular central axis L 2.For the ease of die sinking, through-hole 2123 is equipped with draft angle.Preferably, connecting hole 2122 is circular cone
The diameter of type, connecting hole 2122 gradually becomes smaller from groove 2121 to 11 direction of through-hole.
Accepting hole 2111 is equipped with the third central axis L 3 perpendicular with the first central axis L 1.The extending direction of securing groove 2123
It is parallel with third central axis L 3.
The utility model is integrally formed in a manner of injection molding by insulating body 21 and connecting tube 1, so that insulation
The problem of there is preferable sealing effect between ontology 21 and connecting tube 1, avoid infiltration leakage.Meanwhile reducing assembling work
Sequence largely saves built-up time.
Those skilled in the art can be obvious, can the above exemplary embodiments of the utility model be carry out various modifications and be become
Spirit and scope of the type without departing from the utility model.Accordingly, it is intended to which the utility model covering is made to fall in the appended claims
And its modifications and variations to the utility model within the scope of equivalent arrangements.