CN209166694U - Air conditioning for automobiles pressure sensor - Google Patents
Air conditioning for automobiles pressure sensor Download PDFInfo
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- CN209166694U CN209166694U CN201822030157.5U CN201822030157U CN209166694U CN 209166694 U CN209166694 U CN 209166694U CN 201822030157 U CN201822030157 U CN 201822030157U CN 209166694 U CN209166694 U CN 209166694U
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- pressure sensor
- substrate
- air conditioning
- automobiles
- sensor chip
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Abstract
The utility model provides a kind of air conditioning for automobiles pressure sensor, including pedestal, electrical connector, substrate, pressure sensor chip, air conditioning for automobiles pressure sensor further includes limiting component, and pedestal has receiving portion, and receiving portion has opening, limiting component is placed on the bottom surface of receiving portion, limiting component has the supporting part of annular, and substrate is placed on supporting part, and pressure sensor chip is placed on substrate, electrical connector has an interconnecting piece, and interconnecting piece is placed in receiving portion.A kind of air conditioning for automobiles pressure sensor provided by the utility model increases limiting component between substrate and pedestal, and the base contacts so that substrate is got along well when being pressurized reduce substrate breakage risk.
Description
Technical field
The utility model relates generally to automotive field more particularly to a kind of air conditioning for automobiles pressure sensor.
Background technique
The A/C pressure sensor of automobile is the important device detected to vehicle air conditioning pressure, and the data of detection can be with
Help the normal operation of air-conditioning.
Conventional electronic type A/C pressure sensor includes pressure sensor, signal processing circuit, shell and fixes
Wiring board.Pressure sensor is made of the thick film in substrate.Signal processing circuit is by power circuit, sensor compensation electricity
The composition such as road, zeroing circuit, voltage amplifier circuit, current amplification circuit, filter circuit and warning circuit.This air conditioning pressure
There is thick film encapsulation difficulty in sensor.And this A/C pressure sensor relies on the circuit on thick film by pressure conversion
For electric signal, the shortcomings that there are low precisions.
A kind of improved A/C pressure sensor is provided with through-hole, through-hole and the biography for being bonded in upper surface of base plate in a substrate
The connection of sensor chip bottom cavity.Substrate is arranged on the supporting surface of pedestal, and electrical connector is in conjunction with pedestal and pushes down on pedestal
Substrate.The shortcomings that this structure, is that the pressure of electrical connector can make substrate and support face contact, improves substrate breakage
Risk.
Utility model content
Problem to be solved in the utility model is to propose a kind of air conditioning for automobiles pressure sensor, can reduce substrate breakage
Risk.
The one aspect of the utility model proposes a kind of air conditioning for automobiles pressure sensor, including pedestal, electrical connector, base
Plate, pressure sensor chip, which is characterized in that the air conditioning for automobiles pressure sensor further includes limiting component, in which: the bottom
Seat tool has receiving portion, and described accommodation section has opening, and the limiting component is placed on the bottom surface of described accommodation section, the limiting section
Part has the supporting part of annular, and the substrate is placed on the supporting part, and the pressure sensor chip is placed in the substrate
On；The electrical connector has an interconnecting piece, and the interconnecting piece is placed in described accommodation section.
Optionally, the interconnecting piece has at least one bayonet, and the limiting component has at least one hook, when described
When interconnecting piece is placed in described accommodation section, the bayonet is caught in the hook, and interconnecting piece pressure is set on the substrate.
Optionally, above-mentioned air conditioning for automobiles pressure sensor further includes clamp ring, be set to the interconnecting piece and the substrate it
Between, the side wall locking of the clamp ring and described accommodation section is set on the substrate with pressing.
Optionally, the substrate has groove towards the first surface of the electrical connector, and the bottom portion of groove has logical
The through-hole of second surface to the substrate far from the electrical connector, the pressure sensor chip are set in the groove,
And the through-hole exposes the pressure sensor chip.
Optionally, first surface of the substrate towards the electrical connector is plane, and remote with the substrate is led to
The through-hole of second surface from the electrical connector, the pressure sensor chip are set on the first surface, and described logical
Expose the pressure sensor chip in hole.
Optionally, above-mentioned air conditioning for automobiles pressure sensor further includes flexible circuit board, is attached at described the of the substrate
On one surface, the pressure sensor chip is electrically connected the flexible circuit board.
Optionally, above-mentioned air conditioning for automobiles pressure sensor further includes flexible circuit board and calibration circuit board, the calibration electricity
Road plate is set on the interconnecting piece of the electrical connector, and the flexible circuit board is connected to the pressure sensor chip and institute
It states between calibration circuit board.
Optionally, first table at the back side of the pressure sensor chip towards the electrical connector and the substrate
Face is concordant.
Optionally, the pedestal has the transmission through-hole that described accommodation section bottom surface is through to from the bottom surface of the pedestal.
Optionally, sealing ring is equipped between the substrate and the bottom surface of described accommodation section.
Compared with prior art, the air conditioning for automobiles pressure sensor of the utility model increases limit between substrate and pedestal
Position component, the base contacts so that substrate is got along well when being pressurized, reduces substrate breakage risk.In addition, some sides of the utility model
Pressure sensor chip is set in the groove of substrate by case, and after chip being made to install, portion is more preferable in the cavity for chip bonding pad
Drop protective glue, glue is not easy to outflow.
Detailed description of the invention
Figure 1A, 1B are the decomposing state figures of the air conditioning for automobiles pressure sensor of the utility model first embodiment.
Fig. 2 is the assembling figure of the air conditioning for automobiles pressure sensor of the utility model first embodiment.
Fig. 3 A, 3B are the decomposing state figures of the air conditioning for automobiles pressure sensor of the utility model second embodiment.
Fig. 4 is the assembling figure of the air conditioning for automobiles pressure sensor of the utility model second embodiment.
Fig. 5 A, 5B are the decomposing state figures of the air conditioning for automobiles pressure sensor of the utility model 3rd embodiment.
Fig. 6 is the assembling figure of the air conditioning for automobiles pressure sensor of the utility model 3rd embodiment.
Specific embodiment
It is practical to this below in conjunction with attached drawing for the above objects, features, and advantages of the utility model can be clearer and more comprehensible
Novel specific embodiment elaborates.
Many details are explained in the following description in order to fully understand the utility model, but this is practical new
Type can also be implemented using other different from other way described herein, therefore the utility model is not by following public tool
The limitation of body embodiment.
When the embodiment of the present application is described in detail, for purposes of illustration only, indicating that the sectional view of device architecture can disobey general proportion work
Partial enlargement, and the schematic diagram is example, should not limit the range of the application protection herein.In addition, in practical system
It should include the three-dimensional space of length, width and depth in work.
As shown in the application and claims, unless context clearly prompts exceptional situation, " one ", "an" and/
Or the words such as "the" not refer in particular to odd number, may also comprise plural number.It is, in general, that term " includes " only prompts to include bright with "comprising"
Really mark the step of and element, and these steps and element do not constitute one it is exclusive enumerate, method or apparatus may also
The step of including other or element.
When the embodiment of the present application is described in detail, for purposes of illustration only, indicating that the sectional view of device architecture can disobey general proportion work
Partial enlargement, and the schematic diagram is example, should not limit the range of the application protection herein.In addition, in practical system
It should include the three-dimensional space of length, width and depth in work.
For the convenience of description, herein may use such as " under ", " lower section ", " being lower than ", " following ", " top ", "upper"
Etc. spatial relationship word the relationships of an elements or features shown in the drawings and other elements or feature described.It will reason
Solve, these spatial relationship words be intended to encompass in use or device in operation, other than the direction described in attached drawing
Other directions.For example, being described as be in other elements or feature " below " or " under " if overturning the device in attached drawing
Or the direction of the element of " following " will be changed to " top " in the other elements or feature.Thus, illustrative word " under
Side " and " following " can include upper and lower both direction.Device may also have other directions (to be rotated by 90 ° or in other
Direction), therefore spatial relation description word used herein should be interpreted accordingly.In addition, it will also be understood that being referred to as when one layer two
Layer " between " when, it can be only layer between described two layers, or there may also be one or more intervenient layers.
In the context of this application, structure of the described fisrt feature in the "upper" of second feature may include first
Be formed as the embodiment directly contacted with second feature, also may include that other feature is formed between the first and second features
Embodiment, such first and second feature may not be direct contact.
Embodiment one
Figure 1A, 1B are the decomposing state figures of the air conditioning for automobiles pressure sensor 100 of the utility model first embodiment.
With reference to shown in Figure 1A, the air conditioning for automobiles pressure sensor 100 in the utility model first embodiment includes pedestal
110, electrical connector 120, substrate 130, pressure sensor chip 140, limiting component 150 and flexible circuit board 160.
Pedestal 110 has receiving portion 111, and electrical connector 120 has an interconnecting piece 121, and receiving portion 111 has opening, uses
In merging interconnecting piece 121 and limiting component 150.Interconnecting piece 121 has at least one bayonet 121a, and limiting component 150 has extremely
A few hook 152, bayonet 121a and hook 152 are used for mutual clamping.Interconnecting piece 121 also has compressed part 121b, substantially
It is distributed along the bottom edge of interconnecting piece 121, for compressing substrate 130.Compressed part 121b can be continuous or discontinuous.Limit
Position component 150 has the supporting part 151 of annular, and substrate 130 is placed on supporting part 151, and pressure sensor chip 140 is placed in substrate
On 130.Substrate 130 has groove 131 towards the first surface of electrical connector 120, and 131 bottom of groove, which has, leads to substrate 130
The through-hole 131a of second surface far from electrical connector 120.Pressure sensor chip 140 is set in groove 131, through-hole 131a dew
Pressure sensor chip 140 out, through-hole 131a can make air in automobile or coolant media act on pressure by through-hole 131a
On sensor chip 140.Flexible circuit board 160 is attached on the first surface of substrate 130, and flexible circuit board 160 is pressure biography
Sensor chip 140 provides power supply excitation.Pressure sensor chip 140 directly contacts air or coolant media in automobile, impression
The variation of its pressure is translated into voltage signal and exports to flexible circuit board 160.Flexible circuit board 160 is by voltage signal
It amplifies, adjust, analog-to-digital conversion, digital operation, temperature-compensating and digital-to-analogue conversion, voltage signal are converted into corresponding 0.5
It is used after~4.5VDC analog voltage signal through being supplied to user by electrical connector 120.
With reference to shown in Figure 1B, the pedestal 110 of air conditioning for automobiles pressure sensor 100 also has to be run through from the bottom surface of pedestal 110
To the transmission through-hole 112 of 111 bottom surface of receiving portion, when automobilism, the pressure of air or coolant media in automobile passes through biography
Defeated through-hole 112 is applied on pressure sensor chip 140.Sealing ring 170 is equipped between substrate 130 and the bottom surface of receiving portion 111,
Sealing ring 170 is for being better achieved sealing purpose, and the deflection of sealing ring 170 is controlled by limiting component 150, so that substrate
Discord pedestal 110 contacts when 130 compression, reduces 130 risk of rupture of substrate.
Fig. 2 is the assembling figure of the air conditioning for automobiles pressure sensor 100 of the utility model first embodiment.With reference to Fig. 2 institute
Showing, the air conditioning for automobiles pressure sensor 100 in the present embodiment is mounted on measured position by the nose threads 113 of pedestal 110,
The interconnecting piece 121 of electrical connector 120 is placed in the receiving portion 111 of pedestal 110, and limiting component 150 is placed in the bottom surface of receiving portion 111
On, the bayonet 121a of interconnecting piece 121 is caught in the hook 151 of limiting component 150, the interconnecting piece 121 of electrical connector 120 and limit
Component 150 is compressed by the closing in position 111a of the receiving portion 111 of pedestal 110, and interconnecting piece 121 is set to by compressed part 121b pressure
At substrate 130, and then sealing ring 170 is compressed by substrate 130, sealing ring 170 is by between pedestal 110 and electrical connector 120
Pressing force reaches sealing purpose.
Refering to what is shown in Fig. 2, air conditioning for automobiles pressure sensor 100 further includes conducting wire (such as spun gold) 180, pressure sensor core
Piece 140 is electrically connected flexible circuit board 160, and conducting wire 180 is for being electrically connected pressure sensor chip 140 and flexible circuit board
160.Pressure sensor chip 140 is placed in groove 131 by way of gluing, i.e. pressure sensor chip 140 and substrate
130 are connected by protective glue 131b.Adhesion process is mature and stable, good reliability.Groove 131 can make pressure sensor chip 140
After installing, protective glue 131b can preferably instill groove, it is not easy to outflow.Pressure sensor chip 140 and substrate 130
Through-hole 131a is completely covered in the bottom surface that 131 bottom of groove directly contacts.Have benefited from the presence of groove 131, pressure sensor chip
The first surface (upper surface in figure) of 140 back side (upper surface in figure) towards electrical connector 120 and substrate 130 is substantially flat
Together.Alternatively, the pad at 140 back side of pressure sensor chip can be attached at the first of substrate 130 with flexible circuit board 160
The upper surface of the part on surface is substantially concordant, so that circuit part will not be protruded from individually.Flexible circuit board 160 is attached at base
There is a notch in the part of the first surface of plate 130, and the pad at 140 back side of pressure sensor chip can be exposed by the notch and can be more
Flexible circuit board 160 is connected to by conducting wire 180 well.
Embodiment two
Fig. 3 A, 3B are the decomposing state figures of the air conditioning for automobiles pressure sensor 200 of the utility model second embodiment.
With reference to shown in Fig. 3 A, unlike the utility model first embodiment, in the utility model second embodiment
Air conditioning for automobiles pressure sensor 200 further includes clamp ring 210, set on electrical connector 220 interconnecting piece 221 and substrate 130 it
Between, for the fixed pressure sensor chip 140 being placed in groove 131.There is cushion 230 on substrate 130, for reducing locking
The locking pressure for enclosing 210 pairs of substrates 130 reduces 130 risk of rupture of substrate.Clamp ring 210 and the setting of cushion 230 are suitable
For the higher air conditioning for automobiles pressure sensor of working environment pressure.
With reference to shown in Fig. 3 B, unlike the utility model first embodiment, in the utility model second embodiment
Air conditioning for automobiles pressure sensor 200 further includes calibration circuit board 240 and flexible circuit board 260, and calibration circuit board 240 is set to electric appliance
On the interconnecting piece 221 of connector 220, flexible circuit board 260 is connected between pressure sensor chip 140 and calibration circuit board 240.
Flexible circuit board 260 is passive auxiliary element, plays conducting wire.Calibration circuit board 240 is that pressure sensor chip 140 provides
Power supply excitation.Pressure sensor chip 140 directly contacts air or coolant media in automobile, experiences the variation of its pressure, will
It is converted into voltage signal and exports to calibration circuit board 240, and voltage signal amplifies, adjusted by calibration circuit board 240, mould
Number conversion, digital operation, temperature-compensating and digital-to-analogue conversion, voltage signal are converted into corresponding 0.5~4.5VDC analog voltage
It is used after signal through being supplied to user by electrical connector 220.
Fig. 4 is the assembling figure of the air conditioning for automobiles pressure sensor 200 of the utility model second embodiment.With reference to Fig. 4 institute
Showing, the air conditioning for automobiles pressure sensor 200 in the present embodiment is mounted on measured position by the nose threads 113 of pedestal 110,
The interconnecting piece 221 of electrical connector 220 is placed in the receiving portion 111 of pedestal 110, and limiting component 250 is placed in the bottom surface of receiving portion 111
On, the interconnecting piece 221 and limiting component 250 of electrical connector 220 are pressed by the closing in position 111a of the receiving portion 111 of pedestal 110
Tightly, the pressure of substrate 130 is set at limiting component 250, and then compresses sealing ring 170 by substrate 130, and sealing ring 170 is by pedestal 110
With the pressing force between electrical connector 220, the side wall of clamp ring 210 and receiving portion 111 is locked to press and be set on substrate 130
On cushion 230, reach locking purpose.
Refering to what is shown in Fig. 4, pressure sensor chip 140 is electrically connected flexible circuit board 260, conducting wire 180 is for electrically connecting
Pressure sensor chip 140 and flexible circuit board 260 are connect, calibration circuit board 240 is electrically connected pressure by flexible circuit board 260
Sensor chip 140.Pressure sensor chip 140 is placed in groove 131 by way of gluing, i.e. pressure sensor chip
140 are connected with substrate 130 by protective glue 131b.Have benefited from the presence of groove 131, pressure sensor chip 140 is towards electric appliance
The back side (upper surface in figure) of connector 220 and the first surface (upper surface in figure) of substrate 130 are substantially concordant.Alternatively,
The pad and flexible circuit board 160 at 140 back side of pressure sensor chip are attached at the upper table of the part of the first surface of substrate 130
Face is substantially concordant.There are a notch, pressure sensor core in the part that flexible circuit board 260 is attached at the first surface of substrate 130
The pad at 140 back side of piece can be exposed by the notch and preferably can be connected to flexible circuit board 260 by conducting wire 180.
Embodiment three
Fig. 5 A, 5B are the decomposing state figures of the air conditioning for automobiles pressure sensor 300 of the utility model 3rd embodiment.With reference to
Shown in Fig. 5 A and Fig. 5 B, unlike the utility model second embodiment, the air conditioning for automobiles of the utility model 3rd embodiment
Substrate 330 included by pressure sensor 300 is plane in face of the first surface of first interface, and pressure sensor chip 140 is set
In on the first surface of substrate 330.The set-up mode of the pressure sensor chip 140 has met other particular detection pressure models
The air conditioning for automobiles pressure sensor enclosed, such as the air conditioning for automobiles pressure sensor that detection pressure limit is 0~4MPA.Substrate 330
Also there is the through-hole 331 for leading to second surface of the substrate 330 far from electrical connector 220, through-hole 331 exposes pressure sensor chip
140, through-hole 331 can be such that air or coolant media in automobile acts on pressure sensor chip 140 by through-hole 331.
Fig. 6 is the assembling figure of the air conditioning for automobiles pressure sensor of the utility model 3rd embodiment.Refering to what is shown in Fig. 6, pressure
Sensor chip 140 is set on the first surface of substrate 330 by way of gluing, pressure sensor chip 140 and base
Through-hole 331 is completely covered in the bottom surface that the first surface of plate 330 directly contacts.Pressure sensor chip 140 is electrically connected soft electricity
Road plate 260, for being electrically connected pressure sensor chip 140 and flexible circuit board 260, calibration circuit board 240 passes through conducting wire 180
Flexible circuit board 260 is electrically connected pressure sensor chip 140.
Substrate 130 or substrate 330 in above-described embodiment can be ceramic printed circuit board (PCB).Pressure sensor
Chip 140 can be silicon piezoresistive type pressure sensor chip, which is made of silicon, glass and operation chip.
Except being clearly stated in non-claimed, the sequence of herein described processing element and sequence, digital alphabet use,
Or the use of other titles, it is not intended to limit the sequence of the application process and method.Although being shown in above-mentioned disclosure by various
Example discuss it is some it is now recognized that useful utility model embodiment, but it is to be understood that, such details only plays explanation
Purpose, appended claims are not limited in the embodiment disclosed, on the contrary, claim is intended to cover and all meets the application
The amendment and equivalent combinations of embodiment spirit and scope.
The application has used particular words to describe embodiments herein.As " one embodiment ", " embodiment ",
And/or " some embodiments " means a certain feature relevant at least one embodiment of the application, structure or feature.Therefore, it answers
Emphasize and it is noted that " embodiment " or " one embodiment " that is referred to twice or repeatedly in this specification in different location or
" alternate embodiment " is not necessarily meant to refer to the same embodiment.In addition, certain in one or more embodiments of the application
Feature, structure or feature can carry out combination appropriate.
Similarly, it is noted that in order to simplify herein disclosed statement, to help real to one or more application
Apply the understanding of example, above in the description of the embodiment of the present application, sometimes by various features merger to one embodiment, attached drawing or
In descriptions thereof.But this disclosure method is not meant to mention in aspect ratio claim required for the application object
And feature it is more.In fact, the feature of embodiment will be less than whole features of the single embodiment of above-mentioned disclosure.
Although the utility model is described with reference to current specific embodiment, ordinary skill in the art
Personnel it should be appreciated that more than embodiment be intended merely to illustrate the utility model, be detached from the spirit of the present invention no
In the case of can also make various equivalent change or replacement, therefore, as long as to upper in the spirit of the utility model
State the variation of embodiment, modification will all be fallen in the range of following claims.
Claims (10)
1. a kind of air conditioning for automobiles pressure sensor, including pedestal, electrical connector, substrate, pressure sensor chip, feature exist
In the air conditioning for automobiles pressure sensor further includes limiting component, in which:
The pedestal has receiving portion, and described accommodation section has opening, and the limiting component is placed on the bottom surface of described accommodation section,
The limiting component has the supporting part of annular, and the substrate is placed on the supporting part, and the pressure sensor chip is set
In on the substrate；
The electrical connector has an interconnecting piece, and the interconnecting piece is placed in described accommodation section.
2. air conditioning for automobiles pressure sensor according to claim 1, which is characterized in that the interconnecting piece has at least one
Bayonet, the limiting component have at least one hook, and when the interconnecting piece is placed in described accommodation section, the bayonet is caught in
The hook, and interconnecting piece pressure is set on the substrate.
3. air conditioning for automobiles pressure sensor according to claim 1, which is characterized in that further include clamp ring, be set to described
Between interconnecting piece and the substrate, the side wall locking of the clamp ring and described accommodation section is set on the substrate with pressing.
4. air conditioning for automobiles pressure sensor according to claim 1, which is characterized in that the substrate connects towards the electric appliance
The first surface of head has groove, and the bottom portion of groove, which has, leads to second surface of the substrate far from the electrical connector
Through-hole, the pressure sensor chip are set in the groove, and the through-hole exposes the pressure sensor chip.
5. air conditioning for automobiles pressure sensor according to claim 1, which is characterized in that the substrate connects towards the electric appliance
The first surface of head is plane, and has the through-hole for leading to second surface of the substrate far from the electrical connector, the pressure
Sensor chip is set on the first surface, and the through-hole exposes the pressure sensor chip.
6. air conditioning for automobiles pressure sensor according to claim 4, which is characterized in that further include flexible circuit board, be sticked
In on the first surface of the substrate, the pressure sensor chip is electrically connected the flexible circuit board.
7. air conditioning for automobiles pressure sensor according to claim 4 or 5, which is characterized in that further include flexible circuit board and
Calibration circuit board, the calibration circuit board are set on the interconnecting piece of the electrical connector, and the flexible circuit board is connected to
Between the pressure sensor chip and the calibration circuit board.
8. air conditioning for automobiles pressure sensor according to claim 4, which is characterized in that the pressure sensor chip towards
The back side of the electrical connector is concordant with the first surface of the substrate.
9. air conditioning for automobiles pressure sensor according to claim 1, which is characterized in that the pedestal has from the pedestal
Bottom surface be through to the transmission through-hole of described accommodation section bottom surface.
10. air conditioning for automobiles pressure sensor according to claim 1, which is characterized in that the substrate and described accommodation section
Bottom surface between be equipped with sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822030157.5U CN209166694U (en) | 2018-12-05 | 2018-12-05 | Air conditioning for automobiles pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822030157.5U CN209166694U (en) | 2018-12-05 | 2018-12-05 | Air conditioning for automobiles pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209166694U true CN209166694U (en) | 2019-07-26 |
Family
ID=67342034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822030157.5U Active CN209166694U (en) | 2018-12-05 | 2018-12-05 | Air conditioning for automobiles pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209166694U (en) |
-
2018
- 2018-12-05 CN CN201822030157.5U patent/CN209166694U/en active Active
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