CN206280149U - A kind of mounting seat of knock sensor for automobile engine - Google Patents
A kind of mounting seat of knock sensor for automobile engine Download PDFInfo
- Publication number
- CN206280149U CN206280149U CN201621241837.6U CN201621241837U CN206280149U CN 206280149 U CN206280149 U CN 206280149U CN 201621241837 U CN201621241837 U CN 201621241837U CN 206280149 U CN206280149 U CN 206280149U
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- CN
- China
- Prior art keywords
- ring
- mounting seat
- automobile engine
- knock sensor
- threaded portion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Testing Of Engines (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The utility model discloses a kind of mounting seat of knock sensor for automobile engine, including body and back-up ring, the body middle part is provided with circular hole, the back-up ring is located at body bottom portion, the back-up ring and this body by integral forming, the first threaded portion of the bodies top outside, outer body below first threaded portion is also evenly equipped with four pieces of blocks, the block and this body by integral forming, the chamfered setting in body inner side at the circular hole two ends, the back-up ring outside is provided with the second threaded portion, the body and back-up ring junction are set in rounding, the mounting seat of knock sensor for automobile engine of the present utility model is easily assembled, can keep firmly installing, with limit function.
Description
Technical field
The utility model is related to a kind of mounting seat of knock sensor for automobile engine.
Background technology
Detonation sensor is arranged in the middle of engine cylinder-body and is arranged between 2 cylinders and 3 cylinders by taking four-cylinder as an example, or 1,2
One in the middle of cylinder, one in the middle of 3,4 cylinders.Its effect is, for determining engine shake degree, to be used for when engine produces pinking
Adjustment ignition advance angle.Detonation sensor has many kinds, wherein surely belonging to magnetostriction type detonation sensor using earliest, it leads
To be made up of magnetic core, permanent magnet and induction coil etc..When body vibration, the vibrated skew of magnetic core makes the magnetic in induction coil
Flux is changed, and induced electromotive force is produced in induction coil.Other species such as piezoelectric ceramic type, when engine has shake
When inside ceramics be squeezed generation one electric signal because this electric signal is very weak the company of general detonation sensor
All wrapped up with shielding line in wiring.Wherein at most, it is typically mounted on engine body the application of piezoelectric type resonance type sensor
Portion, the mechanical oscillation produced during using piezo-electric effect pinking are changed into signal voltage.Vibration frequency when pinking is produced（About
6000Hz or so）When intrinsic frequency with piezo-electric effect sensor itself is consistent, that is, produce covibration.At this moment sensor can be defeated
Go out a detonation signal voltage very high and deliver to ECU, ECU corrects the duration of ignition in time, it is to avoid the generation of pinking.Low grade fires
Oil, the combustion knock that the reason such as too early of lighting a fire causes can cause engine damage.The effect of detonation sensor is by engine
Pinking passes to Electronic Control mould as electronic signals, adjusts ignition timing to prevent further pinking as control module
Important evidence.Detonation sensor is typically all piezoelectric ceramic type, when engine has shake inside ceramics be squeezed product
A raw electric signal.Detonation sensor is placed in the diverse location of engine block or cylinder.When vibration or engine knock occur, it is produced
A raw small voltage peak value, engine knock or vibration are bigger.It is bigger that detonation sensor produces main peak value.Certain frequency high is shown to be quick-fried
Shake or engine knock, detonation sensor are usually designed to measure the frequency of 5 to 15 kilohertz ranges.When control unit receives these frequencies
When, computer rebuilds positive ignition timing, and to prevent to continue pinking, detonation sensor is generally very durable.So sensor only understand because
Itself fails and damages.
The mounting seat of current existing knock sensor for automobile engine is not easy assembling, it is impossible to enough to keep firmly installing,
Without limit function.
The content of the invention
In view of this, the utility model purpose is to provide a kind of easily assembling, can keep firmly installing, with spacing work(
The mounting seat of the knock sensor for automobile engine of energy.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is：
A kind of mounting seat of knock sensor for automobile engine, including body and back-up ring, the body middle part are provided with circle
Hole, the back-up ring is located at body bottom portion, the back-up ring and this body by integral forming, the first threaded portion of the bodies top outside, institute
State the outer body below the first threaded portion and be also evenly equipped with four pieces of blocks, the block and this body by integral forming, the circular hole two
The chamfered setting in body inner side at end, the back-up ring outside is provided with the second threaded portion, and the body and back-up ring junction are in
Fillet is set.
Further, the body is stainless steel body so that body is corrosion-resistant, and structural strength is high, long service life.
Further, a diameter of 6.4mm of the circular hole, can be with installation axle in circular hole.
Further, the external diameter of the body is 9.6mm, and body and back-up ring are integrally formed can be firm with holding structure.
Further, the external diameter of the back-up ring is 18mm, and body and back-up ring are integrally formed can be firm with holding structure.
The utility model has the technical effect that following aspect：Chamfered on the inside of the body at circular hole two ends setting is set
Put so that axle is easily assembled into circular hole, the second threaded portion outside the first threaded portion and back-up ring on body can keep installing
Firmly；The outer body of setting is also evenly equipped with four pieces of blocks, can reach with limit function, can limit and the first threaded portion
The position of the part of installation.
Brief description of the drawings
Fig. 1 is a kind of top view of the mounting seat of knock sensor for automobile engine of the utility model.
Fig. 2 be Fig. 1 along E-E to profile.
Fig. 3 is the partial enlarged drawing at A in Fig. 2.
Specific embodiment
Below in conjunction with accompanying drawing, specific embodiment of the present utility model is described in further detail, so that the utility model skill
Art scheme is more readily understood and grasps.
A kind of mounting seat of knock sensor for automobile engine, including body 1 and back-up ring 2, the middle part of the body 1 are provided with
Circular hole 3, the back-up ring 2 is located at the bottom of body 1, and the back-up ring 2 is integrally formed with body 1, the first spiral shell of top outer of the body 1
Line portion 4, the outside of body 1 of the lower section of first threaded portion 4 is also evenly equipped with four pieces of blocks 5, the block 5 and the one of body 1 into
Type, the chamfered setting in the inner side of body 1 at the two ends of the circular hole 3, the chamfer dimesion of the inside front of body 1 is 0.3*45 °, body 1
The chamfer dimesion of lower section is 0.1*30 °, and the outside of the back-up ring 2 is provided with the second threaded portion 6, the body 1 and the junction of back-up ring 2
Set in rounding, the size of fillet is R0.2.
The body 1 is stainless steel body.A diameter of 6.4mm of the circular hole 3.The external diameter of the body 1 is 9.6mm.
The external diameter of the back-up ring 2 is 18mm.
When mounted, the bottom of body 1 can be installed by second threaded portion 6 in the outside of back-up ring 2, and the top of body 1 leads to
The first threaded portion 4 is crossed to be installed.Body uses 316 stainless steel moulding by casting, and surface is processed by deburring
Certainly, it is more than representative instance of the present utility model, in addition, the utility model can also have other various
The technical scheme that specific embodiment, all use equivalents or equivalent transformation are formed, all falls within the utility model and claims
Within the scope of.
Claims (5)
1. a kind of mounting seat of knock sensor for automobile engine, it is characterised in that：Including body and back-up ring, the body middle part
Circular hole is provided with, the back-up ring is located at body bottom portion, the back-up ring and this body by integral forming, the first spiral shell of the bodies top outside
Line portion, the outer body below first threaded portion is also evenly equipped with four pieces of blocks, the block and this body by integral forming, described
The chamfered setting in body inner side at circular hole two ends, the back-up ring outside is provided with the second threaded portion, and the body and back-up ring are connected
Place is set in rounding.
2. the mounting seat of knock sensor for automobile engine according to claim 1, it is characterised in that：The body is not for
Rust steel body.
3. the mounting seat of knock sensor for automobile engine according to claim 2, it is characterised in that：The circular hole it is straight
Footpath is 6.4mm.
4. the mounting seat of knock sensor for automobile engine according to claim 3, it is characterised in that：Outside the body
Footpath is 9.6mm.
5. the mounting seat of knock sensor for automobile engine according to claim 4, it is characterised in that：Outside the back-up ring
Footpath is 18mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621241837.6U CN206280149U (en) | 2016-11-21 | 2016-11-21 | A kind of mounting seat of knock sensor for automobile engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621241837.6U CN206280149U (en) | 2016-11-21 | 2016-11-21 | A kind of mounting seat of knock sensor for automobile engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206280149U true CN206280149U (en) | 2017-06-27 |
Family
ID=59082655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621241837.6U Active CN206280149U (en) | 2016-11-21 | 2016-11-21 | A kind of mounting seat of knock sensor for automobile engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206280149U (en) |
-
2016
- 2016-11-21 CN CN201621241837.6U patent/CN206280149U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |