CN205749546U - The head structure-improved of ABS wheel speed sensors - Google Patents
The head structure-improved of ABS wheel speed sensors Download PDFInfo
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- CN205749546U CN205749546U CN201620679416.5U CN201620679416U CN205749546U CN 205749546 U CN205749546 U CN 205749546U CN 201620679416 U CN201620679416 U CN 201620679416U CN 205749546 U CN205749546 U CN 205749546U
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- sensor
- cervical region
- wheel speed
- speed sensors
- sleeve
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- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
This utility model relates to vehicle ABS anti-lock braking system technical field, in order to solve the technical problem that in prior art, ABS wheel speed sensors sealing is poor, yields is low, provide the head structure-improved of a kind of ABS wheel speed sensors, chip is previously charged into plastic skeleton, then plastic skeleton is put in sleeve and carry out local injection molding packaging again, thus can avoid high temperature, high pressure, the high flow rate direct injury to chip, improve conforming product rate；The plastic seal that on sensor cervical region, injection mo(u)lding is formed, will patch gap sealing between sensor plug-in part assembly and sensor cervical region, will patch gap sealing, substantially increase sealing property between sleeve and sensor cervical region.
Description
Technical field
This utility model relates to vehicle ABS anti-lock braking system technical field, particularly relates to ABS anti-skid braking system
Wheel speed sensors in system.
Background technology
ABS anti-lock braking system is a kind of vehicle safety control system with advantage of waiting indefinitely anti-skidding, anti-lock.Can install
On the automobile of any band water brake.The important composition parts wheel speed sensors of ABS anti-lock braking system measures car in real time
Wheel rotating speed and pass through electronic signal transmission to ABS electronic control unit, electronic control unit, these signals are analyzed also
Calculated, the slip rate of control wheel, thus security reliability when improving automobile brake.
Being arranged in use in automotive hub due to wheel speed sensors, the corrosivity sewage such as saline on road can enter
Inside wheel speed sensors, cause the damage of chip.Therefore, the makeies of wheel speed sensors also have sealing knot in actively design
The wheel speed sensors of structure.The sealing structure of wheel speed sensors in the market is to use integrated injection molding to become sensor body
Type, owing to melted plastics temperature is higher, the high flow rate of high temperature, high pressure and molten plastic in mold cavity can make chip be subject to
Bigger stress impact, thus cause wafer damage, the qualification rate of product reduces.
Summary of the invention
The purpose of this utility model is the ABS wheel speed sensors providing a kind of sealing property excellent.
For reaching above-mentioned purpose, this utility model is achieved by the following technical solution:
The head structure-improved of ABS wheel speed sensors, including sensor body and head, described head mainly by sleeve,
Sensor cervical region, sensor plug-in part assembly and sensor fixing assembly composition, described sensor body is mainly by plastic skeleton
Forming with chip, described chip is placed in described plastic skeleton, and described plastic skeleton is placed in described sleeve；Described sensor connects
Plug in component inserts one end of described sensor cervical region, and described sleeve inserts the other end of described sensor cervical region；Described sensing
Device cervical region is coated with one layer of plastic seal, and described plastic seal is by described sensor plug-in part assembly and described sensor neck
Patch gap sealing between portion, described plastic seal by between described sleeve and described sensor cervical region to patch gap close
Envelope.
Further, described sleeve is placed on the outer wall of described sensor part and is provided with a few sawtooth, will patch
Good sleeve, sensor cervical region and sensor plug-in part assembly are put into and are carried out injection molding packaging in injection mold, a few described sawtooth
Meet high temperature melt and form a circle sealing ring.
Further, the height of described sawtooth is 0.5mm to 1.0mm.
Further, the number of turns of described sawtooth is four circles.
Further, described sleeve is positioned at the straight formation one circle card that caves inward with it outside described sensor cervical region
Groove, is provided with a circle rubber ring in described draw-in groove.
Further, described sensor plug-in part assembly includes sensor plug-in part shell and is placed in sensor plug-in part
Wiring pin in shell；Described sensor fixing assembly includes sensor fixed disk and lining, in described sensor fixed disk
Being provided with installing hole, described lining is positioned in installing hole.
Compared with prior art, this utility model is that chip is previously charged into plastic skeleton, is then put into by plastic skeleton
Sleeve carries out local injection molding packaging again, thus can avoid high temperature, high pressure, the high flow rate direct injury to chip, improve
Conforming product rate；And the gap that patches that sensor is existed by the plastic cement sealing member being molded formation directly seals, and is greatly increased
The waterproof effect of sensor.Because of sealing ring and the plastic cement sealing member of injection high temperature melt molding between sleeve and sensor cervical region
Combination forms double sealing effect.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme in this utility model embodiment, required in embodiment being described below
Accompanying drawing to be used is briefly described.
Fig. 1 is the structural representation before the ABS wheel speed sensors disclosed in this utility model embodiment one is not molded；
Fig. 2 is that the ABS wheel speed sensors disclosed in this utility model embodiment one structure after injection molding packaging is shown
It is intended to;
Fig. 3 is the sectional view before the ABS wheel speed sensors disclosed in this utility model embodiment two is not molded.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely describe.
Embodiment one
From figure 1 it appears that ABS wheel speed sensors includes sensor body 1 and head, head is mainly by sleeve 2, biography
Sensor cervical region 3, sensor plug-in part assembly 4 and sensor fixing assembly 5 form.Sensor body 1 is main by plastic skeleton 1a
Forming with chip 1b, chip is placed in plastic skeleton, and plastic skeleton is placed in sleeve 2；Sensor plug-in part assembly 4 inserts sensing
One end of device cervical region 3, sleeve 2 inserts the other end of sensor cervical region 3.Sensor plug-in part assembly 4 includes sensor plug-in part
Shell 4a and the wiring pin 4b being placed in sensor plug-in part shell, wiring pin includes that signal end pin and power end draw
Foot；Sensor fixing assembly includes sensor fixed disk 5a and lining 5b, is provided with installing hole, lining position in sensor fixed disk
In installing hole of counting.Existing between sensor plug-in part assembly 4 and sensor cervical region 3 and patch gap, plastic seal will set
Exist between cylinder 2 and sensor cervical region 3 and patch gap, owing to patching the existence in gap, the corrosivity sewage such as the saline on road surface
Gap can enter in sensor body from patching, damage chip, be therefore coated with one layer of plastic seal 6 at sensor cervical region 3
(seeing Fig. 2), with by the gap sealing that patches between sensor plug-in part assembly 4 and sensor cervical region 3, plastic seal will set
Cylinder 2 and sensor cervical region 3 between patch gap sealing.
It is that chip is previously charged into plastic skeleton by chip this utility model, then by sleeve 2, sensor cervical region 3 and sensing
Device connector assembly 4 patches, and finally the sleeve 2 patched, sensor cervical region 3 and sensor plug-in part assembly 4 is put into note
Mould carries out injection molding packaging.Owing to mould existing high temperature, therefore when mold cavity and design, encapsulate just for needs
Position be designed, during mold closing, chip is not in mold cavity, it is to avoid high temperature, high pressure, the high flow rate directly wound to chip
Evil.
Embodiment two
This utility model uses the mode of injection molding packaging to carry out waterproof sealing, it is also possible to be placed in the part of sensor at sleeve
And designing a sealing ring between sensor cervical region, sealing ring forms a secondary seal together with plastic seal.Sealing ring
Arrange can be in the following ways: be placed on the outer wall of Sensor section at sleeve 2 and a few sawtooth 2a(is set sees Fig. 3),
When the sleeve patched 2, sensor cervical region 3 and sensor plug-in part assembly 4 are put into injection mold carries out injection molding packaging time,
A few sawtooth are met high temperature melt and are formed a circle sealing ring.
The number of turns of sawtooth may be configured as four circles, and the height of sawtooth is 0.8mm, and these data are only a kind of embodiment, sawtooth
The number of turns and tooth depth should determine according to the size of sensor cervical region and sleeve.
Certainly, sensor plug-in part shell is placed between the part of sensor cervical region and sensor cervical region and can also use together
The mode of sample designs a sealing ring.
Embodiment three
The installation of ABS wheel speed sensors needs perforate on wheel hub, in corrosivity sewage access aperture, gets rid of and the most always corrodes
Wheel hub, prevents trouble before it happens, and needs to arrange sealing structure between ABS wheel speed sensors and wheel hub hole wall.Sleeve 2 is positioned at sensor
The straight formation one circle draw-in groove that caves inward with it outside cervical region 3, is provided with a circle rubber ring 2b in draw-in groove, rubber ring 2b is at sleeve
And formed between wheel hub hole wall and seal, it is possible to be effectively prevented in corrosivity sewage access aperture.
Wheel speed sensors described in embodiment one, embodiment two and embodiment three all can by 1000 hours 85 ±
2 ° of C, and the experiment under 85 ± 5% damp conditions, and the salt mist experiment of 1000 hours.
Multiple amendment to these embodiments will be apparent from, herein for those skilled in the art
Defined General Principle can be real in other embodiments in the case of without departing from spirit or scope of the present utility model
Existing.Therefore, this utility model is not intended to be limited to the embodiments shown herein, and is to fit to disclosed herein
Principle and the consistent the widest scope of features of novelty.
Claims (6)
- The head structure-improved of 1.ABS wheel speed sensors, including sensor body and head, described head is mainly by sleeve, biography Sensor cervical region, sensor plug-in part assembly and sensor fixing assembly composition, described sensor body mainly by plastic skeleton and Chip forms, and described chip is placed in described plastic skeleton, and described plastic skeleton is placed in described sleeve；Described sensor patches Part assembly inserts one end of described sensor cervical region, and described sleeve inserts the other end of described sensor cervical region, it is characterised in that Described sensor cervical region is coated with one layer of plastic seal, described plastic seal by described sensor plug-in part assembly with described Patching gap sealing between sensor cervical region, described plastic seal is by connecing between described sleeve and described sensor cervical region Insert gap sealing.
- The head structure-improved of ABS wheel speed sensors the most according to claim 1, it is characterised in that described sleeve is placed in It is provided with a few sawtooth on the outer wall of described sensor part, the sleeve patched, sensor cervical region and sensor are patched Part assembly is put into and is carried out injection molding packaging in injection mold, and a few described sawtooth are met high temperature melt and formed a circle sealing ring.
- The head structure-improved of ABS wheel speed sensors the most according to claim 2, it is characterised in that the height of described sawtooth Degree is 0.5mm to 1.0mm.
- The head structure-improved of ABS wheel speed sensors the most according to claim 3, it is characterised in that the circle of described sawtooth Number is four circles.
- 5. according to the head structure-improved of the ABS wheel speed sensors described in any one in claim 1-4, it is characterised in that Described sleeve is positioned at the straight formation one circle draw-in groove that caves inward with it outside described sensor cervical region, is provided with one in described draw-in groove Circle rubber ring.
- The head structure-improved of ABS wheel speed sensors the most according to claim 5, it is characterised in that described sensor connects Plug in component includes sensor plug-in part shell and the wiring pin being placed in sensor plug-in part shell；Described sensor is fixed Assembly includes sensor fixed disk and lining, is provided with installing hole in described sensor fixed disk, and described lining is positioned at installing hole In.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620679416.5U CN205749546U (en) | 2016-07-01 | 2016-07-01 | The head structure-improved of ABS wheel speed sensors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620679416.5U CN205749546U (en) | 2016-07-01 | 2016-07-01 | The head structure-improved of ABS wheel speed sensors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205749546U true CN205749546U (en) | 2016-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620679416.5U Active CN205749546U (en) | 2016-07-01 | 2016-07-01 | The head structure-improved of ABS wheel speed sensors |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112180115A (en) * | 2019-07-02 | 2021-01-05 | 陆博汽车电子（曲阜）有限公司 | Magnetoelectric wheel speed sensor |
| CN112693123A (en) * | 2021-02-04 | 2021-04-23 | 绵阳易塑科技有限公司 | Integral manufacturing method of sealing product |
-
2016
- 2016-07-01 CN CN201620679416.5U patent/CN205749546U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112180115A (en) * | 2019-07-02 | 2021-01-05 | 陆博汽车电子（曲阜）有限公司 | Magnetoelectric wheel speed sensor |
| CN112693123A (en) * | 2021-02-04 | 2021-04-23 | 绵阳易塑科技有限公司 | Integral manufacturing method of sealing product |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |