CN205067518U - Rotation speed sensor - Google Patents
Rotation speed sensor Download PDFInfo
- Publication number
- CN205067518U CN205067518U CN201520783137.9U CN201520783137U CN205067518U CN 205067518 U CN205067518 U CN 205067518U CN 201520783137 U CN201520783137 U CN 201520783137U CN 205067518 U CN205067518 U CN 205067518U
- Authority
- CN
- China
- Prior art keywords
- assembly
- coil former
- stainless steel
- winding
- injection molding
- 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.)
- Expired - Fee Related
Links
- 238000001746 injection moulding Methods 0.000 claims abstract description 23
- 238000004804 winding Methods 0.000 claims abstract description 23
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 19
- 239000010935 stainless steel Substances 0.000 claims abstract description 19
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 12
- 239000010959 steel Substances 0.000 claims abstract description 12
- 239000000523 sample Substances 0.000 claims description 9
- 238000003754 machining Methods 0.000 claims description 4
- 239000010963 304 stainless steel Substances 0.000 claims description 3
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000003801 milling Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 229920003223 poly(pyromellitimide-1,4-diphenyl ether) Polymers 0.000 claims description 2
- 230000007797 corrosion Effects 0.000 abstract description 6
- 238000005260 corrosion Methods 0.000 abstract description 6
- 238000003466 welding Methods 0.000 abstract description 5
- 239000002184 metal Substances 0.000 abstract description 3
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- 239000004642 Polyimide Substances 0.000 abstract description 2
- 229920001721 polyimide Polymers 0.000 abstract description 2
- 238000005538 encapsulation Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000007493 shaping process Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 238000009713 electroplating Methods 0.000 description 2
- 239000004831 Hot glue Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002739 metals Chemical group 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
Landscapes
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model provides a rotation speed sensor. Belong to magneto -electric speedtransmitter technical field. It solves the whole encapsulation of present metal casing to have problem with high costs, that assembly process is complicated, corrosion resistance is poor. Its leading features is: coil former, inserted sheet, end terminal and magnet steel pass through injection moulding and constitute the coil former assembly, the enameled wire is around adorning on the coil former assembly, and the outer winding of enameled wire has the polyimide sticky tape, constitutes the winding assembly, there is winding assembly injection molding body outside the winding assembly, winding assembly and injection molding body constitution organism assembly, still include the stainless steel housing of suit outside the organism assembly, organism assembly, stainless steel housing and pencil assembly are formed wholly by the injection molding body, and organism assembly and stainless steel housing are pressed and is joined in marriage, organism assembly and the welding of pencil assembly. The utility model has the characteristics of the magnetic conduction is effectual, corrosion resistance good, the difficult damage of outward appearance, with low costs, assembly process is simple, distinguishable lower rotational speed, mainly used measures auto wheel slew velocity.
Description
Technical field
The utility model belongs to magnetoelectric velocity transducer technical field, is specifically related to a kind of Novel automobile wheel speed sensor.
Background technology
At present, the overall package of the magnetoelectric speed sensor in motor car engine generally adopts the mode of metal shell to encapsulate, and its weak point is that the cost of metal is high, work flow long (needing machining, electroplating processes), outward appearance easy damaged, corrosion-resistant etc.Conventional magnetoelectric velocity transducer comprises by cover, weldering circle, housing and hexagonal nut by the shaping housing assembly of ratio-frequency welding, the coil assembly shaping by coil former, enamel covered wire coiling, and pole plate, magnet steel, pole shoe, inserted sheet, terminal assembly, packing ring, bundle assembly.Wherein, bundle assembly welding in the circuit board, fixed by tank glue, main body assembly is shaping by welding, encapsulating by housing assembly, coil assembly, pole plate, magnet steel, pole shoe and bundle assembly, its weak point is housing processing difficulties, assembly technology difficulty is large, flow process is loaded down with trivial details, cost high (part of needs is many).
Summary of the invention
The purpose of this utility model provides a kind of outward appearance (enclosing) part to be that stainless steel stamping parts carrys out alternative metals part for above-mentioned weak point exactly, the process of low-pressure injection molding is utilized to replace pressing the process of flange, have that magnetic conduction is effective, good corrosion resistance, outward appearance not easy damaged, cost is low, assembly technology is simple, and the amplitude of output signal is high, can identify more slow-revving speed probe.
Technical solution of the present utility model is: a kind of speed probe, comprise inserted sheet, pole shoe, magnet steel, coil former, enameled wire and bundle assembly, it is characterized in that: described coil former, inserted sheet, pole shoe and magnet steel are by injection mo(u)lding composition coil former assembly; Described enameled wire installs around on coil former assembly; Outside the described coil former assembly being wound with enameled wire, be wound with Kapton Tape, form winding assembly; Outside winding assembly, have winding assembly injection molding body, winding assembly and injection molding body form block assembly; Also comprise the stainless steel case be sleeved on outside block assembly, block assembly, stainless steel case and bundle assembly form entirety by injection molding body, and block assembly and stainless steel case are press-fitted, and block assembly welds with bundle assembly.
In block assembly described in technical solution of the present utility model, pole shoe lower end is concordant with winding assembly injection molding body lower end through Milling Machining.
In coil former assembly described in technical solution of the present utility model, magnet steel is positioned at the middle part of coil former.
Stainless steel case described in technical solution of the present utility model is adopt hot-drawn to prolong the stainless steel case of technique hot-drawn by not magnetic conduction 304 stainless steel.
The utility model adopts integral plastics moulding due to structural member, has abandoned traditional metalwork, overcomes the deficiency that metalwork cost is high, work flow grows (machine work, electroplating processes), outward appearance easy damaged, corrosion-resistant.Adopt Shooting Technique additionally by sensor internal, overcome that assembly technology difficulty is large, flow process is loaded down with trivial details, the deficiency of cost high (part of needs is many).The utility model has good corrosion resistance, outward appearance not easy damaged, cost is low and vibration resistance ability is strong feature.The utility model can identify the slow-speed of revolution, and overcome the defect of traditional speed probe threshold voltage, the utility model is mainly used in the speed of measured automobiles rotation of wheel.
Accompanying drawing explanation
Fig. 1 is contour structures diagrammatic cross-section of the present utility model.
Fig. 2 is block assembly structural profile schematic diagram of the present utility model.
Fig. 3 is winding assembly structure diagrammatic cross-section of the present utility model.
Fig. 4 is coil former assembly structure diagrammatic cross-section of the present utility model.
Fig. 5 is coil former assembly structure decomposing schematic representation of the present utility model.
In figure: 1-block assembly, 2-stainless steel case, 3-injection molding body, after 4-injection moulding, 5-. winding assembly, 6-coil former assembly, 7-inserted sheet, 8-magnet steel, 9-pole shoe.
Embodiment
Below in conjunction with accompanying drawing, the utility model will be further described.
As shown in Figure 1, Figure 2, Figure 3 shows.The utility model speed probe is made up of block assembly 1, stainless steel case 2, injection molding body 3.Wherein, have winding assembly injection molding body outside winding assembly 5, winding assembly 5 and injection molding body form block assembly 1.Block assembly 1 is by winding assembly 5 by after injection moulding 4, and consist of the redundance of the mode mill off pole shoe of machining, pole shoe 9 lower end is concordant with winding assembly injection molding body lower end.Block assembly 1 and stainless steel case 2 are press-fitted, and block assembly 1 welds with bundle assembly, and block assembly 1, stainless steel case 2 and bundle assembly integral type are injection molded.Stainless steel case 2 material is not magnetic conduction 304 stainless steel, adopts hot-drawn to prolong technique hot-drawn and forms.
As shown in Figure 4.Winding assembly 5 by after enameled wire, enameled wire welding, being wound around polyimide insulative adhesive tape, solder joint gluing, adopts low-pressure injection molding to form by coil former assembly 6.Low-pressure injection molding material adopts high-temperature-resistance polyolefin hot melt adhesive.
As shown in Figure 5.Coil former assembly 6 is consisted of injection moulding inserted sheet 7, magnet steel 8, pole shoe 9 and coil former, and wherein magnet steel 8 is positioned at the middle part of coil former.
Claims (4)
1. a speed probe, comprise inserted sheet (7), pole shoe (9), magnet steel (8), coil former, enameled wire and bundle assembly, it is characterized in that: described coil former, inserted sheet (7), pole shoe (9) and magnet steel (8) are by injection mo(u)lding composition coil former assembly (6); Described enameled wire installs around on coil former assembly (6); Outside the described coil former assembly being wound with enameled wire, be wound with Kapton Tape, form winding assembly (5); Outside winding assembly (5), have winding assembly injection molding body, winding assembly (5) and injection molding body form block assembly (1); Also comprise and be sleeved on block assembly (1) stainless steel case (2) outward, block assembly (1), stainless steel case (2) and bundle assembly form entirety by injection molding body (3), block assembly (1) and stainless steel case (2) are press-fitted, and block assembly (1) welds with bundle assembly.
2. a kind of speed probe according to claim 1, is characterized in that: in described block assembly (1), pole shoe (9) lower end is concordant with winding assembly injection molding body lower end through Milling Machining.
3. a kind of speed probe according to claim 1 and 2, is characterized in that: in described coil former assembly (6), magnet steel (8) is positioned at the middle part of coil former.
4. a kind of speed probe according to claim 1 and 2, is characterized in that: described stainless steel case (2) is adopt hot-drawn to prolong the stainless steel case of technique hot-drawn by not magnetic conduction 304 stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520783137.9U CN205067518U (en) | 2015-10-10 | 2015-10-10 | Rotation speed sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520783137.9U CN205067518U (en) | 2015-10-10 | 2015-10-10 | Rotation speed sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205067518U true CN205067518U (en) | 2016-03-02 |
Family
ID=55394055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520783137.9U Expired - Fee Related CN205067518U (en) | 2015-10-10 | 2015-10-10 | Rotation speed sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205067518U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406820A (en) * | 2018-12-12 | 2019-03-01 | 张波 | A kind of small-sized A/EBS sensor |
-
2015
- 2015-10-10 CN CN201520783137.9U patent/CN205067518U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406820A (en) * | 2018-12-12 | 2019-03-01 | 张波 | A kind of small-sized A/EBS sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 441000 Jiangshan South Road Venture Center, Xiangyang High-tech Zone, Hubei Province Patentee after: Dongfeng Power Drive System Co.,Ltd. Address before: 441004 No. 227 Daqing East Road, Xiangfan City, Hubei Province Patentee before: DONGFENG AUTOMOBILE ELECTRONICS Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160302 |