CN205539038U - Hall speedtransmitter - Google Patents
Hall speedtransmitter Download PDFInfo
- Publication number
- CN205539038U CN205539038U CN201620099950.9U CN201620099950U CN205539038U CN 205539038 U CN205539038 U CN 205539038U CN 201620099950 U CN201620099950 U CN 201620099950U CN 205539038 U CN205539038 U CN 205539038U
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- China
- Prior art keywords
- hall
- pcb board
- speed sensor
- metal body
- opening
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Abstract
The utility model discloses a hall speedtransmitter, including hall IC, permanent magnetism block, position sleeve, PCB board and non - metal core, be equipped with in the non - metal core and hold the chamber, non - metal core's one end be equipped with with the opening that holds the chamber intercommunication, hold in the chamber to set up to the opening direction by interior consecutively hall IC, position sleeve, permanent magnetism block and PCB board, non - metal core's outer wall and being close to hall IC's one end is all wrapped up in and is equipped with metal coat. Be equipped with on non - metal core's the inner wall with the location spout of the side marginal facies adaptation of PCB board. The location spout deviates from it is equipped with the draw -in groove to hold chamber open -ended one end, be close to on the PCB board holding chamber open -ended one end and being equipped with bellied card strip, the draw -in groove forms interference fit with the card strip. This hall speedtransmitter can prevent effectively that the short circuit problem from taking place and better, the more stable characteristics of performance.
Description
Technical field
This utility model relates to sensor technical field, particularly to a kind of hall speed sensor.
Background technology
Hall speed sensor is a kind of magnetoelectric transducer based on Hall effect, have high to Magnetic susceptibility,
Stable output signal, frequency response are high, anti-electromagnetic interference capability strong, simple in construction, the feature such as easy to use.
It is widely applied at present and leads at high-speed railway locomotive, city railway vehicle, electric automobile, new-energy automobile etc.
In the trailer system in territory and brakes.It addition, hall speed sensor is also commonly used as low-voltage alternating-current motor
Encoder.But, Hall element is easily subject to the impact of external magnetic field and produces rub-out signal, and above-mentioned
Trailer system, the environment such as brakes can produce again magnetic field, therefore with the Hall speed of Metal shielding shell
The reliability of degree sensor is higher, but in actual applications, such hall speed sensor often can occur because of
Induced inside body circuit contacts and the problem of short circuit with Metal shielding shell.
Summary of the invention
Based on this, the purpose of this utility model is to overcome the defect of prior art, it is provided that one can be effective
Prevent short circuit problem from occurring and more excellent performance, more stable hall speed sensor.
Its technical scheme is as follows:
A kind of hall speed sensor, including Hall IC, permanent magnets, positioning sleeve, pcb board and non-metal body,
Being provided with receiving chamber in non-metal body, one end of non-metal body is provided with and accommodates the opening that chamber connects, and accommodates
Chamber is arranged described Hall IC, positioning sleeve, permanent magnets and pcb board by interior to opening direction with being sequentially connected, non-
The outer wall of metal master and one end of close described Hall IC are all wrapped with metal-coating.
Wherein in an embodiment, the inwall of described non-metal body is provided with and the side of described pcb board
The positioning runner that edge is suitable.
Wherein in an embodiment, described positioning runner deviates from one end of described receiving chamber opening and is provided with draw-in groove,
On described pcb board, the one end near described receiving chamber opening is provided with protruding card article, and draw-in groove and card article were formed
It is full of cooperation.
Wherein in an embodiment, the quantity of described Hall IC is two, and described positioning runner is non-with described
The longitudinal cross section crossing axial line of metal master forms predetermined angle, and this predetermined angle is used for making described in two suddenly
The spacing of you IC matches with tooth pitch on target pulse gear.
Wherein in an embodiment, described positioning sleeve is set in permanent magnets, and the sensitive surface of Hall IC is arranged
On the end face of positioning sleeve and be positioned at face, the South Pole or the north pole face of permanent magnets, near described receiving chamber on pcb board
The one end remained silent is connected with north pole face or the face, the South Pole of permanent magnets, and the pin of Hall IC is through or around positioning sleeve
It is electrically connected with pcb board.
Wherein in an embodiment, the quantity of described Hall IC is two, the sense of two described Hall IC
Face is answered to be laid on the end face of described positioning sleeve and just face, the South Pole or north pole face to described permanent magnets.
Wherein in an embodiment, on described pcb board, the one end near described receiving chamber opening is provided with cable,
The cable opening from described receiving chamber stretches out.
Wherein in an embodiment, one end of described non-metal body opening is provided with fixing ears, fixing double
Ear is provided with two connecting holes run through, and connection hole is wrapped with metal lining.
Wherein in an embodiment, the outer wall of described non-metal body is arranged with " o " RunddichtringO, " o "
RunddichtringO is near described fixing ears.
Wherein in an embodiment, hall speed sensor also includes the opening phase with described non-metal body
Adaptive capping, capping is provided with perforation.
Advantage or principle to preceding solution illustrate below:
In above-mentioned hall speed sensor, metal-coating is for shielding the signal of outside, Hall IC, permanent magnetism
Block, positioning sleeve, pcb board are all disposed within the receiving intracavity of non-metal body, and on the one hand this non-metal body is used for
The inductor components such as receiving and fixing Hall IC, permanent magnets, positioning sleeve, pcb board, on the other hand use
In isolating metal overcoat, prevent metal-coating from touching the Hall IC of inside, permanent magnets, positioning sleeve, PCB
The inductor components such as plate, thus prevent the generation of short circuit problem.Therefore having property of this hall speed sensor
Feature that can be more excellent, more stable.
Accompanying drawing explanation
Fig. 1 is the structural representation of the hall speed sensor described in this utility model embodiment；
Fig. 2 is the schematic cross-section crossing axial line that the hall speed sensor shown in Fig. 1 is longitudinal；
Fig. 3 is the exploded perspective view of the hall speed sensor described in this utility model embodiment；
Fig. 4 is the structural representation of the shell described in this utility model embodiment；
Fig. 5 is the end view of the shell described in this utility model embodiment.
Description of reference numerals:
1, Hall IC, 2, positioning sleeve, the 21, first draw-in groove, the 22, second draw-in groove, 3, permanent magnets, 4,
Pcb board, 41, card article, 5, cable, 6, " o " RunddichtringO, 7, shell, 71, metal-coating, 72,
Non-metal body, 721, fixing ears, 722, connecting hole, 723, metal lining, 73, accommodate chamber, 74,
Positioning runner, the 741, the 3rd draw-in groove, 8, capping, θ, predetermined angular.
Detailed description of the invention
Below embodiment of the present utility model is described in detail:
As Figure 1-3, for a kind of hall speed sensor, it includes Hall IC 1, permanent magnets 3, location
Set 2, pcb board 4 and shell 7, be provided with receiving chamber 73, by interior to openings in receiving chamber 73 in shell 7
To setting gradually Hall IC 1, positioning sleeve 2, permanent magnets 3 and pcb board 4；Wherein, permanent magnets 3 is located at and determines
The intracavity of position set 2, the front end face of positioning sleeve 2 is provided with the first draw-in groove 21, the first draw-in groove 21 and Hall IC 1 shape
Becoming interference fit, the rear end face of positioning sleeve 2 is provided with the second draw-in groove 22, before the second draw-in groove 22 and pcb board 4
End forms interference fit, and the lead-in wire of Hall IC 1 is walked around positioning sleeve 2 and is electrically connected with pcb board 4.Wherein,
Before Hall IC 1 is fixed on positioning sleeve 2 by forming interference fit with the first draw-in groove 21 on positioning sleeve 2
End face, pcb board 4 by form interference fit with the second draw-in groove 22 on positioning sleeve 2 and with positioning sleeve 2
Rear end face forms a fixed connection.Compare at present by the hydropexic mode of glue, fixed in this hall speed sensor
Position set 2 is more convenient with the assembling of Hall IC 1, pcb board 4, it is more firm, more resistant to high temperature and processing step to be connected
Less.It is connected with pcb board 4 it addition, be not required to fluting in permanent magnets 3, therefore its outward appearance is more well-balanced, magnetic induction
Line evenly, is also easier to make；It is not required on positioning sleeve 2 arrange perforation for the lead-in wire of Hall IC 1 again, therefore
Its structure is simpler, the most more convenient during assembling Hall IC 1.Therefore, this hall speed sensor has performance
More excellent, assemble more convenient and that cost is lower feature.
In the present embodiment, as shown in Figure 4, shell 7 includes metal-coating 71 and non-metal body 72, accommodates chamber
73 are arranged in non-metal body 72, and opening is arranged on one end of non-metal body 72, and metal-coating 71 is sheathed
On the outer wall of non-metal body 72 (non-metal body 72 two ends can all openings, it is possible to be set to one end close,
Other end opening, if two ends all openings, is then set in by metal-coating 71 on the outer wall of non-metal body 72
Will be close to the opening at Hall IC 1 close).Wherein, metal-coating 71 is for shielding the signal of outside；
Non-metal body 72 1 aspect is used for accommodating and fix the senses such as Hall IC 1, permanent magnets 3, positioning sleeve 2, pcb board 4
Answer body component, on the other hand for isolating metal overcoat 71, prevent metal-coating 71 from touching inside
The circuit of the inductor components such as Hall IC 1, permanent magnets 3, positioning sleeve 2, pcb board 4, thus prevent short circuit
The generation of problem.Non-metal body 72 is plastic body, and metal-coating 71 and this plastic body are integrated injection
Molding (i.e. forms non-metal body 72 by injection-moulded plastic raw material in metal-coating 71), therefore outside metal
Set 71 and the connection more close and firm of non-metal body 72, it is possible to prevent from occurring each other in practical work process
The problem departed from.
In the present embodiment, the inwall of non-metal body 72 is provided with the positioning runner 74 slipped into for pcb board 4,
Positioning runner 74 is used for making pcb board 4 insert with angle accurately, and receiving chamber 73 is interior and holding is fixing.Positioning runner
74 one end deviating from receiving chamber 73 opening are provided with the 3rd draw-in groove 741, near accommodating the one of chamber 73 opening on pcb board 4
End is provided with the card article 41 of projection, and the 3rd draw-in groove 741 forms interference fit, so that pcb board 4 enters one with card article 41
Step keeps fixing.
In the present embodiment, the quantity of Hall IC 1 is two, is all difference Hall IC, in single Hall IC 1
Two Hall elements are contained in portion；The sensitive surface of two Hall IC 1 is laid in the first draw-in groove 21 of positioning sleeve 2
And just face, the South Pole or north pole face to permanent magnets 3.As it is shown in figure 5, positioning runner 74 and non-metal body 72
Longitudinal cross section crossing axis line forms predetermined angular, and this predetermined angular is for making two within Hall IC 1
The spacing of Hall element matches with the tooth pitch on target pulse gear, such as: predetermined angular is θ, Hall IC 1
The spacing of two internal Hall elements is d, and the minimum tooth on target pulse gear away from for D, then needs to meet
Cos θ ＜ D/d, is used for preventing from being caused signal by self algorithm of Hall IC 1 when identifying the pulse gear of rectangle
Lose or the situation of waveform deformity.
In the present embodiment, this hall speed sensor also includes the envelope suitable with the opening of non-metal body 72
Lid 8, capping 8 is provided with perforation, and pcb board 4 is provided with cable 5, cable 5 near the one end accommodating chamber 73 opening
Stretching out from the perforation of the opening accommodating chamber 73 and capping 8, be used for providing electrically, data signal etc. inputs defeated
Go out.
In the present embodiment, one end of non-metal body 72 opening is provided with fixing ears 721, fixing ears 721
It is provided with two connecting holes run through 722, at connecting hole 722, is wrapped with metal lining 723, be used for adding strong
Determine effect.Being arranged with " o " RunddichtringO 6 on the outer wall of non-metal body 72, " o " RunddichtringO 6 is close
Fixing ears 721, " o " RunddichtringO 6 is for strengthening protection and the effect sealed.
Each technical characteristic of embodiment described above can combine arbitrarily, for making description succinct, the most right
The all possible combination of each technical characteristic in above-described embodiment is all described, but, if these skills
There is not contradiction in the combination of art feature, is all considered to be the scope that this specification is recorded.
Embodiment described above only have expressed several embodiments of the present utility model, its describe more concrete and
In detail, but therefore can not be interpreted as the restriction to utility model patent scope.It should be pointed out that, it is right
For those of ordinary skill in the art, without departing from the concept of the premise utility, it is also possible to do
Going out some deformation and improvement, these broadly fall into protection domain of the present utility model.Therefore, this utility model is special
The protection domain of profit should be as the criterion with claims.
Claims (10)
1. a hall speed sensor, it is characterised in that include Hall IC, permanent magnets, positioning sleeve, PCB
Plate and non-metal body, be provided with receiving chamber in non-metal body, one end of non-metal body is provided with and accommodates chamber
The opening of connection, accommodate in chamber by interior arrange with being sequentially connected to opening direction described Hall IC, positioning sleeve,
Permanent magnets and pcb board, the outer wall of non-metal body and one end of close described Hall IC are all wrapped with outside metal
Set.
Hall speed sensor the most according to claim 1, it is characterised in that described non-metal body
Inwall be provided with the positioning runner suitable with the lateral edges of described pcb board.
Hall speed sensor the most according to claim 2, it is characterised in that described positioning runner is carried on the back
It is provided with draw-in groove, near one end of described receiving chamber opening on described pcb board from one end of described receiving chamber opening
Being provided with the card article of projection, draw-in groove forms interference fit with card article.
Hall speed sensor the most according to claim 3, it is characterised in that described Hall IC
Quantity is two, and described Hall IC is difference Hall IC；Described positioning runner is with described non-metal body longitudinally
The cross section crossing axial line form predetermined angular, this predetermined angular is for making within described Hall IC two suddenly
You match with the tooth pitch on target pulse gear at the spacing of element.
Hall speed sensor the most according to claim 1, it is characterised in that described positioning sleeve is sheathed
In permanent magnets, the sensitive surface of Hall IC is arranged on the end face of positioning sleeve and is positioned at the face, the South Pole of permanent magnets
Or north pole face, the north pole face of one end that pcb board is remained silent near described receiving chamber and permanent magnets or face, South Pole phase
Even, the pin of Hall IC is electrically connected with pcb board through or around positioning sleeve.
Hall speed sensor the most according to claim 5, it is characterised in that described Hall IC
Quantity is two, and the sensitive surface of two described Hall IC is laid on the end face of described positioning sleeve and just to institute
State face, the South Pole or the north pole face of permanent magnets.
Hall speed sensor the most according to claim 1, it is characterised in that lean on described pcb board
One end of nearly described receiving chamber opening is provided with cable, and the cable opening from described receiving chamber stretches out.
Hall speed sensor the most according to any one of claim 1 to 7, it is characterised in that institute
The one end stating non-metal body opening is provided with fixing ears, and fixing ears are provided with two connecting holes run through,
Connection hole is wrapped with metal lining.
Hall speed sensor the most according to claim 8, it is characterised in that described non-metal body
Outer wall on be arranged with " o " RunddichtringO, " o " RunddichtringO is near described fixing ears.
Hall speed sensor the most according to any one of claim 1 to 7, it is characterised in that
Also including the capping suitable with the opening of described non-metal body, capping is provided with perforation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620099950.9U CN205539038U (en) | 2016-02-01 | 2016-02-01 | Hall speedtransmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620099950.9U CN205539038U (en) | 2016-02-01 | 2016-02-01 | Hall speedtransmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205539038U true CN205539038U (en) | 2016-08-31 |
Family
ID=56774833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620099950.9U Active CN205539038U (en) | 2016-02-01 | 2016-02-01 | Hall speedtransmitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205539038U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107769459A (en) * | 2017-11-30 | 2018-03-06 | 无锡典聚科技有限公司 | There is the error-proof structure of set lead-out wire in a kind of electronic strut of tail-gate |
-
2016
- 2016-02-01 CN CN201620099950.9U patent/CN205539038U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107769459A (en) * | 2017-11-30 | 2018-03-06 | 无锡典聚科技有限公司 | There is the error-proof structure of set lead-out wire in a kind of electronic strut of tail-gate |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |