CN105845498A - Low-pressure injection molding magnetic proximity switch - Google Patents
Low-pressure injection molding magnetic proximity switch Download PDFInfo
- Publication number
- CN105845498A CN105845498A CN201610381705.1A CN201610381705A CN105845498A CN 105845498 A CN105845498 A CN 105845498A CN 201610381705 A CN201610381705 A CN 201610381705A CN 105845498 A CN105845498 A CN 105845498A
- Authority
- CN
- China
- Prior art keywords
- solidus
- injection molding
- tongue tube
- pressure injection
- mouth
- 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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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/58—Electric connections to or between contacts; Terminals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/02—Bases, casings, or covers
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Switch Cases, Indication, And Locking (AREA)
Abstract
The invention relates to the technical field of magnetic proximity switches, in particular to a low-pressure injection molding magnetic proximity switch, which comprises a plastic box, a reed switch and an inlet and outlet lead, wherein an opening is formed in the upper end of the plastic box; two threading slots are formed in the right end wall of the plastic box; a wire fixing pinch plate is arranged at the inner side of the left end wall of the plastic box; the wire fixing pinch plate is matched with the lateral wall of the plastic box to form a wire fixing opening; the inlet and outlet lead is electrically connected with two pins of the reed switch respectively; one pin of the reed switch is fixedly arranged in the wire fixing opening; and the inlet and outlet lead is transversely led out from the corresponding threading slot. The low-pressure injection molding magnetic proximity switch is reasonable in structure; one pin of the reed switch is integrally connected with the lead through a rivet; the electric connection strength is high; and the performance is stable. The rivet at one end of the reed switch is arranged in the wire fixing opening in a penetrating manner; the other end of the reed switch is limited through the positions of a wire clamping hole and a rib plate, so that the assembly position of the reed switch in an inner cavity of the plastic box is reasonable; a low-pressure injection molding process is achieved; and the impact strength and the electrical stability of the reed switch can be effectively improved.
Description
Technical field
The present invention relates to magnetic approach switch technical field, refer specifically to a kind of low-pressure injection molding magnetic approach switch.
Background technology
Dry-reed magnetic approach switch is that a kind of non-contact magnetic force that realizes triggers the break-make control between two contacts of tongue tube
System switch, its reliability is the most fully verified, is widely used as safety con-trol part.And tongue tube belongs to
Frangible glass tubing goods, are easier the quality such as breakage causes switch failure, appearance straight-through hidden in manufacture and transportation
Suffer from.Design for this magnetic switch many employings constructive interference, make tongue tube effectively be supported in magnetic switch, thus improve
Injection degree of accuracy and raising working (machining) efficiency.
Magnetic approach switch structure as disclosed in Unexamined Patent 7-262893, includes housing, tongue tube and turnover lead-in wire,
Being provided with locating support in the injection molding cavity of housing, locating support two ends have cable clamping interface, and the two ends of tongue tube are drawn pin and blocked respectively
Being connected on cable clamping interface, turnover lead-in wire is respectively welded on two pins of tongue tube, and a sidewall of housing offers line outlet groove,
Turnover lead-in wire passes from line outlet groove and fixes, and pours into fluid sealant in the injection molding cavity of housing.Showa 56-22744 discloses one
The fixed connection structure of tongue tube pin, difference is that tongue tube pincard is connected on end plate, and end plate is riveted on substrate,
Lead-in wire welds with the tongue tube pin at substrate two ends.
Such scheme, mainly for tongue tube fixing and encapsulating location purpose in glue box, does not take into full account tongue tube
With the attachment structure stability of lead-in wire, the weatherability of magnetic switch and less reliable.Therefore, prior art needs to change
Enter and develop.
Summary of the invention
Present invention aims to defect and the deficiency of prior art, it is provided that a kind of compact conformation, easy to assembly, steady
Fixed reliable low-pressure injection molding magnetic approach switch.
To achieve these goals, the present invention is by the following technical solutions:
A kind of low-pressure injection molding magnetic approach switch of the present invention, is the glue box that opening is arranged including upper end, and tongue tube and turnover are drawn
Line, the right-hand member wall of described glue box is provided with two Wire channel in building, is provided with solidus buckle inside the left end wall of glue box, solidus buckle with
One of them sidewall of glue box cooperatively forms solidus mouth；Described turnover lead-in wire electrically connects with two pins of tongue tube respectively, dry
One of them pin of reed pipe is fixedly arranged in solidus mouth, and turnover lead-in wire extends laterally away respectively in corresponding Wire channel in building.
According to above scheme, the pin of described tongue tube and the connecting portion of lead-in wire are provided with rivet, and tongue tube one of them
Rivet on pin is inserted in solidus mouth.
According to above scheme, it is connected between upper end and one of them sidewall of glue box of described solidus buckle and has cover plate, cover plate,
Solidus buckle, the base plate of glue box and sidewall cooperatively form opening solidus mouth to the right.
According to above scheme, the upper end of described solidus buckle be provided with to glue box one of them sidewall extend hook plate, hook plate,
Solidus buckle, between the base plate of glue box and sidewall, cooperatively form opening solidus mouth to the right, and hook and set on the elongated end of plate
There is oblique spigot surface.
According to above scheme, the left end wall of described glue box is provided with encapsulating mouth, and cover plate is communicated with encapsulating mouth and solidus mouth
Openings.
According to above scheme, inside the glue box right-hand member wall between said two Wire channel in building, be provided with floor, tongue tube another draw
Rivet on foot is arranged between floor and glue box sidewall.
According to above scheme, the bell-mouth structure of air setting that described Wire channel in building is big up and small down, the lower end of Wire channel in building is provided with adaptation
The line hole of lead-in wire, and the diameter of line hole is more than the mouth width of Wire channel in building lower end.
Relative altitude according to above scheme, described line hole and glue box inner bottom surface is more than 1.25 times of tongue tube radius.
Present invention have the beneficial effect that present configuration is reasonable, tongue tube pin is connected, electrically by rivet one with lead-in wire
Bonding strength high-performance is stable；The rivet of tongue tube one end is arranged in solidus mouth, and the tongue tube other end is by lead-in wire and card line
Hole coordinates, and make that tongue tube two ends form on all around direction is fixed, cover plate or hook plate and coordinate doing with the spacing of wire blocking port
Reed pipe forms the fixed of above-below direction, thus in the unsettled injection molding cavity being arranged on glue box of tongue tube, meets low pressure injection formaing work
The mobility requirement of skill, the encapsulating mouth on glue box end wall connects solidus mouth and injection molding cavity from through hole or oblique spigot surface, it is ensured that close
Fully it is saturated with glue box inner chamber under sealing energy low-pressure injection conditions, the impact strength of tongue tube can be effectively improved and electrically stablize
Property, make the stretching resistance index of proximity switch more than 50N, it is ensured that normal work more than 168 hours under the conditions of high-temperature steam,
Weatherability index is made to rise to 168 hours from 72 hours.
Accompanying drawing explanation
Fig. 1 is the overall detonation configuration schematic diagram of the present invention；
Fig. 2 is the integral installation distribution structure schematic diagram of the present invention；
Fig. 3 is the glue box structural representation of an alternative embodiment of the invention.
In figure:
1, glue box；2, tongue tube；3, cover plate；4, plate is hooked；11, Wire channel in building；12, solidus buckle；13, solidus mouth；14、
Encapsulating mouth；15, floor；16, line hole；21, lead-in wire；22, rivet；31, openings；41, oblique spigot surface.
Detailed description of the invention
With embodiment, technical scheme is illustrated below in conjunction with the accompanying drawings.
As shown in Figure 1-2, a kind of low-pressure injection molding magnetic approach switch of the present invention, is that opening is arranged including upper end
Glue box 1, tongue tube 2 and turnover lead-in wire 21, the right-hand member wall of described glue box 1 is provided with two Wire channel in building 11, a left side for glue box 1
Being provided with solidus buckle 12 inside end wall, solidus buckle 12 cooperatively forms solidus mouth 13 with one of them sidewall of glue box 1；Institute
Stating turnover lead-in wire 21 to electrically connect with two pins of tongue tube 2 respectively, one of them pin of tongue tube 2 is fixedly arranged on solidus mouth
In 13, turnover lead-in wire 21 extends laterally away respectively in corresponding Wire channel in building 11；Described another pin of tongue tube 2 is by drawing
Line 21 coordinates realization height and the restriction of position with Wire channel in building 11, and one of them pin of tongue tube 2 is by solidus mouth 13
Restriction so that tongue tube 2 assembling time two ends the most effectively fixed and supported so that it is in glue box 1 inner chamber locate
In reasonably height；Simultaneously in the unsettled injection molding cavity being arranged on glue box of tongue tube, meet the mobility of low pressure injection formaing technique
Requirement, it is simple to the carrying out of later stage low pressure injection formaing technique, improves the impact strength of proximity switch；Described solidus mouth 13
After encapsulating is molded, the connecting portion of tongue tube 2 with lead-in wire 21 being formed with protection, the electrical connection that can improve proximity switch is strong
Degree and reliability, make the stretching resistance index of proximity switch more than 50N, it is ensured that normal work 168 is little under the conditions of high-temperature steam
More than time, weatherability index is made to rise to 168 hours from 72 hours.
The pin of described tongue tube 2 is provided with rivet 22, and one of them pin of tongue tube 2 with the connecting portion of lead-in wire 21
On rivet 22 be inserted in solidus mouth 13；The pin of tongue tube 2 is riveted in one with lead-in wire 21 by described rivet 22,
Being effectively improved its electrical connection strength and stability, and rivet 22 belongs to metal cold working, its profile and size are easily-controllable, with
The suitability of solidus mouth 13 is more preferable, can reduce, when assembling, the probability that tongue tube 2 floats and comes off；The riveting of described rivet 22
Connect and make tongue tube 2 automated machine can be used more to realize with the electrical connection of lead-in wire 21, can be effectively improved production efficiency with
Product quality, and for soldering electrical connection technique, has that electrical quality is stable, the high and low energy consumption of bonding strength, green
The advantages such as colour circle guarantor.
It is connected between upper end and one of them sidewall of glue box 1 of described solidus buckle 12 and has cover plate 3, cover plate 3, solidus
Buckle 12, the base plate of glue box 1 and sidewall cooperatively form opening solidus mouth 13 to the right, solidus buckle 12 and cover plate 3
It is structure as a whole thus combines glue box 1 and formed and entirely surround structure in a circumference, by rivet 22 and solidus mouth during assembling
The size fit of 13, tongue tube 2 other end coordinates with line hole 16, makes tongue tube 2 two ends be formed all around on direction
Fixed, cover plate 3 with spacing cooperation of wire blocking port 16 tongue tube 2 is formed the fixed of above-below direction, thus tongue tube 2
In the unsettled injection molding cavity being arranged on glue box 1, meet the mobility requirement of low pressure injection formaing technique, it is ensured that fluid sealant energy low pressure
Fully it is saturated with glue box 1 inner chamber under injection condition, the resistance to punching of the injection mo(u)lding quality of proximity switch, tongue tube 2 can be effectively improved
Hit and electric stability, make the stretching resistance index of proximity switch more than 50N, it is ensured that normal work 168 under the conditions of high-temperature steam
More than hour, weatherability index is made to rise to 168 hours from 72 hours.
The left end wall of described glue box 1 is provided with encapsulating mouth 14, and cover plate 3 is communicated with encapsulating mouth 14 and solidus mouth 13
Openings 31, tongue tube 2 is by the compacting of upper and lower mould after having assembled, and fluid sealant injects glue box 1 from encapsulating mouth 14
In inner chamber, fluid sealant thus cover plate 3 pass over and flow to glue box 1 right-hand member and enter solidus mouth by openings 31 simultaneously
In 13, it is ensured that be fully saturated with glue box inner chamber under fluid sealant energy low-pressure injection conditions, make tongue tube 2 pin in solidus mouth 13
On rivet 22 effectively fixed, improve the impact strength of tongue tube 2 and electric stability.
As it is shown on figure 3, the upper end of currently preferred described solidus buckle 12 is provided with one of them sidewall to glue box 1
The hook plate 4 extended, hooks plate 4, solidus buckle 12, cooperatively forms opening between the base plate of glue box 1 and sidewall to the right
Solidus mouth 13, and hook plate 4 elongated end be provided with oblique spigot surface 41；Described hook plate 4 forms a card with solidus buckle 12
Buckle structure, the most in the present embodiment, the lower end of solidus buckle 12 is connected with glue box 1 base plate, and then solidus buckle 12 and
Hook plate 4 thereon has the elastic module swung, the rivet 22 on tongue tube 2 pin assembling time along oblique spigot surface
41 snap in solidus mouth 13, hook plate 4 with glue box 1 base plate, solidus buckle 12 and glue box 1 sidewall to the riveting in solidus mouth 13
Location in button 22 formation circumference, can be prevented effectively from tongue tube 2 and occur displacement when follow-up low-pressure injection molding and float problem,
Improve the injection mo(u)lding quality of proximity switch, the impact resistance of tongue tube 2 and electric stability.
Floor 15 it is provided with, on another pin of tongue tube 2 inside glue box 1 right-hand member wall between said two Wire channel in building 11
Rivet 22 be arranged between floor 15 and glue box 1 sidewall, described lead-in wire 21 horizontal line is drawn, wherein through Wire channel in building 11
One lead-in wire 21 pin right with tongue tube 2 is connected in integrative-structure by rivet 22, and lead-in wire 21 is subject in Wire channel in building 11
Position limits, so that the height of the right pin of tongue tube 2 is limited；And floor 15 coordinates dry spring with glue box 1 sidewall
Fixing on the rivet 22 on the right pin of pipe 2 is longitudinal before and after realizing, it is to avoid tongue tube 2 goes out when follow-up low-pressure injection molding technology
Existing displacement, makes the tongue tube 2 riding position in glue box 1 inner chamber more stable, improves the fluid sealant sizing to tongue tube 2
Dimensional accuracy.
The bell-mouth structure of air setting that described Wire channel in building 11 is big up and small down, the lower end of Wire channel in building 11 is provided with adaptive lead-in wire 21
Line hole 16, and the diameter of line hole 16 is more than the mouth width of Wire channel in building 11 lower end；Described line hole 16 and glue box 1
The relative altitude of inner bottom surface is more than 1.25 times of tongue tube 2 radius；Described tongue tube 2 lead-in wire 21 thereon when assembling blocks
Entering in the wire blocking port 16 bottom Wire channel in building 11, so that it obtains preliminary fixing, and the High definition of line hole 16 is dry
Reed pipe 2 in glue box 1 rationally dispose height so that obtaining having of fluid sealant between the bottom of tongue tube 2 and glue box 1
Effect protection, improves impact strength and the stability of proximity switch.
The above is only the better embodiment of the present invention, and left and right, upper and lower, forward and backward statement therein only limits
Relative position relation between presentation technology feature, thus all according to the structure described in present patent application scope, feature and former
The equivalence that reason is done changes or modifies, in the range of being all included in present patent application.
Claims (8)
1. a low-pressure injection molding magnetic approach switch, is the glue box (1) that opening is arranged including upper end, and tongue tube (2) and turnover are drawn
Line (21), it is characterised in that: the right-hand member wall of described glue box (1) is provided with two Wire channel in building (11), a left side for glue box (1)
Being provided with solidus buckle (12) inside end wall, solidus buckle (12) cooperatively forms solidus with one of them sidewall of glue box (1)
Mouth (13)；Described turnover lead-in wire (21) electrically connects with two pins of tongue tube (2) respectively, and tongue tube (2) is wherein
One pin is fixedly arranged in solidus mouth (13), and turnover lead-in wire (21) extends laterally away respectively in corresponding Wire channel in building (11).
Low-pressure injection molding magnetic approach switch the most according to claim 1, it is characterised in that: the pin of described tongue tube (2)
The rivet (22) being provided with in rivet (22), and tongue tube (2) one of them pin with the connecting portion of lead-in wire (21) is inserted
It is located in solidus mouth (13).
Low-pressure injection molding magnetic approach switch the most according to claim 1 and 2, it is characterised in that: described solidus buckle (12)
Upper end and one of them sidewall of glue box (1) between be connected and have cover plate (3), cover plate (3), solidus buckle (12), glue
The base plate of box (1) and sidewall cooperatively form opening solidus mouth (13) to the right.
Low-pressure injection molding magnetic approach switch the most according to claim 1 and 2, it is characterised in that: described solidus buckle (12)
Upper end be provided with to glue box (1) one of them sidewall extend hook plate (4), hook plate (4), solidus buckle (12), glue
Cooperatively form opening solidus mouth (13) to the right between base plate and the sidewall of box (1), and hook the elongated end of plate (4)
It is provided with oblique spigot surface (41).
Low-pressure injection molding magnetic approach switch the most according to claim 3, it is characterised in that: the left end wall of described glue box (1)
It is provided with encapsulating mouth (14), cover plate (3) is communicated with the openings (31) of encapsulating mouth (14) and solidus mouth (13).
Low-pressure injection molding magnetic approach switch the most according to claim 2, it is characterised in that: said two Wire channel in building (11) it
Between glue box (1) right-hand member wall inside be provided with floor (15), the rivet (22) on tongue tube (2) another pin wears
Between floor (15) and glue box (1) sidewall.
Low-pressure injection molding magnetic approach switch the most according to claim 1, it is characterised in that: described Wire channel in building (11) is presented greatly
Under little bell-mouth structure of air arrange, the lower end of Wire channel in building (11) is provided with the line hole (16) of adaptive lead-in wire (21), and card line
The diameter in hole (16) is more than the mouth width of Wire channel in building (11) lower end.
Low-pressure injection molding magnetic approach switch the most according to claim 7, it is characterised in that: described line hole (16) and glue box
(1) relative altitude of inner bottom surface is more than 1.25 times of tongue tube (2) radius.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610381705.1A CN105845498B (en) | 2016-05-31 | 2016-05-31 | A kind of low-pressure injection molding magnetic approach switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610381705.1A CN105845498B (en) | 2016-05-31 | 2016-05-31 | A kind of low-pressure injection molding magnetic approach switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105845498A true CN105845498A (en) | 2016-08-10 |
| CN105845498B CN105845498B (en) | 2018-05-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610381705.1A Expired - Fee Related CN105845498B (en) | 2016-05-31 | 2016-05-31 | A kind of low-pressure injection molding magnetic approach switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105845498B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106356248A (en) * | 2016-10-20 | 2017-01-25 | 佛山市川东磁电股份有限公司 | Quickly encapsulated magnetic proximity sensor and household electrical appliance using sensor |
| CN109435146A (en) * | 2018-12-31 | 2019-03-08 | 欣灵电气股份有限公司 | Optoelectronic switch and its production technology and corresponding production mould |
| CN109979771A (en) * | 2019-04-16 | 2019-07-05 | 深圳市五洲电子有限公司 | A kind of security protection magnetic switch and packaging technology |
| CN110932047A (en) * | 2019-12-05 | 2020-03-27 | 济南金宝马电子仪表有限公司 | Dry spring electric contact manufacturing device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07262893A (en) * | 1994-03-25 | 1995-10-13 | Tokin Corp | Case enclosed type magnetic proximity switch |
| JP2005142114A (en) * | 2003-11-10 | 2005-06-02 | Oki Sensor Device Corp | Magnetic proximity switch, and manufacturing method of the same |
| CN103531401A (en) * | 2013-10-14 | 2014-01-22 | 佛山市川东磁电股份有限公司 | Split welded magnetic control switch structure and assembly method of magnetic control switch structure |
| CN203826285U (en) * | 2014-05-07 | 2014-09-10 | 温州港源电子有限公司 | Proximity switch |
-
2016
- 2016-05-31 CN CN201610381705.1A patent/CN105845498B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07262893A (en) * | 1994-03-25 | 1995-10-13 | Tokin Corp | Case enclosed type magnetic proximity switch |
| JP2005142114A (en) * | 2003-11-10 | 2005-06-02 | Oki Sensor Device Corp | Magnetic proximity switch, and manufacturing method of the same |
| CN103531401A (en) * | 2013-10-14 | 2014-01-22 | 佛山市川东磁电股份有限公司 | Split welded magnetic control switch structure and assembly method of magnetic control switch structure |
| CN203826285U (en) * | 2014-05-07 | 2014-09-10 | 温州港源电子有限公司 | Proximity switch |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106356248A (en) * | 2016-10-20 | 2017-01-25 | 佛山市川东磁电股份有限公司 | Quickly encapsulated magnetic proximity sensor and household electrical appliance using sensor |
| CN106356248B (en) * | 2016-10-20 | 2018-09-11 | 佛山市川东磁电股份有限公司 | A kind of fast packing magnetic proximity sensor and the household electrical appliance using the sensor |
| CN109435146A (en) * | 2018-12-31 | 2019-03-08 | 欣灵电气股份有限公司 | Optoelectronic switch and its production technology and corresponding production mould |
| CN109979771A (en) * | 2019-04-16 | 2019-07-05 | 深圳市五洲电子有限公司 | A kind of security protection magnetic switch and packaging technology |
| CN110932047A (en) * | 2019-12-05 | 2020-03-27 | 济南金宝马电子仪表有限公司 | Dry spring electric contact manufacturing device |
| CN110932047B (en) * | 2019-12-05 | 2021-03-26 | 济南金宝马电子仪表有限公司 | Dry spring electric contact manufacturing device |
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| Publication number | Publication date |
|---|---|
| CN105845498B (en) | 2018-05-15 |
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