CN105845498B - A kind of low-pressure injection molding magnetic approach switch - Google Patents
A kind of low-pressure injection molding magnetic approach switch Download PDFInfo
- Publication number
- CN105845498B CN105845498B CN201610381705.1A CN201610381705A CN105845498B CN 105845498 B CN105845498 B CN 105845498B CN 201610381705 A CN201610381705 A CN 201610381705A CN 105845498 B CN105845498 B CN 105845498B
- Authority
- CN
- China
- Prior art keywords
- tongue tube
- glue box
- solidus
- mouth
- pressure injection
- 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
Abstract
The present invention relates to magnetic approach switch technical field, refer specifically to a kind of low-pressure injection molding magnetic approach switch, it is the glue box that opening is set including upper end, tongue tube and disengaging lead, the right end wall of the glue box is equipped with two threading grooves, it is equipped with solidus buckle on the inside of the left end walls of glue box, the side wall of solidus buckle and glue box cooperatively forms solidus mouth;The disengaging lead is electrically connected with two pins of tongue tube respectively, and the one of pin of tongue tube is fixedly arranged in solidus mouth, and disengaging lead is extended laterally away out of corresponding threading groove respectively;The present invention is rational in infrastructure, and tongue tube pin is stablized with lead by rivet integrally connected, electrical connection intensity high-performance;The rivet of tongue tube one end is arranged in solidus mouth, the position restriction that the tongue tube other end passes through line hole and floor, rigging position of the tongue tube in glue box inner cavity is rationally realized low pressure injection formaing technique, the impact strength and electric stability of tongue tube can be effectively improved.
Description
Technical field
The present invention relates to magnetic approach switch technical field, refers specifically to a kind of low-pressure injection molding magnetic approach switch.
Background technology
Dry-reed magnetic approach switch is the break-make between a kind of achievable two contacts of non-contact magnetic force triggering tongue tube
Controlling switch, its reliability is fully verified, is widely used as safety con-trol part.And tongue tube belongs to
Frangible glass tubing products, manufacture and transportational process in be easier that breakage causes switch failure, the quality such as straight-through occur hidden
Suffer from.Magnetic switch is designed using constructive interference more for this, tongue tube is effectively supported in magnetic switch, so as to improve note
Mould accuracy and improve processing efficiency.
The magnetic approach switch structure as disclosed in Unexamined Patent 7-262893, includes housing, tongue tube and disengaging lead,
Locating support is equipped with the injection molding cavity of housing, locating support both ends have cable clamping interface, and the both ends of tongue tube are drawn pin and blocked respectively
It is connected on cable clamping interface, disengaging lead is respectively welded on two pins of tongue tube, and line outlet groove is offered in the one side wall of housing,
Disengaging lead is pierced by and fixes from line outlet groove, and fluid sealant is poured into the injection molding cavity of housing.Showa 56-22744 discloses one kind
The fixed connection structure of tongue tube pin, difference are that tongue tube pin is connected on end plate, and end plate is riveted on substrate,
Lead and the tongue tube pin at substrate both ends weld.
Such scheme positions purpose mainly for fixation of the tongue tube in glue box and encapsulating, does not take into full account dry spring
The connection structure stability of pipe and lead, the weatherability and less reliable of magnetic switch.Therefore, the prior art needs to change
Into and development.
The content of the invention
In view of the defects and deficiencies of the prior art, the present invention intends to provide a kind of compact-sized, easy to assembly, steady
Fixed reliable low-pressure injection molding magnetic approach switch.
To achieve these goals, the present invention uses following technical scheme:
A kind of low-pressure injection molding magnetic approach switch of the present invention, including the glue box that upper end is opening setting, tongue tube
With disengaging lead, the right end wall of the glue box is equipped with two threading grooves, solidus buckle, solidus is equipped with the inside of the left end wall of glue box
Buckle and one of side wall of glue box cooperatively form solidus mouth;Two pins of the disengaging lead respectively with tongue tube are electrically connected
Connect, the one of pin of tongue tube is fixedly arranged in solidus mouth, and disengaging lead is extended laterally away out of corresponding threading groove respectively.
According to above scheme, the pin of the tongue tube and the connecting portion of lead are equipped with rivet, and tongue tube wherein one
Rivet on a pin is inserted in solidus mouth.
According to above scheme, cover board is connected between the upper end of the solidus buckle and one of side wall of glue box, is covered
Plate, solidus buckle, the bottom plate of glue box and side wall cooperatively form the solidus mouth of an opening to the right.
According to above scheme, the upper end of the solidus buckle is equipped with the hook plate extended to one of side wall of glue box, hooks
Plate, solidus buckle, glue box bottom plate and side wall between cooperatively form an opening solidus mouth to the right, and hook on the elongated end of plate
Equipped with oblique guide surface.
According to above scheme, the left end wall of the glue box is equipped with encapsulating mouth, and cover board is equipped with connection encapsulating mouth and solidus
The openings of mouth.
According to above scheme, be equipped with floor on the inside of glue box right end wall between described two threading grooves, tongue tube another
Rivet on pin is arranged between floor and glue box side wall.
According to above scheme, the threading groove is set in up big and down small bell-mouth structure of air, and the lower end of threading groove, which is equipped with, fits
Line hole with lead, and the diameter of line hole is more than the mouth width of threading groove lower end.
According to above scheme, the relative altitude of the line hole and glue box inner bottom surface is more than 1.25 times of tongue tube radius.
The present invention has the beneficial effect that:The present invention is rational in infrastructure, and tongue tube pin and lead are by rivet integrally connected, electrically
Bonding strength high-performance is stablized;The rivet of tongue tube one end is arranged in solidus mouth, and the tongue tube other end passes through lead and card line
Hole coordinates, and forms tongue tube both ends fixed on direction all around, and the spacing cooperation of cover board or hook plate and wire blocking port is to dry
Reed pipe forms the fixed of above-below direction, so that tongue tube is vacantly arranged in the injection molding cavity of glue box, meets low pressure injection formaing work
The mobility of skill requires, and the encapsulating mouth on glue box end wall ensures close from through hole or oblique guide surface connection solidus mouth and injection molding cavity
Glue box inner cavity is fully saturated with sealing energy low-pressure injection conditions, the impact strength of tongue tube can be effectively improved and electrically stablized
Property, the stretching resistance index made close to switch is more than 50N, ensures more than when normal work 168 is small under the conditions of high-temperature steam, makes resistance to
Wait property index from 72 it is small when lifting to 168 it is small when.
Brief description of the drawings
Fig. 1 is the overall 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 structure diagram of an alternative embodiment of the invention.
In figure:
1st, glue box;2nd, tongue tube;3rd, cover board;4th, plate is hooked;11st, threading groove;12nd, solidus buckle;13rd, solidus mouth;14th, encapsulating
Mouthful;15th, floor;16th, line hole;21st, lead;22nd, rivet;31st, openings;41st, oblique guide surface.
Embodiment
Technical scheme is illustrated with embodiment below in conjunction with the accompanying drawings.
As shown in Figs. 1-2, a kind of low-pressure injection molding magnetic approach switch of the present invention, including upper end are opening setting
Glue box 1, tongue tube 2 and disengaging lead 21, the right end walls of the glue box 1 are equipped with two threading grooves 11, in the left end wall of glue box 1
Side is equipped with solidus buckle 12, and solidus buckle 12 and one of side wall of glue box 1 cooperatively form solidus mouth 13;The disengaging lead
21 are electrically connected with two pins of tongue tube 2 respectively, and 2 one of pin of tongue tube is fixedly arranged in solidus mouth 13, pass in and out lead
21 extend laterally away out of corresponding threading groove 11 respectively;Described another pin of tongue tube 2 passes through lead 21 and threading groove 11
Coordinate the restriction for realizing height and position, and 2 one of pin of tongue tube is by the restriction of solidus mouth 13, so that tongue tube
2 in assembling both ends effectively fixed and supported, make it in 1 inner cavity of glue box in rational height;Dry spring at the same time
Pipe is vacantly arranged in the injection molding cavity of glue box, meets the mobility requirement of low pressure injection formaing technique, easy to later stage low-pressure injection molding
The progress of moulding process, improves the impact strength close to switch;The solidus mouth 13 is after encapsulating injection to tongue tube 2 with drawing
The connecting portion of line 21 can improve electrical connection intensity and reliability close to switch, make the tension close to switch formed with protection
Power index is more than 50N, ensure under the conditions of high-temperature steam normal work 168 it is small when more than, make weatherability index from 72 it is small when carry
Be raised to 168 it is small when.
The pin of the tongue tube 2 is equipped with rivet 22 with the connecting portion of lead 21, and on 2 one of pin of tongue tube
Rivet 22 be inserted in solidus mouth 13;The rivet 22 rivets the pin of tongue tube 2 and lead 21 in one, effectively improves
It is electrically connected strength and stability, and rivet 22 belongs to metal cold working, its shape and size are easily-controllable, suitable with solidus mouth 13
It is more preferable with property, the probability that tongue tube 2 floats and comes off can be reduced in assembling;The riveting of the rivet 22 makes tongue tube 2 with drawing
The electrical connection of line 21 can be realized more using automated machine, can effectively improve production efficiency and product quality, and relative to
Soldering is electrically connected for technique, has the advantages that electrical quality is stable, the high and low energy consumption of bonding strength, environmentally protective.
Cover board 3, cover board 3, firm clamp are connected between the upper end of the solidus buckle 12 and one of side wall of glue box 1
Plate 12, the bottom plate of glue box 1 and side wall cooperatively form the solidus mouth 13 of an opening to the right, and solidus buckle 12 and cover board 3 are integrated
Structure so as to combine that glue box 1 form in a circumferential direction it is complete surround structure, when assembling, passes through rivet 22 and the size of solidus mouth 13
Adaptation, 2 other end of tongue tube coordinate with line hole 16,2 both ends of tongue tube is formed fixed on direction all around, cover board 3
Spacing cooperation with wire blocking port 16 forms the fixed of above-below direction to tongue tube 2, so that tongue tube 2 is vacantly arranged on glue box 1
In injection molding cavity, meet the mobility requirement of low pressure injection formaing technique, ensure fully to be saturated with fluid sealant energy low-pressure injection conditions
1 inner cavity of glue box, can effectively improve the injection molding quality close to switch, the impact resistance of tongue tube 2 and electric stability, make to approach
The stretching resistance index of switch is more than 50N, ensures more than when normal work 168 is small under the conditions of high-temperature steam, makes weatherability index
From 72 it is small when lifting to 168 it is small when.
The left end wall of the glue box 1 is equipped with encapsulating mouth 14, and cover board 3 is equipped with passing through for connection encapsulating mouth 14 and solidus mouth 13
Port 31, by the compacting of upper and lower mould after the completion of assembling, fluid sealant injects in 1 inner cavity of glue box tongue tube 2 from encapsulating mouth 14, close
So that the top of cover board 3 is passed through and flows to 1 right end of glue box and entered at the same time by openings 31 in solidus mouth 13, guarantee seals for sealing
Glue box inner cavity is fully saturated with glue energy low-pressure injection conditions, is there is the rivet 22 on 2 pin of tongue tube in solidus mouth 13
Effect is fixed, and improves the impact strength and electric stability of tongue tube 2.
Prolong as shown in figure 3, the upper end of the currently preferred solidus buckle 12 is equipped with to one of side wall of glue box 1
The hook plate 4 stretched, hook plate 4, solidus buckle 12, glue box 1 bottom plate and side wall between cooperatively form an opening solidus mouth to the right
13, and the elongated end for hooking plate 4 is equipped with oblique guide surface 41;The hook plate 4 forms a buckle structure with solidus buckle 12, therefore
In the present embodiment, the lower end of solidus buckle 12 is connected with 1 bottom plate of glue box, and then solidus buckle 12 and hook plate 4 thereon have
The elastic module to swing, the rivet 22 on 2 pin of tongue tube are caught in solidus mouth 13 along oblique guide surface 41 in assembling, hook plate
4 form the rivet 22 in solidus mouth 13 with 1 side wall of glue box with 1 bottom plate of glue box, solidus buckle 12 positioning in circumferential direction, can be effective
Avoid tongue tube 2 from occurring displacement in follow-up low-pressure injection molding and float problem, improve the injection molding quality close to switch, dry spring
The impact resistance of pipe 2 and electric stability.
Floor 15 is equipped with the inside of 1 right end wall of glue box between described two threading grooves 11, on another pin of tongue tube 2
Rivet 22 is arranged between 1 side wall of floor 15 and glue box, and 21 horizontal line of lead is drawn through threading groove 11, one of lead
21 to be connected with 2 right pin of tongue tube by rivet 22 be in integrative-structure, and lead 21 is subject to position restriction in threading groove 11, so that
Limited the height of 2 right pin of tongue tube;And floor 15 coordinates the rivet on 2 right pin of tongue tube with 1 side wall of glue box
Longitudinal fixation before and after 22 realizations, avoids tongue tube 2 from displacement occur in follow-up low-pressure injection molding technology, makes tongue tube 2 in glue
Riding position in 1 inner cavity of box is more stablized, and improves shaping size precision of the fluid sealant to tongue tube 2.
The threading groove 11 is set in up big and down small bell-mouth structure of air, and the lower end of threading groove 11 is equipped with adaptation lead 21
Line hole 16, and the diameter of line hole 16 is more than the mouth width of 11 lower end of threading groove;The line hole 16 and 1 inner bottom surface of glue box
Relative altitude be more than 1.25 times of 2 radius of tongue tube;Lead 21 of the tongue tube 2 in assembling thereon is caught in threading groove 11
In the wire blocking port 16 of bottom, so that it obtains preliminary fixation, and the High definition of line hole 16 tongue tube 2 is in glue box 1
Interior reasonable placement height, so that obtaining effective protection of fluid sealant between the bottom of tongue tube 2 and glue box 1, is improved close
The impact strength and stability of switch.
The above is only the better embodiment of the present invention, and left and right, upper and lower, forward and backward statement therein is only limitted to
Relative position relation between presentation technology feature, therefore all construction, feature and principles according to described in present patent application scope
The equivalent change or modification done, is included in the range of present patent application.
Claims (6)
1. a kind of low-pressure injection molding magnetic approach switch, including upper end are the glue box (1) that opening is set, tongue tube (2) and disengaging are drawn
Line (21), it is characterised in that:The right end wall of the glue box (1) is equipped with two threading grooves (11), the left end wall inner side of glue box (1)
Equipped with solidus buckle (12), solidus buckle (12) and one of side wall of glue box (1) cooperatively form solidus mouth (13);It is described into
Go out lead (21) to be electrically connected with two pins of tongue tube (2) respectively, tongue tube (2) one of pin is fixedly arranged on solidus mouth
(13) in, disengaging lead (21) is extended laterally away out of corresponding threading groove (11) respectively;The upper end of the solidus buckle (12) with
Cover board (3), cover board (3), solidus buckle (12), the bottom plate of glue box (1) and side are connected between one of side wall of glue box (1)
Wall cooperatively forms the solidus mouth (13) of an opening to the right;
The left end wall of the glue box (1) is equipped with encapsulating mouth (14), and cover board (3) is equipped with connection encapsulating mouth (14) and solidus mouth
(13) openings (31).
2. low-pressure injection molding magnetic approach switch according to claim 1, it is characterised in that:The pin of the tongue tube (2)
Rivet (22) is equipped with the connecting portion of lead (21), and the rivet (22) on tongue tube (2) one of pin is inserted in admittedly
In line mouth (13).
3. low-pressure injection molding magnetic approach switch according to claim 1 or 2, it is characterised in that:The solidus buckle (12)
Upper end be equipped with the hook plate (4) extended to one of side wall of glue box (1), hook plate (4), solidus buckle (12), glue box (1)
The solidus mouth (13) of an opening to the right is cooperatively formed between bottom plate and side wall, and the elongated end for hooking plate (4) is equipped with and is tiltedly oriented to
Face (41).
4. low-pressure injection molding magnetic approach switch according to claim 2, it is characterised in that:Described two threading grooves (11) it
Between glue box (1) right end wall on the inside of be equipped with floor (15), the rivet (22) on tongue tube (2) another pin is arranged in floor
(15) between glue box (1) side wall.
5. low-pressure injection molding magnetic approach switch according to claim 1, it is characterised in that:The threading groove (11) is presented greatly
Under small bell-mouth structure of air set, the lower end of threading groove (11) is equipped with the line hole (16) of adaptation lead (21), and line hole
(16) diameter is more than the mouth width of threading groove (11) lower end.
6. low-pressure injection molding magnetic approach switch according to claim 5, it is characterised in that:The line hole (16) and glue box
(1) 1.25 times of the relative altitude of inner bottom surface more than tongue tube (2) radius.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201610381705.1A CN105845498B (en) | 2016-05-31 | 2016-05-31 | A kind of low-pressure injection molding magnetic approach switch |
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Application Number | Priority Date | Filing Date | Title |
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CN201610381705.1A CN105845498B (en) | 2016-05-31 | 2016-05-31 | A kind of low-pressure injection molding magnetic approach switch |
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CN105845498A CN105845498A (en) | 2016-08-10 |
CN105845498B true CN105845498B (en) | 2018-05-15 |
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CN201610381705.1A Expired - Fee Related CN105845498B (en) | 2016-05-31 | 2016-05-31 | A kind of low-pressure injection molding magnetic approach switch |
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Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
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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 |
CN109435146B (en) * | 2018-12-31 | 2023-04-25 | 欣灵电气股份有限公司 | Photoelectric switch and production process thereof and corresponding production die |
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 |
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 |
Citations (2)
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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 |
Family Cites Families (2)
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 |
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2016
- 2016-05-31 CN CN201610381705.1A patent/CN105845498B/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
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