CN107968019A - Magnetic induction switch - Google Patents

Magnetic induction switch Download PDF

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Publication number
CN107968019A
CN107968019A CN201610914781.4A CN201610914781A CN107968019A CN 107968019 A CN107968019 A CN 107968019A CN 201610914781 A CN201610914781 A CN 201610914781A CN 107968019 A CN107968019 A CN 107968019A
Authority
CN
China
Prior art keywords
corking
tube body
location division
magnetic induction
glue 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.)
Pending
Application number
CN201610914781.4A
Other languages
Chinese (zh)
Inventor
吴定国
王志文
李政道
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANGHAI FINE ELECTRONIC CO Ltd
Original Assignee
SHANGHAI FINE ELECTRONIC CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SHANGHAI FINE ELECTRONIC CO Ltd filed Critical SHANGHAI FINE ELECTRONIC CO Ltd
Priority to CN201610914781.4A priority Critical patent/CN107968019A/en
Publication of CN107968019A publication Critical patent/CN107968019A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H36/00Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
    • H01H36/02Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding actuated by movement of a float carrying a magnet
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00Apparatus or processes specially adapted for the manufacture of electric switches

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
  • Push-Button Switches (AREA)

Abstract

The present invention is a kind of magnetic induction switch, and Switch main body includes the tube body of hollow form and with an opening;Magnetic reed switch is arranged in tube body and is connected a little with two;Corking has resilient clamping force and plug is solid in the opening in a manner of tight fit, and forms the glue injection part that can connect tubular body and location division;Two conducting wires are set in tube body, and one end of each conducting wire connection wherein one connects point, other end is projected to outside tube body through location division and extending;Packaging plastic is flow into tube body from glue injection part, completely to coat magnetic reed switch and the conducting wire positioned at tubular body, and it is at least partly convex expose glue injection part, to complete to have pinpoint magnetic induction switch, and then the production efficiency and yield of raising magnetic induction switch.

Description

Magnetic induction switch
Technical field
The present invention is related to a kind of magnetic induction switch technology, and espespecially one kind can improve finished product yield and production efficiency, and energy Enough reduce the magnetic induction switch of production cost.
Background technology
In general, magnetic induction switch or float switch are a kind of liquid-level switch devices using Magnetic Induction principle.Pass On system, the embodiment of magnetic induction switch device is that a magnetic reed switch is set inside a hollow tube, when the magnetic reed switch by Start can be produced during to an exterior moveable attraction, and then transmits an electronic signal a to controller, with the sharp control Device makes information warning or carries out the modes such as follow-up strained handling.
The manufacturing process of traditional magnetic induction switch device is generally had in injecting sealing in hollow tube, by magnetic reed switch It is positioned at tubular body.However, since the inner space of hollow tube is narrow and small, being bound to when placing magnetic reed switch will be outer Portion's air brings hollow tube into;In addition, extraneous air can also enter inside hollow tube during injecting glue, due to air In the presence of the conducting wire fixed position that can influence magnetic reed switch and its connection, lead to not smoothly to fix magnetic reed switch and conducting wire etc. and ask Topic.
Slowly float also, the air inside hollow tube can become bubble after a period of time has passed, and in hollow tube Surface form pit, only this measure will expose outside the copper wire of magnetic reed switch, cause that insulation protection can not be carried out to magnetic reed switch. Therefore, the mode of production of traditional magnetic induction switch device punctures bubble after simultaneously must waiting bubble floating, and is filled again Glue, to replenish the pit on hollow tube surface.However, due to wait glue hardening time it is longer and can not continuous production, thus The manufacture efficiency of magnetic induction switch device is reduced, and improves production cost.Further, since bubble can also be made during floating Produce mobile into magnetic reed switch and change original setting position, and then influence the yield of magnetic induction switch device.
In view of this, the present inventor is directed to the above-mentioned prior art then, and spy concentrates on studies and coordinates the utilization of scientific principle, solves as possible The problem of certainly above-mentioned point, become the present inventor improvement target.
The content of the invention
One of present invention purpose, is to provide a kind of magnetic induction switch, its corking is with least one mounting hole and at least One glue injection part, conducting wire is fixed by the mounting hole, and can be carried out to injecting glue operation in hollow tube using the glue injection part, thereby Magnetic reed switch and associated tracks are coated, and sky can be excluded to reach by the gap between mounting hole and exhausting-gas hole conducting wire The effect of gas, and because corking is combined closely on hollow tube, therefore be avoided that between magnetic reed switch and conductor combination and produce displacement.
In order to reach above-mentioned purpose, the present invention is a kind of magnetic induction switch, including Switch main body, magnetic reed switch, corking, Two conducting wires and packaging plastic.Switch main body includes the tube body of hollow form and with an opening;Magnetic reed switch is arranged in tube body, and magnetic Spring switch has two to connect a little;Corking has a resilient clamping force as made by elastic material, corking in a manner of tight fit and Plug is set in the opening, and corking forms at least glue injection part that can connect tubular body and an at least location division;Two conducting wires are worn Put in the tube body, one end of two conducting wire connects wherein one and connects point, other end through the location division and extend prominent respectively Go out to outside the tube body;Packaging plastic is flow into tube body from glue injection part, and packaging plastic completely coats magnetic reed switch and positioned at tubular body Conducting wire, and packaging plastic at least partly convex exposes glue injection part.
Compared to the prior art, magnetic induction switch of the invention is provided with corking, and corking is by elasticity such as plastics or rubber Material is made and compressible, and has resilient clamping force;Also, corking solid opening in Switch main body of plug in a manner of tight fit In, and form can coupling cock body tubular body glue injection part and location division, accordingly, packaging plastic inject tube body without cause Air is made to be present in tube body;Furthermore packaging plastic can completely coat magnetic reed switch and the conducting wire in tube body, and glue to be packaged After curing, the magnetic reed switch in tube body will not produce movement, use and reach with pinpoint magnetic induction switch, improve magnetic The production efficiency and yield of inductive switch, increase the convenience and practicality of the present invention.
Brief description of the drawings
The three-dimensional appearance schematic diagram of the magnetic induction switch of Fig. 1 present invention.
The perspective exploded view of the magnetic induction switch of Fig. 2 present invention.
The top view of the corking of Fig. 3 present invention.
The sectional view of the magnetic induction switch of Fig. 4 present invention.
The three-dimensional appearance schematic diagram of another embodiment of corking of Fig. 5 present invention.
The sectional view of another embodiment of magnetic induction switch of Fig. 6 present invention.
The three-dimensional appearance schematic diagram of the another embodiment of corking of Fig. 7 present invention.
The sectional view of the another embodiment of magnetic induction switch of Fig. 8 present invention.
Wherein reference numeral is:
1st, 1a, 1b ... magnetic induction switch
10th, 10a, 10b ... Switch main body
11 ... tube bodies
111 ... second engaging portions
12 ... openings
13 ... spiral shell portions
14 ... pedestals
20 ... magnetic reed switch
21 ... connect a little
30th, 30a, 30b ... corking
30b ' ... semicolumns
300a ... hollow slots
300b ... groove groups
301 ... outer edge surfaces
302 ... first engaging portions
31st, 31a, 31b ... glue injection part
31b ' ... injecting glue grooves
32nd, 32a, 32b ... location division
32b ' ... positioning grooves
33 ... exhausting-gas holes
33a ... is open
33b ' ... embedded slots
33b ... fitting portions
34 ... openings
40th, 40a, 40b ... conducting wire
50th, 50a, 50b ... packaging plastic
60 ... floating balls
70 ... catch
Embodiment
Detailed description for the present invention and technology contents, coordinate schema to be described as follows, but institute's accompanying drawings only provide ginseng Examine and used with explanation, is not used for the present invention person of being any limitation as.
Fig. 1 and Fig. 2 is refer to, is respectively three-dimensional appearance schematic diagram and the stereo decomposing signal of the magnetic induction switch of the present invention Figure.The present invention is a kind of magnetic induction switch 1, including a Switch main body 10, a magnetic reed switch 20, a corking 30, two conducting wires 40 and One packaging plastic 50.The magnetic reed switch 20 and two conducting wire 40 are arranged in the Switch main body 10, which covers the switch sheet Body 10, the packaging plastic 50 are poured in the Switch main body 10, the magnetic reed switch being fixed at according to this inside the Switch main body 10 20 and two conducting wires 40.The structure of the magnetic induction switch 1 is described in more detail in rear.
The Switch main body 10 includes a tube body 11 of hollow form and with an opening 12.In one embodiment of the invention, The Switch main body 10 further includes the spiral shell portion 13 being molded over outside the tube body 11 and a pedestal 14.The spiral shell portion 13 is supplied the Switch main body 10 lockings are in fixture (not shown) such as container etc.;The pedestal 14 then makees fitting to open this for a hand-held tool (not shown) Close body 10 to be rotated, and the Switch main body 10 is locked on the fixture with screw hole by the spiral shell portion 13.
The magnetic reed switch 20 is arranged in the tube body 11, and the magnetic reed switch 20 has two to connect a little 21.Also, the magnetic red is opened The structure for closing 20 belongs to existing, is repeated no more in this.
The corking 30 is compressible as made by the elastic materials such as plastics or rubber, and with characteristics such as resilient clamping forces. In addition, the corking 30 is filled in solid in the opening 12 of the Switch main body 10 in a manner of tight fit, and form can for the corking 30 At least glue injection part 31 inside the tube body 11 of the Switch main body 10 and an at least location division 32 are connected, wherein, the glue injection part 31 A circular hole is arranged to, which is an arc shaped hole.In addition, the corking 30 has the thickness for meeting electric apparatus safety specification scope; It is preferred that the thickness of the corking 30 is in more than 3mm, and have the function of to clamp two conducting wires 40.
Two conducting wire 40 is set in the tube body 11, one end of two conducting wire 40 connect respectively wherein one this connect a little 21, Other end is projected to outside the tube body 11 through the location division 32 of the corking 30 and extension.
Filled in after the magnetic reed switch 20 and two conducting wire 40 are placed in the tube body 11, and by the corking 30 admittedly in the switch In the opening 12 of body 10, then start to carry out injecting glue operation to the inside of the tube body 11.
The packaging plastic 50 is the insulation sealing such as epoxy resin.The packaging plastic 50 flows into this from the glue injection part 31 of the corking 30 In tube body 11;Also, the packaging plastic 50 completely coats the magnetic reed switch 20 and the conducting wire 40 inside the tube body 11, and the envelope Dress glue 50 is at least partly convex to expose the glue injection part 31.
In one embodiment of the invention, which, which further includes, is set in outside the tube body 11 of the Switch main body 10 A floating ball 60 and can be positioned on a catch 70 outside the tube body 11, which is supported by the gear of the catch 70 and will not remove this Tube body 11, the catch 70 may be configured as a such as C-shaped button lock member.During actual implementation, which is internally provided with magnetic Element (not shown) is inhaled, in addition, the floating ball 60 can be moved as liquid level position changes outside the tube body 11, when the floating ball 60 moves Moving to a precalculated position, the magnetic reed switch 20 in the tube body 11 can be subject to the attraction of the magnetic attraction element and produce start, and then Transmit an electronic signal.
It is worth noting that, in this present embodiment, the outer edge surface 301 of the corking 30 is equipped with one first engaging portion 302;It is another Aspect, the internal face of the tube body 11 correspond to first engaging portion 302 and have one second engaging portion 111.The corking 30 passes through this First engaging portion 302 and second engaging portion 111 with reference to and be fixed in the opening 11 of the tube body 11, thereby avoid the corking 30 are excessively pressed into the tube body 11, and then maintain positioning of the corking 30 on the tube body 11.In this present embodiment, first combine Portion 302 is a circular groove, which is a ring rib, is only limitation not in the form of this during actual implementation, first combination Portion 302 and second engaging portion 111 are arranged to the structure that can be mutually located.
It is respectively the top view of corking and the sectional view of magnetic induction switch of the invention please referring additionally to Fig. 3 and Fig. 4.Such as Fig. 3 Shown, in this present embodiment, which has two glue injection parts 31, two location divisions 32 with 3 and multiple exhausting-gas holes 33.Also, this two Glue injection part 31 is symmetrically arranged amongst the dual side-edge of two location division 32, those exhausting-gas holes 33 are then symmetricly set on the respectively positioning in couples The opposite dual side-edge in portion 32.In addition, the corking 30 has one that the lateral margin for extending to the corking 30 from the location division 32 is formed Opening 34, respectively the conducting wire 40 be forced into the location division 32 from the opening 34 and be subject to the resilient clamp of the location division 32 and position.Should Packaging plastic 50 injects the tube body 11 from the glue injection part 31.
Fig. 4 is refer to, it will be evident that two conducting wire 40 is respectively positioned in two location division 32 from figure, the encapsulation Glue 50 from the glue injection part 31 inject the tube body 11 when, the air inside the tube body 11 can be pushed by the packaging plastic 50 and arranged from those Stomata 33 is discharged.Inject the tube body 11 up to after a certain amount of after the packaging plastic 50, the packaging plastic 50 can at least partly expose outside this two Glue injection part 31 and those exhausting-gas holes 33.Thereby, be not in have air inside the tube body 11, which can completely coat this Magnetic reed switch 20 and the conducting wire 20 in the tube body 11, and after the packaging plastic 50 curing, the magnetic reed switch 20 in the tube body 11 Movement will not be produced, uses the production efficiency reached and with pinpoint magnetic induction switch 1, improve the magnetic induction switch 1 And yield.
It please continue with reference to Fig. 5 and Fig. 6, for the three-dimensional appearance schematic diagram and magnetic induction switch of another embodiment of corking of the present invention The sectional view of another embodiment.The present embodiment is roughly the same with previous embodiment, and magnetic induction switch 1a includes a Switch main body 10a, a magnetic reed switch (not shown), a corking 30a, two conducting wire 40a and a packaging plastic 50a.And corking 30a forms at least one Glue injection part 31a and at least a location division 32a.The present embodiment is that the structure of corking 30a is set with previous embodiment difference Put.
As shown in figure 5, in this present embodiment, corking 30a forms spaced two hollow slots 300a.It is more specific and Speech, respectively hollow slots 300a is formed by glue injection part 31a and to location division 32a, and respectively hollow slots 300a includes an injecting glue A portion 31a and location division 32a for connecting glue injection part 31a;Wherein, location division 32a is arranged to a circular hole, the glue injection part 31a is then arranged to an arc shaped hole.It is preferred that location division 32a from glue injection part 31a extend to corking 30a lateral margin and shape Cheng Youyi be open 33a, respectively conducting wire 40a be forced into location division 32a from opening 33a and be subject to the elastic clip of location division 32a Hold and position.
Fig. 6 is refer to, two conducting wire 40a is respectively positioned in the 32a of two location division, and packaging plastic 50a is from the glue injection part 31a injects tube body 11a, injects tube body 11a up to after a certain amount of after packaging plastic 50a, packaging plastic 50a can completely coat magnetic Spring switchs and the conducting wire 40a in tube body 11a.
Referring again to Fig. 7 and Fig. 8, for the three-dimensional appearance schematic diagram and magnetic induction switch of the another embodiment of corking of the present invention The sectional view of another embodiment.The present embodiment is roughly the same with previous embodiment, and magnetic induction switch 1b includes a Switch main body 10b, a magnetic reed switch (not shown), a corking 30b, two conducting wire 40b and a packaging plastic 50b.And corking 30b is formed at least One glue injection part 31b and at least a location division 32b, wherein, glue injection part 31b and location division 32b are all arranged to a circular hole.This reality Apply example and be the structure setting pattern of corking 30b with previous embodiment difference.
As shown in fig. 7, in this present embodiment, corking 30b is connected by two retractable semicolumn 30b ' to be formed, respectively should Semicolumn 30b ' has been separately formed continuous wavy groove group 300b in opposite one side, corking 30b this 2 half Two grooves group 300b can be made to be collectively forming glue injection part 31b and location division 32b after cylinder 30b ' pairings.
More specifically, respectively groove group 300b includes an injecting glue groove 31b ', two positioning groove 32b ' and a build-in Groove 33b ', wherein, the injecting glue groove 31b ' and positioning groove 32b ' are all arranged to a semi-circular hole.Corking 30b this two Can make after semicolumn 30b ' pairings two grooves group 300b be collectively forming spaced glue injection part 31b, two location division 32b and One fitting portion 33b, wherein, two location division 32b is between glue injection part 31b and fitting portion 33b.
Fig. 8 is refer to, two conducting wire 40b is respectively positioned in the 32b of two location division, and packaging plastic 50b is from the glue injection part 31b injects tube body 11b, injects tube body 11b up to after a certain amount of after packaging plastic 50b, packaging plastic 50b is at least partly exposed Go out glue injection part 31b and fitting portion 33b.The two semicolumns 30b ' is filled in fitting portion 33b by packaging plastic 50b to tie Close.In addition, packaging plastic 50b can completely coat magnetic reed switch and the conducting wire 20b in tube body 11b.
The foregoing is merely presently preferred embodiments of the present invention, is not used to determine the scope of the claims of the present invention, other use this hair The equivalence changes of bright patent spirit, should all belong to the scope of the claims of the present invention.

Claims (10)

  1. A kind of 1. magnetic induction switch, it is characterised in that including:
    One Switch main body, the tube body comprising hollow form are simultaneously open with one;
    One magnetic reed switch, is arranged in the tube body, and the magnetic reed switch has two to connect a little;
    One corking, and there is resilient clamping force as made by elastic material, and which is filled in a manner of tight fit opens at this admittedly In mouthful, and the corking forms at least glue injection part that can connect the tubular body and an at least location division;
    Two conducting wires, are set in the tube body, one end of two conducting wire connect respectively wherein one this connect point, other end through should Location division and extend project to outside the tube body;And
    One packaging plastic, flows into the tube body from the glue injection part, which completely coats the magnetic reed switch and positioned at the tube body Internal conducting wire, and the packaging plastic is at least partly convex exposes the glue injection part.
  2. 2. magnetic induction switch as claimed in claim 1, it is characterised in that the corking has the thickness for meeting electric apparatus safety specification scope Degree.
  3. 3. magnetic induction switch as claimed in claim 1, it is characterised in that the corking have two glue injection parts, two location divisions and Multiple exhausting-gas holes, two glue injection part are symmetrically arranged amongst the dual side-edge of two location division;Those exhausting-gas holes are symmetricly set in couples The respectively opposite dual side-edge in the location division.
  4. 4. magnetic induction switch as claimed in claim 3, it is characterised in that the corking, which has from the location division, extends to the corking The opening that is formed of lateral margin, respectively the conducting wire be forced into the location division from the opening and be subject to depending on the resilient clamp of the location division Position.
  5. 5. magnetic induction switch as claimed in claim 3, it is characterised in that the corking forms spaced two hollow slots, The hollow slots are formed by the glue injection part and to the location division, and respectively the hollow slots include a glue injection part and connect the glue injection part One location division.
  6. 6. claim magnetic induction switch as described in 5, it is characterised in that the location division extends to the corking from the glue injection part Lateral margin and formed with one opening, respectively the conducting wire is forced into the location division from the opening and is subject to depending on the resilient clamp of the location division Position.
  7. 7. magnetic induction switch as claimed in claim 1, it is characterised in that the corking is connected structure by two retractable semicolumns Into respectively the semicolumn has been separately formed continuous wavy groove group in opposite one side, and the corking is in two semicolumn The two grooves group can be made to be collectively forming the glue injection part and the location division after pairing.
  8. 8. magnetic induction switch as claimed in claim 7, it is characterised in that respectively the groove group includes an injecting glue groove, two positioning Groove and an embedded slot, the corking can make the two grooves group be collectively forming a spaced injecting glue after the two semicolumns pairing Portion, two location divisions and a fitting portion, the two positioning position is between the glue injection part and the fitting portion.
  9. 9. magnetic induction switch as claimed in claim 1, it is characterised in that the outer edge surface of the corking is equipped with one first engaging portion, The internal face of the tube body corresponds to first engaging portion and has one second engaging portion, the corking by first engaging portion and this Two engaging portions with reference to and be fixed on the tube body.
  10. 10. magnetic induction switch as claimed in claim 1, it is characterised in that further include the floating ball that is set in outside the tube body and The catch outside the tube body is can be positioned on, which is supported by the gear of the catch and will not remove the tube body.
CN201610914781.4A 2016-10-20 2016-10-20 Magnetic induction switch Pending CN107968019A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610914781.4A CN107968019A (en) 2016-10-20 2016-10-20 Magnetic induction switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610914781.4A CN107968019A (en) 2016-10-20 2016-10-20 Magnetic induction switch

Publications (1)

Publication Number Publication Date
CN107968019A true CN107968019A (en) 2018-04-27

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ID=61997209

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610914781.4A Pending CN107968019A (en) 2016-10-20 2016-10-20 Magnetic induction switch

Country Status (1)

Country Link
CN (1) CN107968019A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109781206A (en) * 2019-03-19 2019-05-21 艾礼富电子(深圳)有限公司 The assemble method and vehicle of a kind of liquid level sensor, liquid level sensor

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2328119Y (en) * 1997-04-29 1999-07-07 上海电话线路器材总厂 Sealing structure of cable connection arrangement
CN2729980Y (en) * 2004-09-28 2005-09-28 庞英甫 Cable connection sealing end and oil-filled communication cable connection sleeve
CN2788341Y (en) * 2005-03-30 2006-06-14 李长紫 Non-contact magnetic reed switch
CN2840308Y (en) * 2005-09-14 2006-11-22 志鼎资讯股份有限公司 Integrated formed magnetic spring liquid level switch
CN201174543Y (en) * 2008-04-02 2008-12-31 中国北车集团大同电力机车有限责任公司 Inner and outer electric cable of locomotive chamber or sealing construction for pipe to get through wall
CN205487940U (en) * 2016-03-23 2016-08-17 济南尼尔森气动元件有限公司 Floating ball type liquid level switch
CN206179777U (en) * 2016-10-20 2017-05-17 上海凡宜科技电子有限公司 Magnetic inductive switch

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2328119Y (en) * 1997-04-29 1999-07-07 上海电话线路器材总厂 Sealing structure of cable connection arrangement
CN2729980Y (en) * 2004-09-28 2005-09-28 庞英甫 Cable connection sealing end and oil-filled communication cable connection sleeve
CN2788341Y (en) * 2005-03-30 2006-06-14 李长紫 Non-contact magnetic reed switch
CN2840308Y (en) * 2005-09-14 2006-11-22 志鼎资讯股份有限公司 Integrated formed magnetic spring liquid level switch
CN201174543Y (en) * 2008-04-02 2008-12-31 中国北车集团大同电力机车有限责任公司 Inner and outer electric cable of locomotive chamber or sealing construction for pipe to get through wall
CN205487940U (en) * 2016-03-23 2016-08-17 济南尼尔森气动元件有限公司 Floating ball type liquid level switch
CN206179777U (en) * 2016-10-20 2017-05-17 上海凡宜科技电子有限公司 Magnetic inductive switch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109781206A (en) * 2019-03-19 2019-05-21 艾礼富电子(深圳)有限公司 The assemble method and vehicle of a kind of liquid level sensor, liquid level sensor

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Application publication date: 20180427