CN208225799U - Novel liquid level switch - Google Patents
Novel liquid level switch Download PDFInfo
- Publication number
- CN208225799U CN208225799U CN201820898965.0U CN201820898965U CN208225799U CN 208225799 U CN208225799 U CN 208225799U CN 201820898965 U CN201820898965 U CN 201820898965U CN 208225799 U CN208225799 U CN 208225799U
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- CN
- China
- Prior art keywords
- level switch
- liquid
- printed circuit
- shell
- induction head
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- 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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Abstract
The utility model relates to sensor technical fields, especially a kind of novel liquid level switch, including printed circuit board in the tube-like envelope of both ends open is arranged in, the printed circuit front edge of board is electrically connected with induction head, the printed circuit board tail end is electrically connected with shielded cable, the shielded cable outer sheath is equipped with plastic lid, and the plastic lid is fixedly connected with shell tail end.After adopting the above structure, the utility model liquid-level switch front end is chimeric by induction head shell, and tail end is closed by plastic lid, and is encapsulated by casting glue, improves the leakproofness of liquid-level switch；Because liquid-level switch can effectively promote the waterproof performance of liquid-level switch in a liquid in this way；In addition, induction head shell be arranged to it is bullet-shaped so that liquid-level switch head is more wear-resisting and hard.
Description
Technical field
The utility model relates to sensor technical field, especially a kind of novel liquid level switch.
Background technique
Traditional liquid-level switch is most of to fail due to its internal tongue tube ruptures, and liquid is found to be after further verifying
Bit switch internal flaw, i.e. tongue tube are welded on lead, are then placed in the stainless-steel pipe that internal diameter is 6mm, this structure is not
The positioning being easy between tongue tube and permanent magnet is easy to make switch motion apart from overproof.And when assembly deviation, tongue tube can spray
To liquid-level switch steel pipe inner wall, at this point, easily leading to tongue tube inside liquid-level switch if production process and turnover are dealt with improperly
Vitreum is impaired and fails.
203491188 U of Chinese utility model patent CN discloses a kind of liquid-level switch, including stainless-steel pipe, dry spring
Pipe, pcb board and floating ball, tongue tube and pcb board are mounted on inside stainless steel tube, and floating ball is sleeved on the outside of stainless steel tube.Liquid
Switch further includes double-walled waterproof heat-shrinkable T bush, and the double-walled waterproof heat-shrinkable T bush is sleeved on the outside of the tongue tube.The PCB
Be arranged on plate it is fluted, the double-walled waterproof shrinkable sleeve mounted in the PCB groove in.
Summary of the invention
The utility model technical issues that need to address are to provide a kind of liquid-level switch of good seal performance.
In order to solve the above technical problems, the novel liquid level switch of the utility model, the pipe including both ends open is arranged in
Printed circuit board in shape shell, the printed circuit front edge of board are electrically connected with induction head, the printed circuit board tail end and screen
Cable electrical connection is covered, the shielded cable outer sheath is equipped with plastic lid, and the plastic lid is fixedly connected with shell tail end.
Further, casting glue is filled between the printed circuit board and plastic lid and shell.
Further, it is provided with bullet-shaped induction head shell on the outside of the induction head, the induction head shell is embedding
It closes in case nose.
After adopting the above structure, the utility model liquid-level switch front end is chimeric by induction head shell, and tail end passes through modeling
Material lid closing, and encapsulated by casting glue, improve the leakproofness of liquid-level switch；Because liquid-level switch is used in a liquid, in this way
The waterproof performance of liquid-level switch can effectively be promoted；In addition, induction head shell be arranged to it is bullet-shaped so that liquid-level switch head
Portion is more wear-resisting and hard.
Detailed description of the invention
Utility model will be further described in detail below with reference to the attached drawings and specific embodiments.
Fig. 1 is the structural schematic diagram of the utility model novel liquid level switch.
In figure: 1 is induction head, and 2 be induction head shell, and 3 be printed circuit board, and 4 be shell, and 5 be casting glue, and 6 are
Plastic lid, 7 be shielded cable
Specific embodiment
As shown in Figure 1, the novel liquid level switch of the utility model, including being arranged in the tube-like envelope 4 of both ends open
Printed circuit board 3,3 front end of printed circuit board are electrically connected with induction head 1,3 tail end of printed circuit board and shielding electricity
Cable 7 is electrically connected, and 7 outer sheath of shielded cable is equipped with plastic lid 6, and the plastic lid 6 is fixedly connected with 4 tail end of shell, described
Casting glue 5 is filled between printed circuit board 3 and plastic lid 6 and shell 4.Liquid-level switch front end passes through induction head shell 2
Chimeric, tail end is closed by plastic lid 6, and is encapsulated by casting glue 5, and the leakproofness of liquid-level switch is improved；Because liquid level is opened
It closes in a liquid, can effectively promote the waterproof performance of liquid-level switch in this way.
Further, because the induction head shell of liquid-level switch is easy to be in contact or collide with external object, in order to
So that the induction head shell of liquid-level switch front end is more hard and wear-resisting, bullet-shaped sense is provided on the outside of the induction head
Head shell 2 is answered, the induction head shell 2 is entrenched in 4 front end of shell.
Although those skilled in the art should manage the foregoing describe specific embodiment of the present utility model
Solution, these are merely examples, various changes or modifications can be made to present embodiment, without departing from the original of the utility model
Reason and essence, the protection scope of the utility model are only limited by the claims that follow.
Claims (3)
1. a kind of novel liquid level switch, including printed circuit board in the tube-like envelope of both ends open is arranged in, it is characterised in that: institute
It states printed circuit front edge of board to be electrically connected with induction head, the printed circuit board tail end is electrically connected with shielded cable, the shielding
Cable outer sheath is equipped with plastic lid, and the plastic lid is fixedly connected with shell tail end.
2. novel liquid level switch described in accordance with the claim 1, it is characterised in that: the printed circuit board and plastic lid and shell
Between be filled with casting glue.
3. novel liquid level switch described in accordance with the claim 1, it is characterised in that: be provided on the outside of the induction head bullet-shaped
Incude head shell, the induction head shell is entrenched in case nose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820898965.0U CN208225799U (en) | 2018-06-11 | 2018-06-11 | Novel liquid level switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820898965.0U CN208225799U (en) | 2018-06-11 | 2018-06-11 | Novel liquid level switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208225799U true CN208225799U (en) | 2018-12-11 |
Family
ID=64505061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820898965.0U Active CN208225799U (en) | 2018-06-11 | 2018-06-11 | Novel liquid level switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208225799U (en) |
-
2018
- 2018-06-11 CN CN201820898965.0U patent/CN208225799U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |