CN202403767U - Photoelectric-type liquid level sensor - Google Patents
Photoelectric-type liquid level sensor Download PDFInfo
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- CN202403767U CN202403767U CN2012200164915U CN201220016491U CN202403767U CN 202403767 U CN202403767 U CN 202403767U CN 2012200164915 U CN2012200164915 U CN 2012200164915U CN 201220016491 U CN201220016491 U CN 201220016491U CN 202403767 U CN202403767 U CN 202403767U
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- water tank
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- receiving tube
- tube
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Abstract
The utility model discloses a photoelectric-type liquid level sensor, used for detecting the liquid level of a machine, wherein the machine comprises a water tank and a support seat, and the water tank is arranged in the support seat; the photoelectric-type liquid level sensor comprises a light-emitting tube, a light-receiving tube, a connecting wire and a connecting body, the light-emitting tube and the light-receiving tube are fixedly arranged with the support seat via the connecting body, and receive or output a signal via the connecting wire respectively; and bulges are arranged on the water tank and at positions corresponding to the light-emitting tube and the light-receiving tube. Compared with the prior art, the photoelectric-type liquid level sensor disclosed by the utility model is simple in structure and high in sensitivity.
Description
Technical field
The utility model relates to the liquid level sensor technical field, specifically, is meant a kind of photoelectric level transducer.
Background technology
In present daily life, many household electrical appliance all need be used water, and like humidifier, dehumidifier, air-conditioning fan, humidifying air-conditioner etc., electrical equipment can use water tank or water pond to be filled with water in use, fill it up with or water when exhausting when water, need corresponding signal and produce.Usually, water tank or water pond all can the person of being used be taken out external dress water of machine or pouring, and this moment, the water level detecting of water tank or water pond can't be accomplished with common integral type level switch.Current pick-up unit commonly used is as shown in Figure 1, its include tongue tube 1 ', float 2 ', tongue tube 1 ' be located at bearing 3 ' in; Float 2 ' in be provided with magnet 4 ', float 2 ' be located at water tank 5 ' in, water tank 5 ' in be provided with float pipe position 6 '; This device, float 2 ' with tongue tube 1 ' be split-type structural, when water level rises or drops to a certain height; Make tongue tube 1 ' two interior contact adhesive or disconnections, thereby make the state of electrical equipment perception water level, still; This liquid level cognitive method shortcoming has: the one, and working sensitivity is poor, is prone to misoperation; The 2nd, float 2 ' accumulate incrustation scale easily and stuck inefficacy; The 3rd, float 2 ' with that float pipe position 6 ' guiding takies water tank 5 ' space is big is prone to dirty and cleaning difficulty etc.
The utility model content
The purpose of the utility model is to provide a kind of photoelectric level transducer, and it can overcome existing defective, and its sensitivity is good.
For realizing above-mentioned purpose, the utility model adopts following technical scheme:
A kind of photoelectric level transducer is used for the liquid level of detection machine, and described machine includes water tank and bearing, and described water tank is located in the described bearing; It comprises light-emitting tube, light receiving tube, tie and connector; Described light-emitting tube and light receiving tube set firmly through described connector and described bearing, and described light-emitting tube and light receiving tube receive through described tie respectively or the output signal; On the described water tank,, be provided with convexity with described light-emitting tube and the corresponding position of light receiving tube.
So-called corresponding position is meant, along the axially pairing position on water tank of the axis of the axis of light-emitting tube and light receiving tube; That is, the axis of light-emitting tube with the axis of light receiving tube, is parallel, along the axially position of correspondence on water tank of two parallel lines.
Preferably; Above-mentioned connector; It comprises sensor housing and sensor bonnet, and described sensor housing is fastened on the described bearing, and described light-emitting tube and light receiving tube are located in the described sensor housing; Described sensor bonnet is fastened on an end of described sensor housing, and described sensor bonnet is provided with the through hole that supplies described tie to pass.
Preferably; Above-mentioned connector, it comprises sensor housing and epoxy resin, described sensor housing is fastened on the described bearing; Described light-emitting tube and light receiving tube are located in the described sensor housing, and described epoxy resin is filled in the described sensor housing.
Preferably; Above-mentioned connector, it is the sensor bonnet, described light-emitting tube and light receiving tube are located in the through hole of described bearing; Described sensor bonnet is fastened on the through hole port of described bearing, and described sensor bonnet is provided with the through hole that supplies described tie to pass.
Preferably, above-mentioned connector, it is an epoxy resin, and described light-emitting tube and light receiving tube are located in the through hole of described bearing, and described epoxy resin is filled in the described through hole.
Preferably, above-mentioned convexity and water tank are integral structure.
Preferably, above-mentioned convexity and water tank are split-type structurals, and through ultrasonic connection setting.
Preferably, be provided with O-ring seal between above-mentioned convexity and water tank.
Preferably, above-mentioned convexity is configured as rectangular pyramid body or hemisphere or hemisphere cylinder or triangular prism.
Preferably, the cross section of above-mentioned convexity is a triangle, and with described light-emitting tube and light receiving tube over against the angle be 90 degree.
After adopting technique scheme, during use, when there is water the water tank the inside, water logging convexity, from the light that light-emitting tube emits, can inject in the water, light receiving tube does not receive light, can signal away, can know this moment, there is water the water tank the inside.In water tank, there is not water; When light-emitting tube emits beam, can direct projection arrive protruding inside surface, can be reflexed on the light receiving tube by protruding inside surface; Promptly when light receiving tube can be received reflected light; Promptly do not have water or water to do soon in the water tank this moment, at this moment, light receiving tube sends alerting signal through tie.This is novel, because it is arranged on the bearing, therefore, when the water tank person of being used takes out use, does not also influence this novel structure.Compare with existing, this new structure is simple, and highly sensitive.
Description of drawings
Fig. 1 is the structural representation of existing split type liquid level sensor;
Fig. 2 is the schematic top plan view of the utility model when water is arranged;
Fig. 3 is the front view of the utility model when water is arranged;
Fig. 4 is the vertical view of the utility model when not having water;
Fig. 5 is the front view of the utility model when not having water;
Fig. 6 is the structural representation of the water tank of the utility model embodiment two;
Fig. 7 is the structural representation of the water tank of the utility model embodiment three;
Fig. 8 is the structural representation of the water tank of the utility model embodiment four;
Fig. 9 is the structural representation of the water tank of the utility model embodiment five;
Figure 10 is the structural representation of the protruding embodiment one of the utility model;
Figure 11 is the structural representation of the protruding embodiment two of the utility model;
Figure 12 is the structural representation of the protruding embodiment three of the utility model;
Figure 13 is the structural representation of the protruding embodiment four of the utility model;
Figure 14 is the vertical view of the embodiment one of the utility model connector;
Figure 15 is the front view of the embodiment one of the utility model connector;
Figure 16 is the vertical view of the embodiment two of the utility model connector;
Figure 17 is the front view of the embodiment two of the utility model connector;
Figure 18 is the vertical view of the embodiment three of the utility model connector;
Figure 19 is the vertical view of the embodiment three of the utility model connector;
Figure 20 is the vertical view of the embodiment four of the utility model connector;
Figure 21 is the front view of the embodiment four of the utility model connector.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
With reference to shown in Figure 2, this is novel to disclose a kind of photoelectric level transducer, is used for the liquid level of detection machine, and this machine includes water tank 1 and bearing 2, and water tank 1 is located in the bearing 2; This liquid level sensor comprises light-emitting tube 3, light receiving tube 4, tie 5 and connector 6, wherein:
Light-emitting tube 3 sets firmly through connector 6 and bearing 2 with light receiving tube 4, and light-emitting tube 3 receives or the output signal through tie 5 respectively with light receiving tube 4; On the water tank 1, the position corresponding with light-emitting tube 3 and light receiving tube 4 is provided with protruding 11.
When there is water water tank 1 the inside, cooperate shown in Figure 3, water logging protruding 11, from the light that light-emitting tube 3 emits, can inject in the water, light receiving tube 4 does not receive light, can signal away, can know this moment, there is water water tank 1 the inside.With reference to figure 4, shown in 5, at this moment, there is not water in the water tank 1; When light-emitting tube 3 emits beam, can direct projection arrive protruding 11 inside surface, can be reflexed on the light receiving tube 4 by protruding 11 inside surface; Promptly when light receiving tube 4 can be received reflected light; Promptly do not have water or water to do soon in the water tank 1 this moment, at this moment, light receiving tube 4 sends alerting signal through tie 5.
This is novel, because it is arranged on the bearing 2, therefore, when water tank 1 person of being used takes out use, does not also influence this novel structure.Compare with existing, this new structure is simple, and highly sensitive.
In the present embodiment, water tank 1 is integral structures with protruding 11, and therefore, water tank 1 is that transparent material is made.And in the present embodiment, protruding 11 cross section is to be configured as triangle, and with the angle of light-emitting tube 3 and light receiving tube 4, be an angle of 90 degrees.Like this, the light that can light-emitting tube 3 emitted, the center of reflected light receiving tube 4.
Embodiment two:
With reference to shown in Figure 6, in the present embodiment, water tank 1 is split-type structurals with protruding 11, and protruding 11 is independent parts, and whether the material of water tank 1 is transparent, and it doesn't matter.Protruding 11 is that ultrasonic connection through from inside to outside is arranged on the water tank 1.
Embodiment three:
With reference to shown in Figure 7, to compare with embodiment two, difference is that the inwall of water tank 1 and 11 of convexities are provided with O-ring seal 7.
Embodiment four:
With reference to shown in Figure 8, to compare with embodiment two, its difference is, protruding 11 is that ultrasonic connecting mode through ecto-entad is arranged on the water tank 1.
Embodiment five:
With reference to shown in Figure 9, to compare with embodiment four, its difference is that 11 of the outer wall of water tank 1 and convexities are provided with O-ring seal 7.
In addition, with reference to Figure 10,11,12, shown in 13, when implementing, the structure that convexity 11 can be configured as to rectangular pyramid body or hemisphere or hemisphere cylinder or triangular prism or other type.
With reference to Figure 14, shown in 15; In the present embodiment, connector 6, it comprises sensor housing 61 and sensor bonnet 62; Sensor housing 61 is fastened on the bearing 2; Light-emitting tube 3 is located in the sensor housing 61 with light receiving tube 4, and sensor bonnet 62 is fastened on an end of sensor housing 61, and sensor bonnet 62 is provided with the through hole that supplies tie 5 to pass.
The connector 6 of this structure is installed very conveniently, can be directly installed on the bearing 2, does not need bonding wire etc.
With reference to Figure 16, shown in 17, in the present embodiment, connector 6; It comprises sensor housing 61 and epoxy resin 63; Sensor housing 61 is fastened on the bearing 2, and light-emitting tube 3 is located in the sensor housing 61 with light receiving tube 4, and epoxy resin 63 is filled in the sensor housing 61.
The connector 6 of this structure, intensity is high, and anti-seismic performance is good, in addition, also has waterproof, fixing effect.
With reference to Figure 18, shown in 19, in the present embodiment, connector 6; It is a sensor bonnet 64; Light-emitting tube 3 is located in the through hole of bearing 2 with light receiving tube 4, and sensor bonnet 61 is fastened on the through hole port of bearing 2, and sensor bonnet 64 is provided with the through hole that supplies tie 5 to pass.
The connector 6 of this structure, simple in structure, easy for installation.
With reference to Figure 20, shown in 21, in the present embodiment, connector 6, it is an epoxy resin 65, and light-emitting tube 3 is located in the through hole of bearing 2 with light receiving tube 4, and epoxy resin 65 is filled in the through hole of bearing 2.
The connector 6 of this structure, simple in structure, easy for installation.
The above; Be merely the preferable embodiment of the utility model type; But the protection domain of the utility model type is not limited thereto; Any technician who is familiar with the present technique field is in the technical scope that the utility model type discloses, and the variation that can expect easily or replacement all should be encompassed within the protection domain of the utility model type.Therefore, the protection domain of the utility model type should be as the criterion with the protection domain of claim.
Claims (10)
1. photoelectric level transducer is used for the liquid level of detection machine, and described machine includes water tank and bearing, and described water tank is located in the described bearing; It is characterized in that: it comprises light-emitting tube, light receiving tube, tie and connector; Described light-emitting tube and light receiving tube set firmly through described connector and described bearing, and described light-emitting tube and light receiving tube receive through described tie respectively or the output signal; On the described water tank,, be provided with convexity with described light-emitting tube and the corresponding position of light receiving tube.
2. photoelectric level transducer according to claim 1; It is characterized in that: described connector; It comprises sensor housing and sensor bonnet, and described sensor housing is fastened on the described bearing, and described light-emitting tube and light receiving tube are located in the described sensor housing; Described sensor bonnet is fastened on an end of described sensor housing, and described sensor bonnet is provided with the through hole that supplies described tie to pass.
3. photoelectric level transducer according to claim 1; It is characterized in that: described connector; It comprises sensor housing and epoxy resin; Described sensor housing is fastened on the described bearing, and described light-emitting tube and light receiving tube are located in the described sensor housing, and described epoxy resin is filled in the described sensor housing.
4. photoelectric level transducer according to claim 1; It is characterized in that: described connector; It is the sensor bonnet; Described light-emitting tube and light receiving tube are located in the through hole of described bearing, and described sensor bonnet is fastened on the through hole port of described bearing, and described sensor bonnet is provided with the through hole that supplies described tie to pass.
5. photoelectric level transducer according to claim 1 is characterized in that: described connector, and it is an epoxy resin, and described light-emitting tube and light receiving tube are located in the through hole of described bearing, and described epoxy resin is filled in the described through hole.
6. according to the arbitrary described photoelectric level transducer of claim 1～5, it is characterized in that: described convexity and water tank are integral structure.
7. according to the arbitrary described photoelectric level transducer of claim 1～5, it is characterized in that: described convexity and water tank are split-type structurals, and through ultrasonic connection setting.
8. photoelectric level transducer according to claim 7 is characterized in that: be provided with O-ring seal between described convexity and water tank.
9. photoelectric level transducer according to claim 6 is characterized in that: described convexity is configured as rectangular pyramid body or hemisphere or hemisphere cylinder or triangular prism.
10. photoelectric level transducer according to claim 6 is characterized in that: the cross section of described convexity is a triangle, and with described light-emitting tube and light receiving tube over against the angle be 90 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200164915U CN202403767U (en) | 2012-01-13 | 2012-01-13 | Photoelectric-type liquid level sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200164915U CN202403767U (en) | 2012-01-13 | 2012-01-13 | Photoelectric-type liquid level sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202403767U true CN202403767U (en) | 2012-08-29 |
Family
ID=46701409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200164915U Expired - Lifetime CN202403767U (en) | 2012-01-13 | 2012-01-13 | Photoelectric-type liquid level sensor |
Country Status (1)
| Country | Link |
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| CN (1) | CN202403767U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557906A (en) * | 2013-11-22 | 2014-02-05 | 深圳市能点科技有限公司 | Liquid level sensor and fish tank liquid level control device |
| CN103807885A (en) * | 2012-11-06 | 2014-05-21 | 广东美的厨房电器制造有限公司 | Steam microwave oven |
| WO2018111554A1 (en) * | 2016-12-12 | 2018-06-21 | Illinois Tool Works, Inc. | Optical level sensor for wash aid removable container |
| CN109154521A (en) * | 2016-04-08 | 2019-01-04 | 流线公司 | Ultrasonic liquid level sensor with reflector |
-
2012
- 2012-01-13 CN CN2012200164915U patent/CN202403767U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807885A (en) * | 2012-11-06 | 2014-05-21 | 广东美的厨房电器制造有限公司 | Steam microwave oven |
| CN105444220A (en) * | 2012-11-06 | 2016-03-30 | 广东美的厨房电器制造有限公司 | Steam microwave oven |
| CN103557906A (en) * | 2013-11-22 | 2014-02-05 | 深圳市能点科技有限公司 | Liquid level sensor and fish tank liquid level control device |
| CN109154521A (en) * | 2016-04-08 | 2019-01-04 | 流线公司 | Ultrasonic liquid level sensor with reflector |
| CN109154521B (en) * | 2016-04-08 | 2021-07-13 | 流线公司 | Ultrasonic level sensor with reflector and method for calibrating ultrasonic transducer |
| WO2018111554A1 (en) * | 2016-12-12 | 2018-06-21 | Illinois Tool Works, Inc. | Optical level sensor for wash aid removable container |
| US10641639B2 (en) | 2016-12-12 | 2020-05-05 | Illinois Tool Works Inc. | Optical level sensor for wash aid removable container |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120829 |
|
| CX01 | Expiry of patent term |