CN218238985U - Soaking type liquid level detection electrode - Google Patents
Soaking type liquid level detection electrode Download PDFInfo
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- CN218238985U CN218238985U CN202222699903.6U CN202222699903U CN218238985U CN 218238985 U CN218238985 U CN 218238985U CN 202222699903 U CN202222699903 U CN 202222699903U CN 218238985 U CN218238985 U CN 218238985U
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Abstract
The utility model discloses a soaking type liquid level detection electrode, which relates to the sensing field, and adopts the technical scheme that the electrode comprises a shell and a plate electrode arranged in the shell, wherein the plate electrode is provided with an electrode A and an electrode B, and the electrode A and the electrode B are respectively and electrically connected with two wiring ends at the same end part of the shell; the shell is a rectangular body, the long axis of the shell is parallel to the long axis of the electrode plate, one side plate of the shell is used as an installation plate of the electrode plate, the electrode plate is arranged close to the installation plate, and the electrode plate is parallel to the installation plate; the outer side of the electrode plate is coated with a protective sleeve. The beneficial effects of the utility model are that, the form of the adoption plate electrode overcoat protective sheath cover of this scheme has both realized the electrode surface area maximize in the unit size, has also improved precision, the water-proof effects that product sensitivity, liquid level were surveyed. Meanwhile, the material and the manufacturing cost are lower, and the method is suitable for batch production.
Description
Technical Field
The utility model relates to a sensing equipment field specifically is a soak formula liquid level detection electrode.
Background
The capacitance type liquid level sensor judges the rising position of the liquid level by judging the capacitance between capacitance type electrodes of the sensor and the detected capacitance value. The capacitive electrode generally comprises two electrodes of a capacitor, wherein the two electrodes are realized by using rod-shaped (rod-shaped) or ring-shaped appearances, metal stickers and copper sheets paved on a PCB (printed circuit board), and in short, the two electrodes are frequently made into a special appearance according to the size or shape requirement of a product application, and the overall principle is consistent.
Between two parallel metal electrodes, the capacitance is: c = ε A/d, where ε is the dielectric constant of the dielectric between the capacitor plates, A is the area covered by the two parallel plates, and d is the distance between the two parallel plates. When the surface area and relative position of the electrodes are not changed, the detected liquid level heights correspond to different dielectric constants, namely different capacitance values.
However, since the two electrodes for sensing the capacitance in the electrode plates are part of the circuit, they are generally required not to be in direct contact with the liquid, and therefore, they are usually only attached to the outer wall of the container for the liquid to be measured. This kind of detection mode of hugging closely the outer wall can be subject to the material and the wall thickness of container, and in the aspect of the material, it can only pierce through non-metallic material, and the unable perception of metal material is electric capacity change, and most container wall thickness all generally all surpass 1.5mm in the aspect of the wall thickness, leads to sensor sensitivity not enough, will increase to bigger detection area. Or a rod-shaped or rod-shaped electrode is adopted, and the electrode is soaked into liquid after the surface of the electrode is wrapped by a waterproof sleeve, so that the capacitance values of different liquid level heights are sensed. Even if the rod-shaped or rod-shaped electrode is wrapped by the waterproof layer, immersion detection is realized, but the problem that the surface area of the electrode is too small still exists, the sensitivity is also insufficient, and the material cost of the rod-shaped or rod-shaped electrode is obviously increased if larger surface area of the electrode is achieved.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model provides a soak formula liquid level detection electrode solves the problem that detection electrode can't obtain big area of contact simultaneously under the good state of waterproof construction.
In order to achieve the above object, the utility model provides a following technical scheme: a soaking type liquid level detection electrode comprises a shell and an electrode plate arranged in the shell, wherein an electrode A and an electrode B are arranged on the electrode plate, and the electrode A and the electrode B are respectively and electrically connected with two wiring terminals at the same end part of the shell; the shell is a rectangular body, the long axis of the shell is parallel to the long axis of the electrode plate, one side plate of the shell is used as an installation plate of the electrode plate, the electrode plate is arranged close to the installation plate, and the electrode plate is parallel to the installation plate;
one side of the shell, which is parallel to the mounting plate, is a large open side, and the two sides of the shell, which are adjacent to the mounting plate, are provided with the wiring terminals, and the other side of the shell is a small open side;
and the outer side of the electrode plate is coated with a protective sleeve.
The electrode plate adopts a PCB electrode plate, two parallel electrodes A and B are arranged on the PCB, a space is reserved between the electrodes A and B, and the electrodes A and B are rectangular strips.
Preferably, the protective sleeve is a rubber sleeve.
Preferably, the shell comprises the mounting plate, two parallel plates are arranged at the edge of the upper side of the mounting plate, one ends of the two parallel plates are connected through a middle plate, and the other end of the two parallel plates is the small open side;
the side of the two parallel plates away from the mounting plate is the large open side.
Preferably, the wiring terminal comprises an L-shaped wiring rod, one end of the wiring rod penetrates through the middle plate and extends into the shell, and the other end of the wiring rod is positioned outside the shell;
one end of the wiring rod positioned in the shell is electrically connected with the electrode plate;
the connecting plate is arranged at the end part, located outside the shell, of one end of the connecting rod and is a circular plate body, and the outer diameter of the connecting plate is larger than that of the connecting rod.
Preferably, the upper edges of the parallel plates are obliquely arranged, one end of the parallel plates close to the middle plate is a high-level end, and the other end of the parallel plates far away from the middle plate is a low-level end.
Preferably, a support plate is arranged on one side of the parallel plate facing the interior of the shell;
the support plate is provided with a right-angle groove towards one side of the inside of the shell, and the electrode plate is embedded in the right-angle groove.
Preferably, a reinforcing plate is arranged in the shell and is parallel to the middle plate;
the reinforcing plate is arranged close to the middle plate;
the plate body of the reinforcing plate is provided with an insertion hole corresponding to the wiring rod of the wiring end.
Preferably, one side of the middle plate facing the shell is inserted with a cover cap;
the outside of medium plate sets up the framework, and the jack is seted up at the framework middle part, one side that the shroud faced the medium plate corresponds the jack and sets up the inserted block.
Compared with the prior art, the method has the following beneficial effects: the electrode plate outer sleeve protection sleeve is adopted, so that the maximization of the surface area of the electrode in unit size is realized, and the product sensitivity, the liquid level detection precision and the waterproof effect are improved. Meanwhile, the method has lower material and manufacturing cost, is suitable for batch production, and can be widely applied to household appliances and industrial automatic production. Such as air conditioners, refrigerators, humidifiers, mopping machines, water purifiers, coffee machines, drinking water machines, water heaters, automatic feeding production lines and the like.
Drawings
Fig. 1 is a schematic diagram of an explosion structure of an embodiment of the present invention;
FIG. 2 is a front view of an embodiment of the present invention;
fig. 3 is a bottom view of an embodiment of the present invention;
fig. 4 is a right side view of an embodiment of the present invention;
fig. 5 is a cross-sectional view of an embodiment of the present invention.
In the figure:
1. a housing; 11. mounting a plate; 12. parallel plates; 13. a middle plate; 14. a support plate; 15. a reinforcing plate; 2. an electrode plate; 3. a terminal; 31. a connecting plate; 4. a protective sleeve; 5. a cover; 6. a limiting block; 7. and (5) positioning the rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
Referring to fig. 1-5, the present invention provides the following technical solutions:
a soaking type liquid level detection electrode comprises a shell 1 and an electrode plate 2 arranged in the shell 1, wherein the electrode plate 2 is provided with an electrode A and an electrode B, and the electrode A and the electrode B are respectively and electrically connected with two wiring terminals 3 at the same end part of the shell; the shell 1 is a rectangular body, the long axis of the shell 1 is parallel to the long axis of the electrode plate 2, one side plate of the shell 1 is taken as an installation plate 11 of the electrode plate 2, the electrode plate 2 is arranged close to the installation plate 11, and the electrode plate 2 is parallel to the installation plate 11; one side of the shell 1 parallel to the mounting plate 11 is a large open side, and two sides adjacent to the mounting plate 11 are provided, wherein one side is provided with the wiring terminal 3, and the other side is a small open side;
the outer side of the electrode plate 2 is coated with a protective sleeve 4.
The electrode plate 2 is a PCB electrode plate, two parallel electrodes A and B are arranged on the PCB, a gap is reserved between the electrodes A and B, and the electrodes A and B are copper foil electrodes.
The protective sleeve 4 is a rubber sleeve.
Through protective sheath 4, play the isolated and insulating function of electrode and liquid, reach waterproof effect simultaneously.
During the use, with 1 lower extreme of casing, it is perpendicular also to be the electrode plate 2 and the 4 subassemblies of protective sheath, then put into to the liquid that needs detected the liquid level with it, on 3 to the liquid level detection modules of upper end welded connection end. So as to realize the function of soaking type liquid level detection.
The feedback formed by the device in the circuit can enable the electrical equipment to sense the linear change of the liquid level in real time with high precision, so as to intelligently and automatically judge whether the action of corresponding load is required or indicate the liquid increase.
This device adopts the PCB plate electrode, can effectively reduce metal electrode's consumptive material consumption, and reduce cost is more obvious when the detection demand of dark liquid level.
This device utilizes the structure of protective sheath parcel plate electrode to reach the maximum surface area as the liquid level detection electrode in the unit area of part, and the structure principle of eager condenser is realizing more meticulous more sensitive liquid level detection effect simultaneously, still possesses very outstanding product uniformity, is fit for the volume production and uses.
Example 2
On the basis of embodiment 1, the housing 1 comprises a mounting plate 11, two parallel plates 12 are arranged on the upper side edge of the mounting plate 11, one ends of the two parallel plates 12 are connected through a middle plate 13, and the other end is a small open side; the side of the two parallel plates 12 away from the mounting plate 11 is the large open side. The upper edges of the parallel plates 12 are obliquely arranged, and one end of the parallel plates 12 close to the middle plate 13 is a high-level end, and the other end far away from the middle plate 13 is a low-level end.
The wiring terminal 3 comprises an L-shaped wiring rod, one end of the wiring rod penetrates through the middle plate 13 and extends into the shell 1, and the other end of the wiring rod is positioned outside the shell 1;
one end of the wiring rod positioned in the shell 1 is electrically connected with the electrode plate 2;
the terminal portion of the one end that the terminal rod is located the casing 1 outside sets up connecting plate 31, and connecting plate 31 is the circular plate body, and the external diameter of connecting plate 31 is greater than the external diameter of terminal rod. The connection plate 31 is used for connecting with an external cable when the electrode is used.
Example 3
On the basis of the above embodiment, the side of the parallel plate 12 facing the inside of the housing 1 is provided with a support plate 14; one side of the support plate 14 facing the inside of the shell 1 is provided with a right-angle groove, and the electrode plate 2 is embedded in the right-angle groove.
A reinforcing plate 15 is arranged in the shell 1, and the reinforcing plate 15 is parallel to the middle plate 13; the reinforcing plate 15 is arranged close to the middle plate 13; the plate body of the reinforcing plate 15 is provided with an insertion hole corresponding to the wiring rod of the wiring end 3. When the terminals 3 are connected, the terminal rods penetrate the middle plate 13 and the reinforcing plate 15, respectively, and then are electrically connected to the electrode plate 2. Through this form, can effectively improve the joint strength of terminal rod.
A limiting block 6 is arranged on one side opposite to the upper edge of the parallel plate 12;
the limiting block 6 is arranged on one side of the parallel plate 12 far away from the middle plate 13;
the distance between the lower side surface of the limiting block 6 and the upper side surface of the groove of the support plate 14 corresponds to the thickness of the protective sleeve 4.
The electrode plate 2 is close to the one end of medium plate 13 and has seted up the locating hole, and mounting panel 11 corresponds the locating hole and is provided with locating lever 7, and the axis of locating lever 7 is perpendicular with the face of mounting panel 11. Combine locating lever 7 and stopper 6, can be fine play the limiting displacement to plate electrode 2 to be convenient for the connection of wiring end 3 and plate electrode 2, and subsequent use is firm of plate electrode 2.
Example 4
On the basis of the above embodiment, the cover 5 is inserted into one side of the middle plate 13 facing the outside of the housing 1; the outer side of the middle plate 13 is provided with a frame body, the middle part of the frame body is provided with an insertion hole, and one side of the cover cap 5 facing the middle plate 13 is provided with an insertion block 51 corresponding to the insertion hole. The socket and the plug 51 may be in a common shape, such as a circle, a rectangle, a regular polygon, or other shapes.
Through holes are formed in the middle of the cover cap 5 and the middle plate 13, and the cover cap and the middle plate can be fixedly connected through bolts on the basis of insertion connection.
In this embodiment, the frame is a rectangular frame, the length of the frame is greater than that of the insertion block 51, the frame extends to one side of the middle plate 13 facing the connection plate 31, the frame protrudes out of the middle plate 13, and after the cover 5 is covered, the end surface of the cover 5 is flush with the end surface of the middle plate 13. In other words, after the cover 5 is mounted, the frame is reserved to form a door-shaped area outside the middle plate 13. The frame body is slightly larger to facilitate insertion of the insert block 51 during assembly.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A soaking type liquid level detection electrode comprises a shell (1) and an electrode plate (2) arranged in the shell (1), wherein the electrode plate (2) is provided with an electrode A and an electrode B, and the electrode A and the electrode B are respectively and electrically connected with two wiring terminals (3) at the same end part of the shell; the battery is characterized in that the shell (1) is a rectangular body, the long axis of the shell (1) is parallel to the long axis of the electrode plate (2), one side plate of the shell (1) is used as an installation plate (11) of the electrode plate (2), the electrode plate (2) is arranged close to the installation plate (11), and the electrode plate (2) is parallel to the installation plate (11);
one side of the shell (1) parallel to the mounting plate (11) is a large open side, and the two sides of the shell adjacent to the mounting plate (11) are provided with the wiring terminal (3), and the other side of the shell is a small open side;
the outer side of the electrode plate (2) is coated with a protective sleeve (4).
2. The immersed level detection electrode according to claim 1, wherein said protective sheath (4) is a rubber sheath.
3. The immersed liquid level detection electrode according to claim 1, wherein the housing (1) comprises the mounting plate (11), two parallel plates (12) are arranged on the upper side edge of the mounting plate (11), one end of each of the two parallel plates (12) is connected through a middle plate (13), and the other end is the small open side;
the side of the two parallel plates (12) far away from the mounting plate (11) is the large open side.
4. The immersed liquid level detection electrode according to claim 3, wherein said terminal (3) comprises an "L" -shaped terminal rod, one end of which penetrates said middle plate (13) and extends to the inside of said housing (1), and the other end of which is located outside of the housing (1);
one end of the wiring rod positioned in the shell (1) is electrically connected with the electrode plate (2);
the one end tip that the terminal rod is located casing (1) outside sets up connecting plate (31), connecting plate (31) are the circular plate body, and the external diameter of connecting plate (31) is greater than the external diameter of terminal rod.
5. The immersed liquid level detection electrode according to claim 4, wherein the upper edge of the parallel plate (12) is disposed obliquely, and the end of the parallel plate (12) close to the middle plate (13) is a high-level end, and the end far from the middle plate (13) is a low-level end.
6. The immersed level detection electrode according to claim 4, characterized in that the side of said parallel plate (12) facing the inside of the housing (1) is provided with a support plate (14);
one side of the support plate (14) facing the inside of the shell (1) is provided with a right-angle groove, and the electrode plate (2) is embedded in the right-angle groove.
7. The immersed liquid level detection electrode according to claim 6, wherein a reinforcing plate (15) is arranged inside the shell (1), and the reinforcing plate (15) is parallel to the middle plate (13);
the reinforcing plate (15) is arranged close to the middle plate (13);
the plate body of the reinforcing plate (15) is provided with a jack corresponding to the junction pole of the wiring end (3).
8. The immersed liquid level detection electrode according to claim 7, wherein the side of the middle plate (13) facing the outside of the housing (1) is inserted with a cover cap (5);
the outside of medium plate (13) sets up the framework, and the jack is seted up at the framework middle part, shroud (5) correspond the jack towards one side of medium plate (13) and set up inserted block (51).
9. The immersion liquid level detection electrode according to claim 6, wherein a limit block (6) is provided at a side opposite to the upper edge of the parallel plate (12);
the limiting block (6) is arranged on one side of the parallel plate (12) far away from the middle plate (13);
the distance between the lower side surface of the limiting block (6) and the upper side surface of the groove of the support plate (14) corresponds to the thickness of the protective sleeve (4).
10. The immersion type liquid level detection electrode according to claim 9, wherein a positioning hole is formed at one end of the electrode plate (2) close to the middle plate (13), a positioning rod (7) is arranged on the mounting plate (11) corresponding to the positioning hole, and the axis of the positioning rod (7) is perpendicular to the plate surface of the mounting plate (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222699903.6U CN218238985U (en) | 2022-10-13 | 2022-10-13 | Soaking type liquid level detection electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222699903.6U CN218238985U (en) | 2022-10-13 | 2022-10-13 | Soaking type liquid level detection electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218238985U true CN218238985U (en) | 2023-01-06 |
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ID=84669865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222699903.6U Active CN218238985U (en) | 2022-10-13 | 2022-10-13 | Soaking type liquid level detection electrode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218238985U (en) |
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2022
- 2022-10-13 CN CN202222699903.6U patent/CN218238985U/en active Active
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