CN216206812U - Probe type liquid level meter for battery slurry - Google Patents

Abstract

The utility model discloses a probe type liquid level meter for battery slurry, which comprises: a fixed seat; the probes are arranged on the fixed seat at intervals, and the distance between every two adjacent probes is 30-60 mm; and the control unit is electrically connected with the probes respectively. According to the embodiment of the utility model, the distance between the probes is increased to 30-60 mm, so that the adhesion phenomenon cannot occur when the probes are separated from the liquid level of the battery slurry, the occurrence of error signals can be effectively avoided, and the detection precision is improved. The detection requirement of the battery slurry liquid level is met, and the cost can be reduced.

Description

Probe type liquid level meter for battery slurry

Technical Field

The utility model relates to the field of battery slurry detection equipment, in particular to a probe type liquid level meter for battery slurry.

Background

Adopt ultrasonic wave formula level gauge to carry out level detection usually in present battery thick liquids jar, ultrasonic wave formula level gauge's shortcoming lies in with high costs, and probe-type's level gauge is with low costs, but it has the defect when using in battery thick liquids jar, because interval is less between a plurality of probes on probe-type's the level gauge, and battery thick liquids viscosity is great, and easy because the thick liquids adhesion leads to the error signal to appear when the probe breaks away from the liquid level, influences the detection precision.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides a probe type liquid level meter for battery slurry, which can avoid the phenomenon of slurry adhesion when a probe is separated from the liquid level.

A probe-type level gauge for battery paste according to an embodiment of the present invention includes: a fixed seat; the probes are arranged on the fixed seat at intervals, and the distance between every two adjacent probes is 30-60 mm; and the control unit is electrically connected with the probes respectively.

The probe type liquid level meter for battery slurry according to the embodiment of the utility model has the following technical effects: according to the embodiment of the utility model, the distance between the probes is increased to 30-60 mm, so that the adhesion phenomenon cannot occur when the probes are separated from the liquid level of the battery slurry, the occurrence of error signals can be effectively avoided, and the detection precision is improved. The detection requirement of the battery slurry liquid level is met, and the cost can be reduced.

According to some embodiments of the utility model, a plurality of the probes are uniformly distributed on the fixing base, and the distance between the probes is 43 mm.

According to some embodiments of the utility model, the probe has a diameter of 3-4 mm.

According to some embodiments of the utility model, the probe is a 3.2 mm diameter probe.

According to some embodiments of the utility model, the length of a plurality of said probes increases sequentially.

According to some embodiments of the utility model, the control unit comprises a power module, a DC-DC module and a trigger, wherein an input end of the power module is used for connecting an external power supply, an output end of the power module is connected with the DC-DC module, an output end of the DC-DC module is connected with a power supply end of the trigger, and the trigger is connected with the probe.

According to some embodiments of the present invention, the DC-DC module includes a first DC-DC chip and a second DC-DC chip, an input terminal of the first DC-DC chip is connected to an output terminal of the power supply module for converting an output voltage of the power supply module into a direct current voltage of 12V, an output terminal of the first DC-DC chip is connected to an input terminal of the second DC-DC chip for converting the direct current voltage of 12V into a direct current voltage of 5V, and an output terminal of the second DC-DC chip is connected to a power supply terminal of the flip-flop.

According to some embodiments of the present invention, the control unit further includes an alarm output module, the alarm output module includes a transistor, a relay and an alarm output terminal, the output terminal of the trigger is connected to the base of the transistor, the emitter of the transistor is grounded, the collector of the transistor is connected to one end of the coil of the relay, the other end of the coil of the relay is connected to the output terminal of the power supply module, and the normally open/normally closed contact of the relay is connected to the alarm output terminal.

According to some embodiments of the utility model, the control unit is electrically connected to the probe by a plug.

According to some embodiments of the utility model, the number of probes is five.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural diagram of a probe-type level gauge in an embodiment of the present invention;

FIG. 2 is a schematic circuit diagram of a probe, trigger and alarm output module in an embodiment of the utility model;

FIG. 3 is a schematic circuit diagram of the probe, power module and DC-DC module in an embodiment of the utility model.

Reference numerals

The fixing base 100, the probe 200, the control unit 300 and the plug 400.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1, a probe-type level gauge for battery paste includes: the fixing base 100, a plurality of probes 200 and the control unit 300, the quantity of probe 200 can be set up according to actual demand, adopt five probes in this embodiment, including low level alert probe, high level alert probe, feeding position probe, stop position probe etc, five probes 200 are a row interval and install on fixing base 100 and length increases 10 millimeters in proper order, the interval of adjacent probe 200 is 30-60 millimeters, through the experiment, the probe interval is if be less than 30 millimeters and easily takes place thick liquid adhesion phenomenon, be greater than 60 millimeters then can lead to the signal insensitive because the cable or the circuit distance of probe and the fixing base back is too big, and the mountable quantity of probe also can be influenced to the interval is too big.

The probes in the conventional probe type liquid level meter all adopt stainless steel bars with the diameter of 6mm, the probability of slurry adhesion can be further reduced by selecting probes with the diameter of 3-4 mm, preferably, the distance between the probes 200 in the embodiment is 43 mm, the probes 200 adopt stainless steel bars with the diameter of 3.2 mm, and the optimal balance of signal sensitivity, adhesion avoidance, cost and stable structure can be achieved by testing the arrangement of the probes with the diameter and the distance.

The control units 300 are electrically connected to the probes 200, respectively. Control unit 300 all installs the back at fixing base 100 in conventional probe-type level gauge, wash the level timing and sputter easily and cause the internal circuit trouble on control unit 300, influence life and maintenance inconvenience, control unit 300 sets up alone in this embodiment, it links to each other with probe 200 through pulling out plug 400, probe part breaks away from with the circuit part when conveniently wasing, and service life is improved, and convenient maintenance, pull out plug 400 and adopt conventional serial ports plug and socket.

Referring to fig. 2 and 3, the control unit 300 includes a power module, a DC-DC module, a trigger and an alarm output module, wherein an input terminal of the power module is connected to a commercial power or other external power source and is used for converting the external input power source into a 24V DC voltage, an output terminal of the power module is respectively connected to the DC-DC module and a power supply terminal of the probe 200, an output terminal of the DC-DC module is connected to a power supply terminal of the trigger, and a signal terminal of the trigger is connected to a feedback terminal of the probe 200. The DC-DC module comprises a first DC-DC chip and a second DC-DC chip which are sequentially connected, wherein the input end of the first DC-DC chip is connected with the output end of the power module, the first DC-DC chip adopts a 12V power supply conversion chip to convert 24V direct current voltage into 12V direct current voltage, the second DC-DC chip adopts a 5V power supply chip to convert the 12V direct current voltage into 5V direct current voltage to supply power for the trigger, and the trigger in the embodiment adopts a 555 trigger.

In the conventional probe type liquid level meter, in order to save cost, a probe and a trigger are uniformly powered by a 12V power supply, and for the trigger, the defect is that the 12V working voltage is too high for the trigger, and once short circuit occurs between the probes, a chip is easily burnt; for the probe, the detection sensitivity of the probe at the working voltage of 12V in the battery paste is poor due to the low conductivity of the battery paste. Therefore, in the embodiment, the power supply module directly provides 24V voltage for the probe 200, and the power supply voltage of the probe 200 is increased to 24V, so that the detection sensitivity is improved, the liquid level meter is suitable for low-conductivity battery slurry, the working voltage of the trigger is reduced to the lowest working voltage of 5V, a chip is not easily burnt even if short circuit occurs between the probes, and the service life of the liquid level meter is ensured.

Each probe corresponds to an alarm output module, a low-level alarm probe is taken as an example, each alarm output module comprises a triode Q1, a relay K1 and a low-level alarm output terminal, an OUT pin of a trigger U1 is connected with a base electrode of the triode Q1, an emitting electrode of the triode Q1 is grounded, a collector electrode of a triode Q1 is connected with one end of a coil of the relay, the other end of the coil of the relay K1 is connected with a 24V power supply, the low-level alarm output terminal is connected with a normally open or normally closed end of the relay K1 according to a connected alarm equipment port, the collector electrode of the triode Q1 is also connected with the 24V power supply through a light emitting diode LED1, and the LED1 is lighted up when low liquid level overrun occurs, so that field workers can visually obtain alarm information.

In summary, in the embodiment of the present invention, the distance between the probes 200 is increased to 30-60 mm, so that the adhesion phenomenon is not generated when the probes 200 are separated from the liquid level of the battery slurry, thereby effectively avoiding the occurrence of false signals and improving the detection precision. Satisfy the detection demand of battery thick liquids liquid level and compare ultrasonic wave level gauge can very big reduce cost. Further, the life span can be increased by reducing the voltage of the trigger to 5V, and the sensitivity of detection can be increased by increasing the power supply voltage of the probe 200 to 24V.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims (10)

1. A probe-type level gauge for battery paste, comprising:

a fixed seat (100);

the probes (200) are arranged on the fixed seat (100) at intervals, and the distance between every two adjacent probes (200) is 30-60 mm;

the control unit (300), the control unit (300) respectively with probe (200) electric connection.

2. The probe-type level gauge for battery paste according to claim 1, wherein: the probes (200) are uniformly distributed on the fixed seat, and the distance between the probes (200) is 43 mm.

3. The probe-type level gauge for battery paste according to claim 1, wherein: the diameter of the probe (200) is 3-4 mm.

4. The probe-type level gauge for battery paste according to claim 3, wherein: the diameter of the probe (200) is 3.2 mm.

5. The probe-type level gauge for battery paste according to claim 1, wherein: the length of a plurality of the probes (200) increases in sequence.

6. The probe-type level gauge for battery paste according to claim 1, wherein: the control unit (300) comprises a power supply module, a DC-DC module and a trigger, wherein the input end of the power supply module is used for being connected with an external power supply, the output end of the power supply module is used for outputting 24V direct-current voltage, the output end of the power supply module is respectively connected with the DC-DC module and the power supply end of the probe (200), the output end of the DC-DC module is connected with the power supply end of the trigger, and the signal end of the trigger is connected with the feedback end of the probe (200).

7. The probe-type level gauge for battery paste according to claim 6, wherein: the DC-DC module comprises a first DC-DC chip and a second DC-DC chip, wherein the input end of the first DC-DC chip is connected with the output end of the power supply module so as to convert the output voltage of the power supply module into 12V direct current voltage, the output end of the first DC-DC chip is connected with the input end of the second DC-DC chip so as to convert the 12V direct current voltage into 5V direct current voltage, and the output end of the second DC-DC chip is connected with the power supply end of the trigger.

8. The probe-type level gauge for battery paste according to claim 6, wherein: the control unit (300) still includes alarm output module, alarm output module includes triode, relay and alarm output terminal, the output of trigger is connected the base of triode, the projecting pole ground connection of triode, the collecting electrode of triode is connected the coil one end of relay, the coil other end of relay is connected power module's output, the normally open/normally closed contact of relay is connected alarm output terminal.

9. The probe-type level gauge for battery paste according to claim 1, wherein: the control unit (300) is electrically connected with the probe (200) through a plug (400).

10. The probe-type level gauge for battery paste according to claim 1, wherein: the number of the probes (200) is five.

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