CN105600148A

CN105600148A - Humidity-sensing candy box

Info

Publication number: CN105600148A
Application number: CN201610119764.1A
Authority: CN
Inventors: 翁文彬
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-03-02
Filing date: 2016-03-02
Publication date: 2016-05-25

Abstract

The invention discloses a humidity-sensing candy box which comprises a box body and a box cover. A module integrated with a bridge circuit, an amplifier, a comparator, a reference unit and an alarm circuit is arranged on the lateral wall of the box body. The humidity-sensing candy box can give out an alarm when the humidity in the box body is excessive.

Description

A kind of wet induction bonbon box

Technical field

The present invention relates to bonbon box, particularly a kind of bonbon box with prompt facility.

Background technology

Packing box is article of modern goods indispensability, and particularly for food, packing box can not only ensure that food is not damaged, and can ensure the safety of the food in box, ensures the health of food. Packing box also has the effect of publicity. For the granular pot foods such as chewing gum, chocolate, after making moist, directly can have influence on mouthfeel, therefore, the air-tightness of bonbon box is also particularly important, still, and for the problem of difficulty of processing, bonbon box generally cannot reach good air-tightness, and long-time not edible food, moisture-sensitive, this process also only just can be realized during at edible food eater.

Summary of the invention

The object of the present invention is to provide a kind of wet induction bonbon box, sounding alarm in the time that box body interior humidity is excessive.

For realizing technique scheme, the invention provides following technical scheme:

A kind of wet induction bonbon box, comprise box body and lid, described box body one side opening, described lid is connected in opening part rotationally, described box side wall is provided with the bridge circuit of a brachium pontis band humistor, the output of a brachium pontis with humistor in described bridge circuit and the output of another brachium pontis are respectively coupled to two inputs of amplifier, the output of described amplifier is connected to the in-phase end of comparison, the backward end of described comparator provides reference voltage by reference cell, and the output of described comparator is connected with warning circuit;

Described brachium pontis is in series by humistor and the first resistance;

Described reference cell comprises the second resistance and the 3rd resistance of series connection, and the other end of described the second resistance is coupled to VCC voltage, other end ground connection;

Described warning circuit comprises triode and buzzer, and the base stage of described triode is coupled to the output of comparator, and colelctor electrode is in series with the wherein buzzer of a termination VCC voltage, grounded emitter;

Described bridge circuit is integrated in a module, this module is located at inboard wall of cartridge, amplifier, comparator, reference cell and warning circuit are all integrated in another module, and this module is located at box body outer wall, be also included as above element the button cell of VCC voltage is provided in this module.

By taking technique scheme, in the time that the humidity of bonbon box inside increases, can cause output voltage and another brachium pontis of a brachium pontis with humistor in bridge circuit to produce voltage difference, this voltage difference amplifies by amplifier, and compare by comparator and reference voltage, when voltage difference after amplifying is greater than reference voltage, illustrate that box body interior humidity is larger, reach the standard that in box, food makes moist that makes, the conducting of now comparator output high level signal control triode, thereby control buzzer sounding, like this, in box body, humidity is larger, when in box body, food has the trend of making moist, just can point out user by buzzer, prevent that eater is edible after food makes moist, because buzzer is located at box body outer wall, therefore, more easily point out user, in addition, because each element is all integrated in in module, convenient batch production and installation.

Brief description of the drawings

Fig. 1 is the structural representation of bonbon box

Fig. 2 is the circuit theory diagrams that are applied in bonbon box.

In figure, 1, box body; 2, lid; 3, module; 4, module; R2, humistor; 100, bridge circuit; 200, reference cell; 300, warning circuit.

Detailed description of the invention

Below in conjunction with accompanying drawing, the present invention is described in further detail.

A kind of wet induction bonbon box, as shown in Figure 1, comprise box body 1 and lid 2, box body 1 one side openings, lid 2 is connected in opening part rotationally, and box body 1 inwall is provided with module 3, and box body 1 outer wall is provided with module 4, wherein module 3 is integrated bridge circuit 100, module 4 is integrated amplifier OA1, comparator U1, reference cell 200, warning circuit 300 and button cell (not shown).

As shown in Figure 2, module comprises bridge circuit 100, this bridge circuit 100 has two brachium pontis, one of them brachium pontis is resistance R 1 and the resistance R 2 of series connection mutually, wherein resistance R 1 is the first resistance described in claims, resistance R 2 is the humistor described in claims, the other end of resistance R 2 is coupled to VCC voltage, the other end ground connection of resistance R 1, wherein another brachium pontis is resistance R 3 and the resistance R 4 of series connection mutually, the other end of resistance R 3 is coupled to VCC voltage, the other end ground connection of resistance R 4, two inputs of amplifier OA1 are connected to the common junction of resistance R 1 and resistance R 2 and the common junction of resistance R 3 and resistance R 4 by resistance R 6 and resistance R 7 respectively, amplifier OA1 connects output and end of oppisite phase by resistance R 9, amplifier OA1 also passes through resistance R 8 by in-phase end ground connection, the output of amplifier OA1 is connected to the in-phase end of comparator U1, the end of oppisite phase of comparator U1 is by providing reference voltage by reference cell 200, wherein reference cell 200 comprises resistance R 10 and the resistance R 11 of mutual series connection, resistance R 10 and resistance R 11 are respectively the second resistance described in claims and the 3rd resistance, another termination VCC voltage of resistance R 10, the other end ground connection of resistance R 11, the output of comparator U1 connects warning circuit 300 by resistance R 12, warning circuit 300 comprises triode Q and buzzer B, wherein the base stage of triode Q is coupled to resistance R 12, emitter stage is by resistance R 13 ground connection, colelctor electrode is connected to VCC voltage by buzzer B. in module, being also included as above element provides the button cell (not shown) of VCC voltage.

By taking technique scheme, in the time that the humidity of bonbon box inside increases, can cause output voltage and another brachium pontis of a brachium pontis with humistor (being resistance R 2) in bridge circuit 100 to produce voltage difference, this voltage difference amplifies by amplifier OA1, and compare by comparator U1 and reference voltage, when voltage difference after amplifying is greater than reference voltage, illustrate that box body 1 interior humidity is larger, reach the standard that in box, food makes moist that makes, now comparator U1 output high level signal control triode Q conducting, thereby control buzzer B sounding, like this, whenever the interior humidity of box body 1 is larger, when the interior food of box body 1 has the trend of making moist, just can be by buzzer B prompting user, prevent that eater is edible after food makes moist, because buzzer is located at box body 1 outer wall, therefore, more easily point out user, in addition, because each element is all integrated in in module 3 and module 4, convenient batch production and installation.

This specific embodiment is only explanation of the invention; it is not limitation of the present invention; those skilled in the art are reading after this description and can make to the present embodiment the amendment that there is no creative contribution as required, but as long as within the scope of claim of the present invention, are all subject to the protection of Patent Law.

Claims

1. a wet induction bonbon box, comprise box body (1) and lid (2), described box body (1) one side opening, described lid (2) is connected in opening part rotationally, it is characterized in that, described box body (1) sidewall is provided with the bridge circuit (100) of a brachium pontis band humistor, the output of a brachium pontis with humistor in described bridge circuit (100) and the output of another brachium pontis are respectively coupled to two inputs of amplifier (OA1), the output of described amplifier (OA1) is connected to the in-phase end of comparator (U1), the backward end of described comparator (U1) provides reference voltage by reference cell (200), the output of described comparator (U1) is connected with warning circuit (300),

Described brachium pontis is in series by humistor and the first resistance;

Described reference cell (200) comprises the second resistance and the 3rd resistance of series connection, and the other end of described the second resistance is coupled to VCC voltage, other end ground connection;

Described warning circuit (300) comprises triode (Q) and buzzer (B), and the base stage of described triode (Q) is coupled to the output of comparator (U1), and colelctor electrode is in series with the wherein buzzer (B) of a termination VCC voltage, grounded emitter;

Described bridge circuit (100) is integrated in a module (3), this module (3) is located at inboard wall of cartridge, amplifier (OA1), comparator (U1), reference cell (200) and warning circuit (300) are all integrated in another module (4), this module (4) is located at box body (1) outer wall, is also included as above element the button cell of VCC voltage is provided in this module (4).