Detection circuit

By designing a detection circuit for a coffee machine, the problem of not being able to promptly know the cup inventory and cup drop motion control lag in the coffee machine storage space, and improving the efficiency of coffee making and use.

CN222514690UActive Publication Date: 2025-02-21LIAONING YANXUE INTELLIGENT EQUIP CO LTD
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Patent Information

Application Number
CN202421260715.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-04
Publication Date
2025-02-21
Estimated Expiration
2034-06-04

AI Technical Summary

Technical Problem

In a coffee machine with a large number of brewable cups, it is impossible to know whether there is a cup inventory in the storage space in time, and if there is a lag when the cup falls, it is also impossible to know in time, which affects the efficiency of coffee making and Efficiency of coffee maker.

Method used

A detection circuit is designed, including a main control circuit, a first driving circuit, a first detection circuit, a second driving circuit and a second detection circuit. The main control circuit outputs the driving signal, and the driving circuit and the detection circuit work in conjunction to realize the detection of inventory and the control of cup drop action.

Benefits of technology

It can promptly know whether there is a cup in the space, and if there is a stuttering when the cup falls, it can also be promptly known, improving the efficiency of coffee making and using.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The output end of the main control circuit is connected with the input ends of a first driving circuit and a second driving circuit; the output end of the first driving circuit is connected with the first motor; the input end of the first detection circuit is connected with the limit switch, and the output end is connected with the main control circuit; the output end of the second driving circuit is connected with the input end of the second detection circuit; and the output end of the second detection circuit is connected with the main control circuit. According to the coffee machine, whether cups are stored in the space or not can be known in time, when the cups are controlled to fall down, if the cups are stuck, the cups can be known in time, and the coffee making and using efficiency is improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of detection, in particular to a detection circuit. Background Art

[0002] For coffee machines that can brew a large number of cups, the maker only needs to pick up the cup once each time they make a cup of coffee. To solve this problem, a space for storing cups is often provided inside the coffee machine to facilitate the maker to pick up the cups nearby. However, even so, it is impossible to know in time whether there are cups in stock in the space, and if there is a jam when controlling the cup to fall, it is impossible to know in time, which affects the efficiency of coffee making and reduces the efficiency of using the coffee machine. Utility Model Content

[0003] Based on this, it is necessary to propose a detection circuit to address the above problems.

[0004] A detection circuit, comprising:

[0005] A main control circuit, whose output end is connected to the input end of the first drive circuit and the second drive circuit, and is used to output a first drive signal to the first drive circuit and output a second drive signal to the second drive circuit;

[0006] The first driving circuit, whose output end is connected to the first motor, is used to receive the first driving signal and drive the first motor to drive the cup dropper to move;

[0007] A first detection circuit, whose input end is connected to the limit switch and whose output end is connected to the main control circuit, is used to detect a first state signal of the limit switch and output the first state signal to the main control circuit;

[0008] The second driving circuit, whose output end is connected to the input end of the second detection circuit, is used to receive the second driving signal and output a third driving signal to the second detection circuit to drive the second detection circuit to perform inventory detection;

[0009] The output end of the second detection circuit is connected to the main control circuit, and is used to receive the third driving signal, obtain the inventory signal, and output the inventory signal to the main control circuit.

[0010] In one embodiment, the second detection circuit comprises:

[0011] an input circuit, the input end of which is connected to the output end of the second driving circuit, the output end of which is connected to the input end of the detection circuit, and is used to receive the third driving signal and output it to the detection circuit;

[0012] The detection circuit, the output end of which is connected to the input end of the output circuit, is used to receive the third driving signal, obtain the inventory signal, and output the inventory signal to the output circuit;

[0013] The output circuit has an output end connected to the input end of the main control circuit, and is used to receive the inventory signal, amplify the inventory signal and output it to the main control circuit.

[0014] In one embodiment, the main control circuit includes: a main control chip;

[0015] The first output terminal of the main control chip is connected to the input terminal of the first driving circuit;

[0016] The second output terminal of the main control chip is connected to the input terminal of the second driving circuit;

[0017] The first input terminal of the main control chip is connected to the output terminal of the first detection circuit;

[0018] The second input end of the main control chip is connected to the output end of the second detection circuit.

[0019] In one embodiment, the first driving circuit includes: a first diode, a MOS tube, a first resistor, a second resistor and a first capacitor;

[0020] The cathode of the first diode is connected to an external power supply, and the anode of the first diode is connected to the drain of the MOS tube;

[0021] The source of the MOS tube is grounded, the gate of the MOS tube is connected to one end of the first resistor, and the other end of the first resistor is connected to the first output end of the main control chip;

[0022] One end of the second resistor is connected to the gate of the MOS tube, and the other end of the second resistor is grounded;

[0023] One end of the first capacitor is connected to the cathode of the first diode, and the other end of the first capacitor is connected to the anode of the first diode.

[0024] In one embodiment, the first detection circuit includes: an optical coupler, a third resistor and a fourth resistor;

[0025] The collector of the optical coupler is connected to the first input terminal of the main control chip, the emitter of the optical coupler is grounded, the anode of the optical coupler is connected to one end of the third resistor, and the cathode of the optical coupler is connected to the limit switch;

[0026] The other end of the third resistor is connected to an external power supply;

[0027] One end of the fourth resistor is connected to the anode of the photocoupler, and the other end is connected to the cathode of the photocoupler.

[0028] In one embodiment, the second driving circuit includes: a second diode, a first transistor and a fifth resistor;

[0029] The cathode of the second diode is connected to an external power supply, and the anode of the second diode is connected to the collector of the first transistor;

[0030] The base of the first transistor is connected to the second output terminal of the main control chip, and the emitter of the first transistor is grounded;

[0031] A cathode and an anode of the second diode are both connected to the second detection circuit.

[0032] In one embodiment, the input circuit includes: a light emitting diode, a sixth resistor and a seventh resistor;

[0033] One end of the seventh resistor is connected to the cathode of the second diode, and the other end of the seventh resistor is connected to the anode of the light emitting diode;

[0034] The cathode of the light emitting diode is connected to the anode of the second diode and one end of the sixth resistor, and the other end of the sixth resistor is connected to the anode of the light emitting diode.

[0035] In one embodiment, the detection circuit includes: a second light emitting diode, a second triode, an eighth resistor, a ninth resistor and a second capacitor;

[0036] The cathode of the second light emitting diode is connected to an external power supply, the anode of the second light emitting diode is connected to one end of the eighth resistor, and the other end of the eighth resistor is grounded;

[0037] The collector of the second triode is connected to the cathode of the second light emitting diode, the base of the second triode is connected to the anode of the second light emitting diode, the emitter of the second triode is connected to one end of the ninth resistor and the input end of the output circuit, and the other end of the ninth resistor is grounded;

[0038] One end of the second capacitor is connected to the emitter of the second transistor, and the other end of the second capacitor is grounded.

[0039] In one embodiment, the output circuit includes: a tenth resistor, an eleventh resistor, a twelfth resistor, a thirteenth resistor and a third capacitor;

[0040] One end of the tenth resistor is connected to the emitter of the second triode, the other end of the tenth resistor is connected to one end of the twelfth resistor, the other end of the twelfth resistor is connected to the second input end of the main control chip and one end of the thirteenth resistor; the other end of the thirteenth resistor is grounded;

[0041] One end of the eleventh resistor is connected to an end of the tenth resistor away from the second transistor, and the other end of the eleventh resistor is grounded;

[0042] The third capacitor is connected in parallel with the eleventh resistor.

[0043] Implementing the embodiments of the present utility model will have the following beneficial effects:

[0044] This application outputs a first drive signal to the first drive circuit and a second drive signal to the second drive circuit through a main control circuit; the first drive circuit receives the first drive signal and drives the first motor to drive the cup dropper to move; the first detection circuit detects the first state signal of the limit switch and outputs the first state signal to the main control circuit; the second drive circuit receives the second drive signal and outputs a third drive signal to the second detection circuit to drive the second detection circuit to perform inventory detection; the second detection circuit receives the third drive signal and obtains an inventory signal and outputs the inventory signal to the main control circuit. This application realizes that it is possible to know in time whether there is an inventory of cups in the space, and if there is a jam when controlling the cup to fall, it can also be known in time, thereby improving the efficiency of coffee making and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0046] in:

[0047] Figure 1 is a structural block diagram of a detection circuit in one embodiment;

[0048] Figure 2 is a circuit diagram of a main control circuit in one embodiment;

[0049] Figure 3 is a circuit diagram of a first driving circuit in one embodiment;

[0050] Figure 4is a circuit diagram of a first detection circuit in one embodiment;

[0051] Figure 5 is a circuit diagram of a second driving circuit in one embodiment;

[0052] Figure 6 A circuit diagram of an input circuit in one embodiment;

[0053] Figure 7 is a circuit diagram of a detection circuit in one embodiment;

[0054] Figure 8 FIG. 4 is a circuit diagram of an output circuit in one embodiment. DETAILED DESCRIPTION

[0055] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0056] For a coffee machine that can brew a large number of cups, the coffee maker only needs to take the cup once for each cup of coffee. To solve this problem, a space for storing cups is often set inside the coffee machine to facilitate the coffee maker to take the cups nearby. However, even so, it is impossible to know in time whether there are cups in the space, and when controlling the cup to fall, if there is a jam, it is impossible to know in time, which affects the coffee making efficiency and reduces the use efficiency of the coffee machine. In order to solve the above technical problems, the present application provides a detection circuit, such as Figure 1As shown, it includes: a main control circuit 10, a first drive circuit 20, a first detection circuit 30, a second drive circuit 40 and a second detection circuit 50, wherein the output end of the main control circuit 10 is connected to the input end of the first drive circuit 20 and the second drive circuit 40, for outputting a first drive signal to the first drive circuit 20, and outputting a second drive signal to the second drive circuit 40; the output end of the first drive circuit 20 is connected to the first motor, for receiving the first drive signal, and driving the first motor to drive the cup dropper to move; the input end of the first detection circuit 30 is connected to the limit switch, and the output end is connected to the main control circuit 10, for detecting the first state signal of the limit switch, and outputting the first state signal to the main control circuit 10; the output end of the second drive circuit 40 is connected to the input end of the second detection circuit 50, for receiving the second drive signal, and outputting a third drive signal to the second detection circuit 50, so as to drive the second detection circuit 50 to perform inventory detection; the output end of the second detection circuit 50 is connected to the main control circuit 10, for receiving the third drive signal, and obtaining an inventory signal, and outputting the inventory signal to the main control circuit. This application outputs a first drive signal to the first drive circuit and a second drive signal to the second drive circuit through a main control circuit; the first drive circuit receives the first drive signal and drives the first motor to drive the cup dropper to move; the first detection circuit detects the first state signal of the limit switch and outputs the first state signal to the main control circuit; the second drive circuit receives the second drive signal and outputs a third drive signal to the second detection circuit to drive the second detection circuit to perform inventory detection; the second detection circuit receives the third drive signal and obtains an inventory signal and outputs the inventory signal to the main control circuit. This application realizes that it is possible to know in time whether there is an inventory of cups in the space, and if there is a jam when controlling the cup to fall, it can also be known in time, thereby improving the efficiency of coffee making and use.

[0057] In one embodiment, Figure 6-8 As shown, the second detection circuit 50 includes: an input circuit 501, a detection circuit 502 and an output circuit 503, wherein the input end of the input circuit 501 is connected to the output end of the second drive circuit 40, and the output end is connected to the input end of the detection circuit 502, for receiving the third drive signal and outputting it to the detection circuit 502; the output end of the detection circuit 502 is connected to the input end of the output circuit 503, for receiving the third drive signal, and obtaining the inventory signal, and outputting the inventory signal to the output circuit 503; the output end of the output circuit 503 is connected to the input end of the main control circuit 10, for receiving the inventory signal, and amplifying the inventory signal and outputting it to the main control circuit 10.

[0058] In one embodiment, Figure 2 As shown, the main control circuit 10 includes: a main control chip U1; wherein the first output terminal PA11 of the main control chip U1 is connected to the input terminal of the first drive circuit 20; the second output terminal PA12 of the main control chip U1 is connected to the input terminal of the second drive circuit 40; the first input terminal PA15 of the main control chip U1 is connected to the output terminal of the first detection circuit 30; the second input terminal PA6 of the main control chip U1 is connected to the output terminal of the second detection circuit 50.

[0059] In one embodiment, Figure 3 As shown, the first driving circuit 20 includes: a first diode D13, a MOS transistor Q10, a first resistor R24, a second resistor R22 and a first capacitor C6; wherein the cathode of the first diode D13 is connected to an external power supply, and the anode of the first diode D13 is connected to the drain of the MOS transistor Q10; the source of the MOS transistor Q10 is grounded, the gate of the MOS transistor Q10 is connected to one end of the first resistor R24, and the other end of the first resistor R24 ​​is connected to the first output end PA11 of the main control chip U1; one end of the second resistor R22 is connected to the gate of the MOS transistor Q10, and the other end of the second resistor R22 is grounded; one end of the first capacitor C6 is connected to the cathode of the first diode D13, and the other end is connected to the anode of the first diode D13.

[0060] In one embodiment, Figure 4 As shown, the first detection circuit 30 includes: an optocoupler IC3, a third resistor R23 and a fourth resistor R25; wherein, the collector of the optocoupler IC3 is connected to the first input terminal PA15 of the main control chip U1, the emitter of the optocoupler IC3 is grounded, the anode of the optocoupler IC3 is connected to one end of the third resistor R23, and the cathode of the optocoupler IC3 is connected to the limit switch; the other end of the third resistor R23 is connected to an external power supply; one end of the fourth resistor R25 is connected to the anode of the optocoupler IC3, and the other end is connected to the cathode of the optocoupler IC3.

[0061] In one embodiment, Figure 5As shown, the second driving circuit 40 includes: a second diode D15, a first transistor Q11 and a fifth resistor R29; wherein, the cathode of the second diode D15 is connected to the external power supply, and the anode of the second diode D15 is connected to the collector of the first transistor Q11; the base of the first transistor Q11 is connected to the second output terminal PA12 of the main control chip U1, and the emitter of the first transistor Q11 is grounded; the cathode and anode of the second diode D15 are both connected to the second detection circuit 50.

[0062] In one embodiment, Figure 6 As shown, the input circuit 501 includes: a light-emitting diode D18, a sixth resistor R33 and a seventh resistor R29; wherein, one end of the seventh resistor R29 is connected to the cathode of the second diode D15, and the other end of the seventh resistor R29 is connected to the anode of the light-emitting diode D18; the cathode of the light-emitting diode D18 is connected to the anode of the second diode D15 and one end of the sixth resistor R33, and the other end of the sixth resistor R33 is connected to the anode of the light-emitting diode D18.

[0063] In one embodiment, Figure 7 As shown, the detection circuit 502 includes: a second light-emitting diode D17, a second triode Q8, an eighth resistor R30, a ninth resistor R34 and a second capacitor C21; wherein, the cathode of the second light-emitting diode D17 is connected to an external power supply, the anode of the second light-emitting diode D17 is connected to one end of the eighth resistor R30, and the other end of the eighth resistor R30 is grounded; the collector of the second triode Q8 is connected to the cathode of the second light-emitting diode D17, the base of the second triode Q8 is connected to the anode of the second light-emitting diode D17, the emitter of the second triode Q8 is connected to one end of the ninth resistor R34 and the input end of the output circuit 503, and the other end of the ninth resistor R34 is grounded; one end of the second capacitor C21 is connected to the emitter of the second triode Q8, and the other end of the second capacitor C21 is grounded.

[0064] In one embodiment, Figure 8As shown, the output circuit 503 includes: a tenth resistor R28, an eleventh resistor R31, a twelfth resistor R34, a thirteenth resistor R32 and a third capacitor C8; wherein, one end of the tenth resistor R28 is connected to the emitter of the second transistor Q8, the other end of the tenth resistor R28 is connected to one end of the twelfth resistor R34, the other end of the twelfth resistor R34 is connected to the second input terminal PA6 of the main control chip U1 and one end of the thirteenth resistor R32; the other end of the thirteenth resistor R32 is grounded; one end of the eleventh resistor R31 is connected to one end of the tenth resistor R28 away from the second transistor Q8, and the other end of the eleventh resistor R31 is grounded; the third capacitor C8 is connected in parallel with the eleventh resistor R31.

[0065] This application outputs a first drive signal to the first drive circuit and a second drive signal to the second drive circuit through a main control circuit; the first drive circuit receives the first drive signal and drives the first motor to drive the cup dropper to move; the first detection circuit detects the first state signal of the limit switch and outputs the first state signal to the main control circuit; the second drive circuit receives the second drive signal and outputs a third drive signal to the second detection circuit to drive the second detection circuit to perform inventory detection; the second detection circuit receives the third drive signal and obtains an inventory signal and outputs the inventory signal to the main control circuit. This application realizes that it is possible to know in time whether there is an inventory of cups in the space, and if there is a jam when controlling the cup to fall, it can also be known in time, thereby improving the efficiency of coffee making and use.

[0066] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope covered by the present invention.

Claims

1. A detection circuit, characterized in that: include: A main control circuit, whose output end is connected to the input end of the first drive circuit and the second drive circuit, and is used to output a first drive signal to the first drive circuit and output a second drive signal to the second drive circuit; The first driving circuit, whose output end is connected to the first motor, is used to receive the first driving signal and drive the first motor to drive the cup dropper to move; A first detection circuit, whose input end is connected to the limit switch and whose output end is connected to the main control circuit, is used to detect a first state signal of the limit switch and output the first state signal to the main control circuit; The second driving circuit, whose output end is connected to the input end of the second detection circuit, is used to receive the second driving signal and output a third driving signal to the second detection circuit to drive the second detection circuit to perform inventory detection; The output end of the second detection circuit is connected to the main control circuit, and is used to receive the third driving signal, obtain the inventory signal, and output the inventory signal to the main control circuit.

2. The detection circuit according to claim 1, characterized in that: The second detection circuit comprises: an input circuit, the input end of which is connected to the output end of the second driving circuit, the output end of which is connected to the input end of the detection circuit, and is used to receive the third driving signal and output it to the detection circuit; The detection circuit, the output end of which is connected to the input end of the output circuit, is used to receive the third driving signal, obtain the inventory signal, and output the inventory signal to the output circuit; The output circuit has an output end connected to the input end of the main control circuit, and is used to receive the inventory signal, amplify the inventory signal and output it to the main control circuit.

3. The detection circuit according to claim 2, characterized in that: The main control circuit comprises: a main control chip; The first output terminal of the main control chip is connected to the input terminal of the first driving circuit; The second output terminal of the main control chip is connected to the input terminal of the second driving circuit; The first input terminal of the main control chip is connected to the output terminal of the first detection circuit; The second input end of the main control chip is connected to the output end of the second detection circuit.

4. The detection circuit according to claim 3, characterized in that: The first driving circuit includes: a first diode, a MOS tube, a first resistor, a second resistor and a first capacitor; The cathode of the first diode is connected to an external power supply, and the anode of the first diode is connected to the drain of the MOS tube; The source of the MOS tube is grounded, the gate of the MOS tube is connected to one end of the first resistor, and the other end of the first resistor is connected to the first output end of the main control chip; One end of the second resistor is connected to the gate of the MOS tube, and the other end of the second resistor is grounded; One end of the first capacitor is connected to the cathode of the first diode, and the other end of the first capacitor is connected to the anode of the first diode.

5. The detection circuit according to claim 3, characterized in that: The first detection circuit includes: an optical coupler, a third resistor and a fourth resistor; The collector of the optical coupler is connected to the first input terminal of the main control chip, the emitter of the optical coupler is grounded, the anode of the optical coupler is connected to one end of the third resistor, and the cathode of the optical coupler is connected to the limit switch; The other end of the third resistor is connected to an external power supply; One end of the fourth resistor is connected to the anode of the photocoupler, and the other end is connected to the cathode of the photocoupler.

6. The detection circuit according to claim 3, characterized in that: The second driving circuit comprises: a second diode, a first transistor and a fifth resistor; The cathode of the second diode is connected to an external power supply, and the anode of the second diode is connected to the collector of the first transistor; The base of the first transistor is connected to the second output terminal of the main control chip, and the emitter of the first transistor is grounded; A cathode and an anode of the second diode are both connected to the second detection circuit.

7. The detection circuit according to claim 6, characterized in that: The input circuit comprises: a light emitting diode, a sixth resistor and a seventh resistor; One end of the seventh resistor is connected to the cathode of the second diode, and the other end of the seventh resistor is connected to the anode of the light emitting diode; The cathode of the light emitting diode is connected to the anode of the second diode and one end of the sixth resistor, and the other end of the sixth resistor is connected to the anode of the light emitting diode.

8. The detection circuit according to claim 7, characterized in that: The detection circuit includes: a second light emitting diode, a second triode, an eighth resistor, a ninth resistor and a second capacitor; The cathode of the second light emitting diode is connected to an external power supply, the anode of the second light emitting diode is connected to one end of the eighth resistor, and the other end of the eighth resistor is grounded; The collector of the second triode is connected to the cathode of the second light emitting diode, the base of the second triode is connected to the anode of the second light emitting diode, the emitter of the second triode is connected to one end of the ninth resistor and the input end of the output circuit, and the other end of the ninth resistor is grounded; One end of the second capacitor is connected to the emitter of the second transistor, and the other end of the second capacitor is grounded.

9. The detection circuit according to claim 8, characterized in that: The output circuit comprises: a tenth resistor, an eleventh resistor, a twelfth resistor, a thirteenth resistor and a third capacitor; One end of the tenth resistor is connected to the emitter of the second triode, the other end of the tenth resistor is connected to one end of the twelfth resistor, the other end of the twelfth resistor is connected to the second input end of the main control chip and one end of the thirteenth resistor; the other end of the thirteenth resistor is grounded; One end of the eleventh resistor is connected to an end of the tenth resistor away from the second transistor, and the other end of the eleventh resistor is grounded; The third capacitor is connected in parallel with the eleventh resistor.