AGV (Automatic Guided Vehicle) on-off circuit

Abstract

The utility model discloses an AGV on-off circuit comprising a battery module used for providing electric energy of a first voltage; the voltage reduction module is used for reducing the electric energy provided by the battery module from a first voltage to a second voltage; the MCU module works under the second voltage, the MCU module is connected with peripheral electronic equipment, and the MCU module is used for controlling the peripheral electronic equipment; a double-pole double-throw touch switch, one path of the double-pole double-throw touch switch is connected to a first power-on line of the battery module, and the other path of the double-pole double-throw touch switch is connected to the MCU module; and the electronic switch is arranged on the second starting-up circuit of the battery module, and the relay is further connected to the MCU module. According to the AGV on-off circuit provided by the utility model, an original mechanical switch self-locking mode is replaced by the electronic switch, so that the battery can output continuously, and the electronic self-locking switch can be released once the power is insufficient, so that the battery can be thoroughly powered off.

Description

Technical Field

[0001] The utility model relates to an AGV on / off circuit. Background Art

[0002] Existing AGVs use a mechanical self-locking switch to turn the machine on and off. If you forget to turn the machine off, the power cord will be short-circuited, causing a small current to continue flowing through the battery. Over time, this can lead to over-discharge of the battery. In severe cases, the battery may starve and become useless. Utility Model Content

[0003] The utility model provides an AGV power on / off circuit to solve the above-mentioned technical problems, specifically adopting the following technical solutions:

[0004] An AGV power on / off circuit, comprising:

[0005] a battery module for providing electrical energy of a first voltage;

[0006] a step-down module, connected to the battery module, for reducing the electric energy provided by the battery module from the first voltage to a second voltage;

[0007] an MCU module connected to the step-down module, the MCU module operating at the second voltage, the MCU module being connected to an external electronic device, and the MCU module being used to control the external electronic device;

[0008] A double-pole double-throw tact switch, wherein one switch of the double-pole double-throw tact switch is connected to the first power-on circuit of the battery module, and the other switch of the double-pole double-throw tact switch is connected to the MCU module;

[0009] An electronic switch is provided on the second power-on circuit of the battery module, and the electronic switch is also connected to the MCU module.

[0010] Furthermore, the electronic switch is a relay.

[0011] Furthermore, the electronic switch is a photorelay.

[0012] Furthermore, one side of the other switch of the double-pole double-throw tact switch is grounded and the other side is connected to the MCU module.

[0013] Furthermore, when the double-pole double-throw tact switch is pressed and closed, one switch of the double-pole double-throw tact switch is closed, the first power-on circuit is short-circuited, the battery module outputs voltage, the other switch of the double-pole double-throw tact switch is closed, and a power-on signal is sent to the MCU module. After the MCU module receives the power-on signal, the MCU module sends a control signal to the electronic switch, the electronic switch is closed, and the second power-on circuit is short-circuited.

[0014] Furthermore, the MCU module sends a disconnect signal to the electronic switch, the electronic switch is turned on, and the second power-on circuit is disconnected.

[0015] Furthermore, the first voltage is 48V.

[0016] Furthermore, the second voltage is 3.3V.

[0017] Furthermore, the touch time of the double-pole double-throw touch switch is greater than or equal to 0.5s.

[0018] Furthermore, the touch time of the double-pole double-throw touch switch is greater than or equal to 1s.

[0019] The benefit of the present invention lies in the AGV power on / off circuit provided, which uses an electronic switch to replace the original mechanical switch self-locking method, allowing the battery to continue outputting. Once the power is exhausted, the electronic self-locking switch will be released, and the battery can be completely powered off. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0021] Figure 1 This is a schematic diagram of an AGV power on / off circuit of the present utility model. DETAILED DESCRIPTION

[0022] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0023] like Figure 1The AGV power on / off circuit of the present application is shown, which is used to control the power on / off of the AGV equipment. The AGV power on / off circuit includes: a battery module, a step-down module, an MCU module, a double-pole double-throw tact switch and an electronic switch.

[0024] Specifically, the battery module is used to provide electrical energy at a first voltage. In the present application, the first voltage is 48V. The step-down module is connected to the battery module to reduce the electrical energy provided by the battery module from the first voltage to a second voltage. Specifically, the step-down module converts the 48V voltage provided by the battery module to 3.3V. The MCU module is connected to the step-down module. The MCU module operates at the second voltage. The MCU module is connected to various peripheral electronic devices, and the MCU module is used to control these peripheral electronic devices.

[0025] One of the double-pole double-throw tact switch switches is connected to the first power-on line of the battery module, and the other of the double-pole double-throw tact switch switches is connected to the MCU module. Specifically, one side of the other of the double-pole double-throw tact switch switches is grounded and the other side is connected to the MCU module.

[0026] The electronic switch is provided on the second power-on circuit of the battery module and is also connected to the MCU module. Preferably, the electronic switch is a relay. In an embodiment of the present application, the electronic switch is a photorelay. The first power-on circuit and the second power-on circuit are connected in parallel.

[0027] Specifically, in the initial state, the double-pole double-throw (DPDT) tact switch is open. When the DPDT tact switch is pressed, one of the switches closes, short-circuiting the first power-on circuit. At this point, the battery module outputs 48V, the step-down module operates, and the MCU module receives power and starts up.

[0028] The other switch of the double-pole double-throw tact switch is closed, and a power-on signal is sent to the MCU module. The touch time of the double-pole double-throw tact switch is preferably greater than or equal to 0.5s. In an embodiment of the present application, the touch time of the double-pole double-throw tact switch is greater than or equal to 1s. As long as the double-pole double-throw switch is touched for 1 second, the MCU module considers it a normal power-on signal. After the MCU module receives the power-on signal, the MCU module sends a self-locking control signal to the electronic switch, the electronic switch is closed, the second power-on circuit is short-circuited, and the short-circuited power transmission state of the battery module is locked. At this time, even if the double-pole double-throw tact switch is released, the battery module can still continue to output. When the battery power consumption is lower than the threshold or a shutdown command is received, releasing this self-locking switch can achieve a complete shutdown. At this time, the MCU module sends a disconnect signal to the electronic switch, the electronic switch is opened, and the second power-on circuit is disconnected.

[0029] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the above embodiments do not limit the present invention in any form, and any technical solution obtained by equivalent replacement or equivalent transformation falls within the scope of protection of the present invention.

Claims

1. An AGV power on / off circuit, characterized in that: Include: a battery module for providing electrical energy of a first voltage; a step-down module, connected to the battery module, for reducing the electric energy provided by the battery module from the first voltage to a second voltage; an MCU module connected to the step-down module, the MCU module operating at the second voltage, the MCU module being connected to an external electronic device, and the MCU module being used to control the external electronic device; A double-pole double-throw tact switch, wherein one switch of the double-pole double-throw tact switch is connected to the first power-on circuit of the battery module, and the other switch of the double-pole double-throw tact switch is connected to the MCU module; An electronic switch is provided on the second power-on circuit of the battery module, and the electronic switch is also connected to the MCU module.

2. The AGV power on / off circuit according to claim 1, characterized in that: The electronic switch is a relay.

3. The AGV power on / off circuit according to claim 2, characterized in that: The electronic switch is a photorelay.

4. The AGV power on / off circuit according to claim 1, characterized in that: One side of the other switch of the double-pole double-throw tact switch is grounded and the other side is connected to the MCU module.

5. The AGV power on / off circuit according to claim 1, characterized in that: When the double-pole double-throw tact switch is pressed and closed, one switch of the double-pole double-throw tact switch is closed, the first power-on circuit is short-circuited, the battery module outputs voltage, the other switch of the double-pole double-throw tact switch is closed, and a power-on signal is sent to the MCU module. After the MCU module receives the power-on signal, the MCU module sends a control signal to the electronic switch, the electronic switch is closed, and the second power-on circuit is short-circuited.

6. The AGV power on / off circuit according to claim 5, characterized in that: The MCU module sends a disconnect signal to the electronic switch, the electronic switch is turned on, and the second power-on circuit is disconnected.

7. The AGV power on / off circuit according to claim 1, characterized in that: The first voltage is 48V.

8. The AGV power on / off circuit according to claim 7, characterized in that: The second voltage is 3.3V.

9. The AGV power on / off circuit according to claim 1, characterized in that: The double-pole double-throw touch switch has a touch time greater than or equal to 0.5s.

10. The AGV power on / off circuit according to claim 9, characterized in that: The touch time of the double-pole double-throw touch switch is greater than or equal to 1s.

Images