Lithium electric welding machine circuit with automobile forced starting function

Abstract

The utility model discloses a lithium electric welding machine circuit with an automobile forced start function, which belongs to the technical field of lithium electric welding machine circuits and comprises a lithium electric welding machine, the lithium electric welding machine is coupled with 12V constant voltage control and 24V constant voltage control, a 12V battery identification module and a 24V battery identification module are coupled with the 12V constant voltage control and the 24V constant voltage control and are coupled with the lithium electric welding machine, and the lithium electric welding machine is further connected with a battery through a JD1 and a JD2.

Description

TECHNICAL FIELD

[0001] The utility model relates to a lithium electric welding machine circuit, in particular to a lithium electric welding machine circuit with automobile forced starting belongs to lithium electric welding machine circuit technical field. BACKGROUND

[0002] The lithium electric welding machine on the market is a special lithium electric welding machine, and the lithium electric automobile forced starting is a special forced starter, and the lithium electric welding machine and the automobile forced starting are combined together, which does not exist on the market.

[0003] The lithium electric welding machine on the market is a special lithium electric welding machine, and the lithium electric automobile forced starting is a special forced starter, and the lithium electric welding machine and the automobile forced starting are combined together, which does not exist on the market.

[0004] The automobile forced starting on the market is a special forced starter, and the lithium electric welding machine function does not exist, and the forced starter is special for 12V battery and 24V battery, and there is no 12V battery and 24V battery compatible forced starter.

[0005] Therefore, the lithium electric welding machine circuit with automobile forced starting is designed to solve the above problems. UTILITY MODEL CONTENTS

[0006] The main purpose of the utility model is to provide a lithium electric welding machine circuit with automobile forced starting.

[0007] The purpose of the utility model can be achieved by adopting the following technical scheme:

[0008] A lithium electric welding machine circuit with automobile forced starting, comprising a lithium electric welding machine, the lithium electric welding machine is coupled with 12V constant voltage control and 24V constant voltage control;

[0009] The 12V and 24V battery identification module is coupled with 12V constant voltage control and 24V constant voltage control and coupled with the lithium electric welding machine.

[0010] The lithium electric welding machine is further connected with the battery through JD1 and JD2.

[0011] Preferably, the lithium electric welding machine is built-in with an output sampling circuit, the output sampling circuit comprises an anode capacitor C1, one end of the anode capacitor C1 is electrically connected with one end of a resistor R1, the other end of the resistor R1 is electrically connected with one end of a resistor R2 and one end of a resistor R3, the other end of the resistor R2 and the other end of the resistor R3 are grounded and connected with the welding machine output, and the other end of the anode capacitor C1 is electrically connected with the other end of the resistor R2.

[0012] Preferably, the 12V and 24V battery identification module is coupled with the output sampling circuit.

[0013] Preferably, the 24V constant voltage control includes Z1, the cathode of which is electrically connected to the output sampling circuit, the anode of which is electrically connected to one end of resistor R5, the other end of the resistor R5 is electrically connected to the input end 1 pin of U1, the input end 2 pin of U1 is connected to the 1 pin of Q1, the 2 pin of Q1 is connected to one end of R7, and the other end of R7 is connected to the 24V constant voltage control.

[0014] Preferably, the 2 pin of Q1 is connected to one end of resistor R8, the other end of R8 is connected to the 3 pin of Q1 and grounded, one end of R6 is connected to the 3 pin of U1, the 4 pin of U1 is grounded, and the other end of R6 is output.

[0015] Preferably, the 12V constant voltage control includes Z2, the cathode of which is connected to the output sampling circuit, the anode of which is connected to one end of R9, the other end of R9 is connected to the input end 1 pin of U2, and the input end 2 pin of U2 is connected to the 1 pin of Q2.

[0016] Preferably, the 2 pin of Q2 is connected to one end of R11 and one end of R12, the other end of R12 is connected to the 3 pin of Q2 and grounded, one end of R10 is connected to the 3 pin of U2, and the 4 pin of U2 is grounded.

[0017] The beneficial technical effects of the utility model are as follows:

[0018] The lithium electric welding machine circuit with automobile forced starting provided by the utility model, in terms of increasing automobile forced starting for the lithium electric welding machine, has not existed in the domestic and foreign markets before the present application, and is a completely new product of another category.

[0019] In terms of the plug-in power supply argon arc welding machine, the greatest advantage of the present application is that it can be used for automobile forced starting in addition to welding operation. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The system diagram according to the preferred embodiment of the lithium electric welding machine circuit with automobile forced starting of the utility model;

[0021] Figure 2 The output sampling module circuit according to the preferred embodiment of the lithium electric welding machine circuit with automobile forced starting of the utility model;

[0022] Figure 3 The control circuit module according to the preferred embodiment of the lithium electric welding machine circuit with automobile forced starting of the utility model. DETAILED DESCRIPTION

[0023] In order to make the skilled person in the art more clear and explicit about the technical scheme of the utility model, the utility model will be further described in detail below in combination with the embodiments and the drawings, but the implementation manner of the utility model is not limited thereto.

[0024] AsFigures 1-3 As shown, the lithium battery welding machine circuit with car forced start provided by the embodiment comprises a lithium battery welding machine coupled with 12V constant voltage control and 24V constant voltage control;

[0025] The 12V and 24V battery identification module is coupled with the 12V constant voltage control and the 24V constant voltage control and coupled with the lithium battery welding machine;

[0026] The lithium battery welding machine is further connected with the battery through JD1 and JD2, and the lithium battery welding machine is internally provided with an output sampling circuit, which comprises an anode capacitor C1, one end of the anode capacitor C1 is electrically connected with one end of a resistor R1, the other end of the resistor R1 is electrically connected with one end of a resistor R2 and one end of a resistor R3, the other end of the resistor R2 and the other end of the resistor R3 are grounded and connected with the welding machine output, the cathode of the anode capacitor C1 is electrically connected with the other end of the resistor R2, the 12V and 24V battery identification module is coupled with the output sampling circuit, the 24V constant voltage control comprises Z1, the cathode of Z1 is electrically connected with the output sampling circuit, one end of the anode of Z1 is electrically connected with one end of a resistor R5, the other end of the resistor R5 is electrically connected with an input end 1 pin of U1, an input end 2 pin of U1 is connected with a 1 pin of Q1, a 2 pin of Q1 is connected with one end of a resistor R7, the other end of the resistor R7 is connected with the 24V constant voltage control, the 2 pin of Q1 is connected with one end of a resistor R8, the other end of the resistor R8 is connected with a 3 pin of Q1 and grounded, a 3 pin of U1 is connected with one end of a resistor R6, a 4 pin of U1 is grounded, and the other end of the resistor R6 is outputted, the 12V constant voltage control comprises Z2, the cathode of Z2 is connected with the output sampling circuit, the anode of Z2 is connected with one end of a resistor R9, the other end of the resistor R9 is connected with an input end 1 pin of U2, an input end 2 pin of U2 is connected with a 1 pin of Q2, a 2 pin of Q2 is connected with one end of a resistor R11 and one end of a resistor R12, the other end of the resistor R12 is connected with a 3 pin of Q2 and grounded, a 3 pin of U2 is connected with one end of a resistor R10, and a 4 pin of U2 is grounded.

[0027] As shown, the lithium battery welding machine is in the original state, and relates to a battery, a main circuit, constant current arc characteristic control, a PWM circuit, power device driving and the like; Figure 1

[0028] JD1 and JD2 are positive and negative outputs of the welding machine, and are directly connected to the battery when the car forced start is used;

[0029] The 12V and 24V battery identification circuit is used for identifying the type of the battery, and when a 12V battery is identified, 12V constant voltage control is performed; when a 24V battery is identified, 24V constant voltage control is performed;

[0030] The 12V constant current and constant voltage control is used for two types of control, one is output current given, which requires to reach 400A, and the other is 12V constant voltage control, which is used to ensure that the output voltage cannot exceed the highest voltage of the 12V battery;

[0031] ​24V constant current constant voltage control is to do two kinds of control, one is the output current given, requires to reach 400A, two is 24V constant voltage control, to ensure that the output voltage can not exceed 24V battery maximum voltage.

[0032] As shown in Figure 2 Lithium battery welding machine as a car strong when, not output, waiting for the battery access, when the battery access, through R1, C1 filter, get the access of the battery voltage, here called "battery voltage sampling" signal. R2, R3 for output absorption resistance, avoid not access the battery, virtual voltage is sampled;

[0033] As shown in Figure 3 2V and 24V battery identification circuit: battery voltage sampling through processing, send to the single chip microcomputer identification, when the identification to 3V to 14.4V, as access to 12V battery, through R4 strong current given, again through 12V constant voltage control circuit executes 12V battery required constant voltage control; when the identification to 15V to 28.8V, as access to 24V battery, through R4 strong current given, again through 24V constant voltage control circuit executes 24V battery required constant voltage control;

[0034] 12V constant voltage control circuit: by Z2, R9, U2, R10, R11, R12, Q2 and other elements of the circuit. When the identification to the battery access is 12V battery, the single chip microcomputer 12V constant voltage control output high level, at this time, the 24V constant voltage control output low level, Q2 is turned on, by Z2, U2, R10 constitutes 12V battery voltage sampling and feedback, for constant voltage control, that is, when the output voltage is less than the upper limit voltage 14.4V of 12V battery, strong start constant current control, when the output voltage is equal to or greater than the upper limit voltage 14.4V of 12V battery, strong start constant voltage control.

[0035] 24V constant voltage control circuit: by Z1, R5, U1, R6, R7, R8, Q1 and other elements of the circuit. When the identification to the battery access is 24V battery, the single chip microcomputer 24V constant voltage control output high level, at this time, the 12V constant voltage control output low level, Q1 is turned on, by Z1, U1, R6 constitutes 24V battery voltage sampling and feedback, for constant voltage control, that is, when the output voltage is greater than 15V and less than the upper limit voltage 28.8V, strong start constant current control, when the output voltage is equal to or greater than the upper limit voltage 28.8V of 24V battery, strong start constant voltage control.

[0036] The above is only for further embodiments of the present application, but the protection scope of the present application is not limited to this, any skilled in the art of the technical personnel in the range disclosed by the present application, according to the technical scheme and the conception of the present application to make equivalent replacement or change, all belong to the protection scope of the present application.

Claims

1. A circuit for a lithium battery welder with car override, characterized by: The lithium electric welding machine is coupled with 12V constant voltage control and 24V constant voltage control; The 12V and 24V battery identification module is coupled with 12V constant voltage control and 24V constant voltage control and coupled with the lithium electric welding machine; The lithium electric welding machine is further connected with the battery through JD1 and JD2.

2. The circuit of claim 1, wherein: The lithium electric welding machine is built-in with an output sampling circuit, which comprises an anode capacitor C1, one end of the anode capacitor C1 is electrically connected with one end of resistor R1, the other end of the resistor R1 is electrically connected with one end of resistor R2 and one end of resistor R3, the other end of the resistor R2 and the other end of the resistor R3 are grounded and connected with the welding machine output, and the cathode of the anode capacitor C1 is electrically connected with the other end of the resistor R2.

3. The circuit of claim 2, wherein: The 12V and 24V battery identification module is coupled with the output sampling circuit.

4. The circuit of claim 3, wherein: The 24V constant voltage control comprises Z1, the cathode of the Z1 is electrically connected with the output sampling circuit, one end of the anode of the Z1 is electrically connected with one end of resistor R5, the other end of the resistor R5 is electrically connected with input end 1 of U1, input end 2 of U1 is connected with 1 pin of Q1, 2 pin of Q1 is connected with one end of R7, the other end of R7 is connected with the 24V constant voltage control.

5. The circuit of claim 4, wherein: 2 pin of Q1 is connected with one end of resistor R8, the other end of R8 is connected with 3 pin of Q1 and grounded, 3 pin of U1 is connected with one end of R6, 4 pin of U1 is grounded, and the other end of R6 is output.

6. The circuit of claim 5, wherein: The 12V constant voltage control comprises Z2, the cathode of the Z2 is connected with the output sampling circuit, and the anode of the Z2 is connected with one end of R9, the other end of R9 is connected with input end 1 of U2, and input end 2 of U2 is connected with 1 pin of Q2.

7. The circuit of claim 6, wherein: 2 pin of Q2 is connected with one end of R11 and one end of R12, the other end of R12 is connected with 3 pin of Q2 and grounded, 3 pin of U2 is connected with one end of R10, and 4 pin of U2 is grounded.

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