Engine low-temperature starting and battery low-temperature charging device applied to engine welding machine

Abstract

The invention discloses an engine low-temperature starting and battery low-temperature charging device applied to an engine welding machine, and relates to the technical field of engine welding machine auxiliary equipment.The engine is provided with an oil way heating device, a water way heating device, an air inlet heating device, a first temperature sensor, a second temperature sensor and a third temperature sensor; the power battery is provided with a battery heating device, a fourth temperature sensor is arranged in the power battery, the main control unit is electrically connected with the power battery, the charger, the first temperature sensor, the second temperature sensor, the third temperature sensor and the fourth temperature sensor, and the oil way heating device, the water way heating device and the air inlet heating device are electrically connected. The engine, the generator, the charger and the power battery are sequentially connected, and the charger is electrically connected with the battery heating device. According to the engine low-temperature starting and battery low-temperature charging device applied to the engine welding machine, the engine welding machine can stably operate under the severe cold working condition.

Description

Technical Field

[0001] The invention relates to the technical field of engine welding machine auxiliary equipment, and in particular to an engine low-temperature starting and battery low-temperature charging device applied to an engine welding machine. Background Art

[0002] The use of engine welders in cold regions or low-temperature environments faces many challenges. When the engine is at low temperatures, the viscosity of the lubricating oil increases and the fuel atomization is poor, resulting in difficulty in starting. At the same time, the performance of the power battery will also drop significantly due to low temperatures, and it cannot be charged safely and efficiently, affecting the normal operation of the engine welder. At present, there is a lack of an integrated device on the market that can effectively solve the problems of engine starting and battery charging for engine welders in low-temperature environments. Some existing heating or starting auxiliary equipment has a single function and cannot meet the needs of stable operation of engine welders in severe cold conditions. Summary of the invention

[0003] The purpose of the present invention is to provide an engine low-temperature starting and battery low-temperature charging device applied to an engine welding machine, so as to solve the problems that the engine welding machine is difficult to start in a low-temperature environment and the power battery cannot be charged safely and efficiently, thereby ensuring the stable operation of the engine welding machine under severe cold conditions.

[0004] To achieve the above object, the present invention provides the following solutions: The present invention provides an engine low-temperature starting and battery low-temperature charging device applied to an engine welding machine, comprising: a main control unit, an engine, a generator, a charger and a power battery, the engine is provided with an oil circuit heating device for heating the oil circuit of the engine, a water circuit heating device for heating the water circuit of the engine and an intake air heating device for heating the gas circuit of the engine, a first temperature sensor is provided in the oil circuit of the engine, a second temperature sensor is provided in the water circuit of the engine, a third temperature sensor is provided in the gas circuit of the engine, the power battery is provided with a battery heating device for heating the power battery, a fourth temperature sensor is provided inside the power battery, the main control unit is electrically connected to the power battery, the charger, the first temperature sensor, the second temperature sensor, the third temperature sensor, the fourth temperature sensor, the oil circuit heating device, the water circuit heating device and the intake air heating device, the engine, the generator, the charger and the power battery are connected in sequence, the charger is electrically connected to the battery heating device, and the power battery is used to supply power to the welding machine.

[0005] Preferably, when the ambient temperature is lower than a set value, the relay of the main control unit is energized, and the power battery supplies power to the oil circuit heating device, the water circuit heating device and the intake air heating device.

[0006] Preferably, when the temperatures monitored by the first temperature sensor and the second temperature sensor are both higher than the oil circuit and water circuit starting temperature Tq, the main control unit controls the oil circuit heating device and the water circuit heating device to stop working.

[0007] Preferably, when the temperature monitored by the third temperature sensor is higher than the gas circuit starting temperature Tw, the main control unit controls the intake air heating device to stop working and the engine starts.

[0008] Preferably, the gas circuit starting temperature Tw is greater than the oil circuit and water circuit starting temperature Tq.

[0009] Preferably, when the temperature monitored by the first temperature sensor is higher than the oil circuit starting temperature Ty, the main control unit controls the oil circuit heating device to stop working; when the temperature monitored by the second temperature sensor is higher than the water circuit starting temperature Ts, the main control unit controls the water circuit heating device to stop working.

[0010] Preferably, when the temperature monitored by the third temperature sensor is higher than the gas circuit starting temperature Tw, the main control unit controls the intake air heating device to stop working and the engine starts.

[0011] Preferably, the gas circuit starting temperature Tw is greater than the water circuit starting temperature Ts, and the water circuit starting temperature Ts is greater than the oil circuit starting temperature Ty.

[0012] Preferably, after the engine is started, it drives the generator to generate electricity, and the main control unit controls the charger to be in a heating mode. The charger is used to supply power to the battery heating device to achieve heating of the power battery.

[0013] Preferably, when the temperature monitored by the fourth temperature sensor is higher than the power battery charging temperature Tc, the main control unit controls the charger to be in a charging mode, and the charger charges the power battery.

[0014] Compared with the prior art, the present invention has achieved the following technical effects: The present invention realizes the smooth starting of the engine of the engine welding machine in a low-temperature environment and the safe low-temperature charging of the power battery, which greatly improves the applicability and stability of the engine welding machine in severe cold working conditions; through real-time monitoring by multiple temperature sensors (a first temperature sensor, a second temperature sensor, a third temperature sensor and a fourth temperature sensor) and precise control by the main control unit, precise regulation of the heating process of the engine and the power battery is achieved, energy utilization efficiency is improved, and unnecessary energy consumption is reduced; the present invention adopts an integrated design, and integrates the low-temperature starting of the engine and the low-temperature charging of the power battery in one device, which has a compact structure, is easy to install, and reduces costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 This is a schematic diagram of the engine low temperature starting and battery low temperature charging device applied to the engine welding machine of the present invention; In the figure: 1-main control unit, 2-engine, 3-generator, 4-charger, 5-power battery, 6-oil circuit heating device, 7-water circuit heating device, 8-intake air heating device, 9-first temperature sensor, 10-second temperature sensor, 11-third temperature sensor, 12-battery heating device, 13-fourth temperature sensor, 14-welding machine. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] The purpose of the present invention is to provide an engine low-temperature starting and battery low-temperature charging device applied to an engine welding machine, so as to solve the problems that the engine welding machine is difficult to start in a low-temperature environment and the power battery cannot be charged safely and efficiently, thereby ensuring the stable operation of the engine welding machine under severe cold conditions.

[0019] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] Embodiment 1 like Figure 1 As shown, this embodiment provides an engine low temperature starting and battery low temperature charging device for an engine welding machine, comprising: a main control unit 1, an engine 2, a generator 3, a charger 4 and a power battery 5, the engine 2 is provided with an oil circuit heating device 6 for heating the oil circuit of the engine 2, a water circuit heating device 7 for heating the water circuit of the engine 2 and an intake air heating device 8 for heating the gas circuit of the engine 2, a first temperature sensor 9 is provided in the oil circuit of the engine 2, a second temperature sensor 10 is provided in the water circuit of the engine 2, and a third temperature sensor is provided in the gas circuit of the engine 2. sensor 11, the power battery 5 is provided with a battery heating device 12 for heating the power battery 5, a fourth temperature sensor 13 is provided inside the power battery 5, the main control unit 1 is electrically connected to the power battery 5, the charger 4, the first temperature sensor 9, the second temperature sensor 10, the third temperature sensor 11, the fourth temperature sensor 13, the oil circuit heating device 6, the water circuit heating device 7 and the intake air heating device 8, the engine 2, the generator 3, the charger 4 and the power battery 5 are connected in sequence, the charger 4 and the battery heating device 12 are electrically connected, and the power battery 5 is used to supply power to the welding machine 14.

[0021] Specifically, in this embodiment, the power battery 5 is a power battery that can be discharged in a low temperature environment (less than -20°C).

[0022] In this embodiment, when the ambient temperature is lower than the set value (less than -20°C, for example, -40°C), the main control unit 1 controls the internal relay to be energized, so that the power battery 5 supplies power to the oil circuit heating device 6, the water circuit heating device 7 and the intake air heating device 8. As the oil circuit heating device 6, the water circuit heating device 7 and the intake air heating device 8 work, the temperature of the engine 2 gradually increases. The first temperature sensor 9 monitors the temperature of the oil circuit of the engine 2 in real time and transmits the temperature signal to the main control unit 1, the second temperature sensor 10 monitors the temperature of the water circuit of the engine 2 in real time and transmits the temperature signal to the main control unit 1, and the third temperature sensor 11 monitors the temperature of the gas circuit of the engine 2 in real time and transmits the temperature signal to the main control unit 1.

[0023] In this embodiment, when the temperatures monitored by the first temperature sensor 9 and the second temperature sensor 10 are both higher than the oil circuit and water circuit starting temperature Tq, the main control unit 1 disconnects the internal relay, controls the oil circuit heating device 6 and the water circuit heating device 7 to stop working, stops heating the oil circuit of the engine 2 and the water circuit of the engine 2, and instead concentrates on heating the air circuit of the engine 2 through the intake heating device 8.

[0024] In this embodiment, when the temperature monitored by the third temperature sensor 11 is higher than the gas circuit starting temperature Tw, the main control unit 1 controls the intake air heating device 8 to stop working and the engine 2 starts; the gas circuit starting temperature Tw is greater than the oil circuit and water circuit starting temperature Tq.

[0025] In this embodiment, after the engine 2 is started, it drives the generator 3 to generate electricity. The main control unit 1 controls the charger 4 to be in the heating mode through CAN communication. The charger 4 is used to supply power to the battery heating device 12 to heat the power battery 5.

[0026] In this embodiment, the fourth temperature sensor 13 monitors the temperature of the power battery 5 in real time. When the temperature monitored by the fourth temperature sensor 13 is higher than the charging temperature Tc of the power battery 5, the main control unit 1 controls the charger 4 to be in charging mode through CAN communication, and the charger 4 charges the power battery 5 safely and efficiently.

[0027] The installation of the low-temperature engine starting and low-temperature battery charging device for the engine welding machine of this embodiment: the engine 2 oil circuit heating device 6, the engine 2 water circuit heating device 7, and the engine 2 intake heating device 8 are respectively installed at the corresponding positions of the engine 2 to ensure uniform and effective heating; the first temperature sensor 9 is installed at a suitable position inside the oil circuit of the engine 2, the second temperature sensor 10 is installed at a suitable position inside the water circuit of the engine 2, and the third temperature sensor 11 is installed at a suitable position inside the gas circuit of the engine 2 to ensure accurate temperature measurement; the battery heating device 12 is installed near the power battery 5, and the fourth temperature sensor 13 is installed inside the power battery 5. The main control unit 1, relay, charger 4 and other components are installed in a suitable control box, and the circuits are connected according to the schematic diagram.

[0028] Maintenance and care of the engine low temperature starting and battery low temperature charging device for the engine welding machine of this embodiment: Regularly check whether each heating device (oil circuit heating device 6, water circuit heating device 7, intake air heating device 8 and battery heating device 12) is damaged, whether the temperature sensors (first temperature sensor 9, second temperature sensor 10, third temperature sensor 11 and fourth temperature sensor 13) are working properly, and whether the line connection is loose. Regularly maintain the power battery 5 to ensure its discharge performance in a low temperature environment. Regularly perform software upgrades and function monitoring on the main control unit 1 and the charger 4 to ensure the stable operation of the device.

[0029] This embodiment realizes the smooth starting of the engine 2 welding machine 14 in a low temperature environment and the low-temperature safe charging of the power battery 5, which greatly improves the applicability and stability of the engine 2 welding machine 14 in severe cold working conditions; through real-time monitoring by multiple temperature sensors (the first temperature sensor 9, the second temperature sensor 10, the third temperature sensor 11 and the fourth temperature sensor 13) and precise control of the main control unit 1, precise regulation of the heating process of the engine 2 and the power battery 5 is achieved, energy utilization efficiency is improved, and unnecessary energy consumption is reduced; this embodiment adopts an integrated design, integrating the low-temperature starting of the engine 2 and the low-temperature charging functions of the power battery 5 in one device, which has a compact structure, is easy to install, and reduces costs.

[0030] Embodiment 2 like Figure 1 As shown, the difference between this embodiment and embodiment 1 is that: in this embodiment, when the temperature monitored by the first temperature sensor 9 is higher than the oil circuit starting temperature Ty, the main control unit 1 controls the oil circuit heating device 6 to stop working; when the temperature monitored by the second temperature sensor 10 is higher than the water circuit starting temperature Ts, the main control unit 1 controls the water circuit heating device 7 to stop working.

[0031] In this embodiment, the gas circuit starting temperature Tw is greater than the water circuit starting temperature Ts, and the water circuit starting temperature Ts is greater than the oil circuit starting temperature Ty.

[0032] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. The low temperature engine starting and low temperature battery charging device used in engine welding machines is characterized by: include: A main control unit, an engine, a generator, a charger and a power battery, wherein the engine is provided with an oil circuit heating device for heating the oil circuit of the engine, a water circuit heating device for heating the water circuit of the engine and an intake air heating device for heating the gas circuit of the engine, a first temperature sensor is provided in the oil circuit of the engine, a second temperature sensor is provided in the water circuit of the engine, a third temperature sensor is provided in the gas circuit of the engine, the power battery is provided with a battery heating device for heating the power battery, and a fourth temperature sensor is provided inside the power battery, the main control unit is electrically connected to the power battery, the charger, the first temperature sensor, the second temperature sensor, the third temperature sensor, the fourth temperature sensor, the oil circuit heating device, the water circuit heating device and the intake air heating device respectively, the engine, the generator, the charger and the power battery are connected in sequence, the charger is electrically connected to the battery heating device, and the power battery is used to supply power to the welding machine.

2. The low temperature engine starting and low temperature battery charging device for an engine welding machine according to claim 1, characterized in that: When the ambient temperature is lower than a set value, the relay of the main control unit is energized, and the power battery supplies power to the oil circuit heating device, the water circuit heating device and the intake air heating device.

3. The low temperature engine starting and low temperature battery charging device for an engine welding machine according to claim 2, characterized in that: When the temperatures monitored by the first temperature sensor and the second temperature sensor are both higher than the oil circuit and water circuit starting temperature Tq, the main control unit controls the oil circuit heating device and the water circuit heating device to stop working.

4. The low temperature engine starting and low temperature battery charging device for an engine welding machine according to claim 3, characterized in that: When the temperature monitored by the third temperature sensor is higher than the gas circuit starting temperature Tw, the main control unit controls the intake air heating device to stop working and the engine starts.

5. The low temperature engine starting and low temperature battery charging device for an engine welding machine according to claim 4, characterized in that: The gas circuit starting temperature Tw is greater than the oil circuit and water circuit starting temperature Tq.

6. The low temperature engine starting and low temperature battery charging device for an engine welding machine according to claim 2, characterized in that: When the temperature monitored by the first temperature sensor is higher than the oil circuit starting temperature Ty, the main control unit controls the oil circuit heating device to stop working; when the temperature monitored by the second temperature sensor is higher than the water circuit starting temperature Ts, the main control unit controls the water circuit heating device to stop working.

7. The low temperature engine starting and low temperature battery charging device for an engine welding machine according to claim 6, characterized in that: When the temperature monitored by the third temperature sensor is higher than the gas circuit starting temperature Tw, the main control unit controls the intake air heating device to stop working and the engine starts.

8. The low temperature engine starting and low temperature battery charging device for an engine welding machine according to claim 7, characterized in that: The gas circuit starting temperature Tw is greater than the water circuit starting temperature Ts, and the water circuit starting temperature Ts is greater than the oil circuit starting temperature Ty.

9. The low temperature engine starting and low temperature battery charging device for engine welding machine according to claim 4 or 7, characterized in that: After the engine is started, it drives the generator to generate electricity. The main control unit controls the charger to be in a heating mode. The charger is used to supply power to the battery heating device to achieve heating of the power battery.

10. The low temperature engine starting and low temperature battery charging device for engine welding machine according to claim 9, characterized in that: When the temperature monitored by the fourth temperature sensor is higher than the power battery charging temperature Tc, the main control unit controls the charger to be in a charging mode, and the charger charges the power battery.

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