CN219267812U

CN219267812U - Battery protection device for portable electric fusion welding machine

Info

Publication number: CN219267812U
Application number: CN202320104775.8U
Authority: CN
Inventors: 叶罗城; 胡贤奇; 杜荣; 胡爽; 王光文; 熊建周; 赵萌; 罗彬�; 叶强
Original assignee: Chongqing Shengya Pipeline Co ltd
Current assignee: Chongqing Shengya Pipeline Co ltd
Priority date: 2023-02-02
Filing date: 2023-02-02
Publication date: 2023-06-27
Anticipated expiration: 2033-02-02

Abstract

The scheme belongs to the technical field of welding equipment application, and particularly relates to a battery protection device for a portable electric fusion welding machine. Including box and power module, be equipped with operating panel, anodal interface and negative pole interface on the surface of box left side wall, anodal interface and negative pole interface are located same horizontal line, operating panel is located anodal interface and negative pole interface below, be equipped with fan mouth and interface that charges on the box right side wall, the inside fan that is equipped with of box, the air-out face of fan corresponds with the fan mouth, be equipped with the filter screen on the fan mouth, the interface that charges is located fan mouth right side, and this scheme is through setting up fan and air intake for the lithium cell cooling is faster, and then makes the even charge and discharge of battery, controls the calorific capacity of lithium cell itself, lets its battery output voltage more stable, extension battery life.

Description

Battery protection device for portable electric fusion welding machine

Technical Field

The scheme belongs to the technical field of welding equipment application, and particularly relates to a battery protection device for a portable electric fusion welding machine.

Background

The electric fusion welding machine is also called as an electric fusion welding machine, and is a machine which is used for welding plastic pipes together after the electric fusion belt is electrified to enable the electric heating wires embedded in the electric fusion belt to generate heat, the surfaces of the pipes and the pipe fittings are melted by heat energy, and the plastic pipes are cooled and solidified. In the PE pipeline construction and installation process, the connection of the pipes is mainly hot melting connection and electric melting connection, which is one of the main connection methods in the PE pipeline construction, and the equipment used by the PE pipeline construction and installation method is an electric melting welder which can control parameters such as output voltage, current, time, heat and the like to finish the welding process of the pipe fittings, and the PE pipeline construction and installation method is applicable to connection of all pipe diameters.

The main current electric fusion welding machine in the market is mainly connected with a civil 220V electric fusion welding machine or a generator to generate electricity and then connected with the electric fusion welding machine, because the polyethylene pipeline is often installed by adopting outdoor buried ground, the urban area is often kept away from the construction environment, and the electric fusion welding machine is positioned in a mountain area, at the moment, the traffic and the electricity are inconvenient, and if the civil 220V electric fusion welding machine is connected, the problems of overlong wiring wires, unstable voltage and the like are caused, so that the welding quality of the electric fusion welding machine is affected. However, if the generator is used for electric fusion welding, the main stream generator in the market is heavy in size and inconvenient to transport and transfer, and manpower and material resources are additionally increased; therefore, the polyethylene pipeline is installed or the quality accident of the installed polyethylene pipeline is first-aid repaired, basically, electric melting connection is adopted, and the requirement on the timeliness of welding can be met. However, the existing capacitor welding machine has the defects of poor heat dissipation performance and low service life.

The patent of application number CN202021369004.4 discloses a production PE is with preventing spilling over formula electric smelting welding machine, including the equipment box, the equipment box is rectangular box form, and the inside of equipment box is hollow form, and the top of equipment box is provided with the hot melt connector, and the bottom of hot melt connector runs through the top wall of equipment box and extends to the inside of equipment box, and ventilation heating panel has all been inlayed at both ends about the left side wall top of equipment box.

The ventilation cooling plate in this scheme is bar groove structure, has set up the heating panel on the same horizontal plane of one side of equipment box moreover only, is difficult to form the air convection, volatilizees the effect to the heat in the equipment box not good, and the radiating effect is poor, is not enough to satisfy the heat dissipation demand of welding machine, if the welding machine is in the high temperature state for a long time, still has the potential safety hazard of starting to fire.

Disclosure of Invention

The battery protection device for the portable electric fusion welding machine can be used for extracting hot air in the box body of the equipment box and improving the heat dissipation efficiency of the electric fusion welding machine.

In order to achieve the above purpose, the proposal provides a battery protection device for a portable electric fusion welding machine, which comprises a box body and a power supply module,

the external surface of the left side wall of the box body is provided with an operation panel, an anode interface and a cathode interface, the anode interface and the cathode interface are positioned on the same horizontal line, the operation panel is positioned below the anode interface and the cathode interface, the right side wall of the box body is provided with a fan port, a power switch and a charging interface, the inside of the box body is provided with a fan, the air outlet surface of the fan corresponds to the fan port, the fan port is provided with a filter screen, the charging interface is positioned on the right side of the fan port, the power switch is positioned on the left side of the fan port, and the power switch is used for controlling the power on and off of a power module;

the lithium battery is fixed at the bottom of the box body, the upper end of the side face of the lithium battery, which is close to the fan end, protrudes, the lower end of the side face of the lithium battery, which is close to the fan end, is arranged in a trapezoid, the charging interface is connected with the charging rectifying module circuit, the charging rectifying module, the control circuit and the voltage regulating circuit are respectively connected with the main board circuit, the lithium battery is connected with the control circuit in a power supply manner, the control circuit is connected with the voltage regulating circuit, and the voltage regulating circuit is respectively connected with the positive electrode interface and the negative electrode interface circuit; the control circuit is used for controlling the output battery voltage,

the set battery protection voltage of the lithium battery is 3.7V-4.2V.

The principle of the scheme is as follows: when the lithium battery is required to be charged, the input current is rectified through the charging rectification module, then the storage battery is connected to charge, when the lithium battery is used, the output voltage is set through the operation panel, the input circuit is connected to the power supply of the lithium battery, the control circuit converts the input voltage into a required voltage value, then the voltage is regulated through the voltage regulating circuit, and then the stable and controllable output voltage is obtained, finally the positive electrode and the negative electrode of the welding output end are connected, and fusion welding of the polyethylene pipeline is rapidly completed through the operation of the welding tool. When the lithium battery discharges, the fan is turned on, so that the fan drives air in the box body to circulate, then external air enters from the air inlet to radiate the inside of the box body, and then radiate the lithium battery, so that the lithium battery discharges more fully and more stably, the upper end of the side surface of the lithium battery, which is close to the fan end, protrudes, the lower end of the lithium battery is arranged in a trapezoid manner, the radiating area of the lithium battery is increased, the lithium battery radiates more quickly, and the baffle plate is in an inverted U shape and is used for shielding dust; preventing dust from entering the box.

The beneficial effect of this scheme: this scheme is through setting up fan and air intake for lithium cell cooling is faster, and then makes the even charge and discharge of battery, and the calorific capacity of control lithium cell itself lets its battery output voltage more stable, extension battery life. The battery protection voltage is set to be 3.7V-4.2V to control the charge and discharge voltage of the single battery, so that the battery voltage can still meet the last working requirement even in the lowest voltage state, and the battery cannot be damaged because the battery energy consumption is reduced to the lowest. The charger is automatically powered off to be not charged after the highest charging voltage is reached during charging, the multiple protection modes can enable the safety performance of the equipment to be higher, and the output of the lithium battery is that the direct current voltage is less harmful to human bodies relative to the alternating current voltage. When the PE pipe is connected through electric melting, the lithium battery output circuit in the device is adopted to help reduce the heat dissipation capacity of the circuit, reduce the circuit loss, help ensure the stable operation of the circuit and improve the quality of the PE pipe through electric melting welding.

Further, the main board is a DC-DC power management chip, and is designed to output 39.5V and rated to output 50A. The highest efficiency energy conversion is 97%, so that the welding device is very suitable for low-voltage high-current occasions, and the welding requirement of PE electric melting pipe fittings is satisfied.

Further, the lithium battery adopts a plurality of 3.7V batteries to output 48V-64V voltage in series.

Further, gaps are formed between the front end and the rear end of the lithium battery and the box body, and between the lithium battery and the top plate. And the heat dissipation of the lithium battery is facilitated.

Further, still include the fixed plate of L shape, fixed plate base and bottom half are equipped with the same screw hole, the fixed plate is equipped with a plurality of, all be fixed in the box through fixed plate and bolt around the lithium cell. In the working process, the fixing plate prevents the lithium battery from shaking, so that the power supply is unstable.

Further, the bottom of the box body is provided with a bracket, the air inlets on the left side and the right side of the box body are provided with a plurality of air inlets, the plurality of air inlets are sequentially arranged from top to bottom, and the distance between the lowest end ventilation opening and the bottom of the box body is 10cm. When the fan starts, air in the box is pumped out by the fan, so that negative pressure is formed in the box, then outside air enters the box from the air inlet, and then outside air circulation of the box is driven through the air vent, and because the baffle is in an inverted U shape, air at the bottom of the box is sucked into the box, and then air circulation at the bottom of the box is driven, and the bottom of the lithium battery is contacted with the bottom of the box, so that heat dissipation of the bottom of the lithium battery is facilitated, and the heat dissipation effect is better.

Further, the front side wall and the rear side wall of the box body are detachably connected to the box body. The lithium battery is convenient for an operator to overhaul.

Drawings

Fig. 1 is a right side structural isometric view of an embodiment of the utility model.

Fig. 2 is a right side structural isometric view of an embodiment of the utility model.

Fig. 3 is a front view in cross section of an embodiment of the present utility model.

Fig. 4 is a right side view of the case according to the embodiment of the present utility model.

Fig. 5 is a left side view of the case according to the embodiment of the present utility model.

Fig. 6 is a sectional view of a left-hand structure of a case according to an embodiment of the present utility model.

Detailed Description

The following is a further detailed description of the embodiments:

the labels in the drawings of this specification include: 1. a case; 2. an operation panel; 3. an anode interface; 4. a negative electrode interface; 5. a fan port; 6. a charging interface; 7. a fan; 8. an air inlet; 9. a baffle; 10. a lithium battery; 11. a fixing plate; 12. a bracket; 13. a main board; 14. and a power switch.

The embodiment is basically as shown in figures 1-2 and 4-5:

the utility model provides a battery protection device for portable electric smelting welding machine, including box 1 and power module, be equipped with operating panel 2 on the surface of box 1 left side wall, anodal interface 3 and negative pole interface 4 are located same horizontal line, operating panel 2 is located anodal interface 3 and negative pole interface 4 below, be equipped with fan mouth 5 on the box 1 right side wall, switch 14 and interface 6 that charges, the inside fan 7 that is equipped with of box 1, the air-out face of fan 7 corresponds with fan mouth 5, be equipped with the filter screen on the fan mouth 5, interface 6 that charges is located fan mouth 5 right side, switch 14 is located fan mouth left side, switch 14 is used for controlling power of power module to open and close.

As shown in fig. 3:

both sides wall all is equipped with bar air intake 8 around box 1, be equipped with baffle 9 on the box 1, baffle 9 is the style of calligraphy of falling U, power module includes lithium cell 10, mainboard 13, rectifier module charges, control circuit and voltage regulation circuit, lithium cell 10 is close to the side upper end protrusion setting of fan 7 end, lithium cell 10 is close to the trapezoidal setting of side lower extreme of fan 7 end, box 1 bottom is equipped with support 12, air intake 8 on the left and right sides of box 1 are equipped with many, many air intakes are arranged in proper order from the top down, the distance of the lower extreme vent distance bottom box 1 is 10cm. When the fan 7 starts, air in the box 1 is pumped out by the fan 7, so that negative pressure is formed in the box 1, then outside air enters the box 1 from the air inlet 8, and then air outside the box 1 is driven to circulate through the ventilation opening, and because the baffle 9 is of an inverted U shape, air at the bottom of the box 1 is sucked into the box 1, and then the bottom of the box 1 is driven to circulate, and the bottom of the lithium battery 10 is contacted with the bottom of the box, so that heat dissipation of the bottom of the lithium battery 10 is facilitated, and the heat dissipation effect is better. The front and rear side walls of the case 1 are detachably connected to the case 1. The operator is facilitated to service the lithium battery 10.

As shown in fig. 6:

the lithium battery 10 is fixed at the bottom of the box body 1, and gaps are formed between the lithium battery 10 and the front end, the rear end and the top plate of the box body 1, so that the heat dissipation of the lithium battery 10 is facilitated. The lithium battery box further comprises an L-shaped fixing plate 11, the bottom edge of the fixing plate 11 and the bottom of the box body 1 are provided with the same threaded holes, the fixing plate 11 is provided with a plurality of fixing plates, and the periphery of the lithium battery 10 is fixed in the box body 1 through the fixing plate 11 and bolts. During operation, the fixing plate 11 prevents the lithium battery 10 from shaking, resulting in unstable power supply. The control circuit is used for controlling the output battery voltage, adopts a high-performance series MCU, and integrates the functions of a reference power supply, an oscillator, an error amplifier, current limiting protection, short-circuit protection, half-bridge driving and the like based on a high-voltage and high-current buck DC-DC power supply management chip of the high-power micro-electronics.

The set battery protection voltage of the lithium battery 10 is 3.7V-4.2V. The battery protection voltage is set to be 3.7V-4.2V to control the charge and discharge voltage of the single battery, so that the battery voltage can still meet the last working requirement even in the lowest voltage state, and the battery cannot be damaged because the battery energy consumption is reduced to the lowest. The charger is automatically powered off to be not charged after the highest charging voltage is reached during charging, the multiple protection modes can enable the safety performance of equipment to be higher, and the output of the lithium battery 10 is that the direct current voltage is less harmful to human bodies relative to the alternating current voltage. The lithium battery 10 outputs 48V-64V voltage using a plurality of 3.7V batteries in series. The welding requirement of PE electric melting pipe fittings is met.

The charging interface 6 is in circuit connection with the charging rectifying module, the charging rectifying module is in circuit connection with the lithium battery 10, the charging rectifying module, the control circuit and the voltage regulating line are respectively in circuit connection with the main board 13, the lithium battery 10 is in power supply connection with the control circuit, the control circuit is in circuit connection with the voltage regulating line, and the voltage regulating line is respectively in circuit connection with the positive electrode interface 3 and the negative electrode interface 4; the motherboard 13 is a DC-DC power management chip, and is designed to output 39.5V voltage, 50A rated output current and 97% maximum efficiency energy conversion. Is very suitable for application in low-voltage high-current occasions, and is enough to meet the welding requirement of PE electric melting pipe fittings.

The foregoing is merely exemplary embodiments of the present utility model, and specific structures and features that are well known in the art are not described in detail herein. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present utility model, and these should also be considered as the scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the utility of the patent. The protection scope of the present application shall be subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.

Claims

1. A battery protection device for a portable electric fusion welding machine comprises a box body (1) and a power supply module,

the method is characterized in that: the intelligent charging box comprises a box body (1), and is characterized in that an operation panel (2), an anode interface (3) and a cathode interface (4) are arranged on the outer surface of the left side wall of the box body (1), the anode interface (3) and the cathode interface (4) are located on the same horizontal line, the operation panel (2) is located below the anode interface (3) and the cathode interface (4), a fan port (5), a power switch (14) and a charging interface (6) are arranged on the right side wall of the box body (1), a fan (7) is arranged in the box body (1), an air outlet surface of the fan (7) corresponds to the fan port (5), a filter screen is arranged on the fan port (5), the charging interface (6) is located on the right side of the fan port (5), the power switch (14) is located on the left side of the fan port, and the power switch (14) is used for controlling the power supply of a power module to be turned on and off; the lithium battery (10) is fixed at the bottom of the box body (1), the lithium battery (10) is arranged in a protruding mode at the upper end of the side face close to the end of the fan (7), the lithium battery (10) is arranged in a trapezoid mode at the lower end of the side face close to the end of the fan (7), the charging interface (6) is connected with the charging rectifying module, the charging rectifying module is connected with the lithium battery (10) through a circuit, the charging rectifying module, the control circuit and the voltage regulating circuit are respectively connected with the main board (13) through a circuit, the lithium battery (10) is connected with the control circuit through a power supply, the control circuit is connected with the voltage regulating circuit through a circuit, and the voltage regulating circuit is respectively connected with the positive electrode interface (3) and the negative electrode interface (4); the control circuit is used for controlling the output battery voltage, and the set battery protection voltage of the lithium battery (10) is 3.7V-4.2V.

2. A battery protection device for a portable electric fusion welding machine according to claim 1, wherein: the main board (13) is a DC-DC power management chip, and is designed to output 39.5V and rated output current 50A.

3. A battery protection device for a portable electric fusion welding machine according to claim 1, wherein: the lithium battery (10) adopts a plurality of 3.7V batteries to output 48V-64V voltage in series.

4. A battery protection device for a portable electric fusion welding machine according to claim 1, wherein: gaps are formed between the front end, the rear end and the top plate of the lithium battery (10) and the box body (1).

5. A battery protection device for a portable electric fusion welding machine according to claim 1, wherein: still include fixed plate (11) of L shape, fixed plate (11) base and box (1) bottom are equipped with the same screw hole, fixed plate (11) are equipped with a plurality of, all be fixed in box (1) through fixed plate (11) and bolt around lithium cell (10).

6. A battery protection device for a portable electric fusion welding machine according to claim 1, wherein: the bottom of the box body (1) is provided with a bracket (12), the air inlets (8) on the left side and the right side of the box body (1) are provided with a plurality of air inlets, the plurality of air inlets are sequentially arranged from top to bottom, and the distance between the lowest end ventilation opening and the bottom of the box body (1) is 10cm.

7. The battery protection device for a portable electric fusion welding machine of claim 6, wherein: the front side wall and the rear side wall of the box body (1) are detachably connected to the box body (1).