CN2369809Y - Super low safety voltage low power consumption high efficiency electric iron - Google Patents

Abstract

The utility model is an ultra-low safe voltage, low power consumption and high-efficiency electric soldering iron, which is composed of a heater, a sleeve, an electric terminal wire, an electric terminal lead-out end, a support frame, a soldering iron head, a heat dissipation pipe, a positioning pipe, a nut, and a fastening connection. The board and the connecting body are connected together. The connection relationship: the heater and the soldering iron head are tightly socketed, the sleeve is placed on the electric terminal wire, the heater is fixedly connected to the lead-out end through the electric end wire and connected to the external power supply, and the electric terminal leads out The end is embedded in the groove on the support frame, the soldering iron head is socketed with the heat dissipation pipe, the heater is connected with the handle through the support frame, the heat dissipation pipe is fixedly connected with the connection plate, and the main body of the soldering iron is fixedly connected with the handle through the connection body. This soldering iron adopts ultra-low safe voltage and low power consumption. It has the characteristics of fast heating, high efficiency, low power, high working temperature, easy replacement of soldering iron tips and heaters, etc.

Description

Ultra-low safe voltage low power consumption high-efficiency electric soldering iron

The utility model relates to an ultra-low safe voltage, low power consumption and high-efficiency electric soldering iron, which belongs to an electrical tool.

The electric soldering iron is a common welding tool that is extremely consumable, and is widely used in industries such as electronic appliances and other industries involving the welding of electronic components and general small parts. Due to the large amount of use, it is a kind of electric heating appliance with high power consumption. In the prior art, the heating forms of electric soldering iron heaters can be roughly arranged according to the amount as follows: heaters such as nickel-chromium wire or similar iron-chromium wire, ceramic heaters and PTC thermistor heaters . Because they each show their unique advantages, people can only choose according to the scope of application, the limit of production technology and the economic value that must be considered first in commercialization. The above three heaters have their own characteristics. The notable features of the electric heating wire heater are low cost, simple manufacturing process, and a wide range of heating power options. Compared with other heaters, the disadvantage of high-power and high-temperature soldering iron heaters is that they are bulky. , Short life. As for the electric heating wire heater with low power (<50W), the service life can be improved through certain process and structural treatment. Ceramic heaters and PTC thermistor heaters have the characteristics of long life, but the cost is high and the power control range is small. Especially for PTC electric soldering irons, the maximum temperature of the solder tip is 300-340°C, and the heater must be carefully designed. thermal load capacity. Because its heating power is generally around 10W, in this case, it must be fast heating and automatic constant temperature to achieve. This kind of electric soldering iron can adapt to the precise welding of PC boards, but it is powerless for the production line of electronics factories or the welding of parts with high heat load, because in this case, the temperature of the soldering tip is generally required to be 400-450 °C, and it should have corresponding thermal compensation capabilities. heat capacity. In fact, soldering irons with this capability are in high demand. To sum up, its basic characteristics and requirements are: 1. Use electric heating wire (Ni-Cr, Fe-Cr, etc.) heater or ceramic heater; 2. Rated voltage AC24V or 220V, power consumption output 50-60W; 3. Welding tip The temperature is 400-480°C.

The purpose of this utility model is to overcome and solve the problem that the high-power and high-temperature soldering iron heaters in existing electric soldering irons have large volume and short life, while ceramic heaters and PTC thermistor heaters have high cost, and PTC heaters Shortcomings and problems such as small power control range and low working temperature, research and design a heater and soldering iron tip (soldering tip) with low power consumption and rapid heating, which has a rapid heating effect, and the power control temperature range is large, which can quickly reach High working temperature, rapid heat recovery function and high thermal compensation ability, small size, low cost, long life, ultra-low safe voltage, low power consumption and high efficiency electric soldering iron.

The utility model is realized through the following structural technical scheme: the structural diagram of the heater and the supporting frame of the ultra-low safe voltage, low power consumption and high-efficiency electric soldering iron is shown in Figure 1, and the ultra-low safe voltage, low power consumption and high-efficiency electric soldering iron The schematic diagram of the overall structure is shown in Figure 2. It consists of a heater 1, heater electric terminal lead-out sleeve 2, heater electric terminal lead and power input lead 3, 4, groove 5 embedded in the heater lead-out end in the support frame, heater electric terminal lead-out 6, The support frame 7 connecting the heater and the socket handle, the soldering iron tip (welding nozzle) 8, the heat dissipation pipe 9, the positioning pipe 10, the locking nut 11, the fastening connecting plate 12, the electric soldering iron main body and the soldering iron handle connecting body 13 are common Connection composition. Its interconnection relationship is as follows: the heater 1 is tightly socketed with the inner pipe wall of the soldering iron tip 8; The terminal wire 3 is fixedly connected to the lead-out end 6 of the heater electric terminal, and is electrically connected to the external power supply. The lead-out end 6 of the heater electric terminal is embedded in the groove 5 of the support frame 7. The device 1 is connected with the plug-in handle through the support frame 7, the heater core is put on the positioning tube 10 and positioned with the heat dissipation pipe 9, and the heat dissipation pipe 9 is fixedly connected with the fastening connecting plate 12 through the locking nut 11, and the heater 1 , support frame 7, soldering iron tip (soldering nozzle) 8, the electric soldering iron main body that radiating pipe 9 constitutes is connected with soldering iron handle through connecting body 13; Small and low-power heater with heat capacity and strong heat supply and compensation for soldering iron tip (soldering nozzle), for example: rated voltage 6-12V (DC or AC), power consumption 6-12W, time for melting tin (Sn60%) after power-on 10-15 seconds, the working temperature of the soldering iron tip (soldering tip) is 400-480°C, the melting tin (Sn60%, Φ1.5mm tin) capacity is 450-500mm/min; A soldering iron tip that absorbs and has the best adaptation to working loads such as tip temperature and heat capacity and thermal compensation capabilities. It is similar to a thin tube with one end closed at the working end. The diameter of the inner tube of the soldering iron tip is slightly larger than the outer diameter of the heater. It can achieve the best thermal coupling with the heater. The depth of the inner tube of the soldering iron tip is close to the length of the heater 1. Replacement soldering iron head (welding tip) series, it is a part of the main body that can be formed with heater 1 in order to implement low power consumption high-efficiency electric soldering iron welding entity; Support frame 7 is a plate with high strength, high insulation , rod-shaped, tubular objects, which can realize the connection between the heater electric terminal and the power supply electric input terminal on the support frame in various wiring forms such as copper coating on the component, winding electrodes, wire connection, screw connection, etc. and firmly supported on the soldering iron. on the handle or on the handle attachment.

Compared with the conventionally used electric soldering iron, the utility model has the following advantages and beneficial effects: (1) adopts an ultra-low safety voltage that is safe for the human body; Tsui), has the effect of rapid heating (6.5W ~ 10W, it can work after 10 seconds of power on); (3) can ensure a suitable working temperature, although the power consumption is very low, it can quickly reach a high working temperature (400 ~480°C); (4) has rapid heat recovery function and high thermal compensation capability; (5) the electric soldering iron reduces the temperature at the connection end of the handle of the soldering iron heat dissipation pipe, so that the heat of the handle is low; (6) utilizes the technology of the utility model , In occasions without AC power supply (such as outdoors, high altitude), it can be made into a pocket pen-shaped soldering iron for easy portability and work, or use a car, motorcycle power supply, or use a small and lightweight battery (such as 9×5×5cm, 12V, 1.3A/C is used for 8W soldering iron and can work continuously for at least 2 hours); (7) The utility model has a support frame 7, which makes the process simple, the installation is firm, and it has a certain heat resistance function, so that the heat can be fully utilized , to avoid heat dissipation and energy consumption, and to facilitate quick replacement of the soldering iron tip (soldering tip); (8) because the electric heater used in the utility model and the matching soldering iron tip (soldering tip) are small, due to its reasonable The design makes it cheap. Although both the heater and the tip of the soldering iron (soldering tip) have the advantage of long life, they can be replaced at will without causing high economic investment.

The following is a further description of the accompanying drawings in the specification as follows: Figure 1 is a schematic structural view of the heater and support frame of an ultra-low safe voltage, low power consumption, and high-efficiency electric soldering iron, and Figure 2 is a schematic diagram of the overall structure of an ultra-low safe voltage, low power consumption, and high-efficiency electric soldering iron . In the figure: 1 is the heater, 2 is the bushing of the lead-out end of the electric terminal of the heater, 3 and 4 are the lead wires of the electric terminal of the heater and the power input line, 5 is the groove embedded in the lead-out end of the heater in the supporting frame, and 6 is the heater The lead-out end of the electric terminal, 7 is the supporting frame connecting the heater and the plug-in handle, 8 is the soldering iron head (soldering nozzle), 9 is the heat dissipation pipe, 10 is the positioning pipe, 11 is the locking nut, and 12 is the fastening connecting plate , 13 is the connecting body of the electric soldering iron main body and the soldering iron handle.

The implementation of the present utility model is relatively simple, as long as each part is designed according to the accompanying drawings Fig. 1 and Fig. 2, and connected and installed according to the connection relationship described in the above specification, the utility model can be better implemented. The details are as follows: (1) Put the electric terminal wires 3 and 4 of the heater 1 into the lead-out sleeves 2 respectively, then align the lead-out end 6 of the electric terminal and embed it in the groove 5 on the support frame 7, and then place the heating Electrical terminal wires 3 and 4 are respectively welded on the electrodes on both sides of the support frame 7; (2) Insert the combined body of the heater 1 and the support frame 7 into the connection between the assembled fastening connecting plate 12 and the soldering iron handle coupling body 13 Fit the through hole of the part into the groove, then put the positioning tube 10 on the heater core, and put the soldering iron tip (welding nozzle) 8 on the heater core, then put the stainless steel heat dissipation pipe 9, and use the locking screw Cap 11 is screwed on the screw thread of fastening connecting plate 12 and is fastened; (3) after heater power supply input lead wire (electrical terminal lead wire) 3,4 passes through the through hole of soldering iron handle, make electric end lead wire 3,4 respectively with screw The heater is fixedly connected to the power input wires 3 and 4 on both sides of the support frame 7, and the other end can be respectively connected to a cheap safe power supply device that outputs an ultra-low safe voltage (single-phase not exceeding 42V, three-phase not exceeding 24V) . After the electric soldering iron main body is connected and fixed with the soldering iron handle, the implementation of the utility model has just been established. As for its component size suggestion: the outer diameter Φ of the heater core (heating part) can be ≤4.5mm, its length can be ≤25mm, and its heating power consumption can be ≤20w. The soldering iron tip (soldering tip) and the heater should be able to achieve sufficient thermal coupling, the heat emitted by the heater can be fully absorbed by the soldering iron tip, and the length of the soldering iron tip (soldering tip) inserted into the heater can be ≤ 26mm.

Claims (4)

1. An ultra-low safe voltage, low power consumption and high-efficiency electric soldering iron is characterized in that it consists of a heater (1), a heater electric terminal lead-out sleeve (2), a heater electric terminal wire and a power input wire (3) , (4), the groove (5) in which the lead-out end of the heater is embedded in the support frame, the lead-out end of the electric terminal of the heater (6), the support frame (7) connecting the heater and the plug handle, the soldering iron tip (8), the heat dissipation Tube (9), positioning tube (10), locking nut (11) fastening connecting plate (12), electric soldering iron main body and soldering iron handle connector (13) are connected together to form, and its interconnection relationship is: heating The device (1) is tightly socketed with the inner pipe wall of the soldering iron tip (8), and the sleeve (2) at the lead-out end of the electric terminal of the heater is respectively inserted into the lead wire (3) (4) of the electric terminal of the heater, and the heater (1) Through its electric terminal lead wire (3), it is fixedly connected with the heater electric terminal lead-out end (6) and electrically connected with the external power supply, and the heater electric terminal lead-out end (6) is embedded in the groove (5) of the support frame (7). ), the soldering iron head is socketed with the heat dissipation pipe, the heater (1) is connected with the socket handle through the support frame (7), the heater core is put on the positioning pipe (10) and the heat dissipation pipe (9) for positioning, and the heat dissipation pipe (9) An electric soldering iron composed of a heater (1), a support frame (7), a soldering iron tip (8), and a heat dissipation pipe (9) is fixedly connected with a fastening connecting plate (12) by a lock nut (11) The main body is connected with the handle of the soldering iron through the coupling body (13). 2. An ultra-low safe voltage, low power consumption and high-efficiency electric soldering iron according to claim 1, characterized in that the heater (1) is a kind of heater (1) that can be heated quickly in a short time after being energized and has sufficient heat capacity. It is also a small and low-power heater with strong heat supply and compensation for the soldering iron tip (soldering tip). 3. An ultra-low safe voltage, low power consumption and high-efficiency electric soldering iron according to claim 1, characterized in that said soldering iron tip (8) is one that can fully absorb heat and has the ability to achieve the best adaptation to the workload The soldering iron tip is similar to a thin tube closed at one end of the working end. The diameter of the inner tube of the soldering iron tip is slightly larger than the outer diameter of the heater, which can achieve the best thermal coupling with the heater. The depth of the inner tube of the soldering iron tip is the same as that of the heater (1) The length is close, and it is a set of replaceable soldering iron tips that can be quickly replaced, which is a part of the main body of the low-power and high-efficiency electric soldering iron that can be integrated with the heater (1). 4. An ultra-low safe voltage, low power consumption and high-efficiency electric soldering iron according to claim 1, characterized in that the support frame (7) is a plate-shaped, rod-shaped, or tubular object with high strength and high insulation, It can realize the connection between the electric terminal of the heater and the electric input terminal of the power supply on the support frame in various wiring forms such as copper coating on the component, winding electrode, wire connection, and screw connection, and it can be firmly supported on the soldering iron handle or handle connector. superior.

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