Portable constant-temperature electric soldering iron
By using high-temperature resistant inorganic adhesive for sealing and an air convection groove design, the problem of poor portability and heat dissipation of traditional constant temperature soldering irons is solved, realizing a highly efficient, energy-saving, and portable soldering iron suitable for various power interfaces.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-10
- Publication Date
- 2026-03-24
AI Technical Summary
Traditional constant temperature soldering irons are not portable, have serious heat dissipation problems, and suffer from significant heat loss and energy waste.
The heating core and heating component mounting bracket are sealed with high-temperature resistant inorganic adhesive, and an air convection channel is designed for heat dissipation. The structure is optimized to eliminate the heavy transformer and provides multiple power interfaces.
It improves thermal efficiency and portability, enhances heat dissipation performance, and increases user comfort and safety, meeting the needs of use in different environments.
Smart Images

Figure CN224026671U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to electric soldering iron technical field, especially a kind of portable constant-temperature electric soldering iron. BACKGROUND
[0002] With the rapid development of electronic technology, the demand for welding tools in the maintenance and manufacturing process of electronic equipment is increasing. As a common welding tool, the performance of constant-temperature electric soldering iron directly affects the welding quality and efficiency. Traditional constant-temperature electric soldering iron mainly uses inductive heating or transformer constant-temperature method, which has some shortcomings.
[0003] Poor portability: transformer constant-temperature electric soldering iron usually comes with a heavy transformer, which increases the weight of the equipment and limits its portability, making it difficult to move or operate on site.
[0004] Heat dissipation problem: when working for a long time, the heating element of electric soldering iron and handle are easy to accumulate heat, causing the handle to overheat, making the user feel uncomfortable, and even possible scalding. The existing design often ignores this heat dissipation problem and does not take effective heat dissipation measures.
[0005] Heat loss and power waste: in the existing electric soldering iron, the connection between the heating core and the heating assembly fixing frame is often not tight enough, resulting in heat loss, which not only reduces the heating efficiency, but also increases the power consumption. INVENTION CONTENTS
[0006] In view of the problems existing in the prior art, the utility model provides a portable constant-temperature electric soldering iron.
[0007] In order to achieve the above purpose, the technical scheme of the utility model is as follows:
[0008] The utility model provides a portable constant-temperature electric soldering iron, which comprises a main shell, a constant-temperature control panel arranged in the main shell, a heating assembly fixing frame arranged at one end of the main shell, a heating assembly installed on the heating assembly fixing frame, and an end cover fixing frame arranged at the other end of the main shell.
[0009] The heating assembly comprises a heating core and a soldering iron nozzle connected with the heating core, one end of the heating core is arranged in the heating assembly fixing frame, and high-temperature resistant inorganic glue is arranged at both ends of the heating assembly fixing frame to seal the heating core and the heating assembly fixing frame.
[0010] A plurality of first air convection grooves are formed on the end face of the heating assembly fixing frame, and a plurality of second air convection grooves corresponding to the first air convection grooves are formed on the end cover fixing frame, so that air flows and dissipates heat in the main shell.
[0011] Preferably, the heating assembly further comprises a soldering tip fastener, a heating core protective sleeve sleeved on the heating core, and a fixing nut, the soldering tip fastener is fixed with the heating assembly fixing frame, and the heating core protective sleeve is fixed with the soldering tip fastener through the fixing nut.
[0012] Preferably, a nameplate panel is further arranged on the main shell and electrically connected with the corresponding end of the thermostat control panel.
[0013] Preferably, the nameplate panel is provided with a temperature display screen, control buttons and indicator lights.
[0014] Preferably, the portable thermostat electric soldering iron further comprises a front baffle, a rear baffle and an end cover, the front baffle is arranged in one end of the main shell and mounted on the end face of the heating assembly fixing frame, the rear baffle is arranged in the other end of the main shell and mounted on the end cover fixing frame, and the end cover is mounted on the end cover fixing frame.
[0015] Preferably, the soldering tip fastener is fixed with the heating assembly fixing frame through threads.
[0016] Preferably, the portable thermostat electric soldering iron further comprises an AC-DC power conversion module and a plug, the AC-DC power conversion module is arranged in the main shell and electrically connected with the thermostat control panel, and the plug is connected with the AC-DC power conversion module through the power cord after passing through the end cover and the end cover fixing frame.
[0017] Preferably, the portable thermostat electric soldering iron further comprises a TYPE-C interface, the TYPE-C interface is electrically connected with the corresponding end of the thermostat control panel, and the TYPE-C interface is mounted on the tail of the end cover fixing frame.
[0018] Preferably, the portable thermostat electric soldering iron further comprises a DC connector, the DC connector is electrically connected with the corresponding end of the thermostat control panel, and the DC connector is mounted on the tail of the end cover fixing frame.
[0019] The technical scheme of the utility model has the following beneficial effects:
[0020] Energy efficiency is improved: by using high-temperature inorganic glue to seal and fix the heating core and the heating assembly fixing frame, the utility model effectively reduces heat loss, thereby improving thermal efficiency and saving electric energy.
[0021] Portability is enhanced: by optimizing the structural design, the utility model reduces the weight of the equipment, especially removes the heavy part of the traditional transformer, so that the electric soldering iron is more portable, convenient to carry and operate on site.
[0022] Improved heat dissipation performance: Heat dissipation has been specially considered in the design. By setting air convection slots on the heating component fixing bracket and the end cover fixing bracket to facilitate air flow, this utility model significantly improves heat dissipation efficiency and extends the service life of the equipment.
[0023] Improved user comfort: By sealing the heating element with high-temperature adhesive at the junction of the structure and the handle, and by creating a groove at the joint with the handle to allow airflow, the handle is effectively prevented from getting too hot, thus improving safety and comfort during use. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the structure of the present utility model. Figure One ;
[0025] Figure 2 This is an exploded view of the present invention;
[0026] Figure 3 This is a schematic diagram of the structure of the heating element fixing bracket of this utility model;
[0027] Figure 4 This is a schematic diagram of the structure of the present invention, in which one end of the heating core is placed inside the heating component fixing frame;
[0028] Figure 5 This is a schematic diagram of the end cap fixing bracket of this utility model;
[0029] Figure 6 This is a schematic diagram showing the installation of the heating element mounting bracket and the main housing of this utility model.
[0030] Figure 7 This is a schematic diagram showing the installation of the end cap fixing bracket and the main housing of this utility model;
[0031] Figure 8 This is a schematic diagram of the structure of the nameplate panel of this utility model;
[0032] Figure 9 This is a schematic diagram of the structure of the present utility model. Figure Two ;
[0033] Figure 10 This is a schematic diagram of the structure of the present utility model. Figure Three . Detailed Implementation
[0034] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.
[0035] In the description of the utility model, it is necessary to understand that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model indicated or implied by the indicated device or element must have a particular orientation, a particular orientation and operation, and therefore cannot be understood as limiting the utility model.
[0036] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise specifically limited.
[0037] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0038] In the utility model, unless otherwise specifically defined and limited, the "upper" or "lower" of the first feature in the second feature can include the direct contact of the first and second features, or the indirect contact of the first and second features through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature in the second feature include the vertical direction of the first feature above and oblique above the second feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature in the second feature include the vertical direction of the first feature below and oblique below the second feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.
[0039] Referring Figures 1 to 10 The utility model provides a kind of portable constant temperature electric iron, comprising: main casing 1, constant temperature control panel 6 being arranged in main casing 1, heating assembly fixing frame 3 being arranged in one end of main casing 1, heating assembly 2 being installed on heating assembly fixing frame 3, end cover fixing frame 4 being equipped in the other end of main casing 1;
[0040] The heating assembly 2 includes a heating core 201, and a soldering tip 202 connected to the heating core 201. One end of the heating core 201 is placed in the heating assembly fixing frame 3, and high-temperature-resistant inorganic glue is filled in both ends of the heating assembly fixing frame 3 (at 30 and 33). The heating core 201 is sealed with the heating assembly fixing frame 3 by the high-temperature-resistant inorganic glue. The heat efficiency is improved and energy is saved. The heat loss is effectively reduced by sealing the heating core 201 with high-temperature-resistant inorganic glue at both ends of the heating assembly fixing frame 3. This sealing method not only improves the heat efficiency, but also helps to save energy, because the energy that must be continuously supplied to maintain the required temperature is reduced.
[0041] A plurality of first air convection grooves 301 are formed on the end face of the heating assembly fixing frame 3, and a plurality of second air convection grooves 401 corresponding to the first air convection grooves are formed on the end cover fixing frame 4, so that air flows and dissipates heat in the main shell 1. For example, referring to Figures 6-7 , after the air enters the main shell 1 through the hole 103 formed between the first air convection groove 301 and the main shell, it goes out from the hole two 104 formed between the second air convection groove 401 and the main shell, which facilitates heat dissipation and improves the service life of the residual piece.
[0042] Further, the heating assembly 2 further includes a soldering tip fastener 203, a heating core protection sleeve 204 sleeved on the heating core 201, and a fixing nut 205. The soldering tip fastener 203 is fixed with the heating assembly fixing frame 3, and the heating core protection sleeve 204 is fixed with the soldering tip fastener 203 through the fixing nut 205. The soldering tip fastener 203 is fixed with the heating assembly fixing frame 3 by screwing. In this embodiment, the heating assembly 2 is convenient to maintain and replace: the design of the soldering tip fastener 203 and the fixing nut 205 allows the user to easily disassemble and reassemble the soldering tip or the heating core, which is convenient for maintenance and replacement. This design improves the maintainability of the electric soldering iron and reduces the maintenance cost. Improve the safety of operation: by firmly fixing the heating core 201 in the heating assembly fixing frame 3 and using the protection sleeve and the fastener, the utility model reduces the risk of displacement or damage of the heating core during operation, thereby improving the safety of operation
[0043] Further, referring to Figure 8The main shell 1 is also provided with a nameplate panel 5, which is electrically connected with the corresponding end of the constant temperature control panel 6. The nameplate panel 2 is provided with a temperature display screen, control buttons and indicator lights. The temperature display screen on the nameplate panel 5 can display the working temperature of the electric iron in real time, so that the operator can intuitively monitor the temperature and ensure that the welding process is carried out at an appropriate temperature. Through the control buttons on the nameplate panel, the user can conveniently adjust and set the required welding temperature, improving the flexibility and convenience of operation. The indicator light can indicate the working state of the electric iron, such as heating, constant temperature, failure, etc., helping the user to understand the equipment state in time, avoiding misoperation, and improving the safety of operation. Through the combination of the indicator light and the display screen, the user can more easily identify and diagnose possible faults, such as temperature setting error, equipment failure, etc., so as to quickly take corresponding measures.
[0044] The following is an explanation of temperature setting: plug the power plug of the electric iron into the socket with power, the current temperature of the electric iron can be seen, for example, the current room temperature is 25℃, the temperature displayed on the display screen is 25℃, when the customer needs to heat to 280℃, the set temperature needs to be changed, press the temperature up button △, at this time the PVSV indicator light (such as PV / SV indicator light) is on, indicating that the current represents the set temperature, if the PVSV is off, it represents the measured temperature. If you want to lower the temperature, press the temperature down button ▼, you can immediately judge the current set temperature and measured temperature according to the brightness or non-brightness of the PVSV display light. When the measured temperature is lower than the set temperature, the OUT light will flash on and off, indicating heating when the light is on, and no heating when the light is off. Finally, it will be stable at the set temperature according to the value of the measured temperature and keep constant temperature. After the electric iron is heated, the actual temperature of the electric iron heating core is displayed, which is the Celsius temperature, and only the integer temperature can be displayed. The temperature of the electric iron core is generally higher than that of the electric iron head, usually the core temperature is about 80° to 100° higher than the head temperature. The actual welding head temperature is mainly based on the welding head temperature.
[0045] Only the PID value is set properly, the set temperature can be measured, the electric iron has three buttons, the setting method is as follows, long press F button, P indicator light will light up, at this time the digital tube represents the P value, press the up key or down key, you can change the set P value, P value can not be too large, too large will cause overshoot, too small will make the temperature rise slowly, so you need to adjust it. Press again, I indicator light, at this time you can set I value, heating temperature higher than the set temperature, I value is too large, need to adjust the down key, otherwise, the heating temperature is less than the set temperature, you need to adjust the up temperature button, until the appropriate. Press F button again, RE indicator light, this is the relative temperature alarm, for example, set temperature 300℃, PE set to 10, at this time the relative temperature exceeds 310℃, stop heating to ensure welding safety, RE value can not be too small, usually set to 10℃. Press F button again, return to display temperature. AL indicator light, indicating that the temperature exceeds the alarm temperature, need to wait for cooling. Directly press the up temperature key or down temperature key, the indicator light PV / SV is on, indicating the set temperature, and the indicator light PV / SV is off, indicating the measured temperature. Usually, when the temperature rises, the temperature rises too fast, which will cause overshoot, the overshoot is determined by P value, press the function key F for a long time, the P indicator light will light up, at this time the display is the actual value of P, if the temperature overshoot is large, you need to adjust the P value, otherwise you need to adjust the P value. Press the function key F again, the I indicator light will light up, which shows the actual value of I, for example, the set temperature is 320 degrees, if the actual temperature value is lower than the set temperature value after the temperature controller stabilizes, it means that the I value is small, press the temperature key to increase the I value, which can increase the measured temperature value, otherwise you need to reduce I to make the actual measured temperature value equal to the set temperature value. Press the function key F again, the RE light will light up, which is the alarm temperature setting, if the temperature exceeds the set value + alarm temperature, the temperature controller will lose the heating function, the temperature will drop quickly, for example, the set temperature is 320°, the alarm temperature is 10°, once the measured temperature exceeds 330°, the alarm AL light will light up, indicating that the heating function is lost, to protect the heating function of the temperature controller, the alarm temperature is usually set to 10°, which is too small will cause unnecessary alarm fluctuations. Press the function key F again, return to display the measured temperature.
[0046] Further, the portable constant temperature electric iron further comprises a front baffle 80, a rear baffle 8 and an end cover 7; the front baffle 80 is arranged in one end of the main shell 1 and mounted on the end face of the heating component fixing frame 3, the rear baffle 8 is arranged in the other end of the main shell 1 and mounted on the end cover fixing frame 4, and the end cover 7 is mounted on the end cover fixing frame 4.
[0047] The first form of the embodiment adopts an AC power supply version: the portable constant-temperature electric iron further comprises an AC-DC power supply conversion module 9 and a plug 20; the AC-DC power supply conversion module 9 is arranged in the main shell 1 and is electrically connected with the constant-temperature control panel 6; the plug 20 is connected with the AC-DC power supply conversion module 9 through the power line passing through the end cover 7 and the end cover fixing frame 4. The first form: the AC power supply version adopts the design of the AC-DC power supply conversion module and the plug, so that the electric iron can be adapted to a wide range of AC power supplies, improving the versatility and convenience of the equipment. The AC power supply interface has good compatibility and is suitable for most commercial and home environments without the need for additional adapters or converters.
[0048] The AC-DC power supply conversion module can provide stable DC power supply to ensure the stable operation of the constant-temperature control panel and the heating assembly.
[0049] The second form of the embodiment adopts a DC power supply TYPE-C interface version: the portable constant-temperature electric iron further comprises a TYPE-C interface 30 which is electrically connected with the corresponding end of the constant-temperature control panel 6; the TYPE-C interface 30 is installed on the tail of the end cover fixing frame 4. The TYPE-C interface is a modern power and data interface widely used at present, has good compatibility and fast charging capacity, and the portable design of the TYPE-C interface makes the electric iron more suitable for mobile use, convenient to carry and operate on site.
[0050] The third form of the embodiment adopts a DC power supply DC connector version; the portable constant-temperature electric iron further comprises a DC connector 40 which is electrically connected with the corresponding end of the constant-temperature control panel 6, and the DC connector 40 is installed on the tail of the end cover fixing frame 4. The design of the DC connector is usually more durable and suitable for frequent plugging and long-term use. The DC connector can be designed with reverse connection protection to improve the use safety and prevent equipment damage caused by incorrect connection.
[0051] In summary, the portable constant-temperature electric iron of the utility model provides multiple power supply interface forms, not only improves the versatility, compatibility and portability of the equipment, but also enhances the professionalism and reliability of the equipment, and meets the use requirements of different users in various environments.
[0052] The technical scheme of the utility model has the following beneficial effects:
[0053] Improve energy efficiency: by using high-temperature inorganic glue to seal and fix the heating core and the heating assembly fixing frame, the utility model effectively reduces heat loss, thereby improving thermal efficiency and saving electric energy.
[0054] Enhanced portability: By optimizing the structural design, the utility model lightens the weight of the equipment, especially removes the heavy part of the traditional transformer, so that the electric soldering iron is more portable and convenient for on-site operation.
[0055] Improved heat dissipation performance: The design particularly considers the heat dissipation problem, air convection grooves are arranged on the heating component fixing frame and the end cover fixing frame to facilitate air flow, the utility model significantly improves the heat dissipation efficiency and prolongs the service life of the equipment.
[0056] Improve the comfort of use: By using high-temperature glue to seal the heating body at the junction of the high-temperature structure and the handle, and slotting at the junction with the handle to facilitate air flow, the handle is effectively prevented from being scalded, and the use safety and comfort are improved.
[0057] The above-mentioned is only the preferred embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation made by using the utility model specification and the attached drawings, or direct / indirect application in other related technical fields under the utility model concept of the utility model is included in the patent protection range of the utility model.
Claims
1. A portable constant-temperature soldering iron, characterized in that, include: The main housing, a constant temperature control plate set inside the main housing, a heating element mounting bracket set at one end of the main housing, a heating element mounted on the heating element mounting bracket, and an end cap mounting bracket set at the other end of the main housing; The heating element includes a heating core and a soldering tip connected to the heating core. One end of the heating core is placed inside the heating element mounting bracket, and both ends of the heating element mounting bracket are provided with high-temperature resistant inorganic adhesive. The heating core and the heating element mounting bracket are sealed by the high-temperature resistant inorganic adhesive. The end face of the heating component mounting bracket is provided with a plurality of first air convection grooves, and the end cover mounting bracket is also provided with second air convection grooves corresponding to the plurality of first air convection grooves, so that air flows and dissipates heat within the main housing.
2. The portable constant-temperature soldering iron according to claim 1, characterized in that, The heating element also includes a soldering tip fastener, a heating element protective sleeve fitted on the heating element, and a fixing nut. The soldering tip fastener is fixed to the heating element fixing frame, and the heating element protective sleeve is fixed to the soldering tip fastener by the fixing nut.
3. The portable constant-temperature soldering iron according to claim 1, characterized in that, The main housing is also provided with a nameplate panel, which is electrically connected to the corresponding end of the constant temperature control board.
4. The portable constant-temperature soldering iron according to claim 3, characterized in that, The nameplate panel is equipped with a temperature display screen, control buttons, and indicator lights.
5. The portable constant-temperature soldering iron according to claim 1, characterized in that, The portable constant temperature soldering iron also includes a front baffle, a rear baffle, and an end cover; the front baffle is disposed inside one end of the main housing and is mounted on the end face of the heating element fixing bracket, the rear baffle is disposed inside the other end of the main housing and is mounted on the end cover fixing bracket, and the end cover is mounted on the end cover fixing bracket.
6. The portable constant-temperature soldering iron according to claim 2, characterized in that, The soldering iron tip fastener is fixed to the heating element mounting bracket by threads.
7. The portable constant-temperature soldering iron according to claim 5, characterized in that, The portable constant temperature soldering iron also includes an AC-DC power conversion module and a plug; the AC-DC power conversion module is located inside the main housing and is electrically connected to the constant temperature control board; the plug is connected to the AC-DC power conversion module via a power cord passing through the end cover and the end cover fixing bracket.
8. The portable constant-temperature soldering iron according to claim 5, characterized in that, The portable constant temperature soldering iron also includes a TYPE-C interface, which is electrically connected to the corresponding end of the constant temperature control board; the TYPE-C interface is installed on the tail of the end cap fixing bracket.
9. The portable constant-temperature soldering iron according to claim 5, characterized in that, The portable constant temperature soldering iron also includes a DC connector, the corresponding end of which is electrically connected to the corresponding end of the constant temperature control board, and the DC connector is installed on the tail of the end cap fixing bracket.