CN210060046U - Preheating device for manual welding of circuit board - Google Patents

Abstract

The utility model provides a preheating device for manual welding of a circuit board, which comprises a case, a power module, a display control module, a temperature measuring module and a heating module; the power supply module is arranged in the case and used for supplying power to the display control module, the temperature measuring module and the heating module; the upper cover plate of the case is used as a preheating table top, the front surface of the case is provided with a guide rail, and a slide block is arranged on the guide rail and is used for being matched with the circuit board and adjusting the assembly position of the circuit board; the back of the upper cover plate is provided with a protection net for protecting and isolating the circuit board from the heating module; the heating module is tightly attached to the protection net and arranged on the back of the upper cover plate; the temperature measuring module is arranged in the case and used for measuring the temperature of the upper cover plate of the case; the display control module is arranged on the side face of the case and comprises a control circuit module, a power switch button, a temperature adjusting knob and a temperature display screen. The utility model discloses with low costs, strengthened the maneuverability of manual dress that welds, effectively improved and welded dress efficiency and welding quality, reduced the circuit board damage of welding the in-process.

Description

Preheating device for manual welding of circuit board

Technical Field

The utility model belongs to the manual welding field of electron dress antithetical couplet specifically is a preheating device of manual dress that welds of circuit board.

Background

With the densification and integration of electronic products, the application of multilayer circuit boards is more and more extensive. The multilayer circuit board is generally grounded in a large area, and due to the particularity of large-area grounding, when a manual welding mode is adopted, the electric soldering iron has high heat loss in the welding process, and soldering tin cannot fully wet a bonding pad, so that the welding difficulty is high, and sometimes even welding cannot be finished.

In the process of repairing the circuit board, the circuit board is generally repaired by using an electric soldering iron, and the local high temperature of the soldering iron is usually up to 300-400 ℃, so that the local temperature of the bonding pad is too high, the resin adhesive below the copper foil of the bonding pad falls off under high temperature, and the phenomenon that the bonding pad falls off occurs.

Disclosure of Invention

The method aims to solve the problems of high heat loss, poor solder fluidity and overhigh local welding heat in the manual circuit board welding process. The utility model provides a preheating device of manual dress that welds of circuit board through carrying out the constant temperature heating to the circuit board, makes to weld dress in-process pad heat conduction fast, and soldering tin mobility is good, reduces the heat loss of manual dress in-process electric iron that welds, guarantees that soldering tin can fully wet, improves the circuit board and welds dress efficiency and quality, and the component changes the dismantlement on the circuit board.

The technical scheme of the utility model is that:

the preheating device for the manual welding of the circuit board is characterized in that: the temperature measurement device comprises a case, a power supply module, a display control module, a temperature measurement module and a heating module;

the power supply module is arranged in the case and used for supplying power to the display control module, the temperature measuring module and the heating module;

the upper cover plate of the case is used as a preheating table top, the front surface of the upper cover plate is provided with a guide rail, and a slide block is arranged on the guide rail and used for being matched with the circuit board and being capable of adjusting the assembly position of the circuit board;

the back of the upper cover plate is provided with a protection net for protecting and isolating the circuit board from the heating module;

the heating module is tightly attached to the protection net and mounted on the back of the upper cover plate;

the temperature measuring module is arranged in the case and is used for measuring the temperature of the upper cover plate of the case;

the display control module is arranged on the side face of the case and comprises a control circuit module, a power switch button, a temperature adjusting knob and a temperature display screen; the control circuit module is connected with the power supply module, the heating module and the temperature measuring module through electric circuits; the temperature measuring module can transmit the measured temperature of the upper cover plate of the case to the control circuit module and display the current temperature on the temperature display screen; the set temperature can be output to the control circuit module through the temperature adjusting knob, and the set temperature value is displayed on the temperature display screen; the control circuit module controls the heating model according to the set temperature and the current temperature, so that the temperature of the upper cover plate reaches and keeps the set temperature.

Advantageous effects

The utility model provides a preheating device of manual dress that welds of circuit board is with low costs, has strengthened the maneuverability of manual dress that welds, has effectively improved and has welded dress efficiency and welding quality, reduces the circuit board damage of welding the dress in-process.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1: the utility model discloses a structure explosion view.

Wherein: the device comprises a guide rail 1, an upper cover plate 2, a protection net 3, a heating module 4, a power module 5, a display control module 6, a chassis 7 and a display panel 8.

Detailed Description

The following detailed description of embodiments of the invention is intended to be illustrative, and not to be construed as limiting the invention.

The utility model provides a preheating device of manual dress that welds of circuit board, including quick-witted case, power module, display control module, temperature measurement module and heating module.

The power module is arranged in the case and used for supplying power to the display control module, the temperature measuring module and the heating module.

The upper cover plate of the case is used as a preheating table board, the front surface of the upper cover plate is provided with a guide rail, and a sliding block is arranged on the guide rail and used for being matched with the circuit board and being capable of adjusting the assembly position of the circuit board.

And the back surface of the upper cover plate is provided with a protection net for protecting and isolating the circuit board and the heating module.

The heating module is tightly attached to the protection net and mounted on the back face of the upper cover plate and used for uniformly heating the circuit board at a constant temperature.

The temperature measuring module is installed inside the case and used for measuring the temperature of the upper cover plate of the case.

The display control module is arranged on the side face of the case and comprises a control circuit module, a power switch button, a temperature adjusting knob and a temperature display screen; the control circuit module is connected with the power supply module, the heating module and the temperature measuring module through electric circuits; the temperature measuring module can transmit the measured temperature of the upper cover plate of the case to the control circuit module and display the current temperature on the temperature display screen; the set temperature can be output to the control circuit module through the temperature adjusting knob, and the set temperature value is displayed on the temperature display screen; the control circuit module controls the heating model according to the set temperature and the current temperature, so that the temperature of the upper cover plate reaches and keeps the set temperature.

The utility model provides a preheating device is with low costs, has strengthened the maneuverability of manual dress of welding, has effectively improved and has welded dress efficiency and welding quality, reduces the circuit board damage of welding the dress in-process. The specific operation steps are as follows:

1. mounting the circuit board to a preheating table of a preheating device;

2. the position of the circuit board is adjusted through the sliding block, so that a region to be welded of the circuit board is positioned in a heating region right above the heating sheet;

3. opening a preheating device, and setting the preheating temperature to be 150 ℃;

4. after the current temperature rises to the set temperature, the device keeps constant temperature heating on the circuit board, and the circuit board is welded or components are disassembled by using an electric soldering iron;

5. and closing the preheating device, and cooling and then disassembling the circuit board.

Although embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the principles and spirit of the present invention.

Claims (1)

1. The utility model provides a preheating device of manual dress that welds of circuit board which characterized in that: the temperature measurement device comprises a case, a power supply module, a display control module, a temperature measurement module and a heating module;

the power supply module is arranged in the case and used for supplying power to the display control module, the temperature measuring module and the heating module;

the upper cover plate of the case is used as a preheating table top, the front surface of the upper cover plate is provided with a guide rail, and a slide block is arranged on the guide rail and used for being matched with the circuit board and being capable of adjusting the assembly position of the circuit board;

the back of the upper cover plate is provided with a protection net for protecting and isolating the circuit board from the heating module;

the heating module is tightly attached to the protection net and mounted on the back of the upper cover plate;

the temperature measuring module is arranged in the case and is used for measuring the temperature of the upper cover plate of the case;

the display control module is arranged on the side face of the case and comprises a control circuit module, a power switch button, a temperature adjusting knob and a temperature display screen; the control circuit module is connected with the power supply module, the heating module and the temperature measuring module through electric circuits; the temperature measuring module can transmit the measured temperature of the upper cover plate of the case to the control circuit module and display the current temperature on the temperature display screen; the set temperature can be output to the control circuit module through the temperature adjusting knob, and the set temperature value is displayed on the temperature display screen; the control circuit module controls the heating model according to the set temperature and the current temperature, so that the temperature of the upper cover plate reaches and keeps the set temperature.

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