Electric soldering iron device

Abstract

The utility model provides an electric soldering iron device which is characterized in that a transmitting end and a receiving end of an infrared correlation sensor are separately arranged on a soldering bit and a soldering iron stand, a relay is arranged on a live wire access path of the soldering bit, and the receiving end of the infrared correlation sensor and a control end of the relay are connected to a control chip. And when the duration of continuously receiving the infrared signal by the receiving end of the infrared correlation sensor reaches a preset time, the relay can be controlled to be disconnected. When the electric soldering iron device provided by the utility model is not used, only the soldering bit needs to be put back on the soldering iron stand, and when the holding time reaches the preset time, the relay can be automatically controlled to cut off the power supply of the soldering bit, so that the soldering bit is prevented from being damaged due to long-time dry burning, the service life of the electric soldering iron can be prolonged, and the energy consumption can be saved.

Description

Technical Field

[0001] The utility model relates to the technical field of soldering irons, in particular to a soldering iron device. Background Art

[0002] The soldering iron converts electrical energy into heat energy, and can provide a contact temperature of 300°C - 400°C at its soldering tip, which can meet the soldering needs of solder, and is mainly used for soldering electronic components in the circuits of electronic devices.

[0003] The soldering tip of a traditional soldering iron generally works by directly connecting to the mains through a cable and a power plug, and there is no switch configuration. When not in use, in order to avoid damage caused by long-term dry burning, power off is required. Since the traditional soldering iron has no switch configuration, in the prior art, the power-off operation generally involves directly pulling out the power plug from the socket, or using a socket with a switch to disconnect the power supply of the socket through the socket switch to disconnect the power supply of the soldering iron.

[0004] However, other electrical devices are generally connected to the socket synchronously. In actual applications, the power-off of the soldering iron mainly adopts the operation of pulling out the power plug of the soldering iron. However, in actual applications, when users use the soldering iron for soldering, they often stop soldering to perform temporary operations such as wire stripping and heat shrink tube sleeving. The operation of pulling out the power plug of the soldering iron is inconvenient. During temporary operations, the power-off operation is often not performed for the sake of convenience. The duration of temporary operations is uncertain. When the duration of temporary operations is relatively long, it is easy to forget to perform the power-off operation, resulting in long-term dry burning damage of the soldering iron and affecting the service life of the soldering iron. Content of the Utility Model

[0005] Based on this, the purpose of the utility model is to provide a soldering iron device to solve the problem that the soldering iron in the prior art is prone to long-term dry burning damage due to untimely power-off operation, which affects the service life of the soldering iron.

[0006] The utility model provides a soldering iron device, which includes a soldering tip, a power conversion module, a control module, and an infrared pair emission sensor. Among them,

[0007] The transmitting end and the receiving end of the infrared pair emission sensor are separately arranged on the soldering iron stand and the soldering tip;

[0008] The control module includes a relay connected in series between the live wire port of the power conversion module and the live wire port of the soldering tip, and a control chip connected to the receiving end and the control end of the relay, and controlling the relay to open when the duration of continuously receiving the infrared signal at the receiving end reaches a preset time;

[0009] The neutral wire port of the power conversion module is connected to the neutral wire port of the soldering iron tip, and the output end of the power conversion module is connected to the working power input ends of the infrared pair of sensors, the control chip, and the relay.

[0010] Optionally, the control module further includes a mode selection switch. The common port and the first active port of the mode selection switch are connected in series between the live wire port of the power conversion module and the relay, and the second active port of the mode selection switch is connected to the live wire port of the soldering iron tip.

[0011] Optionally, the control chip includes a single-chip microcomputer of the STM32F103C8T6 type.

[0012] Optionally, the output end of the power conversion module is a 5V power supply output end.

[0013] Optionally, it further includes the soldering iron stand and the power plug. The power plug, the power conversion module, and the control module are all arranged on the soldering iron stand, and the power plug is connected to the input end of the power conversion module.

[0014] Optionally, the normally open contact switch of the relay is connected in series between the live wire port of the power plug and the live wire port of the soldering iron tip.

[0015] Optionally, the transmitting end of the infrared pair of sensors is arranged on the soldering iron stand, and the receiving end of the infrared pair of sensors is arranged on the soldering iron tip.

[0016] Optionally, both the power conversion module and the control module are arranged on the soldering iron tip. One end of the transmitting end and the receiving end of the infrared pair of sensors is arranged on the soldering iron tip, and the other end is led out of the soldering iron tip through a cable.

[0017] Optionally, the receiving end of the infrared pair of sensors is arranged on the soldering iron tip.

[0018] The soldering iron device provided by the present utility model includes a soldering iron stand, a soldering iron tip, a power plug, a power conversion module, and a control module. Among them, the transmitting end of the infrared pair of sensors is arranged on the soldering iron stand, and the receiving end of the infrared pair of sensors is arranged on the soldering iron tip; the control module includes a relay connected in series on the live wire access path of the soldering iron tip, and a control chip connected to the receiving end and the control end of the relay and controlling the relay to open the circuit when the duration of continuously receiving the infrared signal at the receiving end reaches a preset time. When not in use, only need to put the soldering iron tip back on the soldering iron stand, which can trigger the infrared pair of sensors, thereby triggering the control chip to start timing. When the timing time reaches the preset time, the power supply of the soldering iron tip can be automatically controlled to be disconnected by the relay, avoiding the damage of the soldering iron tip due to long-term dry burning, thus improving the service life of the soldering iron and saving energy consumption. Description of the Drawings

[0019] Figure 1 It is a schematic diagram of the module structure of the soldering iron device in the embodiment of the present invention.

[0020] The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings. Specific Embodiments

[0021] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided so that the disclosure of the present invention is more thorough and comprehensive.

[0022] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0024] To solve the problem that in the prior art, a soldering iron is prone to long-term dry burning damage due to untimely power-off operation, which affects the service life of the soldering iron. The present invention provides a soldering iron device, which is provided with a transmitting end of an infrared pair sensor on the soldering iron stand, a receiving end of the infrared pair sensor on the soldering iron head, a relay is arranged between the live wire port of the power plug and the live wire port of the soldering iron head, the receiving end of the infrared pair sensor and the control end of the relay are connected to a control chip. When the duration of continuously receiving the infrared signal at the receiving end reaches a preset time, the relay can be controlled to open the circuit. When the infrared signal is lost at the receiving end, the timing time is reset, and at the same time, the set state of the relay is restored, and the power supply of the soldering iron head is restored. When not in use, only the soldering iron head needs to be placed back on the soldering iron stand, and when the holding time reaches the preset time, the power supply of the soldering iron head can be automatically controlled to be disconnected, avoiding long-term dry burning damage of the soldering iron head, thereby improving the service life of the soldering iron and saving energy consumption.

[0025] Specifically, as Figure 1 shown, it is a schematic diagram of the module structure of the soldering iron device in the embodiment of the present utility model, which includes a soldering iron stand 20, a soldering iron tip 10, a power plug 01, a power conversion module 30 and a control module. Among them, the transmitting end 51 of the infrared pair sensor is arranged on the soldering iron stand 20, and the receiving end 52 of the infrared pair sensor is arranged on the soldering iron tip 10; the control module includes a relay 42 connected in series between the live wire port of the power plug 01 (L is the live wire port, N is the neutral wire port, and the ground wire is not shown in the figure) and the live wire port of the soldering iron tip 10, and a control chip 41 connected to the receiving end 52 and the control end of the relay 42. The control chip 41 is used to control the relay 42 to open when the duration of continuously receiving the infrared signal at the receiving end 52 reaches the preset time, so that when the soldering iron tip 10 is temporarily not in use and placed back on the soldering iron stand 20, when the duration of non-use reaches the preset time, the soldering iron tip 100 can be automatically powered off to avoid damage to the soldering iron tip due to long-term dry burning.

[0026] The input end of the power conversion module 30 is connected to the power plug, and the output end of the power conversion module 30 is connected to the working power input ends of the infrared pair sensor, the control chip 41 and the relay 42, converting the 220V mains power into the working power required for the operation of each electrical component.

[0027] For the convenience of power management and the design of the power conversion module 30, in this embodiment, the output end of the power conversion module 30 is a 5V power supply output end, which is realized by a power conversion chip that converts 220V AC to 5V DC, providing a unified 5V DC voltage output. Correspondingly, the control chip includes a single-chip microcomputer of the STM32F103C8T6 type, and this type of single-chip microcomputer has a built-in 5V to 3.3V circuit, which can provide its own internal required 3.3V working voltage.

[0028] Among them, the power conversion chip that converts 220V AC to 5V DC can be selected as the AH8652 model chip, and its internal integration includes a current limiting, overcurrent and surge protection circuit, which can ensure the working reliability of the infrared pair sensor, the control chip 41 and the relay 42.

[0029] To improve the fault tolerance of the device and avoid the problem that the soldering iron tip cannot be used normally due to the failure of the control module, in this embodiment, the control module further includes a mode selection switch S1. The common port and the first active port of the mode selection switch S1 are connected in series between the live wire port of the power conversion module 30 and the relay 42. The second active port of the mode selection switch S1 is connected to the live wire port of the soldering iron tip 10. Setting the mode selection switch S1 to the first active port corresponds to the intelligent control mode, and setting the mode selection switch S1 to the second active port corresponds to the normal mode, bypassing the control of the control module and directly supplying power. Thus, when the control module fails and cannot control the relay 42 to switch the set state normally, the device can be placed in the normal mode through the mode selection switch S1 to ensure that the soldering iron tip 10 can be used normally.

[0030] For convenient wiring, in this embodiment, both the power conversion module 30 and the control module are arranged on the soldering iron stand 20. The soldering iron stand 20 generally does not need to be moved. The power plug 01 is arranged at the end of the soldering iron stand 20, and a power supply cable for the soldering iron tip 10 is additionally led out from the soldering iron stand 20. When operating the soldering iron tip 10 for soldering, the soldering iron tip 10 body only needs to drag one cable (including the power supply line, grounding wire of the soldering iron tip, and communication line of the receiving end 52). Moreover, more components are arranged on the soldering iron stand 20, which can be reused as the counterweight of the soldering iron stand 20 to improve the stability of the soldering iron stand 20.

[0031] In this embodiment, the transmitting end 51 of the infrared pair sensor is arranged on the soldering iron stand 20 and can be fixedly held with the soldering iron stand 20 to ensure that the transmitting direction of the infrared signal is fixed, so that the receiving end 52 of the infrared pair sensor arranged on the soldering iron tip 10 can receive the infrared signal only when the soldering iron tip 10 is placed on the soldering iron stand 20, avoiding the problem that the soldering iron tip 10 accidentally triggers the infrared pair sensor during use and causes accidental power-off. Generally, the posture of the soldering iron tip 10 is often adjusted during use. Even if the infrared pair sensor is accidentally triggered, but the triggering time is short, when the posture is adjusted and the infrared pair sensor is no longer triggered, the timing time is reset, and generally there will be no problem of accidental power-off. That is, setting the receiving end of the infrared pair sensor on the soldering iron stand can also meet the reliability requirements of intelligent control, and can be flexibly selected according to actual needs.

[0032] To improve controllability, the normally open contact switch of the relay 42 is connected in series between the live wire port of the power plug 01 and the live wire port of the soldering iron tip 10. Thus, when the control module or the power conversion module fails and cannot normally control the relay 42 to switch its setting state, the soldering iron tip 10 can be set to the power-off state, avoiding the problem that the soldering iron tip is damaged by dry burning when the user is unaware of the intelligent control failure and still uses the intelligent control mode. Moreover, when there is an intelligent control failure, the intelligent control mode corresponds to the power-off mode. The mode selection switch S1 can be used as the working switch of the soldering iron tip 10.

[0033] To improve the practical flexibility, in an alternative embodiment, the power plug 01, the power conversion module 30 and the control module are arranged at the soldering iron tip end. The transmitting end or the receiving end of the infrared pair sensor is led out from the soldering iron tip. When the soldering iron tip is performing soldering operations, the body of the soldering iron tip 10 needs to drag a power cord and a cable connecting the led-out part of the infrared pair sensor. Correspondingly, the led-out part of the infrared pair sensor can be flexibly arranged on various other soldering iron stands, which can reduce the need for a set design of the soldering iron stand. And the cable connecting the led-out part of the infrared pair sensor requires a two-wire cable.

[0034] The electric soldering iron device provided by the present utility model separately arranges the transmitting end and the receiving end of the infrared pair sensor on the soldering iron tip and the soldering iron stand, sets a relay on the live wire access path of the soldering iron tip, and connects the receiving end of the infrared pair sensor and the control end of the relay to the control chip. When the duration of continuously receiving the infrared signal at the receiving end of the infrared pair sensor reaches the preset time, the relay can be controlled to open the circuit. When not in use, only need to put the soldering iron tip back on the soldering iron stand, and when the holding time reaches the preset time, the power supply to the soldering iron tip can be automatically controlled to be disconnected, avoiding long-term dry burning damage of the soldering iron tip, thereby improving the service life of the electric soldering iron and saving energy consumption.

[0035] Among them, the preset time can be specifically set according to specific circumstances, such as one minute, two minutes, etc.

[0036] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0037] The above-described embodiments merely represent several specific implementation manners of the present utility model. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all fall within the protection scope of the present utility model. Therefore, the protection scope of the patent of the present utility model shall be subject to the appended claims.

Claims

1. An electric soldering iron device, characterized in that, It includes a soldering iron tip, a power conversion module, a control module, and an infrared opposed sensor. Among them, the transmitting end and the receiving end of the infrared opposed sensor are separately arranged on the soldering iron stand and the soldering iron tip; the control module includes a relay connected in series between the live wire port of the power conversion module and the live wire port of the soldering iron tip, and a control chip connected to the receiving end and the control end of the relay and controlling the relay to open when the duration of the infrared signal continuously received by the receiving end reaches a preset time; the neutral wire port of the power conversion module is connected to the neutral wire port of the soldering iron tip, and the output end of the power conversion module is connected to the working power input ends of the infrared opposed sensor, the control chip, and the relay.

2. The electric soldering iron device according to claim 1, wherein The control module further includes a mode selection switch. The common port and the first movable port of the mode selection switch are connected in series between the live wire port of the power conversion module and the relay, and the second movable port of the mode selection switch is connected to the live wire port of the soldering iron tip.

3. The soldering iron device according to claim 1, characterized in that, The control chip includes a single-chip microcomputer of the STM32F103C8T6 type.

4. The soldering iron device according to claim 1 or 3, characterized in that, The output end of the power conversion module is a 5V power supply output end.

5. The soldering iron device according to claim 1 or 2, characterized in that, It further includes the soldering iron stand and a power plug. The power plug, the power conversion module, and the control module are all arranged on the soldering iron stand, and the power plug is connected to the input end of the power conversion module.

6. The electric soldering iron device according to claim 1 or 2, characterized in that, The normally open contact switch of the relay is connected in series between the live wire port of the power plug and the live wire port of the soldering iron tip.

7. The soldering iron device according to claim 1, wherein, The transmitting end of the infrared opposed sensor is arranged on the soldering iron stand, and the receiving end of the infrared opposed sensor is arranged on the soldering iron tip.

8. The soldering iron device according to claim 1 or 2, characterized in that, The power conversion module and the control module are both arranged on the soldering iron tip. One of the transmitting end and the receiving end of the infrared opposed sensor is arranged on the soldering iron tip, and the other end is led out of the soldering iron tip through a cable.

9. The soldering iron device according to claim 8, characterized in that, The receiving end of the infrared opposed sensor is arranged on the soldering iron tip.

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