TWI736449B - Repairing and fixing device of thermocouple and its use method - Google Patents

Abstract

A thermocouple repairing and fixing device and a method of use thereof. The repairing and fixing device includes a portable power supply having a positive electrode and a negative electrode, a timing relay electrically connected to the positive electrode and the negative electrode of the portable power supply, A tact switch electrically connected to the timer relay and used for the user to operate, a holder made of metal material and electrically connected to the negative electrode of the portable power supply, and a heating welding electrically connected to the positive electrode of the portable power supply Device. The timing relay is used to control the current passing time of the portable power supply. Through the heating welder, the at least one thermocouple can be welded at high temperature to produce a repair effect. The at least one thermocouple can also be fixed on a metal plate to achieve a fixing effect and can be used in a high temperature environment.

Description

Repairing and fixing device of thermocouple and its use method

The present invention relates to a repair and fixing device and a method of use thereof, in particular to a repair and fixing device of a thermocouple and a method of use thereof.

A thermocouple is a sensor used to detect temperature. When a thermocouple is used to measure the temperature of a metal, a magnet attached to the metal surface can be used to fix the thermocouple on the metal surface, thereby stably monitoring the surface temperature of the metal. However, the magnetic force of the magnet is easy to demagnetize at high temperature, which limits the use environment of the thermocouple and causes inconvenience. Especially in the harsh environment, it is often difficult to apply the aforementioned fixing method to fix the thermocouple to the metal. In addition, the thermocouple will gradually lose its accuracy after long-term use. At this time, the thermocouple needs to be repaired. However, the repairing device of the thermocouple cannot be integrated with the aforementioned fixing device, which causes inconvenience in carrying and increases the manufacturing cost. There is still room for improvement.

Therefore, the purpose of the present invention is to provide a portable thermocouple repair and fixing device.

Therefore, the thermocouple repairing and fixing device of the present invention is suitable for repairing or fixing at least one thermocouple. The repairing and fixing device includes a portable power supply with a positive pole and a negative pole, a timing relay electrically connected to the positive pole and the negative pole of the portable power supply, and a timing relay electrically connected to the timing relay and used for user operation A tact switch, a holder made of metal material and electrically connected to the negative electrode of the portable power source, and a heating welder electrically connected to the positive electrode of the portable power source. The timer relay is used to control the current passing time of the portable power supply.

Another object of the present invention is to provide a method for using the aforementioned repair and fixing device, which includes an activation step and a welding step. In the starting step, the touch switch is turned on, and the portable power supply starts to supply current within a power supply time through the timing relay. In the welding step, at least one thermocouple is placed on the holder, and the at least one thermocouple is spot welded with the heating welder.

The effect of the present invention is that the at least one thermocouple can be welded at high temperature through the heating welder to produce a repair effect, and the at least one thermocouple can also be fixed to a metal plate to achieve a fixed effect, and it can be used in high temperature environments . The invention integrates the repair and fixing functions of the thermocouple, and adopts a portable design without the need for additional connection to the mains, so it can correspond to field operations with complex environments and lack of mains, and can reduce its own cost and improve versatility.

1: Repair and fixing device of thermocouple

11: Portable power supply

111: positive

112: negative electrode

12: Timing relay

13: Touch switch

14: Fixer

141: Substrate

142: Metal Plate

15: Heating welder

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: Figure 1 is a schematic diagram illustrating an embodiment of the thermocouple repair and fixing device of the present invention; Figure 2 is a process Figures illustrate the method of using the thermocouple repair and fixing device of the present invention; and Figure 3 is a schematic diagram illustrating a state in which a metal plate is provided in a fixture of this embodiment.

1, an embodiment of the thermocouple repairing and fixing device 1 of the present invention includes a portable power supply 11 having a positive electrode 111 and a negative electrode 112, a positive electrode 111 electrically connected to the portable power supply 11 and The timing relay 12 of the negative electrode 112, a tact switch 13 electrically connected to the timing relay 12, a holder 14 made of metal and electrically connected to the negative electrode 112 of the portable power supply 11, and an electrically connected to the portable The heating welder 15 of the positive electrode 111 of the type power supply 11. The tact switch 13 is a returnable push switch, and when the user no longer presses it, it will return to the closed state to ensure safety. The holder 14 includes a substrate 141 connected to the portable power supply 11 and made of metal, and a metal plate 142 detachably fixed on the substrate 141 (see FIG. 3).

Referring to FIGS. 1 and 2, the use method of this embodiment includes a starting step and a welding step. When repairing multiple thermocouples, there is no need to set up on the substrate 141 There is this metal plate 142. In the activation step, the user first presses or pulls down with one hand to turn on the tact switch 13, and then the timer relay 12 causes the portable power supply 11 to start supplying current within a power supply time. The power supply time is preferably between 0.05 and 0.7 seconds, and the user can adjust it according to actual needs. In the welding step, a plurality of thermocouples are overlapped and placed on the substrate 141, and then the heating welder 15 is held with the other hand. At this time, the user continues to press the tact switch 13, and finally the heating The welder 15 welds the thermocouples at high temperature, thereby completing repair and improving the thermoelectric properties. Refer to Table 1 below. Table 1 is a comparison of the values in the calibration furnace between a new thermocouple (ie, brand new) and a thermocouple (ie, repair 1 and repair 2) in the calibration furnace (all units are Celsius).

It can be seen from Table 1 above that the error between the repaired thermocouple in this embodiment and the new thermocouple is extremely small, which can indeed effectively improve the accuracy.

It should be particularly noted that when the thermocouples (or the thermocouples) are to be fixed on the metal surface, the metal plate 142 can be fixed on the substrate 141, and then in the welding step, the thermocouples Place it on the metal plate 142, and then weld and fix the thermocouples on the surface of the metal plate 142 through the heating welder 15 (after fixing, the metal plate 142 can be detached from the base plate 141 for other purposes), So that the thermoelectricity Even accurately measure the surface temperature of the metal plate 142.

The portable power supply 11 does not need to be separately connected to the mains power, so this embodiment can be carried to the site without power lines for use, and has high versatility. The timing relay 12 enables the current to be supplied only during the power supply time, so as to prevent the thermocouples from being melted due to excessive temperature. The tact switch 13 will automatically reset to the off state when the user's hand leaves to avoid danger.

In summary, the present invention integrates repair and refurbishment and fixation functions, and can be carried away from the mains for use, has high convenience and versatility, and can reduce the purchase cost. The design of the timing relay 12 and the touch switch 13 can improve the use Time safety, so it can indeed achieve the purpose of the invention.

However, the above are only examples of the present invention. When the scope of implementation of the present invention cannot be limited by this, all simple equivalent changes and modifications made in accordance with the scope of the patent application of the present invention and the content of the patent specification still belong to This invention patent covers the scope.

1: Repair and fixing device of thermocouple

11: Portable power supply

111: positive

112: negative electrode

12: Timing relay

13: Touch switch

14: Fixer

141: Substrate

15: Heating welder

Claims (8)

A thermocouple repairing and fixing device, suitable for repairing or fixing at least one thermocouple, including: a portable power supply with a positive electrode and a negative electrode; a relay at a certain time is electrically connected to the positive electrode and the portable power supply The negative pole is used to control the current flow time of the portable power supply; a touch switch is electrically connected to the timer relay and used for user operation; a holder is made of metal material and is electrically connected to the portable power supply The negative pole of the portable power supply; and a heating welder, which is electrically connected to the positive pole of the portable power supply. The thermocouple repairing and fixing device according to claim 1, wherein the tactile switch is a returnable push switch. The thermocouple repairing and fixing device according to claim 1, wherein the holder includes a metal substrate connected to the portable power source, and a metal plate detachably fixed on the substrate . A method for using the repair and fixing device of a thermocouple as described in claim 1, comprising: an activation step, preparing a repair and fixing device as described in claim 1, turning on the touch switch, and making the thermocouple available through the timing relay The portable power supply starts to supply current within a power supply time; in a welding step, at least one thermocouple is placed on the holder, and the at least one thermocouple is spot welded with the heating welder. The method of repairing and fixing the thermocouple as described in claim 4, which In the starting step, the holder includes a substrate made of metal connected to the portable power source, and in the welding step, a plurality of thermocouples are overlapped and placed on the substrate, and then the heat is welded The device welds these thermocouples at high temperature. The method for repairing and fixing a thermocouple according to claim 4, wherein, in the activation step, the holder includes a metal substrate connected to the portable power source, and a detachable ground For the metal plate fixed on the substrate, in the welding step, the at least one thermocouple is placed on the metal plate, and the at least one thermocouple is welded through the heating welder to fix the at least one thermocouple On the metal plate. The method for repairing and fixing the thermocouple according to claim 4, wherein, in the starting step, the power supply time is 0.05 seconds to 0.7 seconds. The method for repairing and fixing a thermocouple according to claim 4, wherein, in the starting step, the tact switch is turned on by pressing down, and in the welding step, the tact switch is continuously pressed until the welding is completed. At least one thermocouple.

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