CN2370450Y - Temperature limiting base for electric iron - Google Patents

Abstract

The utility model relates to a temperature limiting base for an electric soldering iron, which is a soldering iron base and is also a power supply for regulating the voltage, the current, the power and the temperature of the electric soldering iron. The utility model is composed of a casing, a panel, a transformer, a thermosensitive switch, a temperature sensing flake, a supporting frame used for positioning the soldering iron, power supply input and output terminals, a band switch and a normally closed switch which are connected together. The connection relation of the elements is as follows: the transformer is arranged in the casing and is connected with the power supply input and output terminals, and the supporting frame of the soldering iron is arranged at the side surface of the casing. The thermosensitive switch and the temperature sensing flake are arranged at the suitable positions of the supporting frame, and an output terminal of the power supply is connected with a leading wire of the thermosensitive switch. The normally closed switch is arranged on the supporting frame. The band switch, a power switch and an indicating lamp are arranged on the panel. The temperature limiting base has the advantages of simple structure, easy fabrication, temperature control and temperature limitation to the soldering iron, electricity saving, energy saving and long service life of the soldering iron.

Description

The electric soldering iron Temperature limiting base

The utility model is the electric soldering iron Temperature limiting base, belongs to appliance tool.

Usually, can set or adjust the working temperature of a heating element by a temperature-adjusting circuit that contains temperature sensor.This is a kind of constant temperature temperature control method that generally adopts, and this mode can obtain higher degree of accuracy usually.Yet it is because the cost of manufacture height of temperature-adjusting circuit, concerning some do not need the electrical equipment or device of accurate temperature-control performance or function, just more uneconomical especially.For example, to this electric appliances of electric soldering iron, need not all adopt accurate temperature control constant temperature electronic circuit to come temperature control constant temperature to every electric soldering iron.And all go to adopt temperature control constant temperature also can cause cost too high with regard to existing every electric soldering iron, do not have much necessity.People wish that very the electric soldering iron constant temperature Temperature limiting base that a kind of cost is low, the life-span is long is arranged on the contrary.

The purpose of this utility model is exactly in order to overcome and to solve shortcoming and the problem that existing electrical equipment temperature-adjusting circuit cost of manufacture height, uneconomical or existing constant-temperature temperature-control electric soldering iron cost height, life-span are short, do not have much necessity etc., and research, a kind of cost of design is low, the life-span long, have temperature fast response, release time is short, switch temperature electric soldering iron Temperature limiting base comparatively accurately.

The utility model is realized by following technical proposals: the contour structures synoptic diagram of electric soldering iron Temperature limiting base as shown in Figure 1, its basic functional principle synoptic diagram such as Fig. 2, shown in Figure 3.It is an electric iron base, being one again, contain can be by adjusting different electric soldering iron supply voltages, change the working current of electric soldering iron, consumed power, the electric soldering iron power supply of temperature is chewed in weldering, it is by Temperature limiting base shell and panel, power step-down transformer T, bimetallic strip thermoswitch 1 or PTC thermoswitch 10, thermoswitch thermal sensitive piece 2, electric soldering iron is shelved bearing support 3, electric soldering iron 4, power input terminal 5,6, Temperature limiting base power output terminal 7,8, waver 9 or push type normally closed switch 11 connect and compose jointly, its interconnected relationship is: power step-down transformer T is installed in the Temperature limiting base shell, panel is loaded on the shell frame, electric soldering iron is shelved bearing support 3 and is installed on the shell side, bimetallic strip thermoswitch 1 or PTC thermoswitch 10 are loaded on the close electric soldering bit position that electric soldering iron is shelved bearing support 3, thermoswitch thermal sensitive piece 2 is fixed in the proper site near bimetallic strip thermoswitch 1 or PTC thermoswitch 10, so that make the temperature information of impression or recover non-limit temperature with the fastest speed action limit temperature, in this position, the controlled temperature position of the electric soldering iron 4 of controlled temperature must can be pasted and thermoswitch thermal sensitive piece 2, power input terminal 5 and power output terminal 7 are electrically connected mutually with two terminal leads of thermoswitch 1 or 10, with wire connecting power terminal 6,8, power output terminal 7,8 insert the supply socket of Temperature limiting base shell side electric soldering iron 4, waver 9 is loaded on the Temperature limiting base panel, simultaneously, returning apparatus has power switch and pilot lamp etc. on the panel, push type normally closed switch 11 is loaded on the correct position of electric soldering iron bearing support 3, thermoswitch 10 is in parallel with push type normally closed switch 11, and waver 9 or push type normally closed switch 11 are connected with Temperature limiting base power output terminal 7 by lead.The action principle of this electric soldering iron Temperature limiting base is: this electric soldering iron Temperature limiting base is to put to put to suspend or the out-of-work electric soldering iron mounting that charged source "on" position is arranged.Because this limit temperature seat self has the power supply for flatiron heating work, and containing and can play thermal sensing element or the switch that the limit temperature acts on, is to contain the electric soldering iron Temperature limiting base that the electric soldering iron working power also can limit the electric soldering iron heating temp.5,6 is the power input terminal of thermoswitch in the flatiron Temperature limiting base among Fig. 2, input voltage is determined by the consumed power of the rated voltage of electric soldering iron and electric soldering iron or the working temperature requirement of electric soldering iron, the voltage of input can be to exchange, and also can be direct current (this example is for using AC power).Thermoswitch among the figure can be the bimetallic strip temperature switch, also can be PTC themistor, and its technical indicator can be by the temperature of control or the temperature sensing set positions of definite flatiron.Thermoswitch can be one, also can be plural series connection, its technical indicator can be the same or different, and a plurality of series connection can realize that the various temperature restriction is selected or limit is warm more reliably, but can increase the cost of product like this, this situation generally should not considered; Thermoswitch thermal sensitive piece 2 is temperature sensing part of accepting temperature information, and it must directly or indirectly contact temperature control electric soldering iron temperature sensing position.It is irrelevant with the control temperature sensing that the flatiron of electric soldering iron Temperature limiting base is shelved bearing support 3, and it is the web member of thermal sensitive piece 2, and participate in temperature sensing directly: controlled temperature electric soldering iron 4, especially quit work when it and generate heat when shelving, owing to used the utility model Temperature limiting base, its weldering to chew and the radiating tube temperature is controlled all the time and be restricted to a certain suitable temperature.7,8 is electric soldering iron Temperature limiting base power output terminal among the figure, just begins heating work after electric soldering iron 4 inserts 7,8, and weldering is chewed temperature and maintained the best working temperature of using always.When flatiron stops or break-off and be in "on" position and continue heating, at this moment, the electric soldering iron of light condition must make weldering chew temperature and raise to set up a new thermal equilibrium environment.In this state, we wish that electric soldering iron outage stops heating or the few heating of simulation outage, suppress flatiron and continue to heat up, and chew temperature when reducing to the temperature of setting when the flatiron weldering, and we wish that again electric soldering iron switches on automatically, cut off the power supply automatically again until the limit warm spot.Reach above-mentioned state, shelve on the bearing support 3 as long as the electric soldering iron that is in light condition is inserted flatiron of the present utility model, temperature control, limit temperature state are just set up.Table 1 has provided the utility model---the fundamental characteristics of electric soldering iron Temperature limiting base.Table 1:

Rated voltage	The electric soldering iron input voltage	Electric soldering iron working heat equilibrium temperature	The non-loaded thermal equilibrium temperature of electric soldering iron	The Temperature limiting base limit temperature	Limit warm actuation time	Recover the non-limit temperature time
							～220V	(11～13) V (DC or AC)	～430℃	480℃	300℃	～10S	6S

The utility model compared with prior art, have following advantage and beneficial effect: (1) the utility model is a kind of electric soldering iron temperature regulating device with certain precision, and the supply of union flatiron power supply, adjustment and restriction, non-job state flatiron such as shelve at the electric soldering iron Temperature limiting base of function.Because it is simple in structure, make simple and easy, multi-functional, cost is low and have certain meaning; (2) because this Temperature limiting base has the power supply that electric soldering iron uses, power output end contains the power switch (as bimetal release) or the analog power switch (as the PTC thermistor) that can reach temperature control by temperature sensing, when electric soldering iron is in the normal power-up duty, its working temperature generally can be determined by the consumed power of load state and flatiron, in other words, the user can because of doing any work, the workload of unit interval, select any working temperature to do preferably, and then determine flatiron with much power.Yet when flatiron is temporarily stopped using and when being placed on the flatiron seat, is in unloaded electric soldering iron under the situation of equal consumed power, the solder horn temperature is because thermally equilibrated rebuliding and rise to a new temperature rapidly.Therefore, no matter from energy-conservation angle or from prolonging the life-span of flatiron, wish that all electric soldering iron can temperature control.For reason given above, for the electric soldering iron that a kind of consumed power has been determined, can select a kind of temperature sensing switch control on/off, to electric soldering iron temperature control, limit temperature.This temperature sensing switch must possess following characteristics: 1. low-cost, and must be far below the cost of electronic circuit temperature control; 2. the switching characteristic that temperature is had quick response promptly has responsiveness and short release time faster; 3. switch temperature is comparatively accurate; 4. the life-span is long.The utility model possesses These characteristics fully, has satisfied people's hope and requirement; (3) this electric soldering iron Temperature limiting base is an electric iron base, is again to contain to chew the electric soldering iron power supply of temperature by working current, consumed power, the weldering of adjusting different electric soldering iron supply voltage change electric soldering iron.Be one only with the thermoswitch 1 or 10 (as bimetallic strip thermoswitch or PTC thermistor) of or many cheapnesss, to quitting work, the electric soldering iron 4 that is held on the "on" position on the flatiron seat carries out one or more temperature limitation, to reach energy-conservation and to prolong the electric soldering iron well heater and the electric soldering iron Temperature limiting base of the purpose in life-span is chewed in weldering.

Below Figure of description is further specified as follows: Fig. 1 is an electric soldering iron Temperature limiting base appearance structure synoptic diagram, and Fig. 2 and Fig. 3 are its basic functional principle synoptic diagram.Among each figure: 1 is the bimetallic strip thermoswitch, 2 is the thermoswitch thermal sensitive piece, 3 shelve bearing support for electric soldering iron, 4 for being subjected to temperature control electric soldering iron, and 5,6 is power input terminal, and 7,8 is electric soldering iron Temperature limiting base power output terminal, 9 is many retaining waveres, 10 is the PTC thermoswitch, and 11 is the push type normally closed switch, and T is a power step-down transformer.

Embodiment of the present utility model is comparatively simple, its embodiment can be as follows: press shown in the figure (1), Design and Machining manufacturing or buy each critical piece of this electric soldering iron Temperature limiting base, for example, can select metal and adopt frame, shell and the panel of this electric soldering iron of universal machine job operation processing and manufacturing Temperature limiting base for use; Select high heat-proof material for use and adopt universal machine job operation processing and manufacturing electric soldering iron to shelve bearing support 3; Choose thermometal thermoswitch 1 and PTC thermoswitch 10, for example, optional high temperature resistant 200～300 ℃ thermometal thermoswitch, optional switching mode PTC thermistor; Can select for use the sheet metal of suitable thickness to strike out thermoswitch thermal sensitive piece 2 with certain sensitivity, the waver of any model of many retaining waver 9 optional 3-4 shelves, the push type normally closed switch can be according to its residing locations of structures, select the suitable profile and the structure of any model for use, the voltage step-down transformer can form with general transformer winding method coiling, and its primary and secondary turn ratio can be 1: 0.05～and 0.06; (2) press Fig. 1～shown in Figure 3, and by the described annexation of top instructions connection is installed, (as thermoswitch thermal sensitive piece 2 can be fastening with screw, the correct position that welds or be bonded in bimetallic strip thermal switch 1 or PTC thermoswitch 10) just this can implement the utility model preferably.The inventor has produced sample of the present utility model by above-mentioned embodiment, and after a while use, and effect is fine, and is comparatively practical really.

Claims (1)

1, a kind of electric soldering iron Temperature limiting base, it is characterized in that: it is an electric iron base, being one again, contain can be by adjusting different electric soldering iron supply voltages, change the working current of electric soldering iron, consumed power, the electric soldering iron power supply of temperature is chewed in weldering, it is by Temperature limiting base shell and panel, power step-down transformer T, thermometal thermoswitch (1) or PTC thermoswitch (10), thermoswitch thermal sensitive piece (2), electric soldering iron is shelved bearing support (3), electric soldering iron (4), power output terminal (5), (6), Temperature limiting base power output terminal (7), (8), waver (9) or push type normally closed switch (11) connect and compose jointly, its interconnected relationship is: power step-down transformer is installed in the Temperature limiting base shell, panel is loaded on the shell frame, electric soldering iron is shelved bearing support (3) and is installed on the shell side, bimetallic strip thermoswitch (1) or PTC thermoswitch (10) are loaded on the close electric soldering bit position that electric soldering iron is shelved bearing support (3), thermoswitch thermal sensitive piece (2) is fixed in the proper site near bimetallic strip thermoswitch (1) or PTC thermoswitch (10), in this position, the controlled temperature position of the electric soldering iron of controlled temperature (4) must be able to be pasted and thermoswitch thermal sensitive piece (2), power input terminal (5) and power output terminal (7) are electrically connected mutually with two terminal leads of thermoswitch (1) or (10), with wire connecting power terminal (6), (8), power output terminal (7), (8) supply socket of access Temperature limiting base shell side electric soldering iron (4), waver (9) is loaded on the Temperature limiting base panel, simultaneously, returning apparatus has power switch and pilot lamp etc. on the panel, push type normally closed switch (11) is loaded on the correct position of electric soldering iron bearing support (3), thermoswitch (10) is in parallel with push type normally closed switch (11), and waver (9) or push type normally closed switch (11) are connected with Temperature limiting base power output terminal (7) by lead.

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