CN218162950U

CN218162950U - Double-indicator-lamp temperature-adjusting coupler without power indication

Info

Publication number: CN218162950U
Application number: CN202222219904.6U
Authority: CN
Inventors: 张云锋; 吴勤丰
Original assignee: Haiyan Pinqian Electric Co ltd
Current assignee: Haiyan Pinqian Electric Co ltd
Priority date: 2022-08-23
Filing date: 2022-08-23
Publication date: 2022-12-27
Anticipated expiration: 2032-08-23

Abstract

The utility model provides a double indicator lamp thermoregulation coupler of no power indication, which comprises an outer shell, temperature controller, adjustment handle and power cord, temperature controller establishes ties there is the heating indicating circuit who is used for instructing the heating state, heating indicating circuit is parallelly connected with the load when coupler inserts the load, and temperature controller is parallelly connected simultaneously has the heat preservation indicating circuit who is used for instructing the heat preservation state, heating indicating circuit includes a heating pilot lamp L1, a light when being used for heating the load, go out the lamp when stopping heating the load, heat preservation indicating circuit includes a heat preservation pilot lamp L2, a light when heating the load, go out the lamp when the circular telegram and to load stop heating. The scheme provides the indicating lamp with two indicating lamps which are respectively used for indicating the heating state and the heat preservation state, the current state can be clearly reflected, and the problem that a user does not know when the lamp is turned off is avoided; the scheme can realize the indication of two states through a simple circuit structure, and has the advantages of low cost and simple structure.

Description

Double-indicator-lamp temperature-adjusting coupler without power indication

Technical Field

The utility model belongs to the technical field of the electrical apparatus adjusts the temperature, especially, relate to a double-pilot-lamp coupler that adjusts the temperature of no power indication.

Background

With the improvement of living standard, people have more and more choices on diet, and in order to bring different diets into each family, new cookers of various types, such as simple chafing dish, frying pan, baking tray, etc., are also appeared. In the operation process of these electrical appliances, in order to reach the optimal food temperature of food, the temperature regulator is matched, and the temperature regulating coupler (temperature regulating wire coupler or connector) is widely used in a great number of electrical appliances due to its convenient operation and high safety.

However, the commonly used plug-in temperature-regulating couplers in the market at present all adopt a single indicator lamp, only one indicator lamp is usually used for indicating the heating state, the heating is stopped when the indicator lamp is turned off, and the heating state is when the indicator lamp is turned on.

In order to solve the technical problem, the applicant previously proposed a double-indicator-lamp-set temperature-regulating coupler, application number 2022215041625, in which the applicant proposed a double-indicator-lamp concept for indicating the power supply and the heating state respectively, and capable of simultaneously and respectively responding to the power-on state and the heating state, thereby facilitating troubleshooting, and simultaneously avoiding the embarrassment that the lamp is turned off and is somehow turned on. However, in the subsequent research process, the applicant considers that the double indicator lamp can also be realized by omitting the power indicator lamp. Two pilot lamps are used for instructing two states in the working process, heating state and heat preservation state, can enough definitely instruct the operating condition of coupler like this, can instruct the on state again, and the troubleshooting of can also being convenient for avoids appearing the awkwardness that the lamp goes out the light and is bright somehow.

SUMMERY OF THE UTILITY MODEL

The utility model discloses in the face of the problem that prior art's coupler can not definitely react operating condition, provide a double-pilot-lamp coupler that adjusts temperature of no power indication, this double-pilot-lamp coupler that adjusts temperature of no power indication has two pilot lamps, can be used for instructing heating state and heat preservation state respectively, makes the user definitely know current state and whether normally work, convenience of customers uses.

In order to achieve the above purpose, the utility model adopts the following technical proposal:

a double-indicator-lamp temperature-adjusting coupler without power indication comprises a shell, a temperature controller, an adjusting handle and a power line, wherein the temperature controller is connected with a heating indicating circuit in series for indicating a heating state, the heating indicating circuit is connected with a load in parallel when the coupler is inserted into the load, the temperature controller is connected with a heat-preservation indicating circuit in parallel for indicating a heat-preservation state, the heating indicating circuit comprises a heating indicating lamp L1 for lighting when the coupler is used for heating the load and lighting when the coupler is used for stopping heating the load, and the heat-preservation indicating circuit comprises a heat-preservation indicating lamp L2 for lighting when the coupler is used for heating the load and lighting when the coupler is powered on and stops heating the load.

In the above mentioned double-indicator light temperature-regulating coupler without power indication, a temperature fuse FU is connected in series with a circuit main line of the temperature-regulating coupler.

In the dual-indicator light temperature-regulating coupler without power indication, the temperature controller comprises a temperature sensing component and a temperature control switch controlled to be switched on or switched off by the temperature sensing component, and two ends of the temperature control switch are respectively connected in parallel with the heat preservation indicating circuit.

In the double-indicator-lamp temperature-regulating coupler without power indication, the temperature-control switch comprises a movable contact and a fixed contact, the fixed contact and the movable contact are respectively connected to two ends of the heat-preservation indicating circuit, and the temperature-sensing component drives the movable contact to act according to the sensed temperature so as to close or open the temperature-control switch according to the sensed temperature.

In the above dual-indicator temperature-regulating coupler without power indication, the temperature-sensing assembly includes a temperature-sensing tube, an expansion wire disposed at the end of the temperature-sensing tube and used for expansion with heat and contraction with cold according to the heat transferred by the temperature-sensing tube, and a driving strip having one end connected to the expansion wire, wherein the end of the driving strip away from the expansion wire has a supporting point generating thrust outwards due to the deformation of the expansion wire, one side of the supporting point away from the driving strip has a spring plate acting under the thrust of the supporting point, and the movable contact is disposed at the lower end of the spring plate to control the movable contact to contact with or away from the stationary contact according to the induction temperature through the principle of expansion with cold, i.e., to control the temperature-sensing switch to be opened or closed.

In the double-indicator light temperature-regulating coupler without power indication, the regulating handle is used for regulating the tension of the elastic sheet, and different set temperatures are regulated by regulating the tension of the elastic sheet.

In the above dual indicator light temperature adjusting coupler without power indication, the heating indication circuit further includes a current limiting resistor R1 connected in series with the heating indicator light L1;

in the above mentioned double-indicator light temperature-regulating coupler without power indication, the heat-preservation indicating circuit further includes a current-limiting resistor R2 connected in series with the heat-preservation indicator light L2.

In the above mentioned dual indicator light temperature adjusting coupler without power indication, the heating indicator light L1 and the heat preservation indicator light L2 have different colors.

In the above-mentioned double-indicator light thermoregulation coupler without power indication, the heating indicator light L1 is a red indicator light; the heat preservation indicator light L2 is a green indicator light.

The utility model has the advantages that: the utility model provides a have two and be used for instructing heating state and heat preservation state's pilot lamp respectively, can make clear response current state, avoid appearing the trouble of going out the light and not knowing the problem of user; the scheme can realize the indication of two states through a simple circuit structure, and has the advantages of low cost and simple structure; in addition, this scheme adopts mechanical system to realize the control by temperature change with the help of expend with heat and contract with cold principle, has the action reliably, long service life, simple structure and compactness, low price etc. and has a bit.

Drawings

FIG. 1 is a schematic circuit diagram of a dual indicator light trim coupler without power indication;

FIG. 2 is a cross-sectional view of a temperature controller in a dual indicator light thermostatic coupler without power indication;

FIG. 3 is a cross-sectional view of a temperature controller in a dual indicator light thermostatic coupler with no power indication in another embodiment;

fig. 4 is a schematic structural diagram of a double-indicator-lamp temperature-regulating coupler without power indication.

Reference numerals: a temperature controller 1; a temperature sensing tube 11; an expansion wire 12; a drive strap 13; a support point 14; a spring plate 15; an upper spring plate 151; a lower spring plate 152; a movable contact 16; a stationary contact 17; a heating indication circuit 2; a heat preservation indicating circuit 3; a load 4; a socket switch 5; an adjusting handle 6; a power supply line 7; and an insulating member 8.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Similar to the prior art, the dual-indicator light temperature-regulating coupler without power indication provided in this embodiment also includes a housing, a temperature controller 1, an adjusting handle 6, and a power line 7, and the like.

In particular, the embodiment provides two indicator lights at the same time, one is used for indicating the heating state, and the other is used for indicating the heat preservation state, and the specific structure is as follows:

as shown in fig. 1, the power cord 7 is turned on and off by the outlet switch 5. The temperature controller 1 is connected in series with a heating indicating circuit 2 for indicating a heating state, the heating indicating circuit 2 is connected in parallel with a load 4 when a load terminal of the coupler is inserted into the load 4, and the temperature controller 1 is connected in parallel with a heat preservation indicating circuit 3 for indicating a heat preservation state.

The heating indicating circuit 2 comprises a heating indicating lamp L1 and a current limiting resistor R1 connected with the heating indicating lamp L1 in series, and is used for lighting when heating the load 4 and turning off the lamp when stopping heating the load 4.

The heat preservation indicating circuit 3 comprises a heat preservation indicating lamp L2 and a current limiting resistor R2 connected with the heat preservation indicating lamp L2 in series and used for turning off the lamp when the load 4 is heated and turning on the lamp when the load 4 is electrified and stops heating.

Meanwhile, a circuit main line of the temperature-regulating coupler is connected with a temperature fuse FU in series.

The working principle is as follows: under the operating condition, when the circuit temperature surpassed the temperature that bears of temperature fuse FU, the circuit disconnection can avoid the circuit to unusual to lead to the conflagration to take place. When the temperature controller 1 is switched on, the load electrical appliance 4 is heated, at the moment, the current mainly flows to the temperature controller 1, the value of the current passed by the heat preservation indicator lamp L2 is smaller than the starting current of the heat preservation indicator lamp L2, therefore, the heat preservation indicator lamp L2 is not lighted at the moment, the heating indicator lamp L1 is lighted, the temperature at the temperature controller 1 is usually several milliohms, the resistance value of the resistor R2 can be selected by the technical personnel in the field according to the needs, such as 60K ohms, so that when the temperature controller 1 is switched on, the current passing through the heat preservation indicator lamp L2 is smaller than the starting current of the heat preservation indicator lamp L2, the specific resistance value of the R2 is not limited, and only the requirements are met. When the electric appliance reaches a set temperature value, the temperature controller 1 is disconnected, the current flows away from the heat preservation indicator lamp L2, the heat preservation indicator lamp L2 is on, and the current value passing through the heating indicator lamp L1 is smaller than the starting current of the heating indicator lamp L1, so that the heating indicator lamp L1 is not on. It should be understood by those skilled in the art that the resistance R of the load 4 is usually several tens of ohms when the temperature controller 1 is turned off, and the resistance R of the load 4 is usually about 100 ohms when the temperature controller 1 is turned on, and those skilled in the art can select the resistance of the resistor R1 according to specific situations, such as 60K ohms, so that the current flowing through L1 is greater than the ignition current when the temperature controller 1 is turned on, and the current flowing through the heating indicator lamp L1 is less than the ignition current when the temperature controller 1 is turned off, and the specific resistance of R1 is not limited to this, and only the aforementioned requirements need to be satisfied. Therefore, this scheme is under heating operating condition, and heating pilot lamp L1 is bright, and under the stop heating operating condition, heat preservation pilot lamp L2 is bright, need not power indicator, and direct with heating pilot lamp L1 and heat preservation pilot lamp L2 just can acquire on-state and operating condition. The heat indicator light L1 and the heat preservation indicator light L2 are preferably different in color, and for example, the heat indicator light L1 is a red indicator light; the heat preservation indicator light L2 is a green indicator light, or vice versa, or is designed to be other colors according to needs, and is not limited herein.

Further, the temperature controller 1 includes a temperature sensing component and a temperature control switch controlled to be opened or closed by the temperature sensing component, and two ends of the temperature control switch are respectively connected in parallel with the heat preservation indicating circuit 3. When the temperature controller is put into use, the specific structures of the temperature controller 1, the shell, the adjusting handle 6 and the like can be selected by a person skilled in the art, and are not limited specifically, and the person skilled in the art can select the existing structure or can develop a new structure by himself.

In one embodiment, as shown in fig. 2, the temperature controlled switch includes a movable contact 16 and a stationary contact 17, and the stationary contact 17 and the movable contact 16 are connected to both ends of the temperature keeping indication circuit 3, respectively. The temperature sensing assembly comprises a temperature sensing tube 11, an expansion wire 12 which is arranged at the tail end of the temperature sensing tube 11 and used for expanding with heat and contracting with cold according to heat transferred by the temperature sensing tube 11, and a driving sheet 13 of which one end is connected with the expansion wire 12, wherein one end of the driving sheet 13, which is far away from the expansion wire 12, is provided with a supporting point 14 which can generate thrust outwards due to deformation of the expansion wire 12 (or deformation difference generated by heating of the expansion wire 12 and the driving sheet 13), an elastic sheet 15 which is used for being pushed to act by the supporting point 14 is arranged on one side, which is far away from the driving sheet 13, of the supporting point 14, a movable contact 16 is arranged at a position, which is a distance away from the supporting point 14, of the elastic sheet 15, the temperature control switch is opened or closed according to the induction temperature and contraction principle through the thermal expansion and contraction principle, when the temperature rises, a bimetal formed by the expansion wire 12 and the driving sheet 13 deforms, the supporting point 14 has an upward thrust, one end of the elastic sheet 15 is pushed upwards, and when the thrust is large enough (namely, the temperature is high enough), the movable contact point 16 is pushed away from the stationary contact 17, so as to realize the disconnection of a circuit, and the movable contact 17 is closed.

Specifically, the adjusting handle 6 comprises a temperature adjusting knob embedded on the shell, and the temperature adjusting knob is provided with a temperature gear mark. In this embodiment, as shown in fig. 2, the adjusting handle 6 acts on the elastic sheet 15 to adjust the tension of the elastic sheet 15. For example, the insulating column at the lower end of the adjusting handle 6 is extended and contracted by a screw, the insulating column acts on the elastic sheet 15, the elastic sheet 15 is composed of an upper elastic sheet 151 and a lower elastic sheet 152, one end of which is movably hinged with each other (the left side of the figure is hinged with each other), the insulating column directly acts on the upper elastic sheet 151 and indirectly acts on the lower elastic sheet 152, the end, far away from the hinge, of the upper elastic sheet 151 is fixed at the insulating part 8, the movable contact 16 is positioned at the end, far away from the hinge, of the lower elastic sheet 152, when the adjusting handle 6 rotates in one direction, the insulating column is pressed, the right side part (far away from the hinge) is fixed, so that the left side part (far away from the virtual coil A in the figure) is pressed, the tension of the lower elastic sheet 152 is reduced, the movable contact is subjected to a force far away from the fixed contact, at the moment, the lower temperature can separate the two contacts, when the adjusting handle 6 rotates in the other direction, the insulating column is contracted, the upper elastic sheet 151 is rebounded, so that the left side part (far away from the virtual coil A in the figure) is increased, the tension of the lower elastic sheet 152 is reduced, the movable contact 16 is subjected to a force close to separate the fixed contact 17, thereby separating the temperature of the fixed contact, and the temperature of the adjusting handle 15 is set. In practical application, the set temperature can be adjusted by the adjusting handle by other means which are currently available or not proposed at present. As shown in fig. 3, the elastic sheet 15 is a single elastic sheet, the insulating column acts on the terminal plate where the fixed contact 17 is located, when the temperature sensing assembly does not act, the movable contact 16 and the fixed contact 17 are always in contact with each other due to the elastic force, when the adjusting handle 6 rotates in one direction, the insulating column pushes the fixed contact 17 downwards, the movable contact moves downwards, one end of the elastic sheet 15 is closer to the supporting point 14, and at the moment, the movable contact 16 can be pushed away from the fixed contact 17 only by small deformation; when the adjusting handle 6 rotates in the other direction, the fixed contact 17 moves upwards, the movable contact moves upwards, one end of the elastic sheet 15 is farther away from the supporting point 14, and a larger deformation is needed to contact the elastic sheet 15 and push the movable contact 16 to leave the fixed contact 17.

As shown in fig. 4, two indicator lights are also embedded in the upper housing, respectively. The temperature adjusting coupler is provided with an indicating structure for indicating the temperature adjusting gear of the current temperature adjusting knob, if an indicating arrow can be arranged on the shell, the indicating arrow is preferably arranged on the upper shell in the form of an arrow groove, and correspondingly, the temperature adjusting knob is provided with a temperature gear mark. Also can be located the tempering knob circumference outside on the shell and set up temperature gear sign, have on the tempering knob and instruct structures such as arrow or instruction bump in order to instruct current temperature, instruct the structure certainly and also can be other structural style, specifically not repeated here. When the temperature-adjusting knob is put into use, a user adjusts the temperature-adjusting knob according to needs, judges the current set temperature gear according to the temperature gear identification indicated by the indication arrow, and simultaneously can respectively acquire the working state and the power-on state according to the heating indicator lamp and the temperature indicator lamp.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the temperature controller 1 is used more herein; a temperature sensing tube 11; an expansion wire 12; a drive strap 13; the support points 14; a spring plate 15; a movable contact 16; a stationary contact 17; a heating indication circuit 2; a heat preservation indicating circuit 3; a load 4; a socket switch 5; an adjusting handle 6; power line 7, etc., but does not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. The utility model provides a two pilot lamps thermoregulation couplers that do not have power instruction, including shell, temperature controller (1), regulation handle (6) and power cord (7), characterized by, temperature controller (1) establish ties and be used for instructing the heating indicating circuit (2) of heating state, heating indicating circuit (2) and load (4) are parallelly connected when the coupler inserts load (4), and temperature controller (1) simultaneously parallelly connected have the heat preservation indicating circuit (3) that are used for instructing the heat preservation state, heating indicating circuit (2) include a heating pilot lamp L1, be used for brightening when heating load (4), go out the light when stopping heating load (4), heat preservation indicating circuit (3) include a heat preservation pilot lamp L2, be used for brightening when heating load (4), light when circular telegram and stop heating load (4).

2. The double-indicator light temperature-regulating coupler without power indication of claim 1, wherein a temperature fuse FU is connected in series with a circuit main line of the temperature-regulating coupler.

3. The double-indicator light temperature-regulating coupler without power indication according to claim 1, wherein the temperature controller (1) comprises a temperature sensing component and a temperature-controlled switch controlled by the temperature sensing component to be opened or closed, and two ends of the temperature-controlled switch are respectively connected in parallel with the heat preservation indicating circuit (3).

4. The double-indicator light temperature-regulating coupler without power indication according to claim 3, wherein the temperature-controlled switch comprises a movable contact (16) and a fixed contact (17), the fixed contact (17) and the movable contact (16) are respectively connected to two ends of the heat preservation indicating circuit (3), and the temperature sensing component drives the movable contact (16) to act according to the sensed temperature so as to close or open the temperature-controlled switch according to the sensed temperature.

5. The double-indicator light temperature-regulating coupler without power indication according to claim 4, wherein the temperature sensing assembly comprises a temperature sensing tube (11), an expansion wire (12) arranged at the end of the temperature sensing tube (11) and used for expanding with heat and contracting with cold according to the heat transferred by the temperature sensing tube (11), and a driving sheet (13) with one end connected to the expansion wire (12), one end of the driving sheet (13) far away from the expansion wire (12) is provided with a supporting point (14) which generates thrust outwards due to the deformation of the expansion wire (12), one side of the supporting point (14) far away from the driving sheet (13) is provided with an elastic sheet (15) which is used for acting under the thrust of the supporting point (14), and the moving contact (16) is arranged at the lower end of the elastic sheet (15) so as to control the moving contact or the moving contact (16) far away from the static contact (17) according to the induction temperature through the principle of expanding with cold.

6. The double-indicator light temperature-regulating coupler without power indication of claim 5, wherein the adjusting handle (6) is used for adjusting the tension of the elastic sheet (15).

7. The dual indicator light temperature regulating coupler without power indication according to any of claims 1-6, wherein the heating indicator circuit (2) further comprises a current limiting resistor R1 connected in series with the heating indicator light L1.

8. The double-indicator-lamp temperature-regulating coupler without power indication according to claim 7, wherein the temperature-keeping indication circuit (3) further comprises a current-limiting resistor R2 connected in series with the temperature-keeping indicator lamp L2.

9. The dual indicator light temperature regulating coupler of no power indication of claim 8, wherein the heating indicator light L1 and the heat preservation indicator light L2 have different colors.

10. The double-indicator light temperature-regulating coupler without power indication of claim 9, wherein the heating indicator light L1 is a red indicator light; the heat preservation indicator light L2 is a green indicator light.