JP3191808U - Temperature detection alarm device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a temperature detection alarm device which is less likely to be damaged or cause an accident, has high alarm reliability, and is excellent in stability and durability. SOLUTION: The main body 1 including one or a combination of a plug 11 and an outlet 12 is included, the main body includes temperature detection alarm circuit boards 110 and 120, and the temperature detection warning circuit board receives heat reaching a deformation temperature. When the temperature detection switch includes a temperature detection switch that generates deformation when it receives it and an alarm member, and the temperature detection switch is deformed by receiving heat that reaches the deformation temperature, the electric circuit of the temperature detection alarm circuit board conducts and the alarm member sends an alarm signal. Occurs. The temperature detection switch consists of a double metal piece in which two metal pieces having different expansion coefficients are bonded together. Further, it is preferable to include functional inspection members 111 and 121 which are connected in parallel to the temperature detection switch and inspect whether or not the temperature detection alarm circuit board is in a normal state. [Selection diagram] Fig. 1

Description

  The present invention comprises a main body comprising either a plug or an outlet or a combination of both, and the temperature detection switch element of the temperature detection alarm circuit board in the main body is deformed by receiving heat reaching the deformation temperature, thereby The present invention relates to a temperature detection alarm device that generates an alarm by conducting an electric circuit of a detection alarm circuit board.

In general, a plug or outlet structure that is commercially available has one end of an electric cord inserted into a wall outlet to obtain power supply, and the other end is inserted into the electric appliance, and power is input to the electric appliance. The electric appliance can be operated. However, when the load flowing through the electric cord becomes excessive, the temperature becomes too high and seizure occurs, which may lead to a serious problem of fire from the electric cord.
For this reason, plugs or outlets with an alarm function are currently provided.

  For example, the “alert structure of plug” described in Patent Document 1 is a warning structure for a plug that generates a warning odor when overheated, and has an insertion groove formed on the plug body. A heat conducting metal seat is installed in the fitting groove, a warning unit is installed in the heat conducting metal seat, and the warning unit is provided with a heat conducting case that can be in close contact with the heat conducting metal seat. A fragrance material is installed, and a lid body in which at least one pore is formed on the upper surface of the heat conducting casing is installed. Accordingly, when the temperature of the plug rises and reaches a temperature at which the fragrance material generates odor, the fragrance material in the warning unit continuously generates odor, and it is possible to prompt the user for confirmation or maintenance.

  Further, Patent Document 2 discloses “a structure of an outlet having an electric quantity display and an overload warning effect (Power socket structure power-consumption indication and over-load alarming effects)”. This is an improvement of what the applicant has proposed as Taiwan Utility Model Publication No. 86209851, in which an electric quantity display meter connected to a circuit is installed in an opening on one side of the outlet body, Provide an appropriate color or warning indication on the scale to classify the safe amount and the dangerous amount, and when the outlet is loaded, the electricity amount display meter can display the current load amount of the outlet, Alternatively, a separate thermistor can be installed to detect the state, drive an alarm circuit to generate an alarm sound, and allow the user to adjust the status of electricity usage at the outlet.

However, the above-described conventional products have the following disadvantages that require improvement.
1. Patent Document 1 describes that the plug in the “plug warning structure” can emit an odor warning when overheated, but the effect as an alarm cannot be achieved immediately by the warning odor alone. There is a risk of damage due to overheating and other accidents.
2. In Patent Document 2, “Outlet structure with electric quantity display and overload warning effect” is an electric quantity display meter installed on one side of the outlet body displaying the current load amount of the outlet. Since the electric quantity display meter is a pointer type, there is a drawback that it is easily damaged or has an error.
3. Patent Document 2 “Outlet Structure with Electricity Display and Overload Warning Effect” can separately provide a thermistor and drive a warning circuit to generate a warning sound, but the thermistor element is easily deteriorated. Therefore, it is not excellent in stability.

Taiwan Utility Model Notice No. M446695 Specification Taiwan Patent Publication No. 4224419 Specification

  The problem to be solved by the present invention is to provide a temperature detection alarm device that solves the above-mentioned problems, is less likely to break or cause an accident, has high alarm reliability, and has excellent stability and durability. It is in.

  The temperature detection alarm device of the present invention includes a main body made of one of a plug and an outlet or a combination of both, and the main body includes a temperature detection alarm circuit board, and the temperature detection alarm circuit board heats to reach a deformation temperature. A temperature detection switch that generates deformation when receiving, and an alarm member, and when the temperature detection switch is deformed by receiving heat reaching the deformation temperature, an electric circuit of the temperature detection alarm circuit board is conducted, The alarm member generates an alarm signal.

The temperature detection switch may be a double metal piece obtained by bonding two metal pieces having different expansion coefficients.
The temperature detection alarm circuit board may be connected in parallel to the temperature detection switch, and may include a function inspection member that inspects whether or not the temperature detection alarm circuit board is in a normal state.
When the main body is an outlet, the outlet may be a table tap or an outlet adapter.
The alarm member is composed of one or a combination of a light emitting device and a speaker.

  The temperature detection alarm circuit board includes a first AC power source, a first temperature detection switch, a function inspection member, a first resistor, a light emitting device as the alarm member, a first diode, a second resistor, a first capacitor, and the alarm member. A first buzzer, wherein one end of the first AC power supply is electrically connected to one end of the first temperature detection switch and one end of the function test member, and the other end of the first temperature detection switch and the function The other end of the inspection member is electrically connected to one end of the first resistor, one end of the first capacitor, and one end of the first buzzer, and the other end of the first resistor is electrically connected to one end of the light emitting device. The other end of the light emitting device is electrically connected to the other end of the first AC power supply and the anode end of the first diode, and the cathode end of the first diode is electrically connected to one end of the second resistor. Connected to the second resistor There is the other end is electrically connected to the other ends of and the first buzzer of the first capacitor.

  The temperature detection alarm circuit board is a second AC power source, a second temperature detection switch, a second inspection member, a second capacitor, a third resistor, a second diode, a third diode, a third capacitor, and a second alarm member. A buzzer, a fourth resistor, and a light emitting diode as the alarm member; one end of the second AC power supply is electrically connected to one end of the second temperature detection switch and one end of the second inspection member; The other end of the AC power supply is electrically connected to one end of the second capacitor and one end of the third resistor, and the other end of the second temperature detection switch and the other end of the second inspection member are connected to the second diode. An anode end and one end of the third capacitor, one end of the second buzzer, and one end of the fourth resistor are electrically connected, and the other end of the fourth resistor is electrically connected to a cathode end of the light emitting diode. The light emission The anode end of the anode is electrically connected to the other end of the second buzzer, the other end of the third capacitor, and the cathode end of the third diode, and the anode end of the third diode is the cathode end of the second diode. In addition, the other end of the second capacitor and the other end of the third resistor may be electrically connected.

The present invention has the following effects.
1. The temperature detection switch on the temperature detection alarm circuit board is a double metal piece, and when the double metal piece receives heat, the metal piece with a larger expansion coefficient bends toward the metal piece with a smaller expansion coefficient and deforms. By making the electric circuit of the temperature detection alarm circuit board conductive, an alarm sound or (and) light is emitted, and the occurrence of a disaster can be avoided.
2. Since the function inspection member is installed and it is inspected whether or not the temperature detection alarm circuit board is in a normal state, the reliability of the alarm can be improved.
3. Since the temperature detection switch uses a double metal piece which is not easily deteriorated, the stability is improved and the service life is extended.
4). Wide range of applications, can be applied to plugs, outlets, table taps, outlet adapters, etc.

It is a perspective view of the temperature detection alarm device which shows Example 1 of this invention. 1 is a circuit diagram of a plug or an outlet according to Embodiment 1 of the present invention. It is a perspective view at the time of the alarm generation of the temperature detection alarm device which shows Example 1 of this invention. It is a top view of the temperature detection alarm device which shows Example 2 of this invention. It is a perspective view of the temperature detection alarm device which shows Example 3 of this invention. It is a circuit diagram of the temperature detection alarm device which shows Example 4 of this invention. It is a perspective view of the temperature detection alarm device which shows Example 5 of this invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 to 3 show a first embodiment of the present invention.
In the first embodiment, the temperature detection alarm device includes a main body 1 including a plug 11 and an outlet 12 respectively connected to both ends of an electric cord as shown in FIG.
The plug 11 includes a temperature detection alarm circuit board 110, a function inspection member 111, an LED lamp 112, and a speaker hole 113.
As shown in FIG. 2, the temperature detection alarm circuit board 110 includes a first AC power supply 1101, a first temperature detection switch 1102, a function inspection member 111, a first resistor 1104, an LED lamp 112, a first diode 1106, and a second resistor. 1107, a first capacitor 1108, and a first buzzer 1109.

  These electrical connection relationships are such that one end of the first AC power supply 1101 is electrically connected to one end of the first temperature detection switch 1102 and one end of the function test member 111, and the other end of the first temperature detection switch 1102 and The other end of the function test member 111 is electrically connected to one end of the first resistor 1104, one end of the first capacitor 1108, and one end of the first buzzer 1109, and the other end of the first resistor 1104 is electrically connected to one end of the LED lamp 112. The other end of the LED lamp 112 is electrically connected to the other end of the first AC power supply 1101 and the anode end of the first diode 1106, and the cathode end of the first diode 1106 is connected to one end of the second resistor 1107. The other end of the second resistor 1107 is electrically connected to the other end of the first capacitor 1108 and the other end of the first buzzer 1109.

As shown in FIG. 1, the outlet 12 also includes a temperature detection alarm circuit board 120, a function inspection member 121, an LED lamp 122, and a speaker hole 123.
As shown in FIG. 2, the temperature detection alarm circuit board 120 includes a first AC power source 1201, a first temperature detection switch 1202, a function inspection member 121, a first resistor 1204, an LED lamp 122, a first diode 1206, and a second resistor. 1207, a first capacitor 1208, and a first buzzer 1209.

  These electrical connection relationships are such that one end of the first AC power supply 1201 is electrically connected to one end of the first temperature detection switch 1202 and one end of the function test member 121, and the other end of the first temperature detection switch 1202 and The other end of the function test member 121 is electrically connected to one end of the first resistor 1204, one end of the first capacitor 1208, and one end of the first buzzer 1209, and the other end of the first resistor 1204 is electrically connected to one end of the LED lamp 122. The other end of the LED lamp 122 is electrically connected to the other end of the first AC power source 1201 and the anode end of the first diode 1206, and the cathode end of the first diode 1206 is connected to one end of the second resistor 1207. The other end of the second resistor 1207 is electrically connected to the other end of the first capacitor 1208 and the other end of the first buzzer 1209.

  In the first embodiment, the value of the first resistors 1104 and 1204 is 120 KΩ, the model number of the first diodes 1106 and 1206 is 1N4007, the value of the second resistors 1107 and 1207 is 6.8 KΩ, and the first capacitor 1108 , 1208 is 100 microfarads. When the temperature does not turn on the electric circuit of the temperature detection alarm circuit boards 110 and 120, the first temperature detection switches 1102 and 1202 are in an OFF state. At this time, the electric circuit of the temperature detection alarm circuit boards 110 and 120 Power consumption is equal to 0 watts. When the temperature reaches the electrical circuit of the temperature detection alarm circuit boards 110 and 120, the first temperature detection switches 1102 and 1202 are turned on. At this time, the electrical circuit of the temperature detection alarm circuit boards 110 and 120 is turned on. The power consumption is less than 12 mA, and the measured value is between about 6 mA and 10 mA.

The first temperature detection switch 1102 of the temperature detection alarm circuit board 110 of the plug 11 and the first temperature detection switch 1202 of the temperature detection alarm circuit board 120 of the outlet 12 are made of double metal pieces. This double metal piece is obtained by bonding two metal pieces having different expansion coefficients.
The principle of operation when a double metal piece receives heat is as follows. Utilizing cold shrinkage and thermal expansion of the volume of the metal, two metal pieces with different expansion coefficients are bonded together, so that a metal piece with a larger expansion coefficient at the time of temperature change becomes a metal piece with a smaller expansion coefficient. Deflection and bending deformation occur.

In the first embodiment, when the double metal piece is bent and deformed, as shown in FIG. 3, the electric circuits of the temperature detection alarm circuit boards 110 and 120 are conducted, the first buzzers 1109 and 1209 emit an alarm sound, and the speaker holes 113 and 123, and the LED lamps 112 and 122 generate warning light so that the plug 11 or the outlet 12 can be prevented from being used again in an overheated state. Is improved. The function inspection members 111 and 121 can further inspect whether or not the temperature detection alarm circuit boards 110 and 120 installed on the plug 11 / outlet 12 are in a normal operating state.
Note that only one of the plug 11 and the outlet 12 can be used as the main body of the temperature detection alarm device. In this case, only the plug 11 or the outlet 12 which is the main body of the temperature detection alarm device issues an alarm by the alarm sound and the alarm light.
The LED lamps 112 and 122 can be replaced with other light emitting devices such as a neon lamp.

FIG. 4 shows a second embodiment of the present invention.
The temperature detection alarm device according to the second embodiment includes a main body including a table tap A.
The table tap A includes a temperature detection alarm circuit board A1, a function inspection member A11, an LED lamp A12, and a speaker hole A13. The structures of the temperature detection alarm circuit board A1, the function inspection member A11, the LED lamp A12, and the speaker hole A13 are the same as the corresponding members in the first embodiment.
The table tap A has a plurality of insertion ports into which plugs of a plurality of electric appliances can be inserted, and when the load current becomes excessive due to a plurality of electric appliances used simultaneously at the time of use, when the temperature rises and reaches the deformation temperature, In the double metal piece of the detection alarm circuit board A1, the metal piece having a larger expansion coefficient is deflected toward the metal piece having a smaller expansion coefficient due to the deformation temperature, and a curved deformation occurs, whereby the electric circuit of the temperature detection alarm circuit board A1. LED lamp A12 lights up or flashes immediately, and an alarm sound is emitted from speaker hole A13, so the user is effectively warned to handle the overload condition immediately, and the temperature is too high It is possible to avoid the occurrence of an irreparable injury caused by the occurrence of an instantaneous electric wire ignition. Further, the function inspection member A11 can inspect whether or not the temperature detection alarm circuit board A1 installed on the table tap A is in a normal operating state.

FIG. 5 shows Embodiment 3 of the present invention.
The embodiment includes a body consisting of a one-to-one outlet adapter C, i.e., an outlet adapter C corresponding to a plug in which the outlet having three insertion holes has two blades. When the outlet adapter C is used, the two blades are inserted into a wall outlet, and an arbitrary electric appliance is connected to the outlet of the outlet adapter C.
Further, the outlet adapter C includes the temperature detection alarm circuit board A1, the function inspection member A11, the LED lamp A12, and the speaker hole A13 similar to the temperature detection alarm circuit board C1, the function inspection member C11, the LED lamp C12, and the speaker of the second embodiment. It has a hole C13.

  When the load current becomes excessive and the temperature rises, the metal piece having a larger expansion coefficient of the double metal piece is deflected toward the metal piece having a smaller expansion coefficient, causing bending deformation, and the electric circuit of the temperature detection alarm circuit board C1. , The warning light is emitted by the LED lamp C12, the alarm sound is emitted from the speaker hole C13, and the outlet adapter C is prevented from being used again in an overheated state, thereby improving the safety in use. be able to. Further, the function inspection member C11 inspects whether or not the temperature detection alarm circuit board C1 is in a normal operating state, that is, whether or not the warning light is emitted from the LED lamp C12 and the alarm sound is emitted from the speaker hole C13. . Thereby, it can be assured that the temperature detection alarm circuit board C1 is normally in a normal working state, and accuracy in use can be improved.

FIG. 6 shows a fourth embodiment of the present invention.
In Example 4, the temperature detection alarm circuit board D provided on the main body includes the second AC power supply D1, the second temperature detection switch D2, the second inspection member D3, the second capacitor D4, the third resistor D5, and the second diode D6. , A third diode D7, a third capacitor D8, a second buzzer D9, a fourth resistor D10, and a light emitting diode D11.

  These electrical connection relationships are such that one end of the second AC power supply D1 is electrically connected to one end of the second temperature detection switch D2 and one end of the second inspection member D3, and the other end of the second AC power supply D1 is the second. One end of the capacitor D4 and one end of the third resistor D5 are electrically connected, and the other end of the second temperature detection switch D2 and the other end of the second inspection member D3 are the anode end of the second diode D6 and the third capacitor D8. , One end of the second buzzer D9, and one end of the fourth resistor D10, the other end of the fourth resistor D10 is electrically connected to the cathode end of the light emitting diode D11, and the anode end of the light emitting diode D11 Are electrically connected to the other end of the second buzzer D9, the other end of the third capacitor D8 and the cathode end of the third diode D7, and the anode end of the third diode D7 is connected to the cathode end of the second diode D6 and the second end of the second diode D6. Capacity D4 and the other end of, and is electrically connected to the other end of the third resistor D5.

The second temperature detection switch D2 is a double metal piece. By utilizing the fact that a metal piece having a larger expansion coefficient bends toward a metal piece having a smaller expansion coefficient and causes a curved deformation, the second temperature detection switch D2 An electric circuit is conducted to generate an alarm sound and / or light.
The value of the second capacitor D4 is 474 joules, the value of the third resistor D5 is 1 MΩ, the model number of the second diode D6 is 1N4749, the model number of the third diode D7 is 1N4007, The value is 3.3 μF, and the value of the fourth resistor D10 is 220Ω.
When the temperature does not cause the electric circuit of the temperature detection alarm circuit board D to be conducted, the second temperature detection switch D2 is in an off state. At this time, the electric power consumption of the electric circuit of the temperature detection alarm circuit board D is 0. Equal to watts. When the temperature reaches the electrical circuit of the temperature detection alarm circuit board D, the third temperature detection switch D2 is turned on. At this time, the power consumption of the electrical circuit of the temperature detection alarm circuit board D is 20 mA. be equivalent to.

FIG. 7 shows a fifth embodiment of the present invention.
In the fifth embodiment, the temperature detection alarm device includes a main body including one-to-multiple outlet adapters E, that is, outlet adapters E corresponding to a plurality of insertion ports in which one plug having two blades has three insertion holes. including.
The outlet adapter E includes a temperature detection alarm circuit board E1, a function inspection member E2, an LED lamp E3, and a speaker hole E4.
If any electrical appliance is connected to the outlet of the outlet adapter E and the load current becomes excessive and the temperature rises, the metal piece having a larger expansion coefficient of the double metal piece provided on the temperature detection alarm circuit board E1 will have an expansion coefficient. Bending toward a small metal piece, the double metal piece is bent and deformed. Then, the electrical circuit of the temperature detection alarm circuit board E1 is conducted, warning light is emitted by the LED lamp E3, an alarm sound is emitted from the speaker hole E4, and the outlet adapter E is used again in an overheated state. It can be avoided and safety in use can be enhanced. The function inspection member E2 can inspect whether or not the temperature detection alarm circuit board E1 is in a normal operating state.

  The above is an explanation of the embodiments of the present invention, and does not limit the scope of rights of the present invention. Any change in numerical values or replacement with a member having an equivalent function is included in the scope of rights of the present invention. .

DESCRIPTION OF SYMBOLS 1 Main body 11 Plug 110 Temperature detection alarm circuit board 1101 1st alternating current power supply 1102 1st temperature detection switch 1104 1st resistance 1106 1st diode 1107 2nd resistance 1108 1st capacitor 1109 1st buzzer 111 Function test member 112 LED lamp 113 Speaker Hole 12 outlet 120 temperature detection alarm circuit board 1201 first AC power supply 1202 first temperature detection switch 1204 first resistor 1206 first diode 1207 second resistor 1208 first capacitor 1209 first buzzer 121 function test member 122 LED lamp 123 speaker hole A Table tap A1 Temperature detection alarm circuit board A11 Function inspection member A12 LED lamp A13 Speaker hole C Outlet adapter C1 Temperature detection alarm circuit board C11 Function inspection member C12 LED lamp C1 3 Speaker hole D Temperature detection alarm circuit board D1 2nd AC power supply D2 2nd temperature detection switch D3 2nd inspection member D4 2nd capacitor D5 3rd resistance D6 2nd diode D7 3rd diode D8 3rd capacitor D9 2nd buzzer D10 4th resistor D11 Light emitting diode E Outlet adapter E1 Temperature detection alarm circuit board E2 Function inspection member E3 LED lamp E4 Speaker hole

Claims (7)

  A temperature detection unit including a main body made of one of a plug and an outlet or a combination of both, wherein the main body includes a temperature detection alarm circuit board, and the temperature detection alarm circuit board generates deformation when it receives heat reaching a deformation temperature. A switch and an alarm member, and when the temperature detection switch is deformed by receiving heat reaching the deformation temperature, an electric circuit of the temperature detection alarm circuit board is conducted, and the alarm member generates an alarm signal. A temperature detection alarm device.   2. The temperature detection alarm device according to claim 1, wherein the temperature detection switch is made of a double metal piece, and the double metal piece is a laminate of two metal pieces having different expansion coefficients.   The temperature detection alarm circuit board is connected in parallel to the temperature detection switch, and includes a function inspection member that inspects whether or not the temperature detection alarm circuit board is in a normal state. Temperature detection alarm device.   The temperature detection alarm device according to claim 1, wherein the main body includes an outlet, and the outlet is either a table tap or an outlet adapter.   The temperature detection alarm device according to claim 1, wherein the alarm member is formed of one of a light emitting device and a speaker, or a combination of both.   The temperature detection alarm circuit board includes a first AC power source, a first temperature detection switch, a function inspection member, a first resistor, a light emitting device as the alarm member, a first diode, a second resistor, a first capacitor, and the alarm member. A first buzzer, wherein one end of the first AC power supply is electrically connected to one end of the first temperature detection switch and one end of the function test member, and the other end of the first temperature detection switch and the function The other end of the inspection member is electrically connected to one end of the first resistor, one end of the first capacitor, and one end of the first buzzer, and the other end of the first resistor is electrically connected to one end of the light emitting device. The other end of the light emitting device is electrically connected to the other end of the first AC power supply and the anode end of the first diode, and the cathode end of the first diode is electrically connected to one end of the second resistor. Connected to the second resistor And the other end is electrically connected to the other end of the other end and the first buzzer of the first capacitor, the temperature sensing alarm device as claimed in claim 1.   The temperature detection alarm circuit board is a second AC power source, a second temperature detection switch, a second inspection member, a second capacitor, a third resistor, a second diode, a third diode, a third capacitor, and a second alarm member. A buzzer, a fourth resistor, and a light emitting diode as the alarm member; one end of the second AC power supply is electrically connected to one end of the second temperature detection switch and one end of the second inspection member; The other end of the AC power supply is electrically connected to one end of the second capacitor and one end of the third resistor, and the other end of the second temperature detection switch and the other end of the second inspection member are connected to the second diode. An anode end and one end of the third capacitor, one end of the second buzzer, and one end of the fourth resistor are electrically connected, and the other end of the fourth resistor is electrically connected to a cathode end of the light emitting diode. The light emission The anode end of the anode is electrically connected to the other end of the second buzzer, the other end of the third capacitor, and the cathode end of the third diode, and the anode end of the third diode is the cathode end of the second diode. The temperature detection alarm device according to claim 1, wherein the temperature detection alarm device is electrically connected to the other end of the second capacitor and the other end of the third resistor.