Self-generating thermal detector

Abstract

The utility model relates to a self-generating thermal detector, which comprises a hollow protective cap, a temperature-sensing ignition wire, a device shell, electrolyte, a positive lead, a negative lead, a current output end, a positive terminal and a negative terminal, the temperature-sensing ignition wire extends into the hollow protective cap, and the hollow protective cap is screwed on an external thread of the device shell. The positive lead and the negative lead are installed on the electrolyte and are connected with the positive terminal and the negative terminal, the current output end is screwed on the internal thread of the device shell, the temperature sensing ignition line of the hollow protective cap is ignited, the temperature of the electrolyte in the device shell is caused to rise abnormally, the electrolyte is fused, and the current output end is connected with the positive terminal and the negative terminal. And the current is output from the current output end through the positive lead, the positive terminal, the negative lead and the negative terminal, an external power supply is not needed, the temperature is automatically detected, a current signal is sent out, and the battery is suitable for fire detection and fire extinguishing in special places without electricity.

Description

Technical Field

[0001] The utility model relates to a detector, in particular to a self-generating temperature-sensing detector. Background Art

[0002] Traditional temperature detectors use temperature-sensitive thermistors to detect changes in external temperature and thus detect the occurrence of fire. When a fire occurs, a large amount of heat is released, causing the ambient temperature to rise rapidly. The physical properties of the thermistor will change with the change in ambient temperature. The temperature detector converts the change in thermistor into a change in an electrical signal through circuit design. The detector monitors and processes the electrical signal and determines whether to transmit the fire alarm information to the controller based on its status. The limitation of this temperature detector is that it requires continuous power supply to ensure that the temperature detector works effectively. Utility Model Content

[0003] In view of the problems existing in the above-mentioned prior art, the utility model provides a self-generating temperature sensing detector, which does not require an external power supply, detects temperature and sends out a current signal by itself, and is suitable for fire detection and fire extinguishing in special places without electricity.

[0004] In order to achieve the above-mentioned purpose, the utility model is a self-generating temperature-sensing detector, comprising: a hollow protective cap, a temperature-sensing ignition wire, a device shell, an electrolyte, a positive lead, a negative lead, a current output terminal, a positive terminal and a negative terminal. A plurality of elliptical hollow grooves are opened on the surface of the hollow protective cap, one end of the cylindrical temperature-sensing ignition wire is fixedly installed inside the device shell and connected with the electrolyte, and the other end of the temperature-sensing ignition wire extends to the inside of the hollow protective cap, one end of the surface of the hollow protective cap has an internal thread, and the surface of the device shell is provided with an internal thread. One end has an external thread, and the hollow protective cap is screwed on the external thread of the device shell through the internal thread. The cylindrical electrolyte is installed inside the device shell, and the positive lead and the negative lead are fixedly installed on the electrolyte. One end of the current output end is installed with an external thread, and the mounting surface of the other end of the current output end has an internal thread. The positive terminal and the negative terminal are installed in the hollow current output end, and the positive lead and the negative lead are respectively connected to the positive terminal and the negative terminal. The mounting surface of the other end of the current output end has an external thread that is screwed on the internal thread of the device shell.

[0005] Preferably, one end of the temperature-sensitive ignition wire is coiled on the electrolyte.

[0006] Preferably, the positive electrode lead and the negative electrode lead are respectively composed of a circular copper ring and a copper sheet, the copper ring and the copper sheet are integrally formed, and the copper ring is fixed on the electrolyte.

[0007] Preferably, the positions of the plurality of elliptical hollow grooves on the surface of the hollow protective cap are symmetrical.

[0008] Through the above scheme, the utility model has at least the following advantages: the sensitivity and detection accuracy of the self-generating temperature sensing detector of the utility model are better than those of general sensors. The detector has the characteristics of non-corrosion, fire resistance, water resistance and long service life. Taking into account the cost of the sensor itself and the subsequent maintenance costs, the operating cost can be greatly reduced. It does not require an external power supply, can detect temperature and send out current signals by itself, is small in size, is not limited by the use space, is easy to install, and is suitable for fire detection and fire extinguishing in special places without electricity. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a three-dimensional schematic diagram of a self-generating temperature sensing detector;

[0010] Figure 2 This is the structural breakdown diagram of the self-generating temperature detector;

[0011] In the figure: 1 is a hollow protective cap, 2 is a temperature-sensitive ignition wire, 3 is a device housing, 4 is an electrolyte, 5 is a positive electrode lead, 6 is a negative electrode lead, 7 is a current output terminal, 8 is a positive terminal, and 9 is a negative terminal. DETAILED DESCRIPTION

[0012] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0013] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, in the description of this specification, the terms "first" and "second" are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0014] The following describes a self-generating temperature sensing detector according to an embodiment of the utility model with reference to the accompanying drawings.

[0015] like Figure 1 and Figure 2As shown, a self-generating temperature detector, the shell of the detector is composed of a hollow protective cap 1, a device shell 3 and a current output terminal 7 connected by threads, with a small size and simple installation; the authorization announcement number is CN219736583U, and the patent name is a utility model patent for a mechanical temperature detector. The temperature detector is installed by a flange and a temperature-sensitive glass ball, but the structure is large in size and requires a large installation area. It needs to be fixed by locking during installation, and other parts are also needed to assist in achieving the effect. The operation is cumbersome, the structure is complex, and it cannot be reused.

[0016] In addition, the authorization announcement number is CN219736583U, and the patent name is the utility model patent of mechanical temperature sensor. The diverter also needs to use a protective cap to protect the temperature-sensitive glass ball to prevent the temperature-sensitive glass ball from being hit and broken by foreign objects during transportation and installation. In this self-generating temperature sensor, the cylindrical temperature-sensitive ignition wire 2 and the electrolyte 4 are installed inside the hollow protective cap 1 and the device housing 3. The hollow protective cap 1 and the device housing 3 can protect the temperature-sensitive ignition wire 2 and the electrolyte 4 from external damage. There is no need to use any protective tools for protection, and the stability is better. The hollow protective cap 1 and the device housing 3 are connected by threads, which is also convenient for disassembly.

[0017] One end of the temperature-sensitive ignition wire 2 in the self-generating temperature-sensitive detector is coiled on the electrolyte 4, which can make the contact tighter and more firm. The other end of the temperature-sensitive ignition wire 2 extends to the inside of the hollow protective cap 1. When in use, according to the actual situation, if the temperature is found to be too high, the temperature-sensitive ignition wire 2 will ignite without external power supply.

[0018] The cylindrical electrolyte 4 is installed inside the device housing 3, and the positive lead 5 and the negative lead 6 are fixedly installed on the electrolyte 4. The positive lead 5 and the negative lead 6 are respectively composed of a circular copper ring and a copper sheet, and the copper ring and the copper sheet are integrally formed. The copper ring is fixed on the electrolyte 4. One end of the current output terminal 7 is provided with an external thread, and the mounting surface of the other end of the current output terminal 7 has an internal thread. The positive terminal 8 and the negative terminal 9 are installed in the hollow current output terminal 7. The positive lead 5 and the negative lead 6 are respectively connected to the positive terminal 8 and the negative terminal 9. This connection method is more stable, and there will be no virtual connection. It is safer to use and prevents the occurrence of short circuit or open circuit.

[0019] When a fire occurs or the temperature rises abnormally, the temperature-sensitive ignition wire 2 of the hollow protective cap 1 is ignited, causing the temperature of the electrolyte 4 in the device housing 3 to rise abnormally, resulting in the melting of the electrolyte 4, which causes a charge imbalance inside the battery. The ions in the electrolyte 4 will migrate with the temperature change, thereby generating current, which is output from the current output end through the positive lead 5 and the positive terminal 8, the negative lead 6 and the negative terminal 9, and is used to provide an alarm signal or start other linkage devices.

[0020] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0021] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. 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 may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0023] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A self-generating temperature detector, include: A hollow protective cap (1), a temperature-sensitive ignition wire (2), a device housing (3), an electrolyte (4), a positive electrode lead (5), a negative electrode lead (6), a current output terminal (7), a positive terminal (8) and a negative terminal (9), characterized in that a plurality of elliptical hollow grooves are opened on the surface of the hollow protective cap (1), one end of the cylindrical temperature-sensitive ignition wire (2) is fixedly installed inside the device housing (3) and connected to the electrolyte (4), and the other end of the temperature-sensitive ignition wire (2) extends into the hollow protective cap (1), one end of the surface of the hollow protective cap (1) has an internal thread, one end of the surface of the device housing (3) has an external thread, and the hollow protective cap ( 1) is screwed onto the external thread of the device housing (3) through an internal thread, a cylindrical electrolyte (4) is installed inside the device housing (3), a positive lead (5) and a negative lead (6) are fixedly installed on the electrolyte (4), one end of the current output terminal (7) is installed with an external thread, the other end of the current output terminal (7) has an internal thread on the mounting surface, the positive terminal (8) and the negative terminal (9) are installed in the hollow current output terminal (7), the positive lead (5) and the negative lead (6) are respectively connected to the positive terminal (8) and the negative terminal (9) correspondingly, and the other end of the current output terminal (7) has an external thread on the mounting surface that is screwed onto the internal thread of the device housing (3).

2. A self-generating temperature detector according to claim 1, It is characterized in that One end of the temperature-sensitive ignition wire (2) is coiled on the electrolyte (4).

3. A self-generating temperature detector according to claim 1, It is characterized in that The positive electrode lead (5) and the negative electrode lead (6) are respectively composed of a circular copper ring and a copper sheet, the copper ring and the copper sheet are integrally formed, and the copper ring is fixed on the electrolyte (4).

4. A self-generating temperature detector according to claim 1, It is characterized in that The positions of the plurality of elliptical hollow grooves on the surface of the hollow protective cap (1) are symmetrical.

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