Thermal overload detector

Abstract

The utility model relates to a thermal overload detector which comprises an air suction fan, a gas sensor, a smoke sensor and a temperature and humidity sensor. The first end of the air duct directly faces the air outlet end of the air suction fan, and the second end of the air duct discharges air to the outside. The air suction fan sucks outside air and blows the outside air to the gas sensor, the smoke sensor and the temperature and humidity sensor through the air duct so as to carry out gas content detection, smoke concentration detection, temperature and humidity detection and the like; a display assembly, a wire holder and a wireless communication module are further arranged in the shell, the position, right facing the display assembly, of the shell is transparent, display content can be checked conveniently, and a first through hole right facing the wire holder is formed in the shell so that a flat cable can be inserted into the first through hole; furthermore, a wireless communication module is arranged to realize wireless communication, so that different use requirements are met; therefore, the smoke concentration and the gas content in the surrounding air are actively analyzed, temperature and humidity detection is carried out, and the device is suitable for being used in a relatively closed place, is small in size and is more suitable for being used in a small-space place.

Description

Technical Field

[0001] The utility model relates to the technical field of active air component detection, and more specifically to a thermal overload detector. Background Art

[0002] Traditional point-type smoke / heat detectors have low sensitivity for early fire detection and are not suitable for early warning in small, relatively enclosed spaces. In addition, they are affected by the slow flow of surrounding air and only start to sound the alarm after a fire occurs, which can no longer meet people's usage needs. Utility Model Content

[0003] The technical problem to be solved by the utility model is that, in view of the above-mentioned defects of the prior art, a thermal overload detector is provided which actively analyzes the smoke concentration and gas content in the surrounding air and performs temperature and humidity detection, and is suitable for use in small spaces and relatively closed places.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A thermal overload detector is constructed, comprising an air intake fan, a gas sensor, a smoke sensor and a temperature and humidity sensor; wherein the air intake fan draws air from the outside and blows it toward the gas sensor, the smoke sensor and the temperature and humidity sensor through an air duct;

[0006] The first end of the air duct faces the air outlet end of the air suction fan and the second end discharges air to the outside;

[0007] The air intake fan, the gas sensor, the smoke sensor and the temperature and humidity sensor are all arranged in the housing;

[0008] A display component, a wiring socket and a wireless communication module are also arranged in the shell. The shell is transparent at a position facing the display component. A first through hole facing the wiring socket is arranged on the shell.

[0009] In the thermal overload detector of the utility model, the gas sensor, the smoke sensor and the temperature and humidity sensor are all fixedly connected to the bottom surface of the main circuit board;

[0010] The main circuit board is fixedly connected to the bottom shell, and the bottom shell is provided with an air duct, and the bottom surface of the main circuit board faces the air duct; the gas sensor, the smoke sensor and the temperature and humidity sensor are all located in the air duct.

[0011] In the thermal overload detector of the utility model, the bottom surface of the main circuit board is sealed to the air duct.

[0012] In the thermal overload detector of the utility model, the wiring socket and the wireless communication module are both fixedly connected to the main circuit board.

[0013] The thermal overload detector of the utility model, wherein a cover plate is fixedly connected to the side of the bottom shell;

[0014] The air inlet end of the air suction fan and the second end of the air duct are both facing the cover plate. The cover plate is provided with a plurality of air inlet holes at the air inlet end facing the air suction fan, and is provided with a plurality of air outlet holes at the second end facing the air duct.

[0015] The thermal overload detector of the utility model is characterized in that the air duct is non-linear.

[0016] The thermal overload detector of the utility model, wherein the display assembly is fixedly connected to the sub-circuit board, the sub-circuit board is fixedly connected to the upper cover, and the sub-circuit board is located above the main circuit board;

[0017] The upper cover is fixedly connected to the bottom shell, and the housing comprises the upper cover and the bottom shell;

[0018] The display component is located on a side of the sub-circuit board away from the main circuit board, and the upper cover is provided with a plurality of second through holes facing the display component;

[0019] The display component includes: a display screen and a plurality of light emitting diodes, and a plurality of the second through holes are opposite to the display screen and the plurality of the light emitting diodes one by one.

[0020] In the thermal overload detector of the utility model, a jog switch is fixedly connected to a side surface of the sub-circuit board facing away from the main circuit board, and a third through hole is provided on the upper cover facing the jog switch.

[0021] In the thermal overload detector of the utility model, a transparent panel is provided above the plurality of second through holes and the third through holes, and the transparent panel is adhered to the top surface of the upper cover.

[0022] The thermal overload detector of the utility model is characterized in that the air intake fan is arranged inside the shell.

[0023] The beneficial effects of the utility model are as follows: the air intake fan draws in external air and blows it toward the gas sensor, the smoke sensor, and the temperature and humidity sensor through the air duct to perform gas content detection, smoke concentration detection, temperature and humidity detection, etc.; and a display component, a wiring socket, and a wireless communication module are also provided in the shell. The shell is transparent at the part facing the display component to facilitate viewing of the display content. A first through hole facing the wiring socket is provided on the shell to insert a flat cable; further, a wireless communication module is provided to realize wireless communication to meet different usage requirements; thereby realizing active analysis of the smoke concentration and gas content in the surrounding air and performing temperature and humidity detection, which is suitable for use in relatively closed places, and has a small size, and is more suitable for use in small spaces. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the utility model will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work:

[0025] Figure 1 It is an exploded view of a thermal overload detector of a preferred embodiment of the utility model;

[0026] Figure 2 It is a three-dimensional diagram of a thermal overload detector according to a preferred embodiment of the utility model. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the following will be described clearly and completely in combination with the technical solution in the embodiments of the utility model. Obviously, the described embodiments are partial embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of the utility model.

[0028] The thermal overload detector of the preferred embodiment of the utility model is as follows Figure 1 See also Figure 2 ; It includes an air intake fan 100, a gas sensor (not shown in the figure), a smoke sensor (not shown in the figure), and a temperature and humidity sensor (not shown in the figure); wherein the air intake fan 100 draws air from the outside and blows it toward the gas sensor, the smoke sensor, and the temperature and humidity sensor through the air duct 110;

[0029] A gas sensor is used to detect the gas concentration in the air of the air duct 110, such as H2, CH4, VOC, CO, CO2, O2 and the like. Different gas sensors are used to detect the concentration of corresponding gases according to different detection requirements;

[0030] The smoke sensor is used to detect the smoke concentration in the air of air duct 110. It detects based on the light shielding principle. Its sensitivity is more than 1,000 times that of traditional point-type smoke sensors and can sound an alarm at the early stage of a fire.

[0031] A temperature and humidity sensor, used to detect the temperature and humidity in the air of the air duct 110;

[0032] The first end of the air duct 110 faces the outlet end of the air suction fan 100 and the second end discharges air to the outside;

[0033] The air inlet fan 100, the gas sensor, the smoke sensor and the temperature and humidity sensor are all arranged in the housing 200;

[0034] The housing 200 is further provided with a display assembly 210, a wiring socket 220 and a wireless communication module (not shown in the figure). The housing 200 is transparent at a position facing the display assembly 210. The housing 200 is provided with a first through hole 201 facing the wiring socket 220. The first through hole 201 can be provided on the bottom shell 240 or the upper cover 260. The wiring socket 220 is used for power supply and communication. Furthermore, the wiring socket 220 is externally connected to a gas sensor, a smoke sensor and a temperature and humidity sensor to meet different usage requirements.

[0035] The air suction fan 100 draws air from the outside and blows it toward the gas sensor, the smoke sensor, and the temperature and humidity sensor through the air duct 110 to detect gas content, smoke concentration, temperature and humidity, etc.; and the housing 200 is also provided with a display component 210, a wiring socket 220, and a wireless communication module. The housing 200 is transparent at the position opposite to the display component 210, so as to facilitate viewing of the displayed content. The housing 200 is provided with a first through hole 201 opposite to the wiring socket 220 for inserting a flat cable; further, a wireless communication module is provided to realize wireless communication to meet different usage requirements; thereby realizing active analysis of smoke concentration, gas content, and temperature and humidity detection in the surrounding air, which is suitable for use in relatively closed places, and has a small size, and is more suitable for use in small spaces;

[0036] For example: when performing thermal overload detection, the gas sensor can be used to detect the gas (substance) emitted by the object being detected only when thermal overload occurs, and then detect whether the object being detected has thermal overload. Together with the temperature detection function of the temperature and humidity sensor, redundant thermal overload detection can be performed on the object being detected.

[0037] like Figure 1 and Figure 2As shown, the gas sensor, smoke sensor and temperature and humidity sensor are all fixedly connected to the bottom surface of the main circuit board 230;

[0038] The main circuit board 230 is fixedly connected to the bottom shell 240, and the bottom shell 240 is provided with an air duct 110. The bottom surface of the main circuit board 230 faces the air duct 110; the gas sensor, the smoke sensor and the temperature and humidity sensor are all located in the air duct 110 to realize active detection.

[0039] like Figure 1 and Figure 2 As shown, the bottom surface of the main circuit board 230 seals the air duct 110 ; to facilitate the processing and manufacturing of the air duct 110 , a groove can be set in the bottom shell 240 to form the air duct 110 in cooperation with the main circuit board 230 .

[0040] like Figure 1 and Figure 2 As shown, the wiring socket 220 and the wireless communication module are both fixedly connected to the main circuit board 230; wherein the wireless communication module is a GPRS communication module or a Bluetooth communication module, a WiFi communication module, etc.

[0041] like Figure 1 and Figure 2 As shown, a cover plate 241 is fixedly connected to the side of the bottom shell 240;

[0042] The air inlet end of the air suction fan 100 and the second end of the air duct 110 are both facing the cover plate 241. The cover plate 241 is provided with multiple air inlet holes 242 at the air inlet end facing the air suction fan 100, and is provided with multiple air outlet holes 243 at the second end facing the air duct 110. It is beautiful and easy to install and protect the fan.

[0043] like Figure 1 As shown, the air duct 110 is non-linear; the flow rate of the air in the air duct 110 is reduced, leaving a certain detection time for the gas sensor, the smoke sensor and the temperature and humidity sensor to avoid large errors in the detection results.

[0044] like Figure 1 and Figure 2 As shown, the display assembly 210 is fixedly connected to the sub-circuit board 250, the sub-circuit board 250 is fixedly connected to the upper cover 260, and the sub-circuit board 250 is located above the main circuit board 230;

[0045] The upper cover 260 is fixedly connected to the bottom shell 240, and preferably the upper cover 260 is welded and fixed to the bottom shell 240 by ultrasonic welding technology. The housing 200 includes the upper cover 260 and the bottom shell 240;

[0046] The display component 210 is located on a side of the sub-circuit board 250 away from the main circuit board 230 , and a plurality of second through holes 211 are provided on the upper cover 260 facing the display component 210 ;

[0047] The display assembly 210 includes a display screen 212 and a plurality of light emitting diodes 213 , and the plurality of second through holes 211 face the display screen 212 and the plurality of light emitting diodes 213 one by one.

[0048] like Figure 1 As shown, a jog switch 251 is fixedly connected to a side of the sub-circuit board 250 facing away from the main circuit board 230 , and a third through hole 252 is provided on the upper cover 260 facing the jog switch 251 .

[0049] like Figure 1 and Figure 2 As shown, a transparent panel 253 is provided above the plurality of second through holes 211 and the third through holes 252 , and the transparent panel 253 is pasted on the top surface of the upper cover 260 ; the cost is low and the appearance is beautiful.

[0050] like Figure 1 and Figure 2 As shown, the air intake fan 100 is mounted in the housing 200 for easy installation.

[0051] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.

Claims

1. A thermal overload detector, comprising an air intake fan, a gas sensor, a smoke sensor and a temperature and humidity sensor; characterized in that: The air intake fan draws in external air and blows it toward the gas sensor, the smoke sensor and the temperature and humidity sensor through the air duct; The first end of the air duct faces the air outlet end of the air suction fan and the second end discharges air to the outside; The air intake fan, the gas sensor, the smoke sensor and the temperature and humidity sensor are all arranged in the housing; A display component, a wiring socket and a wireless communication module are also arranged in the shell. The shell is transparent at a position facing the display component. A first through hole facing the wiring socket is arranged on the shell.

2. The thermal overload detector according to claim 1, characterized in that: The gas sensor, the smoke sensor and the temperature and humidity sensor are all fixedly connected to the bottom surface of the main circuit board; The main circuit board is fixedly connected to the bottom shell, and the bottom shell is provided with an air duct, and the bottom surface of the main circuit board faces the air duct; the gas sensor, the smoke sensor and the temperature and humidity sensor are all located in the air duct.

3. The thermal overload detector according to claim 2, characterized in that: The bottom surface of the main circuit board seals the air duct.

4. The thermal overload detector according to claim 2, characterized in that: The wiring socket and the wireless communication module are both fixedly connected to the main circuit board.

5. The thermal overload detector according to claim 3, characterized in that: A cover plate is fixedly connected to the side of the bottom shell; The air inlet end of the air suction fan and the second end of the air duct are both facing the cover plate. The cover plate is provided with a plurality of air inlet holes at the air inlet end facing the air suction fan, and is provided with a plurality of air outlet holes at the second end facing the air duct.

6. The thermal overload detector according to claim 1, characterized in that: The air duct is non-linear.

7. The thermal overload detector according to claim 2, characterized in that: The display assembly is fixedly connected to the sub-circuit board, the sub-circuit board is fixedly connected to the upper cover, and the sub-circuit board is located above the main circuit board; The upper cover is fixedly connected to the bottom shell, and the housing comprises the upper cover and the bottom shell; The display component is located on a side of the sub-circuit board away from the main circuit board, and the upper cover is provided with a plurality of second through holes facing the display component; The display component includes: a display screen and a plurality of light emitting diodes, and a plurality of the second through holes are opposite to the display screen and the plurality of the light emitting diodes one by one.

8. The thermal overload detector according to claim 7, characterized in that: A jog switch is fixedly connected to a side of the sub-circuit board facing away from the main circuit board, and a third through hole is provided on the upper cover facing the jog switch.

9. The thermal overload detector according to claim 8, characterized in that: A transparent panel is provided above the plurality of second through holes and the third through holes, and the transparent panel is adhered to the top surface of the upper cover.

10. The thermal overload detector according to claim 1, characterized in that: The air intake fan is disposed in the housing.

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