Detection mechanism and fire extinguishing device

Abstract

The application discloses a detecting mechanism, which comprises a transmitting source, a receiving source and a light guide strip. The light guide strip is used for transmitting detection light emitted by the transmitting source to the receiving source. The light guide strip comprises a working state and a damaged state. When the temperature is not lower than a first preset temperature, the light guide strip enters the damaged state. When the light guide strip is in the working state, the light guide strip can transmit detection light with a first energy value to the receiving source. When the light guide strip is in the damaged state, the light guide strip can transmit detection light with a second energy value to the receiving source. The first energy value is greater than the second energy value. When a fire occurs, the temperature rises to the first preset temperature, and the receiving source can only receive detection light with the second energy value. The received energy value is lower than the first energy value, so that the occurrence of the fire can be determined. In this way, the occurrence of the fire can be quickly detected, so that the fire can be timely extinguished, and loss expansion can be avoided. The application also relates to a fire extinguishing device.

Description

Technical Field

[0001] This invention relates to the field of fire-fighting equipment technology, and in particular to a detection mechanism and a fire extinguishing device. Background Technology

[0002] Currently, smoke sensors are set in a fixed location. When a fire occurs at a location far from the smoke sensor, the generated smoke needs to spread to the location of the smoke sensor before it can be detected. However, the early smoke spreads slowly and may only be detected by the smoke sensor during the intense stage of the fire, leading to greater losses. Summary of the Invention

[0003] The purpose of this invention is to provide a detection mechanism and fire extinguishing device that can quickly detect fires.

[0004] A detection mechanism, comprising:

[0005] The emission source is used to emit detection light.

[0006] The receiving source is used to receive the detection light; and

[0007] A light guide strip is connected between the emitting source and the receiving source to deliver the detection light emitted by the emitting source to the receiving source. The light guide strip includes a working state and a damaged state, and the light guide strip enters the damaged state when the temperature is not lower than a first preset temperature.

[0008] When the light guide strip is in the working state, the light guide strip can transmit the detection light of the first energy value to the receiving source;

[0009] When the light guide strip is in the damaged state, the light guide strip can transmit the detection light of the second energy value to the receiving source;

[0010] Wherein, the first energy value is greater than the second energy value.

[0011] By setting up the aforementioned detection mechanism and placing the light guide strip in locations prone to fire, the light guide strip operates normally. However, in the event of a fire, the temperature rises to a preset first temperature, causing the light guide strip to break. The receiving source then only receives the detection light with a second energy value, which is lower than the first energy value. Therefore, the occurrence of a fire can be determined based on the change in energy received by the receiving source. This allows for rapid detection of fires, enabling timely firefighting and preventing further damage.

[0012] In one embodiment, the light guide strip also includes an open state, and the light guide strip enters the open state when the temperature is not lower than a second preset temperature;

[0013] When the light guide strip is in the disconnected state, the light guide strip can transmit the detection light of the third energy value to the receiving source;

[0014] Wherein, the second preset temperature is greater than the first preset temperature, and the second energy value is greater than the third energy value.

[0015] In one embodiment, the detection mechanism further includes a mounting housing, in which both the transmitter and the receiver are disposed.

[0016] In one embodiment, the detection mechanism further includes a first connector, which is fixedly connected to the end of the light guide strip away from the receiving source and detachably connected to the mounting housing, so as to connect the light guide strip to the emitting source when connected to the mounting housing.

[0017] In one embodiment, the detection mechanism further includes a second connector, which is fixedly connected to the end of the light guide strip away from the emitting source and detachably connected to the mounting housing, so as to connect the light guide strip to the receiving source when connected to the mounting housing.

[0018] In one embodiment, the mounting shell includes a housing and a partition plate. The housing has a receiving cavity and a first connection port and a second connection port communicating with the receiving cavity. The partition plate is disposed in the receiving cavity to divide the receiving cavity into a first mounting cavity and a second mounting cavity that are not communicating with each other. The first connection port communicates with the first mounting cavity, and the second connection port communicates with the second mounting cavity.

[0019] The emitting source is disposed in the first mounting cavity, and the light guide strip is connected to the emitting source through the first connection port; the receiving source is disposed in the second mounting cavity, and the light guide strip is connected to the receiving source through the second connection port.

[0020] In one embodiment, the detection mechanism further includes a circuit board disposed in the accommodating cavity, a partition plate abutting against the circuit board to divide the accommodating cavity into a first mounting cavity and a second mounting cavity, and the transmitting source and the receiving source are both connected to the circuit board.

[0021] In one embodiment, the detection mechanism further includes a controller and an alarm, both of which are connected to the circuit board. The controller is used to control the operation of the transmitting source and to control the alarm to operate based on the energy value of the detected light received by the receiving source.

[0022] In one embodiment, the detection mechanism further includes a shielding layer that covers the outside of the light guide strip and is used to shield the detection light inside the light guide strip.

[0023] A fire extinguishing device, comprising the detection mechanism described above. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the detection mechanism provided in an embodiment of the present invention;

[0025] Figure 2 for Figure 1 A schematic diagram of the installation structure of the transmitter or receiver in the detection mechanism shown;

[0026] Figure 3 for Figure 1 The diagram shows the layout of the detection mechanism used for battery protection.

[0027] Figure label:

[0028] 100. Detection mechanism; 200. Battery box;

[0029] 11. Transmitter; 12. Receiver; 13. Light guide strip; 14. First connector; 15. Second connector; 16. Shielding layer; 20. Mounting shell; 21. Housing; 22. Separator; 23. First mounting cavity; 24. Second mounting cavity; 25. First light guide tube; 26. Second light guide tube; 31. Circuit board; 32. Controller. Detailed Implementation

[0030] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0033] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0034] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0035] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0036] like Figure 1 and Figure 2 As shown, a detection mechanism 100 provided in one embodiment of the present invention includes a transmitter 11, a receiver 12, and a light guide strip 13.

[0037] The transmitter 11 is used to emit detection light, the receiver 12 is used to receive detection light, and the light guide strip 13 is connected between the transmitter 11 and the receiver 12 to deliver the detection light emitted by the transmitter 11 to the receiver 12. The light guide strip 13 includes a working state and a damaged state, and when the temperature is not lower than the first preset temperature, the light guide strip 13 enters the damaged state.

[0038] When the light guide strip 13 is in working condition, it can transmit the detection light of the first energy value to the receiving source 12; when the light guide strip 13 is in a damaged state, it can transmit the detection light of the second energy value to the receiving source 12.

[0039] The first energy value is greater than the second energy value.

[0040] By setting up the aforementioned detection mechanism and placing the light guide strip 13 in a location prone to fire, the light guide strip 13 is normally in operation. However, in the event of a fire, the temperature rises to the first preset temperature, causing the light guide strip 13 to break. The receiving source 12 then only receives the detection light with a second energy value, which is lower than the first energy value. Therefore, the occurrence of a fire can be determined based on the change in energy received by the receiving source 12. In this way, the occurrence of a fire can be detected quickly, allowing for timely firefighting and preventing further damage.

[0041] It should be noted that in this embodiment, the detection mechanism is used for battery protection, therefore... Figure 3 As shown, the light guide strip 13 is arranged around the battery box 200. When the battery inside the battery box 200 experiences thermal runaway or catches fire, the temperature will rise, causing the light guide strip 13 to break. Of course, in other embodiments, this detection mechanism can also be applied to other conventional scenarios, as long as the light guide strip 13 is arranged as needed, and there are no restrictions here.

[0042] It should also be explained that the first energy value is the energy of the detection light transmitted by the light guide strip 13 under normal conditions, which can be a fixed value, while the second energy value is the energy of the detection light transmitted after the light guide strip 13 is damaged, and its specific value is affected by the degree of damage to the light guide strip 13.

[0043] In some embodiments, the light guide strip 13 also includes an off state, and when the temperature is not lower than the second preset temperature, the light guide strip 13 enters the off state. When the light guide strip 13 is in the off state, the light guide strip 13 can transmit the detection light of the third energy value to the receiving source 12.

[0044] Among them, the second preset temperature is greater than the first preset temperature, and the second energy value is greater than the third energy value.

[0045] In other words, when thermal runaway or fire continues to get out of control, and the temperature continues to rise or rises rapidly, the light guide strip 13 will be burned off, causing the energy of the inspection light received by the receiving source 12 to continue to decrease.

[0046] It is understandable that when the light guide strip 13 is broken into two segments, and there is no external light source, and the detection light cannot be transmitted between the two segments of the light guide strip 13, the third energy value is zero.

[0047] When the detection mechanism is used for battery protection, since the light guide strip 13 is only wrapped around the battery box 200, the fact that the light guide strip 13 is in the disconnected state can indicate two situations. One situation is that the thermal runaway of the battery in the battery box 200 is further out of control, causing a fire. The other situation is that the light guide strip 13 is close to the battery that has experienced thermal runaway.

[0048] Dividing the light guide strip 13 into a damaged state and a disconnected state allows for graded pre-tensioning. However, when the light guide strip 13 is in the disconnected state, it indicates a more urgent situation, and suppression of thermal runaway batteries or fires can begin when the light guide strip 13 is in the damaged state.

[0049] In some embodiments, the detection mechanism further includes a mounting housing 20, on which both the transmitting and receiving sources 12 are disposed to improve integration.

[0050] Furthermore, the mounting shell 20 includes a shell 21 and a partition plate 22. The shell 21 has a receiving cavity and a first connection port and a second connection port communicating with the receiving cavity. The partition plate 22 is disposed in the receiving cavity to divide the receiving cavity into a first mounting cavity 23 and a second mounting cavity 24 that are not communicating with each other. The first connection port communicates with the first mounting cavity 23 and the second connection port communicates with the second mounting cavity 24.

[0051] The transmitter 11 is located in the first mounting cavity 23, and the light guide strip 13 is connected to the transmitter 11 through the first connection port. The receiver 12 is located in the second mounting cavity 24, and the light guide strip 13 is connected to the receiver 12 through the second connection port.

[0052] It is understandable that the partition plate 22 is opaque and divides the accommodating cavity into a first mounting cavity 23 and a second mounting cavity 24 that are not connected to each other. Moreover, the transmitting source 11 and the receiving source 12 are respectively located in the first mounting cavity 23 and the second mounting cavity 24, thereby preventing the detection light emitted by the transmitting source 11 from being directly received by the receiving source 12, which would affect the accuracy of the detection.

[0053] In some embodiments, the mounting housing 20 further includes a first light guide tube 25, which is connected to the first connection port of the housing 21 and located in the first mounting cavity 23, and the emission source 11 is disposed in the first light guide tube 25.

[0054] Furthermore, the mounting housing 20 also includes a second light guide tube 26, which is connected to the second connection port of the housing 21 and located in the second mounting cavity 24. The emission source 11 is disposed in the second light guide tube 26.

[0055] It should be noted that the light guide strip 13 is connected to the emitting source 11 and the receiving source 12. This can be achieved by having both ends of the light guide strip 13 in contact with the emitting source 11 and the receiving source 12 respectively, thereby realizing the reception and transmission of the detection light. Alternatively, it can be as follows... Figure 1 As shown, the transmitter 11 and receiver 12 are located in the first light guide tube 25 and the second light guide tube 26, respectively. The light guide strip 13 does not directly contact the transmitter 11 and the receiver 12, but the two ends of the light guide strip 13 can be connected to the transmitter 11 and the receiver 12 to realize the optical path.

[0056] In some embodiments, the detection mechanism further includes a circuit board 31 disposed in the accommodating cavity, a partition plate 22 abutting against the circuit board 31 to divide the accommodating cavity into a first mounting cavity 23 and a second mounting cavity 24, and both the transmitting source 11 and the receiving source 12 are connected to the circuit board 31.

[0057] Understandably, in Figure 2 In the process, the circuit board 31 is laid at the bottom of the accommodating cavity, the partition plate 22 abuts against the surface of the circuit board 31, and the circuit board 31 and the accommodating cavity are divided into a first mounting cavity 23 and a second mounting cavity 24 that are not connected to each other. The upper surface of the circuit board 31 forms the bottom wall of the first mounting cavity 23, and the other part forms the bottom wall of the second mounting cavity 24.

[0058] Additionally, it should be noted that when the circuit board 31 is not installed inside the accommodating cavity, the transmitting source 11 and the receiving source 12 are electrically connected in other ways. The partition plate 22 needs to contact the bottom wall of the accommodating cavity to divide the accommodating cavity into a first mounting cavity 23 and a second mounting cavity 24 that are not connected to each other, so as to avoid the detection light in the first mounting cavity 23 from leaking into the second mounting cavity 24.

[0059] In some embodiments, the detection mechanism further includes a controller 32, which is disposed on a circuit board 31 to be connected to both the transmitter 11 and the receiver 12 simultaneously via the circuit board 31, thereby controlling the transmitter 11 to emit detection light and determining whether a fire has occurred based on the energy value of the detection light received by the receiver 12.

[0060] It should be explained that the controller 32 determines whether a fire has occurred in the manner described above. Specifically, under normal circumstances, the receiving source 12 receives the detection light with a first energy value, and when the energy value of the detection light received by the receiving source 12 decreases, the controller 32 can determine that a fire has occurred.

[0061] In some embodiments, the detection mechanism further includes an alarm connected to the circuit board 31. The controller 32 can control the alarm to operate based on the energy value of the detection light received by the receiving source 12. That is, when the controller 32 determines that a fire has occurred based on the change in the energy value of the detection light received by the receiving source 12, the controller 32 controls the alarm to sound an alarm to remind staff to handle the situation in a timely manner.

[0062] It should be noted that the alarm can be connected to the circuit board 31 by placing the alarm in another location and connecting it to the circuit board 31 via a wire, or by setting a wireless module on the circuit board 31, connecting the wireless module to the controller 32, and wirelessly connecting the wireless module to the alarm. There are no restrictions on this.

[0063] In some embodiments, the detection mechanism further includes a first connector 14, which is fixedly connected to the end of the light guide strip 13 away from the receiving source 12, and is detachably connected to the mounting housing 20, so that when connected to the mounting housing 20, the light guide strip 13 is connected to the emitting source 11, so that the light guide strip 13 receives the detection light emitted by the emitting source 11.

[0064] In some embodiments, the detection mechanism further includes a second connector 15, which is fixedly connected to the end of the light guide strip 13 away from the emission source 11, and is detachably connected to the mounting housing 20, so that when connected to the mounting housing 20, the light guide strip 13 is connected to the receiving source 12, thereby transmitting the detection light to the receiving source 12.

[0065] Understandably, by setting up the first connector 14 and the second connector 15, the convenience and stability of the connection can be improved.

[0066] In practical applications, one end of the first connector 14 passes through the first connection port and is detachably connected to the first light guide tube 25, and one end of the second connector 15 passes through the second connection port and is detachably connected to the second light guide tube 26.

[0067] In some embodiments, the first connector 14 and the second connector 15 are both pneumatic quick connectors to quickly connect the first connector 14 and the second connector 15 to the mounting housing 20.

[0068] In some embodiments, the detection mechanism further includes a shielding layer 16, which covers the outside of the light guide strip 13 and is used to shield the detection light inside the light guide strip 13 to prevent light leakage when the light guide strip 13 transmits the detection light, thereby ensuring the accuracy of the detection.

[0069] It should be noted that the shielding layer 16 has a certain temperature resistance. The specific temperature resistance can be determined by selecting the appropriate material. When used for battery protection, the maximum temperature that the shielding layer 16 can withstand is 85 degrees Celsius to 150 degrees Celsius.

[0070] Understandably, when the temperature rises to the second preset temperature, the shielding layer 16 will also be burned out.

[0071] In some embodiments, the light guide strip 13 is an optical fiber.

[0072] It should be explained that the temperature rises to the first preset temperature, causing the light guide strip 13 to enter a damaged state, specifically, the light guide strip 13 deforms due to heat.

[0073] A fire extinguishing device includes the detection mechanism described in the above embodiments.

[0074] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0075] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A detection mechanism, characterized by, The detection mechanism comprises: a transmitting source for transmitting detection light; a receiving source for receiving detection light; a mounting shell, wherein the transmitting source and the receiving source are arranged in the mounting shell; a light guide strip connected between the transmitting source and the receiving source for transmitting detection light emitted by the transmitting source to the receiving source, wherein the light guide strip comprises a working state and a broken state, and when the temperature is not lower than a first preset temperature, the light guide strip enters the broken state; when the light guide strip is in the working state, the light guide strip can transmit detection light with a first energy value to the receiving source, wherein the first energy value is the energy of detection light transmitted by the light guide strip under normal circumstances; when the light guide strip is in the broken state, the light guide strip can transmit detection light with a second energy value to the receiving source, wherein the second energy value is the energy of detection light transmitted by the light guide strip after being broken; wherein the first energy value is greater than the second energy value; the light guide strip further comprises a disconnected state, and when the temperature is not lower than a second preset temperature, the light guide strip enters the disconnected state; when the light guide strip is in the disconnected state, the light guide strip can transmit detection light with a third energy value to the receiving source; wherein the second preset temperature is greater than the first preset temperature, and the second energy value is greater than the third energy value. The detection mechanism further comprises a first connector fixedly connected to one end of the light guide strip away from the receiving source and detachably connected to the mounting shell, so as to connect the light guide strip to the transmitting source when connected to the mounting shell.

2. The probe mechanism of claim 1, wherein, The detection mechanism further comprises a second connector fixedly connected to one end of the light guide strip away from the transmitting source and detachably connected to the mounting shell, so as to connect the light guide strip to the receiving source when connected to the mounting shell.

3. The probe mechanism of claim 1, wherein, The mounting shell comprises a shell body and a partition plate, wherein the shell body has a receiving cavity, a first connecting port and a second connecting port in communication with the receiving cavity, and the partition plate is arranged in the receiving cavity to divide the receiving cavity into a first mounting cavity and a second mounting cavity which are not in communication with each other, the first connecting port is in communication with the first mounting cavity, and the second connecting port is in communication with the second mounting cavity; 4. The probe mechanism of claim 1, wherein, the transmitting source is arranged in the first mounting cavity, and the light guide strip is connected to the transmitting source through the first connecting port; the receiving source is arranged in the second mounting cavity, and the light guide strip is connected to the receiving source through the second connecting port. The detection mechanism further comprises a circuit board arranged in the receiving cavity, and the partition plate abuts against the circuit board to divide the receiving cavity into the first mounting cavity and the second mounting cavity together with the circuit board, and the transmitting source and the receiving source are connected to the circuit board.

5. The probe mechanism of claim 4, wherein, The detection mechanism further comprises a controller and an alarm, wherein the controller and the alarm are connected to the circuit board, the controller is used to control the transmitting source to act, and the controller is used to control the alarm to act according to the energy value of detection light received by the receiving source.

6. The probe mechanism of claim 5, wherein, ​ 7. The probe mechanism of claim 1, wherein, The detection mechanism further comprises a shielding layer, which is coated on the outside of the light guide strip and used for shielding the detection light in the light guide strip.

8. A fire extinguishing apparatus, characterized by The detection mechanism comprises the detection mechanism according to any one of claims 1-7.

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