A battery lamp with built-in fire extinguishing function

Abstract

A battery lamp with a built-in fire extinguishing function, comprising a lamp body and a rechargeable battery assembly arranged in the lamp body, characterized in that it also includes an automatic fire extinguishing assembly arranged in the lamp body, the automatic fire extinguishing assembly includes a closed box body for accommodating the rechargeable battery assembly, a fire extinguishing device, and a filler placed between the rechargeable battery assembly and the closed box body for buffering; the fire extinguishing device includes a fire extinguishing agent carrier that is tightly attached to the surface of the rechargeable battery assembly and a temperature sensing component that extends from the inside of the fire extinguishing agent carrier.

Description

Technical Field

[0001] The utility model relates to the technical field of stage lamps, and more specifically to a battery lamp with a fire extinguishing function. Background Art

[0002] At present, most of the lamps used in various occasions do not have built-in fire extinguishing functions. Therefore, when a lamp catches fire, generally only external fire extinguishing methods can be used. Usually, small battery lamps are equipped with rechargeable batteries for easy carrying. Rechargeable batteries are prone to spontaneous combustion and high temperatures. In addition, general battery lamps have a shell to protect the internal parts. Therefore, when the rechargeable battery burns, the external fire extinguishing method cannot put out the flames at the fire point in time, and then the fire spreads and destroys other parts inside the lamp. Summary of the invention

[0003] The utility model provides a battery lamp with a built-in fire extinguishing function, which improves the fire extinguishing efficiency and ensures the safety of other parts inside the lamp.

[0004] In order to solve the above problems, the utility model adopts the following solutions:

[0005] The technical solution adopted by the utility model is a battery lamp with a built-in fire extinguishing function, including a lamp body and a rechargeable battery assembly arranged in the lamp body, and also including an automatic fire extinguishing assembly arranged in the lamp body, the automatic fire extinguishing assembly includes a closed box body for accommodating the rechargeable battery assembly, a fire extinguishing device, and a filler placed between the rechargeable battery assembly and the closed box body for buffering; the fire extinguishing device includes a fire extinguishing agent carrier that is tightly attached to the surface of the rechargeable battery assembly and a temperature sensing component that extends from the inside of the fire extinguishing agent carrier.

[0006] As a further improvement of the utility model, the temperature sensing element is a temperature sensing wire, and the temperature sensing wire is in close contact with the line surface of the rechargeable battery assembly.

[0007] As a further improvement of the utility model, a plurality of fire extinguishing agent injection ports are provided on the surface of the fire extinguishing agent carrier.

[0008] As a further improvement of the utility model, the fire extinguishing agent encapsulated in the fire extinguishing agent carrier is a thermal aerosol.

[0009] As a further improvement of the utility model, the rechargeable battery assembly includes a rechargeable battery and an output power line, and one side surface of the closed box body is provided with an opening for the output power line to pass through.

[0010] As a further improvement of the present invention, an isolating piece is elastically embedded in the opening, and the output power line passes through the isolating piece and the two are tightly fitted to each other.

[0011] As a further improvement of the utility model, the isolation piece is preheated expansion cotton.

[0012] As a further improvement of the utility model, the filler is EVA padding.

[0013] As a further improvement of the utility model, the lamp body includes a front cover assembly and a rear cover assembly, and the automatic fire extinguishing assembly is located between the front cover assembly and the rear cover assembly.

[0014] As a further improvement of the present utility model, the lamp body includes a lamp holder assembly and a bottom box assembly, and the automatic fire extinguishing assembly is located inside the bottom box assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is an expanded view of the automatic fire extinguishing assembly of the fire extinguishing device of the utility model, which is closely attached to the upper surface of the rechargeable battery.

[0016] Figure 2 This is an expanded view of the automatic fire extinguishing assembly of the fire extinguishing device of the utility model, which is closely attached to the side of the rechargeable battery.

[0017] Figure 3 The utility model discloses a lamp structure.

[0018] Figure 4 This is another lamp structure of the utility model.

[0019] In the figure: automatic fire extinguishing assembly 1; fire extinguishing device 11; temperature sensing element 111; fire extinguishing agent carrier 112; fire extinguishing agent injection port 113; closed box body 12; upper cover 121; lower cover 122; opening 123; filler 13; isolation element 14; through hole 141; rechargeable battery assembly 2; rechargeable battery 21; output power line 22; upper surface 23; lower surface 24; side surface 25; lamp body 3; front cover assembly 31; rear cover assembly 32; lamp board heat dissipation assembly 4; bottom box assembly 5; lamp head assembly 6; bracket assembly 7. DETAILED DESCRIPTION

[0020] Combined with Figure 1 and attached Figure 2A battery lamp with a fire extinguishing function includes a lamp body 3 and a rechargeable battery assembly 2 arranged in the lamp body 3, and also includes an automatic fire extinguishing assembly 1 arranged in the lamp body 3. The automatic fire extinguishing assembly 1 includes a closed box body 12 for accommodating the rechargeable battery assembly 2, a fire extinguishing device 11, and a filler 13 placed between the rechargeable battery assembly 2 and the closed box body 12 for buffering; the fire extinguishing device 11 includes a fire extinguishing agent carrier 112 respectively in close contact with the surface of the rechargeable battery assembly 2, and a temperature sensing member 111 extending from the inside of the fire extinguishing agent carrier. The closed box body 12 is composed of an upper cover 121 and a lower cover 122. The upper cover 121 is a box body with an opening at one end and two fixing plates arranged opposite to each other at the opening end, and the lower cover 122 is a rectangular flat plate. The closed box body 12 is firmly installed inside the lamp body 3 by bolts or other fasteners. The fire extinguishing device 11 is located inside the closed box body 12, and has a better fire extinguishing effect inside the closed box body 12. The beneficial effect of this embodiment is that when the rechargeable battery 21 spontaneously ignites, the closed box body 12 controls the fire within a sealed space to prevent burning of other components in the lamp body 3; and, the high temperature generated by the spontaneous combustion of the rechargeable battery 21 triggers the temperature sensing element 111, thereby causing the fire extinguishing device 11 to respond quickly, releasing the flame retardant in the closed box body 12 and ensuring that the flame retardant is at a certain concentration.

[0021] As a new implementation method, combined with the Figure 1 and attached Figure 2 , the temperature sensing element 111 is a temperature sensing line, and the temperature sensing line is in close contact with the surface of the rechargeable battery assembly 2. The temperature sensing line is a linear object extending from the inside of the fire extinguishing agent carrier 112, located on the side of the fire extinguishing agent carrier 112, and its length is approximately one-fourth of the circumference of the upper surface 23 of the rechargeable battery 21. The temperature sensing line is mainly used to detect changes in temperature inside the closed box body 12, specifically, to monitor the high temperature caused by the spontaneous combustion of the rechargeable battery 21. And after monitoring the high temperature generated by the spontaneous combustion of the rechargeable battery 21, the fire extinguishing device 11 is quickly triggered. In this embodiment, the temperature sensing line is fixed by a cable tie and the surface is in close contact with the surface of the rechargeable battery 21. It can be understood that the temperature sensing line can also be fixed by other means. The beneficial effect of this embodiment is that because the temperature sensing element 111 is in close contact with the rechargeable battery assembly, the temperature change can be monitored more quickly; therefore, when the rechargeable battery 21 spontaneously ignites, the fire extinguishing device 11 can respond quickly.

[0022] Based on the above, in this embodiment, a plurality of fire extinguishing agent injection ports 113 are provided on the surface of the fire extinguishing agent carrier 112. Figure 1 and attached Figure 2The fire extinguishing agent injection port 113 is a conical truncated cone with a through hole in the center, and the fire extinguishing agent injection ports 113 are respectively located on the four sides of the fire extinguishing agent carrier 112. Three fire extinguishing agent injection ports 113 are respectively distributed on two opposite sides, and one fire extinguishing agent injection port 113 is distributed on each of the other two opposite sides. The high temperature generated by the spontaneous combustion of the rechargeable battery 21 triggers the fire extinguishing device 11, and the fire extinguishing agent carrier 112 in the fire extinguishing device 11 releases the fire extinguishing agent through multiple fire extinguishing agent injection ports 113. The beneficial effect of this embodiment is that when the rechargeable battery 21 spontaneously ignites, multiple fire extinguishing agent injection ports 113 quickly release the fire extinguishing agent. Since the fire extinguishing agent injection ports 113 are located on four sides, an all-round fire extinguishing effect can be achieved.

[0023] Based on the above, in this embodiment, the fire extinguishing agent encapsulated in the fire extinguishing agent carrier 112 is a hot aerosol. Figure 1 and attached Figure 2 The fire extinguishing agent carrier 112 is a rectangular box located inside the closed box body 12 and is in close contact with the upper surface 23 or the side surface 25 of the rechargeable battery assembly 2. When a specific temperature is reached, the fire extinguishing device 11 is triggered, and the fire extinguishing agent carrier 112 ejects a hot aerosol of the fire extinguishing agent. It is understandable that the fire extinguishing agent can also be other substances. The beneficial effect of this embodiment is that under sealed conditions, when the rechargeable battery 21 spontaneously ignites, and the flame spreads to the temperature sensing element 111 or the temperature in the closed box body 12 reaches 170°C, the fire extinguishing agent carrier 112 releases the hot aerosol of the fire extinguishing agent through the fire extinguishing agent injection port 113. Hot aerosol is a condensed aerosol with fire extinguishing properties generated by a solid chemical mixture through a chemical reaction. Specifically, the hot air flow melts the solid chemical mixture at a high temperature, and then evenly sprays it in the air flow to form fine particles. These particles can efficiently absorb and neutralize the combustion free radicals generated by the spontaneous combustion of the rechargeable battery 21, so as to achieve the effect of rapid fire extinguishing without causing damage to the equipment.

[0024] Based on the above, in this embodiment, the rechargeable battery assembly 2 includes a rechargeable battery 21 and an output power line 22, and one side of the closed box body 12 is provided with an opening 123 for the output power line 22 to pass through. Figure 1 , the opening 123 is a through hole with two ends open. In order to make the subsequent sealing more tight, the size of the opening 123 is designed to be slightly larger than the output power line 22. The rechargeable battery 21 is located in the closed box body 12, and the output power line 22 passes through the opening 123 on the side of the closed box body 12 and is connected to the wire located outside the closed box body 12. The beneficial effect of this embodiment is that the size of the opening 123 provides convenience for the subsequent sealing work, and the output power line 22 can also pass through the opening 123 to supply power to other components in the lamp body 3.

[0025] Based on the above, in this embodiment, a battery lamp with a self-extinguishing function further includes an isolating member 14 elastically embedded in the opening 123, and the output power line 22 passes through the isolating member 14 and the two are closely attached to each other. Figure 1 The isolator 14 has a through hole 141 in the center, the size of which is consistent with the size of the opening 123 on the side of the closed box body 12, and the isolator 14 is a stretchable elastic element. The inner surface of the central through hole 141 of the isolator 14 is tightly fitted with the output power line 22. The beneficial effect of this embodiment is that the design of the isolator 14 is to effectively prevent the flame from spreading through the opening 123 to other components inside the lamp body 3 when the rechargeable battery 21 spontaneously ignites, and the fire extinguishing agent released by the fire extinguishing device 11 leaks through the opening 123.

[0026] Based on the above content, in this embodiment, the spacer 14 is preheated expansion cotton. It can be understood that the spacer 14 can also be made of other materials. Figure 1 , the isolation member 14 seals the opening 123 of the closed box body 12. When the rechargeable battery 21 spontaneously ignites and causes the temperature to rise, the preheating expansion cotton expands in volume, making its contact with the opening 123 and the output power line 22 more tightly, ensuring that the seal at the opening 123 is airtight. The beneficial effect of this embodiment is that it can not only prevent the fire in the closed box body 12 from spreading to other components in the lamp body 3, but also prevent the fire extinguishing agent in the closed box body 12 from leaking. Air is prevented from entering the closed box body 12 through the opening 123, thereby limiting the oxygen supply required for the fire.

[0027] As a new implementation, the filler 13 is EVA padding. Figure 1 and attached Figure 2 The EVA pad is rectangular and is placed between the lower surface 24 and the side surface 25 of the rechargeable battery assembly 2 and the closed box body 12, respectively, to reduce the collision between the rechargeable battery assembly 2 and the closed box body 12, and play a role in buffering protection. In this embodiment, the number of fillers 13 is 3 or 5; when the fire extinguishing device 11 is in close contact with the side surface 25 of the rechargeable battery assembly 2, the number of fillers 13 is 3; when the fire extinguishing device 11 is in close contact with the upper surface 23 of the rechargeable battery assembly 2, the number of fillers 13 is 5. The beneficial effect of this embodiment is that the rechargeable battery assembly 2 is prevented from shaking in the closed box body 12.

[0028] In summary, the working principle of a battery lamp with a self-contained fire extinguishing function is as follows: when the rechargeable battery 21 spontaneously ignites due to short circuit, aging, or working in a high temperature environment, the temperature sensing element 111 close to the surface of the rechargeable battery assembly 2 detects the high temperature, triggers the fire extinguishing device 11, and the fire extinguishing agent carrier 112 sprays the fire extinguishing agent through multiple fire extinguishing agent injection ports 113. At the same time, in order to prevent the fire from spreading to the outside of the closed box body 12, an isolation member 14 with a sealed opening 123 is provided to preheat the expansion cotton. The preheating expansion cotton of the isolation member 14 expands in volume when the temperature inside the closed box body 12 rises, confining the fire inside the closed box body 12, ensuring that the fire is within a controllable safety range.

[0029] The utility model provides a battery lamp with a built-in fire extinguishing function. There are two forms of lamp body structure, each of which can be applied to any of the above-mentioned implementation methods.

[0030] One of them, combined with Figure 1 and attached Figure 3 , the lamp body 3 includes a front cover assembly 31 and a rear cover assembly 32, and the automatic fire extinguishing assembly 1 is located between the front cover assembly 31 and the rear cover assembly 32. This lamp structure adopts a method in which the fire extinguishing device 11 is closely attached to the upper surface 23 of the rechargeable battery assembly 2, and fillers 13 are placed between the lower surface 24 and four side surfaces 25 of the rechargeable battery assembly and the closed box body 12. Compared with another installation method of the fire extinguishing device 11, this installation method saves more space, and the automatic fire extinguishing assembly 1 is small in size. The beneficial effect of this embodiment is that the battery lamp also includes a lamp board heat dissipation assembly 4. The lamp board heat dissipation assembly 4 is located between the front cover assembly 31 and the rear cover assembly 32, and the automatic fire extinguishing assembly 1 is installed below the lamp board heat dissipation assembly 4. Because the automatic fire extinguishing assembly 1 is small in size and the components of the lamp body structure are installed compactly, the battery lamp of this lamp body structure is small in size and more convenient to carry.

[0031] Another method, combined with Figure 2 and attached Figure 4, the lamp body 3 includes a lamp head assembly 6 and a bottom box assembly 5, and the automatic fire extinguishing assembly 1 is located in the bottom box assembly 5. The beneficial effect of this embodiment is that the lamp head assembly 6 rotates around the X-axis and is installed above the bottom box assembly 5. This design makes the battery lamp have a wider range of illumination. The bottom box assembly 5 is a rectangular box with an open end, and the lamp body 3 includes a bracket assembly 7. The automatic fire extinguishing assembly 1 is installed in the bottom box assembly 5, and is located between the bottom box assembly 5 and the bracket assembly 7. The automatic fire extinguishing assembly 1 includes a fire extinguishing device 11, and the fire extinguishing device 11 is in close contact with the side 25 of the rechargeable battery assembly 2 in this embodiment. This installation method makes the closed box body 12 larger in size, and can accommodate more rechargeable batteries 21, so that the battery lamp has a longer working time. And the bottom box assembly 5 of this lamp body 3 can just accommodate this automatic fire extinguishing assembly, and will not cause waste of the internal space of the bottom box assembly. Moreover, the automatic fire extinguishing device 1 of this lamp body structure is far away from the lamp holder assembly 6 including the light source, so when the rechargeable battery 21 spontaneously ignites, the lamp holder assembly 6 will not be affected.

Claims

1. A battery lamp with a built-in fire extinguishing function, comprising a lamp body and a rechargeable battery assembly arranged in the lamp body, characterized in that: It also includes an automatic fire extinguishing assembly arranged in the lamp body, the automatic fire extinguishing assembly includes a closed box body for accommodating a rechargeable battery assembly, a fire extinguishing device, and a filler placed between the rechargeable battery assembly and the closed box body for buffering; the fire extinguishing device includes a fire extinguishing agent carrier that is closely attached to the surface of the rechargeable battery assembly and a temperature sensing component that extends from the inside of the fire extinguishing agent carrier.

2. The battery lamp with built-in fire extinguishing function according to claim 1, characterized in that: The temperature sensing component is a temperature sensing wire, and the temperature sensing wire is in close contact with the line surface of the rechargeable battery assembly.

3. The battery lamp with built-in fire extinguishing function according to claim 2, characterized in that: A plurality of fire extinguishing agent injection ports are arranged on the surface of the fire extinguishing agent carrier.

4. The battery lamp with a self-contained fire extinguishing function according to claim 2, characterized in that: The fire extinguishing agent encapsulated in the fire extinguishing agent carrier is a hot aerosol.

5. The battery lamp with built-in fire extinguishing function according to claim 2, characterized in that: The rechargeable battery assembly includes a rechargeable battery and an output power line, and one side surface of the closed box body is provided with an opening for the output power line to pass through.

6. The battery lamp with built-in fire extinguishing function according to claim 5, characterized in that: It also includes an isolating piece elastically embedded in the opening, the output power line passes through the isolating piece and the two are tightly fitted to each other.

7. The battery lamp with self-extinguishing function according to claim 6, characterized in that: The isolating element is preheated expansion cotton.

8. The battery lamp with built-in fire extinguishing function according to claim 1, characterized in that: The filler is EVA padding.

9. The battery lamp with built-in fire extinguishing function according to claim 1, characterized in that: The lamp body comprises a front cover assembly and a rear cover assembly, and the automatic fire extinguishing assembly is located between the front cover assembly and the rear cover assembly.

10. The battery lamp with a self-contained fire extinguishing function according to claim 1, characterized in that: The lamp body comprises a lamp holder assembly and a bottom box assembly, and the automatic fire extinguishing assembly is located in the bottom box assembly.

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