Smoke-sensing and temperature-sensing composite fire detector for energy storage power station

By designing a smoke-sensitive composite fire detector including temperature sensors, smoke channels and light source components in an energy storage power station, the problem of existing detectors being prone to false alarms is solved, and more accurate fire detection results are achieved.

CN222462146UActive Publication Date: 2025-02-11SHANGHAI LIANJIE AUTO TECH +1
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Patent Information

Application Number
CN202420577058.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-03-22
Publication Date
2025-02-11
Estimated Expiration
2034-03-22

AI Technical Summary

Technical Problem

Existing smoke-sensitive temperature-sensitive composite detectors are prone to false alarms, resulting in inaccurate fire detection results in energy storage power plants.

Method used

A composite fire detector for smoke sensing and temperature sensing for energy storage power stations is designed. By setting temperature sensors and smoke channels in the base, a smoke sensing space is formed, and a light source emission component and light source reception are set in the smoke sensing space. The component uses the first obstacle and the second obstacle to avoid diffuse reflection of light and ensures data stability.

Benefits of technology

It effectively avoids diffuse reflection of light in the side wall of the smoke sensing space and is received by the light source receiving component, reduces the instability of data in the initial state, improves the accuracy of detection results, and reduces the possibility of false alarms.

✦ Generated by Eureka AI based on patent content.

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Abstract

According to the smoke-sensing and temperature-sensing composite fire detector for the energy storage power station provided by the utility model, the base and the shell are arranged to form the smoke sensing space, the temperature sensor is arranged in the base, and the smoke channel is arranged in the base, so that the smoke detection area is formed in the smoke sensing space; the smoke sensing space is internally provided with a light source emitting assembly and a light source receiving assembly of which the path intersection is in the smoke detection area, and is further provided with a first obstacle, and the first obstacle is configured to refract or reflect light rays which can be refracted into the light source receiving assembly through the side wall of the smoke sensing space. Therefore, the part of light can be absorbed by a first division area formed by the first barrier and the light source emitting assembly. Therefore, the situation that data is unstable in an initial state due to the fact that light rays are subjected to diffuse reflection in the side wall of the smoke sensing space and are received by the light source receiving assembly is avoided, and the problem that an existing smoke-sensing and temperature-sensing composite detector is prone to false alarm is solved.
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Description

Technical Field

[0001] The utility model belongs to the technical field of electrochemical energy storage safety protection, and in particular relates to a smoke and temperature composite fire detector for energy storage power stations. Background Art

[0002] With the increasing depletion of traditional energy, the development of new energy has been greatly promoted, and the scale of installed capacity has also risen rapidly. The power generation of new energy such as wind power and solar energy depends on natural conditions, has the characteristics of volatility and intermittency, and is difficult to regulate and control. Large-scale grid-connected operation will have a significant impact on the safe and stable operation of the power grid. Energy storage technology can greatly solve the problems of randomness and volatility of new energy power generation and improve the utilization rate of renewable clean energy. Large-scale new energy installations have led to the rapid development of large-scale energy storage systems.

[0003] At present, the fastest growing large-scale energy storage technology is large-scale battery energy storage technology, which is characterized by the fact that power and energy can be flexibly configured according to different application needs, with a fast response speed, suitable for large-scale application and mass production. In recent years, large-scale battery energy storage power stations have begun to be put into construction and operation in large quantities. Battery energy storage has many advantages, but batteries are devices containing high-energy substances, which have certain safety hazards and the probability of dangerous accidents. As the scale of battery energy storage systems expands, the probability of dangerous accidents will greatly increase. Usually, under the dual effects of external electrical and thermal stimulation and their own aging, energy storage batteries may undergo thermal runaway reactions, releasing a large amount of high-temperature flammable gas mixtures, which are very likely to explode when encountering oxygen and electric sparks in the external air.

[0004] The existing energy storage power station is composed of battery cabinets as basic units arranged in containers. Since containers are usually of standard size, in order to maximize the battery capacity in the container and save costs, it is necessary to reduce the volume and cost of each battery cabinet as much as possible. Usually, a battery cabinet includes a cabinet body and several battery packs stacked in the cabinet body. Each battery pack has the possibility of thermal runaway and other conditions.

[0005] In an energy storage power station environment, lithium batteries will experience thermal runaway in extreme cases, and the battery pack will release a large amount of carbon monoxide and hydrogen. Since hydrogen has the smallest relative molecular mass, it tends to gather in the top layer of the mixed gas produced by battery overcharging, that is, near the safety valve. Hydrogen with the smallest molecular mass diffuses the fastest. When the internal temperature of the battery exceeds the critical value of the diaphragm melting, it causes a larger area of ​​internal short circuit, complete thermal runaway, and visible smoke and a large amount of gas are ejected.

[0006] The current common solution is to use gas detection and voltage and current monitoring to monitor the overcharge and thermal runaway process of lithium battery modules. However, in the existing smoke and temperature composite detectors, the light output by the light source transmitting tube is easily received by the light source receiving tube after refraction, resulting in unstable data in the initial state, which in turn affects the detection results and is prone to false alarms caused by inaccurate detection. Utility Model Content

[0007] The technical problem to be solved by the utility model is to provide a smoke and temperature composite fire detector for an energy storage power station, so as to solve the problem of easy false alarm in the existing smoke and temperature composite detectors.

[0008] To solve the above problems, the technical solution of the utility model is:

[0009] The utility model discloses a smoke and temperature composite fire detector for an energy storage power station, comprising:

[0010] A base, wherein a temperature sensor is disposed in the base, and at least part of a temperature measuring end of the temperature sensor extends out of the base;

[0011] A housing, covering the base and forming a smoke sensing space;

[0012] The base is provided with a smoke passage penetrating to the smoke sensing space, and the area formed by the smoke passage extending in the smoke sensing space is the smoke detection area;

[0013] A light source transmitting component and a light source receiving component are provided in the smoke sensing space, and a light source output path of the light source transmitting component and a light source receiving path of the light source receiving component are configured to intersect in the smoke detection area, and the intersection point is defined as an intersection point;

[0014] Define the line connecting the light source emitting component to the intersection as a first line segment, and the line connecting the light source receiving component to the intersection as a second line segment, wherein the first line segment and the second line segment cooperate to divide the smoke sensing space into a close area and a divergent area, wherein the area corresponding to the angle less than 180° formed by the first line segment and the second line segment is the close area, and the angle greater than 180° formed by the first line segment and the second line segment corresponds to the divergent area;

[0015] It also includes a first obstacle, which is arranged in the departure area, and the first obstacle divides the departure area into a first divided area close to the light source emitting component and a second divided area close to the light source receiving component; the first obstacle is configured to reflect part of the light output by the light source emitting component and be absorbed by the wall of the first divided area, and the first obstacle is configured to absorb the diffusely reflected light in the second divided area.

[0016] The utility model of the smoke and temperature composite fire detector for energy storage power station also includes a second obstacle;

[0017] The second obstacle is arranged in the proximity area and extends to the edge of the smoke detection area, and is used to block the light output by the light source emitting component from directly entering the light source receiving component.

[0018] The utility model discloses a smoke and temperature sensing composite fire detector for an energy storage power station, wherein the light source emission assembly comprises a first mounting frame and a light source emission tube;

[0019] The first mounting frame is disposed on the base, and the first mounting frame is configured to form a first mounting area for mounting the light source emitting tube and a light outlet connected to the smoke sensing space;

[0020] The light source emitting tube is installed in the first installation area.

[0021] The utility model of the smoke and temperature composite fire detector for energy storage power station, the first mounting frame includes a first mounting plate and a second mounting plate;

[0022] The first mounting plate and the second mounting plate are installed on the base in parallel and at intervals, and the first mounting plate is located in the approaching area, and the second mounting plate is located in the departing area;

[0023] A first extension plate is disposed on a side of the first mounting plate facing the smoke detection area, and a second extension plate is disposed on a side of the second mounting plate facing the smoke detection area. The interval between the first extension plate and the second extension plate is the light outlet.

[0024] The smoke and temperature composite fire detector for energy storage power stations of the utility model also includes a third obstacle, which is arranged on the base, and a first end of the third obstacle is connected to the second obstacle, and the other end of the third obstacle is arranged corresponding to the first extension plate.

[0025] The utility model of the smoke and temperature composite fire detector for energy storage power station, the light source receiving assembly comprises a second mounting frame and a light source receiving tube;

[0026] The second mounting frame is disposed on the base, and the second mounting frame is configured to form a second mounting area for mounting the light source receiving tube and a light inlet communicating with the smoke sensing space;

[0027] The light source receiving tube is installed in the second installation area, and the convex lens is installed in the second installation area and is located on the light source receiving path of the light source receiving tube.

[0028] The utility model of the smoke and temperature composite fire detector for energy storage power station, the second mounting frame includes a third mounting plate and a fourth mounting plate;

[0029] The third mounting plate and the fourth mounting plate are installed on the base in parallel and at intervals, and the third mounting plate is located in the approaching area, and the fourth mounting plate is located in the departing area;

[0030] A third extension plate is disposed on a side of the third mounting plate facing the smoke detection area, a fourth extension plate is disposed on a side of the fourth mounting plate facing the smoke detection area, and a space between the third extension plate and the fourth extension plate is the light entrance.

[0031] The utility model of the smoke and temperature composite fire detector for energy storage power station also includes a fourth obstacle, which is arranged on the base, and the first end of the fourth obstacle is connected to the second obstacle, and the other end of the fourth obstacle is set corresponding to the third extension plate.

[0032] The utility model discloses a smoke and temperature composite fire detector for an energy storage power station, wherein the base comprises a bottom shell and a middle shell;

[0033] The middle shell is installed on the bottom shell and cooperates to form a temperature sensing installation space, and a temperature sensing installation opening connected to the temperature sensing installation space is opened on the bottom shell, the temperature sensor is installed in the temperature sensing installation space, and the temperature measuring end of the temperature sensor extends out of the temperature sensing installation opening;

[0034] The middle shell cooperates with the outer shell to form a smoke sensing space.

[0035] The utility model of the smoke and temperature composite fire detector for energy storage power station, the bottom shell is provided with a bottom shell smoke passage and a hollow cylinder connected to the bottom shell smoke passage;

[0036] The middle shell is provided with a middle shell smoke passage, and the hollow cylinder is configured to penetrate the middle shell smoke passage and be connected to the smoke detection space; the outer shell is provided with an outer shell smoke passage corresponding to the smoke detection space.

[0037] Due to the adoption of the above technical solution, the utility model has the following advantages and positive effects compared with the prior art:

[0038] In one embodiment of the utility model, a smoke sensing space is formed by setting a base and a shell, a temperature sensor is set in the base and a smoke channel is set in the base to form a smoke detection area in the smoke sensing space, a light source emitting component and a light source receiving component are set in the smoke sensing space, and a first obstacle is further set, and the first obstacle is configured to refract or reflect the light that can enter the light source receiving component through the side wall of the smoke sensing space, so that the part of the light can be absorbed by the first divided area formed by the first obstacle and the light source emitting component. This avoids the situation that the light is diffusely reflected in the side wall of the smoke sensing space and is received by the light source receiving component, resulting in unstable data in the initial state, and solves the problem of easy false alarms in the existing smoke and temperature sensing composite detectors. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 This is an exploded view of the smoke and temperature composite fire detector for energy storage power stations of the utility model;

[0040] Figure 2 It is a schematic diagram of the middle shell of the smoke and temperature composite fire detector for energy storage power station of the utility model;

[0041] Figure 3 It is a schematic diagram of light refraction of the smoke and temperature composite fire detector for energy storage power stations of the utility model in the smoke detection state.

[0042] Explanation of the reference numerals: 1. outer shell; 2. middle shell; 3. bottom shell; 301. hollow cylinder; 4. temperature sensor; 5. first obstacle; 6. second obstacle; 7. third obstacle; 8. fourth obstacle; 9. light source emitting tube; 10. light source receiving tube; 11. convex lens; 12. first mounting plate; 13. first extension plate; 14. second mounting plate; 15. second extension plate; 16. third mounting plate; 17. third extension plate; 18. fourth mounting plate; 19. fourth extension plate; 20. first support plate; 21. second support plate; 22. first divided area; 23. second divided area; 24. smoke detection area; 25. light outlet; 26. light inlet. DETAILED DESCRIPTION

[0043] The following is a further detailed description of a smoke and temperature composite fire detector for an energy storage power station proposed by the utility model in combination with the accompanying drawings and specific embodiments. The advantages and features of the utility model will become clearer according to the following description and claims.

[0044] See also Figures 1 to 3 In one embodiment, a smoke and temperature composite fire detector for an energy storage power station includes a base, a housing 1, a first obstacle 5, a light source emitting component, and a light source receiving component.

[0045] A temperature sensor 4 is provided in the base, and at least part of the temperature measuring end of the temperature sensor 4 extends out of the base. The housing 1 covers the base and cooperates to form a smoke sensing space. A smoke channel is provided in the base that runs through the smoke sensing space, and the area formed by the smoke channel extending in the smoke sensing space is the smoke detection area 24.

[0046] The above-mentioned light source transmitting component and light source receiving component are arranged in the smoke sensing space, and the light source output path of the light source transmitting component and the light source receiving path of the light source receiving component are configured to intersect in the smoke detection area 24, and the intersection point is defined as the intersection point. The line connecting the light source transmitting component to the intersection point is defined as the first line segment, and the line connecting the light source receiving component to the intersection point is defined as the second line segment. The first line segment and the second line segment cooperate to divide the smoke sensing space into a close area and a departing area, wherein the area corresponding to the angle less than 180° formed by the first line segment and the second line segment is the close area, and the angle greater than 180° formed by the first line segment and the second line segment corresponds to the departing area.

[0047] The first obstacle 5 is arranged in the above-mentioned departure area, and the first obstacle 5 divides the departure area into a first divided area 22 close to the light source emitting assembly and a second divided area 23 close to the light source receiving assembly. The first obstacle 5 is configured to reflect part of the light output by the light source emitting assembly and be absorbed by the wall of the first divided area 22, and the first obstacle 5 is configured to absorb the diffusely reflected light in the second divided area 23.

[0048] In this embodiment, a smoke sensing space is formed by setting a base and a housing 1, a temperature sensor 4 is set in the base, and a smoke channel is set in the base to form a smoke detection area 24 in the smoke sensing space. A light source emitting component and a light source receiving component are set in the smoke sensing space, and the path intersection point is in the smoke detection area 24. When smoke enters the smoke detection area 24 through the smoke channel, the light output by the light source emitting component is refracted by smoke particles and received by the light source receiving component, thereby generating an electrical signal. A first obstacle 5 is further set, and the first obstacle 5 is configured to refract or reflect the light that can enter the light source receiving component through the side wall of the smoke sensing space, so that this part of the light can be absorbed by the first divided area 22 formed by the first obstacle 5 and the light source emitting component. This avoids the situation where the light is diffusely reflected in the side wall of the smoke sensing space and is received by the light source receiving component, resulting in unstable data in the initial state, and solves the problem of easy false alarms in the existing smoke and temperature sensing composite detectors.

[0049] The specific structure of the smoke and temperature composite fire detector for the energy storage power station of this embodiment is further described below:

[0050] In this embodiment, the smoke and temperature composite fire detector for the energy storage power station may further include a second obstacle 6. The second obstacle 6 is arranged in the above-mentioned proximity area and extends to the edge of the smoke detection area 24 (and is located between the light source emitting component and the light source receiving component), and is used to block the light output by the light source emitting component from directly entering the light source receiving component, thereby avoiding instability of the initial state data.

[0051] In this embodiment, the above-mentioned light source emitting assembly may specifically include a first mounting frame and a light source emitting tube 9 .

[0052] The first mounting frame is disposed on the top surface of the base, and the first mounting frame is configured to form a first mounting area for mounting the light emitting tube 9 and a light outlet 25 connected to the smoke sensing space. The light emitting tube 9 is mounted in the first mounting area (the light emitting tube 9 may specifically include a emitting tube body and a emitting tube fixing frame, the emitting tube body is fixedly mounted in the emitting tube fixing frame, and the emitting tube fixing frame is embedded in the first mounting area formed by the first mounting frame).

[0053] Specifically, the first mounting frame includes a first mounting plate 12 and a second mounting plate 14. The first mounting plate 12 and the second mounting plate 14 are installed on the base in parallel and at intervals, and the first mounting plate 12 is located in the close area and the second mounting plate 14 is located in the away area.

[0054] A first extension plate 13 is provided on the side of the first mounting plate 12 facing the smoke detection area 24, and a second extension plate 15 is provided on the side of the second mounting plate 14 facing the smoke detection area 24. The first extension plate 13 and the second extension plate 15 can be arranged in the same plane, and the extension directions are opposite, so as to cooperate with the first mounting plate 12 and the second mounting plate 14 to limit the installation area of ​​the transmitting tube fixing frame; and the interval between the first extension plate 13 and the second extension plate 15 can be arranged to limit the above-mentioned light outlet 25.

[0055] Furthermore, a first support plate 20 may be provided on the second mounting plate 14, the first support plate 20 being connected to the side of the second mounting plate 14 away from the second extension plate 15, and the first support plate 20 is used to be connected to the base to form the side wall of the smoke sensing space. The first obstacle 5 may also be provided to be connected to the first support plate 20, thereby forming a first partition area 22 between the two.

[0056] In this embodiment, the smoke and temperature composite fire detector for the energy storage power station also includes a third obstacle 7, which is arranged on the top surface of the base, and the first end of the third obstacle 7 is connected to the second obstacle 6, and the other end of the third obstacle 7 is arranged corresponding to the first extension plate 13, which is used to support and strengthen the second obstacle 6 and absorb the diffuse reflected light inside the smoke sensing space as much as possible.

[0057] In this embodiment, the light source receiving assembly may specifically include a second mounting frame and a light source receiving tube 10 .

[0058] The second mounting frame is disposed on the base, and the second mounting frame is configured to form a second mounting area for mounting the light source receiving tube 10 and a light inlet 26 connected to the smoke sensing space. The light source receiving tube 10 is mounted in the second mounting area, and the convex lens 11 is mounted in the second mounting area and is located on the light source receiving path of the light source receiving tube 10 (the light source receiving tube 10 may specifically include a receiving tube body and a receiving tube fixing frame, the receiving tube body is fixedly mounted in the receiving tube fixing frame, the convex lens 11 is also fixedly mounted in the receiving tube fixing frame, and the receiving tube fixing frame is embedded in the second mounting area formed by the second mounting frame).

[0059] Specifically, the second mounting frame includes a third mounting plate 16 and a fourth mounting plate 18. The third mounting plate 16 and the fourth mounting plate 18 are installed on the base in parallel and at intervals, and the third mounting plate 16 is located in the close area and the fourth mounting plate 18 is located in the away area.

[0060] A third extension plate 17 is provided on the side of the third mounting plate 16 facing the smoke detection area 24, and a fourth extension plate 19 is provided on the side of the fourth mounting plate 18 facing the smoke detection area 24. The third extension plate 17 and the fourth extension plate 19 can be arranged in the same plane with opposite extension directions, so as to cooperate with the third mounting plate 16 and the fourth mounting plate 18 to limit the installation area of ​​the receiving tube fixing frame; and the interval between the third extension plate 17 and the fourth extension plate 19 can be arranged to limit the above-mentioned light entrance 26.

[0061] Furthermore, a second support plate 21 may be provided on the fourth mounting plate 18, the second support plate 21 being connected to a side of the fourth mounting plate 18 away from the fourth extension plate 19, and the second support plate 21 is used to be connected to the side wall of the base to form the above-mentioned smoke sensing space. The above-mentioned first obstacle 5, the second support plate 21, a part of the first support plate 20 and the corresponding side wall of the base cooperate to form the above-mentioned second divided area 23.

[0062] In this embodiment, the smoke and temperature composite fire detector for the energy storage power station may also include a fourth obstacle 8, which is arranged on the base, and the first end of the fourth obstacle 8 is connected to the second obstacle 6, and the other end of the fourth obstacle 8 is arranged corresponding to the third extension plate 17, which is used to support and strengthen the second obstacle 6, and can absorb the diffuse reflected light inside the smoke sensing space as much as possible.

[0063] In this embodiment, the smoke sensing space may be configured to be approximately a regular hexahedron (whose horizontal cross section is a rectangle), and the first mounting bracket and the second mounting bracket may be configured to correspond to two coplanar side edges of the regular hexahedron.

[0064] In this embodiment, the above-mentioned base may specifically include a bottom shell 3 and a middle shell 2. The middle shell 2 is installed on the bottom shell 3 and cooperates to form a temperature sensing installation space, and a temperature sensing installation port connected to the temperature sensing installation space is opened on the bottom shell 3. The temperature sensor 4 is installed in the temperature sensing installation space, and the temperature measuring end of the temperature sensor 4 extends out of the temperature sensing installation port (specifically, a PCB board can be set on the bottom surface of the middle shell 2, which can facilitate the installation of components such as the temperature sensor 4). The middle shell 2 cooperates with the outer shell 1 to form the above-mentioned smoke sensing space. The temperature sensor 4 can be specifically a temperature probe, and can be arranged on the opposite side relative to the light source emission tube 9, so that the ambient temperature can be detected from multiple angles.

[0065] The middle shell 2 can be installed on the bottom shell 3 by bolts, and a hook can be provided on the bottom shell 3 and a slot can be provided on the outer shell 1 to achieve a snap connection between the two.

[0066] Furthermore, the bottom shell 3 is provided with a bottom shell smoke channel and a hollow cylinder 301 (i.e., a through hole and a central through cylinder connected thereto) connected to the bottom shell smoke channel. The middle shell 2 is provided with a middle shell smoke channel, and the hollow cylinder 301 is configured to penetrate the middle shell smoke channel and connect to the smoke detection space. The outer shell 1 is provided with an outer shell smoke channel corresponding to the smoke detection space, thereby forming a smoke flow path.

[0067] In this embodiment, after the smoke and temperature composite fire detector for energy storage power station is completely assembled (initial state), the upper and lower parts of the light source receiving tube 10 and the convex lens 11 are sealed, leaving only the above-mentioned light source receiving path. The emission angle of the light source emitting tube 9 can be set to 60 degrees, and the light emitted by it is blocked by the first obstacle 5 and the second obstacle 6, etc., and then absorbed, thereby ensuring that the light is not received by the light source receiving tube 10.

[0068] The above is a detailed description of the embodiments of the present invention in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, if these changes fall within the scope of the claims of the present invention and their equivalents, they still fall within the protection scope of the present invention.

Claims

1. A smoke and temperature composite fire detector for energy storage power station, characterized in that: include: A base, wherein a temperature sensor is disposed in the base, and at least part of a temperature measuring end of the temperature sensor extends out of the base; A housing, covering the base and forming a smoke sensing space; The base is provided with a smoke passage penetrating to the smoke sensing space, and the area formed by the smoke passage extending in the smoke sensing space is the smoke detection area; A light source transmitting component and a light source receiving component are provided in the smoke sensing space, and a light source output path of the light source transmitting component and a light source receiving path of the light source receiving component are configured to intersect in the smoke detection area, and the intersection point is defined as an intersection point; Define the line connecting the light source emitting component to the intersection as a first line segment, and the line connecting the light source receiving component to the intersection as a second line segment, wherein the first line segment and the second line segment cooperate to divide the smoke sensing space into a close area and a divergent area, wherein the area corresponding to the angle less than 180° formed by the first line segment and the second line segment is the close area, and the angle greater than 180° formed by the first line segment and the second line segment corresponds to the divergent area; It also includes a first obstacle, which is arranged in the departure area, and the first obstacle divides the departure area into a first divided area close to the light source emitting component and a second divided area close to the light source receiving component; the first obstacle is configured to reflect part of the light output by the light source emitting component and be absorbed by the wall of the first divided area, and the first obstacle is configured to absorb the diffusely reflected light in the second divided area.

2. The smoke and temperature composite fire detector for energy storage power station according to claim 1, characterized in that: Also included is a second obstacle; The second obstacle is arranged in the proximity area and extends to the edge of the smoke detection area, and is used to block the light output by the light source emitting component from directly entering the light source receiving component.

3. The smoke and temperature composite fire detector for energy storage power station according to claim 2, characterized in that: The light source emitting assembly comprises a first mounting frame and a light source emitting tube; The first mounting frame is disposed on the base, and the first mounting frame is configured to form a first mounting area for mounting the light source emitting tube and a light outlet connected to the smoke sensing space; The light source emitting tube is installed in the first installation area.

4. The smoke and temperature composite fire detector for energy storage power station according to claim 3, characterized in that: The first mounting frame includes a first mounting plate and a second mounting plate; The first mounting plate and the second mounting plate are installed on the base in parallel and at intervals, and the first mounting plate is located in the approaching area, and the second mounting plate is located in the departing area; A first extension plate is disposed on a side of the first mounting plate facing the smoke detection area, and a second extension plate is disposed on a side of the second mounting plate facing the smoke detection area. The interval between the first extension plate and the second extension plate is the light outlet.

5. The smoke and temperature composite fire detector for energy storage power station according to claim 4, characterized in that: It also includes a third obstacle, which is arranged on the base, and a first end of the third obstacle is connected to the second obstacle, and the other end of the third obstacle is arranged corresponding to the first extension plate.

6. The smoke and temperature composite fire detector for energy storage power station according to claim 2, characterized in that: The light source receiving assembly includes a second mounting frame, a light source receiving tube and a convex lens; The second mounting frame is disposed on the base, and the second mounting frame is configured to form a second mounting area for mounting the light source receiving tube and a light inlet communicating with the smoke sensing space; The light source receiving tube is installed in the second installation area, and the convex lens is installed in the second installation area and is located on the light source receiving path of the light source receiving tube.

7. The smoke and temperature composite fire detector for energy storage power station according to claim 6, characterized in that: The second mounting frame includes a third mounting plate and a fourth mounting plate; The third mounting plate and the fourth mounting plate are installed on the base in parallel and at intervals, and the third mounting plate is located in the approaching area, and the fourth mounting plate is located in the departing area; A third extension plate is disposed on a side of the third mounting plate facing the smoke detection area, a fourth extension plate is disposed on a side of the fourth mounting plate facing the smoke detection area, and a space between the third extension plate and the fourth extension plate is the light entrance.

8. The smoke and temperature composite fire detector for energy storage power station according to claim 7, characterized in that: It also includes a fourth obstacle, which is arranged on the base, and a first end of the fourth obstacle is connected to the second obstacle, and the other end of the fourth obstacle is arranged corresponding to the third extension plate.

9. The smoke and temperature composite fire detector for energy storage power station according to claim 1, characterized in that: The base includes a bottom shell and a middle shell; The middle shell is installed on the bottom shell and cooperates to form a temperature sensing installation space, and a temperature sensing installation opening connected to the temperature sensing installation space is opened on the bottom shell, the temperature sensor is installed in the temperature sensing installation space, and the temperature measuring end of the temperature sensor extends out of the temperature sensing installation opening; The middle shell cooperates with the outer shell to form a smoke sensing space.

10. The smoke and temperature composite fire detector for energy storage power station according to claim 9, characterized in that: The bottom shell is provided with a bottom shell smoke passage and a hollow cylinder connected to the bottom shell smoke passage; The middle shell is provided with a middle shell smoke passage, and the hollow cylinder is configured to penetrate the middle shell smoke passage and be connected to the smoke detection area; the outer shell is provided with an outer shell smoke passage corresponding to the smoke detection area.