Pyrolysis particle detector

Abstract

The utility model discloses a pyrolytic particle detector, which comprises a mounting seat, a pyrolytic particle detector, a pyrolytic particle detector and a detector body, the elastic clamping assemblies are arranged on the two sides in the mounting groove; a connecting base is fixedly arranged at the top of the shell, clamping holes are formed in the two sides of the connecting base, an embedding groove is formed in the bottom of the shell, air inlet holes are evenly distributed in the bottom of the shell, and air outlet holes are evenly distributed in the two sides of the shell; the unlocking assembly is arranged in the caulking groove and extends into the connecting seat; and the pyrolysis particle detection mechanism is fixedly arranged in the shell. The pyrolytic particle detector is convenient to install and replace, the application convenience of the pyrolytic particle detector is improved, the early characteristics of a fire disaster can be accurately detected, and the safety of a power distribution cabinet is ensured.

Description

Technical Field

[0001] This utility model relates to the field of fire detection technology, and in particular to a pyrolysis particle detector. Background Technology

[0002] The heat generated in the early stages of a fire causes the outer plastic sheath of electrical wires to decompose, producing pyrolysis particles. Pyrolysis particle detectors identify these particles to determine if a fire is imminent, thus detecting early signs of electrical fires. Electrical fires manifest as conductor heating. In low-voltage distribution cabinets, the main heat-generating components in electrical faults are wires and protective devices. Pyrolysis particle detectors can effectively identify the pyrolysis particles produced by the decomposition of heat within the distribution cabinet, ensuring its safety. However, the limited space within distribution cabinets makes the installation and replacement of pyrolysis particle detectors inconvenient. Utility Model Content

[0003] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a pyrolysis particle detector that is easy to install and replace, improves its ease of application, can accurately detect early signs of fire, and ensures the safety of the distribution cabinet.

[0004] This utility model provides a pyrolysis particle detector, comprising:

[0005] The mounting base has a mounting groove at its bottom;

[0006] Flexible snap-fit ​​components are disposed on both sides within the mounting groove;

[0007] The housing has a connecting seat fixedly installed on its top. The connecting seat can be detachably embedded in the mounting groove. The connecting seat has snap-fit ​​holes on both sides corresponding to the elastic snap-fit ​​component. The bottom of the housing is provided with a groove directly below the connecting seat. The bottom of the housing has air inlets evenly distributed, and the sides have air outlets evenly distributed.

[0008] An unlocking component, disposed within the groove and extending into the connector, is used to push the resilient snap-fit ​​component out of the snap-fit ​​hole;

[0009] The pyrolysis particle detection mechanism is fixedly installed inside the housing.

[0010] Furthermore, the mounting base is symmetrically provided with connecting plates on both sides, and the connecting plates are provided with mounting holes, each of which is provided with screws.

[0011] Furthermore, the inner diameter of the bottom end of the mounting groove gradually increases from top to bottom to form a guide opening.

[0012] Furthermore, the elastic snap-fit ​​assembly includes a snap-fit ​​block. The mounting base has first mounting cavities symmetrically arranged on both sides of the mounting groove. The first mounting cavities are connected to the mounting groove through a first through hole. The snap-fit ​​block is disposed in the first through hole. One end of the snap-fit ​​block extends into the mounting groove as a first oblique pressing head, and the other end extends into the first mounting cavity and is fixedly connected to a limiting plate. A first support spring is disposed in the first mounting cavity and supported on the limiting plate.

[0013] Furthermore, the unlocking component includes a pull block disposed within the groove, a pull ring disposed below the pull block, one side of the pull ring being rotatably connected to the pull block with tension, a second mounting cavity disposed within the connecting seat, the two sides of the second mounting cavity respectively communicating with the corresponding snap-fit ​​holes through second through holes, the inner diameter of the second through holes being larger than the inner diameter of the snap-fit ​​holes, a compression cone disposed within the second mounting cavity with an outer diameter gradually decreasing from top to bottom, the bottom end of the compression cone being fixedly connected to the pull block through a connecting rod, a second support spring being sleeved on the connecting rod between the bottom end of the compression cone and the bottom of the second mounting cavity, a push rod disposed within the second through hole, one end of the push rod extending into the snap-fit ​​hole, the other end forming a second oblique compression head adapted to the compression cone and abutting against the outer wall of the compression cone, a limiting support ring being fixedly sleeved on the push rod, and a third support spring being sleeved on the push rod between the limiting support ring and the snap-fit ​​hole.

[0014] Furthermore, the pyrolysis particle detection mechanism includes a PCB board fixedly disposed within the housing. The PCB board is provided with a main control chip, a pyrolysis particle sensor, and a wireless communication module. Both the pyrolysis particle sensor and the wireless communication module are electrically connected to the main control chip.

[0015] Furthermore, a temperature sensor is provided on the PCB board, and fans are provided on both sides of the PCB board corresponding to the air outlets. Both the temperature sensor and the fans are electrically connected to the main control chip.

[0016] Furthermore, one side of the housing is provided with a communication interface and a power supply interface that are electrically connected to the main control chip; the communication interface is connected to the hot gas melt fire extinguishing device via a communication cable.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] (1) The pyrolysis particle detector of this utility model is provided with a mounting base, a flexible snap-fit ​​component, and an unlocking component. The mounting base is installed in the distribution cabinet at the factory. The pyrolysis particle detector is installed by directly inserting the connecting base of the housing into the mounting groove at the bottom of the mounting base and inserting the flexible snap-fit ​​component into the snap-fit ​​hole on the connecting base. When replacing the pyrolysis particle detector, the flexible snap-fit ​​component is pushed out of the snap-fit ​​hole using the unlocking component, allowing the pyrolysis particle detector to be removed and replaced. The installation and replacement of the pyrolysis particle detector are convenient, improving its ease of use.

[0019] (2) The pyrolysis particle detector of this utility model is equipped with a pyrolysis particle detection mechanism. By identifying pyrolysis particles, it can accurately detect the early characteristics of a fire, thus ensuring the safety of the power distribution cabinet.

[0020] It should be understood that the description in this utility model description section is not intended to limit the key or essential features of the embodiments of this utility model, nor is it intended to restrict the scope of this utility model. Other features of this utility model will become readily apparent from the following description. Attached Figure Description

[0021] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0022] Figure 1 This is a schematic diagram of the structure of a pyrolysis particle detector;

[0023] Figure 2 For Figure 1 Enlarged structural diagram at point A;

[0024] Figure 3 This is a schematic diagram of the pyrolysis particle detector viewed from below.

[0025] The diagram shows: 1. Mounting base; 2. Flexible snap-fit ​​assembly; 3. Housing; 4. Unlocking assembly; 5. Pyrolysis particle detection mechanism; 6. Temperature sensor; 7. Fan;

[0026] 11. Mounting slot; 12. Connecting plate; 13. Screw; 14. Guide opening; 15. First mounting cavity; 16. First through hole;

[0027] 21. Locking block; 22. First inclined extrusion head; 23. Limiting plate; 24. First support spring;

[0028] 31. Connecting seat; 32. Snap-fit ​​hole; 33. Insert groove; 34. Air inlet; 35. Air outlet; 36. Second mounting cavity; 37. Second through hole;

[0029] 41. Pull block; 42. Pull ring; 43. Extrusion cone; 44. Connecting rod; 45. Second support spring; 46. Push rod; 47. Second inclined extrusion head; 48. Limiting support ring; 49. Third support spring;

[0030] 51. PCB board; 52. Main control chip; 53. Pyrolysis particle sensor; 54. Wireless communication module. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0032] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0033] Please refer to Figures 1-3 An embodiment of this utility model provides a pyrolysis particle detector, comprising:

[0034] Mounting base 1, with a mounting groove 11 at its bottom;

[0035] The flexible snap-fit ​​component 2 is disposed on both sides within the mounting slot 11;

[0036] The housing 3 has a connecting seat 31 fixedly installed on its top. The connecting seat 31 is detachably embedded in the mounting groove 11. The connecting seat 31 has snap-fit ​​holes 32 on both sides corresponding to the elastic snap-fit ​​component 2. The bottom of the housing 3 is provided with a groove 33 directly below the connecting seat 31. The bottom of the housing 3 has air inlets 34 evenly distributed, and the sides have air outlets 35 evenly distributed.

[0037] Unlocking component 4 is set in the groove 33 and extends into the connector 31 to push the elastic snap-fit ​​component 2 out of the snap-fit ​​hole 32.

[0038] The pyrolysis particle detection mechanism 5 is fixedly installed inside the housing 3.

[0039] In this embodiment, the mounting base 1 is directly installed into the factory-installed distribution cabinet and fixed by adhesive or bolts. When installing the housing 3, the connecting base 31 at its top is directly inserted into the mounting groove 11 at the bottom of the mounting base 1, and the elastic snap-fit ​​component 2 is inserted into the snap-fit ​​hole 32 on the connecting base 31, completing the installation. When it is necessary to disassemble or replace the pyrolysis particle detector, the elastic snap-fit ​​component 2 is pushed out of the snap-fit ​​hole 32 by the unlocking component 4, allowing the pyrolysis particle detector to be removed and replaced. The pyrolysis particle detector of this application is easy to install and replace, improving its ease of application. It can also accurately detect early signs of fire, ensuring the safety of the distribution cabinet.

[0040] In a preferred embodiment, such as Figure 1 As shown, the mounting base 1 has symmetrical connecting plates 12 on both sides. The connecting plates 12 have mounting holes, and screws 13 are installed in each mounting hole. The mounting base 1 is assembled into the distribution box by the screws 13, and the structure is stable.

[0041] In a preferred embodiment, such as Figure 2 As shown, the inner diameter of the bottom of the mounting groove 11 gradually increases from top to bottom to form a guide opening 14, which facilitates the quick and accurate insertion of the connector 31 into the mounting groove 11.

[0042] In a preferred embodiment, such as Figure 1 and Figure 2 As shown, the elastic snap-fit ​​assembly 2 includes a snap-fit ​​block 21. The mounting base 1 has first mounting cavities 15 symmetrically arranged on both sides of the mounting groove 11. The first mounting cavities 15 are connected to the mounting groove 11 through a first through hole 16. The snap-fit ​​block 21 is provided in the first through hole 16. One end of the snap-fit ​​block 21 extends into the mounting groove 11 as a first inclined pressing head 22, and the other end extends into the first mounting cavity 15 and is fixedly connected to a limiting plate 23. A first support spring 24 is provided in the first mounting cavity 15 and supported on the limiting plate 23.

[0043] In this embodiment, after the connecting seat 31 is inserted into the mounting groove 11, it presses the first inclined pressing head 22, causing it to retract into the first through hole 16. When the first inclined pressing head 22 is aligned with the snap-fit ​​hole 32, under the action of the first support spring 24, the first inclined pressing head 22 is inserted into the snap-fit ​​hole 32 to complete the snap-fit. The operation is convenient and the connection is stable. The first through hole 16 is rectangular and fits the snap-fit ​​block 21, preventing the first inclined pressing head 22 from rotating and affecting the snap-fit ​​installation.

[0044] In a preferred embodiment, such as Figure 1 and Figure 2As shown, the unlocking component 4 includes a pull block 41 disposed in the groove 33, a pull ring 42 disposed below the pull block 41, one side of the pull ring 42 being rotatably connected to the pull block 41 with tension, a second mounting cavity 36 disposed in the connecting seat 31, the two sides of the second mounting cavity 36 being respectively connected to the corresponding snap-fit ​​holes 32 through second through holes 37, the inner diameter of the second through holes 37 being larger than the inner diameter of the snap-fit ​​holes 32, a compression cone 43 with an outer diameter gradually decreasing from top to bottom disposed in the second mounting cavity 36, the bottom end of the compression cone 43 being connected to the connecting rod 4 4 is fixedly connected to the pull block 41. A second support spring 45 is sleeved on the connecting rod 44 between the bottom end of the extrusion cone 43 and the bottom of the second mounting cavity 36. A push rod 46 is provided in the second through hole 37. One end of the push rod 46 extends into the snap-fit ​​hole 32, and the other end forms a second inclined extrusion head 47 adapted to the extrusion cone 43 and abuts against the outer wall of the extrusion cone 43. A limiting support ring 48 is fixedly sleeved on the push rod 46. A third support spring 49 is sleeved on the push rod 46 between the limiting support ring 48 and the snap-fit ​​hole 32.

[0045] In this embodiment, the pull ring 42 is attached to the pull block 41 in the normal state, reducing space occupation. When disassembling the housing 3, first rotate the pull ring 42 to make it stand up, and then pull the pull block 41 downward through the pull ring 42. The pull block 41 drives the extrusion cone 43 to move down through the connecting rod 44. The extrusion cone 43 pushes the push rod 46 through the second inclined extrusion head 47. The push rod 46 pushes the locking block 21 out of the locking hole 32 to complete the unlocking. At this time, the connecting seat 31 can be pulled out from the mounting groove 11, thereby tilting the housing 3 downward, which is convenient to operate.

[0046] The push rod 46 is rectangular and fits the snap-fit ​​hole 32 to prevent the second inclined extrusion head 47 from rotating and affecting the transmission and engagement between the extrusion cone 43 and the second inclined extrusion head 47.

[0047] The limiting support ring 48 supports the third support spring 49 while also limiting its position, so that the push rod 46 can move to the opening of the snap-fit ​​hole 32 at most, just enough to push the snap-fit ​​block 21 out of the snap-fit ​​hole 32, without inserting it into the first through hole 16 and affecting the removal of the connecting seat 31.

[0048] In a preferred embodiment, such as Figure 1 As shown, the pyrolysis particle detection mechanism 5 includes a PCB board 51 fixedly installed inside the housing 3. The PCB board 51 is equipped with a main control chip 52, a pyrolysis particle sensor 53 and a wireless communication module 54. The pyrolysis particle sensor 53 and the wireless communication module 54 are both electrically connected to the main control chip 52.

[0049] In this embodiment, when the pyrolysis particle sensor 53 detects pyrolysis particles, it sends a signal to the main control chip 52. The main control chip 52 then sends an alarm message to a mobile terminal (phone or tablet) or computer via the wireless communication module 54. Preferably, a buzzer is installed on the PCB board 51 for alarm sounding.

[0050] In a preferred embodiment, such as Figure 1 As shown, a temperature sensor 6 is provided on the PCB board 51, and a fan 7 is provided on both sides of the PCB board 51 corresponding to the air outlet 35. Both the temperature sensor 6 and the fan 7 are electrically connected to the main control chip 52.

[0051] In this embodiment, when the temperature sensor 6 detects that the temperature inside the housing 3 is too high, it sends a signal to the main control chip 52, which then controls the fan 7 to turn on for heat dissipation. The fan 7 also facilitates the rapid entry of gas from the distribution box into the housing 3, ensuring that the pyrolysis particle sensor 53 identifies pyrolysis particles immediately and issues an alarm in a timely manner.

[0052] In a preferred embodiment, a communication interface and a power supply interface electrically connected to the main control chip 52 are provided on one side of the housing 3; the communication interface is connected to the hot gas melt fire extinguishing device via a communication cable.

[0053] In this embodiment, power is supplied to the various devices inside the housing 3 through a power supply interface. The power supply interface is electrically connected to the main control chip 52 through a step-up / step-down circuit to meet the voltage requirements of different devices. When the detector detects a fire, it controls the hot gas melt fire extinguishing device through the communication interface to extinguish the fire and reduce economic losses.

[0054] In the description of this specification, the terms "connection," "installation," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0055] In the description of this specification, the terms "one embodiment," "some embodiments," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0056] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A pyrolysis particle detector, characterized in that, include: Mounting base (1), with a mounting groove (11) at its bottom; The elastic snap-fit ​​assembly (2) is disposed on both sides within the mounting groove (11); The housing (3) has a connecting seat (31) fixedly installed on its top. The connecting seat (31) can be detachably embedded in the mounting groove (11). The connecting seat (31) has snap-fit ​​holes (32) on both sides corresponding to the elastic snap-fit ​​component (2). The bottom of the housing (3) is provided with a groove (33) directly below the connecting seat (31). The bottom of the housing (3) is evenly distributed with air inlets (34) and the sides are evenly distributed with air outlets (35). Unlocking component (4), disposed in the groove (33) and extending into the connector (31), is used to push the elastic snap-fit ​​component (2) out of the snap-fit ​​hole (32); The pyrolysis particle detection mechanism (5) is fixedly installed inside the housing (3).

2. The pyrolysis particle detector according to claim 1, characterized in that, The mounting base (1) has symmetrical connecting plates (12) on both sides. The connecting plates (12) have mounting holes, and screws (13) are installed in each mounting hole.

3. The pyrolysis particle detector according to claim 1, characterized in that, The inner diameter of the bottom end of the mounting groove (11) gradually increases from top to bottom to form a guide opening (14).

4. The pyrolysis particle detector according to claim 1, characterized in that, The elastic snap-fit ​​assembly (2) includes a snap-fit ​​block (21). The mounting base (1) is provided with first mounting cavities (15) symmetrically arranged on both sides of the mounting groove (11). The first mounting cavity (15) is connected to the mounting groove (11) through a first through hole (16). The snap-fit ​​block (21) is provided in the first through hole (16). One end of the snap-fit ​​block (21) extends into the mounting groove (11) as a first oblique pressing head (22), and the other end extends into the first mounting cavity (15) and is fixedly connected to a limiting plate (23). A first support spring (24) is provided in the first mounting cavity (15) and supported on the limiting plate (23).

5. The pyrolysis particle detector according to claim 1, characterized in that, The unlocking component (4) includes a pull block (41) disposed in the groove (33), a pull ring (42) disposed below the pull block (41), one side of the pull ring (42) being rotatably connected to the pull block (41) with tension, a second mounting cavity (36) disposed in the connecting seat (31), the two sides of the second mounting cavity (36) being respectively connected to the snap-fit ​​hole (32) through a second through hole (37), the inner diameter of the second through hole (37) being larger than the inner diameter of the snap-fit ​​hole (32), a compression cone (43) with an outer diameter gradually decreasing from top to bottom disposed in the second mounting cavity (36), the bottom end of the compression cone (43) being connected by a connecting rod (44) The connecting rod (44) is fixedly connected to the pull block (41). A second support spring (45) is sleeved on the connecting rod (44) between the bottom end of the extrusion cone (43) and the bottom of the second mounting cavity (36). A push rod (46) is provided in the second through hole (37). One end of the push rod (46) extends into the snap-fit ​​hole (32), and the other end forms a second oblique extrusion head (47) that is adapted to the extrusion cone (43) and abuts against the outer wall of the extrusion cone (43). A limiting support ring (48) is fixedly sleeved on the push rod (46). A third support spring (49) is sleeved on the push rod (46) between the limiting support ring (48) and the snap-fit ​​hole (32).

6. The pyrolysis particle detector according to claim 1, characterized in that, The pyrolysis particle detection mechanism (5) includes a PCB board (51) fixedly disposed in the housing (3). The PCB board (51) is provided with a main control chip (52), a pyrolysis particle sensor (53) and a wireless communication module (54). The pyrolysis particle sensor (53) and the wireless communication module (54) are both electrically connected to the main control chip (52).

7. The pyrolysis particle detector according to claim 6, characterized in that, A temperature sensor (6) is provided on the PCB board (51), and a fan (7) is provided on both sides of the PCB board (51) corresponding to the air outlet (35). The temperature sensor (6) and the fan (7) are both electrically connected to the main control chip (52).

8. The pyrolysis particle detector according to claim 6, characterized in that, One side of the housing (3) is provided with a communication interface and a power supply interface that are electrically connected to the main control chip (52); the communication interface is connected to the hot gas melt fire extinguishing device through a communication cable.

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