Fire extinguishing protection device for photovoltaic equipment

Abstract

The utility model relates to the technical field of fire extinguishing protection, and discloses a fire extinguishing protection device for photovoltaic equipment, which comprises an equipment box, a shielding assembly and a fire extinguishing assembly, the equipment box is used for setting circuit components; heat dissipation holes penetrating through the wall thickness are formed in one side wall of the equipment box; the shielding assembly comprises a mounting block, a screw rod, a connecting rod, a baffle and a motor; the mounting block and the motor are fixedly mounted on the other outer side wall of the equipment box; the screw rod rotationally penetrates through the mounting block, and an output shaft of the motor is coaxially connected to the screw rod; the connecting rod is L-shaped; the other end of the connecting rod is connected to the baffle plate; the baffle plate is slidably attached to the outer wall where the heat dissipation holes are located. The motor is used for driving the screw to rotate so as to drive the baffle to move, and therefore the heat dissipation holes are opened or shielded. The fire extinguishing assembly is used for spraying a fire extinguishing agent into the equipment box. According to the technical scheme of the utility model, the heat dissipation holes can be shielded when a fire is on fire, and air entering the equipment box is reduced, so that fire spreading is slowed down, and fire can be extinguished.

Description

Technical Field

[0001] This utility model relates to the field of fire extinguishing and protection technology, specifically to a fire extinguishing and protection device for photovoltaic equipment. Background Technology

[0002] Photovoltaic equipment refers to various hardware components and technical devices used in solar photovoltaic power generation systems, typically including inverters, circuit breakers, and terminal blocks. Since many photovoltaic devices are installed outdoors, harsh environments accelerate material aging, affecting equipment performance and increasing fire hazards. To ensure the safe and reliable operation of photovoltaic power generation systems, and to facilitate installation, maintenance, and management, these devices are usually housed in equipment boxes and sealed with fire-retardant putty at wiring connections to slow the spread of fire in the event of a fire. However, photovoltaic systems generally have a long service life, and the fire-retardant putty is prone to aging, cracking, and breakage after prolonged use. It also tends to fail when exposed to moisture, and its adhesion is poor after drying, leading to detachment and ineffective protection. Therefore, this invention proposes a fire extinguishing and protection device for photovoltaic equipment to improve its fire protection capabilities. Utility Model Content

[0003] The main purpose of this invention is to provide a fire extinguishing and protection device for photovoltaic equipment, so as to improve the fire protection capability of photovoltaic equipment.

[0004] To achieve the above objectives, the fire extinguishing and protection device for photovoltaic equipment proposed in this utility model includes an equipment box, a shielding component, and a fire extinguishing component. The equipment box is used to house circuit components. A heat dissipation hole penetrating the wall thickness is opened on one side wall of the equipment box. The shielding component includes a mounting block, a screw, a connecting rod, a baffle, and a motor. The mounting block and the motor are both fixedly installed on another outer side wall of the equipment box that is perpendicular to the side wall where the heat dissipation hole is located. The screw rotatably passes through the mounting block, and the output shaft of the motor is coaxially connected to the screw. The connecting rod is L-shaped. One end of the connecting rod is threaded onto the screw, and the other end is connected to the baffle. The baffle slidably fits against the outer wall where the heat dissipation hole is located. The motor is used to drive the screw to rotate, thereby driving the baffle to move, thereby opening or shielding the heat dissipation hole. The fire extinguishing component is used to spray fire extinguishing agent into the equipment box.

[0005] Preferably, the mounting block includes a first mounting block and a second mounting block facing each other; one end of the screw is rotatably connected to the first mounting block, and the other end is rotatably connected to the second mounting block; the screw is vertically arranged and parallel to the outer wall of the equipment box used for mounting the mounting block.

[0006] Preferably, the shielding assembly further includes a protective shell; the protective shell is fixedly connected to another outer wall of the equipment box that is perpendicular to the side wall where the heat dissipation hole is opened, and the mounting block, the screw and the motor are all located inside the protective shell; one side wall of the protective shell has a through-hole that extends vertically through the wall thickness, and the connecting rod is movably inserted through the through-hole.

[0007] Preferably, the connecting rod includes a first connecting rod, a second connecting rod, and a screw block that are perpendicular to each other; the screw block is threaded onto the screw rod; one end of the first connecting rod is connected to the screw block, and the other end passes through the through-hole and is connected to one end of the second connecting rod; a connecting block is provided on one side of the second connecting rod, and the side of the connecting block opposite to the second connecting rod is connected to the baffle.

[0008] Preferably, a slider is provided on the side of the baffle away from the connecting block, and a vertically extending groove is provided on the side wall of the equipment box where the heat dissipation hole is opened. The slider is slidably disposed in the groove, and the moving direction of the baffle is consistent with the extending direction of the groove.

[0009] Preferably, the heat dissipation holes are elongated and there are multiple heat dissipation holes; there are two sliders, and the two sliders are respectively disposed at both ends of the baffle; there are two sliding grooves, and the sliding grooves correspond one-to-one with the sliders, and the sliders are slidably disposed in the corresponding sliding grooves.

[0010] Preferably, the fire extinguishing assembly includes a fixing member, a fire extinguishing canister, a valve, a connecting pipe, and a nozzle; the fixing member is disposed on the outer side wall of the equipment box opposite to the side wall where the heat dissipation hole is located; the fire extinguishing canister is fixedly disposed on the fixing member; the fire extinguishing canister is filled with fire extinguishing agent; one end of the connecting pipe is connected to the fire extinguishing canister, and the other end passes through the top wall of the equipment box and extends into the inner cavity of the equipment box; a nozzle is disposed at the end of the connecting pipe inside the equipment box; a valve is disposed between the fire extinguishing canister and the connecting pipe.

[0011] Preferably, the equipment box is rotatably connected to a door on the side opposite to the side wall where the protective shell is located, and the door is used to open and close the inner cavity of the equipment box; a first through-hole is provided through the door; a locking block is provided on the equipment box that can pass through the first through-hole; the locking block is provided with a second through-hole, and the second through-hole is used to connect a lock to lock the door.

[0012] Preferably, the equipment box is further provided with an electrical conduit, which passes through the wall of the equipment box, and the cable passes through the electrical conduit in the equipment box.

[0013] Preferably, the fixing member is annular, the fire extinguisher is cylindrical, and the fire extinguisher is fixedly inserted through the fixing member; the number of fixing members is at least two, and the two fixing members are respectively arranged at the upper and lower parts of the fire extinguisher.

[0014] In this invention, the circuit components are housed within an equipment enclosure. This enclosure enhances the protection of the circuit components and prevents the fire from spreading widely in the event of a fire. When the circuit components catch fire, a motor drives a screw to rotate, which in turn moves a baffle to cover the ventilation holes on the equipment enclosure. This baffle prevents outside air from entering the enclosure through the ventilation holes, reducing the amount of oxygen available for combustion and slowing the spread of the fire, thus facilitating its extinguishing. Simultaneously, a fire extinguishing component sprays extinguishing agent into the equipment enclosure to extinguish the fire. Therefore, this invention improves the fire protection capabilities of photovoltaic equipment by reducing the amount of oxygen available for combustion within the equipment enclosure and by spraying extinguishing agent. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1 This is a first-view structural schematic diagram of the fire extinguishing and protection device for photovoltaic equipment according to this utility model.

[0017] Figure 2 This is a schematic diagram of the internal structure of the fire extinguishing and protection device for photovoltaic equipment according to this utility model.

[0018] Figure 3 This is a second-view structural schematic diagram of the fire extinguishing and protection device for photovoltaic equipment according to this utility model.

[0019] Figure 4 This is a schematic diagram of the internal structure of the protective shell of the fire extinguishing and protection device for photovoltaic equipment according to this utility model.

[0020] Explanation of icon numbers:

[0021] 1-Equipment box; 2-Box door; 3-Locking block; 4-Circuit assembly; 5-Electrical conduit; 6-Heat dissipation hole; 7-Shielding assembly; 71-Protective shell; 72-First mounting block; 73-Screw; 74-Screw block; 75-First connecting rod; 76-Second connecting rod; 77-Connecting block; 78-Baffle; 79-Motor; 710-Second mounting block; 711-Pass-through port; 712-Slide groove; 713-Slider; 8-Fixed component; 9-Fire extinguisher; 10-Valve; 11-Receiver; 12-Connecting pipe; 13-Nozzle; 14-Temperature alarm.

[0022] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0025] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean 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 utility model according to the specific circumstances.

[0027] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0028] This utility model proposes a fire extinguishing and protection device for photovoltaic equipment.

[0029] Please refer to Figures 1 to 4 The fire extinguishing and protection device for photovoltaic equipment includes an equipment box 1, a shielding assembly 7, and a fire extinguishing assembly. The equipment box 1 is used to house the circuit assembly 4. A heat dissipation hole 6 penetrating the wall thickness is opened on one side wall of the equipment box 1. The shielding assembly 7 includes a mounting block, a screw 73, a connecting rod, a baffle 78, and a motor 79. The mounting block and the motor 79 are both fixedly installed on the other outer side wall of the equipment box 1, which is perpendicular to the side wall where the heat dissipation hole 6 is opened. The screw 73 is rotatably inserted through the mounting block, and the output shaft of the motor 79 is coaxially connected to the screw 73. The connecting rod is L-shaped. One end of the connecting rod is threaded onto the screw 73, and the other end is connected to the baffle 78. The baffle 78 slides against the outer wall where the heat dissipation hole 6 is located. The motor 79 is used to drive the screw 73 to rotate, thereby driving the baffle 78 to move, thereby opening or shielding the heat dissipation hole 6. The fire extinguishing assembly is used to spray fire extinguishing agent into the equipment box 1.

[0030] In this invention, the circuit component 4 is housed within the equipment housing 1. The housing enhances the protection of the circuit component and prevents the fire from spreading widely in the event of a fire. When the circuit component 4 catches fire, the motor 79 drives the screw 73 to rotate, thereby moving the baffle 78 to cover the heat dissipation holes 6 on the equipment housing 1. This baffle prevents outside air from entering the housing through the heat dissipation holes 6, reducing the amount of oxygen available for combustion within the housing 1 and slowing the spread of the fire, thus facilitating its extinguishing. Simultaneously, the fire extinguishing assembly sprays extinguishing agent into the equipment housing 1 to extinguish the fire. Therefore, this invention improves the fire protection capability of photovoltaic equipment by reducing the amount of oxygen available for combustion within the equipment housing 1 and by spraying extinguishing agent.

[0031] Furthermore, the side wall of the equipment box 1 is also provided with a motor mounting plate, on which the motor 79 is fixedly mounted. The motor mounting plate is L-shaped.

[0032] Please refer to Figure 4The mounting blocks include a first mounting block 72 and a second mounting block 710 facing each other; one end of a screw 73 is rotatably connected to the first mounting block 72, and the other end is rotatably connected to the second mounting block 710; the screw 73 is vertically arranged and parallel to the outer wall of the equipment housing 1 used to mount the mounting blocks. The first mounting frame 72 and the second mounting block 710 are used to support the screw 73 and ensure the smooth operation of the screw 73.

[0033] Furthermore, a rotating bearing may be embedded in the mounting block, and the two ends of the screw 73 are respectively connected to the rotating bearings in the first mounting block 72 and the second mounting block 710 to reduce rotational resistance.

[0034] Please refer to Figure 3 The shielding assembly 7 also includes a protective housing 71. The protective housing 71 is fixedly connected to another outer wall of the equipment housing 1, perpendicular to the side wall where the heat dissipation hole 6 is located. The mounting block, screw 73, and motor 79 are all located within the protective housing 71. One side wall of the protective housing 71 has a through-hole 711 extending vertically through the wall thickness. The connecting rod movably passes through the through-hole 711. The through-hole 711 restricts the position of the connecting rod, allowing it to slide only within the through-hole 711 and preventing it from rotating with the screw 73. The direction of movement of the connecting rod is consistent with the extension direction of the through-hole 711. The protective housing 71 protects the internal mechanisms of the housing, thereby improving their service life.

[0035] Specifically, the protective shell 71 is a cuboid structure with an internal cavity. One side of the protective shell 71 is an open side without a shell plate, and the open side of the protective shell 71 is detachably connected to the equipment box 1.

[0036] Please follow Figure 3 and Figure 4 The connecting rod includes a first connecting rod 75, a second connecting rod 76, and a screw block 74 that are perpendicular to each other; the screw block 74 is threaded onto the screw rod 73; one end of the first connecting rod 75 is connected to the screw block 74, and the other end passes through the through-hole 711 and is connected to one end of the second connecting rod 76; a connecting block 77 is provided on one side of the second connecting rod 76, and a baffle 78 is connected to the side of the connecting block 77 opposite to the second connecting rod 76.

[0037] In one embodiment, the width of the opening 711 is 2 mm greater than the width of the first connecting rod 75; there are two connecting blocks 77, which are symmetrically arranged at both ends of the baffle 78.

[0038] Furthermore, the first connecting rod 75 is detachably connected to the screw block 74 for easy installation. Specifically, a threaded hole is provided on one outer wall of the screw block 74, and a threaded rod is provided at one end of the first connecting rod 75. The threaded rod is threaded into the threaded hole, so that the first connecting rod 75 is connected to the screw block 74.

[0039] A slider 713 is provided on the side of the baffle 78 away from the connecting block 77. A vertically extending groove 712 is provided on the side wall of the equipment box 1 where the heat dissipation hole 6 is opened. The slider 713 is slidably disposed in the groove 712. The moving direction of the baffle 78 is consistent with the extending direction of the groove 712.

[0040] The arrangement of the slide groove 712 and the slider 713 ensures that the baffle 78 can only move up and down along the slide groove 712, which helps to ensure its smooth operation. Specifically, the opposite side walls of the slider 713 always abut against the opposite inner walls of the slide groove 712.

[0041] The heat dissipation holes 6 are elongated and there are multiple heat dissipation holes 6; there are two sliders 713, and the two sliders 713 are respectively set at both ends of the baffle 78; there are two sliding grooves 712, and the sliding grooves 712 correspond one-to-one with the sliders 713, and the sliders 713 are slidably set in the corresponding sliding grooves 712.

[0042] The elongated shape of the heat dissipation holes helps to increase the heat dissipation area. Specifically, the heat dissipation holes 6 are evenly spaced; the heat dissipation holes 6 are located between the two sliding grooves 712. In one embodiment, the number of heat dissipation holes 6 is four.

[0043] Please refer to Figure 1 and Figure 2 The fire extinguishing assembly includes a fixing member 8, a fire extinguishing tank 9, a valve 10, a connecting pipe 12, and a nozzle 13. The fixing member 8 is located on the outer side wall of the equipment box 1 opposite to the side wall with the heat dissipation hole 6. The fire extinguishing tank 9 is fixedly installed on the fixing member 8. The fire extinguishing tank 9 is filled with extinguishing agent. One end of the connecting pipe 12 is connected to the fire extinguishing tank 9, and the other end passes through the top wall of the equipment box 1 and extends into the inner cavity of the equipment box 1. The nozzle 13 is installed at the end of the connecting pipe 12 inside the equipment box 1. The valve 10 is installed between the fire extinguishing tank 9 and the connecting pipe 12.

[0044] The equipment box 1 is also equipped with a heat sensor alarm 14 for detecting whether a fire has occurred inside the box. A receiver 11 is installed on the valve 10. When the heat sensor alarm 14 detects a fire inside the equipment box 1, it sends information to the monitoring terminal, alerting staff to react promptly. Simultaneously, the heat sensor alarm 14, through the receiver 11, controls the valve 10 to open, activating the fire extinguisher 9 to spray extinguishing agent into the equipment box 1. It also controls the motor 79 to operate, driving the baffle 78 to block the heat dissipation vent 6. The specific types of the heat sensor alarm 14 and receiver 11, as well as the control methods used in this process, are existing technologies and require no further explanation.

[0045] The extinguishing agent in fire extinguisher 9 is perfluorohexanone. Perfluorohexanone is characterized by its high efficiency in extinguishing fires, environmental friendliness, and good electrical insulation properties. It is suitable for extinguishing electrical fires and will not damage electronic equipment.

[0046] Specifically, the fixing member 8 is annular, and the fire extinguishing canister 9 is cylindrical, with the fire extinguishing canister 9 fixedly inserted through the fixing member 8; there are at least two fixing members 8, which are respectively located at the upper and lower parts of the fire extinguishing canister 9. The fixing member 8 can be a pipe clamp. The nozzle 13 is a trumpet-shaped nozzle.

[0047] A door 2 is rotatably connected to the side of the equipment box 1 opposite to the side wall where the protective shell 71 is installed. The door 2 is used to open and close the inner cavity of the equipment box 1. A first through-hole is provided through the door 2. A locking block 3 is provided on the equipment box 1 that can pass through the first through-hole. A second through-hole is provided through the locking block 3. The second through-hole is used to connect a lock to lock the door 2 and prevent unauthorized operation.

[0048] The equipment box 1 is also equipped with an electrical conduit 5, which runs through the wall of the equipment box 1, and the cables run through the equipment box 1 through the electrical conduit 5. Specifically, electrical conduits 5 are installed at both the top and bottom of the equipment box 1.

[0049] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the concept of this utility model and the contents of the specification and drawings of this utility model, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A fire extinguishing and protection device for photovoltaic equipment, characterized in that, The equipment includes an equipment box (1), a shielding assembly (7), and a fire extinguishing assembly; the equipment box (1) is used to house the circuit assembly (4); a heat dissipation hole (6) penetrating the wall thickness is provided on one side wall of the equipment box (1); the shielding assembly (7) includes a mounting block, a screw (73), a connecting rod, a baffle (78), and a motor (79); the mounting block and the motor (79) are both fixedly installed on the other side wall of the equipment box (1) that is perpendicular to the side wall where the heat dissipation hole (6) is located; the screw (73) rotates through the shielding assembly (78). The motor (79) is coaxially connected to the screw (73) and the connecting rod is L-shaped. One end of the connecting rod is threaded onto the screw (73), and the other end is connected to the baffle (78). The baffle (78) slides against the outer wall where the heat dissipation hole (6) is located. The motor (79) is used to drive the screw (73) to rotate, thereby driving the baffle (78) to move, thereby opening or blocking the heat dissipation hole (6). The fire extinguishing assembly is used to spray fire extinguishing agent into the equipment box (1).

2. The fire extinguishing and protection device for photovoltaic equipment according to claim 1, characterized in that, The mounting blocks include a first mounting block (72) and a second mounting block (710) facing each other; one end of the screw (73) is rotatably connected to the first mounting block (72), and the other end is rotatably connected to the second mounting block (710); the screw (73) is vertically arranged, and the screw (73) is parallel to the outer wall of the equipment box (1) used for mounting the mounting blocks.

3. The fire extinguishing and protection device for photovoltaic equipment according to claim 1, characterized in that, The shielding assembly (7) also includes a protective shell (71); the protective shell (71) is fixedly connected to another outer wall of the equipment box (1) that is perpendicular to the side wall where the heat dissipation hole (6) is opened, and the mounting block, the screw (73) and the motor (79) are all located inside the protective shell (71); one side wall of the protective shell (71) is provided with a through-hole (711) that penetrates the wall thickness and extends vertically, and the connecting rod is movably inserted through the through-hole (711).

4. The fire extinguishing and protection device for photovoltaic equipment according to claim 3, characterized in that, The connecting rod includes a first connecting rod (75), a second connecting rod (76), and a screw block (74) that are perpendicular to each other; the screw block (74) is threaded onto the screw rod (73); one end of the first connecting rod (75) is connected to the screw block (74), and the other end passes through the through-hole (711) and is connected to one end of the second connecting rod (76); a connecting block (77) is provided on one side of the second connecting rod (76), and the side of the connecting block (77) facing away from the second connecting rod (76) is connected to the baffle (78).

5. The fire extinguishing and protection device for photovoltaic equipment according to claim 4, characterized in that, A slider (713) is provided on the side of the baffle (78) away from the connecting block (77). A vertically extending groove (712) is provided on the side wall of the equipment box (1) where the heat dissipation hole (6) is opened. The slider (713) is slidably disposed in the groove (712). The moving direction of the baffle (78) is consistent with the extending direction of the groove (712).

6. The fire extinguishing and protection device for photovoltaic equipment according to claim 5, characterized in that, The heat dissipation holes (6) are elongated and there are multiple heat dissipation holes (6); there are two sliders (713), and the two sliders (713) are respectively disposed at both ends of the baffle (78); there are two grooves (712), and the grooves (712) correspond one-to-one with the sliders (713), and the sliders (713) are slidably disposed in the corresponding grooves (712).

7. The fire extinguishing and protection device for photovoltaic equipment according to claim 1, characterized in that, The fire extinguishing assembly includes a fixing member (8), a fire extinguishing canister (9), a valve (10), a connecting pipe (12), and a nozzle (13); the fixing member (8) is disposed on the outer side wall of the equipment box (1) opposite to the side wall where the heat dissipation hole (6) is opened; the fire extinguishing canister (9) is fixedly disposed on the fixing member (8); the fire extinguishing canister (9) is filled with fire extinguishing agent; one end of the connecting pipe (12) is connected to the fire extinguishing canister (9), and the other end passes through the top wall of the equipment box (1) and extends into the inner cavity of the equipment box (1); a nozzle (13) is provided at the end of the connecting pipe (12) inside the equipment box (1); a valve (10) is provided between the fire extinguishing canister (9) and the connecting pipe (12).

8. The fire extinguishing and protection device for photovoltaic equipment according to claim 3, characterized in that, The equipment box (1) is rotatably connected to a door (2) on the side opposite to the side wall where the protective shell (71) is installed. The door (2) is used to open and close the inner cavity of the equipment box (1). A first through-hole is provided through the door (2). A locking block (3) is provided on the equipment box (1) that can pass through the first through-hole. A second through-hole is provided through the locking block (3). The second through-hole is used to connect a lock to lock the door (2).

9. The fire extinguishing and protection device for photovoltaic equipment according to claim 1, characterized in that, The equipment box (1) is also provided with an electrical conduit (5), which passes through the wall of the equipment box (1), and the cable passes through the electrical conduit (5) in the equipment box (1).

10. The fire extinguishing and protection device for photovoltaic equipment according to claim 7, characterized in that, The fixing member (8) is ring-shaped, the fire extinguisher (9) is cylindrical, and the fire extinguisher (9) is fixedly inserted through the fixing member (8); the number of fixing members (8) is at least 2, and the 2 fixing members (8) are respectively set at the upper and lower parts of the fire extinguisher (9).

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