Low-cycle load shedding protection device

Abstract

The utility model relates to the technical field of low-cycle load shedding protection devices, in particular to a low-cycle load shedding protection device which comprises a shell. The heat dissipation mechanism comprises a heat dissipation assembly and an auxiliary assembly; the heat dissipation assembly comprises two connecting shells fixedly connected to the two sides of the shell. In a normal state, the heat dissipation mechanism keeps a good cooling effect on the interior of the shell, the fire condition caused by high temperature is avoided, meanwhile, heat can be transferred to the filler through the heat conduction plate due to rapid temperature rise when the fire occurs, the filler is melted to relieve limiting of the spring, then the stop lever can be contracted to the interior of the mounting shell, and the service life of the mounting shell is prolonged. The stored carbon dioxide can be injected into the shell to dilute internal oxygen under the combined action of the extrusion plate, the connecting rod and the balance weight plate, the fire extinguishing effect is achieved, meanwhile, the problem that subsequent cleaning is difficult when a dry powder fire extinguishing mode is adopted is solved, and the timely fire extinguishing effect is achieved through heat conduction at the abnormal temperature.

Description

Technical Field

[0001] The utility model relates to the technical field of low-frequency load reduction protection devices, in particular to a low-frequency load reduction protection device. Background Art

[0002] The aliases of low-frequency load shedding are low-frequency and low-voltage decoupling device and frequency and voltage emergency control, which are protective devices used to specifically monitor system frequency.

[0003] After searching, a Chinese patent discloses a frequency voltage emergency control device (publication number CN217281658U). This patent technology sets up a monitoring fire extinguishing mechanism to detect the temperature and smoke concentration inside the shell, and uses a dry powder electronic fire extinguisher to extinguish the fire. However, when the temperature is high, the heat dissipation component can discharge the smoke into the shell, affecting the monitoring effect and causing the fire to be extinguished in time. Therefore, the technicians in this field provide a low-frequency load reduction protection device to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the utility model is to provide a low-frequency load reduction protection device in order to solve the above problems, improve the setting of the heat dissipation component to discharge smoke from the inside of the shell, affect the monitoring effect and cause the fire to be untimely.

[0005] The utility model achieves the above-mentioned purpose through the following technical scheme, a low-frequency load reduction protection device, comprising: a shell; a heat dissipation mechanism, the heat dissipation mechanism comprising a heat dissipation component and an auxiliary component; wherein the heat dissipation component comprises two connecting shells fixedly connected to two sides of the shell, a mounting box is detachably provided inside the connecting shell, and ventilation grooves are evenly distributed on the surface of the mounting box, a filter is fixedly connected to the inner wall of the connecting shell, a fan is provided inside the connecting shell between the filter and the mounting box, and through holes are evenly distributed and connected to the inside of the shell on the surface of the connecting shell.

[0006] Preferably, the auxiliary component includes two storage boxes fixedly connected to the inner walls of the two connecting shells respectively, the inner wall of the storage box is slidably connected with an extrusion plate, the bottom of the extrusion plate is fixedly connected with two connecting rods, the lower end of the connecting rod passes through the storage box and is fixedly connected with a counterweight plate.

[0007] Preferably, an air storage cavity is formed between the bottom of the extrusion plate and the inner wall of the storage box, the interior of the air storage cavity is filled with carbon dioxide, and a connecting pipe communicating with the air storage cavity is provided on the surface of the storage box.

[0008] Preferably, the other end of the connecting pipe is connected to the interior of the shell, and a one-way valve is provided inside the connecting pipe.

[0009] Preferably, a mounting shell is fixedly connected to the surface of the storage box, a heat conducting plate is provided inside the outer shell, one end of the heat conducting plate extends to the interior of the mounting shell, a baffle rod is provided inside the storage box and is located between the counterweight plate and the filter, the top of the baffle rod is in contact with the bottom of the counterweight plate, and one end of the baffle rod extends to the interior of the mounting shell and is slidably connected to the inner wall of the mounting shell.

[0010] Preferably, a spring is fixedly connected between one end of the baffle rod and the heat conducting plate, a filler is filled between one end of the baffle rod and the heat conducting plate, and the filler wraps the spring, and the filler is a polyethylene wax material component.

[0011] Preferably, the bottom protrusion of the installation shell forms a connecting portion, and a storage cavity communicating with the interior of the installation shell is provided inside the connecting portion.

[0012] The beneficial effects of the utility model are as follows: under normal conditions, the heat dissipation mechanism maintains a good cooling effect on the interior of the shell, avoiding fires caused by high temperatures; at the same time, when a fire occurs, due to the rapid rise in temperature, the heat can be transferred to the filler through the heat conduction plate, so that the filler melts and releases the limit on the spring, and then the barrier rod can be retracted to the inside of the mounting shell, and the stored carbon dioxide can be injected into the interior of the shell under the joint action of the extrusion plate, the connecting rod and the counterweight plate to dilute the internal oxygen, thereby achieving the effect of extinguishing the fire; at the same time, the problem of subsequent difficulty in cleaning when using a dry powder fire extinguishing method is avoided, and the effect of timely fire extinguishing is achieved through the heat conduction of abnormal temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0015] Figure 3 It is a cross-sectional schematic diagram of the heat dissipation mechanism of the utility model;

[0016] Figure 4 for Figure 3 A is an enlarged view of the middle image.

[0017] In the figure: 1. outer shell; 2. heat dissipation mechanism; 21. heat dissipation component; 22. auxiliary component; 211. connecting shell; 212. mounting box; 213. fan; 214. filter; 215. through hole; 221. storage box; 222. counterweight plate; 223. extrusion plate; 224. connecting pipe; 225. one-way valve; 226. mounting shell; 227. heat conduction plate; 228. packing; 229. storage chamber; 2210. spring; 2211. stop rod. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] When implementing: Figure 1-4 As shown, a low-frequency load reduction protection device comprises: a housing 1; a heat dissipation mechanism 2, the heat dissipation mechanism 2 comprises a heat dissipation component 21 and an auxiliary component 22; wherein the heat dissipation component 21 comprises two connection shells 211 fixedly connected to both sides of the housing 1, a mounting box 212 is detachably provided inside the connection shell 211, a surface of the mounting box 212 is provided with evenly distributed ventilation slots, a filter screen 214 is fixedly connected to the inner wall of the connection shell 211, a fan 213 is provided inside the connection shell 211 between the filter screen 214 and the mounting box 212, and a through hole 215 evenly distributed and connected to the inside of the housing 1 is provided on the surface of the connection shell 211;

[0020] The low-frequency load reduction device is arranged inside the housing 1. The low-frequency load reduction device is not shown in the figure. The interior of the installation box 212 is used to fill the desiccant. By starting the fan 213, the outside air can be introduced into the interior of the installation box 212 under the action of the ventilation slot. Under the action of the desiccant, the moisture in the air can be absorbed, and after being filtered by the filter 214, the air is introduced into the interior of the housing 1 under the action of the through hole 215, so as to dissipate heat and cool down the internal electronic components.

[0021] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the auxiliary component 22 includes two storage boxes 221 respectively fixedly connected to the inner walls of the two connection shells 211, the inner wall of the storage box 221 is slidably connected with an extrusion plate 223, the bottom of the extrusion plate 223 is fixedly connected with two connecting rods, the lower ends of the connecting rods penetrate the storage box 221 and are fixedly connected with a counterweight plate 222; an air storage cavity is formed between the bottom of the extrusion plate 223 and the inner wall of the storage box 221, the interior of the air storage cavity is filled with carbon dioxide, and a connecting pipe 224 connected to the air storage cavity is provided on the surface of the storage box 221; the other end of the connecting pipe 224 is connected to the interior of the outer shell 1, and a one-way valve 225 is provided inside the connecting pipe 224;

[0022] The setting of the counterweight plate 222 can drive the extrusion plate 223 to move downward under the action of gravity, thereby squeezing the carbon dioxide stored in the gas storage chamber. The squeezed carbon dioxide can overcome the resistance of the one-way valve 225 and pass through the connecting pipe 224 into the interior of the outer shell 1. When a fire occurs inside the outer shell 1, the carbon dioxide can be introduced into the interior for fire extinguishing, thereby reducing damage and providing good protection for the outer shell 1.

[0023] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a mounting shell 226 is fixedly connected to the surface of the storage box 221, a heat conducting plate 227 is arranged inside the outer shell 1, one end of the heat conducting plate 227 extends to the inside of the mounting shell 226, a baffle rod 2211 is arranged inside the storage box 221 between the counterweight plate 222 and the filter screen 214, the top of the baffle rod 2211 contacts the bottom of the counterweight plate 222, one end of the baffle rod 2211 extends to the inside of the mounting shell 226 and is slidably connected to the inner wall of the mounting shell 226; a spring 2210 is fixedly connected between one end of the baffle rod 2211 and the heat conducting plate 227, a filler 228 is filled between one end of the baffle rod 2211 and the heat conducting plate 227, and the filler 228 wraps the spring 2210, and the filler 228 is a polyethylene wax material component; the bottom bulge of the mounting shell 226 forms a connecting portion, and a storage cavity 229 connected to the inside of the mounting shell 226 is opened inside the connecting portion;

[0024] Under normal circumstances, the heat dissipation component 21 can dissipate heat well inside the shell 1 and keep the interior in a good working temperature environment. When a fire occurs, the internal temperature of the shell 1 rises and is transmitted to the filler 228 through the heat conduction plate 227, causing the filler 228 of the polyethylene wax material component to melt, thereby releasing the limit on the spring 2210, allowing the spring 2210 to reset and drive the baffle rod 2211 to shrink to the inside of the mounting shell 226. At this time, the baffle rod 2211 releases the limit on the counterweight plate 222, so that the stored carbon dioxide can be squeezed under the action of the gravity of the counterweight plate 222 and quickly injected into the interior of the shell 1 to achieve the effect of extinguishing the fire.

[0025] When the utility model is in use, the interior of the installation box 212 is used to fill the desiccant. By starting the fan 213, the outside air can be introduced into the interior of the installation box 212 under the action of the ventilation groove. Under the action of the desiccant, the moisture therein can be absorbed, and after being filtered through the filter screen 214, it is introduced into the interior of the shell 1 under the action of the through hole 215, which is used to dissipate heat and cool the internal electronic components. When a fire occurs, the internal temperature of the shell 1 increases and is transmitted to the filler 228 through the heat conduction plate 227, so that the filler 228 of the polyethylene wax material component melts, thereby releasing the limit on the spring 2210, so that the spring 2210 is reset and drives the baffle rod 2211 to shrink to the interior of the installation shell 226. At this time, the baffle rod 2211 releases the limit on the counterweight plate 222, so that the stored carbon dioxide can be squeezed under the gravity of the counterweight plate 222 and quickly injected into the interior of the shell 1 to achieve the effect of extinguishing the fire.

[0026] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A low-frequency load shedding protection device, characterized in that: include: Housing (1); A heat dissipation mechanism (2), the heat dissipation mechanism (2) comprising a heat dissipation component (21) and an auxiliary component (22); The heat dissipation assembly (21) comprises two connection shells (211) fixedly connected to two sides of the outer shell (1); a mounting box (212) is detachably arranged inside the connection shell (211); a surface of the mounting box (212) is provided with evenly distributed ventilation slots; an inner wall of the connection shell (211) is fixedly connected with a filter screen (214); a fan (213) is arranged inside the connection shell (211) and is located between the filter screen (214) and the mounting box (212); and a surface of the connection shell (211) is provided with evenly distributed through holes (215) that are connected to the interior of the outer shell (1).

2. A low-frequency load shedding protection device according to claim 1, characterized in that: The auxiliary component (22) comprises two storage boxes (221) respectively fixedly connected to the inner walls of the two connecting shells (211); the inner wall of the storage box (221) is slidably connected to an extrusion plate (223); the bottom of the extrusion plate (223) is fixedly connected to two connecting rods; the lower ends of the connecting rods pass through the storage box (221) and are fixedly connected to a counterweight plate (222).

3. A low-frequency load shedding protection device according to claim 2, characterized in that: An air storage cavity is formed between the bottom of the extrusion plate (223) and the inner wall of the storage box (221), the interior of the air storage cavity is filled with carbon dioxide, and a connecting pipe (224) communicating with the air storage cavity is provided on the surface of the storage box (221).

4. A low-frequency load shedding protection device according to claim 3, characterized in that: The other end of the connecting pipe (224) is in communication with the interior of the housing (1), and a one-way valve (225) is provided inside the connecting pipe (224).

5. A low-frequency load shedding protection device according to claim 4, characterized in that: The surface of the storage box (221) is fixedly connected to a mounting shell (226); a heat conducting plate (227) is arranged inside the outer shell (1); one end of the heat conducting plate (227) extends to the inside of the mounting shell (226); a baffle rod (2211) is arranged inside the storage box (221) and is located between the counterweight plate (222) and the filter (214); the top of the baffle rod (2211) contacts the bottom of the counterweight plate (222); one end of the baffle rod (2211) extends to the inside of the mounting shell (226) and is slidably connected to the inner wall of the mounting shell (226).

6. A low-frequency load shedding protection device according to claim 5, characterized in that: A spring (2210) is fixedly connected between one end of the baffle rod (2211) and the heat conducting plate (227), a filler (228) is filled between one end of the baffle rod (2211) and the heat conducting plate (227), and the filler (228) wraps the spring (2210), and the filler (228) is a component made of polyethylene wax.

7. A low-frequency load shedding protection device according to claim 6, characterized in that: The bottom protrusion of the installation shell (226) forms a connecting portion, and a storage cavity (229) communicating with the interior of the installation shell (226) is provided inside the connecting portion.

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