A high-efficiency heat dissipation cable distribution box

Abstract

This invention discloses a high-efficiency heat dissipation cable distribution box, relating to the technical field of cable distribution boxes. It includes a box body with a hinged door on one side. A heat dissipation structure is provided on the box body, including an air inlet duct. The heat dissipation structure dissipates heat from the box body. A scraper structure is provided at the inlet end of the air inlet duct to remove dust. The heat dissipation structure also includes a filter cartridge, which is rotatably connected to the outlet end of the air inlet duct. The heat dissipation structure, with its cooling fan and air inlet duct, facilitates heat dissipation from the internal components of the box, reducing the internal temperature. The scraper structure, with its scraper plate and rotatable filter cartridge, allows for self-cleaning when the door is opened, removing cottonwood and willow catkins from the filter cartridge and preventing clogging.

Description

Technical Field

[0001] This invention relates to the field of cable branch box technology, specifically a high-efficiency heat dissipation cable branch box. Background Technology

[0002] On long-distance power lines, using multiple small-area cables would be wasteful. Typically, a main main cable is used, and near the load, a cable branch box is used to divide the main cable into several smaller-area cables, which are then connected to the load. This wiring method is widely used in urban power grids for powering streetlights and small customers. When the cable length cannot meet the line requirements, cable joints or cable junction boxes are required. On cable lines longer than 1000m, if there are multiple joints in the cable, cable branch boxes are used for connection to ensure safety.

[0003] When cable distribution boxes are used in hot weather, the high internal temperature can affect their lifespan. Cooling fans are used to dissipate heat from the internal components. However, these fans also draw in outside air during operation. In spring and summer, large amounts of poplar and willow catkins are dispersed in the air. These catkins are easily drawn in by the fans and blown into the cable distribution box, potentially posing a safety hazard. Although filters are installed, they are prone to clogging. This necessitates cleaning the filters of the catkins during maintenance, which is time-consuming and labor-intensive.

[0004] Therefore, a high-efficiency heat dissipation cable distribution box is provided to solve the problems mentioned in the background art. Summary of the Invention

[0005] The purpose of this invention is to provide a high-efficiency heat dissipation cable distribution box to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A high-efficiency heat dissipation cable branch box includes a box body, a door hinged to one side of the box body, a heat dissipation structure on the box body, the heat dissipation structure including an air inlet pipe, the heat dissipation structure for dissipating heat from the box body, and a scraper structure at the inlet end of the air inlet pipe for scraping away dust.

[0008] As a further embodiment of the present invention: the heat dissipation structure further includes a filter cylinder, the filter cylinder being rotatably connected to the output end of the air inlet pipe, a cooling fan being rotatably connected inside the air inlet pipe, and an exhaust vent being installed on the door.

[0009] As a further embodiment of the present invention: the scraper structure includes a sliding groove, a toothed plate is slidably connected inside the sliding groove, a fixing spring is fixedly connected between the toothed plate and the inner wall of the sliding groove, a first gear and a second gear are rotatably connected to one side of the sliding groove, the toothed plate meshes with the first gear and the second gear, a first bevel gear meshes with each other at the upper end of the second gear and one end of the filter cylinder, scraper plates are attached to both sides of the filter cylinder, and the scraper plates are fixedly connected to the input end of the air inlet pipe.

[0010] As a further embodiment of the present invention: the toothed plate is provided with two sets of tooth blocks with different numbers of teeth, and the two sets of tooth blocks respectively mesh with the first gear and the second gear respectively.

[0011] As a further embodiment of the present invention: one end of the filter cylinder is fixedly connected to a main gear, a secondary gear is meshed on one side of the main gear, the secondary gear is rotatably connected to the inner wall of the air inlet pipe, both sets of scraper blades are provided with sliding grooves, a reciprocating screw is rotatably connected inside the sliding grooves, the reciprocating screw is fixedly connected to one side of the secondary gear, a scraper ring is spirally connected to the reciprocating screw, and the scraper ring is in contact with the filter cylinder.

[0012] As a further embodiment of the present invention: a reverse blowing structure is provided above the cooling fan, the reverse blowing structure includes symmetrical air guide plates, the air guide plates are rotatably connected to the inner wall of the air inlet pipe, a threaded screw is provided below the air guide plates, the threaded screw is rotatably connected to the inner wall of the air inlet pipe, two sets of sliding blocks are helically connected to the threaded screw, and a telescopic rod is fixedly connected between the sliding blocks and the air guide plates.

[0013] As a further embodiment of the present invention, the threaded screw is provided with two sets of opposite threads.

[0014] As a further embodiment of the present invention: a second bevel gear meshing with each other is installed on the upper side of the first gear and on the side of the cooling fan; two sets of first sprockets and second sprockets are provided on one side of the second bevel gear; a first transmission chain is provided between the two sets of first sprockets; a second transmission chain is provided between the second sprockets; the threaded screw is fixedly connected to the threaded screw; and both sets of first sprockets and second sprockets are rotatably connected to the inner wall of the air inlet pipe.

[0015] As a further embodiment of the present invention: a pull rope is fixedly connected to one end of the box door, and the pull rope is fixedly connected to the toothed plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] By providing a heat dissipation structure, the heat dissipation fan and the air inlet pipe in the heat dissipation structure facilitate heat dissipation of the components inside the box body, reduce the temperature inside the box body, and the "冂"-shaped arrangement can prevent a large amount of dust, willow catkins, and poplar catkins from accumulating on the air inlet of the box body.

[0018] By providing a scraping structure, when the staff opens the box door to maintain the components inside the box body, the scraping plate and the rotatable filter cylinder in the scraping structure can perform self-cleaning on the filter cylinder, which can remove the willow catkins and poplar catkins on the filter cylinder and prevent the filter cylinder from being blocked. This structure reduces the maintenance time of the maintenance personnel for the box body and improves the maintenance efficiency of the box body.

[0019] 3. By providing a backwashing structure, the heat dissipation fan in the backwashing structure can blow against the air inlet pipe in the reverse direction, and then can blow against the filter cylinder. In cooperation with the scraping structure mentioned above, it can perform blowing treatment while scraping the filter cylinder, so that the willow catkins and poplar catkins blocked inside the filter cylinder will be blown away, keeping the filter holes on the filter cylinder clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure in the present invention;

[0021] Figure 2 It is a schematic diagram of the sliding groove structure in the present invention;

[0022] Figure 3 It is a schematic diagram of the heat dissipation fan structure in the present invention;

[0023] Figure 4 It is a schematic diagram of the filter cylinder structure in the present invention;

[0024] Figure 5 It is a schematic cross-sectional view of the air inlet pipe structure in the present invention;

[0025] Figure 6 It is a schematic diagram of the toothed plate structure in the present invention;

[0026] Figure 7 It is a schematic diagram of an embodiment structure in the present invention;

[0027] Figure 8 It is a schematic diagram of the reciprocating screw rod structure in the present invention;

[0028] The corresponding relationship between the labels of each attached drawing in the figure and the component names is as follows:

[0029] 1. Cabinet; 101. Cabinet door; 102. Sliding groove; 103. Fixed spring; 2. Air inlet pipe; 201. Filter cartridge; 202. Cooling fan; 203. Air outlet; 3. Toothed plate; 301. First gear; 302. Second gear; 303. First bevel gear; 304. Scrubbing plate; 305. Main gear; 306. Auxiliary gear; 307. Reciprocating screw rod; 308. Scrubbing ring; 4. Second bevel gear; 401. First sprocket; 402. First drive chain; 403. Second sprocket; 404. Second drive chain; 405. Threaded screw rod; 406. Sliding block; 407. Telescopic rod; 408. Air deflector; 5. Pulling rope. Detailed implementation mode

[0030] Please refer to Figure 1 : A cable distribution box with efficient heat dissipation, including a cabinet 1. One side of the cabinet 1 is hinged with a cabinet door 101. A heat dissipation structure is provided on the cabinet 1. The heat dissipation structure includes an air inlet pipe 2. The heat dissipation structure plays a role in dissipating heat from the cabinet 1. A scrubbing structure is provided at the inlet end of the air inlet pipe 2, and the scrubbing structure can scrub dust.

[0031] Among them, the air inlet pipe 2 is arranged in a "冂" shape. This setting is to avoid the phenomenon of "upward air inlet and downward air outlet" in traditional heat dissipation. Although "upward air inlet and downward air outlet" can improve the heat dissipation efficiency, this structure will cause a large amount of dust and catkins to accumulate on the air inlet of the cabinet 1, affecting the subsequent heat dissipation of the cabinet 1.

[0032] The heat dissipation structure further includes a filter cartridge 201. The filter cartridge 201 is rotatably connected to the output end of the air inlet pipe 2. A cooling fan 202 is rotatably connected inside the air inlet pipe 2. An air outlet 203 is installed on the cabinet door 101.

[0033] And a thermostat is provided inside the cabinet 1. When the thermostat detects that the temperature inside the cabinet 1 reaches the threshold temperature for heat dissipation, the cooling fan 202 will start working to dissipate heat from the inside of the cabinet 1, which can accelerate the air circulation inside the cabinet 1, allow cold air from the outside to enter the inside of the cabinet 1, and blow the hot air inside the cabinet 1 out of the cabinet 1. And a manual switch for the cooling fan 202 is also provided inside the cabinet 1, and the manual switch facilitates the subsequent back blowing work of the cooling fan 202.

[0034] Such as Figure 2 and Figure 3As shown, the scraper structure includes a sliding groove 102, a toothed plate 3 is slidably connected inside the sliding groove 102, a fixing spring 103 is fixedly connected between the toothed plate 3 and the inner wall of the sliding groove 102, a first gear 301 and a second gear 302 are rotatably connected to one side of the sliding groove 102, the toothed plate 3 meshes with the first gear 301 and the second gear 302, a first bevel gear 303 is fixedly connected to the upper end of the second gear 302 and one end of the filter cylinder 201, scraper plates 304 are attached to both sides of the filter cylinder 201, the scraper plates 304 are fixedly connected to the input end of the air inlet pipe 2, and a pull rope 5 is fixedly connected to one end of the box door 101, the pull rope 5 is fixedly connected to the toothed plate 3. In this embodiment, when the staff performs maintenance work on the box 1, they will first open the box door 101. When the box door 101 is opened, the toothed plate 3 will be moved inside the sliding groove 102 by the pull rope 5. When the toothed plate 3 moves inside the sliding groove 102, it will drive the first gear 301 and the second gear 302 to rotate. When the second gear 302 rotates, it will drive the filter cylinder 201 to rotate through the first bevel gear 303. The filter cylinder 201 is hollow and has multiple filter holes on its side. The diameter of the filter holes is smaller than the diameter of willow catkins and poplar catkins to prevent them from entering the box 1. When the filter cylinder 201 rotates, the fixed scraper plate 304 scrapes the round edge of the filter cylinder 201 and cleans the round edge of the filter cylinder 201 to prevent willow catkins and poplar catkins from sticking to the surface of the filter cylinder 201 and prevent external air from entering the box 1.

[0035] Preferably, the toothed plate 3 is provided with two sets of tooth blocks with different numbers of teeth, and the two sets of tooth blocks mesh with the first gear 301 and the second gear 302 respectively. In this embodiment, because the number of teeth and the spacing between the tooth blocks on the toothed plate 3 are different, the number of rotations of the first gear 301 and the second gear 302 are also different, which facilitates the rotation of the cooling fan 202 and the filter cartridge 201 at different angles. Therefore, when the cooling fan 202 rotates at an angle of 180°, the rotation angle of the filter cartridge 201 is greater than 360°. During the cleaning process of the filter cartridge 201, the air outlet angle of the cooling fan 202 can be changed from an air intake state to a blowing state to help clean the filter cartridge 201.

[0036] like Figure 4As shown, the specific cleaning process is as follows: a main gear 305 is fixedly connected to one end of the filter cylinder 201, and a secondary gear 306 is meshed on one side of the main gear 305. The secondary gear 306 is rotatably connected to the inner wall of the air inlet pipe 2. The interior of both sets of scraper blades 304 is provided with sliding grooves, and a reciprocating screw 307 is rotatably connected inside the sliding grooves. The reciprocating screw 307 is fixedly connected to one side of the secondary gear 306, and a scraper ring 308 is spirally connected to the reciprocating screw 307. The scraper ring 308 is in contact with the filter cylinder 201. When the filter cylinder 201 rotates, the main gear 305 drives the auxiliary gear 306 to rotate. When the auxiliary gear 306 rotates, it drives the reciprocating screw 307 to rotate. When the reciprocating screw 307 rotates, it causes the scraper ring 308 to move on the surface of the filter cylinder 201, scraping the surface of the filter cylinder 201 to remove the willow catkins and poplar catkins on the surface of the filter cylinder 201. It can also remove the willow catkins and poplar catkins accumulated at the junction of the scraper plate 304 and the filter cylinder 201.

[0037] Furthermore, because the main gear 305 and the auxiliary gear 306 are of different sizes, it is necessary to ensure that when the filter cylinder 201 rotates one revolution, the scraper ring 308 needs to make a back-and-forth movement on the surface of the filter cylinder 201.

[0038] Furthermore, a back-blowing structure is installed above the cooling fan 202. This structure includes symmetrical air guide plates 408, which are rotatably connected to the inner wall of the air inlet pipe 2. A threaded screw 405 is installed below the air guide plate 408, and is rotatably connected to the inner wall of the air inlet pipe 2. Two sets of sliding blocks 406 are screwed onto the threaded screw 405. A telescopic rod 407 is fixedly connected between the sliding blocks 406 and the air guide plate 408. The first gear 301 is located above the cooling fan 202. A second bevel gear 4 is installed on one side and meshes with each other. Two sets of first sprockets 401 and second sprockets 403 are provided on one side of the second bevel gear 4. A first transmission chain 402 is provided between the two sets of first sprockets 401 and a second transmission chain 404 is provided between the second sprockets 403. A threaded screw 405 is fixedly connected to the threaded screw 405. Both sets of first sprockets 401 and second sprockets 403 are rotatably connected to the inner wall of the air inlet pipe 2. Two sets of opposite threads are provided on the threaded screw 405.

[0039] like Figure 5 and Figure 6As shown, when the first gear 301 rotates, it drives the cooling fan 202 to rotate through the second bevel gear 4. The cooling fan 202 rotates 180° and back-blown air into the air inlet pipe 2, causing air from inside the housing 1 to enter the air inlet pipe 2. Then, the air is blown onto the filter cartridge 201 through the air inlet pipe 2, thus cleaning the filter cartridge 201. In conjunction with the scraping structure mentioned above, this device can perform reverse blowing while scraping the filter cartridge 201, preventing the filter holes on the filter cartridge 201 from being blocked by poplar and willow catkins, and allowing external air to smoothly pass through the filter cartridge 201 into the air inlet pipe 2.

[0040] like Figure 7 and Figure 8 As shown, when the first gear 301 drives the cooling fan 202 to rotate, it also drives the first sprocket 401 and the second sprocket 403 to rotate. When the second sprocket 403 rotates, it drives the threaded screw 405 to rotate. When the threaded screw 405 rotates, it drives the two sliding blocks 406 to move away from each other. Then, the two sliding blocks 406 drive the air guide plate 408 to rotate by an angle via the telescopic rod 407. Figure 7 As shown in the figure, this setting reduces the space for airflow when the cooling fan 202 blows back, thereby increasing the airflow speed and enabling better airflow treatment of the filter cartridge 201.

[0041] like Figure 3 As shown, under normal circumstances, the two air guide plates 408 are parallel to each other. This arrangement is to avoid affecting the airflow generated by the cooling fan 202 during operation. If the two air guide plates 408 are tilted, the air inlet on the upper side of the cooling fan 202 will be reduced, which will affect the airflow entering the housing 1, thereby reducing the air circulation inside the housing 1 and affecting the heat dissipation efficiency. The two parallel air guide plates 408, under normal conditions, will not cause this problem. Furthermore, when the air guide plates 408 are designed to be parallel, the air intake speed of the cooling fan 202, with a constant airflow force, will be less than the intake speed when the air guide plates 408 are tilted. Therefore, the negative pressure intensity on the filter cartridge 201 is smaller, and the ability of impurities and dust to adhere to the filter cartridge 201 is weakened, preventing the accumulation of impurities and dust on the filter cartridge 201.

[0042] Working principle: When the staff performs maintenance work on the housing 1, they first open the door 101. When the door 101 is opened, the pull rope 5 moves the toothed plate 3 inside the sliding groove 102. As the toothed plate 3 moves inside the sliding groove 102, it drives the first gear 301 and the second gear 302 to rotate. When the first gear 301 rotates, it drives the cooling fan 202 to rotate through the second bevel gear 4. The cooling fan 202 rotates 180°, back-blowing the air inlet pipe 2, causing air from inside the housing 1 to enter the air inlet pipe 2. Then, the air is blown onto the filter cartridge 201 through the air inlet pipe 2, thus cleaning the filter cartridge 201 and preventing air from entering the housing. The filter holes on the filter cylinder 201 are blocked with poplar and willow catkins, allowing outside air to flow smoothly through the filter cylinder 201 into the air inlet pipe 2. When the second gear 302 rotates, it drives the filter cylinder 201 to rotate through the first bevel gear 303. The filter cylinder 201 is hollow and has multiple filter holes on its side. The diameter of the filter holes is smaller than that of the poplar and willow catkins, preventing them from entering the housing 1. When the filter cylinder 201 rotates, the fixed scraper 304 scrapes the round edge of the filter cylinder 201, cleaning it and preventing the poplar and willow catkins from sticking to the surface of the filter cylinder 201, thus preventing outside air from being unable to enter the housing 1.

[0043] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A high-efficiency heat dissipation cable branch box, comprising a box body (1), characterized in that, A door (101) is hinged to one side of the housing (1). A heat dissipation structure is provided on the housing (1). The heat dissipation structure includes an air inlet pipe (2). The heat dissipation structure dissipates heat from the housing (1). The heat dissipation structure also includes a filter cylinder (201). The filter cylinder (201) is rotatably connected to the output end of the air inlet pipe (2). A cooling fan (202) is rotatably connected inside the air inlet pipe (2). An exhaust port (203) is installed on the door (101). A scraper structure is provided at the inlet end of the air inlet pipe (2). The scraper structure can scrape dust. The scraper structure includes a sliding groove (102). 02) has a toothed plate (3) slidingly connected inside. A fixed spring (103) is fixedly connected between the toothed plate (3) and the inner wall of the sliding groove (102). A first gear (301) and a second gear (302) are rotatably connected to one side of the sliding groove (102). The toothed plate (3) meshes with the first gear (301) and the second gear (302). A first bevel gear (303) meshes with each other at the upper end of the second gear (302) and at one end of the filter cylinder (201). A scraper plate (304) is attached to both sides of the filter cylinder (201). The scraper plate (304) is fixedly connected to the input end of the air inlet pipe (2).

2. The high-efficiency heat dissipation cable branch box according to claim 1, characterized in that, The toothed plate (3) is provided with two sets of tooth blocks with different numbers of teeth. The two sets of tooth blocks mesh with the first gear (301) and the second gear (302) respectively.

3. The high-efficiency heat dissipation cable branch box according to claim 1, characterized in that, A back-blowing structure is provided above the cooling fan (202). The back-blowing structure includes symmetrical air guide plates (408). The air guide plates (408) are rotatably connected to the inner wall of the air inlet pipe (2). A threaded screw (405) is provided below the air guide plates (408). The threaded screw (405) is rotatably connected to the inner wall of the air inlet pipe (2). Two sets of sliding blocks (406) are spirally connected on the threaded screw (405). A telescopic rod (407) is fixedly connected between the sliding blocks (406) and the air guide plates (408).

4. The high-efficiency heat dissipation cable branch box according to claim 3, characterized in that, One end of the filter cylinder (201) is fixedly connected to a main gear (305), and a secondary gear (306) is meshed on one side of the main gear (305). The secondary gear (306) is rotatably connected to the inner wall of the air inlet pipe (2). The interior of both sets of scraper plates (304) is provided with sliding grooves. A reciprocating screw (307) is rotatably connected inside the sliding grooves. The reciprocating screw (307) is fixedly connected to one side of the secondary gear (306). A scraper ring (308) is spirally connected to the reciprocating screw (307), and the scraper ring (308) is in contact with the filter cylinder (201).

5. A high-efficiency heat dissipation cable branch box according to claim 4, characterized in that, The threaded screw (405) has two sets of opposite threads.

6. A high-efficiency heat dissipation cable branch box according to claim 5, characterized in that, A second bevel gear (4) meshes with each other on the upper side of the first gear (301) and on the side of the cooling fan (202). Two sets of first sprockets (401) and second sprockets (403) are provided on one side of the second bevel gear (4). A first transmission chain (402) is provided between the two sets of first sprockets (401), and a second transmission chain (404) is provided between the second sprockets (403). The threaded screw (405) is fixedly connected to the threaded screw (405). Both sets of first sprockets (401) and second sprockets (403) are rotatably connected to the inner wall of the air inlet pipe (2).

7. A high-efficiency heat dissipation cable branch box according to claim 6, characterized in that, A pull rope (5) is fixedly connected to one end of the box door (101), and the pull rope (5) is fixedly connected to the toothed plate (3).

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