Air inlet structure of distribution box

Abstract

According to the technical scheme, the air inlet structure of the distribution box is characterized in that the air inlet structure comprises a box body, an air inlet pipe, a filter cover and a cooling fan, a mounting groove communicating with the air inlet pipe is formed in the box body, the cooling fan is rotationally connected to the mounting groove, and an adjusting mechanism used for driving the cooling fan to turn over is mounted in the mounting groove; the filter cover comprises a positioning cover and a cleaning cover, the positioning cover is fixedly mounted between the air inlet pipe and the mounting groove, the cleaning cover is slidably connected into the air inlet pipe, and the cleaning cover is located on the side, opposite to the cooling fan, of the positioning cover; a driving mechanism is arranged on the cleaning cover, one end of the driving mechanism extends into the mounting groove, and the cooling fan comprises a cooling station and a cleaning station in the process that the cooling fan is driven by the adjusting mechanism to turn over; the driving part is arranged on one side of the cooling fan, when the cooling fan is located at the cleaning station, the driving part and the driving mechanism are arranged in a linkage mode, the air inlet structure can prolong the duration of maintenance needed by the air inlet area, and the risk that the filter plate is blocked is reduced.

Description

Technical Field

[0001] This invention relates to the field of power equipment technology, and more specifically, to an air intake structure for a distribution box. Background Technology

[0002] As an indispensable and critical component of the power system, the distribution box is a low-voltage switchgear specifically designed for distributing electrical energy. Distribution boxes possess multiple protection functions, providing overload protection to prevent damage to equipment due to excessive current; short-circuit protection to avoid serious accidents such as fires caused by short circuits; and leakage protection to effectively reduce the risk of electric shock, comprehensively ensuring the safety of personnel and equipment.

[0003] In the technical field of distribution boxes, their structure typically employs a closed enclosure design, which to some extent protects internal components from external environmental interference and damage. However, during continuous operation of the cooling fan, it inevitably draws in outside air. Impurities such as lint and dust carried in the air gradually accumulate on the cooling fan's filter. Over time, when the filter becomes extensively clogged, the internal ventilation effect deteriorates significantly. Poor ventilation directly prevents heat from dissipating in a timely manner, severely impacting the distribution box's heat dissipation, reducing its operating efficiency and stability, and potentially even causing equipment failure and shortening its lifespan.

[0004] Currently, maintaining a power distribution box requires disassembling the entire air intake system and then thoroughly cleaning the filter. This process is not only cumbersome but also consumes a significant amount of manpower and time. Therefore, developing a self-maintaining heat dissipation structure is particularly urgent and necessary. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this invention is to provide an air intake structure for a distribution box, which can extend the maintenance time required for the air intake area and reduce the risk of filter plate blockage.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an air intake structure for a distribution box, comprising a box body, an air intake pipe, a filter cover, and a cooling fan, wherein the box body is provided with an installation groove communicating with the air intake pipe, the cooling fan is rotatably connected to the installation groove, and an adjustment mechanism for driving the cooling fan to rotate is installed in the installation groove. The filter cover includes a positioning cover and a cleaning cover. The positioning cover is fixedly installed between the air inlet pipe and the mounting groove. The cleaning cover is slidably connected inside the air inlet pipe, and the cleaning cover is located on the side of the positioning cover that faces away from the cooling fan. The cleaning cover is equipped with a drive mechanism, one end of which extends into the mounting groove. During the process of the adjustment mechanism driving the cooling fan to rotate, the cooling fan includes a heat dissipation station and a cleaning station. A drive unit is provided on one side of the cooling fan. When the cooling fan is in the cleaning position, the drive unit is linked with the drive mechanism.

[0007] The present invention is further configured such that: the cooling fan includes a mounting base, a fan body, a transmission component, and a transmission ring, the transmission component is mounted in the middle of the mounting base, and the fan body is detachably mounted on the transmission component; The transmission ring is connected to the fan body, and a transmission protrusion is provided on the side of the transmission ring facing the drive mechanism. The transmission protrusion is arranged in a wave-like structure along the circumference of the transmission ring.

[0008] The present invention is further configured such that: the driving part includes a driving seat, a driving block and a driving spring; the driving seat is fixedly installed on one side of the mounting base; the driving seat is provided with a driving cavity; the driving block is slidably connected to the driving cavity through the driving spring; one end of the driving block abuts against the transmission protrusion; and the other end of the driving block abuts against the driving mechanism.

[0009] The present invention is further configured such that: a drive groove is provided on the air inlet pipe, the drive mechanism includes a drive rod and an adjusting spring, the drive rod is slidably connected to the drive groove through the adjusting spring, one end of the drive rod is fixedly connected to the cleaning cover, and the other end is used to abut against the drive block.

[0010] The invention is further configured such that: the drive seat is provided with a guide groove, and the drive block is provided with a guide slope on the side facing the drive mechanism; when the cooling fan flips from the cooling station to the cleaning station, the drive rod moves along the guide groove to abut against the drive block.

[0011] The present invention is further configured such that: the cleaning cover is provided with a plurality of cleaning holes and cleaning blocks, and the positioning cover is provided with a plurality of positioning holes and positioning blocks, wherein the positioning holes correspond to the cleaning holes, and during repeated movement of the cleaning cover, the positioning blocks are inserted into the cleaning holes.

[0012] The present invention is further configured such that: a rotating cylinder is rotatably connected to the side of the cleaning cover facing away from the positioning cover; a spiral groove is provided on the inner wall of the air inlet pipe; the spiral groove extends along the axial direction of the air inlet pipe; and a rotating arm is provided on the rotating cylinder and slidably connected to the spiral groove. As the cleaning hood moves repeatedly, the rotating cylinder rotates along the spiral groove.

[0013] The present invention is further configured such that the air inlet pipe is T-shaped.

[0014] The present invention is further configured such that: one end of the air inlet pipe is connected to the housing, the other end of the air inlet pipe is detachably connected to an adsorption component, and an air inlet is provided at the middle end of the air inlet pipe.

[0015] The present invention is further configured such that: the adjustment mechanism includes an adjustment motor and a reducer; the middle part of the cooling fan is connected to the mounting groove via a flip shaft; and the adjustment motor is connected to the flip shaft via the reducer.

[0016] In summary, the present invention has the following beneficial effects: when the cooling fan is in the heat dissipation position, it can introduce the gas outside the box into the box and then exhaust it from the air outlet to form a wind-cooling effect.

[0017] When the cooling fan changes from the heat dissipation station to the cleaning station, the air inside the box is drawn in from the air outlet and then discharged from the air inlet pipe. The air inlet pipe is blown in the opposite direction by the reverse air blowing mechanism, thereby blowing away the dust accumulated on the positioning cover and ensuring the unobstructed heat dissipation channel.

[0018] Furthermore, when the cooling fan changes from the heat dissipation station to the cleaning station, the drive unit can work in conjunction with the drive mechanism. During the operation of the cooling fan, the drive unit causes the drive mechanism to move, thereby effectively cleaning the air inlet pipe, the cleaning cover, and the positioning cover in conjunction with the cleaning cover, ensuring the air intake effect of the air inlet pipe, the cleaning cover, and the positioning cover. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the distribution box; Figure 2 This is a schematic diagram of the separate structure of the distribution box; Figure 3 This is a schematic diagram of the separate structure of the air intake duct and the cooling fan; Figure 4 This is a three-dimensional structural diagram of the air inlet duct; Figure 5 This is a three-dimensional structural diagram of the drive unit; Figure 6 This is a schematic diagram of the internal structure of the drive unit; Figure 7 This is a structural diagram showing the location of the transmission ring.

[0020] Reference numerals: 1. Housing; 11. Mounting slot; 2. Air inlet pipe; 21. Drive slot; 22. Spiral groove; 23. Adsorption component; 3. Filter cover; 31. Positioning cover; 311. Positioning hole; 312. Positioning block; 32. Cleaning cover; 321. Cleaning hole; 322. Cleaning block; 33. Rotating cylinder; 34. Rotating arm; 4. Cooling fan; 41. Mounting base; 42. Fan body; 43. Transmission ring; 5. Adjustment mechanism; 6. Drive mechanism; 61. Drive rod; 7. Drive unit; 71. Drive base; 711. Drive cavity; 712. Guide groove; 72. Drive block; 73. Drive spring. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Reference Figures 1 to 7 As shown, in order to achieve the above objectives, the present invention provides the following technical solution: an air intake structure for a distribution box, including a box body 1, an air intake pipe 2, a filter cover 3, and a cooling fan 4. The box body 1 is provided with an installation groove 11 that communicates with the air intake pipe 2. The installation groove 11 includes a square groove and a circular groove. The square groove is for installing the cooling fan 4, and the circular groove is for installing the air intake pipe 2.

[0023] The cooling fan 4 is rotatably connected to the mounting slot 11, and an adjustment mechanism 5 for driving the cooling fan 4 to rotate is installed in the mounting slot 11. The filter cover 3 includes a positioning cover 31 and a cleaning cover 32. The positioning cover 31 is fixedly installed between the air inlet pipe 2 and the mounting groove 11. The cleaning cover 32 is slidably connected to the air inlet pipe 2 and is located on the side of the positioning cover 31 that faces away from the cooling fan 4. A drive mechanism 6 is provided on the cleaning cover 32. One end of the drive mechanism 6 extends into the mounting groove 11. During the process of the adjustment mechanism 5 driving the cooling fan 4 to rotate, the cooling fan 4 includes a heat dissipation station and a cleaning station. A drive unit 7 is provided on one side of the cooling fan 4. When the cooling fan 4 is in the cleaning position, the drive unit 7 is linked with the drive mechanism 6.

[0024] In this invention, the cooling fan 4 can draw air from outside the housing 1 into the housing 1 when it is in the heat dissipation position, and then exhaust it from the air outlet to form a wind-cooling effect.

[0025] When the cooling fan 4 changes from the heat dissipation station to the cleaning station, the gas flow inside the housing 1 is drawn in from the air outlet and then discharged from the air inlet pipe 2. The air inlet pipe 2 is blown in the opposite direction by the reverse air blowing mechanism, thereby blowing away the dust accumulated on the positioning cover 31 and ensuring the smooth flow of the heat dissipation channel.

[0026] Furthermore, when the cooling fan 4 changes from the heat dissipation station to the cleaning station, the drive unit 7 can work in conjunction with the drive mechanism 6. During the operation of the cooling fan 4, the drive unit 7 causes the drive mechanism 6 to move, thereby effectively cleaning the air inlet pipe 2, the cleaning cover 32 and the positioning cover 31 in cooperation with the cleaning cover 32, ensuring the air intake effect of the air inlet pipe 2, the cleaning cover 32 and the positioning cover 31.

[0027] The present invention is further configured such that: the cooling fan 4 includes a mounting base 41, a fan body 42, a transmission component and a transmission ring 43, the transmission component is installed in the middle of the mounting base 41, and the fan body 42 is detachably installed on the transmission component; The transmission ring 43 is connected to the fan body 42, and a transmission protrusion is provided on the side of the transmission ring 43 facing the drive mechanism 6. The transmission protrusion is arranged in a wave-like structure along the circumference of the transmission ring 43.

[0028] The design of this structure uses existing technology for the fan body 42 and the transmission component in the cooling fan 4, and the rotation of the fan body 42 is controlled by the transmission component.

[0029] like Figure 7 As shown, the transmission ring is connected to the fan body 42. When the fan body 42 rotates, the transmission ring can rotate synchronously. Due to the design of the transmission protrusion, the transmission protrusion is set in a wave-like structure. The transmission protrusion at different positions has a different degree of protrusion. Therefore, when the drive unit 7 and the drive mechanism 6 abut against the transmission protrusion, different amounts of movement can be formed.

[0030] The present invention is further configured such that: the driving part 7 includes a driving seat 71, a driving block 72 and a driving spring 73. The driving seat 71 is fixedly installed on one side of the mounting base 41. A driving cavity 711 is provided inside the driving seat 71. The driving block 72 is slidably connected to the driving cavity 711 through the driving spring 73. One end of the driving block 72 is abutted against the transmission protrusion, and the other end of the driving block 72 is abutted against the driving mechanism 6.

[0031] In this structure, the transmission ring is fixed relative to the fan body 42, while the transmission ring rotates relative to the drive unit 7. When the transmission ring rotates, one end of the drive block 72 will abut against the transmission protrusions at different positions. When the protrusion of the transmission protrusions changes, the extension of the drive block 72 changes synchronously.

[0032] like Figure 6As shown, the drive spring 73 (or tension spring) is disposed in the drive cavity 711, with one end connected to the cavity wall of the drive cavity 711 and the other end connected to the drive block 72. When the position of the drive block 72 changes, the deformation of the drive spring 73 will also change.

[0033] The present invention is further configured such that: a drive groove 21 is provided on the air inlet pipe 2, and the drive mechanism 6 includes a drive rod 61 and an adjusting spring. The drive rod 61 is slidably connected to the drive groove 21 through the adjusting spring. One end of the drive rod 61 is fixedly connected to the cleaning cover 32, and the other end is used to abut against the drive block 72.

[0034] The structure is designed to change the position of the cleaning cover 32. When the cooling fan 4 is in the cleaning position, the drive rod 61 abuts against the drive block 72. When the extension of the drive block 72 changes, the positions of the drive rod 61 and the cleaning cover 32 also change accordingly, so as to satisfy the function of adjusting the front and rear orientation of the cleaning cover 32.

[0035] Since the drive unit 7 is only located on one side of the cooling fan 4, when the cooling fan 4 is in the cooling position, the drive unit 7 is far away from the drive mechanism 6.

[0036] The present invention is further configured such that: a guide groove 712 is provided on the drive seat 71, and a guide slope is provided on the side of the drive block 72 facing the drive mechanism 6. When the cooling fan 4 is flipped from the cooling station to the cleaning station, the drive rod 61 moves along the guide groove 712 to abut against the drive block 72.

[0037] The guide groove 712 is designed to facilitate engagement with the drive rod 61 during the rotation of the cooling fan 4. Specifically, when the cooling fan 4 rotates from the cooling station to the cleaning station, the drive rod 61 first slides along the guide ramp to prevent the drive rod 61 from colliding with the transmission protrusion and causing damage to the equipment.

[0038] The invention is further configured such that: the cleaning cover 32 is provided with multiple sets of cleaning holes 321 and cleaning blocks 322, and the positioning cover 31 is provided with multiple sets of positioning holes 311 and positioning blocks 312. The positioning holes 311 correspond to the cleaning holes 321. During the repeated movement of the cleaning cover 32, the positioning blocks 312 are inserted into the cleaning holes 321, and the cleaning blocks 322 are inserted into the positioning holes 311. In this structural design, both the positioning blocks 312 and the cleaning blocks 322 are convex structures, each including a thin rod and a thick rod. The diameter of the thin rod is smaller than the diameter of the positioning holes 311 and the cleaning holes 321. Therefore, when in heat dissipation mode, the thin rod is located in the positioning holes 311 and the cleaning holes 321, but still forms an effective ventilation effect.

[0039] The diameter of the thick rod is similar to the diameter of the positioning hole 311 and the cleaning hole 321. When cleaning, the thick rod can be inserted into the positioning hole 311 and the cleaning hole 321 to clean the dust particles formed in the positioning hole 311 and the cleaning hole 321, and blow them out under the action of reverse wind.

[0040] The number of positioning holes 311 and cleaning holes 321 can be the same as the number of positioning blocks 312 and cleaning blocks 322, and they can correspond one-to-one. Alternatively, the number of positioning blocks 312 and cleaning blocks 322 can be slightly less than the number of positioning holes 311 and cleaning holes 321.

[0041] The present invention is further configured such that: a rotating cylinder 33 is rotatably connected to the side of the cleaning cover 32 facing away from the positioning cover 31; a spiral groove 22 is provided on the inner wall of the air inlet pipe 2; the spiral groove 22 extends along the axial direction of the air inlet pipe 2; and a rotating arm 34 is provided on the rotating cylinder 33 and slidably connected to the spiral groove 22. As the cleaning hood 32 moves repeatedly, the rotating cylinder 33 rotates along the spiral groove 22.

[0042] The design of this structure causes the rotating cylinder 33 to rotate during the movement of the cleaning hood 32. The rotation of the rotating cylinder 33 has the following advantages: 1. It accelerates the falling of dust and facilitates the discharge of dust; 2. It can block the air inlet, so that dust can accumulate at the position of the adsorption component 23.

[0043] The invention is further configured such that the air inlet pipe 2 is T-shaped. One end of the air inlet pipe 2 is connected to the housing 1, and the other end of the air inlet pipe 2 is detachably connected to an adsorption component 23. An air inlet is provided in the middle of the air inlet pipe 2.

[0044] The adsorption component 23 can be activated carbon. The design of this structure has different air outlet and air inlet paths, which do not affect each other. During cleaning, dust can be blown to the position of the adsorption component 23, thereby avoiding secondary inhalation. Furthermore, the adsorption component 23 is set in an arc shape for better adsorption of dust.

[0045] like Figure 3 As shown, the adjustment mechanism 5 includes an adjustment motor and a reducer. The middle part of the cooling fan 4 is connected to the mounting groove 11 through a rotating shaft. The adjustment motor is connected to the rotating shaft through the reducer.

[0046] The above are merely preferred embodiments of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. An air intake structure for a distribution box, comprising a box body (1), an air intake pipe (2), a filter cover (3), and a cooling fan (4), characterized in that: The housing (1) is provided with an installation groove (11) that is connected to the air inlet pipe (2). The cooling fan (4) is rotatably connected to the installation groove (11), and an adjustment mechanism (5) for driving the cooling fan (4) to rotate is installed in the installation groove (11). The filter cover (3) includes a positioning cover (31) and a cleaning cover (32). The positioning cover (31) is fixedly installed between the air inlet pipe (2) and the mounting groove (11). The cleaning cover (32) is slidably connected inside the air inlet pipe (2), and the cleaning cover (32) is located on the side of the positioning cover (31) facing away from the cooling fan (4). The cleaning cover (32) is provided with a drive mechanism (6), one end of which extends into the mounting groove (11). During the process of the adjustment mechanism (5) driving the cooling fan (4) to rotate, the cooling fan (4) includes a heat dissipation station and a cleaning station. A drive unit (7) is provided on one side of the cooling fan (4). When the cooling fan (4) is in the cleaning position, the drive unit (7) is linked with the drive mechanism (6).

2. The air intake structure of a distribution box according to claim 1, characterized in that: The cooling fan (4) includes a mounting base (41), a fan body (42), a transmission component, and a transmission ring (43). The transmission component is installed in the middle of the mounting base (41), and the fan body (42) is detachably installed on the transmission component. The transmission ring (43) is connected to the fan body (42), and a transmission protrusion is provided on the side of the transmission ring (43) facing the drive mechanism (6). The transmission protrusion is arranged in a wave-like structure along the circumference of the transmission ring (43).

3. The air intake structure of a distribution box according to claim 2, characterized in that: The drive unit (7) includes a drive seat (71), a drive block (72), and a drive spring (73). The drive seat (71) is fixedly installed on one side of the mounting base (41). A drive cavity (711) is provided inside the drive seat (71). The drive block (72) is slidably connected to the drive cavity (711) through the drive spring (73). One end of the drive block (72) abuts against the transmission protrusion, and the other end of the drive block (72) abuts against the drive mechanism (6).

4. The air intake structure of a distribution box according to claim 3, characterized in that: The air inlet pipe (2) is provided with a drive groove (21). The drive mechanism (6) includes a drive rod (61) and an adjusting spring. The drive rod (61) is slidably connected to the drive groove (21) through the adjusting spring. One end of the drive rod (61) is fixedly connected to the cleaning cover (32), and the other end is used to abut against the drive block (72).

5. The air intake structure of a distribution box according to claim 4, characterized in that: The drive seat (71) is provided with a guide groove (712), and the drive block (72) is provided with a guide slope on the side facing the drive mechanism (6). When the cooling fan (4) is flipped from the cooling station to the cleaning station, the drive rod (61) moves along the guide groove (712) to abut against the drive block (72).

6. The air intake structure of a distribution box according to claim 4, characterized in that: The cleaning cover (32) is provided with multiple sets of cleaning holes (321) and cleaning blocks (322), and the positioning cover (31) is provided with multiple sets of positioning holes (311) and positioning blocks (312). The positioning holes (311) correspond to the cleaning holes (321). During the repeated movement of the cleaning cover (32), the positioning blocks (312) are inserted into the cleaning holes (321), and the cleaning blocks (322) are inserted into the positioning holes (311).

7. The air intake structure of a distribution box according to claim 1, characterized in that: The cleaning cover (32) is rotatably connected to a rotating cylinder (33) on the side opposite to the positioning cover (31). The inner wall of the air inlet pipe (2) is provided with a spiral groove (22). The spiral groove (22) extends along the axial direction of the air inlet pipe (2). The rotating cylinder (33) is provided with a rotating arm (34) that slides in the spiral groove (22). As the cleaning hood (32) moves repeatedly, the rotating cylinder (33) rotates along the spiral groove (22).

8. The air intake structure of a distribution box according to any one of claims 1-7, characterized in that: The air inlet pipe (2) is T-shaped.

9. The air intake structure of a distribution box according to claim 8, characterized in that: One end of the air inlet pipe (2) is connected to the box body (1), and the other end of the air inlet pipe (2) is detachably connected to an adsorption component (23). An air inlet is provided at the middle end of the air inlet pipe (2).

10. The air intake structure of a distribution box according to claim 1, characterized in that: The adjustment mechanism (5) includes an adjustment motor and a reducer. The middle part of the cooling fan (4) is connected to the mounting groove (11) through a rotating shaft. The adjustment motor is connected to the rotating shaft through the reducer.

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