Power distribution cabinet for power transmission and transformation

Abstract

The invention discloses a power distribution cabinet for power transmission and transformation, and belongs to the technical field of power distribution cabinets, the power distribution cabinet for power transmission and transformation comprises a cabinet body, the cabinet body is provided with a plurality of air inlets and air outlets, and fans are fixed in the air inlets and the air outlets. Wherein the air inlet and the air outlet directly face each other and are obliquely arranged on the cabinet body, and convection is generated when the fan is started. A partition plate is further arranged on the side, close to the air inlet, in the cabinet body, a dust filtering space is defined by the partition plate and the cabinet body, and a dust filtering assembly is arranged in the dust filtering space. The power distribution cabinet has the advantages that the air inlet faces the air outlet, convection is generated when the fan is started, heat of all electric appliance assemblies in the power distribution cabinet is directly taken away, and cooling is achieved. Meanwhile, opposite convection can reduce airflow resistance, airflow evenly passes through the heating assembly, turbulent flow is reduced, and therefore the heat exchange efficiency is improved. Meanwhile, the dust filtering assembly arranged in the dust filtering space enables dust in the air to be effectively blocked. Dust is prevented from being accumulated on the heating assembly, and the heat exchange efficiency is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of power distribution cabinets, and in particular to a power distribution cabinet for power transmission and transformation. Background Art

[0002] As core devices in the power transmission and distribution chain of power systems, power distribution cabinets primarily handle power reception, distribution, control, and protection. They are widely used in key power transmission and transformation nodes such as substations, transmission line switchyards, and high-voltage distribution rooms. Compared to traditional low-voltage distribution cabinets, these applications often involve high voltage and high current. Therefore, they place higher demands on heat dissipation. Traditional power transmission, transformation, and distribution cabinets utilize a passive cooling design, creating natural convection between the inside and outside of the cabinet through heat dissipation vents. However, due to the limited heat exchange efficiency of natural convection, this approach cannot meet the cooling requirements of high-power equipment. To improve cooling efficiency, existing technologies incorporate fans in the heat dissipation vents to create forced convection systems.

[0003] However, this solution has its shortcomings: On the one hand, existing fan layouts often have problems with the misalignment of the air inlet and outlet, resulting in a non-linear distribution of the airflow path, forming vortex effects and airflow dead zones within the cabinet. This irregular airflow movement hinders the effective removal of heat, causing localized heat accumulation and heat retention, and the actual improvement in heat dissipation efficiency is limited. On the other hand, fan ports typically adopt an open structure. In dusty environments, particulate pollutants in the air can easily enter the interior of the cabinet with the airflow. Dust continues to accumulate on the surface of electrical equipment, forming a heat dissipation thermal resistance, further exacerbating the performance degradation of the heat dissipation system. Summary of the Invention

[0004] In view of the above-mentioned technical deficiencies, the purpose of the present invention is to provide a power distribution cabinet for power transmission and transformation, which is used to solve the problem of low heat dissipation efficiency in the prior art.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solution: The present invention provides a distribution cabinet for power transmission and transformation, comprising: a plurality of air inlets and a plurality of air outlets arranged on a cabinet body, and fans are fixed in the air inlets and the air outlets; a partition, the partition is fixed in the cabinet body, and the partition is located on the side of the cabinet body close to the air inlet; wherein the air inlet and the air outlet are both obliquely arranged on the cabinet body, and the air inlet is opposite to the air outlet to form an air flow channel; a dust filter space is formed between the partition and the cabinet body, and a dust filter component is provided in the dust filter space.

[0006] Optionally, the cabinet has a first inclined surface and a second inclined surface, the air inlet is located on the first inclined surface, the air outlet is located on the second inclined surface, and an air flow channel is formed between the air inlet and the air outlet.

[0007] Optionally, there is a height difference between the first inclined surface and the second inclined surface, and the first inclined surface and the second inclined surface are parallel.

[0008] Optionally, the partition includes an inclined portion and a vertical portion, the inclined portion is parallel to the first inclined surface, the vertical portion is parallel to the side of the cabinet, the vertical portion and the side and bottom of the cabinet together form a groove, and the groove and the inclined portion, the side wall of the cabinet and the first inclined surface together form a dust filtering space.

[0009] Optionally, a plurality of openings are provided on the inclined portion, and the dust filter assembly includes a dust filter net, which is fixed in the openings.

[0010] Optionally, a dust collection box is slidably arranged in the groove.

[0011] Optionally, a lift-stop plate is further provided in the groove, and the lift-stop plate is obliquely provided above the dust collecting box, with a gap between the lift-stop plate and the side wall of the groove.

[0012] Optionally, a cabinet door is hingedly provided on the cabinet body, and a transparent observation window is provided on the cabinet door at a position corresponding to the dust filtering space.

[0013] Optionally, an air inlet cover is provided on the cabinet body at a position corresponding to the air inlet, the bottom surface of the air inlet cover has a slope, a sewage outlet is provided on the air inlet cover for use with the slope, and a baffle for use with the air inlet cover is also fixed on the cabinet body.

[0014] Optionally, an air outlet cover is further provided on the outside of the cabinet at a position corresponding to the air outlet.

[0015] The beneficial effects of the present invention are: The air inlet and outlet of the present invention are inclined and arranged directly on the cabinet. When the fan is started, linear convection air can be generated, which reduces air flow resistance, allows the air flow to pass through the heating component evenly, reduces turbulence and thus improves heat exchange efficiency.

[0016] At the same time, the present invention uses partitions to enclose the cabinet body and the air inlet to form a dust filter space. This dust filter space can effectively intercept dust entering from the air inlet and collect it in the dust filter assembly, thus preventing it from adhering to the equipment inside the cabinet and causing heat dissipation resistance, further improving heat dissipation efficiency.

[0017] In addition, the present invention also provides an air inlet cover and an air outlet cover at the air inlet and air outlet respectively to prevent other debris from directly entering the interior of the cabinet through the air inlet and air outlet. At the same time, it also optimizes the air flow space, further improving the heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 The present invention is a three-dimensional structural diagram of a power distribution cabinet for power transmission and transformation.

[0020] Figure 2 This is a front structural diagram of a power distribution cabinet for power transmission and transformation according to the present invention.

[0021] Figure 3 This is a front cross-sectional view of a power distribution cabinet for power transmission and transformation according to the present invention.

[0022] Figure 4 The figure is a three-dimensional cross-sectional view of a power distribution cabinet for power transmission and transformation according to the present invention.

[0023] Figure 5 The present invention is a power distribution cabinet for power transmission and transformation Figure 4 Enlarged view of point A in the middle.

[0024] Figure 6 The figure is a side cross-sectional view of a power distribution cabinet for power transmission and transformation according to the present invention.

[0025] Description of reference numerals: 1. Cabinet body; 11. First inclined surface; 12. Air inlet; 13. Second inclined surface; 14. Air outlet; 2. Cabinet door; 21. Observation window; 3. Air inlet hood; 31. Sewage outlet; 32. Slope; 33. Baffle; 4. Air outlet hood; 5. Fan; 6. Partition; 61. Inclined portion; 62. Vertical portion; 63. Groove; 7. Dust filter; 71. Dust collection box; 72. Stop plate. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] As mentioned above, in order to improve heat dissipation, existing technologies usually choose to open heat dissipation ports on the cabinet and install fans. However, the defects of this heat dissipation method are: on the one hand, the existing fan layout generally has the problem of misalignment between the air inlet and the air outlet, resulting in a non-linear distribution of the air flow channel, forming a vortex effect and airflow dead zone in the cabinet. This irregular airflow movement hinders the effective discharge of heat, causing local heat accumulation and heat retention, and the actual heat dissipation efficiency is limited. On the other hand, the fan port usually adopts an open structure. In a dusty environment, particulate pollutants in the air can easily enter the interior of the cabinet with the airflow. Dust continues to accumulate on the surface of electrical equipment, forming a heat dissipation thermal resistance, further exacerbating the performance degradation of the heat dissipation system.

[0028] Therefore, the present invention provides a power distribution cabinet for power transmission and transformation that solves the above-mentioned problem by optimizing the airflow channel and reducing the continuous accumulation of dust on the surface of electrical equipment. The present invention solves the problem in the following manner.

[0029] Example 1: Please refer to the instruction manual Figures 1 to 6 As shown in the figure, the first embodiment of the present invention provides a power distribution cabinet for power transmission and transformation, which includes a cabinet body 1. The cabinet body 1 is hinged with a cabinet door 2, which is provided with a display screen, a number of buttons and indicator lights, and is electrically connected to the electrical equipment placed in the cabinet body 1. A first inclined surface 11 and a second inclined surface 13 are respectively provided on both sides of the cabinet body 1 (compared to the cabinet door 2). The first inclined surface 11 and the second inclined surface 13 are parallel to and correspond to each other, and the angles between them and the bottom surface are both 45 degrees. A plurality of air inlets 12 are provided on the first inclined surface 11, and a plurality of air outlets 14 are provided on the second inclined surface 13. The air inlets 12 are located at a low position, and the air outlets 14 are located at a high position. External cold air enters the interior of the cabinet body 1 from the air inlet 12, is heated by the electrical equipment in the cabinet body 1 and becomes hot air, which rises and finally flows out from the air outlet 14.

[0030] In order to speed up this process, Figure 3As shown, in this first embodiment, fans 5 are fixed inside the air inlet 12 and the air outlet 14. Since the first inclined surface 11 and the second inclined surface 13 are parallel and corresponding to each other, the air inlet 12 and the air outlet 14 located thereon are also directly opposite each other, and similarly, the fans 5 are also directly opposite each other. The fan 5 located at the air inlet 12 draws air from outside the cabinet 1 into the cabinet 1, and the fan 5 located at the air outlet 14 exhausts air from inside the cabinet 1 to outside the cabinet 1. The combination of the two forms a flowing air flow channel inside the cabinet 1, and this air flow channel is a straight air flow channel. This straight air flow channel flows through the area where the heat of the electrical equipment in the cabinet 1 is most concentrated. As a result, when the cold air enters the cabinet 1, it directly acts on the area where the heat is most concentrated, removes the heat, and finally flows out from the air outlet 14. This reduces the turbulence effect caused by the airflow hitting the wall inside the cabinet 1 and improves the heat dissipation efficiency.

[0031] Example 2: Based on the above embodiment, in order to further explain the technical solution clearly and completely, the present invention also provides a second embodiment. In this second embodiment, Figures 3 to 5 As shown, a partition 6 is provided in the cabinet 1 near the first inclined surface 11 and the air inlet 12. The partition 6 includes an inclined portion 61 and a vertical portion 62. The inclined portion 61 is parallel to the first inclined surface 11 and is fixed to the inner side wall of the cabinet 1; the vertical portion 62 is parallel to the side surface of the cabinet 1 and is fixed to the inner bottom wall of the cabinet 1. The vertical portion 62 and the side and bottom surfaces of the cabinet 1 together form a groove 63. The groove 63, the inclined portion 61, the side wall of the cabinet 1, and the first inclined surface 11 together form a dust filter space. A dust filter assembly is provided in the dust filter space. The dust filter assembly blocks dust and impurities in the air entering the air inlet 12, thereby preventing them from directly entering the cabinet 1 and adhering to and accumulating on electrical equipment, thereby causing heat to be difficult to dissipate.

[0032] like Figure 4 As shown, in this second embodiment, the inclined portion 61 is provided with a plurality of openings, and the dust filter assembly includes a dust filter 7, which is fixed within the openings. The angle between the inclined portion 61 and the dust filter 7 thereon and the ground is also 45°. That is, the dust filter 7 and the fan 5 in the air inlet 12 on the first inclined surface 11 are parallel. Therefore, when the fan 5 draws air from the outside, the incoming air mixed with dust is carried vertically onto the dust filter 7.

[0033] At the same time, a dust box 71 is slidingly provided in the groove 63. The dust box 71 is located directly below the dust filter 7. When a certain amount of dust accumulates on the dust filter 7, some of the dust will fall and enter the interior of the dust box 71 to be collected. Figure 1 or Figure 2As shown, a transparent observation window 21 is provided at the position of the cabinet door 2 corresponding to the aforementioned dust filter space, so that the user can observe the dust collection situation in the dust filter net 7 and the dust box 71. When the maintenance standard is reached, the cabinet door 2 can be opened for cleaning or replacement.

[0034] A vibration motor (not shown) is also attached to the vertical portion 62 (on the side outside the dust filter space). This motor comprises a motor body and an eccentric weight connected to the motor's output shaft. When the motor body is powered, the output shaft rotates at high speed, which in turn drives the eccentric weight, generating vibrations. This vibration is then transmitted to the vertical portion 62 and further to the inclined portion 61 and dust filter 7, ultimately vibrating the dust filter 7, causing dust accumulated thereon to fall off and eventually enter the dust collection box 71.

[0035] Under the influence of the fan 5 in the air inlet 12, when the fan 5 is working, airflow will be generated in the dust filter space. This will cause the dust to float away. Therefore, in order to alleviate this problem, the dust in the dust box 71 is prevented from floating out. Figure 4 or Figure 5 As shown, a stop plate 72 is also provided in the groove 63. The stop plate 72 is tilted above the dust box 71, with its higher side located at the air inlet 12, and extends from high to low to the inside of the groove 63, so that an acute triangle stop space is formed between the stop plate 72 and the cabinet 1. There is a gap between the stop plate 72 and the side wall of the groove 63. When dust falls from the dust filter 7, part of it passes through this gap and enters the dust box 71, and the other part falls onto the tilted stop plate 72, slides along the stop plate 72 to the gap, and then enters the dust box 71. When airflow occurs, the airflow drives the dust to rise, and the dust will float from the dust box 71 into the stop space and circulate therein. This prevents it from floating in the dust filter space.

[0036] Example 3: Based on the above embodiment, in order to further clearly and completely describe the technical solution therein, the present invention further provides a third embodiment. In this third embodiment, Figures 1 to 6 As shown, an air inlet hood 3 is provided on the outside of the cabinet 1 at a position corresponding to the air inlet 12. An upwardly open air inlet passage is formed between the air inlet hood 3, the cabinet 1, and the first inclined surface 11. To prevent debris and rainwater from falling, a baffle 33 is fixed to the cabinet 1 above this air inlet passage. Therefore, when the fan 5 in the air inlet 12 is running, the negative pressure causes air to enter the interior of the cabinet 1 uniformly through the air inlet passage, rather than from all directions, thereby optimizing the flow direction of the incoming air.

[0037] Inevitably, impurities such as rainwater and small stones will enter the upward-open air inlet channel. In order to alleviate this problem, Figure 6 As shown in the third embodiment, the bottom surface of the air inlet cover 3 has a slope 32, and the slope 32 is one high and one low. At the lower part, a sewage outlet 31 is provided. The sewage outlet 31 is connected to the air inlet channel from the lower part of the slope 32. When water and sewage accumulate in the air inlet channel, they can be directly discharged from the sewage outlet 31.

[0038] Correspondingly, like the air inlet channel, an air outlet cover 4 is also provided on the cabinet body 1 at the position corresponding to the air outlet 14. An air outlet channel is formed between the air outlet cover 4, the cabinet body 1 and the second inclined surface 13, which also achieves the above-mentioned effect of optimizing the air flow direction.

[0039] Therefore, in summary, the present invention and its embodiments have the following advantages over conventional technologies, including but not limited to: The air inlet 12 and the air outlet 14 of the present invention are inclined and arranged directly on the cabinet 1. When the fan 5 is started, linear convection air can be generated, which reduces air flow resistance, allows the air flow to pass through the heating component evenly, reduces turbulence and thus improves heat exchange efficiency.

[0040] At the same time, the present invention utilizes the partition 6 to enclose the cabinet body 1 and the air inlet 12 to form a dust filter space. This dust filter space can effectively intercept dust entering from the air inlet 12 and collect it in the dust filter assembly, thereby preventing it from adhering to the equipment in the cabinet and thus forming heat dissipation resistance, further improving heat dissipation efficiency.

[0041] In addition, the present invention also provides an air inlet cover 3 and an air outlet cover 4 at the air inlet 12 and the air outlet 14, respectively, to prevent other debris from directly entering the interior of the cabinet 1 through the air inlet 12 and the air outlet 14. At the same time, it also optimizes the air flow space, further improving the heat dissipation efficiency.

[0042] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the present invention and its equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A power distribution cabinet for power transmission and transformation, characterized in that: include: A plurality of air inlets (12) and a plurality of air outlets (14) are provided on the cabinet body (1), and fans (5) are fixed in the air inlets (12) and the air outlets (14); A partition (6), the partition (6) being fixed in the cabinet (1), and the partition (6) being located on a side of the cabinet (1) close to the air inlet (12); The air inlet (12) and the air outlet (14) are both arranged obliquely on the cabinet (1), and the air inlet (12) faces the air outlet (14) to form an air flow channel; A dust filtering space is formed between the partition plate (6) and the cabinet body (1), and a dust filtering component is provided in the dust filtering space.

2. A power distribution cabinet for power transmission and transformation according to claim 1, characterized in that: The cabinet (1) has a first inclined surface (11) and a second inclined surface (13); the air inlet (12) is located on the first inclined surface (11); the air outlet (14) is located on the second inclined surface (13); and an air flow channel is formed between the air inlet (12) and the air outlet (14).

3. A power distribution cabinet for power transmission and transformation according to claim 2, characterized in that: There is a height difference between the first inclined surface (11) and the second inclined surface (13), and the first inclined surface (11) and the second inclined surface (13) are parallel.

4. A power distribution cabinet for power transmission and transformation according to claim 1, characterized in that: The partition (6) comprises an inclined portion (61) and a vertical portion (62), the inclined portion (61) and the first inclined surface (11) are parallel, the vertical portion (62) and the side surface of the cabinet (1) are parallel, the vertical portion (62) and the side surface and bottom surface of the cabinet (1) together form a groove (63), and the groove (63) and the inclined portion (61), the side wall of the cabinet (1) and the first inclined surface (11) together form a dust filtering space.

5. A power distribution cabinet for power transmission and transformation according to claim 4, characterized in that: A plurality of openings are provided on the inclined portion (61), and the dust filter assembly comprises a dust filter screen (7), wherein the dust filter screen (7) is fixed in the openings.

6. A power distribution cabinet for power transmission and transformation according to claim 4, characterized in that: A dust collection box (71) is slidably arranged in the groove (63).

7. A power distribution cabinet for power transmission and transformation according to claim 6, characterized in that: A lifting plate (72) is also provided in the groove (63). The lifting plate (72) is tilted and arranged above the dust collecting box (71). There is a gap between the lifting plate (72) and the side wall of the groove (63).

8. The power distribution cabinet for power transmission and transformation according to claim 1, characterized in that: A cabinet door (2) is hingedly provided on the cabinet body (1), and a transparent observation window (21) is provided on the cabinet door (2) at a position corresponding to the dust filtering space.

9. The power distribution cabinet for power transmission and transformation according to claim 1, characterized in that: An air inlet hood (3) is provided outside the cabinet (1) at a position corresponding to the air inlet (12); the bottom surface of the air inlet hood (3) has a slope (32); a sewage outlet (31) used in conjunction with the slope (32) is provided on the air inlet hood (3); and a baffle (33) used in conjunction with the air inlet hood (3) is also fixed on the cabinet (1).

10. The power distribution cabinet for power transmission and transformation according to claim 1, characterized in that: An air outlet cover (4) is also provided outside the cabinet (1) at a position corresponding to the air outlet (14).

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