CN214673825U - Heat dissipation neutral point resistance cabinet - Google Patents
Heat dissipation neutral point resistance cabinet Download PDFInfo
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- CN214673825U CN214673825U CN202120799862.0U CN202120799862U CN214673825U CN 214673825 U CN214673825 U CN 214673825U CN 202120799862 U CN202120799862 U CN 202120799862U CN 214673825 U CN214673825 U CN 214673825U
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- heat dissipation
- cabinet
- neutral point
- dust cover
- air inlet
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Abstract
The utility model discloses a heat dissipation neutral point resistance cabinet, including the cabinet body, still including setting up at the heat dissipation case at cabinet body top, setting up the air inlet subassembly in cabinet side wall below, demountable installation has radiator fan on the lateral wall of heat dissipation case, the air inlet subassembly is including seting up air intake, dust cover and the filtration yardage roll on cabinet side wall, a plurality of fresh air inlets have been seted up on the dust cover the pivot is installed to the inside top of dust cover, the both ends of pivot are passed through the bearing and are fixed on the lateral wall of dust cover, it installs to filter the yardage roll in the pivot the bottom of dust cover is provided with the slot hole, the slot hole is located under the pivot, just the length of slot hole is greater than filter the width of yardage roll. The heat that produces neutral point resistance cabinet during operation in time scatters outside the cabinet, prevents that the heat gathering from causing the damage to other electrical components in the cabinet.
Description
Technical Field
The utility model relates to a resistance cabinet technical field especially relates to a heat dissipation neutral point resistance cabinet.
Background
The system with the neutral point grounded through the resistor cabinet can effectively limit the clearance arc grounding overvoltage, reduce the system operation overvoltage, eliminate the system resonance overvoltage, facilitate the configuration of unidirectional grounding fault protection, and effectively cut off a fault line in a short time, thereby reducing the insulation level of system equipment, prolonging the service life of the system equipment, improving the safety and reliability of the system operation and being widely applied.
When the neutral point resistance cabinet works, high temperature of hundreds of degrees or even thousands of degrees is generated, the rated through-current time 10S of the stainless steel resistor is specified by the power industry standard DL/T780-2001, and the temperature rise is not more than 780K; and the through-flow time is 2h under the continuous operation current, and the temperature rise is not more than 385K. Such high temperatures, without good ventilation and heat dissipation designs, can cause damage to the secondary circuits in the cabinet and to the plastic-sprayed paint on the cabinet due to the high temperatures.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the purpose prevents that the heat gathering from causing the damage to other electrical components in the cabinet outside solving the heat that neutral point resistance cabinet during operation produced in time effluvium cabinet, provides a heat dissipation neutral point resistance cabinet.
In order to achieve the above purpose, the utility model adopts the following technical scheme to realize:
the utility model provides a heat dissipation neutral point resistance cabinet, includes the cabinet body, still including setting up at the heat dissipation case at cabinet body top, setting up the air inlet subassembly in cabinet side wall below, demountable installation has radiator fan on the lateral wall of heat dissipation case, the air inlet subassembly is including seting up air intake, dust cover and the filtration yardage roll on cabinet side wall, a plurality of fresh air inlets have been seted up on the dust cover the pivot is installed to the inside top of dust cover, the both ends of pivot are passed through the bearing and are fixed on the lateral wall of dust cover, it installs to filter the yardage roll in the pivot the bottom of dust cover is provided with the slot hole, the slot hole is located under the pivot, just the length of slot hole is greater than the width of filtering the yardage roll.
Furthermore, an opening is formed in the side wall of the heat dissipation box, the heat dissipation fan comprises a mounting frame and a fan, and clamping grooves matched with the side wall of the heat dissipation box are formed in the upper end and the lower end of the mounting frame, so that the heat dissipation fan can be mounted on the opening through the mounting frame.
Furthermore, a groove is arranged at the upper end or the lower end of the opening, a clamping table is arranged in the groove, and a compression spring is arranged between the clamping table and the bottom of the groove.
Furthermore, the width of the clamping table is slightly smaller than that of the clamping groove, so that the clamping table can be clamped inside the clamping groove.
Further, an air inlet window is installed at the air inlet.
Furthermore, a heat dissipation window is arranged on the side wall of the heat dissipation box.
Further, a resistor and a current transformer are arranged inside the cabinet body.
The utility model discloses following beneficial effect has:
1) an air inlet assembly is arranged below the resistance cabinet body, and air entering the interior of the resistance cabinet body is filtered through matching of a wind shield and a filter cloth roll, so that dust in the interior of the resistance cabinet is reduced; after the electric resistance cabinet is used for a period of time, the filter cloth roll is pulled downwards to rotate, so that the subsequent clean filter cloth roll is positioned at the air inlet, dust is continuously prevented from entering the cabinet body of the electric resistance cabinet, and the filtering and heat dissipation effects are improved.
2) According to the principle that hot air floats upwards and cold air sinks, the radiating fan is arranged at the top of the resistor cabinet, air flow is promoted to enter from the air inlet below the cabinet body, hot air is discharged from the radiating window at the top, and the radiating effect is improved.
Drawings
The following detailed description of embodiments of the present invention is provided with reference to the accompanying drawings:
fig. 1 is a front view of the heat dissipation neutral point resistor cabinet of the present invention;
fig. 2 is a side view of the heat dissipation neutral point resistance cabinet of the present invention;
fig. 3 is a schematic structural view of a dust cover in the heat dissipation neutral point resistor cabinet of the present invention;
fig. 4 is a schematic structural view of a heat dissipation box in the heat dissipation neutral point resistance cabinet of the present invention;
FIG. 5 is a schematic view of an installation structure of a heat dissipating fan in the heat dissipating box of FIG. 4;
fig. 6 is the internal structure diagram of the heat dissipation neutral point resistor cabinet of the present invention.
In the figure, a cabinet body 1, a heat dissipation box 2, an air inlet assembly 3, a heat dissipation fan 4, an air inlet 5, a dust cover 6, a filter cloth roll 7, a rotating shaft 8, a long hole 9, an air inlet hole 10, an air inlet window 11, a resistor 12, a current transformer 13, a heat dissipation window 14, an opening 201, a groove 202, a clamping table 203, a compression spring 204, a mounting rack 401, a fan 402 and a clamping groove 403 are arranged.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that the position of all the mounting elements in the embodiments of the present invention is only illustrated for explaining the relative position relationship between the components in a specific posture as shown in the drawings, and if the specific position is changed, the connection of the components is changed accordingly.
As shown in fig. 1-5, a heat dissipation neutral point resistance cabinet, including the cabinet body 1, still including setting up at the heat dissipation case 2 at cabinet body 1 top, setting up the air inlet subassembly 3 in cabinet body 1 lateral wall below, demountable installation has radiator fan 4 on the lateral wall of heat dissipation case 2, air inlet subassembly 3 is including seting up air intake 5, dust cover 6 and the filtration yardage roll 7 on the cabinet body 1 lateral wall, a plurality of fresh air inlets 10 have been seted up on the dust cover 6 pivot 8 is installed to the inside top of dust cover 6, the both ends of pivot 8 are passed through the bearing and are fixed on the lateral wall of dust cover 6, the filtration yardage roll 7 is installed in pivot 8 the bottom of dust cover 6 is provided with slot hole 9, slot hole 9 is located under pivot 8, just the length of slot hole 9 is greater than the width of filtration yardage roll 7.
The utility model discloses in set up air inlet subassembly 3 in the 1 below of the resistance cabinet body, filter the air that gets into the 1 inside of the cabinet body from air intake 5 through windshield 6 with the cooperation of filtering yardage roll 7, reduce the inside dust of resistance cabinet.
The bottom of filtering yardage roll 7 passes in slot hole 9, after using a period, through dragging filtering yardage roll 7 downwards, makes it rotate along with pivot 8, and filtering yardage roll 7 after the bottom is used drags to the outside of dust cover 6, makes follow-up clean filtering yardage roll 7 be located air intake 5 department, continues to block the dust and gets into the internal of resistance cabinet, improves filtration, radiating effect.
As shown in fig. 4, in an embodiment of the present invention, an opening 201 is disposed on the side wall of the heat dissipation box 2, the heat dissipation fan 4 includes a mounting frame 401 and a fan 402, and a slot 403 matched with the side wall of the heat dissipation box 2 is disposed at the upper end and the lower end of the mounting frame 401, so that the heat dissipation fan 4 can be mounted on the opening 201 through the mounting frame 401.
According to the principle that hot air floats upwards and cold air sinks, the radiating fan is arranged at the top of the resistor cabinet, air flow is promoted to enter from the air inlet below the cabinet body, hot air is discharged from the radiating window at the top, and the radiating effect is improved. Meanwhile, the heat dissipation fan 4 is detachably mounted on the side wall of the heat dissipation box 2, so that the heat dissipation fan is convenient to detach and mount and is convenient to clean or maintain and replace.
As shown in fig. 5, in the present embodiment, a groove 202 is provided at an upper end or a lower end of the opening 201, a locking platform 203 is provided in the groove 202, and a compression spring 204 is provided between the locking platform 203 and the bottom of the groove 202.
The width of the card platform 203 is slightly smaller than that of the card slot 403, so that the card platform 203 can be clamped in the card slot 403.
Through the cooperation of ka tai 203 with recess 202, improve the installation steadiness to radiator fan 4, the installation is convenient.
As shown in fig. 2, in the technical solution of the present invention, an air inlet window 11 is installed at the air inlet 5.
As shown in fig. 3, in the technical solution of the present invention, a heat radiation window 14 is provided on the side wall of the heat radiation box 2.
As shown in fig. 6, a resistor 12 and a current transformer 13 are provided inside the cabinet 1.
The foregoing shows and describes the general principles, essential features, and features of the invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the description of the above embodiments and the description is only illustrative of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, and these changes and modifications are all within the scope of the present invention as claimed. The scope of the invention is to be protected by the following claims and their equivalents.
Claims (7)
1. The heat dissipation neutral point resistance cabinet comprises a cabinet body (1) and is characterized by further comprising a heat dissipation box (2) arranged at the top of the cabinet body (1) and an air inlet assembly (3) arranged below the side wall of the cabinet body (1), wherein a heat dissipation fan (4) is detachably mounted on one side wall of the heat dissipation box (2), the air inlet assembly (3) comprises an air inlet (5), a dust cover (6) and a filtering cloth roll (7) which are arranged on the side wall of the cabinet body (1), a plurality of air inlet holes (10) are formed in the dust cover (6), a rotating shaft (8) is mounted above the inner part of the dust cover (6), two ends of the rotating shaft (8) are fixed on the side wall of the dust cover (6) through bearings, the filtering cloth roll (7) is mounted on the rotating shaft (8), and a long hole (9) is formed in the bottom of the dust cover (6), the long hole (9) is positioned under the rotating shaft (8), and the length of the long hole (9) is greater than the width of the filter cloth roll (7).
2. The heat dissipating neutral point resistance cabinet of claim 1, wherein: the heat dissipation box is characterized in that an opening (201) is formed in the side wall of the heat dissipation box (2), the heat dissipation fan (4) comprises a mounting frame (401) and a fan (402), and clamping grooves (403) matched with the side wall of the heat dissipation box (2) are formed in the upper end and the lower end of the mounting frame (401), so that the heat dissipation fan (4) can be mounted on the opening (201) through the mounting frame (401).
3. The heat dissipating neutral point resistance cabinet of claim 2, wherein: a groove (202) is formed in the upper end or the lower end of the opening (201), a clamping table (203) is arranged in the groove (202), and a compression spring (204) is arranged between the clamping table (203) and the bottom of the groove (202).
4. The heat dissipating neutral point resistance cabinet of claim 3, wherein: the width of the clamping table (203) is slightly smaller than that of the clamping groove (403), so that the clamping table (203) can be clamped in the clamping groove (403).
5. The heat dissipating neutral point resistance cabinet of claim 1, wherein: an air inlet window (11) is arranged at the air inlet (5).
6. The heat dissipating neutral point resistance cabinet of claim 1, wherein: and a heat radiation window (14) is arranged on the side wall of the heat radiation box (2).
7. The heat dissipating neutral point resistance cabinet of claim 1, wherein: a resistor (12) and a current transformer (13) are arranged in the cabinet body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120799862.0U CN214673825U (en) | 2021-04-19 | 2021-04-19 | Heat dissipation neutral point resistance cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120799862.0U CN214673825U (en) | 2021-04-19 | 2021-04-19 | Heat dissipation neutral point resistance cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214673825U true CN214673825U (en) | 2021-11-09 |
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ID=78464558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120799862.0U Active CN214673825U (en) | 2021-04-19 | 2021-04-19 | Heat dissipation neutral point resistance cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214673825U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115548886A (en) * | 2022-09-28 | 2022-12-30 | 江苏泽宇电力设计有限公司 | Auxiliary detection type small-resistance grounding resistance cabinet |
-
2021
- 2021-04-19 CN CN202120799862.0U patent/CN214673825U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115548886A (en) * | 2022-09-28 | 2022-12-30 | 江苏泽宇电力设计有限公司 | Auxiliary detection type small-resistance grounding resistance cabinet |
| CN115548886B (en) * | 2022-09-28 | 2024-03-08 | 江苏泽宇电力设计有限公司 | Auxiliary detection type small-resistance grounding resistance cabinet |
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