Ring main unit convenient for maintenance and heat dissipation

Abstract

The utility model provides a ring main unit convenient for maintenance and heat dissipation, which comprises a cabinet body, a partition plate divides the cabinet body into a device space and a heat dissipation space, and a plurality of capacitor fixing seats are fixedly arranged on the partition plate; a heat dissipation channel is arranged in the device space, the device space and the heat dissipation space are communicated through the heat dissipation channel, the heat dissipation channel comprises a cold plate, and a plurality of mounting rails and wire slots are fixedly arranged on the cold plate; fan blades are arranged on the side wall of the heat dissipation space, and when the fan blades rotate, air in the device space can enter the heat dissipation space through the heat dissipation channel. According to the utility model, the mounting rail is fixed on the cold plate of the heat dissipation channel, so that the device is adjacent to or even attached to the heat dissipation channel, and the device can dissipate heat more quickly.

Description

Technical Field

[0001] The utility model belongs to the field of ring network cabinet design, in particular to a ring network cabinet which is convenient for maintenance and heat dissipation. Background Art

[0002] A ring main unit is a group of electrical equipment that is installed in a metal or non-metal insulated cabinet or made into an assembled interval ring main unit. It is equipped with composite switches, fuses, control circuits and protection devices. In order to reduce line losses and take into account the voltage at the end of the circuit, corresponding capacitors will be connected to the circuit in the ring main unit, and capacitance compensation will be set for electrical appliances. In addition, since the ring main unit itself has the characteristics of simple structure, small size, low price, etc., and the ring main unit is small in size, it is necessary to consider the various components installed therein during design and production to meet the needs of fixing, connecting, and cooling various components. In the existing ring main units, most of them fix the capacitor at the bottom of the cabinet, and fix the fuse and other components connected to the capacitor on the beam above the capacitor. Due to the large number of capacitors, they are arranged in a matrix at the bottom of the capacitor cabinet, and multiple groups of fuses and relays are set side by side in the cabinet. When connecting the wires, the front capacitor wires are connected to the relays and fuses below; the rear capacitor wires are connected to the relays and fuses above. In this way, during the maintenance process, the rear capacitors and the lines connected to the capacitors will be blocked by the front capacitors and the components connected to them, making it inconvenient to check. In addition, since the cabinets are generally small and the lines are arranged tightly, it is not conducive to heat dissipation and maintenance between components. Utility Model Content

[0003] In view of this, the utility model aims to provide a ring main unit that is easy to inspect and dissipate heat, so as to facilitate observation of the connection relationship between the various lines in the ring main unit and improve the heat dissipation capacity of the ring main unit.

[0004] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0005] A ring network cabinet that is easy to inspect and dissipate heat comprises a cabinet body, a partition plate that divides the cabinet body into a device space and a heat dissipation space, a plurality of capacitor fixing seats are fixedly arranged on the partition plate; a heat dissipation channel is arranged in the device space, and the device space and the heat dissipation space are connected through the heat dissipation channel, the heat dissipation channel comprises a cold plate, a plurality of mounting rails and wire grooves are fixedly arranged on the cold plate; fan blades are arranged on the side walls of the heat dissipation space, and when the fan blades rotate, the air in the device space can enter the heat dissipation space through the heat dissipation channel.

[0006] Furthermore, there are two heat dissipation channels, and the heat dissipation channels are respectively arranged on both sides of the cabinet, the capacitor fixing seats are staggered on the partition plate, and a passing space is left between the capacitor fixing seats adjacent to the cold plate.

[0007] Furthermore, the cold plate extends a plurality of first fins into the heat dissipation channel.

[0008] Furthermore, an air inlet hole is opened on the side wall of the heat dissipation space, and the air inlet hole is arranged opposite to the fan blade.

[0009] Furthermore, the partition plate extends a plurality of second fins into the heat dissipation space.

[0010] Furthermore, the length direction of the second fin is parallel to the line between the air inlet and the fan blade.

[0011] Furthermore, the mounting rail includes a fixing portion, support portions extend outwardly from both sides of the fixing portion, and a flow groove is left between the two support portions. Corresponding through holes are opened on the fixing portion and the cold plate, and the flow groove can be connected to the cooling channel through the through holes.

[0012] Furthermore, an air intake grille is provided on a side wall of the device space.

[0013] Compared with the prior art, the ring main unit that is easy to maintain and dissipate heat described in the utility model has the following advantages:

[0014] The utility model adopts the method of fixing the mounting rail on the cold plate of the heat dissipation channel, so that the device is adjacent to or even attached to the heat dissipation channel, so as to facilitate faster heat dissipation of the device;

[0015] The mounting rails are set on both sides of the cabinet so that the components and leads are exposed to the field of vision, preventing the leads and components from blocking each other, making it easier for staff to inspect and repair;

[0016] Through holes are provided on the mounting rails so that airflow near the device can flow into the heat dissipation channel, thereby improving heat dissipation efficiency through air circulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0018] Figure 1 Schematic diagram of the overall structure of the ring main unit

[0019] Figure 2 It is a schematic diagram of the cold plate structure;

[0020] Figure 3 Schematic diagram of the partition plate structure;

[0021] Figure 4 Schematic diagram of the installation slot structure.

[0022] Description of reference numerals:

[0023] 1-cabinet; 11-air intake grille; 12-partition plate; 121-second fin; 13-device space; 14-heat dissipation space; 141-air intake hole; 15-partition plate; 16-capacitor fixing seat; 17-heat dissipation channel; 171-first fin; 172-cold plate; 173-mounting rail; 1731-fixing part; 1732-supporting part; 1733-circulation groove; 1734-through hole; 174-wire groove; 2-fan blade. DETAILED DESCRIPTION

[0024] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0025] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0027] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0028] The ring network cabinet for easy maintenance and heat dissipation described in the utility model includes a cabinet 1, a partition plate 1512 is provided at the bottom of the cabinet 1, and the partition plate 1512 divides the internal space of the cabinet 1 into a device space 13 and a heat dissipation space 14 arranged in a vertical direction, and a plurality of capacitor fixing seats 16 are fixed on the partition plate 1512, and the capacitor is installed on the partition plate 1512 through the capacitor fixing seat 16. The connection method of the capacitor fixing seat 16 or the capacitor and the partition plate 1512 is the same as the connection method of the existing capacitor and the ring network cabinet or the capacitor distribution cabinet, which will not be repeated here; specifically, in order to facilitate the maintenance of the components and lines, a plurality of mounting rails 173 and wire troughs 174 are provided on both sides of the component space 13 as needed, and the relays, thermal fuses and other components installed inside the ring network cabinet are respectively installed on the mounting rails 173, and the plurality of capacitor fixing seats 16 are distributed in the partition The two sides of the plate 1512 are provided with four capacitor fixing seats 16, and the capacitor fixing seats 16 on each side are staggered. Specifically, a through space is left between the capacitor fixing seats 16 adjacent to the side wall of the cabinet 1, and the lead of the capacitor that is far away from the side wall of the cabinet 1 can pass through the through space, and by bending and the like, the lead can pass through the wire groove 174 and be connected with the components on the mounting rail 173. More specifically, in this embodiment, four capacitor fixing seats 16 are respectively provided on both sides of the partition plate 1512, and the four capacitor fixing seats 16 are distributed in a parallelogram, so that the lead of the capacitor far away from the side wall of the cabinet 1 can be between the two capacitors close to the side wall. During the installation process, the capacitors on both sides of the partition plate 1512 are respectively connected to the components on the mounting rails 173 on both sides, so that the wires and the devices can be exposed within the field of vision, and the devices are distributed on both sides of the cabinet 1 to avoid mutual shielding.

[0029] The device space 13 is provided with heat dissipation channels 17 on both sides, and the device space 13 and the heat dissipation space 14 are connected through the heat dissipation channels 17. The side wall of the device space 13 is provided with an air intake grille 11. The heat dissipation channel 17 includes a cold plate 172. The mounting rail 173 and the wire groove 174 are respectively fixed on the cold plate 172, so that the components can be close to the cold plate 172 or fit with the cold plate 172. The cold plate 172 extends a plurality of first fins 171 into the heat dissipation channel 17. The side wall of the heat dissipation space 14 is provided with a fan blade 2, and an air intake grille 11 is opened on the side of the cabinet 1 opposite to the fan blade 2. Hole 141, the fan blade 2 can be driven by a motor. When the fan blade 2 rotates, the air in the device space 13 can enter the heat dissipation space 14 through the heat dissipation channel 17. Specifically, when the fan blade 2 rotates, the air flow speed in the heat dissipation space 14 is greater than the air flow speed in the heat dissipation channel 17. Therefore, the air pressure in the heat dissipation channel 17 is greater than the air pressure in the heat dissipation space 14, so that the air in the heat dissipation channel 17 and the device space 13 flows to the heat dissipation channel 17, and the outside air enters the device space 13 through the air intake grille 11, and the heat generated by the device is taken out by air circulation, thereby reducing the device temperature.

[0030] The partition plate 1512 extends a plurality of second fins 121 into the heat dissipation space 14. The heat generated during the operation of the capacitor is conducted to the second fins 121. When the gas in the heat dissipation space 14 flows, the airflow takes away the heat on the second fins 121. In order to improve the heat dissipation efficiency, the length direction of the second fins 121 is parallel to the line between the air inlet 141 and the fan blade 2.

[0031] The mounting rail 173 includes a fixing portion 1731, and support portions 1732 are respectively extended outwardly on both sides of the fixing portion 1731, and a circulation groove 1733 is left between the two support portions 1732. Corresponding through holes 1734 are opened on the fixing portion 1731 and the cold plate 172, and the circulation groove 1733 can be connected with the cooling channel through the through holes 1734. The device is fixed to the mounting rail 173 through the rear card slot and screws, and the device and the circulation groove 1733 surround to form a channel. When the air in the heat dissipation channel 17 flows, the air pressure in the circulation groove 1733 is greater than the air pressure in the heat dissipation channel 17, so that the hot air in the circulation groove 1733 enters the heat dissipation channel 17 through the through holes 1734, further improving the heat dissipation efficiency.

[0032] Those skilled in the art should know that the installation method between the device and the mounting rail 173 is a prior art and will not be described in detail here.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A ring main unit that is easy to inspect and dissipate heat, characterized in that: It includes a cabinet body, a partition plate divides the cabinet body into a device space and a heat dissipation space, and a plurality of capacitor fixing seats are fixedly arranged on the partition plate; a heat dissipation channel is arranged in the device space, and the device space and the heat dissipation space are connected through the heat dissipation channel, and the heat dissipation channel includes a cold plate, and a plurality of mounting rails and wire grooves are fixedly arranged on the cold plate; fan blades are arranged on the side walls of the heat dissipation space, and when the fan blades rotate, the air in the device space can enter the heat dissipation space through the heat dissipation channel.

2. A ring main unit that is easy to maintain and dissipate heat according to claim 1, characterized in that: There are two heat dissipation channels, and the heat dissipation channels are respectively arranged on both sides of the cabinet. The capacitor fixing seats are staggered on the partition plate, and a passing space is left between the capacitor fixing seats adjacent to the cold plate.

3. The ring main unit that is easy to maintain and dissipate heat according to claim 1 is characterized in that: The cold plate extends a plurality of first fins into the heat dissipation channel.

4. The ring main unit that is easy to inspect and dissipate heat according to claim 1 is characterized in that: An air inlet hole is opened on the side wall of the heat dissipation space, and the air inlet hole is arranged opposite to the fan blade.

5. The ring main unit that is easy to inspect and dissipate heat according to claim 4 is characterized in that: The partition plate extends a plurality of second fins into the heat dissipation space.

6. The ring main unit that is easy to inspect and dissipate heat according to claim 5 is characterized in that: The length direction of the second fin is parallel to the line between the air inlet and the fan blade.

7. The ring main unit that is easy to inspect and dissipate heat according to claim 1 is characterized in that: The mounting rail comprises a fixing portion, support portions are extended outwardly from both sides of the fixing portion, and a flow groove is left between the two support portions. The fixing portion and the cold plate are provided with corresponding through holes, and the flow groove can be connected with the cooling channel through the through holes.

8. The ring main unit that is easy to inspect and dissipate heat according to claim 1 is characterized in that: The side wall of the device space is provided with an air intake grille.

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