A rectifier cabinet heat dissipation system

Abstract

This invention discloses a rectifier cabinet heat dissipation system, belonging to the field of rectifier cabinet heat dissipation technology. The system includes a ventilation structure located at an opening on the rectifier cabinet. The ventilation structure comprises: a peripheral wall portion with a channel section forming within it, communicating with the opening on the rectifier cabinet; the channel section forming a flow channel for gas between the inside and outside of the rectifier cabinet; and a filtration structure including a filter element and fixing and locking components disposed on both sides of the filter element. By providing a ventilation structure at the opening of the cabinet, the flow of gas between the inside and outside of the cabinet is achieved through the channel section formed in the peripheral wall portion, ensuring heat dissipation of the cabinet. Simultaneously, by providing a filtration structure within the filtration section of the peripheral wall portion, the filter element filters dust to prevent dust from entering the cabinet and causing short circuits in components, thus extending the service life of the cabinet.

Description

Technical Field

[0001] This invention belongs to the field of rectifier cabinet heat dissipation technology, and specifically relates to a rectifier cabinet heat dissipation system. Background Technology

[0002] The converter equipment and harmonic devices, capacitors, reactors and other equipment in the rectifier cabinet are heat-generating components that will generate a lot of heat during operation.

[0003] The main cooling method currently adopted is to open windows and use roof axial flow fans for forced convection ventilation. However, this method can cause dust to enter the rectifier room, rectifier cabinet, and distribution cabinet. Dust accumulation on the surface of components can easily cause electrical breakdown and short circuit accidents. Long-term operation of rectifier components in a high-temperature environment can shorten the service life of the components and increase the failure rate. Summary of the Invention

[0004] The purpose of this invention is to provide a rectifier cabinet heat dissipation system to solve the problems mentioned in the background art regarding the use of existing heat dissipation systems.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a rectifier cabinet heat dissipation system, including a ventilation structure disposed at an opening on the rectifier cabinet, the ventilation structure comprising:

[0006] The peripheral wall has a channel section that is connected to the opening on the rectifier cabinet. The channel section constitutes a flow channel for gas in the space inside and outside the rectifier cabinet. At least one set of filter openings is provided on the peripheral wall. Each set of filter openings includes two filter openings that are arranged opposite to each other on the side wall of the peripheral wall, and a filter section is formed between the two filter openings.

[0007] The filter structure includes a filter element and fixing and locking elements disposed on both sides of the filter element. The filter element is disposed along the cross-section of the filter interval and at least covers the cross-section of the filter interval. The filter element is installed and fixed under the force of the fixing and locking elements to filter dust in the air flowing in from outside the cabinet.

[0008] Preferably, the fastener is fixed within the filtration zone, and the locking member is configured to move linearly along the length of the peripheral wall portion. The filter element is compressed and fixed when the fastener and locking member are close together, and is movable when the fastener and locking member are far apart.

[0009] Preferably, the fixing member includes a ventilation section disposed along the cross section of the filtration interval and a first connecting section extending from the filter openings at both ends of the filtration interval to the outside of the filtration interval, and the ventilation section is provided with through holes for air flow, and the filter element includes a filter section covering the cross section of the filtration interval and a compression section extending from the filter openings at both ends of the filtration interval to the outside of the filtration interval.

[0010] Preferably, the locking member includes a second connecting portion that is adapted to the first connecting portion in the fixing member. The locking member remains locked under the action of the locking structure, and the compression portion of the filter element is compressed through the first connecting portion of the fixing member and the second connecting portion of the locking member to achieve the fixing of the filter element.

[0011] Preferably, the side wall of the peripheral wall component is provided with a slide rail for the second connecting part to slide.

[0012] Preferably, the locking member further includes an arm that connects the two parts of the second connecting portion.

[0013] Preferably, the locking structure includes a threaded component and threaded holes at least at both ends of the first connecting portion and the second connecting portion.

[0014] Preferably, the locking structure includes a magnet and a magnetic block respectively disposed on the opposite surfaces of the first connecting part and the second connecting part.

[0015] Preferably, the system further includes:

[0016] An axial flow fan is installed at the top of the cabinet.

[0017] A drainage pipe, one end of which is connected to the inlet of the axial flow fan, and the other end of which extends into the cabinet.

[0018] Preferably, the filter element is a sponge.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] This application incorporates a ventilation structure at the opening of the cabinet, allowing air circulation between the inside and outside of the cabinet through the channel formed in the peripheral wall, thus ensuring heat dissipation. Simultaneously, a filtration structure is installed in the filtration area of ​​the peripheral wall to filter dust, preventing dust from entering the cabinet and causing short circuits in components, thereby extending the service life of the cabinet. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the ventilation structure of the present invention;

[0022] Figure 2 For along Figure 1 A cross-sectional view of the ventilation structure of AA.

[0023] Figure 3 This is a schematic diagram of the ventilation structure of the present invention without a filter structure;

[0024] Figure 4This is a schematic diagram of the filter structure of the present invention;

[0025] Figure 5 This is a schematic diagram of the overall structure of the heat dissipation system of the present invention.

[0026] In the diagram: 1. Cabinet; 100. Axial flow fan; 101. Drainage duct; 200. Ventilation structure; 201. Frame component; 201a. Peripheral wall; 201b. Panel; 202. Channel section; 203. Filter structure; 204. Filter opening; 205. Filter section; 206. Filter element; 206a. Filter part; 206b. Compression part; 207. Fixing component; 207a. Ventilation part; 207b. First connecting part; 208. Locking component; 208a. Second connecting part; 208b. Arm; 209. Locking structure; 210. Threaded hole. Detailed Implementation

[0027] 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.

[0028] A rectifier cabinet is a power device used to convert alternating current (AC) to direct current (DC). Its internal converters, harmonic devices, capacitors, reactors, and other components are heat-generating elements that generate a significant amount of heat during operation. To cool the rectifier cabinet (hereinafter referred to as cabinet 1), the hot air inside cabinet 1 needs to be exchanged with the outside air. This is achieved by creating at least one opening in the side wall of the rectifier cabinet to allow for the exchange of hot and cold air. However, with the airflow, dust particles can enter the interior of cabinet 1 and accumulate on the rectifier components, potentially causing electrical breakdowns and short circuits, thus reducing the lifespan of cabinet 1.

[0029] Reference Figure 5 The main body of the heat dissipation system consists of a diversion component and a ventilation component. During the normal operation of the cabinet 1, the ventilation component serves as a flow channel between the internal and external air of the cabinet 1 to ensure the normal operation of the cabinet 1. When the internal temperature of the cabinet 1 rises to a set value, the diversion component starts to work. At this time, the ventilation component mainly serves as a channel for external air to enter the cabinet 1. At the same time, the high-temperature air inside the cabinet 1 enters the atmospheric environment outside the cabinet 1 under the action of the diversion component. The diversion component accelerates the exchange speed of air inside and outside the cabinet 1, thereby improving the overall heat dissipation effect of the cabinet 1.

[0030] Reference Figure 5The composition of the airflow diversion component is described below with reference to the figure. The airflow diversion component includes at least one axial flow fan 100 installed at the top of the cabinet 1. The axial flow fan 100 has an inlet end and an outlet end. Its inlet end is connected to one end of the airflow diversion pipe 101, and the other end of the airflow diversion pipe extends into the interior of the cabinet 1 (hereinafter referred to as the air intake end). That is, the airflow diversion pipe constitutes a connecting channel between the axial flow fan 100 and the interior space of the cabinet 1. In some embodiments of the heat dissipation system, the cross-section of the air intake end of the airflow diversion pipe is configured to gradually increase along its extension direction. For example, the air intake end is a hollow truncated cone shape, meaning that the cross-section of the air intake end extends downwards while gradually expanding outwards. (Refer to...) Figure 5 When the air intake component is working, the axial flow fan 100 starts, and the hot air inside the cabinet 1 is drawn along the air intake by the axial flow fan 100. Figure 5 The flow in the central drainage pipe 101 flows to the outside of the cabinet 1 in the direction of the arrow.

[0031] Reference Figure 1 , 2 5. The aforementioned ventilation assembly includes a ventilation structure 200 disposed at the opening position of the cabinet 1. The number of ventilation structures 200 is adapted to the number of openings in the cabinet 1, that is, a corresponding ventilation structure 200 is provided at each opening position of the cabinet 1. Specifically, the ventilation structure 200 includes a frame component 201, which includes a peripheral wall portion 201a. A channel section 202 is formed within the peripheral wall portion 201a. Both ends of the channel section 202 are open, and one end of the peripheral wall portion 201a is connected to the cabinet 1 (hereinafter, the end of the peripheral wall portion 201a connected to the cabinet 1 is referred to as the opening end). The opening end can at least cover the opening of the cabinet 1, that is... The cross-sectional area of ​​the opening end is at least equal to the cross-sectional area of ​​the opening on the cabinet 1. After the frame component 201 is installed on the cabinet 1, the air inside the cabinet 1 can enter the channel section 202 through the opening on it. In some embodiments of the ventilation component, the frame component 201 also includes a plate part 201b, which is connected to the other end of the opening end in the peripheral wall part 201a and closes that end. At the same time, a notch is opened on the plate part 201b to connect the channel space and the external space of the cabinet 1. At this time, the air inside the cabinet 1 and the air outside the cabinet 1 can be exchanged through the passage formed by the opening of the cabinet 1, the channel section 202 and the notch of the plate part 201b.

[0032] Reference Figures 1-4The ventilation structure 200 further includes a filter structure 203, which includes a filter element 206. The filter element 206 is disposed along the cross-section of the channel interval 202 and can at least cover the cross-section of the channel interval 202. When external air enters the cabinet 1, the filter element 206 can adsorb dust in the air, thereby achieving air exchange between the inside and outside of the cabinet 1 while preventing dust from falling on electrical components and causing short circuits. For example, the material of the filter element 206 can be sponge. Specifically, a filter element 206 is provided on the peripheral wall 201a of the frame component 201. One set of filter openings 204 is missing. A single set of filter openings 204 includes two filter openings 204 that are arranged opposite to each other on the peripheral wall portion 201a. A filter interval 205 is formed between the two filter openings 204 that constitute the single set of filter openings 204. The filter element 206 can enter the filter interval 205 and remain stable under the action of the other components of the filter structure 203 to achieve ventilation and filtration functions. For example, the cross-section of the opening is rectangular and extends along the height direction of the peripheral wall portion 201a. At this time, the filter interval 205 is configured as a cuboid interval extending in the horizontal direction.

[0033] Reference Figures 1-4 Continuing with the description of the composition of the filter structure 203, the filter structure 203 further includes a fixing member 207 and a locking member 208. The fixing member 207 has a ventilation section 207a that can be inserted into the filter interval 205 and a first connecting section 207b extending from the filter openings 204 at both ends of the filter interval 205 to the outside of the filter interval 205. That is, the first connecting section 207b consists of two opposing parts, and the fixing member 207 is fixed within the filter interval 205. The ventilation section 207a is a plate-shaped component, its cross-section and channel interval 20... The cross-section of 2 is adapted to each other, and the ventilation part 207a is provided with a through hole for air flow. In some embodiments of the filter structure 203, the first connecting part 207b is configured to extend along the width direction of the peripheral wall part 201a, at which time the ventilation part 207a is approximately "I" shaped; at the same time, the filter element 206 has a filtering part 206a and a compression part 206b, wherein the filtering part 206a is provided along the cross-section of the filtering interval 205, and the compression part 206b is formed by the filtering part 206a extending along the width direction of the peripheral wall part 201a; Return to reference Figures 1-4, continue to describe the filtering structure 203. The above-mentioned locking member 208 is configured to be linearly movable along the length direction of the peripheral wall portion 201a. Specifically, the above-mentioned locking member 208 has a second connecting portion 208a that can be linearly moved along the length direction of the peripheral wall portion 201a, and the main body of the second connecting portion 208a extends along the height direction of the peripheral wall portion 201a. That is, the second connecting portion 208a of the locking member 208 is adapted to the first connecting portion 207b of the fixing member 207. At this time, the second connecting portion 208a is also composed of two opposite parts. In some embodiments of the locking member 208, slide rails (not shown in the figure) for the second connecting portion 208a to slide are provided on the top wall and the bottom wall of the peripheral wall portion 201a to realize the sliding of the locking member 208 on the peripheral wall portion 201a. In some other embodiments of the locking member 208, refer to Figure 4 , the above-mentioned locking member 208 is integrally in a "hui" shape. At this time, the locking member 208 further includes an arm portion 208b that connects the second connecting portion 208a. During the installation process of the filtering structure 203, first move the locking member 208 a certain distance in the direction away from the fixing member 207, then insert the filter element 206 into the filtering interval 205, and make the end face of the filter element 206 contact the end face of the fixing member 207. Subsequently, apply an external force to the locking member 208 to move the locking member 208 in the direction of the fixing member 207. The second connecting portion 208a of the locking member 208 contacts the compression portion 206b of the filter element 206. After the compression portion 206b is compressed under the action of the first connecting portion 207b and the second connecting portion 208a, the locking member 208 is locked at this position, thereby completing the installation of the filter element 206. When the filter element 206 needs to be replaced, only the locking state of the locking member 208 needs to be released, and the filter element 206 can be taken out for replacement. Specifically, the realization and release of the locking state of the above-mentioned locking member 208 are both realized through the locking structure 209. In some embodiments of the locking structure 209, the locking structure 209 includes a threaded member (not shown in the figure) and threaded holes 210 respectively opened at least at both ends of the first connecting portion 207b and the second connecting portion 208a. The threaded member has a stud portion that can be screwed into the threaded holes 210 on the first connecting portion 207b and the second connecting portion 208a. By screwing and unscrewing the threaded member into and out of the threaded holes 210 on the first connecting portion 207b and the second connecting portion 208a, the locking member 208 can be kept in or released from the locking state, thereby realizing the disassembly and assembly of the filter element 206. In some other embodiments of the locking structure 209, the above-mentioned locking structure 209 includes magnets and magnetic attraction blocks (not shown in the figure) respectively provided on the opposite surfaces of the first connecting portion 207b and the second connecting portion 208a. The magnetic block is made of common materials such as iron that can be adsorbed by the magnet. Through the magnetic attraction force between the magnet and the magnetic attraction block, the locking member 208 is kept locked in the locking state.

[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rectifier cabinet heat dissipation system, characterized in that: The system comprises: a ventilation structure arranged at an opening position on the rectifying cabinet, the ventilation structure comprising: a peripheral wall portion having a channel section formed therein and communicating with the opening on the rectifying cabinet, the channel section being configured as a flow passage for gas between the interior and exterior of the rectifying cabinet, at least one set of filter openings being formed in the peripheral wall portion, each set of filter openings comprising two filter openings arranged opposite each other on the side wall of the peripheral wall portion and defining a filter section therebetween; a filter structure comprising a filter element and fixing members and locking members arranged on both sides of the filter element, the filter element being arranged along the cross section of the filter section and covering at least the cross section of the filter section, the filter element being fixed under the action of the fixing members and the locking members, the fixing members being fixed in the filter section, the locking members being configured to move linearly along the length direction of the peripheral wall portion, the filter element being compressed and fixed when the fixing members and the locking members are close to each other and being movable when the fixing members and the locking members are away from each other, the fixing members comprising ventilation portions arranged along the cross section of the filter section and first connecting portions extending from the filter openings at both ends of the filter section to the outside of the filter section, and through holes being formed in the ventilation portions for air flow, the filter element comprising a filter portion covering the cross section of the filter section and compression portions extending from the filter openings at both ends of the filter section to the outside of the filter section; the system further comprises: an axial flow fan installed at the top end of the cabinet; a flow guide pipe, one end of the flow guide pipe being connected to the inlet end of the axial flow fan, the other end of the flow guide pipe extending into the interior of the cabinet, and the cross-sectional area of the flow guide pipe gradually increasing as it extends into the interior of the cabinet.

2. The heat dissipation system for a rectifier cabinet according to claim 1, characterized in that: The locking members comprise second connecting portions adapted to the first connecting portions of the fixing members, the locking members being kept in a locked state under the action of a locking structure, and the compression portions of the filter element being compressed to fix the filter element through the first connecting portions of the fixing members and the second connecting portions of the locking members.

3. The rectifier cabinet heat dissipation system of claim 2, wherein: Sliding rails are formed in the side wall of the peripheral wall portion for the second connecting portions to slide.

4. The rectifier cabinet heat dissipation system of claim 2, wherein: The locking members further comprise arm portions connecting two portions of the second connecting portions.

5. The rectifier cabinet heat dissipation system of claim 2, wherein: The locking structure comprises threaded members and threaded holes formed at least at both ends of the first connecting portions and the second connecting portions.

6. The rectifier cabinet heat dissipation system of claim 2, wherein: The locking structure comprises magnets and magnetic blocks arranged on opposite surfaces of the first connecting portions and the second connecting portions, respectively.

7. The rectifier cabinet heat dissipation system of claim 1, wherein: The filter element is a sponge.

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