A bus duct with T-shaped heat dissipation structure

Abstract

The present invention relates to the technical field of bus ducts, and specifically provides a bus duct with a T-shaped heat dissipation structure, comprising two outer frame plates, a partition plate is arranged between the two outer frame plates, a T-shaped structure is formed between the partition plate and the outer frame plates, and mother ducts are arranged on both sides of the partition plate, a busbar is installed in the mother duct, and heat dissipation plates are arranged on both sides of the mother duct, so that the shape of the heat dissipation plate can be changed in time when the busbar generates heat, so that the two outer frame plates are separated from each other, and gaps are generated between multiple mother ducts and the busbar, so that air can circulate, and the air circulation can increase the heat dissipation capacity of the mother duct, and the liquid inside the heat dissipation plate can also absorb heat and evaporate, thereby improving the heat absorption capacity of the heat dissipation plate, so that the heat generated by the busbar can be conducted out in time; and when the busbar is not in a working state, the heat dissipation plate can also switch the shape in time to reset the size of multiple mother ducts, thereby avoiding the reduction of the sealing between the mother ducts and the busbar.

Description

Technical Field

[0001] The invention relates to the technical field of bus ducts, and in particular to a bus duct with a T-shaped heat dissipation structure. Background Art

[0002] Bus duct is a device used to transmit electrical energy. It is widely used in high-rise buildings, factories, data centers and other places that require efficient power supply. It consists of a metal casing and internal conductors, replacing traditional cables and has higher flexibility and carrying capacity.

[0003] For example, Chinese patent CN109412099B discloses a bus duct with high efficiency in heat dissipation, including a bus duct body, a cover plate, an inner cavity and a dovetail groove. The side wall of the bus duct body is fixedly installed with a cover plate, the interior of the bus duct body is fixedly installed with an inner cavity, the inner cavity is tightly fitted with the inner wall of the cover plate, the outer wall of the bus duct body is tightly fitted with an aluminum alloy protective shell, the left and right ends of the aluminum alloy protective shell are connected to the cover plate, the upper wall of the bus duct body is penetrated by a through hole, the through hole is connected to the top of the aluminum alloy protective shell, and a double-connected copper bus is fixedly installed inside the bus duct body. This scheme uses the aluminum alloy protective shell to dissipate heat through air conduction, and heat sinks are provided inside the side panels, raised ribs are provided on the outer wall, and the side panels are designed as a dovetail groove structure, which can help the bus duct dissipate heat.

[0004] However, the above scheme adopts the method of adding heat exchange plates to the outer walls on both sides to achieve the effect of natural heat dissipation, but the heat dissipation efficiency is low. When used in areas with weak air flow, the heat dissipation effect is not ideal. If the heat dissipation effect is to be increased, air circulation is required inside the bus duct, but when the bus duct is not in a heat dissipation state, the sealing effect of the bus duct will be poor. Summary of the invention

[0005] Based on this, it is necessary to provide a bus duct with a T-shaped heat dissipation structure to address the problems that the current bus duct has a poor heat dissipation effect and a less than ideal sealing effect when the bus duct is not working.

[0006] The above purpose is achieved through the following technical solutions:

[0007] A bus duct with a T-shaped heat dissipation structure, comprising:

[0008] Two outer frame plates, each of which is vertically provided with a partition plate, and the partition plate and the outer frame plate form a T-shaped structure;

[0009] There are multiple mother slots between the two outer frame plates, the multiple mother slots are symmetrically distributed on both sides of the partition plate, and busbars are installed in the multiple mother slots;

[0010] A heat sink, which is arranged between two outer frame plates, is hollow inside the heat sink and contains liquid, and one end surface of the heat sink away from the mother groove is an arc-shaped elastic plate;

[0011] When the busbar is heated, the liquid inside the heat sink evaporates so that the heat sink gradually becomes straight, and the two outer frames move away from each other to increase the size of the mother slot, and a gap is formed between the mother slot and the busbar, through which air can flow;

[0012] When the busbar is not generating heat, the heat sink is in a bent state, the size of the mother groove is reduced and adapted to the size of the busbar, and the busbar is sealed in the mother groove.

[0013] Furthermore, the side walls of the mother groove between the two outer frame plates are connected by a connecting elastic plate. When the two outer frame plates move away from each other, the connecting elastic plate is stretched, and when the two outer frame plates move closer to each other, the connecting elastic plate is shortened and reset.

[0014] Furthermore, a sealing sleeve is provided on the outer periphery of the busbar, and when a gap is generated between the mother groove and the busbar, there is a gap between the sealing sleeve and the inner wall of the mother groove, and a cleaning component is provided in the mother groove, and the cleaning component can clean the surface of the sealing sleeve on the outer periphery of the busbar.

[0015] Furthermore, the cleaning component includes a scraping block and a rotating sleeve, the rotating sleeve is fixedly sleeved on the outer periphery of the sealing sleeve, the outer periphery of the rotating sleeve has a first one-way tooth, the side wall of the mother groove has a second one-way tooth, the first one-way tooth and the second one-way tooth are meshed, and the two outer frame plates can drive the rotating sleeve to drive the sealing sleeve to rotate when the two outer frame plates move away from or approach each other, the scraping block is located in the mother groove, and the scraping block scrapes impurities on the outer periphery of the sealing sleeve.

[0016] Furthermore, there are multiple rotating sleeves.

[0017] Furthermore, the cleaning assembly includes a plurality of sealing elastic plates, and the plurality of sealing elastic plates are located on the upper and lower end surfaces in the mother groove;

[0018] When there is a gap between the mother groove and the busbar, one end of the plurality of sealing elastic plates is fixed on the upper and lower end surfaces of the mother groove and is arranged obliquely, and the other end of the plurality of sealing elastic plates abuts against the outer periphery of the sealing sleeve;

[0019] When the two outer frame plates are approaching or moving away from each other, one end of a plurality of sealing elastic plates abuts against the outer periphery of the sealing sleeve and slides on the outer periphery of the sealing sleeve to scrape off impurities.

[0020] Furthermore, there is a gap between adjacent sealing elastic plates.

[0021] Furthermore, the busbar has multiple layers, which are a hard protective layer, a filling layer, an insulating layer, and a conductive layer from the outside to the inside.

[0022] Furthermore, sealing strips are provided on the end surfaces of both ends of the heat dissipation plate that are in contact with the two outer frame plates.

[0023] Furthermore, the liquid is a low-boiling point heat transfer liquid.

[0024] The beneficial effects of the present invention are:

[0025] The present invention provides a heat sink, which can change the shape of the heat sink in time when the busbar generates heat, so that the two outer frame plates are separated from each other, and gaps are generated between the multiple mother slots and the busbar, so that air can circulate. The air circulation can increase the heat dissipation capacity of the mother slots, and the liquid inside the heat sink can also absorb heat and evaporate, thereby improving the heat absorption capacity of the heat sink, so that the heat generated by the busbar can be conducted out in time; and when the busbar is not in a working state, the heat sink can also switch its shape in time to reset the size of the multiple mother slots, thereby avoiding a decrease in the sealing between the mother slots and the busbar.

[0026] The present invention provides a cleaning component, which can clean the gap between the mother slot and the busbar, that is, clean the sealing sleeve on the outer periphery of the busbar, thereby preventing impurities from affecting the sealing effect between the mother slot and the busbar. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of the structure of a bus duct with a T-shaped heat dissipation structure provided by an embodiment of the present invention;

[0028] Figure 2 An exploded view of a bus duct with a T-shaped heat dissipation structure provided by an embodiment of the present invention;

[0029] Figure 3 A partial structural view of a bus duct with a T-shaped heat dissipation structure provided by an embodiment of the present invention;

[0030] Figure 4 for Figure 3 A cross-sectional view along AA when the busbar in a bus duct with a T-shaped heat dissipation structure is not in operation, provided in one embodiment;

[0031] Figure 5 for Figure 4 A partial enlarged view of a portion X of a bus duct having a T-shaped heat dissipation structure provided in an embodiment;

[0032] Figure 6 for Figure 3 A cross-sectional view along AA of a busbar in a bus duct with a T-shaped heat dissipation structure provided in an embodiment of the present invention when the busbar is in working state;

[0033] Figure 7 for Figure 6 A partial enlarged view of a bus duct Y portion having a T-shaped heat dissipation structure provided in an embodiment;

[0034] Figure 8 for Figure 3 A cross-sectional view along BB of a busbar in a bus duct with a T-shaped heat dissipation structure provided in an embodiment of the present invention when the busbar is in working state;

[0035] Fig. 9 for Figure 8 A partial enlarged view of the Z portion of the bus duct with a T-shaped heat dissipation structure provided in an embodiment;

[0036] Fig.10 A cross-sectional view along AA of a busbar in a bus duct with a T-shaped heat dissipation structure in a working state provided by another embodiment of the present invention;

[0037] Fig.11 for Fig.10 A partial enlarged view of a bus duct I having a T-shaped heat dissipation structure provided in an embodiment.

[0038] in:

[0039] 100, outer frame plate; 110, partition plate; 120, mother groove; 130, gap;

[0040] 200, heat sink; 210, arc-shaped elastic plate; 220, connecting plate; 230, connecting elastic plate; 240, sealing strip; 250, sealing sleeve; 260, rotating sleeve; 261, first one-way tooth; 270, second one-way tooth; 280, scraping block; 290, sealing elastic plate;

[0041] 300, busbar; 310, hard protective layer; 320, filling layer; 330, insulating layer; 340, conductive layer. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0043] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in the present invention, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention 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 to the present invention.

[0044] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0045] Refer to the following Figure 1-Figure 11 A bus duct with a T-shaped heat dissipation structure provided by the present invention is described.

[0046] A bus duct with a T-shaped heat dissipation structure is suitable for heat dissipation and sealing of a busbar 300, comprising two outer frame plates 100, on which partitions 110 are vertically arranged, and the two partitions 110 and the two outer frame plates 100 form a T-shaped structure, and the two partitions 110 are on the same straight line. A plurality of mother slots 120 are also arranged between the two outer frame plates 100, and the plurality of mother slots 120 are symmetrically distributed between the two partitions 110, and a busbar 300 is installed in the plurality of mother slots 120, which is an important component in the power system and is mainly used for the distribution and transmission of electric energy.

[0047] The busbar 300 will emit heat when it is in working state. At this time, the mother slot 120 needs to have heat dissipation capability. In the prior art, heat conducting plates or heat conducting fins are generally arranged on both sides of the mother slot 120. The heat of the mother slot 120 is conducted out through the heat conducting plates and heat conducting fins to achieve the effect of natural heat dissipation. The heat dissipation efficiency is low. When used in areas with weak air flow, the heat dissipation effect is not ideal. If the heat dissipation effect is to be increased, air circulation is required inside the mother slot 120. However, when the mother slot 120 is not in a heat dissipation state, the sealing effect of the mother slot 120 will be poor.

[0048] Therefore, the present invention is provided with a heat sink 200 between two outer frame plates 100, and a partition 110 is provided, the partition 110 can also play a role in heat conduction, so as to conduct the heat in the middle of the mother slot 120, and the heat sink 200 has a special structure, the heat sink 200 can improve the heat dissipation capacity of the mother slot 120 when the busbar 300 is heated, and the heat sink 200 can also ensure the sealing of the busbar 300 in the mother slot 120 when the busbar 300 is not heated. The heat sink 200 of the present invention is hollow inside and filled with liquid, and the liquid can be a low-boiling point heat-conducting liquid, such as a low-boiling point heat-conducting liquid such as methanol or ethanol. When the busbar 300 generates heat, the heat is conducted to the liquid through the heat sink 200, and the liquid evaporates due to the heat, thereby increasing the pressure inside the heat sink 200. In the present invention, one end surface of the heat sink 200 away from the mother groove 120 is an arc-shaped elastic plate 210. When the pressure inside the heat sink 200 increases, the arc-shaped elastic plate 210 of the heat sink 200 can be gradually in a straight state. Figures 4 to 6 The state shown changes, so that the two outer frame plates 100 move away from each other, and at the same time drive the two partitions 110 to move away from each other, and the size of the multiple mother slots 120 increases (the size increase refers to the increase in the overall height of the mother slots 120), so that a gap 130 is generated between the upper and lower end surfaces of the busbar 300 in the multiple mother slots 120 and the mother slots 120. At this time, the heat dissipation capacity of the busbar 300 is increased, and the gap 130 between the mother slots 120 and the busbar 300 can allow air to pass through, thereby taking away the heat from the surface of the busbar 300.

[0049] When the busbar 300 is not in working state, the busbar 300 does not generate heat. At this time, the steam inside the heat sink 200 will gradually condense, the pressure inside the heat sink 200 will gradually decrease, and the arc-shaped elastic plate 210 of the heat sink 200 will gradually reset to form an arc state. Figure 4 As shown, the busbar 300 is tightly in contact with the inner wall of the female groove 120 in the female groove 120 , thereby avoiding the generation of a gap 130 between the busbar 300 and the female groove 120 , thereby ensuring the sealing between the female groove 120 and the busbar 300 .

[0050] It can be understood that, through the heat sink 200 provided in the present invention, the shape of the heat sink 200 can be changed in time when the busbar 300 generates heat, so that the two outer frame plates 100 are away from each other, and a gap 130 is generated between the multiple mother grooves 120 and the busbar 300, so that air can circulate. The air circulation can increase the heat dissipation capacity of the mother grooves 120, and the liquid inside the heat sink 200 can also absorb heat and evaporate, thereby improving the heat absorption capacity of the heat sink 200, so that the heat generated by the busbar 300 can be timely conducted out; and when the busbar 300 is not in a working state, the heat sink 200 can also switch its shape in time to reset the size of the multiple mother grooves 120, thereby avoiding a decrease in the sealing between the mother grooves 120 and the busbar 300.

[0051] Specifically, the heat sink 200 of the present invention forms a side wall of the mother groove 120 at one end close to the mother groove 120, and a connecting elastic plate 230 is connected to the side wall. The connecting elastic plate 230 can be stretched or compressed. When the two outer frame plates 100 move away from each other, the connecting elastic plate 230 can be stretched to increase the length. The setting of the connecting elastic plate 230 allows the lengths of multiple mother grooves 120 to change, thereby generating a gap 130 between the mother groove 120 and the busbar 300.

[0052] It should be noted that in order to facilitate the connection of the connecting elastic plate 230, connecting plates 220 are fixedly connected at the upper and lower ends of the connecting elastic plate 230, and the connecting plate 220 is fixedly connected to the arc-shaped elastic plate 210 of the heat dissipation plate 200. The upper and lower connecting plates 220 and the connecting elastic plate 230 together constitute the side wall of the mother groove 120. When the two outer frame plates 100 move away from each other, the two connecting plates 220 pull the connecting elastic plate 230 to extend, and when the two outer frame plates 100 approach each other, the two connecting plates 220 push the connecting elastic plate 230 to shorten.

[0053] In a further embodiment, a sealing sleeve 250 is provided on the outer periphery of the busbar 300, and the sealing sleeve 250 can seal the busbar 300 and the mother slot 120. When the busbar 300 is not in a working state, the busbar 300 is sealed and connected to the mother slot 120 through the sealing sleeve 250. When the busbar 300 is in a working state, the busbar 300 generates heat, and the liquid inside the heat sink 200 conducts heat and evaporates, so that the two outer frame plates 100 move away from each other. After the two outer frame plates 100 move away from each other, the sizes of the multiple mother slots 120 increase, and gaps 130 are generated between the multiple mother slots 120 and the busbar 300. At the same time, the multiple mother slots 120 and the sealing sleeve 250 on the outer periphery of the busbar 300 also generate intervals, and the heat generated by the busbar 300 can also be conducted out through the sealing sleeve 250.

[0054] Specifically, a cleaning component is further provided in the mother slot 120, and the cleaning component can clean the surface of the sealing sleeve 250 on the periphery of the busbar 300. It can be understood that when the two outer frame plates 100 move away from each other and the size of multiple mother slots 120 increases, the air passing through the gap 130 between the mother slot 120 and the busbar 300 will inevitably contain some impurities. After a period of heat dissipation, some impurities will accumulate in the gap 130 between the mother slot 120 and the busbar 300. If these impurities are not cleaned, when the size of the mother slot 120 is restored, impurities will be mixed between the mother slot 120 and the busbar 300. In other words, some impurities will be mixed between the inner wall of the mother slot 120 and the outer wall of the sealing sleeve 250 on the periphery of the busbar 300, thereby greatly reducing the sealing performance between the sealing sleeve 250 and the mother slot 120, and the presence of these impurities will also affect the heat dissipation capacity of the mother slot 120, and more seriously, it may even cause safety accidents, such as excessive local heat caused by reduced heat dissipation efficiency or affecting the current transmission of the busbar 300, etc.

[0055] It should be noted that the cleaning component in the present invention has two different embodiments. Taking the first embodiment as an example, the cleaning component of the first embodiment includes a rotating sleeve 260 and a scraping block 280. There are multiple rotating sleeves 260, and the multiple rotating sleeves 260 are sleeved on the outer periphery of the sealing sleeve 250. The outer periphery of the rotating sleeve 260 is provided with a first one-way tooth 261, and the inner side walls of the multiple mother grooves 120 are provided with a second one-way tooth 270. The first one-way tooth 261 and the second one-way tooth 270 are meshed with each other. When the two outer frame plates 100 move away from each other, due to the increase in the size of the mother groove 120, the two connecting plates 220 forming the side walls of the mother groove 120 will move away from each other, and the second one-way tooth 270 is located on the connecting plate 220. Therefore, when the two connecting plates 220 move away from each other, the second one-way tooth 270 on the connecting plate 220 drives the rotating sleeve 260 to rotate by meshing with the first one-way tooth 261, as shown in FIG. Figure 6 As shown, when the two connecting plates 220 are set away from each other, the rotating sleeve 260 rotates in a counterclockwise direction, and the scraping block 280 is arranged on the side wall of the mother groove 120, so that when the rotating sleeve 260 drives the sealing sleeve 250 to rotate, the surface of the sealing sleeve 250 can be scraped by the scraping block 280 to remove impurities on the surface, thereby cleaning the impurities on the surface of the sealing sleeve 250.

[0056] Specifically, in this embodiment, there are multiple rotating sleeves 260, such as Figure 2 As shown, a plurality of rotating sleeves 260 are evenly spaced and sleeved on the outer circumference of the sealing sleeve 250 , so that the rotating sleeves 260 can drive the sealing sleeve 250 to rotate as a whole.

[0057] It should be noted that, in the present embodiment, there are two pairs of busbars 300 and two mother slots 120. The ends of the two pairs of busbars 300 are fixed at other positions, such as fixedly connected to electrical equipment or fixedly connected to other fixed structures, while the ends of the two outer frame plates 100 are not fixed, but connected to the busbars 300 through the mother slots 120. When the heat dissipation plates 200 of the two outer frame plates 100 gradually tend to be straight, the two outer frame plates 100 move away from each other, thereby increasing the size of the mother slot 120. In this process, since the second one-way teeth 270 are provided on the connecting plate 220 forming the side wall of the mother slot 120, when the two outer frame plates 100 move away from each other, the two connecting plates 220 forming the side wall of the mother slot 120 move away from each other, such as Figure 6 As shown, the second one-way tooth 270 on the connecting plate 220 located on the upper right side drives the outer periphery of the sealing sleeve 250 of the busbar 300 to rotate counterclockwise, while the second one-way tooth 270 on the connecting plate 220 located at the bottom moves downward. Since the first one-way tooth 261 on the rotating sleeve 260 and the second one-way tooth 270 on the connecting plate 220 are meshed and can only drive the first one-way tooth 261 to rotate counterclockwise through the second one-way tooth 270, the connecting plate 220 at the bottom right side moves downward, so it cannot drive the rotating sleeve 260 to rotate clockwise; and the second one-way tooth 270 on the connecting plate 220 located on the upper left side moves upward, so it cannot drive the rotating sleeve 260 to rotate clockwise. The second one-way tooth 270 on the connecting plate 220 located at the bottom left side can drive the rotating sleeve 260 of the busbar 300 to rotate counterclockwise when it moves downward.

[0058] like Figure 7 As shown, the scraping block 280 in the left mother groove 120 is located on the left side wall of the left mother groove 120, specifically, on the connecting plate 220 above the left heat sink 200, while the scraping block 280 of the right mother groove 120 is located on the partition 110. The scraping block 280 has a certain deformation ability. When the two outer frame plates 100 move away from each other and drive the sealing sleeve 250 on the outer periphery of the busbar 300 to rotate, the scraping block 280 can scrape off impurities on the sealing sleeve 250. When the two outer frame plates 100 move closer to each other, the sealing sleeve 250 on the outer periphery of the busbar 300 can also be driven to continue to rotate counterclockwise, thereby changing The sealing sleeve 250 is located at the upper and lower end surfaces of the mother groove 120, and as the two outer frame plates 100 approach each other, the two end surfaces of the mother groove 120 gradually approach the sealing sleeve 250 on the periphery of the busbar 300, and the scraper block 280 in the mother groove 120 is squeezed, so that it can no longer hinder the contact between the end surface of the mother groove 120 and the sealing sleeve 250, that is, the position originally located at the upper and lower end surfaces of the mother groove 120 will be moved to other areas through rotation, and the sealing sleeve 250 in other areas can be rotated to the upper and lower end surfaces of the mother groove 120, and there are no impurities on the surface of the sealing sleeve 250 rotated to this position.

[0059] In the second embodiment of the present invention, the cleaning assembly includes a plurality of sealing elastic plates 290, and the plurality of sealing elastic plates 290 are located on the upper and lower end surfaces of the female groove 120, such as Fig.10 and Fig.11 As shown in the figure, when there is a gap 130 between the inner wall of the plurality of mother grooves 120 and the busbar 300, the plurality of sealing elastic plates 290 are tiltedly located in the gap 130 between the mother grooves 120 and the busbar 300, and one end of the plurality of sealing elastic plates 290 is fixed on the upper and lower end surfaces of the mother grooves 120, and the other end of the plurality of sealing elastic plates 290 is abutted against the sealing sleeve 250 on the outer periphery of the busbar 300. When the two outer frame plates 100 are close to each other, one end of the plurality of sealing elastic plates 290 abutting against the outer periphery of the busbar 300 will The busbar 300 slides around the periphery to scrape off impurities on the surface, and when the two outer frame plates 100 are reset, that is, when the heat sink 200 is reset to an arc-shaped state, the multiple sealing elastic plates 290 are already in a horizontal state, and the ends of the multiple sealing elastic plates 290 contact each other, thereby forming a relatively complete sealing plate. The sealing plate is located between the sealing sleeve 250 and the mother groove 120 of the busbar 300, so that the busbar 300 can be sealed in the mother groove 120 when it is not working.

[0060] It can be understood that when the two outer frame plates 100 move away from each other, due to the elasticity of the multiple sealing elastic plates 290, the end of the multiple sealing elastic plates 290 that is not fixed on the busbar 300 begins to slide on the sealing sleeve 250 on the outer periphery of the busbar 300. In this process, the sealing sleeve 250 on the outer periphery of the busbar 300 can also be cleaned, so that after the two outer frame plates 100 move away from each other to the final position, there is a gap between the adjacent sealing elastic plates 290, and the gap between the sealing sleeve 250 on the outer periphery of the busbar 300 and the mother groove 120 can allow air to circulate and prevent impurities from obstructing air circulation. When the two outer frame plates 100 approach each other, the end of the multiple sealing elastic plates 290 that is not fixed can still slide on the sealing sleeve 250 on the outer periphery of the busbar 300, thereby scraping off the impurities on the outer periphery of the busbar 300 and preventing the impurities from affecting the sealing performance of the sealing elastic plates 290 and the sealing sleeve 250.

[0061] In a further embodiment, the busbar 300 has multiple layers inside, which are, from the outside to the inside, a hard protective layer 310, a filling layer 320, an insulating layer 330 and a conductive layer 340. The conductive layer 340 is the core part of the busbar 300, and is mainly made of highly conductive materials (such as copper or aluminum). It is responsible for the transmission of current. The use of materials with good conductivity such as copper or aluminum can minimize current loss and ensure efficient power transmission. The cross-sectional area and material selection of the conductive layer 340 directly determine the current that the busbar 300 can carry, ensuring stable operation of the system and avoiding overheating due to excessive current; the insulating layer 330 usually covers the outside of the conductive layer 340 and uses an electrically insulating material (such as epoxy resin, PVC, polyethylene, etc.). Its main function is to prevent the conductive layer 340 from contacting with external objects or other electrical components to avoid dangers such as short circuits, leakage or electric shock; the filling layer 320 is located between the insulating layer 330 and the outer protective layer, and is usually made of non-conductive materials (such as filling resins, plastics, etc.). Its The function is to fill the gap inside the busbar 300, ensure the stability of the structure, and provide additional mechanical strength. The filling layer 320 can improve the rigidity of the busbar 300, enhance the ability to resist pressure and impact, and prevent the busbar 300 from deforming during transportation or installation; the hard protective layer 310 is usually located at the outermost layer of the busbar 300 and is made of hard materials (such as steel shell, aluminum alloy, etc.), which plays a physical protection role to prevent the external environment from causing damage to the busbar 300. The hard protective layer 310 can effectively resist external impact, scratches, extrusion and other physical damages to avoid damage to the busbar 300. The hard shell can effectively prevent the busbar 300 from being exposed to moisture, corrosive gases or other harsh environments, thereby extending the service life of the busbar 300. The hard protective layer 310 improves the anti-aging and wear resistance of the busbar 300 to ensure long-term stable operation.

[0062] In a further embodiment, sealing strips 240 are provided on the end surfaces of the heat dissipation plate 200 that contact the two outer frame plates 100. Figure 7 As shown, the sealing strip 240 is specifically located between the two connecting plates 220 of the two heat dissipation plates 200 and the two outer frame plates 100. The sealing strip 240 completely seals the two connecting plates 220 of the heat dissipation plates 200 and the two outer frame plates 100, thereby avoiding poor sealing between the two connecting plates 220 of the heat dissipation plates 200 and the two outer frame plates 100.

[0063] The specific working process of a bus duct with a T-shaped heat dissipation structure provided by the present invention is described in combination with the above first embodiment:

[0064] When the busbar 300 is working, the busbar 300 emits heat, and the heat is conducted to the liquid inside the outer frame plate 100 and the heat sink 200 through the partition plate 110 and the connecting plate 220 of the heat sink 200. The liquid evaporates and absorbs heat, and the pressure inside the heat sink 200 increases, so that the arc-shaped elastic plate 210 of the heat sink 200 gradually tends to a straight state. Figures 4 to 6 The state changes, the arc-shaped elastic plate 210 pushes the two outer frame plates 100 away from each other, so that the size of the mother groove 120 increases, and the upper and lower end surfaces of the mother groove 120 are spaced from the sealing sleeve 250 on the periphery of the busbar 300. The gap allows air to circulate, thereby taking away the heat generated by the busbar 300 and preventing the temperature of the busbar 300 from being too high.

[0065] When the busbar 300 stops working, the busbar 300 no longer generates heat, and the evaporated liquid inside the heat sink 200 will gradually liquefy, thereby gradually reducing the pressure inside the heat sink 200, and the arc-shaped elastic plate 210 gradually returns to the arc-shaped state under the effect of its own elasticity, thereby pulling the two outer frame plates 100 that are far away from each other closer. In the process of the two outer frame plates 100 approaching or moving away from each other, the sealing sleeve 250 will be driven to rotate through the first one-way teeth 261 on the outer periphery of the rotating sleeve 260 and the second one-way teeth 270 on the connecting plate 220, and a scraper block 280 is provided in the mother groove 120 to scrape off impurities on the outer periphery of the sealing sleeve 250 to prevent impurities from affecting the sealing of the busbar 300.

[0066] The changes of the heat sink 200 when the busbar 300 in the second embodiment is the same when it is working and when it is not working, that is, the movement state of the two outer frame plates 100 is the same as that in the first embodiment, and the difference lies in the different working mode of the cleaning component. The cleaning component in the second embodiment includes a plurality of sealing elastic plates 290. When the busbar 300 is in a non-working state, the arc-shaped elastic plate 210 of the heat sink 200 between the two outer frame plates 100 is in an arc state, and the plurality of sealing elastic plates 290 are horizontally squeezed between the sealing sleeve 250 on the outer periphery of the busbar 300 and the upper and lower end surfaces of the mother groove 120. The plurality of sealing elastic plates 290 0At this time, the busbar 300 and the mother slot 120 are in a sealed state; when the two outer frame plates 100 move away from each other, the multiple sealing elastic plates 290 are gradually in an inclined state, and there is a gap between adjacent sealing elastic plates 290, which can allow air to flow, thereby enhancing the heat dissipation effect of the mother slot 120, and when the multiple sealing elastic plates 290 gradually return to a horizontal state, one end of the sealing elastic plate 290 abutting against the outer periphery of the sealing sleeve 250 of the busbar 300 can slide on the outer periphery of the sealing sleeve 250, so that impurities on the outer periphery of the sealing sleeve 250 can be scraped off to prevent the impurities from affecting the sealing of the busbar 300 in the mother slot 120.

[0067] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0068] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A bus duct with a T-shaped heat dissipation structure, characterized in that: include: Two outer frame plates, each of which is vertically provided with a partition plate, and the partition plate and the outer frame plate form a T-shaped structure; There are multiple mother slots between the two outer frame plates, the multiple mother slots are symmetrically distributed on both sides of the partition plate, and busbars are installed in the multiple mother slots; A heat sink, which is arranged between two outer frame plates, is hollow inside the heat sink and contains liquid, and one end surface of the heat sink away from the mother groove is an arc-shaped elastic plate; When the busbar is heated, the liquid inside the heat sink evaporates so that the heat sink gradually becomes straight, and the two outer frames move away from each other to increase the size of the mother slot, and a gap is formed between the mother slot and the busbar, through which air can flow; When the busbar is not generating heat, the heat sink is in a bent state, the size of the mother groove is reduced and adapted to the size of the busbar, and the busbar is sealed in the mother groove.

2. The bus duct with a T-shaped heat dissipation structure according to claim 1, characterized in that: The side walls of the female groove between the two outer frame plates are connected by a connecting elastic plate. When the two outer frame plates are away from each other, the connecting elastic plate is stretched, and when the two outer frame plates are close to each other, the connecting elastic plate is shortened and reset.

3. The bus duct with a T-shaped heat dissipation structure according to claim 1, characterized in that: A sealing sleeve is arranged at the outer periphery of the busbar. When a gap is generated between the mother groove and the busbar, there is a gap between the sealing sleeve and the inner wall of the mother groove. A cleaning component is arranged in the mother groove, and the cleaning component can clean the surface of the sealing sleeve at the outer periphery of the busbar.

4. The bus duct with a T-shaped heat dissipation structure according to claim 3, characterized in that: The cleaning component includes a scraping block and a rotating sleeve. The rotating sleeve is fixedly sleeved on the outer periphery of the sealing sleeve. The outer periphery of the rotating sleeve is provided with a first one-way tooth. The side wall of the mother groove is provided with a second one-way tooth. The first one-way tooth and the second one-way tooth are meshed. When the two outer frame plates move away from or approach each other, the rotating sleeve can be driven to drive the sealing sleeve to rotate. The scraping block is located in the mother groove, and the scraping block scrapes impurities on the outer periphery of the sealing sleeve.

5. The bus duct with a T-shaped heat dissipation structure according to claim 4, characterized in that: There are multiple rotating sleeves.

6. The bus duct with a T-shaped heat dissipation structure according to claim 3, characterized in that: The cleaning assembly includes a plurality of sealing elastic plates, which are located on the upper and lower end surfaces of the mother groove; When there is a gap between the mother groove and the busbar, one end of the plurality of sealing elastic plates is fixed on the upper and lower end surfaces of the mother groove and is arranged obliquely, and the other end of the plurality of sealing elastic plates abuts against the outer periphery of the sealing sleeve; When the two outer frame plates are approaching or moving away from each other, one end of a plurality of sealing elastic plates abuts against the outer periphery of the sealing sleeve and slides on the outer periphery of the sealing sleeve to scrape off impurities.

7. The bus duct with a T-shaped heat dissipation structure according to claim 6, characterized in that: There are spaces between adjacent sealing elastic plates.

8. The bus duct with a T-shaped heat dissipation structure according to claim 1, characterized in that: The busbar has multiple layers, which are a hard protective layer, a filling layer, an insulating layer, and a conductive layer from the outside to the inside.

9. The bus duct with a T-shaped heat dissipation structure according to claim 1, characterized in that: Sealing strips are arranged on the end surfaces of the two ends of the heat dissipation plate that contact the two outer frame plates.

10. The bus duct with a T-shaped heat dissipation structure according to claim 1, characterized in that: The liquid is a low boiling point heat transfer liquid.

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