Air type bus duct with good sealing performance

Abstract

The utility model relates to the technical field of bus ducts, and discloses an air type bus duct with good sealing performance. The shell is composed of two side plates, two top covers and two limiting end covers, the copper bars are arranged in the shell, the upper top cover and the lower top cover are both provided with a plurality of heat dissipation pieces with closed structures and ventilation structures, and each heat dissipation piece comprises a cover plate provided with a plurality of through holes. The bottom of the cover plate is fixedly connected with a plurality of flat pipes which are in butt joint with the through opening of the cover plate, the flat pipes on the upper top cover and the lower top cover are in butt joint with each other, a plurality of communicating pipes are arranged between the flat pipes, and the two communicating pipes on the two outer sides of the heat dissipation piece extend out of the shell. According to the utility model, the heat dissipation piece with the through structure is arranged on the bus duct shell, so that the bus duct shell is of a through type closed structure, the closed performance of the bus duct is ensured, and meanwhile, the through type heat conduction and heat dissipation structural form also enables the bus duct to have a better heat dissipation effect.

Description

TECHNICAL FIELD

[0001] The utility model relates to bus duct technical field especially, it relates to a good air type bus duct of sealing. BACKGROUND

[0002] ‌Air type bus duct is a kind of equipment for power transmission and distribution, its main part is mainly composed of shell and conductive copper bar, compared to the second generation of dense bus duct, its characteristics are that air is used as insulating medium, multiple copper bars are spaced apart a distance (dense bus duct is multiple copper bars integrated together, but surface is wrapped with insulating material).Most air type bus ducts are open or semi-open structure, allow air to circulate naturally, to improve heat dissipation performance, but this also leads to its difficult to effectively block dust from entering, easily cause a series of security risks (dust accumulation can cause insulation performance to decline, increase short circuit or risk of electric leakage).

[0003] There are also some air type bus ducts with sealing structure design, and in order to solve the heat dissipation problem, generally adopt the mode of heat dissipation by heat conduction plate, copper bar heat is transferred to the shell by heat conduction plate, for example, the patent file with public number (CN112803332B) discloses a good sealing heat dissipation type bus duct, the bus duct includes copper bar and shell, wherein, copper bar, the insulating layer is coated on the side wall of the middle part;Shell, set on the outer side of the copper bar, it includes shell, heat dissipation guide plate and waterproof piece, the heat dissipation guide plate is set in the middle part of the inner cavity of the shell, and the waterproof piece is symmetrically set in the end part of the inner cavity of the shell.

[0004] However, this heat dissipation mode has low contact degree with air, and the long conduction path leads to increased thermal resistance (copper bar transmits heat to heat conduction plate, and then heat conduction plate transmits heat to shell), and low degree of adaptation with heat dissipation fan (after installing heat dissipation fan, air flow heat dissipation cannot be fully utilized), therefore, it is necessary to put forward an air type bus duct with good sealing and more ideal heat dissipation effect. UTILITY MODEL CONTENTS

[0005] To solve the above technical problems, the utility model provides an air type bus duct with good sealing.

[0006] The utility model discloses adopt following technical scheme realization: by two side plates, two top caps, two limit end covers constitute the shell and set up in the shell multiple copper bars, all be provided with multiple heat dissipation pieces of closed structure and ventilation structure on two top caps, and heat dissipation piece includes the cover plate that is provided with multiple through -orifices, the bottom fixed connection of cover plate has with its through -orifice and butt joint multiple flat tubes, and the multiple flat tubes on two top caps butt joint each other, multiple flat tubes are provided with multiple communicating pipes between, and two communicating pipes of heat dissipation piece outer two sides all extend to the shell outside, and this lets heat dissipation piece through the whole shell and with copper bar guaranteeing ventilation and heat dissipation, simultaneously guarantee the closed property of whole shell.

[0007] As a further improvement of the above-mentioned scheme, the top cap is provided with a plurality of longitudinal through holes, and the plurality of heat dissipation pieces are arranged to penetrate through the longitudinal through holes and are slidably connected with the longitudinal through holes, so that one end of the heat dissipation piece is arranged in the shell and the other end of the heat dissipation piece extends out of the shell to ensure that the heat dissipation piece is through, and the airflow is circulated.

[0008] As a further improvement of the above-mentioned scheme, the top cap is provided with a plurality of pairs of clamping strips which are respectively aligned with the plurality of longitudinal through holes, and the two sides of the plurality of cover plates are respectively extended to below the plurality of pairs of clamping strips and are abutted with the plurality of pairs of clamping strips, so that the gap between the two is blocked, the heat dissipation piece is limited, and the heat dissipation piece is abutted with the shell, and the shell becomes a part of heat conduction and heat dissipation.

[0009] As a further improvement of the above-mentioned scheme, the plurality of flat tubes are arranged at intervals, and the plurality of copper bars are arranged between the plurality of flat tubes and are abutted with the plurality of flat tubes, so that the copper bars are fully contacted with the heat dissipation piece to ensure heat conduction.

[0010] As a further improvement of the above-mentioned scheme, the side plate is provided with a plurality of transverse through holes which are aligned with the communicating pipes, and the communicating pipes on the two sides of the heat dissipation piece penetrate through the transverse through holes, and the side plate is provided with a plurality of notches which are aligned with the transverse through holes on the two sides of the guard rail, so that the lateral airflow can smoothly enter the heat dissipation piece.

[0011] As a further improvement of the above-mentioned scheme, the two side plates are respectively provided with a pushing assembly which is used for abutting against the heat dissipation piece, and the pushing assemblies on the two side plates are respectively abutted with the heat dissipation pieces on the upper and lower top caps, so that the upper and lower two groups of heat dissipation pieces form a clamping force to abut against the copper bars.

[0012] As a further improvement of the above-mentioned scheme, the pushing assembly comprises an abutting piece which is abutted with the heat dissipation piece, the abutting piece is provided with two bolt columns which penetrate through the side plate and are slidably connected with the side plate, the other end of the two bolt columns is provided with the same baffle through a bolt, and the two bolt columns are respectively provided with a spring, and the two ends of the spring are respectively abutted with the side plate and the abutting piece.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] By setting up the heat dissipation piece composed of the cover plate, the flat pipe, the communicating pipe and the like structure on the shell, the bus duct becomes the through type closed structure, compared with the existing open type air type bus duct, it can prevent the dust and the like sundries from entering, and compared with the closed type air type bus duct, the through type heat conduction heat dissipation structure form makes it have better heat dissipation effect, and has better cooperation effect with the external heat dissipation fan.

[0015] By setting up the pushing assembly composed of the abutting piece, the bolt column, the baffle piece, the spring and the like structure on the shell, the heat dissipation piece can be abutted tightly, so that the heat dissipation piece can be better attached to the copper bar, guaranteeing the heat conduction heat dissipation effect, and the upper and lower two groups of heat dissipation pieces in the clamping type abutting mode can improve the stability of the copper bar as a whole. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the whole structure schematic view of the air type bus duct with good sealing property of the utility model;

[0017] Figure 2 It is the first split display view of the air type bus duct with good sealing property of the utility model;

[0018] Figure 3 It is the second split display view of the air type bus duct with good sealing property of the utility model;

[0019] Figure 4 It is the split display view of the top cover and the heat dissipation piece 5;

[0020] Figure 5 It is the partial section display view of the heat dissipation piece and the copper bar;

[0021] Figure 6 It is the overhead angle split display view and the local enlarged view of the air type bus duct with good sealing property of the utility model.

[0022] MAIN SYMBOL EXPLANATION:

[0023] 1, side plate; 101, horizontal through hole; 2, top cover; 201, vertical through hole; 202, clamping strip; 3, limiting end cover; 4, copper bar; 5, heat dissipation piece; 501, cover plate; 502, flat pipe; 503, communicating pipe; 6, pushing assembly; 601, abutting piece; 602, bolt column; 603, baffle piece; 604, spring. DETAILED DESCRIPTION

[0024] In the following, the utility model is further described in combination with the drawings and the specific implementation.

[0025] Please combine Figures 1 to 6The application discloses an air-type bus duct with good sealing performance, which comprises a shell composed of two side plates 1, two top covers 2, two limiting end covers 3 and a plurality of copper bars 4 arranged in the shell, wherein the top covers 2 are provided with a plurality of heat dissipation pieces 5 with both closed and ventilated structures, and the heat dissipation pieces 5 and the limiting end covers 3 are made of aluminum nitride and have the characteristics of high thermal conductivity and electrical insulation.

[0026] The copper bar 4 heat dissipation piece 5 comprises a cover plate 501 provided with a plurality of through openings, the bottom of the cover plate 501 is fixedly connected with a plurality of flat tubes 502 which are connected with the through openings, the flat tubes 502 are distributed at intervals, and the copper bars 4 are arranged between the flat tubes 502 and are in close contact with the flat tubes 502, so that the copper bars 4 are in full contact with the heat dissipation pieces 5 to ensure heat conduction, the flat tubes 502 on the upper and lower top covers 2 are connected with each other, a plurality of communication tubes 503 are arranged between the flat tubes 502, the cover plate 501, the flat tubes 502 and the communication tubes 503 are connected by welding, and the two communication tubes 503 on the outer sides of the heat dissipation pieces 5 extend out of the shell, so that the lateral airflow can also enter the heat dissipation pieces 5, so that the heat dissipation pieces 5 penetrate through the entire shell and are in close contact with the copper bars 4 to ensure ventilation and heat dissipation, and the sealing performance of the entire shell is ensured.

[0027] According to the above technical scheme, the bus duct has a penetrating closed structure, compared with the existing open air-type bus duct, the bus duct can prevent dust and other sundries from entering, and compared with the closed air-type bus duct, the bus duct has a penetrating heat conduction and heat dissipation structure, so that the bus duct has better heat dissipation effect and better cooperation effect with the external heat dissipation fan.

[0028] A plurality of longitudinal openings 201 are arranged on the top cover 2 of the copper bar 4, and the heat dissipation pieces 5 are arranged in the longitudinal openings 201 and are in sliding connection with the longitudinal openings 201, so that one end of the heat dissipation pieces 5 is arranged in the shell and the other end extends out of the shell to ensure penetration and air flow.

[0029] A plurality of clamping strips 202 are fixedly arranged on the top cover 2 of the copper bar 4 and are in alignment with the longitudinal openings 201, and the two sides of the cover plate 501 extend to the lower sides of the plurality of clamping strips 202 and abut against the clamping strips 202, so as to seal the gap between the two, limit the heat dissipation pieces 5 and make the heat dissipation pieces 5 abut against the shell, so that the shell becomes a part of the heat conduction and heat dissipation part.

[0030] A plurality of transverse openings 101 are arranged on the side plate 1 of the copper bar 4 and are in alignment with the communication tubes 503, and the communication tubes 503 arranged on the two sides of the heat dissipation pieces 5 penetrate through the transverse openings 101, and a plurality of notches are arranged on the two sides of the side plate 1 of the copper bar 1 and are in alignment with the transverse openings 101, so that the lateral airflow can smoothly enter the heat dissipation pieces 5.

[0031] The two side plates 1 are provided with push assembly 6 for abutting the heat dissipation piece 5, the copper bar 4 push assembly 6 includes the abutting piece 601 abutting the heat dissipation piece 5, the copper bar 4 push piece 601 is provided with two bolt columns 602 penetrating the side plate 1 and slidingly connected with the side plate 1, the other end of the two bolt columns 602 is provided with the same baffle 603 through bolts, the spring 604 is sleeved on the two bolt columns 602, the two ends of the copper bar 4 spring 604 are respectively abutted with the side plate 1 and the abutting piece 601, the push assembly 6 on the two side plates 1 is respectively abutted with the heat dissipation piece 5 on the upper and lower two top covers 2, so that the upper and lower two groups of heat dissipation pieces 5 form a clamping force to abut the copper bar 4.

[0032] Through the above technical scheme, the heat dissipation piece 5 can be abutted, so that the heat dissipation piece 5 can be better attached to the copper bar 4, and the stability of the copper bar 4 as a whole can be improved.

[0033] The implementation principle of the air type bus duct with good sealing property in the embodiment of the application is:

[0034] The plurality of copper bars 4 are respectively abutted with the flat tubes 502 on the plurality of heat dissipation pieces 5, so as to realize heat conduction, and the flat tubes 502 on the upper and lower two groups of heat dissipation pieces 5 are penetrated, so that the heat dissipation piece 5 as the first heat conduction piece has more contact with the outside air, so as to improve the heat dissipation effect, and the penetrating structure design also enables the bus duct to be externally provided with a heat dissipation fan, so that air can pass through the heat dissipation piece 5, so as to better cooperate with the heat dissipation fan and prevent external dust from entering the bus duct;

[0035] The abutting piece 601 on the push assembly 6 is always pushed by the spring 604 to counterpush the heat dissipation piece 5, so that the heat dissipation piece 5 can always keep in contact with the copper bar 4, thereby ensuring the heat conduction effect between the two.

[0036] The above embodiment is only a preferred embodiment of the application, and cannot be used to limit the scope of protection of the application, and any non-substantial changes and replacements made by those skilled in the art on the basis of the application all belong to the scope of protection of the application.

Claims

1. A well-sealed air-insulated busbar trunking, comprising: The outer shell consists of two side plates (1), two top covers (2), two limiting end covers (3), and multiple copper busbars (4) disposed within the outer shell, characterized in that: Multiple heat dissipation components (5) with both closed and ventilated structures are provided on the top and bottom covers (2); The heat sink (5) includes a cover plate (501) with multiple openings. The bottom of the cover plate (501) is fixedly connected to multiple flat tubes (502) that are connected to the openings. The multiple flat tubes (502) on the upper and lower top covers (2) are connected to each other. Multiple connecting tubes (503) are provided between the multiple flat tubes (502). The two connecting tubes (503) on the outer sides of the heat sink (5) extend to the outside of the outer shell. This allows the heat sink (5) to pass through the entire outer shell and fit with the copper busbar (4) to ensure ventilation and heat dissipation, while also ensuring the sealing of the entire outer shell.

2. The air-sealed busbar trunking with good sealing performance as described in claim 1, characterized in that, The top cover (2) is provided with multiple longitudinal openings (201), and multiple heat sinks (5) pass through the longitudinal openings (201) and are slidably connected to them, so that one end of the heat sink (5) is inside the shell and the other end extends to the outside of the shell to ensure continuity and allow airflow.

3. The air-sealed busbar trunking with good sealing performance as described in claim 2, characterized in that, The top cover (2) is fixedly provided with multiple pairs of clips (202) that are respectively aligned with multiple longitudinal through holes (201). The two sides of the multiple cover plates (501) extend to the bottom of the multiple pairs of clips (202) and abut against them, which not only seals the gap between the two, but also limits the heat dissipation component (5), and also makes the heat dissipation component (5) fit with the outer shell, so that the outer shell becomes part of the heat conduction and heat dissipation.

4. The air-sealed busbar trunking with good sealing performance as described in claim 1, characterized in that, Multiple flat tubes (502) are spaced apart, and multiple copper busbars (4) are located between the multiple flat tubes (502) and are in contact with the multiple flat tubes (502) so that the copper busbars (4) and the heat sink (5) can be in full contact to ensure heat conduction.

5. The air-sealed busbar trunking with good sealing performance as described in claim 1, characterized in that, The side plate (1) is provided with a plurality of transverse openings (101) aligned with the connecting pipe (503). The connecting pipe (503) on both sides of the heat sink (5) passes through the transverse openings (101). The side plate (1) is provided with a plurality of notches aligned with the transverse openings (101) on the side guards, so that the lateral airflow can also smoothly enter the heat sink (5).

6. The air-sealed busbar trunking with good sealing performance as described in claim 1, characterized in that, Both side plates (1) are provided with push-off components (6) for pressing against the heat sink (5). The push-off components (6) on the two side plates (1) are respectively pressed against the heat sink (5) on the upper and lower top covers (2), so that the upper and lower heat sinks (5) form a clamping force to press against the copper busbar (4).

7. The air-sealed busbar trunking with good sealing performance as described in claim 6, characterized in that, The push assembly (6) includes a push plate (601) that abuts against the heat sink (5). The push plate (601) is provided with two bolt posts (602) that penetrate the side plate (1) and are slidably connected to the side plate (1). The other end of the two bolt posts (602) is fitted with the same baffle (603) by bolts. A spring (604) is sleeved on each of the two bolt posts (602). The two ends of the spring (604) abut against the side plate (1) and the push plate (601) respectively.

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