Low-voltage closed bus duct

Abstract

The utility model provides a low-voltage enclosed bus duct, and belongs to the technical field of bus distribution. Baffles are arranged on the left sides and the right sides of an upper groove box and a lower groove box, the upper groove box and the lower groove box are oppositely arranged, and the upper sides of the upper groove box and the lower groove box are connected through a hinge. Square notches are formed in the two sides of the upper part groove box and the two sides of the lower part groove box respectively; two fixed side plates are symmetrically arranged in the upper part groove box and the lower part groove box relative to the heat dissipation groove respectively; the fixed side plate comprises a fixed slide way, a sliding side plate and a sliding block, the fixed slide way is fixed in the upper groove box and the lower groove box, the sliding block is arranged in the fixed slide way in a sliding mode, and the sliding side plate is arranged on the upper portion of the sliding block. According to the utility model, the buses in the V-shaped gaps on the two sides are opposite, the buses in the groove box are clear and tidy, and installation and subsequent maintenance are facilitated; the extended baffles are arranged on the two sides of the upper groove box and the two sides of the lower groove box, so that the rainproof and waterproof functions are achieved; and a hinge is arranged to open the groove box, so that workers can conveniently overhaul.

Description

Technical Field

[0001] The utility model relates to the technical field of busbar power distribution, in particular to a low-voltage closed busbar duct. Background Art

[0002] Closed bus ducts are widely used in the field of power transmission and distribution, especially for the busbars between the transformer output end and the high-voltage incoming line cabinet input end. Closed bus ducts are generally used as the busbar passage. Existing closed bus ducts have many shortcomings:

[0003] 1. The closed bus duct is large in size, with many busbars inside, making it difficult to install and identify during subsequent maintenance. The efficiency of installation and maintenance is very low;

[0004] 2. There is no heat dissipation measure, or the heat dissipation measure is unreasonable. For bus ducts used outdoors, rain protection is very important. Once a short circuit accident occurs, the consequences will be disastrous.

[0005] 3. Since most closed bus ducts are installed at high altitudes, convenience and safety are very important for subsequent maintenance and upkeep. The existing closed bus ducts are not easy to inspect and repair. Summary of the Invention

[0006] The main purpose of the utility model is to provide a low-voltage closed bus duct, which can effectively solve the problems in the background technology.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] A low-voltage enclosed bus duct, comprising a trough box, a heat dissipation trough, a fixed side plate, a baffle, a fixed lock, a support tube and a heat dissipation hole.

[0009] The trough box is divided into two parts, namely the upper trough box and the lower trough box. Baffles are provided on the left and right sides of the upper trough box and the lower trough box. The upper trough box and the lower trough box are arranged opposite to each other and connected by a hinge on the upper side. The lower sides of the upper trough box and the lower trough box are connected by a fixed lock.

[0010] A raised heat dissipation groove is provided in the middle of the upper and lower slot boxes, and heat dissipation holes are provided on both sides of the heat dissipation groove. A square notch is provided on both sides of the upper and lower slot boxes. Two fixed side panels are symmetrically provided in the upper and lower slot boxes about the heat dissipation groove.

[0011] The fixed side plate includes a fixed slide, a sliding side plate and a slider. The fixed slide is fixed inside the upper slot box and the lower slot box. The slider is slidably arranged inside the fixed slide, and the sliding side plate is arranged on the upper part of the slider.

[0012] Support pipes are fixed on both sides of the bottom of the trough box by bolts.

[0013] The utility model discloses a low-voltage closed bus duct. A raised heat dissipation groove is arranged in the middle of an upper trough box and a lower trough box, and a recessed heat dissipation groove is arranged in the middle of the upper trough box and the lower trough box.

[0014] The utility model discloses a low-voltage closed bus duct, wherein the heights of the square notches on both sides of the upper trough box and the lower trough box are lower than the heights of the fixed side plates.

[0015] The utility model discloses a low-voltage closed bus duct, wherein the width of the square notches on both sides of the upper trough box and the lower trough box is smaller than the width of the fixed side plates.

[0016] The utility model discloses a low-voltage closed bus duct, wherein the top of the sliding side plate is provided with a V-shaped notch, and the fixed side plate also includes an arc rod and a limit block, one end of the arc rod is fixed to one side in the V-shaped notch by a spring, and the other side of the V-shaped notch is provided with a limit block, and the other end of the arc rod contacts the lower side of the limit block.

[0017] The utility model discloses a low-voltage closed bus duct, wherein protective rubber is arranged at the V-shaped notch.

[0018] The utility model discloses a low-voltage closed bus duct, wherein the distance between two fixed side plates symmetrically arranged about the heat dissipation trough in the upper trough box is greater than the distance between two fixed side plates symmetrically arranged about the heat dissipation trough in the lower trough box.

[0019] The utility model provides a low-voltage closed bus duct, wherein the upper trough box and the lower trough box extend along both sides of the trough box to form baffles.

[0020] The utility model provides a low-voltage closed bus duct, wherein the square notch is provided with protective rubber.

[0021] The utility model provides a low-voltage closed bus duct, wherein the duct box is made of metal as a whole and the surface is coated with a protective layer.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. This low-voltage enclosed bus duct has fixed side panels staggered in the upper and lower trough boxes. The busbars are fixed in the V-shaped notches of the fixed side panels. The busbars in the V-shaped notches on both sides are opposite to each other. The busbars in the trough box are clear and neat, which is convenient for installation and subsequent maintenance.

[0024] 2. The low-voltage enclosed bus duct is rainproof and waterproof by setting extended baffles on both sides of the upper and lower trough boxes;

[0025] 3. For the low-voltage closed bus duct, since the closed bus duct is generally installed at a very high position, when the closed bus duct is being repaired, it is easy to cause a falling accident after the maintenance door is opened. Setting a hinge to open the trough box can facilitate maintenance for the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a structural diagram of a low-voltage enclosed bus duct according to the utility model;

[0027] Figure 2 This is a front view of a low-voltage enclosed bus duct according to the utility model;

[0028] Figure 3 This is a schematic diagram of a heat dissipation slot in a low-voltage enclosed bus duct according to the present invention;

[0029] Figure 4 This is a cross-sectional view of a trough box in a low-voltage enclosed bus duct according to the utility model;

[0030] Figure 5 This is a cross-sectional view of the lower part of a low-voltage enclosed bus duct box of the utility model;

[0031] Figure 6 This is a schematic diagram of a fixed side plate in a low-voltage enclosed bus duct according to the present invention;

[0032] Figure 7 The utility model is a side view of a fixed side plate in a low-voltage closed bus duct.

[0033] In the figure: 1 is a slot box; 2 is a heat dissipation slot; 3 is a fixed side panel; 4 is a baffle; 5 is a fixed lock; 6 is a support tube; 2-1 is a heat dissipation hole; 3-1 is a fixed slide; 3-2 is a sliding side panel; 3-3 is a slider; 3-4 is an arc rod; 3-5 is a limit block. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] Example 1: Figure 1-7 As shown, a low-voltage enclosed bus duct includes a trough box, a heat dissipation trough, a fixed side plate, a baffle, a fixed lock, a support tube and a heat dissipation hole.

[0036] The trough box is divided into two parts, namely the upper trough box and the lower trough box. Baffles are provided on the left and right sides of the upper trough box and the lower trough box. The upper trough box and the lower trough box are arranged opposite to each other and the upper sides are connected by a hinge, and the lower sides of the upper trough box and the lower trough box are connected by a fixed lock. The upper trough box and the lower trough box are two open rectangular blocks of the same size, which are opened when the busbar is installed. After installation, they are closed and fixed by fixed locks (the fixed locks can be selected according to actual conditions). After closing, the baffles on both sides of the trough box are also completely closed and open on the sides. The length of the baffles is set according to actual needs. The size of the baffles is appropriate, which can not only achieve the purpose of waterproofing but also realize ventilation.

[0037] A raised heat dissipation groove is provided in the middle of the upper trough box and the lower trough box respectively, and heat dissipation holes are provided on both sides of the heat dissipation groove. Square notches are provided on both sides of the upper trough box and the lower trough box respectively; two fixed side panels are symmetrically provided about the heat dissipation groove in the upper trough box and the lower trough box respectively; the upper trough box and the lower trough box are vertically provided with heat dissipation grooves, and the height of the protrusion of the heat dissipation groove affects the ventilation effect. The higher the protrusion height, the better the ventilation effect, but the protrusion height cannot be higher than the height of the busbar between the fixed side panels.

[0038] The fixed side plate includes a fixed slide, a sliding side plate and a slider. The fixed slide is fixed inside the upper trough box and the lower trough box. The slider is slidingly set inside the fixed slide, and the upper part of the slider is provided with a sliding side plate; the fixed slide is fixed in the trough box, and the sliding side plate fixed with the slider can move left and right. The distance of movement of the sliding side plate is limited due to the influence of both sides of the trough box, and the busbar can only move a small distance left and right.

[0039] The two sides of the bottom of the trough box are fixed with support pipes by bolts. The left and right sides of the bottom of the lower trough box are provided with support pipes for fixing.

[0040] The utility model provides a low-voltage enclosed bus duct, wherein a raised heat dissipation groove is provided in the middle of the upper and lower trough boxes, and a recessed heat dissipation groove is provided in the middle of the outer portions of the upper and lower trough boxes. The upper and lower trough boxes are provided with an integrated heat dissipation groove, and multiple heat dissipation holes are symmetrically provided on both sides of the heat dissipation groove to realize the heat dissipation function within the trough box.

[0041] The utility model provides a low-voltage closed bus duct, wherein the height of the square notches on both sides of the upper trough box and the lower trough box is lower than the height of the fixed side plate. The square notches on both sides of the upper trough box and the lower trough box are used for the entry and exit of the busbar. The busbar enters the trough box through the square notch on one side, is fixed on the fixed side plate, and finally leaves the busbar trough box from the other side of the trough box; the fixed side plate is provided with a V-shaped notch, which is fixed at different heights of the V-shaped notch according to the size of the busbar. Therefore, the height of the square notches on both sides of the upper trough box and the lower trough box needs to be set lower than the height of the fixed side plate, so that the busbar is kept on the same horizontal line as much as possible. Even if it is not on the same horizontal line, the height difference between the position of the busbar at the square notch and the position on the fixed side plate is very small.

[0042] The utility model provides a low-voltage enclosed bus duct, wherein the width of the square notches on both sides of the upper and lower trough boxes is smaller than the width of the fixed side panels. The fixed side panels are used to secure the busbars and are provided with multiple V-shaped notches. Since it is impossible to secure the busbars at the edges of the fixed side panels, the width of the square notches on both sides of the upper and lower trough boxes is smaller than the width of the fixed side panels, which does not affect the position of the busbars on the fixed side panels.

[0043] The utility model provides a low-voltage closed bus duct, wherein the top of the sliding side plate is provided with a V-shaped notch, and the fixed side plate further comprises an arc rod and a limit block, one end of the arc rod is fixed to one side in the V-shaped notch by a spring, and the other side in the V-shaped notch is provided with a limit block, and the other end of the arc rod contacts the lower side of the limit block. The sliding side plate in the fixed side plate is used to fix the busbar, and the V-shaped notch is used for fixing according to the size of the busbar. Busbars of any size can be fixed in the V-shaped notch. The busbar is put in from the top of the V-shaped notch, and contacts one side of the arc rod to drive the arc rod to rotate downward. When the busbar leaves the range of the arc rod, the arc rod automatically resets under the action of the spring, and the other end of the arc rod contacts the limit block to stop resetting, and the busbar moves downward and is stuck in the appropriate position of the V-shaped slot.

[0044] The utility model discloses a low-voltage closed bus duct, wherein the V-shaped notch is provided with a protective rubber. The protective rubber provided at the V-shaped notch can protect the busbar and reduce the friction between the busbar and the V-shaped notch, so that the busbar is more stably fixed in the V-shaped notch.

[0045] The utility model provides a low-voltage enclosed bus duct, wherein the spacing between two fixed side panels symmetrically arranged about the heat dissipation slot in the upper trough box is greater than the spacing between two fixed side panels symmetrically arranged about the heat dissipation slot in the lower trough box. The slightly larger spacing between the two fixed side panels symmetrically arranged about the heat dissipation slot in the upper trough box is intended to ensure more stable fixation of the busbar in the upper trough box. Although the busbar in the lower trough box is also stably fixed, when the upper and lower trough boxes are combined, the position of the fixed side panels is avoided as much as possible. Since the lower trough box is fixed as the bottom, the more stable fixed side panel structure with a larger spacing is preferably arranged in the upper trough box.

[0046] The utility model discloses a low-voltage enclosed bus duct. The upper and lower duct boxes extend along both sides of the duct box to form baffles. The baffles are intended to prevent water from entering. Since square notches are provided on both sides of the duct box for the busbars to enter and exit, rainwater and the like inevitably enter the busbars regardless of how closely the notches fit the busbars. Therefore, the baffles extending from both sides of the duct box can prevent rainwater from entering. Furthermore, by appropriately sizing the square notches, the purpose of water is further enhanced.

[0047] The utility model discloses a low-voltage closed bus duct, wherein the square notch is provided with a protective rubber. Since the square notch is in contact with the bus bar, the protective rubber serves the purpose of protecting the bus bar.

[0048] The utility model discloses a low-voltage enclosed bus duct. The duct box is entirely made of metal and coated with a protective layer. When the duct box is installed in an open-air environment, the protective layer can prevent corrosion and also act as an insulating layer to prevent grounding accidents between the busbar and the duct box.

[0049] Example 2: Figure 1-7 As shown, the specific working mode of a low-voltage closed bus duct in this embodiment is as follows:

[0050] Open the bus duct, and the busbar passes through the baffle and square notch from one side of the duct box, and finally is clamped on the sliding side plate. The other part of the busbar passes through the baffle and square notch on the other side from the other side of the duct box, and finally is clamped on the sliding side plate on the other side. The busbars between the two sliding side plates can be connected; when the busbar is clamped into the sliding side plate, the busbar is inserted from the upper part of the V-shaped notch, passes through the arc rod, and is clamped on the V-shaped notch. The two busbars to be connected are preferably fixed symmetrically in the sliding side plates. After all the busbars are fixed, the upper and lower duct boxes are closed and the busbar duct is fixed by the fixing locks;

[0051] Different busbars are fixed in different V-shaped notches or in different trough boxes. This arrangement ensures the neatness of the busbars and facilitates subsequent maintenance. If the V-shaped notches are full of busbars and some busbars are not fixed, they can be fixed in the V-shaped notches of existing busbars by stacking. The fixed side panels can be fine-tuned by fixing the slides and sliders, and the busbars can be slightly moved in the V-shaped notches to prevent the busbars from stretching and affecting their service life.

[0052] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A low-voltage enclosed bus duct, characterized by: The low-voltage closed bus duct comprises a trough box (1), a heat dissipation trough (2), a fixed side plate (3), a baffle (4), a fixed lock (5), a support tube (6) and a heat dissipation hole (2-1). The trough box (1) is divided into an upper trough box and a lower trough box, and baffles (4) are provided on the left and right sides of the upper trough box and the lower trough box. The upper trough box and the lower trough box are arranged opposite to each other and the upper sides are connected by a hinge. The lower sides of the upper trough box and the lower trough box are connected by a fixed lock (5). The middle of the upper trough box and the lower trough box are respectively provided with a raised heat dissipation trough (2), and the heat dissipation trough (2) is provided on both sides. There are heat dissipation holes (2-1), and square notches are respectively provided on both sides of the upper trough box and the lower trough box; two fixed side panels (3) are respectively symmetrically provided in the upper trough box and the lower trough box about the heat dissipation trough (2); the fixed side panels (3) include fixed slides (3-1), sliding side panels (3-2) and sliders (3-3); the fixed slides (3-1) are fixed inside the upper trough box and the lower trough box, the sliders (3-3) are slidably provided in the fixed slides (3-1), and the upper part of the sliders (3-3) is provided with sliding side panels (3-2); support tubes (6) are fixed to both sides of the bottom of the trough box (1) by bolts.

2. The low-voltage enclosed bus duct according to claim 1, characterized in that: A raised heat dissipation slot (2) is provided in the middle of the upper slot box and the lower slot box, and a recessed heat dissipation slot (2) is provided in the middle of the outer portions of the upper slot box and the lower slot box.

3. The low-voltage enclosed bus duct according to claim 1, characterized in that: The heights of the square notches on both sides of the upper trough box and the lower trough box are lower than the height of the fixed side plates (3).

4. The low-voltage enclosed bus duct according to claim 1, characterized in that: The width of the square notches on both sides of the upper trough box and the lower trough box is smaller than the width of the fixed side plate (3).

5. The low-voltage enclosed bus duct according to claim 1, characterized in that: A V-shaped notch is provided at the top of the sliding side plate (3-2), and the fixed side plate (3) further comprises an arc-shaped rod (3-4) and a limit block (3-5), one end of the arc-shaped rod (3-4) is fixed to one side of the V-shaped notch by a spring, and a limit block (3-5) is provided on the other side of the V-shaped notch, and the other end of the arc-shaped rod (3-4) contacts the lower side of the limit block (3-5).

6. The low-voltage enclosed bus duct according to claim 5, characterized in that: The V-shaped notch is provided with protective rubber.

7. The low-voltage enclosed bus duct according to claim 1, characterized in that: The distance between the two fixed side plates (3) symmetrically arranged about the heat dissipation slot (2) in the upper slot box is greater than the distance between the two fixed side plates (3) symmetrically arranged about the heat dissipation slot (2) in the lower slot box.

8. The low-voltage enclosed bus duct according to claim 1, characterized in that: The upper slot box and the lower slot box extend along both sides of the heat dissipation slot (2) to form a baffle (4).

9. The low-voltage enclosed bus duct according to claim 1, characterized in that: The square notch is provided with protective rubber.

10. The low-voltage enclosed bus duct according to claim 1, characterized in that: The trough box (1) is made entirely of metal and has a protective layer coated on its surface.

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