Bidirectional busbar

Abstract

The utility model discloses a bidirectional busbar, which comprises a front protective cover, a plurality of bases sequentially arranged at the top of the front protective cover, a cover plate arranged on one side of each base, and a rear protective cover arranged at the top of each base, a plurality of third heat dissipation holes are formed in the front protective cover in a penetrating manner, and a plurality of second heat dissipation holes are formed in the cover plate in a penetrating manner. By means of the third heat dissipation holes, the second heat dissipation holes and the first heat dissipation holes, heat in the base and the front protection cover can be conveniently dissipated to the outside, the situation that the temperature is too high due to heat accumulation is avoided, and the service life of the LED lamp is prolonged. And the second heat dissipation holes can be shielded through the arranged first blocking frame, the first heat dissipation holes can be shielded through the arranged third blocking frame, and impurities are prevented from entering the base through the first heat dissipation holes and the second heat dissipation holes.

Description

Technical Field

[0001] The utility model relates to the technical field of busbars, and specifically relates to a two-way busbar. Background Art

[0002] A busbar is an important power transmission and distribution device used to connect multiple circuits or devices in a power system to achieve the transmission and distribution of electric energy. A two-way busbar is a special type of busbar that enables bidirectional transmission of electric energy. It can not only transmit electric energy to the load end but also recover electric energy when needed. It is applicable to various power transmission scenarios, including electric vehicle charging, photovoltaic power generation, wind power generation, etc.

[0003] The existing two-way busbar usually does not have heat dissipation holes on its housing, and heat is easily accumulated inside, resulting in too high a temperature. As the temperature rises, the resistivity of the busbar will increase, which in turn leads to an increase in resistance. The increase in resistance will cause the busbar to generate more heat when transmitting current, forming a vicious cycle, thus affecting the electrical performance and service life of the busbar. Content of the Utility Model

[0004] The purpose of the utility model is to provide a two-way busbar to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A two-way busbar includes a front protective cover, a plurality of bases sequentially arranged on the top of the front protective cover, a cover plate installed on one side of the base, and a rear protective cover arranged on the top of the base. A plurality of third heat dissipation holes are penetrated through the front protective cover, a plurality of second heat dissipation holes are penetrated through the cover plate, a first retaining frame corresponding to the second heat dissipation holes is arranged on the inner side of the cover plate, a first heat dissipation hole is penetrated through the rear protective cover, and a third retaining frame corresponding to the first heat dissipation hole is integrally formed on the inner side of the rear protective cover.

[0006] As a preferred scheme of the utility model, a receiving groove is arranged on the inner wall of the base, a baffle is installed inside the receiving groove, a plurality of equally spaced retaining pieces are arranged on one side of the baffle, and an inclined block is arranged on the inner wall of the receiving groove.

[0007] As a preferred scheme of the utility model, a fourth heat dissipation hole is penetrated through the retaining piece, and a second retaining frame corresponding to the fourth heat dissipation hole is arranged on one side of the retaining piece.

[0008] As a preferred scheme of the utility model, alignment frames are arranged on both the top and bottom of the base, and a convex edge matched with the alignment frame is arranged on the top of the front protective cover.

[0009] As a preferred embodiment of the present utility model, a contraction part is provided on the top of the cover plate, and a convex part matching with the contraction part is provided on the bottom of the cover plate.

[0010] As a preferred embodiment of the present utility model, a clamping groove is formed on the cover plate, and a clamping block matching with the clamping groove is provided on one side of the base.

[0011] As a preferred embodiment of the present utility model, a rear protective cover is installed on the top of the base, a buckle is provided on the inner side wall of the rear protective cover, and a fixing groove matching with the buckle is provided on the base.

[0012] As a preferred embodiment of the present utility model, a plurality of main copper parts penetrate through the inside of the base, a branch copper part is installed inside the base, a copper rivet is provided between the branch copper part and the main copper part, one end of the main copper part extends into the inside of the front protective cover, a connecting piece is provided at one end of the main copper part, the connecting piece is located inside the front protective cover, and through holes are respectively formed through the connecting piece and the main copper part.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: through the provided third heat dissipation holes, second heat dissipation holes and first heat dissipation holes, the heat inside the base and the front protective cover can be dissipated to the outside, avoiding heat accumulation, resulting in too high temperature, affecting the electrical performance and service life of the busbar, and through the provided first baffle frame, the second heat dissipation holes can be blocked, and the provided third baffle frame can block the first heat dissipation holes, preventing impurities from entering the base through the first heat dissipation holes and the second heat dissipation holes, and improving its reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a three-dimensional structural diagram of the present utility model;

[0015] Figure 2 is a structural diagram of the rear side of the present utility model;

[0016] Figure 3 is an exploded view of the present utility model;

[0017] Figure 4 is a structural diagram of the main copper part, branch copper part and connecting piece of the present utility model;

[0018] Figure 5 is a rear view of the present utility model;

[0019] Figure 6 is a structural diagram of the cover plate of the present utility model;

[0020] Figure 7 is a structural diagram of the base of the present utility model;

[0021] Figure 8 Schematic structural diagram of the front protective cover of the present utility model;

[0022] Figure 9 Schematic structural diagram of the rear protective cover of the present utility model.

[0023] In the figure: 1, front protective cover; 2, base; 3, rear protective cover; 4, protruding part; 5, first heat dissipation hole; 6, second heat dissipation hole; 7, cover plate; 8, third heat dissipation hole; 9, copper support; 10, baffle; 11, main copper piece; 12, connecting piece; 13, copper rivet; 14, contraction part; 15, retaining piece; 16, through hole; 17, card slot; 18, first retaining frame; 19, inclined block; 20, second retaining frame; 21, clamping block; 22, accommodating groove; 23, fourth heat dissipation hole; 24, convex edge; 25, third retaining frame; 26, buckle; 27, fixing groove; 28, alignment frame. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figures 1 to 9 , the present utility model provides a technical solution: a two-way busbar, including a front protective cover 1, a plurality of bases 2 sequentially arranged on the top of the front protective cover 1, a cover plate 7 installed on one side of the base 2, and a rear protective cover 3 arranged on the top of the base 2. According to actual use requirements, the number of bases 2 can be increased or decreased. A plurality of third heat dissipation holes 8 are penetrated through the front protective cover 1, a plurality of second heat dissipation holes 6 are penetrated through the cover plate 7, and a first retaining frame 18 corresponding to the second heat dissipation holes 6 is arranged inside the cover plate 7. The first retaining frame 18 is used to block the second heat dissipation holes 6 to prevent external impurities from entering the base 2 through the second heat dissipation holes 6. A first heat dissipation hole 5 is penetrated through the rear protective cover 3. The heat inside the base 2 can be dissipated to the outside through the second heat dissipation holes 6 and the first heat dissipation holes 5. The heat inside the front protective cover 1 can be dissipated to the outside through the third heat dissipation holes 8, thereby avoiding the accumulation of heat inside the front protective cover 1 and the base 2, resulting in too high a temperature and affecting the electrical performance of the busbar. A third retaining frame 25 corresponding to the first heat dissipation hole 5 is integrally formed inside the rear protective cover 3. The third retaining frame 25 is used to block the first heat dissipation hole 5 to prevent external impurities from entering the base 2 through the first heat dissipation hole 5, and will not affect the heat dissipation effect of the first heat dissipation hole 5.

[0026] Among them, the inner wall of the base 2 is provided with a receiving groove 22. A baffle 10 is installed inside the receiving groove 22. A plurality of equally spaced baffle pieces 15 are provided on one side of the baffle 10. The baffle pieces 15 are used to block the base 2 to prevent impurities from entering the base 2. The inner wall of the receiving groove 22 is provided with an inclined block 19, and the inclined block 19 is used to fix the baffle 10 to prevent the baffle 10 from detaching from the receiving groove 22.

[0027] Among them, a fourth heat dissipation hole 23 is provided through the baffle piece 15. Part of the heat inside the base 2 can be dissipated through the fourth heat dissipation hole 23, avoiding the difficulty of heat dissipation caused by the blockage of the baffle piece 15. A second blocking frame 20 corresponding to the fourth heat dissipation hole 23 is provided on one side of the baffle piece 15. The second blocking frame 20 is used to block the fourth heat dissipation hole 23 to prevent external impurities from entering the base 2 through the fourth heat dissipation hole 23 and will not affect the heat dissipation function of the fourth heat dissipation hole 23.

[0028] Among them, alignment frames 28 are provided at both the top and bottom of the base 2. A convex edge 24 that mates with the alignment frame 28 is provided at the top of the front protective cover 1. The alignment frame 28 can be snapped into the inside of the convex edge 24. Ultrasonic welding can be performed between the alignment frame 28 and the convex edge 24 to ensure a firm connection between the front protective cover 1 and the base 2. Also, adjacent alignment frames 28 can be butt-jointed with each other for ultrasonic welding, thereby ensuring a firm connection between the two bases 2.

[0029] Among them, a contraction part 14 is provided at the top of the cover plate 7. A convex part 4 that mates with the contraction part 14 is provided at the bottom of the cover plate 7. The convex part 4 can be inserted into the inside of the contraction part 14 to ensure a tight connection between the two cover plates 7 without any gaps.

[0030] Among them, a card slot 17 is provided on the cover plate 7. A card block 21 that mates with the card slot 17 is provided on one side of the base 2. The cooperation between the card block 21 and the card slot 17 is used to fix the cover plate 7 on the base 2.

[0031] Among them, a rear protective cover 3 is installed on the top of the base 2. A buckle 26 is provided on the inner side wall of the rear protective cover 3. A fixing groove 26 that mates with the buckle 26 is provided on the base 2. The cooperation between the buckle 26 and the fixing groove 26 is used to fix the rear protective cover 3 on the base 2.

[0032] Among them, a plurality of main copper parts 11 are arranged inside the base 2, a supporting copper part 9 is installed inside the base 2, and a copper rivet 13 is arranged between the supporting copper part 9 and the main copper part 11. The copper rivet 13 is used to connect and fix the supporting copper part 9 and the main copper part 11. One end of the main copper part 11 extends into the interior of the front protective cover 1. A connecting piece 12 is arranged at one end of the main copper part 11. The connecting piece 12 is used to connect with the circuit breaker. The connecting piece 12 is located inside the front protective cover 1, and through holes 16 are respectively formed through the connecting piece 12 and the main copper part 11. The through holes 16 facilitate the use of bolts and nuts to fix the connecting piece 12 and the main copper part 11, so that the connecting piece 12 is convenient for disassembly and assembly, and thus different models of connecting pieces 12 can be replaced to adapt to different models of circuit breakers.

[0033] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "center", "both ends", etc. is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It 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.

[0034] In addition, the terms "first", "second", "third", "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third", "fourth" may explicitly or implicitly include at least one of such features.

[0035] In the present invention, unless otherwise clearly defined and limited, the terms "installed", "set", "connected", "fixed", "swiveling connection", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. It can be the internal communication of two elements or the interaction relationship between two elements. Unless otherwise clearly limited, for those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0036] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A two-way bus bar, comprising a front protective cover (1), a plurality of bases (2) sequentially arranged on the top of the front protective cover (1), a cover plate (7) installed on one side of the base (2), and a rear protective cover (3) arranged on the top of the base (2), characterized in that: The front protective cover (1) is provided with a plurality of third heat dissipation holes (8), the cover plate (7) is provided with a plurality of second heat dissipation holes (6), the inner side of the cover plate (7) is provided with a first stop frame (18) corresponding to the second heat dissipation holes (6), the rear protective cover (3) is provided with a first heat dissipation hole (5), and the inner side of the rear protective cover (3) is integrally formed with a third stop frame (25) corresponding to the first heat dissipation hole (5).

2. The two-way bus bar according to claim 1, characterized in that: The inner wall of the base (2) is provided with a receiving groove (22), a baffle (10) is installed inside the receiving groove (22), a plurality of baffles (15) distributed at equal distances are provided on one side of the baffle (10), and an inclined block (19) is provided on the inner wall of the receiving groove (22).

3. A two-way bus according to claim 2, characterized in that: A fourth heat dissipation hole (23) is formed through the baffle (15), and a second baffle frame (20) corresponding to the fourth heat dissipation hole (23) is provided on one side of the baffle (15).

4. A two-way bus bar according to claim 1, characterized in that: The top and bottom of the base (2) are both provided with alignment frames (28), and the top of the front protective cover (1) is provided with a convex edge (24) that matches the alignment frame (28).

5. A two-way bus bar according to claim 1, characterized in that: The top of the cover plate (7) is provided with a contraction portion (14), and the bottom of the cover plate (7) is provided with a protrusion (4) that matches the contraction portion (14).

6. A two-way bus bar according to claim 1, characterized in that: The cover plate (7) is provided with a card slot (17), and one side of the base (2) is provided with a card block (21) that matches the card slot (17).

7. A two-way busbar according to claim 1, characterized in that: A rear protective cover (3) is installed on the top of the base (2), a buckle (26) is provided on the inner side wall of the rear protective cover (3), and a fixing groove (27) matching with the buckle (26) is provided on the base (2).

8. A two-way bus bar according to claim 1, characterized in that: A plurality of main copper parts (11) are provided inside the base (2), a supporting copper part (9) is installed inside the base (2), a copper rivet (13) is provided between the supporting copper part (9) and the main copper part (11), one end of the main copper part (11) extends to the inside of the front protective cover (1), a connecting piece (12) is provided at one end of the main copper part (11), the connecting piece (12) is located inside the front protective cover (1), and through holes (16) are provided on both the connecting piece (12) and the main copper part (11).

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