Bus bar

Abstract

The utility model provides a busbar, which comprises a base and positioning blocks arranged on two sides of the base, a positioning structure is arranged between the base and the positioning blocks, the positioning structure comprises an insertion block arranged on one side of the base or the positioning blocks and an insertion groove arranged on the other side of the base or the positioning blocks and matched with the insertion block, and the insertion groove is matched with the insertion block. According to the busbar, the defect that in the prior art, no positioning structure exists between the plug and the base, and consequently the plug is prone to falling off from the two sides of the base can be overcome.

Description

Technical Field

[0001] The utility model relates to the technical field of bus bars, in particular to a bus bar. Background Art

[0002] The busbar is an electrical connection component of a power module, which is usually used to connect multiple circuit breakers to distribute the total current to each power circuit. When connecting, the terminals on the busbar are connected to the wiring terminals of the circuit breaker. During use, in order to prevent the copper busbar from moving out of the slot and causing the copper busbar to separate from the base, plugs are generally provided on both sides of the copper busbar. In the prior art, in the patent with patent number CN213989489U, a busbar is disclosed, which includes a base and plugs plugged on both sides of the base, but the plug is directly sleeved on both sides of the base. Since there is no positioning structure between the plug and the base, the plug is easy to fall off from both sides of the base. Utility Model Content

[0003] Therefore, the technical problem to be solved by the utility model is to overcome the defect in the prior art that there is no positioning structure between the plug and the base, which causes the plug to easily fall from both sides of the base, thereby providing a bus that can prevent the plug from falling from both sides of the base.

[0004] To this end, the utility model provides a busbar, including a base and positioning blocks arranged on both sides of the base, a positioning structure is arranged between the base and the positioning blocks, the positioning structure includes an insert block arranged on one side of the base or the positioning block and a slot arranged on the other side and adapted to the insert block, and the insert block and the slot are interference fit.

[0005] Furthermore: the base has a slotted structure, the positioning block also includes a positioning shell wrapped around the base from bottom to top and a positioning frame arranged on the positioning shell for closing the side of the slotted structure, and any adjacent positioning frames are connected by connecting rods.

[0006] Furthermore: the slot structure is provided with a first slot and a second slot respectively installed with a conductive bar and a third slot for increasing the creepage distance between the first slot and the second slot, and a plurality of heat dissipation slots are provided in the third slot.

[0007] Furthermore: the first slot, the second slot and the third slot are separated by a partition.

[0008] Further: the insert block is inserted into the third slot and a guiding slope is provided at the insertion end.

[0009] Further: ventilation holes for assisting heat dissipation are provided between the bottom of the base and the inner wall of the positioning shell.

[0010] Furthermore: a gas dispersion groove for exhausting air when the positioning shell is inserted into the base is arranged on the side wall of the shell, and the gas dispersion groove is connected to the third slot.

[0011] The technical solution of the utility model has the following advantages:

[0012] 1. The utility model provides a busbar, in which positioning blocks are arranged on both sides of the base, and the base and the positioning blocks are connected by interference fit. During the installation process, the slot needs to be inserted into the plug block with force. The plug-in method is simple, and after the plug block and the slot are interfered with, the plug block is difficult to be removed from the slot. This is superior to the existing technology and avoids the positioning block from being separated from the base during use, thereby causing the copper busbar to move out of the slot.

[0013] 2. The utility model provides a busbar, in which positioning frames are installed on both sides of the base, and the two positioning frames are connected by connecting rods. Through the setting of the connecting rods, adjacent bases can be effectively connected together. When the positioning block is damaged or only one is needed, the connecting rod can be broken off and used separately. The positioning block includes a positioning shell and a positioning frame arranged on the positioning shell. During the installation process, the positioning shell is wrapped around the outside of the base, and the insert block of the positioning shell is inserted into the slot of the base. At the same time, the positioning frame abuts against the end of the base, so that the copper busbar on the base cannot slide out from the end of the base, thereby avoiding the separation of the copper busbar from the base. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 The overall structure diagram of the busbar;

[0016] Figure 2 It is the connection structure diagram between the positioning block and the base;

[0017] Figure 3 A schematic diagram of the mechanism for connecting two positioning blocks;

[0018] Figure 4 It is a cross-sectional structural diagram between the positioning block and the base;

[0019] Figure 5 It is a top view between the positioning block and the base.

[0020] Description of reference numerals:

[0021] 1. Base; 2. Positioning block; 21. Positioning shell; 22. Positioning frame; 3. Positioning structure; 31. Insert block; 32. Slot; 4. Connecting rod; 5. Slot structure; 51. First slot; 52. Second slot; 53. Third slot; 6. Heat dissipation slot; 7. Guide slope; 8. Ventilation hole; 9. Air dispersion slot. DETAILED DESCRIPTION

[0022] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are 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 limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0026] Example

[0027] The present embodiment provides a busbar, comprising a base 1 and positioning blocks 2 arranged on both sides of the base 1, a positioning structure 3 is arranged between the base 1 and the positioning block 2, the positioning structure 3 comprises an insert block 31 arranged on one side of the base 1 or the positioning block 2 and a slot 32 arranged on the other side and adapted to the insert block 31, and the insert block 31 and the slot 32 are interference fit.

[0028] The above specific improvements are: Figure 1 and Figure 2 As shown, compared with the prior art, positioning blocks 2 are provided on both sides of the base 1, and the base 1 and the positioning blocks 2 are connected by interference fit. During the installation process, the slot 32 needs to be forcefully inserted into the plug block 31. The plug-in method is simple, and after the plug block 31 and the slot 32 are interference fit, the plug block 31 is difficult to come out of the slot 32. This is superior to the prior art and prevents the positioning block 2 from being separated from the base 1 during use, thereby causing the copper busbar to move out of the slot.

[0029] On the basis of the above embodiment: the base 1 has a slotted structure 5, the positioning block 2 also includes a positioning shell 21 wrapped around the base 1 from bottom to top, and a positioning frame 22 arranged on the positioning shell 21 for closing the side of the slotted structure 5, and any adjacent positioning frames 22 are connected by a connecting rod 4.

[0030] The above specific improvements are: Figure 2 and Figure 3 As shown, the positioning frame 22 is installed on both sides of the base 1, and the two positioning frames 22 are connected by a connecting rod 4. Through the setting of the connecting rod 4, the adjacent bases 1 can be effectively connected together. When the positioning block 2 is damaged or only one is needed, the connecting rod 4 can be broken off and used alone. The positioning block 2 includes a positioning shell 21 and a positioning frame 22 arranged on the positioning shell 21. During the installation process, the positioning shell 21 is wrapped around the outside of the base 1, and the insert block 31 of the positioning shell 21 is inserted into the slot 32 of the base 1. At the same time, the positioning frame 22 abuts against the end of the base 1, so that the copper busbar on the base 1 cannot slide out from the end of the base 1, thereby preventing the copper busbar from being separated from the base 1.

[0031] On the basis of the above embodiment: the slot structure 5 is provided with a first slot 51 and a second slot 52 respectively installed with a conductive bar and a third slot 53 for increasing the creepage distance between the first slot 51 and the second slot 52 , and a plurality of heat dissipation slots 6 are provided in the third slot 53 .

[0032] The above specific improvements are: Figure 5 As shown, the slot structure 5 includes a first slot 51, a third slot 53 and a second slot 52 which are arranged in sequence. By setting the third slot 53, the creepage distance between the first slot 51 and the second slot 52 can be increased, thereby improving the safety of the product.

[0033] On the basis of the above embodiment: the first slot 51 , the second slot 52 and the third slot 53 are separated by partitions.

[0034] The above specific improvements are: Figure 5As shown, the first slot 51 and the third slot 53 are separated by a partition, and the third slot 53 and the second slot 52 are separated by a partition. Through the setting of the partition, the height of the bent part of the metal joint can be located below the upper end surface of the base 1, so as to avoid the bent part of the metal joint of the copper busbar being higher than the upper end surface of the partition, thereby preventing the metal joint from being inserted into the circuit breaker interface from being blocked and interfered. In addition, the third slot 53 is set in the middle position of the two partitions, which can increase the creepage distance between the first slot 51 and the second slot 52.

[0035] On the basis of the above embodiment: the insert block 31 is inserted into the third slot 53 and a guiding slope 7 is provided at the insertion end.

[0036] The above specific improvements are: Figure 3 and Figure 4 As shown, the plug block 31 is arranged in the third slot 53, and the guide bevel 7 is arranged at the position where the plug block 31 faces the third slot 53. When the plug block 31 is inserted into the third slot 53, the side surface of the third slot 53 (that is, the partition) will contact the guide bevel 7, and then the plug block 31 will be slowly guided into the third slot 53 through the inclined surface of the guide bevel 7, so that the plug block 31 is plugged into the slot 32.

[0037] On the basis of the above embodiment: a ventilation hole 8 for assisting heat dissipation is provided between the bottom of the base 1 and the inner wall of the positioning shell 21 .

[0038] The above specific improvements are: Figure 3 As shown, when the base 1 is installed on the inner wall of the positioning shell 21, during operation, the copper busbar will generate a large amount of heat, and the heat is conducted to the positioning shell 21. Through the setting of the ventilation holes 8, the heat on the base 1 can be brought out by the wind force in the ventilation holes 8, thereby cooling the base 1.

[0039] On the basis of the above embodiment: a gas dispersion groove 9 for exhausting gas when the positioning housing 21 is inserted into the base 1 is arranged on the side wall of the housing, and the gas dispersion groove 9 is communicated with the third slot 53 .

[0040] The above specific improvements are: Figure 1 and Figure 2 As shown, through the arrangement of the air diffusion groove 9, when the copper busbar generates a large amount of heat during operation, the heat will be conducted to the partition, and the third slot 53 and the relatively arranged air diffusion groove 9 can form convection in the third slot 53, thereby reducing the heat of the third slot 53 and the base 1 through gas flow.

[0041] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A busbar, characterized in that: The invention comprises a base (1) and positioning blocks (2) arranged on both sides of the base (1); a positioning structure (3) is arranged between the base (1) and the positioning block (2); the positioning structure (3) comprises an insert block (31) arranged on one side of the base (1) or the positioning block (2) and a slot (32) arranged on the other side and matched with the insert block (31); the insert block (31) and the slot (32) are interference fit.

2. A busbar according to claim 1, characterized in that: The base (1) has a slotted structure (5), and the positioning block (2) further comprises a positioning shell (21) wrapped around the base (1) from bottom to top, and a positioning frame (22) arranged on the positioning shell (21) and used to close the side of the slotted structure (5), and any adjacent positioning frames (22) are connected by a connecting rod (4).

3. A busbar according to claim 2, characterized in that: The slotted structure (5) is provided with a first slot (51) and a second slot (52) respectively provided with conductive bars, and a third slot (53) used to increase the creepage distance between the first slot (51) and the second slot (52), and a plurality of heat dissipation slots (6) are provided in the third slot (53).

4. A busbar according to claim 3, characterized in that: The first slot (51), the second slot (52) and the third slot (53) are separated by a partition.

5. A busbar according to claim 4, characterized in that: The insert block (31) is inserted into the third slot (53) and a guiding slope (7) is provided at the insertion end.

6. A busbar according to claim 5, characterized in that: A ventilation hole (8) for assisting heat dissipation is provided between the bottom of the base (1) and the inner wall of the positioning shell (21).

7. A busbar according to claim 6, characterized in that: The shell side wall is provided with an air dispersion groove (9) for exhausting air when the positioning shell (21) is inserted into the base (1), and the air dispersion groove (9) is connected to the third slot (53).

Images