A busbar trunking with quick connection and locking

Abstract

The present invention discloses a busbar trunking with quick connection and locking, which includes a busbar trunking main body, a locking mechanism and two protection sheets. Four conductive bars are arranged side by side in the busbar trunking main body. The wiring parts at both ends of the four conductive bars are respectively exposed outside both ends of the busbar trunking main body to form two wiring terminals. Insulating sleeves are sleeved on each wiring part, and a notch for the wiring part to be exposed is provided on one side of the insulating sleeve; the two wiring terminals are respectively a socket end and a plug end; at the socket end, the insulating sleeves of the two outer wiring parts are respectively in contact with the inner side surfaces of the protection sheets, the two inner wiring parts are arranged side by side and their insulating sleeves are in contact with each other; at the plug end, the outer wiring part and the adjacent inner wiring part are arranged side by side and the insulating surfaces of their insulating sleeves are in contact with each other; the locking mechanism is arranged at the socket end. This kind of busbar trunking can realize the quick connection and locking of the corresponding conductive bars when the busbar trunking is connected, has a good connection effect, and can effectively improve the safety during the power transmission process.

Description

Technical Field

[0001] The present invention relates to a busbar trunking for power transmission, and particularly to a busbar trunking with quick connection and locking. Background Art

[0002] With the emergence of modern engineering facilities and equipment, the power consumption of all walks of life has increased rapidly. As a traditional cable for power transmission, it can no longer meet the requirements in a large-current transmission system. The busbar trunking, as a new type of power distribution device, has emerged and is generally used to connect power supply devices such as accessory boxes, plug-in boxes, other busbar trunkings, and generators.

[0003] In the prior art, the connection heads in the busbar trunking all adopt a flat structure. For example, the busbar trunkings with publication numbers CN119905949A and CN119482224A. When connecting such busbar trunkings, the connection head at the front end of one busbar trunking is locked and connected to the connection head at the rear end of another busbar trunking through a busbar connector, so that the corresponding busbars between the two busbar trunkings are in contact with each other to achieve the function of busbar connection. However, due to the connection through a busbar connector, the busbar connector is generally square and has a small conductive area, which is prone to high-temperature overheating phenomena and even leads to explosion. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a busbar trunking with quick connection and locking, which can achieve quick connection and locking of corresponding busbars when the busbar trunking is connected, has a good connection effect, and can effectively improve the safety during the power transmission process.

[0005] To solve the above technical problem, the following technical solutions are adopted:

[0006] A bus duct with quick connection and locking, comprising a bus duct body, four conductive bars arranged side by side in the bus duct body, the wiring parts at both ends of the four conductive bars are respectively exposed outside the two ends of the bus duct body to form two wiring terminals, characterized in that: it also includes two protective sheets and a locking mechanism, each of the wiring parts is sleeved with an insulating sleeve, and one side of the insulating sleeve is provided with a notch for exposing the wiring part; the two wiring terminals are respectively a slot end and a plug end; one end of the two protective sheets is respectively locked on the bus duct body and the two protective sheets are respectively located on both sides of the slot end; at the slot end, the roots of the two outer wiring parts are both outwardly bent parts and their insulating sleeves are The notches face inward, the insulating surfaces of the insulating sleeves of the two outer wiring parts are both in contact with the inner side surfaces of the corresponding protective sheets, the roots of the two inner wiring parts are both inner bends bent inwardly and the notches of their insulating sleeves face outwardly, the two inner wiring parts are arranged close together and the insulating surfaces of their insulating sleeves are in contact with each other; at the plug end, the roots of the two outer wiring parts are both inner bends bent inwardly and the notches of their insulating sleeves face outwardly, the roots of the two inner wiring parts are both outer bends bent outwardly and the notches of their insulating sleeves face inward, the outer wiring parts are arranged close together with the adjacent inner wiring parts and the insulating surfaces of their insulating sleeves are in contact with each other; the locking mechanism is arranged at the slot end.

[0007] Firstly, the connection terminals of the bus duct are set as slot terminals and plug terminals and a locking mechanism is provided. When two bus ducts are connected, it is sufficient to insert the plug terminal of one of them into the slot terminal of the other and lock it through the locking mechanism. No bus connector is required, and quick connection and locking can be achieved. The connection area is not limited by the bus connector and can be determined by the area of the connection part, which greatly expands the connection area and avoids high temperature overheating. Secondly, at the slot end, the protective sheet limits the overall width of the slot. On this basis, each connection part adopts a bending design, which not only forms a plug-in gap between the outer connection part and the adjacent inner connection part, but also makes the plug-in gap in the pre-bending design. It is easy to expand outward during the insertion process, and has a certain rebound after insertion to hold the plug tightly, forming a bell mouth at the root of the plug-in gap, which can allow the end of the plug to squeeze into a smaller gap to tighten the plug; thirdly, since the insulating sleeve of the distribution equipment generally adopts epoxy resin, which has high hardness and small elastic deformation, the two inner wiring parts close together at the slot end and the wiring parts close together at the plug end are allowed to be compressed to a certain extent in the middle when locked, and after locking, an outward thrust is generated to hold the wiring part of the plug end firmly, so that even if the locking mechanism is loose, the plug end can be firmly in close contact with the slot end and will not be easily displaced.

[0008] Of course, when plugging in with other types of bus ducts, the wiring part of the plug end of the other bus duct can be bent, and then an insulating sleeve can be put on, so that the plug end of the bus duct can be plugged in smoothly.

[0009] When one of the outer wiring parts is to be used as the neutral wire, the insulating sleeve on the outer wiring part may have notches on both sides, so that the other side of the outer wiring part can contact the corresponding protective piece.

[0010] In a preferred embodiment, the insulating sleeve is provided with an inwardly concave slot with an opening facing one side, and the opening of the inwardly concave slot constitutes the notch. The wiring part is inserted into the inwardly concave slot of the corresponding insulating sleeve and covered by the inwardly concave slot, and the side surface of the wiring part protrudes from the notch of the insulating sleeve.

[0011] In a further preferred embodiment, at the end of the slot, the inner side ends of the insulating sleeves of the two outer wiring parts are provided with first inclined surfaces that incline outward, and the outer side ends of the insulating sleeves of the two inner wiring parts are provided with second inclined surfaces that incline inward; at the end of the plug, the outer side ends of the insulating sleeves of the two outer wiring parts are provided with third inclined surfaces that incline inward, and the inner side ends of the insulating sleeves of the two inner wiring parts are provided with fourth inclined surfaces that incline outward. The ends of the insulating sleeves of each wiring part at the slot end can form a flared opening by setting the inclined surfaces; the ends of the insulating sleeves of each wiring part at the plug end can form a pointed end by setting the inclined surfaces, so that when the plug end is inserted into the slot end, it can be more easily inserted; at the same time, when the connection is completed, the ends of each insulating sleeve can extend into the flared opening formed by the corresponding inner bent part and outer bent part.

[0012] In a further preferred embodiment, two deformation grooves are formed on the side surface of the insulating sleeve where the notch is located. The two deformation grooves are respectively located on the upper and lower sides of the inwardly concave slot, and the deformation grooves are arranged along the length direction of the inwardly concave slot. By providing the two deformation grooves, even if deformation occurs when the wiring part is covered by the insulating sleeve, the deformation grooves can provide a certain deformation space to avoid deformation of the insulating sleeve; at the same time, during daily power-on, the deformation grooves can also play a certain role in heat dissipation.

[0013] In a further preferred embodiment, the insulating sleeve is also provided with a notch communicating with the end of the inwardly concave slot. At the slot end, the notch is located at the front end of the insulating sleeve, and at the plug end, the notch is located at the rear end of the insulating sleeve. The notch can be used as a finger position for a finger to extend into when the wiring part is installed and disassembled. After installation, it can also play a role in assisting heat dissipation and providing a deformation space. In the above front and rear directions, the position of the slot end is the front, and the position of the plug end is the rear.

[0014] In a preferred embodiment, the locking mechanism includes at least one connecting bolt and at least one connecting nut. At least one connecting hole corresponding in position is respectively formed on the protective sheet, the wiring part, and the insulating sleeve. An insulating ring extending towards the notch is provided at the edge of the connecting hole on the insulating sleeve, and the insulating ring extends into the connecting hole of the corresponding wiring part. The number of the connecting bolts, the connecting nuts, and the connecting holes is the same and they correspond to each other one by one. The connecting bolts sequentially pass through each connecting hole and are threadedly connected with the connecting nuts. When two busbars are connected, after the connecting bolts pass through each connecting hole from the outside to the inside of one protective sheet in sequence, they can be locked with the connecting nuts on the outside of the other protective sheet to prevent disconnection. The insulating ring is provided to prevent the rod part of the connecting nut from contacting the wiring part and avoid the connecting nuts from connecting the wiring parts in series.

[0015] In a further preferred embodiment, an insulating sleeve is sleeved on the rod part of the connecting bolt. The insulating sleeve is provided to further prevent the rod part of the connecting bolt from contacting the wiring part.

[0016] In a further preferred embodiment, the number of the connecting bolts, the connecting nuts, and the connecting holes is two.

[0017] In a preferred embodiment, the roots of the two protective sheets are both first pre-bent parts bent inwards, and the front ends of the protective sheets are second pre-bent parts bent outwards. The inner side surface at the middle position of the protective sheet is attached to the insulating surface of the insulating sleeve of the corresponding outer wiring part. The protective sheets are arranged in this structure, and the front ends of the two protective sheets can form a trumpet-shaped inlet. When plugging in, the plug end of another busbar is more likely to be inserted from the front end of the protective sheet. And through the pre-bending of the roots of the protective sheets, the corresponding outer wiring parts can be compressed towards the middle, and after the busbars are connected, the outer wiring parts at the slot end can be kept in close contact with the corresponding outer wiring parts at the plug end.

[0018] The beneficial effects of the present invention are as follows: This kind of busbar can realize the quick self-locking connection of the corresponding busbars during the connection of the busbars, the connection effect is good, there will be no poor contact situation, and it can effectively improve the safety during the power transmission process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of the busbar in the embodiment of the present invention;

[0020] Figure 2 It is an enlarged view of the plug end in the embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0021] The present invention will be further described below in conjunction with the drawings and specific embodiments:

[0022] As Figure 1-2A bus duct with quick connection and locking is shown, comprising a bus duct body 1, two protective sheets 2 and a locking mechanism 3. Four conductive bars 4 are arranged side by side in the bus duct body 1. The wiring parts at both ends of the four conductive bars 4 are respectively exposed outside the two ends of the bus duct body 1 to form two wiring terminals. An insulating sleeve 5 is sleeved on each wiring part, and a notch 501 is provided on one side of the insulating sleeve 5 for exposing the wiring part; the two wiring terminals are respectively a slot end and a plug end; one end of the two protective sheets 2 is respectively locked on the bus duct body 1 and the two protective sheets 2 are respectively located on both sides of the slot end; at the slot end, the roots of the two outer wiring parts are both outwardly bent parts and the notch 501 of the insulating sleeve 5 faces On the inside, the insulating surfaces of the insulating sleeves 5 of the two outer wiring parts are both in contact with the inner side surfaces of the corresponding protective sheets 2, the roots of the two inner wiring parts are both inner bends bent inwardly and the notches 501 of the insulating sleeves 5 face outwardly, the two inner wiring parts are arranged close together and the insulating surfaces of the insulating sleeves 5 are in contact with each other; at the plug end, the roots of the two outer wiring parts are both inner bends bent inwardly and the notches 501 of the insulating sleeves 5 face outwardly, the roots of the two inner wiring parts are both outer bends bent outwardly and the notches 501 of the insulating sleeves 5 face inwardly, the outer wiring parts are arranged close together with the adjacent inner wiring parts and the insulating surfaces of the insulating sleeves 5 are in contact with each other; the locking mechanism 3 is arranged at the end of the slot.

[0023] Firstly, the connection terminals of the bus duct are set as slot terminals and plug terminals and a locking mechanism 3 is provided. When two bus ducts are connected, it is sufficient to insert the plug terminal of one of them into the slot terminal of the other and lock it through the locking mechanism 3. No bus connector is required, and quick connection and locking can be achieved. The connection area is not limited by the bus connector and can be determined by the area of the connection part. This greatly expands the connection area and avoids high temperature overheating. Secondly, at the slot end, the protective sheet 2 defines the overall width of the slot. On this basis, each connection part adopts a bending design, and not only a plug-in gap is formed between the outer connection part and the adjacent inner connection part, but also the plug-in gap is made larger due to the pre-bending design. It is easy to expand outward during the insertion process, and has a certain rebound after insertion to hold the plug tightly, forming a bell mouth at the root of the plug-in gap, which can allow the end of the plug to squeeze into a smaller gap to tighten the plug; thirdly, since the insulating sleeve 5 of the distribution equipment generally adopts epoxy resin, which has high hardness and small elastic deformation, the two inner wiring parts close together at the slot end and the wiring parts close together at the plug end are allowed to be compressed to a certain extent toward the middle when locking, and after locking, an outward thrust is generated to hold the wiring part of the plug end firmly, so that even if the locking mechanism 3 is loosened, the plug end can be firmly in close contact with the slot end and will not be easily displaced.

[0024] Of course, when encountering plug-in connection with other types of busbars, the wiring part at the plug end of other busbars can be bent, and then the insulating sleeve 5 is put on, so that the plug end of this busbar can be smoothly plugged in.

[0025] The insulating sleeve 5 is provided with a concave slot with an opening facing one side. The opening of the concave slot forms a notch 501. The wiring part is inserted into the concave slot of the corresponding insulating sleeve 5 and is covered by the concave slot, and the side surface of the wiring part protrudes from the notch 501 of the insulating sleeve 5.

[0026] At the slot end, the inner side end parts of the insulating sleeves 5 of the two outer wiring parts are provided with first inclined surfaces 502 that incline outwards, and the outer side end parts of the insulating sleeves 5 of the two inner wiring parts are provided with second inclined surfaces 503 that incline inwards; at the plug end, the outer side end parts of the insulating sleeves 5 of the two outer wiring parts are provided with third inclined surfaces 504 that incline inwards, and the inner side end parts of the insulating sleeves 5 of the two inner wiring parts are provided with fourth inclined surfaces 505 that incline outwards. The end parts of the insulating sleeves 5 of each wiring part at the slot end can form a flared opening by setting the inclined surfaces; the end parts of the insulating sleeves 5 of each wiring part at the plug end can form a pointed end by setting the inclined surfaces, so that when the plug end is inserted into the slot end, it can be inserted more easily; at the same time, when the connection is completed, the end parts of each insulating sleeve 5 can extend into the flared opening formed by the corresponding inner bent part and outer bent part.

[0027] Two deformation grooves 506 are opened on the side surface of the insulating sleeve 5 on the side with the notch 501. The two deformation grooves 506 are respectively located on the upper and lower sides of the concave slot, and the deformation grooves 506 are arranged along the length direction of the concave slot. By arranging the two deformation grooves 506, even if deformation occurs when the wiring part is covered by the insulating sleeve 5, the deformation grooves 506 can also provide a certain deformation space to prevent the insulating sleeve 5 from deforming; at the same time, during daily power-on, the deformation grooves 506 can also play a certain heat dissipation role.

[0028] The insulating sleeve 5 is also provided with a notch 507 communicating with the end of the concave slot. At the slot end, the notch 507 is located at the front end of the insulating sleeve 5, and at the plug end, the notch 507 is located at the rear end of the insulating sleeve 5. The notch 507 can be used as a finger position for fingers to reach when installing and disassembling the wiring part. After installation, it can also play the role of assisting heat dissipation and providing deformation space. In the above front-back direction, the position of the slot end is the front, and the position of the plug end is the rear.

[0029] The locking mechanism 3 includes two connecting bolts 301 and two connecting nuts 302. Two correspondingly-positioned connecting holes 6 are respectively formed in the protection piece 2, the wiring part, and the insulating sleeve 5. An insulating ring 508 extending towards the notch 501 is provided at the edge of the connecting hole 6 on the insulating sleeve 5. The insulating ring 508 extends into the connecting hole 6 of the corresponding wiring part. The number of the connecting bolts 301, the connecting nuts 302, and the connecting holes 6 is the same and they correspond one by one. The connecting bolts 301 sequentially pass through each connecting hole 6 and are threadedly connected to the connecting nuts 302. When two busbars are joined, the connecting bolts 301 can pass through each connecting hole 6 from the outside to the inside in sequence from one side of the protection piece 2, and then be locked with the connecting nuts 302 on the outside of the protection piece 2 on the other side to prevent disengagement. The insulating ring 508 is provided to prevent the rod part of the connecting nut 302 from contacting the wiring part and avoid the connecting nuts 302 connecting the wiring parts in series.

[0030] An insulating sleeve 3011 is sleeved on the rod part of the connecting bolt 301. The insulating sleeve 3011 is provided to further prevent the rod part of the connecting bolt 301 from contacting the wiring part.

[0031] The roots of the two protection pieces 2 are both first pre-bent parts bent inwards, and the front ends of the protection pieces 2 are second pre-bent parts bent outwards. The inner side surface at the middle position of the protection piece 2 is in contact with the insulating surface of the insulating sleeve 5 of the corresponding outer wiring part. With the protection piece 2 configured in this structure, the front ends of the two protection pieces 2 can form a horn-shaped inlet, making it easier for the plug end of another busbar to be inserted from the front end of the protection piece 2 during insertion. Moreover, through pre-bending at the roots of the protection pieces 2, the corresponding outer wiring parts can be compressed towards the middle, enabling the outer wiring parts at the slot end to be in close contact with the corresponding outer wiring parts at the plug end after the busbars are connected.

Claims

1. A busbar trunking with quick connection and locking, comprising a busbar trunking body, in which four conductive bars are arranged side by side, and the wiring parts at both ends of the four conductive bars are respectively exposed outside both ends of the busbar trunking body to form two wiring terminals, and it is characterized in that: It further includes two protective sheets and a locking mechanism. Insulating sleeves are sleeved on each of the wiring parts, and a notch for exposing the wiring part is provided on one side surface of the insulating sleeve; the two wiring ends are a socket end and a plug end respectively; one ends of the two protective sheets are respectively locked on the busway main body and the two protective sheets are respectively located on both sides of the socket end; at the socket end, the roots of the two outer wiring parts are both outward-bent outer bending parts and the notches of their insulating sleeves face inward, the insulating surfaces of the insulating sleeves of the two outer wiring parts are respectively attached to the inner side surfaces of the corresponding protective sheets, the roots of the two inner wiring parts are both inward-bent inner bending parts and the notches of their insulating sleeves face outward, the two inner wiring parts are arranged side by side and the insulating surfaces of their insulating sleeves are attached to each other; at the plug end, the roots of the two outer wiring parts are both inward-bent inner bending parts and the notches of their insulating sleeves face outward, the roots of the two inner wiring parts are both outward-bent outer bending parts and the notches of their insulating sleeves face inward, the outer wiring part and the adjacent inner wiring part are arranged side by side and the insulating surfaces of their insulating sleeves are attached to each other; the locking mechanism is arranged at the socket end.

2. The busbar trunking with quick connection and locking as claimed in claim 1, wherein: The insulating sleeve is provided with a concave slot with an opening facing one side, and the opening of the concave slot constitutes the notch. The wiring part is inserted into the concave slot of the corresponding insulating sleeve and is covered by the concave slot, and the side surface of the wiring part protrudes from the notch of the insulating sleeve.

3. The busbar trunking with quick connection and locking according to claim 2, characterized in that: At the socket end, the end parts of the inner side surfaces of the insulating sleeves of the two outer wiring parts are provided with first inclined surfaces inclined outward, and the end parts of the outer side surfaces of the insulating sleeves of the two inner wiring parts are provided with second inclined surfaces inclined inward; at the plug end, the end parts of the outer side surfaces of the insulating sleeves of the two outer wiring parts are provided with third inclined surfaces inclined inward, and the end parts of the inner side surfaces of the insulating sleeves of the two inner wiring parts are provided with fourth inclined surfaces inclined outward.

4. The busbar trunking with quick connection and locking according to claim 2, characterized in that: Two deformation slots are opened on the side surface of the insulating sleeve where the notch is opened, the two deformation slots are respectively located on the upper and lower sides of the concave slot, and the deformation slots are arranged along the length direction of the concave slot.

5. The busbar trunking for quick connection and locking according to claim 2, characterized in that: The insulating sleeve is further provided with a notch communicating with the end of the concave slot. At the socket end, the notch is located at the front end of the insulating sleeve, and at the plug end, the notch is located at the rear end of the insulating sleeve.

6. The busbar trunking with quick connection and locking as claimed in claim 1, wherein: The locking mechanism includes at least one connecting bolt and at least one connecting nut. At least one connection hole corresponding in position is respectively opened on the protective sheet, the wiring part and the insulating sleeve. An insulating ring extending towards the notch is provided on the edge of the connection hole on the insulating sleeve, and the insulating ring extends into the connection hole of the corresponding wiring part. The number of the connecting bolts, the connecting nuts and the connection holes is the same and they correspond one by one. The connecting bolts sequentially pass through each connection hole and are threadedly connected with the connecting nuts.

7. The busbar trunking with quick connection and locking as claimed in claim 6, wherein: An insulating sleeve is sleeved on the rod part of the connecting bolt.

8. The busbar trunking with quick connection and locking according to claim 6, characterized in that: The number of the connecting bolts, the connecting nuts and the connection holes is two.

9. The busbar trunking with quick connection and locking according to claim 1, characterized in that: The roots of the two protective sheets are both first pre-bent parts bent inward, and the front end parts of the protective sheets are second pre-bent parts bent outward. The inner side surface at the middle position of the protective sheet is attached to the insulating surface of the insulating sleeve of the corresponding outer wiring part.

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