Bus duct capable of being quickly connected and locked

Abstract

The invention discloses a quickly connected and locked bus duct, which comprises a bus duct main body, a locking mechanism and two protection sheets, four conducting bars are arranged in the bus duct main body side by side, wiring parts at the two ends of the four conducting bars are respectively exposed out of the two ends of the bus duct main body to form two wiring ends, each wiring part is sleeved with an insulating sleeve, and the insulating sleeves are arranged in the bus duct main body. A notch for exposing the wiring part is formed in one side surface of the insulating sleeve; the two wiring ends are respectively a slot end and a plug end; at the slot end, the insulating sleeves of the two outer side wiring parts are attached to the inner side face of the protection sheet, the two inner side wiring parts are arranged in a closed mode, and the insulating sleeves of the two inner side wiring parts are attached to each other; at the plug end, the outer side wiring part and the adjacent inner side wiring part are arranged together, and the insulating surfaces of the insulating sleeves are attached to each other; and the locking mechanism is arranged at the slot end. According to the bus duct, the corresponding conducting bars can be quickly connected and locked when the bus duct is connected, the connection effect is good, and the safety in the electric energy transmission process can be effectively improved.

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 electricity consumption in 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. It 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 the 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 lead to explosions. 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 trunkings are 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 solution is adopted: A busbar trunking with quick connection and locking, comprising a busbar trunking body in which four conductive bars are arranged side by side. 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. It is characterized in that: it further includes two protection sheets and a locking mechanism. An insulating sleeve is sleeved on each of the wiring parts, and a notch for the wiring part to expose is provided on one side of the insulating sleeve; the two wiring terminals are respectively a socket end and a plug end; one ends of the two protection sheets are respectively locked on the busbar trunking body and the two protection sheets are respectively on both sides of the socket end; at the socket end, the roots of the two outer wiring parts are both outwardly bent outer bending parts and the notches of their insulating sleeves face inwards, the insulating surfaces of the insulating sleeves of the two outer wiring parts are respectively in contact with the inner surfaces of the corresponding protection sheets, the roots of the two inner wiring parts are both inwardly bent inner bending parts and the notches of their insulating sleeves face outwards, the two inner wiring parts are arranged side by side 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 inwardly bent inner bending parts and the notches of their insulating sleeves face outwards, the roots of the two inner wiring parts are both outwardly bent outer bending parts and the notches of their insulating sleeves face inwards, 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.

[0006] First, the wiring terminals of the busbar trunking are set as a socket end and a plug end and a locking mechanism is provided. When connecting two busbar trunkings, as long as the plug end of one is inserted into the socket end of the other and locked by the locking mechanism, there is no need for a busbar connector, realizing quick connection and locking. The connection area is not limited by the busbar connector and can be determined by the area of the wiring part, thus greatly expanding the connection area and avoiding high temperature overheating. Second, at the socket end, the protection sheet limits the overall width of the socket. On this basis, each wiring part adopts a bending design. Not only an insertion gap is formed between the outer wiring part and the adjacent inner wiring part, but also due to the pre-bending design, the insertion gap is easy to expand outwards during the insertion process, and has a certain resilience after insertion to hold the plug tightly. A flared opening is formed at the root of the insertion gap, allowing the end of the plug to squeeze into a smaller gap to clamp the plug tightly. Third, since the insulating sleeve of the power distribution equipment generally uses epoxy resin, which has a relatively high hardness and a small elastic deformation, the two inner wiring parts arranged side by side at the socket end and the wiring parts arranged side by side at the plug end both allow a certain degree of compression towards the middle during locking, and generate an outward thrust after locking, firmly clamping the wiring parts at the plug end. Thus, even if the locking mechanism becomes loose, the plug end can still be firmly in close contact and cooperation with the socket end and will not be easily displaced.

[0007] Of course, when encountering plugging with other types of busbar trunkings, the wiring parts at the plug end of the other busbar trunking can be bent and then an insulating sleeve is put on, so that the plug end of this busbar trunking can be smoothly plugged.

[0008] When one of the outer connection parts is used as the neutral wire, the insulating sleeve on the outer connection part can be provided with notches on both sides, so that the other side of the outer connection part can contact the corresponding protection piece.

[0009] In a preferred solution, the insulating sleeve is provided with a concave inner slot with an opening facing one side, and the opening of the concave inner slot forms the notch. The connection part is inserted into the concave inner slot of the corresponding insulating sleeve and is covered by the concave inner slot, and the side surface of the connection part protrudes from the notch of the insulating sleeve.

[0010] In a further preferred solution, at the end of the slot, the inner side ends of the insulating sleeves of the two outer connection parts are provided with first inclined surfaces that incline outwards, and the outer side ends of the insulating sleeves of the two inner connection parts are provided with second inclined surfaces that incline inwards; at the plug end, the outer side ends of the insulating sleeves of the two outer connection parts are provided with third inclined surfaces that incline inwards, and the inner side ends of the insulating sleeves of the two inner connection parts are provided with fourth inclined surfaces that incline outwards. The end parts of the insulating sleeves of the respective connection parts at the slot end can form a flared opening by setting the inclined surfaces; the end parts of the insulating sleeves of the respective connection parts 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 the respective insulating sleeves can extend into the flared opening formed by the corresponding inner bent part and outer bent part.

[0011] In a further preferred solution, two deformation grooves are provided on the side surface of the insulating sleeve where the notch is opened. The two deformation grooves are respectively located on the upper and lower sides of the concave inner slot, and the deformation grooves are arranged along the length direction of the concave inner slot. By providing the two deformation grooves, even if deformation occurs when the connection 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.

[0012] In a further preferred solution, the insulating sleeve is also provided with a notch communicating with the end of the concave inner 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 fingers to extend into when the connection 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-back direction, the position of the slot end is the front, and the position of the plug end is the rear.

[0013] 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 one by one. The connecting bolts sequentially pass through each connecting hole and are threadedly connected with the connecting nuts. When two busbars are joined, the connecting bolts can pass through each connecting hole from the outside to the inside of one side protective sheet in sequence, and then be locked with the connecting nuts on the outside of the other side protective sheet to prevent disengagement. The insulating ring is provided to prevent the rod part of the connecting nut from contacting the wiring part and avoid the connecting nuts connecting the wiring parts in series.

[0014] 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.

[0015] In a further preferred embodiment, the number of the connecting bolts, the connecting nuts and the connecting holes is two.

[0016] 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. With the protective sheet structured in this way, the front ends of the two protective sheets can form a trumpet-shaped inlet, making it easier for the plug end of another busbar to be inserted from the front end of the protective sheet during insertion. And through the pre-bending of the roots of the protective sheets, the corresponding outer wiring parts can be compressed towards the middle, enabling the outer wiring parts at the socket end to be in close contact with the corresponding outer wiring parts at the plug end after the busbars are connected.

[0017] The beneficial effects of the present invention are as follows: This kind of busbar can achieve the quick self-locking connection of the corresponding conductive bars during the connection of the busbars, with good connection effect, no contact failure, and can effectively improve the safety during the power transmission process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the busbar in the embodiment of the present invention; Figure 2 is an enlarged view of the plug end in the embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0019] The present invention will be further described below in conjunction with the drawings and specific embodiments: Such 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.

[0020] 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.

[0021] 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.

[0022] The insulating sleeve 5 is provided with an inward concave slot with an opening facing one side. The opening of the inward concave slot forms a notch 501. The wiring part is inserted into the inward concave slot of the corresponding insulating sleeve 5 and is covered by the inward concave slot, and the side surface of the wiring part protrudes from the notch 501 of the insulating sleeve 5.

[0023] 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 inclined outward, and the outer side end parts of the insulating sleeves 5 of the two inner wiring parts are provided with second inclined surfaces 503 inclined inward; 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 inclined inward, and the inner side end parts of the insulating sleeves 5 of the two inner wiring parts are provided with fourth inclined surfaces 505 inclined outward. The end parts of the insulating sleeves 5 of each wiring part at the slot end can form a flared opening by arranging 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 arranging 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 end parts of each insulating sleeve 5 can extend into the flared opening formed by the corresponding inner bent part and outer bent part.

[0024] Two deformation grooves 506 are formed on the side surface of the insulating sleeve 5 on the side where the notch 501 is opened. The two deformation grooves 506 are respectively located on the upper and lower sides of the inward concave slot, and the deformation grooves 506 are arranged along the length direction of the inward 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 provide a certain deformation space to avoid deformation of the insulating sleeve 5; at the same time, during daily power-on, the deformation grooves 506 can also play a certain heat dissipation role.

[0025] The insulating sleeve 5 is also provided with a notch 507 communicating with the end of the inward 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 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-back direction, the position of the slot end is the front, and the position of the plug end is the rear.

[0026] The locking mechanism 3 includes two connecting bolts 301 and two connecting nuts 302. Two corresponding connecting holes 6 are respectively formed on the protective sheet 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 with the connecting nuts 302. When two bus ducts are joined, the connecting bolts 301 can pass through each connecting hole 6 from the outside to the inside of one side protective sheet 2 in sequence, and then be locked with the connecting nuts 302 on the outside of the other side protective sheet 2 to prevent detachment. 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 from connecting the wiring parts in series.

[0027] 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.

[0028] The roots of the two protective sheets 2 are both first pre-bent parts bent inward, and the front ends of the protective sheets 2 are second pre-bent parts bent outward. The inner side surface at the middle position of the protective sheet 2 is attached to the insulating surface of the insulating sleeve 5 of the corresponding outer wiring part. With the protective sheet 2 arranged in this structure, the front ends of the two protective sheets 2 can form a trumpet-shaped inlet, and when plugging in, the plug end of another bus duct is more likely to be inserted from the front end of the protective sheet 2. And through pre-bending at the roots of the protective sheets 2, the corresponding outer wiring parts can be compressed towards the middle, and after the bus ducts 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.

Claims

1. A busway with quick connection and locking, comprising a busway main 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 busway main 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 main body of the busway, 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 outwardly bent outer bent parts and the notches of their insulating sleeves face inwards, 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 inwardly bent inner bent parts and the notches of their insulating sleeves face outwards, 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 inwardly bent inner bent parts and the notches of their insulating sleeves face outwards, the roots of the two inner wiring parts are both outwardly bent outer bent parts and the notches of their insulating sleeves face inwards, 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 according to claim 1, characterized in that: The insulating sleeve is provided with an inwardly concave socket with an opening facing one side, and the opening of the inwardly concave socket forms the notch. The wiring part is inserted into the inwardly concave socket of the corresponding insulating sleeve and is covered by the inwardly concave socket, 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 as claimed in claim 2, wherein: 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 outwards, 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 inwards; 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 inwards, 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 outwards.

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

5. The busbar trunking with 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 inwardly concave socket. 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 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 on 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 one by one. The connecting bolts sequentially pass through each connecting 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 connecting holes is two.

9. The busbar trunking with quick connection and locking according to claim 1, wherein: The roots of the two protective sheets are both first pre-bent parts bent inwards, and the front end parts 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.

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