A bolt-up connector without a cap

Abstract

The application discloses a bolt-tightening connector without a cover, which comprises a shell, an insulator inserted into one side of the shell, a conductor arranged in the insulator, and an end of the insulator extending out of the shell; and a wire inserted into the other side of the shell and connected with the corresponding conductor. Compared with the prior art, the connector plug of the application is inserted into a device, and is fixed by being in contact with a copper bar in the device without a socket structure, so that the connector has the ability of resisting higher vibration level, the use of connector parts is reduced, and the use cost of the whole vehicle connector is greatly reduced.

Description

Technical Field

[0001] This invention belongs to the field of connector technology, specifically relating to a bolt-tightening connector without a top cover. Background Technology

[0002] With the development of new energy vehicles, higher requirements have been placed on the cost and shock resistance of automotive high-voltage connectors. Based on current technology and product status, connectors used in high-voltage equipment such as multi-in-one systems or battery packs primarily employ a head-and-base mating design with a handle locking mechanism. This connector structure has low shock resistance and high cost. Existing connectors are mainly based on a head-and-base mating design, with a handle locking mechanism after mating. This design results in poor resistance to high-level vibrations and high cost. Figure 1 Existing bendable connectors have a top cover structure, with the top cover fixed to the bendable connector by locking screws. This structure uses a large number of parts, increasing the overall cost of the connector. See [link / details]. Figure 2 . Summary of the Invention

[0003] To address the technical problems of high cost and poor shock resistance of the aforementioned connectors, this invention provides a bolt-tightening connector without a top cover.

[0004] The objective of this invention is achieved through the following technical solution. According to this invention, a bolt-tightening connector without a top cover includes a housing, an insulator inserted into one side of the housing, a conductor disposed within the insulator, and the end of the insulator extending out of the housing; a wire is inserted into the other side of the housing, and the wire is connected to a corresponding conductor.

[0005] Furthermore, an insulating cover is installed at the end of the insulator located inside the housing, and after the conductor is installed inside the insulator, the insulating cover is then placed on top.

[0006] Furthermore, the conductor includes a conductive copper busbar, one end of which is provided with a through hole, and a screw hole structure is provided in the through hole. The screw hole structure is inserted into the blind hole of the insulating cover. The end of the wire located inside the outer shell is provided with a terminal. The through hole on the terminal is aligned with the through hole of the conductive copper busbar and the through hole on the insulator. Screws are sequentially inserted through the through hole on the insulator, the through hole on the terminal, and the through hole of the conductive copper busbar, and the screws are screwed into the screw hole structure to firmly connect the terminal to the conductive copper busbar.

[0007] Furthermore, contacts are provided on both sides of the other end of the conductive copper busbar, and the contacts are located inside the insulator.

[0008] Furthermore, the other end of the conductive copper busbar extends out of the insulator and is fitted with a nut structure.

[0009] Furthermore, the installation and insertion direction of the insulator is perpendicular to the installation and insertion direction of the conductor, and the conductor is bent vertically.

[0010] Furthermore, the wire is sequentially fitted with a shielding ring, a gasket, a wire sealing ring, and a wire fixing plate from the wire end inside the housing, and a tail cover for fixing it to the housing is fitted on the wire.

[0011] Furthermore, the wire fixing plate is an annular body with a key on its outer side wall. Multiple cantilever arms are distributed circumferentially at its end facing the outer side of the outer shell. The cantilever arms are inclined towards the center of the wire. A keyway is provided on the outer shell, and the key is nested in the keyway. The front end of the tail cover is provided with a buckle structure that cooperates with the buckle structure on the outer wall of the outer shell. The rear end of the tail cover is a cone with a gradually narrowing diameter that is pressed against the cantilever arms, which press the wire tightly.

[0012] Furthermore, the insulator is provided with two sets of snap-fit ​​structures, one set of which engages with the snap-fit ​​structure on the insulating cover; the other set of which engages with the snap-fit ​​structure on the outer shell.

[0013] Furthermore, a sealing ring is provided on the outer casing to surround the insulator.

[0014] Compared with the prior art, the advantages of the present invention are: the connector plug of the present invention is inserted into the device without a socket structure, and is fixed in contact with the copper busbar inside the device, which has the ability to resist higher vibration levels, while reducing the use of connector parts and greatly reducing the overall vehicle connector usage cost.

[0015] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a head-and-base mating connector in the prior art;

[0017] Figure 2 This is a schematic diagram of a bendable connector with a top cover in the prior art;

[0018] Figure 3 This is a perspective view of Embodiment 1 of the present invention;

[0019] Figure 4 for Figure 3 A sectional view;

[0020] Figure 5 for Figure 3 A schematic diagram of the decomposition process;

[0021] Figure 6 for Figure 3 Installation diagram;

[0022] Figure 7This is a perspective view of Embodiment 2 of the present invention;

[0023] Figure 8 for Figure 7 A sectional view;

[0024] Figure 9 for Figure 7 A schematic diagram of the decomposition process;

[0025] Figure 10 for Figure 7 Installation diagram.

[0026] [Attached image labels]

[0027] 1-Plug, 2-Socket, 3-Bent connector, 4-Top cover, 5-Locking screw, 6-Housing, 601-Mounting port, 602-Wire sleeve, 603-Step, 604-Keyway, 7-Wire, 8-Tail cover, 9-Wire fixing plate, 10-Wire sealing ring, 11-Gasket, 12-Shielding ring, 13-Terminal, 14-Sealing ring, 15-Insulating top cover, 1501-Blind hole, 16-Conductive copper busbar I, 1601-Screw hole structure, 17-Contact, 18-Insulator, 1801-Contact sleeve, 1802-Screw sleeve, 1803-Copper busbar sleeve, 19-Screw, 20-Equipment, 21-Equipment internal copper busbar I, 22-Conductive copper busbar II, 23-Pressure nut, 24-Equipment internal copper busbar II, 25-Copper busbar locking screw, 26-Mounting screw. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Embodiment 1 of the present invention, as follows Figures 3 to 6 As shown, the device includes a housing 6. A mounting port 601 is provided on one side of the housing 6 for mounting a connector component. A wire sleeve 602 is provided on the other side of the housing 6 for mounting wire components. The centerline of the wire sleeve 602 is perpendicular to the centerline of the mounting port 601. In this embodiment, two wire sleeves 602 are provided for mounting two sets of wire components.

[0030] The wire assembly includes a wire 7, a tail cover 8, a wire fixing plate 9, a wire sealing ring 10, a gasket 11, a shielding ring 12, and a terminal 13. Each wire sleeve 602 corresponds to one set of wire assemblies. The end of the wire 7 is provided with a terminal 13, and the shielding ring 12, gasket 11, wire sealing ring 10, wire fixing plate 9, and tail cover 8 are sequentially fitted on the wire 7.

[0031] The end of the conductor 7 is exposed, and a terminal 13 is fixedly installed on it. The front end of the exposed conductor 7 and the terminal 13 are inserted into the shielding structure of the housing 6. A shielding ring 12 is sleeved on the outer side of the rear end of the exposed conductor 7 and on the outer side of the insulation layer near the exposed conductor position of the conductor 7. The front end of the shielding ring 12 is attached to the conductor 7, and the rear end is a flared mouth that opens outward. A groove is opened on the side wall of the flared mouth and the end of the flared mouth abuts against the inner wall of the conductor sleeve 602, which plays a positioning role for the conductor 7.

[0032] The inner wall of the wire sleeve 602 is provided with a step 603. One side of the gasket 11 abuts against the step and is close to the rear end of the shielding ring 12, and the other side abuts against the wire sealing ring 10. The guide sealing ring 10 is pressed against the outer wall of the wire 7 and the inner wall of the wire sleeve 602 under its own elastic force.

[0033] The conductor fixing plate 9 is annular, with a key 901 on its outer wall and multiple cantilever arms 902 distributed circumferentially at its rear end, the cantilever arms 902 being inclined towards the center of the conductor. A keyway 604 is provided at the end of the conductor sleeve 602, and the key 901 is nested within the keyway 604. A snap-fit ​​structure is provided at the front end of the tail cover 8, which engages with the snap-fit ​​structure on the outer wall of the conductor sleeve 602 to fix the tail cover 8. The rear end of the tail cover 8 is a tapered cone with a gradually narrowing diameter, pressing against the cantilever arms 902 of the conductor fixing plate 9. The cantilever arms 902 press against the conductor 7, thereby fixing the conductor 9.

[0034] The plug-in components include a sealing ring 14, an insulating cover 15, a conductive copper busbar 116, a contact 17, an insulator 18, and a screw 19. The sealing ring 14 is provided around the outer wall of the housing 6 surrounding the mounting port 601. When the connector is installed on the device 20, it is used to seal the mating part between the connector and the device.

[0035] An insulating cover 15 is installed inside the outer casing 6 through the mounting port 601. Two blind holes 1501 are provided at the end of the insulating cover 15 facing the mounting port. The conductive copper busbar I16 is vertically bent, and a through hole is provided at one end. A screw hole structure 1601 is nested in the through hole. The screw hole structure 1601 faces the blind hole 1501 and has a threaded hole. Contact elements 17 are provided on both sides of the other end of the conductive copper busbar I16, and the contact elements 17 on both sides form a socket structure.

[0036] Each blind hole 1501 is provided with a corresponding conductive copper busbar I16. The side of the conductive copper busbar I16 with the screw hole structure 1601 is attached to the end face of the insulating cover 15, and the screw hole structure 1601 on the conductive copper busbar I16 is inserted into the corresponding blind hole 1501. The other side of the end of the conductive copper busbar I16 with the screw hole structure 1601 is attached to the side of the corresponding terminal 13, and the terminal 13 is provided with a through hole, which is aligned with the through hole on the conductive copper busbar I16.

[0037] The rear end of the insulator 18 is fixed to the insulating cover 15 and is disposed inside the housing 6 along with the insulating cover 15. Two contact sleeves 1801 and two screw sleeves 1802 are provided on the insulator 18. The conductive copper busbar I16 fixes the end of the contact 17, and the contact 17 is nested within the corresponding contact sleeve 1801. The hole inside the screw sleeve 1802 is aligned with the through hole on the corresponding terminal 13, and the end of the terminal 13 abuts against the wall between the contact sleeve 1801 and the screw sleeve 1802 of the insulator 18. The screw 19 passes sequentially through the screw sleeve 1802 and the through hole on the terminal 13, and is screwed into the threaded structure 1601 on the conductive copper busbar I16, thus firmly connecting the terminal 13 to the conductive copper busbar I16.

[0038] Two sets of snap-fit ​​structures are provided on the insulator 18. One set of snap-fit ​​structures cooperates with the snap-fit ​​structure of the insulating cover 15 to fix the insulator 18 and the insulating cover 15. The other set of snap-fit ​​structures cooperates with the snap-fit ​​structure on the outer shell 6 to fix the insulator 18 and the outer shell 6, thereby fixing the insulator 18 and the insulating cover 15 inside the outer shell 6.

[0039] The assembly process of the connector of this invention is as follows: The conductive copper busbar I16 is fixed to the contact 17. The conductive copper busbar I16 is installed in the contact sleeve 1801 of the insulator 18. Then, the insulating cover 15 is fastened on the insulator 18, so that the through hole on the conductive copper busbar I16 is aligned with the blind hole 1501 on the insulating cover 15. The insulator 18, the conductive copper busbar I16, and the insulating cover 15 are installed as a whole into the outer shell 6. The sealing ring 14 is nested in the groove on the outer shell 6. Then, the terminal 13 of the pre-fitted wire component is inserted into the conductor. When the terminal 13 is pressed against the inner wall of the insulator 17, the through hole on the terminal 13 is aligned with the through hole of the conductive copper busbar I16 and the screw sleeve 1802 on the insulator 18. Then, the screw 19 is passed through the screw sleeve 1802, the through hole on the terminal 13, and the through hole on the conductive copper busbar I16, and then screwed into the screw hole structure 1601 to press the terminal 13 and the conductive copper busbar I16 to make them firmly connected. Then, the various components in the wire assembly are installed in place, and the tail cover 8 is fixed on the outer shell 6.

[0040] When connecting the connector of Embodiment 1 of the present invention to the device 20, the contact sleeve 1801 of the connector is inserted into the through hole on the device 20. The device 20 is provided with a device copper busbar I21. The device copper busbar I21 is inserted into the contact 17 inside the contact sleeve 1801. Then, the mounting screw 26 is screwed into the threaded hole on the device 20 through the hole on the housing 6 to fix the connector on the device 20.

[0041] Embodiment 2 of the present invention, as follows Figures 7 to 10 As shown, the difference from Embodiment 1 is that the plug-in terminal component in Embodiment 2 does not have the contact 17 as in Embodiment 1, and the conductive copper bus I16 in Embodiment 1 is replaced with a conductive copper bus II22. The conductive copper bus II22 is bent vertically, with one end having the same through hole as the conductive copper bus I16, and the other end having a through hole for installing the press-fit nut 23. The insulator 18 is provided with a copper bus sleeve 1803 for nesting the conductive copper bus II22, and the end of the conductive copper bus II22 for installing the press-fit nut 23 extends out of the corresponding copper bus sleeve 1803.

[0042] Assembly process of Embodiment 2: The rivet nut 23 is pre-installed and fixed on the conductive copper busbar II 22, and inserted into the corresponding copper busbar sleeve 1803. The remaining assembly process is the same as in Embodiment 1. When the connector of Embodiment 2 is inserted into the device 20, the connector's copper busbar sleeve 1803 is inserted into the through hole on the device. The device 20 is equipped with a device copper busbar II 24. After the rivet nut 23 is aligned with the through hole on the device copper busbar II 24, the copper busbar locking screw 25 is passed through the through hole on the device copper busbar II 24 and screwed into the rivet nut 23 to fix the conductive copper busbar II 22 of the connector to the device copper busbar II 24. Then, the connector is installed on the device 20 through the housing 6 using mounting screws 26.

[0043] In other embodiments, the connector of the present invention serves as a plug, and the conductive copper busbar and contacts can be replaced with other conductive materials such as sockets or pins and installed inside an insulator, with corresponding pins or sockets provided inside the device. The terminals on the wires are crimped copper tube terminals or ultrasonically welded copper busbars. The crimp nut 23 on the conductive copper busbar II can be replaced with other types of nut structures, for example, a hexagonal nut can be welded to the conductive copper busbar II.

[0044] In Embodiment 1 of this invention, the connector can function as a plug connector, interlocking with pins within the device. In this embodiment, the contacts in the plug serve as sockets, and the copper busbars inside the device serve as pins. The contacts of the connector interlock with the copper busbars inside the device. In Embodiment 2, the connector can function as a plug connector, interlocking with sockets or copper busbars within the device. In this embodiment, copper busbars are provided in the plug, and copper busbars are used inside the device. The copper busbars on the connector are tightened to the copper busbars inside the device using bolts. This invention eliminates the need for a connector socket, saving on connector costs for the entire vehicle. The connector housing of this invention is fixed to the device by bolts. The connector adopts a coverless, integral housing structure, which is simple, compact, has few parts, and is low in cost.

[0045] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bolt-tightening connector without a top cover, comprising a housing (6), characterized in that: An insulator (18) is inserted into one side of the outer casing (6). A conductor is installed inside the insulator (18). The end of the insulator (18) extends out of the outer casing (6). An insulating cover (15) is installed on the end of the insulator (18) inside the outer casing (6). After the conductor is installed inside the insulator (18), the insulating cover (15) is put on. Then, the insulator (18), the conductor, and the insulating cover (15) are installed into the outer casing (6). A wire (7) is inserted into the other side of the outer casing (6). The wire (7) is connected to the corresponding conductor. The conductor is electrically connected to the equipment copper busbar inside the equipment. The device includes a conductive copper busbar, one end of which is provided with a through hole and a screw hole structure (1601) is provided in the through hole. The screw hole structure (1601) is inserted into the blind hole (1501) of the insulating cover (15). The end of the conductor (7) located inside the outer shell (6) is provided with a terminal (13). The through hole on the terminal (13) is aligned with the through hole of the conductive copper busbar and the through hole on the insulator. Screws (19) are sequentially inserted through the through hole on the insulator, the through hole on the terminal (13), and the through hole of the conductive copper busbar, and the screws (19) are screwed into the screw hole structure (1601) so that the terminal (13) is firmly connected to the conductive copper busbar.

2. The bolt-tightening connector without a top cover according to claim 1, characterized in that: Contact elements (17) are provided on both sides of the other end of the conductive copper busbar, and the contact elements (17) are located inside the insulator (18).

3. The bolt-tightening connector without a top cover according to claim 1, characterized in that: The other end of the conductive copper busbar extends out of the insulator (18) and is fitted with a nut structure (23).

4. A bolt-tightening connector without a top cover according to claim 1, characterized in that: The installation and insertion direction of the insulator (18) is perpendicular to the installation and insertion direction of the conductor (7), and the conductor is bent vertically.

5. A bolt-tightening connector without a top cover according to claim 1, characterized in that: The wire (7) is fitted with a shielding ring (12), a gasket (11), a wire sealing ring (10), and a wire fixing plate (9) in sequence from the end of the wire inside the shell. A tail cover (8) is fitted on the wire (7) for fixing it to the shell (6).

6. A bolt-tightening connector without a top cover according to claim 5, characterized in that: The wire fixing plate (9) is an annular body with a key (901) on its outer side wall. Multiple cantilever (902) are distributed circumferentially at its end facing the outer side of the outer shell (6). The cantilever (902) is inclined toward the center of the wire (7). A keyway (604) is provided on the outer shell (6), and the key (901) is nested in the keyway (604). The front end of the tail cover (8) is provided with a buckle structure, which cooperates with the buckle structure on the outer wall of the outer shell (6). The rear end of the tail cover (8) is a cone with a gradually narrowing diameter and is pressed against the cantilever (902). The cantilever (902) presses the wire (7).

7. A bolt-tightening connector without a top cover according to claim 1, characterized in that: Two sets of snap-fit ​​structures are provided on the insulator (18), one set of snap-fit ​​structures cooperates with the snap-fit ​​structure on the insulating cover (15); the other set of snap-fit ​​structures cooperates with the snap-fit ​​structure on the outer shell (6).

8. A bolt-tightening connector without a top cover according to claim 1, characterized in that: A sealing ring (14) is provided on the outer shell (6) surrounding the insulator (18).

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