Connector and bus bar

Abstract

The utility model provides a connector and a bus bar used for the connector. A connector for fitting with a mating connector to achieve electrical conduction includes: a cylindrical connector housing having: a first through-hole penetrating through a wall body of the connector housing in a radial direction perpendicular to a fitting direction of the fitting, and a second through-hole penetrating through a wall body of the connector housing in a radial direction perpendicular to a fitting direction of the fitting; and a boss portion provided so as to protrude outward from an outer surface of the connector housing around the first through hole, in which a threaded portion is formed on an inner circumferential surface of the boss portion. According to the utility model, efficient water prevention can be realized through a simple structure, diversified requirements of different vehicles can be met, and high universality is realized with low cost.

Description

Technical Field

[0001] The utility model relates to a connector and a bus bar, belonging to the field of electrical equipment. Background Art

[0002] Generally speaking, when one electrical device needs to be connected to another electrical device, it can be achieved by fitting a connector of one electrical device to a mating connector of the other electrical device. For example, a car charging gun and a charging socket are typical examples of a connector and a mating connector.

[0003] In recent years, due to the popularity of new energy vehicles, car charging sockets are an indispensable structure. Compared with refueling fuel vehicles, charging sockets take longer to charge, so it is inevitable that the charging gun fitting part is exposed. Therefore, the fitting part needs to be waterproof and drained in time. Therefore, how to achieve efficient drainage using a simple structure is an urgent problem to be solved.

[0004] In addition, with the increase in charging speed, high voltage and large current, traditional wires can no longer meet the charging development requirements of future electric vehicle DC charging ports, which is also an urgent problem that needs to be solved. Utility Model Content

[0005] In order to solve the above problems, the utility model provides a connector, which can achieve efficient waterproofing with a simple structure and can meet the diverse needs of different vehicles, and achieve high versatility with low finished products. In addition, the utility model also provides a bus bar, which can replace traditional wires, cope with different vehicle body environments, and can accurately wire even narrow and tortuous wiring spaces and adapt to large current power transmission.

[0006] Specifically, the first aspect of the utility model provides a connector, which is used to engage with a mating connector to achieve electrical conduction, including:

[0007] A cylindrical connector housing, the connector housing having: a first through hole, the first through hole penetrating the wall of the connector housing in a radial direction perpendicular to the mating direction of the mating; and a boss portion, the boss portion being arranged to protrude outward from the outer surface of the connector housing around the first through hole,

[0008] Wherein, a threaded portion is formed on the inner peripheral surface of the boss portion.

[0009] According to the connector with the above structure, even if water intrudes into the connector, the intruded water can be discharged from the boss portion to the outside through the first through hole, thereby achieving waterproofness with a simple structure; in addition, since a threaded portion is formed on the inner circumferential surface of the boss portion, the boss portion is used as a connection component in addition to being a drainage channel. In view of the diverse drainage requirements of different vehicles, a drain pipe (which can be a commercially available standard part) can be screwed to the boss portion or the drain pipe jacket can be directly inserted into the boss portion to drain water through the drain pipe. For example, for a vehicle, due to the body environment requirements of different manufacturers, the body is divided into a dry area and a wet area. If the connector as a charging socket is designed in the wet area, there is no need to guide water to other places separately, and it can be directly discharged from the first through hole; but if the charging socket is designed in the dry area, it is necessary to connect an external drain pipe to the first through hole to guide water to the wet area for discharge. Through the structure of the utility model, the cost of developing a mold is reduced, and the quick installation of the drain pipe is achieved. By replacing the external drain pipe, not only the diversity of the installation of the drain pipe can be met, but also the drainage method can be enriched.

[0010] Preferably, in the connector of the first aspect, a cover portion is further included, the cover portion including a peripheral wall portion, the cover portion is assembled to the connector housing so that the peripheral wall portion of the cover portion surrounds the outer peripheral side of the connector housing. The peripheral wall portion of the cover portion is provided with a second through hole penetrating the peripheral wall portion in the radial direction, and the second through hole is communicated with the first through hole.

[0011] According to the connector having the above structure, the boss portion can be covered from the outer periphery by surrounding the peripheral wall portion of the cover portion around the outer peripheral side of the connector housing. Therefore, the connector as a whole is more beautiful, and the boss portion is not exposed to the outside, thereby avoiding the boss portion from accidentally hooking or interfering with other components.

[0012] Preferably, in the connector described above, the inner circumferential surface of the connector shell is further provided with a channel portion, the channel portion is arranged around the first through hole, and in the inner circumferential surface of the connector shell, the channel portion is a recessed portion which is one step lower than an adjacent portion, or the channel portion is an inclined portion which is inclined toward the radial outside as it approaches the first through hole.

[0013] According to the connector having the above structure, by providing the channel portion, water can be further guided toward the first through hole, thereby ensuring smooth discharge of water.

[0014] Preferably, in the connector described above, a terminal accommodating portion is provided inside the connector housing for inserting and accommodating the terminal therein, and the cover portion also includes a bottom wall portion extending vertically at one end of the peripheral wall portion, so that when the cover portion is assembled to the connector housing, the bottom wall portion of the cover portion covers an end portion of the connector housing in the mating direction, and the bottom wall portion of the cover portion is provided with a terminal mounting port, which is connected to the terminal accommodating portion, and the terminal mounting port of the cover portion is formed into a non-circular shape.

[0015] According to the connector having the above structure, when the terminal is installed in the terminal accommodating portion of the connector housing, although the terminal may be, for example, a cylindrical terminal and is thus prone to rotation, such rotation can be suppressed by the non-circular shape of the terminal mounting opening of the cover portion, thereby ensuring the stability of the terminal.

[0016] Preferably, in the connector described above, the terminal accommodating portion is configured in plurality, and the terminal mounting opening of the cover portion is configured in plurality corresponding to the terminal accommodating portion, and the plurality of terminal mounting openings of the cover portion are separated from each other by partition walls, so that the plurality of terminal mounting openings are divided into different spaces from each other.

[0017] According to the connector having the above structure, the terminal installation openings are partitioned by partition walls, so that the conductor installation parts of the positive terminal, negative terminal and grounding terminal, for example, are arranged in the separation area relative to each other, ensuring that the current does not flow in series and improving reliability.

[0018] Preferably, in the connector described above, the cover portion is provided with a bus bar insertion portion, which is protruding outward in a direction perpendicular to the mating direction and has an open end, so that the bus bar can be inserted into the corresponding bus bar insertion portion and enter the corresponding terminal accommodating portion.

[0019] According to the connector having the above structure, the terminal can be connected to the bus bar as a conductor at an angle of about 90 degrees, forming an L-shaped outlet structure, which can meet the large-capacity power supply requirements and enable compact wiring.

[0020] Preferably, the connector described above further comprises: the terminal, the terminal comprising a first electrical connection terminal and a second electrical connection terminal, the first electrical connection terminal and the second electrical connection terminal respectively realize electrical conduction by being engaged with the mating electrical connection terminal of the mating connector, the first electrical connection terminal and the second electrical connection terminal respectively comprising an electrical connection portion for being engaged with the mating electrical connection terminal and a conductor connection portion located on the opposite side of the electrical connection portion, and at least a portion of the respective conductor connection portions of the first electrical connection terminal and the second electrical connection terminal has a non-circular shape that is aligned with the terminal mounting opening of the cover portion. The terminal accommodating portion has a matching non-circular shape, and the plurality of terminal accommodating portions include: a first terminal accommodating portion for inserting and accommodating the first electrical connection terminal; and a second terminal accommodating portion for inserting and accommodating the second electrical connection terminal. The plurality of terminal mounting openings of the cover portion include: a first terminal mounting opening for mounting the conductor connection portion of the first electrical connection terminal; and a second terminal mounting opening for mounting the conductor connection portion of the second electrical connection terminal. The bus bar insertion portion includes: a first bus bar insertion portion for inserting the first bus bar and communicating with the first terminal accommodating portion; and a second bus bar insertion portion for inserting the second bus bar and communicating with the second terminal accommodating portion.

[0021] According to the connector having the above structure, a portion of the conductor connection portion of the terminal is provided with a non-circular structure, which can cooperate with the non-circular shape of the terminal mounting opening of the cover, reliably preventing the terminal from rotating and improving stability. In addition, by providing two bus bar insertion portions, namely the first bus bar insertion portion and the second bus bar insertion portion, it is possible to facilitate the connection operation of the two bus bars with the positive and negative terminals, and the positions of the two bus bar insertion portions can be designed to meet the personalized space wiring requirements.

[0022] Preferably, in the connector described above, the first bus bar insertion portion and the second bus bar insertion portion are arranged side by side in the mating direction, and the first terminal mounting port of the cover portion has a first end surface facing the connector housing, and the second terminal mounting port has a second end surface facing the connector housing, and the positions of the first end surface and the second end surface in the mating direction are different from each other.

[0023] According to the connector having the above structure, the terminals can be arranged up and down with a height difference to realize an L-shaped upper and lower wire outlet structure, and the wire outlet directions are consistent, the wiring operation is easier and more aesthetically pleasing.

[0024] Preferably, in the connector described above, the first terminal mounting port has a cylindrical extension portion extending toward the connector housing, so that the first end face of the first terminal mounting port is closer to the connector housing than the second end face of the second terminal mounting port in the mating direction, and a reinforcing rib portion is provided on the outer peripheral side of the extension portion.

[0025] According to the connector having the above structure, the strength of the cylindrical extension portion having a relatively high height can be reinforced by the reinforcing rib portion, thereby ensuring reliability.

[0026] The second aspect of the utility model provides a bus bar for connecting the connector described in the first aspect to a counterpart device, wherein the bus bar is flat in shape and has a rigid portion and a flexible portion welded together, and the rigid portion of the bus bar has at least one of a torsion portion and a bending portion.

[0027] According to the busbar with the above structure, the busbar can be used to replace the traditional wires. By bending and twisting the rigid part of the busbar according to the actual situation of the vehicle, various wiring scenarios can be met, and the flexible part of the busbar can absorb the installation tolerance. The busbar uses mature mechanical forming technology, without manual operation of the wire harness, which improves production efficiency; it can accurately wire in a narrow and tortuous wiring space, which can reduce the space originally occupied by the wire harness on the vehicle; the rigid part replaces the cable, making it possible to install the vehicle automatically in this aspect; the flexible part is combined with the rigid part to absorb the stress of vehicle vibration.

[0028] Preferably, in the busbar of the second aspect of the utility model, the flexible portion of the busbar is an elastically deformable portion having a laminated structure or a woven structure and is arranged close to an installation position, and the installation position is the installation position of the busbar and the connector and / or the installation position of the busbar and the other device.

[0029] According to the bus bar having the above structure, the effect of absorbing the mounting tolerance can be improved.

[0030] The connector and bus bar of the present invention have been described above, and will be described more clearly below with reference to the accompanying drawings for easier understanding. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings are used to better understand the present invention and do not constitute an improper limitation on the present invention.

[0032] Figure 1A is a schematic three-dimensional diagram of a connector according to an embodiment of the utility model;

[0033] Figure 1B is a schematic perspective view of a drain pipe for a connector;

[0034] Figure 2 is a schematic three-dimensional diagram of a state where a drain pipe is connected to a connector;

[0035] Figure 3 yes Figure 2 A partial cross-sectional view of the drain pipe portion is shown in the illustrated state;

[0036] Figure 4 is a schematic stereogram of a connector according to a modified example of the embodiment of the utility model;

[0037] Figure 5 is a schematic perspective view of a cover portion of a connector according to a modified example;

[0038] Figure 6 is a schematic perspective view of a terminal of a connector according to a modified example;

[0039] Figure 7 is a schematic cross-sectional view of a state where a connector according to a modification example is connected to a bus bar;

[0040] Figure 8 is a plan view of the connector of the modified example viewed from the cover mounting side in a state where the cover is opened;

[0041] Fig. 9 is a schematic perspective view of a state where a drain pipe is connected to a connector according to a modification;

[0042] Fig.10 is a schematic three-dimensional diagram of a bus bar according to an embodiment of the utility model;

[0043] Fig.11 is a schematic three-dimensional diagram of a bus bar connected to a connector according to an embodiment of the utility model;

[0044] Fig.12 It is a schematic three-dimensional diagram of the connection between the bus bar and the connector according to an embodiment of the utility model.

[0045] Reference numerals list

[0046] 100 connectors

[0047] 110 connector housing

[0048] 111 first through hole

[0049] 112 Boss

[0050] 113 Channel Department

[0051] 120 cover

[0052] 121 wall

[0053] 122 second through hole

[0054] 123 bottom wall

[0055] 130 terminal accommodating portion

[0056] 131 first terminal accommodating portion

[0057] 132 second terminal accommodating portion

[0058] 133 third terminal accommodating portion

[0059] 140 terminal installation port

[0060] 141 First terminal installation port

[0061] 142 Second terminal installation port

[0062] 143 Third terminal installation port

[0063] 144 reinforcement ribs

[0064] 145 partition wall

[0065] 151 first bus bar insertion portion

[0066] 152 Second bus bar insertion portion

[0067] 153 Cable insertion part

[0068] 180 end cap

[0069] 200 Drainage pipe

[0070] 300 terminal

[0071] 300A first electrical connection terminal

[0072] 300B Second electrical connection terminal

[0073] 300C ground terminal

[0074] 310 electrical connection

[0075] 320 conductor connection

[0076] 321 conductor installation part

[0077] 322 Anti-rotation Department

[0078] 400 Bus Bar

[0079] 400A first busbar

[0080] 400B Second bus bar

[0081] 410, 420 installation part

[0082] 430, 450, 470 bending parts

[0083] 440 Torsion

[0084] 460 Flexible part

[0085] 1 Sealing ring

[0086] 2 Sealing ring

[0087] W Cable

[0088] 500 ground wire

[0089] 600LA terminal

[0090] A, B, C separation area DETAILED DESCRIPTION

[0091] Hereinafter, the specific implementation modes of the present invention will be described with reference to the accompanying drawings to more clearly illustrate the technical solutions of the present invention.

[0092] It should be noted that the drawings in the present invention are only schematic diagrams for the purpose of clearly showing the parts related to the scheme of the present invention, and some non-essential parts that may exist are not shown. Therefore, these drawings should not be understood as limiting the present invention, and they may be different from the actual structure when used. In addition, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", etc. that may appear in the following description to indicate orientation or position are for the purpose of convenience of explanation and are not restrictive. Similarly, for the sake of clarity and conciseness, the description of well-known functions and structures is omitted in the following description.

[0093] Figure 1A is a schematic three-dimensional diagram of a connector 100 according to an embodiment of the utility model; Figure 1B is a schematic perspective view of a drain pipe 200 for use with the connector 100; Figure 2 is a schematic perspective view of a state where the drain pipe 200 is connected to the connector 100; and Figure 3 yes Figure 2 In the illustrated state, a partial cross-sectional view of this portion of the drain pipe 200 is shown.

[0094] The connector 100 according to this embodiment is used to engage with a mating connector to achieve electrical conduction, and a terminal receiving portion 130 is provided inside for the terminal to be inserted and received therein. For example, the connector 100 may be a charging socket for charging a car. Of course, this is not restrictive, and the connector may be various connectors with other uses and drainage requirements.

[0095] like Figure 2 , Figure 3As shown, the connector 100 includes a cylindrical connector housing 110, which has: a first through hole 111, which penetrates the wall of the connector housing 110 in a radial direction perpendicular to the mating direction of the mating connector (in the up-down direction when installed); and a boss portion 112, which is arranged to protrude outward from the outer surface of the connector housing 110 around the first through hole 111, and a threaded portion is formed on the inner circumference of the boss portion 112. The first through hole 111 and the boss portion 112 are both circular.

[0096] According to the connector having the above structure, even if water intrudes into the connector, the intruded water can be discharged from the boss portion 112 to the outside through the first through hole 111, thereby achieving waterproofness with a simple structure; in addition, since a threaded portion is formed on the inner circumferential surface of the boss portion 112, the boss portion 112 serves as a connection member in addition to a drainage channel. In response to the diverse drainage requirements of different vehicles, the connector can be used to connect the boss portion 112 to the outside. Figure 1B The drain pipe 200 shown (which can be a commercially available standard part) is screwed to the boss 112 or the drain pipe jacket is directly inserted into the boss 112 to drain water through the drain pipe 200. For example, for a vehicle, due to the body environment requirements of different manufacturers, the body is divided into a dry area and a wet area. If the connector 100 as a charging socket is designed in the wet area, there is no need to divert water to other places, and it can be directly discharged from the first through hole 111 through the boss 112; but if the charging socket is designed in the dry area, it is necessary to connect an external drain pipe to the first through hole to guide the water to the wet area for discharge. Through the structure of the utility model, the cost of developing molds is reduced, and the drain pipe can be quickly installed. By replacing the external drain pipe, not only can the diversity of drain pipe installation be met, but also the drainage method can be enriched, and the direct drainage or docking drain pipe can be selected according to the customer's drainage requirements. In addition, for the boss, the specifications of its inner diameter and thread can be configured, so that for the external drain pipe, various commercially available standard drain pipes can be used, the components are easy to obtain, and the universal performance is improved. Of course, the drain pipe is not limited to the above.

[0097] like Figure 1A As shown, in the connector 100 of the present invention, a cover 120 having a peripheral wall portion 121 may also be included. The cover 120 can be assembled to the connector housing 110 of the connector 100, so that the peripheral wall portion 121 of the cover 120 surrounds the outer peripheral side of the connector housing 110. The peripheral wall portion 121 of the cover 120 is provided with a second through hole 122 penetrating the peripheral wall portion 121 in the radial direction, and the second through hole 122 is communicated with the first through hole 111.

[0098] According to the connector 100 having the above structure, the peripheral wall portion 121 of the cover portion 120 can surround the outer peripheral side of the connector housing 110 to cover the boss portion 112 from the outer periphery, so that the connector 100 is more beautiful as a whole, and the boss portion 112 is not exposed to the outside, thereby avoiding the boss portion 112 from accidentally hooking or interfering with other components. Of course, it is also feasible that the boss portion 112 protrudes from the second through hole 122.

[0099] like Figure 2 As shown, the inner circumference of the connector housing 110 of the connector 100 may also be provided with a channel portion 113, and the channel portion 113 is provided around the first through hole 111. In the inner circumference of the connector housing 110, the channel portion 113 may be a recessed portion that is one step lower than an adjacent portion, or the channel portion 113 may also be an inclined portion that is inclined radially outward as it approaches the first through hole 111. By providing the channel portion, water can be further directed to the first through hole 111, ensuring smooth discharge of water.

[0100] The above describes the connector according to the embodiment of the utility model, which can achieve various drainage requirements with a simple structure. Next, a modification of the connector will be described. Figures 4 to 9 As shown, the cover portion 120 of the connector further includes a bottom wall portion 123 extending vertically at one end of the peripheral wall portion 121 (see Figure 5 ), so that when the cover 120 is assembled to the connector housing 110, the bottom wall 123 of the cover 120 covers the end of the connector housing 110 in the mating direction, and the bottom wall 123 of the cover 120 is provided with a terminal installation opening 140, which is connected to the terminal accommodating portion 130, and the terminal installation opening 140 of the cover 120 is formed in a non-circular shape. The non-circular shape can be the shape shown in the figure or other shapes.

[0101] According to the connector having the above structure, when the terminal 300 is installed in the terminal accommodating portion 130 of the connector housing 110, although the terminal 300 may be, for example, a cylindrical terminal and is thus prone to rotation, such rotation can be suppressed by the non-circular shape of the terminal mounting opening 140 of the cover portion 120, thereby ensuring the stability of the terminal 300.

[0102] The structure of terminal 300 is as follows Figure 6As shown, it may include an electrical connection portion 310 configured at one end and a conductor connection portion 320 configured on the opposite side of the electrical connection portion 310. The electrical connection portion 310 is used to cooperate with the mating terminal to achieve electrical connection, and the conductor connection portion 320 is used to connect with the conductor. Different from the conductor connection portion for crimping cables of the conventional terminal, the conductor connection portion 320 of the terminal 300 of this embodiment does not provide a crimping piece but provides a hole portion on the end face as a conductor mounting portion 321, and the bolt can be screwed into the conductor mounting portion 321. In the conductor connection portion 320, an anti-rotation portion 322 is also provided, which is formed by making the conductor connection portion 320 a non-circular shape, for example, a missing corner cylinder, and the non-circular shape matches the non-circular shape of the terminal mounting port 140. In addition to the electrical connection terminal, the terminal 300 also includes a grounding terminal for cooperating with the mating grounding terminal to achieve grounding. The terminal 300 is sometimes divided into a first electrical connection terminal 300A, a second electrical connection terminal 300B and a grounding terminal 300C later.

[0103] As shown in the figure, in the connector 100 of the present embodiment, the terminal accommodating portion 130 is configured as a plurality of, for example, a first terminal accommodating portion 131 and a second terminal accommodating portion 132 for accommodating the first electrical connection terminal 300A and the second electrical connection terminal 300B respectively, and a third terminal accommodating portion 300C for accommodating the ground terminal 300C. Correspondingly, the terminal mounting opening 140 of the cover 120 is also configured as a plurality of, for example, a first terminal mounting opening 141 corresponding to the first terminal accommodating portion 131, a second terminal mounting opening 142 corresponding to the second terminal accommodating portion 132, and a third terminal mounting opening 143 corresponding to the third terminal accommodating portion 133. The plurality of terminal mounting openings 141, 142, 143 of the cover 120 are separated from each other by a partition wall 145, so that the plurality of terminal mounting openings 141, 142, 143 are divided into different spaces (partition areas A, B, C) from each other. The terminal installation openings 141, 142, 143 are divided into zones by using the partition wall 145, so that, for example, the terminal installation openings of the first electrical connection terminal 300A for the positive electrode, the second electrical connection terminal 300B for the negative electrode, and the grounding terminal 300C for the grounding are arranged in the partition area to ensure that the current does not flow in series and improve the reliability. In this embodiment, only the first to third terminal accommodating portions are marked for the terminal accommodating portion 130, but as shown in the figure, it can also include a plurality of terminal accommodating portions for signal terminals.

[0104] In addition, unlike the straight-in and straight-out outlet method through the cable W shown in Figure 1, in the variant example, the busbar 400 can be used instead of the cable W. In the connector of the variant example, the cover 120 is provided with a busbar insertion part (the first busbar insertion part 151 and the second busbar insertion part 152 in this embodiment), and the busbar insertion part is arranged to protrude outward in a direction perpendicular to the fitting direction and has an open end, so that the busbar 400 can be inserted into the corresponding busbar insertion part and enter the corresponding terminal accommodating part. Accordingly, the terminal can be connected to the busbar as a conductor at an angle of about 90 degrees, forming an L-shaped outlet structure, which can meet the large-capacity power supply requirements and can be compactly wired. Next to the first busbar insertion part 151 and the second busbar insertion part 152, a cable insertion part 153 can be provided for the ground wire 500 to be inserted.

[0105] Normally, passenger cars have limited requirements for the space occupied by products. For the straight-in and straight-out outlet method in the embodiment of Figure 1, if the manufacturer has requirements for the outlet method, if the wire bending method is used, it will not only waste installation space, but the bending of the wire will cause the stress at the bend of the wire core to increase, thereby affecting the service life, and there will be safety hazards over time. Moreover, the straight-out outlet method of the wire is soft, so the wire has a large installation tolerance margin, and the heat generation during charging is relatively serious. The cost of the wire is high, and the heat generation is relatively serious under the condition of high-current fast charging. In contrast, in the variant example, a bus bar is used instead of a cable, and the cable is designed into an L-shaped outlet method, which effectively saves installation space, has better heat dissipation than wires during charging, and effectively guarantees the manufacturer's requirements for space and heat dissipation.

[0106] like Figure 5 As shown, the first terminal installation opening 141 of the cover 120 for installing the conductor connection part 320 of the first electrical connection terminal 300A and the second terminal installation opening 142 of the conductor connection part 320 for installing the second electrical connection terminal 300B are arranged side by side in the mating direction, which can facilitate the connection operation with the terminal 300.

[0107] like Figure 5 , Figure 7 As shown in the figures, the first terminal installation opening 141 of the cover 120 has a first end surface facing the connector housing, and the second terminal installation opening 142 has a second end surface facing the connector housing, and the first end surface and the second end surface are located at different positions in the mating direction. According to the connector having the above structure, the upper and lower arrangement of the terminals with a height difference can realize an L-shaped upper and lower wire outlet structure.

[0108] In this variation, the first terminal mounting port 141 of the connector cover portion 120 may have a cylindrical extension portion extending toward the connector housing, so that the first end face of the first terminal mounting port 141 is closer to the connector housing than the second end face of the second terminal mounting port 142 in the mating direction, and a reinforcing rib portion 144 may be provided on the outer peripheral side of the extension portion, which can utilize the reinforcing rib portion to strengthen the strength of the cylindrical extension portion to ensure reliability.

[0109] In addition, if Fig. 9 As shown in Figures 1 and 2, the connector may also be provided with an openable and closable end cover 180 for closing the connector housing in the opposite direction of the cover portion 120. One end of the end cover 180 is connected to the connector housing by a hinge.

[0110] The connector 100 of the present modification has been described above, wherein Fig.11 As shown, the end cover 180 and the cover 120 are assembled on the connector housing, and the end cover 180 is opened to Figure 4 The terminal accommodating portion shown in the figure has a first terminal accommodating portion 131 for DC+ and a second terminal accommodating portion 132 for DC-, a third terminal accommodating portion 133 for grounding, and a plurality of signal terminal accommodating portions. In this modification, a bus bar such as an aluminum bus bar is used to replace the conventional cable. The first bus bar inserting portion 151 and the second bus bar inserting portion 152 of the cover 120 are used to hold the first bus bar 400A and the second bus bar 400B. The sealing rings 1 and 2 can be respectively mounted on the first bus bar 400A and the second bus bar 400B to prevent water from entering the connector.

[0111] like Figure 7 As shown, bolts are inserted into the holes of the mounting portion 410 of the first bus bar 400A and the holes of the conductor mounting portion of the first electrical connection terminal 300A of DC+ to connect the two, and bolts are inserted into the holes of the mounting portion 410 of the second bus bar 400B and the holes of the conductor mounting portion of the second electrical connection terminal 300B of DC- to connect the two, and the first electrical connection terminal 300A and the first electrical connection terminal 300B are arranged up and down with a height difference to realize an L-shaped upper and lower wire outlet structure (in this variant example, according to the direction of the wire outlet, the figure shows the wire outlet on the right side, so DC+ is higher than DC-; however, it may be that when the wire outlet is on the left side, DC- is higher than DC+).

[0112] In this modification, the ground wire 500 is still in the form of a cable, and the end of the ground wire 500 can be crimped to the wire crimping portion of the LA terminal and connected to the ground terminal accommodated in the third terminal accommodating portion 133 via the end of the LA terminal. However, the ground wire 500 can also be replaced by a bus bar.

[0113] like Figure 5As shown, partitions A, B, and C are set between the mounting parts of the positive pole DC+, the negative pole DC-, and the ground wire. The partitions ensure that current does not flow in series. Partition A is used to install the first electrical connection terminal, partition B is used to install the second electrical connection terminal, and partition C is used to install the ground terminal. The terminal mounting openings of the three partitions are designed to be non-circular in shape. In order to ensure that the terminals do not rotate, an upper and lower arrangement with a height difference is designed. Therefore, the height of partition A is higher than that of other partitions through a cylindrical extension. Further reinforcing ribs are designed to ensure that the strength of the raised part is enhanced; the hole next to the third terminal mounting opening in partition C can be the position of the signal terminal.

[0114] Figure 10 to Figure 12 A bus bar 400 for connecting the connector 100 to a counterpart device is shown, the bus bar 400 is flat, and the bus bar 400 has a rigid portion and a flexible portion welded to each other by, for example, friction welding or brazing, and the rigid portion of the bus bar has at least one of a torsion portion and a bending portion. Fig.10 As shown, bending portions 430 , 450 , 470 and a twisting portion 440 are illustrated. The bending portion is achieved by bending the bus bar, and the twisting portion is achieved by twisting the bus bar. In addition, a flexible portion 460 having elasticity is also illustrated.

[0115] Of course, it can be understood that the positions and settings of the above bending parts, torsion parts and flexible parts are examples and can be adjusted according to actual wiring. According to the busbar 400 having the above structure, the busbar can be used to replace the traditional cable, and various wiring scenarios can be met by bending and torsion processing the rigid part of the busbar according to the actual situation of the vehicle, and the flexible part of the busbar can absorb the installation tolerance. The appearance of the busbar 400 can be processed as an insulation layer by processes such as extrusion, powder spraying and shrink tube.

[0116] In the bus bar 400, the flexible portion of the bus bar may be a portion having a laminated structure or a braided structure that can be elastically deformed and is disposed close to an installation position, which is an installation position of the bus bar and the connector 100 and / or an installation position of the bus bar and the counterpart device. According to the bus bar having the above structure, the effect of absorbing installation tolerance can be improved.

[0117] By utilizing the above busbars, the bending and twisting parts can be designed to cope with different vehicle body environments, such as precise wiring in narrow and tortuous wiring spaces. By designing the flexible part, the installation work margin can be guaranteed. Moreover, compared with traditional cables, it is suitable for large current power transmission and has good heat dissipation. The busbar uses mature mechanical forming technology, which does not require manual operation of the wiring harness, thereby improving production efficiency; it can accurately wire in narrow and tortuous wiring spaces, which can reduce the space originally occupied by the wiring harness on the vehicle; the rigid part replaces the cable, making it possible to automatically install the vehicle in this aspect; the flexible part is combined with the rigid part to absorb the stress of vehicle vibration.

[0118] The above specific implementations do not constitute a limitation on the protection scope of the present utility model. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may occur depending on design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

[0119] For example, in a variation of the above embodiment, the first bus bar insertion portion 151 and the second bus bar insertion portion 152 are arranged side by side in the mating direction, and accordingly, the first end face of the first terminal mounting port 141 and the second end face of the second terminal mounting port 142 are located at different positions in the mating direction, but this is not restrictive. The first bus bar insertion portion and the second bus bar insertion portion do not necessarily have to be arranged side by side in the mating direction, and may also be arranged side by side in the up-down direction, or may be staggered in the mating direction, or may be staggered in the up-down direction. Accordingly, the first end face of the first terminal mounting port and the second end face of the second terminal mounting port may also be located on the same plane in the mating direction. Of course, considering aspects such as the outlet direction, layout operability, and aesthetics, the embodiment is more preferred.

Claims

1. A connector, used to engage with a mating connector to achieve electrical conduction, characterized in that: include: A cylindrical connector housing, the connector housing having: a first through hole, the first through hole penetrating the wall of the connector housing in a radial direction perpendicular to the mating direction of the mating; and a boss portion, the boss portion being arranged to protrude outward from the outer surface of the connector housing around the first through hole, Wherein, a threaded portion is formed on the inner peripheral surface of the boss portion.

2. The connector according to claim 1, characterized in that: Also includes: a cover portion, the cover portion comprising a peripheral wall portion, The cover is assembled to the connector housing so that the peripheral wall of the cover surrounds the outer peripheral side of the connector housing. wherein the peripheral wall portion of the cover portion is provided with a second through hole penetrating the peripheral wall portion in the radial direction, and Wherein, the second through hole is connected to the first through hole.

3. The connector according to claim 1, characterized in that: The inner circumferential surface of the connector housing is also provided with a channel portion. The channel portion is disposed around the first through hole, and In the inner peripheral surface of the connector housing, the channel portion is a recessed portion that is one step lower than an adjacent portion, or the channel portion is an inclined portion that is inclined toward the radial outside as it approaches the first through hole.

4. The connector according to claim 2, characterized in that: The connector housing is provided with a terminal receiving portion inside, into which the terminal is inserted and received. The cover portion further includes a bottom wall portion extending vertically at one end of the peripheral wall portion, so that when the cover portion is assembled to the connector housing, the bottom wall portion of the cover portion covers an end portion of the connector housing in the mating direction. The bottom wall portion of the cover portion is provided with a terminal installation opening, the terminal installation opening being communicated with the terminal accommodating portion, and The terminal mounting opening of the cover is formed in a non-circular shape.

5. The connector according to claim 4, characterized in that: The terminal accommodating portion is arranged in plural, and the terminal mounting opening of the cover is arranged in plural in correspondence with the terminal accommodating portion, and The plurality of terminal installation openings of the cover are partitioned from each other by partition walls, so that the plurality of terminal installation openings are divided into different spaces.

6. The connector according to claim 5, characterized in that: The cover is provided with a bus bar insertion portion which is provided to protrude outward in a direction perpendicular to the fitting direction and has an open tip, so that a bus bar can be inserted into the corresponding bus bar insertion portion and enter the corresponding terminal accommodating portion.

7. The connector according to claim 6, characterized in that: Also includes: The terminal, The terminal comprises a first electrical connection terminal and a second electrical connection terminal, wherein the first electrical connection terminal and the second electrical connection terminal are respectively electrically connected by being engaged with a mating electrical connection terminal of a mating connector, the first electrical connection terminal and the second electrical connection terminal respectively comprise an electrical connection portion for being engaged with the mating electrical connection terminal and a conductor connection portion located on the opposite side of the electrical connection portion, and at least a portion of each conductor connection portion of the first electrical connection terminal and the second electrical connection terminal has a non-circular shape matching the non-circular shape of the terminal mounting opening of the cover portion, The plurality of terminal accommodating portions include: a first terminal accommodating portion for inserting and accommodating the first electrical connection terminal; and a second terminal accommodating portion for inserting and accommodating the second electrical connection terminal. The plurality of terminal installation openings of the cover portion include: a first terminal installation opening for installing a conductor connection portion of a first electrical connection terminal; and a second terminal installation opening for installing a conductor connection portion of a second electrical connection terminal, and The bus bar insertion portion includes: a first bus bar insertion portion into which a first bus bar is inserted and which communicates with the first terminal accommodation portion; and a second bus bar insertion portion into which a second bus bar is inserted and which communicates with the second terminal accommodation portion.

8. The connector according to claim 7, characterized in that: The first bus bar insertion portion and the second bus bar insertion portion are arranged side by side in the fitting direction, and The first terminal mounting opening of the cover has a first end surface facing the connector housing, and the second terminal mounting opening has a second end surface facing the connector housing, and the first end surface and the second end surface are located at different positions in the mating direction.

9. The connector according to claim 8, characterized in that: The first terminal mounting port has a cylindrical extension portion extending toward the connector housing, so that the first end surface of the first terminal mounting port is closer to the connector housing than the second end surface of the second terminal mounting port in the mating direction, and a reinforcing rib portion is provided on the outer peripheral side of the extension portion.

10. A bus bar for connecting the connector according to any one of claims 1 to 9 to a counterpart device, characterized in that: The bus bar is in a flat shape, and the bus bar has a rigid portion and a flexible portion welded to each other, and The rigid portion of the bus bar has at least one of a torsion portion and a bent portion.

11. The bus bar according to claim 10, characterized in that: The flexible portion of the busbar is an elastically deformable portion having a laminated structure or a woven structure and is disposed close to an installation position, which is an installation position of the busbar and the connector and / or an installation position of the busbar and the counterpart device.

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