Electric connection device and electric automobile

Abstract

The invention discloses an electric connection device and an electric automobile, the electric connection device comprises a connector body, an adapter plug and a fixing piece, the adapter plug is used for connecting the connector body and a cable, one end of the adapter plug is electrically connected to the connector body, and the other end of the adapter plug is electrically connected to the fixing piece. The adapter plug is arranged at one end of the connector body, the cable is arranged at the other end of the adapter plug in a penetrating mode and extends in the direction away from the connector body, and the fixing piece is arranged between the connector body and the adapter plug and used for supporting and / or fixing the adapter plug and / or the cable. According to the electric connection device, the connector body and the adapter plug and / or the cable are supported and / or fixed by arranging the fixing piece, so that the adapter plug and / or the cable are prevented from loosening or falling off from the connector body, and the reliability of electric connection is improved.

Description

Technical Field

[0001] The present invention relates to an electrical connection device and an electric vehicle. Background Art

[0002] Electric vehicles generally adopt replaceable battery packs. The battery packs can be removed at any time for replacement or charging, and then installed on the vehicle body after replacement or charging is completed. In existing electric vehicles with a replaceable structure, the cables on the electric vehicle are plugged into the sockets of the vehicle-end electrical connectors through plugs. Corresponding installation positions are set on the body brackets of the vehicle body. After the battery pack is placed in the installation position, it is connected to the vehicle-end electrical connector on the vehicle body through the battery-end electrical connector, and then fixed by a locking device. In this process, the electrodes of the battery-end electrical connector on the battery pack need to be in contact with the electrodes on the vehicle-end electrical connector to ensure power output.

[0003] Currently, the installation position of the vehicle-end electrical connector is relatively fixed. The vehicle-end electrical connector is generally installed at the front end of the electric vehicle. For an electric vehicle with a front-wheel drive mode, the cable can be directly inserted into the socket of the vehicle-end electrical connector through the plug. For an electric vehicle with a rear-wheel drive mode, it is plugged into the socket of the vehicle-end electrical connector at the front end of the electric vehicle through an adapter plug. However, the existing adapter plug is located above the vehicle-end electrical connector, and there is no additional support or fixing structure between the two except for plugging. After long-term use, it is easy to cause the plug to deform or fall off. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the defect of poor electrical connection effect of the electrical connector in the prior art, and provide an electrical connection device and an electric vehicle.

[0005] The present invention solves the above technical problem through the following technical solutions:

[0006] An electrical connection device, the electrical connection device includes a connector body, an adapter plug, and a fixing member. The adapter plug is used to connect the connector body and the cable. One end of the adapter plug is electrically connected to the connector body, the cable passes through the other end of the adapter plug and extends in a direction away from the connector body, and the fixing member is arranged between the connector body and the adapter plug. The fixing member is used to support and / or fix the adapter plug and / or the cable.

[0007] In this solution, the electrical connection device realizes support and / or fixation between the connector body and the adapter plug and / or the cable by setting the fixing member, preventing the adapter plug and / or the cable from loosening or falling off from the connector body, and improving the reliability of the electrical connection.

[0008] Preferably, the adapter plug is U-shaped, and one end of the U-shaped adapter plug connecting the cable is located above the connector body.

[0009] In this solution, the U-shaped adapter plug is used to realize the direction conversion of the cable relative to the connector body, which is convenient for adapting to the setting of the cable in the electric vehicle. After the cable turns, it is located above the connector body, so that the fixing member supports and fixes the adapter plug and the cable.

[0010] Preferably, the fixing member includes a first connecting plate and a second connecting plate, the first connecting plate and the second connecting plate are arranged at an angle, the first connecting plate is connected to the connector body, and the second connecting plate is connected to the adapter plug.

[0011] In this solution, the first connecting plate and the second connecting plate arranged at an angle make the fixing member form two connecting surfaces, which are convenient for connecting with the connector body and the adapter plug on the two connecting surfaces respectively, making the fixing member fit more closely to the surface of the connector body and having a compact structure.

[0012] Preferably, a first connection hole is provided on the first connecting plate for a first fastener to pass through to fix the fixing member to the connector body, and a second connection hole is provided on the second connecting plate for a second fastener to pass through to fix the fixing member to the adapter plug.

[0013] In this solution, with the above structure, it is convenient to install by passing through the first fastener and the second fastener, which improves the assembly speed and is also convenient for disassembly.

[0014] Preferably, a nut seat is fixedly connected to the side of the second connecting plate away from the adapter plug, the second connection hole passes through the nut seat, and internal threads are provided in the nut seat.

[0015] In this solution, by providing the nut seat, it is convenient to pass a bolt from one side of the adapter plug, and the bolt is threadedly connected to the second connection hole without additionally providing a nut, which is convenient for installation. At the same time, the nut seat also increases the strength of the second connecting plate at the second connection hole, so the thickness of the second connecting plate can be set thinner to save materials.

[0016] Preferably, one first connection hole is provided at each end of the first connecting plate.

[0017] In this solution, first connection holes are provided at both ends of the first connecting plate to fix both ends of the first connecting plate to the connector body. Compared with single-side fixing or center fixing, the force-bearing effect is good and the first connecting plate is not easily deformed.

[0018] Preferably, both ends of the first connecting plate are bent downward to form recessed portions, and connecting ears are respectively provided at both ends of the first connecting plate. The first connecting holes are provided on the connecting ears, and the recessed portions match the outer contour of the connector body.

[0019] In this solution, the first connecting holes are arranged on the connecting ears, which is convenient for connecting with the protruding ear seats on the connector body. The recessed portions match the outer contour of the connector body. The connector body is embedded in the recessed portions, and the connector body is clamped and fixed by the first connecting plate, improving the fixing effect.

[0020] Preferably, the adapter plug has a fixing portion, and the second connecting holes are correspondingly arranged with the fixing portion.

[0021] In this solution, a cable is connected to the fixing portion. The fixing portion is the main stress-bearing part. By correspondingly arranging the second connecting holes with the fixing portion, it is used to improve the fixing effect.

[0022] Preferably, a receiving groove is further provided on the second connecting plate. The receiving groove is correspondingly arranged with the fixing portion, and at least part of the fixing portion is embedded in the receiving groove.

[0023] In this solution, the second connecting plate surrounds and supports the fixing portion through the receiving groove to improve the fixing effect. At the same time, the receiving groove forms an avoidance space to avoid the fixing portion, facilitating the upward extension of other parts of the second connecting plate except the receiving groove and arranging connection structures thereon to improve the connection effect.

[0024] Preferably, the fixing member further has a first reinforcing rib, and the first reinforcing rib extends along the width direction of the fixing member.

[0025] In this solution, with the above structure, the strength of the fixing member in the width direction is improved.

[0026] Preferably, the number of the first reinforcing ribs is two, and the two first reinforcing ribs are arranged at intervals on the fixing member.

[0027] In this solution, with the above structure, the strength of the fixing member is improved.

[0028] Preferably, the first reinforcing ribs are correspondingly arranged one by one with the receiving grooves.

[0029] In this solution, since the second connecting plate is provided with the receiving grooves, the part of the second connecting plate at the receiving grooves will cause weak parts. By arranging the first reinforcing ribs, the strength at this place is increased.

[0030] Preferably, a chamfer is provided on the edge of the first connecting plate away from the second connecting plate.

[0031] In this solution, chamfers are provided mainly to increase the strength of the edge of the first connecting plate, and at the same time, the outer edge of the first connecting plate forms an inclined surface or an arc to avoid burrs and prevent scratches or bumps.

[0032] Preferably, the fixing member further has a second reinforcing rib, and the second reinforcing rib is provided at the joint of the first connecting plate and the second connecting plate.

[0033] In this solution, with the above structure, the strength of the joint of the first connecting plate and the second connecting plate is increased.

[0034] Preferably, the number of the second reinforcing ribs is multiple, and the multiple second reinforcing ribs are arranged at intervals along the length direction of the fixing member.

[0035] In this solution, with the above structure, the strength of the fixing member at the joint is improved.

[0036] An electric vehicle, characterized in that it includes the electrical connection device as described above.

[0037] Based on the common knowledge in the art, the above preferred conditions can be combined arbitrarily to obtain various preferred embodiments of the present invention.

[0038] The positive and progressive effects of the present invention are as follows: By providing the fixing member, the electrical connection device enables support and / or fixation between the connector body and the adapter plug and / or the cable, prevents loosening or detachment between the adapter plug and / or the cable and the connector body, and improves the reliability of the electrical connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 Structural schematic diagram of an electrical connector according to a preferred embodiment of the present invention Figure 1 。

[0040] Figure 2 Structural schematic diagram of an electrical connector according to a preferred embodiment of the present invention Figure 2 。

[0041] Figure 3 Structural schematic diagram of an electrical connector according to a preferred embodiment of the present invention Figure 3 。

[0042] Figure 4 Structural schematic diagram of a fixing member according to a preferred embodiment of the present invention Figure 1 。

[0043] Figure 5 Structural schematic diagram of a fixing member according to a preferred embodiment of the present invention Figure 2 。

[0044] Description of the reference numerals:

[0045] Vehicle-end connector 10

[0046] Battery terminal connector 20

[0047] Connector body 1

[0048] Adapter plug 2

[0049] Fixing part 21

[0050] Fixing member 3

[0051] First connecting plate 31

[0052] First connecting hole 311

[0053] Recessed part 312

[0054] Connecting ear 313

[0055] Chamfer 314

[0056] Second connecting plate 32

[0057] Second connecting hole 321

[0058] Nut seat 322

[0059] Receiving groove 323

[0060] First reinforcing rib 324

[0061] Second reinforcing rib 325

[0062] Cable 4

[0063] Width direction 100

[0064] Length direction 200 Detailed implementation manner

[0065] The present invention will be more clearly and completely described below by way of embodiments in conjunction with the accompanying drawings, but the present invention is not limited to the scope of the described embodiments thereby.

[0066] As Figures 1 - 5 shown, this embodiment discloses an electrical connector, which includes a vehicle-end connector 10 provided on an electric vehicle and a battery-end connector 20 provided on a battery pack, and the vehicle-end connector 10 is plugged and connected to the battery-end connector 20. The electrical connection device in this embodiment can be either the vehicle-end connector 10 or the battery-end connector 20. Specifically in this embodiment, the electrical connection device is described by taking the vehicle-end connector 10 as an example.

[0067] As Figures 1 - 5As shown, the electrical connection device includes a connector body 1, an adapter plug 2, and a fixing member 3. The adapter plug 2 is used to connect the connector body 1 and the cable 4. One end of the adapter plug 2 is electrically connected to the connector body 1, and the cable 4 passes through the other end of the adapter plug 2 and extends in a direction away from the connector body 1. The fixing member 3 is disposed between the connector body 1 and the adapter plug 2, and the fixing member 3 is used to support and / or fix the adapter plug 2 and / or the cable 4, so as to improve the positioning effect between the connector body 1 and the adapter plug 2 or between the connector body 1 and the cable 4, and prevent displacement from occurring between them, which may affect the electrical connection effect.

[0068] In one embodiment, the fixing member 3 can be supported between the connector body 1 and the adapter plug 2, or the fixing member 3 can be supported between the connector body 1 and the cable 4.

[0069] In another embodiment, the fixing member 3 can be fixed between the connector body 1 and the adapter plug 2, or the fixing member 3 can be fixed between the connector body 1 and the cable 4.

[0070] Of course, in other alternative embodiments, the fixing member 3 supports and fixes between the connector body 1 and the adapter plug 2 or the cable 4 at the same time.

[0071] As Figure 2 and Figure 3 shown, by providing the fixing member 3 between the connector body 1 and the adapter plug 2 and / or the cable 4, reliable support and / or fixation is achieved between the connector body 1 and the adapter plug 2 and / or the cable 4, preventing loosening or detachment between the adapter plug 2 and / or the cable 4 and the connector body 1, and improving the reliability of the electrical connection. Preferably, the adapter plug 2 is U-shaped, and one end of the U-shaped adapter plug 2 connecting the cable 4 is located above the connector body 1, which is convenient for changing the direction of the cable 4 and facilitating the arrangement of the cable 4 in an electric vehicle. After the cable 4 turns, it is located above the connector body 1, so that the fixing member 3 supports and fixes the adapter plug 2 and the cable 4.

[0072] As Figures 2 - 5 shown, in this embodiment, specifically, the fixing member 3 includes a first connecting plate 31 and a second connecting plate 32. The first connecting plate 31 and the second connecting plate 32 are arranged at an angle. The first connecting plate 31 is connected to the connector body 1, and the second connecting plate 32 is connected to the adapter plug 2. The first connecting plate 31 and the second connecting plate 32 arranged at an angle form two connecting surfaces, which are convenient for connecting to the connector body 1 and the adapter plug 2 on the two connecting surfaces respectively, making the fixing member 3 more conform to the surface of the connector body 1 and having a compact structure.

[0073] As Figures 1 - 5As shown in the figure, a first connection hole 311 is provided on the first connection plate 31 for a first fastener to pass through to fix the fixing member 3 to the connector body 1. A second connection hole 321 is provided on the second connection plate 32 for a second fastener to pass through to fix the fixing member 3 to the adapter plug 2, facilitating installation by passing the first fastener and the second fastener through, improving the assembly speed and also facilitating disassembly. Preferably, both the first fastener and the second fastener are bolts or snaps.

[0074] As Figure 4 shown, a nut seat 322 is fixedly connected to the side of the second connection plate 32 away from the adapter plug 2. The second connection hole 321 passes through the nut seat 322, and internal threads are provided in the nut seat 322. By providing the nut seat 322, it is convenient to pass a bolt from one side of the adapter plug 2, and the bolt is threadedly connected to the second connection hole 321 without the need to additionally provide a nut, making the installation convenient. At the same time, the nut seat 322 also increases the strength of the second connection plate 32 at the second connection hole 321, so the thickness of the second connection plate 32 can be set thinner to save materials.

[0075] As Figures 1 - 5 shown, a first connection hole 311 is provided at each end of the first connection plate 31. By providing the first connection holes 311 at both ends of the first connection plate 31 to fix both ends of the first connection plate 31 to the connector body 1, compared with single-sided fixing or central fixing, the force-bearing effect is good and the first connection plate 31 is not easily deformed.

[0076] As Figure 4 and Figure 5 shown, recessed portions 312 are formed by bending the two ends of the first connection plate 31 downward, and connection ears 313 are respectively provided at the two ends of the first connection plate 31. The first connection holes 311 are provided on the connection ears 313, and the recessed portions 312 match the outer contour of the connector body 1. By providing the first connection holes 311 on the connection ears 313, it is convenient to connect with the protruding ear seats on the connector body 1 without opening holes on the side wall of the connector body 1, and thus the strength of the side wall of the connector body 1 will not be affected. The recessed portions 312 match the outer contour of the connector body 1, the connector body 1 is embedded in the recessed portions 312, and the connector body 1 is clamped and fixed by the first connection plate 31, improving the fixing effect.

[0077] As Figures 1 - 3 shown, the adapter plug 2 has a fixing portion 21, and the second connection hole 321 is provided corresponding to the fixing portion 21. A cable 4 is connected to the fixing portion 21, and the fixing portion 21 is the main force-bearing part. By providing the second connection hole 321 corresponding to the fixing portion 21, the fixing effect is improved.

[0078] As Figures 2 - 5As shown, a receiving groove 323 is further provided on the second connecting plate 32. The receiving groove 323 is correspondingly arranged with the fixing portion 21, and at least a part of the fixing portion 21 is embedded in the receiving groove 323. The second connecting plate 32 surrounds and supports the fixing portion 21 through the receiving groove 323 to improve the fixing effect. At the same time, the receiving groove 323 forms an avoidance space to avoid the fixing portion 21, facilitating the upward extension of other parts of the second connecting plate 32 except the receiving groove 323 and arranging a connection structure thereon to improve the connection effect.

[0079] As Figure 4 and Figure 5 shown, in order to improve the strength of the fixing member 3 in the width direction 100, the fixing member 3 further has a first reinforcing rib 324, and the first reinforcing rib 324 extends along the width direction 100 of the fixing member 3. Preferably, the number of the first reinforcing ribs 324 is two, and the two first reinforcing ribs 324 are arranged at intervals on the fixing member 3 to further improve the strength of the fixing member 3.

[0080] As Figure 4 and Figure 5 shown, further preferably, the first reinforcing ribs 324 are arranged in one-to-one correspondence with the receiving grooves 323. Since the receiving grooves 323 are provided on the second connecting plate 32, weak parts will be formed at the positions of the receiving grooves 323. By arranging the first reinforcing ribs 324 in one-to-one correspondence with the receiving grooves 323, the strength at this place is increased.

[0081] As Figure 4 shown, a chamfer 314 is provided on the edge of the first connecting plate 31 away from the second connecting plate 32. The first connecting plate 31 forms a limiting step at the chamfer 314, which can cooperate with the flange of the connector body 1 to improve the connection and fixing effect between the fixing member 3 and the connector body 1.

[0082] By arranging the chamfer 314, the strength of the edge of the first connecting plate 31 is mainly increased, and at the same time, the outer edge of the first connecting plate 31 forms an inclined surface or an arc to avoid burrs and prevent scratches or bumps.

[0083] As Figure 4 shown, the fixing member 3 further has a second reinforcing rib 325, and the second reinforcing rib 325 is arranged at the joint of the first connecting plate 31 and the second connecting plate 32 to increase the strength of the joint of the first connecting plate 31 and the second connecting plate 32.

[0084] Preferably, the number of the second reinforcing ribs 325 is multiple, and the multiple second reinforcing ribs 325 are arranged at intervals along the length direction 200 of the fixing member 3 to further improve the strength of the fixing member 3.

[0085] This embodiment also discloses an electric vehicle, and the electric vehicle includes the electrical connection device as described above.

[0086] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0087] Although the specific embodiments of the present invention have been described above, those skilled in the art should understand that this is only an example, and the protection scope of the present invention is defined by the appended claims. Without departing from the principles and essence of the present invention, those skilled in the art can make various changes or modifications to these embodiments, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. An electrical connection device, characterized in that, The electrical connection device includes a connector body, an adapter plug, and a fixing member. The adapter plug is used to connect the connector body and a cable. One end of the adapter plug is electrically connected to the connector body, and the cable passes through the other end of the adapter plug and extends in a direction away from the connector body. The fixing member is disposed between the connector body and the adapter plug, and the fixing member is used to support and / or fix the adapter plug and / or the cable.

2. The electrical connection device according to claim 1, wherein The adapter plug is U-shaped, and one end of the U-shaped adapter plug connecting the cable is located above the connector body.

3. The electrical connection device according to claim 1, wherein The fixing member includes a first connecting plate and a second connecting plate. The first connecting plate and the second connecting plate are arranged at an angle. The first connecting plate is connected to the connector body, and the second connecting plate is connected to the adapter plug.

4. The electrical connection device according to claim 3, characterized in that, The first connecting plate is provided with a first connecting hole for a first fastener to pass through to fix the fixing member to the connector body. The second connecting plate is provided with a second connecting hole for a second fastener to pass through to fix the fixing member to the adapter plug; and / or, a chamfer is provided on one side edge of the first connecting plate away from the second connecting plate; and / or, the fixing member further has a second reinforcing rib, and the second reinforcing rib is disposed at the joint of the first connecting plate and the second connecting plate.

5. The electrical connection device according to claim 4, wherein, A nut seat is fixedly connected to one side of the second connecting plate away from the adapter plug. The second connecting hole passes through the nut seat, and an internal thread is provided in the nut seat; and / or, one first connecting hole is respectively provided at both ends of the first connecting plate; and / or, both ends of the first connecting plate are bent downward to form recessed portions, and connecting ears are respectively provided at both ends of the first connecting plate. The first connecting holes are provided on the connecting ears, and the recessed portions match the outer contour of the connector body; and / or, the adapter plug has a fixing portion, and the second connecting hole is correspondingly arranged with the fixing portion.

6. The electrical connection device according to claim 5, characterized in that, A receiving groove is further provided on the second connecting plate, and the receiving groove is correspondingly arranged with the fixing portion. At least a part of the fixing portion is embedded in the receiving groove.

7. The electrical connection device according to claim 6, characterized in that The fixing member further has a first reinforcing rib, and the first reinforcing rib extends along the width direction of the fixing member.

8. The electrical connection device according to claim 7, wherein, The number of the first reinforcing ribs is two, and the two first reinforcing ribs are spaced apart on the fixing member; and / or, the first reinforcing ribs are arranged in one-to-one correspondence with the receiving grooves.

9. The electrical connection device according to claim 4, characterized in that, The number of the second reinforcing ribs is multiple, and the multiple second reinforcing ribs are spaced apart along the length direction of the fixing member.

10. An electric vehicle, characterized in that, It includes the electrical connection device according to any one of claims 1-9.

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