Electrical connection device and truck

Abstract

Provided are an electrical connection device and a truck. The electrical connection device comprises a saddle (100), a kingpin, and a slip ring (200). The saddle (100) is arranged on any one of a tractor (300) and a trailer (400), the kingpin is arranged on the other one of the tractor (300) and the trailer (400), and the kingpin can be inserted and fixed to the saddle (100). When the saddle (100) is connected to the kingpin, the slip ring (200) is arranged around the saddle (100), and the central axis of the slip ring (200) coincides with the central axis of the kingpin. The slip ring (200) is mounted on one of the tractor (300) and the trailer (400), an electrical system of said one is connected to a stator of the slip ring (200), and a mover of the slip ring (200) can be connected to an electrical system of the other one of the tractor (300) and the trailer (400). In the electrical connection device and the truck, the problem of line torsional fracture is not easily caused; in addition, the structure is simpler, machining and assembly are facilitated, implementation is facilitated, the connection is reliable and safe, and feasibility is guaranteed.

Description

Electrical connection devices and trucks

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application number 202311067803.4, filed with the Chinese Patent Office on August 23, 2023, and entitled “Electrical Connection Device and Truck,” the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present application relates to the field of electrical connection technology, and in particular to an electrical connection device and a truck. Background Art

[0004] The truck has a tractor and a trailer. After the tractor and the trailer are assembled, they need to be electrically connected to each other.

[0005] The tractor and trailer of existing trucks are usually directly electrically connected by cables. However, the tractor and trailer will rotate relative to each other during driving. This causes the cables connected between the tractor and trailer to be easily twisted and broken due to the relative rotation between the tractor and trailer, eventually causing the electrical connection between the tractor and trailer to fail, affecting the normal driving of the truck.

[0006] Summary of the Invention

[0007] The purpose of the present application is to provide an electrical connection device and a truck to reduce the risk of electrical connection failure between a tractor and a trailer.

[0008] The electrical connection device provided in this application includes a saddle, a king pin and a slip ring.

[0009] The saddle is provided on either the tractor or the trailer, the kingpin is provided on the other of the tractor and the trailer, and the kingpin can be plugged and fixed to the saddle; when the saddle is connected to the kingpin, the slip ring is provided around the saddle, and the central axis of the slip ring coincides with the central axis of the kingpin.

[0010] The slip ring is installed on one of the tractor and the trailer, and the electrical system of the tractor is connected to the stator of the slip ring. The mover of the slip ring can be connected to the electrical system of the other one of the tractor and the trailer.

[0011] Optionally, as an implementation method, the mover of the slip ring is provided with a first connector, and the electrical system of the tractor or the electrical system of the trailer is provided with a second connector; the first connector can be plugged into the second connector to connect the mover of the slip ring with the electrical system of the tractor or the electrical system of the trailer.

[0012] Optionally, as an implementable embodiment, the electrical connection device further includes a driving mechanism.

[0013] The second connector is fixed to the tractor or the trailer, and the driving mechanism is configured to drive the first connector to move toward or away from the second connector; or the first connector is fixed to the mover of the slip ring, and the driving mechanism is configured to drive the second connector to move toward or away from the first connector.

[0014] Optionally, as an implementable embodiment, the electrical connection device further includes a reset mechanism, and the reset mechanism is configured to drive the mover of the slip ring to rotate to an initial position.

[0015] Optionally, as an implementation method, the mover of the slip ring is connected to a first connector via a cable, the electrical system of the tractor or the electrical system of the trailer is provided with a second connector, and the first connector can be electrically connected to the second connector.

[0016] Optionally, as an implementable embodiment, the electrical connection device further includes a locking device, and the locking device is configured to lock the first connector and the second connector so that the first connector and the second connector remain in a connected state.

[0017] Optionally, as an embodiment, the slip ring is mounted on the tractor, and the tractor is provided with a first receiving portion, and the first receiving portion is configured to receive the first connector and insulate the first connector;

[0018] Alternatively, the slip ring is installed on the trailer, and the trailer is provided with a second receiving portion, and the second receiving portion is configured to receive the first connector and insulate the first connector.

[0019] Optionally, as an implementation method, the slip ring is arc-shaped, and the radial center line of the opening of the slip ring coincides with the center line of the opening of the saddle;

[0020] Alternatively, the slip ring is in a circular shape.

[0021] Optionally, as an implementable embodiment, the stator and the mover of the slip ring are connected to the high-voltage electrical system of the tractor and the high-voltage electrical system of the trailer respectively.

[0022] The present application also provides a truck, which includes a tractor, a trailer and the above-mentioned electrical connection device.

[0023] Compared with the prior art, the present invention has the following advantages:

[0024] The electrical connection device provided in this application can use the stator and mover of the slip ring to connect the electrical system of the tractor and the electrical system of the trailer, thereby realizing the electrical connection between the tractor and the trailer. The slip ring can be installed on either the tractor or the trailer. If the slip ring is installed on the tractor, the stator of the slip ring is connected to the electrical system of the tractor, and the mover of the slip ring is connected to the electrical system of the trailer; if the slip ring is installed on the trailer, the stator of the slip ring is connected to the electrical system of the trailer, and the mover of the slip ring is connected to the electrical system of the tractor. Taking the installation of a slip ring on a tractor as an example, because the center axis of the slip ring coincides with the center axis of the kingpin, when the tractor and trailer rotate relative to each other, the slip ring's mover can adaptively rotate relative to the slip ring's stator driven by the trailer. In other words, there is almost no torque generated between the trailer's electrical system and the slip ring's mover, making it less likely to cause torsional breakage. This allows the trailer's electrical system to maintain a reliable connection with the slip ring's mover while the truck is in motion, ensuring a good electrical connection between the tractor and trailer. The role of a slip ring installed on a trailer is similar to that of a tractor, so I will not elaborate on this here.

[0025] In addition, the electrical connection device provided by the present application arranges the slip ring around the saddle, which can make the slip ring have a larger available space, reduce the requirements for the slip ring and the connection structure between the slip ring and the tractor and trailer, make the structure simpler, easy to process and assemble, conducive to implementation, and the connection is reliable and safe, ensuring feasibility.

[0026] The truck provided in the present application includes the above-mentioned electrical connection device, and therefore has all the advantages of the above-mentioned electrical connection device, is less likely to have the problem of line torsion and breakage, and can ensure a good electrical connection effect between the tractor and the trailer; in addition, the structure is simpler, easy to process and assemble, conducive to implementation, and the connection is reliable and safe, ensuring feasibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without any creative work.

[0028] FIG1 is a schematic diagram of the assembly structure of the slip ring and the saddle provided in an embodiment of the present application;

[0029] FIG2 is a schematic structural diagram of a slip ring provided in an embodiment of the present application;

[0030] FIG3 is another structural schematic diagram of a slip ring provided in an embodiment of the present application;

[0031] FIG4 is a schematic diagram of a partial structure of a truck provided in an embodiment of the present application;

[0032] FIG5 is a schematic diagram of the partial structure of the truck provided in an embodiment of the present application from another perspective.

[0033] Description of reference numerals:

[0034] 100-saddle; 200-slip ring; 210-cable; 220-first connector; 300-tractor; 400-trailer. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solution of this application in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.

[0036] The present application will be further described in detail below through specific implementation examples and in conjunction with the accompanying drawings.

[0037] 1 to 5 , this embodiment provides an electrical connection device, which includes a saddle 100, a kingpin, and a slip ring 200; the saddle 100 is provided on either the tractor 300 or the trailer 400, and the kingpin is provided on the other of the tractor 300 and the trailer 400, and the kingpin can be plugged and fixed to the saddle 100; when the saddle 100 is connected to the kingpin, the slip ring 200 is arranged around the saddle 100, and the central axis of the slip ring 200 coincides with the central axis of the kingpin; the slip ring 200 is installed on one of the tractor 300 and the trailer 400, and the electrical system of the tractor 300 and the trailer 400 is connected to the stator of the slip ring 200, and the mover of the slip ring 200 can be connected to the electrical system of the other of the tractor 300 and the trailer 400.

[0038] The electrical connection device provided in this embodiment can utilize the stator and mover of the slip ring 200 to connect the electrical system of the tractor 300 and the electrical system of the trailer 400, thereby achieving electrical connection between the tractor 300 and the trailer 400. The slip ring 200 can be installed on either the tractor 300 or the trailer 400. If the slip ring 200 is installed on the tractor 300, the stator of the slip ring 200 is connected to the electrical system of the tractor 300, and the mover of the slip ring 200 is connected to the electrical system of the trailer 400; if the slip ring 200 is installed on the trailer 400, the stator of the slip ring 200 is connected to the electrical system of the trailer 400, and the mover of the slip ring 200 is connected to the electrical system of the tractor 300. Taking the installation of slip ring 200 on tractor 300 as an example, because the central axis of slip ring 200 coincides with the central axis of the kingpin, when tractor 300 and trailer 400 rotate relative to each other, the mover of slip ring 200 can adaptively rotate relative to the stator of slip ring 200 driven by trailer 400. In other words, there is almost no torque generated between the electrical system of trailer 400 and the mover of slip ring 200, so the problem of line torsional fracture is unlikely to occur. During the driving process of the truck, the electrical system of trailer 400 and the mover of slip ring 200 can maintain a reliable connection, thereby ensuring a good electrical connection between tractor 300 and trailer 400. The installation of slip ring 200 on trailer 400 plays a similar role as that of installation on tractor 300, and will not be repeated here.

[0039] In addition, the electrical connection device provided in this embodiment arranges the slip ring 200 around the saddle 100, which can make the slip ring 200 have a larger available space, reduce the requirements for the connection structure between the slip ring 200 and the tractor 300 and the trailer 400, make the structure simpler, facilitate processing and assembly, facilitate implementation, and ensure reliable and safe connection, thereby ensuring feasibility.

[0040] In practice, taking the saddle 100 installed on the tractor 300 as an example, when the slip ring 200 is installed on the tractor 300, the slip ring 200 can be directly put on the outside of the saddle 100 and aligned in position. Under this condition, the slip ring 200 can be installed on the tractor 300; when the slip ring 200 is installed on the trailer 400, the slip ring 200 can be put on the outside of the kingpin and aligned in position. Under this condition, the slip ring 200 can be installed on the trailer 400. When the saddle 100 is matched with the kingpin, the slip ring 200 can also be wrapped around the outside of the saddle 100. Of course, the size of the slip ring 200 can be selected according to the size of the saddle 100 to ensure that the slip ring 200 can be wrapped around the outside of the saddle 100.

[0041] The mover of the slip ring 200 and the electrical system of the tractor 300 or the electrical system of the trailer 400 can be electrically connected in the following two ways:

[0042] The first one:

[0043] The mover of the slip ring 200 can be provided with a first connector, and the electrical system of the tractor 300 or the electrical system of the trailer 400 can be provided with a second connector. By plugging the first connector and the second connector, the mover of the slip ring 200 can be connected to the electrical system of the tractor 300 or the electrical system of the trailer 400, thereby realizing an electrical connection between the tractor 300 and the trailer 400, and the operation is convenient. Specifically, when the slip ring 200 is installed on the tractor 300, a second connector is provided on the electrical system of the trailer 400, and the first connector is plugged with the second connector to realize the connection between the mover of the slip ring 200 and the electrical system of the trailer 400; when the slip ring 200 is installed on the trailer 400, a second connector is provided on the electrical system of the tractor 300, and the first connector is plugged with the second connector to realize the connection between the mover of the slip ring 200 and the electrical system of the tractor 300.

[0044] Specifically, one of the first plug connector and the second plug connector may be configured as a socket, and the other may be configured as a plug.

[0045] A driving mechanism may also be provided in the electrical connection device provided in this embodiment. As an implementable embodiment, the second connector may be fixedly mounted on the tractor 300 or the trailer 400 (specifically, if the second connector is mounted on the electrical system of the tractor 300, the second connector is fixedly mounted on the tractor 300; if the second connector is mounted on the electrical system of the trailer 400, the second connector is fixedly mounted on the trailer 400). In this case, the driving mechanism is used to drive the first connector to move toward or away from the second connector to achieve plug-in engagement or disengagement of the first connector and the second connector. As another implementable embodiment, the first connector may be fixedly mounted on the mover of the slip ring 200. In this case, the driving mechanism is used to drive the second connector to move toward or away from the first connector to achieve plug-in engagement or disengagement of the first connector and the second connector, which is beneficial to improving the degree of mechanization. Optionally, the driving mechanism may be configured to drive the first connector to move toward or away from the second connector.

[0046] Specifically, after the first connector and the second connector are plugged together, the drive mechanism can maintain the current state, so that the drive mechanism can lock the first connector or the second connector, so that the first connector and the second connector remain in the plugged state.

[0047] In the specific structure of the electrical connection device provided in this embodiment, a reset mechanism can also be provided to utilize the reset structure to drive the mover of the slip ring 200 to rotate to an initial position, which is the relative position of the mover of the slip ring 200 and the stator in the absence of external force. Taking the installation of the slip ring 200 on the tractor 300 as an example, since the stator of the slip ring 200 is fixed to the tractor 300, the mover of the slip ring 200 can remain in its initial position when no external force is applied, so that the mover of the slip ring 200 and the tractor 300 maintain a specific relative position. When the saddle 100 is assembled and connected to the kingpin, the relative position of the tractor 300 and the trailer 400 is basically determined. Therefore, after the saddle 100 and the kingpin are connected, the mover of the slip ring 200 and the trailer 400 can maintain a specific relative position, so that the first connector on the mover is aligned with the second connector on the trailer 400. Therefore, after the saddle 100 and the kingpin are connected, the first connector and the second connector can be smoothly plugged and mated. The reset mechanism can be an elastic reset mechanism.

[0048] This method can realize automatic connection between the mover of the slip ring 200 and the electrical system of the tractor 300 or the electrical system of the trailer 400, which is conducive to automation.

[0049] The second type:

[0050] The mover of the slip ring 200 can be connected to the first connector 220 via a cable 210, and the electrical system of the tractor 300 or the electrical system of the trailer 400 can be provided with a second connector. The cable 210 is a flexible structure and can smoothly connect the first connector 220 and the second connector together, thereby realizing the connection between the mover of the slip ring 200 and the electrical system of the tractor 300 or the electrical system of the trailer 400, and further, realizing the electrical connection between the tractor 300 and the trailer 400, which is convenient to operate. Specifically, when the slip ring 200 is installed on the tractor 300, a second connector is provided on the electrical system of the trailer 400, and the first connector 220 is electrically connected to the second connector, thereby realizing the connection between the mover of the slip ring 200 and the electrical system of the trailer 400; when the slip ring 200 is installed on the trailer 400, a second connector is provided on the electrical system of the tractor 300, and the first connector 220 is electrically connected to the second connector, thereby realizing the connection between the mover of the slip ring 200 and the electrical system of the tractor 300.

[0051] A locking device may also be provided in the electrical connection device provided in this embodiment. After the first connector 220 and the second connector are electrically connected, the locking device may be used to lock the first connector 220 and the second connector so that the first connector 220 and the second connector remain connected, thereby preventing the first connector 220 and the second connector from being accidentally disconnected, thereby ensuring the reliability of the electrical connection between the tractor 300 and the trailer 400.

[0052] If the slip ring 200 is installed on the tractor 300, a first storage portion can be provided on the tractor 300. When the first connector 220 is in an idle state, the first storage portion can be used to store the first connector 220 and insulate the first connector 220. This not only prevents the first connector 220 from accidentally short-circuiting or being electrically connected, thereby improving safety, but also provides a certain degree of protection for the first connector 220, thereby preventing other structures from rubbing against or expanding the first connector 220 and damaging the first connector 220.

[0053] If the slip ring 200 is installed on the trailer 400, a second storage portion can be set on the trailer 400. When the first connector 220 is idle, the second storage portion can be used to store the first connector 220 and insulate the second connector. This not only prevents the first connector 220 from accidentally short-circuiting or being electrically connected, thereby improving safety, but also provides a certain degree of protection for the first connector 220 to prevent other structures from rubbing against or expanding the first connector 220 and damaging the first connector 220.

[0054] In this way, the electrical connection between the mover of the slip ring 200 and the electrical system of the tractor 300 or the electrical system of the trailer 400 can be manually achieved.

[0055] As shown in Figure 3, the slip ring 200 can be an arcuate slip ring, with the radial centerline of the arcuate slip ring's opening aligned with the centerline of the saddle 100's opening. This significantly reduces the likelihood of interference between the slip ring 200 and the kingpin, and can even prevent such interference, resulting in increased reliability. The arcuate slip ring primarily consists of two concentric cylindrical conductors with the same opening angle but different radii. During operation, the carbon brush slider rotates relative to the center of the slip ring 200 between the two concentric cylindrical conductors.

[0056] As shown in Figure 2, the slip ring 200 can also be an annular slip ring, which can reduce connection difficulty. An annular slip ring primarily consists of two concentric cylindrical conductors with different radii. During operation, one of the annular / cylindrical conductors can rotate relative to the other around their common rotation axis.

[0057] Specifically, the two ring / cylindrical conductors of the slip ring 200 are integrated together.

[0058] Optionally, the stator and mover of the slip ring 200 in this embodiment can be connected to the high-voltage electrical system of the tractor 300 and the high-voltage electrical system of the trailer 400 respectively to achieve high-voltage electrical connection between the trailer 400 and the tractor 300.

[0059] 4 and 5 , in practice, if the slip ring 200 is installed on the tractor 300 , the slip ring 200 can be connected to the frame of the tractor 300 ; if the slip ring 200 is installed on the trailer 400 , the slip ring 200 can be installed on the bottom of the trailer 400 .

[0060] This embodiment further provides a truck, which includes a tractor 300, a trailer 400 and the above-mentioned electrical connection device.

[0061] The truck provided in this embodiment includes the above-mentioned electrical connection device and thus has all the advantages of the above-mentioned electrical connection device. It is less likely to have the problem of line torsion and breakage, and can ensure a good electrical connection effect between the tractor 300 and the trailer 400. In addition, the structure is simpler, easy to process and assemble, and conducive to implementation. The connection is reliable and safe, ensuring feasibility.

[0062] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application. Industrial Applicability

[0064] In the electrical connection device and truck provided by this embodiment, the slip ring is arranged around the saddle, which can make the slip ring have a larger space available, reduce the requirements for the connection structure between the slip ring and the tractor and trailer, make the structure simpler, facilitate processing and assembly, facilitate implementation, and provide a reliable and safe connection, ensuring feasibility.

Claims

1. An electrical connection device, characterized in that: It comprises a saddle (100), a kingpin and a slip ring (200); The saddle (100) is arranged on any one of the tractor (300) and the trailer (400), the kingpin is arranged on the other of the tractor (300) and the trailer (400), and the kingpin can be plugged and fixed to the saddle (100); when the saddle (100) is connected to the kingpin, the slip ring (200) is arranged around the saddle (100), and the central axis of the slip ring (200) coincides with the central axis of the kingpin; The slip ring (200) is installed on one of the tractor (300) and the trailer (400), and the electrical system of the tractor is connected to the stator of the slip ring (200), and the mover of the slip ring (200) can be connected to the electrical system of the other of the tractor (300) and the trailer (400).

2. The electrical connection device according to claim 1, characterized in that: The mover of the slip ring (200) is provided with a first connector, and the electrical system of the tractor (300) is provided with a second connector; the first connector can be plugged into the second connector to connect the mover of the slip ring (200) to the electrical system of the tractor (300).

3. The electrical connection device according to claim 2, characterized in that: The electrical connection device further comprises a driving mechanism; the second connector is fixedly mounted on the tractor (300), and the driving mechanism is configured to drive the first connector to move towards or away from the second connector.

4. The electrical connection device according to claim 1, characterized in that: The mover of the slip ring (200) is provided with a first connector, and the electrical system of the trailer (400) is provided with a second connector; the first connector can be plugged into the second connector to connect the mover of the slip ring (200) to the electrical system of the trailer (400).

5. The electrical connection device according to claim 4, characterized in that: The electrical connection device also includes a driving mechanism; the second connector is fixedly mounted on the trailer (400), and the driving mechanism is configured to drive the first connector to move towards or away from the second connector.

6. The electrical connection device according to claim 2 or 4, characterized in that: The electrical connection device further comprises a driving mechanism; the first connector is fixedly arranged on a mover of the slip ring (200), and the driving mechanism is configured to drive the second connector to move towards or away from the first connector.

7. The electrical connection device according to any one of claims 2 to 6, characterized in that: The electrical connection device also includes a reset mechanism, which is configured to drive the mover of the slip ring (200) to rotate to an initial position.

8. The electrical connection device according to any one of claims 1 to 7, characterized in that: The mover of the slip ring (200) is connected to a first connector (220) via a cable (210); the electrical system of the tractor (300) or the electrical system of the trailer (400) is provided with a second connector; and the first connector (220) can be electrically connected to the second connector.

9. The electrical connection device according to claim 8, characterized in that: The electrical connection device further comprises a locking device, wherein the locking device is configured to lock the first connection head (220) and the second connection head so that the first connection head (220) and the second connection head remain in a connected state.

10. The electrical connection device according to claim 8 or 9, characterized in that: The slip ring (200) is installed on the tractor (300), and the tractor (300) is provided with a first receiving portion, wherein the first receiving portion is configured to receive the first connector (220) and insulate the first connector (220); 11. The electrical connection device according to any one of claims 8 to 10, characterized in that: The slip ring (200) is installed on the trailer (400), and the trailer (400) is provided with a second receiving portion, wherein the second receiving portion is configured to receive the first connector (220) and insulate the first connector (220).

12. The electrical connection device according to any one of claims 1 to 11, characterized in that: The slip ring (200) is an arc-shaped slip ring, and the radial center line of the opening of the arc-shaped slip ring coincides with the center line of the opening of the saddle (100); 13. The electrical connection device according to any one of claims 1 to 12, characterized in that: The slip ring (200) is a circular slip ring.

14. The electrical connection device according to any one of claims 1 to 13, characterized in that: The stator and the mover of the slip ring (200) are respectively connected to the high-voltage electrical system of the tractor (300) and the high-voltage electrical system of the trailer (400).

15. A truck, characterized in that: It comprises a tractor (300), a trailer (400) and the electrical connection device according to any one of claims 1 to 14.

16. The truck according to claim 15, characterized in that The slip ring is mounted on the frame of the tractor.

17. The truck of claim 15, wherein: The slip ring is installed on the bottom of the trailer.

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