Electric connector
The design of a seven-core plug and a fifteen-core plug combined with a spiral wiring harness solves the problem of socket mismatch, achieves consistency in the status of the tractor and trailer lights, simplifies the structure and reduces costs.
Patent Information
- Application Number
- CN202422506311.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-16
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-10-16
AI Technical Summary
The socket specifications of domestic and foreign trailers are different, resulting in mismatches between the sockets of the tractor and trailer. The existing electrical connectors are complex and costly, and cannot achieve consistency in the status of the lights.
A combination of a seven-core plug, a fifteen-core plug and a spiral wiring harness is used. The headlight contacts of the fifteen-core plug are connected to the corresponding contacts of the seven-core plug through the spiral wiring harness to achieve consistency in the headlight status.
The electric connector structure is simplified, the cost is reduced, and the consistency of the light status of the tractor and trailer with mismatched sockets is achieved.
Smart Images
Figure CN223427913U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to vehicle technical field, concretely relates to an electric connector. BACKGROUND
[0002] With the development of global economy, the international trade of trailers is more and more frequent. The trailer needs to use other tractor to realize the transfer in the production plant or transportation to the port. When the tractor towing trailer drives on the road, in order to facilitate the rear vehicle to know the driving intention of the tractor in time, the state of the trailer lamp should be consistent with that of the tractor, for example, when the left turn signal of the tractor is on, the left turn signal of the trailer should also be on to remind the rear vehicle. At present, the sockets related to the vehicle lamp are arranged on the tractor and the trailer, the sockets are corresponding to the vehicle lamps, the sockets of the tractor and the trailer are connected through the electric connector, so that when the vehicle lamp of the tractor is controlled to be on, the corresponding vehicle lamp of the trailer will also be on through the electric connector, realizing the consistency of the state of the vehicle lamp of the tractor and the trailer.
[0003] However, the specifications of the sockets of the domestic and foreign trailers are different, the sockets of the domestic trailer are mainly seven-hole sockets, and the sockets of the foreign trailer are mainly fifteen-hole sockets. In this way, when the number of the sockets of the tractor does not match that of the trailer, for example, when the trailer (fifteen-hole socket) to be exported is towed by the tractor, since the tractor is provided with a seven-hole socket, the two do not match, which will cause the inconvenience of the connection of the tractor and the trailer and the inconsistency of the state of the vehicle lamp.
[0004] In order to solve this problem, in the related art, multiple plugs, multiple sockets and multiple spiral wire bundles or connection wire bundles are combined together as an electric connector to realize the matching of the fifteen-hole socket and the seven-hole socket and the consistency of the state of the vehicle lamp of the tractor and the trailer. However, the electric connector is provided with more devices, the structure is complex, the installation is not simple and the cost is increased. UTILITY MODEL CONTENTS
[0005] The utility model embodiment provides an electric connector to solve the technical problem of complex structure and high cost of the electric connector for the tractor and the trailer in the related art.
[0006] In a first aspect, the utility model embodiment provides an electric connector, comprising:
[0007] A first plug, a second plug and a spiral wire bundle; the plug is provided with a contact point corresponding to the vehicle lamp, the first plug is a fifteen-core plug, and the second plug is a seven-core plug; the spiral wire bundle comprises multiple connection wires;
[0008] A first preset lamp contact point of the first plug is connected to a second preset lamp contact point of the second plug through a first connection wire; the preset lamp contact point corresponds to multiple of the rear position lamp, the outline lamp, the side marker lamp and the license plate lamp;
[0009] The left turn signal contact of the first plug is connected to the left turn signal contact of the second plug through a second connecting line;
[0010] The brake light contact of the first plug is connected to the brake light contact of the second plug through a third connecting line;
[0011] The right turn signal contact of the first plug is connected to the right turn signal contact of the second plug through a fourth connecting line;
[0012] The fog light contact of the first plug is connected to the fog light contact of the second plug through a fifth connecting line;
[0013] The reverse light contact of the first plug is connected to the reverse light contact of the second plug through a sixth connecting line.
[0014] Optionally, the left preset light contact and the right preset light contact of the first plug are connected, and the left preset light contact or the right preset light contact serves as the first preset light contact; the left preset light contact corresponds to a left rear position lamp, a left boundary lamp, a left side marker lamp and a license plate lamp, and the right preset light contact corresponds to a right rear position lamp, a right boundary lamp, a right side marker lamp and a license plate lamp.
[0015] Optionally, the plug is further provided with a contact corresponding to a common loop of the vehicle lamp;
[0016] The common loop contact of the first plug is connected to the common loop contact of the second plug through a seventh connecting line.
[0017] Optionally, cross-sectional areas of the first connecting line, the second connecting line, the third connecting line, the fourth connecting line, the fifth connecting line and the sixth connecting line are a first area, and a cross-sectional area of the seventh connecting line is a second area; wherein the first area is smaller than the second area.
[0018] Optionally, the plug column and the contact of the plug are connected one by one.
[0019] Optionally, each connecting line is provided with a first outer sheath, and a material of the first outer sheath is waterproof rubber material.
[0020] Optionally, the first outer sheaths of the connecting lines are different in color.
[0021] Optionally, the helical wire bundle has stretchable elasticity.
[0022] Optionally, the helical wire bundle is provided with a second outer sheath, and a material of the second outer sheath is waterproof rubber material.
[0023] Optionally, the first area is 1.5 square millimeters, and the second area is 2.5 square millimeters.
[0024] The electrical connector provided in the embodiment of the present application includes a first plug (a fifteen-core plug), a second plug (a seven-core plug) and a spiral wiring harness, and the plug is provided with contacts corresponding to the vehicle lights. The spiral wiring harness includes multiple connecting wires, among which the first preset light contact, left turn light contact, brake light contact, right turn light contact, fog light contact and reversing light contact of the first plug are respectively connected to the second preset light contact, left turn light contact, brake light contact, right turn light contact, fog light contact and reversing light contact of the second plug through the corresponding connecting wires of the spiral wiring harness. The preset light contacts correspond to multiple ones of the rear position lights, clearance lights, side marker lights and license plate lights. In this way, for a tractor and trailer with mismatched sockets, the use of the electrical connector can achieve the consistency of the vehicle light status of the two. The electrical connector only includes a seven-core plug, a fifteen-core plug and a spiral wiring harness, and has a simple structure, easy installation and low cost.
[0025] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.
[0027] Figure 1 This is a schematic structural diagram of an electrical connector provided in one embodiment of the present application;
[0028] Figure 2 1 is a connection diagram of an electrical connector provided in one embodiment of the present application.
[0029] Reference numerals:
[0030] 10: First plug; 20: Second plug; 30: Coiled wire harness. DETAILED DESCRIPTION
[0031] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.
[0032] In the description of the present invention, it should be noted that the terms "top", "bottom", "up", "down", "left", "right", "front", "back", "inside", "outside", etc. used to indicate directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the position or component referred to must have a specific direction, a specific structure and operation. Therefore, they cannot be understood as limitations on the present invention.
[0033] When the number of sockets on the tractor's and trailer's sockets doesn't match, connecting the two vehicles becomes inconvenient, preventing consistent headlight operation. Related technologies typically combine multiple plugs, multiple sockets, and multiple coiled or connecting wire harnesses into an electrical connector to address this mismatch between the tractor's and trailer's sockets, leading to inconsistent headlight operation on the two vehicles. However, this type of electrical connector incorporates numerous components, resulting in a complex structure and increased costs.
[0034] Based on the above problems, the inventors have discovered through research that a seven-core plug, a fifteen-core plug and a spiral wiring harness can be combined into an electrical connector, wherein the plug is provided with contacts corresponding to the headlights, and the headlights corresponding to the seven-hole socket (or seven-core plug) are used as the basic headlights. The contacts in the fifteen-core plug corresponding to the basic headlights are respectively connected to the corresponding contacts of the seven-core plug through the connecting wires of the spiral wiring harness. In this way, for tractors and trailers with mismatched sockets, the use of this electrical connector can achieve the consistency of the headlight status of the two. The electrical connector only includes a seven-core plug, a fifteen-core plug and a spiral wiring harness, and has a simple structure, easy installation and low cost.
[0035] Figure 1 Schematic diagram of the structure of the electrical connector provided by an embodiment of the present application. Figure 1 As shown, the electrical connector includes: a first plug 10, a second plug 20 and a spiral harness 30. The plugs are provided with contacts corresponding to the headlights. The first plug 10 is a 15-core plug, the second plug 20 is a 7-core plug, and the spiral harness 30 includes multiple connecting wires.
[0036] Among them, the first preset light contact of the first plug 10 is connected to the second preset light contact of the second plug 20 via a first connecting line. Here, the preset light contacts correspond to multiple ones of the rear position light, the clearance light, the side marker light and the license plate light. The left turn light contact of the first plug 10 is connected to the left turn light contact of the second plug 20 via a second connecting line. The brake light contact of the first plug 10 is connected to the brake light contact of the second plug 20 via a third connecting line. The right turn light contact of the first plug 10 is connected to the right turn light contact of the second plug 20 via a fourth connecting line. The fog light contact of the first plug 10 is connected to the fog light contact of the second plug 20 via a fifth connecting line. The reverse light contact of the first plug 10 is connected to the reverse light contact of the second plug 20 via a sixth connecting line.
[0037] For example, for a currently commonly used seven-pin plug and seven-hole socket for tractors or trailers, each contact corresponds to a vehicle light. These contacts include: a second preset light contact, a left turn signal light contact, a brake light contact, a right turn signal light contact, a fog light contact, and a backup light contact. The second preset light contact corresponds to the rear position light, the clearance light, and the license plate light. The distinction between left and right rear position lights and left and right clearance lights is not made here; that is, the second preset light contact corresponds to the left rear position light, the right rear position light, the left clearance light, the right clearance light, and the license plate light.
[0038] The commonly used 15-core plug and 15-hole socket for tractors or trailers have contacts corresponding to various vehicle lights. These include the left turn signal contact, the right turn signal contact, the fog light contact, the left default light contact, the right default light contact, the brake light contact, and the reverse light contact. The left default light contact corresponds to the left rear position light, the left clearance light, the left marker light, and the license plate light, while the right default light contact corresponds to the right rear position light, the right clearance light, the right marker light, and the license plate light.
[0039] In this embodiment, the headlight corresponding to the seven-hole socket (or seven-core plug) is used as the base headlight. The contacts corresponding to the base headlight on the fifteen-core plug are connected to the corresponding contacts on the seven-core plug via the connecting wires of the spiral wiring harness 30, thereby forming an electrical connector. This electrical connector can thus ensure that the headlights of a tractor and trailer with incompatible sockets are in the same state.
[0040] That is, refer to Figure 2In the electrical connector provided in this embodiment, the spiral wiring harness includes six connecting wires, namely, a first connecting wire, a sixth connecting wire, and a first predetermined light contact of a first plug 10 (i.e., a 15-pin plug) is connected to a second predetermined light contact of a second plug 20 (i.e., a 7-pin plug) via the first connecting wire. The first predetermined light contact can correspond to the rear position light, clearance light, side marker light, and license plate light. Although the first predetermined light contact corresponds to a side marker light in addition to the vehicle light corresponding to the second predetermined light contact, this does not affect the consistency of the rear position light, clearance light, and license plate light on the tractor and trailer.
[0041] In addition, the left turn signal contact of the first plug 10 is connected to the left turn signal contact of the second plug 20 via the second connecting wire, the brake light contact of the first plug 10 is connected to the brake light contact of the second plug 20 via the third connecting wire, the right turn signal contact of the first plug 10 is connected to the right turn signal contact of the second plug 20 via the fourth connecting wire, the fog light contact of the first plug 10 is connected to the fog light contact of the second plug 20 via the fifth connecting wire, and the reverse light contact of the first plug 10 is connected to the reverse light contact of the second plug 20 via the sixth connecting wire.
[0042] Thus, for a tractor and trailer with mismatched socket numbers, the electrical connector provided in this embodiment can be used to connect the first plug 10 to the 15-hole socket of the tractor (or trailer) and the second plug 20 to the 7-hole socket of the trailer (or tractor). This allows the main lights of the tractor and trailer to be aligned. That is, when the tractor's lights are illuminated, the corresponding lights on the trailer will also illuminate through the electrical connector, thereby alerting the following vehicle, the tractor, to its driving intentions.
[0043] Furthermore, the electrical connector provided in this embodiment can also be used to detect the status of the lights on a tractor or trailer. For example, because the sockets on domestic trailers are primarily seven-hole sockets, light detection devices are typically only suitable for tractors or trailers equipped with seven-hole sockets. That is, lamp detection devices are typically equipped with seven-hole sockets. However, the electrical connector provided in this embodiment can be used to detect the status of the lights on tractors or trailers equipped with fifteen-hole sockets. Specifically, the first plug of the electrical connector provided in this embodiment connects to the fifteen-hole socket on the tractor or trailer, and the second plug connects to the seven-hole socket of the light detection device, allowing subsequent detection of the light status.
[0044] The electrical connector provided in the embodiment of the present application includes a first plug (a fifteen-core plug), a second plug (a seven-core plug) and a spiral wiring harness, and the plug is provided with contacts corresponding to the vehicle lights. The spiral wiring harness includes multiple connecting wires, among which the first preset light contact, left turn light contact, brake light contact, right turn light contact, fog light contact and reversing light contact of the first plug are respectively connected to the second preset light contact, left turn light contact, brake light contact, right turn light contact, fog light contact and reversing light contact of the second plug through the corresponding connecting wires of the spiral wiring harness. The preset light contacts correspond to multiple ones of the rear position lights, clearance lights, side marker lights and license plate lights. In this way, for a tractor and trailer with mismatched sockets, the use of the electrical connector can achieve the consistency of the vehicle light status of the two. The electrical connector only includes a seven-core plug, a fifteen-core plug and a spiral wiring harness, and has a simple structure, easy installation and low cost.
[0045] As can be seen from the foregoing, the commonly used 15-pin plug and 15-hole socket for tractors or trailers have contacts corresponding to vehicle lights, including a left and a right preset light contact. The left preset light contact corresponds to the left rear position light, left side marker light, left marker light, and license plate light, while the right preset light contact corresponds to the right rear position light, right side marker light, right marker light, and license plate light. Meanwhile, the commonly used 7-pin plug and 7-hole socket for tractors or trailers have contacts including a second preset light contact, corresponding to the left rear position light, right rear position light, left side marker light, right side marker light, and license plate light. In other words, the left and right preset light contacts on the first plug correspond to the second preset light contact on the second plug.
[0046] Therefore, the left preset lamp contact and the right preset lamp contact of the first plug can be connected, and then connected to the second preset lamp contact of the second plug via the first connecting line.
[0047] In some embodiments, reference Figure 2 Based on the previous embodiment, the left preset light contact of the first plug 10 is connected to the right preset light contact. The connected left or right preset light contact serves as the first preset light contact. The left preset light contact corresponds to the left rear position light, left clearance light, left marker light, and license plate light. The right preset light contact corresponds to the right rear position light, right clearance light, right marker light, and license plate light.
[0048] In this way, the left preset light contact of the first plug 10 is connected to the right preset light contact, and any one of the left preset light contact and the right preset light contact is taken as the first preset light contact and connected to the second preset light contact of the second plug 20, so that the rear position lights, side marker lights and license plate lights of the tractor and trailer can be matched.
[0049] In some embodiments, the plug is further provided with a contact corresponding to the common circuit of the headlight, and the common circuit contact of the first plug is connected to the common circuit contact of the second plug via a seventh connecting line. Here, the common circuit can ensure that the headlight receives a stable power supply so that it can operate normally.
[0050] In some embodiments, the cross-sectional area of the first connecting line, the second connecting line, the third connecting line, the fourth connecting line, the fifth connecting line, and the sixth connecting line is a first area, and the cross-sectional area of the seventh connecting line is a second area, wherein the first area is smaller than the second area.
[0051] For example, the first area is 1.5 square millimeters and the second area is 2.5 square millimeters. This is because the seventh connecting line is used to connect the common loop, so its area is larger.
[0052] In some embodiments, each connecting wire is provided with a first outer sheath made of a waterproof rubber material. Here, the first outer sheath can protect the corresponding connecting wire, prevent damage and influence of external substances and the environment on the connecting wire, and extend the service life of the connecting wire.
[0053] In some embodiments, the helical harness is provided with a second outer sheath made of a waterproof rubber material. This second outer sheath protects the helical harness from damage and environmental influences, thereby extending the lifespan of the helical harness. Furthermore, the first and second sheaths are resistant to aging.
[0054] In some embodiments, the first sheath of each connecting wire is a different color. To better distinguish the various contacts of the plug, the first sheath of each connecting wire can be a different color. For example, the first sheath of the first connecting wire can be black, the first sheath of the second connecting wire can be yellow, the first sheath of the third connecting wire can be red, the first sheath of the fourth connecting wire can be green, the first sheath of the fifth connecting wire can be brown, and the first sheath of the sixth connecting wire can be blue. Of course, the first sheaths of the connecting wires can also be other different colors, and this is not limited to this.
[0055] In some embodiments, the spiral harness has elastic properties. When a tractor is towing a trailer, the distance between the tractor and trailer changes as they travel. Therefore, to ensure effective connection between the sockets on the tractor and trailer, and thus ensure that the headlights on the tractor and trailer are aligned, the spiral harness should be elastic and resilient, maintaining a proper electrical connection without collapsing after multiple extensions and retractions.
[0056] In some embodiments, the pins of the plugs are connected to the contacts in a one-to-one correspondence. Here, the first plug includes fifteen pins, seven of which correspond to the seven contacts of the first plug. The second plug includes seven pins, and these seven pins correspond to the seven contacts of the second plug in a one-to-one correspondence.
[0057] In some embodiments, the spiral wiring harness in the electrical connector can be replaced with a short wiring harness, and the second plug can be replaced with a first socket, wherein the first socket is a seven-hole socket, the first socket is provided with contacts corresponding to the car lights, and the short wiring harness includes multiple connecting wires.
[0058] Referring to the connection method of the first plug, spiral wiring harness, and second plug in the aforementioned embodiment, in this embodiment, the first plug, short wiring harness, and first socket are connected to obtain a new electrical connector. That is, the spiral wiring harness in the electrical connector is replaced by the short wiring harness, and the second plug in the electrical connector is replaced by the first socket. For other connection methods, refer to the aforementioned embodiment to obtain a new electrical connector. It is known that for tractors with seven-hole sockets and trailers with seven-hole sockets, a common electrical connector comprising two seven-core plugs and a spiral wiring harness is currently commonly used. In this way, for tractors and trailers with mismatched sockets, the new electrical connector and the common electrical connector can be used to achieve consistency in the headlight status of the tractor and trailer. For example, the first plug of the new electrical connector can be connected to the 15-hole socket of the tractor (or trailer), the first socket of the new electrical connector can be connected to a seven-core plug of the common electrical connector, and the other seven-core plug of the common electrical connector can be connected to the seven-hole socket of the trailer (or tractor). To achieve consistency in the headlight status of the tractor and trailer.
[0059] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. An electrical connector, characterized in that: include: a first plug, a second plug, and a coiled wiring harness; The plug is provided with contacts corresponding to the vehicle lights, the first plug is a 15-core plug, and the second plug is a 7-core plug; the spiral wiring harness includes a plurality of connecting wires; The first preset light contact of the first plug is connected to the second preset light contact of the second plug via a first connecting line; The preset light contacts correspond to multiple ones of the rear position lights, clearance lights, side marker lights and license plate lights; The left turn signal contact of the first plug is connected to the left turn signal contact of the second plug via a second connecting line; The brake light contact of the first plug is connected to the brake light contact of the second plug via a third connecting line; The right turn signal contact of the first plug is connected to the right turn signal contact of the second plug via a fourth connecting line; The fog lamp contact of the first plug is connected to the fog lamp contact of the second plug via a fifth connecting line; The backup light contact of the first plug is connected to the backup light contact of the second plug via a sixth connecting line.
2. The electrical connector according to claim 1, wherein: The left preset light contact of the first plug is connected to the right preset light contact, and the left preset light contact or the right preset light contact serves as the first preset light contact; the left preset light contact corresponds to the left rear position light, left clearance light, left sign light and license plate light, and the right preset light contact corresponds to the right rear position light, right clearance light, right sign light and license plate light.
3. The electrical connector according to claim 1, wherein: The plug is also provided with a contact corresponding to the common circuit of the headlight; The common circuit contact of the first plug is connected to the common circuit contact of the second plug via a seventh connecting line.
4. The electrical connector according to claim 3, wherein: The cross-sectional areas of the first, second, third, fourth, fifth and sixth connecting lines are a first area, and the cross-sectional area of the seventh connecting line is a second area; wherein the first area is smaller than the second area.
5. The electrical connector according to any one of claims 1 to 4, characterized in that: The pins of the plug are connected to the contacts in a one-to-one correspondence.
6. The electrical connector according to any one of claims 1 to 4, characterized in that: Each connecting line is provided with a first outer sheath, and the material of the first outer sheath is a waterproof rubber material.
7. The electrical connector according to any one of claims 1 to 4, characterized in that: The first outer sheaths of the connecting wires are different in color.
8. The electrical connector according to any one of claims 1 to 4, characterized in that: The spiral wire bundle has telescopic elasticity.
9. The electrical connector according to any one of claims 1 to 4, characterized in that: The spiral wire harness is provided with a second outer sheath, and the material of the second outer sheath is a waterproof rubber material.
10. The electrical connector according to claim 4, wherein: The first area is 1.5 square millimeters, and the second area is 2.5 square millimeters.