Quick-connect fitting for power supply, headrest assembly and motor vehicle

Abstract

Quick-connect power supply connector, characterized in that it includes: a first wiring harness; a second wiring harness; a connector component, wherein one end of the first cable harness is arranged on the connector component, the connector component comprising a first connector part, a second connector part, a first power connector and a power transmission element, wherein the first power connector is attached to the first connector part, wherein the power transmission element is arranged in the second connector part, wherein one end of the power transmission element is pluggably connected to the first power connector and the other end is connected to the first cable harness, wherein the first power connector and the power transmission element can be placed in a plugged-in state by connecting the first and second connector parts; a second power connection, wherein one end of the second wiring harness is connected to the second power connection and the first power connection is movably adjacent to the second power connection; where the first wiring harness and the second wiring harness are due to the concern of the first and the second power connection can be put into a conductive state and, due to the separation of the first and second power connections, can enter a separate state.

Description

TECHNICAL AREA

[0001] The present utility model relates to the technical field of power supply structures, in particular a quick-connect power supply unit, a headrest assembly and a motor vehicle. STATE OF THE ART

[0002] With the widespread use of electrical devices in industrial production and daily life, the demands on power supply methods are becoming increasingly diverse in terms of convenience, speed, and safety. A wide variety of electrical devices and systems are ubiquitous in sectors such as manufacturing, transportation, information technology, and home life. These devices are not only numerous and diverse, but also range from large industrial machines to portable electronic devices, all of which rely on a stable and efficient power supply. Therefore, developing more convenient, faster, and safer methods for disconnecting and connecting power is becoming a crucial research area that engineers must actively address. CONTENTS OF THE PRESENT USE SAMPLE

[0003] The technical problem of the present invention is to provide, in view of the prior art, a quick-connect power supply unit, a headrest assembly and a motor vehicle.

[0004] To solve the aforementioned technical problem, a quick-connect power supply is proposed, comprising: a first wiring harness; a second wiring harness; a connector component, wherein one end of the first cable harness is arranged on the connector component, the connector component comprising a first connector part, a second connector part, a first power connector and a power transmission element, wherein the first power connector is attached to the first connector part, wherein the power transmission element is arranged in the second connector part, wherein one end of the power transmission element is pluggably connected to the first power connector and the other end is connected to the first cable harness, wherein the first power connector and the power transmission element can be placed in a plugged-in state by connecting the first and second connector parts; a second power connection, wherein one end of the second wiring harness is connected to the second power connection and the first power connection is movably adjacent to the second power connection; wherein the first cable harness and the second cable harness are placed in a conductive state due to the connection of the first and second power connections and can be placed in a separated state due to the separation of the first and second power connections.

[0005] In the aforementioned quick-connect power supply connector, a first plug-in opening is provided at one end of the power transmission element, with one end of the first cable harness being inserted into the first plug-in opening and fixed by crimping.

[0006] In the quick-connect power supply described above, a second plug-in opening is provided at one end of the second power connector, whereby the second cable harness is inserted into the first plug-in opening and fixed by crimping.

[0007] In the aforementioned quick-connect power supply connector, a third plug-in opening is arranged at the end of the power transmission element facing away from the first cable harness, with one end of the first power connector being plugged into the third plug-in opening.

[0008] According to the aforementioned quick-connect power supply, the connector component also includes: a limiting element, wherein a cavity is formed in the second connecting part, wherein the limiting element and the current transmission element are both arranged in the cavity, and the limiting element serves to position the current transmission element in the cavity; a connecting block which is arranged in the cavity and is formed integrally with the second connecting part, wherein a continuous fourth plug-in opening is provided on the connecting block, wherein one end of the first power connection, which is facing away from the first cable harness, is plugged into the fourth plug-in opening and is in plug connection with the second power connection.

[0009] The aforementioned quick-connect power supply connector also features an inverted snap-fit ​​connection on the connection block. A T-shaped structure is formed at one end of the limiting element, the wider part of which is pressed against the inverted snap-fit ​​connection. This allows the power transmission element to be fixed in the cavity by pressing the wider part against the inverted snap-fit ​​connection.

[0010] In the aforementioned quick-connect power supply, an additional connection section is provided on the first connection part, whereby the outer side wall of the second connection part is pressed against the connection section.

[0011] In the aforementioned quick-connect power supply connector, a positioning projection is provided on the outer side wall of the second connector part, while a positioning groove is formed on the connector section, with the positioning projection snapping into the positioning groove to position the connection between the first and second connector parts.

[0012] To solve the aforementioned technical problem, a headrest assembly is also proposed which includes the quick-connect power supply described above. a power-consuming device that is installed in a headrest; a headrest support provided on the headrest, wherein the second connecting part is provided in the headrest support, the first wiring harness is routed through the headrest support and is electrically connected to the power-consuming device; wherein a first locking groove is provided on the headrest support and a second locking groove is provided on the first connecting part, wherein the first locking groove and the second locking groove are arranged in the same axial position, and a snap ring is engaged in the first locking groove and the second locking groove to fix the first connecting part to the headrest support; and a guide sleeve which is fixedly arranged on a seat, wherein one end of the headrest support is inserted into the guide sleeve and the second electrical connection is attached to the guide sleeve.

[0013] The first power connector can be electrically linked to the second power connector by inserting the headrest support into the guide sleeve, thus connecting the first wiring harness to the second. Conversely, removing the headrest support from the guide sleeve disconnects the first power connector from the second, ensuring the headrest and seat remain separate.

[0014] Furthermore, to solve the aforementioned technical problem, a motor vehicle is proposed which includes the headrest arrangement described above.

[0015] Compared to the state of the art, the quick-connect power supply connection according to the utility model has the following advantages: (1) By docking the first connector and the second connector, a precise plug connection is achieved between the first power terminals on the first connector and the power transmission elements in the second connector, thereby ensuring a reliable electrical connection between the first and second power terminals of the first wiring harness. The first and second power terminals are in contact, allowing current to flow between the first and second wiring harnesses. During the disconnection process, the first and second power terminals are separated, immediately interrupting the current path between the first and second wiring harnesses and placing the entire circuit in a safe off state.Furthermore, the first and second connection parts are further separated, resulting in the disconnection of the first power connection from the power transmission elements and ensuring that all electrical connections are completely isolated. This detachable connection method allows for coupling and uncoupling without special tools or personnel, saving considerable time and labor and offering a user-friendly, fast, and safe operating mode that provides significant advantages for future maintenance and inspection. (2) Crimping secures the first and second wiring harnesses to the power transmission element and the second power terminal, respectively, which not only simplifies the manufacturing process but also avoids the problem of soldering defects, thereby improving the reliability of the electrical connection and the overall quality; (3) When applied to a headrest assembly, the first and second connectors are plugged together, creating a stable electrical connection between the first wiring harness and the first power connector. The combination of the first and second connectors is attached to the headrest support, while the second power connector is attached to the guide sleeve. When the headrest support is inserted into the guide sleeve, the first and second power connectors connect electrically to supply power to the power-consuming device. When the headrest is removed from the seat, the connection between the first and second power connectors is broken, ensuring that the disassembly process does not affect the function of the headrest. BRIEF DESCRIPTION OF THE DRAWING Fig. Figure 1 is a perspective representation of this solution; Fig. Figure 2 is a perspective view of part of the structure of Fig. 1, in which the guide sleeve is concealed; Fig. 3 is a top view of part of the structure of Fig. 2. Fig. 4 is the AA cut in Fig. 3. Fig. Figure 5 is a perspective view of the connector component and the headrest support according to this solution. Fig. Figure 6 is a perspective view of part of the structure in Fig. 5; and Fig. Figure 7 shows a perspective view of the second connecting part in this solution. Reference symbol list:

[0016] 1. First wiring harness; 2. Second wiring harness; 3. Connector component; 4. First connector; 5. Second connector; 6. First power connector; 7. Power transmission element; 8. Second power connector; 9. Third connector opening; 10. Limiting element; 11. Connecting block; 12. Fourth connector opening; 13. Reverse snap connector; 14. T-shaped structure; 15. Connecting section; 16. Positioning projection; 17. Positioning groove; 18. Headrest support; 19. First locking groove; 20. Second locking groove; 21. Snap ring; 22. Guide sleeve. DETAILED DESCRIPTION

[0017] Specific embodiments of the present utility model invention are described below with reference to the accompanying drawings in order to further explain the technical solution of the present invention. However, the present utility model invention is not limited to these embodiments.

[0018] As in the Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6 to Fig.Figure 7 shows a quick-connect fitting of the utility model comprising: a first cable harness 1; a second cable harness 2; a connector component 3, wherein one end of the first cable harness 1 is arranged on the connector component 3, the connector component 3 comprising a first connecting part 4, a second connecting part 5, a first power connector 6 and a power transmission element 7, wherein the first power connector 6 is attached to the first connecting part 4, the power transmission element 7 being arranged in the second connecting part 5, wherein one end of the power transmission element 7 is pluggably connected to the first power connector 6 and the other end is connected to the first cable harness 1, wherein the first power connector 6 and the power transmission element 7 can be placed in a plugged-in state by connecting the first connecting part 4 and the second connecting part 5;a second power connection 8, wherein one end of the second cable harness 2 is connected to the second power connection 8 and the first power connection 6 is movably adjacent to the second power connection 8; wherein the first cable harness 1 and the second cable harness 2 are placed in a conductive state due to the proximity of the first power connection 6 and the second power connection 8 and can be placed in a separate state due to the separation of the first power connection 6 and the second power connection 8.

[0019] To ensure a reliable electrical connection between the first power terminal 6 and the first wiring harness 1, only the first connecting part 4 and the second connecting part 5 need to be connected. The power transmission element 7 located in the second connecting part 5 then precisely engages with the first power terminal 6, which is permanently attached to the first connecting part 4. This establishes a reliable electrical connection between the first wiring harness 1, via the power transmission element 7, and the first power terminal 6. This not only provides a solid foundation for the proper operation of the downstream circuitry but also ensures the safety and efficiency of the power transmission.When the first power terminal 6 and the second power terminal 8 come into contact, a stable electrical connection is established between them, enabling current flow between the first wiring harness 1 and the second wiring harness 2. Conversely, during the disconnection process, the operator simply needs to disconnect the first power terminal 6 and the second power terminal 8 from each other, immediately interrupting the current path between the first wiring harness 1 and the second wiring harness 2 and placing the entire circuit in a safe off state. Further disconnection of the first connecting part 4 and the second connecting part 5 disconnects the first power terminal 6 from the power transmission element 7, ensuring that all electrical connections are completely severed.This detachable connection method allows for coupling and uncoupling without special tools or personnel, saving considerable time and effort and offering a user-friendly, fast, and safe operation that provides significant advantages for future maintenance and inspection. The first power connection element 6, the second power connection element 8, and the power transmission element 7 can be made of copper or other materials with good electrical conductivity to ensure good electrical performance. The first power connection element 6 is attached to the first connection element 4 by injection molding with plastic.

[0020] To achieve a reliable connection between the power transmission element 7 and the first cable harness 1, a first plug-in opening is provided at one end of the power transmission element 7, with one end of the first cable harness 1 being inserted into the first plug-in opening and fixed by crimping.

[0021] Crimping as a fastening method is a mechanical joining technique that uses pressure to plastically deform the metal material, thus firmly joining two components. Welding is a common electrical joining method, but it suffers from the problem of cold solder joints. Cold solder joints can lead to poor contact, increased resistance, and even circuit malfunctions. In comparison, crimping avoids these problems that can occur during the welding process. Because crimping does not involve a metal melting process, no pores or inclusions are formed, thus improving the overall quality and reliability of the electrical connection.

[0022] To achieve a reliable connection between the second power connector 8 and the second cable harness 2, a second plug opening is provided at one end of the second power connector 8. One end of the second cable harness 2 is inserted into this second plug opening and secured by crimping. The crimp connection ensures the stability and durability of the connection and avoids the risk of faulty soldering, thereby improving the quality of the overall electrical connection.

[0023] To further increase the connection stability between the first power connector 6 and the power transmission element 7, a third plug opening 9 is provided at the end of the power transmission element 7 facing away from the first cable harness 1. One end of the first power connector 6 is inserted into the third plug opening 9. When the first connection part 4 is connected to the second connection part 5, one end of the first power connector 6 is inserted into the third plug opening 9, thus establishing the electrical connection between the first power connector 6 and the first cable harness 1. The third plug opening 9 not only provides a precise alignment position for the first power connector 6, but also, through its internal geometry and dimensional optimization, ensures a secure fit between the first power connector 6 and the power transmission element 7.

[0024] The connector component 3 further comprises: a limiting element 10, wherein a cavity is formed in the second connecting part 5, the limiting element 10 and the power transmission element 7 are both arranged in the cavity, and the limiting element 10 serves to position the power transmission element 7 in the cavity; a connecting block 11, which is arranged in the cavity and is formed integrally with the second connecting part 5, wherein a through fourth plug-in opening 12 is provided on the connecting block 11, wherein one end of the power transmission element 7, which faces away from the first cable harness 1, is inserted into the fourth plug-in opening 12 and is in plug connection with the first power terminal 6. To securely fasten the limiting element 10 in the cavity, an additional reverse snap connection 13 is provided on the connecting block 11.A T-shaped structure 14 is attached to one end of the limiting element 10, with the wider part of the T-shaped structure 14 being pressed against the inverted snap connection 13. This allows the power transmission element 7 to be fixed in the cavity by pressing the wider part of the T-shaped structure 14 against the snap connection 13. The interaction of the T-shaped structure 14 and the inverted snap connection 13 not only ensures the fixing of the limiting element 10 in the cavity, but also guarantees the stable position of the power transmission element 7. This dual fixing mechanism significantly increases the mechanical strength of the entire assembly and ensures reliable operation even under vibration or shock loads.Furthermore, the close contact between the wide part of the T-shaped structure 10 and the reverse snap connection 13 prevents loosening and thus avoids connection problems that could be caused by external influences.

[0025] To ensure a stable and reliable connection between the first connecting part 4 and the second connecting part 5, a connecting section 15 is specifically formed on the first connecting part 4, wherein the shape and dimensions of the connecting section 15 are precisely calculated to ensure a perfect fit to the outer side wall of the second connecting part 5; and wherein, when connecting the first connecting part 4 with the second connecting part 5, the outer side wall of the second connecting part 5 rests tightly against the connecting section 15 on the first connecting part 4.

[0026] To ensure precise and error-free positioning of the first connecting part 4 and the second connecting part 5 during their assembly, a positioning projection 16 is formed on the outer side wall of the second connecting part 5, and a corresponding positioning groove 17 is formed on the connecting section 15 of the first connecting part 4. When the first connecting part 4 and the second connecting part 5 are joined, the positioning projection 16 engages precisely in the positioning groove 17 of the connecting section 15, thereby achieving precise mutual positioning.

[0027] Assembly steps for the plug connector component 3: Step 1: Insert the first cable harness 1 into the first plug opening of the power transmission element 7 and secure it by crimping; Step 2: Insert the power transmission element 7 with the end furthest from the first cable harness 1 into the fourth plug opening 12 on the connecting block 11, thereby giving the power transmission element 7 a preliminary position in the cavity; Step 3: Inserting the limiting element 10 into the cavity, abutting the outer side wall of the limiting element 10 against the inner side wall of the current transmission element 7, advancing the limiting element 10 until the wide part of the T-shaped structure 14 of the limiting element 10 comes into contact with the reverse snap connection 13 of the connecting block 11, applying adequate pressure to achieve a tight snap-in of the wide part of the T-shaped structure 14 with the reverse snap connection 13, thereby securing the limiting element 10 and ensuring a stable position of the current transmission element 7 in the cavity; Step 4: Dock the first connecting part 4 and the second connecting part 5 so that the outer side wall of the second connecting part 5 rests against the connecting section 15 on the first connecting part 4, continue docking them together until the positioning projection 16 on the second connecting part 5 engages in the positioning groove 17 on the first connecting part 4, thereby completing the fastening of the two, with one end of the first power connector 6 being inserted into the third plug hole 9 on the power transmission element 7.

[0028] After completing the above steps, the connector component 3 is assembled, with the first power terminal 6 attached to the first connection part 4 and the power transmission element 7 located in the second connection part 5 being plugged together, ensuring that a reliable electrical connection is established between the first power terminal 6 and the first cable harness 1, providing a solid basis for the normal operation of the subsequent circuit, allowing the current to be transferred smoothly from the first cable harness 1 to the first power terminal 6, and when the first power terminal 6 comes into contact with the second power terminal 8, the connection between the first cable harness 1 and the second cable harness 2 is established, thus ensuring the safety and efficiency of the power transmission.

[0029] The present solution also provides a headrest assembly comprising: the aforementioned quick-connect power supply; a power-consuming device arranged in a headrest; a headrest support 18 provided on the headrest, wherein the second connecting part 5 is provided in the headrest support 18, the first wiring harness 1 is routed through the headrest support 18 and is electrically connected to the power-consuming device; a first locking groove 19 is provided on the headrest support 18, and a second locking groove 20 is provided on the first connecting part 4, wherein the first locking groove 19 and the second locking groove 20 are arranged in the same axial position, and a snap ring 21 is engaged in the first locking groove 19 and the second locking groove 20 to fix the first connecting part 4 to the headrest support 18;The guide sleeve 22, which is fixedly arranged on a seat, wherein one end of the headrest support rod 18 is inserted into the guide sleeve 22 and the second electrical connection 8 is attached to the guide sleeve 22, wherein the second electrical connection 8 can be fixed to the guide sleeve 22 by injection molding or welding. Assembly steps of the plug-in component 3 on the headrest bracket 18: First, the first connecting part 4 is placed in a plugged-in position with the second connecting part 5 to ensure a stable electrical connection between the power transmission element 7 and the first electrical connection 6;The already connected unit, consisting of the first connecting part 4 and the second connecting part 5, is then placed onto the headrest support 18 until the second locking groove 20 on the first connecting part 4 and the first locking groove 19 on the headrest support 18 are aligned on the same axis. The snap ring 21 then secures the firm connection of the second connecting part 5 to the headrest support 18, thus completing the entire fastening process.

[0030] When the headrest support 18 is inserted into the guide sleeve 22, the first power connector 6 gradually approaches the second power connector 8 as the insertion depth increases. Once the first power connector 6 and the second power connector 8 make contact and establish an electrical connection, the first wiring harness 1 and the second wiring harness 2 are connected, ensuring that power can be transferred efficiently and without loss to the power-consuming device, such as built-in heating elements, massage devices, or other electronic equipment. Conversely, when the headrest needs to be detached from the seat, the first power connector 6 and the second power connector 8 move away from each other as the headrest support 18 is pulled out of the guide sleeve 22.Separating the two reliably interrupts the circuit between the first cable harness 1 and the second cable harness 2 to prevent unintentional current flow. This design ensures that the circuit can be safely shut off in the event of an emergency evacuation or during routine maintenance, protecting users from electric shock and preventing short circuits or fire hazards caused by unintentional current flow.

[0031] The present utility model also relates to a motor vehicle that includes the headrest assembly described above.

[0032] It should be noted that all directional terms in the embodiments of this utility model application (such as above, below, left, right, front, back, etc.) serve only to explain the relative positions and movements between the individual components in a specific orientation (as shown in the drawings). If this specific orientation is changed, the directional terms change accordingly.

[0033] Furthermore, if terms such as "first," "second," or "one," etc., are used in this utility model, such descriptions serve only descriptive purposes and cannot be understood as indicating or suggesting relative importance or implicitly defining the number of technical features shown. Therefore, features limited by "first" or "second" may expressly or implicitly include at least that feature. In the description of this utility model, "several" means at least two, for example, two, three, etc., unless otherwise clearly and specifically limited.

[0034] According to the utility model, unless expressly specified and defined otherwise, the terms "connect" and "fasten," etc., are to be understood broadly. For example, "fasten" can mean a permanent connection, a detachable connection, or an integral design; it can be a mechanical connection or an electrical connection; the connection can be direct or indirect via an intermediate medium; it can denote the internal continuity between two components or the interaction between two components, unless expressly defined otherwise. For a person skilled in the art, the specific meanings of the aforementioned terms in the utility model can be understood according to the specific circumstances.

[0035] Furthermore, the technical solutions of the various embodiments of this utility model can be combined. However, this requires that a person skilled in the relevant field can implement the combination. If the combination of technical solutions results in contradictions or is not feasible, it must be assumed that such a combination of technical solutions does not exist and is not within the scope of protection of this utility model.

[0036] Specific embodiments described in this document serve only to illustrate the spirit of the utility model. Those skilled in the art in the technical field to which the utility model belongs may make various modifications or additions to the described specific embodiments or apply similar methods of substitution, without, however, deviating from the scope defined by the spirit of the utility model.

Claims

Quick-connect power supply connector, characterized in that it comprises: a first cable harness; a second cable harness; a connector component, wherein one end of the first cable harness is arranged on the connector component, the connector component comprising a first connection part, a second connection part, a first power connector and a power transmission element, wherein the first power connector is attached to the first connection part, wherein the power transmission element is arranged in the second connection part, wherein one end of the power transmission element is pluggably connected to the first power connector and the other end is connected to the first cable harness, wherein the first power connector and the power transmission element can be placed in a plugged-in state by connecting the first and the second connection part;a second electrical connection, wherein one end of the second wiring harness is connected to the second electrical connection and the first electrical connection is movably adjacent to the second electrical connection; wherein the first wiring harness and the second wiring harness are placed in a conductive state due to the proximity of the first and the second electrical connections and can be placed in a separate state due to the separation of the first and the second electrical connections. Quick-connect fitting for power supply according to claim 1, characterized in that a first plug-in opening is provided at one end of the power transmission element, wherein one end of the first cable harness is inserted into the first plug-in opening and fixed by crimping. Quick-connect fitting for the power supply according to claim 1, characterized in that a second plug-in opening is provided at one end of the second power connection, wherein the second cable harness is inserted into the first plug-in opening and fixed by crimping. Quick-connect plug-in connector for the power supply according to claim 2, characterized in that a third plug-in opening is arranged at the end of the power transmission element which is facing away from the first cable harness, wherein an end of the first power connection is plugged into the third plug-in opening. Quick-connect power supply connector according to claim 1, characterized in that the connector component further comprises: a limiting element, wherein a cavity is formed in the second connecting part, wherein the limiting element and the power transmission element are both arranged in the cavity, and the limiting element serves to position the power transmission element in the cavity; and a connecting block, which is arranged in the cavity and is formed integrally with the second connecting part, wherein a through fourth plug-in opening is provided on the connecting block, wherein an end of the first power connection, which is facing away from the first cable harness, is inserted into the fourth plug-in opening and is in plug-in connection with the second power connection. Quick-connect fitting for power supply according to claim 5, characterized in that an inverted snap connection is also attached to the connection block, wherein a T-shaped structure is formed at one end of the limiting element, the wide part of which is pressed against the inverted snap connection, wherein the power transmission element can be fixed in the cavity due to the pressing of the wide part against the inverted snap connection. Quick-connect fitting for power supply according to claim 1, characterized in that a connecting section is additionally provided on the first connecting part, wherein the outer side wall of the second connecting part is pressed against the connecting section. Quick-connect power supply connection according to claim 7, characterized in that a positioning projection is provided on the outer side wall of the second connection part, while a positioning groove is formed on the connection section, wherein the positioning projection engages in the positioning groove to position the connection between the first and the second connection part. Headrest assembly, characterized in that it comprises: a quick-connect power supply according to any one of claims 1 to 8; a power-consuming device arranged in a headrest; a headrest support provided on the headrest, wherein the second connecting part is provided in the headrest support, the first cable harness is routed through the headrest support and is electrically connected to the power-consuming device; wherein a first locking groove is provided on the headrest support and a second locking groove is provided on the first connecting part, wherein the first locking groove and the second locking groove are arranged in the same axial position, and a snap ring is engaged in the first locking groove and the second locking groove to fix the first connecting part to the headrest support;and a guide sleeve fixed to a seat, wherein one end of the headrest support is inserted into the guide sleeve and the second electrical connector is attached to the guide sleeve, wherein the first electrical connector can be electrically connected to the second electrical connector due to the insertion of the headrest support into the guide sleeve in order to connect the first wiring harness to the second wiring harness, and wherein the first electrical connector is disconnected from the second electrical connector due to the removal of the headrest support from the guide sleeve, thereby not affecting the separation of the headrest and the seat. Motor vehicle, characterized in that it comprises a headrest assembly according to claim 9.

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