Terminal resistor, wire harness assembly and vehicle

Abstract

The utility model provides a terminal resistor. The terminal resistor comprises a resistor, a conductive terminal, a shell and a waterproof connecting plug, the resistor comprises two pins positioned at two opposite ends of the resistor; the two conductive terminals are respectively connected to the end parts of the two pins, one conductive terminal is led out towards a first direction, the other conductive terminal is led out towards a second direction, and the first direction is opposite to the second direction; the resistor and the conductive terminals are sleeved with the shell, plugging grooves are formed in the two opposite end faces of the shell respectively, the end, away from the resistor, of one conductive terminal extends to the corresponding plugging groove, and the end, away from the resistor, of the other conductive terminal extends to the corresponding plugging groove; the two waterproof connecting plugs are respectively plugged in the two plugging grooves of the housing in a sealed manner. The utility model further provides a wire harness assembly provided with the terminal resistor and a vehicle.

Description

Technical Field

[0001] The utility model relates to the field of current connection equipment, in particular to a terminal resistor, a wiring harness component provided with the terminal resistor, and a vehicle provided with the wiring harness component. Background Art

[0002] With the rapid development of automobile intelligence, there are more and more electronic components in automobiles, and there are a lot of signals in the circuit, which are very easy to be reflected back when transmitted to the terminal, thereby interfering with data transmission. Therefore, automobiles will add terminal resistance at the transmission terminal to eliminate signal interference. Conventional terminal resistors are arranged inside the controller. Considering the wiring, the terminal resistors are generally moved to the front cabin, so the terminal resistors need to be waterproof. In the prior art, a waterproof protective cover is generally provided on the outer jacket of the terminal resistor to waterproof the terminal resistor. However, the existing waterproof protective cover is relatively large in size, which makes the cross-section of the wiring harness wrapping the terminal resistor and the cable larger, resulting in a larger bulge at the position of the wiring harness corresponding to the terminal resistor, which occupies a larger space. Utility Model Content

[0003] The present application provides a terminal resistor, a wiring harness assembly provided with the terminal resistor, and a vehicle provided with the wiring harness assembly.

[0004] The present application provides a terminal resistor, which includes a resistor, a conductive terminal, a shell and a waterproof plug connector; the resistor includes two pins located at opposite ends thereof; the two conductive terminals are respectively connected to the ends of the two pins, wherein one conductive terminal is led out in a first direction, and the other conductive terminal is led out in a second direction, and the first direction is opposite to the second direction; the shell is sleeved on the resistor and the conductive terminals, and plug-in slots are respectively provided at opposite ends of the shell, wherein one conductive terminal extends from one end of the resistor to the corresponding plug-in slot, and the other conductive terminal extends from one end of the resistor to the corresponding plug-in slot; the two waterproof plug connectors are respectively plugged into the two plug-in slots of the shell.

[0005] In some embodiments, a sealing ring is provided between the outer circumference of the waterproof plug connector and the inner circumference of the corresponding plug slot, and the sealing ring is provided on the outer circumference of the waterproof plug connector or the inner circumference of the plug slot.

[0006] In some embodiments, the waterproof plug connector and the shell are detachably connected through the cooperation of a snap-fit ​​portion and a snap-fit ​​hole, the snap-fit ​​portion is provided on one of the waterproof plug connector and the shell, and the snap-fit ​​hole is provided on the other of the waterproof plug connector and the shell.

[0007] In some embodiments, the end surface of the waterproof plug connector at the same end of the terminal resistor facing away from the resistor is coplanar with the end surface of the housing.

[0008] In some embodiments, the housing is cylindrical, and the center line of the pin, the center line of the conductive terminal, and the axis of the housing are collinear.

[0009] In some embodiments, the resistor and the two conductive terminals are all disposed within the housing.

[0010] In some embodiments, the waterproof plug connector is provided with a positioning groove along its insertion direction, and the positioning groove is used to seal and position the wiring harness, and the opposite ends of the positioning groove respectively pass through the opposite end surfaces of the waterproof plug connector; when the waterproof plug connector is plugged into the corresponding plug-in slot, the positioning groove faces the conductive terminal so that the conductive terminal is electrically connected to the wiring harness.

[0011] In some embodiments, the positioning groove includes a positioning hole located at one end of the waterproof plug connector, and a waterproof hole, the positioning hole is a rectangular hole, the waterproof hole is a circular hole, the waterproof hole is located at one end of the positioning hole away from the resistor, and the waterproof hole is connected to the positioning hole.

[0012] In some embodiments, a diameter of the waterproof hole gradually increases from an end close to the resistor toward a direction away from the resistor.

[0013] In some embodiments, when the waterproof plug connector is inserted into the corresponding plug slot, a gap is formed between the end surface of the waterproof plug connector facing the resistor and the inner end surface of the plug slot, and one end of the conductive terminal away from the resistor is accommodated in the gap.

[0014] The present application also provides a wiring harness assembly, which includes a terminal resistor and two wiring harnesses, the terminal resistor includes a resistor, a conductive terminal, a shell and a waterproof plug connector; the resistor includes two pins located at opposite ends thereof; the two conductive terminals are respectively connected to the ends of the two pins, wherein one conductive terminal is led out in a first direction, and the other conductive terminal is led out in a second direction, and the first direction is opposite to the second direction; the shell is sleeved on the resistor and the conductive terminals, and the opposite end surfaces of the shell are respectively provided with plug-in slots, wherein one conductive terminal extends from one end of the resistor to the corresponding plug-in slot, and the other conductive terminal extends from one end of the resistor to the corresponding plug-in slot; the two waterproof plug connectors are respectively plugged into the two plug-in slots of the shell; the wiring harness includes a cable and a connector connected to the end of the cable, the two connectors are respectively sealed and connected to the two waterproof plug connectors, and the two connectors are respectively electrically connected to the two conductive terminals.

[0015] In some embodiments, the connector includes a plug-in portion and a sealing portion located at opposite ends thereof, the cable is electrically connected to the plug-in portion, the sealing portion is sealingly sleeved on the cable, the plug-in portion is electrically connected to the corresponding conductive terminal, and the sealing portion is sealingly plugged into the positioning groove of the waterproof plug connector.

[0016] In some embodiments, the sealing portion is sealingly positioned in the waterproof hole of the positioning through groove, and one end of the resistor of the plug-in portion away from the terminal resistor is positioned in the positioning hole of the positioning through groove.

[0017] In some embodiments, the plug-in portion includes a positioning block and a pair of clamping plates, the pair of clamping plates are connected to one end of the positioning block away from the sealing portion, the pair of clamping plates are used to clamp corresponding conductive terminals, and the positioning block is positioned in the positioning hole.

[0018] In some embodiments, the plug-in portion further includes an undercut provided on a side surface of the positioning block, and the undercut stops at an end surface of the waterproof plug connector to prevent the wiring harness from detaching from the waterproof plug connector.

[0019] In some embodiments, the plug-in portion further includes a connecting portion connected between the positioning block and the sealing portion, the connecting portion includes a positioning piece, and the positioning piece is positioned in the positioning hole.

[0020] In some embodiments, it also includes a cable and an outer sheath, the outer sheath wraps the cable and the terminal resistor, and the axis of the cable is parallel to the length direction of the terminal resistor.

[0021] The present application also provides a vehicle, which includes a wiring harness assembly.

[0022] One of the conductive terminals of the terminal resistor in the utility model is led out in a first direction, and the other conductive terminal is led out in a second direction, the first direction is opposite to the second direction, and the outer shell is sleeved on the resistor and the conductive terminal, so that the terminal resistor is in a strip shape as a whole, and the radial dimension of the terminal resistor is relatively small; plug-in slots are respectively provided at the opposite ends of the outer shell, and two waterproof plug connectors are respectively plugged into the two plug-in slots. Therefore, the waterproof plug connector occupies a small space of the outer shell, and when a wiring harness wrapping sleeve is used for the terminal resistor and the cable, the wiring harness wrapping sleeve has only a small bulge at the position corresponding to the terminal resistor, which occupies a small space, avoids the cable from getting stuck during movement, is easy to install, and is conducive to improving installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the following is a brief introduction to the drawings required for use in the implementation. Obviously, the drawings described below are some implementations of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 is a schematic diagram of the three-dimensional structure of a wiring harness assembly in one embodiment of the present application;

[0025] Figure 2 yes Figure 1 A schematic diagram of the three-dimensional structure of the wiring harness assembly;

[0026] Figure 3 yes Figure 2 A magnified view of the three-dimensional structure of the resistor and the conductive terminal;

[0027] Figure 4 yes Figure 3 A schematic diagram of the side structure of the resistor and the conductive terminal;

[0028] Figure 5 yes Figure 2 A schematic diagram of the three-dimensional structure of the housing of the wiring harness assembly;

[0029] Figure 6 yes Figure 5 A cross-sectional view of a housing in FIG.

[0030] Figure 7 yes Figure 5 Another cross-sectional view of the housing in FIG.

[0031] Figure 8 yes Figure 2 A schematic diagram of the three-dimensional structure of the housing, resistor and conductive terminal after assembly;

[0032] Fig. 9 yes Figure 8 A cross-sectional view of the housing, resistor and conductive terminals;

[0033] Fig.10 yes Figure 2 A schematic diagram of the three-dimensional structure of one of the waterproof plug connectors;

[0034] Fig.11 yes Fig.10 A three-dimensional structural schematic diagram of the waterproof plug connector from another perspective;

[0035] Fig.12 yes Fig.10 A schematic diagram of the side structure of the waterproof plug connector;

[0036] Fig.13 yes Fig.10 One of the cross-sectional views of the waterproof plug connector;

[0037] Fig.14 yes Figure 2 Schematic diagram of the three-dimensional structure of the terminal resistor;

[0038] Fig.15 yes Fig.14 A cross-sectional view of the terminal resistor in FIG.

[0039] Fig.16 yes Figure 2 A magnified view of the three-dimensional structure of one of the wire bundles;

[0040] Fig.17 yes Fig.16 A schematic diagram of a three-dimensional structure of the wiring harness from another perspective;

[0041] Fig.18 yes Figure 1 One of the cross-sectional views of the wiring harness assembly in FIG.

[0042] Fig.19 yes Figure 1 A cross-sectional view of the wiring harness assembly and cables after being wrapped in an outer sheath.

[0043] Main markings:

[0044] 100, wiring harness assembly; 20, terminal resistor; 21, resistor; 212, pin; 214, resistor body; 23, conductive terminal; 232, connecting strip; 234, plug strip; 25, housing; 251, plug slot; 2512, plug section; 2514, sealing section; 252, snap-fit ​​hole; 253, accommodating space; 254, first accommodating slot; 255, second accommodating slot; 256, interval; 27, waterproof plug connector; 271, sealing ring; 272, snap-fit ​​portion; 2722, guide surface; 2724, Locking surface; 273, chamfer; 274, positioning groove; 2742, positioning hole; 2744, avoidance hole; 2745, waterproof hole; 40, wiring harness; 41, cable; 43, connector; 44, plug-in portion; 442, positioning block; 4424, plug-in hole; 444, clamping piece; 4442, first conductive clamping section; 4444, second conductive clamping section; 4445, spring piece; 445, undercut; 446, connecting portion; 4462, positioning piece; 45, sealing portion; 110, cable; 120, outer sheath. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0046] In addition, the following descriptions of the various embodiments are made with reference to the attached drawings to illustrate specific embodiments that the present application may be implemented in. Directional terms mentioned in the present application, such as "upper", "lower", "front", "back", "left", "right", "inner", "outer", "side", etc., are only with reference to the directions of the attached drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the present application, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0047] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set on..." should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0048] Please also read Figures 1 to 7The wiring harness assembly 100 in one embodiment of the present invention is used for a vehicle-mounted CAN communication device of a vehicle. The wiring harness assembly 100 includes a terminal resistor 20 and two wiring harnesses 40, and the two wiring harnesses 40 are respectively connected to the opposite ends of the terminal resistor 20; the terminal resistor 20 includes a resistor 21, a conductive terminal 23, a shell 25 and a waterproof plug connector 27; the resistor 21 includes two pins 212 and a resistor body 214 located at opposite ends thereof, wherein one pin 212 is connected to one end of the resistor body 214, and the other pin 212 is connected to the other end of the resistor body 214; wherein one conductive terminal 23 is led out in a first direction, and the other conductive terminal 23 is led out in a second direction, and the first direction is opposite to the second direction; that is, One pin 212 and the corresponding conductive terminal 23 are arranged along the first direction, and the other pin 212 and the corresponding conductive terminal 23 are arranged along the second direction; preferably, the two conductive terminals 23 are respectively connected to the ends of the two pins 212, and the two pins 212, the resistor body 214 and the two conductive terminals are arranged in a straight line; the housing 25 is sleeved on the resistor 21 and the conductive terminal 23, and the opposite ends of the housing 25 are respectively provided with plug-in slots 251, wherein one end of the conductive terminal 23 away from the resistor 21 extends to the corresponding plug-in slot 251, and the other end of the conductive terminal 23 away from the resistor 21 extends to the corresponding plug-in slot 251; the two waterproof plug connectors 27 are respectively sealed and plugged into the two plug-in slots 251 of the housing 25. The wiring harness 40 includes a cable 41 and a connector 43 connected to the end of the cable 41, and the two connectors 43 are respectively sealed and connected to the two waterproof plug connectors 27, so that the two connectors 43 are respectively electrically connected to the two conductive terminals 23.

[0049] Optionally, the pin 212 of the resistor 21 is a lead, the center lines of the two leads are collinear, the conductive terminal 23 is a strip-shaped conductive sheet, and one end of the two conductive terminals 23 is respectively welded to one end of the two pins 212 away from the resistor body 214; preferably, the center lines of the two pins 212 and the center lines of the two conductive terminals 23 are collinear. Since the resistor 21 and the two conductive terminals 23 are in a straight strip shape, the housing 25 sleeved on the resistor 21 and the conductive terminals 23 is cylindrical, and therefore, the radial dimension of the housing 25 is small; further, the center line of the pin 212, the center line of the conductive terminal 23 and the axis of the housing 25 are collinear.

[0050] It can be understood that the wiring harness assembly 100 can be used for the vehicle-mounted CAN communication device of the vehicle, and the ends of the two wiring harnesses 40 away from the terminal resistor 20 are respectively electrically connected to the wiring harness in the vehicle-mounted CAN communication device to electrically connect the terminal resistor 20 to the vehicle-mounted CAN communication device. The terminal resistor 20 is mainly used to eliminate signal reflection and eliminate electromagnetic interference. The terminal resistor 20 is arranged in the vehicle-mounted CAN communication device, which is conducive to improving the stability of the signal. In this embodiment, the first direction and the second direction are coaxial and opposite. In other embodiments, the first direction and the second direction may also be non-coaxial, and the first direction and the second direction may also have a certain offset. Optionally, the two conductive terminals 23 and the resistor 21 are all arranged in the housing 25, and the insulation of the terminal resistor 20 is better.

[0051] One of the conductive terminals 23 of the terminal resistor 20 of the present application is led out in a first direction, and the other conductive terminal 23 is led out in a second direction, the first direction is opposite to the second direction, and the shell 25 is sleeved on the resistor 21 and the conductive terminal 23 so that the terminal resistor is in a strip shape as a whole, that is, the pins 212 and the conductive terminals 23 are arranged in a straight line, therefore, the terminal resistor 20 is in a strip shape as a whole, so that the radial dimension of the terminal resistor 20 is relatively small; plug-in slots 251 are respectively provided at the opposite ends of the shell 25, and two waterproof plug connectors 27 are respectively sealed and plugged into the two plug-in slots 251, therefore, the waterproof plug connector 27 occupies a relatively small space of the shell 25, and when a wiring harness wrapping sleeve is used for the terminal resistor 20 and the cable, the wiring harness wrapping sleeve has only a small bulge at the position corresponding to the terminal resistor 20, which occupies a relatively small space, thereby avoiding the cable from getting stuck during movement, facilitating installation, and helping to improve installation efficiency. Secondly, the two waterproof plug connectors 27 are respectively and sealedly plugged into the two plug slots 251 of the housing 25, and the two connectors 43 are respectively and sealedly connected to the two waterproof plug connectors 27, so that the terminal resistor 20 can be double-layer waterproof, so that the terminal resistor 20 has a better waterproof effect.

[0052] Optionally, a sealing ring 271 is provided between the outer circumference of the waterproof plug connector 27 and the inner circumference of the corresponding plug groove 251, and the sealing ring 271 is provided on the outer circumference of the waterproof plug connector 27 or the inner circumference of the plug groove 251. In this embodiment, a sealing ring 271 is sleeved on the outer circumference of the waterproof plug connector 27. When the waterproof plug connector 27 is plugged into the plug groove 251, the waterproof plug connector 27 is accommodated in the plug groove 251, and the sealing ring 271 is clamped between the waterproof plug connector 27 and the inner circumference of the plug groove 251. In other embodiments, a positioning ring groove is provided on the inner circumference of the plug groove 251, and the positioning ring groove surrounds the circumference of the plug groove 251, and the sealing ring 271 is positioned in the positioning ring groove. In other embodiments, at least two sealing rings 271 are sleeved on the outer circumference of the waterproof plug connector 27, and the two sealing rings 271 are arranged at intervals from each other in the plugging direction of the waterproof plug connector 27. In other embodiments, the inner circumferential surface of the plug-in groove 251 is provided with at least two positioning ring grooves, the two positioning ring grooves are arranged at intervals from each other in the axial direction of the plug-in groove 251, and the two sealing rings are respectively positioned in the two positioning ring grooves.

[0053] Optionally, the waterproof plug connector 27 and the housing 25 are detachably connected through the cooperation of a clamping portion and a clamping hole, the clamping portion is provided on one of the waterproof plug connector 27 and the housing 25, and the clamping hole is provided on the other of the waterproof plug connector 27 and the housing 25. In this embodiment, the outer circumference of the waterproof plug connector 27 is provided with a clamping portion 272, and the inner circumference of the plug slot 251 is provided with clamping holes 252 at opposite ends of the housing 25, and the clamping holes 252 are connected to the plug slot 251; when the waterproof plug connector 27 is inserted into the plug slot 251, the clamping portion 272 is clamped in the corresponding clamping hole 252. Specifically, two clamping holes 252 are respectively provided at opposite ends of the outer peripheral wall of the housing 25, and the two clamping holes 252 are respectively connected to the plug slots 251. The outer peripheral surface of the waterproof plug connector 27 is provided with two clamping parts 272. When the waterproof plug connector 27 is inserted into the plug slots 251, the two clamping parts 272 are respectively clamped in the two plug slots 251. Preferably, the two clamping holes 252 at the same end of the housing 25 are opposite to each other in the radial direction of the plug slot 251, and the two clamping parts 272 on the waterproof plug connector 27 are opposite to each other in the radial direction of the waterproof plug connector 27.

[0054] In other embodiments, the outer circumference of the waterproof plug connector 27 is provided with a snap-in hole, and the outer shell 25 is provided with a snap-in portion on the inner circumference of the plug slot 251, and when the waterproof plug connector 27 is inserted into the plug slot 251, the snap-in portion is snap-into the corresponding snap-in hole. Specifically, two snap-in portions are respectively provided at opposite ends of the outer circumferential wall of the outer shell 25, and two snap-in holes are provided on the outer circumferential surface of the waterproof plug connector 27, and when the waterproof plug connector 27 is inserted into the plug slot 251, the two snap-in portions are respectively snap-into the two plug slots.

[0055] like Figure 3 and Figure 4As shown, the conductive terminal 23 includes a connecting strip 232 and a plug-in strip 234 connected to one end of the connecting strip 232, and the end of the connecting strip 232 away from the plug-in strip 234 is connected to the pin 212; the plug-in strip 234, the connecting strip 232 and the pin 212 are arranged in a straight line. In this embodiment, the connecting strip 232 is a first rectangular strip, and the plug-in strip 234 is a second rectangular strip. The length direction of the first rectangular strip and the length direction of the second rectangular strip are both parallel to the axial direction of the pin 212, and the length of the plug-in strip 234 is greater than the length of the connecting strip 232.

[0056] like Figure 2-Figure 7 As shown, the housing 25 is a cylinder, and a receiving space 253 is provided in the middle of the housing 25 along its axial direction, and the resistor 21 and the conductive terminal 23 are received in the receiving space 253; specifically, the receiving space 253 includes a first receiving groove 254 and two second receiving grooves 255 located at opposite ends of the first receiving groove 254, one end of the two second receiving grooves 255 is respectively connected to the first receiving groove 254, and the other ends of the two second receiving grooves 255 away from the first receiving groove 254 are respectively connected to the plug-in groove 251. The resistor 21 is received in the first receiving groove 254, the two pins 212 and the two conductive terminals 23 are respectively received in the two second receiving grooves 255, and the ends of the two conductive terminals 23 away from the resistor 21 are respectively received in the two plug-in grooves 251. In this embodiment, the housing 25 is formed by injection molding on the outer periphery of the resistor 21 and the conductive terminal 23 using an insulating waterproof material.

[0057] Optionally, the plug-in slot 251 includes a plug-in section 2512 and a sealing section 2514 arranged in sequence along the axial direction of the housing 25, the plug-in section 2512 communicates with the second accommodating slot 255, the sealing section 2514 is farther away from the accommodating space 253 than the plug-in section 2512, the diameter of the sealing section 2514 is greater than the diameter of the plug-in section 2512, and the diameter of the plug-in section 2512 is greater than the diameter of the second accommodating slot 255; the clamping hole 252 at the same end of the housing 25 communicates with the sealing section 2514. When the resistor 21 and the conductive terminal 23 are accommodated in the housing 25, one end of each conductive terminal 23 away from the resistor body 214 is accommodated in the plug-in section 2512.

[0058] like Figure 8-Figure 9 As shown, after the resistor 21 and the conductive terminal 23 are placed in the injection mold, the outer shell 25 is wrapped around the resistor 21 and the conductive terminal 23 by injection molding; at this time, the plug-in strips 234 of the two conductive terminals 23 are respectively accommodated in the two plug-in sections 2512.

[0059] like Figure 2 and Figure 10-13As shown, the waterproof plug connector 27 is provided with a positioning groove 274 along its insertion direction, and the positioning groove 274 is used to seal and position the wiring harness 40, and the opposite ends of the positioning groove 274 pass through the opposite end surfaces of the waterproof plug connector 27 respectively; when the waterproof plug connector 27 is plugged into the corresponding plug slot 251, the positioning groove 274 faces the conductive terminal 23, so that the conductive terminal 23 is electrically connected to the wiring harness 40. In this embodiment, the waterproof plug connector 27 is a cylinder, the sealing ring 271 is sleeved on one end of the outer circumference of the waterproof plug connector 27, and the clamping portion 272 is located at the other end of the outer circumference of the waterproof plug connector 27. Specifically, a positioning ring groove is provided at one end of the outer circumference of the waterproof plug connector 27, and the positioning ring groove is arranged around the circumference of the waterproof plug connector 27, and the sealing ring 271 is positioned in the positioning ring groove; two clamping portions 272 are respectively protruded from the other end of the outer circumference of the waterproof plug connector 27, and the two clamping portions 272 are located radially opposite to the waterproof plug connector 27. Furthermore, the end surface of the clamping portion 272 facing the sealing ring 271 is provided as a guide surface 2722, and the other end surface of the clamping portion 272 facing away from the sealing ring 271 is provided with a locking surface 2724. The end surface of the waterproof plug connector 27 close to the sealing ring 271 is provided with a chamfer 273.

[0060] Optionally, the positioning slot 274 includes a positioning hole 2742 located at one end of the waterproof plug connector 27, an avoidance hole 2744 located at the other end of the waterproof plug connector 27, and a waterproof hole 2745, wherein the waterproof hole 2745 is located between the positioning hole 2742 and the avoidance hole 2744, that is, the waterproof hole 2745 is located at the end of the positioning hole 2742 away from the resistor, and the opposite ends of the waterproof hole 2745 are connected to the positioning hole 2742 and the avoidance hole 2744 respectively. The positioning hole 2742 is located at the end surface close to the sealing ring 271, and the avoidance hole 2744 is located at the end surface close to the clamping portion 272. The opening area of ​​the positioning hole 2742 is smaller than the opening area of ​​the waterproof hole 2745, and the opening area of ​​the avoidance hole 2744 is larger than the opening area of ​​the waterproof hole 2745. Specifically, the positioning hole 2742 is a non-circular hole, and the waterproof hole 2745 and the avoidance hole 2744 are both circular holes; in this embodiment, the positioning hole 2742 is a rectangular hole. In other embodiments, the positioning hole 2742 can be, but is not limited to, a polygonal hole, an elliptical hole, or an irregular hole. Optionally, the diameter of the waterproof hole 2745 gradually increases from the end close to the resistor 21 to the direction away from the resistor 21.

[0061] like Fig.14 and Fig.15As shown, when the waterproof plug connector 27 is inserted into the corresponding plug slot 251, a gap 256 is formed between the end surface of the waterproof plug connector 27 facing the resistor 21 and the inner end surface of the plug slot 251, and the end of the conductive terminal 23 away from the resistor 21 is accommodated in the gap 256; specifically, the plug strip 234 is located in the gap 256; the end surface of the waterproof plug connector 27 at the same end of the terminal resistor away from the resistor 21 is coplanar with the end surface of the housing 25. At this time, the sealing ring 271 is sealed and clamped between the waterproof plug connector 27 and the inner circumference of the plug slot 251, so that the waterproof plug connector 27 and the housing 25 are sealed and connected.

[0062] like Fig.16 and Fig.18 As shown, the connector 43 includes a plug-in portion 44 and a sealing portion 45 located at opposite ends thereof, the cable 41 is electrically connected to the plug-in portion 44, the sealing portion 45 is sealedly sleeved on the cable 41, the plug-in portion 44 is electrically connected to the corresponding conductive terminal 23, and the sealing portion 45 is sealedly plugged into the positioning slot 274 of the waterproof plug connector 27. Specifically, the sealing portion 45 is sealingly positioned in the waterproof hole 2745 of the positioning slot 274, one end of the plug-in portion 44 away from the conductive terminal 23 is positioned in the positioning hole 2742 of the positioning slot 274, and the plug-in portion 44 is electrically connected to the plug strip 234.

[0063] Optionally, the plug-in portion 44 includes a positioning block 442 and a pair of clamping pieces 444, the pair of clamping pieces 444 are connected to one end of the positioning block 442 away from the sealing portion 45, the pair of clamping pieces 444 are used to clamp the corresponding conductive terminal 23, and the positioning block 442 is positioned in the positioning hole 2742; specifically, one end of the positioning block 442 away from the clamping piece 444 is positioned in the positioning hole 2742, and the pair of clamping pieces 444 are located in the interval 256. In this embodiment, the positioning block 442 is a rectangular block; in other embodiments, the positioning block 442 can be, but is not limited to, a polygonal hole, an elliptical hole, or an irregular hole. The same ends of the pair of clamping pieces 444 are connected to the opposite sides of the end surface of the positioning block 442 away from the sealing portion 45, and the pair of clamping pieces 444 are clamped to the plug-in strip 234. One end of each clamping piece 444 is connected to one side of the end surface of the positioning block 442 , and the other end of the clamping piece 444 extends obliquely toward the center line of the positioning block 442 . The ends of the two clamping pieces 444 away from the positioning block 442 have a joint.

[0064] Specifically, the clamping piece 444 includes a first conductive clamping section 4442 and a second conductive clamping section 4444. One end of the first conductive clamping section 4442 is connected to the side of the end surface of the positioning block 442 away from the sealing portion 45, and the other end of the first conductive clamping section 4442 is inclined toward the center line of the positioning block 442; one end of the second conductive clamping section 4444 is connected to the end of the first conductive clamping section 4442 away from the positioning block 442, and the other end of the second conductive clamping section 4444 is inclined toward the center line away from the positioning block 442. Optionally, the gap between the two first conductive clamping sections 4442 gradually decreases along the direction from the sealing portion 45 to the positioning block 442, and the gap between the two second conductive clamping sections 4444 gradually increases along the direction from the sealing portion 45 to the positioning block 442. The pair of second conductive clamping sections 4444 of the plug-in portion 44 plays a guiding role, facilitating the insertion of the plug-in strip 234 between the pair of clamping pieces 444. Preferably, the intersection of the first conductive clamping section 4442 and the second conductive clamping section 4444 is an arc. After the plug-in strip 234 is inserted into the gap between the two second conductive clamping sections 4444, the plug-in strip 234 is clamped by a pair of clamping pieces 444 to achieve fixed connection and electrical connection between the plug-in portion 44 and the conductive terminal 23, thereby achieving electrical connection between the wiring harness 40 and the resistor 21. The positioning block 442 is provided with a plug-in hole 4424 on the end surface provided with the clamping piece 444, and the plug-in hole 4424 is directly opposite to the gap between the pair of clamping pieces 444.

[0065] The clamping piece 444 also includes two spring pieces 4445, and the two spring pieces 4445 are respectively attached to one of the side surfaces of the two first conductive clamping sections 4442, and one end of the spring piece 4445 is connected to the positioning block 442. The two spring pieces 4445 are used to push a pair of clamping pieces 444 to move closer to each other. In this embodiment, one of the spring pieces 4445 is attached to the side surface of one of the first conductive clamping sections 4442 away from the other first conductive clamping section 4442, and the other spring piece 4445 is attached to the side surface of the other first conductive clamping section 4442 away from the one of the first conductive clamping sections 4442. In other embodiments, the spring piece 4445 can also be attached to the opposite side surfaces of the first conductive clamping section 4442 or the side surface facing the other first conductive clamping section 4442.

[0066] Optionally, the plug-in portion 44 further includes an undercut 445 provided on the side of the positioning block 442, and the undercut 445 stops at the end surface of the waterproof plug connector 27 to prevent the wiring harness 40 from being separated from the waterproof plug connector 27. In this embodiment, undercuts 445 are respectively provided on two opposite side surfaces of the positioning block 442. Specifically, the undercut 445 is an elastic locking strip, one end of the undercut 445 is connected to the outer side surface of the positioning block 442, and the other end of the undercut 445 extends obliquely toward one end away from the clamping piece 444.

[0067] Optionally, the plug-in portion 44 further includes a connecting portion 446 connected between the positioning block 442 and the sealing portion 45, and the connecting portion 446 includes a positioning piece 4462, and the positioning piece 4462 is positioned at the waterproof hole 2745. In this embodiment, the positioning pieces 4462 are respectively provided on opposite sides of the connecting portion 446, and when the positioning block 442 is positioned at the positioning hole 2742, the two positioning pieces 4462 are respectively pressed against opposite sides of the waterproof hole 2745 to prevent the connecting member 43 from rotating relative to the waterproof plug connector 27, and the sealing portion 45 is sealingly positioned in the waterproof hole 2745. In this embodiment, the sealing portion 45 is an elastic sealing plug. Further, a waterproof ring is provided between the outer circumference of the sealing portion 45 and the inner circumference of the waterproof hole 2745, and the waterproof ring is provided on the outer circumference of the sealing portion 45 or the inner circumference of the waterproof hole 2745; the waterproof ring can make the sealing effect between the sealing portion 45 and the waterproof plug connector 27 better.

[0068] like Figure 14-18 As shown, when assembling the wiring harness assembly 100, the two waterproof connectors 27 are respectively sleeved on the two wiring harnesses 40. Specifically, the connector 43 of the wiring harness 40 is inserted into the positioning groove 274 of the waterproof connector 27, so that a pair of clamping pieces 444 and a pair of inverted buckles 445 pass through the positioning hole 2742, and the pair of inverted buckles 445 are elastically deformed until the pair of inverted buckles 445 abut against the end surface of the waterproof connector 27, and the positioning block 442 is positioned at the positioning hole 2742 with one end away from the pair of clamping pieces 444, and the positioning piece 4462 abuts against the inner side surface of the waterproof hole 2745, and the sealing portion 45 is sealed and filled in the waterproof hole 2745. When the waterproof plug connector 27 and the wiring harness 40 are inserted into the corresponding plug slot 251, the waterproof plug connector 27 is inserted into the plug slot 251 through chamfering, and the plug strip 234 of the conductive terminal 23 is inserted into the gap between the pair of clamping pieces 444. The ends of the pair of clamping pieces 444 and the pair of two spring pieces 4445 away from the positioning block 442 are all away from each other until the plug strip 234 is inserted into the corresponding plug hole 4424, and the plug strip 234 is clamped by the pair of clamping pieces 444; the clamping portion 272 is clamped into the corresponding clamping hole 252 through the guide surface 2722 until the locking surface 2724 stops at the end surface of the clamping hole 252. The waterproof plug connector 27 is positioned in the corresponding plug slot 251, and the sealing ring 271 is between the waterproof plug connector 27 and the inner circumference of the plug slot 251; at this time, the resistor 21 is double-layer waterproof, so that the terminal resistor 20 has a good waterproof effect.

[0069] like Fig.18 and Fig.19As shown, the wiring harness assembly also includes a cable 110 and an outer sheath 120, the outer sheath 120 wraps the cable 110 and the terminal resistor 20, and the axis of the cable 110 is parallel to the length direction of the terminal resistor 20. The cable 110 is electrically connected to the vehicle-mounted CAN communication device, and the end of the cable 41 away from the resistor 21 is electrically connected to the cable 110, so that the terminal resistor 20 is electrically connected to the CAN communication device. The terminal resistor 20 can eliminate signal reflection and eliminate electromagnetic interference, which is beneficial to improve the stability of the signal. When the outer sheath 120 wraps the terminal resistor 20 and the cable 110, since the terminal resistor 20 is in a strip shape, the radial area of ​​the terminal resistor 20 is small, so that there is only a small bulge at the outer sheath 120 wrapping the terminal resistor 20, which occupies a small space, reduces the impact on the mobile installation of the wiring harness, avoids the wiring harness assembly from getting stuck during movement, and facilitates installation.

[0070] The present application also provides a vehicle, which includes the wiring harness assembly 100 according to any one of the above embodiments.

[0071] The above is an implementation method of the embodiment of the utility model. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the embodiment of the utility model. These improvements and modifications are also considered to be within the protection scope of the utility model.

Claims

1. A terminal resistor, characterized in that: The terminal resistor includes: A resistor, the resistor comprising two pins located at opposite ends thereof; Conductive terminals, two of which are connected to the ends of the two pins respectively, one of which is led out in a first direction, and the other is led out in a second direction, the first direction being opposite to the second direction; A housing, the housing being sleeved on the resistor and the conductive terminal, the housing having plug-in slots at opposite ends thereof, wherein one end of the conductive terminal away from the resistor extends to the corresponding plug-in slot, and another end of the conductive terminal away from the resistor extends to the corresponding plug-in slot; and A waterproof plug connector, wherein two waterproof plug connectors are respectively plugged into two plug slots of the housing.

2. The terminal resistor according to claim 1, characterized in that: A sealing ring is arranged between the outer circumference of the waterproof plug connector and the inner circumference of the corresponding plug slot, and the sealing ring is arranged on the outer circumference of the waterproof plug connector or the inner circumference of the plug slot.

3. The terminal resistor according to claim 1, characterized in that: The waterproof plug connector and the shell are detachably connected through the cooperation of a clamping portion and a clamping hole, the clamping portion is provided on one of the waterproof plug connector and the shell, and the clamping hole is provided on the other of the waterproof plug connector and the shell.

4. The terminal resistor according to claim 1, characterized in that: The end surface of the waterproof plug connector at the same end of the terminal resistor facing away from the resistor is coplanar with the end surface of the housing.

5. The terminal resistor according to claim 1, characterized in that: The shell is cylindrical, and the center line of the pin, the center line of the conductive terminal and the axis of the shell are collinear.

6. The terminal resistor according to claim 1, characterized in that: The resistor and the two conductive terminals are all arranged in the housing.

7. The terminal resistor according to any one of claims 1 to 6, characterized in that: The waterproof plug connector is provided with a positioning groove along its insertion direction, and the positioning groove is used to seal and position the wiring harness, and the opposite ends of the positioning groove respectively pass through the opposite end surfaces of the waterproof plug connector; when the waterproof plug connector is plugged into the corresponding plug slot, the positioning groove faces the conductive terminal so that the conductive terminal is electrically connected to the wiring harness.

8. The terminal resistor according to claim 7, characterized in that: The positioning groove includes a positioning hole located at one end of the waterproof plug connector, and a waterproof hole, the positioning hole is a rectangular hole, the waterproof hole is a circular hole, the waterproof hole is located at one end of the positioning hole away from the resistor, and the waterproof hole is connected to the positioning hole.

9. The terminal resistor according to claim 8, characterized in that: The diameter of the waterproof hole gradually increases from one end close to the resistor to a direction away from the resistor.

10. The terminal resistor according to claim 8, characterized in that: When the waterproof plug connector is inserted into the corresponding plug slot, a gap is formed between the end surface of the waterproof plug connector facing the resistor and the inner end surface of the plug slot, and one end of the conductive terminal away from the resistor is accommodated in the gap.

11. A wiring harness assembly, characterized in that: The wiring harness assembly includes a terminal resistor as described in any one of claims 1 to 10 and two wiring harnesses, the wiring harness includes a cable and a connector connected to the end of the cable, the two connectors are respectively sealed and connected to the two waterproof plug connectors, and the two connectors are respectively electrically connected to the two conductive terminals.

12. The wire harness assembly according to claim 11, characterized in that: The connecting piece includes a plug-in portion and a sealing portion located at opposite ends thereof, the cable is electrically connected to the plug-in portion, the sealing portion is sealingly sleeved on the cable, the plug-in portion is electrically connected to the corresponding conductive terminal, the sealing portion is sealingly plugged into the positioning groove of the waterproof plug connector, and the positioning groove includes a positioning hole and a waterproof hole located at one end of the waterproof plug connector.

13. The wire harness assembly according to claim 12, characterized in that: The sealing portion is sealingly positioned in the waterproof hole of the positioning through groove, and one end of the resistor of the plug-in portion away from the terminal resistor is positioned in the positioning hole of the positioning through groove.

14. The wire harness assembly according to claim 12, characterized in that: The plug-in portion includes a positioning block and a pair of clamping pieces, wherein the pair of clamping pieces are connected to one end of the positioning block away from the sealing portion, and the pair of clamping pieces are used to clamp corresponding conductive terminals, and the positioning block is positioned in the positioning hole.

15. The wire harness assembly according to claim 14, characterized in that: The plug-in portion further comprises an undercut arranged on the side surface of the positioning block, and the undercut stops at the end surface of the waterproof plug connector to prevent the wiring harness from being separated from the waterproof plug connector.

16. The wire harness assembly according to claim 14, characterized in that: The plug-in portion further includes a connecting portion connected between the positioning block and the sealing portion, and the connecting portion includes a positioning piece, and the positioning piece is positioned in the positioning hole.

17. The wire harness assembly according to claim 11, characterized in that It also includes a cable and an outer sheath, wherein the outer sheath wraps the cable and the terminal resistor, and the axis of the cable is parallel to the length direction of the terminal resistor.

18. A vehicle, characterized in that: The vehicle comprises the wiring harness assembly according to any one of claims 11-17.

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