End cap, cable mounting structure, and light fixture

By designing the cable inlet, support guide, and arc-shaped guide of the end cap, a tight-fit connection of the cable and glue-filled leak prevention are achieved, solving the problem of poor matching between the cable and the end cap, and improving production efficiency and waterproof effect.

CN224316087UActive Publication Date: 2026-06-02HUIZHOU NVC OPTOELECTRONICS TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUIZHOU NVC OPTOELECTRONICS TECH CO LTD
Filing Date
2025-05-13
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

In existing technologies, the poor matching degree between the cable and the end cap's through-hole leads to problems such as difficulty in threading the cable and glue leakage, increasing production difficulty and cost.

Method used

An end cap was designed, including a cable inlet, a support guide, and an arc-shaped guide. Through the segmented inner wall and the limiting block, the cable is guided and limited, ensuring a tight connection between the cable and preventing glue leakage during the potting process.

Benefits of technology

This solves the problems of cables being difficult to pass through end caps and glue leakage, ensuring stable and reliable cable installation, preventing water ingress and glue leakage, and reducing production costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of end cap, end cap includes end cap main body and cable installation channel;End cap main body includes first end, second end, base and top, and first end and top are equipped with first opening and second opening respectively;Cable installation channel, it is located in end cap main body along longitudinal direction, including incoming section, supporting guide portion and arc guide portion, incoming section is equipped with segmented inside wall, for guiding cable to pass through;Supporting guide portion is equipped with the inclined plane for guiding and supporting cable;Arc guide portion includes arc guide surface and limit block;Cable installation channel guides cable to pass through end cap main body, limit block feedback cable installation is in place and limit cable advance.The end cap is optimized cable installation channel, solve the problem of difficult threading and glue leakage, and can be effectively waterproof.The utility model also provides cable installation structure and lamp including the end cap.
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Description

Technical Field

[0001] This utility model belongs to the technical field of lighting devices, specifically relating to an end cap, a cable mounting structure, and a lamp. Background Technology

[0002] In wall washer lights, linear lights, and other lighting fixtures, the cable passes through an end cap located at the end of the lamp housing and is connected to the lamp body. To facilitate cable passage, the cable passage hole on the end cap is usually an oblong or round hole, with its opening size slightly larger than the outer diameter of the cable.

[0003] The following problems are likely to occur during the production of cables and end caps: 1. Cables are mostly produced using extrusion processes, which have low precision. The wire diameter usually varies within ±0.3 mm of the cable's outer diameter, resulting in poor matching between the cable and the through hole. 2. The through hole is usually a through hole formed by mold forming or machining. It has high dimensional requirements. If it is too large or too small, it will cause unpredictable difficulties in production and assembly. 3. Due to the dimensional deviations of both the cable's outer diameter and the through hole, the following situations may occur during assembly: (1) The diameter of the through hole is too large and the outer diameter of the cable is too small. In this case, the cable can pass through easily; however, when applying glue, because the gap between the cable and the through hole is large, glue leakage is likely to occur. At this time, it is necessary to add manual cleaning for appearance; or fill the gap between the cable and the through hole with paste before applying glue to prevent glue leakage during application. However, this process is difficult, increases labor costs and production time; (2) the diameter of the wire hole is too small and the outer diameter of the cable is too large. In this case, it will be difficult for the cable to pass through the predetermined wire hole, resulting in longer processing time and increased costs; or it may be impossible to pass through and the hole needs to be enlarged again, which directly increases costs. Utility Model Content

[0004] To address the shortcomings of the prior art, this invention provides an end cap that, through optimized cable installation channel structure, solves the problems of difficult cable threading and adhesive leakage, and effectively prevents water leakage. This invention also provides a cable installation structure and a lighting fixture incorporating this end cap.

[0005] The technical effects to be achieved by this utility model are realized through the following technical aspects:

[0006] In a first aspect, this utility model provides an end cap, which includes an end cap body and a cable mounting channel;

[0007] The end cap body includes a first end and a second end disposed opposite to each other in the longitudinal direction, and a base and a top disposed opposite to each other in the thickness direction, wherein the first end and the top are respectively provided with a first opening and a second opening;

[0008] The cable mounting channel is longitudinally disposed within the end cap body, and the cable mounting channel includes:

[0009] The cable inlet section has a segmented inner wall for guiding the cable through the cable inlet section;

[0010] A support guide portion, disposed on the base, the support guide portion having an inclined surface for guiding and supporting the cable; and

[0011] An arc-shaped guide portion includes an arc-shaped guide surface and a limiting block disposed on the arc-shaped guide surface;

[0012] The cable installation channel guides the cable through the end cap body, and the limiting block provides feedback that the cable is installed in place and restricts the cable's movement.

[0013] In some embodiments, the cable inlet includes a first cable inlet slot, a second cable inlet slot, and a third cable inlet slot. The first cable inlet slot communicates with the outside through the first opening. The second cable inlet slot is located between the first cable inlet slot and the third cable inlet slot, and the slotting dimensions of the first cable inlet slot, the second cable inlet slot, and the third cable inlet slot decrease sequentially.

[0014] In some embodiments, the first end is further provided with a third opening, the third cable inlet groove communicates with the supporting guide portion through the third opening, and the cable is tightly connected to the third cable inlet groove.

[0015] In some embodiments, the cable mounting channel has a centerline L in the longitudinal direction. In a cross section along the centerline L, the first cable inlet slot and the first opening are respectively connected at A1 and A2, the first cable inlet slot and the second cable inlet slot are respectively connected at B1 and B2, the second cable inlet slot and the third cable inlet slot are respectively connected at C1 and C2, and the third cable inlet slot and the third opening are respectively connected at D1 and D2.

[0016] Among them, the relation is: H A1A2 >H B1B2 >H C1C2 =H D1D2 .

[0017] In some embodiments, the base has a base surface, and line segments C1D1 and C2D2 are both parallel to the base surface; line segments A1B1 and B1C1 form angles α and β with the base surface, respectively.

[0018] Among them, the relationship is: α > β.

[0019] In some embodiments, the supporting guide portion is further provided with a receiving groove, which is recessed toward the base surface, and the bottom of the receiving groove is lower than the plane where line segment C2D2 is located.

[0020] In some embodiments, the limiting block is centrally disposed on the arc-shaped guide surface and is connected to the inclined surface; the arc-shaped guide surface is used to guide the resin adhesive through the inclined surface to fill the receiving groove.

[0021] In some embodiments, the end cap body further includes a pair of side portions disposed laterally opposite each other, the cable mounting channel being disposed between the two side portions, and the side portions being provided with fixing holes.

[0022] Secondly, this utility model provides a cable installation structure, including a cable and the aforementioned end cap. The cable includes a conductor, an insulator covering the outer periphery of the conductor, and a shell covering the outer periphery of the insulator. One end of the cable is a terminal block, and the other end is connected to a waterproof connector.

[0023] After the terminal is partially stripped of its outer shell and insulator, the cable mounting channel guides the terminal through the end cap body; the outer shell abuts against the limiting block and is restricted from moving forward in the longitudinal direction, and the outer shell is tightly connected to the inlet section; resin glue passes through the arc-shaped guide surface, encapsulating part of the insulator and the outer shell in the supporting guide section and the arc-shaped guide section.

[0024] Thirdly, this utility model also provides a lamp, including a lamp body and the aforementioned cable mounting structure, wherein the end cap is fixedly connected to the end of the lamp body, and the cable is electrically connected to the power supply component.

[0025] In summary, this utility model has at least the following advantages:

[0026] 1. The end cap provided by this utility model has a progressively smaller slot size for the first, second, and third cable entry slots, and the cable is tightly fitted to the third cable entry slot to achieve a high degree of matching, thus solving the problems of cable difficulty in passing through the end cap and glue leakage.

[0027] 2. The end cap provided by this utility model has a limiting block on the arc-shaped guide surface to restrict the cable's movement, allowing the operator to clearly insert the cable into the designated position. In the horizontal and vertical directions, a third limiting groove limits the cable, preventing water ingress and adhesive leakage. Simultaneously, the limiting block regulates the cable's insertion length, preventing improper cable installation.

[0028] 3. In the cable installation structure and lamp provided by this utility model, the supporting guide part and the arc-shaped guide part of the end cover cooperate with each other to allow the cable to pass through longitudinally and then pass out from the second opening at the top; the supporting guide part is provided with a receiving groove, which lifts the cable while creating a gap between the cable and the receiving groove, allowing the resin glue to enter the bottom of the cable and effectively wrap the cable during glue pouring, ensuring stable and reliable cable installation. Attached Figure Description

[0029] Figure 1 This is a structural schematic diagram of the end cap of Embodiment 1 of this utility model from one perspective.

[0030] Figure 2 This is a structural schematic diagram of the end cap of Embodiment 1 of this utility model from another perspective.

[0031] Figure 3 for Figure 1 A cross-sectional view along line AA.

[0032] Figure 4 for Figure 3 Enlarged schematic diagram of section F in the middle.

[0033] Figure 5 This is a schematic diagram of the end cap with a cable installed in Embodiment 1 of this utility model.

[0034] Figure 6 This is an exploded view of the cable installation structure of Embodiment 2 of this utility model.

[0035] Figure 7 This is a schematic diagram of the cable installation structure of Embodiment 2 of this utility model.

[0036] Figure 8 This is a schematic diagram of the cable installation structure in Embodiment 2 of this utility model.

[0037] Marked in the image:

[0038] 100-End Cap;

[0039] 1-End cap body,

[0040] 11-First end, 12-Second end, 13-Base, 14-Top, 15-Side;

[0041] 111 - First opening, 141 - Second opening, 113 - Third opening;

[0042] 130 - Base plane;

[0043] 2-Cable installation channel,

[0044] 21-Inlet section, 22-Supporting guide section, 23-Arc-shaped guide section;

[0045] 211-First cable inlet slot, 212-Second cable inlet slot, 213-Third cable inlet slot;

[0046] 221 - Inclined surface, 222 - Receiving groove;

[0047] 231 - Arc-shaped guide surface; 232 - Limiting block;

[0048] 200-cable;

[0049] 201-Conductor, 202-Insulator, 203-Shell, 210-Terminal;

[0050] 300-Waterproof connector;

[0051] 400 - Resin glue;

[0052] X - horizontal direction, Y - vertical direction, Z - height direction. Detailed Implementation

[0053] To facilitate understanding of this utility model, a more comprehensive description will be given below with reference to the accompanying drawings and specific embodiments. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0054] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0055] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0056] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0057] Example 1

[0058] refer to Figures 1-5This embodiment provides an end cap 100, which is disposed at the end of a wall washer light or a linear light. The end cap 100 includes an end cap body 1 and a cable mounting channel 2. The cable mounting channel 2 is disposed in the end cap body 1. One end of the cable 200 is guided by the cable mounting channel 2 and passes through the end cap body 1 to be electrically connected to the light body.

[0059] The end cap body 1 includes a first end 11, a second end 12, a base 13, and a top 14; wherein the first end 11 and the second end 12 are arranged opposite each other in the longitudinal Y direction, and according to the forward direction of the cable 200, the first end 11 is the front end of the end cap body 1, and the second end 12 is the rear end of the end cap body 1. The first end 11 has a first opening 111 for the cable 200 to pass through. Depending on the shape matching with the cable 200, the first opening 111 may be provided with an oblong hole or a round hole. In some embodiments, the cable 200 is a flat cable, and the shape of the first opening 111 is oblong, elliptical, or racetrack-shaped.

[0060] The base 13 and the top 14 are arranged opposite each other in the height direction Z, and the base 13 is fixedly connected to the bottom of the lamp body end. In this embodiment, the top 14 has a hollow structure and a second opening 141 for the cable to pass through.

[0061] A cable installation channel 2 is longitudinally Y-shaped within the end cap body 1, guiding the cable 200 through the end cap body. Specifically, the cable installation channel 2 includes an inlet section 21, a supporting guide section 22, and an arc-shaped guide section 23. The inlet section 21 has a segmented inner wall 210 for guiding the cable through the inlet section 21 and into the supporting guide section 22. The supporting guide section 22 is located on the base 13 and has an inclined surface 221 for guiding and supporting the cable 200. The inclined surface 221 supports the cable 200 while also guiding it to the arc-shaped guide section 23. The arc-shaped guide section 23 includes an arc-shaped guide surface 231 and a limiting block 232. The arc-shaped guide surface 231 guides the cable 200 to and from the second opening 141, while the limiting block 232 provides feedback and restricts the forward movement of the cable 200. When the outer shell 203, or the outer sheath or protective sheath of the cable 200 reaches the limit block 232, it will no longer be able to move forward smoothly. At this time, the operator can be informed that the cable installation is in place. At the same time, the limit block 232 also restricts the cable from moving forward.

[0062] During the installation process of passing the cable 200 through the end cover, the cable 200 first enters the cable installation channel 2 through the first opening 111, passes through the inlet 21, the supporting guide 22 and the arc-shaped guide 23 in sequence, and then exits through the second opening 141; and the limiting block 232 provides feedback that the installation is in place and restricts the cable 200 from moving forward.

[0063] In some embodiments, the end cap body 1 further includes a pair of sides 15 disposed opposite each other in the transverse direction X, the sides 15 being located on both sides of the cable mounting channel 2. A support base 151 is provided on the side side 15, surrounding the periphery of the cable mounting channel 2, which can improve the structural strength of the cable mounting channel 2 in the transverse direction X. The support base 151 may be provided with fixing holes 152 for fixed connection with the lamp body.

[0064] Along the forward direction of the cable 200, the cable inlet 21 includes a first cable inlet groove 211, a second cable inlet groove 212 and a third cable inlet groove 213. The first cable inlet groove 211 communicates with the outside through a first opening 111. The second cable inlet groove 212 is disposed between the first cable inlet groove 211 and the third cable inlet groove 213, and the slot size of the first cable inlet groove 211, the second cable inlet groove 212 and the third cable inlet groove 213 decreases sequentially.

[0065] Specifically, since the inner wall 210 of the cable inlet 21 is segmented, the inner wall structures of the first cable inlet groove 211, the second cable inlet groove 212, and the third cable inlet groove 213 are all different, with the groove size decreasing sequentially. The groove size of the first cable inlet groove 211 is larger than that of the second cable inlet groove 212, and the groove size of the second cable inlet groove 212 is larger than that of the third cable inlet groove 213. The first opening 111 and the first cable inlet groove 211 have a funnel-shaped groove structure, which can smoothly guide the terminal 210 of the cable 200 into the first cable inlet groove 211, then through the second cable inlet groove 212 and the third cable inlet groove 213, and out through the second opening 141. The groove size of the second cable inlet groove 212 gradually tightens until the third cable inlet groove 213 is tightly connected to the outer shell of the cable.

[0066] It should be noted that, in this embodiment, the cable inlet 21 is formed by the first end portion 11, the base portion 13 and the top portion 14, and the cable inlet 21 extends through the first end portion 11. A third opening 113 is also provided in the first end portion 11, and the third cable inlet groove 213 communicates with the supporting guide portion 22 through the third opening 113, and the cable is tightly connected to the third cable inlet groove 213.

[0067] Reference Figure 1 and Figure 3 The cable installation channel 2 has a centerline L in the longitudinal direction Y. In the cross section along the centerline L, the first cable inlet groove 211 and the first opening 111 are respectively connected to A1 and A2, the first cable inlet groove 211 and the second cable inlet groove 212 are respectively connected to B1 and B2, the second cable inlet groove 212 and the third cable inlet groove 213 are respectively connected to C1 and C2, and the third cable inlet groove 213 and the third opening 113 are respectively connected to D1 and D2.

[0068] Among them, the relation is: H A1A2 >H B1B2 >HC1C2 =H D1D2 .

[0069] H A1A2 Let A1 be the distance between A2 in the height direction;

[0070] H B1B2 Let B be the distance between B and B in the height direction;

[0071] H C1C2 Let C be the distance between C and C in the height direction;

[0072] H D1D2 Let D be the distance between D and D in the height direction.

[0073] Specifically, the first cable inlet groove 213 and the first opening 111 have a funnel-shaped groove structure, which can guide the cable 200 into the first cable inlet groove 211. The groove size of the first cable inlet groove 211 gradually decreases, presenting an H shape. A1A2 >H B1B2 In the first inlet groove 211, its inner wall can be a planar structure or an arc-shaped structure that is recessed toward the base 13 or the top 14 respectively.

[0074] Cable 200 enters the second inlet slot 212 through the first inlet slot 211. The slot size of the second inlet slot 212 gradually decreases, forming an H shape. B1B2 >H C1C2 .like Figure 3 As shown, the reduction in the slot size of the second inlet slot 212 is less than the reduction in the slot size of the first inlet slot 211. Similar to the first inlet slot 211, the inner wall of the second inlet slot 212 can be a planar structure or an arc-shaped structure recessed towards the base 13 or the top 14 respectively.

[0075] Next, cable 200 enters the third inlet slot 213 through the second inlet slot 212. The slot size of the third inlet slot 213 remains unchanged, and the inner sidewall of the base of the third inlet slot 213 is parallel to the inner sidewall of the top, forming an H shape. C1C2 =H D1D2 Because the outer shell 203 of the cable 200 is flexible, after the cable 200 enters the third inlet groove 213, the inner sidewall of the base and the inner sidewall of the top respectively squeeze the outer shell of the cable, forming a tight fit. On the one hand, it can restrict the movement of the cable 200 in the height direction Z; on the other hand, it can avoid glue leakage in the subsequent resin (glue) potting process and reduce the cleaning process.

[0076] If only the first cable inlet slot 211 and / or the second cable inlet slot 212 are used, the interference between the cable and the cable inlet is insufficient, and the cable cannot form a tight fit with the cable inlet, which easily leads to glue leakage. If only the third cable inlet slot 213 is used as the cable inlet, the slot (opening) size of the third cable inlet slot will be too large, and the cable will still not form a tight fit, resulting in glue leakage. If the slot (opening) size of the third cable inlet slot is made smaller, it will be difficult or impossible to insert the cable.

[0077] In this embodiment, the cable inlet section 21, composed of the first cable inlet groove 211, the second cable inlet groove 212 and the third cable inlet groove 213, is used to smoothly guide the cable through, thus solving the problem of difficult cable threading. The third cable inlet groove 213 forms a tight fit with the cable, which limits the cable and prevents glue leakage, thus solving the problem of glue leakage caused by the size not matching the cable.

[0078] Reference Figure 3 and Figure 4 The base 13 has a base surface 130, and line segments C1D1 and C2D2 are both parallel to the base surface 130. That is, the inner walls of the third inlet groove 213 located in the base 13 and the top 14 are both parallel to the base surface 130. In cross-section, the third inlet groove 213 is rectangular, and its height remains constant. The inner walls of the base and the top are planar structures.

[0079] In cross-section, both the first inlet slot 211 and the second inlet slot 213 are isosceles trapezoidal structures with the centerline L as the axis of symmetry.

[0080] Taking the inner sidewall at the top as an example, line segment A1B1 forms an angle α with the base surface 130, and line segment B1C1 forms an angle β with the base surface 130; the angles α and β have the following relationship: α > β. The reduction in the slot size of the first inlet slot 211 is greater than the reduction in the slot size of the second inlet slot 212.

[0081] After the cable enters the first inlet slot 211, as the cable terminal moves forward, the outer casing gradually passes through the second inlet slot 212 and is then clamped by the third inlet slot 213, achieving a tight fit.

[0082] Furthermore, the support guide section 22 is also provided with a receiving groove 222, which is recessed towards the base surface 130 to receive the resin glue flowing into the support guide section 22. Moreover, the bottom of the receiving groove 222 is lower than the plane where the line segment C2D2 is located, so that after the resin glue flows into the support guide section 22 and the filling is completed, it does not flow back into the wire inlet section 21.

[0083] In the arc-shaped guide portion 23, the limiting block 232 is centrally disposed on the arc-shaped guide surface 231, and the limiting block 232 is connected to the inclined surface 221 supporting the guide portion 22. In the end cap 100 of this embodiment, the limiting block 232 is a stop step structure. By providing the limiting block 232 in the forward direction of the cable, the operator can clearly determine the insertion length of the cable and the forward position of the outer shell (sheath), avoiding the situation where the cable is not fully inserted, resulting in a gap between the cable and the third inlet slot of the cable inlet portion, which would lead to poor waterproofing.

[0084] The limiting block 232 can regulate the insertion length of the cable, preventing the cable from being installed improperly. The setting of the limiting block 232 can ensure the consistency of the cable length of each end cap, which is especially important in confined spaces where there is no space to place excess cable.

[0085] The curved guide surface 231 has a sloping structure with a curved surface. On the one hand, it can guide the cable terminal to quickly pass through the second opening; on the other hand, the curved guide surface 231 can also guide the resin adhesive to fill into the receiving groove 222 through the sloping surface 221. The cable is partially suspended above the receiving groove 222 of the supporting guide part. During the glue pouring, the resin adhesive can enter the bottom of the cable and then wrap the cable, making the installation stable and reliable.

[0086] The end cap provided in this embodiment has progressively smaller slot sizes for the first, second, and third cable entry slots, guiding the cable into the supporting guide section. Furthermore, the cable is tightly fitted to the third cable entry slot, achieving a high-fitting state and solving the problems of cable difficulty passing through the end cap and glue leakage. The limiting block on the arc-shaped guide surface restricts cable movement longitudinally, standardizing the cable insertion length and allowing the operator to clearly insert the cable into the designated position, preventing improper cable installation. In the lateral and vertical directions, the third limiting slot limits the cable, preventing water ingress and glue leakage.

[0087] Example 2

[0088] exist Figures 1-5 Based on reference Figures 6-8This embodiment provides a cable installation structure, including a cable 200 and an end cap 100 as described in Embodiment 1. The cable 200 includes a conductor 201, an insulator 202, and a sheath 203. The insulator 202 covers the outer periphery of the conductor 201 and can also be referred to as the core wire. The sheath 203 covers the outer periphery of the insulator 202 and is made of insulating material. The sheath 203 can also be referred to as a jacket or protective sleeve. One end of the cable 200 is a terminal 210, used to pass through the end cap 100 and make an electrical connection to the lamp body; the other end is connected to a waterproof connector 300. The cable 200 in this embodiment is a flat connector. After the terminal 210 is partially stripped of the sheath 203 and the insulator 202, the cable installation channel 2 guides the terminal 210 through the end cap body 1. The sheath 203 abuts against the limiting block 232 and is restricted in its longitudinal direction, and the sheath 203 is tightly fitted to the inlet portion 21. The resin adhesive 400 passes through the arc-shaped guide surface 231 and encapsulates part of the insulator 202 and the outer shell 203 in the supporting guide part 22 and the arc-shaped guide part 23.

[0089] The specific process of cable 200 passing through end cap 100 and being installed is as follows:

[0090] S1. After the outer shell 203 and insulator 202 are partially stripped from the terminal 210 of cable 200, the rigid conductor 201 is exposed. The terminal 210 enters the cable installation channel 2 through the first opening 111, passes through the inlet section 21, the supporting guide section 22, and the arc-shaped guide section 23 in sequence, and reaches the arc-shaped guide surface 231. At this time, the upwardly inclined slope 221 supports the insulator 202 and suspends it in the air. The outer shell 203 is about to enter the first inlet slot 211 through the first opening 111.

[0091] S2. The conductor 201 of terminal 210, guided by the arc-shaped guide surface 231, passes through the second opening 141. Because the arc-shaped guide surface 231 has a circular arc surface, when the insulator contacts the arc-shaped guide surface, it naturally bends, guiding the conductor and insulator upwards from the second opening. This guiding method prevents the insulator and conductor from bending downwards, thus preventing the cable from continuing its journey. At this time, the outer casing 203 passes through the first inlet slot 211 and enters the second inlet slot 212, and the end of the outer casing 203 is about to enter the third inlet slot 213.

[0092] S3. When the end of the outer casing 203 passes through the third cable inlet slot 213 and reaches the stop block 232, which is a step-like stop, the outer casing 203 abuts against the stop block 232 and is restricted from moving forward longitudinally, creating an interference state. The cable 200 can no longer move forward smoothly, and at this time, feedback is given to the operator: the cable installation is in place; at the same time, the stop block 232 also restricts the cable from continuing to move forward. Moreover, the outer casing of the cable is tightly fitted to the third cable inlet slot, achieving a high degree of matching.

[0093] To ensure a waterproof seal for the cable within the end cap, a potting resin 400 is applied. Guided by the curved guide surface 231, the highly fluid resin 400 passes through the inclined surface 221 and fills the receiving groove 222. The cable is partially suspended above the receiving groove 222 of the supporting guide portion. During potting, the resin 400 penetrates to the bottom of the cable, encapsulating it. Part of the insulation 202 and the outer shell 203 are then encapsulated within the supporting guide portion 22 and the curved guide portion 23, forming a waterproof seal layer that ensures stable and reliable installation.

[0094] Example 3

[0095] This embodiment provides a lamp, which includes a lamp body and a cable mounting structure. An end cap is fixedly connected to the end of the lamp body, and the cable is electrically connected to a power supply component.

[0096] In this lamp, the supporting guide and the arc-shaped guide of the end cap work together to allow the cable to be inserted longitudinally and then exit through the second opening at the top. The supporting guide is provided with a receiving groove, which lifts the cable while creating a gap between the cable and the receiving groove. During the glue pouring process, the resin glue can enter the bottom of the cable and effectively wrap the cable, ensuring that the cable installation is stable and reliable.

[0097] The above description is merely an example and illustration of the structure of this utility model, and while the description is quite specific and detailed, it should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these obvious substitutions all fall within the protection scope of this utility model.

Claims

1. An end cap, characterized in that, The end cap includes an end cap body and a cable mounting channel; The end cap body includes a first end and a second end disposed opposite to each other in the longitudinal direction, and a base and a top disposed opposite to each other in the thickness direction, wherein the first end and the top are respectively provided with a first opening and a second opening; The cable mounting channel is longitudinally disposed within the end cap body, and the cable mounting channel includes: The cable inlet section has a segmented inner wall for guiding the cable through the cable inlet section; A support guide portion, disposed on the base, the support guide portion having an inclined surface for guiding and supporting the cable; and An arc-shaped guide portion includes an arc-shaped guide surface and a limiting block disposed on the arc-shaped guide surface; The cable installation channel guides the cable through the end cap body, and the limiting block provides feedback that the cable is installed in place and restricts the cable's movement.

2. The end cap according to claim 1, characterized in that, The cable inlet includes a first cable inlet slot, a second cable inlet slot, and a third cable inlet slot. The first cable inlet slot communicates with the outside through the first opening. The second cable inlet slot is located between the first cable inlet slot and the third cable inlet slot. The slotting dimensions of the first cable inlet slot, the second cable inlet slot, and the third cable inlet slot decrease sequentially.

3. The end cap according to claim 2, characterized in that, The first end is also provided with a third opening, and the third cable inlet groove communicates with the supporting guide part through the third opening, and the cable is tightly connected to the third cable inlet groove.

4. The end cap according to claim 2, characterized in that, The cable installation channel has a centerline L in the longitudinal direction. In the cross section along the centerline L, the first cable inlet groove and the first opening are respectively connected to A1 and A2, the first cable inlet groove and the second cable inlet groove are respectively connected to B1 and B2, the second cable inlet groove and the third cable inlet groove are respectively connected to C1 and C2, and the third cable inlet groove and the third opening are respectively connected to D1 and D2. Among them, the relation is: H A1A2 >H B1B2 >H C1C2 =H D1D2 .

5. The end cap according to claim 4, characterized in that, The base has a base surface, and line segments C1D1 and C2D2 are both parallel to the base surface; line segments A1B1 and B1C1 form angles α and β with the base surface, respectively; Among them, the relationship is: α > β.

6. The end cap according to claim 5, characterized in that, The supporting guide portion is also provided with a receiving groove, which is recessed towards the base surface, and the bottom of the receiving groove is lower than the plane where line segment C2D2 is located.

7. The end cap according to claim 6, characterized in that, The limiting block is centrally located on the arc-shaped guide surface and is connected to the inclined surface; the arc-shaped guide surface is used to guide the resin glue through the inclined surface and fill it into the receiving groove.

8. The end cap according to claim 1, characterized in that, The end cap body also includes a pair of side portions arranged opposite each other in the lateral direction, the cable installation channel is disposed between the two side portions, and the side portions are provided with fixing holes.

9. A cable installation structure, characterized in that, The cable includes a cable and an end cap as described in any one of claims 1-8, wherein the cable includes a conductor, an insulator covering the outer periphery of the conductor, and a shell covering the outer periphery of the insulator; one end of the cable is a terminal block, and the other end is connected to a waterproof connector; After the terminal is partially stripped of its outer shell and insulator, the cable mounting channel guides the terminal through the end cap body; the outer shell abuts against the limiting block and is restricted from moving forward in the longitudinal direction, and the outer shell is tightly connected to the inlet section; resin glue passes through the arc-shaped guide surface, encapsulating part of the insulator and the outer shell in the supporting guide section and the arc-shaped guide section.

10. A lighting fixture, characterized in that, The device includes a lamp body and the cable mounting structure as described in claim 9, wherein the end cap is fixedly connected to the end of the lamp body, and the cable is electrically connected to the power supply component.