Three-way waterproof connector

Abstract

A three-way waterproof connector comprises a shell, two sealing clamps, two main electric wires, a branch electric wire and a wire positioning plate. Due to the fact that the inner wall of the middle of the shell is provided with the plurality of glue permeating grooves, when glue or resin is poured for sealing, the glue or the resin is more evenly and effectively filled in the shell for better sealing. Besides, as the main wire passing hole formed by the upper half wire passing hole of the sealing clamp and the lower half wire passing hole of the shell is welded through ultrasonic waves, glue or resin cannot leak out of the two ends of the shell to affect the quality and appearance of the waterproof connector, and meanwhile, before glue or resin is poured, the wire positioning plate is sleeved outside the branch wire, so that the waterproof connector is convenient to use. Therefore, when glue or resin is poured to seal the shell, it can be ensured that the branch wires of each connector are in the center state, the situation that the quality and the appearance of the waterproof connector are affected due to the fact that the branch wires deviate to one side is avoided, and therefore the waterproof connector is more reasonable in structure, better in waterproof sealing effect, more stable in product quality and more attractive in appearance.

Description

Technical Field

[0001] The utility model relates to a waterproof connector for an LED strip light used in outdoor landscape lighting, in particular to a tee-type waterproof connector for an LED strip light. Background Art

[0002] As we know, long-strip LED strip lights such as wall washing lights and linear lights widely used in outdoor landscape lighting projects require a lot of waterproof connectors to connect multiple strip-shaped LED strip lights in series to form the desired shape. Currently, there are two types of waterproof connectors for power connection of such long-strip LED lights:

[0003] One is a two-way waterproof connector that is connected in series at the ends of two adjacent LED strip lights for power supply. It can usually only connect 7-8 wall washing lights or linear lights in series.

[0004] The other is a tee-type waterproof connector that is connected in the middle of the LED strip light for power supply. It can connect dozens of wall washing lights or linear lights in series.

[0005] The current tee-type waterproof connectors have poor waterproof performance. For example, a wire connector and a lamp with the patent publication number CN215772394U reduces the production cost to a certain extent. However, since the wire clamping seat is detachably installed at the openings at both ends of the housing, even if a sealing ring is sleeved on the power cord, in the outdoors, the sealing ring is prone to aging, resulting in rainwater, water vapor, etc. easily seeping into the wire connector. Therefore, the waterproof performance of such wire connectors is poor. Moreover, when the above patent uses glue (or resin) to seal the circuit board, the glue or resin easily oozes out from the openings at both ends of the housing and the sealing ring, thus affecting the product quality. In addition, when the current tee-type waterproof connectors use glue (or resin) to encapsulate the housing, it is difficult to ensure that the bypass branch wires (used to supply power to the long strip lights) are all in the center position, which will affect the product quality and aesthetics to a certain extent. Summary of the Invention

[0006] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a tee-type waterproof connector with a more reasonable structure, better waterproof sealing effect, more stable product quality and more beautiful appearance.

[0007] To solve the above-mentioned existing technical problems, the utility model adopts the following technical solutions:

[0008] A tee-type waterproof connector includes a housing, two sealing clips, two main wires, branch wires, and a wire positioning plate, wherein:

[0009] The housing is a strip-shaped outer shell; on the bottom surfaces at both ends of the housing, there are lower wire passing holes, on the inner walls at both ends, there are strip-shaped grooves and hook grooves, and on the inner wall in the middle, there are a plurality of glue seepage grooves;

[0010] On the bottom surface of the sealing clip, there is an upper half wire passing hole, and on both sides, there are hooks that can be hooked in the hook grooves and flanges that match the strip grooves; after the flange of the sealing clip slides into the strip groove, the hooks are hooked in the hook grooves.

[0011] Among the two main wires, one end of one main wire is provided with a male connector, and one end of the other main wire is provided with a female connector that matches the male connector; after the other ends of the main wires are inserted into the housing and the sealing clip is installed, while the main wires are clamped by the main wire passing hole formed by the upper half wire passing hole of the sealing clip and the lower half wire passing hole of the housing, the hooks of the sealing clip are hooked in the hook grooves of the housing; ultrasonic welding is performed at the main wire passing hole.

[0012] After one end of the branch wire is connected to the main wire, the other end is exposed outside the housing.

[0013] In the middle of the wire positioning plate, there is a wire positioning hole for sleeving the branch wire; after the wire positioning plate is sleeved on the branch wire, it is arranged in the housing.

[0014] After the sealing clip, the main wire, the branch wire, and the wire positioning plate are arranged in the housing, glue or resin is poured into the housing for sealing.

[0015] In an improved scheme of the above three-way waterproof connector, the wire positioning plate is positioned in the housing through a supporting structure; the supporting structure includes an open-type positioning plate support platform arranged on the inner wall of the housing and an upper retaining platform that can prevent the wire positioning plate from vertically slipping out of the housing before pouring glue or resin, and a convex platform arranged on the wire positioning plate and capable of falling on the positioning plate support platform; the distance in height between the positioning plate support platform and the upper retaining platform corresponds to the thickness of the wire positioning plate.

[0016] In an improved scheme of the above three-way waterproof connector, ultrasonic welding is performed at the joint edges where the sealing clip and the housing are exposed.

[0017] In an improved scheme of the above three-way waterproof connector, several rows of wire dividing positions are arranged inside the bottom of the housing.

[0018] In an improved scheme of the above three-way waterproof connector, the branch wire is a multi-core wire, and it is electrically connected to the two main wires through a circuit board; a circuit board support platform is arranged at the bottom of the housing, and a lower retaining platform that can prevent the circuit board from vertically slipping out of the housing before pouring glue or resin is arranged on the inner wall; the distance in height between the circuit board support platform and the lower retaining platform corresponds to the thickness of the circuit board.

[0019] In an improved scheme of the above three-way waterproof connector, the branch wire is a two-core wire, and the two core wires are directly connected to the corresponding core wires of the main wire respectively.

[0020] In the improvement scheme of the above three-way waterproof connector, there are two strip-shaped grooves on the same side of the end of the housing; there are two flanges on the same side of the sealing clip, and they are respectively located on both sides of the hook.

[0021] In the improvement scheme of the above three-way waterproof connector, screw through holes are provided on the housing.

[0022] In the improvement scheme of the above three-way waterproof connector, a sealing gasket is provided in the recess of the wire positioning plate.

[0023] In the improvement scheme of the above three-way waterproof connector, the sealing gasket is injection-molded in the recess of the wire positioning plate; the wire positioning plate is provided with a convex ring at the wire positioning hole.

[0024] Compared with the prior art, the beneficial effects of the present utility model are as follows: Since a plurality of glue seepage grooves are provided on the inner wall of the middle part of the housing, when pouring glue or resin into the housing for sealing, part of the glue or resin will seep along the glue seepage grooves on the inner wall of the housing into some areas of the bottom surface of the housing where it is not easy to enter the glue or resin (especially the corners), thus achieving a better sealing effect of the glue or resin; in addition, since ultrasonic welding is used at the main wire through hole formed by the upper wire through hole of the sealing clip and the lower wire through hole of the housing, when pouring glue or resin for sealing, the glue or resin will not leak out from both ends of the housing and affect the quality and appearance of the waterproof connector. At the same time, before pouring glue or resin, since a wire positioning plate is sleeved on the branch wire, when pouring glue or resin to seal the housing, it can ensure that the branch wires of each connector are in the centered state, and the situation that the quality and appearance of the waterproof connector are affected due to deviation to one side will not occur. Therefore, the structure of the present utility model is more reasonable, the waterproof sealing effect is better, and the quality of the product is more stable and the appearance is more beautiful.

[0025] The following further describes the present utility model in detail in conjunction with the accompanying drawings and specific embodiments: Description of the Drawings

[0026] Figure 1 is a three-dimensional schematic diagram of the first embodiment of the present utility model;

[0027] Figure 2 is an exploded schematic diagram of the first embodiment of the present utility model;

[0028] Figure 3 is a schematic diagram of the first embodiment of the present utility model before pouring glue;

[0029] Figure 4 is a three-dimensional schematic diagram of the second embodiment of the present utility model;

[0030] Figure 5 is an exploded schematic diagram of the second embodiment of the present utility model;

[0031] Figure 6 It is a schematic diagram before potting in the second embodiment of the present utility model; Specific implementation manner

[0032] The present utility model is a three - way waterproof connector. As Figures 1 to 6 shown, it includes a housing 1, two sealing clips 2, two main wires 3, a branch wire 4, and a wire positioning plate 5, wherein:

[0033] The housing 1 is an open - type strip - shaped outer shell, and its cross - section is U - shaped; on the bottom surfaces at both ends of the housing 1, there are lower wire - passing holes 11, on the inner walls at both ends, there are strip - shaped grooves 12 and hook grooves 13, and on the inner wall in the middle, there are a plurality of glue - seeping grooves 14;

[0034] On the bottom surface of the sealing clip 2, there are upper wire - passing holes 21, on both sides, there are hooks 22 that can be hooked in the hook grooves 13 and flanges 23 that match the strip - shaped grooves 12; after the flange 23 of the sealing clip 2 slides into the strip - shaped groove 12, the hook 22 is hooked in the hook groove 13;

[0035] Among the two main wires 3, one end of one main wire 3 is provided with a male connector 31, and one end of the other main wire 3 is provided with a female connector 32 that matches the male connector 31; after the other ends of the main wires 3 are inserted into the housing 1 and the sealing clips 2 are installed, while the main wires 3 are clamped by the main - wire passing holes formed by the upper wire - passing holes 21 of the sealing clips 2 and the lower wire - passing holes 11 of the housing 1, the hooks 22 of the sealing clips 2 are hooked in the hook grooves 13 of the housing 1; ultrasonic welding is performed at the main - wire passing holes;

[0036] After one end of the branch wire 4 is connected to the main wire 3, the other end is exposed outside the housing 1; the exposed end of the branch wire 4 is used to power strip - shaped LED lights such as wall - washing lights or strip lights;

[0037] In the middle of the wire positioning plate 5, there is a wire positioning hole 51 for sleeving on the branch wire 4; the wire positioning plate 5 is sleeved on the branch wire 4 and then arranged in the housing 1;

[0038] After the sealing clip 2, the main wire 3, the branch wire 4, and the wire positioning plate 5 are arranged in the housing 1 (as Figure 3 , 6 shown), glue or resin 9 is potted in the housing 1 for sealing to make a three - way waterproof connector. As Figure 1 , 4 shown, when potting glue or resin, a part of the glue or resin will seep into some corners and other places in the housing that are not easily accessible to glue or resin along the glue - seeping grooves 14 on the inner wall in the middle of the housing 1.

[0039] As can be seen from the above, since a plurality of glue seepage grooves 14 are provided on the inner wall of the middle part of the housing 1, when the housing 1 is filled with glue or resin 9 for sealing, part of the glue or resin will seep along the glue seepage grooves 14 on the inner wall of the housing 1 into some areas at the bottom of the housing where it is not easy for the glue or resin to enter (especially at the corners), so that the glue or resin can fill the housing more evenly and effectively, achieving a better glue or resin sealing effect; in addition, since ultrasonic welding is used at the main wire through-hole formed by the upper wire through-hole 21 of the sealing clip 2 and the lower wire through-hole 11 of the housing 1, when filling with glue or resin for sealing, the glue or resin will not leak out from both ends of the housing and affect the quality and appearance of the waterproof connector. At the same time, since the wire positioning plate 5 is sleeved on the branch wire 4, when filling with glue or resin to seal the housing, it can ensure that the branch wire 4 of each connector is in the center position, and there will be no situation where the quality and appearance of the waterproof connector are affected due to deviation to one side. Therefore, the structure of the present utility model is more reasonable, the waterproof sealing effect is better, and the quality of the product is more stable and the appearance is more beautiful.

[0040] In this embodiment, the wire positioning plate 5 is positioned in the housing 1 through a supporting structure 6; the supporting structure 6 includes an open-type positioning plate support 61 provided on the inner wall of the housing 1 and an upper stop 62 that can prevent the wire positioning plate 5 from vertically coming out of the housing 1 before filling with glue or resin 9, and a boss 63 provided on the wire positioning plate 5 and capable of falling on the positioning plate support 61; the distance in height between the positioning plate support 61 and the upper stop 62 corresponds to the thickness of the wire positioning plate 5, so that the wire positioning plate 5 is stuck between the positioning plate support 61 and the upper stop 62. In this way, when filling with glue or resin, the wire positioning plate 5 will not fall out of the housing 1, which helps the mass production of filling glue or resin for the waterproof connector. When the wire positioning plate 5 needs to be disassembled and assembled before filling with glue or resin, the wire positioning plate 5 needs to enter and exit obliquely.

[0041] Preferably, ultrasonic welding is performed at the exposed joint edge of the sealing clip 2 and the housing 1 to prevent the glue or resin from seeping out and affecting the quality of the product when filling with glue or resin.

[0042] Preferably, a plurality of rows of wire separation partitions 15 are provided inside the bottom of the housing 1 to prevent short circuits between the core wires of the main wire 3. In this embodiment, there are two rows of wire separation partitions 15.

[0043] The main wire is usually a two-core or five-core wire, etc. The branch wire 4 can be a two-core, three-core or five-core multi-core wire. In this embodiment, the branch wire 4 is a three-core wire (of course, it can also be a multi-core wire such as a five-core wire), and it is electrically connected to the two main wires 3 through the circuit board 7, such as Figure 2 、 5Embodiments 1 and 2 shown; a circuit board support platform 16 is provided at the bottom of the housing 1, and a lower retaining platform 17 is provided on the inner wall to prevent the circuit board 7 from vertically slipping out of the housing 1 before potting or resin injection; the distance between the circuit board support platform 16 and the lower retaining platform 17 in height corresponds to the thickness of the circuit board 7, so that the circuit board 7 is clamped between the circuit board support platform 16 and the lower retaining platform 17. In this way, when potting or resin injection is carried out, the circuit board will not fall out of the housing, which helps the mass production of potting or resin injection of the waterproof connector; when disassembling and assembling before potting or resin injection, the circuit board should enter and exit obliquely. Of course, it can also be: the branch wire 4 is a two-core wire, and these two core wires are directly connected to the corresponding core wires of the main wire 3 respectively; in this way, when the branch wire 4 is a two-core wire, these two core wires are the live wire and the neutral wire respectively. At this time, the circuit board can be dispensed with, and these two core wires can be connected to the live wire and the neutral wire of the main wire. When the branch wire 4 is a multi-core wire, the main wire must also be a multi-core wire. This kind of waterproof connector is usually used for lighting lamps with functions such as color change, etc.

[0044] In this embodiment, there are two strip-shaped grooves 12 on the same side of the end of the housing 1; there are two flanges 23 on the same side of the sealing clip 2, and they are respectively located on both sides of the hook 22. In this way, in addition to making the installation of the sealing clip more secure, it further prevents the leakage of sealant or resin from the joint between the sealing clip 2 and the housing 1.

[0045] A screw through hole 18 is provided on the housing 1. During installation, after the screw passes through the screw through hole 18, the housing of the connector is installed and fixed on the surface of a strip-shaped lamp such as a wall washer lamp or a strip light. Of course, in some cases, instead of using screws to fix the waterproof connector, another clamping buckle is used to fix the housing. In this case, in order to reduce the short circuit of the branch wire 4 caused by the infiltration of rainwater or water vapor, a sealing gasket 8 is provided in the concave position 52 of the wire positioning plate 5, and it is usually injection-molded in the concave position 52 of the wire positioning plate 5; the wire positioning plate 5 is provided with a convex ring 53 at the wire positioning hole 51. The convex ring 53 prevents the inflow into the wire positioning hole 51 during injection molding of the sealing gasket, and during use, it prevents the wire from being cut when passing through the lamp body aluminum profile of the wall washer lamp or the strip light, and strengthens the strength with the lamp profile.

[0046] In the description of the present invention, it should be understood that when terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are used to indicate the orientation or position relationship, it is based on the usual installation orientation of the product, or the orientation or position relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0047] Although the present utility model has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art from this disclosure that various changes or modifications can be made to the present utility model without departing from the principles and spirit scope defined by the claims. Therefore, the detailed description of the embodiments of this disclosure is only for explanation and not for limiting the present utility model, but the scope of protection is defined by the content of the claims.

Claims

1. A three-way waterproof connector, characterized in that, It includes a housing, two sealing clips, two main wires, branch wires, and a wire positioning plate, where: The housing is a strip-shaped outer shell; on the bottom surfaces at both ends of the housing, there are lower wire passing holes, on the inner walls at both ends, there are strip-shaped grooves and hook grooves, and on the inner wall in the middle, there are multiple glue seepage grooves; On the bottom surface of the sealing clip, there is an upper wire passing hole, and on both sides, there are hooks that can be hooked in the hook grooves and flanges that match the strip-shaped grooves; after the flange of the sealing clip slides into the strip-shaped groove, the hook is hooked in the hook groove; Among the two main wires, one end of one main wire is provided with a male connector, and one end of the other main wire is provided with a female connector that matches the male connector; after the other end of the main wire is inserted into the housing and the sealing clip is installed, while the main wire is clamped by the main wire passing hole formed by the upper wire passing hole of the sealing clip and the lower wire passing hole of the housing, the hook of the sealing clip is hooked in the hook groove of the housing; ultrasonic welding is performed at the main wire passing hole; One end of the branch wire is connected to the main wire, and the other end extends out of the housing; In the middle of the wire positioning plate, there is a wire positioning hole for sleeving on the branch wire; the wire positioning plate is sleeved on the branch wire and then installed in the housing; After the sealing clip, main wire, branch wire, and wire positioning plate are installed in the housing, glue or resin is poured into the housing for sealing.

2. The three-way waterproof connector according to claim 1, characterized in that, The wire positioning plate is positioned in the housing through a supporting structure; the supporting structure includes an open-type positioning plate support platform provided on the inner wall of the housing and an upper retaining platform that can prevent the wire positioning plate from vertically disengaging from the housing before pouring glue or resin, and a convex platform provided on the wire positioning plate and capable of falling on the positioning plate support platform; the distance in height between the positioning plate support platform and the upper retaining platform corresponds to the thickness of the wire positioning plate.

3. The three-way waterproof connector according to claim 1, characterized in that, Ultrasonic welding is performed at the exposed joint edge of the sealing clip and the housing.

4. The three-way waterproof connector according to claim 1, wherein Inside the bottom of the housing, there are several rows of wire dividing partitions.

5. The three-way waterproof connector according to any one of claims 1 to 4, characterized in that, The branch wire is a multi-core wire, and it is electrically connected to the two main wires through a circuit board; at the bottom of the housing, there is a circuit board support platform and on the inner wall, there is a lower retaining platform that can prevent the circuit board from vertically disengaging from the housing before pouring glue or resin; the distance in height between the circuit board support platform and the lower retaining platform corresponds to the thickness of the circuit board.

6. The three-way waterproof connector according to any one of claims 1 to 4, characterized in that, The branch wire is a two-core wire, and the two cores are directly connected to the corresponding cores of the main wire respectively.

7. The three-way waterproof connector according to any one of claims 1 to 4, characterized in that, There are two strip-shaped grooves on the same side of the housing end; there are two flanges on the same side of the sealing clip, and they are respectively located on both sides of the hook.

8. The three-way waterproof connector according to any one of claims 1 to 4, characterized in that There are screw passing holes on the housing.

9. The tee waterproof connector according to any one of claims 1 to 4, characterized in that, A sealing gasket is provided in the recess of the wire positioning plate.

10. The three-way waterproof connector according to claim 9, characterized in that, The sealing gasket is injection-molded in the recess of the wire positioning plate; the wire positioning plate is provided with a convex ring at the wire positioning hole.

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