CN213071599U

CN213071599U - Structure improved dc plug wire

Info

Publication number: CN213071599U
Application number: CN202022478866.7U
Authority: CN
Inventors: 金美都
Original assignee: Zhejiang Anda Wire And Cable Co ltd
Current assignee: Zhejiang Anda Wire And Cable Co ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-04-27
Anticipated expiration: 2030-10-30

Abstract

The utility model provides a direct current plug cord of improvement structure belongs to the wire and cable field. The direct current plug wire with the improved structure comprises a box body, a box cover, a cable and a DC plug, wherein the cable and the DC plug are arranged outside the box body; a gap exists between the top wall of the sealing layer and the inner top wall of the box cover, the abdicating hole is a taper hole with the diameter gradually increasing from top to bottom, a conical surface matched with the taper hole is arranged on the outer surface of the LED lamp bead, and the conical surface is in contact with the wall of the taper hole to form sealing. The utility model discloses water-proof effects is good.

Description

Structure improved dc plug wire

Technical Field

The utility model belongs to the wire and cable field relates to a direct current plug cord, especially a direct current plug cord of improvement structure.

Background

Generally, a power plug does not have a function of power-on indication, and after the power plug is inserted into a socket, people cannot judge whether the power plug is powered on or well contacted by the power plug, and can only judge through a test pencil or a connected electric appliance, so that inconvenience is brought to users.

In view of the above problems, the shortcomings have been recognized and improved, such as a DC plug cord (application No. 201220245028.8) disclosed in chinese patent library, which comprises a plastic housing, a connecting wire, a circuit board and a DC plug, wherein the circuit board is disposed in the plastic housing, and an indicator light for indicating whether a circuit is connected is disposed on the circuit board; the DC plug is arranged at the front end of the plastic shell, the connecting wire is connected to the rear end of the plastic shell, and the circuit board is connected with the connecting wire and the DC plug respectively.

In the above-mentioned plug cord, waterproof performance is relatively weak through plastic casing realization alone.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problems in the prior art, and provides a direct current plug wire with an improved structure and good waterproof effect.

The purpose of the utility model can be realized by the following technical proposal: the direct current plug wire with the improved structure comprises a box body, a box cover, a cable and a DC plug, wherein the cable and the DC plug are arranged outside the box body, a circuit board used for connecting the DC plug and the cable is horizontally arranged in the box body, a first through hole and a second through hole are formed in the side wall of the box body and used for the cable and the DC plug to extend into, an LED lamp bead is arranged on the upper side of the circuit board, and a abdicating hole used for the upper side of the LED lamp bead to extend out is arranged on the box cover in a penetrating mode; there is the clearance between sealing layer roof and the lid inner roof, and the hole of stepping down is the taper hole that the diameter gradually becomes big from top to bottom, is equipped with the conical surface that matches with the taper hole on the LED lamp pearl surface, and the conical surface and the contact of taper hole pore wall form sealedly.

In actual processing, the circuit board, the cable, the DC plug and the LED lamp beads are connected, then epoxy resin is filled into the box body, so that the circuit board and the cable are positioned in the box body, the DC plug is positioned in the box body, and the lower sides of the LED lamp beads are positioned in the sealing layer, the circuit board and the external environment are completely isolated, an effective waterproof effect is achieved, and the service life and the working stability are prolonged; meanwhile, the conical surface on the outer surface of the LED lamp bead is in contact with the wall of the conical hole to form sealing, so that water can be effectively prevented from entering the box body, the contact difficulty of the circuit board and the water is further increased, and the waterproof effect is improved.

In the DC plug wire with the improved structure, the sealing layer extends in the direction of the second through hole to form a sealing part with a shape and a size matched with those of the second through hole, and the cable of the DC plug is inserted into the sealing part and is formed into a whole. Namely, the DC plug is hermetically and fixedly connected with the box body only by using epoxy resin, and has the advantages of simple structure and convenient assembly.

In the direct current plug cord of the improved structure, the second through hole is conical, the aperture of the second through hole is gradually reduced from the inside of the box body to the outside of the box body, and at the moment, the sealing part is conical matched with the second through hole.

In the direct current plug cord of foretell improvement structure, the shape and the size of lid all match with the box body, and lid and box body closely cooperate and link firmly, and the box body roof sticiss on the roof in the lid, have the convenient advantage of equipment.

In the direct current plug cord of foretell improvement structure, have convex cylinder on the box body internal wall, the both ends of circuit board all have the connecting hole that is vertical run through, and the cylinder has two, and two cylinder upper ends are pegged graft respectively in two connecting holes, and have on the cylinder to support the shaft shoulder that presses on the circuit board diapire. The posts are designed to pre-position the circuit board to prevent the circuit board from shifting during potting.

In the above-mentioned direct current plug cord of improvement structure, be equipped with on the lid lower extreme inside wall and be conical ring shape's spigot surface, and the spigot surface extends to the lid diapire to be convenient for lid and box body installation.

Compared with the prior art, this direct current plug cord of improvement structure has following advantage:

1. circuit board, cable are in the box body inside part, DC plug are in the box body inside part, LED lamp pearl downside all is in the sealing layer to completely cut off circuit board and external environment, play effective water-proof effects, come increase of service life and job stabilization nature.

2. The conical surface on the outer surface of the LED lamp bead is in contact with the wall of the conical hole to form sealing, so that water can be effectively prevented from entering the box body, the contact difficulty of the circuit board and the water is further increased, and the waterproof effect is improved.

3. The DC plug is fixedly connected with the box body in a sealing manner only by using epoxy resin, and has the advantages of simple structure and convenience in assembly.

Drawings

Fig. 1 is a schematic top view of the dc plug cord.

Fig. 2 is a schematic sectional view of the dc plug cord.

Fig. 3 is a structural schematic view of the box cover.

In the figure, 1, a box body; 1a, a column body; 1a1, shoulder; 2. a box cover; 2a, a yielding hole; 2b, a guide surface; 3. a cable; 4. a DC plug; 5. a circuit board; 6. LED lamp beads; 6a, a conical surface; 7. a sealing layer; 7a and a sealing part.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 and 2, the DC plug wire with the improved structure includes a box body 1, a box cover 2, and a cable 3 and a DC plug 4 respectively disposed outside two sides of the box body 1. The horizontal circuit board 5 that is equipped with in the box body 1, run through respectively on the 1 lateral wall of box body and be equipped with through-hole one and through-hole two, 3 one ends of cable stretch into box body 1 through-hole one and be connected with circuit board 5 electricity, and DC plug 4's cable stretches into box body 1 through-hole two and is connected with circuit board 5 electricity, and LED lamp pearl 6 is installed to 5 upsides of circuit board, and runs through on the lid 2 to be equipped with the hole of stepping down 2a that supplies the 6 upsides of LED lamp.

The connection mode of the box body 1 and the box cover 2 is as follows: the lid 2 cover is outside 1 upper ends of box body, and the shape and the size of lid 2 all match with box body 1, and lid 2 and box body 1 closely cooperate and link firmly, and 1 roof of box body sticiss on 2 interior roof of lid, have the convenient advantage of equipment. Further, the inner side wall of the lower end of the box cover 2 is provided with a conical annular guide surface 2b, and the guide surface 2b extends to the bottom wall of the box cover 2, so that the box cover 2 and the box body 1 can be conveniently installed.

The circuit board 5 is positioned as follows: the bottom wall has convex cylinder 1a in box 1, and cylinder 1a is vertical setting. The two ends of the circuit board 5 are provided with connecting holes which vertically penetrate through, the number of the columns 1a is two, the upper ends of the two columns 1a are respectively inserted into the two connecting holes, and the columns 1a are provided with shaft shoulders 1a1 which are pressed on the bottom wall of the circuit board 5. The column 1a is designed to pre-position the circuit board 5 to prevent the circuit board 5 from shifting during potting.

Particularly, the embedment has epoxy in the 1 lower extreme of box body so that form and the sealing layer 7 that the size all matches with box body 1, and at this moment, circuit board 5, 6 downside of LED lamp pearl and DC plug 4 and cable 3 are all located inside sealing layer 7, and through-hole one and through-hole two are all just setting up sealing layer 7 in the part of box body 1. A gap is formed between the top wall of the sealing layer 7 and the inner top wall of the box cover 2. As shown in fig. 2 and 3, the receding hole 2a is a taper hole with a diameter gradually increasing from top to bottom, a conical surface 6a matched with the taper hole is arranged on the outer surface of the LED lamp bead 6, and the conical surface 6a contacts with the wall of the taper hole to form sealing. During actual processing, connect circuit board 5 and cable 3, DC plug 4 and LED lamp pearl 6 earlier, pour into epoxy in toward box body 1 after that, make circuit board 5, cable 3 be in 1 inside parts of box body, DC plug 4 be in 1 inside parts of box body, LED lamp pearl 6 downside all is in sealing layer 7 to completely cut off circuit board 5 and external environment, play effective water-proof effects.

Further, the sealing layer 7 extends in the direction of the second through hole to form a sealing part 7a with a shape and a size matched with the second through hole, and the cable of the DC plug 4 is inserted into the sealing part 7a and is formed into a whole. Namely, the DC plug 4 is fixedly connected with the box body 1 in a sealing way only by using epoxy resin, and has the advantages of simple structure and convenient assembly. Preferably, the second through hole is tapered, the aperture of the second through hole is gradually reduced from the inside of the box body 1 to the outside of the box body 1, and at the moment, the sealing part 7a is tapered to match with the second through hole.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The direct current plug wire with the improved structure comprises a box body (1), a box cover (2), a cable (3) and a DC plug (4) which are arranged outside the box body (1), a circuit board (5) used for connecting the DC plug (4) and the cable (3) is horizontally arranged in the box body (1), a first through hole and a second through hole which are used for the cable (3) and the DC plug (4) to extend into are respectively arranged on the side wall of the box body (1), an LED lamp bead (6) is arranged on the upper side of the circuit board (5), and a abdicating hole (2a) used for the upper side of the LED lamp bead (6) to extend out is arranged on the box cover (2) in a penetrating manner, and the direct current plug wire is characterized in that epoxy resin is encapsulated in the lower end of the box body (1) to form a sealing layer (7) with the shape and the size matched with the box body (1), the circuit board (5), the lower side of the LED lamp bead (6, the first through hole and the second through hole are arranged opposite to the sealing layer (7); there is the clearance between sealing layer (7) roof and the roof in lid (2), and hole (2a) of stepping down is the taper hole that the diameter gradually becomes big from top to bottom, is equipped with conical surface (6a) that match with the taper hole on LED lamp pearl (6) the surface, and conical surface (6a) and taper hole pore wall contact form sealedly.

2. The improved structure of the direct current plug cord as claimed in claim 1, wherein the sealing layer (7) extends in the direction of the second through hole to form a sealing portion (7a) with a shape and a size matching with the second through hole, the cable of the DC plug (4) is inserted into the sealing portion (7a) and the two are formed as a whole.

3. The improved structure of the direct current plug cord according to claim 2, wherein the second through hole is tapered, and the diameter of the second through hole gradually decreases from the inside of the box body (1) to the outside of the box body (1).

4. The improved structure of the direct current plug cord according to claim 1, wherein the shape and size of the box cover (2) are matched with those of the box body (1), the box cover (2) and the box body (1) are tightly fitted and fixedly connected, and the top wall of the box body (1) is tightly pressed on the inner top wall of the box cover (2).

5. The improved structure of the direct current plug cord of claim 1, wherein the bottom wall of the box body (1) is provided with a protruding column (1a), two ends of the circuit board (5) are respectively provided with a connecting hole which vertically penetrates through the two columns (1a), the upper ends of the two columns (1a) are respectively inserted into the two connecting holes, and the column (1a) is provided with a shaft shoulder (1a1) which is pressed against the bottom wall of the circuit board (5).

6. The improved structure of the direct current plug cord according to claim 4, wherein the inner side wall of the lower end of the box cover (2) is provided with a conical ring-shaped guide surface (2b), and the guide surface (2b) extends to the bottom wall of the box cover (2).