CN201369463Y - Power supply conversion plug internal waterproof structure with back plug - Google Patents

Abstract

The utility model relates to a take power of back of body grafting to change inside waterproof construction of plug, power plug comprise a shell, plastic built-in, two power conductor pieces, power conversion unit, inner cup and outer back of the body lid, and the power conversion unit comprises circuit board and a plurality of electronic component, and circuit board one end and two power conductor piece electric connection, and the other end is equipped with a plurality of first connection conductor ends for a plurality of electric wires of electric connection. The power supply plug is provided with a circuit accommodating groove in the adjacent two power supply conductor sheets, and a plurality of connecting end accommodating grooves which are adjacent in a zone separation mode and are used for respectively providing power supply conversion units and a plurality of first connecting conductor end arrangements, and an isolation section is respectively arranged between the two adjacent two power supply conductor sheets at the two ends of the circuit accommodating groove and the plurality of connecting end accommodating grooves, so that the circuit accommodating groove and the plurality of connecting end accommodating grooves respectively form independent spaces, therefore, the electronic element of the power supply conversion unit can achieve the purpose of environmental rain measurement and water prevention, and the infiltration of moisture such as rainwater, snow water or fog water is avoided.

Description

The internal waterproof structure of the power conversion plug with back plug

technical field

The utility model relates to a power supply plug, in particular to an improved structure of the power supply plug of an LED lamp string with back plug and voltage stabilizing and rectifying functions.

Background technique

During the assembly and combination of electronic products, whether it is general electrical appliances, LED Christmas light strings, or high-tech electronic products, they must be connected by wires to transmit electronic signals or power. As far as the structure of electrical appliances or LED Christmas light string plugs or tail plugs is concerned, the most traditional way to connect electronic parts and wires is to weld and fix them, or to use a metal copper sleeve to rivet them together, but this method requires internal installation. As far as the plug or socket of IC circuit parts such as voltage stabilization or voltage transformation is concerned, not only the work efficiency is low, but also time-consuming and labor-intensive. For this reason, it is produced by using the combination of male and female terminals.

And with regard to the structure of its power supply plug of LED Christmas light string, there is the patent case " plug (socket) wire conductor snap-in structure improvement " (Taiwan Patent Case No. 097205395, U.S. Patent Application Case No. /081,017, Canadian Patent Application No. 2,630,313), and "Structure Improvement with Power Conversion" patent (Taiwan Patent No. 097205395, US Patent Application No. 12/244,361) and other related previous cases. In order to extend the excellent creativity of the utility model in the previous case, it is further combined with some of its characteristic elements and added to the structural design of the LED Christmas light string and its power plug with a back plug. Therefore, this case can illustrate the creation of the extension of the above two patent cases .

Furthermore, as far as the waterproof effect of the LED Christmas light string is tested in the rain, since the Christmas light string is placed outdoors, it must be able to pass the rain test to avoid the infiltration of rain, snow or fog. inside the plug, causing a short circuit in electronic parts. However, the plugs with back plugs in general light strings with functions such as voltage stabilization or voltage transformation do not have waterproof function. Therefore, there is no relevant actual product on the market at present, and there is only a patent case for power plugs with back plugs. That is, U.S. Patent No. US7,140,920 "Light-emitting diode Christmas light string plug device with voltage stabilizing effect" patent case (hereinafter referred to as the existing case). The conductive sheet is connected with two wires at the other end, and a voltage stabilizing component is arranged on the inner edge thereof, and the voltage stabilizing component is electrically connected to the two conductive sheets and the conductive wires.

However, the above-mentioned prior art only simply arranges the voltage stabilizing component inside the plug, and is located in the same space as one end of the two conductive sheets, so that not only the purpose of waterproofing cannot be really achieved, but also it is used to form the voltage stabilizing component. Electronic components cannot be installed and set up properly, so how to design a waterproof power plug with a back plug has become the direction considered by the creators of this project.

In view of this, the author of the present invention has made in-depth discussions on the above-mentioned existing utility model problems, actively sought solutions through years of experience in research and development and manufacturing in related industries, and finally successfully developed this utility model after long-term hard research and development. The utility model "the internal waterproof structure of the power conversion plug with a back plug" can improve the problems of existing creations.

Contents of the invention

The main purpose of this utility model is to provide a waterproof structure inside the power conversion plug with back plug, which can make the inside of the power plug serve as a voltage stabilizer and rectifier when the power plug with back plug is applied to LED Christmas light strings. The electronic components have an excellent waterproof structure, which improves the quality and performance of the plug.

In order to achieve the purpose of the above utility model, the internal waterproof structure of the power conversion plug with a back plug of the utility model is composed of a shell, a plastic inner part, two power conductor pieces, a power conversion unit, an inner cover, and an outer back cover. plug.

Wherein the housing has a hollow accommodation part inside, and a cylinder with a screw hole protrudes from one side of the accommodation part, so that after the plastic inner part is accommodated, it is covered by the outer back cover And fixed with screw lock. And the vertical direction on one side of the plastic built-in part is provided with a power supply connection portion, and the other side in the horizontal direction forms a circuit accommodation groove, and a plurality of spaced adjacent connection terminal accommodation grooves, and the circuit accommodation Between the two ends of the slot adjacent to the power connection portion and the plurality of connection end accommodation slots, an isolation section is respectively provided, and an electric wire connection portion is formed outside the plurality of connection end accommodation slots. The two power supply conductors and the two fuses can be separately assembled on the power connection part, and the circuit accommodating groove is used for accommodating the power conversion unit, and then the inner cover is used to cover and fix the circuit. The electric wire connecting part is composed of a zigzag groove and a plurality of limiting holes, which are used for auxiliary fixing when the wire conductor of the electric wire is inserted.

Each of the power supply conductor pieces has a front insertion section, a connecting back section and a middle and lower extension section, so that when the two power supply conductor pieces are arranged on the power supply connection, the two front insertion sections and the middle and lower extension sections The power jacks are plugged into groups, and the partitions at the corresponding positions of the two connecting back sections and the power supply connectors are separated into back jacks, and at the same time, the two middle and lower extension sections are electrically connected to the two fuses , and the appropriate part of the outer back cover corresponding to the back jack is formed with two female jack sockets for another plug to be plugged in. The power conversion unit can convert AC power to DC power, and is composed of a circuit board and a number of electronic components. One end of the circuit board is electrically connected to the two power supply leads by the two fuses, and the other end is provided There are a plurality of first connecting conductor ends for electrically connecting the plurality of electric wires. Therefore, by disposing the power conversion unit in the circuit accommodating groove in an independent space, the plurality of electronic components can achieve the purpose of ring-testing rain and waterproof, avoiding the infiltration of rainwater, snow water or mist and other moisture.

The beneficial effect of the utility model is that: it has a good waterproof effect and can effectively avoid the infiltration of water such as rainwater, snow water or foggy water.

Description of drawings

Fig. 1 is a three-dimensional combination appearance diagram of the present utility model;

Fig. 2 is a three-dimensional exploded appearance view of the utility model;

Fig. 3 is another three-dimensional exploded appearance view of the utility model;

Fig. 4 is a combined sectional view of the utility model;

Fig. 5 is another combined sectional view of the utility model;

Fig. 6 is a schematic diagram of the use of the utility model and the power plug with the same function and a back plug;

Fig. 7 is a diagram showing the use of the utility model connected with the power plugs of general electronics, lighting and household appliances (power consumption 100-240 volts).

Explanation of reference signs: 1, 2-power plug; 10-shell; 11-accommodating part; 12-chute; 13-push cover opening; -Plastic built-in parts; 21-circuit storage slot; 211-isolation section; 22-power supply connection; 221-front conductor slot; 222-partition plate; Wire connection part; 25-back jack; 30-power conductor piece; 31-front insertion section; 32-back connection section; 33-middle and lower extension section; 41-fuse; 50-power conversion unit; 51-circuit Board; 52-electronic component; 53-copper sleeve; 54, 54'-the first connecting conductor end; 60-outer back cover; 61-pin ear; 62-screw; 63-female socket; Hole; 71-movable plate; 72-wire; 721-wire conductor; 722, 722'-second connecting conductor end; 73-inner cover; 74-waterproof glue.

Detailed ways

The above-mentioned and other technical features and advantages of the present utility model will be described in more detail below in conjunction with the accompanying drawings.

Please refer to Fig. 1-7, the internal waterproof structure of the power conversion plug with back plug of the utility model includes a power plug 1, and the power plug is composed of a shell 10, a plastic inner part 20, two power conductors 30, a fuse 41. The power conversion unit 50, the outer back cover 60, the inner cover 73, and the wire 72 are composed of components, among which:

The housing 10 is a roughly rectangular shell, and its inner edge has a housing portion 11 for the plastic inner part 20 to accommodate, and a sliding groove 12 is formed at one end adjacent to the housing portion 11 , the cover opening 13 , and the front through hole 14 and other structural parts, and a cylinder 15 with a screw hole 151 protrudes from one side of the accommodating part 11 . The chute 12 is for a movable plate 71 set, so that the movable plate 71 can slide along the chute 12 to close or open the cover push port 13, and the front hole 14 is a communication The open hole of the accommodating part 11 can allow one end of the two power conductors 30 assembled on the plastic inner part 20 to penetrate outward.

The plastic built-in part 20 is roughly in the shape of an inverted L, and one side is vertically provided with a power connection portion 22 for the assembly of the two power conductors 30 and two fuses 41, and the other side is horizontally formed in sequence to form a circuit. The accommodating groove 21, a plurality of adjacent connecting terminal accommodating grooves 23, and the wire connecting portion 24 are adjacent to the power connecting portion 22 and the plurality of connecting ends at the two ends of the circuit accommodating groove 21 An isolation section 211 is provided between the accommodation grooves 23 , so that the circuit accommodation groove 21 and the plurality of connection terminal accommodation grooves 23 form independent spaces.

The power connection portion 22 has a symmetrical front conductor slot 221 , a separator 222 and a receiving slot 223 for combining the two power conductor pieces 30 and the fuse 4 . The circuit accommodating slot 21 and the plurality of connecting terminal accommodating slots 23 can accommodate electronic circuit components corresponding to the power conversion unit 50 respectively. The wire connecting portion 24 is composed of a plurality of zigzag grooves 241 and limiting holes 242 for auxiliary fixing of the wires 72 .

The two power supply conductors 30 are assembled in the front conductor slot 221 of the plastic inner part 20, each of the power supply conductors 30 has a front insertion section 31, a connecting back section 32 and a middle and lower extension section 33. When the two power supply conductor pieces 30 are assembled at the front conductor slot 221, each of the connected rear sections 32 is separated from the partition plate 222 of the conductor inner connection part 22 to form a rear insertion hole 25, Each of the middle and lower extension sections 33 straddles the side of the container 223 for electrically contacting the corresponding fuse 41 .

The power conversion unit 50 has the function of reducing the voltage from 100 to 240 volts to 24 volts or a small voltage for safe use, and can convert alternating current to direct current. , and a plurality of first connecting conductor ends 54 and other components. The circuit board 51 is generally a PCB board with a circuit design, and one end corresponding to the power supply connection part 22 is for the two copper sleeves 53 to be welded and fixed, and the opposite end is for the plurality of copper sleeves 53 to be welded and fixed. The two first connecting conductor ends 54 are adjacently welded, and the plurality of electronic components 52 for voltage stabilization and rectification are arranged in the middle of the circuit board 51 . Wherein the two copper sleeves 53 are electrically connected with the two fuses 41, as the input end of the power supply, and then use the first connection conductor end 54 at the other end and the second wire conductor 721 of the electric wire 72. The connecting conductor end 722 is connected as the output end of the power supply. Moreover, through the design of the circuit board 51 , the plurality of first connecting conductor ends 54 can not only output the converted DC power, but also transmit AC power.

Furthermore, the first connecting conductor end 54 and the second connecting conductor end 722 can provide fast and simple combined positioning when connecting the power transmission line. In terms of design changes and application levels, the first connecting conductor end 54 can be flexible. conductor sheet, and the second connecting conductor end 722 is formed by the wire conductor 721 end edge of the electric wire 72 utilizing metal liquefaction such as solder to be solidified; The second connecting conductor end 722 is clamped in a pressing manner, and the description of the present invention is an embodiment in which an elastic conductor sheet is used as an application. Alternatively, as shown in FIG. 5, another embodiment of the structure is to design the first connecting conductor 54' and the second connecting conductor end 722' as a male-female terminal structure, if the first connecting conductor end 54' is If the male terminal is a male terminal, then the second connecting conductor end 722 ′ is a female terminal; otherwise, if the first connecting conductor end 54 ′ is a female terminal, then the second connecting conductor end 722 ′ is a male terminal.

Based on the above, when the power conversion unit 50 is assembled on the plastic inner part 20, the plurality of electronic components 52 are placed in the circuit accommodating groove 21, and each of the first connecting conductor ends 54 Then, it is arranged in the corresponding connecting end receiving groove 23 and covered and fixed by the inner cover 73 . And a layer of waterproof glue 74 can be applied on the two isolation sections 211, and at the same time, the ends of the two ends of the circuit board 51 that cannot be covered by the inner cover 73 are also coated with a layer of waterproof glue 74 to achieve waterproof effect.

The outer back cover 60 is arranged on the upper end of the housing 10, and one end thereof is inserted and positioned with the housing 10 by means of the two lugs 61, and the other end is fixed at the position of the counterbore 64 by using a screw 62. The cylinder 15 of the housing 10 is used to cover and fix the plastic inner part 20 . And corresponding to the outer surface of the back jack 25, a female jack seat 63 is formed, which is used for inserting the power conductor sheet of another power plug 2 into the back jack 25 from the outside to the inside (not shown in the figure). , to achieve power transmission.

Accordingly, by the above-mentioned structural design, using the circuit board 51 of the power conversion unit 50 together with the plurality of electronic components 52, and the copper sleeve 53, the first connecting conductor end 54, etc., are respectively arranged in separate separate spaces. In the circuit accommodation groove 21, the accommodation groove 223, and the plurality of connection end accommodation grooves 23, a layer of waterproof glue 74 is further applied to the two isolation sections 211 and the two outer ends of the circuit board 51 respectively. The design can indeed provide the excellent waterproof effect of the plurality of electronic circuit parts, so as to achieve the rainproof and waterproof function of the power plug with the back plug used for the LED Christmas light string. And when the utility model is in a rainy environment, the isolated structure between the plurality of connection end accommodation grooves 23 can avoid the short circuit phenomenon caused by the contact between the ends due to the impact of the water medium. In addition, between the output end or the input end of the utility model power supply and the wire conductor 721 of the electric wire 72, the first and second connecting conductor ends 54, 722 of the male and female ends are arranged, so that the combination can provide a convenient program.

In summary, the utility model has its excellent progressive practicability among similar products. At the same time, it has not been found that the same structure exists in the technical data and documents of this type of structure at home and abroad. Therefore, the present invention The utility model has already met the requirements of a new patent, and the application is filed according to law.

The above description is only illustrative of the present utility model, rather than restrictive. Those of ordinary skill in the art understand that many modifications and changes can be made without departing from the spirit and scope defined by the following appended claims. , or equivalent, but all will fall within the protection scope of the present utility model.

Claims (7)

1. An internal waterproof structure of a power conversion plug with a back plug, comprising a power plug, the power plug is provided with two power conductor pieces that are plugged into the power jack, and the AC power can be output through the two power conductor pieces The back jack, and a power conversion unit that can convert AC power into DC power, wherein the power conversion unit has a circuit board and a plurality of electronic components, and one end of the circuit board is electrically connected to the two power supply leads connected, the other end of the circuit board is provided with a plurality of first connecting conductor ends for electrically connecting a plurality of wires, characterized in that: The power plug is provided with a circuit accommodating groove adjacent to the inside of the two power supply conductor pieces, and a plurality of connecting terminal accommodating grooves adjacent to each other. The circuit accommodating groove is used for the power conversion The circuit board and the electronic components of the unit are accommodated, and the connecting terminal accommodating groove is used for setting the plurality of first connecting conductor ends, and the two ends of the circuit accommodating groove are adjacent to the two An isolation section is provided between the power conductor sheet and the plurality of connection terminal accommodation grooves, and the isolation section makes the circuit accommodation groove and the plurality of connection terminal accommodation grooves form independent spaces. 2. The internal waterproof structure of the power conversion plug with back plug according to claim 1, characterized in that, when the power conversion unit is set in the circuit accommodating groove, it is on the two isolation sections respectively. Apply a layer of waterproof glue. 3. The internal waterproof structure of the power conversion plug with a back plug according to claim 1, wherein a second connecting conductor end is fixed on the wire conductor edge of each of the electric wires, and the second connecting conductor end is used for to combine with the corresponding first connecting conductor ends. 4. The internal waterproof structure of the power conversion plug with back plug according to claim 3, characterized in that, the first connecting conductor end and the second connecting conductor end are male and female terminal structures, if the first If the connecting conductor end is a male end, then the second connecting conductor end is a female end; otherwise, if the first connecting conductor end is a female end, then the second connecting conductor end is a male end. 5. The internal waterproof structure of the power conversion plug with back plug according to claim 3, characterized in that, the first connecting conductor end is an elastic conductor sheet, and the second connecting conductor end is formed by the electric wire The end edge of the electric wire conductor is formed by liquefied soldering metal, and when electrically connected, the first connecting conductor end is clamped to the second connecting conductor end in an elastic pressing manner. 6. The internal waterproof structure of the power conversion plug with a back plug according to claim 1, wherein the components of the power plug additionally include a shell, a plastic inner part, an inner cover, and an outer back cover member, so that There is a hollow housing part inside the housing, and a cylinder with a screw hole protrudes from one side of the housing part, so that after the plastic inner part is accommodated, it is covered by the outer back cover and sealed with Screw locks are set and fixed; and a power supply connection is provided on one side of the plastic built-in part in the vertical direction, and the circuit accommodation groove and the plurality of adjacent connection terminal accommodation grooves are formed in the horizontal direction. A wire connecting portion is formed on the outside of the plurality of connection end accommodation grooves, the two power supply conductor pieces and two fuses are respectively assembled on the power supply connecting portion, and the circuit accommodation groove is used for the power conversion unit After accommodating, the upper part is covered and fixed by the inner cover, and the wire connecting portion is used for positioning the wires. 7. The internal waterproof structure of the power conversion plug with back plug according to claim 6, characterized in that each of the power conductor pieces has a front insertion section, a connecting back section and a middle and lower extension section, and the two When the power supply conductor piece is arranged on the power supply connection part, the two front insertion sections are combined with the power jack plug group, and the two rear connection sections are separated from the partition plate at the corresponding position of the power supply connection part. The back jack is electrically connected to the two middle and lower extension sections and the two fuses, and the outer back cover corresponds to the appropriate position of the back jack, and two female jack seats are formed. For use with another plug.

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