CN211295410U - Wiring device suitable for processing switching power supply by soaking three-proofing - Google Patents
Wiring device suitable for processing switching power supply by soaking three-proofing Download PDFInfo
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- CN211295410U CN211295410U CN201922287682.XU CN201922287682U CN211295410U CN 211295410 U CN211295410 U CN 211295410U CN 201922287682 U CN201922287682 U CN 201922287682U CN 211295410 U CN211295410 U CN 211295410U
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Abstract
The utility model provides a wiring device suitable for processing a switch power supply by three proofing, which comprises a shell, a wiring seat, a lead pin and a wiring screw, wherein the shell is integrally formed by a mounting plate, a rear plate, more than 3 partition plates and 2 mounting and fixing plates; more than 4 installation intervals are arranged on the installation plate; the mounting plate is provided with 1 guide pin mounting hole in each mounting interval, and the wire holder is fixedly provided with 1 guide pin mounting hole in each mounting interval; every connection terminal respectively disposes 1 and draws needle and 1 wiring screw, and its structural feature is: the back plate of the shell is a seamless plate body, and the guide pin is in interference fit and seamless fixed connection with the inner wall of the guide pin mounting hole of the mounting plate; the lower end of the binding screw is not visible relative to the lower end face of the mounting plate. The utility model discloses a with wherein lower part global design one-tenth seal structure, make it locate on the circuit board dip in three proofings paint in can fundamentally stop three proofings paint and climb on connection terminal and wiring screw when carrying out three proofings and handling.
Description
Technical Field
The utility model relates to a switching power supply field, concretely relates to be suitable for soak termination that three proofings processing switching power supply used.
Background
Switching power supplies are generally used as power conversion equipment for converting ac mains power into dc power, and are widely used in production and life. The switching power supply generally includes a housing, a circuit board disposed in the housing, and a wiring device disposed on the housing and exposed from the housing and electrically connected to the circuit board, wherein the wiring device is disposed on the circuit board 100 as shown in fig. 1. When the switch power supply is used, the switch power supply is electrically connected with a front-end power supply such as commercial power through the wiring device, and simultaneously, the switch power supply is electrically connected with rear-end working equipment through the wiring device to provide a working power supply for the switch power supply, so that the switch power supply normally works, and the wiring device has the requirements that the external connection wiring is firm and reliable and can pass large current. The current universal wiring device for the switching power supply is shown in fig. 2-4, and mainly comprises a shell 1 made of an insulating material (usually plastic), a wire holder 2 fixedly arranged in a plurality of installation intervals of the shell 1, a lead pin 3 integrally connected with the wire holder 2 and extending towards the lower part of the shell for being electrically connected with a circuit board 100 of the switching power supply, a wiring screw 4 in threaded fit with the wire holder 2 for wiring and tightening, and the like, wherein the shell 1 is an injection molding part, and the shell 1 is integrally formed by a mounting plate 11, a rear plate 12, a plurality of partition plates 13 and 2 mounting and fixing plates 14. In order to save materials, the mounting plate 11 of the shell 1 is provided with a guide pin through hole 11-1, a screw connecting hole 11-2 and a wire holder abdicating hole 11-3 which are communicated up and down in each mounting interval from front to back, and the rear plate 12 is provided with a through hole 12-1 which is communicated back and forth in the middle upper part of each mounting interval.
The switch power supply in the south of the Yangtze river, coastal areas, military use, and application occasions such as a gate control system and an outdoor barrier control system used by a water conservancy system in China all need to be treated in a three-prevention mode, wherein the three-prevention mode refers to moisture resistance, salt mist resistance and mold resistance, so that the switch power supply can be reliably used in the application occasions. At present, switch power supply manufacturers all adopt assembly line production, and a method for performing 'three-proofing' treatment on a switch power supply generally comprises the step of immersing a circuit board 100 provided with a wiring device shown in fig. 1 into three-proofing paint for painting. However, as mentioned above, in the wiring device of the switching power supply commonly used at present, since each mounting space on the mounting plate 11 and the rear plate 12 of the housing 1 has a corresponding hole, when the circuit board is subjected to the three-proofing treatment, the three-proofing paint can climb onto the wire holder 2 and the wiring screw 4 from the holes, and when the switching power supply is electrified and works for a long time, the three-proofing paint on the wire holder 2 and the wiring screw 4 can cause the increase of contact resistance and the reduction of conductive performance, so that the output voltage of the switching power supply is reduced, and the abnormal work of the electric equipment may be caused; in severe cases, the wire holder 2 and the wire connecting screw 4 can burn the shell 1 and even cause fire due to heat generation caused by large contact resistance. Therefore, it is necessary to develop a wiring device which is effectively suitable for processing a switching power supply by soaking in three-proofing.
SUMMERY OF THE UTILITY MODEL
The utility model aims at: aiming at the problems in the prior art, the wiring device suitable for the three-proofing soaking treatment of the switching power supply is provided, and the device can effectively solve the technical problem caused by the fact that three-proofing paint climbs on a wiring seat and a wiring screw when the switching power supply is subjected to the three-proofing soaking treatment through the improvement of a shell structure and a component mounting mode.
The technical scheme of the utility model is that: the utility model discloses a be suitable for soaking termination that three proofings were used to handle switching power supply, including casing, connection terminal, lead pin and wiring screw, above-mentioned casing is the integrative piece of injection moulding, and connection terminal, lead pin and wiring screw are the conductor; the shell is integrally formed by a mounting plate, a rear plate arranged behind the mounting plate, more than 3 partition plates arranged on the mounting plate and 2 mounting and fixing plates arranged on the left side and the right side of the mounting plate and the rear plate; the mounting plate is divided into more than 4 mounting intervals by the 2 mounting fixing plates, more than 3 partition plates and the rear plate; the mounting plate is provided with 1 guide pin mounting hole which is communicated up and down in each mounting interval, and the wire holder is fixedly provided with 1 guide pin in each mounting interval on the mounting plate; every connection terminal respectively disposes 1 and draws needle and 1 wiring screw, and the upper end and the connection terminal of drawing the needle are integrative or fixed connection, and the lower extreme of drawing the needle is worn out downwards in the needle mounting hole of mounting panel, and wiring and tight line when wiring screw and connection terminal screw-thread fit are used for using, and its structural feature is: the back plate of the shell is a seamless plate body, and the guide pin is in interference fit and seamless fixed connection with the inner wall of the guide pin mounting hole of the mounting plate; the lower end of the binding screw is not visible relative to the lower end face of the mounting plate.
The utility model discloses has positive effect: the utility model discloses a be suitable for soak termination that three proofings processing switch power supply used, it all adopts the sclausura through mounting panel and the back plate with the casing, seamless structure, the mounting means that will draw the needle and wear out downwards from the mounting panel improves for drawing needle and the seamless tight fit of mounting panel interference fit, the lower extreme does not expose in the improvement of series structure such as the lower terminal surface of mounting panel and installation relation during the binding screw stringing, make it when using, can fundamentally solve current termination and do when soaking three proofings processing paint the contact resistance who brings on wire holder and the binding screw increase, electric conductive property reduces, generate heat on wire holder and the binding screw and burn out the casing and cause technical problem such as conflagration even.
Drawings
Fig. 1 is a schematic structural diagram of a configuration manner of a wiring device of a switching power supply on a circuit board;
FIG. 2 is a schematic diagram of a wiring device according to the prior art;
FIG. 3 is a bottom view of FIG. 1;
FIG. 4 is a perspective view of a wiring device according to the prior art;
fig. 5 is a schematic structural view of the present invention;
FIG. 6 is a bottom view of FIG. 5;
fig. 7 is a schematic perspective view of the present invention;
fig. 8 is a sectional view taken along line a-a of fig. 5.
The reference numbers in the above figures are as follows:
the device comprises a shell 1, a mounting plate 11, a lead pin through hole 11-1, a screw connecting hole 11-2, a wire holder abdicating hole 11-3, a rear plate 12, a through hole 12-1, a partition plate 13 and a mounting fixing plate 14;
a wire holder 2; a needle 3; a wiring screw 4;
a circuit board 100.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
(example 1)
Referring to fig. 5 to 8, the wiring device suitable for processing the switching power supply with three-proofing treatment in the embodiment mainly comprises a housing 1, a wire holder 2, a lead pin 3 and a wiring screw 4.
The housing 1 is an injection molded integral piece. The shell 1 is composed of a left-right horizontally arranged mounting plate 11, a left-right vertically arranged back plate 12 behind the mounting plate 11, more than 3 partition plates 13 vertically arranged on the mounting plate 11 in the front-back direction, and 2 mounting fixing plates 14 vertically arranged on the left and right sides of the mounting plate 11 and the back plate 12 in the front-back direction. The mounting plate 11 is divided into at least 4 mounting intervals (at least 2 power inputs and 2 power outputs) by 1 mounting fixing plate 14 and 3 or more partition plates 13 on the left and right sides, respectively, together with the rear plate 12. The mounting plate 11 is provided with 1 vertically through pin mounting hole in each mounting interval, and the back plate 12 is a seamless plate.
The wire holder 2, the lead pin 3 and the binding screw 4 are all conductive pieces. The number of the wire holders 2 is 1 in each installation interval on the installation plate 11; each wire holder 2 is provided with 1 leading needle 3 and 1 wiring screw 4, the upper end of the leading needle 3 is integrated with or fixedly connected with the wire holder 2, the lower end of the leading needle 3 penetrates out of the leading needle mounting hole of the mounting plate 11, and the leading needle 3 is in interference fit with the inner wall of the leading needle mounting hole of the mounting plate 11 and is fixedly connected without gap; the wiring screw 4 is connected with the wiring base 2 in a threaded fit mode for wiring and tightening in use, and the lower end of the wiring screw 4 is not visible relative to the lower end face of the mounting plate 11.
Referring to fig. 2 to 3, the structure of the wiring device suitable for processing the switching power supply with three-proofing treatment according to the present embodiment is changed as follows, compared with the prior art: firstly, screw connection holes 11-2 at the bottom of a mounting plate 11 of a shell 1 in the prior art are eliminated, and a wiring screw 4 is changed from the visible state of the prior art to the invisible state of the lower end surface of the mounting plate 11; secondly, the guide pin through hole 11-1 of the mounting plate 11 of the shell 1 is changed into a guide pin mounting hole, and the guide pin 3 penetrates downwards from the guide pin through hole 11-1 with a gap in the prior art and is changed into a seamless fixed connection of the guide pin 3 and the inner wall of the guide pin mounting hole of the mounting plate 11 in an interference fit manner; thirdly, a wire holder abdicating hole 11-3 at the bottom of the mounting plate 11 of the shell 1 in the prior art is eliminated; fourthly, the through hole 12-1 on the back plate 12 of the shell 1 in the prior art is eliminated.
Through the improvement of the above-mentioned casing 1 structure and the installation mode of leading needle 3 and binding screw 4 for the lower part of termination of this embodiment has integrateed a seal structure, and the termination of this embodiment is after installing on circuit board 100, and when circuit board 100 immerges in three proofings paint and lacquer and carry out three proofings and handle, because the lower part is sealed in the termination of this embodiment, three proofings paint does not have the route of climbing to wire holder 2 and binding screw 4, thereby can fundamentally stop three proofings paint to climb on wire holder 2 and binding screw 4. Therefore, the technical problems that when the switching power supply is subjected to three-proofing soaking treatment, the three-proofing paint climbs onto the wire holder and the wiring screw, the contact resistance is increased, the electric conductivity is reduced, and the wire holder and the wiring screw are heated to burn a shell and even cause fire and the like in the conventional wiring device are solved.
The above embodiments are illustrative of the specific embodiments of the present invention, but not limiting to the present invention, and those skilled in the relevant art can also make various changes and modifications to obtain the equivalent technical solutions without departing from the spirit and scope of the present invention, so that all equivalent technical solutions should fall under the protection scope of the present invention.
Claims (1)
1. A wiring device suitable for processing a switching power supply in a three-proofing manner comprises a shell, a wiring seat, a lead pin and a wiring screw, wherein the shell is an injection-molded integrated piece, and the wiring seat, the lead pin and the wiring screw are conductive pieces; the shell is integrally formed by a mounting plate, a rear plate arranged behind the mounting plate, more than 3 partition plates arranged on the mounting plate and 2 mounting and fixing plates arranged on the left side and the right side of the mounting plate and the rear plate; the mounting plate is divided into more than 4 mounting intervals by the 2 mounting fixing plates, more than 3 partition plates and the rear plate; the mounting plate is provided with 1 guide pin mounting hole which is communicated up and down in each mounting interval, and the wire holder is fixedly provided with 1 guide pin in each mounting interval on the mounting plate; every connection terminal respectively disposes 1 and draws needle and 1 wiring screw, and the upper end and the connection terminal of drawing the needle are integrative or fixed connection, and the lower extreme of drawing the needle is worn out downwards in the needle mounting hole of mounting panel, wiring and tight line when wiring screw and connection terminal screw-thread fit are used for using, its characterized in that: the rear plate of the shell is a seamless plate body, and the guide pin is in interference fit and seamless fixed connection with the inner wall of the guide pin mounting hole of the mounting plate; the lower end of the binding screw is not visible relative to the lower end face of the mounting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922287682.XU CN211295410U (en) | 2019-12-18 | 2019-12-18 | Wiring device suitable for processing switching power supply by soaking three-proofing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922287682.XU CN211295410U (en) | 2019-12-18 | 2019-12-18 | Wiring device suitable for processing switching power supply by soaking three-proofing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211295410U true CN211295410U (en) | 2020-08-18 |
Family
ID=72014429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922287682.XU Active CN211295410U (en) | 2019-12-18 | 2019-12-18 | Wiring device suitable for processing switching power supply by soaking three-proofing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211295410U (en) |
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2019
- 2019-12-18 CN CN201922287682.XU patent/CN211295410U/en active Active
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