CN212413058U - Safe power adapter - Google Patents
Safe power adapter Download PDFInfo
- Publication number
- CN212413058U CN212413058U CN202021188983.3U CN202021188983U CN212413058U CN 212413058 U CN212413058 U CN 212413058U CN 202021188983 U CN202021188983 U CN 202021188983U CN 212413058 U CN212413058 U CN 212413058U
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- Prior art keywords
- power supply
- output
- plug
- switching power
- power adapter
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- Expired - Fee Related
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- 230000003068 static effect Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The utility model discloses a safe type power adapter, including switching power supply and plug XP, the alternating current is connected to the input of plug XP, and there is three routes wiring the output of plug XP, and first the input of connecting switch power supply all the way, second the output DC-of connecting switch power supply and connect the earthing terminal, and another input of third route connecting switch power supply, switching power supply still have output DC +, the utility model discloses safe type power adapter is through the mode with output negative pole ground connection, the effectual production of eliminating static and electric leakage to power adapter's stability and security have been increased.
Description
Technical Field
The utility model relates to the technical field of power, specifically a safe type power adapter.
Background
The Power adapter (Power adapter) is a Power supply conversion device for small portable electronic equipment and electronic appliances, generally comprises components such as a shell, a transformer, an inductor, a capacitor, a control IC (integrated circuit), a PCB (printed circuit board) and the like, and the working principle of the Power adapter is that alternating current input is converted into direct current output; according to the connection mode, the device can be divided into a wall-inserting type and a desktop type. The intelligent anti-theft device is widely matched with security cameras, set top boxes, routers, light bars, massage instruments and other equipment.
The power supply is completely isolated by a high-frequency transformer in the DC conversion process, and the phenomenon of static electrification is mainly caused by induced voltage generated by an electric field in the working process of the high-frequency transformer, wherein the induced voltage can reach 10-30V. Induced voltage is superposed on a secondary winding of a high-frequency transformer, so that the output DC has the leakage phenomenon, and most of the existing power adapters have the static phenomenon or the leakage phenomenon of the DC output end.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a safe type power adapter to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the input end of the plug XP is connected with alternating current, the output end of the plug XP is provided with three paths of wiring, the first path of wiring is connected with one input end of the switching power supply, the second path of wiring is connected with the output end DC-of the switching power supply and is connected with a grounding end, the third path of wiring is connected with the other input end of the switching power supply, and the switching power supply also has one path of output DC +.
As a further technical solution of the present invention: the switching power supply is an AC-DC power supply.
As a further technical solution of the present invention: the plug XP is a three-hole socket.
As a further technical solution of the present invention: the output voltage of the switching power supply is 10-30V.
As a further technical solution of the present invention: and the grounding end is positioned in the switch power supply.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses safe type power adapter is through the mode with output negative pole ground connection, the effectual production of eliminating static and electric leakage to power adapter's stability and security have been increased.
Drawings
Fig. 1 is an electrical schematic diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, embodiment 1: the input end of the plug XP is connected with alternating current, the output end of the plug XP is provided with three paths of wiring, the first path of wiring is connected with one input end of the switching power supply, the second path of wiring is connected with the output end DC-of the switching power supply and is connected with a grounding end, the third path of wiring is connected with the other input end of the switching power supply, and the switching power supply also has one path of output DC +.
For example, in a pet water dispenser, the water pump and the heating sheet generate induction current when working, and the pet can sense when drinking water. Through this return circuit, can conduct away the response electricity through the ground wire plug, this design is through the mode with output terminal negative pole ground connection, the effectual production of eliminating static and electric leakage to the stability and the security that have increased power adapter.
In example 2, the switching power supply is an AC-DC power supply based on example 1. Plug XP is a three-jack socket. The output voltage of the switching power supply is 10-30V. The grounding terminal is positioned in the switch power supply.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. The safety type power adapter comprises a switching power supply and a plug XP, and is characterized in that the input end of the plug XP is connected with alternating current, the output end of the plug XP is provided with three routes of wiring, the first route is connected with one input end of the switching power supply, the second route is connected with the output end DC-of the switching power supply and is connected with a grounding end, the third route is connected with the other input end of the switching power supply, and the switching power supply also has one route of output DC +.
2. The secure power adapter as recited in claim 1, wherein said switching power supply is an AC-DC power supply.
3. The safety power adapter as claimed in claim 1, wherein the plug XP is a three-hole socket.
4. The safety power adapter as claimed in claim 1, wherein the output voltage of the switching power supply is 10-30V.
5. The safety power adapter as claimed in claim 3, wherein the ground terminal is located inside the switching power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021188983.3U CN212413058U (en) | 2020-06-23 | 2020-06-23 | Safe power adapter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021188983.3U CN212413058U (en) | 2020-06-23 | 2020-06-23 | Safe power adapter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212413058U true CN212413058U (en) | 2021-01-26 |
Family
ID=74407956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021188983.3U Expired - Fee Related CN212413058U (en) | 2020-06-23 | 2020-06-23 | Safe power adapter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212413058U (en) |
-
2020
- 2020-06-23 CN CN202021188983.3U patent/CN212413058U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210126 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |