CN2069616U - Protective electrical equipment socket - Google Patents
Protective electrical equipment socket Download PDFInfo
- Publication number
- CN2069616U CN2069616U CN90202459U CN90202459U CN2069616U CN 2069616 U CN2069616 U CN 2069616U CN 90202459 U CN90202459 U CN 90202459U CN 90202459 U CN90202459 U CN 90202459U CN 2069616 U CN2069616 U CN 2069616U
- Authority
- CN
- China
- Prior art keywords
- fuse
- socket
- electrical equipment
- emitting diode
- electric appliances
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Abstract
The utility model discloses a socket which is capable of protecting electric appliances, which is suitable for various electric appliances in a 220V AC circuit and in particular suitable for connecting with the electric appliances with motors such as a refrigerator or a washing machine. In the utility model, the connecting wire of the inner phase wire of the socket which is capable of protecting electric appliances is connected in series with a certain specification of fuse; a light emitting diode and a limiting resistor are connected in series and then are connected with the both ends of the fuse. When the fault current of an electric appliance exceeds a certain value, the fuse is burnt to protect the electric appliance from being damaged; when the fuse is burnt, the light emitting diode illuminates to inform a user that the fault needs to be excluded.
Description
The present invention relates to a kind of improved appliance socket, the particularly a kind of socket that can protect electrical equipment, it is applicable in 220 volts of alternating current circuits and patches electrical equipment.
Existing appliance socket mainly is made up of plastic feet, cover, contact spring, connector lug.The appliance socket of selling on the market is exactly this form.The electrical equipment that on socket, uses often for some reason barrier cause that electric current is excessive and damage, particularly refrigerator, the motored electrical equipment of washing machine one class, when making the fault of rotor stall, electric current is excessive in the stator coil, thereby burn out motor a lot.The socket of selling on the market can not limit the maximum current of socket output now, so it does not possess the effect of protection electrical equipment.Though fuse all is housed on the distribution line, it can not be installed by the rated current of single electrical appliance, and it does not have the effect of the some electrical equipment of protection.
Task of the present invention is that a kind of improved appliance socket will be provided, and it can limit the electric current of this socket output, and the electrical equipment that protection is used not reason electric current is excessive and damage, and it can send out of order signal to the user.
Task of the present invention is finished as follows: a secondary fuse holder is installed between the connector lug of phase line and the contact spring in socket; the fuse of connecting; this fuse adopts the colour TV protective tube; and select certain specification for use according to institute plug-in device; after light-emitting diode and the current-limiting resistance series connection again with the fuse parallel connection, constitute a kind of socket that can protect electrical equipment.The electrical work that on this socket, uses just often, fuse does not influence the function of electrical equipment in the socket, yet extra consume electric power.A light-emitting diode and current-limiting resistance short circuit that is insured can be not luminous, represents working properly.Cause the blowout current of the excessive over insurance silk of electric current when institute's plug-in device breaks down, fuse promptly fuses.At this moment light-emitting diode, current-limiting resistance, institute's plug-in device constitute the loop, and because of current-limiting resistance is 120 kilo-ohms, when supply voltage was 220 volts of normal values, the electric current by electrical equipment had been protected the unlikely damage of electrical equipment less than 2 milliamperes.This electric current flows through light-emitting diode simultaneously makes it luminous, just can see outside the watch window from cover, after the prompting user must fix a breakdown, changes the fuse of same specification again.Why fuse adopts the colour TV protective tube in this socket, impacts because it can tolerate transient high-current.Refrigerator, the motored electrical equipment of washing machine one class all have transient high-current when starting, adopt the colour TV protective tube to suit.This socket is easy to use, and is identical with existing socket during wiring.Fuse is contained on the support in this socket, and it is also convenient to change.During the example structure that describes in detail below using, the part of increase is few, is convenient to make and promote the use of.
Fig. 1 is a part scheme of installation on the base of a kind of concrete structure of the present invention.
Fig. 2 is Fig. 1 socket profile schematic diagram.
Fig. 3 is a basic circuit diagram of the present invention.
With reference to Fig. 1, be cast with fixing hole (6) on the plastic feet (5), electric power incoming line hole (3), the fixing nut of cover (12), being fixed on has contact spring (10), (11), (14) on the base (5), the support of fuse (8), fuse (9) are installed on the support (8), are connected support (8) two ends again after light-emitting diode (1) and current-limiting resistance (7) series connection.Support (8) one ends and contact spring (10) join, and the connector lug of the other end and phase line (2) joins.The connector lug (4) of contact spring (11) and zero line joins, and the connector lug (13) of contact spring (14) and ground wire joins.
With reference to Fig. 2, plastics cover (17) is fixed on the base inner nut (12) with screw (18), is cast with plug on the cover (17) and enters hole (16), light-emitting diode watch window (15).
Claims (4)
1, one by insulator foot [5], cover [17], contact spring [10], [11], [14], the appliance socket that connector lug [2], [4], [13] are formed, feature of the present utility model is the support [8] that fuse is housed between the connector lug [2] of contact spring [10] and phase line, and fuse [9] is installed on the support [8].
2,, it is characterized in that fuse (9) adopts the colour TV protective tube by the appliance socket of claim 1 regulation.
3,, it is characterized in that being connected support (8) two ends again after the series connection of light-emitting diode (1) and current-limiting resistance (7) by the appliance socket of claim 1 or 2 regulations.
4,, it is characterized in that being cast with on the cover (17) window (15) of observing light-emitting diode by the appliance socket of claim 3 regulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN90202459U CN2069616U (en) | 1990-03-03 | 1990-03-03 | Protective electrical equipment socket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN90202459U CN2069616U (en) | 1990-03-03 | 1990-03-03 | Protective electrical equipment socket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2069616U true CN2069616U (en) | 1991-01-16 |
Family
ID=4883862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN90202459U Expired - Lifetime CN2069616U (en) | 1990-03-03 | 1990-03-03 | Protective electrical equipment socket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2069616U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104659603A (en) * | 2014-06-26 | 2015-05-27 | 柳州市够旺贸易有限公司 | Socket |
| CN107732599A (en) * | 2017-11-12 | 2018-02-23 | 宁波润擎电子科技有限公司 | The suppressor and its socket of anti-reverse breakdown |
-
1990
- 1990-03-03 CN CN90202459U patent/CN2069616U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104659603A (en) * | 2014-06-26 | 2015-05-27 | 柳州市够旺贸易有限公司 | Socket |
| CN107732599A (en) * | 2017-11-12 | 2018-02-23 | 宁波润擎电子科技有限公司 | The suppressor and its socket of anti-reverse breakdown |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |