CN2135837Y - Display luminous ceramic pluging type fuse - Google Patents
Display luminous ceramic pluging type fuse Download PDFInfo
- Publication number
- CN2135837Y CN2135837Y CN 92228262 CN92228262U CN2135837Y CN 2135837 Y CN2135837 Y CN 2135837Y CN 92228262 CN92228262 CN 92228262 CN 92228262 U CN92228262 U CN 92228262U CN 2135837 Y CN2135837 Y CN 2135837Y
- Authority
- CN
- China
- Prior art keywords
- fuse
- bulb
- lamp holder
- key
- circuit
- 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 - Fee Related
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Abstract
The utility model discloses a novel porcelain plug fuse with the functions of display and illumination. The porcelain plug fuse is characterized in that a lamp cap with a key and a bulb are installed on the ordinary porcelain plug fuse, and the bulb is connected in parallel with the fuse. During use, the key on the lamp cap is in the closed circuit state. If the fuse is burned out or the fuse cover is pulled out, the bulb gives out light, which achieves the purpose of providing light and displaying in the process of changing fuse. The bulb does not give out light when the inside of the fuse is in the closed circuit state. When the user side needs to be cut off the power source, the purpose can be achieved by pulling out the fuse cover and switching the key on the lamp cap into the open-circuit state.
Description
Whether the utility model relates to a kind of improved ceramic pluging type fuse, particularly can fuse by indication fuse, and can provide the ceramic pluging type fuse of illumination for changing fuse, is suitable for the overload and the short-circuit protection of 220 volts of lighting circuits.
Existing ceramic pluging type fuse is mainly by fuse porcelain lid, copper plug, fuse porcelain seat shell, and copper tip constitutes, and the ceramic pluging type fuse of selling on the market is exactly this form.When will on have the ceramic pluging type fuse of fuse to insert lighting circuit, then can the short circuit and the overload of user side be shielded.Lighting circuit is equipped with two ceramic pluging type fuses usually, in case short circuit or overload appear in user side, common wherein fuse failure that fuse is interior is cut off the electricity supply automatically, and can all do not fused by two interior fuses of fuse.But opening circuit of lighting circuit, we can not judge line broken circuit or fuse opens circuit from outward appearance, can not judge that the fuse in which fuse opens circuit, particularly change fuse night, very dark, operate by the ambient light source lighting, very inconvenient.Therefore, general ceramic pluging type fuse can not judge directly whether fuse opens circuit from outward appearance, changes fuse palpus ambient light source lighting night, and this makes troubles with dangerous for inspection and maintenance outage work.
Task of the present utility model is that a kind of improved ceramic pluging type fuse will be provided, and it can show automatically whether the interior fuse of fuse cuts off the power supply and be to change the fuse illumination.
Task of the present utility model is finished as follows: draw two leads from two copper tips of ceramic pluging type fuse porcelain seat and be connected with the lamp holder that has telegraph key two binding post sheets that are installed in porcelain seat shell one side respectively, realize that incandescent lamp is in parallel with fuse.The rated voltage of incandescent lamp is 220 volts, and rated power is benefit with 15 watts.When this ceramic pluging type fuse inserts lighting circuit, make the lamp holder telegraph key of porcelain seat shell one side be in channel status.Circuit just often, and is because incandescent lamp is by the fuse short circuit, then not luminous.When short circuit or overload appear in user side, then wherein the interior fuse of a fuse is disconnected, miniature bulb is connected with the user side all-in resistance, because user side at this moment all-in resistance is zero (short circuit) or minimum (overload), 220 volts of lighting circuit voltages are added in or nearly all are added on the miniature bulb, then miniature bulb is normally luminous, thereby indication fuse fuses; When extracting fuse porcelain lid replacing fuse, miniature bulb brightness is constant, is the operation illumination.After fixing a breakdown, the fuse porcelain of first-class fuse is covered into fuse porcelain seat shell, miniature bulb is extinguished automatically by the fuse short circuit, does not influence the operate as normal of fuse.When maintenance circuit user side must break away from power supply, need only pull up fuse porcelain lid, and telegraph key beaten at open-circuit condition both can.
The utility model is simple in structure, easy to operate, all functions of the existing ceramic pluging type fuse of tool, and increased and show in the fuse work that whether fuse opens circuit and can provide the purpose of light source for changing fuse, gives the outage of repairing lighting circuit and change fuse to bring great convenience and safety.
Below with reference to accompanying drawing utility model is described in further detail.
Fig. 1 is the local longitudinal sectional drawing in the back side of the present utility model.
Fig. 2 looks the lamp holder profile for a left side of the present utility model.
Fig. 3 is a vertical view of the present utility model.
Fig. 4 is a schematic diagram of the present utility model.
With reference to Fig. 1, tongue (12) and wire casing (13), (14) are fired into an integral body with fuse porcelain seat (9), constitute the utility model porcelain seat housing.Tongue (12) is for fixedly moulding the device of casting lamp holder (2), and wire casing (13), (14) be in order to laying, lead (5), and groove length and width, dark corresponding with protruding hand (6) is as the criterion can fix protruding hand (6), and the wide 3mm of wire casing is beneficial deeply about 5mm.The protruding hand of moulding on the casting lamp holder (6) is embedded tongue (12) (fixing protruding hand (6) is as a whole with shell of lamp base (2), makes with the white plastics of insulation).Lamp holder tongue (18) and binding post sheet (16), lamp holder reed (20) and the movable edge of a knife (8) base of lamp holder telegraph key, lamp holder telegraph key fixed contact (17) and binding post sheet (15) are screwed respectively on the relevant position of shell of lamp base (2).Moulding casting shell of lamp base lid (4) tightly covers on shell of lamp base (2) by elastic pressure.Shell of lamp base (2) and lid (4) have wire hole (3) and the power supply key edge of a knife changes 90 ° thorough cut (7).Two ends that are surrounded by the copper flexible cord (5) of insulation sheath are distinguished soldering on two binding post sheets (15) and (16), and draw from wire hole (3).Lead lays along the wire casing on the porcelain seat shell, and the other end is used the wiring spacers respectively and linked together with fixed contact fixed screw (11) and (21) in the fuse, realizes that incandescent lamp is in parallel with fuse.
The installation method of realization lamp holder (2) and fuse housing (9) more than is provided and has selected cutter formula lamp holder telegraph key for use, can select other method and lamp holder telegraph key in the reality as required for use.
The utility model is inserted lighting circuit (press dress method and existing ceramic pluging type fuse with).During operation porcelain lid (10) is connected fuse and be incorporated into porcelain seat housing (9), and the movable edge of a knife of telegraph key (8) is beaten at vertical position, make telegraph key be in channel status, incandescent lamp (1) is in parallel with fuse, during the fuse operate as normal, incandescent lamp (1) is by the fuse short circuit, and is not luminous.When user side because of short circuit or when overload, wherein a fuse opens circuit, the incandescent lamp of this fuse side is luminous.Pull up porcelain lid (10), incandescent lamp (1) brightness is constant, and for changing the fuse illumination, when the porcelain that connects fuse covered into porcelain seat (9), incandescent lamp (1) was extinguished again by short circuit, does not influence the operate as normal of fuse.When the repairing lighting circuit need cut off being connected of user side and power supply, pull up the porcelain lid, and the incandescent lamp telegraph key edge of a knife is beaten at horizontal level, telegraph key place open-circuit condition both can.
Claims (3)
1, one by fuse base shell (9), fuse cover (10), copper plug,
The novel ceramic pluging type fuse that copper tip (22) and (23) are formed is characterized in that shell (9) one sides are equipped with the lamp holder (2) and the bulb (1) of a charged key.
2, fuse according to claim 1 is characterized in that: a side of fuse shell (9) is provided with the device of fixing lamp holder (2) and for wire casing (13), (14) of laying lead (5).
3, according to claim 1,2 described fuses, it is characterized in that: two binding post sheets (15) of lamp holder (2) and (16) respectively with the copper tip (22) of fuse base with (23), be connected with screw (11), (21) with lead (5), make the bulb (1) on the lamp holder (2) in parallel with the fuse in the fuse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92228262 CN2135837Y (en) | 1992-07-15 | 1992-07-15 | Display luminous ceramic pluging type fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92228262 CN2135837Y (en) | 1992-07-15 | 1992-07-15 | Display luminous ceramic pluging type fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2135837Y true CN2135837Y (en) | 1993-06-09 |
Family
ID=33771973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92228262 Expired - Fee Related CN2135837Y (en) | 1992-07-15 | 1992-07-15 | Display luminous ceramic pluging type fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2135837Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108878231A (en) * | 2018-05-28 | 2018-11-23 | 金凯 | Electronic instrument protective tube protective device |
-
1992
- 1992-07-15 CN CN 92228262 patent/CN2135837Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108878231A (en) * | 2018-05-28 | 2018-11-23 | 金凯 | Electronic instrument protective tube protective device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |