DE7820681U1 - Fuse chamber with removable cover - Google Patents

Description

Applicant:

Blaupunkt-Werke GmbH Eobert-Bosch-Strasse 200

3200 Hildesheim

E. No. 1578

Io

Siciierungslchininer with removable cover ring

The invention relates to a safety system with a removable cover according to the preamble of claim Λ.

R.No. 1578

Such Üicherungskammern are usually for reasons of space only slightly larger than an inserted fuse. Changing the fuse is therefore difficult because at least the removal of the fuse from the chamber requires the use of a tool. Ij Dah3i- it is easily possible that when changing the Securing the contact springs in the chamber bent

so that a secure hold of the newly inserted fuse is at risk. This is for example at Fuses in car radios are particularly disadvantageous, generally a safe one also in the event of vibrations during driving The seat of the fuse must be guaranteed.

x The invention is now based on the object of a

to improve the fuse chamber closable with a removable cover cap so that the exchange or the _Λ (J) removal of the fuse for a test is quick and "easy without" tools

S Damage to the contact springs in the chamber is excluded.

sen is. Furthermore, with the invention, at the same time A firm fit of the fuse in the contact springs of the fuse block can be achieved even in the event of vibrations.

This object is essentially achieved by the invention specified in claim Λ.

Advantageous refinements and developments of the

R.No. 1578
invention are given in the subclaims.

Particular advantages of the invention are achieved in that the fuse is received by a holder, which is preferably made in one piece on the
an existing cover of the open side

d-? r öicheruncEksmner is trained.

üine inserted into the holder according to the invention

Backup can thus be carried out very quickly and without tools

f practically automatically when the cover is put on in |

dii spring contacts inserted in the fuse chamber

and when you remove the cover again from the I.

f spring contacts are removed. |

In a preferred embodiment of the invention:

C, the holder has a spring element, which is a
prevents the fuse from falling out unintentionally
and at the same time forms a counter bearing that secures
when the cover is put on automatically presses into the spring account and also the fuse used in this way
o gives a particularly solid cover that is also secure against vibrations.

The holder according to the invention consists in a particular

H.ITr. 1578

advantageous design essentially consists of a U-shaped, loop-like bracket with one therein formed by a tab forming the spring element, closed except for a split ring, approximately circular or elliptical eye as an up]

Take opening for one that can be pushed in lengthways! Fuse. j

When pushing through a contact cap of the fuse; retreating spring tongue forms in its then v / ieder \ occupied a starting position cooperating with the mutual contact caps stop which prevents the falling out of the sliding in the eye protection.

In a preferred development of the invention, provide on the opposite end wall surfaces of the safety chamber trained entry bevels automatically for the desired alignment or centering of the fuse in the holder and thus for a precise introduction of the fuse into the contact springs. Because of this self-acting Introducing the fuse when putting on the cover, it is not necessary to open the fuse when Insertion into the holder to bring it in a certain position.

In a further advantageous embodiment of the invention is

R.Ur. 1578

it is possible to design the bracket at the same time as a plug-in foot, which is assigned with locking projections in Into the recesses in the side panels.

Further advantages and features of the invention emerge from the following description and the drawing of a preferred embodiment of the invention. ./ Show it:

Pig. 1 and 2 a longitudinal and cross section of an inventive Fuse chamber, which is integrated into a connector housing, for example

is grated, and

. 3 to 5 views of a long side, a front side

and the underside of an inventive

"Cover for the fuse housing after

Pig. 1 and 2 with integrated fuse holder.

One in Pig. 1 and 2 shown fuse chamber 10 encloses a substantially cuboid space, the open top with one in pig. 3 to 5 shown, which can be snapped on, designed as a matching panel Cover 12 is closable.

-. ^ ^. 'Li ... .- ;,' zii. \ - GMBH

B.ffr. 1578

A fuse 14-mit to be inserted into this fuse chamber End contact caps 16, 18 are only shown in FIG. 3 for reasons of clarity.

At the bottom of the backup kainiaer are opposite Contact springs 20, 22 arranged, which the contact caps 16 or 13 of an inserted fuse.

A main feature of the invention is a preferably integrally formed on the cover 12 holder 24- for the Recording of fuse 14-.

The cover 12 with the molded bracket 24- is made from a one-piece plastic molded part that can be manufactured at a particularly low cost.

The bracket 24- is essentially one on the underside the cover arranged U-shaped loop, which the longitudinal edges of the cover 12 preferably etv / a in their Middle connects like a bridge, see in particular Pig. 4-.

A spring element 26 is in the shape of a curved ear into the retaining loop 24 · and encloses with the opposite, curved lower end «* section 28 of the loop is a substantially annular shape

ItI Il

-7-

R.No. 1578

Closed eye yO for receiving the safety device that can be pushed in lengthways. A separation gap 32
at the free end of the tab 26 allows the provided
-Spring movement of the tab.

The by the distance of the tab 26 to the curved

Strap 28 fixed at the lower end of the bracket

Diameter of the eye 30 is chosen so that it is between

d- πι diameter of the glass body and the diameter

of the two contact caps of the fuse. \

Dio beira passage of a contact cap 16 or 18 one;

inserted safety spring retracting tab

26 nmr " ρ ^ t so the glass body of the inserted fuse J

so, i53 the opposite hand edge of the eye each- ' because there is a stop for the opposite end edges

the contact caps 16 and 13 form. This just becomes U

and it prevents the loosely inserted into the eye 30

f the inserted fuse falls out of the holder. |

The celebration tab 26 also forms a counter-bearing, which
the contact caps 16 and 18 when inserting the fuse
in the corresponding Xontalrtfedern 20 and 22 in the
oioherungsketamer presses and in the locked locking position a secure hold against vibrations
Securing in the closed locking chamber guaranteed.

Η.Κρ. 1578

From the top of the opposite end wall surfaces the fuse chamber 10 extending nose-like projections 36 and 38 form with the end faces of the contact caps 16 or 18 of the fuse together! effective inlet slope ^ n, which automatically move the fuse 14 in the eye 30 of the holder 24 when the cover 12 is put on, that the contact caps 16, 18 of the fuse are inserted precisely into the contact springs 20, 22 in the fuse chamber 10 will.

When you lift the cover, the fuse 14 is through the Belt 28 at the curved end of the retaining loop 24 in turn automatically pulled out of the contact springs and can then if necessary still checked in the holder or lightly if necessary be replaced.

ν The insertion and removal of the cover is therefore carried out with the invention is very simple and at the same time accurate by putting on or removing the cover 12 of the fuse chamber 10 with the one-piece molded securing bracket 24.

Further advantages of the embodiment shown of an inventive oicherungskammer consist in that the fuse holder 24 at the same time a retaining member for the one-piece molded cover that latches automatically in the fuse chamber 12 is.

.— .w ι Ό; ■ ...-. ·. '. x.mJ O ¹ NlBH R.Nr. 1578

To produce the aforementioned latching connection, the holder has latching projections 40, 42, which are preferably in the curved end area of the loop

like bracket protrude slightly over the remote outer surfaces of the bracket loop. There are corresponding locking recesses in the opposite side walls of the fuse chamber 10 44 and 46 are provided.

The locking projections 40 and 42 give way during insertion the bracket 24 in the fuse chamber 10 due to the inherent elasticity of the bracket loop 24 resilient

back and then step into the corresponding exception | openings 44 and 46 in the walls of the fuse chamber

10 a.

) The insertion of the holder 24 when inserting the fuse 14 and simultaneous closing of the fuse chamber with the cover 12 can be done by entry bevels 48, 50 above the recesses 44 and 46 in the chamber walls be further facilitated.

The underside of the cover 12 has a step 52 that is slightly set back from the outer edge,

- 10 -

_{-10- ßLAU} pu; ; ντ.ν / ^ κ _Ε GMDH

R.Nr, 1578

j in the fuse chamber 10 matching paragraph 5 ^ - on.

^ The surrounding sand step 52 forms a loading

limit stop to determine the insertion depth

the cover 12 and thus the fuse 14 located ^{in the molded (holder 24-.}

According to FIG. 2, on the upper edge of the end wall surfaces recesses may also be provided in the fuse chamber 10, which allow the cover 12 to be lifted off facilitate.

Fig. 2 also shows that the fuse chamber 10 can be arranged in a connector housing which is attached to a printed circuit board 53 carrying the lines to be linked. The Siciierimgskammer 10 ^s can be between connector chambers 60 with Ilesser-

contacts 62 arranged for Flaöh plug connections be.

- Expectations -

Claims (8)

- 11 - Claims ßLAÜröNltt-WcRXE GHBH E.Hr. 1578 1. The safety chamber can be locked with a detachable cover that clicks into place contact springs provided therein for receiving one from a fusible link with ends Contact caps existing fuse for electrical w tronic, especially telecommunications Devices, characterized in that on the inside of the cover (12) of the fuse chamber there is a holder (24-) for the receptacle a Sicaerung (14 ·, 16, 18) is arranged and designed in such a way that the the cover automatically inserted fuse when removing the cover from the contact springs (20, 22) can also be pulled out automatically. 2. Fuse chamber according to claim 1, characterized in that the holder (24-) a upon insertion a fuse receding spring element (26) through which the fuse (14-, 16, 18) is secured in the holder against falling out, and which at the same time a the Securing when putting on the cover (12) j R.Nr. 1578 in the contact springs (20, 22) pressing support , member or counter bearing forms. 3- security chimney according to claim 1 or 2, characterized characterized in that the holder (24) is a vies ent borrowed U-shaped zv / ischen the lateral Long edges of the cover are striped Loop is that the Eeder element, which is essentially designed as an arcuate tab (26) protrudes into this loop and rides the curved iind portion opposite the flap (28) of the loop (26) an eye (30) which is closed in a ring except for a separating gap (32) forms for receiving the longitudinally retractable fuse (14, 16, 18), the Distance between the spring tab (26) and the loop end (28) is greater than the diameter of the glass body and smaller than the diameter of the end contact caps of the fuse. 4. Fuse according to claim 3, characterized in that on the end wall surfaces of the oicherungskammer (10) nose-like beveled projections (48, 50) - 13 - R.No. 1578 for the exact introduction of the in the eye C30) the Bracket (26, 28) held longitudinally displaceable fuse in the contact springs (20, 22) are provided. 5. Oicherungskammer according to claim 3, characterized in that that on the ger ^ miberli agendas Outer sides of the retaining loop (26) have protrusions (A-O, 42) are provided, which are assigned with the cover (12) in place Recesses (^ 4-, 46) in the side walls of the ^ Fuse chamber (1C) are engaged. I. 6. Safety kainaer according to claim 5 »characterized- ^: indicates, dsß above the .Rastausnehinungen (^ 4-4, 4-6) in the side walls of the fuse (, k-jmner (10) inclined inlet (48, 50) for the ί the locking projections (40, 42) of the holder | (25, 2S) in the associated recesses (44, i 46) of the Kaaia walls are provided. I. 7. .Safety chamber according to one of the preceding claims, characterized in that the - 14 - BLAUPUNKT-WERKE GMBH Ή - R.Nr. 1578 Bracket (24) on a step-like offset (52) with respect to the outer edge, in the the opening of the safety chimney (10) Paragraph (5 ^) on the underside of the cover (12) is arranged. 8. Fuse chamber according to one of the preceding claims, characterized in that the fuse chamber (IO) and the cover (12) with the integrally formed thereon Bracket (24-) are made of plastic.