Electrical connectors – With insulation other than conductor sheath – Plural-contact coupling part
Reexamination Certificate
1999-06-08
2001-02-13
Patel, T. C. (Department: 2839)
Electrical connectors
With insulation other than conductor sheath
Plural-contact coupling part
C439S952000, C174S07000A
Reexamination Certificate
active
06186831
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates generally to a link bar for the capacitor of a car audio system. More particularly, the present invention relates to a conjunctive bar used for connecting plural capacitors of car audio system in parallel.
BACKGROUND OF INVENTION
Normally car's battery supplies a car's power system. However, the car's battery may be in shortage when car's audio system needs more power in higher current. This consequently reduces the voice quality of the audio system. It is the reason why a capacitor is placed in parallel between the amplifier of audio system and the battery to prevent the shortage of high current power supply.
A capacitor is capable of charging a large quantity of electric power, and discharges in short time if needed. Thus, a car is, in general, equipped with a capacitor to supply sufficient power needed by the amplifier of audio system, in particular, when the demand for power is large. For example, the audio system is playing a chapter with super bass melody. Moreover, this device can make the bass response of the audio system stronger.
Another object to install capacitor in a car's audio system is to filter out some signal. When the power source connects the amplifier of car's audio system, it usually simultaneously produces some zigzag wave signal. 'I'he zigzag wave signal, then, causes some audible noise signal in the audio system, therefore affecting the voice quality.
According to the forgoing description about the capacitor of a car's audio system, it is the reason why almost every car is equipped with capacitor therein. In general, a single capacitor can not satisfy the watt power needed for car audio. To connect plural capacitors in parallel is, therefore, needed by constructing a link bar between them. There are several locking holes in link bar in order to lock up capacitors together in parallel. The conventional link bar is always designed an unchangeable number of holes, and can not be freely assembled to each other.
Under some conditions, it may be another trouble that the maker needs to create some other types of link bar with different number of holes to meet the condition that the number of desired capacitors differs from the present one. To assemble them after choosing a suitable link bar with correct number of holes is then the other work to get all capacitors been connected together.
For example, as users want to connect two capacitors in parallel, they must choose a link bar
10
shown in FIG.
1
. This link bar
10
has a bolt hole
11
in both ends provided for a bolt
12
to get through and lock on to one pole, positive or negative, of the capacitor
20
to connect these two capacitors
20
together.
Accordingly, as users would like to connect three capacitors in parallel, the condition changes and differs from that practiced as in FIG.
1
. The link bar
10
a
shown in
FIG. 2
is then needed. This link bar
10
a
has three bolt hole
11
thereon and is locked to three capacitors in order to get these capacitors connected in parallel. Of course, users can connect other number, such as four or more, of capacitors together and, therefore, must select a specific link bar with the same number of holes to meet the need. As a result, the maker must create numeral specifications of link bars and manufacture the link bar with various numbers of holes to meet the need. Consequently, the cost raises for manufacturing these kinds of link bars.
Referring to
FIG. 3
, when assembling link bars to capacitors, it is necessary to add a terminal
13
to connect the electrical wire thereon by way of locking the terminal
13
together with the bolt hole of the end side of link bar
10
on the same pole of the capacitor
20
.
In the conventional method of assembling, the terminal
13
is locked together with link bar
10
to the same pole by means of leading a bolt
12
screwing into the terminal
13
the bolt hole
11
of link bar
10
. However, as the side wall
16
of link bar
10
is arc-shaped and can not contact tightly together with the end face
14
of the terminal
13
face to face, the side wall
16
and the end face
14
contact with each other in the situation of point to surface instead, that is, the end face
14
is not in fully contact with the side wall
16
, and there exists a clearance between them. This may result in a serious trouble that the terminal
13
will turn around the bolt hole
11
for lacking a stop force against it during locking procedure, This situation may be dangerous and cause a short circuit of the released positive and negative poles of the capacitor.
SUMMARY OF THE INVENTION
Accordingly, the present invention provides mainly a link bar for capacitors of car audio system which is capable of assembling with each other and overlaps one another on both ends of link bar to construct a series of link bars, which, then, benefits users to compose link bars in different desired numbers of locking holes and obtain the flexibility of assembling and cost reduction by manufacturing only one single type of link bar.
In order to meet the object of the present invention, a link bar of the present invention comprises a conducting portion and a connecting portion for connecting electricity poles of said capacitors together. The connecting portion which stretches outward from both ends of the conducting portion can be connected with each other by overlapping the same, and has the same height as the conducting portion after overlapping the connecting portion for the users to utilize the desired number.
Another object of the present invention is to reduce the wobbling condition of the terminal during locking process.
To obtain the result the present invention has, at least, a flat surface that can tightly contact with the surface of the terminal in order to provide a supporting force to prevent the terminal from rotating during locking process.
REFERENCES:
patent: D. 94298 (1935-01-01), Frank
patent: 3663923 (1972-05-01), Primoff et al.
patent: 3728656 (1973-04-01), Neuber
patent: 3816171 (1974-06-01), Toth et al.
patent: 4345806 (1982-08-01), McHenney
patent: 5030797 (1991-07-01), Logstrup
H. B. Sherman Mfg. Co. advertisement is Electrical Record, p. 224, Apr. 1925.
Birch & Stewart Kolasch & Birch, LLP
Patel T. C.
Real Power Cap Company
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