CN1237669C - Electric shunt - Google Patents

Abstract

The invention discloses a electric shunt with a shell, at least two connection devices and a plurality of connection elements, wherein each connection device has several connection elements insulated electrically from each other, and the connection elements of different connection devices are interlinked by means of a corresponding connection element. The connection devices each have a cylindrical threaded neck on the connection side and the connection elements form insulation displacement connections on the connection side. The electric shunt can be connected reliably with the cable with corresponding connection device.

Description

Electrical shunts and functional devices

technical field

The invention relates to an electric shunt, with a casing, at least two wiring devices and several connecting units, wherein each wiring device is provided with several wiring units, the connecting units are electrically insulated from each other, and the wiring of different wiring devices The units are connected to each other through a corresponding connection unit.

Background technique

This type of electrical splitter is widely known in practical applications, and is mainly used to realize the branching of electric current, that is, to realize the connection between one multi-core cable on the incoming path and at least two multi-core cables on the outgoing path. This type of multi-core cable generally has a connecting device, which is matched with the wiring device of the electrical shunt, that is, the connecting device can be screwed onto the wiring device of the electrical shunt. The individual wires of the multi-core cable are electrically connected to the wiring unit provided in the wiring device.

In order for the electrical splitter to realize the aforementioned functions, that is, to branch one multi-core cable on the incoming path to at least two multi-core cables on the outgoing path, at least three wiring devices are required. However, the invention also relates to electrical shunts with only two connection devices. In this type of splitter, the above-mentioned branching function is no longer realized, but generally only the wiring between the single wires of the multi-core cable is realized, especially when the wires intersect.

What is important in the electrical splitter described above is that the cable can be easily connected to the connection device of the electrical splitter by means of the connection device mentioned. Even when subjected to mechanical loads such as shocks or vibrations, the connection must be stable and reliable over the long term.

Contents of the invention

The object of the present invention is to provide an electrical shunt with which a simple and reliable connection between the electrical shunt and the cables to be connected can be achieved.

The electrical shunt according to the present invention can achieve the above tasks, and the feature is that the connection side of each connection device has a cylindrical threaded head, and the connection side of the connection unit is set as a quick connection terminal for cutting the insulation layer.

The "wiring side" of the wiring unit refers to the side of the wiring unit pointing to the cable to be connected. However, the side of the terminal unit opposite to the “connection side”, ie the side directed towards the connection unit, is hereinafter referred to as the “connection side”.

According to the present invention, the connection side of the connection device has a cylindrical threaded head, so that the cable connection device has a thread matched with the threaded head, and can be simply screwed onto the connection device. This ensures that the connecting device is securely fixed on the wiring device. In the screwed-on state, this fixed connection can withstand strong mechanical loads, such as shocks or vibrations.

On the other hand, according to the present invention, the connection side of the connection unit is set as a fast connection terminal for cutting the insulation layer, so that a simple connection between a single wire of the cable and the connection unit becomes possible. The connection between a single wire and a terminal unit can be realized by simply pushing the wire into the insulation cutting quick-connect terminal block. In addition to the single wire of the wiring unit and the cable, no other connection and wiring components, such as socket plugs, etc. are required. For the specific structure and working method of cutting off the insulation layer quick terminal, refer to German publications 24 59069, 2621507, 2725 551, 28 56549, 19749662, German patent documents 2902 536, 32 39708 and German utility model documents 298 02 412.

According to the first preferred embodiment of the present invention, each connection unit is composed of a wire, and the connection between the connection unit corresponding to each wire and the wire is a detachable connection. Owing to having this connecting electrical splitter, the application becomes very extensive, because the wiring device can be connected together through the wiring unit and the connecting unit according to specific actual needs. In principle, simple bare conductors such as copper wire sections can also be used as conductors. But according to the first preferred embodiment of the present invention, the wires are insulated from each other.

In order to realize the detachable connection between terminal unit and conductor, in principle all known detachable connection methods can be used. But according to the first preferred embodiment of the present invention, the connection side of the wiring unit is also set as a quick connection terminal for cutting the insulation layer, and the detachable connection between the wiring unit and the wire is realized by using the quick connection terminal for cutting the insulation layer. In this way, a simple and reliable connection is also realized on the connection side, that is, the side facing the connection unit seen from the connection unit. The connection between the two wires is the same.

According to another preferred embodiment of the present invention, each connecting unit is configured as a bus bar, and the wiring unit corresponding to each bus bar is formed integrally with the bus bar. In this preferred embodiment, the busbars can be simply replaced according to specific wiring needs, that is, busbars with corresponding wiring units can be used as required.

In the electrical shunt according to the present invention, the wiring device is preferably detachably fixed between the locking structure and the casing.

In the electrical shunt according to the present invention, the wiring device is integrally formed with the casing.

In the electrical splitter of the present invention, the base has a guide groove, and the connecting unit is guided by the guide groove of the base.

In the electrical shunt according to the present invention, the base preferably utilizes a locking structure to achieve releasable locking with the casing.

In the electrical shunt according to the present invention, at least one wiring device can be screwed with a functional device.

In the electrical shunt according to the present invention, the functional device has at least a functional unit, such as a fuse, a sensor, a switch or/and a display device, etc.

The electrical shunt according to the present invention, wherein the functional device is used to be screwed on the threaded head of the wiring device of the electrical shunt.

In the electrical shunt according to the present invention, the functional device has at least one functional unit, such as a fuse, a sensor, a switch or/and a display device.

Description of drawings

Figure 1a shows three interconnected wiring arrangements of an electrical shunt according to a first preferred embodiment of the present invention;

Figure 1b shows three interconnected wiring devices of the above-mentioned electrical shunt according to a first preferred embodiment of the present invention;

Fig. 2 shows a wiring device of the above-mentioned electrical shunt according to the first preferred embodiment of the present invention;

Fig. 3 shows a base of the above-mentioned electrical shunt according to the first preferred embodiment of the present invention;

Figure 4 shows an electrical shunt according to a second preferred embodiment of the present invention;

Figure 5a shows an electrical shunt and bus bars inserted therein according to a third preferred embodiment of the present invention;

Fig. 5b shows the above-mentioned electrical shunt and bus bars separated therefrom according to a third preferred embodiment of the present invention;

Fig. 6 shows the above-mentioned electrical shunt according to the third preferred embodiment of the present invention;

Fig. 7 shows the above-mentioned electrical shunt with a connecting device and a functional device according to a third preferred embodiment of the present invention;

Figure 8 shows an electrical shunt according to a fourth preferred embodiment of the present invention;

Fig. 9 shows the above-mentioned electrical shunt according to the fourth preferred embodiment of the present invention;

Fig. 10 shows an electrical shunt according to a fifth preferred embodiment of the present invention.

Detailed ways

Considering the different installation methods of the wiring device on the housing, the present invention also has the following two preferred embodiments:

One of the preferred embodiments: the fixing method of the wiring device on the shell is detachable. This fixing method is preferably realized by using a locking structure, so that a single wiring device or a wiring device group can be locked and fixed on the housing by using this locking structure. A simple tool, such as a screwdriver, can be used to loosen the locking structure, thereby realizing the exchangeability of the wiring device very conveniently.

The second preferred embodiment: the wiring device and the housing are integrally formed. The integral structure of the wiring device and the housing can be realized in the following way: the wiring device is prepared as a single piece, and the required product is formed by spraying. The electrical shunt achieved in this way is particularly mechanically robust.

In principle, the arrangement of the connecting units for connecting the different terminal arrangements can also be guided freely and unrestrictedly. It is only necessary to ensure that the connection units are electrically insulated from each other, and each connection unit is equipped with an insulating layer as described above to achieve this requirement. However, according to the embodiments described below, it is possible to provide a base with a guide groove, the connecting unit being guided by the guide groove of the base. Here, the connection locking between the base and the shell is preferably releasable. It is particularly advantageous to realize the connection between the base and the housing by means of a locking structure. Utilizing such a base with a guide groove and clamped with the shell, the connection unit connecting the wiring unit can be easily fixed.

According to another preferred embodiment of particular importance, a functional device can be screwed onto at least one connection device. Utilize the connecting device to connect the cables on the incoming and outgoing paths to the electrical splitter according to the invention, while the functional devices are generally not connected with cables. Functional devices are mostly used to provide different functions, such as providing control, monitoring and/or display functions for the current flowing through the connection unit, the applied voltage or in a broad sense for the applied various signals.

According to a preferred embodiment of the present invention, the functional device has at least one functional unit, such as a fuse, a sensor, a switch or/and a display device. According to the different functions of the functional units set in the functional device, there is a corresponding connection between the wiring unit and the connecting unit. In certain cases, this connection does not correspond to the connection used between the terminal unit and the connection unit in the wiring device for connecting the cables (incoming and outgoing).

The invention also relates to a functional device which can be screwed onto the electrical shunt according to the invention.

In particular, the construction and implementation of electrical shunts and functional devices according to the invention can take many forms. Please refer to the following preferred embodiments with accompanying drawings below. in:

Figure 1a shows in side view an electrical shunt according to a first preferred embodiment of the invention. The electrical shunt has a housing 1 in which three connection devices 2 are arranged. The individual connection devices 2 are connected to one another via connecting elements 3, as is clearly shown in FIG. 1b. The connection unit 3 is usually formed from an insulated wire. In addition, it can be seen from FIG. 1 b that several wiring units (Anschlusselment) 4 are arranged in each wiring device 2 . It can likewise be seen from FIG. 1 b that the connection side of the connection unit 4 is designed as a fast connection terminal for cutting the insulation layer.

It can be seen from FIG. 2 that the connection side of the wiring unit 4 is also set as a quick connection terminal for cutting the insulation layer, so that the wiring device 2 is connected to a connection unit 3 through the quick connection terminal for cutting the insulation layer. The terminal units 4 of the terminal devices 2 are thus each connected to one another via an associated connecting unit 3 , while the terminal side of the individual terminal devices 2 has a cylindrical threaded head 5 .

As shown in FIG. 1a, the threaded head 5 only schematically shows the connecting unit (Verbindungselement) 6 to be screwed, but does not show that the multi-core cable 7 is connected therein.

The wiring unit 4 formed by cutting off the insulating layer quick-connecting terminal can simply and reliably realize the electrical contact of each core wire of the cable 7. At the same time, each wiring device 2 can also ensure reliability even under strong mechanical external forces such as collisions and vibrations. electrical connection. The connection unit 6 thus formed can be designed in particular as a cable connection as described in German laid-open publication 19836622.

According to a first preferred embodiment of the present invention, as seen in FIG. 3 , the connecting unit 3 formed of insulated wires is introduced into a channel 9 formed on the base 8 . Both the wiring device 2 and the base 8 can be fixed by means of a Schnappen mechanism (Schnappen mechanism), that is, the wiring device 2 and the base 8 have a bayonet 10 or 11, which can be snapped into an unillustrated slot on the housing. This allows simple assembly and disassembly of the electrical shunt according to the invention.

The electrical shunt with three wiring devices can not only be as the pattern 1-3, but also can be realized in the preferred embodiment of the present invention as shown in Fig. 4, in the figure, the major axis of the three wiring devices is 120 degrees and constitutes, with guide groove 9 The function of the base 8 is replaced by a centered guide plate 12, and the corresponding connecting units 3 are connected to each other. The wiring side of the wiring unit 4 is set as a fast wiring terminal for cutting off the insulating layer. In this way, the connection in different directions of the electrical shunt of the present invention can be realized.

Fig. 5 a, 5b are the 3rd preferred embodiment of the present invention, among the figure, connection unit 3 is formed by a bus bar (Sammelschiene), and the connection unit 4 that configures with it is integrally formed, and the connection side of connection unit 4 is arranged to cut off the insulating layer quickly Terminals. In this way, the connection with the wiring device 2 can be realized conveniently.

According to the third preferred embodiment of the present invention, not only the connecting unit 6 but also a functional unit 13 can be connected to the wiring device 2 . It can be seen from the arrangement in Fig. 6 that the wiring device 2 in the middle can be screwed to a functional unit 13, which is between the two wiring devices 2, one of the latter two wiring devices 2 is connected to the incoming line, and the other is connected to the outgoing line. At this time, as shown in FIG. 7 , the functional unit 13 may be a fuse 14 , or other functional units such as sensors, switches or/and display devices.

Fig. 8 is the fourth preferred embodiment of the present invention, the top wiring device 2 can be used for power feeding, the bottom wiring device 2 can be connected to a functional unit 13 as a fuse as a shunt, and the bottom wiring device 2 can be connected to another electrical appliances.

According to the above-mentioned fourth preferred embodiment, the configuration of a wiring device shown in Fig. 9 is obtained, according to the fifth preferred embodiment of the present invention, this configuration can also be changed, as one of them - the wiring device 2 can be as long as it is The axes are formed at right angles so that changes in the direction of cable entry and exit can be constructed.

Claims (11)

1, electric shunt, be with a shell (1), at least two terminations (2) and several linkage units (3), wherein be provided with several wiring units (4) in each termination (2), electric insulation each other between linkage unit (3), and the wiring units (4) of different terminations (2) respectively is connected to each other by a corresponding with it linkage unit (3), it is characterized in that: the connection side of termination (2) has columniform thread head (5), and wiring units (4) connection side constitutes for cutting off the insulating barrier quick-connect terminal.

2, electric shunt as claimed in claim 1 is characterized in that: each linkage unit (3) thoroughly does away with the edge lead by one and constitutes, with the corresponding wiring units of each lead (4) but with lead between be connected to being connected of loose-style.

3, electric shunt as claimed in claim 2 is characterized in that: the connection side of wiring units (4) constitutes for cutting off the insulating barrier quick-connect terminal, wiring units (4) but with lead between realize being connected of loose-style by cutting off the insulating barrier quick-connect terminal.

4, electric shunt as claimed in claim 1 is characterized in that: each linkage unit (3) is made of bus-bar, constitutes with corresponding wiring units of each bus-bar (4) and bus-bar one.

5, as the described electric shunt of arbitrary claim in the claim 1 to 4, it is characterized in that: termination (2) utilizes fixing that realization can be thrown off between locking strutcture and shell (1).

6, as the described electric shunt of arbitrary claim in the claim 1 to 4, it is characterized in that: termination (2) constitutes with shell (1) one.

7, as the described electric shunt of arbitrary claim in the claim 1 to 4, it is characterized in that: base (8) band guide groove (9), linkage unit (3) is subjected to the guiding of base (8) guide groove (9).

8, electric shunt as claimed in claim 7 is characterized in that: base (8) utilizes the locking that realization can be thrown off between locking strutcture and shell (1).

9, as the described electric shunt of arbitrary claim in the claim 1 to 4, it is characterized in that: can screw on a functional device (13) at least one termination (2).

10, electric shunt as claimed in claim 9 is characterized in that: functional device (13) is with a functional unit at least, as fuse (14), transducer, switch or/and display unit etc.

11, functional device is used to be spun on the thread head (5) of electric shunt termination as claimed in claim 1 (2), and wherein this device has a functional unit at least, and described functional unit is that fuse (14), transducer, switch are or/and display unit.

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