JPS5913156B2 - Energizing connection device - Google Patents

Description

[Detailed Description of the Invention] <Technical Classification/Field> The disclosed technology tightly clamps an input side terminal and an output side terminal as energizing elements through piston pressing against a pressurizing body to lower contact resistance and increase energization density. ■, 0 <Explanation of the summary> Therefore, this invention provides a method for connecting the input side cable terminal and the output side cable terminal by tightly attaching the contact terminal with a cylinder to ensure good conduction of electricity. The present invention relates to a current-carrying connection device, in particular a cylinder in which the input/output side terminals have a male/female fitting system, and a pressure body pressed by a piston is housed in at least one of the input/output terminals. This invention relates to a current-carrying connection device in which both terminals are brought into close contact with each other by a tightening screw that is attached and linked to one of the above-mentioned terminals to reliably increase surface pressure and to improve electrical contact between both terminals. .

<Prior Art> 10 As is well known, the input and output terminals of connection terminals of various electric devices, cables of power equipment, power transmission wires, etc. are always connected to each other by a connection device or mechanism.

Conventional connection methods include a simple pin insertion connection, a 15 or screw clamp method, and a coupler method of these connections, but all of them are mechanical connections from a macroscopic perspective. However, microscopically, the contact state is always uneven, and there is a drawback that it is not in a tight contact state and is unstable.20 Therefore, the contact resistance is not constant and the current density changes. However, low-power equipment has the disadvantage that the transmitted signal current changes and noise is easily generated, and high-power equipment has the disadvantage of causing damage due to heat generation or a decrease in output. Ta.

25 Also, since it is just a clamp during connection, the tightening force is not constant, and therefore, loosening occurs during connection, causing looseness and causing the above-mentioned problems as well as damage and damage.
Another disadvantage was that durability deteriorated due to wear.

30 <Object of the Invention> The object of the invention is to solve the problems of the current-carrying connection device based on the above-mentioned prior art, and to provide a pressurizing body such as hydraulic pressure or elastic pressure to the input/output terminal connection part. The 35 cylinder is sealed in a cylinder and pressed by a clamper during connection, so that both terminals are always in a tight state, reducing resistance, increasing current density, and improving durability, making it possible to use electricity in various industries. The purpose of this invention is to provide an excellent current-carrying connection device that will benefit the field.

In order to solve the above-mentioned problems, one of the input/output terminals is inserted into the insertion part of the other, and the structure of the present invention, which is based on the above-mentioned claims and is in line with the above-mentioned object, is to solve the above-mentioned problem. The screw connected to one of the pistons is rotated to push the piston forward, and the piston also presses the pressurizing body in the cylindrical cylinder combined with the piston, and the applied pressing force causes one or both of the terminals to be pushed forward. Technical measures have been taken to bring the current-carrying contact parts into a tight state, lowering the current-carrying resistance of the current-carrying contact parts, making the current-carrying state comfortable, and preventing the bonding force from loosening.

Embodiment 1 Configuration> Next, an embodiment of the present invention will be described below based on the drawings.

The embodiment shown in FIG. 1 is an embodiment of a cable connector that is connected to light electrical equipment as appropriate, and a current-carrying connection device 1 connects an input side cable 2 and an output side cable 3.
The input side casing 4 and the output side casing 5 of the current-carrying connection device 1 are connected to the input side cable 2 and the output side cable 3, respectively.
An input side cap 8 and an output side cap 9 having a long body part 8' having insertion holes 6 and 7 are removably screwed together.
Both casings 4 and 5 can be brought close to and separated from each other by adjusting the threading of a tightening screw 12 that overhangs the flange 10 of the input casing 4 and is externally mounted via the threaded portion 11 of the output casing 5.

A predetermined number of cylindrical input terminals 14 are inserted through the bracket 13 which is fixedly fixed to the inner end of the input casing 4 and are made of a highly conductive metal.
14, 14, . . . are fixedly installed, and the lead wires of the input side cable 2 are connected to the rear ends of each of them.

On the other hand, pressurizing pistons 16, 16, 16, .
- extend rearward in the same number as the input side terminals 14, 14, 14, each tip of which is inserted into a cylinder 18 sealed with pressure oil 17, and the rear end of each cylinder 18 is a male plug type. The output terminal 19 of the cylinder extension is inserted into the corresponding input terminal 14 through a predetermined friction, and a lead wire is connected to the base that passes through the bracket 15 and connects to the output cable 3. There is.

<Embodiment 1 Effect> In the above-described configuration, when connecting the input side cable 2 and the output side cable 3, each output side terminal 19 corresponding to each input side terminal 14 of the input side casing 4 is connected to its cylinder 18, The pistons 16 and 16 are brought close to each other, inserted and fitted together, and locked and connected through friction between the two.

In addition, in the normal connected state and the pulled-out state, the piston 16 does not relatively separate from the cylinder 18 due to the sealed pressure oil 17.

Therefore, when the tightening screw 12 is rotated to bring the input and output side casings 4 and 5 closer to each other through the screw 11, the piston 16 is further pushed into the cylinder 18 through the brackets 13 and 15, and therefore each output side terminal 19 to apply a pressing force to each corresponding input terminal 14, and therefore each input/output terminal 14, 19 is tightly connected, the contact area increases significantly, the potential resistance decreases, and the When energized in this state, the energization density increases and becomes stable, the energization resistance becomes good, and the power transmission signal is not disturbed.

Further, for separation and dissociation, the above-mentioned reverse operation may be performed.

Next, the embodiment shown in FIG. 2 is an embodiment of a bus bar type high power power transmission connection device V, in which input power from the input coupler plate l is conducted from the input side terminal 14' to the bar cable of the output side terminal 19'. The connection between the two is made by a conductive metal interposed between the two terminals 14' and 19', for example.
This is achieved by surface contact of a cylindrical cylinder 18' as a close contact of a copper alloy. When making the connection, for example, a so-called mineral oil-based oil, high viscosity fluid, For example, a pressurizing body 17' such as glycerin or a semi-solid plastic material such as silicone rubber or silicone putty is sealed, and then the flange 1
A cylindrical piston 16' integrally implanted in the cylindrical cylinder 18' is inserted into the front part of the cylindrical cavity of the cylindrical cylinder 18' in such a manner as to prepress the pressurizing body 17' pre-filled in the cylindrical cylinder 18'. Tighten the screws 12', 12' in the 1V screw hole of the terminal 14'...
・Tighten evenly through the screws.

Therefore, the output terminal 1 is placed inside the cylindrical cylinder 18'.
9' is loosely inserted, and then the temporarily tightened flange 15' is fully tightened with the screws 12', 12', . . . , and the pressurizing body 17' is pressurized.

Therefore, the pressurizing body 17' to which the pressurizing force is applied presses the cylindrical cylinder 18' laterally, and gradually the input/output side terminal 1
4' and 19', and the cylindrical cylinder 18' and both terminals 14',
The contact area of 19' is expanded as much as possible, current carrying resistance is reduced, and the structure is more stable.

If power is transmitted in this state, the current will be transmitted satisfactorily without any power drop at both terminals.

In this embodiment, if a semi-solid elastic body such as silicone rubber, or a flexible or plastic body is used as the pressurizing body, there is no risk of pressure fluid leakage during the pressurizing process.

In addition, in the embodiment shown in FIG. 3, the input side terminal 14 and the output side terminal 19 are formed in a U-shape, and a pressure body 17 made of butyl rubber is placed inside the cylinder 18 which is interposed and engaged with each other in an inverted position.
This is a mode in which an expanding force is applied in the direction of the arrow when energizing is connected, and it is possible to expand the energized area and lower the energizing resistance as described above, and it is also possible to increase the energizing density and make the energizing state more favorable. .

The embodiment shown in FIG. 4 is a design modification example of the embodiment shown in FIG. ' is interposed and the pressurizing body 171' is made of synthetic rubber mixed with graphite powder, and has substantially the same effect.

It goes without saying that the embodiments of the present invention are not limited to the above-mentioned embodiments. For example, the pressurizing body may be a highly viscous fluid such as grease, vaseline, paraffin, or wax, a wood alloy, indium, gallium, Low-temperature alloys such as Sn and Pb alloys, synthetic resins such as polyurethane, polyethylene, vinyl chloride, chloroprene rubber, or further,
Various embodiments can be adopted, such as the use of the aforementioned fluid mixed with metal, alloy powder, metal oxide powder, graphite powder, or solid lubricant powder such as BN, CFn, MOS2, WS2, etc. .

Effects of the Invention As described above, according to the present invention, in the current-carrying connection device that connects the input side terminal and the output side terminal and supplies electricity, the input and output side terminals are made into a mating type insertion type or an inserted type, and at least A cylinder containing a pressurizing body is attached to one of the terminals, and the cylinder is further equipped with a pressurizing piston having a tightening screw connected to either one of the terminals, so that basically both terminals can be connected to each other. Then, the tightening screw is tightened, and the current-carrying contact surface is increased as much as possible by tightening both terminals through the pressurizing body of the cylinder, and therefore, the current-carrying resistance is reduced, and as a result, the current-carrying When the current density increases, the current-carrying contact becomes qualitatively stable, and therefore the signal current is transmitted well as designed, resulting in constant power transmission,
Transmission is performed without noise signals, and excellent effects such as accurate information delivery and energy transmission are achieved.

Further, according to the current-carrying connection device according to the present invention, by adding a pressurizing body clamp in addition to the mechanical pin contact and the screw clamp, the connected state can be maintained, and the above-mentioned transmission state can be maintained.

By designing the pressurizing body to be an elastic body, there is no need for a liquid-tight seal, etc., and as a result, the structure becomes simple and maintenance is unnecessary. Excellent effects are achieved without oxidation.

[Brief explanation of the drawing]

The drawings are explanatory diagrams of embodiments of the present invention; FIG. 1 is a schematic partial sectional view of one embodiment, FIG. 2 is a partial sectional view of another embodiment, and FIGS. 3 and 4 are other embodiments. FIG. 14, 14', 14〃, 14i... Input side terminal, 19, 19', 19〃, 191... Output side terminal, 18, 18', 18〃, 181'... ...Cylinder, 1, V... Current connection device, 19, 19'
,19〃,19''...Insert terminal, 14,14'
, 14〃, 145... terminal to be inserted, 17, 17
', 17〃, 17I... Pressure body, 12, 121
...Tightening screw, 16,16' ...Pressure piston.

Claims (1)

[Claims] 1. In a current-carrying connection device that is provided between an input side terminal and an output side terminal and has a cylinder in the current-carrying contact portion of both terminals,
Both of the above terminals are combined as an insertion terminal and an inserted terminal,
At least one of the two terminals is provided with the cylinder containing a pressure body therein, and the cylinder is provided with a pressure piston having a tightening screw connected to either one of the terminals. 1. A current-carrying connection device characterized in that the pressure piston is pushed forward with a screw and the pressure body is pressed, thereby bringing both terminals tightly together and making good electrical contact.