CN102176551A - Connecting terminal, power device and manufacturing method and connecting method of connecting terminal - Google Patents

Abstract

The invention discloses a connection terminal, a power device, a manufacturing method and a connection method of the connection terminal, and relates to the field of electronic technology. It solves the technical problem in the prior art that the operation of connecting cables through the copper terminals is laborious. The connection terminal includes a first conductive part and a second conductive part, the first conductive part and the second conductive part are detachably or non-detachably connected, or form an integrated structure, the first conductive part is provided with a mounting hole or a mounting hole In the groove, the second conductive part has a first end and a second end, and has a through hole or a notch, and the second conductive part is curved in a curve or a zigzag line relative to the first direction, and the bending angle is greater than 0° and less than 180°. The electric device includes the connection terminal provided by the invention. The manufacturing method of the connecting terminal is used for manufacturing the connecting terminal provided by the present invention. In the connection method of the connection terminal, the connection terminal provided by the present invention is used to connect wires. The invention applies to circuit connections.

Description

Connection terminal, electric device, method for manufacturing connection terminal, and connection method

technical field

The invention relates to the field of electronic technology, in particular to a connection terminal, a power device provided with the connection terminal, a manufacturing method of the connection terminal, and a connection method of the connection terminal.

Background technique

At present, in the fields of power transmission and signal transmission, it is necessary to use terminal blocks to connect wires and power equipment. The existing terminals are made of copper material, so they are called copper terminals.

As shown in Figures 1 and 2, the existing copper terminal includes two parts of an integrated structure, namely the first conductive part 1 and the second conductive part 2, wherein:

The first conductive part 1 of the copper terminal is in the shape of a tube, and an installation hole 11 is arranged on it;

As shown in Figure 2, after the cable 41 is embedded in the installation hole 11 along the axial direction of the installation hole 11 on the first conductive part 1 of the copper terminal, the first conductive part 1 is squeezed, so that the cable 41 can be connected to the first conductive part. Part 1 is fixedly connected and electrically connected;

The second conductive part 2 of the copper terminal is in the shape of a flat sheet, and a through hole 21 is opened on the second conductive part 2 , and the maximum extension direction of the second conductive part 2 is on a straight line with the axial direction of the installation hole 11 .

The conductive bar of the conductive element connected to the copper terminal on the power equipment is usually a flat copper bar 31 shown in FIG. 2 for conducting electricity, and the copper bar 31 has a connection hole. When specifically connecting, use bolts to pass through the through hole 11 of the copper terminal and the connection hole of the copper bar 31 to make the two closely contact and form an electrical connection. The copper bar 31 and the copper terminal connected together can transmit electric energy.

In the enterprise power supply and distribution system, due to the rapid development of the enterprise, there are more and more electrical equipment in the enterprise, which leads to an increasing demand for electricity in the enterprise, and the power supply and distribution equipment is increasingly unable to meet the electricity demand of the enterprise. Although the efficiency of power supply and distribution equipment is also improving, the improvement of power supply and distribution equipment performance lags behind the increase in power demand of enterprises. Many enterprises have the above problems, so it is often necessary to temporarily deploy power and lay some cables temporarily. In order to meet the needs of enterprises for power consumption, most of the cables used in enterprises are cables capable of transmitting higher voltage or current (such as cables with a cross-sectional area of 120 mm ² or more), and such cables are usually not easy to bend.

As shown in Figure 2, since the copper bar 31 used to connect the cables 41 on the power equipment is limited, and there is usually only one connection hole on the copper bar 31, it is often necessary to connect multiple cables 41 to one copper bar 31 . During specific connection, bolts 61 need to be inserted through the connection holes of copper bars 31 first, and then the through holes 21 of the second conductive part 2 in the form of flat sheets connected with a plurality of copper terminals connected with cables 41 are socketed in On the bolt 61, after the through holes 21 of the second conductive part 2 in the shape of a plurality of copper terminals are sleeved on the bolt 61, the through holes 21 of the second conductive part 2 in the shape of a plurality of copper terminals in the shape of a flat sheet will be Overlap together, in order to ensure a reliable electrical connection is formed between a plurality of flat second conductive parts 2 and between the second conductive part 2 and the copper row 31, between the second conductive part 2 and the copper row 31 and between the plurality of flat The second conductive parts 2 must be in a state of close contact, and when a plurality of flat sheet-shaped second conductive parts 2 are in a state of close contact, the first conductive part 1 of the copper terminal is in the form of a tube and rotates around the bolt 61 Sometimes it will be hindered by the tubular first conductive parts 1 of other adjacent copper terminals, so that the tubular first conductive parts 1 cannot be stacked together, so the tubular first conductive parts 1 of each copper terminal The conductive part 1 spreads out in multiple directions. At this time, tighten the bolt 61 to ensure close contact between the second conductive part 2 and the copper row 31 and between the adjacent second conductive parts 2, so that the copper row 31 can be connected to a plurality of cables 41 through a plurality of copper terminals. electrical connection between.

Since the first conductive part 1 of the tubular copper terminal disperses to multiple directions, the cables 41 connected to the copper terminal also disperse to multiple directions, while the cable outlets on the casing of the electric equipment in the prior art usually It is installed in one direction on the casing of the power equipment. In order to make multiple cables 41 protrude from the cable outlet on the casing and keep the cables 41 in parallel, the following two installation methods are mainly used in the prior art:

The first installation method is: put the copper terminal connected with the cable 41 on the bolt 61 and tighten the bolt 61 to ensure the connection between the second conductive part 2 and the copper bar 31 and between the adjacent second conductive parts 2 After close contact, the cables 41 scattered in multiple directions are all bent toward the cable outlet direction on the shell, so that the cables 41 are distributed side by side along the direction of the cable outlet. This installation method will connect the cables 41 connected to the copper terminals. Bend into an elbow shape as shown in Figure 2;

Another installation method is: after the cables 41 connected with the copper terminals are arranged side by side, extend from the outside of the cable outlet on the housing to the inside of the housing, and then connect the second conductive parts 2 of these copper terminals to the bolts 61 And then connected to the copper bar 31. Before the copper terminal connected with the cable 41 is sleeved on the bolt 61 and the bolt 61 is tightened, the cable 41 connected with the copper terminal is bent into an elbow shape as shown in FIG. The through holes 21 of the second conductive parts 2 of the copper terminals on the distributed cables 41 overlap with the connecting holes on the copper bars 31 , thereby realizing the electrical connection between the cables 41 and the copper bars 31 .

The inventor found in the process of realizing the present invention that the prior art has at least the following problems:

In the prior art, although the procedures of the first installation method and the second installation method are different, there is a common problem that the cable 41 shown in Figure 2 needs to be bent during the installation process, because the existing cables especially transmit Cables with large voltage or current are usually not easy to bend, so the operation of bending cables is usually laborious, which in turn leads to laborious operation of connecting cables through copper terminals in the prior art, and may even affect or destroy the electrical connection.

Contents of the invention

Embodiments of the present invention provide a connection terminal, a power device provided with the connection terminal, a manufacturing method of the connection terminal, and a connection method of the connection terminal, which solve the laborious operation of connecting cables through copper connection terminals in the prior art. technical problem.

In order to solve the above technical problems, the present invention provides a connection terminal,

The connection terminal includes a first conductive part and a second conductive part, wherein the first conductive part and the second conductive part are detachably or non-detachably connected, or form an integrated structure, wherein:

The first conductive part is provided with a mounting hole or a mounting groove, and a wire installed in the mounting hole or the mounting groove extends along a first direction of the first conductive part to connect to the first conductive part;

The second conductive part has a first end connected to the first conductive part and a second end opposite to the first end, and has a through hole or a notch, the second conductive part is opposite to the The first direction is bent in a curved line or a folded line, and the bending angle is greater than 0° and less than 180°.

The present invention provides a power device, including a conductive bar with a connection hole, at least one of the above-mentioned connecting terminals and fasteners provided by the embodiments of the present invention, wherein:

The fastener passes through the connection hole and the through hole or the notch so that the second conductive parts of the adjacent connecting terminals and the second conductive parts of the connecting terminals are connected to each other. Fasten the electrical connection between the part and the conductive row.

The invention provides a method for manufacturing a terminal, comprising the following steps:

Manufacturing the first conductive part and the first conductive part of an integral structure by one-shot molding by using a casting process or a stamping process; or,

The manufacturing method of the connection terminal includes the following steps: using a casting process or a stamping process to manufacture the first conductive part; using a casting process or a stamping process to manufacture the second conductive part; The conductive part is connected with the second conductive part by riveting or by a fastener provided with threads.

The invention provides a connection method of a terminal, comprising the following steps:

selecting the same number of terminals according to the number of connected wires;

installing each of the wires in the installation hole or the installation groove;

The wire installed in the installation hole or the installation groove is fixedly connected to the inner wall of the installation hole or the installation groove to be electrically connected, for example, by applying a pressing force from the outer surface of the first conductive part to make the The wire is fixedly connected to the inner wall of the installation hole or the installation groove for electrical connection;

Pass the fastener through the connection hole of the conductive row and the through hole or notch on the second conductive part of each terminal, and make the first direction of the first conductive part of each terminal parallel And consistent with the predetermined direction;

Tightening or clamping the fasteners, so that the electrical connection is fastened between the second conductive parts of the adjacent connecting terminals and between the second conductive parts of the connecting terminals and the conductive row.

Any one of the above-mentioned technical solutions provided by the embodiments of the present invention has at least the following advantages:

Since in the connection terminal provided by the embodiment of the present invention, the angle value of the bending angle is greater than 0° and less than 180°, when the through hole or the notch on the second conductive part is sleeved on the fastener (such as a bolt), There is a bending angle between the axial direction of the installation hole or the installation groove on the first conductive part, that is, the first direction, and the second conductive part provided with a through hole or a notch, and then embedded in the installation hole or installation groove and aligned with the first direction. The wires (such as cables) that are fixedly connected and electrically connected to the first conductive part also have a bending angle with the second conductive part when they are not bent. It can be seen that the wire and the first wire can be realized without bending the wire in the present invention. Electrical connection between conductive parts;

Compared with the prior art, when the connecting terminal provided by the embodiment of the present invention is used for electrical connection operation, the step of bending the wire can be saved, and the fewer connecting steps, the less effort is required for the connecting operation. Therefore, the connecting terminal provided by the present invention When connecting with wires, the connection operation will be more labor-saving, especially when the wires are thicker or hard-to-bend cables, the effect of labor-saving will be more prominent when using the connection terminal provided by the present invention, so it is solved In the prior art, the operation of connecting cables through copper terminals is relatively laborious and can reduce the possibility of electrical connection failure due to bending of cables.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

FIG. 1 is a three-dimensional schematic diagram of an existing terminal block;

Fig. 2 is a schematic diagram of two cables connected to copper bars through existing terminal blocks;

3 is a schematic perspective view of a terminal with a bending angle of 90° between the maximum extension direction of the second conductive portion and the axial direction of the mounting hole provided by an embodiment of the present invention;

4 is a schematic perspective view of a terminal with a bending angle of 135° between the direction of the maximum extension of the second conductive portion and the axial direction of the mounting hole provided by an embodiment of the present invention;

5 is a schematic diagram of the manufacturing process of the terminal in which the bending angle between the direction of the maximum extension of the second conductive portion and the axial direction of the mounting hole is 45° according to an embodiment of the present invention;

Fig. 6 is a schematic perspective view of a connection terminal provided with two second conductive parts provided by an embodiment of the present invention;

Fig. 7 is a schematic diagram of an existing connection terminal, a connection terminal provided by an embodiment of the present invention, and a connection method of a wire provided by a connection terminal provided by an embodiment of the present invention and a conductive bar;

Fig. 8 is a schematic diagram of connecting terminals provided by two embodiments of the present invention and wires connected to conductive bars using the connection method of connecting terminals provided by embodiments of the present invention;

Fig. 9 is a schematic diagram of connecting an existing connection terminal with two connection terminals provided by the embodiments of the present invention and conducting wires using the connection method provided by the connection terminals provided by the embodiments of the present invention;

Fig. 10 is a schematic diagram of connecting terminals provided by four embodiments of the present invention and wires connected to conductive bars using the connecting method provided by the embodiments of the present invention;

FIG. 11 is a flow chart of a method for manufacturing a terminal provided by an embodiment of the present invention;

Fig. 12 is a flow chart of the connection method of the connection terminal provided by the embodiment of the present invention.

Detailed ways

Embodiments of the present invention provide a connection terminal with relatively labor-saving and convenient electrical connection operation, an electric device provided with the connection terminal, a manufacturing method of the connection terminal, and a connection method of the connection terminal.

According to the present invention, there is provided a connection terminal, which is characterized in that it includes a first conductive part and a second conductive part, wherein the first conductive part and the second conductive part are detachably or non-detachably connected, or formed as One-piece structure, where:

The first conductive part is provided with a mounting hole or a mounting groove, and a wire installed in the mounting hole or the mounting groove extends along a first direction of the first conductive part to connect to the first conductive part;

The second conductive part has a first end connected to the first conductive part and a second end opposite to the first end, and has a through hole or a notch, the second conductive part is opposite to the The first direction is bent in a curved line or a folded line, and the bending angle is greater than 0° and less than 180°.

Preferably, in each embodiment of the present invention, the through hole or the notch is opened at the second end of the second conductive portion.

Preferably, in each embodiment of the present invention, the bending angle is 45°, 60°, 90°, 120° or 135°.

Preferably, in each embodiment of the present invention, the first conductive part and the second conductive part are detachably connected, so that the bending angle between the first conductive part and the second conductive part It can be adjusted, for example, the first conductive part is connected to the second conductive part through a threaded fastener.

Preferably, in each embodiment of the present invention, the connection terminal includes at least two of the second conductive parts, wherein: at least two of the second conductive parts have different or the same bending angles.

Preferably, in each embodiment of the present invention, the first conductive part and the second conductive part are made of copper, aluminum, copper alloy, or aluminum alloy.

The present invention also provides a power device, which is characterized in that it includes a conductive bar with connection holes, at least one terminal provided according to at least one embodiment of the present invention, and a fastener, wherein:

The fastener passes through the connection hole and the through hole or the notch so that the second conductive parts of the adjacent connecting terminals and the second conductive parts of the connecting terminals are connected to each other. Fasten the electrical connection between the part and the conductive row.

Preferably, in each embodiment of the present invention, the conductive row is a conductive copper row used to electrically connect a switch, and the wire is a cable.

The present invention also provides a method for manufacturing a connection terminal, which is characterized in that:

The manufacturing method of the connection terminal includes the following steps: using a casting process or a stamping process to manufacture the first conductive part and the first conductive part of an integral structure at one time; or,

The manufacturing method of the connection terminal includes the following steps: using a casting process or a stamping process to manufacture the first conductive part; using a casting process or a stamping process to manufacture the second conductive part; The conductive part is connected with the second conductive part by riveting or by a fastener provided with threads.

The present invention also provides a connection method for terminal blocks, which is characterized in that it includes the following steps:

selecting the same number of terminals according to the number of connected wires;

installing each of said wires into said mounting hole or said mounting slot;

The wire installed in the installation hole or the installation groove is fixedly connected to the inner wall of the installation hole or the installation groove to be electrically connected, for example, by applying a pressing force from the outer surface of the first conductive part to make the The wire is fixedly connected to the inner wall of the installation hole or the installation groove for electrical connection;

Pass the fastener through the connection hole of the conductive row and the through hole or notch on the second conductive part of each terminal, and make the first direction of the first conductive part of each terminal parallel And consistent with the predetermined direction;

Tightening or clamping the fasteners, so that the electrical connection is fastened between the second conductive parts of the adjacent connecting terminals and between the second conductive parts of the connecting terminals and the conductive row.

Preferably, in each embodiment of the present invention, the number of the wires is at least two, and the connection terminals include at least one connection terminal whose bending angle is an acute angle or a right angle and at least one connection terminal whose bending angle is an obtuse angle. Terminals.

Preferably, in each embodiment of the present invention, the number of said wires is at least three, wherein:

The two connecting terminals whose bending angle is an obtuse angle are respectively connected to two of the wires, and the at least one connecting terminal whose bending angle is an acute angle or a right angle is connected to and opposite to at least one of the remaining wires. In the direction of the lead-out opening, it is located on the outer side of the two connecting terminals whose bending angles are obtuse.

As shown in FIG. 3 , the terminal of the embodiment of the present invention includes a first conductive part 1 and a second conductive part 2, wherein the first conductive part 1 and the second conductive part 2 are detachably or non-detachably connected, or form a One-piece structure, wherein: the first conductive part 1 is provided with a mounting hole 11 or a mounting groove, and the wire 4 installed in the mounting hole 11 or the mounting groove extends along the first direction of the first conductive part 1 to connect to the first conductive part 1. part 1;

The second conductive part 2 has a first end connected to the first conductive part 1 and a second end opposite to the first end, and has a through hole 21 or a notch, and the second conductive part 2 is curved relative to the first direction. Or bent in a zigzag manner, and the bending angle α is greater than 0° and less than 180°.

Since in the connection terminal provided by the embodiment of the present invention, the angle value of the bending angle α is greater than 0° and less than 180°, the through hole 21 or the notch on the second conductive part 2 is sleeved on the fastener (such as a bolt) When it is up, between the first direction of the installation hole 11 or the installation groove on the first conductive part 1 (the first direction is the axial direction of the installation hole 11) and the second conductive part 2 with the through hole 21 or the notch. There is a bending angle, and then the wire 4 (such as a cable) embedded in the installation hole 11 or the installation groove and firmly connected with the first conductive part 1 and electrically connected to the second conductive part 2 is also connected to the second conductive part 2 without bending. There is a bending angle, so it can be seen that the electrical connection between the wire 4 and the first conductive part 1 can be realized without bending the wire 4 in the present invention;

Compared with the prior art, when the connecting terminal provided by the embodiment of the present invention is used for electrical connection operation, the step of bending the wire 4 can be saved, and the fewer connection steps, the more labor-saving the connection operation, so the connection provided by the present invention When the terminal is connected to the wire 4, the connection operation will be more labor-saving, especially when the wire 4 is a thicker or hard-to-bend cable, the effect of labor saving will be more prominent when the connection terminal provided by the present invention is used for the connection operation. Therefore, the technical problem of laborious operation of connecting cables through copper terminals in the prior art is solved.

The first end of the second conductive portion 2 is opposite to the second end. In this embodiment, the bending of the second conductive portion 2 relative to the first direction may be a smooth transition or a non-smooth transition (corresponding to curved or zigzag bending). No matter what kind of bending, as long as the second conductive part 2 can form a certain bending angle relative to the first direction, the technical effect of avoiding excessive bending of the wire 4 can be achieved.

Preferably, in each embodiment of the present invention, the first conductive part 1 and the second conductive part 2 can be detachably connected by screwing, of course, the first conductive part 1 and the second conductive part 2 can also be connected by Fastened by riveting or welding.

Preferably, in each embodiment of the present invention, the through hole 21 or the notch is opened at the second end of the second conductive portion 2 . At this time, the through hole 21 or the notch is far away from the first conductive part 1 in the direction perpendicular to the first direction (the first direction is the axial direction of the mounting hole 11), which can more effectively avoid multiple Bending of wires 4 of different diameter sizes.

Preferably, in each embodiment of the present invention, the first conductive part 1 and the second conductive part 2 are detachably connected, so that the bending angle α between the first conductive part 1 and the second conductive part 2 can be adjusted, For example, the first conductive part 1 and the second conductive part 2 are connected by screw fasteners.

At this time, the bending angle between the first conductive part 1 and the second conductive part 2 can be adjusted according to needs, so as to achieve the purpose of adjusting the bending angle α.

Preferably, in each embodiment of the present invention, the connection terminal includes at least two second conductive parts 2 , wherein: the at least two second conductive parts 2 have different or the same bending angle α. When the two second conductive parts 2 have different bending angles α with the same orientation, the connection terminal is approximately Y-shaped as shown in Figure 6; when the two second conductive parts 2 have the same bending angle α with the same orientation, the connection terminal The terminals are approximately F-shaped. Certainly, in other embodiments, the two second conductive parts 2 may also have the same or different bending angles facing oppositely. The terminal with two different bending angles α in the same direction has a wider application range and can be used for more wires 4 with different thicknesses. The approximate F shape of the connection terminal can be applied to wires 4 of different lengths.

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Example 1:

As shown in Figure 3 and Figure 4, the connection terminal provided by the embodiment of the present invention includes a first conductive part 1 and at least one second conductive part 2 connected to the first conductive part 1, wherein:

The first conductive part 1 is provided with a mounting hole 11 or a mounting groove, and the wire 4 embedded in the mounting hole 11 or the mounting groove is fixedly connected with the first conductive part 1 and electrically connected;

The second conductive part opening 2 is provided with at least one through hole 21 or notch 22, and there is a bending angle α between the maximum extension direction of the second conductive part 2 and the axial direction of the installation hole 11 or the installation groove, and the angle of the bending angle α is The value is greater than 0° and less than 180°.

As shown in FIG. 8 , in the connection terminal provided by the embodiment of the present invention, since the through hole 21 or the notch 22 is opened on each second conductive part 2 as shown in FIG. 3 , and the maximum extension of the second conductive part 2 There is an included angle α bending angle α between the direction and the axial direction of the installation hole 11 or the installation groove, and the angle value of the included angle α bending angle α is greater than 0° and less than 180°, so the through hole 21 on the second conductive part 2 Or when the notch 22 is sleeved on the fastener 6 (such as the bolt 61) as shown in FIG. There is an included angle α and a bending angle α between them, and then along the axial direction of the installation hole 11 or the installation groove, the wire 4 ( For example, the cable 41) also has an included angle α with the maximum extension direction of the second conductive part 2 when it is not bent. It can be seen that the connection between the lead 4 and the first conductive part 1 can be realized without bending the lead 4. Compared with the prior art, when using the connecting terminal provided by the embodiment of the present invention to perform the electrical connection operation, the step of bending the wire 4 can be saved, and the fewer the connection steps, the more labor-saving the connection operation. Therefore, the present invention When the provided connection terminal is connected to the wire 4, the connection operation will be more labor-saving, especially when the wire 4 is an inflexible cable 41, when the connection terminal provided by the present invention is used for the connection operation, the labor-saving effect will be more Prominent, so it solves the technical problem that the operation of connecting the cable 41 through the copper terminal is relatively laborious in the prior art.

In this embodiment, the second conductive portion 2 is strip-shaped, and the through hole 21 or the notch 22 is opened at the end edge of the second conductive portion 2 in the direction of maximum extension.

The larger the cross-sectional size of the wire 4 is, in order to ensure that the multiple wires 4 can be arranged parallel to each other, and when the multiple wires 4 are arranged parallel to each other, the adjacent wires 4 will not collide with each other and affect each other. The space of the wire 4 in its radial direction is more sufficient, and in order to make the space of the wire 4 more sufficient in its radial direction, the through hole 21 or the notch 22 of the connecting terminal is connected with the installation hole 11 or the first conductive part 1. The greater the distance between the axis lines of the mounting grooves, the better, but the greater the distance between the through holes 21 or notches 22 and the mounting holes 21 of the first conductive part 1 or the axis lines of the mounting grooves, the second conductive part The dimension in the direction of the maximum extension of 2 is also larger, and the larger the dimension, the more material is consumed. Therefore, when the thickness dimension of the second conductive part 2 of two different connection terminals and the dimension in the axial direction of the wire 4 are the same , if the amount of material consumed is the same, when the through hole 21 or the notch 22 is opened at the end edge of the second conductive part 2 in the direction of maximum extension, the installation of the through hole 21 or the notch 22 and the first conductive part 1 The distance between the axes of the holes 11 or mounting grooves is larger.

In this embodiment, the angle value of the bending angle α is 30°-150°. Also in order to make the distance between the through hole 21 or notch 22 of the connecting terminal and the installation hole 11 of the first conductive part 1 or the axis line of the installation groove larger, the closer the angle value of the bending angle α is to 90°, The distance between the through hole 21 or the notch 22 and the axis line of the installation hole 11 or the installation groove of the first conductive part 1 is also manufactured to be larger. Practice has proved that: when the angle value of the bending angle α is between 30° and 150°, the distance between the through hole 21 or the notch 22 and the installation hole 11 of the first conductive part 1 or the axis line of the installation groove is relatively small. Large enough to meet the requirement that most of the wires 4 in the prior art are arranged parallel to each other and adjacent wires 4 will not collide with each other or affect each other.

As shown in FIG. 3 , the value of the bending angle α in this embodiment is 45°, 90° or 135°, preferably 90°.

Practice has proved that: when the thickness dimension of the second conductive part 2 of two different connection terminals and the dimension of the axial direction of the wire 4 are the same, the angle value of the bending angle α is 45° as shown in Figure 5, as shown in Figure 3 90° as shown or 135° as shown in FIG. 4 , the distance between the through hole 21 or the notch 22 and the first conductive part 1 can be made relatively large under the condition that the amount of consumed material remains unchanged, thereby satisfying In the prior art, when most of the wires 4 are arranged parallel to each other, the adjacent wires 4 will not collide with each other and affect each other;

At the same time, since 45°, 90° or 135° are relatively regular angle values, it is convenient to design the angle of the mold for casting the connecting terminal or the angle of the knife for machining the connecting terminal, so it is not only convenient for production, but also convenient for selection and use during use. Identify the connection terminals. Certainly, in this embodiment, the bending angle α may also be other angle values other than 45°, 90° or 135° such as 60°, 120° and so on.

In this embodiment, the first conductive part 1 and the second conductive part 2 have an integrated structure as shown in Figure 3 or Figure 4, or, the first conductive part 1 and the second conductive part 2 are riveted as shown in Figure 5 Or the first conductive part 1 and the second conductive part 2 are fixedly connected by a fastener provided with threads, preferably riveted by a rivet 5 .

The integral structure of the first conductive part 1 and the second conductive part 2 not only has a relatively uniform connection strength between each part, but also a more reliable connection, and in practical applications, its conductive stability is relatively strong; and it is convenient to use casting, It is processed and manufactured by one-time forming process such as stamping, so it also has the advantages of saving production processes and facilitating mass production.

As shown in Figure 5, the advantage of the riveting between the first conductive part 1 and the second conductive part 2 or the fastening with threaded fasteners is that the bending angle α can be freely selected according to actual needs before use, Then, they are riveted with 5 phases of rivets or fixedly connected with each other through a threaded connection structure. The two connection methods of riveting and threading are both very stable, and can make the first conductive part 1 and the second conductive part 2 connected together to be in close contact, thereby achieving basically the same conductive effect as the one-piece structure.

In this embodiment, the threaded connection structure includes a first hole 10 opened on the first conductive part 1, a second hole 20 opened on the second conductive part 2, and bolts passed through the first hole 10 and the second hole 20. or screws. The screw connection structure has the advantages of flexible and convenient connection operation, simple and reliable.

The first conductive part 1 and the second conductive part 2 are made of copper, aluminum, copper alloy or aluminum alloy. All these materials have the advantages of good electrical conductivity, low cost, and easy production and processing. Of course, in this embodiment, the first conductive part 1 and the second conductive part 2 may also use other conductive materials other than copper, aluminum, copper alloy or aluminum alloy materials.

Example 2:

As shown in FIG. 6, this embodiment is basically the same as Embodiment 1, the difference is that the connection terminal in this embodiment includes at least two second conductive parts 2 connected to the first conductive part 1, wherein:

The bending angle α existing between the maximum extension direction of at least one of the second conductive parts 2 and the axial direction of the installation hole 11 or the installation groove on the first conductive part 1 and the maximum extension direction of the other second conductive part 2 The angle value of the bending angle α existing between the axial direction of the installation hole 11 or the installation groove on the first conductive part 1 is different.

If there are two or more second conductive parts 2 with different angles on a terminal, the terminal can be used in a variety of ways to choose from, making one terminal suitable for a variety of applications demand.

As shown in Fig. 7, Fig. 8, Fig. 9 or Fig. 10, the power device provided by this embodiment includes a conductive bar 3 provided with connection holes, at least one of the above-mentioned wiring provided by Embodiment 1 or Embodiment 2 of the present invention Terminals and fasteners 6, wherein:

The fastener 6 passes through the connection hole and the through hole 21 or the notch 22 to fasten the electrical connection between the second conductive part 2 of the adjacent terminal and between the second conductive part 2 and the conductive row 3 of the terminal. connect.

Since the power device provided by the embodiment of the present invention has the same technical features as the connecting terminal provided by the above-mentioned embodiment 1 or embodiment 2 of the present invention, it can also produce the same technical effect and solve the same technical problem.

The power device is a device used for power transmission. The conductive row 3 and the wire 4 connected to the conductive row 3 usually transmit a large current or voltage, so the wire 4 is usually thicker, and the thicker the wire 4 is, the thicker it is. It is not easy to bend, so it is suitable to use the connection terminals provided by the above embodiments of the present invention to electrically connect the wires 4 and the conductive bars 3 , so as to reduce the difficulty of the connection operation between the connection terminals and the wires 4 .

Of course, the connection terminals provided by the above-mentioned embodiment 1 and embodiment 2 of the present invention can also be applied to other electronic devices or circuit boards other than electric devices.

In this embodiment, as shown in FIG. 7 or FIG. 8 , the conductive bar 3 is a copper bar 31 for electrically connecting the switch, and the wire 4 is a cable 41 .

The electrical connection switch is a device used to transmit large voltage or large current. The conductive copper bar 31 inside has a good conductive effect, and there are usually bolts 61 for fixing the wire 4 or other conductive bars on it, so The technical solution provided by Embodiment 1 or 2 of the present invention is suitably applied. The cable 41 is a wire 4 with low current or voltage transmission loss, which is suitable for transmitting large voltage or current. At the same time, when the wire 4 is a cable 41, the terminal provided by the present invention can realize the electrical connection between the cable 41 and the first conductive part 1 without bending the cable 41, which can save the step of bending the cable 41, and the fewer the connection steps, Then the connection operation is also more labor-saving.

As shown in Figure 11, the manufacturing method of the terminal provided in this embodiment includes the following steps:

The first conductive part 1 and the second conductive part 2 with an integrated structure as shown in Figure 3 or Figure 4 are manufactured by one-time molding by using a casting process or a stamping process; or,

The manufacturing method of the connection terminal provided in this embodiment includes the following steps: using a casting process or a stamping process to manufacture the first conductive part 1 as shown in Figure 5; using a casting process or a stamping process to manufacture the second conductive part 1; Part 2; connect the first conductive part 1 and the second conductive part 2 together by riveting or screwed fasteners.

Since the manufacturing method of the connection terminal provided by the embodiment of the present invention has the same technical features as the connection terminal provided by the above-mentioned embodiment 1 or embodiment 2 of the present invention, it can also produce the same technical effect and solve the same technical problem.

The method of manufacturing the first conductive part 1 and the second conductive part 2 with a one-piece structure as shown in FIG. 3 by one-time molding by using a casting process or a stamping process can save production steps and is suitable for mass production.

The method of manufacturing the first conductive part 1 as shown in Figure 5 by one-time casting or stamping technology, and then molding the second conductive part 2 again, can choose the installation hole 21 or the installation groove of the first conductive part 1. After a suitable bending angle α between the axial direction and the second conductive part 2, they are riveted together.

Certainly, in the embodiment of the present invention, other manufacturing methods can also be used to manufacture the terminal, for example: the first end of the conductive material plate can be punched, cut or stamped first, and the first end is processed into a T shape; then, the T is bent The two symmetrical ends of the first end of the T shape are docked to form the installation hole 11 or the installation groove as shown in Figure 5 to form the first conductive part 1; then, At least one through hole 21 or notch 22 is drilled or punched out on each second end to form the second conductive portion 2 .

As shown in Figure 12, the connection method of the terminal provided in this embodiment at least includes the following steps:

S1: according to the number of wires 4 connected as shown in Figure 7 or Figure 8, select the same number of terminals;

S2: Install each wire 4 shown in Figure 7 or Figure 8 into the installation hole 11 or the installation groove;

S3: make the wire 4 installed in the installation hole 11 or the installation groove as shown in FIG. Make the wire 3 firmly connected with the inner wall of the installation hole 11 or the installation groove and electrically connected;

S4: Pass the fastener 6 shown in Figure 7 or Figure 8 through the connecting hole of the conductive row 3 and the through hole 21 or the notch 22 on the second conductive part 2 of each terminal, and make each terminal The first direction of the first conductive part 1 is parallel to and consistent with the predetermined direction; in practical applications, each connection terminal can also be roughly parallel, that is, there is an angle difference within a certain range, as long as it can overcome the difficulty in bending the wires in the prior art technical issues.

S5: Tighten or clamp the fastener 6 shown in Figure 7 or Figure 8, so that the second conductive parts 2 of adjacent terminals and the second conductive part 2 of the terminal and the conductive row are fastened electrical connection.

Since the connecting method provided by the embodiment of the present invention has the same/corresponding technical features as the connecting terminal provided by the above-mentioned embodiment 1 or embodiment 2 of the present invention and the electric device provided by the above-mentioned embodiment of the present invention, it is also Can produce the same technical effect and solve the same technical problem.

In step S4 of this embodiment, the first direction of the first conductive part 1 of each connecting terminal does not need to be absolutely parallel, and it is also possible to be approximately parallel. That is to say, in this embodiment, the first conductive part of each connecting terminal is allowed to There is an angular difference within a certain range between the first directions of 1, as long as the wire connected to the first conductive part 1 of the terminal can be avoided from bending.

As shown in Fig. 8, Fig. 9 or Fig. 10, preferably, in each embodiment of the present invention, the number of wires 4 is at least two, and the connection terminals include at least one connection terminal and a bending terminal whose bending angle α is an acute angle or a right angle. At least one terminal where the angle α is obtuse.

In this embodiment, the connection terminals with different bending angles α can be selected according to the thickness of the wire 4 connected to the connection terminal and whether the space around the conductive row 3 (mainly the space in the radial direction of the through hole 21 as shown in Figure 3) is sufficient. The electrical connection operation is performed with the conductive row 3 , so that the space around the conductive row 3 is more fully utilized.

Of course, in this embodiment, the bending angle α of the plurality of connection terminals connected to the conductive bar 3 can also be an acute angle, an obtuse angle or a right angle at the same time.

As shown in Figure 10, in each embodiment of the present invention, the number of wires 4 can also be at least three, wherein: two connecting terminals whose bending angle α is an obtuse angle are respectively connected to two wires 4, and at least one bending angle The connection terminal with an acute angle α is connected to at least one other wire 4 and is outside the two connection terminals with an obtuse angle α relative to the direction of the wire 4 outlet on the installation hole 11 or the installation groove.

In this embodiment, the space around the conductive row 3 can be fully utilized (mainly the space in the radial direction of the through hole 21 as shown in FIG. 3 ), so that one conductive row 3 can be connected to as many terminals as possible.

As shown in FIG. 5 , the direction of the outlet of the wire 4 on the installation hole 11 or the installation groove is the same as or parallel to the axial direction of the installation hole 11 .

As shown in Figure 10, among the four terminals, two terminals whose bending angle α is an obtuse angle are located in the middle, and two (in fact, one or three or more) bending angles α are acute angles (of course, the bending angle α is an acute angle). Angle α can also be a right angle) terminals are respectively located on the left or right side (that is, outside) of the two terminals whose bending angle α is an obtuse angle, and the four wires installed through the four terminals are roughly parallel and can be positioned from The wire lead-out opening (not shown in the figure) in the middle and lower part leads out of the electrical connection device (such as an electrical connection switch). That is to say, the connection terminal with an acute angle or a right angle can be located outside the two connection terminals with an obtuse angle relative to the direction of the wire outlet. .

Below enumerate several specific ways in which the conductor 4 shown in Figure 7, Figure 8, Figure 9 or Figure 10 uses the connection terminal of this embodiment to connect with the conductive row 3, wherein: the conductive conductor 4 can be a cable 41, and the conductive row 3 can be It is copper bar 31.

As shown in Figure 7, if there are two cables 41 that need to be connected to a copper bar 31 conductive element conductive bar 3, an existing terminal and a terminal with a bending angle α of 90° can be selected, or as shown in Figure 8 As shown, select two terminals with a bending angle α of 135°.

As shown in FIG. 9, if there are three cables 41 to be connected to a copper bar 31 conductive element conductive bar 3, then select an existing terminal and two terminals with a bending angle α of 90°.

As shown in Figure 10, the number of cables 41 is at least four, preferably four, wherein: two terminals with bending angles α are acute angles, preferably 45°, are connected to two cables 41 respectively, and the two bending angles α The terminals with a 45° angle are opposite to each other; the two terminals with an obtuse angle α, preferably 135°, are respectively connected to the other two cables 41, and the two terminals with a 135° angle α are opposite to each other.

In this structure, at least four cables 41 can be connected to one copper bar 31 .

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. Should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (12)

1. A connection terminal, characterized in that it includes a first conductive part and a second conductive part, wherein the first conductive part and the second conductive part are detachably or non-detachably connected, or form an integrated structure ,in: The first conductive part is provided with a mounting hole or a mounting groove, and a wire installed in the mounting hole or the mounting groove extends along a first direction of the first conductive part to connect to the first conductive part; The second conductive part has a first end connected to the first conductive part and a second end opposite to the first end, and has a through hole or a notch, the second conductive part is opposite to the The first direction is bent in a curved line or a folded line, and the bending angle is greater than 0° and less than 180°. 2 . The connection terminal according to claim 1 , wherein the through hole or the notch is opened at the second end of the second conductive portion. 3 . 3. The connection terminal according to claim 1 or 2, wherein the bending angle is 45°, 60°, 90°, 120° or 135°. 4. The connection terminal according to any one of the preceding claims, characterized in that: the first conductive part and the second conductive part are detachably connected, so that the first conductive part and the second conductive part The bending angle between the two conductive parts can be adjusted, for example, the first conductive part is connected to the second conductive part through a threaded fastener. 5. The connection terminal according to any one of the preceding claims, characterized in that: the connection terminal comprises at least two of the second conductive parts, wherein: at least two of the second conductive parts have different or same bending angle. 6. The connection terminal according to any one of the preceding claims, wherein the first conductive part and the second conductive part are made of copper, aluminum, copper alloy, or aluminum alloy. 7. An electrical device, characterized in that it includes a conductive bar with connection holes, at least one terminal according to any one of claims 1 to 6, and a fastener, wherein: The fastener passes through the connection hole and the through hole or the notch so that the second conductive parts of the adjacent connecting terminals and the second conductive parts of the connecting terminals are connected to each other. Fasten the electrical connection between the part and the conductive row. 8 . The electric device according to claim 7 , wherein the conductive bar is a conductive copper bar used to electrically connect a switch, and the wire is a cable. 9. A method of manufacturing a terminal according to any one of claims 1 to 6, characterized in that: The manufacturing method of the connection terminal includes the following steps: using a casting process or a stamping process to manufacture the first conductive part and the first conductive part of an integral structure at one time; or, The manufacturing method of the connection terminal includes the following steps: using a casting process or a stamping process to manufacture the first conductive part; using a casting process or a stamping process to manufacture the second conductive part; The conductive part is connected with the second conductive part by riveting or by a fastener provided with threads. 10. A method for connecting terminals according to any one of claims 1 to 6, characterized in that it comprises the following steps: selecting the same number of terminals according to the number of connected wires; installing each of said wires into said mounting hole or said mounting slot; The wire installed in the installation hole or the installation groove is fixedly connected to the inner wall of the installation hole or the installation groove to be electrically connected, for example, by applying a pressing force from the outer surface of the first conductive part to make the The wire is fixedly connected to the inner wall of the installation hole or the installation groove for electrical connection; Pass the fastener through the connection hole of the conductive row and the through hole or notch on the second conductive part of each terminal, and make the first direction of the first conductive part of each terminal parallel And consistent with the predetermined direction; Tightening or clamping the fasteners, so that the electrical connection is fastened between the second conductive parts of the adjacent connecting terminals and between the second conductive parts of the connecting terminals and the conductive row. 11. The connecting method according to claim 10, characterized in that: the number of the wires is at least two, and the connecting terminal includes at least one connecting terminal whose bending angle is an acute angle or a right angle and the bending At least one terminal with an obtuse angle. 12. The connecting method according to claim 11, characterized in that: the number of said wires is at least three, wherein: The two connecting terminals whose bending angle is an obtuse angle are respectively connected to two of the wires, and the at least one connecting terminal whose bending angle is an acute angle or a right angle is connected to and opposite to at least one of the remaining wires. In the direction of the lead-out opening, it is located on the outer side of the two connecting terminals whose bending angles are obtuse.

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