阅读说明：本技术 汇流条用连接器 (Connector for bus bar ) 是由 秦承均 于 2019-07-11 设计创作，主要内容包括：本发明涉及一种汇流条用连接器,连接器包括条状的指部,所述指部划分为中央部、对称地形成在所述中央部的两侧的一对端部以及分别形成在所述中央部与一对端部之间的一对连接部,其中,所述汇流条用连接器包括：复数个指部,在垂直于长度方向的厚度方向上堆叠至少两个以上以形成一侧部,在厚度方向上堆叠至少两个以上并与所述一侧部相对布置以形成另一侧部；一对螺旋弹簧,一端固定在所述一侧部而另一端固定在另一侧部,该一对螺旋弹簧配置为以所述指部的中央部为基准彼此隔开预定间隔；以及支架,支撑所述一侧部和另一侧部。(The present invention relates to a bus bar connector including a strip-shaped finger portion divided into a central portion, a pair of end portions symmetrically formed on both sides of the central portion, and a pair of connecting portions respectively formed between the central portion and the pair of end portions, wherein the bus bar connector includes: a plurality of fingers stacked at least two or more in a thickness direction perpendicular to the length direction to form one side portion, and stacked at least two or more in the thickness direction and arranged opposite to the one side portion to form the other side portion; a pair of coil springs having one end fixed to the one side portion and the other end fixed to the other side portion, the pair of coil springs being disposed to be spaced apart from each other by a predetermined interval with reference to a center portion of the finger portion; and a bracket supporting the one side portion and the other side portion.)

1. A connector for a bus bar, the connector comprising a bar-shaped finger portion divided into a central portion, a pair of end portions symmetrically formed on both sides of the central portion, and a pair of connecting portions respectively formed between the central portion and the pair of end portions, wherein the connector comprises:

a plurality of fingers forming one side portion formed by stacking at least two or more fingers in a thickness direction perpendicular to a longitudinal direction of the fingers and another side portion formed by stacking at least two or more fingers in the thickness direction and disposed facing the one side portion;

a pair of coil springs, one end of each coil spring being fixed to the one side portion and the other end of each coil spring being fixed to the other side portion, the coil springs being arranged to be spaced apart from each other by a predetermined distance with respect to a center portion of the finger portion; and

a bracket supporting the one side portion and the other side portion.

2. The connector for bus bars according to claim 1, wherein,

the pair of coil springs are respectively disposed at the pair of connecting portions of the finger portion.

3. The connector for bus bars according to claim 2, wherein,

the pair of coil springs is arranged at least two or more in the thickness direction of the finger portion.

4. The connector for bus bars according to claim 2, wherein,

a pair of connecting parts of the fingers are formed with a recessed groove at a side thereof, the recessed groove forming a fastening hole with the recessed groove of the adjacent finger in the one side part and the other side part,

both ends of each of the pair of coil springs are inserted into the fastening holes to be fixed.

5. The connector for bus bars according to claim 4, wherein,

both ends of each of the pair of coil springs are bent to form hook portions,

the connector further includes a mounting pin disposed on an outer side surface of the one side portion or an outer side surface of the other side portion, and hook portions of the pair of coil springs are mounted on the mounting pin.

6. The connector for bus bars according to claim 5, wherein,

a first seating groove in which a part of the mounting pin can be seated is formed in the finger portion in a thickness direction.

7. The connector for bus bars according to claim 1, wherein,

each of a pair of ends of the finger, at which the one side portion and the other side portion face each other, is formed in an arc shape or a tapered shape.

8. The connector for bus bars according to claim 1, wherein,

the bracket includes:

a center plate disposed between the one side portion and the other side portion; and

and a pair of side panels extending from both sides of the central panel and disposed on both sides of the one side portion and the other side portion.

9. The connector for bus bars according to claim 8, wherein,

each of the pair of side panels is formed with a fixing hole,

the connector further includes a fixing pin penetrating the fixing hole and disposed on an outer side surface of each of the one side portion and the other side portion.

10. The connector for bus bars according to claim 8, wherein,

a second seating groove in which the central plate can be seated is formed in a central portion of the finger portion in a thickness direction.

11. The connector for bus bars according to claim 8, wherein,

a fastening hole for bolt-fastening with a bus bar inserted between the one side and the other side is formed in the pair of side panels.

Technical Field

The present invention relates to a connector for a bus bar having an improved structure.

Background

A bus bar (bus bar) is a conductor for transmitting electric power, and is widely used in various fields.

For example, an Air Circuit Breaker (Air Circuit Breaker), which is one of Circuit breakers, is an industrial power device for protecting life and load devices, which interrupts a Circuit using Air as an arc extinguishing medium when an abnormal current occurs, and a bus bar is also included in the Air Circuit Breaker.

An air circuit breaker including such a bus bar is described in korean laid-open patent No. 10-2013-0036931 (title of the invention: insulated contact device for air circuit breaker).

Specifically, referring to the above-mentioned prior patent, the related art air circuit breaker may include a cradle and a breaker body detachably mounted to the cradle in an energizable manner.

It is described that, in order to electrically connect the cradle and the breaker body, the cradle includes an insulated contact device, and when the insulated contact device is disposed in the cradle, the front of the insulated contact device is connected to the terminal of the breaker body, and the rear of the insulated contact device is connected to the external terminal.

That is, the prior art insulated contact device performs a function of a connector capable of connecting bus bars as connection terminals in two directions, and such a prior art connector has the following problems.

First, the structure in which the bus bar is inserted into the connector of the related art is realized by stacking a plurality of finger portions in the thickness direction, and since the finger portions are manufactured in a shape in which a plate spring needs to be arranged outside, the manufacturing cost may increase.

In addition, since the plate spring used in the connector of the related art must be manufactured in consideration of its structure to provide elastic force to each finger, the manufacturing cost may increase.

In addition, the finger portions may be stacked in the thickness direction as the case may be, in consideration of the rated voltage or the rated current, but in this case, there is a problem in that if the number of the finger portions is changed, a plate spring having a width corresponding to the change needs to be additionally manufactured.

In addition, the shape of the support as a bracket for fixing the finger is complicated, and thus the manufacturing cost may increase.

In addition, when the connector is manufactured by assembling the respective components having the complicated structure as described above, since a long manufacturing time is required, there are problems in that productivity is lowered and maintenance and repair are not easy.

Disclosure of Invention

Problems to be solved by the invention

The present invention has been made to solve the above problems, and an object of the present invention is to provide a connector for bus bars having a simple structure and capable of reducing manufacturing costs and improving assembling performance and productivity.

Means for solving the problems

In order to achieve the above object, the present invention provides a connection for a bus bar, in a connector including a finger portion in a bar shape, the finger portion being divided into a central portion, a pair of end portions symmetrically formed on both sides of the central portion, and a pair of connection portions respectively formed between either one of the central portion and the pair of end portions and between the central portion and the other of the pair of end portions, the connection for the bus bar, comprising: a plurality of fingers stacked at least two or more in a thickness direction perpendicular to the length direction to form one side portion, and stacked at least two or more in the thickness direction and arranged opposite to the one side portion to form the other side portion; a pair of coil springs, one end of each coil spring being fixed to the one side portion and the other end of each coil spring being fixed to the other side portion, the pair of coil springs being arranged to be spaced apart from each other by a predetermined interval with reference to a center portion of the finger portion; and a bracket supporting the one side portion and the other side portion.

Further, the pair of coil springs may be disposed at the pair of connection portions of the finger portion, respectively.

In addition, the pair of coil springs may be arranged at least two or more in the thickness direction of the finger portion.

In addition, a pair of connection parts of the fingers may be formed at side surfaces thereof with recessed grooves forming fastening holes with the recessed grooves of the adjacent fingers in the one and the other side parts, and both ends of each of the pair of coil springs may be inserted into the fastening holes to be fixed.

Further, both ends of each of the pair of coil springs may be bent to form hook portions, and a mounting pin may be further provided to be disposed on an outer side surface of the one side portion or an outer side surface of the other side portion, and the hook portions of the pair of coil springs may be hung on the mounting pin.

In addition, a first seating groove may be formed in the finger in a thickness direction, into which a portion of the mounting pin can be seated.

In addition, a pair of ends of the finger portions opposed to each other at the one side portion and the other side portion may be formed in an arc shape or a tapered shape.

In addition, the bracket may include: a center plate disposed between the one side portion and the other side portion; and a pair of side panels extending from both sides of the central panel and disposed on both sides of the one side portion and the other side portion.

In addition, a fixing hole may be formed in each of the pair of side panels, and a fixing pin may be further included, the fixing pin passing through the fixing hole and being disposed on an outer side surface of each of the one side portion and the other side portion.

In addition, in the central portion of the finger portion, a second seating groove may be formed in a thickness direction, into which the central plate is seated.

In addition, a fastening hole for bolt-fastening with a bus bar inserted between the one side and the other side may be formed in the pair of side panels.

ADVANTAGEOUS EFFECTS OF INVENTION

Since the present invention fixes the finger parts and the coil spring having the symmetrical structure with each other by the mounting pin, the assembling performance and the productivity can be improved, and the easy assembling and the productivity can be ensured even if the number of the finger parts is increased in consideration of the rated voltage or the rated current.

In addition, since the present invention has a symmetrical structure with each other, it is possible to improve assembling performance of upper components such as the bracket.

Drawings

Fig. 1 is a side view showing a state in which a bus bar and a terminal are fastened, respectively, at both sides of a connector for a bus bar according to an embodiment of the present invention.

Fig. 2 is a top view of fig. 1.

Fig. 3 is a perspective view in which a holder is removed from a connector for bus bars according to an embodiment of the present invention.

Figure 4 is a side view of a finger according to an embodiment of the present invention.

Fig. 5 is a perspective view of a coil spring according to an embodiment of the present invention.

Fig. 6 is a perspective view of a stent according to an embodiment of the present invention.

Description of the reference numerals

100: bus bar connector 110: finger part

110 a: a side portion 110 b: the other side part

110 c: fastening hole 111: center part

112: a pair of end portions 113: a pair of connecting parts

114: recessed groove 115: the first placing groove

116: the second disposition groove 120: a pair of helical springs

121: hook 130: support frame

131: the center plate 132: side panel

132 a: fixing hole 132 b: fastening hole

Detailed Description

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Unless otherwise defined, all terms used in the present specification have the same general meaning as terms understood by those of ordinary skill in the art, and the definitions used in the present specification are followed when the terms used in the present specification contradict the general meaning of the terms.

The invention described below is intended only to illustrate an embodiment of the invention and is not intended to limit the claims of the invention, and the same reference numerals are used throughout the specification to designate the same components.

Fig. 1 is a side view showing a state where a bus bar and a terminal are fastened, respectively, at both sides of a connector for a bus bar according to an embodiment of the present invention, fig. 2 is a plan view of fig. 1, fig. 3 is a perspective view in which a bracket is removed from the connector for a bus bar according to the embodiment of the present invention, fig. 4 is a side view of a finger according to the embodiment of the present invention, fig. 5 is a perspective view of a coil spring according to the embodiment of the present invention, and fig. 6 is a perspective view of the bracket according to the embodiment of the present invention.

Referring to fig. 1 to 6, a connector 100 for bus bars according to an embodiment of the present invention may include a finger 110, a coil spring 120, and a bracket 130, and may further include a mounting pin 140 or a fixing pin 150.

A plurality of the fingers 110 may be stacked to form one side 110a and the other side 110b of the connector 100 for bus bars according to the embodiment of the present invention.

Specifically, the finger part 110 has a strip shape, and may be divided into a central portion 111, a pair of end portions 112 symmetrically formed at both sides of the central portion 111, and a pair of connection portions 113 respectively formed between the central portion 111 and either one of the pair of end portions 112 and between the central portion 111 and the other one of the pair of end portions 112.

In addition, the finger part 110 in a bar shape has a length direction d1 and a thickness direction d2 perpendicular to such a length direction d1, and when the one side part 110a and the other side part 110b are formed, a face facing each other may be defined as an inner side surface, a face opposite to the inner side surface may be defined as an outer side surface, and a face between the inner side surface and the outer side surface may be defined as a side surface.

In this state, the fingers 110 are stacked at least two or more in a thickness direction d2 perpendicular to the length direction d1 to form one side portion 110a, and may be stacked at least two or more in a thickness direction d2 and arranged to face the one side portion 110a to form the other side portion 110 b.

Here, the one side portion 110a and the other side portion 110b may be made of a single member, but may be implemented by stacking a plurality of the fingers 110 as described above so that a rated voltage or a rated current required for the device may be considered.

Accordingly, the present invention includes the finger 110, the shape of the elastic member, and the fastening structure in consideration of easy assembly.

Specifically, in each of the fingers 110 forming the one and other sides 110a and 110b, a recessed groove 114 is formed at a side of the pair of connection parts 113, and the recessed groove 114 may form a fastening hole 110c with the recessed groove 114 of the adjacent finger 110 of the one and other sides 110a and 110 b.

Such a fastening hole 110c serves as a structure for fastening a coil spring 120 described later.

In addition, a first seating groove 115 may be formed in the finger 110 in the thickness direction d2, and a portion of a mounting pin 140, which will be described later, may be seated in the first seating groove 115.

Such first seating grooves 115 may be formed at outer side surfaces of the fingers 110, and may be connected with the first seating grooves 115 of the adjacent fingers 110 to improve fastening ease of the mounting pins 140, which will be described later.

Further, a second seating groove 116 may be formed in the central portion 111 of the finger portion 110 in the thickness direction d2, and a central plate 131 of a bracket 130 described later may be seated in the second seating groove 116.

Such second seating grooves 116 may be formed at inner side surfaces of the fingers 110, and may be connected with the second seating grooves 116 of the adjacent fingers 110 to improve fastening ease and accuracy of a central plate 131 to be described later.

In addition, inner side surfaces of a pair of ends 112 of the finger 110 facing each other in the one side portion 110a and the other side portion 110b are each formed in an arc shape or a tapered shape, so that the connector 100 for bus bars according to the embodiment of the present invention can accurately achieve fastening of the bus bars even if a step occurs when assembled to an upper part such as a bracket (not shown).

The coil spring 120 has a pair, and one end of the coil spring 120 is fixed to the one side portion 110a and the other end is fixed to the other side portion 110b, and the pair of coil springs 120 are arranged at a predetermined interval from each other with reference to the central portion 111 of the finger portion 110.

Such a pair of coil springs 120 are symmetrically arranged with reference to the central portion 111 of the finger portion 110, so that it is possible to secure a fastening force of the connector 100 for bus bars according to the embodiment of the present invention with bus bars to be fastened on both sides.

Specifically, the pair of coil springs 120 may be disposed at the pair of connection portions 113 of the finger 110, respectively.

In addition, both ends of each of the pair of coil springs 120 may be inserted into the fastening holes 110c to be fixed.

In addition, since the fastening hole 110c may be formed in the one side portion 110a or the other side portion 110b along the thickness direction d2 of the finger 110, at least two or more coil springs 120 may be disposed in the thickness direction d2 of the finger 110.

The structure for fixing the pair of coil springs 120 in the fastening hole 110c, respectively, may be implemented in various well-known manners.

For example, both ends of each of the pair of coil springs 120 may be bent to form the hook portions 121. In this case, a mounting pin 140 is disposed on an outer surface of the one side portion 110a or an outer surface of the other side portion 110b, and the hook portions 121 of the pair of coil springs 120 may be fixed by being hung on the mounting pin 140.

The bracket 130 may support the one side portion 110a and the other side portion 110 b.

Specifically, the bracket 130 may include: a center plate 131 disposed between the one side portion 110a and the other side portion 110 b; and a pair of side plates 132 extending on both sides of the central plate 131 and disposed on both sides of the first side portion 110a and the second side portion 110b, respectively.

The central plate 131 is vertically and uprightly disposed between the one side portion 110a and the other side portion 110b, and both sides of the central plate 131 may be seated to the second seating grooves 116 formed at the central portions 111 of the fingers 110.

Such a center plate 131 may be formed to be greater than or equal to a distance between the one side portion 110a and the other side portion 110b, whereby the pair of coil springs 120 may be subjected to a tensile force when being fixed by the mounting pins 140.

The side panels 132 may be formed as a pair by bending both ends of the central panel 131 by about 90 °.

The pair of side panels 132 are disposed on both sides of the one side portion 110a and the other side portion 110b, and may have fixing holes 132a formed therein.

The fixing hole 132a may be formed to correspond to an outer side surface of the central portion 111 of the finger portion 110, and the connector 100 for bus bars according to an embodiment of the present invention may further include a fixing pin 150 penetrating the fixing hole 132a to be disposed at an outer side surface of each of the one side portion 110a and the other side portion 110b to support the outer side surface of each of the one side portion 110a and the other side portion 110 b.

In addition, a fastening hole 132b may be formed in the pair of side panels 132, the fastening hole 132b for bolt fastening with a bus bar inserted between the one side 110a and the other side 110 b.

The assembly process of such a connector 100 for bus bars according to an embodiment of the present invention is as follows.

First, a plurality of fingers 110 are stacked in the thickness direction d2 to form one side 110a and the other side 110 b.

Then, the center plate 131 is disposed between the one side portion 110a and the other side portion 110b, and after the pair of coil springs 120 are inserted into the fastening holes 110c formed in the one side portion 110a, the respective hooks 121 are fixed by the mounting pins 140.

Then, the hook 121 is inserted into the fastening hole 110c formed at the other side 110b and fixed by the mounting pin 140, and then the fixing pin 150 is inserted.

In short, the connector 100 for bus bars according to the embodiment of the present invention has a symmetrical shape, and thus has advantages in that not only can the assembling performance be improved, but also the size of the connector 100 for bus bars can be easily and rapidly changed using the fastening structure of the finger 110 and the coil spring 120.

As described above, it is obvious to those skilled in the art to which the present invention pertains that various changes and modifications can be made without departing from the scope of the technical idea of the present invention, and the technical scope of the present invention is not limited to the contents disclosed in the embodiments but should be determined by the scope of the claims and the equivalent scope thereof.

Industrial applicability

The present invention has industrial applicability because it can provide a connector for a bus bar that can reduce manufacturing costs and improve assembling performance and productivity by having a simple structure.