KR101574978B1 - Busbar relay MC module - Google Patents

Abstract

An object of the present invention is to provide a bus bar relay MC module, which comprises: a bus bar (10) electrically connected to a current carrying circuit; And a plurality of relay MCs 20 connected to the bus bar 10 so as to be energized so that currents applied to the bus bars 10 are uniformly distributed and supplied, The bus bar 10 is connected to each terminal 22 of the relay MC 20 so as to be energizable one by one and the relay MC 20 is connected to the two Are connected in parallel to the bus bars 10A and 10B.

Description

Bus bar relay MC module}

The present invention relates to a bus bar relay MC module, and more particularly, to a bus bar relay MC module designed to serve as a high capacity MC (Magnetic Cotactor) in parallel connection of relays. The present invention is applicable to a dual-module board in which two module boards can be assembled symmetrically and can be used in a double capacity and can be used in a unified state. The bus bar (horseshoe bus bar) To a bus bar relay MC module designed to have the same performance and the same current by making the potential difference uniform. The present invention also relates to a bus bar relay MC module having a structure suitable for mass production because of its ease of manufacture.

Relay MC (Magnetic Contactor) is a solenoid type in which a movable core and a fixed core are closely contacted by the magnetic force of a permanent magnet attached between a movable core and a fixed core. When a power (voltage) is applied to the coil, And the movable core is tripped in the fixed core when the attraction force is lower than the force of the spring by the magnetic force in the opposite direction.

On the other hand, a plurality of relays and the like are mounted on an electric distribution box in which relays and the like are arranged, and each relay is electrically connected to the electronic device. A bus bar consists of one conducting body for supplying a large amount of electric current to the electric distribution box and supplying power to each fuse. At this time, one side of the bus bar is connected to a power supply (battery or the like), and the other side of the bus bar is connected to an electric distribution box having a relay or the like.

Accordingly, when the relay MC is electrically connected to the relay MC through the bus bar, the relay MC is switched on and supplies power to the electronic device, and the relay MC is powered off The Lily MC is switched off and the power supply to the electronic device is interrupted.

However, existing relay MC (Magnetic Contactor) has a problem that the defect rate is high after installation. Relay MC is switched on and off about 110,000 to 120,000 times. In the case of existing relay MC, for example, if 100 pieces are installed, one defective occurs in about one month, resulting in a problem that the reliability is greatly reduced. In case of relay MC, the failure rate is about 1% after 10 years of installation. For example, if 100 relay MCs are installed for 10 years, it takes 120 months for all 100 relay MCs to fail. If it is divided into 10 years, it can be considered that the period of failure of one relay MC is about 1.2 months, so that it can be concluded that the life of the relay MC is too short until the failure occurs have. In other words, the reliability of the relay MC has not been sufficiently long in the past, and the reliability of the relay MC is low, and maintenance and the like are not preferable.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the problem that the life of the relay MC is remarkably prolonged so that the reliability of the relay MC is greatly reduced over time, The present invention is directed to provide a new bus bar relay MC module having various positive effects such as being unfavorable in the case of a bus bar relay.

In addition, the present invention is designed to serve as a high capacity MC (Magnetic Cotactor) in parallel connection of relays, and two module boards can be assembled symmetrically so that they can be used in double capacity and can be used singularly. The bus bar (horseshoe bus bar) is designed to enable the same performance and the same current to be supplied by energizing each port with large currents received from the primary side of each relay to equalize the potential difference. The main purpose is to provide a bus bar relay MC module with structure.

According to an aspect of the present invention, there is provided a bus bar comprising: a bus bar electrically connected to a current carrying circuit; And a plurality of relay MCs connected to the bus bar so as to be energized so as to be switched on and off so that a current to be applied to the bus is uniformly distributed and supplied to a current use destination.

The relay MC is provided with conductive terminals at both ends, and the bus bars are connected to the respective terminals of the relay MC in such a manner that they can be energized, and the relay MC is connected in parallel to the two bus bars.

And the bus bar is provided with a flow guide space for guiding the current to flow in both directions symmetrical with respect to the current flowing in the direction of the relay MC.

The relay MC is provided with conductive terminals at both ends thereof so that the terminals of the plurality of relay MCs are electrically connected to a plurality of terminal connector holes provided in the width direction of the bus bar, And the flow guide space is formed in a slot shape extending in the width direction through the top and bottom at a position between the terminal connecting hole and the current connecting hole so that the current connecting hole and the terminal The flow is made to flow symmetrically in both widthwise directions of the bus bar by the flow guide space when the current flows between the connect holes, and supplied (flowed in a horseshoe shape) to the respective relay MCs.

Wherein the bus bars are formed with a plurality of terminal connector holes at regular intervals along the width direction so that the terminals of the relay MC are electrically connected to the terminal connecting holes and the bus bars are provided with two symmetrical currents And a flow guide space is formed between the two symmetrical current flow guide pieces.

The relay MC is provided with conductive terminals at both ends thereof. The bus bars are electrically connected to the respective terminals of the relay MC one by one, and at least one of the two bus bars is connected to a connector extending in a direction orthogonal to the width direction. A foot piece is further provided.

The relay MC is provided with conductive terminals at both ends thereof so that the terminals of the plurality of relay MCs are electrically connected to a plurality of terminal connector holes provided in the width direction of the bus bar, A current connecting hole is formed on the opposite end side and a flow guide space is formed in a slot shape extending in the width direction through the upper and lower portions at a position between the terminal connecting hole and the current connecting hole.

The bus bar is formed with eight terminal connector holes at regular intervals along the width direction, and eight terminal terminals of the relay MC are connected to the terminal connector hole so as to be energized.

The bus bar relay MC module of the present invention is a bus bar relay MC module in which a plurality of relay MC groups are arranged symmetrically with each other and connected to each other on a current carrying circuit (circuit board etc.) in parallel so that the amount of current can be doubled, And the relay MC modules of two groups are arranged in parallel on both sides symmetrically so that the potential difference can be made uniform and the relay MC of each group is arranged symmetrically so that the size of both sides The compact structure makes it easy to save installation space and installation work. In other words, according to the present invention, two module boards (a plurality of relay MCs and a circuit board on one side, and a plurality of relay MCs and a circuit board on the other side) are assembled symmetrically, And the bus bar (horseshoe bus bar) has a strong point in that it is designed to have the same performance, the same current can be conducted by energizing the large current received from the primary side of each relay to equalize the potential difference, The bus bar relay MC module having a structure suitable for mass production is provided.

Particularly, the present invention is advantageous in that a plurality of small-capacity relay MCs are connected in parallel to equalize the potential difference, thereby reducing the defect rate after installation unlike the conventional relay MC. Relay MC is switched on / off by about 110,000 to 120,000 times. In the case of existing relay MC, for example, when 100 pieces are installed, one defective occurs in about one month, which causes a problem that the reliability is greatly reduced. However, Has a defective rate remarkably lower than that of the prior art, which is highly reliable and has an advantage that the lifetime is remarkably improved as compared with the prior art.

In other words, according to the present invention, a module designed to serve as a high capacity MC (magnetic contactor) in parallel connection of relays is remarkably low in failure rate compared with existing MCs, and has a low cost.

In addition, the present invention can be used in two-fold capacity when two module boards are assembled symmetrically, and it is possible to use single unit because of its excellent usability. Also, a horseshoe bus bar used together with the module board It is designed so that the same potential and the same current can be conducted by equalizing the potential difference between the buses energizing the port. It has become easy to manufacture and is suitable for mass production. The use of mass-production low-cost relays will enable supply-demand and cost-saving effects to be expected.

In addition, the present invention replaces the use of a high-capacity high-priced relay in designing a mass-produced low-cost relay redundant use, and includes a relay-side control and an inspection function. A symmetrical bus bar of a horseshoe shape for energizing the module (meaning a plurality of relay MCs and a circuit board on one side and a plurality of relay MCs and a circuit board on the other side) is advantageous in preventing current biases, By preventing the phenomenon, it is possible to realize a uniform current distribution diagram for each relay MC, thereby contributing to prolongation of life.

1 is an external perspective view showing a structure of a relay MC module of the present invention;
Fig. 2 is a perspective view showing the structure of the relay MC module of the present invention shown in Fig. 1 on the opposite side;
3 is an external perspective view of a bus bar,
4 is a perspective view showing a modified embodiment of a bus bar,
Figure 5 is a perspective view showing yet another modified embodiment of the bus bar,
Fig. 6 is an external perspective view of the relay MC module having the bus bar shown in Fig.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The objects, features and advantages of the present invention will be more readily understood by reference to the accompanying drawings and the following detailed description. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

In describing the components of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected or connected to the other component, Quot; may be "connected," "coupled," or "connected. &Quot;

It is to be understood that the present invention may be embodied in many different forms and should not be construed as limited to the exemplary embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. The present invention should not be construed as limited to the embodiments described in Figs.

Referring to the drawings, a bus bar relay MC module according to an embodiment of the present invention includes a bus bar 10 electrically connected to a current energizing circuit, a bus bar 10 connected to the bus bar 10 so as to be energized, The relay MC 20 includes a plurality of relay MCs 20 that are switched on and off so that the currents applied to the current sources are uniformly distributed and supplied to the current use destination.

The relay MC 20 is a switching device in which an internal magnet is switched on according to power application. The relay MC 20 is provided with conductive terminals 22 at both ends thereof. On both terminals 22 of the relay MC 20, fastening holes for fastening such as bolts are formed. In the present invention, a plurality of relay MCs (20) are arranged in parallel, and a plurality of relay MCs (20) and a plurality of relay MCs (20) are grouped into two opposing circuit boards So that each relay MC 20 group is arranged so as to be symmetrical on one side and the other side. That is, a plurality of relay MCs 20 are mounted on one circuit board 28 and a plurality of relay MCs 20 are mounted on another circuit board 28, And the MCs 20 are disposed at the two-sided positions symmetrical to each other. In the present invention, the two circuit boards 28 are arranged in a state of being spaced apart by a supporting means such as a support rod, four parallel relay MCs 20 are mounted on one circuit board 28, And the other relay MCs 20 arranged side by side are mounted on the other circuit board 28. In other words, four parallel relay MCs 20 are arranged at one position with respect to the center position of the two parallel circuit boards 28, and four parallel relay MCs 20 are arranged at the other position. At this time, the two opposing circuit boards 28 are spaced apart from each other but are configured to be connected to each other in a circuit, and the plurality of relay MCs 20 (eight relay MCs 20 in the present invention) And to be switched on and off simultaneously according to the power-off. The plurality of relay MCs 20 are connected in parallel to each other on the current flow circuit and each relay MC 20 has the same capacity so that the same amount of current is distributed to each relay MC 20 do.

Bus bars 10 are connected to each of the conductive terminals 22 provided at both ends of the relay MC 20 so as to be energized one by one. Each relay MC 20 is connected in parallel to two bus bars 10A and 10B.

One bus bar 10A of the two bus bars 10A and 10B is formed in a plate shape (a rectangular plate shape) of a conductive material (metal or the like) Terminal connection holes 13 are formed at regular intervals. The terminal connecting hole 13 is in the form of a screw hole and a fastener (bolt or the like) coupled to the fastening hole of the terminal 22 provided at one end of the relay MC 20 is inserted into the terminal connecting hole (Coupled in a bolt manner) to the bus bar 10 so that one end of the relay MC 20 is electrically connected to one bus bar 10. Also, the bus bar 10 has a flow guide space 12 for guiding currents to flow in both symmetrical directions by intercepting a current flowing in the direction of the relay MC 20. The flow guide space 12 is formed as a long hole extending in the width direction of the bus bar 10. A current connecting hole 14 is formed at the opposite end of the bus bar 10 opposite to the terminal connecting hole 13 and the flow guide space 12 is formed at a position between the terminal connecting hole 13 and the current connecting hole 14 And extends in the width direction so as to extend linearly.

Among the two bus bars 10A and 10B, the other bus bar 10B is formed in the shape of a tin plate of a conductive material (metal or the like). At this time, on the proximal end side of the other bus bar 10B, a plurality of terminal connector holes 13 are formed at regular intervals in the width direction. The terminal connecting hole 13 is in the form of a screw hole and a fastener (bolt or the like) coupled to the fastening hole of the terminal 22 provided at the other end of the relay MC 20 is inserted into the terminal connecting hole (Connected in a bolt manner) to the other bus bar 10 so that the other end of the relay MC 20 is energized. The bus bar 10B also has a flow guiding space 12 for guiding the flow of current in both symmetrical directions by shutting off the current flowing in the direction of the relay MC 20. [ The flow guide space 12 is formed as a long hole extending in the width direction of the bus bar 10. A current connecting hole 14 is formed on the end portion of the bus bar 10B opposite to the terminal connecting hole 13 (precisely, a portion adjacent to the connecting foot piece 16 having a tapered shape) Is formed in a slot shape extending vertically and horizontally at a position between the terminal connecting hole (13) and the current connecting hole (14) and extending linearly in the width direction. That is, terminals 22 at both ends of the plurality of relay MCs 20 are connected to a bus bar 10A in a plate-like shape and a bus bar 10B in a tier-plate shape, respectively. That is, the relay MC 20 is provided with conductive terminals 22 at both ends, and each bus bar 10 is connected to each terminal 22 of the relay MC 20 in such a manner that one bus bar 10 can be energized. The other bus bar 10B is further provided with a connect foot piece 16 extending in a direction orthogonal to the width direction of the other bus bar 10A and 10B, The difference is that it is.

5 and 6 show a modified embodiment of the bus bar 10A, which is the main part of the present invention. The bus bars 10A shown in Figs. 5 and 6 have a plurality of And the terminal 22 of the relay MC 20 is connected to the terminal connecting hole 13 so as to be energizable. The bus bar 10A is provided with two terminal connecting holes 13, A flow guide space 15 is formed between the two symmetrical current flow guide pieces 15, and a flow guide space 12 is formed between the two symmetrical current flow guide pieces 15. The bus bar 10A shown in Figs. 5 and 6 is provided with two flow guide pieces symmetrically positioned at left and right, instead of forming the flow guide space 12, so that the bus bar 10A is apparently formed in a horseshoe shape And at the same time, current flows to the horseshoe shape.

According to the present invention having the above-described configuration, when a plurality of relay MCs 20 are connected between one bus bar 10A and the other bus bar 10B connected in parallel, two relay MCs A current flows between the bus bars 10A and 10B and when the current flows between the current connecting hole 14 side of the one bus bar 10A and the terminal connecting hole 13, (Flows in the shape of a horseshoe) to the respective relay MCs 20 so that the current through each relay MC 20 flows to the other bus bar 10B The flow guide space 12 is also provided in the other bus bar 10B so that the flow is flowed (in the shape of a horseshoe) so that the current is symmetrical on both widthwise sides of the other bus bar 10B, Be authorized have.

At this time, in the present invention, a plurality of groups of relay MCs 20 are arranged symmetrically with each other and are connected in parallel to each other on a current carrying circuit (meaning circuit board 28 or the like), so that the amount of current is doubled The relay MCs of the two groups are symmetrically arranged on both sides so that the potential difference can be made even. The relay MCs 20 of each group are symmetrical So that the size of the both sides can be made compact so that the ease of installation space saving and installation work can be achieved. In other words, the present invention is characterized in that two module boards (a plurality of relay MCs 20 and a circuit board 28 on one side and a plurality of relay MCs 20 and a circuit board 28 on the other side) The bus bar 10 (the horseshoe bus bar) energizes the respective ports with large currents received from the primary sides of the respective relays to equalize the potential differences, thereby achieving the same Bus barrel MC module is provided which has a strength in terms of designing to be able to conduct the same current and has a structure suitable for mass production due to its ease of fabrication.

Particularly, the present invention is advantageous in that a plurality of small-capacity relay MCs 20 are connected in parallel to equalize the potential difference, so that the defect rate after installation is greatly reduced unlike the conventional relay MC 20. [ The relay MC 20 is switched on / off by about 110,000 to 120,000 times. In the case of the existing relay MC 20, for example, if 100 pieces are installed, one failure occurs in about one month, However, the present invention has the advantage that the defective rate is remarkably lower than that of the prior art, and thus the reliability is high and the life span is remarkably improved as compared with the prior art.

The present invention is about one-third of the price and the lifetime of the present invention is increased ten times or more. In the present invention, the main relay relay MC 20 is a small capacity and is connected to the bus bar 10 in parallel while being disposed in a plurality of positions on one side (front side) and a plurality of the relay MCs 20 on the other side All of the relay MCs are switched on and off at the same time (in the normal state when no current is applied, the solenoid is normally turned off by the spring force), and the bus bar 10 is driven by the flow guide space 12 Only a part of the plurality of relay MCs 20 are switched on (that is, only four of the eight relay MCs 20 are switched on), and the relay MCs 20 are configured to flow in a symmetrical manner ), So that the probability of failure of all eight relay MCs 20 after installation is remarkably reduced compared to the conventional case, On it will have the advantage of being considerably extended compared. When the capacity of the current is large, when only one large-capacity relay MC 20 is used, the load applied to the relay MC 20 becomes unreasonably large so that there is a high probability that the relay MC 20 is burned out due to overload, However, the present invention has a disadvantage in that a plurality of small-capacity relay MCs 20 are connected in parallel to each other so that a high-capacity current The relay MC 20 can be uniformly dispersed and flowed through each of the relay MCs 20 so that there is no possibility that the relay MC 20 is overloaded due to the high capacity current, It is remarkably low, and it has a merit that the lifetime becomes remarkably longer than the conventional one. Since the bus bars 10, in which the respective relay MCs 20 are connected in parallel, are also provided with a structure in which electric current flows in a horseshoe shape and flows (a structure in which electric power is dispersed and flowed equally), compared to the conventional general relay MC 20 Contributing to prolonging the life span, and contributing to lowering prices by a factor of three. In the present invention, since only a part of the plurality of relay MCs 20 (for example, eight relay MCs 20) is switched on and off, the reliability of the relay MCs 20 is very high.

In the case of the relay MC 20, it is assumed that the failure rate is about 1% after 10 years since the installation. Assuming that 100 relay MC 20 of the present invention is installed, 10 relay MC 20 of the eight relay MCs 20 are set to 8%. In the present invention, eight relay MCs 20 are provided in each of four positions, and four of them can operate. That is to say, if the four relay MCs 20 fail, it can be said that the malfunction has occurred and the life span is exhausted. Therefore, since 8% / 50% ≒ 6.2, the present invention requires about 62 years of malfunction And the lifetime of the relay MC 20 is sufficiently ensured. As a result, the reliability of the relay MC 20 is reduced over time, And have several advantages, such as probable, even If prices about one-third of existing is enough to.

The invention is a module designed to serve as a high capacity MC (Magnetic Contactor) in parallel connection of a relay MC (20). Its failure rate is remarkably low compared to conventional MCs, and its low price is also excellent. The two module boards are symmetrical The horseshoe bus bar 10, which is used together with the bus bar 10, is provided with a bus bar 10 for energizing each port with a large current received from the primary side to each relay, So that the same performance and the same current can be conducted. It has become easy to manufacture and is suitable for mass production. We can expect supply-demand and cost-saving effects by using mass production low-cost relay.

It is to be understood that the terms "comprises", "comprising", or "having" as used in the foregoing description mean that a component can be implanted unless specifically stated to the contrary, But should be construed as further including other elements. All terms, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Commonly used terms, such as predefined terms, should be interpreted to be consistent with the contextual meanings of the related art, and are not to be construed as ideal or overly formal, unless expressly defined to the contrary.

The foregoing description is merely illustrative of the technical idea of the present invention and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

10. Bus bar 10A. One bus bar
10B. The other bus bar 12. Flow guide space
13. Terminal Connector Hole 14. Current Connector Hole
15. Current flow guide 16. Connection foot
20. Relay MC 22. Terminal
28. Circuit board

Claims (8)

A bus bar (10) electrically connected to the current conducting circuit;
And a plurality of relay MCs (20) connected to the bus bar (10) so as to be energized so as to be switched on and off so that a current applied to the bus bar (10) is uniformly distributed and supplied,
The relay MC 20 has conductive terminals 22 at both ends thereof and the bus bars 10 are connected to the respective terminals 22 of the relay MC 20 so as to be energizable. 20 are connected in parallel to two bus bars 10A, 10B.
Wherein the bus bar (10) comprises a flow guide space (12) for guiding a flow of current in both symmetrical directions by intercepting a current flowing in the direction of the relay MC (20) .
delete delete The method according to claim 1,
The relay MC 20 has electrically conductive terminals 22 at both ends thereof and is connected to a plurality of terminal connecting holes 13 provided in the width direction of the bus bar 10, And a current connecting hole 14 is formed at an opposite end of the bus bar 10 opposite to the terminal connecting hole 13. The flow guide space 12 is connected to the terminal connecting hole 13, And the current connecting hole (14), and when the current flows between the current connecting hole (14) side and the terminal connecting hole (13) Wherein the current is flowed in the guide space (12) such that the current is symmetrically symmetrical in both widthwise directions of the bus bar (10) and supplied to the respective relay MCs (20).
The method according to claim 1,
The bus bars 10 are formed with a plurality of terminal connecting holes 13 at regular intervals along the width direction so that the terminals 22 of the relay MC 20 are connected to the terminal connecting holes 13 so as to be energized Two symmetrical current flow guide pieces 15 are provided on both sides of the bus bar 10 in the width direction so that the flow guide space 12 is formed between the two symmetrical current flow guide pieces 15 The bus bar relay MC module is characterized by.
The method according to claim 1,
The relay MC 20 has conductive terminals 22 at both ends and is connected to each terminal 22 of the relay MC 20 such that the bus bar 10 is energizable. And at least one of the bus bars (10A, 10B) is provided with a connect foot piece (16) extending in a direction orthogonal to the width direction.
The method according to claim 6,
The relay MC 20 has electrically conductive terminals 22 at both ends thereof and is connected to a plurality of terminal connecting holes 13 provided in the width direction of the bus bar 10, A current connecting hole 14 is formed on an end side opposite to the terminal connecting hole 13 of the bus bar 10 so that the terminal connecting hole 13 and the current connecting hole 13 And a flow guide space (12) extending in the width direction and penetrating through the upper and lower surfaces in a slot-shaped flow guide space (12).
The method according to claim 1,
Eight terminal connection holes 13 are formed at regular intervals along the width direction of the bus bar 10 so that the terminals 22 of the eight relay MCs 20 are electrically connected to the terminal connecting hole 13 Bus bar relay MC module.

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