KR102120486B1 - Micro Switch With Clad Type - Google Patents

Abstract

The present invention relates to a clad-type micro-switch having structurally high stability and durability. According to the present invention, the clad-type micro-switch includes: a housing part; a terminal part including a first terminal module and a second terminal module; a connector part including a central portion, a first contact portion forming a first groove with the central portion, and a second contact portion forming a second groove with the central portion, and configured such that the second contact portion is separated from the second terminal module when the first contact portion makes contact with the first terminal module, and the first contact portion is separated from the first terminal module when the second contact portion makes contact with the second terminal module; a cover part; a sliding part; an elastic body part; and a bead part located in the second groove when an external force is applied to a handle module of the sliding part, and restored into the first groove when the external force is removed from the handle module.

Description

Micro Switch With Clad Type

The present invention is a technology associated with a switch mounted on a seat of a vehicle to control the operation of each section.

Recently,'electric seats', which were applied only to high-end vehicles, have been applied to many medium-sized and semi-medium-sized vehicles due to the convenience of consumers and the increase in requirements. In addition, the range in which the electric seat used mainly for the driver's seat is also applied to the passenger seat and the second row seat is gradually widening. In addition, the frequency of use is also increasing.

As the range of use for the electric seat is widened and the frequency of use is increased, the development of switches with improved performance and functions is actively underway.

Many of the electric seat actuation control switches currently in use are connected to the motor. At this time, the motor operates and generates a back EMF to carbonize the switch. Carbonization of the switch has been a factor that deteriorates the durability of the switch.

To solve this problem, a switch has been developed that uses an electromagnet to drive the seat with a signal generated through magnetic force. However, the developed switch is designed so that the contact point of the switch piece is made by the low power of the electromagnet, so even if the power is cut off due to the residual magnetic force during long-term use, the contact point of the switch does not reach the desired time and the contact is made longer. have. In addition, due to these problems, there is a problem that the sheet cannot be smoothly moved.

In order to solve this problem, the applicant creates a switch signal as disclosed in Korean Registered Utility Model No. 20-0400108, that is, a contact signal is generated only when the user presses the movable piece and maintains a contactless state when releasing the pressing force. A switch for seat control of the structure was developed.

1, the switch for adjusting the seat is a structure in which the contact portion 126 is installed at one end of the rotating piece 120. The seat adjustment switch is manufactured through a process in which a perforated hole is formed at one end of a pivoting piece, and a contact portion 126 is connected to the perforated hole.

The rotating piece 120 and the contact portion 126 constituting the switch for adjusting the seat are very small in size. Accordingly, the process of forming a perforated hole at one end of the rotating piece and the process of accurately installing the contact portion at the perforated hole are accompanied by many difficulties. And the difficulty of this process is a factor that lowers the process efficiency of the switch as the defect rate increases.

Republic of Korea Utility Model No. 20-0400108 (Announcement date: 2005. 11.02)

The present invention is an example of a problem occurring in the process of forming a contact portion at one end of the connector portion in the process of manufacturing the connector, that is, the above-mentioned problem, to solve the problem of reducing the process efficiency and increasing the defect rate of the switch. will be. In addition, another problem of the conventional seat control switch is to solve the problem that a specific part of the connector part in contact with the rotation shaft is easily worn.

In addition, the present invention seeks to solve the problem of poor contact between the connector and the terminal terminal during operation and carbonization of the connector.

Thus, the problem to be solved of the present invention is not limited to the problems mentioned above, and other problems to be solved that are not mentioned will be clearly understood by those skilled in the art from the following description.

To achieve the above object, the clad type micro switch of the present invention is installed on a seat of a vehicle to drive a motor for operating the seat. The clad type micro switch has an accommodation space formed therein and includes a first electrode connection module and a second electrode connection module installed in the accommodation space, and a hinge module between the first electrode connection module and the second electrode connection module. Housing portion comprising a;

A terminal unit including a first terminal module coupled to one end protruding from the first electrode connection module and a second terminal module coupled to one end protruding from the second electrode connection module;

A center portion in which alloys of silver (Ag) and nickel (Ni) are fused to the lower surface, and bent at the central portion to form a first groove with the central portion, and an alloy of silver (Ag) and copper (Cu) fused to the lower surface. 1 contact portion and a second contact portion which is bent at the central portion and forms a second groove with the central portion, and a second contact portion in which an alloy of silver (Ag) and copper (Cu) is fused to the lower surface, wherein the first contact portion is the first terminal A connector unit in which the second contact unit is separated from the second terminal module when it is in contact with a module, and when the second contact unit is contacted by the second terminal module, the first contact unit is separated from the first terminal module;

A plurality of perforation holes formed on an upper surface and a cover part covering an upper portion of the housing part;

It includes a body module, a handle module protruding upward from the body module, and an elastic body connecting module protruding downward from the body module, wherein the handle module is protruded into the perforated hole and is applied to the external pressure applied to the handle module. A sliding part sliding correspondingly;

Once the elastic body portion is installed on the elastic body connection module and

It is interposed between the elastic body portion and the connector portion, the upper end is accommodated in the second contact portion of the elastic body portion and the lower end is located in the first groove, when an external force is applied to the handle module, it is located in the second groove, and the handle When the external force is removed to the module includes a bead that is restored to the first groove,

The connector portion,

A process in which the first fusion groove, the second fusion groove and the third fusion groove are formed apart on the brass plate,
A process in which an alloy of silver and nickel is fused to the second fusion groove,
A process in which an alloy of silver and copper is fused to the first fusion groove and the third fusion groove to a thickness greater than or equal to the fusion thickness alloyed to the second fusion groove, and formed into a working plate
The process in which the cutting plate is cut in the horizontal direction,
The center portion and the first contact portion and the shape of the longitudinal section between the center portion and the second contact portion is formed by a process including a process of bending into a'W' shape,
Alloys containing silver and copper are fused to each of the first fusion groove 311 and the third fusion groove 313 to the same thickness,
An alloy including silver and nickel may be fused to the second fusion groove 312 to a thickness thinner than that of the alloy fused to the first fusion groove and the second fusion groove.

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A clad type micro switch according to the present invention includes a contact portion formed by forming a groove on a surface in a process in which a connector portion is manufactured, and an alloy of silver and copper fused to the formed groove. In particular, the contact portion is accurately located in the correct place, the cladding type micro switch including such a contact portion is provided with a contact portion on the rotating piece of the switch for adjusting the seat, so as not to cause the problem of deterioration into defective products. In addition, the contact part is not installed in the correct position to generate an unstable connection signal.

Moreover, the clad type micro switch fuses an alloy of silver and nickel to a part of the groove formed in the process in which the connector part is manufactured (where the connector part rotates when large wear occurs), so that a large wear does not occur on a part of the connector part. do.

In addition, such a clad type micro switch has structurally high stability and durability, and exhibits features that can conduct high currents.

1 is a view showing the internal structure of a conventional switch for seat adjustment.
2 is a perspective view showing a clad type micro switch according to an embodiment of the present invention.
3 is an exploded perspective view of a clad type micro switch according to an embodiment of the present invention.
FIG. 4 is a cross-sectional view of the clad type micro switch of FIG. 2 cut through the seat back with line II'.
5 is a view showing a procedure of manufacturing the connector portion of the present invention.
6 is an operation diagram of the clad type micro switch of the present invention.

Advantages and features of the present invention, and methods for achieving them will be clarified with reference to embodiments described below in detail together with the accompanying drawings.

However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only the present embodiments allow the disclosure of the present invention to be complete, and common knowledge in the art to which the present invention pertains. It is provided to completely inform the person having the scope of the invention, and the present invention is only defined by the scope of the claims. The same reference numerals refer to the same components throughout the specification.

Hereinafter, a clad type micro switch according to an embodiment of the present invention will be described in general with reference to FIG. 2.

2 is a perspective view showing a clad type micro switch according to an embodiment of the present invention.

The clad type micro switch 1 is a device that is mounted on a seat of a vehicle and controls the power of a motor that drives the seat. Such a clad type micro switch 1 has a strong durability characteristic in a portion where large wear occurs in the connector portion 30 according to the switching operation of the sliding portion 50. And the clad type micro switch 1 has a structurally high safety based on this characteristic. And it shows the characteristics that can safely conduct high currents based on the features of structurally high stability and high durability.

The clad type micro switch 1 includes a housing portion 10 in which a receiving space 110 is formed, a terminal portion 20 installed in the receiving space 110, a connector portion 30, a sliding portion 50, and an elastic body. It includes a portion 60, a bead portion 70 and a cover portion 40 covering the housing portion 10 and the like as components.

Hereinafter, the components constituting the clad type micro switch according to the embodiment of the present invention will be described in detail with reference to FIGS. 3 to 5.

3 is an exploded perspective view of a clad type micro switch according to an embodiment of the present invention, and FIG. 4 is a cross-sectional view of the clad type micro switch of FIG. 1 cut along the line I-I'. And Figure 5 is a view showing the order of manufacturing the connector portion of the present invention.

The housing 10 is a skeleton of the clad type micro switch 1. The housing part 10 has an accommodation space 110 formed therein and includes a first electrode connection module 111, a second electrode connection module 112, and a hinge module 113 installed in the accommodation space 110. Can be. Here, the first electrode connection module 111 and the second electrode connection module 112 are objects to which the terminal unit 20 is connected, and the hinge module 113 is the first electrode connection module 111 and the second electrode. It is located between the connection modules 112 and supports the central portion 310 of the connector portion 30 and becomes an object that allows electricity to be conducted. In addition, the housing portion 10 may be covered by a cover portion 40 having a plurality of perforated holes 410 communicating with the receiving space 110.

The terminal part 20 is always in contact with a part of the connector part 30 regardless of whether the sliding part 50 moves. The terminal unit 20 includes a first terminal module 211 and a second terminal module 212. Here, the first terminal module 211 is a terminal coupled to one end protruding from the first electrode connection module 111, and the second terminal module 212 is coupled to protrude one end from the second electrode connection module 112. Terminal.

The connector unit 30 contacts one terminal module of the first terminal module or the second terminal module by the pressure received from the sliding unit 50. That is, the cornnet jaw 30 is operated by pressure and implements a switch switching function. More specifically, in the connector portion 30, the first contact portion 321 is connected to the first terminal module 211 by the pressure received from the sliding portion 50, or the second contact portion 322 is the second terminal module. It is connected to (212) and the electrical path between the first contact portion 321 and the hinge module 113 or the second contact portion 322 and the hinge module 113 to form an electric path.

The connector part 30 is composed of two connectors, that is, the first connector 30A and the second connector 30B, and the first connector 30A and the second connector 30B are symmetrical and the housing 10 is in the opposite direction. ) It is combined inside. That is, the connector unit 30 may be coupled in a symmetrical direction inside the housing 10 as shown in FIG. 2.

The first connector 30A and the second connector 30B have a central portion 310 in which an alloy of silver (Ag) and nickel (Ni) is fused on the lower surface, and an alloy of silver (Ag) and copper (Cu) on the lower surface. The fused first contact portion 321 and the lower surface of the alloy of silver (Ag) and copper (Cu) are formed in a structure including the fused second contact portion 322.

As shown in FIG. 5, the connector part 30 is formed by separating the first fusion groove 311, the second fusion groove 312, and the third fusion groove 313 from the brass plate 31. 2 A process in which an alloy of silver and nickel is fused to the fusion groove 312, an alloy of silver and copper is fused to the first fusion groove 311 and the third fusion groove 313, and a processed plate having undergone such a process ( 32) may be formed through a process of cutting in the longitudinal direction and a process of bending the cut member. At this time, the connector portion 30 may be bent into a structure in which the first groove 331 and the second groove 332 as shown in FIG. 4 are formed between the central portion 310 and the first contact portion 321. . For example, as shown in FIG. 4, the connector portion 30 has a shape of a longitudinal section between the central portion 310 and the first contact portion 321 and the central portion 310 and the second contact portion 322'W' 'It can be bent to be shaped.

In particular, the connector portion 30 of the present invention is manufactured by a process in which a groove is formed in the manufacturing process, and an alloy is fused to the groove. In addition, the connector portion 30 of the present invention can solve the problem of the conventional seat adjustment switch, that is, the inconvenient process of connecting the contact portion of a smaller size than the rotating piece to a slightly sized rotating piece.

In the connector portion 30 having such a shape, when the first contact portion 321 contacts the first terminal module 211, the second contact portion 322 is separated from the second terminal module 212, and the second contact portion When the unit 322 contacts the second terminal module 212, the first contact unit 321 may be separated from the first terminal module 211. In addition, the thickness of the alloy fused to the first fusion groove 311 and the third fusion groove 313 of the connector portion 30 is the same, and the thickness of the alloy fused to the second fusion groove 312 is the first fusion. The thickness of the alloy fusion to the groove 311 and the third fusion groove 313 may be thinner.

As such, a plurality of contact portions formed in the connector portion 30 is formed in the process of manufacturing the connector portion 30 and the connector portion 30 can be bent.

The sliding portion 50 protrudes from the upper portion of the perforated hole 410 of the cover portion 40 and slides in response to external pressure to move the connector portion 30. The sliding portion 50 includes a body module 510, a handle module 520 protruding upward from the body module 510, and an elastic body connecting module 530 protruding downward from the body module 510. In addition, the elastic body portion 60 is accommodated through the elastic body connection module 530, and the bead portion 70 can be moved on the connector portion 30 through the elastic body 60. Here, the elastic body portion 60 has an elastic force, one end is connected to the elastic body connection module 530, the other end is formed of a structure that can accommodate the bead portion (70). And based on this structure, the elastic body portion 60 pushes the bead portion 70 downward so that the connector portion 40 can always stably reach the contact point. In addition, a restoring force is generated so that the sliding part 50 can be restored smoothly after operation.

The bead portion 70 may be a bead formed of a non-conductor. The bead portion 70 moves to the second groove 332 when the lower end portion is located in the first groove 331 and an external force is applied to the handle module 520. In addition, the bead portion 70 is located in the first groove 331 or the second groove 332, so that the lower surface of the central portion 310 is always in contact with the hinge module 113 by applying a load load. When the external force is removed from the handle module 520, the bead part 70 is restored to the first groove 331 based on the restoring force of the elastic body part 60.

Hereinafter, the operation of the clad type micro switch of the present invention will be described in detail with reference to FIG. 6.

6 is an operation diagram of the clad type micro switch of the present invention.

The cladding type micro switch 1 maintains the first terminal module 211 formed on the bottom surface of the housing 110 and the first contact portion 321 of the connector portion 30 in contact with the electricity. Then, when the sliding part 50 is moved to the right by external pressure, the first contact part 321 of the connector part 30 is moved upward, and the second contact part 322 of the other end is the second terminal module 212. Cut off electricity that is in contact with the electricity. That is, the clad type micro switch 1 maintains the Normally Closed (NC) state and then switches to the Normally Open (NO) state. In addition, when the external pressure applied to the sliding part 50 is removed, the clad type micro switch 1 restores the connector part 30 back to its original position and switches from the Normally Open (NO) state to the Normally Closed (NC) state. do.

The clad type micro switch 1 that operates in this way is fused with an alloy of 40% silver (Ag) and 60% copper (Cu) mixed with the first contact part 321 and the second contact part 322, and has high hardness. And exhibits features with wear resistance. In addition, the second contact portion 322 may exhibit a characteristic in which an alloy manufactured by a powder sintering method is fused to exhibit high wear resistance even at a thin thickness.

The clad type micro switch 1 is manufactured by a process in which a plurality of grooves are formed on the surface and a contact portion where alloys of silver and copper are fused is formed in the formed grooves in the process of the connector portion 30 manufacturing. Thus, the clad type micro switch 1 can be manufactured without a problem that occurs in a process in which a contact portion is installed in the connector portion 30, that is, a process in which a defective rate is increased.

Moreover, the clad type micro switch 1 may not include an unstable connection signal generated by the unstablely installed contact part in an incorrect position, including the contact part accurately installed in the correct position.

In other words, the clad type micro switch 1 of the present invention can be manufactured through a process of forming a contact portion in the connector portion 30 and a process having high process efficiency of durability. In particular, the clad type micro switch 1 may not generate an unstable connection signal when the contact portion is correctly formed in the connector portion 30 and the connector portion 30 is connected to the terminal module. In addition, the clad type micro switch 1 does not generate an arc when the connector portion 30 contacts the first terminal module 211 or the second terminal module 212, and the contact portion is carbonized by the back EMF generated in the motor portion. It may not be.

Through this, the clad type micro switch 1 can safely conduct even high currents while the structurally high stability and durability of the contact portion are installed.

Those of ordinary skill in the art to which the present invention pertains will appreciate that the present invention may be implemented in other specific forms without changing its technical spirit or essential features. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. The scope of the present invention is indicated by the scope of the claims, which will be described later, rather than the detailed description, and all the modified or modified forms derived from the meaning and scope of the claims and their equivalent concepts are included in the scope of the present invention. Should be interpreted.

1: clad type micro switch
10: housing 110: accommodation space
111: first electrode connection module 112: second electrode connection module
113: hinge module
20: terminal
211: Terminal 1 module 212: Terminal 2 module
30: connector
30A: 1st connector 30B: 2nd connector
31: brass plate 32: machined plate
311: first fusion groove 312: second fusion groove
313: Third fusion groove
310: central portion 321: first contact portion
322: second contact point
331: first groove 332: second groove
40: cover portion 410: perforated hole
50: sliding portion 510: body module
520: handle module 530: elastic body connection module
60: elastic body portion 70: bead portion

Claims (3)

In the micro-switch mounted on the seat of the vehicle to control the power of the motor driving the seat,
An accommodation space 110 is formed inside and includes a first electrode connection module 111 and a second electrode connection module 112 installed in the accommodation space 110, and the first electrode connection module 111 and the A housing part 10 including a hinge module 113 installed between the second electrode connection modules 112;
A first terminal module 211 coupled to one end protruding from the first electrode connection module 111 and a second terminal module 212 coupled to one end protruding from the second electrode connection module 112 Terminal portion 20;
A central portion 310 in which an alloy of silver (Ag) and nickel (Ni) is fused to the lower surface,
The first contact portion 321, which is bent at the central portion 310, forms a first groove 331 with the central portion, and an alloy of silver (Ag) and copper (Cu) is fused to the lower surface,
It is bent in the central portion 310 and forms the central portion 310 and the second groove 332, and includes a second contact portion 322 in which an alloy of silver (Ag) and copper (Cu) is fused to the lower surface,
When the first contact unit 321 is in contact with the first terminal module 211, the second contact unit 322 is separated from the second terminal module 212, and the second contact unit 322 is A connector unit 30 in which the first contact unit 321 is separated from the first terminal module 211 when it contacts the second terminal module 212;
A plurality of perforated holes 410 formed on an upper surface and a cover part 40 covering the upper part of the housing part 10;
It includes a body module 510, a handle module 520 protruding upward from the body module 510, and an elastic body connecting module 530 protruding downward from the body module 510, and includes the handle module 520. ) The sliding portion 50 is formed to protrude to the perforated hole 410 to slide in response to the external pressure applied to the handle module 520;
Once the elastic body portion 60 is installed on the elastic body connection module 530 and
The elastic body portion 60 is interposed between the connector portion 30, the upper end is accommodated in the second contact portion 322 of the elastic body 60, the lower end is located in the first groove 331, the When the external force is applied to the handle module 520 is located in the second groove 332, and when the external force is removed to the handle module 520 includes a bead portion 70 that is restored to the first groove 331,
The connector portion 30,
A process in which the first fusion groove 311, the second fusion groove 312 and the third fusion groove 313 are spaced apart from the brass plate 31,
A process in which an alloy of silver and nickel is fused to the second fusion groove 312,
An alloy of silver and copper is fused to the first fusion groove 311 and the third fusion groove 313 to a thickness greater than or equal to the fusion thickness alloyed to the second fusion groove 312 and formed of a processing plate 32 fair,
The process in which the cutting plate 32 is cut in the horizontal direction,
The center portion and the first contact portion and the shape of the longitudinal section between the center portion and the second contact portion is formed by a process including a process of bending into a'W' shape,
Alloys containing silver and copper are fused to each of the first fusion groove 311 and the third fusion groove 313 to the same thickness,
A clad type micro switch in which an alloy containing silver and nickel is fused to the second fusion groove 312 to a thickness thinner than the thickness of the alloy fusion to the first fusion groove and the third fusion groove.
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