TWI463754B - Connector and illuminating apparatus - Google Patents

Description

Connector and lighting device

The present invention relates to a connector including a connection member between a connection wire and a connection object, and an illumination device using the connector.

In recent years, development of a lighting device using a light-emitting diode (hereinafter referred to as "LED") as a light-emitting element (hereinafter referred to as "LED bulb") has been developed. A circuit board on which an LED is mounted. In order to supply power to a circuit board, a connector for inserting a wire type is used. This connector is generally fixed to a frame of a fixed holding circuit board by screwing. However, the connection is made by screwing. The work of fixing the device on the frame does not easily manage the working hours and the tightening torque of the screw, and thus causes problems in the assembly of the lighting device.

Japanese Patent Publication No. 30679752 (Patent Document 1) or Japanese Patent Application Laid-Open No. 3069754 (Patent Document 2) discloses a wire connecting terminal for processing a conductive member to form a plate portion having a spring property. And the wire is inserted between the plates. In the wire connection terminal, one of the pair of plate portions forms a wire holding portion, and the other forms a flat contact portion for receiving the wire. When the wires are unplugged from the wire connection terminals, members that are not the same body are used. That is, the plate portion of the electric wire connection terminal is deformed by operating the members of the different bodies, so that the electric wire is easily detached.

However, since the electric wire connection terminal disclosed in Patent Document 1 or Patent Document 2 is a configuration in which a wire is removed by using a member of a different body, there is a problem that the number of parts is increased. On the other hand, if the configuration in which the wires are easily removed without using a member of a different body is made, the holding force of the wires cannot be sufficiently obtained.

Accordingly, an exemplary object of the present invention is to provide a connector which can easily increase the holding force of an electric wire and can reduce the number of parts.

Yet another illustrative object of the present invention is to provide an illumination device using the connector.

According to an exemplary aspect of the present invention, a connector is provided, which is provided with a connecting member between a connecting wire and a connecting object, the connector is characterized in that the connecting member has a body portion formed in a rectangular tube shape; An insertion portion formed on one side of the main body portion for inserting the electric wire; a spring portion disposed on the other side of the main body portion and having a contact portion for connecting the electric wire; and a terminal portion The connecting object is connected; the spring portion is formed by the first spring portion and the second spring portion disposed opposite to each other, and the contact portion of at least one of the first spring portion and the second spring portion forms the front end portion as Tip shape.

According to another aspect of the present invention, a lighting device including: the connector; an electric wire connected to the connector; an LED; and a circuit board on which the LED is mounted; On one side of the circuit substrate.

The connector of the exemplary aspect of the present invention can easily increase the holding force of the electric wire and can reduce the number of parts.

According to still another aspect of the present invention, the connector is mounted on one surface of the LED mounting substrate, so that assembly can be easily performed.

First, the overall configuration of an illumination device according to an embodiment of the present invention will be described with reference to Figs. 1 and 2 .

The illuminating device 20 of the first and second figures is a bulb-type electric lamp, and a substantially disk-shaped heat transfer member 22 is fixed to one end, that is, the upper end side of the cylindrical heat dissipating member 21 by screws or the like. The heat radiating member 21 is a die-casting product mainly composed of a metal having excellent heat conductivity such as aluminum, and a plurality of fins for heat dissipation may be formed on the outer peripheral surface thereof. Each of the heat transfer members 22 is made of a metal having excellent heat conductivity such as aluminum.

On the upper surface of the heat transfer member 22, a substantially square circuit board 23 is fixed by a plurality of screws 24. One or a plurality of LEDs 25 are mounted on the first main surface of the circuit board 23, that is, on the upper surface, and in the central portion thereof. The second main surface facing the first main surface of the circuit board 23 in the up-and-down direction, that is, the lower surface is substantially in close contact with the upper surface of the heat transfer member 22.

A dome-shaped outer cover 26 is attached to the upper surface of the heat transfer member 22 so as to cover the circuit board 23 and the LEDs 25 at intervals. The cover 26 is made of glass or a transparent, translucent resin or the like.

Two connectors 27 having the same configuration as each other are mounted on the upper surface of the circuit board 23. These connectors 27 are electrically connected to the LEDs 25 via circuit conductors (not shown) provided on the upper surface of the circuit board 23. Two power supply wires 28 for supplying power to the LEDs 25 are taken out from the two connectors 27, and the power supply wires 28 are extended to the inside of the cylindrical heat dissipation member 21. Here, each of the power supply wires 28 is formed as a core having a rod shape.

A component fixing member 29 is provided on the other end of the heat radiating member 21, that is, on the lower end side. The upper portion of the component fixing member 29 is fitted and fixed to the inner side of the lower portion of the heat radiating member 21. The lower portion of the component fixing member 29 is exposed to the outside from the heat radiating member 21, and a lamp head 31 is mounted there. The two power supply wires 28 are electrically connected to the base portion 31 via various components on the inner side of the heat dissipation member 21 . In this manner, the LED 25 can be powered via the lamp head 31, the two power supply wires 28, the two connectors 27, and the circuit board 23.

The connector 27 will be described with reference to Fig. 2 and also with reference to Figs. 3A to 3C.

The connector 27 has a conductive connecting member 32 that connects an electric wire, that is, between the power feeding wire 28 and the connecting object, that is, between the circuit board 23, and an insulating case 33 that houses the holding connecting member 32.

The casing 33 is formed with a flat suction surface 34 formed thereon, and a wire insertion portion 36 is formed on the front surface 35. The lower surface 37 of the housing 33 is opened, where a portion of the connecting member 32 is exposed. The back side 38 of the housing 33 is open in this example, but can also be closed. The suction surface 34 is adapted to adsorb and retain portions of the connector 27 by means of an adsorption tool of the automated mounting device. The wire insertion portion 36 has a function of guiding the insertion of the power supply wire 28.

The connection member 32 will be described with reference to FIGS. 2 to 3C and also to FIGS. 4A and 4B.

The connecting member 32 is formed by performing a cutting process, a bending process, and a tin plating process on the metal plate, and integrally includes a main body portion 41 formed in a rectangular tubular shape such as a rectangular tubular shape, and an insertion portion 42 formed in the cylindrical portion. One side of the main body portion 41; a first spring portion 43 and a second spring portion 44 formed on the other side of the main body portion 41; the first terminal portion 45 and the second terminal portion 46 are respectively formed on the connecting member 32 Both end sides; and an upper panel portion 48 having a fixing portion 47 for fixing to the housing 33.

The insertion portion 42 is disposed to face the wire insertion portion 36 of the casing 33 and is a portion into which the power supply wire 28 is inserted. The jitter of the power supply wire 28 inserted into the rectangular tubular body portion 41 by the insertion portion 42 is suppressed.

The first spring portion 43 and the second spring portion 44 are disposed to face each other, and are provided with contact portions 43a and 44a for contacting the power supply wires 28 on the opposing surfaces. The first spring portion 43 has greater rigidity, and the second spring portion 44 is configured to have less rigidity. Further, the tip end portion of the contact portion of at least one of the first spring portion 43 and the second spring portion 44 is formed in a tip shape. Here, the front end portion of the contact portion 44a of the second spring portion 44 is formed in a tip shape. Further, the shape shown in the figure is an acute angle, but it may be a right angle as long as it is an angle at which a tip end is formed.

The first terminal portion 45 and the second terminal portion 46 are exposed on the lower surface 37 of the casing 33 and are portions soldered to the electric circuit of the circuit board 23. The first terminal portion 45 close to the insertion portion 42 has a shape that is folded back below the body portion 41 so as not to hinder the insertion of the power supply wire 28 toward the insertion portion 42, and is provided to make excess solder during soldering. One or a plurality of gaps 45a that escape. The second terminal portion 46 remote from the insertion portion 42 is divided into two strands, and the joint portions 46a, 46b at the two portions can be welded to the circuit board 23.

The relationship between the connector 27 and the power supply wire 28 will be described with reference to FIGS. 5A to 5C.

The state before the power supply wire 28 is attached to the connector 27 is shown in Fig. 5A. When the power supply wire 28 is attached to the connector 27, the single wire portion 28a composed of the conductor of the power supply wire 28 is inserted into the wire insertion portion 36 of the connector 27. At this time, the insertion direction of the power supply wire 28 is substantially parallel to the surface of the circuit board 23 as the connection target.

By inserting the power supply wire 28 in a direction parallel to the circuit board 23, the height of the connector 27 from the circuit board 23 can be reduced, so that illumination from the LED 25 can be prevented as much as possible.

The state after the power supply electric wire 28 is attached to the connector 27 is shown in FIG. 5B. When in the state of FIG. 5B, as shown in FIG. 5C, the single wire portion 28a of the power supply wire 28 is interposed between the first spring portion 43 and the second spring portion 44 of the connecting member 32, and mainly causes the second The spring portion 44 is elastically bent toward the outside. As a result, the contact portions 43a, 44a are mainly pressed against the circumferential surface of the single wire portion 28a by the elastic restoring force of the second spring portion 44. In this state, since the front end portion of the contact portion 44a is formed in a tip shape, the single wire portion 28a can be firmly held to prevent falling off. In this way, an increase in the holding force of the power supply wire 28 can be achieved. Further, instead of the single wire portion 28a, it is also possible to use a solder on the strand.

As described above, the power supply wire 28 can be surely connected to the connector 27 with a simple operation. Therefore, the connector 27 and the LED 25 can be simultaneously mounted on the circuit board 23, and the connection of the connector 27 and the circuit board 23 can be easily performed by solder.

Next, referring to Fig. 2 and referring to Figs. 6A to 6C, a connector 27' as a modification of the connector 27 will be described.

The connector 27' is made of metal similarly to the connecting member 32 of the connector 27 described in the second to fifth embodiments. In other words, the connector 27' is the one that removes the casing 33 from the connector 27 described using the second to fifth embodiments. Therefore, the same components as those of the connecting member 32 in the connector 27' are denoted by the same reference numerals, and the description thereof will be omitted, and only the portions having different functions will be described.

The metal connector 27' is formed with a flat adsorption surface 49 on the upper surface of the upper panel portion 48. This adsorption surface 49 is also suitable for adsorbing and holding the connector 27' by the adsorption tool of the automatic mounting device. Thus, the adsorption surface 49 can be directly formed on the metal connector 27'.

The relationship between the circuit board 23, the connector 27', and the power supply wire 28 will be described with reference to Figs. 7A to 7C.

Fig. 7A shows a state before the power supply wire 28 is attached to the connector 27' mounted on the circuit board 23. The upper surface of the circuit board 23 is covered with an insulating film 51. On the electric circuit 52 where the insulating film 51 is partially removed, the connector 27' is connected by soldering. When the power supply wire 28 is attached to the connector 27', the single wire portion 28a composed of the conductor of the power supply wire 28 is inserted into the insertion portion 42 of the connector 27' (see Fig. 6A). At this time, the insertion direction of the power supply wire 28 is substantially parallel to the surface of the circuit board 23 as the connection target.

The state after the power supply wire 28 is attached to the connector 27' is shown in Figs. 7B and 7C. In the same manner as the above-described connector 27, the relationship between the power supply electric wire 28 and the connector 27' in the state shown in Figs. 7B and 7C will be described with reference to Fig. 5C again.

In Fig. 5C, the single wire portion 28a of the power supply wire 28 is interposed between the first spring portion 43 and the second spring portion 44 of the connecting member 32, and mainly elastically bends the second spring portion 44 toward the outside. As a result, the contact portions 43a, 44a are mainly pressed against the circumferential surface of the single wire portion 28a by the elastic restoring force of the second spring portion 44. In this state, since the front end portion of the contact portion 44a is formed in a tip shape, the single wire portion 28a can be firmly held to prevent falling off. In this way, an increase in the holding force of the power supply wire 28 can be achieved. Further, instead of the single wire portion 28a, it is also possible to use a solder on the strand.

As described above, the power supply wire 28 can be surely connected to the connector 27' with a simple operation. Therefore, the connector 27' and the LED 25 can be simultaneously mounted on the circuit board 23, and the connection of the connector 27' to the circuit board 23 can be easily performed by solder.

Further, the present invention is not limited to the above embodiment, and some or all of them may be described in the following attached notes, but are not limited thereto.

(Note 1)

A connector provided with a connector 27 that connects a connecting member 32 between the electric wire 28 and the connection object 23, the connector being characterized in that the connecting member has a body portion 41 formed in a rectangular tube shape; a portion 42 formed on one side of the body portion for inserting the electric wire, and spring portions 43, 44 disposed on the other side of the main body portion, and having contact portions 43a, 43b for connecting the electric wires; Terminal portions 45, 46 are connected to the connection object; the spring portion is composed of a first spring portion 43 and a second spring portion 44 disposed opposite each other, and at least the first spring portion and the second spring portion The contact portion 43a or 44a of one of the portions forms the tip end portion in a pointed shape.

(Note 2)

The connector according to the first aspect, wherein the terminal portion has a first terminal portion 45 and a second terminal portion that are connected to one side of the main body portion and the other side, and are soldered to the connection portion of the connection object. 46.

(Note 3)

The connector according to attachment 2, wherein at least one of the first terminal portion and the second terminal portion has a notch.

(Note 4)

The connector of claim 2, wherein at least one of the first terminal portion and the second terminal portion is folded back below the body portion.

(Note 5)

The connector according to any one of claims 1 to 4, wherein the connector is a connector that is mounted on one surface of the object to be connected, and the wire is inserted in a direction parallel to one of the faces of the object to be connected Connecting member.

(Note 6)

The connector according to any one of the preceding claims, wherein the connector is a connector to which the connection object is mounted, and one surface of the body portion serves as an adsorption surface 49.

(Note 7)

The connector according to any one of the first to sixth aspects, which has an insulative housing 33 that houses and holds the connecting member.

(Note 8)

A lighting device comprising: the connector 27 according to any one of the preceding claims 1 to 7, an electric wire 28 connected to the connector; an LED 25; and a circuit board 23 on which the LED is mounted; the connector It is mounted on one surface of the circuit board.

20. . . Lighting device

twenty one. . . Heat sink

twenty two. . . Heat transfer member

twenty three. . . Circuit substrate

twenty four. . . Screw

25. . . led

26. . . Cover

27. . . Connector

27’. . . Connector

28. . . Power supply wire

28a. . . Single line

29. . . Component fixing member

31. . . Lamp head

32. . . Connecting member

33. . . case

34. . . Adsorption surface

35. . . Front face of the housing

36. . . Wire insertion section

37. . . Under the casing

38. . . Back of the casing

41. . . Body part

42. . . Insertion

43. . . First spring

43a. . . Contact

44. . . Second spring

44a. . . Contact

45. . . First terminal part

45a. . . gap

46. . . Second terminal

46a, 46b. . . Connection

47. . . Fixed part

48. . . Upper panel

49. . . Adsorption surface

51. . . Insulating film

52. . . Electrical circuit

Fig. 1 is a perspective view showing the appearance of an illumination device according to an embodiment of the present invention.

Fig. 2 is a perspective view showing the outer cover of the lighting device of Fig. 1 removed.

Fig. 3A is a perspective view showing a connector, which is a component of the illumination device shown in Figs. 1 and 2;

Fig. 3B is a perspective view as seen from the lower side of the connector of Fig. 3A.

Fig. 3C is a perspective view as seen from the back side of the connector of Fig. 3A.

Fig. 4A is an exploded perspective view of the connector shown in Figs. 3A to 3C.

Fig. 4B is only a perspective cross-sectional view of the connecting member shown in Fig. 4A.

Fig. 5A is a perspective view showing a state before the electric wires are attached to the connectors shown in Figs. 3A to 3C.

Fig. 5B is a perspective view showing a state in which the electric wires are attached to the connectors shown in Figs. 3A to 3C.

Fig. 5C is a cross-sectional view showing the relationship between the electric wire and the internal mechanism of the connector in the state of Fig. 5B.

Fig. 6A is a perspective view showing a variation of the connector.

Fig. 6B is a perspective view as seen from the lower side of the connector of Fig. 6A.

Fig. 6C is a perspective view as seen from the back side of the connector of Fig. 6A.

FIG. 7A is a perspective view showing a state in which the connector shown in FIGS. 6A to 6C is mounted on a circuit board and the electric wires are attached.

FIG. 7B is a perspective view showing a state in which the connector shown in FIGS. 6A to 6C is mounted on a circuit board and an electric wire is attached.

Fig. 7C is a perspective view as seen from the back side of the same state as Fig. 7B.

32. . . Connecting member

33. . . case

36. . . Wire insertion section

41. . . Body part

42. . . Insertion

43. . . First spring

44. . . Second spring

45. . . First terminal part

45a. . . gap

46. . . Second terminal

46a. . . Connection

47. . . Fixed part

48. . . Upper panel

Claims (8)

A connector having a connecting member that connects electrical conductivity between a connecting wire and a connecting object, the connector being characterized in that the connecting member has a body portion formed in a square tubular shape, and an insertion portion formed in the connector One side of the main body portion for inserting the electric wire; a spring portion disposed on the other side of the main body portion and having a contact portion for connecting the electric wire; and a terminal portion connected to the connection object; the spring The portion is composed of a first spring portion and a second spring portion which are disposed opposite to each other, the first spring portion has a relatively large rigidity, the second spring portion has a small rigidity, and the contact portion of the second spring portion is a front end thereof The portion is formed in a tip shape. The connector of claim 1, wherein the terminal portion has a first terminal portion and a second terminal that are respectively connected from one side of the body portion and the other side and are soldered to the connection portion of the connection object. unit. The connector of claim 2, wherein at least one of the first terminal portion and the second terminal portion has a notch. The connector of claim 2, wherein at least one of the first terminal portion and the second terminal portion is folded back below the body portion. The connector according to claim 1, wherein the connector is a connector that is mounted on one surface of the object to be connected, and the wire is inserted into the connecting member in a direction parallel to one surface of the object to be connected. For example, the connector of the first application of the patent scope, wherein the connector is equipped A connector connected to the object to be connected, the one surface of the body portion being an adsorption surface. The connector of claim 1, wherein the connector has an insulating housing that houses the connecting member. A lighting device, comprising: a connector according to any one of claims 1 to 7; an electric wire connected to the connector; an LED; and a circuit board on which the LED is mounted; Mounted on one side of the circuit board.