connector

Abstract

To provide a connector capable of suppressing the influence of a laser beam emitted during soldering on a housing.SOLUTION: A connector 100 includes a housing 10, a terminal 40 that is inserted into and accommodated in the housing 10 from behind, and a wiring member 50 disposed in the rear part of the housing 10 and connected to the terminal 40, and the housing 10 includes a terminal accommodating portion 11 having a terminal accommodating chamber 13 in which the terminal 40 is accommodated, and a wiring member pedestal portion 12 having a terminal insertion hole 23 that communicates with the terminal accommodating chamber 13 by being attached to the rear part of the terminal accommodating portion 11, and the wiring material pedestal portion 12 has a color having a high reflectance with respect to the laser light L with respect to the terminal accommodating portion 11.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a connector. [Background technology]

[0002] Patent Document 1 discloses a connector in which terminals provided on a housing are inserted into through holes in a printed wiring material and soldered to form a connection. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-64571 Summary of the Invention [Problem to be solved by the invention]

[0004] However, when soldering is performed by irradiating a laser beam, the laser beam may be irradiated onto the housing through the gap between the terminal and the through-hole of the printed wiring material, which may cause changes in the physical properties of the housing and reduce its insulating properties.

[0005] In this case, the color of the housing can be made a low-absorption color such as white that does not easily absorb the heat of the laser light; however, since the color of the housing is determined according to the location and purpose of use, it may be difficult to easily make the color of the housing a low-absorption color in order to avoid the effects of irradiation with laser light.

[0006] The present invention has been made in consideration of the above-mentioned circumstances, and its object is to provide a connector that can suppress the influence of laser light irradiated on the housing during soldering. [Means for solving the problem]

[0007] The above object of the present invention can be achieved by the following configuration.

[0008] Housing and a terminal inserted into the housing from the rear and accommodated therein; a wiring material disposed at a rear portion of the housing and connected to the terminal; A connector comprising: The housing includes: a terminal accommodating portion having a terminal accommodating chamber in which the terminal is accommodated; a wiring material base portion having a terminal insertion hole that communicates with the terminal accommodating chamber by being assembled to a rear portion of the terminal accommodating portion, The wiring material base portion has a color that has a high reflectivity to laser light compared to the terminal accommodating portion. death , The wiring material base portion has a step portion on an inner wall of the terminal insertion hole that blocks the laser light directed toward the terminal accommodating portion. connector. [Effects of the Invention]

[0009] According to the present invention, it is possible to provide a connector that can suppress the influence of laser light irradiated onto the housing during soldering.

[0010] The present invention has been briefly described above. The details of the present invention will become clearer by reading the following detailed description of the invention (hereinafter referred to as "embodiments") with reference to the accompanying drawings. [Brief explanation of the drawings]

[0011] [Figure 1] FIG. 1 is a perspective view of a connector according to the present embodiment. [Figure 2] FIG. 2 is an exploded perspective view of the connector according to the present embodiment. [Figure 3] FIG. 3 is a plan view of a housing that constitutes the connector. [Figure 4] FIG. 4 is a cross-sectional view taken along line AA in FIG. [Figure 5] FIG. 5 is an enlarged view of a portion of FIG. [Figure 6]FIG. 6 is an enlarged view of a part of FIG. 4 illustrating the soldering process using laser light. DETAILED DESCRIPTION OF THE INVENTION

[0012] Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

[0013] Fig. 1 is a perspective view of a connector according to this embodiment. Fig. 2 is an exploded perspective view of the connector according to this embodiment. Fig. 3 is a plan view of a housing that constitutes the connector. Fig. 4 is a cross-sectional view taken along line AA in Fig. 3.

[0014] 1 and 2, the connector 100 according to this embodiment includes a housing 10, a plurality of terminals 40, a wiring material 50, and a cover 60. The plurality of terminals 40 are accommodated in the housing 10 and connected to the wiring material 50. The forward-protruding housing 10 of this connector 100 is fitted into a mating housing (not shown) of a mating connector. This electrically connects the terminals 40 of the connector 100 to the mating terminals (not shown) of the mating connector.

[0015] 3 and 4, the housing 10 is composed of a terminal accommodating portion 11 and a wiring material base portion 12, and the wiring material base portion 12 is assembled to the rear portion of the terminal accommodating portion 11. The terminal accommodating portion 11 and the wiring material base portion 12 that constitute the housing 10 are each molded from an insulating resin material.

[0016] The wiring material base portion 12 has a color that has a higher reflectivity to laser light than the terminal accommodating portion 11. For example, the wiring material base portion 12 has a low-absorption color that does not easily absorb the heat of laser light, such as white. The terminal accommodating portion 11 has a plurality of terminal accommodating chambers 13, into which terminals 40 are inserted from the rear side and accommodated. Each terminal accommodating chamber 13 is formed with a lance portion 13a that engages and prevents the inserted terminal 40 from coming out.

[0017] 2, terminal accommodating portion 11 has locking claws (locking portions) 14 formed on both side surfaces near the rear end. Terminal accommodating portion 11 also has a recess 15 on the top surface at the center, and a locking lever 16 for engaging and disengaging with a mating housing is integrally formed in recess 15. Locking lever 16 has a pair of arms 17 connected to the front end of terminal accommodating portion 11 and extending rearward, pressing portions 18 provided at the rear ends of arms 17, and locking claws 19 formed in the middle of arms 17.

[0018] 4, the wiring material base portion 12 has a plurality of terminal insertion holes 23, and terminals 40 are inserted into these terminal insertion holes 23 from the rear side. A step portion 23a is formed in the terminal insertion holes 23. As a result, the inner shape of the terminal insertion holes 23 is larger on the rear side than on the front side, with the step portion 23a as the boundary.

[0019] As shown in Fig. 2, the wiring material base portion 12 is formed with locking pieces (locking portions) 24 having locking holes 24a near both ends on the tip side, which is the side that is assembled to the terminal accommodating portion 11. The wiring material base portion 12 also has a recess 25 on its center upper surface side. When the wiring material base portion 12 is assembled to the terminal accommodating portion 11, the locking lever 16 of the terminal accommodating portion 11 is positioned in this recess 25. The wiring material base portion 12 also has a positioning protrusion 26 (see Fig. 4) formed on the rear surface, and locking recesses 27 formed on both side surfaces.

[0020] The wiring material base portion 12 is assembled to the terminal accommodating portion 11 from its rear side. When the wiring material base portion 12 is assembled to the terminal accommodating portion 11, the locking claw 14 of the terminal accommodating portion 11 engages with the locking hole 24a of the locking piece 24 of the wiring material base portion 12. This fixes the wiring material base portion 12 to the terminal accommodating portion 11, thereby forming the housing 10. In this state, the terminal accommodating chamber 13 of the terminal accommodating portion 11 and the terminal insertion hole 23 of the wiring material base portion 12 are in communication with each other. Furthermore, by assembling the wiring material base portion 12 to the terminal accommodating portion 11, the locking lever 16 of the terminal accommodating portion 11 is positioned in the recess 25 of the wiring material base portion 12.

[0021] 4, terminal 40 has an electrical connection portion 41 connectable to a mating terminal and a leg portion 42 connectable to wiring material 50. Terminal 40 is made of a conductive metal material such as copper or a copper alloy. Terminal 40 has a terminal lance 44 formed on electrical connection portion 41 that protrudes outward.

[0022] The leg portion 42 extends rearward from the rear end of the electrical connection portion 41. The leg portion 42 has a crank portion 43 bent into a crank shape. The terminal 40 is accommodated from the rear side in the housing 10, which is configured by assembling the wiring material base portion 12 to the terminal accommodating portion 11.

[0023] Specifically, the terminal 40 is inserted into the terminal insertion hole 23 of the wiring material base portion 12 of the housing 10 from the electrical connection portion 41 side, and then inserted into the terminal accommodating chamber 13 of the terminal accommodating portion 11 through the terminal insertion hole 23. As a result, the electrical connection portion 41 of the terminal 40 is accommodated in the terminal accommodating chamber 13. In this state, the terminal lance 44 of the electrical connection portion 41 is engaged with the lance portion 13a of the terminal accommodating chamber 13, preventing it from coming out.

[0024] The terminal 40 has a leg 42 protruding from the rear end of the wiring material base 12. When the terminal 40 is attached to the housing 10, the crank portion 43 of the terminal 40 is disposed in the step 23a of the terminal insertion hole 23.

[0025] 2 and 4, the wiring material 50 is made of, for example, a flexible printed circuit board (FPC) and has flexibility. The wiring material 50 has a wiring section 52 to which a rigid plate body 55 is attached, and the wiring section 52 has a plurality of through holes 51 formed therein.

[0026] Furthermore, the wiring material 50 has positioning holes 53 near both ends of the wiring portion 52. The wiring portion 52 of this wiring material 50 is arranged on the rear surface of the wiring material base portion 12 of the housing 10. When the wiring portion 52 is arranged on the rear surface of the wiring material base portion 12 in this manner, the positioning protrusion 26 of the wiring material base portion 12 is fitted into the positioning hole 53 of the wiring portion 52. As a result, the wiring portion 52 of the wiring material 50 is positioned on the rear surface of the wiring material base portion 12 of the housing 10.

[0027] FIG. 5 is an enlarged view of a portion of FIG. 5, in wiring material 50 having wiring portion 52 disposed on the rear surface of wiring material base portion 12, leg portion 42 of terminal 40 is inserted into through hole 51 formed in wiring portion 52. Then, leg portion 42 of terminal 40 is connected by solder 70 to land portion 54 in which through hole 51 of wiring portion 52 is formed, thereby achieving electrical continuity.

[0028] 2, the cover 60 has a top plate 61, a rear plate 62, and a pair of side plates 63. The cover 60 is molded from synthetic resin and is, for example, the same color as the terminal accommodating portion 11 that constitutes the housing 10.

[0029] The rear panel 62 is formed integrally with the rear edge of the top panel 61 , and a pair of side panels 63 are formed integrally with the side edges of the top panel 61 and both ends of the rear panel 62 .

[0030] The top plate 61 has a recess 64 that is open on the front side. The side plate 63 has a locking claw 65 formed on its inner surface.

[0031] The cover 60 is attached from the rear side of the housing 10 to which the wiring material 50 is connected. The attached cover 60 covers the top, rear and both side surfaces of the wiring material base portion 12 of the housing 10.

[0032] When the cover 60 is attached to the housing 10, the locking claws 65 formed on the inner surface of the side plate 63 engage with the locking recesses 27 on both sides of the wiring material base portion 12. This keeps the cover 60 attached to the housing 10. When the cover 60 is attached to the housing 10, the locking lever 16 of the terminal accommodating portion 11 is positioned in the recess 64 formed in the top plate 61 of the cover 60.

[0033] Next, a case will be described in which the leg portion 42 of the terminal 40 accommodated in the housing 10 is soldered and connected to the wiring portion 52 of the wiring material 50 by irradiating it with laser light. FIG. 6 is an enlarged view of a part of FIG. 4 illustrating the soldering process using laser light.

[0034] 6 , when soldering the leg portion 42 of the terminal 40 to the wiring portion 52 of the wiring material 50, a laser beam L is irradiated onto the through-hole 51 through which the leg portion 42 is inserted and the periphery thereof. Then, while the laser beam L is being irradiated, a wire solder 71 is brought close to the land portion 54. The wire solder 71 is then melted by the heat of the laser beam L and adheres to the land portion 54 and the leg portion 42. Thereafter, when the irradiation of the laser beam L is stopped, the solder 70 adhered to the land portion 54 and the leg portion 42 hardens, thereby connecting the leg portion 42 to the land portion 54 of the wiring portion 52 by the solder 70.

[0035] As described above, when laser light L is irradiated to connect the leg portion 42 of the terminal 40 to the land portion 54, a portion of the irradiated laser light L is guided to the terminal insertion hole 23 through the through hole 51. The laser light L guided to the terminal insertion hole 23 is irradiated and blocked by the step portion 23a formed in the terminal insertion hole 23, and is not irradiated to the terminal accommodating portion 11 that constitutes the housing 10. This prevents the laser light L from being irradiated to the terminal accommodating portion 11, which could cause changes in physical properties such as a decrease in insulation.

[0036] Furthermore, the step portion 23a that blocks the irradiation of the laser light L onto the terminal accommodating portion 11 is formed on the wiring material base portion 12, which has a color with high reflectivity for the laser light L. In other words, the wiring material base portion 12 is made of a low-absorption color such as white that does not easily absorb the heat of the laser light L. Therefore, when the laser light L is irradiated onto the land portion 54 of the wiring material 50 to solder the leg portion 42 of the terminal 40 to the wiring material 50, even if the laser light L is irradiated onto the wiring material base portion 12, the laser light L can be reflected well. Therefore, changes in physical properties, such as a decrease in insulation, that occur when the laser light L is irradiated onto the wiring material base portion 12 are also suppressed.

[0037] As described above, according to the connector 100 of this embodiment, the housing 10 is divided into a terminal accommodating portion 11 having a terminal accommodating chamber 13 in which the terminal 40 is accommodated, and a wiring material base portion 12 that serves as a base for the wiring material 50 connected to the terminal 40, and the color of the wiring material base portion 12 is made to have a high reflectivity to the laser light L compared to the terminal accommodating portion 11. As a result, even if the laser light L is irradiated onto the wiring material base portion 12 when the terminal 40 is soldered to the wiring material 50 by irradiating it with the laser light L, the laser light L can be well reflected by the wiring material base portion 12. Therefore, changes in physical properties, such as a decrease in insulation, caused by irradiation with the laser light L can be suppressed.

[0038] In addition, a step portion 23a is provided in the wiring material base portion 12 to block the laser light L directed toward the terminal accommodating portion 11.By using the step portion 23a of the wiring material base portion 12 to block the laser light L directed toward the terminal accommodating portion 11, the influence of the laser light L on the terminal accommodating portion 11 can be reduced.

[0039] Furthermore, since the terminal accommodating portion 11 and the wiring material base portion 12 are structured to be engaged by a locking portion consisting of a locking claw 14 and a locking piece 24, the divided terminal accommodating portion 11 and wiring material base portion 12 can be easily assembled to each other by the locking portion to form the housing 10.

[0040] Moreover, since the cover 60 is provided to cover the wiring material base portion 12 of the housing 10, even if the wiring material base portion 12 is a different color from the terminal accommodating portion 11, the cover 60 can cover the wiring material base portion 12 to make it less noticeable. This allows the colors of the terminal accommodating portion 11 and the cover 60 to be freely set while suppressing the influence of the laser light L. This allows the colors of the terminal accommodating portion 11 and the cover 60 to be specified depending on the location and purpose of use, for example, for the wiring material base portion 12, which has a color that is less affected by the laser light L.

[0041] In addition, by making the wiring material base portion 12 a low-absorption color that is less likely to absorb the heat of the laser light L, the effects of the heat of the laser light L can be suppressed when the wiring material base portion 12 is irradiated with laser light L.

[0042] The present invention is not limited to the above-described embodiments, and can be appropriately modified, improved, etc. Furthermore, the material, shape, size, number, location, etc. of each component in the above-described embodiments are arbitrary and not limited as long as they can achieve the present invention.

[0043] Here, the features of the above-described embodiments of the connector according to the present invention will be briefly summarized and listed below in [1] to [5]. [1] A housing (10); a terminal (40) inserted into the housing (10) from the rear and accommodated therein; a wiring material (50) disposed at the rear of the housing (10) and connected to the terminal (40); A connector (100) comprising: The housing (10) is a terminal accommodating portion (11) having a terminal accommodating chamber (13) in which the terminal (40) is accommodated; a wiring material base portion (12) having a terminal insertion hole (23) that communicates with the terminal accommodating chamber (13) by being assembled to the rear portion of the terminal accommodating portion (11), The wiring material base portion (12) has a color that has a high reflectivity to laser light (L) compared to the terminal accommodating portion (11). connector.

[0044] According to the connector of the above configuration [1], the housing is divided into a terminal accommodating section having a terminal accommodating chamber for accommodating a terminal, and a wiring material base section that serves as a base for a wiring material connected to the terminal. The color of the wiring material base section is selected to have a high reflectivity for laser light compared to the terminal accommodating section. This allows the wiring material base section to reflect the laser light well when irradiating the wiring material base section with laser light to solder the terminal to the wiring material. Therefore, it is possible to suppress changes in physical properties, such as a decrease in insulation, that occur when irradiating the laser light.

[0045] [2] The wiring material base portion (12) has a step portion (23a) that blocks the laser light (L) directed toward the terminal accommodating portion (11). The connector according to [1] above.

[0046] According to the connector having the configuration [2] above, the step portion of the wiring material base portion blocks the laser light directed toward the terminal accommodating portion, thereby suppressing the influence of the laser light on the terminal accommodating portion.

[0047] [3] The terminal accommodating portion (11) and the wiring material base portion (12) are locked by a locking portion (locking claw 14, locking piece 24). The connector according to [1] or [2] above.

[0048] According to the connector having the configuration [3] above, the divided terminal accommodating portion and the wiring material base portion can be easily assembled together by the locking portion to form the housing.

[0049] [4] A cover (60) is provided to cover the wiring material base portion (12), A connector according to any one of [1] to [3] above.

[0050] According to the connector having the configuration [4] above, even if the wiring material base portion is a different color from the terminal accommodating portion, the cover can cover the wiring material base portion to make it less noticeable. This allows the colors of the terminal accommodating portion and the cover to be freely set while suppressing the effects of laser light. As a result, for example, the colors of the terminal accommodating portion and the cover can be specified depending on the location and purpose of use, while the wiring material base portion has a color that is less affected by laser light.

[0051] [5] The wiring material base portion (12) has a low absorption color that does not easily absorb the heat of the laser light (L), A connector according to any one of [1] to [4] above.

[0052] According to the connector having the configuration [5] above, when the laser light is irradiated onto the wiring material base portion, the influence of the heat of the laser light can be suppressed. [Explanation of symbols]

[0053] 10. Housing 11 Terminal housing 12 Cable mounting base 13 Terminal housing 13a Lance Section 14 Locking claw (locking part) 15 recess 16 Locking lever 17 Arm 18 Pressing part 19 Locking claw 23 Terminal insertion hole 23a Stepped section 24 Lock piece (lock part) 24a Lock hole 25 recess 27 Locking recess 40 terminals 41 Electrical Connections 42 Legs 43 Crank section 50 Routing material 51 through holes 52 Wiring section 53 holes 55 Plate 60 Cover 61 Top plate 62 Rear plate 63 Side plate 64 recess 65 Locking claw 100 Connectors L laser light

Claims

1. Housing and a terminal inserted into the housing from the rear and accommodated therein; a wiring material disposed at a rear portion of the housing and connected to the terminal; A connector comprising: The housing includes: a terminal accommodating portion having a terminal accommodating chamber in which the terminal is accommodated; a wiring material base portion having a terminal insertion hole that communicates with the terminal accommodating chamber by being assembled to a rear portion of the terminal accommodating portion, The wiring material base portion has a color that has a high reflectivity to laser light compared to the terminal accommodating portion, The wiring material base portion has a step portion on an inner wall of the terminal insertion hole that blocks the laser light directed toward the terminal accommodating portion. connector.

2. The terminal has an electrical connection portion accommodated in the terminal accommodating chamber and a leg portion accommodated in the terminal insertion hole and inserted into a through hole formed in the wiring material, the leg portion having a crank portion bent in a crank shape, the crank portion is made up of a front portion extending forward along a front-rear direction in which the terminal is inserted into the housing, a rear portion offset from the front portion in a cross direction crossing the front-rear direction and extending rearward along the front-rear direction, and an intersecting portion extending along the cross direction to connect the front portion and the rear portion, the crank portion of the terminal is disposed on the step portion of the terminal insertion hole so that the intersection portion and the step portion face each other in the front-rear direction. The connector according to claim 1 .

3. The terminal accommodating portion and the wiring material base portion are locked by a locking portion. The connector according to claim 1 or 2.

4. A cover for covering the wiring material base portion is provided. The connector according to any one of claims 1 to 3.

5. The wiring material base portion has a low absorption color that does not easily absorb the heat of the laser light. The connector according to any one of claims 1 to 4.

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