JP5910481B2 - Connector and connector inspection method - Google Patents

Description

  The present invention relates to a connector and a method for inspecting a connector, and more particularly, to a connector and a connector including a terminal protruding from a housing and soldered to a substrate and a fixing member having an extension extending along a protruding direction of the terminal. It relates to the inspection method.

  In order to meet the demand for miniaturization of electronic components, a connector that can be fixed to a board even when mounted in a small space has been proposed.

  For example, in the connector disclosed in Patent Document 1, a fixing bracket is installed on the outer wall portion of the connector housing, and further, the fixing strength between the connector and the substrate is increased by soldering the fixing bracket and the substrate. Yes. Further, in this connector, an extension portion extending to the tip of the terminal is installed along the direction in which the terminal protrudes from the outer wall surface of the housing. By installing the extension portion, even when the mating connector is inserted into or removed from the housing, the fixing between the connector and the board is reinforced and the fixing of the connector to the board is maintained.

JP 2007-012522 A

  However, in the connector disclosed in Patent Document 1, when an optical inspection machine is used to inspect the state of the soldered portion where the tip of the terminal and the substrate are soldered, the light incident and light reception by the optical inspection machine is extended. The part is blocked. Therefore, inspection using an optical inspection machine may not be possible.

  The present invention has been made to solve such problems, and provides a connector capable of inspecting the state of a soldered portion by an optical inspection machine while maintaining the fixing strength between the connector and the substrate. Objective.

  The connector according to the present invention includes a housing that is inserted into and removed from the mating connector on the front surface, a terminal that protrudes from the back surface of the housing and soldered to the substrate, and is attached to the side surface of the housing and fixed to the substrate. The fixing member includes an extending portion that extends along a direction in which the terminal protrudes, and the extending portion includes a transmitting portion that transmits light. It is what. With such a configuration, the state of the soldering portion can be inspected by the optical inspection machine while maintaining the fixing strength between the connector and the substrate.

  Here, a transparent member made of a transparent material may be installed in the transmission part. With such a configuration, the state of the soldered portion can be inspected by the optical inspection machine while maintaining the fixing strength between the connector and the substrate more reliably.

  In addition, a hole penetrating the fixing member may be formed in the transmission part. With such a configuration, it is possible to inspect the state of the soldering portion with an optical inspection machine while maintaining the fixing strength between the connector and the substrate using a fixing member having a simple structure.

  The extension is preferably transparent. With such a configuration, the state of the soldered portion can be more reliably inspected using an optical inspection machine.

  On the other hand, the connector inspection method according to the present invention is a connector inspection method for inspecting a state of a soldered portion in which the connector is attached to the substrate and the terminal and the substrate are soldered, and the connector is inspected. The state of the soldering part is inspected by irradiating the soldering part with light or receiving reflected light from the soldering part through the transmission part. Thereby, even if it is a connector which has the said extension part, the state of a soldering part can be test | inspected with an optical inspection machine.

On the other hand, when the side of the housing attached to the substrate is the lower side, and the side of the surface opposite to the substrate of the housing is the upper side,
There are a plurality of the terminals,
The plurality of terminals include
A plurality of lower row terminals protruding in rows from the back;
There are a plurality of upper row terminals protruding in rows from the back side above the lower side terminals,
The plurality of upper row terminals are soldered to the substrate in a row, so that the soldered portions form an upper row soldering portion row,
The plurality of lower row terminals are soldered between the back surface and the upper row soldering portion row,
The upper row terminal is
A protrusion protruding from the back surface;
A bent portion that bends toward the substrate;
The projecting portion and the bent portion may be connected, and the projecting portion and a constricted portion having a diameter smaller than that of the bent portion may be provided. Thereby, the state of the soldering portion can be inspected by the optical inspection machine while improving the mounting density of the terminals and maintaining the fixing strength between the connector and the substrate.

  According to the present invention, it is possible to provide a connector capable of inspecting the state of the soldered portion with an optical inspection machine while maintaining the fixing strength between the connector and the substrate.

It is a perspective view of the connector fixed to the board | substrate. (First embodiment) It is a front view of a fixing member. (First embodiment) It is a figure which shows the process of test | inspecting the state of the soldering part of a connector. (First embodiment) It is a front view of a fixing member. (Second Embodiment) It is a front view of a fixing member. (Third embodiment) It is a top view of the connector fixed to the board | substrate. (Fourth embodiment)

(First embodiment)
The connector according to the first embodiment of the present invention will be described below with reference to FIGS.

  FIG. 1 shows an embodiment of a connector fixed to a substrate. FIG. 2 shows the appearance of the fixing member 4. As shown in FIG. 1, the connector 1 is fixed to the substrate 10 via a fixing member 4. The connector 1 includes a housing 2, a terminal 3, and a fixing member 4.

  The housing 2 can be attached to and removed from the front side of the housing 2 with a mating connector (not shown). The housing 2 includes a fixing member holding portion 22 as a holding means for holding the fixing member 4 on the side surface 21. The fixing member holding part 22 has a groove into which a housing fitting part 43 of the fixing member 4 described later can be fitted.

  The terminal 3 is held on the back surface 23 of the housing 2 so as to protrude outward from the housing 2. When the connector 1 is fixed to the substrate 10, the terminal 3 is appropriately processed so that the tip of the terminal 3 reaches the position where the soldering portion 11 of the substrate 10 is formed.

  As shown in FIG. 2, the fixing member 4 is a plate-like body having a fixing member base 41 and an extension 42 extending from the fixing member base 41. Referring also to FIG. 1, the fixing member base 41 includes a housing fitting portion 43 that is fitted in the groove of the fixing member holding portion 22, and a first substrate fixing portion 44 that is fixed to the fixing groove 12 of the substrate 10 by soldering. And have. When the housing fitting portion 43 is fitted in the groove of the fixing member holding portion 22 and the fixing member 4 is held by the housing 2, the extension portion 42 is processed so as to extend to the tip of the terminal 3 along the protruding direction of the terminal 3. ing. The extension portion 42 includes a second substrate fixing portion 45 that is fixed to the fixing groove 13 of the substrate 10 by soldering, and a transmission portion 47. The transmission part 47 is formed by fitting a transparent plate made of a transparent material such as plastic or glass into the hole 46 penetrating the extension part 42. Thereby, the fixing member 4 can transmit light through the transmission part 47 while maintaining the mechanical strength necessary for the fixing member.

  The fixing member 4 is held by the housing 2 by fitting the housing fitting portion 43 into the groove of the fixing member holding portion 22. Further, the connector 1 is fixed to the substrate 10 by soldering the first substrate fixing portion 44 and the second substrate fixing portion 45 to the fixing groove 12 and the fixing groove 13 of the substrate 10, respectively. Here, the connector 1 is fixed to the substrate 10 via the fixing member 4 by soldering the first substrate fixing portion 44 and the second substrate fixing portion 45 to the fixing groove 12 and the fixing groove 13 of the substrate 10, respectively. . Further, the tip of the terminal 3 is soldered to the substrate 10 to form a soldered portion 11. Thereby, the fixing strength between the connector 1 and the board 10 is increased, and the connector 1 can maintain the fixing with the board 10 even when the mating connector is inserted into and removed from the housing 2 and repeatedly attached to and detached from the connector 1. it can.

  In addition, although the extension part 42 of the fixing member 4 was processed so that it might extend to the front-end | tip of the terminal 3 along the direction where the terminal 3 protrudes, it should just be processed so that it may extend along the direction where the terminal 3 protrudes.

(how to use)
FIG. 3 schematically shows a process of inspecting the state of the soldering portion 11 of the connector 1 using the optical inspection machine 50. As shown in FIG. 3, the optical inspection machine 50 includes a light source 51 that irradiates light such as illumination light or a laser toward the soldering unit 11, a light receiving unit 52 that receives light reflected from the soldering unit 11, An image conversion unit (not shown) that converts the light obtained from the light receiving unit 52 into an electrical signal to create image data, and a display unit (not shown) that can display an image obtained by the image conversion unit. Prepare. The light source 51 is disposed above the connector 1, and the light receiving unit 52 is disposed on the side of the connector 1 and along a virtual straight line A extending obliquely upward from the soldering unit 11. The angle formed by the virtual straight line A and the main surface of the substrate 10 is 45 degrees, for example.

  Light is irradiated from the light source 51 toward the soldering unit 11 by the optical inspection machine 50. Then, the light is reflected from the soldering part 11, passes through the transmission part 47, and is received by the light receiving part 52. Subsequently, image data is created by the image conversion unit based on the light reception signal output from the light receiving unit 52, and an image based on the image data is displayed on the display unit. That is, the state of the soldering part 11 can be inspected using the optical inspection machine 50. Even if the positions of the light source 51 and the light receiving unit 52 are exchanged, the light emitted from the light source 51 can be transmitted by the transmission unit 47, and the state of the soldering unit 11 can be inspected by the optical inspection machine 50. it can.

  As mentioned above, the connector concerning 1st Embodiment can test | inspect the state of a soldering part with an optical inspection machine, maintaining the fixed intensity | strength of a connector and a board | substrate.

(Second Embodiment)
Hereinafter, a connector according to a second embodiment of the present invention will be described with reference to FIG. The connector according to the second embodiment differs from the connector according to the first embodiment described above only in the fixing member, and the description of the other members is omitted because they are common. Moreover, description is simplified by attaching | subjecting the code | symbol corresponding to the location which is common with the fixing member 4 of 1st Embodiment.

  As shown in FIG. 4, the fixing member 140 used in the connector according to the second embodiment is different from the fixing member 4 only in that the transparent plate is omitted in the transmission part, and the fixing member is used for the other portions. 4 and in common. Although the fixing member 140 has a relatively simple structure without a transparent plate, the fixing member 140 can transmit light from the hole 146 in the transmission portion 147 and has mechanical strength necessary for the fixing member. That is, the connector according to the second embodiment is fixed to the substrate 10 via the fixing member 140 having a relatively simple structure, and the state of the soldering portion is maintained by the optical inspection machine while maintaining the fixing strength with the substrate 10. Can be inspected.

(Third embodiment)
Hereinafter, a connector according to a third embodiment of the present invention will be described with reference to FIG. The connector according to the third embodiment differs from the connector according to the first embodiment described above only in the fixing member, and the description of the other members is omitted because they are common. Moreover, description is simplified by attaching | subjecting the code | symbol corresponding to the location which is common with the fixing member 4 of 1st Embodiment.

  As shown in FIG. 5, the fixing member 240 used in the connector according to the third embodiment is a plate-like body made of a transparent material, for example, a material such as plastic or glass, as well as having a strength necessary for the fixing member. is there. The fixing member 240 includes a fixing member base 241 and an extension 242 extending from the fixing member base 241. The fixing member base 241 is different from the fixing member base 41 only in that it is made of a transparent material, and the other is common. The extension part 242 is different from the extension part 42 in that the extension part 242 is made of a transparent material, and the fitting of the transparent plate and the formation of the hole are omitted, and the other parts are the same as the fixing member 4. Since the extension part 242 is a plate-like body made of a transparent material, light can be transmitted over the entire surface. That is, the transmission part 247 in the extension part 242 extends over the entire surface of the extension part 242.

  The fixing member 240 has a mechanical strength necessary as a fixing member, and can transmit light through the transmission portion 247. That is, since the connector according to the third embodiment is fixed to the substrate 10 via the fixing member 240, the light from the optical inspection machine can be transmitted more reliably. That is, since the connector according to the third embodiment is fixed to the substrate 10 via the fixing member 240, the state of the soldered portion is more reliably inspected by the optical inspection machine while maintaining the fixing strength with the substrate 10. it can.

(Fourth embodiment)
Next, a connector according to a fourth embodiment of the present invention will be described. The connector according to the fourth embodiment is made to solve the problem in the connector in which a large number of terminals protruding from the outer wall surface of the housing are soldered to the substrate so as to be arranged in a plurality of rows along the outer wall surface. is there. In such a connector, in order to improve the mounting density of the terminal, the terminal soldered to the row relatively far from the outer wall surface is compared with the terminal soldered to the row relatively far from the outer wall surface. Project from the top of the outer wall. If an optical inspection machine is used to inspect the state of the soldered portion of the terminal soldered to a relatively close row from the outer wall surface of the housing, light incident and light reception by the optical inspection machine is relatively far from this outer wall surface. The terminals that are soldered to the row block. Therefore, the subject that the state of a soldering part cannot be test | inspected with an optical inspection machine arises.

  The connector according to the fourth embodiment will be described below with reference to FIG. The connector according to the fourth embodiment has different terminals as compared with the connector according to the first embodiment described above, and the description of the other members is omitted because they are common. Further, the portions common to the first embodiment are denoted by the corresponding reference numerals to simplify the description. FIG. 6 shows a top view and a side view of the connector according to the fourth embodiment.

  As shown in FIG. 6, the connector 301 includes a plurality of terminals 330. Here, the side of the housing 302 attached to the substrate 310 is defined as the lower side, and the side of the surface opposite to the substrate 310 of the housing 302 is defined as the upper side. The plurality of terminals 330 includes a plurality of lower row terminals 331 protruding in rows from the back surface 323, and a plurality of upper row terminals 332 protruding above the lower row terminals 331 from the back surface 323 in an upper row. Including.

  The plurality of upper row terminals 332 are soldered to the substrate 310 in rows. This soldering portion forms the upper row soldering portion row 3110. The lower row terminal 331 is soldered between the back surface 323 and the upper row soldering portion 311 to form a lower row soldering portion 3111. Accordingly, the number of terminals per area soldered to the substrate 310, that is, the mounting density of the terminals can be increased.

  Each of the upper row terminals 332 includes a protruding portion 333 protruding from the back surface 323, a bent portion 334 bent toward the substrate 310, and a constricted portion 335 connecting the protruding portion 333 and the bent portion 334. The constricted portion 335 has a smaller diameter than the protruding portion 333 and the bent portion 334. The constricted portion 335 causes light received upward from the connector 301 and incident light from above the connector 301 to reach the soldered portion 3111 of the lower terminal 331, and the state of the soldered portion is checked by an optical inspection machine. Can be inspected. That is, the state of the soldered portion can be inspected by the optical inspection machine while increasing the mounting density of the terminals and maintaining the fixing strength between the connector and the substrate.

  In addition, this invention is not limited to the said embodiment, The deformation | transformation in the range which can achieve the objective of this invention, improvement, etc. are included in this invention.

1, 301 connector, 2, 302 housing, 3, 330 terminal,
4, 140, 240 fixing member, 10, 310 substrate, 23, 323 back surface,
42, 142, 242 Extension part, 47, 147, 247 Transmission part

Claims (6)

A housing to be inserted into and removed from the mating connector at the front,
A terminal protruding from the back of the housing and soldered to the substrate;
A connector having a fixing member attached to a side surface of the housing and fixed to the substrate,
The fixing member has an extension extending along the protruding direction of the terminal,
The extension includes a transmission part,
The substrate has a soldering portion to which the tip of the terminal is soldered,
The transmissive part transmits light that is irradiated from above the soldering part toward the soldering part and reflected from the soldering part.   The connector according to claim 1, wherein a transparent member made of a transparent material is installed in the transmission portion.   The connector according to claim 1, wherein a hole penetrating the fixing member is formed in the transmission part.   The connector according to claim 1, wherein the extension is transparent. A connector inspection method for inspecting a state of a soldered portion in which the connector according to claim 1 is attached to the substrate and the terminal and the substrate are soldered,
An inspection method for inspecting a state of the soldering part by irradiating the soldering part with light through the transmission part or receiving reflected light from the soldering part through the transmission part. When the side of the housing attached to the substrate is the lower side, and the side of the surface of the housing opposite to the substrate is the upper side,
There are a plurality of the terminals,
The plurality of terminals include
A plurality of lower row terminals protruding in rows from the back;
There are a plurality of upper row terminals that protrude from the back surface in rows above the lower row terminals,
Wherein the plurality of upper row terminals, the substrate in a state in which a row is connected via a first soldering portion, the first soldering portion, a upper row soldering portion row,
The plurality of lower row terminals are connected via a second soldering portion between the back surface and the upper row soldering portion row ,
The upper row terminal is
A protrusion protruding from the back surface;
A bent portion that bends toward the substrate;
5. The connector according to claim 1, further comprising a narrow portion having a diameter smaller than that of the protruding portion and the bent portion, connecting the protruding portion and the bent portion.

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