Print circuit board

Abstract

To provide a print circuit board capable of preventing a connector from being mounted at an angle when the connector is surface-mounted such that a part of the connector protrudes from an edge of a product board.SOLUTION: A protrusion 504 protruding from an edge 200a of an external I / F board 200 is formed on a print circuit board 700. When mounting a connector 203 on the edge 200a of the external I / F board 200, legs 513 of the connector 203 are placed on the protrusion 504. In this state, the connector 203 is surface-mounted on the external I / F board 200 by being soldered. By forming the protrusion 504 on which the legs 513 are placed on the external I / F board 200, the connector 203 is appropriately mounted on the external I / F board 200 in a stable state with reduced tilt with respect to the external I / F board 200.SELECTED DRAWING: Figure 7

Description

[Technical field]

[0001] The present invention relates to a printed circuit board in which a connector, which is an electronic component, is mounted on an edge of the board. [Background technology]

[0002] Conventionally, image forming devices such as copiers and printers are provided with various boards (called product boards to distinguish them from one another), such as a transport board that controls the transport of recording materials and an image control board that controls image formation on the transported recording materials. Electronic components such as capacitors, resistors, transistors, integrated circuits, relays, and connectors are mounted on the product boards. Printed circuit boards used to mount electronic components include, for example, product boards on which electronic components are mounted and discarded boards on which electronic components are not mounted, and the discarded boards are separated from the product boards and discarded after the electronic components are mounted.

[0003] Some connectors are used to enable transmission and reception of various signals, data, and the like between a product board and an external device through a cable connected from the outside. In order to make it easier to connect the cable from the outside, such connectors have a connector portion (called a shell, for example) to which the cable is connected exposed to the outside when the product board is mounted on the image forming apparatus. Therefore, the connector is surface-mounted on the edge of the product board so that the connector portion protrudes from the edge of the product board.

[0004] Conventionally, in order to regulate the misalignment and tilt of a connector when the connector is surface mounted, a misalignment prevention protrusion is provided in a relief hole formed between a product board and a throwaway board (Patent Document 1). The misalignment prevention protrusion abuts against the outer edge of the connector part to regulate the up-down and left-right vibration of the connector part within a certain range, thereby regulating the misalignment and tilt of the connector. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2015-216043 A Summary of the Invention [Problem to be solved by the invention]

[0006] However, depending on the type of connector, the connector portion may not fit into the escape hole, and the misalignment prevention protrusion may not come into contact with the outer edge of the connector portion unless the connector is tilted, which may result in the connector being surface-mounted on the printed circuit board in an tilted state.

[0007] In view of the above-mentioned problems, the present invention aims to provide a printed circuit board that can prevent a connector from being mounted at an angle when the connector is surface-mounted so that part of the connector protrudes from an edge of a product board. [Means for solving the problem]

[0008] A printed circuit board according to one embodiment of the present invention has a connector mounted on the printed circuit board, the connector having: a connector main body; a terminal protruding in the first direction from a first end face on a first direction side of the connector main body to connect with a mating connector; a mating portion located inside the outline of the connector main body when viewed from the first direction and covering the periphery of the terminal to mating with the mating connector; a first protrusion protruding in the second direction from a second end face on a second direction side of the connector main body perpendicular to the first direction; and a second protrusion provided on the second end face closer to the first end face than the first protrusion and protruding in the second direction, the printed circuit board comprising: a board main body having an insertion hole into which the first protrusion is inserted, the board main body having the connector mounted such that the mating portion protrudes from an edge of the board main body when the first protrusion is inserted into the insertion hole; and a protrusion provided to protrude from the edge of the board main body and against which the second protrusion abuts when the connector is mounted on the board main body.

[0009] A printed circuit board according to an embodiment of the present invention is a printed circuit board on which a connector is mounted, the printed circuit board having: a connector main body; a terminal protruding in a first direction from a first end face on a first direction side of the connector main body to connect with a mating connector; a fitting portion located inside an outline of the connector main body when viewed from the first direction and covering a periphery of the terminal to fit with the mating connector; a first protrusion protruding in the second direction from a second end face on a second direction side of the connector main body perpendicular to the first direction; and a second protrusion provided on the second end face closer to the first end face than the first protrusion and protruding in the second direction. the connector is mounted on the board body portion so that the fitting portion protrudes from a first edge of the board body portion when the first protrusion is inserted into the insertion hole; a sacrificial board portion which is connected to the board body portion so as to have a gap between the first edge of the board body portion and the board body portion, and which is separated after the connector is mounted on the board body portion; and a protrusion which is provided so as to protrude into the gap from a second edge of the sacrificial board portion, and which abuts against the second protrusion when the connector is mounted on the board body portion. Effect of the Invention

[0010] According to the present invention, for a printed circuit board on which a connector is surface-mounted so that part of the connector protrudes from an edge of the product board, it is possible to prevent the connector from being mounted at an angle with a simple configuration. [Brief description of the drawings]

[0011] [Figure 1] 1A is a perspective view showing an image forming apparatus equipped with a product board manufactured using the printed circuit board of the present embodiment, and FIG. 1B is a perspective view showing a state in which an external print server and a rear cover have been removed. [Diagram 2] FIG. 2 is a block diagram showing a control configuration of the image forming apparatus and the external print server. [Diagram 3] Top view showing the external I / F board. [Figure 4](a) Front view, (b) top view, and (c) side view showing the connector. [Diagram 5] FIG. 13 is a perspective view showing an external I / F board with a mounting sheet metal member attached thereto. [Figure 6] FIG. 2 is a top view showing the printed circuit board according to the first embodiment. [Figure 7] 3A, 3B, and 3C are schematic front, top, and side views showing a connector mounted on a printed circuit board according to the first embodiment. [Figure 8] FIG. 11 is a top view showing a printed circuit board according to a second embodiment. [Figure 9] 10A, 10B, and 10C are schematic front, top, and side views showing a connector mounted on a printed circuit board according to a second embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] [First embodiment] <Image forming device> An image forming apparatus equipped with a product board manufactured using the printed circuit board of this embodiment will be described with reference to Figs. 1(a) to 2. The image forming apparatus 10 is an apparatus capable of forming an image, such as a copier, printer, facsimile, or multifunction machine. Inside a housing 20 of the image forming apparatus 10, various devices constituting the image forming apparatus 10 are housed, such as an image forming unit that forms a toner image on a recording material, and a fixing unit that heats the toner image formed on the recording material and fixes it to the recording material. Note that since the various devices related to image formation are not essential to the present invention, illustrations and descriptions of them will be omitted in this specification.

[0013] As shown in Fig. 1(a), an external print server 30 is externally attached to a rear cover 11 on the rear side of the image forming apparatus 10. Then, as shown in Fig. 1(b), a controller board 100 and an external interface (I / F) board 200 are arranged side by side on the back side of the rear cover 11 inside the housing 20 of the image forming apparatus 10. The rear cover 11 is detachably provided on the housing 20 so as to cover and conceal the controller board 100 and the external I / F board 200.

[0014] The external print server 30 is an external device that is added later to expand the functions of the image forming apparatus 10. By connecting the external print server 30, the image forming apparatus 10 can perform image formation processing based on image data described in a print language such as PDL (Page Description Language) that is not supported by the image forming apparatus 10 alone. The external print server 30 is connected to the image forming apparatus 10 so as to be able to transmit and receive various data and control signals to and from the image forming apparatus 10.

[0015] In this embodiment, the external print server 30 is connected to the controller board 100 using a LAN cable 308, and is connected to the external I / F board 200 using a cable 307. The controller board 100 is provided with a LAN connector 105 for connecting the LAN cable 308. The external I / F board 200 is provided with a connector 203, which is an external interface connector for connecting devices via a cable 307. For example, the connector 203 is a D-sub connector, and the cable 307 is a D-sub cable. The LAN connector 105 and the connector 203 are surface-mounted on the controller board 100 and the external I / F board 200 so that a portion of them is exposed to the outside of the housing 20 when the rear cover 11 is attached.

[0016] 2, the image forming apparatus 10 includes a controller board 100, an operation unit 106, a printer unit 107, a scanner unit 108, a HDD 109, and an external I / F board 200. A CPU 101, a RAM 102, an image processing unit 103, and a network interface (I / F) 104 are mounted on the controller board 100. The CPU (Central Processing Unit) 101 is a main control unit that controls the entire image forming apparatus. The RAM (Random Access Memory) 102 is a storage unit that stores programs executed by the CPU 101 and also functions as a temporary work area for data.

[0017] The image processing unit 103 is a circuit unit that performs a conversion process for converting image data transmitted from the external print server 30 via the external I / F board 200 into a signal of a format suitable for image formation by the printer unit 107, and processes such as noise removal, color space conversion, rotation, and compression of a scanned image read by the scanner unit 108. The network I / F 104 is a circuit unit that transmits and receives various data and control signals to and from the external print server 30 connected via a LAN cable 308.

[0018] The signal bus 110 is a system bus that connects the above-mentioned CPU 101, RAM 102, image processing unit 103, network I / F 104, as well as the operation unit 106, printer unit 107, scanner unit 108, HDD 109, and external I / F board 200.

[0019] The operation unit 106 is, for example, a touch panel, and transmits command signals and data input by a user to the CPU 101. The printer unit 107 forms an image on a recording material based on image data. The scanner unit 108 optically reads an image on an original and converts it into an electrical signal to generate a scanned image. The HDD (Hard Disk Drive) 109 is a large-capacity storage device that stores programs executed by the CPU 101 and is used as a spool area for print jobs, scan jobs, and the like. The HDD 109 is also used as an area for storing and reusing scanned images.

[0020] The external I / F board 200 is a board for relaying signals and data between the external print server 30 and the controller board 100. A signal conversion unit 202 and a connector 203 are mounted on the external I / F board 200. The signal conversion unit 202 is configured with an FPGA (Field Programmable Gate Array), and converts image data described in a print language such as PDL received from the external print server 30 into image data in a format that can be processed by the image processing unit 103 of the image forming apparatus 10, and transmits the image data to the controller board 100. The signal conversion unit 202 receives image data from the external print server 30 via a cable 307 connected to the connector 203.

[0021] In addition to image data, a clock signal for synchronizing the timing of data transfer, a ready signal for notifying the external print server 30 that initialization of the controller board 100 is complete and printing is possible, and a ready signal for notifying the controller board 100 that initialization of the external print server 30 is complete and communication is possible are transmitted and received between the external I / F board 200 and the external print server 30.

[0022] The external print server 30 includes a CPU 301, a RAM 302, an image processing unit 303, a network I / F 304, a HDD 305, and a connection unit 306. The CPU 301 is a control unit that controls the entire external print server 30. The RAM 302 is a storage unit that stores programs executed by the CPU 301 and also functions as a temporary work area for data.

[0023] The image processing unit 303 generates image data described in a print language such as PDL. The HDD 305 is a large-capacity storage unit for temporarily storing, for example, system software, image data generated by the image processing unit 303, software counter values, print jobs, and the like. The network I / F 304 is a circuit unit that transmits and receives various data and control signals to and from the controller board 100 connected via a LAN cable 308. The external print server 30 transmits image data to the external I / F board 200 via a cable 307 connected to a connection unit 306. The signal bus 310 is a system bus that connects the CPU 301, RAM 302, image processing unit 303, network I / F 304, HDD 305, and connection unit 306.

[0024] <External I / F board> An external I / F board 200, which is an example of a product board in this embodiment, will be described using Figs. 3 to 5 with reference to Figs. 1(b) and 2. Fig. 3 shows the external I / F board 200 viewed from the mounting surface on which electronic components are mounted. Figs. 4(a) to 4(c) show an example of a connector 203. Fig. 5 shows the external I / F board 200 viewed from the non-mounting surface on which no electronic components are mounted. However, in Fig. 5, a mounting sheet metal member 300, which will be described later, is attached to the external I / F board 200.

[0025] 3, electronic components such as the above-mentioned signal conversion units 202 (FPGA), connector 203, power supply control IC, ROM (Read Only Memory) storing programs for operating the signal conversion unit 202, and RAM for temporarily storing image data received from the external print server 30 are mounted on the mounting surface of the external I / F board 200 as the board main body. The connector 203 is an electronic component mounted to enable transmission and reception of various signals, data, and the like between the external I / F board 200 and the external print server 30 via a cable 307 (see FIG. 1(b)). In the case of this embodiment, the connector 203 is a horizontal connection type connector in which the cable 307 is connected horizontally to the surface of the external I / F board 200.

[0026] <Connector> 4(a) to 4(c), the connector 203 includes a fitting portion 511 that fits with the cable 307 (more specifically, a mating connector provided at the tip of the cable 307), and a connector body portion 512 having a terminal 515 for electrically connecting with the fitted cable 307. The connector body portion 512 is formed of an insulating material such as plastic resin.

[0027] The terminal 515 is provided to protrude in a first direction (arrow X direction) from a first end face 512a on the first direction side of the connector main body 512, and is electrically connected to the cable 307 by connecting to a mating connector 307a (see FIG. 1(b)) of the cable 307. The fitting portion 511 is a shell for covering the periphery of the terminal 515 and fitting to the mating connector 307a of the cable 307. In the case of this embodiment, the fitting portion 511 is formed in a rectangular shape and is located inside the outline of the connector main body 512 when viewed from the first direction (X direction). The terminal 515 is electrically connected to a signal line 520 arranged to pass through the connector main body 512, and the signal line 520 is soldered to the external I / F board 200 when the connector 203 is mounted.

[0028] Two positioning bosses 514 are provided at positions spaced apart in the longitudinal direction on a second end face 512b of the connector main body 512 on a second direction side perpendicular to the first direction so as to protrude in a second direction (direction of arrow Y). The positioning boss 514 as a first protrusion is a protrusion for positioning the connector 203 at a predetermined position on the external I / F board 200. Meanwhile, the external I / F board 200 is formed with a positioning hole 503 (see FIG. 6) as an insertion hole into which the positioning boss 514 is inserted. By inserting the positioning boss 514 into the positioning hole 503, the connector 203 is positioned at a predetermined position.

[0029] Further, two legs 513 are provided on the second end surface 512b of the connector main body 512, on the first end surface 512a side (first end surface side) of the positioning boss 514 and at both ends in the longitudinal direction so as to protrude in the second direction. As shown in FIG. 4(c), the leg 513 as the second protrusion has a length of "2.0 mm" in the first direction (arrow X direction), and the length from the end surface of the leg 513 on the fitting portion 511 side to the center of the positioning boss 514 is "4.75 mm". In this embodiment, the end surface of the leg 513 on the fitting portion 511 side constitutes a part of the first end surface 512a of the connector main body 512.

[0030] 3, the connector 203 is surface-mounted on the external I / F board 200 so that the fitting portion 511 protrudes from the edge 200a of the external I / F board 200. This is to facilitate connection of a cable 307 to the connector 203 from the outside in a state in which the external I / F board 200 is attached to the housing 20 of the image forming apparatus 10. Also, the fitting portion 511 protrudes from the edge 200a of the external I / F board 200 in order to facilitate attachment of a mounting sheet metal member 300, which will be described later.

[0031] 5, in a state where the connector 203 is mounted on the external I / F board 200, a mounting sheet metal member 300 is attached to the external I / F board 200 in an assembly process. The mounting sheet metal member 300 is for mounting the external I / F board 200 to the housing 20 (see FIG. 1(a)) of the image forming apparatus 10, and in this embodiment, the mounting sheet metal member 300 is attached to the connector 203. Therefore, as shown in FIG. 4(a), screw holes 516 for attaching the mounting sheet metal member 300 with screws are formed in a first end surface 512a of the connector main body 512 at positions sandwiching the fitting portion 511.

[0032] 5, a through hole 301 is formed in the mounting sheet metal member 300. The mounting sheet metal member 300 is attached to the connector 203 with a screw in a state where the fitting portion 511 is inserted into the through hole 301. In this manner, when the external I / F board 200 is attached to the housing 20 via the mounting sheet metal member 300, the fitting portion 511 is exposed to the outside.

[0033] <Printed circuit board> Next, the printed circuit board of the first embodiment will be described with reference to Fig. 6 to Fig. 7(c). As shown in Fig. 6, the printed circuit board 700 of this embodiment has an external I / F board 200 on which electronic components are mounted, and a throw-away board 501 on which no electronic components are mounted. The throw-away board 501 as a throw-away board portion is a portion that is placed on a conveyor rail such as a belt conveyor when the board is processed by a solder printer or a mounter device or is inserted into a reflow furnace in the mounting process, and is required for placing electronic components on the edge of the external I / F board 200 as well.

[0034] In this embodiment, the throw-away board 501 is connected to the external I / F board 200 by a plurality of connecting parts 502 so that there is a gap between the throw-away board 501 and the edge 200a of the external I / F board 200 that is large enough to fit a jig such as a router (for example, 2.0 mm). After electronic components are mounted on the external I / F board 200, the throw-away board 501 is cut off from the external I / F board 200 using a jig such as a router and discarded.

[0035] In the external I / F board 200, a positioning hole 503 for the connector 203 is formed at a location where the connector 203 is mounted. In this embodiment, a protrusion 504 is formed at a location where the connector 203 of the external I / F board 200 is mounted. The protrusion 504 is formed to protrude from the edge 200a of the external I / F board 200 toward the sacrificial board 501 so as to narrow the gap between the edge 200a of the external I / F board 200 and the sacrificial board 501. In the first direction (arrow X direction), if the protrusion amount of the protrusion 504 from the edge 200a of the external I / F board 200 is, for example, "0.4 mm", the size of the gap from the tip of the protrusion 504 to the sacrificial board 501 is "1.6 mm (2.0-0.4)".

[0036] 7(a), the connector 203 is positioned at a predetermined position by inserting the positioning boss 514 into the positioning hole 503 of the external I / F board 200. At this time, the two legs 513 of the connector 203 abut against the protrusion 504 of the external I / F board 200.

[0037] In the case where the area of ​​the leg portions 513 of the connector 203 is formed small, when the connector 203 is mounted on the edge 200a of the external I / F board 200, the center of gravity of the connector 203 is located outside the external I / F board 200, and the leg portions 513 enter into a gap, making the connector 203 prone to tilting. Therefore, as in this embodiment, by forming protrusions 504 on which the leg portions 513 are placed on the external I / F board 200, the connector 203 is supported without tilting relative to the external I / F board 200, and the fitting portion 511 faces horizontally relative to the surface of the external I / F board 200, as shown in Figures 7(b) and 7(c).

[0038] For example, by forming the protruding portion 504 with a protruding amount of "0.4 mm" on the external I / F board 200, the distance from the end face (here, the first end face 512a) of the leg portion 513 on the fitting portion 511 side of the connector 203 to the tip of the protruding portion 504 becomes "0.55 mm" as shown in Fig. 7(c). In other words, the protruding portion 504 is formed such that, in a state in which the connector 203 is mounted on the external I / F board 200, the first end face 512a of the connector 203 protrudes further toward the opposite side to the external I / F board 200 than the protruding portion 504.

[0039] In this embodiment, the ratio of the contacting portion to the non-contacting portion of leg 513, which has a length of 2.0 mm in the first direction (arrow X direction), is 1.45 mm:0.55 mm, and approximately 70% of leg 513 is in contact, so that connector 203 is mounted on external I / F board 200 in a stably state.

[0040] As described above, after the throw-away board 501 is cut off, the mounting sheet metal member 300 is attached to the external I / F board 200 (see FIG. 5) to mount the board on the housing 20 (see FIG. 1(a)). Therefore, when mounting the connector 203, it is preferable to make a part of the connector body 512 protrude from the edge 200a of the external I / F board 200, taking into account the thickness of the mounting sheet metal member 300. However, if the amount of protrusion of the connector body 512 from the external I / F board 200, specifically the distance from the first end surface 512a of the connector 203 to the tip of the protruding portion 504, is too large, the non-contact portion of the leg 513 becomes large, and the connector 203 becomes easily tilted. Taking this into consideration, in this embodiment, the distance from the first end surface 512a of the connector 203 to the tip of the protruding portion 504 is set to "0.55 mm" as shown in FIG. 7(c).

[0041] As described above, in this embodiment, the printed circuit board 700 is formed with the protruding portion 504 protruding from the edge 200a of the external I / F board 200. When mounting the connector 203 on the edge 200a of the external I / F board 200, the connector 203 is surface-mounted by being soldered to the external I / F board 200 with the legs 513 of the connector 203 placed on the protruding portion 504. In this manner, by forming the protruding portion 504 on which the legs 513 are placed on the external I / F board 200, the connector 203 is appropriately mounted on the external I / F board 200 in a stable state with the inclination of the connector 203 with respect to the external I / F board 200 suppressed. This makes it possible to prevent mounting defects caused by the connector 203 tilting, even when a portion of the connector 203 is mounted protruding from the edge 200a of the external I / F board 200 in order to attach the mounting sheet metal member 300 to the fitting portion 511, or when the connector 203 cannot be positioned inside the external I / F board 200 due to constraints on board size or component placement.

[0042] [Second embodiment] Next, a printed circuit board 700A according to a second embodiment will be described with reference to Fig. 8 to Fig. 9(c). Note that the same components of the printed circuit board 700A as those of the printed circuit board 700 according to the first embodiment described above are denoted by the same reference numerals, and the description thereof will be simplified or omitted.

[0043] In comparison with the printed circuit board 700 of the first embodiment described above (see FIG. 6), in the case of the printed circuit board 700A of the second embodiment, as shown in FIG. 8, a recess 801 is formed in the external I / F board 200 at a position where the connector 203 is mounted on the edge 200a (first edge). The recess 801 is formed so that the first end surface 512a of the connector 203 protrudes toward the sacrificial board 501 side (sacrificial board portion side) beyond the first edge 200a of the external I / F board 200 when the connector 203 is mounted on the external I / F board 200 (see FIG. 9(b)). Note that the recess 801 does not have to be formed, but forming the recess 801 is preferable because the connector 203 does not need to protrude more than necessary from the edge 200a of the external I / F board 200 compared to the case where the recess 801 is not formed.

[0044] On the other hand, a protrusion 802 is formed on the sacrificial substrate 501 at a position facing the recess 801. The protrusion 802 is provided so as to protrude from an edge 501a (second edge) of the sacrificial substrate 501 toward the recess 801 into the gap so as to narrow the gap with the edge 200a of the external I / F substrate 200.

[0045] In this embodiment, the amount of protrusion of the protruding portion 802 from the edge 501a of the throw-away substrate 501 is, for example, "2.55 mm", and the amount of recess of the recess 801 from the edge 200a of the external I / F substrate 200 is, for example, "1.55 mm". The protruding portion 802 is formed so that the tip side protrudes beyond the edge 200a of the external I / F substrate 200 and enters the recess 801. The tip of the protruding portion 802 enters the recess 801 by "0.55 mm" beyond the edge 200a of the external I / F substrate 200 so that the gap between the recess 801 with the amount of recess of "1.55 mm" and the recess 801 is "1.0 mm" which is narrower than the gap (2.0 mm) between the edge 501a of the throw-away substrate 501 and the edge 200a of the external I / F substrate 200. This is to enable the connector 203 to be mounted on the external I / F substrate 200 in a stable state even when the recess 801 is formed.

[0046] 9(a), the connector 203 is positioned at a predetermined position by inserting the positioning boss 514 into the positioning hole 503 of the external I / F board 200. At this time, the two legs 513 of the connector 203 abut against the protrusions 802 of the sacrificial board 501.

[0047] In the case where recess 801 is formed in external I / F board 200, if protrusion 802 is not formed in sacrificial board 501, legs 513 will easily get into the gap and tilt connector 203 when connector 203 is mounted on edge 200a of external I / F board 200. Therefore, as in this embodiment, protrusion 802 on which legs 513 are placed is formed in sacrificial board 501, so that connector 203 is supported without tilting relative to external I / F board 200 and fitting portion 511 faces horizontally relative to the surface of external I / F board 200, as shown in Figures 9(b) and 9(c).

[0048] 9C, a distance from an end face (first end face 512a in this case) of leg 513 on the side of fitting portion 511 of connector 203 to the tip of protrusion 802 is "1.5 mm." That is, a ratio of abutting portions to non-abutting portions in leg 513 having a length of "2.0 mm" in the first direction (arrow X direction) is "1.5 mm:0.5 mm," and about 75% of leg 513 is in abutting state, so that connector 203 is mounted on external I / F board 200 in a stable state.

[0049] As described above, in this embodiment, the protruding portion 802 protruding from the edge 501a of the throw-away board 501 is formed in the printed circuit board 700A. When the connector 203 is mounted on the edge 200a of the external I / F board 200, the connector 203 is surface-mounted by soldering to the external I / F board 200 with the legs 513 of the connector 203 placed on the protruding portion 802. Thereafter, the throw-away board 501 on which the protruding portion 802 is formed is separated from the external I / F board 200, but the connector 203 does not tilt because it has been properly mounted on the external I / F board 200 in a stable state with tilting suppressed with respect to the external I / F board 200. In this way, the protruding portion 802 on which the legs 513 are placed is formed on the throw-away board 501, so that the connector 203 is properly mounted on the external I / F board 200 in a stable state with tilting suppressed with respect to the external I / F board 200. [Explanation of symbols]

[0050] 200...board main body (external I / F board), 200a...first edge (edge), 203...connector, 307a...mating connector, 501...wasted board portion (wasted board), 501a...second edge (edge), 503...insertion hole (positioning hole), 504...projection, 511...fitting portion, 512...connector main body, 512a...first end face, 512b...second end face, 513...second protrusion (leg), 514...first protrusion (positioning boss), 515...terminal, 700 (700A)...printed board, 801...recess

Claims

1. A printed circuit board comprising a board body and a connector mounted on the board body, The connector comprises: a connector main body; a terminal protruding in the first direction from a first end face of the connector body on the first direction side to be connected to a mating connector; a mating portion that is located inside the outline of the connector body when viewed from the first direction side along the first direction, covers the periphery of the terminal, and is mated with the mating connector; a first protrusion protruding in the second direction from a second end surface of the connector main body on a second direction side perpendicular to the first direction; a second protrusion provided on the second end surface closer to the first end surface than the first protrusion and protruding in the second direction, an insertion hole into which the first protrusion is inserted is formed in the substrate body; the connector is mounted on the board body portion such that the fitting portion of the connector protrudes from an edge of the board body portion when the first protrusion of the connector is inserted into the insertion hole of the board body portion; the board main body portion has a protruding portion that protrudes in the first direction from an edge of the board main body portion on the first direction side, and that abuts against the second protrusion when the connector is mounted on the board main body portion; A printed circuit board characterized by:

2. the protrusion is formed such that, when the connector is mounted on the board body, the first end surface of the connector protrudes further toward the opposite side of the board body than the protrusion.

2. The printed circuit board according to claim 1.

3. a sacrificial board portion connected to the board body portion so as to have a gap between the board body portion and the edge of the board body portion, and which is cut off after the connector is mounted on the board body portion; The protrusion is located within the gap.

2. The printed circuit board according to claim 1.

4. A printed circuit board comprising a board body and a connector mounted on the board body, The connector comprises: a connector main body; a terminal protruding in the first direction from a first end face of the connector body on the first direction side to be connected to a mating connector; a mating portion that is located inside the outline of the connector body when viewed from the first direction side along the first direction, covers the periphery of the terminal, and is mated with the mating connector; a first protrusion protruding in the second direction from a second end surface of the connector main body on a second direction side perpendicular to the first direction; a second protrusion provided on the second end surface closer to the first end surface than the first protrusion and protruding in the second direction, an insertion hole into which the first protrusion is inserted is formed in the substrate body; the connector is mounted on the board body portion such that, with the first protrusion of the connector inserted into the insertion hole of the board body portion, the fitting portion of the connector protrudes from a first edge of the board body portion; The substrate main body portion is a throwaway board portion connected to the board body portion so as to have a gap between the board body portion and the first edge, and which is separated after the connector is mounted on the board body portion; a protruding portion provided so as to protrude into the gap from a second edge of the sacrificial board portion, the protruding portion abutting against the second protrusion when the connector is mounted on the board main body; A printed circuit board characterized by:

5. a recess formed in the first edge of the board body at a position where the connector is mounted; the recess is formed such that, when the connector is mounted on the board body, the first end surface of the connector protrudes toward the sacrificial board portion beyond the first edge of the board body.

5. The printed circuit board according to claim 4.

6. the protruding portion is formed to protrude beyond the first edge of the substrate body portion and to enter the recessed portion.

6. The printed circuit board according to claim 5.

Images