JP4272495B2 - Circuit board storage structure and electrical junction box - Google Patents

Description

  The present invention relates to a circuit board housing structure and an electric junction box in an electronic circuit board connected to an automobile wire harness or the like.

  FIG. 6 shows an embodiment of a conventional printed wiring board housing case (see, for example, Patent Document 1).

The accommodation case of the printed wiring board is composed of a combination of a case body 501, that is, a box body 501, and a lid 502, that is, a cover 502. One end surface of the box body 501 is open. In addition, guide grooves 508 are formed in the surfaces of both side walls 507 so that the printed wiring board 504, that is, both side walls of the electronic circuit board 504, can be slidably inserted. A slit 510 facing the connector 506 of the electronic circuit board 504 is formed in the upper wall 509 of the box body 501 so as to open to the open end surface 503. Further, both side walls 511 directed inward of the case are formed on both sides of the slit 510. Opposite ridges 512 are formed on the lower edges of the side walls 511.
Japanese Utility Model Publication No. 61-171295 (1st page, Fig. 1-3)

As another conventional device, there is also an electronic control device for a vehicle in which interference due to a noise signal does not occur between an internal circuit and an external circuit via a connector attached to a shield case. Yes (see, for example, Patent Document 2).
JP 2001-223489 A (page 1-2, FIG. 1-3)

In addition, when the case containing the electronic circuit board is filled with resin, the resin is prevented from adhering to the outer periphery of the case, and the electronic circuit board is securely held and the strength of the case opening end is improved. There is also a housing case for an electronic circuit board (see, for example, Patent Document 3).
JP 2001-237557 A (page 1-2, FIG. 1-3)

  However, in the case of the conventional printed wiring board accommodation case shown in FIG. 6, for example, the connector (506) protrudes from the cover (502) through the wiring harness routing route and the layout. If the electronic circuit board (504) including the connector (506) is attached to the box (501), and the cover (502) is attached to the electronic circuit board (504), there is a concern that the attachment may be difficult. Is done.

  An object of this invention is to provide the circuit board accommodation structure and electric junction box which can make a box and an electronic circuit board easily attach a cover in view of an above-described point.

To achieve the above object, a circuit board housing structure according to claim 1 of the present invention accommodates an electronic circuit board provided on a side surface of the box body in the circuit board housing structure on the side surface of the box body. A storage unit; a cover that is provided on the electronic circuit board and covers a periphery of a connector for external connection that is stored on an open side of the storage unit; an opening provided in the cover; and the storage of the box when the open side of part the cover is attached, while contact with the connector guide the front portion of the connector into the opening, and a guide portion provided on the inner surface of the cover, is provided, wherein The guide portion is configured by an inclined flat taper surface provided from the start end portion of the peripheral edge portion of the cover to the end portion on the opening portion side .

With the above configuration, since the guide portion that guides the front portion of the connector to the opening provided in the cover is provided on the inner surface of the cover, when the cover is mounted on the open side of the storage portion of the box body, The front portion of the connector is guided to the opening of the cover by the guide portion provided on the inner surface of the cover. Therefore, the cover is easily attached to the box by providing the guide portion on the cover. Further, when the cover is mounted on the open side of the housing portion of the box body , the connector is brought into contact with the tapered portion of the guide portion provided on the inner surface of the cover, and the front surface portion of the connector is brought into contact with the opening portion of the cover. Will be guided. Therefore, the connector mounted on the electronic circuit board is smoothly guided to the opening of the cover.

The electrical junction box according to claim 2 is characterized in that the circuit board housing structure according to claim 1 is configured.

  With the above configuration, workability when the electrical junction box is assembled is improved. Therefore, the electrical junction box can be easily assembled. Moreover, the electrical junction box which can make a cover mount easily to a box will be provided.

As described above, according to the first aspect of the present invention, the cover can be easily attached to the box body by providing the guide portion on the cover. In addition, the connector mounted on the electronic circuit board can be smoothly guided to the opening of the cover.

According to the second aspect of the present invention, the electric junction box can be easily assembled. In addition, it is possible to provide an electrical junction box in which a cover can be easily attached to the box.

  An embodiment of a circuit board housing structure and an electrical junction box according to the present invention will be described below in detail with reference to the drawings.

  FIG. 1 is an explanatory view showing an embodiment of a circuit board housing structure and an electrical junction box according to the present invention, FIG. 2 is an explanatory view showing a state where an electronic circuit board and a cover are mounted on the box, and FIG. Is an explanatory view showing a state in which the electronic circuit board and the cover are mounted on the box, FIG. 4 (a) is a front view showing the cover, FIG. 4 (b) is a rear view showing the cover, and FIG. It is a disassembled perspective view which shows one Embodiment of the electrical-connection box based on this invention.

  The vertical direction of the electrical junction box 1 will be described with reference to FIG. 5. The side where the outer cover 50 is located is the upper side and the side where the substrate cover 20 is located is the lower side with respect to the inner cover 80. Note that the definition of “upper and lower” in this specification is for convenience, and does not necessarily match the vertical direction when the circuit board housing structure and the electrical junction box are actually used. For example, with respect to the cover 10 and the electronic circuit board 30 and the board cover 20 constituting the box 5 shown in FIG. 5, the cover 10 and the electronic circuit board 30 and the board cover 20 constituting the box 5 shown in FIGS. Is upside down. 1 to 3 show an example of a state in which the electronic circuit board 30 and the cover 10 are assembled to the substrate cover 20 constituting the box 5.

  As shown in FIG. 5, the electrical junction box 1 includes an inner cover 80 made of a synthetic resin that constitutes the box 5, an electronic control circuit board 40 that is mounted below the inner cover 80, and a box that covers the electronic control circuit board 40. A synthetic resin substrate cover 20 constituting the body 5, an electronic circuit board 30 to be inserted into the substrate cover 20, a synthetic resin cover 10 covering the substrate portion 31 of the electronic circuit board 30, and an inner cover 80 A power block 100 mounted from the side, a synthetic resin fuse cover 110 mounted on the power block 100 mounted with each fuse 120 to protect each fuse 120 from the outside, and an inner cover 80 above The connector blocks 60 and 70 that are slid to be engaged and fixed are routed on the inner cover 80 between the connector blocks 60 and 70. A number of bus bars 90 and the inner cover 80 are stacked between the connector blocks 60 and 70 from above, and the connector blocks 60 and 70, the power block 100, and the wiring board 130 or wiring connected to each bus bar 90. The module 140 is configured to include a synthetic resin outer cover 50 that covers the connector blocks 60 and 70, the wiring module 140, and the like and constitutes the box body 5.

  A plurality of bus bars 90 are routed on the substrate portion 81 of the inner cover 80. The wiring board 130 is configured to include a plurality of electric wires (not shown). Each bus bar 90 is connected to the electric wire of the wiring board 130. In addition, the wiring module 140 is mounted on the wiring board 130. Each bus bar 90 is connected to a connector 48 provided on the electronic control circuit board 40.

  The electronic control circuit board 40 is also equipped with a PCB connector 45 soldered to its circuit conductor (not shown). “PCB” is an abbreviation for “Printed Circuit Board”. The electronic control circuit board 40 is equipped with various electronic components 43, and the electronic control circuit board 40 includes an ECU. “ECU” means an electronic control device, and is an abbreviation of “Electronic Control Unit”. Electronic control circuit board 40 The so-called electronic unit 40 is attached to the inner cover 80 using fasteners (not shown) such as screws.

  Various electronic components (not shown) such as capacitors, resistors, diodes, and ICs are provided on the wiring board 31 of the electronic circuit board 30. The electronic circuit board 30 is also provided with an ECU. The ECU of the electronic circuit board 30 is a gateway ECU. A gateway means a connection location for connecting a locally closed communication network and an external network. More specifically, a gateway is a functional unit that connects two computer networks having different network architectures to each other.

  A substrate cover 20 (FIGS. 1 to 3 and 5) on which the electronic circuit board 30 is mounted is formed to have a substantially flat base wall portion 21 and a substantially rectangular box-like bulge from the base wall portion 21 to be electronic. The peripheral wall portion 22 that protects the circuit board 30 from the outside and the side wall portion 24 that extends in a direction substantially orthogonal to the substantially flat base wall portion 21 are formed. The substrate cover 20 (FIG. 5) is provided with a pair of locking projection-shaped locking portions 29.

  As shown in FIGS. 1 and 4, the cover 10 attached to the substrate cover 20 includes a substantially flat base portion 11 and a peripheral portion 12 (FIG. 1, FIG. 1) projecting in a direction substantially orthogonal to the base portion 11. 4 (b)). As shown in FIG. 5, the cover 10 has a pair of rectangular frame-like engaging portions 19 (FIGS. 1, 4 and 4) corresponding to the pair of locking projection-like locking portions 29 provided on the substrate cover 20. 5) is provided.

  The wiring module 140 (FIG. 5) is interposed between the wiring board member 150, another wiring board member 160 overlaid on the wiring board member 150, and the wiring board member 150 and the other wiring board member 160. Insulating sheet 170 is provided. A module is a component of a device, a machine, or a system, and means a functional group. The insulating sheet 170 functions to insulate a hard copper wire (not shown) provided on the wiring board member 150 from a hard copper wire (not shown) provided on another wiring board member 160. After these are attached to the inner cover 80, the outer cover 50 is put on them.

  As shown in FIGS. 1 to 3 and 5, the circuit board housing structure is a structure on the side surface 21 a of the substrate cover 20 constituting the box 5. As shown in FIG. 5, the box 5 includes an inner cover 80 on which various components are mounted, an outer cover 50 attached to the upper side of the inner cover 80, and a substrate cover 20 attached to the lower side of the inner cover 80. It is configured.

  As shown in FIGS. 1 to 3 and 5, a storage portion 23 in which the electronic circuit board 30 is stored is provided on the side surface 21 a of the substrate cover 20 constituting the box 5. The small cover 10 is attached to the open portion 23 a side of the storage portion 23. The electronic circuit board 30 is equipped with a connector 35. The connector 35 includes a male terminal (not shown) and a connector housing 36 that protects each male terminal. The male terminal of the connector 35 is connected to a circuit body (not shown) of the electronic circuit board 30 so as to be energized. Since most of the external connection connectors 35 are accommodated in the substrate cover 20, the small cover 10 that covers a part of the peripheral wall 37 of the connector housing 36 is attached to the substrate cover 20.

  As shown in FIGS. 1 and 4B, a guide portion 15 is provided on the inner surface portion 10 a of the small cover 10. As shown in FIG. 4B, three guide portions 15 are provided at substantially equal intervals along the left-right width direction X in the small cover 10. The guide portion 15 abuts against the front surface portion 37a of the connector 35 of the electronic circuit board 30 when the small cover 10 is attached to the opening portion 23a side of the storage portion 23 of the substrate cover 20 (FIGS. 1 to 3). Thus, the front surface portion 37 a of the connector 35 serves to guide the opening portion 17 provided in the small cover 10.

  According to the design specifications of the electronic circuit board (30), for example, the guide part (15) of the small cover (10) is brought into contact with the front end part (33) of the wiring board (31) of the electronic circuit board (30), It is also possible to use the connector (35) in which the front surface portion (37a) is guided to the opening (17) provided in the small cover (10).

  Since the guide portion 15 that guides the front surface portion 37 a of the connector 35 to the opening portion 17 provided in the small cover 10 is provided on the inner surface portion 10 a of the small cover 10, the small cover 10 is provided in the housing portion 23 of the substrate cover 20. When mounted on the open portion 23a side, the front portion 37a of the connector 35 is guided to the opening 17 of the small cover 10 by the guide portion 15 provided on the inner surface portion 10a of the small cover 10, and the small cover 10 is provided. Is inserted into the opening 17 of the first.

  In the state shown in FIGS. 1 to 3, when the electronic circuit board 30 and the small cover 10 are fitted into the board cover 20, the electronic circuit board 30 with the connector 35 side slightly lowered by its own weight as shown in FIG. The guide unit 15 provided on the small cover 10 is assembled to the substrate cover 20 while being returned to the normal posture (FIG. 3). Accordingly, the small cover 10 can be easily and smoothly mounted on the substrate cover 20 by providing the guide 15 in the small cover 10.

  As shown in FIGS. 1 to 3, the guide portion 15 provided in the small cover 10 includes a tapered portion 15 a that guides the front surface portion 37 a of the connector 35 to the opening portion 17 provided in the small cover 10. . The taper portion 15 a is formed to have an inclined taper surface 15 a that can slide in contact with the front surface portion 37 a of the connector 35. As shown in FIG. 1, the tapered surface 15 a is a substantially flat inclined surface provided from the start end 15 b on the peripheral edge 12 side of the small cover 10 to the end portion 15 c on the opening 17 side.

  When the small cover 10 is mounted on the opening portion 23a side of the storage portion 23 of the substrate cover 20, the corner portion 37b (FIG. 2) of the front surface portion 37a of the connector 35 is slidably contacted with the tapered surface 15a of the small cover 10. The front surface portion 37a of the connector 35 is guided to the opening portion 17 of the small cover 10 (FIG. 3). Therefore, the connector 35 attached to the electronic circuit board 30 can be smoothly guided to the opening 17 of the small cover 10.

  Further, as shown in FIGS. 1 and 4B, the plurality of guide portions 15 provided in the small cover 10 include an inner surface portion 11 a of the base portion 11 of the small cover 10 and an inner surface portion 12 a of the peripheral portion 12 of the small cover 10. Therefore, the guide portion 15 of the small cover 10 is expected to function as a reinforcing rib 15 that improves the strength of the small cover 10 according to the design specifications of the small cover 10 and the like.

  Further, the grooves 26 (FIGS. 1 to 3 and 5) are introduced inside the both side walls 22 a of the peripheral wall portion 22 while being guided by both end portions 31 s and 31 t (FIG. 5) of the substrate portion 31 of the electronic circuit board 30. ) Is formed. As shown in FIG. 1, the groove 26 is formed so as to be gradually expanded from the inside of the storage portion 23 to the open portion 23 a of the storage portion 23. The groove 26 includes a first side surface portion 26a that is inclined so that the groove 26 is widened from the inside of the storage portion 23 to the open portion 23a of the storage portion 23, and a base wall portion of the substrate cover 20 that faces the first side surface portion 26a. 21 is provided with at least a substantially horizontal second side surface portion 26b. Further, a substantially curved taper guide surface 26f and a substantially planar taper guide surface 26g for facilitating insertion of the substrate portion 31 of the electronic circuit board 30 into the groove 26 of the substrate cover 20 are provided in the insertion portion 26e of the groove 26. It has been.

  As shown in FIG. 1, when the electronic circuit board 30 is mounted on the board cover 20 constituting the box 5, first, the rear end portions 32 of both end portions 31 s and 31 t of the board portion 31 constituting the electronic circuit board 30 are formed. The substrate portion 31 of the electronic circuit board 30 is guided by the taper guide surfaces 26 f and 26 g of the insertion portion 26 e of the groove 26 provided in the side wall portion 22 a of the peripheral wall portion 22 of the substrate cover 20. Be guided in. If the groove 26 is provided in the both side wall portions 22a of the peripheral wall portion 22 constituting the substrate cover 20, and the taper guide surfaces 26f and 26g are provided in the insertion portion 26e of the groove 26, the electronic circuit board 30 can be used as the substrate cover. 20 is easily inserted.

  Next, the first surface portions 31a of both end portions 31s and 31t of the substrate portion 31 constituting the electronic circuit board 30 are the first grooves 26 provided inside the side wall portions 22a of the peripheral wall portion 22 as shown in FIG. It is slidably contacted with the side surface portion 26a. Thus, if the groove | channel 26 provided with the inclined 1st side part 26a is formed in the both-sides wall part 22a of the surrounding wall part 22 which comprises the substrate cover 20, the electronic circuit board 30 will be in the board cover 20. It will be easily inserted. Therefore, the workability of assembling the electronic circuit board 30 to the substrate cover 20 constituting the box 5 is improved.

  The corner portion 37b (FIG. 2) of the front surface portion 37a of the connector 35 is brought into sliding contact with the tapered surface 15a of the small cover 10, and the front surface portion 37a of the connector 35 of the electronic circuit board 30 is inserted into the opening portion 17 of the small cover 10. At substantially the same time, the second side surfaces 31b of both end portions 31s and 31t of the substrate portion 31 constituting the electronic circuit board 30 are the second side surface portions of the grooves 26 provided inside the side wall portions 22a of the peripheral wall portion 22. 26b (FIG. 3).

  At substantially the same time, the rear end portion 32 of the substrate portion 31 opposite to the connector 35 is brought into contact with the inner surface portion 25 a of the rear wall portion 25 of the peripheral wall portion 22 constituting the substrate cover 20. In addition, the rear end portion 32 of the substrate portion 31 is erected on the base wall portion 21 and is in contact with the distal end portion 25 u of the protruding portion 25 t provided on the rear wall portion 25. Further, the inner surface portion 11a of the base portion 11 of the small cover 10 is brought into contact with the front end portion 33 (FIGS. 1 and 2) of the substrate portion 31 (FIG. 3). In this way, the electronic circuit board 30 is mounted on the substrate cover 20 constituting the box 5 while being positioned. If the groove 26 having the above shape is provided in the side wall portion 22a of the peripheral wall portion 22 of the substrate cover 20, for example, even if the electrical junction box 1 is mounted in a narrow portion in an automobile (not shown), the electronic circuit The attachment / detachment work of the electronic circuit board 30 when the board 30 is inspected and replaced is easily performed.

  Further, when the electronic circuit board 30 is positioned and attached to the substrate cover 20 constituting the box 5, a pair of the two provided on both sides of the base 11 of the small cover 10 (FIGS. 1, 4, and 5). The rectangular frame-shaped engaging portion 19 is engaged with a pair of locking projection-shaped locking portions 29 provided on the side wall portion 22a of the peripheral wall portion 22 of the substrate cover 20 (FIG. 5), whereby the small cover 10 is engaged. Is securely attached to the substrate cover 20 constituting the box 5. The substantially rectangular peripheral edge portion 12 (FIGS. 1 and 2) of the small cover 10 is aligned with the opening portion 23 a of the rectangular opening shape of the substrate cover 20, and the small cover 10 forms the substrate cover 20 constituting the box 5. (FIG. 3).

  The circuit board housing structure shown in FIGS. 1 to 3 is configured in an electric junction box 1 as shown in FIG. Thereby, workability | operativity when the electrical junction box 1 is assembled is improved. Therefore, the electrical junction box 1 can be easily assembled. In addition, the electrical connection box 1 in which the small cover 10 can be easily attached to the box 5 can be provided to an automobile parts assembly manufacturer or the like.

  An electrical junction box means a junction box or junction block (J / B), relay block (R / B), connection unit, etc. Generally, inside a junction box or junction block (J / B) or connection unit, etc. An electronic control unit (ECU) is equipped.

  Below, an example of the assembly procedure of the electrical junction box 1 is demonstrated based on FIG.

  A plurality of bus bars 90 are routed on the substrate portion 81 of the inner cover 80. Further, a fastener (not shown) such as a screw is used to attach the electronic unit 40 to the inner cover 80. At that time, the connector 48 mounted on the electronic unit 40 and each bus bar 90 are connected so as to be energized.

  A slide hooking portion 68 having a substantially T-shaped cross section provided in the connector housing 66 of the connector block 60 is aligned with a slide hooking portion 88A having a substantially T-shaped cross section provided in the inner cover 80. The engaging block 69 provided in the housing 66 is engaged with an engaging portion (not shown) provided in the inner cover 80, so that the connector block 60 is mounted and fixed to the inner cover 80. The

  Further, a slide hooking portion 78 having a substantially T-shaped cross section provided in the connector housing 76 of the connector block 70 is aligned with a slide hooking portion 88B having a substantially T-shaped cross section provided in the inner cover 80. The engagement block 79 provided on the connector housing 76 is engaged with an engagement portion (not shown) provided on the inner cover 80 so that the connector block 70 is mounted on the inner cover 80. Fixed.

  Further, a slide hooking portion 108 having a substantially T-shaped cross section provided in the housing 106 of the power block 100 is aligned with a slide hooking portion 88C having a substantially T-shaped cross section provided in the inner cover 80. The locking block 109 provided on the housing 106 is engaged with an engaging portion (not shown) provided on the inner cover 80 so that the power block 100 is mounted and fixed on the inner cover 80. The

  After confirming that the predetermined fuse 120 is attached to the power block 100, the fuse cover 110 is attached to the power block 100. The mounting operation of the fuse cover 110 to the power block 100 may be performed during the assembly process of the electrical junction box 1 or may be before the electrical junction box 1 is shipped to an automobile parts assembly manufacturer or the like. Alternatively, it may be performed at the end of the process of assembling the electrical junction box 1.

  On the board portion 81 of the inner cover 80, the wiring board 130 is mounted between the connector blocks 60 and 70. Each bus bar 90 is connected to an electric wire (not shown) of the wiring board 130 so as to be energized. Moreover, the wiring module 140 assembled in advance is mounted on the wiring board 130, and each part and the wiring module 140 are connected so as to be energized.

  Further, the engaging portion 59 </ b> L provided on the outer cover 50 is engaged with the engaging portion 89 </ b> L provided on the inner cover 80, so that the outer cover 50 is attached and fixed to the inner cover 80.

  Further, the engaging portion 29 </ b> P provided on the substrate cover 20 is engaged with the engaging portion 89 </ b> P provided on the inner cover 80, so that the substrate cover 20 is attached and fixed to the inner cover 80.

  When the electronic circuit board 30 is attached to the substrate cover 20 and the small cover 10 is attached to the substrate cover 20, the electronic circuit board 30 is securely fixed to the substrate cover 20. At that time, as shown in FIG. 2, the connector 35 of the electronic circuit board 30 is slightly lowered from the back end 32 of the wiring board 31 due to its own weight. Next, when the electronic circuit board 30 is pressed by the small cover 10 toward the housing portion 23 of the substrate cover 20, the corner portion 37 b of the front surface portion 37 a of the connector 35 has a peripheral edge provided on the small cover 10. It is pushed up on the tapered surface 15a inclined from the start end 15b on the part 12 side to the terminal end 15c on the opening 17 side. Thereby, the electronic circuit board 30 is assembled | attached to the board | substrate cover 20, returning to a regular attitude | position (FIG. 3). The engaging portion 19 provided in the small cover 10 (FIGS. 1, 4 and 5) is engaged with the engaging portion 29 provided in the substrate cover 20 (FIG. 5), so that the small cover 10 and the electronic The circuit board 30 is attached and fixed to the substrate cover 20 (FIG. 3).

  The front portion 37a of the connector 35 guided to the opening 17 of the small cover 10 by the guide portion 15 provided on the small cover 10 is placed outside the small cover 10 from the opening 17 of the small cover 10 as shown in FIG. It is exposed and can be connected to a mating connector (not shown). Depending on the design specifications of the electrical junction box 1 (FIG. 5), the electronic circuit board 30 and the small cover 10 may be attached and fixed to the board cover 20 by, for example, an automobile parts assembly manufacturer.

  Thereafter, a mating connector (not shown) of a wire harness (not shown) is connected to each of the connectors 35, 45, 65, 75 so as to be energized. A wire harness (not shown) extends from the electrical connection box 1 to each electrical component (not shown) installed in the automobile (not shown). A wire harness (not shown) is stretched around an automobile (not shown). The electrical connection box 1 and each electrical component (not shown) are connected by a wire harness (not shown) so as to be energized.

It is explanatory drawing which shows one Embodiment of the circuit board storage structure and electric junction box which concern on this invention. It is explanatory drawing which shows the state by which an electronic circuit board and a cover are mounted | worn with a box. It is explanatory drawing which shows the state with which the electronic circuit board and the cover were mounted | worn to the box. (A) is a front view which shows a cover, (b) is a rear view which shows a cover. It is a disassembled perspective view which shows one Embodiment of the electrical-connection box based on this invention. It is a disassembled perspective view which shows one form of the accommodation case of the conventional printed wiring board.

Explanation of symbols

1 Electrical connection box 5 Box body 10 Cover (small cover)
15 Rib (guide)
15a Tapered surface (tapered part)
17 Opening portion 20 Substrate cover 21a Side surface 23 Storage portion 31 Wiring substrate (substrate portion)
30 Electronic circuit board 35 Connector 37a Front part

Claims (2)

In the circuit board storage structure on the side of the box,
A storage unit that is provided on a side surface of the box and stores an electronic circuit board; and
A cover that covers the periphery of an external connection connector that is mounted on the electronic circuit board and is housed on the open side of the housing;
An opening provided in the cover;
A guide portion provided on an inner surface of the cover that guides a front surface portion of the connector to the opening while contacting the connector when the cover is mounted on the open side of the storage portion of the box body; ,
Is provided,
The circuit board housing structure , wherein the guide portion is configured by an inclined flat taper surface provided from a start end portion of a peripheral edge portion of the cover to a terminal end portion on the opening side .   An electrical junction box comprising the circuit board housing structure according to claim 1.

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