Housing fuse unit for a vehicle and housing for substrate accommodation

Abstract

Housing fuse unit for a vehicle, comprising: a housing (3) in which a printed circuit board (150) is to be housed, and a support (5) configured to attach the housing (3) to the vehicle by approaching a lower surface (3a) of the housing (3) in a direction perpendicular to the lower surface (3a), wherein the housing (3) has a plurality of housing sides (6, 7, 8) perpendicular to the lower surface (3a), wherein at least one of the housing sides (6, 7, 8) has a retaining pin (11, 21, 31) projecting in a direction perpendicular to the housing side (6, 7, 8), the carrier (5) has a side support component (101, 102, 103) formed in a board shape in which a through hole (111, 112, 113) for fitting the retaining pin (11, 21, 31) is formed, the carrier (5) is made to approach the housing (3) in a state in which the side support component (101, 102, 103) is parallel to the housing side (6, 7, 8) having the retaining pin (11, 21, 31), the carrier (5) is configured to complete attachment to the housing (3) such that a tip part of the side support component (101, 102, 103) is in contact with the retaining pin (11, 21, 31) in an attachment direction and passes over the retaining pin (11, 21, 31) and that the retaining pin (11, 21, 31) is fitted into the through hole (111, 112, 113) of the side support component (101, 102, 103), wherein the retaining pin (11, 21, 31) has: an inclined approach surface (61) having a height that is increased when extending in the mounting direction, wherein the tip part of the side support component (101, 102, 103) is first in contact with the inclined approach surface (61) when the carrier (5) is attached to the housing (3), and at least one holding surface (62, 63) formed to be opposite to an inner peripheral surface (121, 122, 123) of the through-hole (111, 112, 113) and to regulate the side support component (101, 102, 103) from moving further in the mounting direction when the holding pin (11, 21, 31) is fitted to the through-hole (111, 112, 113) of the side support component (101, 102, 103), wherein the at least one holding surface (62, 63) is visible when viewed from the outside in the mounting direction, wherein the at least one holding surface (62, 63) is different from the inclined approach surface (61), the inner peripheral surface (121, 122, 123) of the through-hole (111, 112, 113) is in contact with the at least one holding surface (62, 63) when the carrier (5) is further moved in the mounting direction after the holding pin (11, 21, 31) is fitted into the through-hole (111, 112, 113), and a height of an upper part of the at least one holding surface (62, 63) is higher than or equal to a height of an upper part of the inclined approach surface (61).

Description

TECHNICAL FIELD

[0001] The present disclosure relates to a housing fuse unit for a vehicle and a housing for substrate accommodation. STATE OF THE ART

[0002] In many cases, an electronic control unit is mounted on a vehicle using a metal carrier manufactured through press processing. Generally, an electronic control unit contains a circuit board for controlling a vehicle, and the circuit board is housed in a housing. Before mounting an electronic control unit on a vehicle using a carrier, it is necessary to install the carrier on the panel.

[0003] JP 2005-150566 A describes a technique for easily attaching a bracket to an electronic control unit. In more detail, the bracket has a support plate portion that supports the cover by contacting both sides of the electronic control unit cover when attached to the electronic control unit. Each side of the cover has a protrusion portion, and each support plate portion of the bracket has a through hole into which the protrusion portion is fitted. The support plate portion of the bracket is fabricated to contact the side of the cover, and the bracket is fabricated to approach the cover in a regular attachment direction. Then, the support plate portion of the bracket passes over the protrusion portion, and the protrusion portion is fitted into the through hole of the support plate portion.The installation of the support is completed when each projection is fitted into the respective through hole.

[0004] In JP 2005-150566 A, the protrusion portion is shaped so that the support plate portion of the bracket can easily pass over the protrusion portion during the bracket installation process. Specifically, the height of the protrusion portion is made to increase as a whole from the front end to the rear end in the mounting direction. Accordingly, the protrusion portion itself has no function of regulating the bracket's movement in the mounting direction from the state where the protrusion portion is fitted with the through hole.

[0005] Then, in JP 2005-150566 A, a stopper for regulating the carrier's further movement in the mounting direction is provided at a predetermined position on both sides of the panel along the mounting direction. When the carrier attempts to move further in the mounting direction after the carrier is attached to the panel, the end of the support plate part is in contact with the stopper to be regulated during movement in the mounting direction.

[0006] In JP 2005-150566 A, the stopper regulates the carrier's continued movement in the installation direction from the state where the carrier is installed in the panel. However, when a large load is applied to the panel in the installation direction by the carrier due to an impact generated by, for example, an accident or other vehicle-related factors, a large shear stress is applied to the stopper through the support plate portion of the carrier. This shear stress may exceed an allowable stress of the stopper. Accordingly, it may be difficult to apply the technique described in JP 2005-150566 A to a product that is required to function properly even after an impact is applied by a vehicle accident.

[0007] If the size of the stopper in the thrust direction (namely, the size in the mounting direction) is increased to be able to withstand the large load caused by the impact, the overall dimension of the fairing is increased. As a result, the vehicle design is affected.

[0008] Furthermore, a change in the position of the protrusion part is also taken into account to increase the size of the stopper in the thrust direction. However, when the position of the protrusion part is changed, the relative positional relationship between the cowl and the carrier is changed. As a result, since a relative positional relationship also changes between the vehicle and the cowl attached to the vehicle, the vehicle design may be affected. It is possible to change the shape of the carrier in response to the change in the cowl, such as a position change of the protrusion part, so that the relative positional relationship between the cowl and the carrier is not changed. However, in this case, it is necessary to change the shape of the carrier.When it is necessary to use an existing beam, it is difficult to take action involving change in the design of a beam.

[0009] Housings with securing structures are also known from CN 2 04 994 129 U, US 2012 / 0 106 035 A1, JP S61 - 149 380 A and JP 2009 - 127 732 A.

[0010] It is an object of the present disclosure to provide a chassis fuse unit for a vehicle and a chassis for substrate housing, by which an attachment can be properly maintained after a carrier is normally attached to a chassis, while maintaining operability when the carrier is attached to the chassis. This object is achieved by a chassis fuse unit according to claim 1 and a chassis according to claim 6. Advantageous embodiments are subject to the dependent claims.

[0011] A housing fuse unit for a vehicle according to one aspect of the present disclosure includes: a housing in which a circuit board is housed, and a bracket for attaching the housing to the vehicle. The bracket is configured to be attached to the housing by approaching a bottom surface of the housing in a direction perpendicular to the bottom surface. The housing has a plurality of housing sides perpendicular to the bottom surface. At least one of the housing sides has a support point protruding in a direction perpendicular to the housing side.

[0012] The carrier has a side support component formed in a plate having a through hole formed therein for fitting the respective retaining pin.

[0013] The bracket is fabricated to approach the housing in a state where the side support component is parallel to the housing side having the respective retaining pin. The bracket is configured to complete the mounting in the housing such that a tip portion of the side support component is in contact with the retaining pin in the mounting direction and passes over the retaining pin, and the retaining pin is fitted into the through hole of the side support component.

[0014] The retaining pin has an inclined approach surface and at least one retaining surface. The inclined approach surface has a height that increases as it extends in the mounting direction, and the tip part of the side support component initially contacts the inclined approach surface when the bracket is attached to the housing. The retaining surface is formed to regulate the side support component as it advances in the mounting direction when the retaining pin is fitted to the through-hole of the side support component. That is, the retaining surface is visible when viewed from the outside in the mounting direction and is formed to oppose an inner peripheral surface of the through-hole when the retaining pin is fitted to the through-hole. The height of the upper part of the retaining surface is higher than or equal to the height of the upper part of the inclined approach surface.

[0015] According to the chassis securing unit for a vehicle configured in this way, when the bracket is attached to the chassis, the tip part of the side support component of the bracket contacts the inclined approach surface of the retaining pin and passes over the retaining pin. Accordingly, the bracket can be easily moved in the mounting direction during the work of attaching the chassis.

[0016] Furthermore, after the installation is completed, even if the carrier attempts to move further in the installation direction, the movement is regulated by the retaining surface of the retaining pin. That is, even if the carrier attempts to move further in the installation direction, the movement is regulated by the inner peripheral surface of the through hole of the side support component, which is in contact with the retaining surface of the retaining pin.

[0017] Accordingly, after the housing securing unit, the working ability can be better maintained when the carrier is installed on the housing, and the installation can be properly maintained after the carrier is normally installed on the housing.

[0018] In addition, the "bottom surface" of the housing represents a surface of the sides of the housing that are opposite to the carrier when the carrier is installed. In addition, the "height" represents a length of the housing side where the retaining pin is prepared, in the perpendicular direction perpendicular to the housing side. The "upper part" is a section where the height is the maximum. In addition, the tip part of the side support component in the installation direction is a section of the side support component that first comes into contact with the inclined surface of the retaining pin in the attachment process. In addition, "perpendicular" is not restricted to being strictly perpendicular and cannot be strictly perpendicular as long as the target effect is achieved. In addition, "parallel" is not restricted to being strictly parallel and cannot be strictly parallel as long as the target effect is achieved. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view illustrating a housing fuse unit for a vehicle according to an embodiment, in a state where a bracket is not attached to a housing. Fig. 2 is a view when viewed in an arrow direction II of Fig. 1. Fig. 3 is a view when viewed in an arrow direction III of Fig. 1. Fig. 4 is a view when viewed in an arrow direction VI of Fig. 1. Fig. 5 is a view when viewed in an arrow direction V of Fig. 1. Fig. 6 is a perspective view illustrating the carrier of the embodiment. Fig. 7 is a perspective view illustrating the housing fuse unit for a vehicle in a state where the bracket is attached to the housing. Fig. 8 is a view when viewed in an arrow direction VIII of Fig. 7. Fig. 9 is a view when viewed in an arrow direction IX of Fig. 7. Fig. 10 is a view when viewed in an arrow direction X of Fig. 7. Fig. 11 is a view when viewed in an arrow direction XI of Fig. 7. Fig. 12 is an enlarged side view illustrating a first retaining pin on a first side of the housing. Fig. 13 is a perspective view showing the first retaining pin. Fig. 14 is a cross-sectional view taken along a line XIV-XIV of Fig. 12 was taken. Fig. 15 is a cross-sectional view taken along a line XV-XV of Fig. 12 was taken. Fig. 16 is a cross-sectional view taken along a line XVI-XVI of Fig. 12 was taken. Fig. 17 is a cross-sectional view taken along a line XVII-XVII of Fig. 12 was taken. Fig. Fig. 18 is a perspective view showing the first holding pin and its surroundings in the state where the bracket is attached. DESCRIPTION OF THE EMBODIMENTS

[0019] In the following, an embodiment is explained with reference to the drawings. (1) Contour of the housing fuse unit for a vehicle

[0020] A housing fuse unit 1 for a vehicle of this embodiment will be described with reference to Fig. 1 to Fig. 6 explains. As in Fig. 1, the housing fuse unit 1 includes a housing 3 and a carrier 5. In this embodiment, the housing 3 is a product made of resin. As shown in Fig. 1, the housing 3 has an approximately rectangular cuboid shape as a whole. That is, the housing 3 has a bottom surface 3a in which the surface area is relatively large, four sides that are perpendicular to the bottom surface 3a, and a bottom surface 3b (relative to Fig. 3) has.

[0021] As indicated by a dashed line in Fig. 1 and Fig. As shown in Figure 2, a circuit board 150 is housed in the casing 3 and has a function of controlling the vehicle (not shown). The vehicle includes all kinds of units that can run with wheels rotated by various types of sources, such as an internal combustion engine and / or an electric motor. The control devices include not only various types of controls directly related to the running of the vehicle, but also various types of controls that are not directly or not at all related to the running of the vehicle. That is, the controller is a concept that includes all these types of controls implemented in the vehicle.

[0022] Controls directly related to vehicle operation include, for example, control of an internal combustion engine in a vehicle that uses the internal combustion engine as a power source, control of an electric motor in a vehicle that uses the electric motor as a power source, control of a transmission, control of braking equipment, and control of power control equipment. Controls not directly related to vehicle operation or not related at all include, for example, control of various lights, control of a power window, control of an airbag, control of an air conditioner, and control of a navigation system.

[0023] The printed circuit board 150, which is housed in the housing 3, has an electronic circuit for implementing at least one type of specific control. As indicated by a dashed line in Fig. 1 and Fig. 2, the circuit board 150 has a plurality of sockets 151, 152, 153, 154 for electrically connecting the circuit board 150 to the outside.

[0024] As it is in Fig. 1 to Fig. 4, a first side 6, which is one of the four sides of the housing 3, has a first support pin 11 having a columnar shape projecting in a direction perpendicular to the first side 6. As shown in Fig. 2 and Fig. 3, a second side 7, which is opposite to the first side 6, among the four sides of the housing 3 has a second support pin 21 having a columnar shape projecting in a direction perpendicular to the second side 7. As shown in Fig. 2, Fig. 3 and Fig. 5, among the four sides of the housing 3, a third side 8 has a third support pin 31 having a columnar shape projecting in a direction perpendicular to the third side 8.

[0025] In this embodiment, each of the support pins 11, 21, 31 is made of resin. That is, each of the support pins 11, 21, 31 is integrally formed with resin as a whole, the housing 3. However, the housing 3 is not limited to being made of resin and may be formed of other materials other than resin. The material of each support pin 11, 21, 31 may be different from the material of the side on which the support pin is formed. For example, each side may be made of resin, and each support pin 11, 21, 31 may be made of metal.

[0026] The bracket 5 is used to attach the housing 3 to a predetermined part of the vehicle. That is, the bracket 5 is attached to be in direct contact with the vehicle, and the housing 3 is attached to the vehicle through the bracket 5. The bracket 5 is attached to the housing 3 by bringing the lower surface 3a of the housing 3 closer together in the direction perpendicular to the lower surface 3a of the housing 3. Alternatively, the bracket 5 may be attached to the housing 3 by causing the housing 3 to approach the bracket 5. There may be several specific methods by which the housing 3 and the bracket 5 relatively approach each other.

[0027] In the following explanation, for ease of understanding, unless otherwise indicated, the carrier 5 is attached to the housing 3 by causing the carrier 5 to approach the lower surface 3a in the direction perpendicular to the lower surface 3a relative to the housing 3 being in a stationary state. The approach direction, that is, the direction perpendicular to the lower surface 3a to approach the lower surface 3a, will hereinafter be called an "attachment direction." A direction opposite to the attachment direction, that is, the direction perpendicular to the lower surface 3a to separate from the lower surface 3a, will hereinafter be called a "separation direction."

[0028] As it is in Fig. 1 and Fig. 6, the carrier 5 has a fixed component 100 and three support components 101, 102, 103. The fixed component 100 and the three support components 101, 102, 103 are integrally formed as a sheet metal on which pressure processing has been performed.

[0029] The fixed component 100 has a plate shape of an isosceles triangle with the central part removed. Of the three support components 101, 102, 103, the first support component 101 and the second support component 102 are positioned to correspond to the respective ends of the base of the fixed component 100, which has the isosceles triangular shape, and are perpendicular to the plate surface of the fixed component 100. The third support component 103 is perpendicular to the plate surface of the fixed component 100 and is positioned to correspond to the vertex of the fixed component 100, which has the isosceles triangular shape.

[0030] The three support components 101, 102, 103 are all of the same shape, and a through-hole is formed in each of the three support components 101, 102, 103. That is, a first through-hole 111 is formed in the first support component 101, a second through-hole 112 is formed in the second support component 102, and a third through-hole 113 is formed in the third support component 103.

[0031] When the carrier 5 is attached to the housing 3, the first retaining pin 11 formed on the first side 6 of the housing 3 is fitted into the first through-hole 111. When the carrier 5 is attached to the housing 3, the second retaining pin 21 formed in the second side 7 of the housing 3 is fitted into the second through-hole 112. When the carrier 5 is attached to the housing 3, the third retaining pin 31 formed in the third side 8 of the housing 3 is fitted into the third through-hole 113.

[0032] The three support components 101, 102, 103 are respectively corresponding in positional relationship to the support pins 11, 21, 31 of the housing 3 and are integrally formed by the fixed component 100. That is, when the carrier 5 is attached to the housing 3 as shown in Fig. As shown in Fig. 7, which will be mentioned later, the first support component 101 of the bracket 5 is in contact with the first side 6 of the housing 3 in the state of being opposite in parallel, and the second support pin 21 is fitted into the second through-hole 112. At this time, the inner peripheral surface 121 of the first through-hole 111 is in the state opposite to the side surface of the first support pin 11.

[0033] At that time, although it was in Fig. 7 is not directly shown, the second support component 102 of the bracket 5 is also in contact with the second side 7 of the housing 3 in the state that is opposite, parallel, and the second support pin 21 is fitted into the second through-hole 112. At this time, the inner peripheral surface 122 of the second through-hole 112 is in the state that is opposite to the side surface of the second support pin 21. The third support component 103 of the bracket 5 is also in contact with the third side 8 of the housing 3 in the state that they are opposite, parallel, and the third support pin 31 is fitted into the third through-hole 113. At this time, the inner peripheral surface 123 of the third through-hole 113 is in the state that is opposite to the side surface of the third support pin 31.

[0034] The inner peripheral surfaces 121, 122, 123 of the through holes 111, 112, 113 are perpendicular to the plate surface of the support components 101, 102, 103, respectively. However, the inner peripheral surfaces 121, 122, 123 are not limited to being perpendicular to the plate surface of the support components 101, 102, 103.

[0035] The support components 101, 102, 103 have the same thickness Dp. Fig. 4 represents the thickness Dp of the third support component 103.

[0036] In this embodiment, the support 5 is made of metal. More specifically, the support 5 is formed of a steel plate or an aluminum alloy plate. However, the material of the support 5 is not limited to this. For example, a support made of a material other than metal, such as resin, may be used. (2) Configuration of the housing

[0037] The sides 6, 7, 8 of the housing 3 are explained in more detail, on which the retaining pins 11, 21, 31 are formed respectively.

[0038] The first retaining pin 11 is formed on the first side 6. As shown in Fig. 1 to Fig. 4, the first side 6 has a pin-forming side 10 that is a part of the first side 6, and the first retaining pin 11 protrudes from the pin-forming side 10. Insertion guides 12 and 13 formed on the first side 6 are positioned on the respective sides of the first retaining pin 11.

[0039] Each of the insertion guides 12 and 13 has at least the following four functions. As a first function, when the carrier 5 is attached to the housing 3, the insertion guide 12, 13 guides the first support component 101 of the carrier 5 in the attachment direction while maintaining the state parallel to the pin formation side 10. As a second function, the insertion guide 12, 13 inhibits the first support component 101 from outwardly separating from the first side 6. More specifically, after the first retaining pin 11 is fitted to the first through-hole 111 of the first support component 101, the first retaining pin 11 is restricted from falling out from the first through-hole 111 by the separation of the first support component 101 from the first side in the perpendicular direction. As a third function, the insertion guide 12, 13 restricts the first support component 101 from moving in the lateral direction.As a fourth function, the insertion guide 12, 13 restricts the first support component 101 from rotating in the state where the first retaining pin 11 is fitted to the first through-hole 111. Here, rotation means rotation in the circumferential direction along the inner peripheral surface 121 of the first through-hole 111. An insertion space is formed between the first side 6 and each of the insertion guides 12 and 13 for inserting the first support component 101 of the carrier 5.

[0040] In the process of attaching the bracket 5 to the housing 3, the respective ends of the first support component 101 of the bracket 5 are inserted into the insertion space formed by the insertion guides 12, 13. The first support component 101 is guided in the mounting direction in the state where the respective ends are inserted into each insertion guide 12, 13. Finally, the retaining pin 11 is fitted into the first through hole 111.

[0041] As it is in Fig. 2 to Fig. As shown in Fig. 4, stoppers 16 and 17 are formed on the first side 6 at positions opposite to the insertion guides 12 and 13, respectively, near the upper surface 3b. Each of the stoppers 16 and 17 is provided to regulate the first support component 101 from moving further in the mounting direction (hereinafter, flaw penetration) after the carrier 5 is attached to the housing 3, namely, after the first neck pin 11 is fitted to the first through hole 111 of the first support component 101 of the carrier 5. In this embodiment, the first retaining pin 11 itself has the function of regulating the flaw penetration of the first support component 101. Accordingly, it is not essential to form the stoppers 16 and 17. In this embodiment, the stoppers 16 and 17 are formed to increase the effect of regulating the fault penetration of the first support component 101.

[0042] The configuration of the second holding pin 21 and its surroundings on the second side 7 is substantially the same as that of the first holding pin 11 and its surroundings on the first side 6. That is, as shown in Fig. 2 and Fig. 3, the second side 7 has a pin-forming side 20 that is a part of the second side 7, and the second retaining pin 21 protrudes from the pin-forming side 20. Insertion guides 22 and 23 formed on the second side 7 are positioned on respective sides of the second retaining pin 21.

[0043] Stoppers 26 and 27 are formed on the second side 7 and at positions opposite to the insertion guides 22 and 23, respectively, near the upper surface 3b of the housing 3. It is not essential to form the stoppers 26 and 27.

[0044] The third holding pin 31 and its surroundings on the third side 8 are substantially the same for obtaining the same actions and effects as those of the first side 6, although the detailed configuration such as the position of the stopper and the shape of the insertion guide is partially different from the first holding pin 11 and its surroundings in the first side 6.

[0045] That is, as it is in Fig. 2 and Fig. 3, the third side 8 has a pin-forming side 30 that is a part of the third side 8, and the third retaining pin 31 protrudes from the pin-forming side 30. Insertion guides 32 and 33 formed on the third side 8 are positioned on the respective sides of the third retaining pin 31 for inserting the third support component 103 of the carrier 5 in the mounting direction.

[0046] Stoppers 36 and 37 are formed at the end of the pin formation side 30 adjacent to the upper surface 3b of the housing 3. The stoppers 36 and 37 are provided to regulate the penetration of the third support component 103 after the carrier 5 is attached to the housing 3, namely, after the third retaining pin 31 is fitted into the third through-hole 113 of the third support component 103 of the carrier 5. The formation of the stoppers 36 and 37 is not mandatory. (3) Attaching the carrier to the housing

[0047] The carrier 5 is fixed to the housing 3 by approaching each other from the position state shown in Fig. 1. That is, at the time of attachment, the bracket 5 is arranged on the housing 3 so that the side 100a opposite the housing is in a state parallel to the bottom surface 3a of the housing 3. The side 100a opposite the housing is a surface of the fixed component 100 adjacent to the support components 101, 102, 103. Furthermore, the bracket 5 is arranged on the housing 3 so that the three support components 101, 102, 103 become parallel to the sides of the housing 3, respectively.

[0048] After the housing 3 and the carrier 5 are in the positional relationship described above (namely, the positional relationship shown in Fig. 1), when the carrier 5 is caused to approach the housing 3 in the mounting direction, the support components 101, 102, 103 of the carrier 5 are inserted into the corresponding insertion spaces defined between the sides 6, 7, 8 and the insertion guide, respectively. When the carrier 5 is moved in the mounting direction as it is, the support components 101, 102, 103 are moved inside the respective insertion spaces in the mounting direction. That is, each of the support components 101, 102, 103 is guided by the insertion guide in the mounting direction.

[0049] As the carrier 5 continues in the mounting direction, the tip end of the support component 101, 102, 103 is in contact with the corresponding retaining pin in the mounting direction and passes over the corresponding retaining pin. The carrier 5 is specified and designed, for example, as shown in Fig. 9, so that the three support components 101, 102, 103 are in contact with and parallel to the corresponding sides of the housing 3 in the state in which the attachment of the housing 3 is completed.

[0050] Accordingly, in the process in which the tip part of the support component 101, 102, 103 passes over the holding pin, each of the support components 101, 102, 103 is elastically deformed in the direction separating from the side of the housing 3 by receiving the reaction force from the holding pin in the direction perpendicular to the side of the housing.

[0051] Each insertion guide prepared on the respective side of the retaining pin is, for example, as shown in Fig. 9, is configured to be in the state where the side part of the insertion guide adjacent to the retaining pin is in contact with the surface of the support component (which is opposite from the surface opposite to the housing side) when the attachment of the bracket to the housing 3 is completed. That is, each insertion guide is configured to guide the support component in the attachment direction in the state of surface contact with the housing side.

[0052] Accordingly, at the attachment time, when the support component 101, 102, 103 is separated from the side of the housing in the process in which the tip end of each support component 101, 102, 103 passes over the holding pin, each insertion guide is elastically deformed by the force received from the support component, so that the side part of the insertion guide adjacent to the holding pin is separated from the side of the housing.

[0053] When each support component 101, 102, 103 passes over the corresponding retaining pin and continues in the mounting direction, the respective retaining pin is finally fitted into the through-hole 111, 112, 113 of the support component 101, 102, 103. When the retaining pins 11, 21, 31 are fitted into the through-holes 111, 112, 113, respectively, the attachment of the carrier 5 to the housing 3 is completed.

[0054] As it is in Fig. As shown in Fig. 6, a tip slope 101a is formed in the tip side of the first support component 101 of the carrier 5. The tip slope 101a is formed to allow the first support component 101 to smoothly pass over the first retaining pin 11 in the process of attaching the carrier 5.

[0055] However, in this embodiment, as will be shown later using Fig. 12, an inclined approach surface 61 is formed on the separation side of the first support pin 11 so that the first support component 101 can smoothly pass over the first support pin 11. Accordingly, it is not essential to form the tip slope 101a on the tip side of the first support component 101 of the carrier 5.

[0056] The tip slopes 102a and 103a are also formed on the tip sides of the second support component 102 and the third support component 103 of the beam 5, respectively. The shape and function of each tip slope 102a, 103a are the same as those of the first tip slope 101a.

[0057] When the attachment of the carrier 5 to the housing 3 is completed, the state shown in Fig. 7 to Fig. 11. That is, as shown in Fig. 7 to Fig. As shown in Fig. 10, the first support component 101 of the carrier 5 is in a state parallel to the first side 6 of the housing 3, and both ends are inserted into the insertion space defined by the insertion guides 12, 13. Furthermore, the first retaining pin 11 is fitted into the first through-hole 111 of the first support component 101.

[0058] The height of the stopper 16, 17 formed in the first side 6 is a little higher than the thickness Dp of the first support component 101. Accordingly, as shown in Fig. 8 and Fig. 9, when the housing 3 is viewed in the mounting direction and in the detaching direction, the stopper 16, 17 protrudes slightly outward from the first support component 101 in the direction perpendicular to the first side 6.

[0059] The relationship between the second support component 102 of the carrier 5 and the second side 7 of the housing 3 is as shown in Fig. 8 and Fig. 9, the same as the relationship between the first support component 101 and the first side 6.

[0060] As it is in Fig. 8, Fig. 9 and Fig. As shown in Fig. 11, the third support component 103 of the carrier is in a state parallel to the third side 8 of the housing 3, and both ends are inserted into the insertion space defined by the insertion guide 32, 33. In addition, the third retaining pin 31 is fitted into the third through-hole 113 of the third support component 103. In addition, the height of the stopper 36, 37 formed on the third side 8 is higher than the thickness Dp of the third support component 103. Accordingly, as shown in Fig. 8 and Fig. 9, when the housing is viewed in the mounting direction and in the detaching direction, the stopper 36, 37 protrudes outwardly from the third support component 103 in the direction perpendicular to the third side 8.

[0061] The insertion guide restricts the support component 101, 102, 103 from separating in the direction perpendicular to the side of the housing. That is, even if the support component attempts to be separated perpendicularly from the side of the housing, the surface of the support component is in contact with the side part of the insertion guide to regulate the separation movement. Accordingly, the fitting state of the retaining pin in the through-hole is maintained. In this embodiment, each of the support components 101, 102, 103 is integrally formed with the attached component 100. As mentioned above, the support component 101, 102, 103 is designed to be in the state parallel to and in contact with the corresponding side of the housing 3 when the attachment of the housing 3 is completed.Accordingly, such a configuration of the carrier 5 itself produces the effect of regulating each support component 101, 102, 103 upon vertical separation from the side of the housing.

[0062] When the attachment of the carrier 5 to the housing 3 is completed, as shown in Fig. 10 and Fig. As shown in Fig. 11, an opposing space 130 having a fixed distance is created between the lower surface 3a of the housing 3 and the housing-opposite side 100a of the support 5. That is, the lower surface 3a of the housing 3 and the housing-opposite side 100a of the support 5 are not in contact with each other and are maintained in the separated state.

[0063] When attaching the housing 3 to a vehicle, the carrier 5 is attached directly to the vehicle. Since various specific methods for attaching the carrier 5 to the vehicle are known, the explanation is omitted here.

[0064] In an actual mounting operation, for example, the carrier 5 is first mounted on the vehicle, then the housing 3 can be mounted on the vehicle by attaching the housing 3 to the carrier 5. Alternatively, the carrier 5 is attached to the housing 3 in advance, and the housing 3 with the carrier 5 is mounted on the vehicle. (4) Detailed structure of the retaining pin

[0065] Next, the configuration of each support pin 11, 21, 31 will be explained more concretely. Since the configuration is the same among the support pins 11, 21, 31, the first support pin 11 formed on the first side 6 will be explained in detail as a representative one with respect to the Fig. 12 to 18 mentioned.

[0066] In Fig. 16 and Fig. 17, the upper drawing represents a state in which the carrier 5 is not attached to the housing, and the lower drawing represents a state in which the carrier 5 is attached to the housing. The lower drawings of Fig. 16 and Fig. 17 schematically illustrate the first support component 101 of the carrier using a single chain line. In addition, Fig. 18 shows a state in which the carrier 5 is attached to the housing. In Fig. 18 is similar to Fig. 16 and Fig. 17, the first support component 101 of the carrier 5 is schematically illustrated using a single chain line. That is, the lower drawing of Fig. 16, the lower drawing of Fig. 17 and Fig. 18 illustrate the first support component 101 of the carrier 5 with a single chain line, so that the state in which the first side 6 of the housing 3 is seen through the first support component 101 is shown.

[0067] As shown in Fig .12 to Fig. 18, the first holding pin 11 has the inclined approach surface 61, two attachment holding surfaces 62 and 63, an upper plane 64, an auxiliary slope 65, an upper auxiliary plane 66, and a separation holding surface 67.

[0068] When the bracket 5 is attached to the housing 3, first, the tip part of the first support component 101 of the bracket 5 is in contact with the inclined approach surface 61. The inclined approach surface 61 is formed such that the height from the end of the inclined approach surface 61 in the separation direction Ddw becomes higher as it extends in the mounting direction Dup. Furthermore, the inclined approach surface 61 is formed by a continuous plane as a whole.

[0069] An angle formed between the pin forming side 10 and the inclined approach surface 61, namely an approach inclination angle α (with respect to Fig. 14), which is an inclination angle of the inclined approach surface 61 relative to the pin formation side 10, is, for example, less than or greater than 30 degrees in this embodiment. However, the approach inclination angle α may be greater than 30 degrees.

[0070] When the bracket 5 is attached to the housing 3, a portion of the tip part of the first support component 101 that first contacts the approaching inclined surface 61 depends on the relationship between the approaching inclination angle α and an inclination angle of the tip inclination 101a formed in the tip part of the first support component 101. When the approaching inclination angle α of the approaching inclined surface 61 of the first support pin 11 is larger than the inclination angle of the tip inclination 101a of the first support component 101, a possibility that the tip of the first support component 101 contacts the approaching inclined surface 61 is high.When the approach inclination angle α of the approach inclined surface 61 of the first support pin 11 is smaller than the inclination angle of the tip inclination 101a of the first support component 101, a possibility that the tip inclination 101a of the first support component 101 is in contact with the approach inclined surface 61 is high.

[0071] The two attachment holding surfaces 62 and 63 are formed to regulate the first support component 101 in moving further in the attachment direction from the fitted state in which the first holding pin 11 is fitted to the first through hole 111 of the first support component 101.

[0072] The two mounting support surfaces 62 and 63 can be seen when the first support pin 11 is viewed from the outside in the mounting direction, and are formed to be opposite to the inner peripheral surface 121 of the first through hole 111 when the first support pin 11 is fitted into the first through hole 111. Fig. 18 illustrates the state in which the inner peripheral surface 121 of the first through-hole 111 and each of the attachment holding surfaces 62, 63 of the first holding pin 11 are opposed to each other in the state in which the first holding pin 11 is fitted to the first through-hole 111.

[0073] When the carrier 5 mounted on the housing 3 moves further toward the housing 3 in the mounting direction, the inner peripheral surface 121 of the first through-hole 111 of the first support component 101 is in contact with one or both of the mounting support surfaces 62 and 63 of the first support pin 11, so that the movement is regulated.

[0074] Each of the attachment support surfaces 62 and 63 protrudes from the pin formation side 10, defining a fixed support inclination angle. The support inclination angle may be, for example, 90 degrees, but in this embodiment, it is less than 90 degrees. That is, the attachment support surfaces 62 and 63 are formed to incline at the fixed support inclination angle relative to the pin formation side 10. The support inclination angle can be set appropriately, but it is necessary to be at least larger than the approach inclination angle α of the inclined approach surface 61. In this embodiment, the support inclination angle is, for example, 60 degrees or more.

[0075] Furthermore, as is clearly shown in Fig. 12, Fig. 13 and Fig. As shown in Fig. 16, when the first support pin 11 is viewed from the outside in the mounting direction, the inclined approach surface 61 is positioned inside both ends of the first support pin 11 in the lateral direction. That is, the attachment support surface 62 extends from the end of the inclined approach surface 61 on the left side DL to the end of the first support pin 11 on the left side DL. Furthermore, the attachment support surface 63 extends from the end of the inclined approach surface 61 on the right side DR to the end of the first support pin 11 on the right side DR. Accordingly, when the bracket 5 is attached, the inner peripheral surface 121 of the first through-hole 111 is opposed to each of the attachment support surfaces 62 and 63 of the first support pin 11 within the comparatively wide distance.

[0076] In addition, as shown in the drawing above, Fig. 16, the height H1 of the upper part of each attachment support surface 62, 63 is the same as the height H2 of the upper part of the inclined approach surface 61. Accordingly, also in the height direction, the opposite width between each attachment support surface 62, 63 and the inner peripheral surface 121 of the first through hole 111 is fully ensured.

[0077] The upper plane 64 is a continuous plane formed by the upper part of the inclined approach surface 61 in the mounting direction, and is a plane parallel to the pin formation side 10. In this embodiment, the auxiliary slope 65 and the upper auxiliary plane 66 are formed to be even higher than the upper plane 64. Accordingly, when the bracket 5 is attached to the housing 3, in a process in which the tip part of the first support component 101 of the bracket 5 passes over the first support pin 11, the tip part of the first support component 101 can also be in contact with the auxiliary slope 65. However, the first support pin 11 is not limited to having the auxiliary slope 65 and the upper plane 66.

[0078] The separation holding surface 67 is visible when the first holding pin 11 is viewed from the outside in the separation direction, and is formed to be opposite to the inner peripheral surface 121 of the first through-hole 111 when the first holding pin 11 is fitted to the first through-hole 111. The lower drawing of Fig. 17 and Fig. 18 illustrates the state in which the inner peripheral surface 121 of the first through-hole 111 and the separation holding surface 67 of the first holding pin 11 are mutually opposed, in the state in which the first holding pin 11 is fitted to the first through-hole 111.

[0079] When the carrier 5 mounted on the housing 3 moves in the separation direction opposite to the mounting direction to the housing 3, the inner peripheral surface 121 of the first through hole 111 of the first support component 101 is in contact with the separation holding surface 67 of the first holding pin 11, so that the movement is regulated.

[0080] The separation holding surface 67 is projected from the pin forming side 10 to form a fixed separation inclination angle β (with respect to Fig. 14). The separation inclination angle β may be 90 degrees. However, in this embodiment, the separation inclination angle β is, for example, less than 90 degrees. That is, the separation holding surface 67 is formed to incline at the fixed separation inclination angle β relative to the pin forming side 10. The separation inclination angle β can be set appropriately, but it is necessary to be at least larger than the approach inclination angle α of the inclined approach surface 61. In this embodiment, the displacement inclination angle β is, for example, 60 degrees or more.

[0081] The concrete configuration of the first retaining pin 11 is explained, and the second retaining pin 21 and the third retaining pin 31 have the same configuration as the first retaining pin 11.

[0082] In addition, each of the support pins 11, 21, 31 has a predetermined area on the pin formation side from which the support pin protrudes. Namely, the predetermined cross-sectional area of ​​each of the support pins 11, 21, 31, which is parallel to the pin formation side and on the same plane as the pin formation side (hereinafter referred to as a shear cross-sectional area), is set to sufficiently withstand a normal external impact. That is, the shear cross-sectional area is ensured so that the support pin is not sheared off by a large load generated on the support pin by the beam 5 in the mounting direction due to an external normal area impact.

[0083] In addition, each retaining pin 11, 21, 31 can be formed to satisfy, for example, at least one of the two conditions A and B. a. The material strength of the retaining pin is greater than a stress assumed to be applied to the retaining pin when the impact is generated. b. The fatigue strength of the pin is higher than a stress assumed to be applied to the retaining pin by vibration of the vehicle.

[0084] The stress is determined by several factors, such as the total weight of the housing 3 containing the circuit board 150, the load, the installation position of the retaining pin, the number of retaining pins, and the positional relationship between the vehicle support part and the housing 3. Accordingly, for example, the stress applied to the retaining pin can be predicted by considering some of the factors. The material strength and fatigue strength required at least for the retaining pin can be calculated from the predicted value. The retaining pin can be provided to at least meet the strength. That is, the number of retaining pins for the housing and the shear cross-sectional area of ​​each retaining pin can be adjusted to meet at least one of the two conditions a and b. In addition, the two conditions a and b are examples, and there may be other various conditions.For example, the installation number of retaining pins and the shear cross-sectional area of ​​each retaining pin may be set to satisfy at least one of conditions A and B and also at least one other condition.

[0085] According to the housing fuse unit 1 of the embodiment, the following effects are obtained.

[0086] The first support pin 11 has the inclined approach surface 61, whose height increases as it extends from the front end to the rear end in the mounting direction. When the bracket 5 is mounted in the housing 3, the tip part of the first support component 101 of the bracket 5 is in contact with the inclined approach surface 61 of the first support pin 11 and passes over the first support pin 11. Accordingly, the mounting work of the bracket 5 can be made easy by moving the bracket 5 in the mounting direction relative to the housing 3.

[0087] In addition, the first support pin 11 has the attachment support surfaces 62 and 63. After the attachment of the carrier 5 is completed, even if the carrier 5 attempts to move further in the attachment direction, the movement is regulated by the attachment support surfaces 62 and 63. That is, even if the carrier 5 attempts to move further in the attachment direction, the movement is regulated by the inner peripheral surface 121 of the first through-hole 111 of the first support component 101 being in contact with the attachment support surfaces 62, 63 of the first support pin 11.

[0088] Furthermore, when the carrier 5 is mounted, the tip portion of the first support component 101 of the carrier 5 is in contact with the inclined approach surface 61. Accordingly, the mounting support surfaces 62, 63 can be restricted from being worn by the carrier 5 at the time of mounting work.

[0089] The same effect as the first retaining pin 11 is achieved by the second retaining pin and the third retaining pin 31.

[0090] Accordingly, the workability can be well maintained when attaching the bracket 5 to the housing 3, and the attachment can be properly maintained after the bracket 5 is normally attached to the housing 3.

[0091] In addition, as it is in Fig. 16, regarding the first support pin 11, the height H1 of the upper part of each attachment support surface 62, 63 is the same as the height H2 of the upper part of the inclined approach surface 61. Furthermore, in the lateral direction, the width of the inclined approach surface 63 (namely, the length in the lateral direction) is shorter than the width of the first support pin 11, thereby ensuring the width of each attachment side surface 62, 63 in the lateral direction. In addition, the support inclination angle of each attachment side 62, 63 is larger than the approach inclination angle α of the inclined approach surface 61. Specifically, in this embodiment, the support inclination angle is 60 degrees or more, while the approach inclination angle α is 30 degrees or less.

[0092] At this time, when the carrier 5 is attached to the housing 3, the inner peripheral surface 121 of the first through-hole 111 is opposite to each attachment support surface 62, 63 of the first support pin 11 within the comparable width. Accordingly, further defect penetration through the carrier 5 can be effectively controlled after the carrier 5 is attached to the housing 3.

[0093] The housing 3 may correspond to a housing for accommodating a substrate, and the first support component 101, the second support component 102, and the third support component 103 of the carrier 5 may correspond to a side support component. Each attachment support surface 62, 63 of the first support pin 11 may correspond to a first support surface. The attachment support surface 67 of the first support pin 11 may correspond to a second support surface.

[0094] The present disclosure is not limited to the above-mentioned embodiment and may be implemented with various modifications described below. (1) The shape of each retaining pin 11, 21, 31 formed on the housing is not limited to the shape shown in Fig. 12 and Fig. 13 is limited.

[0095] The bottom of each retaining pin 11, 21, 31 of the embodiment is shaped in a so-called rectangle with rounded corners, but may have other shapes (e.g., a perfect circle, an ellipse, a polygon).

[0096] Furthermore, in this embodiment, the inclined approach surface 61 is formed of a continuous flat plane as a whole, but may have a curved shape or a shape in which a flat plane and a curved surface are combined.

[0097] Furthermore, the rate of change in the height of the inclined approach surface 61 in the mounting direction is fixed in this embodiment, but is not limited to this. The inclined approach surface 61 can be formed by increasing the height, for example, by a quadratic function or a logarithmic function. That is, the rate of change in the height of the inclined approach surface 61 is changed continuously or in an implemented manner.

[0098] The shape of the inclined approach surface 61 is not limited to the approximately semicircular embodiment and may have other shapes. The width of the inclined approach surface in the lateral direction may be the same as that of the entire support pin in the lateral direction. The number of attachment support surfaces and the number of inclined approach surfaces are not limited to the number shown in the embodiment.

[0099] The height of the end of the inclined approach surface 61 in the separation direction is zero in the embodiment. That is, the lower end of the inclined approach surface 61 is positioned on the same plate as the pin formation side 10. Alternatively, the lower end of the inclined approach surface 61 may be positioned at a position higher than the pin formation side 10.

[0100] In addition, in the embodiment shown in the upper drawing of Fig. 16, the height H1 of the upper part of each attachment support surface 62, 63 is the same as the height H2 of the upper part of the inclined approach surface 61. Alternatively, the height H1 of at least one upper part of the attachment support surfaces 62, 63 may be higher than the height H2 of the upper part of the inclined approach surface 61.

[0101] (2) The cross-sectional shape of the through-hole for fitting the retaining pin formed on the bracket is not limited to the circular shape as in the embodiment. For example, if the peripheral shape of the bottom of the retaining pin is a polygon, the through-hole can have the corresponding polygon shape in the cross-sectional shape. The through-hole can have various types of shapes, so that the penetration of a defect through a bracket is properly restricted from the state when the bracket is attached to the housing.

[0102] (3) The number of support pins formed on a housing can be set appropriately. In this embodiment, three support pins 11, 21, 31 are formed on the housing 3, but the number of support pins can be one, two, four, or more. The support pin can be formed to fit at least one of the sides of the housing, and the number of support pins formed on one side can be set appropriately. The housing is not limited to the approximately rectangular parallelepiped shape and can have other shapes.

[0103] (4) In the embodiment, the three support components 101, 102, 103 having the same length are integrally fixed to the fixed component 100 as an example of the support, but are not limited to this. The support 5 is not limited to the fixed component 100 being parallel to the bottom surface 3a of the housing 3 in the state where the fixed component 100 is attached to the housing 3.

[0104] For example, the fixed component 100 may not be parallel to the bottom surface 3a of the housing 3 in the completed mounting state. The support components do not need to have the same length. For example, the length of the first support component 101 may be longer than that of the support components 102, 103, so that the fixed component 100 is not parallel to the bottom surface 3a of the housing 3 in the mounted state.

[0105] Furthermore, for example, there may be no fixed component 100, and the support components 101, 102, 103 may be independent of each other. This means that a carrier has at least one independent support component, and the at least one support component is independently attached to the housing. In this case, a support component is independently attached to the vehicle.

[0106] The number of support components is not limited to three. That is, in this embodiment, the housing 3 has three support pins 11, 21, 31, and the carrier 5 has the three support components corresponding to the housing 3. The number of support components can be adjusted to match the position of the support pins. For example, in a case where the number of support pins is one, the number of support components of the carrier can be one. For example, in a case where the number of support pins is two, the number of support components of the carrier can be two.

[0107] When three or more support components are used, at least two of them may be integrally secured. For example, in the embodiment, two of the three support components 101, 102, 103 may be integrally formed by the fixed component 100, and the other may be configured as an independent part.

[0108] (5) A function of one component in the embodiment may be distributed among multiple components, and functions of multiple components may be combined into one component. Part of the configuration of the embodiment may be removed, or it may be added to or replaced with at least one configuration of another embodiment. All of these modes containing a technical idea specified by the claims are included in the embodiment.

[0109] (6) The present disclosure is embodied in various forms other than the housing fuse unit 1, such as the housing 3 of the housing fuse unit 1 or the carrier 5 of the housing fuse unit 1.

Claims

[1] Housing fuse unit for a vehicle, comprising: a housing (3) in which a printed circuit board (150) is to be housed, and a support (5) configured to attach the housing (3) to the vehicle by approaching a lower surface (3a) of the housing (3) in a direction perpendicular to the lower surface (3a), wherein the housing (3) has a plurality of housing sides (6, 7, 8) perpendicular to the lower surface (3a), wherein at least one of the housing sides (6, 7, 8) has a retaining pin (11, 21, 31) projecting in a direction perpendicular to the housing side (6, 7, 8), the carrier (5) has a side support component (101, 102, 103) formed in a board shape in which a through hole (111, 112, 113) for fitting the retaining pin (11, 21, 31) is formed, the carrier (5) is made to approach the housing (3) in a state in which the side support component (101, 102, 103) is parallel to the housing side (6, 7, 8) having the retaining pin (11, 21, 31), the carrier (5) is configured to complete attachment to the housing (3) such that a tip part of the side support component (101, 102, 103) is in contact with the retaining pin (11, 21, 31) in an attachment direction and passes over the retaining pin (11, 21, 31) and that the retaining pin (11, 21, 31) is fitted into the through hole (111, 112, 113) of the side support component (101, 102, 103), wherein the retaining pin (11, 21, 31) has: an inclined approach surface (61) having a height that is increased when extending in the mounting direction, wherein the tip part of the side support component (101, 102, 103) is first in contact with the inclined approach surface (61) when the carrier (5) is attached to the housing (3), and at least one holding surface (62, 63) formed to be opposite to an inner peripheral surface (121, 122, 123) of the through-hole (111, 112, 113) and to regulate the side support component (101, 102, 103) from moving further in the mounting direction when the holding pin (11, 21, 31) is fitted to the through-hole (111, 112, 113) of the side support component (101, 102, 103), wherein the at least one holding surface (62, 63) is visible when viewed from the outside in the mounting direction, wherein the at least one holding surface (62, 63) is different from the inclined approach surface (61), the inner peripheral surface (121, 122, 123) of the through-hole (111, 112, 113) is in contact with the at least one holding surface (62, 63) when the carrier (5) is further moved in the mounting direction after the holding pin (11, 21, 31) is fitted into the through-hole (111, 112, 113), and a height of an upper part of the at least one holding surface (62, 63) is higher than or equal to a height of an upper part of the inclined approach surface (61). [2] Housing fuse unit according to claim 1, wherein the retaining pin (11, 21, 31) further has an upper plane (64) which is parallel to the housing side (6, 7, 8) and is formed continuously by the upper part of the inclined approach surface (61), and the height of the upper part of the at least one holding surface (62, 63) is the same as the height of the upper part of the inclined approach surface (61). [3] A housing fuse unit according to claim 1 or claim 2, wherein the inclined approach surface (61) is a flat plane, an angle of inclination defined between the at least one holding surface (62, 63) and the housing side (6, 7, 8) is constant, and the angle of inclination defined between the at least one holding surface (62, 63) and the housing side (6, 7, 8) is greater than an angle of inclination defined between the inclined approach surface (61) and the housing side (6, 7, 8). [4] A housing fuse unit according to any one of claims 1 to 3, wherein the inclined approach surface (61) is located inside both ends of the retaining pin (11, 21, 31) in a lateral direction parallel to the housing side (6, 7, 8) from which the retaining pin (11, 21, 31) protrudes and perpendicular to the mounting direction, and at least a part of the at least one holding surface (62, 63) is defined between a respective end of the inclined approach surface (61) and a respective end of the holding pin (11, 21, 31) in the lateral direction. [5] Housing fuse unit according to one of claims 1 to 4, wherein the at least one holding surface (62, 63) is defined as a first holding surface, the retaining pin further has a second retaining surface (67) formed to be opposite to an inner peripheral surface of the through-hole (111, 112, 113) and to regulate the side support component (101, 102, 103) from moving further in a direction opposite to the mounting direction when the retaining pin (11, 21, 31) is fitted to the through-hole (111, 112, 113) of the side support component (101, 102, 103), and the second retaining surface (67) is visible when viewed from the outside in the mounting direction. [6] Housing (3) for substrate accommodation, which houses a printed circuit board (150), comprising: a lower surface (3a) to which a support (5) is to be attached by approaching in a direction perpendicular to the lower surface (3a), a plurality of housing sides (6, 7, 8) perpendicular to the lower surface (3a), and a retaining pin (11, 21, 31) arranged on at least one of the housing sides (6, 7, 8) to protrude in a direction perpendicular to the housing side (6, 7, 8), wherein the carrier (5) has a side support component (101, 102, 103) formed in a plate shape corresponding to the retaining pin (11, 21, 31), the side support component (101, 102, 103) has a through hole (111, 112, 113) for fitting the retaining pin (11, 21, 31), the side support component (101, 102, 103) approaches the housing (3) for substrate accommodation in a state parallel to the housing side (6, 7, 8) having the holding pin (11, 21, 31), the retaining pin (11, 21, 31) is fitted to the through hole (111, 112, 113) of the side support component (101, 102, 103) so that a tip part of the side support component (101, 102, 103) is in contact with the retaining pin (11, 21, 31) in a mounting direction and passes over the retaining pin (11, 21, 31), wherein the retaining pin (11, 21, 31) has: an inclined approach surface (61) having a height that is increased when extending in the mounting direction, wherein the tip part of the side support component (111, 112, 113) is first in contact with the inclined approach surface (61) when the carrier (5) is attached to the housing (3), and at least one holding surface (62, 63) formed to be opposite to an inner peripheral surface (121, 122, 123) of the through-hole (111, 112, 113) and to regulate the side support component (101, 102, 103) in moving further in the mounting direction when the holding pin (11, 21, 31) is fitted to the through-hole (111, 112, 113) of the side support component (101, 102, 103), wherein the at least one holding surface (62, 63) is visible when viewed from the outside in the mounting direction, and wherein the at least one holding surface (62, 63) is different from the inclined approach surface (61), the inner peripheral surface (121, 122, 123) of the through-hole (111, 112, 113) is in contact with the at least one holding surface (62, 63) when the carrier (5) is further moved in the mounting direction after the holding pin (11, 21, 31) is fitted into the through-hole (111, 112, 113), and a height of an upper part of the at least one holding surface (62, 63) is higher than or equal to a height of an upper part of the inclined approach surface (61).

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