JP7407570B2 - Protective cover and power supply - Google Patents

Description

The present invention relates to a protective cover and a power supply device.

Patent Document 1 discloses a device that prevents electric shock caused by inadvertently touching the board by covering the mounting surface of electronic components, etc. on the board (power board) with a protective cover (power supply cover) made of an insulating material. has been done. In the device of Patent Document 1, the protective cover is fixed to the base member (frame member) with a plurality of screws.

Patent No. 4876063

However, in a device in which the protective cover is fixed with a plurality of screws as described above, it is necessary to operate the plurality of screws in order to attach or detach the protective cover to or from the base member during maintenance of the board or the like. Therefore, there is a problem in that it takes time just to remove the protective cover, and maintenance work for the board is labor-intensive. Further, when operating a screw, there is a risk that the screw may be dropped into the device and lost, or that the screw may short-circuit a circuit within the device. Furthermore, there is a risk that the tool for manipulating the screw may damage the device or that the tool may short-circuit a circuit within the device.

The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide a protective cover and a power supply device that allow the protective cover to be easily attached and detached without using fastening members such as screws.

One aspect of the present invention is a protective cover used for a power supply device including a substrate, a connector provided on a first main surface of the substrate, and a protective cover, the protective cover provided on the first main surface a first plate portion having a connector insertion hole through which the connector is inserted in a first direction along the first principal surface; a second plate portion facing the first plate portion in the first direction; a connecting part extending to connect the first plate part and the second plate part, and between the first plate part and the second plate part in a state where the connector is inserted into the connector insertion hole. is attached by arranging the connector to cover the first main surface of the board, and the distance between the first plate part and the second plate part in the first direction is such that the distance between the connector in the first direction is It is a protective cover that is smaller than the dimensions.

Another aspect of the present invention includes a substrate, a connector provided on a first main surface of the substrate, and the protective cover, and the protective cover has the connector inserted into the connector insertion hole. The power supply device is attached by arranging the connector between the first plate part and the second plate part to cover the first main surface of the board.

According to the present invention, the protective cover can be easily attached and detached without using fastening members such as screws.

FIG. 1 is a perspective view showing main parts of a power supply device according to an embodiment of the present invention. FIG. 3 is a front view showing main parts of the power supply device. 3 is a sectional view taken along the line III-III in FIG. 2. FIG. 3 is a sectional view taken along the line IV-IV in FIG. 2. FIG. FIG. 3 is a perspective view showing a protective cover included in the power supply device. FIG. 3 is an enlarged sectional view showing a state before the protective cover is removed from the board and the connector. FIG. 3 is an enlarged cross-sectional view showing the process of removing the protective cover from the board and the connector.

An embodiment of the present invention will be described below with reference to FIGS. 1 to 7. In this embodiment, for convenience of explanation, the directions shown by the up-down, left-right, and front-back arrows shown in FIG. As shown in FIGS. 1 to 3, the power supply device 1 according to the present embodiment includes a base portion 2, a board 3, four fixtures 4, a plurality of resistors 5, a connector 6, and a component 7. , and a protective cover 8.

The base portion 2 is, for example, a casing of the power supply device 1 or a frame fixed inside the casing, and includes a plate-shaped portion having a flat surface 2a.

The board 3 is a rectangular printed wiring board having a wiring pattern (not shown) on a first main surface 3a (rear surface) and a second main surface 3b (front surface) facing oppositely to each other. The wiring pattern of the board 3 constitutes a circuit of the power supply device 1 together with a resistor 5 and the like, which will be described later. The substrate 3 is arranged to face the flat surface 2a of the base portion 2 so that the second main surface 3b faces the flat surface 2a with a gap therebetween.

As shown in FIG. 1, the four fixtures 4 are each attached to the flat surface 2a of the base portion 2. The four fixtures 4 are provided in a state in which they are lined up at intervals in the left-right direction and the up-down direction, respectively, on the flat surface 2a. The two fixtures 4 arranged in the vertical direction are arranged corresponding to the positions of both ends of the substrate 3 in the vertical direction. Note that the number and arrangement of fixtures 4 are not limited to those described above, and may be changed as appropriate. The four fixtures 4 fix the substrate 3 to the base portion 2 so as to hold the substrate 3 facing the base portion 2 as described above.

As shown in FIG. 4, each of the four fixtures 4 includes a pedestal portion 44 attached to the flat surface 2a of the base portion 2, a support portion 41 that supports the second main surface 3b of the substrate 3, and a support portion 41 that is inserted into the substrate 3. and a claw part 43 that sandwiches the board 3 with the support part 41.

The support portion 41 is formed into a rod shape extending rearward from the rear surface of the pedestal portion 44 . The support portion 41 has a flat end surface 41a at its end in the extending direction. The support portion 41 supports the substrate 3 at a distance from the flat surface 2a of the base portion 2 by bringing the second main surface 3b of the substrate 3 into surface contact with the distal end surface 41a.

The insertion portion 42 is formed into a rod shape extending from the distal end surface 41a of the support portion 41 in the extending direction (rearward) of the support portion 41. The size of the insertion portion 42 viewed from the extending direction of the support portion 41 is smaller than the size of the distal end surface 41a of the support portion 41. By inserting the insertion portion 42 into the substrate 3, movement of the substrate 3 in the vertical and horizontal directions along the flat surface 2a of the base portion 2 with respect to the base portion 2 is restricted.

The claw portion 43 has a first arm portion 431, a second arm portion 432, and a projection portion 433. The first arm portion 431 extends away from the outer periphery of the support portion 41 in the radial direction of the support portion 41 . The second arm portion 432 extends from the distal end of the first arm portion 431 in the same rear direction as the support portion 41 and the insertion portion 42 . The second arm portion 432 is located away from the support portion 41 and the insertion portion 42 in the radial direction thereof. The second arm portion 432 extends further rearward than the distal end surface 41a of the support portion 41. The first and second arm portions 431 and 432 are elastically deformable so that the distal end portion of the second arm portion 432 approaches or separates from the insertion portion 42 in the radial direction. The protruding portion 433 is formed on a surface of the distal end portion of the second arm portion 432 that faces the outer circumferential surface of the insertion portion 42 . The protruding portion 433 can be separated from the supporting portion 41 and the insertion portion 42 in the radial direction as the first and second arm portions 431 and 432 are elastically deformed.

Each of the four fixtures 4 inserts the insertion part 42 into the board 3 from the second main surface 3b side of the board 3, brings the second main surface 3b into surface contact with the tip surface 41a of the support part 41, and By locking the protrusion 433 of the claw portion 43 with the first main surface 3a, the edge of the substrate 3 is sandwiched between the distal end surface 41a and the protrusion 433, and the substrate 3 is fixedly supported. When removing the board 3 from the base part 2, the first and second arm parts 431 and 432 of the claw part 43 are elastically deformed so as to separate the projection part 433 of the claw part 43 from the edge of the board 3. Just let it happen. In this way, the fixture 4 removably fixes the substrate 3 to the base portion 2.

As shown in FIGS. 2 and 3, the plurality of resistors 5 are mounted on the second main surface 3b side of the substrate 3, connected to the wiring pattern of the substrate 3, and constitute a circuit of the power supply device 1. Each of the plurality of resistors 5 has two leads 51 for connection to the wiring pattern of the substrate 3. The resistor 5 is connected to the wiring pattern of the board 3 by inserting each lead 51 into the board 3 from the second main surface 3b side of the board 3 and soldering. Therefore, the tip of each lead 51 protrudes rearward from the first main surface 3a of the substrate 3. The plurality of resistors 5 are arranged side by side in the left-right direction on the second main surface 3b, with the two leads 51 arranged in the vertical direction. In this embodiment, eight resistors 5 are arranged side by side in the left-right direction on the second main surface 3b. Note that a plurality of electronic components (not shown) are also mounted on the first main surface 3a and the second main surface 3b of the substrate 3, respectively.

As shown in FIGS. 1 to 3, the connector 6 is provided on the first main surface 3a side of the substrate 3, and is connected to the wiring pattern of the substrate 3 (the circuit of the power supply device 1). The connector 6 includes a first connector 61 mounted on the first main surface 3a of the substrate 3, and a second connector 62 detachably connected to the first connector 61.

The first connector 61 includes a rectangular parallelepiped-shaped first housing 612 and a plurality of connector terminals (contacts) fixed inside the first housing 612. The first housing 612 has a connection opening 611 that opens upward. One end of each of the plurality of connector terminals is disposed in the internal space of the first housing 612 (space communicating with the connection opening 611), and the other end of the connector terminal is arranged from the front wall of the first housing 612. protruding forward. The first connector 61 is connected to the wiring pattern of the board 3 by inserting the other end of the connector terminal into the board 3 from the first main surface 3a side of the board 3 and soldering. At this time, the first connector 61 is mounted on the first main surface 3a with the outer surface of the front wall of the first housing 612 being brought close to the first main surface 3a. The first connector 61 is mounted on the upper edge (near the upper end) of the first main surface 3a, and the upper end side of the first housing 612 provided with the connection opening 611 extends upward from the first main surface 3a. It is in an overhanging state.

The second connector 62 includes a rectangular parallelepiped-shaped second housing 622 and a plurality of connector terminals (contacts) fixed inside the second housing 622. The second housing 622 has a convex fitting convex portion 621 that can be fitted into the first housing 612 from the connection opening 611 of the first connector 61 . In the second connector 62, when the fitting protrusion 621 is fitted into the first housing 612 of the first connector 61, each connector terminal of the second connector 62 and each connector terminal of the first connector 61 come into contact with each other. , the second connector 62 and the first connector 61 are electrically connected. The second connector 62 has the other end of the plurality of connector terminals opposite to the one end that contacts the connector terminal of the first connector 61 connected to the electrical wiring 9 connected to the power supply source 10 . In the power supply device 1, power from the power supply source 10 is supplied to the plurality of resistors 5 and the plurality of resistors mounted on the substrate 3 via the electrical wiring 9, the second connector 62, the first connector 61, and the wiring pattern of the substrate 3 It is now supplied to many electronic components.

The component 7 is provided at a position spaced below the first connector 61 on the first main surface 3a of the board 3. The component 7 is provided at a position below the plurality of resistors 5. On the first main surface 3a of the substrate 3, the first connector 61, the plurality of resistors 5 (leads 51, 51), and the component 7 are arranged in order from the top. The component 7 has a rectangular box shape having an upper wall 71, a rear wall 72, and left and right side walls 73 formed by bending a flat plate member, and extends rearward from the first principal surface 3a. will be established.

The upper wall portion 71 is formed in a plate shape extending rearward from the first main surface 3 a of the substrate 3 . In the upper wall portion 71, two cover insertion holes 711 that penetrate in the vertical direction are formed side by side in a position on the front end side near the first main surface 3a of the substrate 3. The left and right cover insertion holes 711 are rectangular through holes, respectively, and are adjacent to the left and right side walls 73. The left and right cover insertion holes 711 are respectively arranged in the upper wall portion 71 at positions opening toward the front side (board 3 side) and the left and right side wall portions 73 side. The rear wall portion 72 is formed into a plate shape extending downward from the rear end portion of the upper wall portion 71 . The left and right side walls 73 are formed into plate shapes that extend downward from the left and right ends of the upper wall 71 and the rear wall 72. Part 7 has no lower wall and is open downward (see FIG. 3).

As shown in FIG. 5, the protective cover 8 is formed by bending or cutting a flat plate of resin such as polycarbonate, and has electrical insulation and flexibility. The protective cover 8 includes a first plate part 81, a second plate part 82, a connecting part 83, and a third plate part 84. The first plate portion 81 is formed into a flat plate shape extending in the front, rear, left and right directions. A rectangular connector insertion hole 811 is formed in the first plate portion 81 and extends vertically. The connector insertion hole 811 is arranged in the first plate portion 81 at a position that opens toward the rear side (a position adjacent to the connecting portion 83). The connector insertion hole 811 has dimensions in the front, rear, left and right directions that allow the first connector 61 (first housing 612) to be inserted into the connector insertion hole 811 from the connection opening 611 side. Further, the connector insertion hole 811 has dimensions in the front, rear, left and right directions that are slightly spaced from the outer peripheral surface of the first housing 612 when the first connector 61 is inserted into the connector insertion hole 811.

The connecting portion 83 is formed into a flat plate shape extending downward from the rear end portion of the first plate portion 81 . The left-right dimension of the connecting portion 83 is longer than the left-right dimension of the first plate portion 81. Both left and right end portions of the connecting portion 83 extend and overhang in the left-right direction than both left and right end portions of the first plate portion 81, respectively. The vertical dimension of the connecting portion 83 is shorter than the dimension of the first connector 61 in the fitting direction with the second connector 62 in the first housing 612 (the dimension in the vertical direction shown in FIG. 2).

The second plate portion 82 is formed into a flat plate shape extending forward from the lower end portion of the connecting portion 83 . The left-right dimension of the second plate portion 82 is the same length as the left-right dimension of the connecting portion 83. The longitudinal dimension of the second plate part 82 is shorter than the longitudinal dimension of the connector insertion hole 811 of the first plate part 81 (the longitudinal dimension of the first housing 612 of the first connector 61 shown in FIG. 1). The upper surface of the second plate part 82, the lower surface of the first plate part 81, and the connector insertion hole 811 are arranged to face each other. Since the vertical dimensions of the connecting portion 83 are as described above, the distance between the upper surface of the second plate portion 82 and the lower surface (connector insertion hole 811) of the first plate portion 81 is the same as that of the first housing of the first connector 61. 612 in the fitting direction with the second connector 62 (the vertical dimension shown in FIG. 2). The first plate portion 81, the connecting portion 83, and the second plate portion 82 are U-shaped when viewed from the left and right directions.

The third plate part 84 is formed into a flat plate shape extending downward from the front end of the second plate part 82 . The left-right dimension of the third plate part 84 is the same length as the left-right dimension of the connecting part 83 and the second plate part 82. The vertical dimensions of the third plate portion 84 are slightly shorter than the distance between the lower surface of the first connector 61 mounted on the board 3 and the upper surface of the upper wall portion 71 of the component 7 .

The protective cover 8 includes two flat plate-shaped left and right protrusions 85 extending downward from the lower end (tip) of the third plate part 84, and two flat plate-shaped left and right bent parts extending rearward from the lower ends of the two protruding parts 85. It further includes a section 86. The right protrusion 85 is disposed at the right end of the lower end of the third plate 84 . The left protrusion 85 is disposed at the lower end of the third plate part 84 to the left of the right protrusion 85 with an interval therebetween. The two protrusions 85 have left and right dimensions that allow them to be inserted into the two cover insertion holes 711 of the component 7, respectively. Furthermore, the spacing between the two protrusions 85 corresponds to the spacing between the two cover insertion holes 711 of the component 7 . The vertical dimensions of the two protrusions 85 are each shorter than the vertical dimensions of the left and right side walls 73 of the component 7 (see FIG. 1). The left and right dimensions of the two bent portions 86 are the same length as the left and right dimensions of the two protrusions 85, respectively. The longitudinal dimensions of the two bent portions 86 are each slightly shorter than the longitudinal dimensions of the left and right side walls 73 of the component 7 (see FIG. 3).

The protective cover 8 configured as described above is attached to the first connector 61 with the second connector 62 removed. Specifically, the U-shaped portions of the first plate part 81, the connecting part 83, and the second plate part 82 are elastically deformed by applying force so that the distance between the first plate part 81 and the second plate part 82 is widened. Then, the upper end side of the first connector 61 (first housing 612) protruding upward from the first main surface 3a of the board 3 is inserted into the connector insertion hole 811 from the lower surface side of the first plate part 81. The protective cover 8 is attached to the first connector 61 by placing the first plate part 81 on the upper end of the board 3 and further arranging the second plate part 82 on the lower surface side of the first housing 612.

When the protective cover 8 is attached to the first connector 61 in this way, as shown in FIGS. The first housing 612 is in a state in which it protrudes above the first plate part 81, and the lower side of the first housing 612 is located in the space between the first plate part 81 and the second plate part 82. The rear surface of the lower part of the first housing 612 is in a state close to and opposed to the front surface of the connecting part 83, and the lower surface of the first housing 612 is in a state to be closely opposed to the top surface of the second plate part 82. The front end of the first plate part 81 extends forward (towards the base part 2) of the second main surface 3b of the board 3, and the lower surface of the first plate part 81 abuts the upper end of the board 3. The first plate portion 81 is placed on the upper end portion of the substrate 3 (see FIG. 3). The front end 811b of the connector insertion hole 811 in the first plate portion 81 is positioned at a distance from the front surface of the first housing 612 (see FIG. 3). The left and right end portions of the first plate portion 81 are in a state where they are close to and opposite to the left and right side surfaces of the claw portions 43 of the two left and right fixing tools 4 provided on the upper end side of the board 3, respectively. The connecting portion 83 is disposed on the rear side of the insertion portion 42 of the two right and left fixing tools 4 provided on the upper end side of the board 3 and the protrusion portion 433 of the claw portion 43, and the front surface of the connecting portion 83 is located on the rear side of the insertion portion 42 of the left and right fixing tool 4 provided on the upper end side of the board 3. It will be in a state where it faces the tip and the protrusion 433. The rear sides of the two fixtures 4 are covered by the connecting portion 83 (see FIG. 4).

As described above, since the first housing 612 is inserted into the connector insertion hole 811 of the first plate part 81, the protective cover 8 is moved in the front and rear and left and right directions with respect to the first connector 61 and the board 3. In this case, the end of the connector insertion hole 811 comes into contact with the outer circumferential surface of the first housing 612, so that movement of the protective cover 8 in the front-back and left-right directions is restricted, although there is a certain amount of play. In addition, since the left and right ends of the first plate part 81 are sandwiched between the left and right two fixing tools 4 and are closely opposed to each other, when the protective cover 8 is moved in the left and right direction, the left and right ends of the first plate part 81 are Movement of the protective cover 8 in the left-right direction is also restricted by the end portions coming into contact with the left and right fixtures 4 . Since the upper surface of the second plate part 82 is in a state close to and opposed to the lower surface of the first housing 612, when the protective cover 8 is moved upward relative to the first connector 61 and the board 3, the second plate part 82 As the upper surface comes into contact with the lower surface of the first housing 612, upward movement of the protective cover 8 is restricted, although there is a certain amount of play. By fitting and connecting the second connector 62 to the first connector 61 to which the protective cover 8 is attached, the protective cover 8 cannot be removed from the first connector 61.

When the protective cover 8 is attached to the first connector 61 as described above, the front surface of the third plate part 84 faces the first main surface 3a of the board 3, and the first main surface 3a It becomes covered by. The third plate portion 84 is arranged on the rear side of the area where the leads 51 of the plurality of resistors 5 are arranged on the first main surface 3a, and is a portion of the plurality of leads 51 that protrudes rearward from the first main surface 3a. is now covered by the third plate portion 84.

Furthermore, when the protective cover 8 is attached to the first connector 61, the two left and right protrusions 85 are inserted into the component 7 through the two cover insertion holes 711 of the component 7, respectively. When the two left and right protrusions 85 are inserted into the component 7, the left and right side portions of the two protrusions 85 are in a state in which they closely face the end of the cover insertion hole 711 of the component 7 and the inner surface of the side wall 73. . Also, the left and right side portions of the two bent portions 86 are in a state in which they are closely opposed to the inner surface of the side wall portion 73 of the component 7, and the tip portions of the two bent portions 86 are in a state in which they are closely opposed to the inner surface of the rear wall portion 72 of the component 7. becomes. In this way, the two left and right protrusions 85 and the bent part 86 are inserted into the component 7, so when the protective cover 8 is moved in the left and right direction with respect to the board 3, the two protrusions 85 The left and right side portions contact the end of the cover insertion hole 711 and the inner surface of the side wall portion 73, and the left and right side portions of the two bent portions 86 contact the inner surface of the side wall portion 73, so that protection is achieved although there is a certain amount of play. Movement of the cover 8 in the left and right direction is restricted. Further, when the protective cover 8 is moved backward with respect to the board 3, the tips of the two bent parts 86 come into contact with the inner surface of the rear wall part 72, so that although there is a certain play, the protective cover 8 Movement to the rear is restricted.

To remove the protective cover 8 from the first connector 61, first, the second connector 62 is removed from the first connector 61. Then, force is applied so that the distance between the first plate part 81 and the second plate part 82 is widened, and the U-shaped parts of the first plate part 81, the connecting part 83, and the second plate part 82 are elastically deformed, The protective cover 8 is inserted into the connector insertion hole 811 so that the first connector 61 (first housing 612), which is disposed in the space between the first plate part 81 and the second plate part 82, is pulled out from the space. is moved upward relative to the first connector 61 and the board 3. Specifically, as shown in FIGS. 6 and 7, by lifting the front end of the first plate part 81 in the direction of the arrow D1, the first plate part 81, the connecting part 83, the second plate part 82, and the third plate part 81 are separated. The U-shaped portions of the first plate portion 81, the connecting portion 83, and the second plate portion 82 are elastically deformed using the connecting portions of the three plate portions 84 as fulcrums. By elastically deforming the protective cover 8 in this way and moving it upward, the first connector 61 is pulled out from the space between the first plate part 81 and the second plate part 82, and the two cover insertion holes of the component 7 are removed. The protective cover 8 is removed from the first connector 61 by pulling out the two protruding parts 85 and the bent part 86 inserted into the part 7 through the parts 711 from inside the part 7.

As explained above, according to the present embodiment, the protective cover 8 can be attached to the first main surface 3a of the substrate 3 using the first connector 61 without having to screw the protective cover 8 to the substrate 3. Can be kept covered. Therefore, when removing the protective cover 8, it is not necessary to operate a plurality of screws as in the conventional case, so maintenance work for the board 3 can be performed efficiently. Furthermore, since the screws are not fixed, there is no risk of the screws falling into the device and being lost, or of the screws causing a short circuit in the device. Furthermore, there is no risk that the tool for manipulating the screw will damage the device or that the tool will cause a short circuit in the device.

Furthermore, since the protective cover 8 is elastically deformable as described above, the first plate part 81 can be moved relative to the connecting part 83 and the second plate part 82, and the first connector 61 can be moved to the first plate part 81. It becomes possible to easily insert and remove the U-shaped portions of the portion 81, the connecting portion 83, and the second plate portion 82. Therefore, the protective cover 8 can be easily attached to and detached from the substrate 3 compared to the case of screwing. Moreover, since the protective cover 8 cannot be removed from the first connector 61 unless the protective cover 8 is elastically deformed, it is possible to prevent the protective cover 8 from accidentally coming off from the first connector 61.

In this embodiment, the second connector 62 connected to the electrical wiring 9 connected to the power supply source 10 is fitted and connected to the first connector 61 inserted into the connector insertion hole 811 of the protective cover 8 . Therefore, when the second connector 62 is connected to the first connector 61, the protective cover 8 cannot be removed from the first connector 61 even if the protective cover 8 is elastically deformed as shown in FIG. Can not. Therefore, by connecting the second connector 62 to the first connector 61, power from the power supply source 10 is supplied to the plurality of resistors 5 mounted on the board 3, and the resistors 5 protruding from the first main surface 3a of the board 3 are supplied with power from the power supply source 10. Even if electricity is flowing through the tips of the leads 51 of the plurality of resistors 5 and the wiring pattern of the board 3, these are covered by the protective cover 8, so that the operator cannot touch the tips of the leads 51. It is possible to reliably prevent accidental touching of parts or wiring patterns.

In this embodiment, the connector insertion hole 811 of the protective cover 8 is formed at a position in contact with the connecting portion 83 in the first plate portion 81 . Therefore, the rear surface of the first connector 61 (first housing 612) inserted into the connector insertion hole 811 can be made to closely face the front surface of the connecting portion 83. Thereby, the protective cover 8 attached to the first connector 61 can be prevented from moving (rattling) in the front-back direction with respect to the board 3 and the first connector 61. In particular, movement of the protective cover 8 in the direction toward the first main surface 3 a of the substrate 3 can be suppressed by the contact between the rear surface of the first housing 612 and the front surface of the connecting portion 83 .

In this embodiment, the connecting portion 83 of the protective cover 8 attached to the first connector 61 allows the two left and right fixtures 4 provided on the upper end side of the board 3 to be connected to the rear of the first main surface 3a of the board 3. The part of the fixture 4 located on the side (the protrusion 433 of the claw part 43) is covered and hidden. Therefore, it is possible to prevent the board 3 from being accidentally removed from the base portion 2 before the protective cover 8 is removed from the first connector 61. In a situation where the second connector 62 is connected to the first connector 61 and power is supplied to the wiring pattern of the board 3 or the plurality of resistors 5, the protective cover 8 comes off from the first connector 61 as described above. There is no such thing. By covering the fixture 4 with the protective cover 8 in such a situation, the protective cover 8 can prevent the operation of removing the board 3 from the base portion 2.

In this embodiment, when the protective cover 8 is attached to the first connector 61, the two protrusions 85 of the protective cover 8 are inserted into the component 7 through the two cover insertion holes 711 of the component 7, and the two protrusions 85 are inserted into the component 7 through the two cover insertion holes 711 of the component 7. The distal end of the portion 86 is configured to closely face the inner surface of the rear wall portion 72 of the component 7. Therefore, when the protective cover 8 is moved in the left-right direction with respect to the board 3, the left and right side parts of the two protrusions 85 come into contact with the end of the cover insertion hole 711 and the inner surface of the side wall part 73. Movement of the protective cover 8 in the left-right direction can be restricted. Further, when the protective cover 8 is moved backward with respect to the board 3, the tips of the two bent portions 86 come into contact with the inner surface of the rear wall portion 72, thereby restricting the backward movement of the protective cover 8. can do. Therefore, it is possible to suppress the protective cover 8 from moving (rattling) relative to the substrate 3.

Although the embodiments according to the present invention have been described above, the present invention is not limited to the above-described embodiments, and various changes can be made without departing from the gist of the present invention.

In the present invention, the first connector 61 does not need to be mounted on the board 3 in a state of protruding outward from the edge of the board 3. That is, the first connector 61 may be arranged such that the entire first housing 612 is accommodated on the first main surface 3a of the board 3. However, in this case, if the first connector 61 is mounted on the first main surface 3a with a space between the surface of the first housing 612 that faces the first main surface 3a and the first main surface 3a. good. By mounting the first connector 61 in this manner, the first connector 61 can be inserted into the connector insertion hole 811 of the protective cover 8 and the protective cover 8 can be attached to the first connector 61.

In the present invention, the protective cover 8 may be attached with the second connector 62 inserted into the connector insertion hole 811. In this case, when attaching and detaching the second connector 62 to and from the first connector 61, the protective cover 8 can be easily attached and detached by inserting and removing the second connector 62 from the connector insertion hole 811. . Further, when the second connector 62 is inserted into the connector insertion hole 811 of the protective cover 8, the protective cover 8 may be made of a material that does not deform elastically.

In the present invention, the connector insertion hole 811 of the protective cover 8 may be formed at a position away from the connecting part 83 in the first plate part 81. Furthermore, the protective cover 8 may have one or three or more protrusions 85. In that case, the component 7 may also be configured to have a number of cover insertion holes 711 corresponding to the protrusions 85 of the protective cover 8. The protective cover 8 does not need to have the bent portion 86. The protective cover 8 may have a through hole in the third plate portion 84 through which an electronic component or the like mounted on the first main surface 3a of the substrate 3 is inserted.

In the present invention, a hook portion for hooking onto the edge of the substrate 3 may be formed at the front end portion of the first plate portion 81 of the protective cover 8 . The hook portion may be, for example, a projection projecting downward from the front end portion of the first plate portion 81. Such a hook portion can restrict movement of the protective cover 8 with respect to the substrate 3 in a direction away from the first main surface 3a (backward). Further, when a protrusion is provided on the rear surface of the first connector 61 (first housing 612), a through hole through which the protrusion is inserted may be formed in the connecting portion 83 of the protective cover 8. Alternatively, a claw portion that is engaged with the protrusion may be formed on the front surface of the connecting portion 83.

In the present invention, the connecting portion 83 of the protective cover 8 may have a horizontal dimension shorter than the horizontal dimension of the first and second plate portions 81 and 82. In that case, the first and second plate parts 81 and 82 may be connected by a plurality of connecting parts 83 arranged in the left-right direction. The protective cover 8 is not limited to a resin material, and may be any insulating material.

In the present invention, the fixture 4 for fixing the substrate 3 to the base portion 2 may be, for example, a screw. In this case, the base portion 2 may be formed with a female thread that engages with the shaft portion of a screw passed through the substrate 3. Further, the protective cover 8 may cover the heads of the screws located on the first principal surface 3a side of the substrate 3. The component 7 provided on the first main surface 3a of the substrate 3 only needs to have a cover insertion hole 711 into which the protrusion 85 of the protective cover 8 can be inserted, and the component 7 provided on the first main surface 3a of the substrate 3 may be an existing component provided in advance on the first main surface 3a. It may be.

1 Power supply device 2 Base part 3 Board 3a First main surface 3b Second main surface 4 Fixture 5 Resistor 6 Connector 61 First connector 62 Second connector 7 Component 711 Cover insertion hole 8 Protective cover 81 First plate part 811 Connector Insertion hole 82 Second plate part 83 Connecting part 83a Opposing surface 84 Third plate part 85 Projection part 86 Bent part

Claims (7)

A protective cover for use in a power supply device including a substrate, a connector provided on a first main surface of the substrate, and a protective cover ,
a first plate portion having a connector insertion hole through which a connector provided on the first main surface is inserted in a first direction along the first main surface; and a second plate portion facing the first plate portion in the first direction. comprising a plate portion, and a connecting portion extending in the first direction and connecting the first plate portion and the second plate portion,
The connector is inserted into the connector insertion hole and the connector is disposed between the first plate part and the second plate part to be attached and cover the first main surface of the board,
A protective cover in which a distance between the first plate part and the second plate part in the first direction is smaller than a dimension of the connector in the first direction. The protective cover according to claim 1, wherein at least a portion of the first plate portion, the second plate portion, and the connecting portion are elastically deformable. The protective cover according to claim 1 or 2, wherein the connector insertion hole is formed in a position of the first plate portion that contacts the connecting portion. A board, a connector provided on a first main surface of the board, and a protective cover according to any one of claims 1 to 3,
The protective cover is attached by placing the connector between the first plate part and the second plate part with the connector inserted into the connector insertion hole, and is attached to the first main surface of the board. power supply covering. a base portion disposed opposite to a second main surface of the substrate facing opposite to the first main surface;
A fixture for fixing the substrate to the base part,
The power supply device according to claim 4, wherein the protective cover covers a portion of the fixture located on the first main surface side. The protective cover includes a third plate portion extending from the second plate portion in the first direction on the opposite side of the first plate portion, and a protrusion extending from the tip of the third plate portion in the extending direction of the third plate portion. and,
A component having a cover insertion hole through which the protrusion is inserted in the first direction is provided on the first main surface of the substrate,
The power supply device according to claim 4 or 5, wherein the protruding portion is inserted into the cover insertion hole of the component. The protective cover includes a bent portion extending from a tip of the protrusion in a direction intersecting an extending direction of the protrusion,
The power supply device according to claim 6, wherein a tip of the bent portion is disposed close to an inner surface of the component with the protruding portion inserted into the cover insertion hole.

Images