JP2007068275A - How to remove cassette block and electrical parts - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cassette block which can simplify the work for removing an electric component. <P>SOLUTION: The cassette block 3 having a portion 31 for attaching electric components 4A and 4B, and a body member 30 for mounting the electric component attaching portion 31 is provided with a through hole 32 penetrating the body member 30 and having an opening on one side opposing the outer edge portions of the electric components 4A and 4B. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a cassette block mounted on an automobile or the like as a moving body and a method for removing an electrical component.

  In general, automobiles as moving bodies are equipped with a wide variety of electronic devices such as lamps such as head lamps and tail lamps, and motors such as motors for starter motors and air conditioners.

  In order to supply electric power to the various electronic devices described above, the automobile has arranged junction blocks at appropriate locations. The junction block is composed of various electric circuit units such as a large number of fuses and relays.

  Note that the junction block may include a fuse, a relay, a bus bar, and the like, and thus is also referred to as a fuse block, a relay box, or an electrical connection box. In the present specification, the above-described fuse block, relay box, and junction block are collectively referred to as an electrical connection box.

  The electrical junction box includes a box body that forms an outer shell, and a terminal fitting. On the upper surface of the box body, for example, a plurality of mounting portions on which electrical components such as the relays, fuses and fusible links described above are mounted are provided. Moreover, the connector of the wire harness routed by the motor vehicle mentioned above fits in the lower surface of a box main body, for example.

  The wire harness includes a plurality of electric wires and a connector attached to an end portion of the electric wires. The connector is fitted to various electronic devices mounted on the automobile described above and the box body described above. Furthermore, the box body accommodates a bus bar or the like for connecting various electrical components mounted on the mounting portion described above and the terminals of the connector of the wire harness according to a predetermined pattern.

  The terminal fitting is made of a thick conductive sheet metal, and is integrally provided with a flat electric contact portion and an electric wire connecting portion. The electrical contact portion is provided with a hole or notch through which a threaded portion of the bolt can pass. The electrical contact portion is attached to the box body described above, for example, by a bolt passing through the threaded portion in the hole or notch being screwed into the upper surface of the box body.

  The electric wire connecting portion is bent from the electric contact portion described above and is erected from the electric contact portion. The electric wire connecting part includes a caulking piece or the like for caulking an electric wire connected to a power source or the like. An electric wire connection part crimps an electric wire with a crimping piece, and connects with the core wire of this electric wire.

  In the electrical connection box described above, the electrical contact portion of the terminal fitting to which the electric wire is attached is attached to the upper surface of the box body described above with a bolt. At this time, the electric wire connecting portion of the terminal fitting and the electric wire attached to the electric wire connecting portion are kept along the outer wall surface of the box body without being housed in the box body.

  Then, a desired electrical component is mounted on each mounting portion, and the connector of the wire harness is fitted to the lower surface of the box body. Thus, the electrical junction box described above is assembled. The electrical junction box supplies power from a power source supplied from a power source or the like to the electronic device described above via a fusible link, a wire of a wire harness, or the like.

Further, as the above-described electrical junction box, one that can easily remove an electrical component from the mounting portion shown in Patent Document 1 is known. This electrical junction box is provided with a concave portion on the outer surface side of the main body case, and an attachment portion 13 for attaching an electrical component is erected on the bottom surface of the concave portion 12. And a latching member is provided in the side surface of an attaching part so that a displacement is possible, and the press part of a latching member is arrange | positioned in a recessed part. In addition, it is described that the engagement portion provided on the locking member and the engaged portion provided on the electrical component are released by a long jig (see Reference 1).
JP 2000-270442 A

  As described above, in the electrical junction box, it is known to use a long jig or the like to remove the electrical component, but the electrical component is installed in a recessed position in the case body of the electrical junction box. When the member is provided, it is difficult to remove the electrical component even if a long jig or the like is used. In particular, when a plurality of electrical components are mounted in close contact with the mounting member, or when the holding force of the mounting member with respect to the electrical component is set to a high value, such as about 150 [N], Removal of parts has become even more difficult.

  Therefore, in view of the above-described problems, an object of the present invention is to provide a cassette block and a method for removing an electrical component that can simplify an electrical component removing operation.

  The cassette block according to claim 1, which has been made in accordance with the present invention in order to solve the above-described problem, includes an electrical component mounting portion for mounting an electrical component, and a main body member provided with the electrical component mounting portion. The main body member is penetrated, and the opening on one side has a through hole facing the outer edge portion of the electric component.

  According to the cassette block of the present invention described in claim 1, since the through hole penetrates the main body member and the opening on one side faces the outer edge of the electrical component, the other of the through holes When, for example, a rod-shaped removal jig or the like is passed through the opening, the tip part comes into contact with the outer edge of the electrical component, so that the electrical component can be removed by pushing up the removal jig or the like as it is.

  According to a second aspect of the present invention, in the cassette block according to the first aspect, the through hole is formed to extend in a direction in which the electric component is attached to or detached from the electric component mounting portion.

  According to the cassette block of the present invention described in the second aspect, since the through hole is formed in the main body member so as to extend in the attaching / detaching direction of the electric component, the removal jig or the like is securely attached to the outer edge portion of the electric component. It can be pushed up by abutting.

  According to a third aspect of the present invention, in the cassette block according to the first or second aspect, a plurality of the through holes are provided, and the through holes are provided so as to face the outer edge portions of the different electric parts. It is characterized by.

  According to the cassette block of the present invention described in claim 3, a plurality of through holes are provided, and these through holes are provided so as to face the outer edge portions of different electric components. The removal member or the like can be pressed against a plurality of different locations.

  According to a fourth aspect of the present invention, in the cassette block according to any one of the first to third aspects, the main body member is provided with a plurality of electrical component mounting portions, and the opening of the through hole is a plurality of electrical component. It is formed so as to face the outer edge.

  According to the cassette block of the present invention described in claim 4, since the opening of the through hole is formed so as to face the outer edge portion of the plurality of electric components, the removal jig is provided at the outer edge portion of the plurality of electric components. Etc. can be pressed simultaneously.

  In order to solve the above-mentioned problems, an electrical component removing method according to claim 5, which is made according to the present invention, includes an electrical component mounting portion for mounting an electrical component, a main body member provided with the electrical component mounting portion, and the main body member. An electrical component removing method for removing the electrical component from a cassette block that has a through hole that penetrates and has an opening on one side facing an outer edge of the electrical component, wherein the electrical component is removed from the through hole of the main body member. The tip of the removal jig is brought into contact with the outer edge of the electrical component, and the removal jig is moved in the removal direction of the electrical component in this state.

  According to the method for removing an electric component of the present invention described in claim 5, when the removal jig passes through the through hole of the cassette block main body member, the tip portion thereof contacts the outer edge of the electric component, and the state When the removal jig is further pushed in the removal direction of the electrical component, the electrical component is pushed up from the electrical component mounting portion and removed.

  As described above, according to the cassette block of the present invention described in claim 1, the through hole is formed through the main body member and the opening on one side faces the outer edge of the electrical component. For example, if a rod-shaped removal jig or the like is passed through the other opening of the through hole, the tip portion can be brought into contact with the outer edge of the electrical component. Can be removed. Therefore, even when the holding power of the electrical part mounting part of the cassette block to the electrical part is strong, the outer edge part of the electrical part can be pushed up, so that the electrical part can be easily removed and the removal work can be simplified. Can do. In addition, even if the cassette block is provided in a recessed position where it is difficult to remove the electrical components manually, the electrical components can be easily removed, so that the work efficiency can be improved and the cassette box A degree of freedom can be given to the mounting position.

  According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, since the through hole is formed in the main body member so as to extend in the attaching / detaching direction of the electrical component, Since the electric component can be reliably brought into contact with the outer edge of the electric component and pushed up, the electric component can be reliably removed.

  According to the invention described in claim 3, in addition to the effect of the invention described in claim 1 or 2, a plurality of through holes are provided so that these through holes face outer edges of different electrical components. Therefore, the removal member or the like can be pressed against a plurality of different locations on the outer edge portion of the electrical component, so that it is possible to prevent the electrical component from being rolled up and becoming difficult to remove.

  According to the invention described in claim 4, in addition to the effect of the invention described in any one of claims 1 to 3, the opening of the through hole is formed so as to face the outer edges of the plurality of electrical components. Therefore, since a plurality of electrical components can be removed simultaneously by pressing a removal jig or the like against the outer edge portions of the plurality of electrical components, the efficiency of the removal operation can be improved. In addition, when mounting a plurality of electrical components on the main body member in a dense state, it is not necessary to provide many through holes, and the cassette block can be reduced in size.

  As described above, according to the electrical component removing method of the present invention described in claim 5, the removal jig is passed through the through hole of the cassette block main body member, and the tip portion thereof is used as the outer edge portion of the electrical component. In this state, the removal jig is moved in the removal direction of the electrical component, and the electrical component is pushed up from the electrical component mounting portion to be removed. Even when the holding force is strong, the outer edge portion of the electrical component can be pushed up, so that the electrical component can be easily removed and the removal work can be simplified. In addition, even if the cassette block is installed in a recessed position where it is difficult to remove the electrical parts manually, the electrical parts can be easily removed, improving work efficiency and attaching the cassette box. A degree of freedom can be given to the position.

  Hereinafter, an electric junction box according to an embodiment of the present invention will be described with reference to FIGS. 1 to 4. FIG. 1 is a perspective view showing an external appearance of an electrical junction box having a cassette block according to an embodiment of the present invention. 2 is an exploded perspective view showing the electrical junction box shown in FIG. FIG. 3 is a perspective view showing an example of the relationship between the cassette block and the removal jig shown in FIG. FIG. 4 is a partial sectional view of the cassette block shown in FIG. FIG. 5 is a top view of the cassette block shown in FIG. FIG. 6 is a top view of the cassette block showing another example of the through hole for the cassette block.

  The electrical junction box 1 shown in FIG. 1 according to the present embodiment is mounted on an automobile as a moving body. As shown in FIGS. 1 to 5, the electrical junction box 1 includes a box body 2 that is a case body, a cassette block 3 that is a connection member, a lower cover 5, and an upper cover 6.

  The box body 2 is made of, for example, an insulating synthetic resin such as polypropylene terephthalate and is formed by a well-known injection molding. The box body 2 is formed in a substantially cylindrical shape (box shape) by a plurality of frames 7. The box body 2 is provided with a plurality of mounting portions 8 for mounting the cassette block 3, the fusible link 3A, and the like. Each of the mounting portions 8 is a space surrounded by a plurality of frame members 7 constituting the outer wall of the box body 2 and the partition plate. In FIG. 1 and FIG. 2 of the mounting portion 8, both ends positioned up and down are open. Further, on the inner surface of the mounting portion 8 of the box body 2, a locking receiving portion (not shown) for locking the locking portion 10 of the cassette block 3 is provided. The outer wall of the box body 2 is provided with a plurality of locking portions 23 that are locked with locking portions 52 described later of the lower cover 5.

  The cassette block 3 has a main body member 30, an electrical component mounting portion 31, and a through hole 32. The main body member 30 is formed of a synthetic resin or the like in a box shape having a size that can be accommodated in the mounting portion 8. The main body member 30 is inserted into the mounting portion 8 through the opening on the lower side in FIG. 1 and FIG. The main body member 30 is provided with a plurality (six in FIG. 3) of electrical component mounting portions 31 and a plurality of locking portions 10.

  The locking portion 10 is formed to protrude from the outer surface of the main body member 30 and is locked to the locking receiving portion provided on the box main body 2 described above. The cassette block 3 is inserted into the mounting portion 8 through the opening described above. The cassette block 3 is fixed to the box body 2 by the locking portion 10 being locked to the locking receiving portion. Thus, the cassette block 3 is fixed to the box body 2 while being accommodated in the mounting portion 8.

  The electrical component mounting portion 31 is provided so as to protrude from the upper surface 30 a of the main body member 30 located on the upper side in FIG. 3 and has a linear space provided in the main body member 30. The longitudinal direction of the electrical component mounting portion 31 is provided in parallel to each other, and is along the direction in which the cassette block 3 is inserted into the mounting portion 8. Both ends of the electrical component mounting portion 31 positioned in the up and down direction in FIG. 3 are open.

  The electrical component mounting portion 31 is fixed by a press-fit terminal (not shown) or the like so that when the relays 4A and 4B are fitted and press-fitted, a predetermined holding force (for example, 147 Newton) is obtained when the relay 4A and B are pulled out. 3 to 5, the electric wire (not shown) is attached to the electric component mounting portion 31 via a connector or the like from the lower side, that is, the side opposite to the mounting surface of the electric component 4. And the electric wire are electrically connected.

  The through-hole 32 penetrates the main body member 30 and is formed so that the opening on one side faces the outer edge 41 of the relays 4A and 4B. Then, the distal end portion 71 of the cylindrical removal rod 70 is directed toward the removal direction T of the relays 4A and 4B so that the distal end portion 71 of the columnar removal rod 70 is always in contact with the vicinity of the corners of the outer edge portions 41 facing each other. The extending through hole 32 is formed in the upper surface 30 a of the main body member 30. The outer edge portion 41 of the relays 4A and 4B may be a side surface portion or the like.

  Thus, since the through-hole 32 is formed in the main body member 30 so as to extend in the attaching / detaching direction of the relays 4A and B, the removal jig 70 is securely brought into contact with the outer edge portion 41 of the relays 4A and B. Since it can push up, relay 4A, B can be reliably removed from the electrical component mounting part 31. FIG.

  In the best mode, the case where the two through holes 32 are formed corresponding to the two relays 4A and the two relays 4B located in the central portion in the longitudinal direction of the cassette block 3 will be described. The through holes 32 can be formed in correspondence with the relays 4A and 4B.

  The cross-sectional shape of the through-hole 32 is formed in a circle that is substantially the same as the cross-section of the removal jig 70 that penetrates, but the present invention is not limited to this. Various cross-sectional shapes such as a cross-sectional shape corresponding to the removal jig 70 and a cross-sectional shape that can be penetrated different from the removal jig 70 can be used.

  Thus, since the through hole 32 which penetrates the main body member 30 of the cassette block 3 and the opening on one side faces the outer edge portion 41 of the relays 4A and 4B is formed, the other of the through holes 32 is provided. When the rod-shaped removal jig 70 is passed through the opening, the tip 71 can be brought into contact with the outer edge of the electrical component. Therefore, the relays 4A and 4B can be removed by pushing up the removal jig 70 as it is. .

  The lower cover 5 is made of an insulating synthetic resin like the box body 2 and is formed by a well-known injection molding. The lower cover 5 includes a plurality of outer walls 51 different from each other, and is formed in a bottomed cylindrical shape. The outer wall 51 of the lower cover 5 is provided with a plurality of locking portions 52 that lock with the locking portions 23 of the box body 2 described above. The lower cover 5 is brought close to each other so as to be overlapped with the box body 2, and the box body is arranged such that the locking portion 52 is locked to the locking portion 23 of the box body 2 and covers the aforementioned lower surface of the box body 2. 2 is attached.

  Similar to the box body 2, the upper cover 6 is made of an insulating synthetic resin and is formed by a well-known injection molding. The upper cover 6 is formed in a lid shape that is substantially the same shape as the upper surface of the box body 2. At the edge of the upper cover 6, a locking portion 61 that locks with the locking portion 26 of the box body 2 is provided. The upper cover 6 is brought close to each other so as to overlap the box body 2, and the locking part 61 is locked to the locking part 26 of the box body 2 so as to cover the above-described upper surface of the box body 2. It is attached to the main body 2.

  The removal jig 70 penetrating through the through hole 32 of the cassette block 3 is formed in a cylindrical shape with synthetic resin or the like. The removal jig 70 can have various cross-sectional shapes such as a triangle and a quadrilateral polygon. The length of the removal jig 70 may be sufficient to penetrate the main body member 30 and push up the relays 4A and 4B.

  Next, the relays 4A and 4B are removed from the cassette block 3 having the above-described configuration as follows. First, the lower cover 5 and the upper cover 6 are removed from the box body 2 when the relays 4A and 4B are removed from the cassette block 3. When removing the relay 4A, as shown in FIG. 3 or FIG. 4, the removal jig 70 is passed through the through hole 32 of the main body member 30 corresponding to the relay 4A, and the tip 71 of the removal jig 70 is attached. The two relays 4A are brought into contact with the outer edge portions 41. In this state, the removal jig 70 is moved in the removal direction T of the two relays 4 </ b> A to push up the two relays 4 </ b> A and remove them from the electrical component mounting portion 31.

  Similarly, when removing the relay 4B, the removal jig 70 is passed through the through hole 32 of the main body member 30 corresponding to the relay 4B, and the distal end portion 71 of the removal jig 70 is connected to the outer edge portions 41 of the two relays 4B. Abut. In this state, the removal jig 70 is moved in the removal direction T of the two relays 4A to push up the two relays 4B and remove them from the electrical component mounting portion 31.

  As described above, according to the cassette block 3, the removal jig 70 is passed through the through hole 32 of the main body member 30 of the cassette block 3, and the tip 71 is brought into contact with the outer edge 41 of the relays 4 </ b> A and B. In this state, the removal jig 70 is moved in the removal direction T of the relays 4A and 4B, and the relays 4A and 4B are pushed up and removed from the electrical component mounting portion 31, so that the electrical components of the cassette block 3 are removed. Even when the holding portion 31 has a strong holding force with respect to the relays 4A and 4B, the outer edge portion 41 of the relays 4A and 4B can be pushed up, so that the electrical components can be easily removed and the removal work can be simplified. it can. Further, even if the cassette block 3 is provided at a deep position in the electrical junction box 1 where it is difficult to remove the relays 4A and B manually, the relays 4A and B can be easily removed, thereby improving the work efficiency. In addition, the mounting position of the cassette box 3 can be given flexibility.

  Further, if the electrical connection box 1 is configured to have the cassette block 3 detachably, the removal work can be performed in a state where the cassette block 3 is detached from the electrical connection box 1, thereby further improving the work efficiency. be able to.

  In the above-described best mode, the case where the through hole 32 is formed so as to face the outer edge portions of the two electric components has been described. However, the present invention is not limited to this, and more than that. It can also be set as the form which a through-hole faces the outer edge part of an electrical component.

  For example, as illustrated in FIG. 6, the through hole 32 described above faces the outer edge portion 41 of the two relays 4B, and the through hole 32a having an outer shape larger than the through hole 32 is the outer edge portion 41 of the four relays 4A. It can also be formed on the main body member 30 so as to face each other. Furthermore, the through hole 32 of FIG. 6 may be changed to the through hole 32a so that all the outer edges 41 of the two relays 4A and the two relays 4B face each other through the through hole 32a.

  Thus, since the openings of the through holes 32a are formed so as to face the outer edge portions 41 of the plurality (four in FIG. 6) of the relays 4A, the removal jig 70 is attached to the outer edge portions 41 of the plurality of relays 4A. Can be simultaneously removed and the plurality of relays 4A can be removed at the same time, so that the efficiency of the removal work can be improved. Further, when a plurality of relays 4A are mounted on the main body member 30 in a dense state, it is not necessary to provide many through holes, and the cassette block 30 can be downsized.

  Further, a plurality of the above-described through holes 32 are provided for one relay 4A, B, for example, an outer edge corresponding to two corners on the opposite sides of the relay 4A, B in the longitudinal direction, and two corners on the diagonal line. The through holes 32 are formed so as to face the outer edge portions 41 of the different relays 4A and 4B. By setting it as such a structure, since a removal member etc. can be pressed with respect to the different location of the outer edge part in an electrical component, it can prevent that an electrical component falls and becomes difficult to remove.

It is a perspective view which shows the external appearance of the electrical-connection box which has a cassette block which concerns on one Embodiment of this invention. It is a perspective view which decomposes | disassembles and shows the electrical-connection box shown by FIG. It is a perspective view which shows the example of a relationship between the cassette block shown in FIG. 2, and a removal jig | tool. FIG. 4 is a partial cross-sectional view of the cassette block shown in FIG. 3. FIG. 4 is a top view of the cassette block shown in FIG. 3. It is a top view of the cassette block which shows the other example of the through-hole with respect to a cassette block.

Explanation of symbols

1 Electrical junction box 2 Box body 3 Cassette block 4A, B Relay (electrical parts)
30 Body member 31 Electrical component mounting portion 32 Through hole

Claims (5)

In a cassette block having an electrical component mounting portion for mounting an electrical component, and a main body member provided with the electrical component mounting portion,
A cassette block having a through-hole penetrating the main body member and having an opening on one side facing an outer edge portion of the electric component.   The cassette block according to claim 1, wherein the through hole is formed to extend in a direction in which the electric component is attached to or detached from the electric component mounting portion.   3. The cassette block according to claim 1, wherein a plurality of the through holes are provided, and the through holes are provided so as to face different outer edges of the electric parts.   4. The apparatus according to claim 1, wherein the main body member is provided with a plurality of electric component mounting portions, and the openings of the through holes are formed to face outer edge portions of the plurality of electric components. The cassette block according to Item. An electric component mounting portion for mounting the electric component, a main body member provided with the electric component mounting portion, and a through-hole penetrating the main body member and facing an outer edge portion of the electric component. An electrical component removal method for removing the electrical component from the cassette block,
The removal jig is passed through the through hole of the main body member, the tip of the removal jig is brought into contact with the outer edge of the electrical component, and the removal jig is moved in the removal direction of the electrical component in that state. A method for removing electrical parts characterized by the above.

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