JP4723321B2 - Breaker mounting structure - Google Patents

Description

  The present invention relates to a structure for mounting a breaker mounted in a distribution board.

  Conventionally, in order to fix the breaker to the mounting panel in the distribution board, a structure in which the breaker is screwed to the mounting panel using a screw or a structure in which a dedicated elastic member is used is employed. Moreover, in the case where the primary side (power connection side) of the breaker is formed in a plug shape, for example, as described in Patent Document 1, a breaker is formed using an elastic synthetic resin mounting member. In general, a structure for attaching to a mounting panel is employed.

Japanese Patent Laid-Open No. 2001-327007

Here, a conventional breaker mounting structure will be described with reference to FIGS.
FIG. 4A is an explanatory view showing an attachment structure using the screw 35, and locking recesses 32, 32 are provided at the base of the breaker 31. On the other hand, hook-like locking claws 34, 34 that are locked to the locking recesses 32, 32 of the breaker 31 protrude from the mounting panel 33. The breaker 31 is fixed to the mounting panel 33 by fastening one locking claw 34 with a screw 35 in a state where each locking claw 34 is locked to the locking recess 32.
In addition, as an attachment structure using a screw, there is also a structure in which an attachment piece having a screw hole is provided in the breaker, and the attachment piece is screwed to an attachment panel to fix the breaker.

  FIG. 4B is an explanatory view showing a mounting structure using a dedicated elastic member 36, and one locking claw 34 provided on the mounting panel 33 is an elastic member 36 having a locking projection. Therefore, when the breaker 31 is inserted from above, the locking projection of the elastic member 36 and the locking recess 32 of the breaker 31 are locked, and the breaker 31 is fixed to the mounting panel 33.

FIG. 5 is an explanatory view showing an attachment structure using an attachment member 48 made of synthetic resin.
On the front side of the breaker 41, a fitting convex portion 42 is integrally projected, and a locking concave portion (not shown) is provided on the rear side. On the other hand, the mounting panel 43 is integrally provided with a hook-like locking claw 44 that locks in the locking recess. Further, a notch 45 into which a mounting member 48 to be described later can be inserted is provided on the front end surface of the mounting panel 43, and holding pieces 46, 46 for holding the inserted mounting member 48 are provided below the notch 45. Projected to Further, behind the cutout 45, a locking projection 47 projects downward.

The mounting member 48 is formed of an elastic synthetic resin, and a locking portion 49 that locks the locking projection 47 is provided at the distal end, and the breaker 41 is fitted at the proximal end. A fitting recess 50 into which the projection 42 can be fitted is provided.
Then, the mounting member 48 is inserted into the notch 45 with the locking claw 44 of the mounting panel 43 locked in the locking recess of the breaker 41. Then, the fitting convex portion 42 is fitted into the fitting concave portion 50, and the locking projection 47 and the locking portion 49 are locked to fix the breaker 41 to the mounting panel 43.

However, if the breaker is attached using screws, it takes time and effort to tighten the screws, leading to an increase in assembly costs. This is especially true when the number of circuits is large, such as a branch breaker.
If an elastic member is used, the breaker can be easily attached to the mounting panel, but a dedicated elastic member must be installed on the mounting panel. Therefore, the cost increases due to the increase in the number of parts and the labor involved in installing the elastic member. Furthermore, if a dedicated mounting member is used, as with the case of using an elastic member, problems such as an increase in the number of parts occur, and the mounting panel must be subjected to complicated processing. Up is required. In addition, since the breaker is fixed by locking the locking portion provided on the synthetic resin mounting member and the locking protrusion provided on the breaker, there is also a problem that rattling is likely to occur after the breaker is mounted. I have it.

  Therefore, the present invention has been made to solve the above-described problems, and it is an object of the present invention to provide a breaker mounting structure that can easily and reliably fix the breaker and is advantageous in terms of cost.

In order to achieve the above object, the invention described in claim 1 of the present invention is a breaker mounting structure for fixing a breaker to a mounting panel, wherein a screw and a pin made of synthetic resin are provided on the mounting panel. While providing an insertable insertion hole, the breaker is provided with an insertion hole into which the screw and the pin can be inserted, and either of the screw or the pin is inserted from the insertion hole of the breaker to the insertion hole of the mounting panel. The breaker can be fixed to the mounting panel, and a holding mechanism including an engaging portion provided on the pin side and an engaged portion provided on the breaker side is provided. The pin can be held in the inserted state inserted up to the insertion hole .
According to a second aspect of the present invention, in the first aspect of the invention, an L-shaped engagement piece is provided on the pin, and the engagement piece can be inserted into the insertion hole of the breaker together with the pin. While the engagement convex portion is provided in the insertion hole, the engagement concave portion capable of engaging with the engagement convex portion is provided in the insertion hole.
The invention according to claim 3 is the invention according to claim 1 or 2 , further comprising a temporary holding mechanism capable of temporarily holding the pin in the insertion hole of the breaker without inserting the pin up to the insertion hole of the mounting panel. It is characterized by.
According to a fourth aspect of the present invention, in the invention of any one of the first to third aspects, the breaker is provided with a locking piece, while the mounting panel is provided with a locking hole into which the locking piece can be fitted, and the locking The breaker can be locked to the mounting panel by sliding the breaker in one direction with a piece fitted in the locking hole, and can be fixed with a pin or screw in the locked state. It is characterized by that.

According to the present invention, the breaker is fixed on the mounting panel by inserting a pin made of synthetic resin from the insertion hole of the breaker through the insertion hole of the mounting panel. Therefore, the breaker can be reliably fixed to the mounting panel. On the other hand, when it is desired to remove the breaker, the pin may be pulled up until the pin is not inserted into the insertion hole. In this way, the breaker can be fixed and removed simply by pushing and pulling up the pins, and the burden on assembly work and the like can be reduced.
Moreover, it is not necessary to perform a special process etc. with respect to an attachment panel (at least the penetration hole should just be drilled). Therefore, the mounting panel can be manufactured with simple equipment, and the manufacturing cost can be kept low.
In addition, if the breaker is rattled by fixing with a pin, a screw can be inserted into the insertion hole and fixed instead of the pin. Thus, by making it possible to use either a hook pin or a screw, when fixing a plurality of breakers to the mounting panel, even if some of them are fixed by screws, There is no need to replace the mounting panel with screws. Therefore, it is extremely versatile and can save time and cost for fixing the breaker.
Further, since the provided an engagement piece provided in the pin, the holding mechanism consisting of the engaging portion and the secondary provided to the breaker, it is possible to hold the pin in the inserted condition by the holding mechanism, more reliably The breaker can be fixed to the mounting panel. Furthermore, it is not necessary to use a separate member or the like for holding the pin in the inserted state, and effects such as reduction in the number of parts and improvement in usability can be achieved.
Further, according to the invention of claim 2 , the pin is provided with an L-shaped engagement piece, the engagement piece can be inserted into the insertion hole of the breaker together with the pin, and the engagement protrusion is provided on the engagement piece. On the other hand, an engaging recess that can engage with the engaging protrusion is provided in the insertion hole. Therefore, the engagement piece urged forward in the insertion hole can hold the engagement state between the engagement convex part and the engagement concave part more reliably, and it can be reliably performed without rattling the breaker. Can be fixed to.
Furthermore, according to the invention of claim 3, the temporary holding mechanism is provided which can be temporarily held in the insertion hole of the breaker in a state where the pin is not inserted to the insertion hole of the mounting panel. Therefore, if the hook pin is held in the insertion hole by a temporary holding mechanism before the breaker is fixed to the mounting panel or when it is removed from the mounting panel and the fixing position is changed, the hook pin can be prevented from being lost. As a result, assembly work can be performed more smoothly.
In addition, according to the invention of claim 4 , the breaker is provided with the locking piece, while the mounting panel is provided with the locking hole into which the locking piece can be fitted, and the locking piece is fitted into the locking hole. The breaker can be locked to the mounting panel by sliding the breaker in one direction, and it is possible to fix it with a pin or screw in the locked state, so that the breaker can be fixed to the mounting panel very reliably. It can be.

  Hereinafter, a breaker mounting structure according to an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1A is an explanatory perspective view showing a state in which the breaker 1 is attached to the attachment panel 2 using the hook pin 3, and FIG. 1B is an explanatory perspective view showing a state in which the breaker 1 is attached by the hook pin 3. It is. FIG. 2 is an explanatory cross-sectional view showing a state in which the breaker 1 is attached to the attachment panel 2 by the hook pin 3. Note that the hook pin 3 insertion side of the breaker 1 will be described as the front side of the breaker 1.

  The breaker 1 is provided with primary side connection terminals 4a, 4a,... On the rear surface and secondary side (electric wire connection side) connection terminals 4b, 4b on the front surface. A fixing portion 5 having an insertion hole 6 that can be inserted is integrally provided. The insertion hole 6 is provided so as to penetrate from the upper surface to the lower surface of the fixing portion 5. The holding portion 7 having a holding mechanism (described later) for holding the hook pin 3, The small-diameter portion 8 is formed with a small diameter and into which the tip of the hook pin 3 is inserted.

  As shown in FIG. 2, on the front side of the inner surface of the holding portion 7 of the insertion hole 6, when the hook pin 3 is temporarily temporarily fixed in the insertion hole 6, the engagement protrusion 15 of the hook pin 3 is engaged. A second engaging concave portion (temporary holding mechanism) 9b to be engaged and a first engaging concave portion (holding mechanism) 9a to be engaged with the engaging convex portion 15 when the breaker 1 is fixed by the hook pin 3 are provided. . The second engaging recess 9b is configured such that the tip 13 of the hook pin 3 does not protrude downward from the bottom surface of the breaker 1 when the engaging projection 15 of the hook pin 3 is engaged (in this embodiment, the small diameter (Not penetrating the portion 8). Moreover, the 1st engagement recessed part 9a is provided in the downward position rather than the 2nd engagement recessed part 9b.

  Further, hook-shaped locking pieces 10 and 10 formed so as to be bent backward are integrally projected on the bottom surface of the breaker 1. Note that one locking piece 10 is provided at each of the front portion and the rear portion of the bottom surface of the breaker 1.

  On the other hand, the hook pin 3 is formed of a synthetic resin, and includes a base portion 12 having a flat and wide head portion 11 and a tip portion 13 formed to have substantially the same diameter as the small diameter portion 8. Become. The base portion 12 is provided with an L-shaped engagement piece (holding mechanism) 14 having an engagement convex portion 15 on the front surface of the tip so as to protrude forward. The engagement piece 14 has elasticity in the front-rear direction.

On the other hand, the mounting panel 2 is a metal plate formed in a thin plate shape, and is provided with a pair of locking holes 16 and 16 into which locking pieces 10 and 10 provided on the bottom surface of the breaker 1 can be fitted. Yes. Further, in a state where the locking pieces 10 and 10 of the breaker 1 are locked to the locking holes 16 and 16 as will be described later, the tip 13 of the hook pin 3 is located at a position corresponding to the insertion hole 6 of the breaker 1. An insertion hole 17 through which can be inserted is formed. A plurality of sets of attachment mechanisms for the breaker 1 in which the pair of the locking holes 16 and 16 and the insertion hole 17 are set in the left-right direction of the attachment panel 2 are provided.
Reference numeral 20 denotes a copper bar connected to a power source.

Here, a method for attaching the breaker 1 to the attachment panel 2 will be described.
First, the locking pieces 10 and 10 of the breaker 1 are inserted into the predetermined locking holes 16 and 16 of the mounting panel 2, and the breaker 1 is slid rearward in the inserted state to engage the locking pieces 10. Lock to the stop hole 16. By the locking, the insertion hole 6 and the insertion hole 17 are positioned so as to correspond to each other. Therefore, if the hook pin 3 is inserted into the insertion hole 6 from above and pushed until the tip 13 of the hook pin 3 passes through the insertion hole 17, the sliding movement of the breaker 1 in the front-rear direction on the mounting panel 2 is locked. The breaker 1 is fixed at a predetermined position. In the fixed state (that is, in a state where the tip 13 of the hook pin 3 is inserted through the insertion hole 17), the locking projection 15 of the hook pin 3 is engaged with the first engagement recess 9a in the insertion hole 6. Is held by. Further, in the holding state, the locking piece 14 is biased forward.

  On the other hand, when it is desired to remove the breaker 1 from the mounting panel 2 or to change the installation position of the breaker 1 on the mounting panel 2, the hook pin 3 is engaged with the engaging protrusion 15 with the second engaging recess 9b. Just pull it up until you do. In this state, since the tip portion 13 of the hook pin 3 does not penetrate the small diameter portion 8 of the insertion hole 6 (not through the insertion hole 17 of the mounting panel 2), the breaker 1 moves in the front-rear direction on the mounting panel 2. The slide can be moved to. Therefore, the breaker 1 can be removed by sliding the breaker 1 forward to release the locking state between the locking pieces 10, 10 of the breaker 1 and the locking holes 16, 16 of the mounting panel 2. When it is desired to install again, the locking pieces 10 and 10 and the locking holes 16 and 16 at desired positions are locked, and the hook pin 3 is engaged with the engaging convex portion 15 and the first engaging concave portion 9a. If it pushes in until it matches, the breaker 1 can be fixed to the mounting panel 2 again.

  In addition, if the breaker 1 is loose when it is fixed by the hook pin 3, a screw 21 is inserted into the insertion hole 6 instead of the hook pin 3 as shown in FIG. It is also possible to fix the breaker 1 to the mounting panel 2 by screwing.

According to the mounting structure of the breaker 1 as described above, the hook pin 3 is inserted from the insertion hole 6 of the breaker 1 through the insertion hole 17 of the mounting panel 2, and in this insertion state, The breaker 1 is fixed on the mounting panel 2 by engaging the first engagement recess 9 a and holding the hook pin 3. Therefore, the breaker 1 can be reliably fixed to the mounting panel 2.
Moreover, since the breaker 1 can be fixed and removed simply by pushing and pulling up the hook pin 3, the burden on assembly work and the like can be reduced.

Further, in the insertion hole 6, the first end portion 13 of the hook pin 3 does not protrude downward from the bottom surface of the breaker 1 (when the insertion hole 17 is not inserted) when engaged with the engagement convex portion 15. A two-engagement recess 9b is provided. Therefore, before the breaker 1 is fixed to the mounting panel 2 or when it is once removed from the mounting panel 2 and the fixing position is changed, the engaging convex portion 15 of the hook pin 3 is engaged with the second engaging concave portion 9b. If this is done, the hook pin 3 can be prevented from being lost, and as a result, the assembly work can be performed more smoothly.
Furthermore, the engaging piece 14 of the hook pin 3 is biased forward in the insertion hole 6. Therefore, the engagement state between the engagement convex portion 15 and the first engagement concave portion 9a can be more reliably maintained, and the breaker 1 can be reliably fixed without rattling.

Furthermore, the locking pieces 10, 10 provided on the bottom surface of the breaker 1 are fitted into the locking holes 16, 16 provided in the mounting panel 2, and the breaker 1 can be slid rearward in the fitted state. In this case, the breaker 1 can be installed at a predetermined position in the locked state. Therefore, the breaker 1 can be fixed to the mounting panel 2 very reliably.
Moreover, since the insertion hole 6 of the breaker 1 and the insertion hole 17 of the mounting panel 2 are positioned at the naturally corresponding positions by the locking by the locking pieces 10, 10, the assembly work can be performed very smoothly. .

Furthermore, since the mounting panel 2 can be configured simply by drilling the locking holes 16 and 16 and the insertion hole 17 in the metal plate, the mounting panel 2 can be manufactured with simple equipment and the manufacturing cost is low. Can be suppressed.
In addition, if the breaker 1 is rattled by fixing with the hook pin 3, the screw 21 can be inserted into the insertion hole 6 and fixed instead of the hook pin 3. Thus, by selecting and using either the hook pin 3 or the screw 21, when fixing a plurality of breakers to the mounting panel 2, some of them are fixed by the screws 21. Even if it exists, it is not necessary to replace the mounting panel 2 of the corresponding part with a screw dedicated one. Therefore, it is extremely versatile and can save time and cost for fixing the breaker 1.

  In addition, the structure which concerns on the breaker mounting structure of this invention is not limited to the aspect of the said embodiment at all, It can change suitably as needed in the range which does not deviate from the meaning of this invention.

For example, in the above embodiment, since the primary side is a plug type (a type in which the primary side connection terminal is inserted so as to sandwich the copper bar), the fixing part having the insertion hole is connected to the secondary side so as not to obstruct the copper bar or the like. Although it is provided on the terminal side, the position of the fixing portion can be appropriately changed, and there is no problem even if it is configured to provide two or more fixing portions.
Moreover, in the said embodiment, although the convex part was provided in the engagement piece and the recessed part was respectively provided in the insertion hole, it is the structure which provides a recessed part in an engagement piece, without being limited to the structure at all. Of course, it is also possible to provide a concave portion or a convex portion outside the insertion hole. In addition, the hook pin holding mechanism, such as the engagement of engagement pieces into engagement holes formed separately from the insertion holes and the engagement of the engagement pieces, as appropriate, is not the engagement between the protrusions and the recesses. Can be changed.

  Furthermore, the number of locking pieces provided on the bottom surface of the breaker can be changed naturally, and a convex part / protruding piece for positioning the breaker on the mounting panel (if necessary, a concave part on the breaker side) is provided. It may be. Furthermore, when only fixing with a hook pin or a screw is sufficient, it is not necessary to provide a structure such as a locking piece.

(A) is explanatory perspective view which shows a mode that a breaker is attached to an attachment panel using a hook pin, (b) is explanatory perspective view which shows the state which attached the breaker with the hook pin. It is explanatory sectional drawing which shows the state by which the breaker was attached to the attachment panel with the hook pin. (A) is an explanatory perspective view which shows a mode that a breaker is attached to an attachment panel using a screw, (b) is an explanatory perspective view which shows the state which attached the breaker with the screw. (A) is explanatory drawing which shows the attachment structure using a screw, (b) is explanatory drawing which shows the attachment structure using an exclusive elastic member. It is explanatory drawing which shows the attachment structure using the synthetic resin-made attachment members.

Explanation of symbols

  1 .... Breaker 2 .... Mounting panel 3 .... Hook pin 4a ... Primary side connection terminal 4b ... Secondary side connection terminal 5 .... Fixing part 6 ... Insertion hole 7 ... Holding part , 8 ··· Small diameter portion, 9a ··· First engaging recess, 9b ··· Second engaging recess, 10 · · Locking piece, 11 · · Head, 12 · · Base, 13 · · Tip, 14 .. Engagement piece, 15 .. Engagement convex part, 16 .. Locking hole, 17 .. Insertion hole, 20 .. Copper bar, 21.

Claims (4)

Breaker mounting structure for fixing the breaker to the mounting panel,
While the mounting panel is provided with an insertion hole through which a screw and a synthetic resin pin can be inserted,
The breaker is provided with an insertion hole into which the screw and pin can be inserted,
With either the screw or the pin, the breaker can be fixed to the mounting panel by inserting from the insertion hole of the breaker to the insertion hole of the mounting panel .
A holding mechanism comprising an engaging portion provided on the pin side and an engaged portion provided on the breaker side;
Breaker mounting structure characterized in that the holding mechanism allows the pin to be held in an inserted state through the insertion hole . An L-shaped engagement piece is provided on the pin, and the engagement piece can be inserted into the insertion hole of the breaker together with the pin.
2. The breaker mounting structure according to claim 1 , wherein an engagement convex portion is provided on the engagement piece, and an engagement concave portion that is engageable with the engagement convex portion is provided in the insertion hole. The breaker mounting structure according to claim 1 or 2 , further comprising a temporary holding mechanism capable of temporarily holding the pin in the insertion hole of the breaker without inserting the pin to the insertion hole of the mounting panel. While providing the locking piece on the breaker, the mounting panel is provided with a locking hole into which the locking piece can be fitted, and the breaker is slid in one direction with the locking piece fitted in the locking hole. The breaker mounting structure according to any one of claims 1 to 3 , wherein the breaker can be locked to the mounting panel, and can be fixed by a pin or a screw in the locked state. .

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