CN110620334A - Distribution board case - Google Patents
Distribution board case Download PDFInfo
- Publication number
- CN110620334A CN110620334A CN201811561924.3A CN201811561924A CN110620334A CN 110620334 A CN110620334 A CN 110620334A CN 201811561924 A CN201811561924 A CN 201811561924A CN 110620334 A CN110620334 A CN 110620334A
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- China
- Prior art keywords
- door panel
- panel
- shaft
- locking
- cabinet
- Prior art date
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Patch Boards (AREA)
- Distribution Board (AREA)
Abstract
Provided is a switchboard cabinet, which can be opened upwards and can be locked in an opened state without assembling other components and the like on a hinge part even if the switchboard cabinet is provided with a door panel. The door device is provided with a door panel (4) for closing an opening (31) arranged on a front panel (3), wherein the front panel is arranged on the front surface of a shell body (2), and the upper end of the door panel (4) can be hinged to the front panel (3) in an opening and closing mode. A rotating shaft (5) for being hinged to the front panel (3) is integrally formed on the door panel (4), and a shaft fixing part (6) for fixing the rotating shaft (5) is integrally provided on the corresponding front panel (3). A projection (5c) is provided on a predetermined side surface of the rotating shaft (5), and a locking projection (6c) is provided on a shaft fixing portion (6) of the front panel (3), and when the door panel (4) is rotated upward by an opening operation, the projection (5c) is locked to the locking projection in a state of being moved over the locking projection, and the closing operation of the door panel (4) is stopped.
Description
Technical Field
The present invention relates to a cabinet of a distribution board that houses a circuit breaker and the like, and more particularly to a distribution board cabinet having a door panel on a front surface thereof.
Background
A switchboard cabinet that accommodates a plurality of circuit breakers such as a main circuit breaker and a branch circuit breaker often exposes an operation handle from the cabinet to facilitate operation of the circuit breaker. In order to prevent dust and the like from adhering to a charging portion and an electric wire arranged around the breaker and causing electric leakage and the like, it is necessary to close such a switchboard cabinet, and therefore, an opening portion for exposing only the operation handle is provided on the front surface of the cabinet.
A distribution board case having an opening portion on a front surface thereof as described above has become popular as follows: the opening including the operation handle is entirely closed in order to prevent dust and the like from entering the case and to provide a door separately to hide the operation handle in consideration of the appearance.
The door is configured to open upward, and even if the door is provided, the door does not interfere with the operation of the distribution board provided above the wall surface (see, for example, patent document 1).
In addition, since the opening operation is performed upward, a lock mechanism is provided in the hinge portion to maintain the opened state, and the handle operation is facilitated (for example, see patent document 2).
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open No. 2010-11559
Patent document 2: japanese laid-open patent publication No. 9-271112
Disclosure of Invention
Problems to be solved by the invention
In the structure in which the hinge portion is provided with the lock mechanism, the door does not fall even if the hand is separated in a state in which the door is opened, and therefore, inspection work and the like are easily performed. However, since such a hinge is formed by assembling a member made of metal such as a shaft or a cam member to the door and the housing, the cost is high.
In view of the above-described problems, an object of the present invention is to provide a distribution board casing that does not require a hinge portion to be assembled with another member or the like even if the distribution board casing includes a door panel that can be opened upward and can be locked in an opened state.
Means for solving the problems
In order to solve the above-described problems, the invention according to claim 1 is a distribution board casing having a door panel that closes an opening provided on a front surface of the casing, the door panel being openable and closable and an upper portion of the door panel being hinged to the casing, wherein a rotating shaft for being hinged to the casing is integrally formed on the door panel, a shaft fixing portion having a shaft hole for fixing the rotating shaft is integrally formed on the casing, a protrusion is provided on a predetermined side surface of the rotating shaft, and a locking protrusion is provided on the shaft fixing portion, and when the door panel is rotated upward by an opening operation, the protrusion is locked to the locking protrusion in a state of crossing the locking protrusion, thereby preventing a closing operation of the door panel.
According to this configuration, since the member for hinging the door panel to the housing is formed integrally with the door panel and the housing, respectively, no other member for forming a hinge is required, and the structure can be made at low cost. On this basis, since the door panel in the opened state can maintain the opened state, it is not necessary to additionally assemble the holding mechanism.
The invention according to claim 2 is a distribution board casing having a door plate that closes an opening provided on a front surface of the casing, the door plate being openable and closable and an upper portion of the door plate being hinged to the casing, wherein a rotating shaft for being hinged to the casing is integrally formed at an upper end of the door plate, a shaft fixing portion having a shaft hole for fixing the rotating shaft is integrally provided to the casing, and further, the door plate is provided with an engaging mechanism that engages with the casing to maintain an open state after the door plate is opened to a predetermined angle.
According to this configuration, since the member for hinging the door panel to the housing is formed integrally with the door panel and the housing, respectively, no other member for forming a hinge is required, and the structure can be made at low cost. Further, since the door panel in the opened state can maintain the opened state, it is not necessary to additionally assemble the holding mechanism.
The invention according to claim 3 is characterized in that, in addition to the configuration described in claim 2, the locking mechanism is a locking tongue piece provided to protrude from an upper side of the door panel, the locking portion formed in the housing to be locked is a locking groove having an inclined surface that allows the locking tongue piece to slide toward an inside of the housing from a portion where the locking tongue piece is locked, and the door panel locked in the locking groove is released from the locking after the door panel is subjected to the closing operation, and the locking tongue piece slides on the inclined surface to perform the closing operation.
According to this configuration, when the door panel held in the open state is closed, the locking of the locking tongue piece is released and the closing operation is performed, and therefore, the locking is released in a sliding manner without performing a separate locking release operation, and therefore, the locking tongue piece is not broken.
The invention according to claim 4 is characterized in that, in addition to the structure according to any one of claims 1 to 3, the housing includes a box-shaped housing main body having an open front surface and a front panel, the front panel has an opening and closes the open front surface, and the shaft fixing portion is formed on a back surface of the front panel.
According to this configuration, even if the shaft fixing portion is formed integrally with the front panel, it is preferably hidden from the front and is preferably viewed from the outside because it is formed on the back of the front panel.
The invention according to claim 5 is characterized in that, in addition to the configuration according to claim 4, a guide portion for guiding the rotation shaft inserted from the front to the shaft fixing portion is provided on the front panel.
According to this configuration, even if the shaft fixing portion is formed on the back portion of the front panel, the rotating shaft is guided by the guide portion, and therefore the door panel can be easily attached.
The invention according to claim 6 is characterized in that, in addition to the configuration described in claim 5, the front panel has an insertion opening into which the rotary shaft is inserted from the front directly below the shaft fixing portion, the guide portion is an arc-shaped guide path formed in a back portion of the insertion opening, and the rotary shaft inserted from the front is guided to the shaft fixing portion directly above by the guide path.
According to this configuration, since the rotary shaft inserted into the insertion port is guided by the arc-shaped guide path and moves to the shaft fixing portion directly above, the rotary shaft can be easily fixed, and the door panel can be easily attached.
Effects of the invention
According to the present invention, since the member for hinging the door panel to the housing main body is formed integrally with the door panel and the housing main body, respectively, no other hinge member is required, and the structure can be made inexpensively. On this basis, since the door panel in the opened state can maintain the opened state, it is not necessary to additionally assemble the holding mechanism.
Drawings
Fig. 1 is a perspective view showing a first embodiment of a distribution board cabinet according to the present invention, wherein (a) in fig. 1 shows a state where a door panel is closed, and (b) in fig. 1 shows a state where the door panel is opened.
Fig. 2 is a front view of the front panel in a state where the door panel of fig. 1 is opened.
Fig. 3 shows a cross section taken along line a-a of fig. 2, where (a) of fig. 3 is an overall view and (B) of fig. 3 is an enlarged view of a portion B.
Fig. 4 is a cross section taken along line a-a in a state where the door panel is closed, where fig. 4 (a) is an overall view and fig. 4 (b) is an enlarged view of a portion C.
Fig. 5 is a perspective view illustrating the door panel and the front panel separated from each other, in which fig. 5 (a) is the front panel and fig. 5 (b) is the door panel.
Fig. 6 is an enlarged view of a portion D of fig. 5.
Fig. 7 is a rear perspective view of the front panel.
Fig. 8 is an enlarged view of a portion E of fig. 7.
Fig. 9 is an explanatory view of mounting a door panel to a front panel, fig. 9 (a) is a view of a state immediately before mounting, and fig. 9 (b) is an enlarged view of a portion F.
Fig. 10 is an explanatory view of the door panel attached to the front panel, where (a) in fig. 10 is a rear view of the front panel with a rotary shaft disposed just in front of the shaft hole, and (b) in fig. 10 is an enlarged view of a portion G.
Fig. 11 is an explanatory view of the completed door panel when it is mounted, in fig. 11, (a) is a rear view of the front panel with the rotary shaft inserted in the shaft hole, and in fig. 11, (b) is an enlarged view of a portion H.
Fig. 12 is a perspective view showing a second embodiment of the distribution board casing according to the present invention, in which fig. 12 (a) shows a state where a door panel is closed, and fig. 12 (b) shows a state where the door panel is opened.
Fig. 13 is a front view of the front panel in a state where the door panel of fig. 12 is opened.
Fig. 14 is a sectional view taken along line J-J of fig. 12, in which fig. 14 (a) shows a main portion and fig. 14 (b) shows an enlarged view of an L portion.
Fig. 15 is a J-J line cross-sectional view of a state where the door panel is closed, where (a) in fig. 15 shows a main portion, and (b) in fig. 15 shows an enlarged view of an N portion.
Fig. 16 is a perspective view illustrating the door panel and the front panel separated from each other, in which fig. 16 (a) is the front panel and fig. 16 (b) is the door panel.
Fig. 17 is an enlarged view of a portion O of fig. 16.
Fig. 18 is an enlarged view of the portion P in fig. 16, and is a perspective view seen from the rear surface.
Fig. 19 is a rear view of the portion P housing the rotation shaft.
Fig. 20 is a rear view of the portion P pivotally mounted with the received rotary shaft.
Fig. 21 is a cross-sectional view taken along line K-K of fig. 13, in which fig. 21 (a) shows a main portion and fig. 21 (b) shows an enlarged view of a portion Q.
Fig. 22 is a cross-sectional view taken along line K-K in a state where the door panel is closed, in which fig. 22 (a) shows a main portion and fig. 22 (b) shows an enlarged view of an R portion.
Fig. 23 is a cross-sectional view taken along line K-K showing a state in which the door panel is being closed, in which fig. 23 (a) shows a main portion and fig. 23 (b) shows an enlarged view of an S portion.
Description of the reference numerals
1. 11: a housing; 2: a housing main body; 3: a front panel; 4: a door panel; 4 a: a locking tongue piece (locking mechanism); 5: a rotating shaft; 5 a: a connecting shaft; 5 c: a protrusion; 6: a shaft fixing portion; 6 a: an accommodating portion; 6 b: a shaft hole; 6 c: a locking protrusion; 7: a connecting member; 8: a guide path (guide portion); 9: a locking groove (locking part); 9 a: an inclined surface; 31: an opening part; 33: an insertion opening; 34: a locking hole.
Detailed Description
Hereinafter, embodiments embodying the present invention will be described in detail with reference to the drawings. Fig. 1 is a perspective view showing a first embodiment of a distribution board cabinet according to the present invention, wherein (a) in fig. 1 shows a state where a door panel is closed, and (b) in fig. 1 shows a state where the door panel is opened. Fig. 2 is a front view of the distribution board cabinet with the door panel open.
The cabinet 1 as a cabinet of an electrical panel has a box-shaped cabinet main body 2 and a front panel 3, wherein the cabinet main body 2 has a back surface and a peripheral side surface, and a front surface is open, the front panel 3 is disposed on the front surface of the cabinet main body 2 and closes the open front surface of the cabinet main body 2, and the front panel 3 is provided with a door panel 4 whose upper end is hinged and which can be opened and closed.
A switchboard apparatus such as a circuit breaker is assembled in the case main body 2, and a knock-out hole 21 is provided in a top surface or the like which is a side surface, and the knock-out hole 21 can form a hole through which an electric wire connected to the circuit breaker or the like accommodated therein can be inserted and withdrawn.
The front panel 3 has a recessed area 32 recessed at the center by a height of one step, and the recessed area 32 is provided with an opening 31 for exposing an operation handle (not shown) of the circuit breaker accommodated in the case body 2. The recessed area 32 forms a storage space for the operation handle exposed from the opening 31. The door panel 4 is provided to enclose the concave area 32 including the opening 31.
Fig. 3 and 4 show cross sections taken along line a-a of fig. 2. Fig. 3 shows a state where the door panel 4 is opened, as in fig. 2, (a) in fig. 3 is an overall view, and (B) in fig. 3 is an enlarged view of a B portion. Fig. 4 shows a state where the door panel 4 is closed, where (a) in fig. 4 is an overall view and (b) in fig. 4 is an enlarged view of a portion C.
Further, fig. 5 to 8 are explanatory views of a hinge structure which is a coupling structure of the front panel 3 and the door panel 4, fig. 5 is an overall explanatory view of the front panel 3 and the door panel 4 separated from each other, fig. 6 is an enlarged view of a portion D of fig. 5, fig. 7 is a rear perspective view of the front panel 3, and fig. 8 is an enlarged view of a portion E of fig. 7.
As shown in fig. 3 and 4, the door panel 4 is hinged to the front panel 3 at two left and right positions at the upper end thereof, and as shown in fig. 5, the door panel 4 is formed with a rotating shaft 5 constituting one of the hinge portions. Fig. 6 shows an enlarged view of the rotary shaft 5. As shown in fig. 7, the other shaft fixing portion 6 constituting the hinge portion is formed on the back of the front panel 3. Fig. 8 is an enlarged view of the shaft fixing portion 6.
Hereinafter, the hinge portion will be specifically described.
The rotary shaft 5 is disposed in the left-right direction orthogonal to the turning direction of the door panel 4 and constitutes a hinge shaft. As shown in fig. 6, the end portion has a coupling shaft 5a coupled to the shaft fixing portion 6 of the front panel 3. Further, an extension shaft 5b is provided, and the extension shaft 5b is integrally formed continuously on the same shaft as the coupling shaft 5a, thereby reinforcing the coupling shaft 5 a. A projection 5c for locking a locking projection 6c described later is formed at a specific portion of the side surface of the extension shaft 5 b.
As shown in fig. 6, the rotary shaft 5 is connected to the door panel 4 via a connecting member 7 and is formed integrally with the door panel 4. As shown in the cross-sectional views of fig. 3 and 4, the coupling member 7 is formed to have a U-shaped outer shape from the back surface of the door panel 4 upward, and the rotary shaft 5 is formed to easily enter the back portion of the front panel 3.
As shown in fig. 8, the shaft fixing portion 6 is formed on the back surface of the front panel 3, and includes a box-shaped housing portion 6a that houses the rotary shaft 5. A shaft hole 6b into which the coupling shaft 5a is inserted and fixed is provided on a side surface of the housing portion 6a, and a locking protrusion 6c to which a protrusion 5c provided on the rotary shaft 5 is locked is formed on an inner wall facing the side surface of the rotary shaft 5.
On the other hand, as shown in fig. 5, an insertion opening 33 into which the rotary shaft 5 is inserted is formed in the front surface of the front panel 3 located directly below the shaft fixing portion 6, and a guide passage 8 for guiding the inserted rotary shaft 5 is formed from the back of the insertion opening 33 toward the shaft fixing portion 6. As shown in fig. 7, the guide passage 8 is formed in an arc shape and is formed to guide the inserted rotary shaft 5 to the shaft fixing portion 6.
In particular, the rotary shaft 5 inserted into the insertion port 33 can be smoothly moved to the shaft fixing portion 6 by being guided by the guide path 8 by the coupling member 7 formed in a U shape.
As described above, the door panel 4 is openably and closably connected to the front panel 3 by forming a hinge shaft by disposing the rotary shaft 5 in the housing portion 6a of the shaft fixing portion 6 and inserting the connecting shaft 5a of the disposed rotary shaft 5 into the shaft hole 6 b.
Fig. 9 to 11 are explanatory diagrams showing a flow of the mounting operation of the door panel 4, and the steps will be specifically described with reference to the diagrams. Fig. 9 is an explanatory diagram of the insertion port 33 of the front panel 3 into which the rotary shaft 5 of the door panel 4 is inserted, fig. 9 (a) is an overall diagram of the front panel 3 and the door panel 4, and fig. 9 (b) is an enlarged view of the F portion. Fig. 10 is a rear view of the front panel 3 in which the rotary shaft 5 is disposed directly in front of the shaft hole 6b, where fig. 10 (a) is an overall view and fig. 10 (b) is an enlarged view of a portion G. Fig. 11 is a rear view of the front panel 3 when the installation of the door panel 4 is completed, where (a) in fig. 11 is an overall view, and (b) in fig. 11 is an enlarged view of a portion H.
In order to attach the door panel 4, the door panel 4 is first inserted into the insertion port 33 with the rotating shaft 5 substantially horizontally as shown in fig. 9. For convenience of explanation, the angle of the door panel 4 is set to be shallow in fig. 9.
After insertion, the door panel 4 is rotated by about 90 degrees to a position where the opening 31 is closed, and the rotating shaft 5 is moved upward inside the insertion port 33. By this operation, the U-shaped coupling member 7 is moved so as to engage with the arc-shaped guide path 8, and the rotary shaft 5 is moved toward the back of the front panel 3. The state after the movement is the state shown in fig. 10, and the coupling shaft 5a formed at the end of the rotating shaft 5 is disposed near the shaft hole 6b by the movement.
In the state shown in fig. 10, the shaft hole 6b is arranged substantially on the axis of the rotary shaft 5, the shaft hole 6b is positioned right forward of the connecting shaft 5a, and when the door panel 4 is slid rightward, the connecting shaft 5a is inserted into the shaft hole 6b to hinge the door panel 4, and the state shown in fig. 11 is obtained. In fig. 11, the door panel 4 is slid leftward as the front panel 3 is viewed from the rear.
In this way, the left and right rotary shafts 5 are simultaneously coupled to the shaft fixing portions 6, and the door panel 4 is mounted (hinged).
As shown in fig. 3, when the door panel 4 is opened and rotated to an angle substantially horizontal after the hinge, the projection 5c of the rotary shaft 5 moves so as to pass over the locking projection 6c of the shaft fixing portion 6 in the middle, and the projection 5c functions to be locked to the locking projection 6c from above.
As a result, when the door panel 4 tries to rotate downward due to its own weight, the downward rotation is prevented. That is, the closing operation of the door panel 4 in the substantially horizontal state is prevented and the angle is maintained. When the door panel 4 is closed from this state, the door panel 4 is rotated downward by a pressing operation of an operator or the like, and the locking is released to close the door panel 4.
In this way, since the members for hinging the door panel 4 to the front panel 3 constituting the housing 1 are formed integrally with the door panel 4 and the front panel 3, respectively, no separate members for forming hinges are required, and the structure can be made at low cost. On this basis, since the door panel 4 in the opened state can maintain the opened state, it is not necessary to additionally assemble a holding mechanism.
Further, since the shaft fixing portion 6 is formed integrally with the front panel 3, it is preferably hidden from the front and is preferable in terms of appearance because it is formed on the back of the front panel 3.
Further, even if the shaft fixing portion 6 is formed on the back of the front panel 3, the rotation shaft 5 can be guided by the guide passage 8, and therefore the door panel 4 can be easily attached.
In addition, since the rotary shaft 5 inserted into the insertion port 33 is guided by the arc-shaped guide path 8 and moves to the shaft fixing portion 6 directly above, the rotary shaft 5 can be easily fixed, and the door panel 4 can be easily attached.
Fig. 12 is a perspective view showing a second embodiment of the distribution board casing according to the present invention, in which fig. 12 (a) shows a state where a door panel is closed, and fig. 12 (b) shows a state where the door panel is opened. Fig. 13 is a front view of the distribution board cabinet with the door panel open.
The housing 11 includes a box-shaped housing main body 2 and a front panel 3, wherein the housing main body 2 has a back surface and a peripheral side surface and a front surface is open as in the above-described embodiment, the front panel 3 is disposed on the front surface of the housing main body 2 and closes the open front surface of the housing main body 2, and the front panel 3 is provided with a door panel 4 whose upper end is hinged and can be opened and closed.
Compared to the above-described embodiment, the structure for holding the door panel 4 in the open state and the number of the switchboard apparatuses housed are different. Hereinafter, the same components as those of the housing 1 will be described with the same reference numerals.
A switchboard apparatus such as a circuit breaker is assembled to the case main body 2, and a knock-out hole 21 is provided in a top surface or the like constituting a part of a side surface, and a hole for allowing an electric wire connected to the circuit breaker or the like accommodated therein to enter and exit is formed in the knock-out hole 21.
Recessed regions 32 recessed at a height of one step are formed at two upper and lower portions of the front panel 3, and an opening 31 for exposing an operation handle (not shown) of the circuit breaker accommodated in the case body 2 is formed inside the recessed regions. The recessed region 32 forms a storage space for the operation handle exposed from the opening 31, and the door panel 4 is provided to entirely close the recessed region 32 including the opening 31 formed in two stages, i.e., the upper and lower stages.
Fig. 14 and 15 show a J-J section of fig. 13. Fig. 14 shows the state of fig. 13 in which the door panel 4 is opened, where (a) in fig. 14 is a main portion and (b) in fig. 14 is an enlarged view of an L portion. On the other hand, fig. 15 shows a state where the door panel 4 is closed, where (a) in fig. 15 is a main portion and (b) in fig. 15 is an enlarged view of an N portion.
Fig. 16 to 20 are explanatory views of a hinge structure that is a coupling structure of the front panel 3 and the door panel 4, fig. 16 is an overall explanatory view of the front panel 3 and the door panel 4 separated from each other, fig. 17 is an enlarged view of a portion O of fig. 16, fig. 18 is a perspective view of a portion P viewed from the back, fig. 19 is a rear view of the portion P in which the rotation shaft 5 is accommodated, and fig. 20 is a rear view of the portion P in which the door panel 4 is attached to the case main body 2 by pivotally attaching the accommodated rotation shaft 5.
As shown in fig. 16, a rotary shaft 5 constituting one of the hinge portions is provided at both right and left upper portions of the door panel 4, and a locking tongue piece 4a is provided in a band shape near the center of the upper side of the door panel 4. A pair of insertion holes 33 into which the rotary shaft 5 is inserted are formed in the front panel 3, and a locking hole 34 into which the locking tongue piece 4a is inserted is formed in the center. As shown in fig. 18, the other shaft fixing portion 6 constituting the hinge portion is formed on the back of the front panel 3.
Hereinafter, the hinge portion will be specifically described.
As shown in fig. 17, the rotary shaft 5 has a coupling shaft 5a coupled to the shaft fixing portion 6 of the front panel 3 at an end portion thereof, and an extension shaft 5b, and the extension shaft 5b is integrally formed continuously and coaxially with the coupling shaft 5a to reinforce the coupling shaft 5 a.
As shown in fig. 17, the rotary shaft 5 is connected to the door panel 4 via a connecting member 7 and is formed integrally with the door panel 4. As shown in the sectional views of fig. 14 and 15, the coupling member 7 is formed to have a U-shaped outer shape facing upward from the back surface of the door panel 4, and the rotary shaft 5 is formed to easily enter the back portion of the front panel 3.
The other shaft fixing portion 6 is formed on the back surface of the front panel 3, and as shown in fig. 19, has a box-shaped housing portion 6a housing the rotary shaft 5, and a shaft hole 6b into which the coupling shaft 5a is inserted and fixed is provided on a side surface of the housing portion 6 a. As shown in fig. 18, an insertion port 33 into which the rotary shaft 5 is inserted is provided directly below the shaft fixing portion 6, and a guide passage 8 for guiding the inserted rotary shaft 5 is formed from the back of the insertion port 33 toward the shaft fixing portion 6.
As shown in fig. 18, the guide path 8 is formed in an arc shape and is formed to guide the inserted rotary shaft 5 to the shaft fixing portion 6. By forming the coupling member 7 in a U shape, the rotary shaft 5 inserted into the insertion port 33 can be smoothly moved to the shaft fixing portion 6 by being guided by the guide path 8.
Thus, the coupling shaft 5a of the rotary shaft 5 disposed in the housing portion 6a is disposed in the vicinity of the shaft hole 6b, and the state shown in fig. 19 is obtained.
Fig. 21 to 23 are explanatory views of the locking structure for holding the angle of the door panel 4 in the open state, and the locking structure will be specifically explained with reference to these views. Fig. 21 is a cross-sectional view taken along line K-K of fig. 13, in which fig. 21 (a) shows a main portion and fig. 21 (b) shows an enlarged view of a portion Q. Fig. 22 is a cross-sectional view taken along line K-K in a state where the door panel 4 is closed, in which fig. 22 (a) shows a main portion and fig. 22 (b) shows an enlarged view of an R portion. Fig. 23 is a cross-sectional view taken along line K-K showing a state in which the door panel 4 is being closed, where (a) in fig. 23 is a main portion and (b) in fig. 23 is an enlarged view of an S portion.
As shown in the cross sections of fig. 21 to 23, the locking tongue piece 4a formed on the upper side of the door panel 4 has a base portion formed to face rearward of the door panel 4, and the locking tongue piece 4a is bent from the middle thereof so that a tip end thereof faces obliquely upward. In addition, M shown in fig. 21 to 23 indicates the rotation center of the door panel 4 (the position of the rotation shaft 5).
On the other hand, the locking hole 34 formed in the front panel 3 is formed in a slit shape, and a locking groove 9 to which the tip end of the locking tongue piece 4a is locked is formed on the lower side of the locking hole 34. The locking groove 9 is formed over the entire locking hole 34 in the left-right direction, and an inclined surface 9a is formed on the back side of the locking groove 9 so that the locking tongue piece 4a moves slidably in the inner direction of the housing 11 when the door panel 4 is closed, that is, turned downward. In addition, an accommodation space for accommodating the locking tongue piece 4a is provided inside the locking hole 34.
The mounting of the door panel 4 formed as above to the front panel 3 and the opening and closing operation are carried out in the following manner. When the door panel 4 is attached, first, the rotation shaft 5 is aligned with the insertion port 33 so that the door panel 4 is substantially horizontal, and the locking tongue piece 4a is aligned with the locking hole 34, and the insertion operation is performed by pressing the door panel obliquely upward, whereby the rotation shaft 5 is disposed in the shaft fixing portion 6 as shown in fig. 14, and the locking tongue piece 4a is inserted into the locking hole 34 as shown in fig. 23.
After the insertion, when the door panel 4 is rotated and lowered to perform the closing operation, the rotating shaft 5 is disposed in the vicinity of the shaft hole 6b of the shaft fixing portion 6 as shown in fig. 19, and when the door panel 4 is slid rightward in this state, the coupling shaft 5a enters the shaft hole 6b as shown in fig. 20 and is pivotally attached to form the hinge portion. That is, the installation of the door panel 4 is completed. Further, since fig. 19 and 20 are rear views of the front panel 3, the door panel 4 slides leftward.
When the connected door panel 4 is rotated upward to perform an opening operation and is further rotated upward from a horizontal state, the front end of the locking tongue piece 4a moves forward, and finally the locking tongue piece 4a is locked to the locking groove 9 as shown in fig. 21. The locked state is not released by the weight of the door panel 4, but the open angle is maintained. When the door panel 4 is pushed downward, the locked state is released, and the door panel 4 is rotated to perform a closing operation.
Since the member for hinging door panel 4 to case 11 is formed integrally with door panel 4 and case 11, no other member for forming a hinge is required, and the structure can be made at low cost. Further, since the door panel 4 in the opened state is held in the opened state, it is not necessary to additionally assemble a holding mechanism.
Further, when the door panel 4 kept in the open state is closed, the locking of the locking tongue piece 4a and the locking groove 9 is released to perform the closing operation, and there is no need to perform a separate locking release operation, and the locking is released by sliding, so that the locking tongue piece 4a is not damaged.
Further, even if the shaft fixing portion 6 is integrally formed with the front panel 3, it is preferably hidden from the front and is preferably seen from the outside because it is formed on the back of the front panel 3.
In addition, even if the shaft fixing portion 6 is formed on the back of the front panel 3, the rotating shaft 5 is guided by the guide path 8, so that the door panel 4 can be easily attached, and the rotating shaft 5 inserted into the insertion port 33 is guided by the arc-shaped guide path 8 to move to the shaft fixing portion 6 directly above, so that the rotating shaft 5 can be easily fixed, and the door panel 4 can be easily attached.
In the second embodiment, the locking tongue piece 4a is formed in a band shape at the center of the upper portion of the door panel 4, but may be formed in a plurality of pieces in the vicinity of the left and right rotation shafts 5.
In the above embodiments, the housings 1 and 11 are each configured by the case main body 2 having a box shape with an open front surface and the front panel 3 closing the open front surface, and the portion to which the device is to be assembled is formed in a box shape, but the portion to which the device is to be assembled may be formed in a plate shape and arranged on the front side, and the member to which the door panel 4 is to be attached may be formed in a box shape.
In the first embodiment in which the number of devices to be accommodated is small, the projection 5c for holding the opened state of the door panel 4 is formed on the rotary shaft 5, and in the second embodiment in which the number of devices to be accommodated is large, the door panel 4 is provided with the locking tongue piece 4a for holding the opened state of the door panel 4.
Industrial applicability of the invention
The above embodiments have been described mainly with respect to a distribution board housing breakers for forming branch circuits, but may also be applied to an information distribution board housing information equipment.
Claims (6)
1. A cabinet for an electric distribution panel, comprising a door panel for closing an opening provided on a front surface of the cabinet, the door panel being openable and closable and having an upper portion hinged to the cabinet,
the electrical panel cabinet is characterized in that it comprises,
a rotating shaft for being hinged to the housing is integrally formed with the door panel, and a shaft fixing portion having a shaft hole for fixing the rotating shaft is integrally provided with the housing,
further, a protrusion is provided on a predetermined side surface of the rotary shaft, and a locking protrusion is provided on the shaft fixing portion, and when the door panel is rotated upward by an opening operation, the protrusion is locked to the locking protrusion in a state of passing over the locking protrusion, thereby preventing a closing operation of the door panel.
2. A cabinet for an electric distribution panel, comprising a door panel for closing an opening provided on a front surface of the cabinet, the door panel being openable and closable and having an upper portion hinged to the cabinet,
the electrical panel cabinet is characterized in that it comprises,
a rotating shaft for being hinged to the housing is integrally formed at an upper end of the door panel, a shaft fixing portion having a shaft hole for fixing the rotating shaft is integrally provided to the housing,
further, the door panel is provided with a locking mechanism that is locked to the case to maintain an open state after the door panel is opened to a predetermined angle.
3. The panelboard of claim 2, wherein,
the locking mechanism is a locking tongue piece protruding from the upper side of the door panel, and a locking part formed on the housing to be locked is a locking groove,
the locking groove has an inclined surface that enables the locking tongue piece to slide from a position where the locking tongue piece is locked toward the inside of the housing,
the door panel locked to the locking groove is unlocked after being closed, and the locking tongue piece slides on the inclined surface to perform a closing operation.
4. The panelboard of any of claims 1 to 3,
the case has a box-shaped case body having an open front surface, and a front panel having the opening and closing the open front surface,
the shaft fixing part is formed on the back surface of the front panel.
5. The panelboard of claim 4, wherein the first and second panels are disposed in the first and second openings,
the front panel is provided with a guide portion for guiding the rotary shaft inserted from the front to the shaft fixing portion.
6. The panelboard of claim 5, wherein the first and second panels are disposed in the first and second openings,
the front panel has an insertion opening for the rotary shaft to be inserted from the front directly below the shaft fixing portion, the guide portion is an arc-shaped guide path formed in the inner portion of the insertion opening,
the rotating shaft inserted from the front is guided by the shaft fixing portion directly above the guide path.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018-116356 | 2018-06-19 | ||
| JP2018116356A JP7049939B2 (en) | 2018-06-19 | 2018-06-19 | Distribution board housing |
| JP2018-130154 | 2018-07-09 | ||
| JP2018130154A JP7085926B2 (en) | 2018-07-09 | 2018-07-09 | Distribution board housing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110620334A true CN110620334A (en) | 2019-12-27 |
| CN110620334B CN110620334B (en) | 2023-05-23 |
Family
ID=68920301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811561924.3A Active CN110620334B (en) | 2018-06-19 | 2018-12-20 | Distribution board shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110620334B (en) |
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|---|---|---|---|---|
| JPS5795003U (en) * | 1980-12-02 | 1982-06-11 | ||
| JP3009356U (en) * | 1994-07-15 | 1995-04-04 | センタック株式会社 | Distribution board door connection structure |
| JP2000270423A (en) * | 1999-03-17 | 2000-09-29 | Toshiba Lighting & Technology Corp | Distribution board |
| JP2005290973A (en) * | 2004-03-12 | 2005-10-20 | Orion Denki Kk | Electronic device equipped with opening/closing door |
| CN2912023Y (en) * | 2005-12-31 | 2007-06-13 | 冯海荣 | Distribution box lid |
| CN204793709U (en) * | 2015-06-19 | 2015-11-18 | 重庆枋源电力设备有限公司 | Block terminal and protective cover thereof |
| CN205104829U (en) * | 2015-11-11 | 2016-03-23 | 宁波市鄞州晨光电器塑料厂 | Block terminal control panel |
| CN207381785U (en) * | 2017-10-17 | 2018-05-18 | 佛山市汇特丰电器有限公司 | A kind of panel for electricity distribution box of improved structure |
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2018
- 2018-12-20 CN CN201811561924.3A patent/CN110620334B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5795003U (en) * | 1980-12-02 | 1982-06-11 | ||
| JP3009356U (en) * | 1994-07-15 | 1995-04-04 | センタック株式会社 | Distribution board door connection structure |
| JP2000270423A (en) * | 1999-03-17 | 2000-09-29 | Toshiba Lighting & Technology Corp | Distribution board |
| JP2005290973A (en) * | 2004-03-12 | 2005-10-20 | Orion Denki Kk | Electronic device equipped with opening/closing door |
| CN2912023Y (en) * | 2005-12-31 | 2007-06-13 | 冯海荣 | Distribution box lid |
| CN204793709U (en) * | 2015-06-19 | 2015-11-18 | 重庆枋源电力设备有限公司 | Block terminal and protective cover thereof |
| CN205104829U (en) * | 2015-11-11 | 2016-03-23 | 宁波市鄞州晨光电器塑料厂 | Block terminal control panel |
| CN207381785U (en) * | 2017-10-17 | 2018-05-18 | 佛山市汇特丰电器有限公司 | A kind of panel for electricity distribution box of improved structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110620334B (en) | 2023-05-23 |
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