JP4588228B2 - Casing structure for electrical equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention, when in a Turkey next-data with the power cord to Lee Nre' Doo and state of electrically connected to the casing main body, for electrical equipment to prevent the hand in the casing main body This is a technology related to the casing structure.
[0002]
[Prior art]
FIG. 5 is a main part perspective view showing an example of a connection relationship between a conventional electric device and a power cord. An inlet 2 is provided on the casing body 1 of the electric device, and a connector 10 is provided on one end side of the power cord 9. They are respectively arranged, and by connecting a connector 10 to the inlet 2, electric power can be supplied to the electrical equipment.
[0003]
In addition, the inlet 2 in this case is provided with a fuse (not shown) for protecting an integrated and built-in circuit and the like, and the fuse cannot be replaced while the connector 10 in the live state is connected. The structure was adopted.
[0004]
On the other hand, FIG. 6 is a main part perspective view showing another example of the connection relation between a conventional electric device and a power cord, and an inlet 6 is arranged in the casing body 5 of the electric device as in the example of FIG. By connecting a connector 10 provided on one end side of the power cord 9 to the inlet 6, power can be supplied to the electrical equipment.
[0005]
In the conventional example shown in FIG. 6, a fuse 7 separate from the inlet 6 is attached to an appropriate position of a printed wiring board 8 disposed in the casing body 5, for example. Is protecting.
[0006]
[Problems to be solved by the invention]
By the way, according to the conventional example shown in FIG. 5, since the fuse cannot be replaced unless the connector 10 is pulled out from the inlet 2, there is a possibility that an operator may directly contact the circuit side including the fuse or the like under a live line condition. Absent.
[0007]
However, in the conventional example shown in FIG. 5, since the fuse is also integrally incorporated on the inlet 2 side, even if it is necessary to replace the fuse with an optimum one depending on the situation, it cannot be flexibly dealt with. There was an inconvenience. In addition, since the fuse is integrated, the structure on the inlet 2 side is considerably complicated, and there is a problem that becomes one of the factors that increase the product cost.
[0008]
On the other hand, in the case of the conventional example shown in FIG. 6, the structure around the inlet 6 can be simplified, and the existing fuse 7 can be easily replaced with another fuse. However, since it has a structure in which a finger can be inserted into the casing body 6 with the connector 10 being inserted into the inlet 6, there is a risk of directly touching the circuit side including the fuse 7 in a live state during manual work. .
[0009]
In view of the above-mentioned problems found in the prior art, the present invention provides a casing structure for an electric device that can safely and flexibly perform manual work on a circuit side including fuse replacement while simplifying the structure. There is a purpose to provide.
[0010]
[Means for Solving the Problems]
The present invention has been made in order to achieve the above object, one side casing and the power cord, the power supply cord provided with an inlet that is electrically connected to a connector provided at one end, each other are combined integrally It is composed of parts and a casing body consisting of the other casing part, the one-side casing unit, the front end surface of the connector when the electrically connected to the outside to the inlets to prevent insertion contact with an inlet opening which surface size is defined by the enclosed frame unit consisting granted obtained, said other-side casing part, at a position facing the inlet opening when the combination of the one-side casing unit, e Bei blades the inlet which is movable around a protrusion from said inlet opening, said casing body, electrically to the connector on the inlet The front end surface of the connector when the is connected to the surrounding frame portion be to contact from the outside, constituting on the said one side casing portion and said other end casing part and is incapable integrated pull the There are features.
[0011]
In this case, the casing body can be integrated with each other by covering the one-side casing portion disposed above so as to cover the other-side casing portion disposed below. or formed on, the aforementioned one-side casing part and the outer box side, by the inner box side and another side casing portion which is inserted into the one casing, to be able to form an integral combination of mutual Is preferred.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is an overall perspective view showing an example of the present invention before the combination, and FIG. 2 is an overall perspective view showing the state after the combination. The power cord 101 can be electrically connected to a connector 102 provided at one end thereof. a casing body 11 having an inlet 2 7, each other is composed of a one side casing portion 12 and the other side casing portion 22 which are combined integrally.
[0013]
This will be described in more detail with reference to the example shown in FIG. 1. The one-side casing portion 12 is suspended from, for example, a top plate portion 13 having a square shape and one side edge 13 a of the top plate portion 13. And the other side plate portion 15 that is suspended from the other side edge 13b side of the top plate portion 13 located on the side facing the one side plate portion 14.
[0014]
Further, either one of the side edges 13c and 13d located in the top plate portion 13 between the one side plate portion 14 and the other side plate portion 15, from the right corner portion side of the side edge 13c in the illustrated example. The surrounding frame portion 16 having the defined inlet opening portion 17 has the same length as the other side plate portion 15 and is vertically suspended.
[0015]
On the other hand, the other casing portion 22 has a bottom plate portion 23 having a size substantially matching the top plate portion 13 and a side edge 23a of the bottom plate portion 23 located on the side facing the side edges 13c and 13d of the top plate portion 13. , 23b, the one side cover plate part 24 and the other side cover plate part 25 which are vertically longer than the vertical lengths of the one side plate part 14 and the other side plate part 15 and are erected at the same height. It has.
[0016]
Further, between the one side cover plate portion 24 and the other side cover plate portion 25, the one side plate portion 29 and the other side plate portion 30 which are shorter in length than each other and have the same height as each other are the bottom plate portion 23. In this case, they are erected from the respective side edges 23c, 23d located between the one side cover plate part 24 and the other side cover plate part 25.
[0017]
Furthermore, according to the illustrated example, the one-side cover plate portion 24 or the other-side cover plate portion 25, the one-side cover plate portion 24 has an inlet of the surrounding frame portion 16 when combined with the one-side casing portion 12. Lee Nretto 27 in the upper portion 24a side which is the positional relationship facing the use openings 17 are arranged to project the blade 28 outwardly.
[0018]
In this case, the surrounding frame section 16, upon the connection state by inserting the connector 10 2 of the power cord 101 to the blade 28 of the inlet 27 which has issued collision through the inlet opening 17 from the outside, the connector 10 2 The tip surface 10 2 a is formed so as to have a surface size that allows at least a part of the tip surface 10 2 a to abut and prevent its insertion. Further, on the bottom plate portion 23 of the other casing portion 22, a printed wiring board 31 including a fuse 32 that is a separate body from the inlet 27 is disposed to protect circuits and the like.
[0019]
On the other hand, FIG. 3 is an overall perspective view showing a state before combination and FIG. 4 is a state after combination for another example of the present invention.
[0020]
According to these drawings, the casing main body 41 including the inlet 59 electrically connected to the connector 102 provided on one end side of the power cord 101 has the one-side casing portion 42 as the outer box side, and the one-side casing 42. The other casing portion 52 that can be freely inserted into the inside is formed on the inner box side, so that an integral combination with each other is possible .
[0021]
This will be described in more detail with reference to the example shown in FIG. 3. The one-side casing portion 42 includes, for example, a bottom plate portion 43 and a top plate portion 44 that face each other, a bottom plate portion 43 and a top plate portion 44. The one side plate portion 45 and the other side plate portion 46 arranged between the two are formed to have a rectangular tube structure having a substantially rectangular parallelepiped shape having opening surfaces 47 and 48 on two opposing surfaces.
[0022]
In addition, in one of the opening surfaces 47 and 48, in the illustrated example, a surrounding frame portion 49 having a defined inlet opening 50 is formed on the other side plate portion 46 at the upper right corner of the opening surface 47 positioned forward. The upper end portion 46a is integrally provided vertically.
[0023]
On the other hand, the other casing part 52 is located on the side of the opening surface 47 of the one side casing 42 of the bottom plate part 53 when combined with the bottom plate part 53 having a slightly smaller similar shape than the bottom plate part 43 of the one side casing 42. One side cover plate portion 54 erected on the side edge 53a so as to fit within the opening surface 47, and on the other side edge 53b located on the opening surface 48 side, stand up to fit within the opening surface 48. The other side cover board part 55 provided is provided.
[0024]
Further, from the side edges 53c and 53d side of the bottom plate portion 53 located between the one side cover plate portion 54 and the other side cover plate portion 55, the same vertically long one side plate portion 56 and the other side plate portion 57 are formed. Each of them stands upright and is formed in a box shape having an opening surface 58 on the upper surface as a whole.
[0025]
Further, according to the illustrated example, the one side cover plate portion 54 or the other side cover plate portion 55 has an inlet of the surrounding frame portion 49 when the one side cover plate portion 54 is combined with the one side casing portion 42. An inlet 59 is disposed on the side of the upper portion 54a that faces the opening 50 for use with the blade 61 projecting outward.
[0026]
In this case, the surrounding frame section 49, upon the connection state by inserting the connector 10 2 of the power cord 101 to the blade 61 of the inlet 59 which has issued collision through the inlet openings 50 from the outside, the connector 10 2 The tip end face 10 2 a is formed with a size that allows at least a part of the tip face 10 2 a to come into contact with each other and prevent its insertion. Further, on the bottom plate portion 53 of the other-side casing portion 52, a printed wiring board 62 including a fuse 63 that is a separate body from the inlet 59 is disposed to protect circuits and the like.
[0027]
Next, the operation of the present invention will be described with reference to the example of FIG. 1. Assembling of the casing body 11 is performed by covering the other casing portion 22 by covering the one casing portion 12 from above. Done.
[0028]
That is, one side casing unit 12, the surrounding frame portion 16 is disposed so as to face in front of Lee Nretto 27 of the other side casing portion 22, the other side fed while projecting the blade 28 from the inlet opening 17 The casing part 22 is combined so as to face each other . Thereby, the whole as the casing main body 11 of an electric equipment is integrally assembled.
[0029]
It is the casing body 11 as shown in FIG. 2 when used as an electric device after assembled is inserted into the connector 10 2 GENERAL Nretto 27 side provided on the power cord 101.
[0030]
At this time, the front end surface 10 2 a of the connector 102 abuts at least a part of the surrounding frame portion 16 of the one-side casing portion 12, so that the one-side casing portion 12 and the other-side casing portion 22 separated from the casing body 11 Cannot be pulled apart. That is, when in the live line state, it is structurally impossible for the operator to directly contact the circuit side including the fuse 30 and the like.
[0031]
Further, when the necessary inspections and repairs of the circuit such as replacement or a printed wiring board 29 of the fuse 30 is provided it has occurred, unless withdrawn the connector 10 2 of the power cord 101 from Lee Nretto 27 side, to perform the work I can't. That is, replacement of the fuse 30 and inspection / repair of the circuit provided in the printed wiring board 29 can always be safely performed under a non-live line state.
[0032]
On the other hand, will be described operation of the present invention by referring to the example of FIG. 3, the assembly of the casing body 41, to one side casing portion 42 of the outer box, the other side of the inner box from the opening surface 48 side This is done by feeding the casing part 52 from the one side cover plate part 54 side.
[0033]
By feeding such other casing part 52 at one side casing portion 42 in the, blades 61 Louis Nretto 59 other casing portion 52 is provided on one side the cover plate 54, the one side casing portion 42 under the state of protruding from the inlet opening 50 of the surrounding frame portion 49 provided on the opening surface 47 side, it is Rukoto combining the one side casing portion 42 and the other side casing portion 52. Thereby, the whole as the casing main body 41 of an electric equipment is assembled | assembled integrally .
[0034]
When used as an electrical device after the casing body 41 is assembled as shown in FIG. 4 is inserted into the connector 102 Guy Nretto 59 side provided on the power cord 101.
[0035]
At this time, the distal end surface 10 2 a of the connector 10 2, because the contact at least a portion of the surrounding frame portion 49 of one side casing part 42, one side casing portion 42 to separate the casing body 41 and the other casing part 52 Cannot be separated. That is, when in the live line state, it is structurally impossible for the operator to directly contact the circuit side including the fuse 63 and the like.
[0036]
Further, when the necessary inspections and repairs such as a circuit including replacement or printed wiring board 62 of the fuse 63 occurs, unless withdrawn the connector 10 2 of the power cord 101 from Lee Nretto 59 side, to perform the work I can't. That is, replacement of the fuse 63 and inspection / repair of the circuit provided in the printed wiring board 62 can always be safely performed in a non-live line state.
[0037]
In addition, the above is what demonstrated this invention according to the example of illustration, In implementation, it is not limited to the content mentioned above. For example, regarding the specific shapes of the one-side casing portions 12 and 42 and the other-side casing portions 22 and 52 constituting the casing main bodies 11 and 41, the inlets 27 and 59 are brought into contact with the surrounding frame portions 16 and 49. As long as it can be exposed from the inlet openings 17 and 50 so that it can be connected to a certain connector 102, the present invention is not limited to the illustrated example and can be employed as appropriate. For example, the part which has a double structure in the assembled casing bodies 11 and 41 can have a structure in which either one is omitted as much as possible from the viewpoint of reducing the weight and reducing the material cost .
[0038]
[0039]
【The invention's effect】
According to the present invention as mentioned above, the casing main body, unless separated the connector provided in the power cord from the inlet provided in the casing body, can not be pulled apart by one side casing part separated with the other casing section In addition, the replacement of the fuse and the inspection and repair of the circuit provided in the printed wiring board can always be performed only under a non-live line state, and the safety of work can be further improved.
[0040]
In addition, with the combined structure of the one side casing part and the other side casing part that can separate the casing main body, the fuse replacement work and the like can be made flexible and simple while simplifying the inlet side structure. It can be carried out.
[Brief description of the drawings]
FIG. 1 is an overall perspective view showing a state before combination of an example of the present invention.
2 is an overall perspective view showing a state after combination of the example of FIG. 1;
FIG. 3 is an overall perspective view showing a state before combination of another example of the present invention.
4 is an overall perspective view showing a state after combination in the example of FIG. 3;
FIG. 5 is a perspective view of a main part showing an example of a connection relationship between a conventional electric device and a power cord.
FIG. 6 is a perspective view of a main part showing another example of a connection relationship between a conventional electric device and a power cord.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Casing main body 2 Inlet 5 Casing main body 6 Inlet 7 Fuse 8 Printed wiring board 9 Power cord 10 0 Connector 11 Casing main body 12 One side casing part 13 Top plate part 13a One side edge 13b Other side edge 13c, 13d side edge 14 One side board Part 15 Other side plate part 16 Surrounding frame part 17 Inlet opening part 22 Other side casing part 23 Bottom plate parts 23a, 23b, 23c, 23d Side edge 24 One side cover plate part 24a Upper side part 25 Other side cover plate part 27 Inlet 28 Blade 29 One side plate portion 30 Other side plate portion 31 Printed wiring board 32 Fuse 41 Casing body 42 One side casing portion 43 Bottom plate portion 44 Top plate portion 45 One side plate portion 46 Other side plate portion 46a Upper end portions 47, 48 Opening surface 49 Enclosing frame portion one 50 inlet opening 52 the other casing portion 53 the bottom plate portion 53a side edge 53b the other side edge 3c, 53d side edge 54 a side cover plate part 54a upper portion 55 the other side lid plate portion 56 side plate portion 57 other side plate portion 58 opening surface 59 inlet 61 blade 62 printed circuit board 63 Fuse 101 Power Cord 102 Connector 10 2 a front end surface

Claims (3)

And the power cord, comprising an inlet for the power cord is electrically connected to a connector provided at one end, mutual is composed of a casing body consisting of one side casing part and the other side casing unit combined integrally ,
The one casing section has its leading end face the connector when the electrically connected to the outside to the inlet is defined by the enclosed frame section plane size capable of preventing the insertion is granted in contact With an inlet opening,
Said other casing section, at a position facing the inlet opening when the combination of the one-side casing unit, e Bei said inlet blade was protruded possible the formation of from the inlet opening,
The casing main body is configured such that when the connector is electrically connected to the inlet, the one-side casing portion and the other-side casing portion are brought into contact with the surrounding frame portion from the outside when the distal end surface of the connector is brought into contact with the surrounding frame portion. A casing structure for electrical equipment, characterized in that they are integrated so that they can not be separated . The casing body is formed so as to be capable of an integral combination with each other by covering the one side casing portion disposed above so as to cover the other casing portion disposed below . The casing structure for an electric device according to claim 1. The casing body is formed such that the one-side casing portion is an outer box side, and the other casing portion inserted into the one-side casing is an inner box side, thereby enabling an integral combination with each other. The casing structure for an electric device according to claim 1.

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