JP6577398B2 - Outdoor unit for refrigeration cycle apparatus and method for manufacturing outdoor unit for refrigeration cycle apparatus - Google Patents

Description

  Embodiments described herein relate generally to an outdoor unit for a refrigeration cycle apparatus and a method for manufacturing the outdoor unit for a refrigeration cycle apparatus.

  For example, in an outdoor unit of an air conditioner that is a type of refrigeration cycle device, an opening that communicates the inside and outside of the casing is provided on the side plate that forms the casing of the outdoor unit, and a terminal block mounting portion is provided around the opening. The configuration is known. A terminal block for connecting the electrical device in the housing and the electrical wiring is mounted on the terminal block mounting portion. When performing wiring work for installation or maintenance of an outdoor unit, an operator often works while holding the terminal block with a relatively strong force. Therefore, the terminal block mounting portion needs to have a relatively high rigidity enough to withstand the pressing force during this operation.

  However, if a reinforcing member such as a sheet metal part is separately provided in order to increase the rigidity of the terminal block mounting part, the number of parts increases by the amount of the reinforcing member, resulting in an increase in the number of assembly steps for the outdoor unit, etc. This leads to a decrease in manufacturability of the outdoor unit and an increase in manufacturing cost.

JP 2010-127536 A

  Then, the manufacturing method of the outdoor unit of the refrigerating-cycle apparatus which can raise the rigidity of a terminal block attachment part, and the outdoor unit of a refrigerating-cycle apparatus without providing the reinforcement member of a structure different from a side plate is provided.

The outdoor unit of the refrigeration cycle apparatus includes a box-shaped housing and a terminal block mounting portion to which a terminal block provided on a side plate constituting the housing and to which electric wiring is connected is attached. The terminal block mounting portion includes an opening provided on the side plate and communicating between the inside and the outside of the housing, and a connection portion in which a part of the periphery of the opening is connected to the side plate. A plurality of bent portions are formed by connecting the flat plate portion to which the terminal block is attached, the side plate, and the upper portion of the flat plate portion , with the portion being a fulcrum and being bent toward the inside of the housing. And a connecting portion formed to extend toward the inside of the housing. The side plate, the flat plate portion, and the connecting portion are integrally formed. The connecting portion includes a plurality of bent portions between a side plate side end portion that is a boundary portion between the connecting portion and the side plate, and a flat plate portion side end portion that is a boundary portion between the connecting portion and the flat plate portion. Is formed so as to extend toward the inside of the casing.

The outdoor unit manufacturing method for the refrigeration cycle apparatus includes a step of manufacturing a side plate of the casing, and an opening that penetrates the side plate and communicates the inside and the outside of the casing, and the opening in the planar direction of the side plate. A flat plate portion provided on the inside of the portion and having a connection portion with a part of the periphery connected to the side plate, to which the terminal block is attached, and between the side plate and the upper portion of the flat plate portion , the side plate A connecting portion formed in a meandering manner while bending between a side plate side end portion that is a boundary portion and a flat plate portion side end portion that is a boundary portion between the flat plate portion , and a flat plate member A punching step that is integrally formed by punching , and a side plate side end that is a boundary portion between the connecting portion and the side plate while bending the flat plate portion so as to incline toward the inside of the housing with the connection portion as a fulcrum And the boundary between the connecting portion and the flat plate portion It includes a flat plate portion side end portion is a portion, the bending process bending the connecting portion by forming a plurality of bent portions to extend to the inside of the housing between the, the.

The perspective view which shows the outdoor unit of the refrigerating-cycle apparatus by one Embodiment. The figure which shows a side plate about one Embodiment The figure which expands and shows the peripheral part of a terminal block attaching part about one embodiment The flowchart which shows an example of the manufacturing process of a terminal block attaching part about one Embodiment. The figure which expands and shows the peripheral part of the terminal block attachment part before bending a connection part and a flat plate part about one Embodiment. Sectional drawing which shows the terminal block attachment part of the state which bent the connection part and the flat plate part about one Embodiment

Hereinafter, an embodiment will be described with reference to the drawings.
In the present embodiment, an air conditioner will be described as an example of the refrigeration cycle apparatus. In addition, as an outdoor unit of the refrigeration cycle apparatus, in addition to the outdoor unit of the air conditioner, there are a heat source device of a heat pump type water heater, a refrigerator, and the like.
The outdoor unit 10 of the air conditioner shown in FIG. 1 incorporates a fan, a heat exchanger, etc. (not shown) inside a housing 20 that constitutes an outer shell. The housing 20 is formed in a rectangular box shape by combining a front plate 21, a top plate 22, two left and right side plates 23, and a bottom plate (not shown). The front plate 21, the top plate 22, the side plate 23, and the bottom plate (not shown) are formed by bending a metal plate, respectively. In the present embodiment, the surface on the front plate 21 side is the front surface or front side of the outdoor unit 10, and the surface opposite to the front plate 21 is the back surface or rear side. Moreover, let the gravity direction in the installation state of the outdoor unit 10 be the vertical direction of the outdoor unit 10. And let the right angle direction with respect to the front-back direction and an up-down direction be the horizontal direction or the left-right direction of the outdoor unit 10.

  The front plate 21 has a discharge port 211. The discharge port 211 is for discharging wind from a fan (not shown) provided in the housing 20 to the outside of the outdoor unit 10. The discharge port 211 is formed through the front plate 21 in the thickness direction of the front plate 21, and communicates the inside and the outside of the housing 20. Although not shown in detail, the left and right side plates 23 are spaced apart from each other on the side opposite to the front plate 21, so that the surface opposite to the front plate 21, that is, the rear surface of the housing 20 is opened. ing. And the heat exchanger (not shown) accommodated in the housing | casing 20 is exposed outside from this open part.

  Moreover, the outdoor unit 10 has a decorative cover 11, a side cover 12, and a terminal block 40 shown in FIG. The decorative cover 11 is formed in a so-called mesh shape by a member made of synthetic resin, for example. The decorative cover 11 is attached to the front plate 21 and covers the discharge port 211. The side cover 12 is detachably provided on one side plate 23 of the left and right side plates 23. The side cover 12 covers a refrigerant pipe and electrical wiring (not shown) drawn into the housing 20 from the outside and the terminal block 40 shown in FIG.

  Next, details of one side plate 23 to which the side cover 12 is attached among the left and right side plates 23 will be described with reference to FIGS. In the following description, the side plate 23 is simply referred to. As shown in FIG. 2, the side plate 23 has a pipe insertion part 231 and a terminal block attaching part 30. The pipe insertion portion 231 is provided at the lower end portion of the side plate 23, and is formed in a hole or notch that penetrates the side plate 23 in the thickness direction of the side plate 23. A refrigerant pipe (not shown) is passed through the pipe insertion portion 231 and drawn into the housing 20.

  The terminal block attaching part 30 is provided in the upper part of the side plate 23 in the vertical direction, in this case, higher than the center. As shown in FIG. 3, the terminal block attaching part 30 has an opening 31, a flat plate part 32, and at least one connecting part 33. In the case of this embodiment, the terminal block attaching part 30 has two connecting parts 33. The opening 31 is provided in the housing 20. The opening 31 is formed through a part of the side plate 23 and communicates the inside and the outside of the housing 20. By forming the opening 31, the side plate 23 and the flat plate portion 32 are partially separated.

  The flat plate portion 32 is provided inside the opening 31 in the planar direction of the side plate 23. As shown in FIG. 2, the flat plate portion 32 is a region to which the terminal block 40 is attached, and is formed in a rectangular shape as a whole. As shown also in FIG. 3, the flat plate portion 32 has a connection portion 321. The connection part 321 is a part connected to the side plate 23 in the periphery of the flat plate part 32, and a part of the periphery of the opening 31 is continuous with a part of the housing 20. In this case, the flat plate portion 32 is provided continuously with the connection portion 321 inside the opening portion 31. In the case of this embodiment, the connection part 321 is provided on one side of the rectangular flat plate part 32 in this case, the lower side. The flat plate portion 32 is inclined so as to be bent toward the inside of the housing 20 with the connection portion 321 as a fulcrum.

  As shown in FIG. 3, the flat plate portion 32 includes a locking portion 322, a screw hole 323, and a triangular rib 324. The locking part 322 is formed by punching a part of the flat plate part 32 and bending it so that the other part is raised. The screw hole 323 is a female screw hole formed through the flat plate portion 32. A part of the terminal block 40 is locked to the locking portion 322. Then, as shown in FIG. 2, a fastening member 41 such as a screw is passed through the terminal block 40 and screwed into the screw hole 323. Thereby, the terminal block 40 is fixed to the flat plate portion 32. The triangular rib 324 is provided on the connection portion 321 and reinforces the bent state of the flat plate portion 32.

  As shown in FIG. 3, the connecting portion 33 is provided at an end portion of the flat plate portion 32 that is different from the connecting portion 321. In the case of this embodiment, the connection part 33 is provided in two places on both sides of the upper end part of the flat plate part 32. Incidentally, the position where the connecting portion 33 is provided is not limited to the upper end portion of the flat plate portion 32. However, in consideration of the ease of processing and the like, the position of the connecting portion 33 is preferably a position as far as possible from the connecting portion 321 in the flat plate portion 32.

  One end side of the connecting portion 33 is connected to the flat plate portion 32, and the other end side is connected to the side plate 23 around the opening portion 31. Thereby, the connection part 33 has connected between some housing | casings 20. FIG. In the present embodiment, one end side of the connecting portion 33, that is, a boundary portion between the connecting portion 33 and the flat plate portion 32 is referred to as a flat plate portion side end portion 331. Further, the other end side of the connecting portion 33, that is, the boundary portion between the connecting portion 33 and the side plate 23 is referred to as a side plate side end portion 332. The connecting portion 33 is formed to extend toward the inside of the housing 20 by forming a plurality of bent portions between both end portions 331 and 332. The side plate 23, the flat plate portion 32, and the connecting portion 33 are made of the same material in this case without being joined by welding or an adhesive, and without being joined using a fastening member. Are integrally formed. That is, the housing 20, the flat plate portion 32, and the connecting portion 33 are integrally formed.

  In this case, as shown in FIG. 5, the connecting portion 33 meanders while bending in the vertical direction between the flat plate side end portion 331 and the side plate side end portion 332 in a state where the connecting portion 33 is not bent. It is formed in such a form. Further, in a state where the connecting portion 33 is not bent, the flat plate portion side end portion 331 is at a height position substantially the same as the side plate side end portion 332 or below the side plate side end portion 332, that is, on the connection portion 321 side. positioned.

  In the present embodiment, the width dimension of the connecting portion 33 is set to be six times or more the thickness dimension of the side plate 23, that is, the thickness dimension of the connecting portion 33. In the case of this embodiment, the width dimension of the connection part 33 is set to 6 times or more the thickness dimension of the connection part 33 even in the narrowest part. For example, when the thickness dimension of the side plate 23 is 0.6 mm, the width dimension of the connecting portion 33 is set to 3.6 mm or more at the narrowest portion W1.

  As shown in FIG. 2, the terminal block 40 is detachably provided on the terminal block mounting portion 30. Although not shown in detail, the terminal block 40 is used to electrically connect electrical wirings separated from each other, and is, for example, a one-touch connector. The electrical wiring inside the housing 20 and the electrical wiring outside the housing 20 are electrically connected via a terminal block 40 provided on the terminal block mounting portion 30. Then, the electrical wiring is passed through the opening 31 and drawn into the housing 20 from the outside through the opening 31.

Next, the manufacturing method of the outdoor unit 10 provided with the terminal block attaching part 30 is demonstrated with reference to FIGS.
In FIG. 5, in order to clarify the portion where the member exists and the portion where the member does not exist, the portion where the member exists is hatched by hatching. That is, in FIG. 5, the side plate 23, the flat plate portion 32, and the connecting portion 33 are hatched by hatching. Therefore, the hatching in FIG. 5 does not indicate a cross section of the member.

  The flowchart shown in FIG. 4 shows a part of the manufacturing process of the side plate 23 among the manufacturing processes of the outdoor unit 10, and includes the punching process of step S11 and the bending process of step S12. As shown in FIG. 5, the punching process in step S <b> 11 integrally forms the opening 31, the flat plate portion 32, and the connecting portion 33 by punching a flat metal plate that is a base material of the side plate 23. It is a process to do. In this punching process, the locking portion 322 is also punched and formed at the same time. After execution of the punching process, the bending process of step S12 is performed.

  As shown in FIGS. 3 and 6, the bending process in step S <b> 12 is performed by bending the flat plate portion 32 so as to incline toward the inside of the housing 20 with the connecting portion 321 as a fulcrum, and the connecting portion 33 of the housing 20. It is a process of bending so as to extend inward. In this bending step, the connecting portion 33 is bent along the broken lines L1 to L4 in FIG. 5, and a plurality of bent portions 333 are formed on the broken lines L1 to L4. In this case, in the connection part 33, the mountain fold part and the valley fold part are alternately formed in the part shown with the broken lines L1-L4. Thereby, the terminal block attaching part 30 is formed integrally with the side plate 23. In this bending process, the triangular rib 324 shown in FIG. 3 is also formed at the same time. And after execution of a bending process, the terminal block 40 is attached to the flat plate part 32 of the terminal block attaching part 30. FIG.

  According to the embodiment described above, the outdoor unit 10 includes the housing 20 formed in a box shape and the terminal block mounting portion 30. The terminal block attaching part 30 is provided on the side plate 23 that constitutes the housing 20, and is configured to be detachable from the terminal block 40 to which electrical wiring is connected. The terminal block attaching part 30 has an opening part 31, a flat plate part 32, and a connecting part 33. The opening 31 is formed through the side plate 23 and communicates the inside and the outside of the housing 20. The flat plate portion 32 is provided inside the opening 31 in the planar direction of the side plate 23. The flat plate portion 32 has a connection portion 321 in which a part of the periphery is connected to the side plate 23. The flat plate portion 32 is inclined so as to be bent toward the inside of the housing 20 with the connection portion 321 as a fulcrum. The terminal block 40 is detachably attached to the flat plate portion 32. Further, the connecting portion 33 connects the side plate 23 and the flat plate portion 32.

  Moreover, the manufacturing method of the outdoor unit 10 includes a punching process in step S11 and a bending process in step S12 in the manufacturing process of the side plate 23 of the housing 20, as shown in FIG. The punching step is a step of integrally forming the opening 31, the flat plate portion 32, and the connecting portion 33 by punching a flat plate member. In this case, the opening 31 passes through the side plate 23 and communicates the inside and the outside of the housing 20. The flat plate portion 32 is provided inside the opening portion 31 in the planar direction of the side plate 23, has a connection portion 321 with a part of the periphery connected to the side plate 23, and the terminal block 40 is detachably attached thereto. The connecting portion 33 connects the side plate 23 and the flat plate portion 32. The bending step is a step of bending the flat plate portion 32 so as to incline toward the inside of the housing 20 with the connection portion 321 as a fulcrum and bending the connecting portion 33 so as to extend to the inside of the housing 20.

  According to these, the connecting portion 33 connects the flat plate portion 32 and the side plate 23. For this reason, in the flat plate part 32 in which the pressing toward the inner side of the housing 20 is easily applied during wiring work for installation or maintenance of the outdoor unit 10, the rigidity against the pressing in the inner direction of the housing 20 is increased. Can do. That is, the connecting portion 33 functions as a reinforcing member that reinforces the flat plate portion 32, and can increase the rigidity of the flat plate portion 32, that is, the rigidity of the terminal block mounting portion 30.

  Further, the connecting portion 33 is formed to extend toward the inside of the housing 20 by forming a plurality of bent portions 333. Accordingly, the side plate 23, the flat plate portion 32, and the connecting portion 33 are integrally joined by the same material, in this case, a metal plate, without being joined by welding or an adhesive, or by using a fastening member or the like. Is formed. That is, the side plate 23, the flat plate portion 32, and the connecting portion 33 are integrally formed by the same member without having a joint portion.

  That is, the connecting portion 33 is formed integrally with the side plate 23 and the flat plate portion 32 instead of a sheet metal part or the like configured separately from the side plate 23 and the flat plate portion 32. According to this, it is not necessary to separately provide a reinforcing member such as a sheet metal part in order to increase the rigidity of the terminal block mounting portion 30. Therefore, an increase in the number of parts due to the provision of the connecting portion 33 can be suppressed. As a result, an increase in the number of assembling steps of the outdoor unit 10 can be suppressed, and consequently a decrease in manufacturability and an increase in manufacturing cost of the outdoor unit 10 can be suppressed.

  The width dimension of the connecting portion 33 is set to be six times or more the thickness dimension of the side plate 23, that is, the thickness dimension of the connecting portion 33. That is, if the width dimension of the connection part 33 is too small with respect to the thickness dimension of the connection part 33, the rigidity of the connection part 33 will become small. Then, the connection part 33 cannot fully exhibit the function as a reinforcement member of the terminal block attaching part 30, but may break at the time of processing, and processing becomes difficult. On the other hand, when the width dimension of the connection part 33 is 6 times or more with respect to the thickness dimension of the connection part 33, this inventor can fully ensure the rigidity of the connection part 33, and is processed. I found it easier to do. That is, according to this, workability can be improved while ensuring the rigidity of the connecting portion 33.

In addition, the length dimension, arrangement | positioning, etc. of the connection part 321 or the connection part 33 are not restricted above, It can change suitably with the size, arrangement | positioning, etc. of the flat plate part 32. FIG.
Moreover, the housing | casing 20 is not restricted to what was formed in the box shape combining the front plate 21, the top plate 22, and the side plate 23 which were formed separately, These front plate 21, the top plate 22, and the side plate 23 comprise It may be configured integrally.

  Although one embodiment of the present invention has been described above, this embodiment is presented as an example and is not intended to limit the scope of the invention. The novel embodiment can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. This embodiment and its modifications are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  In the drawings, 10 is an outdoor unit, 20 is a housing, 23 is a side plate, 30 is a terminal block mounting part, 31 is an opening, 32 is a flat plate part, 321 is a connection part, 33 is a connection part, 333 is a bending part, 40 Indicates a terminal block.

Claims (4)

A box-shaped housing;
A terminal block mounting portion for mounting a terminal block provided on a side plate constituting the housing and to which electric wiring is connected;
The terminal block mounting portion is
An opening provided in the side plate and communicating between the inside and the outside of the housing;
A flat plate portion on which a part of the periphery of the opening portion has a connection portion connected to the side plate, is inclined so as to be bent toward the inside of the housing with the connection portion as a fulcrum, and the terminal block is attached to the flat plate portion ,
A connecting portion formed between the side plate and the upper portion of the flat plate portion so as to extend toward the inside of the housing by forming a plurality of bent portions;
The side plate, the flat plate portion, and the connecting portion are integrally formed,
The connecting portion includes a plurality of bent portions between a side plate side end portion that is a boundary portion between the connecting portion and the side plate, and a flat plate portion side end portion that is a boundary portion between the connecting portion and the flat plate portion. Is formed so as to extend toward the inside of the housing,
Outdoor unit for refrigeration cycle equipment. The width dimension of the connecting portion is set to 6 times or more the thickness dimension of the side plate,
The outdoor unit of the refrigeration cycle apparatus according to claim 1. A terminal block to which electrical wiring is connected;
A terminal block mounting portion provided on the casing and mounting the terminal block on the casing;
The terminal block mounting portion is
A connection part in which a part of the periphery of the opening provided in the case is continuous with a part of the case;
A flat plate portion provided continuously with the connection portion inside the opening and to which the terminal block is attached;
And at least one connecting part that is provided at a position different from the connecting part and connects between a part of the housing and the upper part of the flat plate part,
The housing, the flat plate portion, and the connecting portion are integrally formed ,
The connecting portion is between a side plate side end portion which is a boundary portion between the connecting portion and the side plate constituting the housing, and a flat plate portion side end portion which is a boundary portion between the connecting portion and the flat plate portion. Is formed so as to extend toward the inside of the housing, by forming a plurality of bent portions.
Outdoor unit for refrigeration cycle equipment. A method for manufacturing an outdoor unit of a refrigeration cycle apparatus,
In the manufacturing process of the side plate of the casing of the outdoor unit,
There is an opening that passes through the side plate and communicates the inside and the outside of the housing, and a connection portion that is provided inside the opening in the planar direction of the side plate and a part of the periphery of which is connected to the side plate. and a flat portion which terminal block is attached to a flat plate portion which is a boundary portion between the flat portion and the side plate side end portion which is a boundary portion between linked the side plate between the upper portion of the side plate and said plate A punching step of punching a flat plate member and integrally forming a connecting portion formed in a meandering manner while bending between the side end portions,
The flat plate portion is bent so as to incline toward the inside of the housing with the connection portion as a fulcrum, a side plate side end portion that is a boundary portion between the connecting portion and the side plate, the connecting portion and the flat plate portion. A bending step of bending the connecting portion so as to extend to the inside of the housing by forming a plurality of bent portions between the flat plate portion side end portion which is a boundary portion between
The manufacturing method of the outdoor unit of the refrigerating-cycle apparatus provided with.

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