JP5777579B2 - Refrigerator and method for manufacturing the refrigerator - Google Patents

Description

  The present invention relates to a refrigerator, and more particularly, to a refrigerator including an in-compart mounting structure to which an in-house part provided in a storage room is attached, and a method for manufacturing the refrigerator.

  The outline of the conventional refrigerator is composed of a heat insulating box. The heat insulating box includes an outer box, an inner box, and a foam heat insulating material filled in a space between them. In recent years, in order to respond to market demands such as improved energy saving and increased capacity, vacuum insulation material with lower thermal conductivity than conventional foam insulation is placed in the space between the outer box and the inner box to save energy. Improvement and reduction of wall thickness (insulation thickness) of heat insulation box are realized. The heat insulation box provided with the vacuum heat insulating material is installed in the heat insulating box body so that the side surface of the vacuum heat insulating material is in contact with the side surface of the outer box, and the space between the outer box and the inner box is filled with foam heat insulating material and foamed. Formed with.

  The inside of such a heat insulating box (the inner peripheral space of the inner box) has several different temperature zones depending on the application, such as a refrigerator room, a freezer room, a vegetable room, and an ice making room in order to store food as a refrigerator. Divided into storage rooms. Some heat insulation boxes are provided with internal components such as food shelves that further divide the refrigerator compartment. In the conventional heat insulation box provided with such an internal part, an internal part mounting structure for attaching the internal part is provided in the internal box in order to hold the internal part.

  For example, “in the freezer compartment 2 or the refrigerator compartment 3, a large number of pin holes 8 are provided on both side surfaces thereof. The pins 9 can be attached to and detached from each other, and by attaching the pins 9 to the plurality of pin holes 8 facing each other on both side surfaces, the attached pins 9 become support members for the shelf board 7. The inner box 34 9 is provided with depressions 34a for each vertical row of the pin holes 8 in Fig. 9, and an opening 34b is provided for each pin hole 8 in each of the depressions 34a. A pin support plate 49 is fitted into the pin support plate 49. The pin support plate 49 has a plurality of convex portions 49a in which pin holes 8 are formed in a row, and a claw portion 49b is formed below the base of the convex portions 49a. The pin support plate 49 has its convex part 4 a is inserted into each of the opening portions 34b of the recessed portion 34a of the inner box 34. In such a state, the claw portion 49b, the pin support plate 49 main body, The edge of the opening 34b of the inner box 34 is inserted between the pin support plate 49 and the recessed portion 34a, and the sealing material 50 is pasted on the back surface of the pin support plate 49. When the pin support plate 49 is fitted into the recessed portion 34a of the inner box 34, the sealing material 50 closes the opening 34b into which the convex portion 49a of the recessed portion 34a is inserted. And the inner box 34 are assembled, the pin support plate 49 is attached to the recess 34a of the inner box 34 and the foamable heat insulating material 45 is filled, and the convex portions 49a of the pin support plate 49 bite into the heat insulating material 45, Pin support plate 49 is inside In this case, the heat insulating material 45 is not leaked to the outside when the foaming material is foamed by the sealing material 50 ”(see Patent Document 1). Has been.

  Moreover, as the internal component mounting structure provided in the conventional refrigerator, for example, “a vacuum filled in the outer box 2, the inner box 3, and the space 16 between the outer box 2 and the inner box 3. The shelf stopper 8 provided in the refrigerator having the heat insulating material 17 is attached to the inner box 3 by being screwed into the shelf stopper mounting member 10 provided on the space 16 side of the inner box 3 with a screw 9 from the inside of the warehouse. The shelf stopper mounting member 10 is formed so that almost all of the screwing portions 14 in the screw receiving portion 12 protrude to the inside of the warehouse through the through holes 13 formed in the inner box 3 ”(see Patent Document 2). This has been proposed. Patent Document 2 also discloses a configuration in which the inner box and the shelf stopper mounting member are bonded with an adhesive before foaming and filling the space between the inner box and the outer box with the foam heat insulating material.

Japanese Patent Laid-Open No. 5-180557 (paragraphs [0034], [0065], [0066], FIGS. 1, 9, 11, 12, 13) JP-A-6-213559 (Summary, paragraph [0030], FIG. 1)

However, the conventional refrigerator having the internal component mounting structure has the following problems.
For example, the refrigerator described in Patent Document 1 requires an operation of attaching a sealing material to the outer box side surface of the inner box when the internal component mounting structure is provided in the heat insulating box. For this reason, the refrigerator described in Patent Document 1 has a problem that the work of attaching the internal component mounting structure to the heat insulating box becomes complicated. In particular, when a sealing material is applied to a heat insulating box in a line operation in which the heat insulating box is conveyed by a belt conveyor or the like, the sticking workability of the sealing material is deteriorated and the installation work becomes complicated. . Moreover, when sticking a sealing material to a heat insulation box body in line work, dispersion | variation will arise in the positioning accuracy of a sealing material according to an operator's skill level. For this reason, if the positioning accuracy of the sealing material is poor, the sealing material is pushed out by the foaming pressure of the foaming heat insulating material in the process of filling and foaming the space between the outer box and the inner box with the foaming heat insulating material. There was also a problem of leakage.

  Moreover, the refrigerator of patent document 2 becomes a structure which attaches a shelf stopper attachment member to an inner box by inserting a screw receiving part in the through-hole of an inner box. For this reason, there is a problem that the shelf stopper mounting member is detached and the foam heat insulating material leaks out in the foam filling process of the foam heat insulating material. Further, Patent Document 2 discloses a configuration in which the shelf stopper mounting member is attached to the inner box with an adhesive. However, when the shelf stopper mounting member is attached to the inner box with an adhesive, it takes time to dry the adhesive. There is a problem that the number of working steps increases. In addition, in the configuration in which the shelf stopper mounting member is attached to the inner box with an adhesive, the adhesive application accuracy varies depending on the operator, so if the amount of adhesive applied is small, foam filling with foam insulation The problem of foam insulation leaking out during the course still cannot be solved. Moreover, the refrigerator of patent document 2 becomes a structure which attaches the component in a warehouse (shelf stopper in patent document 2) by screwing a screw in the screwing part of the screw receiving part of a shelf stopper attachment member. . For this reason, the refrigerator described in Patent Document 2 has a problem that burrs due to torsion remain in the storage chamber at the time of mounting the internal part, and a problem that the number of mounting steps for the internal part increases. It was.

  The present invention has been made to solve the above problems, and the first object is to simplify the internal component mounting structure and reduce work man-hours and work variations when mounting the internal component structure. It is obtaining the refrigerator which can be suppressed and the manufacturing method of this refrigerator.

  Moreover, the 2nd objective is by obtaining the refrigerator which can make the wall surface thickness (heat insulation thickness) of a heat insulation box thin, and the manufacturing method of this refrigerator, preventing the damage to a vacuum heat insulating material. is there.

The refrigerator according to the present invention has an inner box, an outer box, and at least a foam heat insulating material in a space between the inner box and the outer box, and a storage chamber is formed on the inner peripheral side of the inner box. A refrigerator comprising a heat insulating box and at least one internal part mounting structure provided in the inner box and attached to the internal part provided in the storage chamber, wherein the inner box includes the outer box An inner box convex portion protruding to the side is formed, an inner box through hole is formed in the inner box convex portion, and the internal part mounting structure includes a bush concave portion into which the inner box convex portion is inserted, the inner box A bushing convex part that penetrates the through hole and protrudes toward the storage chamber, and a holding concave part that opens to the distal end side of the bushing convex part and holds the in-chamber part, and the outer peripheral part of the bushing concave part The bush which contacts the surface of the inner box on the outer box side, and the storage room side of the heat insulating box body A bush fixture that is inserted into a box convex portion, sandwiches the inner box together with the bush, and is formed with an insertion portion into which the bush convex portion is inserted, and the bush and the bush fixture in a state where the inner box is sandwiched, the chamber internal parts mounting structure is that the inner box protrusions at least on the bush recess the bushing is positioned by being inserted.

  The refrigerator manufacturing method according to the present invention includes a first step of sandwiching the inner box by the bush and the bush fixture, and the inner box and the outer box are combined after the first step, A second step of filling the space between the inner box and the outer box with the foam heat insulating material.

In the refrigerator according to the present invention, a bush is disposed on the outer box side surface of the inner box, and the inner box is sandwiched between the bush and a bush fixture provided on the storage chamber side, whereby the internal component mounting structure is provided. It can be attached to an insulated box. For this reason, the refrigerator according to the present invention can easily attach the in-box component mounting structure to the inner box even if the inner box flows on the belt conveyor, for example, in line work, etc. Can be suppressed. Moreover, the internal component mounting structure of a refrigerator according to the present invention, Uchihakototsu portion on at least the bush recesses bushing is positioned by being inserted. For this reason, the refrigerator according to the present invention can attach the in-box component mounting structure to the inner box with high positioning accuracy regardless of which worker is attached, and can suppress work variations when mounting the in-box component mounting structure. Quality can be stabilized.

It is a front view which shows the heat insulation box of the refrigerator which concerns on Embodiment 1 of this invention. It is a perspective view which shows the interior component attachment structure vicinity (A part vicinity of FIG. 1) provided in the heat insulation box of the refrigerator which concerns on Embodiment 1 of this invention. It is a perspective view which shows the attachment method of the component mounting structure in a warehouse provided in the heat insulation box of the refrigerator which concerns on Embodiment 1 of this invention. It is ZZ sectional drawing of FIG. It is a side view which shows the food shelf which is an example of the internal component of the refrigerator which concerns on Embodiment 1 of this invention. It is a perspective view which shows the attachment direction of the food shelf which is an example of the components in the refrigerator compartment which concern on Embodiment 1 of this invention. It is a longitudinal cross-sectional view which shows the interior component attachment structure vicinity provided in the heat insulation box of the refrigerator which concerns on Embodiment 2 of this invention. It is a cross-sectional view showing the vicinity of the internal component mounting structure provided in the heat insulating box of the refrigerator according to Embodiment 2 of the present invention.

Embodiment 1 FIG.
FIG. 1 is a front view showing a heat insulating box body of the refrigerator according to Embodiment 1 of the present invention. FIG. 2 is a perspective view showing the vicinity of the internal component mounting structure (near part A in FIG. 1) provided in the heat insulating box of the refrigerator. FIG. 3 is a perspective view showing a mounting method of the in-box component mounting structure provided in the heat insulating box of the refrigerator. FIG. 4 is a ZZ sectional view of FIG.

  The refrigerator 1 according to the first embodiment includes a heat insulating box 1 a that is an outline of the refrigerator 1. This heat insulation box 1a is comprised by combining the outer box 2 which mainly forms the outer peripheral surface of the heat insulation box 1a, and the inner box 3 which mainly forms the inner peripheral surface of the heat insulation box 1a. . And the heat insulation box 1a is filled with the foam heat insulating material 5 in the heat insulating material filling space 4 between the inner peripheral side of the outer box 2 and the outer peripheral side of the inner box 3 (refer FIG. 4). The outer box 2 and the inner box 3 are joined by the foam heat insulating material 5.

The heat insulating box 1a configured in this way is formed with a storage chamber opened forward in the inside (that is, the inner peripheral side of the inner box 3). Moreover, the heat insulation box 1a which concerns on this Embodiment 1 is divided into the internal space by the some partition 1b, and suits the user's usage forms, such as the refrigerator compartment 30, the freezer compartment 31, the vegetable compartment 32, and the ice making compartment 33. Several storage rooms with different temperature zones are formed. In addition, a food shelf 40 that further divides the storage chamber is provided in the storage chamber (for example, in the refrigerator compartment 30). The interior part mounting structure 10 is provided on the wall surface (more specifically, the side surface) of the heat insulating box 1a, and the food shelf 40 is attached to the interior part mounting structure 10.
In addition, the opening part ahead of the heat insulation box 1a is obstruct | occluded by the double doors and the drawer-type door (not shown) for every store room. Further, a drawer-type door is often provided with a basket-like storage case that moves in the front-rear direction together with the door.

(Detailed configuration of internal parts mounting structure)
Then, the detailed structure of said in-compartment component attachment structure 10 to which the food shelf 40 is attached is demonstrated using FIGS.
The inner box 3 protrudes in a substantially square shape on the outer box 2 side (in other words, formed in a concave shape when viewed from the storage chamber side and formed in a convex shape when viewed from the outer box 2 side). Part 3a is formed. Further, an inner box through hole 3b is formed in, for example, a substantially central portion of the inner box convex portion 3a. Each internal part mounting structure 10 is provided in the vicinity of the inner box convex portion 3a, and most of the inner part mounting structure 10 is embedded in the outer box 2 side of the wall surface of the inner box 3, and the bush 11 and the bush fixture 16 are provided. I have.

  The bush 11 is provided so as to contact the surface of the inner box 3 on the outer box 2 side. A bush recess 12 into which the inner box convex portion 3a is inserted is formed on the surface of the bush 11 facing the inner box 3. The shape of the inner peripheral part of this bush recessed part 12 is formed substantially the same as the shape of the outer peripheral part of the inner box convex part 3a. For this reason, the bush 11 can be positioned in the up-down direction and the front-rear direction of the storage chamber by inserting the inner box convex portion 3 a into the bush concave portion 12.

  Further, a bush convex portion 13 that protrudes from the bush concave portion 12 toward the inner box 3 side is formed on the surface of the bush 11 that faces the inner box 3. This bush convex part 13 is inserted into the inner box through hole 3b of the inner box convex part 3a when the inner box convex part 3a is inserted into the bush concave part 12. In a state where the inner box convex portion 3a is inserted into the bush concave portion 12 and the outer peripheral portion of the bush concave portion 12 is brought into contact with the inner box 3 on the outer peripheral side of the inner box convex portion 3a, the tip portion of the bush convex portion 13 is It will be in the state which protruded from the wall surface of the inner box 3 slightly. The bush convex portion 13 is formed with a holding concave portion 14 that opens to the tip end side of the bush convex portion 13 (that is, opens to the storage chamber side). The holding recess 14 holds (holds in) a mounting portion (for example, a holder 19 described later) of the internal mounting component. Therefore, the opening shape of the holding recess 14, that is, the cross-sectional shape of the holding recess 14 perpendicular to the protruding direction of the bush protruding portion 13 is the shape of the mounting portion (for example, a holder 19 described later) of the in-chamber mounting component. It has a corresponding shape (for example, a horizontally long rectangular parallelepiped shape).

  In addition, the bush 11 is formed with an engaging claw 15 that engages with a notch 18 of a bush fixture 16 to be described later at the tip of the bush convex portion 13. In the bush 11, a flange 11 a that is in contact with the inner box 3 on the outer peripheral side of the inner box convex part 3 a is formed on the outer peripheral part of the bush concave part 12. By forming the flange 11a, the adhesiveness between the bush 11 and the inner box 3 is further improved. Therefore, when the heat insulating material filling space 4 is filled with the foam heat insulating material 5, the storage chamber is formed between the bush 11 and the inner box 3. It can suppress more that the foaming heat insulating material 5 leaks to the side.

  The bush fixture 16 is inserted into the inner box convex portion 3a from the storage chamber side, and the shape of the outer peripheral portion of the bush fixture 16 is substantially the same as the shape of the inner peripheral portion of the inner box convex portion 3a. It has become. For this reason, the bush fixture 16 can be positioned in the up-down direction and the front-rear direction of the storage chamber by inserting the bush fixture 16 into the inner box convex portion 3a. In addition, an insertion portion 17 in which a through hole into which the bush convex portion 13 of the bush 11 is inserted is formed, for example, at a substantially central portion of the bush fixture 16. At the end of the insertion portion 17 on the storage chamber side, a notch 18 is formed in which the engagement claw 15 of the bush 11 is engaged, in other words, the engagement claw 15 of the bush 11 is caught. That is, the bush 11 and the bush fixture 16 are internally inserted by inserting the bush protrusion 13 of the bush 11 into the insertion portion 17 and engaging the engaging claw 15 of the bush 11 with the notch 18 of the bush fixture 16. Holding the box 11 (more specifically, the front end surface of the inner box convex portion 3a), and the bush 11 so that the outer peripheral portion of the bush concave portion 12 contacts the inner box 3 on the outer peripheral side of the inner box convex portion 3a. 3 can be fixed. In a state where the inner box 3 is sandwiched between the bush 11 and the bush fixture 16, the tip end portion of the bush convex portion 13 of the bush 11 and the storage chamber side end portion of the insertion portion 17 of the bush fixture 16 are substantially in the same position. It has become.

  As described above, the bush 11 is positioned between the bush 11 and the inner box convex portion 3a. For this reason, it is not always necessary to position the bush fixture 16 between the bush fixture 16 and the inner box convex portion 3a, and the outer peripheral portion of the bush fixture 16 is formed smaller than the shape of the inner box convex portion 3a. May be. Thus, even if the bush fixture 16 is formed, the bush 11 can be attached to the inner box 3 with high accuracy.

(How to install the parts in the warehouse)
Then, the detailed structure of the food shelf 40 which is an in-compartment part attached to the in-compartment mounting structure 10 is demonstrated.

FIG. 5 is a side view showing a food shelf that is an example of the internal component of the refrigerator according to Embodiment 1 of the present invention. FIG. 6 is a perspective view showing the mounting direction of the food shelf.
Hereinafter, the detailed configuration of the food shelf 40 will be described with reference to FIGS. 5 and 6 and FIGS. 2 to 4 described above.

  The food shelf 40 further divides the storage chamber and includes a shelf plate 42. The food shelf 40 according to the first embodiment also includes a holder 19 that is inserted into the holding recess 14 of the internal component mounting structure 10. The shelf plate 42 is configured to be attached to the holder 19.

  As described above, the holder 19 is inserted into the holding concave portion 14 of the internal component mounting structure 10. The width and height of the holder 19 are smaller than the width and height of the holding recess 14. For this reason, even after the holder 19 is inserted into the holding recess 14, the holder 19 has a degree of freedom, and when a force is applied, the holder 19 can slide within the holding recess 14. That is, the holder 19 is slidably held in the holding recess 14. In the state in which the holder 19 is held in the holding recess 14, the holder 19 is in a state in which the storage chamber side tip portion protrudes more toward the storage chamber than the internal component mounting structure 10. The holder 19 is formed of, for example, a metal plate, and has, for example, two pin holes 20 through which a pin 41b described later is inserted in the front end portion on the storage chamber side.

  The shelf plate 42 further partitions the storage chamber as described above, and is formed in a substantially rectangular parallelepiped flat plate shape. A leg portion 41 attached to the holder 19 is formed below the shelf plate 42. In the first embodiment, the food shelf 40 is held by the in-box component mounting structure 10 provided on each side surface of the inner box 3. That is, the shelf plate 42 is held by the holders 19 inserted into the holding recesses 14 of the four internal component mounting structures 10. For this reason, the leg part 41 is formed in the shelf board 42 which concerns on this Embodiment 1 in the position (namely, four places) corresponding to the said four internal component attachment structures 10. FIG. Each of the leg portions 41 includes a leg portion cover 41a and a pin 41b. The leg cover 41 a extends downward from, for example, the lower surface of the shelf plate 42, and has a shape in which the outer side (side surface side of the opposing inner box 3) is recessed. The pin 41 b is inserted into the pin hole 20 of the holder 19. In the first embodiment, two pins 41 b are provided corresponding to the number of pin holes 20. These pins 41b are provided on the side of the leg cover 41a facing the inner box 3, that is, on the concave side of the leg cover 41a.

  As shown in FIG. 6, the shelf plate 42 is coupled to the holder 19 in the front-rear and left-right directions by moving the shelf plate 42 downward from the top and inserting the pins 41 b into the pin holes 20 of the holder 19 from above. , And held in the in-compart mounting structure 10 via the holder 19. At this time, the internal component mounting structure 10, the holder 19, and the pin 41b are covered with the leg cover 41a. For this reason, since the in-comparts mounting structure 10, the holder 19, and the pin 41b are not visible to the user of the refrigerator 1, the refrigerator 1 having the food shelf 40 with excellent design can be obtained.

  Here, the heat insulation box 1a is dimensioned for each heat insulation box 1a depending on the component accuracy of the outer box 2 and the inner box 3, the pressure applied to the outer box 2 and the inner box 3 in the foaming process of the foam heat insulating material 5, and the like. May vary. For this reason, the internal components held by the internal component mounting structure 10 provided on both side surfaces of the inner box 3 such as the food shelf 40 are attached to the storage chamber depending on the dimensional variation of the heat insulating box 1a. May be difficult. However, by attaching the shelf plate 42 via the holder 19 as in the first embodiment, even if the dimensions vary for each heat insulating box 1a, the holder 19 is provided with the holding recess 14 of the internal component mounting structure 10. Since the dimensional dispersion | variation of the heat insulation box 1a can be absorbed by sliding in, the food shelf 40 can be attached to a storage chamber reliably.

(Insulation box manufacturing method)
Then, the manufacturing method of the heat insulation box 1a is demonstrated.
When manufacturing the heat insulation box 1a, the internal component attachment structure 10 is first attached to the inner box 3 (first step). Specifically, from the outer box 2 side, the bush protrusion 13 of the bush 11 is inserted into the inner box through hole 3b of the inner box protrusion 3a, and the inner box protrusion of the inner box 3 is inserted into the bush recess 12 of the bush 11. 3a is inserted. On the other hand, from the storage chamber side, the bush fixture 16 is inserted into the inner box convex portion 3 a, and the bush convex portion 13 of the bush 11 is inserted into the insertion portion 17 of the bush fixture 16. Thereby, the engaging claw 15 of the bush 11 is engaged with the notch 18 of the bush fixture 16, and the bush 11 can be held by the bush fixture 16. In other words, the inner box 3 (more specifically, the front end surface of the inner box convex portion 3a) can be held between the bush 11 and the bush fixture 16.

  At this time, the bush 11 can be positioned between the bush 11 and the inner box convex portion 3a, and the bush fixture 16 can be positioned between the bush fixture 16 and the inner box convex portion 3a. Is easy to position. Further, by sandwiching the inner box 3 (more specifically, the front end surface of the inner box convex portion 3a) between the bush 11 and the bush fixture 16, the outer peripheral portion (more specifically, the flange 11a) of the bush concave portion 12 becomes the inner box. It contacts the inner box 3 which becomes the outer peripheral side of the convex part 3a. That is, the internal component mounting structure 10 according to the first embodiment can secure the adhesion between the bush 11 and the inner box 3 only by engaging the bush 11 and the bush fixture 16. For this reason, the in-chamber component mounting structure 10 according to the first embodiment is different from the conventional one in order to secure the adhesion between the bush 11 and the inner box 3 and to apply a sealant or adhesive. Application is unnecessary. Therefore, since the internal component mounting structure 10 according to the first embodiment can secure the adhesion between the bush 11 and the inner box 3 without being affected by the work variation of the operator, the foam heat insulating material 5 described later. In the filling step, it is possible to stably prevent the foam heat insulating material 5 from leaking.

  Note that the mounting operation of the above-described internal component mounting structure 10 may be performed on a stopped work table, or may be during a line operation performed while the inner box 3 is being conveyed by a belt conveyor or the like.

  After the internal component mounting structure 10 is attached to the inner box 3, the inner box 3 and the outer box 2 are combined. And the raw material of the foam heat insulating material 5 is inject | poured into the heat insulating material filling space 4 between the inner peripheral side of the outer box 2 and the outer peripheral side of the inner box 3, and it is made to foam, and the foam heat insulating material 5 is made into the heat insulating material filling space 4. Fill (second step). As described above, the in-chamber component mounting structure 10 according to the first embodiment can secure the adhesion between the bush 11 and the inner box 3 without being affected by the work variation of the operator. In the filling process of the material 5, it is possible to stably prevent the foam heat insulating material 5 from leaking.

  As described above, the refrigerator 1 configured as in the first embodiment can easily attach the internal component mounting structure 10 to the inner box 3 only by engaging the bush 11 and the bush fixture 16. it can. For this reason, it becomes possible to raise the efficiency of the attachment operation | work of the component mounting structure 10 in a store | warehouse | chamber, and can suppress the installation operation man-hour of the component mounting structure 10 in a store | casing conventionally. Therefore, even when the internal component mounting structure 10 is attached to the inner box 3 while the inner box 3 is being conveyed by a belt conveyor or the like, the cycle time of the mounting operation can be shortened. It is also possible to reduce the number of personnel required for manufacturing the refrigerator 1.

  Moreover, the refrigerator 1 which concerns on this Embodiment 1 can position the internal component attachment structure 10 easily only by engaging the bush 11 and the bush fixing tool 16. FIG. For this reason, the refrigerator 1 which concerns on this Embodiment 1 can aim at stabilization of the quality of the refrigerator 1 without being influenced by the operation | work dispersion | variation of an operator. Moreover, since the refrigerator 1 which concerns on this Embodiment 1 can ensure the adhesiveness between the bush 11 and the inner case 3 only by engaging the bush 11 and the bush fixing tool 16, it influences a worker's work dispersion | variation. The leakage of the foam heat insulating material 5 can be prevented stably and the quality of the refrigerator 1 can be stabilized.

  In addition, the refrigerator according to the first embodiment attaches the internal component held by the internal component mounting structure 10 provided on both side surfaces of the inner box 3 like the food shelf 40 via the holder 19. A shelf plate 42 is attached. For this reason, in the refrigerator according to the first embodiment, the holder 19 slides in the holding concave portion 14 of the in-chamber component mounting structure 10 even when the dimensions vary for each heat insulating box 1a. Therefore, the food shelf 40 can be securely attached to the storage room (the hanging margin of the shelf plate 42 can be appropriately maintained).

  In the first embodiment, the food shelf 40 has been described as an example of the in-compartment part. However, the in-house part attached to the in-compartment mounting structure 10 is not limited to the food shelf 40. For example, when a food shelf movable in the front-rear direction is provided in the storage room, or when the front opening of the storage room is closed with a drawer-type door, a rail or drawer that slidably supports the side of the food shelf A rail that slidably supports an arm portion (or a roller provided on the arm portion) extending downward from the type door is provided in the storage chamber. For example, pins or the like may be provided on these rails, the pins may be inserted into the holding recesses 14 of the in-house component mounting structure 10, and these rails may be attached to the in-house component mounting structure 10. Also, when food shelves that can be moved in the front-rear direction are provided in the storage room, or when the front opening of the storage room is closed with a drawer-type door, the amount of food shelf or the pull-out door that protrudes forward is regulated. Therefore, a stopper may be provided in the storage chamber. For example, a pin or the like may be provided on the stopper, and the pin may be inserted into the holding recess 14 of the in-chamber component mounting structure 10 so that the stopper is attached to the in-chamber component mounting structure 10.

Embodiment 2. FIG.
In Embodiment 1, the refrigerator 1 including the heat insulating box 1a filled with the foam heat insulating material 5 between the outer box 2 and the inner box 3, and having the internal component mounting structure 10 provided on the heat insulating box 1a. explained. Not only this but the refrigerator provided with the heat insulation box 1a by which the vacuum heat insulating material and the foam heat insulating material 5 were filled between the outer box 2 and the inner box 3 can also be provided with the component mounting structure 10 in a warehouse. . Note that a configuration not particularly described in the second embodiment is the same as that of the first embodiment, and the same function and configuration are described using the same reference numerals.

  FIG. 7: is a longitudinal cross-sectional view which shows the component mounting structure vicinity provided in the heat insulation box of the refrigerator which concerns on Embodiment 2 of this invention. Moreover, FIG. 8 is a cross-sectional view showing the vicinity of the internal component mounting structure provided in the heat insulating box of the refrigerator. 7 is a drawing corresponding to the position of the ZZ cross section of FIG. 2, and FIG. 8 is a drawing corresponding to the position of the YY cross section of FIG.

  The heat insulation box 1a of the refrigerator 1 according to the second embodiment includes an outer box 2 that mainly forms the outer peripheral surface of the heat insulation box 1a, and an inner peripheral side of the outer box 2 and an outer peripheral side of the inner box 3. The heat insulating material filling space 4 is filled with a vacuum heat insulating material 6 and a foam heat insulating material 5. The vacuum heat insulating material 6 is bonded and fixed to the inner side surface of the outer box 2 by means such as double-sided tape or hot bond. The raw material of the foam heat insulating material 5 is injected between the inner peripheral side of the outer box 2 and the outer peripheral side of the inner box 3, and in the range where the vacuum heat insulating material 6 is not disposed, the raw material is added to the entire heat insulating material filling space 4. In the range where the vacuum heat insulating material 6 is disposed, the raw material is foamed in the foam heat insulating material filling space 5 a between the vacuum heat insulating material 6 and the inner box 3, and these spaces are filled with the foam heat insulating material 5. By doing so, the outer box 2 and the inner box 3 are combined.

  Moreover, the heat insulation box 1a which concerns on this Embodiment 2 has the condensation piping (not shown) which bears the condensation process in a refrigerating cycle being affixed on the inner side surface of the outer box 2 with the aluminum tape. For this reason, in the vacuum heat insulating material 6 installed in a range facing the condensing pipe, a concave groove-shaped condensing pipe escape portion 8 is formed so that the vacuum heat insulating material 6 straddles the condensing pipe.

  In addition, the heat insulating box 1a according to the second embodiment increases the thickness of the vacuum heat insulating material 6 having low thermal conductivity as much as possible in order to minimize the wall thickness (heat insulating thickness) of the heat insulating box 1a. I am letting. For this reason, the foam heat insulating material passage width 7 (the space between the vacuum heat insulating material 6 and the inner box 3) of the foam heat insulating material filling space 5a is suppressed to a minimum width that can ensure the fluidity of the foam heat insulating material 5. ing. Thereby, while maintaining or improving the heat insulation performance of the heat insulation box 1a, the wall surface thickness (heat insulation thickness) of the heat insulation box 1a is made thin, and the internal volume expansion of the refrigerator 1 and the improvement in energy saving performance are realized.

  In the heat insulation box 1a configured as described above, when the internal component mounting structure 10 is to be provided in the range where the vacuum heat insulating material 6 is disposed, the bush 11 of the internal component mounting structure 10 is a foam heat insulating material. It will be buried in the filling space 5a (between the vacuum heat insulating material 6 and the inner box 3). For this reason, in the bush 11 according to the second embodiment, the thickness of the portion protruding from the inner box 3 to the outer box 2 side (hereinafter referred to as the thickness on the heat insulating side) is the foam heat insulating material in the foam heat insulating material filling space 5a. The channel width is 7 or less. In addition, as described above, the heat insulating box 1a according to the second embodiment increases the thickness of the vacuum heat insulating material 6 having a low thermal conductivity as much as possible, so that the foam heat insulating material flow path width 7 is expanded. The minimum width that can ensure the fluidity of the heat insulating material 5 is suppressed. For this reason, in the heat insulation box 1a which concerns on this Embodiment 2, when it is going to provide the internal component attachment structure 10 in the range by which the vacuum heat insulating material 6 is arrange | positioned, the vacuum heat insulating material 6 and the bush 11 contact. In some cases. Therefore, in this Embodiment 2, the surface which opposes the vacuum heat insulating material 6 of the bush 11 is made into the planar shape.

  As described above, the refrigerator 1 configured as in the present embodiment 2 reduces the thickness of the heat insulating side of the bush 11 to the foam heat insulating material flow path width 7 or less of the foam heat insulating material filling space 5a. The surface facing the vacuum heat insulating material 6 has a planar shape. For this reason, in the refrigerator 1 according to the second embodiment, even when the vacuum heat insulating material 6 and the bush 11 are in contact with each other, the vacuum heat insulating material 6 is damaged and the vacuum degree of the vacuum heat insulating material 6 is reduced. It can prevent that the heat insulation performance of the vacuum heat insulating material 6 falls and the heat insulation performance of the heat insulation box 1a falls. Therefore, the refrigerator 1 according to the second embodiment can minimize the wall thickness (heat insulation thickness) of the heat insulation box 1a, and the internal volume compared to the conventional refrigerator having the same width as the refrigerator 1. Can be expanded.

  1 Refrigerator, 1a Heat insulation box, 1b Partition, 2 Outer box, 3 Inner box, 3a Inner box convex part, 3b Inner box through-hole, 4 Heat insulation material filling space, 5 Foam heat insulation material, 5a Foam heat insulation material filling space, 6 Vacuum insulation material, 7 Foam insulation material flow path width, 8 Condensate pipe escape part, 10 Internal part mounting structure, 11 Bush, 11a flange, 12 Bush recessed part, 13 Bushed convex part, 14 Retained recessed part, 15 Engaging claw, 16 Bush fixture, 17 Insertion part, 18 Notch, 19 Holder, 20 Pin hole, 30 Refrigeration room, 31 Freezing room, 32 Vegetable room, 33 Ice making room, 40 Food shelf, 41 Leg part, 41a Leg part cover, 41b Pins, 42 shelves.

Claims (4)

An inner box, an outer box, and a heat insulating box body having at least a foam heat insulating material in a space between the inner box and the outer box, and a storage chamber formed on the inner peripheral side of the inner box;
Provided in the inner box, at least one in-comparts mounting structure to which the in-house parts provided in the storage chamber are attached,
A refrigerator comprising:
The inner box is formed with an inner box protrusion protruding toward the outer box, and the inner box protrusion is formed with an inner box through hole,
The internal component mounting structure is
A bush recess into which the inner box protrusion is inserted, a bush protrusion that protrudes through the inner box through-hole and protrudes toward the storage chamber, and an opening on the tip end side of the bush protrusion. A holding concave portion for holding, and a bushing in which an outer peripheral portion of the bush concave portion contacts a surface of the inner box on the outer box side;
A bush fixture that is inserted into the inner box convex portion from the storage chamber side of the heat insulation box, sandwiches the inner box together with the bush, and has an insertion portion into which the bush convex portion is inserted;
With
In a state where the inner box is sandwiched between the bush and the bush fixture,
The box internals mounting structure, a refrigerator, characterized in that said inner box protrusions at least on the bush recess the bushing is positioned by being inserted. In the space between the inner box and the outer box, a vacuum heat insulating material is provided on the outer box side,
The bush has a portion disposed between the inner box and the outer box, and is disposed between the vacuum heat insulating material and the inner box.
The refrigerator according to claim 1, wherein a surface of the bush facing the vacuum heat insulating material is formed in a planar shape. The internal part is a food shelf held by the internal part mounting structure provided on both side surfaces of the heat insulating box,
The food shelf is
A shelf board for partitioning the storage room;
A leg cover extending downward from the shelf;
A pin formed on the side of the leg cover facing the inner box;
A holder that is slidably held in the holding recess of the bush and protrudes toward the storage chamber, and a pin hole into which the pin is inserted is formed;
With
In a state where the pin is inserted into the pin hole of the holder and the food shelf is attached to the internal component mounting structure, the pin, the holder, and the internal component mounting structure are covered by the leg cover. The refrigerator according to claim 1 or 2, wherein the refrigerator is provided. It is a manufacturing method of the refrigerator as described in any one of Claims 1-3,
A first step of clamping the inner box by the bush and the bush fixture;
After the first step, combining the inner box and the outer box, a second step of filling the space between the inner box and the outer box with the foam insulation material,
The manufacturing method of the refrigerator characterized by the above-mentioned.

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