JP2004003795A - Attachment structure of defrosting heater of cooler - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate and ensure attachment/detachment of a defrosting heater. <P>SOLUTION: The defrosting heater 40 is disposed on the undersurface of a cooler 30 with a loop part 42 of its end coming into contact with the undersurface of a flange 37 that protrudes from lower edge of an end plate 32. On the other hand, a holder 50 is provided, when the root of the loop 42 is first fit into a U groove 52 and pushed against the end plate 32 with its coming into contact with the undersurface on the front end side of the flange 37, a lock plate 54 runs on the upper surface of the flange 37, and the flange 37 and the loop 42 are elastically inserted between the lock plate 54 and the U groove. Finally, when the holder 50 is screwed into the flange 37, the defrosting heater 40 is tightly fixed to the undersurface of the cooler 30 with its coming into contact with it. When the screw is unscrewed, the holder 50 is taken out of the flange 37, and the defrosting heater 40 is pulled downward, the defrosting heater 40 is detached. It is thus possible to rapidly attach/detach the defrosting heater 40. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a structure for attaching a defrost heater to a cooler provided in a cooling storage or the like.
[0002]
[Prior art]
For example, some commercial refrigerators include a defrost heater in a cooler in order to perform defrost in a short time. More specifically, a tubular defrost heater is disposed on at least one surface of the cooler while being bent in a meandering shape while being fitted into a U groove formed in the fin. In particular, in the case where the defrost heater is arranged on the lower surface side of the cooler, it is necessary to firmly fix the defrost heater because it may come off due to vibration during transportation. If it comes off, it may touch the resin parts such as cooling ducts arranged around the cooler to deform it during the defrosting operation, or the cooler will not be heated effectively and the defrosting time will increase. Occurs.
Therefore, conventionally, as shown in FIG. 19, the end of the defrost heater 1 is fitted into a U-groove 4 formed by cutting out the lower edge of the end plate 3 of the cooler 2, and one side edge piece 5 is attached thereto. It was fixed by caulking (for example, see Patent Document 1).
[0003]
[Patent Document 1]
JP-A-3-274370
[Problems to be solved by the invention]
However, the conventional method has a problem in that assembling work has to be performed at a large number of places, which takes a lot of time for assembly. In addition, when replacing the defrost heater after installing and using the refrigerator, it is necessary to replace the caulked portions one by one with pliers or the like, and then to install a new one, and in this case too much time is required. There were drawbacks.
The present invention has been completed on the basis of the above circumstances, and an object of the present invention is to make it possible to easily and reliably mount and remove a defrost heater.
[0005]
[Means for Solving the Problems]
As means for achieving the above object, a defrosting heater mounting structure for a cooler according to the invention of claim 1 is provided on one surface of a cooler in which an evaporating pipe is piped through a plurality of fins arranged in parallel. Is provided with a defrost heater, provided with a holder capable of receiving the end of the defrost heater, this holder is partially locked to the end plate provided in the cooler In addition, it is characterized in that it is configured to be detachable from the end plate by fastening means, and to be able to hold the defrost heater in contact with one surface of the cooler at the time of mounting.
[0006]
According to a second aspect of the present invention, in the first aspect, the end plate of the cooler is formed with a flange that is in contact with one surface of an end of the defrost heater, and the holder is provided with the holder, It has a locking plate that is locked to the flange, and a receiving plate that receives the other side of the end of the defrost heater, so that it can be inserted and withdrawn. The feature is that it can be attached to and detached from the flange.
According to a third aspect of the present invention, in the device according to the first aspect, a locked portion is protruded on a rear edge side of an end plate of the cooler, and a fastened portion is protruded on a front edge side, and the holder is provided with the holder. A locking portion that can be locked to the locked portion at a deep end of a receiving portion that receives an end portion of the defrost heater, and a fastening portion fastened to the fastened portion by the fastening means at a front end. It has a feature in the shape provided for each.
[0007]
The defrost heater mounting structure for a cooler according to the invention of claim 4 is such that a defrost heater is disposed on one surface of a cooler in which a plurality of fins are provided with evaporating pipes penetrating therethrough. Wherein a holder having a concave portion into which the end of the defrost heater can be press-fitted is provided, and fastening means for detachably fastening the holder to an end plate of the cooler is provided.
[0008]
Function and effect of the present invention
<Invention of claim 1>
The end of the defrost heater is received by the holder, and a part of the holder is fastened by the fastening means while being locked to the end plate, so that the defrost heater is firmly fixed in a state of being in contact with one surface of the cooler. Is done. After removing the fastening means, if the holder is removed while releasing the lock, the defrost heater is removed.
The defrosting heater can be quickly attached and detached by only locking or removing the holder with respect to the end plate and fastening and releasing the holder with a minimum of fastening means. Also, the heater replacement operation after installation can be performed easily and accurately. Further, since the caulking operation is not required, the heater is not damaged, and the occurrence of a failure of the heater can be prevented.
[0009]
<Invention of Claim 2>
The defrost heater is arranged on one surface of the cooler with its end abutting on the flange of the end plate. By mounting the holder, the flange and the end of the defrost heater are located between the locking plate and the receiving plate. Sandwiched. Finally, the holder plate of the holder is fastened to the flange by fastening means, so that the defrost heater is firmly fixed in a state of being in contact with one surface of the cooler. When the fastening means is removed and the holder is removed, the defrost heater is removed. The defrosting heater can be quickly attached and detached only by inserting and removing the holder, and by fastening and releasing by the fastening means.
<Invention of Claim 3>
The end of the defrost heater is received by the receiving portion of the holder, the locking portion at the back end of the holder is locked to the locked portion at the back edge of the end plate, and then the fastening portion at the front end is connected to the fastening portion at the front edge side. The defrost heater is firmly fixed in a state in which the heater is in contact with one surface of the cooler. The holder can be removed by releasing the locking after removing the fastening means, and the defrost heater is removed. The defrost heater can be quickly attached and detached simply by locking or removing the rear end side of the holder and fastening or releasing the front end side. In particular, since the back side, which is not visible and can be groped, has a locking structure, work can be performed efficiently.
[0010]
<Invention of Claim 4>
The holder is assembled to the defrost heater by pressing the end of the defrost heater into the recess, and the holder is fastened to the end plate of the cooler by fastening means, so that the defrost heater contacts one surface of the cooler. It is firmly fixed in the state where it was done. When the fastening means is removed and the holder is removed, the defrost heater is also removed.
By simply attaching and detaching the holder by the fastening means, the defrosting heater can be quickly attached and detached, and the initial assembling work and the heater replacing work after the installation can be performed easily and accurately. Further, since the caulking operation is not required, the heater is not damaged, and the occurrence of a failure of the heater can be prevented.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
<First embodiment>
A first embodiment of the present invention will be described with reference to FIGS.
First, the structure near the cooler room in the refrigerator of the present embodiment will be described with reference to FIG. An opening 11 is formed in the ceiling wall of the refrigerator body 10, and a mounting stand 15 on which a refrigerating device 12 including a compressor 13, a condenser 14, and the like is mounted is installed so as to cover the upper surface of the opening 11. At the same time, a drain pan 16 also serving as a cooling duct is stretched downward from the position of the lower edge on the front side (left side in the figure) of the opening 11 toward the back wall. A cooler room 17 is formed between the frame 15 and the gantry 15.
A cooler 30 is attached to the ceiling surface of the cooler room 17 in a suspended manner in a downwardly slanted posture via a bracket 18 and is circulated and connected to the above-described refrigeration apparatus 12 by a refrigerant pipe. Is configured. On the upper side of the drain pan 16, a cooling fan 19 is provided.
[0012]
During the cooling operation, when the refrigerating device 12 (compressor 13) and the cooling fan 19 are driven, as shown by the arrow in FIG. The air is sucked into the chamber 17, heat is exchanged while passing through the cooler 30, and cool air is generated, and the cool air is circulated such as to be blown out from the discharge port 21 into the cold storage chamber 20. The inside of 20 is cooled.
As will be described in detail later, a defrost heater 40 is provided on the lower surface of the cooler 30. During the defrost operation, the defrost heater 40 is energized to heat the cooler 30, and the cooler 30 is heated. After the defrost water from the above is dropped and received on the drain pan 16, the defrost water is discharged from the drain pipe 22 to the outside of the machine through a drain passage provided on the back wall.
[0013]
Subsequently, the mounting structure of the defrost heater 40 will be described in detail.
As shown in FIG. 2, the cooler 30 has a large number of fins 31 arranged side by side, and mounting end plates 32 disposed on both left and right sides thereof, and is opened in alignment with the fins 31 and the end plates 32. The evaporating pipe 34 is formed in a meandering manner through the through hole 33, and is formed in a block shape as a whole.
A defrost heater 40 is attached to the lower surface of the cooler 30.
[0014]
As shown in FIG. 3, the defrost heater 40 is formed in a slender tubular shape in a zigzag shape in a region slightly wider in the width direction than the area of the lower surface of the cooler 30. In detail, the adjacent ends of the plurality of linear portions 41 that are parallel to each other have a shape that is sequentially connected by a hairpin-shaped loop portion 42.
In order to dispose the defrost heater 40, a plurality of downward U-shaped grooves 36 are formed at the lower edge of each of the fins 31 at predetermined pitches so as to fit the linear portions 41.
[0015]
On the other hand, as shown in FIG. 4, the lower edge of the end plate 32 is fixed to a position on a predetermined dimension (a position deeper than the U groove 36) than the lower edge of the fin 31. From the lower edge of the end plate 32, a flange 37 is formed by being bent outward at right angles over the entire length.
Therefore, when the defrost heater 40 is applied to the lower surface of the cooler 30 while fitting the respective linear portions 41 into the U grooves 36, the respective loop portions 42 on both right and left ends of the defrost heater 40 are entirely formed on the lower surface of the flange 37. Is to be applied.
[0016]
In addition, a holder 50 is provided. The holder 50 is made of a metal plate. As a whole, as shown in FIG. 1, the holder 50 is formed in a shallow dish shape slightly wider than the above-described width of the flange 37 as viewed from the front and short in depth. ing. At the upper edge of the front plate 51 of the holder 50, a plurality of upward U-grooves 52 capable of fitting around the connection portions 43 between the linear portions 41 and the loop portions 42 of the defrost heater 40 are provided. Notches are formed at the pitch.
[0017]
At the upper edge of the rear plate 53 of the holder 50, a locking plate 54 is formed at a central portion in the width direction thereof, which is bent at a right angle to the front. As shown in FIG. 4, the locking plate 54 protrudes to a substantially intermediate position in the depth direction, and a guide portion 55 that is directed obliquely upward is formed at the distal end edge. The locking plate 54 locks the upper surface of the flange 37 when the holder 50 is applied to the lower surface of the loop portion 42 while fitting the vicinity of the connection portion 43 between the straight portion 41 and the loop portion 42 in the U groove 36. It is formed so as to come to a possible height position.
At the center position in the width direction on the rear edge side of the bottom plate 56 of the holder 50 and the position directly above the locking plate 54, an insertion hole 58 for a screw 57 is opened, and the flange 37 of the end plate 32 is opened. A screw hole 38 is formed at the corresponding position. The front plate 51 and the bottom plate 56 of the holder 50 correspond to the receiving plate of the present invention.
[0018]
Subsequently, the operation of the present embodiment will be described. When assembling the defrost heater 40, the defrost heater 40 is first applied to the lower surface of the cooler 30 while fitting each linear portion 41 into the downward U-shaped groove 36 of the fin 31 from below. Accordingly, as shown in FIG. 4, the respective loop portions 42 on both left and right ends of the defrost heater 40 are applied to the lower surface of the flange 37 of the end plate 32.
Next, as shown by a chain line in the figure, the holder 50 is brought in such a manner as to be located below the front end side of the flange 37, and is lifted as shown by an arrow X in the figure. As described above, the vicinity of the connection portion 43 between each linear portion 41 and the loop portion 42 in the defrost heater 40 is in a state of being fitted into the upward U-shaped groove 52 of the front plate 51 of the holder 50 and received.
[0019]
In this state, as shown by the arrow Y in FIG. 4, when the holder 50 is pushed toward the end plate 32, the locking plate 54 rides on the upper surface of the flange 37 via the guide portion 55, and the projection of the flange 37 Pushing is stopped when the end hits the rear face plate 53. Thereby, as shown in FIG. 5, the flange 37 and the loop portion 42 of the defrost heater 40 are elastically held between the locking plate 54 of the holder 50 and the U groove 52 of the front plate 51. State.
At this time, since the insertion holes 58 and 58 on the holder 50 and the screw holes 38 of the flange 37 are aligned, as shown in FIG. The holder 50 is fixed to the flange 37 by screwing into the screw hole 38 of the 37 and tightening the screw 57 while letting it through the insertion hole 58 of the locking plate 54.
The holder 50 is similarly fixed on the left and right opposite sides of the cooler 30. Thereby, the defrost heater 40 is firmly fixed in a state where the heater 40 is in contact with the lower surface of the cooler 30.
[0020]
When replacing the defrost heater 40 after installing and using the refrigerator, the screws 57 are first loosened and removed, and then the holder 50 is pulled toward the distal end of the flange 37, so that the locking plate 54 comes off the upper surface of the flange 37. When the holder 50 is subsequently lowered, the holder 50 is removed while the vicinity of the connection portion 43 between the linear portion 41 and the loop portion 42 in the defrost heater 40 comes off from the U groove 52. After the left and right holders 50 are removed, when the entire defrost heater 40 is subsequently pulled downward, the defrost heater 40 is removed while the straight portion 41 comes out of the U groove 36 of the fin 31.
The new defrost heater 40 is attached in the same manner as described above.
[0021]
That is, according to the first embodiment, the attachment and detachment of the defrost heater 40 can be quickly performed only by inserting and removing the holder 50 with respect to the flange 37 of the end plate 32, and by tightening and releasing the screw 57. Can be done. As a result, the initial assembling work is simplified, the manufacturing cost can be reduced, and the work of replacing the defrost heater 40 after installation can be performed easily and accurately.
[0022]
<Second embodiment>
Next, a second embodiment of the present invention will be described with reference to FIGS. In addition, about the part which has the same function as 1st Embodiment, description is abbreviate | omitted or simplified by attaching | subjecting the same code | symbol.
In the second embodiment, the holder 60 shown in FIG. 7 is provided. More specifically, the holder 60 is formed in the shape of a rectangular bar having a rectangular cross section as a whole, and has a length substantially equal to the lateral width of the end plate 32 as viewed from the front.
[0023]
On the upper surface of the holder 60, a plurality of substantially U-shaped press-fitting grooves 61 capable of press-fitting the vicinity of a connection portion 43 between each linear portion 41 and the loop portion 42 in the defrost heater 40 are formed at a predetermined pitch. I have. In the press-fitting groove 61, the connection portion 43 between the straight portion 41 and the loop portion 42 is set so as to fit completely by its diameter. At both ends of the holder 60, insertion holes 62 for screws 63 are opened.
On the other hand, as shown in FIG. 9, the lower edge of the end plate 32 of the cooler 30 is fixed at a position on a predetermined dimension (the depth of the U groove 36) than the lower edge of the fin 31, and from the lower edge. A flange 65 for attaching the holder 60 is formed by being bent outward at right angles. At both ends of the flange 65, screw holes 66 are cut corresponding to the insertion holes 62 of the screws 63 of the holder 60.
[0024]
The operation of the second embodiment is as follows. In assembling the defrost heater 40, first, predetermined positions of the connection portion 43 between the linear portion 41 and the loop portion 42 at the left and right end portions of the defrost heater 40 are completely pressed into the press-fit grooves 61 of the holder 60, respectively. . Thus, as shown in FIG. 8, the holder 60 is integrally attached to the left and right end portions of the defrost heater 40 at predetermined positions from the lower surface side.
When the holder 60 is attached in this manner, the defrost heater 40 is applied to the lower surface of the cooler 30 while fitting each straight portion 41 into the downward U groove 36 of the fin 31 from below. Accordingly, as shown in FIG. 9, the upper surface of the holder 60 is brought into contact with the lower surface of the flange 65 of the end plate 32, and the upper surface opening of the pressure groove 61 is closed.
[0025]
At this time, since the insertion hole 62 of the holder 60 and the screw hole 66 of the flange 65 are aligned, the screw 63 is inserted from below into the insertion hole 62 of the holder 60 as shown in FIG. 10 and 11, the holders 60 are fixed to the corresponding flanges 65 as shown in FIGS. Thereby, the defrost heater 40 is firmly fixed in a state where the heater 40 is in contact with the lower surface of the cooler 30.
[0026]
When replacing the defrost heater 40 after installing and using the refrigerator, the screws 63 are loosened and both holders 60 are removed from the flange 65, so that the defrost heater 40 is removed together with the holder 60. Then, the holder 60 is pulled out and removed from the old defrost heater 40 outside, and the holder 60 is press-fitted into the new defrost heater 40 and attached. Thereafter, a new defrost heater 40 can be attached to the lower surface of the cooler 30 via the holder 60 in the same manner as described above.
[0027]
According to the second embodiment, defrosting is performed only by attaching / detaching the holder 60 to / from the defrost heater 40 by press fitting and attaching / detaching the holder 60 to / from the flange 65 of the end plate 32 by the screw 63. The heater 40 can be quickly attached and detached. Similarly, the initial assembling operation is simplified, the manufacturing cost is reduced, and the operation of replacing the defrost heater 40 after installation can be performed easily and accurately.
[0028]
<Third embodiment>
A third embodiment of the present invention will be described with reference to FIGS. The third embodiment belongs to the same series as the first embodiment, and the following mainly describes differences from the first embodiment. In addition, parts having the same functions as those of the first embodiment are denoted by the same reference numerals, and description thereof will be omitted or simplified.
As shown in FIGS. 12 and 13, end plates 70 are arranged on both left and right surfaces of the cooler 30, and a U-groove 36 is formed on the lower edge of the end plate 70 similarly to the fin 31. A locked plate 71 is bent outward from the lower end of the inner edge (right edge in FIG. 12) of the end plate 70.
From the front edge of the end plate 70, a vertical flange 72 is formed outwardly over the entire height. As described above, the cooler 30 is mounted in the rearwardly inclined position, but the flange 72 at the front edge of the end plate 70 is perpendicular to the ceiling surface 17A of the cooler room 17 as shown in FIG. Is formed. At the lower end of the flange 72, a screw hole 74 into which a screw 73 (FIG. 14) can be screwed is cut.
[0029]
On the other hand, the holder 75 is formed in the shape shown in FIG. The holder 75 includes a band-shaped receiving portion 76, and the receiving portion 76 has a length substantially equal to the width of the lower edge of the end plate 70 as viewed from the front. At the rear end of the receiving portion 76, a locking portion 77 which is formed to be hooked toward the front side and can be locked to the locked plate 71 at the rear edge of the end plate 70 is provided. A fastening plate 78 is formed at the front end of the receiving portion 76 by bending. However, the fastening plate 78 is formed with a slightly open upper end so that the fastening plate 78 can be in close contact with the flange 72 of the end plate 70. The fastening plate 78 has an insertion hole 79 for the screw 73.
[0030]
The operation of the third embodiment is as follows. When assembling the defrost heater 40, each linear portion 41 is fitted from below into the downward U-shaped groove 36 of the fin 31 and the end plate 70 as shown by a chain line in FIG. At this time, as shown in FIG. 13, each of the loop portions 42 at the left and right ends of the defrost heater 40 projects outside the end plate 70.
Next, as shown in FIG. 14, the holder 75 is placed outside the end plate 70, and the locking portion 77 at the far end is locked to the locked plate 71 of the end plate 70, as shown by the chain line in FIG. I do. Subsequently, the front side is raised while receiving the loop portion 42 of the defrost heater 40 by the receiving portion 76, and the fastening plate 78 is brought into close contact with the lower end portion of the front surface of the flange 72 as shown in FIGS. . Thereby, the insertion hole 79 of the screw 73 is aligned with the screw hole 74.
[0031]
Finally, as shown in FIGS. 14 and 18, when the screw 73 is passed through the insertion hole 79 from the front and screwed into the screw hole 74 and tightened with the driver D, the holder 75 causes the loop portion 42 of the defrost heater 40 to rotate. The linear portion 41 is pressed and pressed into the fin 31 and the U groove 36 of the end plate 70 to be fixed.
Similarly, on the left and right opposite sides of the cooler 30, similarly, the rear end of the holder 75 is first locked, and the front end is fastened and fixed with the screw 73. Thereby, the defrost heater 40 is firmly fixed in a state where the heater 40 is in contact with the lower surface of the cooler 30.
[0032]
When replacing the defrost heater 40 after installing and using the refrigerator, as shown in FIG. 18, after inserting the driver D from the front and loosening the screws 73, the holder 73 is locked while pushing the holder 75 slightly inward. Release the lock on the plate 71 and remove it. After the left and right holders 75 are removed, when the entire defrost heater 40 is subsequently pulled downward, the defrost heater 40 is removed while the straight portion 41 comes off the fin 31 and the U groove 36 of the end plate 70.
The new defrost heater 40 is attached in the same manner as described above.
[0033]
In the third embodiment, the locking portion 77 at the back end of the holder 75 is locked or removed from the locked plate 71 at the back edge of the end plate 70, and the fastening plate 78 at the front end is fastened with the screw 73. Alternatively, the defrost heater 40 can be quickly attached and detached only by canceling it. Similarly, the initial assembling operation is simplified, the manufacturing cost is reduced, and the operation of replacing the defrost heater 40 after installation can be performed easily and accurately.
In particular, since the back side, which is not visible and can be groped, has a locking structure, work can be performed efficiently. Also, when the screw is screwed in the front, the screw 73 can be formed on a surface perpendicular to the ceiling surface 17A of the cooler room 17, so that the driver D may be inserted straight in a horizontal posture, for example, fastening or removing the screw 73. Work can be done easily.
[0034]
<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention, and furthermore, besides the following, within the scope not departing from the gist. Can be implemented with various modifications.
(1) The same can be applied to a type in which a defrost heater is attached to a side surface of a cooler.
(2) The present invention is not limited to the refrigerator illustrated in the above embodiment, and can be generally applied to a case where a defrost heater is attached to a cooler arranged in another cooling storage such as a freezer or a freezing storage.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing the vicinity of a cooler chamber according to a first embodiment of the present invention. FIG. 2 is an exploded perspective view showing a mounting structure of a defrost heater. FIG. 3 is a partially cutaway plan view of a defrost heater. FIG. 4 is a partial front view showing an operation of inserting a holder. FIG. 5 is a perspective view showing completion of insertion of the holder. FIG. 6 is a partial front view showing a state where the holder is fixed. FIG. 7 is a holder according to a second embodiment. FIG. 8 is a bottom view of a state where the holder is pressed into the defrost heater. FIG. 9 is a partial front view showing a state where the holder is screwed. FIG. 10 is a bottom view of FIG. 11 and a side view of FIG. 12 is a side view of the state before the defrost heater according to the third embodiment is mounted. FIG. 13 is an exploded perspective view of the state before the holder is mounted. FIG. 14 is a side view showing the mounting operation of the holder. FIG. 16 is a perspective view of the state before screwing is performed. FIG. 16 is a bottom view of the same. FIG. Cross-sectional view in the vicinity of the cooler compartment showing the screw fastening operation to da 19 a side view of a conventional example [Description of symbols]
DESCRIPTION OF SYMBOLS 30 ... Cooler 31 ... Fin 32 ... End plate 34 ... Evaporation tube 36 ... U groove (of fin 31) 37 ... Flange 38 ... Screw hole 40 ... Defrosting heater 41 ... Linear part 42 ... Loop part 43 ... Connection part 50 ... Holder 51: Front plate 52: U groove (of holder 50) 54: Locking plate 56: Bottom plate 57: Screw 60: Holder 61: Press-fit groove (recess) 63: Screw 65: Flange 66: Screw hole 70: End plate 71 ... Locked plate 72 ... Flange 73 ... Screw 74 ... Screw hole 75 ... Holder 76 ... Receiving part 77 ... Locking part 78 ... Screwing plate 79 ... Insertion hole D ... Driver

Claims (4)

On one surface of a cooler in which an evaporating pipe is piped through a number of fins arranged side by side, a defrost heater is provided,
A holder capable of receiving an end of the defrost heater is provided, and the holder is detachably attached to the end plate by fastening means while a part of the holder is locked to an end plate provided in the cooler. The defrost heater mounting structure of the cooler, wherein the defrost heater can be held in contact with one surface of the cooler at the time of mounting. The end plate of the cooler is formed with a flange abutting on one surface side of an end of the defrost heater, and the holder is provided with a locking plate locked to the flange, 2. A receiving plate for receiving the other surface of the end portion, wherein the receiving plate of the holder is detachable from the flange by the fastening means. A defrost heater mounting structure for the cooler according to the above. A locked portion is protruded on a back edge side of an end plate of the cooler, and a fastened portion is protruded on a front edge side, and the holder is a back end of a receiving portion that receives an end of the defrost heater. And a locking portion that can be locked to the locked portion and a fastening portion fastened to the locked portion by the fastening means at a front end. A defrost heater mounting structure for the cooler according to the above. On one surface of a cooler in which an evaporating pipe is piped through a number of fins arranged side by side, a defrost heater is provided,
A holder having a concave portion into which an end of the defrost heater can be press-fitted is provided, and fastening means for detachably fastening the holder to an end plate of the cooler is provided. Frost heater mounting structure.

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