KR20080058311A - Heater fixing apparatus for drum type washing machine - Google Patents

Abstract

A device for fixing a heater of a frontloading washing machine is provided to prevent separation of a bracket by press-fitting a protrusion of the bracket to a groove of a bracket installation unit and assembling a fixing guide to a boss of a separation preventive unit. A device for fixing a heater of a frontloading washing machine comprises a bracket installation unit(100), a bracket(200), and a separation preventive unit. The bracket installation unit is formed at a tub(52). The bracket has a crack where a free end of a heater(60) is inserted, and detachably assembled to the bracket installation unit. The separation preventive unit fixes the bracket to the bracket installation unit, and has a boss(410) and a fixing guide(420). The boss is formed on the tub and separated from the bracket installation unit. The fixing guide is assembled to the boss to fix the bracket to the bracket installation unit.

Description

Heater fixing device of drum washing machine {HEATER FIXING APPARATUS FOR DRUM TYPE WASHING MACHINE}

The present invention relates to a drum washing machine, and more particularly, to a drum washing machine which can firmly fix a free end of a heater for washing a boiled laundry and improve assembly performance when installing, repairing or replacing the heater. It relates to a heater fixing device.

1 is a front view showing a heater fixing device of the drum washing machine according to the prior art.

Referring to Figure 1, the heater mounting apparatus of the drum washing machine according to the prior art is a heater (1) for heating the washing water for boiled laundry, a heater bracket (2) on which the heater (1) is mounted, and the heater (1) The tub 3 is provided with an insertion protrusion 4 into which both ends of the heater bracket 2 are inserted in order to mount the heater bracket 2 mounted on the tub 3.

As the washing proceeds in the state configured as described above, there is a concern that the heater bracket 2 which is inserted and fixed to the insertion protrusion 4 may come out during strong dehydration administration.

Therefore, when the heater bracket 2 exits from the insertion protrusion 4, a problem occurs in which the heater 1 is broken.

Figure 2 is a front view showing another embodiment of the heater fixing device of the drum washing machine according to the prior art.

Referring to Figure 2, in order to improve the problems described above, the heater bracket 22 is mounted to the heater 21 for heating the wash water, and the fixing is inserted into the insertion hole formed on both ends of the heater bracket 22 A screw 23, a fixing hole 25 formed in the tub 24 so that the fixing screw 23 is inserted, and a fixing nut 26 fixing the fixing screw 23 inserted into the fixing hole 25 are provided. Two O-rings 27 are mounted between the head of the fixing screw 23 and the tub 24 and between the tub 24 and the fixing nut 26.

Thus, the configuration in which the heater 21 is mounted on the tub 24 has a complicated configuration, which increases the number of parts. Therefore, the assembly is complicated, and the O-ring 27 is inserted into the fixing screw 23 in the assembling process. , Inserting the fixing screw 23 into the fixing hole 25 formed in the tub 24, inserting the O-ring (27) to the end of the fixing screw 23 inserted into the fixing hole 25, and then fixed The assembling process is complicated by coupling and fixing the fixing nut 26 to the tip of the screw 23.

As described in the background art, the conventional drum washing machine is not able to firmly fix the heater, the assembly process is increased in the assembling process of the product, and as the number of parts increases, the cost of the product rises due to the increase in material costs. There was this. In addition, the tub has a problem that the leak occurs from the inside to the outside.

The present invention has been made in order to improve the above problems of the prior art, an object of the present invention is to provide a heater fixing device of a drum washing machine that can firmly fix the heater.

The heater fixing device of the drum washing machine according to the present invention for solving the above problems: a bracket seating portion provided in the tub; A gap in which a free end of the heater is inserted is formed, and the bracket is detachably coupled to the bracket seating part; And a detachment prevention part that fixes the bracket to the bracket seating part.

In addition, the separation prevention portion, the boss is formed in the tub spaced apart from the bracket seating portion; And a fixing guide coupled to the boss so that the bracket is fixed to the bracket seating portion.

In addition, the boss and the bracket mounting portion is preferably injection molded integrally with the tub.

In addition, the fixing guide, the cover member in contact with the boss; A blocking piece bent from the cover member to form a second fastening hole corresponding to the first fastening hole formed in the boss; And a connecting piece formed integrally with the cover member to support the bracket. In addition, the present invention preferably further comprises a coupling member for coupling the blocking piece to the sieve 1 fastener.

In addition, the bracket is preferably inserted between the boss and the bracket mounting portion.

The bracket may further include a plate inserted between the boss and the bracket seating portion; A lower supporter connecting the plate and supporting a lower portion of the heater; And an upper support extending upward from the plate to press the upper portion of the heater so that the gap is formed. In addition, the present invention includes a mounting portion formed on the plate and the bracket mounting portion facing the plate so that the bracket is detachably coupled to the bracket mounting portion. Here, the mounting portion, a mounting protrusion protruding from the plate; And a mounting groove formed in the bracket seating portion to receive the mounting protrusion.

In addition, the bracket seating portion is preferably formed with stepped to restrain the movement of the bracket. In addition, the fixing guide, the cover member in contact with the boss; A blocking piece bent from the cover member and having a second fastening hole corresponding to the first fastening hole formed in the boss; And a connection piece integrally formed with the cover member to support the bracket. The bracket may further include a plate inserted between the boss and the bracket seating portion; A lower supporter connecting the plate and supporting a lower portion of the heater; And it is preferable to have an upper support extending from the plate to the upper side so as to form the gap to press the upper portion of the heater. Here, one side of the plate is preferably coincided with the end of the boss or formed to protrude outward from the end of the boss is preferably pressed to the stepped side by the blocking piece.

The present invention also includes a support member extending from the bracket to contact the tub.

The heater fixing device of the drum washing machine according to the present invention configured as described above binds the bracket primarily by forcibly fitting the mounting protrusion of the bracket into which the heater is inserted into the mounting groove of the bracket seating portion, and fastening the fixing guide to the boss. By fixing the pressing guide in the downward direction, the bracket can be secondarily bound to prevent external detachment firmly, and the installation guide can be easily installed by installing the fixing guide with bolts or screws.

Hereinafter, a heater fixing device of a drum washing machine according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of description. In addition, terms to be described below are terms defined in consideration of functions in the present invention, which may vary according to the intention or convention of a user or an operator. Therefore, the definitions of these terms should be made based on the contents throughout the specification.

3 is a cross-sectional view showing a drum washing machine according to an embodiment of the present invention, Figure 4 is a perspective view showing the main portion showing a heater fixing device of the drum washing machine according to an embodiment of the present invention. In addition, Figure 5 is an exploded perspective view of Figure 4, Figure 6 is a front sectional view showing a heater fixing device of the drum washing machine according to an embodiment of the present invention.

3 to 6, the drum washing machine according to an embodiment of the present invention, the cabinet 51 to form an outer shape, the tub 52 is installed in the cabinet 51 is fresh water wash, and A drum (53) rotatably installed inside the tub (52), a driving device (57) connected to the rotary shaft of the drum (53) and installed on the tub (52), and installed in the tub (52); Water supply device 58 for extending the outside of the cabinet 51 to supply the washing water to the tub 52 and a drainage device 59 extending from the tub 52 to the outside of the cabinet 51.

The water supply device 58 supplies the washing water to the tub 52, and when the power is applied to the driving device 57 by an external operation, the drum 53 rotates while the laundry stored in the drum 53 rotates. The washing operation is performed.

Here, the tub 52 generally functions to contain the washing water for washing, including washing, and is mounted inside a washing machine, a drum washing machine, a dish washer and a dryer, and includes a heater 60 on the bottom surface. The heater 60 heats the washing water supplied to the tub 52 to a high temperature, so that the washing operation can be boiled.

In particular, the tub 52 is provided with a mounting hole 52a on the side to insert one end of the heater 60 so that one end of the heater 60 is fixedly mounted by the mounting hole 52a.

At this time, since the other end of the heater 60 is a free end, noise may be generated due to shaking during operation, and therefore, it is preferable to restrain this.

The heater fixing device of the drum washing machine according to an embodiment of the present invention includes a bracket seating portion 100 and the bracket 200.

The bracket seating part 100 is provided in the tub 52 and may be formed to protrude as one block, but is preferably arranged side by side on the bottom surface of the tub 52. In addition, a plurality of heaters 60 may be provided on the tub 52, but one is provided for convenience of description. In one embodiment, the bracket seating portion 100 is preferably injection molded integrally with the tub (52).

In addition, the bracket seating portion 100 is disposed on both sides of each heater 60 on the tub 52 and arranged side by side, one bracket 60 is provided with one pair of heaters 60 is provided As shown.

In addition, the bracket 200 is fixedly mounted to the pair of bracket seating parts 100 and serves to restrain the other end, which is the free end of the heater 60.

At this time, since the bracket 200 may be arbitrarily separated when the bracket 200 is seated on the bracket seating part 100, the bracket 200 is bound to the bracket seating part 100 by the mounting part 300.

Therefore, the mounting portion 300 serves to prevent the bracket 200 from being detached from the bracket mounting portion 100 by mounting the bracket 200 to be coupled to the bracket mounting portion 100.

At this time, the bracket seating portion 100 forms a step 110, respectively, to contact one side edge of the bracket 200 toward the center of the bracket seating portion 100.

That is, the step 110 of the bracket seating part 100 supports the bracket 200 to move the bracket 200 further to the center of the bracket seating part 100 along the axial direction of the bracket seating part 100. It does not play a role.

In addition, the bracket 200 is connected to the plate 210 and the plate 210 in contact with each outside of the pair of bracket seating portion 100 adjacent to the tub 52, and support the lower portion of the heater 60 The lower support 220 and the plate 210 is connected to each other and has an upper support 230 for pressing the upper portion of the heater (60). Here, the upper support 230 is extended to the upper side of the plate 210 to form a gap in which the heater 60 is inserted to press the upper portion of the heater 60.

The plate 210 is provided to contact the outer surface end of the bracket seating portion 100, respectively. That is, the plate 210 is inserted between the boss 410 and the bracket seating portion 100. In addition, one side of the plate 210 is formed to coincide with the end of the boss 410 or protrude outward from the end of the boss 410 and is pressed by the blocking piece 424 toward the step 110.

In addition, the lower support 220 and the upper support 230 connects a pair of plates 210 together.

At this time, the pair of plates 210, the lower support 220 and the upper support 230 is preferably integrally injection molded or mold manufactured.

In addition, the bracket 200 forms a gap penetrating to both sides between the upper support 230 and the lower support 220.

Therefore, the bracket 200 is supported by a pair of bracket seating portions 100, and the other end of the heater 60 is fixedly mounted by being inserted between the upper support 230 and the lower support 220.

In particular, when the bracket 200 is supported and installed only on the bracket seating part 100, the bracket 200 may be bent or deformed downward by being mounted at a predetermined clearance on the tub 52.

Thus, the bracket 200 is preferably formed integrally extending the support member 240 in the lower direction to contact the surface of the tub 52.

That is, the bracket 200 is firmly supported by the support member 240 with respect to the tub 52 and does not bend or change to improve the restraint force on the other end of the heater 60.

In more detail, the support member 240 is preferably formed integrally extending in the lower direction from the lower support 220 of the bracket 200.

In addition, the support member 240 is preferably formed (flexible).

Since the support member 240 is formed to be flexible, the impact force applied to the entire bracket 200 is reduced by performing a buffering function when the heater 60 swings, thereby improving durability.

In particular, the support member 240 is most preferably to form a bent portion 242 to maximize the buffer force.

The bent portion 242 further improves the buffering force.

On the other hand, the mounting portion 300 is formed in each of the mounting projection 310 protruding from the inner end of the bracket 200 to the inner surface of each of the mounting projection 310 and the inner surface of the bracket seating portion 100 is formed recessed projection 310 It consists of a mounting groove 320 for receiving.

Therefore, the bracket 200 is forcibly formed in the mounting grooves 320 formed in the bracket seating portion 100 in contact with each plate 210 by mounting protrusions 310 protruding from the inner surface of each plate 210. The insert is fixed to the bracket seating part 100.

Thus, as the mounting protrusion 310 is forcibly fitted into the mounting groove 320, the bracket 200 is bound to the bracket seating portion 100 to prevent upward and forward detachment and at the same time to the other end by the boss 410. The departure is prevented so that the vibration of the heater 60 does not leave the tub 52.

Of course, the bracket 200 and the bracket seating part 100 are separated by the user spreading the plates 210 formed on both sides of the bracket 200 by an external force in the outward direction of the bracket seating part 100.

At this time, the bracket 200 is preferably fixedly mounted to the bracket seating portion 100 by the mounting portion 300 at the same time as the stepped 110 and the bonding of the bracket seating portion 100.

In addition, the bracket 200 is bracket by the separation prevention unit 400 provided on the tub 52 to block the end of the at least one pair of bracket seating portion 100 formed on the tub 52 Departure to the outside along the axial direction of the seating portion 100 is firmly prevented.

That is, the mounting protrusion 310 is manufactured to a minimum size within the tolerance range or easily detached from the mounting groove 320 when worn, and the bracket 200 is separated from the end of the bracket seating portion 100 The departure prevention part 400 is provided to prevent it from being.

At this time, since the bracket 200 is no longer moved in the center direction along the axial direction of the bracket seating part 100 by the step 110, the bracket 200 is separated to push the outside of the bracket 200 toward the step 110. It is preferable that the prevention part 400 is provided.

That is, the bracket 200 is more firmly bound to the bracket seating portion 100 by the departure prevention portion 400.

Here, the departure prevention part 400 is formed to connect the boss 410 formed on the tub 52 and each end of the boss 410 along the position corresponding to each outside of the adjacent bracket seating portion 100 It is provided with a fixing guide 420 for preventing the detachment of the bracket 200 by contacting the bracket 200 together.

The boss 410 is formed to be spaced apart from each bracket seating portion 100 on the tub (52). Here, the boss 410 is preferably provided on the outside of the bracket seating portion (100). That is, the boss 410 is provided with a pair so that the bracket seating portion 100 is located therebetween. Therefore, the bracket 200 is inserted between the boss 410 and the bracket seating portion 100. In addition, the boss 410 is preferably formed to contact the inner surface and the bottom surface of the tub 52 at the same time to increase the rigidity. In one embodiment, the boss 410 and the bracket seating portion 100 is preferably injection molded integrally with the tub (52).

In addition, the fixing guide 420 is connected to each end of the pair of boss 410 and at the same time contact the outer edge of the bracket 200 by pressing the bracket 200 in the downward direction by the bracket 200 bracket mounting portion It prevents the departure to the outer direction of the (100).

In this case, the fixing guide 420 may be integrally formed with the boss 410, but may be detachably installed with the boss 410 by the fastening part 440.

In one embodiment, the fixing guide 420 is a cover member 422 formed to contact a portion of the circumference of each of the boss 410, and the front side of the cover member 422 is blocked to contact the end of the boss 410 and the bracket It is provided with a connecting piece 426 for supporting the bracket 200 and connecting the blocking piece 424 and the cover member 422 to support the two edges of the 200 to prevent separation.

The pair of cover members 422 connected by the connecting pieces 426 are formed to cover a part of the circumference of the boss 410, respectively, so that the fixing guide 420 is fixed to the width of the pair of bosses 410. It serves to assemble and serves to support the connecting piece 426 on the boss 410.

At this time, when the fixing guide 420 is located on the upper portion of the bracket 200, the connecting piece 426 of the fixing guide 420 is in contact with the lower support 220 of the bracket 200, accordingly the connecting piece 426 Is not blocking the gap formed between the upper support 230 and the lower support 220.

The blocking piece 424 is in contact with the end of the boss 410.

In addition, the bracket 200 forms a stepped end portion 430 at both edges.

The end 430 of the bracket 200 is in contact with the inner surface of the blocking piece 424 in contact with the end of the boss 410 to easily determine the assembly position of the fixing guide 420.

At this time, the blocking piece 424 is in contact with the end of the boss 410 and the end 430 of the bracket 200 at the same time.

On the other hand, the fastening part 440 is the first fastening hole 442 formed in the axial direction at the end of the boss 410, the second fastening hole 444 and the second fastening hole formed in the blocking piece 424 It is inserted into the 444, the first fastener 442 is fastened to the coupling member 424 and the boss 410 is made of a coupling member 446 for coupling integrally.

The first fastener 442 preferably forms a tab on the inner side to be screwed to the coupling member 446. The second fastener 444 may form a tab on the inner side, but the coupling member ( It is desirable not to form tabs to only insert 446).

The coupling member 446 is a screw or bolt.

Looking at the operation of the heater fixing device and the drum washing machine having the same according to an embodiment of the present invention configured as described above are as follows.

First, the operator attaches each plate 210 of the bracket 200 to the end of the bracket seating part 100, and then attaches the fixing guide 420 of the separation prevention part 400 on the bracket seating part 100. Mount it.

At this time, the fixing guide 420 is in contact with the lower support 220 of the bracket 200.

Then, when the operator pushes the bracket 200 and the fixing guide 420 along the axial direction of the bracket seating portion 100, the heater 60 is the upper support 230 and lower support 220 of the bracket 200 In more detail, the mounting protrusion 310 of the bracket 200 is mounted to the mounting groove 320 of the bracket seating part 100 while being inserted between the upper support 230 and the connection piece 426 of the fixing guide 420.

Thereafter, the blocking piece 424 of the fixing guide 420 comes into contact with the end of the boss 410, and thus the heater 60 is engaged with the blocking piece 424 and the boss 410 by the coupling member 446. The other end fixed assembly of) is completed.

Thereafter, when the wash water is supplied to the tub 52 by the water supply device 58, the heater 60 is immersed in the wash water, and when power is applied to the heater 60, the washing water is supplied to heat the wash water above a predetermined temperature. As a result, the washing operation can be performed.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and various modifications and equivalent other embodiments are possible to those skilled in the art. Will understand. In addition, the heater fixing device installed in the drum washing machine has been described as an example, but this is merely exemplary, and the heater fixing device of the present invention may be used in other products other than the heater fixing device used in the drum washing machine. Therefore, the true technical protection scope of the present invention will be defined by the claims below.

1 is a front view showing a heater fixing device of the drum washing machine according to the prior art.

Figure 2 is a front view showing another embodiment of the heater fixing device of the drum washing machine according to the prior art.

3 is a cross-sectional view showing a drum washing machine according to an embodiment of the present invention.

Figure 4 is a perspective view of the main part showing a heater fixing device of the drum washing machine according to an embodiment of the present invention.

5 is an exploded perspective view of FIG. 4.

Figure 6 is a front sectional view showing a heater fixing device of the drum washing machine according to an embodiment of the present invention.

<Explanation of symbols on main parts of the drawings>

51: cabinet 52: tub

53: drum 60: heater

100: bracket mounting portion 110: step

200: bracket 210: plate

220: lower support 230: upper support

240: support member 242: bend

300: mounting portion 310: mounting projection

320: mounting groove 400: separation prevention part

410: boss 420: fixed guide

430: end 440: fastening portion

Claims (14)

Bracket mounting portion provided in the tub; A gap in which a free end of the heater is inserted is formed, and the bracket is detachably coupled to the bracket seating part; And And a detachment prevention part for fixing the bracket to the bracket seating part. The method of claim 1, wherein the separation prevention unit, A boss formed in the tub to be spaced apart from the bracket seating portion; And And a fixing guide coupled to the boss so that the bracket is fixed to the bracket seating portion. The method of claim 2, The boss and the bracket mounting portion heater fixing device of the drum washing machine, characterized in that the injection molding integrally with the tub. The method of claim 2, wherein the fixing guide, A cover member in contact with the boss; A blocking piece bent from the cover member and having a second fastener corresponding to the first fastener formed on the boss; And The heater fixing device of the drum washing machine, characterized in that it comprises a connecting piece formed integrally with the cover member for supporting the bracket. The method of claim 4, wherein The heater fixing device of the drum washing machine characterized in that it further comprises a coupling member for coupling the blocking piece to the sieve 1 fastener. The method of claim 2, The bracket is a heater fixing device of the drum washing machine, characterized in that inserted between the boss and the bracket mounting portion. The method of claim 2, wherein the bracket, A plate inserted between the boss and the bracket seat; A lower supporter connecting the plate and supporting a lower portion of the heater; And And an upper supporter extending upward from the plate to press the upper portion of the heater so that the gap is formed. The method of claim 7, wherein And a mounting portion formed on the bracket seating portion facing the plate and the plate such that the bracket is detachably coupled to the bracket seating portion. The method of claim 8, wherein the mounting portion, A mounting protrusion protruding from the plate; And And a mounting recess formed in the bracket seating portion to accommodate the mounting protrusion. The method of claim 2, The bracket mounting portion is a heater fixing device of the drum washing machine, characterized in that the stepped to restrain the movement of the bracket is formed. The method of claim 10, wherein the fixing guide, A cover member in contact with the boss; A blocking piece bent from the cover member and having a second fastening hole corresponding to the first fastening hole formed in the boss; And The heater fixing device of the drum washing machine, characterized in that it comprises a connecting piece formed integrally with the cover member for supporting the bracket. The method of claim 11, wherein the bracket, A plate inserted between the boss and the bracket seat; A lower supporter connecting the plate and supporting a lower portion of the heater; And And an upper supporter extending upward from the plate to press the upper portion of the heater so that the gap is formed. The method of claim 12, One side of the plate is coincided with the end of the boss or formed to protrude outward than the end of the boss is a heater fixing device of the drum washing machine, characterized in that the pressurized support to the stepped side. The method according to any one of claims 1 to 13, And a support member extending from the bracket so as to be in contact with the tub.

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