KR100423982B1 - Washing machine with heater - fixing means - Google Patents

Abstract

The present invention relates to a washing machine having a heater fixing means, the object of which is to securely secure the electric heater and at the same time effectively prevent the high heat emitted from the direct transfer to the water tank side.

To this end, according to the washing machine having the heater fixing means 70 according to the present invention, the bracket 71 and the water tank 20 in which the electric heater 60 is accommodated and coupled through the fixing piece 71b and the recessed portion 71a. Fastening member 72 for fixing to the bottom of the) is arranged to prevent direct contact through the insulating member (73L) (73R). Accordingly, the electric heater 60 is firmly installed and fixed to the bottom of the water tank 20, and the high heat emitted from the electric heater 60 is directly prevented from being transferred directly to the water tank 20, thereby improving product reliability. There is a working effect.

Description

Washing machine with heater-fixing means}

The present invention relates to a washing machine, and more particularly, to a washing machine having a heater fixing means for fixing the electric heater to the bottom of the water tank to heat the wash water to boil the laundry to be washed.

In general, the washing machine is programmed in the microcomputer of the washing, rinsing, drainage, and dehydration stroke, and the laundry is automatically washed through a series of programmed strokes.

In addition, recently, a washing machine capable of boiling laundry to be washed in order to meet various demands of consumers is commercially available, which has an electric heater at the bottom of the tank in which the washing water is stored.

In other words, the washing machine having a boiling function includes a water tank in which washing water for washing is stored in a housing that forms an exterior, a rotating tank rotatably installed in the water tank and having a pulsator at the bottom thereof, and driving the rotating tank and the pulsator. It is equipped with a driving device and an electric heater disposed at the bottom of the water tank to heat the wash water in the washing cycle.

In such a washing machine, the electric heater must be installed away from the bottom of the tank so that the tank is not damaged by heat. To this end, the present applicant has a utility model right by applying for a heater support device (application number; thread 1992-012983, registration number; thread 0120655) of a washing machine which can prevent heat generated from the heater from being transferred to the tank side.

As shown in FIG. 1, the heater supporting apparatus of the boiled washing machine disclosed in the registration number thread 0120655 is provided with a protrusion (1) (1A) provided to protrude in the bottom surface of the washing tub, and coupled to the protrusion (1) (1A). A heat shield means (2) installed on the upper side and blocking the high heat generated from the heater (H) from being transmitted to the protrusions (1) (1A), and the heat shield means (2) It includes a fastening means (3) fastened to the protrusion (1) (1A) so as to press down the upper portion of the heater (H) seated on the upper side. At this time, the fastening means 3 and the heat shielding means 2 are simultaneously assembled to the protrusions 1 and 1A through the screw 4.

As a result, since the heat-blocking means 2 is disposed between the heater H and the protrusions 1 and 1A of the washing tank, the high heat generated by the heater H is prevented from being transferred to the washing tank side.

However, in the heater supporting apparatus of the conventional boil- ing washing machine, the heat-blocking means 2 and the fastening means 3 are assembled at the same time through the screw 4, and at the same time the head of the screw 4 is in contact with the fastening means 3, the heater Part of the heat generated from (H) has a problem that is transmitted to the washing tank side through the fastening means 3 and the screw (4).

That is, part of the heat emitted from the heater H is conducted to the screw 4 through the fastening means 3 made of metal, and subsequently transmitted to the protrusions 1 and 1A integrally formed in the washing tank. However, there is a limit to preventing the washing tank from being damaged by heat.

The present invention is to solve this problem, an object of the present invention is to provide a washing machine having a heater fixing means that can effectively prevent the heat generated from the heater to be transferred to the tank side while at the same time firmly installed the heater at the bottom of the tank. To provide.

1 shows a heater supporting apparatus of a conventional washing machine.

2 is a cross-sectional view showing the overall structure of a washing machine according to the present invention.

3 is a cross-sectional view taken along the line III-III of FIG. 2, showing the arrangement of the electric heater.

4 is a perspective view showing a fixing structure of the electric heater according to the present invention.

5 is an exploded perspective view showing a fixing structure of the electric heater according to the present invention.

* Description of the symbols for the main parts of the drawings *

20..Tank 30..Turn bath

60. Electric heater 70. Heater fixing means

71. Bracket 72. Fastening member (screw)

73L, 73R..insulating member 80L, 80R..boss

The present invention for achieving this object is;

In the washing machine having a water tank in which the wash water is fresh, a heater for heating the washing water disposed in the water tank, and a heater fixing means for fixing the heater to the water tank,

The heater fixing means includes a bracket to which a part of the heater is seated and coupled, a fastening member for fastening the bracket to the tank, and an insulating member disposed between the fastening member and the bracket to prevent the heat of the heater from being transferred to the fastening member and the tank side. Characterized in that.

In addition, the bracket is provided with a recess formed in the longitudinal direction so that the heater is seated, and a fixing piece bent to cover the heater seated in the recess by cutting a part of the bracket.

In addition, the side of the insulating member is formed with a slot is inserted into the bracket is coupled, the insulating member is characterized in that the through-hole is perforated so that the fastening member penetrates into the tank.

In addition, the insulating member is characterized in that it is disposed on both sides of the bracket.

Hereinafter, one preferred embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 2, the washing machine according to the present invention includes a housing 10 constituting an outer body, a water tank 20 installed hanging inside the housing 10, in which washing water is stored, and the water tank 20. Rotating tank 30 rotatably disposed and built with a pulsator 40 for generating washing water, a driving device 50 for driving the rotating tank 30 and the pulsator 40, and boiled laundry It is provided with an electric heater 60 for heating the laundry stored in the water tank 20 during the stroke.

The housing 10 is formed in the shape of a square cylinder with an open top, and the upper cover 12 having a lid 11 for putting laundry into and out of the top is coupled. The upper cover 12 is equipped with a control panel 13 having a display portion and a plurality of operation buttons. Also, a rear portion of the upper cover 12 includes a water supply valve 14 for controlling water introduced from the outside. Is placed.

A conventional water tank 20 having an open top is injection molded from plastic and is suspended from the housing 10 through a suspension device (not shown). In addition, a driving device 50 having a motor (not shown) and a clutch 51 is mounted on the lower outer side of the water tank 20. The motor generates power and transmits the power to the clutch 51. For this purpose, the motor and the clutch 51 are connected through a belt. The clutch 51 is mounted at the lower center of the water tank 20 so that the power can be divided or simultaneously transmitted to the rotating tub 30 and the pulsator 40, and the ends of the rotating shaft 52 are rotated at the rotary tub 30 and the pulsette. It is combined with the center of the eater 40. Accordingly, the clutch 51 rotates the pulsator 40 forward and backward during the washing and rinsing stroke, and simultaneously rotates the pulsator 40 and the rotating tub 30 in one direction during the dehydration stroke.

And the rotating tub 30 is made of a cylindrical shape of a stainless steel perforated fine diameter through-hole 31, is installed to maintain a constant interval with the inner wall of the water tank (20). In addition, a balancer 32 filled with saline is disposed in the circumferential direction inside the top end of the rotating tank 30. The balancer 32 performs a function of buffering the vibrations and the resulting vibration transmitted to the rotary tub 30 side during the washing and rinsing stroke of the washing machine through the wave of the salt water, and the spinning tub 30 rotates at high speed. During the stroke, the rotation of the rotating tub 30 is reduced by using a centrifugal force to relatively remove the salt water, thereby maintaining the balance of the rotating tub 30.

In addition, the pulsator 40 is rotatably disposed at the bottom of the rotary tub 30, the rotary disk 41 is directly connected to the rotary shaft 52 of the clutch 51 at the bottom center, and the rotation disk 31 of By providing a plurality of blades 42 provided radially on the upper surface, the washing and rinsing stroke is rotated forward and backward to generate the washing water flow.

On the other hand, the electric heater 60 is for heating the wash water stored in the water tank 20 during the boiled washing administration is made in an annular shape and is installed in a state spaced apart from the bottom of the water tank 20 through the heater fixing means (70). 3 and 5, the installation structure thereof will be described in detail as follows.

First, a pair of bosses 80L and 80R are provided on the bottom edge of the water tank 20 so as to be directly fixed to both sides of the heater fixing means 70 by fastening members. The pair of bosses 80L and 80R are provided to protrude upward from the bottom of the water tank 20. The support portion 81 supports the heater fixing means 70 and the support portion 81. Protruding from the center in a cylindrical shape and consists of a temporary assembly 82, the fastening hole 83 is formed in the axial direction.

The heater fixing means 70 includes a bracket 71 to which a part of the electric heater 60 is seated and coupled, a fastening member 73 for fastening the bracket 71 to the bottom of the water tank 20, and a bracket ( The insulating members 73L and 73R are disposed between the fastening member 72 and 71 to prevent heat generated by the electric heater 60 from being transferred to the fastening member 72 and the water tank 20.

The bracket 71 is made of a metal plate, and the recess 71a is formed recessed in the longitudinal direction so that the electric heater 60 is seated, and a portion of the bracket 71 is cut out to recess the recess 71a. A fixing piece 71b bent to cover the electric heater 60 seated on the cover) is provided. On the other hand, since the electric heater 60 is configured in an annular shape as described above, it is preferable that the recess portion 71a is also formed to have a predetermined curvature.

The insulating members 73L and 73R are made of an insulating material having a low heat transfer rate and low conductivity, and are formed of a rectangular block having a predetermined side thickness. The insulating members 73L and 73R are respectively fitted to both side ends of the bracket 71. To this end, the side ends of the brackets 71 are fitted into the side surfaces of each of the insulating members 73L and 73R so as to be coupled to each other. 73a) is formed.

In addition, a through hole 73b is drilled in the center of each of the insulating members 73L and 73R while the provisional assembly portion 82 of the bosses 80L and 80R is coupled to each other and the fastening member 72, that is, the screw penetrates. have. At this time, the inner diameter (D2) of the through hole (73b) is made to be the same as the outer diameter (D1) of the provisional assembly portion 82, this is for easily assembling the heater fixing means 70 to the bottom of the water tank (20) to be.

Next, the assembly process of the heater fixing means configured as described above and the effects thereof will be described.

First, the insulating members 73L and 73R are inserted through the slots 73a at both ends of the bracket 71, and then the electric heater 60 is connected between the recess 71a and the fixing piece 71b. Accept it.

In this state, when the insulating members 73L and 73R are fitted to the temporary assembly portions 82 of the bosses 80L and 80R through the through holes 73b, a part of the electric heater 60 is recessed ( 71a) is pressed by the fixing piece 71b, and the heater fixing means 70 is pre-assembled while being spaced apart from the bottom of the water tank 20 by each supporting portion 81 of the bosses 80L and 80R. Stays in the state.

When the fastening members 72 and the screws are fastened to the fastening holes 83 of the temporary assembly 82 in such a temporarily assembled state, the heads 72a of the fastening members 72 face the upper surfaces of the respective insulating members 73L and 73R. The pressure is prevented from being separated and the electric heater 60 is firmly fixed to the bottom of the water tank 20 while being spaced apart.

At this time, since the annular electric heater 60 is widely supported through the recessed portion 71a provided in the longitudinal direction, the annular electric heater 60 is firmly fixed to the bottom of the water tank 20 only through the two heater fixing means 70.

In addition, since the respective fastening members 72 and screws are fastened to the bosses 80L and 80R through the insulating members 73L and 73R without making direct contact with the bracket 71, the electric heater 60 It is completely prevented that the heat emitted from the heat transfer to the water tank 20 directly.

That is, when the electric heater 60 is driven to heat the washing water stored in the water tank 20 during the washing operation, the high heat emitted from the heating water is transmitted to the bracket 71 on the metal plate at the same time as the heating water is heated.

However, since the fastening member 72 is not in contact with the bracket 71 through the insulating members 73L and 73R, the heat of the electric heater 60 is directly transmitted to the water tank 20 through the fastening member 72. This prevents the thermal damage of the water tank 20 by this.

As described in detail above; According to the washing machine having a heater fixing means according to the present invention, a bracket in which an electric heater is accommodated and a fastening member for fixing it to the bottom of the tank through the fixing piece and the recess are disposed to prevent direct contact through the insulating member. . Accordingly, the electric heater is firmly installed and fixed at the bottom of the tank, and the high heat emitted from the electric heater is directly prevented from being transferred directly to the tank side, thereby improving the product reliability.

Claims (4)

In a washing machine having a water tank for washing water, a heater for heating the washing water disposed in the water tank, and a heater fixing means for fixing the heater to the water tank, The heater fixing means, A bracket to which a part of the heater is seated and coupled; A fastening member for fastening the bracket to the water tank; And an insulating member disposed between the fastening member and the bracket to prevent the heat of the heater from being transferred to the fastening member and the tank side. The method of claim 1, On the bracket A recess formed in the longitudinal direction so that the heater is seated; Washing machine with a heater fixing means characterized in that the fixing part bent to cover the heater seated in the recess by cutting a portion of the bracket. The method of claim 1, The side of the insulating member is formed with a slot that is coupled to the bracket, Washing machine with a heater fixing means characterized in that the through-hole is perforated so that the fastening member penetrates the insulating member through the insulating member. The method of claim 3, Washing machine having a heater fixing means characterized in that the insulating member is disposed on both sides of the bracket.