A sensing device for testing the weight of contents in washing tub of washing machine

A sensor device, washing machine technology, applied in washing devices, other washing machines, textiles and papermaking, etc., can solve the problems of large installation space and easy collision, to ensure test accuracy and reliability, avoid The effect of vibration, collision and friction

Active Publication Date: 2018-12-21
HANGZHOU KAMBAYASHI ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the problem that the iron core of the sensing device and the inductance coil of the prior art weight sensing device for washing machine are likely to collide when the washing machine is dehydrating, and the installation of the sensing device occupies a large space. Therefore, a solution of the present invention is provided. A sensing device for testing the weight of the contents in the washing bucket of a washing machine. The sensing device of the present invention has good stability when used, and the iron core and the inductance coil will not collide when the washing machine is dehydrated, and the installation space is reasonable

Method used

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  • A sensing device for testing the weight of contents in washing tub of washing machine
  • A sensing device for testing the weight of contents in washing tub of washing machine
  • A sensing device for testing the weight of contents in washing tub of washing machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Sensing device of the present invention, such as figure 1 , figure 2 As shown, a hook A3 is connected to each of the four upper corners of the inner wall of the outer box body 1 of the washing machine, and four hooks B4 are connected to the lower part of the outer wall of the washing machine washing bucket 2 at intervals in the circumferential direction. Hanging rod 5 is connected on A, and is stabilized by pad 6, and shock absorber 7 is connected on hook B, and this shock absorber has shell 8, and the lower end of boom 5 stretches in the shell of shock absorber, A supporting body 9 is provided inside the casing, the lower end of the suspender is connected to the supporting body, and a damping spring 10 is arranged between the upper top of the casing and the supporting body, and the upper part of the casing is hooked to the hook B so that the shock absorber is connected to the hook B, There is a spring A14 at the bottom of the casing, a magnetic iron core 12 is placed...

Embodiment 2

[0021] In this example, the sensing device, such as Figure 4 As shown, the shock-absorbing spring is composed of shock-absorbing spring A10-1 and shock-absorbing spring B10-2. Keep it in the air (the upper end of the damping spring B is kept in the air when the lower end of the shock-absorbing spring B is pushed against the support body). Other structures are the same as implementing one.

[0022] Add water in the washing tub, as in Embodiment 1, the shell of the shock absorber moves downward, and the shock absorber spring A is compressed first, and as the weight of the water increases, the shock absorber spring A is compressed to a height equal to the height of the shock absorber spring B, Continue to add water, the damping spring B is compressed. Suppose the elastic coefficient of shock-absorbing spring A is K1, the free length is La, the elastic coefficient of shock-absorbing spring B is K4, the free length is Lb, the total stroke of the washing bucket is L, and when the...

Embodiment 3

[0024] In this example, the sensing device, such as Image 6 As shown, what is different from Example 2 is that the support body 9 is provided with a concave cavity opening downward, and a guide rod 15 is arranged in the cavity, the lower end of the guide rod is connected to the magnetic iron core 12, and the connecting part of the guide rod and the magnetic iron core has a diameter Outwardly expanded steps, the length of the guide rod is to keep the upper end of the guide rod a distance from the top of the cavity, the spring B13 is sleeved on the guide rod, the lower end of the spring B is placed on the step of the guide rod, and the upper end of the spring B is higher than the guide rod. rod top. Other structures are the same as implementing two. In this example, the distance between the magnetic iron core and the supporting body can be reduced while maintaining the structure and function of the spring B, which is beneficial to the miniaturization of the sensing device.

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Abstract

The invention provides a sensing device for testing the weight of contents in a washing bucket of a washing machine, which realizes stable and accurate detection. The sensing device comprises hanging hooks A connected to upper portion corners of the inner wall of an outer tank body of a washing machine and hanging hooks B connected to the lower portion of the outer wall of a washing bucket of the washing machine; the hanging hooks B and the hanging hooks A correspond to each other longitudinally; a lifting rod is hung on and connected to each hanging hook A; each hanging hook B is connected with a shock absorber via the hanging and connection of an outer shell of the shock absorber; the lower end of each lifting rod extends into the outer shell of the corresponding shock absorber; a support body is arranged in each outer shell; the lower end of each lifting rod is connected with the corresponding support body; a shock absorption spring is arranged between each support body and the upper top of the corresponding outer shell; the bottom of each outer shell is provided with a spring A and the upper end of the spring A is pressed against a magnetic iron core; a spring B is pressed against each magnetic iron core and the corresponding support body therebetween; the periphery of the lower portion of each outer shell, corresponding to the matching magnetic iron core, is fixedly sleeved with an inductance coil; the elastic coefficient of the springs A and the elastic coefficient of the springs B are not equal. The sensing device is used for detection of the weight of contents in a washing bucket of a washing machine.

Description

technical field [0001] The invention relates to a sensing device for a washing machine, in particular to a sensing device for testing the weight of content in a washing tub of a washing machine. Background technique [0002] The washing machine needs to sense the weight of the washing load when washing, and it needs to sense the amount of water inflow when it is in the water. At present, the initial rotation of the motor is generally used to drive the washing load to rotate, and the weight of the washing load can be vaguely judged by detecting the time when the pulsator stops after the motor stops. This method has low measurement accuracy, which may lead to misjudgment, resulting in waste of washing water resources or unclean washing. Japanese Patent Application No. 2001-120885 discloses a weight sensing device for a washing machine. A weight sensor is installed on the suspension rod between the washing machine cabinet and the outer tub, and the deformation of the spring is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06F39/00D06F37/20
Inventor 竺建军邓睿
Owner HANGZHOU KAMBAYASHI ELECTRONICS
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