CN105839354A - Sensing device for testing weight of contents in washing bucket of washing machine - Google Patents
Sensing device for testing weight of contents in washing bucket of washing machine Download PDFInfo
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- CN105839354A CN105839354A CN201510023022.4A CN201510023022A CN105839354A CN 105839354 A CN105839354 A CN 105839354A CN 201510023022 A CN201510023022 A CN 201510023022A CN 105839354 A CN105839354 A CN 105839354A
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- spring
- amortisseur
- inductance coil
- supporter
- sensing
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Abstract
Provided is a sensing device for testing weight of contents in a washing bucket of a washing machine. The sensing device is provided with hooks A connected with the upper corners of the inner wall of an outer box body of the washing machine and hooks B connected to the lower part of the outer wall of the washing bucket of the washing machine. The hooks B correspond to the hooks A lengthways. The hooks A are connected with hanging rods. The hooks B are connected with dampers through housings of the dampers. Support bodies are arranged in the housings of the dampers. Lower parts of the housings of the dampers are internally provided with sleeve bodies, upper ends of which are connected to the lower parts of the support bodies in an abutting mode. Lower ends of the hanging rods are located at the lower parts of the sleeve bodies. The support bodies pass through and sleeve the hanging rods in a loose way. Damping springs are arranged at the tops between the support bodies and the upper tops of the housings of the dampers. The lower ends of the hanging rods are provided with spring stoppers. Sensing springs are pressed on the spring stoppers in an abutting mode. The damping springs and the sensing springs sleeve the hanging rods coaxially. Inductance coils sleeve the outsides of lower end parts of the sleeve bodies and are internally provided with magnetic iron cores pulled by the lower ends of the hanging rods. The sensing device for testing weight of contents in the washing bucket of the washing machine is used for sensing device for testing weight of contents in washing bucket of washing machine.
Description
Technical field
The present invention relates to washing machine sensing device, accommodate in particularly relating to a kind of test tub of washing machine
The sensing device of thing weight.
Background technology
Washing machine needs the weight of perception wash load when washing, needs perception inflow during water inlet action
Number.The most general employing motor gives just spinning movement and drives wash load to rotate, electric by detection
The time that after machine stopping, impeller stops, the weight of fuzzy Judgment wash load.This method certainty of measurement is low,
May result in erroneous judgement, cause the waste of washings resource or washing the cleanest.JP 2001-120885
Disclosing the weight sensing device of a kind of use in washing machine, this is the suspension rod between casing of washing machine and outer barrel
On weight sensor is set, be converted into the change of inductance value by the compressed by weight spring deflection of washing tube,
Realize the measurement of washing tube weight.But outer barrel of washing machine is when water filling weight is bigger, amortisseur shell
Displacement reach more than 50mm, be therefore fixed on the magnetive cord of damping spring one end and be positioned at damping
The volume requirement of the inductance coil of the spring other end is designed to very big, to meet the measurement of the big displacement of suspension rod,
On volume unreasonable.A kind of check weighing that No. 201410692056.8 patent applications of the applicant are recorded passes
Induction device, be disposed with from top to bottom in amortisseur shell damping spring, supporter, spring A,
Magnetive cord and spring B, wherein supporter is connected in downrod lower end, and damping spring is positioned at supporter and damping
On device shell between end face, the amortisseur shell of this device because of action of gravity decline time, suspension rod and amortisseur
The relative displacement of shell is transferred to magnetive cord, due to Armco magnetic iron by spring A and the release of spring B elastic force
Core upper and lower side is respectively by being connected with spring A, spring B, therefore is avoided that magnetive cord is mutual with amortisseur shell
Between vibrations collision with friction, it is ensured that the measuring accuracy of sensing device and reliability., subtract when needs
When shake device can utilize air damping to strengthen damping effect, the diameter of the described supporter in amortisseur shell should
When the biggest, make supporter side face sufficiently small with the gap of amortisseur outer casing inner wall, supporter just can be made to exist
Obtaining sufficient air damping when moving axially in amortisseur shell, and diameter is fully big, supporter is relative
When amortisseur shell moves, the friction between supporter and amortisseur outer casing inner wall is difficult to avoid that, this friction
Cause washing tube gravity not accurately to be delivered on damping spring, make the suspension rod displacement relative to amortisseur shell
With washing tube added by the linear relationship of actual weight destroyed, cause sensor measurement inaccurate.
Summary of the invention
The problem to be solved in the present invention is propping up of use in washing machine its amortisseur of weight sensing device of prior art
Hold the supporter of damping spring when washing tube action of gravity is moved relative to amortisseur shell with amortisseur shell
Rub, cause washing tube gravity not accurately to be delivered on damping spring, make suspension rod relative to amortisseur
The displacement of shell is destroyed with the linear relationship of the gravity putting on washing tube, causes sensor measurement not
Accurate.The present invention provides a kind of and tests the sensing device of receiving material weight in tub of washing machine for this, this
Plant sensing device washing tube gravity and be not directly delivered to damping spring, thus eliminate or essentially eliminate support
The impact that body causes with the friction of amortisseur shell, in the case of fully obtaining air damping damping effect,
Keep measurement result accurately.
For solving the problems referred to above, the technical solution used in the present invention is provided with being connected in washing machine box body
The hook A of wall upper corner and the hook B being connected to tub of washing machine outer wall bottom, hook B and extension
Hook A is the most corresponding, and on hook A, extension is connected with suspension rod, hook B is connected with through the company's of extension amortisseur shell and subtracts
Shake device, is provided with supporter in described amortisseur shell, and it is characterized in that described amortisseur outer casing underpart
Being built-in with a body, this body upper end is by being connected in below described supporter, and described suspension rod bottom is built in and subtracts
Shaking device shell, and downrod lower end is positioned at described body bottom, described supporter passes and pine is placed on suspension rod,
Between the upper top of supporter and described amortisseur shell, top is provided with damping spring, and downrod lower end has spring
Gear platform, on this spring catch platform, top is pressed with sensing spring, damping spring and sensing spring and is placed on suspension rod coaxially,
And damping spring is positioned at above sensing spring, outside described body bottom, it is cased with inductance coil, body lower end
Portion is built-in with the magnetive cord that can in inductance coil move axially corresponding with described inductance coil, this magnetic
Iron core involves in downrod lower end.
Preferably the coefficient of elasticity of described sensing spring is more than the coefficient of elasticity of described damping spring, so that
Washing tube increases weight, and after damping spring is fully compressed, the change of washing tube weight causes sensing spring to stretch.
Obtain damping effect for air damping can be made full use of, be connected with step at described amortisseur outer casing underpart
Style ferrules, is provided with sealing ring between this stepped ramp type lasso and described body.So amortisseur shell in
Supporter is formed below the most airtight air chamber, and it constitutes " having a double meaning gas together with the air chamber above supporter
Room ", strengthen air damping effect, its principle is on supporter to move, upper plenum supercharging, lower section air chamber
Decompression, pressure differential has obstruction trend to moving on supporter；Supporter moves down situation in like manner.Step jacket
It is provided with sealing ring between circle and described body, but set physical ability opposing seal circle moves up and down, such as piston
As moving in plug tube.
Magnetive cord of the present invention involves and refers to that magnetive cord upper end and downrod lower end are even in downrod lower end
Connecing, when suspension rod, relative to when moving on amortisseur shell, (really amortisseur shell moves down, in suspension rod holding
Lower coordination), magnetive cord moves.
It can also be to be provided with spring between suspension rod and magnetive cord that described magnetive cord involves in downrod lower end,
This spring upper end is connected in downrod lower end, and this lower spring end is connected in magnetive cord.When suspension rod is relative to amortisseur
When moving on shell, shifting on magnetive cord is pulled to have a hysteresis, during showing washing tube weightening finish,
So far the stage, spring described in early stage is first stretched, and later stage magnetive cord is pulled shifting；So can be
Relatively large weight range ability detects.
Preferably described body bottom has the cervical region of radial contraction；
It is cased with inductance coil outside described body bottom to refer to be cased with inductance coil outside described cervical region；
Described body bottom is built-in with and corresponding with described inductance coil can move axially in inductance coil
Magnetive cord refers to that described cervical region is built-in with can in inductance coil move axially corresponding with described inductance coil
Magnetive cord.
Body upper end of the present invention can have the retaining wall that footpath is inwardly prolonged, and described body upper end is by being connected in
State supporter and this retaining wall of fingerstall body be presented herein below by being connected in below supporter, described spring catch platform pushes up and is pressed with
Sensing spring refers to that on spring catch platform, top is pressed with sensing spring, and this sensing spring upper end relies on described retaining wall.
The present invention is further illustrated below in conjunction with the accompanying drawings with detailed description of the invention.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that the present invention is arranged on washing machine；
Fig. 2 is an embodiment structural representation of sensing device of the present invention；
Fig. 3 is another embodiment structural representation of sensing device of the present invention；
Fig. 4 is that the washing tube weight of Fig. 2 device of the present invention is bent with the change of sensors inductance winding inductance quantity
Line chart；
Fig. 5 is that the washing tube weight of Fig. 3 device of the present invention is bent with the change of sensors inductance winding inductance quantity
Line chart；
Fig. 6 is the enlarged drawing of Fig. 2 device bottom area elliptica.
Labelling in figure: 1 outer case, 2 washing tubes, 3 hook A, 4 hook B, 5 suspension rods, 6 cushion blocks,
7 amortisseurs, 8 amortisseur shells, 9 supporters, 10 damping springs, 11 bodies, 11-1 cervical region, 11-2
Retaining wall, 12 magnetive cords, 13 sensing springs, 14 inductance coils, 15 lassos, 16 springs, 17 seal
Circle.
Detailed description of the invention
Embodiment one
The sensing device of receiving material weight in test tub of washing machine, on washing machine box body 1 inwall
Corner, four, portion is respectively connected with a hook A3, is connected with four in tub of washing machine 2 outer wall bottom circumferentially-spacedly
Individual hook B4, hook B are the most corresponding one by one with hook A, and on hook A, extension is connected with suspension rod 5, and warp
Cushion block 6 consolidates, and hook B is connected with amortisseur 7, in amortisseur shell by the company's of extension amortisseur shell 8
Being provided with supporter 9, amortisseur outer casing underpart is built-in with a body 11, and body upper end has footpath and inwardly prolongs
Retaining wall 11-2, this retaining wall is by being connected in below supporter, and body bottom has the cervical region of radial contraction
11-1, suspension rod 5 bottom is built in amortisseur shell, and downrod lower end is positioned at the described neck of body to contraction
At the step formed, described supporter 9 passes and pine is placed on suspension rod, and supporter is upper with amortisseur shell
Between top, top is provided with damping spring 10, and downrod lower end has spring catch platform, this spring catch platform pushes up and is pressed with
Sensing spring 13, it is same that sensing spring upper end relies on the retaining wall of described body, damping spring and sensing spring
It is placed on suspension rod axle, and damping spring is positioned at above sensing spring；Radial contraction described in body bottom
Be cased with inductance coil 14 outside cervical region, the cervical region of this radial contraction be built-in with corresponding with inductance coil can be in electricity
The magnetive cord 12 that sense coil moves axially, this magnetive cord is connected in downrod lower end.
In the present invention, the gravity of washing tube puts on amortisseur shell, and this gravity makes washing tube together with damping
Under device shell grand, upper end hangs the suspension rod 5 of the hook A being connected in washing machine box body through the spring catch of its lower end
Platform passes to sensing spring 13, body 11, supporter 9 and damping spring 10 successively this gravity, makes
Sensing spring and damping spring compression；When not rubbing between supporter 9 and amortisseur shell 8, wash
The gravity washing bucket is fully applied on sensing spring and damping spring；Rub between supporter and shell
During wiping, elastic force produced by sensing spring compression is applied to sense bullet with the spring catch platform of downrod lower end
Whether the pressure on spring obtains balance, therefore rub between the unsupported body of the deflection of sensing spring and shell
The impact wiped.The coefficient of elasticity into sensing spring can be equipped with more than the coefficient of elasticity of damping spring, so
When washing tube gravity causes sensing spring and damping spring compression, sensing spring compress variation is less than damping
Compression deformation of the spring amount, so that after damping spring is fully compressed, washing tube gravity increases Compression alone
Sensing spring.The coefficient of elasticity of sensing spring is designed to sufficiently large, it is possible to reduce the deflection of sensing spring,
Such that it is able to reduce the volume of inductance coil.Fig. 4 represents washing tube weight and sensors inductance coil inductance
The change curve of amount.
Embodiment two
What this example was different from example is the lasso 15 being connected with stepped ramp type at amortisseur outer casing underpart, this lasso
Bottom radial contraction, the step that radial contraction is formed is combined with the sealing ring 17 of longitudinal section L-shaped, and this is close
The cover of seal is connivent in opening's edge under amortisseur shell, and inside sealing ring, front cover is corresponding to described body
Outer wall.Other structures are identical with upper example.This example sensing device can be each in the upper and lower both sides of supporter
Form a damping air chamber, it is thus achieved that preferably air damping damping effect.
Embodiment three
What this example was different from example two is to be provided with spring 16 between downrod lower end and magnetive cord, this bullet
Spring upper end is connected in downrod lower end, and this lower spring end is connected in magnetive cord.Other structures are identical with example two.
Washing tube gravity makes suspension rod relative to when moving on amortisseur shell, pulls shifting on magnetive cord to have one delayed
Phenomenon, during showing washing tube weightening finish, spring 16 is first stretched, and magnetive cord is led on position subsequently
Move；So can detect in relatively large weight range ability.Fig. 5 represents washing tube weight and sensor electricity
The change curve of sense winding inductance quantity.
Claims (7)
1. the sensing device of receiving material weight in test tub of washing machine, has and is connected to washing machine box
The hook A (3) in body (1) upper inside wall corner and be connected to tub of washing machine (2) outer wall bottom
Hook B (4), hook B is the most corresponding with hook A, and on hook A, extension is connected with suspension rod (5), links up with B
On be connected with amortisseur (7) through hanging even amortisseur shell (8), be provided with supporter in described amortisseur shell
(9), it is characterized in that described amortisseur outer casing underpart is built-in with a body (11), this body upper end is by being connected in
Below described supporter, described suspension rod bottom is built in amortisseur shell, and downrod lower end is positioned at described set
Body bottom, described supporter passes and pine is placed on suspension rod, the upper top of supporter and described amortisseur shell
Between top be provided with damping spring (10), downrod lower end has spring catch platform, on this spring catch platform top be pressed with biography
Sense spring (13), damping spring and sensing spring are placed on suspension rod coaxially, are cased with outside described body bottom
Inductance coil (14), body bottom be built-in with corresponding with described inductance coil can be axial in inductance coil
The magnetive cord (12) of movement, this magnetive cord involves in downrod lower end.
2. sensing device as claimed in claim 1, is characterized in that the coefficient of elasticity of described sensing spring is big
Coefficient of elasticity in described damping spring.
3. sensing device as claimed in claim 1 or 2, amortisseur outer casing underpart described in its feature is connected with
Stepped ramp type lasso (15), is provided with sealing ring (17) between this stepped ramp type lasso and described body.
4. sensor as claimed in claim 1 or 2, is characterized in that described magnetive cord involves in suspension rod
Lower end refers to that magnetive cord upper end is connected with downrod lower end.
5. sensor as claimed in claim 1 or 2, is characterized in that described magnetive cord involves in suspension rod
Lower end refers to be provided with spring (16) between suspension rod and magnetive cord, and this spring upper end is connected in downrod lower end, should
Lower spring end is connected in magnetive cord.
6. sensor as claimed in claim 1 or 2, is characterized in that described body bottom has radially
The cervical region (11-1) shunk；
It is cased with inductance coil outside institute's art body bottom to refer to outside described cervical region, be cased with inductance coil (14)；
Described body bottom is built-in with and corresponding with described inductance coil can move axially in inductance coil
Magnetive cord refers to that described cervical region is built-in with can in inductance coil move axially corresponding with described inductance coil
Magnetive cord.
7. sensor as claimed in claim 1 or 2, is characterized in that described body upper end has footpath inside
The retaining wall (11-2) prolonged, described body upper end is presented herein below this retaining wall of fingerstall body and leans on by being connected in described supporter
Being connected in below supporter, on described spring catch platform, top is pressed with sensing spring and refers to that on spring catch platform, top is pressed with biography
Sense spring, this sensing spring upper end relies on described retaining wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510023022.4A CN105839354B (en) | 2015-01-17 | 2015-01-17 | Test the sensing device of tub of washing machine intraluminal interior weight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510023022.4A CN105839354B (en) | 2015-01-17 | 2015-01-17 | Test the sensing device of tub of washing machine intraluminal interior weight |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105839354A true CN105839354A (en) | 2016-08-10 |
| CN105839354B CN105839354B (en) | 2018-01-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510023022.4A Active CN105839354B (en) | 2015-01-17 | 2015-01-17 | Test the sensing device of tub of washing machine intraluminal interior weight |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017114274A1 (en) * | 2015-12-30 | 2017-07-06 | 合肥海尔洗衣机有限公司 | Vibration damping device having weighing function and washing machine |
| CN109620094A (en) * | 2018-11-15 | 2019-04-16 | 浙江欧琳生活健康科技有限公司 | A kind of dish-washing machine and its control method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1241658A (en) * | 1998-07-14 | 2000-01-19 | Lg电子株式会社 | Method for sensing water level and vibration of washing mahcine and apparatus therefor |
| JP2007111313A (en) * | 2005-10-21 | 2007-05-10 | Matsushita Electric Ind Co Ltd | Drum type washing machine |
| CN101223309A (en) * | 2005-09-20 | 2008-07-16 | Itw美达丰家电产品部件有限公司 | System for detecting operating parameters of an electronic household appliance featuring a relatively movable component |
| CN204608414U (en) * | 2015-01-17 | 2015-09-02 | 杭州神林电子有限公司 | The sensing device of contents weight in test tub of washing machine |
-
2015
- 2015-01-17 CN CN201510023022.4A patent/CN105839354B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1241658A (en) * | 1998-07-14 | 2000-01-19 | Lg电子株式会社 | Method for sensing water level and vibration of washing mahcine and apparatus therefor |
| CN101223309A (en) * | 2005-09-20 | 2008-07-16 | Itw美达丰家电产品部件有限公司 | System for detecting operating parameters of an electronic household appliance featuring a relatively movable component |
| JP2007111313A (en) * | 2005-10-21 | 2007-05-10 | Matsushita Electric Ind Co Ltd | Drum type washing machine |
| CN204608414U (en) * | 2015-01-17 | 2015-09-02 | 杭州神林电子有限公司 | The sensing device of contents weight in test tub of washing machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017114274A1 (en) * | 2015-12-30 | 2017-07-06 | 合肥海尔洗衣机有限公司 | Vibration damping device having weighing function and washing machine |
| CN109620094A (en) * | 2018-11-15 | 2019-04-16 | 浙江欧琳生活健康科技有限公司 | A kind of dish-washing machine and its control method |
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| Publication number | Publication date |
|---|---|
| CN105839354B (en) | 2018-01-09 |
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