CN107906838A - Opener and the household electrical appliance with the opener - Google Patents
Opener and the household electrical appliance with the opener Download PDFInfo
- Publication number
- CN107906838A CN107906838A CN201711338313.8A CN201711338313A CN107906838A CN 107906838 A CN107906838 A CN 107906838A CN 201711338313 A CN201711338313 A CN 201711338313A CN 107906838 A CN107906838 A CN 107906838A
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- Prior art keywords
- opener
- crank
- gear
- drawer
- housing
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/02—Doors; Covers
- F25D23/028—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D25/00—Charging, supporting, and discharging the articles to be cooled
- F25D25/02—Charging, supporting, and discharging the articles to be cooled by shelves
- F25D25/024—Slidable shelves
- F25D25/025—Drawers
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Refrigerator Housings (AREA)
Abstract
The present invention relates to a kind of opener (1), it is used to open drawer (3) OR gate body (4), it is characterised in that the opener (1) includes:Power section, it is with motor (5);Output par, c, it has the first arcuation section (12) with crank (8), the crank;Running part, the moment of torsion from motor (5) is delivered to the output par, c by it so that crank (8) rotation of output par, c;Housing (2), it accommodates the power section and the running part;Wherein, as crank (8) rotates, the first arcuation section (12) rotatably engageable drawer (3) OR gate body (4) of crank (8) simultaneously promotes the drawer (3) OR gate body (4) to open.The invention further relates to the household electrical appliance that one kind includes the opener (1).
Description
Technical field
The present invention relates to a kind of opener, it can be used for opening various drawer OR gate bodies, such as open the families such as refrigerator
The drawer OR gate body of electrical appliance opens drawer OR gate body of cupboard box-type furniture etc. in home life.The invention further relates to
Household electrical appliance of the opener etc..
Background technology
In the prior art, the drawer OR gate body of the household electrical appliance such as refrigerator or cupboard box-type furniture etc. is respectively provided with magnetic attracting portion
Point, it is tight shut-off to realize.Except drawer OR gate body is carried out it is artificial it is manually opened in addition to, it is also desirable to use various openers
Automatically turned on to realize, the effect of user's rapid operation is allowed to reach.But existing automatic-opening mechanism there are as follows
Defect.
The automatic-opening mechanism that presently, there are includes two kinds of structures substantially:One kind is rack-and-pinion, its outlet terminal is
Rack, the promotion to drawer OR gate body is realized by rack.Another kind is electromagnet, and current direction is accessed by varying electromagnet
It is allowed to produce same polarity magnetic field, is opened with realizing.But in the first structure, a certain section only in rack stroke is played reality
Impetus, and remaining stroke because do not do work and caused by power output waste.In second of structure, electromagnet mechanism is opened every time
It will charge, to produce the magnetic force for promoting effect enough, energy consumption is very high.In addition, for refrigerator drawer OR gate body, open
Mechanism needs to be installed on inside refrigerator cabinet body, this requires good sealing water resistance.According to rack-and-pinion or electromagnet
The drive scheme of formula, then must integrally carry out shell seal, then waterproof project structure design is extremely complex to it.
In addition, in order to realize the function of automatic opening, mechanism often takes a longer space in opening direction, not only
The volume of opener is only increased, can also cause refrigerator or the overall longitudinal separation along drawer OR gate body opening direction of cabinet to draw
Long, so that automatic-opening mechanism volume increases, and refrigerator or cabinet volume also increase, and this cost increase is any production
Producer is undesirable.
It can realize that the effective of drawer OR gate body opens therefore, it is necessary to a kind of, while meet that small, energy consumption is low, be easy to
The automatic-opening mechanism of the requirements such as sealing.
The content of the invention
This programme is directed to problems as mentioned above and demand, proposes a kind of opener.By the feature of act listed hereinafter,
The opener solves the above-mentioned problems in the prior art, and with other unmentioned advantages above.
Present invention firstly provides a kind of opener, it is used to open drawer OR gate body, wherein, the opener bag
Include:
Power section, it is with motor;
Output par, c, it has the first arcuation section with crank, the crank;
Running part, the moment of torsion from motor is delivered to the output par, c by it so that the crank rotation of output par, c;
Housing, it accommodates the power section and the running part;
Wherein, as crank rotates, the rotatably engageable drawer OR gate body of the first arcuation section of crank simultaneously promotes the drawer
OR gate body is opened.
Alternatively, the motor is direct current generator, and optionally carries out rotating and reverse operation.
Alternatively, the power section also has worm screw, and wherein motor drives worm screw rotation.
Alternatively, the running part of the opener includes split nesting gear, and the split nesting gear includes can
Separated first gear part and second gear part, wherein first gear part have more straight than second gear part bigger
Footpath.
Alternatively, the first gear part of the split nesting gear is made of plastic material, the second gear
Part is made of metal material.
Alternatively, the running part includes sliding mechanism, when the moment of torsion of transmission is less than predetermined value, the sliding mechanism
Moment of torsion is transmitted, when the moment of torsion of transmission is more than predetermined value, the sliding mechanism skids.
Alternatively, the sliding mechanism includes the Part I with ratchet and the Part II with pawl, works as transmission
Moment of torsion when being less than predetermined value, ratchet and engaged pawl simultaneously transmit moment of torsion, and when the moment of torsion of transmission is more than predetermined value, pawl occurs
Elastic deformation between ratchet and pawl so as to skid.
Alternatively, the sliding mechanism is made of plastics.
Alternatively, the running part of the opener include the first built-up gear for being engaged with power section and with it is defeated
Go out the second built-up gear of part engagement.
Alternatively, first built-up gear is made of plastics, and second built-up gear is made of metal.
Alternatively, the crank is located at outside housing.
Alternatively, the output par, c also has output gear and output shaft, wherein output shaft, output gear and crank three
Person rotates synchronously.
Alternatively, the output gear is located in housing, and the output shaft extends through housing, the crank housing it
The output shaft is connected to outside.
Alternatively, the output shaft engages output gear by polygonized structure portion.
Alternatively, the end of the output shaft has convex ribs, it is bonded in the recess with correspondingly-shaped of crank,
So that output shaft is rotated synchronously with crank.
Alternatively, the crank has crank vertex, and the crank vertex is wrong with crank rotation axis in a lateral direction
Open.
Alternatively, the crank vertex in a lateral direction with crank rotational axis offset 18mm~28mm.
Alternatively, the opener further includes position sensing device.
Alternatively, the position sensing device includes being arranged at the Hall detection part of the housing of opener and is arranged at
The magnet steel of the afterbody of crank.
Alternatively, the Hall detection part has the first Hall test side and the second Hall for being used for detecting magnet steel position
Test side, when crank is in initial position, the magnet steel of its afterbody is close to the first Hall test side, when crank is in the open position
When its afterbody magnet steel close to the second Hall test side.
Alternatively, the housing includes upper shell and lower housing shell, and the contact surface of the upper shell and lower housing shell is using ultrasound
Wave soldering connects.
Alternatively, it is provided with sealing ring between output shaft and housing, the sealing ring includes being formed the of outer ring sealing
One raised and forming inner ring sealing second is raised.
The present invention also proposes a kind of household electrical appliance, it includes drawer OR gate body, and foregoing opener.
Alternatively, the household electrical appliance are refrigerators.
More description in detail is carried out to implementing most highly preferred embodiment of the invention below in conjunction with attached drawing, so as to can be easily
Understand the features and advantages of the present invention.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, hereinafter by the attached drawing of the embodiment of the present invention into
Row is simple to be introduced.Wherein, attached drawing is used only for displaying some embodiments of the present invention, rather than the whole embodiments of the present invention are limited
It is formed on this.
Fig. 1 illustrates exemplary application of the opener in refrigerator;
Fig. 2A -2B illustrate the example process that opener pushes refrigerator drawer open;
Fig. 3 illustrates the three-dimensional view of one embodiment of opener;
Fig. 4 illustrate remove upper shell after opener three-dimensional view;
Fig. 5 illustrates the dimensional decomposition structure diagram of one embodiment of opener;
Fig. 6 illustrates another dimensional decomposition structure diagram of one embodiment of opener;
Fig. 7 illustrates the power section of one embodiment of opener;
Fig. 8 A-8B illustrate the running part of one embodiment of opener;
Fig. 9 A-9C illustrate the exemplary embodiment of sliding mechanism;
Figure 10 A-10B illustrate the example combinations gear of running part;
Figure 11 A-11C illustrate the output par, c of one embodiment of opener;
Figure 12 illustrates an exemplary embodiment of crank;
Figure 13 illustrates the arrangement relation between crank and the housing of opener;
Figure 14 illustrates the upper-lower casing part of opener, and the sealing between upper-lower casing;
Figure 15 A-15B illustrate the sealing between output shaft and upper shell;
Figure 16 illustrates the exemplary thrust stroke curve of certain opener;
Figure 17 illustrates the exemplary speed stroke curve of certain opener.
Embodiment
In order to enable the purpose, technical scheme and advantage of technical scheme are clearer, below in conjunction with this
The attached drawing of invention specific embodiment, is clearly and completely described the technical solution of the embodiment of the present invention.It is identical in attached drawing
Reference numeral represents identical component.It should be noted that described embodiment is the part of the embodiment of the present invention, without
It is whole embodiments.Based on described the embodiment of the present invention, those of ordinary skill in the art are without creative work
On the premise of all other embodiments obtained, belong to the scope of protection of the invention.
In being described below, opener 1 is installed on refrigerator, and specifically for opening the drawer 3 of refrigerator.However, this
The invention opener 1 is not limited to application scenario described below, but available for the drawer OR gate for opening various devices
Body, described device include but not limited to household electrical appliance, cupboard box-type furniture etc..
Fig. 1 illustrates example installation positions of the opener 1 according to the present invention in refrigerator.Herein, for convenience
For the sake of, the description that orientation is carried out with reference to tri- directions of X, Y, Z illustrates, wherein drawer opening direction (the referred to as opening square of refrigerator
To) it is defined as Y direction;Refrigerator short transverse (referred to as short transverse) is defined as Z-direction in refrigerator overall structure;Laterally
X-direction is defined as in the Y direction and Z axial directions (referred to as horizontal direction).
Referring to Fig. 1, refrigerator includes drawer 3 and door body 4, and the opener 1 is installed on the lower section of drawer 3, for promoting
Drawer 3.The opener 1 can be also installed near door body 4, for opening the door body 4.
In the illustrated embodiment, the opener 1 is preferably mounted at the lower section of refrigerator drawer 3.The opener 1 is preferred
It is located at the near center location of whole drawer 3 in the X-axis direction, in the Y-axis direction slightly towards the opening end of drawer 3, so as to have
Realize to effect stress balance when drawer 3 is open, and cause opener 1 to play optimal pushing function.
Fig. 2A-B show groundwork process of opener 1 of the present invention:The power section of opener 1
Directly or indirectly driving crank 8 rotates.As crank 8 rotates, the rotatably engageable drawer 3 of crank 8, and promote drawer 3 to open.
Wherein, in fig. 2, crank 8 is in initial position, it corresponds to the closed position of drawer 3;In fig. 2b, crank 8 is in and opens
Position is opened, it corresponds to the open position of drawer 3.Form illustrates the totality of opener 1 to Fig. 3-6 in a different view respectively
View, wherein Fig. 3 illustrate the three-dimensional view of one embodiment of opener 1, and in the figure, crank 8 is in shown in Fig. 2A
Initial position.Fig. 4 illustrate remove upper shell 27 after opener 1 three-dimensional view.Attached drawing 5-6 is with explosive view
Mode illustrates all parts/part of opener 1.
The concrete structure of opener 1 will be described herein-after.
In exemplary embodiment shown in the drawings, opener 1 mainly includes power section, running part, output section
Divide, housing parts, and position sensing device.Hereafter specifically will partly it be described to each.It should be noted that only describe herein
The exemplary embodiment of the various pieces of opener 1, the power section, running part, output par, c, housing parts and
Each single item in position sensing device can make a variety of modifications.
1. power section
Power section is used for providing power for opener 1.As shown in fig. 7, power section includes motor 5, it is whole
The power source of opener 1.The motor 5 finally drives crank 8 to rotate, and then promotes drawer 3 to open.
Power section may also include worm screw 11.When motor 5 rotates, worm screw 11, which is driven, to be rotated.Wherein, worm screw 11
The motor output shaft of motor 5 is may be fixedly attached to, or is made and is integrated with motor output shaft.
Preferably, the motor 5 is direct current generator.It is highly preferred that motor 5 can be selectively performed forward or reverse behaviour
Make.For example, when motor 5 rotate forward operation, it can drive crank 8 to push drawer open;And when motor 5 carries out reverse turn operation,
It withdraws crank 8, i.e. so that crank 8 returns to its initial position.
The power provided by motor 5 can be directly passed to crank 8.More preferably, however, the power passes through driving section
Divide and be delivered to crank 8.
2. running part
The running part of opener 1 is delivered to the crank 8 of output par, c for the moment of torsion of ultromotivity in future part.Transmission
Part may include multiple gears being engaged with each other, and play the role of moment of torsion transmission and deceleration.Preferably, running part, which further includes, beats
Sliding mechanism 15, to skid when transmission moment of torsion is improper, interrupts the transmission of moment of torsion, so as to protect whole opener 1.Its
In, when the moment of torsion that sliding mechanism 15 transmits is less than predetermined value, the sliding mechanism 15 can normally transmit moment of torsion, when transmission
When moment of torsion is more than predetermined value, the sliding mechanism 15 skids.Hereinafter with reference to exemplary implementation of the attached drawing to running part
Example is described.
Fig. 8 A and 8B respectively show the assembling rearview and decomposition view of running part.As shown in the figure, running part
Including the first built-up gear 6, sliding mechanism 15, split nesting gear 7 and the second built-up gear 9.Power from power section
The first built-up gear 6 is delivered to first, and sliding mechanism 15,7 and of split nesting gear are sequentially delivered to by the first built-up gear 6
Second built-up gear 9.Second built-up gear 9 then continues for power to be transferred to the crank 8 of output par, c.
Gearing relationships index line is denoted in Fig. 8 B.As can be seen that for each meshing relation, using small tooth
Wheel is meshed with gear wheel and moment of torsion is delivered to the mode of gear wheel from pinion gear, to realize deceleration.
The first built-up gear 6, sliding mechanism 15, split nesting gear 7 and second of running part will be hereafter introduced respectively
Built-up gear 9.
2.1 first built-up gears 6
First built-up gear 6 is engaged with power section.First built-up gear includes two parts:Worm gear portion 10 and biography
Dynamic pinion portion.The two parts of first built-up gear 6 are preferably integrally formed structure.Wherein worm gear portion 10 is used for
Engaged with worm screw 11, so as to receive the moment of torsion from worm screw 11.Drive pinion part is used to continue to be delivered to by the moment of torsion
Sliding mechanism 15 described below.
Wherein, the diameter of worm gear portion 10 is less than the diameter of drive pinion part, is slowed down with realizing.
Preferably, the two parts of the first built-up gear 6 are integrally formed plastic component structures, so as to realize good
Noise reduction effect.
2.2 sliding mechanisms 15
In use, due to improper operation or various fortuitous events, it may occur that the excessive situation of the moment of torsion of transmission, this
The inner body of opener 1 may be damaged.For example, refrigerator drawer may be subject to external force suddenly in the on state and be dashed forward
So close, cause crank 8 to be subject to enormous impact.
In order to avoid the generation of the above situation, sliding mechanism 15 is set to protect a whole set of unlatching preferably in running part
Mechanism 1.In the case of there are sliding mechanism 15, if the torque that running part is subject to is more than the skidding threshold values of sliding mechanism 15,
Then action of " skidding " occurs for sliding mechanism 15, interrupts the transmission of torque, so as to form protection to the various pieces of opener 1.
Fig. 9 A-C illustrate the specific configuration of sliding mechanism 15.Wherein, as Fig. 9 B, sliding mechanism 15 include separable
Two parts:Part I 18 with ratchet and the Part II with pawl 19.In a free state, Part II 19
Pawl is flared out naturally.When assembling Part I 18 and Part II 19, due to outer of pawl, the two parts lead to
Cross pawl to be bonded together with ratchet, as shown in Figure 9 C.So as to which (moment of torsion of transmission is less than predetermined during normally-open
Value), ratchet and engaged pawl, the ratchet of the moment of torsion from power section from Part I 18 are delivered to the spine of Part II 19
Pawl, and then drive whole Part II 19 to rotate.When Part II 19 rotates, it is engaged moment of torsion after resuming by gear
It is delivered to split nesting gear 7.And in improper stress (moment of torsion of transmission is more than predetermined value), since torque is more than sliding mechanism
15 skidding threshold values, then pawl occur elastic deformation and with ratchet portions disengage, i.e., between ratchet and pawl occur " skidding ".
The skidding threshold values of sliding mechanism 15 can be adjusted by varying the size of pawl and ratchet.
15 parts of sliding mechanism with above-mentioned construction are few, thus it is simple in structure, take up space it is small.In addition, it is processed
It is convenient, processed using common Shooting Technique.Moreover, above-mentioned sliding mechanism 15 only need to be manually by pawl in assembling
Ratchet portions are partially placed into, avoid the installation process of complexity.
Preferably, the ratchet portions of sliding mechanism 15 and detent portions are plastic material, this aspect, and plastic material is easy
In the deformation for realizing pawl, on the other hand, compared to the situation using metal material, being had using plastic material reduces noise
Advantage.
2.3 split nesting gears 7
Figure 10 A-10B illustrate the exemplary embodiment of split nesting gear 7.
It is preferred that as shown in Figure 10 B, split nesting gear 7 includes two separable 20 and second teeth of first gear part
Part 21 is taken turns, wherein first gear part 20 is used to engage with the Part II 19 of sliding mechanism 15, and is rotated by its drive.The
One gear parts 20 have the diameter than 21 bigger of second gear part.
First gear part 20 and second gear part 21 can nest together, using polygon shaft well format or class spline
Form cooperates, to transmit moment of torsion.
The first gear part 20 for being preferably located at torque transmission paths more upstream is plastic construction, positioned at moment of torsion transmission
The further downstream second gear part 21 in path is metal structure.With such a configuration, in further downstream low of torque transmission paths
Fast end is metal structure, so that ensure that the low speed end strength of gear teeth, so as to transmit and export larger torque, meanwhile, turning round
The speed end of square bang path more upstream is plastic component structure, to reduce noise.It is nested using this split type dissimilar material
Gear structure effectively gear fan-out capability and noise control are balanced.
2.4 second built-up gears 9
With as shown in Figure 8 B, the second built-up gear 9 includes first gear engaging piece and second gear engaging piece.Wherein first
Gear meshing portions are meshed with the second gear part 21 of split nesting gear 7, to receive second from split nesting gear 7
The moment of torsion of gear parts 21.Second built-up gear 9 is engaged with output par, c, and specifically, the second gear of the second built-up gear 9 is nibbled
Conjunction portion is used to engage with output par, c described below, so as to transfer torque to output par, c.
Second built-up gear 9 is preferably integrative-structure made of metal.Second built-up gear 9 is arranged to metal structure energy
Enough ensure the low speed end strength of gear teeth, so as to transmitting and exporting larger torque.
For whole running part, according to the direction of power transmission, the first built-up gear 6 near power section is
Plastic component structure, sliding mechanism 15 downstream is plastic component structure, and ensuing split nesting gear 7 is plastic construction and metal knot
Split gear that structure nesting forms and positioned at upstream be plastic material on power direction of transfer, is metal positioned at downstream
Material.The second built-up gear 9 near output block totally uses metal gear.Total structure in this way, in moment of torsion
The further downstream low speed end of bang path is metal structure, so as to ensure that the low speed end strength of gear teeth, so as to transmit and export compared with
Big torque, meanwhile, it is plastic component structure in the speed end of torque transmission paths more upstream, to reduce noise.Therefore, effectively
Gear fan-out capability and noise control are balanced.
3. output par, c
Figure 11 A- Figure 11 C illustrate an exemplary embodiment of output par, c.Wherein Figure 11 A illustrate output par, c
General illustration, Figure 11 B and Figure 11 C illustrate the decomposition view of output par, c with different visual angles respectively.
As shown in the figure, output par, c may include crank 8, trip bolt 23, sealing ring 26, output gear 16, output shaft
17.Output gear 16 is fixedly connected by trip bolt 23 with crank 8, and limits output gear 16 with crank 8 in output gear
Separation on axis direction.Sealing ring 26 can be sleeved on outside output shaft 17, to aid in fixed and seal.Output shaft 17, output gear
Wheel 16 is rotated synchronously with 8 three of crank.
Referring to Figure 11 B and Figure 11 C, the end of output shaft 17 has from the end of output shaft along the axially extending of output shaft
Positioning cylinder structure 25, and convex ribs 24.Positioning cylinder structure 25 can be an integral structure with convex ribs 24.The number of convex ribs 24
It can be multiple to measure, such as two.Positioning cylinder structure 25 is bonded in the respective recess of crank 8 (preferably referring to Fig. 6), with
Axially position in output shaft 17 relative to crank 8.In addition, output shaft 17 can have polygonized structure portion (such as hexagon knot
Structure portion), the gear hole for the correspondingly-shaped with output gear 16 coordinates, to transmit moment of torsion.Pass through said structure, output shaft 17
Rotation can stably be delivered to crank 8.When drawing-out type drawer, output gear 16 due to receive the moment of torsion from motor 5 and
Rotation, and drive output shaft to rotate, and output shaft delivers torque to crank 8 in a manner of convex ribs are driven.
Here, designed using the split of output gear 16 and output shaft 17, its effect brought at least that, can use
General powder metallurgical technique manufacture output gear 16, to reduce cost;And use forging and stamping or process for machining manufacture output shaft
17, with proof strength, avoid causing the structures such as convex ribs 24 in output shaft assembly because of mistake because crank bears larger load
Carry or impact and be broken.
It hereafter will specifically introduce the concrete structure of crank 8.
Accoding to exemplary embodiment, crank 8 is the structure of thickness equalization, it may include there is the base portion of axis hole, shank
And afterbody.The afterbody can be used for the magnet steel 32 of installation site sensing device, as described below.Crank base portion can be circular
Structure, axis hole are formed in crank base portion so that crank 8 can be revolved around crank rotation axis between initial position and open position
Turn.
During drawing-out type drawer OR gate body, the power for promoting drawer OR gate body is change:First switch on needed for the stage
The thrust wanted is maximum, because preceding force periodically needs to overcome the magnetic attraction on refrigerator drawer OR gate body.With drawer OR gate body
It is open, magnetic attraction moment diminishes, and also moment diminishes required thrust.The structure of the width gradual change of crank 8 meets so
Power change demand:The wider portion of shank corresponds to the thrust larger stage, and the narrower part of shank corresponds to thrust
Small follow-up phase.The exemplary variations of crank thrust can be found out in figure 16 during unlatching.
As shown in figure 12, crank 8 has crank vertex 22, it is away from crank rotation axis on opening direction (Y direction)
The farthest point of line.It should be noted that in actual crank, crank vertex 22 is not necessarily 1 stringent " point ", but can be song
Rate radius is the arc sections of such as 1mm.When crank 8 is in initial position, crank vertex 22 is initial for crank 8 and drawer
Contact point.
(X-direction) staggers with crank rotation axis in a lateral direction on crank vertex 22, that is, deviates a distance L.Should be away from
Very big to the load effect of the motor 5 of opener from L, the bigger torque request to motor 5 of L values is higher, but high thrust
Stroke is also bigger, and L is smaller, then lower to the torque request of motor 5, but high thrust stroke is then also smaller.Motor load with
Need to take equilibrium valve between high thrust stroke so that motor load as far as possible reduces and high thrust stroke is enough to depart from refrigerator drawer
Magnetic attraction and negative-pressure sucking.Preferably, distance L is 18mm~28mm, and especially for 23mm, high thrust stroke can at this time
Up to 7mm.And refrigerator drawer is in opening process, as long as 5mm distances can be opened, it becomes possible to completely disengage refrigerator pumping
The suction-combining force of drawer.
As shown in figure 12, which is the first arcuation section 12 and 14 cross-shaped portion of straightway.Straightway 14 and transverse direction
Angle [alpha] between the X of direction is arranged to 3 ° to 15 °, is preferably set to 5 °.
The shank of crank 8 is mainly limited by the first arcuation section 12 that radius is R1 and the second arcuation section 13 that radius of curvature is R2
It is fixed.The radius of curvature of first arcuation section 12 is preferably 500mm.First arcuation section 12 and the second arcuation section 13 are so that the handle of crank 8
Portion is in width gradual change structure described above, i.e. and it is wider at close crank base portion, relatively narrow away from crank base position.
In opening process, 12 rotatably engageable drawer OR gate body of the first arcuation section simultaneously promotes the drawer OR gate body to open.
This design of the shank of crank 8 can bring following technique effect:First, crank structure is meeting body function
Under the premise of, it can play the role of saving material;Second, crank is designed to beloid, then anterior relatively narrow structure position causes
The placement space increase of transmission parts, realizes that the utilization rate of the confined space maximizes;Third, in whole breakdown action, crank
Movement to rotate, the contact with drawer OR gate body of crank profile is always the flexible contact seamlessly transitted, avoids rigid, rank
Jump property is hit, and reduces " click " sound caused by hardness is hit;Fourth, the thrust of the crank with above-mentioned construction meets
Refrigerator drawer OR gate body, initial segment resistance is larger and opening feature that the later stage drastically reduces;Fifth, crank is defeated when crank rotates
What is gone out pushes speed open and can produce an acceleration effect, and curve shown in Figure 17, this meets refrigerator drawer opening feature.
4. housing
Housing 2 includes upper shell 27 and lower housing shell 28.Preferably, in housing 2 accommodate power section, running part and
The output gear 16 of output par, c.The output shaft of output par, c is stretched out through upper shell 27, and as shown in figure 13, crank 8 is located at shell
Outside body 2.Specifically, as shown in Figures 3 and 13, crank 8 is fixed to output shaft 17 in the outside of housing 2 by trip bolt 23.
It is arranged on due to crank 8 outside the cavity that upper shell 27 and lower housing shell 28 are formed so that the waterproof sealing of opener 1 becomes letter
It is single, because only needing to consider the close of 27 joint of sealing, output shaft and upper shell in gap between upper shell 27 and lower housing shell 28
Envelope, the sealing of housing outlet for drawing various connecting lines.
As shown in figure 14, the contact surface of upper shell 27 and lower housing shell 28 uses ultrasonic bonding.Specifically, as shown in the figure,
On the contact surface of upper shell 27 and lower housing shell 28, upper shell 27 is provided with welding guide frame, and lower housing shell 28 is provided with positioning
Structure.Height h1s of the height h2 of the location structure of lower housing shell 28 less than the welding guide frame of upper shell 27.Carrying out ultrasound
When wave soldering connects, lower housing shell 28 and upper shell 27 are engaged along contact surface, and the welding guide frame of upper shell 27 melts, with lower housing shell
Sunk part fusion on the inside of 28 location structure is integrally formed, as shown in part A in Figure 15 A, to realize upper shell 27 with
The non-dismountable sealed connection of housing 28, to realize optimal waterproof or anti-condensation, anti-debris effect.It is connected on using supersonic welding
While ensureing the bonding strength of welding surface between upper shell 27 and lower housing shell 28, than its other party such as glue bonding, screw connections
The connection of formula more can effectively save time and materials, can effectively reduce cost.
In addition, in order to which the sealed connection between upper shell 27 and lower housing shell 28 is better achieved, it be combined with each other place at both
Also seal etc. can be used to be used for the gap for filling up both junctions.
In addition, according to preferred embodiment, also realized using waterproof construction between output shaft 17 and the upper shell 27 of housing 2
Sealing, for example with seal, collision mat etc..It is preferred that as shown in Figure 15 A-15B, in upper shell 27 and the output shaft 17 of housing 2
Between be provided with sealing ring 26.The sealing ring 26 has the first protrusion 34 and the second protrusion 35 of loop shaped, wherein first is convex
Play 34 and form outer ring sealing, the second protrusion 35 forms inner ring sealing, and double-layer seal in this way, can effectively prevent outside
Grease, steam, impurity etc. enter enclosure interior.
Opener 1 using the above structure can use under the wet environment of the refrigerator in household electrical appliance etc., prevent
Aqueous vapor or water mist enter product so that mechanism produces aging.
5. position sensing device
As it was noted above, according to different situations, motor 5 can carry out rotating and reverse operation.In order to preferably by crank 8
Motion state feed back in the electric control system of opener 1, so as to correctly control motor 5 carry out forward or reverse behaviour
Make, position sensing device preferably is set near crank 8, for detecting the current location of crank 8 and/or sensing crank 8
Motion state, and then control motor 5 operation.
In preferred embodiment shown in the drawings, position sensing device is embodied as hall position sensing device, it includes
The magnet steel 32 of the Hall detection part 29 for being arranged at housing 2 and the afterbody for being arranged at crank 8.Hall detection part 29 is specifically
Upper shell 27 is may be disposed at, in the position of the afterbody close to crank 8.
The Hall detection part 29 has the first Hall test side 30 and the second Hall for being used for detecting 32 position of magnet steel
Test side 31.When crank 8 is in initial position, the magnet steel 32 of its afterbody is close to the first Hall test side 30;When crank 8 is in
During open position, the magnet steel 32 of its afterbody is close to the second Hall test side 31.
When drawer OR gate body is in the closed position, crank 8 is in initial position, and the magnet steel 32 and first of its afterbody is suddenly
Your test side 30 is in the near position that connects, and the signal that crank 8 is in initial position by Hall detection part 29 is transferred to control system
System, control system order motor 5 rotates forward passing power, to drive crank 8 to rotate forward.With the rotation of crank 8, its afterbody
Magnet steel 32 will be gradually distance from the first Hall test side 30.After completing to open, crank 8 is in the open position, the magnetic of its afterbody
Steel 32 reaches the position being close with the second Hall test side 31.Hall detection part 29 can by crank 8 by drawer OR gate body
The signal opened in place is transferred to control system, so as to control motor 5 to stop operation, or directly starts reverse turn operation to withdraw song
Handle.
When drawer OR gate body has turned on, crank 8 is in the open position.In order to enable crank 8 returns to initial position, Hall
The signal that drawer OR gate body has turned in place can be transferred to control system, control system order electricity by crank 8 by detection part 29
Machine 5 inverts passing power, to drive crank 8 to reversely rotate.With the rotation of crank 8, the magnet steel 32 of its afterbody will be gradually distance from
Second Hall test side 31, until reaching the position being close with the first Hall test side 30.After the position is reached, Hall inspection
The signal that crank 8 has been returned to initial position by survey component 29 is transferred to control system, so that control system control motor 5 stops
Rotate.
Unless otherwise defined, technical term or scientific terminology used herein should be in fields of the present invention and have
The ordinary meaning that the personage of general technical ability is understood.Used in present patent application specification and claims " the
One ", " second " and similar word are not offered as any order, quantity or importance, and are used only to distinguish different
Part.Equally, the similar word such as "one" or " one " also not necessarily represents quantity limitation." comprising " or "comprising" etc.
Similar word means to occur element before the word or object cover the element for appearing in the word presented hereinafter or object and
It is equivalent, and is not excluded for other elements or object.The similar word such as " connection " or " connected " is not limited to physics
Or the connection of machinery, but electrical connection can be included, it is either directly or indirect." on ", " under ", " left side ",
" right side " etc. is only used for representing relative position relation, after the absolute position for being described object changes, then the relative position relation
May correspondingly it change.
Unless context special provision or obvious explanation, otherwise term as used herein " substantially " is interpreted as in ability
Within the scope of the proper tolerances of domain.Unless otherwise clear and definite context, provided herein is all numerical value can pass through term " substantially "
To correct.
The exemplary embodiment of the present invention, but art technology are described in detail above in reference to preferred embodiment
Personnel it will be appreciated that on the premise of without departing substantially from theory of the present invention, above-mentioned specific embodiment can be made a variety of modifications and
Remodeling, and multiple combinations can be carried out to various technical characteristics proposed by the present invention, structure, and without departing from the protection model of the present invention
Enclose, protection scope of the present invention is determined by appended claim.
Reference numerals list
1 opener
2 housings
3 drawers
4 door body
5 motors
6 first built-up gears
7 split nesting gears
8 cranks
9 second built-up gears
10 worm gear portions
11 worm screws
12 first arcuation sections
13 second arcuation sections
14 straightways
15 sliding mechanisms
16 output gears
17 output shafts
18 Part I
19 Part II
20 first gear parts
21 second gear parts
22 crank vertex
23 trip bolts
24 convex ribs
25 positioning cylinder structures
26 sealing rings
27 upper shells
28 lower housing shells
29 Hall detection parts
30 first Hall test sides
31 second Hall test sides
32 magnet steel
34 first is raised
35 second is raised.
Claims (24)
1. a kind of opener (1), it is used to open drawer (3) OR gate body (4), it is characterised in that opener (1) bag
Include:
Power section, it is with motor (5);
Output par, c, it has the first arcuation section (12) with crank (8), the crank;
Running part, the moment of torsion from motor (5) is delivered to the output par, c by it so that crank (8) rotation of output par, c
Turn;
Housing (2), it accommodates the power section and the running part;
Wherein, as crank (8) rotates, the first arcuation section (12) rotatably engageable drawer (3) OR gate body (4) of crank (8) is simultaneously
The drawer (3) OR gate body (4) is promoted to open.
2. opener (1) as claimed in claim 1, it is characterised in that the motor (5) is direct current generator, and be may be selected
Carry out rotating and reverse operation to property.
3. opener (1) as claimed in claim 1, it is characterised in that the power section also has worm screw (11), wherein
Motor (5) drives worm screw (11) rotation.
4. opener (1) as claimed in claim 1, it is characterised in that the running part of the opener (1) includes dividing
Body nesting gear (7), the split nesting gear (7) include separable first gear part (20) and second gear part
(21), wherein first gear part (20) have than second gear part (21) bigger diameter.
5. opener (1) as claimed in claim 4, it is characterised in that first tooth of the split nesting gear (7)
Wheel part (20) is made of plastic material, and the second gear part (21) is made of metal material.
6. opener (1) as claimed in claim 1, it is characterised in that the running part includes sliding mechanism (15), when
When the moment of torsion of transmission is less than predetermined value, the sliding mechanism (15) transmits moment of torsion, described when the moment of torsion of transmission is more than predetermined value
Sliding mechanism (15) skids.
7. opener (1) as claimed in claim 6, it is characterised in that the sliding mechanism (15) is included with ratchet
Part I (18) and the Part II (19) with pawl, when the moment of torsion of transmission is less than predetermined value, ratchet and engaged pawl
And moment of torsion is transmitted, when the moment of torsion of transmission is more than predetermined value, elastic deformation occurs for pawl so as to occur between ratchet and pawl
Skid.
8. opener (1) as claimed in claim 6, it is characterised in that the sliding mechanism (15) is made of plastics.
9. opener (1) as claimed in claim 1, it is characterised in that the running part of the opener (1) include with
The first built-up gear (6) of power section engagement and the second built-up gear (9) engaged with output par, c.
10. the opener (1) as described in previous claim, it is characterised in that first built-up gear (6) is by plastics system
Into second built-up gear (9) is made of metal.
11. opener (1) as claimed in claim 1, it is characterised in that the crank (8) is located at outside housing (2).
12. opener (1) as claimed in claim 1, it is characterised in that the output par, c also has output gear (16)
With output shaft (17), wherein output shaft (17), output gear (16) and crank (8) three rotates synchronously.
13. opener (1) as claimed in claim 12, it is characterised in that the output gear (16) is located at housing (2)
Interior, the output shaft (17) extends through housing (2), and the crank (8) is connected to the output shaft outside housing (2)
(17)。
14. opener (1) as claimed in claim 12, it is characterised in that the output shaft (17) passes through polygonized structure
Portion's engagement output gear (16).
15. opener (1) as claimed in claim 12, it is characterised in that the end of the output shaft (17) has convex
Muscle (24), it is bonded in the recess with correspondingly-shaped of crank (8) so that output shaft (17) is rotated synchronously with crank (8).
16. opener (1) as claimed in claim 1, it is characterised in that the crank (8) has crank vertex (22), institute
Crank vertex (22) is stated in a lateral direction with crank rotation axis to stagger.
17. opener (1) as claimed in claim 16, it is characterised in that the crank vertex (22) is in a lateral direction
With crank rotational axis offset 18mm~28mm.
18. opener (1) as claimed in claim 1, it is characterised in that the opener (1) further includes position sensing
Device.
19. opener (1) as claimed in claim 18, it is characterised in that the position sensing device includes being arranged at out
The magnet steel (32) of the Hall detection part (29) for opening the housing (13) of mechanism (1) and the afterbody for being arranged at crank (8).
20. opener (1) as claimed in claim 19, it is characterised in that the Hall detection part (29), which has, to be used for
The first Hall test side (30) and the second Hall test side (31) of magnet steel (32) position are detected, when crank (8) is in initial bit
The magnet steel (32) of its afterbody is close to the first Hall test side (30) when putting, the magnetic of its afterbody when crank (8) is in the open position
Steel (32) is close to the second Hall test side (31).
21. opener (1) as claimed in claim 1, it is characterised in that the housing (2) include upper shell (27) and under
The contact surface of housing (28), the upper shell (27) and lower housing shell (28) uses ultrasonic bonding.
22. opener (1) as claimed in claim 12, it is characterised in that set between output shaft (17) and housing (2)
There is sealing ring (26), the sealing ring (26) includes forming the second of first raised (34) of outer ring sealing and formation inner ring sealing
Raised (35).
A kind of 23. household electrical appliance, it is characterised in that it includes drawer (3) OR gate body (4), and in claim 1-22 it is any
Opener (1) described in.
24. household electrical appliance as claimed in claim 23, it is characterised in that the household electrical appliance are refrigerators.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201711338313.8A CN107906838A (en) | 2017-12-14 | 2017-12-14 | Opener and the household electrical appliance with the opener |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201711338313.8A CN107906838A (en) | 2017-12-14 | 2017-12-14 | Opener and the household electrical appliance with the opener |
Publications (1)
Publication Number | Publication Date |
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CN107906838A true CN107906838A (en) | 2018-04-13 |
Family
ID=61865663
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201711338313.8A Pending CN107906838A (en) | 2017-12-14 | 2017-12-14 | Opener and the household electrical appliance with the opener |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108679680A (en) * | 2018-08-31 | 2018-10-19 | 江苏雷利电机股份有限公司 | Open-close type kitchen ventilator actuator and open-close type kitchen ventilator with it |
CN108708633A (en) * | 2018-08-24 | 2018-10-26 | 东莞市维斗科技股份有限公司 | A kind of Fingerprint Lock driving structure for opening/closing of built-in gear group transmission |
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JPH10159441A (en) * | 1996-12-03 | 1998-06-16 | Asmo Co Ltd | Tilt window opening and closing device |
WO2000068538A1 (en) * | 1999-05-05 | 2000-11-16 | Atoma International Corp. | Power drive mechanism for a motor vehicle liftgate |
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CN108708633A (en) * | 2018-08-24 | 2018-10-26 | 东莞市维斗科技股份有限公司 | A kind of Fingerprint Lock driving structure for opening/closing of built-in gear group transmission |
CN108679680A (en) * | 2018-08-31 | 2018-10-19 | 江苏雷利电机股份有限公司 | Open-close type kitchen ventilator actuator and open-close type kitchen ventilator with it |
CN108679680B (en) * | 2018-08-31 | 2024-06-04 | 江苏雷利电机股份有限公司 | Open-close type range hood actuator and open-close type range hood with same |
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