CN208286911U - Sealing structure, hot wind electric machine and food cooking machine - Google Patents

Sealing structure, hot wind electric machine and food cooking machine Download PDF

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Publication number
CN208286911U
CN208286911U CN201721269177.7U CN201721269177U CN208286911U CN 208286911 U CN208286911 U CN 208286911U CN 201721269177 U CN201721269177 U CN 201721269177U CN 208286911 U CN208286911 U CN 208286911U
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Prior art keywords
motor
sealing
sealing structure
sealing element
motor body
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CN201721269177.7U
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Chinese (zh)
Inventor
孙其应
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Panasonic Kitchen Appliances Technology Jiaxing Co ltd
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Panasonic Appliances Microwave Oven Shanghai Co Ltd
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Abstract

The utility model relates to technical field of electric equipment, discloses a kind of sealing structure, is provided with the hot wind generating device of the sealing structure and the food cooking machine using the hot wind generating device.Sealing structure provided by the utility model, is set at motor shaft, comprising: the inboard lid for being provided with the outer box shell of first shaft hole, being provided with the second axis hole, motor shaft are stretched out from motor body, sequentially pass through first shaft hole and the second axis hole.Wherein, sealing structure further includes the sealing element of wound motor axis setting, and the end face for the motor shaft that sealing element and motor body are stretched out and inboard lid are tightly connected.The utility model can provide better seal effect under the premise of low cost for the blower fan structure in food cooking machine.

Description

Sealing structure, hot wind electric machine and food cooking machine
Technical field
The utility model relates to technical field of electric equipment, in particular to a kind of sealing structure is provided with the sealing structure Hot wind electric machine and food cooking machine using the hot wind electric machine.
Background technique
As the improvement of people's living standards, food cooking machine is increasingly entering among the family of people.It utilizes Food cooking machine, not only saves cooking time, but also can efficient process food materials like a dream.
And simultaneously, the technology of food cooking machine is also being continuously improved.In order to keep the moisture of food, at present on the market The food cooking machine using high-temperature steam cooking food is had already appeared.And in order to promote the high-temperature steam in food cooking machine Convection current can install blower in food cooking machine.
Since blower usually passes through motor driven, and motor body is very sensitive to high-temperature steam, therefore usually requiring will Motor body is mounted on except the outer box shell of food cooking machine.Therefore it needs that axis hole is arranged on container body of outer cover, with power supply machine Axis passes through.And in order to correctly drain high-temperature steam, in the prior art usually by the way that the sealing structure at motor shaft is arranged in To improve the tightness of axis hole, and then motor body and other components being mounted near motor are kept apart with high-temperature steam Come.
In the prior art, can fixed copper sheathing be set on the motor shaft of motor, motor shaft and week is filled by copper sheathing The gap of component is enclosed, to achieve the purpose that obstruct high-temperature steam.But due to motor shaft be rotation and copper sheathing be it is fixed, because This gap between the two cannot be completely eliminated, and complete sealing is not achieved, and still have a small amount of high-temperature steam leakage. The high-temperature steam revealed is likely to reduce the electronic device service life of food cooking machine.
Further, since copper sheathing needs to reach accurate cooperation with the components of surrounding, therefore it is required that copper sheathing and surrounding Components machining accuracy with higher, this will greatly improve cost and assembly time.If high-precision cooperation is not achieved It is easy to generate noise because of friction or causes failure.
Utility model content
The purpose of this utility model is to provide a kind of sealing structures, can be food cooking machine under the premise of low cost In blower fan structure provide better seal effect.
Sealing structure provided by the utility model, is set at motor shaft, comprising: is provided with the outer box shell of first shaft hole Body, the inboard lid for being provided with the second axis hole, motor shaft are stretched out from motor body, sequentially pass through first shaft hole and the second axis hole.
Wherein, sealing structure further includes the sealing element of wound motor axis setting, the motor that sealing element and motor body stretch out The end face of axis side and inboard lid are tightly connected.
The utility model additionally provides a kind of hot wind electric machine, including motor, fan blade, heating tube and above-mentioned sealing Structure.Wherein, motor has motor body and motor shaft.Fan blade is socketed on motor shaft.Heating tube is around the periphery side of fan blade To laying.Sealing structure is between fan blade and motor body.
The utility model additionally provides a kind of food cooking machine, the above-mentioned hot wind for being provided with cavity and being mounted on cavity Electric machine.
In terms of existing technologies, the utility model connects motor body and inboard lid by sealing element, to inner The external environment except internal environment and sealing element within side cover body is completely cut off.Due to the electricity for not needing with not stopping rotation Arbor accurately cooperates, therefore low in cost, does not generate noise, is easily installed, and is capable of providing better seal effect.
Preferably, sealing element includes: spring-backed quill.The both ends of spring-backed quill are close with inboard lid and motor body respectively Sealing-in touching.Good sealing can be realized by the compressive deformation of spring-backed quill.
Preferably, sealing element includes rigid casing and two sealing rings.
Two sealing rings that the both ends of rigid casing pass through respectively and inboard lid and motor body are in sealing contact.
By the combination of rigid casing and sealing ring, the mechanical strength of sealing element can be improved, reduce the resistance to height to casing Warm demand, prolongs the service life.
Further, preferably, at least one in two sealing rings is flexible gaskets.It can be right by flexible gaskets Sealing effect plays good guarantee.
Further, preferably, one in two sealing rings is the flange seat being mounted on rigid casing.
Wherein, rigid casing is connected on inboard lid by flange seat, and is connected by flexible gaskets with motor body It connects.
Since there is a large amount of high-temperature steam in the side of inboard lid portion inside, temperature is higher, and in motor side, then because There is certain distance for distance high-temperature steam, so temperature is lower.It is sealed in the side contacted with inboard lid using flange seat, and When the side contacted with motor body is sealed using flexible gaskets, high temperature can be avoided to pad while guaranteeing sealing performance The influence of loop material durability, therefore can preferably extend the service life of sealing element.
In addition, preferably, towards the side shape of motor body on circumferencial direction of the inboard lid along the second axis hole At there is chimb, one end inner circumferential and the chimb of sealing element match.Be arranged chimb can convenient for assembly when sealing element positioning, and And prevent sealing element from contacting with motor shaft, sealing performance is improved while improving the assembly efficiency.
In addition, preferably, being formed with the periphery with one end of sealing element towards the side of motor body in inboard lid The positioning ring to match.Positioning ring is arranged can be further convenient for positioning when assembly sealing element to sealing element, to improve Assembly efficiency.
In addition, being provided with third axis on mounting plate preferably, sealing structure further includes the mounting plate for installing motor Hole.
The motor shaft of motor is pierced by from motor body, sequentially passes through third axis hole, first shaft hole and the second axis hole.
Set motor mounting plate is capable of fixing motor installation, prevents motor oscillating, and then is the leakproofness of sealing element It can provide safeguard.
Detailed description of the invention
Fig. 1 is the perspective exploded view of the utility model first, the 4th embodiment hot wind electric machine;
Fig. 2 is the exploded side schematic diagram of the utility model first, the 4th embodiment hot wind electric machine;
Fig. 3 is the schematic elevation view of the utility model the first, second, third, fourth embodiment hot wind electric machine;
Fig. 4 be the utility model first, the 4th embodiment hot wind electric machine along Fig. 3 cutting line A-A formed Side elevational cross-section schematic diagram;
Fig. 5 is that the utility model first, the 4th embodiment hot wind electric machine are put the sealing element position of Fig. 4 Big schematic diagram;
Fig. 6 is that the utility model second embodiment hot wind generating device is cutd open along the side view that the cutting line A-A of Fig. 3 is formed Face schematic diagram;
Fig. 7 is that amplification of the utility model second embodiment hot wind electric machine in the sealing element position of Fig. 6 is shown It is intended to;
Fig. 8 is that the utility model third embodiment hot wind electric machine is cutd open along the side view that the cutting line A-A of Fig. 3 is formed Face schematic diagram;
Fig. 9 is that amplification of the utility model third embodiment hot wind electric machine in the sealing element position of Fig. 8 is shown It is intended to;
Figure 10 is the schematic side view of the four, the 5th embodiment food processor of the utility model.
Description of symbols:
1a- motor body;1a1- pregroove marks;1b- motor shaft;2- mounting plate;2a- third axis hole;3- sealing element;3a- is rigid Property casing;3b- flexible gaskets;3c- flange seat;4- outer box shell;4a- first shaft hole;The inboard 5- lid;The second axis hole of 5a-; 5b- chimb;5c- positioning ring;6- fan blade;7- heating tube;8a- hot wind electric machine;8b- chamber;8c-.
Specific embodiment
With reference to the accompanying drawings of the specification, the utility model is described in further detail.It is schematically simple in attached drawing Change shows sealing structure etc..
Embodiment one
The first embodiment of the utility model provides a kind of sealing structure, referring to figs. 1 to 5, the sealing knot Structure is set at motor shaft 1b, comprising: the inboard lid for being provided with the outer box shell 4 of first shaft hole 4a, being provided with the second axis hole 5a Body 5, motor shaft 1b are stretched out from motor body 1a, sequentially pass through first shaft hole 4a and the second axis hole 5a.
In addition, sealing structure can also include the mounting plate 2 for installing motor, third axis hole is provided on mounting plate 2 2a.When being provided with third axis hole 2a, the motor shaft 1b of motor is pierced by from motor body 1a, sequentially pass through third axis hole 2a, First shaft hole 4a and the second axis hole 5a.
Set motor mounting plate 2 is capable of fixing motor installation, prevents motor oscillating, and then is the sealing of sealing element 3 Performance provides safeguard.Certainly, it is not provided with the mounting plate 2 of motor, and motor is directly anchored on outer box shell 4, it also being capable of base This meets the technical purpose of the utility model.
The sealing structure of present embodiment further includes the sealing element 3 of wound motor axis 1a setting, sealing element 3 and motor body 1a stretches out a side end face of motor shaft 1b and inboard lid 5 is tightly connected.
Specifically, in the present embodiment, sealing element 3 is spring-backed quill.The both ends of spring-backed quill are covered with inboard respectively Body 5 and motor body 1a are in sealing contact.Good sealing can be realized by the compressive deformation of spring-backed quill.Spring-backed quill can be with It is made of rubber ring, especially high-temperature resistant rubber circle.
Spring-backed quill can be contacted with other components by extruding to be fixed, and can also be cohered by high temperature adhesive glue Contact is to obtain better fixed effect.
It is shown in Figure 5, towards the one of motor body 1a on circumferencial direction of the inboard lid 5 along the second axis hole 5a Side is matchingly formed with chimb 5b with sealing element 3, and one end inner circumferential and the chimb 5b of sealing element 3 match.Chimb 5b is set Sealing element 3 can be accurately positioned during installation, it is ensured that the matching requirements of sealing element 3 in production technology.And then such as the present embodiment In, it is positioned by chimb 5b, it can be ensured that as the spring-backed quill inside circumference of sealing element 3 and the spacing of motor shaft 1b, prevent Only sealing element 3 is contacted with motor shaft 1b, ensures that sealing element 3 will not rub with motor shaft 1b while improving the assembly efficiency And influence sealing performance.
It is shown in Figure 4 after the sequence anticipated according to Fig.2, successively assembles sealing structure, at the second axis hole 5a It will be sealed by motor body 1a end face, inboard lid 5 and sealing element 3 and to be formed a local space, the local space is except logical It crosses the second axis hole 5a to communicate with outside outside, be not connected to other exterior spaces, not will form the dynamic access of flow of steam at high temperature.Therefore For compared with the prior art, the utility model can improve the sealing performance of sealing structure significantly.
According to Fig. 4, Fig. 5, biggish gap can be reserved with completely between sealing element 3 and motor shaft 1b.Due to Therebetween without tight cooperation, therefore manufacture and assembly cost can be reduced significantly.And by reserved gap energy Generated friction between motor shaft 1b and sealing element 3 is enough prevented, therefore noise can be reduced significantly.
In conclusion in terms of existing technologies, the utility model connects motor body 1a and inner by sealing element 3 Side cover body 5 completely cuts off the internal environment within inboard lid 5 and the external environment except sealing element 3.Due to not needing Accurately cooperate with the motor shaft 1b for not stopping rotation, therefore low in cost, does not generate noise, be easily installed, and be capable of providing Better seal effect.
Embodiment two
The second embodiment of the utility model provides a kind of sealing structure, second embodiment and first embodiment It is essentially identical, the difference is that, in the first embodiment of the utility model, sealing element 3 is spring-backed quill;And in this reality With in novel second embodiment, referring to shown in Fig. 6, Fig. 7, sealing element 3 includes rigid casing 3a and two sealing rings.
The both ends of rigid casing 3a pass through two sealing rings respectively and inboard lid 5 and motor body 1a are in sealing contact.
By the combination of rigid casing 3a and sealing ring, the mechanical strength of sealing element 3 can be improved, reduce to the resistance to of casing High temperature demands prolong the service life.
Wherein, rigid casing 3a can be metal tube, and used metal can be using copper, iron, aluminium or alloy etc..
In the present embodiment, sealing ring can there are many selections.In order to realize better seal, in two sealing rings extremely Rare one is flexible gaskets 3b.Good guarantee can be played to sealing effect by flexible gaskets 3b.
It is noted that flexible gaskets 3b can be plain washer, be also possible to it is as shown in Figure 7, on the surface of washer It is formed with and is matched with rigid casing 3a so that the cross section of washer is formed as the slot of U-shaped.When being provided with slot, rigid casing Polarization of the 3a and flexible gaskets 3b in assembly is more preferable, and the sealing performance of flexible gaskets 3b is relatively more preferable.Flexible gaskets 3b's Material then can choose high temperature waterproof sponge or rubber etc..
And one in two sealing rings can be the flange seat 3c being mounted on rigid casing 3a, another is flexible pad Enclose 3b.The setting position of rigid casing 3a and flexible gaskets 3b can be with unrestricted choice.
In the present embodiment, rigid casing 3a is connected on inboard lid 5 by flange seat 3c, and passes through flexible gaskets 3b is connected with motor body 1a.
Wherein, flange seat 3c can by screw, weld or rivet and be fixed on lid, the sealing ring of the other end is (flexible Washer 3b) it can then be sealed using squeezing contact or cohering contact.Vacuum grease can also be coated in sealing position.
Since in food processor, there is a large amount of high-temperature steam in the side inside inboard lid 5, therefore temperature is higher, And in motor side, then because distance high-temperature steam has certain distance, and promising guarantee motor operating temperature can be set Corresponding cooling provision (not shown), so the temperature of motor body 1a is lower.Flange is used in the side contacted with inboard lid 5 Seat 3c sealing, and side contact with motor body 1a using flexible gaskets 3b seal when, can guarantee sealing performance it is same When, avoid influence of the high temperature to flexible gaskets 3b material at high temperature durability.
Therefore using flange seat 3c and flexible gaskets 3b cooperation can be significant reduce to flexible gaskets 3b in high temperature resistant The material performance requirement of aspect, while flexible gaskets 3b aging and leakage for being formed under high temperature action can be also prevented, therefore The service life of sealing element 3 can preferably be extended.
Embodiment three
The third embodiment of the utility model provides a kind of sealing structure, and third embodiment is first or second reality The further improvement for applying mode, mainly thes improvement is that, in the third embodiment of the utility model, referring to Fig. 8, Fig. 9 It is shown, in inboard lid 5 towards the side of motor body 1a, it is formed with the positioning to match with the periphery of one end of sealing element 3 Ring 5c, and the raised 5b to match with the inner circumferential of one end of sealing element 3.
Wherein, positioning ring 5c can be and the integrally formed side protrusion towards motor body 1a of inboard lid 5 Structure.It can certainly be the annular construction member being additionally assemblied on inboard lid 5.The material of positioning ring 5c is also possible to metal , to obtain better high-temperature resistant result.
It is noted that the shape of positioning ring 5c not only can be annular, being also possible to cross section is regular polygon Construction, as long as positioning ring 5c shape can be mutually matched with the end shape of sealing element 3 can substantially meet skill of the invention Art purpose.Moreover, positioning ring 5c may not be complete round or regular polygon, but intermittent on inboard lid 5 Local dot bulge, or the arcuate structure of part, as long as can match with one end periphery of sealing element 3.
The raised 5b to match with the inner circumferential of one end of sealing element 3 can be side at the axis hole by bending inboard lid 5 Edge is realized, is also possible to suppress the integrally formed protrusion of inboard lid 5.
Positioning ring 5c and protrusion 5b is set by the side in sealing contact with sealing element 3 in inboard lid 5, convenient for dress The positioning of timing sealing element 3, and can ensure the gap of sealing element 3 Yu motor shaft 1b, it is mentioned while guaranteeing sealing performance High assembly efficiency.
In addition to this, similar, it is shown in Figure 9, it in the present embodiment, can also be pre- in the end face of motor body 1a It is machined with the pregroove marks 1a1 for being embedded in positioning ring 5c.Setting pregroove marks 1a1 can also significantly reduce assembly difficulty, promote dress The yield and efficiency matched.
Embodiment four
4th embodiment of the utility model provides a kind of hot wind electric machine 8a, referring to Fig. 1 to Fig. 5, Tu10Suo Show, including motor, fan blade 6, heating tube 7 and first into third embodiment sealing knot mentioned by any one embodiment Structure.Wherein, motor has motor body 1a and motor shaft 1b.Fan blade 6 is socketed on motor shaft 1b.Heating tube 7 is around fan blade 6 Peripheral direction is laid with.Sealing structure is between fan blade 6 and motor body 1a.
Wherein, motor can be synchronous motor, asynchronous machine, be also possible to direct current generator etc..Heating tube 7 can basis Size, power, specification of food cooking machine etc. need to come design specification and shape.
In terms of existing technologies, hot wind electric machine 8a provided by the utility model, connects by sealing element 3 Motor body 1a and inboard lid 5, carry out the internal environment within inboard lid 5 and the external environment except sealing element 3 Isolation.So that the high-temperature steam within inboard lid 5 will not be leaked into other than sealing element 3 and be caused to zero near motor and motor The influence of part.Simultaneously as not needing accurately to cooperate with the motor shaft 1b for not stopping rotation, therefore low in cost, do not generate Noise is easily installed, and is capable of providing better seal effect.
Embodiment five
5th embodiment of the utility model provides a kind of food cooking machine, including mentioned by the 4th embodiment Hot wind electric machine 8a.
Shown in Figure 10, food cooking machine includes the chamber 8b when arranging food full of high-temperature steam, can be opened The door 8c of chamber 8b is closed, and the hot wind electric machine 8a as described in the 4th embodiment is comprising in hot wind motor Inboard lid 5 (being not shown in Figure 10) in device 8a constitutes a wall surface of the chamber 8b opposed with door 8c.
Using the food cooking machine of present embodiment, the high-temperature steam foundation design requirement in chamber 8b can be made, It is discharged in the channel preset, therefore high-temperature steam can be effectively prevented to the inboard lid 5 of food cooking machine (in Figure 10 not Show) on the outside of hot wind motor and its neighbouring electronic component damage.
In terms of existing technologies, the utility model connects motor body 1a and inboard lid 5 by sealing element 3, Sealing isolation has been carried out to the chamber 8b internal environment within inboard lid 5 and the external environment except sealing element 3.Meanwhile by It is therefore low in cost in not needing accurately to cooperate with the motor shaft 1b for not stopping rotation, noise is not generated, is easily installed, and It is capable of providing better seal effect.
It will be understood by those skilled in the art that in above-mentioned each embodiment, in order to keep reader more preferably geographical It solves the application and proposes many technical details.But even if without these technical details and based on the respective embodiments described above Various changes and modifications can also realize each claim of the application technical solution claimed substantially.Therefore, in reality In, can to above embodiment, various changes can be made in the form and details, without departing from the spirit of the utility model And range.

Claims (10)

1. a kind of sealing structure, is set at motor shaft, comprising: be provided with the outer box shell of first shaft hole, be provided with the second axis The inboard lid in hole,
The motor shaft is stretched out from motor body, sequentially passes through the first shaft hole and second axis hole;
It is characterized in that, the sealing structure further include around the motor shaft setting sealing element, the sealing element with it is described Motor body stretches out the end face of motor shaft side and the inboard lid is tightly connected.
2. sealing structure according to claim 1, which is characterized in that the sealing element includes: spring-backed quill;
The both ends of the spring-backed quill are in sealing contact with the inboard lid and the motor body respectively.
3. sealing structure according to claim 1, which is characterized in that the sealing element includes rigid casing and two sealings Ring;
It is close that the both ends of the rigid casing pass through two sealing rings and the inboard lid and the motor body respectively Sealing-in touching.
4. sealing structure according to claim 3, which is characterized in that at least one in described two sealing rings is flexibility Washer.
5. sealing structure according to claim 4, which is characterized in that one in described two sealing rings is is mounted on State the flange seat on rigid casing;
Wherein, the rigid casing is connected on the inboard lid by the flange seat, and by the flexible gaskets with The motor body is connected.
6. sealing structure according to claim 1, which is characterized in that in the inboard lid along second axis hole Chimb, one end inner circumferential of the sealing element and the chimb phase are formed with towards the side of the motor body on circumferencial direction Match.
7. sealing structure according to claim 1 or 6, which is characterized in that in the inboard lid towards the motor sheet The side of body is formed with the positioning ring to match with the periphery of one end of the sealing element.
8. sealing structure according to claim 1, which is characterized in that the sealing structure further includes for installing the electricity The mounting plate of machine is provided with third axis hole on the mounting plate;
The motor shaft of the motor is pierced by from motor body, sequentially passes through the third axis hole, the first shaft hole and described Second axis hole.
9. a kind of hot wind electric machine, which is characterized in that including appointing in motor, fan blade, heating tube and such as claim 1 to 8 Sealing structure described in meaning one;
The motor has motor body and motor shaft;
The fan blade is socketed on the motor shaft;
The heating tube is laid with around the peripheral direction of the fan blade;
The sealing structure is between the fan blade and the motor body.
10. a kind of food cooking machine, it is characterised in that: be provided with cavity and be mounted on the cavity such as claim 9 institute The hot wind electric machine stated.
CN201721269177.7U 2017-09-29 2017-09-29 Sealing structure, hot wind electric machine and food cooking machine Active CN208286911U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721269177.7U CN208286911U (en) 2017-09-29 2017-09-29 Sealing structure, hot wind electric machine and food cooking machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721269177.7U CN208286911U (en) 2017-09-29 2017-09-29 Sealing structure, hot wind electric machine and food cooking machine

Publications (1)

Publication Number Publication Date
CN208286911U true CN208286911U (en) 2018-12-28

Family

ID=64696594

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721269177.7U Active CN208286911U (en) 2017-09-29 2017-09-29 Sealing structure, hot wind electric machine and food cooking machine

Country Status (1)

Country Link
CN (1) CN208286911U (en)

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TR01 Transfer of patent right

Effective date of registration: 20240308

Address after: No. 369 Chenggong Road, Jiaxing Economic and Technological Development Zone, Zhejiang Province, 314001

Patentee after: Panasonic Kitchen Appliances Technology (Jiaxing) Co.,Ltd.

Country or region after: China

Address before: 201203 No. 898 East Dragon Road, Shanghai, Pudong New Area

Patentee before: PANASONIC APPLIANCES MICROWAVE OVEN (SHANGHAI) CHINA Co.,Ltd.

Country or region before: China