CN102995367A

CN102995367A - Household appliance

Info

Publication number: CN102995367A
Application number: CN2011102732049A
Authority: CN
Inventors: 常莹; 李继豪; 高杰; 欧先巧
Original assignee: BSH Electrical Appliances Jiangsu Co Ltd
Current assignee: BSH Electrical Appliances Jiangsu Co Ltd
Priority date: 2011-09-09
Filing date: 2011-09-09
Publication date: 2013-03-27
Also published as: WO2013034515A1

Abstract

The invention discloses a household appliance. The household appliance comprises a shell, an air duct, an air blower and a heating device, wherein the shell comprises a chamber, the air duct is connected to the chamber, the air blower is arranged in the air duct and is used for pushing air from the air duct to flow into the chamber, and the heating device is arranged on the air blower and is used for heating the air pushed by the air blower. The heating device is arranged on the air blower, thus the temperature of hot air is more uniform than that of the hot air when the heating device is independently arranged at the downstream of the air blower, the space can be also saved, and the structure of the household appliance can be more compact.

Description

Household electrical appliance

Technical field

The present invention relates to a kind of household electrical appliance, it comprises the shell that contains chamber, is connected to the air channel of chamber and is placed in the air blast that is used for promoting to flow into from the air in air channel chamber in the air channel.

Background technology

A kind of known household electrical appliance, the household electrical appliance that particularly have functions/drying, the cloth drying machine shown in Fig. 11 for example generally includes shell 2, the air channel 4 that is connected to chamber 3 of containing chamber 3, is placed in the air 6 that is used in the air channel 4 promoting from air channel 4 and flows into the air blast 5 of chambers 3 and be placed in separately air blast 5 downstreams and be used for heating by air blast 5 promote the to flow through heater 7 of air 6 herein.

Because heater 7 is placed in downstream and the close chamber 3 of air blast 5, therefore when air 6 is flowed through regional that heater 7 settles, part air near heater 7 will be subject to abundant heating, but other part air of too close heater 7 will not be subject to heating not too fully, and this can cause occurring the different air layer of temperature.The air layer that temperature is different will flow into rapidly chamber 3 before fully mixing.The air of different temperatures can damage clothing, because the temperature of certain a part of air is higher than expection.And air channel 4 should be heater 7 and reserves accommodation space, and therefore should be air channel 4 provides exceptional space.Moreover, heater be to be installed, should be in the air channel 4 make the opening (not shown)s, this can cause extra manufacturing cost and potential hot-air to leak.

Summary of the invention

Therefore, one of purpose of the present invention is to address the above problem, but and provides the low-cost compact household electrical appliance of homogeneous heating air.

Given this purpose, the invention provides a kind of improved household electrical appliance, it comprises shell, the air channel that is connected to chamber of containing chamber, be positioned at the air channel is used for promoting air from the air channel and flows into the air blast of chamber and be placed in the heater that is used for the air that heating promotes by air blast on the air blast.

Compared with prior art, because heater is placed on the air blast, rather than is placed in separately on the air channel in air blast downstream, so air blast is the heat of stirring air, and therefore makes air themperature enough even.And, because heater is not arranged separately on the air channel, therefore can the constriction air channel, this can save cost, and makes home appliance structure more compact.Moreover, owing to need not to make opening for heater is installed in the air channel, therefore can not increase extra manufacturing cost, and avoid potential hot-air to leak from opening.

Preferably, air blast comprises fixing part and rotating part, and heater is placed on the rotating part.By this class formation, heater can be mobile with rotating part, this means that not only air flows, and heater also is mobile, and this can allow air mix more equably.

Preferably, air blast comprises motor and a plurality of impeller by the motor rotary actuation, and heater is placed in the impeller at least one.Because the heater that most of air by impeller-driven, therefore is placed on the impeller will be to the best heating function of most of air performance.And hot-air also will be stirred by impeller, and this can make the temperature of hot-air even.

Preferably, heater comprises a plurality of heating units, and it is placed on the impeller with the peripheral distance that substantially equates each other.The heating unit of equidistant arrangement also will make the temperature of hot-air even.

Preferably, at least one pair of electric terminal that is connected to power supply is placed on the fixing part, at least one pair of splicing ear is placed on the rotating part, and can be electrically connected to electric terminal when being in contact with it in rotating part rotation process, and wherein heater is electrically connected to splicing ear.

Preferably, electric terminal is carbon brush, and splicing ear is the terminal of commutator.

Preferably, air blast comprises fixing part and rotating part, and described heater is placed on the described fixing part.

Preferably, heater is fixed on the air blast support.

Preferably, thus comprise the control device of the temperature of the supply of electric power control hot-air that can operate to control heater.

Preferably, heater energising when air blast starts or after starting, this also will make the temperature of hot-air even.

Preferably, chamber comprises the rotating cylinder for accommodating laundry.

Description of drawings

For understanding better the present invention, hereinafter the concrete preferred embodiment shown in reference to the accompanying drawings only provide for explanation detailed description; Therefore, these preferred embodiments do not limit the scope of the invention.These preferred embodiments are take dryer as example, but other household electrical appliance are also applicable, therefore also in protection scope of the present invention.Among the figure,

Fig. 1 is the schematic diagram according to the dryer of prior art;

Fig. 2 is the schematic diagram of dryer according to a particular embodiment of the invention;

Fig. 3 is the schematic diagram of the first embodiment that the air blast of heater is installed; And

Fig. 4 is the schematic diagram of the second embodiment that the air blast of heater is installed.

The specific embodiment

As shown in Figure 2, dryer 10 comprises the shell 12 that wherein contains chamber 14.Chamber 14 comprises by motor 18 rotary actuations and can operate cylinder 16 with accommodating laundry 17, and the bucket 20 that contains cylinder 16.Air channel 22 comprises the first terminal 24a and the second terminal 24b that is connected to respectively bucket.Air blast 26,26 ' is placed in the air channel 22, to promote flowing into chamber 14 from the air 28 in air channel 22.Heater 30,30 ' is placed in air blast 26, on 26 ', with heating by air blast 26, the 26 ' air 28 that promotes.Control device 32 is placed in the shell 12, and is connected to air blast 26, and 26 ' and heater 30,30 ', so that it is controlled.

With further reference to Fig. 3, air blast 26 comprises the support 34 that relatively is fixed to air channel 22, be installed in motor 36 on the support 34 and a plurality of rotating shaft 40 that is installed in motor 36 and the impeller 38 that is driven by it.

Motor 36 comprises a pair of carbon brush 42, it is fixed on the motor 36 and is connected to the power supply (not shown), and comprising commutator 44, it is installed in the rotating shaft 40 of motor 36, and has the terminal 46 that can contact so receive by carbon brush 42 electric power when rotating with fixing carbon brush 42.

Heater 30 comprises a plurality of heating units 31, and it is placed on the impeller 38 with the peripheral distance D that substantially equates each other.Heating unit 31 is electrically connected to commutator 44.When commutator 44 rotates, its terminal 46 contact carbon brush 42, and from power supply reception electric power.Then, electric power is sent to heating unit 31, and it heats the air 28 of flowing through subsequently.

Control device 32 is controlled the supply of electric power of heater 30 in a known way, and (for example) is with the temperature of control hot-air 28.

In addition, heater 30 is switched under the control of control device 32 when air blast 26 starts or after starting.

In another embodiment as shown in Figure 4, air blast 26 ' comprises the support 34 ' that relatively is fixed to air channel 22, the impeller 38 ' that is installed in the motor 36 ' on the support 34 ' and driven by motor 36 '.Wherein heater 30 ' is installed on the support 34 '.Heater 30 ' has two terminals 48, is connected with the power supply (not shown), and the control of controlled device 32.

Above-mentioned and diagram specific embodiment is only for illustrating the present invention, but do not relate to all aspects of the present invention.By one of ordinary skill in the art of the present invention make without prejudice to any type of variant of basic fundamental thinking of the present invention all within protection scope of the present invention.

Reference number

1 cloth drying machine (prior art)

2 shells (prior art)

3 chambers (prior art)

4 air channels (prior art)

5 air blasts (prior art)

6 air (prior art)

7 heaters (prior art)

10 dryers

12 shells

14 chambers

16 cylinders

17 clothings

18 motor

20 barrels

22 air channels

First end in 24a air channel

Second end in 24b air channel

26 air blasts (the first embodiment)

26 ' air blast (the second embodiment)

28 air

30 heaters (the first embodiment)

30 ' heater (the second embodiment)

31 heating units

32 control device

34 supports (the first embodiment)

34 ' support (the second embodiment)

36 motor (the first embodiment)

36 ' motor (the second embodiment)

38 impellers (the first embodiment)

38 ' impeller (the second embodiment)

40 rotating shafts

42 carbon brush

44 commutators

The terminal of 46 commutators

The terminal of 48 heaters.

Claims

1. household electrical appliance, comprise shell (12), the air channel (22) that is connected to described chamber of containing chamber (14) and be placed in the air blast (26 that is used for promoting to flow into from the air (28) in described air channel described chamber in the described air channel, 26 '), it is characterized in that, heater (30,30 ') is placed in and is used for the described air that heating is promoted by described air blast on the described air blast.

2. household electrical appliance according to claim 1, it is characterized in that, described air blast comprises fixing part (34,36) and rotating part (38,40,44), and described heater (30) is placed on the described rotating part (38).

3. household electrical appliance according to claim 2, it is characterized in that, described air blast (26) comprises motor (36) and a plurality of impeller by described motor rotary actuation (38), and described heater is placed in the described impeller (38) at least one.

4. household electrical appliance according to claim 3 is characterized in that, described heater comprises a plurality of heating units (31), and described a plurality of heating units (31) are placed on the described impeller with the peripheral distance (D) that substantially equates each other.

5. household electrical appliance according to claim 2, it is characterized in that, at least one pair of electric terminal (42) that is connected to power supply is placed on the described fixing part (34,36), at least one pair of splicing ear (46) is placed on the described rotating part (38,40,44), and can be electrically connected to described electric terminal in the rotation process of described rotating part when being in contact with it, wherein said heater is electrically connected to described splicing ear.

6. household electrical appliance according to claim 5 is characterized in that, described electric terminal (42) is carbon brush, and described splicing ear (46) is the terminal of commutator (44).

7. household electrical appliance according to claim 1, it is characterized in that: described air blast comprises fixing part (34 ', 36 ') and rotating part (38 '), and described heater (30 ') is placed on the described fixing part (34 ').

8. household electrical appliance according to claim 7, it is characterized in that: described heater (30 ') is fixed on the air blast support (34 ').

9. household electrical appliance according to claim 1 is characterized in that, comprise can operate to control described heater (30,30 ') thus supply of electric power control the control device (32) of the temperature of described hot-air (28).

10. household electrical appliance according to claim 1 is characterized in that, described heater (30,30 ') energising when described air blast (26,36 ') starts or after starting.

11., it is characterized in that described chamber (14) comprises the rotating cylinder (16) for accommodating laundry (17) according to the described household electrical appliance of arbitrary claim in the aforementioned claim.