ES2385767B1 - Blender as well as heat pump and domestic appliance with such a blender. - Google Patents

Abstract

Blender (2, 56, 56?), Especially a heat pump, with a cooling agent conduit (6), through which a cooling agent is conducible, characterized in that the same cooling agent conduit (6) , or an essential area of it, is configured as a cooling rib. Heat pump, with such a blender. Domestic appliance, especially clothes dryer by condensation, refrigerator, refrigerator / refrigerator or furniture cabinet, with such a blender.

Description

LlCUADOR As well as HEAT PUMP AND DOMESTIC APPLIANCE WITH A SIZER OF SUCH TYPE

TECHNICAL FIELD

The present invention relates to a blender (condenser), as well as a heat pump and a household appliance with such a blender.

STATE OF THE TECHNIQUE

Blenders, as used for example in condensation clothes dryers, refrigerators, refrigerators / refrigerators or refrigerated furniture, have a conduit tube, in which a cooling agent flows. The duct tube or coolant duct is provided on its outer side with cooling ribs, through which the air is moved by a cooling air fan. The cooling ribs are formed in the normality of a large number of sheets of aluminum sheet, which must be additionally fixed on the outer side of the conduit tube or the cooling agent conduit, which takes place, for example, by means of strong welding. The manufacture of such a blender with cooling ribs is therefore very complicated and expensive. Due to its filigree construction, the thin sheets of the cooling ribs are also easy to damage and quickly fill with dust or other impurities.

From DE 44 09 607 C2 a blender of the type described above is known.

This document also reveals a clothes dryer by condensation with such a blender. The condensation clothes dryer has a closed processing air circuit, in which drying air is supplied by a fan, through an air inlet of a drying chamber, it is evacuable from it through an outlet of air, to be dehumidified in a heat exchanger and then again heated by means of a heating device. This apparatus is further provided with a heat pump, with a cooling agent circuit, in which cooling agent circulates in a duct system, to which an evaporator, a compressor, the blender and a throttle are connected, where the exchanger of heat contains the evaporator and the device

arranged cooling ribs, in a first section of the system

conduits arranged between the compressor and the blender and / or in a second section of the

duct system arranged between the blender and the throttle, to which they

5

movable cooling air by means of a cooling air fan is applicable.

In other words: in a part of the duct system, that is, in a tube of

duct, cooling ribs are provided in a mode, as it was already

explained above in relation to the DE 44 09 607 C2 blender. This has

the disadvantage that the manufacture of a section of the duct system with

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Refrigeration ribs of this type is on the other hand very complicated and expensive.

In addition to this the thin sheets are easily damaged and filled quickly

with dust

REPRESENTATION OF THE INVENTION

The invention is based on the task or the technical problem of

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achieve a blender, which, by comparison, is manufactured in a simple way,

it gets very dirty and in spite of everything it is effectively coolant and has a good

liquidity capacity; a heat pump must also be made available

as well as a household appliance, especially a clothes dryer for

condensation, a refrigerator, a refrigerator / refrigerator or a piece of furniture,

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with such a blender.

This task is solved according to a first aspect by means of a blender

in accordance with the invention with the features of claim 1.

This blender, especially a heat pump, with an agent duct

refrigerant, through which a cooling agent is conducible, is characterized

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because, the same cooling agent duct (or an essential area of it) is

configured as cooling rib.

The blender in accordance with the invention is preferably configured

as an air-cooled blender, which is cooled by e.g. by means of a fan.

In a different way than it is in the case of the state of the art, the solution in

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In accordance with the invention, no coolant is used in the conduit

separate cooling ribs or additional cooling ribs.

Much more, the same coolant duct (or an essential area of it)

It is configured as a cooling rib, that is, as an element

elongated, wide, flat, especially compared to a round tube, or vice versa.

In this way the cooling agent duct takes over a function

double advantageous, since he can take over without additional elements

both the function of the cooling agent duct and also a transport

5

improved heat The construction of the cooling agent duct and the blender

It is done for this reason with easier relevance. The agent duct

coolant of the blender in accordance with the invention configured as a rib

of cooling, it is for this reason very robust and is not so easy to damage. Even

when this cooling agent duct forms a complete system of

10

cooling ribs, this construction does not fill so quickly with dust or other

impurities Although in the case of the blender in accordance with the invention the duct

of cooling agent which is configured as a cooling rib

it has no total surface area as large as in the case of a conventional blender

with conventional cooling ribs, it has been proven that the blender in

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In accordance with the invention, however, it is more effectively coolant and

it also has, in the case of higher temperatures of more than 30 ° C, a good

liquidity capacity, especially when the blender is cooled by a

cooling air fan. The blender in accordance with the invention is

especially suitable for use in heat pumps, such as them

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are used for ex. in clothes dryers by condensation.

The task based on the invention is solved according to a second

aspect, by means of a heat pump in accordance with the invention with the

characteristics of claim 12. This heat pump is provided with a

blender according to one of claims 1 to 11. This blender can, in

25

Special, be used as an additional blender to a main blender. With the pump

heat in accordance with the invention are essentially the same

advantages, which were explained before in relation to the blender in

conformance with the invention; in addition, a good pump capacity is attainable

of heat also in the case of temperatures over 30 ° C.

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The task based on the invention is solved according to a third

aspect by means of a domestic appliance in accordance with the invention with the

characteristics of claim 13. This household appliance, especially a

clothes dryer by condensation, a refrigerator, a refrigerator / refrigerator

refrigerator, is provided with a blender according to one of the

35

claims 1 to 11. With the household appliance in accordance with the invention

essentially the same advantages are attainable, which have already been explained

before in relation to the blender in accordance with the invention.

Other advantageous and preferred configuration features of the blender in accordance with the invention as well as the domestic appliance in compliance

5 with the invention are subject to the corresponding respective dependent claims, which find their support in the following description and drawings.

Preferred embodiments of the invention with additional configuration details and other advantages are described and explained in more detail below with reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

Sample:

Fig. 1 a schematic side view of a blender in accordance with the invention according to a first embodiment; Fig. 2 an enlarged, schematic sectional view along line 11-11 in Fig. 1;

Fig. 3 a schematic exploded side view of an essential part of a blender in accordance with the invention according to a second embodiment;

Fig. 4 a schematic sectional view through an essential partial zone of a blender in accordance with the invention according to a third embodiment;

Fig. 5 a schematic perspective exploded view of an intersection zone of a coolant duct of a blender in accordance with the invention according to a fourth form of

realization; Fig. 6 a schematic perspective view of the intersection zone of Fig. 5 in an assembled state; Fig. 7 a schematic perspective view of an essential partial zone of a blender in accordance with the invention according to a fifth embodiment;

Fig. 8 a schematic perspective view of an essential partial area of

a blender in accordance with the invention according to a sixth

embodiment; Y

Fig. 9 a schematic block diagram of an essential partial zone of

5

a clothes dryer by condensation in accordance with the

invention.

REPRESENTATION OF PREFERRED EXAMPLES

In the following description and in the figures, they are characterized, for the avoided

of repetitions, equal parts and components, also with the same sign of

10

reference, as long as it is not necessary or does not make any other sense

differentiation.

The blender 2 in accordance with the invention shown in Fig. 1 in a view

schematic side according to a first embodiment has a conduit

of cooling agent 6 arranged in the form of a meander held in a fastener 4, to

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through which a cooling agent is conducible. The cooling agent inlet

and the coolant outlet of the blender 2 is characterized by the symbols

reference 8 and 10. The flow direction of the cooling agent is indicated by

middle of arrows The same cooling agent duct 6 (or an area

essential of this) is configured as a cooling rib. This is accomplished

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in the present example by means of which the cooling agent conduit 6 is

configured in the form of a flattened conduit tube 12, as can be recognized

in Fig. 2, which represents an enlarged sectional view, along line 11-11

in Fig. 1. The width to length ratio (SIL) of this flattened conduit tube 12

it is preferably in a range of 1: 3 to 1: 30, especially 1: 5 to 1: 20, in

25

Special 1: 7 to 1: 15. In the present example it is approx. 1: 8 Duct tube

flattened can present next to that variant shown in Fig. 2 however

any other appropriate form of flat cut, wing type, or rib type. The tube of

flattened duct can also have one or more internal flow channels, for

the cooling agent

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As can be recognized in Fig. 1, the cooling agent duct 6

configured as a cooling rib has a multitude of areas of

conduit 6a to 6n located at a distance next to each other, which

together they form a system of cooling ribs, with several ribs

of individual cooling neighbors, formed, respectively, of another section

of the cooling agent duct 6. These duct zones 6a through 6n located

side by side, they are manufactured by deformation, that is, in this case,

manufactured by bending the cooling agent duct 6 in the meander shape.

If the blender 2 in accordance with the invention is cooled during the

5

operation, e.g. by means of a cooling air fan, which, in the case

of the arrangement of the blender shown in Fig. 1, then takes place with

preference in a direction that runs perpendicular to the focal plane, thereby the

cooling air flow S generated by the fan rubs in the longitudinal direction

respectively to the left and right passing along a respective tube

10

of flattened duct 12, as sketched in Fig. 2, or passing

respectively between two conduit pipes flattened 12 neighbors. Under the

large outer surface of the flattened conduit tube 12 in this case a

effective heat transport and thereby effective cooling and liquefaction of

coolant inside the coolant duct 6 configured

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as cooling rib.

Fig. 3 shows a schematic exploded side view of a part

essential of a blender in accordance with the invention according to a second

embodiment. This variant resembles that of Fig. 1, however the

cooling agent duct 6 configured as cooling rib has

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several straight sections 14, individual, which are arranged one next to the

another at a distance, and respectively connected to each other by means of pieces of

connection 16, e.g. soldered with tin or by welding. The connection pieces 16

they are, again, sections of flattened, U-shaped tubes, which adapt to

the ends of the straight sections 14. The connection pieces 16 are not

25

limited to this U shape, but they can also have other appropriate shapes.

Fig. 4 shows a schematic sectional view through a partial zone

essential of a blender in accordance with the invention according to a third

embodiment. Also in the case of this variant the agent duct

Refrigerant 6 configured as a cooling rib has several sections

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Straight 14, individual, which are arranged side by side. The

sections 14 are however connected to each other by means of two (or several),

collector sections 18 tube type opposite each other, e.g. by welding or welding

with tin. In this case a collecting section 18 is respectively assigned to

one end of the individual section 14 and the other collecting section 18 respectively

at the other end of the individual section 14. In this way the blender 2, on the other hand,

receives a multitude of duct areas located at a distance one next to the

other, which together form a system of cooling ribs with

several neighboring individual cooling ribs, formed respectively of

5

another section of the cooling agent duct 6. As sketched in more

in Fig. 4, the collecting sections 18 have internal separation elements 20

(only one is shown in the figure), which serve as a separation and device for

sealing of the individual partial zones of the collecting sections 18 and

the coolant flow circuit changes direction respectively of a

10

side to the other side of the blender 2. In the present example they form respectively

two neighboring sections 14, 14 a parallel flow circuit. Basically they can without

However, individual flow circuits or more than two circuits of

parallel flow.

Fig. 5 shows a schematic perspective exploded view of a

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intersection zone of a cooling agent duct 6 configured as

cooling rib, of a blender in accordance with the invention, of

according to a fourth embodiment. And Fig. 6 shows a view in

schematic perspective of this intersection zone in an assembled state. In

the case of this intersection zone is preferably that area of the

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cooling agent duct 6, which has the cooling agent inlet and

the cooling agent outlet and are connected to the external components of a

cooling agent circuit of a higher order apparatus, e.g. of a

clothes dryer by condensation, directly or indirectly through

intermediate ducts

25

In these intersection zones, that is at its ends, the agent duct

Refrigerant 6 configured as cooling rib is equipped

respectively with an adaptation element 22, which is provided with a) a

first wide connection zone, flattened 22a, which is assigned to the conduit of

cooling agent 6, and b) a second, and compared to the first zone of

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connection 22a narrow and rounded, or round, connection zone 22b, which

It is assigned to a round 24 connection tube, especially round, by means of

of which the blender is connectable with its cooling agent conduit 6

configured as a cooling rib to an external circuit component of

cooling agent

The adaptation element 22 can, as in the variant according to Fig. 5

And 6, be configured as a separate element, which is joined by eg. through

glued, soldered with tin or by welding, with the respective end of the duct

of coolant of the blender. In this case the wide connection zone,

5

flattened, can for ex. be manufactured by means of plastic deformation of a tube

cylindrical separated. The second zone of narrow, rounded connection can be

a partial non-deformed zone of the same cylindrical tube.

In the same way, however, it is possible to form the adaptation element 22

integrally to the cooling agent duct 6 configured as a rib

10

of refrigeration. This can be manufactured by ex. from a tube originally

round, which is, except its ends, flattened, or flattened and flattened.

Fig. 7 shows a schematic perspective view of a partial zone

essential of a coolant duct 6 of a blender in accordance with the

invention according to a fifth embodiment. In the case of this variant the

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cooling agent duct 6 configured as cooling rib is

made from a multitude of micro-tubes 26 arranged in a row,

located next to each other, which together form an agent duct cut

rib-type refrigerant, stretched, flattened, similar to that of Fig. 2. The

micro-tubes 26, which can for example have an outside diameter of 0.5 to

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approx. 5 mm, are ex. individually joined together by gluing,

tin welding (in Fig. 7 indicated by reference symbol 28) or

by welding, or fixed by means of a fastener in the position shown in Fig. 7.

Although in Fig. 7 only a single row of micro-tubes 26 is shown, in

other embodiments in accordance with the invention the micro-tubes 26

25

they can of course also be arranged in several rows and / or misaligned

each other, where however you have to try to achieve an external contour that

favor a flow, in case the blender is for ex. cooled by

cooling air fan.

Fig. 8 shows a schematic perspective view of a partial zone

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essential of a coolant duct 6 of a blender in accordance with the

invention according to a sixth embodiment. This variant corresponds

broadly to that according to Fig. 7, however the micro-tubes 26

located next to each other are formed integrally in the agent duct

refrigerant 6, for example by extrusion molding of the conduit

coolant 6 in one piece, where at the same time the micro are formed

tubes 26. By means of this extrusion method ducts are especially elaborable

of cooling agent 6 configured as cooling rib with a

Smooth outer surface simply and effectively. The embodiments of

5

according to Fig. 7 and 8 can also be combined.

Especially a heat pump or a household appliance in the form of a

clothes dryer by condensation, from a refrigerator, a refrigerator / fridge or

a refrigerator unit is left to be equipped advantageously with the blender 2 in

in accordance with the invention.

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Fig. 9 shows a schematic block diagram of an area

essential part of a preferred embodiment of a clothes dryer by

condensation 30 in accordance with the invention (then called so

abbreviated dryer 30). The dryer 30 has a closed air circuit of

processing, in which drying air is supplied in an air channel 32

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by a fan 34 through an air inlet 36 of a chamber of

drying 38 (here: a drum) and through an air outlet 40 is again evacuable

this. The evacuated air is dehumidified in a heat exchanger 42 and then

again heated by means of a heating device 44. The dryer 30

It is also equipped with a heat pump, with a cooling agent circuit,

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in which coolant circulates in a duct system 46, to which they are

connected an evaporator 48, a compressor 50, a main blender 52 and a

choke 54. Heat exchanger 42 contains evaporator 48, and the

heating device 44 contains the main blender 52.

For additional cooling of the cooling agent, it is provided

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in addition to the main blender 52 a blender in accordance with the invention, such as

he was described above and characterized with the reference symbol 2, provided

as additional blender 56 and in a first section 46a of the duct system 46

arranged between the main blender 52 and the throttle 54. To the additional blender 56

refrigerant air is applied, which is moved by means of an air fan

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refrigerant 58. The air flow rate of the refrigerant air fan 58 can

be regulated with the help of a control device 60 depending on the

temperature recorded by a sensor 62 and / or the pressure recorded by the sensor of the

cooling agent in the duct system 46.

in addition to this, the additional blender 56 could however also be arranged in a second section 46b of the duct system between the compressor 50 and the main blender 52. This is indicated in Fig. 10 by means of broken lines and the reference symbols 56 'and 58'.

Reference symbols in the claims, description and drawings merely serve the best understanding of the invention and should not limit the scope of protection.

Blender 4

Clamping / Fixing device 6

Coolant duct, configured as rib 6a ... 6n Duct zones 6 8

Coolant Inlet

Coolant outlet 12 Flattened duct tube 14 Straight sections 16 Connection pieces 18 Collector sections

Separation element 22 Adaptation element 22a Wide, flat connection area 22b Narrow, round connection area 24 Splice tube 26 Micro-tubes 28 Tin welding

Condensation Thermal Dryer

Air duct fan

36

Air entrance

38

Drying chamber

Air vent

42

Heat exchanger

44

Heating device

46

Coolant Duct System

48

Evaporator

Compressor

Main blender Estrang u lación

56, 56 '

Additional blender

58, 58 '

Cooling air fan

Control device

62

Sensor

   S

Coolant air flow

Claims (13)

1. Blender (2, 56, 56 '), especially a heat pump, with a cooling agent duct (6), through which a cooling agent is conducible, characterized because, the same cooling agent duct (6), or an essential zone thereof, is configured as a cooling rib. 2. Blender (2, 56, 56 ') according to claim 1, characterized because, The cooling agent duct (6) configured as a cooling rib is designed in the form of a flattened duct tube (12). 3. Blender (2, 56, 56 ') according to one or more of the aforementioned claims, characterized in that, the flattened conduit tube (12) has a long to wide ratio (SIL), which is in a range of 1: 3 to 1: 30, especially 1: 5 to 1: 20, especially 1: 7 to 1: 15. 4. Blender (2, 56, 56 ') according to one or more of the aforementioned claims, characterized in that, the cooling agent conduit (6) configured as a cooling rib is formed of a multitude of micro-tubes (26 ) located side by side, which together form a cross section of the ribbed, extended, ribbed coolant. Blender (2, 56, 56 ') according to one or more of the aforementioned claims, characterized because, The micro-tubes located next to each other are individually connected to each other. 6. Blender (2, 56, 56 ') according to one or more of the claims before mentioned, characterized because, The micro-tubes (26) located next to each other are formed integrally in the cooling agent duct (6) configured as a cooling rib, especially formed through the extrusion of the cooling agent duct (6) integrally in this . 7. Blender (2, 56, 56 ') according to one or more of the aforementioned claims, characterized in that, the refrigerant agent duct (6) configured as a cooling rib has a multitude of duct zones (6a -6n ) located at a distance next to each other, which together form a system of cooling ribs. 8. Blender (2, 56, 56 ') according to one or more of the aforementioned claims, characterized in that, the cooling agent duct (6) configured as a cooling rib is deformed with respect to the multiple duct areas ( 6a -6n) located at a distance next to each other, which together form the system of cooling ribs, especially curved in the form of a meander. 9. Blender (2, 56, 56 ') according to one or more of the aforementioned claims, characterized in that, the cooling agent duct (6) configured as a cooling rib has several individual, separate sections (14), the which are arranged side by side and connected to each other through connecting pieces (16). 10. Blender (2, 56, 56 ') according to one or more of the aforementioned claims, characterized in that, the connection pieces are configured as at least two collecting sections (18), wherein a collecting section (18 ) is assigned respectively to one end of the individual separated sections (14) and the other collecting section (18) is assigned respectively to the other end of the individual separated sections (14), and the individual sections (14) are connected to each other to through the collecting sections (18) And they form a multitude of duct zones (6a -6n) located at a distance next to each other, which together form the system of cooling ribs. 11. Blender (2, 56, 56 ') according to one or more of the aforementioned claims, characterized in that, the cooling agent conduit (6) configured as a cooling rib has at least one end an adaptation element (22), which is provided with a first wide, flattened connection zone (22a), which is assigned to the cooling agent conduit (6), and a second, narrow, rounded connection zone (22b), which is assigned to a rounded splice tube (24), especially round, by means of which the blender (2, 56, 56 ') can be connected to an external component of a refrigerant agent circuit.

12.

Heat pump, with a blender (2, 56, 56 ') according to one of claims 1 to 10 (11).

13.

Household appliance, especially clothes dryer by condensation (30), refrigerator, refrigerator / refrigerator or furniture cabinet, with a blender (2, 56, 56 ') according to one of claims 1 to 10 (11).

14.

Domestic appliance according to claim 13, which is configured as a clothes dryer by condensation (30),

with a closed processing air circuit, in which by means of a fan (34), drying air is supplied through an air inlet (36) to a drying chamber (38), it is evacuable from it through an air outlet (40), is dehumidifiable in a heat exchanger (42) and is then heated again by means of a heating device (44); Y with a heat pumping device with a cooling agent circuit, in which cooling agent circulates in a cooling agent duct system (46), to which an evaporator (48), a compressor (50), a blender are connected main (52) and a throttle (54), wherein the heat exchanger (42) contains the evaporator and the heating device (44) the main blender (52); Y where for cooling the cooling agent It is arranged in a first section (46a) of the cooling agent duct system (46) between the main blender (52) and the strangulation (54) I in a second section (46b) of the cooling agent duct system (46) between the compressor (50) and the main blender (52) the blender (2, 56, 56 ') according to claims 1 to 10 (11 ), to which mobile cooling air of a cooling air fan (58, 58 ') is applicable.