CN111819410B

CN111819410B - Household appliance having a sensor unit arranged on a closure element

Info

Publication number: CN111819410B
Application number: CN201880090779.7A
Authority: CN
Inventors: S·克雷默; T·比朔夫贝尔格; O·拜尔克; R·屈梅尔
Original assignee: BSH Hausgeraete GmbH
Current assignee: BSH Hausgeraete GmbH
Priority date: 2018-03-07
Filing date: 2018-05-15
Publication date: 2023-02-17
Anticipated expiration: 2038-05-15
Also published as: CN111819410A; WO2019170261A1; US20210055044A1; DE102018204911A1

Abstract

The invention relates to a household appliance having a body (2), a closure element (3, 4,5,6, 7) which is movably arranged on the body, and having a sensor unit (18) for temperature and/or humidity measurement, characterized in that the sensor unit (18) is arranged at least partially on the closure element (3).

Description

Household appliance having a sensor unit arranged on a closure element

Technical Field

The invention relates to a household appliance having a body, a closure element movably arranged on the body, and a sensor unit for temperature and/or humidity measurement.

Background

Such a household appliance may be, for example, a refrigeration appliance, a cooking appliance or a dishwasher. If the household appliance is a refrigerator, it may be a refrigerator, a freezer or a combination refrigerator-freezer. It is known that when such a household appliance, in particular a household refrigeration appliance, is used in an ambient environment with high humidity and high temperature, condensation water forms on the outer wall element of the household appliance. The reason for this is that the temperature of the outer wall element is lower compared to the temperature of the surroundings. It is known to arrange heating elements on the outer wall element in order to avoid the formation of condensation water. In order to control such heating elements, it is desirable to measure the air humidity and temperature (in particular the ambient air humidity and the ambient temperature).

From U.S. Pat. No. 7,137,262 B2, a refrigerator with an additional heating device is known, which is controlled by means of an air humidity sensor fastened to the body of the refrigerator and by means of a temperature sensor.

Disclosure of Invention

The object of the invention is to improve the household appliance described above.

This object is achieved by the household appliance according to the invention. In such a household appliance, it is therefore provided that the sensor unit is arranged at least partially on the closure element.

Here, "at least in part" is to be understood as: at least one component of the sensor unit is arranged on the closure element. In particular, it is conceivable for the sensor unit to have two or more components, one of which is arranged on the closure element and one of which is arranged on the body.

The sensor unit is preferably arranged (at least partially) on the closure element in such a way that it is coupled to the closure element in a positionally fixed manner. Thus, upon opening (or closing) the closure element, the sensor unit moves with the closure element.

By arranging the sensor unit on the closure element, better results in terms of measurement accuracy can be achieved.

In one aspect, the sensor may be placed at a more suitable location for temperature measurement (or humidity measurement). The sensor unit may especially be positioned further towards a spatial centre point of a space where the household appliance is placed. Thereby, the probability of exposure of the sensor unit to the air flow present in the space may be increased, thereby making it possible to achieve a more realistic measurement result.

However, the arrangement of the sensor unit on the movable closure element mainly causes the sensor unit to be subjected to a strong forced flow each time the closure element is opened (or closed). It is thus evident that the air which is displaced by the moving closing element and which finally flows through the closing element (in particular its edge section) allows a more precise measurement. Such a risk can be avoided: the sensor unit merely determines a measurement result which corresponds to a single local and unchangeable point which, depending on its position, is not exposed or not substantially exposed to the air flow. It is furthermore possible to achieve that the targeted air flow caused by the forced flow passes through the receiving space of the closure element, in which the sensor is arranged. Thus, the risk of this is also reduced: the measurement results are distorted (or too slowly sought) due to the lack of air flow inside the sensor unit (or inside the receiving space).

Although the sensor unit is arranged on the closure element, this is more complicated than a conventional arrangement on the body. As a result, the power and data lines must be guided from the body into the closure element. However, the present invention is based on the recognition that: this additional expense is offset by faster and more reliable sensing of humidity or temperature, and in particular their changes.

Typically, the household appliance has a receiving space arranged completely (at least substantially completely) within the body. If a refrigerator is concerned, the receiving space is formed by a storage space for goods to be refrigerated (or frozen) (refrigerated goods), which in the case of a cooking appliance corresponds to a cooking space, and in the case of a dishwasher a rinsing container is concerned. In the closed position, the closing element closes the receiving space.

The closure element preferably has an outer wall and an inner wall spaced therefrom. In the case of a defined placement of the household appliance, the outer wall faces the user with the front side in the closed position of the closure element. In the closed position of the closure element, the inner wall faces the receiving space. The inner wall is located behind the outer wall along the depth direction. Between the outer wall and the inner wall, a cavity is usually formed, which can be filled, for example, with an insulating material (e.g., polyurethane foam). The outer and inner walls are usually interconnected by side, top and bottom cheeks which constitute the narrow sides of the closure element.

According to one embodiment, the sensor unit comprises at least one sensor. The sensor can in particular transmit the electrical signals of the measured values to an evaluation unit or a control unit. For this purpose, the sensor can be connected to an evaluation unit (or control unit) via an electrical line. The evaluation unit, the control unit and the electrical lines are not part of the sensor unit. The sensor may be in particular an air humidity sensor or a temperature sensor. It is particularly conceivable for the sensor unit to comprise both an air humidity sensor and a temperature sensor. Basically, it is also conceivable for the sensor unit to comprise more than two sensors.

According to one embodiment, it is provided that the sensor unit is arranged exclusively on the closure element. In this way, a relatively compact sensor unit can be used, in particular movable components in the sensor unit can be dispensed with.

In order to determine the ambient humidity (or ambient temperature), the sensor unit is preferably arranged at least partially exposed in the open position of the closure element. "arranged bare" is to be understood in particular as meaning: the sensor unit is exposed to (or faces) the surroundings of the household appliance. Thus, in particular, a direct contact with the ambient air is produced. Here, "at least in part" is to be understood as: it is not mandatory to place the entire sensor unit bare. Rather, it may be sufficient if at least certain components or elements (for example air flow openings) are arranged exposed. In principle, however, it is also conceivable for the entire sensor unit to be arranged in the open. In order to obtain more precise measurement results, it can be provided according to one embodiment that the sensor unit is arranged at least partially exposed in the closed position of the closure element. In this way, the measurement result can be determined in the open position of the closure element, during the movement of the closure element and in the closed position of the closure element.

Preferably, it is provided that the sensor unit is arranged completely outside the receiving space. Therefore, the measurement result can be prevented from being distorted. In particular, it can therefore be provided that no component (or section) of the sensor unit is arranged inside the receiving space (or does not delimit it).

According to one embodiment, the sensor unit is arranged on an edge section of the closure element. The influence of the air flowing around the closing element when the closing element is moved can thus be utilized to a maximum extent. The edge section can in particular be a horizontal or vertical edge section. If a vertical edge section is concerned and the closure element is formed by a pivotable door, this edge section is preferably an edge section: the edge section is opposite the door support. The air flow over this most mobile edge section will be most strongly formed. An "edge section" is preferably to be understood as a section of the closure element: this section corresponds to at most 30%, at most 20%, preferably at most 10% of the extension of the closure element, measured perpendicularly to the edge section. The horizontal edge section thus extends in the height direction, for example, over at most 30%, at most 20%, preferably at most 10% of the height extension of the entire closure element.

According to one embodiment, the sensor unit is arranged on a narrow side of the closing element. These narrow sides are in particular: side walls, top wall and bottom wall adjoining the outer wall of the closure element and extending in the depth direction, i.e. in the thickness direction of the closure element. In the case of a right-angled closure element, there are four narrow sides, namely two opposing side walls and opposing top and bottom walls. When the closing element is closed, a narrow side extends in the depth direction from a plane containing the outer wall up to a plane containing the contact surface of the closing element on the body. A horizontal narrow side (e.g., an upper narrow side or a lower narrow side) extends in a horizontal direction between two vertical narrow sides, and vice versa.

According to one embodiment, the sensor unit is arranged on a frame element of the closure element. Preferably, the frame element is arranged on a narrow side. In particular, it is conceivable for the frame element to be formed completely or substantially completely from a narrow side. It is conceivable that the frame element delimits a cavity between an outer wall and an inner wall of the closure element. The cavity may be filled with an insulating material, so that the frame element is preferably in contact with the insulating material along its entire longitudinal extension on the side facing the cavity. The frame element is preferably an elongated member. An "elongated component" is to be understood in particular as: the longitudinal extension corresponds at least to at least three times, at least four times, at least five times or at least eight times the other two extensions of the component. The frame element can in particular be formed by a door bar. The frame element is preferably integrated (i.e. one-piece) and/or preferably made of plastic (e.g. a plastic injection molded part). In this way, the connection geometry required for arranging the sensor unit can be provided simply and cost-effectively.

By arranging the sensor units on the edge sections and/or the narrow sides and/or the frame elements (in particular the door strips), the advantages according to the invention are likewise improved again on the one hand due to the advantageous positioning in the direction of the center point of the space and due to the maximum circulation of air. On the other hand, the sensor unit can be arranged particularly simply and cost-effectively (in particular with low structural complexity), since structural changes in the outer or inner wall can be avoided. Furthermore, an attractive external appearance of the domestic appliance can be kept at low cost, since the sensor unit cannot be detected or can only be detected with difficulty by the user at these mounting points. Furthermore, the sensor unit is much more effectively protected against damage than when it is arranged in a position that is easily accessible to the user.

Preferably, the sensor unit is arranged in a centrally located region in the width direction on the edge section and/or on the narrow side and/or on the frame element, which region has a maximum of 70% of the width extension, a maximum of 50% of the width extension or a maximum of 30% of the width extension. A good flow around the sensor unit can still further be ensured by this positioning. However, it is also possible to prevent the measurement results from being distorted by the influence caused by the heating of the folding struts.

According to one embodiment, it is provided that the sensor unit is arranged at least in sections in a receiving recess of the closing element (in particular of the frame element) and/or in particular in a receiving recess formed in the narrow side and/or in the edge section. This not only makes it possible to achieve a still attractive exterior appearance of the closure element in a simple and cost-effective manner, wherein the sensor unit can be arranged substantially invisible or barely visible to the user. Rather, the sensor unit is thereby also protected against contamination and/or damage. It is also conceivable for the sensor unit to be arranged only in sections in the receiving recess (it is also conceivable, for example, in the case of a multi-part sensor unit, for one of the parts to be arranged at least partially outside the receiving recess). However, it is preferably provided that the sensor unit is arranged completely or at least substantially completely in the receiving recess. In particular, it can be provided that the outwardly directed component of the sensor unit (for example, the cover element) extends flush with the wall element of the closure element adjoining the receiving recess. The receiving recess can have a passage through which the electrical line is guided into the receiving recess. In particular, the passage opening can connect the receiving recess to a cavity of the closure element which is arranged between the inner wall and the outer wall. The passage is preferably closed on the edge side and has a flange at the edge of the opening, which flange is directed toward the receiving recess. The flange can prevent: the condensate water is immersed into the through-opening and thus into the cavity. The receiving recess may have an attachment structure (e.g., a latch receiving portion, a side cut-out, a receiving flange, and/or a positioning pocket). These connecting structures are preferably configured to be integrated with the receiving recess (in particular with the frame element). Corresponding mating connection structures (for example latching hooks or latching tabs) can be formed on the sensor unit. These connection structures and the mating connection structures can preferably be arranged on the closure element in a form-fitting and/or force-fitting manner. In the receiving recess, further functional units of the domestic appliance can be integrated. For example, a door opening aid or a door closing aid can be integrated partially or completely in the receiving recess.

According to one embodiment, it is provided that the closure element (in particular the narrow side of the closure element) has a slot facing the body, and that the sensor unit is arranged in a wall section bounding the slot. The notch may be formed by a retraction. A free space which is favorable for air circulation can thus be realized in particular between the wall section and the body. In particular, it can be provided that the air flow opening is arranged on the rear side of the wall section facing the body (i.e. facing the free space). Preferably, the wall section is arranged in the depth direction in front of the slot. If the slot is arranged in a narrow side, the narrow side extends, in particular, in a stepped manner in a cross section arranged perpendicular to its longitudinal extent. The slot may be open on one side in the width direction and closed on the opposite side by a further wall section. A journal receptacle may also be disposed in the slot. The already described receiving recess can be arranged in the wall section. The receiving recess (if present) or the sensor unit preferably extends in the width direction only over a partial section of the wall section. However, provision can be made in the height direction and in the width direction for the receiving recess (if present) or the sensor unit to extend over the respective complete extension of the wall section. However, it is also conceivable that the receiving recess (if present) or the sensor unit does not extend to the outer wall in the depth direction. In this way, damage to the sensor unit can be better prevented and the fastening of the sensor unit on the one hand and the fastening of the outer wall on the other hand can be simplified.

Preferably, the sensor unit comprises a cover element. The cover element can on the one hand protect the sensor unit from contamination or damage. On the other hand, the cover element (in particular via the correspondingly positioned and configured air flow opening and air guide wall) can facilitate the guidance of air to the sensor itself. Furthermore, the covering element can also be configured to cover (or carry) further functional units of the household appliance.

According to one embodiment, it is provided that the closure element has a receiving space for a sensor of the sensor unit, and that the receiving space is delimited at least in sections by a cover element of the sensor unit. Furthermore, the receiving space can in particular also be delimited by a receiving recess. It is preferably provided that the receiving space is bounded only by the cover element and the receiving recess. The cover element, which is part of the sensor unit, is preferably one-piece and/or made of plastic (for example a plastic injection molded part). The cover element is preferably connected to the closure element in a form-fitting and/or force-fitting manner. For this purpose, a corresponding connecting structure (corresponding to the previously described connecting structure of the receiving recess) is formed on the closure element and a corresponding mating connecting structure (corresponding to the previously described mating connecting structure of the sensor unit) is formed on the cover element. Preferably, it is provided that the cover element can be fitted to the closure element without tools. Preferably, the disassembly can be done without damage, however, it cannot be done without tools. In this way it is ensured that: despite the simple assembly, the user cannot remove the sensor unit without authorization or negligence.

According to one embodiment, it is provided that the sensor is arranged on a sensor carrier connected to the cover element. It is preferably provided that the sensor carrier and the cover element are two components that are independent of one another and are each of one piece construction. The sensor carrier can be made of plastic (for example, a plastic injection molded part). By arranging the sensor on the sensor carrier, a better positioning of the sensor and a better encapsulation of the sensor against undesired environmental influences can be achieved than when the sensor is arranged, for example, directly on the closure element. The sensor and the sensor carrier (and, if necessary, also the cover element) can form a preassembled unit. A preassembled unit is to be understood here as: the components may have been fitted to each other in their final relative positions before being fastened to the closure element. The sensor carrier can be connected to the cover element by a form-locking and/or force-locking connection (for example a snap-in connection). It is also conceivable here that the sensor carrier and the cover element can be assembled without tools, but that a possible damage-free disassembly is only possible with the aid of tools. Preferably, the sensor carrier and the cover element enclose the sensor receiving space substantially completely (with the exception of the air exchange opening). The sensor receiving space is used to receive the actual sensor, including its control electronics (e.g. a semiconductor circuit board with the sensor fastened thereto). The air exchange opening is used to direct the necessary air flow past the sensor. By the sensor carrier and the cover element (apart from the air exchange opening) substantially completely enclosing the sensor receiving space, negative effects of environmental factors, in particular on the control electronics of the sensor, can be reduced.

According to one embodiment, it is provided that the receiving space is connected to the surroundings via at least two air flow openings on two surfaces arranged obliquely to one another. In this way, the air flow through the sensor unit (in particular through the receiving space) can be further improved. These surfaces are preferably oriented at right angles to each other. These air flow openings can be formed by the closure element and/or by the sensor unit. In particular, it is conceivable to form a defined gap or slot as an air flow opening at the junction between the sensor unit (e.g. the cover element) and the closure element.

According to one embodiment, it is provided that an air flow opening is arranged at the lowest position of the receiving space, in particular in the bottom region of the receiving space. Therefore, the air flow opening is located at the same height as the bottom in the height direction. In this way it is possible to prevent: the condensation water formed in the sensor unit may collect in the sensor unit if necessary. Rather, the respective air flow opening enables a more reliable outflow of the condensation water in addition to the air guidance.

According to one embodiment provision is made for an air guide wall to be provided in the receiving space. These air guide walls may in particular be arranged in the vicinity of the air flow opening. The vicinity is to be understood here as: the minimum distance is less than 1 cm, less than 0.5 cm or less than 0.25 cm. These air guiding walls ensure a targeted guidance of the air inside the sensor unit. These air guiding walls can be arranged on the closure element (for example in the receiving cavity) and/or on the cover element and/or on the sensor carrier, or they can be formed integrally with the respective component. These air guiding walls may in particular be constituted by (preferably separate) ribs. It is preferably provided that these air guide walls are formed separately from the outer walls or other delimiting walls of the receiving recess, of the cover element and of the sensor carrier.

According to one embodiment, a separating wall is provided in the receiving space for separating the line feed-through space. Although such a line introduction space is a part of the receiving space, it is preferable to adopt a partition manner almost sealed against water, which helps prevent condensed water or splash water from infiltrating into the line introduction space. It is therefore preferably provided that this separation completely or at least substantially completely prevents condensate water which has accumulated in the remaining part of the receiving space from penetrating into the line lead-in space. This separation can be achieved in particular by a separating wall. These partition walls can be formed on the closure element (in particular in the receiving recess) and/or on the sensor unit (in particular on the cover element). Preferably, the partition walls extend in the height direction (i.e. vertically). These partition walls also enable the cover element to be supported on the closure element. In this way, the cover element can be supported in view of forces acting on it (in particular vertically).

The closure element can be formed by a door, a drawer front or a flap.

According to one specific embodiment, the domestic appliance is a refrigerator, i.e. a domestic refrigerator.

The terms "upper", "lower", "front", "rear", "horizontal", "vertical", "depth direction", "width direction", "height direction" and the like denote positions and orientations given in the determined manner of use and in the determined arrangement of the household appliance and when an observer stands in front of the household appliance and looks in the direction of the household appliance.

Drawings

Embodiments of the invention are elucidated with the aid of the drawing. Shown here are:

FIG. 1: according to a schematic view of the household appliance of the present invention,

FIG. 2: in the partial view of figure 1, a,

FIG. 3: the closure element of figure 1 is shown in a rear view,

FIG. 4: an exploded view of the frame element with the sensor unit,

FIG. 5: a partial view of the frame element of figure 4,

FIG. 6: a sensor unit, and

FIG. 7 is a schematic view of: a schematic cross-sectional view of the section Vll-Vll according to fig. 2.

In the following, identical or functionally identical elements are provided with the same reference numerals.

Detailed Description

Fig. 1 shows a household appliance according to the invention in the form of a household refrigeration appliance 1 having a

body

2 and 5

closure elements

3,4,5,6, 7. The two closing elements 3,4 are formed by doors 8, 9. These doors 8,9 are supported on the body 2 by hinges 10,11 in a hinged manner about an axis oriented parallel to the height direction Z.

As can be seen in particular in fig. 2, the door 8 has an outer wall 12, which outer wall 12 lies substantially in a plane spanned by the width direction X and the height direction Z. Behind the outer wall 12 in the depth direction Y an inner wall 13 is arranged. The door 8 also has narrow sides 14,15 connecting the outer wall 12 with the inner wall 13. The narrow side 14, which extends substantially vertically (that is to say in the height direction Z), is formed by a side cheek 16. The narrow side 15 extending substantially horizontally, i.e. in the width direction X, is constituted by a top wall or cheek 17. The door 8 has two further narrow sides (formed by the other side cheek and the bottom wall or bottom cheek), not shown.

A sensor unit 18 for temperature and/or moisture measurement is arranged on the closing element 3 (or door 8).

The sensor unit 18 is arranged on the narrow side 15. The narrow side 15 has a notch 19 facing the body 2. That is, the notch 19 is open toward the body 2 in the depth direction Y. Against the depth direction Y, the slot 19 is delimited by a wall section 20. In the width direction X, this slot 19 is open towards one side and is bounded on the opposite side by a further wall section 21.

The sensor unit 18 is arranged only in the wall section 20. In particular, the sensor unit 18 is configured substantially flush with the top side 26 and the back side 27 of the wall section 20.

Furthermore, the door 8 has a seal 22 arranged on the inner wall 13 for sealing against the body 2. Furthermore, a circumferential partition 23 is formed on the inner wall 13, on which partition 23 a folding brace 24 is arranged. Furthermore, a separate attachment 25 (door shelf) is arranged on the inner wall 13.

An exploded view of the elongated frame member 28 and the sensor unit 18 is shown in fig. 4. The top cheek 17 is substantially entirely formed by the frame element 28. The frame element 28 is a plastic injection-molded part. The frame element 28 has a receiving recess 29. The sensor unit 18 comprises a cover element 30 and a sensor 31 fastened to a sensor carrier 32.

The cover element 30 and the sensor carrier 32 are each injection-molded plastic parts. The sensor 31 is fastened to a circuit board 33. The sensor 31 is an air humidity sensor.

The cover element 30 comprises air flow openings 34, which air flow openings 34 are arranged on and through a top wall as wall element 35. The cover element 30 also has an indentation 37 in the rear wall as wall element 36. As can be seen in particular in fig. 3, the cutout 37 in combination with the receiving recess 29 forms a further air flow opening 38.

The frame element 28 also has a journal receiving portion 39. The journal receiving portion 39 is disposed in the notch 19. The frame element 28 is constituted by a door strap.

The detailed view of the receiving recess 29 in fig. 5 shows the line channel opening 40, which line channel opening 40 appears as a connection of the receiving recess 29 to the cavity of the door 8. Power and data lines, not shown, are guided from the cavity through the line channel opening 40 into the receiving recess 29. These lines energize the sensors and transmit the measurement results to an evaluation unit arranged in the body 2. The line channel opening 40 is bounded by a surrounding flange 41. The flange 41 projects into the receiving recess 29 in the height direction Z. The flange 41 prevents: condensation water formed in the receiving recess 29 or splash water entering therein may reach the cavity through the line passage opening 40. Thus, special (in particular separately constructed) seals can be dispensed with.

The receiving recess 29 has a connecting structure for a form-locking connection with the cover element 30. These attachment structures include

positioning cavities

42a,42 b. The positioning recess 42a is constituted by a blind hole. The positioning recesses 42b are formed by recesses open on the edge side, which are integrated in a laterally bounding wall 43 of the receiving recess 29. All

positioning recesses

42a,42b are open in the height direction Z, so that the cover element 30 can be inserted from above (or from obliquely above) and anchored. These connecting structures also comprise two latch receptacles 44, in each of which two lateral cutouts 45 are formed in the two latch receptacles 44. Finally, the connection structures also include a landing flange 46, the landing flange 46 being formed on the lateral bounding walls 43 and a rearward bounding wall 47. These connecting structures are configured integrally with the receiving recess 29.

Furthermore, the receiving recess 29 has

partition walls

48, 49. These

partition walls

48,49 are connected to a partition wall 61 (see fig. 6) formed on the sensor carrier 33 for separating the line feed-through space 50 and the receiving space for the sensor 31 from each other.

Air guide walls

52,53 are formed in receiving recess 29, and these

air guide walls

52,53 ensure that: the air flowing through these

air flow openings

34, 38 passes directly through the sensor 31. An air guide wall 52 is formed of independent ribs. Two further air guide walls 53 are formed by bounding walls of the base 54.

Fig. 6 shows the sensor unit 18 in an assembled state. The sensor unit 18 comprises mating connection structures which are formed only on the cover element 30. These mating connection structures include four locating tabs 55. As long as the sensor unit 18 is arranged in the receiving recess 29, the

positioning webs

55a, 55b engage in the positioning recesses 42a,42 b. On the one hand, the position of the cover element 30 during assembly is thus predetermined, which is simplified. On the other hand, these positioning webs 55b can also serve in particular to guide forces acting from above on the cover element 30 vertically out into the receiving recess 29. These mating connection structures also comprise two latching hooks 56, the latching noses of which latching hooks 56 latch onto the undercuts 45 of the latching receptacles 44 as long as the cover element 30 is arranged in the receiving recess 29. If the cover element 30 is arranged in the receiving recess 49, the edge section 57 of the cover element 30 rests on the receiving flange 46.

The sensor carrier 32 has latching hooks 58, which latching hooks 58 engage in latching openings 59 of the cover element 30 in order to latch the two components to one another. The sensor 31 is protected in the sensor receiving space from the environment as far as possible. The sensor receiving space is connected to the receiving space 51 only via the air exchange opening 60. The air flowing in the receiving space 51 flows along the sensor 31 through the air exchange opening 60.

The cover element 30 has a partition wall 61 to separate the line introduction space 50 from the receiving space 51. The partition walls 61 also constitute independent ribs.

The cover element 30 has

air guiding walls

62,63, which

air guiding walls

62,63 ensure that the air flowing through the

air flow openings

34, 38 will pass directly through the sensor 31. The air guide wall 63, which at the same time forms the delimitation of the air exchange opening 60, has two drip-sloping edges 64 on its edge section facing the air exchange opening 60. These drip edges 64 prevent: the condensed water formed on the air guide wall 63 may enter the air exchange opening 60.

The power supply lines and data lines 65 (shown here cut-off for illustration purposes) are guided into the sensor receiving space by means of plugs.

Fig. 7 shows a sectional view of the door 8 along the section Vll-Vll of fig. 2, however without the outer wall 12 and without the inner wall 13. The air flow through the sensor unit 18 is schematically shown by means of arrows. These

air guide walls

62,63 ensure that the air flowing past the sensor 31 passes through it in a targeted manner.

List of reference numerals

1. Domestic refrigeration appliance

2. Body

3,4,5,6,7 closure element

8,9 door

10,11 hinge

12. Outer wall

13. Inner wall

14,15 narrow side

16. Side cheek plate

17. Top cheek plate

18. Sensor unit

19. Notch opening

20. Wall segment

21. Additional wall section

22. Sealing element

23. Parting strip

24. Folding brace rod

25. Attachment member

26. Top side

27. Back side of

28. Frame element

29. Receiving recess

30. Covering element

31. Sensor with a sensor element

32. Sensor carrier

33. Circuit board

34. Air exchange opening

35,36 wall element

37. Incision

38. Air exchange opening

39. Journal receiving portion

40. Line channel opening

41. Flange

42a,42b locating concave cavity

43. Boundary wall

44. Latch receiver

45. Side cut part

46. Bearing flange

47. Boundary wall

48,49 partition wall

50. Line lead-in space

51. Receiving space

52,53 air guide wall

54. Base seat

55. Positioning connecting piece

56. Latch hook

57. Edge section

58. Latch hook

59. Latch opening

60. Air exchange opening

61. Partition wall

62,63 air guide wall

64. Drip edge

65. Line

Claims

1. A household appliance having:

-a body (2),

-a closure element (3, 4,5,6, 7) movably arranged on the body, and

a sensor unit (18) for temperature measurement and/or humidity measurement,

it is characterized in that the preparation method is characterized in that,

the sensor unit (18) is arranged at least partially on the closure element (3) such that it moves with the closure element when the closure element is opened or when the closure element is closed,

the closure element (3) has a slot (19) facing the body (2), the sensor unit (18) is arranged in a wall section (20) bounding the slot (19),

the slot (19) is formed by a retraction and a free space is realized between the wall section (20) and the body (2),

the closure element (3) has a receiving space (51) for a sensor (31) of the sensor unit (18), the receiving space (51) being connected to the surroundings via at least two air flow openings (34, 38) in two wall elements (35, 36) arranged obliquely to one another, and

one (38) of the at least two air flow openings (34, 38) is arranged on a rear side of the wall section (20) facing the body (2).

2. The household appliance according to claim 1,

it is characterized in that the preparation method is characterized in that,

the sensor unit (18) is arranged only on the closure element (3).

3. The household appliance according to claim 1 or 2,

it is characterized in that the preparation method is characterized in that,

the sensor unit (18) is at least partially arranged in the closed position of the closing element (3) in an exposed manner.

4. The household appliance according to claim 1 or 2,

it is characterized in that the preparation method is characterized in that,

the sensor unit (18) is arranged on an edge section of the closure element (3).

5. The household appliance according to claim 1 or 2,

it is characterized in that the preparation method is characterized in that,

the sensor unit (18) is arranged on a narrow side (15) of the closure element (3).

6. The household appliance according to claim 1 or 2,

it is characterized in that the preparation method is characterized in that,

the sensor unit (18) is arranged on a frame element (28) of the closure element (3).

7. The household appliance according to claim 1 or 2,

it is characterized in that the preparation method is characterized in that,

the sensor unit (18) is arranged at least in sections in a receiving recess (29) of the closure element (3).

8. The household appliance according to claim 1 or 2,

it is characterized in that the preparation method is characterized in that,

the receiving space (51) is delimited at least in sections by a cover element (30) of the sensor unit (18).

9. The household appliance according to the claim 8,

it is characterized in that the preparation method is characterized in that,

the sensor (31) is arranged on a sensor carrier (32) which is connected to the cover element (30).

10. The household appliance according to claim 8,

it is characterized in that the preparation method is characterized in that,

the air flow opening (38) is arranged at the lowest position of the receiving space (51).

11. The household appliance according to claim 8,

it is characterized in that the preparation method is characterized in that,

an air guide wall (52, 53, 62, 63) is provided in the receiving space (51).

12. The household appliance according to claim 8,

it is characterized in that the preparation method is characterized in that,

a separating wall (48, 49, 61) is arranged in the receiving space (51) for separating a line introduction space (50).

13. The household appliance according to any one of claims 1-2, 9-12,

it is characterized in that the preparation method is characterized in that,

the closure element (3) is a door (8) or a drawer front, and/or

The household appliance is a household refrigeration appliance (1).

14. The household appliance according to the claim 6, wherein,

it is characterized in that the preparation method is characterized in that,

the sensor unit (18) is arranged at least in sections in a receiving recess (29) of the frame element (28).

15. The household appliance according to claim 5,

it is characterized in that the preparation method is characterized in that,

the narrow side (15) of the closure element (3) has a notch (19) facing the body (2), and

the sensor unit (18) is arranged in a wall section (20) which delimits the slot (19).

16. The household appliance according to any one of the preceding claims 10,

it is characterized in that the preparation method is characterized in that,

an air flow opening (38) is arranged in a bottom region of the receiving space (51).