STROLLER

Description

[0001] The present invention relates to a stroller with a compartment for a child, with an intermediate floor for carrying the child and with an underfloor space arranged on the side of the intermediate floor opposite the compartment.

[0002] A stroller with a fan is known from DE 197 10 466 A1.

[0003] DE 555 745 C reveals a stroller with a fan in the underbody.

[0004] In KR 2018 0079597 A, a stroller is also disclosed which has a ventilation system for the child.

[0005] In WO 2008 / 010209 A2, another stroller is revealed which has a fan in the upper area for ventilation of the child.

[0006] The object of the present invention is to improve the state of the art.

[0007] The problem is solved by a stroller with the features of the independent claim. Preferred embodiments are described in the dependent claims.

[0008] A stroller for children or toddlers is suggested. The children can be pushed using the stroller.

[0009] The stroller includes a compartment for the child.

[0010] Furthermore, the stroller includes an intermediate platform for carrying the child. The intermediate platform supports the child, thus ensuring it is received in the reception area.

[0011] Furthermore, the stroller includes an underfloor space located on the side of the intermediate floor opposite the receiving area.

[0012] According to the invention, the stroller has an electric ventilation device by means of which the carbon dioxide level in the stroller can be reduced. Carbon dioxide can accumulate in the stroller, in which the child lies or sits, and is primarily exhaled by the child. Especially during early childhood development, carbon dioxide can be harmful. The ventilation device reduces the carbon dioxide level in the stroller.

[0013] It is advantageous to locate the ventilation system in the underfloor space. This reduces the carbon dioxide level there. Additionally or alternatively, the ventilation system can be located in the intake area to reduce the carbon dioxide level there as well.

[0014] Furthermore, the ventilation system includes an extraction device that removes carbon dioxide exhaled by the child from the stroller. This extraction device gently reduces the carbon dioxide level in the stroller for the child's comfort.

[0015] Additionally, it is advantageous if the ventilation system includes a vent for blowing in fresh air. This also helps to reduce the carbon dioxide level inside the stroller.

[0016] The ventilation device allows fresh air to be introduced in a targeted manner.

[0017] It is advantageous if the extraction system can remove carbon dioxide from the underfloor space. Since carbon dioxide is heavier than air, it sinks to the ground. Because the underfloor space, when the stroller is used as intended, is located under the intermediate floor and therefore under the child, carbon dioxide can accumulate there. The extraction system can remove the carbon dioxide from this area, thus preventing unpleasant drafts for the child.

[0018] Additionally or alternatively, the suction device can also extract the carbon dioxide from the intake area. This allows the carbon dioxide to be extracted directly where it is produced, namely at the child's location. It is possible that carbon dioxide may also accumulate in the child's area, making extraction there advantageous.

[0019] Additionally, it is advantageous if the ventilation system can blow fresh air into the underfloor space. It is also advantageous if the ventilation system can blow fresh air into the passenger compartment. Blowing in fresh air can also reduce the carbon dioxide level, as air with a high carbon dioxide content mixes with fresh air in the stroller, especially in the passenger compartment and / or underfloor space.

[0020] It is advantageous if the stroller has at least one carbon dioxide sensor to measure the carbon dioxide level inside the stroller, particularly in the underfloor area and / or the passenger compartment. The carbon dioxide sensor can be located in the underfloor area. Alternatively, or in addition, the carbon dioxide sensor can also be located in the passenger compartment. The carbon dioxide level can be determined using the carbon dioxide sensor, allowing the ventilation system to be controlled based on this measurement.

[0021] It is advantageous if the ventilation system includes at least one electric fan located in an exterior wall of the underfloor space. This allows for direct air exchange with the environment surrounding the stroller. The fan can be located in the stroller's base, enabling ventilation through the base. Fresh air can be drawn directly into the stroller from the surrounding environment, particularly from beneath it. Air containing high levels of carbon dioxide can also be expelled from the stroller into the surrounding environment, where it dissipates. The exhaust system and / or the ventilation system can incorporate the electric fan.

[0022] It is advantageous if the intermediate floor is thermally insulated, preferably with a thermal insulation material such as cork. This helps keep the child warm.

[0023] It is advantageous if the intermediate floor is rigid and / or self-supporting.

[0024] It is advantageous to have a support element in the subfloor space that supports the intermediate floor in an interior area.

[0025] It is advantageous to have a mattress placed on the mezzanine level in the reception area. This allows the child to be comfortably placed on the mattress or the mezzanine level.

[0026] Additionally or alternatively, it is advantageous if the intermediate floor is breathable, allowing carbon dioxide to flow from the sleeping area into the space beneath the floor. Alternatively, the mattress can also be breathable, allowing carbon dioxide to flow from the sleeping area into the space beneath the floor. This allows the carbon dioxide exhaled by the child to enter the space beneath the floor, where it is then removed. The carbon dioxide can be collected in the space beneath the floor. There, the carbon dioxide level can be reduced by means of the ventilation system, for example, by extracting the carbon dioxide using the extraction system.

[0027] It is advantageous if the intermediate floor has initial openings. This allows carbon dioxide to enter the subfloor space by flowing through these openings.

[0028] Additionally or alternatively, it is advantageous if the mattress is at least partially made of a breathable material, especially mesh. This allows carbon dioxide to pass through the mattress and into the space beneath the floor.

[0029] Additionally or alternatively, it is advantageous if the mattress has a second set of openings. Carbon dioxide can also flow through these second openings.

[0030] Additionally or alternatively, fresh air can flow through the mattress, through the first and / or second openings, to reduce the carbon dioxide content in the stroller.

[0031] It is advantageous if the mattress has a padded layer with additional ventilation openings. The padded layer allows the child to lie comfortably, while the ventilation openings within it allow carbon dioxide and / or fresh air to flow through.

[0032] Additionally or alternatively, the mattress has at least one cover layer, in particular made of mesh and / or for covering the secondary openings, arranged above and / or below the padding layer. This cover layer protects the padding layer from damage and / or the secondary openings from dirt. Furthermore, at least one of the cover layers can be removable for cleaning.

[0033] It is advantageous if the stroller has a presence sensor to detect a child lying in the room. The presence sensor can then be used to control the ventilation system, for example. If the child is removed, the presence sensor detects this, or that no child is present, and the ventilation system is switched off.

[0034] It is advantageous if the presence sensor is a pressure sensor, preferably located on the intermediate floor, particularly on the side facing the recording area. This allows the child's presence to be easily detected.

[0035] It is advantageous if the mattress, particularly on its side facing the intermediate floor and / or above the cover layer, has a pressure plate that corresponds to the pressure sensor and is especially hard and / or rigid. The pressure plate increases the sensitive area for the pressure sensor. For example, if the child moves, their presence can still be detected by the pressure sensor.

[0036] It is advantageous if the stroller has a temperature sensor to detect the temperature inside. This also allows the ventilation system to be controlled. If the temperature is too high or too low, the stroller can be ventilated to regulate the temperature.

[0037] It is advantageous if the stroller includes a breathing sensor to detect pauses in the child's breathing. The breathing sensor can be positioned on, under, and / or inside the mattress. Using the breathing sensor, the child's breathing can be monitored, and an alarm can be triggered after a certain pause in breathing. This can help prevent sudden infant death syndrome (SIDS). Such breathing sensors may, for example, have sensors that detect the rhythmic movement during breathing. They may also include microphones to monitor breathing sounds.

[0038] It is advantageous if the stroller includes an alarm device, especially an audible and / or visual one. For example, an alarm tone can be emitted or a flashing light can indicate an alarm.

[0039] It is advantageous if the stroller has a control unit. The control unit can be designed to automatically activate and deactivate the ventilation device, in particular the extraction device and / or the ventilation device, and / or the alarm, depending on the carbon dioxide level measured by the carbon dioxide sensor. For example, if the carbon dioxide level rises above a certain threshold, the control unit can activate the ventilation device and / or the alarm.

[0040] Additionally or alternatively, the control unit can be designed so that, depending on the presence of the child detected by the presence sensor, the ventilation device, in particular the extraction device and / or the ventilation device, and / or the alarm can be automatically activated and deactivated. For example, the control unit can deactivate the ventilation device and / or the alarm when the child is removed from the stroller, which is detected by the presence sensor.

[0041] Additionally or alternatively, the control unit can be designed to automatically activate and deactivate the ventilation device, in particular the suction device and / or the ventilation device, and / or the alarm, depending on a pause in breathing detected by the breathing sensor. For example, the control unit can activate the alarm and / or the ventilation device when the breathing sensor detects that the child has stopped breathing.

[0042] Additionally or alternatively, the control unit can be designed such that, depending on the temperature detected by the temperature sensor, the ventilation device, in particular the extraction device and / or the ventilation device, and / or the alarm can be automatically activated and deactivated. For example, the ventilation device and / or the alarm can be activated if the temperature in the stroller exceeds a limit value in order to prevent the child from overheating.

[0043] It is advantageous if the stroller includes a control element that allows the ventilation system, particularly the exhaust system and / or the ventilation system, to be manually activated and deactivated. Using this control element, the ventilation system can also be activated if the control unit would not activate it.

[0044] The control element can therefore be activated regardless of whether the child is in the stroller or not, or whether, for example, the carbon dioxide level exceeds the limit. Furthermore, the control element can be designed to have, in addition to activation and deactivation (i.e., an on and off setting), a setting for automatic operation. The control element can thus have three settings. Using automatic operation, the control unit can then control the ventilation device, in particular the extraction device and / or the ventilation device, and / or the alarm, depending on the at least one of the aforementioned sensors.

[0045] It is advantageous if the stroller includes a display showing a value detected by at least one sensor. This allows the owners to assess whether the ventilation system, in particular the exhaust system and / or the ventilation system, should be activated or deactivated.

[0046] It is advantageous if the fan can also be operated in reverse, so that air from outside can be blown into the stroller. This allows for a simple and cost-effective design of the stroller.

[0047] It is advantageous if the stroller has an energy storage device that can power at least the electric ventilation system, in particular the exhaust system and / or the ventilation system. The energy storage device can comprise a rechargeable battery and / or a replaceable battery. The energy storage device can also power the control unit, the display, and / or at least one of the aforementioned sensors. Furthermore, all electrical components of the stroller can be operated using the energy storage device.

[0048] It is advantageous if the stroller has at least one solar panel that can power the electric ventilation system, in particular the exhaust system and / or the ventilation system, and / or charge the energy storage unit. The solar panel can generate the electrical energy required to operate the stroller or store this energy temporarily. The solar panel can also be removable to allow cleaning of the stroller in the area of ​​the solar panel or around the solar panel itself. The solar panel can, for example, be mounted on a sunshade and / or a cover.

[0049] It is advantageous if the stroller has a heating unit, preferably located on the intermediate floor and / or arranged in such a way that air heated by the heating unit can be blown into the passenger compartment by the electric ventilation device, in particular the extraction device and / or the ventilation device. This helps to keep the child warm, especially in colder weather.

[0050] It is advantageous if the stroller has a lighting device, particularly on the outside of the stroller base. This lighting device can illuminate the road during darker months or in the evenings, thus improving visibility. It can also provide passive lighting, making the stroller visible to other road users in the dark.

[0051] It is advantageous if the stroller has a wireless interface, especially Bluetooth, Wi-Fi, or a cellular connection. Particularly after returning from a walk, the child may have fallen asleep in the stroller. A wireless interface allows the stroller to connect to a smartphone, enabling the transmission of notifications or alerts. For example, an alert can be sent to the smartphone if the carbon dioxide level rises or exceeds a certain threshold, if the breathing sensor detects a cessation of breathing, or if the temperature sensor registers a rise or fall in temperature. This enhances the child's safety. Furthermore, a cellular connection allows for alerts to be sent even in remote locations. For instance, emergency services can be notified via this connection.

[0052] Further advantages of the invention are described in the following exemplary embodiments. These show: Figure 1 a schematic side view of a stroller with an electric ventilation device, Figure 2 a cutaway view of the stroller and Figure 3 A partially cutaway and partially schematic view of the stroller.

[0053] Figure 1 Figure 1 shows a schematic side view of a stroller 1 with an electric ventilation device 5. The stroller 1 includes a chassis 29 for pushing it along roads. Furthermore, the stroller 1 has a handle 30 for pushing. Additionally, the stroller 1 of this embodiment has a sunshade 28, which can be foldable.

[0054] The stroller 1 includes a compartment 2 for a child, which is not shown here. Furthermore, the stroller 1 includes an intermediate platform 3 for carrying the child. When the intermediate platform 3 is supporting the child, the child is positioned in the compartment 2. The stroller 1 also includes an underfloor compartment 4, which is located on the side of the intermediate platform 3 opposite the compartment 2.

[0055] Furthermore, the stroller 1 features an electric ventilation device 5, which reduces the carbon dioxide level inside the stroller 1. The child in the stroller 1 constantly exhales carbon dioxide, which is heavier than air. Consequently, the carbon dioxide accumulates in the stroller 1 and can thus lead to the child receiving insufficient oxygen. The electric ventilation device 5 reduces the carbon dioxide level inside the stroller 1. The electric ventilation device 5 can also simply be referred to as the ventilation device 5.

[0056] The ventilation device 5 can, as shown in this embodiment, be arranged in the area of ​​the underfloor space 4 to reduce the carbon dioxide content there. Since, as described above, carbon dioxide is heavier than air, it collects at the lowest points of the stroller 1, so that it can accumulate in the area of ​​the underfloor space 4. Additionally or alternatively, the ventilation device 5 can also be arranged in the area of ​​the passenger compartment 2 to reduce the carbon dioxide content there. This reduces the carbon dioxide content directly at the child's location or, for example, prevents the carbon dioxide from entering the underfloor space 4.

[0057] Furthermore, the ventilation device 5 includes an extraction device by means of which the carbon dioxide exhaled by the child can be extracted. If the extraction device is located in the area of ​​the underfloor space 4, it can extract the carbon dioxide that has accumulated or is accumulating there. Additionally or alternatively, the extraction device can also be located in the area of ​​the intake space 2 in order to extract the carbon dioxide from the intake space 2.

[0058] Additionally, the ventilation device 5 can also include a ventilation unit for blowing in fresh air. This also helps to reduce the carbon dioxide level. The ventilation unit can be located in the area of ​​the intake chamber 2 to blow the fresh air into the intake chamber 2. This ensures that the fresh air reaches the child directly. Alternatively, or in addition, the ventilation unit can also be located in the area of ​​the underfloor space 4 to blow fresh air into this space.

[0059] According to the embodiment shown here, the ventilation device 5 is arranged laterally on the stroller 1. The ventilation device 5 is located in an outer wall 10 of the stroller 1, thus establishing a connection to the environment. The extracted carbon dioxide can therefore be released into the environment. Fresh air can also be drawn in from the environment. Additionally or alternatively, the ventilation device 5 can also be arranged in a stroller floor 11 to release the carbon dioxide downwards from the stroller 1.

[0060] According to the present embodiment, the ventilation device 5 includes a fan 9 to move gas, i.e., air and / or carbon dioxide. The fan 9 can be operated to extract the carbon dioxide from the stroller 1. Additionally or alternatively, the fan 9 can also be operated to blow fresh air into the stroller 1.

[0061] The stroller 1 of the present embodiment further comprises at least one carbon dioxide sensor 8a, 8b. Here, two carbon dioxide sensors 8a, 8b are shown, wherein a first carbon dioxide sensor 8a is arranged in the area of ​​the receiving chamber 2 and a second carbon dioxide sensor 8b is arranged in the area of ​​the underfloor chamber 4. The carbon dioxide content in the stroller 1 can be measured using the at least one carbon dioxide sensor 8a, 8b.

[0062] Furthermore, the stroller 1 of the present embodiment has a control unit 6 by means of which at least the ventilation device 5 can be controlled. The control unit 6 can be connected to at least one carbon dioxide sensor 8a, 8b in order to control at least the ventilation device 5 based on the measured values. Additionally or alternatively, the control unit 6 can also be connected to the other sensors described in particular in the preceding and / or following description in order to control at least the ventilation device 5.

[0063] Furthermore, the stroller 1 of the present embodiment has at least one presence sensor 7 by means of which the presence of the child can be detected. The presence sensor 7 can, for example, be designed as a pressure sensor by means of which the presence of the child is detected. In addition to or alternatively to the at least one carbon dioxide sensor 8a, 8b, the presence sensor 7 can also be connected to the control unit 6 so that the ventilation device 5 can be controlled based on the presence of the child. For example, the control unit 6 can deactivate the ventilation device 5 when the child is removed. In addition or alternatively, the control unit 6 can also activate the ventilation device 5 when the presence of the child is detected, thus providing the reason for activating the ventilation device 5.

[0064] Likewise, the stroller 1 of the present embodiment has an energy storage device 21, which can be used to operate the stroller 1. In particular, it can be used to operate the ventilation device 1.

[0065] Furthermore, the stroller 1 of the present embodiment has at least one solar unit 22 by means of which the stroller 1 can be operated. In particular, the ventilation device 5 can be operated by means of the solar unit 22. Additionally or alternatively, the energy storage device 21 can also be charged by means of the solar unit 22. The solar unit 22 can be removable. Consequently, for example, the solar unit 22 itself or the part of the stroller 1 on which the solar unit 22 is arranged can be cleaned. According to the present embodiment, the solar unit 22 is arranged on a cover 26 for the receiving compartment 2. By removing the solar unit 22, the cover 26 can thus be cleaned or replaced in this embodiment. The solar unit 22 can, for example, be attached to the stroller 1 in a removable manner by means of snap fasteners, a zipper, and / or a hook-and-loop fastener.Additionally or alternatively, the solar unit 2 shown here, preferably with the features described here, can also be arranged on the sunshade 28.

[0066] Furthermore, the stroller 1 of the present embodiment has at least one temperature sensor 18 by means of which the temperature inside the stroller 1 can be determined. The temperature sensor 18 is arranged here in the area of ​​the receiving chamber 2 so that the child's temperature can be determined. The temperature sensor 18 can also be connected to the control unit 6. With the aid of the temperature sensor 18, the control unit 6 can activate or deactivate the ventilation device 5.

[0067] Furthermore, the stroller 1 of the present embodiment has at least one breathing sensor 19, by means of which the child's breathing can be detected. The breathing sensor 19 is arranged in the area of ​​the receiving compartment 2, as shown here. Additionally or alternatively, the breathing sensor 19 can also be arranged in the area of ​​the intermediate floor 3, in particular under the intermediate floor 3, in order to detect, for example, the rhythmic breathing of the child. The breathing sensor 19 can, for example, include a motion sensor and / or a microphone to monitor the child's breathing. With the aid of the breathing sensor 19, an cessation of the child's breathing can be detected and a corresponding alarm can be issued.

[0068] In order to be able to issue an alarm, the stroller 1 of the present embodiment has at least one alarm transmitter 27. The alarm transmitter 27 can issue acoustic and / or visual alarms. The alarm transmitter 27 can be connected to the control unit 6 so that, for example, the control unit can issue an alarm when the breathing sensor 19 detects that the child has stopped breathing.

[0069] Figure 2 shows a sectional view of stroller 1. The view here is from the front.

[0070] For the sake of simplicity, features already described in at least one preceding figure are not explained again. Furthermore, features may only be described in this figure or in at least one of the subsequent figures. For the sake of simplicity, the same reference symbols are used for identical features. Additionally, for the sake of clarity, not all features can be shown in the following figures. However, features shown in one or more of the preceding figures may also be present in this figure or in one or more of the subsequent figures. Furthermore, for the sake of clarity, features may only be shown in this figure or in one or more of the subsequent figures. Nevertheless, features shown only in one or more of the subsequent figures may also already be present in a preceding figure.

[0071] According to the embodiment shown here, the ventilation device 5 is arranged in the stroller floor 11. Furthermore, the ventilation device 5 is arranged in the area of ​​the underfloor space 4.

[0072] Furthermore, according to the embodiment shown here, the intermediate floor 3 has first through-openings 13, whereby for the sake of clarity only one first through-opening 13 is indicated with a reference numeral. Gas, for example carbon dioxide and / or fresh air, can flow through the intermediate floor 3 via the first through-openings 13. Since carbon dioxide is heavier than air, it automatically sinks from the receiving chamber 2 into the underfloor chamber 4.

[0073] Furthermore, the stroller 1 has a mattress 12, which is located on the side of the intermediate floor 3 facing the reception area 2. The child can lie comfortably on the mattress 12.

[0074] According to the present embodiment, the mattress 12 has second through-openings 14, whereby, for the sake of clarity, only one of the second through-openings 14 is labelled here. Gas, for example carbon dioxide and / or fresh air, can also flow through the mattress 12 via the second through-openings 14. In particular, the carbon dioxide can pass through the mattress 12 into the underfloor space 4. Additionally or alternatively, the mattress 12 can also be designed to be air-permeable.

[0075] According to the present embodiment, the mattress 12 comprises a padding layer 15 to provide a comfortable sleeping surface for the child. The mattress 12 further comprises at least one cover layer 16, which covers the padding layer 15. The cover layer 16 can be removable from the padding layer 15, for example, for cleaning. The cover layer 16 can also be breathable.

[0076] The mattress 12, the padding layer 15 and / or the cover layer 16 can also be a mesh.

[0077] According to the present embodiment, the presence sensor 7, which can be a pressure sensor, is arranged on the side of the intermediate floor 3 facing the recording room 2.

[0078] A pressure plate 17 can be assigned to the presence sensor 7, which is designed as a pressure sensor. The presence of the child can be detected by means of the pressure plate 17, even if the child moves to the side. The reliability of the presence sensor 7, which is designed as a pressure sensor in this case, can be improved by means of the pressure plate 17. The pressure plate 17 is located on the side of the mattress 12 facing the intermediate shelf 3. Additionally or alternatively, the pressure plate 17 can also be located on the presence sensor 7, which is designed as a pressure sensor, and / or on the intermediate shelf 3.

[0079] Figure 3Figure 1 shows a partially cutaway and partially schematic view of the pram. For the sake of simplicity, not all features are explained. Furthermore, not all features are shown, particularly in comparison to at least one of the preceding figures.

[0080] The stroller 1 of the present embodiment further comprises a heating unit 23 by means of which the child can be warmed. The heating unit 23 is arranged here between the intermediate floor 3 and the mattress 12. The heating unit 23 is arranged on the side of the intermediate floor 3 facing the receiving compartment 2. Additionally or alternatively, the heating unit 23 can also be arranged on the side of the intermediate floor 3 facing the underfloor compartment 4. The heating unit 23 can advantageously also be operated by the energy storage device 21. Furthermore, the heating unit 23 can be controlled by the control unit 6. The control unit 6 can control the heating unit 23 depending on the measurement of the temperature sensor 18.

[0081] Furthermore, the stroller 1 of the present embodiment has two ventilation devices 5a, 5b. The first ventilation device 5a is located in the area of ​​the underfloor compartment 4, and the second ventilation device 5b is located in the area of ​​the receiving compartment 2. For example, the first ventilation device 5a can be the extraction device and the second ventilation device 5b the ventilation device. This allows carbon dioxide to be extracted from the underfloor compartment 4 and fresh air to be blown into the receiving compartment 2. Alternatively, both ventilation devices 5a, 5b can be extraction devices. It is also possible for the first ventilation device 5a to be the ventilation device and the second ventilation device 5b to be the extraction device.

[0082] According to the present embodiment, the outer wall 10 extends vertically over the receiving space 2 and the underfloor space 4. The receiving space 2 and the underfloor space 4 thus share the same outer wall 10. The intermediate floor 3 therefore divides the receiving space 2 and the underfloor space 4 and / or also extends between the outer wall 10 of the stroller 1 in the transverse direction of the stroller 1. Only the intermediate floor 3, on which the child lies, is arranged between the receiving space 2 and the underfloor space 4.

[0083] The receiving space 2 and / or the underfloor space 4 extend completely across the transverse and / or longitudinal direction of the stroller 1 between the outer wall 10. This ensures that the receiving space 2 and / or the underfloor space 4 is as large as possible in the transverse and / or longitudinal direction of the stroller 1.

[0084] The receiving space 2 and / or the underfloor space 4 extend completely in a transverse direction between the outer wall 10. The outer wall 10 thus laterally delimits the receiving space 2 and / or the underfloor space 4 outwards towards the surroundings of the stroller 1.

[0085] According to the present embodiment, the intermediate floor 3 is connected to the outer wall 10.

[0086] It should be noted that the outer wall 10 has a section on the left and right as shown here. Figure 3 exhibits. If the recording space 2, the subfloor space 4 and / or the intermediate floor 3 thus extend in a transverse direction, this means that they extend from the left section to the right section (in this view) of the outer wall 10. Additionally or alternatively, the outer wall 10 can, as in Figure 1As shown, it has a front section and a rear section. Therefore, the receiving space 2, the underfloor space 4 and / or the intermediate floor 3 can also be located longitudinally between the front and rear sections (in the view of the Figure 1 ) of the outer wall 10. The outer wall 10 can surround the stroller base 11, which is located at the bottom of the child seat 1.

[0087] Furthermore, the stroller 1 has a radio interface 25. This radio interface 25 can, for example, be used to establish a connection to a smartphone in order to transmit an alarm to the smartphone. The radio interface 25 can also be configured to establish a mobile network connection, either additionally or alternatively. This allows, for example, an emergency call to be made even in remote locations.

[0088] Furthermore, the stroller 1 has a control element 20. The control element 20 can be used, for example, to switch off the ventilation device 5. Additionally or alternatively, the ventilation device 5 can also be activated using this control element 20. Additionally or alternatively, an automatic mode can also be activated using this control element 20, in which the control unit 6 controls the ventilation device 5.

[0089] Furthermore, the stroller 1 has at least one lighting device 24. A first lighting device 24a is assigned to the passenger compartment 2, so that the child can be illuminated even in darkness. A second lighting device 24b, shown here, is assigned to the ground, so that the ground, in particular unevenness, can be detected. The second lighting device 24b can also contribute to passive safety, as it makes the stroller 1 visible to other road users in the dark. Reference symbol list

[0090] 1 Stroller 2 Storage compartment 3 Intermediate floor 4 Underfloor compartment 5 Ventilation device 6 Control unit 7 Presence sensor 8 Carbon dioxide sensor 9 Fan 10 Outer wall 11 Stroller base 12 Mattress 13 First passage openings 14 Second passage openings 15 Padding layer 16 Cover layer 17 Pressure plate 18 Temperature sensor 19 Breathing sensor 20 Control element 21 Energy storage 22 Solar unit 23 Heating unit 24 Lighting device 25 Radio interface 26 Cover 27 Alarm transmitter 28 Sunshade 29 Chassis 30 Handle

Claims

1. Child carriage (1) with an accommodating space (2) for a child, with an intermediate floor (3) for carrying the child, with an underfloor space (4) which is arranged on the side of the intermediate floor (3) opposite the accommodating space (2), and wherein the child carriage (1) has an electric ventilation device (5) by means of which a carbon dioxide content in the child carriage (1) can be lowered, characterized in that the ventilation device (5) comprises a suction device by means of which carbon dioxide exhaled by the child can be sucked out of the child carriage (1), and the ventilation device (5) is arranged in an outer wall (10) and / or in a child carriage floor (11) of the child carriage (1), so that a connection to the surroundings is established, so that the sucked-out carbon dioxide can be released to the surroundings.

2. The child carriage according to the preceding claim, characterized in that the ventilation device (5) is arranged in the region of the underfloor space (4) and / or in the region of the accommodating space (2).

3. The child carriage according to one or more of the preceding claims, characterized in that the ventilation device (5) comprises a ventilation device by means of which fresh air can be blown into the underfloor space (4) and / or into the accommodating space (2).

4. The child carriage according to one or more of the preceding claims, characterized in that the child carriage (1) has at least one carbon dioxide sensor (8) for measuring the carbon dioxide content in the child carriage (1), which is arranged in the underfloor space (4) and / or accommodating space (2).

5. The child carriage according to one or more of the preceding claims, characterized in that the ventilation device (5) comprises at least one electric fan (9) which is arranged in an outer wall (10) of the underfloor space (4).

6. The child carriage according to one or more of the preceding claims, characterized in that the intermediate floor (3) and optionally a mattress (12) arranged on the intermediate floor (3) is air-permeable, so that the carbon dioxide can flow from the accommodating space (2) into the underfloor space (4).

7. The child carriage according to claim 6, characterized in that the intermediate floor (3) has first through-openings (13) and optionally the mattress (12) is formed at least partially from an air-permeable material and / or has second through-openings (14).

8. The child carriage according to one or more of claims 6 and 7, characterized in that the mattress (12) has a padding layer (15) with the second through-openings (14) and preferably at least one cover layer (16) arranged above and / or below the padding layer (15).

9. The child carriage according to one or more of the preceding claims, characterized in that the child carriage (1) has a presence sensor (7) for detecting a child lying in the accommodating space (2).

10. The child carriage according to one or more of the preceding claims in combination with claim 6, characterized in that the mattress (12) has a pressure plate (17) corresponding to a pressure sensor as the presence sensor (7).

11. The child carriage according to one or more of the preceding claims, characterized in that the child carriage (1) comprises a breathing sensor (19) for capturing breathing pauses of the child and / or that the child carriage (1) has a temperature sensor (18) for capturing the temperature present in the accommodating space (2).

12. The child carriage according to one or more of the preceding claims, characterized in that the child carriage (1) has a control unit (6) which is designed such that it can automatically activate and deactivate the ventilation device (5) and / or an alarm device (27) in dependence on the carbon dioxide content measured by the carbon dioxide sensor (8), in dependence on the presence of the child captured by the presence sensor (7), in dependence on a breathing pause captured by the breathing sensor (19) and / or in dependence on a temperature captured by the temperature sensor (18).

13. The child carriage according to one or more of the preceding claims, characterized in that the child carriage (1) comprises an operating element (20) by means of which the ventilation device (5) can be manually activated and deactivated, and / or the child carriage (1) comprises a display for displaying a value captured by at least one sensor (7, 8, 18, 19).

14. The child carriage according to one or more of the preceding claims, characterized in that the child carriage (1) has an energy store (21) by means of which at least the electric ventilation device (5) can be operated, and / or the child carriage (1) has at least one solar unit (22) by means of which at least the electric ventilation device (5) can be operated and optionally the energy store (21) can be charged.

15. The child carriage according to one or more of the preceding claims, characterized in that the child carriage (1) has a heating unit (23) which is arranged on the intermediate floor (3) and / or is arranged such that air heated by the heating unit (23) can be blown into the accommodating space (2) by means of the electric ventilation device (5), and / or the child carriage (1) has a radio interface (25).