DE202021104113U1 - Charging station for electric bicycles - Google Patents

Abstract

Charging station for battery-operated electric bicycles, scooters or the like, which has:
- a housing (6),
- A through opening (12) attached to the outside of the housing (6) for inserting a bicycle lock,
- A storage space (20) which is formed in the housing (6) and can be closed by a door (14), which is designed to accommodate a battery charger (49) and a battery connected to it and in which at least one junction box (24) for delivery electrical supply power to the battery charger (49) is arranged, characterized in that
- The storage space (20) is equipped with a ventilation device for heat dissipation, which has an air supply opening (29) on the bottom (28) of the storage space (20) leading out of the housing (6) and an air discharge opening (23) likewise leading out of the housing (6) ) on the ceiling (22) of the storage space (20).

Description

The invention relates to a charging station for battery-operated electric bicycles, scooters or the like, which has a housing, a through opening attached to the outside of the housing for passing through a bicycle lock, and a storage space formed in the housing, which can be closed by a door and which is used to accommodate a battery Charger and a battery connected to it is designed and in which at least one junction box for delivering electrical power to the battery charger is arranged.

From the DE 102010048338 A1 a parking system for electric bicycles is known in which the batteries of the bicycles can be connected via cables and the bicycles can be locked at the same time. the DE 202011050128 U1 discloses a collapsible bicycle box into which an electric bike can be pushed and which offers a charging option for the electric bike. the DE 202012001450 U1 discloses a plurality of bicycle stands, a compartment which can be locked with a door and into which the battery of a bicycle can be inserted for charging is provided above each bicycle stand. One of the principle of DE 102010048338 A1 The following bicycle parking facility is also from the AT 508326 A2 or the DE 202012104011 U1 known.

These prior art devices have various disadvantages, in particular with regard to the reliable charging of the drive battery of electric bicycles.

The invention is based on the object of specifying an improved device with which rechargeable batteries can be charged reliably.

The invention is defined in claim 1. The subclaims relate to preferred developments.

There is a charging station for battery-operated two-wheelers, such as electric bicycles, scooters or the like, which has a housing. On the outside of the housing there is a feed-through opening through which a bicycle lock can be inserted to lock the two-wheeler. A storage space is formed in the housing, which is closed and can be closed by a door. It is designed to accommodate a battery charger and a drive battery connected to it for the electric bicycle or the like. In the storage space there is at least one junction box for delivering electrical power to the battery charger. The storage space is designed in such a way that a user accommodates his battery together with the associated battery charger in the lockable storage space, connects the battery charger to the junction box and in this way can charge the drive battery with the battery charger brought along.

Since such charging processes are temperature-critical processes in modern batteries, the storage space is equipped with a ventilation device for heat dissipation. This comprises at least one air supply opening on the floor of the storage space and an air discharge opening on the ceiling of the storage space. Both openings naturally lead to the exterior of the housing. In this way, a chimney effect can be achieved which, by means of passive ventilation, realizes a high level of air passage through the storage space and thus ensures heat dissipation.

The design of the supply openings on the floor and on the ceiling is preferably such that they are formed in the floor and in the ceiling of the storage space, for example through slots, which are preferably protected against the ingress of dirt or pests etc. with a protective grille. However, the term “on” the floor or the ceiling is not restricted to the fact that the air supply openings must be formed in the floor or ceiling, even if this is particularly advantageous in terms of ventilation. Since the air supply openings are basically designed in such a way that they promote a chimney effect to ventilate the storage space, it is equally possible not to form the ventilation openings directly in the floor or ceiling, but in a strip of a side wall adjacent to the floor or ceiling. The strip preferably extends over a maximum of one third of the interior height of the storage space. Also, the term “floor” and “ceiling” need not refer to the bottom or top of the housing. As a rule, it is even the case that the storage space has a floor and a ceiling which are above or below the bottom or top of the housing. On the one hand, this facilitates the weather-protected supply of the air to the air supply openings or the removal of the air from the air discharge opening. On the other hand, a space is created in which cabling etc. can be provided.

The invention enables reliable charging of the drive batteries under normal ambient conditions. This applies in particular to modern batteries that have their own battery management and prevent the charging process at unsuitable temperatures. In the prior art, such properties have regularly led to the fact that in summery environments there was actually insufficient charging. This is very unfortunate for a user if he parks his electric bike for a certain period of time, for example during a visit to a restaurant or a stroll through town, and assumes that the drive battery will be fully charged again when he comes back. If this This was very annoying for the user because of internal temperature monitoring of the battery management system.

The design of the ventilation device according to the invention prevents such malfunctions. Equally, it achieves fast charging of the drive battery even with batteries without battery management, since batteries can be charged particularly reliably and quickly in the temperature range guaranteed by the ventilation device.

The ventilation device can be designed in many ways. Particularly preferably, the ventilation device is configured in such a way that at an outside temperature of 35 ° C and an electrical supply power that is supplied to the battery charger of 1 kW in the storage space, a temperature of 55 ° C is not exceeded.

Optionally, an electric fan for forced air circulation can also or alternatively be arranged. Operation of the fan is expediently blocked by means of a door switch as long as the door is not locked. This means that the fan does not start until the storage space has been locked.

Furthermore, a thermostat switch is preferred which switches on the fan only above a minimum temperature in the storage space. This achieves energy-saving operation and extends the service life of the fan, as it only runs when there is a need for ventilation.

To use the charging station in cold climates as well, it is preferred to design the part of the housing that delimits the storage space with thermal insulation, for example double-walled and possibly also with an insulating material in the double wall.

Additionally or alternatively, the ventilation device can also have a Peltier element that promotes the dissipation of heat. It can be operated as heating or cooling, depending on the temperature conditions. For particularly cold zones, it is also preferable to provide electrical heating with a fan and thermostat in the storage space. This ensures reliable and fast charging of the drive battery even in low ambient conditions.

In order to reduce the risk of a battery fire, the inside of the storage box is preferably lined with a fire-retardant lining in such a way that a fire protection class of F40 is achieved, preferably F60 or F90. Additionally or alternatively, a smoke or fire alarm can be arranged in the storage space.

To secure the battery and the battery charger, it is preferred to provide the door with a lock. This can be designed as a deposit or cashier lock, whereby the charging process can also be paid for via the cashier lock. Other locks, e.g. B. combination locks or locks that can be controlled by radio (e.g. cell phone) are equally possible. Of course, an electricity meter and / or a device for paying for the electricity drawn or to be drawn can be provided in the storage space.

The junction box is preferably protected by an automatic circuit breaker and a residual current circuit breaker. It can be operated in such a way that it is de-energized when the door is open or the lock is not closed. This increases operational safety.

In residential complexes in particular, where users frequently pass the charging station to which their bicycle is connected and the drive battery is being charged, it is preferable that the charging station has a charging indicator that is visible on the outside of the housing and that shows, for example, in green, that the drive battery is charged and a malfunction or the end of the charging process are signaled in different colors.

There are drive batteries that are permanently installed in the bike. For such cases it is preferred if a cable bushing is provided in the area of a door edge so that the battery charger can be connected and deposited in the storage space, and the line from the battery charger to the vehicle can be led through the cable bushing. Such a cable bushing can be formed, for example, by a bevel on a door edge, for example the lower edge of the door. The entire edge should be beveled. In addition, a seal, in particular a brush seal, is preferably provided, which makes it difficult for vermin to gain access to the storage space. For this reason, it is also preferred that the ventilation openings are provided with appropriate protective grids. In addition, the ventilation openings are also designed in such a way that they are protected from heavy rain or splashing water, for example by appropriate gill covers and / or ventilation labyrinths.

In order to prevent a charger from finding unfavorable thermal conditions due to items of clothing, backpacks etc. stored in the storage space, it is preferred to provide an additional storage compartment or shelf for the charger in the storage space. This reduces the risk of fire from an overheated charger and ensures reliable cooling of the charger when the storage compartment is connected to the ventilation device, for example by means of a suitable air passage.

The at least one junction box is preferably connected to a switching electrical system which can be switched on and off remotely and / or which can be programmed according to a timer.

The connection socket is preferably a normal 230 V mains socket. Other connections, in particular USB connections, are equally possible as alternatives or in addition.

It goes without saying that the features mentioned above and those yet to be explained below can be used not only in the specified combinations, but also in other combinations or on their own, without departing from the scope of the present invention.

• 1 eine perspektivische Darstellung einer Doppel-Ladesäule für Elektrofahrräder,
• 2 eine perspektivische Darstellung einer der Ladesäulen der 1,
• 3 eine Darstellung ähnlich 2 aus einem anderen Betrachtungswinkel,
• 4 vier verschiedene Ansichten der Ladesäule der 1,
• 5 eine Detailansicht einer Kabeldurchführung an der Ladesäule, und
• 6 und 7 perspektivische Ansichten eines Innenraums der Ladesäule.

The invention is explained in more detail below on the basis of exemplary embodiments with reference to the accompanying drawings, which likewise disclose features that are essential to the invention. These exemplary embodiments are used for illustration purposes only and are not to be construed as restrictive. For example, a description of an exemplary embodiment with a large number of elements or components should not be interpreted to the effect that all of these elements or components are necessary for implementation. Rather, other exemplary embodiments can also contain alternative elements and components, fewer elements or components, or additional elements or components. Elements or components of different exemplary embodiments can be combined with one another, unless otherwise stated. Modifications and variations which are described for one of the exemplary embodiments can also be applied to other exemplary embodiments. To avoid repetition, elements that are the same or that correspond to one another are denoted by the same reference symbols in different figures and are not explained more than once. From the figures show:

• 1 a perspective view of a double charging station for electric bicycles,
• 2 a perspective view of one of the charging stations of FIG 1 ,
• 3 a representation similar 2 from a different angle,
• 4th four different views of the charging station 1 ,
• 5 a detailed view of a cable duct on the charging station, and
• 6th and 7th perspective views of an interior of the charging station.

1 shows an electric bike 1 at a double charging station 2 is turned off. This double charging station 2 consists of two individual charging stations 3 , 4th which are identical in nature, but are mirrored. The following is an example of the charging station 4th described. It has a housing 6th They are designed as a double charging station 2 with the charging station 3 Splits. On the housing 6th is a bike holder 8th attached to the holding means, for example a rail 9a and a slot 9b is designed in the manner of a bicycle stand of a known type. On the housing 6th is a sidewall 10 attached to a bicycle 1 can be ajar. The side cheek 10 has at least one opening 12th , through which a bicycle lock can be passed to a on the bicycle holder 8th parked bike 1 to be connected and secured with a conventional bicycle lock.

At the front of the case 6th there is a door 14th which opens to a storage space, which will be explained later. The door 14th is with a lock 15th locked. Above the door 14th can be found on the housing 6th a charge indicator 16 that shows whether charging is taking place in the storage space. As will be explained, the drive battery of the bicycle is used for such a charging process 1 and the associated battery charger are placed in the storage space and the charger is electrically connected there to charge the battery.

For cases in which the drive battery is permanently installed on the bike or should not be removed for other reasons, is on the door 14th a feed-through slot designed as a cable feed-through. It preferably extends over the entire length of the lower edge of the door 14th . It is designed in such a way that a cable between a battery charger located in the storage space and the one from the bicycle 1 drive battery that has not been removed can be carried out in order to be able to charge the drive battery in such cases.

the 2 and 3 show the charging station 4th perspective from different viewing angles. The door 14th is open so that you can get into the storage space 20th can see.

It can be seen that in the storage space 20th There is not only space for a charger and a drive battery, but also for other accessories such as a helmet hook 25th is provided. The storage space 20th is inside the case 6th formed, but usually does not necessarily take up the entire internal volume of the housing 6th a, so that there are still other areas / rooms that z. B. for cabling or air routing, etc. are used. In the storage space 20th are two sockets 24 provided, via which one or two chargers can be connected. It is a matter of conventional 230 V sockets. You are through a residual current circuit breaker 26th secured.

To dissipate the resulting heat and reliable temperature management for the charging station 4th to reach, this has a perforated base 28 that with a base 30th the charging station 4th connected in such a way that fresh air can enter from outside. In the upper area 32 of storage space 20th Air discharge openings are formed through which heated air can escape. The air intakes in the floor 28 are below the air discharge openings in the upper area 32 so that when heat is generated in the storage space 20th a chimney effect sets the air through the storage space 20th transported and thus a charger arranged there and a battery arranged there cools. Additionally or alternatively, an electric fan (not shown) can also be provided, which can also work in a temperature-controlled manner, for example.

At the doorway of the door 14th is a closing switch 34 arranged, who recognizes whether the lock 15th closed is. Only then will the sockets 24 supplied with voltage. This means that charging is only possible when the door is closed and locked. To close the door 14th To make it easier, a magnet holder is also required 36 provided, which ensures that the door 14th even if the lock is not locked 15th remains reliably closed. This is the condition when the charging station 4th is not used. Of course, the door hinges are 38 burglar-proof.

As in 3 and 4th seen is the bottom edge of the door 14th with a bevel 40 provided that ensures that one through the slot 18th The routed cable is not squeezed. There is also a brush seal 42 present that the slot 18th seals against vermin etc. As seen from the top left and right illustrations of the 4th can also be seen that the exhaust air opening is located 46 at the rear of the charging station 4th . This is of course optional. However, it is preferred that it lies on the top in order to ensure the chimney effect mentioned. Also in the top row in the middle is the 4th another fan 48 to recognize which is switched on depending on the temperature to support the chimney effect when a charging process takes place.

The fold 40 is also in 5 good to see. There you can also see that the floor 28 a corresponding counter bevel 41 has so that a cable 48a that from a charger 49 should be led to the outside, cannot be squeezed. Next shows 5 also that all housing parts with a ground 50 are provided.

The charging station 4th Its construction creates a temperature environment for charging the battery that ensures reliable charging. Due to their cell construction and cell chemistry, drive batteries for electric bicycles are tied to certain framework conditions with regard to temperatures. The temperature limits specified by the manufacturer for storage, operation and charging are set by the charging station 4th adhered to. In particular, this also prevents an internal battery management system of the rechargeable battery from preventing a charging process at charging temperatures that are not above 5 ° C or 0 ° C and not below 30 ° C or 45 ° C or 55 ° C.

In order to be able to maintain the temperature conditions particularly easily, it is preferred that the housing 6th is light on the outside, in particular has a color with a lightness reference value of 50 or higher.

The charging station 4th creates a flow of air from the bottom up in the storage space 20th through a chimney effect. This has the advantage that the more heat it emits in the storage space 20th increases, so an additional cooling is generated. The air flow can be through a fan which, depending on the fan characteristics, works either in suction mode and then in the upper area 32 of storage space 20th is arranged, or works in blow mode and then in the lower area of the storage space 20th be supported.

In addition, it is optionally provided that in the upper area 32 of storage space 20th a storage compartment 44 is arranged on which the charger 49 can be arranged. This prevents the charger from overheating, even if there is no storage space 20th is very fully loaded with other items such as jackets, rucksacks, etc.

This storage compartment 44 is in the 6th and 7th easy to see, which also show how the air supply on the floor through the slots provided there 29 and the air outlet on the ceiling 22nd through slots provided there 28 , 23 he follows. The floor 28 or the ceiling 22nd are connected to the outside of the housing via appropriate channels, which are designed to be weatherproof, so that the chimney effect, which is advantageous for cooling, is guaranteed.

As the 6th and 7th also show the shelf is flat 44 designed in such a way that it does not interfere with the chimney effect or does not significantly interfere with it. For this purpose, it is designed with ventilation slots, for example. Furthermore, it is alternatively or additionally only over a partial cross-section of the storage space 20th extends so that a cross section of at least a third, preferably half of the storage space below the ceiling 22nd not from the storage compartment 44 is covered. In the in the 6th and 7th shown construction is that Storage compartment 44 executed at an angle and has a safety edge on its front, lower edge 45 so that the charger 49 not from the sloping storage compartment 44 can slip.

In a further development, a DIN charging socket for electric batteries can also be installed, then the charging station has an additional power supply unit that supplies the charging socket, which can either be inside the storage space or outside, for example in the area of the charge indicator 16 .

The structure corresponds in particular to DIN IEC / TS 62916 and DIN IEClTS 61851-3 , in each case in the version valid on August 1st, 2021.

There is preferably a fire brigade main switch that switches off the entire charging station and any other charging stations that are electrically connected to the charging station.

The charging column also preferably has an electrical overvoltage protection device in order to prevent damage to the charger and / or battery in the event of overvoltages, for example lightning strikes in the vicinity, etc.

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• DE 102010048338 A1 [0002]
• DE 202011050128 U1 [0002]
• DE 202012001450 U1 [0002]
• AT 508326 A2 [0002]
• DE 202012104011 U1 [0002]

Non-patent literature cited

• DIN IEC / TS 62916 [0042]
• DIN IECTS 61851-3 [0042]

Claims (12)

Charging column for battery-operated electric bicycles, scooters or the like, which has: - a housing (6), - a feed-through opening (12) attached to the outside of the housing (6) for passing through a bicycle lock, - one formed in the housing (6) through a door (14) lockable storage space (20) which is designed to accommodate a battery charger (49) and a battery connected to it and in which at least one junction box (24) for delivering electrical power to the battery charger (49) is arranged , characterized in that - the storage space (20) is equipped with a ventilation device for heat dissipation, which has an air supply opening (29) leading out of the housing (6) on the bottom (28) of the storage space (20) and one likewise from the housing (6) ) has leading air discharge opening (23) on the ceiling (22) of the storage space (20). Charging station after Claim 1 , characterized in that the ventilation device is configured so that at an outside temperature of 35 degrees C and an electrical supply power of 1,000 W in the storage space (20), a temperature of 55 degrees C is not exceeded. Charging station after Claim 1 or 2 , characterized in that the ventilation device has at least one electric fan (48) for forced air circulation. Charging station after Claim 3 , characterized by a door switch (34) which prevents the fan (48) from being switched on as long as the door (14) is not closed. Charging station after Claim 3 or 4th , characterized by a thermostat switch which switches on the fan (48) only above a minimum temperature in the storage space (20). Charging column according to one of the above claims, characterized in that at least the part of the housing (6) which delimits the storage space (20) is designed with thermal insulation, e.g. B. double-walled. Charging column according to one of the above claims, characterized in that the interior of the storage space (20) is lined in such a fire-retardant manner that fire protection class F30 or better is achieved and / or that a smoke or fire alarm is arranged in the storage space (20). Charging column according to one of the above claims, characterized in that the at least one connection box (24) is de-energized when the door (14) is open. Charging column according to one of the above claims, characterized in that the door (14) is provided with a deposit or cashier lock (15). Charging column according to one of the above claims, characterized in that the junction box (24) is protected by a fault current circuit breaker (26) arranged in the housing (6). Charging column according to one of the above claims, characterized in that it has a charging indicator (16) which is visible on the outside of the housing (6). Charging column according to one of the above claims, characterized in that a cable bushing (18) for charging external batteries is formed on a door edge.

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