DE202011052228U1 - Battery operated lighting device with holder - Google Patents

Abstract

Battery-operated lighting device (100) with a basic housing (110) into which at least two button-cell batteries (B1, B2) can be inserted in series, and with a light-emitting element (LED) arranged at one end of the basic housing, which is electrical is connected to the at least two button cell batteries (B1, B2) via at least one electrical circuit (VC, CTR) which is arranged on a printed circuit board (PCB), characterized in that the printed circuit board (PCB) in the basic housing (110) with a first surface (F1) of an end face of one of the button cell batteries is arranged and with a second surface (F2) is arranged facing the light-emitting element (LED).

Description

The invention relates to a battery-powered lighting device, which is used individually or in several for decorative lighting purposes and in particular for the illumination of decorative illuminated from inside hollow bodies. In particular, the invention relates to a coin cell operated lighting device to decorative hollow bodies, such. B. transparent or partially transparent Christmas tree balls, can be attached.

Such battery powered and therefore wireless electric lighting devices are increasingly being offered and used as artificial space or Christmas tree decorations. Frequently, light-emitting diodes (LEDs) are used as light sources, since they have a low power consumption. In addition, by selecting and controlling the LEDs, numerous light and color effects can be achieved.

From the Chinese utility model application CN 201249617 For example, a battery powered lighting device is known that is formed as an internally illuminated Christmas tree ball. The device has a base housing that houses a plurality of coin cell batteries connected in series. In addition, the device has a light-emitting diode (LED) and a protruding into the interior of the Christmas tree in the circuit board with an electrical control circuit. For power supply several button cell batteries are used. In addition, the battery-powered lighting device is provided with a holder, so that these z. B. can be attached to a tree branch.

Accordingly, a battery-operated lighting device is known, which has a base housing, in which at least two button cell batteries are connected in series, wherein at one end of the base housing, a light emitting element, namely a light emitting diode (LED) is arranged, which electrically the at least two button cell batteries are connected via at least one electrical circuit which is arranged on a printed circuit board. In the lighting device, the light element projects far into the interior of the hollow body (Christmas tree ball) to be illuminated, thus ensuring a supposedly central illumination of the same. However, the LED emits its light in a downward angle or light cone, so that no uniform illumination of the hollow body can be achieved; the upper area is illuminated only very weakly or not at all. Also, the dimensions of the known lighting device are quite large. It would be desirable to have a much more compact and improved lighting design.

It is therefore an object of the invention to provide a constructive solution for a battery-operated lighting device, in particular for a Christmas tree ball, which overcomes the above-mentioned problems in an advantageous manner.

In particular, the proposed battery-powered should have a compact design, which also simplifies handling.

The object is achieved by a battery-powered lighting device having the features of claim 1.

Accordingly, a construction is proposed for a battery-operated lighting device in which the printed circuit board is arranged in the basic housing with a first surface (eg underside) facing the front side of one of the button cell batteries and with a second surface (upper side). The light emitting element is arranged facing. Thus, the circuit board extends within the base housing parallel to the end face of the button cell batteries and is thereby completely integrated into the base housing. The circuit board is in this case between the light-emitting element and the batteries and can thus be adapted to the contact with the batteries or with the / the light-emitting element (s) on the two circuit board surfaces (bottom and top). In addition, the circuit board forms the bottom of the battery compartment with respect to the batteries; with respect to the / the lighting elements (s), the circuit board forms the carrier or motherboard.

Advantageous embodiments of the invention will become apparent from the dependent claims.

Accordingly, it is advantageous if the circuit board is bordered at its side edges in the basic housing. As a result, the printed circuit board forms a partition between the battery compartment and the illuminant area.

The printed circuit board preferably has at least one contact element on its first surface (underside) for an electrical connection to one of the batteries. Thus, a contact between the batteries and the circuit board is made directly.

It is also advantageous if the printed circuit board on its first surface and / or second surface contact surfaces for the application of electronic components, in particular SMD components having. Preferably, these are the following components: light-emitting diodes, resistors, capacitors, voltage regulators, control chip, and / or sensor (s). The light-emitting diode can also be designed as a multi-colored light-emitting diode unit, in particular as a light-emitting diode unit provided with at least two light-emitting diode elements. To control the LEDs, preference is given to using infrared sensors, daylight sensors or acoustic sensors.

The battery-operated lighting device is preferably provided with a cap-shaped cover which is rotatably arranged on the base housing. Switching elements are advantageously arranged on the rotatably arranged lid in order to close or open the circuit between the batteries and the printed circuit board by turning the lid. As a result, an on and off function for the lighting device can be realized very user-friendly.

Also, a holder for fixing the lighting device may be arranged on the lid, wherein the holder is designed as an actuating element for rotating the lid. The holder thus has a multiple function, namely attaching the device z. B. on a tree branch and switching on and off the device or enable / disable the electronics.

In a preferred embodiment, a reflector and / or a receptacle for the luminous element is arranged in the base housing. Thus, despite a compact design, a good interior illumination of the hollow body can be ensured.

The base housing preferably has at least one fastening element, in particular a plurality of metal spring rods or plastic hooks, in order to fasten a hollow body (eg a Christmas tree ball) to the illumination device. In addition, the base housing may have at least one holding and contact element for the batteries.

The invention and the resulting advantages will be further illustrated by the following detailed description of exemplary embodiments. Reference is made to the attached schematic drawings, which show the following:

1 shows in a cross-sectional view of the structure of a lighting device according to a first embodiment of the invention;

2a / b show three-dimensional views outside views of the lighting device after 1 ;

3 shows in a cross-sectional view the construction of a lighting device according to a second embodiment of the invention;

4a / b show three-dimensional views outside views of the lighting device after 3 ;

5a -C show in various illustrations the structure of a lighting device according to a third embodiment of the invention;

6a -E show in various representations the structure of the main body of the lighting device;

7a -D show in various illustrations the structure of the printed circuit board of the lighting device;

8th shows the circuit diagram for a realized on the circuit board first circuit for driving the LED;

9 shows the circuit diagram for a realized on the circuit board second circuit for driving the LED; and

10 shows the circuit diagram for a realized on the circuit board third circuit for driving the LED;

The 1 shows the construction of a lighting device 100 according to a first embodiment of the invention. The lighting device 100 has a pot-shaped base housing 110 in which a plurality of series-connected button cell batteries B1 and B2 are accommodated. Moreover, in the front part of the basic housing 110 a luminous element integrated in the form of a light emitting diode LED. Between the light emitting diode LED and the batteries B1 and B2, a printed circuit board PCB is arranged so that a first surface F1 (lower side) of the printed circuit board faces the upper end side of the battery B1. A second surface F2 (upper side) of the printed circuit board is arranged facing the light emitting diode LED. Thus, the circuit board is located within the base housing between the power supply and the lighting element, wherein the circuit board PCB extends parallel to the front side (flat side) of the batteries. This construction is very compact and space saving. For contacting, the printed circuit board PCB on its underside F1 on a contact element CT in the form of a conductive coil spring, which makes electrical contact with the positive terminal of the battery B1. The printed circuit board PCB can have electronic components and assemblies on both surfaces F1 and F2, which provide intelligent control of the LED. Preferably, the electronic components are formed as SMD (Surface Mounted Devices) and can be applied directly to the surfaces F1 and F2. These components are for simplicity the drawing is not shown here, but will be later on the basis of 8th - 10 described in detail.

The 2a and 2 B show in three-dimensional representations of external views of the lighting device 100 , where the 2a the basic housing 110 without lid shows. As can be seen there, the base housing on a holding and contact element for the batteries B1 and B2, which closes the battery compartment towards the lid. On the other side, the printed circuit board PCB closes the battery compartment (see also 1 ). The 2 B shows the device with lid 120 which is rotatable on the base housing 110 is appropriate. At the front end of the basic housing, the light emitting diode protrudes slightly, wherein the light-emitting diode LED can also comprise a plurality of different colored LED units. There is also a reflector 111 provided to reinforce the illumination of the hollow body to be mounted there. The device 100 can be connected by various types with a hollow body (eg Christmas tree ball), such as. B. by gluing and / or mechanical connection (click connection, screw etc.).

The 3 such as 4a / b show as another embodiment, a lighting device 100 ' equipped with fasteners in the form of two metal spring rods 115 equipped, which serve for fastening a hollow body. As a light-emitting element, a simple light-emitting diode LED 'is provided. The lid 120 is rotatable on the base housing 110 attached and has switching elements, so that by turning the lid (see arrows in 4b ) the circuit between the batteries and the printed circuit board can be closed (position I) or opened (position II). The on the lid 120 attached bracket 121 also serves as an actuator for rotating the lid.

The 5a C show yet another embodiment of a lighting device. This lighting device 100 '' is with fasteners in the form of several plastic hooks 117 equipped, which serve for fastening a hollow body and can produce a click connection. As a light element here is also a simple LED 'LED provided. The lid 120 is rotatable and thus serves as a rotary switch for switching on and off the lighting or for activating and deactivating the electronics.

The 6a -E show in various representations and sectional views of the structure of the main body of the lighting device, wherein the 6e shows that in the main body a shot 112 may be arranged for the luminous element to fix the luminous element and align.

The 7a -D show in various representations the structure of the printed circuit board of the lighting device. On the first surface F1 contact surfaces KF and / or components may be appropriate, which serve in particular for the provision of the power supply. On the second surface F2 contact surfaces for the light emitting diode may be mounted and / or components attached, which serve in particular for the control of the LED serve to provide the power supply. The LED or their housing, in addition to the actual LED unit L1 and another unit, such. B. have a sensor S *. Thus, lighting function and sensor function is combined in the LED housing. Alternatively, a second LED unit L2 may also be integrated in the housing so as to form a composite LED which can emit differently colored light. On the PCB PCB SMD components are preferably applied, resulting in a very compact and inexpensive construction. As sensors all types of sensors can be used, such. B. radio or radio sensors, heat (IR) sensors; Light sensors, acoustic sensors, magnetic sensors, mechanical sensors (for shock or tilting movement, position [vertical / horizontal], air pressure) etc.

Based on 8th - 10 Now examples of circuits that can be realized with SMD components on the PCB PCB are shown:
The 8th shows the circuit diagram for a first circuit for driving the LED LED. This circuit includes a voltage regulator VC which controls the battery voltage of e.g. B. 6 volts (2 × 3 volts) to an output voltage of 3 volts or less reduced to operate the light emitting diode LED. In addition, a sensor S and a controller CTR are provided, which controls the LED as a result of the sensor signals in order to regulate the luminous intensity.

The 9 shows the circuit diagram for a second circuit for driving a multi-colored LED LED *. Again, a voltage regulator VC is provided, the battery voltage of z. B. 6 volts (2 × 3 volts) reduced to an output voltage of 3 volts or less. Likewise, a sensor S and a control CTR are provided which, based on the sensor signals, actuate the light-emitting diode LED * in order to regulate not only the luminous intensity but also the coloration of the light. Again, the circuit via the sensors, z. B. be activated and controlled by IR signals (IR remote control). In particular, the LED * can be operated with different modes, such as. B. automatic light color change and / or brightness change (eg. time-controlled). Also, the light color change and / or the brightness change can be controlled by manual emission of signals:
Pressing the ON button on the remote control (not shown) turns on the LED * LED. The color changes automatically (auto mode) z. B. every 10 seconds, with between z. B. 7 color schemes is changed. By further pressing the ON button, the color change can be manually triggered (manual mode). When the ON button is pressed for the first time, the LED * changes to the color red; on the second press on the color green; on the third press on the color blue; the fourth time you press the color pink; on the fifth press on the color yellow; at the sixth press on the color cyan; and the fifth time you press the color yellow; the seventh press on the color white. If the ON button is then pressed again, the controller returns to the auto mode.

The 10 shows the circuit diagram for a third circuit for driving the LED LED, which is dispensed with sensor and control. Only a voltage regulator VC ensures that the battery voltage of z. B. 6 volts to an output voltage of 3 volts or less is reduced. The switching on and off of the LED LED z. B. via a rotation of the lid 121 (see turning arrows in 4b ), wherein the position II means "OFF" and the position I means "ON". The rotary switch can also be used to switch between two modes.

In the in 8th and 9 As shown, the light emitting diode LED or LED * is supplied not only by the voltage regulator VC (see connection line 3 "Out") but also by the control chip CTR (see connection line 1 "VDD"). Thus, the LED receives a double fused power supply, which achieves more stability and in particular prevents flickering. Also, the operating time is significantly increased to at least 40 hours and more. In addition, the sensor S is supplied by the control chip CTR (see connection line 6 "Pow-o") and thus receives its own power supply, which further improves the aforementioned effect.

The described invention provides a very compact and user-friendly construction for a lighting device which can be used for a wide variety of hollow bodies, in particular for illuminated balls or figures.

LIST OF REFERENCE NUMBERS

100

Illumination device for hollow bodies, in particular Christmas tree balls

100 ', 100' '

other variants of lighting devices

LED

Luminous element (light-emitting diode or translucent plastic with integrated light-emitting diode)

LED ', LED *

other variants of LEDs

L1, L2

Light-emitting elements

S *

Sensor element (integrated in LED housing)

B1, B2

Button cell batteries

CT

Contact element (spiral spring)

PCB

Printed circuit board with surface F1 (underside) and surface F2 (upper side) and side edges K

110

Basic housing (cup-shaped)

111

reflector

112

Recording for LED

120

Lid (rotatable) with holder 121

122

Holding and contact element for battery (s)

B1, B2

Button cell batteries

CT

Contact element (spiral spring)

PCB

Printed circuit board with surface F1 (underside) and surface F2 (upper side) and side edges K as well as contact surfaces KF

VC

voltage regulators

CTR

Control chip

S

sensor

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been 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.

Cited patent literature

• CN 201249617 [0003]

Claims (13)

Battery Operated Lighting Device ( 100 ) with a basic housing ( 110 ), in which at least two button cell batteries (B1, B2) are connected in series, and with a arranged at one end of the base housing light emitting element (LED) electrically connected to the at least two button cell batteries (B1, B2) via at least an electrical circuit (VC, CTR) is arranged on a printed circuit board (PCB), characterized in that the printed circuit board (PCB) in the basic housing (PCB) 110 ) is arranged facing a first surface (F1) of an end face of one of the button cell batteries and arranged with a second surface (F2) facing the light-emitting element (LED). Battery Operated Lighting Device ( 100 ) according to claim 1, characterized in that the printed circuit board (PCB) at its side edges (K) in the basic housing ( 110 ) is enclosed. Battery Operated Lighting Device ( 100 ) according to claim 1 or 2, characterized in that the printed circuit board (PCB) has on its first surface (F1) at least one contact element (CT) for electrical connection to one of the batteries (B1). Battery Operated Lighting Device ( 100 ) according to one of the preceding claims, characterized in that the printed circuit board (PCB) on its first surface (F1) and / or second surface (F2) contact surfaces (KF) for the application of electronic components, in particular of SMD components comprises. Battery Operated Lighting Device ( 100 ) Claim 4 that the components comprise at least one of the following components: light emitting diode (LED), resistor, capacitor, voltage regulator (VC), control chip (CTR), and / or sensor (S). Battery Operated Lighting Device ( 100 ) Claim 5, that the light emitting diode (LED) is a multi-colored light-emitting diode unit, in particular with at least two light-emitting elements (L1, L2) provided light-emitting diode unit. Battery Operated Lighting Device ( 100 Claim 5 or 6, that the sensor (S) is an infrared sensor, daylight sensor, an acoustic sensor, a radio sensor, a magnetic sensor or a mechanical sensor. Battery Operated Lighting Device ( 100 ) according to one of the preceding claims, characterized in that on the basic housing ( 110 ) a cap-shaped lid ( 120 ) is rotatably arranged. Battery Operated Lighting Device ( 100 ) Claim 8, that on the rotatably mounted lid ( 120 ) Switching elements are arranged to by turning the lid ( 120 ) to close (I) or open (II) the circuit between the batteries (B1, B2) and the printed circuit board (PCB). Battery Operated Lighting Device ( 100 ) according to claim 8 or 9, characterized in that on the lid ( 120 ) a holder ( 121 ) for fixing the lighting device ( 100 ) is arranged, wherein the holder ( 121 ) as an actuating element for rotating the lid ( 120 ) is trained. Battery Operated Lighting Device ( 100 ) according to one of the preceding claims, characterized in that on the basic housing ( 110 ) a reflector ( 111 ) and / or a recording ( 112 ) is arranged for the light-emitting element (LED). Battery Operated Lighting Device ( 100 ) according to one of the preceding claims, characterized in that the basic housing ( 110 ) at least one fastening element, in particular metal spring bars ( 115 ) or plastic hooks ( 117 ), for attaching a hollow body to the lighting device ( 100 ) having. Battery Operated Lighting Device ( 100 ) according to one of the preceding claims, characterized in that the basic housing ( 110 ) at least one holding and contact element ( 122 ) for the batteries (B1, B2).

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