SE504864C2 - Battery light and lamp unit for imitation of candles - Google Patents

Abstract

A battery-light system and a lamp unit therefor. A battery light has a light body (1) in which batteries (7) are provided. A lamp unit (21) equipped with a pendulum balancing weight (45) is freely introduced through the open end (2) of the light body and placed on diametrically-opposed, recessed lamp current-supply plates (11, 12). The connecting wires (51, 52) of the incandescent lamp (41) belonging to the lamp unit (21) extend downwards on the frame element of the lamp unit to laterally-projecting, rigid suspension arms (58, 59), the contact elements of the lamp unit cooperating with the plates (11, 12). As a rigid coherent unit, the lamp unit (21) may pivot about a mounting axis defined by the contact points on the plates (11, 12). When the batteries are to be charged, the lamp unit (21) is removed, and the light body (1) is placed upside-down in a charger, the plates (11, 12) being in contact with charging electrodes.

Description

504 864 10 15 20 25 30 35 "~ .§.1 v 2 Furthermore, an object of the present invention is to provide a pivotable lamp unit suspension, thereby securing power supply through utilizing contact elements even in difficult environments.

Summary of the Invention The above and other purposes which will become apparent from the following is achieved by the inventive features which appears from the following claims. ' The basis of the invention is thus an insight in the advantageous to utilize a lamp unit as according to the invention comprises a body part with transverse to the projecting rigid storage arms with respect to tive arm end underside arranged contact means, a light bulb attached to the upper part of the body part and provided with connection wires connected to and preferably constituting said contact means, and a base attached to the underside of the body part launching means, said contacting means defining a transversely extending storage shaft about which the lamp the unit can, like a cohesive unit, swing or wobble when in use from above it is freely placed directly in a lamp holder provided with the equivalent of the lamp unit said contact means arranged current supply contact means.

A lighting system according to the invention hereby comprises electric light, a light comprising a sleeve-shaped one light body, power supply means arranged in the light body, and an end arranged at the upper upwardly open end of the light body lamp unit of the above-mentioned type, wherein said power supply contact means connected contact means are freely exposed arranged in the light body at said end, thereby forming they have a lamp holder with the equivalent of the lamp unit contact means arranged current supply contact means.

In a preferred embodiment of the invention, the candles are battery light, said power supply means comprising takes one or more rechargeable devices arranged in the light body batteries, and a charger for charging battery light is provided, which device comprises a 10 15 20 25 30 35 504 864 3 candlestick for separate reception of one or more battery light, from which the associated lamp unit has been removed, in and for charging thereof. The light spot has at each light receiving point charging contact means arranged to come into contact with the contact means in the light body of a battery light, when the light body is placed on the relevant light receiving point, which are charge contact means connected to a respective charging unit for delivery of charging current to said charging contact means and thus to the batteries of a connected light body.

The light stand of the charging device is advantageously arranged. able to receive the respective light body (thus without hearing lamp unit) upside down, especially vertically, in a hole adapted to the light body configuration, so that the light body is imparted a predetermined, to those in the hole arranged the charging contact means adapted position.

The charge contact means preferably comprises upwards converging, separately arranged contact elements, over which the contact means of the light body are brought into engagement with charge. As will be readily appreciated, such an intervention involves sliding between cooperating contact element surfaces, which ensures good electrical contact.

The holes in the light stand are advantageously continuous and so on oversized that air can flow through it and cooling rewind one for charging in a respective hole cerat battery light. If additional cooling in connection with charging is desirable, for example if the batteries are off nickel-metal hydride type, the charger can with advantage be placed in a cold room, where the required low temperature, for example of about 14-16 ° C, can easily maintained during charging.

Thus, in connection with charging, a battery light can simply removed from its holder, whereupon the lamp unit is removed and the rest of the battery light is placed in the device. 504 864 10 15 20 25 30 35 4 A lamp unit in accordance with the invention has part one balancing means connected to its body part, preferably of the pendant type, which gives the weight of the lamp unit point a position during the storage or pivoting of the unit axis.

The body part of the lamp unit can have a transverse direction to the opposite held projecting arms on which its contact means are It has been found advantageous here the body part of the lamp unit is generally cruciform, its arranged. contact means are arranged on the underside of the respective i transverse projecting frame arm. Mentioned above balancing means can in this case be connected to a downward body projection, while the lamp unit light bulb is connected to an upright body protrusion.

A lamp unit according to the invention can, as without It is very easy to wiggle or swing around its suspension. axis. This will ensure a relative movement between the contact means of the lamp unit and the corresponding contact organs in the associated lamp holder or candlestick, whereby exceptionally good electrical contact is also ensured in difficult environment, where for example oxidation of the contact organs would normally occur. It has been found that a lamp unit made and suspended in accordance with the present invention will very easily move as a result of shaking, air currents and the like, ie without a oscillating or rocking motion is actively created.

According to the invention, however, it is advantageous to an active, controlled oscillation or oscillation movement of the lamp unit. In view of this, lamp- the device comprises a magnetically actuatable element, preferably a permanent magnet element, means being means arranged in the lamp holder of the lamp unit or in its hearing light body under the lamp unit to periodically generate a magnetic field to magnetically affect it magnetically actuable elements and thus the lamp unit so that this is caused to periodically swing or wiggle around 10 15 20 25 30 35 504 864 sin axel.

The magnetically actuatable element is advantageous arranged position-adjustable relative to the lamp unit in general, so that the degree of magnetic exposure and thereby the lamp its oscillation amplitude becomes adjustable. This can be achieved in a preferred manner by making it magnetically actuatable the element is arranged on the above-mentioned balancing means, preferably at the bottom thereof, and the balancing means is arranged on the body part of the lamp unit rotatably about a tikal axel.

In a preferred embodiment of the invention, the lamp the device a light bulb with a piston enclosing a filament and associated filament base, from which the filament lamp closing wires protrude, as well as a downward mounting pin, with which the light bulb is attached to the body part of the lamp unit, advantageously in the case of an upwardly directed body part projection, which preferably at least at the top is tubular for reception of said mounting pin. The bulb connection wires are advantageously presented in such a way that they make the lamp unit's contact means and so that the light bulb with its associated connecting wires are easily interchangeable.

In this case, the connecting wires can advantageously be pulled down to the respective underside of the transverse projection frame arms and then outwards along the respective side, after which the connecting wires are locked upwards folded at the outer ends of the transversely projecting frame delsarmarna. As can be readily realized, one can easily, then the lamp unit is lifted out of the corresponding lamp holder or body, loosen the connecting wires from the body part and remove a broken light bulb and then invert lightly install a new light bulb. This replaces a light bulb very cheap.

In order to facilitate the correct placement of the lamp unit in a lamp holder or candlestick, it is preferable that perform the contact means located in the lamp holder or the light body with concavely peeled off upper contact edges.

As a result, the lamp unit will be automatically 504 864 10 15 20 25 30 35 6 automatically assume the correct position, at the same time as the contact resistance lowering relative motion in the right place is ensured.

Then an electric light according to the invention is one battery light, it advantageously comprises an electronic circuit to convert by means of pulse modulation an input battery. supply voltage from a number of series-connected batteries to an output lamp supply voltage lower than that nominal supply voltage from a minimum number of uses jade series-connected batteries. This has been shown to improved battery life and better utilization of battery while it is possible to use one and the same lamp unit for different battery lights, regardless of the lights have, for example, two or three or four series connected batteries depending on the light size.

In connection with electric lights that are not battery lights the light body can of course be provided with a base of conventional type for current supply intervention with a for this purpose suitably designed holder. In this case, the holder can be energized from a suitable external power source.

If external power supply occurs with such a high voltage that it is inappropriate for this voltage to be freely exposed on the contact means on which the lamp unit is intended to rest, you can, for example, in a light body instead of batteries arranging a transformer means or the like, whereby the voltage is reduced to the appropriate level.

The invention will be described in the following further by means of an exemplary embodiment with reference to attached drawing.

Brief description of the drawing Fig. 1 is a schematic partial sectional view of an embodiment embodiment of a battery light according to the invention.

Fig. 2 is a schematic perspective view of an embodiment ring shape of a lamp unit according to the invention.

Fig. 3 is a schematic perspective view of the lamp unit according to Fig. 2 taken obliquely from below. 10 15 20 25 30 35 504 864 7 Fig. 4 is a schematic perspective view of a light bulb with associated connecting wires for a lamp unit according to 2 and 3.

Fig. 5 is an enlarged schematic top view of illust- fig. the battery light in Fig. 1 with the lamp unit removed, arranging contact plates for the lamp unit.

Fig. 6 is a schematic side view of one of the the light contact plate for the lamp unit.

Fig. 7 is a schematic side view of a charger with a number of battery lights (without lamp units) placed those therein in and for charge.

Fig. 8 is a schematic top view of the charge itself. pure in Fig. 7.

Fig. 9 is an enlarged partial sectional view of the lower part of a charging hole in the charger according to Figs. 7 and 8, wherein the position of a light body lowered into the hole to be charged, indicated by dashed lines.

Fig. 10 is a block diagram clearly illustrated the structure of the electrical circuit in the battery light according to Fig. 1.

Description of embodiment The example of a battery light shown in the drawing according to the invention comprises as main parts a cylindrical tubular light body 1, which is at the top fully open (opening 2) and at the bottom has a closing, tapered foot part 3 and which has a surface on top longitudinal bead 5 imitating solidified run-down stearin and serving as control in connection with charging, such as will be described later: a battery stack 7 consisting of a number on each other inside the light body 1 stacked, series-connected batteries, as are enclosed by a paper sleeve 8; a sleeve-shaped arrangement arranged on top of the battery stack 7 holding element 9, the upper end of which is open and lies slightly below the opening 2 and carries upwards freely exposed lamp- current supply contact plate ll, 12 and the lower part of which has one 504 864 10 15 20 25 30 35 8 bottom 13 with a central hole 14 for receiving the upper pulse central pole 15 of the battery stack 7; one arranged in the holding element 9 on its bottom 13 electronics circuit 17 with a superimposed associated magnetic field generating coil 18, the electronics the circuit has a connection connector (not shown) in electrical contact with the battery pole 7 plus pole 15; and a lamp unit 21 which is located in the light body 1 open end resting on contact plates ll, 12.

As better seen in Figures 5 and 6, the contact plates 11, 12 curved configuration adapted to the holder the element's 9 curvature, and the contact plates are placed in corresponding, diametrically opposite recesses 23, 24 in the upper circular edge 25 of the clay element 9. 12 has a concave hollowed out upper edge 27, whereupon the lamp unit is intended to lie and at the same time be powered.

From the contact plate 11 a conductor 29 is pulled out. with the outside of the holding element 9 and connected to electronic circuit 17. From the contact plate 12 is on the in a manner a conductor 30 is drawn down along the outside of the holder. element 9 and the outside of the paper stack 7 of the battery stack 7 8 to the bottom of the battery stack where it is in contact with the negative bottom electrode of the lowest battery 31.

The conductor 30 is also connected to the electronics circuit 17 at 32.

In the embodiment shown, the contact plates 11, 12 to a limited extent in circumference, but it is realized that they could have an extent up to slightly less than half the circumference, ie so that they cover in principle the whole Such an facilitates insertion of the lamp unit 21, since circuit but are not in contact with each other. the concavity will mean that the lamp unit strives to occupy a centered position.

The lamp unit 21, which is illustrated in more detail in Figs. 2-4, consists of a light bulb 41, a body part 43 and a diameter reduced pendulum balancing body 45. The light bulb 41 has a glass flask 47, which in shape resembles a candle flame, with a 10 15 20 25 30 35 504 864 9 inner base 48 carrying a filament 49. From the base passes through the lower part of the glass flask two connecting wires 51, 52 and a downwardly directed pin 50 intended for mounting the light bulb in the body part 43.

The body part 43 has a central part 55, shoots a cylindrical projection 56 with an upper device axial bore for receiving the bulb assembly tering pin 50. From the central part 55 protrudes downwards an opposite cylindrical projection 57, on which the circulating The learning cylindrical pendulum body 45 is centrally mounted. Out- the jig 57 is inserted with a good fit in a bore in from which upwards the pendulum body 45, so that the body remains but is rotatable bar around the projection 57 for reasons that will be reported later.

From the central part, two diameters project laterally metrally opposed and relatively narrow arms 58, 59, by means of which the lamp unit 21 rests freely in the light source. the body l, i.e. on the contact plates ll, 12.

The connecting wires 51, 52 of the light bulb 41 are pulled down along the projection 56, through the central part 55 thereof arranged through holes, further outwards on resp. arms 58, 59 flat underside and then back up on the arms top via the oblique free end surfaces of the arms, preferably in therefore arranged tracks.

As will be readily appreciated, the above configuration that the light bulb 41 can be easily mounted and dismounted from the body part, ie the light bulb can be easily replaced if necessary.

Due to the simple construction of the light bulb, it becomes also very cheap. 52 forms lamp- in it The drawn connecting wires 51, contact means at the end of the underside of the arms 58, 59, that the connecting wires here will rest on the contact sheets 11, 12, when the lamp unit 21 has been lowered into the light source. the body 1.

It will be appreciated that the width of the arms 58, 59, connecting wire the diameters 51, 52 and the contact plates 11, should be selected to ensure safe electrical contact, 12 concave 504 864 10 15 20 25 30 35 10 even when the lamp unit 21 swings around the storage shaft which created by the described suspension construction.

Taking this into account and the requirements for easy handling of the connecting wires, it has been found appropriate to have a wire diameter of typically about 0.3 to 0.5 mm, preferably in the lower part of the range, this when used of conventional material in the threads.

For active effect of rocking or pivoting movement of the lamp unit is used magnetically periodically actuation on a permanent magnet means 61 which is arranged at the bottom of the pendulum body 45. The magnetic action takes place using the solenoid 18 and associated drive circuit in the electronics circuit 17, preferably in accordance with what as described in the aforementioned SE-B-451 400, to which hereby referred.

In the embodiment shown, the permanent magnet means is 61 a round bar magnet with a north pole in one end surface and one south pole in the other end face. The bar magnet is inserted into a corresponding diametrical groove perpendicular to the body 45 shoulder and adjacent to the lower surface of the body. Maximum pá- effect is obtained when the extent of the bar magnet is perpendicular against the arms 58, 59. As will be appreciated, the magnetic effect is easily reduced by rotating the body 45 about the the leap 57. Minimal impact is obtained when the bar magnet is parallel to the arms 58, 59.

As a possible alternative, the magnetic means 61 may be asymmetrical to give a more "fluttering" wobble movement of the lamp unit. For example, the bar magnet may be half as long as shown in the figures, ie be arranged radially out from the center of the body 45 to the periphery of the body.

To charge a battery light 1, remove the battery the light from its holder or candlestick and the lamp unit 21 removed. Then place the battery light upside down a charging hole in a charging device 71, which is illustrated is shown schematically in Figures 7-9. 10 15 20 25 30 35 504 864 ll The charging device comprises a light stand 73 in in the form of a parallelepipedic body, in which four ver- solid charge holes 75 are provided. Respect- holes have a diameter slightly larger than a battery light diameter so that cooling air flow upwards around the light in a hole is made possible. Each hole 75 has further in its wall a similarly continuous groove 77 with a cross section corresponding to the bead 5 on the light body 1, so that a light can only be placed in a single, correct position in a charging hole 75. The groove 77 may also be slightly oversized to allow air flow.

Each hole 75 is assigned a separate no closer shown intelligent charging unit 79 of the appropriate conventional type, as well as two signal lamps 80, 81 which show that one light is charging and the light is ready charged.

At the bottom of each hole 75 are two charging electrodes. 83, 84 (see Fig. 9) which are connected via lines 85, 86 bonded to the associated charging unit 79. The electrodes 83, 84 consists of flat or slightly outwardly curved sheets which are attached to a crossbeam 85 and which converges conically upwards.

The upper ends of the sheets are connected to each other by one insulating spacer 89. The cross member 87 is snapped into bottom of the groove 77 and an oppositely arranged recess 90 in hål 75 wall.

As will be readily appreciated, placement of a light body 1 in charging position in a hole 75, dashed lines in Fig. 9, to the contact plate of the light body 11, 12 are brought into safe electrical engagement with the charging contact plates 83, 84.

Fig. 7 shows three light bodies 1 placed in the charging as indicated by charging device 73 in charge, wherein the light body the pairs have different lengths because they include different numbers batteries, eg 4, 2 and 3 pcs counted from left in the figure. 504 864 10 15 20 25 30 35 12 As previously mentioned, it is advantageous that the bodies 1 are cooled during the charging process by flushed by upward passing air. In order to further increase this effect, cooling ducts 91 are arranged throughout in the foot part 3 of the light bodies 1 so that air flow through the interior of the light body is also made possible. This can be particularly suitable when the batteries are of nickel-metal hydride type, whose charge is very temperature sensitive. The In this context, it should be emphasized that charging devices 71 in its entirety can easily be placed in, for example, one refrigerator to ensure controlled low temperature during charging.

Fig. 10 clearly illustrates how electronics circuit 17 with associated magnetic coil 18 may be built. The magnetic coil 18 is periodically supplied with current pulses from a circuit 95 which in turn is fed directly from battery stack 7. Contact plates 11, circuit 96 which provides pulse modulated supply of the light bulb 41 12 is powered via a corresponding to a light bulb supply voltage lower than battery voltage 7 of the battery stack 7. As an example can be given the following typical values: Battery stack voltage 2.4 to 6 V corresponding to 2 to 5 series-connected batteries; glow- the nominal voltage of the lamp approx. 1.3 V; the pulse feed corresponds to a normal supply of about 1.8 V, ie a certain overvoltage ning.

This type of feeding has been shown to provide an exceptional good utilization of the batteries' capacity with evenly high luminous flux from the filament lamp 41, regardless of the number of teries in stack 7. The circuit 96 may be built on for those skilled in the art well known way in terms of pulsed or switched voltage-reducing power supply. Above the circuit 96 a diode 97 is connected so that it bridges circuit 96 and allows current flow in the opposite direction in connection with charging, ie when the contact plate 11, 12, charging voltage is applied to the charging device 71. 10 15 20 25 30 35 504 864 13 In the circuit of Fig. 10, no switch has been shown. re, as such is not necessary. The light bulb can as realized, if necessary, is easily extinguished by changing the position slide in the light body so that the power supply contacts do not Of course it would a switch can be arranged on the light body 1, e.g. at its lower part for breaking the line 30 to battery pole 7 lower pole 31. Such a switch longer are in contact with each other. could also be given a design to emulate run down, solidified stearin.

Claims (24)

504 864 10 15 20 25 30 35 14 PATENT REQUIREMENTS Light system comprising electric light, a light comprising a sleeve-shaped light body (1), power supply means (7) arranged in the light body, and a lamp unit (21) arranged at the upper upwardly open end of the light body with a light bulb (41), k characterized in that the first contact means (11, 12) connected to said power supply means are freely exposed arranged in the light body at said end and second contact means (51, 52) are arranged on a body part (43) of the lamp unit and connected to the lamp unit. (21) the filament (49) of the filament lamp (41) and wherein said first and second contact means are so arranged and said body part is designed so that the lamp unit can be freely placed from above directly in the open end of the light body with said second contact means (51, 52) resting on and in electrical contact with said first contact means (11, 12), so that the contact points define a pivot axis extending horizontally extending at vertically arranged light, around which the lamp unit can pivot s as a unit in relative motion between said first and second contact means. Lighting system according to claim 1, in that the lamp unit (21) of the lamps has a balancing member (45) connected to the body part (43), preferably of pendant type, which gives the center of gravity of the lamp unit a position known below said pivot axis. Lighting system according to claim 1 or 2, characterized in that the frame part (43) of the lamp unit (21) has transversely opposed arms (58, 59) projecting on the opposite side, on which said second contact means (51, S2) are arranged. k ä n n e - k ä n n e - Lighting system according to claims 2 and 3, characterized in that the frame part (43) of the lamp unit is generally cross-shaped, said second contact means (51, 52) being arranged on the underside of respective laterally projecting frame part arm (59, 58), said balancing means (45) is connected to a downwardly directed body part projection (57) and the bulb (41) itself is connected to an upwardly directed body part projection (56). Lighting system according to claim 4, characterized in that the light bulb (41) has a piston (47) enclosing the filament (49) and associated filament base (48), from which the connecting wires (51, 52) of the light bulb project , and a downwardly directed mounting pin (50), the light bulb being attached to the upwardly directed body portion projection (56), which is preferably at least at the top tubular for receiving said mounting pin. was with Lighting system according to any one of the preceding claims, characterized in that said second contact means consists of the connecting wires (51, 52) of the incandescent lamp (41). Lighting system according to Claim 6, characterized in that the connecting wires (51, 52) are detachably extended, whereby the light bulb (41) with associated connecting wires is easily replaceable. Lighting system according to any one of claims 3 - 5 or not - 52) is a combination with any one of claims 6 - 7, characterized in that the connecting wires (51, pulled down to the respective underside of the transversely projecting frame arms (58, 59) and then outwardly along the respective underside, after which the connecting wires are read upwardly folded at the outer ends of the transversely projecting frame arms. Lighting system according to claim 1, 2 or 3, characterized in that the light bulb (41) is, preferably soluble, arranged separately from the body part (43) cage 56), than by its connecting wires and / or spacers (50, 52). ) are drawn on 59) to whereby the connecting wires (51, the transversely projecting arms (58 of the body part) form said second connecting means. Lighting system according to any one of the preceding claims, characterized in that said first contact means (11, 12) consists of oppositely arranged, standing contact plates with concavely bald upper contact edges (27). JsAn onnemAL å 504 864 ~ 10 15 20 25 30 35 16 Lighting system according to one of the preceding claims, in that the lamp unit (21) contains ll. characterized by a magnetically actuatable element (61), preferably a permanent magnet element, and that means (17, 18) are arranged in the light body (1) below the lamp unit for periodically generating a magnetic field to magnetically actuate the magnetically actuable the element and thus the lamp unit, so that it is caused to periodically pivot about its pivot axis. Lighting system according to Claim 11, in that the magnetically actuable element (61) is arranged positionally relative to the lamp unit (21) in general, so that the degree of magnetic influence and thereby the oscillation amplitude of the lamp unit becomes adjustable. Lighting system according to claims 2 and 12, characterized in that the magnetically actuatable element (61) is arranged on said balancing means (45), preferably at the bottom thereof, and that said balancing means is arranged on the body part of the lamp unit ( 43) rotatable characteristic - around a vertical axis. Lighting system according to any one of the preceding claims, characterized in that the lights are battery lights, said power supply means comprising one or more rechargeable batteries (7) arranged in the light body, and a charging device (71) for charging battery lights is arranged, which device comprises a light stand (73) for receiving one or more battery lights, from which the associated lamp unit has been removed, for charging thereof, the light stand at each light receiving point having charging contact means (83, 84) arranged to come into contact with said first contact means (11, 12) in the light body (1) of a battery light, when the light body is placed at the light receiving point in question, which charge contact means (83, 84) are connected to a charge unit (79) for delivering charge current to said charge contact means and thereby to a connected light body. batteries. 10 15 20 25 30 35 504 864 17 Lighting system according to claim 14, in that the lighting stand (73) of the charging device (71) is arranged to receive resp. light body (1) upside down, preferably at least substantially vertically, in a hole (75) adapted to the light body configuration, so that the light body is provided with a predetermined position adapted to the charging contact means (83, 84) arranged in the hole, wherein the charging contact means preferably comprise upwardly converging, separately arranged contact elements, over which the first contact means of the light body are brought into character when engaging during charging. Lighting system according to claim 15, characterized in that the holes (75) of the lighting stand (73) are continuous and so dimensioned that air can flow up therethrough and cooling rewinds one for charging in a resp. hole placed battery light. Lighting system according to claim 15 or 16, characterized in that the light body (1) on a battery light on the outside has one or more asymmetrical, longitudinally arranged ridges (5), ridges or the like, which preferably mimic the down-solidified stearin, and that the candle holder holes (75) have corresponding guide grooves (77) in the hole wall. Lighting system according to one of Claims 14 to 17, characterized in that a battery light comprises an electronic circuit (17) for converting an input supply voltage from a number of series-connected batteries (7) to an output lamp supply voltage which is lower than preferably by pulse modulation. the nominal supply voltage from a minimum number of used series-connected batteries. A Lamp unit especially for a lighting system according to any one of the preceding claims, characterized in that it comprises a frame part (43) with 1 transversely projecting rigid storage arms (58, 59) projecting with contact means (51, 52) arranged on the end underside of each arm. ), a light bulb (41) attached to the upper side of the body part and 504 provided with connecting wires connected to and preferably constituting said contact means, and a balancing means (45) attached to the underside of the body part, said contact means defining a transversely extending storage shaft about which the lamp unit can, like a cohesive unit, pivot when in use from above is freely placed directly in a lamp holder provided with current supply contact means arranged in correspondence with the lamp unit's said contact means. Lamp unit according to claim 19, in that the bulb (41) is, preferably soluble, arranged separately from the body part (43) carried by its connecting wires (51, 52) and / or spacers (56, 50), the connecting wires being extended on the transversely projecting arms (58, 59) of the body member to form said characteristic contact means. Lamp unit according to claim 19 or 20, characterized in that the bulb (41) has a piston (47) enclosing a filament (49) and associated filament base (48), from which the connecting wires (51, 52) of the bulb protrude, and a downwardly directed mounting pin (50), with which the light bulb is attached to an upwardly directed body part projection (56) which is preferably at least at the top tubular for receiving said mounting pin. Lamp unit according to any one of claims 19-21, characterized in that the lamp unit (21) comprises a magnetically actuatable element (61), preferably a permanent magnet element, which is arranged to be actuated by a magnetic field periodically generated in the lamp holder in order to magnetically actuate the magnetically actuable element and thus the lamp unit, so that it is caused to periodically pivot about its bearing axis. Lamp unit according to claim 22, characterized in that the magnetically actuatable element (61) is arranged positionally relative to the lamp unit (21) in general, so that the degree of magnetic influence and thereby the lamp unit oscillation amplitude becomes adjustable. Lamp unit according to claim 22 or 23, characterized in that the magnetically actuable element (61) is arranged on said balancing means (45), preferably at the bottom thereof, and that said balancing means is arranged on the lamp unit (21). body part (43) rotatable about a vertical axis.