DE102006017380A1 - Lamp socket and method for mounting the lamp socket - Google Patents

Abstract

The invention relates to a socket for receiving and contacting an incandescent lamp, comprising a main body (10) which consists of a lamp receiving part (20) and a connecting part (30), the lamp receiving part (20) and the connecting part (30) being connected to one another and so on are arranged so that their axes enclose an angle greater than 0 ° and less than 180 °, preferably 90 °. In this case, at least one receiving contact element (21; 21 ') is inserted into the lamp receiving part (20) and at least one connecting contact element (31; 31') is inserted into the connecting part (30), wherein between a contact area (22; 22 ') of the receiving contact element (21; 21 ') and a contact area (32; 32') of the connecting contact element (31; 31 ') an electrical contact is made. A contact area (22; 22 ', 32; 32') of the receiving contact element (21; 21 ') or of the connecting contact element (31; 31') has at least one insulation displacement terminal (40) with two insulation displacement legs (41; 41 ') and each the other contact area (22; 22 ', 32; 32') is clamped between the two insulation displacement legs (41; 41 '). The invention also relates to a method for assembling the lamp socket according to the invention.

Description

The The invention relates to a socket for receiving and contacting a Light bulb. The socket consists of a main body, which consists of a lamp receiving part and a connecting part is formed. The lamp holder part and the connecting part are connected to each other and arranged so that their axes are larger or larger equal to 0 ° and less than or equal to 180 °, preferably 90 °, lock in. In the lamp receiving part is at least one receiving contact element and at least one connection contact element in the connection part inserted, wherein between a contact region of the receiving contact element and a contact region of the connection contact element is an electrical Contact is made.

The The invention further relates to a method for assembling such Lamp socket.

Generic versions are known from the prior art. The European patent EP 0 668 638 B1 For example, describes a lamp socket with an L-shaped housing. The L-shaped housing consists of a device seat and a connecting seat, wherein the longitudinal axes of the device seat and the connecting seat include an angle greater than 0 ° and less than 180 °. A device port is inserted in the device seat, and a connector port is inserted in the connection seat. To establish an electrical contact between these terminals, a through hole is formed in one of the terminals, in which the respective other terminal is fitted. In order to hold the fitted into the hole contact and to realize a secure electrical contact, elastic sections are necessary, which apply a spring force on the terminal.

adversely affects in the prior art, the low holding force of this elastic Sections off, so that the inserted into the hole contact element without much force application can be pulled out of the hole, for example, one on the connection contact elements unplugged plugged connector.

Around to hold the contact elements in the lamp socket are the contact elements in the prior art, for example, in the enclosing plastic locked. However, a disadvantage in this embodiment is that at multiple tensile load of a contact element, the holding force the plastic deteriorates sharply due to erosion and deformation.

task The invention is to provide a generic lamp socket, the one mechanically strong load-bearing connection between contact elements a lamp receiving part and a connecting part manufactures.

task The invention further provides a method for mounting this lamp socket provide.

According to the invention this Task by a version with the features of the independent claim 1 solved. Advantageous developments of the version emerge from the Unteransprü 2-6. Further The invention includes a method for assembling the socket Claim 7 and the developments in the subclaims 8 and 9th

The inventive version for receiving and contacting an incandescent lamp comprises a main body, which at least from a lamp receiving part and a connecting part consists. The lamp receiving part and the connecting part are connected to each other connected and arranged so that their axes are greater or equal to an angle 0 ° and smaller or equal to 180 °. In the Lamp receiving part is at least one receiving contact element and in the connecting part is at least one connection contact element inserted, wherein between a contact region of the receiving contact element and a contact area of the connection contact element, an electrical contact is made. In this case, the contact region of the receiving contact element or the connection contact element at least one insulation displacement terminal with two IDC legs, with between the two IDC legs the other contact area is clamped. The insulation displacement limbs cut into the material of the pushed into the insulation displacement limbs Contact area.

Of the inventive structure a lamp holder is particularly suitable for versions in which the Lamp receiving part and the connecting part are arranged so that their axes an angle greater than 0 ° and smaller 180 °, where an angle of about 90 ° is preferred is.

In a preferred embodiment of Invention has the contact area of the receiving contact element or of the connection contact element at least two insulation displacement terminals on, with the other contact area between the cutting clamp legs the at least two insulation displacement terminals are clamped. Is preferred the at least one cutting clamp integral with the contact area the receiving contact element or the connecting contact element connected.

In a further embodiment of the invention, the contact area of the cutting into the terminal of the receiving contact element or the connecting contact element clamped other contact area formed pin-shaped. Advantageously, the pin-shaped contact region thereby has a quadrangular cross section and thus the shape of a contact pin.

In a particularly preferred embodiment is the at least one insulation displacement terminal at the contact region of the receiving contact element arranged while the contact region of the connection contact element is pin-shaped is.

From The invention further comprises a method for assembling a Socket for receiving and contacting an incandescent lamp, wherein the socket a main body comprising, which consists of a lamp receiving part and a connecting part consists. In this case, the lamp receiving part and the connecting part connected together and arranged so that their axes one Angle greater than 0 ° and less than 180 °, preferably 90 °. In the lamp receiving part becomes at least one receiving contact element and in the connecting part is at least one connection contact element inserted. Between a contact region of the receiving contact element and a Contact area of the connection contact element becomes an electrical Contact made by placing a contact area of the pickup contact element or the connection contact element between two insulation displacement limbs at least clamped a cutting terminal of the other contact area becomes.

In a particularly preferred embodiment This method is the contact area of the connection contact element pin-shaped trained and is inserted into a channel in the connecting part, being brought into a defined position. The contact area the receiving contact element is as at least one insulation displacement terminal formed with two cutting clamp legs and is in another channel inserted in the lamp receiving part, wherein the Cutting terminal of the terminal contact element, the pin-shaped contact area clamped the connection contact element.

Prefers comes the end of the pin-shaped contact area of the connection contact element after insertion into the channel of the Connecting parts on a bridge for lying, by two wells is formed in the material of the connecting part, so that the lateral Wells the insulation displacement limbs of the insulation displacement clamp when pinching the pin-shaped Record the contact area of the connection part.

The Use at least one insulation displacement terminal at one of the contact areas a generic lamp socket brings with it the advantage that the withdrawal forces of the connection contact element or the receiving contact element thereby increased. Is the Cutting terminal in the contact area of the receiving contact element, is after connecting a receiving contact element with a connection contact element the for pulling out the connection contact element from the insulation displacement terminal the receiving contact element required force very high. This can be prevented when pulling a plug whose contacts on the Connection area of the lamp socket with the connection contact elements electrically and mechanically connected, the connection contact elements be pulled out with. The use of several insulation displacement terminals contributes to further increase the deduction forces at the contact elements.

Become the cutting clamps in one piece with the connection contact element or the receiving contact element connected and thus made of a component, this reduces across from a two-part design the production costs. Another advantage of the invention lies in the cost-effective Using common, pin-shaped Connection contact elements, if the at least one insulation displacement terminal for example, located in the contact region of the terminal contact element.

Especially in an angular lamp socket, in which the longitudinal axes but the lamp receiving part and the connecting part is not vertical to each other, has the contact according to the invention of the contact areas by means of a cutting clamp the advantage that they are in all angular positions a simple and secure contact allows. The case of the Lamp socket must only be designed so that the contact elements clear of the two parts when mounted inside the housing defined led become. Once the insulation displacement connection is made, too a pin pinched at an angle other than 90 ° fixed and an electrical contact is guaranteed.

Further Advantages, special features and expedient developments of the invention emerge from the dependent claims and the following description of preferred embodiments based on the pictures.

From the pictures shows:

1 a perspective view of a generic lamp socket housing;

2 a perspective view of a particularly preferred embodiment of two Connection contact elements and corresponding receiving contact elements of a lamp holder according to the invention;

3 a perspective view of a particularly preferred embodiment of a trained as a double cutting terminal contact area of a receiving contact element with inserted contact pins;

4 a perspective view of a longitudinal section through a particularly preferred embodiment of the bulb holder according to the invention; and

5 an enlarged section of the in 4 shown area of the electrical contact.

1 shows a generic lamp socket with a main body 10 which is in a lamp holder part 20 and a connection part 30 is subdivided. In the lamp holder part 20 a light bulb is used. This can be done for example by a bayonet, in which the bulb can be screwed. One through the lamp holder part 20 extending longitudinal axis extends in the insertion direction of the bulb.

The connecting part 30 serves to accommodate a plug which establishes the electrical contact of the bulb with a voltage source. This connector is inserted at the open end of the connector. The contacts of the plug with the ends of the in the connecting part 30 connected contacts. Through the connecting part 30 runs a longitudinal axis in the insertion direction of the connector.

The longitudinal axes of the lamp receiving part 20 and the connecting part 30 intersect in the area of the connection of the two components. The longitudinal axes of the components enclose an angle that is greater than 0 ° and less than 180 °. In the in 1 illustrated lamp socket, this angle is about 90 °, so that the lamp socket is substantially L-shaped. Depending on the application of the lamp socket, however, the angle in other embodiments may also assume other values between 0 ° and 180 °.

2 shows the perspective view of a particularly preferred embodiment of the main body 10 the lamp socket located contact elements. In this embodiment, the receiving contact element consists of two components 21 and 21 ' of which one component 21 for example, contacted the ground contact of an incandescent bulb introduced, while the second component 21 ' contacted the scope of the bulb socket. The component for contacting the circumference of a light bulb base may be formed, for example, as a bayonet mount and its shape is dependent on the geometry of the incandescent bulb. The component for contacting the ground contact of the light bulb is for example a spring, as in 2 and 3 is shown. So probably the bayonet mount and the spring of the receiving contact element 21 . 21 ' have in this embodiment of the invention, a contact pair, which comprises two elongated webs, at the end of each a contact area 22 ; 22 ' located. The connection contact element for connecting a plug likewise consists of a contact pair 31 . 31 ' that has its associated contact areas 32 ; 32 ' with the corresponding contact areas 22 ; 22 ' the receiving contact element is connected.

The number of contacts in the main body 10 a lamp socket can vary. The number of contacts depends, for example, on the number of glow wires in the main body 10 used light bulb. For example, if two filaments are used, there is another contact compared to a filament.

The contact areas 22 ; 22 ' at the end of the receiving contact element are in the in 2 and 3 shown embodiment as insulation displacement terminals 40 each with two insulation displacement limb pairs 41 . 41 ' educated. Between the insulation displacement limbs 41 . 41 ' the at least one insulation displacement terminal 40 is the pin-shaped contact area 32 . 32 ' of the connection contact element 31 . 31 ' inserted.

In an embodiment not shown in the figures, the at least one insulation displacement terminal can also be at the contact area 32 . 32 ' of the connection contact element 31 . 31 ' are located during the contact area 22 . 22 ' the receiving contact element 21 . 21 ' is formed pin-shaped.

For mounting the connection, the pin-shaped contact areas are expediently first introduced and subsequently contacted ßend with the insulation displacement terminals of the other contact areas. In the embodiment of the invention illustrated in the figures, the insulation displacement limbs cut 41 . 41 ' the at least one insulation displacement terminal 40 with those in the nip 43 pointing cutting edges material notch-shaped from the pin-shaped contact area 32 . 32 ' out. The insulation displacement limbs cut 41 . 41 ' the at least one insulation displacement terminal 40 in the cross section of the pin-shaped contact area 32 . 32 ' on and over these plant surfaces of the insulation displacement leg of the electric power is over wear.

Compared to a simple plug-in connection, the notches cut into the material of the contact pins by the insulation displacement limbs increase the force required to pull the pin-shaped contact laterally out of the insulation displacement terminal. By using a plurality of cutting terminals for contacting contact pins, the force required for lateral removal of the pin-shaped contact elements from the insulation displacement terminals is further increased. It should be noted, however, that the force required during assembly for inserting the contact pins in the insulation displacement terminals 40 also increases.

3 shows an enlarged section of the in 2 illustrated contacting a receiving contact element 21 , at the end of two insulation displacement terminals 40 are formed. The contact area 32 a pin-shaped connection contact element 31 was clamped during assembly between the insulation displacement legs of the two insulation displacement terminals. However, the cutting of the cutting edge leg in the contact pin to simplify the presentation, however, is not shown in the drawing.

4 discloses a longitudinal section through a particularly preferred embodiment of the lamp socket according to the invention, consisting of the main body 10 , which in a lamp receiving part 20 and a connection part 30 is divided. In the main body is in this view, a pin-shaped connection contact element 31 introduced, which between the insulation displacement limbs of at least one insulation displacement terminal 40 the receiving contact element 21 is inserted. In this embodiment, two insulation displacement terminals are also at the end of the receiving contact element 40 available. However, it is also possible, only one or more than two insulation displacement terminals for contacting the connection contact element 31 to use.

The insulation displacement terminals 40 are in this embodiment of the invention integral with the receiving contact element 21 connected, so that the entire receiving contact element is formed of continuous material. However, the insulation displacement terminals can also be connected to the receiving contact element via a welding or adhesive process 21 or the connection contact element 31 be connected. The ends of the insulation displacement terminals 40 become from in-lying depressions 42 in the lamp holder part 30 taken while the contact pin 31 rests on a bridge between these recesses. The wells 42 ensure a defined positioning of the insulation displacement terminals 40 while the web between the recesses supports the contact pin during assembly to allow the cutting terminals to be cut into the material of the post.

For mounting the lamp holder expediently first, the pin-shaped contact elements 31 . 31 ' in the connecting part 30 inserted, with corresponding channels are provided in the material of the connecting part. The cross-section of the channels is preferably chosen so that they allow easy insertion of the pins, but the pins stuck with no or only a very small game in the channels. If contact pins with a rectangular cross-section are selected, the channels are preferably made with the same cross-section so as to prevent twisting of the pins. After insertion of the contact pins in the connecting part 30 For example, the end of a pin in the region of the electrical contact is preferably located on the web, which is between the two recesses 42 is formed in the material of the connecting part. Furthermore, the tip of a pin can rest on the housing inner wall, so that the position of the contact pin is firmly defined.

After insertion of the contact pins, the receiving contact elements 21 . 21 ' from the outside into the lamp receiving part 20 pushed. In order to align the receiving contact elements in the housing, insertion channels are expediently also provided and the assembly can be done manually or mechanically. The legs of the insulation displacement terminals 40 are when inserting the receiving contact elements in the wells 42 added in the material of the connecting part. The cutting clamps cut 40 the receiving contact elements 21 . 21 ' in the pin-shaped contact area 32 . 32 ' the connection contact elements 31 . 31 ' and establish a firm electrical and mechanical connection. The depth of the shots 42 is chosen so that at the latest when the contact of the insulation displacement leg with the bottom of the wells, the desired contact is generated.

Will a tensile force on the pin-shaped connection contact element 31 Applied to pull it out of the connector prevent the recordings 42 Furthermore, a lateral Ver bend the insulation displacement terminals 40 , The pictures 42 thus ensure that the insulation displacement terminals 40 do not tilt in the withdrawal direction or twist. Therefore, a very high force would be required to connect the connection elements 31 . 31 ' from the connection part 20 to solve. When removing a plug from the contact pins, the pins are thus securely held in the housing of the lamp socket.

5 represents an enlarged section of the in 4 illustrated embodiment of the lamp holder according to the invention and in particular the region of the electrical contacting. It can be seen that the respective legs 41 . 41 ' the insulation displacement terminals 40 in the wells 42 are received, they do not touch the bottom of the recess in this embodiment. The maximum insertion depth of the contact area 21 in the receiving part 20 can be realized by contact with the bottom of the recesses or otherwise formed stops within the housing. The maximum possible insertion depth for a contact element with a cutting clamp is in any case so large that a secure electrical connection is ensured with a pinched pin.

10

Main body of the bulb socket

20

Lamp receiving part

21 21 '

Female contact element

22 22 '

contact area a receiving contact element

30

connecting part

31 31 '

Connector contact element

32 32 '

contact area a connection contact element

40

insulation displacement terminal

41 41 '

IDC man grandson

42

Deepening, admission

43

nip

Claims (9)

Socket for receiving and contacting an incandescent lamp, comprising a main body ( 10 ), which consists of a lamp receiving part ( 20 ) and a connecting part ( 30 ), wherein the lamp receiving part ( 20 ) and the connecting part ( 30 ) and are arranged so that their axes enclose an angle greater than or equal to 0 ° and less than or equal to 180 °, preferably 90 °, and in the lamp receiving part ( 20 ) at least one receiving contact element ( 21 ; 21 ' ) and in the connecting part ( 30 ) at least one connection contact element ( 31 ; 31 ' ), wherein between a contact area ( 22 ; 22 ' ) of the receiving contact element ( 21 ; 21 ' ) and a contact area ( 32 ; 32 ' ) of the connection contact element ( 31 ; 31 ' ) an electrical contact is produced, characterized in that a contact region ( 22 ; 22 ' . 32 ; 32 ' ) of the receiving contact element ( 21 ; 21 ' ) or the connection contact element ( 31 ; 31 ' ) at least one insulation displacement terminal ( 40 ) with two insulation displacement limbs ( 41 ; 41 ' ) and the respective other contact area ( 22 ; 22 ' . 32 ; 32 ' ) between the two insulation displacement limbs ( 41 ; 41 ' ) of the insulation displacement terminal ( 40 ) is trapped. Socket according to Claim 1, characterized in that the contact region ( 22 ; 22 ' . 32 ; 32 ' ) of the receiving contact element ( 21 ; 21 ' ) or the connection contact element ( 31 ; 31 ' ) at least two insulation displacement terminals ( 40 ) and the respective other contact area ( 22 ; 22 ' . 32 ; 32 ' ) between the insulation displacement limbs ( 41 ; 41 ' ) of at least two insulation displacement terminals ( 40 ) is trapped. Socket according to one or more of the preceding claims 1 to 2, characterized in that the at least one insulation displacement terminal ( 40 ) in one piece with the contact area ( 22 ; 22 ' ) of the receiving contact element ( 21 ; 21 ' ) or the connection contact element ( 31 ; 31 ' ) connected is. Socket according to one or more of the preceding claims 1 to 3, characterized in that the contact region ( 22 ; 22 ' . 32 ; 32 ' ) into the insulation displacement terminal ( 40 ) of the receiving contact element ( 21 ; 21 ' ) or the connection contact element ( 31 ; 31 ' ) clamped other contact element ( 21 ; 21 ' . 31 ; 31 ' ) is formed pin-shaped. Socket according to Claim 4, characterized in that the pin-shaped contact region ( 22 ; 22 ' . 32 ; 32 ' ) has a quadrangular cross-section. Socket according to one or more of the preceding claims 1 and 5, characterized in that the at least one insulation displacement terminal ( 40 ) at the contact area ( 22 ; 22 ' ) of the receiving contact element ( 21 ; 21 ' ), while the contact area ( 32 ; 32 ' ) of the connection contact element ( 31 ; 31 ' ) is formed pin-shaped. Method for mounting a socket for receiving and contacting an incandescent lamp, in which the socket has a main body ( 10 ), which consists of a lamp receiving part ( 20 ) and a connecting part ( 30 ), wherein the lamp receiving part ( 20 ) and the connecting part ( 30 ) are arranged so that their axes at an angle greater than 0 ° and less than 180 °, preferably 90 °, include and are interconnected, wherein in the lamp receiving part ( 20 ) at least one receiving contact element ( 21 ; 21 ' ) and in the connecting part ( 30 ) at least one connection contact element ( 31 ; 31 ' ) and between a contact area ( 22 ; 22 ' ) of the receiving contact element ( 21 ; 21 ' ) and a contact region of the connection contact element ( 31 ; 31 ' ) an electrical contact is produced, characterized in that a contact region ( 22 ; 22 ' . 32 ; 32 ' ) of the receiving contact element ( 21 ; 21 ' ) or the connection contact element ( 31 ; 31 ' ) between two insulation displacement limbs ( 41 ; 41 ' ) at least one insulation displacement terminal ( 40 ) of the other contact area ( 22 ; 22 ' . 32 ; 32 ' ) is trapped. Method according to claim 7, characterized in that the contact area ( 32 ; 32 ' ) of Ver bonding contact element ( 31 ; 31 ' ) formed pin-shaped and first in a channel in the connecting part ( 30 ), whereby it is brought into a defined position, and that the contact area ( 22 ; 22 ' ) of the receiving contact element ( 21 ; 21 ' ) as at least one insulation displacement terminal ( 40 ), each with two insulation displacement limbs ( 41 ; 41 ' ) is formed and into a channel in the lamp receiving part ( 20 ) is inserted, wherein the insulation displacement terminal ( 40 ) of the receiving contact element ( 21 ; 21 ' ) the pin-shaped contact area ( 32 ; 32 ' ) of the connection contact element ( 31 ; 31 ' ). Method according to claim 8, characterized in that the end of the pin-shaped contact region ( 32 ; 32 ' ) of the connection contact element ( 31 ; 31 ' ) after insertion into the channel of the connecting part ( 30 ) comes to rest on a bridge, which passes through two depressions ( 42 ) in the material of the connecting part ( 30 ) is formed so that the lateral recesses ( 42 ) the insulation displacement limbs ( 41 ; 41 ' ) of the insulation displacement terminal ( 40 ) when pinching the pin-shaped contact area ( 32 ; 32 ' ) of the connecting part ( 30 ) take up.