This patent application takes priority over the German utility model application DE 20 2016 102 669.5, the contents of which are incorporated herein by reference.
The invention relates to a contacting device for the transmission of electrical energy to a printed circuit board as defined in the general notion of claim 1. The invention also relates to a method for the installation of a contacting device.
The US 4 749 357 A is a contact device for contacting a power supply line with a circuit board. The contact device has a thermoplastic body on which a conductive bus element is located. The bus element is connected to several contact pins that extend through the thermoplastic body. The contact pins are pluggable into the circuit board and can be contacted with the circuit board.
DE 1036 969 B is a quick-clamp connector with a plug connected to a shaft. The shaft is mounted in a sliding case and has a transverse plug to receive a wire or plug. Between a shaft winding and an insulating plug connected to the sliding case, a screw spring is mounted which acts transversely to one axis of the cross-box. The wire or plug is inserted into the transverse box by means of oil openings.
GB 592 135 A describes a contacting device with a clamping case which is fixed to a stand, the clamping case being a nut into which a bolt is inserted by means of a screw spring.
The purpose of the invention is to create a simple-to-construct and easy-to-install contact device that allows the simple and reliable transmission of electrical energy to a circuit board with low resistance.
This is achieved by a contacting device with the characteristics of claim 1. The housing and the first contacting element are relatively displacementable across the centre-long axis of the reception area. The spring is located between the housing and the first contacting element across the centre-long axis and is forward-stretched. In an introduction position, the first contacting element is displaced relative to the housing by an external force against the spring force of the spring so that the second contacting element can be introduced into the reception area of the first contacting element through at least one opening of the housing. If the second contacting element is located in the reception area, the first contacting element can be introduced into the reception area in a simpler way by relaxing the feed into a clamp position.In the clamping position, the second contact element between the first contact element and the housing is connected to the first contact element in a simple and reliable manner due to the spring force of the spring element acting transversely to the median longitudinal axis. The spring force of the spring element and the contact surface between the first contact element and the second contact element ensure an electrical connection with low electrical resistance. The fact that at least one plug contact element and the first contact element are firmly connected to each other and cannot be moved across the median longitudinal axis makes it possible to transmit electrical energy from the first conductor to a contact element in a simple and reliable manner with low electrical resistance.The fixed connection also makes the contacting device stable and easy to install. The number of components of the contacting device is relatively small, so that the contacting device is easy to build and cheap to manufacture. The housing is preferably made of an electrically insulating material, especially a plastic material.
The contacting device allows electrical power to be transmitted in a simple and reliable manner. The second contacting element has two nuts formed on either side of a contact section. The nuts and the associated walls of the housing secure the second contacting element in the reception area and protect it from displacement in the direction of the mid-long axis. Preferably, the respective utility is formed as a circular ring-shaped utility. The respective utility preferably has a rejuvenating cross-section in the direction of a base. This directs the second contacting element in the direction of the mid-long axis when clamping to the first contacting element. This simplifies and allows an optimal flow of oil between the first contacting element and the second contacting element in a way that limits the flow of oil into the second contacting element.
The contacting device ensures easy and reliable installation. The two opposite openings allow the second contacting element to be introduced into the reception area from different sides, thus ensuring easy and flexible installation. Furthermore, the second contacting element is guided through the two opposite openings, so that the second contacting element can be easily securely secured by means of two nuts and one opening, respectively, which limits the wall of the enclosure against displacement in the direction of the mid-length.
A contacting device according to claim 2 ensures simple construction and reliable electrical power transmission to a low-resistance circuit board. The single formation ensures that the first contacting element and at least one plug-in contacting element are connected in a stable and well-conductive manner. The number of components is small due to the single formation and the manufacture and pre-assembly of the contacting device is simple and inexpensive.
A contact device according to claim 3 ensures simple construction and installation. The first coupling ensures that the relative motion of the housing and the first contact element is limited in an input position so that the second contact element can be introduced into the reception area through at least one opening in the input position. The second coupling ensures that relative motion of the housing and the first contact element is limited by the spring force of the spring if the second contact element is not in the reception area and is wedged between the housing and the first contact element.
A contact device as claimed in claim 4 ensures a simple construction and installation. The first contact element, which extends through the passage opening and is exposed in sections, allows easy contact with the circuit board by means of at least one plug-in contact element. Furthermore, the first contact element is securely contained in the housing in case of relative motion, so that the necessary relative movements between the housing and the first contact element for the installation of the contact device are easily and reliably possible.
A contacting device according to claim 5 ensures a simple design and installation. The first contact and spring element are placed in an interior space bounded by the two housing parts and the housing parts are then connected to each other. Preferably, the housing parts form a resting connection. To this end, resting forks are formed at at least one of the housing parts, which intervene in the corresponding resting openings of the other housing part. Preferably, the housing parts are formed from a plastic material. To increase flexibility, at least one of the housing parts has, for example, slots, which increase the stability of the resting connection in the area of the housing parts/housing openings and increase the stability of the resting opening/s.
A contact device according to claim 6 provides simple electrical energy transmission to a circuit board and energy distribution on the circuit board, and provides a reliable mechanical connection of the plug-in elements to the circuit board and a high electrical conductivity.
A contact device according to claim 7 provides a simple electrical energy transfer from the second contact element to the first contact element with a low electrical resistance. The cylindrical contact section and cylindrical reception area provide a large contact area and a low contact resistance. Preferably, a length of the contact section in the direction of the mid-axis corresponds to a length of the reception area. A diameter of the contact section is proportional to a diameter of the reception area so that the contact section can be introduced into the reception area and has as little radial play as possible.
A contacting device according to claim 8 ensures easy installation.
A contact device according to claim 9 ensures easy installation, the rejuvenating tip enables the second contact element to be easily introduced into the reception area through the openings.
A contact device according to claim 10 provides simple and reliable electrical power transmission with low electrical resistance. The crimp section makes the second contact element easy and reliable to contact with a power supply line with low ohm resistance. For example, the second contact element is made of brass and the crimp section is softened.
The purpose of the invention is also to develop a method for the installation of a contacting device which allows the transmission of electrical energy to a circuit board in a simple and reliable manner with low resistance.
This problem is solved by a process with the characteristics of claim 11. The advantages of the process of the invention correspond to the advantages of the contact device of the invention already described.
Further features, advantages and details of the invention are shown in the following description of several examples:Fig. 1a first section view of a contacting device for the transmission of electrical energy from a power supply line to a circuit board according to a first example,Fig. 2a second section view of the contacting device perpendicular to the section view in Fig. 1,Fig. 3a rotation view of a underside of the contacting device,Fig. 4a section view of a contacting device assembly mounted in front of the contacting device assembly in Fig. 1 without a contacting element,Fig. 5a first section view of a contacting electrical power supply assembly in Fig. 4,Fig. 6a second section view of the contacting device assembly according to Fig. 4,Fig. 9a second section view of a contacting electrical power supply assembly in front of a contacting element mounted in front of a contacting electrical power supply assembly according to Fig. 4,Fig. 8a second section view of a contacting electrical power supply assembly according to Fig. 4,Fig. 9a second section view of the contacting assembly according to Fig. 8a. 9a.
The following is a first example of the invention, illustrated by Figures 1 to 7: A contact device 1 comprises a pre-assembled assembly 2 with a housing 3, a first contact element 4, a spring element 5 and plug elements 6.
The first part of the housing 9 has four side walls 12, 12', 13, 13' and an upper deck wall 14, with the side walls 12, 12' and the side walls 13, 13' facing each other. In the side walls 12, 12' there are associated openings 15, 15' which share a first central axis 16 and are formed and arranged in the direction of the central axis 16 of the deck.
To form a resting connection 17 between housing sections 9 and 10, two resting openings 18 are formed in the side walls 13, 13' each; to increase the flexibility of the side walls 13, 13' in the area of the resting openings 18 a slot 19 is formed in the side walls 13, 13' between each of the resting openings 18 and the adjacent side wall 12, 12'. The side walls 12, 12', 13, 13' limit opposite the deck wall 14 a mounting opening 20 for the introduction of the second housing section 10.
The second part of the housing 10 comprises four side walls 21, 21', 22, 22', of which the side walls 21, 21' and the side walls 22, 22' are opposite each other. In the side walls 21, 21', the apertures 23, 23' are formed, corresponding essentially to the openings 15, 15'. The apertures 23, 23' have a second central axis 24 in common, which overlaps the first central axis 16 in the combined state of the housing parts 9, 10 so that the apertures 15, 23 and 15', 23' are essentially the same cover. The sides 12, 13', 13', 12', 13' and 23' form on their inner side an installation exception, 21, 25', which extends from the installation opening to 20', 23', 12', 23', 23', 23', 23', 23', and 26', in a single installation period. The two parts of the mounting are in the same mounting condition, with the sides 12, 13', 13', 13', 13', 13', 13', 23', and 23' facing each other.
For the formation of the restraint connection 17, a restraint spring 27 is formed on the outside of the side walls 22, 22' which, when mounted on the housing parts 9, 10 and 18, intervene in the corresponding restraint openings. The mounting bracket 25 is adjusted to a thickness of the side walls 21, 21', 22, 22' such that the interior of the 11 has a constant width in the direction of the central longitudinal axes 16, 24 and perpendicular to the central longitudinal axes 16, 24.
On one side of the deck face 14, the second part of the housing 10 has two 28' 28' limiting steps. The 28' 28' limiting steps are located on the respective side wall 22, 22' and extend between the side walls 21, 21'. The 28' 28' limiting steps close in a straight line with the side walls 21, 21', 22, 22'. The 28' 28' limiting steps and the 21' 21' limiting side walls provide a passageway 29.
The first contact element 4 is square-shaped; the first contact element 4 has a reception chamber 30 for the second contact element 7 which is cylindrical; the reception chamber 30 is a through hole and has a centre-long axis 31.
The first contact element 4 is arranged in inner space 11 in such a way that the centre axes 16, 24 of the openings 15, 15', 23, 23' are parallel to the centre axis 31 and the reception area 30 is open to the openings 15, 15', 23, 23'. The openings 15, 15', 23, 23' have a diameter D1 corresponding at least to a diameter D2 of the reception area 30. The first contact element 4 is linearly moveable in inner space 11 perpendicular to the centre axis 31 and in the direction of the exit opening 29.so that the first contact element 4 forms a guide section 33 running in the housing 3 and a guide section 34 running through the passage 29; so that a length L1 of the interior space 11 from the deck wall 14 to the limiting steps 28 is greater than a length L2 of the guide section 33, so that the first contact element 4 can be moved perpendicular to the median longitudinal axis 31 and the deck wall 14 for the guide section 33 forms a first connection A1 to limit the movement of the first contact element 4 in a first displacement direction V1 and the limiting steps 28 a second connection A2 to limit the movement of the guide section 33 in a second opposite displacement direction V2.
At the 34th cross-section, the 6 contact elements are arranged in a single position so that the 6 contact elements can be moved with the first contact element 4 in the V1 and V2 displacement directions.
On one side facing deck wall 14, the guide section 33 has a groove 35 in the form of a sack hole in which the spring element 5 is located. The spring element 5 is located in front tension against the deck wall 14 and the guide section 33 and generates a spring force perpendicular to the median longitudinal axis 31 in the direction of displacement V2.
The connecting elements 6 are used to connect the first connecting element 4 to the circuit board mechanically and electrically. 8 The connecting elements 6 are, for example, shaped like pins.
The second contact element 7 is used to contact the first contact element 4. The second contact element 7 comprises an insertion section 36, a first clamping section 37, a contact section 38, a second clamping section 39 and a crimping section 40. The contact section 38 is cylindrical in shape and corresponds in length and diameter to the reception area 30 so that the contact section 38 can be inserted exactly into reception area 30. On either side of the contact section 38 are the clamping sections 37, 12, 39. The clamping sections 37, 39 each comprise a rotating nut 41, 41'. The respective nut 41, 41' is curved in the direction of a base and, for example, the cross section is slightly curved. The 41' 41' 41' can be rotated in the direction of the reception area 30 in the same way as the 21' 41' and 21' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 21' 12' 12' 12' 12' 12' 21' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 21' 12' 12' 21' 12' 12' 12' 21' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 21' 12' 12' 12' 21' 21' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12' 12
For insertion into housing 3, the insertion section 36 has a rejuvenating tip 42. The insertion of the second contact element 7 into housing 3 is limited by a ring-shaped plug 43 formed by the crimp section 40. For insertion into a power supply line 44, the crimp section 40 is hollow cylindrically formed at a free end and has an insertion opening 45.
The housing 3 is made of a plastic material; the contact elements 4, 7 and 6 are made of a conductive material, e.g. brass; the crimp section 40 is preferably soft-glue.
The pre-assembly of assembly 2 and the assembly of contact device 1 shall be as follows:The first contact element 5 is placed in recess 35 of the first contact element 4 and the second contact element 4 is inserted into the first housing component 9 until the first contact element 5 is attached to the deck wall 14 and the second contact element 10 is connected to the first housing component 9 to place the connecting elements 6 and the cross section 34 through the 29 through hole so that the second contact element 10 is inserted into the mounting excess 25 of the first housing component 9 and the second contact element 10 is moved in the direction of the deck 14 until the mounting element 5 is attached to the deck wall 16 and the second contact element 10 is moved in the direction of the deck wall 23 and the two access doors are connected in the 18th, 15th, 23rd and 24th, and the two access doors are connected in the 18th, 24th and 28th. The single contact element is moved in the direction of the first contact element 13 and the second contact element 13 is moved in the direction of the first contact element 13 and the two access doors are not connected in the direction of the second contact element 13 and the two access doors are not connected in the direction of the 15th, 23rd and 23rd.
To install the contacting device 1, the second contacting element 7 is connected electrically to the power supply line 44 by means of an electrical conductor, the power supply line 44 is inserted through the insert opening 45 into the crimp section 40 and is electrically clamped there by plastic deformation of the crimp section 40.
The pre-mounted assembly 2 is connected mechanically and electrically to the printed circuit board 8 by means of the connecting elements 6 by inserting the connecting elements 6 into the corresponding connecting element holes; the housing 3 is then moved in the displacement direction V1 relative to the first connecting element 4 and against the spring force of the spring element 5 in such a way that the median longitudinal axis 31 is essentially parallel to the median longitudinal axes 16, 24 and the reception area 30 to the openings 15, 23 and respectively. In this state, the second connecting element 7 is guided, starting with the spit 42 through the 15', 23', 30', and 15', 23', 23', 23', and 23', and the openings 13', 43', 13', 13', 13', 13', 13', 13', 13', 13', 13', and 130, respectively, of the first connecting element.
The housing 3 is then moved in the direction of displacement V2 relative to the first contact element 4 by means of the spring force of the spring element 5 in the direction of displacement V2, so that the side walls 15, 23 intervene in the nut 41 and the side walls 15', 23' in the nut 41', and the second contact element 7 is clamped in the direction of the median longitudinal axis 31 and perpendicular to the median longitudinal axis 31 in the reception area 30.
The electrical contact between the first contact element 4 and the second contact element 7 is disconnected in the reverse manner.
The contacting device 1 has a small number of components and is therefore simple to construct and easy to assemble or preassemble.
The following is a second embodiment of the invention described in Fig. 8. In contrast to the previous embodiment, the contacting device 1 has exactly one contacting element 6. The contacting element 6 is shaped like a thread and has an external thread 46. The contacting element 6 is inserted or inserted into an associated contacting element inlet of the printed circuit board 8 by a rotating motion. The contacting element inlet has a corresponding internal thread.
The following is a third embodiment of the invention, described in Figure 9. In contrast to the previous embodiments, the connecting element 6 is formed as a thread drill or thread extraction. The connecting element 6 has an inner thread 47. By rotating the connecting element 6 is raised or screwed up on a conductor plate wind pin 48. The conductor plate wind pin 48 is connected to the conductor plate 8 by a winding. The conductor plate pinset 48 is used as a connecting plug on the connecting element 6. With regard to the further construction and further functional direction of the contacting, the example shown in the previous example is shown.