WO2004028126A1 - Elektrische baugruppe und deren verwendung - Google Patents
Elektrische baugruppe und deren verwendung Download PDFInfo
- Publication number
- WO2004028126A1 WO2004028126A1 PCT/DE2003/003097 DE0303097W WO2004028126A1 WO 2004028126 A1 WO2004028126 A1 WO 2004028126A1 DE 0303097 W DE0303097 W DE 0303097W WO 2004028126 A1 WO2004028126 A1 WO 2004028126A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- assembly
- housing
- connections
- electrical
- components
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistors
- H05K3/301—Assembling printed circuits with electric components, e.g. with resistors by means of a mounting structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C1/00—Details
- H01C1/02—Housing; Enclosing; Embedding; Filling the housing or enclosure
- H01C1/022—Housing; Enclosing; Embedding; Filling the housing or enclosure the housing or enclosure being openable or separable from the resistive element
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/18—Automatic or semi-automatic exchanges with means for reducing interference or noise; with means for reducing effects due to line faults with means for protecting lines
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10007—Types of components
- H05K2201/10022—Non-printed resistor
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10431—Details of mounted components
- H05K2201/10507—Involving several components
- H05K2201/10537—Attached components
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/16—Inspection; Monitoring; Aligning
- H05K2203/168—Wrong mounting prevention
Definitions
- the invention relates to an electrical assembly with two electrical components. Connections are also provided for contacting the components.
- the invention further relates to the use of the assembly.
- thermistors As error protection elements in the protection of telephone lines. These thermistors, also known as PTC (positive temperature coefficient), are components whose resistance has a positive temperature coefficient. PTC increase the resistance under electrical load, which can then block this high load.
- PTC positive temperature coefficient
- the thermistor is required to protect the telephone line from unauthorized loads, such as lightning, increased voltages, contact of the telephone lines with power lines, switching overvoltages, induced voltages or the like.
- the thermistors are usually installed in a telecommunications distribution station.
- the two lines of a telephone connection are each protected separately, so two thermistors are necessary to ensure the desired protection.
- a telephone connection must be set up symmetrically. This can be achieved by matching the resistance values of the two thermistors used for the individual telephone lines.
- the electrical resistance of the thermistors at a temperature of 25 ° C. is usually used for adaptation. Since there is a certain spread in the resistance values at 25 ° C during the manufacture of the thermistors, the thermistors are sorted and delivered in so-called resistance classes after manufacture. Within a resistance class, the deviation of two resistors must not exceed a value specified by the user. Such a value can be 1 ⁇ , for example.
- both mutually matched error protection elements must be replaced in order to ensure the desired resistance adjustment in the future.
- An electrical assembly which has a housing.
- the housing contains at least two identical electrical components.
- the electrical components are matched to one another in terms of a parameter.
- the assembly has connections that are suitable for separate contacting of each individual component.
- the module has the advantage that it contains two mutually adapted electrical components, which makes it possible to mount protective elements for protecting telephone lines in one working step on a circuit board in such a way that each of the two telephone lines is connected to an electrical component of the module. This ensures that only matched electrical components are contacted on the two telephone lines of a telephone connection.
- the electrical assembly also has the advantage that the two electrical components can be assembled in a single step, which advantageously reduces the costs for the production and secured telephone lines.
- the electrical assembly has the advantage over two individual protective elements that the space requirement on the circuit board on which the electrical assembly is to be mounted is reduced.
- the two electrical components are thermistors, the resistors of which are matched to one another at a temperature. It is also advantageous if the resistors are matched to one another at a temperature of 25 ° C.
- a thermistor is to be understood as an electrical component whose electrical resistance has a positive temperature coefficient (PTC). Furthermore, the thermistor has a resistance-temperature characteristic curve, which is designed so that the resistance of the thermistor increases with temperature. When loaded, the temperature of the thermistor increases, which increases its resistance.
- PTC positive temperature coefficient
- the resistances of the two electrical components differ from one another by a maximum of 1 ⁇ .
- the two thermistors in the module belong to one and the same resistance class and are therefore suitable for mounting on a circuit board and for contacting telephone lines belonging to one and the same telephone connection.
- the top of the housing is designed so that it can be recognized with the right side of the camera. This can be ensured, for example, by the fact that the upper side has a geometric shape which is not completely symmetrical and which makes it possible to distinguish at least two different side faces of the assembly from one another. For example, it is possible to design the top of the housing in the form of a rectangle.
- the assembly is designed so that the housing is at least partially designed as a touch guard.
- a housing that functions as protection against contact is obtained, for example, by closing at least one side surface of the housing. Furthermore, it is also partial if the protection against contact is improved in that two side surfaces of the housing are closed. These two side surfaces can be, for example, the top of the housing and another side surface. In an advantageous embodiment of the assembly, the top of the housing can then be used at the same time as protection against contact and as an alignment mark for a camera.
- Cameras are usually used where circuit boards are equipped with components or assemblies from automatic placement machines.
- the camera recognizes the component that is brought up to the pick and place machine by a conveyor belt, for example. It can recognize an assembly with an alignment mark in the correct position, which ensures that the automatic placement machine grips the component in the correct orientation and can place it on the circuit board.
- connections are arranged on one side, preferably the underside, of the housing.
- the arrangement of the connections is chosen so that the assembly can be mounted on a circuit board so that it cannot rotate. Such a suitable configuration of the connections can ensure that the risk of assembly errors is further reduced.
- a partition made of insulating material can be provided between the components as a rollover protection. Such a partition can partially or completely prevent electrical flashovers between the two electrical components.
- the housing consists of a material that is hardly inflammable.
- a flame-retardant housing could, for example, consist of the material LCP (Liquid Crystal Polymer), which meets the fire protection standard UL94-V0.
- the connections are designed such that the assembly can be surface-mounted. This has the advantage that the assembly of the assembly on a board can be mounted using the powerful and economical surface mounting technology, which can further reduce the cost of producing protected telephone lines.
- the use of the assembly is also specified, the use consisting in populating a circuit board.
- the electrical components contained in the assembly are each connected to a line for the transmission of data. At least two of the lines are assigned to one and the same data terminal.
- the use described has the advantage that it is possible to connect two telephone lines with matched electrical components. This reduces the error rate when assembling boards for equipping telephone lines with elements.
- the module can also contain further components.
- Figure 1 shows an example of the assembly in a side view.
- Figure 2 shows a top view of the assembly of Figure 1.
- Figure 3 shows a side view of the assembly of Figure 1
- Figure 4 shows a bottom view of the assembly of Figure 1.
- FIG. 5 shows a circuit board which is equipped with the assembly from FIG. 1.
- FIG. 1 shows an assembly with a housing 1.
- the housing 1 has two cavities, an electrical component 21, 22 being arranged in each cavity.
- the electrical components 21, 22 are thermistors.
- the two electrical components 21, 22 are separated from one another by a partition 6.
- a rollover protection to protect against rollovers between the two electrical components 21, 22 is implemented by the partition 6.
- Connections 311, 312, 321, 322 are provided on the underside of the housing 1 and are only indicated schematically in FIG. 1. It is ensured that the connections 311, 312, 321, 322 are designed such that each of the electrical components 21, 22 can be contacted separately. This is achieved, for example, by assigning the two connections 311, 312 to the electrical component 21 and the two connections 321, 322 to the electrical component 22. In the simplest case, two connections 311, 312; 321, 322 contacted with the external contacts of one component 21, 22, respectively.
- Figure 2 shows a view from above of the component of Figure 1. It can be seen that the housing 1 forms the contour of a rectangle 4 on the top. It can also be seen that the housing 1 on the top of the assembly is closed. Since the top of the housing 1 has the shape of a rectangle 4, it can be recognized by a camera in the correct position. A rectangle has the property that the pages are not all the same length. Rather, there are short pages and longer pages. Due to the different side lengths, the position of the component can be recognized by a camera. In addition, the housing 1 is closed on the top. This provides protection against accidental contact from above.
- the upper surface of the housing 1 contains a defined flat engagement surface for the suction device of an automatic placement machine.
- a suitable contact surface is obtained from the top according to FIG. 2.
- the flat portion of the total surface of the top can, however, also be chosen to be smaller, depending on the suction device.
- FIG. 3 shows the assembly in side view, two connections 321, 322 being recognizable in addition to the housing 1 and a further closed side of the housing 1.
- the two connections 321, 322 are led out on the underside of the housing 1 and, after a short distance section, are bent outwards so that the two connections can be surface-mounted on a circuit board.
- the two bent sections of the connections 321, 322 lie approximately in one plane.
- the connections 311, 312 can be formed in an analogous manner, the connections 311, 312 also having sections bent outwards or inwards, and the bent sections of all connections 311, 312, 321, 322 lying approximately in one plane to ensure the surface mountability of the component.
- the connections can consist of copper, for example.
- the housing can be made of plastic, for example.
- FIG. 4 shows a view from below of the assembly, where the configuration of the connections 311, 312, 321, 322 already described for FIG. 3 is described in more detail.
- the connections 311, 312, 321, 322 are arranged in such a way that the component is can be mounted non-rotatably on the board.
- the underside of the assembly can be soldered 90 ° in the positive or negative direction relative to the position shown in FIG. 4 and in the correct position.
- FIG. 5 shows a circuit board 5 on which a central unit 9 is arranged.
- a so-called line card as is typically used in telecommunications applications, can be used as the board 5.
- line cards are combined in a data interface, for example a local exchange, and interconnected.
- Each line card carries a central unit 9.
- Such a central unit 9 can, for example, be a switching logic which interconnects different telephone connections.
- Data terminals 8 are connected to the circuit board 5 via lines 71, 72.
- a pair of lines 71, 72 usually belongs to each data terminal 8.
- a private telephone connection can be considered as the data terminal 8, for example.
- a protective circuit is provided between each connection of a data terminal 8 and the central unit 9, which, as already discussed above, protects the data terminal 8 from lightning strikes, overcurrents and so on.
- Protective circuits can include gas surge arresters, Zener diodes or other suitable components. It also includes, in particular, the assembly described in FIGS. 1 to 4, in multiple versions, so that an assembly 10 of this type is available for each data terminal 8.
- Each assembly 10 contains a pair of electrical components 21, 22, which are, for example, PTC resistors. Each assembly 10, each electrical component 21, 22 is connected in series to a respective line 71, 72, which leads to the corresponding data terminal 8.
- the assembly 10 can, for example, be soldered to the circuit board 5 by surface mounting.
- the board 5 or the line card can also be connected to other line cards or distributors instead of the data terminals 8.
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Signal Processing (AREA)
- Manufacturing & Machinery (AREA)
- Telephone Set Structure (AREA)
- Thermistors And Varistors (AREA)
- Telephone Function (AREA)
Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP03797180A EP1540928A1 (de) | 2002-09-17 | 2003-09-17 | Elektrische baugruppe und deren verwendung |
| US10/528,040 US20060139831A1 (en) | 2002-09-17 | 2003-09-17 | Electrical subassembly and use thereof |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10243113A DE10243113A1 (de) | 2002-09-17 | 2002-09-17 | Elektrische Baugruppe und deren Verwendung |
| DE10243113.2 | 2002-09-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2004028126A1 true WO2004028126A1 (de) | 2004-04-01 |
Family
ID=31969154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE2003/003097 Ceased WO2004028126A1 (de) | 2002-09-17 | 2003-09-17 | Elektrische baugruppe und deren verwendung |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20060139831A1 (de) |
| EP (2) | EP2012513A3 (de) |
| CN (1) | CN1682521A (de) |
| DE (1) | DE10243113A1 (de) |
| WO (1) | WO2004028126A1 (de) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1921636A3 (de) * | 2006-11-10 | 2009-01-14 | Epcos Ag | Elektrische Baugruppe mit PTC-Widerstandselementen |
| EP1921637A3 (de) * | 2006-11-10 | 2009-01-14 | Epcos Ag | Elektrische Baugruppe mit PTC-Widerstandselementen |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005010342A1 (de) * | 2005-03-07 | 2006-09-14 | Epcos Ag | Induktives Bauelement |
| DE102007042358B3 (de) * | 2007-09-06 | 2008-11-20 | Epcos Ag | Elektrische Schutzvorrichtung |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0388022A2 (de) * | 1989-03-15 | 1990-09-19 | Nortel Networks Corporation | Festkörperbauteil zum Schutz gegen Überstrom |
| EP0472405A2 (de) * | 1990-08-21 | 1992-02-26 | Texas Instruments Incorporated | Schutzvorrichtung für Telekommunikationsanlage |
| US5410596A (en) * | 1990-10-01 | 1995-04-25 | Siecor Corporation | Station protector module for network interface device |
| US5867083A (en) * | 1995-06-29 | 1999-02-02 | Murata Manufacturing Co., Ltd. | Protective device for surge current protection of associated equipment in communications systems |
| US6040972A (en) * | 1996-10-22 | 2000-03-21 | Murata Manufacturing Co., Ltd. | Protection device for communication |
| EP1120949A1 (de) * | 2000-01-27 | 2001-08-01 | Mecelec Industries | Strombegrenzungsschaltung und Gerät und Fernsprechanlage mit einem solchen Gerät |
| FR2811153A1 (fr) * | 2000-07-03 | 2002-01-04 | Cit Alcatel | Limiteur de courant pour ligne telephonique |
| US6407901B1 (en) * | 1999-04-19 | 2002-06-18 | Teccor Electronics, Lp | Semiconductor device providing overvoltage and overcurrent protection for a line |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4203006A (en) * | 1978-04-20 | 1980-05-13 | Prentice Corporation | Direct access coupler |
| USD292089S (en) * | 1985-01-28 | 1987-09-29 | Tii Industries, Inc. | Protection housing for telecommunication equipment or the like |
| GB2224402B (en) * | 1988-10-17 | 1993-06-02 | Gte Prod Corp | Solid state station protector device |
| DE4340594C2 (de) * | 1992-12-01 | 1998-04-09 | Murata Manufacturing Co | Verfahren zur Herstellung und zum Einstellen der Charakteristik eines oberflächenmontierbaren chipförmigen LC-Filters |
| TW421413U (en) * | 1994-07-18 | 2001-02-01 | Murata Manufacturing Co | Electronic apparatus and surface mounting devices therefor |
| JPH08241802A (ja) * | 1995-03-03 | 1996-09-17 | Murata Mfg Co Ltd | サーミスタ装置及びその製造方法 |
| DE29623021U1 (de) * | 1996-09-09 | 1997-09-25 | Siemens Matsushita Components GmbH & Co. KG, 81541 München | Gepaarter Doppel-Kaltleiter |
| JPH11125641A (ja) * | 1997-10-21 | 1999-05-11 | Miyota Kk | センサ及び回路基板 |
| CN1319079C (zh) * | 2000-01-11 | 2007-05-30 | 泰科电子有限公司 | 电气装置和电组件及数字信号的电信电路 |
| DE10109828A1 (de) * | 2001-03-01 | 2002-09-05 | Xcellsis Gmbh | Elekrische Temperaturmessvorrichtung |
-
2002
- 2002-09-17 DE DE10243113A patent/DE10243113A1/de not_active Ceased
-
2003
- 2003-09-17 EP EP08166908A patent/EP2012513A3/de not_active Ceased
- 2003-09-17 EP EP03797180A patent/EP1540928A1/de not_active Ceased
- 2003-09-17 CN CN03822094.6A patent/CN1682521A/zh active Pending
- 2003-09-17 WO PCT/DE2003/003097 patent/WO2004028126A1/de not_active Ceased
- 2003-09-17 US US10/528,040 patent/US20060139831A1/en not_active Abandoned
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0388022A2 (de) * | 1989-03-15 | 1990-09-19 | Nortel Networks Corporation | Festkörperbauteil zum Schutz gegen Überstrom |
| EP0472405A2 (de) * | 1990-08-21 | 1992-02-26 | Texas Instruments Incorporated | Schutzvorrichtung für Telekommunikationsanlage |
| US5410596A (en) * | 1990-10-01 | 1995-04-25 | Siecor Corporation | Station protector module for network interface device |
| US5867083A (en) * | 1995-06-29 | 1999-02-02 | Murata Manufacturing Co., Ltd. | Protective device for surge current protection of associated equipment in communications systems |
| US6040972A (en) * | 1996-10-22 | 2000-03-21 | Murata Manufacturing Co., Ltd. | Protection device for communication |
| US6407901B1 (en) * | 1999-04-19 | 2002-06-18 | Teccor Electronics, Lp | Semiconductor device providing overvoltage and overcurrent protection for a line |
| EP1120949A1 (de) * | 2000-01-27 | 2001-08-01 | Mecelec Industries | Strombegrenzungsschaltung und Gerät und Fernsprechanlage mit einem solchen Gerät |
| FR2811153A1 (fr) * | 2000-07-03 | 2002-01-04 | Cit Alcatel | Limiteur de courant pour ligne telephonique |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP1540928A1 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1921636A3 (de) * | 2006-11-10 | 2009-01-14 | Epcos Ag | Elektrische Baugruppe mit PTC-Widerstandselementen |
| EP1921637A3 (de) * | 2006-11-10 | 2009-01-14 | Epcos Ag | Elektrische Baugruppe mit PTC-Widerstandselementen |
| US7928828B2 (en) | 2006-11-10 | 2011-04-19 | Epcos Ag | Electrical assembly with PTC resistor elements |
| US7986214B2 (en) | 2006-11-10 | 2011-07-26 | Epcos Ag | Electrical assembly with PTC resistor elements |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2012513A3 (de) | 2010-02-24 |
| EP2012513A2 (de) | 2009-01-07 |
| DE10243113A1 (de) | 2004-04-01 |
| EP1540928A1 (de) | 2005-06-15 |
| CN1682521A (zh) | 2005-10-12 |
| US20060139831A1 (en) | 2006-06-29 |
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