MODULE WITH ELECTRONIC COMPONENTS

Abstract

A module with electronic components mounted on a carrier and electrically interconnected in accordance with a predefined circuit. Such a module, distinguished by particular variability, ease of assembly, compactness and applicability for high currents, is characterized in that the carrier is an injection molded plastic part (1), into which flat connectors (3) for receiving the components may be inserted.

Description

[0001] This application is based on and claims the benefit of German Patent Application No. 198 17 850.6 filed Apr. 22, 1998, which is incorporated by reference herein.

BACKGROUND OF THE INVENTION

[0002] The invention relates to a module with electronic components in accordance with the preamble of claim 1.

[0003] Modules with electronic components for mass products must be easy to assemble and cost effective on the one hand, and permit problem-free changes or improvements despite a large number of variants on the other hand. It is known that a printed circuit board is used to carry different components. The components are assembled and soldered onto the board to form a module. The disadvantage, in addition to the significant assembly and material costs, is primarily that the cross section of the solder paths is restricted to relatively small values. As a result, the printed circuit board variant has limited application for high currents in the ampere range. In addition, either very large distances between the individual components or additional insulation strips are required. The reject rate is relatively high, since printed conductors may be torn loose during soldering. To realize different circuits and component dimensions, special boards are required.

SUMMARY OF THE INVENTION

[0004] An object of the invention is to define a module with electronic components of the generic type, which is distinguished by its variability, ease of assembly, cost savings, applicability for higher currents and reduced reject rate.

[0005] According to the invention, this object is attained by the characteristic features of claim 1. The injection molded plastic part is substantially cheaper than the printed circuit board and makes it possible to implement shapes of any kind without problems. The flat connectors for receiving the components can be inserted in the injection molded plastic part in a technologically simple manner. This eliminates solder paths and soldered connections. High currents can be realized without hesitation. Depending on the positioning of the connectors, very different circuits can be assembled on an injection molded plastic part.

[0006] The flat connectors are preferably designed to be capable of being pressed into the injection molded plastic part in accordance with claim 2. This facilitates assembly and provides a robust module that is largely protected against mechanical damage.

[0007] Claim 3 defines an advantageous embodiment for fixing the flat connectors to the injection molded plastic part. The feet shapes of the flat connectors, in conjunction with corresponding indentations in the injection molded part and adapted particularly for a press fit, guarantee a solid and, where necessary, nevertheless detachable connection between the flat connectors and the injection molded plastic part.

[0008] For this purpose, the feet shapes are advantageously provided with L-shaped bends in accordance with claim 4. These bends and possibly barb-like feet shapes permit simple and correct orientation during assembly of the non-symmetrical flat connectors in conjunction with a highly robust snug fit.

[0009] According to claim 5, the flat connectors are preferably equipped with standard flat connector lugs. With respect to the receptacles of various components, the lugs can have a cross-section of, for example, 2.8 mm by 0.8 mm. Other dimensions are also possible, however, whereby the standard longitudinal dimension of the cross section can be staggered 4.8 mm, 6.3 mm, etc.

[0010] The insulation ridges between the flat connector lugs according to claim 6 result in a highly compact design of the module. Since the insulation ridges, as well as all the other shapes of the injection molded plastic parts, can be predefined by the die, separate assembly of these insulation ridges—in contrast to the printed circuit board variant—falls away.

[0011] Claim 7 provides for the components to be advantageously arranged on both sides of the injection molded part. The electrical connection between the two sides may be realized, for example, by two soldered joints that connect the connector feet and the connections of the components to be mounted on the opposite side.

[0012] For example, according to claim 8, components for a motor circuit may be mounted on the one side and a relatively large capacitor on the other. Such a module is known in the form of a wiring unit with capacitor for a motor for venetian blinds, particularly a venetian blind motor with a medium-high rating.

BRIEF DESCRIPTION OF THE DRAWING

[0013] The invention will be more clearly understood from the description below in conjucntion with the accompanying drawings, wherein:

[0014] FIG. 1a is a sectional representation along Line A-A of FIG. 1b of a module according to the invention,

[0015] FIG. 1b is a front view of the module with partial cut-away,

[0016] FIG. 1c is a sectional representation along line B-B in FIG. 1b and

[0017] FIG. 1d is a top view of the module.

DETAILED DESCRIPTION OF THE INVENTION

[0018] The module depicted in FIGS. 1a through 1d forms part of a venetian blind motor of medium-high rating. The module essentially comprises an injection molded part 1, a capacitor 2 soldered onto the undersurface of the injection molded part 1 and flat connectors 3 mounted on the top surface. Flat connectors 3 with feet shapes 5 are pressed into corresponding indentations 4 in the injection molded part 1. Between the flat connectors 3, insulation ridges 6 are arranged which rise above the flat connector lugs 7 and are shaped as part of the injection molded plastic part 1. Connector lugs 7 serve to receive corresponding receptacles of non-depicted components such as, for example, coils and circuits. This injection molded part 1/flat connector 3 embodiment makes the module highly compact, robust and equally suitable for a variety of circuits and module dimensions.

[0019] The invention is not limited to the above-described exemplary embodiment. A number of variants are feasible, which make use of the inventive features even though their basic embodiment may be different.

Claims

1. A module with electronic components mounted on a carrier and electrically interconnected in accordance with a predefined circuit, characterized in that the carrier is an injection molded plastic part (1), into which flat connectors (3) for receiving the components may be inserted.

2. A module according to claim 1 characterized in that the flat connectors (3) can be pressed into the injection molded plastic part (1).

3. A module according to claim 1 characterized in that the injection molded plastic part (1) is provided with indentations (4) for feet shapes (5) of the flat connectors (3).

4. A module according to claim 3 characterized in that the feet shapes (5) have L-shaped bends.

5. A module according to claim 1 characterized in that the flat connectors (3) are provided with standard flat connector lugs (7).

6. A module according to claim 5 characterized in that the injection molded plastic part (1) has insulation ridges (6) rising between the flat connector lugs (7).

7. A module according to claim 1 characterized in that the injection molded plastic part (2) is designed to be equipped with components on both sides.

8. A module according to claim 7 characterized in that the injection molded plastic part (1) is designed to have pressed-in flat connectors (3) for receiving components for a motor circuit on the one side and a capacitor (2) soldered onto the other side.