Housings for electrical components and methods for connecting a housing body to a housing cover

Abstract

Housing for electrical components comprising a housing body (1) in which components are arranged on a base plate (2), and a housing cover (3), wherein the housing cover (3) is attached to the base plate (2) by crimp tabs (3.1) which are bent over so that the housing cover (3) is positively connected to the base plate (2), wherein an edge region of the base plate (2), on which the bent crimp tabs (3.1) rest, projects beyond a bearing surface of the housing body (1), wherein additional crimp tabs (3.2) are designed as extended crimp tabs (3.2) which partially enclose flat body surfaces of the housing body (1) resting on the base plate (2).

Description

[0001] The invention relates to a housing with a housing body in which components are arranged on a base plate, and with a housing cover.

[0002] The invention further relates to a method for connecting the housing to the housing cover.

[0003] The invention is particularly suitable for the housing of control electronics in motor vehicles.

[0004] Particularly in the field of power electronics, electrical and electronic components are provided with a housing which is tightly closed with a housing cover.

[0005] Various connection methods are commonly used to attach the housing cover to the housing. In addition to screw and rivet connections, crimp connections are also used.

[0006] DE 10 2011 086 896 A1 describes an electrical component with a housing from which a connection pin protrudes. The connection pin is electrically connected to a printed circuit board by means of through-hole mounting. The part of the connection pin protruding from the housing is surrounded by an elastic material that is fluid-tightly connected to the housing.

[0007] US 2015 / 0373867 A1 discloses an electronics housing comprising a first housing portion and a bending portion formed integrally with the first housing portion, and a second housing portion formed integrally with the bending portion, wherein the bending portion is configured to be bent from an initial position to a final position, wherein the first and second housing portions cooperate to form an internal cavity therebetween when the bending portion is in the final position.

[0008] The invention is based on the object of improving a housing and a method of the type mentioned at the beginning.

[0009] According to the invention, the object is achieved with a housing which has the features specified in claim 1 and with a method which has the features specified in claim 5.

[0010] Advantageous embodiments are the subject of the subclaims.

[0011] The housing has a housing body secured to a base plate on which electrical and / or electronic components are arranged. The base plate is connected to a housing cover. The housing cover is attached to the base plate with crimp tabs that are bent over so that the housing cover is positively connected to the housing body. An edge of the base plate protrudes over the support surface of the housing body, where the bent crimp tabs rest.

[0012] In an advantageous embodiment, some of the crimp tabs are designed as extended crimp tabs. The extended crimp tabs enclose the base plate and vertical surfaces of an additional component resting on the base plate, with their ends resting on horizontal surfaces of the housing body.

[0013] In a further advantageous embodiment of the housing, a printed circuit is arranged on the base plate.

[0014] The procedure for connecting a housing for electrical components with a housing cover is carried out as follows: After preparing a housing, which consists of a housing body and a base plate, a housing cover is manufactured. Lateral crimp tabs are arranged on the housing cover so that, after a crimping process, they rest on corresponding flat surfaces of the base plate. The housing cover is attached to the housing body by plastically deforming the lateral crimp tabs. In an advantageous embodiment of the method, additional extended crimping tabs are arranged on the side of the housing cover in such a way that, after a joining process by means of crimping, they rest on corresponding flat surfaces of the housing body and / or another component.

[0015] The housing cover is preferably manufactured by punching a sheet metal part.

[0016] The invention is explained in more detail below using an exemplary embodiment. The accompanying drawings show: Fig. 1 a perspective view of a housing in which the housing cover is crimped exclusively to the base plate, Fig. 2 a perspective view of a housing in which the housing cover is additionally crimped to an additional component, and Fig. 3 the top view of the Fig. 2 housings shown.

[0017] The Fig. The housing shown in Figure 1 consists of a housing body 1 having a base plate 2 on which a printed circuit is mounted and on which electrical and / or electronic components are arranged. Located beneath the base plate 2 is the housing cover 3, to the outer sides of which crimp tabs 3.1 are attached, which are plastically deformed so that they enclose the base plate 2 and rest on its upper side. This tightly secures the base plate 2 to the housing body 1. An additional component 4 is attached to the base plate 2 with a separate connection. The additional component 4 can serve, in particular, to accommodate and guide connecting cables for the printed circuit. For example, a connector assembly can be housed there.In order to enable the fastening of the housing cover 3 to the base plate 2 in the area in which the additional component 4 rests on the base plate 2, the base plate 2 must have a projection on which the ends of the bent crimp tabs 3.1 rest.

[0018] In the Fig. In the housing shown in perspective view in Figure 2, the housing cover has, in addition to the crimp tabs 3.1, extended crimp tabs 3.2. These extended crimp tabs 3.2 secure the housing cover 3 to the base plate 2 and the additional component 4. An overhang of the base plate 2 is not required. This allows the entire housing assembly to be downsized, thus enabling a reduction in installation space. Furthermore, it can optimize the layout of the printed circuit board.

[0019] In Fig. 3 is the top view of the Fig. The housing design explained in section 2 is shown. List of reference symbols 1 housing body 2 base plate 3 Housing cover 3.1 Crimp tab 3.2 extended crimp tab 4 Additional component

Claims

[1] Housing for electrical components with a housing body (1), in which components are arranged on a base plate (2), and with a housing cover (3), wherein the housing cover (3) is fastened to the base plate (2) by crimping tabs (3.1) which are bent over in such a way that the housing cover (3) is positively connected to the base plate (2), wherein an edge region of the base plate (2), on which the bent over crimping tabs (3.1) rest, projects beyond a bearing surface of the housing body (1), wherein additional crimping tabs (3.2) are designed as extended crimping tabs (3.2) which partially enclose flat body surfaces of the housing body (1) resting on the base plate (2). [2] Method for connecting a housing for electrical components to a housing cover (3), characterized by following procedural steps: - Providing a housing body (1) for electronic components with a base plate (2), - producing a housing cover (3), the base surface of which corresponds to a base surface of the base plate (2) of the housing body (1), wherein lateral crimping tabs (3.1) are arranged on the housing cover (3) in such a way that they rest on corresponding flat surfaces of the base plate (2) after a joining process by means of crimping, - Fastening the housing cover (3) to the base plate (2) by plastically deforming the lateral crimp tabs (3.1), wherein additional lateral extended crimping tabs (3.2) are arranged on the housing cover (3) in such a way that, after a joining process by means of crimping, they rest on corresponding flat surfaces of the housing body (1) and / or an additional component (4).

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