DE2330918A1 - Electromagnetic contactor with split housing - has housing halves firmly coupled to contactor coil former - Google Patents

Abstract

The contactor housing consists of two half shelves which are firmly connected and locked to the coil former of the contactor arranged within. The coil former has lugs symmetrically formed parallel to the dividing plane, engaging behind corresponding lugs on the inner side of the half shelves. Between the coil former and a rib on the half shelves may be inserted a spring which may be mounted in the coil flange in a manner preventing its loosening and securing the coil former in a locked position. The lugs of both the coil former and the half shelves may have oblique running up surfaces. The entire assembly is made of suitable plastics.

Description

YBB Kombinat switching electronics
Directorate area
science and technology
8030 Dresden, Sternstrasse 35

Electromagnetic contactor with a housing consisting of two half-shells

The invention relates to an electromagnetic contactor Housing consisting of two half-shells, in which the half-shells can be joined together without additional connecting elements are connected"

It is already known, electromagnetic contactors in shell construction by means of screws, leaf springs in Fora to hold a bracket or spring steel rings together These versions have the disadvantage that add additional fasteners to the shells on the one hand, and on the other. Assembly time for attaching the fasteners must be applied * In addition, the arrangement of these elements often prepares; spatial difficulties " This is particularly true for smaller switching devices, such as small contactors. "

Here, the use of additional connecting elements often causes an undesirable increase in the base area.

Ss is also known to be attached to thermoplastic housing ooles To attach hasty elements. The housing halves are connected by pressing together a solution of this type has the advantage that no additional connecting elements are required «

409832/0619 - 2 -

However, if the housing is ^{made of} Duroplast, this variant cannot be used, as the required »resilient locking elements would easily break off.

The object of the invention is to ensure the connection of the housing shells without additional connecting elements through existing components

The object is achieved in that the Half-shells of the housing are positively connected and locked with a coil body arranged in them « In such a solution, no additional connecting elements are required for the connection of the halves of the housing more needed »

This effect is advantageously achieved in that lugs symmetrically on the coil body parallel to the parting plane are integrally formed, which grip behind corresponding lugs on the inside of the half-shells of the housing · As a result the half-shells of the housing are positively connected and locked against forces acting perpendicular to the cable plane.

The effect is particularly pronounced when body and a hip of the half-shells each arranged is · The peder is required to the lugs of the bobbin to hold in the bending position Coil body and half-shells of the housing, whereby the half-shells are firmly attached to one another in the area of the switch room. The spring is held captive in the spool flange and holds; the bobbin in the locking position · The captive Storage is required because the eder cannot be held when the half-shells of the housing are pressed together. " Bs is advantageous if the lugs of the coil former and the lugs of the housing shells have inclined contact surfaces

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Because the upper approaches to the half-necks of the If the housing and the coil body have such contact surfaces, manufacturing tolerances of the pressed parts will be eliminated. equaled

lin another feature of the invention is that the The bobbin is made of thermoplastic, the housing shells are made of Duroplast are made by the fact that the coil body is made of thermoplastic exists, it is achieved that the stress that occurs especially when the half-shells are pressed together is not for the Canceling the approaches leads »

The invention is intended below using an exemplary embodiment are explained in more detail · Xn show in the accompanying drawing »

Fig. 1 shows a section A-A according to Fig. 3 through the inventive Contactor,

Pig. 2 shows a section B-B according to FIG. 3, in which the side view of the contactor was shown

3 shows a section C-C according to Mg · 1, in which the upper Approaches are recognizable.

The housing is divided in the middle in the lifting direction in a known manner, the two half-shells 1 being completely symmetrical are formed »The coil 2 penetrates in equal parts into the half-shells 3 eia. Half-Sohale 1 and Spool 2 are provided with lugs · The lugs 3 »4 are on the inside of the half-soaps · The bobbin 2 wear! the Approaches 5; 6 · The lugs 5 engage during assembly; 6 of the bobbin 2, starting from the parting plane of the contactor, behind the lugs 3j 4 of the housing and are through the Spring 7 held in a locking position. The top junction between the half-shells 1 and the coil body is shown again in Fig. 3 »The approaches 3; 5 own inclined contact surfaces. This is necessary so that the half-shells 1 despite their own manufacturing tolerance in the area of the switch room must be pulled together tightly.

409882/0619 - 4 ~

The necessary contact pressure is brought about by the spring 7, which is mounted captively in the flange of the coil body 2 and acts parallel to the filing plane. The arrangement and mode of operation of the spring 7 are shown in FIG. at the lower connection points between the half-shells 1 and the bobbin 2 run the contact surfaces of the Approaches 4; 6 parallel balanced · The rubber 8, which is inserted into recesses in the housing, presses the half-shells 1 apart, see above that the contact surfaces of the approaches 4; 6 are pressed tightly together · The more or less that is caused by this However, the large gap between the half-shells 1 in the area of the magnetic core is not a problem, since it is in this zone anyway There are several openings · The forces occurring during and after the half-shells 1 are pressed together between the approaches do not lead to breakage phenomena at the approaches, in particular the coil body », since the half shells 1 are made of thermoset, but the bobbin 2 is made of! Thermoplastic

409882 / G619

Claims (1)

Claims t * * * Electromagnetic protection with two halves existing housing, characterized in that the half-shells (O of the housing with a Bobbins (2) are positively connected and locked » 2 «sheet-metal magnetic contactor according to claim: 1, characterized characterized in that lugs (5; 6) are formed symmetrically on the coil body (2) parallel to the parting plane, the one behind corresponding approaches (3i 4) on the inside the halves (1) of the housing grip 3 Sheet-metal magnetic contactor according to Claims 1 and 2, characterized in that between the coil body (2) and one rib of the half-shells (1) a peder C7) on « is ordered 4 · Electromagnetic contactor, according to claim 1 to 3 » characterized in that the spring (7) in the Spulenflanseh is captive and holds the spool body (2) in the locking position 5 · Electromagnetic sole plate according to claim 1 to 4, characterized in that the lugs (5) of the coil · * · body (2) and the lugs (3) of the housing shells (1) have inclined contact surfaces 6 «electromagnetic contactor according to claim 1 to 5, characterized in that the coil body (2) is made of thermoplastic, whereas the housing shells (1) are made of Consist of duroplast * - 1 sheet of drawings «· 409882/0819