BE1030623A1 - Device and method for housing electrical devices - Google Patents

Abstract

According to a first aspect, a housing (10) for accommodating an electrical circuit (26) comprises a first housing part (20) with a rectangular housing base (22) and a first side wall (24) extending vertically at a first end of the housing base (22). ; a second housing part (40) with a rectangular housing ceiling (42) and two mutually parallel second side walls which extend perpendicularly from the housing ceiling on opposite edges of the housing ceiling (42), the housing base (22) and the housing ceiling (42) being parallel, and the first side wall (24) is perpendicular to the second side walls, and wherein the housing cover (42) has at least one connecting tab (45) at the first end, with which the first side wall (24) is mechanically connected or connectable by a connecting element (46). is; and a third housing part (60), which can be attached to a second end opposite the first end for mechanical connection to the housing base (22), the second side walls and the housing ceiling (42).

Description

Device and method for housings for electrical devices BE2022/5465

The invention relates to a technique for designing a housing for an electrical

Device. Without being limited thereto, the invention relates in particular to a housing for

Recording an electrical circuit with an optimized assembly connection for

Sheet metal housing parts of electrical devices.

Housings for electrical devices are subject to a variety of requirements. This ranges from the

Recording the electrical circuit, the arrangement of electrical and mechanical connections, the fulfillment of the relevant safety standards, the mechanical stability requirements for the housing and others. To fulfill this

A variety of designs come into consideration, which generally consist of a number of housing elements and electrical components. The

Housing elements are made from a variety of materials, including various metal and plastic versions. In particular, a large number of connecting and connecting parts are used to connect the various housing parts

Positioning elements are used, some of which are already part of the housing elements, and some of which are also designed as additional fasteners. In particular, screws that have a high mechanical strength are used as additional fasteners

Guarantee the strength of the connection and also as an electrical one

Connecting elements can serve.

However, the construction of the housing described above often leads to complex assembly of the devices, especially with at least three housing parts. This is due, among other things, to a number of fasteners, for example screws, which are used at several points on the housing in different orientations, particularly for the required stability of the devices. It is particularly time-consuming during production to mount housing screws in different assembly directions - i.e. with different axes of rotation. This increases the complexity of the

Assembly process significantly, slows it down at the same time and increases assembly costs.

The invention is therefore based on the object of specifying a technology that realizes a housing that meets the above requirements and has at least three housing parts for an electrical device that is as easy to assemble and therefore as cost-effective as possible.

It is particularly desirable to minimize the number of mounting directions of the screws used, since the mounting effort increases with each additional one

Mounting direction increases significantly.

The task is solved with the features of the independent claims. Useful BE2022/5465

Refinements and advantageous developments of the invention are in the dependent

Claims stated.

Embodiments of the invention, which can be optionally combined with one another, are in

Disclosed below with partial reference to the figures.

A first aspect relates to a housing for accommodating an electrical circuit. The

Housing is composed of at least three housing parts. A first includes

Housing part has a rectangular housing base and one at a first end of the

Housing base vertically extending first side wall. The housing part can be made of metal, preferably of a metal sheet. The metal sheet can be made of aluminum or steel, for example stainless steel. Alternatively, the housing part can also be made of

Plastic consists of, for example, thermoplastic material. This can be done

Thermoplastics PES, PSU, PC, PPE, PVC, PMMA, PS, SAN, ABS, LCP, PEEK, PA, PET, PA,

Include PBT, POM, TPU, PE and PP. The housing base and the first side wall can be integrally formed in one piece. For example, the two surfaces can be made from a piece of metal through a bending process.

A second housing part comprises a rectangular housing ceiling and two mutually parallel, perpendicular from the housing ceiling on opposite edges

Housing ceiling extending second side walls. The housing base and the housing ceiling are arranged parallel. In the assembled state of the first

Housing part and the second housing part is the first side wall of the first

Housing part arranged perpendicular to the (two) second side walls of the second housing part. The housing cover has at least one connecting tab at the first end, with which the first side wall is mechanically connected or connectable by a connecting element. The connecting element can be designed as a screw, a rivet, a clip or in another form. The second housing part can be made of the same metal or plastic as the first housing part. The three can go further

Surfaces of the second housing part can be made from a piece of metal by a bending process.

The housing further comprises a third housing part which can be attached to a second end opposite the first end. The third housing part is for mechanical connection to the housing base, the second (two).

Side walls and the housing ceiling are provided. Its material can consist of plastic, preferably thermoplastic material, more preferably one of the types mentioned above. The third housing part can be designed as a front and/or control element that accommodates signaling elements and/or accommodates connecting elements BE2022/5465. Alternatively, it can be made of metal, in particular a metal of the above-mentioned types.

Advantageously, only one mounting direction is required for the connecting element at the first end, which allows the housing to be mounted easily. For example, the mechanical connection between the first and second housing parts at the second end can be achieved simply by attaching the third housing part, and the mechanical connection between the first and second housing parts at the first end can be achieved by mounting in one

Mounting direction.

In each exemplary embodiment, the connecting element can be designed as a screw.

The screw may be a secured screw. This allows, for example, a UL

Approval (according to “Underwriters Laboratories”) of the device can be achieved. It can then be designed as a combination screw. Alternatively, the screw can also be used as a

Countersunk screws may be used if the screw does not need to be secured or the screw head is undesirable due to space constraints. The can

Housing ceiling have at least two connecting tabs at the first end. The

The mounting direction of both screws can be identical. Furthermore, the first housing part, the second housing part and the third housing part can each be made integrally in one piece.

For example, the housing ceiling can have at least two at the first end

Have connecting tabs, each of which is designed to receive a screw in a mounting direction, the mounting direction of the screws being identical.

A reliable connection of the two housing parts can thus advantageously be achieved, whereby both safety aspects and construction aspects can be taken into account by using different types of screws.

The first side wall can have at least one depression at the first end. This

Recess is designed to accommodate one of the connecting tabs of the housing cover. Accordingly, with two connecting straps, two recesses can be used

Receiving a connecting tab can be formed. Optionally, the recess can be designed such that the connecting tabs are arranged flush with the first side wall on the outside.

A compact design of the housing with flat external surfaces can thus advantageously be ensured.

N. . -LR. . . . . BE2022/5465

The first housing part and the second housing part can each be electrically conductive.

Furthermore, the connecting tab of the second housing part can be electrically conductively connected to the first side wall of the first housing part. This can be improved by using a conductive connector when without electrical

Insulation mechanically connects the connecting tab to the first side wall.

Advantageously, an electrical potential difference between the first housing part and the second housing part can be avoided and separate grounding measures for the

Housing parts can be omitted.

The second side walls can also have opposite edges

Make the housing base flush. Alternatively or additionally, the first side wall can be flush with an edge of the housing ceiling at the first end. Alternatively or additionally, an edge of the opposite second one can be at the first end

Side walls rest against an edge of the first side wall.

Advantageously, the mechanical stability of the housing can be increased, while at the same time a large-area electrical contact is achieved, which is in a way

Faraday cage shields the electrical circuit arranged in the housing from external electromagnetic influences.

The housing base can have eyelets that bulge in the plane of the housing base on opposite edges of the housing base. The second ones can go further

Side walls each have at least one finger, which engages or can be inserted into one of the eyelets. Finally, the eyelets can optionally be flush with the second ones on the outside

Be side walls.

Advantageously, the mechanical stability of the housing can be further increased, in particular the fixation of the side walls in relation to the housing base. At the same time, the electrical contact between the side walls and the housing base is improved, which is secured even if the housing is twisted.

The at least one finger can be arranged outside a plane of the respective second side wall. Furthermore, one of the eyelets on the housing base can be in one with the

Finger corresponding recess of the respective second side wall can be arranged.

Advantageously, bulges can be created on the opposite edges of the

Housing bottom can be avoided and a flat housing edge can be achieved.

The mechanical connection of the third housing part with the housing base, the second side walls and the housing ceiling can be designed without a separate connecting element. For example, it can be designed without screws, rivets or clips BE2022/5465.

Advantageously, assembly can be simplified by using only a few fasteners, although the assembly of further fasteners would obviously require 5 additional assembly directions, which would entail additional assembly effort.

The second side walls can each have at least one punching bridge at the second end, into which guide retaining pins projecting from the third housing part engage or can be inserted. Furthermore, the housing ceiling can have at least one at the second end

Have punching bridges, into each of which there is a cantilevered part on the third housing part

Guide retaining pin engages or can be inserted. The punched bridges can be

inside of the housing. The projecting guide retaining pins can be arrow-shaped

Have a shape that becomes stronger towards the third housing part.

Advantageously, a stable fixation between the connected housing parts can be achieved, which can be implemented cost-effectively and, moreover, does not disturb the housing surface due to mechanically protruding parts.

The third housing part, also called the front cap, can have cantilevered locking elements arranged all around. These can be used for mechanical connection at the second end with the housing base, the second side walls and the

Serve the housing ceiling. The locking elements are designed as formations of the front cap, which are created with it in one operation and therefore also

Material of the front cap. The production can take place in an injection molding process.

Connecting elements can thus advantageously be provided for the production of which no additional work step is required.

The locking elements of the third housing part, the front cap, can be inserted at the second end

Openings in the bottom of the housing, the second side walls and the top of the housing grab hold.

The locking elements lock into the openings in the bottom of the housing, the second one

side walls and the housing ceiling. The openings can be punched out. With the

Snapping into place creates a tensile connection to the third housing part, which includes the guide pins,

Spacer pins and retaining tabs securely fixed in the housing base, the second side walls and the housing ceiling. Optionally, one of the openings can be arranged between two adjacent punching bridges.

. . ee ; N. .BE2022/5465

Advantageously, the intended positioning of the third housing part, combined with a stable positioning of the remaining housing parts, can be achieved without using one

Screw connection. By arranging the openings between two adjacent ones

Stamping bridges advantageously further increase the mechanical strength.

A circuit board of the electrical circuit can be attached or attachable parallel to the housing base. The circuit board can optionally be designed for power supply. The third housing part can have at least two spacer pins that engage or can be inserted into a gap between the circuit board and the housing base.

This allows a safety distance between the circuit board and the bottom of the housing of the first

housing part must be adhered to. Alternatively or in addition to electrical

For safety, place an insulating film in the gap between the circuit board and the bottom of the housing (also:

Insulating film) can be arranged.

Alternatively or additionally, the third housing part can be fixed if at least two spacer pins are clamped between the circuit board and the housing base. Further optionally, the spacer pins can hold the insulation film underneath

Board is arranged, at a predetermined distance away from the board.

The circuit board can advantageously be mounted unhindered on the housing base without having to take into account other housing parts that may be disruptive during assembly. Further advantageously, the minimum distance of the circuit board from the housing base can be supported and the minimum distance between the circuit board and the insulation film can be established.

The third housing part can have retaining tabs which are located on the outside of the housing base of the first housing part and/or on the outside of the second side walls of the second

part of the housing.

In this way, a screw connection of the circuit board on the housing base can be advantageously covered from the outside.

The second side walls can each have ventilation openings. These can optionally cover an area of more than half of the respective second side wall.

This advantageously allows the waste heat from the board to be dissipated without heat build-up.

A power supply (also known as a “power supply unit” or PSU) with a

Housing according to the designs described above can be one

Overcurrent protection device (technically also “circuit breaker” or CB, for example a circuit breaker) and/or components for an uninterruptible BE2022/5465

Power supply (also known as “Uninterruptible Power Supply” or UPS) can be supplemented. The components can also be arranged in the housing.

Accordingly, the dimensions of the side walls of the housing in a PSU without CB and/or UPS can differ from the dimensions of the side walls of the

Housing for a PSU with CB and/or UPS. In other words, they increase in size

Side walls of the housing and, as a result, also the front cap, so that, for example, additional boards and / or components can be arranged parallel to the power supply board. The front cap can also have further openings in which further operating elements or electrical connections can be arranged.

A second aspect concerns a set of multiple power supplies. Each power supply can comprise a housing according to the first aspect, for example with a uniformly dimensioned housing base and/or a uniformly dimensioned housing top. The

Set includes at least one power supply, which is located in the housing

Overcurrent protection device and/or components for uninterruptibility

Power supply is supplemented. The dimensions of the first and second side walls of the

Housing of the at least one power supply with overcurrent protection device or

Uninterruptible power supply components are larger than the dimensions of the first and second side walls of the housing of a power supply of the set without

Overcurrent protection device or without components for uninterruptibility

Power supply.

Advantageously, according to exemplary embodiments of the first and/or second aspect, even more complex power supplies can be designed to be compact and easy to install. This eliminates the need for different housings or at least different ones

Housing parts for electrical devices with different components (for example a PSU without CB and without UPS, a PSU with CB and without UPS, a

PSU without CB and with UPS, a PSU with CB and with UPS).

A third aspect relates to a method for producing a housing according to the first

Aspect (for example in one of the embodiments described above). The method may include a step of providing the housing. In the process they are

Installation direction of all screws used is identical. This allows the mounting direction of the

Screws must be horizontal. It can serve as a screwed connection between the first housing part and the second housing part. Both housing parts can be brought together in a vertical assembly direction. Also at

Use of the large side parts (i.e. the side walls of the second housing part) for

Installation of additional components of the overcurrent protection device (CB) and/or the

. . . . BE2022/5465 uninterruptible power supply (UPS), the mounting direction can be maintained. Two screws can also be mounted, which are also different

statements can have. However, one screw or three screws can also be screwed in the mounting direction of the screws.

In this way, a simplified assembly of the housing can advantageously be achieved, since in particular a single screw assembly direction keeps the complexity of the assembly low.

The invention will be explained in more detail below with reference to the accompanying drawings using preferred embodiments that can optionally be combined with one another.

Show it:

Fig. 1 is a schematic representation of a housing for accommodating an electrical

Circuit;

Fig. 2 is a schematic representation of a first and a second housing part, which is as

Housing base and housing ceiling are designed;

3 shows a schematic representation of a third housing part, which is designed as a front cap;

4 shows a schematic representation of the first, second and third housing parts;

Fig. 5 shows a schematic representation of a method for producing a housing.

Features shown or described in various embodiments are interchangeable with the same or extended reference numerals.

Fig. 1 shows a schematic representation of a housing with reference number 10

Recording an electrical circuit. Fig. 1 is an exploded view. The housing is essentially shown from the front with a side portion.

The housing 10 includes a first housing part 20 with a rectangular

Housing base 22 and a first side wall 24 which extends vertically at a first end of the housing base 22 and has a rectangular basic shape. The first housing part 20 thus has an L-shaped character. The first housing part 20 is made of aluminum, but can alternatively also be made of other metals or non-metals, as already explained above. The housing base is intended to accommodate at least one circuit board for an electrical circuit.

1 further shows a second housing part 40 with a rectangular housing ceiling 42 BE2022/5465 and two mutually parallel second side walls which extend perpendicularly from the housing ceiling on opposite edges of the housing ceiling 42. The side walls also have a basic rectangular shape. The housing base 22 and the housing top 42 are arranged parallel to one another in the assembled state of the housing. The first side wall 24 of the first housing part 20 is in the assembled state

Housing arranged perpendicular to the second side walls. The housing cover 42 has two connecting tabs 45 at the first end, through which the first side wall 24 passes

Connecting elements (for example reference numeral 46 in Fig. 2) are mechanically connected or connectable. The second housing part 40 is made from the same material as the first housing part 20. Accordingly, with electrically conductive materials such as

Aluminum a low-resistance electrical connection can be made by a screw connection, which can serve in particular as a reliable electrical ground connection.

The connecting tabs 45 are preferably arranged and designed so that the

Connecting elements can be mounted in a uniform (i.e. identical) assembly direction 12 for mechanically connecting the first housing part 20 and the second housing part 40.

Finally, FIG. 1 shows a third housing part 60, which can also be referred to as a front cap. This is at a second end opposite the first

Attachable to the end of the housing base 22. It serves for mechanical connection to the housing base 22, the second side walls and the housing top 42. This

Material of the third housing part 60 often has no electrical conductivity. It is preferably made of plastic, for example thermoplastic material. This is also for the various projections of the actual front cap in the form of pins,

Tabs and elements are advantageous, which are combined with the actual front flap in one

Spraying process can be produced with the same material.

Fig. 2 shows a schematic representation of a first and a second housing part, which are designed as a housing base and a housing ceiling. The housing parts are shown in a moderate exploded view, in which the housing parts partially touch each other. The view is one with essentially side and rear portions. The

Housing cover 42 has at least the two connecting tabs 45 at the first end. Two connecting elements 46 are shown, which are designed as screws. The one

Screw 46 is designed as a UL safety screw with a raised

Screw head, also known as a round head screw. The second screw 46 is designed as a countersunk screw, which does not have the screw in the assembled state

Connecting tab 45 protrudes. The mounting direction of both screws 46 is identical.

The first housing part 20, the second housing part 40 and the third housing part 60 are each made integrally in one piece BE2022/5465.

The first housing part 20, the second housing part 40 and the screws 46 are each electrically conductive. The connecting tabs 45 of the second housing part are with the first

Side wall 24 of the first housing part is electrically connected. This connection has a low resistance and can act as a ground connection, as already explained.

The second side walls of the second housing part 40 close with opposite ones

Edges of the housing base 22 flush. In addition, the first closes at the first end

Side wall 24 is flush with an edge of the housing ceiling 42. Finally lies first

One edge of the opposite second side walls ends at an edge of the first side wall 24.

The housing base 22 has eyelets 23 which bulge in the plane of the housing base 22 on opposite edges of the housing base 22. The second side walls each have at least one finger 25, which engages or can be inserted into one of the eyelets 23. In some exemplary embodiments, the eyelets 23 are arranged flush with the second side walls on the outside.

The at least one finger 25 is outside a plane of the respective second in FIG

Side wall arranged. One of the eyelets 23 of the housing base 22 is arranged in a recess in the respective second side wall corresponding to the finger 25. Correspondingly, when assembling the first housing part 20 with the second housing part 40, the fingers 25 grip the eyelets 23 of the housing base 22.

The connection of the third housing part 60 with the housing base 22, the second

Side walls and the housing ceiling 42 are designed without screws. Instead, the first housing part 20 and the second housing part 40 see various receptacles for pens,

Tabs and other elements of the third housing part 60 for fastening the third

Housing part, as will be explained in more detail below.

The second side walls each have two punching bridges 44 at the second end, into which guide retaining pins 62 projecting from the third housing part engage or can be inserted. Alternatively, there may also be different embodiments with one or three punching bridges 44. Furthermore, the housing cover 42 has at least one punching bridge 44 at the second end, into which a guide retaining pin 62 projecting from the third housing part engages or can be inserted. Alternatively, there may be different embodiments with one or three

Give punched bridges 44. The punching bridges have one at least in sections

Formation parallel to the surface of the punched out housing part.

Fig. 3 shows a schematic representation of a third housing part 60, which is called BE2022/5465

Front cap is formed. The illustration shows the interior of the third housing part 60. The third housing part 60 has circumferentially arranged locking elements 64 for mechanical

Connection at the second end with the housing base 22, the second side walls and the housing ceiling 42. The locking elements 64 have different

embodiments. The locking elements 64 for the second side walls and the

Housing cover 42 is dimensioned larger than the locking element 64 for housing base 22. In addition, they are each arranged in the middle. All locking elements 64 are in the

Housing, i.e. inserted into the space between the housing base 22, the second side walls and the housing ceiling 42. They have locking lugs located on the outside, which come from the

Inside the housing into the openings provided in the housing base 22, the second

Snap into place on the side walls and the housing ceiling 42 from the inside. The locking lugs are arranged within a circumferential projection for flush connection to the housing base 22, the second side walls and the housing ceiling 42 and are connected to it.

The locking elements 64 of the third housing part 60 engage in openings at the second end

Housing base 22, the second side walls and the housing ceiling 42. Alternatively or additionally, one of the openings can optionally be arranged between two adjacent punching bridges 44. In particular, the one opening between two adjacent punching bridges 44 is arranged in the second side walls and the housing ceiling 42, which is designed for the larger-sized locking elements 64. An opening for the smaller-sized locking element 64 is arranged in the housing base 22.

A circuit board 70 of the electrical circuit 26 is fastened or can be fastened parallel to the housing base 22. In exemplary embodiments, the circuit board 70 can optionally be designed for power supply. The third housing part 60 has at least two spacer pins 68 which engage or can be inserted into a gap between the circuit board 70 and the housing base 22.

As a result, a safety distance between the circuit board 70 and the housing base 22 of the first housing part 20 is maintained or a gap between the circuit board 70 and the

Housing base 22 is created, in which an insulating film can be accommodated without pressure damage. Optionally, in exemplary embodiments, the spacer pins (68) may place an insulating film (not shown) arranged under the circuit board 70 at a predetermined distance away from the circuit board 70.

The third housing part 60 also has two retaining tabs 66, which are on the outside

Housing base 22 of the first housing part 20 and/or on the outside of the second

Side walls of the second housing part 40 (not shown). The holding tabs 66 have a rectangular shape. They are designed in such a way that screw connections are covered. This can, for example, be the housing outer cover of a screw connection of the }F2022/5465

affect the circuit board on the bottom of the housing.

Fig. 4 shows a schematic representation of the first, second and third housing parts.

The first and second housing parts are joined together and the third housing part is in its insertion position. The second side walls each have

Ventilation openings 48. These are designed as interrupted strips and arranged obliquely on the second side walls. They have an area proportion of more than half of the respective second side wall.

A power supply can be arranged in the housing 10, which supplies a circuit board

Power supply and the associated circuit elements (electronic components), see above. In exemplary embodiments, the power supply can be one

Overcurrent protection device (technically “circuit breaker”, CB) and/or

Components for an uninterruptible power supply (UPS or in technical terms

UPS), which are also arranged in the housing. Such a module is then screwed into the second housing part 40 (not shown). They differ

Dimensions of the side walls of the housing for a power supply without a CB module or UPS module from the dimensions of the side walls of the housing for a

Powered by CB or UPS. In particular, the side walls of the housing are larger in their internal extent perpendicular to the housing base 22 and the housing ceiling 42, while the side wall extension is parallel to the housing base 22 and to

Housing ceiling 42 remains constant. A correspondingly sized, larger third housing part is therefore also used.

Fig. 5 shows the schematic representation of a method 100 for producing a

Housing 10 in one of the embodiments described above. The method 100 includes providing 102 the housing parts 20 and 40 (and optionally 60) and the

Assembly 104 of at least the housing parts 20 and 40 with identical assembly direction 12 of all screws 46 used.

For example, the mounting direction of the screws 46 can be horizontal and/or parallel and, for example, connect the first housing part 20 and the second housing part 40 to one another.

In other words, an improved assembly connection for sheet metal housing parts of electrical devices is described. It can be seen as the state of the art that a large number of housing concepts for power supplies are used, among other things

Control cabinet use in mechanical engineering exists. Important requirements in this area are a space-saving, cost-effective and robust design. The housing material is predominantly metal or plastic or a combination of both materials. This is BE2022/5465 depending on the usually high electrical, mechanical and thermal requirements.

Especially when the requirements for all three areas (electrical, mechanical, thermal) are high, the housing design becomes complex. This also increases

Manufacturing effort and production costs due to many assembly connections (especially screws) and assembly steps.

Accordingly, a manufacturing and cost-optimized, robust housing connection with reduced assembly directions and screw circumference should be sought. A first housing part 20 (base assembly) consists of an L-shaped metal housing 20 (for example

Aluminum), to which at least one circuit board 70 (printed circuit board) can be screwed. For the

To protect the electronics, a U-shaped second housing part 40 (metal hood) is placed on the first housing part 20. The second one is used for a secure earth connection

Housing part 40 (metal hood) in the rear area has two tabs with one each

Screw connected to the first housing part 20 (basic assembly). Finally, the first housing part 20 and second housing part 40 (metal housing) are screwed together via a third housing part 60 (front cap) to be snapped into place in the front

Area firmly connected and closed. What is particularly special is that this happens without screws via circumferentially arranged locking elements 64, as well as guide retaining pins 62 and spacer pins 68 in the third housing part 60 (front cap). The interaction of the various elements ensures a stable and robust

Housing connection.

The third housing part 60 (front cap) has at least two spacer pins 68, which in the assembled state are firmly between the circuit board 70 (printed circuit board) and the first

Housing part 20 (metal housing) is seated. All around the sides of the U-shaped second

Housing part 40 (metal hood) can have at least one or a maximum of two per side

Punching bridges 44 can be introduced, where they are arranged accordingly

Guide retaining pins 62 are inserted from the third housing part 60 (front cap).

In addition, the third housing part 60 (front cap) is characterized in that two retaining tabs 66 grip around the first housing part (metal housing) from the outside. Alternatively or additionally, the third housing part 60 (i.e. the front cap) has at least one latching element 64 on each side.

In addition, the housing can accommodate a number of modules. The circuit board 70 (for example as a basic assembly) alone is the actual power supply. In the housing is the circuit board 70 (for example the base assembly) with an overcurrent protection device (technically: "circuit breaker" or CB) or a module for uninterruptibility

. . . BE2022/5465

Power supply (UPS, also known as “uninterruptible power supply”, UPS) available. This module can be fastened (for example screwed) in the second housing part 40 (i.e. in the U-part).

Although the invention has been described with reference to exemplary embodiments, it will be apparent to those skilled in the art that various changes may be made and equivalents substituted. Furthermore, many can

Modifications are made to suit a particular situation or a particular

Adapt module in the housing to the teaching of the invention. Accordingly, the invention is not limited to the disclosed embodiments, but includes all of them

Embodiments that fall within the scope of the appended claims.

List of reference symbols BE2022/5465 10 Housing 12 Mounting direction 20 First housing part 22 Housing base

23 Eyelets 24 First side wall 25 Fingers 26 Electrical circuit

+40 Second housing part 42 Housing ceiling 44 Punched bridge 45 Connecting tabs 46 Connecting element, for example screw

47 recesses 48 ventilation openings 60 third housing part 62 guide retaining pin 64 locking elements

66 retaining tabs 68 spacer pins 70 circuit board 100 method for producing a housing 102 providing the housing part

104 Assembly with identical assembly direction of all screws used

Claims (16)

Patent claims 1. Housing (10) for accommodating an electrical circuit (26), composed of at least: a first housing part (20) with a rectangular housing base (22) and a first side wall (24) extending vertically at a first end of the housing base (22). ); a second housing part (40) with a rectangular housing ceiling (42) and two mutually parallel second side walls which extend perpendicularly from the housing ceiling (42) on opposite edges of the housing ceiling (42), the housing base (22) and the housing ceiling (42) are parallel, and the first side wall (24) is perpendicular to the second side walls, and wherein the housing cover (42) has at least one connecting tab (45) at the first end with which the first side wall (24) is mechanically connected by a connecting element (46). is connected or connectable; and a third housing part (60), which can be attached to a second end opposite the first end for mechanical connection to the housing base (22), the second side walls and the housing ceiling (42). 2. Housing (10) according to claim 1, wherein the connecting element (46) is designed as a screw, and wherein the housing cover (42) has at least two connecting tabs (45) at the first end, each of which is designed to hold a screw (46 ) in a mounting direction (12), wherein the mounting direction (12) of the at least two screws (46) is identical, and / or wherein the first housing part (20), the second housing part (40) and / or the third housing part (60 ) are each made integrally in one piece. 3. Housing (10) according to claim 1 or 2, wherein the first side wall (24) has at least one recess (47) at the first end for receiving a connecting tab (45) of the housing cover (42), optionally with the connecting tab (45) on the outside is flush with the first side wall. N. … ; ; N. BE2022/5465 4. Housing (10) according to one of claims 1 to 3, wherein the first housing part (20) and the second housing part (40) are each electrically conductive, and wherein the connecting tab (45) of the second housing part is connected to the first side wall (24). of the first housing part are electrically conductively connected. 5. Housing (10) according to one of claims 1 to 4, wherein the second side walls are flush with opposite edges of the housing base (22), and / or wherein at the first end the first side wall (24) is connected to an edge of the housing ceiling (42). flush, and/or wherein at the first end one edge of the opposite second side walls rests against an edge of the first side wall (24). 6. Housing (10) according to one of claims 1 to 5, wherein the housing base (22) has eyelets (23) which bulge in the plane of the housing base (22) on opposite edges of the housing base (22), and wherein the second side walls each have at least one finger (25) which engages or can be inserted into one of the eyelets (23), optionally wherein the eyelets (23) are flush with the second side walls on the outside. 7. Housing (10) according to claim 8, wherein the at least one finger (25) is arranged outside a plane of the respective second side wall, and in each case one of the eyelets (23) of the housing base (22) is in one with the finger (25). corresponding recess of the respective second side wall is arranged. 8. Housing (10) according to one of claims 1 to 7, wherein the mechanical connection of the third housing part (60) to the housing base (22), the second side walls and the housing top (42) is screwless. N. . . a. . - BE2022/5465 9. Housing (10) according to one of claims 1 to 8, wherein the second side walls each have at least one punching bridge (44) at the second end, into which guide retaining pins (62) projecting on the third housing part engage or can be inserted, and / or wherein the Housing cover (42) has at least one punching bridge (44) at the second end, into which a guide retaining pin (62) projecting on the third housing part engages or can be inserted. 10. Housing (10) according to one of claims 1 to 9, wherein the third housing part (60) has circumferentially arranged locking elements (64) for mechanical connection at the second end with the housing base (22), the second side walls and the housing ceiling (42 ). 11. Housing (10) according to claim 10, wherein the locking elements (64) of the third housing part (60) engage at the second end in openings in the housing base (22), the second side walls and the housing ceiling (42), optionally between two adjacent punching bridges (44) one of the openings is arranged. 12. Housing (10) according to one of claims 1 to 11, wherein a circuit board (70) of the electrical circuit (26) is attached or attachable parallel to the housing base (22), optionally wherein the circuit board (70) is designed for power supply, and wherein the third housing part (60) has at least two spacer pins (68) which engage or can be inserted into a gap between the circuit board (70) and the housing base (22), so that a safety distance between the circuit board (70) and the housing base (22) of the first housing part (20) is maintained, optionally wherein the spacer pins (68) arrange an insulating film, which is arranged under the circuit board (70), at a predetermined distance away from the circuit board (70). N. … ; ; . N. BE2022/5465 13. Housing (10) according to one of claims 1 to 12, wherein the third housing part (60) has retaining tabs (66) which are on the outside on the housing base (22) of the first housing part (20) and / or on the outside on the second side walls of the second Housing part (40). 14. Housing (10) according to one of claims 1 to 13, wherein the second side walls each have ventilation openings (48), optionally with an area proportion of more than half of the respective second side wall. 15. Set of several power supplies, each power supply comprising a housing (10) according to one of claims 1 to 14 with a uniformly dimensioned housing base (22) and / or a uniformly dimensioned housing top (42), the set comprising at least one power supply which is in the housing (10) is supplemented by an overcurrent protection device and/or components for an uninterruptible power supply, and the dimensions of the first and second side walls of the housing (10) of the at least one power supply with an overcurrent protection device or components for an uninterruptible power supply are larger than the dimensions of the first and second side walls the housing (10) of a power supply of the set without overcurrent protection device or without uninterruptible power supply components. 16. Method (100) for producing a housing (10) according to one of claims 1 to 14, wherein a mounting direction (12) of all screws (46) used is identical.