EP3255642A1 - Assembly set for a choke and choke - Google Patents

Abstract

The invention relates to a mounting kit for a throttle with a toroidal core, wherein an opening of the toroidal core passing through insulating is provided, wherein the mounting kit comprises a first half-shell and a second half-shell for receiving the toroidal core, wherein a base plate is provided and wherein the holder locking means and / or guide means to connect the first half-shell, the second half-shell, the insulating member and / or the base plate to each other.

Description

The invention relates to a mounting kit for a throttle with a toroidal core, wherein an opening of the toroidal core passing through the insulating element is provided. The invention also relates to a throttle with a mounting kit according to the invention.

From the German patent application DE 10 2007 060 556 A1 a transmission unit with a toroidal core and three windings on the toroidal core is known. The ring core is arranged in a two half-shells mounting kit. The windings are wound up on the half-shells. A cover is provided which completely covers the completed transformer. The lower half-shell is provided with fixing pins which protrude to the bottom of the throttle.

From the German patent application DE 103 08 010 A1 is known a mounting set for a throttle with a toroidal core, wherein an opening of the toroidal core passing through insulating is provided. The insulating member has three circumferentially equally spaced webs. The insulating element is intended to separate the windings on the toroidal core.

With the invention, a mounting kit for a throttle to be provided with a toroidal core, which facilitates the installation of a throttle.

According to the invention for this purpose a mounting kit with the features of claim 1 and a throttle with the features of claim 15 is provided. Advantageous developments of the inventions are given in the dependent claims.

The mounting set according to the invention for a choke with a toroidal core has an insulating element passing through the opening of the toroidal core, the mounting set having a first half shell and a second half shell for receiving the toroidal core, wherein a base plate is provided and latching means and / or guiding means are provided, to connect the first half shell, the second half shell, the insulating member and the base plate with each other. By the individual components of the mounting kit are connected by means of locking means and / or guide means, takes place during assembly of the mounting kit automatically a spatially correct assignment of the individual components to each other. The mounting of the throttle can be done faster and with greater precision.

In particular, it can be provided to design the guide means and latching means in such a way that a tool-free installation of the throttle can take place. For example, the mounting kit can also be provided for fully automated assembly of the throttle. The first half shell, the second half shell, the insulating member and the base plate are formed as separate parts.

In a further development of the invention, first latching means and / or guide means are provided for connecting the two half shells.

In this way, an automatically correct position connection of the two half-shells can take place.

In a further development of the invention, the first latching means and / or guide means on at least a first projection and two second projections, wherein in the latched state, the first projection is at least partially added between the two second projections.

By means of such a design of the first latching means and / or guide means, an alignment function in the circumferential direction can be achieved.

In a further development of the invention, second latching means and / or guide means are provided for connecting the first half-shell to the base plate.

In this way, the first half-shell can be latched in the correct position on the base plate. The base plate can then be attached, for example, to a circuit board or other component by simple means. Advantageously, combined latching and guiding means are provided which, on the one hand, align the first half shell or the substantially completely mounted throttle in the circumferential direction relative to the base plate and at the same time center the throttle relative to the base plate and also hold it on the base plate.

In a further development of the invention, the second latching means and / or guide means on at least three of the base plate outgoing projections, at the free ends locking lugs are arranged.

By means of three projections, which are uniformly spaced apart in particular in the circumferential direction, a centering and simultaneous alignment in the circumferential direction can be achieved.

In a further development of the invention, the two half-shells in the assembled state form a torus-shaped holder, wherein the projections extend into a passage opening of the toroidal holder and bear against a wall forming the passage opening of the toroidal holder.

In this way, the projections can be accommodated to save space and simultaneously center the toroidal support and fix it to the base plate.

In a further development of the invention, third locking means and / or guiding means are provided for connecting the insulating element to the base plate.

With latching means and / or guide means, the insulating element can be aligned during connection to the base plate and held simultaneously. The insulating element is used to separate the individual windings on the toroidal holder.

In a further development of the invention, the insulating element has at least three plate-like and star-shaped webs, wherein radially outer edges of the webs are received in guides on the base plate.

In a further development of the invention, the first half-shell is provided with three, in the circumferential direction uniformly spaced insulating protrusions which rest in the mounted state on the base plate.

By means of such Isoliervorsprünge on the first half-shell, a predefined distance between the first half-shell or the winding and the base plate is achieved. The Isoliervorsprünge separate the windings from each other.

In a further development of the invention, the radially inner sides of the projections extending from the base plate are provided with guide grooves for receiving the radially outer edges of the webs.

In a further development of the invention, the first half shell and the second half shell form a toroidal support for a toroidal core, and the insulating element and the support are provided with mating fourth locking means and / or guiding means.

In a further development of the invention, the second half-shell is provided with guide grooves for receiving radially outer edges of the webs of the insulating element.

In a further development of the invention, the guide grooves of the second half-shell are arranged in the assembled state in each case a radial plane with the guide grooves of the projections of the base plate.

In a further development of the invention, the base plate, the two half-shells and the insulating element as each integrally formed plastic parts, in particular injection-molded parts formed.

The problem underlying the invention is also solved by a choke with a toroidal toroidal core, at least one, the ring core sections surrounding wire winding and a mounting kit according to the invention, wherein the toroidal core is received in a toroidal support formed by the two half shells and the wire winding on an outside the toroidal holder is applied.

In a further development of the invention, ends of the wire winding are guided at least partially through passage openings in the base plate.

Fig. 1

eine Ansicht einer Basisplatte eines erfindungsgemäßen Montagesatzes von schräg oben,

Fig. 2

eine erste Halbschale des erfindungsgemäßen Montagesatzes von schräg oben,

Fig.3

die Basisplatte der Fig. 1 und die erste Halbschale der Fig. 2 im zusammengebauten Zustand in einer Ansicht von schräg oben,

Fig.4

die Basisplatte, die erste Halbschale und eine zweite Halbschale des erfindungsgemäßen Montagesatzes im zusammengebauten Zustand in einer Ansicht von schräg oben,

Fig.5

den vollständigen, zusammengebauten erfindungsgemäßen Montagesatz in einer Ansicht von schräg oben,

Fig. 6

eine mit dem erfindungsgemäßen Montagesatz aufgebaute Drossel in einer Ansicht von schräg unten,

Fig. 7

die Drossel der Fig. 6 in einer Ansicht von schräg oben,

Fig. 8

die Drossel der Fig. 7 in einer Ansicht von schräg unten,

Fig. 9

eine Schnittansicht der Drossel der Fig. 7,

Fig. 10

die geschnittene Drossel der Fig. 9 in einer Ansicht von schräg oben,

Fig. 11

das Isolierelement des erfindungsgemäßen Montagesatzes in einer Ansicht von schräg oben und

Fig. 12

die Basisplatte der Fig. 1 und das Isolierelement der Fig. 11 im zusammengesteckten Zustand.

Further features and advantages of the invention will become apparent from the claims and the following description of preferred embodiments of the invention in conjunction with the drawings. Individual features of the different, illustrated and described embodiments can be combined with one another in an arbitrary manner without exceeding the scope of the invention. In the drawings show:

Fig. 1

a view of a base plate of a mounting kit according to the invention obliquely from above,

Fig. 2

a first half-shell of the mounting kit according to the invention obliquely from above,

Figure 3

the base plate of the Fig. 1 and the first half shell of the Fig. 2 when assembled in an oblique view from above,

Figure 4

the base plate, the first half-shell and a second half-shell of the assembly according to the invention in the assembled state in an oblique view from above,

Figure 5

the complete, assembled assembly according to the invention in a view obliquely from above,

Fig. 6

a built-up with the assembly kit according to the invention in a view obliquely from below,

Fig. 7

the throttle of Fig. 6 in a view from above,

Fig. 8

the throttle of Fig. 7 in a view from below,

Fig. 9

a sectional view of the throttle of Fig. 7 .

Fig. 10

the cut throttle of Fig. 9 in a view from above,

Fig. 11

the insulating of the mounting kit according to the invention in a view obliquely from above and

Fig. 12

the base plate of the Fig. 1 and the insulating element of Fig. 11 in the assembled state.

The presentation of the Fig. 7 shows a throttle 10 according to the invention in the mounted state on a printed circuit board 12 in a view obliquely from above.

The throttle 10 has a total of three windings 14, 16 and 18, which are spaced apart on a toroidal support 20 are wound. Lead wires of the windings are each passed through the circuit board 12, which is only partially visible. The toroidal support 20 is arranged on a base plate 22. In an opening of the toroidal support 20, an insulating member 24 is inserted, the has three, equally spaced circumferentially webs and which separates the windings 14, 16 and 18 from each other.

The holder 20, the base plate 22 and the insulating member 24 form a mounting kit for the throttle 10 according to the invention, which will be explained in more detail below.

The presentation of the Fig. 1 shows the base plate 22 in a view obliquely from above. The base plate has a total of six through holes 26, 28, wherein two through holes 26, 28 are associated with one of the windings 14, 16 and 18, respectively. A winding start of the windings 14, 16, 18 is inserted in each case through one of the radially inner passage openings 26 and passed through the base plate 22. A respective winding end is passed through one of the through openings 28, which are arranged radially outside of the passage openings 26 and are arranged in particular on extensions of a circular main body of the base plate 22 which extend in the radial direction.

The base plate 22 has three projections 30 which, starting from the base plate 22 upwards, in the representation of Fig. 1 towards the viewer. The three projections 30 are circumferentially uniform and spaced apart by an angle of 120 °. The protrusions 30 are arranged around a central dome 32 of the base plate 22, with the dome 32 extending upward from the base body of the base plate 22. The dome 32 is used to screw in a fixing screw, see Fig. 8 to 10 to attach the throttle 10 to the base plate 22, see Fig. 7 , and for guiding the insulating member 24.

The projections 30 have on their radially inner side in each case a groove 34 which serves as a guide means for the insulating member 24. The groove 34 extends to the main body of the base plate 22nd

On its radially outer side, the projections 30 are each provided with locking lugs 36. The locking lugs can also be replaced by differently shaped locking means. Each projection 30 has on its radially outer side two locking lugs 36 and between the locking lugs on a guide web 38 which is perpendicular to the base body of the base plate 22. By means of the projections 30 and in particular by means of the latching noses 36 and the guide webs 38, a first half-shell is anchored to the base plate 22.

This first half shell 40 is in Fig. 2 shown diagonally from above. The first half-shell 40 forms a lower portion of a toroidal interior 42, which is provided for receiving a ring core of the throttle. Such a toroidal core consists for example of ferrite material. The toroidal core can be easily inserted into the first half-shell 40 and is thereby already correctly positioned.

The first half-shell has, in the region of the wall of its through-opening 44, three pairs of guide webs 46, wherein two guide webs 46 belonging to a pair form a groove 48 between them. This groove 48 is provided for receiving the guide webs 38 on the projections 30 of the base plate 22, see Fig. 1 , An in Fig. 2 upper end of the guide webs 46 serves as a stop for the latching lugs 36 on the projections 30. When pushing the first half-shell 40 onto the projections 30, the projections 30 are first slightly bent radially inwardly until the latching lugs 36 on the in Fig. 2 snap up the upper ends of the guide webs 46 and thereby securely fix the first half-shell 40 to the base plate 22. By the guide webs 38, which engage in the grooves 48, the first half-shell is fixed after locking in the circumferential direction in the intended position on the base plate 22.

As in Fig. 1 can be seen, the tops of the locking lugs 36 are chamfered. Thereby, the placement of the guide webs 46 of the first half-shell 40 is facilitated and it is also facilitated that the projections 30 are deflected when pushing the first half-shell 40 in the direction of the main body of the base plate 22 to radially inward.

The first half shell 40 is also provided on its outside with three circumferentially equally spaced projections 50. These projections 50 are intended to intervene between each two projections 62 of a second half-shell 60, see Fig. 4 ,

In addition, the first half-shell 40 is provided on its underside with three circumferentially equally spaced insulating protrusions 52, of which in Fig. 2 only one can be seen. The insulating projections 52 are in the mounted state on the base plate 22 and hold the first half-shell 40 thereby predefined distance relative to the base plate 22. The Isoliervorsprünge 52 also separate the windings 14, 16, 18 from each other, see Fig. 7 ,

Fig. 3 shows the first half-shell 40 and the base plate 22 in the assembled state. It can be seen that the latching lugs 36 of the projections 30 on the base plate 22 are now snapped over the upper ends of the guide webs 46 on the first half-shell 40. As a result, the first half-shell 40 is firmly held on the base plate 22. As has been stated, the guide webs 38 on the projections 30 ensure that the first half-shell 40 is also placed in the intended position on the base plate 22 in the circumferential direction.

The presentation of the Fig. 4 shows a second half-shell 60 in the assembled state on the first half-shell 40 and the base plate 22. The second half-shell 60 is placed on the first half-shell 40, that the projections 50 of the first half-shell 40 each between two radially projecting projections 62 on the second half-shell 60 are added. As a result, the second half-shell 60 is positioned correctly relative to the first half-shell 40 in the circumferential direction.

The two half shells 40, 60 thereby form the toroidal support 20, see Fig. 7 , In the toroidal interior of the holder 20, a toroidal core of the throttle can be inserted and on the toroidal support 20, the windings 14, 16, 18 are applied. Conveniently, during assembly of the throttle 10 according to the invention Fig. 7 After inserting the second half-shell 60 on the first half-shell 40, the holder 20 is completed and can now be provided with the windings 14, 16, 18. Only when the holder 20 is provided with the windings 14, 16, 18, it is placed on the base plate 22.

The upper half-shell 60 has in the radial direction inwardly open guide grooves 64, which are each formed between two guide webs 66. The grooves 64 and the guide webs 66 are each formed at the radially inner end of annular segment-shaped insulating protrusions 68, which are spaced uniformly in the circumferential direction on the upper side of the second half-shell 60. Between each two projections 68, one of the windings 14, 16, 18 is arranged in each case. The Isoliervorsprünge 68 on the upper half-shell 60 are arranged in the mounted state respectively in alignment with the Isoliervorsprüngen 52 on the lower half-shell. The grooves 64 serve to receive and guide webs of the insulating part 24, see Fig. 7 ,

Based on the presentation of the Fig. 4 It can be seen that in the assembled state of the second half-shell 60, the grooves 64 and the grooves 34 on the inside of the projections 30 on the Base plate 22 lie in each case a radial plane. The insulating member 24 can thus be inserted with its webs thus first in the grooves 64 and then in the grooves 34 and is thereby automatically positioned correctly to the base plate 22 and the holder 20.

The presentation of the Fig. 5 shows the holder 20 in the mounted state on the base plate 22, wherein additionally the insulating member 24 is inserted into the interior of the toroidal support 20. The radially outer edges 80 of the webs of the insulating member 24 are now received in the grooves 64 and 34, see Fig. 4 ,

The presentation of the Fig. 6 shows the throttle 10 of Fig. 7 in a view from diagonally below. Evident are the windings 18 and 14 on the holder 20. Furthermore, the passage openings 26, 28 can be seen in the base plate 22, through which in each case a winding start or a winding end of the windings 14, 16, 18 is passed. The winding starts or winding ends are thereby accessible in a very simple manner from the underside of the base plate 22 forth.

In the view of Fig. 6 It can also be seen that the first half-shell 40 is provided with the downwardly projecting annular ring-like projections 52, on the one hand the windings 14, 16, 18 separated from each other and on the other hand for a predefined distance of the windings 14, 16, 18 from the top of the base plate 22 worry. The holder 20 or the first half-shell 40 rests with the underside of its projections 52 on the upper side of the base plate 22.

The presentation of the Fig. 8 shows the throttle 10 of Fig. 6 and 7 in a view from below. To recognize in this view is a in Fig. 6 not shown retaining screw 70 which is screwed through a through hole in a bottom of the mandrel 32 in the base plate 22. With a single screw, namely the retaining screw 70, the throttle 10 can thereby be reliably attached to the circuit board 12.

The presentation of the Fig. 9 shows the throttle 10 of Fig. 8 in the cut state. In this view, a arranged in the interior of the holder 20 toroidal core 72 can be seen.

The presentation of the Fig. 10 shows the cut throttle 10 of Fig. 9 in a view from diagonally above.

Fig. 11 shows the insulating member 24 in a view obliquely from above. Evident are the three radially outwardly extending and circumferentially evenly spaced by 120 ° from each other webs 74. The webs 74 are in the region of their side surfaces adjacent to the outer surfaces, provided with wedge-shaped latching hook 76, which is for a backlash-free Fit the lands 74 in the grooves 64, see Fig. 4 , It can also be seen that the webs 74 are shorter in a lower region in the radial direction. As a result, the webs 74 are adapted to the position of the grooves 34 in the projections 30 of the base plate 22, see Fig. 4 , At the lower end of the insulating member 24, the webs 74 on a central recess 78. In this recess, the dome 32 of the base plate 22 is received. This results in a repeated fixing and centering of the insulating member 24 and thus also the holder 20th

The presentation of the Fig. 12 shows the insulating member 24 in the mounted state on the base plate 22. It can be seen how the dome 32 of the base plate 22 now projects into the central recess 78 of the insulating member 24.

Claims (16)

Assembly set for a throttle (10) having a toroidal core (72), wherein an opening of the toroidal core passing through insulating (24) is provided, characterized in that the mounting kit comprises a first half-shell (40) and a second half-shell (60) for receiving the Ring core (72), that a base plate (22) is provided and that latching means and / or guide means are provided to the first half-shell (40), the second half-shell (60), the insulating member (24) and the base plate (22) to connect with each other. Mounting kit according to claim 1, characterized in that first locking means and / or guide means for connecting the two half-shells (40, 60) are provided. Assembly set according to claim 2, characterized in that the first latching means and / or guide means comprise at least one first projection (50) and two second projections (62), wherein in the latched state, the first projection (50) at least in sections between the two second projections ( 62) is recorded. Mounting kit according to at least one of the preceding claims, characterized in that second latching means and / or guide means for connecting the first half-shell (40) with the base plate (22) are provided. Mounting kit according to claim 4, characterized in that the second latching means and / or guide means comprise at least three of the base plate (22) outgoing projections, at the free ends locking lugs (36) are arranged. Assembly set according to claim 5, characterized in that the two half-shells (40, 60) in the assembled state form a toroidal support (20), wherein the projections (30) extend into a passage opening (44) of the toroidal support (20) and abut against a wall forming the passage opening (44) of the toroidal support (20). Mounting kit according to at least one of the preceding claims, characterized in that third latching means and / or guide means for connecting the insulating member (24) to the base plate (22) are provided. Mounting kit according to claim 7, characterized in that the insulating element (24) has at least three plate-like and star-shaped webs, wherein radially outer edges (80) of the webs (74) are received in guides on the base plate (22). An assembly according to claim 7 and 8, characterized in that the radially inner sides of the projections (30) are provided with guide grooves (34) for receiving the radially outer edges (80) of the webs. Mounting kit according to at least one of the preceding claims, characterized in that the first half-shell (40) is provided with three circumferentially uniformly spaced insulating projections (52) which rest in the mounted state on the base plate. Mounting kit according to at least one of the preceding claims, characterized in that the first half-shell (40) and the second half-shell (60) form a toroidal support (20) for the toroidal core (72) and that the insulating element (24) and the holder (20 ) are provided with matching fourth locking means and / or guide means. Mounting kit according to claim 11, characterized in that the second half-shell (60) with guide grooves (64) for receiving radially outer edges (80) of the webs (72) of the insulating element (24) is provided. Mounting kit according to claim 10 to 12, characterized in that the guide grooves (64) of the second half-shell (60) in the mounted state in each case a radial plane with the guide grooves (34) of the projections of the base plate (22). Mounting kit according to at least one of the preceding claims, characterized in that the base plate (22), the two half-shells (40, 60) and the insulating member (24) are formed as one-piece plastic parts, in particular injection-molded parts. Throttle (10) with a toroidal ring core (72), at least one, the toroidal core surrounded in sections wire winding (14, 16, 18) and a mounting kit at least one of the preceding claims, characterized in that the toroidal core (72) is received in a toroidal support (20) formed by the two half-shells (40, 60) and that the wire winding (14, 16, 18) on an outer side of the toroidal Holder (20) is applied. Throttle according to claim 14, characterized in that ends of the wire winding (14, 16, 18) at least partially through through holes (26, 28) in the base plate (22) are guided.

Images