EP3832683B1 - Switching device for a busbar system - Google Patents

Description

The present invention relates to a switching device for a busbar system.

From the EP 1 246 212 A2 a switching device for a busbar system is known. This switching device has an input contact assigned to the respective busbar of the busbar system for contacting the busbar, an outgoing contact assigned to the respective input contact and a fuse holder assigned to the respective busbar. The respective fuse holder has a receiving device for receiving a fuse link and a storage section, with the receiving device being mounted in the storage section of the switching device. A threaded sleeve with a connection terminal forms the respective bearing section, with each threaded sleeve being assigned to a busbar or a phase and serving to screw in a screw cap, the cylindrical fuse link being able to be inserted into this screw cap.

From the U.S. 6,864,443 B1 a switching device for a busbar system is known which has the features of the preamble of patent claim 1.

Further prior art is from U.S. 2006/125596 A1 and the EP 1 953 779 A1 known.

The object of the present invention is to provide a switching device for a busbar system which has the features of the preamble of patent claim 1 has to be developed in such a way that the fuse link can be stored particularly securely in the fuse holder and, in particular, ensures reliable and permanent contact with the fuse link and, furthermore, a particularly simple replacement of the fuse link is possible.

This object is achieved by a switching device having the features of claim 1.

The switching device has an input contact assigned to the respective busbar of the busbar system for contacting the busbar, an outgoing contact assigned to the respective input contact and a fuse receptacle assigned to the respective busbar. The respective fuse holder has a receiving device for receiving a fuse link and a storage section, the receiving device being storable in the storage section of the switching device. According to the invention, it is provided that the receiving device has first locking means and the bearing section has second locking means, wherein in a first angular position of the receiving device with respect to the bearing section, the receiving device can be displaced in the bearing section in an axial direction and in a second angular position of the receiving device with respect to the bearing section by interaction the first and second locking means prevent axial displacement of the receiving device with respect to the bearing section.

Thus, when equipping the switching device with a fuse link, it is provided that the fuse link is positioned in the respective receiving device. The receiving device is then introduced into the bearing section in a first angular position in the axial direction and then brought into a locking position by rotating the receiving device into the second angular position. In this locking position or the second angular position, displacement of the receiving device counter to the axial direction and out of the bearing section is prevented.

In the second angular position, the first and second locking means preferably interact in a form-fitting manner counter to the axial direction or counter to the insertion direction.

The receiving device can preferably be completely removed from the storage section. This enables a particularly simple replacement of the fuse link and/or insertion of the fuse link into the receiving device.

The switching device preferably has a first contact on the bearing section side for a first contacting surface of the fuse link and a second contact on the bearing section side for a second contacting surface of the fuse link.

In the second angular position, the first contact on the bearing section side preferably makes contact with the first contacting surface of the fuse link and the second contact on the bearing section side makes contact with the second contacting surface of the fuse link.

It is considered particularly advantageous if the first contact on the bearing section side has a section that can be contacted in the axial direction and the second contact on the bearing section side has a section that can be contacted in the radial direction.

The angular difference between the first angular position and the second angular position is preferably between 15 and 45°, in particular between 20 and 35°.

It is considered particularly advantageous if the receiving device can be brought into a latched position in the second angular position, with rotation from the second angular position into the first angular position not being possible in the latched position.

In a preferred embodiment, it is provided for this purpose that the receiving device can be brought into a latched position in the second angular position by an axial movement counter to the direction of insertion, with the first and second locking means interacting in this latched position in such a way that rotation from the second angular position into the first angular position is prevented. For the purpose of releasing the locking position, it is before the receiving device is rotated with respect to the bearing section, it is necessary to move the first and second locking means out of the locking position by means of an axial movement of the receiving device in the insertion direction. The first and second locking means preferably interact in a form-fitting manner in this detent position in the direction of rotation from the second to the first angular position. In particular, the first and second locking means interact in a form-fitting manner in the locking position counter to the direction of insertion.

In a preferred embodiment it is provided that the first locking means are designed as projections and the second locking means are designed as recesses.

However, it is also entirely conceivable for the first locking means to be in the form of recesses and for the second locking means to be in the form of projections.

The recesses can definitely be designed as a slot. However, the recesses are preferably designed as recesses.

In a preferred embodiment, the receiving device has exactly two diametrically formed projections and the bearing section has exactly two diametrically formed recesses.

It is considered particularly advantageous if the bearing section has a guide structure for guiding the first locking means when the receiving device is axially displaced. The guide structure is preferably a recess, it being entirely conceivable for the guide structure designed as a recess to directly adjoin the second locking means designed as a recess.

It is considered particularly advantageous if the locking means are designed in such a way that the receiving device can be transferred from the first angular position to the second angular position without any axial movement. The locking means preferably interact in the second angular position in such a way that rotation beyond the second angular position is blocked.

According to the invention, it is provided that the receiving device has a prestressing means, wherein in the locking position of receiving device and bearing section, insofar as it is in the second angular position, a fuse link that can be arranged in the receiving device is prestressed with a first contacting surface against the first contact on the bearing section side. The first contact on the bearing section side preferably makes contact with a front-side contacting surface of the fuse link.

This configuration is to be regarded as advantageous in that reliable contacting between the first contact on the bearing section side and the fuse link arranged in the receiving device is always ensured.

In an advantageous development, it is provided that the fuse holder, preferably the receiving device, has a restoring means, with the fuse link being arranged in the receiving device being axially displaced into the bearing section against a restoring force of the restoring means. On the one hand, this has the advantage that the user receives haptic feedback as to whether a fuse link is actually arranged in the receiving device, and removal of the receiving device with the fuse link arranged therein from the storage section is also supported. Furthermore, in one embodiment of the device with the locking position described above, this design has the advantage that the restoring means transfers the receiving device into the locking position after the rotation of the first angular position into the second angular position and a transfer from the second angular position into the first angular position initially involves a transfer the receiving device out of the locked position, thus against the restoring force of the restoring means, requires. As a result, the receiving device is mounted particularly securely and reliably in the bearing section.

In a preferred embodiment, the first locking means and the second locking means form components of a bayonet lock.

It is considered particularly advantageous if the receiving device has the restoring means and/or the prestressing means.

In a preferred embodiment of the invention it is provided that the prestressing means forms the restoring means. As a result, weight and/or costs and/or assembly effort can be saved.

The prestressing means and/or the restoring means is preferably a mechanical spring, in particular a helical spring, particularly preferably a compression spring.

According to the invention, the receiving device has a receiving body, the receiving body having a cover section and a casing section, the casing section serving to accommodate the fuse link.

The cover section preferably has a handle. The handle makes it easier to turn the receiving device from the first angular position into the second angular position and vice versa. The handle is preferably designed as a finger grip.

The receiving body is preferably designed in one piece.

The receiving body is preferably made of a plastic.

It is considered particularly advantageous if the jacket section has the first locking means.

The jacket section is in particular designed in the form of a hollow cylinder. As a result, the receiving body is particularly suitable for receiving cylindrical fuse links.

The fuse holder serves in particular to hold a cylindrical fuse, in particular to hold a D0 fuse (DIN VDE 0636-3:2013-12).

The jacket section is preferably designed in such a way that a fuse link arranged in the receiving device protrudes from the receiving body on a side facing away from the cover section.

According to the invention, the receiving device has a contact lug mounted in the receiving body for contacting a second contacting surface of the fuse link.

In a preferred embodiment, the contact lug has a first contact section for contacting the fuse link at the end and a second contact section for contacting a second contact on the bearing section side, the two contact sections being formed at an angle to one another.

The contact lug is preferably mounted detachably in the receiving body. The receiving body and the contact lug can thus be manufactured separately and connected to one another after they have been manufactured.

The first contact section is preferably arranged radially on the inside with respect to the jacket section and the second contact section is arranged radially on the outside with respect to the jacket section.

It is considered advantageous if the second contact section protrudes radially outwards in relation to the jacket section. This enables particularly reliable and permanent contacting of the second contact on the bearing section side. Preferably, the second contact portion contacts the bearing portion-side second contact in the radial direction.

The bearing section preferably has an axial groove for accommodating the contact lug, in particular for accommodating the second contact section of the contact lug. This axial groove ensures that the receiving device with a second contact section protruding radially outwards relative to the casing section can only be inserted into the bearing section in a specific angular position, thereby avoiding incorrect insertion of the receiving device. The second contact of the bearing section is preferably arranged in the region of the axial groove of the bearing section.

According to the invention, the contact lug is displaceable, in particular axially displaceable, and is mounted in the receiving body, with the prestressing means and preferably the restoring means being arranged between the contact lug and the cover section, preferably between the first contact section and the cover section. When the receiving device is inserted into the bearing section, the prestressing means and/or the restoring means exert a force on the contact lug, as a result of which the contact lug is pressed against the fuse link, as a result of which a particularly secure contact between the contact lug and the fuse link is ensured. Thus, the fuse arranged in the receiving body or the fuse insert is prestressed against the contact lug and preferably also against the first contact on the bearing section side. This preload prevents poor mechanical contact between the fuse link and the contact lug or the first contact or from occurring during operation, thereby avoiding malfunctions in the switching device. This design is particularly advantageous in an embodiment in which the contact lug makes radial contact with the second contact on the bearing section side, since axial displacement of the contact lug with sufficient axial extension of the contact lug does not have a negative effect on the contacting of the second contact on the bearing section side.

The contact lug is preferably prestressed in the radial direction against the second contact on the bearing section side.

In a preferred embodiment, it is provided that the contact lug is mounted in the receiving body so that it can rotate through a limited angular range. The angular range preferably corresponds to an angular difference between the first angular position and the second angular position of the receiving device. Because the contact lug is mounted in the receiving body so that it can rotate through a limited angular range, the contact lug can be mounted in a stationary manner in the bearing section, with rotation of the receiving device, namely the receiving body, with respect to the bearing section not affecting the position of the contact lug. As a result, the dimensions of the contact lug required for reliable functioning can be reduced, as a result of which material for the contact lug can be saved.

The first contact section preferably has a projection radially on the outside, with the jacket section having a contact section for axially interacting with the projection. As a result, a stop is formed, so to speak, so that the contact lug cannot be pushed out of the receiving body in the axial direction, in particular under the action of the restoring means and/or under the action of the prestressing means.

The projection is preferably formed diametrically opposite the second contact section.

It is considered advantageous if the casing section has a contact section for axial interaction with the second contact section, insofar as a stop is formed by the contact section, with the advantages described above.

An embodiment with an abutment portion for axial interaction with a projection of the first contact portion and an abutment portion for axial interaction with the second contact portion is considered to be particularly advantageous since tilting of the contact lug is avoided. The jacket section preferably has a through-opening for the second contact section and/or a through-opening for the projection of the first contact section.

Preferably, these through-openings are formed with a play for a rotation of the contact lug and an axial displacement of the contact lug.

With regard to a particularly secure holding of the contact lug in the receiving body and also simple assembly or simple introduction of the contact lug into the receiving body, it is considered advantageous if the casing section has an axially extending groove on the radially inner side for the projection of the first contact section. This groove is preferably followed by a latching means, the latching means enabling the projection to pass counter to the axial direction and blocking it in the axial direction.

It is considered to be particularly advantageous if the fuse link is mounted in the casing section in an axially displaceable manner. The fuse link is preferably held in a clamped manner in the casing section, the clamping force being such that the fuse link can still be axially displaced in the casing section when the receiving device is manually inserted into the bearing section.

The clamping retention of the fuse link in the casing section can preferably be realized in that a folded sheet metal at least partially enclosing the fuse link in the circumferential direction is introduced into the casing section. This sheet metal works together with the fuse link in a non-positive manner.

The cover section preferably has a stop section that protrudes circumferentially in the radial direction in relation to the casing section, with this stop section coming to rest on an outside of a housing of the switching device in the locking position.

The invention is explained in more detail in the following figures using an exemplary embodiment, without being restricted thereto.

Fig. 1

ein Schaltgerät für ein Sammelschienensystem in einem geschlossenen Zustand in einer perspektivischen Ansicht,

Fig. 2

das Schaltgerät gemäß Fig. 1 in einer Seitenansicht,

Fig. 3

das Schaltgerät gemäß Fig. 2 in einer teilweise geschnittenen Ansicht,

Fig. 4

das Schaltgerät gemäß Fig. 3 in einem geöffneten Zustand mit Aufnahmeeinrichtungen in verschiedenen Zuständen in einer teilweise geschnittenen Ansicht,

Fig. 5

einen Teilbereich der Fig. 4,

Fig. 6

eine der Aufnahmeeinrichtungen des Schaltgeräts gemäß Fig. 4 in einer perspektivischen Darstellung,

Fig. 7

die Aufnahmeeinrichtung gemäß Fig. 6 in einer Explosionsdarstellung,

Fig. 8

die Aufnahmeeinrichtung in einer ersten Winkelstellung in einer Seitenansicht,

Fig. 9

die Aufnahmeeinrichtung gemäß Fig. 8 in einer zweiten Winkelstellung,

Fig. 10

die Aufnahmeeinrichtung in einer Schnittansicht gemäß der Linie X-X in Fig. 8,

Fig. 11

die Aufnahmeeinrichtung in einer Schnittansicht gemäß der Linie XI-XI in Fig. 9,

Fig. 12

eine Bewegungsabfolge beim Einbringen der Aufnahmeeinrichtung in einen Lagerabschnitt des Schaltgeräts und Überführen der Aufnahmeeinrichtung von der ersten Winkelstellung in die zweite Winkelstellung,

Fig. 13

ein Teilbereich des Schaltgeräts in einer Draufsicht in axialer Richtung,

Fig. 14

ein Aufnahmekörper der Aufnahmeeinrichtung in einer Schnittansicht gemäß der Linie XIV-XIV in Fig. 10,

Fig. 15

der Aufnahmekörper der Aufnahmeeinrichtung in einer perspektivischen Ansicht,

Fig. 16

eine Kontaktfahne der Aufnahmeeinrichtung in einer perspektivischen Ansicht.

Show it:

1

a switching device for a busbar system in a closed state in a perspective view,

2

the switching device according to 1 in a side view,

3

the switching device according to 2 in a partially sectioned view,

4

the switching device according to 3 in an open state with receiving devices in different states in a partially sectioned view,

figure 5

a portion of 4 ,

6

one of the receiving devices of the switching device according to 4 in a perspective view,

7

the receiving facility according to 6 in an exploded view,

8

the receiving device in a first angular position in a side view,

9

the receiving facility according to 8 in a second angular position,

10

the receiving device in a sectional view along the line XX in 8 ,

11

the receiving device in a sectional view along the line XI-XI in 9 ,

12

a sequence of movements when inserting the receiving device into a storage section of the switching device and transferring the receiving device from the first angular position to the second angular position,

13

a partial area of the switching device in a plan view in the axial direction,

14

a receiving body of the receiving device in a sectional view along the line XIV-XIV in 10 ,

15

the receiving body of the receiving device in a perspective view,

16

a contact lug of the receiving device in a perspective view.

The Figures 1 to 5 show a switching device 23 for a busbar system, the switching device 23 being designed here as a switching device 23 for a busbar system with three busbars. The switching device 23 has three input contacts 1 assigned to the respective busbar for contacting the busbar and three outgoing contacts 2 assigned to the respective input contact 1 . Furthermore, the switching device 23 has a fuse holder 3 assigned to the respective busbar, the fuse holder 3 serving here to hold a cylindrical D0 fuse link 5 . The respective fuse holder 3 has a receiving device 4 for receiving the respective fuse link 5 , the receiving device 4 being mounted in a bearing section 6 of the switching device 23 . The respective bearing section 6 has a first contact 13 and a second contact 14 , the first contact 13 being used for direct contacting of a first contacting surface 11 of the fuse link 5 on the end face.

The second contact 14 is used for indirect contacting of a second contacting surface 12 of the fuse link 5. The first contact 13 is designed in such a way that contacting in the axial direction Z is possible, whereas the second contact 14 is designed in such a way that radial contact is possible.

The receiving device 4 has first locking means 7 and the bearing section 6 has second locking means 8, with the receiving device 4 being displaceable in the bearing section 6 in the axial direction Z in a first angular position of the receiving device with respect to the bearing section 6 and in a second angular position of the receiving device 4 with respect to the bearing section 6, an axial displacement of the receiving device 4 with respect to the bearing section 6 is prevented by the interaction of the first and second locking means 7, 8. The 3 shows the switching device 23 with a closed cover 25 and the three receiving devices 4 in the second angular position. When the cover 25 is closed, the receiving devices 4 are not accessible to the user. The 4 shows the switching device 23 with the cover 25 open. With the cover 25 open, the receiving devices 4 are accessible to the user. The one in the 4 The receiving device 4 shown on the far left is in the first angular position and is arranged outside of the bearing section 6 . The middle receiving device 4 is in the first angular position and is inserted into the bearing section 6 . The receiving device 4 on the far right is inserted into the bearing section 6 and is in the second angular position. It is only possible to close the cover 25 if all three receiving devices 4 are in the respective bearing section 6 and in the second angular position.

In the present case, the first locking means 7 are designed as projections and the second locking means 8 are designed as recesses, with the receiving device 4 having exactly two diametrically designed projections and the respective bearing section 6 having exactly two diametrically designed recesses. Like that one in particular 4 As can be seen, the bearing section 6 also has a guide structure 18 formed in the axial direction Z, with this guide structure 18 serving to guide the first locking means 7 when the receiving device 4 is axially displaced in the bearing section 6 . Like this particular the 4 and the inside 12 illustrated sequence of movements can be seen, the insertion of the receiving device 4 takes place in the Bearing section 6 by pushing in the receiving device 4 in the axial direction Z, the guide structure 18 facilitating the insertion of the receiving device 4 . The receiving device 4 is removed correspondingly counter to the axial direction Z.

The fuse holder 3, in this case the holder device 4, has a prestressing means 9, the prestressing means 9 being in the present case formed by a mechanical helical compression spring. Like the one in particular 12 As can be seen from the receiving device 4 shown on the far right, which shows the receiving device 4 in a locking position, the fuse link 5 arranged in the receiving device 4 is prestressed with its first contacting surface 11 against the first contact 13 on the bearing section side. In the present case, the mechanical spring serves not only as a prestressing means 9, but also as a restoring means 9, since when the fuse link 5 is arranged in the receiving device 4, the receiving device 4 is axially displaced into the bearing section 6 against a restoring force of the mechanical spring. This is particularly the in the 12 shown sequence of movements.

In the present case, the second angular position corresponds to a latched position, with the latched position being realized in that the second locking means 8 have a recess 24 in their respective end region, with the receiving device 4 or the first locking means 7 are transferred into this recess by an axial movement counter to the direction of insertion, wherein in the position arranged in the recess the first locking means 7 prevents the receiving device 4 from rotating from the second angular position into the first angular position, insofar as a receiving device 4 takes a rest position. In order to transfer the receiving device 4 from the second angular position to the first angular position, it is therefore necessary first to move the receiving device 4 in the axial direction Z in the insertion direction against the restoring force of the restoring means 9 in order to release the latched position, and in this displaced position the Recording device 4 from the second angular position to the first angular position turn. The transfer of the receiving device 4 from the second to the first angular position takes place in the present case when looking in the axial direction Z in a counterclockwise direction (counterclockwise). The transfer of the receiving device 4 from the first to the second angular position takes place correspondingly in the opposite direction of rotation, thus clockwise (rotating to the right).

The receiving device 4 has a one-piece receiving body 15, the receiving body 15 having a cover section 16 and a casing section 17, the casing section 17 serving to accommodate the fuse link 5, the fuse link 5 being clamped in the receiving device 4. The fuse link 5 is mounted in the casing section 17 in an axially displaceable manner. Furthermore, the cover section 16 is designed as a handle.

The receiving device 4 has a contact lug 10 which is mounted in the receiving body 15 and serves to contact a second contacting surface 12 of the fuse link 5 . The contact lug 10 has a first contact section 19 for contacting the second contacting surface 12 of the fuse link 5 at the front and a second contact section 20 for contacting a second contact 14 on the bearing section side in the radial direction. The two contact sections 19, 20 are formed at an angle to one another, the angle being approximately 90° in the present case. The second contact section 20 protrudes radially outwards from the casing section 17 in order to enable contacting of the second contact 14 in the radial direction.

The contact lug 10 is mounted in the receiving body 15 in an axially displaceable and rotatable manner, with the prestressing means 9 or the restoring means 9 being arranged between the first contact section 19 of the contact lug 10 and the cover section 16 . Like this particular the 12 can be seen, the contact lug 10 is mounted in the receiving body 15 so that it can rotate through a limited angular range, the angular range in the present case corresponding to an angular difference between the first angular position and the second angular position. In this respect, a rotation of the receiving device 4, in this case the receiving body 15 with respect to the bearing section 6, is possible without the Contact lug 10 twisted. In the present case, after the axial insertion into the bearing section 6 , the contact lug 10 is mounted stationarily in the tangential direction in the bearing section 6 , in this case an axial groove 28 of the bearing section 6 .

The jacket section 17 has a through-opening for the second contact section 20 and a through-opening for a radially outer projection 21 of the first contact section 19 . A contact section 22 for axial interaction with the projection 21 is formed by the region of its jacket section 17 enclosing a through-opening, and a contact section 22 for axial cooperation with the second contact section 20 is formed by the other through-opening. The contact sections 22 limit the axial displacement of the contact lug 10 with respect to the receiving body 15 and prevent the contact lug 10 from being removed from the receiving body 15 in the axial direction Z or being pushed out by the mechanical spring.

For the purpose of assembly, the receiving body 15 is first provided and then the mechanical helical compression spring is arranged in a recess formed in the cover section 16 . Subsequently, the contact lug 10 is inserted with the second contact section 20 leading against the axial direction Z into the casing section 17 and led out of the through-opening associated with the second contact section 20 . Then, by a tilting movement of the contact lug 10 and a continuous displacement of the contact lug 10 or the first contact section 19 counter to the axial direction Z in the direction of the cover section 17, the first contact section 19 is displaced counter to the axial direction Z until the projection 21 of the first contact section 19 is arranged in the through-opening associated with the projection 21 . In order to facilitate assembly, the casing section 17 has an axially extending groove 26 radially on the inside, this groove 26 serving to accommodate and guide the projection 21 during assembly. In the present case, the groove is followed by a latching means 27, with the latching means 27 allowing the projection 21 to pass counter to the axial direction Z into the through-opening and allowing the in the through-opening to pass Through-opening arranged projection 21 blocked in the axial direction Z.

It is considered to be particularly advantageous that the receiving device 4 is formed from only three components, namely the one-piece receiving body 15, the one-piece prestressing means 9 or restoring means 9 and the one-piece contact lug 10. Due to the specific design of the individual components, only three Components realized immense practical advantages in the use of the switching device and the assembly. It is quite conceivable that the receiving device 4 has a holding means for holding the fuse link 5 in a clamped manner, for example in the form of a folded sheet metal, which is arranged in the casing section 17 and at least partially encloses the fuse link 5 to be held on the circumference.

Reference List

1

input contact

2

outgoing contact

3

backup recording

4

recording facility

5

fuse insert

6

storage section

7

first locking means

8th

second locking means

9

biasing means/restoring means

10

contact flag

11

first contact surface

12

second contact area

13

first contact

14

second contact

15

recording body

16

cover section

17

coat section

18

management structure

19

first contact section

20

second contact section

21

head Start

22

investment section

23

switching device

24

return

25

cover

26

groove

27

locking means

28

groove

Z

axial direction

Claims (12)

1. Switching device (23) for a busbar system, wherein the switching device (23) has an input contact (1), which is associated with the respective busbar of the busbar system, for making contact with the busbar, an outgoing contact (2) which is associated with the respective input contact (1), and a fuse receptacle (3) which is associated with the respective busbar, wherein the fuse receptacle (3) has a receiving device (4) for receiving a fuse insert (5), wherein the receiving device (4) can be mounted in a mounting section (6) of the switching device (23), wherein the receiving device (4) has first locking means (7) and the mounting section (6) has second locking means (8), wherein the receiving device (4) has a preloading means (9), wherein, in a locking position of the receiving device (4) and the mounting section (6), a fuse insert (5) which can be arranged in the receiving device (4) and has a first contact-making area (11) is preloaded against a mounting section-side first contact (13), wherein the receiving device (4) has a receiving body (15), wherein the receiving body (15) has a cover section (16) and a casing section (17), wherein the casing section (17) serves to receive the fuse insert (5), characterized in that, in a first angular position of the receiving device (4) with respect to the mounting section (6), the receiving device (4) can be moved in an axial direction (Z) in the mounting section (6) and, in a second angular position of the receiving device (4) with respect to the mounting section (6), interaction between the first and the second locking means (7, 8) prevents axial movement of the receiving device (4) with respect to the mounting section (6), wherein the receiving device (4) has a contact lug (10), which is mounted in the receiving body (15), for making contact with a second contact-making area (12) of the fuse insert (5), wherein the contact lug (10) is movably mounted in the receiving body (15) and wherein the preloading means (9) is arranged between the contact lug (10) and the cover section (16).
2. Switching device (23) according to Claim 1, wherein the first locking means (7) are in the form of projections and the second locking means (8) are in the form of recesses.
3. Switching device (23) according to Claim 1 or 2, wherein the mounting section (6) has a guide structure (18) for guiding the first locking means (7) during the axial movement of the receiving device (4).
4. Switching device (23) according to one of Claims 1 to 3, wherein the fuse receptacle (3), preferably the receiving device (4), has a resetting means (9), wherein, when the fuse insert (5) is arranged in the receiving device (4), the receiving device (4) moves axially into the bearing section (6) against a resetting force of the resetting means (9).
5. Switching device (23) according to Claim 4, wherein the receiving device (4) has the resetting means (9).
6. Switching device (23) according to Claim 4 or 5, wherein the preloading means (9) forms the resetting means (9).
7. Switching device (23) according to one of Claims 1 to 6, wherein the casing section (17) has the first locking means (7).
8. Switching device (23) according to one of Claims 1 to 7, wherein the contact lug (10) has a first contact section (19) for making contact with the end side of the fuse insert (5) and has a second contact section (20) for making contact with a bearing section-side second contact (14), wherein the two contact sections (19, 20) are formed at an angle in relation to one another.
9. Switching device (23) according to one of Claims 1 to 8, wherein the preloading means (9) and/or the resetting means (9) are/is arranged between the contact lug (10) and the cover section (16), preferably are/is arranged between the first contact section (19) and the cover section (16).
10. Switching device (23) according to one of Claims 1 to 9, wherein the contact lug (10) is mounted in the receiving body (15) rotatably about a limited angular range, the angular range preferably corresponding to an angular difference between the first angular position and the second angular position.
11. Switching device (23) according to one of Claims 8 to 10, wherein the first contact section (19) has a projection (21) radially on the outside, wherein the casing section (17) has an abutment section (22) for axially interacting with the projection (21).
12. Switching device (23) according to one of Claims 8 to 11, wherein the mounting section has an axial groove (28) for receiving the contact lug (10), in particular for receiving the second contact section (19) of the contact lug (10).

Images