CN101552165B

CN101552165B - Switch disconnector

Info

Publication number: CN101552165B
Application number: CN2009101299128A
Authority: CN
Inventors: 亚历克斯·布特尼
Original assignee: Woehner GmbH and Co KG Elektrotechnische Systeme
Current assignee: Woehner GmbH and Co KG DE; Woehner GmbH and Co KG Elektrotechnische Systeme
Priority date: 2008-04-01
Filing date: 2009-04-01
Publication date: 2012-11-28
Anticipated expiration: 2029-04-01
Also published as: DE102008016648A1; CN101552165A

Abstract

The present invention relates to a switch disconnector comprising a housing portion, in which several pairs of blade receiving contacts assigned to each other or the like are arranged, which can be bridged by means of fuses, possibly comprising shock protection covers at least partially covering contact blades, and comprising a lid for receiving said fuses, which is provided in a manner hinged to the housing portion, wherein several receiving means in the form of slots, grooves or the like are formed at the inside of the lid, wherein one bearing cage is provided per fuse, and each bearing cagecomprises a cage portion for inserting a fuse, wherein the cage portion is fit to the shape of the fuse to be inserted, and each bearing cage is provided with fasteners, which can be inserted in and snapped into predetermined receiving means for fastening the bearing cage to the lid respectively.

Description

Switch disconnector

Technical field

The present invention relates to a kind of switch disconnector.

Background technology

Switch disconnector is from for example learning the DE 102006022374A1.This switch disconnector comprises at least one housing parts, and said housing parts comprises the reception knife blade contact, and it is right that said reception knife blade contact is used for receiving fuse by mutual distribution, also is that the logarithm of fuse is corresponding with number of poles.In addition, each receive knife blade contact to along the axis setting of housing parts and respectively with the parallel axes of housing parts, be used to receive the contactor blade of fuse.

The preferred protection against electric shock cover that uses in this switch disconnector; Said protective cover is overlapping with the reception knife blade contact at least in part; Make that all remaining current-carrying parts are covered except groove, it is set that said groove receives knife blade contact for the contact blade with fuse contacts.Said housing parts is provided with the lid that pivot-hinge is received this housing parts.Whether the upper surface at lid comprises translucent or transparent cover cap preferred made of plastic, see through said cover cap and can observe fuse and inserted or possibly fuse.Inboard at lid is provided with receiving tool, is used for each fuse is installed to the lower surface of lid, thereby makes said fuse be installed on the lid and can transport with lid accordingly when the pivot caps period of the day from 11 p.m. to 1 a.m with stable status.Fuse load switch with housing parts preferably is connected with conductor rail through adapter.The adapter that is used for the receiving key circuit breaker can be designed to, and makes this adapter to receive housing parts with variable input direction.

This switch disconnector is used for practical application and uses with the IEC fuse, for example, and common 60269 types in Europe.

In U.S.'s employing is the cylindrical fuse of UL type J class.Pliers or similar instrument with insulation respectively will be according to the cylindrical fuse taking-up of UL standard and the bottoms of inserting fuse; Make under the situation that three utmost points of fuse are arranged; For example; Said fuse must be arranged to have sizable distance each other, so that the pliers of the enough insulation of ability or similar instrument surround fuse in both sides so that insert or take out fuse respectively.

Summary of the invention

The objective of the invention is to design the switch disconnector of mentioning type at first, make under as far as possible little space requirement, to use according to the fuse of UL standard and guarantee simultaneously and have no to insert difficultly and take out fuse.

Device according to the present invention is realized through a kind of switch disconnector of housing parts that comprises; Wherein many butt joints sheet contact of returning sword relative to each other distributes or is arranged in similarly in the housing parts and can enough fuse bridge joints, and said switch disconnector can comprise and be used for hiding the protection against electric shock cover that receives knife blade contact at least in part, and comprise the lid that is used to hold said fuse; Said lid is provided with the mode that is articulated in said housing parts; Wherein, a plurality of receiving systems are formed at the inboard of lid with the form of slit or groove, wherein for each fuse a supporting cover are set; Each supporting cover comprises the cover part that is used to insert fuse; Wherein, cover part is complementary with shape with the fuse that inserts, and each supporting cover is provided with securing member; Said securing member can insert and be buckled in the predetermined receiving system, is used for supporting cover is fastened to lid respectively.

Provided the further embodiment of the present invention in the dependent claims.

Switch disconnector according to the present invention is respectively fitted with a supporting cover to each fuse, and said supporting cover is used for receiving the cylindrical fuse according to the UL standard.Each supporting cover is complementary with the external shape of relevant fuse.For the cylindrical fuse according to the UL standard, each supporting cover all comprises the cover part, and the internal diameter of said cover part is a bit larger tham the normal diameter of this type of fuse, is used to compensate the diameter tolerance of cylindrical fuse.

Each supporting cover all is provided with securing member, and said securing member is from supporting cover expenditure and be used in the lid inboard supporting cover being inserted into corresponding receiving system, for example with slit, and groove or the similar receiving system that forms of form.

In a preferred embodiment, cover part forms cylindrical and is included in the patchhole of a side and in the boundary wall of opposite side.Said boundary wall is provided with the slit that the reception contact that is used to guide fuse passes through.In addition, boundary wall can be provided with ventilation slot.

In another embodiment; Supporting cover is formed with the sidepiece of extension in the zone of the patchhole of cover part; Said sidepiece is used to the creep currents that possibly occur and prolongs the path of creep currents, so that avoid adjacent supporting cover and insert the creep currents between the fuse in this supporting cover.

In another embodiment, the cover part is provided with the middle casing part, on said middle casing part, is formed with securing member.The middle casing part is used for limiting the cover part apart from the inboard particular distance of lid place especially; So that guarantee to play in working order the contactor blade of fuse accurately to be inserted in the reception knife blade contact of correspondence of housing parts; That is, the position of the blade of fuse part is as far as possible accurately relative with the reception knife blade contact.

In a preferred embodiment, middle casing partly is provided with ventilation slot and comprises approximate tetragonal opening in addition, can see fuse from the upper surface of lid through said opening.

In another embodiment, supporting cover is provided with locking device in the zone of patchhole, and said locking device is used for fixing relevant fuse and shifts out from the cover part to prevent fuse.Locking device is preferably nose and is supported in the guider, so as can with this locking device of direction adjusted of the axis normal of supporting cover.

In another embodiment, cover part is provided with at least in part along the ring of circumference, and the external diameter of said ring is greater than the external diameter of cover part.When using a plurality of cover part on the useful space in housing parts; This structure is used to make between the adjacent cover part and only in the zone of loop section, can contacts, thereby the distance between the adjacent fuse is configured to as much as possible greatly to avoid creep currents.

In a preferred embodiment, switch disconnector is provided with the middle casing part, is furnished with well shape portion (well) in the said middle casing part, is used to hold the display unit of the operating state of the fuse that is used to show insertion.Said display unit advantageously is designed to, and makes display unit under the situation that fuse breaks down or fuses, light or glimmer.

In a kind of preferred embodiment of said switch disconnector; Display unit is formed by a light-emitting diode that is arranged on the printed circuit board at least; Wherein, the well shape portion that is used to hold display unit for example is the display unit of light-emitting diodes form of tubes except that comprising, also hides with cover cap; Make the top that display unit is positioned cover plate, and therefore observe from the outside easily.

In another embodiment, the securing member of supporting cover is formed on and makes in two interconnected handles of securing member.In this embodiment, handle portion is inserted in the receiving system.

Description of drawings

With accompanying drawing the preferred embodiment according to switch disconnector of the present invention is described below, wherein:

Fig. 1 is the exploded view of a preferred embodiment of switch disconnector;

Fig. 2 is the upward view of lid that does not have the switch disconnector of fuse;

Fig. 3 is the view that has fuse and supporting cover corresponding to Fig. 2;

Fig. 4 is a supporting cover and according to the sketch map of the fuse of UL standard;

Fig. 5 is the sketch map of supporting cover with fuse of insertion;

Fig. 6 is the rearview corresponding to the supporting cover of Fig. 5;

Fig. 7 is the perspective view according to the supporting cover of the fuse with insertion of another modification execution mode;

Fig. 8 is the perspective view of supporting cover with display unit of the operating state that is used to show relevant fuse;

Fig. 9 is the sketch map of connection contact that is used to explain display unit corresponding to Fig. 8; And

Figure 10 is the perspective view of a preferred embodiment of display unit.

Embodiment

Fig. 1 shows a preferred embodiment of switch disconnector.Said switch disconnector comprises lid, and an end of said lid is respectively equipped with support legs and rotation leg 2,3.Lid 1 is installed on the housing parts 4, wherein the

rotation leg

2,3 of lid be connected to formed fulcrum post 5,5 on the housing parts 4 ', 6,6 ', according to shown in Figure 1, fulcrum post is to be arranged on the inwall of housing parts 4 in pairs and relative to one another.Therefore, lid 1 can be installed to housing parts 4 on the direction shown in Fig. 1 or under the state at Rotate 180 °, wherein, and rotation leg 2 under first kind of situation; 3 be connected to holding pin 5,5 ', and when lid 1 Rotate 180 °; The

rotation leg

2,3 be connected to holding pin 6,6 '.

In switch disconnector shown in Figure 1, receive

knife blade contact

8,9,10 and 11,12,13 and as one man be arranged in the housing parts 4 with the number of poles of expecting respectively.Receive knife blade contact 8,11; 9,12 and 10,13 face mutually each other respectively, wherein 8,11 etc. each to being used to receive fuse.In a preferred embodiment, said reception knife blade contact 8 to 13 is hidden by protection against

electric shock cover

15,16 and reaches such degree, and the slit maintenance that only is useful on the contactor blade that inserts each fuse is an opening.The adapter 18 that is provided with anti-contact (counter-contact) is preferably used for case member 4 is connected on the unshowned conductor rail, and wherein said anti-contact electrically contacts with the output contact that receives knife blade contact 8 to 13.These are not further shown in Fig. 1.

Said lid 1 is used for the installation insurance silk, said fuse in Fig. 1 with 20,21,22 marks.

Fig. 2 has shown the upward view of the said lid 1 with said guider; In according to preferred embodiment shown in Figure 2; Under the situation of triple-pole switch circuit breaker, said guider comprises that other three couple of branch receives

slit

24a, 24b, 25a, 25b and 26a, 26b.In an illustrated embodiment; Said reception slit comprises a receiver hole 241 respectively; Receiver hole 241 comprises the tapered slot part 242 (with reference to Fig. 2) that is adjacent; The securing member of feasible each supporting cover that also will explain after a while can side by side be inserted in the said receiving system, till securing member is fixedly joined to said lid 1.

Fig. 3 shows the view of the fuse that has insertion of corresponding diagram 2.Fig. 3 shows fuse 20 to 22, and each fuse 20 to 22 is inserted into respectively in the supporting

cover

30,31,32 among the figure.Hereinafter can be done detailed description to supporting cover.Front end face at said lid 1 is provided with protection against electric shock spare 33; Said protection against electric shock spare preferably has the shape of L shaped plate; And when firmly grasping said lid 1 through the ring 34 that is arranged on this place, protection against electric shock cover 33 can prevent to point near the housing parts 4 below the ring.

Clearly visible from Fig. 3, when receiving fuse 20 to 22, supporting

cover

30,31,32 is arranged on the lower surface place of said lid 1 parallel to each other and and then closely is provided with each other, that is, be provided with the mode of saving the space.

Fig. 4 has shown and has been marked as 30 supporting cover and the sketch map that is labeled as 20 fuse according to the UL standard.Have the cylinder form and the

contactor blade

36,37 of expenditure from the side according to the fuse of UL standard, said contactor blade according to shown in Figure 1 electrically contact receive knife blade contact 8 to 13.Said supporting cover 30 comprises cover part 30a, and said cover part forms cylindrical on a large scale and is complementary with the external shape of fuse 20 respectively, and the internal diameter of cover part is a bit larger tham the external diameter of said fuse 20.Supporting cover 30 and the supporting

cover

31,32 that correspondingly forms all comprise patchhole 39, and

fuse

20,21,22 can be inserted into respectively in the supporting

cover

30,31,32 through said patchhole.Preferably the sidepiece at the patchhole 39 that covers part 30a is provided with cantilever arm 40,41.Be labeled as 43 the extension that arm 40,41 exceeds cover part 30a that has been shown in dotted line among Fig. 4.The extension that arm 40,41 is caused causes the effect of good insulation between the adjacent fuse, particularly strengthens the length in the creep currents path between the adjacent fuse, thereby avoids producing between the adjacent fuse creep currents.

Middle casing part 45 is adjacent with cover part 30.Said middle casing part 45 preferably includes the wall with groove, and wherein the groove in the wall of middle casing is used for radiations heat energy for the purpose of ventilating, and heat discharges from each fuse during operation.

Said middle casing part 45 is used in particular for the height with respect to the height placement cover part 30a of said lid 1, makes when said lid 1 is closed, and the

contactor blade

36,37 of each

fuse

20,21,22 is properly inserted in and receives in the knife blade contact 8 to 13.That is, said middle casing part 45 is used to guarantee the preset space length of said cover part 30a with respect to inner lid.

According to Fig. 4 to 10, supporting cover 30 comprises the locking device 48 of the form that is preferably movable bar, nose 48a or like, in the middle casing part or at middle casing, partly locates, and said nose can be moved with meeting at right angles with the axis of supporting cover 30.In Fig. 4 and Fig. 5, in case corresponding fuse 20 is inserted in the cover part, locking device 48 is just mobile along being directed downwards of arrow 48b, and prevents that fuse from automatically moving or being pushed out cover part 30a.For this reason at middle casing part 45 places; Locking device 48 channeling conduct in guide groove 49 or similar parts; And move down through unshowned spring; Or lean on the gravity of self to move to the position shown in Fig. 5, wherein locking device 48 overlaps on the corresponding fuse 20 through nose 48a.

In described embodiment, guide groove 49 preferably is provided with along securing member 56.

In described embodiment, said middle casing part 45 comprises wall, and said wall preferably is provided with slit and defines open cross-section 50 in addition, can see each

fuse

20,21,22 from the lid outside through said open cross-section.Can understand fully in this way whether fuse has fused and whether fuse is present in the supporting cover respectively.

Fig. 6 has shown the rearview of supporting cover 30.The back side at cover part 30a is provided with wall 52, and said wall will cover part 30a and seal from the back side.In described embodiment, the reception slit 53 (for example with reference to Fig. 3) that said wall 52 is provided with vertical extent and therefore extends perpendicular to said lid 1, the said contactor blade 36 of fuse 20 can be directed passing said reception slit.Guarantee said contactor blade 36 in this way perpendicular to the axis location of cover part 30a and therefore be parallel to and receive knife blade contact 8 to 13, that is, said fuse 20 is because slit 53 is passed in guiding inserts in the supporting cover 30 at the place, service position of this fuse.Guarantee that through accepting slit 53 said fuse only is inserted completely among the said cover part 30a in the proper position of this fuse.If said contactor blade 36 is given prominence to the slit 53 from said acceptance fully, so said fuse 20 can only use locking device 48 to pin.

Can see from Fig. 4 to Fig. 6 in addition, about the center of said cover part 30a and with mode ring 55 is set greatly around circumference.The external diameter of said ring 55 is greater than the external diameter of said cover part 30a.Therefore, under the situation of supporting cover 30 to 32 that is arranged in parallel according to Fig. 3 and simultaneously under the situation of said supporting cover contact, guarantee adjacent supporting cover only through said ring 55 not the wall through supporting cover contact with each other.Therefore, guarantee that the path of creep currents is limited on each ring 55, and can prevent the creep currents between the adjacent fuse.

In described embodiment, the free end that guider preferably is formed at the top of each supporting cover and is formed at middle casing part 45 respectively with the form of securing member 56,57.Said securing

member

56,57 is respectively the shape of approximate T shape and is used for correspondingly being inserted into reception slit 24a to 26b.

Guiding parts and securing

member

56,57 respectively preferred parallel in supporting cover 30 to 32 axially and be spaced from each other.According to a preferred embodiment, preferably be labeled as 50a well shape portion four-sided openings cross section 50 outstanding exceed the securing member 56 of the said well shape 50a of portion, between 57.

Therefore, for the structure of described supporting cover, can manually each

fuse

20,21,22 be removed from the lid 1 of switch disconnector individually in case lid 1 is just opened, and not need tool using for this reason.Fuse can be released from supporting cover after removing supporting cover.The program of insertion fuse in contrast.

In a preferred embodiment of supporting cover 30 to 32, advantageously, for the heat that discharges by the fuse radiation is provided with through hole or opening 62,63 in the zone line of the wall of said supporting cover.Opening 62 is aimed at open cross-section 50 substantially.

Fig. 7 shows another embodiment of supporting cover, and wherein securing

member

56,57 comprises and is labeled as 64 handle.Here, according to Fig. 4 to 6, said handle 64 forms the connecting portion of securing member 56,57.If opposite with the above embodiments, supporting cover does not insert lid 1, and so said handle is used for manually removing the single supporting

cover

30,31,32 that has fuse from switch disconnector.

A preferred embodiment that in Fig. 8 and Fig. 9, has shown the supporting cover that has display unit.

Below the display unit with 70 marks preferably is positioned at the well shape 50a of portion, makes it possible to see through lid from the outside and sees said display unit.Said display unit 70 comprises at least one

modulation element

71,72, and preferred two LED71,72, said LED are connected to printed circuit board 74 and in the well shape 50a of portion, project upwards in described embodiment.With the sealing display unit cover plate 75 is set for hiding printed circuit board, said cover plate comprises the opening that does not further indicate, and is used for guiding said

display lamp

71,72 to pass through.

As shown in Figures 8 to 10, the shape of the shape of cover plate 75 and printed circuit board 74 preferably is complementary with the open cross-section 50 of the well shape 50a of portion.The

contact

76,77 of side expenditure is preferably formed into spring contact and at free end support

spring contact part

76a, 77a, and

contact

76,77 is arranged on the printed circuit board 74.According to Figure 10, said

contact

76,77 is guided from middle housing 45 along side direction, thereby spring

contact part

76a, 77a can be electrically contacted with the

relevant contactor blade

36,37 of the fuse that inserts.As seen in fig. 10, said

contact

76,77 has the web shape substantially, and said web is in substantially parallel relationship to the axis of supporting cover 31 above cylindrical fuse 20.Contact 77 comprises approximate 90 ° of contact part 77b that pay downwards in the front of spring contact part 77a; If said locking device 48 adopts the latched position shown in Figure 10, said contact part 77b and locking device 48 are overlapping under the state that has inserted fuse 20 so.Double

diode system

71,72 is set in the preferred embodiment shown in Fig. 8 to 10, when the fuse 20 that inserts with box lunch damages, lights or glimmer for one in two diodes 71,72.Through using two light-

emitting diodes

71,72 under the situation that need not consider direction, to use display unit, that is, in two light-emitting

diodes

71,72 one lights under the situation that fuse 20 damages and need not consider electric current.

Advantageously, can visually perhaps observe according to display unit of the present invention from the lid outside through transparent or semitransparent cover cap 78 (Fig. 1) inspection that forms at lid.According to the present invention, each supporting cover all is provided with display unit 70.Therefore, can be in the triple-pole switch circuit breaker through each all three fuses of display unit inspection of cover cap 78 usefulness.

Claims

1. switch disconnector; Said switch disconnector comprises housing parts (4); In said housing parts, be furnished with many reception knife blade contacts (8-13) to relative to each other distributing; Said reception knife blade contact can pass through fuse (20,21,22) bridge joint, and said switch disconnector also comprises the protection against electric shock cover (15,16) that is used for hiding at least in part said reception knife blade contact (8-13), and said switch disconnector also comprises the lid (1) that is used to hold said fuse (20,21,22); Said lid is provided with the mode that is articulated in said housing parts (4); Wherein, a plurality of receiving systems (24a-26b) are formed at the inboard of said lid (1) with the form of slit or groove

It is characterized in that,

For each fuse (20,21,22) is provided with a supporting cover (30,31,32),

Each supporting cover (30,31,32) all comprises the cover part (30a) that is used to insert fuse (20,21,22),

Wherein, said cover part (30a) is complementary with shape with the fuse that inserts, and

Each supporting cover (30,31,32) all is provided with securing member (56,57), and said securing member can insert and be snapped in the predetermined receiving system (24a-26b), be used for said supporting cover (30,31,32) is fastened to said lid (1) respectively, and

Said supporting cover (30,31,32) is arranged in the downside of said lid (1) parallel to each other.

2. switch disconnector as claimed in claim 1 is characterized in that, each said cover part (30a) all forms cylindrical.

3. switch disconnector as claimed in claim 1 is characterized in that, each said cover part all is included in the patchhole (39) of a side and in the boundary wall (52) of opposite side.

4. switch disconnector as claimed in claim 1 is characterized in that, each said supporting cover (30,31,32) all comprises boundary wall (52), and said boundary wall is provided with the slit (53) that the contactor blade that is used to guide said fuse (20,21,22) passes.

5. switch disconnector as claimed in claim 1 is characterized in that, each supporting cover (30,31,32) all comprises boundary wall (52), said boundary wall have the ventilation slot that is formed in this boundary wall (54a, 54b).

6. switch disconnector as claimed in claim 1; It is characterized in that; Each said supporting cover (30,31,32) is included in the patchhole (39) and the arm portion (41) in the zone of said patchhole (39) of a side, and said arm portion extends beyond said cover part (30a).

7. switch disconnector as claimed in claim 3 is characterized in that, said cover part (30a) comprises middle casing part (45), and said securing member (56,57) is arranged in said middle casing and partly locates.

8. switch disconnector as claimed in claim 7 is characterized in that, said middle casing part (45) comprises the have ventilation slot wall of (54a, 54b).

9. switch disconnector as claimed in claim 7 is characterized in that, each supporting cover (30,31,32) all comprises the locking device (48) that is used for fixing relevant fuse (20,21,22) in the zone of patchhole (39).

10. switch disconnector as claimed in claim 9 is characterized in that, said locking device (48) comprises nose (48a) of locking, and is supported in the guider (49) adjustablely, and said guider is arranged on said middle casing part (45) and locates.

11. switch disconnector as claimed in claim 1 is characterized in that, said cover part (30a) is provided with at least in part around the ring (55) of circumference, and the external diameter of said ring is greater than the external diameter of said cover part (30a).

12. switch disconnector as claimed in claim 1; It is characterized in that; Each supporting cover (30,31,32) all comprises the middle casing part (45) with well shape portion (50a); In said well shape portion, insert display unit (70), said display unit is provided with the contact (76,77) of the contactor blade (36,37) that is used to contact relevant fuse (20).

13. switch disconnector as claimed in claim 12; It is characterized in that; Said display unit (70) comprises printed circuit board (74); Said printed circuit board (74) comprises light-emitting diode assembly (71,72), and wherein, the contact (76,77) that is used to be electrically connected the said contactor blade (36,37) of each fuse (20,21,22) is arranged on said printed circuit board (74) and locates.

14. switch disconnector as claimed in claim 13 is characterized in that, said contact (76,77) comprises spring contact part (76a, 77a).

15. a supporting cover that is used for switch disconnector is characterized in that,

Cover part (30,30a) has the substantial cylindrical shape and is used for holding removedly fuse (20), and comprises that said securing member is provided with parallel to each other and is spaced from each other from said cover (30,30a) outstanding securing member (56,57) partly, and

Said cover part also comprises the boundary wall (52) that is provided with guide slit (53) and the patchhole (39) relative with said boundary wall,

Wherein, Said guide slit (53) is provided for holding the contactor blade (36,37) of said fuse (20); Said cover part (30,30a) comprises at least in part the ring (55) around circumference; The external diameter of said ring is greater than the external diameter of said cover part (30,30a), and said supporting cover also comprises middle casing part (45), and said middle casing part (45) and said cover be (30,30a) arranged adjacent and be provided with said securing member (56,57) partly.

16. supporting cover as claimed in claim 15; It is characterized in that; Between said securing member (56,57), arrange well shape portion (50a); Said well shape portion is used to hold display unit (70), and said display unit has the contact (76,77) of the said contactor blade (36,37) that is used to contact said fuse (20).