WO2014029560A1

WO2014029560A1 - Handle and circuit breaker, multistage circuit breaker and circuit breaker with accessory part

Info

Publication number: WO2014029560A1
Application number: PCT/EP2013/065016
Authority: WO
Inventors: Jia Chen; Stefan Höhe; Ping Ping Jin; Liang Zhang
Original assignee: Siemens Aktiengesellschaft
Priority date: 2012-08-22
Filing date: 2013-07-16
Publication date: 2014-02-27
Also published as: BR112015003579B1; CN108109887A; CN108109887B; EP2888753A1; BR112015003579A2; IN2015DN01136A; CN103632896A; EP2888753B1

Abstract

The invention relates to a handle, said handle (10) having a body (12) that can be provided axially on a switching system and an actuating part (14) that is provided protruding from said body (12). Said actuating part (14) extends along the axial direction of said body (12) and an elevation (142) protruding from said actuating part (14) is provided. Such a concept with simple structure and uncomplicated realisation can uniformly use one type of handle sheath (handle sheath with elongated hole) for undertaking the appropriate adjustment, and therefore the assembly process is considerably simplified.

Description

description

Handle and circuit breaker, multi-stage circuit breaker and circuit breaker with accessory

Technical area

This invention relates to a handle, as well as a circuit breaker, a multi-stage circuit breaker and an accessory circuit breaker using this handle, and more particularly relates to a handle which can be suitably used with a handle cover, and a circuit breaker, a multi-stage circuit breaker and a circuit breaker Accessory using this handle.

State of the art

Hand grips are required on the handles of multi-stage circuit breakers to connect the handles of the individual stages, so that the products are better combined into a whole. At the same time multi-stage products can be mounted with accessories of various kinds, the outstanding end of the accessories can also be plugged into this handle cover. Since the lengths of the protruding ends of accessory handholds of different types differ, the lengths of the openings in the handle sheaths associated with the protruding ends of the accessories are also different, and consequently the handguard sheaths have the two different types of slotted holes and short holes , The appearance of the handle covers is identical, only the length of the internal openings is different, so it can very easily come to a faulty assembly during installation. The present method is usually such that additional fine markings are applied to different handle covers to distinguish handle covers with slots and short holes, then the appropriate handle cover is applied according to the requirements of the product. Or, after attaching the handle cover, a hole depth tester is used to judge if it is the correct handle cover. However, the distinction of small markings to distinguish the handle covers with slots and short holes is just as easily overlooked as the product itself existing long and short holes in a sole rely on the visual inspection before mounting to prevent problems of incorrect installation of handle covers anyway occur. In this way it can also happen that accessories with defective types are mounted. Testing with a tester is also just a post-assembly test, and timely detection of problems before and during assembly is not possible.

Subject of the invention

An object of this invention is to provide a handle that can be easily and correctly used with handle covers.

Another object of this invention is to provide a circuit breaker having this handle.

Another object of this invention is to provide a multi-stage power switch formed by multiple circuit breakers with this handle.

Another object of this invention is to provide a circuit breaker with an accessory that can very simply cause the handle cover to be correctly positioned on the handle Handle of the corresponding product is mounted, and realized the requirement that are mounted on products of different types of accessories corresponding to the different types.

This invention provides a handle, said handle having a body which can be axially provided on a switchgear, and an actuating part provided on said body protruding, said actuating part extending along the axial direction of said body, and on the said actuating part a survey is provided protruding.

In this way, the handle can be mounted with collection relatively simple and straightforward in the handle cover, in addition, since a survey is provided on the handle, such a handle can be easily distinguished from current operations, the operator can directly according to the differences of the handles Mount the corresponding handle covers. After the original handle covers with long holes and handle covers with short holes are mounted on each of the products, the appearance of a test is not possible. If a case of incorrect installation of a handle cover occurs and a handle to be mounted with a short hole is incorrectly mounted as handle cover with slot, then subsequently the accessories are mounted incorrectly, but a timely discovery is not possible. However, after this change of the handle, the handles of the products themselves are differentiated, upon completion of the assembly, the product itself determines the type of accessory mounted, it will not come to fitting a wrong accessory type due to the mounting of the handle cover. In addition, it is only necessary for such a construction, in addition to attach a small survey on the handle in order to meet the performance requirements of Being able to realize products, the construction is simple, the realization is uncomplicated.

In one embodiment of this invention, said handle may be provided in a handle sheath encapsulated, the two end portions of said handle sheath each having an interior extending in the extension direction of said handle sheath, after placing said handle sheath on said handle, said Survey at least partially penetrate into said interior.

In the original design, the handle sleeves with elongated holes and the handle sleeves with short holes are similar in appearance, only the length of the holes of the inside has differences. In the assembly process, a determination is not readily possible, a re-assembly after a special distinction is required. In addition, it is easily ignored, resulting in incorrect handle covers being mounted, causing the problem of duplication of work. However, in the embodiments of this invention, after making the respective changes to the handles, a kind of handle cover (handle cover with slotted hole) can be uniformly used, thereby greatly simplifying the mounting process.

In one embodiment of this invention, the extension length of said elevation in the axial direction of said body is shorter than the extension length of said inner space in the direction of extension of said handle shell.

After the handle has been fitted in the handle shell, due to the presence of the protrusion and due to the fact that its extension length in the axial direction is shorter than the extension length of the interior in the extension direction of the handle shell, in this way, the interior practically be shortened, and accordingly it is also ensured that only matching accessories can protrude into the interior.

In one embodiment of this invention, the height of said elevation is not greater than the diameter of said interior space.

This invention also provides a circuit breaker comprising any handle described above.

This invention also provides a multi-stage circuit breaker comprising a plurality of circuit breakers as described above, and further comprising a handle cover, said handle cover can be placed on the handle of each said circuit breaker and the individual circuit breakers can interconnect, the two end portions of said handle cover each having an interior space have, extending in the extension direction of said handle shell, after placing said handle shell on the said handle said elevation at least partially can penetrate into said interior space.

This invention also provides an accessory circuit breaker comprising an electrical accessory, said electrical accessory having an accessory handle, said accessory handle having a protruding end that protrudes in the direction of extension of said accessory handle, and further comprising The multi-stage circuit breaker described above, the protruding end of said accessory handle extends at least partially into the interior of one end of said handle wrap and is blocked by said elevation. For the original design, two types of handle sheaths are required to realize the function of differentiated assembly of different types of accessories. In this embodiment, however, with the use of a kind handle handle also the differentiated assembly of accessories of different types can be realized by reduced costs for molds and material are saved on a large scale cost of production, manufacturing and maintenance.

Description of the drawings

Hereinafter, in a clear and easily understood form by the description of the preferred embodiments and in conjunction with the drawings, the above-mentioned features, technical features and advantages of this invention and their implementation forms further described, wherein:

Drawing 1 is a schematic representation of a handle presented by an embodiment of this invention.

Figure 2 is a schematic representation of a present handle wrapper, wherein (a) is the bottom view and (b) is the front view.

Figure 3 is a schematic representation of another present handle wrapper, wherein (a) is the bottom view and (b) is the front view.

Figure 4 is a partial sectional view of a handle presented by an embodiment of this invention after fitting in the handle cover shown in Figure 2. Drawing 5 is a partial sectional view of the joint connection of an accessory with the combination shown in drawing 4.

Figure 6 is a schematic representation of a circuit breaker, multi-stage circuit breaker and circuit breaker with accessory presented by one embodiment of this invention.

Explanation of the label:

10 handle 12 body 14 actuator122

supply part axial opening

142 Survey 60 Power70 Accessory 71 Accessory switch Handle

72 herausra80a Handgrip80b Handgrip81 Interior gende End cover (with cover (with (oblong hole)

Long hole) short hole)

82 Interior 83 90 100 Performance (short hole) Interval of multi-level switch with

Performance accessory switch

Concrete embodiments

For a clearer understanding of the technical features, objects and effects of the invention, reference will now be made, with reference to the drawings, to the specific embodiments of this invention, wherein identical labels in the several drawings indicate identical parts.

As shown in Drawing 1, this invention presents a handle 10, the handle 10 has a body 12 and an operating part provided protruding on said body 12, the body 12 has an axial opening 122 through this axial opening 122 can he Handle 10 may be provided axially on a switchgear, and the actuating member 14 extends along the axial direction of the body 12, by driving the operating member 14, then the opening and closing of the switchgear can be controlled.

It has to be pointed out that in this exemplary embodiment, an elevation 142 is still provided on the actuating part 14.

After the original handle covers with long holes and handle covers with short holes are mounted on each of the products, the appearance of a test is not possible. If a case of incorrect installation of a handle cover occurs and a handle sleeve to be mounted initially with short hole is incorrectly mounted as a handle cover with slot, then subsequently the accessories can be mounted incorrectly, but a timely discovery is not possible. However, after this change of the handle, the handles of the products themselves are differentiated, upon completion of the assembly, the product itself determines the type of accessory mounted, it will not come to fitting a wrong accessory type due to the mounting of the handle cover. In addition, it is only necessary for such a construction, in addition to attach a small survey on the handle in order to realize the performance requirements of the product, the structure is simple, the implementation is straightforward.

In concrete terms, this means that the handle 10 can be suitably used with the handle cover, for example the handle 10 is provided in the handle cover in a covered manner.

As shown in the drawings 2 and 3, there are two types of the present handle sheaths: the handle sheath with slot 80a and the handle sheath with short hole 80b, both are identical in appearance, including the inside diameter D of the holes, which is also identical, only the length of the internal opening is different. The so-called slot and short hole practically refers to the interior of the end portion of the handle cover which extends inward along the extension direction of the handle cover, when the extension length of the inner space 81 is relatively large (LI), this can be understood as a slot, and if the Extension length of the inner space 82 is relatively small (L2), this can be understood as a short hole.

After the handle cover 80a, which has a slot 81, is placed on the handle 10, the elevation 142 on the handle 10 at least partially penetrate into the interior 81, in this way, practically the extension length of the interior is shortened, so that the " Langloch "to a" short hole "is changed.

The reason is that in the original design, the handle covers with slots and the handle covers with short holes are the same in appearance, only the length of the holes of the inside has differences. In the assembly process, a determination is not readily possible, it is a special distinction required before the assembly takes place. In addition, it is easily ignored, resulting in incorrect handle covers being mounted, causing the problem of duplication of work. However, in the embodiments of this invention, after making the respective changes to the handle, a kind of handle sheath (handle sheath with slot) can be uniformly used, thereby greatly simplifying the assembling process. With the exception of other clear explanations, the handle sleeves mentioned above are handle sleeves with slot, that is to say, handle sleeves with a relatively long extension length (LI) of the interior, the aforementioned internal spaces also refer correspondingly to interiors of Handle covers with relatively long interior spaces LI (or called slot).

As shown in FIG. 4, concretely to this protrusion 142 on the handle 10, in an embodiment of this invention, the extension length 1 of the protrusion 142 in the axial direction of said body is shorter than the extension length LI of said inner space 81 in the extension direction of said handle shell 80a , and the height of the protrusion 142 is not larger than the diameter D of the inner space 81.

After the handle 10 has been fitted in the handle cover 80a, because of the presence of the protrusion 142 and because its extension length 1 in the axial direction is shorter than the extension length LI of the inner space 81 in the extension direction of the handle cover 80a, the inner space 81 becomes practical In addition, the elevation 142 has a certain height d, but this height d can again not be greater than the diameter D of the interior 81, which is why it is also ensured that only matching accessories can protrude into the interior.

As shown in Drawing 6, this invention further provides a circuit breaker 60 equipped with a handle 10 described above, and a plurality of power switches 60 described above are combined with each other to form a multi-stage circuit breaker 90 provided by an embodiment of this invention.

Also included in such a multi-stage power switch 90 is a handle shell 80a, the handle shell 80a can be placed on the handle 10 of each power switch 60 and interconnect the individual power switches 60, and the two end portions of the handle shell 80a each have an interior space 81 which extends in the direction of expansion the handle cover 80a extends, after placing the handle cover 80a through the gap 83 on the handle 10, the elevation 142 at least partially penetrate into the interior 81.

Accordingly, when the circuit breaker 60 or the multi-stage circuit breaker 90 uses such a handle 10, an adjustment can be made only using a handle cover 80a with a slot 81 and a handle 10. If a handle cover 80b with a short hole 82 is still used not possible to fit the handle 10 in the handle cover 80b, therefore, the installation staff can relatively easily distinguish which type of handle cover to be used, which greatly simplifies the assembly process.

As further illustrated in Figure 5, this invention further provides an accessory circuit breaker 100 comprising an electrical accessory 70, the electrical accessory 70 has an accessory handle 71, and the accessory handle 71 has a protruding end 72, protruding in the extension direction of the accessory handle 71, as shown in Drawing 4, the protruding end 72 of the accessory handle 71 may extend at least partially (preferably entirely) into the interior 81 of one end of the handle cover 80a and will be protruded from the protrusion 142 blocked.

For the original design, two types of handle sheaths are required to realize the function of differentiated assembly of different types of accessories. In contrast, with the use of a kind of handle cover, since the handle has been correspondingly changed, the differentiated mounting of accessories of various kinds can also be realized in this embodiment example, due to reduced costs for molding tools and material to a large extent Costs saved for production, production and maintenance.

Concretely, when the accessory 70 suitably used for the circuit breaker 60 is provided with a relatively short protruding end 72, the assembler may select a switchgear (particularly, a circuit breaker 60) with a handle 10 provided by an embodiment of this invention, and a handle sheath 80a with slot 81 that fits, the accessory 70 can then be fitted directly to the handle shell 80a.

If the accessory suitable for the circuit breaker is equipped with a relatively short protruding end, the installer can select a switchgear (especially a circuit breaker) with a traditional handle and, as before, select a handgrip with a slot that fits, the accessory can then go directly adapted to the handle cover.

In this text, "schematic" for "serving as an exemplary embodiment, example or description", in this text as "schematic" described drawings and embodiments should not be interpreted as a more preferred or advantageous technical solution.

The range of detailed descriptions set forth in the foregoing text are merely specific descriptions of possible embodiments directed to this invention, and are in no way intended to limit the scope of this invention, all equivalent embodiments, or modifications made without departing from the inventive skill of this invention are intended to be included within the scope of this invention.

Claims

claims

A handle, said handle (10) having a body (12) which can be axially provided on a switchgear, and an actuating part (14) provided on said body (12) projecting, characterized in that said actuating part (14) extends along the axial direction of said body (12) and a projection (142) is projectingly provided on said actuating part (14).

2. Handle according to claim 1, characterized in that the said handle (10) in a handle shell (80 a) can be provided jacketed, the two end portions of said handle shell (80 a) each having an interior space (81) extending in the extension direction of said handle cover (80a) extends, after placing said handle cover (80a) on said handle (10) said elevation (142) at least partially penetrate into said inner space (81).

A handle according to claim 2, characterized in that the extension length of said protrusion (142) in the axial direction of said body (12) is shorter (1) than the extension length (LI) of said inner space (81) in the extension direction of said handle cover (80a ).

4. Handle according to claim 2, characterized in that the height (d) of said elevation (142) is not greater than the diameter (D) of said inner space (81).

5. Circuit breaker (60), characterized in that it comprises a handle (10) according to any one of claims 1 to 4.

A multi-stage circuit breaker (90), characterized by comprising a plurality of power switches (60) according to claim 5,

a handgrip cover (80a) further comprising said handle cover (80a) mounted on the handle (10) of each said circuit breaker (60) and capable of interconnecting the individual circuit breakers (60);

the two end parts of said handle cover (80a) each having an inner space (81) extending in the direction of extension of said handle cover (80a), after placing said handle cover (80a) on said handle (10) said elevation (142 ) at least partially into the said interior space (81) can penetrate.

An accessory circuit breaker (100) comprising an electrical accessory (70), said electrical accessory (70) having an accessory handle (71), said accessory handle (71) having a protruding end (72) extending in the direction of extension of said accessory handle (71), characterized in that it further comprises a multi-stage circuit breaker (90) according to claim 6, the projecting end (72) of said accessory handle (71) at least partially into the Interior (81) of one end of said handle shell (80a) protrudes.

The circuit breaker with accessory (100) according to claim 7, characterized in that the protruding end (72) of said accessory handle (71) as a whole extends into the interior (81) of one end of said handle cover (80a).