CN204792647U - Take two power automatic transfer switch of fuse - Google Patents
Take two power automatic transfer switch of fuse Download PDFInfo
- Publication number
- CN204792647U CN204792647U CN201520624048.XU CN201520624048U CN204792647U CN 204792647 U CN204792647 U CN 204792647U CN 201520624048 U CN201520624048 U CN 201520624048U CN 204792647 U CN204792647 U CN 204792647U
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- Prior art keywords
- fuse
- contact knife
- conducting strip
- automatic transfer
- transfer switch
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Abstract
The utility model discloses a take two power automatic transfer switch of fuse, including the switch body the current output terminal of switch body is equipped with the fuse that is used for overcurrent protection, the both ends of fuse are equipped with touches the sword for be connected with the blade holder cooperation of touching that corresponds the position on the switch body, touch blade holder upper end have be suitable for with touch sword grafting complex socket, the shaping is bent at socket both sides border has the conducting strip, the conducting strip medial surface for be suitable for with touch the conducting surface that the sword corresponds the side contact, touch still to be equipped with to be suitable for on the blade holder and do the conducting strip provides the elastic component of clamp force. The utility model discloses in, setting up the fuse through the current output terminal at the switch body, when having the heavy current to pass through in the circuit, the fuse -element of fuse can be fused to protection oading equipment has fine result of use in the in -service use.
Description
Technical field
The utility model relates to a kind of double power supply automatic transfer switch with fuse, belongs to dual-power transfer switch field of structural design.
Background technology
Double power supply automatic transfer switch to be used in electric power system, when main electricity breaks down, trouble power can being avoided to power to the load, reliably selecting again qualified power supply to drop into normal work, to ensure that power supply is uninterrupted.Generally be used in the place of outbalance, such as hospital, airport, harbour, all rely on double power supply automatic transfer switch to power to provide continuous print.The ubiquitous problem of double power supply automatic transfer switch on existing market does not possess excess current protective function, and the super-high-current existed in circuit may cause load equipment to damage.
Utility model content
To this, the utility model aims to provide a kind of double power supply automatic transfer switch with overcurrent protection.
The technical scheme realizing the utility model object is:
With a double power supply automatic transfer switch for fuse, comprise Switch main body, it is characterized in that, at the current output terminal of described Switch main body, the fuse for overcurrent protection is housed.
In technique scheme, the two ends of described fuse are provided with contact knife, in order to be connected with the contact knife seat of correspondence position on Switch main body;
Described contact knife seat upper end has the socket being suitable for coordinating with described contact knife grafting, described socket dual-side has conducting strip along bending and molding, described conducting strip medial surface is the conducting surface being suitable for contacting with described contact knife corresponding side surface, described contact knife seat is also provided with and is suitable for the elastic component that described conducting strip provides clamping force.
In technique scheme, described elastic component is the ring spring with opening, and the two ends of described ring spring are against in the spacing hole outside two conducting strips that are oppositely arranged respectively.
The utility model has positive effect:
(1), in the utility model, fuse is set by the current output terminal at Switch main body, when have in circuit big current by time, the melt of fuse can be fused, thus protection load equipment, there is good result of use in actual use.
(2) in the utility model, described fuse two ends have contact knife, corresponding Switch main body is provided with contact knife seat, described contact knife seat upper end has the socket being suitable for coordinating with described contact knife grafting, described socket dual-side has conducting strip along bending and molding, described conducting strip medial surface is the conducting surface being suitable for contacting with described contact knife corresponding side surface, described contact knife seat is also provided with and is suitable for the elastic component that described conducting strip provides clamping force; By the contact-making surface adopting this structure to increase effectively contact knife seat and contact knife, can temperature rise herein be reduced, thus reduce electric energy loss, also can ensure the reliability be electrically connected simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of double power supply automatic transfer switch in the utility model;
Fig. 2 is the structural representation of the seat of contact knife described in the utility model;
Fig. 3 is for from structural representation during contact knife seat shown in another angle views Fig. 2.
Reference numeral shown in figure is: 1-Switch main body; 2-fuse; 21-contact knife; 3-contact knife seat; 31-conducting strip; 32-conducting surface; 4-elastic component.
Embodiment
Do to illustrate below in conjunction with the concrete structure of Figure of description to the double power supply automatic transfer switch with fuse in the utility model:
A kind of double power supply automatic transfer switch, as shown in Figure 1, it comprises Switch main body 1, at the current output terminal of described Switch main body 1, the fuse 2 for overcurrent protection is housed.In the present embodiment, fuse is set by the current output terminal at Switch main body, when have in circuit big current by time, the melt of fuse can be fused, thus protection load equipment, there is good result of use in actual use.
The two ends of described fuse 2 are provided with contact knife 21, and in order to be connected with the contact knife seat 3 of correspondence position on Switch main body 1, described contact knife seat 3 upper end has the socket being suitable for coordinating with the grafting of described contact knife 21, arrange like this and fuse can be facilitated to install; Further, referring to Fig. 2 and Fig. 3, described socket dual-side has conducting strip 31 along bending and molding, described conducting strip 31 medial surface is the conducting surface 32 being suitable for contacting with described contact knife 21 corresponding side surface, described contact knife seat 3 is also provided with and is suitable for described conducting strip 31 clamping force is provided, to guarantee the elastic component 4 of contact knife 21 and contact knife seat 3 reliable contacts; Described elastic component 4 in the present embodiment is for having the ring spring of opening, the two ends of described ring spring are against in the spacing hole outside two conducting strips 31 that are oppositely arranged respectively, described ring spring can be the circle shape spring with opening, also can be the square ring-spring with opening, certainly, other spring structure of prior art can also be adopted.By adopting said structure, increasing the contact-making surface of contact knife seat and contact knife, temperature rise herein can be reduced, thus reduce electric energy loss, also can ensure the reliability be electrically connected simultaneously.
Further, the reliability be electrically connected with contact knife seat in order to ensure fuse contact knife and reduce electric energy loss, in practical operation, on described conducting strip 31 inside punch forming have be suitable for upwards propping up described contact knife 21 with described contact knife 21 is rested on have with the position in described conducting surface 32 Maximum Contact face keep out boss (attached not shown), namely boss is kept out by setting, when filling fuse, first contact knife 21 is pressed in socket, until contact knife 21 and this keep out boss offset time, show that fuse is in place, and at this moment, conducting surface 32 (conducting strip 31) and contact knife have maximum contact-making surface, such setting is more conducive to fuse 2 Fast Installation.
Obviously, above-described embodiment of the present utility model is only for the utility model example is clearly described, and is not the restriction to execution mode of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all execution modes.And these belong to connotation of the present utility model the apparent change of extending out or variation still belong to protection range of the present utility model.
Claims (3)
1. the double power supply automatic transfer switch with fuse, comprises Switch main body (1), it is characterized in that, at the current output terminal of described Switch main body (1), the fuse (2) for overcurrent protection is housed.
2. the double power supply automatic transfer switch of band fuse according to claim 1, it is characterized in that, the two ends of described fuse (2) are provided with contact knife (21), in order to be connected with the contact knife seat (3) of the upper correspondence position of Switch main body (1);
Described contact knife seat (3) upper end has the socket being suitable for coordinating with described contact knife (21) grafting, described socket dual-side has conducting strip (31) along bending and molding, described conducting strip (31) medial surface, for being suitable for the conducting surface (32) contacted with described contact knife (21) corresponding side surface, described contact knife seat (3) being also provided with and being suitable for the elastic component (4) that described conducting strip (31) provides clamping force.
3. the double power supply automatic transfer switch of band fuse according to claim 2, it is characterized in that, described elastic component (4) is for having the ring spring of opening, and the two ends of described ring spring are against in the spacing hole in two conducting strips (31) outside be oppositely arranged respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520624048.XU CN204792647U (en) | 2015-08-18 | 2015-08-18 | Take two power automatic transfer switch of fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520624048.XU CN204792647U (en) | 2015-08-18 | 2015-08-18 | Take two power automatic transfer switch of fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204792647U true CN204792647U (en) | 2015-11-18 |
Family
ID=54532646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520624048.XU Active CN204792647U (en) | 2015-08-18 | 2015-08-18 | Take two power automatic transfer switch of fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204792647U (en) |
-
2015
- 2015-08-18 CN CN201520624048.XU patent/CN204792647U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |