Molded case type disconnecting switch fuse group

Abstract

The utility model discloses a plastic shell type disconnecting switch fuse group which comprises a base, a disconnecting switch is fixed on the base, at least one fuse is movably installed on the base, the fuse is located on the outer side of the disconnecting switch, and the fuse is electrically connected with the disconnecting switch through a copper bar. A fuse indicator is fixed on the upper side surface or the outer side surface of the fuse; the base is of an integrally formed structure, the base is divided into a first base and a second base, and the length of the first base is consistent with that of the second base; the isolating switch is fixed on the first base, a clamping groove is formed in the second base, the fuse is fixed in the clamping groove, two fixing seats protruding upwards are formed on the second base, and the clamping groove is located between the two fixing seats. The utility model has the advantage of saving cost.

Description

Technical Field

[0001] The utility model relates to an energy storage system, in particular to a molded case isolating switch fuse group. Background Art

[0002] In order to provide circuit breaker protection and overcurrent protection for power transmission and distribution circuits, it is usually necessary to connect fuses in series in the distribution circuit as protection devices, and to install isolating switches and control the circuits through infrequent manual operations. In circuits with low current, fuses and isolating switches are usually combined to protect and control the circuits. This combination is called an isolating switch fuse or a fuse-type isolating switch.

[0003] Currently, molded case circuit breakers and fuses are used for protection between high-voltage boxes or battery clusters and PCSs, which are connected by cables or copper busbars. The molded case circuit breakers and fuses exist separately and are not combined. This structure requires a large number of copper busbars for connection, which makes it more expensive. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a molded case disconnect switch fuse group. The application scenarios of the disconnect switch fuse group are a centralized high-voltage box for stepping down and a distributed battery cluster and a PCS for stepping down. The disconnect switch fuse group integrates the disconnect switch and the fuse on the same base, thereby saving space and connecting copper bars, thereby reducing costs.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] A molded case isolating switch fuse set, comprising:

[0007] A base, on which an isolating switch is fixed, and on which at least one fuse is movably mounted, wherein the fuse is located outside the isolating switch, and the fuse is electrically connected to the isolating switch via a copper busbar; and a fuse indicator is fixed on the upper side or outer side of the fuse.

[0008] In one or more embodiments of the utility model, the base is an integrally formed structure, and the base is divided into a first base and a second base, and the lengths of the first base and the second base are consistent; the isolating switch is fixed on the first base, and a slot is formed on the second base, and the fuse is fixed in the slot, and two upwardly protruding fixing seats are formed on the second base, and the slot is located between the two fixing seats.

[0009] In one or more embodiments of the utility model, the contacts on both sides of the fuse are located on the outer side of the fixing seat, one side of the copper busbar is located between one of the contacts and the fixing seat and is fixed by a first screw, and the other side of the copper busbar is fixedly connected to the electrode end of the isolating switch by a second screw.

[0010] In one or more embodiments of the utility model, the contacts on both sides of the fuse are located on the upper side of the fixing seat, one side of the copper busbar is located between one of the contacts and the fixing seat and is fixed by a first screw, and the other side of the copper busbar is fixedly connected to the electrode end of the isolating switch by a second screw.

[0011] In one or more embodiments of the utility model, the base is an integrally formed structure, and the base is divided into a first base and a second base, and the length of the first base is smaller than the length of the second base; the isolating switch is fixed on the first base, the fuse is fixed on the second base, and the contacts on both sides of the fuse are fixed to the second base by a third screw; one side of the copper busbar is attached to the upper side of one of the contacts and is fixed by a third screw, and the other side of the copper busbar is fixedly connected to the electrode end of the isolating switch by a fourth screw.

[0012] In one or more embodiments of the present invention, the upper side or outer side of the fuse has a protruding fixing block, and the fuse indicator card is arranged on the fixing block and fixed by a fifth screw.

[0013] Beneficial effects of the utility model:

[0014] The utility model proposes a molded case isolating switch fuse group which integrates the isolating switch and the fuse on the same base, thereby saving space and connecting copper bars, reducing costs and improving the installation efficiency of energy storage users. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a structural schematic diagram of embodiment 1;

[0016] Figure 2 is a top view of the first embodiment;

[0017] Figure 3 is a structural diagram of Embodiment 2;

[0018] Figure 4 is a top view of the second embodiment;

[0019] Figure 5 is a schematic diagram of the structure of Embodiment 3;

[0020] Figure 6 is a top view of the third embodiment;

[0021] Figure 7 is a schematic structural diagram of Embodiment 4;

[0022] Figure 8 It is a top view of the fourth embodiment. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. The components of the embodiment of the utility model generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiment of the utility model provided in the drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents the selected embodiment of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0024] Embodiment 1

[0025] In this embodiment, Figure 1 to Figure 2 As shown, a molded case disconnector fuse group includes a base 1, on which a disconnector 2 is fixed, and on which at least one fuse 3 is movably mounted, and the fuse 3 is located outside the disconnector 2, and the fuse 3 and the disconnector 2 are electrically connected through a copper bus 4; a fuse indicator 5 is fixed on the outer side of the fuse 3. The outer side of the fuse 3 has a protruding fixing block 32, and the fuse indicator 5 is clamped on the fixing block and fixed by a fifth screw 10. When the fuse indicator 5 is located on the outer side of the fuse 3, the direction of the fuse indicator 5 is perpendicular to the operating surface of the disconnector 2.

[0026] In this embodiment, the fuse 3 can be configured on the incoming side or the outgoing side of the disconnector 2, or on both the incoming side and the outgoing side; by integrating the disconnector 2 and the fuse 3 on the same base, space is saved and connecting copper bars are saved, costs are reduced, and the installation efficiency of energy storage users is improved.

[0027] The base 1 is an integrally formed structure, and is divided into a first base and a second base, and the lengths of the first base and the second base are consistent; the isolating switch 2 is fixed on the first base, and a slot is formed on the second base, and the fuse 3 is fixed in the slot, and two upwardly protruding fixing seats 11 are formed on the second base, and the slot is located between the two fixing seats 11.

[0028] The contacts 31 on both sides of the fuse 3 are located on the outer side of the fixing seat 11, one side of the copper busbar 4 is located between one of the contacts 31 and the fixing seat 11, and is fixed by a first screw 6, and the other side of the copper busbar 4 is fixedly connected to the electrode end of the isolating switch 2 by a second screw 7.

[0029] The copper bar 4 passes through the fixing seat 11 , one end of the copper bar is bent upward by 90 degrees, the inner side of the bent end is in contact with the outer side of the fixing seat 11 , and the other end of the copper bar is fixed to the incoming line side or the outgoing line side of the disconnector 2 .

[0030] Embodiment 2

[0031] like Figure 3 to Figure 4 As shown, the difference between this embodiment and the first embodiment is that: the contact pieces 31 on both sides of the fuse 3 are located on the upper side of the fixing seat 11, one side of the copper bar 4 is located between one of the contact pieces 31 and the fixing seat 11, and is fixed by a first screw 6, and the other side of the copper bar 4 is fixedly connected to the electrode end of the disconnector 2 by a second screw 7. A fuse indicator 5 is fixed to the upper side of the fuse 3. The upper side of the fuse 3 has a raised fixing block 32, and the fuse indicator 5 is clamped on the fixing block and fixed by a fifth screw 10. When the fuse indicator 5 is located on the upper side of the fuse 3, the direction of the fuse indicator 5 is the same as the direction of the operating surface of the disconnector 2.

[0032] In this embodiment, the height of the second base is higher than the height of the fixed points on the incoming and outgoing sides of the disconnector 2. Due to the height difference, the middle part of the copper busbar 4 is bent twice to form a connecting inclined plate. There are flat plates on both sides of the connecting inclined plate, and the flat plates are respectively fixed to the fixing seat 11 and the incoming or outgoing side of the disconnector 2.

[0033] Embodiment 3

[0034] like Figures 5 and 6 As shown, the base 1 is an integrally formed structure, and the base 1 is divided into a first base and a second base. The difference between this embodiment and the first embodiment is that: the length of the first base is less than the length of the second base; the disconnector 2 is fixed on the first base, the fuse 3 is fixed on the second base, and the contacts 31 on both sides of the fuse 3 are fixed to the second base by the third screw 8; one side of the copper bar 4 is attached to the upper side of one of the contacts 31 and fixed by the third screw 8, and the other side of the copper bar 4 is fixedly connected to the electrode end of the disconnector 2 by the fourth screw 9. A fuse indicator 5 is fixed to the outer side of the fuse 3. The outer side of the fuse 3 has a protruding fixing block 32, and the fuse indicator 5 is clamped on the fixing block and fixed by the fifth screw 10.

[0035] Embodiment 4

[0036] like Figures 7 and 8 As shown, the base 1 is an integrally formed structure, and the base 1 is divided into a first base and a second base, and the length of the first base is less than that of the second base; the isolating switch 2 is fixed on the first base, the fuse 3 is fixed on the second base, and the contacts 31 on both sides of the fuse 3 are fixed to the second base by a third screw 8; one side of the copper bar 4 is attached to the upper side of one of the contacts 31 and fixed by a third screw 8, and the other side of the copper bar 4 is fixedly connected to the electrode end of the isolating switch 2 by a fourth screw 9. The difference between this embodiment and the third embodiment is that a fuse indicator 5 is fixed on the upper side of the fuse 3. The upper side of the fuse 3 has a raised fixing block 32, and the fuse indicator 5 is clamped on the fixing block and fixed by a fifth screw 10.

[0037] In the above-mentioned Embodiment 3 and Embodiment 4, the height of the second base is higher than the height of the fixed points on the incoming and outgoing sides of the disconnector 2, and the length of the first base is smaller than the length of the second base, so that the copper busbar 4 forms a "7"-shaped structure as a whole, and a bevel connecting plate is also formed in the middle thereof.

[0038] In the first embodiment, the second embodiment, the third embodiment and the fourth embodiment, the width of the fuse 3 is greater than the width of the second base, and a portion of the fuse 3 extends to the outside of the base 1 .

[0039] In the description of the present utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "left", "right" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use, or the orientation or positional relationship commonly understood by those skilled in the art, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the equipment or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model. In addition, the terms "first", "second" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the present utility model, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "connection" and the like should be understood in a broad sense, for example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

Claims

1. A molded case isolating switch fuse set, characterized in that: include: A base (1), an isolating switch (2) is fixed on the base (1), at least one fuse (3) is also movably mounted on the base (1), the fuse (3) is located outside the isolating switch (2), the fuse (3) and the isolating switch (2) are electrically connected via a copper busbar (4); a fuse indicator (5) is fixed on the upper side or outer side of the fuse (3).

2. A molded case isolating switch fuse set according to claim 1, characterized in that: The base (1) is an integrally formed structure, and the base (1) is divided into a first base and a second base, and the first base and the second base are of the same length; the isolating switch (2) is fixed on the first base, and a slot is formed on the second base, and the fuse (3) is fixed in the slot; two upwardly protruding fixing seats (11) are formed on the second base, and the slot is located between the two fixing seats (11).

3. A molded case isolating switch fuse set according to claim 2, characterized in that: The contact pieces (31) on both sides of the fuse (3) are located on the outer side of the fixing seat (11), one side of the copper busbar (4) is located between one of the contact pieces (31) and the fixing seat (11), and is fixed by a first screw (6), and the other side of the copper busbar (4) is fixedly connected to the electrode end of the isolating switch (2) by a second screw (7).

4. A molded case isolating switch fuse set according to claim 2, characterized in that: The contact pieces (31) on both sides of the fuse (3) are located on the upper side of the fixing seat (11), one side of the copper bar (4) is located between one of the contact pieces (31) and the fixing seat (11), and is fixed by a first screw (6), and the other side of the copper bar (4) is fixedly connected to the electrode end of the isolating switch (2) by a second screw (7).

5. The molded case disconnect switch fuse set according to claim 1, characterized in that: The base (1) is an integrally formed structure, and the base (1) is divided into a first base and a second base, and the length of the first base is smaller than that of the second base; the isolating switch (2) is fixed on the first base, the fuse (3) is fixed on the second base, and the contact pieces (31) on both sides of the fuse (3) are fixed to the second base by means of third screws (8); one side of the copper busbar (4) is attached to the upper side of one of the contact pieces (31) and is fixed by means of the third screw (8), and the other side of the copper busbar (4) is fixedly connected to the electrode end of the isolating switch (2) by means of a fourth screw (9).

6. A molded case disconnect switch fuse set according to claim 1, characterized in that: The upper side or outer side of the fuse (3) has a protruding fixing block (32), and the fuse indicator (5) is clamped on the fixing block and fixed by a fifth screw (10).

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