Isolation structure of switching device and fusing type isolation switch

Abstract

The utility model discloses an isolation structure of a switching device and a fusing type isolation switch. The problems that an existing switching device is insufficient in creepage distance and prone to breakdown, and safety accidents are caused are mainly solved. The wiring structure is characterized in that the wiring structure further comprises a partition plate (4), the partition plate is arranged between at least one group of adjacent wiring grooves, and a shielding part (41) is arranged on the partition plate and is used for at least partially covering the mounting hole. According to the isolation structure of the switching device, the creepage distance is increased, and the use is safer.

Description

Technical Field

[0001] The utility model relates to the field of switching electrical appliances, in particular to an isolation structure of a switching electrical appliance and a fusing disconnecting switch. Background Art

[0002] Switching electrical appliances, especially disconnecting switches, are used in a power distribution circuit system for line short-circuit protection and power source isolation. When installing and fixing small-current products, the electrical clearance between the standard parts for fixing, the current-carrying conductors, and the mounting brackets is small. In the prior art (as shown in Figure 6 ), when the disconnecting switch operates at high voltage, there is a risk of insufficient electrical clearance and creepage distance, breakdown between the switch and the ground or between phases, which may lead to safety accidents. Summary of the Utility Model

[0003] In order to overcome the deficiencies of the background art, the utility model provides an isolation structure for a switching electrical appliance, mainly solving the problems of insufficient creepage distance in existing switching electrical appliances, being easily broken down, and causing safety accidents.

[0004] The technical solution of the utility model is as follows.

[0005] The isolation structure of the switching electrical appliance includes a housing, on which a wiring groove and a mounting hole are provided, and further includes

[0006] a partition board, which is arranged between at least one group of adjacent wiring grooves, and a shielding part is provided on the partition board, and the shielding part is used to at least partially cover the mounting hole.

[0007] A mounting seat is provided on the housing, and the mounting hole is arranged in the mounting seat.

[0008] A first slot is provided on the housing, the partition board includes a main board, and one side edge of the main board is in plug-in fit with the first slot.

[0009] A second slot is provided on the outer wall of the mounting seat, the partition board includes a secondary board, and one side edge of the secondary board is in plug-in fit with the second slot.

[0010] The shielding part is a baffle provided at the bottom of the main board, and the baffle is arranged in the mounting hole.

[0011] It further includes a base, and the base is detachably connected to the housing.

[0012] The base includes side plates, on which a boss extending outward is provided, and a heat dissipation groove with a hollow structure is provided on the boss, and the heat dissipation groove is used to be arranged opposite to the through groove on the housing.

[0013] Two retaining walls are provided on the base, and an installation groove for installing the housing is formed between the two retaining walls.

[0014] The base further includes a partition board, which is arranged outside the retaining wall and opposite to the wiring groove.

[0015] A fuse disconnect switch, characterized in that it includes the isolation structure of the switch device as described above.

[0016] The beneficial effect of the present utility model is that the present utility model provides an isolation structure for a switch device, which increases the creepage distance and is safer to use. Description of the Drawings

[0017] Figure 1 It is an exploded schematic view of an embodiment of the present utility model.

[0018] Figure 2 It is a partial three-dimensional schematic view of an embodiment of the present utility model.

[0019] Figure 3 It is a three-dimensional schematic view of the base of an embodiment of the present utility model.

[0020] Figure 4 It is a three-dimensional schematic view of the partition board of an embodiment of the present utility model.

[0021] Figure 5 It is a three-dimensional schematic view of an embodiment of the present utility model installed on a fuse disconnect switch.

[0022] Figure 6 It is a three-dimensional schematic view of the prior art. Detailed Embodiments

[0023] The following further describes the present utility model with reference to the drawings: As shown in the figure, the isolation structure of the switch device includes a housing 1, on which there are a wiring groove 2 and a mounting hole 3, and further includes a partition board 4, which is arranged between at least one group of adjacent wiring grooves, and there is a shielding part 41 on the partition board, and the shielding part is used to at least partially cover the mounting hole. Screws are installed in the mounting hole. After the partition board is installed on the housing, it will separate the wiring grooves and increase the creepage distance. Preferably, a partition board is arranged between every two wiring grooves, and the bottom of the partition board covers the mounting hole, further strengthening the isolation effect. The shielding part can be a part of the partition board and is a structure similar to a cover plate.

[0024] In this embodiment, as shown in the figure, there is a mounting seat 11 on the housing, and the mounting hole is arranged in the mounting seat. The mounting seat itself can also play an isolation role and cooperate with the shielding part to form a relatively enclosed cavity.

[0025] In this embodiment, as shown in the figure, a first slot 12 is provided on the housing. The partition includes a main board 411, and one side edge of the main board is inserted and matched with the first slot. The first slot can be an arc-shaped slot, and it can rotate after the partition is inserted, which is relatively flexible.

[0026] In this embodiment, as shown in the figure, a second slot 121 is provided on the outer wall of the mounting base. The partition includes a sub-board 412, and one side edge of the sub-board is inserted and matched with the second slot. The second slot can be a rectangular slot, which is used for positioning after being completely inserted, and the installation is relatively stable.

[0027] In this embodiment, as shown in the figure, the shielding part is a baffle provided at the bottom of the main board, and the baffle is arranged in the mounting hole. The outer wall of the baffle can be in contact with the inner wall of the mounting hole or have a clearance fit to achieve the shielding effect.

[0028] In this embodiment, as shown in the figure, a base 5 is further included, and the base is detachably connected to the housing. Adding the base further enhances the isolation effect.

[0029] In this embodiment, as shown in the figure, the base includes side plates 51, an outwardly extending boss 52 is provided on the side plates, and a hollowed-out heat dissipation groove 521 is provided on the boss. The heat dissipation groove is arranged opposite to the through groove 13 on the housing. When installed side by side, the boss can ensure electrical isolation between two switches.

[0030] In this embodiment, as shown in the figure, two retaining walls 53 are provided on the base, and an installation groove 531 for installing the housing is formed between the two retaining walls. The housing is arranged in the installation groove and can be fixed with fasteners.

[0031] In this embodiment, as shown in the figure, the base further includes a partition board 54, and the partition board is arranged outside the retaining wall and opposite to the wiring groove. The partition board increases the bottom protection and further enhances the isolation effect.

[0032] In this embodiment, as shown in the figure, a fuse-type disconnecting switch includes the isolation structure of the switch appliance as described above.

[0033] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0034] In addition, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more, unless otherwise specifically defined.

[0035] The embodiments described with reference to the accompanying drawings are exemplary and are intended to explain the present utility model and should not be construed as limiting the present utility model. The embodiments should not be regarded as limiting the present utility model, but any improvements made based on the spirit of the present utility model should be within the protection scope of the present utility model.

Claims

1. Isolation structure of a switching electrical appliance, comprising a housing (1), wherein a wiring groove (2) and a mounting hole (3) are provided on the housing, and it is characterized in that: Further comprising a partition plate (4), the partition plate is arranged between at least one group of adjacent wiring grooves, and a shielding portion (41) is provided on the partition plate, and the shielding portion is used to at least partially cover the mounting hole.

2. The isolation structure of the switching electrical apparatus according to claim 1, wherein: A mounting seat (11) is provided on the housing, and the mounting hole is arranged in the mounting seat.

3. The isolation structure of the switching device according to claim 1, characterized in that: A first slot (12) is provided on the housing, the partition plate includes a main board (411), and one side edge of the main board is in plug-in fit with the first slot.

4. The isolation structure of the switching device according to claim 2, characterized in that: A second slot (121) is provided on the outer wall of the mounting seat, the partition plate includes a secondary board (412), and one side edge of the secondary board is in plug-in fit with the second slot.

5. The isolation structure of the switching electrical appliance according to claim 3, characterized in that: The shielding portion is a baffle provided at the bottom of the main board, and the baffle is arranged in the mounting hole.

6. The isolation structure of the switching electrical apparatus according to claim 1, characterized in that: Further comprising a base (5), the base is detachably connected to the housing.

7. The isolation structure of the switching device according to claim 6, characterized in that: The base includes side plates (51), a boss (52) extending outward is provided on the side plates, and a heat dissipation groove (521) provided with a hollow is provided on the boss, and the heat dissipation groove is used to be arranged opposite to the through groove (13) on the housing.

8. The isolation structure of the switching device according to claim 6 or 7, characterized in that: Two retaining walls (53) are provided on the base, and a mounting groove (531) for housing installation is formed between the two retaining walls.

9. The isolation structure of the switching electrical apparatus according to claim 8, wherein: The base further includes a partition board (54), the partition board is arranged outside the retaining wall and opposite to the wiring groove.

10. A fusing type disconnecting switch, characterized in that, An isolation structure of a switching electrical appliance as described in any one of claims 1-9 is included.

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