CN114664610A

CN114664610A - DC load switch

Info

Publication number: CN114664610A
Application number: CN202210309931.4A
Authority: CN
Inventors: 王�忠; 韩云; 戴罡; 杜吟; 葛飞; 刘丰丰; 侯魁; 李涛
Original assignee: Jiangsu Daquan Kaifan Switch Co ltd
Current assignee: Jiangsu Daquan Kaifan Switch Co ltd
Priority date: 2022-03-28
Filing date: 2022-03-28
Publication date: 2022-06-24

Abstract

A direct current load switch relates to the switch field, comprising: the secondary terminal is positioned above the operating mechanism, the operating mechanism is positioned below the operating mechanism, and the arc extinguish chamber is positioned between the secondary terminal and the operating mechanism; the energy storage device comprises an operating mechanism, an auxiliary switch assembly, a coil module, an energy storage motor and a control module, wherein the auxiliary switch assembly and the coil module are arranged on one side of the operating mechanism, the auxiliary switch assembly is positioned above the coil module, and the energy storage motor is arranged on the other side of the operating mechanism; the direct current load switch adopts a two-pole type on the whole structure and is arranged in a bilateral symmetry mode. The direct current load switch is compact in structure and low in cost.

Description

DC load switch

Technical Field

The invention relates to the field of switches, in particular to a direct-current load switch.

Background

The direct current load switch required in the current new energy market is small in size and high in cost control requirement. The dc load switch generally includes a base, an operating mechanism, an arc chute, and moving and stationary contact assemblies. In the conventional structure, the direct current load switch is derived from a circuit breaker (tripolar or quadrapole) product, a controller assembly is omitted, the volume of the product is unchanged, and a large amount of space is wasted. In addition, in the conventional structure, the direct current load switch adopts a three-pole series connection or four-pole series connection voltage division connection mode, so that the product cost is high.

Disclosure of Invention

The present invention is directed to a dc load switch to solve the above problems.

The embodiment of the invention is realized by the following steps:

in one aspect of the embodiments of the present invention, a dc load switch is provided, including: the secondary terminal is positioned above the operating mechanism, the operating mechanism is positioned below the operating mechanism, and the arc extinguish chamber is positioned between the secondary terminal and the operating mechanism; an auxiliary switch assembly and a coil module are arranged on one side of the operating mechanism, the auxiliary switch assembly is positioned above the coil module, and an energy storage motor is arranged on the other side of the operating mechanism; the direct current load switch adopts a two-pole type on the whole structure and is arranged in a bilateral symmetry mode.

Optionally, the arc chute is funnel-shaped.

Optionally, the arc extinguish chamber is fixed between the front base and the rear base of the dc load switch.

Optionally, the arc extinguish chamber is fixed in a nested manner, and a nested design is adopted between the front base and the rear base.

Optionally, the auxiliary switch assembly is fixed to the front base and located on the left side of the operating mechanism, the auxiliary switch rotating plate is linked with the mechanism cantilever, and when the mechanism is opened and closed, state switching of the auxiliary switch is achieved.

Optionally, the auxiliary switch bracket limits the rotation plate to limit the rotation angle of the rotation plate.

Optionally, the coil module is fixed to the front base and located on the left side of the operating mechanism; the coil module comprises an under-voltage coil, a shunt coil and a bent plate; when the coil acts, the coil drives the bent plate to move downwards, and the bent plate enables the mechanism opening half shaft to rotate, so that the mechanism opening is realized.

Optionally, the front base and the rear base are both provided with a T-shaped groove and a built-in fixing plate, and the fixing plate is provided with symmetrical threaded holes for fixing the arc extinguish chamber.

Optionally, the front base is provided with a groove, and a square nut is arranged in the groove and used for fixing the operating mechanism.

Optionally, in the height direction, both sides of the front base and the rear base are lower than the middle, and both sides of the front base and the rear base are provided with mounting holes.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a front view of an embodiment of a DC load switch of the present invention;

FIG. 2 is a rear view of an embodiment of the DC load switch of the present invention;

FIG. 3 is a cross-sectional view of one embodiment of the DC load switch of the present invention;

FIG. 4 is a perspective view of an embodiment of the DC load switch of the present invention;

FIG. 5 is a first schematic diagram illustrating an auxiliary switch of the DC load switch according to an embodiment of the present invention;

FIG. 6 is a second angle diagram of an auxiliary switch of the DC load switch according to an embodiment of the present invention;

FIG. 7 is a partial schematic diagram of an auxiliary switch of the DC load switch according to an embodiment of the present invention;

FIG. 8 is a schematic structural diagram of a coil module of the DC load switch according to an embodiment of the present invention;

FIG. 9 is a partial schematic view of a coil module of the DC load switch according to an embodiment of the present invention;

FIG. 10 is a first angled cross-sectional view of the front and rear bases of the DC load switch of the present invention;

FIG. 11 is a second angular cross-sectional view of the front and rear bases of the DC load switch of the present invention;

FIG. 12 is a first angle schematic view of the mechanism of the DC load switch of the present invention;

FIG. 13 is a schematic view of a second angle of installation of the DC load switch mechanism of the present invention;

fig. 14 is a partial schematic view of the front and rear bases of the dc load switch of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another, and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1, the secondary terminal 1, the arc-extinguishing chamber 2 and the operating mechanism 3 are arranged from top to bottom. The operating mechanism 3 is arranged in the middle, the left side is provided with an auxiliary switch assembly 4 and a coil module 5, and the right side is provided with an energy storage motor 6.

Referring to fig. 2, 3 and 4, the dc load switch is of a two-pole type and is symmetrically arranged left and right. The arc extinguish chamber 2 is funnel-shaped, is embedded all around and is fixed on the front base and the rear base 7, and the upper wiring row 8 and the lower wiring row 9 are respectively arranged on the upper part and the lower part of the rear base 7.

As shown in fig. 5, 6 and 7, the auxiliary switch assembly 4 is fixed to the front base at the left side of the operating mechanism 3. The auxiliary switch rotating plate 11 is linked with the mechanism cantilever 10, and the state switching of the auxiliary switch is realized when the mechanism is opened and closed. The auxiliary switch holder 12 limits the rotation angle of the rotation plate 11 by restricting the rotation plate 11.

As shown in fig. 8 and 9, the coil block 5 is fixed to the front base at the left side of the operating mechanism 3. The coil module 5 mainly includes an undervoltage coil 16, a shunt coil 15, and a flexural plate 14. When the coil acts, the coil drives the bent plate 14 to move downwards, and the bent plate 14 enables the mechanism opening half shaft 13 to rotate, so that the mechanism opening is realized.

As shown in fig. 10 and 11, the front and rear bases 7 adopt a nested design. The front base and the rear base 7 are provided with T-shaped grooves 151 and a built-in fixing plate 161, and the fixing plate 161 is provided with symmetrical threaded holes for fixing the arc extinguish chamber 2.

As shown in fig. 12 and 13, the front base is provided with a recess 17 in which a square nut 18 is disposed for fixing the operating mechanism 3.

As shown in fig. 14, the front and rear bases 7 are lower at both sides than at the center in the height direction, and mounting holes 19 are provided at both sides.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A dc load switch, comprising: the secondary terminal is positioned above the operating mechanism, the operating mechanism is positioned below the operating mechanism, and the arc extinguish chamber is positioned between the secondary terminal and the operating mechanism; an auxiliary switch assembly and a coil module are arranged on one side of the operating mechanism, the auxiliary switch assembly is positioned above the coil module, and an energy storage motor is arranged on the other side of the operating mechanism; the direct current load switch adopts a two-pole type on the whole structure and is arranged in a bilateral symmetry mode.

2. The dc load switch of claim 1, wherein the arc chute is funnel-shaped.

3. The dc load switch of claim 2, wherein the arc chute is secured between a front base and a rear base of the dc load switch.

4. The dc load switch according to claim 3, wherein the arc extinguishing chamber is fixed in a nested manner, and a nested design is adopted between the front base and the rear base.

5. The DC load switch according to claim 4, wherein the auxiliary switch assembly is fixed on the front base and located at the left side of the operating mechanism, and the auxiliary switch rotating plate is linked with the mechanism cantilever to realize the switching of the state of the auxiliary switch when the mechanism is opened and closed.

6. The DC load switch of claim 5, wherein the auxiliary switch bracket limits the rotation plate to limit the rotation angle of the rotation plate.

7. The dc load switch of claim 5, wherein said coil module is fixed to said front base on a left side of an operating mechanism; the coil module comprises an undervoltage coil, a shunt coil and a bent plate; when the coil acts, the coil drives the bent plate to move downwards, and the bent plate enables the mechanism opening half shaft to rotate, so that the mechanism opening is realized.

8. The direct-current load switch according to claim 5, wherein the front base and the rear base are both provided with T-shaped grooves, and a fixing plate is arranged in the T-shaped grooves, and symmetrical threaded holes are formed in the fixing plate and used for fixing the arc extinguish chamber.

9. The dc load switch of claim 8, wherein the front base is provided with a recess and a square nut is disposed therein for fixing the operating mechanism.

10. The direct current load switch according to claim 8, wherein the front base and the rear base are lower than the middle at both sides in the height direction, and mounting holes are provided at both sides of the front base and the rear base.