A modular withdrawable static transfer switch device

Abstract

The utility model discloses a modular withdrawable static transfer switch device, comprising: a static transfer switch housing and a module unit, wherein the static transfer switch housing comprises at least one box body, one side of the box body is provided with an opening, and the module unit is used to be withdrawn and pushed in through the opening; each box body comprises: a first primary system connection female socket and a second primary system connection female socket, and the module unit is used to connect the primary system and the module unit; the module unit comprises: a module housing; a first primary system connection male socket, and the first primary system connection female socket is used to be pluggable and connected; a second primary system connection male socket is used to be pluggable and connected to the second primary system connection female socket; a radiator is fixedly arranged in the module housing; a thyristor is arranged on the radiator in the module housing, and is connected with the first primary system connection male socket, the second primary system connection male socket and the secondary system; a static transfer switch driving board is fixedly arranged in the module housing and is used to control the thyristor.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic devices, in particular to a modular withdrawable static transfer switch device. Background Art

[0002] The static transfer switch device is an electronic transfer switch that uses thyristors connecting the primary system and the secondary system to achieve power switching. The power status is determined through the control system of the static transfer switch, and a control signal is sent to control the on and off of the thyristors, thereby achieving power conversion. The core part of the static transfer switch device is the control system and the thyristors. Since the thyristors are components connected in series in the primary system, the replacement and maintenance of traditional static transfer switch devices is particularly difficult.

[0003] Static transfer switch equipment is mainly used for switching between two power supplies. It is an automatic switching system for selecting one of two power sources. According to the application scenarios of the equipment and the diversity of the power supply system, static transfer switch equipment usually has four different types: single-pole, two-pole, three-pole and four-pole. The number of poles of the equipment is usually determined at the beginning of the project.

[0004] Traditional static transfer switch devices usually have the following two structural forms: cabinet type, that is, the static transfer switch device itself is a one-sided or multi-sided cabinet, usually large current static transfer switch devices are mostly of this form; cabinet installation type, this structure can be used when the device current is small, and is installed in other electrical cabinets. However, no matter which form of switch is installed, the maintainability or upgrade is difficult, it takes a long time, and the maintenance or transformation is difficult, which will cause the load to be powered off for a long time.

[0005] Traditional static transfer switch devices with different switch pole numbers usually have different product structures, sizes, etc. In the same application, the styles and sizes of switches with different pole numbers may be completely different. When upgrading and renovation are needed and the number of product poles changes, the equipment needs to be disassembled and assembled, which takes a long time. Utility Model Content

[0006] In order to solve the above problems, the utility model provides a modular withdrawable static transfer switch device, comprising:

[0007] A static transfer switch housing and a module unit, wherein the static transfer switch housing comprises at least one box body, one side of the box body is provided with an opening for allowing the module unit to be pulled out and pushed in through the opening;

[0008] Each of the boxes comprises: a first primary system connection female socket and a second primary system connection female socket, for connecting the primary system and the module unit;

[0009] The module unit comprises:

[0010] module housing;

[0011] A first primary system connection male connector, used for pluggable connection with the first primary system connection female connector;

[0012] A second primary system connection male connector, used for pluggable connection with the second primary system connection female connector;

[0013] A heat sink, fixedly disposed inside the module housing;

[0014] The thyristor is arranged on the heat sink in the module housing and is connected to the first primary system connecting male head, the second primary system connecting male head and the secondary system through connecting wires respectively;

[0015] The static transfer switch driving board is fixedly arranged inside the module housing and is used for controlling the on and off of the thyristor.

[0016] In a possible implementation, the first primary system connection socket is fixed to the box body via a first fixing bracket, and the second primary system connection socket is fixed to the box body via a second fixing bracket.

[0017] In a possible implementation, a handle is provided on the module housing for pulling out the module unit.

[0018] In a possible implementation, a sliding assembly is provided between the interior of the box and the module housing to facilitate pulling out and pushing in the module unit.

[0019] In a possible implementation, the sliding assembly includes:

[0020] A first guide rail bracket and a second guide rail bracket are arranged on both sides of the box body, and a first guide rail and a second guide rail are arranged on both sides of the module unit.

[0021] In a possible implementation, both ends of the first guide rail bracket and the second guide rail bracket, as well as both ends of the first guide rail and the second guide rail, are provided with limiting portions to prevent excessive pushing in or pulling out.

[0022] In a possible implementation, a module roller is disposed between the first guide rail bracket and the first guide rail; and a module roller is disposed between the second guide rail bracket and the second guide rail.

[0023] In a possible implementation, the static transfer switch housing includes at least two boxes, each of which has an opening on one side; a module unit is arranged in each box, and the module units in different boxes are arranged in series or in parallel to form different pole numbers.

[0024] The beneficial effects brought about by the technical solution provided by the embodiment of the utility model include at least: the modular removable static transfer switch device provided by the present application, by configuring the static transfer switch housing and the module unit into a removable structure, can be replaced in a shorter time when a fault occurs, thereby reducing the load power-off time, especially in some important load situations, and can effectively avoid greater losses.

[0025] On the other hand, since the static transfer switch housing in the modular withdrawable static transfer switch device provided by the present application may include multiple boxes, static transfer switches with different pole numbers can be formed by changing the number of module units, and the number of power on / off poles can also be changed during the upgrade and transformation of the static transfer switch device. This effectively solves the problem that when the number of product poles is changed, the device needs to be disassembled and assembled, which takes a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 is a top view of a static transfer switch device provided by an exemplary embodiment of the utility model;

[0028] Figure 2 is a front view of a static transfer switch device provided by an exemplary embodiment of the utility model;

[0029] Figure 3 It is a left view of a static transfer switch device provided by an exemplary embodiment of the utility model.

[0030] Figure Number:

[0031] 1- radiator, 2- first primary system connection female socket, 3- first fixed bracket, 4- first primary system connection male connector, 5- first guide rail, 6- first guide rail bracket, 7- module housing, 8- primary system, 9- static transfer switch drive board, 10- handle, 11- thyristor, 12- second primary system connection female socket, 13- second fixed bracket, 14- second primary system connection male connector, 15- second guide rail, 16- second guide rail bracket, 17- module roller, 18- secondary system, 19- module front panel, 20- static transfer switch housing. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0033] The utility model is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the utility model, but do not limit the utility model in any form. It should be pointed out that for those of ordinary skill in the art, several changes and improvements can be made without departing from the concept of the utility model. These all belong to the protection scope of the utility model.

[0034] See also Figure 1 , Figure 1 1 is a top view of a static transfer switch device provided by an exemplary embodiment of the utility model. The modular withdrawable static transfer switch device provided by the present application comprises: a static transfer switch housing 20 and a module unit, wherein the static transfer switch housing 20 comprises at least one box body, and an opening is provided on one side of the box body for allowing the module unit to be withdrawn and pushed in through the opening.

[0035] Each box includes: a first primary system connection socket 2 and a second primary system connection socket 12, which are used to connect the primary system and the module unit. The first primary system connection socket 2 is fixed to the box through a first fixing bracket 3, and the second primary system connection socket 12 is fixed to the box through a second fixing bracket 13.

[0036] The module unit comprises: a module housing 7 , a first primary system connection male connector 4 for pluggable connection with the first primary system connection female connector 2 , and a second primary system connection male connector 14 for pluggable connection with the second primary system connection female connector 12 .

[0037] The heat sink 1 is fixedly arranged inside the module housing 7; the thyristor 11 is arranged on the heat sink 1 inside the module housing 7, and is respectively connected to the first primary system connection male connector 4, the second primary system connection male connector 14 and the secondary system connection 18 through connecting wires. It also includes a static transfer switch drive board 9, which is fixedly arranged inside the module housing and is used to control the on and off of the thyristor.

[0038] Specifically, Figure 1 The state shown is that the first primary system connection socket 2 and the first primary system connection male connector 4 are tightly connected, and the second primary system connection socket 12 and the second primary system connection male connector 14 are also tightly connected, thereby realizing the combination of the external primary system and the module unit. The control signal is sent to the thyristor 11 through the static transfer switch drive board via the secondary system 18 to control the on and off of the thyristor. The static transfer switch drive board 9 is electrically connected to the control system outside and isolated from other parts.

[0039] Furthermore, a handle 10 is provided on the module housing for pulling out the module unit. A sliding assembly is provided between the interior of the box and the module housing 7 to facilitate the extraction and insertion of the module unit. Exemplarily, the sliding assembly includes: a first guide rail bracket 6 and a second guide rail bracket 16 provided on both sides of the interior of the box, and a first guide rail 5 and a second guide rail 15 provided on both sides of the module unit. A module roller is provided between the first guide rail bracket 6 and the first guide rail 5; and a module roller 17 is provided between the second guide rail bracket and the second guide rail.

[0040] When a module unit fails or needs to be pulled out due to equipment upgrading and modification, it is only necessary to disconnect the module unit from the outside and pull the handle 10 by hand to pull out the module unit. When replacing, it is only necessary to push the module unit along the guide rail first, and finally connect the external electrical wiring to complete the replacement, thereby saving labor.

[0041] Furthermore, in order to prevent excessive pushing in or pulling out, both ends of the first guide rail bracket and the second guide rail bracket, as well as both ends of the first guide rail and the second guide rail are provided with limiting portions.

[0042] In another exemplary embodiment, the sliding assembly may also be a plurality of bearing wheels disposed below the module housing, and the bearing wheels are used to reduce friction, thereby achieving the effect of reducing the pushing-in and pulling-out friction.

[0043] The module unit provided in this embodiment can slide through the sliding assembly and is a removable module structure. When pushed into the final position, the male plug-in terminal and the female plug-in terminal fit tightly together to achieve interaction with the external power supply system.

[0044] For example, see 2 and Figure 3 , Figure 2 is a front view of a static transfer switch device provided by an exemplary embodiment of the utility model; Figure 3 It is a left view of a static transfer switch device provided by an exemplary embodiment of the utility model. In this embodiment, the static transfer switch housing includes at least 4 boxes, and one side of each box is provided with an opening; a module unit can be provided in each box, and different pole numbers can be formed by selecting the number of module units to be loaded and connecting the module units in different boxes in series or in parallel.

[0045] According to the implementation method of this embodiment, a single module unit can realize the switching between one-pole two-way power supply, and can be combined into single-pole, two-pole, three-pole and four-pole switching between two-way power supply by using different numbers of module units; each module unit can be moved back and forth on the guide rail by pulling the handle to realize the removable module unit. When any one-pole module unit fails, the user can pull out the damaged module unit and replace it with a new one.

[0046] After considering the specification and practicing the scheme disclosed herein, those skilled in the art will easily think of other embodiments of the utility model. The utility model is intended to cover any variation, use or adaptation of the utility model, which follows the general principles of the utility model and includes common knowledge or conventional technical means in the technical field not disclosed in the utility model.

[0047] It should be understood that the present invention is not limited to the precise structure described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

[0048] It should be understood that the "plurality" mentioned in this article refers to two or more. "And / or" describes the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects are in an "or" relationship.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A modular withdrawable static transfer switch device, characterized in that: include: A static transfer switch housing and a module unit, wherein the static transfer switch housing comprises at least one box body, one side of the box body is provided with an opening for allowing the module unit to be pulled out and pushed in through the opening; Each of the boxes comprises: a first primary system connection female socket and a second primary system connection female socket, for connecting the primary system and the module unit; The module unit comprises: module housing; A first primary system connection male connector, used for pluggable connection with the first primary system connection female connector; A second primary system connection male connector, used for pluggable connection with the second primary system connection female connector; A heat sink, fixedly disposed inside the module housing; The thyristor is arranged on the heat sink in the module housing and is connected to the first primary system connecting male head, the second primary system connecting male head and the secondary system through connecting wires respectively; The static transfer switch driving board is fixedly arranged inside the module housing and is used for controlling the on and off of the thyristor.

2. The modular withdrawable static transfer switch device according to claim 1, characterized in that: The first primary system connection socket is fixed to the box body through a first fixing bracket, and the second primary system connection socket is fixed to the box body through a second fixing bracket.

3. The modular withdrawable static transfer switch device according to claim 1, characterized in that: The module housing is provided with a handle for pulling out the module unit.

4. The modular withdrawable static transfer switch device according to claim 1, characterized in that: A sliding assembly is arranged between the interior of the box and the module housing to facilitate pulling out and pushing in the module unit.

5. The modular withdrawable static transfer switch device according to claim 4, characterized in that: The sliding assembly comprises: a first guide rail bracket and a second guide rail bracket arranged at two sides of the interior of the box body, and a first guide rail and a second guide rail arranged at two sides of the module unit.

6. The modular withdrawable static transfer switch device according to claim 5, characterized in that: Both ends of the first guide rail bracket and the second guide rail bracket, as well as both ends of the first guide rail and the second guide rail, are provided with limiting parts to prevent excessive pushing in or pulling out.

7. The modular withdrawable static transfer switch device according to claim 6, characterized in that: A module roller is arranged between the first guide rail bracket and the first guide rail; and a module roller is arranged between the second guide rail bracket and the second guide rail.

8. The modular withdrawable static transfer switch device according to claim 1, characterized in that: The static transfer switch housing comprises at least two boxes, and one side of each box is provided with an opening; A module unit is arranged in each of the boxes, and the module units in different boxes are arranged in series or in parallel to form different pole numbers.

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