A power wiring module and an automatic switching switch having the same

Abstract

The present invention provides a power wiring module and an automatic transfer switch electrical appliance having the same, belonging to the technical field of automatic transfer switches, wherein the power wiring module comprises: a module housing; a fixing plate, which is arranged at one end of the module housing and bent downward to the bottom of the module housing, and the fixing plate is suitable for connecting with the second power wiring terminal of the isolation mechanism module; a spare wiring terminal, which is arranged at the other end of the module housing; when the module housing is connected to the isolation mechanism module, the spare wiring terminal and the first power wiring terminal of the isolation mechanism module are arranged with an upper and lower interval; a connecting plate, which is arranged inside the module housing and is respectively connected to the fixing plate and the spare wiring terminal; the power wiring module of the present invention is used to convert the automatic transfer switch electrical appliances on both sides into the automatic transfer switch electrical appliances on the same side, so as to make up for the defects of the switch wiring terminals on both sides.

Description

Technical Field

[0001] The invention relates to the technical field of automatic transfer switches, and in particular to a power connection module and an automatic transfer switch electrical appliance having the same. Background Art

[0002] Automatic transfer switching equipment, or ATSE (Automatic Transfer Switching Equipment), is mainly suitable for emergency power supply systems with rated voltages not exceeding 1000V AC or 1500V DC. In the GB / T14048.11 standard, a transfer switch is defined as an appliance that converts one or several load circuits from one power source to another; an automatic transfer switching equipment (ATSE) is composed of one (or several) transfer switching equipment and other necessary equipment, used to monitor the power circuit and automatically convert one or several load circuits from one power source to another. That is, between two power sources, one that meets the standards is selected to continuously supply power to the load. This is the most basic function of ATSE.

[0003] At present, the automatic transfer switch electrical appliances (hereinafter referred to as "switches") on the market are divided into the following two categories according to the distribution of I power terminals and II power terminals:

[0004] 1. The Ⅰ power terminals are placed on one side, and the Ⅱ power terminals and load terminals are placed on the same side (such as Figure 1 As shown), that is, the I power terminal and the II power terminal are set on both sides of the automatic transfer switch. This type of automatic transfer switch is called "two-side automatic transfer switch" (referred to as "two-side switch"). The main defects of the two-side switch are that the space occupied by the primary wiring of the II power supply is large, the amount of cable or copper bar consumed is large, the copper bar processing time is long, the copper bar size requirements are strict, and once the size deviation occurs during the bar making, the copper bar will be scrapped, and the user will waste a lot of copper bars during the primary wiring. The sizes of the primary wiring bars between the poles of the I and II power supplies and the poles of the load end of the two-side switch are different, and the bar making consumes time, which directly causes high labor costs; the installation space occupied by the primary wiring of the opposite-side switch is large, resulting in waste caused by the installation of complete cabinet electrical components. The advantages of the two-side switch are reliable operation, high usage category, and high technical indicators of the main circuit contact parameters.

[0005] 2. The Ⅰ power terminal and Ⅱ power terminal are set on the same side of the automatic transfer switch, and the load terminal is placed on the other side (such as Figure 2As shown in Figure 1, this type of automatic transfer switch is called "same-side automatic transfer switch" (hereinafter referred to as "same-side switch"). The I power supply contact system and II power supply contact system of the same-side switch are usually combined as a whole, and their structures are interrelated and mutually restricted, with a compact structure. Its usage category and contact parameter technical indicators are not as good as those of the two-side automatic transfer switch.

[0006] In summary, the above two structures of automatic transfer switch electrical appliances do not belong to the same type of switch, that is, the switch on the same side is relatively independent of the switches on both sides, and users can only choose one of them when selecting or using. The above two distribution structures cannot be implemented on the same switch for users to choose. If the user installs the switches on both sides and finds that the switch selection is inappropriate or there is not enough space for the primary wiring, it is temporarily necessary to change the primary wiring on both sides to the primary wiring on the same side. The automatic transfer switch electrical appliances on the market currently cause the following confusion to users: the installed switches on both sides are disassembled and returned to the manufacturer, and the corresponding expenses are borne, and the already made wiring copper bars or cables are scrapped. Re-ordering a new switch on the same side consumes the ordering cycle again, and the time cost and labor cost of the primary line production. In view of this situation, whether it is possible to achieve two-input and one-output (that is, to achieve two wiring methods for the same product) without changing or destroying the structure of the automatic transfer switch electrical appliances on both sides is worth exploring and exploring. Summary of the invention

[0007] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the two types of automatic transfer switch electrical appliances in the prior art are not interchangeable, thereby providing a power connection module and an automatic transfer switch electrical appliance having the same.

[0008] In order to solve the above technical problems, the present invention provides a power connection module, comprising:

[0009] A module housing, suitable for connection to an isolation mechanism module of an automatic transfer switch;

[0010] A fixing plate, arranged at one end of the module housing and bent downward to the bottom of the module housing, the fixing plate being suitable for connecting to the second power supply terminal of the isolation mechanism module;

[0011] A spare wiring terminal is arranged at the other end of the module housing; when the module housing is connected to the isolation mechanism module, the spare wiring terminal and the first power supply wiring terminal of the isolation mechanism module are arranged with an interval up and down;

[0012] The connecting plate is arranged inside the module housing and is respectively connected to the fixing plate and the spare connecting terminal.

[0013] As a preferred solution, an air flow channel is provided in the module housing, one end of the air flow channel is suitable for communicating with the arc spray hole of the isolation mechanism module, and the other end of the air flow channel is communicated with the outside.

[0014] As a preferred solution, one end of the airflow channel for communicating with the arc spray hole of the isolation mechanism module extends downwardly out of the module housing and is suitable for abutting against the top end of the arc extinguishing chamber of the isolation mechanism module.

[0015] As a preferred solution, the connecting plate has an avoidance cavity that bypasses the airflow channel.

[0016] As a preferred solution, the connecting plate has a side plate vertically arranged along the outer side wall of the airflow channel, and the side plate constitutes an avoidance cavity that bypasses the airflow channel.

[0017] As a preferred solution, the module housing is a split structure, comprising: a left housing and a right housing, and the left housing and the right housing are butt-jointed left and right.

[0018] As a preferred solution, the module housing further comprises: a protective panel, which is arranged to cover the upper part of the butt-connected left housing and right housing.

[0019] The present invention provides an automatic transfer switch electrical appliance, comprising: the power wiring module described in any one of the above, and also comprising: an isolation mechanism module; the power wiring module is connected above the isolation mechanism module.

[0020] As a preferred solution, both ends of the power connection module have plug-in boards with a width smaller than that of the module housing, and the plug-in boards are suitable for being inserted into the isolation mechanism module.

[0021] As a preferred solution, the plug board has a positioning hole, and the isolation mechanism module has a threaded hole opposite to the positioning hole.

[0022] The technical solution of the present invention has the following advantages:

[0023] 1. The power connection module provided by the present invention is used to convert the automatic transfer switch electrical appliances on both sides into the automatic transfer switch electrical appliances on the same side, so as to make up for the defects of the switch connection terminals on both sides; when in use, it is set on the isolation mechanism module of the automatic transfer switch electrical appliances on both sides, and is electrically connected to the second power connection terminal of the isolation mechanism module through the fixing plate, and the fixing plate is electrically connected to the spare connection terminal through the connecting plate, and the spare connection terminal is set at the other end of the module housing opposite to the fixing plate, so that the second power connection terminal of the isolation mechanism module is converted to the same end as the first power connection terminal, so that the automatic transfer switch electrical appliance becomes the same side automatic transfer switch, which is convenient for users to use.

[0024] 2. The power wiring module provided by the present invention has an airflow channel in the module housing for guiding the arc or airflow ejected from the arc nozzle of the isolation mechanism module to prevent the arc or airflow from damaging the conductive elements in the module housing.

[0025] 3. The automatic transfer switch electrical appliance provided by the present invention adds a power wiring module on the basis of the automatic transfer switches on both sides. It not only has the advantages of the automatic transfer switches on both sides, but also when the power wiring module is used, the function of the power wiring module is to convert the switches on both sides into automatic transfer switches on the same side, so that the first power wiring terminal and the second power wiring terminal are distributed on the same side, and the structural advantages of the wiring terminals of the switches on the same side are fully utilized to improve the utilization rate of the primary line, so as to make up for the defects of the wiring terminals of the switches on both sides, reduce the space occupied by the primary wiring of the switch, reduce the primary wire material, and compress the working hours caused by making copper busbars or cables for the primary wire. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0027] Figure 1 It is a three-dimensional structural diagram of the automatic transfer switch electrical appliance on both sides described in the background technology.

[0028] Figure 2 It is a three-dimensional structural schematic diagram of the same-side automatic transfer switch electrical appliance described in the background technology.

[0029] Figure 3 A schematic three-dimensional structural diagram of a specific implementation of the automatic transfer switch electrical appliance provided by the present invention.

[0030] Figure 4 This is a schematic diagram of the installation of the power wiring module provided by the present invention.

[0031] Figure 5 A three-dimensional diagram of the power wiring module provided by the present invention.

[0032] Figure 6 for Figure 5 Magnified view of area A.

[0033] Figure 7 for Figure 5 Exploded diagram.

[0034] Figure 8 for Figure 7 Schematic diagram of the installation position of the connecting plate in the module housing.

[0035] Fig. 9 This is a three-dimensional view of the automatic transfer switch electrical appliance from an upward angle.

[0036] Fig.10 Schematic diagram of the internal structure of the power wiring module installed on the isolation mechanism module.

[0037] Description of reference numerals:

[0038] 1. I power terminal; 2. II power terminal; 3. Power terminal module; 4. First power terminal; 5. Second power terminal; 6. Spare terminal; 7. Plug-in board; 8. Positioning hole; 9. Isolation mechanism module; 10. Groove; 11. Left shell; 12. Right shell; 13. Protective panel; 14. Air flow channel; 15. Fixing plate; 16. Connecting plate; 17. Side plate; 18. Arc nozzle; 19. Arc extinguishing chamber. DETAILED DESCRIPTION

[0039] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are 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 cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0041] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0043] like Figure 1 As shown, the automatic transfer switch electrical appliance on both sides described in the background technology, the power connection terminal Ⅰ 1 and the power connection terminal Ⅱ 2 of the automatic transfer switch electrical appliance are arranged on both sides of the automatic transfer switch electrical appliance.

[0044] like Figure 2 As shown, it is the same-side automatic transfer switch electrical appliance described in the background technology, and the I power connection terminal 1 and the II power connection terminal 2 of the automatic transfer switch electrical appliance are arranged on the same side of the automatic transfer switch electrical appliance.

[0045] This embodiment provides an automatic transfer switch device, such as Figure 3 As shown, based on the automatic transfer switch electrical appliances on both sides, a power connection module 3 is arranged on the isolation mechanism module 9 of the automatic transfer switch electrical appliances. Through the multiple power connection modules 3 arranged in parallel, the second power connection terminal 5 on the automatic transfer switch electrical appliance is transferred to the same side as the first power connection terminal 4.

[0046] like Figure 4 , Figure 5 As shown, the automatic transfer switch electrical appliance of this embodiment has a plug-in board 7 with a width smaller than that of the module housing at both ends of the power wiring module 3, and the plug-in board 7 is inserted into the isolation mechanism module 9, and a positioning hole 8 is provided on the plug-in board 7; on the isolation mechanism module 9, there is a matching structure for receiving the power wiring module 3, including a groove 10 suitable for inserting the plug-in board 7 of the power wiring module 3, and also including a threaded hole opposite to the positioning hole 8 for screwing in a locking bolt.

[0047] like Figure 5 As shown, the module housing of the power connection module 3 is a split structure, and the module housing includes: a left housing 11, a right housing 12 and a protective panel 13, and the left housing 11 and the right housing 12 are butt-jointed left and right.

[0048] like Figure 6 As shown, the butt joint surface between the left shell 11 and the right shell 12 of the module shell adopts a staggered butt joint arrangement at least at the airflow channel 14. This arrangement can improve the sealing of the airflow channel 14 and prevent arcs or airflow from invading the module shell from the airflow channel 14. In addition, the butt joint surfaces between the left shell 11 and the right shell 12 of this embodiment are all staggered butt jointed, which can prevent the left shell 11 and the right shell 12 from being misaligned and improve the accuracy and efficiency of installation.

[0049] like Figure 7As shown, the protective panel 13 is covered on the left shell 11 and the right shell 12 after docking connection. The module shell of the power connection module 3 includes: a fixed plate 15, a spare terminal 6 and a connecting plate 16. The fixed plate 15 is arranged at one end of the module shell and is bent downward to the bottom of the module shell. The fixed plate 15 is suitable for connecting with the second power connection terminal 5 of the isolation mechanism module 9. The spare terminal 6 is arranged at the other end of the module shell, and the spare terminal 6 is bent upward to the middle and upper part of the module shell; when the module shell is connected to the isolation mechanism module 9, the spare terminal 6 and the first power connection terminal 4 of the isolation mechanism module 9 are arranged at an interval up and down. The connecting plate 16 is connected between the fixed plate 15 and the spare terminal 6. The connecting plate 16 includes a side plate 17 and connecting plates at both ends of the side plate 17. The connecting plate 16 is also divided into two left and right parts. An avoidance cavity is formed between the side plates 17 of the two connecting plates 16 to avoid the airflow channel 14 and prevent the electric arc or airflow from damaging the conductive parts.

[0050] like Figure 8 As shown, the side plate 17 of the connecting plate 16 is vertically arranged along the outer side wall of the air flow channel 14 of the module housing to form an avoidance cavity to bypass the air flow channel 14 .

[0051] like Fig. 9 As shown, after the plug-in board 7 of the power wiring module 3 is inserted into the groove 10 of the isolation mechanism module 9, the positioning hole 8 on the plug-in board 7 is opposite to the threaded hole on the isolation mechanism module 9. After the bolt is passed through the positioning hole 8 and connected to the threaded hole, the bolt nut is accommodated in the positioning hole 8, so that the power wiring module 3 is positioned and cannot be pulled out.

[0052] like Fig.10 As shown, one end of the airflow channel 14 in the module housing communicates with the arc spray hole 18 of the isolation mechanism module 9, and the other end of the airflow channel 14 communicates with the outside. Specifically, inside the module housing, one end of the airflow channel 14 used to communicate with the arc spray hole 18 of the isolation mechanism module 9 extends downward out of the module housing and abuts against the upper end of the arc extinguishing chamber 19 of the isolation mechanism module 9, so that the arc spray hole 18 of the arc extinguishing chamber 19 communicates with the airflow channel 14.

[0053] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. However, the obvious changes or modifications derived therefrom are still within the scope of protection of the present invention.

Claims

1. A power connection module, characterized in that: include: A module housing, suitable for being connected to an isolation mechanism module (9) of an automatic transfer switch; a fixing plate (15), arranged at one end of the module housing and bent downward to the bottom of the module housing, the fixing plate (15) being suitable for connecting to the second power supply terminal (5) of the isolation mechanism module (9); A spare wiring terminal (6) is arranged at the other end of the module housing; when the module housing is connected to the isolation mechanism module (9), the spare wiring terminal (6) and the first power supply wiring terminal (4) of the isolation mechanism module (9) are arranged with an upper and lower spacing; A connecting plate (16) is arranged inside the module housing and is respectively connected to the fixing plate (15) and the spare connecting terminal (6).

2. The power connection module according to claim 1, characterized in that: An airflow channel (14) is provided in the module housing, one end of the airflow channel (14) is suitable for communicating with the arc spray hole (18) of the isolation mechanism module (9), and the other end of the airflow channel (14) is communicated with the outside.

3. The power connection module according to claim 2, characterized in that: One end of the airflow channel (14) communicating with the arc spray hole (18) of the isolation mechanism module (9) extends downward out of the module housing and is suitable for abutting against the top end of the arc extinguishing chamber (19) of the isolation mechanism module (9).

4. The power connection module according to claim 2, characterized in that: The connecting plate (16) is provided with an avoidance cavity that bypasses the airflow channel (14).

5. The power connection module according to claim 4, characterized in that: The connecting plate (16) has a side plate (17) vertically arranged along the outer side wall of the airflow channel (14), and the side plate (17) forms a avoidance cavity that bypasses the airflow channel (14).

6. The power connection module according to any one of claims 1 to 5, characterized in that: The module housing is a split structure, comprising a left housing (11) and a right housing (12), wherein the left housing (11) and the right housing (12) are butt-jointed with each other.

7. The power connection module according to claim 6, characterized in that: The module housing further comprises a protective panel (13) which is arranged to cover the upper part of the butt-connected left housing (11) and right housing (12).

8. An automatic transfer switch, characterized in that: include: The power connection module according to any one of claims 1 to 7, further comprising: an isolation mechanism module (9); The power connection module is connected above the isolation mechanism module (9).

9. The automatic transfer switch according to claim 8, characterized in that: Both ends of the power connection module are provided with plug-in boards (7) whose width is smaller than that of the module housing, and the plug-in boards (7) are suitable for being inserted into the isolation mechanism module (9).

10. The automatic transfer switch according to claim 9, characterized in that: The plug board (7) is provided with a positioning hole (8), and the isolation mechanism module (9) is provided with a threaded hole opposite to the positioning hole (8).

Images