Automatic transfer switching equipment

Abstract

The invention discloses automatic transfer switching equipment. The automatic transfer switching equipment comprises a common execution switch, a standby execution switch, a transmission mechanism, a main controller, a standby transfer switch, a load end and at least two groups of standby power supply input ends, each group of standby power supply input ends is used for being connected with a standby power supply, the standby power supply input ends are electrically connected with the corresponding first end of the standby change-over switch, the second end of the standby change-over switch is electrically connected with the first end of the standby execution switch, and the second end of the standby execution switch is electrically connected with the load end. The standby change-over switch is used for controlling the connection state of the standby execution switch and the standby power supply input end; the main controller is electrically connected with the transmission mechanism, and the transmission mechanism is used for controlling the on-off state of the standby execution switch and the on-off state of the common execution switch. The compatibility of the automatic transfer switching equipment can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of electrical switches, and in particular to an automatic switching electrical switch. Background Art

[0002] Automatic transfer switchgear is widely used in high-end residential buildings, commercial buildings, industrial plants, medical institutions, schools, government office buildings and other places. It can ensure the continuous and reliable power supply of fire-fighting equipment, elevators, emergency lighting, communication equipment and monitoring centers in public facilities.

[0003] However, the types of backup power supplies applicable to the automatic transfer switch electrical apparatus in the related art are relatively single, which makes the compatibility of the automatic transfer switch electrical apparatus poor, limiting the further application of the automatic transfer switch electrical apparatus. Summary of the invention

[0004] The invention provides an automatic transfer switch electrical appliance to improve the diversity of backup power supplies matched by the automatic transfer switch electrical appliance and improve the compatibility of the automatic transfer switch electrical appliance.

[0005] According to one aspect of the present invention, an automatic transfer switch electrical appliance is provided, the automatic transfer switch electrical appliance comprising: a common execution switch, a standby execution switch, a transmission mechanism, a main controller, a standby transfer switch, a load terminal and at least two sets of standby power input terminals;

[0006] Each group of the backup power input terminals is used to connect a backup power supply, the backup power input terminal is electrically connected to the first terminal corresponding to the backup conversion switch, the second terminal of the backup conversion switch is electrically connected to the first terminal of the backup execution switch, the second terminal of the backup execution switch is electrically connected to the load terminal, and the backup conversion switch is used to control the connection state between the backup execution switch and the backup power input terminal;

[0007] The main controller is electrically connected to the transmission mechanism, and the transmission mechanism is used to control the switch states of the standby execution switch and the common execution switch.

[0008] Optionally, the at least two groups of backup power input terminals include a backup AC power input terminal and a backup DC power input terminal; the automatic transfer switch appliance also includes an inverter module, and the backup DC power input terminal is electrically connected to the first end corresponding to the backup transfer switch through the inverter module.

[0009] Optionally, the backup transfer switch includes a universal transfer switch.

[0010] Optionally, the main controller is electrically connected to the backup power input terminal and the backup conversion switch; the main controller is used to control the state of the backup conversion switch according to the state of the backup power input terminal.

[0011] Optionally, the main controller is used to control the first end of the backup conversion switch corresponding to the backup power supply to be electrically connected to the second end of the backup conversion switch when detecting that one of the backup power supply input ends is connected to the backup power supply;

[0012] And / or, the main controller is used to control the backup transfer switch to connect to a backup power input terminal that is not powered off when it is detected that the backup power input terminal currently connected to the backup transfer switch is powered off.

[0013] Optionally, the automatic transfer switch appliance also includes a base plate; the normal execution switch, the standby execution switch, the transmission mechanism, the main controller, the inverter module, the standby transfer switch, the load end and the at least two sets of standby power input ends are arranged on the base plate.

[0014] Optionally, the backup conversion switch is arranged between the backup execution switch and the at least two groups of backup power supply input terminals.

[0015] Optionally, the automatic transfer switch appliance further comprises a protective shell, wherein the protective shell and the base plate form a cavity, and the common execution switch, the standby execution switch, the transmission mechanism, the standby transfer switch, the main controller and the inverter module are arranged in the cavity.

[0016] Optionally, the transmission mechanism further includes a first knob; the standby conversion switch further includes a second knob; and the protective shell exposes the first knob and the second knob.

[0017] Optionally, the automatic transfer switch appliance further comprises a common power input terminal, the common power input terminal is electrically connected to the first terminal of the common execution switch, and the second terminal of the common execution switch is electrically connected to the load terminal;

[0018] The first end of the common execution switch and the first end of the standby execution switch are both electrically connected to the power supply end of the main controller.

[0019] The technical solution of the embodiment of the present invention adopts an automatic transfer switch electrical appliance including: a common execution switch, a standby execution switch, a transmission mechanism, a main controller, a standby transfer switch, a load end and at least two groups of standby power input ends; each group of the standby power input ends is used to connect a standby power supply, the standby power input end is electrically connected to the first end corresponding to the standby transfer switch, the second end of the standby transfer switch is electrically connected to the first end of the standby execution switch, the second end of the standby execution switch is electrically connected to the load end, and the standby transfer switch is used to control the connection state of the standby execution switch and the standby power input end; the main controller is electrically connected to the transmission mechanism, and the transmission mechanism is used to control the switch state of the standby execution switch and the common execution switch. When the standby power supply is needed, by controlling the state of the standby transfer switch, one of the standby power supplies can be selected to power the load. In other words, the automatic transfer switch electrical appliance of this embodiment can be connected to multiple standby power supplies, and the automatic transfer switch electrical appliance has stronger compatibility.

[0020] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. 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.

[0022] Figure 1 A schematic diagram of the circuit structure of an automatic transfer switch electrical appliance provided by an embodiment of the present invention;

[0023] Figure 2 A schematic diagram of the structure of an automatic transfer switch electrical appliance provided by an embodiment of the present invention;

[0024] Figure 3 A schematic diagram of the circuit structure of another automatic transfer switch electrical appliance provided by an embodiment of the present invention;

[0025] Figure 4 A schematic diagram of the circuit structure of another automatic transfer switch electrical appliance provided by an embodiment of the present invention;

[0026] Figure 5 A schematic structural diagram of another automatic transfer switch electrical appliance provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. 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 should fall within the scope of protection of the present invention.

[0028] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0029] Figure 1 A schematic diagram of the circuit structure of an automatic transfer switch electrical appliance provided in an embodiment of the present invention, Figure 2 A schematic diagram of the structure of an automatic transfer switch electrical appliance provided by an embodiment of the present invention, referring to Figure 1 and Figure 2 The automatic transfer switch appliance includes a common execution switch 5, a standby execution switch 6, a transmission mechanism 3, a main controller 4, a standby transfer switch 18, a load terminal 11 and at least two groups of standby power input terminals 10; each group of standby power input terminals 10 is used to connect a standby power supply, the standby power input terminal 10 is electrically connected to the first end corresponding to the standby transfer switch 18, the second end of the standby transfer switch 18 is electrically connected to the first end of the standby execution switch 6, and the second end of the standby execution switch 6 is electrically connected to the load terminal 11; the standby transfer switch 18 is used to control the connection state of the standby execution switch 6 and the standby power input terminal 10; the main controller 4 is electrically connected to the transmission mechanism 3, and the transmission mechanism 3 is used to control the switching state of the standby execution switch 6 and the common execution switch 5.

[0030] Specifically, the automatic transfer switch can be connected between the normal power supply, the backup power supply and the load. The normal power supply is also the main power supply, and the normal execution switch 5 is electrically connected to the normal power supply and to the load terminal 11. The backup power supply is electrically connected to the backup execution switch 6, and the backup execution switch 6 is also electrically connected to the load terminal 11. The load terminal 11 is used to connect the load. When the normal power supply is normal, the main controller 4 controls the transmission mechanism 3, the normal execution switch 5 is closed, and the backup execution switch 6 is turned off, so that the normal power supply is connected to the load terminal 11, and the normal power supply is used to supply power to the load. When the normal power supply is abnormal, such as power failure, the main controller 4 controls the transmission mechanism 3 to turn off the normal execution switch 5 and close the backup execution switch 6, so that the backup power supply is connected to the load terminal 11, and the backup power supply is used to supply power to the load. In other words, the automatic transfer switch can realize the automatic switching between the normal power supply and the backup power supply, thereby ensuring the normal operation of the load.

[0031] In this embodiment, at least two groups of backup power input terminals 10 and a backup conversion switch 18 are provided. When the backup conversion switch 18 has multiple gears, in some gears, a group of first terminals are connected to the second terminals, and then the backup power input terminal 10 connected to the group of first terminals is connected to the backup execution switch 6, and then the backup power input terminal 10 is connected to the load terminal 11, so that the corresponding backup power supply supplies power to the load. Of course, in some gears, the backup conversion switch 18 can turn off any one of the first terminals and the second terminal. It can be understood that the number of contacts included in each group of backup power input terminals in this embodiment can be determined according to the type of power supply connected, and this embodiment does not specifically limit this.

[0032] In this embodiment, the automatic transfer switch can be connected to multiple backup power supplies. When the backup power supply is needed, that is, the backup execution switch 6 is closed, one of the backup power supplies can be selected to power the load by controlling the state of the backup transfer switch 18. In other words, the automatic transfer switch of this embodiment can be connected to multiple backup power supplies, and the automatic transfer switch has stronger compatibility.

[0033] The technical solution of this embodiment adopts an automatic transfer switch electrical appliance including: a common execution switch, a standby execution switch, a transmission mechanism, a main controller, a standby transfer switch, a load end and at least two groups of standby power input ends; each group of the standby power input ends is used to connect a standby power supply, the standby power input end is electrically connected to the first end corresponding to the standby transfer switch, the second end of the standby transfer switch is electrically connected to the first end of the standby execution switch, the second end of the standby execution switch is electrically connected to the load end, and the standby transfer switch is used to control the connection state between the standby execution switch and the standby power input end; the main controller is electrically connected to the transmission mechanism, and the transmission mechanism is used to control the switch state of the standby execution switch and the common execution switch. When the standby power supply is needed, by controlling the state of the standby transfer switch, one of the standby power supplies can be selected to power the load. In other words, the automatic transfer switch electrical appliance of this embodiment can be connected to multiple standby power supplies, and the automatic transfer switch electrical appliance has stronger compatibility.

[0034] Optionally, Figure 3 A circuit diagram of another automatic transfer switch electrical appliance provided in an embodiment of the present invention is shown in FIG. Figure 2 and Figure 3 At least two groups of backup power input terminals 10 include a backup AC power input terminal 101 and a backup DC power input terminal 102; the automatic transfer switch appliance also includes an inverter module 7, and the backup DC power input terminal 102 is electrically connected to the first terminal corresponding to the backup execution switch through the inverter module 7.

[0035] Specifically, the load end 11 is, for example, an AC load, that is, an AC power supply is required to power the load. With the development of new energy technologies, more and more backup power supplies need to be DC power supplies. Therefore, in this embodiment, at least two groups of power input terminals 10 are provided, including a backup AC power input terminal 101 and a backup DC power input terminal 102. Among them, the backup AC power input terminal 101 may include 4 contacts to connect the backup AC power supply. The backup DC power input terminal 102 may include 2 contacts to connect the backup DC power supply. By setting the inverter module 7, the DC power output by the backup DC power supply is converted into AC power, the AC power is transmitted to the backup conversion switch, and then the AC power is transmitted to the backup execution switch 6, and finally the backup DC power supply is used to power the load. That is to say, the automatic transfer switch electrical appliance of this embodiment can be connected to both the backup AC power supply and the backup DC power supply, and the types of backup power supplies that can be connected are more abundant, further improving the compatibility of the automatic transfer switch electrical appliance. It should be noted that the inverter module 7 includes an inverter circuit, and the specific structure and working principle of the inverter circuit are well known to those skilled in the art, and will not be repeated here.

[0036] Optionally, the automatic transfer switch appliance also includes a common power input terminal 9, which is electrically connected to the first end of the common execution switch 5, and the second end of the common execution switch 5 is electrically connected to the load terminal 11; the first end of the common execution switch 5 and the first end of the standby execution switch 6 are both electrically connected to the power supply end of the main controller 4.

[0037] Specifically, the common power input terminal 9 is used to connect a common power source, such as an AC power source, and therefore, the common power input terminal 9 may include four contacts. In addition, the first end of the common execution switch 5 and the first end of the standby execution switch 6 are both connected to the power source, and therefore, the power supply end of the main controller 4 can be powered from here.

[0038] Optionally, refer to Figure 2 In some embodiments, the backup transfer switch 18 includes a universal transfer switch 8 .

[0039] Specifically, in this embodiment, the gear position of the universal transfer switch 8 can be manually adjusted to switch the backup power supply connected to the backup execution switch 6. The backup transfer switch in this embodiment adopts a universal transfer switch, which can reduce the cost of the automatic transfer switch electrical appliance.

[0040] Alternatively, in some other embodiments, such as Figure 4 As shown, Figure 4 A circuit diagram of another automatic transfer switch electrical appliance provided in an embodiment of the present invention. In this embodiment, the main controller 4 is electrically connected to the backup power input terminal and the backup transfer switch 18, and the main controller 4 is used to control the state of the backup transfer switch 18 according to the state of the backup power input terminal.

[0041] Specifically, the backup conversion switch 18 of this embodiment is automatically controlled by the main controller 4. The main controller 4 controls the second end of the backup conversion switch 18 to be connected to the first end corresponding to which backup power input end according to the state of each backup power input end (such as whether there is power or whether the power is off, etc.). For example, the main controller can detect whether each backup power input end has power. If only one backup power input end has power (i.e., is connected to the backup power), the first end of the backup conversion switch 18 corresponding to the backup power connected is controlled to be electrically connected to the second end of the backup conversion switch 18, and the backup power input end with power can be automatically selected to supply power to the load without manual operation.

[0042] In the process of using the backup power supply to supply power to the load end, if it is detected that the backup power supply is powered off, that is, when the main controller detects that the backup power input end currently connected to the backup conversion switch 18 is powered off, the controller 4 can control the backup conversion switch to connect a backup power input end that is not powered off.

[0043] When multiple backup power input terminals 10 are powered, the controller can automatically configure the backup transfer switch 18 to select a backup power input terminal 10 to be connected to the backup execution switch 6. Of course, the user can also manually control the state of the backup transfer switch to select a backup power input terminal 10 to be connected to the backup execution switch 6.

[0044] Optionally, in some embodiments, the main controller 4 may also be electrically connected to the inverter module 7 to control whether the inverter module 7 is working. The main controller 4 may control the inverter module 7 to work only when the backup power input terminal connected to the inverter module 7 is turned on by the backup execution switch 6. Thus, the inverter module 7 does not work when it is not needed, which can reduce power consumption.

[0045] Optionally, continue to refer to Figure 2 The automatic transfer switch appliance also includes a base plate 1; a common execution switch 5, a standby execution switch 6, a transmission mechanism 3, a main controller 4, a standby transfer switch (universal transfer switch 8), a load terminal 11 and the at least two sets of standby power input terminals 10 are arranged on the base plate 1.

[0046] Specifically, the bottom plate 1 can play the role of supporting each circuit module in the automatic transfer switch electrical appliance, and the bottom plate 1 can be made of insulating material. The bottom plate 1 is, for example, a rectangular structure, but is certainly not limited thereto. Figure 2 As shown, at least two groups of backup power input terminals 10 are arranged adjacent to each other and can be arranged at one of the vertex corners (defined as the first vertex corner) of the base plate 1. The load terminal 11 is arranged at a vertex corner adjacent to the first vertex corner (defined as the second vertex corner). The backup execution switch 6 can be arranged at a third vertex corner adjacent to the first vertex corner and opposite to the second vertex corner. The common execution switch 5 can be arranged at a fourth vertex corner adjacent to the second vertex corner and opposite to the first vertex corner. The backup conversion switch 8 is arranged at a position between the first vertex corner and the third vertex corner. The transmission mechanism 3 is arranged between the common execution switch 5 and the backup execution switch 6. The inverter module 7 can be arranged in the middle of the base plate 1. In this way, the structure of the automatic conversion switch electrical appliance can be made more compact, and the circuit modules that are electrically connected are arranged adjacent to each other, and the wiring of the connecting wires between the circuit modules is also easier.

[0047] Optionally, Figure 5 A schematic diagram of the structure of another automatic transfer switch electrical appliance provided by an embodiment of the present invention, referring to Figure 5 The automatic transfer switch appliance further comprises a protective shell 2, which forms a cavity with the bottom plate 1, and a common execution switch 5, a standby execution switch 6, a transmission mechanism 3, a standby transfer switch (universal transfer switch 8), a main controller 4 and an inverter module 7 are arranged in the cavity.

[0048] Specifically, the protective shell 2 is made of insulating material, for example. The protective shell 2 can protect the various circuit modules in the automatic transfer switch electrical appliance from external physical impact or chemical corrosion, etc. It can also be insulated from the outside to reduce the probability of danger.

[0049] Optionally, the transmission mechanism 3 further includes a first knob 31 ; the standby conversion switch 18 further includes a second knob 81 ; and the protective shell 2 exposes the first knob 31 and the second knob 81 .

[0050] Specifically, the state of the transmission mechanism 3 can be controlled by the first knob 31, thereby controlling the switch states of the standby execution switch 6 and the common execution switch 5. In some embodiments, the transmission mechanism 3 has an automatic mode and a manual mode, and the specific mode is controlled by the main controller 4. When the transmission mechanism 3 is in automatic mode, the common power supply and the standby power supply are automatically switched, and the first knob cannot be manually controlled at this time. When the transmission mechanism 3 is in manual mode, the states of the common execution switch 5 and the standby execution switch 6 can be controlled by manually adjusting the first knob 31. It can be understood that the rotation direction and state identification are set near the first knob 31, and the user can determine the adjustment method of the first knob 31 based on this.

[0051] The second knob 81 is used to adjust the state of the standby switch 18. The user can control the state of the standby switch 18 by manually adjusting the second knob 81. The rotation direction and the corresponding state mark are set near the second knob 32, and the user can determine the adjustment method of the second knob 32 accordingly.

[0052] Optionally, the automatic transfer switch appliance may further include a status indicator light, which is electrically connected to the main controller and is used to indicate whether the automatic transfer switch appliance is working, whether the normal execution switch is closed, or whether the standby execution switch is closed.

[0053] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0054] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic transfer switch, characterized in that: The automatic transfer switch electrical appliance comprises: a common execution switch, a standby execution switch, a transmission mechanism, a main controller, a standby transfer switch, a load terminal and at least two sets of standby power input terminals; Each group of the backup power input terminals is used to connect a backup power supply, the backup power input terminal is electrically connected to the first terminal corresponding to the backup conversion switch, the second terminal of the backup conversion switch is electrically connected to the first terminal of the backup execution switch, the second terminal of the backup execution switch is electrically connected to the load terminal, and the backup conversion switch is used to control the connection state between the backup execution switch and the backup power input terminal; The main controller is electrically connected to the transmission mechanism, and the transmission mechanism is used to control the switch states of the standby execution switch and the common execution switch.

2. The automatic transfer switch according to claim 1, characterized in that: The at least two groups of backup power input terminals include a backup AC power input terminal and a backup DC power input terminal; the automatic transfer switch electrical appliance also includes an inverter module, and the backup DC power input terminal is electrically connected to the first end corresponding to the backup transfer switch through the inverter module.

3. The automatic transfer switch according to claim 2, characterized in that: The standby transfer switch comprises a universal transfer switch.

4. The automatic transfer switch according to claim 1, characterized in that: The main controller is electrically connected to the backup power input terminal and the backup conversion switch; the main controller is used to control the state of the backup conversion switch according to the state of the backup power input terminal.

5. The automatic transfer switch according to claim 4, characterized in that: The main controller is used to control the first end of the backup conversion switch corresponding to the backup power supply to be electrically connected to the second end of the backup conversion switch when it is detected that one of the backup power supply input ends is connected to the backup power supply; And / or, the main controller is used to control the backup transfer switch to connect to a backup power input terminal that is not powered off when it is detected that the backup power input terminal currently connected to the backup transfer switch is powered off.

6. The automatic transfer switch according to claim 2, characterized in that: The automatic transfer switch appliance also includes a base plate; the common execution switch, the standby execution switch, the transmission mechanism, the main controller, the inverter module, the standby transfer switch, the load end and the at least two sets of standby power input ends are arranged on the base plate.

7. The automatic transfer switch according to claim 6, characterized in that: The standby conversion switch is arranged between the standby execution switch and the at least two groups of standby power input terminals.

8. The automatic transfer switch according to claim 7, characterized in that: The automatic transfer switch appliance also includes a protective shell, which forms a cavity with the base plate, and the common execution switch, the standby execution switch, the transmission mechanism, the standby transfer switch, the main controller and the inverter module are arranged in the cavity.

9. The automatic transfer switch according to claim 8, characterized in that: The transmission mechanism further includes a first knob; the standby conversion switch further includes a second knob; the protective shell exposes the first knob and the second knob.

10. The automatic transfer switch according to claim 1, characterized in that: The automatic transfer switch appliance further comprises a common power input terminal, the common power input terminal is electrically connected to the first terminal of the common execution switch, and the second terminal of the common execution switch is electrically connected to the load terminal; The first end of the common execution switch and the first end of the standby execution switch are both electrically connected to the power supply end of the main controller.

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