Automatic transfer switching equipment

Abstract

The utility model discloses automatic transfer switching equipment, which 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. According to the utility model, the compatibility of the automatic transfer switching equipment can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electric appliance switch, especially to an automatic transfer switch. BACKGROUND

[0002] The automatic transfer switch is widely used in high-end residential buildings, commercial buildings, industrial plants, medical buildings, school buildings, office buildings and the like, and 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 automatic transfer switch in the related art is suitable for a single type of backup power supply, which results in poor compatibility of the automatic transfer switch and limits the further application of the automatic transfer switch. SUMMARY

[0004] The utility model provides a kind of automatic transfer switch, to improve the diversity of the backup power supply matched by automatic transfer switch, improve the compatibility of automatic transfer switch.

[0005] According to an aspect of the utility model, an automatic transfer switch is provided, which includes a normal execution switch, a backup execution switch, a transmission mechanism, a main controller, a backup transfer switch, a load end and at least two groups of backup power supply input ends.

[0006] Each backup power supply input end is used to connect a backup power supply, and the backup power supply input end is electrically connected to the first end of the corresponding backup transfer switch. The second end of the backup transfer switch is electrically connected to the first end of the backup execution switch. The second end of the backup execution switch is electrically connected to the load end. The backup transfer switch is used to control the connection state of the backup execution switch and the backup power supply input end.

[0007] The main controller is electrically connected to the transmission mechanism, and the transmission mechanism is used to control the switch state of the backup execution switch and the normal execution switch.

[0008] Optionally, the at least two groups of backup power supply input ends include a backup AC power supply input end and a backup DC power supply input end. The automatic transfer switch further includes an inverter module, and the backup DC power supply input end is electrically connected to the first end of the corresponding 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 supply input end and the backup transfer switch. The main controller is used to control the state of the backup transfer switch according to the state of the backup power supply input end.

[0011] Optionally, the main controller is configured to control the first end of the backup transfer switch corresponding to the backup power supply to be electrically connected to the second end of the backup transfer 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 configured 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 further includes a base plate; the normal execution switch, the backup execution switch, the transmission mechanism, the main controller, the inverter module, the backup transfer switch, the load end and the at least two sets of backup power input ends are arranged on the base plate.

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

[0015] Optionally, the automatic transfer switch appliance further includes a protective shell, which forms a cavity with the base plate, and the normal 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 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 utility model adopts an automatic transfer switch electrical appliance including: a common execution switch, a backup execution switch, a transmission mechanism, a main controller, a backup transfer switch, a load end and at least two groups of backup power input ends; each group of the backup power input ends is used to connect a backup power source, the backup power input end is electrically connected to the first end corresponding to the backup transfer switch, the second end of the backup transfer switch is electrically connected to the first end of the backup execution switch, the second end of the backup execution switch is electrically connected to the load end, and the backup transfer switch is used to control the connection state of the backup execution switch and the backup power input end; the main controller is electrically connected to the transmission mechanism, and the transmission mechanism is used to control the switching state of the backup execution switch and the common execution switch. When a backup power supply is needed, by controlling the state of the backup transfer switch, one of the backup 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 backup power supplies, and the automatic transfer switch electrical appliance has stronger compatibility.

[0020] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present invention, nor is it 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 paying any creative work.

[0022] Figure 1 A schematic diagram of the circuit structure of an automatic transfer switch electrical appliance provided in an embodiment of the utility model;

[0023] Figure 2 A schematic structural diagram of an automatic transfer switch electrical appliance provided by an embodiment of the utility model;

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

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

[0026] Figure 5 This is a structural diagram of another automatic transfer switch electrical appliance provided by an embodiment of the utility model. DETAILED DESCRIPTION

[0027] In order to help those skilled in the art better understand the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 making creative efforts 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 numbers 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 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 This is a schematic diagram of the circuit structure of an automatic transfer switch electrical appliance provided by an embodiment of the utility model. Figure 2 This is a schematic diagram of the structure of an automatic transfer switch provided by the embodiment of the utility model, referring to Figure 1 and Figure 2 The automatic transfer switch electrical appliance includes a normal 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 source, 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 normal execution switch 5.

[0030] Specifically, the automatic transfer switch electrical appliance can be connected between the normal power supply, the backup power supply and the load. Among them, 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 electrically connected 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, closes the normal execution switch 5, and turns off the backup execution switch 6, so that the normal power supply and the load terminal 11 are connected, and the normal power supply is used to supply power to the load. When the normal power supply is abnormal, such as when the power is off, 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 and the load terminal 11 are connected, and the backup power supply is used to supply power to the load. In other words, the automatic transfer switch electrical appliance can realize 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 transfer switch 18 are provided. When the backup transfer 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 terminals 10 connected to the group of first terminals are connected to the backup execution switch 6, and then the backup power input terminals 10 are connected to the load terminals 11, so that the corresponding backup power supplies power the load. Of course, in some gears, the backup transfer 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 connect to multiple backup power sources. When a backup power source is needed, that is, when the backup execution switch 6 is closed, one of the backup power sources 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 connect to multiple backup power sources, and the automatic transfer switch has greater compatibility.

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

[0034] Optionally, Figure 3 A schematic diagram of the circuit structure of another automatic transfer switch electrical appliance provided by the present utility model is provided. Figure 2 and Figure 3 At least two sets 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 further 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 terminal 11 is, for example, an AC load, requiring an AC power source to power the load. With the development of new energy technologies, more and more backup power sources require DC power sources. Therefore, in this embodiment, at least two sets of power input terminals 10 are provided, including a backup AC power input terminal 101 and a backup DC power input terminal 102. The backup AC power input terminal 101 may include four contacts for connecting to a backup AC power source. The backup DC power input terminal 102 may include two contacts for connecting to a backup DC power source. By providing an inverter module 7, the DC power output from the backup DC power source is converted into AC power, which is then transmitted to the backup transfer switch, which in turn transmits the AC power to the backup execution switch 6, ultimately using the backup DC power source to power the load. In other words, the automatic transfer switch of this embodiment can connect to both a backup AC power source and a backup DC power source, expanding the range of backup power sources and further improving the compatibility of the automatic transfer switch. It should be noted that the inverter module 7 includes an inverter circuit. The specific structure and operating principle of the inverter circuit are well known to those skilled in the art and will not be elaborated 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 normal power input terminal 9 is used to connect to a normal power source, such as an AC power source. Therefore, the normal power input terminal 9 may include four contacts. In addition, the first end of the normal execution switch 5 and the first end of the standby execution switch 6 are both connected to a power source. Therefore, the power supply terminal of the main controller 4 can be powered from this.

[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 The following is a schematic diagram of the circuit structure of another automatic transfer switch provided by an embodiment of the present utility model. In this embodiment, the main controller 4 is electrically connected to the backup power input terminal and the backup transfer switch 18. 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 transfer switch 18 of this embodiment is automatically controlled by the main controller 4. The main controller 4 controls the second end of the backup transfer switch 18 to be electrically connected to the first end corresponding to the backup power input terminal based on the status of each backup power input terminal (e.g., whether it is powered or powered off). For example, the main controller can detect whether each backup power input terminal has power. If only one backup power input terminal has power (i.e., is connected to the backup power supply), the main controller controls the first end of the backup transfer switch 18 corresponding to the backup power supply to be electrically connected to the second end of the backup transfer switch 18. Without manual operation, the backup power input terminal with power is automatically selected to supply power to the load.

[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 transfer switch 18 is powered off, the controller 4 can control the backup transfer switch to connect to 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 one 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 one backup power input terminal 10 to be connected to the backup execution switch 6.

[0044] Optionally, in some embodiments, the main controller 4 may be electrically connected to the inverter module 7 to control whether the inverter module 7 is operating. The main controller 4 may control the inverter module 7 to operate only when the backup power input terminal connected to the inverter module 7 is conductively connected to the backup execution switch 6. This prevents the inverter module 7 from operating when it is not needed, thereby reducing 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 base plate 1 can play the role of supporting each circuit module in the automatic transfer switch electrical appliance, and the base plate 1 can be made of insulating material. The base 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 normal 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 transfer 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 normal 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 transfer switch electrical appliance can be made more compact, and the circuit modules with electrical connection relationships are arranged adjacent to each other, and the wiring of the connecting lines between the various circuit modules is also easier.

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

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

[0049] Optionally, the transmission mechanism 3 further includes a first knob 31 ; the standby transfer 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 backup execution switch 6 and the normal 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 normal power supply and the backup 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 state of the normal execution switch 5 and the backup 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 corresponding state mark are set near the second knob 32, and the user can determine the adjustment method of the second knob 32 based on this.

[0052] Optionally, the automatic transfer switch appliance may further include a status indicator light, etc. The status indicator light 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 the processes shown above can be used to reorder, add, or delete steps. For example, the steps described in this utility model can be performed in parallel, sequentially, or in a different order, as long as the desired results of the technical solution of this utility model can be achieved. This is not limited herein.

[0054] The above specific embodiments do not limit the scope of protection of this utility model. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions may be made based on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model shall be included within the scope of protection of this utility model.

Claims

1. An automatic transfer switch electrical appliance, 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 terminals are electrically connected to the first terminals corresponding to the backup transfer switches, the second terminals of the backup transfer switches are electrically connected to the first terminals of the backup execution switches, the second terminals of the backup execution switches are electrically connected to the load terminals, and the backup transfer switches are used to control the connection status of the backup execution switches and the backup power input terminals; 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 normal 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 terminal 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 transfer switch; the main controller is used to control the state of the backup transfer 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 configured to control the first end of the backup transfer switch corresponding to the backup power supply to be electrically connected to the second end of the backup transfer switch when detecting that one of the backup power supply input ends is connected to the backup power supply; And / or, the main controller is configured 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 transfer 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 further 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.

Images