Power supply device and power supply system

Abstract

The utility model discloses a power supply device and a power supply system. The power supply device comprises at least two battery power supply branches arranged in parallel and used for supplying power to a load; each battery power supply branch comprises a battery switch, and the battery switch comprises an operation handle used for switching the switch state; the power supply device further comprises limiting structures in one-to-one correspondence with the battery switches, and each limiting structure comprises a signal switch and a telescopic mechanism. All the signal switches are in signal connection and are used for connecting or disconnecting power supply loops of the corresponding telescopic mechanisms; when the power supply loop of the telescopic mechanism is switched on, the telescopic rod of the telescopic mechanism limits the operation handle to enable the battery switch to be in a closed state; in the battery switches and the limiting structures which are in one-to-one correspondence, the signal switches are in signal connection with the battery switches, and when the battery switches are in an off state, the signal switches are connected with power supply loops of the telescopic mechanisms in the other limiting structures. The power supply device can prevent the battery from being separated from the bus, keeps supplying power to the load, and improves the power supply reliability.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a power supply device and a power supply system. Background Art

[0002] The power supply system has extremely high requirements for the power supply to the load. It is usually necessary to ensure that the load is powered at all times to prevent the battery from being disconnected from the bus and affecting the power supply to the load. Utility Model Content

[0003] The present application discloses a power supply device and a power supply system, which can prevent a battery from being disconnected from a bus bar, thereby affecting the power supply to a load and improving the reliability of power supply.

[0004] In order to achieve the above objectives, this application provides the following technical solutions:

[0005] A power supply device, comprising: at least two battery power supply branches arranged in parallel, for supplying power to a load; each of the battery power supply branches comprises a battery switch for controlling the on and off of the battery power supply branch, and the battery switch comprises an operating handle for switching a switch state;

[0006] The power supply device further includes a limit structure corresponding to each of the battery switches, each of the limit structures includes a signal switch and a telescopic mechanism; all signal switches are connected by signal, and are used to connect or disconnect the power supply circuit of the corresponding telescopic mechanism; when the power supply circuit of the telescopic mechanism is connected, the telescopic rod of the telescopic mechanism limits the operating handle to make the battery switch in a closed state;

[0007] In the one-to-one corresponding battery switches and limit structures, the signal switch is connected to the battery switch signal. When the battery switch is in the disconnected state, the signal switch connects the power supply circuit of the telescopic mechanism in all other limit structures.

[0008] The power supply device includes a plurality of parallel battery power supply branches, each of which includes a one-to-one corresponding battery switch, a signal switch and a telescopic mechanism. By controlling the operating handle of the battery switch in a certain battery power supply branch to put it in a disconnected state, the power supply circuits of the telescopic mechanisms in all other battery power supply branches can be connected, and the telescopic rod limit operating handle in the corresponding telescopic mechanism can be controlled to prevent the battery switch from being disconnected, that is, the battery switches in all other battery power supply branches remain closed to keep supplying power to the load, thereby solving the problem that the battery is disconnected from the busbar and cannot supply power to the load.

[0009] Specifically, the power supply device includes at least two parallel battery power supply branches, both of which can supply power to the load, and each battery power supply branch includes a battery switch and a limit structure, and the battery switch and the limit structure correspond one to one. Among them, the battery switch includes an operating handle for switching the switch state, which can control the on and off of the battery power supply branch in which it is located. Under normal circumstances, the battery switch remains in a closed state, and the battery power supply branch is connected to the load and can supply power to the load. When the control operating handle switches the battery switch to a disconnected state, the battery power supply branch is not connected to the load and cannot supply power to the load. In order to ensure that the battery power supply branch always supplies power to the load, an embodiment of the present application provides a limit structure corresponding one to one to the battery switch, and the limit structure includes a signal switch and a telescopic mechanism. Among them, the signal switches in all battery power supply branches are connected in signal, and the signal switch and the telescopic mechanism in each battery power supply branch are electrically connected, so the signal switch can connect or disconnect the power supply circuit of the corresponding telescopic mechanism. The signal switch in each battery-powered branch is connected to the battery switch signal. When the battery switch in a battery-powered branch is in a disconnected state, the signal switch in the battery-powered branch is connected to the signal switches in all other battery-powered branches, that is, the power supply circuits of the telescopic mechanisms in all other battery-powered branches are connected. At this time, the telescopic rods of the telescopic mechanisms in all other battery-powered branches can limit the operating handles of the corresponding battery switches, lock the battery switches, and prevent them from being disconnected, so that the battery switches in all other battery-powered branches remain in a closed state. In other words, by disconnecting the battery switch in one battery-powered branch, the battery switches in all other battery-powered branches are closed, and the load can be powered all the time.

[0010] In some embodiments, all the limiting structures are connected to form a control circuit for connecting or disconnecting the power supply circuit of the corresponding telescopic mechanism.

[0011] In some embodiments, in each limiting structure, the signal switch includes a common contact end, a first contact end, and a second contact end, the first contact end is connected to a first electrode of a power supply, and the second contact end is connected to a second electrode of the power supply; the telescopic mechanism is connected in series between the first contact end and the first electrode;

[0012] All common contact terminals in all signal switches are electrically connected;

[0013] In the one-to-one corresponding battery switch and limit structure, when the battery switch is in an open state, the common contact end of the signal switch is connected to the second contact end; when the battery switch is in a closed state, the common contact end of the signal switch is connected to the first contact end.

[0014] In some embodiments, the telescopic mechanism is an electric push rod.

[0015] In some embodiments, the operating handle has a limiting hole that cooperates with the telescopic rod in the telescopic mechanism.

[0016] In some embodiments, the power supply device further includes a processor corresponding one-to-one to the battery switch;

[0017] In the one-to-one corresponding battery switch, processor and signal switch, the battery switch is connected to the signal switch signal through the processor.

[0018] In some embodiments, the signal switch is an electromagnetic signal switch.

[0019] In some embodiments, the telescopic mechanism includes a motor, and the motor is transmission-connected to the telescopic rod to drive the telescopic rod to extend into or out of the limiting hole.

[0020] In some embodiments, the power supply device further includes a rectifier module, and the rectifier module is arranged in parallel with the at least two battery power supply branches.

[0021] The present application also provides a power supply system, comprising a load and the power supply device, wherein an output end of the power supply device is electrically connected to the load. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the structure of a power supply device provided in an embodiment of the present application;

[0023] Figure 2 A schematic diagram of the structure of a power supply device provided in an embodiment of the present application after a battery switch is disconnected;

[0024] Figure 3 A schematic diagram of the structure of another power supply device provided in an embodiment of the present application;

[0025] Figure 4 A schematic diagram of the structure of another power supply device provided in an embodiment of the present application after a battery switch is disconnected;

[0026] Figure 5 A schematic diagram of the structure of a telescopic mechanism provided in an embodiment of the present application;

[0027] Figure 6 A schematic diagram of the structure of a power supply system provided in an embodiment of the present application;

[0028] Figure 7 A schematic diagram of the structure of another power supply system provided in an embodiment of the present application;

[0029] Icons: 1. Battery power supply branch; 2. Load; 3. Rectifier module; 11. Battery switch; 111. Operating handle; 1111. Limiting hole; 12. Limiting structure; 121. Signal switch; 122. Telescopic mechanism; 1221. Telescopic rod; a. Common contact terminal; b. First contact terminal; c. Second contact terminal. DETAILED DESCRIPTION

[0030] The following will combine the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application. Among them, in the description of the embodiments of the present application, unless otherwise specified, " / " means or, for example, A / B can mean A or B; "and / or" in the text is only a description of the association relationship of associated objects, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of the present application, "multiple" refers to two or more than two.

[0031] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as suggesting or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features, and in the description of the embodiments of the present application, unless otherwise specified, "plurality" means two or more.

[0032] First, as Figure 1-Figure 7 As shown, an embodiment of the present application provides a power supply device, comprising: at least two battery power supply branches 1 arranged in parallel, for supplying power to a load 2; each battery power supply branch 1 comprises a battery switch 11 for controlling the on / off of the battery power supply branch, and the battery switch 11 comprises an operating handle 111 for switching a switch state;

[0033] The power supply device also includes a limiting structure 12 corresponding to the battery switch 11 one by one, and each limiting structure 12 includes a signal switch 121 and a telescopic mechanism 122; all signal switches 121 are signal-connected, and are used to connect or disconnect the power supply circuit of the corresponding telescopic mechanism 122; when the power supply circuit of the telescopic mechanism 122 is connected, the telescopic rod 1221 of the telescopic mechanism 122 limits the operating handle 111 to put the battery switch 11 in a closed state;

[0034] In the one-to-one corresponding battery switches 11 and limiting structures 12 , the signal switch 121 is signal-connected to the battery switch 11 . When the battery switch 11 is in the disconnected state, the signal switch 121 connects the power supply circuits of the telescopic mechanisms 122 in all other limiting structures 12 .

[0035] The power supply device includes a plurality of parallel battery power supply branches 1, each of which includes a one-to-one corresponding battery switch 11, a signal switch 121 and a telescopic mechanism 122. By controlling the operating handle 111 of the battery switch 11 in a certain battery power supply branch 1 to be in a disconnected state, the power supply circuits of the telescopic mechanisms 122 in all other battery power supply branches 1 can be connected, and the telescopic rod 1221 in the corresponding telescopic mechanism 122 is controlled to limit the operating handle 111 so that the battery switch 11 cannot be disconnected, that is, the battery switches 11 in all other battery power supply branches 1 remain closed and keep supplying power to the load 2, thereby solving the problem that the battery is disconnected from the busbar and cannot supply power to the load 2.

[0036] Specifically, refer to Figure 1 , Figure 1 It includes two parallel battery power supply branches 1, both of which can supply power to the load 2. Each battery power supply branch 1 includes a battery switch 11 and a limit structure 12, and the battery switch 11 and the limit structure 12 correspond one to one. Among them, the battery switch 11 includes an operating handle 111 for switching the switch state, which can control the on and off of the battery power supply branch 1 in which it is located. Under normal circumstances, the battery switch 11 remains in a closed state, and the battery power supply branch 1 is connected to the load 2 and can supply power to the load 2. When the control operating handle 111 switches the battery switch 11 to a disconnected state, the battery power supply branch 1 is not connected to the load 2 and cannot supply power to the load 2. In order to ensure that the battery power supply branch 1 always supplies power to the load 2, the embodiment of the present application provides a limit structure 12 corresponding one to one with the battery switch 11, and the limit structure 12 includes a signal switch 121 and a telescopic mechanism 122. Among them, the signal switches 121 in all battery power supply branches 1 are connected by signals, and the signal switch 121 in each battery power supply branch 1 is electrically connected to the telescopic mechanism 122, so the signal switch 121 can connect or disconnect the power supply circuit of the corresponding telescopic mechanism 122. The signal switch 121 in each battery power supply branch 1 is connected by signals to the battery switch 11. Figure 2When the battery switch 11 in a certain battery power supply branch 1 is in the disconnected state, the signal switch 121 in the battery power supply branch 1 is connected to the signal switches 121 in all other battery power supply branches 1, that is, the power supply circuits of the telescopic mechanisms 122 in all other battery power supply branches 1 are connected. At this time, the telescopic rods 1221 of the telescopic mechanisms 122 in all other battery power supply branches 1 can limit the operating handles 111 of the corresponding battery switches 11, lock the battery switches 11, and prevent them from being disconnected, so that the battery switches 11 in all other battery power supply branches 1 remain in the closed state. In other words, when the battery switch 11 in one battery power supply branch 1 is disconnected, the battery switches 11 in all other battery power supply branches 1 are closed, and the load 2 can be powered all the time.

[0037] It should be noted that, refer to Figure 3 and Figure 4 The power supply device in the embodiment of the present application may also include n parallel battery power supply branches 1. For example, the battery power supply branches 1 may be 3, 4, 5, 6...n. Similarly, by disconnecting the battery switch 11 in one of the battery power supply branches 1 and closing the battery switches 11 in all other battery power supply branches 1, the load 2 can be powered all the time.

[0038] In some embodiments, all the limiting structures 12 are connected to form a control circuit for connecting or disconnecting the power supply circuit of the corresponding telescopic mechanism 122 .

[0039] In one possible implementation, refer to Figure 1 The limiting structures 12 in all battery power supply branches 1 are electrically connected to form a control circuit, and the power supply circuit of the telescopic mechanism 122 is turned on and off through the signal switch in each battery power supply branch 1, thereby controlling the relative position of the telescopic rod 1221 in the telescopic mechanism 122 and the operating handle 111 of the battery switch 11, so that there is always a battery power supply branch 1 to power the load 2.

[0040] In some embodiments, in each limiting structure 12, the signal switch 121 includes a common contact terminal a, a first contact terminal b and a second contact terminal c, the first contact terminal b is connected to the first electrode of the power supply, and the second contact terminal c is connected to the second electrode of the power supply; the telescopic mechanism 122 is connected in series between the first contact terminal b and the first electrode;

[0041] All common contact terminals a in all signal switches 121 are electrically connected;

[0042] In the one-to-one corresponding battery switch 11 and limit structure 12, when the battery switch 11 is in the disconnected state, the common contact terminal a of the signal switch 121 is connected to the second contact terminal c; when the battery switch 11 is in the closed state, the common contact terminal a of the signal switch 121 is connected to the first contact terminal b.

[0043] In one possible implementation, refer to Figure 2 , because the battery switch 11 in the same battery power supply branch 1 is connected to the corresponding signal switch 121 by signal, when the operating handle 111 is controlled to make the battery switch 11 in the disconnected state, the moving contact of the corresponding signal switch 121 will switch from the first contact end b to the second contact end c, while the moving contacts in all other battery power supply branches 1 are still at the first contact end b. At this time, due to the change in the state of the signal switch 121 in one battery power supply branch 1, the signal switches 121 in all other battery power supply branches 1 will be energized, and the power supply circuits of all other telescopic mechanisms 122 will be connected. Then, the telescopic rod 1221 in the telescopic mechanism 122 will extend and limit the operating handle 111 of the battery switch 11, so that all other battery switches 11 cannot be disconnected, that is, they remain in the closed state and continue to supply power to the load 2.

[0044] In some embodiments, the telescopic mechanism 122 is an electric push rod.

[0045] In some embodiments, the operating handle 111 has a limiting hole 1111 that cooperates with the telescopic rod 1221 in the telescopic mechanism 122 .

[0046] In one possible implementation, refer to Figure 5 In a normal state, the telescopic rod 1221 is in the original position, that is, the position where the telescopic mechanism 122 is not extended. When the power supply circuit of the telescopic mechanism 122 is connected, the corresponding telescopic rod 1221 will extend into the limit hole 1111 of the operating handle 111, forming a limit on the operating handle 111 of the battery switch 11, that is, the switch state of the battery switch 11 cannot be switched, so that the battery power supply branch 1 where the battery switch 11 is located always supplies power to the load 2.

[0047] In some embodiments, the power supply device further includes a processor corresponding one-to-one to the battery switch 11;

[0048] Among the one-to-one correspondence between the battery switch 11 , the processor and the signal switch 121 , the battery switch 11 is signal-connected to the signal switch 121 through the processor.

[0049] When the battery switch 11 switches from a closed state to an open state, the processor sends a switching signal of the battery switch 11 to the signal switch 121, and the signal switch 121 switches between the first contact terminal b and the second contact terminal c according to the received signal.

[0050] In some embodiments, the signal switch 121 is an electromagnetic signal switch. When the battery switch 11 is switched on and off, the electromagnet in the signal switch 121 senses the change in current and then mechanically moves, thereby changing the switching of the moving contact between the first contact terminal b and the second contact terminal c.

[0051] In some embodiments, the telescopic mechanism 122 includes a motor, which is transmission-connected to the telescopic rod 1221 and is used to drive the telescopic rod 1221 to extend into or out of the limit hole 1111 to limit the operating handle 111 of the battery switch 11, so that the battery switch 11 remains in a closed state, thereby allowing the battery power supply branch 1 in which it is located to continue to supply power to the load 2.

[0052] In some embodiments, reference Figure 6 and Figure 7 The power supply device further includes a rectifier module 3, which is arranged in parallel with at least two battery power supply branches 1. The rectifier module 3 is used to convert AC power into DC power. For example, the input end of the rectifier module can be connected to the mains, and the mains converts AC power into DC power through the rectifier module 3, thereby realizing the DC output of the power supply device.

[0053] In a second aspect, the present application also provides a power supply system, referring to Figure 6 and Figure 7 The power supply system includes a load 2 and a power supply device of the first aspect, wherein an output end of the power supply device is electrically connected to the load 2 to supply power to the load 2.

[0054] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A power supply device, characterized in that: include: At least two battery power supply branches arranged in parallel are used to supply power to the load; each of the battery power supply branches includes a battery switch for controlling the on and off of the battery power supply branch, and the battery switch includes an operating handle for switching the switch state; The power supply device further includes a limit structure corresponding to each of the battery switches, each of the limit structures includes a signal switch and a telescopic mechanism; all signal switches are connected by signal, and are used to connect or disconnect the power supply circuit of the corresponding telescopic mechanism; when the power supply circuit of the telescopic mechanism is connected, the telescopic rod of the telescopic mechanism limits the operating handle to make the battery switch in a closed state; In the one-to-one corresponding battery switches and limit structures, the signal switch is connected to the battery switch signal. When the battery switch is in the disconnected state, the signal switch connects the power supply circuit of the telescopic mechanism in all other limit structures.

2. The power supply device according to claim 1, characterized in that: All the limit structures are connected to form a control circuit, which is used to connect or disconnect the power supply circuit of the corresponding telescopic mechanism.

3. The power supply device according to claim 1, characterized in that: In each limit structure, the signal switch includes a common contact end, a first contact end and a second contact end, the first contact end is connected to the first electrode of the power supply, and the second contact end is connected to the second electrode of the power supply; the telescopic mechanism is connected in series between the first contact end and the first electrode; All common contact terminals in all signal switches are electrically connected; In the one-to-one corresponding battery switch and limit structure, when the battery switch is in an open state, the common contact end of the signal switch is connected to the second contact end; when the battery switch is in a closed state, the common contact end of the signal switch is connected to the first contact end.

4. The power supply device according to claim 1, characterized in that: The telescopic mechanism is an electric push rod.

5. The power supply device according to claim 1, characterized in that: The operating handle has a limiting hole matched with the telescopic rod in the telescopic mechanism.

6. The power supply device according to claim 1, characterized in that: The power supply device also includes a processor corresponding one-to-one to the battery switches; In the one-to-one corresponding battery switch, processor and signal switch, the battery switch is connected to the signal switch signal through the processor.

7. The power supply device according to claim 5, characterized in that: The telescopic mechanism also includes a motor, which is transmission-connected to the telescopic rod and is used to drive the telescopic rod to extend into or out of the limiting hole.

8. The power supply device according to claim 1, characterized in that: The signal switch is an electromagnetic signal switch.

9. The power supply device according to claim 1, characterized in that: The power supply device further comprises a rectifier module, and the rectifier module is arranged in parallel with the at least two battery power supply branches.

10. A power supply system, characterized in that: The invention comprises a load and a power supply device as claimed in any one of claims 1 to 9, wherein an output end of the power supply device is electrically connected to the load.

Images