control unit

Abstract

The utility model relates to a control unit, it has: electronic control device, switch, switch on and off of power of electronic control device, ground bus, with electronic control device electricity is connected, and protection panel, cover ground bus, protection panel constitutes under by switch the power is set to off the case can dismantle. Adopt the utility model, can effectively protect ground bus.

Description

Technical Field

[0001] This utility model relates to a control unit. Background Technology

[0002] Large currents flow into the grounding busbar of the control unit that controls the power supply; therefore, it is necessary to effectively protect the grounding busbar to ensure the safety of users who inspect or remove it. For example, International Publication No. 2020 / 189659 discloses a device having a busbar welded to the electrode terminals of at least one energy storage element in a plurality of battery cells and a covering member covering the busbar.

[0003] For control units that control power, there is a continuous requirement for effective protection of the grounding busbar. Utility Model Content

[0004] This utility model was developed in view of the above background, and its purpose is to provide a control unit that can effectively protect the grounding busbar.

[0005] The control unit involved in this utility model includes: an electronic control device; a switch for switching the power supply of the electronic control device on and off; a grounding busbar electrically connected to the electronic control device; and a protective panel covering the grounding busbar, the protective panel being detachable when the power supply is set to off by the switch.

[0006] The control unit of this invention has a protective panel covering the grounding busbar, which is designed to be detachable only when the power is disconnected, thus effectively protecting the grounding busbar. This prevents users from contacting the grounding busbar carrying a large current, ensuring the safety of users performing inspections and removals of the grounding busbar.

[0007] The control unit of this utility model may also include: a switch box, which houses the switch and is capable of opening and closing; and a special tool, housed together with the switch in the switch box, for removing the protective panel.

[0008] In this invention, the special tool can be disassembled when the power supply is turned off by the switch.

[0009] The control unit of this utility model may also have an alarm device, which outputs an alarm when the user touches the protection panel when the power is set to be on by the switch.

[0010] In this invention, the electronic control device controls the power supply from the collector unit to the power conversion device, and the collector unit collects the power stored by multiple energy storage devices.

[0011] According to this utility model, a control unit that can effectively protect the grounding busbar can be provided. Attached Figure Description

[0012] Figure 1 This is a diagram illustrating an example of the configuration of a power supply system for a control unit involved in this utility model.

[0013] Figure 2 This is a schematic diagram of the housing of the control unit involved in this utility model, viewed from the front.

[0014] Figure 3 This is a partial schematic cross-sectional view of the housing of the control unit involved in this utility model.

[0015] Figure 4 This is a schematic diagram of a modified example of the housing of the control unit of this utility model, viewed from the front.

[0016] Figure 5 It is housed in Figure 4 A schematic diagram of the switch box and its contents in the control unit shown. Detailed Implementation

[0017] The following is a reference to the appendix. Figure 1 The following describes in detail the specific embodiments of this utility model. However, this utility model is not limited to the following embodiments. In addition, for the sake of clarity, the following description and drawings have been appropriately simplified.

[0018] Figure 1 This diagram illustrates an example of the configuration of a power supply system 1 incorporating the control unit 20 according to this invention. Figure 1 As shown, the power supply system 1 includes: a current collection unit 10, a control unit 20, multiple energy storage devices, and a power conversion device 40. In this invention, the power supply system 1 with eight energy storage devices will be used as an example. The eight energy storage devices will be referred to as energy storage devices 30_1, 30_2…30_8.

[0019] in addition, Figure 1 The right-handed XYZ orthogonal coordinate system shown is useful for illustrating the positional relationships of the constituent elements. In Figure 1 In the figures, for example, the Z direction is the vertical direction, the XY plane is the horizontal plane, and the X, Y, and Z directions are the same.

[0020] The current collector unit 10 collects the electricity stored in the energy storage devices 30_1, 30_2...30_8 via current collector cables C1, C2...C8. The electricity collected by the current collector unit 10 is then supplied to the power conversion device 40 via the power supply cable W1. The control unit 20 controls the supply of electricity collected by the current collector unit 10 to the power conversion device 40. The power conversion device 40 converts the voltage of the electricity supplied from the current collector unit 10 to other voltage levels, or converts DC voltage to AC voltage.

[0021] Figure 2 This is a schematic diagram of the containment of the control unit 20 involved in this utility model, viewed from the front. Figure 3 This is a partial schematic cross-sectional view of the housing of the control unit 20 of this utility model. Additionally, Figure 3 It shows Figure 2 The container A of the control unit 20 shown Section A.

[0022] Inside the control unit 20 (within the housing) are an electronic control device 201, a switch 202, a grounding busbar 204, a cable 205, a protective panel 206, a fastener 207, and a plate 209.

[0023] An electronic control device 201 is mounted on a board 209 within the control unit 20 and controls the supply of electricity collected by the collector unit 10 to the power conversion device 40. For example, the electronic control device 201 switches between the presence and absence of the supply of electricity collected by the collector unit 10 to the power conversion device 40, or adjusts the amount of electricity supplied by the collector unit 10 to the power conversion device 40.

[0024] The grounding voltage terminal of the electronic control device 201 is connected to the grounding busbar 204 via cable 205. The grounding busbar 204 is mounted on a support platform 210 mounted on a plate 209. The grounding busbar 204 and cable 205 are secured by fasteners 211. The grounding busbar 204 is grounded, for example, indicating 0V. The electronic control device 201 operates based on the potential of the grounding busbar 204.

[0025] To prevent users from accidentally touching the grounding busbar 204, which carries a large current, the protection panel 206 is designed to cover the grounding busbar 204. Figure 2 and Figure 3 In this example, the protective panel 206 is secured to the plate 209 by fasteners 207 and is configured to cover the lower and main surfaces of the support platform 210 and the grounding busbar 204. Additionally, the upper surfaces of the support platform 210 and the grounding busbar 204 are open to allow the cable 205 to pass through. However, the shape of the protective panel 206 is not limited to this. Figure 2 and Figure 3 The shape shown is sufficient as long as it covers the grounding busbar 204.

[0026] The grounding busbar 204 is a metal, plate-shaped component. For example, the grounding busbar 204 may be made of copper, brass (copper alloy), or aluminum. The support platform 210 is formed of insulating components to prevent the current flowing through the grounding busbar 204 from leaking to the plate 209 side.

[0027] Switch 202 toggles the power supply to / from the electronic control device 201. For example, switch 202 toggles whether the electronic control device 201 is connected to or disconnected from the grounding bus 204. For instance, if switch 202 is turned on, the electronic control device 201 is electrically connected to the grounding bus 204, and the power supply to the electronic control device 201 is on. Conversely, if switch 202 is turned off, the power supply to the electronic control device 201 is disconnected from the grounding bus 204. When the power supply is set to off via switch 202, no large current flows through the grounding bus 204. Therefore, when the power supply is set to off via switch 202, the user can safely inspect or remove the grounding bus 204.

[0028] Here, the protective panel 206 is configured to be removable when the power is turned off via the switch 202. For example, the protective panel 206 is configured such that the fastener 207 can be loosened when the power is turned off via the switch 202. An alarm device may also be provided so that if the user attempts to remove or touch the protective panel 206 when the power is turned on via the switch 202, the alarm device detects this and sounds an alarm.

[0029] Thus, the control unit 20 of this invention has a protective panel 206 covering the grounding busbar 204. This protective panel 206 is configured to be removable only when the power is set to disconnect via the switch 202, thereby ensuring the safety of the user performing the inspection and removal of the grounding busbar 204. Accordingly, it is possible to prevent the user from contacting the grounding busbar through which a large current is flowing, thus ensuring the safety of the user performing the inspection and removal of the grounding busbar 204.

[0030] Next, a modified example of the contents of the control unit 20 will be described.

[0031] Figure 4 This is a schematic diagram of a modified example of the containment of the control unit 20 of this utility model, viewed from the front. Figure 5 It is housed in Figure 4 A schematic perspective view of the switch box and its contents in the control unit 20 shown.

[0032] exist Figure 4 and Figure 5The control unit 20 shown also houses a switch box 203 and a special tool 208. The switch box 203 is openable and closeable, housing the switch 202 and the special tool 208. The special tool 208 is used to remove the protective panel 206. For example, the special tool 208 is a wrench or similar tool used to loosen fasteners 207, such as bolts and nuts.

[0033] For example, when a user inspects and removes the grounding busbar 204, they need to open the door of the switch box 203 to obtain a special tool 208 for removing the protection panel 206. Here, if the door of the switch box 203 is opened, not only is the special tool 208 installed inside the switch box 203, but a switch 202 is also installed. Therefore, it can prevent the user from forgetting to disconnect the switch 202 before removing the protection panel 206. Furthermore, the special tool 208 can also be configured to be removed even when the power supply is set to off via the switch 202. Thus, it can reliably prevent the user from forgetting to disconnect the switch 202 before removing the protection panel 206.

[0034] As described above, the control unit 20 of this invention has a protective panel 206 covering the grounding busbar 204. This protective panel 206 is configured to be detachable only when the power is set to be off via the switch 202, thus effectively protecting the grounding busbar 204. Accordingly, it is possible to prevent users from contacting the grounding busbar through which a large current is flowing, thereby ensuring the safety of users performing inspections and removals of the grounding busbar 204.

[0035] The present invention has been described above with reference to the embodiments described herein, but the present invention is not limited to the above embodiments. Those skilled in the art can make various modifications to the structure and details of the present invention within the scope of its spirit. Each embodiment can be appropriately combined with other embodiments.

Claims

1. A control unit, characterized by having: an electronic control device; a switch that switches on and off a power supply of the electronic control device; a ground bus that is electrically connected to the electronic control device; and a protection panel that covers the ground bus, the protection panel being configured to be detachable in a case where the power supply is set to off by the switch.

2. The control unit according to claim 1, characterized by further having: a switch box that houses the switch and is openable and closable; and a special tool that is housed in the switch box together with the switch and is used to detach the protection panel.

3. The control unit according to claim 2, characterized in that the special tool is provided to be detachable in a case where the power supply is set to off by the switch.

4. The control unit according to claim 1, characterized by further having an alarm device that outputs an alarm in a case where a user is detected to contact the protection panel in a state where the power supply is set to on by the switch.

5. The control unit according to claim 1, characterized in that the electronic control device controls power supply from a power collection unit to a power conversion device, the power collection unit collects electric power accumulated by a plurality of power storage devices. ​ ​

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