Terminal hidden type high-voltage control box structure and energy storage device

Abstract

The utility model discloses a terminal hidden type high-voltage control box structure and an energy storage device, and relates to the technical field of energy storage equipment, the control box structure comprises a box body, the box body comprises a panel provided with a concave part, the panel in the concave part is provided with a plurality of terminals, and the panel is provided with a shielding plate which covers the concave part and shields the terminals; the wiring holes are communicated with the outside of the box body and are formed in at least one side of the peripheral side of the concave part and / or the baffle plate. According to the invention, the terminal can be hidden in the recessed part, wiring is completed in the recessed part, no terminal or wire harness is ensured to be arranged on the appearance surface of the box body, personnel are prevented from touching the terminal by mistake, and the overall aesthetic property and neatness of the box body are improved.

Description

Technical Field

[0001] The present application relates to the technical field of energy storage equipment, and in particular to a terminal-hidden high-voltage control box structure and an energy storage device. Background Art

[0002] In the construction of electrochemical energy storage power stations, containers are typically used as battery compartments. The units within each compartment are organized by stack and cluster numbers, with each cluster consisting of several battery packs and a high-voltage control box. The high-voltage control box is a crucial core component in the energy storage system, enabling charge and discharge control, protection, and monitoring.

[0003] In the related art, a high-voltage control box is provided with a variety of terminals, such as terminals for external communication, power terminals connected to a battery junction box, and AC power supply terminals required internally. These terminals are directly exposed on the outer panel of the control box and are easily damaged during transportation. In addition, for some exposed terminals, improper operation may pose certain risks.

[0004] Therefore, in response to the above technical problems, how to provide a safe and reliable high-voltage control box structure is a technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0005] The purpose of this application is to provide a terminal-hidden high-voltage control box structure and energy storage device, which can hide the terminals in the recessed part and complete the wiring in the recessed part, ensuring that there are no terminals or wiring harnesses on the outer surface of the box, preventing people from accidentally touching the terminals, and improving the overall aesthetics and neatness of the box.

[0006] To achieve the above-mentioned object, the present application provides a terminal-hidden high-voltage control box structure, comprising a box body, the box body comprising a panel with a recessed portion, a plurality of terminals being provided on the panel within the recessed portion, and a shielding plate being provided on the panel to cover the recessed portion and shield the terminals;

[0007] It also includes a wiring hole connected to the outside of the box body, and the wiring hole is arranged on at least one side of the periphery of the recessed portion and / or on the shielding plate.

[0008] Preferably, the recessed portion includes a first recessed portion and a second recessed portion, the shielding plate includes a first shielding plate cooperating with the first recessed portion and a second shielding plate cooperating with the second recessed portion, the terminal includes a communication terminal, a battery output terminal and a battery negative input terminal arranged in the first recessed portion, and the terminal also includes a battery positive input terminal arranged in the second recessed portion.

[0009] Preferably, the wiring hole includes a first wiring hole arranged on one side of the first recessed portion and a second wiring hole arranged on the other side of the first recessed portion, the battery output terminal is arranged in the first recessed portion close to one side of the first wiring hole, and the communication terminal is arranged in the first recessed portion close to one side of the second wiring hole.

[0010] Preferably, the wiring hole further includes a third wiring hole provided on the first shielding plate, the negative electrode input terminal of the battery is connected to a negative electrode copper busbar, and the negative electrode copper busbar is connected to the negative electrode of the battery pack through the third wiring hole.

[0011] Preferably, a handle avoidance hole is provided on the upper side of the first baffle plate, and the handle is installed on the box body through the handle avoidance hole. The wiring hole also includes a fifth wiring hole provided on the lower side of the first baffle plate, and the fifth wiring hole is used for AC terminal wiring. The third wiring hole and the fifth wiring hole are arranged at intervals.

[0012] Preferably, the first wiring hole is arranged on the upper side of the first recessed portion, the second wiring hole is arranged on the left or right side of the first recessed portion, the third wiring hole is arranged on the lower side of the first shielding plate, and the battery pack is located on the lower side of the third wiring hole.

[0013] Preferably, the wiring hole includes a fourth wiring hole provided on one side of the second recessed portion, the battery positive input terminal is connected to a positive copper busbar, and the positive copper busbar is connected to the positive electrode of the battery pack through the fourth wiring hole.

[0014] Preferably, a protective coil is provided in the inner circle of the wiring hole, and a wire buckle for bundling the wire harness is provided in the recessed portion.

[0015] Preferably, the shielding plate is detachably provided at the recessed portion.

[0016] An energy storage device includes a plurality of battery packs and the terminal-hidden high-voltage control box structure as described above.

[0017] Compared to the above-mentioned background technology, the present application provides a recessed portion on the panel of the box, and the terminal is arranged in the recessed portion. The terminal is hidden by a shielding plate provided at the corresponding position of the recessed portion, which greatly improves the safety of the terminal. At the same time, it can prevent the terminal from being damaged during transportation and avoid the danger caused by the operator accidentally touching the terminal. The surrounding side of the recessed portion and / or the shielding plate are provided with routing holes connected to the outside of the box, so that the wiring harness can be routed in the recessed portion. Similarly, the wiring harness, copper busbar and other connectors can be hidden, ensuring that there are no wiring harness, copper busbar and other connectors on the exterior surface of the box, thereby improving the overall aesthetics and neatness of the box. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without any creative work.

[0019] Figure 1 This is a schematic diagram of the structure of a terminal-hidden high-voltage control box provided in an embodiment of the present application;

[0020] Figure 2 A three-dimensional schematic diagram of the matching structure of the shielding plate and the recessed portion provided in an embodiment of the present application;

[0021] Figure 3 This is a schematic diagram of the wiring structure of the terminal-hidden high-voltage control box provided in an embodiment of the present application;

[0022] Figure 4 A schematic diagram of the three-dimensional structure of the energy storage device provided in an embodiment of the present application;

[0023] Figure 5 for Figure 4 Schematic diagram of the partially enlarged structure.

[0024] In the figure: 1- box; 2- battery pack;

[0025] 11-panel; 12-recessed portion; 13-terminal; 14-cabling hole; 15-shielding plate; 16-cable buckle; 17-negative copper busbar; 18-positive copper busbar; 19-handle avoidance hole;

[0026] 111-indicator light; 112-handle; 113-hanging ear; 114-circuit breaker;

[0027] 121-first recessed portion; 122-second recessed portion;

[0028] 131 - battery output terminal; 132 - communication terminal; 133 - battery negative input terminal; 134 - battery positive input terminal; 135 - AC power supply terminal;

[0029] 141-first wiring hole; 142-second wiring hole; 143-third wiring hole; 144-fourth wiring hole; 145-fifth wiring hole;

[0030] 151 - first shielding plate; 152 - second shielding plate; 153 - captive thumb screw. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0032] It should be noted that in this embodiment, the directions or positional relationships indicated by "upper," "lower," "front," and "back" are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this application and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction. Therefore, they should not be construed as limitations on this application. Furthermore, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0034] Please refer to Figure 1 In this embodiment, a terminal-hidden high-voltage control box structure is provided, comprising a box body 1, provided with panels 11 forming the outer shell of the box body 1. For a conventional square box body 1, there are six panels 11, corresponding to the six sides of the box body 1. A recessed portion 12 is provided on the panels 11. The recessed portion 12 is typically located on the front panel 11 of the box body 1 to facilitate operation and maintenance. However, the recessed portion 12 can also be located on other side panels 11, and this is not a limitation here.

[0035] In some embodiments, a plurality of terminals are provided on the panel 11 in the recessed portion 12. Since the terminal 13 is placed in the recessed portion 12, its end portion should also be located inside the recessed portion 12, so that the terminal 13 is hidden with the cooperation of the shielding plate 15. Specifically, the panel 11 is provided with a shielding plate 15 that covers the recessed portion 12 and shields the terminal 13. Figure 2 The terminal 13 is covered in the recessed portion 12 so that the outer surface of the box body 1 does not have the terminal 13, thereby improving the overall aesthetics and neatness of the box body 1, avoiding accidental damage to the terminal 13 during transportation, and avoiding safety hazards caused by personnel accidentally touching the terminal 13.

[0036] Taking into account that the terminals 13 in the recessed portion 12 need to achieve signal connection and electrical connection through connectors such as wiring harnesses and copper busbars, wiring holes 14 connected to the outside of the box body 1 are provided on the peripheral side of the recessed portion 12, or / and wiring holes 14 connected to the outside of the box body 1 are provided on the baffle plate 15; according to the specific distribution position of the terminals 13 and the wiring method of the terminals 13, the position of the wiring holes 14 can be selectively determined to ensure that the high-voltage control box can be wired and used normally.

[0037] In summary of the above embodiments, the present application provides a recessed portion 12 on the panel 11 of the box 1, and the terminal 13 is provided in the recessed portion 12. The terminal 13 is hidden by a shielding plate 15 provided at a position corresponding to the recessed portion 12, which greatly improves the safety of the terminal 13. At the same time, it can prevent the terminal 13 from being damaged during transportation and avoid the danger caused by the operator accidentally touching the terminal 13. The peripheral side of the recessed portion 12 and / or the shielding plate 15 are provided with a wiring hole 14 connected to the outside of the box 1, so that the wiring harness can be routed in the recessed portion 12. Similarly, the wiring harness, copper busbar and other connectors can be hidden, ensuring that there are no wiring harness, copper busbar and other connectors on the exterior surface of the box 1, thereby improving the overall aesthetics and neatness of the box 1.

[0038] Please refer to Figure 1 Considering that there are many types of terminals 13, such as communication terminals 132, power terminals, etc., the recessed portion 12 is set as a first recessed portion 121 and a second recessed portion 122 according to the type of terminal 13 and the different types of wiring harnesses connected to the terminal 13. Of course, the number of recessed portions 12 here includes but is not limited to two, and can be set according to actual conditions. On this basis, the shielding plate 15 includes a first shielding plate 151 that cooperates with the first recessed portion 121 and a second shielding plate 152 that cooperates with the second recessed portion 122. The first shielding plate 151 and the second shielding plate 152 can be connected as a whole or set separately. There are no excessive restrictions here, and it is sufficient to ensure that they can correspond to the two recessed portions 12.

[0039] The terminals 13 include a communication terminal 132, a battery output terminal 131, and a battery negative input terminal 133, all located within the first recess 121, and a battery positive input terminal 134, all located within the second recess 122. Generally speaking, the communication terminal 132 is typically connected to other components via a communication line, while the battery output terminal 131, the battery negative input terminal 133, and the battery positive input terminal 134 are connected to other components via a power line. To prevent the communication lines and power lines from intersecting and interfering with the communication signals, the first recess 121 can be provided with a plurality of routing holes 14, allowing the communication lines and power lines to be routed separately, thereby overcoming the problem of cross-interference.

[0040] Specifically, the wiring hole 14 includes a first wiring hole 141 provided on one side of the first recessed portion 121 and a second wiring hole 142 provided on the other side of the first recessed portion 121. Figure 1 The battery output terminal 131 is arranged in the first recessed portion 121 on the side close to the first wiring hole 141, and the communication terminal 132 is arranged in the first recessed portion 121 on the side close to the second wiring hole 142; thereby, the battery output terminal 131 can be routed directly through the first wiring hole 141, and the communication terminal 132 can be routed directly through the second wiring hole 142, avoiding the communication line and the power line from crossing.

[0041] It should be noted that for the above-mentioned recessed portion 12, the recessed depth needs to ensure that the terminal 13 inside it can be installed normally, and ensure that there is enough space for the connection between the wiring harness and the terminal 13, and sufficient turning space needs to be reserved for the internal wiring harness.

[0042] In addition, the wiring hole 14 further includes a third wiring hole 143 provided on the first shielding plate 151. For details, please refer to Figure 2 Since the battery pack 2 is separated from the box body 1 and is usually located on the peripheral side of the box body 1, it is necessary to open a third wiring hole 143 on the first shielding plate 151 or on the other side of the first recessed portion 121. The negative input terminal 133 of the battery is connected to the negative copper bus 17. Please refer to Figure 5 The negative copper bus 17 is connected to the negative electrode of the battery pack 2 through the third wiring hole 143 .

[0043] In some embodiments, depending on the position of the battery pack 2 relative to the box body 1, the third wiring hole 143 can be set near the side of the battery pack 2 to facilitate the connection of the negative copper bus 17 to the battery pack 2 through the third wiring hole 143. For example, when the battery pack 2 is located at the bottom of the box body 1, please refer to Figure 1 and Figure 2 , the third wiring hole 143 can be set on the lower side of the first shielding plate 151, and the first wiring hole 141 can be set on the upper side of the first recessed portion 121 accordingly, and the second wiring hole 142 can be set on the left or right side of the first recessed portion 121, thereby avoiding the communication line and the power line from being crossed. It should be pointed out that when the first recessed portion 121 is located on the left side of the panel 11, the second wiring hole 142 can be set on the left side of the first recessed portion 121, thereby ensuring that the wiring harness can extend outside the box body 1 through the second wiring hole 142; similarly, when the first recessed portion 121 is located on the right side of the panel 11, the second wiring hole 142 can be set on the right side of the first recessed portion 121 accordingly.

[0044] In addition, the wiring hole 14 also includes a fourth wiring hole 144 provided on one side of the second recessed portion 122. The battery positive input terminal 134 is connected to the positive copper bus 18. The positive copper bus 18 extends out of the battery rack through the fourth wiring hole 144 and is connected to the positive pole at the far end of the battery pack 2. The multiple batteries between the battery packs 2 are connected in series in sequence.

[0045] A protective ring can be set in the inner circle of some wiring holes 14 to ensure that the subsequent wiring harness will not be cut. A wire buckle 16 for bundling the wiring harness is provided in the recessed portion 12. For details, please refer to Figure 3 , used to bundle the wire harness to ensure that there is no great stress during subsequent external winding, and to ensure the neatness and stability of the wiring inside the recessed portion 12.

[0046] The baffle plate 15 is detachably mounted in the recessed portion 12, facilitating the installation of the terminals 13 and the connection of the wiring harness, as well as facilitating maintenance. For example, the baffle plate 15 can be connected to the panel 11 using captive thumb screws 153. The captive thumb screws 153 can be positioned differently on both sides. For example, captive thumb screws 153 can be provided on both sides of the baffle plate 15, but the captive thumb screws 153 on both sides can be asymmetrically positioned. This provides the baffle plate 15 with a foolproof function, preventing the problem of misalignment of the outgoing wire assembly during subsequent assembly. After the wiring harness and the terminals 13 are connected, the baffle plate 15 can be installed, achieving an aesthetically pleasing and neat panel 11 of the high-voltage control box.

[0047] Components such as a circuit breaker 114, an indicator light 111, an AC power supply terminal 135, a hanging ear 113, and a handle 112 may also be provided on the box 1 or its panel 11. Figure 2 A handle avoidance hole 19 is also provided on the upper side of the first baffle plate 151 to facilitate installation of the handle 112 on the box body 1. A fifth wiring hole 145 is provided on the lower side of the first baffle plate 151. The wiring harness of the AC power supply terminal 135 for accessing the AC power can be routed through the fifth wiring hole 145, and the control, protection, isolation and remote control of the AC power can be achieved through the circuit breaker 114. The third wiring hole 143 and the fifth wiring hole 145 are arranged at intervals to avoid mutual interference between AC and DC. At the same time, wire guard teeth can be provided on the fifth wiring hole to protect the wiring harness; the box body 1 can be fixedly mounted on the battery rack through the hanging ear 113, and the box body 1 can be conveniently taken on and placed on the battery rack through the handle 112; the indicator light 111 can display different working states of the box body 1, etc.; of course, including but not limited to the arrangement of the above-mentioned components, other components can also be arranged according to actual conditions, which will not be described in detail here.

[0048] This application also provides an energy storage device, please refer to Figure 4 The energy storage device includes several battery packs 2 and a high-voltage control box structure, and the high-voltage control box structure is the above-mentioned terminal 1 hidden high-voltage control box structure.

[0049] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0050] This document uses specific examples to illustrate the principles and implementation methods of this application. The description of the above examples is only intended to help understand the method and core ideas of this application. It should be noted that for those skilled in the art, without departing from the principles of this application, various improvements and modifications can be made to this application, and such improvements and modifications also fall within the scope of protection of the claims of this application.

Claims

1. A terminal hidden high voltage control box structure, comprising a box body (1), characterized in that: The box body (1) comprises a panel (11) provided with a recessed portion (12); a plurality of terminals (13) are provided on the panel (11) within the recessed portion (12); and a shielding plate (15) is provided on the panel (11) that covers the recessed portion (12) and shields the terminals (13); It also includes a wiring hole (14) communicating with the outside of the box (1), wherein the wiring hole (14) is provided on at least one side of the periphery of the recessed portion (12) and / or on the shielding plate (15).

2. The terminal hidden high voltage control box structure according to claim 1, characterized in that: The recessed portion (12) includes a first recessed portion (121) and a second recessed portion (122); the shielding plate (15) includes a first shielding plate (151) matched with the first recessed portion (121) and a second shielding plate (152) matched with the second recessed portion (122); the terminal (13) includes a communication terminal (132), a battery output terminal (131), and a battery negative input terminal (133) arranged in the first recessed portion (121); and the terminal (13) further includes a battery positive input terminal (134) arranged in the second recessed portion (122).

3. The terminal hidden high voltage control box structure according to claim 2, characterized in that: The wiring hole (14) comprises a first wiring hole (141) provided on one side of the first recessed portion (121) and a second wiring hole (142) provided on the other side of the first recessed portion (121); the battery output terminal (131) is provided in the first recessed portion (121) close to one side of the first wiring hole (141); and the communication terminal (132) is provided in the first recessed portion (121) close to one side of the second wiring hole (142).

4. The terminal hidden high voltage control box structure according to claim 3, characterized in that: The wiring hole (14) further includes a third wiring hole (143) provided on the first shielding plate (151); the battery negative input terminal (133) is connected to a negative copper busbar (17); and the negative copper busbar (17) is connected to the negative electrode of the battery pack (2) through the third wiring hole (143).

5. The terminal hidden high voltage control box structure according to claim 4, characterized in that: A handle avoidance hole (19) is provided on the upper side of the first shielding plate (151), and the handle (112) is mounted on the box body (1) through the handle avoidance hole (19). The wiring hole (14) further includes a fifth wiring hole (145) provided on the lower side of the first shielding plate (151), and the fifth wiring hole (145) is used for AC terminal wiring. The third wiring hole (143) and the fifth wiring hole (145) are arranged at intervals, and the fifth wiring hole (145) is provided with a wire protection tooth.

6. The terminal hidden high voltage control box structure according to claim 4, characterized in that: The first wiring hole (141) is provided on the upper side of the first recessed portion (121), the second wiring hole (142) is provided on the left or right side of the first recessed portion (121), the third wiring hole (143) is provided on the lower side of the first shielding plate (151), and the battery pack (2) is located on the lower side of the third wiring hole (143).

7. The terminal-hidden high-voltage control box structure according to claim 2, characterized in that: The wiring hole (14) includes a fourth wiring hole (144) provided on one side of the second recessed portion (122); the battery positive input terminal (134) is connected to a positive copper busbar (18); and the positive copper busbar (18) is connected to the positive electrode of the battery pack (2) through the fourth wiring hole (144).

8. The terminal-hidden high-voltage control box structure according to any one of claims 1 to 7, characterized in that: The inner ring of the wiring hole (14) is provided with a protective coil, and the recessed portion (12) is provided with a wire buckle (16) for tying a wire harness.

9. The terminal-hidden high-voltage control box structure according to claim 8, characterized in that: The shielding plate (15) is detachably arranged at the recessed portion (12).

10. An energy storage device comprising a plurality of battery packs (2), characterized in that: It also includes a terminal-hidden high-voltage control box structure as described in any one of claims 1 to 9.

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