Cluster box for ship and ship battery system

Abstract

The utility model provides a cluster box for a ship and a ship battery system, and relates to the technical field of ship battery systems. The cluster box for the ship comprises a box body, a positive electrode power supply terminal and a negative electrode power supply terminal. Wherein the box body is used for accommodating electrical components and is arranged side by side with the confluence cabinet along a first direction. The anode power supply terminal and the cathode power supply terminal are respectively used for connecting an anode and a cathode of an electrical component. The box body comprises a first side wall and a second side wall, the first side wall is used for being attached to and connected with the confluence cabinet, the second side wall is perpendicular to the first side wall, the positive power supply terminal and the negative power supply terminal are arranged on the second side wall and are arranged in a spaced mode in the second direction, and the second direction intersects with the first direction. According to the invention, the lines of the positive and negative power supply terminals are not mutually shielded and are not easy to wind, thereby greatly facilitating wiring and maintenance, facilitating further standardization, reducing the cost of the ship battery system, and improving the wiring efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to ship battery system technical field, specifically, relate to a cluster box for ship and ship battery system. BACKGROUND

[0002] With the continuous development of new energy technology, consider the application field of new energy technology to expand to the ship, use new energy battery system to power the ship. Due to the navigation characteristics of the ship, the battery system needs to provide longer endurance time, under the present technical conditions, the battery system of the ship needs to configure a large number of high energy density batteries, and the installation space in the ship container is small, in order to save more space for the battery, other electrical equipment installation space needs to be compressed as much as possible. For example, in the related art, the cluster box of the battery cluster in the battery system is arranged in parallel with the busbar cabinet, and then the high-voltage connector terminal, cluster group communication terminal and the like provided on the cluster box of the battery cluster are connected to the busbar cabinet by a line. In the case of small space, how to lay the line, not only saves the line space, but also provides space redundancy for line installation and maintenance, which is one of the research directions in the field. SUMMARY

[0003] Embodiments of the utility model provide a cluster box for ship and ship battery system to improve the line layout problem of cluster box and busbar cabinet.

[0004] In a first aspect, embodiments of the utility model provide a cluster box for ship, comprising:

[0005] A box body is used to accommodate electrical components of a battery cluster and is arranged in parallel with a busbar cabinet along a first direction.

[0006] A positive supply terminal is used to connect the positive electrode of the electrical components.

[0007] A negative supply terminal is used to connect the negative electrode of the electrical components.

[0008] The box body includes a first side wall and a second side wall, the first side wall is used to fit and connect the busbar cabinet, the second side wall is perpendicular to the first side wall, the positive supply terminal and the negative supply terminal are arranged on the second side wall, the positive supply terminal and the negative supply terminal are arranged in the second direction, and the second direction intersects the first direction.

[0009] In an embodiment of the present application, the second side wall includes a first region, a second region and a third region, the first region, the second region and the third region are staggered in the first direction.

[0010] The positive power supply terminal and the negative power supply terminal are arranged in the first area; the cluster box further comprises a battery charging interface, a cluster group communication interface and a PACK communication interface, the battery charging interface is arranged in the second area, and the cluster group communication interface and the PACK communication interface are arranged in the third area.

[0011] In an embodiment of the present application, the first area and the third area are staggered in the second direction.

[0012] In an embodiment of the present application, the distances from the first area, the second area and the third area to the first side wall are sequentially reduced.

[0013] In an embodiment of the present application, the cluster group communication interface and the PACK communication interface are arranged in the first direction with a spacing, and the distance between the cluster group communication interface and the first side wall is smaller than the distance between the PACK communication interface and the first side wall.

[0014] In an embodiment of the present application, the battery charging interface comprises a positive charging interface and a negative charging interface, and the positive charging interface and the negative charging interface are arranged in the first direction with a spacing.

[0015] In an embodiment of the present application, the cluster box further comprises:

[0016] At least two connectors, and the positive power supply terminal and the negative power supply terminal are respectively matched with two of the connectors;

[0017] The connector comprises a plug and a connecting piece, the plug comprises a plug-in part and a bent part, the plug-in part is matched with the corresponding power supply terminal, the bent part extends in the first direction and forms an L shape with the plug-in part, and the connecting piece is connected to the bent part at one end and connected to the busbar cabinet at the other end.

[0018] In an embodiment of the present application, the connector further comprises a mounting seat, a pressing rod and a sliding block, the mounting seat is arranged on the side of the plug-in part away from the bent part, the mounting seat is provided with a rotating shaft and a clamping part, the pressing rod is rotatably connected to the rotating shaft, and the sliding block is slidably connected to the pressing rod and has a locking position and an unlocking position;

[0019] When the sliding block is in the locking position, the sliding block is matched with the clamping part to limit the rotation of the pressing rod and make the pressing rod abut against the outer surface of the corresponding power supply terminal;

[0020] When the sliding block is in the unlocking position, the sliding block is separated from the clamping part and the limitation on the pressing rod is released.

[0021] In one embodiment of the present application, the connecting member comprises a wire harness and / or a copper bar.

[0022] In a second aspect, embodiments of the utility model provide a ship battery system, which comprises:

[0023] A busbar cabinet;

[0024] A battery cluster, which comprises electrical components and a plurality of single batteries;

[0025] The cluster box for a ship according to any one of the first aspect, the cluster box contains the electrical components of the battery cluster and is connected to the busbar cabinet.

[0026] The beneficial effects of the embodiments of the utility model are:

[0027] The technical scheme provided by the present application, by setting the box body to be parallel to the busbar cabinet along the first direction, and setting the positive supply terminal and the negative supply terminal on the second side wall of the box body to be spaced apart along the second direction, the second direction intersects the first direction, so that the lines of the positive supply terminal and the negative supply terminal do not block each other and are not easy to entangle, greatly facilitating wiring work and maintenance work. Further, the second direction is perpendicularly intersected with the first direction, so that the wiring length between the positive supply terminal and the negative supply terminal and the busbar cabinet is consistent, which is conducive to further standardization, and the two specifications are unified, without the need for on-site cutting and the need to prepare two or more lengths of line sections, which is conducive to reducing cost and improving wiring efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0029] Figure 1 The connection structure plane schematic view of the cluster box and the busbar cabinet provided by one embodiment of the present application;

[0030] Figure 2 The structure three-dimensional schematic view of the cluster box provided by one embodiment of the present application;

[0031] Figure 3 The plane schematic view of the second side wall of the cluster box provided by one embodiment of the present application;

[0032] Figure 4 The three-dimensional schematic view of the connector of the cluster box provided by one embodiment of the present application;

[0033] Figure 5 The Figure 4A portion of the drawing of Figure 1 is shown in enlarged scale.

[0034] Icon: 1000 - busbar cabinet, 2000 - cluster box, 1 - box body, 11 - first side wall, 12 - second side wall, 121 - first area, 122 - second area, 123 - third area, 21 - positive power supply terminal, 22 - negative power supply terminal, 31 - positive charging interface, 32 - negative charging interface, 41 - cluster group communication interface, 42 - PACK communication interface, 5 - connector, 51 - plug, 511 - plug-in part, 512 - bending part, 52 - connecting piece, 53 - mounting seat, 54 - pressing rod, 55 - sliding block, X - first direction, Y - second direction. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. In addition, it should be understood that the specific embodiments described herein are only used to illustrate and explain the present application, and are not used to limit the present application. In the present application, unless stated otherwise, the orientation words such as "upper" and "lower" generally refer to the upper and lower of the device in the actual use or working state, and specifically refer to the drawing direction in the drawings; and "inner" and "outer" refer to the contour of the device. It should be noted that: similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. If the terms "first", "second", etc. appear in the description of the present application, they are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0036] In a large ship battery system, a plurality of single batteries are connected in series or parallel to form a battery cluster, and a plurality of battery clusters are connected in parallel to form a battery pack (PACK), each battery cluster is equipped with a cluster high-voltage box (referred to as a cluster box), each cluster box contains the electrical components of the corresponding battery cluster, and each battery pack is equipped with a busbar cabinet, and the busbar cabinet of each battery pack is connected with the cluster box through a line. The connection line between the cluster box and the busbar cabinet includes various lines, such as positive and negative lines for supplying power to the load, communication lines or monitoring lines, etc.

[0037] Due to the limited installation space within shipping containers, to provide longer operating range, the installation space for other electrical equipment is generally minimized to accommodate more batteries. Related technologies employ measures such as placing the battery cluster boxes and combiner cabinets side-by-side in a compact configuration to reduce space occupation. Furthermore, wiring connects the high-voltage connector terminals and cluster communication terminals located on the battery cluster boxes to the combiner cabinet. In situations of limited space, how to lay out wiring that saves space while providing spatial redundancy for easy installation and maintenance is one of the research directions in this field.

[0038] This application provides a marine battery system, including a combiner cabinet, a battery cluster, and a cluster box. The battery cluster includes electrical components and multiple individual batteries, and the cluster box houses the electrical components of the battery cluster and is connected to the combiner cabinet.

[0039] The number of cluster boxes can be multiple, and the number of battery clusters can be multiple. Multiple cluster boxes correspond to multiple battery clusters. Each cluster box contains the electrical components of the corresponding battery cluster and is connected to the combiner cabinet.

[0040] like Figure 1 As shown, Figure 1 A combiner cabinet 1000 and a cluster box 2000 are shown. The cluster box 2000 includes a housing 1, terminals disposed on the housing 1, and connectors 5.

[0041] like Figure 2 As shown, Figure 2 A three-dimensional structural schematic diagram of the housing 1 is shown. The cluster box 2000 includes the housing 1, a positive power supply terminal 21, and a negative power supply terminal 22.

[0042] The enclosure 1 is used to house electrical components and is configured to be arranged side by side with the combiner cabinet 1000 along a first direction X. The enclosure 1 includes a first side wall 11 and a second side wall 12, the second side wall 12 being perpendicular to the first side wall 11, and the first side wall 11 being used to attach to and connect the combiner cabinet 1000.

[0043] Specifically, the enclosure 1 and the junction box 1000 are arranged side by side along the first direction X, so the first side wall 11 is perpendicular to the first direction X, and the second side wall 12 is parallel to the first direction X.

[0044] The positive power supply terminal 21 is used to connect to the positive terminal of the electrical component. The negative power supply terminal 22 is used to connect to the negative terminal of the electrical component. Both the positive power supply terminal 21 and the negative power supply terminal 22 are located on the second side wall 12.

[0045] Specifically, the positive power supply terminal 21 and the negative power supply terminal 22 are both arranged through the second side wall 12, and one end of the positive power supply terminal 21 and the negative power supply terminal 22 inside the box body 1 is connected with the positive electrode and the negative electrode of the electrical components in the box body 1; and the other end of the positive power supply terminal 21 and the negative power supply terminal 22 outside the box body 1 is used to connect the bus cabinet 1000, so as to supply power to the load through the bus cabinet 1000.

[0046] The positive power supply terminal 21 and the negative power supply terminal 22 are arranged along the second direction Y, and the second direction Y is perpendicular to the first direction X.

[0047] The "second direction Y is perpendicular to the first direction X" means that the second direction Y is arranged at a certain angle with the first direction X, for example, the angle between the second direction Y and the first direction X is 30°, 45°, 60°, 75°, 90°, 105°, 120°, 135° or 150°, etc.

[0048] The embodiments of the present application take the angle between the second direction Y and the first direction X as 90° for illustration, that is, the second direction Y and the first direction X are perpendicular to each other, and the second direction Y is parallel to the second side wall 12. Assuming that the first direction X is the left-right direction, then the second direction Y is the up-down direction, and the positive power supply terminal 21 and the negative power supply terminal 22 are vertically arranged along the up-down direction.

[0049] In the related art, there are various setting modes of the positive power supply terminal 21 and the negative power supply terminal 22, for example, the positive power supply terminal 21 and the negative power supply terminal 22 are arranged along the first direction X, and for example, the positive power supply terminal 21 and the negative power supply terminal 22 are arranged in an oblique up and down manner. The related setting mode is more suitable for implementation in other application scenarios, and there are many problems in the ship container scenario. For example, when the positive power supply terminal 21 and the negative power supply terminal 22 are arranged along the first direction X, since the box body 1 and the bus cabinet 1000 are arranged side by side along the first direction X, the line of one terminal will be blocked above the other terminal, which causes hindrance to the wiring work and maintenance work of the line of the other terminal, and the two lines are also easy to entangle, and the wiring lengths of the two lines are not the same, which cannot be further standardized.

[0050] The technical scheme provided by the embodiments of the present application, by setting the box 1 to be parallel to the busbar cabinet 1000 along the first direction X, and setting the positive power supply terminal 21 and the negative power supply terminal 22 on the second side wall 12 of the box 1 to be arranged at intervals along the second direction Y, the second direction Y is arranged to be perpendicular to the first direction X, so that the lines of the positive power supply terminal 21 and the negative power supply terminal 22 do not block each other and are not easy to entangle, greatly facilitating the wiring work and maintenance work. Further, the second direction Y is arranged to be perpendicular to the first direction X, so that the wiring length between the positive power supply terminal 21 and the negative power supply terminal 22 and the busbar cabinet 1000 is consistent, which is conducive to further standardization, and the two specifications are unified, without the need for on-site cutting and the need to prepare two or more lengths of line sections, which is conducive to reducing costs and improving wiring efficiency.

[0051] The side of the busbar cabinet 1000 facing the cluster box 2000 is defined as a third side wall, and the third side wall is used to install the cluster box 2000. Further, the area of the first side wall 11 is smaller than the area of the third side wall, so that the second side wall 12 is recessed from the edge of the third side wall to form an accommodation space, the accommodation space is used to accommodate the terminals on the second side wall 12 of the cluster box 2000 and their connection lines, achieving the effect of protecting the terminals and connection lines and reducing the occupation of additional space; at the same time, the connection lines directly enter the busbar cabinet 1000 from the third side wall, without the need to bend or curve when entering the busbar cabinet 1000, which is conducive to reducing the stress on the wire harness and improving the service life of the wire harness.

[0052] In some embodiments, the cluster box 2000 further includes a battery charging interface, a cluster group communication interface 41 and a PACK communication interface 42.

[0053] As shown in Figure 3 , Figure 3 A plan view of the second side wall 12 is shown, the second side wall 12 includes a first region 121, a second region 122 and a third region 123, the first region 121, the second region 122 and the third region 123 are staggered in the first direction X; wherein:

[0054] The positive power supply terminal 21 and the negative power supply terminal 22 are arranged in the first region 121;

[0055] The battery charging interface is arranged in the second region 122;

[0056] The cluster group communication interface 41 and the PACK communication interface 42 are arranged in the third region 123.

[0057] By arranging the first region 121, the second region 122 and the third region 123 staggered in the first direction X, the three regions do not overlap and do not block each other in the first direction X, which is conducive to wiring between the cluster box 2000 and the busbar cabinet 1000 without blocking and entangling.

[0058] In some embodiments, at least the first region 121 and the third region 123 are staggered in the second direction Y. By staggering the three regions in the second direction Y, the distance between the interfaces of adjacent regions is further facilitated for wiring and maintenance. Figure 2 As shown, the positive power supply terminal 21, the negative power supply terminal 22 and the cluster group communication interface 41 must be connected with the busbar cabinet 1000, and the battery charging interface is not necessarily connected with the busbar cabinet 1000 in some cases. By staggering the first region 121 where the positive power supply terminal 21 and the negative power supply terminal 22 are located and the third region 123 where the cluster group communication interface 41 is located in the second direction Y, wiring is further facilitated.

[0059] In some embodiments, the distances between the first region 121, the second region 122 and the third region 123 and the first side wall 11 decrease in turn. By arranging the second region 122 where the battery charging interface is located in the middle position, the distance between the positive power supply terminal 21, the negative power supply terminal 22 and the cluster group communication interface 41 is increased, the possibility of winding of the three parallel lines is further reduced, and the parallel length of the line connected by the cluster group communication interface 41 for communication and the positive and negative power supply lines is reduced, which is conducive to reducing the influence of the power supply line on the communication signal.

[0060] Although only one cluster box 2000 is shown in the drawings of the embodiments of the present application as an example of being connected side by side with the busbar cabinet 1000 in the first direction X, it should be understood by those skilled in the art that other cluster boxes 2000 in the ship battery system also need to be connected side by side with the busbar cabinet 1000 in the first direction X, i.e., a plurality of cluster boxes 2000 are arranged in turn in the second direction Y. In order to improve the endurance capability, when more battery clusters are added, the number of cluster boxes 2000 also needs to be increased accordingly.

[0061] In some embodiments, the cluster group communication interface 41 and the PACK communication interface 42 are arranged at intervals in the first direction X, and the distance between the cluster group communication interface and the first side wall is less than the distance between the PACK communication interface and the first side wall. By arranging the cluster group communication interface 41 and the PACK communication interface 42 at intervals in the first direction X, it is conducive to reducing the size of the box body 1 in the second direction Y, which in turn is conducive to arranging more cluster boxes 2000 under the condition that the space height is unchanged, which is conducive to meeting the demand of improving the endurance capability. At the same time, the cluster group communication interface 41 is closer to the first side wall 11 than the PACK communication interface 42, which avoids the connection line between the cluster group communication interface 41 and the busbar cabinet 1000 from shielding the PACK communication interface 42, and avoids the situation that it is not convenient for wiring and maintenance from hindering the reduction of the size of the box body 1.

[0062] In some embodiments, the battery charging interface comprises a positive charging interface 31 and a negative charging interface 32, and the positive charging interface and the negative charging interface are arranged in the first direction X. By arranging the positive charging interface 31 and the negative charging interface 32 in the first direction X, the size of the box body 1 in the second direction Y is reduced, thereby facilitating the arrangement of more cluster boxes 2000 under the condition of unchanged space height, and facilitating the meeting of the demand for improving the endurance.

[0063] In some embodiments, the cluster box 2000 further comprises a connector 5, which is a structural component for connecting the aforementioned terminals with the busbar cabinet 1000, and can also be understood as the aforementioned line.

[0064] The number of the connector 5 corresponds to the number of the ports required to be connected with the busbar cabinet 1000, that is, the number of the connector 5 is at least two, so as to connect the positive power supply terminal 21 and the negative power supply terminal 22 with the busbar cabinet 1000.

[0065] The embodiments of the present application take two connectors 5 corresponding to the positive power supply terminal 21 and the negative power supply terminal 22 as an example for description, and the connectors 5 of the remaining terminals can be the same as the embodiments of the present application, or can be set as other structures.

[0066] As shown in Figure 4 , the connector 5 comprises a plug 51 and a connecting piece 52, the plug 51 comprises a plug-in part 511 and a bent part 512, the plug-in part 511 is plug-in matched with the corresponding power supply terminal, the bent part 512 extends along the first direction X and is connected with the plug-in part 511 to form an L shape, and the connecting piece 52 is connected with the bent part 512 at one end and is used for connecting the busbar cabinet 1000 at the other end.

[0067] Among them, the connecting piece 52 comprises a wire harness and / or a copper bar.

[0068] The embodiments of the present application improve the connector 5, and the connecting piece 52 (wire harness and / or copper bar) does not need to be bent or curved, which is beneficial to reduce the stress suffered by the connecting piece 52 and improve the service life.

[0069] In some embodiments, as shown in Figure 5 , the connector 5 further comprises a mounting seat 53, a pressing rod 54 and a sliding block 55, the mounting seat 53 is arranged on the side of the plug-in part 511 away from the bent part 512, the mounting seat 53 is provided with a rotating shaft and a clamping part, the pressing rod 54 is rotatably connected with the rotating shaft, and the sliding block 55 is slidably connected with the pressing rod 54 and has a locking position and an unlocking position;

[0070] When the sliding block 55 is in the locking position, the sliding block 55 is matched with the clamping part to limit the rotation of the pressing rod 54 and make the pressing rod 54 abut against the outer surface of the corresponding power supply terminal;

[0071] The slider 55 is disengaged from the clamping portion and releases the restriction to the pressing rod 54 in the unlocked position.

[0072] The above has carried out the detailed introduction to the embodiment of the utility model, the principle and implementation mode of the utility model have been described in this article by applying specific examples, the above embodiment explanation is only for helping understanding the method of the utility model and its core thought; simultaneously, for the technical personnel of the field, according to the thought of the utility model, there will be changes in specific implementation mode and application range, and the above is described, the content of the specification should not be understood as the limitation of the utility model.

Claims

1. A cluster box for a watercraft, characterized by, The application relates to a battery cluster box for a ship, comprising: a box body for accommodating electrical components of a battery cluster and arranged side by side with a busbar cabinet along a first direction; a positive power supply terminal for connecting the positive poles of the electrical components; a negative power supply terminal for connecting the negative poles of the electrical components; wherein the box body comprises a first side wall for abutting and connecting the busbar cabinet and a second side wall perpendicular to the first side wall, the positive power supply terminal and the negative power supply terminal are arranged on the second side wall, and the positive power supply terminal and the negative power supply terminal are arranged in a second direction intersecting the first direction.

2. The cluster box for a watercraft according to claim 1, characterized by The second side wall comprises a first region, a second region and a third region, and the first region, the second region and the third region are staggered in the first direction; the positive power supply terminal and the negative power supply terminal are arranged in the first region; the cluster box further comprises a battery charging interface, a cluster group communication interface and a PACK communication interface, the battery charging interface is arranged in the second region, and the cluster group communication interface and the PACK communication interface are arranged in the third region.

3. The cluster box for a watercraft according to claim 2, characterized by The first region and the third region are staggered in the second direction.

4. The cluster box for a watercraft according to claim 3, characterized by The distances between the first region, the second region, the third region and the first side wall decrease in sequence.

5. A cluster box for a watercraft according to any one of claims 2-4, characterized in that The cluster group communication interface and the PACK communication interface are arranged in the first direction, and the distance between the cluster group communication interface and the first side wall is smaller than the distance between the PACK communication interface and the first side wall.

6. A cluster box for a watercraft according to any one of claims 2-4, characterized in that The battery charging interface comprises a positive charging interface and a negative charging interface, and the positive charging interface and the negative charging interface are arranged in the first direction.

7. The cluster box for a watercraft according to claim 1, wherein The cluster box further comprises: at least two connectors, and the positive power supply terminal and the negative power supply terminal are respectively connected to two of the connectors; the connector comprises a plug and a connecting piece, the plug comprises a plug-in part and a bent part, the plug-in part is in plug-in cooperation with the corresponding power supply terminal, the bent part extends along the first direction and forms an L shape with the plug-in part, and one end of the connecting piece is connected to the bent part and the other end is used for connecting the busbar cabinet.

8. The cluster box for a watercraft according to claim 7, characterized by The connector further comprises a mounting seat, a pressing rod and a sliding block, the mounting seat is arranged on the side of the plug-in part away from the bent part, the mounting seat is provided with a rotating shaft and a clamping part, the pressing rod is rotatably connected to the rotating shaft, and the sliding block is slidably connected to the pressing rod and has a locking position and an unlocking position; when the sliding block is in the locking position, the sliding block is matched with the clamping part to limit the rotation of the pressing rod and make the pressing rod abut against the outer surface of the corresponding power supply terminal; when the sliding block is in the unlocking position, the sliding block is separated from the clamping part and the limitation on the pressing rod is released.

9. The cluster box for a watercraft according to claim 7 or 8, characterized by The connecting piece comprises a wire harness and / or a copper bar.

10. A marine vessel battery system characterized by, The application relates to a battery cluster box for a ship, comprising: a busbar cabinet; a battery cluster comprising electrical components and a plurality of single batteries; the battery cluster box according to any one of claims 1-9, wherein the battery cluster box accommodates the electrical components of the battery cluster and connects the busbar cabinet.

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