Connecting assembly and battery cluster thereof

Abstract

The utility model discloses a connecting assembly and a battery cluster thereof, the connecting assembly is arranged at the end parts of a battery plug-in box and a high-voltage box, and the connecting assembly comprises a plurality of combined connectors, a high-voltage copper bar group and a low-voltage wire harness; each combined connector is provided with a first plugging part and a second plugging part which are used for connecting the high-voltage copper bar group, and a third plugging part which is used for plugging the low-voltage wire harness, and also comprises a high-voltage input terminal which is electrically connected with the first plugging part, and a high-voltage output terminal which is electrically connected with the second plugging part. According to the utility model, the first plugging part and the second plugging part for connecting the high-voltage copper bar group and the third plugging part for plugging the low-voltage wire harness are integrated into the combined connector, and a communication inlet low-voltage interface and a communication outlet low-voltage interface in the prior art are replaced by one low-voltage interface, so that the connection of the high-voltage copper bar group and the low-voltage wire harness is facilitated; the installation efficiency is greatly improved, and the installation difficulty is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of battery packs, in particular to a connection assembly and a battery cluster thereof. Background Art

[0002] The energy storage part of the existing large-scale energy storage container can be divided into n clusters, and each battery cluster is composed of m battery plug-in boxes. Positive and negative high-voltage connectors, low-voltage communication connectors, maintenance switches, puncture valves, fire detectors, etc. are arranged on the single-side panel of the battery plug-in box according to the configuration. The electrical connection between the battery plug-in boxes is connected by high-voltage cables, and the material is generally EV silicone wire for energy storage. The communication methods mostly adopt daisy-chain communication and CAN communication. In the existing scheme, both the electrical connection and the communication connection need to be strung from the previous box to the next box. Each battery plug-in box is provided with a battery total positive and a battery total negative according to the polarity division, and a communication input interface and a communication output interface are set for each battery plug-in box according to the communication method and the installation process. The communication lines are strung from one box to the next box in sequence.

[0003] For the existing battery total positive, battery total negative, communication in, and communication out, there are separate connectors respectively. The high-voltage electrical connection between the battery plug-in boxes is connected in series by multiple high-voltage cables with different lengths, and the communication connection of the battery master-slave control is connected by multiple low-voltage cables with different lengths. Due to the flexibility of the cables and the operability of installation and fixation on the panel, it is difficult to distinguish the cable installation.

[0004] Therefore, it is urgent to propose a new solution to solve the above problems. Summary of the Invention

[0005] The utility model provides a connection assembly and a battery cluster thereof, which can solve the problem that in the prior art, the battery total positive, battery total negative, communication in, and communication out of the battery plug-in box are respectively provided with separate connectors during high-voltage and low-voltage connections, resulting in difficult distinction during installation.

[0006] The utility model provides a connection assembly, which is arranged at the ends of the battery plug-in box and the high-voltage box. The connection assembly includes a plurality of combined connectors, a high-voltage copper row group, and a low-voltage wire harness;

[0007] On a single combined connector, there are a first insertion part and a second insertion part for connecting the high-voltage copper row group, and a third insertion part for inserting the low-voltage wire harness. It also includes a high-voltage input terminal electrically connected to the first insertion part and a high-voltage output terminal electrically connected to the second insertion part.

[0008] Further, a plurality of the battery insertion boxes are sequentially arranged at the end of a single high-voltage box. A single high-voltage copper busbar group includes multiple first high-voltage copper busbars arranged at the ends of two adjacent battery insertion boxes and a single second high-voltage copper busbar connecting the high-voltage box and the battery insertion box at the farthest end. The upper and lower ends of a single first high-voltage copper busbar are respectively inserted into the second insertion part and the first insertion part of the upper and lower adjacent combined connectors.

[0009] Further, first seals are arranged on the first insertion part and the second insertion part, and the first seals are used to seal the first high-voltage copper busbar and the second high-voltage copper busbar.

[0010] Further, a plurality of wire harness connectors that are in one-to-one plug-in fit with the second insertion part are arranged at intervals on the low-voltage wire harness.

[0011] Further, the high-voltage input terminal includes a finger-proof part, a second seal, a metal conductor part, a metal spring body, and a socket part arranged in sequence. One end of the metal spring body is sleeved on the end of the metal conductor part, and the other end of the metal spring body is inserted into the middle opening of the socket part.

[0012] Further, a single battery insertion box includes a first panel on the left and a second panel on the right. The combined connector is arranged at the end of the first panel, and a puncture valve, an explosion-proof valve, and a maintenance switch are arranged at the end of the second panel.

[0013] Further, a high-voltage input interface corresponding to the high-voltage input terminal and a high-voltage output interface corresponding to the high-voltage output terminal are respectively arranged on the first panel. A low-voltage interface docked with the third insertion part is also arranged on the first panel.

[0014] Further, multiple first high-voltage copper busbars and a single second high-voltage copper busbar are arranged in parallel. Multiple first high-voltage copper busbars and a single second high-voltage copper busbar are connected by a plurality of copper busbar limiters. Limit clamping parts for the first high-voltage copper busbar and the second high-voltage copper busbar to pass through are respectively arranged on the upper and lower surfaces of a single copper busbar limiter.

[0015] Further, a cable tie for fixing the wire harness connector is arranged on the third insertion part.

[0016] The present utility model also provides a battery cluster, including the above connection assembly.

[0017] Compared with the prior art, the beneficial effects of the present utility model are:

[0018] 1. The utility model integrates the first plug-in part and the second plug-in part for connecting the high-voltage copper busbar group and the third plug-in part for plugging the low-voltage wire harness into a combined connector, replaces the two low-voltage interfaces of communication in and communication out in the prior art with one low-voltage interface, facilitates the access of the high-voltage copper busbar group and the low-voltage wire harness, greatly improves the installation efficiency, and reduces the installation difficulty.

[0019] 2. The utility model sets a high-voltage copper busbar group composed of multiple first high-voltage copper busbars and a single second high-voltage copper busbar, which facilitates the connection and installation of the upper and lower combined connectors. Description of the Drawings

[0020] Figure 1 It is a schematic installation diagram of the connection assembly of the utility model on the battery cluster;

[0021] Figure 2 It is Figure 1 the enlarged schematic diagram at position B in

[0022] Figure 3 It is a schematic structural diagram of a single battery insertion box of the utility model;

[0023] Figure 4 It is Figure 3 the enlarged schematic diagram at position A in

[0024] Figure 5 It is a partial assembly drawing of the battery insertion box and the combined connector;

[0025] Figure 6 It is a schematic overall structure diagram of the combined connector of the utility model;

[0026] Figure 7 It is a schematic overall explosion structure diagram of the combined connector of the utility model;

[0027] Figure 8 It is a schematic overall structure diagram of the connection assembly of the utility model;

[0028] Figure 9 It is a schematic overall explosion structure diagram of the connection assembly of the utility model;

[0029] Figure 10 It is a schematic structural diagram of the copper busbar limit part of the utility model;

[0030] Figure 11 It is a schematic installation diagram of the connection assembly of the utility model on the container cluster rack;

[0031] Reference numerals: 1, battery insertion box; 11, first panel; 111, high-voltage input interface; 112, high-voltage output interface; 113, low-voltage interface; 12, second panel; 121, puncture valve; 122, explosion-proof valve; 123, maintenance switch; 2, high-voltage box; 3, combined connector; 31, first insertion part; 32, second insertion part; 33, third insertion part; 34, high-voltage input terminal; 341, finger-proof part; 342, second seal; 343, metal conductor part; 344, metal spring body; 345, socket part; 35, high-voltage output terminal; 36, first seal; 4, high-voltage copper busbar group; 41, first high-voltage copper busbar; 42, second high-voltage copper busbar; 43, copper busbar positioner; 431, limit clamping part; 5, low-voltage wire harness; 51, wire harness plug; 52, cable tie. Detailed implementation mode

[0032] In order to further understand the content, features and effects of the present utility model, the following embodiments are hereby given and are described in detail in conjunction with the attached Figures 1 to 11 as follows.

[0033] As Figures 1 to 11 shown, this embodiment provides a connection assembly, which is arranged at the ends of the battery insertion box 1 and the high-voltage box 2. The above-mentioned connection assembly includes a plurality of combined connectors 3, a high-voltage copper busbar group 4 and a low-voltage wire harness 5;

[0034] On a single above-mentioned combined connector 3, there are provided a first insertion part 31 and a second insertion part 32 for connecting the above-mentioned high-voltage copper busbar group 4, and a third insertion part 33 for inserting the above-mentioned low-voltage wire harness 5. It also includes a high-voltage input terminal 34 electrically connected to the first insertion part 31 and a high-voltage output terminal 35 electrically connected to the second insertion part 32.

[0035] The present utility model integrates the first insertion part and the second insertion part for connecting the high-voltage copper busbar group, and the third insertion part for inserting the low-voltage wire harness into a combined connector, and replaces the two low-voltage interfaces of communication in and communication out in the prior art with one low-voltage interface, which facilitates the access of the high-voltage copper busbar group and the low-voltage wire harness, greatly improves the installation efficiency and reduces the installation difficulty.

[0036] In this embodiment, as Figure 1 、 6As shown in FIGS. 8 and 9, a plurality of the above-mentioned battery cassettes 1 are sequentially arranged at the upper and lower ends of a single above-mentioned high-voltage box 2. A single above-mentioned high-voltage copper busbar group 4 includes a plurality of first high-voltage copper busbars 41 arranged at the ends of adjacent two battery cassettes 1 and a single second high-voltage copper busbar 42 connecting the above-mentioned high-voltage box and the above-mentioned battery cassette 1 at the farthest end. The upper and lower ends of a single above-mentioned first high-voltage copper busbar 41 are respectively inserted into the second insertion part 32 and the first insertion part 31 of the upper and lower adjacent combined connectors 3, wherein both ends of the copper busbar are hardened and directly embedded inside the combined connector 3.

[0037] The utility model is convenient for the connection and installation of the upper and lower combined connectors by arranging a high-voltage copper busbar group composed of a plurality of first high-voltage copper busbars and a single second high-voltage copper busbar.

[0038] In this embodiment, as Figure 7 shown, a first seal 36 is arranged on the above-mentioned first insertion part 31 and the second insertion part 32. The above-mentioned first seal 36 is used to seal the first high-voltage copper busbar 41 and the second high-voltage copper busbar 42 for waterproof and dustproof sealing.

[0039] In this embodiment, as Figure 2 、 6 and 9 shown, a plurality of wire harness plug connectors 51 that are in one-to-one plug-in cooperation with the above-mentioned second insertion part 32 are arranged at intervals on the above-mentioned low-voltage wire harness 5. A groove for placing the wire harness plug connector 51 is also formed on the combined connector 3, and the third insertion part is located in the middle of the above-mentioned groove.

[0040] In this embodiment, as Figure 7 shown, the above-mentioned high-voltage input terminal 34 includes a finger guard part 341, a second seal 342, a metal conductor part 343, a metal spring body 344 and a socket part 345 arranged in sequence. One end of the above-mentioned metal spring body 344 is sleeved on the end of the above-mentioned metal conductor part 343, and the other end of the above-mentioned metal spring body 344 is inserted into the middle opening of the above-mentioned socket part 345. Among them, the above-mentioned second seal 342 is used to realize the seal between the socket part 345 and the high-voltage input interface 111 or the high-voltage output interface 112, so as to realize the waterproof and dustproof seal after the socket part 345 is installed in place.

[0041] In this embodiment, as Figure 3 shown, a single above-mentioned battery cassette 1 includes a first panel 11 on the left side and a second panel 12 on the right side. The above-mentioned combined connector 3 is arranged at the end of the above-mentioned first panel 11, and a puncture valve 121, an explosion-proof valve 122 and a maintenance switch 123 are arranged at the end of the above-mentioned second panel 12. According to the function, the combined connector 3 is distinguished from other functional parts for installation, which is convenient for process maintenance and installation.

[0042] In this embodiment, as Figures 3 to 5As shown, a high-voltage input interface 111 corresponding to a high-voltage input terminal 34 and a high-voltage output interface 112 corresponding to a high-voltage output terminal 35 are respectively arranged on the first panel 11. A low-voltage interface 113 for docking with the third plugging part 33 is also arranged on the first panel 11. The low-voltage interface 113 is located between the high-voltage input interface 111 and the high-voltage output interface 112.

[0043] In this embodiment, as Figures 8 to 10 shown, four first high-voltage copper bars 41 and a single second high-voltage copper bar 42 are arranged in parallel. The four first high-voltage copper bars 41 and the single second high-voltage copper bar 42 are connected by four copper-bar limiting parts 43. Limiting clamping parts 431 through which the first high-voltage copper bars 41 and the second high-voltage copper bar 42 pass are respectively arranged on the upper and lower surfaces of a single copper-bar limiting part 43. The first high-voltage copper bars 41 and the single second high-voltage copper bar 42 are fixed by the limiting clamping parts 431. After the assembly is plugged in, the high-voltage connection and signal connection between the battery plug-in box 1 and the high-voltage box 2 can be completed. Among them, the high-voltage connection is through the high-voltage copper-bar group 4, and the low-voltage connection is through the low-voltage wire harness 5.

[0044] In this embodiment, as Figure 2 shown, a cable tie 52 for fixing the wire harness plug connector 51 is arranged on the third plugging part 33, so as to realize the fixation of the wire harness plug connector 51. In addition.

[0045] The present utility model also provides a battery cluster, including the above connection assembly.

[0046] The above-mentioned utility model of the present invention only expresses the implementation manners of the embodiments of the present utility model, and thus cannot be understood as a limitation on the scope of the utility model patent, nor is it a limitation on the structure of the embodiments of the present utility model in any form. It should be noted that for those of ordinary skill in the art, without departing from the concept of the embodiments of the present utility model, several changes and improvements can still be made, and these all belong to the protection scope of the embodiments of the present utility model.

Claims

1. A connection assembly, arranged at the ends of a battery plug box (1) and a high-voltage box (2), characterized in that: The connection assembly comprises a plurality of modular connectors (3), a high-voltage copper busbar group (4) and a low-voltage wiring harness (5); A single combined connector (3) is provided with a first plug-in portion (31) and a second plug-in portion (32) for connecting the high-voltage copper busbar group (4), and a third plug-in portion (33) for plugging the low-voltage wiring harness (5), and also includes a high-voltage input terminal (34) electrically connected to the first plug-in portion (31) and a high-voltage output terminal (35) electrically connected to the second plug-in portion (32).

2. A connection assembly according to claim 1, characterized in that: A plurality of battery plug boxes (1) are sequentially arranged at the ends of a single high-voltage box (2); a single high-voltage copper bar group (4) comprises a plurality of first high-voltage copper bars (41) arranged at the ends of two adjacent battery plug boxes (1) and a single second high-voltage copper bar (42) connecting the high-voltage box and the battery plug box (1) at the farthest end; upper and lower ends of the single first high-voltage copper bar (41) are respectively plugged into the second plug-in portion (32) and the first plug-in portion (31) of two upper and lower adjacent combined connectors (3).

3. A connection assembly according to claim 2, characterized in that: A first sealing member (36) is provided on the first plug-in portion (31) and the second plug-in portion (32), and the first sealing member (36) is used to seal the first high-voltage copper busbar (41) and the second high-voltage copper busbar (42).

4. A connection assembly according to claim 1, characterized in that: A plurality of wiring harness plug connectors (51) are arranged at intervals on the low-voltage wiring harness (5) and are plugged in one by one with the second plug connector (32).

5. A connection assembly according to claim 1, characterized in that: The high-voltage input terminal (34) comprises an anti-touch finger portion (341), a second sealing member (342), a metal conductor portion (343), a metal spring body (344) and a socket portion (345) which are arranged in sequence; one end of the metal spring body (344) is sleeved on the end of the metal conductor portion (343), and the other end of the metal spring body (344) is plugged into a middle opening of the socket portion (345).

6. A connection assembly according to claim 1, characterized in that: A single battery plug box (1) comprises a first panel (11) located on the left side and a second panel (12) located on the right side, the modular connector (3) is arranged at the end of the first panel (11), and the end of the second panel (12) is provided with a puncture valve (121), an explosion-proof valve (122) and a maintenance switch (123).

7. A connection assembly according to claim 6, characterized in that: The first panel (11) is provided with a high-voltage input interface (111) and a high-voltage output interface (112) corresponding to the high-voltage input terminal (34) and the high-voltage output terminal (35), respectively. The first panel (11) is also provided with a low-voltage interface (113) connected to the third plug-in portion (33).

8. A connection assembly according to claim 2, characterized in that: A plurality of the first high-voltage copper bars (41) and a single second high-voltage copper bar (42) are arranged in parallel, and the plurality of the first high-voltage copper bars (41) and the single second high-voltage copper bar (42) are connected via a plurality of copper bar stoppers (43), and upper and lower surfaces of the single copper bar stopper (43) are respectively provided with stopper clamping portions (431) for the first high-voltage copper bar (41) and the second high-voltage copper bar (42) to pass through.

9. A connection assembly according to claim 4, characterized in that: The third plug-in portion (33) is provided with a cable tie (52) for fixing the wiring harness plug connector (51).

10. A battery cluster, characterized in that: Comprising a connection assembly as claimed in any one of claims 1 to 9.

Images