Electrical junction box, battery module and vehicle

Abstract

The invention discloses an electrical junction box, a battery module and a vehicle. The electrical junction box comprises a base, a cover and a shielding plate. The base comprises a wiring platform. The cover comprises a top plate and side plates. The top plate covers the wiring platform so as to form a wiring space between the top plate and the wiring platform. The side plate extends towards the wiring table and is separated from the wiring table to form a wiring gap, and the wiring gap is communicated with the wiring space. The shielding plate is connected with the side plate and is suitable for moving relative to the side plate so as to open or close the wiring gap. According to the electrical junction box, the shielding plate is connected with the side plate and can move relative to the side plate so as to open or close the wiring gap. When the busbar is installed, the shielding plate only needs to move relative to the side plate to open the wiring gap, the shielding plate does not need to be removed, and the condition that the shielding plate falls into the electrical junction box or the battery pack does not occur.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to an electrical junction box. The present application also relates to a battery module and a vehicle including the electrical junction box. Background Art

[0002] In the prior art, new energy vehicles are usually equipped with a battery pack to power electrical components (e.g., motors, etc.). The battery pack usually includes a housing and a plurality of battery modules disposed in the housing. These battery modules are electrically connected via a busbar (or cable).

[0003] Typically, a junction box is provided at the connection between the busbar and the battery module, and a removable baffle is provided on the side wall of the junction box. When installing the busbar into the junction box, the baffle needs to be removed to form a socket; then, the busbar is inserted into the junction box through the socket. However, the removed baffle may accidentally fall into the interior of the junction box or the interior of the battery pack, which may cause the battery pack to malfunction. Summary of the invention

[0004] In view of the above technical problems, the first aspect of the present application proposes an electrical junction box. The electrical junction box comprises: a base, the base comprises a junction block; a cover, the cover comprises a top plate and at least one side plate connected to the top plate; the top plate is arranged to cover the junction block to form a junction space between the top plate and the junction block, the side plate extends toward the junction block and is spaced apart from the junction block to form a junction gap, and the junction gap is connected to the junction space; and a shielding plate, the shielding plate is connected to the side plate and is arranged to be movable relative to the side plate to open or close the junction gap.

[0005] In one embodiment, the shielding plate is slidably mounted on the side plate, and the shielding plate is configured to slide vertically upward relative to the side plate to open the wiring gap, or slide vertically downward relative to the side plate to close the wiring gap.

[0006] In one embodiment, the shielding plate includes a main body portion parallel to the side plate and two sliding claws respectively configured on two vertical edges of the main body portion; each sliding claw is slidably engaged with a corresponding vertical edge of the side plate.

[0007] In one embodiment, a plurality of openings are provided on the side panel, and the plurality of openings are distributed spaced apart vertically; the shielding plate also includes an elastic plate, and a first hook is constructed on the elastic plate; the elastic plate extends vertically from the main body and is aligned with the plurality of openings, so that the first hook can be hooked into the corresponding opening.

[0008] In one embodiment, a protruding stopper is configured on at least one vertical edge of the side plate; the sliding claw is suitable for being stopped by the stopper.

[0009] In one embodiment, the shielding plate is connected to the lower edge of the side panel through a soft connection structure to form a whole with the side panel, and the shielding plate is configured to fold inward or outward relative to the side panel through the soft connection structure to open the wiring gap, or extend toward the wiring station to close the wiring gap.

[0010] In one embodiment, the soft connection structure is configured as a fold.

[0011] In one embodiment, the top plate is hingedly connected to the base.

[0012] In one embodiment, a hinge shaft is configured on one of the top plate and the base, and a hinge groove is configured on the other of the top plate and the base; the hinge shaft is rotatably accommodated in the hinge groove.

[0013] In one embodiment, a limiting plate extending radially outward is configured on the hinge shaft, and the limiting plate is suitable for abutting against the hinge groove.

[0014] In one embodiment, the base is configured with a protrusion; the protrusion protrudes upward in the vertical direction relative to the wiring platform; and the hinge groove is configured on the protrusion.

[0015] In one embodiment, the cover further comprises at least one supporting leg which is offset from the hinge axis and the side plate and extends from the top plate toward the base to abut against the base.

[0016] In one embodiment, at least one supporting protrusion is configured on the base, and the supporting protrusion abuts against a corresponding supporting leg.

[0017] In one embodiment, a second elastic hook is constructed on one of the base and the top plate; a connecting groove matching the second hook is constructed on the other of the base and the top plate; and the second hook is hooked into the connecting groove.

[0018] In one embodiment, the base further comprises a connecting bolt, and the connecting bolt extends vertically upward from the wiring platform.

[0019] The second aspect of the present application provides a battery module, which includes: a module body, which includes a shell and a battery cell disposed in the shell; and the electrical junction box described above, which is mounted on the shell.

[0020] The third aspect of the present application provides a vehicle, which includes: a chassis, on which a vehicle compartment is mounted; and a battery pack, which is arranged on the chassis; and a plurality of the battery modules described above are arranged in the battery pack.

[0021] The beneficial effects of the present application are as follows: the electrical junction box of the present application includes a baffle. The baffle is connected to the side panel of the cover and can move relative to the side panel to open or close the wiring gap. In this way, when installing the bus, it is only necessary to move the baffle relative to the side panel to open the wiring gap, and there is no need to remove the baffle, so the baffle will not fall into the interior of the electrical junction box or the interior of the battery pack. In addition, after removing the bus, the baffle can be moved relative to the side panel to close the wiring gap, and there is no need to remove the baffle. In this way, even if the bus is disassembled and installed many times, the electrical junction box will not be damaged and does not need to be replaced, which helps to reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0023] Figure 1 A vehicle according to one embodiment of the present application is schematically shown.

[0024] Figure 2 A battery module according to an embodiment of the present application is schematically shown.

[0025] Figure 3 A partial enlarged view of the module body is schematically shown.

[0026] Figure 4 An electrical junction box according to a first embodiment of the present application is schematically shown.

[0027] Figure 5 The electrical junction box according to the first embodiment of the present application is schematically shown, wherein the cover is in an open state, wherein the busbar is mounted on the electrical junction box.

[0028] Figure 6 Schematically shows Figure 5 The base of the electrical junction box is shown.

[0029] Figure 7 Schematically shown in first-person perspective Figure 4 The cover of the electrical junction box is shown.

[0030] Figure 8 Schematically shown in the second perspective Figure 4 The cover of the electrical junction box is shown.

[0031] Fig. 9 Schematically shows Figure 4 The cover for the electrical junction box is shown.

[0032] Fig.10An electrical junction box according to a second embodiment of the present application is schematically shown.

[0033] Fig.11 Schematically shows Fig.10 In the cover shown, one of the shielding plates is in a folded-outward state.

[0034] Reference numerals list

[0035] 1 Vehicle

[0036] 10 chassis 11 carriage

[0037] 2 battery packs

[0038] 3Battery Module

[0039] 30 module body

[0040] 301 shell 302 pole piece

[0041] 303 mounting slot

[0042] 4 Electrical junction box

[0043] 401 Wiring Space 402 Bus

[0044] 403 Wiring Clearance

[0045] 41 base

[0046] 410 mounting seat 411 terminal block

[0047] 412 raised portion 415 hinge groove

[0048] 416 support protrusion 417 connection bolt

[0049] 418 connection slot

[0050] 42 Lid

[0051] 420 top plate 421 side plate

[0052] 422 The vertical edge 423 of the side plate is opened

[0053] 424 block body 425 articulated shaft

[0054] 426 support leg 427 limit plate

[0055] 428 lower edge of the side plate 429 second hook

[0056] 43 shielding plate

[0057] 431 main body 432 sliding claw

[0058] 433 vertical edge of the main body 434 elastic plate

[0059] 436 soft connection structure 437 first hook

[0060] Z vertical DETAILED DESCRIPTION

[0061] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in combination with the specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0062] In this application, the term "vertical" refers to a direction generally perpendicular to the wiring board. The term "inside" refers to a direction generally pointing toward the wiring space; the term "outside" refers to a direction generally away from the wiring space (ie, opposite to the direction "inside").

[0063] Figure 1 A vehicle 1 according to an embodiment of the present application is schematically shown. Figure 1 As shown, the vehicle 1 includes a chassis 10, and a vehicle compartment 11 is mounted on the chassis 10. In addition, the vehicle 1 also includes a battery pack 2 disposed on the chassis 10. A plurality of battery modules 3 are disposed in the battery pack 2.

[0064] like Figure 2 As shown, the battery module 3 includes a module body 30 and an electrical junction box 4. The module body 30 includes a housing 301 and a battery cell (not shown) disposed in the housing 301. The electrical junction box 4 is mounted on the housing 301. The battery cell is well known to those skilled in the art and will not be described in detail here.

[0065] In one embodiment, the pole piece 302 of the battery cell extends from the housing 301 into the wiring space 401 of the electrical junction box 4 (eg, Figure 5 402 (or cable). This will be described in detail below.

[0066] Also like Figure 3 As shown, a mounting groove 303 is constructed on the housing 301. Correspondingly, a mounting seat 410 (such as Figure 4 The mounting seat 410 is engaged with the mounting groove 303 to stably mount the electrical junction box 4 on the module body 30. Of course, the electrical junction box 4 can also be mounted on the housing 301 by other appropriate mounting structures (for example, screws, etc.), which will not be described in detail here.

[0067] According to the following Figures 4 to 11The structure of the electrical junction box 4 will be described.

[0068] Figure 4 The electrical junction box 4 of the first embodiment is schematically shown. Figure 4 As shown, the electrical junction box 4 includes a base 41 , a cover 42 , and a shielding plate 43 .

[0069] Specifically, if Figure 5 and Figure 6 As shown, the base 41 is configured with a wiring platform 411. The pole piece 302 can be set on the wiring platform 411. In addition, the base 41 also includes a connecting bolt 417. The connecting bolt 417 extends upward from the wiring platform 411 along the vertical direction Z. The pole piece 302 is configured with a first mounting hole (not shown in the figure) adapted to the connecting bolt 417. In this way, the pole piece 302 can be sleeved on the connecting bolt 417, so as to be stably set in the wiring space 401.

[0070] like Figure 7 As shown, the cover 42 includes a top plate 420 and at least one side plate 421 connected to the top plate 420. The top plate 420 covers the top of the wiring platform 411, so that a wiring space 401 (such as Figure 4 and Figure 5 As shown). Figure 4 As shown, the side plate 421 extends toward the wiring platform 411 and is spaced apart from the wiring platform 411 to form a wiring gap 403. The wiring gap 403 is in communication with the wiring space 401.

[0071] The shielding plate 43 is connected to the side plate 421 and is adapted to slide up and down along the vertical direction Z relative to the side plate 421 to open or close the wiring gap 403 .

[0072] According to the electrical junction box 4 of the present application, when the busbar 402 is not installed, the shielding plate 43 slides downward along the vertical direction Z relative to the side plate 421 to close the wiring platform 411 to close the wiring gap 403. When installing the busbar 402, the shielding plate 43 slides upward along the vertical direction Z relative to the side plate 421 to open the wiring gap 403. Then, the busbar 402 is inserted into the wiring space 401 through the wiring gap 403 and electrically connected to the pole piece 302, thereby completing the installation of the busbar 402. During the installation of the busbar 402, it is only necessary to slide the shielding plate 43 upward, and there is no need to remove the shielding plate 43 from the side plate 421, thereby preventing the shielding plate 43 from falling into the electrical junction box 4 or the battery pack 2, thereby helping to prevent the battery pack 2 from malfunctioning. After the busbar 402 is removed (for example, when maintaining the busbar, battery module or battery pack), the shielding plate 43 can be slid downward to close the wiring gap 403, and there is no need to remove the shielding plate 43. In this way, even if the busbar 402 is disassembled and assembled multiple times, the electrical junction box 4 will not be damaged and does not need to be replaced, which helps to reduce costs.

[0073] In addition, when the busbar 402 is not installed, the shielding plate 43 closes the wiring gap 403, so that the electrical junction box 4 meets the corresponding protection requirements (for example, the requirements of IPXXB or IP2X). After the busbar 402 is installed, the busbar 402 will block the wiring gap 403, so that the electrical junction box 4 can also meet the above protection requirements.

[0074] It should be noted that a second mounting hole (not shown in the figure) matching with the connecting bolt 417 is also configured on the busbar 402. Thus, the busbar 402 can be sleeved onto the connecting bolt 417 (such as Figure 5 417 is a nut (not shown) for stably electrically connecting to the pole piece 302. In one embodiment, a nut (not shown) may be screwed onto the connecting bolt 417 to more tightly connect the busbar 402 to the pole piece 302. In addition, when assembling the busbar 402, the connecting bolt 417 also serves to pre-position the busbar 402.

[0075] In one embodiment, Figure 4 and Figure 7 As shown, the top plate 420 is generally rectangular, and the edge of the top plate 420 away from the module body 30 and the edge not used for connecting with the base 41 are provided with side plates 421 and shielding plates 43. In this way, the wiring gap 403 at any side plate 421 can be selected to install the busbar 402 to adapt to busbars of different layouts. It should be understood that the top plate 420 can also be configured into other shapes as needed, which will not be repeated here.

[0076] In one embodiment, the shielding plate 43 is formed separately and then slidably assembled to the side plate 421. Fig. 9 As shown, the shielding plate 43 includes a main body 431 and two sliding claws 432 respectively configured on two vertical edges 433 of the main body 431. The main body 431 is substantially parallel to the side plate 421. The two sliding claws 432 are slidably matched with the corresponding vertical edges 422 of the side plate 421. In this way, under the constraint and guidance of the sliding claws 432, the shielding plate 43 can slide vertically up and down smoothly along the side plate 421, and will not be separated from the side plate 421.

[0077] Alternatively, if Figure 7 As shown, two openings 423 are provided on the side plate 421, and the two openings 423 are spaced apart and distributed along the vertical direction Z. Fig. 9 As shown, the shielding plate 43 also includes an elastic plate 434, on which a first hook 437 is constructed. The elastic plate 434 extends vertically from the main body 431 and is aligned with the two openings 423, so that the first hook 437 can be snapped into the corresponding opening 423. According to this structure, when the busbar 402 is installed, the shielding plate 43 is slid upward along the vertical direction Z away from the wiring platform 411, and the first hook 437 is snapped into the upper opening 423, so that the shielding plate 43 stably opens the wiring gap 403 to allow the busbar 402 to pass through the wiring gap 403. When the busbar 402 is not installed, the shielding plate 43 is slid downward along the vertical direction Z close to the wiring platform 411, and the first hook 437 is snapped into the lower opening 423, so that the shielding plate 43 stably closes the wiring gap 403, even if the shielding plate 43 is subjected to a certain upward thrust, which helps to improve the safety of the electrical junction box 4.

[0078] It should also be understood that although Figure 7 Two openings 423 are shown, but more openings can be constructed in practice. In this way, the first hook 437 can be hooked into different openings 423 as needed, thereby changing the vertical size of the wiring gap 403 to adapt to busbars of different thicknesses. This helps to expand the scope of use of the electrical junction box 4.

[0079] Optionally, Figure 7 As shown, a protruding stopper 424 is constructed on both vertical edges 422 of the side plate 421. The sliding claw 432 is suitable for being stopped by the stopper 424. In this way, when the shielding plate 43 slides downward along the vertical direction Z until the sliding claw 432 contacts the stopper 424, the shielding plate 43 (or the sliding claw 432) will stop sliding under the obstruction of the stopper 424, thereby preventing the shielding plate 43 from falling off the side plate 421. In other embodiments, the stopper 424 may also be constructed on only one vertical edge 422 of the side plate 421, which will not be described in detail here.

[0080] In one embodiment, the blocking body 424 is located at the lower end of the vertical edge 422 of the side plate 421. Of course, the blocking body 424 can also be constructed at other positions of the vertical edge 422 of the side plate 421 according to actual conditions, which will not be repeated here.

[0081] Optionally, Figure 4 and Figure 5 As shown, the top plate 420 is hinged to the base 41. Thus, when installing the busbar 402, the top plate 420 (or the cover 42) is flipped open to expose the wiring space 401 and the wiring platform 411. Thus, the busbar 402 can be conveniently set on the wiring platform 411, which is convenient for the user to operate.

[0082] In one embodiment, Figure 4 and Figure 6 As shown, a hinge groove 415 is constructed on the base 41. Figure 4 and Figure 7 As shown, a hinge shaft 425 is configured on the top plate 420. The hinge shaft 425 is accommodated in the hinge groove 415 and is suitable for rotating relative to the hinge groove 415. Thus, the top plate 420 (or the cover 42) can be easily flipped away from the base 41 or rotated to cover the base 41. Of course, the hinge shaft 425 can also be set on the base 41, and the hinge groove 415 is correspondingly set on the top plate 420.

[0083] Alternatively, if Figure 8 As shown, a radially outwardly extending limit plate 427 is constructed on the hinge shaft 425. In this way, when the cover 42 is turned over to open, the limit plate 427 can abut against the hinge groove 415 to stop the cover 42 at a preset open position to prevent the cover 42 from interfering with the operator's operation.

[0084] In one embodiment, Figure 6 As shown, the base 41 includes a protrusion 412. The protrusion 412 protrudes in the vertical Z direction (i.e., toward the cover 42) relative to the wiring platform 411. The hinge groove 415 is configured on the protrusion 412. The protrusion 412 has a limiting effect on the busbar 402 and the pole piece 302 on the wiring platform 411 to prevent the busbar 402 and the pole piece 302 from accidentally shifting.

[0085] Also like Figure 7 As shown, the cover 42 further includes at least one supporting leg 426. The supporting leg 426 deviates from the hinge shaft 425 and the side plate 421 and extends from the top plate 420 toward the base 41 to abut against the base 41. According to this structure, the protrusion 412 and the supporting leg 426 jointly support the top plate 420 to be away from the wiring platform 411, so as to form a wiring space 401 between the top plate 420 and the wiring platform 411.

[0086] It should also be noted that if Figure 7 As shown, the support leg 420 is spaced apart from the side plate 421 to prevent the support leg 420 from affecting the sliding movement of the sliding claw 432 .

[0087] Optionally, Figure 4 and Figure 6 As shown, a support protrusion 416 is configured on the base 41. The support protrusion 416 extends toward the cover 42 and corresponds to the support leg 426. After the cover 42 is covered on the base 41, the support leg 426 abuts against the support protrusion 416, so that the support leg 426 and the support protrusion 416 jointly support the top plate 420. According to this structure, the support leg 426 can be configured to be shorter in length, which helps to improve the stability of the support leg 426, and then helps to further improve the stability of the cover 42.

[0088] Alternatively, if Figure 4 and Figure 7 As shown, a second elastic hook 429 is constructed on the top plate 420. The second hook 429 extends toward the base 41 and deviates from the side plate 421. A connecting groove 418 matching the second hook 429 is constructed on the base 41. Figure 4 As shown, after the cover 42 is put on the base 41, the second hook 429 is hooked into the connection groove 418, so that the cover 42 and the base 41 are stably connected together to prevent the cover 42 from being accidentally opened. When it is necessary to open the cover 42, the second hook 429 can be pressed to disengage it from the connection groove 418, and the cover 42 can be easily opened. In addition, after the cover 42 is put on the base 41, the second hook 429 also supports the top plate 420, so as to help improve the stability of the top plate 420.

[0089] In one embodiment, Figure 7 As shown, the second hook 429 is disposed at the corner of the top plate 420 and is spaced apart from the side plate 421. In this way, when the cover 42 needs to be opened, the second hook 429 can be easily elastically deformed. Figure 6 As mentioned above, the connection slot 418 is also constructed at the corresponding corner of the base 41. Of course, the second hook 429 can also be arranged at other appropriate positions of the top plate 420, and the same is true for the connection slot 418, which will not be repeated here.

[0090] In another embodiment, the second hook 429 may be disposed on the base 41 , and the connecting groove 418 may be disposed on the top plate 420 .

[0091] Fig.10 The electrical junction box 4 of the second embodiment is schematically shown. The electrical junction box 4 of the second embodiment is similar to the electrical junction box 4 of the first embodiment in its entirety, and only the differences between the two are described below.

[0092] like Fig.10 and Fig.11 As shown, the shielding plate 43 is connected to the lower edge 428 of the side plate 421 through the soft connection structure 436, and the side plate 421 forms a whole. The shielding plate 43 is folded inward or outward relative to the side plate 421 through the soft connection structure 436 to open the wiring gap 403; or extends toward the wiring platform 411 to close the wiring gap 403. According to this structure, when the bus 402 is installed, the shielding plate 43 will be pushed upward by the bus 402 and automatically folded inward or outward (such as Fig.10 When the busbar 402 is not installed, the shielding plate 43 will automatically unfold downward toward the wiring platform 411 and close the wiring gap 403 (as shown in FIG. Fig.10 As shown in FIG. 4 , when the electrical junction box 4 is used, there is no need to operate the shielding plate 43 separately, which further facilitates the operation of the operator.

[0093] Alternatively, if Fig.10 and Fig.11 As shown, the soft connection structure 436 is configured as a fold. The thickness at the fold is small, and the rigidity is therefore small, so that the shielding plate 43 can be folded relative to the side plate 421 along the fold. In addition, the shielding plate 43 and the side plate 421 can be integrally formed to facilitate the manufacture of the cover 42. In one embodiment, PA6 (nylon 6) or other flexible materials can be used to manufacture the cover 42, so that the shielding plate 43 can be flipped relative to the side plate 421.

[0094] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. An electrical junction box, characterized in that: include: A base (41), wherein the base (41) comprises a wiring board (411); a cover (42), the cover (42) comprising a top plate (420) and at least one side plate (421) connected to the top plate (420); the top plate (420) is arranged to cover the wiring platform (411) to form a wiring space (401) between the top plate (420) and the wiring platform (411); the side plate (421) extends toward the wiring platform (411) and is spaced apart from the wiring platform (411) to form a wiring gap (403); the wiring gap (403) is in communication with the wiring space (401); and A shielding plate (43), the shielding plate (43) is connected to the side plate (421) and is configured to be movable relative to the side plate (421) to open or close the wiring gap (403).

2. The electrical junction box according to claim 1, characterized in that: The shielding plate (43) is slidably mounted on the side plate (421), and the shielding plate (43) is configured to slide upward along the vertical direction (Z) relative to the side plate (421) to open the wiring gap (403), or to slide downward along the vertical direction (Z) relative to the side plate (421) to close the wiring gap (403).

3. The electrical junction box according to claim 2, characterized in that: The shielding plate (43) includes a main body (431) parallel to the side plate (421) and two sliding claws (432) respectively constructed on two vertical edges (433) of the main body (431); each of the sliding claws (432) is slidably engaged with the corresponding vertical edge (422) of the side plate (421).

4. The electrical junction box according to claim 3, characterized in that: A plurality of openings (423) are provided on the side plate (421), and the plurality of openings (423) are distributed at intervals along the vertical direction (Z); The shielding plate (43) further comprises an elastic plate (434), on which a first hook (437) is constructed; the elastic plate (434) extends from the main body (431) along the vertical direction (Z) and is aligned with the plurality of openings (423), so that the first hook (437) can be hooked into the corresponding opening (423).

5. The electrical junction box according to claim 3, characterized in that: A protruding stopper (424) is constructed on at least one vertical edge (422) of the side plate (421); the sliding claw (432) is suitable for being stopped by the stopper (424).

6. The electrical junction box according to claim 1, characterized in that: The shielding plate (43) is connected to the lower edge (428) of the side plate (421) through a soft connection structure (436) to form a whole with the side plate (421), and the shielding plate (43) is configured to be folded inward or outward relative to the side plate (421) through the soft connection structure (436) to open the wiring gap (403), or to extend toward the wiring platform (411) to close the wiring gap (403).

7. The electrical junction box according to claim 6, characterized in that: The soft connection structure (436) is configured as a fold.

8. The electrical junction box according to claim 1, characterized in that: The top plate (420) is hinged to the base (41).

9. The electrical junction box according to claim 8, characterized in that: A hinge shaft (425) is constructed on one of the top plate (420) and the base (41), and a hinge groove (415) is constructed on the other of the top plate (420) and the base (41); the hinge shaft (425) is rotatably accommodated in the hinge groove (415).

10. The electrical junction box according to claim 9, characterized in that: A limiting plate (427) extending radially outward is constructed on the hinge shaft (425), and the limiting plate (427) is suitable for abutting against the hinge groove (415).

11. The electrical junction box according to claim 9, characterized in that: The base (41) is configured with a protruding portion (412); the protruding portion (412) protrudes upward in a vertical direction (Z) relative to the wiring platform (411); and the hinge groove (415) is configured on the protruding portion (412).

12. The electrical junction box according to claim 9, characterized in that: The cover (42) further includes at least one supporting leg (426), which deviates from the hinge shaft (425) and the side plate (421) and extends from the top plate (420) toward the base (41) to abut against the base (41).

13. The electrical junction box according to claim 12, characterized in that: At least one supporting protrusion (416) is configured on the base (41), and the supporting protrusion (416) abuts against the corresponding supporting leg (426).

14. The electrical junction box according to claim 1, characterized in that: An elastic second hook (429) is constructed on one of the base (41) and the top plate (420); a connecting groove (418) matching the second hook (429) is constructed on the other of the base (41) and the top plate (420); and the second hook (429) is snapped into the connecting groove (418).

15. The electrical junction box according to claim 1, characterized in that: The base (41) further comprises a connecting bolt (417), wherein the connecting bolt (417) extends upward from the connection platform (411) along a vertical direction (Z).

16. A battery module, characterized in that: include: A module body (30), the module body (30) comprising a shell (301) and a plurality of battery cells arranged in the shell (301); as well as The electrical junction box (4) according to any one of claims 1 to 15, wherein the electrical junction box (4) is mounted on the housing (301).

17. A vehicle, characterized in that: include: A chassis (10), on which a carriage (11) is mounted; as well as A battery pack (2), the battery pack (2) being arranged on the chassis (10); a plurality of battery modules (3) according to claim 16 are arranged in the battery pack (2).

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