CN218975668U - Battery pack box and battery pack - Google Patents

Abstract

The application discloses a battery pack box body, which comprises a frame (100) and a plugging part (200), wherein the frame (100) is positioned on a bottom plate of the battery pack box body and surrounds the bottom plate to form a containing cavity; the frame (100) is provided with a first cavity, the first cavity is provided with a first opening (101), the blocking part (200) is detachably arranged on the first opening (101), and the blocking part (200) is matched with the first opening (101) in a blocking mode. The scheme can solve the problem that the operation is time-consuming and labor-consuming when the frame of the battery pack box body related to the related technology is used for sealing the opening in a welding, gluing and other modes. The application discloses a battery pack.

Description

Battery pack box and battery pack

Technical Field

The application belongs to the technical field of electric automobiles, and particularly relates to a battery pack box and a battery pack.

Background

The battery pack is an important component of the electric automobile, and provides an electric power source for the electric automobile, so as to provide electric energy for the electric automobile. The battery pack box body is a component of the battery pack, and not only plays a role in protecting batteries of the battery pack, but also provides an installation foundation for the battery pack, so that the battery pack is stably installed in the electric automobile.

The design of the battery pack box body also needs to consider the weight, so that extra energy consumption to the electric automobile caused by overweight is avoided. Based on this, the related art battery pack case is designed with a cavity, and in this structure, the cavity has an opening. Although these structures can reduce the weight, the cavity is exposed through the opening, and thus foreign matters such as silt and rainwater are relatively easy to intrude. In addition, larger wind noise is generated in the running process of the electric automobile.

To alleviate this problem, designers may perform plugging operations. In the related art, a designer usually adopts a manner of welding a plug or applying glue to plug the opening. However, these operations are time consuming and laborious, which is disadvantageous for improving the working efficiency.

Disclosure of Invention

The utility model discloses a battery pack box body and a battery pack, which are used for solving the problem that the operation of the battery pack box body in the related art is time-consuming and labor-consuming when an opening is plugged.

In order to solve the technical problems, the utility model provides the following technical scheme:

in a first aspect, an embodiment of the application discloses a battery pack box body, which comprises a frame and a plugging part, wherein the frame is arranged on a bottom plate of the battery pack box body and surrounds the bottom plate to form a containing cavity; the frame is equipped with first cavity, first cavity has first opening, shutoff portion detachably install in first opening, just shutoff portion with first opening shutoff cooperation.

In a second aspect, an embodiment of the present application discloses a battery pack, including the battery pack case and the battery described above, the battery is disposed in the accommodating cavity of the battery pack case.

The technical scheme adopted by the utility model can achieve the following technical effects:

the embodiment of the application discloses battery pack box body, through addding shutoff portion and installing shutoff portion detachably on first opening to realize the shutoff to first cavity. Compare among the related art through mode shutoff first opening such as welding or glue, the shutoff portion detachably that this application embodiment disclosed install in first opening for operating personnel directly install the shutoff portion in first opening part can, this kind of structure easy operation, convenience, consequently can solve the problem that wastes time and energy that exists through modes such as welding or glue realization shutoff.

Drawings

Fig. 1 is a schematic structural view of a frame of a battery pack case according to an embodiment of the present application;

fig. 2 is a schematic view of a part of the structure of a battery pack case according to an embodiment of the present application;

fig. 3 is an exploded view of a part of the structure of a battery pack case according to an embodiment of the present application;

FIG. 4 is an exploded view of one manner of attachment of the closure portion to the first opening as disclosed in the embodiments of the present application;

fig. 5 is an exploded view of another connection of the closure portion and the first opening as disclosed in the embodiments of the present application.

Reference numerals illustrate:

100-frame, 111-long frame, 112-wide frame, 113-connecting fin, 114-second threaded connector, 101-first opening, 102-snap slot or snap hole, 103-first connecting hole,

200-a blocking part, 210-a clamping protrusion, 220-a threaded hole,

300-first threaded connection.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to specific embodiments of the present utility model and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The technical scheme disclosed by each embodiment of the utility model is described in detail below with reference to the accompanying drawings.

The embodiment of the application discloses battery pack box, the disclosed battery pack box is the peripheral component of battery pack, and battery pack box can provide installation space for the battery of battery pack, and then carries out the protection to the battery.

Referring to fig. 1 to 5, a battery pack case disclosed in an embodiment of the present application includes a frame 100 and a blocking portion 200.

The frame 100 is a main body member of the battery pack case, and the frame 100 not only can ensure the overall strength of the battery pack case, but also can exert a fixed connection with a mounting base (e.g., a frame) on an electric vehicle to realize the mounting of the entire battery pack on the electric vehicle. The battery pack case includes a bottom plate. Specifically, the frame 100 is located on a bottom plate of the battery pack case, and forms a receiving chamber with the bottom plate, and the battery of the battery pack is disposed in the receiving chamber.

The frame 100 is provided with a first cavity having a first opening 101, i.e. the first cavity communicates with the external environment through the first opening 101. The frame 100 can reduce its own weight by providing the first cavity and can reduce consumption of raw materials, thereby reducing costs. Alternatively, the frame 100 may be a metal structural member, and the metal frame 100 has an advantage of high strength. Of course, the frame 100 may also be made of a non-metal material with higher strength, and the specific material of the frame 100 is not limited in the embodiments of the present application.

The blocking portion 200 is used for blocking the first opening 101, so as to avoid the first cavity from being directly exposed to the external environment through the first opening 101. The first opening 101 is blocked by the blocking part 200, so that air flow can be prevented from entering the first cavity through the first opening 101 in the running process of the electric automobile, and larger wind noise can be avoided. In the embodiment of the present application, the blocking portion 200 is detachably mounted to the first opening 101, and the blocking portion 200 is in blocking engagement with the first opening 101. Specifically, the shape of the blocking portion 200 may be adapted to the shape of the first opening 101, thereby achieving a better fit.

Of course, the blocking portion 200 may not completely seal the first opening 101, and wind noise may be reduced. In a preferred embodiment, the blocking portion 200 and the first opening 101 may be in sealing fit, so that the first cavity is completely isolated from the external environment, and wind noise can be reduced better.

The battery pack box body disclosed by the embodiment of the application is provided with the plugging part 200 in an additionally arranged manner, and the plugging part 200 is detachably arranged on the first opening 101, so that the plugging of the first cavity is realized. Compared with the prior art in which the first opening 101 is plugged by welding or glue coating and the like, the plugging portion 200 disclosed in the embodiment of the present application is detachably mounted on the first opening 101, so that an operator can directly mount the plugging portion 200 on the first opening 101, and the structure is simple and convenient to operate, so that the problem of time and labor waste existing in plugging by welding or glue coating and the like can be solved.

In this embodiment, the blocking portion 200 may be a plate-shaped structural member, which is beneficial for the blocking portion 200 to cooperate with the first opening 101, and meanwhile, the blocking portion 200 may be a machined molding (e.g., a cutting member), an injection molding member, or a casting member, which is not limited in this embodiment. Of course, the blocking portion 200 may also be a block-shaped structure (e.g., a square block), and the specific shape of the blocking portion 200 is not limited in the embodiments of the present application.

In a further technical solution, the frame 100 may be a square frame structure, a round frame structure, or a polygonal structure, which is not limited to the shape of the frame 100 in the embodiment of the present application.

In view of the general shape of the battery, in a preferred embodiment, the frame 100 may be a square structural member, which is advantageous for forming a battery pack case having a square receiving chamber, so as to facilitate assembling the battery in the square receiving chamber.

In a further embodiment, the frame 100 may include a long frame 111, where the long frame 111 is disposed along a length direction of the frame structure, and the long frame 111 may be fixedly disposed on a bottom plate of the frame structure in a width direction. The long frame 111 is equipped with first cavity, and this kind of structure can reduce the weight of frame 100, and the both ends of long frame 111 all are equipped with first opening 101, and every first opening 101 all is equipped with shutoff portion 200, and by shutoff portion 200 seal cover to with first opening 101 shutoff, and then better with first cavity and external environment isolation. This structure realizes the blocking of the first openings 101 at both ends of the long frame 111.

In other embodiments, the frame 100 may further include a wide frame 112, where the wide frame 112 is disposed along the width direction of the frame structure, and two long frames 111 are disposed on two sides of the width direction of the frame structure. The number of the wide frames 112 is plural, and the wide frames 112 are distributed between the two long frames 111 at intervals, that is, the wide frames 112 are arranged at intervals along the length direction of the frame structural member, and part of the wide frames 112 can be arranged on the bottom plate of the frame structural member in the length direction. The wide frame 112 may be provided with a second cavity, where the second cavity has second openings respectively located at two ends of the wide frame 112, and the second openings are blocked by the long frames 111 located at the same side of the second openings, and the second openings at two ends of the wide frame 112 can be abutted against the inner side surfaces of the long frames 111 by the structure, so that the second openings of the wide frame 112 are blocked by the long frames 111 located at the same side of the second openings. This structure does not need to provide a special plugging portion 200 adapted to the second opening, but realizes plugging of the second opening by the cooperation between the long frame 111 and the wide frame 112, which is advantageous in simplifying the structure of the frame 100.

In a further technical solution, the wide frame 112 may be fixedly connected with the long frame 111 by welding, connecting a connecting piece, riveting, or the like. The specific connection manner between the wide frame 112 and the long frame 111 is not limited in the embodiments of the present application.

In the battery pack case disclosed in the embodiment of the application, the frame 100 may further include two connection fins 113, and the two long frames 111 are connected with the connection fins 113 on opposite sides, that is, the connection fins 113 are installed at one end of the long frames 111 deviating from the accommodating cavity. Specifically, the number of the connection fins 113 on each long frame 111 may be plural or one, which is not limited in the embodiment of the present application, and when a plurality of connection fins 113 are provided on the long frame 111, the connection fins 113 may be provided on the long frame 111 at intervals. The connection fin 113 can enhance the strength of the frame 100, and at the same time, the connection fin 113 also plays a role in connection, so that the battery pack box body can be connected with other components of the electric automobile, and the battery pack can be mounted on the electric automobile. The structure does not need to be provided with a connecting structure on the long frame 111 or the wide frame 112, and the installation of the battery pack on the electric automobile can be ensured on the premise of not affecting the main structure strength of the whole battery pack box body.

In a further technical solution, the connecting fin 113 may also be provided with a first cavity and a first opening 101, both ends of the connecting fin 113 are provided with the first cavity and the first opening 101, and each first opening 101 provided on the connecting fin 113 may also be provided with a blocking portion 200, where the blocking portion 200 is adapted to the shape of the first opening 101 of the connecting fin 113. The plugging portion 200 is installed behind the first opening 101 and can isolate the first cavity from the external environment, so that wind is prevented from entering the first cavity when the electric automobile runs, and larger wind noise is avoided in the running process of the electric automobile.

In the embodiment of the present application, the connection fin 113 may be equipped with a second screw connection 114, and the connection fin 113 may be detachably and fixedly connected with a mounting base (e.g., a frame) on an electric vehicle through the second screw connection 114. Of course, the connection fin 113 may be equipped with other connection structures such as rivets to achieve a fixed connection with the installation base of the electric vehicle, and the embodiment of the present application is not limited.

Of course, as shown in fig. 1, in the case where the connection fin 113 is equipped with the second screw connectors 114, the second screw connectors 114 may be plural and spaced apart in the extending direction of the connection fin 113 to improve the fixing connection effect while also relieving the connection stress.

As described above, the blocking portion 200 is detachably connected to the first opening 101. There are various ways of achieving the detachable connection. For example, the plugging portion 200 may be detachably connected to the first opening 101 by means of a snap-fit, and for example, the plugging portion 200 may be detachably connected to the first opening 101 by means of riveting. For another example, the blocking portion 200 may be detachably connected to the first opening 101 by a first screw connector 300. The detachable connection mode has the advantages of simple structure, easy realization and the like.

Specifically, the plugging portion 200 may include a locking protrusion 210, the inner wall of the first opening 101 may be provided with a locking groove or a locking hole 102, and the plugging portion 200 may be detachably connected to the first opening 101 through the locking protrusion 210 and the locking groove or the locking hole 102. During a particular assembly process, the snap-fit protrusion 210 is inserted into the first opening 101 and snap-fits into the snap-fit groove or snap-fit hole 102, thereby achieving a detachable connection. The snap-in protrusion 210 is easier to form, making the fabrication of the blocking portion 200 simpler and also convenient to assemble. In the assembly process, the operator only needs to press in place.

As shown in fig. 4, in a further technical solution, two clamping protrusions 210 may be provided, two clamping grooves or clamping holes 102 may be provided, and the two clamping protrusions 210 are respectively provided on two opposite sidewalls of the first opening 101, after the assembly is completed, the two clamping protrusions 210 are respectively matched with the clamping grooves or the clamping holes 102 on the two sidewalls in a clamping manner, and in this assembly manner, the plugging portion 200 and the first opening 101 can be detachably buckled through more buckling positions, so that the connection stability is improved.

In a possible embodiment, the plugging portion 200 may be provided with the threaded hole 220, the inner wall of the first opening 101 may be provided with the first connecting hole 103, the plugging portion 200 is detachably connected with the first opening 101 through the first connecting hole 103 and the first threaded connecting piece 300 in threaded connection with the threaded hole 220, specifically, the first threaded connecting piece 300 is in threaded fit with the threaded hole 220 after passing through the first connecting hole 103, so that the plugging portion 200 is detachably connected with the frame 100 through the first threaded connecting piece 300. Specifically, the first screw connection 300 may be a screw, a bolt, or the like.

As shown in fig. 5, in a further alternative solution, two first connecting holes 103 may be provided and respectively opened on two opposite sidewalls of the first opening 101, and two threaded holes 220 are provided, and accordingly, two first threaded connectors 300 are provided, and two first threaded connectors 300 respectively pass through the corresponding first connecting holes 103 and are in threaded connection with the threaded holes 220, so that the plugging portion 200 can be detachably connected with the first opening 101 through a plurality of connecting structures, and further, the stability of connection can be improved.

In another possible embodiment, the plugging portion 200 may be embedded in a nut, the nut has a threaded hole 220, the inner wall of the first opening 101 may be provided with a first connection hole 103, and the plugging portion 200 is detachably connected to the first opening 101 by a first screw connection 300 penetrating through the first connection hole 103 and being screwed with the nut.

In other possible embodiments, the first threaded connection 300 may be a self-tapping screw, and the inner wall of the first opening 101 may be provided with the first connection hole 103, and the self-tapping screw passes through the first connection hole 103 and then is introduced into the plugging portion 200, and finally the plugging portion 200 is detachably connected to the first opening. The mode does not need to specially provide a threaded hole, and the threaded hole matched with the tapping screw can be formed automatically in the assembly process, so that the manufacturing is certainly more convenient.

Alternatively, the blocking portion 200 may be provided with a second connection hole, and the inner wall of the first opening 101 may be provided with a first connection hole 103, where the blocking portion 200 is detachably connected to the first opening 101 by riveting. Specifically, the rivet gun can be used for installing rivets into the first connecting hole 103 and the second connecting hole, so that the plugging portion 200 can be connected with the first opening 101.

Based on the battery pack case disclosed in the embodiments of the present application, the embodiments of the present application further disclose a battery pack, which may include the battery pack case of any of the above embodiments. The battery pack disclosed by the embodiment of the application further comprises a battery, and the battery is assembled in the accommodating cavity of the battery pack box body.

In the embodiments of the present utility model, the different embodiments are mainly described, and as long as the different optimization features of the embodiments are not contradictory, the different optimization features can be combined to form a better embodiment, and in consideration of brevity of line text, the description is omitted here.

The embodiments of the present utility model have been described above with reference to the accompanying drawings, but the present utility model is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present utility model and the scope of the claims, which are to be protected by the present utility model.

Claims (10)

1. The battery pack box is characterized by comprising a frame (100) and a plugging part (200), wherein the frame (100) is arranged on a bottom plate of the battery pack box and surrounds the bottom plate to form a containing cavity;

the frame (100) is provided with a first cavity, the first cavity is provided with a first opening (101), the blocking part (200) is detachably arranged on the first opening (101), and the blocking part (200) is matched with the first opening (101) in a blocking mode.

2. The battery pack case according to claim 1, wherein the frame (100) is a square frame structure, the frame (100) comprises a long frame (111), the long frame (111) is arranged along the length direction of the square frame structure, the long frame (111) is provided with the first cavity, two ends of the long frame (111) are provided with the first openings (101), each first opening (101) is provided with the blocking portion (200), and the first openings are covered by the blocking portion (200) in a sealing manner.

3. The battery pack case according to claim 2, wherein the frame (100) includes a wide frame (112), the wide frame (112) is disposed along a width direction of the frame structural member, the long frame (111) is two, the wide frame (112) is plural and is distributed between the two long frames (111) at intervals, the wide frame (112) is provided with a second cavity, the second cavity has second openings respectively disposed at both ends of the wide frame (112), and the second openings are sealed and blocked by the long frames (111) disposed at the same side thereof.

4. The battery pack case according to claim 2, wherein the frame (100) further comprises a connection fin (113), the connection fin (113) being connected at an end of the long rim (111) facing away from the receiving cavity.

5. The battery pack case according to claim 4, wherein the connection fin (113) is also provided with the first cavity and the first opening (101), and the blocking portion (200) is also provided at the first opening (101) provided in the connection fin (113).

6. The battery pack case according to claim 1, wherein the blocking portion (200) is a plate-like structural member.

7. The battery pack case according to any one of claims 1 to 6, wherein the blocking portion (200) is detachably connected to the first opening (101) by means of a snap-fit, or the blocking portion (200) is detachably connected to the first opening (101) by means of riveting, or the blocking portion (200) is detachably connected to the first opening (101) by means of a first screw connection (300).

8. The battery pack case according to claim 7, wherein the blocking portion (200) includes a snap protrusion (210), a snap groove or a snap hole (102) is formed in an inner wall of the first opening (101), and the blocking portion (200) is in snap fit with the snap groove or the snap hole (102) through the snap protrusion (210).

9. The battery pack case according to claim 7, wherein the blocking portion (200) is provided with a screw hole (220), a first connection hole (103) is provided in an inner wall of the first opening (101), and the blocking portion (200) is detachably connected to the first opening (101) by passing through the screw hole (220) and the first screw connector (300) screw-connected to the first connection hole (103).

10. A battery pack, characterized by comprising the battery pack case body according to any one of claims 1 to 9, a battery, the battery being disposed in a housing cavity of the battery pack case body.

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