CN217035865U

CN217035865U - Car as a house battery

Info

Publication number: CN217035865U
Application number: CN202122250114.XU
Authority: CN
Inventors: 田开彪; 雷兴铃; 张涵; 艾世龙; 钟金炫; 李一鸣
Original assignee: Shenzhen Yijia Smart Technology Co ltd
Current assignee: Shenzhen Yijia Smart Technology Co ltd
Priority date: 2021-09-16
Filing date: 2021-09-16
Publication date: 2022-07-22
Anticipated expiration: 2031-09-16

Abstract

The utility model discloses a caravan battery, which comprises a battery pack, a shell and a protective shell, wherein the shell is internally provided with an installation cavity; the protective shell is fixedly installed in the installation cavity, and the protective shell is provided with a protective cavity matched with the battery pack so as to be embedded and installed in the battery pack. The technical scheme of the utility model is beneficial to improving the power utilization safety of the battery of the caravan.

Description

Car as a house battery

Technical Field

The utility model relates to the technical field of battery energy storage, in particular to a caravan battery.

Background

The motor home, also known as the home on the wheel, has two functions of the house and the vehicle, and is a movable vehicle type with essential basic facilities at home.

On a motor home, batteries are often used to provide electrical energy for various electrical devices. Although the manufacturing cost of the battery can be reduced by the simple structural combination, the electrical safety of the battery is not easily reduced due to insufficient protection of the battery from the case, and therefore, there is a need for improvement of the structure of the battery for the motor home by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a motor home battery, which aims to solve the technical problem that the battery in the prior art has low protection performance on a battery core and achieve the technical effect of improving the power utilization safety of the battery.

In order to achieve the purpose, the caravan battery provided by the utility model comprises a battery pack, a shell and a protective shell, wherein the shell is internally provided with a mounting cavity; the protective shell is fixedly installed in the installation cavity, and the protective shell is provided with a protective cavity matched with the battery pack so as to be embedded and installed in the battery pack.

Optionally, the housing includes a supporting bottom plate and an upper cover, the supporting bottom plate and the upper cover cooperate together to form the mounting cavity, and the protective shell is fixedly mounted on the supporting bottom plate.

Optionally, the protective shell includes two clamping plates disposed in parallel on the supporting base plate, and the two clamping plates are disposed at an interval to form the protective cavity.

Optionally, one side of the clamping plate, which faces away from the protection cavity, is concavely provided with a position avoiding cavity.

Optionally, the car as a house battery still include with the BMS protection shield that the group battery electricity is connected, the pinch-off blades follows supporting baseplate's length direction extends, keep away a chamber and follow the extending direction of pinch-off blades includes automatically controlled groove and function groove, the groove width in automatically controlled groove is greater than the groove width in function groove, for BMS protection shield installation.

Optionally, the protective shell further comprises a reinforcing rib arranged in the functional groove.

Optionally, the periphery of the clamping plate on the side away from the supporting bottom plate at least partially abuts against the inner side of the upper cover.

Optionally, a plurality of fasteners are spaced across the two clamping plates.

Optionally, the protective shell is screwed to the support base plate.

Optionally, the housing is provided with a positive output interface and a negative output interface, the positive output interface and the negative output interface are respectively electrically connected with the battery pack, and the positive output interface and the negative output interface are respectively used for plugging and unplugging an electric connection wire of electric equipment.

According to the caravan battery in the technical scheme, the protective shell is fixedly installed in the installation cavity of the shell, and the battery pack is embedded and installed in the protective cavity of the protective shell, so that the battery pack is protected by the two shells together, the phenomena of expansion, movement or collision and the like of the battery body of the battery pack in the installation cavity are avoided, and the improvement of the power utilization safety of the caravan battery is facilitated.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an embodiment of a caravan battery according to the present invention;

FIG. 2 is an exploded view of the caravan battery of FIG. 1;

FIG. 3 is a schematic structural view of the caravan of FIG. 2 with a part of the structure omitted;

FIG. 4 is a schematic structural view of the caravan of FIG. 3 with a part of the structure omitted;

FIG. 5 is an enlarged view of a portion of FIG. 4 at A;

FIG. 6 is a schematic structural view of the caravan of FIG. 3 without another part of the structure;

fig. 7 is a schematic structural diagram of another embodiment of the caravan battery of the present invention.

The reference numbers illustrate:

1. a housing; 11. a mounting cavity; 12. a support base plate; 13. an upper cover; 2. an output interface; 3. a battery module; 31. a protective shell; 311. a position avoiding cavity; 311a, an electric control groove; 311b, a functional groove; 312. a clamping plate; 313. a fixing member; 314. reinforcing ribs; 315. a protective cavity; 32. a battery pack; 321. a single battery; 312a and a pole column; 33. a BMS protection board; 34. an insulating sheet; 341. a fixing sheet; 342. a separator; 342a, a positioning hole; 35. connecting sheets; 351. a positioning part; 352. welding hole

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between the embodiments may be combined with each other, but must be based on the realization of the technical solutions by a person skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a caravan battery.

In the embodiment of the present invention, as shown in fig. 1 to 7, the caravan battery includes a battery pack 32, a housing 1 and a protective shell 31, wherein the housing 1 is provided with a mounting cavity 11 therein; the protective shell 31 is fixedly arranged in the mounting cavity 11, and the protective shell 31 is provided with a protective cavity 315 matched with the battery pack 32 so that the battery pack 32 can be embedded and mounted.

It can be understood that the caravan battery according to the technical scheme of the utility model is characterized in that the protective shell 31 is fixedly installed in the installation cavity 11 of the shell 1, and the battery pack 32 is embedded in the protective cavity 315 of the protective shell 31, so that the battery pack 32 is protected by the two shells together, the battery body of the battery pack 32 is prevented from being expanded, moved or collided in the installation cavity 11, and the power utilization safety of the caravan battery is improved.

Optionally, the housing 1 includes a supporting bottom plate 12 and an upper cover 13, the supporting bottom plate 12 and the upper cover 13 cooperate to form the mounting cavity 11, and the protective shell 31 is fixedly mounted on the supporting bottom plate 12. It can be understood that supporting baseplate 12 is arranged in each part of bearing in order to stably put in the car as a house, installs protecting crust 31 setting on supporting baseplate 12, is favorable to reducing protecting crust 31's the installation degree of difficulty on the one hand, and on the other hand also is favorable to improving protecting crust 31 in installation cavity 11 the stability of putting. It should be noted that the design of the present application is not limited thereto, and in other embodiments, the protective shell 31 may also be mounted on the peripheral wall of the mounting cavity 11, which is not limited thereto.

Optionally, the protective shell 31 comprises two clamping plates 312 arranged in parallel to the support base plate 12, the two clamping plates 312 being spaced apart to form a protective cavity 315. It can be appreciated that the design of the protective cavity 315 formed by the two clamping plates 312 on the supporting floor for assembling the battery pack 32 has the advantages of simple structure, easy implementation, etc.

Specifically, in the embodiment of the present application, the battery pack 32 includes a plurality of single batteries 321 arranged in a thin plate shape, and the plurality of single batteries 321 are sequentially stacked between the two clamping plates 312 (i.e., the protection cavity 315) along a connecting line direction of the two clamping plates 312. The connecting line direction of the two clamping plates 312 is the thickness direction of the single battery 321. Specifically, the thin plate-shaped single batteries 321 only expand in the thickness direction thereof when being used, and therefore, the design of the present application stacks a plurality of single batteries 321 in parallel, so that the plate surfaces of two adjacent single batteries 321 are abutted to each other to inhibit the expansion of the other one, and then the clamping plate 312 is used to clamp the two exposed single batteries 321, so that the expansion of the whole battery pack 32 can be effectively inhibited, the risk caused by the expansion of the single batteries 321 is effectively reduced, and the service life of the battery pack 32 is effectively prolonged. In addition, the battery cell 321 is arranged in a thin plate shape, so that the protective shell 31 does not need to protect the battery cell 321 at the narrow side of the battery cell 321, and thus, the material and cost of the protective shell 31 are reduced, and the volume of the product is effectively reduced.

Optionally, a position avoiding cavity 311 is concavely arranged on one side of the clamping plate 312, which faces away from the protection cavity 315. It can be understood that the avoiding cavity 311 is used for avoiding an installation space for installing other components (such as, but not limited to, components such as wires) of the caravan battery in the installation cavity 11, which is beneficial to reducing the volume and weight of the product. Of course, in other embodiments, the clamping plate 312 may not be provided with the avoiding cavity 311, so as to improve the structural strength of the clamping plate 312.

Optionally, the caravan battery further includes a BMS protection plate 33 electrically connected to the battery pack 32, the clamping plate 312 extends along the length direction of the support base 12, the space avoidance cavity 311 includes an electrical control slot 311a and a functional slot 311b along the extending direction of the clamping plate 312, and the slot width of the electrical control slot 311a is greater than the slot width of the functional slot 311b for the BMS protection plate 33 to be mounted. It can be understood that the BMS protection board 33 is provided with a BMS battery system, which is mainly for intelligently managing and monitoring the states of the unit batteries 321 to prevent overcharge and overdischarge of the unit batteries 321, thereby effectively extending the service lives of the unit batteries 321. In order to adapt to the larger structural size of the BMS protection plate 33, the size of a part of the structure of the clamping plate 312 is increased to form the electric control slot 311a capable of accommodating the BMS protection plate 33, so that the inner space of the mounting cavity 11 is effectively utilized, and the space utilization rate of the product is improved.

Optionally, the protective shell 31 further includes a reinforcing rib 314 disposed in the functional groove 311 b. It can be understood that the reinforcing ribs 314 can effectively improve the structural strength of the clamping plate 312, thereby facilitating the clamping plate 312 to suppress the expansion of the battery cells 321.

Optionally, the peripheral edge of the clamping plate 312 on the side remote from the support base 12 abuts at least partially against the inside of the upper cover 13. It can be understood that, by adopting such an arrangement, on one hand, the stability of the installation of the protective shell 31 in the installation cavity 11 is improved, and on the other hand, the structural strength of the outer shell 1 is also improved, so that the service life of the product is prolonged.

Optionally, a plurality of fasteners 313 are spaced across the two clamping plates 312. Specifically, the fixing member 313 is a fixing strip spanning two clamping plates 312. It can be understood that, by connecting the two clamping plates 312 through the fixing members 313 respectively, the two clamping plates 312 can be effectively maintained at fixed positions, and the two clamping plates 312 are prevented from being dislocated with each other, thereby improving the protection reliability of the protective shell 31. Specifically, the plurality of fixing members 313 are arranged at intervals on the peripheral side of the battery pack 32 to support against the battery pack 32, thereby effectively improving the mounting firmness of the battery pack 32.

Optionally, the protective shell 31 is screwed to the support base 12. It can be understood that the threaded connection between the protective shell 31 and the supporting base plate 12 is a fixed connection mode with wide application, and has the advantages of simple implementation, reliable connection and the like. Specifically, in this embodiment, threaded holes are formed between the protective shell 31 and the supporting base plate 12, and the caravan battery further includes bolts that can sequentially pass through the two threaded holes for threaded connection. It should be noted that the design of the present application is not limited thereto, and in other embodiments, the protective shell 31 and the supporting base plate 12 may be fixedly connected by other connecting methods, such as, but not limited to, welding, and the like.

Optionally, the housing 1 is provided with a positive output interface 2 and a negative output interface 2, the positive output interface 2 and the negative output interface 2 are respectively electrically connected to the battery pack 32, and the positive output interface 2 and the negative output interface 2 are respectively used for plugging and unplugging electrical connection wires of the electrical equipment. It can be understood that between the electric connecting wire of power supply interface on the car as a house battery of prior art and relay or consumer, adopt the mode of thread tightening to fix usually, it is very inconvenient, based on this, but this application is designed into pluggable structural style with positive, negative pole output interface 2, can improve user's power consumption convenience effectively.

Alternatively, the battery pack 32 includes a plurality of unit batteries 321 arranged in a stacked manner, and any two adjacent unit batteries 321 may be electrically connected by the connecting sheet 35; the motor home battery further comprises an insulating sheet 34, and the insulating sheet 34 is arranged between two adjacent single batteries 321; the insulating sheet 34 may protrude from the periphery of the unit cell 321 to separate adjacent two connecting sheets 35.

It can be understood that, by arranging the insulation sheet 34 between two adjacent single batteries 321, when the connection sheet 35 needs to be welded to the single battery 321, the insulation sheet 34 can be moved to separate the single battery 321 needing to be welded from the single battery 321 needing not to be welded, so that the safety of welding the plurality of single batteries 321 is effectively improved.

Optionally, the insulation sheet 34 includes a fixing sheet 341 disposed between two adjacent unit cells 321, and the shape of the fixing sheet 341 is adapted to the shape of the unit cell 321. Specifically, the cross section of the fixing plate 341 is the same as the cross section of the single battery 321 in area, so that after the insulating sheet 34 is inserted between two adjacent single batteries 321, a user can conveniently judge whether the insulating sheet 34 is installed in place based on whether the periphery of the insulating sheet 34 is aligned with the edge of the single battery 321, and the convenience in installing the battery module 3 can be improved; in addition, the shape between the fixing plate 341 and the single battery 321 is adapted, which is also beneficial to avoiding the fixing plate 341 from moving between two adjacent single batteries 321, and is beneficial to improving the installation stability of the fixing plate 341.

Optionally, the insulation sheet 34 includes a separation sheet 342 for separating two adjacent connection sheets 35; wherein, the first and the second end of the pipe are connected with each other,

the partition plate 342 extends from a partial periphery of one side of the fixing plate 341. It can be understood that, in the present embodiment, the separating plate 342 is connected to only a portion of the periphery of one side of the fixing plate 341, that is, the separating plate 342 is used to connect the periphery of the fixing plate 341, and the peripheries connected to the fixing plate 341 and the separating plate 342 are not arranged in equal length, which is beneficial to reduce the structural material of the insulating sheet 34, reduce the manufacturing cost of the insulating sheet 34, and reduce the occupied space of the insulating sheet 34.

Alternatively, the partition plate 342 is provided with a positioning hole 342a therethrough, and the connecting plate 35 is provided with a positioning portion 351 adapted to the positioning hole 342 a. It can be understood that the positioning hole 342a is formed through the separating plate 342 to facilitate the positioning of the connecting plate 35 during the assembling process, and the fixing of the position of the connecting plate 35 is also beneficial to the welding process of the connecting plate 35 after the positioning portion 351 of the connecting plate 35 is inserted into the positioning hole 342 a.

Alternatively, the unit cells 321 are thin plate-shaped.

Alternatively, the unit cell 321 includes a thin peripheral surface provided with the terminal 312a electrically connected to the connecting sheet 35, and a lamination surface provided on opposite sides of the thin peripheral surface; any two adjacent poles 312a are arranged in a staggered manner in the thickness direction of the single battery 321. It can be understood that the scheme of setting up a plurality of utmost points post 312a on same extension line is excluded to this embodiment to avoid after connecting piece 35 connects two adjacent utmost points post 312a, the condition that a plurality of connection pieces 35 lie in same extension line (this mode of arranging is unfavorable for increasing the interval between the connection piece 35) appears, that is to say, through adjusting arranging of a plurality of utmost points post 312a, be favorable to increasing the interval between the connection piece 35, and then be favorable to avoiding appearing the phenomenon of welding the short circuit when welding connection piece 35.

Optionally, the connecting plate 35 is provided with two welding holes 352 corresponding to the two adjacent poles 312a one to one. It is understood that the welding holes 352 also have a positioning function, and are arranged to facilitate the welding process of the connecting sheet 35 by the assembling personnel and the assembling equipment.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings, or any other related technical fields, which are directly or indirectly applied to the present invention, are included in the scope of the present invention.

Claims

1. A caravan battery, comprising:

a battery pack;

the shell is internally provided with a mounting cavity;

the protective shell is fixedly installed in the installation cavity, and the protective shell is provided with a protective cavity matched with the battery pack so as to be embedded and installed in the battery pack.

2. The caravan battery as claimed in claim 1, wherein the housing comprises a support base plate and an upper cover, the support base plate and the upper cover cooperatively form the mounting cavity, and the protective shell is fixedly mounted on the support base plate.

3. The caravan battery according to claim 2, wherein the protective case comprises two clamping plates provided in parallel to the support base plate, the two clamping plates being spaced apart to form the protective cavity.

4. The caravan battery as claimed in claim 3, wherein a position-avoiding cavity is concavely formed on one side of the clamping plate, which faces away from the protection cavity.

5. The caravan battery according to claim 4, further comprising a BMS protection board electrically connected to the battery pack, wherein the clamping board extends along a length direction of the support base, the clearance cavity comprises an electric control groove and a functional groove along an extending direction of the clamping board, and a groove width of the electric control groove is larger than a groove width of the functional groove, so that the BMS protection board can be mounted.

6. The caravan battery of claim 5, wherein the protective housing further comprises a reinforcing rib disposed within the functional slot.

7. A caravan battery as claimed in claim 3, wherein the periphery of a side of the clamping plate remote from the support floor is at least partially in abutment with the inner side of the upper cover.

8. The caravan battery of claim 3, wherein a plurality of fasteners are spaced across the two clamping plates.

9. The caravan battery of claim 2, wherein the protective shell is threadedly secured to the support floor.

10. The caravan battery according to any one of claims 1 to 9, wherein the housing is provided with a positive output interface and a negative output interface, the positive output interface and the negative output interface are respectively electrically connected with the battery pack, and the positive output interface and the negative output interface are respectively used for plugging and unplugging an electric connection wire of electric equipment.