CN219203411U

CN219203411U - Battery upper cover and battery system

Info

Publication number: CN219203411U
Application number: CN202320222425.1U
Authority: CN
Inventors: 谭永胜; 刘明伟; 王毅
Original assignee: Hunan Xingbida Netlink Technology Co Ltd
Current assignee: Hunan Xingbida Netlink Technology Co Ltd
Priority date: 2023-02-15
Filing date: 2023-02-15
Publication date: 2023-06-16
Anticipated expiration: 2033-02-15

Abstract

The utility model relates to the technical field of power batteries, and provides a battery upper cover and a battery system, wherein the battery upper cover comprises a bottom plate and a high-voltage box; the high-pressure tank is arranged on the bottom plate. The high-voltage box is integrated on the bottom plate of the battery upper cover, and the design can solve the installation problem of the high-voltage box, does not need to independently set an assembly space for the high-voltage box, reduces the space occupation rate of elements and improves the integration level of the battery upper cover; meanwhile, the input cost of the whole design is reduced. Therefore, the battery upper cover provided by the utility model can improve the integration level of the battery upper cover, reduce the space occupation rate and the cost, and solve the problem to be solved in the field at present.

Description

Battery upper cover and battery system

Technical Field

The utility model relates to the technical field of power batteries, in particular to a battery upper cover and a battery system.

Background

At present, the upper cover of the power battery is usually a structural member with only a sealing function, and elements such as a high-pressure tank, a water cooling unit and the like cannot be integrated; in practical design, the structure for fixing the high-pressure tank and the water cooling unit needs to be separately arranged, so that the design cost is increased, and the installation space of elements is increased.

Therefore, how to improve the integration level of the upper cover of the battery and reduce the space occupation rate and the cost is a difficult problem to be solved in the field at present.

Disclosure of Invention

The utility model provides a battery upper cover, which can improve the integration level of the battery upper cover, reduce the space occupation rate and the cost and solve the problem to be solved in the field at present. The utility model also provides a battery system comprising the battery upper cover, so that the integration level of the battery upper cover can be improved, the space occupation rate and the cost are reduced, and the problem to be solved in the field at present is solved.

A first aspect of the present utility model provides a battery upper cover comprising a base plate and a high-voltage tank; the high-pressure tank is arranged on the bottom plate.

According to the battery upper cover provided by the utility model, the bottom plate is also provided with a water cooling unit.

According to the battery upper cover provided by the utility model, the mounting strip is arranged on the bottom plate, and the water cooling unit is arranged on the bottom plate through the mounting strip.

According to the battery upper cover provided by the utility model, the periphery of the bottom plate is provided with the frame, and the bottom plate is connected with the battery box body through the frame.

According to the battery upper cover provided by the utility model, the refrigerant flow passage is arranged in the bottom plate.

According to the battery upper cover provided by the utility model, the high-voltage box comprises a coaming and a cover plate;

the coaming is arranged on the bottom plate;

the cover plate is arranged at the top of the coaming and forms a cavity structure with the coaming.

According to the battery upper cover provided by the utility model, the joint of the cover plate and the coaming is provided with the sealing gasket.

A second aspect of the present utility model provides a battery system comprising a battery case and a battery top cover as described above.

According to the battery system provided by the utility model, the battery box body is provided with the hoisting bracket.

According to the battery system provided by the utility model, the battery box body is also provided with the positioning structure.

The utility model provides a battery upper cover, which comprises a bottom plate and a high-voltage box; the high-pressure tank is arranged on the bottom plate. The high-voltage box is integrated on the bottom plate of the battery upper cover, and the design can solve the installation problem of the high-voltage box, does not need to independently set an assembly space for the high-voltage box, reduces the space occupation rate of elements and improves the integration level of the battery upper cover; meanwhile, the input cost of the whole design is reduced. Therefore, the battery upper cover provided by the utility model can improve the integration level of the battery upper cover, reduce the space occupation rate and the cost, and solve the problem to be solved in the field at present.

Drawings

In order to more clearly illustrate the utility model or the technical solutions of the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a battery top cover in an embodiment of the utility model;

fig. 2 is an exploded view of a battery top cover in an embodiment of the present utility model;

FIG. 3 is a schematic view of a battery top cover in an embodiment of the utility model;

fig. 4 is a schematic view of a battery system in an embodiment of the present utility model.

Reference numerals:

1. a bottom plate; 2. a high pressure tank; 3. a mounting bar; 4. a battery case;

11. a frame;

21. coaming plate; 22. a cover plate;

211. and a vertical plate.

Detailed Description

For the purpose of making 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 the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present utility model, not all embodiments. 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.

In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In describing embodiments of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled," "coupled," and "connected" should be construed broadly, and may be either a fixed connection, a removable connection, or an integral connection, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in embodiments of the present utility model will be understood in detail by those of ordinary skill in the art.

In embodiments of the utility model, unless expressly specified and limited otherwise, a first feature "up" or "down" on a second feature may be that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

The battery top cover and the battery system in this embodiment will be described below with reference to fig. 1 to 4; it should be understood that the following are merely illustrative embodiments of the present utility model, and are not intended to limit the present utility model in any way.

The battery upper cover provided by the specific embodiment mainly comprises a bottom plate 1 and a high-pressure box 2; and the high-voltage box 2 is arranged on the bottom plate 1, namely, the high-voltage box 2 is of a structure integrated on the bottom plate 1, so that the upper battery cover has the installation function of the high-voltage box 2.

The high-voltage box 2 is integrated on the bottom plate 1 of the upper battery cover, and the design can solve the installation problem of the high-voltage box 2, and does not need to independently set an assembly space for the high-voltage box 2, so that the space occupation rate of elements is reduced, and the integration level of the upper battery cover is improved; meanwhile, the input cost of the whole design is reduced. Therefore, the battery upper cover provided by the utility model can improve the integration level of the battery upper cover, reduce the space occupation rate and the cost, and solve the problem to be solved in the field at present.

It should be noted that the high voltage box 2 in this embodiment may be a BDU, that is, a battery pack short circuit unit, which is a type of high voltage distribution box.

Further, in the battery upper cover provided in this embodiment, the water cooling unit may be further disposed on the bottom plate 1.

In one embodiment, the bottom plate 1 may be provided with a mounting strip 3, and the water-cooling unit may be disposed on the bottom plate 1 through the mounting strip 3; and the positions and the number of the mounting strips 3 can be set according to actual needs, so that the mounting requirements of the water cooling unit are met.

The battery upper cover provided by the embodiment can be integrated with the assembly of the water cooling unit, so that the installation requirement of the water cooling unit is met, the assembly design of the water cooling unit can be omitted in actual design, the space occupancy rate and cost are further reduced, the problem in the field at the present stage is solved, and the defect of single function of the battery upper cover at the present stage is overcome.

In one embodiment, please refer to fig. 1, the number of the mounting bars 3 may be four, the four mounting bars 3 are all disposed on the bottom plate 1, and the four mounting bars 3 are evenly distributed on two sides of the battery box, that is, two mounting bars 3 are disposed on two sides of the battery box, so that the assembly of the water cooling unit is facilitated.

According to the battery upper cover provided by the embodiment, the periphery of the bottom plate 1 can be provided with the frame 11, and referring to fig. 4, when in actual assembly, the bottom plate 1 can be connected with the battery box body 4 through the frame 11, so that the sealed assembly of the battery upper cover and the battery box body 4 is completed.

Further, in order to better satisfy actual sealed use demand, can also set up sealed pad in the position that bottom plate 1 and battery box 4 are connected, and then improve the sealed effect of battery box 4.

In the actual design, in order to satisfy the liquid cooling demand of high-pressure tank 2, can be equipped with the runner of refrigerant in the inside of bottom plate 1, and then make the refrigerant get into from this runner to play the efficiency to high-pressure tank 2 and battery box 4 cooling, improve the radiating effect of high-pressure tank 2 and battery box 4, avoid the heat to gather in high-pressure tank 2 and battery box 4 inside, guarantee the normal work of high-pressure tank 2 and battery box 4.

Referring to fig. 1 and 2, the high-voltage tank 2 may include a shroud 21 and a cover plate 22, where the shroud 21 may be disposed on the bottom plate 1, and the shroud 21 may be surrounded by a pair of vertical plates 211, that is, the shroud 21 may be annular surrounded by a plurality of vertical plates 211, referring to fig. 2; the cover plate 22 may be disposed on top of the shroud 21, and the cover plate 22 and the shroud 21 may enclose a cavity structure; specifically, the base plate 1, the coaming 21 and the cover plate 22 can enclose a space for assembling the plug connector inside the high-pressure tank 2, and further meet the actual assembly requirement of the high-pressure tank 2.

Furthermore, in order to simplify the assembly of the plug connector inside the high-pressure tank 2, a fixed structure can be arranged on the bottom plate 1; the setting of fixed knot constructs is used for fixed various plug connectors in the high-pressure tank 2, and then satisfies the actual assembly demand of the inside component of high-pressure tank 2, improves the effect of assembly, can simplify the process of assembly simultaneously, reduces the assembly degree of difficulty of the inside structure of high-pressure tank 2.

The battery upper cover that this embodiment provided can be equipped with the debugging mouth on the bounding wall 21 of high-pressure tank 2, and then can maintain and overhaul the inner structure of high-pressure tank 2 when needs, the follow-up maintenance operation of high-pressure tank 2 of being convenient for guarantees the normal work of high-pressure tank 2.

Further, the junction of the cover plate 22 of the high-pressure tank 2 and the coaming 21 can be provided with a sealing gasket, so that the tightness of the connection between the cover plate 22 and the coaming 21 is improved, the sealing effect of the high-pressure tank 2 is ensured, and the high-pressure tank 2 can work normally.

The battery upper cover that this embodiment provided can be equipped with the bead on the apron 22 of high-pressure tank 2, and the radiating effect of apron 22 can be improved in the setting of bead, and then accelerates the radiating rate of high-pressure tank 2, guarantees the normal work of high-pressure tank 2, avoids the inside heat gathering of high-pressure tank 2.

Referring to fig. 1 and 2, in one embodiment, the high-pressure tank 2 may be T-shaped, the enclosing plate 21 encloses a T-shaped annular structure through a plurality of vertical plates 211, and a T-shaped cover plate 22 is connected with the enclosing plate 21 in a sealing manner, and forms a space for accommodating the plug connector inside the high-pressure tank 2; in order to better improve the tightness of the high-pressure tank 2, a sealing gasket can be arranged at the joint of the cover plate 22 of the high-pressure tank 2 and the coaming 21, so that the tightness of the connection between the cover plate 22 and the coaming 21 is improved, and the normal operation of the high-pressure tank 2 is ensured.

The present embodiment also provides a battery system, which includes the battery case 4 and the battery top cover, so the battery system is also within the scope of the utility model; the battery box 4 may include a module formed by the battery cells, a liquid cooling system, an information acquisition system, a heating system, a high-voltage control system, and the like.

The battery upper cover of the battery system can integrate the high-voltage tank 2 and the water cooling unit, wherein the water cooling unit of the high-voltage tank 2 is arranged on the bottom plate 1 of the battery upper cover, and the design can solve the installation problem of the high-voltage tank 2 and the water cooling unit, and does not need to independently arrange an assembly space for the high-voltage tank 2 and the water cooling unit, so that the space occupation rate of the high-voltage tank 2 and the water cooling unit is reduced, and the integration level of the battery upper cover is improved; meanwhile, the input cost of the whole design is reduced.

Therefore, the battery system provided by the utility model can improve the integration level of the upper cover of the battery, reduce the space occupation rate and the cost, and solve the problem to be solved in the field at present.

Further, in the above battery system, a frame 11 may be disposed around the bottom plate 1 of the battery upper cover, referring to fig. 4, the bottom plate 1 may be connected with the battery box 4 through the frame 11, so as to realize the sealed assembly of the battery upper cover and the battery box 4; in order to better meet the actual sealing requirement, a sealing gasket can be arranged at the connection position of the bottom plate 1 and the battery box body 4, so that the sealing effect is improved, and the actual use requirement of the battery system is ensured.

There are slight differences depending on the kind of electric vehicles. In a pure electric vehicle equipped with only a battery, the battery serves as the sole source of power for the vehicle drive system. In a hybrid vehicle equipped with a conventional engine or fuel cell and a battery, the battery may serve as both the primary and secondary power source for the vehicle drive system. It can be seen that at low speed and start-up, the battery plays the role of the main power source of the automobile driving system; during full-load acceleration, the auxiliary power source acts; during normal driving, deceleration and braking, the energy storage role is played.

The battery upper cover provided by the embodiment can form the battery system with the battery box body 4, and can form a multi-layer battery system according to the electric quantity requirement in actual design, so as to meet the use requirement of actual electric quantity; meanwhile, the convenience of assembling and maintaining the multi-layer battery box body 4 can be greatly improved, and the actual use requirement is met.

The battery system that this embodiment provided can be equipped with the hoist and mount support on above-mentioned battery box 4, and then can be when changing the assembly, be convenient for hoist and mount battery box 4, reduce the degree of difficulty of assembly.

Further, in the battery system provided in this embodiment, the battery case 4 may further be provided with a positioning structure, which can improve the accuracy of assembling the battery upper cover and the battery case 4; when the battery box 4 and the battery upper cover are actually assembled, the battery box 4 and the battery upper cover can be accurately matched and installed under the assistance of the positioning structure.

In practical design, in one embodiment, the positioning structure can be a positioning pin, so that the accuracy of assembling the sizing box body and the upper battery cover is improved under the action of the positioning pin.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A battery upper cover, which is characterized by comprising a bottom plate (1) and a high-pressure box (2); the high-pressure tank (2) is arranged on the bottom plate (1).

2. The battery upper cover according to claim 1, wherein a water cooling unit is further provided on the bottom plate (1).

3. The battery upper cover according to claim 2, wherein the bottom plate (1) is provided with a mounting bar (3), and the water cooling unit is arranged on the bottom plate (1) through the mounting bar (3).

4. The battery upper cover according to claim 1, wherein a frame (11) is arranged around the bottom plate (1), and the bottom plate (1) is connected with the battery box body (4) through the frame (11).

5. Battery top cover according to claim 1, characterized in that the inside of the bottom plate (1) is provided with a flow channel for the coolant.

6. The battery top cover according to claim 1, characterized in that the high-pressure tank (2) comprises a shroud (21) and a cover plate (22);

the coaming (21) is arranged on the bottom plate (1);

the cover plate (22) is arranged at the top of the coaming (21) and forms a cavity structure with the coaming (21).

7. The battery top cover according to claim 6, characterized in that a sealing gasket is provided at the junction of the cover plate (22) and the coaming (21).

8. A battery system comprising a battery case (4) and a battery top cover according to any one of claims 1 to 7.

9. The battery system according to claim 8, wherein the battery box (4) is provided with a lifting bracket.

10. The battery system according to claim 8, wherein the battery case (4) is further provided with a positioning structure.