CN207587796U - A kind of battery case for fixing horizontal double cell module combination - Google Patents

Abstract

The utility model discloses a battery box capable of fixing a combination of horizontal double battery modules, which is characterized in that it comprises a hollow main body of the battery box, the bottom of the main body of the battery box is the lower shell of the battery box; the lower shell of the battery box At least one double battery module combination is fixedly arranged on the top of the body; each double battery module combination includes two first battery modules and second battery modules placed horizontally at the bottom, the first battery module The upper and lower ends of the first battery module and the second battery module are respectively fixedly connected, and the electrode mounting surface on the top of the first battery module and the second battery module is perpendicular to the top surface of the lower shell of the battery box; each of the two The lower parts of the front and rear sides of the battery module assembly are respectively fixedly connected with a lower bracket; each of the lower brackets is fixedly connected with the lower shell of the battery box. The utility model can ensure that the battery module is firmly fixed on the bottom surface of the battery box when the electrode installation surface of the battery module is vertically installed with the bottom surface of the battery box.

Description

A battery box capable of fixing a combination of horizontal double battery modules

technical field

The utility model relates to the technical field of batteries, in particular to a battery box capable of fixing a combination of horizontal double battery modules.

Background technique

At present, due to its good environmental protection performance, low energy consumption and relatively mature technology, electric vehicles have attracted great attention from the country, and the industry has developed rapidly.

With the popularization of urban electric vehicles, the installation and fixing of battery boxes containing multiple battery modules (that is, multiple battery packs) in the vehicle has its own specific requirements. On the one hand, it should not be too heavy, because if it is too heavy, it will seriously affect The cruising range of electric vehicles, on the other hand, requires the structural strength of the battery box to be high enough, because the strength directly affects the overall safety of electric vehicles.

For the current power battery module of an electric vehicle, it is generally attached to the bottom surface of the battery box for installation. Due to the limited overall space of electric vehicles, the space for placing battery boxes at the front and back is relatively compact. For this reason, sometimes under certain circumstances, it is required that the electrode mounting surface of the battery module (that is, the side where the positive output terminal and the negative output terminal are installed) , usually the top surface) is installed vertically with the bottom surface of the battery box, and ensures that the battery module is firmly fixed on the bottom surface of the battery box.

However, there is no technology at present, which can ensure that the battery module is firmly fixed on the bottom surface of the battery box when the electrode mounting surface (that is, the side on which the positive output terminal and the negative output terminal are installed) is installed vertically with the bottom surface of the battery box. bottom surface.

Utility model content

In view of this, the purpose of this utility model is to provide a battery box that can fix the combination of horizontal double battery modules, which can ensure that the battery modules are firmly fixed when the electrode mounting surface of the battery module is vertically installed with the bottom surface of the battery box. Firmly fixed on the bottom surface of the battery case, it is beneficial to widely popularize and apply, can form industrial scale, and has great practical significance in production.

For this reason, the utility model provides a battery box capable of fixing a combination of horizontal double battery modules, including a hollow battery box main body, the bottom of which is the lower shell of the battery box;

At least one double battery module combination is fixedly arranged on the top of the lower casing of the battery box;

Each of the dual battery module combinations includes two first battery modules and second battery modules placed horizontally at the bottom, and the upper and lower ends of the first battery module and the second battery module are respectively fixedly connected Together, the electrode mounting surfaces on the top of the first battery module and the second battery module are perpendicular to the top surface of the battery box lower case;

The lower parts of the front and rear sides of each double battery module combination are respectively fixedly connected with a lower bracket;

Each of the lower brackets is fixedly connected with the lower casing of the battery box.

Wherein, the upper and lower ends of the front side of the first battery module and the second battery module are respectively fixedly connected together by a first bolt, and the first bolt penetrates through the first battery module and the second battery The upper and lower ends of the front side of the module;

The upper and lower ends of the rear sides of the first battery module and the second battery module are respectively fixedly connected together by a first bolt, and the first bolt penetrates through the first battery module and the second battery The upper and lower ends of the rear side of the module.

Wherein, each of the inner, left and right ends of the lower bracket has a first bolt fixing ear respectively, and each of the first bolt fixing ears is correspondingly arranged with one of the first bolts and connected with each other;

Each of the first bolt fixing lugs is provided with a first bolt through hole, and the shape and size of each first bolt through hole correspond to the shape and size of the first bolt.

Wherein, the outer left and right ends of each of the lower brackets respectively have a second bolt fixing ear distributed horizontally, each of the second bolt fixing ears is fixedly connected with a second bolt, and each of the second Bolts are fixedly connected to the top surface of the lower casing of the battery box;

Each second bolt fixing lug is provided with a second bolt through hole, and the shape and size of each second bolt through hole match the shape and size of the second bolt correspondingly.

Wherein, for each double battery module combination, four hollow bushes are arranged in the gap between the first battery module and the second battery module, and each of the first bolts passes through one of the the bushing.

Wherein, for each double-battery module combination, a heating sheet or a liquid cooling plate is also arranged in the gap between the first battery module and the second battery module.

Wherein, a series row is arranged on the upper part of the front side of each dual battery module combination;

The top of each double battery module assembly is also fixedly covered with an upper bracket.

Wherein, the middle part of each of the lower brackets has an upwardly protruding connecting support portion.

Wherein, the lower bracket is further provided with a plurality of laterally distributed cooling holes at intervals.

It can be seen from the technical solution provided by the utility model above that, compared with the prior art, the utility model provides a battery box that can be combined with a fixed horizontal double battery module, which can be installed between the electrode mounting surface of the battery module and the battery box When the bottom surface is vertically installed, it is ensured that the battery module is firmly fixed on the bottom surface of the battery box, which is conducive to widespread application and can form a large-scale industry, which has great practical significance for production.

For the battery box provided by the utility model, it can ensure the firm fixation of the horizontally placed double-battery module combination through the fixing effect of the lower bracket, the first bolt, the second bolt and other components, and its space utilization rate is high, and it has great advantages. The high installation strength and stability can ensure that the battery module will not loosen under various complex environments such as acceleration, sudden braking, turning and collision of the electric vehicle, ensuring the overall safety of the electric vehicle.

Description of drawings

Fig. 1 is a three-dimensional structural diagram of a battery box with a fixed horizontal double battery module combination provided by the utility model when the double battery module combination is arranged on the top of the lower shell of the tank box;

Fig. 2 is a partially enlarged three-dimensional structure schematic diagram of a battery box with a fixed horizontal double-battery module combination provided by the utility model when a double-battery module combination is arranged on the top of the lower shell of the tank box;

Fig. 3 is a three-dimensional structural schematic diagram of each double battery module combination in a battery box that can fix the horizontal double battery module combination provided by the utility model;

Fig. 4 is a three-dimensional structural schematic diagram of each lower bracket in a battery box that can fix a horizontal double-battery module combination provided by the utility model;

In the figure, 1 is the lower bracket, 2 is the first battery module, 3 is the second battery module, 4 is the series row, 5 is the bushing, 6 is the first bolt, 7 is the second bolt, 8 is the battery box The lower shell, 9 is the upper bracket, and 10 is the combination of dual battery modules;

11 is a first bolt fixing ear, 110 is a first bolt through hole, 12 is a second bolt fixing ear, 120 is a second bolt through hole, 13 is a connecting support part, 14 is a cooling hole, and 15 is a battery management module.

Detailed ways

In order to enable those skilled in the art to better understand the solution of the utility model, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments.

Referring to Fig. 1 to Fig. 4, the utility model provides a battery box capable of fixing a combination of horizontal double battery modules, including a hollow main body of the battery box (figure omitted), and the bottom of the main body of the battery box is the lower shell of the battery box 8;

At least one double battery module combination 10 is fixedly arranged on the top of the lower casing 8 of the battery box;

Each of the dual battery module assemblies 10 includes a first battery module 2 and a second battery module 3 that are placed horizontally on two bottoms (that is, the side that is not equipped with a positive output terminal and a negative output terminal). The upper and lower ends of the first battery module 2 and the second battery module 3 are respectively fixedly connected together, and the electrode mounting surfaces on the top of the first battery module 2 and the second battery module 3 (that is, the positive output terminal and the One side of the negative output end) is perpendicular to the top surface of the battery box lower case 8, at this time, the electrode mounting surfaces on the top of the first battery module 2 and the second battery module 3 are also connected to the bottom surface of the battery box main body perpendicular to

The lower parts of the front and rear sides of each double battery module combination 10 are respectively fixedly connected with a lower bracket 1;

Each of the lower brackets 1 is fixedly connected with the lower shell 8 of the battery box.

In the present utility model, in order to make the upper and lower ends of the first battery module 2 and the second battery module 3 fixedly connected together, the specific structure is as follows:

The upper and lower ends of the front side of the first battery module 2 and the second battery module 3 are fixedly connected together by a first bolt 6 respectively, and the first bolt 6 penetrates through the first battery module 2 and the second battery module 3 . the upper and lower ends of the front side of the second battery module 3;

The upper and lower ends of the rear side of the first battery module 2 and the second battery module 3 are fixedly connected together by a first bolt 6 respectively, and the first bolt 6 penetrates through the first battery module 2 and the upper and lower ends of the rear side of the second battery module 3;

Therefore, for the present invention, the first battery module 2 and the second battery module 3 can be fixedly connected together by bolts through the four first bolts 6 .

In the present utility model, further, in order to allow the lower parts of the front and rear sides of each double battery module combination 10 to be fixedly connected to a lower bracket 1 respectively, the specific structure is as follows:

The left and right ends of the inner side of each lower bracket 1 (that is, the side facing the double battery module assembly 10) respectively have a first bolt fixing ear 11, and each of the first bolt fixing ears 11 is connected to a first bolt fixing ear 11. A bolt 6 is correspondingly arranged and connected together. Therefore, under the action of the first bolt 6 , the lower bracket 1 and the double battery module assembly 10 can be fixedly connected together.

Specifically, each first bolt fixing ear 11 is provided with a first bolt through hole 110, and the shape and size of each first bolt through hole 110 correspond to the shape and size of the first bolt 6. match.

In the present utility model, in order to make each of the lower brackets 1 and the battery box lower case 8 fixedly connected together, the specific structure is as follows:

The left and right ends of the outer side of each lower bracket 1 (that is, the side away from the double battery module assembly 10) respectively have a second bolt fixing ear 12 distributed horizontally, each of the second bolt fixing ears 12 is connected with a The second bolts 7 are fixedly connected together, and each of the second bolts 7 is fixedly connected with the top surface of the lower casing 8 of the battery box.

Specifically, each second bolt fixing ear 12 is provided with a second bolt through hole 120, and the shape and size of each second bolt through hole 120 correspond to the shape and size of the second bolt 7. match.

In this utility model, in order to allow the lower bracket 1 to connect and fix the double battery module combination composed of the first battery module 2 and the second module 3 more stably, and prevent it from causing the first The position and distance between the battery module 2 and the second module 3 fluctuate. For specific implementation, see FIG. 4 , the middle of each lower bracket 1 has an upwardly protruding connecting support portion 13 .

In terms of specific implementation, see FIG. 4 , the lower bracket 1 is also provided with a plurality of laterally distributed heat dissipation holes 14 at intervals, so as to facilitate the contact surface between the lower bracket 1 and the double battery module combination 10 to dissipate heat well and ensure that the battery The overall working performance of the module.

In the present utility model, for each double battery module combination 10, four hollow bushings 5 are arranged in the gap between the first battery module 2 and the second battery module 3, each of which The first bolt 6 passes through one of the bushings 5 .

In terms of specific implementation, a heating sheet or a liquid cooling plate is also arranged in the gap between the first battery module 2 and the second battery module 3 . Therefore, for the present utility model, according to the use environment of the battery module, the gap between the first battery module 2 and the second battery module 3 can be installed with a heating plate or a liquid cold plate, which is convenient for the double battery module. Combo 10 for thermal management.

In the present utility model, a series row 4 is provided on the upper front side of each double battery module combination 10, and the series connection row 4 is used to connect the first battery in each double battery module combination 10 The module 2 and the second battery module 3 are connected in series, that is, they are electrically connected in series.

In the present invention, an upper bracket 9 is fixedly covered on the top of each double battery module assembly 10 .

In terms of specific implementation, one first bolt 6 is provided through the front and rear ends of the upper bracket 9 , so as to be fixed on the top of each double battery module assembly 10 through the first bolt 6 .

In terms of specific implementation, a battery management module (BMU) 15 is also provided on the top of the upper bracket 9, therefore, the utility model can realize the compact structure of the power battery system of the entire electric vehicle.

Therefore, in summary, compared with the prior art, the utility model provides a battery box capable of fixing horizontal dual battery modules, which can be installed vertically when the electrode mounting surface of the battery module is vertically installed , to ensure that the battery module is firmly fixed on the bottom of the battery box, which is conducive to widespread application and can form a large-scale industry, which has great practical significance for production.

For the battery box provided by the utility model, it can ensure the firm fixation of the horizontally placed double-battery module combination through the fixing effect of the lower bracket, the first bolt, the second bolt and other components, and its space utilization rate is high, and it has great advantages. The high installation strength and stability can ensure that the battery module will not loosen under various complex environments such as acceleration, sudden braking, turning and collision of the electric vehicle, ensuring the overall safety of the electric vehicle.

The above is only a preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements and modifications can also be made, these improvements and Retouching should also be regarded as the scope of protection of the present utility model.

Claims (9)

1. A battery box capable of fixing a combination of horizontal double battery modules, characterized in that it comprises a hollow battery box main body, and the bottom of the battery box main body is the battery box lower case (8); At least one double battery module combination (10) is fixedly arranged on the top of the lower casing (8) of the battery box; Each of the dual battery module assemblies (10) includes two first battery modules (2) and second battery modules (3) placed horizontally at the bottom, the first battery modules (2) and The upper and lower ends of the second battery module (3) are fixedly connected together, and the electrode mounting surfaces on the top of the first battery module (2) and the second battery module (3) are connected to the lower shell of the battery box. (8) The top surfaces are vertical; The lower parts of the front and rear sides of each double battery module combination (10) are respectively fixedly connected with a lower bracket (1); Each of the lower brackets (1) is fixedly connected with the lower case (8) of the battery box. 2. The battery box according to claim 1, characterized in that, the upper and lower ends of the front side of the first battery module (2) and the second battery module (3) respectively pass a first bolt (6) fixedly connected together, the first bolt (6) passes through the upper and lower ends of the front side of the first battery module (2) and the second battery module (3); The upper and lower ends of the rear side of the first battery module (2) and the second battery module (3) are respectively fixedly connected together by a first bolt (6), and the first bolt (6) runs through Pass through the upper and lower ends of the rear side of the first battery module (2) and the second battery module (3). 3. The battery box according to claim 2, characterized in that, each of the inner, left and right ends of the lower bracket (1) has a first bolt fixing ear (11) respectively, and each of the first bolts is fixed The ear (11) is arranged corresponding to one of the first bolts (6) and is connected with each other; Each first bolt fixing ear (11) is provided with a first bolt through hole (110), and the shape and size of each first bolt through hole (110) are consistent with the shape of the first bolt (6). , The size corresponds to match. 4. The battery box according to claim 1, characterized in that, the left and right ends of each of the lower brackets (1) have a horizontally distributed second bolt fixing ear (12), and each of the second Two bolt fixing ears (12) are fixedly connected together with a second bolt (7), each of the second bolts (7) is fixedly connected together with the top surface of the battery box lower case (8); Have a second bolt through hole (120) on each described second bolt fixing ear (12), the shape of each second bolt through hole (120), size and the shape of described second bolt (7) , The size corresponds to match. 5. The battery box according to claim 2, characterized in that, for each double battery module combination (10), there is a battery between the first battery module (2) and the second battery module (3). Four hollow bushes (5) are arranged in the gap, and each of the first bolts (6) passes through one of the bushes (5). 6. The battery box according to claim 5, characterized in that, for each double battery module combination (10), there is a gap between the first battery module (2) and the second battery module (3). A heating sheet or a liquid cooling plate is also arranged in the gap. 7. The battery box according to claim 1, characterized in that, a series row (4) is arranged on the upper part of the front side of each double battery module combination (10); An upper bracket (9) is fixedly covered on the top of each double battery module combination (10). 8. The battery box according to any one of claims 1 to 7, characterized in that, the middle part of each lower bracket (1) has an upwardly protruding connecting support portion (13). 9. The battery box according to any one of claims 1 to 7, characterized in that, a plurality of laterally distributed cooling holes (14) are arranged at intervals on the lower bracket (1).