CN106711365A - Battery module and battery box - Google Patents

Abstract

In order to solve the problems that an existing battery module is generally designed with different battery brackets according to parameter modules provided by different clients, but the battery brackets have relatively long mold opening cycles, the clients need to wait for a long time to verify samples of the first batch, and the cost is relatively high, the invention provides a battery module and a battery box. The battery module comprises two battery brackets and a plurality of cylindrical cells arranged between the battery bracket, wherein the battery brackets comprise two or more bracket modules; and adjacent bracket modules are buckled together. According to the battery module and the battery box comprising the same, disclosed by embodiments of the invention, because the designed battery brackets are formed by assembling a plurality of brackets modules together, a battery module to be customized by a client can be assembled by just selecting a suitable bracket module as a bracket module of a basic unit, thus rapid preparation of the battery module can be achieved, and the time for delivering a first sample to the client is reduced; therefore, the product development cost is effectively reduced.

Description

A battery module and battery box

technical field

The invention relates to the field of batteries, in particular to the technical field of assembling battery modules using cylindrical batteries and battery brackets.

Background technique

In order to increase the output current and/or output voltage of the battery module, it is common practice to connect multiple batteries in series, in parallel or in combination. A battery holder that holds multiple batteries together.

For example, as shown in FIG. 1 , a battery module formed by assembling cylindrical batteries 200 generally includes two upper and lower battery holders 100, and several cylindrical batteries 200 arranged between the upper and lower battery holders 100; With battery modules, the existing battery holder 100 is generally a sheet-like structure integrally formed, and a number of battery holes are arranged on it. The existing battery modules used in electric vehicles or energy storage power stations are generally designed according to the parameter requirements provided by customers to design the arrangement scheme of cylindrical cells; The battery holder and cylindrical cells are assembled into a battery module. However, different customers need to design different battery holders, and the mold opening cycle of battery holders is long, and customers need to wait for a long time to verify the first batch of samples; in the early stage of product design, the possibility of program adjustment is very high, resulting in the need to modify the development mold , or even redo, the cost is higher.

Contents of the invention

In order to solve the problem that different battery holders are generally designed according to the parameter modules provided by different customers in the existing battery modules, and the mold opening period of the battery holder is long, the customer needs to wait for a long time to verify the first batch of samples, and the cost is high. The present invention Provided are a battery module and a battery box.

One aspect of the present invention provides a battery module, including two battery supports and a number of cylindrical batteries installed between the battery supports;

Wherein, the battery bracket includes more than two bracket modules; more than one cell hole is formed on the bracket module, and the bracket module includes four sides of upper, lower, left and right;

The upper and lower sides of the bracket module are correspondingly provided with outwardly protruding bumps and inwardly recessed grooves; and the left and right sides of the bracket module are also correspondingly provided with outwardly protruding A bump and an inwardly recessed groove; adjacent bracket modules are snapped together through the bump and the groove.

Preferably, the upper side of the bracket module is provided with a bump, and the lower side of the bracket module is correspondingly provided with a groove matching the bump;

The left side of the bracket module is provided with a bump, and the right side of the bracket module is correspondingly provided with a groove matching with the bump.

Preferably, the lower side of the bracket module is provided with the bump, and the upper side of the bracket module is correspondingly provided with a groove matching the bump;

The right side of the bracket module is provided with a bump, and the left side of the bracket module is correspondingly provided with a groove matching the bump.

Preferably, the lower side of the bracket module is provided with protrusions and grooves, and the upper side of the bracket module is correspondingly provided with grooves that cooperate with the upper protrusions on the lower side, and are connected with the lower side. Lugs that fit into the grooves on the sides;

The left side of the bracket module is provided with a bump and a groove, and the right side of the bracket module is correspondingly provided with a groove that matches the bump on the left side, and a groove that matches the left side. Groove-fitted bumps.

Preferably, the support module includes cooling holes.

Preferably, the bracket module includes a 2-hole bracket module and a 3-hole bracket module.

Preferably, the bracket module includes a 2-hole bracket module, a 3-hole bracket module and a 6-hole bracket module.

Preferably, it also includes 2 electrode sheets, 2 separators and 2 side support plates;

The two electrodes of the cylindrical batteries are exposed from the battery holes on the two battery supports; An electrode is electrically connected;

The two separators are respectively arranged on the outer sides of the two electrode sheets; the two side support plates are respectively arranged on the outer sides of the two separators.

Preferably, the two electrodes of the cylindrical cells are exposed from the cell holes on the two battery holders;

The cylindrical batteries are connected in series or in parallel through the battery connecting piece.

A second aspect of the present invention provides a battery box, which includes a box body and several battery modules installed in the box body.

The battery module and the battery box including the battery module disclosed in the present invention, because the battery bracket designed by it is assembled by several bracket modules, when ordering battery modules according to different customers, the bracket module only needs to open the mold once , there is no need to design a specific battery bracket for specific mold opening, but only need to select the appropriate bracket module as the basic unit, and then the battery module customized by the customer can be combined. In this way, the rapid preparation of the battery module can be realized and the first time to deliver samples to customers; this effectively reduces product development costs.

Description of drawings

Figure 1 is a schematic diagram of a battery module assembled with cylindrical cells;

Fig. 2 is a schematic top view of a 2-hole bracket module provided in a specific embodiment of the present invention;

Fig. 3 is a schematic top view of a 6-hole bracket module provided in a specific embodiment of the present invention;

Fig. 4 is a schematic top view of a battery support formed by assembling the support modules in Fig. 2 and Fig. 3 provided in the specific embodiment of the present invention;

FIG. 5 is an enlarged schematic diagram of point A in FIG. 4 .

Among them, 1. bracket module; 1a, 6-hole bracket module; 1b, 2-hole bracket module; 10, battery hole; 11, bump; 12, groove; 13, cooling hole; 100, battery bracket; 200. Cylindrical electric core.

detailed description

In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

Example 1

This example will specifically explain the battery module disclosed in the present invention. As shown in FIG. The structure is known to the public and will not be described in detail.

Wherein, as shown in FIG. 4, the battery holder 100 includes more than two holder modules 1;

As shown in Fig. 2 and Fig. 3, more than one cell hole 10 is formed on the support module 1. From a top view, the support module 1 includes four sides of upper, lower, left and right; The bracket module 1 is a sheet or plate. Its two largest surfaces are the surfaces on which the cell hole 10 is provided, and the cell hole 10 is a through hole.

In order to assemble the adjacent bracket modules 1 to form the required battery bracket 100 of appropriate specifications, the upper and lower sides of the bracket module 1 are correspondingly provided with outwardly protruding bumps 11 and inwardly recessed groove 12; and the left and right sides of the bracket module 1 are also provided with outwardly protruding bumps 11 and inwardly recessed grooves 12; as shown in Figure 5, the adjacent The bracket module 1 is snap-connected through the protrusion 11 and the groove 12 .

Specifically, between adjacent bracket modules 1, the protrusion 11 on the lower side of the bracket module 1 at the upper end is snap-connected with the groove 12 on the upper side of the bracket module 1 at the lower end; The groove 12 on the lower side of the bracket module 1 at the upper end is snap-connected with the protrusion 11 on the upper side of the bracket module 1 at the lower end. Between the adjacent bracket modules 1, the protrusion 11 on the right side of the bracket module 1 on the left side is snap-connected with the groove 12 on the left side of the bracket module 1 on the right end; The groove 12 on the right side of the bracket module 1 is snap-connected with the protrusion 11 on the left side of the bracket module 1 at the right end.

Specifically, there is no special limitation on the specific arrangement positions of the grooves 12 and the protrusions 11 on the sides of the bracket module 1 , as long as a corresponding buckling relationship can be formed between adjacent protrusions 11 and grooves 12 .

For example, a bump 11 can be provided on the upper side of the bracket module 1, and a groove 12 matching with the bump 11 is correspondingly provided on the lower side of the bracket module 1; 1 is provided with a bump 11 on the left side, and a groove 12 matching with the bump 11 is correspondingly provided on the right side of the bracket module 1 .

Or, the lower side of the bracket module 1 is provided with the bump 11, and the upper side of the bracket module 1 is correspondingly provided with a groove 12 matched with the bump 11; The right side of the module 1 is provided with a protruding block 11 , and the left side of the bracket module 1 is correspondingly provided with a groove 12 matching with the protruding block 11 .

Or, the lower side of the bracket module 1 can be provided with a bump 11 and a groove 12 at the same time, and the upper side of the bracket module 1 is also correspondingly provided with a groove that cooperates with the upper bump 11 on the lower side. Groove 12, and the protrusion 11 that cooperates with the groove 12 on the lower side;

The left side of the bracket module 1 is provided with a bump 11 and a groove 12, and the right side of the bracket module 1 is correspondingly provided with a groove 12 that cooperates with the bump 11 on the left side, and The protrusion 11 that cooperates with the groove 12 on the left side.

Wherein, the support module 1 includes cooling holes 13 for dissipating the heat generated by the battery in the internal resistance of the support.

The bracket module 1 is the basic unit that forms the battery bracket 100, and it can be a bracket module 1 of a certain individual specification, such as a 2-hole bracket module 1b (2 holes represent the number of battery holes 10 on it, and 1 hole , 3 holes, and 6 holes are the same) or even 1-hole bracket modules; according to experience, generally 1-hole bracket modules are too troublesome to assemble, and bracket modules with more than 2 holes are preferred. The 2-hole bracket module 1b of the same specification is selected separately, and in the assembled battery bracket 100, only an even number of cylindrical cells 200 can be limited, which has certain restrictions. At this time, it is preferable to use a combination of bracket modules 1 of various specifications, such as making a 1-hole bracket module, or a 3-hole bracket module, and a 2-hole bracket module 1b, or a 6-hole bracket module 1a. Preferably, the support module 1 includes a 2-hole support module 1b and a 3-hole support module. Further, the support module 1 preferably includes a 2-hole support module 1b, a 3-hole support module and a 6-hole support module 1a. Among them, FIG. 2 specifically shows a 2-hole bracket module 1b, and FIG. 3 shows a 6-hole bracket module 1a. As shown in FIG. 4 , by using the 2-hole bracket module 1b and the 6-hole bracket module 1a, a battery bracket 100 as shown in the figure can be assembled.

Generally, when assembling a battery module, in addition to the above-mentioned necessary cylindrical battery cell 200 and battery holder 100, other structures known to the public are also included to form a completed battery module, such as an electrical lead-out structure, a protection circuit, a cooling system, Peripheral protection structures, etc. The present application does not limit other structures, but only illustrates them by way of example.

For example, the battery module also includes 2 electrode sheets, 2 separators and 2 side support plates;

The two electrodes of the cylindrical cell 200 are exposed from the cell holes 10 on the two battery holders 100; The two electrodes of the core 200 are electrically connected;

The two separators are respectively arranged on the outer sides of the two electrode sheets; the two side support plates are respectively arranged on the outer sides of the two separators.

For another example, the two electrodes of the cylindrical cells 200 are exposed from the cell holes 10 on the two battery holders 100 ; the cylindrical cells 200 are connected in series or in parallel through battery connecting pieces.

The battery module disclosed in this example, because the battery bracket 100 designed by it is assembled by several bracket modules 1, when customizing the battery module according to different customers, the bracket module 1 only needs to open the mold once, and there is no need to make a specific mold. Only need to select the appropriate bracket module 1 as the basic unit to assemble the battery module customized by the customer. In this way, the rapid preparation of the battery module can be realized, and the delivery of the first sample can be reduced. Customer's time; this effectively reduces product development costs.

Example 2

This example provides a battery box, which includes a box body and several battery modules installed in the box body. The battery module is the battery module specifically introduced in Embodiment 1. This example does not improve the battery box body and other structures known to the public, but only improves the battery module. Since the battery module has been modified in Embodiment 1 A specific explanation will be given, and therefore, details will not be repeated here.

For the battery box disclosed in this example, since the battery bracket 100 designed in the battery module is assembled from several bracket modules 1, when ordering battery modules according to different customers, the bracket module 1 only needs to open the mold once, without Then design a specific battery bracket 100 through specific mold opening, and only need to select the appropriate bracket module 1 as the basic unit to assemble the battery module customized by the customer. In this way, the rapid preparation of the battery module can be realized, reducing the initial cost time to deliver samples to customers; this effectively reduces product development costs.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the protection of the present invention. within range.

Claims (10)

1. a kind of battery module, including 2 battery brackets and it is installed on some between the battery bracket Cylindrical cell；

Characterized in that, the battery bracket includes 2 with upper bracket module；Shape on the support module Into there is more than 1 battery core hole, the support module includes 4, upper and lower, left and right side；

The projection being correspondingly provided with the upper and lower side of the support module outwardly is recessed with what is caved inward Groove；And projection outwardly is also correspondingly provided with the left and right side of the support module and is caved inward Groove；The adjacent support module is snapped connection by the projection and the groove fit.

2. battery module according to claim 1, it is characterised in that the upside of the support module Side is provided with projection, and the groove coordinated with projection is correspondingly provided with the lower side of the support module；

The left side of the support module is provided with projection, is correspondingly provided with the right edge of the support module The groove coordinated with projection.

3. battery module according to claim 1, it is characterised in that the downside of the support module Side is provided with the projection, is correspondingly provided with the upper side edge of the support module recessed with what the projection coordinated Groove；

The right edge of the support module is provided with projection, is correspondingly provided with the left side of the support module The groove coordinated with the projection.

4. battery module according to claim 1, it is characterised in that the downside of the support module Side is provided with projection and groove, is correspondingly provided with the upper side edge of the support module and matched somebody with somebody with lower side upper protruding block The groove of conjunction, and the projection coordinated with lower side upper groove；

The left side of the support module is provided with projection and groove, right in the right edge of the support module The groove coordinated with left side upper protruding block should be provided with, and the projection coordinated with left side upper groove.

5. battery module according to claim 1, it is characterised in that include on the support module There is louvre.

6. battery module according to claim 1, it is characterised in that the support module includes 2 Hole support module and 3 hole support modules.

7. battery module according to claim 1, it is characterised in that the support module includes 2 Hole support module, 3 hole support modules and 6 hole support modules.

8. battery module according to claim 1, it is characterised in that also including 2 electrode slices, 2 dividing plates and 2 collateral faggings；

2 electrodes of the cylindrical cell expose from the battery core hole on 2 battery brackets；Institute State the outside that 2 electrode slices are arranged on 2 supports, 2 electrode electricity with the cylindrical cell Connection；

2 dividing plates are separately positioned on 2 outsides of electrode slice；2 collateral faggings be separately positioned on 2 every The outside of plate.

9. battery module according to claim 1, it is characterised in that the 2 of the cylindrical cell Individual electrode exposes from the battery core hole on 2 battery brackets；

Pass through cell connector serial or parallel connection between each cylindrical cell.

10. a kind of battery case, the battery case includes casing and some battery modules in casing, Characterized in that, battery module of the battery module described in any one in claim 1-9.