CN218496283U

CN218496283U - Temperature acquisition assembly and battery pack

Info

Publication number: CN218496283U
Application number: CN202222112940.2U
Authority: CN
Inventors: 胡云锋; 曹楷
Original assignee: Shanghai Ruipu Energy Co Ltd
Current assignee: Shanghai Ruipu Energy Co Ltd
Priority date: 2022-08-11
Filing date: 2022-08-11
Publication date: 2023-02-17
Anticipated expiration: 2032-08-11

Abstract

The utility model discloses a temperature acquisition subassembly and battery package relates to battery technology field, and the device includes: a plurality of temperature sensors and connectors; the temperature sensors are detachably assembled on the battery module main body; and the connector is connected with the temperature sensor through a connecting wire harness, and the connecting wire harness is attached to the surface of the battery module main body. The utility model discloses in arrange design and fixed mounting design with the temperature acquisition subassembly independently of the battery module, thereby the after-sale cost of maintenance has been saved to whole battery module because temperature sensor damages and change in the after-sale maintenance process.

Description

Temperature acquisition assembly and battery pack

Technical Field

The utility model relates to a battery technology field, concretely relates to temperature acquisition subassembly and battery package.

Background

The new energy battery pack is a large energy storage device which integrates a power battery, an electric appliance control system, a thermal management system and the like highly. The maximum temperature of each single battery in the battery pack and the maximum temperature difference between the single batteries influence the service characteristics and the service life of the batteries, so the accuracy of temperature acquisition data is very important. In the related technology, the NTC is pasted on the FPC, the PCB or the FFC through SMT to acquire the temperature of a module battery cell, and the voltage acquisition and the temperature acquisition are integrated on the FPC, the PCB or the FFC; in other embodiments, the NTC is encapsulated in an aluminum terminal housing and then welded to the bus bar between the cells by an ultrasonic process, and voltage and temperature acquisition is integrated on the wire harness. It is thus clear that the temperature acquisition subassembly all adopts to integrate the setting on battery module among the correlation technique.

However, when the temperature sensor malfunctions, since the temperature sensor is integrated on the battery module, a serviceman has to replace the entire problematic battery module, which is undoubtedly very costly for after-sales service, especially for the current large module or CTP solution.

SUMMERY OF THE UTILITY MODEL

To the defect that exists among the prior art, the utility model provides a temperature acquisition subassembly, include: a plurality of temperature sensors and connectors; wherein the content of the first and second substances,

the temperature sensors are detachably assembled on the battery module main body;

the battery pack comprises a battery module body, a temperature sensor, a connector, a connecting wire harness and a management system, wherein one end of the connector is connected with the temperature sensor through the connecting wire harness, the other end of the connector is connected with the management system of the battery pack, and the connecting wire harness is attached to the surface of the battery module body.

In some embodiments, further comprising: at least one pencil buckle, pencil buckle detachably group is located on the pencil mounting panel of battery package, just the pencil buckle be used for with connect the pencil joint.

In some embodiments, the temperature sensor is detachably inserted or clamped into the battery module main body.

In some embodiments, further comprising: and the clamping device is used for being assembled on the battery module main body and is detachably clamped with the temperature sensor.

In some embodiments, at least one card slot is arranged on the temperature sensor;

the clamping device comprises at least one buckle, the buckle group is arranged on the battery module main body, and each buckle is used for being matched with one clamping groove to clamp the temperature sensor.

In some embodiments, three of the clamping grooves are arranged on the temperature sensor, and the three clamping grooves are symmetrically arranged around the center of the temperature sensor.

In some embodiments, the temperature sensor is provided with an insertion part, and the temperature sensor can be inserted into the protrusion part on the tab of the battery module through the insertion part.

In some embodiments, the temperature sensor is configured to be detachably mounted at an edge or a middle portion of the top surface of the battery module main body.

In another aspect, the present application provides a battery pack, including: a plurality of the temperature acquisition assemblies of any one of the above, and a plurality of the temperature sensors of the temperature acquisition assemblies are arranged on a plurality of battery module main bodies of the battery pack according to preset requirements.

In some embodiments, the battery pack includes: the battery module comprises at least two battery module main bodies, and the two battery module main bodies are respectively provided with the same or different temperature sensors in number.

Compared with the prior art, the utility model has the advantages of:

the utility model discloses in arrange design and fixed mounting design with the temperature acquisition subassembly independently of the battery module, thereby the after-sale cost of maintenance has been saved to whole battery module because temperature sensor damages and change in the after-sale maintenance process.

Further, the utility model discloses in owing to use latch device on the battery module with temperature acquisition subassembly detachably and battery module joint for when arranging the battery package, can be according to the nimble quantity and the position of adjusting the temperature acquisition subassembly of distribution in temperature field, effectively improved the accuracy of adopting the temperature and reduced the emergence that the temperature redundancy condition was adopted to the temperature acquisition subassembly.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a top view of a part of a battery pack according to an embodiment of the present invention;

fig. 2 is a schematic view of a partial structure of the temperature acquisition assembly at the clamping device according to an embodiment of the present invention;

fig. 3 is a schematic view of a local structure of a splicing portion of the temperature sensor and the bus bar of the temperature acquisition assembly in the embodiment of the present invention.

In the figure: 1. a battery module main body; 2. a temperature sensor; 21. a card slot; 22. a plug-in part; 3. connecting a wire harness; 4. a connector; 5. wire harness buckling; 6. a clamping device; 61. buckling; 7. a tablet; 71. a protrusion.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making creative efforts shall fall within the protection scope of the present application.

The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. In order to solve the correlation technique in integrate the temperature acquisition subassembly that sets up on battery module and have after sale maintenance inconvenience, and unable adaptation temperature field carries out the problem of nimble adjustment, as shown in fig. 1, this application provides a temperature acquisition subassembly, includes: a plurality of temperature sensors 2 and connectors 4; wherein the content of the first and second substances,

the temperature sensors 2 are detachably assembled on the battery module main body 1; and one end of the connector 4 is connected with the temperature sensor 2 through a connecting wire harness 3, the other end of the connector is connected with a management system of the battery pack, and the connecting wire harness 3 is attached to the surface of the battery module main body 1.

Preferably, the temperature acquisition assembly further comprises: at least one

pencil buckle

5, 5 detachably group of pencil buckle are located on the pencil mounting panel of battery package, just pencil buckle 5 be used for with 3 joints of connecting harness.

Compare in the correlation technique, temperature acquisition module (temperature sensor) and voltage acquisition module are integrated in FPC, PCB or FFC on the battery module, then are connected the back through FPC, PCB or FFC and connector, with temperature data acquisition information or voltage data acquisition information transmission to the management system of battery package, or directly with the temperature acquisition module weld to the piece of a heavy between electric core and electric core, promptly, with the temperature acquisition module integration on the battery module. The temperature acquisition subassembly that this application embodiment provided is through being connected temperature sensor and battery module detachable to, directly be connected temperature sensor and connector through connecting the pencil, and then realize that the management system of battery package can directly receive the temperature acquisition information of temperature acquisition subassembly, and realize the independent control to the temperature acquisition subassembly, avoided when the temperature acquisition module goes wrong, to the change of whole battery module.

In addition, because the temperature acquisition modules in the related art are integrated on the battery module, in the design process, in order to realize effective monitoring of the temperature of the battery module, a plurality of temperature acquisition modules may be designed on one battery module, but because the battery pack is installed by taking the battery module as a unit, and the arrangement schemes of the battery modules in the battery pack are different, the temperature field distribution of the battery modules is different. Therefore, the number and the position requirements of the modules at each position of the battery pack on the temperature sensors are different, and the temperature field distribution of each module is different due to different arrangement schemes of the battery modules in the battery pack, so that the number and the arrangement requirements of the modules at each position on the temperature sensors are different. This leads to problems of maldistribution of the temperature sensors in different areas in practical arrangements, such as: some areas do not monitor well the individual typical temperature fields of the cells, while in other areas there are also redundant battery temperature sensors. This causes the battery package to adopt the condition that the temperature efficiency is not high and there is the material extravagant. Compared with the prior art, the temperature acquisition assembly provided by the embodiment of the application can flexibly adjust the number of the temperature sensors in the temperature acquisition assembly, the positions of the temperature sensors, the connection relation between the temperature sensors and the wire harness and the like according to the positions of the battery modules in the battery pack after the battery modules are installed in the assembling process of the battery pack, so that the temperature acquisition accuracy is effectively improved, and the temperature acquisition redundancy condition of the temperature acquisition assembly is reduced.

Preferably, the temperature sensor 2 is used to be detachably inserted or clamped with the battery module main body 1. The two connection modes of insertion connection or clamping connection have the detachable function, and are easier to operate and convenient for a user to operate.

In some embodiments, the temperature acquisition assembly includes a plurality of clamping devices 6 for assembling to the battery module main body 1, and each clamping device 6 is clamped with one temperature sensor 2.

Specifically, as shown in fig. 2, the clamping device 6 includes at least one buckle 61, the buckle 61 is assembled on the battery module main body 1, and the buckle 61 is used for matching with the temperature sensor 2 on the battery module main body 1 to clamp the temperature sensor 2 on the battery module main body 1.

It can be understood that, when the battery module is mounted, the temperature sensor 2 is merely clamped to the surface of the battery module main body 1 by the snaps 61. And need the maintenance or need adjust temperature sensor 2 the time, only need through buckle 61 with temperature sensor 2 unblock can.

Preferably, a card slot 21 is arranged on the temperature sensor 2. It can be understood that the clamping groove 21 is used for cooperating with the buckle 61 to complete clamping, and when the clamping groove 21 is matched with the buckle 61, the temperature sensor 2 can be attached to the isolation plate of the battery module main body 1.

Further, be equipped with three draw-in groove 21 on the temperature sensor 2, draw-in groove 21 sets up with 2 centrosymmetric of temperature sensor, and similarly, buckle 61 quantity and position correspond with draw-in groove 21, and a plurality of buckles 61 that the symmetry set up can be better with temperature sensor 2 joint, avoid its condition that takes place to drop in the use.

It is understood that the temperature sensor 2 is adapted to be detachably assembled at the edge or the middle of the top surface of the battery module main body 1. It should be noted that the arrangement of the temperature sensors 2 needs to be planned in terms of position and number according to preset requirements (preset requirements or preset rules of each battery module are generally obtained by using temperature field analysis). The temperature sensor 2 may be assembled at any position on the surface of the battery module main body 1.

In some embodiments, as shown in fig. 3, the temperature sensor 2 is provided with a plug portion 22, and the temperature sensor 2 can be plugged with the tab 7 of the battery module main body 1 through the plug portion 22. For facilitating the plugging, the blades 7 are also provided with a plurality of protrusions 71 for cooperating with said plugging portions 22.

In another aspect, the present application provides a battery pack including a plurality of battery module main bodies 1. In one possible embodiment, as shown in fig. 1, the battery module main bodies 1 are arranged side by side two by two. According to the temperature field arrangement, the same or different number of temperature sensors 2 are arranged on the battery module main bodies 1 arranged side by side, and the positions of the temperature sensors can also be changed according to the temperature field.

pencil buckle

5, 5 detachably groups of pencil buckle are located on the pencil mounting panel of battery package, just pencil buckle 5 be used for with 3 joints of connecting harness.

In some specific embodiments, the plurality of temperature sensors 2 of the temperature acquisition assembly are assembled on the plurality of battery module main bodies 1 of the battery pack according to a preset requirement or a preset rule. The above-mentioned preset requirements and preset rules need to be determined according to the distribution of the temperature field.

It can be understood that the plurality of battery module main bodies 1 of the battery pack are respectively provided with the same or different number of temperature sensors 2, and as can be seen from fig. 1, the battery module main bodies 1 arranged side by side may be provided with two temperature sensors 2. It is also possible to provide one temperature sensor 2 and three temperature sensors 2.

It is worth to be noted that, when the battery module arrangement is performed on the battery pack, the temperature field distribution of the whole battery pack is firstly analyzed, and the number and the positions of the temperature sensors 2 on the battery module main body 1 are adjusted according to the temperature field. After the determination is completed, the temperature sensor 2 is clamped by the clamp 61. When needing to maintain or replace temperature sensor 2, only need through buckle 61 with temperature sensor 2 unblock, demolish temperature sensor 2 alone and maintain or replace can.

To sum up, the utility model discloses in arrange design and fixed mounting design with the temperature acquisition subassembly independently of battery module, thereby needn't change whole battery module because temperature sensor damages and saved after-sale cost of maintenance in the after-sale maintenance process. The utility model discloses in set up latch device on battery module to through latch device with temperature acquisition subassembly detachably and battery module joint, make when arranging the battery package, can adjust the quantity and the position of temperature acquisition subassembly according to the distribution flexibility of temperature field, effectively improved the accuracy of adopting the temperature and reduced the emergence that the temperature redundancy condition was adopted to the temperature acquisition subassembly.

In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience of describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.

It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A temperature acquisition assembly, comprising:

the temperature sensors (2) are detachably assembled on the battery module main body (1);

the battery pack comprises a connector (4), one end of the connector is connected with the temperature sensor (2) through a connecting wire harness (3), the other end of the connector is connected with a management system of the battery pack, and the connecting wire harness (3) is attached to the surface of the battery module body (1).

2. The temperature-acquisition assembly of claim 1, further comprising: at least one pencil buckle (5), pencil buckle (5) detachably group is located on the pencil mounting panel of battery package, just pencil buckle (5) be used for with connect pencil (3) joint.

3. The temperature-acquisition assembly of claim 1 or 2, wherein: the temperature sensor (2) is used for being detachably connected with the battery module main body (1) in an inserting mode or a clamping mode.

4. The temperature-acquisition assembly of claim 3, further comprising: and the clamping device (6) is used for being assembled on the battery module main body (1), and the clamping device (6) is used for being detachably clamped with the temperature sensor (2).

5. The temperature-acquisition assembly of claim 4, wherein: at least one clamping groove (21) is arranged on the temperature sensor (2);

clamping device (6) include at least one buckle (61), buckle (61) group is located battery module main part (1), every buckle (61) be used for with one draw-in groove (21) cooperation with temperature sensor (2) chucking.

6. The temperature-acquisition assembly of claim 5, wherein: the temperature sensor (2) is provided with three clamping grooves (21), and the three clamping grooves (21) are symmetrically arranged with the center of the temperature sensor (2).

7. The temperature-acquisition assembly of claim 3, wherein: the temperature sensor (2) is provided with a plugging portion (22), and the temperature sensor (2) can be plugged with a protruding portion (71) on a bar sheet (7) of the battery module main body (1) through the plugging portion (22).

8. The temperature collection assembly according to claim 1 or 2, wherein the temperature sensor (2) is adapted to be detachably assembled at an edge or a middle portion of the top surface of the battery module main body (1).

9. A battery pack, comprising: a plurality of temperature acquisition assemblies according to any one of claims 1-8, and a plurality of said temperature sensors (2) of said temperature acquisition assemblies are arranged on a plurality of battery module bodies (1) of said battery pack in accordance with preset requirements.

10. The battery pack according to claim 9, wherein the battery pack comprises: the battery module comprises at least two battery module main bodies (1), wherein the same or different temperature sensors (2) are respectively arranged on the two battery module main bodies (1).