CN221947284U - Battery pack - Google Patents

Abstract

The application discloses a battery pack, which comprises a case, a battery core assembly and two terminal seats. The box shell is provided with a cavity, and the battery cell assembly is arranged in the cavity. The two terminal blocks are arranged on the box shell, the terminal blocks protrude out of the outer surface of the box shell, the terminal blocks are provided with clamping grooves and conductors arranged in the clamping grooves, and the conductors are electrically connected to the battery cell assembly. In the state that the battery is packaged in the battery cabinet, the electrode plates in the battery cabinet can penetrate through the clamping grooves and are in electric contact with the electric conductors. The battery pack of this patent application need not to carry out operation such as battery pack plug wire, wire pulling or fastener connection, makes battery pack charge and remove all more conveniently. And as no other plug-in parts exist, the device is not easy to damage in later use, and the later maintenance is simpler and more convenient.

Description

Battery pack

Technical Field

The utility model relates to the technical field of power conversion, in particular to a battery pack.

Background

When the battery pack in the traditional power exchange station is placed in the battery cabinet for charging, a power wire harness or a copper sheet is generally adopted to be connected and fixed with the battery cabinet through screws, so that the battery pack is connected in series or in parallel, and in the connection process, the wire harness assembly is easy to cause ignition due to short circuit of the positive electrode and the negative electrode, so that personnel are injured and products are damaged. Moreover, the connection is troublesome, if manual connection is adopted, not only labor is consumed, but also high risk is caused, and if mechanical connection is adopted, not only special equipment is purchased, but also subsequent maintenance cost is increased. And generally, a special plug terminal is required to be plugged and connected with a battery pack, the internal parts of the plug terminal are complicated, the production cost is high, the damage is unavoidable in the use process, the frequent maintenance is required, and the maintenance cost is high.

In view of this, the present utility model has been made.

Disclosure of utility model

The utility model provides a battery pack.

The utility model adopts the following technical scheme:

A battery pack, comprising:

A housing having a cavity;

The battery cell assembly is arranged in the cavity;

The two terminal blocks are arranged on the box shell and protrude out of the outer surface of the box shell, each terminal block is provided with a clamping groove and a conductor arranged in the clamping groove, and the conductors are electrically connected to the battery cell assembly;

In the state that the battery is packaged in the battery cabinet, the electrode plates in the battery cabinet can penetrate through the clamping grooves and are in electric contact with the electric conductors.

Optionally, the terminal block is provided with a connecting body and two plate bodies;

The connector is connected to the case;

The two plate bodies are connected to the connecting body, and the clamping groove is formed between the two plate bodies;

The conductor is connected to the plate body.

Optionally, the electric conductor comprises two spring pieces;

the two elastic piece parts are respectively arranged on the corresponding plate body;

the two elastic piece pieces are electrically connected to the battery cell assembly;

And in the state that the battery is packaged into the battery cabinet, the two elastic piece pieces on the terminal seat are respectively attached to two sides of the electrode plate.

Optionally, the spring piece comprises a main piece part and a spring piece part;

the main sheet part is fixed on the plate body and is electrically connected with the battery cell assembly;

the elastic piece part is positioned in the clamping groove, and one end of the elastic piece part is connected with the main piece part;

In the state that the battery is packaged in the battery cabinet, the elastic sheet part elastically abuts against the surface of the electrode plate.

Optionally, one end of the elastic piece part, which is away from the case shell, is connected with the main piece part through a transition part;

In a direction from close to the case to far from the case;

the distance between the transition part and the surface of the plate body is gradually reduced.

Optionally, the terminal block has a reinforcing rib;

The reinforcing ribs are respectively connected with the plate body and the connecting body;

the reinforcing ribs are located on one side, away from the clamping grooves, of the plate body.

Optionally, an inserting body is arranged at one end of the connecting body, which is away from the plate body;

The box shell is provided with a mounting opening;

The plug body penetrates through the mounting opening, and the conductor extends to the plug body and is electrically connected with the battery cell assembly;

the connector covers the mounting opening.

Optionally, the case is a cube;

The two terminal blocks are arranged on the same flat wall of the case.

Optionally, the case comprises a top plate, a bottom plate and a peripheral side plate connecting the top plate and the bottom plate;

the peripheral side plates comprise four side plates which are sequentially and vertically connected;

the two terminal blocks are arranged on the same side plate.

Optionally, limiting plates are respectively arranged on two opposite sides of the case shell;

when the battery pack slides into the battery cabinet to the limit position, the limiting plate abuts against the stop plate on the battery cabinet.

By adopting the technical scheme, the utility model has the following beneficial effects:

The battery pack of this patent application can be directly connected with the interior electrode plate copper bar of battery cabinet that charges with two terminal blocks of usefulness through protruding in the case shell surface, and the battery pack pushes in the battery cabinet when charging, and the electrode plate is aimed at to the clamp groove on the terminal block, and the electrode plate can be followed and inserted in the clamp groove and be connected with the electric conductor electricity. When the battery pack is taken out after the charging is finished, the electrode plate can be pulled out of the clamping groove and separated from the conductor only by directly pulling out the battery pack. The operation of battery pack plug wire, wire pulling or fastener connection and the like is not needed, so that the battery pack is more convenient to charge and release. And as no other plug-in parts exist, the device is not easy to damage in later use, and the later maintenance is simpler and more convenient.

The following describes the embodiments of the present utility model in further detail with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. It is evident that the drawings in the following description are only examples, from which other drawings can be obtained by a person skilled in the art without the inventive effort. In the drawings:

fig. 1 is a schematic structural diagram of a battery pack and a battery cabinet according to an embodiment of the present application;

Fig. 2 is a partial enlarged view of a battery pack and a battery cabinet according to an embodiment of the present application;

Fig. 3 is a schematic structural view of a battery pack according to an embodiment of the present application;

fig. 4 is a schematic structural view of a battery pack according to an embodiment of the present application with a bottom plate removed;

fig. 5 is a schematic structural view of a terminal block of a battery pack according to an embodiment of the present application;

Fig. 6 is a schematic structural diagram of an electrical conductor of a battery pack according to an embodiment of the present application.

In the figure, a battery cabinet 1, a stop plate 15, an electrode plate 2, a top plate 41, a peripheral plate 43, a limit plate 44, a third connection hole 441, a mounting opening 45, a terminal block 6, an electric conductor 61, a spring piece 611, a main piece portion 6111, a spring piece portion 6112, a transition portion 6113, a connection body 62, a plate body 63, a reinforcing rib 64, a plug body 65, a drawing mating plate 7, and a battery pack 10.

It should be noted that these drawings and the written description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept to those skilled in the art by referring to the specific embodiments.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions in the embodiments will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model, and the following embodiments are used to illustrate the present utility model, but are not intended to limit the scope of the present utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected or integrally connected; 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 the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1 to 6, an embodiment of the present application provides a battery pack including a case, a battery cell assembly, and two terminal holders 6. The box shell is provided with a cavity, and the battery cell assembly is arranged in the cavity. The two terminal blocks 6 are arranged on the case, the terminal blocks 6 protrude out of the outer surface of the case, the terminal blocks 6 are provided with clamping grooves and conductors 61 arranged in the clamping grooves, and the conductors 61 are electrically connected to the battery cell assembly. In a state where the battery pack 10 is mounted in the battery case 1, the electrode plates 2 in the battery case 1 can penetrate the clamping grooves and electrically contact the electric conductor 61. The battery pack of this patent application can be directly connected with the electrode plate 2 copper bar in the battery cabinet 1 of usefulness that charges through protruding in two terminal blocks 6 of case shell surface, and in the battery cabinet 1 was pushed into to battery pack 10 during the charging, the electrode plate 2 was aimed at to the double-layered groove on the terminal block 6, and electrode plate 2 can be followed and insert in the double-layered groove and be connected with electric conductor 61 electricity. When the battery pack 10 is taken out after the charging is finished, the electrode plate 2 can be pulled out from the conductor 61 by directly pulling out the battery pack 10. The operations of wire insertion, wire pulling, fastener connection and the like of the battery pack 10 are not needed, so that the battery pack 10 is more convenient to charge and release. And as no other plug-in parts exist, the device is not easy to damage in later use, and the later maintenance is simpler and more convenient.

In one possible embodiment, the terminal block 6 has a connecting body 62 and two plate bodies 63. The connecting body 62 is connected to the case, the two plate bodies 63 are both connected to the connecting body 62, the clamping groove is formed between the two plate bodies 63, and the electric conductor 61 is connected to the plate bodies 63. The two plate bodies 63 are arranged at intervals to form clamping grooves, the area of the two plate bodies 63 is larger than that of the conductor 61, connection and support of the conductor 61 can be facilitated, and the conductor 61 can be protected. The connecting plate is used for switching the two plate bodies 63 and the box shell together, so that the connecting area of the connecting plate and the box shell is increased, and the connecting is ensured to be more stable. Preferably, the connecting body 62 is integrally formed with the two plate bodies 63, so that the structural strength is higher.

In one possible embodiment, the electrical conductor 61 includes two spring elements 611. The two spring pieces 611 are respectively disposed on the corresponding plate 63, and both the two spring pieces 611 are electrically connected to the electrical core assembly. In a state where the battery pack 10 is mounted in the battery cabinet 1, the two elastic pieces 611 on the terminal base 6 are respectively attached to both sides of the electrode plate 2. The elastic piece 611 has elasticity and conductivity, the elastic arrangement can reduce the interval between the two elastic piece 611 to enable the electrode plate 2 to be inserted between the two elastic piece 611 in an interference mode, the two elastic piece 611 provide clamping force for the electrode plate 2, the tight and stable fit between the electrode plate 2 and the elastic piece 611 is ensured, and the charging stability is ensured.

In one possible embodiment, the spring piece 611 includes a main piece portion 6111 and a spring piece portion 6112. The main sheet portion 6111 is fixed to the plate 63, the main sheet portion 6111 is electrically connected to the battery cell assembly, the elastic sheet portion 6112 is located in the clamping groove, one end of the elastic sheet portion 6112 is connected to the main sheet portion 6111, and in a state that the battery pack 10 is installed in the battery cabinet 1, the elastic sheet portion 6112 elastically abuts against the surface of the electrode plate 2. The connection part of the elastic piece part 6112 and the main piece part 6111 has a certain included angle, so that the elastic deformation and elastic recovery space between the elastic piece part 6112 and the main piece part 6111 is ensured, the contact area between the elastic piece part 611 and the electrode plate 2 can be increased by the arrangement of the main piece part 6111, the occurrence probability of poor contact is prevented, and the working stability is ensured.

In one possible embodiment, an end of the spring portion 6112 facing away from the case is connected to the main portion 6111 through a transition portion 6113. The distance between the transition portion 6113 and the surface of the plate body 63 gradually decreases in the direction from approaching the case to separating from the case. The transition portion 6113 has a certain included angle with the main sheet portion 6111, so that the transition portion 6113 has the capability of elastic deformation and elastic recovery, and a certain interval is formed between the elastic sheet portion 6112 and the plate body 63, so that a space is provided for elastic deformation and elastic recovery. A certain clamping force to the electrode plate 2 is ensured, and the stability of electric connection is ensured.

In one possible embodiment, the terminal block 6 has a stiffener 64. The reinforcing ribs 64 are respectively connected with the plate body 63 and the connecting body 62, and the reinforcing ribs 64 are positioned on one side of the plate body 63 away from the clamping groove. The reinforcing ribs 64 ensure stable positions of the plate body 63 and the connecting body 62, thereby ensuring stable connection of the plate body 63. The provision of the reinforcing ribs 64 on the side facing away from the clamping groove does not affect the insertion between the electrode plate 2 and the terminal block 6.

In one possible embodiment, a plug body 65 is disposed at an end of the connector 62 facing away from the plate 63, a mounting opening 45 is disposed on the case, the plug body 65 is disposed through the mounting opening 45, the conductor 61 extends to the plug body 65 and is electrically connected to the cell assembly, and the connector 62 covers the mounting opening 45. The plug body 65 penetrates through the box shell to facilitate connection of the electric conductor 61 and the battery cell assembly, and the plug structure strength is higher and connection is more stable through the plug body 65.

In one possible embodiment, the housing is a cube, and the two terminal blocks 6 are disposed on the same flat wall of the housing. Both terminal blocks 6 are disposed on a flat surface, which is convenient for the arrangement of the electrode plates 2, and is also convenient for the connection or disconnection of the terminal blocks 6 and the electrode plates 2 when the battery pack 10 is taken in or out.

In one possible embodiment, the case includes a top plate 41, a bottom plate, and a peripheral side plate 43 connecting the top plate 41 and the bottom plate. The peripheral side plate 43 includes four side plates sequentially connected vertically, and two of the terminal blocks 6 are disposed on the same side plate.

In one possible embodiment, the opposite sides of the housing are provided with limiting plates 44, respectively. When the battery pack 10 slides into the battery cabinet 1 to the limit position, the limit plate 44 abuts against the stop plate 15 on the battery cabinet 1. The limiting plate 44 limits the depth of the battery pack 10 extending into the battery cabinet 1, and when the limiting plate 44 abuts against the stop plate 15, the battery pack 10 is indicated to be put in place, and the battery pack 10 is connected and conducted with the electrode plate 2 of the battery cabinet 1.

In one possible embodiment, the limiting plate 44 is provided with a third connecting hole 441, and the stop plate 15 is provided with a fourth connecting hole, and one end of the fastener is connected to the fourth connecting hole through the third connecting hole 441. The battery pack 10 is guaranteed to be placed in the cabinet body 1 and then is stable in position, the situation that the terminal seat 6 is separated from the electrode plate 2 cannot occur, the conductive connection is guaranteed to be stable, and the battery pack is more stable and safer to charge.

In one possible embodiment, the battery pack 10 is provided with a drawing mating plate 7 on both sides, respectively. In a state where the limit plate 44 abuts against the stop plate 15 on the cabinet 1, a gap is provided between the drawer fitting plate 7 and the stop plate 15. The drawing-in mating plate 7 is required to facilitate the application of an outward drawing-out force in order for a machine or person to have an impetus to draw out or push in the battery pack 10, particularly when the battery pack 10 is taken out. The drawing matching plate 7 can be a plate body 63 formed after being bent together with the stop plate 15, so that the whole plate body 63 has large area, high overall strength and strong connection stability.

The above description is only of the preferred embodiments of the present utility model, and is not intended to limit the present utility model in any way, although the present utility model has been described in the preferred embodiments, it is not intended to limit the present utility model, and any person skilled in the art will not depart from the scope of the present utility model, when the technical content mentioned above is utilized to make a few changes or modifications to equivalent embodiments, but any simple modification, equivalent changes and modification made to the above embodiments according to the technical substance of the present utility model still fall within the scope of the present utility model.

Claims (10)

1. A battery pack, comprising: A box shell, wherein the box shell has a cavity; A battery cell assembly, wherein the battery cell assembly is disposed in the cavity; Two terminal seats, both of which are arranged on the box shell, and the terminal seats protrude from the outer surface of the box shell, the terminal seats have a clamping groove and a conductor arranged in the clamping groove, and the conductor is electrically connected to the battery core assembly; When the battery pack is placed in the battery cabinet, the electrode plates in the battery cabinet can pass through the clamping grooves and make electrical contact with the conductors. 2. The battery pack according to claim 1, characterized in that the terminal block has a connector and two plates; The connector is connected to the box shell; The two plates are connected to the connecting body, and the clamping groove is formed between the two plates; The conductor is connected to the plate. 3. The battery pack according to claim 2, wherein the conductor comprises two spring pieces; The two elastic pieces are respectively arranged on corresponding plates; The two spring pieces are electrically connected to the battery core assembly; When the battery pack is placed in the battery cabinet, the two spring pieces on the terminal seat are respectively attached to the two sides of the electrode plate. 4. The battery pack according to claim 3, characterized in that the elastic piece comprises a main piece portion and an elastic piece portion; The main sheet is fixed to the plate body, and the main sheet is electrically connected to the battery core assembly; The spring sheet portion is located in the clamping groove, and one end of the spring sheet portion is connected to the main sheet portion; When the battery pack is placed in the battery cabinet, the spring portion elastically presses against the surface of the electrode plate. 5. The battery pack according to claim 4, characterized in that one end of the elastic sheet portion facing away from the box shell is connected to the main sheet portion through a transition portion; In a direction from close to the housing to away from the housing; The distance between the transition portion and the surface of the plate body gradually decreases. 6. The battery pack according to claim 2, characterized in that the terminal seat has reinforcing ribs; The reinforcing ribs are respectively connected to the plate body and the connecting body; The reinforcing rib is located at a side of the plate body away from the clamping groove. 7. The battery pack according to claim 2, characterized in that a plug-in body is provided at one end of the connector away from the plate body; The box shell is provided with a mounting opening; The plug-in body is arranged through the installation opening, and the conductor extends to the plug-in body and is electrically connected to the battery core assembly; The connecting body covers the installation opening. 8. The battery pack according to claim 1, characterized in that the box shell is a cube; The two terminal seats are arranged on the same straight wall of the box shell. 9. The battery pack according to claim 8, characterized in that the box shell comprises a top plate, a bottom plate and a peripheral side plate connecting the top plate and the bottom plate; The peripheral side plate includes four side plates which are connected vertically in sequence; The two terminal seats are arranged on the same side plate. 10. The battery pack according to any one of claims 1 to 9, characterized in that limit plates are respectively provided on two opposite sides of the box shell; When the battery pack slides into the battery cabinet to the limit position, the limit plate stops against the stop plate on the battery cabinet.