CN219643014U - Protection assembly, battery pack and vehicle - Google Patents

Abstract

The utility model provides a protection component, a battery pack and a vehicle, wherein the protection component comprises: the protection seat is provided with a first through hole for installing the to-be-connected piece, a first side surface of the protection seat is provided with a first protection part surrounding the first through hole, and the first protection part defines an accommodating space for accommodating a part of the to-be-connected piece; the first side of protective cover is equipped with the second guard portion with first guard portion complex, under protective cover and the circumstances of protection seat complex, second guard portion and first guard portion complex in order to seal accommodation space. The protection component can utilize the first protection part to be matched with the second protection part to seal the accommodating space when the protection cover is matched with the protection seat, so that the to-be-connected piece accommodated in the accommodating space is prevented from being exposed, water vapor and dust can be effectively prevented from entering the accommodating space to cause corrosion damage to the to-be-connected piece, and the reliability of the protection component for protecting the water vapor and the dust is improved.

Description

Protection assembly, battery pack and vehicle

Technical Field

The utility model relates to the technical field of new energy automobiles, in particular to a protection component, a battery pack with the protection component and a vehicle with the battery pack.

Background

The positive pole and the negative pole of the battery module in the battery pack need be led out through the copper bar, and one end of the copper bar can be connected with a tray of the battery pack through bolts. In the prior art, a protection component is generally installed on the copper bar to protect the copper bar and the bolt. The protection component comprises a protection cover for protecting the copper bar and a rubber protection sleeve for protecting the bolt, wherein the rubber protection sleeve is arranged on the bolt and is stopped against the outer surface of the protection cover. However, the anti-condensation effect of the rubber protective sleeve is poor, and moisture easily permeates from a gap where the rubber protective sleeve is assembled with the protective cover.

Disclosure of Invention

An object of the present utility model is to provide a new technical solution of a protection component, which at least can solve the problem of poor anti-condensation effect of the protection component in the prior art.

It is a further object of the present utility model to provide a battery pack including the above-described protective assembly.

It is still another object of the present utility model to provide a vehicle including the above battery pack.

According to a first aspect of the present utility model there is provided a protective assembly comprising: the protection seat is provided with a first through hole for installing a to-be-connected piece, a first side surface of the protection seat is provided with a first protection part surrounding the first through hole, and the first protection part defines an accommodating space for accommodating a part of the to-be-connected piece; the protection cover, the first side of protection cover be equipped with first protection portion complex second protection portion under the protection cover with the protection seat cooperation condition, second protection portion with first protection portion cooperation is in order to seal accommodation space.

Optionally, the first protection portion and the second protection portion are respectively formed into annular protrusions coaxially arranged with the first through hole, the outer diameter of the first protection portion is smaller than the inner diameter of the second protection portion, and under the condition that the protection cover is matched with the protection seat, the first protection portion stretches into the second protection portion.

Optionally, in a case where the protective cover is mated with the protective seat, an end of the first protective portion abuts against the protective cover, and/or an end of the second protective portion abuts against the protective seat.

Optionally, the guard assembly further comprises: the connecting piece is connected with the protective cover and the protective seat, the connecting piece is switchable between a first state and a second state, the protective cover is matched with the protective seat under the condition that the connecting piece is in the first state, and the first protective part is separated from the second protective part under the condition that the connecting piece is in the second state.

Optionally, the connector is a flexible connector that is foldable to switch between the first and second states.

Optionally, the protection seat, the protection cover and the connecting piece are integrally formed.

Optionally, the inner wall surface of the first protection part is provided with a plurality of inwards protruding limit protrusions.

Optionally, the first side of the protective cover is provided with a connecting portion, the first side of the protective seat is provided with a matching portion, and the connecting portion is detachably connected with the matching portion.

Optionally, the number of the first through holes, the first protecting parts and the second protecting parts is two, the two first through holes are arranged at intervals, and the first through holes, the first protecting parts and the second protecting parts are in one-to-one correspondence.

According to a second aspect of the present utility model, there is provided a battery pack comprising: a battery module;

the extraction piece is used for extracting a positive electrode or a negative electrode of the battery module, and is provided with a second through hole; the protective assembly according to any one of the above embodiments; and the to-be-connected piece passes through the first through hole and the second through hole to be connected with the battery module.

According to a third aspect of the present utility model, there is provided a vehicle including the above-described battery pack.

According to the protection component, the first protection part is arranged on the protection seat, the second protection part is arranged on the protection cover, the first protection part surrounds the first through hole, the first protection part and the second protection part are matched to seal the containing space when the protection cover is matched with the protection seat, the to-be-connected piece contained in the containing space is prevented from being exposed, water vapor and dust can be effectively prevented from entering the containing space to cause corrosion damage to the to-be-connected piece, and the reliability of the protection component for protecting the water vapor and the dust is improved.

Other features of the present utility model and its advantages will become apparent from the following detailed description of exemplary embodiments of the utility model, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which 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 principles of the utility model.

Fig. 1 is a perspective view of a partial structure of a battery pack according to one embodiment provided by the present utility model;

FIG. 2 is a perspective view of the encircled portion of FIG. 1 at A with the protective cover closed;

FIG. 3 is a perspective view of the encircled portion of FIG. 1 at A with the protective cover open;

FIG. 4 is an exploded view of the encircled portion of FIG. 1 at A;

fig. 5 is a perspective view of a portion of the structure of a battery pack when a protective cover is closed according to one embodiment provided by the present utility model;

fig. 6 is an exploded view of a part of the structure of a battery pack according to one embodiment provided by the present utility model;

FIG. 7 is a perspective view of one view of a shield assembly according to one embodiment of the present utility model;

fig. 8 is a perspective view of yet another view of a protective assembly according to one embodiment provided by the present utility model.

Reference numerals

A battery pack;

a guard assembly 10;

a protective seat 11; a first through hole 111; a first guard 112; an accommodation space 113; a limit projection 114; a connection portion 115; a fence 117;

a protective cover 12; a second guard 121; a fitting portion 122;

a connecting member 13;

a lead-out member 30; a second through hole 31;

a member to be connected 40; a cap 41; an extension 42; a spacer 43;

a connecting frame 50;

a side rail 60;

a tray 70.

Detailed Description

Various exemplary embodiments of the present utility model will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise.

The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses.

Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

A shield assembly 10 according to an embodiment of the present utility model is described in detail below with reference first to the accompanying drawings.

As shown in fig. 1 to 8, a protective assembly 10 according to an embodiment of the present utility model includes: a protective seat 11 and a protective cover 12.

Specifically, the protection seat 11 is provided with a first through hole 111 for mounting the to-be-connected member 40, a first side surface of the protection seat 11 is provided with a first protection portion 112 surrounding the first through hole 111, the first protection portion 112 defines an accommodating space 113 accommodating a portion of the to-be-connected member 40, a first side surface of the protection cover 12 is provided with a second protection portion 121 mated with the first protection portion 112, and the second protection portion 121 mates with the first protection portion 112 to close the accommodating space 113 in a case that the protection cover 12 mates with the protection seat 11.

In other words, the shield assembly 10 according to the embodiment of the present utility model is mainly composed of the shield base 11 and the shield cover 12. Wherein the protective assembly 10 may be disposed in a battery pack for protecting the electrically conductive lead-out 30 in the battery pack.

Specifically, the protection seat 11 may be provided with a first through hole 111, and the to-be-connected member 40 may fix the protection seat 11 to the battery pack through the first through hole 111. Alternatively, the first through hole 111 may be a through hole penetrating the shield base 11, and the to-be-connected member 40 may be a bolt penetrating the first through hole 111 to mount the shield base 11 to the battery pack.

The first end of the first through hole 111 may penetrate through the first side surface of the protection seat 11, and the first side surface of the protection seat 11 may be provided with a first protection portion 112, and the first protection portion 112 may surround the first through hole 111 and define an accommodating space 113. That is, the first end of the first through hole 111 may communicate with the receiving space 113. The receiving space 113 may have a first opening and a second opening in an axial direction of the first through hole 111, the first opening of the receiving space 113 may face the first through hole 111 and communicate with the first through hole 111, and the second opening of the receiving space 113 may be distant from the first through hole 111.

The receiving space 113 may be used to receive a portion of the to-be-connected member 40, for example, when the to-be-connected member 40 is a bolt, the bolt may include a cap 41 and an extension 42, the diameter of the cap 41 may be greater than that of the extension 42, the extension 42 may be provided with threads, the cap 41 of the bolt may be received in the receiving space 113, and the extension 42 may pass through the first through hole 111 to fix the protection seat 11 on the battery pack.

The protection cover 12 and the protection seat 11 may be matched with each other, and the first side surface of the protection cover 12 may be provided with a second protection part 121 and may be matched with the first protection part 112. The second prevention part 121 and the first prevention part 112 may close the receiving space 113 when the first prevention part 112 and the second prevention part 121 are coupled.

Specifically, when the protective cover 12 and the protective base 11 are mated, the first side of the protective base 11 and the first side of the protective cover 12 may be opposite, the protective cover 12 may be disposed on the protective base 11, and the first side of the protective cover 12 and the second protective portion 121 may close the second opening of the accommodating space 113 to protect the portion of the to-be-connected member 40 accommodated in the accommodating space 113 from being corroded and damaged by moisture and dust entering the accommodating space 113 to the to-be-connected member 40.

In addition, when the shield cover 12 is separated from the shield seat 11, the first and second shield parts 112 and 121 may be separated, exposing the second opening of the receiving space 113, so as to facilitate the installation of the to-be-connected member 40.

It should be noted that, the protection seat 11 and the protection cover 12 may be made of an insulating material, and the protection assembly 10 may form an insulating protection for the to-be-connected member 40 when the protection assembly 10 is fixed to the battery pack, so as to prevent a portion of the to-be-connected member 40 received in the receiving space 113 from being exposed.

Thus, according to the protection assembly 10 of the embodiment of the present utility model, by providing the first protection portion 112 on the protection seat 11 and providing the second protection portion 121 on the protection cover 12, and making the first protection portion 112 surround the first through hole 111, the accommodating space 113 can be sealed by using the cooperation of the first protection portion 112 and the second protection portion 121 when the protection cover 12 is mated with the protection seat 11, the to-be-connected piece 40 accommodated in the accommodating space 113 is prevented from being exposed, and the steam and dust can be effectively prevented from entering the accommodating space 113 to cause corrosion damage to the to-be-connected piece 40, so that the reliability of protecting the protection assembly 10 from steam and dust is improved.

Optionally, the protection seat 11 may include a plate body and a rail 117, the first through hole 111 may penetrate the plate body along a thickness direction of the plate body, the first side surface of the plate body may be provided with the first protection portion 112, the second side surface of the plate body may be provided with the rail 117, the rail 117 may be disposed on a peripheral edge of the plate body, and a space formed by enclosing the rail 117 may be adapted to the connection frame 50 on the battery pack. When the protection seat 11 is installed, the protection seat 11, the lead-out member 30 and the connection frame 50 may be connected through the to-be-connected member 40, the lead-out member 30 may be disposed between the protection seat 11 and the connection frame 50, and the rail 117 may surround a portion of the lead-out member 30 to insulate and protect the lead-out member 30.

According to an embodiment of the present utility model, the first guard portion 112 and the second guard portion 121 are respectively formed as annular protrusions disposed coaxially with the first through hole 111, and the outer diameter of the first guard portion 112 is smaller than the inner diameter of the second guard portion 121, and the first guard portion 112 protrudes into the second guard portion 121 in the state that the guard cover 12 is engaged with the guard seat 11.

Specifically, the first guard 112 and the second guard 121 may be ring-shaped, respectively, and the ring-shaped first guard 112 and second guard 121 may be disposed coaxially with the first through hole 111, and an outer diameter of the first guard 112 may be smaller than an inner diameter of the second guard 121, so that the first guard 112 may be inserted into the second guard 121.

When the shield cover 12 is mated with the shield seat 11, the first shield portion 112 may protrude from the first side surface of the shield seat 11 toward the shield cover 12, the second shield portion 121 may protrude from the first side surface of the shield cover 12 toward the shield seat 11, and the first shield portion 112 may extend into the second shield portion 121 such that the outer circumferential surface of the first shield portion 112 is opposite to the inner circumferential surface of the second shield portion 121. The accommodating space 113 may be separated from the outside by the first and second guard portions 112 and 121, and the first and second guard portions 112 and 121 may form a double barrier, effectively preventing moisture and dust from entering the accommodating space 113.

Since the outer diameter of the first guard 112 may be smaller than the inner diameter of the second guard 121, a gap may be formed between the first guard 112 and the second guard 121 to facilitate insertion of the first guard 112 into the second guard 121. In addition, since the first and second guard portions 112 and 121 are coaxially disposed, a gap formed between the first and second guard portions 112 and 121 may be a uniform ring-shaped structure, thereby forming a detour structure between the accommodating space 113 and the outside, effectively preventing moisture from entering the accommodating space 113 through the gap.

Alternatively, the first guard portion 112 may also form an interference fit with the second guard portion 121 when extending into the second guard portion 121, and the outer diameter of the first guard portion 112 may be substantially the same as the inner diameter of the second guard portion 121 to reduce the size of the gap between the first guard portion 112 and the second guard portion 121.

In this embodiment, by setting the outer diameter of the first protection portion 112 smaller than the inner diameter of the second protection portion 121, when the protection cover 12 is mated with the protection seat 11, the first protection portion 112 may extend into the second protection portion 121, so as to form an inner annular protection layer and an outer annular protection layer in the accommodating space 113 accommodating the to-be-connected member 40, and moisture and dust may be effectively prevented from entering the accommodating space 113 to corrode the to-be-connected member 40.

Alternatively, the inner diameter of the first guard 112 may be larger than the diameter of the first through hole 111, so that the portion surrounded by the first guard 112 on the first side of the guard seat 11 may be formed as a limiting step, which may limit the cap 41 of the bolt.

According to other embodiments of the present utility model, with the shield cover 12 mated with the shield seat 11, the end of the first shield portion 112 abuts the shield cover 12 and/or the end of the second shield portion 121 abuts the shield seat 11.

Specifically, for convenience of explanation, the axial direction of the first through hole 111 may be defined as the first direction. Under the condition that the protective cover 12 is matched with the protective seat 11, in the first direction, the first end of the annular first protective part 112 can be arranged on the first side surface of the protective seat 11, the second end of the first protective part 112 can face the first side surface of the protective cover 12, the first end of the annular second protective part 121 can be arranged on the first side surface of the protective cover 12, and the second end of the second protective part 121 can face the first side surface of the protective seat 11. In addition, the second end of the first guard 112 may abut against the first side of the guard cover 12, and/or the second end of the second guard 121 may abut against the first side of the guard seat 11, which may include, but is not limited to, the following:

in the first case, the second end of the first protection part 112 is abutted against the first side surface of the protection cover 12, and the second end of the second protection part 121 is spaced apart from the first side surface of the protection seat 11, so that water vapor and dust are prevented from entering the accommodating space 113 between the first protection part 112 and the protection cover 12;

in the second case, the second end of the first protection part 112 is spaced from the first side surface of the protection cover 12, and the second end of the second protection part 121 abuts against the first side surface of the protection seat 11, so that water vapor and dust are prevented from entering the accommodating space 113 between the second protection part 121 and the protection seat 11;

in the third case, the second end of the first protection portion 112 abuts against the first side surface of the protection cover 12, the second end of the second protection portion 121 abuts against the first side surface of the protection seat 11, so that water vapor and dust are prevented from entering the accommodating space 113 between the first protection portion 112 and the protection cover 12 and between the second protection portion 121 and the protection seat 11, a two-layer closed structure is formed, and the water vapor and dust are further prevented from entering the accommodating space 113.

All three conditions can enable the first protection part 112, the second protection part 121, the first side surface of the protection seat 11 and the first side surface of the protection cover 12 to be matched and seal the containing space 113, so that external water vapor and dust are effectively prevented from entering the containing space 113.

In some embodiments of the present utility model, the guard assembly 10 further includes a connector 13, the connector 13 connecting the guard cover 12 and the guard seat 11, the connector 13 being switchable between a first state in which the guard cover 12 engages the guard seat 11 and a second state in which the connector 13 is in the second state in which the first guard 112 is separated from the second guard 121.

Specifically, the connection member 13 may be connected between the shield cover 12 and the shield seat 11, the connection member 13 may be switched between two states, and when the connection member 13 is in the first state, the shield cover 12 may be engaged with the shield seat 11, so that the first shield portion 112 and the second shield portion 121 are engaged to close the accommodating space 113, for example, the shield cover 12 may be disposed on the shield seat 11. When the connection member 13 is in the second state, the first and second guard portions 112 and 121 may be separated to expose the receiving space 113, facilitating installation of the connection member 40. In addition, when the connecting member 13 is in the second state, the protection seat 11 and the protection cover 12 may be separated.

In the present embodiment, the protection seat 11 and the protection cover 12 are connected by the connecting member 13, so that the protection cover 12 can be prevented from being lost in the attachment and detachment of the protection seat 11 and the protection cover 12. In addition, by switching the connecting member 13 between the two states, the first protecting portion 112 and the second protecting portion 121 can be matched or separated, so as to close or expose the accommodating space 113, and the protecting cover 12 and the protecting seat 11 can be conveniently detached according to the requirement.

According to some alternative embodiments of the utility model, the connection member 13 is a flexible connection member 13, the flexible connection member 13 being foldable to switch between a first state and a second state.

Wherein a first end of the flexible connection member 13 may be connected with the shield seat 11, a second end of the flexible connection member 13 may be connected with the shield cover 12, and the flexible connection member 13 may be folded such that the flexible connection member 13 may be switched between two states.

Specifically, when the flexible connection unit 13 is in the first state, the flexible connection unit 13 may be folded in a "U" shape, and the first end and the second end of the flexible connection unit 13 may be opposite to each other, so that the shield seat 11 and the shield cover 12 are opposite to each other.

When the flexible connection unit 13 is in the second state, the flexible connection unit 13 may be in a naturally extended state, the flexible connection unit 13 may be substantially in a "straight" shape, and the first and second ends of the flexible connection unit 13 may be spaced apart in a radial direction of the first through hole 111, so that the shield seat 11 and the shield cover 12 are spaced apart in the radial direction of the first through hole 111.

Under the action of external force, the flexible connecting piece 13 can be folded to enable the flexible connecting piece 13 to be switched from the second state to the first state. When the external force is removed, the flexible connecting piece 13 can be restored from the first state to the second state under the action of self elasticity.

In this embodiment, the connecting piece 13 is set as the flexible connecting piece 13, so that the connecting piece 13 can be repeatedly folded, which is beneficial to prolonging the service life of the connecting piece 13, and the flexible connecting piece 13 has a simple structure and is easy to manufacture.

Alternatively, the number of connectors 13 may be plural, and each connector 13 may be a sheet-like structure to reduce the risk of failure of the connector 13 during repeated folding.

According to other embodiments of the present utility model, the shield seat 11, the shield cover 12 and the connecting member 13 are integrally formed. The protection seat 11, the protection cover 12 and the connecting piece 13 are arranged into an integral part, and the installation and protection of the connecting piece 40 to be connected can be realized through one structural piece, so that the variety of parts in the protection assembly 10 can be reduced, and the production cost of the protection assembly 10 can be reduced.

Alternatively, the protection seat 11, the protection cover 12 and the connecting piece 13 may be integrally formed engineering plastic pieces, and since the engineering plastic pieces have the advantages of insulation, high strength and corrosion resistance, the integrally formed pieces are made of engineering plastic, which is beneficial to improving the strength and corrosion resistance of the protection assembly 10 and reducing the production cost of the protection assembly 10. In addition, since the first protection part 112 and the second protection part 121 form a double-layer protection structure for the accommodating space 113, the protection seat 11 and the protection cover 12 made of engineering plastics can also effectively block water vapor and dust when being matched, thereby realizing a closed effect.

In some embodiments of the present utility model, the inner wall surface of the first guard 112 is provided with a plurality of inward protruding stop protrusions 114.

Specifically, the limiting protrusion 114 may be disposed on the inner wall surface of the first shielding part 112 and spaced apart from the first side surface of the shielding seat 11, the portion of the to-be-connected member 40 accommodated in the accommodating space 113 may be located between the first side surface of the shielding seat 11 and the limiting protrusion 114, and the cooperation of the limiting protrusion 114 and the first side surface of the shielding seat 11 may limit the movement of the to-be-connected member 40 in the first direction.

For example, the number of the limiting protrusions 114 may be two, the two limiting protrusions 114 may be disposed along the center of the axis of the first through hole 111, the to-be-connected member 40 may be a bolt, a nut of the bolt may be limited by the limiting protrusions 114 and the limiting step, a distance between the two limiting protrusions 114 may be smaller than an inner diameter of the first protection portion 112, and a diameter of the cap portion 41 of the bolt may be substantially the same as the inner diameter of the first protection portion 112, so that the two limiting protrusions 114 may limit the cap portion 41 of the bolt.

It should be noted that, the limiting protrusion 114 may perform a small displacement in the radial direction of the first through hole 111, so that the cap 41 of the bolt may pass through the limiting protrusion 114 and enter between the limiting protrusion 114 and the limiting step.

When the protection component 10 is installed, the bolts can be firstly installed in the first through holes 111, the nuts of the bolts are limited by the limiting protrusions 114, the pre-assembly between the protection component 10 and the bolts is realized, and the bolts are prevented from being separated from the protection component 10 in the process of installing the protection component 10. The preassembled protection assembly 10 is then connected to the lead-out member 30 by bolts, etc., to fix the protection assembly 10 to the battery pack.

In this embodiment, by providing the plurality of limiting protrusions 114 on the inner wall surface of the first protection portion 112, the to-be-connected member 40 may be limited by using the limiting protrusions 114, so that a pre-assembly is formed between the protection component 10 and the to-be-connected member 40, and the falling risk of the to-be-connected member 40 in the installation process of the protection component 10 is reduced. The pre-assembled to-be-connected piece 40 can also be used as a positioning structure of the protection component 10, so that the protection component 10 is conveniently positioned and connected with the structure such as the leading-out piece 30 in the installation process, and a clamping structure matched with the protection component 10 is not required, thereby being beneficial to improving the installation efficiency.

According to some alternative embodiments of the present utility model, the first side of the shield cover 12 is provided with the connection portion 115, and the first side of the shield seat 11 is provided with the mating portion 122, and the connection portion 115 is detachably connected with the mating portion 122.

Specifically, the shield cap 12 and the shield cap 11 may be detachably connected through the connection part 115 and the fitting part 122, the shield cap 11 and the shield cap 12 are fitted in a case where the connection part 115 is connected to the fitting part 122, the shield cap 11 and the shield cap 12 may be separated in a case where the connection part 115 is disconnected from the fitting part 122, and the first shield part 112 and the second shield part 121 may be separated. Through setting up connecting portion 115 and mating portion 122 detachably and being connected, can make things convenient for and dismantle between protection seat 11 and the protection lid 12, the structure of conveniently being protected by protection subassembly 10 overhauls or changes.

Alternatively, the connection portion 115 may be a buckle disposed on the first side of the shield cover 12, and the mating portion 122 may be a bayonet disposed on the shield seat 11, with a detachable connection between the buckle and the bayonet.

According to other embodiments of the present utility model, the number of the first through holes 111, the first guard portions 112 and the second guard portions 121 is two, the two first through holes 111 are spaced apart, and the first through holes 111, the first guard portions 112 and the second guard portions 121 are in one-to-one correspondence.

That is, the protection seat 11 is provided with two spaced first through holes 111 and two corresponding first protection portions 112, the protection cover 12 is provided with two corresponding second protection portions 121, when the protection seat 11 is matched with the protection cover 12, the two first through holes 111, the two first protection portions 112 and the two second protection portions 121 are matched one by one to form two closed accommodating spaces 113 for accommodating the two to-be-connected pieces 40, the two to-be-connected pieces 40 can be respectively connected with the two lead-out pieces 30, the two lead-out pieces 30 can be respectively a positive lead-out piece 30 and a negative lead-out piece 30 of the battery pack, and protection of the two lead-out pieces 30 and the two to-be-connected pieces 40 can be realized by using one protection assembly 10.

Alternatively, the first side surface of the mounting seat may be a substantially rectangular surface, the two first through holes 111 and the two first protection portions 112 may be symmetrically disposed on the first side surface of the mounting seat, and the mating portion 122 may be disposed between the two first protection portions 112. The first side of the mounting cover may be a substantially rectangular surface, the two second guard portions 121 may be symmetrically disposed at the first side of the mounting cover, and the connection portion 115 may be disposed between the two second guard portions 121.

The embodiment of the utility model also provides a battery pack, which comprises: the battery module, the lead-out member 30, the sheathing assembly 10, and the to-be-connected member 40.

Specifically, the lead-out member 30 is used for leading out the positive electrode or the negative electrode of the battery module, the lead-out member 30 is provided with the second through hole 31, the protection assembly 10 according to any one of the above embodiments is the protection assembly 10, and the to-be-connected member 40 is connected with the battery module through the first through hole 111 and the second through hole 31.

In other words, the battery pack of the present embodiment may be mainly composed of the battery module, the lead-out member 30, the sheathing assembly 10, and the to-be-connected member 40. The battery module may include a plurality of unit batteries therein, and the positive electrode or the negative electrode of the battery module may be led out through the lead-out member 30. The lead-out member 30 may be provided with a second through hole 31, and the to-be-connected member 40 may pass through the first through hole 111 and the second through hole 31 to fix the protection assembly 10 to the lead-out member 30.

For example, the number of the lead-out members 30 may be two, the two lead-out members 30 may be copper bars, each copper bar is provided with a second through hole 31, the battery pack may further be provided with a tray 70 and a side beam 60 disposed on the inner side wall of the tray 70, the side beam 60 may be provided with a connecting frame 50, the connecting frame 50 may be provided with two threaded holes, the two threaded holes respectively correspond to the two first through holes 111, and the member to be connected 40 may be a bolt.

When the protection component 10 is installed, the bolt can firstly pass through the first through hole 111, the nut of the bolt is accommodated in the accommodating space 113 and limited by the limiting protrusion 114 in the first protection part 112, and the pre-assembly of the bolt and the protection component 10 is realized. Then, two bolts can respectively pass through the corresponding second through holes 31 on the two copper bars and are connected with the corresponding threaded holes on the connecting frame 50, so as to fix the protection assembly 10. Finally, the flexible connecting piece 13 can be folded and the flexible connecting piece 13 is switched to the first state, so that the protective cover 12 is covered on the protective seat 11, the first protective part 112 stretches into the second protective part 121 to seal the accommodating space 113, and water vapor and dust are prevented from entering the accommodating space 113 to corrode bolts.

Optionally, the bolts may be made of carbon steel and alloy steel, the integrally formed protective component 10 may be made of engineering plastics such as PA, PC, PP or POM, the copper bars may be made of red copper, the connecting frame 50 may be made of red copper and engineering plastics, and the edge beam 60 may be made of aluminum alloy or die-cast aluminum.

Since the protection assembly 10 according to the embodiment of the present utility model has the above technical effects, the battery pack according to the embodiment of the present utility model also has the corresponding technical effects, that is, when the protection cover 12 is mated with the protection seat 11, the first protection portion 112 and the second protection portion 121 are mated to seal the accommodating space 113, so that the to-be-connected member 40 accommodated in the accommodating space 113 is prevented from being exposed, and the to-be-connected member 40 can be effectively prevented from being corroded and damaged by water vapor and dust entering the accommodating space 113, thereby improving the reliability of protecting the protection assembly 10 from water vapor and dust.

Optionally, a spacer 43 may be provided between the bolt and the shield seat 11 to increase the strength of the connection between the bolt and the shield seat 11.

The embodiment of the utility model also provides a vehicle, which comprises the battery pack according to the embodiment. Since the battery pack according to the embodiment of the present utility model has the above technical effects, the vehicle according to the embodiment of the present utility model also has the corresponding technical effects, that is, the accommodating space 113 is sealed by the cooperation of the first protecting portion 112 and the second protecting portion 121 when the protecting cover 12 cooperates with the protecting seat 11, so that the to-be-connected member 40 accommodated in the accommodating space 113 is prevented from being exposed, and the to-be-connected member 40 can be effectively prevented from being corroded and damaged by the entry of moisture and dust into the accommodating space 113, thereby improving the reliability of protecting the protecting assembly 10 from moisture and dust.

While certain specific embodiments of the utility model have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the utility model. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the utility model. The scope of the utility model is defined by the appended claims.

Claims (11)

1. A protective assembly, comprising:

the protection seat is provided with a first through hole for installing a to-be-connected piece, a first side surface of the protection seat is provided with a first protection part surrounding the first through hole, and the first protection part defines an accommodating space for accommodating a part of the to-be-connected piece;

the protection cover, the first side of protection cover be equipped with first protection portion complex second protection portion under the protection cover with the protection seat cooperation condition, second protection portion with first protection portion cooperation is in order to seal accommodation space.

2. The guard assembly of claim 1, wherein the first guard portion and the second guard portion are each formed as an annular protrusion coaxially disposed with the first through hole, and an outer diameter of the first guard portion is smaller than an inner diameter of the second guard portion, the first guard portion extending into the second guard portion with the guard cover mated with the guard seat.

3. The guard assembly according to claim 2, wherein an end of the first guard portion abuts the guard cover and/or an end of the second guard portion abuts the guard seat with the guard cover mated with the guard seat.

4. The guard assembly of claim 1, further comprising:

the connecting piece is connected with the protective cover and the protective seat, the connecting piece is switchable between a first state and a second state, the protective cover is matched with the protective seat under the condition that the connecting piece is in the first state, and the first protective part is separated from the second protective part under the condition that the connecting piece is in the second state.

5. The guard assembly of claim 4, wherein the connector is a flexible connector that is foldable to switch between the first and second states.

6. The guard assembly of claim 4, wherein the guard seat, the guard cover, and the connector are integrally formed.

7. The guard assembly of claim 1, wherein the inner wall surface of the first guard portion is provided with a plurality of inwardly protruding stop projections.

8. The protective assembly of claim 1, wherein the first side of the protective cover is provided with a connecting portion, the first side of the protective seat is provided with a mating portion, and the connecting portion is detachably connected with the mating portion.

9. The protective assembly of any one of claims 1-8, wherein the number of the first through holes, the first protective portions, and the second protective portions is two, the two first through holes are arranged at intervals, and the first through holes, the first protective portions, and the second protective portions are in one-to-one correspondence.

10. A battery pack, comprising:

a battery module;

the extraction piece is used for extracting a positive electrode or a negative electrode of the battery module, and is provided with a second through hole;

a guard assembly as claimed in any one of claims 1 to 9;

and the to-be-connected piece passes through the first through hole and the second through hole to be connected with the battery module.

11. A vehicle comprising the battery pack of claim 10.