Battery pack

Abstract

The utility model provides a battery pack, including heat management part, water nozzle and connecting pipe, heat management part is provided in the accommodation chamber along the first direction, heat management part is provided with water gap along the second direction, water nozzle and connecting pipe are provided in the accommodation chamber along the second direction, water nozzle is connected between water gap and connecting pipe, water nozzle has the deformation part, and the deformation part has the deformation part. The deformation part can deform to adjust the size of the water nozzle in any one of the first direction, the second direction and the third direction, the size of the water nozzle is adjustable, connection of the water nozzle with a water opening and a connecting pipe in a limited space is greatly facilitated, the connecting difficulty of the water nozzle is reduced, and the service life of the water nozzle is prolonged. Meanwhile, tolerance generated when the water nozzle is connected can be absorbed under the deformation effect of the deformation part, the stress concentration phenomenon is avoided, and therefore the connection reliability of the water nozzle, the water opening and the connecting pipe is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a battery pack. Background Art

[0002] As the requirements for electric vehicle endurance increase, the energy density of the battery cells in the battery pack is getting higher and higher, and the heat generated by the battery pack during operation is getting higher and higher. In order to ensure the safe use of the battery pack, the requirements for cooling and heat dissipation of the battery pack are getting higher and higher.

[0003] At present, most battery packs on the market use thermal management components to dissipate heat. The thermal management components are connected using pipe crimping technology, and the liquid inlets and outlets of the thermal management components are connected with water nozzles.

[0004] However, during the process of connecting the water pipe and the faucet, the limited space between two adjacent faucets on the thermal management component makes the connection operation between the faucet and the water pipe difficult. Under the influence of the connection error, stress concentration may easily occur in the faucet or the water pipe, causing connection failure. Utility Model Content

[0005] In view of this, the utility model provides a battery pack to at least solve the problem in the prior art that the connection of the water tap is difficult and easily causes connection failure.

[0006] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0007] The utility model provides a battery pack, the battery pack having a containing cavity and a first direction, a second direction and a third direction intersecting in pairs, the battery pack comprising a thermal management component, a water nozzle and a connecting pipe;

[0008] The thermal management component is arranged in the accommodating cavity along the first direction, and the thermal management component is provided with a water outlet arranged along the second direction;

[0009] The water nozzle and the connecting pipe are arranged in the accommodating cavity along the second direction, and the water nozzle is connected between the water outlet and the connecting pipe;

[0010] The faucet has a deformation portion, and the deformation portion can be deformed to at least adjust the size of the faucet along the second direction.

[0011] Optionally, the deformation portion includes a plurality of protrusions and at least one recessed portion, the plurality of protrusions are arranged at intervals along the second direction, and two adjacent protrusions are connected by the recessed portion;

[0012] The deformation portion has a first outer peripheral surface with the second direction as an axial direction, and the protrusion extends away from the first outer peripheral surface in the radial direction.

[0013] Optionally, the protruding portion is an arc-shaped structure, and / or the recessed portion is an arc-shaped structure.

[0014] Optionally, there is an arc transition between the protruding portion and the recessed portion.

[0015] Optionally, the deformation portion includes a plurality of telescopic portions, and the plurality of telescopic portions are arranged along the second direction;

[0016] The telescopic portion includes a first matching portion and a second matching portion, the first matching portion and the second matching portion are connected to each other, and among two adjacent telescopic portions, the first matching portion of one of the telescopic portions is movably connected with the second matching portion of the other telescopic portion in the second direction.

[0017] Optionally, the faucet further includes a first connecting portion and a second connecting portion;

[0018] The first connection portion and the second connection portion are respectively arranged on two opposite sides of the deformation portion along the second direction, the first connection portion is connected to the water outlet, and the second connection portion is connected to the connection pipe.

[0019] Optionally, the stiffness of the first connecting portion is greater than the stiffness of the deformation portion, and / or the stiffness of the second connecting portion is greater than the stiffness of the deformation portion.

[0020] Optionally, the faucet further includes a first rigid transition portion and a second rigid transition portion, and the first rigid transition portion and the second rigid transition portion both extend along the second direction;

[0021] The first rigid transition portion is connected between the first connecting portion and the deformation portion, the rigidity of the first rigid transition portion is greater than the rigidity of the deformation portion, and / or the rigidity of the first rigid transition portion is less than the rigidity of the first connecting portion.

[0022] Optionally, the second rigid transition portion is connected between the second connecting portion and the deformation portion, the rigidity of the second rigid transition portion is greater than the rigidity of the deformation portion, and / or the rigidity of the second rigid transition portion is less than the rigidity of the second connecting portion.

[0023] Optionally, reinforcing ribs are provided on the outer periphery of the first rigid transition portion and / or the second rigid transition portion.

[0024] Optionally, the water nozzle further includes a limiting portion;

[0025] The limiting portion is arranged on a side of the first connecting portion close to the deformation portion, the limiting portion is matched with the water outlet in a limiting manner along the second direction, and the first connecting portion is inserted into the water outlet.

[0026] Optionally, the second connecting portion has a second outer peripheral surface with the second direction as the axial direction, and the second connecting portion is provided with a groove, the groove extends from the second outer peripheral surface to the axial direction of the second connecting portion, and a sealing member is provided in the groove.

[0027] Optionally, the first connection portion is welded or bonded to the nozzle, and the second connection portion is plugged into the connecting pipe.

[0028] Compared with the prior art, the battery pack described in the utility model has the following advantages:

[0029] The battery pack of the utility model includes a thermal management component, a water nozzle and a connecting tube. The thermal management component is arranged in a accommodating cavity along a first direction X. The thermal management component is provided with a water outlet arranged along a second direction. The water nozzle and the connecting tube are arranged in the accommodating cavity along the second direction, and the water nozzle is connected between the water outlet and the connecting tube. The water nozzle has a deformation portion, and the deformation portion can be deformed to adjust the size of the water nozzle at least along the second direction. The size of the water nozzle is adjustable, which greatly facilitates the connection of the water nozzle with the water outlet and the connecting tube in a limited space, reduces the difficulty of connecting the water nozzle, and at the same time, under the deformation action of the deformation portion, the tolerance generated when the water nozzle is connected can be absorbed to avoid stress concentration resulting in leakage, etc., thereby improving the connection reliability of the water nozzle, the water outlet and the connecting tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0031] Figure 1 This is a schematic diagram of a battery pack housing cavity in an embodiment of the present utility model;

[0032] Figure 2 yes Figure 1 A schematic cross-sectional view taken along direction A;

[0033] Figure 3 yes Figure 2 A partial enlarged schematic diagram of

[0034] Figure 4 This is a schematic diagram of an explosion in a battery pack housing cavity in an embodiment of the utility model;

[0035] Figure 5 is a schematic diagram of a thermal management component in an embodiment of the utility model;

[0036] Figure 6 yes Figure 5 A partial enlarged schematic diagram of

[0037] Figure 7It is a schematic diagram of a water nozzle in an embodiment of the utility model;

[0038] Figure 8 yes Figure 7 Schematic cross-sectional view of ;

[0039] Fig. 9 It is a schematic diagram of another water nozzle in the embodiment of the utility model;

[0040] Fig.10 yes Fig. 9 Schematic cross-section diagram of .

[0041] Description of reference numerals:

[0042] 1-water nozzle, 11-first connecting part, 110-third outer peripheral surface, 111-plug interface, 12-second connecting part, 120-second outer peripheral surface, 121-groove, 13-deformation part, 130-first outer peripheral surface, 131-protrusion, 132-recess, 133-telescopic part, 134-first matching part, 135-second matching part, 14-first rigid transition part, 15-second rigid transition part, 16-limiting part, 2-thermal management component, 21-plate body, 22-water outlet, 3-connecting pipe, 4-battery core. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0044] The terms "first", "second", etc. in the specification and claims of the present utility model are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the utility model can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0045] The term "parallel" in this application includes not only the absolute parallel situation, but also the generally parallel situation conventionally recognized in engineering, such as "parallel" refers to the state where the angle formed by a straight line, a straight line and a plane, or a plane and a plane is -1° to 1°; at the same time, "vertical" also includes not only the absolute vertical situation, but also the generally vertical situation conventionally recognized in engineering, such as "vertical" refers to the state where the angle formed by a straight line, a straight line and a plane, or a plane and a plane is 89° to 91°. Equal distances or equal angles include not only the absolute equal situation, but also the generally equal situation conventionally recognized in engineering, that is, there may be a certain error, such as the state where the tolerance range is -1% to 1%.

[0046] It should be understood that the reference to "some embodiments" throughout the specification means that specific features, structures or characteristics related to the embodiments are included in at least one embodiment of the utility model. Therefore, the "in some embodiments" appearing in various places throughout the specification does not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner.

[0047] A battery pack provided by the present invention is described in detail below by listing specific embodiments.

[0048] Reference Figures 1 to 6 An embodiment of the utility model provides a battery pack, which has a accommodating cavity and a first direction X, a second direction Y and a third direction Z intersecting each other. The battery pack includes a thermal management component 2, a water nozzle 1 and a connecting pipe 3; the thermal management component 2 is arranged in the accommodating cavity along the first direction X, and the thermal management component 2 is provided with a water outlet 22 arranged along the second direction Y; the water nozzle 1 and the connecting pipe 3 are arranged in the accommodating cavity along the second direction Y, and the water nozzle 1 is connected between the water outlet 22 and the connecting pipe 3; the water nozzle 1 has a deformation portion 13, and the deformation portion 13 can be deformed to at least adjust the size of the water nozzle 1 along the second direction Y.

[0049] Specifically, the first direction X, the second direction Y and the third direction Z intersect each other. Figures 1 to 3 It shows the situation that the first direction X, the second direction Y and the third direction Z are perpendicular to each other. The thermal management component 2 has a coolant flow channel inside. The liquid inlet and the liquid outlet of the coolant flow channel are connected to the nozzle 1. The nozzle 1 is connected to the connecting pipe 3. The coolant flow channel, the nozzle 1 and the connecting pipe 3 together form a cooling circuit of the battery pack. The coolant circulates in the cooling circuit to take away the heat generated during the operation of the battery cell, thereby cooling the battery pack.

[0050] like Figure 1 and Figure 4As shown, the battery pack has a receiving cavity, and a plurality of battery cells 4 are arranged in the receiving cavity in sequence along the second direction Y. The thermal management component 2 is arranged between two adjacent battery cells 4 and extends along the first direction X. Figure 5 As shown, the thermal management component 2 includes a plate body 21, and a water inlet 22 is provided at the end of the plate body 21 along the first direction X. The water inlet 22 can be provided at one end of the plate body 21, or at both ends of the plate body 21. The surface of the plate body 21 abuts against the surface of the battery cell 4 to enhance the cooling and heat dissipation effect on the battery cell 4. The water inlet 22 can protrude from the surface of the plate body 21 along the second direction Y, or it can be flush with the surface of the plate body 21. The water nozzle 1 and the connecting pipe 3 are provided in the accommodating cavity along the second direction Y, and one end of the water nozzle 1 is connected to the water inlet 22, and the other end is connected to the connecting pipe 3. The shape of the water nozzle 1 in the plane formed by the first direction X and the third direction Z can be any shape such as circular, elliptical, square, rectangular, etc., as long as the shape structure of the end of the water nozzle 1 is respectively adapted to the shape structure of the water inlet 22 and the connecting pipe 3.

[0051] The faucet 1 has a deformation part 13, which can be made of materials such as rubber, silicone, plastic, etc., and has a certain deformation ability, so that the deformation part 13 can be deformed along the second direction Y, thereby adjusting the size of the faucet 1 along the second direction Y, and can also be deformed in any direction within the plane formed by the first direction X and the third direction Z, thereby adjusting the position of the faucet 1 within the plane formed by the first direction X and the third direction Z. Exemplarily, in the process of connecting the faucet 11 with the water outlet 22 and the connecting pipe 3, due to the limited space between two adjacent water outlets 22 on the thermal management component 2, when the faucet 1 is subjected to a force in the second direction Y, the deformation part 13 can be deformed in the second direction Y within the deformation range, thereby absorbing the force, preventing the force from acting on both ends of the faucet 1 to form stress concentration, resulting in failure of the connection between the faucet 11 and the water outlet 22 and the connecting pipe 3. Due to the existence of tolerances and errors, when the water nozzle 11 is subjected to a force in the first direction X or the third direction Z, interference is likely to occur between the water nozzle 11 and the water outlet 22 and the connecting pipe 3. At this time, the deformation portion 13 can deform in the first direction X or the third direction Z within the deformation range to avoid stress concentration, thereby allowing the two ends of the water nozzle 1 to rotate relative to each other, thereby ensuring the connection effect between the water nozzle 1 and the water outlet 22 and the connecting pipe 3.

[0052] In summary, the battery pack of the utility model embodiment includes a thermal management component 2, a water nozzle 1 and a connecting tube 3, the thermal management component 2 is arranged in the accommodating cavity along the first direction X, the thermal management component 2 is provided with a water outlet 22 arranged along the second direction Y, the water nozzle 1 and the connecting tube 3 are arranged in the accommodating cavity along the second direction Y, and the water nozzle 1 is connected between the water outlet 22 and the connecting tube 3, the water nozzle 1 has a deformation portion 13, the deformation portion 13 can be deformed to adjust the size of the water nozzle 1 along any direction of the first direction X, the second direction Y or the third direction Z. The size of the water nozzle 1 is adjustable, which greatly facilitates the connection of the water nozzle 1 with the water outlet 22 and the connecting tube 3 in a limited space, reduces the connection difficulty of the water nozzle 1, and at the same time, under the deformation action of the deformation portion 13, the tolerance generated when the water nozzle 1 is connected can be absorbed to avoid stress concentration, thereby improving the connection reliability of the water nozzle 1 with the water outlet 22 and the connecting tube 3.

[0053] Optional, Figure 7 It is a schematic diagram of a water nozzle in an embodiment of the utility model. Figure 8 yes Figure 7 Schematic diagram of the cross section, see Figure 7 and Figure 8 The deformation portion 13 includes a plurality of protrusions 131 and a plurality of recesses 132. The plurality of protrusions 131 are arranged at intervals along the second direction Y, and two adjacent protrusions 131 are connected by the recesses 132. The deformation portion 13 has a first outer peripheral surface 130 with the second direction Y as the axial direction, and the protrusions 131 extend radially away from the first outer peripheral surface 130.

[0054] Specifically, the deformation portion 13 has a first outer peripheral surface 130 with the second direction Y as the axial direction, and the protrusion 131 extends in a direction away from the first outer peripheral surface 130 along the radial direction of the first outer peripheral surface 130, that is, the protrusion 131 extends in a direction away from the axis of the deformation portion 13 along any direction in the plane formed by the first direction X and the third direction Z, and the recessed portion 132 extends in a direction close to the first outer peripheral surface 130 along the radial direction of the first outer peripheral surface 130, that is, the recessed portion 132 extends in a direction close to the axis of the deformation portion 13 along any direction in the plane formed by the first direction X and the third direction Z. The size of the protrusion 131 protruding from the first outer peripheral surface 130 can be set according to actual needs, and the size of the recessed portion 132 recessed in the first outer peripheral surface 130 can also be set according to actual needs, and the embodiment of the utility model is not limited to this.

[0055] A plurality of protrusions 131 are arranged at intervals along the second direction Y, and the size of the intervals between two adjacent protrusions 131 can be the same or different, and can be specifically arranged according to the size of the deformation portion 131 along the second direction Y. Two adjacent protrusions 131 are connected by a recessed portion 132, so that the first outer peripheral surface 130 has an uneven structure, which has good deformation ability and helps to control the overall size of the deformation portion 131 along the second direction Y, so as to avoid the overall size of the deformation portion 131 along the second direction Y being too long, which causes the volume of the faucet 1 to increase. It should be noted that the protrusion 131 can be in the form of a protrusion or a recess in a triangular shape, a trapezoidal shape, a rectangular shape, an arc shape, etc., and the recessed portion 132 can be in the form of a protrusion or a recess in a triangular shape, a trapezoidal shape, a rectangular shape, an arc shape, etc., which can ensure the deformation ability of the deformation portion 13. As shown in FIG. Figure 4 and Figure 5 It is shown that the protruding portion 131 is protruding in an arc shape and the recessed portion 132 is recessed. The protruding portion 131 is an arc structure, and the recessed portion 132 is an arc structure. This structure makes the outer peripheral surface of the deformation portion 13 present a wavy structure, and its deformation ability is stronger. It can realize deformation along the first direction X, the second direction Y and the third direction Z, and is more helpful to realize the size change of the water nozzle 1 and absorb the connection tolerance of the water nozzle 1, thereby improving the connection reliability between the water nozzle 1 and the water outlet 22 and the connecting pipe 3.

[0056] In this embodiment, the protruding portion 131 and the recessed portion 132 are transitioned in an arc shape, so that the deformable portion 13 can be deformed better, thereby absorbing assembly tolerance.

[0057] Optional, Fig. 9 It is a schematic diagram of another water nozzle in the embodiment of the utility model. Fig.10 yes Fig. 9 Schematic diagram of the cross section, see Fig. 9 and Fig.10 The deformation portion 13 includes a plurality of telescopic portions 133, and the plurality of telescopic portions 133 are arranged along the second direction Y; the telescopic portion 133 includes a first matching portion 134 and a second matching portion 135, and the first matching portion 134 and the second matching portion 135 are connected to each other. Among two adjacent telescopic portions 133, the first matching portion 134 of one telescopic portion 133 is movably connected with the second matching portion 135 of the other telescopic portion 133 at least in the second direction Y. The orthographic projection of the second matching portion 135 in the plane formed by the first direction X and the third direction Z is located within the orthographic projection of the first matching portion 134 in the plane formed by the first direction X and the third direction Z.

[0058] Specifically, each telescopic portion 133 is an integrally formed structure, and the orthographic projection of the second matching portion 135 in the plane formed by the first direction X and the third direction Z is located within the orthographic projection of the first matching portion 134 in the plane formed by the first direction X and the third direction Z, that is, the radial dimension of the second matching portion 135 along the deformation portion 13 is smaller than the radial dimension of the first matching portion 134 along the deformation portion 13, so that each telescopic portion 133 has an S-shaped structure to achieve the movable connection and limit of adjacent telescopic portions 133. Figure 7 As shown, the first matching portion 134 and the second matching portion 135 are both provided with an interlocking groove, and the first matching portion 13 and the second matching portion 135 of two adjacent telescopic portions 133 are movably connected through the interlocking groove. Specifically, the first matching portion 134 of the telescopic portion 133 is nested and connected with the second matching portion 135 of the adjacent telescopic portion 133. When the deformation portion 13 is squeezed, the depth of the second matching portion 135 embedded in the first matching portion 134 along the second direction Y increases, thereby realizing the deformation of the deformation portion 13 along the second direction Y. Under the extreme degree, the first matching portions 134 of the two adjacent telescopic portions 133 abut against each other, and at this time, the size of the deformation portion 13 along the second direction Y is the smallest. In this embodiment, the deformation ability of the deformation portion 13 is stronger, which is more conducive to the connection of the faucet 1 in a limited space. In addition, this connection method can also realize that the adjacent telescopic portions 133 can realize relative circumferential movement, thereby further improving the reliability of assembly.

[0059] Optional, see Figure 3 The faucet 1 also includes a first connection portion 11 and a second connection portion 12; the first connection portion 11 and the second connection portion 12 are respectively arranged on opposite sides of the deformation portion 13 along the second direction Y, the first connection portion 11 is connected to the water outlet 22, and the second connection portion 12 is connected to the connecting pipe 3.

[0060] Specifically, the first connection part 11 and the second connection part 12 are respectively arranged on opposite sides of the deformation part 13 along the second direction Y, and are respectively connected to the deformation part 13, and the connection forms include but are not limited to adhesive connection, snap connection, plug connection, fastener assembly connection, etc. Preferably, the first connection part 11 and the second connection part 12 are integrally formed with the deformation part 13. In the embodiment of the utility model, the first connection part 11 and the water outlet 22 are connected by welding or bonding, and the first connection part 11 and the water outlet 22 cannot generate relative movement, and the second connection part 12 is plug-connected with the connecting pipe 3, and the second connection part 12 and the connecting pipe 3 can generate relative movement, thereby realizing the size and position adjustment of the water nozzle 1.

[0061] The shape and structure of the first connection part 11 are adapted to the shape and structure of the water outlet 22, and the water nozzle 1 is connected to the water outlet 22 through the first connection part 11. The shape and structure of the second connection part 12 are adapted to the shape and structure of the connecting pipe 3, and the water nozzle 1 is connected to the connecting pipe 3 through the second connection part 12. The first connection part 11 and the second connection part 12 can be made of metal, alloy or hard plastic and have a certain strength and rigidity to ensure the reliability of the connection between the first connection part 11 and the water outlet 22 and the second connection part 12 and the connecting pipe 3, and to avoid the water nozzle 1 from being excessively deformed and loosened.

[0062] Furthermore, the stiffness of the first connection part 11 is greater than the stiffness of the deformation part 13, or the stiffness of the second connection part 12 is greater than the stiffness of the deformation part 13, or the stiffness of the first connection part 11 and the second connection part 12 are both greater than the stiffness of the deformation part 13. If the stiffness of the first connection part 11 or the second connection part 12 is greater than the stiffness of the deformation part 13, the overall deformation ability of the faucet 1 is relatively better and is more suitable for connection in a limited space. If the stiffness of the first connection part 11 and the second connection part 12 is greater than the stiffness of the deformation part 13, the overall stability of the faucet 1 is relatively better and can better ensure the connection reliability between the faucet 1 and the water outlet 22 and the connecting pipe 3. The specific settings can be made according to actual needs, and the embodiments of the present invention are not limited to this.

[0063] Optional, see Figure 7 and Figure 8 The faucet 1 further comprises a first rigid transition portion 14 and a second rigid transition portion 15 , and both the first rigid transition portion 14 and the second rigid transition portion 15 extend along the second direction Y.

[0064] Specifically, the first rigid transition portion 14 and the second rigid transition portion 15 are also respectively arranged on the opposite sides of the deformation portion 13 along the second direction Y, one end of the first rigid transition portion 14 is connected to the deformation portion 13, and the other end is connected to the first connection portion 11, and one end of the second rigid transition portion 15 is connected to the deformation portion 13, and the other end is connected to the second connection portion 12.

[0065] In some embodiments, the stiffness of the first rigid transition portion 14 is greater than the stiffness of the deformation portion 13, or the stiffness of the first rigid transition portion 14 is less than the stiffness of the first connection portion 11, or the stiffness of the first rigid transition portion 14 is both greater than the stiffness of the deformation portion 13 and less than the stiffness of the first connection portion 11. This can effectively avoid stress concentration at the boundary between the deformation portion 13 and the first connection portion 11, which may cause cracking of the faucet 1. At the same time, the setting of the first rigid transition 14 can enable the deformation portion 13 with smaller stiffness to be effectively connected to the connecting pipe 3 or the thermal management component 2, avoiding deformation at the connection position and causing leakage, thereby further improving the connection reliability between the faucet 1 and the connecting pipe 3 or the thermal management component 2.

[0066] In some embodiments, the stiffness of the second rigid transition portion 15 is greater than the stiffness of the deformation portion 13, or the stiffness of the second rigid transition portion 15 is less than the stiffness of the second connection portion 12, or the stiffness of the second rigid transition portion 15 is both greater than the stiffness of the deformation portion 13 and less than the stiffness of the second connection portion 12. This can effectively avoid stress concentration at the boundary between the deformation portion 13 and the second connection portion 12, which may cause cracking of the faucet 1. At the same time, the setting of the second rigid transition 15 can enable the deformation portion 13 with smaller stiffness to be effectively connected to the connecting pipe 3 or the thermal management component 2, avoiding deformation at the connection position and causing leakage, thereby further improving the connection reliability between the faucet 1 and the connecting pipe 3 or the thermal management component 2.

[0067] In some embodiments, the outer circumference of the first rigid transition portion 14 is provided with reinforcing ribs, or the outer circumference of the second rigid transition portion 15 is provided with reinforcing ribs.

[0068] In some other embodiments, reinforcing ribs are provided on the outer peripheries of the first rigid transition portion 14 and the second rigid transition portion 15 .

[0069] Specifically, the first rigid transition portion 14 and the second rigid transition portion 15 both have an outer peripheral surface with the second direction Y as the axial direction, and the reinforcing ribs are arranged on the outer peripheral surface and are arranged around the outer peripheral surface. The reinforcing ribs can be a plurality of point-shaped protrusions, strip-shaped protrusions, etc. arranged on the outer peripheral surface, and the specific structure thereof is not limited in the embodiment of the utility model. The arrangement of the reinforcing ribs can improve the structural strength of the first rigid transition portion 14 and the second rigid transition portion 15, thereby effectively connecting the faucet 1 with the thermal management component 2 or the connecting pipe 3.

[0070] Optional, see Figures 7 to 9 The faucet 1 further includes a limiting portion 16 ; the limiting portion 16 is disposed on one side of the first connecting portion 11 close to the deformation portion 13 , the limiting portion 16 cooperates with the water outlet 22 in a limiting manner along the second direction Y, and the first connecting portion 11 is inserted into the water outlet 22 .

[0071] Specifically, the limiting portion 16 cooperates with the water outlet 22 of the thermal management component 2 in the second direction Y. The limiting portion 16 can limit the water nozzle 1 to prevent the water nozzle 1 from excessively extending into the water outlet 22, thereby blocking the coolant flow channel in the thermal management component 2. The first connecting portion 11 has a third outer peripheral surface 110 with the second direction Y as the axial direction. The limiting portion 16 is arranged on the third outer peripheral surface 110. The limiting portion 16 can be one or more raised blocks. The limiting portion 16 can be arranged around the third outer peripheral surface 110. It can form a partial surrounding structure around the third outer peripheral surface 110, or it can form a full circumferential surrounding structure around the third outer peripheral surface 110, that is, the limiting portion 16 is annular. The annular limiting portion 16 can play a more effective circumferential limiting effect, which is more helpful to ensure the connection reliability between the water nozzle 1 and the water outlet 22.

[0072] In addition, the first connection portion 11 also includes a plug interface 111, which is arranged on a side of the first connection portion 11 away from the deformation portion 13. The shape structure of the plug interface 111 is adapted to the shape structure of the water outlet 22 on the thermal management component 2. The plug interface 111 is inserted into the water outlet and connected to the water outlet 22. The outer peripheral surface of the plug interface 111 can abut against the inner wall of the water outlet 22, thereby avoiding the eccentricity between the water nozzle 1 and the water outlet 22, which causes the flow of coolant in the coolant flow channel to be obstructed.

[0073] Optional, see Figures 7 to 10 The second connection part 12 has a second outer peripheral surface 120 with the second direction Y as the axial direction. The second connection part 12 is provided with a groove 121 . The groove 121 extends from the second outer peripheral surface 120 to the axial direction of the second connection part 12 . A sealing member 122 is provided in the groove 121 .

[0074] Specifically, the groove 121 is arranged at one end of the second connecting part 12 away from the deformation part 13, and the second outer peripheral surface 120 is partially recessed to form the groove 121. The groove 121 can be arranged around the second outer peripheral surface 120, and the groove 121 extends along the axial direction of the second connecting part 12. A sealing member 122 is arranged in the groove 121. The sealing member 122 can be made of rubber, silicone, foam or other materials. The sealing member 122 can effectively seal the gap between the second connecting part 12 and the connecting pipe 3 to avoid leakage of the coolant.

[0075] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or terminal device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or terminal device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or terminal device including the elements.

[0076] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A battery pack, characterized in that: The battery pack has a containing cavity and a first direction (X), a second direction (Y) and a third direction (Z) intersecting in pairs, and the battery pack comprises a thermal management component (2), a water nozzle (1) and a connecting pipe (3); The thermal management component (2) is arranged in the accommodating cavity along the first direction (X), and the thermal management component (2) is provided with a water outlet (22) arranged along the second direction (Y); The water nozzle (1) and the connecting pipe (3) are arranged in the accommodating cavity along the second direction (Y), and the water nozzle (1) is connected between the water outlet (22) and the connecting pipe (3); The faucet (1) has a deformation portion (13), and the deformation portion (13) can be deformed to at least adjust the size of the faucet (1) along the second direction (Y).

2. The battery pack according to claim 1, characterized in that: The deformation portion (13) comprises a plurality of protruding portions (131) and at least one recessed portion (132), the plurality of protruding portions (131) being arranged at intervals along the second direction (Y), and two adjacent protruding portions (131) being connected via the recessed portion (132); The deformation portion (13) has a first outer peripheral surface (130) with the second direction (Y) as an axial direction, and the protrusion (131) extends away from the first outer peripheral surface (130) in the radial direction.

3. The battery pack according to claim 2, characterized in that: The battery pack meets at least one of the following conditions: i) the protrusion (131) is an arc-shaped structure; ii) the recessed portion (132) is an arc-shaped structure; iii) There is an arc transition between the protruding portion (131) and the recessed portion (132).

4. The battery pack according to claim 1, characterized in that: The deformation portion (13) comprises a plurality of telescopic portions (133), and the plurality of telescopic portions (133) are arranged along the second direction (Y); The telescopic part (133) includes a first matching part (134) and a second matching part (135), the first matching part (134) and the second matching part (135) are connected to each other, and among two adjacent telescopic parts (133), the first matching part (134) of one of the telescopic parts (133) and the second matching part (135) of the other telescopic part (133) are movably connected at least in the second direction (Y).

5. The battery pack according to claim 1, characterized in that: The faucet (1) further comprises a first connecting portion (11) and a second connecting portion (12); The first connection part (11) and the second connection part (12) are respectively arranged on both sides of the deformation part (13) along the second direction (Y); the first connection part (11) is connected to the water outlet (22), and the second connection part (12) is connected to the connection pipe (3).

6. The battery pack according to claim 5, characterized in that: The rigidity of the first connecting portion (11) is greater than the rigidity of the deforming portion (13), and / or the rigidity of the second connecting portion (12) is greater than the rigidity of the deforming portion (13).

7. The battery pack according to claim 5, characterized in that: The faucet (1) further comprises a first rigid transition portion (14) and a second rigid transition portion (15), wherein the first rigid transition portion (14) and the second rigid transition portion (15) both extend along the second direction (Y); The first rigid transition portion (14) is connected between the first connection portion (11) and the deformation portion (13), the second rigid transition portion (15) is connected between the second connection portion (12) and the deformation portion (13), and the battery pack satisfies at least one of the following conditions: I) the rigidity of the first rigid transition portion (14) is greater than the rigidity of the deformation portion (13); II) the rigidity of the first rigid transition portion (14) is less than the rigidity of the first connecting portion (11); III) the rigidity of the second rigid transition portion (15) is greater than the rigidity of the deformation portion (13); IV) The rigidity of the second rigid transition portion (15) is smaller than the rigidity of the second connecting portion (12).

8. The battery pack according to claim 7, characterized in that: The first rigid transition portion (14) is provided with reinforcing ribs on its outer periphery, and / or the second rigid transition portion (15) is provided with reinforcing ribs on its outer periphery.

9. The battery pack according to claim 5, characterized in that: The water nozzle (1) further comprises a limiting portion (16); The limiting portion (16) is arranged on a side of the first connecting portion (11) close to the deformation portion (13), the limiting portion (16) cooperates with the water outlet (22) in a limiting manner along the second direction (Y), and the first connecting portion (11) is inserted into the water outlet (22).

10. The battery pack according to claim 5, characterized in that: The second connecting portion (12) has a second outer peripheral surface (120) with the second direction (Y) as an axial direction, and a groove (121) is provided on the second connecting portion (12), and the groove (121) extends from the second outer peripheral surface (120) to the axial direction of the second connecting portion (12), and a sealing member (122) is provided in the groove (121).

11. The battery pack according to claim 5, characterized in that: The first connection part (11) is welded or bonded to the water outlet (22), and the second connection part (12) is plugged into the connection pipe (3).

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