Battery pack and battery pack

Abstract

The utility model provides a battery pack and a battery pack. The battery pack comprises a side part located at the end of the battery pack, a low-voltage interface assembly and a fixing buckle, the side part is provided with an installation concave part, the low-voltage interface assembly comprises a low-voltage connector used for being electrically connected with a battery and a connecting plate connected with the low-voltage connector, the connecting plate is provided with a connecting concave part, and the fixing buckle is arranged between the side part and the connecting plate. The fixing buckle is provided with a first buckle structure and a second buckle structure, the first buckle structure and the second buckle structure are located on the two opposite sides of the fixing buckle, the first buckle structure is matched with the installation concave part in a clamped mode, and the second buckle structure is matched with the connection concave part in a clamped mode. According to the utility model, the problem of poor connection reliability of the connector is solved.

Description

Technical Field

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

[0002] In the integrated components of energy storage batteries, low-voltage connectors are usually located at the end of the battery integration, and are used to transmit the control signals and monitoring data of the battery to the outside. However, in a few cases, such as vibration, falling, shaking, etc., the low-voltage connector at the end of the battery integration lacks a stable and reliable connection and fixing means, and is prone to displacement and detachment, thereby affecting signal and data transmission and affecting the normal operation of the battery. In summary, the existing measures lack a safe and reliable connector fixing method. Utility Model Content

[0003] The main purpose of the utility model is to provide a battery pack and a battery package to solve the problem of poor connection reliability of connectors in the prior art.

[0004] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a battery pack is provided, including a side component located at the end of the battery pack, a low-voltage interface assembly, and a fixing clip, the side component having a mounting recess, the low-voltage interface assembly comprising a low-voltage connector for electrically connecting to the battery and a connecting plate connected to the low-voltage connector, the connecting plate having a connecting recess, the fixing clip being arranged between the side component and the connecting plate, the fixing clip having a first clip structure and a second clip structure, the first clip structure and the second clip structure being located on opposite sides of the fixing clip, the first clip structure being snap-fitted with the mounting recess, and the second clip structure being snap-fitted with the connecting recess.

[0005] Furthermore, the first buckle structure includes a plurality of mounting buckles, and the mounting buckles are arranged in groups, the mounting buckles are located on the same side of the fixed buckles, and the mounting buckles in the same group are arranged along a first direction, and the mounting buckles in different groups are arranged along a second direction, and the first direction and the second direction form an angle.

[0006] Furthermore, the side surface of the mounting buckle has a protrusion, and the protrusions of two mounting buckles in the same group protrude in directions away from each other.

[0007] Furthermore, the mounting recess is a mounting hole, and the mounting holes are arranged corresponding to the number of groups of mounting buckles, and the mounting buckles of the same group are arranged in the same mounting hole.

[0008] Furthermore, the mounting recess is a mounting hole, the mounting hole is tapered, and along the direction in which the first buckle structure extends into the mounting hole, the size of the tapered opening gradually decreases.

[0009] Furthermore, the connecting recess is located on the side of the connecting plate parallel to the length direction of the battery pack, and connecting recesses are provided on opposite sides of the connecting plate, and the second snap-fit ​​structure is snap-fitted with the connecting recesses on both sides at the same time.

[0010] Furthermore, the side component is an end plate, the top surface of the end plate has a mounting recess, and the low-pressure interface assembly is mounted on the top surface of the end plate by means of a fixing buckle.

[0011] Furthermore, the side component is a mounting beam, the mounting beam has a longitudinal side surface, the longitudinal side surface has a mounting recess, and the low-voltage interface assembly is mounted on the longitudinal side surface of the mounting beam by a fixing buckle.

[0012] Furthermore, the low-voltage interface assembly also includes a conductive belt, and the low-voltage connector is electrically connected to the battery through the conductive belt. The conductive belt includes a first section and a second section that are bent and connected in sequence. The first section is located on the upper surface of the battery, and the second section is bent and located on the longitudinal side. The low-voltage connector is located at the end of the second section.

[0013] According to another aspect of the present invention, a battery pack is provided, comprising the above-mentioned battery pack.

[0014] By applying the technical solution of the utility model, the low-voltage interface assembly is fixed to the side component by setting a fixing buckle, thereby improving the connection reliability of the low-voltage interface assembly. Specifically, on the one hand, the first buckle structure is engaged with the installation recess, thereby fixing the fixing buckle to the side component, and on the other hand, the second buckle structure is engaged with the connection recess, thereby fixing the low-voltage interface assembly to the fixing buckle. In this way, the low-voltage interface assembly is connected to the side component through the fixing buckle, thereby achieving an overall reliable connection and fixation. This fixing method is reliable and convenient for disassembly and assembly, and is compatible with the installation methods of the interface being placed flat and sideways, thereby avoiding the low-voltage connection assembly from being offset and falling off, causing the signal and data transmission of the battery pack to be affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary 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 drawings:

[0016] Figure 1 A schematic structural diagram of the first embodiment of the present utility model is shown;

[0017] Figure 2 Shows Figure 1 A partial enlarged view of

[0018] Figure 3 Shows Figure 1 Exploded diagram of

[0019] Figure 4A schematic diagram of the structure of the fixing buckle of the first embodiment is shown;

[0020] Figure 5 A schematic structural diagram of a low-voltage interface assembly of Embodiment 1 is shown;

[0021] Figure 6 A schematic structural diagram of an end plate of the first embodiment is shown;

[0022] Figure 7 A cross-sectional view of a battery pack of Embodiment 1 is shown;

[0023] Figure 8 Shows Figure 7 A partial enlarged view of

[0024] Fig. 9 A partial cross-sectional view of the battery pack of the first embodiment at another angle is shown;

[0025] Fig.10 A schematic diagram of the structure of a battery pack according to the first embodiment is shown;

[0026] Fig.11 A schematic diagram showing the structure of a battery pack of Embodiment 2 is shown;

[0027] Fig.12 Shows Fig.11 A partial enlarged view of

[0028] Fig.13 A schematic diagram showing the structure of the mounting beam of the second embodiment is shown;

[0029] Fig.14 A cross-sectional view of a battery pack of Embodiment 2 is shown;

[0030] Fig.15 A schematic structural diagram of a battery pack according to the second embodiment is shown.

[0031] The above drawings include the following reference numerals:

[0032] 10. Side component; 11. Installation recess; 20. Low-voltage interface assembly; 21. Low-voltage connector; 22. Connecting plate; 221. Connecting recess; 23. Conductive tape; 231. First section; 232. Second section; 30. Fixing buckle; 31. First buckle structure; 311. Installation buckle; 312. Protrusion; 32. Second buckle structure. DETAILED DESCRIPTION

[0033] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0034] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0035] In the present invention, unless otherwise specified, the directional words used, such as "up, down, top, bottom", usually refer to the directions shown in the drawings, or to the components themselves in the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directional words are not used to limit the present invention.

[0036] In order to solve the problem of poor connection reliability of connectors in the prior art, the utility model provides a battery pack and a battery package.

[0037] Embodiment 1

[0038] like Figures 1 to 9 A battery pack is shown, comprising a side component 10 located at the end of the battery pack, a low-voltage interface assembly 20, and a fixing buckle 30, wherein the side component 10 has a mounting recess 11, the low-voltage interface assembly 20 comprises a low-voltage connector 21 for electrically connecting to the battery and a connecting plate 22 connected to the low-voltage connector 21, the connecting plate 22 has a connecting recess 221, the fixing buckle 30 is arranged between the side component 10 and the connecting plate 22, the fixing buckle 30 has a first buckle structure 31 and a second buckle structure 32, the first buckle structure 31 and the second buckle structure 32 are located on opposite sides of the fixing buckle 30, the first buckle structure 31 is snap-fitted with the mounting recess 11, and the second buckle structure 32 is snap-fitted with the connecting recess 221.

[0039] In this embodiment, the low-voltage interface assembly 20 is fixed to the side component 10 by providing a fixing buckle 30, thereby improving the connection reliability of the low-voltage interface assembly 20. Specifically, on the one hand, the first buckle structure 31 is engaged with the mounting recess 11, thereby fixing the fixing buckle 30 to the side component 10. On the other hand, the second buckle structure 32 is engaged with the connecting recess 221, thereby fixing the low-voltage interface assembly 20 to the fixing buckle 30. In this way, the low-voltage interface assembly 20 is connected to the side component 10 through the fixing buckle 30, thereby achieving an overall reliable connection and fixation. This fixing method is reliable and convenient for disassembly and assembly, and is compatible with the installation methods of the interface being placed flat and sideways, thereby preventing the low-voltage connection assembly from being offset and falling off, thereby affecting the signal and data transmission of the battery pack.

[0040] like Figure 4As shown, in the present embodiment, the first buckle structure 31 includes a plurality of mounting buckles 311, and the mounting buckles 311 are arranged in groups, the mounting buckles 311 are located on the same side of the fixed buckle 30, and the mounting buckles 311 in the same group are arranged along the first direction, and the mounting buckles 311 in different groups are arranged along the second direction, and the first direction and the second direction form an angle. Specifically, in the present embodiment, each group of mounting buckles 311 is set to two, and every two mounting buckles 311 cooperate with the same mounting recess 11, and the arrangement of the mounting buckles 311 in different groups is perpendicular to the arrangement direction of the mounting buckles 311 in the same group, so that the two groups of mounting buckles 311 form a matrix arrangement, which cooperates with the two mounting recesses 11 respectively, so as to fix the fixed buckle 30 to the side component 10. Of course, the multiple groups of mounting buckles 311 can be arranged in a straight line or in a curve, as long as they can match the arrangement of the mounting recesses 11. It should be noted that the first direction refers to Figure 4 The left and right arrows on the lower left side indicate the direction, and the second direction refers to Figure 4 The arrow from lower left to upper right in the lower right corner indicates the direction.

[0041] In this embodiment, the side of the mounting buckle 311 has a protrusion 312, and the protrusion 312 is hook-shaped. One side of the protrusion 312 that first extends into the mounting recess 11 is an inclined surface, and the inclined surface can guide the installation of the mounting buckle 311, so that the protrusion 312 can gradually deform when extending into the mounting recess 11, and at the same time increase the buckling area, thereby reducing the risk of the fixing buckle 30 breaking. The protrusions 312 of the two mounting buckles 311 in the same group protrude in a direction away from each other, so that the mounting buckle 311 extends into the mounting recess 11, and the protrusion 312 extends from the other side of the mounting recess 11, and the protrusion 312 faces a direction away from the center of the mounting recess 11 to prevent the mounting buckle 311 from escaping from the mounting recess 11, thereby improving the reliability of the connection. Preferably, the corners of the protrusion 312 are rounded to reduce installation friction and stress concentration, and provide sufficient elastic deformation capacity for the mounting buckle 311 when installing, thereby facilitating the installation and placement of the fixing buckle 30.

[0042] It should be noted that the fixing buckle 30 is an insulating part, which is processed into an injection-molded part by injection molding, thereby improving the working safety of the low-voltage interface assembly 20.

[0043] like Figure 6As shown, in this embodiment, the mounting recess 11 is a mounting hole, and the mounting holes are arranged corresponding to the number of groups of mounting buckles 311, and the mounting buckles 311 of the same group are arranged in the same mounting hole. In this embodiment, each group of mounting buckles 311 is provided with two, so that the two mounting buckles 311 of each group extend into the same mounting hole, and the protrusions 312 of the mounting buckles 311 described above are separated from each other, so that the protrusions 312 can limit the mounting buckles 311 in at least two directions, so as to prevent the mounting buckles 311 from coming out of the mounting hole and affecting the function of the low-voltage interface assembly 20. Of course, each group of mounting buckles 311 can also be provided with more, and it is sufficient to ensure that the mounting buckles 311 of the same group are matched with the same mounting recess 11. For example, three mounting buckles 311 can be provided as a group, and the three mounting buckles 311 are arranged in a ring, and the protrusions 312 are away from each other, that is, the protrusions 312 are all facing away from the center of the mounting hole, and extend into the same mounting recess 11, so that the mounting buckles 311 and the side member 10 can be reliably connected. Alternatively, the mounting buckles 311 of the same group can be matched with different mounting holes respectively.

[0044] like Figure 8 As shown, in this embodiment, the mounting hole is tapered, and the size of the tapered opening gradually decreases along the direction in which the first snap structure 31 extends into the mounting hole. When the first snap structure 31 extends into the mounting hole, it first contacts the larger part of the tapered opening, and the tapered side plays a guiding role. By squeezing, the mounting snap 311 is deformed and moves in the direction of approaching each other, so that the mounting snap 311 gradually extends into the mounting hole along the tapered side. When the protrusion 312 extends from the other end of the mounting hole, the mounting snap 311 recovers its deformation, and the protrusion 312 is clamped on the edge of the mounting hole, so that the first snap structure 31 is firmly connected to the side member 10. Preferably, the mounting hole is set as a circular hole, and a fillet is set at the edge of the mounting hole close to the second snap structure 32, so that the protrusion 312 can smoothly extend into the mounting hole, and the protrusion 312 can be clamped at any position of the edge of the hole of the mounting hole away from the second snap structure without falling out. Of course, the mounting hole can also be set as a polygonal hole, and the protrusion 312 can be clamped on the edge of the polygon.

[0045] like Figure 4 , Figure 5 , Figure 7As shown, in this embodiment, the connection recess 221 is located on the side of the connection plate 22 parallel to the length direction of the battery pack, and the connection recess 221 is provided on both opposite sides of the connection plate 22, and the second buckle structure 32 is simultaneously engaged with the connection recess 221 on both sides, so that the second buckle structure 32 fixes the fixing buckle 30 and the low-voltage interface assembly 20 together, and the limiting connection plate 22 is prevented from falling off. Specifically, the connection recesses 221 on both sides of the connection plate 22 are engaged in the mounting grooves of the second buckle structure 32, and the longitudinal side surfaces of the connection recess 221 abut against the second buckle structure 32, thereby limiting the movement of the connection plate 22 along the length direction and width direction of the battery pack, and a limiting protrusion is provided at one end of the second buckle structure 32 away from the first buckle structure 31, and the limiting protrusion protrudes toward the center of the second buckle structure 32, and the limiting protrusion abuts against the upper surface of the connection recess 221, thereby preventing the connection plate 22 from falling off along the height direction of the battery pack. It should be noted that the battery pack of this embodiment is placed horizontally, and the length direction of the battery pack refers to the arrangement direction of the batteries, that is, Figure 1 In the direction from the lower left to the upper right of the middle upper side, the height direction of the battery pack refers to the height direction of the battery, that is, the direction perpendicular to the connecting plate 22, that is, Figure 1 The direction indicated by the up and down arrows on the right side of the figure indicates that the width of the battery pack is perpendicular to its length and height, that is, Figure 1 The upper left to lower right arrow on the lower left side indicates the direction.

[0046] like Figure 1 , Figure 2 , Figure 3 , Fig. 9 As shown, in this embodiment, the side component 10 is an end plate, and the top surface of the end plate has a mounting recess 11, and the low-voltage interface assembly 20 is mounted on the top surface of the end plate through a fixing buckle 30. Specifically, the top surface of the end plate is a horizontal plane, which is perpendicular to the height direction of the battery pack, and two mounting holes are set in accordance with the arrangement of the mounting buckles 311 of different groups of the first buckle structure 31, and the aperture of the mounting hole matches the distance between the mounting buckles 311 of the same group, so that the first buckle structure 31 extends vertically into the mounting hole from above the mounting hole and snaps with it, thereby fixing the end plate and the mounting buckle 311, thereby fixing the low-voltage interface assembly 20 to the end plate. Similarly, the connecting plate 22 extends downward from the top of the fixing buckle 30 to between the second buckle structures 32 on both sides, and when snapped into place, the second buckle structure 32 is located in the connecting recess 221 to achieve the connection between the low-voltage interface assembly 20 and the fixing buckle 30, and the overall effect of fixing the position of the low-voltage interface assembly 20 is achieved.

[0047] like Fig.10As shown, this embodiment also provides a battery pack, including the above-mentioned battery pack, which can store electrical energy and release energy when needed. After the battery pack is integrated and placed, it can be widely used in various occasions, such as power grid frequency modulation, photovoltaic energy storage, electric vehicle charging stations, home energy storage systems, etc. Fig.10 As shown, the battery pack includes a battery pack cover, a battery pack, a battery pack lower box, etc. The battery pack mainly stores and releases electric energy. The battery pack cover and the battery pack lower box serve as structural supports to protect the battery pack from external impacts, water, dust, etc.

[0048] Embodiment 2

[0049] Different from the first embodiment, the side member 10 of this embodiment is a mounting beam, which has a longitudinal side surface. The longitudinal side surface of the mounting beam is arranged in a different direction from the top surface of the end plate, and the longitudinal side surface of the mounting beam is arranged perpendicular to the length direction of the battery pack, that is, the longitudinal side surface of the mounting beam is arranged perpendicular to the top surface of the end plate. The mounting beam can be arranged at the side surface in the length direction of the battery pack, or it can be arranged separately. When it is arranged separately, different battery packs can be connected, so that multiple battery packs are connected into a whole.

[0050] like Figures 11 to 13 As shown, the longitudinal side has a mounting recess 11, and the low-voltage interface assembly 20 is mounted on the longitudinal side of the mounting beam through a fixing buckle 30. In this way, the first buckle structure 31 extends into the mounting hole from the side of the longitudinal side away from the battery along the length direction of the battery pack, thereby fixing the mounting beam and the fixing buckle 30 together, and also fixing the low-voltage interface assembly 20 to the mounting beam.

[0051] like Fig.14 As shown, in this embodiment, the low-voltage interface assembly 20 also includes a conductive belt 23, and the low-voltage connector 21 is electrically connected to the battery through the conductive belt 23. The conductive belt 23 includes a first section 231 and a second section 232 that are bent and connected in sequence. The first section 231 extends along the length direction of the battery pack. In this way, the first section 231 is simultaneously located on the upper surface of multiple batteries in the battery pack to ensure that the conductive belt 23 can achieve the signal and data transmission function of the battery. The second section 232 of this embodiment is bent and located at the longitudinal side, and is arranged vertically with the first section 231. The low-voltage connector 21 is located at the end of the second section 232. In this way, the low-voltage connector 21 is guided to the longitudinal side through the bending connection of the second section 232, so that the low-voltage connector 21 is fixed to the longitudinal direction of the battery pack, and the side placement requirement of the low-voltage connector 21 is achieved. Of course, according to actual conditions, the second section 232 can also be bent in other directions to facilitate the fixation of the low-voltage connector 21.

[0052] like Fig.15 As shown, this embodiment also provides a battery pack, including the above-mentioned battery pack.

[0053] It should be noted that, the multiple in the above embodiments refers to at least two.

[0054] From the above description, it can be seen that the above embodiments of the utility model achieve the following technical effects:

[0055] 1. The low-voltage interface assembly is fixed to the side component by setting a fixing buckle, thereby solving the problem of poor connection reliability of the connector in the prior art;

[0056] 2. The low-voltage interface assembly is connected to the side component through a fixing buckle, thus achieving overall reliable connection and fixation;

[0057] 3. This fixing method is reliable and easy to disassemble and assemble. It is suitable for horizontal and side installation of the interface, avoiding the low-voltage connection components from shifting and falling off, which may affect the signal and data transmission of the battery pack.

[0058] Obviously, the embodiments described above are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0059] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0060] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0061] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A battery pack, characterized in that: include: A side member (10) located at an end of the battery pack, the side member (10) having a mounting recess (11); A low-voltage interface assembly (20), the low-voltage interface assembly (20) comprising a low-voltage connector (21) for electrically connecting to a battery and a connecting plate (22) connected to the low-voltage connector (21), the connecting plate (22) having a connecting recess (221); A fixing buckle (30), the fixing buckle (30) is arranged between the side part (10) and the connecting plate (22), the fixing buckle (30) has a first buckle structure (31) and a second buckle structure (32), the first buckle structure (31) and the second buckle structure (32) are located on two opposite sides of the fixing buckle (30), the first buckle structure (31) is snap-fitted with the mounting recess (11), and the second buckle structure (32) is snap-fitted with the connecting recess (221).

2. The battery pack according to claim 1, characterized in that: The first buckle structure (31) comprises a plurality of mounting buckles (311), and the mounting buckles (311) are arranged in groups, the mounting buckles (311) are located on the same side of the fixing buckle (30), and the mounting buckles (311) in the same group are arranged along a first direction, and the mounting buckles (311) in different groups are arranged along a second direction, and the first direction and the second direction form an angle.

3. The battery pack according to claim 2, characterized in that: The side surface of the mounting buckle (311) has a protrusion (312), and the protrusions (312) of the two mounting buckles (311) in the same group protrude in directions away from each other.

4. The battery pack according to claim 2, characterized in that: The mounting recess (11) is a mounting hole, and the mounting holes are arranged corresponding to the number of groups of the mounting buckles (311), and the mounting buckles (311) of the same group are arranged in the same mounting hole.

5. The battery pack according to claim 1, characterized in that: The mounting recess (11) is a mounting hole, the mounting hole is tapered, and along the direction in which the first buckle structure (31) extends into the mounting hole, the size of the tapered opening gradually decreases.

6. The battery pack according to claim 1, characterized in that: The connecting recess (221) is located on a side of the connecting plate (22) parallel to the length direction of the battery pack, and the connecting recess (221) is provided on two opposite sides of the connecting plate (22), and the second snap-fit ​​structure (32) is snap-fitted with the connecting recess (221) on both sides at the same time.

7. The battery pack according to claim 1, characterized in that: The side component (10) is an end plate, the top surface of the end plate has the mounting recess (11), and the low-pressure interface assembly (20) is mounted on the top surface of the end plate via the fixing buckle (30).

8. The battery pack according to claim 1, characterized in that: The side component (10) is a mounting beam, the mounting beam has a longitudinal side surface, the longitudinal side surface has the mounting recess (11), and the low-pressure interface assembly (20) is mounted on the longitudinal side surface of the mounting beam via the fixing buckle (30).

9. The battery pack according to claim 8, characterized in that: The low-voltage interface assembly (20) further comprises a conductive tape (23), the low-voltage connector (21) being electrically connected to the battery via the conductive tape (23), the conductive tape (23) comprising a first section (231) and a second section (232) which are bent in sequence and connected, the first section (231) being located at the upper surface of the battery, the second section (232) being bent and located at the longitudinal side surface, and the low-voltage connector (21) being located at the end of the second section (232).

10. A battery pack, characterized in that: The battery pack comprises the battery pack according to any one of claims 1 to 9.

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