Battery module and battery pack

Abstract

The utility model provides a battery module and a battery pack, the battery module comprises a plurality of battery cells, the plurality of battery cells are superposed along a first direction to form a battery pack; the end plates are arranged in pairs, and the two end plates arranged in pairs are arranged at the two ends of the battery pack in the first direction respectively; the output pole seat is arranged on the end plate, and the output pole seat is electrically connected with the battery pack; and the insulating protective cover comprises a middle plate section and at least two connecting plate sections which can be bent and formed on the middle plate section, one connecting plate section is connected with the output pole seat, and the other connecting plate section is connected with the end plate. According to the battery module and the battery pack provided by the utility model, the problems of inconvenience in installation and poor installation stability of an insulating protective cover in the prior art can be solved.

Description

Technical Field

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

[0002] With the continuous development of new energy, electric vehicles, as a new energy vehicle, have gradually entered people's field of vision. The core of electric vehicles is the battery system, which is composed of many parts. The battery module is the core power supply module of the battery system, which is equivalent to the heart of the battery system.

[0003] The output pole of the battery module includes a high-voltage output pole and a low-voltage output pole. The low-voltage output pole is generally a connector welded to the wiring harness isolation plate; the high-voltage negative output pole is usually an exposed copper sheet, which is fixed to the output pole base by screws. The output pole needs to be protected by an insulating protective cover.

[0004] As can be seen from the above, the insulating protective cover in the prior art has the problems of inconvenient installation and poor installation stability. Utility Model Content

[0005] The main purpose of the utility model is to provide a battery module and a battery pack to solve the problems of inconvenient installation and poor installation stability of the insulating protection cover in the prior art.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a battery module is provided, the battery module includes a battery cell, a plurality of battery cells are arranged, and the plurality of battery cells are stacked along a first direction to form a battery pack; an end plate, the end plates are arranged in pairs, and the two end plates arranged in pairs are respectively arranged at the two ends of the battery pack along the first direction; an output pole seat, the output pole seat is arranged on the end plate, and the output pole seat is electrically connected to the battery pack; an insulating protective cover, the insulating protective cover includes an intermediate plate section and at least two connecting plate sections that can be bent and formed on the intermediate plate section, one of the connecting plate sections is connected to the output pole seat, and the other connecting plate section is connected to the end plate.

[0007] Furthermore, the insulating protective cover includes a bending section, and the middle plate section, the bending section and the connecting plate section are integrally formed in sequence. The thickness of the bending section is smaller than that of the middle plate section and the connecting plate section, and the bending section is easy to bend.

[0008] Furthermore, two connecting plate segments are provided, and the two connecting plate segments are bent in the same direction; and / or the two connecting plate segments are formed on two adjacent side edges of the middle plate segment.

[0009] Furthermore, a slot is provided on the end plate, wherein an insert block is provided at one end of another connecting plate section away from the middle plate section, and the insert block is plug-fitted with the slot.

[0010] Furthermore, a connecting plate segment is provided with a first clamping piece, and an output pole seat is provided with a second clamping piece, and the first clamping piece and the second clamping piece are clamped and matched.

[0011] Furthermore, a notch is provided on the connecting plate section connected to the output pole seat, and the first clamping parts are symmetrically arranged on the connecting plate section on both sides of the notch.

[0012] Furthermore, the output pole seat has a baffle extending toward the insulating protection cover, and the baffle extends into the interior of the notch.

[0013] Further, one or more insulating protection covers are provided on each end plate. When there are multiple insulating protection covers, the multiple insulating protection covers are arranged at intervals along a second direction perpendicular to the first direction.

[0014] Furthermore, the battery module also includes an inter-group connector, one end of which is connected to the output pole seat, and the other end of the inter-group connector is used to electrically connect to an adjacent battery module; and / or a strap, which is wrapped around the outer circumference of the battery pack and the end plate.

[0015] According to another aspect of the present invention, a battery pack is provided, the battery pack comprising the above-mentioned battery module.

[0016] By applying the technical solution of the utility model, the following technical effects are achieved:

[0017] 1. The insulation protection cover of the utility model is arranged on the output pole seat, and the connecting plate section of the insulation protection cover is connected with the end plate and the output pole seat, which can facilitate the installation of the insulation protection cover and increase the stability of the installation of the insulation protection cover.

[0018] 2. The connecting plate section of the insulating protective cover can be bent in different directions to form two mirror-image insulating protective covers to meet the installation requirements of the insulating protective covers at different positions. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] 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:

[0020] Figure 1 This is a schematic diagram of the overall structure of the battery module of the utility model;

[0021] Figure 2 An exploded view of the battery module of the present utility model;

[0022] Figure 3 for Figure 2 A magnified view of part A;

[0023] Figure 4 This is a schematic diagram of the structure of the insulating protective cover of the utility model;

[0024] Figure 5 It is a structural schematic diagram of the output pole seat of the utility model;

[0025] Figure 6 A schematic diagram of the installation of the insulating protective cover of the utility model;

[0026] Figure 7 for Figure 6 A magnified view of part B;

[0027] Figure 8 This is a schematic diagram of the insulating protective cover of the utility model after installation;

[0028] Fig. 9 for Figure 8 Enlarged view of part C.

[0029] The above drawings include the following reference numerals:

[0030] 1. Battery cell; 2. End plate; 21. Slot; 3. Output pole seat; 31. Second clamping piece; 32. Baffle; 4. Insulation protection cover; 41. Middle plate section; 42. Connecting plate section; 421. Insert block; 422. First clamping piece; 423. Notch; 43. Bending section; 5. Binding strap; 6. Inter-group connector. DETAILED DESCRIPTION

[0031] 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.

[0032] 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.

[0033] 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.

[0034] In order to solve the problems of inconvenient installation and poor installation stability of the insulating protection cover in the prior art, the utility model provides a battery module, which improves the installation stability of the insulating protection cover and facilitates installation by setting multiple connection structures, so as to facilitate installation of the insulating protection cover on the battery module.

[0035] Embodiment 1

[0036] A battery module, see Figures 1 to 9 The battery module includes a battery cell 1, an end plate 2, an output pole seat 3 and an insulating protective cover 4. A plurality of battery cells 1 are provided, and the plurality of battery cells 1 are stacked along a first direction to form a battery pack. The end plates 2 are arranged in pairs, and the two end plates 2 arranged in pairs are respectively arranged at the two ends of the battery pack along the first direction. The output pole seat 3 is arranged on the end plate 2, and the output pole seat 3 is electrically connected to the battery pack. The insulating protective cover 4 includes an intermediate plate segment 41 and at least two connecting plate segments 42 that can be bent and formed on the intermediate plate segment 41, wherein one connecting plate segment 42 is connected to the output pole seat 3, and the other connecting plate segment 42 is connected to the end plate 2.

[0037] Specifically, an output pole electrically connected to the output pole piece of the battery cell is provided on the output pole seat 3, and the insulating protection cover 4 is used to protect the output pole.

[0038] Furthermore, in order to increase the stability of the installation and connection of the insulating protection cover 4, one of the connecting plate sections 42 of the insulating protection cover 4 is connected to the output pole seat 3, and the other connecting plate section 42 is connected to the end plate 2. By connecting the connecting plate section 42 with the end plate 2 and the output pole seat 3, the insulating protection cover 4 is connected and fixed to two different structural members, which is beneficial to increase the stability of the installation of the insulating protection cover 4.

[0039] In this embodiment, the middle plate section 41 and two connecting plate sections 42 of the insulating protection cover 4 cooperate to form a cavity for accommodating the output stage. The insulating protection cover 4 installed on the output pole seat 3 and the end plate 2 can protect the output pole on the output pole seat 3.

[0040] The insulating protective cover 4 is made of plastic material and has a certain elasticity. When the insulating protective cover 4 needs to be replaced or disassembled, the insulating protective cover 4 can be easily deformed due to its plasticity. Compared with traditional hard materials, the plastic insulating protective cover 4 has better shock absorption and energy absorption, is not easy to be damaged or fall off, is not easy to be damaged, and can be reused many times.

[0041] Furthermore, the insulating protective cover 4 further includes a bending section 43. Specifically, the middle plate section 41, the bending section 43 and the connecting plate section 42 are integrally formed in sequence, the thickness of the bending section 43 is smaller than that of the middle plate section 41 and the connecting plate section 42, and the bending section 43 is easy to bend.

[0042] The thickness of the bending section 43 is smaller than that of the connecting plate section 42 and the middle plate section 41 . Therefore, during the bending process under force, the bending section 43 is prone to bend, thereby bending the connecting plate section 42 toward one side of the middle plate section 41 .

[0043] When the insulating protective cover 4 is produced, the insulating protective cover 4 can be produced in a flat shape, and then the bending section 43 is bent in actual use to form the shape of the insulating protective cover 4 when it is installed. The thickness of the bending section 43 is smaller than that of the middle plate section 41 and the connecting plate section, so it is convenient to bend it in actual bending. Since it is produced in a flat shape, it can save space during transportation and storage.

[0044] Furthermore, two connecting plate segments 42 are provided, and the two connecting plate segments 42 are bent in the same direction, that is, the connecting plate segments 42 are bent to the same side of the middle plate segment 41, so that the two connecting plate segments 42 cooperate with the middle plate segment 41 to form a cavity for protecting the output stage.

[0045] Furthermore, two connecting plate segments 42 are provided, and the two connecting plate segments 42 are formed on two adjacent side edges of the middle plate segment 41 .

[0046] The two connecting plate sections 42 can be bent toward the first side of the middle plate section 41 at the same time, and the two connecting plate sections 42 can also be bent toward the second side of the middle plate section 41 at the same time. The two bendings form two different insulating protective covers 4, and the connecting plate sections 42 on the two insulating protective covers 4 are arranged in a mirror image.

[0047] When two insulating protection covers 4 are arranged on the same end plate 2 along the second direction, the two insulating protection covers 4 are mirror-symmetrical. The insulating protection covers 4 of the present application can be adaptively arranged into two mirror-image bending structures through different bending directions, which can meet the requirements of installing the insulating protection covers 4 at both ends of the end plate 2.

[0048] The first direction is Figure 1 The X direction in the second direction is Figure 1 in the Y direction.

[0049] Furthermore, the end plate 2 has a slot 21 , wherein the end of the other connecting plate segment 42 facing away from the middle plate segment 41 has an insert block 421 , and the insert block 421 is plugged into and matched with the slot 21 .

[0050] The insert block 421 on the connecting plate segment 42 is inserted into the slot 21 of the end plate 2, which can limit and fix this part of the connecting plate segment 42 of the insulating protection cover 4, thereby increasing the installation stability of this part of the connecting plate segment 42, thereby increasing the installation stability of the insulating protection cover 4.

[0051] Furthermore, a first clamping member 422 is provided on a connecting plate segment 42 , and a second clamping member 31 is provided on the output pole seat 3 . The first clamping member 422 and the second clamping member 31 are clamped and matched.

[0052] Through the cooperation between the first clamping member 422 and the second clamping member 31 , the other connecting plate segment 42 can be limited and fixed, thereby increasing the installation stability of this part of the connecting plate segment 42 and thus increasing the installation stability of the insulating protection cover 4 .

[0053] One of the first clamping component 422 and the second clamping component 31 is a clamping hook, and the other of the first clamping component 422 and the second clamping component 31 is a clamping groove, and the clamping hook and the clamping groove are clamped and matched.

[0054] In this embodiment, one of the two connecting plate segments 42 is fixed by plugging, and the other of the two connecting plate segments 42 is fixed by a snap-fit ​​structure, which makes the overall installation simple and easy to operate, thereby improving the installation efficiency. In addition, the fixing does not require fasteners, which does not damage the overall appearance and is conducive to improving the aesthetics.

[0055] Furthermore, a notch 423 is formed on the connecting plate section 42 connected to the output pole seat 3 , and the first clamping parts 422 are symmetrically arranged on the connecting plate section 42 on both sides of the notch 423 .

[0056] Among them, by providing the notch 423 on the connecting plate segment 42, it is beneficial to reduce stress concentration on the connecting plate segment 42 and improve the stability of the connecting plate segment 42 in use; and when the connecting plate segment 42 is subjected to force, the notch 423 can provide an escape position for the deformation of the connecting plate segment 42 to buffer the external force.

[0057] The symmetrically arranged first clamping parts 422 are beneficial to the uniformity of force, thereby improving the stability of the connection between the connecting plate segment 42 and the output pole seat 3.

[0058] Furthermore, the output pole seat 3 has a baffle 32 extending toward the insulating protection cover 4 , and the baffle 32 extends into the inside of the notch 423 .

[0059] The baffle plate 32 can block the notch 423 , and through the cooperation of the baffle plate 32 , the insulating protection cover 4 can almost fully cover the output pole seat 3 , thereby improving the protection effect of the output pole seat 3 .

[0060] In this embodiment, one or more insulating protection covers 4 are provided on each end plate 2. When there are multiple insulating protection covers 4, the multiple insulating protection covers 4 are spaced apart in a second direction perpendicular to the first direction.

[0061] When there are multiple output pole seats 3, the corresponding insulating protective covers 4 are also provided in multiples to protect the output pole seats 3. When the output pole seats 3 are located at different positions, the bending directions of the connecting plate sections 42 of the insulating protective covers 4 may also be different to meet the installation requirements of the output pole seats 3 at different positions. For example, when two output pole seats 3 are provided, and the two output pole seats 3 are respectively provided at the two ends of the end plate 2 along the second direction, the bending directions of the connecting plate sections 42 of the two insulating protective covers 4 corresponding to the output pole seats 3 are different to present a mirror-symmetrical structure.

[0062] In this embodiment, the battery module further includes an inter-module connector 6, one end of the inter-module connector 6 is connected to the output pole seat 3, and the other end of the inter-module connector 6 is used to be electrically connected to the output pole seat of an adjacent battery module.

[0063] Two adjacent battery modules are electrically connected via the inter-module connector 6, so as to facilitate the integrated output of multiple battery modules.

[0064] Furthermore, the battery module also includes a binding strap 5 , which is wound around the outer circumference of the battery pack and the end plate 2 .

[0065] The battery module can be additionally fixed by the binding strap 5, thereby increasing the stability of the overall structure of the battery module.

[0066] Embodiment 2

[0067] A battery pack includes the battery module in the first embodiment.

[0068] From the above description, it can be seen that the above embodiments of the utility model achieve the following technical effects:

[0069] 1. The insulating protective cover 4 of the utility model is arranged on the output pole seat 3, and the connecting plate section 42 of the insulating protective cover 4 is connected with the end plate 2 and the output pole seat 3, which can facilitate the installation of the insulating protective cover 4 and increase the stability of the installation of the insulating protective cover 4.

[0070] 2. The connecting plate section 42 of the insulating protection cover 4 can be bent in different directions, thereby forming two mirror-image insulating protection covers 4 to meet the installation requirements of the insulating protection cover 4 at different positions.

[0071] 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.

[0072] 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.

[0073] 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.

[0074] 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 module, characterized in that: include: A battery cell (1), wherein a plurality of the battery cells (1) are provided, and the plurality of battery cells (1) are stacked along a first direction to form a battery pack; End plates (2), the end plates (2) being arranged in pairs, and the two end plates (2) arranged in pairs being respectively arranged at two ends of the battery pack along the first direction; An output pole seat (3), the output pole seat (3) being arranged on the end plate (2), the output pole seat (3) being electrically connected to the battery pack; An insulating protective cover (4), the insulating protective cover (4) comprising an intermediate plate section (41) and at least two connecting plate sections (42) that can be bent and formed on the intermediate plate section (41), wherein one of the connecting plate sections (42) is connected to the output pole seat (3), and the other connecting plate section (42) is connected to the end plate (2).

2. The battery module according to claim 1, characterized in that: The insulating protective cover (4) further comprises a bending section (43); the middle plate section (41), the bending section (43) and the connecting plate section (42) are integrally formed in sequence; the thickness of the bending section (43) is smaller than the thickness of the middle plate section (41) and the connecting plate section (42); and the bending section (43) is easy to bend.

3. The battery module according to claim 1, characterized in that: The connecting plate segments (42) are provided with two. The two connecting plate sections (42) are bent in the same direction; and / or The two connecting plate sections (42) are formed on two adjacent side edges of the middle plate section (41).

4. The battery module according to claim 1, characterized in that: The end plate (2) has a slot (21), wherein the other connecting plate segment (42) has an insert block (421) at one end facing away from the middle plate segment (41), and the insert block (421) is plug-fitted with the slot (21).

5. The battery module according to claim 1, characterized in that: One of the connecting plate sections (42) has a first clamping piece (422), and the output pole seat (3) has a second clamping piece (31), and the first clamping piece (422) and the second clamping piece (31) are clamped and matched.

6. The battery module according to claim 5, characterized in that: The connecting plate section (42) connected to the output pole seat (3) is provided with a notch (423), and the first clamping member (422) is symmetrically arranged on the connecting plate section (42) on both sides of the notch (423).

7. The battery module according to claim 6, characterized in that: The output pole seat (3) has a baffle (32) extending toward the insulating protection cover (4), and the baffle (32) extends into the interior of the notch (423).

8. The battery module according to claim 1, characterized in that: One or more insulating protection covers (4) are provided on each end plate (2); when a plurality of insulating protection covers (4) are provided, the plurality of insulating protection covers (4) are spaced apart in a second direction perpendicular to the first direction.

9. The battery module according to claim 1, characterized in that: The battery module also includes: An inter-group connecting member (6), one end of the inter-group connecting member (6) being connected to the output pole seat (3), and the other end of the inter-group connecting member (6) being used for being electrically connected to an adjacent battery module; and / or A binding belt (5), wherein the binding belt (5) is wound around the outer peripheral surface of the battery pack and the end plate (2).

10. A battery pack, characterized in that A battery module comprising any one of claims 1 to 9.

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