Module wiring device and battery module

Abstract

The utility model discloses a module wiring device, which relates to the technical field of energy storage modules, and is characterized in that a female head base is fixedly arranged on a conducting bar between battery cells of the energy storage module; the female head base is provided with a cavity for accommodating the male head terminal; during connection, the front end of the male head terminal is inserted from the first end of the cavity of the female head base, the bending part is extruded by the female head base, so that the elastic cantilever is elastically deformed, and when the bending part extends out of the second end, the bending part rebounds and is matched with the second end of the cavity to prevent the male head terminal from moving backwards. The conductive connection between the female head base and the male head terminal can be realized only by elastic deformation of the elastic cantilever, so that the connection between the acquisition wire harness and the module can be realized conveniently and quickly.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of energy storage module, further relates to a module wiring device and battery module. BACKGROUND

[0002] The energy storage module contains a plurality of battery cells, the aluminum bars are used for current collection between the battery cells of the energy storage module, and the voltage and temperature of the battery cells are collected through the collection wire harness, the structure of the collection wire harness on the market is generally fixed by the OT terminal, the screw and the bolt hole of the aluminum bar on the module, the aluminum bar needs to be pressed and riveted, and the screw needs to be fixed during assembly, and there is a large amount of work in actual processing and assembly.

[0003] The existing collection wire harness and aluminum bar structure need to be fixed by using a screw, the structure is complex, the screw needs to be disassembled by using an electric screwdriver for maintenance, the process is complicated, and the screw is easy to lose.

[0004] For those skilled in the art, how to conveniently and quickly realize the connection between the collection wire harness and the module is a technical problem to be solved at present. UTILITY MODEL CONTENTS

[0005] The core of the utility model lies in providing a module wiring device, the mutual connection between the male terminal and the female base is realized through the elastic deformation of the elastic cantilever, and the specific scheme is as follows:

[0006] A module wiring device, comprising a male terminal and a female base, the female base is fixedly arranged on the conductive bar between the battery cells of the energy storage module, the female base is provided with a cavity for accommodating the male terminal;

[0007] The male terminal is provided with at least two oppositely distributed elastic cantilevers, the front end of the elastic cantilever is provided with a bending part, and the bending part protrudes outward from the male terminal; the rear end of the male terminal is connected with a conductive cable;

[0008] The front end of the male terminal can be inserted from the first end of the cavity of the female base, and the bending part is used for cooperating with the second end of the cavity to block the backward displacement of the male terminal.

[0009] Optionally, the rear end of the male terminal is provided with a limiting block, the limiting block protrudes outward from the male terminal, and the limiting block is used for contacting the first end of the cavity of the female base to limit the maximum extension size of the forward displacement of the male terminal.

[0010] Optionally, the limiting block is formed by bending the rear end edge of the left and right side walls of the male terminal.

[0011] Optionally, the elastic cantilever is provided with three, which are located above and on the left and right sides of the male terminal.

[0012] Optionally, the elastic suspension arms on the left and right sides of the male terminal are respectively provided with outward protruding portions, which protrude outward, so that the distance between the two outward protruding portions is greater than the distance between the left and right sides of the inner cavity of the female base.

[0013] Optionally, the outer shape of the male terminal and the inner cavity of the female base are respectively columnar or tapering.

[0014] Optionally, the bending portion and the front end of the elastic suspension arm form an acute angle.

[0015] Optionally, the front end of the elastic suspension arm is flush with the front end of the male terminal.

[0016] Optionally, the rear end of the male terminal is provided with a clamp for crimping a cable.

[0017] And / or, the female base is a conductive row formed by stamping.

[0018] And / or, the conductive row is provided with an arched region in the middle.

[0019] The utility model also provides a battery module, including electric core and above-mentioned any one module wiring device.

[0020] The utility model provides a module wiring device, and the female base is fixedly arranged on the conductive row between the energy storage modules and the electric core. The female base is provided with a chamber for accommodating the male terminal. When connected, the front end of the male terminal is inserted into the first end of the chamber of the female base. The bending portion is extruded by the female base, so that the elastic suspension arm is elastically deformed. When the bending portion extends from the second end, it rebounds and cooperates with the second end of the chamber to block the rear displacement of the male terminal. This scheme does not need to rely on other connecting components. Only the elastic deformation of the elastic suspension arm can realize the conductive connection between the female base and the male terminal, so as to conveniently and quickly realize the connection between the collection wire harness and the module. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are only some embodiments of the utility model. For those skilled in the art, other drawings can also be obtained according to these drawings without creating creative labor.

[0022] Figure 1 It is the isometric view of the module wiring device of the utility model;

[0023] Figure 2 It is the schematic view of the male terminal;

[0024] Figure 3 Top view of the male terminal;

[0025] Figure 4 Side view of the male terminal;

[0026] Figure 5 Axonometric view of the female base and the conductive row;

[0027] Figure 6 Front view of the female base and the conductive row;

[0028] Figure 7 Axonometric view of the battery module of the utility model;

[0029] Figure 8 Figure 7 Partial enlarged view of part A;

[0030] Figure 9 Figure 7 Partial enlarged view of part B;

[0031] Figure 10 Top view of the battery module of the utility model;

[0032] Figure 11 Illustration of the included angle of the elastic cantilever and the bent part;

[0033] Figure 12 Illustration of the release fixture.

[0034] The drawings include:

[0035] Male terminal 1, elastic cantilever 11, outer convex part 111, bent part 12, limiting block 13, hoop 14, female base 2, conductive row 3, arched area 31, cable 4, electric core 5, extraction tool 6, extraction notch 61. DETAILED DESCRIPTION

[0036] In order to make the technical personnel in the art better understand the technical scheme of the utility model, the module wiring device and the battery module of the utility model will be introduced and explained in detail below in combination with the drawings and specific embodiments.

[0037] The utility model provides a kind of module wiring device, in combination Figure 1 As shown in the drawings, it includes male terminal 1 and female base 2, female base 2 is fixedly arranged on the conductive row 3 between energy storage module electric core, and the conductive row 3 provides support positioning to female base 2, and male terminal 1, female base 2 and the conductive row 3 are all made of conductive material, for example, aluminum or copper and its alloy, and female base 2 and the conductive row 3 are in conductive contact;When male terminal 1 contacts female base 2, male terminal 1 and female base 2 form conductive contact.

[0038] In combination​​Figure 5 As shown, the female base 2 is provided with a chamber for accommodating the male terminal 1, the chamber can adopt a through channel at both ends, when the male terminal 1 extends into the chamber of the female base 2, the female base 2 forms at least three surrounding surfaces for the male terminal 1; the male terminal 1 can be linearly translated relative to the female base 2. When the male terminal 1 adopts a cylindrical shape, the male terminal 1 can be relatively rotated within a certain range relative to the female base 2; while the male terminal 1 adopts a non-cylindrical shape, the male terminal 1 can only be linearly translated relative to the female base 2, and cannot be rotated relative to the female base 2.

[0039] The male terminal 1 is provided with two oppositely distributed elastic cantilever arms 11, that is, the number of elastic cantilever arms 11 should be at least two, the number of elastic cantilever arms 11 can be more than two, and there are at least two oppositely distributed elastic cantilever arms 11, the oppositely distributed elastic cantilever arms 11 are subjected to forces in opposite directions, so that the male terminal 1 is balanced. If an even number of elastic cantilever arms 11 are provided, the elastic cantilever arms 11 are preferably opposite to each other in pairs, and if an odd number of elastic cantilever arms 11 are provided, there can be individual elastic cantilever arms 11.

[0040] The male terminal 1 can adopt a shell structure, which is hollow inside to reduce material usage, but the utility model does not exclude the scheme that the male terminal 1 is made of solid material. In combination with Figure 2 、 Figure 3 、 Figure 4 As shown, the male terminal 1 adopts a hollow shell structure, and the elastic cantilever arm 11 is part of the shell of the male terminal 1. Notches are formed on the left and right sides (X-axis direction) of the elastic cantilever arm 11, the notches extend along the Y-axis direction, so that the left and right sides of the elastic cantilever arm 11 have gaps with the main body part of the male terminal 1, the male terminal 1 is connected to the main body part of the male terminal 1 only at one end (rear end) in the Y-axis direction, and the front end of the elastic cantilever arm 11 is suspended, so that the elastic cantilever arm 11 can be elastically deformed when subjected to external pressure, and automatically returns to the original position when the external force is removed.

[0041] The front end of the elastic cantilever arm 11 is provided with a bent part 12, the width of the bent part 12 is equal to or slightly smaller than the width of the elastic cantilever arm 11, and the bent part 12 can be one whole or several narrow tooth-like parts. The bent part 12 protrudes outward from the male terminal 1, that is, the bent part 12 is higher than the outer surface of the male terminal 1. The size of the position where the male terminal 1 is provided with the bent part 12 is greater than the cross-sectional area of the chamber of the female base 2, and the bent part 12 will be compressed by the inner surface of the chamber of the female base 2, and will rebound when the bent part 12 is no longer compressed by the inner surface of the chamber of the female base 2. The bent part 12 is hooked and matched with the second end of the chamber of the female base 2, and blocks the rear movement of the male terminal 1.

[0042] In the assembly, the front end of the male terminal 1 is inserted from the first end of the cavity of the female base 2, the bending part 12 is extruded to retract inward until the bending part 12 protrudes from the second end, and the bending part 12 is used to form a hooking fit with the second end of the cavity to block the rear displacement of the male terminal 1. The rear end of the male terminal 1 is electrically connected with the cable 4, and when the male terminal 1 is installed to the female base 2, the cable 4 is electrically connected with the female base 2, and further electrically connected with the conductive row 3 and the battery cell, and the voltage and temperature of the battery cell are collected through the cable 4.

[0043] The modular wiring device has the advantages of simple structure, locking through the elastic cantilever 11 and the bending part 12, direct installation without electric screwdrivers, convenient installation, and convenient and fast connection between the collection wire harness and the module.

[0044] On the basis of any of the above technical solutions, the rear end of the male terminal 1 is provided with a limiting block 13, the limiting block 13 protrudes outward from the male terminal 1, the protruding direction of the limiting block 13 is basically consistent with the protruding direction of the bending part 12, and the limiting block 13 is used to contact the first end of the cavity of the female base 2 to limit the maximum extension size of the forward displacement of the male terminal 1. The size of the outward protrusion of the limiting block 13 is greater than the size of the first end of the cavity of the female base 2, the limiting block 13 contacts the first end of the cavity of the female base 2, and thus the maximum size of the male terminal 1 extending into the female base 2 is limited.

[0045] The limiting block 13 is provided at least one, and two limiting blocks 13 are relatively provided at the rear end of the male terminal 1 in order to stably limit. Specifically, the limiting block 13 of the utility model is formed by bending the rear end edge of the left and right side walls of the male terminal 1, and the limiting block 13 is formed by sheet metal stamping, which is convenient for processing and manufacturing.

[0046] In combination with Figure 2 As shown in the figure, the elastic cantilever 11 of the utility model is provided with three, which are respectively located above and on the left and right sides of the male terminal 1, the width of the entire male terminal 1 along the X-axis direction is greater than the height along the Z-axis direction, and the width (Z-axis) W2 of the elastic cantilever 11 on the left and right sides is less than the width (X-axis) W1 of the elastic cantilever 11 above.

[0047] In combination with Figure 3 As shown in the figure, the elastic cantilever 11 on the left and right sides of the male terminal 1 is respectively provided with an outward protruding part 111, the outward protruding part 111 protrudes outward from the surface of the male terminal 1, that is Figure 3 When the middle distance B is greater than the distance A, the distance between the two outward protruding parts 111 is greater than the distance between the left and right sides of the inner cavity of the female base 2, and the outward protruding part 111 more closely contacts the inner surface of the cavity of the female base 2 relative to other positions of the male terminal 1, the outward protruding part 111 forms an interference fit with the cavity of the female base 2, and the male terminal 1 is prevented from shaking in the female base 2.

[0048] The outer convex part 111 can be formed by the middle to front end part of the elastic suspension arm 11, or can be formed as an arc convex part protruding from the middle part of the elastic suspension arm 11, and these setting forms shall be included in the protection scope of the utility model.

[0049] On the basis of any of the above technical solutions and the mutual combinations thereof, the outer shape of the male terminal 1 and the inner cavity of the female base 2 are respectively columnar or taper-shaped with gradually reduced cross-sectional dimensions, that is, the male terminal 1 can adopt a columnar or taper shape, and the female base 2 can adopt a columnar or taper shape. The shapes of the male terminal 1 and the female base 2 correspondingly match, when the male terminal 1 and the female base 2 adopt a columnar shape, the outer surface cross section of the male terminal 1 is slightly smaller than the inner cavity surface cross section of the female base 2. The cross section of the taper-shaped structure gradually changes in the Y-axis direction. For the columnar structure, a limiting block 13 needs to be arranged at the end to achieve blocking; for the taper-shaped structure, the cross section of the male terminal 1 gradually reduces from the rear end to the front end, and the limiting block 13 can not be arranged, and the blocking and limiting can be achieved through the taper surface.

[0050] On the basis of any of the above technical solutions and the mutual combinations thereof, the bending part 12 and the front end of the elastic suspension arm 11 form an acute angle, as shown in Figure 11 , wherein the included angle θ is the included angle between the bending part 12 and the elastic suspension arm 11, the bending part 12 bends towards the oblique rear, and when the front side inclined surface of the bending part 12 contacts the female base 2, the elastic suspension arm 11 is pressed to retract inward.

[0051] As shown in Figure 2 , the front end of the elastic suspension arm 11 is flush with the front end of the male terminal 1, and the front end of the entire male terminal 1 is a flush edge, avoiding the formation of a sharp sharp corner. Of course, the elastic suspension arm 11 can also be longer or shorter than other positions of the front end of the male terminal 1.

[0052] As shown in Figure 3 , Figure 4 , the rear end of the male terminal 1 is provided with a hoop 14, the hoop 14 is crimped with the cable 4, the hoop 14 is formed by a metal plate arranged at the rear end of the male terminal 1, so that the cable 4 is fixed to the male terminal 1. The sheet used to make the male terminal 1 deforms after being pressed, forming the hoop 14 to fix the cable 4 to achieve conductive connection.

[0053] As shown in Figure 5 , Figure 6 , the female base 2 is stamped and formed from the conductive strip 3, the female base 2 includes left and right side walls and a top surface, and three surfaces surround the male terminal 1. The female base 2 is integrally formed from a part of the conductive strip 3, simplifying processing and manufacturing.

[0054] As shown in Figure 5 , Figure 6As shown, the middle of the conductive row 3 is provided with an arched area 31, and the left and right sides of the arched area 31 are flat areas, and the two flat areas are connected to the electrodes of the two battery cells respectively, and the arched area 31 can make the conductive row 3 form a left-right direction expansion and contraction deformation, and when the battery cell expands and deforms during use, the arched area 31 can be elongated to avoid stress concentration.

[0055] In combination Figure 12 As shown, the extraction tool 6 for extracting the male terminal 1 is shown, and the extraction tool 6 is a flat plate structure, and an extraction notch 61 is arranged on one edge, and the extraction notch 61 can be clamped to the bent part 12 of the male terminal 1, and the elastic cantilever 11 can be retracted inwardly, so as to move backward to extract the male terminal 1.

[0056] The utility model also provides a battery module, including battery cell 5 and above-mentioned module wiring device, in combination Figure 7 、 Figure 10 As shown, the structure of the battery module is shown, and the battery module is composed of a plurality of battery cells 5. Figure 7 For Figure 6 When the local enlarged view of the middle area A is shown, Figure 8 For Figure 6 The local enlarged view of the middle area B is shown, and one female base 2 can be arranged on each conductive row 3 for connecting the male terminal 1. Each male terminal 1 leads out a cable 4, so as to detect the state of each battery cell.

[0057] The module wiring device of the utility model removes screws, and does not need to be directly installed by an electric wrench, so that installation is convenient. The conductive row 3 and the female base 2 are formed by stamping using a stamping compound die, and do not need to be crimped and riveted nuts, so that the unit price of the part saves the riveting cost of the original structure. The elastic cantilever 11 is provided with an outer convex part 111, so that the male terminal 1 and the female base 2 form an interference fit, and the connection is reliable.

[0058] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the utility model. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to these embodiments shown in the text, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A module wiring device, characterized in that, It includes a male terminal (1) and a female base (2), wherein the female base (2) is fixedly disposed on the conductive bus (3) between the cells of the energy storage module; the female base (2) is provided with a cavity for accommodating the male terminal (1); The male terminal (1) is provided with at least two oppositely distributed elastic cantilever (11), the front end of the elastic cantilever (11) is provided with a bending part (12), the bending part (12) protrudes outward from the male terminal (1); the rear end of the male terminal (1) is connected to a conductive cable (4). The front end of the male terminal (1) can be inserted into the first end of the cavity of the female base (2), and the bent part (12) is used to cooperate with the second end of the cavity to prevent the male terminal (1) from moving backward.

2. The module wiring device according to claim 1, characterized in that, A limiting block (13) is provided at the rear end of the male terminal (1). The limiting block (13) protrudes outward from the male terminal (1). The limiting block (13) is used to contact the first end of the cavity of the female base (2) to limit the maximum extension dimension of the male terminal (1) forward displacement.

3. The module wiring device according to claim 2, characterized in that, The limiting block (13) is formed by bending the rear edge of the left and right side walls of the male terminal (1).

4. The module wiring device according to claim 1, characterized in that, Three elastic cantilever arms (11) are provided, located above and on the left and right sides of the male terminal (1), respectively.

5. The module wiring device according to claim 4, characterized in that, The elastic cantilever (11) on the left and right sides of the male terminal (1) is provided with an outward protrusion (111). The outward protrusion (111) protrudes outward so that the distance between the two outward protrusions (111) is greater than the distance between the left and right sides of the inner cavity of the female base (2).

6. The module wiring device according to any one of claims 1 to 5, characterized in that, The male terminal (1) has a cylindrical shape and the female base (2) has a tapered shape with a gradually decreasing cross-sectional size.

7. The module wiring device according to any one of claims 1 to 5, characterized in that, The bent portion (12) forms an acute angle with the front end of the elastic cantilever (11).

8. The module wiring device according to claim 7, characterized in that, The front end of the elastic cantilever (11) is flush with the front end of the male terminal (1).

9. The module wiring device according to claim 7, characterized in that, The male terminal (1) is provided with a clamp (14) at the rear end for crimping the cable (4). And / or, the female head base (2) is formed by stamping the conductive bus (3); And / or, an arched area (31) is provided in the middle of the conductive bus (3).

10. A battery module, characterized in that, Includes battery cell (5) and module wiring device as described in any one of claims 1 to 9.

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