Support, battery management system and battery pack

Abstract

The utility model relates to battery technical field provides a support, battery management system and battery package. The support includes frame body, support piece and limiting piece. The frame body has side wall. The side wall constructs and has the outlet. The outlet is configured to wear the wire harness. The support piece is connected in the side wall. The limiting piece is connected to the support piece. The limiting piece is spaced apart from the side wall. The support piece, limiting piece and side wall enclose and form the limiting space. The limiting space is configured to embed the wire harness. Therefore, the wire harness is fixed without through the auxiliary fixing structure such as the ribbon, and the wire harness wiring efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, specifically to a bracket, a battery management system, and a battery pack. Background Technology

[0002] In related technologies, battery boxes are equipped with a BMS (Battery Management System) to monitor battery operating parameters. The BMS transmits these parameters externally via wiring harnesses for monitoring and display at a terminal. The BMS circuit board typically uses wiring harnesses for data transmission. However, the wiring harnesses are usually not secured inside the battery box, making them prone to slipping into the adhesive grooves connecting the box cover and body, affecting the box's airtightness. To overcome this problem, cable ties are typically used to secure the wiring harnesses. However, cable ties increase production steps and costs. Utility Model Content

[0003] The embodiments of this utility model provide a bracket, a battery management system, and a battery pack, which can achieve rapid fixing of the wiring harness with high fixing reliability, thereby at least partially solving the above-mentioned technical problems.

[0004] In a first aspect, embodiments of the present invention provide a support, comprising:

[0005] The frame has side walls with cable outlets configured for threading wire harnesses.

[0006] Support member, connected to the side wall;

[0007] A limiting member is connected to the support member. The limiting member is spaced apart from the side wall. The support member, the limiting member, and the side wall enclose a limiting space, which is configured to embed a wire harness.

[0008] In one embodiment, the wire harness is interference-fitted into the limiting space.

[0009] In one embodiment, the limiting members are spaced at least two apart, and at least some of the limiting members have different heights.

[0010] In one embodiment, the height of the limiting member is defined along a first direction, wherein the height of the limiting member near the outlet is higher than the top position of the outlet.

[0011] In one embodiment, the height of the limiting member is defined along a first direction, the wire harness includes at least two sub-wires arranged side by side along a third direction, the height of the limiting member near the outlet is higher than the top position of any of the sub-wires, wherein the first direction is set at an angle to the third direction.

[0012] In one embodiment, the outer diameter of the wire harness is D1, and the thickness of the limiting member is defined along the second direction. The thickness of the limiting member is T1, satisfying that T1 < D1, wherein the first direction and the second direction are set at an angle.

[0013] In one embodiment, the width of the limiting member is defined along a third direction, and the width of the limiting member is W1, satisfying: 3 mm ≤ W1 ≤ 5 mm, wherein the first direction is set at an angle to the third direction, and the second direction is set at an angle to the third direction.

[0014] In one embodiment, the support further includes:

[0015] A stop member is connected to the side wall. The wire harness passes through the outlet and bends once in a third direction. The stop member is located on the side of the outlet away from the first bend direction.

[0016] In one embodiment, the height of the stop member is defined along a first direction, and the height of the stop member is H2, satisfying: 1 mm ≤ H2 ≤ 2 mm.

[0017] In one embodiment, along the first direction, the bottom surface of the stop member is flush with the top surface of the limiting member, or the bottom surface of the stop member is higher than the top surface of the limiting member.

[0018] In one embodiment, the outer diameter of the wire harness (6) is D1, and the thickness of the stop member is defined along the second direction. The thickness of the stop member is T2, satisfying: D1≤T2, wherein the first direction and the second direction are set at an angle.

[0019] In one embodiment, the width of the stop member is defined along a third direction, and the width of the stop member is W2, satisfying: 2 mm ≤ W2 ≤ 5 mm, wherein the first direction is set at an angle to the third direction, and the second direction is set at an angle to the third direction.

[0020] In one embodiment, the outer diameter of the wire harness is D1, and the distance between the side of the stop member near the outlet and the axis of the wire harness at the outlet is D5, satisfying: 1 / 3D1≤D5≤1 / 2D1.

[0021] In one embodiment, the support further includes:

[0022] A bending member is connected to the side wall, the wire harness exits from the outlet and bends once in a first direction and extends toward the bending member, wherein the bending member is configured to abut against the wire harness and cause the wire harness to bend twice along the bending member.

[0023] In one embodiment, the height of the bent member is defined along a first direction, and the height of the bent member is H3, satisfying: 1 mm ≤ H3 ≤ 2 mm.

[0024] In one embodiment, the outer diameter of the wire harness is D1, and the distance between the bottom surface of the bent member and the top surface of the support member is D6, satisfying: D1≤D6.

[0025] In one embodiment, the outer diameter of the wire harness is D1, and the thickness of the bent member is defined along the second direction. The thickness of the bent member is T3, satisfying: D1≤T3, wherein the first direction and the second direction are set at an angle.

[0026] In one embodiment, the width of the bent member is defined along a third direction, and the width of the bent member is W3, satisfying: 2 mm ≤ W3 ≤ 5 mm, wherein the first direction is set at an angle to the third direction, and the second direction is set at an angle to the third direction.

[0027] Secondly, embodiments of the present invention provide a battery management system, comprising:

[0028] As mentioned above, the support structure;

[0029] The circuit board is mounted on the bracket;

[0030] The wire harness has a first connector and a second connector connected to its two ends, respectively. The first connector is electrically connected to the circuit board, and the second connector is configured as an electrical connection mating connector.

[0031] The wire harness is threaded through the outlet and sandwiched between the limiting member and the side wall.

[0032] In one embodiment, the wire harness includes a wire harness body and a flexible layer covering the wire harness body, the outer diameter of the flexible layer is D1, and the distance between the limiting member and the side wall is D2, satisfying: D2≤D1.

[0033] In one embodiment, the following condition is satisfied: 3.3 mm ≤ D2 ≤ 4 mm.

[0034] In one embodiment, the wire harness has an adhesive position connected to the second connector, and the bracket further includes a bending member connected to the side wall, wherein, along a third direction, the distance between the bending member and the adhesive position is D3, satisfying: D3≥4D1.

[0035] In one embodiment, along the first direction, the second connector is spaced apart from the limiting member, and the distance between the bottom surface of the second connector and the top surface of the limiting member is D4, satisfying: 3 / 4D1≤D4≤D1.

[0036] Thirdly, embodiments of the present invention provide a battery pack, including the bracket as described above, or the battery management system as described above.

[0037] The beneficial effects of the embodiments of this utility model are as follows:

[0038] In this embodiment of the invention, a cable outlet is provided on the side wall of the frame, allowing the cable harness to pass through the outlet and exit the frame. The cable harness can run along the support member and be embedded in the limiting space formed by the support member, the limiting member, and the side wall, thereby achieving reliable fixation of the cable harness. Thus, there is no need to use auxiliary fixing structures such as cable ties to fix the cable harness, improving the efficiency of cable routing. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 This is a schematic diagram of the structure of the bracket provided in an embodiment of this utility model;

[0041] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0042] Figure 3 This is a schematic diagram of the battery management system provided in an embodiment of the present invention;

[0043] Figure 4 yes Figure 3 The main view.

[0044] Explanation of reference numerals in the attached figures:

[0045] 1. Frame; 11. Side wall; 111. Cable outlet;

[0046] 2. Support components;

[0047] 3. Limiting components;

[0048] 4. Stop components;

[0049] 5. Bending parts;

[0050] 6. Wire harness; 61. First connector; 62. Second connector; 63. Flexible layer. Detailed Implementation

[0051] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of the present utility model and are not intended to limit the present utility model. In the present utility model, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, specifically the drawing directions in the accompanying drawings; while "inner" and "outer" refer to the outline of the device.

[0052] like Figures 1 to 2 As shown, this application embodiment provides a bracket. The bracket includes a frame 1, a support member 2, and a limiting member 3. The frame 1 has a side wall 11. A cable outlet 111 is constructed on the side wall 11. The cable outlet 111 is configured to pass through a wire harness 6. The support member 2 is connected to the side wall 11. The limiting member 3 is connected to the support member 2. The limiting member 3 is spaced apart from the side wall 11. The support member 2, the limiting member 3, and the side wall 11 enclose a limiting space. The limiting space is configured to embed the wire harness 6.

[0053] In this embodiment, a cable outlet 111 is provided on the side wall 11 of the frame 1, allowing the cable harness 6 to exit through the outlet 111. The cable harness 6 can run along the support member 2 and be embedded in the limiting space formed by the support member 2, the limiting member 3, and the side wall 11, thereby achieving reliable fixation of the cable harness 6. Thus, there is no need to use auxiliary fixing structures such as cable ties to fix the cable harness 6, improving the wiring efficiency of the cable harness 6.

[0054] This embodiment of the application achieves reliable fixation of the wiring harness 6 by placing the limiting member 3 between the wiring harness 6 and the side wall 11. This prevents the wiring harness 6 from slipping onto the connection interface between the battery box body and the box cover, thus affecting the sealing performance of the battery box. It also ensures the consistency of the wiring harness 6 in the battery box, optimizes the wiring harness 6 installation process, and reduces the cost of fixing the wiring harness 6.

[0055] In some embodiments, the bracket is a plastic bracket. The frame body 1, side wall 11, support member 2, and limiting member 3 are integrally injection molded. Thus, the structure of the support member 2 and limiting member 3 for fixing the wire harness 6 can be directly injection molded during the bracket production stage, thereby shortening the installation time of the wire harness 6 and enabling the wire harness 6 to be quickly assembled into the frame body 1 to achieve the position fixation of the wire harness 6.

[0056] In some embodiments, the sidewall 11 surrounds the periphery of the frame 1. The cable outlet 111 is located on the sidewall 11 at a position corresponding to the support member 2. The cable outlet 111 can be a square opening, a circular opening, etc. The opening of the cable outlet 111 is larger than the outer diameter of the wire harness 6, allowing the wire harness 6 to pass through the cable outlet 111. This embodiment does not limit the shape or size of the cable outlet 111.

[0057] In some embodiments, the support member 2 is used to support the wire harness 6 to prevent it from falling off. Reinforcing ribs may be provided on the upper surface of the support member 2 to structurally strengthen it. The reinforcing ribs may be spaced at least two at intervals. For example, two reinforcing ribs may be provided, located on opposite sides of the cable outlet 111.

[0058] In some embodiments, the limiting member 3 extends a certain distance in the height direction so that the limiting member 3 can cooperate with the side wall 11 to clamp the wire harness 6, thereby limiting and fixing the wire harness 6 to the support member 2, ensuring the reliable fixation of the wire harness 6.

[0059] In some embodiments, the wire harness 6 is interference-fitted into the limiting space.

[0060] It is understandable that the wire harness 6 is interference-fitted into the limiting space. Both the wire harness 6 and the limiting member 3 can deform to a certain extent so that the wire harness 6 can be clamped under a certain force after being embedded in the limiting space, thus ensuring the reliable fixation of the wire harness 6.

[0061] like Figure 2 As shown, in some embodiments, the limiting members 3 are spaced at least two apart. At least some of the limiting members 3 have different heights.

[0062] It is understandable that by setting at least two limiting members 3 to restrict the position of the wire harness 6, the fixation of the wire harness 6 is made more reliable. Based on the fact that at least some of the limiting members 3 have different heights, limiting members 3 of different heights can be set in different areas, so that the limiting members 3 can give full play to their functions and avoid the waste of raw materials caused by the height redundancy of the limiting members 3.

[0063] At least two spaced limiting members 3 can cooperate with the side wall 11 to form at least two clamping positions, so that the wire harness 6 has multiple clamping points, thereby improving the reliability of the wire harness 6 fixation.

[0064] In some embodiments, at least two limiting members 3 are spaced apart along a third direction. The spacing between any two adjacent limiting members 3 is the same. Alternatively, the spacing between any two adjacent limiting members 3 is different.

[0065] In some embodiments, four limiting members 3 are spaced apart along a third direction. Among them, the limiting member 3 closest to the outlet 111 has the largest height, and the two limiting members 3 furthest from the outlet 111 have the smallest height and are the same height.

[0066] In some embodiments, the limiting member 3 is configured as a rectangular sheet structure. Thus, when the wire harness 6 is interference-fitted between the limiting member 3 and the side wall 11, the limiting member 3 can deform to a certain extent.

[0067] Please continue reading. Figure 2 In some embodiments, the height of the limiting member 3 is defined along a first direction. Among them, the height of the limiting member 3 closest to the outlet 111 is the largest.

[0068] Understandably, the wire harness 6 needs to be bent after passing through the outlet 111, and there is a certain height difference between the outlet 111 and the support member 2 for easy wiring. Therefore, the height of the limiting member 3 near the outlet 111 is the largest, to ensure that the limiting member 3 can reliably clamp the wire harness 6 and achieve reliable fixation of the wire harness 6.

[0069] In some embodiments, the height of the limiting member 3 is defined along a first direction. Specifically, the height of the limiting member 3 near the outlet 111 is higher than the top position of the outlet 111.

[0070] Understandably, the height of the limiting member 3 near the outlet 111 is higher than the top of the outlet 111 to ensure that the wire harness 6 will not fall off the limiting member 3 after it passes through the outlet 111, thus ensuring the reliable fixation of the wire harness 6.

[0071] In some embodiments, the height of the limiting member 3 is defined along a first direction. The wiring harness 6 includes at least two sub-wires arranged side-by-side along a third direction. The height of the limiting member 3 near the outlet 111 is higher than the top position of any sub-wire. The first direction is angled to the third direction.

[0072] Understandably, the height of the limiting member 3 near the outlet 111 is higher than the top of any sub-line to ensure that the harness 6 will not fall off from the limiting member 3 after passing through the outlet 111, thus ensuring the reliable fixation of the harness 6.

[0073] In some embodiments, the outer diameter of the wire harness 6 is D1. The thickness of the limiting member 3 is defined along the second direction. The thickness of the limiting member 3 is T1, satisfying: T1 < D1. The first direction and the second direction are set at an angle.

[0074] It is understandable that by making the thickness T1 of the limiting member 3 smaller than the outer diameter D1 of the wire harness 6, the limiting space formed between the inner side of the limiting member 3 and the outer side of the side wall 11 has sufficient width to accommodate the wire harness 6. And interference fit installation of the wire harness 6 within the limiting space can be achieved.

[0075] It should be noted that the distance between the outer side of the limiting member 3 and the outer side of the side wall 11 can be equal to the diameter D1 of the wire harness 6.

[0076] In some embodiments, the following condition is satisfied: 1 mm ≤ T1 ≤ 2 mm.

[0077] Understandably, the thickness T1 of the limiting member 3 is set within the range of 1 mm to 2 mm to ensure that the limiting member 3 has sufficient strength and to prevent local defects caused by injection molding shrinkage. Specifically, if the thickness T1 of the limiting member 3 is less than 1 mm, the limiting member 3 will be insufficiently strong. Since the limiting member 3 and the wire harness 6 have an interference fit, the wire harness 6 will be squeezed by the limiting member 3 and the side wall 11. If the limiting member 3 is not strong enough, it will cause the limiting member 3 to break, making it impossible to reliably fix the wire harness 6 to the support member 2. If the thickness T1 of the limiting member 3 is greater than 2 mm, the limiting member 3 may experience injection molding shrinkage after injection molding, resulting in local defects in the molded limiting member 3 that affect its strength and appearance.

[0078] For example, the thickness T1 of the limiting member 3 can be set to 1 mm, 1.5 mm, 2 mm, or any value between the two.

[0079] In some embodiments, the width of the limiting member 3 is defined along a third direction. The width of the limiting member 3 is W1, satisfying: 3 mm ≤ W1 ≤ 5 mm. The first direction is angled to the third direction, and the second direction is also angled to the third direction.

[0080] Understandably, the width W1 of the limiting member 3 is set within the range of 3 mm to 5 mm to ensure that the limiting member 3 has sufficient strength and to prevent local defects caused by injection molding shrinkage. Specifically, if the width W1 of the limiting member 3 is less than 3 mm, the limiting member 3 will be insufficiently strong. Since the limiting member 3 and the wire harness 6 have an interference fit, the wire harness 6 will be squeezed by the limiting member 3 and the side wall 11. If the limiting member 3 is not strong enough, it will break, making it impossible to reliably fix the wire harness 6 to the support member 2. If the width W1 of the limiting member 3 is greater than 5 mm, the limiting member 3 may shrink after injection molding, resulting in local defects in the molded limiting member 3 that affect its strength and appearance. At the same time, a width W1 greater than 5 mm will also make it more difficult to assemble the wire harness 6 between the limiting member 3 and the side wall 11, which is inconvenient for production line assembly.

[0081] For example, the width W1 of the limiting member 3 can be set to 3 mm, 4 mm, 5 mm, or any value between the two.

[0082] Please continue reading. Figure 2 In some embodiments, the bracket further includes a stop 4. The stop 4 is connected to the side wall 11. The wiring harness 6 exits from the outlet 111 and bends once in a third direction. The stop 4 is located on the side of the outlet 111 away from the direction of the first bend.

[0083] Understandably, after the wire harness 6 exits the frame 1 through the outlet 111, it will bend once in the direction of extension of the support member 2. The stop member 4 is located on the side of the outlet 111 away from the direction of the first bend, thereby limiting and stopping the wire harness 6 to prevent it from moving away from the bend side and ensuring that the wire harness 6 does not fall off.

[0084] In some embodiments, the stop 4 is integrally formed on the side wall 11. For example, the stop 4 is integrally injection molded on the side wall 11.

[0085] In some embodiments, the stop 4 is T-shaped, including a stop portion and a reinforcing portion located at the lower end of the stop portion. This ensures that the stop 4 has good structural strength.

[0086] In some embodiments, the height of the stop 4 is defined along a first direction. The height of the stop 4 is H2, satisfying: 1 mm ≤ H2 ≤ 2 mm.

[0087] Understandably, the height H2 of the stop 4 is set within the range of 1 mm to 2 mm to ensure that the stop 4 has sufficient strength and to prevent local defects caused by injection molding shrinkage. Specifically, if the height H2 of the stop 4 is less than 1 mm, the stop 4 will be insufficiently strong. When the wire harness 6 compresses the stop 4, if the stop 4 is not strong enough, it will break, making it impossible to reliably fix the wire harness 6 to the support 2. If the height H2 of the stop 4 is greater than 2 mm, the stop 4 may experience injection molding shrinkage after molding, resulting in local defects in the molded stop 4 that affect its strength and appearance.

[0088] For example, the height H2 of the stop 4 can be set to 1 mm, 1.5 mm, 2 mm, or any value between the two.

[0089] In some embodiments, along the first direction, the bottom surface of the stop 4 is flush with the top surface of the limiter 3. Alternatively, the bottom surface of the stop 4 is higher than the top surface of the limiter 3.

[0090] Understandably, making the bottom surface of the stop 4 flush with the top surface of the limiter 3, or making the bottom surface of the stop 4 higher than the top surface of the limiter 3, would facilitate the installation and bending of the wire harness 6. If the bottom surface of the stop 4 is lower than the top surface of the limiter 3, the bending area of ​​the wire harness 6 after it passes through the outlet 111 is smaller, making it difficult to install the wire harness 6, increasing the installation difficulty and reducing the installation efficiency.

[0091] In some embodiments, the outer diameter of the wire harness 6 is D1. The thickness of the stop member 4 is defined along the second direction. The thickness of the stop member 4 is T2, satisfying: D1≤T2. The first direction and the second direction are set at an angle.

[0092] It is understandable that the thickness of the stop 4 is greater than or equal to the outer diameter D1 of the wire harness 6, in order to prevent the wire harness 6 from falling off the stop 4 and to ensure that the stop 4 can reliably stop the wire harness 6.

[0093] In some embodiments, the thickness of the stop member 4 is defined along the second direction. The thickness of the stop member 4 is T2, satisfying: 4.2 mm ≤ T2 ≤ 5.3 mm. The first direction and the second direction are angled together.

[0094] Understandably, the thickness T2 of the stop 4 is set within the range of 4.2 mm to 5.3 mm to ensure sufficient strength and prevent local defects caused by injection molding shrinkage. Specifically, if the thickness T2 of the stop 4 is less than 4.2 mm, the stop 4 will lack sufficient strength. When the wire harness 6 compresses the stop 4, insufficient strength will cause the stop 4 to break, preventing the wire harness 6 from being reliably fixed to the support 2. If the thickness T2 of the stop 4 is greater than 5.3 mm, injection molding shrinkage may occur, resulting in local defects in the molded stop 4 that affect its strength and appearance. Furthermore, a thickness T2 greater than 5.3 mm will also affect the layout of the wire harness 6 and interfere with the installation of other structures.

[0095] It should be noted that the outer diameter of the flexible layer 63 covering the wire harness 6 is usually set to 4 mm, so that the thickness T2 of the stop member 4 is set in the range of 4.2 mm to 5.3 mm. This ensures that the stop member 4 can stop the wire harness 6 on the side of the stop member 4 near the outlet 111, preventing the wire harness 6 from falling off from the side of the stop member 4.

[0096] For example, the thickness T2 of the stop 4 can be set to 4.2 mm, 4.8 mm, 5.3 mm, or any value between the two.

[0097] In some embodiments, the width of the stop member 4 is defined along a third direction. The width of the stop member 4 is W2, satisfying: 2 mm ≤ W2 ≤ 5 mm. The first direction is angled to the third direction, and the second direction is also angled to the third direction.

[0098] Understandably, the width W2 of the stop 4 is set within the range of 2 mm to 5 mm to ensure sufficient strength and prevent local defects caused by injection molding shrinkage. Specifically, if the width W2 of the stop 4 is less than 2 mm, the stop 4 will lack sufficient strength. When the wire harness 6 compresses the stop 4, insufficient strength will cause the stop 4 to break, preventing the wire harness 6 from being reliably fixed to the support 2. If the width W2 of the stop 4 is greater than 5 mm, injection molding may cause shrinkage, resulting in local defects in the molded stop 4 that affect its strength and appearance. Furthermore, a width W2 greater than 5 mm will also affect the layout of the wire harness 6 and interfere with the installation of other structures.

[0099] For example, the width W2 of the stop 4 can be set to 3 mm, 4 mm, 5 mm, or any value between the two.

[0100] In some embodiments, the first direction is set at an acute angle to the second direction, and / or the first direction is set at an acute angle to a third direction, and / or the first direction is set at an obtuse angle to a third direction.

[0101] In some embodiments, the first direction is set at an obtuse angle to the second direction, and / or the first direction is set at an obtuse angle to a third direction, and / or the first direction is set at an obtuse angle to a third direction.

[0102] In some embodiments, the first direction, the second direction, and the third direction are perpendicular to each other.

[0103] In some embodiments, the outer diameter of the wire harness 6 is D1. The distance between the side of the stop member 4 near the outlet 111 and the axis of the wire harness 6 at the outlet 111 is D5, satisfying: 1 / 3D1≤D5≤1 / 2D1.

[0104] Understandably, based on the principle that 1 / 3D1≤D5≤1 / 2D1, when the wire harness 6 passes through the outlet 111, the stop 4 can form an interference fit or fit against the wire harness 6 to ensure the reliable fixation of the wire harness 6 and prevent excessive squeezing force between the wire harness 6 and the stop 4 from causing damage to the stop 4.

[0105] In some embodiments, when the harness 6 includes at least two sub-wires arranged side by side along a third direction, the axis of the harness 6 is the centerline of the at least two sub-wires.

[0106] Please continue reading. Figure 2In some embodiments, the bracket further includes a bending member 5. The bending member 5 is connected to the side wall 11. The wiring harness 6 exits from the outlet 111 and bends once in a first direction and extends toward the bending member 5. The bending member 5 is configured to abut against the wiring harness 6 and cause the wiring harness 6 to bend twice along the bending member 5.

[0107] Understandably, after the wire harness 6 exits from the outlet 111 and extends a certain length along the support member 2, it bends upward at the position of the bending member 5, thereby connecting to the second connector 62 located above. The bending member 5 is used to bear the force when the wire harness 6 bends, ensuring that the wire harness 6 can be bent a second time at this position.

[0108] In some embodiments, the bent element 5 is integrally formed on the side wall 11. For example, the bent element 5 is integrally injection molded on the side wall 11.

[0109] In some embodiments, the bending member 5 and the stop member 4 are disposed at the same height position on the side wall 11. Alternatively, the bending member 5 and the stop member 4 are disposed at different height positions on the side wall 11.

[0110] In some embodiments, the height of the bent member 5 is defined along a first direction. The height of the bent member 5 is H3, satisfying: 1 mm ≤ H3 ≤ 2 mm.

[0111] Understandably, the height H3 of the bent part 5 is set within the range of 1 mm to 2 mm to ensure sufficient strength and prevent local defects caused by injection molding shrinkage. Specifically, if the height H3 of the bent part 5 is less than 1 mm, the strength of the bent part 5 is insufficient. When the wire harness 6 is bent at the bent part 5, if the strength of the bent part 5 is insufficient, it will cause the bent part 5 to break, preventing the wire harness 6 from bending along the bent part 5 and affecting the wiring. If the height H3 of the bent part 5 is greater than 2 mm, the bent part 5 may experience injection molding shrinkage after molding, resulting in local defects in the molded bent part 5 that affect its strength and appearance.

[0112] For example, the height H3 of the bent part 5 is set to 1 mm, 1.5 mm, 2 mm, or any value between the two.

[0113] In some embodiments, the outer diameter of the wire harness 6 is D1. The distance between the bottom surface of the bent member 5 and the top surface of the support member 2 is D6, satisfying: D1≤D6.

[0114] It is understandable that the distance D6 between the bottom surface of the bent part 5 and the top surface of the support 2 is greater than or equal to the outer diameter D1 of the wire harness 6, so as to ensure that the wire harness 6 can be assembled between the bent part 5 and the support 2.

[0115] In some embodiments, the outer diameter of the wire harness 6 is D1. The thickness of the bent member 5 is defined along the second direction. The thickness of the bent member 5 is T3, satisfying: D1≤T3. The first direction and the second direction are set at an angle.

[0116] It is understandable that the thickness T3 of the bending member 5 is greater than or equal to the outer diameter D1 of the wire harness 6, so as to ensure that the wire harness 6 can be bent at the position of the bending member 5 without falling off, thereby ensuring the reliable fixation of the wire harness 6.

[0117] In some embodiments, the thickness of the bent member 5 is defined along the second direction. The thickness of the bent member 5 is T3, satisfying: 4.2 mm ≤ T3 ≤ 5.3 mm. The first direction and the second direction are angled together.

[0118] Understandably, the thickness T3 of the bent component 5 is set within the range of 4.2 mm to 5.3 mm to ensure sufficient strength and prevent localized defects caused by injection molding shrinkage. Specifically, if the thickness T3 of the bent component 5 is less than 4.2 mm, its strength is insufficient. When the wire harness 6 is bent at the bent component 5, insufficient strength will cause it to break, preventing the wire harness 6 from bending along it and affecting wiring. If the thickness T3 of the bent component 5 is greater than 5.3 mm, injection molding shrinkage may occur, resulting in localized defects that affect its strength and appearance. Furthermore, a thickness T3 greater than 5.3 mm will also affect the layout of the wire harness 6 and interfere with the installation of other structures.

[0119] It should be noted that the outer diameter of the flexible layer 63 covering the wire harness 6 is usually set to 4 mm, so that the thickness T3 of the bending member 5 is set in the range of 4.2 mm to 5.3 mm, which can prevent the wire harness 6 from falling off the bending member 5.

[0120] For example, the thickness T3 of the bent part 5 is set to 4.2 mm, 4.8 mm, 5.3 mm, or any value between the two.

[0121] In some embodiments, the width of the bent member 5 is defined along a third direction. The width of the bent member 5 is W3, satisfying: 2 mm ≤ W3 ≤ 5 mm. The first direction is angled relative to the third direction, and the second direction is also angled relative to the third direction.

[0122] Understandably, the width W3 of the bent component 5 is set within the range of 2 mm to 5 mm to ensure sufficient strength and prevent localized defects caused by injection molding shrinkage. Specifically, if the width W3 of the bent component 5 is less than 2 mm, its strength is insufficient. When the wire harness 6 is bent at the bent component 5, insufficient strength will cause the bent component 5 to break, preventing the wire harness 6 from bending along it and affecting wiring. If the width W3 of the bent component 5 is greater than 5 mm, injection molding shrinkage may occur, resulting in localized defects in the molded bent component 5 that affect its strength and appearance. Furthermore, a width W3 greater than 5 mm will also affect the layout of the wire harness 6 and interfere with the installation of other structures.

[0123] For example, the width W3 of the bent part 5 can be set to 3 mm, 4 mm, 5 mm, or any value between the two.

[0124] In some embodiments, the first direction is set at an acute angle to the second direction, and / or the first direction is set at an acute angle to a third direction, and / or the first direction is set at an obtuse angle to a third direction.

[0125] In some embodiments, the first direction is set at an obtuse angle to the second direction, and / or the first direction is set at an obtuse angle to a third direction, and / or the first direction is set at an obtuse angle to a third direction.

[0126] In some embodiments, the first direction, the second direction, and the third direction are perpendicular to each other.

[0127] like Figure 3 and Figure 4 As shown in the embodiments, this application also provides a battery management system. The battery management system includes a circuit board, a wiring harness 6, and a bracket as described in the previous embodiments. The circuit board is mounted on the bracket. A first connector 61 and a second connector 62 are respectively connected to both ends of the wiring harness 6. The first connector 61 is electrically connected to the circuit board. The second connector 62 is configured as an electrical connection mating connector. The wiring harness 6 passes through the outlet 111 and is clamped between the limiting member 3 and the side wall 11.

[0128] In this embodiment, a cable outlet 111 is provided on the side wall 11 of the frame 1, allowing the cable harness 6 to exit through the outlet 111. The cable harness 6 can run along the support member 2 and be embedded in the limiting space formed by the support member 2, the limiting member 3, and the side wall 11, thereby achieving reliable fixation of the cable harness 6. Thus, there is no need to use auxiliary fixing structures such as cable ties to fix the cable harness 6, improving the wiring efficiency of the cable harness 6.

[0129] It should be noted that the circuit board is connected to components to enable the battery management system to monitor the temperature, current, and voltage of individual battery cells. The circuit board transmits the monitored data to the terminal via the first connector 61, wiring harness 6, and second connector 62, allowing for real-time monitoring and / or real-time display on the terminal. The terminal may include an onboard computer, etc.

[0130] One end of the wire harness 6 is connected to the circuit board through the first connector 61 inside the bracket. The other end of the wire harness 6 passes out from the outlet 111, is routed along the support member 2, and is clamped between the limiting member 3 and the side wall 11. Then, it is bent by the bending member 5 so that the second connector 62 is located above the support member 2.

[0131] In some embodiments, the wire harness 6 includes a wire harness body and a flexible layer 63 covering the wire harness body. The outer diameter of the flexible layer 63 is D1. The distance between the limiting member 3 and the sidewall 11 is D2, satisfying: D2≤D1.

[0132] It is understandable that by ensuring that the distance D2 between the limiting member 3 and the side wall 11 is less than or equal to the outer diameter D1 of the flexible layer 63, it can be ensured that the wire harness 6 can be clamped between the limiting member 3 and the side wall 11, thus ensuring the reliable fixation of the wire harness 6.

[0133] In some embodiments, the distance D2 between the limiting member 3 and the side wall 11 is equal to the outer diameter D1 of the flexible layer 63, so the wire harness 6 can be just snapped between the limiting member 3 and the side wall 11.

[0134] In some embodiments, if the distance D2 between the limiting member 3 and the side wall 11 is less than the outer diameter D1 of the flexible layer 63, then the wire harness 6 can form an interference fit between the limiting member 3 and the side wall 11 to ensure reliable fixation of the wire harness 6.

[0135] It should be noted that, based on the interference fit formed between the wire harness 6 and the limiting member 3 and the side wall 11, when the wire harness 6 is sandwiched between the limiting member 3 and the side wall 11, the flexible layer 63 outside the wire harness 6 can deform to a certain extent, and the limiting member 3 can also deform to a certain extent. For example, the flexible layer 63 is dented after being squeezed by the limiting member 3 and the side wall 11, and the limiting member 3 tilts and deforms outward after being squeezed by the wire harness 6 and the flexible layer 63.

[0136] In some embodiments, the following condition is satisfied: 3.3 mm ≤ D2 ≤ 4 mm.

[0137] Understandably, the outer diameter D1 of the flexible layer 63 is typically set to 4 mm. The distance D2 between the limiting member 3 and the sidewall 11 is set in the range of 3.3 mm to 4 mm to allow for a certain interference fit during the assembly of the wire harness 6, thereby improving the consistency of the assembly of the wire harness 6.

[0138] If the distance D2 between the limiting component 3 and the side wall 11 is less than 3.3 mm, the interference fit during the assembly of the wire harness 6 will be large, making the assembly of the wire harness 6 more difficult, reducing assembly efficiency, and making it easier for the limiting component 3 to break. If the distance D2 between the limiting component 3 and the side wall 11 is greater than 4 mm, there will be no interference fit during the assembly of the wire harness 6, resulting in poor fixing effect of the wire harness 6 and poor consistency of the wire harness 6.

[0139] For example, the distance D2 between the limiting member 3 and the side wall 11 can be set to 3.3 mm, 3.6 mm, 4 mm, or any value between the two.

[0140] In some embodiments, the wire harness 6 has an adhesive position for connection with the second connector 62. The bracket also includes a bending member 5. The bending member 5 is connected to the side wall 11. The distance between the bending member 5 and the adhesive position along a third direction is D3, satisfying: D3 ≥ 4D1.

[0141] Understandably, the wire harness 6 will bond with the second connector 62 using adhesives or the like, thus providing a bonding location for the wire harness 6. Along the third direction, the distance D3 between the bending member 5 and the bonding location is greater than or equal to four times the outer diameter D1 of the flexible layer 63, ensuring that the wire harness 6 can bend at the location of the bending member 5, meeting the turning radius requirements of the wire harness 6.

[0142] For example, if the outer diameter D1 of the flexible layer 63 is set to 4 mm, then the distance D3 between the bent part 5 and the bonding position can be set to 16 mm.

[0143] like Figure 4 As shown, in some embodiments, along the first direction, the second connector 62 and the limiting member 3 are spaced apart, and the distance between the bottom surface of the second connector 62 and the top surface of the limiting member 3 is D4, satisfying: 3 / 4D1≤D4≤D1.

[0144] Understandably, the second connector 62 is located above the limiting member 3, so that the distance D4 between the two in the first direction is set within the range of 3 / 4D1 to D1, in order to prevent the wire harness 6 from falling off from the area between the second connector 62 and the limiting member 3, ensuring the reliable fixation of the wire harness 6, and at the same time facilitating the installation of the wire harness 6 from the area between the second connector 62 and the limiting member 3 to the area between the limiting member 3 and the side wall 11.

[0145] In some embodiments, the following condition is satisfied: 3 mm ≤ D4 ≤ 4 mm.

[0146] Understandably, the second connector 62 is located above the limiting member 3, so that the distance D4 between the two in the first direction is set within the range of 3 mm to 4 mm, in order to prevent the wire harness 6 from falling off from the area between the second connector 62 and the limiting member 3, ensuring the reliable fixation of the wire harness 6, and at the same time facilitating the installation of the wire harness 6 from the area between the second connector 62 and the limiting member 3 to the area between the limiting member 3 and the side wall 11.

[0147] If the distance D4 between the bottom surface of the second connector 62 and the top surface of the limiting member 3 is less than 3 mm, the wire harness 6 will have difficulty being inserted into the area between the limiting member 3 and the side wall 11 through the gap between them, making the assembly of the wire harness 6 difficult and affecting the assembly efficiency of the wire harness 6. If the distance D4 between the bottom surface of the second connector 62 and the top surface of the limiting member 3 is greater than 4 mm, the wire harness 6 is at risk of falling off through the gap between the bottom surface of the second connector 62 and the top surface of the limiting member 3.

[0148] For example, the distance D4 between the bottom surface of the second connector 62 and the top surface of the limiting member 3 is set to 3 mm, 4 mm, or any value between the two.

[0149] This application also provides a battery pack. The battery pack includes a bracket as described in the foregoing embodiments, or a battery management system as described in the foregoing embodiments.

[0150] In this embodiment, a cable outlet 111 is provided on the side wall 11 of the frame 1, allowing the cable harness 6 to exit through the outlet 111. The cable harness 6 can run along the support member 2 and be embedded in the limiting space formed by the support member 2, the limiting member 3, and the side wall 11, thereby achieving reliable fixation of the cable harness 6. Thus, there is no need to use auxiliary fixing structures such as cable ties to fix the cable harness 6, improving the wiring efficiency of the cable harness 6.

[0151] The embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A support, characterized in that, include: The frame has side walls with cable outlets configured for threading wire harnesses. Support member, connected to the side wall; A limiting member is connected to the support member. The limiting member is spaced apart from the side wall. The support member, the limiting member, and the side wall enclose a limiting space, which is configured to embed a wire harness.

2. The bracket according to claim 1, characterized in that, The wire harness is interference-fitted into the limiting space.

3. The bracket according to claim 1, characterized in that, The limiting members are spaced at least two apart, and at least some of the limiting members have different heights.

4. The bracket according to claim 2, characterized in that, The height of the limiting member is defined along a first direction, wherein the height of the limiting member near the outlet is higher than the top position of the outlet.

5. The bracket according to claim 2, characterized in that, The height of the limiting member is defined along a first direction. The wire harness includes at least two sub-wires arranged side by side along a third direction. The height of the limiting member near the outlet is higher than the top position of any of the sub-wires. The first direction is set at an angle to the third direction.

6. The bracket according to claim 4, characterized in that, The outer diameter of the wire harness is D1, and the thickness of the limiting member is defined along the second direction. The thickness of the limiting member is T1, which satisfies: T1 < D1, wherein the first direction and the second direction are set at an angle.

7. The stent according to claim 6, characterized in that, The width of the limiting member is defined along a third direction, and the width of the limiting member is W1, which satisfies: 3 mm ≤ W1 ≤ 5 mm. The first direction is set at an angle to the third direction, and the second direction is set at an angle to the third direction.

8. The stent according to any one of claims 1 to 7, characterized in that, The support also includes: A stop member is connected to the side wall. The wire harness passes through the outlet and bends once in a third direction. The stop member is located on the side of the outlet away from the first bend direction.

9. The bracket according to claim 8, characterized in that, The height of the stop member is defined along the first direction, and the height of the stop member is H2, which satisfies: 1 mm ≤ H2 ≤ 2 mm.

10. The stent according to claim 9, characterized in that, Along the first direction, the bottom surface of the stop member is flush with the top surface of the limiting member, or the bottom surface of the stop member is higher than the top surface of the limiting member.

11. The bracket according to claim 9, characterized in that, The outer diameter of the wire harness is D1, and the thickness of the stop member is defined along the second direction. The thickness of the stop member is T2, satisfying: D1≤T2, wherein the first direction and the second direction are set at an angle.

12. The bracket according to claim 11, characterized in that, The width of the stop member is defined along a third direction, and the width of the stop member is W2, which satisfies: 2 mm ≤ W2 ≤ 5 mm, wherein the first direction is set at an angle to the third direction, and the second direction is set at an angle to the third direction.

13. The bracket according to claim 11, characterized in that, The outer diameter of the wire harness is D1, and the distance between the side of the stop member near the outlet and the axis of the wire harness at the outlet is D5, satisfying: 1 / 3D1≤D5≤1 / 2D1.

14. The stent according to any one of claims 1 to 7, characterized in that, The support also includes: A bending member is connected to the side wall, the wire harness exits from the outlet and bends once in a first direction and extends toward the bending member, wherein the bending member is configured to abut against the wire harness and cause the wire harness to bend twice along the bending member.

15. The stent according to claim 14, characterized in that, The height of the bent component is defined along the first direction, and the height of the bent component is H3, which satisfies: 1 mm ≤ H3 ≤ 2 mm.

16. The stent according to claim 14, characterized in that, The outer diameter of the wire harness is D1, and the distance between the bottom surface of the bent part and the top surface of the support part is D6, satisfying: D1≤D6.

17. The stent according to claim 14, characterized in that, The outer diameter of the wire harness is D1, and the thickness of the bent component is defined along the second direction. The thickness of the bent component is T3, satisfying: D1≤T3, wherein the first direction and the second direction are set at an angle.

18. The stent according to claim 17, characterized in that, The width of the bent component is defined along a third direction, and the width of the bent component is W3, satisfying: 2 mm ≤ W3 ≤ 5 mm, wherein the first direction is set at an angle to the third direction, and the second direction is set at an angle to the third direction.

19. A battery management system, characterized in that, include: The stent as described in any one of claims 1 to 18; The circuit board is mounted on the bracket; The wire harness has a first connector and a second connector connected to its two ends, respectively. The first connector is electrically connected to the circuit board, and the second connector is configured as an electrical connection mating connector. The wire harness is threaded through the outlet and sandwiched between the limiting member and the side wall.

20. The battery management system according to claim 19, characterized in that, The wire harness includes a wire harness body and a flexible layer covering the wire harness body. The outer diameter of the flexible layer is D1, and the distance between the limiting member and the side wall is D2, satisfying: D2≤D1.

21. The battery management system according to claim 20, characterized in that, The following conditions must be met: 3.3 mm ≤ D2 ≤ 4 mm.

22. The battery management system according to claim 20, characterized in that, The wire harness has an adhesive position that connects to the second connector. The bracket also includes a bending member connected to the side wall. In the third direction, the distance between the bending member and the adhesive position is D3, which satisfies: D3≥4D1.

23. The battery management system according to claim 20, characterized in that, Along the first direction, the second connector is spaced apart from the limiting member, and the distance between the bottom surface of the second connector and the top surface of the limiting member is D4, satisfying: 3 / 4D1≤D4≤D1.

24. A battery pack, characterized in that, Includes the bracket as described in any one of claims 1 to 18, or the battery management system as described in any one of claims 19 to 23.

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