WO2024198039A1 - 绝缘支架及电池模组 - Google Patents

绝缘支架及电池模组 Download PDF

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Publication number
WO2024198039A1
WO2024198039A1 PCT/CN2023/092434 CN2023092434W WO2024198039A1 WO 2024198039 A1 WO2024198039 A1 WO 2024198039A1 CN 2023092434 W CN2023092434 W CN 2023092434W WO 2024198039 A1 WO2024198039 A1 WO 2024198039A1
Authority
WO
WIPO (PCT)
Prior art keywords
sheet
mounting hole
insulating bracket
elastic
busbar
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2023/092434
Other languages
English (en)
French (fr)
Inventor
陈景葱
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eve Energy Co Ltd
Original Assignee
Eve Energy Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Eve Energy Co Ltd filed Critical Eve Energy Co Ltd
Priority to EP23751836.0A priority Critical patent/EP4462573B1/en
Priority to US18/277,549 priority patent/US20260011892A1/en
Publication of WO2024198039A1 publication Critical patent/WO2024198039A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/572—Means for preventing undesired use or discharge
    • H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
    • H01M50/59—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries characterised by the protection means
    • H01M50/593—Spacers; Insulating plates
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/521—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the material
    • H01M50/522—Inorganic material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/507—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present application relates to the field of battery technology, for example, to an insulating bracket and a battery module.
  • the battery module of a motor vehicle is usually composed of multiple batteries, and two adjacent battery modules need to be connected through a bus to realize the series or parallel connection of each battery in the battery module.
  • the bus is first detachably fixed on the installation space of the insulating bracket, and then the insulating bracket with the bus fixed is set on the battery pack, and the bus is welded to the battery pole to form a battery module.
  • the related technology has the following defects:
  • the installation space of the insulating bracket in order to facilitate the installation of the bus, or to adapt to the manufacturing error of the bus, the installation space of the insulating bracket usually has an installation margin, so that after the bus is installed in the installation space, the bus has a movable space on the insulating bracket.
  • the insulating bracket will shake up and down, causing the surface of the bus to be scratched.
  • the embodiment of the present application provides an insulating bracket, which has a simple structure and high installation stability.
  • the embodiments of the present application provide a battery module with a simple structure, high yield rate and low manufacturing cost.
  • an embodiment of the present application provides an insulating bracket, which is configured to install a busbar connected to a battery pole, and comprises a main body, a fixing member and an elastic member, wherein the main body is penetrated along a first direction with at least one mounting hole configured to install the busbar, and the fixing member and the elastic member are arranged at intervals on the hole wall of each mounting hole, the fixing member is configured to abut against a first side surface of the busbar, and the elastic member is configured to abut against a second side surface of the busbar, and the elastic member always has a tendency to drive the busbar to move toward the fixing member.
  • the elastic member includes a first elastic sheet and a second elastic sheet, the first elastic sheet and the second elastic sheet are arranged on the side wall of the mounting hole at intervals, and the first elastic sheet and the second elastic sheet are both arranged to abut against the bus.
  • first spring piece and the second spring piece are arranged at an angle to each other in the mounting hole. on the two side walls of the connection; or,
  • the first elastic sheet and the second elastic sheet are arranged on two opposite side walls of the mounting hole.
  • the second elastic sheet is arranged at the corners of two adjacent side walls of the mounting hole.
  • the first spring piece includes a first body, a first end of the first body is connected to the hole wall of the mounting hole, a second end of the first body extends toward the interior of the mounting hole, and the second end of the first body protrudes toward the fixing member and is provided with a first abutting portion for abutting the bus.
  • the first abutting portion includes a first sheet and a second sheet, the first sheet is connected to the first body at an angle, the second sheet is connected to the first sheet at an angle, the second sheet is configured to abut against the bus, and the first body and the second sheet are spaced apart along the first direction.
  • connection position between the first body and the first sheet and a connection position between the first sheet and the second sheet is provided with a chamfer.
  • the second spring piece includes a second body, a first end of the second body is connected to the hole wall of the mounting hole, a second end of the second body extends toward the interior of the mounting hole, and the second end of the second body protrudes toward the fixing member and is provided with a second abutting portion for abutting the bus.
  • the second abutting portion includes a third sheet and a fourth sheet, the third sheet is connected to the second body at an angle, the fourth sheet is connected to the third sheet at an angle, the fourth sheet is configured to abut against the bus, and the second body and the fourth sheet are spaced apart along the first direction.
  • connection position between the second body and the third sheet and a connection position between the fourth sheet and the third sheet is provided with a chamfer.
  • the first elastic sheet is integrally formed with the main body; and/or,
  • the second elastic piece is integrally formed with the main body.
  • two first elastic sheets are provided, and the two first elastic sheets are symmetrically arranged on the same side wall of the mounting hole along the center line of the mounting hole; and/or,
  • the mounting holes are arranged on two opposite side walls.
  • the fixing member includes a cantilever and a clamping portion
  • the cantilever is connected to the main body
  • the clamping portion is arranged at an end of the cantilever away from the main body
  • the clamping portion protrudes toward the interior of the mounting hole
  • the clamping portion is arranged to abut against a side of the bus away from the elastic member.
  • an avoidance groove is recessed on the hole wall of the mounting hole at a position corresponding to the cantilever.
  • the fixing member is disposed at least on two opposite sides of the mounting hole along a second direction, and the second direction is disposed at an angle to the first direction.
  • At least one of the main body, the fixing member and the elastic member is made of engineering plastic alloy.
  • a limit plate is protruding from the hole wall of the mounting hole, and the limit plate and the fixing member are spaced apart along the first direction.
  • a plurality of the mounting holes are spaced apart along a third direction on the main body, and the third direction is arranged at an angle to the first direction.
  • an embodiment of the present application provides a battery module, comprising a plurality of batteries, a bus and the insulating bracket described above, wherein all of the batteries are arranged along a third direction, the insulating bracket is arranged on a side of the battery where a pole is provided, and a bus is provided in the mounting hole of each of the insulating brackets, and the bus bars are respectively connected to the poles of two adjacent batteries.
  • the busbar is provided with a slot, and the clamping portion of the fixing member of the insulating bracket is clamped in the slot.
  • the insulating bracket sets a mounting hole on the main body so that the bus can be installed in the mounting hole, and cooperates with the fixing part and the elastic part to press against the opposite two side surfaces of the bus along the thickness direction, so as to achieve the fixing of the bus by the insulating bracket.
  • the elastic part can use its own elasticity to make the installation space in the mounting hole adjustable to meet the installation of busbars of different thicknesses, and has a wide range of applicability.
  • the elastic part always has a tendency to drive the busbar to move toward the fixing part, so the elastic part and the fixing part can always press against the opposite sides of the busbar, so that the busbar cannot move in the mounting hole, that is, the busbar has no space for movement, which not only reduces the risk of damage caused by collision and friction between the insulating bracket and the busbar, but also improves the reliability, stability and durability of the product, thereby reducing the risk of the insulating bracket jumping off due to vibration during the transportation of incoming materials, thereby improving the insulation bracket. Material yield rate.
  • FIG. 1 is a schematic structural diagram of an insulating bracket according to an embodiment of the present application.
  • FIG. 2 is a partial enlarged view of point A in FIG. 1 .
  • FIG. 3 is one of the partial schematic diagrams of the insulating bracket from another perspective of the embodiment of the present application.
  • FIG. 4 is a second partial schematic diagram of the insulating bracket from another perspective of the embodiment of the present application.
  • FIG. 5 is a schematic diagram of the structure of a battery module according to an embodiment of the present application.
  • FIG. 6 is a partial enlarged view of point B in FIG. 5 .
  • connection should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements.
  • connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements.
  • a first feature being “on” or “below” a second feature may include the first and second features being in direct contact, or the first and second features being in contact not directly but through another feature between them.
  • a first feature being “above”, “above” or “above” a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature.
  • the term "surface” includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature is smaller in level than the second feature.
  • the battery module of a motor vehicle is usually composed of multiple batteries, and two adjacent battery modules need to be connected through a bus to realize the series or parallel connection of the battery modules.
  • the bus is first detachably fixed on the installation space of the insulating bracket, and then the insulating bracket with the bus fixed is set on the battery pack, and the bus is welded to the battery pole to form a battery module.
  • the related technology has the following defects:
  • the installation space of the insulating bracket in order to facilitate the installation of the bus, or to adapt to the manufacturing error of the bus, the installation space of the insulating bracket usually has an installation margin, so that after the bus is installed in the installation space, the bus has a movable space in the insulating bracket.
  • the insulating bracket will shake up and down, causing the surface of the bus to be scratched.
  • the present application provides an insulating bracket, which is configured to install a busbar 4 connected to a battery 6 pole.
  • the insulating bracket includes a main body 1, a fixing member 2 and an elastic member 3.
  • the main body 1 is provided with at least one mounting hole 11 along a first direction.
  • the mounting hole 11 is configured to install the busbar 4.
  • the hole wall of each mounting hole 11 is provided with a fixing member 2 and an elastic member 3 at intervals.
  • the fixing member 2 is configured to abut against a first side surface of the busbar 4, and the elastic member 3 is configured to abut against a second side surface of the busbar 4.
  • the elastic member 3 always has a tendency to drive the busbar 4 to move toward the fixing member 2.
  • the first side surface is opposite to the second side surface.
  • the insulating bracket is provided with a mounting hole 11 on the main body 1, so that the busbar 4 can be installed in the mounting hole 11, and the fixing member 2 and the elastic member 3 cooperate to abut against the opposite two sides of the busbar 4 along the thickness direction, so as to achieve the fixing of the busbar 4 by the insulating bracket.
  • the elastic member 3 can utilize its own elasticity to make the installation space in the installation hole 11 adjustable to meet the installation requirements of busbars 4 of different thicknesses, and has a wide range of applicability.
  • the elastic member 3 always has a tendency to drive the busbar 4 to move toward the fixing member 2, so the elastic member 3 and the fixing member 2 can always press against the opposite sides of the busbar 4, so that the busbar 4 cannot move in the installation hole 11, that is, the busbar 4 has no space for movement, thereby reducing the risk of damage caused by collision and friction between the insulating bracket and the busbar 4, thereby improving the reliability, stability and durability of the product, thereby reducing the risk of the insulating bracket jumping off due to vibration during the transportation of incoming materials, and thereby improving the incoming material yield of the insulating bracket.
  • the Z-axis direction is the first direction
  • the X-axis direction is the second direction
  • the Y-axis direction is the third direction.
  • the busbar 4 is an aluminum busbar, which is light and has good conductivity.
  • the busbar 4 can also be a copper busbar or a busbar structure made of other materials.
  • the elastic member 3 includes a first elastic sheet 31 and a second elastic sheet 32, which are arranged at intervals on the side wall of the mounting hole 11, and the first elastic sheet 31 and the second elastic sheet 32 are arranged to abut against the bus 4.
  • the first elastic sheet 31 and the second elastic sheet 32 are elastic sheets, and by arranging the first elastic sheet 31 and the second elastic sheet 32 to abut against the bus 4 together, This provides elastic support, thereby improving the stability of the insulating bracket in fixing the busbar 4 .
  • the first elastic sheet 31 and the second elastic sheet 32 are arranged on two side walls of the mounting hole 11 connected at an angle, so that the first elastic sheet 31 and the second elastic sheet 32 can elastically support multiple positions of the bus 4 at the same time, and the stability is high.
  • the first elastic sheet 31 and the second elastic sheet 32 are arranged on two opposite side walls of the mounting hole 11. Similarly, this design can also support both sides of the bus 4, and the stability is high.
  • the second spring piece 32 is arranged at the corners of two adjacent side walls of the mounting hole 11, so that one end of the second spring piece 32 is simultaneously connected to the two adjacent side walls of the mounting hole 11, thereby improving the connection stability between the second spring piece 32 and the main body 1.
  • two first spring pieces 31 are provided, and the two first spring pieces 31 are symmetrically arranged on the same side wall of the mounting hole 11 along the center line of the mounting hole 11.
  • two second spring pieces 32 are provided, and the two second spring pieces 32 are symmetrically arranged on opposite side walls of the mounting hole 11 along the center line of the mounting hole 11.
  • the two first elastic sheets 31 may also be asymmetrically arranged, or the two second elastic sheets 32 may be asymmetrically arranged.
  • the first elastic sheet 31 includes a first body 311, a first end of the first body 311 is connected to the hole wall of the mounting hole 11, a second end of the first body 311 extends toward the inside of the mounting hole 11, and the second end of the first body 311 is protruded toward the fixing member 2 and is provided with a first abutting portion 312 for abutting against the bus 4.
  • the first abutting portion 312 can contact the bus 4 in advance and provide support force for it compared with other positions of the first elastic sheet 31, and because the first abutting portion 312 is located at one end of the first body 311 away from the hole wall of the mounting hole 11, the first body 311 can provide a larger elastic space for the first abutting portion 312, so that the mounting hole 11 of the insulating bracket has a larger adjustment space.
  • the first abutting portion 312 includes a first sheet 3121 and a second sheet 3122, the first sheet 3121 is connected to the first body 311 at an angle, the second sheet 3122 is connected to the first sheet 3121 at an angle, the second sheet 3122 is configured to abut against the bus 4, and the first body 311 and the second sheet 3122 are spaced apart along the first direction.
  • an end of the second sheet 3122 away from the first sheet 3121 extends toward the inside of the mounting hole 11, so that the first body 311, the first sheet 3121 and the second sheet 3122 are connected to form a letter Z-shaped structure, and the first elastic sheet 31 of the structure has a strong bending resistance.
  • first body 311 and the first sheet 3121 are connected at a right angle
  • first sheet 3121 and the second sheet 3122 are connected at a right angle
  • first body 311 and the first sheet 3121 , as well as the first sheet 3121 and the second sheet 3122 may be arranged at an obtuse angle or an acute angle.
  • the other structures of this embodiment are the same, only the shape of the first spring piece 31 is different from that of the other embodiments.
  • the shape of the first elastic sheet 31 is different.
  • one end of the second sheet 3122 away from the first sheet 3121 extends toward the hole wall of the mounting hole 11, so that the first body 311, the first sheet 3121 and the second sheet 3122 are connected to form a letter U-shaped structure, and the first elastic sheet 31 in the U-shaped structure also has a strong bending strength.
  • connection position between the first body 311 and the first sheet 3121 and the connection position between the first sheet 3121 and the second sheet 3122 is provided with a chamfer, and the stress concentration at the corner position of the first elastic sheet 31 can be reduced by providing the chamfer, thereby improving the torsion resistance of the first elastic sheet 31.
  • chamfers are provided at the connection position between the first body 311 and the first sheet 3121 and the connection position between the first sheet 3121 and the second sheet 3122 to improve the torsion resistance of the first elastic sheet 31 and the compatibility with the bus 4.
  • a chamfer may be provided only at one of the connection position between the first body 311 and the first sheet 3121 or the connection position between the first sheet 3121 and the second sheet 3122.
  • the first elastic sheet 31 is integrally formed with the main body 1 , that is, the first body 311 , the first sheet 3121 and the second sheet 3122 are integrally formed.
  • the integrally formed structure has high torsional strength and is not easy to break.
  • the second elastic sheet 32 includes a second body 321, a first end of the second body 321 is connected to the hole wall of the mounting hole 11, a second end of the second body 321 extends toward the inside of the mounting hole 11, and the second end of the second body 321 protrudes toward the clamping portion 22 of the fixing member 2 and is provided with a second abutting portion 322 for abutting the bus 4.
  • the second abutting portion 322 can contact the bus 4 in advance and provide support for it compared with other positions of the second elastic sheet 32, and because the second abutting portion 322 is located at one end of the second body 321 away from the hole wall of the mounting hole 11, the second body 321 can provide a larger elastic space for the second abutting portion 322, so that the mounting hole 11 of the insulating bracket has a larger adjustment space.
  • the second abutting portion 322 includes a third sheet 3221 and a fourth sheet 3222, the third sheet 3221 is connected to the second body 321 at an angle, the fourth sheet 3222 is connected to the third sheet 3221 at an angle, the fourth sheet 3222 is arranged to abut against the bus 4, and the second body 321 and the fourth sheet 3222 are arranged at intervals along the first direction.
  • one end of the fourth sheet 3222 away from the third sheet 3221 extends toward the inside of the mounting hole 11, so that the second elastic sheet 32 also presents a letter Z-shaped structure, and the second elastic sheet 32 of this structure has high elasticity and strong torsional bending strength.
  • the second body 321 is connected to the third sheet 3221 at a right angle
  • the third sheet 3221 is connected to the fourth sheet 3222 at a right angle
  • the second body 321 and the third sheet 3221 , as well as the third sheet 3221 and the fourth sheet 3222 may also be arranged at an obtuse angle or an acute angle.
  • the other structures of this embodiment are the same, and only the shape of the second elastic piece 32 is different from the shape of the first elastic piece 31 of other embodiments.
  • One end extends toward the hole wall of the mounting hole 11 so that the second body 321 , the third sheet 3221 and the fourth sheet 3222 are connected to form a U-shaped structure.
  • the second elastic sheet 32 in the U-shaped structure also has strong bending strength.
  • connection position between the second body 321 and the third sheet 3221 and the connection position between the fourth sheet 3222 and the third sheet 3221 is provided with a chamfer, and the concentrated stress at the corner is eliminated by providing a chamfer on the second elastic sheet 32.
  • the connection position between the second body 321 and the third sheet 3221 and the connection position between the fourth sheet 3222 and the third sheet 3221 are both provided with a chamfer to improve the torsion resistance of the elastic sheet and the compatibility with the bus 4.
  • a chamfer may be provided only at one of the connection position between the second body 321 and the third sheet 3221 or the connection position between the third sheet 3221 and the fourth sheet 3222.
  • the side surfaces of the second sheet 3122 and the fourth sheet 3222 facing the bus 4 are flat.
  • the contact area between the flat structure and the bus 4 is large, and a stable elastic force can be provided for the bus 4 .
  • first spring piece 31 and the second spring piece 32 are both in a Z-shaped structure. In other embodiments, the first spring piece 31 and the second spring piece 32 may also be in a U-shaped structure, an L-shaped structure or other shapes.
  • the second elastic piece 32 is integrally formed with the main body 1 , that is, the second body 321 , the third sheet 3221 and the fourth sheet 3222 are integrally formed, thereby improving the torsion resistance of the second elastic piece 32 .
  • the length extension direction of the first elastic sheet 31 is perpendicular to the length extension direction of the second elastic sheet 32. In one embodiment, the length of the first elastic sheet 31 extends toward the second direction, and the length of the second elastic sheet 32 extends toward the third direction, and the third direction is perpendicular to the first direction and the second direction, respectively.
  • This structure can provide a stable supporting force for the busbar 4.
  • the elastic member 3 includes a mounting plate and a spring.
  • the mounting plate and the fixing member 2 are spaced apart on the hole wall of the mounting hole 11.
  • a spring is provided on one end surface of the mounting plate facing the fixing member 2. The spring is configured to abut against the bus 4 to provide elastic force to the bus 4 through the spring.
  • the fixing member 2 is configured to be engaged with the busbar 4 to facilitate assembly and disassembly of the busbar 4 on the insulating bracket.
  • the fixing member 2 and the busbar 4 may also be connected by bonding, buckling or other detachable connection methods.
  • fixing members 2 are provided at least on opposite sides of the mounting hole 11 along the second direction, and the second direction is provided at an angle to the third direction.
  • the second direction is perpendicular to the third direction, and two fixing members 2 are provided, and the two fixing members 2 are provided on opposite side walls of the mounting hole 11, so that the bus 4 is limited by the two fixing members 2, thereby improving the installation stability of the bus 4.
  • the fixing member 2 includes a cantilever 21 and a clamping portion 22.
  • the cantilever 21 is connected to the main body 1.
  • the clamping portion 22 is arranged at one end of the cantilever 21 away from the main body 1, and the clamping portion 22 is protruded toward the inside of the mounting hole 11, and the clamping portion 22 is arranged to abut against the bus 4. It can be understood that the cantilever 21 also has a certain elasticity so that the cantilever 21 can be bent toward both sides.
  • the two clamping portions 22 can be squeezed outward, and then the bus 4 can be put into the mounting hole 11, and the bus 4 can be pressed to move to a proper position in the direction of offsetting the elastic force of the elastic member 3, and then the squeezing of the clamping portion 22 is released, and the cantilever 21 will drive the clamping portion 22 to rebound, and then the squeezing of the bus 4 is released, and the elastic member 3 will drive the bus 4 to move toward the clamping portion 22, so that the clamping portion 22 and the first elastic sheet 31 and the second elastic sheet 32 limit the bus 4 to achieve the fixing of the bus 4.
  • an avoidance groove 12 is recessed on the hole wall of the mounting hole 11 at a position corresponding to the cantilever 21 , so that one end of the cantilever 21 where the clamping portion 22 is provided has movable space on the main body 1 , so as to facilitate the installation of the bus 4 .
  • a guide slope is provided on a side of the clamping portion 22 facing away from the elastic member 3 , and the guide slope is arranged to be inclined downward toward the inside of the mounting hole 11 to facilitate the installation of the busbar 4 .
  • the cross-section of the clamping portion 22 is a trapezoidal structure, wherein the lower base of the trapezoidal clamping portion 22 is connected to the cantilever 21, and the surface formed by the lower base of the clamping portion 22 is a plane.
  • the contact area between the plane structure and the bus 4 is large, the limiting effect is better, and the stability of the fixing member 2 in limiting the bus 4 can be improved.
  • At least one of the main body 1, the fixing member 2 and the elastic member 3 is made of an engineering plastic alloy, which is also called PC+ABS.
  • the material has excellent heat resistance, dimensional stability, impact resistance, and processing fluidity.
  • the main body 1, the fixing member 2 and the elastic member 3 are all made of an engineering plastic alloy in one piece.
  • a limit plate 5 is protrudingly provided on the hole wall of the mounting hole 11, and the limit plate 5 and the clamping portion 22 are spaced apart along the first direction, and the limit plate 5 is provided to prevent the first spring sheet 31 and the second spring sheet 32 from being damaged by excessive extrusion of the bus 4.
  • the bus 4 needs to be extruded, and the bus 4 will extrude the first spring sheet 31 and the second spring sheet 32.
  • a plurality of mounting holes 11 are arranged at intervals along the third direction on the main body 1, and the third direction is arranged at an angle with the first direction, so that the insulating bracket can fix multiple bus bars 4 at the same time, thereby electrically connecting multiple batteries 6.
  • twenty mounting holes 11 are arranged, wherein ten mounting holes 11 form a mounting group, and two mounting groups are arranged on opposite sides of the main body 1 along its width direction, wherein the width direction of the main body 1 is the second direction, and the mounting holes 11 in the mounting group are arranged along the length direction of the main body 1, that is, arranged along the third direction. Therefore, the insulating bracket can fix twenty bus bars 4 at the same time.
  • the present application also discloses a battery module, including a plurality of batteries 6, a plurality of busbars 4 and an insulating bracket of any of the above embodiments, all of the batteries 6 are arranged along the third direction, the insulating bracket is arranged on a side of the plurality of batteries 6 provided with poles 61, a busbar 4 is arranged in the mounting hole 11 of each insulating bracket, and the busbar 4 is respectively connected to the poles 61 of two adjacent batteries 6.
  • the insulating bracket is provided with a mounting hole 11 for mounting the busbar 4 on the main body 1, and the busbar 4 is limited by the fixing member 2 and the elastic member 3, and the elastic member 3 always has a tendency to drive the busbar 4 to move toward the fixing member 2, so that there is an adjustment space in the mounting hole 11, so that the insulating bracket can fix the busbar 4 of different thicknesses, and the poles 61 designed for different models of batteries 6 have different heights, and the busbars 4 connected to different poles 61 have different sizes, so the bracket assembly can be suitable for different models of batteries 6, because the adaptation compatibility to the height difference of the battery 6 is high, there is no need to specially open a mold to design different insulating brackets, and the manufacturing cost of the battery module is reduced.
  • a card slot 41 is provided on the bus 4, and the card connection portion 22 is clamped in the card slot 41.
  • the card connection portion 22 cooperates with the card slot 41 to improve the stability of the bus 4 in the installation cavity, thereby improving the stability of the entire bracket assembly.
  • the card slot 41 is provided along the second direction on the bus 4, and the card connection portions 22 of the clamping parts on both sides are clamped at both ends of the card slot 41.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Installation Of Bus-Bars (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

本申请涉及一种绝缘支架及电池模组，其中，绝缘支架包括主体、固定件和弹性件，主体沿第一方向贯穿设置有至少一个用于安装汇流排的安装孔，每个安装孔的孔壁上间隔设置有固定件和弹性件，固定件设置为与汇流排的第一侧面抵接，弹性件设置为与汇流排的第二侧面抵接，弹性件始终具有驱动汇流排朝向抵紧固定件的移动趋势。

Description

绝缘支架及电池模组
本申请要求在2023年03月30日提交中国专利局、申请号为202320682955.4的中国专利申请的优先权，该申请的全部内容通过引用结合在本申请中。
技术领域
本申请涉及电池技术领域，例如涉及一种绝缘支架及电池模组。
背景技术
目前，动车电池模组通常由多个电池组成，相邻两个电池模组需要通过汇流排连接以实现电池模组中各个电池的串联或并联。在装配过程中，先将汇流排可拆卸固定在绝缘支架的安装空间上，然后将固定好汇流排的绝缘支架设置在电池组上，并将汇流排与电池的极柱焊接形成电池模组。相关技术存在以下缺陷：绝缘支架在生产过程中，为了便于汇流排的安装，或，为了适配汇流排的制造误差，绝缘支架的安装空间通常具有安装余量，以使汇流排安装在安装空间后，汇流排在绝缘支架上具有活动空间，当电池模组在震动时，绝缘支架会上下晃动而造成汇流排的表面被划损。
发明内容
本申请实施例提供一种绝缘支架，其结构简单，安装稳定性较高。
本申请实施例提供一种电池模组，结构简单，良品率高，且制造成本低。
第一方面，本申请实施例提供一种绝缘支架，设置为安装与电池极柱连接的汇流排，其包括主体、固定件和弹性件，所述主体沿第一方向贯穿设置有至少一个设置为安装所述汇流排的安装孔，每个所述安装孔的孔壁上间隔设置有所述固定件和所述弹性件，所述固定件设置为与所述汇流排的第一侧面抵接，所述弹性件设置为与所述汇流排第二侧面抵接，所述弹性件始终具有驱动所述汇流排朝向抵紧所述固定件的移动趋势。
在一实施例中，所述弹性件包括第一弹片和第二弹片，所述第一弹片和所述第二弹片间隔设置在所述安装孔的侧壁上，且所述第一弹片和所述第二弹片均设置为与所述汇流排抵接。
在一实施例中，所述第一弹片和所述第二弹片设置在所述安装孔呈夹角连 接的两侧壁上；或，
所述第一弹片和所述第二弹片设置所述安装孔相对的两个侧壁上。
在一实施例中，所述第二弹片设置在所述安装孔的相邻两个侧壁的拐角处。
在一实施例中，所述第一弹片包括第一本体，所述第一本体的第一端与所述安装孔的孔壁连接，所述第一本体的第二端朝向所述安装孔的内部延伸，且所述第一本体的第二端朝向所述固定件凸出设置有用于抵接所述汇流排的第一抵接部。
在一实施例中，所述第一抵接部包括第一片体和第二片体，第一片体与所述第一本体呈夹角连接，所述第二片体与所述第一片体呈夹角连接，所述第二片体设置为与所述汇流排抵接，所述第一本体与所述第二片体沿所述第一方向间隔设置。
在一实施例中，所述第一本体与所述第一片体的连接位置及所述第一片体与所述第二片体的连接位置两者中至少一者设置有倒角。
在一实施例中，所述第二弹片包括第二本体，所述第二本体的第一端与所述安装孔的孔壁连接，所述第二本体的第二端朝向所述安装孔的内部延伸，所述第二本体的第二端朝向所述固定件凸出设置有用于抵接所述汇流排的第二抵接部。
在一实施例中，所述第二抵接部包括第三片体和第四片体，所述第三片体与所述第二本体呈夹角连接，所述第四片体与所述第三片体呈夹角连接，所述第四片体设置为与所述汇流排抵接，所述第二本体与所述第四片体沿所述第一方向间隔设置。
在一实施例中，所述第二本体与所述第三片体的连接位置及所述第四片体与所述第三片体的连接位置两者中至少一者设置有倒角。
在一实施例中，所述第一弹片与所述主体一体成型；和/或，
所述第二弹片与所述主体一体成型。
在一实施例中，所述第一弹片设置有两个，两个所述第一弹片沿所述安装孔的中心线对称设置在所述安装孔的同一侧壁上；和/或，
所述第二弹片设置有两个，两个所述第二弹片沿所述安装孔的中心线对称 设置在所述安装孔相对两侧壁上。
在一实施例中，所述固定件包括悬臂和卡接部，所述悬臂与所述主体连接，所述卡接部设置在所述悬臂远离所述主体的一端，所述卡接部朝向所述安装孔的内部凸出设置，所述卡接部设置为与所述汇流排背离所述弹性件的一侧面抵接。
在一实施例中，所述安装孔的孔壁上对应所述悬臂的位置凹设有避让槽。
在一实施例中，至少在所述安装孔沿第二方向的相对两侧设置有所述固定件，所述第二方向与所述第一方向呈夹角设置。
在一实施例中，所述主体、所述固定件和所述弹性件三者中至少一者采用工程塑料合金制成。
在一实施例中，所述安装孔的孔壁凸出设置有限位板，所述限位板与所述固定件沿所述第一方向间隔设置。
在一实施例中，所述主体上沿第三方向间隔设置有多个所述安装孔，所述第三方向与所述第一方向呈夹角设置。
第二方面，本申请实施例提供一种电池模组，包括多个电池、汇流排和上述所述的绝缘支架，所有的所述电池沿第三方向排布，所述绝缘支架设置在所述电池设置有极柱的一侧面，每个所述绝缘支架的安装孔内设置有一个所述汇流排，所述汇流排分别连接相邻两个电池的极柱。
在一实施例中，所述汇流排设置有卡槽，所述绝缘支架的固定件的卡接部卡设在所述卡槽内。
本申请实施例的有益效果为：该绝缘支架通过在主体上设置安装孔，使得汇流排可以安装在安装孔内，并通过固定件和弹性件配合，以抵紧在汇流排沿厚度方向的相对两侧面上，以实现绝缘支架对汇流排的固定。而该弹性件能利用其自身的弹性，让安装孔内的安装空间可调节，以满足不同厚度汇流排的安装，适用性较广，且弹性件始终具有驱动汇流排朝向抵紧固定件的移动趋势，因此弹性件和固定件能始终抵紧汇流排的相对两侧，使得汇流排在安装孔内无法移动，也就是说汇流排不具有活动空间，不仅降低了绝缘支架与汇流排发生碰撞摩擦而损坏的风险，以提高了产品的可靠性、稳定性以及耐久性，从而降低了绝缘支架在来料运输过程中震动产生的跳脱风险，进而提高了绝缘支架来 料良品率。
附图说明
下面根据附图和实施例对本申请作进一步详细说明。
图1为本申请实施例的绝缘支架的结构示意图。
图2为图1的A处的局部放大图。
图3为本申请实施例的绝缘支架另一视角的局部示意图之一。
图4为本申请实施例的绝缘支架另一视角的局部示意图之二。
图5为本申请实施例的电池模组的结构示意图。
图6为图5的B处的局部放大图。
图中：
1、主体；11、安装孔；12、避让槽；2、固定件；21、悬臂；22、卡接部；
3、弹性件；31、第一弹片；311、第一本体；312、第一抵接部；3121、第一片体；3122、第二片体；32、第二弹片；321、第二本体；322、第二抵接部；3221、第三片体；3222、第四片体；4、汇流排；41、卡槽；5、限位板；6、电池；61、极柱。
具体实施方式
下面将结合附图对本申请实施例的技术方案作详细描述，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
在本申请的描述中，除非另有明确的规定，术语“相连”、“连接”、“固定”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本申请中的具体含义。
在本申请中，除非另有明确的规定，第一特征在第二特征之“上”或之“下”可以包括第一和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且，第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下 面”包括第一特征在第二特征正下方和斜下方，或仅仅表示第一特征水平高度小于第二特征。
目前，动车电池模组通常由多个电池组成，相邻两个电池模组需要通过汇流排连接以实现电池模组的串联或并联。在装配过程中，先将汇流排可拆卸固定在绝缘支架的安装空间上，然后将固定好汇流排的绝缘支架设置在电池组上，并将汇流排与电池极柱焊接形成电池模组。相关技术存在以下缺陷：绝缘支架在生产过程中，为了便于汇流排的安装，或，为了适配汇流排的制造误差，绝缘支架的安装空间通常具有安装余量，以使汇流排安装在安装空间后，汇流排在绝缘支架具有活动空间，当电池模组在振动时，绝缘支架会上下晃动而造成汇流排的表面被划损。
为解决上述技术问题，如图1和图2所示，本申请提供一种绝缘支架，该绝缘支架设置为安装与电池6极柱连接的汇流排4，该绝缘支架包括主体1、固定件2和弹性件3，主体1沿第一方向贯穿设置有至少一个安装孔11，安装孔11设置为安装汇流排4，每个安装孔11的孔壁上间隔设置有固定件2和弹性件3，固定件2设置为与汇流排4的第一侧面抵接，弹性件3设置为与汇流排4的第二侧面抵接，弹性件3始终具有驱动汇流排4朝向抵紧固定件2的移动趋势。其中，第一侧面与第二侧面是相对的。该绝缘支架通过在主体1上设置安装孔11，使得汇流排4可以安装在安装孔11内，并通过固定件2和弹性件3配合，以抵紧在汇流排4沿厚度方向的相对两侧面上，以实现绝缘支架对汇流排4的固定。而该弹性件3能利用其自身的弹性，让安装孔11内的安装空间可调节，以满足不同厚度汇流排4的安装，适用性较广，且弹性件3始终具有驱动汇流排4朝向抵紧固定件2的移动趋势，因此弹性件3和固定件2能始终抵紧汇流排4的相对两侧，使得汇流排4在安装孔11内无法移动，也就是说汇流排4不具有活动空间，降低了绝缘支架与汇流排4发生碰撞摩擦而损坏的风险，以提高了产品的可靠性、稳定性以及耐久性，从而降低了绝缘支架在来料运输过程中震动产生的跳脱风险，进而提高了绝缘支架来料良品率。
需要说明的是：附图坐标系中，Z轴方向为第一方向，X轴方向第二方向，Y轴方向为第三方向。
可选地，汇流排4为铝排，铝排的重量较轻，且导电性较好。在其他实施例中，汇流排4还可以为铜排或采用其他材料制成的母排结构。
本实施例中，如图2所示，弹性件3包括第一弹片31和第二弹片32，第一弹片31和第二弹片32间隔设置在安装孔11的侧壁上，且第一弹片31和第二弹片32均设置为与汇流排4抵接。可理解的是，第一弹片31和第二弹片32是一种具有弹性的片体，通过设置第一弹片31和第二弹片32共同抵紧汇流排4， 以提供弹力支撑，提高了绝缘支架对汇流排4固定的稳定性。
在一实施例中，第一弹片31和第二弹片32设置在安装孔11呈夹角连接的两侧壁上，使得第一弹片31和第二弹片32能同时对汇流排4多个位置进行弹力支撑，稳定性较高。一些实施例中，第一弹片31和第二弹片32设置在安装孔11相对的两个侧壁上。同样地该设计也可以对汇流排4的两侧进行支撑，稳定性较高。
在一实施例中，第二弹片32设置在安装孔11的相邻两个侧壁的拐角处，因此第二弹片32的一端同时与安装孔11相邻的两个侧壁连接，提高了第二弹片32与主体1之间的连接稳定性。
示例性地，第一弹片31设置有两个，两个第一弹片31沿安装孔11的中心线对称设置在安装孔11的同一侧壁上。和/或，第二弹片32设置有两个，两个第二弹片32沿安装孔11的中心线对称设置在安装孔11相对两侧壁上。通过上述设计，两个第一弹片31和第二两个第二弹片32能对称分布在安装孔11内，使得弹片与汇流排4接触面受力更加均匀，汇流排4的稳定性更高。
其他实施例中，两个第一弹片31也可以为非对称设置，或，两个第二弹片32为非对称设置。
在一实施例中，如图3所示，第一弹片31包括第一本体311，第一本体311的第一端与安装孔11的孔壁连接，第一本体311的第二端朝向安装孔11的内部延伸，且第一本体311的第二端朝向固定件2凸出设置有用于抵接汇流排4的第一抵接部312。在安装汇流排4时，第一抵接部312相比与第一弹片31的其他位置可以提前对汇流排4进行接触并为其提供支撑力，且由于第一抵接部312位于第一本体311远离安装孔11孔壁的一端，第一本体311能为第一抵接部312提供较大的弹性空间，使得该绝缘支架的安装孔11具有较大的调节空间。
在一实施例中，第一抵接部312包括第一片体3121和第二片体3122，第一片体3121与第一本体311呈夹角连接，第二片体3122与第一片体3121呈夹角连接，第二片体3122设置为与汇流排4抵接，第一本体311与第二片体3122沿第一方向间隔设置。本实施例中，第二片体3122远离第一片体3121的一端朝向安装孔11内部延伸，以使第一本体311、第一片体3121和第二片体3122连接形成字母Z型结构，该结构的第一弹片31具有很强的抗弯曲强度。可选的，第一本体311与第一片体3121之间呈直角连接，第一片体3121和第二片体3122呈直角连接。其他实施例中，第一本体311和第一片体3121之间，以及第一片体3121和第二片体3122之间可以呈钝角或锐角设置。
一实施例中，该实施例的其他结构相同，仅第一弹片31的形状与其他实施 例的第一弹片31的形状不同。示例性地，第二片体3122远离第一片体3121的一端朝向安装孔11的孔壁延伸，以使第一本体311、第一片体3121和第二片体3122连接形成字母U型结构，呈U型结构的第一弹片31同样具有较强的抗弯曲强度。
在一实施例中，第一本体311与第一片体3121的连接位置及第一片体3121与第二片体3122的连接位置两者中至少一者设置有倒角，通过设置倒角能降低第一弹片31拐角位置的应力集中，从而提高第一弹片31的抗扭能力。本实施例中，在第一本体311和第一片体3121的连接位置以及在第一片体3121和第二片体3122的连接位置均设置有倒角，以提高第一弹片31的抗扭能力，以及与汇流排4的配合的兼容性。在其他实施例中，可以仅在第一本体311与第一片体3121的连接位置或第一片体3121与第二片体3122的连接位置两者中一者设置倒角。
在一实施例中，第一弹片31与主体1一体成型，也就是说，第一本体311、第一片体3121和第二片体3122一体成型，一体成型的结构抗扭强度高，不易断裂。
另一实施例中，如图4所示，第二弹片32包括第二本体321，第二本体321的第一端与安装孔11的孔壁连接，第二本体321的第二端朝向安装孔11的内部延伸，第二本体321的第二端朝向固定件2的卡接部22凸出设置有用于抵接汇流排4的第二抵接部322。在安装汇流排4时，第二抵接部322相比与第二弹片32的其他位置可以提前对汇流排4进行接触并为其提供支撑力，且由于第二抵接部322位于第二本体321远离安装孔11孔壁的一端，第二本体321能为第二抵接部322提供较大的弹性空间，使得该绝缘支架的安装孔11具有较大的调节空间。
在一实施例中，第二抵接部322包括第三片体3221和第四片体3222，第三片体3221与第二本体321呈夹角连接，第四片体3222与第三片体3221呈夹角连接，第四片体3222设置为与汇流排4抵接，第二本体321与第四片体3222沿第一方向间隔设置。本实施例中，第四片体3222远离第三片体3221的一端朝向安装孔11的内部延伸，以使第二弹片32也呈字母Z型结构，该结构的第二弹片32具有较高的弹性，以及具有很强的抗扭弯曲强度。在一实施例中，第二本体321与第三片体3221呈直角连接，第三片体3221与第四片体3222呈直角连接。当然，在其他实施例中，第二本体321与第三片体3221，以及第三片体3221与第四片体3222还可以呈钝角或锐角设置。
一实施例中，该实施例的其他结构相同，仅第二弹片32的形状与其他实施例的第一弹片31的形状不同。示例性地，第四片体3222远离第三片体3221的 一端朝向安装孔11的孔壁延伸，以使第二本体321、第三片体3221和第四片体3222连接形成字母U型结构，呈U型结构的第二弹片32同样具有较强的抗弯曲强度。
可选地，第二本体321与第三片体3221的连接位置及第四片体3222与第三片体3221的连接位置两者中至少一者设置有倒角，通过在第二弹片32上设置倒角以消除拐角处的集中应力。本实施例中，第二本体321与第三片体3221的连接位置，以及第四片体3222与第三片体3221的连接位置均设置有倒角，以提高弹片的抗扭能力，以及与汇流排4的配合的兼容性。一些实施例中，可以仅在第二本体321与第三片体3221的连接位置或第三片体3221与第四片体3222的连接位置两者中一者设置倒角。
在一实施例中，第二片体3122和第四片体3222朝向汇流排4的一侧面为平面，平面结构与汇流排4之间的接触面积较大，能为汇流排4提供稳定的弹力。
一实施例中，第一弹片31和第二弹片32均呈字母Z型结构，在其他实施例中，第一弹片31和第二弹片32还可以呈字母U型结构、呈字母L型结构或其他形状。
在一实施例中，第二弹片32与主体1一体成型，也就是说，第二本体321、第三片体3221和第四片体3222一体成型，提高了第二弹片32的抗扭能力。
一些实施例中，第一弹片31的长度延伸方向与第二弹片32的长度延伸方向垂直设置，在一实施例中，第一弹片31的长度朝向第二方向延伸，第二弹片32的长度朝向第三方向延伸，第三方向分别与第一方向以及第二方向垂直设置。该结构中能为汇流排4提供为稳定支撑力。
另一实施例中，弹性件3包括安装板和弹簧，安装板与固定件2间隔设置在安装孔11的孔壁上，安装板朝向固定件2的一端面设置有弹簧，弹簧设置为与汇流排4抵接，以通过弹簧为汇流排4提供弹力。
本实施例中，如图3和图6所示，固定件2设置为与汇流排4卡接，以便于汇流排4在绝缘支架上的拆装。在其他实施例中，固定件2与汇流排4还可以采用粘接、扣接或其他可拆卸的连接方式。
在一实施例中，至少在安装孔11沿第二方向的相对两侧设置有固定件2，第二方向与第三方向呈夹角设置。本实施例中，第二方向与第三方向垂直设置，固定件2设置有两个，两个固定件2设置在安装孔11的相对两侧壁上，因此汇流排4会受到两个固定件2的限位作用，提高了汇流排4安装稳定性。
在一实施例中，固定件2包括悬臂21和卡接部22，悬臂21与主体1连接， 卡接部22设置在悬臂21远离主体1的一端，且卡接部22朝向安装孔11的内部凸出设置，卡接部22设置为与汇流排4抵接。可以理解的是，悬臂21也具有一定的弹性，以使悬臂21能被朝两侧掰动。在安装时，可以将两个卡接部22朝外侧挤压，然后将汇流排4能放入安装孔11内，并按压汇流排4以抵消弹性件3的弹力的方向移动至适当位置，接着松开对卡接部22的挤压，悬臂21会带动卡接部22回弹，接着松开对汇流排4的挤压，弹性件3会驱动汇流排4朝向卡接部22移动，使得卡接部22与第一弹片31、第二弹片32对汇流排4进行限位，以实现对汇流排4进行固定。
在一实施例中，如图3所示，安装孔11的孔壁上对应悬臂21的位置凹设有避让槽12，能让悬臂21设置卡接部22的一端在主体1上具有活动空间，以便于汇流排4的安装。
可选地，卡接部22背离弹性件3的一侧面设置有导向斜面，导向斜面朝向安装孔11的内部向下倾斜设置，以便于汇流排4的安装。
在一实施例中，卡接部22的截面呈梯形结构，其中，呈梯形的卡接部22的下底与悬臂21连接，且卡接部22的下底所形成的面为平面，平面结构与汇流排4接触的面积较大，限位效果较好，能提高固定件2对汇流排4限位的稳定性。
可选地，主体1、固定件2和弹性件3三者中至少一者采用工程塑料合金制成，工程塑料合金又称PC+ABS，该材料具有优良耐热性、尺寸稳定性、耐冲击性、加工流动性的特点。本实施例中，主体1、固定件2和弹性件3均采用工程塑料合金一体制成。
一些实施例中，如图1和图2所示，在安装孔11的孔壁上凸出设置有限位板5，限位板5与卡接部22沿第一方向间隔设置，限位板5设置为防止第一弹片31和第二弹片32被汇流排4过度挤压而损坏。在安装时，需要挤压汇流排4，而汇流排4会挤压第一弹片31和第二弹片32，当汇流排4挤压第一弹片31和第二弹片32至一定位置时，汇流排4会与限位板5抵接，使得汇流排4无法继续按压第一弹片31和第二弹片32，从而起到保护弹片的作用。
本实施例中，主体1上沿第三方向间隔设置有多个安装孔11，第三方向与第一方向呈夹角设置，以使该绝缘支架能同时对多个汇流排4进行固定，从而对多个电池6进行电连接。示例性地，安装孔11设置二十个，其中，十个安装孔11为一组安装组，两个安装组设置在主体1沿其的宽度方向的相对两侧，其中，主体1的宽度方向为第二方向，安装组中的安装孔11沿主体1的长度方向排布，也就是沿第三方向排布。因此该绝缘支架可以同时对二十个汇流排4进行固定。
如图5和图6所示，本申请还公开一种电池模组，包括多个电池6、多个汇流排4和上述任意实施例的绝缘支架，所有的电池6沿第三方向排布，绝缘支架设置在多个电池6设置有极柱61的一侧面，每个绝缘支架的安装孔11内设置有一个汇流排4，汇流排4分别连接相邻两个电池6的极柱61。该绝缘支架通过在主体1上设置用于安装汇流排4的安装孔11，并通过固定件2和弹性件3对汇流排4进行限位，且弹性件3始终具有驱动汇流排4朝向抵紧固定件2的移动趋势，使得安装孔11内具有调节空间，让该绝缘支架能对不同厚度的汇流排4进行固定，而不同的型号的电池6所设计的极柱61高度不同，而不同极柱61所连接的汇流排4的尺寸不同，因此该支架组件能适用于不同型号的电池6，因对电池6高度差异的适配兼容性高，无需专门开模设计不同的绝缘支架，降低了电池模组的制造成本。
本实施例中，如图6所示，汇流排4上设置有卡槽41，卡接部22卡设在卡槽41内，通过卡接部22与卡槽41配合，提高了汇流排4在安装腔内的稳定性，从而提高了整个支架组件的稳定性。在一实施例中，卡槽41在汇流排4上沿第二方向贯穿设置，位于两侧的卡接件的卡接部22卡设在卡槽41的两端。

Claims (22)

  1. 一种绝缘支架，设置为安装与电池极柱连接的汇流排(4)，其中所述绝缘支架包括主体(1)、固定件(2)和弹性件(3)，所述主体(1)沿第一方向贯穿设置有至少一个安装孔(11)，所述至少一个安装孔(11)设置为安装所述汇流排(4)，每个所述安装孔(11)的孔壁上间隔设置有所述固定件(2)和所述弹性件(3)，所述固定件(2)设置为与所述汇流排(4)的第一侧面抵接，所述弹性件(3)设置为与所述汇流排(4)的第二侧面抵接，所述弹性件(3)始终具有驱动所述汇流排(4)朝向抵紧所述固定件(2)的移动趋势。
  2. 根据权利要求1所述的绝缘支架，其中，所述弹性件(3)包括第一弹片(31)和第二弹片(32)，所述第一弹片(31)和所述第二弹片(32)间隔设置在所述安装孔(11)的侧壁上，且所述第一弹片(31)和所述第二弹片(32)均设置为与所述汇流排(4)抵接。
  3. 根据权利要求2所述的绝缘支架，其中，所述第一弹片(31)和所述第二弹片(32)设置在所述安装孔(11)呈夹角连接的两侧壁上；或，
    所述第一弹片(31)和所述第二弹片(32)设置在所述安装孔(11)相对的两个侧壁上。
  4. 根据权利要求3所述的绝缘支架，其中，所述第二弹片(32)设置在所述安装孔(11)的相邻两个侧壁的拐角处。
  5. 根据权利要求2-4任一项所述的绝缘支架，其中，所述第一弹片(31)包括第一本体(311)，所述第一本体(311)的第一端与所述安装孔(11)的孔壁连接，所述第一本体(311)的第二端朝向所述安装孔(11)的内部延伸，且所述第一本体(311)的第二端朝向所述固定件(2)凸出设置有用于抵接所述汇流排(4)的第一抵接部(312)。
  6. 根据权利要求5所述的绝缘支架，其中，所述第一抵接部(312)包括第一片体(3121)和第二片体(3122)，第一片体(3121)与所述第一本体(311)呈夹角连接，所述第二片体(3122)与所述第一片体(3121)呈夹角连接，所述第二片体(3122)设置为与所述汇流排(4)抵接，所述第一本体(311)与所述第二片体(3122)沿所述第一方向间隔设置。
  7. 根据权利要求6所述的绝缘支架，其中，所述第一本体(311)与所述第一片体(3121)的连接位置及所述第一片体(3121)与所述第二片体(3122)的连接位置两者中至少一者设置有倒角。
  8. 根据权利要求2-4任一项所述的绝缘支架，其中，所述第二弹片(32)包括第二本体(321)，所述第二本体(321)的第一端与所述安装孔(11)的孔壁连接，所述第二本体(321)的第二端朝向所述安装孔(11)的内部延伸， 所述第二本体(321)的第二端朝向所述固定件(2)凸出设置有用于抵接所述汇流排(4)的第二抵接部(322)。
  9. 根据权利要求8所述的绝缘支架，其中，所述第二抵接部(322)包括第三片体(3221)和第四片体(3222)，所述第三片体(3221)与所述第二本体(321)呈夹角连接，所述第四片体(3222)与所述第三片体(3221)呈夹角连接，所述第四片体(3222)设置为与所述汇流排(4)抵接，所述第二本体(321)与所述第四片体(3222)沿所述第一方向间隔设置。
  10. 根据权利要求9所述的绝缘支架，其中，所述第二本体(321)与所述第三片体(3221)的连接位置及所述第四片体(3222)与所述第三片体(3221)的连接位置两者中至少一者设置有倒角。
  11. 根据权利要求2-4任一项所述的绝缘支架，其中，所述第一弹片(31)与所述主体(1)一体成型。
  12. 根据权利要求2-4、11中任一项所述的绝缘支架，其中，所述第二弹片(32)与所述主体(1)一体成型。
  13. 根据权利要求2-4任一项所述的绝缘支架，其中，所述第一弹片(31)设置有两个，两个所述第一弹片(31)沿所述安装孔(11)的中心线对称设置在所述安装孔(11)的同一侧壁上。
  14. 根据权利要求2-4、13中任一项所述的绝缘支架，其中，所述第二弹片(32)设置有两个，两个所述第二弹片(32)沿所述安装孔(11)的中心线对称设置在所述安装孔(11)相对两侧壁上。
  15. 根据权利要求1-4任一项所述的绝缘支架，其中，所述固定件(2)包括悬臂(21)和卡接部(22)，所述悬臂(21)与所述主体(1)连接，所述卡接部(22)设置在所述悬臂(21)远离所述主体(1)的一端，所述卡接部(22)朝向所述安装孔(11)的内部凸出设置，所述卡接部(22)设置为与所述汇流排(4)背离所述弹性件(3)的一侧面抵接。
  16. 根据权利要求15所述的绝缘支架，其中，所述安装孔(11)的孔壁上对应所述悬臂(21)的位置凹设有避让槽(12)。
  17. 根据权利要求1-4任一项所述的绝缘支架，其中，至少在所述安装孔(11)沿第二方向的相对两侧设置有所述固定件(2)，所述第二方向与所述第一方向呈夹角设置。
  18. 根据权利要求1-4任一项所述的绝缘支架，其中，所述主体(1)、所述固定件(2)和所述弹性件(3)三者中至少一者采用工程塑料合金制成。
  19. 根据权利要求1-4任一项所述的绝缘支架，其中，所述安装孔(11)的孔壁凸出设置有限位板(5)，所述限位板(5)与所述固定件(2)沿所述第一方向间隔设置。
  20. 根据权利要求1-4任一项所述的绝缘支架，其中，所述主体(1)上沿第三方向间隔设置有多个所述安装孔(11)，所述第三方向与所述第一方向呈夹角设置。
  21. 一种电池模组，包括多个电池(6)和多个汇流排(4)，所述多个电池(6)沿第三方向排布，所述电池模组还包括如权利要求1-20任一项所述的绝缘支架，所述绝缘支架设置在所述多个电池(6)设置有极柱(61)的一侧面，每个所述绝缘支架的安装孔(11)内设置有一个所述汇流排(4)，所述汇流排(4)分别连接相邻两个电池(6)的极柱(61)。
  22. 根据权利要求21所述的电池模组，其中，所述汇流排(4)设置有卡槽(41)，所述绝缘支架的固定件(2)的卡接部(22)卡设在所述卡槽(41)内。
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