A CCS housing structure, a battery pack and a battery pack

Abstract

The utility model relates to a power battery field especially CCS shell structure, battery pack and battery package. CCS shell structure includes busbar, top cap or insulating support unit, and busbar is located the one side of battery monomer and is provided with pole; top cap is used for setting in the top of battery monomer;Insulating support unit sets up between busbar and top cap, and insulating support unit is provided with a plurality of avoiding hole for avoiding the explosion -proof valve of battery monomer, and along the length extension direction of insulating support unit, sets up the blocking piece between adjacent two avoiding holes. Busbar is supported by insulating support unit, and insulating support unit is provided with avoiding hole, thereby ensuring that when explosion -proof valve opens, any obstacle will not block its normal work, and electrical failure risk is avoided. When high temperature material is sprayed after thermal runaway of battery monomer, the blocking piece can block high temperature material to prevent high temperature material from splashing to adjacent battery monomer.

Description

Technical Field

[0001] This utility model relates to the field of power batteries, and in particular to a CCS housing structure, battery pack and battery stack. Background Technology

[0002] A CCS (Cell Connection System), also known as an integrated busbar or battery cover assembly, is a system that integrates battery connections onto a single board. It primarily integrates components such as busbars and control circuits (voltage and temperature acquisition) within a battery pack, forming a single module. Its main functions include high-voltage series and parallel connection of individual battery cells, battery temperature sampling, individual battery voltage sampling, and overcurrent protection, providing crucial data for the BMS (Battery Management System). A CCS mainly consists of signal acquisition components, plastic structural parts, and busbars.

[0003] However, inside the battery box, when a single battery cell experiences thermal runaway, it can easily affect adjacent battery cells.

[0004] Therefore, there is an urgent need for a CCS shell structure to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to propose a CCS housing structure, battery pack, and battery module that can prevent thermal runaway of individual battery cells from affecting adjacent battery cells.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A CCS shell structure, comprising:

[0008] Busbar, the busbar being used to connect the terminals of adjacent battery cells;

[0009] A top cover is provided on top of the battery cell;

[0010] An insulating support unit is disposed between the busbar and the top cover. The insulating support unit is provided with a plurality of clearance holes for avoiding the explosion-proof valves of the battery cells. A blocking member is provided between two adjacent clearance holes along the length extension direction of the insulating support unit.

[0011] A battery pack includes battery cells and a CCS housing structure as described in any of the above embodiments, wherein a plurality of battery cells are arranged in an array, and the CCS housing structure is disposed on the side of the battery cells having terminals.

[0012] A battery pack comprising the battery pack described in the above-described scheme.

[0013] This utility model has at least the following beneficial effects:

[0014] The CCS housing structure, battery pack, and battery module provided in this embodiment have a busbar connected to the terminal posts of the individual battery cells for current collection and distribution. The busbar is supported by an insulating support unit, which has clearance holes corresponding to the positions of the explosion-proof valves on the individual battery cells. This ensures that no obstruction will hinder the normal operation of the explosion-proof valves when they are open, thus avoiding the risk of electrical failure. The insulating support unit is equipped with a blocking component positioned between two adjacent clearance holes. This arrangement allows the blocking component to prevent the high-temperature material from splashing onto adjacent battery cells when a thermal runaway occurs in a battery cell. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model 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 the content of the embodiments of this utility model and these drawings without creative effort.

[0016] Figure 1 A cross-sectional view of the battery pack provided in an embodiment of this utility model;

[0017] Figure 2 This is a schematic diagram of the battery pack provided in an embodiment of the present utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the insulating support unit provided in an embodiment of the present utility model;

[0019] Figure 4 for Figure 3 A magnified view of a section at point A in the middle;

[0020] Figure 5 for Figure 2 A magnified view of a section at point B in the middle;

[0021] Figure 6 for Figure 1 A magnified view of a section at point C.

[0022] In the picture:

[0023] 1. Busbar; 11. Second limiting structure; 12. Bending part; 13. Connecting hole; 2. Top cover; 3. Insulation support unit; 31. Clearance hole; 32. Blocking component; 33. Support protrusion; 331. Clearance groove; 34. Cable routing groove; 35. Binding hole; 36. Welding hole; 37. First limiting structure; 38. Separating protrusion; 39. Protective protrusion; 4. Flame retardant component; 10. Battery cell; 20. Box; 30. Wiring harness; 40. Cable tie. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0025] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0027] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0028] This utility model provides a CCS housing structure, a battery pack, and a battery module, aiming to effectively solve the problem that thermal runaway of a single battery cell can easily affect adjacent battery cells.

[0029] like Figures 1 to 5 As shown, the CCS housing structure includes a busbar 1 and a top cover 2 or an insulating support unit 3. The busbar 1 is used to connect the terminals of adjacent battery cells 10. Specifically, the busbar 1 is located on the side of the battery cell 10 where the terminals are provided, and the busbar 1 is responsible for collecting and distributing current. The top cover 2 is used to be installed on the top of the battery cell 10. The insulating support unit 3 is located between the busbar 1 and the top cover 2. The insulating support unit 3 is provided with multiple clearance holes 31 for avoiding the explosion-proof valves of the battery cells 10. Along the length extension direction of the insulating support unit 3, a blocking member 32 is provided between two adjacent clearance holes 31.

[0030] In the CCS housing structure provided in this embodiment, the busbar 1 is connected to the terminal post of the battery cell 10 for collecting and distributing current. The busbar 1 is supported by the insulating support unit 3, which has clearance holes 31 that correspond to the positions of the explosion-proof valves on the battery cell 10. This ensures that no obstruction will hinder the normal operation of the explosion-proof valve when it is open, thus avoiding the risk of electrical failure. The insulating support unit 3 is provided with a blocking member 32, which is positioned between two adjacent clearance holes 31. This arrangement allows the blocking member 32 to block the high-temperature material ejected after thermal runaway of the battery cell 10, preventing the high-temperature material from splashing onto adjacent battery cells 10.

[0031] It should be noted that the material of the insulating support unit 3 is an insulating material, such as insulating paint, plastic, synthetic rubber, etc., and the material of the insulating support unit 3 is not specifically limited. In addition, the manufacturing process of the insulating support unit 3 can be made by injection molding, stamping, welding, etc., to ensure the quality and performance of the insulating support unit 3, and the manufacturing process of the insulating support unit 3 is not specifically limited.

[0032] The explosion-proof valve is an important safety component in the battery cell 10. Its main function is to automatically open when the internal pressure of the battery cell 10 rises abnormally (such as due to overcharging, short circuit, high temperature, etc.) to release the internal pressure and prevent the battery cell 10 from exploding.

[0033] In some embodiments, along the length of the insulating support unit 3, the projection of the clearance hole 31 onto the first sidewall of the blocking member 32 is located within the area enclosed by the first sidewall of the blocking member 32.

[0034] Understandably, the area of ​​the first sidewall of the blocking member 32 is larger than the projected area of ​​the clearance hole 31 on the first sidewall. This allows the high-temperature material ejected directly from the explosion-proof valve by the thermally runaway battery cell 10 to be directly blocked on one side of the blocking member 32.

[0035] In some embodiments, the height of the blocking member 32 ranges from 4mm to 7mm. If the height of the blocking member 32 is too low, it will not be able to effectively block the high-temperature material after it is ejected. If the height of the blocking member 32 is too high, the overall height of the battery pack will increase, and the space occupied will increase. Therefore, controlling the height of the blocking member 32 to 4mm to 7mm can effectively block most of the high-temperature material ejected by the explosion-proof valve.

[0036] For example, the height of the blocking member 32 can be 4mm, 5mm, 6mm, or 7mm, and is not specifically limited in this embodiment. When the height of the blocking member 32 is 4mm, it can shield the high-temperature material ejected from the explosion-proof valve while preventing an excessive increase in the overall height of the battery pack. When the height of the blocking member 32 is 7mm, it can effectively intercept the high-temperature material ejected from the explosion-proof valve, preventing the high-temperature material from affecting the normal operation of adjacent battery cells 10.

[0037] In some embodiments, the ratio of the width of the blocking member 32 to the width of the clearance hole 31 is in the range of 1:1 to 1.3:1.

[0038] Understandably, the width of the blocking member 32 should not be less than the width of the clearance hole 31. The width of the blocking member 32 is greater than or equal to the width of the clearance hole 31, but the width of the blocking member 32 cannot be infinitely large, and should ensure that the blocking member 32 does not affect the arrangement of wires or other structures.

[0039] For example, the ratio of the width of the blocking member 32 to the width of the clearance hole 31 is in the range of 1.1:1, 1.2:1, or 1.3:1. When the ratio of the width of the blocking member 32 to the width of the clearance hole 31 is 1.1:1, the blocking member 32 can block a large amount of high-temperature material. When the ratio of the width of the blocking member 32 to the width of the clearance hole 31 is 1.3:1, the probability of the blocking member 32 blocking high-temperature material can be increased, further improving the safety of adjacent battery cells 10.

[0040] Through the above technical solution, the width of the blocking member 32 and the width of the clearance hole 31 are set in a ratio, so that different explosion-proof valves correspond to different blocking members 32. This can prevent the high-temperature material ejected from the explosion-proof valve from splashing from the side of the blocking member 32 to the adjacent battery cell 10.

[0041] In some embodiments, the blocking member 32 is a rectangular protrusion or a cylindrical protrusion.

[0042] The rectangular protrusions can block high-temperature materials, preventing them from splashing again after hitting the blocking member 32 and entering the adjacent battery cell 10. The cylindrical protrusions can also block high-temperature materials, and their reduced volume prevents a significant increase in the overall weight of the insulation support unit 3.

[0043] like Figure 6 As shown, in some embodiments, a flame-retardant element 4 is provided between the insulating support unit 3 and the top cover 2.

[0044] For example, the material of the flame retardant component 4 can be a thermoplastic polymer material, a fiber-reinforced composite material, or a composite structural material.

[0045] The flame-retardant component 4 can actively suppress the spread of flames and heat and passively block fire sources and provide physical protection, thus inhibiting the spread of flames and blocking heat transfer. In addition, the flame-retardant component 4 can also prevent high-temperature substances from being sprayed onto the top cover 2, causing the top cover 2 to melt or burn.

[0046] In some embodiments, the insulating support unit 3 is bonded to the flame-retardant component 4.

[0047] Specifically, the insulating support unit 3 is bonded to the flame-retardant component 4 with adhesive, thus ensuring a firm connection between the two. This simplifies the structure of the insulating support unit 3 and the flame-retardant component 4, and also prevents a significant increase in the overall weight of the CCS housing structure.

[0048] Of course, in some other embodiments, the insulating support unit 3 and the flame-retardant component 4 can be connected by a snap-fit ​​mechanism.

[0049] For example, the insulating support unit 3 is provided with a snap-fit ​​hole, and the flame retardant 4 is provided with a snap-fit ​​post. The end of the snap-fit ​​post facing away from the flame retardant 4 extends out of the snap-fit ​​hole and snaps into the snap-fit ​​hole, thereby achieving the purpose of fixing the insulating support unit 3 and the flame retardant 4 together.

[0050] The snap-fit ​​post includes a connecting rod and elastic claws, wherein the elastic claws are evenly distributed on the outer peripheral wall of the connecting rod along its circumference. After the elastic claws pass through the positioning holes, they fix the flame retardant to the insulating support unit 3.

[0051] The elastic claws and the connecting post are integrally formed. For example, there are three elastic claws, which allows the elastic claws to be securely fastened in the positioning holes.

[0052] In some other embodiments, the flame retardant 4 is bonded to the inner wall of the top cover 2 facing the manifold 1.

[0053] When bonding the flame-retardant component 4 to the top cover 2, the adhesive is directly applied to the flame-retardant component 4 or the top cover 2, and the flame-retardant component 4 is directly attached to the top cover 2 to achieve the connection between the two.

[0054] This ensures a secure connection between the top cover 2 and the flame-retardant component 4. It simplifies the structure of the top cover 2 and the flame-retardant component 4, and also prevents a significant increase in the overall weight of the CCS housing structure.

[0055] In some embodiments, the insulating support unit 3 is provided with a support protrusion 33 for supporting the flame-retardant component 4.

[0056] The length direction of the support protrusion 33 is in the same direction as the length direction of the insulating support unit 3. The flame retardant component 4 can be a flame retardant plate, and the length direction of the flame retardant plate is in the same direction as the length direction of the insulating support unit 3.

[0057] There are multiple support protrusions 33, which are arranged at a predetermined distance on the insulating support unit 3. Two support protrusions 33 correspond to one battery cell 10 (or a battery pack). Multiple battery cells 10 are arranged in a row, and each row of battery cells 10 forms a battery pack. The same insulating support unit 3 is provided with support protrusions 33 according to the corresponding battery pack. In addition, two support protrusions 33 can be arranged on both sides of the explosion-proof valve, so as to avoid the flame retardant plate collapsing and blocking any explosion-proof valve, thus ensuring the explosion-proof valve.

[0058] In some embodiments, the height of the support protrusion 33 is less than or equal to the height of the blocking member 32.

[0059] With this configuration, the flame-retardant component 4 is directly supported by the blocking component 32. The blocking component 32 and the flame-retardant component 4 work together to separate the area between two adjacent explosion-proof valves, preventing the high-temperature material ejected from the explosion-proof valve from passing through the area between the blocking component 32 and the flame-retardant component 4 and entering the area above the adjacent battery cell 10. This prevents the high-temperature material from being sprayed onto the surface of the adjacent explosion-proof valve, causing the temperature inside and outside the explosion-proof valve to rise and affecting the operation of the battery cell 10.

[0060] Normally, the flame-retardant component 4 is supported by both the blocking component 32 and the supporting protrusion 33. That is, the supporting protrusion 33 and the blocking component 32 are at the same height. This can prevent large-area deformation of the flame-retardant component 4. In addition, the blocking component 32 and the supporting protrusion 33 support the flame-retardant component 4 at the same time to prevent the partial collapse of the flame-retardant component 4 from affecting the busbar 1.

[0061] In some embodiments, support protrusions 33 are disposed on both sides of the busbar 1. The support protrusions 33 are located on both sides of the busbar 1 to prevent the flame retardant 4 from partially collapsing and coming into contact with the busbar 1. If the busbar 1 bears a large weight, it may break from the pole. Therefore, the support protrusions 33 located on both sides of the busbar 1 can support the flame retardant 4 to prevent the flame retardant 4 from pressing down on the busbar 1. In addition, the support protrusions 33 can also block the high-temperature substances sprayed by the explosion-proof valve to prevent the high-temperature substances from splashing onto the surface of the busbar 1 and affecting the use of the busbar 1.

[0062] like Figure 4 and Figure 5 As shown, in some embodiments, the support protrusion 33 and the blocking member 32 are set at a preset distance, and a wiring groove 34 is formed between the support protrusion 33 and the blocking member 32.

[0063] The preset distance between the support protrusion 33 and the blocking member 32 is limited according to the width of the battery cell 10. This can prevent the side wall of the support protrusion 33 from squeezing the busbar 1 and ensure the area of ​​the welding surface between the busbar 1 and the terminal post.

[0064] Furthermore, a first groove is provided between the support protrusion 33 and the blocking member 32, that is, the plane where the explosion-proof valve hole is located is higher than the bottom of the first groove. In this way, the first groove, the support protrusion 33 and the blocking member 32 form the above-mentioned wiring groove 34. This arrangement can limit the wiring harness 30 and prevent the wiring harness 30 from falling towards the busbar 1 or the explosion-proof valve after the CCS housing structure is subjected to strong vibration.

[0065] It should be noted that the length extension direction of the support protrusion 33 is in the same direction as the arrangement direction of the battery cells 10, so as to connect the busbar 1 to two adjacent battery cells 10. The length of the support protrusion 33 is equal to the length of the insulating support unit 3, or the length of the support protrusion 33 is slightly less than the length of the insulating support unit 3, so as to limit the position of the wire harness 30 and prevent the wire harness 30 from shifting relative to the insulating support unit 3 after being subjected to vibration and bumps, thus achieving the purpose of limiting the position of the wire harness 30.

[0066] In some embodiments, the cable tray 34 is provided with binding holes 35. After the cable tie 40 passes through the binding holes 35, it binds and fixes the wire harness 30, thereby fixing the wire harness 30 and preventing the wire harness 30 from coming off the cable tray 34.

[0067] Specifically, the bottom of the first groove is provided with binding holes 35. One end of the cable tie 40 passes through the two binding holes 35 and is located on the same side of the insulating support unit 3 with the other end of the cable tie 40, thereby fixing the wire harness 30.

[0068] In some embodiments, the support protrusion 33 is provided with a relief groove 331 on the side wall facing the busbar 1. The width of the relief groove 331 is less than the thickness of the support protrusion 33. This can prevent the relief from penetrating the support protrusion 33 and causing high-temperature substances to splash onto the surface of the busbar 1 through the relief groove 331, resulting in an increase in the temperature of the busbar 1.

[0069] The clearance groove 331 can be arc-shaped or elongated. The clearance groove 331 can avoid the manipulator holding the busbar 1, and prevent the side wall of the support protrusion 33 from interfering with the manipulator and causing the manipulator to collide with the support protrusion 33, which would cause the busbar 1 to shift in position during placement.

[0070] The position of the clearance groove 331 can be limited according to the placement of the robotic arm's starting fingers, but is not specifically limited in this embodiment.

[0071] In addition, the insulating support unit 3 has a welding hole 36 through which the pole post passes. The pole post passes through the welding hole 36 and is welded to the busbar 1. The insulating support unit 3 supports the busbar 1 to prevent the busbar 1 from being suspended without support.

[0072] In some embodiments, the insulating support unit 3 further includes a first limiting structure 37, and the busbar 1 is provided with a second limiting structure 11. The first limiting structure 37 and the second limiting structure 11 cooperate to position the busbar 1 on the insulating support unit 3.

[0073] This arrangement facilitates the assembly of busbar 1 and insulating support unit 3. Furthermore, the positioning of busbar 1 on insulating support unit 3 also prevents busbar 1 from shifting its position after being subjected to significant bumps.

[0074] In some embodiments, of the first limiting structure 37 and the second limiting structure 11, one is a connecting post and the other is a connecting hole 13. The connecting post passes through the connecting hole 13 to achieve the purpose of positioning the busbar 1.

[0075] Normally, the first limiting structure 37 is a connecting post, and the second limiting structure 11 is a connecting hole 13. That is, the insulating support unit 3 is provided with a connecting post, and the busbar 1 is provided with a connecting hole 13. The connecting post is set directly opposite the clearance groove 331, which can realize the precise placement of the robot and improve the assembly efficiency of the busbar 1 and the insulating support unit 3.

[0076] It should be noted that there are no special limitations on the diameter of the connecting column and the diameter of the connecting hole 13. The diameter of the connecting column and the diameter of the connecting hole 13 should meet the size requirements of the handrail manifold 1. They should not be too large, as this will affect the connection of the manifold 1. They should also not be too small, as this will result in low strength of the connecting column and easy breakage.

[0077] In some embodiments, the first limiting structure 37 is a connecting post, and the connecting post is provided with snap-fit ​​fins. The snap-fit ​​fins are evenly distributed on the outer periphery of the connecting shaft, so that each snap-fit ​​fin is subjected to the same compressive force, thereby improving the service life of each snap-fit ​​fin.

[0078] For example, the number of snap-fit ​​fins can be one, two, three, or four; this embodiment does not impose a specific limitation. In other embodiments, the number is not limited to these quantities, and the specific number of snap-fit ​​fins is set according to the diameter of the connecting post.

[0079] In some embodiments, the insulating support unit 3 has a separating protrusion 38 between two adjacent welding holes 36, and the height of the separating protrusion 38 is greater than the thickness of the busbar 1. In this way, the separating protrusion 38 can separate two adjacent busbars 1.

[0080] It should be noted that the dividing protrusion 38 includes two sub-protrusions, which are arranged vertically, that is, the two sub-protrusions are arranged along the height direction of the busbar 1. The dividing protrusion 38 is a one-piece molded structure, which facilitates the manufacturing and installation of the dividing protrusion 38 and eliminates the need for the two sub-protrusions to be fixedly connected.

[0081] like Figure 5 As shown, in some embodiments, the middle part of a busbar 1 arches upward to form an arched bend 12. The insulating support unit 3 is provided with protective components, which are located on both sides of the bend 12 along the width direction of the busbar 1. When the busbar 1 is welded to the terminal post of the battery cell 10, the battery cell 10 will undergo slight expansion during normal charging and discharging. Along the arrangement direction of the battery cells 10, the positions of adjacent battery cells 10 will change. The arched bend 12 can absorb stress deformation, effectively preventing stress pulling on the welded area due to displacement of the battery cells 10. The insulating support unit 3 is provided with protective components, which are located at both ends of the arched bend 12, and the height of the protective components is higher than the height of the bend 12.

[0082] To protect the bent portion 12, the insulating support unit 3 is provided with protective protrusions 39, which are located on both sides of the bent portion 12. The protective protrusions 39 can support the flame-retardant component 4 and prevent the flame-retardant component 4 from pressing on the bent portion 12.

[0083] The busbar 1 is also provided with connection holes 13, that is, the busbar 1 with the bent part 12 has two connection holes 13, so that the data acquisition chip can pass through the connection hole 13 and connect to the cover plate of the battery cell 10 to detect the temperature and other related information of the battery cell 10.

[0084] The above-described design protects the bent portion 12. Since the height of the protective component is greater than the height of the bent portion 12, it supports the top cover 2 located on top of the busbar 1, preventing partial collapse of the top cover 2 from short-circuiting the busbar 1. Furthermore, the protective component also prevents the busbar 1 from shifting due to vibration during battery pack operation.

[0085] It should be noted that the insulation support unit 3 is an integral injection-molded structure. The clearance hole 31, blocking member 32, support protrusion 33, clearance groove 331, wiring groove 34, binding hole 35, welding hole 36, first limiting structure 37, and partition protrusion 38 are formed simultaneously during the injection molding process. The blocking member 32, support protrusion 33, first limiting structure 37, and partition protrusion 38 are all hollow structures, which can reduce the overall weight of the insulation support unit 3, thereby preventing an excessive increase in the overall weight of the battery pack.

[0086] This embodiment also provides a battery pack, including a battery cell 10 and a CCS housing structure provided in this embodiment. Multiple battery cells 10 are arranged in a row, and the CCS housing structure is disposed on the side of the battery cell 10 with the terminal post.

[0087] Multiple battery cells with similar capacity and internal resistance are connected in series or in parallel to form a battery pack.

[0088] In this embodiment, the battery pack has a busbar 1 connected to the terminal post of the battery cell 10 for collecting and distributing current. The busbar 1 is supported by an insulating support unit 3. The insulating support unit 3 has clearance holes 31 that correspond to the positions of the explosion-proof valves on the battery cells 10, thereby ensuring that no obstruction will hinder the normal operation of the explosion-proof valves when they are open, thus avoiding the risk of electrical failure. The insulating support unit 3 is provided with a blocking member 32, which is positioned between two adjacent clearance holes 31. This arrangement allows the blocking member 32 to block the high-temperature material ejected after thermal runaway of the battery cell 10, preventing the high-temperature material from splashing onto adjacent battery cells 10.

[0089] Because it includes the CCS housing structure described above, the battery pack of this utility model embodiment has all the advantages and beneficial effects of the above embodiments, which will not be repeated here.

[0090] This embodiment also provides a battery pack, including the battery pack provided in this embodiment.

[0091] In this embodiment, the battery pack has a busbar 1 connected to the terminal post of the battery cell 10 for collecting and distributing current. The busbar 1 is supported by an insulating support unit 3. The insulating support unit 3 has clearance holes 31 that correspond to the positions of the explosion-proof valves on the battery cells 10, thereby ensuring that no obstruction will hinder the normal operation of the explosion-proof valves when they are open, thus avoiding the risk of electrical failure. The insulating support unit 3 is provided with a blocking member 32, which is positioned between two adjacent clearance holes 31. This arrangement allows the blocking member 32 to block the high-temperature material ejected after thermal runaway of the battery cell 10, preventing the high-temperature material from splashing onto adjacent battery cells 10.

[0092] like Figure 1 As shown, the battery pack also includes a housing 20. The battery pack provided in this embodiment is housed in the housing 20, and a top cover 2 is provided on the top of the housing 20.

[0093] It is understood that the battery pack includes a battery pack composed of multiple battery cells 10 connected in series and / or in parallel, a battery management system (BMS), a thermal management system, an electrical connection system (high-voltage / low-voltage connectors, wiring harnesses, etc.), structural components (casing, brackets, etc.), and protective components, etc., and the above components are placed in the housing 20 and sealed with a cover plate to form a complete functional unit that can directly output electrical energy.

[0094] Battery packs, as a type of rechargeable battery, are the power source for new energy vehicles.

[0095] It should be noted that the housing 20 refers to a semi-enclosed structure made of materials such as metal and plastic, which is the physical carrier of the battery pack. Its design and manufacturing must meet the safety, reliability and functionality requirements of the battery pack in different usage scenarios.

[0096] Since it includes the battery pack described above, the battery pack of this utility model embodiment has all the advantages and beneficial effects of the above embodiments, which will not be repeated here.

[0097] Furthermore, the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A CCS housing structure, characterized by, include: Busbar (1), the busbar (1) is used to connect the terminals of adjacent battery cells (10); Top cover (2), for being disposed on the top of the battery cell (10); An insulating support unit (3) is disposed between the busbar (1) and the top cover (2). The insulating support unit (3) is provided with a plurality of clearance holes (31) for avoiding the explosion-proof valve of the battery cell (10). Along the length extension direction of the insulating support unit (3), a blocking member (32) is provided between two adjacent clearance holes (31).

2. The CCS housing structure of claim 1, wherein, Along the length of the insulating support unit (3), the projection of the clearance hole (31) onto the first sidewall of the blocking member (32) is located within the area enclosed by the first sidewall of the blocking member (32).

3. The CCS housing structure of claim 2, wherein, The height of the blocking element (32) ranges from 4mm to 7mm.

4. A CCS housing structure according to claim 2 or 3, characterised in that, The ratio of the width of the blocking member (32) to the width of the clearance hole (31) is in the range of 1.1:1 to 1.3:

1.

5. The CCS housing structure of claim 2, wherein, The blocking element (32) is a rectangular protrusion or a cylindrical protrusion.

6. The CCS enclosure structure of any one of claims 1-5, wherein, A flame-retardant component (4) is provided between the insulating support unit (3) and the top cover (2).

7. The CCS enclosure structure of claim 6, wherein, The insulating support unit (3) is bonded to the flame-retardant component (4); or, The flame-retardant component (4) is bonded to the inner wall of the top cover (2) facing the manifold (1).

8. The CCS enclosure structure of claim 6, wherein, The insulating support unit (3) is provided with a support protrusion (33) for supporting the flame retardant component (4).

9. The CCS enclosure structure of claim 8, wherein, The height of the support protrusion (33) is less than or equal to the height of the blocking member (32).

10. The CCS enclosure structure of claim 8, wherein, The support protrusions (33) are disposed on both sides of the busbar (1).

11. The CCS enclosure structure of claim 8, wherein, The support protrusion (33) and the blocking member (32) are set at a preset distance, and a wiring groove (34) is formed between the support protrusion (33) and the blocking member (32).

12. A battery pack, characterized by The battery cell (10) includes a CCS housing structure as described in any one of claims 1-11, wherein a plurality of the battery cells (10) are arranged in a row, and the CCS housing structure is disposed on the side of the battery cell (10) having a terminal post.

13. A battery pack, characterized by Includes the battery pack as described in claim 12.

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