Protective structure and protective battery pack

Abstract

The invention discloses a protection structure and a protection battery pack, and relates to the technical field of battery pack safety protection, the protection structure comprises a protection shell and a protection assembly, a mounting groove is formed in the protection shell, and the mounting groove is used for mounting the battery pack; the protection assembly is connected with the protection shell, and the protection assembly is located at a notch of the mounting groove and can shield the notch of the mounting groove; wherein the protection assembly comprises a connecting piece and a protection piece, the connecting piece is connected with the protection piece, the connecting piece is connected with the protection shell, and the protection piece is located at the end, away from the protection shell, of the connecting piece. According to the technical scheme provided by the invention, the problems that in the driving process of the new energy automobile, the lithium battery pack at the bottom is possibly subjected to accidents such as gravel impact and bottom supporting collision, so that the battery pack is damaged, and even serious safety accidents such as battery short circuit and fire are possibly caused can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of battery pack safety protection, and particularly relates to a protection structure and a protected battery pack. Background Art

[0002] As a core power component of new energy vehicles, in recent years, with the global high attention to environmental protection and sustainable development and the rapid development of the new energy vehicle market, the importance of the battery pack has become increasingly prominent. With advantages such as high energy density, high voltage platform, long cycle life, and relatively low self-discharge rate, the battery pack has become the preferred power source for new energy vehicles, capable of providing lasting and stable power support for the vehicle, effectively meeting the requirements of new energy vehicles for cruising range and performance.

[0003] However, in practical applications, new energy lithium battery packs face many challenges, especially in terms of safety protection. Since new energy vehicles may encounter accidental situations such as gravel impact at the bottom and bottoming collision during driving, the protection structure at the bottom of the battery pack is crucial. Once the protection fails, it may not only cause damage to the battery pack, but even lead to serious safety accidents such as battery short circuit and fire, posing a great threat to the lives and property of the driver and passengers. Summary of the Invention

[0004] The main object of the present invention is to propose a protection structure and a protected battery pack, aiming to solve the problem that during the driving of new energy vehicles, the lithium battery pack at the bottom may encounter accidental situations such as gravel impact and bottoming collision, resulting in damage to the battery pack, and even serious safety accidents such as battery short circuit and fire.

[0005] To achieve the above object, the protection structure proposed by the present invention includes a protective shell and a protection component. An installation groove is formed in the protective shell, and the installation groove is used for installing the battery pack; the protection component is connected to the protective shell, the protection component is located at the notch of the installation groove, and can block the notch of the installation groove; wherein, the protection component includes a connecting piece and a protection piece, the connecting piece is connected to the protection piece, the connecting piece is connected to the protective shell, and the protection piece is located at the end of the connecting piece away from the protective shell.

[0006] In an embodiment, a protection cavity is formed by enclosing the connecting piece and the protection piece, the protection component has a buffer member, the buffer member connects the connecting piece and the protection piece, and the buffer member is located in the protection cavity.

[0007] In an embodiment, a buffer cavity is formed in the buffer member, and a buffer bracket protrudes from the buffer member. The buffer bracket is located in the buffer cavity, and the buffer bracket divides the buffer cavity into at least two independent spaces.

[0008] In one embodiment, the protection component further includes at least two buffer plates, with both ends of each buffer plate connected to the buffer member and the connecting member respectively, and two opposite buffer plates being arranged at an obtuse angle.

[0009] In one embodiment, the protection component further includes at least two dampers, with both ends of each damper connected to one buffer plate and the connecting member respectively.

[0010] In one embodiment, the protection component includes a plurality of the connecting members and a plurality of protection members, each connecting member is connected to one protection member, each connecting member is connected to the protective shell, and each protection member is located at one end of the connecting member away from the protective shell.

[0011] In one embodiment, the protection structure further includes a heat dissipation component, the heat dissipation component includes a heat conducting plate and a heat dissipation bottom shell, the heat conducting plate is connected to the heat dissipation bottom shell, the heat conducting plate is connected to the protective shell and covers the notch of the installation groove, and a heat dissipation cavity is formed by enclosing the heat conducting plate and the heat dissipation bottom shell.

[0012] In one embodiment, the heat dissipation component further includes a liquid storage tank, a cooling pipe and a circulation pump, both ends of the cooling pipe are communicated with the liquid storage tank, the cooling pipe is arranged in a spiral shape in the heat dissipation cavity, and the circulation pump can make the coolant in the liquid storage tank circulate in the cooling pipe.

[0013] In one embodiment, the heat dissipation component has an air inlet and a plurality of heat dissipation fins, each heat dissipation fin is connected to the heat dissipation bottom shell, and the heat dissipation fins are arranged at intervals in the heat dissipation cavity, and the air inlet communicates the heat dissipation cavity with the outside.

[0014] The present invention also provides a protected battery pack, including a protection structure and a battery pack, and the battery pack is accommodated and limited in the installation groove.

[0015] The technical solution of the present invention realizes the effective protection of the battery pack by reasonably designing the protective shell and the protection component. Specifically, an installation groove is formed in the protective shell for fixedly installing the battery pack to ensure its stability during vehicle driving. The protection component is connected to the protective shell through the connecting member and is located at the notch of the installation groove, which can effectively block the notch and prevent external impacts, gravel, etc. from directly hitting the battery pack. The design of the connecting member not only ensures the firm connection between the protection component and the protective shell, but also enables the protection member to be flexibly installed at one end of the connecting member away from the protective shell, so as to provide reliable protection without affecting the installation and maintenance of the battery pack. By arranging the protection component at the notch of the installation groove, it can effectively prevent external objects from directly impacting the battery pack and reduce the risk of battery pack damage caused by collision, thereby improving the safety of new energy vehicles. Description of the Drawings

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0017] Figure 1 It is a schematic structural diagram of an embodiment of a protective battery pack provided by the present invention;

[0018] Figure 2 It is a schematic structural diagram of an embodiment of a protection structure provided by the present invention;

[0019] Figure 3 It is a schematic structural diagram of an embodiment of a protection component provided by the present invention;

[0020] Figure 4 It is a schematic structural diagram of another embodiment of a protection component provided by the present invention;

[0021] Figure 5 It is a schematic structural diagram of an embodiment of a heat dissipation component provided by the present invention.

[0022] Explanation of the reference numerals in the drawings:

[0023] 100, protection structure; 1, protective shell; 1a, installation groove; 2, heat dissipation component; 3, protection component; 31, connecting piece; 32, protection piece; 31a, protection cavity; 33, buffer piece; 33a, buffer cavity; 331, buffer bracket; 34, buffer plate; 35, damper; 21, heat conduction plate; 22, heat dissipation bottom shell; 2a, heat dissipation cavity; 2b, air inlet; 23, liquid storage tank; 24, cooling pipe; 25, circulation pump; 26, heat dissipation fin; 200, protective battery pack.

[0024] The realization of the object of the present invention, its functional characteristics and advantages will be further described in conjunction with the embodiments and with reference to the drawings. Specific embodiments

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0026] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present invention, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will change accordingly.

[0027] In addition, if there are descriptions such as "first", "second", etc. involved in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel scenarios. Taking "A and / or B" as an example, it includes Scenario A, or Scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0028] The present invention provides a protection structure 100.

[0029] Please refer to Figures 1 to 3 , in an embodiment of the present invention, the protection structure 100 includes a protective shell 1 and a protection component 3. An installation groove 1a is formed in the protective shell 1, and the installation groove 1a is used for installing a battery pack; the protection component 3 is connected to the protective shell 1, the protection component 3 is located at the notch of the installation groove 1a, and can block the notch of the installation groove 1a; wherein, the protection component 3 includes a connecting member 31 and a protection member 32, the connecting member 31 is connected to the protection member 32, the connecting member 31 is connected to the protective shell 1, and the protection member 32 is located at the end of the connecting member 31 away from the protective shell 1.

[0030] In this embodiment, the protection structure 100 of the present invention realizes effective protection of the battery pack by reasonably designing the protective shell 1 and the protection component 3. An installation groove 1a is formed in the protective shell 1 for fixedly installing the battery pack to ensure its stability during vehicle driving. The protection component 3 is connected to the protective shell 1 by welding, bolts or snaps, etc., and is located at the notch of the installation groove 1a. The protection component 3 can effectively block the notch to prevent external impacts, gravel, etc. from directly hitting the battery pack. Specifically, the connecting member 31 can be made of high-strength metal materials such as aluminum alloy or stainless steel to ensure the firmness and durability of the connection. The protection member 32 can be selected with different materials and shapes according to needs. For example, a protection plate made of high-strength composite materials can be used, or an elastic protective cover with a certain buffering function can be designed. In practical applications, the protection member 32 can be connected to the connecting member 31 by bolts, welding or snaps, etc., and is installed at one end of the connecting member 31 away from the protective shell 1 to facilitate the protection, disassembly and maintenance of the battery pack structure. By arranging the protection component 3 at the notch of the installation groove 1a, it can effectively prevent external objects from directly impacting the battery pack, reduce the risk of battery pack damage caused by collisions, and thus improve the safety of new energy vehicles. Secondly, the structure is reasonably designed, easy to install and maintain, does not increase too much extra weight and complexity, and helps to improve the overall performance and reliability of new energy vehicles. In addition, the protection component 3 can be flexibly adjusted and optimized according to different application scenarios and requirements. For example, anti-slip patterns or anti-corrosion coatings can be added to the protection member 32 to further enhance its protection performance and service life.

[0031] The technical solution of the present invention realizes effective protection of the battery pack by reasonably designing the protective shell 1 and the protection component 3. Specifically, an installation groove 1a is formed in the protective shell 1 for fixedly installing the battery pack to ensure its stability during vehicle driving. The protection component 3 is connected to the protective shell 1 through the connecting member 31 and is located at the notch of the installation groove 1a, which can effectively block the notch to prevent external impacts, gravel, etc. from directly hitting the battery pack. The design of the connecting member 31 not only ensures the firm connection between the protection component 3 and the protective shell 1, but also enables the protection member 32 to be flexibly installed at one end of the connecting member 31 away from the protective shell 1, so as to provide reliable protection without affecting the installation and maintenance of the battery pack. By arranging the protection component 3 at the notch of the installation groove 1a, it can effectively prevent external objects from directly impacting the battery pack, reduce the risk of battery pack damage caused by collisions, and thus improve the safety of new energy vehicles.

[0032] In one embodiment of the present invention, please refer to Figure 3 , a protection cavity 31a is formed by enclosing the connecting member 31 and the protection member 32. The protection component 3 has a buffer member 33. The buffer member 33 connects the connecting member 31 and the protection member 32, and the buffer member 33 is located in the protection cavity 31a.

[0033] In one embodiment, a connecting member 31 and a protective member 32 enclose to form a protective cavity 31a, and a buffer member 33 is disposed in the protective cavity 31a to achieve multi-layer protection for the battery pack. The connecting member 31 can be made of a high-strength metal material (such as aluminum alloy or stainless steel) or a high-strength composite material, and is connected to the protective shell 1 by means of bolts, welding or snap-fitting, etc., to ensure its firmness and stability. The protective member 32 can be selected from different materials and shapes according to needs, such as a protective plate made of a high-strength composite material or an elastic protective cover. The buffer member 33 can be made of an elastic material (such as rubber, silicone or polyurethane foam) or an airbag structure, and is connected between the connecting member 31 and the protective member 32 and is located in the protective cavity 31a. Specifically, the buffer member 33 can be fixed between the connecting member 31 and the protective member 32 by means of adhesion, snap-fitting or embedding, etc. For example, the buffer member 33 can be designed as a rubber pad and fixed to the inner surfaces of the connecting member 31 and the protective member 32 by adhesion; or an airbag structure can be adopted and inflated through an inflation device so that it can effectively buffer and disperse the impact force when being impacted. By disposing the buffer member 33 in the protective cavity 31a, the impact resistance and buffering capacity of the protective component 3 are significantly improved. The buffer member 33 can effectively absorb and disperse the impact force when being externally impacted, reduce the direct action of the impact on the battery pack, thereby reducing the risk of damage to the battery pack and improving the safety of new energy vehicles. In addition, the setting of the buffer member 33 can further reduce the rigid constraint of the protective component 3 on the battery pack and reduce the influence of the vibration during the vehicle driving process on the battery pack.

[0034] In one embodiment of the present invention, please refer to Figure 3 , a buffer cavity 33a is formed in the buffer member 33, the buffer member 33 protrudes with a buffer bracket 331, the buffer bracket 331 is located in the buffer cavity 33a, and the buffer bracket 331 divides the buffer cavity 33a into at least two independent spaces.

[0035] In this embodiment, a buffer cavity 33a is formed inside the buffer member 33. A buffer bracket 331 is convexly provided in the buffer cavity 33a, and the buffer bracket 331 divides the buffer cavity 33a into at least two independent spaces. For example, the buffer member 33 can be made of an elastic material (such as rubber, silicone, or polyurethane foam), and the buffer bracket 331 can be a structural member made of rigid plastic or metal, and is manufactured by injection molding, stamping, or machining. The buffer bracket 331 can be designed in a cross shape, a T shape, or other shapes to meet different partitioning requirements. In a specific implementation, the buffer bracket 331 can be fixed inside the buffer member 33 by bonding, buckling, or embedding. The buffer bracket 331 can be designed as a cross-shaped structure, dividing the buffer cavity 33a into four independent spaces, and different buffer media (such as gas, liquid, or granular material) can be filled in each space to achieve different buffer effects. In addition, the buffer bracket 331 can also be designed as an adjustable structure, and its position can be adjusted by means of threads or card slots, so as to change the size and shape of each independent space in the buffer cavity 33a to adapt to different application scenarios and buffer requirements. The design of the buffer member 33 of the present invention divides the buffer cavity 33a into multiple independent spaces by providing the buffer bracket 331 in the buffer cavity 33a, significantly improving the buffer performance and adaptability of the buffer member 33. This design can, when subjected to an external impact, more effectively absorb and disperse the impact force through the synergistic effect of multiple independent spaces, reducing the direct impact on the battery pack, thereby improving the safety of new energy vehicles. In addition, by reasonably designing the shape and position of the buffer bracket 331, the buffer effect of the buffer member 33 can be further optimized. For example, using a cross-shaped buffer bracket 331 can evenly divide the buffer cavity 33a, enabling each independent space to deform and absorb energy more evenly when subjected to an impact; while using an adjustable buffer bracket 331 can flexibly adjust the size and shape of each independent space in the buffer cavity 33a according to different application scenarios and buffer requirements, thereby achieving a more precise buffer effect. This design not only improves the versatility and adaptability of the buffer member 33, but also reduces the risk of battery pack damage caused by external impacts, further enhancing the safety and reliability of new energy vehicles.

[0036] In an embodiment of the present invention, please refer to Figure 3 , the protection component 3 further includes at least two buffer plates 34. Two ends of each buffer plate 34 are respectively connected to the buffer member 33 and the connecting member 31, and two opposite buffer plates 34 are arranged at an obtuse angle.

[0037] In one embodiment, the protection component 3 further includes at least two buffer plates 34. Both ends of each buffer plate 34 are respectively connected to the buffer member 33 and the connecting member 31, and the two relatively buffer plates 34 are arranged at an obtuse angle. For example, the buffer plate 34 can be made of an elastic material (such as rubber, silica gel or high-strength plastic) to provide good buffering performance. The buffer plate 34 can be connected to the buffer member 33 and the connecting member 31 by means of bonding, snap-fastening or bolts. In a specific implementation, the buffer plate 34 can be designed as a strip-shaped structure with a certain thickness and width, and its two ends are respectively connected to the side surface or the bottom surface of the buffer member 33 and the connecting member 31. The two relatively buffer plates 34 can be arranged at a "V" or "X" shaped angle to enhance the overall stability and buffering effect of the protection component 3. For example, the two buffer plates 34 can be arranged at a 100° angle to form a "V" shaped structure, so that when subjected to an external impact, the buffer plate 34 can disperse and absorb the impact force from multiple directions, thereby better protecting the battery pack. In addition, the length and angle of the buffer plate 34 can be adjusted according to the size and protection requirements of the battery pack to achieve the best buffering effect.

[0038] In an embodiment of the present invention, please refer to Figure 3 , the protection component 3 further includes at least two dampers 35, and both ends of each damper 35 are respectively connected to a buffer plate 34 and the connecting member 31.

[0039] In this embodiment, the protection component 3 further includes at least two dampers 35. Both ends of each damper 35 are respectively connected to a buffer plate 34 and a connecting member 31. For example, the damper 35 can be a hydraulic damper 35, a pneumatic damper 35 or a magnetorheological damper 35, etc., to meet different buffering and damping requirements. The hydraulic damper 35 can generate damping force through the flow of internal hydraulic oil, the pneumatic damper 35 uses gas compression and expansion to achieve the damping effect, and the magnetorheological damper 35 can adjust the magnitude of the damping force through magnetic field changes. In specific implementation, the damper 35 can be connected to the buffer plate 34 and the connecting member 31 by bolts, buckles or welding, etc. For example, the hydraulic damper 35 can be installed on the side of the buffer plate 34, one end of which is fixed to the buffer plate 34 by bolts, and the other end is connected to the connecting member 31 by a buckle. By reasonably selecting the type and parameters of the damper 35, further buffering and damping of the impact force can be achieved, thereby improving the performance of the protection component 3. The protection component 3 of the present invention significantly improves the buffering and damping effects by introducing the damper 35. Both ends of the damper 35 are respectively connected to the buffer plate 34 and the connecting member 31, and can further absorb and dissipate the impact energy when subjected to an external impact, reducing the direct action of the impact force on the battery pack. In an environment with a high impact risk, a hydraulic damper 35 with a high damping force can be used; while in a scenario where quick response is required, a pneumatic damper 35 can be used. By reasonably designing the type and parameters of the damper 35, the performance of the protection component 3 can be further optimized to adapt to different application scenarios and protection requirements. This design not only improves the safety of new energy vehicles, but also extends the service life of the battery pack and reduces the maintenance cost.

[0040] In one embodiment of the present invention, please refer to Figure 3 , the protection component 3 includes a plurality of connecting members 31 and a plurality of protection members 32. Each connecting member 31 is connected to a protection member 32, each connecting member 31 is connected to the protective shell 1, and each protection member 32 is located at one end of a connecting member 31 away from the protective shell 1.

[0041] In one embodiment, the protection component 3 realizes the all-round protection of the battery pack through the combined design of a plurality of connecting pieces 31 and a plurality of protection pieces 32. Each connecting piece 31 is connected to a protection piece 32, and each connecting piece 31 is connected to the protective shell 1. The protection piece 32 is located at the end of the connecting piece 31 away from the protective shell 1. This structure can be realized through a variety of specific embodiments. For example, the connecting piece 31 can be made of high-strength metal materials (such as aluminum alloy or stainless steel) or high-strength composite materials, and is fixedly connected to the protective shell 1 by means of bolts, welding or buckles. The protection piece 32 can be selected with different materials and shapes according to the protection requirements of different parts, such as a protection plate made of high-strength composite materials, an elastic protective cover or a metal protection net, etc. In a specific implementation, the connecting piece 31 can be designed in an "L" shape, a "T" shape or a "U" shape to adapt to different installation positions and protection requirements. For example, at the bottom and side of the battery pack, a plurality of connecting pieces 31 and protection pieces 32 can be respectively installed to form an all-round protection structure 100. At the bottom, the protection piece 32 can be designed as a metal protection plate with a certain thickness to resist gravel impact and bottoming collision; on the side, the protection piece 32 can be designed as an elastic protective cover to absorb the impact force of side collisions.

[0042] In one embodiment of the present invention, please refer to Figure 3 , the protection structure 100 further includes a heat dissipation component 2. The heat dissipation component 2 includes a heat conduction plate 21 and a heat dissipation bottom shell 22. The heat conduction plate 21 and the heat dissipation bottom shell 22 are connected. The heat conduction plate 21 is connected to the protective shell 1 and blocks the notch of the installation groove 1a. A heat dissipation cavity 2a is formed by enclosing the heat conduction plate 21 and the heat dissipation bottom shell 22.

[0043] In this embodiment, the design of the heat dissipation component 2 provides an effective heat dissipation function for the battery pack. The heat dissipation component 2 includes a heat conduction plate 21 and a heat dissipation bottom shell 22. The heat conduction plate 21 and the heat dissipation bottom shell 22 are tightly connected by mechanical connection (such as bolts, welding or buckles). The heat conduction plate 21 is connected to the protective shell 1 by means of bolts or welding and blocks the notch of the installation groove 1a. The heat conduction plate 21 and the heat dissipation bottom shell 22 jointly enclose a heat dissipation cavity 2a for guiding the dissipation of heat. In a specific implementation, the heat conduction plate 21 can be made of materials with high thermal conductivity, such as aluminum alloy, copper alloy or graphene composite materials, to improve the heat conduction efficiency. The heat dissipation bottom shell 22 can be designed as a structure with a plurality of heat dissipation fins to increase the heat dissipation area. For example, the heat dissipation bottom shell 22 can be made of aluminum alloy, and a plurality of parallel heat dissipation fins are processed on the surface, and the heat is dissipated to the surrounding environment through natural convection or forced convection (such as fan assistance). In addition, the heat dissipation cavity 2a can be filled with thermal gel or thermal silicone grease to further improve the heat dissipation effect. During installation, the heat conduction plate 21 is closely attached to the outer shell of the battery pack, conducts the heat generated by the battery pack to the heat dissipation bottom shell 22, and then dissipates the heat to the environment through the heat dissipation fins.

[0044] In one embodiment of the present invention, please refer to Figure 3 , the heat dissipation component 2 further includes a liquid storage tank 23, a cooling pipe 24 and a circulation pump 25. Both ends of the cooling pipe 24 communicate with the liquid storage tank 23, the cooling pipe 24 is arranged in a spiral shape in the heat dissipation cavity 2a, and the circulation pump 25 can make the coolant in the liquid storage tank 23 circulate in the cooling pipe 24.

[0045] In one embodiment, the heat dissipation component 2 further includes a liquid storage tank 23, a cooling pipe 24 and a circulation pump 25. Both ends of the cooling pipe 24 communicate with the liquid storage tank 23, the cooling pipe 24 is arranged in a spiral shape in the heat dissipation cavity 2a, and the circulation pump 25 can make the coolant in the liquid storage tank 23 circulate in the cooling pipe 24. In a specific implementation, the liquid storage tank 23 can be made of high-strength plastic or metal material for storing the coolant. The cooling pipe 24 can be made of corrosion-resistant and high-thermal conductivity materials such as copper pipes or aluminum alloy pipes, and is fixed in the heat dissipation cavity 2a by welding or buckling. The spiral shape design of the cooling pipe 24 can increase the contact area between the coolant and the inner wall of the heat dissipation cavity 2a, improving the heat dissipation efficiency. The circulation pump 25 can be an electric pump or a mechanical pump, and is connected to the liquid storage tank 23 and the cooling pipe 24 through pipelines to make the coolant circulate in the system. For example, the cooling pipe 24 can be designed as a multi-layer spiral structure to further increase the flow path of the coolant and the heat dissipation effect. In practical applications, the coolant can be water, ethylene glycol or other special coolants, which are selected according to different heat dissipation requirements and environmental conditions. By reasonably designing the shape, length of the cooling pipe 24 and the power of the circulation pump 25, high-efficiency heat dissipation performance can be achieved. The heat dissipation component 2 of the present invention significantly improves the heat dissipation efficiency and reliability of the battery pack through the synergistic effect of the liquid storage tank 23, the cooling pipe 24 and the circulation pump 25. The cooling pipe 24 is arranged in a spiral shape in the heat dissipation cavity 2a, which can effectively increase the contact area between the coolant and the inner wall of the heat dissipation cavity 2a, so as to absorb and dissipate heat more efficiently. The introduction of the circulation pump 25 ensures the continuous circulation of the coolant in the system, further improving the heat dissipation effect. For example, in high-load operation or high-temperature environment, the circulation pump 25 can accelerate the flow of the coolant, timely take away the heat generated by the battery pack, and keep the battery pack within the optimal working temperature range. In addition, this design also has good adaptability and flexibility, and can be adjusted and optimized according to different application scenarios and heat dissipation requirements. For example, by increasing the number of layers of the cooling pipe 24 or adjusting the power of the circulation pump 25, the heat dissipation performance can be further improved. This efficient heat dissipation component 2 not only extends the service life of the battery pack, but also improves the overall performance and safety of new energy vehicles, enabling them to operate stably under various working conditions.

[0046] In one embodiment of the present invention, please refer to Figure 3, the heat dissipation component 2 has an air inlet 2b and a plurality of heat sinks 26. Each heat sink 26 is connected to the heat dissipation bottom case 22, and the heat sinks 26 are spaced apart in the heat dissipation cavity 2a. The air inlet 2b communicates the heat dissipation cavity 2a with the outside.

[0047] In this embodiment, by providing the air inlet 2b and the plurality of heat sinks 26, the heat dissipation performance of the heat dissipation component 2 is further optimized. The heat sinks 26 are connected to the heat dissipation bottom case 22 and are spaced apart in the heat dissipation cavity 2a. The air inlet 2b communicates the heat dissipation cavity 2a with the outside, providing a natural convection or forced convection heat dissipation path for the heat dissipation component 2. In a specific implementation, the heat dissipation bottom case 22 can be made of a metal material with a high thermal conductivity (such as aluminum alloy or copper alloy). The heat sinks 26 can be integrally formed with the heat dissipation bottom case 22 by stamping, extrusion or casting, or fixed to the heat dissipation bottom case 22 by welding, bolt connection or the like. The heat sinks 26 can be designed as thin sheet-like structures to increase the heat dissipation area. For example, the heat sinks 26 can be made of aluminum alloy material, with a thickness of 1 - 3 mm, a width of 10 - 20 mm, and a length determined according to the size of the heat dissipation cavity 2a. The heat sinks 26 can be evenly spaced in the heat dissipation cavity 2a, and the spacing between adjacent heat sinks 26 can be designed to be 5 - 10 mm to ensure smooth air flow. The air inlet 2b can be designed on the side or bottom of the heat dissipation bottom case 22, and the shape can be circular, square or polygonal, and the size is determined according to the heat dissipation requirements. For example, the air inlet 2b can be designed as a plurality of small holes to increase the air inlet area and reduce the wind resistance. By reasonably designing the shape, size and spacing of the heat sinks 26, and the position and size of the air inlet 2b, the heat dissipation effect of the heat dissipation component 2 can be further optimized.

[0048] The present invention also proposes a protective battery pack 200. Please refer to Figure 1 and Figure 2 , the protective battery pack 200 includes a protective structure 100 and a battery pack. The specific structure of the protective structure 100 refers to the above embodiment. Since this protective battery pack 200 adopts all the technical solutions of the above all embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated here one by one. Among them, the battery pack is accommodated and limited in the installation groove 1a.

[0049] In one embodiment, the protective battery pack 200 effectively protects and fixes the battery pack by installing the battery pack in the installation groove 1a of the protective structure 100. Specifically, the installation groove 1a of the protective structure 100 can be customized according to the size and shape of the battery pack to ensure that the battery pack can fit tightly and be firmly limited in the installation groove 1a. For example, the inner wall of the installation groove 1a can be designed to match the shape of the battery pack housing and fix the battery pack by interference fit or elastic snap. In addition, the connecting member 31 and the protective member 32 of the protective structure 100 can be made of high-strength materials (such as aluminum alloy or high-strength composite materials) to provide sufficient mechanical strength. Components such as the buffer member 33, the buffer plate 34, and the damper 35 in the protection assembly 3 can be configured according to the protection requirements of the battery pack. For example, the buffer plate 34 and the damper 35 are respectively arranged at the bottom and side of the battery pack to cope with impacts in different directions. The heat dissipation assembly 2 can be optimized according to the heat dissipation requirements of the battery pack. For example, multiple layers of heat dissipation fins 26 and cooling pipes 24 are arranged in the heat dissipation cavity 2a to improve the heat dissipation efficiency. Through this integrated design, the protective battery pack 200 can simultaneously meet the protection, fixation, and heat dissipation requirements of the battery pack. The protective battery pack 200 of the present invention significantly improves the safety, reliability, and heat dissipation performance of the battery pack by organically combining the battery pack with the protective structure 100. The installation groove 1a of the protective structure 100 can tightly accommodate and limit the battery pack to ensure its stability during vehicle driving and avoid displacement or damage of the battery pack due to vibration or impact. Components such as the buffer member 33, the buffer plate 34, and the damper 35 in the protection assembly 3 can effectively absorb and disperse external impact forces and reduce the risk of damage to the battery pack. The heat dissipation assembly 2 realizes an efficient heat dissipation effect through components such as the heat conduction plate 21, the heat dissipation bottom shell 22, the cooling pipe 24, and the circulation pump 25, ensuring that the battery pack can maintain within the optimal working temperature range during high-load operation, extending the battery life and improving the performance. In addition, this integrated design is convenient for installation and maintenance, reducing the production cost and the difficulty of maintenance. By reasonably configuring the protective structure 100 and the heat dissipation assembly 2, the protective battery pack 200 can adapt to different application scenarios and requirements and provide reliable power support for new energy vehicles.

[0050] The above is only an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformation made under the technical concept of the present invention by using the content of the specification and drawings of the present invention, or any direct / indirect application in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A protective structure is applied to a battery pack, characterized in that, Comprising: A protective case (1), an installation groove (1a) is formed inside the protective case (1), and the installation groove (1a) is used for installing a battery pack; And A protection component (3), the protection component (3) is connected to the protective case (1), the protection component (3) is located at the notch of the installation groove (1a), and can block the notch of the installation groove (1a); Wherein, the protection component (3) includes a connecting piece (31) and a protection piece (32), the connecting piece (31) is connected to the protection piece (32), the connecting piece (31) is connected to the protective case (1), and the protection piece (32) is located at one end of the connecting piece (31) away from the protective case (1).

2. The protection structure according to claim 1, characterized in that, A protection cavity (31a) is formed by enclosing the connecting piece (31) and the protection piece (32), the protection component (3) has a buffer piece (33), the buffer piece (33) connects the connecting piece (31) and the protection piece (32), and the buffer piece (33) is located inside the protection cavity (31a).

3. The protective structure according to claim 2, wherein A buffer cavity (33a) is formed inside the buffer piece (33), the buffer piece (33) protrudes with a buffer bracket (331), the buffer bracket (331) is located inside the buffer cavity (33a), and the buffer bracket (331) divides the buffer cavity (33a) into at least two independent spaces.

4. The protective structure according to claim 3, characterized in that The protection component (3) further includes at least two buffer plates (34), both ends of each buffer plate (34) are respectively connected to the buffer piece (33) and the connecting piece (31), and two opposite buffer plates (34) are arranged at an obtuse angle.

5. The protective structure according to claim 4, wherein The protection component (3) further includes at least two dampers (35), both ends of each damper (35) are respectively connected to one buffer plate (34) and the connecting piece (31).

6. The protection structure according to any one of claims 1 to 5, characterized in that The protection component (3) includes a plurality of the connecting pieces (31) and a plurality of the protection pieces (32), each connecting piece (31) is connected to one protection piece (32), each connecting piece (31) is connected to the protective case (1), and each protection piece (32) is located at one end of one connecting piece (31) away from the protective case (1).

7. The protection structure according to any one of claims 1 to 5, characterized in that The protection structure further includes a heat dissipation component (2), the heat dissipation component (2) includes a heat conducting plate (21) and a heat dissipation bottom case (22), the heat conducting plate (21) is connected to the heat dissipation bottom case (22), the heat conducting plate (21) is connected to the protective case (1) and blocks the notch of the installation groove (1a), and a heat dissipation cavity (2a) is formed by enclosing the heat conducting plate (21) and the heat dissipation bottom case (22).

8. The protection structure according to claim 7, characterized in that, The heat dissipation component (2) further includes a liquid storage tank (23), a cooling pipe (24) and a circulation pump (25), both ends of the cooling pipe (24) are communicated with the liquid storage tank (23), the cooling pipe (24) is arranged in a spiral shape in the heat dissipation cavity (2a), and the circulation pump (25) can make the coolant in the liquid storage tank (23) circulate in the cooling pipe (24).

9. The protective structure according to claim 7, wherein, The heat dissipation component (2) has an air inlet (2b) and a plurality of heat sinks (26). Each heat sink (26) is connected to the heat dissipation bottom case (22), and the heat sinks (26) are arranged at intervals in the heat dissipation cavity (2a). The air inlet (2b) communicates the heat dissipation cavity (2a) with the outside.

10. A protective battery pack, characterized in that, Comprising the protection structure according to any one of claims 1 to 9; and A battery pack, which is accommodated and limited in the installation groove (1a).

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