Battery heating mechanism

Abstract

The utility model provides a battery heating mechanism, the battery heating mechanism comprises a base body and a plurality of heating elements, the base body is provided with a plurality of through holes arranged at intervals along a first direction and a plurality of mounting holes arranged at intervals along the first direction, and at least one heating element is arranged in the corresponding mounting hole and is located between the corresponding two adjacent through holes. According to the battery heating mechanism provided by the utility model, the plurality of heating pieces are distributed in the base body at intervals and are matched with the base body with better thermal conductivity, so that heat can be quickly and uniformly conducted to the whole base body structure in the heating process of the plurality of heating pieces, and the temperature difference among the areas of the base body is smaller; therefore, the problem that the temperature of some areas of the battery heating mechanism is too high while the temperature of some areas is too low is avoided. In addition, through the design of the through holes, the overall weight of the battery heating mechanism is reduced to a certain extent, so that the battery heating mechanism can be suitable for more application scenes.

Description

TECHNICAL FIELD

[0001] The utility model relates to a battery field, concretely relates to a battery heating mechanism. BACKGROUND

[0002] In order to ensure that the battery can normally run under low temperature environment, the current commonly used mode is to heat the battery by using the heating plate, so that the temperature of the battery is kept in the appropriate range. The design purpose of the heating plate is to improve the battery temperature, to avoid the working performance of the battery being affected due to low temperature. However, the common heating plate structure is usually relatively complex, and the weight is relatively heavy, which makes it not practical enough in some application scenarios with strict restrictions on space and weight. In addition, the current heating plate often has the phenomenon that the temperature of the heating position is not uniform, which may cause the temperature of some areas to be too high and the temperature of other areas to be lower, thereby affecting the performance and safety of the battery. Therefore, developing a new type of heating solution that is lighter, more efficient and uniform in heating has become an important direction to improve the application performance of the battery in low temperature environment. SUMMARY

[0003] The embodiment of the utility model provides a battery heating mechanism for solving the problems of heavy weight of heating device and non-uniform temperature of heating area in the related art.

[0004] The embodiment of the utility model provides a battery heating mechanism, which comprises:

[0005] The base body is provided with a plurality of through holes arranged at intervals along the first direction and a plurality of mounting holes arranged at intervals along the first direction; and a plurality of heating pieces;

[0006] At least one heating piece is installed in the corresponding mounting hole and located between the corresponding adjacent two through holes.

[0007] In an embodiment, 0.65≤H1 / T1≤0.75; wherein T1 is the thickness of the base body, H1 is the height of the through hole in the thickness direction of the base body, and the thickness direction of the base body intersects the first direction.

[0008] In an embodiment, the through hole has two end portions opposite in the thickness direction of the base body and a middle portion between the two end portions, and the thickness direction of the base body intersects the first direction; wherein in the two hole walls opposite in the first direction of the through hole, each hole wall is protruded towards the other hole wall, so that the middle portion of the through hole is narrower than the end portion of the through hole.

[0009] In an embodiment, the through hole and the adjacent mounting hole at least partially overlap in the thickness direction.

[0010] In an embodiment, 1.4≤W1 / W2≤1.6; wherein W1 is the width of the end portion of the through hole, and W2 is the width of the middle portion of the through hole.

[0011] In an embodiment, 0.1≤T2 / T1≤0.15; wherein, T2 is the distance between the hole wall of the mounting hole and the hole wall of the through hole in the first direction, and T1 is the thickness of the base body.

[0012] In an embodiment, the distance between the centers of two adjacent mounting holes is equal to the thickness of the base body.

[0013] In an embodiment, the battery heating mechanism further comprises a reinforcing assembly connected to the bottom of the base body.

[0014] In an embodiment, the reinforcing assembly comprises two first reinforcing members and a second reinforcing member arranged at intervals; the two first reinforcing members are respectively connected to the bottom of the two ends of the base body in the first direction, and the second reinforcing member is located between the two first reinforcing members, and 0.5≤W3 / W4≤1; wherein, W3 is the width of the second reinforcing member, and W4 is the width of the first reinforcing member.

[0015] In an embodiment, the base body and the reinforcing assembly are integrally formed.

[0016] The utility model provides a kind of battery heating mechanism, and the battery heating mechanism includes base body and multiple heating pieces, wherein, base body is provided with multiple through holes along the first direction interval arrangement and multiple mounting holes along the first direction interval arrangement, at least one heating piece is installed in corresponding mounting hole, and located between corresponding two adjacent through holes.The battery heating mechanism provided by the utility model, by the internal distribution of multiple heating pieces in the base body at intervals, and cooperate with the base body with good heat conduction, so that multiple heating pieces can rapidly and uniformly conduct heat to the entire base body structure in the process of heating, so as to realize the temperature difference between each region of base body is smaller, so as to avoid the problem that the temperature of some regions of battery heating mechanism is overheated while the temperature of some regions is too low.In addition, the design of through hole reduces the overall weight of battery heating mechanism to some extent, so that battery heating mechanism can be applied to more application scenarios. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating creative labor.

[0018] Figure 1 It is the structural schematic diagram of battery heating mechanism provided by the utility model embodiment;

[0019] Figure 2 It is Figure 1 the enlarged view of part A in it;

[0020] Figure 3 is Figure 1 a side view of the battery heating mechanism in

[0021] Figure 4 is Figure 3 an enlarged view of part B in

[0022] Figure 5 is Figure 3 an enlarged view of part B in

[0023] BRIEF DESCRIPTION OF DRAWINGS

[0024] 100, battery heating mechanism; 110, base body; 130, through hole; 131, end portion; 132, middle portion; 140, mounting hole; 150, reinforcing assembly; 151, first reinforcing member; 152, second reinforcing member. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. In addition, it should be understood that the specific embodiments described herein are only used to illustrate and explain the present application, and are not used to limit the present application. In the present application, the orientation words such as "upper" and "lower" generally refer to the upper and lower of the device in the actual use or working state, and specifically refer to the direction of the drawing in the drawings. And "inner" and "outer" refer to the outline of the device.

[0026] In order to solve the problem of heavy weight and uneven temperature of the heating area of the heating device in the related art, the embodiments of the present application provide a battery heating mechanism 100, please refer to Figure 1 , Figure 1 is a structural schematic view of the battery heating mechanism 100 provided by the embodiments of the present application.

[0027] The battery heating mechanism 100 includes a base body 110 and a plurality of heating members (not shown in the figure). The plurality of heating members are installed at intervals in the interior of the base body 110. Since the base body 110 and the heating members have good thermal conductivity between them, the heating members can quickly transfer heat to the base body 110 when heating, thereby indirectly increasing the temperature of the base body 110. The base body 110 is in thermal connection with a plurality of batteries, so that the temperature of the battery is maintained within a suitable range to avoid the working performance of the battery being affected due to low temperature.

[0028] In some embodiments, please refer to Figure 2 , Figure 2 is Figure 1 A portion of the enlarged view of the base body 110. The base body 110 is designed as a long plate structure with a plurality of through holes 130 and mounting holes 140 arranged in a first direction. First, the through hole 130 is designed as a hollow structure formed from one end of the base body 110 to the other end. This hollow design enables the base body 110 to effectively reduce weight while maintaining strength, improving the overall portability of the battery heating mechanism 100. At the same time, the mounting hole 140 is configured to mount the heating element, each mounting hole 140 can accommodate and mount at least one heating element, and these mounting holes 140 are evenly distributed between two adjacent through holes 130, this arrangement optimizes the heat transfer efficiency, making the heating process more efficient.

[0029] It should be noted that when the shape of the base body 110 is relatively regular, the first direction can be defined as the length direction, the width direction, or other specified direction of the base body 110. For example, in all embodiments of the present application, the base body 110 is in a long plate structure, at this time, the first direction specifically refers to the width direction of the base body 110. It is easy to understand that in the embodiments of the present application, the first direction can also be other directions, such as the length direction, height direction, etc. of the base body 110.

[0030] The battery heating mechanism 100 in the present embodiment, by uniformly distributing a plurality of heating elements inside the base body 110, and cooperating with the base body 110 with good heat conductivity, enables the plurality of heating elements to rapidly and uniformly conduct heat to the entire base body structure during the heating process. This design not only ensures that the temperature difference between each region of the base body 110 is small, effectively avoiding the problem of some regions having higher temperature and other regions having lower temperature, thereby improving the safety and working efficiency of the battery. In addition, the design of the through hole 130 reduces the overall weight of the battery heating mechanism 100 to some extent, making it applicable to more application scenarios. Due to the reduction in weight, the battery heating mechanism 100 can be applied in environments with high space and weight requirements.

[0031] In the above embodiments, the lightness of the battery heating mechanism 100 is ensured by designing multiple through holes 130 on the base body 110. This design not only significantly reduces the weight of the base body 110, but also improves the flexibility and adaptability of the overall structure, which can be applied to various application scenarios. The number, width and height of the through holes 130 are important factors affecting the lightness of the base body 110. First, the number of through holes 130 is directly related to the degree of material removal of the base body 110. Increasing the number of through holes 130 can effectively reduce the overall mass of the base body 110, but the spacing between each through hole 130 needs to be considered to maintain sufficient structural stability. Second, increasing the width of the through holes 130 can reduce the overall mass of the base body 110, but too wide a width can weaken the overall strength of the base body 110, and the height design affects the thickness of the base body 110, which in turn affects the structural strength.

[0032] When the number of through holes 130 and the width of each through hole 130 are constant, the height design of the through holes 130 is particularly important. Specifically, increasing the height of the through holes 130 means that the thickness of the base body 110 between the inner wall of the through hole 130 and the outer surface of the base body 110 will become thinner, thereby effectively reducing the overall weight of the base body 110. This structural design helps to improve the portability of the battery heating mechanism 100, making it adaptable to a variety of application scenarios. However, if the height of the through holes 130 is designed too high, the structural strength of the base body 110 will also be reduced. When the base body 110 is subjected to external pressure or thermal stress, if the structural strength is insufficient, it may cause structural failure or deformation, thereby affecting the safety and reliability of the battery heating mechanism 100. Conversely, if the height of the through holes 130 is designed too low, although it can ensure the structural strength of the base body 110 to some extent, it will significantly reduce the weight reduction effect brought by the through holes 130, and may also cause the thickness between the heating elements to be too thick, affecting the heat conduction performance of the base body 110.

[0033] To ensure the lightness of the base body 110 while having a relatively good structural strength, please refer to Figure 3 and Figure 4 , Figure 3 is Figure 1 a side view of the battery heating mechanism 100 in Figure 4 is Figure 3 an enlarged view of part B in FIG. 8, in some embodiments, the ratio of the height H1 of the through hole 130 in the thickness direction of the base body 110 to the base body thickness T1 is designed to be between 0.65 and 0.75. Experimental results show that when the ratio of the height H1 of the through hole 130 in the thickness direction of the base body 110 to the base body thickness T1 is within this specified range, the weight of the base body 110 can be significantly reduced, while still maintaining good structural strength, which can meet various performance requirements of the battery heating mechanism 100 during operation.

[0034] In some embodiments, referring to Figure 4 , Figure 5 , Figure 5 is an enlarged view of part B in Figure 3 , the through hole 130 includes two end portions 131 opposite in the thickness direction of the base 110, and a middle portion 132 between the two end portions 131, and the thickness direction of the base 110 is transverse to the first direction in the above embodiments. In the first direction, each of the two hole walls of the through hole 130 protrudes towards the other hole wall, thereby forming a shape with the middle portion 132 being narrower and the two end portions 131 being wider. The advantage of this structural design is that by designing the width of the middle portion 132 of the through hole 130 to be narrower, the heating element is placed between the middle portions 132 of two adjacent through holes 130, so that the wall thickness between the heating element and the two end portions 131 of the through hole 130 is thinner, thereby reducing the obstruction in the heat conduction process, and thus effectively enhancing the overall heat conduction efficiency.

[0035] Under the condition that the number of through holes 130 and the height of each through hole 130 are constant, the width of the through hole 130 also affects the portability and structural strength of the base 110. Specifically, when the difference between the width W1 of the end portion 131 of the through hole 130 and the width W2 of the middle portion 132 of the through hole 130 is small, the cross-sectional area of the through hole 130 in the thickness direction of the base 110 increases, and the volume occupied by the through hole 130 in this structure is large, which results in insufficient structural strength of the base 110 when subjected to load, thereby affecting the overall stability and durability.

[0036] In order to effectively achieve the balance between the light weight and the structural strength of the base 110, in some embodiments, referring to Figure 4 , Figure 5 , the ratio between the width W1 of the end portion 131 of the through hole 130 and the width W2 of the middle portion 132 of the through hole 130 is designed to be between 1.4 and 1.6. Experimental results show that when the ratio of the width W1 of the end portion 131 of the through hole 130 and the width W2 of the middle portion 132 of the through hole 130 is within this set range, the weight of the base 110 can be significantly reduced, while still maintaining good structural strength. This structural optimization not only improves the portability of the base 110, but also ensures that it can meet the structural strength of the battery heating mechanism 100 during operation.

[0037] In order to further improve the portability of the base 110, in some embodiments, referring toFigure 4 、 Figure 5 The through hole 130 and the two adjacent mounting holes 140 are designed to at least partially overlap in the thickness direction of the base 110. Specifically, through the structural design in the present embodiment, the wall thickness between the heat generating member and the middle portions 132 of the two adjacent through holes 130 can be ensured to be thin, i.e., the distance between the middle portions 132 of the two adjacent through holes 130 is closer. When the size of the base 110 in the first direction is fixed, the closer the distance between the middle portions 132 of the two adjacent through holes 130, the more through holes 130 and mounting holes 140 can be arranged, thus significantly enhancing the convenience of the base 110 while ensuring the heat conduction of the base 110.

[0038] To ensure the structural strength of the base 110, in some embodiments, as shown in Figure 4 、 Figure 5 The ratio between the distance T2 between the hole wall of the mounting hole 140 and the adjacent hole wall of the through hole 130 in the first direction and the thickness T1 of the base 110 is designed to be between 0.1 and 0.15. This structural design can ensure that the base 110 can maintain good stability and deformation resistance under load. Experimental results show that when this ratio is within the set range, not only can the structural strength requirement of the base 110 be met, but also the increase in the weight of the base 110 due to the excessive distance T2 can be effectively prevented, avoiding the increase in the amount of material used due to the excessive distance T2, thereby increasing the overall weight of the base 110 and affecting its portability.

[0039] In some embodiments, as shown in Figure 4 The distance D between the centers of the two adjacent mounting holes 140 on the base 110 is designed to be equal to the thickness T1 of the base 110. First, this structural design can make the distance between the two adjacent through holes 130 the same, thus maintaining a relatively uniform distribution of materials in the base structure, effectively dispersing the stress when subjected to pressure and avoiding stress concentration in a certain area, thereby enhancing the overall compression resistance of the base 110 to improve the stability of the structure and ensure that it will not deform or break excessively under load.

[0040] In some embodiments, as shown in Figure 2 The battery heating mechanism 100 further comprises a reinforcing assembly 150 connected to the bottom of the base 110 for improving the structural strength of the base 110.

[0041] Further, the reinforcing assembly 150 comprises two first reinforcing members 151 and a second reinforcing member 152, the two first reinforcing members 151 are respectively connected to the bottom of the two ends of the base body 110 in the first direction, and the second reinforcing member 152 is located between the two first reinforcing members 151, and the ratio of the width W4 of the first reinforcing member 151 to the width W3 of the second reinforcing member 152 is set to be between 0.5 and 1.

[0042] The structural design of the embodiment can effectively reduce local stress concentration and prevent deformation or damage of the base body 110 caused by overload, thereby significantly improving the bending resistance of the base body 110 to ensure that the battery heating mechanism 100 has good stability. In addition, since the intermediate reinforcing rib has relatively low load bearing requirements, the smaller width not only reduces the amount of required material, thereby reducing material costs, but also reduces the overall weight and improves the portability and adaptability of the product. Therefore, setting the ratio of the width W4 of the first reinforcing member 151 to the width W3 of the second reinforcing member 152 to be between 0.5 and 1 can effectively save materials and reduce production costs.

[0043] In some embodiments, the base body 110 and the reinforcing assembly 150 are integrally formed. In the embodiment, the base body 110 and the reinforcing assembly 150 are integrally formed, which can significantly improve the structural strength and stability of the battery heating mechanism 100, and compensate for the defect that the connection between the base body 110 and the reinforcing assembly 150 connected by welding is easy to break, thereby enhancing the compression resistance.

[0044] The utility model provides a kind of battery heating mechanism 100, and the battery heating mechanism 100 includes base body 110 and multiple heating pieces, wherein, base body 110 is provided with multiple through holes 130 arranged along first direction at intervals and multiple mounting holes 140 arranged along first direction at intervals, at least one heating piece is installed in corresponding mounting hole 140, and located between corresponding adjacent two through holes 130. Base body 110 is connected with multiple batteries by heat, and heat is evenly transferred to multiple batteries, so that the temperature of battery can always be maintained in suitable range, avoid battery performance decline or damage caused by low temperature, ensure stable work of battery under various environmental conditions. This design not only optimizes the performance of heating device, but also reduces the overall weight to a certain extent, improves the convenience and reliability of use.

[0045] The battery heating mechanism 100 provided by the utility model, through the multiple heating pieces are distributed in the inside of the base body 110 at intervals, and cooperate with the base body 110 that heat conduction is good, so that the multiple heating pieces in the process of heating, heat can rapidly and evenly conduct to the whole base body 110 structure, thereby realize the temperature difference between each area of base body 110 is smaller, thereby avoid the problem that the battery heating mechanism 100 appears some area temperature overheating and some area temperature is too low. In addition, the design of the through hole 130 reduces the overall weight of the battery heating mechanism 100 to a certain extent, so that the battery heating mechanism 100 can be applied to more application scenarios.

[0046] The above detailed the embodiments of the utility model, the principle and implementation mode of the utility model are described in this paper by applying specific examples, the above embodiment is only for helping understanding the method and core idea of the utility model; at the same time, for the technical personnel in the art, according to the idea of the utility model, the specific implementation mode and application range will have the change, and the above-mentioned, the content of the specification should not be understood as the limitation of the utility model.

Claims

1. A battery heating mechanism, characterized in that: include: A base body is provided with a plurality of through holes arranged at intervals along a first direction and a plurality of mounting holes arranged at intervals along the first direction; as well as multiple heating elements; Wherein, at least one of the heating elements is installed in the corresponding installation hole and is located between two corresponding adjacent through holes.

2. The battery heating mechanism according to claim 1, characterized in that: 0.65≤H1 / T1≤0.75; wherein T1 is the thickness of the substrate, H1 is the height of the through hole in the thickness direction of the substrate, and the thickness direction of the substrate intersects with the first direction.

3. The battery heating mechanism according to claim 1, characterized in that: The through hole has two end portions opposite to each other in the thickness direction of the substrate and a middle portion located between the two end portions, and the thickness direction of the substrate intersects with the first direction; wherein, in the two hole walls of the through hole opposite to each other in the first direction, each hole wall protrudes toward the other hole wall so that the middle portion of the through hole is narrower than the end portions of the through hole.

4. The battery heating mechanism according to claim 3, characterized in that: The through hole at least partially overlaps with the adjacent mounting hole in the thickness direction.

5. The battery heating mechanism according to claim 3, characterized in that: 1.4≤W1 / W2≤1.6; wherein W1 is the width of the end portion of the through hole, and W2 is the width of the middle portion of the through hole.

6. The battery heating mechanism according to claim 1, characterized in that: 0.1≤T2 / T1≤0.15; wherein T2 is the distance between the hole wall of the mounting hole and the hole wall of the through hole in the first direction, and T1 is the thickness of the substrate.

7. The battery heating mechanism according to claim 6, characterized in that: The distance between the centers of two adjacent mounting holes is equal to the thickness of the base.

8. The battery heating mechanism according to any one of claims 1 to 7, characterized in that: Also included is a reinforcement assembly connected to the bottom of the base.

9. The battery heating mechanism according to claim 8, characterized in that: The reinforcement assembly includes two first reinforcement members and a second reinforcement member arranged at intervals; the two first reinforcement members are respectively connected to the bottom of the two ends of the base in the first direction, and the second reinforcement member is located between the two first reinforcement members, 0.5≤W3 / W4≤1; wherein W3 is the width of the second reinforcement member, and W4 is the width of the first reinforcement member.

10. The battery heating mechanism according to claim 8, characterized in that: The base and the reinforcement component are integrally formed.

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