Lithium battery with efficient heat dissipation structure

Abstract

The utility model discloses a lithium battery with a high-efficiency heat dissipation structure, and relates to the technical field of lithium batteries, in particular to the lithium battery with the high-efficiency heat dissipation structure, which comprises an outer cover in which a battery is arranged, and is characterized in that an assembling mechanism is arranged on the outer cover and is used for assembling battery modules; the outer cover is provided with a heat dissipation structure and is used for cooling and heat dissipation, the assembling mechanism comprises a connecting assembly, the connecting assembly comprises connecting bases fixed to the two sides of the right end of the outer cover, the two sides of the inner wall of the right end of the outer cover are each fixedly provided with two fixing frames, spring pieces are movably installed in the fixing frames, and the two sides of the interior of the right end of the outer cover are each slidably provided with two pin heads in a penetrating mode; the problems that lithium batteries are designed to be independent units and can only be assembled through additional external connecting pieces, so that the lithium batteries cannot be tightly integrated together, and the performance and the service life of the batteries are influenced due to the fact that the temperature distribution of the batteries is not uniform during working are possibly caused are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium batteries, in particular to a lithium battery with a high-efficiency heat dissipation structure. Background Art

[0002] Lithium batteries are a type of battery that uses lithium metal or lithium alloy as positive / negative electrode materials and non-aqueous electrolyte solutions. Its working principle is based on the embedding and de-embedding process of lithium ions. During charging, the lithium ions generated by the positive electrode move to the negative electrode through the electrolyte and embed into the micropores of the negative electrode material; during discharge, these lithium ions are released from the negative electrode and return to the positive electrode;

[0003] After checking the public (announcement) number: CN218602544U, a lithium battery with an efficient heat dissipation structure is disclosed. This technology discloses "a lithium battery with an efficient heat dissipation structure, which relates to the technical field of lithium battery heat dissipation structure. The utility model includes a storage shell and a lithium battery body, the inner wall of the storage shell is fixedly connected with a support plate, the bottom surface of the support plate is provided with a mounting groove, a plurality of mounting frames are installed inside the mounting groove, a cold fan is installed inside the mounting frame, a heat spreader is installed on the relative inner surface of the storage shell, a heat dissipation copper tube is connected inside the heat spreader, and a plurality of air outlets are opened on the relative side walls of the storage shell. The technical scheme has "through the provision of a heat spreader, a heat dissipation copper tube, an auxiliary copper tube and a heat-conducting bottom plate, it is ensured that the peripheral side of the lithium battery can be evenly heat-conducted, and the auxiliary copper tube introduces the heat of the heat dissipation copper tube into the heat-conducting bottom plate, so that the bottom of the structure can be stably heat-conducting" and other technical effects;

[0004] Since lithium batteries are designed as independent units and require additional external connectors for assembly, they cannot be tightly integrated together. This design not only increases the space occupied, limiting the overall size and capacity of the battery pack, but also makes it impossible to effectively share heat or perform unified thermal management between independent lithium batteries. This may lead to uneven temperature distribution of the battery during operation, which in turn affects the performance and life of the battery. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides a lithium battery with an efficient heat dissipation structure, wherein each adjacent battery unit can be individually assembled and fixed, so that the battery units can be tightly integrated together, saving space.

[0006] To achieve the above purpose, the utility model is implemented by the following technical solutions: a lithium battery with an efficient heat dissipation structure, including an outer cover, a battery is installed inside the outer cover, characterized in that: an assembly mechanism is provided on the outer cover and used for assembling between battery modules, a heat dissipation structure is provided on the outer cover and used for cooling and heat dissipation, and the assembly mechanism includes:

[0007] The connection assembly includes a connection seat fixed on both sides of the right end of the outer cover, two fixing frames fixed on both sides of the inner wall of the right end of the outer cover, a spring sheet movably installed inside the fixing frame, and two pin heads slidably installed on both sides of the inner wall of the right end of the outer cover;

[0008] The matching component comprises a connecting frame fixed on both sides of the left end of the outer cover and matched with the connecting seat, and two pin holes are arranged inside the connecting frame and matched with the pin head.

[0009] Preferably, the heat dissipation structure includes an air duct assembly fixed to the bottom of the outer cover, a radiator is installed inside the air duct assembly and fits with the bottom of the battery, a plurality of fans are installed at the front end of the interior of the air duct assembly, and a plurality of heat dissipation holes are opened at the rear end of the air duct assembly at equal distances.

[0010] Preferably, a circle of limiting frames is fixed to the upper end of the inner wall of the outer cover, and a circle of protrusions is fixed to the upper end of the outer wall of the battery and cooperates with the limiting frames.

[0011] Preferably, a top cover is installed at the upper end of the outer cover, and four corners of the top cover are provided with recesses.

[0012] Preferably, through holes are provided on both sides of the interior of the top cover and respectively cooperate with the positive and negative terminals on the outer cover.

[0013] Preferably, the outer end of the pin head is a hemispherical structure, and the inner end of the pin head fits with the surface of the spring sheet.

[0014] Beneficial Effects

[0015] The utility model provides a lithium battery with an efficient heat dissipation structure. Compared with the prior art, it has the following beneficial effects:

[0016] (1) When each battery unit needs to be assembled together for use, the connection seat on the left outer cover can be inserted and connected with the connection frame on the right outer cover. When fully inserted, the pressure of the spring sheet rebounds and pushes the pin head into the pin hole, thereby fixing the connection seat and the connection frame, so that each adjacent battery unit can be assembled and fixed separately.

[0017] (2) When the battery is placed in the outer cover, the battery can be placed on the limit frame on the inner wall of the outer cover through the convex frame of the outer wall and supported, and the bottom of the battery can fit with the radiator. Then the top cover is installed on the outer cover. The positive and negative terminals on the outer cover can extend outward through the through holes on both sides respectively, and bolts are installed on the concave edges of the four corners. The bolts penetrate the convex frame on the outer wall of the battery and are threadedly installed on the limit frame, thereby fixing the battery in the outer cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front structural schematic diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the back structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the split structure of the utility model;

[0021] Figure 4 For this utility model Figure 3 Schematic diagram of the structure of the local A in the middle;

[0022] Figure 5 It is a cross-sectional structural schematic diagram of the utility model.

[0023] In the figure: 1. outer cover; 2. assembly mechanism; 21. connection component; 211. connection seat; 212. fixing frame; 213. spring sheet; 214. pin head; 22. matching component; 221. connection frame; 222. pin hole; 3. heat dissipation structure; 31. air duct component; 32. radiator; 33. fan; 34. heat dissipation hole; 4. top cover; 5. concave; 6. through hole; 7. battery; 8. limit frame. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-5 The utility model provides a technical solution of a lithium battery with an efficient heat dissipation structure: a lithium battery with an efficient heat dissipation structure, comprising an outer cover 1, a battery 7 is installed inside the outer cover 1, an assembly mechanism 2 is provided on the outer cover 1 and is used for assembly between battery modules, a heat dissipation structure 3 is provided on the outer cover 1 and is used for cooling and heat dissipation, and the assembly mechanism 2 includes:

[0026] The connecting assembly 21 comprises a connecting seat 211 fixed on both sides of the right end of the outer cover 1, two fixing frames 212 fixed on both sides of the inner wall of the right end of the outer cover 1, a spring sheet 213 is movably installed inside the fixing frame 212, and two pin heads 214 are slidably installed on both sides of the inner wall of the right end of the outer cover 1;

[0027] The matching component 22 includes a connecting frame 221 fixed on both sides of the left end of the outer cover 1 and matched with the connecting seat 211. Two pin holes 222 are formed inside the connecting frame 221 and matched with the pin head 214.

[0028] In this embodiment, when the battery units need to be assembled together for use, the connection seat 211 on the left outer cover 1 and the connection frame 221 on the right outer cover 1 can be inserted and connected. When fully inserted, the pressure of the spring sheet 213 rebounds and pushes the pin head 214 into the pin hole 222, thereby fixing the connection seat 211 and the connection frame 221, so that each adjacent battery unit can be assembled and fixed separately.

[0029] Specifically, the heat dissipation structure 3 includes an air duct assembly 31 fixed to the bottom of the outer cover 1, a radiator 32 is installed inside the air duct assembly 31 and fits with the bottom of the battery 7, a plurality of fans 33 are installed at the front end of the air duct assembly 31, and a plurality of heat dissipation holes 34 are arranged at equal distances at the rear end of the air duct assembly 31.

[0030] In this embodiment, the heat generated by the battery 7 is absorbed by the radiator 32, and the heat is quickly transferred from the heat source to the surface of the fins. The fins have a larger surface area, and the heat can be distributed more evenly. Heat is exchanged with the surrounding air through the surface of the fins. Then, an airflow is generated by the fan 33, and the air is blown toward the radiator 32, so that the heat on the surface is transferred to the air molecules. The air molecules are heated when they contact the surface of the object, and then are carried away by the fan 33 and exchange heat with the low-temperature air in the environment.

[0031] Specifically, a circle of limiting frames 8 are fixed to the upper end of the inner wall of the outer cover 1 , and a circle of protrusions are fixed to the upper end of the outer wall of the battery 7 and cooperate with the limiting frames 8 .

[0032] In this embodiment, when the battery 7 is placed in the outer cover 1 , the battery 7 can be placed on the limit frame 8 on the inner wall of the outer cover 1 through the protrusions on the outer wall to support it, and at the same time, the bottom of the battery 7 can fit with the radiator 32 .

[0033] Specifically, a top cover 4 is installed at the upper end of the outer cover 1 , and four corners of the top cover 4 are provided with recesses 5 .

[0034] In this embodiment, after the battery 7 is placed inside the outer cover 1, the top cover 4 is covered on the outer cover 1, and bolts are installed on the recesses 5 at the four corners. The bolts penetrate the protrusions on the outer wall of the battery 7 and are threadedly installed on the limit frame 8, thereby fixing the battery 7 in the outer cover 1.

[0035] Specifically, through holes 6 are provided on both sides of the interior of the top cover 4 and respectively cooperate with the positive and negative terminals on the outer cover 1 .

[0036] In this embodiment, when the top cover 4 is mounted on the outer cover 1 , the positive and negative terminals on the outer cover 1 can extend outwards through the through holes 6 on both sides respectively.

[0037] Specifically, the outer end of the pin head 214 is a hemispherical structure, and the inner end of the pin head 214 is in contact with the surface of the spring sheet 213 .

[0038] In this embodiment, the outer end of the pin head 214 is a hemispherical structure, so that the connecting frame 221 can push and squeeze the connecting seat 211 when it is inserted into the connecting seat 211 and contacts the pin head 214.

[0039] The working principle and use process of the utility model are as follows: first, when the battery 7 is placed in the outer cover 1, the battery 7 can be placed on the limit frame 8 on the inner wall of the outer cover 1 through the convex frame of the outer wall and support it, and at the same time, the bottom of the battery 7 can fit with the radiator 32, and then the top cover 4 is installed on the outer cover 1, and the positive and negative terminals on the outer cover 1 can extend outward through the through holes 6 on both sides respectively, and bolts are installed on the concave 5 at the four corners, and the bolts penetrate the convex frame of the outer wall of the battery 7 and are threadedly installed with the limit frame 8, so that the battery 7 is fixed in the outer cover 1; when each battery unit needs to be assembled together for use, the connecting seat 211 on the left outer cover 1 and the connecting frame 221 on the right outer cover 1 can be inserted and connected. When fully inserted, the pin head 214 is pushed into the pin hole 222 by the rebound pressure of the spring sheet 213, so that the connecting seat 211 and the connecting frame 221 are fixed, so that each adjacent battery unit can be assembled and fixed separately.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lithium battery with an efficient heat dissipation structure, comprising an outer cover (1), a battery (7) being installed inside the outer cover (1), characterized in that: The outer cover (1) is provided with an assembly mechanism (2) for assembling battery modules, and the outer cover (1) is provided with a heat dissipation structure (3) for cooling and dissipating heat. The assembly mechanism (2) comprises: The connecting assembly (21) comprises a connecting seat (211) fixed on both sides of the right end of the outer cover (1), two fixing frames (212) fixed on both sides of the inner wall of the right end of the outer cover (1), a spring sheet (213) movably installed inside the fixing frame (212), and two pin heads (214) slidably installed through both sides of the inner wall of the right end of the outer cover (1); The matching component (22) comprises a connecting frame (221) fixed on both sides of the left end of the outer cover (1) and matched with the connecting seat (211); two pin holes (222) are provided inside the connecting frame (221) and matched with the pin head (214).

2. A lithium battery with a high-efficiency heat dissipation structure according to claim 1, characterized in that: The heat dissipation structure (3) comprises an air duct assembly (31) fixed to the bottom of the outer cover (1); a radiator (32) is installed inside the air duct assembly (31) and fits with the bottom of the battery (7); a plurality of fans (33) are installed at the front end of the air duct assembly (31); and a plurality of heat dissipation holes (34) arranged at equal distances are opened at the rear end of the air duct assembly (31).

3. The lithium battery with a high-efficiency heat dissipation structure according to claim 1, characterized in that: A circle of limiting frames (8) are fixed to the upper end of the inner wall of the outer cover (1), and a circle of protrusions are fixed to the upper end of the outer wall of the battery (7) and cooperate with the limiting frames (8).

4. A lithium battery with a high-efficiency heat dissipation structure according to claim 3, characterized in that: A top cover (4) is installed at the upper end of the outer cover (1), and four corners of the top cover (4) are provided with recesses (5).

5. A lithium battery with a high-efficiency heat dissipation structure according to claim 4, characterized in that: Through holes (6) are provided on both sides of the interior of the top cover (4) and respectively cooperate with the positive and negative terminals on the outer cover (1).

6. The lithium battery with a high-efficiency heat dissipation structure according to claim 1, characterized in that: The outer end of the pin head (214) is a hemispherical structure, and the inner end of the pin head (214) is in contact with the surface of the spring sheet (213).

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