Lithium battery pack convenient for heat dissipation

Abstract

The utility model discloses a lithium battery pack convenient for heat dissipation, which belongs to the field of lithium battery packs and comprises a lithium battery pack packaging shell, a top plate is detachably mounted at the top end of the lithium battery pack packaging shell, and three fin plates are fixedly mounted on each of the front side and the rear side of the top plate. A fixing frame is fixedly installed between every two adjacent fin plates located on the same side, a heat dissipation structure is rotatably installed below the fixing frame, sliding grooves are formed in the left end and the right end of the top plate, and a fixing frame is fixedly installed at the position, located above the sliding grooves, of the top surface of the top plate. In addition, the top end of the battery pack can be supported and protected by a certain area, the protective plate is convenient to detach from the inside of the battery pack, and the battery pack is convenient to store and transport. And therefore, the later maintenance efficiency of the worker on the internal structural parts is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of lithium battery group more specifically, relate to a lithium battery group of convenient heat dissipation. BACKGROUND

[0002] Lithium battery is a kind of by lithium metal or lithium alloy as negative material, using non-aqueous electrolyte solution battery, patent publication No. CN217881660U discloses a lithium battery group of convenient heat dissipation, including lithium battery group body and heat dissipation box, the lithium battery group body is arranged in the heat dissipation box interior, the heat dissipation box includes bottom plate and side plate, the bottom plate is used to support the lithium battery group body, the bottom plate interior is provided with cavity, the cavity is placed with refrigeration liquid, it further includes first heat conduction plate, the first heat conduction plate and the lithium battery group body are connected, the heat on the lithium battery group body can be dissipated through the first heat conduction plate. The refrigeration liquid in cavity is cooled to the bottom plate, and then the battery group body on the bottom plate is cooled. At the same time, through the setting of first heat conduction plate, one end of first heat conduction plate is connected with battery group body, and the other end is connected with the surface of low-temperature object, such as the shell of electric vehicle, the heat of lithium battery group is transferred out through first heat conduction plate, and then the lithium battery group is cooled.

[0003] In the prior art, although heat dissipation is carried out by liquid cooling, the external heat dissipation medium is air, so the heat dissipation efficiency is related to the air flow rate, but the prior art does not actively accelerate the air flow rate, thereby limiting the heat dissipation efficiency of the lithium battery group to a certain extent, reducing the practicability of the device, so a lithium battery group capable of actively accelerating the gas flow rate is required. UTILITY MODEL CONTENTS

[0004] 1. Technical problem to be solved

[0005] In view of the problems existing in the prior art, the purpose of the utility model is to provide a lithium battery group of convenient heat dissipation, which can actively accelerate the airflow around the battery group, thereby improving the heat dissipation rate around it, ensuring that the internal heat can be quickly volatilized, preventing accumulation around the battery group, in addition, the top end of the battery group can be supported and protected by a certain area, and the protection plate is convenient to remove from the inside of the battery group, thereby further improving the maintenance efficiency of the internal structural parts by the staff later.

[0006] 2. Technical scheme

[0007] To solve the above problems, the utility model adopts the following technical scheme.

[0008] The utility model provides a lithium battery pack of convenient heat dissipation, including lithium battery pack package shell, the top of lithium battery pack package shell can detachably install top board, the front and rear sides of top board all are fixedly installed with three fin plates, the fixed frame is fixedly installed between the same side adjacent two of fin plate, the lower side of fixed frame rotatably installs heat dissipation structure, the left and right ends of top board all are set up sliding slot, the top of top board is fixedly installed with fixed frame in the upper side of sliding slot, the inside rotatable installation of fixed frame has locking assembly.

[0009] Further, the locking assembly includes an insert plate, a transmission plate is fixedly installed at the top end of the insert plate, a screw rod is threadedly installed in the interior of the transmission plate, limit rings are fixedly installed at the left and right ends of the screw rod, a rotating rod is fixedly installed at one side of the limit ring, and a spring is fixedly connected to one side of the insert plate.

[0010] Further, the insert plate is slidingly installed in the interior of the sliding slot, and the spring is fixedly connected to the inner wall surface of the top plate through the sliding slot.

[0011] Further, the limit ring is rotatably installed in the interior of the fixed frame.

[0012] Further, the heat dissipation structure includes a motor, a gear one is fixedly sleeved to the output shaft of the motor, a toothed belt is engaged with the surface of the gear one, gear twos are engaged with the interiors of the left and right ends of the toothed belt, a worm is fixedly installed at the outer side of the gear two, an annular worm gear is engaged with the surface of the worm, a fan blade is fixedly installed to the inner wall of the annular worm gear, and a limiting frame is fixedly installed to the middle portion of the fan blade.

[0013] Further, the limiting frame is rotatably installed at the bottom end of the fixed frame, and the motor is fixedly installed in the interior of the top plate.

[0014] Further, a limiting column is integrally formed at the outer end of the worm, the limiting column is rotatably installed in the interior of the top plate, and the engaging surfaces of the gear one, the gear two, and the toothed belt are all toothed surfaces.

[0015] 3. Beneficial effects

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] (1) The heat dissipation structure can quickly dissipate the heat accumulated in the lithium battery pack package shell, prevent the heat from being accumulated around the heat dissipation structure due to air medium, and thus further improve the heat dissipation efficiency of the lithium battery pack and the overall practicality of the device.

[0018] (2) The utility model discloses a locking assembly can be used to the quick disassembly of the top plate in the lithium battery pack packaging shell, thereby facilitating the staff to overhaul the structural member of the heat dissipation structure in the top plate, simple operation, and the top plate can also be used to protect the top surface of the lithium battery pack packaging shell to a certain extent, improve the anti -impact deformation effect of the whole battery. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the whole structure schematic diagram in the utility model;

[0020] Figure 2 It is the top plate structure schematic diagram in the utility model;

[0021] Figure 3 It is the locking assembly structure schematic diagram in the utility model;

[0022] Figure 4 It is the heat dissipation structure structure schematic diagram in the utility model.

[0023] Mark explanation in drawing:

[0024] 1, lithium battery pack packaging shell;2, top plate;3, fin plate;4, sliding groove;5, fixed frame;6, locking assembly;7, fixed frame;8, heat dissipation structure;601, plugboard;602, transmission plate;603, screw;604, limit ring;605, rotating rod;606, spring;801, motor;802, gear one;803, toothed belt;804, gear two;805, worm;806, ring worm wheel;807, fan blade;808, limit frame. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings of the embodiments of the utility model; obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments, based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor are within the protection scope of the utility model.

[0026] In the description of the utility model, it is necessary to explain that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0027] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, the term '' install '' '' set '' '' set / connect '' '' connect '' and so on, should do the broad sense understanding, for example '' connect '', can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be directly connected, also can be indirectly connected through the intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0028] Embodiment 1:

[0029] Please refer to Figures 1-4 A lithium battery pack convenient for heat dissipation, including lithium battery pack packaging shell 1, the top of the lithium battery pack packaging shell 1 is detachably installed with top plate 2, the front and rear sides of the top plate 2 are fixedly installed with three fin plates 3, the adjacent two between the same side of the fin plate 3 are fixedly installed with fixed frame 7, the lower side of the fixed frame 7 is rotatably installed with heat dissipation structure 8, the left and right ends of the top plate 2 are provided with sliding groove 4, the top surface of the top plate 2 is fixedly installed with fixed frame 5 above the sliding groove 4, the inside of the fixed frame 5 is rotatably installed with locking assembly 6;

[0030] It should be noted that the specific structure and internal structure of the lithium battery pack packaging shell 1 in the application are the same as the battery pack outer surrounding frame in the comparative document, and the internal structure and specific structure and function of the lithium battery pack packaging shell 1 in the application are not described in detail.

[0031] The locking assembly 6 includes an insert plate 601, a transmission plate 602 is fixedly installed at the top end of the insert plate 601, a threaded rod 603 is threadedly installed in the inside of the transmission plate 602, limit rings 604 are fixedly installed at the left and right ends of the threaded rod 603, a rotating rod 605 is fixedly installed on one side of the limit ring 604, a spring 606 is fixedly connected to one side of the insert plate 601, the insert plate 601 is slidably installed in the inside of the sliding groove 4, the spring 606 is fixedly connected to the inner wall surface of the top plate 2 through the sliding groove 4, and the limit ring 604 is rotatably installed in the inside of the fixed frame 5.

[0032] Specifically, the limit ring 604 and the fixed frame 5 ensure the rotation of the threaded rod 603, ensure that it can always rotate in place, achieve the purpose of stable transmission, and the insert plate 601 can be clamped in the groove corresponding to the inner wall of the lithium battery pack packaging shell 1 to complete clamping and fixing, realize the overall connection and fixing with the lithium battery pack packaging shell 1, and the coverage area of the two sides of the top plate 2 is increased through the fin plates 3, further protecting the battery pack at the bottom end from being directly impacted and deformed.

[0033] The heat dissipation structure 8 comprises a motor 801, the output shaft of the motor 801 is fixedly sleeved with a gear one 802, the surface of the gear one 802 is engaged with a toothed belt 803, the inside of the left and right two ends of the toothed belt 803 is engaged with a gear two 804, the outer side of the gear two 804 is fixedly installed with a worm 805, the surface of the worm 805 is engaged with an annular worm wheel 806, the inner wall of the annular worm wheel 806 is fixedly installed with a fan blade 807, the middle part of the fan blade 807 is fixedly installed with a limiting frame 808, the limiting frame 808 is rotatably installed at the bottom end of the fixed frame 7, the motor 801 is fixedly installed in the inside of the top plate 2, the outer end of the worm 805 is integrally formed with a limiting column, the limiting column is rotatably installed in the inside of the top plate 2, and the engaging surfaces of the gear one 802 and the gear two 804 and the toothed belt 803 are all toothed surfaces.

[0034] Specifically, the rotation connection of the fixed frame 7 and the limiting frame 808 enables the rotation of the annular worm wheel 806 to always have the purpose of horizontal original position rotation. Figure 2 It can be seen that part of the annular worm wheel 806 rotates in the inside of the top plate 2, and the same can achieve the purpose of limiting support, secondly, the toothed engagement of the gear one 802, the toothed belt 803 and the gear two 804 can prevent the gear one 802 from being unable to synchronously drive the toothed belt 803 to rotate due to insufficient horizontal position angle when transmitting, thereby achieving the purpose of ensuring that the gear one 802 synchronously drives the gear two 804 as a whole to rotate, and finally, the limiting column at the end of the worm 805 can also achieve the purpose of rotation limiting.

[0035] It should be noted that there are various starting modes of the motor 801, in addition to the key switch starting, the temperature sensor can also be used for identification control start and stop, which belongs to the existing mature technology, therefore, the specific switch mode of the motor 801 will not be described in detail in the application.

[0036] The working principle of the utility model is: when the lithium battery pack packaging shell 1 and the internal battery pack are assembled, the top plate 2 is placed on the top, then the rotating screw 603 drives the transmission plate 602 to make the plug plate 601 inserted into the groove inside the lithium battery pack packaging shell 1 to complete the fixation of the top plate 2, then the motor 801 is started to drive the gear one 802 to rotate, the toothed belt 803 and the gear two 804 are cooperated to drive the worm 805 to rotate, the annular worm wheel 806 drives the internal fan blade 807 to continuously rotate, the internal part of the lithium battery pack packaging shell 1 is continuously subjected to airflow surge, and the heat dissipation efficiency is increased.

[0037] The above merely describes a preferred embodiment of the present application; the scope of protection of the present application is not limited thereto. Any skilled person in the art, according to the technical scheme and improvement concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered in the scope of protection of the present application.

Claims

1. A lithium battery pack with easy heat dissipation, comprising a lithium battery pack packaging shell (1), characterized in that: The top end of the lithium battery pack packaging shell (1) is detachably mounted with a top plate (2), both sides of the top plate (2) are fixedly installed with three fin plates (3), the fin plates (3) are fixedly installed with a fixing frame (7) between the same side adjacent two, the lower side of the fixing frame (7) is rotatably installed with a heat dissipation structure (8), both ends of the top plate (2) are provided with sliding grooves (4), the top surface of the top plate (2) is fixedly installed with a second fixing frame (5) above the sliding grooves (4), and the second fixing frame (5) is rotatably installed with a locking assembly (6) in the inside.

2. The lithium battery pack of claim 1, wherein: The locking assembly (6) comprises an insertion plate (601), the top end of the insertion plate (601) is fixedly installed with a transmission plate (602), the inside of the transmission plate (602) is threadedly installed with a screw rod (603), both ends of the screw rod (603) are fixedly installed with a limiting ring (604), one side of the limiting ring (604) is fixedly installed with a rotating rod (605), and one side of the insertion plate (601) is fixedly connected with a spring (606).

3. The lithium battery pack of claim 2, wherein: The insertion plate (601) is slidably installed in the sliding groove (4), and the spring (606) is fixedly connected to the inner wall surface of the top plate (2) through the sliding groove (4).

4. The lithium battery pack of claim 2, wherein: The limiting ring (604) is rotatably installed in the second fixing frame (5).

5. The lithium battery pack of claim 1, wherein: The heat dissipation structure (8) comprises a motor (801), the output shaft of the motor (801) is fixedly sleeved with a gear one (802), the surface of the gear one (802) is engaged with a toothed belt (803), both ends of the toothed belt (803) are engaged with a gear two (804) in the inside, the outer side of the gear two (804) is fixedly installed with a worm (805), the surface of the worm (805) is engaged with an annular worm wheel (806), the inner wall of the annular worm wheel (806) is fixedly installed with a fan blade (807), and the middle part of the fan blade (807) is fixedly installed with a limiting frame (808).

6. The lithium battery pack of claim 5, wherein: The limiting frame (808) is rotatably installed at the bottom end of the fixing frame (7), and the motor (801) is fixedly installed in the inside of the top plate (2).

7. The lithium battery pack of claim 5, wherein: The outer end of the worm (805) is integrally formed with a limiting column, the limiting column is rotatably installed in the inside of the top plate (2), and the fitting surfaces of the gear one (802) and the gear two (804) and the toothed belt (803) are all toothed surfaces.

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