Intelligent temperature control type storage battery lithium battery pack

Abstract

The utility model relates to the technical field of storage battery lithium battery pack temperature control, and discloses an intelligent temperature control type storage battery lithium battery pack, which comprises a heating seat, a fastener, a lithium battery block and a heat dissipation device consisting of a heat dissipation frame, a fan and a protective grid, the lithium battery pack comprises a heat dissipation device and a fastener, the fastener is connected with the top end of the heat dissipation device in a matched mode through an adaptive bolt, a heating base is arranged at the bottom end of the heat dissipation device, the heating base is opposite to the fastener in position, and a plurality of lithium battery blocks which are clamped at equal intervals are arranged in a cavity formed by the heat dissipation device, the heating base and the fastener. The temperature of a plurality of internal lithium battery blocks can be effectively controlled, the battery pack is ensured to always work in a proper temperature interval, the service life of the battery is prolonged, the performance and safety of the battery are improved, and further development of the new energy industry is promoted.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery lithium battery pack temperature control technical field, concretely is a kind of intelligent temperature control type battery lithium battery pack. BACKGROUND

[0002] With the vigorous development of new energy industry, battery lithium battery pack is widely used in many fields, in electric vehicle field, lithium battery pack is as core power source, with its high energy density, long endurance, effectively promotes electric vehicle from concept to popularization, for relieving energy crisis and reducing exhaust emission contribution is remarkable, in energy storage system aspect, lithium battery pack can efficiently store electric energy, realizes excess electricity recovery and peak clipping, helps grid stable operation, indispensable in wind power field, photovoltaic power station and other new energy power generation scenes.

[0003] Lithium battery performance is significantly influenced by temperature, temperature is too high to easily cause thermal runaway, lead to battery life shortening, performance decline or even exist safety hazard, temperature is too low to make battery internal resistance increase, charge-discharge efficiency reduces, traditional battery pack temperature control means, such as simple air cooling or water cooling, difficult to accurately, intelligently adjust according to battery real-time temperature change, cannot fully meet the demand of lithium battery efficient, safe operation, for this purpose, we propose a kind of intelligent temperature control type battery lithium battery pack. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies of prior art, the utility model provides an intelligent temperature control type battery lithium battery pack, solves the above problems.

[0005] To realize the above-mentioned purpose, the utility model provides the following technical scheme: an intelligent temperature control type battery lithium battery pack, including heating seat, fastener and lithium battery block, and the heat sink frame, fan and protective grid are composed of heat dissipation device, the top end of the heat dissipation device is provided with fastener, the fastener is connected with the top end of the heat dissipation device through the matching bolt, and the bottom end of the heat dissipation device is provided with heating seat, the heating seat is opposite to the position of fastener, and the cavity formed by the heat dissipation device, heating seat and fastener is provided with a plurality of lithium battery blocks that are equidistantly clamped.

[0006] Preferably, the main body of the heat dissipation device is a heat sink frame, and two groups of fans and protective grids are arranged in the center of the two opposite side walls of the outer side of the heat sink frame in an axisymmetric distribution, the protective grids are arranged on the outer side of the fans, and the fans and the protective grids are connected with the side walls of the heat sink frame through the matching screws.

[0007] Preferably, the two opposite side walls outside the heat dissipation frame are provided with two sets of axisymmetrically distributed heat dissipation fins, and the single fins of the heat dissipation fin set are in arc shape, and the center of the end face of the heat dissipation fin set is provided with a rectangular placement slot, the rectangular placement slot is in rectangular structure, and the four corners of the rectangular placement slot are provided with fixing holes, and the fixing holes are connected with the four corners of the fan and the protective grating through adaptive screws.

[0008] Preferably, the two opposite side walls of the heat dissipation frame are provided with two axisymmetrically distributed connecting holes one at the bottom end, the connecting holes one are connected with the heating seat, and the heat dissipation frame is provided with connecting holes two corresponding to the connecting holes one at the top end, the connecting holes two are connected with the fasteners, the top end and the bottom end of the heat dissipation frame are in open structure, and a set of copper heat conduction partitions are welded inside the heat dissipation frame, the adjacent copper heat conduction partitions are connected with the lithium battery block, and a set of matching grooves are distributed inside the heat dissipation frame.

[0009] Preferably, the heating seat is provided with a set of heating film rods in three rows and four columns at the center of the top end, and the heating film rods are connected with the matching grooves, the heating film rods are provided with a set of setting holes at the middle position, the temperature sensor is connected with the setting hole, and the heating seat is provided with connecting holes three at the four corners of the bottom end, and the connecting holes three are connected with the connecting holes one through adaptive bolts.

[0010] Preferably, the fastener is in arc shape, and the four corners of the bottom end of the fastener are provided with connecting holes four, the connecting holes four are connected with the connecting holes two through adaptive screws, and a set of ventilation grooves are distributed on the top end of the fastener.

[0011] Compared with the prior art, the intelligent temperature control type storage battery lithium battery pack has the following beneficial effects:

[0012] 1、The intelligent temperature control type storage battery lithium battery pack can significantly improve the performance and service life of the lithium battery, the precise heat dissipation system can quickly cool down when the temperature is too high, heat runaway is avoided, the battery life is prevented from being shortened and the performance is prevented from being reduced, safety hazards are avoided, the heating film rod can timely warm up when the temperature is too low, the battery internal resistance is reduced, the charging and discharging efficiency is improved, the lithium battery block is always maintained in the best working temperature range through intelligent temperature control, the battery performance is stable, the service life is prolonged, the cost and frequency of replacing the battery are reduced, and the device is provided with powerful guarantee for long-term stable operation in the field of electric vehicles and energy storage systems.

[0013] 2、The intelligent temperature control type storage battery lithium battery pack has obvious advantages in actual application, greatly improves use convenience and reliability, can automatically adjust according to battery temperature changes in real time during electric vehicle driving, does not need manual intervention, guarantees stable power output, improves driving experience, guarantees efficient storage and release of electric energy in an energy storage system, realizes surplus electricity recovery and peak load shifting, helps power grid stability, the heat dissipation device and the heating seat are closely matched, the structure is compact, installation and maintenance are simple, meanwhile, components such as the fan and the heating film rod have low energy consumption, the temperature control effect is improved while energy consumption is reduced, and good economy and practicality are achieved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structure schematic view of the intelligent temperature control type storage battery lithium battery pack of the utility model.

[0015] Figure 2 It is a sectional view schematic view of the intelligent temperature control type storage battery lithium battery pack of the utility model.

[0016] Figure 3 It is a heat dissipation frame schematic view of the utility model.

[0017] Figure 4 It is a heating seat schematic view of the utility model.

[0018] Figure 5 It is a fastener schematic view of the utility model.

[0019] In the drawing: 1, heat dissipation frame; 2, heating seat; 3, fastener; 4, lithium battery block; 5, fan; 6, protective grating; 7, temperature sensor; 8, heat dissipation fin group; 9, rectangular placement groove; 10, fixed hole; 11, connecting hole one; 12, connecting hole two; 13, copper heat conduction partition plate; 14, fitting groove; 15, heating film rod; 16, arrangement hole; 17, connecting hole three; 18, connecting hole four; 19, ventilation groove. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0021] Please refer to Figures 1-5The utility model provides a kind of intelligent temperature control type battery lithium battery pack, including heating seat 2, fastener 3 and lithium battery block 4, and heat sink device consisting of heat sink frame 1, fan 5 and protective grid 6, heat sink device top end is equipped with fastener 3, fastener 3 is connected with the top end of heat sink device by adapting bolt, and heat sink device bottom end is equipped with heating seat 2, heating seat 2 is opposite with fastener 3 position, and the cavity of heat sink device, heating seat 2 and fastener 3 are equipped with multiple lithium battery block 4 being equidistantly clamped inside.

[0022] Further, the main body of the heat sink device is the heat sink frame 1, and two groups of fans 5 and protective grids 6 are arranged in an axisymmetric distribution on the centers of the two opposite side walls of the outer side of the heat sink frame 1. The protective grids 6 correspond to the outer sides of the fans 5, and the fans 5 and the protective grids 6 are connected to the side walls of the heat sink frame 1 through adapting screws at the four corners. After receiving the temperature feedback of the multiple temperature sensors 7 on the heating film rod 15, the heat sink device can quickly and reasonably adjust the rotating power of the two groups of fans 5 arranged in an axisymmetric distribution, accelerate the circulation rate of air, and improve the heat dissipation quality.

[0023] Further, the two opposite side walls of the outer side of the heat sink frame 1 are provided with two groups of heat dissipation fins 8 arranged in an axisymmetric distribution, and the single fins of the heat dissipation fin groups 8 are in an arc structure. Rectangular placement grooves 9 are formed in the centers of the end faces of the heat dissipation fin groups 8, and the rectangular placement grooves 9 are in a rectangular structure. The four corners of the rectangular placement grooves 9 are provided with fixing holes 10, and the fixing holes 10 are connected to the four corners of the fans 5 and the protective grids 6 through adapting screws. The single fins of the heat dissipation fin groups 8 are in an arc structure, which facilitates the rapid circulation of air and improves the heat dissipation quality.

[0024] Further, two connection holes one 11 arranged in an axisymmetric distribution are formed in the bottom ends of the two opposite side walls of the heat sink frame 1, and the connection holes one 11 are connected to the heating seat 2. The top end of the heat sink frame 1 is provided with a connection hole two 12 corresponding to the connection hole one 11, and the connection hole two 12 is connected to the fastener 3. The top end and the bottom end of the heat sink frame 1 are both in an open structure, and a group of copper heat-conducting partitions 13 arranged in an equidistant distribution are welded inside the heat sink frame 1. The copper heat-conducting partitions 13 are clamped between the adjacent lithium battery blocks 4, and a group of matching grooves 14 arranged in an equidistant distribution are formed in the inside of the heat sink frame 1 corresponding to the matching grooves 14. The heat sink frame is made of copper material, which facilitates the transmission of heat generated by the work of the lithium battery blocks 4. The copper heat-conducting partitions 13 not only separate the left and right sides, but also facilitate the rapid conduction of heat inside the group of lithium battery blocks 4 to the heat dissipation fin groups 8, so as to cooperate with the fans 5 to rapidly cool down.

[0025] Further, a group of heating film rods 15 are arranged in three rows and four columns at the top end center of the heating seat 2, and the heating film rods 15 are matched and connected with the matching grooves 14, a placement hole 16 is arranged at the middle position of the heating film rod 15, a temperature sensor 7 is clamped in the placement hole 16, and a connecting hole three 17 is arranged at the bottom end of the four corners of the heating seat 2, the connecting hole three 17 is matched and connected with the connecting hole one 11 through the adaptive bolt, and the heating film rod 15 and the temperature sensor 7 uniformly act on the group of lithium battery blocks 4, so that the accuracy and real-time performance of the internal temperature can be ensured, when the temperature is too low, the heating film rod 15 surface generates heat through current, quickly raises the temperature of the battery, so that it reaches the appropriate working temperature range.

[0026] Further, the fastener 3 is in an overall arc structure, and a connecting hole four 18 is arranged at the bottom end of the four corners of the fastener 3, the connecting hole four 18 is matched and connected with the connecting hole two 12 through the adaptive screw, and a group of ventilation grooves 19 are arranged at the top end of the fastener 3 in a equidistant distribution, the fastener 3 effectively prevents the group of lithium battery blocks 4 from shaking, and the ventilation grooves 19 effectively improve the heat dissipation.

[0027] Structure description:

[0028] The heat dissipation frame 1 is the main body of the heat dissipation device, the outer side is symmetrically provided with a fan 5 and a protective grid 6, the inner and outer walls are provided with connecting structures, the inside is welded with copper heat-conducting partitions 13, and the whole copper is conducive to heat conduction;

[0029] The heating seat 2 is located at the bottom of the heat dissipation device, the top center has three rows and four columns of equidistantly distributed heating film rods 15, the bottom four corners are provided with connecting holes three 17, and the bottom of the heat dissipation frame 1 is connected;

[0030] The fastener 3 is in an overall arc structure, and a connecting hole four 18 is arranged at the bottom end of the four corners of the fastener 3, the connecting hole four 18 is matched and connected with the connecting hole two 12 through the adaptive screw, and a group of ventilation grooves 19 are arranged at the top end of the fastener 3 in a equidistant distribution, the fastener 3 effectively prevents the group of lithium battery blocks 4 from shaking, and the ventilation grooves 19 effectively improve the heat dissipation.

[0031] The lithium battery block 4 is a core energy storage component of the battery pack, and is clamped in the cavity formed by the heat dissipation frame 1, the heating seat 2 and the fastener 3;

[0032] The fan 5 is arranged in a shaft-symmetrical distribution on the outer side wall center of the heat dissipation frame 1, and is connected with the heat dissipation frame 1 through screws at the four corners, so as to accelerate air circulation and realize heat dissipation;

[0033] The protective grid 6 is arranged outside the fan 5, and is connected with the side wall of the heat dissipation frame 1 at the four corners through adaptive screws, so as to ensure the normal operation of the fan 5.

[0034] The temperature sensor 7 is installed in the middle placement hole 16 of the heating film rod 15, and can monitor the temperature around the lithium battery block 4 and feed back to the control system in real time.

[0035] The heat dissipation fin group 8: axisymmetrically distributed on the two opposite side walls of the heat dissipation frame 1, the single fin is arc-shaped, the whole is spiral, and the heat dissipation area is greatly increased;

[0036] The rectangular placement groove 9: the rectangular placement groove 9 is arranged at the center of the end face of the heat dissipation fin group 8, and the four corners are provided with fixing holes 10 for connecting the fan 5 and the protective grille 6;

[0037] The fixing hole 10: the fixing hole 10 is located at the four corners of the rectangular placement groove 9, and the fan 5 and the protective grille 6 are fixedly connected with the heat dissipation fin group 8 through the matching screw;

[0038] The connecting hole one 11: the connecting hole one 11 is arranged at the bottom end of the two opposite side walls of the heat dissipation frame 1, and is axisymmetric, and is used for cooperating with the bottom connecting hole three 17 of the heating seat 2;

[0039] The connecting hole two 12: the connecting hole two 12 is arranged at the top end of the heat dissipation frame 1, corresponds to the connecting hole one 11, and is used for connecting with the bottom connecting hole four 18 of the fastener 3;

[0040] The copper heat-conducting partition plate 13: a group of equidistantly welded in the heat dissipation frame 1, separates the lithium battery block 4, and helps heat conduction to the heat dissipation fin group 8;

[0041] The fitting groove 14: the fitting groove 14 is equidistantly distributed in the heat dissipation frame 1, and is matched and installed with the heating film rod 15 at the top of the heating seat 2;

[0042] The heating film rod 15: three rows and four columns of equidistantly distributed heating film rods 15 are arranged at the top of the heating seat 2, and the middle is provided with a mounting hole 16 for temperature sensor 7, which generates heat to rise temperature in low temperature;

[0043] The mounting hole 16: the mounting hole 16 is located at the middle position of the heating film rod 15, and is used for clamping the temperature sensor 7 to monitor the temperature of the battery pack;

[0044] The connecting hole three 17: the connecting hole three 17 is arranged at the bottom of the heating seat 2, and is connected with the bottom connecting hole one 11 of the heat dissipation frame 1 through the matching bolt;

[0045] The connecting hole four 18: the connecting hole four 18 is arranged at the bottom of the fastener 3, and is connected with the top connecting hole two 12 of the heat dissipation frame 1 through the matching screw;

[0046] The ventilation groove 19: the ventilation groove 19 is arranged at the top of the fastener 3, and is equidistantly distributed, which assists heat dissipation and enhances the stability of the battery pack.

[0047] Working principle: according to the diagram, the intelligent temperature control type storage battery lithium battery pack is correctly installed, the intelligent temperature control type storage battery lithium battery pack cooperates with the heat dissipation device composed of the heat dissipation frame 1, the fan 5 and the protective grid 6 and the heating seat 2 as the temperature control core component, the lithium battery block 4 is clamped equidistantly in the cavity composed of the heat dissipation frame 1, the heating seat 2 and the fastener 3, the heating film rod 15 at the top center of the heating seat 2 is distributed equidistantly in three rows and four columns, is installed corresponding to the matching groove 14, the built-in temperature sensor 7 monitors the temperature around the lithium battery block 4 in real time, and feeds back data to the control system, when the temperature is too high, the control system receives the signal of the temperature sensor 7, starts the heat dissipation device, two groups of fans 5 at the center of the two opposite side walls outside the heat dissipation frame 1 start to work, the protective grid 6 can effectively prevent the effect, the fan 5 rotates to accelerate the air circulation, the copper material of the heat dissipation frame 1 is beneficial to heat conduction, the copper heat conduction partition plate 13 distributed equidistantly inside quickly transmits the heat generated by the lithium battery block 4 to the heat dissipation fin group 8 distributed symmetrically outside, the single fin of the heat dissipation fin group 8 is arc-shaped, and the whole is spiral-shaped, which greatly increases the heat dissipation area, cooperates with the fan 5 to make the heat quickly dissipate, realizes efficient cooling, when the temperature is too low, the temperature sensor 7 senses and feeds back, the heating film rod 15 on the surface generates heat through current, quickly raises the temperature of the lithium battery block 4, so that it reaches the suitable working temperature range, the fastener 3 is in the arched structure, the bottom four corner connecting holes four 18 are fixed with the top connecting hole two 12 of the heat dissipation frame 1, and the ventilation slot 19 opened at the top prevents the lithium battery block 4 from shaking while assisting heat dissipation, and ensures that the lithium battery pack operates stably at the appropriate temperature.

[0048] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A smart temperature-controlled lithium battery pack, comprising a heating base (2), fasteners (3), and lithium battery blocks (4), and a heat dissipation device consisting of a heat dissipation frame (1), a fan (5), and a protective grille (6), characterized in that: The top end of the heat dissipation device is provided with a fastener (3), which is connected to the top end of the heat dissipation device by an adapter bolt. The bottom end of the heat dissipation device is provided with a heating seat (2), which is opposite to the fastener (3). The cavity formed by the heat dissipation device, the heating seat (2) and the fastener (3) is provided with multiple lithium battery blocks (4) that are equidistantly snapped together.

2. The intelligent temperature-controlled lithium battery pack according to claim 1, characterized in that: The main body of the heat dissipation device is a heat dissipation frame (1), and two sets of fans (5) and protective grilles (6) are provided in the center of the two opposite side walls on the outer side of the heat dissipation frame (1) in an axisymmetrical manner. The protective grilles (6) are located on the outer side of the fans (5), and the four corners of the fans (5) and the protective grilles (6) are connected to the side walls of the heat dissipation frame (1) by adapter screws.

3. The intelligent temperature-controlled lithium battery pack according to claim 2, characterized in that: The heat dissipation frame (1) has two opposite sidewalls on the outside with two heat dissipation fin groups (8) that are symmetrically distributed. Each fin of the heat dissipation fin group (8) has an arc-shaped structure. A rectangular placement groove (9) is opened at the center of the end face of the heat dissipation fin group (8). The rectangular placement groove (9) has a rectangular structure. Fixing holes (10) are provided at the four corners of the rectangular placement groove (9). The fixing holes (10) are connected to the four corners of the fan (5) and the protective grille (6) by means of adapter screws.

4. The intelligent temperature-controlled lithium battery pack according to claim 3, characterized in that: The heat dissipation frame (1) has two symmetrical connection holes (11) at the bottom of its two opposite side walls. The connection holes (11) are connected to the heating base (2). The top of the heat dissipation frame (1) has a connection hole (12) corresponding to the connection hole (11). The connection hole (12) is connected to the fastener (3). The top and bottom of the heat dissipation frame (1) are open. A set of copper heat-conducting partitions (13) are welded inside the heat dissipation frame (1). The adjacent copper heat-conducting partitions (13) are connected to the lithium battery block (4). The fitting groove (14) is a set of fitting grooves (14) that are equidistantly distributed inside the heat dissipation frame (1).

5. The intelligent temperature-controlled lithium battery pack according to claim 4, characterized in that: The heating base (2) has a set of heating film rods (15) arranged in three rows and four columns at equal intervals at the center of the top end. The heating film rods (15) are connected to the fitting grooves (14). The heating film rods (15) have a mounting hole (16) in the middle position. A temperature sensor (7) is snapped into the mounting hole (16). The heating base (2) has a connection hole three (17) at each of the four corners at the bottom end. The connection hole three (17) is connected to the connection hole one (11) by an adapter bolt.

6. The intelligent temperature-controlled lithium battery pack according to claim 4, characterized in that: The fastener (3) has an overall arched structure, and the four corners of the bottom end of the fastener (3) are provided with connection holes four (18). The connection holes four (18) are connected to the connection holes two (12) by means of adapter screws. The top end of the fastener (3) is provided with a set of ventilation slots (19) that are evenly distributed.

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