Temperature control type lithium battery pack

Abstract

The invention provides a temperature control type lithium battery pack, and relates to the technical field of lithium battery packs, the temperature control type lithium battery pack comprises a shell for placing the battery pack, a position adjusting assembly arranged in the shell, a temperature adjusting assembly mounted on the position adjusting assembly, and a fixed position temperature adjusting assembly mounted at the bottom of the shell; the position adjusting assembly comprises a left-right moving mechanism, a front-back moving mechanism and an up-down moving mechanism. Front-back limiting rails extending in the front-back direction are fixed to the left inner wall and the right inner wall of the shell, and the front-back moving mechanism slides between the two front-back limiting rails in a guiding mode. When the device is used, the position of the mounting block can be adjusted through the left-right moving mechanism, the front-back moving mechanism and the up-down moving mechanism, and then the position of the temperature adjusting assembly is adjusted, so that the temperature adjusting assembly can dissipate heat or heat the outer side of the battery pack, the temperature of the battery pack is kept stable, and the using effect of the battery pack is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium battery packs, in particular to a temperature-controlled lithium battery pack. Background Art

[0002] Currently, lithium batteries are a type of battery that uses lithium metal or lithium alloys as positive / negative electrode materials and a non-aqueous electrolyte solution. Lithium batteries have the characteristics of high specific energy, long service life, low pollution, and high operating voltage. Of all environmental factors, temperature has the greatest impact on lithium batteries. Excessive temperatures, exceeding 45°C, can disrupt the chemical balance within the battery, leading to side reactions. Using a lithium battery in a low-temperature environment for a short period of time, or if the temperature is not low enough, will only temporarily affect the battery capacity but will not cause permanent damage. However, if used in a low-temperature environment for a long time, or in an ultra-low temperature environment of -40°C, lithium-ion batteries may be "frozen" and permanently damaged. In addition, charging a lithium-ion battery in low-temperature conditions can also cause permanent damage to the battery.

[0003] A Chinese patent discloses "a large-capacity battery pack with a temperature control device" with publication number CN114583353A. This invention relates to the field of battery technology and specifically discloses a large-capacity battery pack with a temperature control device, including a temperature control device and at least two batteries. The temperature control device includes a temperature control unit, an input pipe, an output pipe and a heat transfer pipe. The input pipe and the output pipe are connected to the temperature control unit. The heat transfer pipe is arranged between the pole connection surfaces of two adjacent single batteries. The heat transfer pipe contains a heat transfer medium to exchange heat with the pole. The present invention's large-capacity battery pack with a temperature control device has a simple structure, excellent thermal conductivity, and extended battery life. A Chinese patent application titled "A Temperature Control System and Method for a New Energy Vehicle Battery Pack," published as CN108987846A, states that the system includes a controller, a power supply, a heating element, a temperature measurement component, and a control component electrically connected to the controller. The temperature measurement component is used to measure the external ambient temperature of the battery compartment and the current temperature of the power battery. The control component is used to control the connection between the battery compartment and the cab or the outside world. The heating element is used to heat the interior of the battery compartment. The controller controls the connection between the battery compartment and the cab or the outside world based on the external ambient temperature and the current temperature of the power battery. The power supply is used to power the temperature control system. This system effectively controls the temperature of the power battery, maintaining it at its optimal operating temperature and ensuring efficient power supply. It also features a simple structure, low manufacturing cost, and ease of assembly. Furthermore, it effectively reduces vehicle weight, thereby achieving energy conservation and emission reduction.

[0004] Although the above patent can solve the problem of heat dissipation for the battery pack, it still has the following disadvantages: whether the battery pack is in use or not, heat will be generated or heating is required to maintain the efficiency of the battery. At the current stage, the heat dissipation device and the heating device are fixedly mounted on the battery pack shell. When the battery pack in the battery pack shell is subjected to heat dissipation or heating operations, the following problem will arise: those battery parts that are closer to the heat dissipation device and the heating device can obtain better heat dissipation or heating effects; however, those battery parts that are farther away from the heat dissipation device and the heating device will obtain poorer heat dissipation or heating effects. This uneven heat dissipation or heating situation will eventually affect the overall usability of the battery pack. Summary of the Invention

[0005] The purpose of the present invention is to provide a temperature-controlled lithium battery pack, which aims to solve the problem in the prior art that, because the heat dissipation device and the heating device are fixedly installed on the battery pack shell, the battery parts closer to the heat dissipation device and the heating device can obtain better heat dissipation or heating effects, which affects the overall usability of the battery pack.

[0006] To achieve the above-mentioned object, the present invention adopts the following technical solution: a temperature-controlled lithium battery pack includes a housing for placing the battery pack, a position adjustment component provided in the housing, a temperature adjustment component installed on the position adjustment component, and a fixed position temperature adjustment component installed at the bottom of the housing;

[0007] The position adjustment assembly includes a left-right moving mechanism, a front-back moving mechanism, and an up-down moving mechanism;

[0008] Front and rear limit rails extending in the front and rear directions are fixed on the left and right inner walls of the shell, and the front and rear moving mechanism is guided and slid between the two front and rear limit rails;

[0009] The front-to-back moving mechanism is provided with left and right limit rails extending in the left-right direction and capable of moving forward and backward synchronously with the front-to-back moving mechanism, the left-to-right moving mechanism is installed on the left and right limit rails, and the left-to-right moving mechanism is provided with a moving block capable of moving left and right along the left and right limit rails;

[0010] The up-and-down moving mechanism is mounted on the moving block so that it can move synchronously with the moving block. A mounting block is fixed to the bottom of the up-and-down moving mechanism. The temperature adjustment assembly is mounted on the mounting block so that the temperature adjustment assembly and the position adjustment assembly cooperate with each other to perform all-round temperature adjustment on the battery pack.

[0011] A temperature sensor is provided in the shell, and the temperature sensor is controlled and connected with the left-right moving mechanism, the front-back moving mechanism, the up-down moving mechanism, the temperature regulating component and the fixed position temperature regulating component through a control element.

[0012] Preferably, the front-rear moving mechanism includes a front-rear driving device fixed to the inner wall of the housing, a front-rear lead screw fixedly connected to the output shaft of the front-rear driving device and extending in the front-rear direction, and a front-rear threaded block threadedly adapted on the front-rear lead screw;

[0013] The front and rear threaded blocks are fixedly connected to the left and right limiting rails, so that the left and right limiting rails can move forward and backward along the extending direction of the front and rear limiting rails.

[0014] Preferably, front and rear sliders are fixed to the left and right sides of the left and right limit rails, and the front and rear sliders are guided to slide in the front and rear limit rails;

[0015] The left-right moving mechanism is installed between the two front and rear sliders, so that when the left-right limiting rails and the front and rear sliders move along the extension direction of the front and rear limiting rails, the left-right moving mechanism can be driven to move synchronously.

[0016] Preferably, the left-right moving mechanism includes a left-right driving device fixed on one of the front and rear sliders, a left-right lead screw fixedly connected to the output end of the left-right driving device and extending in the left-right direction, and a left-right threaded block adapted to the threads of the left and right lead screws;

[0017] The moving block is fixedly connected to the left and right threaded blocks, so that the moving block and the left and right threaded blocks can move along the extending direction of the left and right limiting rails.

[0018] Preferably, left and right sliding blocks are fixed on the left and right threaded blocks, and the left and right sliding blocks are guided to slide in left and right limiting rails.

[0019] Preferably, the up-and-down moving mechanism includes a telescopic device fixed on the moving block and extending in the up-and-down direction, and an up-and-down driving device fixed at the bottom of the movable section of the telescopic device;

[0020] The output end of the upper and lower driving device is fixedly connected to the mounting block so that the mounting block can rotate around the axis of the upper and lower driving device.

[0021] Preferably, the cross-section of the mounting block is a triangular columnar structure, a cavity is provided in the triangular columnar structure, and the temperature adjustment component is provided in the cavity;

[0022] The temperature adjustment assembly includes a first fan assembly installed on the mounting block, a circulation pipe assembly installed on the mounting block, and a first heating assembly installed on the mounting block.

[0023] Preferably, three surfaces of the triangular columnar structure are respectively provided with transparent through holes, and the through holes are connected to the cavity;

[0024] The first fan assembly, the circulation pipe assembly and the first heating assembly are all installed on different through holes of the triangular columnar structure.

[0025] Preferably, the fixed position temperature adjustment assembly includes a support frame fixed to the bottom of the shell, a second fan assembly installed on the support frame, and a second heating assembly installed on the support frame.

[0026] Preferably, a revolving door is hingedly connected to the shell so that the battery pack can be placed in the shell.

[0027] The beneficial effects are: 1. When the battery pack is placed in the shell, the battery pack may be overheated or underheated due to long-term use or long-term non-use. At present, the battery pack is heated and dissipated by a heat dissipation or heating device, but the heat dissipation or heating device is fixed on the shell, and the effect is poor when in use. When the device is in use, the position of the mounting block can be adjusted by the left and right moving mechanism, the front and back moving mechanism, and the up and down moving mechanism, and then the position of the temperature adjustment component can be adjusted, so that the temperature adjustment component can dissipate heat or heat the outside of the battery pack to keep the battery pack at a stable temperature, thereby improving the use effect of the battery pack.

[0028] 2. The battery pack is placed on a fixed-position temperature adjustment component in the shell. When the temperature adjustment component moves under the action of the left-right moving mechanism, the front-back moving mechanism and the up-and-down moving mechanism, the outside of the battery pack is cooled or heated. At this time, the fixed-position temperature adjustment component is started to cool or heat the bottom of the battery pack. In conjunction with the temperature adjustment component, all-round heat dissipation or heating of the battery pack is achieved, thereby improving the heat dissipation or heating effect of the battery pack. It avoids the situation where the battery part close to the heat dissipation or heating device obtains better heat dissipation or heating effect, while the battery part far away from the heat dissipation or heating device has poor heat dissipation or heating effect, thereby improving the overall usability of the battery pack.

[0029] 3. When in use, the mounting block can be rotated left and right below the upper and lower drive devices to rotate the first fan assembly, the circulation pipe assembly and the first heating assembly for use as needed. When the temperature sensor detects that the battery pack temperature is V0-V1, the first heating assembly can be rotated to the side close to the battery pack to improve the heating effect. When the temperature sensor detects that the battery pack temperature is V2-V3, the first fan assembly will be rotated to the side close to the battery pack to dissipate heat for the battery pack. If the temperature sensor detects that the battery pack temperature is V3-V4, the circulation pipe assembly will be rotated to the side close to the battery pack to enhance the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic structural diagram of the battery pack of the present invention placed in a housing;

[0031] Figure 2 It is a schematic structural diagram of a partial cross-section of the housing of the present invention;

[0032] Figure 3 In the present invention Figure 2 A schematic diagram of the enlarged structure at point A;

[0033] Figure 4 It is a structural diagram of the position adjustment assembly transmission of the present invention;

[0034] Figure 5 In the present invention Figure 4 A schematic diagram of the enlarged structure at point B;

[0035] Figure 6 It is a structural schematic diagram of the connection between the up and down moving mechanism and the mounting block of the present invention;

[0036] Figure 7 It is a schematic structural diagram of a partial cross-section of the mounting block of the present invention;

[0037] Figure 8 This is a schematic diagram of the structure of the battery pack of the present invention placed on a fixed position temperature adjustment component;

[0038] Figure 9 It is a structural schematic diagram of the distribution of the second fan assembly and the second heating assembly on the support frame of the present invention.

[0039] In the figure: 1. Battery pack; 2. Shell; 3. Temperature adjustment assembly; 301. First fan assembly; 302. Circulation pipe assembly; 303. First heating assembly; 401. Left and right driving devices; 402. Left and right lead screws; 403. Left and right threaded blocks; 5. Forward and backward moving mechanism; 501. Forward and backward driving devices; 502. Front and rear lead screws; 503. Front and rear threaded blocks; 6. Up and down moving mechanism; 601. Telescopic device; 602. Up and down driving devices; 7. Front and rear limit rails; 8. Left and right limit rails; 9. Moving block; 10. Mounting block; 11. Temperature sensor; 12. Fixed position temperature adjustment assembly; 1201. Support frame; 1202. Second fan assembly; 1203. Second heating assembly; 13. Left and right sliders; 14. Revolving door; 15. Front and rear sliders. DETAILED DESCRIPTION

[0040] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0041] like Figures 1-9 As shown, a temperature-controlled lithium battery pack is mainly used when the battery pack 1 has not been used for a long time or has been used for a long time. The temperature of the battery pack 1 may be too high or too low, resulting in poor battery pack 1 efficiency. Although heat dissipation devices or heating devices are currently used to adjust the temperature of the battery pack 1, the heat dissipation devices or heating devices cannot be adjusted, resulting in poor temperature control effect on the battery pack 1, affecting the overall usability of the battery pack 1.

[0042] In this embodiment, the temperature-controlled lithium battery pack includes a shell 2 for placing the battery pack 1, a position adjustment component provided in the shell 2, a temperature adjustment component 3 installed on the position adjustment component and a fixed position temperature adjustment component 12 installed at the bottom of the shell 2. Through the setting of the shell 2, a space can be formed for placing the battery pack 1, which can not only protect the battery pack 1, but also regulate the temperature of the outside of the battery pack 1 through the temperature adjustment component 3 in the shell 2. A temperature sensor 11 is provided in the shell 2. The temperature sensor 11 is controlled and connected with the position adjustment component, the temperature adjustment component 3 and the fixed position temperature adjustment component 12 through a control element. In this embodiment, the structure and principle of the control connection between the temperature sensor 11 and the position adjustment component, the temperature adjustment component 3 and the fixed position temperature adjustment component 12 through the control element are existing technologies and will not be described in detail here.

[0043] In this embodiment, the housing 2 is provided with transparent air holes for heat dissipation.

[0044] When the temperature sensor 11 detects a temperature change of the battery pack 1, the position adjustment component can be used to drive the temperature adjustment component 3 to move so that the outside of the battery pack 1 can be cooled or heated, so as to avoid the situation where the part close to the heat dissipation or heating device has a better heat dissipation or heating effect, while the part of the battery pack 1 far away from the heat dissipation or heating device has a poor heat dissipation or heating effect, thereby improving the overall usability of the battery pack 1. The fixed position temperature adjustment component 12 can cool or heat the bottom of the battery pack 1.

[0045] In this embodiment, the fixed position temperature adjustment component 12 is used in conjunction with the temperature adjustment component 3 to achieve all-round heat dissipation or heating of the battery pack 1, thereby improving the heat dissipation or heating effect of the battery pack 1.

[0046] like Figures 1-6 and Figure 8 As shown, the position adjustment assembly includes a left-right moving mechanism, a front-back moving mechanism 5 and an up-down moving mechanism 6. In this embodiment, the left-right moving mechanism can adjust the position of the mounting block 10 in the left-right direction, the front-back moving mechanism 5 can adjust the position of the mounting block 10 in the front-back direction, and the up-down moving mechanism 6 can adjust the position of the mounting block 10 in the up-down direction. The mounting block 10 is fixed to the bottom of the up-down moving mechanism 6, and the temperature adjustment assembly 3 is installed on the mounting block 10. When the position of the mounting block 10 changes, the temperature adjustment assembly 3 can move with the mounting block 10, thereby performing all-round temperature adjustment on the battery pack 1.

[0047] Specifically, front and rear limit rails 7 extending along the front and rear direction are fixed on the left and right inner walls of the shell 2, and the front and rear moving mechanism 5 is guided to slide between the two front and rear limit rails 7; the front and rear moving mechanism 5 is provided with left and right limit rails 8 extending along the left and right directions and capable of moving forward and backward synchronously with the front and rear moving mechanism 5, and the left and right moving mechanism is installed on the left and right limit rails 8. The left and right moving mechanism is provided with a moving block 9 capable of moving left and right along the left and right limit rails 8; the up and down moving mechanism 6 is installed on the moving block 9, so that the up and down moving mechanism 6 can move synchronously with the moving block 9.

[0048] The front-rear moving mechanism 5 includes a front-rear driving device 501 fixed on the inner wall of the shell 2, a front-rear lead screw 502 fixedly connected to the output shaft of the front-rear driving device 501 and extending in the front-rear direction, and a front-rear threaded block 503 threadedly adapted on the front-rear lead screw 502. After the front-rear driving device 501 is started, it can drive the front-rear lead screw 502 to rotate. Since the front-rear threaded block 503 is threadedly adapted to the front-rear lead screw 502, when the front-rear lead screw 502 rotates, it can drive the front-rear threaded block 503 to move forward and backward. Since the front-rear threaded block 503 is fixedly connected to the left and right limit rails 8, the left and right limit rails 8 move forward and backward along the extension direction of the front-rear limit rail 7.

[0049] Front and rear sliders 15 are fixed on the left and right sides of the left and right limit rails 8. The front and rear sliders 15 are guided and slided in the front and rear limit rails 7. When the left and right limit rails 8 move, they can drive the front and rear sliders 15 at both ends to move forward and backward along the front and rear limit rails 7. The left and right moving mechanism is installed between the two front and rear sliders 15 so that when the left and right limit rails 8 and the front and rear sliders 15 move along the extension direction of the front and rear limit rails 7, they can drive the left and right moving mechanism to move synchronously.

[0050] In this embodiment, by disposing the front and rear sliding blocks 15 and the left and right limiting rails 8, the front and rear threaded blocks 503 can be prevented from rotating the left and right limiting rails 8 when they rotate.

[0051] The left and right moving mechanism includes a left and right driving device 401 fixed on one of the front and rear sliders 15, a left and right lead screw 402 fixedly connected to the output end of the left and right driving device 401 and extending in the left and right directions, and a left and right threaded block 403 threadedly adapted to the left and right lead screw 402. After the left and right driving device 401 is started, the left and right driving device 401 can drive the left and right lead screw 402 to rotate. Since the left and right lead screw 402 is threadedly connected to the left and right threaded blocks 403, the left and right threaded blocks 403 can be moved in the left and right directions. Since the moving block 9 is fixedly connected to the left and right threaded blocks 403, the moving block 9 and the left and right threaded blocks 403 can be moved along the extension direction of the left and right limit rails 8.

[0052] The left and right sliders 13 are fixed on the left and right threaded blocks 403 , and the left and right sliders 13 are guided to slide in the left and right limit rails 8 . When the moving block 9 moves, it can drive the left and right sliders 13 to move along the left and right limit rails 8 to guide the moving block 9 .

[0053] In this embodiment, the arrangement of the left and right sliders 13 can prevent the moving block 9 from rotating during the movement process.

[0054] The up and down moving mechanism 6 includes a telescopic device 601 fixed on the moving block 9 and extending in the up and down directions, and an up and down driving device 602 fixed at the bottom of the movable section of the telescopic device 601. In this embodiment, the telescopic device 601 adopts an electric telescopic rod or a hydraulic telescopic rod. The structure and principle of the electric telescopic rod or the hydraulic telescopic rod are existing technologies and will not be described in detail here. The output end of the up and down driving device 602 is fixedly connected to the mounting block 10 so that the mounting block 10 can rotate around the axis of the up and down driving device 602. Through the setting of the telescopic device 601, the position of the mounting block 10 in the up and down directions can be adjusted so that the temperature of battery packs 1 at different heights can be adjusted, and the up and down driving device 602 can drive the mounting block 10 to rotate, so as to realize the temperature adjustment component 3 on the mounting block 10 to be turned to the side close to the battery pack 1 according to different situations, thereby improving the temperature adjustment effect.

[0055] like Figure 6 and Figure 7 As shown, the cross-sectional shape of the mounting block 10 is a triangular columnar structure, a cavity is provided in the triangular columnar structure, the temperature regulating component 3 is provided in the cavity, and transparent through holes are respectively provided on the three faces of the triangular columnar structure, which are connected with the cavity so that the temperature regulating component 3 can be adjusted according to needs to adjust the temperature of the battery pack 1.

[0056] Specifically, the temperature regulating assembly 3 includes a first fan assembly 301 installed on the mounting block 10, a circulation pipe assembly 302 installed on the mounting block 10, and a first heating assembly 303 installed on the mounting block 10. In this embodiment, the structure and principle of the first heating assembly 303, the first fan assembly 301 and the circulation pipe assembly 302 are existing technologies and will not be described in detail here. The first fan assembly 301, the circulation pipe assembly 302 and the first heating assembly 303 are all installed on different through holes of the triangular columnar structure. When the first heating assembly 303, the first fan assembly 301 and the circulation pipe assembly 302 rotate left and right and down on the upper and lower driving devices 602, the rotation angle will not be too large, and the upper and lower driving devices 602 are forward and reverse rotation to achieve angle adjustment, not unidirectional rotation, to avoid the problem of entanglement of the circuits of the first heating assembly 303, the first fan assembly 301 and the circulation pipe assembly 302.

[0057] When the temperature sensor 11 detects that the temperature of the battery pack 1 is V0-V1, the first heating component 303 can be rotated to the side close to the battery pack 1 to improve the heating effect. When the temperature sensor 11 detects that the temperature of the battery pack 1 is V2-V3, the first fan component 301 will be rotated to the side close to the battery pack 1 to dissipate heat for the battery pack 1. If the temperature sensor 11 detects that the temperature of the battery pack 1 is V3-V4, the circulation pipe component 302 will be rotated to the side close to the battery pack 1 to enhance the heat dissipation effect. In this embodiment, V0 is -10°C, V1 is 0°C, V2 is 40°C, and V3 is 50℃, V4 is 60℃. When the temperature sensor 11 detects that the temperature of the battery pack 1 is in the V0-V1 (-10℃-0℃) period, the performance of the battery pack 1 will be significantly reduced, including reduced discharge capacity and charging efficiency. The battery pack 1 needs to be heated by the first heating component 303. When the temperature sensor 11 detects that the temperature of the battery pack 1 is in the V2-V3 (40℃-50℃), the first fan component 301 will be used for primary heat dissipation. If the temperature detected by the temperature sensor 11 is in the V3-V4 (50℃-60℃), the circulation pipe component 302 will be started to enhance the heat dissipation effect.

[0058] When the temperature of the battery pack 1 is within V1-V2 (0°C-40°C), it is the optimal operating temperature range of the battery pack 1.

[0059] like Figure 8 and Figure 9 As shown, the battery pack 1 is mounted on the support frame 1201 , which can not only improve the stability of the connection of the battery pack 1 , but also cooperate with the temperature adjustment component 3 to achieve comprehensive temperature adjustment of the battery pack 1 .

[0060] Specifically, the fixed position temperature adjustment component 12 includes a support frame 1201 fixed to the bottom of the shell 2, a second fan component 1202 installed on the support frame 1201, and a second heating component 1203 installed on the support frame 1201. In this embodiment, the structure and principle of the second fan component 1202 and the second heating component 1203 are existing technologies and will not be described in detail here. A mounting seat adapted to the battery pack 1 is provided on the support frame 1201 to facilitate the installation of the battery pack 1.

[0061] In this embodiment, when the temperature sensor 11 detects that the temperature of the battery pack 1 is at V0-V1 (-10℃-0℃), the second heating component 1203 is driven to start to heat the bottom of the battery pack 1. When the temperature sensor 11 detects that the temperature of the battery pack 1 is at V2-V4 (40℃-60℃), the second fan component 1202 is driven to dissipate heat from the bottom of the battery pack 1.

[0062] like Figure 1 and Figure 2 As shown, a rotating door 14 is hingedly connected to the housing 2 so that the battery pack 1 can be placed in the housing 2 .

[0063] Working principle: Place the battery pack 1 on the support frame 1201 inside the shell 2, and then the battery pack 1 can be used. If the temperature sensor 11 detects that the temperature of the battery pack 1 is at V2-V4 (40℃-60℃), the front and rear drive devices 501 will be started. After the front and rear drive devices 501 are started, they can drive the front and rear screws 502 to rotate. When the front and rear screws 502 rotate, they can drive the front and rear threaded blocks 503, the left and right limit rails 8 and the front and rear sliders 15 to move forward and backward along the front and rear limit rails 7 to adjust the position of the mounting block 10 in the front and rear direction. Then the left and right drive devices 401 are started, so that the left and right drive devices 401 drive the left and right screws 402 to rotate. The lever 402 is threadedly connected to the left and right threaded blocks 403 and the movable block 9 is fixedly connected to the left and right threaded blocks 403, so that the movable block 9 and the left and right threaded blocks 403 can be moved along the extension direction of the left and right limit rails 8 to adjust the position of the mounting block 10 in the left and right directions. Finally, the telescopic device 601 is started to adjust the position of the mounting block 10 in the up and down directions, so that the temperature adjustment component 3 on the mounting block 10 can be moved to any position outside the battery pack 1, so as to fully dissipate heat or heat the outside of the battery pack 1. At the same time, the second fan component 1202 and the second heating component 1203 can also dissipate heat or heat the bottom of the battery pack 1, thereby realizing all-round temperature control of the battery pack 1.

[0064] The embodiments of the present invention described above do not constitute limitations on the scope of protection of the present invention. The basic concept of the present invention is to achieve heat dissipation or heating of the battery pack 1 within the housing 2 by fixing the heat dissipation or heating device to the housing 2. However, this design results in better heat dissipation or heating of the battery pack 1 near the heat dissipation or heating device, while worse heat dissipation or heating of the battery pack 1 far away from the device occurs. This results in poor overall heat dissipation or heating of the battery pack 1, affecting the overall usability of the battery pack 1. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention are intended to be included within the scope of protection of the claims.

Claims

1. A temperature-controlled lithium battery pack, characterized in that: It comprises a housing (2) for accommodating a battery pack (1), a position adjustment component disposed within the housing (2), a temperature adjustment component (3) mounted on the position adjustment component, and a fixed position temperature adjustment component (12) mounted on the bottom of the housing (2); The position adjustment assembly includes a left-right moving mechanism, a front-back moving mechanism (5), and an up-down moving mechanism (6); Front and rear limit rails (7) extending in the front and rear directions are fixed on the left and right inner walls of the housing (2), and the front and rear moving mechanism (5) is guided and slid between the two front and rear limit rails (7); The front-back moving mechanism (5) is provided with left and right limit rails (8) extending in the left-right direction and capable of synchronously moving forward and backward with the front-back moving mechanism (5); the left-right moving mechanism is mounted on the left and right limit rails (8); and the left-right moving mechanism is provided with a moving block (9) capable of moving left and right along the left and right limit rails (8); The up-down moving mechanism (6) is mounted on a moving block (9) so that the up-down moving mechanism (6) can move synchronously with the moving block (9); a mounting block (10) is fixed to the bottom of the up-down moving mechanism (6); and the temperature adjustment component (3) is mounted on the mounting block (10) so that the temperature adjustment component (3) and the position adjustment component cooperate with each other to perform omnidirectional temperature adjustment on the battery pack (1); A temperature sensor (11) is provided in the housing (2), and the temperature sensor (11) is controllably connected to the left-right moving mechanism, the front-back moving mechanism (5), the up-down moving mechanism (6), the temperature regulating assembly (3), and the fixed position temperature regulating assembly (12) through a control element.

2. A temperature-controlled lithium battery pack according to claim 1, characterized in that: The front-back moving mechanism (5) comprises a front-back driving device (501) fixed on the inner wall of the housing (2), a front-back lead screw (502) fixedly connected to the output shaft of the front-back driving device (501) and extending in the front-back direction, and a front-back threaded block (503) threadedly adapted on the front-back lead screw (502); The front and rear threaded blocks (503) are fixedly connected to the left and right limiting rails (8), so that the left and right limiting rails (8) can move forward and backward along the extension direction of the front and rear limiting rails (7).

3. A temperature-controlled lithium battery pack according to claim 2, characterized in that: Front and rear sliders (15) are fixed to the left and right sides of the left and right limit rails (8), and the front and rear sliders (15) are guided and slid in the front and rear limit rails (7); The left-right moving mechanism is installed between the two front and rear sliders (15), so that when the left and right limit rails (8) and the front and rear sliders (15) move along the extension direction of the front and rear limit rails (7), the left and right moving mechanism can be driven to move synchronously.

4. A temperature-controlled lithium battery pack according to claim 3, characterized in that: The left-right moving mechanism comprises a left-right driving device (401) fixed on one of the front and rear sliders (15), left-right lead screws (402) fixedly connected to the output ends of the left-right driving device (401) and extending in the left-right direction, and left-right threaded blocks (403) threadably adapted to the left-right lead screws (402); The moving block (9) is fixedly connected to the left and right threaded blocks (403), so that the moving block (9) and the left and right threaded blocks (403) can move along the extension direction of the left and right limiting rails (8).

5. The temperature-controlled lithium battery pack according to claim 4, wherein: Left and right sliding blocks (13) are fixed on the left and right threaded blocks (403), and the left and right sliding blocks (13) are guided to slide in the left and right limiting rails (8).

6. The temperature-controlled lithium battery pack according to claim 1, wherein: The up-and-down moving mechanism (6) comprises a telescopic device (601) fixed on the moving block (9) and extending in the up-and-down direction, and a vertical driving device (602) fixed at the bottom of the movable section of the telescopic device (601); The output end of the upper and lower driving device (602) is fixedly connected to the mounting block (10) so that the mounting block (10) can rotate around the axis of the upper and lower driving device (602).

7. The temperature-controlled lithium battery pack according to claim 6, wherein: The cross-sectional shape of the mounting block (10) is a triangular columnar structure, a cavity is provided in the triangular columnar structure, and the temperature regulating assembly (3) is provided in the cavity; The temperature regulating assembly (3) comprises a first fan assembly (301) mounted on the mounting block (10), a circulation pipe assembly (302) mounted on the mounting block (10), and a first heating assembly (303) mounted on the mounting block (10).

8. The temperature-controlled lithium battery pack according to claim 7, wherein: The three surfaces of the triangular columnar structure are respectively provided with transparent through holes, and the through holes are connected to the cavity; The first fan assembly (301), the circulation pipe assembly (302) and the first heating assembly (303) are all installed on different through holes of the triangular columnar structure.

9. The temperature-controlled lithium battery pack according to claim 1, wherein: The fixed position temperature adjustment component (12) comprises a support frame (1201) fixed to the bottom of the housing (2), a second fan component (1202) installed on the support frame (1201), and a second heating component (1203) installed on the support frame (1201).

10. A temperature-controlled lithium battery pack according to any one of claims 1 to 9, characterized in that: A rotating door (14) is hingedly connected to the housing (2) so that the battery pack (1) can be placed inside the housing (2).

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