A new energy mine car heat dissipation device

Abstract

The present invention discloses a new energy mining car heat dissipation device, which relates to the field of heat dissipation and cooling technology. The device comprises: a fixed frame connected to the mining car; a mounting box mounted on the fixed frame and housing a power battery pack; a conductive panel slidably mounted on the lower portion of the fixed frame and abutting the bottom of the mounting box; a heat dissipation device mounted on the bottom of the conductive panel; a cooling fan mounted on the bottom of the cooling device; and a control device connecting the cooling fan and the conductive panel. The present invention can provide buffering protection for the power battery pack and autonomously adjust the heat dissipation rate to maintain the power battery temperature at an optimal operating state, effectively improving the performance and lifespan of the power battery.

Description

Technical Field

[0001] The present invention relates to the field of heat dissipation and cooling technology, and more particularly to a new energy mining car heat dissipation device. Background Art

[0002] With the increasing global demand for low-carbon environmental protection and sustainable development, new energy mining cars have gradually become the main equipment in the field of mining. However, its power battery, drive motor and power electronic devices will generate a lot of heat during operation. If the heat is not dissipated in time, it will lead to problems such as equipment performance degradation, increased safety hazards, and shortened life. When the power battery is installed, it lacks a certain anti-vibration buffer function. Under the long-term bumping of the car, it is easy to cause the battery pack structure to change. Moreover, due to the relatively closed installation environment, it is impossible to effectively discharge the heat emitted by itself, resulting in long-term operation in a high-temperature environment. This not only affects the performance of use, but also reduces the use cycle. The optimal operating temperature of the power battery is usually between 10°C and 30°C. Too high or too low temperatures will accelerate battery aging and even cause thermal runaway. An effective heat dissipation system is crucial. Therefore, it is necessary to provide a new energy mining car heat dissipation device to solve the problems raised in the above background technology. Summary of the Invention

[0003] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a new energy mining car heat dissipation device, comprising:

[0004] Fixed frame, connected to the mine car;

[0005] The installation box is arranged on the fixed frame and has a power battery pack inside;

[0006] The conductive panel is slidably arranged at the lower part of the fixed frame and fits with the bottom of the installation box;

[0007] a heat dissipation device, arranged at the bottom of the conductive panel;

[0008] A cooling fan is fixed to the bottom of the heat dissipation device;

[0009] Control device, connecting the cooling fan and the conduction panel.

[0010] Furthermore, preferably, the fixed frame includes:

[0011] The limiting frame fits in with the outer side of the installation box;

[0012] Connecting piece, connecting the limit frame and the vehicle body;

[0013] The buffer components are provided with four in a circular distribution, fixed at the four corners of the limit frame, and connected to the conduction panel.

[0014] Furthermore, preferably, the buffer assembly includes:

[0015] A connecting column is fixed to the bottom of the limit frame and is slidably connected to the conductive panel;

[0016] The buffer spring is arranged on the connecting column and is located below the conductive panel.

[0017] Furthermore, preferably, a plurality of slots corresponding to the heat dissipation devices are provided at the bottom of the conductive panel.

[0018] Furthermore, preferably, the heat dissipation device includes:

[0019] The heat dissipation components are dispersed outward from the center of the conductive panel and correspond to the slots at the bottom of the conductive panel;

[0020] The cooling assembly is connected to the heat dissipation assembly, and the cooling assembly is connected to an input pipe and an output pipe.

[0021] Furthermore, preferably, the heat dissipation component includes:

[0022] An inner heat sink assembly is fixedly connected to the bottom slot of the conductive panel;

[0023] The outer heat sink assembly has the same structure as the inner heat sink assembly and is arranged on the outer side of the inner heat sink assembly, corresponding to the bottom slot of the conductive panel.

[0024] Furthermore, preferably, the inner heat sink assembly includes:

[0025] There are multiple heat sinks distributed in an annular pattern, and there is partial overlap between two adjacent heat sinks;

[0026] The connecting annular surface is fixed on the bottom of the heat sink, and the connecting annular surface corresponding to the outer heat sink assembly is fixedly connected to the top of the heat dissipation fan.

[0027] Furthermore, preferably, the cooling assembly includes:

[0028] An inner cooling tube group is fixedly connected to the heat sink of the inner heat sink assembly;

[0029] An external cooling tube group is fixedly connected to the heat sink of the external heat sink assembly, and the external cooling tube group and the internal cooling tube group have the same structure;

[0030] There are multiple telescopic connecting pipes distributed in an annular manner, which are arranged between the inner heat sink assembly and the outer heat sink assembly to connect the inner cooling tube group and the outer cooling tube group, and the telescopic connecting pipes are connected to the input pipe.

[0031] Furthermore, preferably, the inner cooling tube group includes:

[0032] An inner cooling ring pipe is arranged on the inner side of the inner heat sink assembly;

[0033] An outer cooling ring pipe is arranged on the outer side of the inner heat sink assembly;

[0034] There are multiple exchange connecting pipes distributed in an annular manner, which pass through the overlapping area of ​​two adjacent heat sinks to connect the inner cooling ring pipe and the outer cooling ring pipe. The outer cooling ring pipe of the inner cooling tube group is fixedly connected to the inner cooling ring pipe of the outer cooling tube group through a telescopic connecting pipe. The inner cooling ring pipe of the inner cooling tube group and the outer cooling ring pipe of the outer cooling tube group are connected to output pipes.

[0035] Furthermore, preferably, the control device includes:

[0036] A telescopic shaft connects the cooling fan and the bottom of the conductive panel, and the telescopic shaft is divided into a fixed shaft and an extension shaft, which are electrically connected in a sliding manner, the fixed shaft is fixedly connected to the cooling fan, and the extension shaft is fixedly connected to the bottom of the conductive panel;

[0037] The return spring is sleeved on the telescopic shaft and is located between the heat dissipation fan and the conduction panel.

[0038] Compared with the prior art, the present invention has the following beneficial effects:

[0039] In the present invention, the power battery pack is fixedly installed by arranging a fixed frame and an installation box, and the heat generated by the power battery assembly is conducted through the installation box, and the battery pack is buffered and protected by arranging a buffer assembly; the heat generated by the power battery is conducted to the heat dissipation device through the conduction panel, and the heat dissipation is cooled and dissipated through the heat dissipation device and the heat dissipation fan, and the heat dissipation device is regulated by the control device according to the working state of the power battery to adjust the heat dissipation rate, so that the temperature of the power battery pack is maintained in the optimal working state, thereby effectively improving the performance and service life of the power battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 This is a schematic diagram of the overall structure of a new energy mining car heat dissipation device;

[0041] Figure 2 It is a schematic diagram of a fixed frame structure;

[0042] Figure 3 Schematic diagram of the control device structure;

[0043] Figure 4 Schematic diagram of the heat dissipation device structure;

[0044] Figure 5 It is a schematic diagram of the structure of the heat dissipation component and the cooling component;

[0045] Figure 6Schematic diagram of the heat sink assembly structure;

[0046] Figure 7 Schematic diagram of the cooling tube group structure;

[0047] In the figure: 1. Fixed frame; 2. Mounting box; 3. Conducting panel; 4. Heat dissipation device; 5. Cooling fan; 6. Control device; 11. Limiting frame; 12. Connector; 13. Buffer assembly; 31. Slot; 41. Heat dissipation assembly; 42. Cooling assembly; 61. Telescopic shaft; 62. Return spring; 131. Connecting column; 132. Buffer spring; 411. Inner heat sink assembly; 412. Outer heat sink assembly; 421. Inner cooling tube group; 422. Outer cooling tube group; 423. Telescopic connecting tube; 4111. Heat sink; 4112. Connecting annulus; 4211. Inner cooling ring tube; 4212. Outer cooling ring tube; 4213. Exchange connecting tube. DETAILED DESCRIPTION

[0048] See also Figures 1 to 7 In an embodiment of the present invention, a new energy mining vehicle heat dissipation device includes:

[0049] The fixed frame 1 is connected to the mine car;

[0050] The installation box 2 is arranged on the fixed frame 1 and has a power battery pack inside;

[0051] The conductive panel 3 is slidably arranged at the lower part of the fixed frame 1 and fits with the bottom of the installation box 2;

[0052] a heat dissipation device 4, arranged at the bottom of the conductive panel 3;

[0053] A cooling fan 5 is fixed to the bottom of the heat dissipation device 4;

[0054] The control device 6 is connected to the heat dissipation fan 5 and the conduction panel 3.

[0055] In this embodiment, the fixed frame 1 includes:

[0056] The limiting frame 11 is fitted with the outer side of the installation box 2;

[0057] Connecting member 12, connecting the limiting frame 11 and the vehicle body;

[0058] Four buffer components 13 are provided in an annular arrangement and are fixed to the four corners of the limiting frame 11 and connected to the conductive panel 3 .

[0059] That is to say, under the action of the connecting member 12 and the limit frame 11, the installation box 2 is fixed on the vehicle body, and a power battery pack is installed inside the installation box 2. Then, with the cooperation of the buffer component 13 and the conduction panel 3, the vibration impact during the driving of the mining car is effectively absorbed, the fatigue damage risk of the power battery pack is reduced, and the service life is extended.

[0060] In this embodiment, the buffer component 13 includes:

[0061] The connecting column 131 is fixed to the bottom of the limiting frame 11 and is slidably connected to the conductive panel 3;

[0062] The buffer spring 132 is disposed on the connecting post 131 and is located below the conductive panel 3 .

[0063] That is to say, during the travel of the mine car, vibration impact is generated, and under the action of the impact, the mounting box 2 moves between the limit frames 11, and drives the conductive panel 3 to move on the connecting column 131, thereby compressing or stretching the buffer spring 132. The buffer spring 132 absorbs the vibration impact generated by the mine car during travel, effectively reducing the impact on the power battery pack, and providing effective buffering protection for the power battery pack.

[0064] In this embodiment, a plurality of slots 31 corresponding to the heat dissipation devices 4 are provided at the bottom of the conductive panel 3 .

[0065] That is to say, with the cooperation of the slot 31 and the heat dissipation device 4, the heat generated by the power battery pack during operation is conducted and transported through the conduction panel 3, thereby achieving the effect of cooling and heat dissipation. It should be noted that the bottom of the installation box 2 is directly connected to the conduction panel 3, that is, the bottom of the power battery pack is in contact with the conduction panel 3, and each side of the installation box 2 directly conducts the heat generated by the corresponding side of the power battery pack to the conduction panel 3, which facilitates the rapid transmission of the heat generated by the power battery pack and maintains the temperature of the power battery pack in the optimal working state.

[0066] In this embodiment, the heat dissipation device 4 includes:

[0067] The heat dissipation components 41 are dispersed outward from the center of the conductive panel 3 and correspond to the slots 31 at the bottom of the conductive panel 3;

[0068] The cooling assembly 42 is connected to the heat dissipation assembly 41 , and an input pipe and an output pipe are connected to the cooling assembly 42 .

[0069] That is to say, the heat generated by the operation of the power battery pack is transferred to the heat dissipation component 41 through the slot 31 at the bottom of the conduction panel 3, and is dispersed by the heat dissipation component 41. The coolant enters the cooling component 42 through the input pipe, and then flows through the heat dissipation component 41. After absorbing the heat transferred by the heat dissipation component 41, it is discharged through the output pipe, thereby achieving rapid heat dissipation.

[0070] In this embodiment, the heat dissipation component 41 includes:

[0071] The inner heat sink assembly 411 is fixedly connected to the bottom slot 31 of the conductive panel 3;

[0072] The outer heat sink assembly 412 has the same structure as the inner heat sink assembly 411 , is disposed outside the inner heat sink assembly 411 , and corresponds to the bottom slot 31 of the conductive panel 3 .

[0073] That is to say, the inner heat sink assembly 411 is always connected to the bottom slot 31 of the conductive panel 3, and the heat generated by the operation of the power battery pack is promptly extracted and dispersed to maintain the normal cooling of the power battery pack, that is, it is in the normal heat dissipation mode. When the power battery pack is running stably, the outer heat sink assembly 412 maintains a distance from the conductive panel 3. When the temperature of the power battery pack is too high and the inner heat sink assembly 411 is difficult to cool down in time, it switches to the enhanced heat dissipation mode, and the outer heat sink assembly 412 moves toward the conductive panel 3 and is connected to the slot 31. The power battery pack is cooled by the inner heat sink assembly 411 and the outer heat sink assembly 412 together, thereby increasing the heat dissipation rate and maintaining the temperature of the power battery pack at the optimal working state.

[0074] In this embodiment, the inner heat sink assembly 411 includes:

[0075] There are multiple heat sinks 4111 distributed in an annular pattern, and two adjacent heat sinks 4111 partially overlap.

[0076] The connecting annular surface 4112 is fixed to the bottom of the heat sink 4111 , and the connecting annular surface 4112 corresponding to the outer heat sink assembly 412 is fixedly connected to the top of the heat dissipation fan 5 .

[0077] That is to say, by connecting multiple heat sinks 4111 to the slots 31 at the bottom of the conductive panel 3, efficient heat transfer is achieved. Under the action of the connecting ring surface 4112, multiple heat sinks 4111 in the same group move synchronously to regulate the heat dissipation rate of the heat dissipation component 41.

[0078] In this embodiment, the cooling assembly 42 includes:

[0079] The inner cooling tube group 421 is fixedly connected to the heat sink 4111 of the inner heat sink assembly 411;

[0080] The outer cooling tube group 422 is fixedly connected to the heat sink 4111 of the outer heat sink assembly 412, and the outer cooling tube group 422 and the inner cooling tube group 421 have the same structure;

[0081] The telescopic connecting pipe 423 is provided in a plurality in an annular distribution and is arranged between the inner heat sink assembly 411 and the outer heat sink assembly 412 to connect the inner cooling tube group 421 and the outer cooling tube group 422 , and the telescopic connecting pipe 423 is connected to the input pipe.

[0082] That is to say, in the conventional heat dissipation mode, when the heat derived from the conductive panel 3 is cooled only by the inner heat sink assembly 411, the coolant enters the telescopic connecting pipe 423 through the input pipe, flows to the inner cooling pipe group 421 through the telescopic connecting pipe 423, takes away the heat on the inner heat sink assembly 411, and is discharged through the output pipe. In the enhanced heat dissipation mode, when the heat derived from the conductive panel 3 is cooled by the inner heat sink assembly 411 and the outer heat sink assembly 412, the outer heat sink assembly 412 first moves to the position of the slot 31 on the conductive panel 3 and connects with the slot 31. In addition, the outer cooling tube group 422 moves toward the inner cooling tube group 421, and the telescopic connecting tube 423 contracts. The coolant enters the telescopic connecting tube 423 through the input tube, flows through the telescopic connecting tube 423 to the inner cooling tube group 421 and the outer cooling tube group 422, takes away the heat on the inner heat sink assembly 411 and the outer heat sink assembly 412, and is discharged through the output tube to complete the heat dissipation work. Through the mutual cooperation of the inner and outer groups of heat sink assemblies and the inner and outer groups of cooling tube assemblies, the heat dissipation rate is adjusted in time to keep the temperature of the power battery pack in the optimal working state, effectively improving the performance and service life of the power battery.

[0083] In this embodiment, the inner cooling tube group 421 includes:

[0084] The inner cooling ring pipe 4211 is arranged on the inner side of the inner heat sink assembly 411;

[0085] The outer cooling ring pipe 4212 is arranged on the outer side of the inner heat sink assembly 411;

[0086] There are multiple exchange connecting pipes 4213 distributed in an annular manner, which pass through the overlapping area of ​​two adjacent heat sinks 4111 to connect the inner cooling ring pipe 4211 and the outer cooling ring pipe 4212. The outer cooling ring pipe 4212 of the inner cooling pipe group 421 is fixedly connected to the inner cooling ring pipe 4211 of the outer cooling pipe group 422 through the telescopic connecting pipe 423. The inner cooling ring pipe 4211 of the inner cooling pipe group 421 and the outer cooling ring pipe 4212 of the outer cooling pipe group 422 are connected to output pipes.

[0087] That is to say, the coolant enters the telescopic connecting tube 423 through the input pipe, flows to the outer cooling ring tube 4212 of the inner cooling tube group 421 and the inner cooling ring tube 4211 of the outer cooling tube group 422 through the telescopic connecting tube 423, and then passes through the exchange connecting tube 4213 on the heat sink 4111 in the inner heat sink assembly 411 and the outer heat sink assembly 412 respectively, takes away the heat on the heat sink 4111, and outputs through the output pipe on the inner cooling ring tube 4211 of the inner cooling tube group 421 and the outer cooling ring tube 4212 of the outer cooling tube group 422 to perform heat dissipation.

[0088] In this embodiment, the control device 6 includes:

[0089] The telescopic shaft 61 connects the cooling fan 5 and the bottom of the conductive panel 3. The telescopic shaft 61 is divided into a fixed shaft and an extension shaft. The two shafts are electrically connected in a sliding manner. The fixed shaft is fixedly connected to the cooling fan 5, and the extension shaft is fixedly connected to the bottom of the conductive panel 3.

[0090] The return spring 62 is sleeved on the telescopic shaft 61 and is located between the heat dissipation fan 5 and the conductive panel 3 .

[0091] That is, when the heat dissipation assembly 41 and the cooling assembly 42 disperse and cool the heat transmitted through the conductive panel 3, the heat dissipation fan 5 rotates at the same time to assist in cooling the temperature. Under the contraction action of the telescopic shaft 61, the heat dissipation fan 5 pushes the outer heat dissipation fin assembly 412 and the outer cooling tube group 422 toward the conductive panel 3, so that the heat dissipation fins 4111 in the outer heat dissipation fin assembly 412 are connected to the slots 31, thereby increasing the heat dissipation rate. Under the extension action of the telescopic shaft 61, and with the assistance of the return spring 62, the heat dissipation fan 5 pulls the outer heat dissipation fin assembly 412 and the outer cooling tube group 422 away from the conductive panel 3, so that the heat dissipation fins 4111 in the outer heat dissipation fin assembly 412 are disengaged from the slots 31, and heat is dissipated only through the inner heat dissipation fin assembly 411 and the inner cooling tube group 421, thereby reducing the heat dissipation rate and maintaining the temperature of the power battery pack in an optimal working state. In addition, with the cooperation of the heat dissipation device 4 and the heat dissipation fan 5, liquid cooling + air cooling synergy is achieved, heat is directly absorbed by the coolant, and air cooling enhances convection heat dissipation, thereby effectively improving heat dissipation efficiency.

[0092] During specific implementation, the power battery pack is first installed in the installation box 2, and the installation box 2 and the power battery pack are fixed to the vehicle body through the fixing frame 1. The mine car operates normally. With the cooperation of the buffer component 13 and the conduction panel 3, the vibration impact during the mine car travel is effectively absorbed, the fatigue damage risk of the power battery pack is reduced, and the service life is extended. Then, in the conventional heat dissipation mode, only the heat extracted from the conduction panel 3 is cooled by the inner heat sink component 411, and the heat dissipation is assisted by the heat dissipation fan 5. At this time, the coolant enters the telescopic connecting pipe 423 through the input pipe, and flows to the outer cooling ring pipe 4212 of the inner cooling tube group 421 through the telescopic connecting pipe 423, and then passes through the exchange connecting pipe 4213 on the heat sink 4111 in the inner heat sink component 411, takes away the heat on the heat sink 4111, and outputs it through the output pipe on the inner cooling ring pipe 4211 of the inner cooling tube group 421 to perform heat dissipation. In the enhanced heat dissipation mode The cooling liquid then flows through the inner cooling ring tube 4212 and the outer cooling ring tube 4211 of the outer cooling tube group 422, thereby removing the heat from the cooling fin 4111 and outputting the heat through the inner cooling ring tube 4211 of the inner cooling tube group 421 and the outer cooling ring tube 4212 of the outer cooling tube group 422.

[0093] The above is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, can make equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, which should be covered by the scope of protection of the present invention.

Claims

1. A new energy mining car heat dissipation device, characterized by: include: A fixed frame (1) is connected to the mine car; An installation box (2) is arranged on the fixed frame (1) and has a power battery pack inside; A conductive panel (3) is slidably arranged at the lower portion of the fixed frame (1) and fits in contact with the bottom of the installation box (2); a heat dissipation device (4) disposed at the bottom of the conductive panel (3); A heat dissipation fan (5) is fixed to the bottom of the heat dissipation device (4); a control device (6) connected to the cooling fan (5) and the conduction panel (3); The fixed frame (1) comprises: A limit frame (11) is fitted to the outer side of the installation box (2); A connecting member (12) connects the limiting frame (11) and the vehicle body; Four buffer components (13) are provided in an annular distribution, fixed at the four corners of the limiting frame (11), and connected to the conductive panel (3); The bottom of the conductive panel (3) is provided with a plurality of slots (31) corresponding to the heat dissipation devices (4); The heat dissipation device (4) comprises: A plurality of heat dissipation components (41) are dispersed outward from the center of the conductive panel (3) and correspond to the slots (31) at the bottom of the conductive panel (3); The cooling assembly (42) is connected to the heat dissipation assembly (41), and the cooling assembly (42) is connected to an input pipe and an output pipe.

2. A new energy mining car heat dissipation device according to claim 1, characterized in that: The buffer assembly (13) comprises: A connecting column (131) is fixed to the bottom of the limiting frame (11) and is slidably connected to the conductive panel (3); The buffer spring (132) is arranged on the connecting column (131) and is located below the conductive panel (3).

3. The new energy mining car heat dissipation device according to claim 1, characterized in that: The heat dissipation component (41) comprises: An inner heat sink assembly (411) is fixedly connected to the bottom slot (31) of the conductive panel (3); The outer heat sink assembly (412) has the same structure as the inner heat sink assembly (411), is arranged outside the inner heat sink assembly (411), and corresponds to the bottom slot (31) of the conductive panel (3).

4. A new energy mining car heat dissipation device according to claim 3, characterized in that: The inner heat sink assembly (411) comprises: A plurality of heat sinks (4111) are provided in an annular distribution, and two adjacent heat sinks (4111) partially overlap. The connecting annular surface (4112) is fixed to the bottom of the heat sink (4111), and the connecting annular surface (4112) corresponding to the outer heat sink assembly (412) is fixedly connected to the top of the heat dissipation fan (5).

5. The new energy mining car heat dissipation device according to claim 4, characterized in that: The cooling assembly (42) includes: An inner cooling tube assembly (421) is fixedly connected to the heat sink (4111) of the inner heat sink assembly (411); An external cooling tube group (422) is fixedly connected to the heat sink (4111) of the external heat sink assembly (412), and the external cooling tube group (422) and the internal cooling tube group (421) have the same structure; A plurality of telescopic connecting pipes (423) are provided in an annular distribution and are arranged between the inner heat sink assembly (411) and the outer heat sink assembly (412), connecting the inner cooling pipe group (421) and the outer cooling pipe group (422), and the telescopic connecting pipes (423) are connected to the input pipe.

6. The new energy mining car heat dissipation device according to claim 5, characterized in that: The inner cooling tube group (421) comprises: An inner cooling ring pipe (4211) is arranged on the inner side of the inner heat sink assembly (411); An outer cooling ring pipe (4212) is arranged outside the inner heat sink assembly (411); Multiple exchange connecting pipes (4213) are provided in an annular distribution, passing through the overlapping area of ​​two adjacent heat sinks (4111) to connect the inner cooling ring pipe (4211) and the outer cooling ring pipe (4212), and the outer cooling ring pipe (4212) of the inner cooling pipe group (421) is fixedly connected to the inner cooling ring pipe (4211) of the outer cooling pipe group (422) through the telescopic connecting pipe (423), and the inner cooling ring pipe (4211) of the inner cooling pipe group (421) and the outer cooling ring pipe (4212) of the outer cooling pipe group (422) are connected to output pipes.

7. The new energy mining car heat dissipation device according to claim 1, characterized in that: The control device (6) comprises: A telescopic shaft (61) connects the heat dissipation fan (5) and the bottom of the conductive panel (3), and the telescopic shaft (61) is divided into a fixed shaft and an extension shaft, which are electrically connected in a sliding manner, the fixed shaft is fixedly connected to the heat dissipation fan (5), and the extension shaft is fixedly connected to the bottom of the conductive panel (3); The return spring (62) is sleeved on the telescopic shaft (61) and is located between the heat dissipation fan (5) and the conduction panel (3).

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