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CN-121983702-A - Agricultural equipment lithium battery pack with temperature control structure

CN121983702ACN 121983702 ACN121983702 ACN 121983702ACN-121983702-A

Abstract

The invention discloses an agricultural equipment lithium battery pack with a temperature control structure, which comprises a box body, wherein lithium batteries which are arranged at equal intervals are arranged in the box body, a phase-change material layer fixedly connected with the lithium batteries is sleeved on the lithium batteries, two groups of heat exchange tubes which are arranged at equal intervals are sleeved on the phase-change material layer, the heat exchange tubes are C-shaped, two ends of the heat exchange tubes are respectively communicated with a water inlet pipe and a water outlet pipe, and a water inlet box and a water outlet box which are arranged in a staggered manner are fixedly connected to the front surface of the box body. According to the invention, the intensity of heat radiation to different parts of the lithium battery is flexibly controlled according to the heating degree of different parts of the lithium battery, so that excessive heat radiation to parts of the lithium battery, which are not seriously heated, is effectively avoided, the temperature of all parts of the lithium battery is kept in an optimal range, and the working state of the lithium battery is improved.

Inventors

  • QIAN ZHENGDONG
  • TAN XIUQUAN
  • Tan Xiuhai

Assignees

  • 江苏兆宁环保科技有限公司

Dates

Publication Date
20260505
Application Date
20260119

Claims (8)

  1. 1. The utility model provides an agricultural equipment lithium cell group that possesses control by temperature change structure, includes box (1), its characterized in that the inside of box (1) is provided with lithium cell (2) that the equidistance was arranged, the cover is equipped with phase change material layer (3) rather than fixed connection on lithium cell (2), the cover is equipped with two sets of equidistant heat exchange tube (4) of arranging on phase change material layer (3), the shape of heat exchange tube (4) is the C font, the both ends of heat exchange tube (4) all communicate respectively and have inlet tube (5) and outlet pipe (6), the positive fixedly connected with of box (1) advances water box (7) and outlet box (8) of staggered arrangement, the positive one end of inlet tube (5) runs through box (1) and is linked together with inlet box (7), the positive one end of outlet pipe (6) runs through box (1) and is linked together with outlet box (8), the front of box (1) is provided with two water collecting box (9), the positive one end of inlet box (7) and outlet box (8) all is linked together with two water collecting box (10) respectively, two sets of water collecting box (9) are linked together between two positive water box (9) and two water collecting box (10) are linked together respectively, the back of water tank (11) respectively with box (7) and play water box (8) fixed connection, be provided with cooling body (12) on water tank (11), temperature sensor (13) are installed to the inner wall of outlet pipe (6), install flow valve (14) on inlet tube (5), controller (15) that are used for controlling regulation flow valve (14) are installed in the left side of box (1), the input signal of controller (15) is connected with temperature regulation module (16), the input and temperature regulation module (16) signal connection of temperature sensor (13), the top fixedly connected with case lid (17) of box (1), install charge-discharge interface (18) on case lid (17), be provided with sealing mechanism (19) on charge-discharge interface (18), the top of water tank (11) is interluded three electrothermal rod (20) all with controller (15) signal connection.
  2. 2. The lithium battery pack with the temperature control structure for the agricultural equipment, as set forth in claim 1, wherein the heat dissipation mechanism (12) comprises four transverse pipes (121), two ends of the four transverse pipes (121) are respectively communicated with two water collecting boxes (9) and one water tank (11), a water pump (122) is installed on each of the two left transverse pipes (121), an input end of the water pump (122) is in signal connection with the controller (15), two heat dissipation fins (123) are installed on the inner wall of the water tank (11), and the front faces of the two heat dissipation fins (123) penetrate through and extend to the front face of the water tank (11).
  3. 3. The lithium battery pack with the temperature control structure for the agricultural equipment, which is disclosed in claim 1, is characterized in that the front surface of the water tank (11) is fixedly connected with a mounting frame (21), a fan (22) is embedded on the mounting frame (21), and the input end of the fan (22) is in signal connection with the controller (15).
  4. 4. The lithium battery pack with the temperature control structure for the agricultural equipment, which is disclosed in claim 3, is characterized in that the front surface of the mounting frame (21) is fixedly connected with a guide cylinder (23), and the fan (22) is positioned on the inner side of the guide cylinder (23).
  5. 5. The lithium battery pack with the temperature control structure for the agricultural equipment, which is disclosed in claim 1, is characterized in that a second temperature sensor (24) is installed on the inner wall of the water collecting box (9) on the right side, the output end of the second temperature sensor (24) is connected with a power saving module (25) in a signal manner, and the output end of the power saving module (25) is connected with a controller (15) in a signal manner.
  6. 6. The agricultural equipment lithium battery pack with the temperature control structure according to claim 1, wherein the sealing mechanism (19) comprises a ring groove (191), the ring groove (191) is formed in the inner wall of the charge-discharge interface (18), an air bag (192) is fixedly connected to the inner wall of the ring groove (191), a square box (193) is fixedly connected to the top of the charge-discharge interface (18), a screw rod (194) which is rotationally connected with the square box (193) is inserted into the back of the square box (193), a piston plate (195) which is in threaded connection with the screw rod is sleeved on the screw rod (194), the outer side of the piston plate (195) is in contact with the inner wall of the square box (193), a vertical pipe (196) is communicated with the bottom of the square box (193), and the bottom end of the vertical pipe (196) penetrates through the charge-discharge interface (18) and is communicated with the air bag (192).
  7. 7. The lithium battery pack with the temperature control structure for the agricultural equipment of claim 6, wherein the front face of the piston plate (195) is fixedly connected with two lock bars (26), and one end of the front face of each lock bar (26) penetrates through and extends to the front face of the square box (193).
  8. 8. The lithium battery pack with the temperature control structure for the agricultural equipment, as set forth in claim 7, is characterized in that an adjusting rod (27) in threaded connection with one end of the front face of the locking rod (26) is inserted, and the bottom end of the adjusting rod (27) is arranged towards the middle of the charge-discharge interface (18).

Description

Agricultural equipment lithium battery pack with temperature control structure Technical Field The invention relates to the technical field of lithium battery packs, in particular to an agricultural equipment lithium battery pack with a temperature control structure. Background The lithium battery pack of the agricultural equipment with the temperature control structure is a lithium ion battery system specially designed for agricultural machinery, integrates a Temperature Management System (TMS), and can keep the working temperature of the battery in an optimal range under various environmental conditions. The lithium battery pack of the agricultural equipment is usually connected in series by a plurality of lithium batteries, when the lithium battery pack is used daily, heat is generated due to the fact that the lithium batteries work, the heat dissipation structure is needed to dissipate heat of the battery pack, but the heat dissipation degree of each part of the lithium batteries is different, if the whole heat dissipation is adopted, the temperature of the part of the lithium batteries which do not need to dissipate heat can be reduced to be lower than the optimal range, the working state of the battery pack can be influenced, a charging and discharging interface of the battery pack lacks a sealing structure, dust or moisture is filled in the working environment where the agricultural equipment is located, and the dust and the moisture can enter from gaps between joints of the plug of the agricultural equipment and the lithium battery pack, so that the situation of faults is easy to occur, and the lithium battery pack of the agricultural equipment with the temperature control structure is needed. Disclosure of Invention Aiming at the problems in the prior art, the invention aims to provide an agricultural equipment lithium battery pack with a temperature control structure so as to solve the problems in the background technology. In order to achieve the above purpose, the present invention adopts the following technical scheme; The utility model provides an agricultural equipment lithium cell group that possesses control by temperature change structure, includes the box, the inside of box is provided with the lithium cell that the equidistance was arranged, the cover is equipped with the phase change material layer rather than fixed connection on the lithium cell, the cover is equipped with two sets of equidistance heat transfer tubes of arranging on the phase change material layer, the shape of heat transfer tube is the C font, the both ends of heat transfer tube all communicate respectively has inlet tube and outlet pipe, the front fixedly connected with staggered arrangement's of box inlet box and outlet box, the front one end of inlet tube runs through the box and is linked together with the inlet box, the front one end of outlet pipe runs through the box and is linked together with the outlet box, the front of box is provided with two water collecting boxes fixed connection and is linked together with it, two be provided with the water tank between the water collecting boxes, the back of water tank respectively with inlet box and outlet box fixed connection, be provided with heat dissipation mechanism on the water tank, the inner wall mounting has temperature sensor to install the temperature controller, the temperature controller is connected with the signal input and is installed to the control device, the signal input terminal is connected with the signal conditioning module, the signal conditioning device has the top is installed to the signal conditioning device, and the signal conditioning device is connected with the top. As a further description of the above technical solution: The heat dissipation mechanism comprises four transverse pipes, two ends of each transverse pipe are respectively communicated with two water collecting boxes and a water tank, the water pumps are respectively arranged on the left two transverse pipes, the input ends of the water pumps are connected with the controller through signals, two heat dissipation fins are arranged on the inner wall of the water tank, and the front faces of the two heat dissipation fins penetrate through and extend to the front face of the water tank. As a further description of the above technical solution: The front fixedly connected with mounting bracket of water tank, the last fan that inlays of mounting bracket, the input and the controller signal connection of fan. As a further description of the above technical solution: the front fixedly connected with guiding cylinder of mounting bracket, the fan is located the inboard of guiding cylinder. As a further description of the above technical solution: The inner wall of the water collection box on the right side is provided with a second temperature sensor, the output end of the second temperature sensor is connected with a power saving module in a signal mode, and the output end of the p