PACK box body with heat dissipation structure

Abstract

The utility model belongs to the technical field of new energy electric vehicles, and particularly relates to a PACK box body with a heat dissipation structure, which comprises a box body, a heat dissipation device is arranged in the box body, and the heat dissipation device comprises a heat dissipation unit and a cooling unit. According to the PACK box body with the heat dissipation structure, the heat dissipation unit is arranged, a heat dissipation fan is started to dissipate heat of the box body, meanwhile, a motor is started to drive a lead screw to rotate, and a frame body is in threaded connection with the lead screw, so that the frame body drives the heat dissipation fan to move left and right along a limiting rod to dissipate heat of different positions in the box body, and the heat dissipation effect is improved; the problems that in the background technology, cooling liquid flows along a cooling pipe to conduct heat exchange with the interior of a battery, the heat dissipation mode is single, and the heat dissipation effect is poor are solved, the cooling unit is arranged, a pump body in the cooling box is started, the cooling liquid is fed into a water inlet pipe through the pump body, the cooling liquid flows along a connecting pipe, and the cooling liquid is cooled; and heat in the box body is exchanged, so that the heat dissipation effect of the box body is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy electric vehicles, in particular to a PACK box with a heat dissipation structure. Background Art

[0002] Due to the need for rapid charging and discharging of electric vehicles today, the high-rate charging and discharging performance of power battery systems has gradually become one of the key factors for car companies to recognize and choose them. Various electrochemical and physical changes occur during the charging and discharging process of power batteries, resulting in a large amount of heat. If timely and effective radiators are not used for heat dissipation, the power supply efficiency of the battery pack will decrease, and the charge and discharge cycle life of the battery pack will be sharply shortened.

[0003] At present, the heat dissipation effect of the existing battery pack radiator is not very ideal, and the structural design of the existing water-cooling heat dissipation system is unreasonable. The cooling pipe is used as the main heat exchange structure. The contact area between the cooling pipe and the power battery pack shell is very limited, and the heat exchange efficiency is limited. It is difficult to meet the cooling needs of power batteries in high power and hot environments, and cannot effectively solve the problem of excessive temperature during the battery pack power supply process.

[0004] For example, the integrated heat dissipation structure power battery PACK box disclosed in China CN208723049U forms a good upper and lower circulation heat dissipation loop through the upper and lower water chambers and the connected heat dissipation pipes, forming a multi-input and multi-output circulation heat dissipation system with uniform heat dissipation, very good heat dissipation performance and high heat dissipation efficiency. It can fully meet the heat dissipation needs of the power battery when it generates a lot of heat, make the temperature of the entire battery pack uniform, ensure the working performance of the battery pack, thereby ensuring the consistency of the battery temperature, increasing the battery life and improving the vehicle's cruising range.

[0005] However, the device cools the battery by exchanging heat with the inside of the battery through the coolant flowing along the heat dissipation pipe. The heat dissipation method is single and the heat dissipation effect is poor.

[0006] For this reason, we urgently need to provide a PACK box with a heat dissipation structure. Utility Model Content

[0007] The utility model aims to provide a PACK box with a heat dissipation structure to solve the problem in the above background technology that the heat dissipation method is single and the heat dissipation effect is poor by exchanging heat with the inside of the battery through the coolant flowing along the heat dissipation pipe to dissipate heat from the battery.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a PACK box with a heat dissipation structure, comprising a box, wherein a heat dissipation device is arranged inside the box.

[0009] The heat dissipation device comprises a heat dissipation unit and a cooling unit. The heat dissipation unit is arranged inside the box, and the cooling unit is arranged inside the box.

[0010] The heat dissipation unit includes a motor, a screw, a bearing, a limit rod, a frame and a heat dissipation fan. The motor is fixedly installed on the left side inside the box, one end of the screw is fixedly installed on the output end of the motor, the bearing is fixedly installed on the right side inside the box, the limit rod is fixedly installed inside the box and is directly below the screw rod, the frame is installed on the outside of the screw rod and the limit rod, and the heat dissipation fan is fixedly installed inside the heat dissipation fan.

[0011] Preferably, the cooling unit includes a cooling box, a water inlet pipe, a connecting pipe and a water outlet pipe. The cooling box is installed on the back of the box body, the water inlet pipe is connected to the left side of the bottom of the cooling box, one end of the connecting pipe is connected to the end of the water inlet pipe away from the cooling box and is located inside the box body, and the water outlet pipe is connected to the end of the connecting pipe away from the water inlet pipe.

[0012] Preferably, one end of the screw rod away from the motor is fixedly mounted on the inner ring of the bearing, and the bearing supports the screw rod, so that the screw rod rotates more smoothly.

[0013] Preferably, an internal thread is provided at the upper end of the frame, and the frame is threadedly connected to the outside of the screw rod. The limit rod passes through the lower end of the frame, and the movement of the frame is limited by the limit rod. When the motor drives the screw rod to rotate, the frame and the screw rod are threadedly connected, so that the frame drives the cooling fan to move left and right along the limit rod to dissipate heat inside the box.

[0014] Preferably, the cooling box contains coolant and a pump body is installed inside the cooling box. The output end of the pump body is connected to the water inlet pipe. The coolant is sent into the water inlet pipe through the pump body. The coolant flows along the connecting pipe and exchanges heat with the inside of the box, thereby dissipating the heat of the box.

[0015] Preferably, the front and rear surfaces of the box body are provided with heat dissipation grooves, through which the heat dissipation of the box body is achieved, and at the same time, air flow in the box body is achieved.

[0016] Preferably, the connecting pipe is coiled inside the box body, which increases the flow length of the coolant in the connecting pipe, increases the heat exchange efficiency, and improves the heat dissipation effect.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The PACK box with a heat dissipation structure is provided with a heat dissipation unit, and the heat dissipation fan is started to dissipate heat from the box. At the same time, the motor is started to drive the screw rod to rotate. The frame is threadedly connected to the screw rod, so that the frame drives the heat dissipation fan to move left and right along the limit rod to dissipate heat at different positions inside the box, thereby improving the heat dissipation effect. This solves the problem of the single heat dissipation method and poor heat dissipation effect proposed in the background technology that the coolant flows along the heat pipe to exchange heat with the inside of the battery to dissipate heat from the battery.

[0019] 2. The PACK box with a heat dissipation structure is provided with a cooling unit, and the pump body in the cooling box is started, and the coolant is sent into the water inlet pipe through the pump body. The coolant flows along the connecting pipe and exchanges heat with the inside of the box, thereby further improving the heat dissipation effect of the box. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a cross-sectional view of the internal structure of the utility model;

[0022] Figure 3 This is a rear view of the box of the utility model;

[0023] Figure 4 This is a schematic diagram of the cooling unit structure of the utility model.

[0024] In the figure: 1, box body; 201, motor; 202, screw rod; 203, bearing; 204, limit rod; 205, frame body; 206, cooling fan; 301, cooling box; 302, water inlet pipe; 303, connecting pipe; 304, water outlet pipe. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-Figure 4 , the utility model provides a technical solution:

[0027] Embodiment 1:

[0028] A PACK box with a heat dissipation structure comprises a box 1. The front and rear surfaces of the box 1 are provided with heat dissipation grooves. The heat dissipation of the box 1 is achieved through the heat dissipation grooves. At the same time, air flow in the box 1 is achieved. A heat dissipation device is arranged inside the box 1.

[0029] The heat dissipation device comprises a heat dissipation unit and a cooling unit. The heat dissipation unit is arranged inside the box body 1 , and the cooling unit is arranged inside the box body 1 .

[0030] The heat dissipation unit includes a motor 201, a screw rod 202, a bearing 203, a limit rod 204, a frame 205 and a heat dissipation fan 206. The motor 201 is fixedly installed on the left side of the box body 1. One end of the screw rod 202 is fixedly installed on the output end of the motor 201. The end of the screw rod 202 away from the motor 201 is fixedly installed on the inner ring of the bearing 203. The bearing 203 supports the screw rod 202 so that the screw rod 202 rotates more smoothly. The bearing 203 is fixedly installed on the right side of the box body 1. The limit rod 204 is fixedly installed inside the box body 1 and is located directly below the screw rod 202. The frame 205 is installed on the screw rod 20 2 and the outer side of the limit rod 204, the upper end of the frame 205 is provided with an internal thread, and the frame 205 is threadedly connected to the outer side of the screw rod 202, the limit rod 204 passes through the lower end of the frame 205, and the movement of the frame 205 is limited by the limit rod 204. When the motor 201 drives the screw rod 202 to rotate, the frame 205 is threadedly connected to the screw rod 202, so that the frame 205 drives the heat dissipation fan 206 to move left and right along the limit rod 204, and the internal position of the box body 1 is cooled. The heat dissipation fan 206 is fixedly installed inside the heat dissipation fan 206, and the heat dissipation fan 206 is used to dissipate the heat of the PACK box 1.

[0031] Embodiment 2:

[0032] On the basis of Example 1: the cooling unit includes a cooling box 301, a water inlet pipe 302, a connecting pipe 303 and a water outlet pipe 304, the cooling box 301 is installed on the back of the box body 1, the cooling box 301 is filled with coolant, and a pump body is installed inside the cooling box 301, the output end of the pump body is connected to the water inlet pipe 302, and the coolant is sent into the water inlet pipe 302 through the pump body, the coolant flows along the connecting pipe 303, and exchanges heat with the inside of the box body 1, so as to dissipate heat from the box body 1, the water inlet pipe 302 is connected to the left side of the bottom of the cooling box 301, one end of the connecting pipe 303 is connected to the end of the water inlet pipe 302 away from the cooling box 301 and is located inside the box body 1, the water outlet pipe 304 is connected to the end of the connecting pipe 303 away from the water inlet pipe 302, so that the coolant after heat exchange is discharged from the water outlet pipe 304.

[0033] Embodiment three:

[0034] On the basis of the second embodiment: the connecting pipe 303 is coiled inside the box body 1, which increases the flow length of the coolant in the connecting pipe 303, increases the heat exchange efficiency, and improves the heat dissipation effect.

[0035] When in use, the cooling fan 206 is started to dissipate heat for the box body 1, and the motor 201 is started to drive the screw rod 202 to rotate. The frame body 205 is threadedly connected to the screw rod 202, so that the frame body 205 drives the cooling fan 206 to move left and right along the limit rod 204 to dissipate heat at different positions inside the box body 1. The pump body in the cooling box 301 is started, and the coolant is sent into the water inlet pipe 302 through the pump body. The coolant flows along the connecting pipe 303 and exchanges heat with the inside of the box body 1, thereby further improving the heat dissipation effect of the box body 1.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A PACK box with a heat dissipation structure, comprising a box (1), characterized in that: A heat dissipation device is provided inside the box (1); The heat dissipation device comprises a heat dissipation unit and a cooling unit, the heat dissipation unit is arranged inside the box (1), and the cooling unit is arranged inside the box (1); The heat dissipation unit comprises a motor (201), a screw rod (202), a bearing (203), a limit rod (204), a frame (205) and a heat dissipation fan (206); the motor (201) is fixedly mounted on the left side of the interior of the box (1); one end of the screw rod (202) is fixedly mounted on the output end of the motor (201); the bearing (203) is fixedly mounted on the right side of the interior of the box (1); the limit rod (204) is fixedly mounted inside the box (1) and is located directly below the screw rod (202); the frame (205) is mounted on the outside of the screw rod (202) and the limit rod (204); and the heat dissipation fan (206) is fixedly mounted inside the heat dissipation fan (206).

2. The PACK box with a heat dissipation structure according to claim 1, characterized in that: The cooling unit comprises a cooling box (301), a water inlet pipe (302), a connecting pipe (303) and a water outlet pipe (304); the cooling box (301) is installed on the back of the box body (1); the water inlet pipe (302) is connected to the left side of the bottom of the cooling box (301); one end of the connecting pipe (303) is connected to the end of the water inlet pipe (302) away from the cooling box (301) and is located inside the box body (1); and the water outlet pipe (304) is connected to the end of the connecting pipe (303) away from the water inlet pipe (302).

3. The PACK box with a heat dissipation structure according to claim 1, characterized in that: One end of the screw rod (202) away from the motor (201) is fixedly mounted on the inner ring of the bearing (203), and the bearing (203) supports the screw rod (202), so that the screw rod (202) rotates more smoothly.

4. The PACK box with a heat dissipation structure according to claim 1, characterized in that: An internal thread is formed at the upper end of the frame (205), and the frame (205) is threadedly connected to the outside of the screw rod (202), and the limiting rod (204) passes through the lower end of the frame (205).

5. The PACK box with a heat dissipation structure according to claim 2, characterized in that: The cooling box (301) contains cooling liquid, and a pump body is installed inside the cooling box (301), and the output end of the pump body is connected to the water inlet pipe (302).

6. The PACK box with a heat dissipation structure according to claim 1, characterized in that: The front and rear surfaces of the box body (1) are provided with heat dissipation grooves.

7. The PACK box with a heat dissipation structure according to claim 2, characterized in that: The connecting pipe (303) is coiled inside the box (1).

Images