Four-side coated liquid-cooled battery pack

Abstract

The utility model relates to the technical field of batteries, and provides a four-side coated liquid-cooled battery pack which comprises a shell, a liquid cooling mechanism is arranged in the shell and comprises a water pump fixed on the inner bottom wall of the shell, two groups of refrigeration pipes are fixedly connected to the lower part of the inner wall of the shell, and a partition plate is fixedly connected to the inner wall of the shell. A battery body is installed on the inner side wall of the shell, annular pipes arranged at equal intervals are arranged on the outer surface of the battery body in a sleeving mode, two connecting pipes are fixedly connected to the inner side wall of the shell in a ring mode, the annular pipes communicate with the two connecting pipes correspondingly, and the outer surfaces of the two annular pipes communicate with a water inlet pipe and a water outlet pipe correspondingly. And the top end of the water inlet pipe penetrates through the partition plate and is communicated with the output end of the water pump. According to the technical scheme, the problems that in the working process of a battery pack in the prior art, a large amount of heat is generated in the battery pack, and the charging and discharging cycle life of a battery system is shortened due to the too high working temperature are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, and in particular to a four-sided clad liquid-cooled battery pack. Background Art

[0002] A battery is a cup, tank or other container or part of a composite container that contains an electrolyte solution and metal electrodes to generate an electric current. It is a device that can convert chemical energy into electrical energy and has a positive electrode and a negative electrode. With the advancement of technology, batteries generally refer to small devices that can generate electrical energy.

[0003] In the prior art, there is a utility model with authorization announcement number CN220628109U, named: battery pack. This patent has a first cover body and a second cover body separately arranged, so that the electrical components and the battery module can be maintained separately without interfering with each other; and because the high-voltage copper bus and the low-voltage wiring harness are distributed on different sides of the battery module, it is beneficial to prevent the occurrence of electromagnetic interference, thereby improving the maintenance convenience and safety of the battery pack.

[0004] However, during operation, the battery pack will generate a large amount of heat inside, and excessively high operating temperature will reduce the charge and discharge cycle life of the battery system.

[0005] In the prior art, there is a utility model with authorization announcement number CN220628071U, named: Battery Pack. This patent can realize the downward setting of the explosion-proof valve, and the gas generated inside can be discharged promptly and quickly through the exhaust holes in the module bottom plate and the exhaust channels of the bottom guard plate, so as to reduce the probability of thermal runaway and enhance the bottom protection performance and battery energy density of the battery pack.

[0006] However, this patent lacks an effective heat dissipation structure, and the internal heat of the battery is difficult to dissipate effectively when it is working. Utility Model Content

[0007] The utility model provides a four-sided liquid-cooled battery pack, which solves the problem in the related art that a large amount of heat is generated inside the battery pack during operation, and an excessively high operating temperature will reduce the charge and discharge cycle life of the battery system.

[0008] The technical solution of the utility model is as follows: a four-sided covered liquid-cooled battery pack, comprising an outer shell, wherein a liquid cooling mechanism is arranged inside the outer shell, the liquid cooling mechanism comprises a water pump fixed to the inner bottom wall of the outer shell, two groups of refrigeration pipes are fixedly connected to the lower part of the inner wall of the outer shell, a partition is fixedly connected to the inner wall of the outer shell, a battery body is installed on the inner wall of the outer shell, annular tubes arranged at equal distances are sleeved on the outer surface of the battery body, two connecting tubes are connected to the fixing ring of the inner wall of the outer shell, the annular tubes are respectively connected to the two connecting tubes, the outer surfaces of the two annular tubes are respectively connected to a water inlet pipe and a drain pipe, the bottom end of the drain pipe passes through the partition and extends to the lower part of the partition, the top end of the water inlet pipe passes through the partition and is connected to the output end of the water pump.

[0009] Preferably, the outer surfaces of the two groups of refrigeration tubes are fixedly connected with fixing plates, and the side surfaces of the two fixing plates away from each other are fixedly connected to the inner wall of the outer shell, which can further fix the refrigeration tubes and effectively prevent the refrigeration tubes from shaking or displacing during the refrigeration process.

[0010] Preferably, two mounting plates are fixedly connected to the outer surface of the water pump, and the bottom surfaces of the mounting plates are fixedly connected to the inner bottom wall of the outer shell, which can effectively improve the stability of the water pump during use and effectively prevent the water pump from being displaced during operation, thereby preventing the water pump from colliding with the refrigeration pipe.

[0011] Preferably, the upper surface of the battery body is fixedly connected with fixing rods arranged at equal distances, and the top ends of the fixing rods are fixedly connected to the inner top wall of the outer shell, which can further fix the battery body, effectively avoid collision between the battery body and the annular tube, and avoid damage to the outer surface of the annular tube.

[0012] Preferably, a water injection pipe is fixedly connected to the left side of the shell, and a valve is sleeved on the outer surface of the water injection pipe to facilitate the staff to replenish the water inside the shell, and also to facilitate the staff to discharge the water inside the shell, which is convenient for use.

[0013] Preferably, a transverse plate is fixedly connected to the outer surface of the annular tube, and the left and right ends of the transverse plate are fixedly connected to the inner wall of the outer shell, which can effectively improve the stability of each annular tube during use, effectively avoid collision between the annular tubes, and avoid damage to the annular tubes.

[0014] Preferably, two fans are fixedly embedded in the upper surface of the shell, and a stabilizing plate is fixedly connected to the outer surface of the fan, and the bottom surface of the stabilizing plate is fixedly connected to the upper surface of the shell, and a filter is fixedly connected to the upper surface of each fan. The fan can introduce air into the interior of the shell and blow the heat around the battery body out of the shell through the exhaust holes, thereby further cooling the battery body.

[0015] Preferably, exhaust holes are provided on both the left and right sides of the shell, and an operation indicator plate is fixedly connected to the front of the shell to facilitate the discharge of heat inside the shell. At the same time, the operation indicator plate can effectively remind the staff to operate in accordance with the correct operating method, effectively avoiding damage to the battery pack due to improper operation.

[0016] The working principle and beneficial effects of the utility model are:

[0017] 1. In the utility model, the refrigeration pipe works to lower the temperature of the water body. The cold water is injected into the connecting pipe and the annular pipe through the water pump through the water inlet pipe to reduce the temperature around the battery body. The water body enters the lower part of the partition through the drain pipe to cool the water body again. The air is introduced into the interior of the shell through the fan. The air absorbs the low temperature on the outer surface of the annular pipe and becomes cold wind. The cold wind blows directly on the outer surface of the battery body to cool the battery body. After that, the air is discharged from the exhaust hole. The battery inside the battery pack can be effectively cooled as a whole, effectively avoiding excessively high operating temperature that will reduce the charge and discharge cycle life of the battery system. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0019] Figure 1 It is a front view schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 It is a first cross-sectional schematic diagram of the three-dimensional structure of the utility model;

[0021] Figure 3 It is a second cross-sectional schematic diagram of the three-dimensional structure of the utility model;

[0022] Figure 4 It is a three-dimensional structural schematic diagram of the water pump of the utility model.

[0023] In the figure: 1. outer shell; 2. liquid cooling mechanism; 201. annular tube; 202. battery body; 203. connecting tube; 204. horizontal plate; 205. fixing rod; 206. drain pipe; 207. partition; 208. fixing plate; 209. refrigeration pipe; 2010. water pump; 2011. water inlet pipe; 3. exhaust hole; 4. stabilizing plate; 5. operation indicator board; 6. fan; 7. filter; 8. mounting plate; 9. water injection pipe. DETAILED DESCRIPTION

[0024] The following will be combined with 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 of 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.

[0025] Example 1

[0026] like Figure 1 to Figure 4 As shown, this embodiment proposes a four-sided covered liquid-cooled battery pack, including an outer shell 1, a liquid cooling mechanism 2 is arranged inside the outer shell 1, the liquid cooling mechanism 2 includes a water pump 2010 fixed to the inner bottom wall of the outer shell 1, two groups of refrigeration pipes 209 are fixedly connected to the lower part of the inner wall of the outer shell 1, a partition 207 is fixedly connected to the inner wall of the outer shell 1, a battery body 202 is installed on the inner wall of the outer shell 1, and the outer surface of the battery body 202 is sleeved with annular tubes 201 arranged at equal distances, and two connecting tubes 203 are connected to the inner wall fixing ring of the outer shell 1, and the annular tubes 201 are respectively connected to the two connecting tubes 203, and the outer surfaces of the two annular tubes 201 are respectively connected to a water inlet pipe 2011 and a drain pipe 206, the bottom end of the drain pipe 206 passes through the partition 207 and extends to the lower part of the partition 207, and the top end of the water inlet pipe 2011 passes through the partition 207 and is connected to the output end of the water pump 2010.

[0027] Reference Figure 4 The outer surfaces of the two groups of refrigeration tubes 209 are fixedly connected with fixing plates 208, and the side surfaces of the two fixing plates 208 that are away from each other are fixedly connected to the inner wall of the shell 1, which can further fix the refrigeration tubes 209 and effectively prevent the refrigeration tubes 209 from shaking or displacement during the refrigeration process.

[0028] Reference Figure 3-4 Two mounting plates 8 are fixedly connected to the outer surface of the water pump 2010, and the bottom surface of the mounting plates 8 is fixedly connected to the inner bottom wall of the outer shell 1, which can effectively improve the stability of the water pump 2010 during use and effectively prevent the water pump 2010 from being displaced during operation, thereby preventing the water pump 2010 from colliding with the refrigeration pipe 209.

[0029] Reference Figure 2-Figure 3 The upper surface of the battery body 202 is fixedly connected with fixing rods 205 arranged at equal distances, and the top of the fixing rods 205 is fixedly connected to the inner top wall of the outer shell 1, which can further fix the battery body 202, effectively avoiding the collision between the battery body 202 and the annular tube 201, and avoiding damage to the outer surface of the annular tube 201.

[0030] Example 2

[0031] like Figure 1 As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment also proposes that a water injection pipe 9 is fixedly connected to the left side of the shell 1, and a valve is provided on the outer surface of the water injection pipe 9 to facilitate the staff to replenish the water inside the shell 1, and also to facilitate the staff to discharge the water inside the shell 1, which is convenient for use.

[0032] Reference Figure 2-Figure 3 The outer surface of the annular tube 201 is fixedly connected with a transverse plate 204, and the left and right ends of the transverse plate 204 are fixedly connected to the inner wall of the shell 1, which can effectively improve the stability of each annular tube 201 during use, effectively avoid collision between the annular tubes 201, and avoid damage to the annular tubes 201.

[0033] Reference Figure 1 Two fans 6 are fixedly embedded on the upper surface of the shell 1, and the outer surface of the fans 6 is fixedly connected to a stabilizing plate 4, the bottom surface of the stabilizing plate 4 is fixedly connected to the upper surface of the shell 1, and the upper surface of each fan 6 is fixedly connected to a filter 7. The fans 6 can introduce air into the interior of the shell 1 and blow the heat around the battery body 202 out of the shell 1 through the exhaust hole 3, thereby further cooling the battery body 202.

[0034] Reference Figure 1 Exhaust holes 3 are provided on the left and right sides of the shell 1, and an operation indicator board 5 is fixedly connected to the front of the shell 1 to facilitate the discharge of heat inside the shell 1. At the same time, the operation indicator board 5 can effectively remind the staff to operate in accordance with the correct operating method, effectively avoiding damage to the battery pack due to improper operation.

[0035] During use, the staff injects water into the bottom of the outer shell 1 through the water injection pipe 9, and the refrigeration pipe 209 works to lower the temperature of the water. Then the water pump 2010 injects cold water into the connecting pipe 203 and the inside of the annular tube 201 through the water inlet pipe 2011 to lower the temperature around the battery body 202, thereby cooling the battery body 202. Then the water enters the lower part of the partition 207 through the drain pipe 206 to cool the water again. At the same time, the fan 6 works, and the fan 6 introduces air into the interior of the outer shell 1. The air absorbs the low temperature on the outer surface of the annular tube 201 and becomes cold wind. The cold wind blows directly on the outer surface of the battery body 202 to cool the battery body 202. Then the air is discharged from the exhaust hole 3.

[0036] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A four-sided liquid-cooled battery pack, characterized in that: The invention comprises a shell (1), wherein a liquid cooling mechanism (2) is provided inside the shell (1), wherein the liquid cooling mechanism (2) comprises a water pump (2010) fixed to the inner bottom wall of the shell (1), wherein two groups of cooling pipes (209) are fixedly connected to the lower part of the inner wall of the shell (1), wherein a partition (207) is fixedly connected to the inner wall of the shell (1), wherein a battery body (202) is installed on the inner side wall of the shell (1), wherein an annular pipe (201) arranged at equal distances is sleeved on the outer surface of the shell (1), and wherein the outer surface of the battery body (202) is provided with a water pump (201) fixedly connected to the inner bottom wall of the shell (1). The inner wall fixing ring of (1) is connected to two connecting pipes (203), the annular pipe (201) is respectively connected to the two connecting pipes (203), the outer surfaces of the two annular pipes (201) are respectively connected to a water inlet pipe (2011) and a drainage pipe (206), the bottom end of the drainage pipe (206) passes through the partition (207) and extends to the lower part of the partition (207), and the top end of the water inlet pipe (2011) passes through the partition (207) and is connected to the output end of the water pump (2010).

2. A four-sided liquid-cooled battery pack according to claim 1, characterized in that: The outer surfaces of the two groups of refrigeration tubes (209) are both fixedly connected to fixing plates (208), and the side surfaces of the two fixing plates (208) that are away from each other are both fixedly connected to the inner side wall of the outer shell (1).

3. The four-sided liquid-cooled battery pack according to claim 1, characterized in that: Two mounting plates (8) are fixedly connected to the outer surface of the water pump (2010), and the bottom surfaces of the mounting plates (8) are fixedly connected to the inner bottom wall of the outer shell (1).

4. The four-sided liquid-cooled battery pack according to claim 1, characterized in that: The upper surface of the battery body (202) is fixedly connected to fixing rods (205) arranged at equal distances, and the top ends of the fixing rods (205) are fixedly connected to the inner top wall of the outer shell (1).

5. The four-sided liquid-cooled battery pack according to claim 1, characterized in that: A water injection pipe (9) is fixedly connected to the left side surface of the housing (1), and a valve is sleeved on the outer surface of the water injection pipe (9).

6. The four-sided liquid-cooled battery pack according to claim 1, characterized in that: A transverse plate (204) is fixedly connected to the outer surface of the annular tube (201), and both left and right ends of the transverse plate (204) are fixedly connected to the inner side wall of the outer shell (1).

7. The four-sided liquid-cooled battery pack according to claim 1, characterized in that: Two fans (6) are fixedly embedded on the upper surface of the housing (1); a stabilizing plate (4) is fixedly connected to the outer surface of the fan (6); the bottom surface of the stabilizing plate (4) is fixedly connected to the upper surface of the housing (1); and a filter screen (7) is fixedly connected to the upper surface of each fan (6).

8. The four-sided liquid-cooled battery pack according to claim 1, characterized in that: Air exhaust holes (3) are provided on both left and right side surfaces of the housing (1), and an operation indicator panel (5) is fixedly connected to the front surface of the housing (1).

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