Battery pack box body with heat dissipation function

Abstract

The utility model relates to the technical field of battery pack box bodies, in particular to a battery pack box body with a heat dissipation function, which comprises a battery pack box body, a plurality of supporting columns are arranged at the bottom end of the battery pack box body at equal intervals, sliding grooves are formed in the supporting columns, sliding rods are connected in the sliding grooves in a sliding mode, springs are sleeved outside the supporting columns, and the supporting columns are connected with the sliding rods in a sliding mode. The bottom ends of the springs are fixedly connected to the bottom end of the battery pack box body, the top ends of the springs abut against the top ends of the sliding rods, the top ends of the sliding rods abut against the grid, the top end of the grid abuts against a plurality of water cooling plates, and the top ends of the water cooling plates are provided with battery packs; the water cooling plate and the bottom end of the battery pack are provided with the heat dissipation space under the action of the grid and the supporting structure, so that the heat dissipation performance of the battery pack box body is improved on the basis of the water cooling plate, and the water cooling plate can be driven to move upwards under the action of spring reset, so that the water cooling plate is convenient to disassemble.

Description

Technical Field

[0001] The utility model relates to a battery pack box, in particular to a battery pack box with a heat dissipation function, belonging to the technical field of battery pack boxes. Background Art

[0002] As the main energy storage component of the battery pack installed on electric vehicles, the power battery pack is a key component of electric vehicles and directly affects the good performance of electric vehicles. Due to the limited loading space on the vehicle, the vehicle requires a large number of batteries, and the batteries are closely arranged and connected. When the vehicle is running under different driving conditions such as high speed, low speed, acceleration, and deceleration, the battery will discharge at different rates and generate a large amount of heat at different heat generation rates. In addition, the accumulation of time and the influence of space will cause uneven heat accumulation, resulting in complex and changeable operating environment temperature of the battery pack. Therefore, the battery pack box is required to have good heat dissipation function. The traditional battery pack box directly installs a water cooling plate at the bottom of the battery pack to dissipate heat for the battery pack through the water cooling plate.

[0003] However, the bottom of the water cooling plate directly contacts the bottom of the battery pack case, which makes the bottom of the battery pack case completely sealed, lacks space for heat dissipation, and the heat dissipation effect is not good enough. In addition, the water cooling plate directly contacts the bottom and is not easy to disassemble and take away, which affects the comfort and functionality of use. Utility Model Content

[0004] The purpose of the utility model is to provide a battery pack case with a heat dissipation function in order to solve the above-mentioned problem. Under the action of the grille and the supporting structure, the water cooling plate and the bottom end of the battery pack have heat dissipation space. Therefore, the heat dissipation performance of the battery pack case body is improved on the basis of the water cooling plate, and the water cooling plate can be driven to move upward under the action of the spring return force, thereby facilitating the disassembly of the water cooling plate.

[0005] The utility model achieves the above-mentioned purpose through the following technical scheme: a battery pack case with a heat dissipation function, comprising a battery pack case body, a support structure is installed at the bottom end of the battery pack case body, the support structure comprises a plurality of support columns, a plurality of support columns are equidistantly installed at the bottom end of the battery pack case body, a plurality of support columns are provided with slide grooves inside, a slide rod is slidably connected in the slide groove, a spring is sleeved on the outside of the support column, the bottom end of the spring is fixedly connected to the bottom end of the battery pack case body, the top end of the spring abuts against the top end of the slide rod, the top end of the slide rod abuts against a grille, the top end of the grille abuts against a plurality of water cooling plates, and the top end of the water cooling plate is installed with a battery pack.

[0006] Preferably, the cross section of the slide rod is in a "T"-shaped structure, and the diameter of the end of the slide rod is larger than the diameter of the spring.

[0007] Preferably, the water cooling plate and the grille are both provided with a plurality of through holes, and the water cooling plate and the grille are slidably connected to the same positioning column in the through holes on the same longitudinal straight line, the positioning column is located at the edge of the water cooling plate, and the bottom end of the positioning column is fixedly connected to the bottom end of the battery pack box body.

[0008] Preferably, the end of the positioning column is in a truncated cone shape, and the height of the positioning column after passing through the through hole on the water cooling plate is not higher than the height of the top end of the water cooling plate.

[0009] Preferably, water pipes are installed at both ends of the water-cooling plates, a water inlet is installed on one of the water-cooling plates, and a water outlet is installed on the other water-cooling plate.

[0010] The beneficial effect of the utility model is as follows: the grille is placed inside the battery pack case body until the bottom end of the grille contacts the sliding rod, and then a water-cooling plate is placed on the top end of the grille, the water-cooling plate is pressed downward, and the water-cooling plate is fixed by bolts. At this time, the grille contacts the sliding rod to slide downward in the sliding groove, and the spring contracts at the same time. Since the support column has a certain height, a certain space is always reserved at the bottom end of the battery pack case body. Under the action of the grille and the supporting structure, the water-cooling plate and the bottom end of the battery pack have heat dissipation space. Therefore, the heat dissipation performance of the battery pack case body is improved on the basis of the water-cooling plate. When the water-cooling plate needs to be disassembled, the bolts on the water-cooling plate are removed. After the resistance force is lost, the spring resets, driving the sliding rod to slide upward, and the sliding rod contacts the grille and the water-cooling plate to move upward, thereby facilitating the disassembly of the water-cooling plate and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the connection structure between the grille and the water cooling plate of the utility model;

[0013] Figure 3 for Figure 2 An enlarged schematic diagram of part A is shown;

[0014] Figure 4 It is a cross-sectional view of the whole of the utility model.

[0015] In the figure: 1. Battery pack body; 2. Water cooling plate; 3. Water pipe; 4. Positioning column; 5. Grille; 6. Support structure; 601. Support column; 602. Slide rod; 603. Spring; 604. Slide groove; 7. Through hole. DETAILED DESCRIPTION

[0016] 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.

[0017] See also Figure 1-Figure 4 As shown, a battery pack case with heat dissipation function includes a battery pack case body 1, a support structure 6 is installed at the bottom end of the battery pack case body 1, and the support structure 6 includes a plurality of support columns 601. A plurality of support columns 601 are equidistantly installed at the bottom end of the battery pack case body 1, and a slide groove 604 is opened inside the plurality of support columns 601. A slide rod 602 is slidably connected in the slide groove 604. A spring 603 is sleeved on the outside of the support column 601. The bottom end of the spring 603 is fixedly connected to the bottom end of the battery pack case body 1, and the top end of the spring 603 abuts against the top end of the slide rod 602. The top end of the slide rod 602 abuts against a grille 5. The top end of the grille 5 abuts against a plurality of water cooling plates 2. The top end of the water cooling plate 2 is installed with a battery pack. Slide the grille 5 downward until the bottom end of the grille 5 abuts against the top end of the slide rod 602, and then place the water cooling plates 2 in sequence so that the top end of the water cooling plates 2 The grille 5 is pressed against the cooling plate 2, and the water cooling plate 2 is continuously pressed downward. At this time, the sliding rod 602 slides into the inner part of the sliding groove 604 under the force of the water cooling plate 2, and at the same time drives the spring 603 to contract. Then, a bolt is used to penetrate the end of the positioning column 4 to fix the water cooling plate 2, and then the battery pack is placed on the top of the water cooling plate 2, thereby completing the installation of the battery pack. Since the support column 601 has a certain height, a certain space is always reserved at the bottom end of the battery pack case body 1. Under the action of the grille 5 and the supporting structure 6, the bottom ends of the water cooling plate 2 and the battery pack have heat dissipation space. Therefore, the heat dissipation performance of the battery pack case body 1 is improved on the basis of the water cooling plate 2. When the water cooling plate 2 is to be disassembled, the bolt passing through the end of the positioning column 4 is removed. After the resistance force is lost, the spring 603 is reset, driving the sliding rod 602 to slide upward. The sliding rod 602 resists the grille 5 and the water cooling plate 2 and moves upward, thereby facilitating the disassembly of the water cooling plate 2 and improving work efficiency.

[0018] As a technical optimization solution of the present invention, the cross-section of the slide rod 602 is a "T"-shaped structure, and the diameter of the end of the slide rod 602 is larger than the diameter of the spring 603; since the grille 5 is mesh-shaped, the slide rod 602 is set to a "T"-shaped structure, thereby effectively increasing the contact area between the slide rod 602 and the grille 5, so that the slide rod 602 can more stably support the grille 5.

[0019] As a technical optimization scheme of the utility model, a plurality of through holes 7 are provided on the water cooling plate 2 and the grille 5. The water cooling plate 2 and the grille 5 are slidably connected with the same positioning column 4 in the through holes 7 located on the same longitudinal straight line. The positioning column 4 is at the edge of the water cooling plate 2, and the bottom end of the positioning column 4 is fixedly connected to the bottom end of the battery pack case body 1; the through holes 7 on the grille 5 are aligned with the positioning columns 4, so that the grille 5 slides downward on the positioning columns 4 until the bottom end of the grille 5 hits the top end of the slide bar 602, and then the water cooling plates 2 are placed in sequence, and the through holes 7 on the water cooling plate 2 are aligned with the positioning columns 4, so that the water cooling plate 2 slides on the positioning columns 4, and the top end of the water cooling plate 2 hits the grille 5. The setting of the positioning columns 4 facilitates the rapid positioning and fixing of the water cooling plate 2 and the grille 5.

[0020] As a technical optimization solution of the utility model, the end of the positioning column 4 is truncated cone-shaped, and the height of the positioning column 4 after passing through the through hole 7 on the water-cooling plate 2 is not higher than the height of the top of the water-cooling plate 2; the trapezoidal structure has a guiding function, which is convenient for the sliding of the water-cooling plate 2 and the grille 5. The length of the positioning column 4 is required to be no higher than the top of the water-cooling plate 2 after being fixed by bolts, so as to avoid the protrusion of the positioning column 4 affecting the installation of the battery pack.

[0021] As a technical optimization solution of the utility model, water pipes 3 are installed at both ends of the water-cooling plate 2, one of the water-cooling plates 2 is installed with a water inlet, and the other water-cooling plate 2 is installed with a water outlet; so that the water-cooling plate 2 can operate effectively.

[0022] When the utility model is in use, first align the through hole 7 on the grille 5 with the positioning column 4, so that the grille 5 slides downward on the positioning column 4 until the bottom end of the grille 5 hits the top end of the slide bar 602, then place the water-cooling plate 2 in sequence, align the through hole 7 on the water-cooling plate 2 with the positioning column 4, so that the water-cooling plate 2 slides on the positioning column 4, the top end of the water-cooling plate 2 hits the grille 5, and the water-cooling plate 2 is continuously pressed downward. At this time, under the force of the water-cooling plate 2, the slide bar 602 slides into the inside of the slide groove 604, and at the same time drives the spring 603 to contract, and then a bolt is used to penetrate the end of the positioning column 4 to fix the water-cooling plate 2, and then the battery pack is placed on the top end of the water-cooling plate 2. , thereby completing the installation of the battery pack. Since the support column 601 has a certain height, a certain space is always reserved at the bottom end of the battery pack box body 1. Under the action of the grille 5 and the support structure 6, the water-cooled plate 2 and the bottom end of the battery pack have heat dissipation space. Therefore, the heat dissipation performance of the battery pack box body 1 is improved on the basis of the water-cooled plate 2; when the water-cooled plate 2 is to be disassembled, the bolt passing through the end of the positioning column 4 is removed, and the spring 603 is reset after losing the resistance force, driving the slide bar 602 to slide upward, and the slide bar 602 resists the grille 5 and the water-cooled plate 2 and moves upward, thereby facilitating the disassembly of the water-cooled plate 2 and improving work efficiency.

[0023] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0024] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A battery pack case with heat dissipation function, comprising a battery pack case body (1), characterized in that: A support structure (6) is installed at the bottom end of the battery pack case body (1), and the support structure (6) includes a plurality of support columns (601). The bottom end of the battery pack case body (1) is equidistantly installed with a plurality of support columns (601), and a slide groove (604) is provided inside each of the plurality of support columns (601). A slide rod (602) is slidably connected inside the slide groove (604). A spring (603) is sleeved on the outside of the support column (601), and the bottom end of the spring (603) is fixedly connected to the bottom end of the battery pack case body (1). The top end of the spring (603) abuts against the top end of the slide rod (602), and the top end of the slide rod (602) abuts against the grille (5). The top end of the grille (5) abuts against a plurality of water cooling plates (2), and the top end of the water cooling plate (2) is installed with a battery pack.

2. The battery pack box with heat dissipation function according to claim 1, characterized in that: The cross section of the slide rod (602) is in a "T"-shaped structure, and the diameter of the end of the slide rod (602) is greater than the diameter of the spring (603).

3. The battery pack box with heat dissipation function according to claim 1, characterized in that: The water cooling plate (2) and the grille (5) are both provided with a plurality of through holes (7), and the water cooling plate (2) and the grille (5) are slidably connected to the same positioning column (4) in the through holes (7) located on the same longitudinal straight line.

4. The battery pack box with heat dissipation function according to claim 3, characterized in that: The positioning column (4) is located at the edge of the water cooling plate (2), and the bottom end of the positioning column (4) is fixedly connected to the bottom end of the battery pack box body (1).

5. The battery pack box with heat dissipation function according to claim 3, characterized in that: The end of the positioning column (4) is in a truncated cone shape, and after the positioning column (4) passes through the through hole (7) on the water cooling plate (2), its height is no higher than the height of the top of the water cooling plate (2).

6. The battery pack box with heat dissipation function according to claim 4, characterized in that: Water pipes (3) are installed at both ends of the water cooling plate (2), a water inlet is installed on one of the water cooling plates (2), and a water outlet is installed on the other water cooling plate (2).

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