Heat dissipation plate structure of new energy battery pack

Abstract

The utility model discloses a heat dissipation plate structure of a new energy battery pack, which comprises a heat dissipation mechanism, the heat dissipation mechanism comprises a lower plate and an upper plate, the upper plate is internally provided with a plurality of heat conduction grooves, a heat dissipation channel is formed among the plurality of heat conduction grooves, two ends of the heat dissipation channel are respectively provided with a liquid inlet and a liquid outlet, and the liquid inlet is communicated with the liquid outlet. The lower plate and the upper plate are attached to each other, the periphery of the lower plate and the periphery of the upper plate are fixed through a plurality of connecting mechanisms, each connecting mechanism comprises a cylinder and a short cylinder, the cylinders are embedded into the mounting upper plate, the short cylinders are embedded into the mounting lower plate, and the cylinders abut against the short cylinders. The upper plate protrudes outwards to form a plurality of heat conduction grooves to form a heat dissipation channel, and cooling liquid is circularly injected into the heat dissipation channel through the liquid inlet and the liquid outlet, so that the effect of reducing the temperature of the battery pack is achieved, and meanwhile, the heat dissipation plate is convenient to mount and dismount in the later period.

Description

Technical Field

[0001] The utility model relates to the technical field of heat dissipation plates for battery packs, in particular to a heat dissipation plate structure for a new energy battery pack. Background Art

[0002] With the increasing popularity of power batteries, fast charging has become a constant pursuit. The basic principle of existing fast charging technology is to reduce charging time by charging with high current. However, high current charging causes a sharp temperature rise in individual cells, which in turn deteriorates the thermal environment of the entire battery pack, seriously affecting the life of the battery pack. Heat generated during the battery charging and discharging process can cause the battery pack to overheat, significantly reducing the capacity and performance of the individual cells during charging and discharging. This in turn affects the energy storage cabinet cluster, the individual battery pack module, and the range of new energy vehicles. Furthermore, excessively high battery pack temperatures not only reduce battery performance and shorten service life, but can also cause safety incidents such as fire and explosion. Therefore, timely heat dissipation of the battery is particularly important.

[0003] In the existing technology, air-cooling heat dissipation is generally adopted, that is, a heat exchanger and a cooling fan are installed on the battery box to achieve heat dissipation of the battery pack; however, the heat conduction of the heat exchanger is limited, resulting in poor heat dissipation effect of the battery pack module. At the same time, the heat exchanger is heavy, which is not conducive to the lightweight design of the battery pack and has a small scope of application. Utility Model Content

[0004] The purpose of the utility model is to provide a heat dissipation plate structure for a new energy battery pack, which has the advantage of good heat dissipation effect and solves the problem that the battery pack is currently heavier due to the use of a heat exchanger to dissipate heat from the battery pack.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a heat dissipation plate structure for a new energy battery pack, comprising a heat dissipation mechanism, the heat dissipation mechanism comprising a lower plate and an upper plate, a plurality of heat-conducting grooves being provided in the upper plate, a heat dissipation channel being formed between the plurality of heat-conducting grooves, a liquid inlet and a liquid outlet being provided at both ends of the heat dissipation channel, the lower plate and the upper plate being fitted together, and the lower plate and the upper plate being fixed around by a plurality of connecting mechanisms, each of the connecting mechanisms comprising a cylinder and a short cylinder, wherein the cylinders are embedded and installed in the upper plate, and the short cylinders are embedded and installed in the lower plate, the cylinders and the short cylinders abut against each other, a limiting mechanism extending into the short cylinder is slidably installed in the cylinder, and a circular plate is provided inside the cylinder, a circular ring is provided above the circular plate, a cavity is opened in the cylinder, and a spring is installed in the cavity.

[0006] Preferably, the heat-conducting grooves are arranged in an equidistant array, with a depth between 5 mm and 30 mm, and the heat-conducting grooves are in contact with the lower plate.

[0007] Preferably, the four sides of the upper plate are convex to form a plurality of heat dissipation cavities, and the heat dissipation cavities are attached to the upper end surface of the lower plate.

[0008] Preferably, an annular groove is provided at the bottom end of the inner portion of the short tube, and two vertical grooves communicating with the annular groove are symmetrically provided on the short tube.

[0009] Preferably, the limiting mechanism includes a first cylinder and a third cylinder, the third cylinder is placed above the first cylinder, the first cylinder is rotatably connected to the cylinder, and a second cylinder is provided at the bottom end of the first cylinder, and two limiting columns are symmetrically constructed at the bottom end of the outer edge surface of the second cylinder, the bottom ends of the two limiting columns are both arranged in an arc shape, and the top ends are both arranged in a flat surface, and the top end of the first cylinder passes through the spring from bottom to top and is provided with a limiting plate.

[0010] Preferably, a first slide is provided at the top of the third cylinder and a second slide is provided at the bottom. The top of the first slide is in contact with the lower end face of the circular ring, and a long groove is provided in the middle of the top of the first slide. A limiting groove is provided in the middle of the bottom end of the second slide, and the upper end face of the second slide is in contact with the lower end face of the circular plate.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0012] 1. The utility model sets a lower plate, an upper plate, a heat conduction groove, a liquid inlet and a liquid outlet. The upper plate and the lower plate are attached to each other, and a plurality of heat conduction grooves formed by the convex outer surface of the upper plate form a heat dissipation channel. Cooling liquid is circulated into the interior through the liquid inlet and the liquid outlet, thereby achieving the effect of reducing the temperature of the battery pack.

[0013] 2. The utility model sets a cylinder, a short cylinder, an annular groove, a vertical groove, a first cylinder, a second cylinder and a limiting column. The short cylinder and the cylinder are respectively fixedly connected to the lower plate and the upper plate. The second cylinder at the bottom of the first cylinder is embedded in the short cylinder. After the two limiting columns are embedded in the vertical groove, the first cylinder is rotated to drive the limiting columns to rotate in the annular groove, thereby completing the fixation of the cylinder and the short cylinder, achieving the effect of fixing the lower plate and the upper plate, and facilitating the later installation and disassembly.

[0014] 3. The utility model is provided with a spring, a first cylinder, a limiting plate, a third cylinder, a first slide, a second slide, a long groove and a limiting groove. By pressing the first slide, the limiting groove cover at the bottom of the second slide is closed on the limiting plate, the third cylinder is driven to rotate by the long groove, and the limiting plate is driven to rotate by the limiting groove. After the rotation is completed, the third cylinder is released, and the second slide is pushed by the spring to reset the third cylinder, which can avoid the phenomenon of disconnection between the cylinder and the short cylinder due to accidental touch. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the disassembly of the utility model;

[0017] Figure 3 For this utility model Figure 1 Schematic diagram of partial disassembly of the connecting mechanism;

[0018] Figure 4 For this utility model Figure 1 Schematic diagram of a partial vertical section of the middle connection mechanism.

[0019] The reference numerals and names in the figures are as follows:

[0020] 1. Heat dissipation mechanism; 2. Lower plate; 3. Upper plate; 301. Heat conduction groove; 302. Liquid inlet; 303. Liquid outlet; 4. Connecting mechanism; 401. Cylinder; 402. Short cylinder; 403. Ring groove; 404. Vertical groove; 405. Round plate; 406. Ring; 407. Spring; 5. Limiting mechanism; 501. First cylinder; 502. Second cylinder; 503. Limiting column; 504. Limiting plate; 505. Third cylinder; 506. First slide; 507. Second slide; 508. Long groove; 509. Limiting groove. DETAILED DESCRIPTION

[0021] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0022] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0023] In the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components. A person of ordinary skill in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on the specific circumstances.

[0024] See also Figures 1 to 4 The utility model provides an embodiment: a heat dissipation plate structure of a new energy battery pack, including a heat dissipation mechanism 1, the heat dissipation mechanism 1 includes a lower plate 2 and an upper plate 3, a plurality of heat conduction grooves 301 are provided in the upper plate 3, a heat dissipation channel is formed between the plurality of heat conduction grooves 301, and a liquid inlet 302 and a liquid outlet 303 are respectively provided at both ends of the heat dissipation channel. The lower plate 2 and the upper plate 3 are fitted with each other, and the lower plate 2 and the upper plate 3 are fixed around by a plurality of connecting mechanisms 4. Each connecting mechanism 4 includes a cylinder 401 and a short cylinder 402, wherein the cylinder 401 is provided with a plurality of heat conduction grooves 301, and the cylinder 402 is provided with a plurality of heat conduction grooves 301. The cylinders 401 are embedded in the upper plate 3, and the short cylinders 402 are embedded in the lower plate 2. The cylinders 401 and the short cylinders 402 are in contact with each other. A limiting mechanism 5 extending into the short cylinder 402 is slidably installed in the cylinder 401, and a circular plate 405 is provided inside the cylinder 401. A ring 406 is provided above the circular plate 405. A cavity is opened in the cylinder 401, and a spring 407 is installed in the cavity. The heat conduction grooves 301 are arranged in an equidistant array, and their depth values ​​are between 5mm-30mm. The heat conduction grooves 301 are in contact with the lower plate 2, and the upper plate 3 The four sides of the short cylinder 402 are convex to form multiple heat dissipation cavities, which are in contact with the upper end surface of the lower plate 2. The bottom end of the short cylinder 402 is provided with an annular groove 403, and the short cylinder 402 is symmetrically provided with two vertical grooves 404 connected to the annular groove 403. The limiting mechanism 5 includes a first cylinder 501 and a third cylinder 505. The third cylinder 505 is placed above the first cylinder 501. The first cylinder 501 is rotatably connected to the cylinder 401, and a second cylinder 502 is provided at the bottom end of the first cylinder 501. The outer edge of the second cylinder 502 is symmetrically structured with two limiting columns 503. The bottom ends of the two limiting columns 503 are both arranged in an arc shape, and the top ends are both arranged in a flat shape. The top end of the first cylinder 501 passes through the spring 407 from bottom to top and is provided with a limiting plate 504. The top end of the third cylinder 505 is provided with a first slide 506, and the bottom end is provided with a second slide 507. The top end of the first slide 506 is in contact with the lower end surface of the ring 406, and a long groove 508 is provided in the middle of the top end of the first slide 506. A limiting groove 509 is provided in the middle of the bottom end of the second slide 507, and the upper end surface of the second slide 507 is in contact with the lower end surface of the circular plate 405.

[0025] Working principle: When the present invention is in operation, the upper plate 3 is fitted on the lower plate 2, the second cylinder 502 at the bottom of the first cylinder 501 is embedded in the short cylinder 402, and the two limiting columns 503 are embedded in the vertical groove 404. Then, by pressing the first slide 506, the limiting groove 509 at the bottom of the second slide 507 is covered on the limiting plate 504, and the third cylinder 505 is rotated by the long groove 508, and the limiting groove 509 drives the limiting plate 504 to rotate. When the limiting plate 504 rotates, The rotation of the first cylinder 501 drives the limiting column 503 to rotate in the annular groove 403 to complete the fixation of the cylinder 401 and the short cylinder 402. After the rotation is completed, the third cylinder 505 is released, and the spring 407 pushes the second slide 507 to reset the third cylinder 505. After the installation is completed, the upper plate 3 and the lower plate 2 are fitted together, and the multiple heat-conducting grooves 301 formed by the protrusion of the upper plate 3 form a heat dissipation channel, and the coolant is circulated into it through the liquid inlet 302 and the liquid outlet 303.

[0026] It will be apparent 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 may be embodied in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A heat dissipation plate structure for a new energy battery pack, comprising a heat dissipation mechanism (1), characterized in that: The heat dissipation mechanism (1) comprises a lower plate (2) and an upper plate (3), wherein a plurality of heat-conducting grooves (301) are provided in the upper plate (3), a heat dissipation channel is formed between the plurality of heat-conducting grooves (301), and a liquid inlet (302) and a liquid outlet (303) are provided at both ends of the heat dissipation channel, respectively. The lower plate (2) and the upper plate (3) are fitted to each other, and the lower plate (2) and the upper plate (3) are fixed around by a plurality of connecting mechanisms (4), and each of the connecting mechanisms (4) comprises a cylinder (401) and a short cylinder (402). 2), wherein the cylinders (401) are all embedded and installed in the upper plate (3), and the short cylinders (402) are all embedded and installed in the lower plate (2), the cylinders (401) and the short cylinders (402) are in contact with each other, a limiting mechanism (5) extending into the short cylinder (402) is slidably installed in the cylinder (401), and a circular plate (405) is provided inside the cylinder (401), and a circular ring (406) is provided above the circular plate (405), and a cavity is opened in the cylinder (401), and a spring (407) is installed in the cavity.

2. The heat dissipation plate structure of a new energy battery pack according to claim 1, characterized in that: The heat-conducting grooves (301) are arranged in an equidistant array, with a depth value between 5 mm and 30 mm, and the heat-conducting grooves (301) are in contact with the lower plate (2).

3. The heat dissipation plate structure of a new energy battery pack according to claim 1, characterized in that: The four sides of the upper plate (3) are convex to form a plurality of heat dissipation cavities, and the heat dissipation cavities are in contact with the upper end surface of the lower plate (2).

4. The heat dissipation plate structure of a new energy battery pack according to claim 1, characterized in that: An annular groove (403) is provided at the bottom of the short tube (402), and two vertical grooves (404) communicating with the annular groove (403) are symmetrically provided on the short tube (402).

5. The heat dissipation plate structure of a new energy battery pack according to claim 1, characterized in that: The limiting mechanism (5) comprises a first cylinder (501) and a third cylinder (505), wherein the third cylinder (505) is placed above the first cylinder (501), the first cylinder (501) is rotatably connected to the cylinder (401), and a second cylinder (502) is provided at the bottom end of the first cylinder (501), and two limiting columns (503) are symmetrically constructed at the bottom end of the outer edge surface of the second cylinder (502), the bottom ends of the two limiting columns (503) are both arranged in an arc shape, and the top ends are both arranged in a flat surface, and the top end of the first cylinder (501) passes through a spring (407) from bottom to top and is provided with a limiting plate (504).

6. The heat dissipation plate structure of a new energy battery pack according to claim 5, characterized in that: The top of the third cylinder (505) is provided with a first slide plate (506), and the bottom is provided with a second slide plate (507). The top of the first slide plate (506) is in contact with the lower end surface of the circular ring (406), and a long groove (508) is provided in the middle of the top of the first slide plate (506). The middle of the bottom of the second slide plate (507) is provided with a limiting groove (509), and the upper end surface of the second slide plate (507) is in contact with the lower end surface of the circular plate (405).

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