Battery box frame splicing structure

Abstract

The utility model discloses a battery box enclosure splicing structure, comprising: a first side frame, a second side frame, a front frame and a rear frame; the first enclosure, the first side frame, the second side frame, the front frame and the rear frame are provided with a first enclosure; the second enclosure, the first side frame, the second side frame, the front frame and the rear frame are also provided with a second enclosure; the first enclosure fits the second enclosure; the height of the second enclosure is lower than that of the first enclosure; a step is formed between the first enclosure and the second enclosure, a liquid cooling plate is installed on the step, the connection between the liquid cooling plate and the box body is stable and reliable, the overall structure has high strength and strong versatility.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile power batteries, and in particular relates to a battery box frame splicing structure. Background Art

[0002] In the process of implementing the utility model, the inventor found that the prior art has at least the following problems:

[0003] A liquid cooling plate needs to be installed in the box of the power battery. In the traditional technology, the liquid cooling plate is welded to the box frame, but the contact area between the liquid cooling plate and the box frame is small, which easily leads to the problem of unreliable connection.

[0004] CN208157583U-Battery box liquid cooling plate and liquid-cooled battery box equipped with the battery box liquid cooling plate, discloses a battery box liquid cooling plate and a liquid-cooled battery box equipped with the battery box liquid cooling plate, wherein the battery box liquid cooling plate comprises: a metal plate body with an upper surface and a lower surface and a hot water exchange pipe made of a metal material; a linearly extended groove is formed on the upper surface of the metal plate body, the hot water exchange pipe is arranged in the groove and fixed to the metal plate body, but it also cannot solve the above-mentioned technical problems. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a battery box frame splicing structure, the connection between the liquid cooling plate and the box body is stable and reliable, the overall structure has high strength and strong versatility.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is: a battery box frame splicing structure having:

[0007] a first side frame, a second side frame, a front frame, and a rear frame;

[0008] A first surrounding frame, wherein the first side frame, the second side frame, the front frame and the rear frame are provided with a first surrounding frame at their edges;

[0009] A second surrounding frame is further provided on the edges of the first side frame, the second side frame, the front frame and the rear frame; the first surrounding frame is in contact with the second surrounding frame; the height of the second surrounding frame is lower than that of the first surrounding frame; a step is formed between the first surrounding frame and the second surrounding frame, and the liquid cooling plate is installed on the step.

[0010] Support platforms are arranged on both sides of the first surrounding frame and the second surrounding frame of the front frame and the rear frame; and the first surrounding frame and the second surrounding frame of the first side frame and the second side frame are overlapped on the support platforms.

[0011] The first side frame and the second side frame of the rear frame are also provided with notches, and the inlet and outlet of the liquid cooling plate are adapted to the notches.

[0012] The first surrounding frame and the second surrounding frame are an integrated structure; the liquid cooling plate is welded to the step.

[0013] The first surrounding frame and the second surrounding frame are welded to the first side frame, the second side frame, the front frame and the rear frame.

[0014] The first surrounding frame and the second surrounding frame are hollow structures.

[0015] One of the above technical solutions has the following advantages or beneficial effects: the connection between the liquid cooling plate and the box body is stable and reliable, the overall structure has high strength and strong versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the battery box frame splicing structure provided in an embodiment of the utility model;

[0017] Figure 2 for Figure 1 A schematic diagram of the structure of the battery box frame splicing structure;

[0018] Figure 3 for Figure 1 A schematic diagram of the structure of the battery box frame splicing structure;

[0019] Figure 4 for Figure 1 A schematic diagram of the structure of the battery box frame splicing structure;

[0020] Figure 5 for Figure 1 A schematic diagram of the structure of the battery box frame splicing structure;

[0021] Figure 6 for Figure 1 A schematic diagram of the structure of the battery box frame splicing structure;

[0022] Figure 7 for Figure 1 A schematic diagram of the structure of the battery box frame splicing structure;

[0023] The marks in the above figures are: 31, first side frame, 32, second side frame, 33, front frame, 34, rear frame, 41, first surrounding frame, 42, second surrounding frame, 43, step, 44, support platform, 45, notch. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figures 1 to 7 The battery box frame splicing structure comprises: a first side frame 31, a second side frame 32, a front frame 33 and a rear frame 34; a first frame 41, on the edge of the first side frame 31, the second side frame 32, the front frame 33 and the rear frame 34, a first frame 41 is provided; a second frame 42, on the edge of the first side frame 31, the second side frame 32, the front frame 33 and the rear frame 34, a second frame 42 is also provided; the first frame 41 is fitted with the second frame 42; the height of the second frame 42 is lower than the height of the first frame 41; a step 43 is formed between the first frame 41 and the second frame 42, and the liquid cooling plate is installed on the step 43. The stamped liquid cooling plate is spliced ​​with the aluminum profile frame (the first frame 41 and the second frame 42), and the overall structural strength is high; this splicing method is compatible with a variety of connection processes, such as stir friction welding, riveting, bolt connection and other processes, and has good process compatibility; in this splicing form, a liquid cooling plate can be compatible with aluminum profiles of various structural forms, and the mold has strong versatility; the connection between the liquid cooling plate and the box is stable and reliable, the overall structural strength is high, and the versatility is strong.

[0026] Support platforms 44 are provided on both sides of the first and second surrounding frames 41 and 42 of the front and rear frames 33 and 34, and the first and second surrounding frames 41 and 42 of the first and second side frames 31 and 32 are overlapped on the support platforms 44 to form an overlapped connection structure around.

[0027] A notch 45 is further provided on the first side frame 31 and the second side frame 32 of the rear frame 34 , and the inlet and outlet of the liquid cooling plate are adapted to the notch 45 , so as to facilitate the inlet and outlet of the liquid cooling plate to be led out.

[0028] The first enclosure 41 and the second enclosure 42 are an integrated structure, and the liquid cooling plate is welded to the step 43. The connection is stable and reliable, the overall structure has high strength, and strong versatility.

[0029] The first enclosure frame 41 and the second enclosure frame 42 are welded to the first side frame 31, the second side frame 32, the front frame 33, and the rear frame 34. The first enclosure frame 41 and the second enclosure frame 42 are hollow structures. The connection is stable and reliable, the overall structure has high strength, and strong versatility.

[0030] 1. The stamped liquid cooling plate is spliced ​​with the aluminum profile frame, and the overall structural strength is high;

[0031] 2. This splicing method is compatible with a variety of connection processes, such as stir friction welding, riveting, bolt connection and other processes, and has good process compatibility;

[0032] 3. With this type of splicing, a liquid cooling plate can be compatible with aluminum profiles of various structural forms, and the mold has strong versatility.

[0033] After adopting the above structure, the connection between the liquid cooling plate and the box body is stable and reliable, the overall structure has high strength and strong versatility.

[0034] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" 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 present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0035] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. The battery box frame splicing structure is characterized by: have: a first side frame, a second side frame, a front frame, and a rear frame; A first surrounding frame, wherein the first side frame, the second side frame, the front frame and the rear frame are provided with a first surrounding frame at their edges; A second surrounding frame is further provided on the edges of the first side frame, the second side frame, the front frame and the rear frame; the first surrounding frame is in contact with the second surrounding frame; the height of the second surrounding frame is lower than that of the first surrounding frame; a step is formed between the first surrounding frame and the second surrounding frame, and the liquid cooling plate is installed on the step.

2. The battery box frame splicing structure according to claim 1, characterized in that: Support platforms are arranged on both sides of the first surrounding frame and the second surrounding frame of the front frame and the rear frame; and the first surrounding frame and the second surrounding frame of the first side frame and the second side frame are overlapped on the support platforms.

3. The battery box frame splicing structure according to claim 2, characterized in that: The first side frame and the second side frame of the rear frame are also provided with notches, and the inlet and outlet of the liquid cooling plate are adapted to the notches.

4. The battery box frame splicing structure according to claim 3, characterized in that: The first surrounding frame and the second surrounding frame are an integrated structure; the liquid cooling plate is welded to the step.

5. The battery box frame splicing structure according to claim 4, characterized in that: The first surrounding frame and the second surrounding frame are welded to the first side frame, the second side frame, the front frame and the rear frame.

6. The battery box frame splicing structure according to claim 5, characterized in that: The first surrounding frame and the second surrounding frame are hollow structures.

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