Standard box body of new energy power battery

Abstract

The utility model discloses a new energy power battery standard box which comprises a bottom plate, a front frame and a rear frame, the front frame and the rear frame are welded and assembled at the front end and the rear end of the bottom plate, the bottom plate is provided with a main plate body, a left edge beam and a right edge beam, the left edge beam and the right edge beam are integrally formed at the left end and the right end of the main plate body, and the front frame is provided with a front blocking plate and a front edge beam integrally formed on the upper side of the front blocking plate. The rear frame is provided with a rear blocking plate and a rear edge beam integrally formed on the upper side of the rear blocking plate, a through main channel is formed in the main plate body, the front blocking plate and the rear blocking plate are connected to the front end and the rear end of the main channel in a blocking mode respectively, and a water inlet channel and a water outlet channel are formed in the left end and the right end of the front blocking plate and communicate with the main channel; the left edge beam and the right edge beam both protrude upwards relative to the main plate body, and a rectangular frame structure is defined by the front edge beam, the left edge beam, the rear edge beam and the right edge beam. The battery box disclosed by the utility model has the beneficial effects that the box body assembly structure is simpler and more convenient, the sealing performance of the circulating water path in the box body bottom plate is good, and the safety performance of the battery box body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery boxes, and in particular to a standard box for a new energy power battery. Background Art

[0002] With the global emphasis on environmental protection and sustainable development, the new energy vehicle market continues to expand, and the new energy vehicle industry is experiencing unprecedented growth, which is directly driving the demand for new energy power battery enclosures. As the protective shell of the battery system, the battery enclosure must have a high level of safety performance, helping the battery to ventilate and dissipate heat, provide insulation and waterproofing, and protect the battery from collisions.

[0003] A water cooling system is installed in the bottom plate of the standard box of new energy power batteries. The traditional bottom plate structure is to weld two bottom plates together by stir welding, and then weld the front and rear frames and module mounting beams to the bottom plate. Stir welding deformation leads to poor flatness of the bottom plate. There is a risk of welding through the bottom plate during the welding process of other parts, thereby reducing the sealing of the internal circulating water circuit of the bottom plate, which can easily cause water ingress and cause a short circuit in the battery circuit, affecting the safety performance of the battery box. Utility Model Content

[0004] In view of this, the present invention provides a new energy power battery standard box, the purpose of which is to provide a simpler box assembly structure to ensure the sealing of the circulating water channel inside the box bottom plate.

[0005] To achieve the above purpose, the technical solution of this utility model is as follows:

[0006] The invention comprises a bottom plate and a front frame and a rear frame welded and assembled at the front and rear ends of the bottom plate, the bottom plate having a main plate body and a left beam and a right beam integrally formed at the left and right ends of the main plate body, the front frame having a front blocking plate and a front side beam integrally formed on the upper side of the front blocking plate, the rear frame having a rear blocking plate and a rear side beam integrally formed on the upper side of the rear blocking plate, a main channel running through the main plate body along its length direction is provided inside, the front blocking plate and the rear blocking plate are respectively blocked and connected to the front and rear ends of the main channel, a water inlet channel and a water outlet channel are provided at the left and right ends of the front blocking plate, and the water inlet channel and the water outlet channel are both connected to the main channel;

[0007] The left side beam and the right side beam are both raised upward relative to the main board body, and the front side beam, the left side beam, the rear side beam and the right side beam form a rectangular frame structure.

[0008] With the above structure, the battery box is easy to assemble, and the bottom plate is formed by integral extrusion, which can reduce the poor flatness of the bottom plate caused by welding deformation, reduce the risk of welding through the bottom plate during welding other parts, ensure the sealing of the circulating water channel inside the bottom plate, and improve the safety performance of the battery box.

[0009] Preferably, spacers are distributed within the main channel, each of which forms a circulation channel, one end of which is connected to the water inlet channel and the other end to the water outlet channel. This structure is simple, allows cooling water to flow throughout the entire mainboard, and provides a good cooling effect.

[0010] Preferably, the connection between the front blocking plate and the rear blocking plate and the main body is provided with a blocking groove, which is used for sealing welding. The above structure enhances the airtightness of welding.

[0011] Preferably, the left and right beams are provided with first bevels at their ends in the longitudinal direction, and the front and rear beams are provided with second bevels at their ends in the longitudinal direction, and the first and second bevels are welded in a butt-to-face relationship.

[0012] Preferably, the water inlet and outlet are rectangular hollow chambers, each having water holes distributed at the rear end thereof, a support structure between adjacent water holes, and a water spout connected to the front end of the rectangular hollow chamber for drawing and drawing cooling water. Compared to a traditional single, long rectangular water flow section, this structure creates multiple support structures between the hole-like structures, ensuring greater support strength and more welding area in the bottom plate's connected areas, thereby ensuring weld strength and airtightness in this area.

[0013] Preferably, a protrusion extends from the rear end of the front blocking plate, the protrusion is inserted into the interior of the main plate body, and the water hole is arranged in the protrusion. The above structure is easy to install and has good air tightness.

[0014] Preferably, the upper surface of the main body is welded with a front module beam and a rear module beam for mounting the battery module. The above structure facilitates the installation of the battery module and is compact.

[0015] Preferably, a plurality of mounting brackets are provided on the upper surface of the main body between the front module beam and the front side beam, and between the rear module beam and the rear side beam. The mounting brackets are welded to the mounting plate at both ends and fitted with rivet nuts in the middle. The mounting brackets are used to mount electrical appliances. This structure facilitates the installation of electrical appliances.

[0016] Preferably, the left and right beams, front and rear side beams are provided with a plurality of upper cover mounting holes, each of which is fitted with self-tapping screws. With this structure, the upper cover is mounted using self-tapping screws instead of traditional rivet nuts, effectively preventing poor airtightness of the box due to failure of the rivet nuts.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. The bottom plate adopts integrated extrusion to reduce the dimensional difference caused by stir welding deformation, avoid welding through the bottom plate during the subsequent welding of other parts, ensure the sealing of the internal circulating water channel of the bottom plate, and improve the safety performance of the battery box.

[0019] 2. The water holes are of a hole-shaped structure, and many supporting structures are formed between the water holes, which ensures that the base plate has better supporting strength and more welding area in the connection area, thereby ensuring the welding strength and airtightness of the area.

[0020] 3. The left beam and the right beam are integrally formed at the left and right ends of the main body. The front blocking plate and the rear blocking plate are blocked with the main body. The front side beam and the rear frame are welded with the left beam and the right beam to form a box structure. The structure is simple and easy to assemble.

[0021] 4. The sealing groove position is first sealed by argon arc welding, and then welded by stirring welding to improve the air tightness of the circulating water channel inside the bottom plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural diagram of the utility model;

[0023] Figure 2 Schematic diagram of the structure of the front frame 2;

[0024] Figure 3 Schematic diagram of the structure of the rear frame 3;

[0025] Figure 4 A schematic diagram showing the blocking groove 5;

[0026] Figure 5 A schematic diagram of the main channel c is shown here;

[0027] Figure 6 A schematic diagram showing the base plate 1;

[0028] Figure 7 A schematic diagram showing the water hole a1;

[0029] Figure 8 A schematic diagram showing the upper cover mounting hole 17;

[0030] Figure 9 Schematic diagram showing the mounting bracket 6. DETAILED DESCRIPTION

[0031] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0032] Example 1

[0033] like Figure 1As shown, a new energy power battery standard box is composed of a bottom plate 1, a front frame 2 and a rear frame 3, which are integrally formed. The bottom plate 1 has a rectangular main body 11 and a left beam 12 and a right beam 13 integrally formed on the left and right ends of the main body 11. Figure 2 As shown, the front frame 2 has a front blocking plate 21 and a front side beam 22 integrally formed on the upper side of the front blocking plate 21. Figure 3 As shown, the rear frame 3 has a rear blocking plate 31 and a rear side beam 32 integrally formed on the upper side of the rear blocking plate 31. A main channel c is provided inside the main body 11 along its length direction. The front blocking plate 21 of the front frame 2 is sealed and connected to the front end of the main channel c by welding. The rear blocking plate 31 of the rear frame 3 is sealed and connected to the rear end of the main channel c by welding. The front side beam 22, the left beam 12, the rear side beam 32 and the right beam 13 form a rectangular frame structure with a simple structure and easy installation. Compared with the traditional method of welding two bottom plates together on the left and right, the bottom plate 1 formed by integral extrusion has good flatness, the safety performance of the battery box is good, and the possibility of welding through the bottom plate 1 in the subsequent welding process is low.

[0034] like Figure 4 As shown, a V-shaped sealing groove 5 is provided at the connection between the front blocking plate 21 and the rear blocking plate 31 and the main body 11. The sealing groove 5 is first welded by argon arc welding and then welded by stirring welding, which can make the welding airtightness better.

[0035] like Figure 5 As shown, spacers c1 are distributed within the main channel c, some of which are sealed and connected to the front blocking plate 21, while others are sealed and connected to the rear blocking plate 31, forming a circulation channel in the main channel c. In this embodiment, a water inlet channel a and a water outlet channel b are provided at the left and right ends of the front blocking plate 21. One end of the circulation channel is connected to the water inlet channel a, and the other end is connected to the water outlet channel b. Cooling water is introduced from the water inlet channel a. Since the water inlet channel a and the water outlet channel b are located on the same side of the main body 11, the cooling water flows through the entire main body 11 through the circulation channel, then spreads throughout the main body 11, and is finally drawn out from the water outlet channel b. This provides a good cooling effect and can better ensure the performance of the battery.

[0036] like Figure 5 and Figure 7 As shown, the water inlet a and the water outlet b are rectangular hollow chambers. The rear end of the rectangular hollow chamber is distributed with a water hole a1, and the front end is connected to a circular nozzle 4 for drawing out and introducing cooling water. There is a support structure a2 between two adjacent water holes a1. Compared with the traditional single long rectangular water flow part, multiple support structures are formed between the hole-shaped structures, ensuring that the bottom plate 1 has better support strength and more welding area in the connecting area, thereby ensuring the welding strength and airtightness of the area. Figure 2As shown, a protrusion 211 extends from the rear end of the front blocking plate 21, and the protrusion 211 is inserted into the interior of the main body 11. The water hole a1 is set in the protrusion 211, and the mechanical structure is used to enhance the air tightness inside the main channel c.

[0037] like Figure 6 As shown, a first bevel A is provided at the end portion of the left side beam 12 and the right side beam 13 in the longitudinal direction, and an installation position is formed between the first bevel A of the left side beam 12 and the first bevel A of the right side beam 13. The front side beam 22 and the rear side beam 32 are respectively installed in the front and rear installation positions. A second bevel B is provided at the end portion of the front side beam 22 and the rear side beam 32 in the longitudinal direction, and the first bevel A and the second bevel B are welded in a butt connection to realize the connection between the front side beam 22 and the rear side beam 32 and the left side beam 12 and the right side beam 13. The structure is compact and the installation is convenient.

[0038] like Figure 1 and Figure 9 As shown, the upper surface of the main body 11 is welded with a front module beam 7 and a rear module beam 8. The front module beam 7 and the rear module beam 8 are also integrally formed and are used to mount the battery module. The front module beam 7 and the rear module beam 8 are parallel to the front side beam 22 and the rear side beam 32, and their ends are welded to the sides of the left beam 12 and the right beam 13, respectively. A mounting bracket 6 is also provided on the upper surface of the main body 11 between the front module beam 7 and the front side beam 22, and between the rear module beam 8 and the rear side beam 32. The mounting bracket 6 is used to mount electrical appliances. The ends of the mounting bracket 6 are welded to the mounting plate 11, and the middle portion is suspended and equipped with a rivet nut 61.

[0039] like Figure 1 and Figure 8 As shown, a plurality of upper cover mounting holes 17 are provided on the upper sides of the left beam 12, the right beam 13, the front side beam 22 and the rear side beam 32, and self-tapping screw sleeves 171 are assembled in the upper cover mounting holes 17. The use of self-tapping screw sleeves 171 instead of traditional rivet nuts can effectively avoid poor airtightness of the box body caused by failure of the rivet nuts.

[0040] Example 2

[0041] A method for manufacturing a new energy power battery standard box includes the following steps:

[0042] S1: The bottom plate 1, the front frame 2, the rear frame 3, the front module beam 7 and the rear module beam 8 are manufactured by an integrated extrusion molding process;

[0043] S2: Weld the front blocking plate 21 of the front frame 2 to the front end of the main channel c of the main body 11 by stirring welding, and weld the rear blocking plate 31 of the rear frame 3 to the rear end of the main channel c of the main body 11;

[0044] S3: Weld the first inclined surface A of the left side beam 12 and the right side beam 13 to the second inclined surface B of the front side beam 22 and the rear side beam 32;

[0045] S4: A sealing groove 5 is formed at the connection between the front blocking plate 21 and the rear blocking plate 31 and the main body 11. The sealing groove 5 is processed by CNC, and the sealing groove 5 is welded and sealed by argon arc welding, and then welded by stir welding;

[0046] S5: Weld the faucet 4 to the water inlet a and the water outlet b by argon arc welding, weld the front module beam 7, the rear module beam 8, the mounting bracket 6 to the main body 11 by argon arc welding, and assemble the rivet nut 61 on the mounting bracket 6;

[0047] S6: A plurality of upper cover mounting holes 17 are provided on the upper sides of the left beam 12 , the right beam 13 , the front side beam 22 and the rear side beam 32 , and self-tapping screw bushings 171 are installed in the upper cover mounting holes 17 .

[0048] Finally, it should be noted that the above description is only a preferred embodiment of the present invention. Under the guidance of the present invention, ordinary technicians in this field can make various similar expressions without violating the purpose and claims of the present invention. Such changes fall within the scope of protection of the present invention.

Claims

1. A new energy power battery standard box, characterized by: The invention comprises a bottom plate (1) and a front frame (2) and a rear frame (3) welded and assembled at the front and rear ends of the bottom plate (1); the bottom plate (1) comprises a main plate body (11) and a left beam (12) and a right beam (13) integrally formed at the left and right ends of the main plate body (11); the front frame (2) comprises a front blocking plate (21) and a front side beam (22) integrally formed at the upper side of the front blocking plate (21); the rear frame (3) comprises a rear blocking plate (31) and a rear side beam (32) integrally formed at the upper side of the rear blocking plate (31); a main channel (c) is provided inside the main plate body (11) and passes through the main plate body along its length direction; the front blocking plate (21) and the rear blocking plate (31) respectively block the front and rear ends of the main channel (c); a water inlet channel (a) and a water outlet channel (b) are provided at the left and right ends of the front blocking plate (21); the water inlet channel (a) and the water outlet channel (b) are both communicated with the main channel (c); The left side beam (12) and the right side beam (13) are both raised upward relative to the main body (11); the front side beam (22), the left side beam (12), the rear side beam (32) and the right side beam (13) form a rectangular frame structure.

2. The new energy power battery standard box according to claim 1, characterized in that: Spacers (c1) are distributed in the main channel (c), and each of the spacers (c1) enables the main channel (c) to form a circulation channel, one end of the circulation channel is connected to the water inlet channel (a), and the other end is connected to the water outlet channel (b).

3. The new energy power battery standard box according to claim 1, characterized in that: Sealing grooves (5) are provided at the connection points between the front blocking plate (21) and the rear blocking plate (31) and the main plate body (11), and the sealing grooves (5) are used for sealing welding.

4. The new energy power battery standard box according to claim 1, characterized in that: The left side beam (12) and the right side beam (13) are provided with a first inclined surface (A) at their ends in the length direction, and the front side beam (22) and the rear side beam (32) are provided with a second inclined surface (B) at their ends in the length direction, and the first inclined surface (A) and the second inclined surface (B) are welded in a facing direction.

5. The new energy power battery standard box according to claim 2, characterized in that: The water inlet channel (a) and the water outlet channel (b) are rectangular hollow chambers, a water hole (a1) is distributed at the rear end of the rectangular hollow chamber, a support structure (a2) is provided between two adjacent water holes (a1), and a water nozzle (4) is connected to the front end of the rectangular hollow chamber, and the water nozzle (4) is used to draw out and introduce cooling water.

6. The new energy power battery standard box according to claim 5, characterized in that: A protrusion (211) extends from the rear end of the front blocking plate (21), the protrusion (211) is inserted into the interior of the main plate body (11), and the water hole (a1) is arranged in the protrusion (211).

7. The new energy power battery standard box according to claim 2, characterized in that: A front module beam (7) and a rear module beam (8) for mounting a battery module are welded to the upper surface of the main board body (11).

8. The new energy power battery standard box according to claim 7, characterized in that: A plurality of mounting brackets (6) are provided on the upper surface of the main board (11) between the front module beam (7) and the front side beam (22), and between the rear module beam (8) and the rear side beam (32). Both ends of the plurality of mounting brackets (6) are welded to the main board (11), and a rivet nut (61) is installed in the middle. The mounting brackets (6) are used for mounting electrical appliances.

9. The new energy power battery standard box according to claim 1, characterized in that: A plurality of upper cover mounting holes (17) are provided on the upper sides of the left side beam (12), the right side beam (13), the front side beam (22) and the rear side beam (32), and self-tapping screw sleeves (171) are installed in the upper cover mounting holes (17).

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