Welding jig for new energy battery pack

Abstract

The welding jig of the new energy battery pack comprises a box body and a plurality of battery packs arranged in the box body, the box body comprises a hollow frame, a plurality of lower fixing plates and a plurality of upper fixing plates, the lower fixing plates are sequentially laid at the bottom of the frame, the upper fixing plates are sequentially arranged at the top of the frame, and the upper fixing plates are adjustably matched with the end face of the top of the frame. The lower fixing plate is adjustably matched with the bottom end face of the frame. The upper fixing plate, the lower fixing plate and the battery pack are correspondingly arranged, and the battery pack comprises a lower fixing frame, an upper fixing frame and a battery arranged between the upper fixing frame and the lower fixing frame. The welding jig is stable and reliable in the production process, easy to operate and easy to implement; the second kidney-shaped hole is formed in the upper fixing plate of the box body, the first kidney-shaped hole is formed in the lower fixing plate of the box body, the box body and the battery pack are in adjustable threaded connection fit, left-right moving adjustment and fixation can be conducted according to the actual specification of the battery pack, and accumulated errors in the machining process are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of welding jigs, and specifically relates to a welding jig for a new energy battery pack. Background Art

[0002] With the continuous development of new energy, battery energy storage has become the key in various industries. In order to make the battery have a higher capacity, as many batteries as possible are usually placed in the battery pack, which leads to a larger battery pack size. Since the injection molding process is prone to mold sticking for products with many holes and thin walls, and deformation and instability during production, the fixed bracket can only be assembled by splicing many small unit brackets into a fixed bracket assembly (such as Figure 6 However, because of this, the small unit brackets will have large cumulative errors after being assembled, and there will be certain errors between production batches, which will lead to the inability to weld in the subsequent welding process. Utility Model Content

[0003] In order to make up for the deficiencies of the prior art, the utility model aims to provide a welding jig for a new energy battery pack to solve the problem that in the existing battery pack welding process, multiple or various parts and components cannot be assembled due to cumulative or batch errors, which affects the subsequent welding process.

[0004] The welding jig of a new energy battery pack comprises a box body and a plurality of battery packs arranged in the box body, wherein the box body comprises a hollow frame, a plurality of lower fixing plates sequentially laid on the bottom of the frame and a plurality of upper fixing plates sequentially arranged on the top of the frame, wherein the upper fixing plate is adjustable to fit with the top end surface of the frame, and the lower fixing plate is adjustable to fit with the bottom end surface of the frame; the upper fixing plate and the lower fixing plate are arranged correspondingly to the battery pack, and the battery pack comprises a lower fixing frame, an upper fixing frame and a battery arranged between the upper fixing frame and the lower fixing frame.

[0005] Furthermore, the frame includes a group of long frames and a group of short frames that are arranged relatively to each other, a plurality of baffles are arranged at intervals on the upper end surfaces of the long frames, and a plurality of baffles are also arranged at corresponding positions of the short frames.

[0006] Furthermore, the adjacent ends of the two adjacent upper fixing plates and the lower fixing plates are both provided with grooves, which are respectively engaged with the baffles on the upper and lower end surfaces of the long frame.

[0007] Furthermore, a plurality of first waist-shaped holes are provided on the lower fixing plate, which are screwed together with the lower fastening holes on the lower end surface of the long frame.

[0008] Furthermore, a plurality of second waist-shaped holes are provided on the upper fixing plate and are screwed to cooperate with the upper fastening holes on the upper end surface of the long frame.

[0009] Furthermore, the lower fixing plate and the bottom end surface of the frame are provided with magnets that attract each other, and the upper fixing plate and the top end surface of the frame are also provided with magnets that attract each other.

[0010] Furthermore, the lower fixing frame and the upper fixing frame have the same structure, the same number and are arranged correspondingly. The lower fixing frame and the upper fixing frame are both provided with a first hole groove, which is respectively clamped with the bottom and top of the battery; the upper fixing plate and the lower fixing plate are provided with a second hole groove corresponding to the first hole groove, which is respectively clamped with the bottom and top of the battery.

[0011] Furthermore, a plurality of clamping blocks are arranged on one side of the lower fixing frame, and a plurality of clamping slots are correspondingly arranged on the other side, and adjacent lower fixing frames are connected to each other through the clamping of the clamping blocks and the clamping slots.

[0012] Furthermore, the clamping block is a T-shaped block structure, and the clamping slot is a T-shaped slot that matches the clamping block.

[0013] Compared with the prior art, the utility model has the following advantages: the welding jig of the application is stable and reliable during the production process, simple to operate, and easy to implement; by arranging a second waist-shaped hole on the upper fixed plate of the box body and a first waist-shaped hole on the lower fixed plate to cooperate with the adjustable screw connection of the battery pack, it can be adjusted and fixed left and right according to the actual specifications of the battery pack, thereby reducing the cumulative error during the processing process; magnets that are attracted to the frame are arranged on the upper fixed plate and the lower fixed plate, which can prevent the fixed plate from falling off during welding or transportation. The magnet can prevent the upper fixed plate or the lower fixed plate from falling off from the frame, and at the same time does not affect the left and right movement adjustment of the upper fixed plate and the lower fixed plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the welding fixture of the utility model;

[0015] Figure 2 This is the internal structure diagram of the welding fixture of the utility model;

[0016] Figure 3 This is a separation structure diagram of the box body of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the upper fixing frame / lower fixing frame of the utility model;

[0018] Figure 5 This is a diagram of the assembly steps of the welding jig of the utility model;

[0019] Figure 6 It is a schematic diagram of the existing structure in the background technology of the utility model.

[0020] In the figure: 1-box body, 11-frame, 111-long frame 1, 112-short frame, 113-baffle, 114-groove, 12-lower fixing plate, 13-upper fixing plate, 2-battery pack, 21-lower fixing frame, 22-upper fixing frame, 23-battery, 3-magnet, 4-first waist-shaped hole, 5-second waist-shaped hole, 6-first hole slot, 7-second hole slot, 8-card block, 9-card slot. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to more clearly understand the technical solution of the present application, the present invention is further described below in conjunction with the accompanying drawings.

[0022] like Figure 1-Figure 4 As shown, a welding fixture for a new energy battery pack includes a box body 1 and a plurality of battery packs 2 arranged in the box body 1, the box body 1 includes a hollow frame 11, a plurality of lower fixing plates 12 sequentially laid on the bottom of the frame 11 and a plurality of upper fixing plates 13 sequentially arranged on the top of the frame 11, the upper fixing plates 13 and the lower fixing plates 12 are consistent in number with the battery pack 2 and are arranged correspondingly, the upper fixing plate 13 is adjustable to match with the top end surface of the frame 11, and the lower fixing plate 12 is adjustable to match with the bottom end surface of the frame 11; the battery pack 2 includes a lower fixing frame 21, an upper fixing frame 22 and a plurality of batteries 23 arranged between the upper fixing frame 22 and the lower fixing frame 21; the lower fixing frame 21 and the upper fixing frame 22 have the same structure, the same number and are arranged correspondingly, the lower fixing frame 21 and the upper fixing frame 22 are both provided with a first hole groove 6, which is respectively engaged with the bottom and top of the battery 23; the upper fixing plate 13 and the lower fixing plate 12 are provided with a second hole groove 7 corresponding to the first hole groove 6, which is respectively engaged with the bottom and top of the battery 23. In addition, a plurality of clamping blocks 8 are provided on one side of the lower fixing frame 21 (the same is true for the upper fixing frame 22), and a plurality of clamping slots 9 are correspondingly provided on the other side, and the adjacent lower fixing frames 21 are connected to each other through the clamping of the clamping blocks 8 and the clamping slots 9. In order to make the clamping more firm, the clamping blocks 8 are designed as T-shaped block structures in the present application, and the clamping slots 9 are T-shaped slots that cooperate with the clamping blocks 8.

[0023] Specifically, the frame 11 includes a group of long frames 111 and a group of short frames 112 arranged opposite to each other, a plurality of baffles 113 are arranged at intervals on the upper end surface of the long frame 111, and a plurality of baffles 113 are also arranged at the corresponding position of the short frame 112; the adjacent ends of the two adjacent upper fixing plates 13 and the lower fixing plates 12 are both provided with grooves 114, which are respectively engaged with the baffles 113 on the upper and lower end surfaces of the long frame 111. The lower fixing plate 12 is provided with a plurality of first waist-shaped holes 4, which are screwed with the lower fastening hole baffle on the lower end surface of the long frame 111; the upper fixing plate 13 is provided with a plurality of second waist-shaped holes 5, which are screwed with the upper fastening hole on the upper end surface of the long frame 111. It is mentioned in the background technology that since the battery pack fixing frame is composed of several parts spliced ​​together, there is a great risk that the battery fixing frame cannot be installed in the welding fixture due to the increased cumulative error. According to the actual specifications of the battery pack 2, the present application sets a second waist-shaped hole 5 on the upper fixing plate 13 and a first waist-shaped hole 4 on the lower fixing plate 12, which are adjustable and screwed together with the frame 11, so that the upper fixing plate 13 and the lower fixing plate 12 can be moved left and right and adjustably fixed to the frame 11, thereby reducing the cumulative error during the processing.

[0024] In addition, in order to prevent the upper fixing plate 13 and the lower fixing plate 12 from falling off during welding or transportation, magnets 3 that attract each other are set on the top end surfaces of the upper fixing plate 13 and the frame 11, and magnets 3 that attract each other are set on the bottom end surfaces of the lower fixing plate 12 and the frame 11. The magnets can prevent the upper fixing plate 13 or the lower fixing plate 12 from falling off the frame 11, and at the same time do not affect the left and right movement adjustment of the upper fixing plate 13 and the lower fixing plate 12. Example 1

[0025] Continue reading Figure 1-Figure 4 It can be seen that in this embodiment, the welding fixture of the new energy battery pack includes a box body 1 and five groups of battery packs 2 (i.e., five lower fixing frames 21 and five upper fixing frames 22) arranged in the box body 1, and the box body 1 includes a frame 11 and five upper fixing plates 13 and five lower fixing plates 12, which correspond to the five upper fixing frames 22 and the five lower fixing frames 21 respectively.

[0026] like Figure 5 As shown, the assembly steps of the welding fixture in this embodiment are as follows:

[0027] (1) Assemble the five lower fixing plates 12 and the frame 11;

[0028] (2) Place the lower fixing frames 21 one by one onto the lower fixing plate 12 in the frame 11;

[0029] (3) Install the batteries 23 one by one into the lower fixing frame 21;

[0030] (4) Place the upper fixing frame 22 into the frame 11 in sequence and fit it into the battery 23;

[0031] (5) Install the five upper fixing plates 13 into the frame 11 and match them with the upper fixing frame 22 (engage with the top of the battery 23);

[0032] (6) Start welding.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A welding fixture for a new energy battery pack, characterized in that: The invention comprises a box body (1) and a plurality of battery packs (2) arranged in the box body (1), wherein the box body (1) comprises a hollow frame (11), a plurality of lower fixing plates (12) sequentially laid on the bottom of the frame (11), and a plurality of upper fixing plates (13) sequentially arranged on the top of the frame (11), wherein the upper fixing plates (13) are adjustable to match with the top end surface of the frame (11), and the lower fixing plates (12) are adjustable to match with the bottom end surface of the frame (11); the upper fixing plates (13) and the lower fixing plates (12) are arranged correspondingly to the battery pack (2), and the battery pack (2) comprises a lower fixing frame (21), an upper fixing frame (22), and a battery (23) arranged between the upper fixing frame (22) and the lower fixing frame (21).

2. A welding fixture for a new energy battery pack according to claim 1, characterized in that: The frame (11) comprises a group of long frames (111) and a group of short frames (112) arranged relatively to each other, a plurality of baffles (113) being arranged at intervals on the upper end surfaces of the long frames (111), and a plurality of baffles (113) being arranged at corresponding positions of the short frames (112).

3. A welding fixture for a new energy battery pack according to claim 2, characterized in that: The adjacent ends of the two adjacent upper fixing plates (13) and the lower fixing plates (12) are both provided with grooves (114) which are respectively engaged with the baffles (113) on the upper and lower end surfaces of the long frame (111).

4. A welding jig for a new energy battery pack according to claim 3, characterized in that: The lower fixing plate (12) is provided with a plurality of first waist-shaped holes (4) which are screwed to the lower fastening holes on the lower end surface of the long frame (111).

5. A welding jig for a new energy battery pack according to claim 4, characterized in that: The upper fixing plate (13) is provided with a plurality of second waist-shaped holes (5) which are screw-connected with the upper fastening holes on the upper end surface of the long frame (111).

6. A welding jig for a new energy battery pack according to any one of claims 1 to 5, characterized in that: The lower fixing plate (12) and the bottom end surface of the frame (11) are provided with magnets (3) that attract each other, and the upper fixing plate (13) and the top end surface of the frame (11) are also provided with magnets (3) that attract each other.

7. A welding jig for a new energy battery pack according to any one of claims 1 to 5, characterized in that: The lower fixing frame (21) and the upper fixing frame (22) have the same structure, the same number and are arranged correspondingly. The lower fixing frame (21) and the upper fixing frame (22) are both provided with a first hole groove (6) which is respectively engaged with the bottom and the top of the battery (23); the upper fixing plate (13) and the lower fixing plate (12) are provided with a second hole groove (7) corresponding to the first hole groove (6) which is respectively engaged with the bottom and the top of the battery (23).

8. A welding fixture for a new energy battery pack according to claim 7, characterized in that: A plurality of clamping blocks (8) are arranged on one side of the lower fixing frame (21), and a plurality of clamping slots (9) are correspondingly arranged on the other side. Adjacent lower fixing frames (21) are connected to each other through the clamping of the clamping blocks (8) and the clamping slots (9).

9. A welding jig for a new energy battery pack according to claim 8, characterized in that: The clamping block (8) is a T-shaped block structure, and the clamping slot (9) is a T-shaped slot that matches the clamping block (8).

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