Battery pack water nozzle replacing tool

Abstract

The utility model belongs to the technical field of disassembly and assembly of a water nozzle of a battery pack, and discloses a tool for replacing the water nozzle of the battery pack. The battery pack water nozzle replacing tool comprises a bottom frame, a connecting assembly, a lead screw nut and a clamping part, the connecting assembly is arranged on the bottom frame and used for being fixedly connected with a box body of a battery pack, the lead screw nut is fixed to the bottom frame, a lead screw is connected into the lead screw nut in a threaded mode, and the clamping part is rotationally connected with the axial end of the lead screw; the clamping part comprises an upper clamping plate and a lower clamping plate which are detachably connected, and a water nozzle is clamped and fixed between the upper clamping plate and the lower clamping plate. According to the battery pack water nozzle replacement tool, the water nozzle can be conveniently replaced, the disassembly and assembly difficulty of the water nozzle is reduced, and the maintenance cost is saved.

Description

Technical Field

[0001] This utility model relates to the field of battery pack water tap disassembly and assembly technology, and in particular to a tooling for replacing battery pack water taps. Background Technology

[0002] To achieve the desired heat dissipation performance of the battery pack, a liquid cooling plate is usually installed at the bottom of the battery pack casing. The water nozzles of the liquid cooling plate are fixed by riveting them to the water nozzle riveting interface on the casing. During installation, a hammer is used to tap the nozzles to achieve complete assembly. Finally, sealant is applied to the joint between the water nozzles and the bottom of the casing to achieve the final IP67 airtightness requirement.

[0003] Since the liquid cooling water nozzle is fully assembled by hammering, it is difficult to disassemble when it needs to be repaired due to damage, leakage or other abnormalities. Therefore, the repair is difficult and the more common solution is to directly replace the cabinet, which is quite wasteful of costs.

[0004] Therefore, there is an urgent need to provide a tooling for replacing the water nozzle of a battery pack to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a tooling for replacing the water nozzle of a battery pack, which can facilitate the replacement of the water nozzle, reduce the difficulty of disassembling and assembling the water nozzle, and save maintenance costs.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] Battery pack water nozzle replacement fixture, including:

[0008] Base frame;

[0009] A connecting component, which is mounted on the base frame and used for fixed connection with the battery pack housing;

[0010] A lead screw nut, which is fixed to the base frame;

[0011] A lead screw, which is threaded into the lead screw nut;

[0012] The clamping part is rotatably connected to one axial end of the lead screw. The clamping part includes an upper clamping plate and a lower clamping plate that are detachably connected. The upper clamping plate and the lower clamping plate are used to clamp and fix the water nozzle.

[0013] As an optional solution, the upper clamping plate is provided with a first limiting groove, and the lower clamping plate is provided with a second limiting groove. The first limiting groove and the second limiting groove are opposite to each other and form a limiting hole with a shape that matches the water nozzle. The water nozzle can be accommodated in the limiting hole.

[0014] As an optional solution, the threads on both the lead screw and the lead screw nut are trapezoidal threads.

[0015] As an alternative, a handle is provided at the end of the lead screw away from the clamping part.

[0016] As an optional solution, the base frame is provided with a guide hole, and the bottom of the clamping part is formed with a guide protrusion, which slides in conjunction with the guide hole.

[0017] As an optional solution, the clamping part further includes a bearing housing and a bearing disposed in the bearing housing, one side of the bearing housing is connected to the lower clamping plate, and one axial end of the lead screw is inserted into the bearing.

[0018] As an optional solution, the bearing housing and the lead screw nut are spaced apart in the axial direction of the lead screw.

[0019] As an optional embodiment, the connection component includes a first connection part, the first connection part comprising:

[0020] The first connecting block is fixedly connected to the base frame and has a limiting protrusion. The limiting protrusion has a first connecting hole. The wide side of the box is provided with a hanging ear, which is fitted onto the limiting protrusion.

[0021] The first fastener is inserted into the first connecting hole, and the head of the first fastener can abut against the lug.

[0022] As an optional embodiment, the connecting assembly further includes a second connecting component, which is disposed on both sides of the clamping portion, and the second connecting component includes:

[0023] The second connecting block is fixedly connected to the base frame and has a second connecting hole. The extension direction of the second connecting hole is parallel to the axis of the lead screw. A lifting lug is provided at one end of the long side of the housing. A lifting hole is provided on the lifting lug. The second connecting hole is directly opposite the lifting hole.

[0024] The second fastener has one end passing through the lifting hole and the second connecting hole in sequence, and is connected to the locking member, which can abut against the second connecting block.

[0025] As an alternative, the second connecting hole is an oblong hole.

[0026] The beneficial effects of this utility model are:

[0027] This utility model provides a battery pack water nozzle replacement fixture. In use, the upper clamping plate is first removed, the water nozzle is placed in the corresponding position on the lower clamping plate, and then the upper clamping plate is installed on the lower clamping plate to clamp and fix the water nozzle. After the water nozzle is placed, the connecting assembly is fixedly connected to the battery pack housing to fix the fixture. By rotating the lead screw in the forward direction, the lead screw drives the clamping part to move away from the housing, and the clamping part drives the water nozzle to be pulled out from the rivet hole, thereby realizing the removal of the water nozzle. By rotating the lead screw in the reverse direction, the lead screw drives the clamping part to move closer to the housing, and the clamping part drives the new water nozzle to be inserted into the rivet hole, thereby realizing the installation of the new water nozzle. Therefore, the battery pack water nozzle replacement fixture provided by this utility model can facilitate water nozzle replacement, reduce the difficulty of water nozzle disassembly and assembly, save maintenance costs, and the fixture has a simple overall structure, low manufacturing cost, and high feasibility. It can change the existing hammering installation method from a state where the installation effect cannot be guaranteed to a state where the installation accuracy can be guaranteed, so that the installation position of each water nozzle is basically consistent, and the liquid cooling pipe at the bottom of the tank will not be damaged during disassembly. Attached Figure Description

[0028] Figure 1 This is a top view of the battery pack water nozzle replacement tool and the housing provided in this embodiment of the utility model.

[0029] Figure 2 This is a schematic diagram of the first structure of the battery pack water nozzle replacement fixture provided in this embodiment of the utility model;

[0030] Figure 3 This is a schematic diagram of the second structure of the battery pack water nozzle replacement fixture provided in this embodiment of the utility model;

[0031] Figure 4 This is a schematic diagram of the third structure of the battery pack water nozzle replacement fixture provided in this embodiment of the utility model.

[0032] In the picture:

[0033] 10. Cabinet; 101. Hanging lug; 102. Lifting lug; 20. Water tap;

[0034] 1. Base frame; 11. Guide holes;

[0035] 2. Connecting assembly; 21. First connecting component; 211. First connecting block; 2111. Limiting protrusion; 2112. First connecting hole; 212. First fastener; 22. Second connecting component; 221. Second connecting block; 2211. Second connecting hole; 222. Second fastener; 223. Locking component;

[0036] 3. Lead screw and nut; 4. Lead screw;

[0037] 5. Clamping part; 51. Upper clamping plate; 511. First limiting groove; 52. Lower clamping plate; 521. Second limiting groove; 53. Limiting hole; 54. Bearing seat; 541. Guide protrusion; 55. Bearing; 56. Third fastener; 6. Handle. Detailed Implementation

[0038] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0039] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0040] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0041] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0042] like Figure 1As shown, this embodiment provides a battery pack water nozzle replacement fixture, which is used in conjunction with the battery pack housing 10 to disassemble and replace the water nozzle 20 riveted to the housing 10. The housing 10 has a rectangular cross-section, consisting of two opposite wide sides and two opposite long sides. The water nozzle 20 is usually riveted to one of the wide sides, and the water nozzle 20 is a bent pipe.

[0043] Specifically, in combination Figure 1 and Figure 2 The battery pack water nozzle replacement fixture includes a base frame 1, a connecting component 2, a lead screw nut 3, a lead screw 4, and a clamping part 5. The base frame 1 has a T-shaped structure. The connecting component 2 is set on the base frame 1 and is used to fix it to the battery pack housing 10. The lead screw nut 3 is fixed on the base frame 1. The lead screw 4 is threaded into the lead screw nut 3. The clamping part 5 is rotatably connected to one axial end of the lead screw 4. The clamping part 5 includes a detachably connected upper clamping plate 51 and a lower clamping plate 52. The upper clamping plate 51 and the lower clamping plate 52 are used to clamp and fix the water nozzle 20.

[0044] In use, first remove the upper clamping plate 51, place the water nozzle 20 in the corresponding position on the lower clamping plate 52, and then install the upper clamping plate 51 on the lower clamping plate 52 to clamp and fix the water nozzle 20. After the water nozzle 20 is placed, fix the connecting assembly 2 to the battery pack housing 10 to fix the tooling. By rotating the lead screw 4 in the forward direction, the lead screw 4 drives the clamping part 5 to move away from the housing 10, and the clamping part 5 drives the water nozzle 20 to be pulled out from the rivet hole, thereby realizing the disassembly of the water nozzle 20. By rotating the lead screw 4 in the reverse direction, the lead screw 4 drives the clamping part 5 to move closer to the housing 10, and the clamping part 5 drives the new water nozzle 20 to be inserted into the rivet hole, thereby realizing the installation of the new water nozzle 20. It should be noted that after the old water tap 20 is disassembled, the rivet hole will be slightly larger, making it easier to install the new water tap 20. After installation, simply seal the water tap 20 with glue along the edge of the rivet hole. The water tap 20 will not be damaged during the entire process.

[0045] Therefore, the battery pack water nozzle replacement fixture provided in this embodiment can facilitate the replacement of water nozzle 20, reduce the difficulty of disassembling and assembling water nozzle 20, save maintenance costs, and the fixture has a simple overall structure, low manufacturing cost, and high feasibility. It can change the existing hammering installation method from a state where the installation effect cannot be guaranteed to a state where the installation accuracy can be guaranteed, so that the installation position of each water nozzle 20 is basically consistent, and the liquid cooling pipe at the bottom of the tank will not be damaged during disassembly.

[0046] like Figure 2As shown, the upper clamping plate 51 and the lower clamping plate 52 are detachably connected by a third fastener 56. In this embodiment, the third fastener 56 can be a knurled bolt. The knurled bolt passes through the upper clamping plate 51 and connects to the threaded hole on the lower clamping plate 52, achieving a stable connection between the upper clamping plate 51 and the lower clamping plate 52, and facilitating easy assembly and disassembly. The knurled bolt allows for easy hand-tightening, and the straight knurling on the head increases friction, making hand-tightening more efficient. Of course, in other embodiments, the third fastener 56 can also be a hexagonal bolt, which can be tightened with a wrench.

[0047] Furthermore, such as Figure 2 As shown, the upper clamping plate 51 has a first limiting groove 511, and the lower clamping plate 52 has a second limiting groove 521. The first limiting groove 511 and the second limiting groove 521 are opposite each other and form a limiting hole 53 whose shape is adapted to the water nozzle 20. The water nozzle 20 can be accommodated in the limiting hole 53. The water nozzle 20 is first placed in the second limiting groove 521 of the lower clamping plate 52, and then the upper clamping plate 51 is fastened to the lower clamping plate 52. The first limiting groove 511 and the second limiting groove 521 form a complete limiting hole 53. The water nozzle 20 is accommodated in the limiting hole 53, which realizes the limiting and fixing of the water nozzle 20, so that the clamping part 5 can drive the water nozzle 20 to move without damaging the water nozzle 20.

[0048] Optionally, the threads on both the lead screw 4 and the lead screw nut 3 are trapezoidal threads. Trapezoidal threads have a larger contact area, reducing the risk of localized wear and breakage, and have good wear resistance. Using a trapezoidal thread structure for screwing in and out can enhance the tensile strength of the tooling and ensure its ability to operate repeatedly during repeated push-pull operations.

[0049] like Figure 2 As shown, a handle 6 is provided at the end of the lead screw 4 away from the clamping part 5. The operator can drive the lead screw 4 to rotate through the handle 6, which is convenient to operate and easy to apply force, so as to save time and effort.

[0050] Furthermore, such as Figure 3 As shown, a guide hole 11 is provided on the base frame 1, and a guide protrusion 541 is formed at the bottom of the clamping part 5. The guide protrusion 541 slides in conjunction with the guide hole 11. When the clamping part 5 moves relative to the base frame 1, the guide protrusion 541 at the bottom of the clamping part 5 slides along the guide hole 11 to ensure that the feed direction will not be misaligned during the assembly and disassembly process.

[0051] Furthermore, such as Figure 2As shown, the clamping part 5 also includes a bearing seat 54 and a bearing 55 disposed within the bearing seat 54. The aforementioned guide protrusion 541 is disposed at the bottom of the bearing seat 54. One side of the bearing seat 54 is connected to the lower clamping plate 52, and one axial end of the lead screw 4 is inserted into the bearing 55. With this configuration, when the lead screw 4 rotates, due to the supporting effect of the bearing 55, the lead screw 4 can rotate smoothly relative to the bearing seat 54, and the lead screw 4 can drive the lower clamping plate 52 and the upper clamping plate 51 to move through the bearing seat 54.

[0052] Among them, reference Figure 2 The bearing housing 54 and the lower clamping plate 52 are connected by a T-shaped protrusion and a T-slot. Specifically, the bearing housing 54 has a T-shaped protrusion on the side facing the lower clamping plate 52, and the lower clamping plate 52 has a T-slot on the side facing the bearing housing 54. The T-shaped protrusion is inserted into the T-slot, thus achieving the connection between the bearing housing 54 and the lower clamping plate 52. This connection is convenient for assembly and easy replacement of individual components. Along the axial direction of the lead screw 4, the bearing housing 54 and the lower clamping plate 52 are fixedly connected. The bearing housing 54 can drive the lower clamping plate 52 to move together. In the horizontal plane, perpendicular to the axis of the lead screw 4, the bearing housing 54 and the lower clamping plate 52 are movably connected. This allows for a left-right movement margin depending on the actual installation position of the water nozzle 20, preventing the water nozzle 20 from being installed crookedly.

[0053] like Figure 2 As shown, the bearing housing 54 and the lead screw nut 3 are spaced apart along the axial direction of the lead screw 4. This arrangement allows for a hollow design between the bearing housing 54 and the lead screw nut 3, which helps reduce the weight of the tooling, facilitates portability, and further reduces manufacturing costs.

[0054] like Figure 2 As shown, the connecting component 2 includes a first connecting component 21 and a second connecting component 22. The second connecting component 22 and the first connecting component 21 are respectively disposed on both sides of the clamping part 5 and are simultaneously connected to the housing 10. The direction of the line connecting the first connecting component 21 and the second connecting component 22 is perpendicular to the axis of the lead screw 4.

[0055] Specifically, in combination Figure 1 and Figure 2 The first connecting component 21 includes a first connecting block 211 and a first fastener 212. The first connecting block 211 is fixedly connected to the base frame 1 and is provided with a limiting protrusion 2111. The limiting protrusion 2111 is provided with a first connecting hole 2112. The wide side of the housing 10 is provided with a hanging ear 101. The hanging ear 101 is used for adjusting the position of the battery pack and for carrying it. The hanging ear 101 is fitted outside the limiting protrusion 2111. The first fastener 212 passes through the first connecting hole 2112. The head of the first fastener 212 can abut against the hanging ear 101 and play a limiting role for the hanging ear 101, thereby realizing the fixed connection between the first connecting component 21 and the hanging ear 101 of the housing 10.

[0056] In this embodiment, the first fastener 212 can be a knurled bolt, and the first connecting hole 2112 is a threaded hole. The knurled bolt is threaded into the first connecting hole 2112, providing a secure connection and easy assembly / disassembly. The knurled bolt facilitates hand-tightening, and the straight knurling on the head increases friction, making hand-tightening more efficient. Of course, in other embodiments, the first fastener 212 can also be a hexagonal bolt, which can be tightened with a wrench.

[0057] Specifically, in combination Figure 1 and Figure 4 The second connecting component 22 includes a second connecting block 221, a second fastener 222, and a locking member 223. The second connecting block 221 is fixedly connected to the base frame 1 and has a second connecting hole 2211. The extension direction of the second connecting hole 2211 is parallel to the axis of the lead screw 4. A lifting lug 102 is provided at one end of the long side of the housing 10. A lifting hole is provided on the lifting lug 102. The lifting hole is mainly used for lifting the battery pack. The second connecting hole 2211 is directly opposite to the lifting hole. One end of the second fastener 222 passes through the lifting hole and the second connecting hole 2211 in sequence and is connected to the locking member 223. The locking member 223 can abut against the second connecting block 221, thereby realizing the fixed connection between the second connecting component 22 and the lifting lug 102 of the housing 10.

[0058] In this embodiment, the second fastener 222 can be a knurled bolt, the second connecting hole 2211 is a smooth hole, and the locking member 223 is a knurled nut. The knurled bolt passes through the lifting hole and the second connecting hole 2211 in sequence and is threadedly connected to the knurled nut. The head of the knurled bolt abuts against the lifting lug 102, and the knurled nut abuts against the second connecting block 221, thereby achieving a stable connection between the second connecting block 221 and the lifting lug 102, and facilitating easy assembly and disassembly. The knurled bolt and knurled nut are easy to tighten by hand, and the straight knurling on the head increases friction, making hand tightening more efficient. Of course, in other embodiments, the second fastener 222 can also be a hexagonal bolt, and the locking member 223 can also be a hexagonal nut, which can be tightened with a wrench.

[0059] The above setup utilizes the hanging lugs 101 and lifting lugs 102 at the bottom of the housing 10, and designs a first connecting component 21 and a second connecting component 22 on the tooling to achieve precise alignment of the tooling, thereby meeting the installation accuracy of the water tap 20.

[0060] like Figure 4 As shown, the second connecting hole 2211 is an oblong hole. By setting the oblong hole, the tooling gains a horizontal fine-tuning function, avoiding the problem of misalignment between the second connecting hole 2211 and the lifting hole due to machining errors.

[0061] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A battery pack water nozzle replacement tool characterized by, The utility model relates to a kind of water nozzle fixing device, including: Chassis (1); Connecting assembly (2), the connecting assembly (2) is provided on the chassis (1) and is used to be fixedly connected with the box (10) of battery pack; Lead screw nut (3), the lead screw nut (3) is fixed on the chassis (1); Lead screw (4), the lead screw (4) is threadedly connected in the lead screw nut (3); Clamping portion (5), with the axial end of the lead screw (4) rotationally connected, the clamping portion (5) includes detachably connected upper clamping plate (51) and lower clamping plate (52), the upper clamping plate (51) and the lower clamping plate (52) are used for clamping fixed water nozzle (20) between.

2. The battery pack spout replacement tool of claim 1, wherein, First limiting slot (511) is opened on the upper clamping plate (51), second limiting slot (521) is opened on the lower clamping plate (52), the first limiting slot (511) and the second limiting slot (521) are opposite and form the limiting hole (53) of shape and the water nozzle (20) are adapted, the water nozzle (20) can be contained in the limiting hole (53).

3. The battery pack spout replacement tool of claim 1, wherein, The thread on the lead screw (4) and the lead screw nut (3) is trapezoidal thread.

4. The battery pack spout replacement tool of claim 1, wherein, Handle (6) is provided on the end of the lead screw (4) away from the clamping portion (5).

5. The battery pack spout replacement tool of claim 1, wherein, Guide hole (11) is opened on the chassis (1), and the bottom of the clamping portion (5) forms guide protrusion (541), and the guide protrusion (541) is slidably matched with the guide hole (11).

6. The battery pack spout replacement tool of claim 1, wherein, The clamping portion (5) further includes bearing seat (54) and bearing (55) provided in the bearing seat (54), one side of the bearing seat (54) is connected with the lower clamping plate (52), and the axial end of the lead screw (4) is inserted into the bearing (55).

7. The battery pack spout replacement tool of claim 6, wherein, The bearing seat (54) and the lead screw nut (3) are arranged at intervals in the axial direction of the lead screw (4).

8. The battery pack spout replacement tool of claim 1, wherein, The connecting assembly (2) includes first connecting component (21), and the first connecting component (21) includes: First connecting block (211), fixedly connected on the chassis (1) and provided with limiting protrusion (2111), first connecting hole (2112) is opened on the limiting protrusion (2111), and the wide side of the box (10) is provided with lug (101), and the lug (101) is sleeved outside the limiting protrusion (2111); First fastener (212) is penetrated in the first connecting hole (2112), and the head of the first fastener (212) can abut against the lug (101).

9. The battery pack spout replacement tool of claim 8, wherein, The connecting assembly (2) further includes second connecting component (22), and the second connecting component (22) is arranged on both sides of the clamping portion (5) separately from the first connecting component (21), and the second connecting component (22) includes: A second connecting block (221) is fixedly connected to the bottom frame (1) and has a second connecting hole (2211) formed therein, the extending direction of the second connecting hole (2211) is parallel to the axial direction of the lead screw (4), one end of the box body (10) is provided with an ear (102), a lifting hole is formed in the ear (102), the second connecting hole (2211) is opposite to the lifting hole; A second fastener (222) is arranged, one end of the second fastener (222) is sequentially arranged through the lifting hole and the second connecting hole (2211), and is connected with a locking piece (223), the locking piece (223) can abut against the second connecting block (221).

10. The battery pack spout replacement tool of claim 9, wherein, The second connecting hole (2211) is a waist-shaped hole.

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