Lightweight riveted structure metro storage battery box

Abstract

The utility model discloses a metro storage battery box with a lightweight riveted structure. The metro storage battery box comprises an outer box, an electric control box, a BMS box, a suspension arm, an inner box and an outer box door plate, the outer box comprises an outer box framework and a skin, and the skin does not need puttying and is riveted to the outer box framework. Inner boxes are telescopically mounted on the left side and the right side of the outer box through suspension arms; the outer box door plate is riveted with the outer box; the surface of the outer box is in bolted connection with an electric control box and a BMS box; the electric control box, the BMS box, the outer box door plate and the skin are made of aluminum alloy. According to the utility model, the structure is optimized on the basis of the existing structure, the purpose of reducing the weight of the whole battery box is achieved, the cost is saved, the strength and the service life of the battery box with the original structure are not influenced, and the daily maintenance work of an operator on the battery box is more convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of rail transit vehicles, and particularly relates to a lightweight riveted structure subway battery box. Background Art

[0002] With the continuous development of urban transportation, subway vehicles, as an important part of urban rail transit, people pay more and more attention to their safety.

[0003] The power source for emergency ventilation and lighting of subway vehicles comes from the battery box, and the battery box provides emergency power for the vehicle when an emergency occurs.

[0004] The battery box is suspended on the side beam of the vehicle underframe and is connected by bolts. The total weight of the battery box due to the weight of the box body and the battery is about 1.3 tons. The battery box is one of the heaviest external connected devices on the vehicle underframe. When the vehicle is running, especially when the road conditions are poor, the vibration and impact loads borne by the vehicle underframe and the battery box are relatively large. To meet the requirements of lightweight of modern subway vehicles, based on the original unified structure battery box, by optimizing the structure, it is of great significance to reduce the weight of the battery box. Summary of the Invention

[0005] The purpose of the utility model is to provide a lightweight riveted structure subway battery box, which optimizes the structure on the basis of the existing structure and uses a more lightweight aluminum alloy material to replace the original stainless steel material; the surface flatness of the skin can meet the technical requirements, and it is no longer subject to the technical problem of having to scrape putty in the painting process to ensure the surface flatness, thus removing the weight of the putty, achieving the purpose of reducing the weight of the entire battery box, and not affecting the strength and service life of the original structure battery box, and making it more convenient for operators to carry out the daily maintenance work of the battery box.

[0006] The technical solution of the utility model is as follows:

[0007] A lightweight riveted structure subway battery box includes an outer box, an electric control box, a BMS box, a suspension arm, an inner box and an outer box door panel; the outer box includes an outer box skeleton and a skin, the skin does not need to be scraped with putty and is riveted to the outer box skeleton; the inner box is telescopically installed on the left and right sides of the outer box through the suspension arm; the outer box door panel is riveted to the outer box; the electric control box and the BMS box are bolted to the surface of the outer box; the materials of the electric control box, the BMS box, the outer box door panel and the skin are aluminum alloy.

[0008] Further, the parts on the respective door panels of the electric control box and the BMS box all adopt a riveted structure.

[0009] Further, the outer box skeleton includes a cross beam, a longitudinal beam and a hanging beam, the hanging beam adopts a stainless steel rectangular tube profile, and the cross beam and the longitudinal beam are both formed by bending stainless steel plates.

[0010] Further, the suspension arm includes a left arm bracket, a right arm bracket, a left-handed arm, and a right-handed arm; the left arm bracket and the right arm bracket are arranged oppositely, and one end of the left arm bracket and the right arm bracket are connected together by the left-handed arm and the right-handed arm; slide rails are arranged on the upper surfaces of the left arm bracket and the right arm bracket to facilitate the telescopic sliding of the inner box.

[0011] Further, mounting plates and reinforcing beams are arranged in the left arm bracket and the right arm bracket, weight-reducing holes are added to the mounting plates, and the reinforcing beams are L-shaped plates.

[0012] Further, the inner box includes an inner box skeleton, a transverse battery baffle, a longitudinal battery baffle, rollers, and a bottom plate; the transverse battery baffle and the longitudinal battery baffle are arranged on the side surface of the inner box skeleton, rollers are arranged on the outer top of the inner box skeleton, and the rollers slide mutually with the slide rails.

[0013] Further, weight-reducing holes are added to the transverse battery baffle, the longitudinal battery baffle, and the bottom plate.

[0014] Further, the inner box further includes a bolt, and the bolt can be inserted into the positioning hole of the suspension arm.

[0015] The utility model has the following beneficial effects:

[0016] (1) Lightweight; convenient for operation

[0017] The outer box skin, the electric control box, the BMS box, and the outer box door panel are optimized from stainless steel material to aluminum alloy material, greatly reducing the product weight. By comparing the weight with the old structure product of the unified type battery box, the weight is reduced by about 100KG, reducing the bearing pressure of the vehicle body and the bearing pressure of the battery box itself. During the later maintenance and repair of the battery box, the door panel, as a component that often needs to be manually opened, is two-thirds lighter in weight, making it extremely convenient for the operator to open and close.

[0018] (2) Cost reduction

[0019] The outer box skin, the electric control box, the BMS box, and the outer box door panel are optimized from the original welding method to the method of riveting or bolt connection through stainless steel closed type blind rivets, greatly reducing the welding workload, and the flatness of the product surface is extremely good, meeting the quality requirements without need of shape correction, saving working hours, and not needing putty during painting, greatly reducing the painting cost, and also reducing the weight of the putty on the box body. At the same time, with the weight of the raw material decreased and the unit price being not much different, the cost of the raw material is also greatly reduced by two-thirds.

[0020] (3) The lightweight riveting structure subway battery box of the utility model has reasonable design, compact structure, and good market prospect. Description of the Drawings

[0021] Figure 1 is a schematic structural diagram of a subway battery box with a lightweight riveting structure of the present utility model;

[0022] Figure 2 is a schematic structural diagram of the outer box;

[0023] Figure 3 is a schematic structural diagram of the electric control box;

[0024] Figure 4 is a schematic structural diagram of the BMS box;

[0025] Figure 5 is a schematic structural diagram of the suspension arm;

[0026] Figure 6 is a schematic structural diagram of the inner box;

[0027] Figure 7 is a schematic structural diagram of the door panel;

[0028] Among them, 1 - outer box, 2 - electric control box, 3 - BMS box, 4 - suspension arm, 5 - inner box, 6 - outer box door panel;

[0029] 7 - outer box frame, 8 - upper skin, 9 - left skin, 10 - right skin, 11 - lower skin, 12 - ventilation cap, 13 - hanging beam;

[0030] 14 - left arm bracket assembly, 15 - right arm bracket assembly, 16 - left rotating arm, 17 - right rotating arm, 18 - mounting plate, 19 - strengthening beam;

[0031] 20 - electric control box body, 21 - side door panel, 22 - electric control box door panel;

[0032] 23 - BMS box body, 24 - BMS box door panel;

[0033] 25 - inner box frame, 26 - transverse battery baffle, 27 - longitudinal battery baffle, 28 - wire tying rod, 29 - roller, 30 - bottom plate, 31 - bolt;

[0034] 32 - door panel main body, 33 - hook plate, 34 - anti - detachment baffle, 35 - door handle, 36 - air intake baffle. Specific embodiments

[0035] The following further describes the present utility model in conjunction with the accompanying drawings and embodiments.

[0036] The lightweight riveting structure subway battery box of this embodiment, according to the characteristics of its box body structure, improves the process, replaces the material, etc. on the basis of the existing unified - type battery box to achieve the purpose of lightweight.

[0037] Refer to Figures 1 to 7As shown in the figure, the lightweight riveted structure subway battery box of this embodiment includes an outer box 1, an electric control box 2, a BMS box 3, a suspension arm 4, an inner box 5 and an outer box door panel 6. The left and right sides of the outer box 1 are telescopically installed with the inner box 5 through the suspension arm 4, so that the inner box 5 can be retracted into the outer box 1; the outer side of the inner box 1 is connected to the outer box door panel 6, and the electric control box 2 and the BMS box 3 are arranged on the front side of the outer box 1.

[0038] Among them, as Figure 2 shown, the outer box 1 includes an outer box skeleton 7, an upper skin 8, a left skin 9, a right skin 10, a lower skin 11, a ventilation cap 12 and a suspension beam 13.

[0039] Regarding the outer box skeleton 7, the suspension beam 13 uses a stainless steel rectangular tube profile, and the lugs on the suspension beam 13 are connected to the vehicle body underframe through its long waist holes; the cross beams and longitudinal beams in the remaining outer box skeletons 7 are all bent from stainless steel plates and then welded to other components such as the suspension beam 13. After welding, straightening and flaw detection are carried out to form the outer box skeleton 7.

[0040] In this embodiment, the upper skin 8, the left skin 9, the right skin 10, the lower skin 11 and the outer box skeleton 7 are each sprayed with primer; sealant is applied to the contact surface between each skin and the outer box skeleton 7, and each skin is first pre-assembled and fixed with the outer box skeleton 7, which importantly plays a sealing role; then stainless steel blind rivets filled with the same sealant are used to rivet each skin and the outer box skeleton 7 to meet the requirements of waterproof and dustproof; after riveting, the excess sealant on the surface of the rivet head is removed.

[0041] The upper skin 8, the left skin 9, the right skin 10 and the ventilation cap 12 are all made of aluminum plates. The material of the lower skin 11 is stainless steel.

[0042] Among them, as Figure 3 shown, the electric control box 2 includes an electric control box body 20, a side door panel 21 and an electric control box door panel 22. The material of the electric control box 2 is aluminum alloy. Similar to the riveting of the skin of the outer box 1, the parts on the side door panel 21 and the electric control box door panel 22 are all changed from welded structures to riveted structures. The electric control box 2 is connected to the outer box 1 by means of bolt connection.

[0043] Among them, as Figure 4 shown, the BMS box 3 includes a BMS box body 23 and a BMS box door panel 24. The material of the BMS box 3 is aluminum alloy. Similar to the riveting of the skin of the outer box 1, the parts on the BMS box door panel 24 are all changed from welded structures to riveted structures. The BMS box 3 is connected to the outer box 1 by means of bolt connection.

[0044] In this embodiment, the primer is sprayed on the electric control box body 20 and the BMS box body 23 respectively; applying sealant to the contact surface parts between the electric control box body 20, the BMS box body 23 and the skin of the outer box 1 serves the purposes of pre-assembly and sealing; the electric control box body 20 and the BMS box body 23 are assembled with the outer box 1 with the skin riveted, and the assembly is connected by bolts.

[0045] In this embodiment, the electric control box 2, the BMS box 3, the outer box door panel 6, the upper skin 8, the left skin 9, and the right skin 10 are all made of aluminum alloy; they are assembled by riveting with stainless steel blind rivets or bolt connection methods. Traditional battery boxes are all made of stainless steel and are only connected by welding.

[0046] Among them, as Figure 5 shown, the suspension arms 4 are fixed on both sides of the outer box 1, and it includes a left arm bracket 14, a right arm bracket 15, a left rotating arm 16, a right rotating arm 17, a mounting plate 18, and a reinforcing beam 19; the left arm bracket 14 and the right arm bracket 15 are arranged oppositely, and one end of the left arm bracket 14 and the right arm bracket 15 are connected together by the left rotating arm 16 and the right rotating arm 17; slideways are arranged on the left arm bracket 14 and the right arm bracket 15 to facilitate the telescopic sliding of the inner box 5. The mounting plate 18 and the reinforcing beam 19 are arranged in the left arm bracket 14 and the right arm bracket 15.

[0047] Preferably, the mounting plate 18 is provided with weight-reducing holes; the reinforcing beam 19 optimizes the original rectangular tube into an L-shaped plate.

[0048] Among them, as Figure 6 shown, the inner box 5 includes an inner box skeleton 25, a transverse battery baffle 26, a longitudinal battery baffle 27, a wire tying rod 28, a roller 29, a bottom plate 30, and a bolt 31; the transverse battery baffle 26 and the longitudinal battery baffle 27 are arranged on the side surface of the inner box skeleton 25, and the roller 29 is arranged on the top of the outer side of the inner box skeleton 25, and the roller 29 slides mutually with the slide rails on the upper surfaces of the above-mentioned left arm bracket 14 and right arm bracket 15.

[0049] When the inner box 5 is pushed into the inner limit of the outer box 1, the bolts 31 on both sides insert the pin shafts into the positioning holes of the suspension arm 4, so that the inner box 5 is fixed. When the inner box 5 needs to be pulled out, the bolts 31 on both sides need to be opened.

[0050] Preferably, the transverse battery baffle 26 and the longitudinal battery baffle 27 are both provided with weight-reducing holes, and the bottom plate 30 is provided with multiple weight-reducing holes and serves as a drain hole for battery leakage.

[0051] Among them, as Figure 6 shown, the outer box door panel 6 includes a door panel main body 32, a hook plate 33, an anti-disengagement baffle 34, a door handle 35, and an air intake baffle 36. The outer box door panel 6 is made of aluminum alloy. Similar to the riveting of the skin of the outer box 1, the parts on the outer box door panel 6 are all riveted by stainless steel blind rivets.

[0052] The above are only the preferred embodiments of the present utility model and do not constitute a limitation to the protection scope of the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the claims of the present utility model.

Claims

1. A lightweight riveted structure subway battery box, characterized in that: The battery box includes an outer box, an electric control box, a BMS box, a suspension arm, an inner box and an outer box door panel; the outer box includes an outer box frame and a skin, the skin does not need to be puttyed and the skin is riveted to the outer box frame; the inner box is telescopically mounted on the left and right sides of the outer box through the suspension arm; the outer box door panel is riveted to the outer box; the outer box surface is bolted with an electric control box and a BMS box; the electric control box, the BMS box, the outer box door panel and the skin are made of aluminum alloy; The parts on the door panels of the electric control box and the BMS box are all riveted; The suspension arm comprises a left arm bracket, a right arm bracket, a left-hand swing arm and a right-hand swing arm; the left arm bracket and the right arm bracket are arranged opposite to each other, and one end of the left arm bracket and the right arm bracket are connected together through the left-hand swing arm and the right-hand swing arm; the upper surfaces of the left arm bracket and the right arm bracket are provided with slide rails to facilitate the telescopic sliding of the inner box; The inner box includes an inner box frame, a transverse battery baffle, a longitudinal battery baffle, rollers, and a bottom plate; the transverse battery baffle and the longitudinal battery baffle are arranged on the side of the inner box frame, and the rollers are arranged on the top of the outer side of the inner box frame, and the rollers and the slide rails slide with each other; the transverse battery baffle, the longitudinal battery baffle, and the bottom plate are all provided with weight reduction holes.

2. A lightweight riveted structure subway battery box as claimed in claim 1, characterized in that: The outer box frame comprises a cross beam, a longitudinal beam and a hanging beam. The hanging beam is made of a stainless steel rectangular tube profile, and the cross beam and the longitudinal beam are both made of stainless steel plates by bending.

3. A lightweight riveted structure subway battery box as claimed in claim 1, characterized in that: The left arm bracket and the right arm bracket are provided with a mounting plate and a reinforcing beam, weight-reducing holes are added to the mounting plate, and the reinforcing beam is set as an L-shaped plate.

4. A lightweight riveted structure subway battery box as claimed in claim 1, characterized in that: The inner box also includes a latch which can be inserted into the positioning hole of the suspension arm.

Images