Reserved maintenance mechanism for galvanic pile box

Abstract

The reserved overhauling mechanism is provided with an electric pile box shell, an overhauling opening is formed in the side face of the electric pile box shell, a protective cover plate is arranged on the outer side of the overhauling opening in a covering mode, the protective cover plate is installed on the side face of the electric pile box shell, and an installation groove is formed in the position, at the edge of the protective cover plate, of the electric pile box shell; comprising a limiting mechanism penetrating through the interior of the protective cover plate, and the limiting mechanism is used for locking between the protective cover plate and the galvanic pile box shell; the expansion assembly is arranged on the side wall of the galvanic pile box shell, the expansion assembly is used for expanding the area of the access hole, and the access hole and the expansion assembly are both arranged in the protective cover plate in a covering mode. According to the reserved maintenance mechanism for the electric pile box, the maintenance window is reserved in the electric pile box shell, and the interior of the electric pile box can be maintained only by opening the cover plate on the outer side of the maintenance window, so that the later maintenance is greatly facilitated, the operation is convenient, and a large amount of time can be saved.

Description

Technical Field

[0001] The utility model relates to the technical field of stack boxes, in particular to a reserved maintenance mechanism for a stack box. Background Technique

[0002] A stack box is a device that converts chemical energy into electrical energy. Inside it, a hydrogen fuel cell is set to generate electricity, which is more environmentally friendly. Its shell is made of metal and is integrally die-cast, such as a stack box body with the publication number of CN213878170U. In the stack box body, at least one pair of side plates among the two pairs of oppositely arranged side plates have first step structures at both side edges, and the two side edges of the two pairs of side plates are clamped with each other, and there are weld seams at the clamping positions; the bottom edge of the side plate has a second step structure, and this second step structure is respectively clamped at the edge of the bottom plate, and there are weld seams at the clamping positions; at the edge of the above-mentioned side plate and at the edge of the bottom of the side plate and the bottom plate, weld connection is adopted, which solves the disadvantages of screw loosening, thread corrosion, sealant aging and large screw installation space requirements; and, during the forming process of the stack box body, the mutual clamping between the bottom plate, the front plate, the left side plate, the right side plate and the rear plate is used to replace the inner support frame, which solves the disadvantages of troublesome disassembly and assembly of the inner support frame, low efficiency and high cost. However, the stack box body still has the following disadvantages during actual use:

[0003] The traditional stack box body is fixed together by 60 - 80 bolts on the upper and lower covers. When the hydrogen energy battery stack needs to be maintained and repaired, these bolts need to be disassembled one by one, so it is very inconvenient and the operation is rather cumbersome. In view of the above problems, it is urgent to innovate and design on the basis of the original maintenance mechanism. Content of the Utility Model

[0004] The purpose of the utility model is to provide a reserved maintenance mechanism for a stack box to solve the problem that the traditional stack box body is fixed together by 60 - 80 bolts on the upper and lower covers. When the hydrogen energy battery stack needs to be maintained and repaired, these bolts need to be disassembled one by one, so it is very inconvenient and the operation is rather cumbersome as put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A reserved maintenance mechanism for a stack box is provided with a stack box shell. An inspection opening is arranged on the side surface of the stack box shell, and a protective cover plate is covered outside the inspection opening. The protective cover plate is installed on the side surface of the stack box shell, and an installation groove is arranged on the stack box shell at the edge of the protective cover plate, and the protective cover plate is connected with the stack box shell in a snap-fit manner through the installation groove;

[0006] It includes: a limiting mechanism, which penetrates through the inside of the protective cover plate, and the limiting mechanism is used for locking between the protective cover plate and the stack box shell;

[0007] An extension component is arranged on the side wall of the stack box shell, and the extension component is used to expand the area of ​​the inspection port, and the inspection port and the extension component are both covered in a protective cover.

[0008] Preferably, the limiting mechanism includes an adjusting rod penetrating through the protective cover plate, and the adjusting rod and the protective cover plate are rotatably connected, and after the protective cover plate is engaged with the mounting groove, the sealing plate can be driven to be in the inspection opening for sealing.

[0009] Preferably, a locking block is fixed to the end of the adjusting rod, and the locking block is located inside the battery stack box shell, and the side of the locking block is tightly fitted with the inner wall of the battery stack box shell. The adjusting rod is rotated 90° so that the horizontal locking block is in a vertical state, thereby achieving the function of locking the protective cover plate and the battery stack box shell.

[0010] Preferably, a sealing plate is rotatably sleeved on the outer side of the adjusting rod, and the edge of the sealing plate is in contact with the inside of the inspection opening, the spacing between the sealing plate and the protective cover plate is variable, and the sealing plate can only rotate on the adjusting rod.

[0011] Preferably, the expansion component includes a movable plate arranged on the inner side of the inspection port, and a fixed cavity is opened on the stack box shell outside the movable plate, and the top of the movable plate and the bottom of the sealing plate are fit-connected, so that the area of ​​the inspection port can be expanded by setting the movable plate.

[0012] Preferably, the movable plate forms a sliding structure through the fixed cavity and the battery stack box shell, and the bottom of the movable plate is connected to the inner bottom surface of the fixed cavity through a spring, and the movable plate can be slidably received in the fixed cavity, or slid out to fit the sealing plate.

[0013] Preferably, an adjustment plate is fixed at the upper edge of the movable plate, and the cross-section of the adjustment plate is an inverted "L"-shaped structure, and a fixing groove is opened on the stack box shell below the adjustment plate. The movable plate is driven down by moving the adjustment plate, and the adjustment plate can slide into the fixing groove.

[0014] Preferably, the width of the fixing groove is greater than the width of the adjusting plate, and two limit blocks are symmetrically arranged on the inner wall of the fixing groove, and the limit blocks are made of rubber material, and the position of the adjusting plate after descending can be limited by the setting of the limit blocks.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the reserved maintenance mechanism for the battery stack box reserves a maintenance window on the battery stack box shell, and the inside of the battery stack box can be repaired by only opening the cover plate outside the maintenance window, thereby greatly facilitating the later maintenance and repair, and the operation is convenient, which can save a lot of time. The specific contents are as follows:

[0016] 1. When the edge of the protective cover plate is stuck in the installation groove, it just drives the sealing plate to abut against the inner side of the inspection opening. Then, rotate the adjusting rod to make the horizontal locking block rotate to the vertical state. When the locking block fits against the inner wall of the fuel cell stack box housing, the locking of the fuel cell stack box housing and the protective cover plate can be achieved.

[0017] 2. When it is necessary to adjust the size of the inspection opening, the adjusting plate can be toggled downward to drive the movable plate to slide down and be received in the fixed cavity. Then, the adjusting plate slides into the fixed groove, and the position of the adjusting plate is limited by the limiting block, which can ensure the stability of the position of the movable plate after it descends. After the inspection is completed, the adjusting plate is toggled upward, and the resilience of the spring can drive the movable plate to rise to block part of the inspection opening. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a front view structural schematic diagram of the present utility model;

[0019] Figure 2 is a bottom view structural schematic diagram of the present utility model;

[0020] Figure 3 is a side view structural schematic diagram of the inspection opening of the present utility model;

[0021] Figure 4 is a side view structural schematic diagram of the sealing plate and the movable plate of the present utility model;

[0022] Figure 5 is the present utility model Figure 4 enlarged structural schematic diagram at A in;

[0023] Figure 6 is a front sectional structural schematic diagram of the sealing plate and the movable plate of the present utility model;

[0024] Figure 7 is a structural schematic diagram after the movable plate of the present utility model descends.

[0025] In the figure: 1, fuel cell stack box housing; 2, inspection opening; 3, protective cover plate; 4, installation groove; 5, adjusting rod; 6, locking block; 7, sealing plate; 8, movable plate; 9, fixed cavity; 10, adjusting plate; 11, fixed groove; 12, limiting block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0027] Please refer to Figures 1-7, the present utility model provides the following technical solutions:

[0028] Embodiment 1: To solve the problems existing in the prior art, this embodiment adopts the following technical solutions. A reserved maintenance mechanism for an electric stack box is provided with an electric stack box housing 1. A maintenance opening 2 is formed on the side of the electric stack box housing 1, and a protective cover plate 3 is sleeved outside the maintenance opening 2. The protective cover plate 3 is installed on the side of the electric stack box housing 1, and an installation groove 4 is formed on the electric stack box housing 1 at the edge of the protective cover plate 3. The protective cover plate 3 is snap-connected to the electric stack box housing 1 through the installation groove 4. It includes: a limiting mechanism penetrating through the inside of the protective cover plate 3, and the limiting mechanism is used for locking between the protective cover plate 3 and the electric stack box housing 1; an expansion component arranged on the side wall of the electric stack box housing 1, and the expansion component is used to expand the area of the maintenance opening 2, and both the maintenance opening 2 and the expansion component are sleeved inside the protective cover plate 3.

[0029] The existing electric stack box is fixed together by 60 - 80 bolts on the upper and lower covers. When the hydrogen energy battery stack needs to be maintained or repaired, these bolts need to be disassembled one by one, so it is very inconvenient and the operation is rather cumbersome. As Figures 1-4 and Figure 6 shown, the limiting mechanism includes an adjusting rod 5 penetrating through the protective cover plate 3, and the adjusting rod 5 is rotatably connected to the protective cover plate 3; a locking block 6 is fixed at the end of the adjusting rod 5, and the locking block 6 is inside the electric stack box housing 1, and the side of the locking block 6 is in close contact with the inner wall of the electric stack box housing 1; a sealing plate 7 is rotatably sleeved outside the adjusting rod 5, and the edge of the sealing plate 7 is in contact connection with the inside of the maintenance opening 2. First, cover the protective cover plate 3 on the side of the electric stack box housing 1, make the edge of the protective cover plate 3 stuck in the installation groove 4, which just drives the sealing plate 7 to abut against the inside of the maintenance opening 2. Then rotate the adjusting rod 5 to make the horizontal locking block 6 rotate to a vertical state, and the locking block 6 fits with the inner wall of the electric stack box housing 1, thus realizing the locking of the electric stack box housing 1 and the protective cover plate 3.

[0030] Embodiment 2: The size of the existing maintenance opening 2 of the electric stack box is fixedly set, and it is not convenient to adjust the size of the maintenance opening 2 accordingly according to different maintenance requirements. Therefore, this embodiment adopts the following technical solutions. As Figures 4-7As shown, the expansion component includes a movable plate 8 disposed inside the maintenance opening 2. A fixing cavity 9 is formed on the stack box housing 1 outside the movable plate 8. The top of the movable plate 8 is in fitting connection with the bottom of the sealing plate 7. The movable plate 8 and the stack box housing 1 form a sliding structure through the fixing cavity 9, and the bottom of the movable plate 8 is connected to the inner bottom surface of the fixing cavity 9 through a spring. An adjusting plate 10 is fixed at the upper edge of the movable plate 8. The cross-section of the adjusting plate 10 is an inverted "L" shape structure. A fixing groove 11 is formed on the stack box housing 1 below the adjusting plate 10. The width of the fixing groove 11 is greater than the width of the adjusting plate 10. Two limiting blocks 12 are symmetrically arranged on the inner wall of the fixing groove 11, and the limiting blocks 12 are made of rubber. When it is necessary to repair the inside of the stack box housing 1 through the maintenance opening 2, the locking block 6 in the vertical state is rotated to the horizontal state by the adjusting rod 5 to release the locking of the stack box housing 1 and the protective cover plate 3, so that the protective cover plate 3 can be disassembled, and the sealing of the maintenance opening 2 by the sealing plate 7 is released. When it is necessary to adjust the size of the maintenance opening 2, the adjusting plate 10 can be toggled downward to drive the movable plate 8 to slide and be received in the fixing cavity 9. Then the adjusting plate 10 slides into the fixing groove 11, and the limiting of the adjusting plate 10 by the limiting blocks 12 can ensure the stability of the position of the movable plate 8 after it descends. After the maintenance is completed, the adjusting plate 10 is toggled upward, and the resilience of the spring can drive the movable plate 8 to rise to block part of the maintenance opening 2. Then, after the protective cover plate 3 is installed, the sealing plate 7 is in contact with the movable plate 8 to close the entire maintenance opening 2.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A reserved maintenance mechanism for a stack box, provided with a stack box housing (1), a maintenance opening (2) is formed on the side surface of the stack box housing (1), and a protective cover plate (3) is covered outside the maintenance opening (2). The protective cover plate (3) is installed on the side surface of the stack box housing (1), and an installation groove (4) is formed on the stack box housing (1) at the edge of the protective cover plate (3), and the protective cover plate (3) is connected to the stack box housing (1) in a snap-fit manner through the installation groove (4); It is characterized in that Including: A limiting mechanism, penetrating through the inside of the protective cover plate (3), and the limiting mechanism is used for locking between the protective cover plate (3) and the stack box housing (1); An expansion component, arranged on the side wall of the stack box housing (1), the expansion component is used to expand the area of the maintenance opening (2), and both the maintenance opening (2) and the expansion component are covered inside the protective cover plate (3).

2. The reserved maintenance mechanism for the stack box according to claim 1, characterized in that: The limiting mechanism includes an adjusting rod (5) penetrating through the protective cover plate (3), and the adjusting rod (5) is rotatably connected to the protective cover plate (3).

3. The reserved maintenance mechanism for the stack box according to claim 2, characterized in that: A locking block (6) is fixed at the end of the adjusting rod (5), and the locking block (6) is inside the stack box housing (1), and the side surface of the locking block (6) is in close contact with the inner wall of the stack box housing (1).

4. The reserved maintenance mechanism for an electric stack box according to claim 3, characterized in that: A sealing plate (7) is rotatably sleeved on the outer side of the adjusting rod (5), and the edge of the sealing plate (7) is in contact connection with the inside of the maintenance opening (2).

5. The reserved maintenance mechanism for the stack box according to claim 1, characterized in that: The expansion component includes a movable plate (8) arranged inside the maintenance opening (2), a fixed cavity (9) is formed on the stack box housing (1) outside the movable plate (8), and the top of the movable plate (8) is in fit connection with the bottom of the sealing plate (7).

6. The reserved maintenance mechanism for the stack box according to claim 5, characterized in that: The movable plate (8) and the stack box housing (1) form a sliding structure through the fixed cavity (9), and the bottom of the movable plate (8) is connected to the inner bottom surface of the fixed cavity (9) through a spring.

7. The reserved maintenance mechanism for the stack box according to claim 6, characterized in that: An adjusting plate (10) is fixed at the upper edge of the movable plate (8), and the cross-section of the adjusting plate (10) is an inverted "L" shape structure, and a fixed groove (11) is formed on the stack box housing (1) below the adjusting plate (10).

8. The reserved maintenance mechanism for the stack box according to claim 7, characterized in that: The width of the fixed groove (11) is greater than the width of the adjusting plate (10), and two limiting blocks (12) are symmetrically arranged on the inner wall of the fixed groove (11), and the limiting blocks (12) are made of rubber material.

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