Battery plastic shell with a guide type pressure relief cavity structure

Abstract

The utility model relates to lead -acid battery technical field discloses a battery plastic shell of guide type pressure relief cavity structure, including the casing, the front and back of casing all install pressure relief subassembly, the inside interval mounting of casing has buffer assembly, buffer assembly includes the baffle, the surface fixed connection of baffle has two elastic clamps, the inside of baffle is established transmission groove, the utility model discloses a buffer assembly is established, the device uses, according to the size of battery, the position of baffle is adjusted, after adjusting, rotates the swingle, makes bevel gear B rotate, thereby makes bevel gear A rotate, bidirectional screw rod rotates under the action of bevel gear A, thereby makes two limit cylinder opposite direction movement, makes limit cylinder insert to the inside of slot, thereby realizes the location of baffle, through the position of baffle is adjusted to make the device can adapt to the battery of different size, improved the adaptation range of device.

Description

TECHNICAL FIELD

[0001] The utility model relates to lead -acid battery technical field especially relates to a battery plastic shell of guide type pressure relief cavity structure. BACKGROUND

[0002] The lead-acid battery shell is used to contain electrolyte and plate group, which is usually made of polyethylene plastic. During the assembly of the lead-acid battery, the plate group of the lead-acid battery is directly inserted into the battery tank in the lead-acid battery shell and clamped to avoid the shaking of the plate group. During the process of inserting the plate group into the battery tank, the plate group is not easy to align with the opening of the battery tank, and is easy to scratch the four walls of the opening of the battery tank, which causes the active material on the plate to fall off. Moreover, the thickness of the plate group is usually inconsistent, and it is difficult to ensure that the plate group is completely pressed against the wall of the battery tank after insertion. During use, the active material on the plate is easy to fall off due to vibration, and most importantly, the plate group will swell after being used for a period of time, which causes the plate to be pressed against the inner wall of the battery tank. Since the plate group and the inner wall of the battery tank are in hard contact, the plate group is easy to be damaged, which causes the battery to malfunction or fail.

[0003] In the Chinese utility model patent with publication number CN205846027U, an anti-swelling lead-acid battery plastic shell is disclosed, which is provided with a plurality of longitudinal partitions. The partitions divide the inner part of the shell into a plurality of independent spaces, and the independent spaces form battery tanks. The inner walls on both sides of the battery tank are provided with elastic clamping plates. The elastic clamping plates include a guide section and a clamping section made of elastic material. The guide section is inclined downward, and the clamping section is vertical. One end of the guide section is fixedly connected with the inner wall of the battery tank, and the other end of the guide section is fixedly connected with the clamping section. Although the utility model has a simple structure, it is convenient to insert the plate group, has good stability, and can effectively prevent the plate group from swelling and being damaged.

[0004] According to the related technology in the above, the inventors believe that the following defects exist: When the device is actually used, the elastic clamping plate is used to reduce the buffer when the battery swells and reduce the damage. However, it cannot solve the possibility of the battery shell being broken or even exploding due to excessive internal pressure of the battery. The pressure needs to be released, and different batteries need to be adapted according to the size of the battery due to the difference in the size of the battery. UTILITY MODEL CONTENTS

[0005] To solve the above technical problems, the utility model provides a battery plastic shell with a guide type pressure relief cavity structure.

[0006] The utility model discloses the following technical scheme realizes: a battery plastic shell of guide type pressure relief cavity structure, including the shell, the front and back of shell are all installed with pressure relief subassembly, and the inside interval installation of shell has the buffer subassembly.

[0007] The buffer assembly includes a partition plate, two elastic clamping plates are fixedly connected to the surface of the partition plate, a transmission groove is formed in the interior of the partition plate, a bidirectional screw rod is installed in the interior of the transmission groove, two limiting cylinders are threadedly connected to the surface of the bidirectional screw rod, a bevel gear A is sleeved to the surface of the bidirectional screw rod, and a bevel gear B is meshedly connected to the surface of the bevel gear A.

[0008] The pressure relief assembly includes a pressure relief cavity, the surface of the pressure relief cavity is fixedly connected to the surface of the shell, spring rods are fixedly connected to the inner wall of the pressure relief cavity at equal intervals, and one end of the spring rod is fixedly connected to a plugging block.

[0009] As a further improvement of the above-mentioned scheme, the front and back of the shell are provided with plugging grooves matched with the plugging block, facilitating pressure relief work.

[0010] As a further improvement of the above-mentioned scheme, the front and back of the inner wall of the shell are provided with insertion grooves matched with the limiting cylinders, and one end of the insertion groove is in communication with one end of the plugging groove, facilitating the limiting work of the partition plate.

[0011] As a further improvement of the above-mentioned scheme, two bearing seats are installed on the surface of the bidirectional screw rod, the bottom of the bearing seat is fixedly connected to the bottom of the transmission groove inner wall, and the normal work of the bidirectional screw rod is ensured.

[0012] As a further improvement of the above-mentioned scheme, the bottom of the limiting cylinder is fixedly connected to a limiting block, and the bottom of the transmission groove inner wall is provided with a limiting groove matched with the limiting block, and the normal movement of the limiting cylinder is ensured.

[0013] As a further improvement of the above-mentioned scheme, a rotating rod is fixedly connected to the shaft center of the bevel gear B, a hand wheel is fixedly connected to the top end of the rotating rod, a small bearing is installed on the surface of the rotating rod, and the small bearing is installed on the top of the partition plate, facilitating the rotation of the bevel gear B.

[0014] As a further improvement of the above-mentioned scheme, the spring rod includes a fixed cylinder, a connecting rod is slidably connected to the interior of the fixed cylinder, and the connecting rod one end and the inner wall of the fixed cylinder are connected through a limiting spring, for limiting the plugging block.

[0015] Compared with the prior art, the utility model has the beneficial effects that: 1. This utility model, by setting a buffer component, allows the device to adjust the position of the separator according to the size of the battery during use. After adjustment, rotating the rotating rod causes the helical gear B to rotate, which in turn causes the helical gear A to rotate. The bidirectional lead screw rotates under the action of the helical gear A, causing the two limiting cylinders to move in opposite directions, so that the limiting cylinders are inserted into the slots, thereby limiting the separator. By adjusting the position of the separator, the device can be adapted to batteries of different sizes, thus improving the adaptability of the device.

[0016] 2. By setting up a pressure relief component, if the battery expands during the use of the device, the elastic clamp will buffer the expansion force caused by the expansion. If the pressure is too high, the sealing block will be pushed out of the sealing groove under the pressure, and the pressure will enter the pressure relief chamber. When the pressure returns to normal, the sealing block will be pressed back into the sealing groove under the action of the spring rod. This allows the device to effectively reduce the internal pressure of the battery and improve the safety of the device. Attached Figure Description

[0017] Fig. 1 This is a schematic diagram of the structure of this utility model; Fig. 2 This is a schematic diagram of the structure of the pressure relief chamber, spring rod, and sealing block of this utility model; Fig. 3 This is a schematic diagram of the structure of the limiting cylinder, helical gear A, and helical gear B of this utility model.

[0018] Explanation of key symbols: 1. Housing; 2. Partition plate; 3. Elastic clamping plate; 4. Two-way lead screw; 5. Limiting cylinder; 6. Helical gear A; 7. Helical gear B; 8. Pressure relief chamber; 9. Spring rod; 10. Sealing block. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. Example

[0020] Please combine Figs. 1-3 The battery casing of this embodiment with a guided pressure relief chamber structure includes a casing 1. Pressure relief components are installed on both the front and back of the casing 1, and buffer components are installed at equal intervals inside the casing 1.

[0021] The buffer assembly is used to buffer the expansion force generated by the battery. The buffer assembly includes a separator 2, with two elastic clamps 3 fixedly connected to the surface of the separator 2. A transmission groove is formed inside the separator 2, and a bidirectional lead screw 4 is installed inside the transmission groove. Two seated bearings are mounted on the surface of the bidirectional lead screw 4, and the bottoms of the seated bearings are fixedly connected to the bottom of the inner wall of the transmission groove, ensuring the normal operation of the bidirectional lead screw 4. Two limiting cylinders 5 are threadedly connected to the surface of the bidirectional lead screw 4. Slots adapted to the limiting cylinders 5 are formed on both the front and back of the inner wall of the housing 1, and one slot... One end of the limit cylinder 5 is connected to the sealing groove to facilitate the limiting operation of the partition 2. The bottom of the limit cylinder 5 is fixedly connected to the limit block. The bottom of the inner wall of the transmission groove is provided with a limit groove that matches the limit block, ensuring the normal movement of the limit cylinder 5. The surface of the bidirectional lead screw 4 is sleeved with a helical gear A6. The surface of the helical gear A6 is meshed with a helical gear B7. The shaft of the helical gear B7 is fixedly connected to a rotating rod. The top of the rotating rod is fixedly connected to a handwheel. The surface of the rotating rod is equipped with a small bearing. The surface of the small bearing is installed on the top of the partition 2 to facilitate the rotation of the helical gear B7.

[0022] The pressure relief assembly is used to reduce the internal pressure of the battery. The pressure relief assembly includes a pressure relief chamber 8, the surface of which is fixedly connected to the surface of the housing 1. Spring rods 9 are fixedly connected at equal intervals on the inner wall of the pressure relief chamber 8. The spring rods 9 include a fixed cylinder, and a connecting rod is slidably connected inside the fixed cylinder. One end of the connecting rod is connected to the inner wall of the fixed cylinder by a limiting spring, which is used to limit the sealing block 10. One end of the spring rod 9 is fixedly connected to the sealing block 10. Sealing grooves that are adapted to the sealing block 10 are opened on the front and back of the housing 1 to facilitate pressure relief.

[0023] The implementation principle of the battery plastic shell with a guide-type pressure relief chamber structure in this application embodiment is as follows: When the device is in use, the position of the separator 2 is adjusted according to the size of the battery. After the adjustment is completed, the rotating rod is rotated, so that the helical gear B7 rotates, thereby causing the helical gear A6 to rotate. The bidirectional lead screw 4 rotates under the action of the helical gear A6, thereby causing the two limiting cylinders 5 to move in opposite directions, so that the limiting cylinders 5 are inserted into the slot, thereby realizing the limiting of the separator 2. By adjusting the position of the separator 2, the device can be adapted to batteries of different sizes, thus improving the adaptability of the device.

[0024] During the use of the device, if the battery expands, the elastic clamp 3 will buffer the expansion, thereby reducing the expansion force. If the pressure is too high, the sealing block 10 will be pushed out of the sealing groove under the pressure, and the pressure will enter the pressure relief chamber 8. When the pressure returns to normal, the sealing block 10 will be pressed against the inside of the sealing groove again under the action of the spring rod 9, so that the device can effectively reduce the internal pressure of the battery and improve the safety of the device.

[0025] The above-mentioned embodiments are only preferred embodiments of the present application, and cannot be used to limit the scope of protection of the present application. Any non-essential changes and replacements made by those skilled in the art on the basis of the present application shall fall within the scope of protection of the present application.

Claims

1. A battery casing with a guided pressure relief chamber structure, characterized in that, Includes a housing (1), with pressure relief components installed on both the front and back of the housing (1), and buffer components installed at equal intervals inside the housing (1); The buffer assembly includes a partition (2), two elastic clamps (3) are fixedly connected to the surface of the partition (2), a transmission groove is opened inside the partition (2), a bidirectional lead screw (4) is installed inside the transmission groove, two limiting cylinders (5) are threadedly connected to the surface of the bidirectional lead screw (4), a helical gear A (6) is sleeved on the surface of the bidirectional lead screw (4), and a helical gear B (7) is meshed on the surface of the helical gear A (6). The pressure relief assembly includes a pressure relief chamber (8), the surface of which is fixedly connected to the surface of the housing (1), and spring rods (9) are fixedly connected at equal intervals on the inner wall of the pressure relief chamber (8), with a sealing block (10) fixedly connected to one end of the spring rods (9).

2. The battery casing with a guided pressure relief chamber structure as described in claim 1, characterized in that, The front and back of the housing (1) are provided with sealing grooves that are compatible with the sealing block (10).

3. The battery casing with a guided pressure relief chamber structure as described in claim 1, characterized in that, The inner wall of the housing (1) has slots on the front and back sides that are compatible with the limiting cylinder (5), and one end of the slot is connected to one end of the sealing groove.

4. The battery casing with a guided pressure relief chamber structure as described in claim 1, characterized in that, The surface of the bidirectional lead screw (4) is equipped with two seated bearings, and the bottom of the seated bearings is fixedly connected to the bottom of the inner wall of the transmission groove.

5. The battery casing with a guided pressure relief chamber structure as described in claim 1, characterized in that, The bottom of the limiting cylinder (5) is fixedly connected to a limiting block, and the bottom of the inner wall of the transmission groove is provided with a limiting groove that matches the limiting block.

6. The battery casing with a guided pressure relief chamber structure as described in claim 1, characterized in that, A rotating rod is fixedly connected to the shaft of the helical gear B (7), a handwheel is fixedly connected to the top of the rotating rod, a small bearing is installed on the surface of the rotating rod, and the surface of the small bearing is installed on the top of the partition (2).

7. The battery casing with a guided pressure relief chamber structure as described in claim 1, characterized in that, The spring rod (9) includes a fixed cylinder, and a connecting rod is slidably connected inside the fixed cylinder. One end of the connecting rod is connected to the inner wall of the fixed cylinder by a limiting spring.

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