Connecting structure for improving disassembly safety of battery cover

Abstract

The utility model relates to the technical field of disassembly and assembly of battery covers, and discloses a connecting structure for improving the disassembly safety of a battery cover, which comprises a shell and a battery cover, the shell is provided with a battery cavity in a concave manner, the battery cover can open or close the battery cavity, and a rotary clamping structure is arranged between the battery cavity and the battery cover and can realize clamping connection or release clamping connection along with relative rotation of the battery cavity and the battery cover. A locking structure for limiting relative rotation of the battery cavity and the battery cover when the battery cover rotates to be clamped with the battery cavity is arranged between the battery cavity and the battery cover, the connecting structure needs to be driven to unlock the locking structure so as to relieve rotation limitation on the battery cover, in the unlocking state, the battery cover rotates to be clamped with the battery cavity, and then the battery cover can be taken down. The disassembly of the battery cover can be realized by two independent and combined actions of unlocking and rotating the battery cover, so that the safety is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of battery cover disassembly and assembly, and in particular to a connection structure for improving the safety of battery cover disassembly. Background Art

[0002] Some electronic devices can be powered by button batteries. However, to ensure the safety of button batteries, the button batteries in most electronic devices cannot be replaced, which results in the electronic devices being directly discarded after they run out of power, which is too wasteful.

[0003] A Chinese patent application numbered 201320431991.X discloses an automatic darkening welding filter with replaceable batteries, comprising a battery cover, a button battery and a filter box. The filter box is provided with a battery placement hole, in which the button battery is placed. A rotating handle is provided on the top of the battery cover, a card slot is provided inside the edge of the battery cover, and a buckle is provided on the outer edge of the battery placement hole. The battery cover is covered and rotated until the card slot and the buckle are engaged to form a locked state, so that the battery cover is covered on the filter box.

[0004] In the above solution, the battery cover can be disassembled and the button battery can be replaced by simply rotating the battery cover. However, the CE certification has specific standards for the opening method of the battery cover in a removable button battery. Two independent and combined actions are required to open the battery cover to ensure safety in use. Therefore, the battery cover disassembly method in the above solution does not meet the safety standards. Utility Model Content

[0005] The utility model aims to solve the problem of low safety in the prior art that the battery cover can be directly opened by a single step of rotating the battery cover, and provides a connection structure that improves the safety of disassembling the battery cover.

[0006] In order to solve the above technical problems, the utility model is solved by the following technical solutions:

[0007] A connection structure for improving the safety of battery cover disassembly, comprising a shell with a battery cavity recessed therein and a battery cover capable of opening or closing the battery cavity, a rotating clamping structure capable of being engaged or disengaged as the battery cavity and the battery cover rotate relative to each other is provided between the battery cavity and the battery cover, and a locking structure capable of limiting the relative rotation of the battery cavity and the battery cover when the battery cover rotates to engage with the battery cavity is provided between the battery cavity and the battery cover.

[0008] When the battery cover is disassembled by adopting the above solution, the locking structure needs to be unlocked first to release the rotation restriction of the battery cover. In the unlocked state, the battery cover is rotated to release the clamping connection, and the battery cover can be removed. The removal of the battery cover can be achieved by two independent and combined actions of unlocking and rotating the battery cover to release the clamping connection, which ensures safety and meets the standards of CE certification.

[0009] Preferably, the locking structure includes a locking groove arranged on the battery cover along the depth direction of the battery cavity and an elastic body arranged in the battery cavity, one end of which is partially inserted into the locking groove under normal conditions and the other end located in the locking groove can be deformed to completely detach from the locking groove after being pressurized.

[0010] With the above solution, since the locking groove is set through, when unlocking is required, a tool such as a poking needle or a toothpick is used to drive the elastic body to deform close to the bottom of the battery cavity to disengage from the locking groove. While applying force to keep the elastic body out of the locking groove, the battery cover is rotated so that the locking groove and the elastic body are misaligned, and the upper end surface of the elastic body abuts against the bottom of the battery cover to maintain the deformed state. At this time, the tool can be removed to continue to rotate the battery cover until the engagement is released, and the battery cover is removed to complete the disassembly. Conversely, when the battery cover is assembled, the battery cover is placed in the battery cavity, the locking groove and the elastic body are in a misaligned state, and the elastic body is deformed close to the bottom of the battery cavity under the pressure of the battery cover until the battery cover is rotated to engage with the battery cavity and the locking groove is directly opposite to the elastic body. After the resistance on the elastic body disappears, the elastic body rebounds and resets to the insertion locking groove to limit the rotation of the battery cover.

[0011] Preferably, a slot for facilitating the insertion of an external tool is concavely provided on one end of the elastic body that cooperates with the locking groove.

[0012] With the above solution, the slot is used for inserting tools such as a poking pin or a toothpick and prevents the tool from slipping when applying force.

[0013] Preferably, the rotating clamping structure includes a clamping block protruding from the bottom of the battery cover and an arc-shaped convex ridge protruding from the inner ring wall of the battery cavity, on the lower end surface of which the horizontal section of the clamping block can be pressed.

[0014] With the above solution, when the battery cover is placed in the battery cavity, the clamping block and the arc-shaped ridge are misaligned, and the clamping block is inserted into the battery cavity as the battery cover is inserted, and after rotating a certain angle, it engages with the arc-shaped ridge to realize the clamping connection between the battery cover and the battery cavity. Conversely, when the battery cover is rotated until the clamping block and the arc-shaped ridge are disengaged, the battery cover can be taken out smoothly.

[0015] Preferably, a battery compartment is provided in the battery cavity, a limiting through slot for a limited button battery vertically penetrates the battery compartment, and an escape space is provided between the battery compartment and the battery cavity for a card block to be vertically inserted and rotated.

[0016] With the above solution, the button battery can be placed in the limiting slot of the battery compartment to limit its movement in the battery cavity. The avoidance space ensures that the card block can be smoothly inserted into the battery cavity and rotated to engage with the arc-shaped convex ridge.

[0017] Preferably, the elastomer is arranged on the battery compartment, and an avoidance groove is vertically penetrated on the battery compartment for elastic deformation of the elastomer. A limiting plate is provided in the battery cavity to limit the elastomer from continuing to deform after it deforms toward the bottom of the battery cavity and disengages from the locking groove.

[0018] With the above solution, the through groove is avoided to ensure that the elastomer can deform smoothly. When an external force is applied to the elastomer, the degree of deformation of the elastomer cannot be intuitively shown. Therefore, a limiting plate is provided. After the elastomer deforms to abut against the limiting plate, a resistance is generated and it no longer deforms towards the bottom of the battery cavity, preventing the elastomer from excessive deformation that may cause it to not fully rebound or break, thus extending the service life of the elastomer. In addition, at this time, it can be judged that the elastomer is disengaged from the locking groove, and the battery cover can be rotated for disassembly.

[0019] Preferably, after the battery cover and the housing are assembled, their upper end faces are flush. A groove for facilitating the rotation of the battery cover is recessed on the upper end face of the battery cover.

[0020] With the above solution, while ensuring aesthetics, there are force application points for facilitating the rotation of the battery cover.

[0021] Since the present utility model adopts the above technical solutions, it has remarkable technical effects: When disassembling the battery cover, first, a tool such as a thimble or a toothpick needs to be inserted into the slot to drive the elastomer to deform until it disengages from the locking groove. While maintaining the state where the elastomer is disengaged from the locking groove, rotate the battery cover to misalign the locking groove and the elastomer. The upper end face of the elastomer abuts against the bottom of the battery cover to maintain the deformed state. At this time, remove the tool and then continue to rotate the battery cover until the engagement with the battery cavity is released, and the battery cover is removed to complete the disassembly. The disassembly of the battery cover can be achieved by two independent and combined actions: driving the elastomer to deform and rotating the battery cover to release the engagement, ensuring safety and meeting the standards in the CE certification. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic view when the battery cover is assembled on the housing in a connection structure for improving the disassembly safety of the battery cover in the embodiment Figure 1 ;

[0023] Figure 2 is Figure 1 an enlarged view of B in

[0024] Figure 3 is a partial enlarged view when the battery cover is unlocked and the engagement is released in a connection structure for improving the disassembly safety of the battery cover in the embodiment;

[0025] Figure 4 is Figure 1 a cross-sectional view taken along line A - A in

[0026] Figure 5 is Figure 4 an enlarged view of C in

[0027] Figure 6 is a schematic view when the battery cover is assembled on the housing in a connection structure for improving the disassembly safety of the battery cover in the embodiment Figure 2;

[0028] Figure 7 is Figure 6 A sectional view taken along line D-D in

[0029] Figure 8 is Figure 7 An enlarged view at position E in

[0030] Figure 9 is the disassembly of a connection structure for improving the disassembly safety of the battery cover in the embodiment Figure 1 ;

[0031] Figure 10 is the disassembly of a connection structure for improving the disassembly safety of the battery cover in the embodiment Figure 2 ;

[0032] Figure 11 is Figure 10 An enlarged view at position F in

[0033] The names of the parts referred to by each numerical label in the above drawings are as follows: 1, battery cavity; 2, housing; 3, battery cover; 4, arc-shaped convex rib; 5, clamping block; 501, connecting section; 502, horizontal section; 6, clamping groove; 7, locking groove; 8, elastic body; 9, limiting plate; 10, battery compartment; 11, avoidance space; 12, avoidance through groove; 13, slot; 14, groove; 15, baffle; 16, button battery; 17, limiting through groove. Detailed implementation manners

[0034] The present utility model will be further described in detail below in conjunction with the drawings and embodiments.

[0035] Embodiment

[0036] A connection structure for improving the disassembly safety of the battery cover, referring to Figures 1 to 11 , includes a housing 2, a battery cavity 1 is provided on the housing 2, and the battery cavity 1 in this embodiment is circular. A battery compartment 10 is fixedly provided in the battery cavity 1, and a limiting through groove 17 for limiting the button battery 16 runs vertically through the battery compartment 10. The vertical direction in this embodiment is along the depth direction of the battery cavity 1. It further includes a battery cover 3 that can open or close the battery cavity 1, and a rotary clamping structure that can achieve clamping or release of clamping as the two rotate relative to each other is provided between the battery cavity 1 and the battery cover 3.

[0037] The rotation and snap - fit structure includes a snap - block 5 protruding from the bottom of the battery cover 3. The bottom of the battery cover 3 is the side close to the bottom of the battery chamber 1. The snap - block 5 includes a connecting section 501 vertically protruding from the bottom of the battery cover 3 and a horizontal section 502 fixedly arranged at the end of the connecting section 501 away from the battery cover 3 and parallel to the bottom of the battery cover 3. A slot 6 is formed between the horizontal section 502 and the bottom of the battery cover 3. An arc - shaped convex rib 4 protrudes from the inner circumferential wall of the battery chamber 1, and the arc - shaped convex rib 4 is concentric with the battery chamber 1. When the battery cover 3 is placed into the battery chamber 1, the snap - block 5 and the arc - shaped convex rib 4 are misaligned. As the battery cover 3 is inserted into the battery chamber 1, the upper end face of the arc - shaped convex rib 4 fits against the bottom of the battery cover 3 to limit the further insertion of the battery cover 3 into the battery chamber 1. Then, after the snap - block 5 rotates with the battery cover 3 by a certain angle, the arc - shaped convex rib 4 slides into the slot 6 for snap - fit. The lower end face of the arc - shaped convex rib 4 abuts against or has a clearance fit with the upper end face of the horizontal section 502, realizing the snap - connection between the battery cover 3 and the battery chamber 1. The lower end face of the arc - shaped convex rib 4 is the side close to the bottom of the battery chamber 1, the upper end face of the arc - shaped convex rib 4 is the side away from the bottom of the battery chamber 1, and the upper end face of the horizontal section is the side away from the bottom of the battery chamber 1. In this embodiment, two groups of snap - blocks 5 and arc - shaped convex ribs 4 are arranged at intervals along the circumferential direction of the battery compartment 10. There is a relief space 11 between the battery compartment 10 and the battery chamber 1 for the snap - block 5 to be vertically inserted and rotated.

[0038] After the battery cover 3 and the housing 2 are assembled, their upper end faces are flush. A groove 14 for facilitating the rotation of the battery cover 3 is recessed on the upper end face of the battery cover 3. The upper end faces of the battery cover 3 and the housing 2 are the sides away from the bottom of the battery chamber 1 respectively.

[0039] A locking structure is provided between the battery chamber 1 and the battery cover 3 to limit the relative rotation between the two after the battery cover 3 rotates to the position where the snap - block 5 and the arc - shaped convex rib 4 are snap - connected.

[0040] The locking structure includes a locking groove 7 penetrating through the battery cover 3 along the depth direction of the battery chamber 1. An elastic body 8 is arranged on the battery compartment 10. In the normal state, one end of the elastic body 8 is partially inserted into the locking groove 7 to limit the relative rotation of the battery cover 3 with respect to the battery chamber 1. After the end of the elastic body 8 located in the locking groove 7 is pressed, it can deform to completely disengage from the locking groove 7 to achieve unlocking. A relief through - groove 12 for the elastic deformation of the elastic body 8 is vertically penetrated on the battery compartment 10. A limiting plate 9 is arranged below the battery compartment 10 in the battery chamber 1. When the elastic body 8 deforms towards the bottom of the battery chamber 1 until it disengages from the locking groove 7 and abuts against the limiting plate 9, the limiting plate 9 limits the further deformation of the elastic body 8.

[0041] The elastic body 8 is recessed with a slot 13 on the side away from the bottom of the battery chamber 1 to facilitate the insertion of external tools.

[0042] A baffle 15 is provided on the clamping block 5 to limit the further rotation of the battery cover 3 when the battery cover 3 rotates until the arc-shaped convex rib 4 slides into the clamping groove 6 and the locking groove 7 and the elastic body 8 are aligned. When disassembling the battery cover 3, it is necessary to rotate the battery cover 3 in the reverse direction until the arc-shaped convex rib 4 slides out of the clamping groove 6, and the arc-shaped convex rib 4 is disengaged from the clamping block 5 to release the clamping connection.

[0043] When assembling the battery cover 3, the clamping block 5 and the arc-shaped convex rib 4 are misaligned, and the locking groove 7 and the elastic body 8 are misaligned. The clamping block 5 is vertically inserted into the battery chamber 1 along with the battery cover 3. At this time, the opening on the side of the clamping block 5 away from the baffle 15 is aligned with the arc-shaped convex rib 4. The elastic body 8 deforms towards the bottom of the battery chamber 1 under the extrusion of the battery cover 3. Rotate the battery cover 3 so that the arc-shaped convex rib 4 slides into the clamping groove 6 to achieve clamping connection, and the locking groove 7 and the elastic body 8 are aligned. At this time, the resistance on the elastic body 8 disappears, and the elastic body 8 rebounds and resets to insert into the locking groove 7 to limit the rotation of the battery cover 3.

[0044] When disassembling the battery cover 3, insert a poking needle or toothpick into the slot 13, apply force to drive the elastic body 8 to deform towards the bottom of the battery chamber 1 to disengage from the locking groove 7. While keeping the elastic body 8 disengaged from the locking groove 7, rotate the battery cover 3 in the reverse direction to misalign the locking groove 7 and the elastic body 8. The upper end surface of the elastic body 8 away from the bottom of the battery chamber 1 abuts against the bottom of the battery cover 3 to maintain the deformed state of the elastic body 8. At this time, remove the tool and then continue to rotate the battery cover 3 until the arc-shaped convex rib 4 disengages from the clamping groove 6, that is, the clamping block 5 and the arc-shaped convex rib 4 are disengaged to release the clamping connection, and the battery cover 3 can be removed to complete the disassembly.

[0045] The above is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, several improvements and refinements made without departing from the principle of the present invention should also be regarded as within the protection scope of the present invention.

Claims

1. A connection structure for improving the disassembly safety of a battery cover, comprising a housing (2) recessed with a battery chamber (1) and a battery cover (3) that can open or close the battery chamber (1). A rotary latching structure is provided between the battery chamber (1) and the battery cover (3), which can achieve latching or unlocking of the latching as the two rotate relative to each other. It is characterized in that: A locking structure is provided between the battery cavity (1) and the battery cover (3) for limiting the relative rotation of the two when the battery cover (3) is rotated to engage with the battery cavity (1).

2. The connection structure for improving the disassembly safety of the battery cover according to claim 1, wherein: The locking structure comprises a locking groove (7) which is arranged on the battery cover (3) and penetrates through the depth direction of the battery cavity (1), and an elastic body (8) which is arranged in the battery cavity (1) and has one end partially inserted into the locking groove (7) in a normal state and one end located in the locking groove (7) which can be deformed to completely detach from the locking groove (7) after being pressed.

3. The connection structure for improving the disassembly safety of the battery cover according to claim 2, characterized in that: A slot (13) for facilitating the insertion of an external tool is concavely provided on one end of the elastic body (8) that cooperates with the locking groove (7).

4. The connection structure for improving the disassembly safety of the battery cover according to claim 2, characterized in that: The rotary clamping structure comprises a clamping block (5) protruding from the bottom of the battery cover (3) and an arc-shaped convex ridge (4) protruding from the inner ring wall of the battery cavity (1) and capable of pressing a horizontal section (502) of the clamping block (5) against its lower end surface.

5. The connection structure for improving the disassembly safety of the battery cover according to claim 4, wherein: A battery compartment (10) is arranged in the battery cavity (1), a limiting through slot (17) for a limiting button battery (16) vertically penetrates the battery compartment (10), and an escape space (11) is provided between the battery compartment (10) and the battery cavity (1) for a card block (5) to be vertically inserted and rotated.

6. The connection structure for improving the disassembly safety of the battery cover according to claim 5, characterized in that: The elastic body (8) is arranged on the battery compartment (10), and a through groove (12) for allowing the elastic body (8) to elastically deform is vertically penetrated on the battery compartment (10), and a limiting plate (9) is arranged in the battery cavity (1) to limit the elastic body (8) from further deformation after it deforms toward the bottom of the battery cavity (1) and is separated from the locking groove (7).

7. The connection structure for improving the disassembly safety of the battery cover according to claim 1, wherein: After the battery cover (3) and the housing (2) are assembled, their upper end surfaces are flush with each other, and the upper end surface of the battery cover (3) is concavely provided with a groove (14) for facilitating the rotation of the battery cover (3).

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