Anti-disassembly structure of button cell

Abstract

The invention discloses an anti-disassembly structure of a button battery, which relates to the technical field of battery mounting structures, and comprises a battery door, a shell and a button battery to be used, the battery door is provided with a penetrating type battery groove, and the battery groove achieves double anti-falling protection on the button battery through battery clamping eaves on the front face and the back face and a clamping arm arranged at an opening; the battery door is locked in the horizontal direction through the clamping protruding block of the clamping arm and the thrust block of the shell, the battery door is locked in the vertical direction through the locking cylinder and the locking round hole, and multiple anti-disassembly protection is formed for the button battery. Through a quadruple protection structure of a battery clamping brim, a clamping arm, a clamping convex block and a locking cylinder, all-around anti-falling and anti-dismounting protection is provided from installation of a button battery to assembly and locking of a battery door, the anti-dismounting function of the button battery installation structure is remarkably improved, and the safety and stability of the button battery anti-dismounting structure are remarkably improved; the technical problem that a button cell mounting structure is low in anti-disassembly protection performance is solved.

Description

Technical Field

[0001] The invention relates to the technical field of battery installation structures, and in particular to an anti-disassembly structure for a button battery. Background Art

[0002] Button batteries are widely used in small electronic devices such as watches, remote controls, medical equipment, sensors, etc. due to their small size, light weight and high energy density. However, in many application scenarios, the installation structure of button batteries faces special anti-disassembly requirements, especially in terms of safety, reliability and anti-misoperation.

[0003] Security requirements:

[0004] (1) Child protection: As button batteries can be easily swallowed by children, causing serious accidents such as suffocation or chemical burns, many countries and regions have put forward stricter anti-disassembly requirements for their installation structures, such as the relevant standards of the U.S. Consumer Product Safety Commission (CPSC) and the EU CE certification.

[0005] (2) Risk of electrical short circuit: Accidental battery detachment may cause a short circuit or damage the equipment, so a more stable fixing method is required.

[0006] Reliability requirements:

[0007] (1) Vibration and shock protection: In high-vibration or mobile devices (such as car keys and industrial sensors), the mounting structure of button batteries must be able to resist vibration to prevent the battery from loosening and affecting device functions.

[0008] (2) Long-life application scenarios: For medical devices and industrial equipment, the battery installation structure must remain stable over many years of use while avoiding the influence of the external environment (such as humidity and dust).

[0009] Anti-misoperation requirements:

[0010] (1) Unauthorized disassembly: In certain highly sensitive devices (such as access control cards and electronic tags), preventing unauthorized disassembly is an important design goal.

[0011] (2) User misoperation: The simple and easy-to-disassemble structure may cause the user to damage the device or battery due to incorrect operation.

[0012] The existing button battery installation structure is usually a snap-on structure, which fixes the battery through a plastic or metal snap, and is easy to operate; it is suitable for devices with low protection requirements, such as remote controls and electronic toys.

[0013] There are also structures in which the button battery mounting base is fixed by bolts. A screwdriver is required when removing the mounting base to replace the battery; or the battery is compressed by the rotating base buckle and spring and then the rotating base is rotated to fix the battery. When removing the mounting base to replace the battery, a flat-blade screwdriver or a coin is required to rotate the rotating base to eject the battery. Although this structure has good safety protection, it is not convenient to use.

[0014] The conventional and more frequently used result is a single-sided snap-on structure, such as Figure 1 As shown, there is a latch on one side of the plastic shell, and a latch point protrudes on one side of the battery door. When the battery door is pushed into the plastic shell, the latch point pops up and just gets stuck on the latch of the plastic shell, thereby preventing the battery door from falling off. Although this simple structure can also play the role of installing button batteries and preventing the battery door from falling off; affected by the injection molding process, if the battery door slot tolerance of the plastic shell is slightly larger, and because the battery door is a single-sided latch point structure, after installation, the other side of the single-sided latch point of the battery door is prone to bend outward due to uneven force; when removing the battery door, it is also easy to be unevenly stressed. Not only must the single-sided latch point be pressed to disengage the latch point, but the battery door must also be tightly held to give the battery door an outward pulling force, making it difficult for the user's fingers to exert force and difficult to remove. If necessary, it is also necessary to touch non-matching tools such as toothpicks and screwdrivers, which is inconvenient to use.

[0015] With the diversification of electronic devices and increasingly stringent safety standards, button battery anti-disassembly structures are facing new technical challenges. The existing installation structure has a trade-off between safety, reliability and operational convenience. Future technical research and development directions should focus on the following aspects:

[0016] 1. Improve safety, especially the anti-disassembly design for child protection and misoperation.

[0017] 2. Enhance anti-vibration performance to adapt to complex application environments.

[0018] 3. Optimize the anti-disassembly structure while taking into account the user's maintenance convenience (ease of battery replacement).

[0019] In summary, it is found that the prior art has at least the following technical problems:

[0020] The existing installation structure of button batteries has the technical problem of low anti-disassembly protection. Summary of the invention

[0021] The object of the present invention is to provide a button battery anti-disassembly structure to solve the technical problem that the existing button battery installation structure has low anti-disassembly protection.

[0022] The various technical effects that can be produced by the preferred technical solutions among the various technical solutions provided by the present invention are described in detail below.

[0023] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0024] The present invention provides a button battery anti-disassembly structure, comprising a battery door, a shell and a button battery to be used; a through-type battery slot for accommodating the button battery is provided at one end of one side of the battery door, an embedding opening is provided on one side of the battery slot, and the button battery is inserted into the battery slot from the embedding opening; a plurality of battery clip ridges are provided on the groove edges on the front and back sides of the battery slot, for restraining the front and back sides of the button battery so that the button battery is placed between the front and back sides of the battery slot and does not fall out, thereby realizing the first anti-falling locking protection for the button battery; and a clamping arm is provided at the embedding opening of the battery slot in a direction from the embedding opening to the outside, the The clamping arm is connected to the embedded opening and extends outwardly, and is used for providing a clamping force inward from both sides, so that after the button battery is inserted into the battery slot, the button battery cannot fall out of the embedded opening by itself, thereby realizing a second anti-falling locking protection for the button battery; and a clamping arm is provided at the end of the other side of the battery door, and the clamping arm is provided with two; the two clamping arms are respectively arranged on both sides of the battery door; and the battery door is provided with a fixing block between the two clamping arms, and a locking cylinder is provided in the middle of the fixing block near the battery slot, and the locking cylinder can be elastically displaced up and down; one end of the clamping arm is connected to the main body of the battery door, and the other end is a grip end, which is adjacent to the grip A locking protrusion is provided on the outer side of the handle end; and a door opening is provided on the shell, and thrust blocks are provided on both vertical sides of the door opening; and a locking circular hole is provided at the position of the shell corresponding to the locking cylinder; when the battery door is pushed into the door opening, the two locking arms gradually shrink inwards along with the length of the door opening, and the locking protrusion shrinks and passes through the door opening, and at the same time, the locking cylinder gradually drops downward as the distance after entering the door opening increases, and the locking protrusion first passes over the thrust block and then expands outwards, so that the locking protrusion locks the battery door in the door opening in the horizontal direction, and then the locking cylinder reaches the locking circular hole, and the locking cylinder automatically moves upward The battery door is lifted up and enters into the locking circular hole, so that the locking cylinder locks the battery door in the door opening in the vertical direction; wherein, the vertical locking formed by the locking cylinder and the locking circular hole, and the horizontal locking formed by the positioning protrusion and the thrust block respectively realize the third and fourth anti-falling locking protection for the button battery, and the battery clamping arm are combined to realize the first and second anti-falling locking protection for the button battery on the battery door, and the four-fold protection locking structure is used to install the button battery, install the battery door, remove the battery door and remove the button battery, so as to form all-round anti-disassembly protection for the button battery.

[0025] In one embodiment, the clamping arm includes a contraction section and a guide section, and both ends of the contraction section connect the embedding opening and the guide section; the contraction section is arc-shaped and is used to provide a horizontal clamping force to close the embedding opening, so that the button battery cannot fall out by itself after entering the embedding opening; the guide section is used to guide the button battery to open the contraction section when the button battery is inserted into the embedding opening, so as to convert the horizontal thrust of inserting the button battery into a horizontal expansion force, thereby overcoming the clamping force of the contraction section.

[0026] In one embodiment, the clamping arm includes an outward expansion section and a tail pull section, the two ends of the outward expansion section are respectively connected to the main body of the battery door and the tail pull section, the handle end is arranged at the end of the tail pull section, and the clamping protrusion is arranged on the tail pull section; the outward expansion direction of the outward expansion section and the longitudinal direction of the main body of the battery door are arranged with an outward expansion angle; the tail pull section is parallel to the longitudinal direction of the main body of the battery door.

[0027] In one embodiment, the outward expansion angle is 20-25 degrees.

[0028] In one of the embodiments, a retraction gap is provided between the clamping arm and the fixing block; when removing the battery door, the handle end is held and the clamping arm is retracted inward and enters the retraction gap, so that the clamping protrusion is disengaged from the thrust block.

[0029] In one of the embodiments, a contoured groove is provided in the middle of the fixed block, and the contoured groove is arranged to imitate the arc contour of the battery slot; the two ends of the contoured groove point to the clamping arms on both sides respectively; a force arm block is provided in the contoured groove, and the two ends of the force arm block are connected to the inner sides of the two ends of the contoured groove; the locking cylinder is arranged at the center of the force arm block; deformation grooves are provided on both sides of the locking cylinder, and the direction of the deformation grooves is staggered with the direction of the force arm block; when the locking cylinder is subjected to a vertical downward thrust, the force arm block is deformed from both ends to the center, and the deformation groove weakens the supporting strength of the force arm block on one side of the locking cylinder, increases the central deformation of the force arm block, and thereby increases the displacement amplitude of the rising and falling of the locking cylinder.

[0030] In one of the embodiments, two guide strips are provided on the outer shell, and the guide strips are provided on the surface where the locking circular hole is located, and the two guide strips are respectively provided corresponding to the two deformation grooves; when the battery door is installed, the guide strips penetrate into the deformation grooves to guide the battery door to enter the outer shell in a straight line, so as to avoid the battery door swinging left and right, resulting in reduced smoothness of advancement.

[0031] In one of the embodiments, the shell includes a positive spring sheet; a thrust slope is arranged between the two ends of the positive spring sheet, and the direction of the thrust slope facing the battery door is the front face; the end of the clamping arm is arranged with a first thrust chamfer, and the thrust chamfer is arranged on the surface where the locking cylinder is located; a second thrust chamfer is arranged on the front face, and the second thrust chamfer is pressed together with the first thrust chamfer; when the battery door is pushed toward the positive spring sheet, the first thrust chamfer is gradually pressed together with the front face of the thrust slope, and the thrust slope is pressed downward obliquely by the first thrust chamfer, so that the second thrust chamfer rotates in the direction of the first thrust chamfer, and when the battery door is locked, the second thrust chamfer rotates toward the direction of the first thrust chamfer, and when the battery door is locked, the second thrust chamfer rotates toward the direction of the first thrust chamfer. When the stop cylinder is locked with the locking circular hole, the second thrust chamfer and the first thrust chamfer are parallel to each other and abut against each other; after the battery door is pushed into the door opening, when the back plate locks the battery door, the thrust slope of the positive spring sheet provides the battery door with a horizontal upward thrust through the second thrust chamfer, so that the locking cylinder and the locking circular hole remain fitted, and the positioning protrusion and the stop thrust block remain abutted, thereby enhancing the reliability of the battery door being locked in the door opening; when the battery door is pushed out of the door opening, the second thrust chamfer of the positive spring sheet provides the battery door with a horizontal thrust toward the outside of the door opening, so that when the button battery is removed, the battery door is assisted to pop out.

[0032] In one embodiment, the back side of the thrust slope is provided with a slow-rise section, a wave section, a slight-rise section and a fixed section in sequence in the rearward direction; the second thrust chamfer receives the force of the first thrust chamfer, the thrust slope receives the force of the second thrust chamfer, and the thrust slope moves obliquely downward from the front side to the back side; the slow-rise section converts the oblique downward force of the thrust slope into a horizontal thrust through a gentle slope descending structure from the front side to the wave section; the wave section receives and stores the horizontal thrust transmitted by the slow-rise section through a wavy pleated structure; the slight-rise section converts the force of the wave section into an oblique downward force and transmits it to the fixed section through a slight slope descending structure from the wave section to the fixed section; the fixed section receives the oblique downward force to fasten the positive electrode spring to the back plate.

[0033] In one of the embodiments, a connecting section, a center fulcrum section and a beak section are sequentially arranged in the forward direction of the thrust slope; the connecting section and the beak section are tilted to both sides from the center fulcrum section, and the structure connecting the connecting section and the second thrust chamfer is a concave structure, and the end of the beak section is a downward hooked beak structure; the beak structure at the end of the beak section is used to guide the positive electrode surface of the button battery to slide against the end of the beak section when the battery door is pushed in; and through the continuous warping structure formed by the connecting section, the center fulcrum section and the beak section, the downward pressure of the button battery is transmitted to the thrust slope, giving a pre-tightening force to the second thrust chamfer and the first thrust chamfer.

[0034] The beneficial effects of the present invention are as follows:

[0035] The button battery anti-disassembly structure provided by the present invention realizes multiple protections during the use of the button battery through ingenious design:

[0036] (1) Multiple anti-fall protection: The first protection is to fix the front and back sides of the button battery through the battery clamping eaves structure in the battery slot, limit the battery from falling out on the front and back sides of the battery slot, and provide initial anti-fall protection for the button battery. Secondary protection is to set a clamping arm at the opening of the battery slot to provide clamping force from both sides inward to limit the movement of the battery in the battery slot, further prevent the button battery from falling off by itself, and also keep the button battery fixed in the battery slot. Tertiary protection is to use the locking cylinder on the battery door and the locking hole on the outer shell to achieve vertical locking, effectively preventing the battery door from accidentally loosening in the vertical direction. Fourth protection is to use the positioning protrusion on the clamping arm and the thrust block on the outer shell to achieve horizontal locking of the battery door, ensuring that the battery door and the button battery are stably locked in the outer shell as a whole.

[0037] (2) The difficulty of disassembly is increased and the protection is enhanced: When unlocking the vertical lock between the locking cylinder and the locking hole, it is necessary to use a small round stick to press the locking cylinder so that the locking cylinder drops out of the locking hole. At this time, the fingers of the other hand need to pinch the grip end of the locking arm to make the locking protrusion retract inward and disengage from the thrust block. Only then can the battery door and the button battery be pulled out and unloaded for maintenance and battery replacement. Thanks to the combined locking design of the locking cylinder and the locking hole, the locking protrusion and the thrust block, the button battery is difficult to disassemble without the use of special tools, which effectively prevents children from operating it by mistake and unauthorized disassembly, thereby improving the safety of the equipment.

[0038] (3) Balancing operational convenience and safety: The battery slot, battery clip edge and clamping arm on the battery door are designed to facilitate the installation and fixation of button batteries. At the same time, the four-layer protection structure ensures that the button battery and the battery door are installed in the housing, so that the battery door and the button battery can be firmly fixed, thereby improving the overall reliability of the button battery anti-disassembly structure.

[0039] (4) Adaptability to various usage scenarios: The button battery is provided with a four-layer protection structure through a combined locking method, so that the button battery anti-disassembly structure of the present invention is more suitable for equipment that requires high safety and stability, such as medical equipment, children's toys, smart devices, etc., to meet the requirements of vibration environment and long-term use.

[0040] In summary, the button battery anti-disassembly structure of the present invention significantly improves the protection and reliability of the button battery during use, as well as the convenience of installation and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the implementation mode will be briefly introduced below. Obviously, the drawings described below are only some implementation modes of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0042] Figure 1 It is a structural schematic diagram of an existing button battery installation structure;

[0043] Figure 2 It is a schematic diagram of the assembly structure of the button battery anti-disassembly structure in a top view according to the first embodiment of the present invention;

[0044] Figure 3 is a schematic diagram of the isometric structure of the housing of the first embodiment of the present invention;

[0045] Figure 4 It is a schematic diagram of the assembly structure of the button battery anti-disassembly structure of the first embodiment of the present invention, viewed from above;

[0046] Figure 5 is a bottom view structural diagram of a battery door according to a first embodiment of the present invention;

[0047] Figure 6 is a schematic diagram of the isometric structure of a battery door according to a first embodiment of the present invention;

[0048] Figure 7 It is a schematic diagram of the assembly structure of the button battery anti-disassembly structure in a top view according to the second embodiment of the present invention;

[0049] Figure 8 1 is a front axonometric structural diagram of a positive electrode spring according to a second embodiment of the present invention;

[0050] Fig. 9 1 is a schematic diagram of the bottom isometric structure of the positive electrode spring according to the second embodiment of the present invention.

[0051] The reference numerals are as follows:

[0052] 1. Battery door; 11. Battery slot; 111. Embedded opening; 112. Battery clamping eaves; 12. Clamping arm; 121. Contraction section; 122. Guide section; 123. First thrust chamfer; 13. Clamping arm; 131. Outward expansion section; 132. Tail guide section; 133. Grip end; 134. Clamping convex block; 14. Fixing block; 15. Retraction seam; 16. Profiling groove; 161. Force arm block; 162. Locking cylinder; 163. Deformation groove;

[0053] 2. Shell; 21. Door opening; 211. Thrust block; 22. Locking round hole; 23. Guide strip;

[0054] 3. Button battery;

[0055] 4. Positive spring piece; 41. Thrust slope; 411. Front face; 412. Back face; 42. Second thrust chamfer; 43. Connecting section; 431. Guide groove; 44. Center fulcrum section; 441. Elastic groove; 442. Fulcrum block; 45. Eagle beak section; 46. Slow rise section; 47. Wave section; 48. Slight rise section; 49. Fixed section; 491. Fixed hole; 492. Welding point connection point. DETAILED DESCRIPTION

[0056] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0057] A button battery anti-disassembly structure is provided in a specific embodiment, which includes a battery door, a shell and a button battery to be used; the battery door is provided with a through-type battery slot, and the battery slot realizes double anti-falling protection for the button battery through battery clamping edges on the front and back sides and a clamping arm arranged at the opening; the battery door is locked in the horizontal direction through the clamping protrusion of the clamping arm and the thrust block of the shell, and the battery door is locked in the vertical direction through the locking cylinder and the locking hole, thereby forming multiple anti-disassembly protections for the button battery; through the four-fold protection structure of the battery clamping edge, the clamping arm, the clamping protrusion and the locking cylinder, from the installation of the button battery to the assembly and locking of the battery door, all-round anti-falling and anti-disassembly protection is provided, which significantly improves the anti-disassembly function of the button battery installation structure, and the safety and stability of the button battery anti-disassembly structure; effectively solves the technical problem of low anti-disassembly protection of the button battery installation structure.

[0058] In addition, all the contents of the configurations shown in the following embodiments are not necessarily limited to the solutions of the invention described in the claims.

[0059] The first embodiment of the button battery anti-disassembly structure is as follows: Figures 2 to 6As shown, it includes a battery door 1, a shell 2 and a button battery 3 to be used; a through-type battery slot 11 for accommodating the button battery 3 is provided at one end of one side of the battery door 1, and an embedding opening 111 is provided on one side of the battery slot 11, and the button battery 3 is inserted into the battery slot 11 from the embedding opening 111; the groove edges on the front and back sides of the battery slot 11 are provided with a plurality of battery clip ridges 112 for restraining the front and back sides of the button battery 3 so that the button battery 3 is placed between the front and back sides of the battery slot 11 and does not fall out, thereby realizing the first anti-falling locking protection for the button battery 3; and in the battery slot 1 1, a clamping arm 12 is provided along the direction from the embedding opening 111 to the outside, the clamping arm 12 is connected to the embedding opening 111 and extends outward, and is used to provide a clamping force from both sides inward, so that the button battery 3 cannot be automatically removed from the embedding opening 111 after the button battery 3 is inserted into the battery slot 11, thereby realizing a second anti-falling locking protection for the button battery 3; and a clamping arm 13 is provided at the end of the other side of the battery door 1, and the clamping arm 13 is provided with two; the two clamping arms 13 are respectively arranged on both sides of the battery door 1; and the battery door 1 is provided with two clamping arms 13 A fixing block 14 is arranged between the fixing block 14, and a locking cylinder 162 is arranged in the middle of the fixing block 14 near the battery slot 11, and the locking cylinder 162 can be elastically displaced up and down; one end of the clamping arm 13 is connected to the main body of the battery door 1, and the other end is a grip end 133, and a clamping protrusion 134 is arranged on the outer side adjacent to the grip end 133; and a door opening 21 is arranged on the shell 2, and thrust blocks 211 are arranged on both vertical sides of the door opening 21; and a locking circular hole 22 is arranged at a position corresponding to the locking cylinder 162 of the shell 2; when the battery door 1 is pushed into the door opening 21, the two clamping arms 13 enter with it. The length of the door opening 21 gradually shrinks inwards, and the locking protrusion 134 shrinks and passes through the door opening 21. At the same time, the locking cylinder 162 gradually descends downward as the distance after entering the door opening 21 increases. The locking protrusion 134 first passes over the thrust block 211 and then expands outwards, so that the locking protrusion 134 locks the battery door 1 in the door opening 21 in the horizontal direction. Then, the locking cylinder 162 reaches the locking circular hole 22, and the locking cylinder 162 automatically rises and enters the locking circular hole 22, so that the locking cylinder 162 locks the battery door 1 in the door opening 21 in the vertical direction.The vertical locking formed by the locking cylinder 162 and the locking circular hole 22, and the horizontal locking formed by the positioning protrusion 134 and the thrust block 211 respectively realize the third and fourth anti-dropping locking protection of the button battery 3, and the first and second anti-dropping locking protection of the button battery 3 are realized on the battery door 1 by combining the battery clamping eaves 112 and the battery slot 11, and the battery slot 11 and the battery clamping arm 12. The quadruple protection locking structure is used to install the button battery 3, install the battery door 1, disassemble the battery door 1, and disassemble the button battery 3, so as to provide all-round anti-disassembly protection for the button battery 3. ;

[0060] The button battery anti-disassembly structure provided by the present invention realizes multiple protections for the button battery 3 during use through ingenious design:

[0061] (1) Multiple anti-fall protection: The first protection is to fix the front and back sides of the button battery 3 through the battery clamping eaves 112 structure in the battery slot 11, limit the battery from falling out on the front and back sides of the battery slot 11, and provide preliminary anti-fall protection for the button battery 3. Secondary protection is to set a clamping arm 12 at the opening 111 of the battery slot 11 to provide a clamping force from both sides to limit the movement of the battery in the battery slot 11, further prevent the button battery 3 from falling off by itself, and also keep the button battery 3 fixed in the battery slot 11. Third protection is to use the locking cylinder 162 on the battery door 1 and the locking hole 22 of the shell 2 to achieve vertical locking, effectively preventing the battery door 1 from accidentally loosening in the vertical direction. Fourth protection is to achieve horizontal locking of the battery door 1 through the positioning protrusion 134 on the clamping arm 13 and the thrust block 211 on the shell 2, ensuring that the battery door 1 and the button battery 3 are stably locked in the shell 2 as a whole.

[0062] (2) The difficulty of disassembly is increased and the protection is enhanced: when unlocking the vertical lock between the locking cylinder 162 and the locking hole 22, it is necessary to use a small round stick to press the locking cylinder 162 so that the locking cylinder 162 drops out of the locking hole 22. At this time, the fingers of the other hand are required to pinch the grip end 133 of the locking arm 13 so that the locking protrusion 134 retracts inward and disengages from the thrust block 211. Only then can the battery door 1 and the button battery 3 be pulled out and unloaded for maintenance and battery replacement. Thanks to the combined locking design of the locking cylinder 162 and the locking hole 22, the locking protrusion 134 and the thrust block 211, the button battery 3 is difficult to disassemble without the use of special tools, which effectively prevents children from operating it by mistake and unauthorized disassembly, thereby improving the safety of the equipment.

[0063] (3) Convenient operation and safety are taken into consideration: The battery slot 11, battery clip 112 and clamping arm 12 on the battery door 1 are designed to facilitate the installation and fixation of the button battery 3. At the same time, the four-layer protection structure ensures that the button battery 3 and the battery door 1 are installed in the housing 2, so that the battery door 1 and the button battery 3 can be firmly fixed, thereby improving the overall reliability of the button battery anti-disassembly structure.

[0064] (4) Adaptability to various usage scenarios: The button battery 3 is provided with a quadruple protection structure through a combined locking method, so that the button battery anti-disassembly structure of the present invention is more suitable for equipment that requires high safety and stability, such as medical equipment, children's toys, smart devices, etc., to meet the requirements of vibration environment and long-term use.

[0065] In summary, the button battery anti-disassembly structure of the present invention significantly improves the protection and reliability of the button battery 3 during use, as well as the convenience of installation and maintenance.

[0066] As one optional implementation,

[0067] Regarding the structure of the clamping arm 12 and the specific implementation of the first and second anti-drop locking protection of the button battery 3, this embodiment is as follows: Figure 2 and Figure 5 As shown, the clamping arm 12 includes a contraction section 121 and a guide section 122, and the two ends of the contraction section 121 connect the embedding opening 111 and the guide section 122; the contraction section 121 is arc-shaped and is used to provide a horizontal clamping force to close the embedding opening 111, so that the button battery 3 cannot fall out by itself after entering the embedding opening 111; the guide section 122 is used to guide the button battery 3 to open the contraction section 121 when the button battery 3 is inserted into the embedding opening 111, and convert the horizontal thrust of inserting the button battery 3 into a horizontal expansion force to overcome the clamping force of the contraction section 121.

[0068] Regarding the specific structure of the above-mentioned clamping arm 13, this embodiment is as follows: Figure 2 and Figure 3 As shown, the clamping arm 13 includes an outward expansion section 131 and a tail lead section 132, the two ends of the outward expansion section 131 are respectively connected to the main body of the battery door 1 and the tail lead section 132, the handle end 133 is arranged at the end of the tail lead section 132, and the clamping protrusion 134 is arranged on the tail lead section 132; the outward expansion direction of the outward expansion section 131 and the longitudinal direction of the main body of the battery door 1 are arranged with an outward expansion angle; the tail lead section 132 is parallel to the longitudinal direction of the main body of the battery door 1.

[0069] Wherein, the constraint angle of the outward expansion angle is 20-25 degrees.

[0070] Regarding the cooperation between the grip end 133 of the clamping arm 13 and the clamping protrusion 134 when the battery door 1 is unloaded, in order to make the unlocking of the clamping protrusion 134 and the thrust block 211 smoother, this embodiment is shown in FIG. Figure 3 and Figure 5 As shown, a retraction gap 15 is provided between the clamping arm 13 and the fixing block 14 ; when disassembling the battery door 1 , the grip end 133 is held and the clamping arm 13 is retracted inwardly and enters the retraction gap 15 , so that the clamping protrusion 134 is disengaged from the thrust block 211 .

[0071] During use, to unlock the vertical lock between the locking cylinder 162 and the locking hole 22, it is necessary to use a small round stick to press the locking cylinder 162 so that the locking cylinder 162 drops down and escapes from the locking hole 22. At this time, the fingers of the other hand are required to pinch the grip end 133 of the locking arm 13 so that the locking protrusion 134 retracts inward and escapes from the thrust block 211. Only then can the battery door 1 and the button battery 3 be pulled out and unloaded for maintenance and battery replacement.

[0072] Regarding the specific structure of the locking cylinder 162 that can elastically move up and down, this embodiment is as follows: Figure 4 and Figure 5 As shown, a contoured groove 16 is provided in the middle of the fixing block 14, and the contoured groove 16 is arranged to imitate the arc contour of the battery slot 11; the two ends of the contoured groove 16 point to the clamping arms 13 on both sides respectively; a force arm block 161 is provided in the contoured groove 16, and the two ends of the force arm block 161 are connected to the inner sides of the two ends of the contoured groove 16; the locking cylinder 162 is arranged at the center of the force arm block 161; deformation grooves 163 are provided on both sides of the locking cylinder 162, and the direction of the deformation groove 163 is staggered with the direction of the force arm block 161.

[0073] In application, when the locking cylinder 162 is subjected to a vertical downward thrust, the lever arm block 161 is deformed from both ends toward the center, and the deformation groove 163 weakens the supporting strength of the lever arm block 161 on one side of the locking cylinder 162, thereby increasing the central deformation of the lever arm block 161 and increasing the displacement amplitude of the locking cylinder 162 when rising and falling.

[0074] When the battery door 1 is pushed into the door hole 21, in order to improve the smoothness of the battery door 1 being pushed into the door hole 21, improve the smoothness of the alignment between the locking hole 22 and the locking cylinder 162, and improve the fit between the battery door 1 and the housing 2, this embodiment is as follows: Figure 2 and Figure 5As shown, two guide bars 23 are arranged on the outer shell 2, and the guide bars 23 are arranged on the surface where the locking circular hole 22 is located, and the two guide bars 23 are respectively arranged corresponding to the two deformation grooves 163; when the battery door 1 is installed, the guide bars 23 penetrate into the deformation groove 163, and guide the battery door 1 to enter the outer shell 2 in a straight line, so as to avoid the battery door 1 swinging left and right, resulting in reduced smoothness of advancement.

[0075] The second embodiment of the button battery anti-disassembly structure is as follows Figure 7 and Figure 8 As shown, the difference between this embodiment and the first embodiment is that the housing 2 includes a positive spring sheet 4; a thrust slope 41 is provided between the two ends of the positive spring sheet 4, and the direction of the thrust slope 41 toward the battery door 1 is the front face 411; the end of the clamping arm 12 is provided with a first thrust chamfer 123, and the thrust chamfer is provided on the surface where the locking cylinder 162 is located; a second thrust chamfer 42 is provided on the front face 411, and the second thrust chamfer 42 is parallel to the first thrust chamfer When the battery door 1 is pushed toward the positive spring sheet 4, the first thrust chamfer 123 is gradually pressed against the front surface 411 of the thrust slope 41, and the thrust slope 41 is pressed downward obliquely by the first thrust chamfer 123, so that the second thrust chamfer 42 rotates toward the direction of the first thrust chamfer 123, and when the locking cylinder 162 of the battery door 1 is locked with the locking circular hole 22, the second thrust chamfer 42 and the first thrust chamfer 123 are parallel to each other and abutted.

[0076] During application, after the battery door 1 is pushed into the door opening 21, when the back plate locks the battery door 1, the thrust slope 41 of the positive spring piece 4 provides the battery door 1 with a horizontal upward thrust through the second thrust chamfer 42, so that the locking cylinder 162 and the locking circular hole 22 remain fitted, and the positioning protrusion 134 and the thrust block 211 remain in contact, thereby enhancing the reliability of the battery door 1 being locked in the door opening 21; when the battery door 1 is pushed out of the door opening 21, the second thrust chamfer 42 of the positive spring piece 4 provides the battery door 1 with a horizontal thrust toward the outside of the door opening 21, so that when the button battery 3 is removed, the battery door 1 is assisted to pop out.

[0077] In addition, in order to increase the horizontal thrust of pushing out the battery door 1, this embodiment Figure 8As shown, a gentle rising section 46, a wave section 47, a slightly rising section 48, and a fixed section 49 are successively arranged on the back surface 412 of the thrust slope 41 backward; the second thrust chamfer 42 receives the acting force of the first thrust chamfer 123, the thrust slope 41 receives the acting force of the second thrust chamfer 42, and the thrust slope 41 moves obliquely downward from the front surface 411 toward the back surface 412; the gentle rising section 46 converts the obliquely downward force of the thrust slope 41 into a horizontal thrust through a gentle slope descending structure from the front surface 411 to the wave section 47; the wave section 47 is used to receive and store the horizontal thrust transmitted by the gentle rising section 46 through a wavy fold structure; the slightly rising section 48 converts the acting force of the wave section 47 into an obliquely downward force and transmits it to the fixed section 49 through a slightly sloping descending structure from the wave section 47 to the fixed section 49; the fixed section 49 receives the obliquely downward force and fastens the positive electrode elastic piece 4 to the back plate.

[0078] During application, fixing holes 491 and solder joint connection points 492 are provided on the fixed section 49. The fixing holes 491 and the solder joint connection points 492 are provided at both ends in the transverse direction of the fixed section 49. The fixing holes 491 are arranged adjacent to the midline in the length direction of the positive electrode elastic piece 4, and the solder joint connection points 492 are arranged away from the fixing holes 491 and the midline in the length direction of the positive electrode elastic piece 4.

[0079] Among them, in order to make the second thrust chamfer 42 better contact with the first thrust chamfer 123 during the advancement of the battery door 1, and realize the pressing of the battery door 1 and the button battery 3 through the thrust slope 41, this embodiment is as Figure 8 As shown, a connecting section 43, a central fulcrum section 44, and an eagle beak section 45 are successively arranged on the frontward direction of the front surface 411 of the thrust slope 41; the connecting section 43 and the eagle beak section 45 are翘起 from both sides of the central fulcrum section 44. The structure of the connecting section 43 connected to the second thrust chamfer 42 is a concave structure, and the end of the eagle beak section 45 is an eagle beak structure that hooks downward; the eagle beak structure at the end of the eagle beak section 45 is used to guide the positive electrode surface of the button battery 3 to slide against the end of the eagle beak section 45 when the battery door 1 is pushed in; and through the continuous warping structure formed by the connecting section 43, the central fulcrum section 44, and the eagle beak section 45, the downward pressure of the button battery 3 is transmitted to the thrust slope 41, giving a pre-tightening force for the second thrust chamfer 42 and the first thrust chamfer 123 to abut.

[0080] During application, 圼8 and Fig. 9As shown, an elastic groove 441 is provided at the transverse midline of the front side (the side away from the back plate) of the central fulcrum segment 44, and a fulcrum block 442 is provided at the transverse midline of the bottom side (the side facing the back plate) of the central fulcrum segment 44. The elastic groove 441 is used to reduce the thickness of the central fulcrum segment 44 component at the midline to increase the elasticity there. In conjunction with the fulcrum block 442 on the back side 412, when the battery door 1 is pushed in, the positive terminal surface of the button battery 3 first contacts the hawk beak segment 45, and the hawk beak segment 45 transmits downward pressure to the central fulcrum segment 44, and the central fulcrum segment 44 is used to reduce the thickness of the central fulcrum segment 44 component at the midline to increase the elasticity there. 44 transmits an upward force to the connecting section 43. As the battery door 1 is pushed in, the second thrust chamfer 42 of the thrust slope 41 is tilted and pre-combined with the first thrust chamfer 123 of the clamping arm 12 on the battery door 1. The battery door 1 is pushed in again to cause the clamping arm 12 to transmit an oblique downward force to the thrust slope 41, thereby forming a force transfer. Here, the pre-combination of the second thrust chamfer 42 and the first thrust chamfer 123 can cause the deformation of various parts of the positive electrode spring sheet 4 to occur sequentially and more smoothly, thereby forming a preset force transfer, satisfying the push-in locking, power supply, and auxiliary pop-up functions of the battery door 1.

[0081] In addition, in order to allow the connecting section 43, the central fulcrum section 44 and the hawk's beak section 45 to extend to the range of the two guide bars 23 without interfering with the function of the guide bars 23, a guide groove 431 is provided at the position of the connecting section 43 corresponding to the guide bar 23. The guide groove 431 is used to avoid the guide bar 23 and can be used as a positioning aid when the positive electrode spring piece 4 is installed in conjunction with the guide bar 23; the lateral length (width) of the central fulcrum section 44 and the hawk's beak section 45 is less than the spacing distance between the two guide bars 23.

[0082] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described.

Claims

1. A button battery anti-disassembly structure, characterized in that: Includes battery door, housing and button cell battery ready for use; A through-type battery slot for accommodating the button battery is provided at one end of one side of the battery door, and an embedding opening is provided on one side of the battery slot, and the button battery is inserted into the battery slot from the embedding opening; the groove edges on the front and back sides of the battery slot are both provided with a plurality of battery clip ridges for restraining the front and back sides of the button battery, so that the button battery is placed between the front and back sides of the battery slot and does not fall out, thereby realizing the first anti-falling locking protection for the button battery; And at the embedding opening of the battery slot, a clamping arm is provided in the direction from the embedding opening to the outside, the clamping arm is connected to the embedding opening and extends outward, and is used to provide a clamping force inward from both sides, so that after the button battery is inserted into the battery slot, the button battery cannot fall out of the embedding opening by itself, thereby realizing a second anti-falling locking protection for the button battery; A clamping arm is provided at the other end of the battery door, and two clamping arms are provided; the two clamping arms are respectively arranged on both sides of the battery door; The battery door is provided with a fixing block between the two clamping arms, and a locking cylinder is provided in the middle of the fixing block near the battery slot, and the locking cylinder can be elastically displaced up and down; One end of the clamp arm is connected to the main body of the battery door, and the other end is a handle end, and a clamping protrusion is provided on the outer side adjacent to the handle end; A door opening is provided on the shell, and thrust blocks are provided on both vertical sides of the door opening; A locking circular hole is provided at a position of the housing corresponding to the locking cylinder; When the battery door is pushed into the door opening, the two clamping arms gradually shrink inwards along with the length of the door opening, and the clamping protrusion shrinks and passes through the door opening. At the same time, the locking cylinder gradually descends downwards along with the distance after entering the door opening. The clamping protrusion first passes over the thrust block and then expands outwards, so that the clamping protrusion locks the battery door in the door opening in the horizontal direction. Then, the locking cylinder reaches the locking circular hole, and the locking cylinder automatically rises and enters the locking circular hole, so that the locking cylinder locks the battery door in the door opening in the vertical direction. Among them, the vertical locking formed by the locking cylinder and the locking hole, and the horizontal locking formed by the locking protrusion and the thrust block respectively realize the third and fourth anti-falling locking protection for the button battery, and the battery clamping arm and the battery clip are combined to realize the first and second anti-falling locking protection for the button battery on the battery door. The quadruple protection locking structure is used to install the button battery, install the battery door, remove the battery door and remove the button battery, thereby providing all-round anti-disassembly protection for the button battery.

2. The button battery anti-disassembly structure according to claim 1, characterized in that: The clamping arm comprises a contraction section and a guide section, and two ends of the contraction section are connected to the embedding opening and the guide section; The contraction section is arc-shaped and is used to provide a horizontal clamping force to close the embedding opening, so that the button battery cannot fall out by itself after entering the embedding opening; The guide section is used to guide the button battery to open the contraction section when the button battery is inserted into the embedding opening, so as to convert the horizontal thrust of inserting the button battery into a horizontal expansion force to overcome the clamping force of the contraction section.

3. The button battery anti-disassembly structure according to claim 1, characterized in that: The clamping arm comprises an outward expansion section and a tail section, the two ends of the outward expansion section are respectively connected to the main body of the battery door and the tail section, the handle end is arranged at the end of the tail section, and the clamping protrusion is arranged on the tail section; An outward expansion angle is set between the outward expansion direction of the outward expansion section and the longitudinal direction of the main body of the battery door; The tail section is parallel to the longitudinal direction of the main body of the battery door.

4. The button battery anti-disassembly structure according to claim 3, characterized in that: The outward expansion angle is 20-25 degrees.

5. The button battery anti-disassembly structure according to claim 1, characterized in that: A retraction gap is provided between the clamping arm and the fixing block; when disassembling the battery door, the grip end is held and the clamping arm is retracted inwardly and enters the retraction gap, so that the clamping protrusion is separated from the thrust block.

6. The button battery anti-disassembly structure according to claim 1, characterized in that: A profiling groove is provided in the middle of the fixing block, and the profiling groove is arranged to imitate the arc contour of the battery slot; the two ends of the profiling groove point to the clamping arms on both sides respectively; A force arm block is arranged in the profiling groove, and two ends of the force arm block are connected to the inner sides of two ends of the profiling groove; the locking cylinder is arranged at the center of the force arm block; Deformation grooves are provided on both sides of the locking cylinder, and the direction of the deformation grooves is intersected with the direction of the force arm block; When the locking cylinder is subjected to a vertical downward thrust, the lever arm block deforms from both ends toward the center, and the deformation groove weakens the supporting strength of the lever arm block on one side of the locking cylinder, thereby increasing the central deformation of the lever arm block and increasing the displacement amplitude of the locking cylinder when rising and falling.

7. The button battery anti-disassembly structure according to claim 6, characterized in that: Two guide strips are arranged on the housing, the guide strips are arranged on the surface where the locking circular hole is located, and the two guide strips are arranged corresponding to the two deformation grooves respectively; When installing the battery door, the guide bar penetrates into the deformation groove to guide the battery door to enter the housing in a straight line, thereby preventing the battery door from swinging left and right, thereby reducing the smoothness of advancement.

8. The button battery anti-disassembly structure according to claim 1, characterized in that: The housing includes a positive spring sheet; a thrust slope is provided between the two ends of the positive spring sheet, and the thrust slope faces the battery door in a direction of entry; The end of the clamping arm is provided with a first thrust chamfer, and the thrust chamfer is provided on the surface where the locking cylinder is located; a second thrust chamfer is provided on the front surface, and the second thrust chamfer is pressed together with the first thrust chamfer; When the battery door is pushed toward the positive electrode spring sheet, the first thrust chamfer is gradually pressed against the front surface of the thrust slope, and the thrust slope is pressed downward obliquely by the first thrust chamfer, so that the second thrust chamfer rotates toward the direction of the first thrust chamfer, and when the locking cylinder of the battery door is locked with the locking circular hole, the second thrust chamfer and the first thrust chamfer are parallel to each other and abutted; After the battery door is pushed into the door opening, when the back plate locks the battery door, the thrust slope of the positive spring sheet provides a horizontal upward thrust to the battery door through the second thrust chamfer, so that the locking cylinder and the locking circular hole are kept in sleeve engagement, and the positioning protrusion and the thrust block are kept in contact, thereby enhancing the reliability of locking the battery door in the door opening; When the battery door is pushed out of the door opening, the second thrust chamfer of the positive spring sheet provides the battery door with a horizontal thrust toward the outside of the door opening, so as to assist the battery door in ejecting when the button battery is removed.

9. The button battery anti-disassembly structure according to claim 8, characterized in that: The back of the thrust slope is provided with a slow rise section, a wave section, a slight rise section and a fixed section in sequence in the rearward direction; The second thrust chamfer receives the force of the first thrust chamfer, the thrust slope receives the force of the second thrust chamfer, and the thrust slope moves obliquely downward from the front side toward the back side; The gentle rise section converts the downward force of the thrust slope into horizontal thrust through a gentle slope descending structure from the front surface to the wave section; The wave section is used to receive and store the horizontal thrust transmitted by the slow rise section through a wave-like fold structure; The slightly rising section converts the force of the wave section into an oblique downward force and transmits it to the fixed section through a slightly descending structure from the wave section to the fixed section; The fixing section receives the oblique downward force to fasten the positive electrode spring sheet to the back plate.

10. The button battery anti-disassembly structure according to claim 9, characterized in that: The thrust slope is provided with a connecting section, a central fulcrum section and a beak section in sequence in the forward direction of the thrust slope; The connecting section and the beak section are tilted toward both sides from the central fulcrum section, the structure where the connecting section is connected to the second thrust chamfer is a concave structure, and the end of the beak section is a beak structure that hooks downwards; The hawk beak structure at the end of the hawk beak section is used to guide the battery door to be pushed in so that the positive electrode surface of the button battery slides against the end of the hawk beak section; and through the continuous warping structure formed by the connecting section, the central fulcrum section and the hawk beak section, the downward force of the button battery is transmitted to the thrust slope, giving a pre-tightening force to the second thrust chamfer and the first thrust chamfer.

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