Round battery in buckle type connection
The snap-fit circular battery design solves the problem of difficult removal of traditional batteries, enabling convenient replacement without tools and improving the user experience.
Patent Information
- Application Number
- CN202422503825.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-16
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2034-10-16
AI Technical Summary
Traditional round batteries require the use of fingernails or external tools to remove, which is difficult to meet the needs of users who do not have fingernails or tools.
A snap-fit circular battery was designed. By cooperating with the first snap, the protrusion of the positive electrode spring can be pulled to bend the battery when it is replaced, thereby releasing the limiting fixation and making it easy to remove.
It enables easy battery removal without the need for nails or external tools, facilitating battery replacement and improving the user experience.
Smart Images

Figure CN223785208U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of battery technology, and in particular to a snap-fit circular battery. Background Technology
[0002] Round batteries, also known as button batteries, are traditionally installed in electrical products by soldering the base directly onto a PCB board, inserting the round battery into the socket, and then snapping a cover plate into the base. At this point, the cover plate and the top of the round battery are in close contact, and the spring contacts on the cover plate abut against the round battery, so that both the top and bottom of the round battery are in contact with metal spring contacts to form a complete circuit. However, when it is necessary to remove the round battery for replacement, the user needs to use their fingernail or external tools to pry between the base and the outer wall of the round battery to separate the cover plate from the base. This is not convenient for users without fingernails or external tools. Therefore, a snap-fit connection for round batteries is proposed. Utility Model Content
[0003] The purpose of this utility model is to solve any of the problems in the above-mentioned technologies, thereby proposing a snap-fit circular battery, including a base and a negative terminal and a positive terminal disposed on the base. The negative terminal has a negative lead on one side and a negative spring on the other side. The positive terminal has a positive lead on one side and a positive spring on the other side. An opening is provided on the side wall of the base, and a first snap is provided on the side of the opening near the negative terminal.
[0004] Furthermore, the base is provided with second buckles symmetrically on both sides of the top, and the negative and positive terminals are fixed to the base by the second buckles.
[0005] Furthermore, a recessed groove is provided on the base, and the negative electrode spring is inclined upward.
[0006] Furthermore, the negative electrode spring is located in the sinking groove, and negative electrode contacts are symmetrically provided on the top of the negative electrode spring.
[0007] Furthermore, the positive electrode spring is V-shaped, and a protrusion is provided on the top of the positive electrode spring. Pulling the protrusion can bend the positive electrode spring inward.
[0008] Furthermore, a limiting block is symmetrically provided on one side of the top of the positive electrode spring, and a positive electrode contact is provided at the bottom of the limiting block.
[0009] Beneficial effects: This utility model fixes the circular battery to the base by cooperating with the positive electrode spring and the first buckle. When the circular battery needs to be replaced, by pulling the protrusion on the top of the positive electrode spring, the positive electrode spring is bent. The limiting block and the positive electrode contact at the bottom will move away from the top of the circular battery. At this time, the limiting block no longer plays a limiting and fixing role for the circular battery, thus making it easy to remove the circular battery. At the same time, the protrusion is located above the base, making it easy for the user to touch. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model. Figure 1 ;
[0011] Figure 2 This is a schematic diagram of the overall structure of this utility model. Figure 2 ;
[0012] Figure 3 This is a schematic diagram of the negative terminal of this utility model;
[0013] Figure 4 This is a schematic diagram of the positive terminal of this utility model;
[0014] Figure label:
[0015] Base 1; recessed groove 101; opening 102; negative terminal 2; negative lead 201; negative spring 202; negative contact 203; positive terminal 3; positive lead 301; positive spring 302; protrusion 303; limiting block 304; positive contact 305; first latch 4; second latch 5. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0017] The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of the present invention.
[0018] The following describes, with reference to the accompanying drawings, a snap-fit circular battery according to an embodiment of the present invention, such as... Figures 1 to 4As shown, the snap-fit circular battery includes a base 1 and a negative terminal 2 and a positive terminal 3 disposed on the base 1. The negative terminal 2 has a negative lead 201 on one side and a negative spring 202 on the other side. The positive terminal 3 has a positive lead 301 on one side and a positive spring 302 on the other side. An opening 102 is provided on the side wall of the base 1. A first snap 4 is provided on the side of the opening 102 near the negative terminal 2. The side wall of the first snap 4 is inclined.
[0019] Preferably, the base 1 has symmetrical second buckles 5 on both sides of the top, and the negative end 2 and the positive end 3 are both fixed to the base 1 by the second buckles 5.
[0020] Preferably, a recessed groove 101 is provided on the base 1, and the negative electrode spring 202 is inclined upward.
[0021] Preferably, the negative electrode spring 202 is located in the sink trough 101, and the negative electrode spring 202 is symmetrically provided with negative electrode contacts 203 on its top.
[0022] In a specific embodiment: both the positive electrode pin 301 and the negative electrode pin 201 extend to both sides of the bottom of the base 1. The base 1 is fixed to the PCB board by welding the positive electrode pin 301 and the negative electrode pin 201. The positive electrode contact 305 is electrically connected to the PCB board through the positive electrode pin 301, and the negative electrode contact 203 is electrically connected to the PCB board through the negative electrode pin 201. By setting a downward recessed groove 101 on the base 1, and the negative electrode spring 202 is located in the recessed groove 101, after the circular battery is installed in the base 1, the circular battery will press down on the negative electrode spring 202 to bend it into the interior of the recessed groove 101, thereby ensuring the flatness of the interior of the base 1.
[0023] Preferably, the positive electrode spring 302 is V-shaped, and a protrusion 303 is provided on the top of the positive electrode spring 302. Pulling the protrusion 303 can bend the positive electrode spring 302 inward.
[0024] Preferably, a limiting block 304 is symmetrically provided on one side of the top of the positive electrode spring 302, and a positive electrode contact 305 is provided at the bottom of the limiting block 304.
[0025] In a specific embodiment: when fixing the circular battery inside the base 1, one side of the circular battery is inserted under the positive electrode spring 302, and then the other side of the circular battery is pressed down to move it below the first latch 4. At this time, the bottom of the circular battery will make contact with the negative electrode contact 203 on the negative electrode spring 202. During the pressing of the circular battery, the positive electrode spring 302 will be squeezed and bent inward. When the bottom of the circular battery contacts the base 1, the top of the circular battery is fastened by the limiting block 304 on the positive electrode spring 302 and the first latch 4, thereby... When the circular battery is fixed on the base 1, the positive contact 305 at the bottom of the limiting block 304 will make contact with the top of the circular battery and conduct electricity. When the circular battery needs to be removed and replaced, the protrusion 303 on the positive spring 302 is pulled outward to bend the positive spring 302. The positive spring 302 will drive the limiting block 304 on its top side to detach from the top of the circular battery. At this time, the limiting block 304 no longer plays a limiting and fixing role for the circular battery, making it easy to remove the circular battery. At the same time, the protrusion 303 is located above the base 1, making it easy for the user to touch.
[0026] Working principle: In use, the base 1 is soldered and fixed to the PCB board via the positive pin 301 and the negative pin 201. Then, the circular battery is fixed on the base 1. The bottom of the circular battery will make contact with the negative contact 203 on the negative spring 202, and the top of the circular battery will make contact with the positive contact 305. The positive contact 305 is electrically connected to the PCB board through the positive pin 301, and the negative contact 203 is electrically connected to the PCB board through the negative pin 201, thus forming a power supply circuit between the circular battery and the PCB board. When it is necessary to remove and replace the circular battery, by pulling the protrusion 303 on the positive spring 302 outward, the positive spring 302 will bend. The positive spring 302 will drive the limiting block 304 on its top side to detach from the top of the circular battery. At this time, the limiting block 304 no longer plays a limiting and fixing role for the circular battery, making it easy to remove the circular battery. At the same time, the protrusion 303 is located above the base 1, making it easy for the user to touch.
Claims
1. A snap-on connected round battery, characterized by: The utility model relates to a battery terminal, including base (1) and be located on base (1) negative terminal (2) and positive terminal (3), one side of negative terminal (2) is equipped with negative lead (201), and the other side of negative terminal (2) is equipped with negative spring piece (202), one side of positive terminal (3) is equipped with positive lead (301), and the other side of positive terminal (3) is equipped with positive spring piece (302), the side wall of base (1) is equipped with opening (102), and one side of opening (102) is close to negative terminal (2) and is equipped with first buckle (4), The positive spring piece (302) is "V" type, and the top of the positive spring piece (302) is provided with a protrusion (303), and pulling the protrusion (303) can bend the positive spring piece (302) inward.
2. The snap-coupled round battery of claim 1, wherein, The top of the base (1) is symmetrically provided with a second buckle (5) on both sides, and the negative terminal (2) and the positive terminal (3) are clamped and fixed on the base (1) through the second buckle (5).
3. The snap-coupled round battery of claim 1, wherein, The base (1) is provided with a sunken groove (101), and the negative spring piece (202) is arranged upwardly inclined.
4. The snap-coupled round battery of claim 3, wherein, The negative spring piece (202) is located in the sunken groove (101), and the top of the negative spring piece (202) is symmetrically provided with a negative contact (203).
5. The snap-coupled round battery of claim 1, wherein, The top of the positive spring piece (302) is symmetrically provided with a limiting block (304) on one side, and the bottom of the limiting block (304) is provided with a positive contact (305).