Connection elastic piece and electrode connection structure

Abstract

A connection elastic piece and an electrode connection structure. The connection elastic piece comprises a fixing frame (1) and an elastic arm (2) connected to each other; one end of the elastic arm (2) is fixedly connected to the fixing frame (1), while the other end of the elastic arm (2) is provided with an abutting part (3), the abutting part (3) being used for abutting against an electrode; the abutting part (3) comprises a press-contact protrusion block (31) and a hook arm (32), the press-contact protrusion block (31) being arranged on the outer side of the hook arm (32); the hook arm (32) is bent inwards to extend; the hook arm (32) comprises, successively connected, a first inclined arm (321), a first arc-shaped bent arm (322) and a second inclined arm (323); the first inclined arm (321) is connected to the elastic arm (2); the first inclined arm (321) is inclined outwards; the first arc-shaped bent arm (322) is bent inwards; the second inclined arm (323) is inclined inwards; the first inclined arm (321), the first arc-shaped bent arm (322) and the second inclined arm (323) are successively connected to form a hook shape; the press-contact protrusion block (31) extends in the extension direction of the hook arm (32); the horizontal and vertical heights of the press-contact protrusion block (31) are smoothly and gradually changed, such that the electrode to be connected is easier to assemble, enhancing clamping firmness.

Description

A connecting spring and electrode connection structure Technical Field

[0001] This application relates to the field of spring connector technology, and in particular to a connection structure for connecting springs and electrodes. Background Technology

[0002] Connecting springs are components used in electronic devices to connect different electronic components or circuit boards. They are typically made of conductive materials and can vary in shape and size to suit different application requirements. In electronic devices, the function of connecting springs is to ensure the smooth flow of current, thereby enabling signal transmission and energy conversion between electronic components. Connecting springs are indispensable components in fields such as medical devices, communication equipment, computer hardware, and automotive electronics.

[0003] To form a stable electrical connection, the contact area between the connecting spring and the electrode is relatively large, allowing for better pressure against the electrode surface. However, this large contact area may damage the surface of the electrode to be connected. Furthermore, a large contact area in a connection structure composed of multiple connecting springs may make it difficult to insert the electrode, hindering assembly. Therefore, reducing the contact area of ​​the connecting spring's contact portion to ensure a stable electrical connection between the connecting spring and the electrode while facilitating assembly is a pressing issue.

[0004] Application content

[0005] In view of this, the purpose of this application is to solve the problem of how to form a stable electrical connection between the connecting spring and the electrode and facilitate assembly, and to provide a connecting spring and electrode connection structure.

[0006] This application provides the following technical solution:

[0007] In a first aspect, this application provides a connecting spring, including a fixed frame and an elastic arm connected to each other, one end of the elastic arm being fixedly connected to the fixed frame, and the other end of the elastic arm being provided with an abutment portion for abutting a connecting electrode;

[0008] The contact part includes a pressing protrusion and a hook arm, the pressing protrusion being disposed on the outside of the hook arm; the hook arm is bent inward and extends inward.

[0009] Preferably, the hook arm includes a first inclined arm, a first arc-shaped bent arm, and a second inclined arm connected in sequence. The first inclined arm is connected to the elastic arm. The first inclined arm is inclined outward, the first arc-shaped bent arm is bent inward, and the second inclined arm is inclined inward. The first inclined arm, the first arc-shaped bent arm, and the second inclined arm are connected in sequence to form a hook shape.

[0010] The pressure-sensitive protrusion is disposed on the outer side of the first inclined arm, the first arc-shaped bent arm, and the second inclined arm; the pressure-sensitive protrusion extends along the extending direction of the hook arm. The specific location of the pressure-sensitive protrusion...

[0011] Preferably, the second inclined arm is inclined toward the fixing frame, and the ends of the second inclined arm away from the first arc-shaped bent arm are chamfered on both sides. This serves as a stop, preventing hooking and excessive bending that could damage the circuit board.

[0012] Preferably, the middle part of the pressure-contact protrusion in the longitudinal direction protrudes outward to form a pressure-contact beam;

[0013] The height of the pressure contact beam gradually decreases on both sides in the transverse direction; the height of the pressure contact protrusion gradually decreases in the longitudinal direction, with the pressure contact beam as the boundary.

[0014] Preferably, the midpoint of the pressure protrusion in the lateral direction is located within 0 to 20% of the width of the contact portion on both sides of the midpoint in the lateral direction of the contact portion.

[0015] Preferably, the elastic arm includes a second arc-shaped arm, a third oblique arm, a third arc-shaped arm, and a fourth oblique arm connected in sequence; the second arc-shaped arm is connected to the fixing frame, and the fourth oblique arm is connected to the contact part; the second arc-shaped arm bends outward, the third oblique arm extends obliquely upward, the third arc-shaped arm bends inward, and the fourth oblique arm extends obliquely downward.

[0016] Preferably, the width of the end where the fourth oblique arm connects to the third arc-shaped arm gradually decreases from the end where the fourth oblique arm connects to the contact portion.

[0017] Preferably, the fixing frame includes a connecting part, two supporting side walls, and a mounting part; the two sides of the connecting part are respectively connected to the supporting side walls, and the bottom of the supporting side walls is provided with the mounting part; one end of the connecting part is connected to the supporting section.

[0018] Secondly, this application provides an electrode connection structure, including two or more connecting springs as described in the first aspect; at least one of the connecting springs is located on a different side of the electrode to be connected from the other connecting springs.

[0019] Thirdly, this application provides an electrode connection structure, including three or more connecting springs as described in the first aspect above; wherein the three connecting springs constitute a clamping spring group, and the three elastic arms of the clamping spring group are respectively disposed on opposite lateral sides of the electrode to be clamped; the lateral projection portions of the three elastic arms overlap each other; and there is a gap between each pair of the three elastic arms.

[0020] Three connecting springs form a clamping spring group. The first elastic arm is located on one side of the electrode to be clamped, and the second and third elastic arms are located on the other side of the electrode to be clamped. The second, first, and third elastic arms are staggered along the width direction of the connecting springs, and adjacent elastic arms interlock with each other. There is a gap between adjacent elastic arms.

[0021] Compared with the prior art, the beneficial effects of this application are:

[0022] The contact portion of the connecting spring is equipped with a pressure protrusion. The height of the pressure protrusion gradually changes smoothly in both the horizontal and vertical directions, making it easier to insert the electrode to be connected from top to bottom and facilitating assembly. The pressure protrusion is located at the horizontal center of the contact portion, concentrating the force against the electrode, enhancing the clamping firmness, and improving the connection stability between the connecting spring and the bioelectrode. The elastic arm of the connecting spring provides a certain degree of assembly flexibility for the contact portion. At the same time, the end of the elastic arm connected to the fixing frame is provided with a bent portion. The bent portion allows the elastic arm to provide a supporting force on the end connected to the contact portion, preventing excessive deformation of the contact portion and improving the connection stability between the connecting spring and the electrode. The horizontal width of the elastic arm gradually decreases, saving materials and reducing costs.

[0023] In the electrode connection structure, the connecting springs are located on different sides of the electrode to be connected, which improves the connection stability between the connecting springs and the electrode. The elastic arms in the clamping spring group are staggered along the width direction of the connecting springs, and two adjacent elastic arms interlock with each other, which reduces the overall volume of the clamping spring group and makes the electrode connection structure smaller, while improving the connection stability between the connecting springs and the electrode. Attached Figure Description

[0024] Figure 1 is a schematic diagram of a connecting spring sheet according to this application;

[0025] Figure 2 is a schematic diagram of the XZ plane structure of a connecting spring sheet according to this application;

[0026] Figure 3 is a schematic diagram of the XY plane structure of a connecting spring sheet according to this application;

[0027] Figure 4 is a structural schematic diagram of a set of clamping spring clips according to this application;

[0028] Figure 5 is a schematic diagram of an electrode connection structure according to this application, including a set of clamping spring pieces (composed of two connecting spring pieces) for clamping electrodes.

[0029] Figure 6 is a schematic diagram of an electrode connection structure according to this application, including a set of clamping spring pieces (composed of two connecting spring pieces) clamping the electrode at another angle.

[0030] Figure 7 is a schematic diagram of an electrode connection structure according to this application, including a set of clamping spring pieces (composed of three connecting spring pieces);

[0031] Figure 8 is a structural schematic diagram of a connecting spring in its natural state and compressed state according to this application.

[0032] In the diagram: 01-Connecting spring; 02-Clamping spring assembly; 1-Fixing frame; 11-Connecting part; 12-Supporting side wall; 13-Mounting part; 2-Elastic arm; 21-Second arc-shaped arm; 22-Third oblique arm; 23-Third arc-shaped arm; 24-Fourth oblique arm; 3-Contact part; 31-Pressing protrusion; 311-Pressing beam; 32-Hook arm; 321-First oblique arm; 322-First arc-shaped bending arm; 323-Second oblique arm. Detailed Implementation

[0033] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0034] This application provides a technical solution:

[0035] Please refer to Figures 1-7, where Figure 1 is a schematic diagram of a connecting spring. Specifically, this application provides a connecting spring, including a fixed frame 1 and an elastic arm 2 connected to each other. One end of the elastic arm 2 is fixedly connected to the fixed frame 1, and the other end of the elastic arm 2 is provided with an abutting part 3, which is used to abut against the connecting electrode.

[0036] The contact part 3 includes a pressing protrusion 31 and a hook arm 32. The pressing protrusion 31 is disposed on the outside of the hook arm 32; the hook arm 31 is bent inward and extended.

[0037] Specifically, the pressing protrusion 31 in the contact part 3 abuts against the surface of the electrode. The pressing protrusion 31 is located at the transverse center of the contact part 3, so the force abutting against the electrode is more concentrated, which enhances the clamping firmness and improves the connection stability between the connecting spring 01 and the electrode.

[0038] Please refer to Figures 2 and 3. In this embodiment, the hook arm 32 includes a first inclined arm 321, a first arc-shaped bent arm 322, and a second inclined arm 323 connected in sequence. The first inclined arm 321 is connected to the elastic arm 2. The first inclined arm 321 is inclined outward, the first arc-shaped bent arm 322 is bent inward, and the second inclined arm 323 is inclined inward. The first inclined arm 321, the first arc-shaped bent arm 322, and the second inclined arm 323 are connected in sequence to form a hook shape.

[0039] The pressure protrusion 31 is disposed on the outside of the first inclined arm 321, the first arc-shaped bent arm 322 and the second inclined arm 323, and is connected to the electrode to be connected; the pressure protrusion 31 extends along the extension direction of the hook arm 32 and is in the shape of a strip.

[0040] Please refer to Figures 1-3. In this embodiment, the second inclined arm 323 is inclined towards the fixing frame 1, and the ends of the second inclined arm 323 away from the first arc-shaped bent arm 322 are chamfered on both sides. Specifically, the second inclined arm 323 is inclined towards the fixing frame 1 to prevent excessive bending of the pressure contact 3 when it is connected to the electrode, and to prevent it from hooking onto the electrode or other components and damaging other parts.

[0041] Please refer to Figure 3. In this embodiment, the middle part of the pressure protrusion 31 in the longitudinal direction protrudes outward to form a pressure beam 311.

[0042] The height of the pressure contact beam 311 gradually decreases on both sides in the transverse direction; the height of the pressure contact bump 31, with the pressure contact beam 311 as the boundary, gradually decreases in the longitudinal direction; the transverse and longitudinal heights of the pressure contact bumps change smoothly and gradually, making it easier to insert the electrode to be connected from top to bottom and facilitating assembly.

[0043] In this embodiment, the midpoint of the pressure protrusion 31 in the lateral direction is located within 0% to 20% of the width of the contact portion 3 on both sides of the midpoint in the lateral direction of the contact portion 3. The midpoint of the pressure protrusion 31 in the lateral direction being within 0% of the width of the contact portion 3 can be 10% or 20%; specifically, the midpoint of the pressure protrusion 31 in the lateral direction is located at the midpoint in the lateral direction of the contact portion 3, and the pressure protrusion is located at the lateral center of the contact portion, resulting in a more concentrated force on the electrode and enhanced clamping stability.

[0044] In this embodiment, the elastic arm 2 includes a second arc-shaped arm 21, a third inclined arm 22, a third arc-shaped arm 23, and a fourth inclined arm 24 connected in sequence. The second arc-shaped arm 21 is connected to the fixing frame 1, and the fourth inclined arm 24 is connected to the contact part 3. The second arc-shaped arm 21 bends outward, the third inclined arm 22 extends obliquely upward, the third arc-shaped arm 23 bends inward, and the fourth inclined arm 24 extends obliquely downward. The second arc-shaped arm 21 and the third inclined arm 22 form a supporting fixing arm, so that the elastic arm 2 will not be excessively squeezed during assembly, and its height will not be uncontrollable. This provides a certain degree of assembly flexibility for the contact part 3, so that the contact part 3 will not be excessively deformed, and improves the connection stability between the connecting spring 01 and the electrode.

[0045] In this embodiment, the width of the fourth oblique arm 24 gradually decreases from the end where it connects to the third arc-shaped arm 23 to the end where it connects to the contact portion 3. This gradual reduction in width of the fourth oblique arm 24 reduces hardware costs.

[0046] In this embodiment, the fixing frame 1 includes a connecting part 11, two supporting side walls 12 and a mounting part 13; the two sides of the connecting part 11 are respectively connected to the supporting side walls 12, and the mounting part 13 is provided at the bottom of the supporting side walls 12; one end of the connecting part 11 is connected to the supporting section 12.

[0047] Specifically, the support sidewall 12 is bent downwards and extends on both sides of the connecting part 11; the mounting part 13 is bent laterally and extends on the lower part of the support sidewall 12.

[0048] A through groove 131 is provided between the oppositely positioned mounting parts 13 in the lateral direction, and the through groove extends longitudinally through the opposite mounting parts 13. The fixing bracket 1 only needs to be bent to form it, which is convenient for production.

[0049] In this embodiment, the elastic arm 2 is elastic and deformable;

[0050] In its natural state, the contact part 3 is located on the side away from the fixing frame 1;

[0051] In the compressed state, the electrode to be contacted exerts pressure on the contact part 3 in the direction of the fixing frame 1, causing the contact part 3 to bend in the direction of the fixing frame 1. The contact part 3 exerts pressure on the electrode to be contacted in the opposite direction of bending, causing the contact part 3 to contact the electrode. In this embodiment, the contact part 3 bends in the direction of the lower middle part of the fixing frame 1.

[0052] When the contact part 3 returns to its natural state from the compressed state, it loses the pressure of the electrode to be contacted and thus rebounds away from the fixing frame 1 until it returns to the position when the contact part 3 is in its natural state.

[0053] Please refer to Figure 8, which is a structural schematic diagram of the connecting spring in its natural and compressed states according to this application. Specifically, the size of the arch at the top of the elastic arm 2 and the thickness of the elastic arm 2 determine the elastic force of the elastic arm 2. The fixed frame 1 is relatively heavy, so that the center of gravity of the connecting spring 01 is on the fixed frame 1, which will not cause the connecting spring 01 to shift its position when the elastic arm 2 clamps the electrode. Secondly, the fixed frame 1 has a platform at the top, which makes it easier for the fixed frame 1 to be adsorbed and clamped by the production machine in automated assembly production, thereby realizing automated assembly and improving production efficiency.

[0054] Specifically, the pressing protrusion 31 of the contact part 3 is block-shaped, so that the force-bearing area of ​​the contact part 3 is an arc surface, thereby making the contact between the contact part 3 and the bioelectrode more reliable and the contact more controllable relative to the plane.

[0055] Please refer to Figures 1-6. This application provides an electrode connection structure, including two or more connecting springs 01 disclosed in the above embodiments; at least one connecting spring 01 and the other connecting spring 01 are located on different sides of the electrode to be connected.

[0056] Please refer to Figures 1-4 and 7. This application provides an electrode connection structure, including three or more connecting springs 01 disclosed in the above embodiments; wherein the three connecting springs 01 constitute a clamping spring group 02, and the three elastic arms 2 of the clamping spring group are respectively disposed on the opposite lateral sides of the electrode to be clamped; the lateral projection portions of the three elastic arms 2 overlap each other; there is a gap between each pair of the three elastic arms 2.

[0057] Three connecting springs 01 form a clamping spring group 02. The first elastic arm 2 is located on one side of the electrode to be clamped, and the second elastic arm 2 and the third elastic arm 2 are located on the other side of the electrode to be clamped. The second elastic arm 2, the first elastic arm 2 and the third elastic arm 2 are staggered along the width direction of the connecting springs 01, and two adjacent elastic arms 2 interlock with each other; there is a gap between adjacent elastic arms 2.

[0058] In some embodiments, the three elastic arms 2 of the clamping spring assembly 02 for clamping the electrode are elastically and deformably configured.

[0059] In its natural state, the contact parts 3 of the three elastic arms 2 are located on the side away from the corresponding fixed frame 1;

[0060] In the compressed state, the electrode to be contacted exerts pressure on the three contact parts 3 in the direction of the corresponding fixing frame 1, causing the three contact parts 3 to bend in the direction of the corresponding fixing frame 1, and the three contact parts 3 exert pressure on the electrode to be contacted in the opposite direction of bending, so that the three contact parts 3 abut against the electrode respectively.

[0061] When the three contact parts 3 return to their natural state from the compressed state, they lose the pressure of the electrode to be contacted and thus rebound in the direction away from the corresponding fixing frame 1, until they rebound to the corresponding positions when the three contact parts 3 are in their natural state.

[0062] The contact portion of the connecting spring is equipped with a pressure protrusion. The height of the pressure protrusion smoothly and gradually changes in both the horizontal and vertical directions, making it easier to insert the electrode to be connected from top to bottom and facilitating assembly. The pressure protrusion is located at the horizontal center of the contact portion, which concentrates the force against the electrode, enhances the clamping firmness, and improves the connection stability between the connecting spring and the bioelectrode. The elastic arm of the connecting spring provides a certain degree of assembly flexibility for the contact portion. At the same time, the end of the elastic arm connected to the fixing frame is provided with a bent part. The bent part allows the elastic arm to provide a supporting force on the end connected to the contact portion, preventing the contact portion from deforming excessively and improving the connection stability between the connecting spring and the electrode.

[0063] In the electrode connection structure, the connecting springs are located on different sides of the electrode to be connected, which improves the connection stability between the connecting springs and the electrode. The elastic arms in the clamping spring group are staggered along the width direction of the connecting springs, and two adjacent elastic arms interlock with each other, which reduces the overall volume of the clamping spring group and makes the electrode connection structure smaller, while improving the connection stability between the connecting springs and the electrode.

[0064] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A connecting spring, characterized in that, It includes a fixed frame (1) and an elastic arm (2) that are connected to each other. One end of the elastic arm (2) is fixedly connected to the fixed frame (1), and the other end of the elastic arm (2) is provided with a contact part (3) for contacting an electrode. The contact part (3) includes a pressing protrusion (31) and a hook arm (32). The pressing protrusion (31) is disposed on the outside of the hook arm (32). The hook arm (31) is bent inward and extended.

2. The connecting spring as described in claim 1, characterized in that, The hook arm (32) is hook-shaped, and the pressure protrusion (31) extends along the extension direction of the hook arm (32).

3. The connecting spring as described in claim 2, characterized in that, The hook arm (32) is hook-shaped as follows: The hook arm (32) includes a first inclined arm (321), a first arc-shaped bent arm (322), and a second inclined arm (323) connected in sequence. The first inclined arm (321) is connected to the elastic arm (2). The first inclined arm (321) is inclined outward, the first arc-shaped bent arm (322) is bent inward, and the second inclined arm (323) is inclined inward. The first inclined arm (321), the first arc-shaped bent arm (322), and the second inclined arm (323) are connected in sequence in a hook shape.

4. The connecting spring as described in claim 3, characterized in that, The pressure protrusion (31) extends along the extension direction of the hook arm (32) as follows: the pressure protrusion (31) is disposed on the outside of the first inclined arm (321), the first arc-shaped bent arm (322) and the second inclined arm (323).

5. The connecting spring as described in claim 4, characterized in that, The second inclined arm (323) is inclined toward the fixed frame (1), and the ends of the second inclined arm (323) away from the first arc-shaped bent arm (322) are chamfered on both sides.

6. The connecting spring as described in claim 4, characterized in that, The middle part of the pressure contact protrusion (31) in the long direction protrudes outward to form a pressure contact beam (311); The height of the pressure contact beam (311) gradually decreases on both sides in the transverse direction; the height of the pressure contact protrusion (31) gradually decreases in the longitudinal direction with the pressure contact beam (311) as the boundary.

7. The connecting spring as described in claim 6, characterized in that, The midpoint of the pressure protrusion (31) in the lateral direction is located within 0 to 20% of the width of the contact portion (3) on both sides of the midpoint in the lateral direction of the contact portion (3).

8. The connecting spring as described in claim 1, characterized in that, The elastic arm (2) is bent outward and extended downward, and the width of the downward extended portion of the elastic arm (2) gradually decreases.

9. The connecting spring as described in claim 8, characterized in that, The elastic arm (2) is bent outward and extended downward as follows: The elastic arm (2) includes a second arc-shaped arm (21), a third oblique arm (22), a third arc-shaped arm (23), and a fourth oblique arm (24) connected in sequence; the second arc-shaped arm (21) is connected to the fixing frame (1), and the fourth oblique arm (24) is connected to the contact part (3); the second arc-shaped arm (21) bends outward, the third oblique arm (22) extends obliquely upward, the third arc-shaped arm (23) bends inward, and the fourth oblique arm (24) extends obliquely downward.

10. The connecting spring as described in claim 9, characterized in that, The width of the downward extension of the elastic arm (2) gradually decreases as follows: the width from the end where the fourth oblique arm (24) connects to the third arc-shaped arm (23) to the end where the fourth oblique arm (24) connects to the contact part (3) gradually decreases.

11. The connecting spring as described in claim 10, characterized in that, The fixing frame (1) includes a connecting part (11), two supporting side walls (12) and a mounting part (13); the two sides of the connecting part (11) are respectively connected to the supporting side walls (12), and the mounting part (13) is provided at the bottom of the supporting side walls (12); one end of the connecting part (11) is connected to the supporting section (12).

12. The connecting spring as described in any one of claims 1-11, characterized in that, The elastic arm (2) is elastic and deformable; In its natural state, the contact part (3) is located on the side away from the fixing frame (1); In the compressed state, the electrode to be contacted exerts pressure on the contact part (3) in the direction of the fixing frame (1), causing the contact part (3) to bend in the direction of the fixing frame (1). The contact part (3) exerts pressure on the electrode to be contacted in the opposite direction of bending, causing the contact part (3) to contact the electrode. When the contact part (3) returns to its natural state from the compressed state, it loses the pressure of the electrode to be contacted and thus rebounds away from the fixing frame (1) until it returns to the position of the contact part (3) in its natural state.

13. An electrode connection structure, characterized in that, Includes two or more connecting springs (01) as described in any one of claims 1 to 12; at least one of the connecting springs (01) is located on a different side of the electrode to be connected from the other connecting springs (01).

14. An electrode connection structure, characterized in that, Includes three or more connecting springs (01) as described in any one of claims 1 to 12; wherein, the three connecting springs (01) constitute a set of clamping spring groups (02), and at least one set of clamping spring groups (02) is used to clamp an electrode; the elastic arms (2) of the clamping spring groups (02) used to clamp the electrode are located on opposite sides of the electrode to be connected.

15. The electrode connection structure as described in claim 14, characterized in that, The elastic arms (2) of the clamping spring assembly (02) for clamping the electrode are located on opposite sides of the electrode to be connected as follows: the three elastic arms (2) of the clamping spring assembly (02) for clamping the electrode are respectively arranged on opposite sides of the electrode to be clamped in the lateral direction, the first elastic arm (2) is arranged on one side of the electrode to be clamped, and the second elastic arm (2) and the third elastic arm (2) are arranged on the other side of the electrode to be clamped.

16. The electrode connection structure as described in claim 15, characterized in that, The lateral projection portions of the three elastic arms (2) overlap each other.

17. The electrode connection structure as described in claim 16, characterized in that, The lateral projections of the three elastic arms (2) overlap each other as follows: there is a gap between each pair of the three elastic arms (2), and the second elastic arm (2), the first elastic arm (2) and the third elastic arm (2) are staggered along the width direction of the connecting spring (01).

18. The electrode connection structure as described in claim 17, characterized in that, The two adjacent elastic arms (2) interlock with each other, and there is a gap between the adjacent elastic arms (2).

19. The electrode connection structure as described in claim 15, characterized in that, The three elastic arms (2) of the clamping spring assembly (02) for clamping the electrode are elastic and deformable. In its natural state, the contact parts (3) of the three elastic arms (2) are located on the side away from the corresponding fixing frame (1); In the compressed state, the electrode to be contacted exerts pressure on the three contact parts (3) in the direction of the corresponding fixing frame (1), causing the three contact parts (3) to bend in the direction of the corresponding fixing frame (1), and the three contact parts (3) exert pressure on the electrode to be contacted in the opposite direction of bending, so that the three contact parts (3) contact the electrode respectively. When the three contact parts (3) return to their natural state from the compressed state, they lose the pressure of the electrode to be contacted and thus rebound in a direction away from the corresponding fixing frame (1) until they rebound to the corresponding positions of the three contact parts (3) in their natural state.

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