Electrode connection structure, oxygen sensor, engine and vehicle

Abstract

The utility model relates to an electrode connection structure, an oxygen sensor, an engine and a vehicle. The electrode connection structure comprises at least one electrode terminal and a terminal seat. The at least one electrode terminal comprises a terminal part; the terminal seat comprises a first terminal seat, the peripheral side of the first terminal seat is provided with assembling gaps, and each terminal part is clamped into the corresponding assembling gap. The utility model aims to solve the technical problems of complex structure and difficult assembly of the electrode connection structure in the prior art.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronics, and in particular to an electrode connecting structure, an oxygen sensor, an engine and a vehicle. BACKGROUND

[0002] In the related art, a chip electrode and a wire are electrically connected through an electrode connecting device. The electrode connecting device generally includes an electrode terminal and a terminal seat. The electrode terminal is in clamping cooperation with the terminal seat. In order to ensure the stability of the connection, a turning obstacle structure or a limiting structure is often arranged to limit the degrees of freedom of the electrode terminal and the terminal seat in various directions, so that the electrode terminal can be stably clamped in the terminal seat. Such an arrangement results in a complex structure, difficult assembly and high production cost. CONTENT OF THE UTILITY MODEL

[0003] The present application provides an electrode connecting structure, an oxygen sensor, an engine and a vehicle. The present application aims to solve the technical problems of a complex structure and difficult assembly of an electrode connecting structure in the related art.

[0004] In order to achieve the above-mentioned purpose, according to a first aspect of the present application, an electrode connecting structure is provided, comprising:

[0005] at least one electrode terminal, the at least one electrode terminal comprising a terminal portion; and

[0006] a terminal seat comprising a first terminal seat, the first terminal seat being provided with an assembly gap on an outer circumferential side, wherein each terminal portion is clamped into a corresponding assembly gap.

[0007] Optionally, the electrode terminal further comprises at least one limiting portion connected to the terminal portion.

[0008] At least one limiting cavity is formed in the first terminal seat, and at least one limiting portion is accommodated in the corresponding limiting cavity to prevent the corresponding terminal portion from being separated from the corresponding assembly gap.

[0009] Optionally, the terminal portion has a first side and a second side arranged oppositely, and the depth of the second side clamped into the assembly gap is less than the depth of the first side clamped into the assembly gap.

[0010] The limiting portion is connected to the second side.

[0011] Optionally, the limiting portion is a spring piece, and the spring piece is in a curved shape in a natural state.

[0012] Optionally, the spring piece has a bending angle of a, wherein 5°≤a≤25°.

[0013] Optionally, the thickness of the terminal part is H1, and the width of the assembly gap is H2, wherein 1≤H1 / H2≤1.25.

[0014] Optionally, a plurality of the electrode terminals are provided, and a plurality of the assembly gaps are provided on the terminal seat, and the plurality of the electrode terminals are respectively clamped into the plurality of the assembly gaps.

[0015] The opposite two electrode terminals are adapted to clamp the chip to be electrically connected with the chip.

[0016] Optionally, the assembly gap penetrates the end of the first terminal seat, and one end of the terminal part protrudes from the assembly gap to be electrically connected with the chip.

[0017] Optionally, the electrode terminal further comprises a contact part connected to one end of the terminal part and adapted to abut against the chip.

[0018] Optionally, the terminal seat further comprises a second terminal seat mounted on the first terminal seat and provided with a mounting cavity.

[0019] At least a part of the contact part is mounted in the mounting cavity.

[0020] Optionally, the second terminal seat is further provided with at least one limiting hole, and each limiting hole accommodates a corresponding contact part to limit the rotation of the contact part.

[0021] Optionally, the second terminal seat is clamped with the first terminal seat.

[0022] Optionally, one of the second terminal seat and the first terminal seat is provided with at least one clamping protrusion, and the other is provided with at least one clamping groove.

[0023] Each clamping groove is communicated with a corresponding assembly gap, and each clamping protrusion is clamped into a corresponding clamping groove and located on one side of a corresponding terminal part to prevent the corresponding terminal part from being separated from the corresponding assembly gap.

[0024] According to a second aspect of the present application, an oxygen sensor is provided, comprising the electrode connecting structure and the chip.

[0025] According to a third aspect of the present application, an engine is further provided, comprising the oxygen sensor.

[0026] According to a fourth aspect of the present application, a vehicle is further provided, comprising the engine.

[0027] The beneficial effects of the present application are as follows:

[0028] In the technical solution of the present application, the electrode terminal comprises a terminal part, the terminal seat comprises a first terminal seat, the outer circumferential side of the first terminal seat is provided with an assembly slot, each terminal part is clamped to the corresponding assembly slot, so that the electrode terminal is relatively fixed to the first terminal seat, thereby eliminating the turning obstacle structure, the limiting structure and the like in the related art, reducing the assembly difficulty of the electrode terminal and the terminal seat, thereby realizing the simplification of the installation steps, reducing the manufacturing difficulty and saving the cost.

[0029] Other features and advantages of the present application will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the following embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained according to these drawings without creative labor for those skilled in the art.

[0031] In order to more completely understand the present application and its beneficial effects, the following will be described in conjunction with the drawings, wherein the same reference numerals in the following description represent the same parts.

[0032] Figure 1 is a structural schematic view of an embodiment of the electrode connection structure provided by the present application;

[0033] Figure 2 is Figure 1 is an exploded schematic view of the electrode connection structure in the embodiment;

[0034] Figure 3 is Figure 1 is a sectional view of the electrode connection structure in the embodiment;

[0035] Figure 4 is Figure 1 is a structural schematic view of the electrode terminal in the embodiment;

[0036] Figure 5 is Figure 1 is a structural schematic view of the first terminal seat in the embodiment;

[0037] Figure 6 is Figure 1 is a structural schematic view of the first terminal seat and the electrode terminal in the embodiment;

[0038] Figure 7 is Figure 1 is a structural schematic view of the second terminal seat in the embodiment;

[0039] Figure 8 is Figure 4 is a bottom view of the electrode terminal in the embodiment.

[0040] Reference signs:

[0041] 100, electrode connecting structure; 1, electrode terminal; 11, terminal part; 111, first side; 112, second side; 12, limiting part; 13, contact part; 21, first terminal seat; 211, assembly gap; 212, limiting cavity; 213, clamping groove; 22, second terminal seat; 221, mounting cavity; 222, limiting hole; 223, clamping protrusion;

[0042] 200, chip. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person skilled in the art without creative labor are within the protection scope of the present application.

[0044] In the related art, the chip electrode and the wire are electrically connected through an electrode connecting device. The electrode connecting device generally includes an electrode terminal and a terminal seat. The electrode terminal is clamped and matched with the terminal seat. In order to ensure the stability of the connection, a plurality of clamping grooves with different sizes or irregular clamping grooves are generally arranged in the terminal seat, and a corresponding clamping platform is arranged on the electrode terminal, so as to limit the freedom of the electronic terminal in each direction, so that the electrode terminal can be stably clamped in the terminal seat. Such a setting results in a complex structure, difficult assembly, and high production cost.

[0045] In view of this, the present application provides an electrode connecting structure 100, Figures 1 to 7 The electrode connecting structure 100 provided by the present application has the advantages of simple structure, simple assembly, and reduced cost. The electrode connecting structure 100 will be described in detail below with reference to the main drawings.

[0046] According to the first aspect of the present application, with reference to Figure 1 and Figure 2 The present application provides an electrode connecting structure 100, which includes at least one electrode terminal 1 and a terminal seat. The at least one electrode terminal 1 includes a terminal part 11. The terminal seat includes a first terminal seat 21, and the outer circumferential side of the first terminal seat 21 is provided with an assembly gap 211. Each terminal part 11 is clamped into the corresponding assembly gap 211.

[0047] In the technical solution of the present application, the electrode terminal 1 comprises a terminal part 11, the terminal seat comprises a first terminal seat 21, the outer circumferential side of the first terminal seat 21 is provided with an assembly slot, each terminal part 11 is clamped to the corresponding assembly slot 211, thereby relatively fixing the electrode terminal 1 to the first terminal seat 21, thereby eliminating the turning obstacle structure, the limiting structure and the like in the related art, reducing the assembly difficulty of the electrode terminal 1 and the terminal seat, thereby realizing the simplification of the installation steps, reducing the manufacturing difficulty and saving the cost.

[0048] In some embodiments, please refer to Figure 1 and Figure 2 , the terminal seat further comprises a second terminal seat 22, the first terminal seat 21 and the second terminal seat 22 are arranged along the axial direction of the terminal seat, one end of the electrode terminal 1 is fixedly connected to the first terminal seat 21, and the other end of the electrode terminal 1 is fixedly connected to the second terminal seat 22. In this way, the first terminal seat 21 fixes a part of the electrode terminal 1, and the second terminal seat 22 fixes another part of the electrode terminal 1, thereby ensuring the stability of the structure.

[0049] In some embodiments, please refer to Figure 3 and Figure 4 , the electrode terminal 1 comprises a terminal part 11 and a contact part 13 connected to each other, the contact part 13 is arranged at one end of the terminal part 11, the terminal part 11 is fixed to the first terminal seat 21 and the second terminal seat 22, and the contact part 13 is electrically connected to the chip 200.

[0050] In the present embodiment, the second terminal seat 22 is fixedly matched with one end of the terminal part 11 close to the contact part 13, and the first terminal seat 21 is clamped to the other end of the terminal part 11 away from the contact part 13, that is, the first terminal seat 21 is a lower terminal seat, and the second terminal seat 22 is an upper terminal seat.

[0051] It should be noted that the fixing mode of the electrode terminal 1 to the first terminal seat 21 is not limited, as long as the terminal part 11 can be fixed to the first terminal seat 21. In some embodiments, the electrode terminal 1 further comprises at least one limiting part 12 connected to the terminal part 11, and at least one limiting cavity 212 is formed in the first terminal seat 21. In the installation process, the terminal seat enters from the assembly slot 211 on the outer side surface of the first terminal seat 21 until the limiting cavity 212 accommodates the corresponding limiting part 12. At this time, the limiting part 12 is clamped in the limiting cavity 212 and abuts against the cavity wall of the limiting cavity 212, thereby fixing the terminal part 11 to the first terminal seat 21 to prevent the corresponding terminal part 11 from being separated from the corresponding assembly slot 211. In this way, the clamping and fixing of the first terminal seat 21 to the electrode terminal 1 can be realized through the cooperation of the limiting part 12 and the limiting cavity 212, and the structure is simple and the assembly process is simple.

[0052] Specifically, the first terminal seat 21 has a centerline axis, and the specific position of the limiting cavity 212 is not limited as long as it can be clamped and fixed with the limiting part 12. In some embodiments, the limiting cavity 212 is arranged close to the centerline axis of the first terminal seat 21, and the limiting cavity 212 is in communication with the assembly gap 211, so that the limiting part 12 can be clamped in the limiting cavity 212 through the assembly gap 211. In another embodiment, the limiting cavity 212 is arranged close to the outer side wall of the first terminal seat 21, and penetrates the outer side wall of the first terminal seat 21.

[0053] Please continue to refer to Figure 5 In this embodiment, considering the stability of the connection, the limiting cavity 212 is arranged close to the outer side of the first terminal seat 21. Figure 5 The first direction in the first direction is taken as an example, and the second direction is perpendicular to the first direction in the horizontal plane. In the first direction, one side of the limiting cavity 212 is in communication with the assembly gap 211, facilitating the clamping of the limiting part 12 into the limiting cavity, and in the second direction, both ends of the limiting cavity 212 do not penetrate the first terminal seat 21. Such an arrangement is to enable the limiting part 12 to be better clamped in the limiting cavity 212.

[0054] Further, please refer to Figure 3 and Figure 4 In some embodiments, the terminal part 11 has a first side 111 and a second side 112 arranged opposite to each other, the depth of the second side 112 clamped into the assembly gap 211 is less than the depth of the first side 111 clamped into the assembly gap 211; wherein the limiting part 12 is connected to the second side 112. Specifically, during installation, the first side 111 of the terminal part 11 enters the assembly gap 211 first, and as the depth of the second side 112 clamped into the assembly gap 211 increases, the limiting part 12 of the second side 112 enters the limiting cavity 212, and the limiting part 12 is clamped in the limiting cavity 212 and abuts against the cavity wall of the limiting cavity 212. At this time, the first side 111 of the terminal part 11 is also located in the assembly gap 211, thereby completing the fixation of the terminal part 11 and the first terminal seat 21.

[0055] In some embodiments, please refer to Figure 3 Each assembly gap 211 includes two limiting cavities 212 arranged opposite to each other in the axial direction, one limiting cavity 212 penetrates the upper end face of the first terminal seat 21 (close to one end of the second terminal seat 22), and the other limiting cavity 212 penetrates the lower end face of the first terminal seat 21 (away from one end of the second terminal seat 22); correspondingly, the limiting part 12 is provided with two limiting parts 12, and the two limiting parts 12 are clamped in the two limiting cavities 212, thereby achieving the effect of axial limiting.

[0056] It should be noted that the function of the assembly gap 211 is to clamp the fixed terminal part 11, so the size of the assembly gap 211 is generally not too large. In order to facilitate the sliding of the limiting part 12 in the assembly gap 211, in this embodiment, the limiting part 12 is an elastic structure, more specifically, the limiting part 12 is a spring.

[0057] In some embodiments, in a natural state, the spring is curved. Specifically, the limiting portion 12 is bent in a direction away from the contact portion 13 .

[0058] Please continue reading Figure 2 and Figure 3 When the terminal part 11 is clamped in the first terminal seat 21, the limiting part 12 is limited by the size of the assembly gap 211 and undergoes elastic deformation, thereby entering the assembly gap 211 and sliding in the assembly gap 211 until the limiting part 12 enters the limiting cavity 212. The limiting part 12 returns to its original state and abuts against the cavity wall of the limiting cavity 212, completing the fixation of the terminal part 11 and the first terminal seat 21.

[0059] More specifically, see Figure 4 ,by Figure 4 The bending angle of the spring is explained by taking the placement of the electrode terminal 1 as an example. Figure 4 In the figure, the electrode terminal 1 has a first side surface and a second side surface that are arranged opposite to each other, wherein the contact portion 13 is bent and connected to the second side surface, and the spring is bent from the second side surface toward the first side surface. In this way, the bending direction of the spring is opposite to the direction of the contact portion 13. When the contact portion 13 contacts the chip 200, the spring can exert a certain elastic force, so that the contact portion 13 is in close contact with the chip 200.

[0060] In some embodiments, see Figure 8 , the bending angle of the spring is α, where 5°≤α≤25°. Specifically, in this embodiment, α is the angle between the spring and the terminal portion 11. Within the above range, it can be ensured that the spring can easily enter the limiting cavity 212 from the assembly gap 211, and it can also be ensured that the spring can abut against the cavity wall of the limiting cavity 212, thereby fixing the terminal portion 11 in the first terminal seat 21 and preventing the electrode terminal 1 from shaking in the first terminal seat 21.

[0061] In this embodiment, α can be 5°, 6°, 7°, 8.5°, 9.8°, 10°, 11°, 12.5°, 13°, 14°, 15°, 16°, 17°, 20°, 21°, 22°, 23°, 24°, 25° or other unlisted data.

[0062] In some embodiments, the thickness of the terminal portion 11 is H1, and the width of the assembly gap 211 is H2, wherein 1≤H1 / H2≤1.25. Within the above range, the terminal portion 11 can be exactly clamped in the assembly gap 211, so that the elastic sheet abuts against the cavity wall of the limiting cavity 212, so that the terminal portion 11 is relatively fixed with the first terminal seat 21, ensuring that the contact portion 13 of the electrode terminal 1 abuts against the chip 200 tightly, thereby ensuring the stability of the connection.

[0063] In some embodiments, the thickness of the terminal portion 11 is 0.2-0.3 mm, and more specifically, the thickness of the terminal portion 11 can be 0.2 mm, 0.21 mm, 0.22 mm, 0.23 mm, 0.24 mm, 0.25 mm, 0.26 mm, 0.27 mm, 0.28 mm, 0.29 mm, 0.3 mm, or other unlisted data. The size of the assembly gap 211 can be adjusted adaptively according to the thickness of the terminal portion 11.

[0064] In some embodiments, the contact portion 13 is connected to one end of the terminal portion 11 by bending. It should be noted that, in order to ensure the connection effect, the bending direction of the limiting portion 12 is opposite to that of the contact portion 13. The purpose of such arrangement is to generate opposite restoring forces of the contact portion 13 and the limiting portion 12, thereby fixing the terminal portion 11.

[0065] Please continue to refer to Figure 1 and Figure 2 The electrode terminal 1 is provided with a plurality of terminal seats, and the terminal seat is provided with a plurality of assembly gaps 211. The plurality of electrode terminals 1 are clamped into the plurality of assembly gaps 211, respectively. The number of the electrode terminals 1 and the assembly gaps 211 is not limited, and can be selected according to actual conditions.

[0066] It should be noted that the number of the electrode terminals 1 is not limited, and can be set according to the electrode contacts on the chip 200. For example, in some embodiments, the chip 200 is provided with one electrode contact, and the number of the electrode terminals 1 is set to one. The contact piece of the electrode terminal 1 contacts the electrode contact on the chip 200. In some other embodiments, the chip 200 is provided with four electrode contacts, and the number of the electrode terminals 1 is set to four. Each electrode contact corresponds to one electrode terminal 1, so that the contact piece of the electrode terminal 1 contacts the electrode contact on the chip 200.

[0067] In some embodiments, the electrode terminal 1 is provided with two, and the assembly gap 211 is provided with two. The two assembly gaps 211 are formed opposite to each other on the first terminal seat 21. The two electrode terminals 1 are clamped in the two assembly gaps 211, respectively. The chip 200 is clamped between the two electrode terminals 1, and the two electrode terminals 1 opposite to each other are adapted to clamp the chip 200 to be electrically connected with the chip 200.

[0068] In some embodiments, the electrode terminal 1 is provided with four electrode terminals, i.e., a first sub-electrode terminal, a second sub-electrode terminal, a third sub-electrode terminal and a fourth sub-electrode terminal; and the assembly gap 211 is provided with four assembly gaps, i.e., a first sub-assembly gap, a second sub-assembly gap, a third sub-assembly gap and a fourth sub-assembly gap, so as to Figure 5 The first direction is taken as an example, and the second direction is perpendicular to the first direction in the horizontal plane. The first sub-assembly gap and the second sub-assembly gap are oppositely arranged along the first direction, the third sub-assembly gap and the fourth sub-assembly gap are oppositely arranged along the first direction, the first sub-assembly gap and the third sub-assembly gap are oppositely arranged along the second direction, the fourth sub-assembly gap and the second sub-assembly gap are oppositely arranged along the second direction, the first sub-electrode terminal, the second sub-electrode terminal, the third sub-electrode terminal and the fourth sub-electrode terminal are respectively clamped into the first sub-assembly gap, the second sub-assembly gap, the third sub-assembly gap and the fourth sub-assembly gap, the contact part 13 of the first sub-electrode terminal and the contact part 13 of the second sub-electrode terminal are oppositely arranged, the contact part 13 of the third sub-electrode terminal and the contact part 13 of the fourth sub-electrode terminal are oppositely arranged, so that the chip 200 is clamped between the four contact parts 13, the four contact parts 13 clamping and fixing the chip 200, and the four contact parts 13 are electrically connected to the chip 200.

[0069] Please refer to Figure 6 In some embodiments, the terminal seat further comprises a second terminal seat 22, and the second terminal seat 22 is arranged above the first terminal seat 21. The purpose of arranging the second terminal seat 22 is to disperse stress and avoid stress concentration. In order to facilitate the installation of the second terminal seat 22, further, the assembly gap 211 penetrates the end of the first terminal seat 21. In the installation process, the terminal part 11 is clamped into the assembly gap 211 from the side of the first terminal seat 21. After the terminal part 11 is clamped into the first terminal seat 21, one end of the terminal part 11 protrudes out of the assembly gap 211, so as to be electrically connected to the chip 200.

[0070] In some embodiments, please refer to Figure 7 The second terminal seat 22 is provided with a mounting cavity 221, and the contact part 13 is located in the mounting cavity 221. The contact part 13 cooperates with the mounting cavity 221 to fix the chip 200 in the second terminal seat 22.

[0071] In some embodiments, please continue to refer to Figure 7 The mounting cavity 221 penetrates both ends of the second terminal seat 22. After the electrode terminal 1 is installed on the first terminal seat 21 and fixed on the first terminal seat 21, the chip 200 is clamped between the base parts to complete the pre-fixing. The second terminal seat 22 is clamped and cooperated with the contact part 13 by the insertion mode, so as to realize the fixing. In this way, the installation steps are simplified, and the installation efficiency is improved.

[0072] In some embodiments, please refer to Figure 7 The second terminal seat 22 is further provided with at least one limiting hole 222, each limiting hole 222 receiving a corresponding contact part 13 to limit the rotation of the contact part 13. Specifically, when the electrode terminal 1 is clamped in the second terminal seat 22, the contact part 13 abuts against the hole wall of the limiting hole 222, limiting the axial movement of the electrode terminal 1, avoiding the disengagement of the electrode terminal 1 from the chip 200, and improving the stability of the electrode connection structure 100.

[0073] In some embodiments, the second terminal seat 22 is clamped with the first terminal seat 21. In this embodiment, the first terminal seat 21 is provided with a clamping part at one end close to the second terminal seat 22, and the second terminal seat 22 is provided with a clamping matching part at one end close to the first terminal seat 21, the clamping matching part cooperating with the clamping part to relatively fix the first terminal seat 21 and the second terminal seat 22.

[0074] Further, in some embodiments, the clamping part is a clamping groove 213, and the clamping matching part is a clamping protrusion 223, the size of the clamping groove 213 being slightly larger than the size of the clamping protrusion, so that when the electrode connection structure 100 vibrates, the first terminal seat 21 can slightly deviate relative to the second terminal seat 22, thereby eliminating the fatigue stress and avoiding the concentration of fatigue stress, which can cause damage to the electrode terminal 1.

[0075] Further, please refer to Figure 2 Each clamping groove 213 is connected to a corresponding assembly gap 211, and each clamping protrusion 223 is clamped into a corresponding clamping groove 213 and located at one side of a corresponding terminal part 11 to prevent the corresponding terminal part 11 from disengaging from the corresponding assembly gap 211.

[0076] According to a second aspect of the present application, an oxygen sensor is provided, which comprises the electrode connection structure 100 described above. The oxygen sensor has all the beneficial effects of the electrode connection structure 100 described above, which will not be repeated here.

[0077] In some embodiments, the electrode connection structure 100 is provided with four electrode terminals 1, and the oxygen sensor further comprises a chip 200, which is clamped and fixed on the first terminal seat 21 and the second terminal seat 22 by the four electrode terminals 1, and the chip 200 is in contact with the contact part 13 of the four electrode terminals 1, thereby realizing signal transmission.

[0078] According to a third aspect of the present application, an engine is provided, which comprises the oxygen sensor described above. The engine has all the beneficial effects of the oxygen sensor described above, which will not be repeated here.

[0079] According to a third aspect of the present application, a vehicle is provided, which comprises the engine described above, and has all the beneficial effects of the engine described above, which will not be repeated herein.

[0080] The vehicle can be a fuel automobile, a plug-in hybrid electric vehicle, or a new energy vehicle, etc., which is not limited in the present application.

[0081] In the description of the present application, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0082] In the above embodiments, the description of each embodiment has its own emphasis, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0083] The embodiments, implementation manners and related technical features of the present application can be combined, replaced with each other without conflict.

[0084] The above is only the preferred embodiment of the present application, and does not limit the present application in any form. Any simple modification, equivalent change and modification made to the above embodiment without departing from the technical solution of the present application and according to the technical essence of the present application still falls within the scope of the technical solution of the present application.

Claims

1. An electrode connection structure, characterized in that: include: at least one electrode terminal, at least one of the electrode terminals comprising a terminal portion; and The terminal seat comprises a first terminal seat, wherein an assembly gap is provided on the outer peripheral side of the first terminal seat, wherein the terminal portion is snapped into the corresponding assembly gap.

2. The electrode connection structure according to claim 1, characterized in that: The electrode terminal further includes at least one limiting portion connected to the terminal portion; At least one limiting cavity is formed in the first terminal seat, and the at least one limiting cavity accommodates the corresponding limiting portion to prevent the corresponding terminal portion from escaping from the corresponding assembly gap.

3. The electrode connection structure according to claim 2, characterized in that: The terminal portion has a first side and a second side that are arranged opposite to each other, and the depth of the second side inserted into the assembly gap is smaller than the depth of the first side inserted into the assembly gap; Wherein, the limiting portion is connected to the second side.

4. The electrode connection structure according to claim 2, characterized in that: The limiting portion is a spring piece, and in a natural state, the spring piece is curved.

5. The electrode connection structure according to claim 4, characterized in that: The bending angle of the spring is α, wherein 5°≤α≤25°.

6. The electrode connection structure according to claim 1, characterized in that: The thickness of the terminal portion is H1, and the width of the assembly gap is H2, wherein 1≤H1 / H2≤1.

25.

7. The electrode connection structure according to claim 1, wherein: There are a plurality of electrode terminals, and a plurality of assembly slots are provided on the terminal seat, and the plurality of electrode terminals are respectively inserted into the plurality of assembly slots; The two opposite electrode terminals are suitable for clamping the chip to be electrically connected to the chip.

8. The electrode connection structure according to claim 1, wherein: The assembly gap passes through the end of the first terminal seat, and one end of the terminal portion extends out of the assembly gap to be electrically connected to the chip.

9. The electrode connection structure according to claim 8, characterized in that: The electrode terminal further includes a contact portion connected to one end of the terminal portion and adapted to abut against the chip.

10. The electrode connection structure according to claim 9, characterized in that: The terminal base further includes a second terminal base, which is mounted on the first terminal base and is provided with a mounting cavity; Wherein, at least a portion of the contact portion is installed in the installation cavity.

11. The electrode connection structure according to claim 10, characterized in that: The second terminal seat is further provided with at least one limiting hole, and each limiting hole receives the corresponding contact portion to limit the rotation of the contact portion.

12. The electrode connection structure according to claim 10, wherein: The second terminal seat is clamped with the first terminal seat.

13. The electrode connection structure according to claim 12, characterized in that: One of the second terminal base and the first terminal base is provided with at least one snap-fit ​​protrusion, and the other is provided with at least one snap-fit ​​groove; Each of the snap-fitting grooves is connected to the corresponding assembly gap, and each of the snap-fitting protrusions is snapped into the corresponding snap-fitting groove and is located on one side of the corresponding terminal portion to prevent the corresponding terminal portion from escaping from the corresponding assembly gap.

14. An oxygen sensor, characterized in that: The method comprises the electrode connection structure according to any one of claims 1 to 13 and a chip, wherein the chip is in contact with the electrode terminal.

15. An engine, characterized in that: Comprising the oxygen sensor of claim 14.

16. A vehicle, characterized in that: Comprising the engine of claim 15.

Images