Probe structure and laser-assisted sintering equipment with it

Abstract

This invention provides a probe structure and a laser-assisted sintering device having the same. The probe structure is used for bonding with a battery body. The probe structure includes: a first probe arm extending along a first direction; a second probe arm disposed at the end of the first probe arm extending along a second direction, with a first angle between the first and second directions; and multiple bonding bodies disposed on the second probe arm, spaced apart, each bonding body being bonded to the battery body. This application solves the problem in the prior art where the probe structure has a large blocking area around the solder joint, easily leading to poor soldering of the battery cell.

Description

Technical Field

[0001] This utility model relates to the field of battery production technology, and more specifically, to a probe structure and a laser-assisted sintering device having the same. Background Technology

[0002] Currently, the mainstream Topcon battery process has eliminated the SE (Selective Emitter) step, adding LECO (Laser-Assisted Sintering) technology after screen printing and sintering. LECO technology irradiates the battery cell with a localized high-intensity laser while simultaneously applying a reverse voltage of 10V or higher. The resulting localized current of several amperes significantly reduces the contact resistance between the metal and semiconductor. During the laser-assisted sintering process, 12 probes are fixed at the solder joints of the battery cell and a bias voltage is applied.

[0003] However, the existing probes have an excessively large body size when pressed at the solder joint and an excessively high tail after installation. This causes the area around the solder joint to be blocked during laser scanning. The blocked area is not processed by the laser, which can cause poor soldering of the solar cell. Excessively long black lines at the edges and corners can be misjudged as microcracks, affecting the appearance of the solar cell and resulting in poor EL (electroluminescence) appearance. Utility Model Content

[0004] The main objective of this invention is to provide a probe structure and a laser-assisted sintering device having the same, so as to solve the problem that the probe structure in the prior art has a large blocking area around the solder joint, which easily leads to poor soldering of the battery cell.

[0005] To achieve the above objectives, according to one aspect of the present invention, a probe structure is provided for pressing against a battery body to fix the battery body. The probe structure includes: a first probe arm extending along a first direction; a second probe arm disposed at the end of the first probe arm extending along a second direction, with a first angle between the first direction and the second direction; and a pressing body disposed on the second probe arm. There are multiple pressing bodies, which are spaced apart, and each pressing body is attached to the battery body.

[0006] Furthermore, at least a portion of the second probe arm can be flexibly configured.

[0007] Furthermore, the second probe arm extends along a predetermined curved trajectory in the second direction.

[0008] Furthermore, the second probe arm includes: multiple first connecting segments spaced apart along a second direction, with adjacent first connecting segments connected by second connecting segments, the second connecting segments extending along an arc-shaped trajectory; the multiple first connecting segments include a carrier connecting segment, the carrier connecting segment being opposite to the battery body, and each pressing body being disposed on the carrier connecting segment.

[0009] Furthermore, the probe structure also includes: a mounting body disposed on the first probe arm away from the second probe arm, the mounting body extending along a third direction, the third direction having a second included angle with the first direction; a positioning part disposed on the mounting body, at least a portion of the mounting body being installed in the mounting groove of the target support workpiece, and the positioning part being in contact with the groove wall of the mounting groove to position the mounting body.

[0010] Furthermore, the mounting body includes a first body and a second body that are connected to each other, with a third included angle between the first body and the second body. The first probe arm is connected to the second body. The probe structure also includes an elastic component that can be elastically set, with its two ends connected to the first body and the groove wall surface, respectively.

[0011] Furthermore, the second probe arm is provided with a mounting end face opposite to the battery body, and each pressing body is provided on the mounting end face; wherein, each pressing body protrudes from the mounting end face.

[0012] Furthermore, at least a portion of the surface of each pressed body is an arcuate surface; and / or, at least a portion of each pressed body is a hemispherical structure.

[0013] Furthermore, each pressed body is provided with a protective layer, which is attached to the battery body; wherein, the protective layer is one or more of titanium nitride layer, diamond layer, and aluminum oxide layer.

[0014] According to another aspect of the present invention, a laser-assisted sintering apparatus is provided, comprising a probe structure and a laser emitting component, wherein the probe structure is the probe structure described above.

[0015] The probe structure, employing the technical solution of this invention, includes a first probe arm, a second probe arm, and a pressing body. The first probe arm extends along a first direction, the second probe arm extends along a second direction, and the pressing body is disposed on the second probe arm. Multiple pressing bodies are spaced apart, and each pressing body is attached to the battery body. This structural design allows the probe to apply pressure to the battery body more evenly, ensuring the battery remains stable during sintering and is suitable for the production of various batteries. This design not only improves the quality and efficiency of battery sintering but also reduces stress concentration during the fixing process, avoiding damage to the battery surface and extending battery life. Furthermore, by setting an angle between the extending directions of the first and second probe arms, the first probe arm can avoid being above the harpoon structure of the battery cell, allowing it to avoid the welding area and thus preventing the area around the solder joint from being obstructed, preventing the battery body from experiencing poor soldering. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0017] Figure 1 A schematic diagram of an embodiment of the probe structure according to the present invention is shown;

[0018] Figure 2 A schematic diagram of the mounting end face in the probe structure according to the present invention is shown;

[0019] Figure 3 A schematic diagram of the second probe arm in the probe structure according to the present invention is shown;

[0020] Figure 4 A diagram showing the usage state of the probe structure according to the present invention is provided.

[0021] The above figures include the following reference numerals:

[0022] 10. First probe arm; 20. Second probe arm; 201. Mounting end face; 30. Pressing body; 21. First connecting section; 22. Second connecting section; 210. Bearing connecting section; 40. Mounting body; 41. Positioning part; 42. First body; 43. Second body; 50. Elastic component; 31. Protective layer;

[0023] 500, laser; 600, harpoon structure; 700, probe structure. Detailed Implementation

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] As mentioned in the background section, when welding solar cells, probes are needed to assist in pressing the sintering points to sinter the grid lines. Most existing probes are cylindrical in structure, and their volume at the welding point is too large. After installation, the tail of the probe is too high, causing the area around the welding point to be blocked during laser scanning. The blocked area cannot be processed by the laser, resulting in poor welding of the solar cell. Therefore, to address the aforementioned technical problems, the probe structure provided in this application includes a first probe arm 10, a second probe arm 20, and a pressing body 30. The first probe arm 10 extends along a first direction, the second probe arm 20 extends along a second direction, and the pressing body 30 is disposed on the second probe arm 20. This reduces the overall height of the probe structure, and the first probe arm 10 is located above the harpoon structure 600 on the battery cell, thus avoiding the main grid position. During laser scanning, the area around the solder joint will not be obstructed. Furthermore, by improving the existing cylindrical probe with a single arc-shaped contact surface into multiple pressing bodies 30, the contact area with the battery body is reduced, which can further reduce scanning defects caused by light shading and avoid the problem of poor soldering of the battery cell.

[0026] Please refer to Figures 1 to 4 This utility model provides a probe structure for pressing with a battery body. The probe structure includes: a first probe arm 10 extending along a first direction; a second probe arm 20 disposed at the end of the first probe arm 10 extending along a second direction, with a first angle between the first direction and the second direction; and a pressing body 30 disposed on the second probe arm 20. There are multiple pressing bodies 30, which are spaced apart and each pressing body 30 is attached to the battery body.

[0027] The probe structure provided by this utility model includes a first probe arm 10, a second probe arm 20, and a pressing body 30. The first probe arm 10 extends along a first direction, the second probe arm 20 extends along a second direction, and the pressing body 30 is disposed on the second probe arm 20. Multiple pressing bodies 30 are spaced apart and each pressing body 30 is attached to the battery body. This structural design allows the probe to apply pressure to the battery body more evenly, ensuring the battery remains stable during sintering and is suitable for the production of various batteries. This design not only improves the quality and efficiency of battery sintering but also reduces stress concentration during the fixing process, avoids damage to the battery surface, and extends the battery's lifespan. Multiple spaced-apart pressing bodies 30 can apply pressure to the battery body more evenly, ensuring the battery remains stable during laser sintering and avoiding cell warping or displacement caused by uneven pressure distribution. Furthermore, by setting an angle between the extension directions of the first probe arm 10 and the second probe arm 20, the first probe arm 10 can avoid being above the harpoon structure 600 of the battery cell, thus avoiding the welding area and preventing the area around the solder joint from being blocked, preventing the battery body from having poor solder joints. Optionally, the first direction and the second direction are perpendicular to each other, forming an L-shaped probe structure. The L-shaped probe structure ensures that the laser scanning of the battery cell in the LECO process is not blocked, especially by the first probe arm 10 avoiding the welding area and preventing the area around the solder joint from being blocked, thereby preventing the battery body from having poor solder joints. This not only improves sintering quality and reduces the defect rate in EL (Electroluminescence) detection, but also accelerates the laser sintering process and improves production efficiency.

[0028] Specifically, at least a portion of the second probe arm 20 is elastically configured. This elastic configuration allows the probe structure to adapt to minute dimensional changes in the battery body, improving the fixing effect and reducing instability caused by differences in battery size. It is widely used in automated production lines for battery manufacturing. With the addition of the elastic component, the probe structure can automatically adjust the pressing force when dealing with different batches and models of batteries, avoiding over-pressing or under-pressing, and ensuring the uniformity and stability of the battery sintering process. Especially in high-precision battery manufacturing processes, such as cell assembly and packaging, this elastic pressing structure can significantly improve battery yield and reduce waste and defects during production.

[0029] In the embodiments provided in this application, the second probe arm 20 extends along a predetermined curved trajectory in the second direction. This design enables a gentler pressure distribution when the pressing body contacts the battery body, avoiding excessive local pressure that could damage the battery. It is particularly suitable for high-precision, high-requirement battery sintering processes. The curved trajectory design ensures smoother contact between the pressing body and the battery surface, reducing minute displacements during battery sintering and improving the consistency and precision of battery sintering. This design is especially important in the sintering processes of solid-state batteries and fuel cells, as these processes often require more precise control to ensure the integrity of the internal structure and the stability of performance.

[0030] like Figure 3 As shown, the second probe arm 20 includes: multiple first connecting segments 21 spaced apart along a second direction, with adjacent first connecting segments 21 connected by second connecting segments 22 extending along an arc-shaped trajectory; each of the multiple first connecting segments 21 includes a supporting connecting segment 210 opposite to the battery body, and each pressing body 30 is disposed on the supporting connecting segment 210. This structure not only improves the uniformity of pressing but also effectively disperses pressure, preventing battery deformation during the fixing process, and is suitable for pretreatment and post-treatment stages before battery sintering. By placing the pressing body on the supporting connecting segment, it is ensured that the pressure on the battery body is evenly distributed in each stage of battery sintering, avoiding deformation and damage of the battery at high temperatures, and improving the structural stability and electrical performance of the battery.

[0031] The design of the second probe arm 20, with its multiple first connecting segments 21 and arc-shaped extended second connecting segments 22, allows the probe structure to better adapt to minute unevenness or shape changes on the surface of the solar cell, enhancing the probe's flexibility and adaptability. This design ensures stable contact on various solar cells without affecting the accuracy of laser scanning. By forming a specific angle between the first probe arm 10 and the second probe arm 20, and through the special trajectory design of the first connecting segments 21 and 22, the laser can scan the solar cell without obstruction during sintering, effectively avoiding areas around the solder joints and preventing the laser path from being blocked, thereby improving the efficiency and uniformity of laser sintering.

[0032] In its implementation, the probe structure further includes: a mounting body 40, disposed on the first probe arm 10 away from the second probe arm 20, extending along a third direction, with a second included angle between the third direction and the first direction; a positioning part 41 is provided on the mounting body 40, at least a portion of the mounting body 40 is installed in the mounting groove of the target support workpiece, and the mounting body 40 is positioned by the positioning part 41 fitting against the groove wall. This positioning method ensures accurate installation of the probe structure, improves the precision of battery sintering, and is suitable for precision machining processes in battery manufacturing. Accurate positioning not only ensures stable operation of the probe structure in the sintering equipment but also improves the precision and consistency of battery sintering, reducing battery performance fluctuations caused by installation errors. The mounting body 40 achieves precise installation of the probe structure by fitting against the mounting groove wall of the target support workpiece through the positioning part 41. The design of the positioning part 41 ensures accurate alignment of the probe structure during installation, reducing installation errors. Optionally, the positioning part 41 is a positioning protrusion, and a positioning groove is provided on the groove wall of the mounting groove. The positioning protrusion is inserted into the positioning groove, so as to position the mounting body 40.

[0033] The mounting body 40 includes a first body 42 and a second body 43 connected to each other, with a third included angle between them. A first probe arm 10 is connected to the second body 43. The probe structure also includes an elastic component 50, which is elastically positioned, with its two ends connected to the first body 42 and the groove wall, respectively. The addition of the elastic component 50 allows the probe structure to automatically adjust pressure when fixing the battery, making it suitable for sintering and fixing batteries of different batches and models, thus improving the flexibility and efficiency of the production line. The introduction of the elastic component not only increases the adaptability of the probe structure but also improves its operational efficiency on automated production lines, reducing downtime and adjustment time during battery sintering, making it suitable for large-scale production environments. Optionally, the elastic component 50 is a spring.

[0034] The third included angle design between the first body 42 and the second body 43 allows the first probe arm 10 to be precisely positioned above the harpoon structure of the solar cell, avoiding obstruction of the welding area and ensuring uniform energy distribution during laser sintering. Simultaneously, the two ends of the elastic component 50 are connected to the first body 42 and the groove wall respectively, improving the overall stability of the probe structure. Even with minor unevenness on the solar cell surface, good contact can be maintained, avoiding uneven sintering or testing errors caused by probe instability. Optionally, the extension directions of the first body 42 and the second body 43 are perpendicular to each other.

[0035] Furthermore, the second probe arm 20 is provided with a mounting end face 201 opposite to the battery body, and each pressing body 30 is disposed on the mounting end face 201; wherein, each pressing body 30 protrudes from the mounting end face 201. This protruding design allows the pressing body to contact the battery body more tightly, improving the fixing effect and making it suitable for the high temperature and high pressure environment during battery sintering. The protruding design of the pressing body ensures the tight fixing of the battery body under high temperature and high pressure environment, avoids battery displacement caused by temperature changes, and improves the consistency and yield of battery sintering.

[0036] The pressing body 30, which protrudes from the mounting end face 201, can be more precisely positioned at specific contact points on the battery body. This not only enhances the stability of the electrical connection but also ensures that the laser bias can be accurately applied to the predetermined position of the battery cell. It reduces the area in direct contact with the battery cell, thereby reducing stress concentration in that area, avoiding physical damage to the surface of the battery cell, and improving the accuracy of the process.

[0037] By reducing the size of the contact area between the lamination body 30 and the solar cell, this design ensures that the laser path is minimized even when passing near the lamination body 30 during the sintering process. This ensures that the laser can irradiate the area around the solder joint to be processed without obstruction, avoiding defects such as poor solder joints and excessively long black lines at the edges that may occur in EL (Electroluminescence) detection.

[0038] At least a portion of the surface of each pressing body 30 is an arc-shaped surface; and / or, at least a portion of each pressing body 30 is a hemispherical structure. This arc-shaped or hemispherical structure reduces stress concentration when the pressing body contacts the battery body, preventing damage to the battery surface and making it suitable for sintering processes where battery surface protection is required. The arc-shaped or hemispherical design of the pressing body not only reduces stress concentration on the battery surface during the pressing process but also effectively disperses pressure, preventing damage to the battery surface.

[0039] In existing needle-type probe structures, the radius of the arc where the contact surface with the battery surface lies is R1, preferably 0.4 mm, and the area of ​​the contact surface is 0.5 mm². 2 In this application, four pressing bodies 30 are configured, arranged in a matrix. The radius of the arc surface of each pressing body 30 is R2, preferably 0.15 mm. The contact area between the second probe arm 20 and the battery surface is 0.28 mm². 2As can be seen, compared with the probe structure of the prior art, the contact area between the probe structure of this application and the surface of the battery body is greatly reduced, which can further reduce scanning EL (Electroluminescence) defects caused by light shading. Although the contact area is reduced, this application designs four pressing bodies 30 distributed in a matrix, increasing the contact points with the surface of the battery cell and improving the stability of the contact. This ensures that the laser can accurately sinter at the predetermined position when a bias voltage is applied, guaranteeing the quality and consistency of the LECO process.

[0040] Each pressing body 30 is provided with a protective layer 31, which is attached to the battery body. The protective layer 31 is one or more of titanium nitride, diamond, and alumina. The protective layer 31 not only reduces wear but also improves thermal conductivity, making it suitable for the high-temperature environment during battery sintering and extending the lifespan of the probe structure. The use of the protective layer 31 significantly improves the wear resistance and high-temperature resistance of the probe structure, extending its lifespan, and also improves the heat transfer efficiency during battery sintering, accelerating the battery's heat treatment speed.

[0041] This application also provides a laser-assisted sintering apparatus, including a probe structure and a laser emitting component, wherein the probe structure is the probe structure described in the above embodiment.

[0042] During use, such as Figure 4As shown, the pressing body 30 in the probe structure 700 is attached to the battery body, forming an electrical connection between the pressing body 30 and the battery body. The probe structure 700 is placed above the harpoon structure 600 of the photovoltaic panel. The first probe arm 10 and the second probe arm 20 in the probe structure 700 are opposite to the spaced area in the harpoon structure 600. This helps to avoid the welding area. During the sintering process of the laser 500, the probe structure 700 will not block the area around the weld point, thereby improving the sintering quality. When using a traditional needle-type probe, due to the U-shaped design of the probe, its tail is too high, causing the area around the weld point to be partially blocked by the probe when the laser scans the battery cell. These areas cannot fully receive the sintering effect of the laser, resulting in the metal-semiconductor contact resistance not being effectively reduced. Furthermore, the blocked area appears as a poor weld and excessively long black lines at the edges in subsequent EL (Electroluminescence) inspection, which may be misjudged as microcracks, affecting the appearance quality and yield of the battery cell. Meanwhile, needle-shaped probes have a large contact area, making them unstable after installation and prone to oscillation, affecting the stability of probe testing. The large contact area also increases the possibility of laser obstruction, impacting the efficiency and quality of laser scanning. The L-shaped probe, with its more compact design and reduced tail height, ensures that the laser can uniformly cover the solder joint and its surrounding area, completely eliminating obstruction. This allows the LECO process to more effectively reduce contact resistance, decrease the occurrence of cold solder joints, shorten the length of black lines at the edges, and avoid misjudging as microcracks, thus significantly improving the EL appearance quality of the solar cell. The probe in this application has four semi-circular grippers at the bottom, reducing the contact area and making the contact with the solar cell more stable, reducing probe oscillation and improving testing stability. Simultaneously, the miniaturized contact surface reduces obstruction of the laser path, ensuring that the laser can be more accurately focused on the area to be processed, improving the efficiency and effect of laser scanning.

[0043] In use, the probe structure 700 of this application is placed above the photovoltaic panel harpoon structure 600, and its pressing body 30 is aligned and attached to the solder joint on the cell to form an electrical connection. At least a portion of the probe structure 700 corresponds to the interval in the harpoon structure 600. In this way, when the laser 500 performs sintering, the probe of this application will not block the area around the solder joint, ensuring that the laser can completely cover the area to be sintered, improving the uniformity and quality of sintering, thereby avoiding the generation of EL defects.

[0044] In the laser sintering equipment, the probe structure 700 is precisely positioned above the photovoltaic panel harpoon structure 600. The angled design of the first probe arm 10 and the second probe arm 20 ensures that the probe structure can adapt to the harpoon structure on the cell surface, avoiding obstruction of the laser path. The positioning part 41 of the mounting body 40 is precisely aligned with the mounting groove of the equipment, ensuring the stability and accuracy of the entire probe structure. When placing the probe structure 700, its pressing body 30 is tightly aligned and adhered to the solder joints on the cell, forming a stable electrical connection. The protruding design of the pressing body 30 further reduces the contact area, lowers stress concentration, and protects the cell surface from damage.

[0045] During laser sintering, because at least a portion of the probe structure 700 corresponds to the interval in the harpoon structure 600, the first probe arm 10 can avoid the area around the solder joint, ensuring that the laser 500 can irradiate the entire area to be sintered without obstruction. In this way, even in areas with dense solder joints, the laser can provide uniform coverage, improving the uniformity and quality of sintering and avoiding EL appearance defects such as insufficient sintering or excessively long black lines at the edges being misjudged as microcracks due to obstruction.

[0046] The use of the elastic component 50 ensures the stable posture of the probe structure when a reverse bias voltage is applied, preventing the probe from deviating from its predetermined position due to vibration or uneven pressure distribution. This improved stability not only optimizes the quality of the electrical connection but also ensures precise control of the laser bias voltage, further enhancing the consistency and repeatability of sintering.

[0047] Through the above design, the probe structure of this application significantly optimizes the laser-assisted sintering (LECO) process, improves the yield of solar cells, reduces the scrap of solar cells due to EL defects, and thus reduces production costs.

[0048] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:

[0049] The probe structure provided by this utility model includes a first probe arm 10, a second probe arm 20, and a pressing body 30. The first probe arm 10 extends along a first direction, the second probe arm 20 extends along a second direction, and the pressing body 30 is disposed on the second probe arm 20. Multiple pressing bodies 30 are spaced apart, and each pressing body 30 is attached to the battery body. This structural design allows the probe to apply pressure to the battery body more evenly, ensuring the battery remains stable during sintering and is suitable for the production of various batteries. This design not only improves the quality and efficiency of battery sintering but also reduces stress concentration during the fixing process, avoiding damage to the battery surface and extending the battery's lifespan. Furthermore, by setting an angle between the extending directions of the first probe arm 10 and the second probe arm 20, the first probe arm 10 can avoid being above the harpoon structure of the battery cell, allowing it to avoid the welding area and thus preventing the area around the solder joint from being blocked, preventing the battery body from experiencing poor soldering.

[0050] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0051] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0052] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0053] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0054] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0055] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A probe structure for pressing with a battery body, characterized in that, The probe structure includes: First probe arm (10), the first probe arm (10) extends along a first direction; A second probe arm (20) is disposed at the end of the first probe arm (10), the second probe arm (20) extends along a second direction, and there is a first angle between the first direction and the second direction; A pressing body (30) is disposed on the second probe arm (20). There are multiple pressing bodies (30), which are spaced apart. Each pressing body (30) is attached to the battery body.

2. The probe structure according to claim 1, characterized in that, At least a portion of the second probe arm (20) is elastically configured.

3. The probe structure according to claim 1, characterized in that, The second probe arm (20) extends along a predetermined curved trajectory in the second direction.

4. The probe structure according to claim 1, characterized in that, The second probe arm (20) includes: Multiple first connecting segments (21) are spaced apart along the second direction, and two adjacent first connecting segments (21) are connected by a second connecting segment (22), which extends along an arc-shaped trajectory; The plurality of first connecting segments (21) include a carrier connecting segment (210) opposite to the battery body, and each of the pressing bodies (30) is disposed on the carrier connecting segment (210).

5. The probe structure according to claim 1, characterized in that, The probe structure further includes: Mounting body (40) is disposed on the first probe arm (10) away from the second probe arm (20), the mounting body (40) extends along a third direction, the third direction having a second angle with the first direction; The mounting body (40) is provided with a positioning part (41). At least a portion of the mounting body (40) is installed in the mounting groove of the target support workpiece, and the mounting body (40) is positioned by the positioning part (41) fitting against the groove wall of the mounting groove.

6. The probe structure according to claim 5, characterized in that, The mounting body (40) includes a first body (42) and a second body (43) connected to each other, with a third included angle between the first body (42) and the second body (43), and the first probe arm (10) is connected to the second body (43). The probe structure further includes: An elastic component (50) is provided, wherein the two ends of the elastic component (50) are respectively connected to the first body (42) and the groove wall surface.

7. The probe structure according to claim 1, characterized in that, The second probe arm (20) is provided with a mounting end face (201) opposite to the battery body, and each of the pressing bodies (30) is disposed on the mounting end face (201); Each of the pressing bodies (30) protrudes from the mounting end face (201).

8. The probe structure according to claim 1, characterized in that, At least a portion of the surface of each of the said press-fit bodies (30) is an arcuate surface; and / or, At least a portion of each of the press-fit bodies (30) is a hemispherical structure.

9. The probe structure according to claim 1, characterized in that, Each of the pressing bodies (30) is provided with a protective layer (31), and the protective layer (31) is attached to the battery body; The protective layer (31) is one or more of titanium nitride layer, diamond layer, and alumina layer.

10. A laser-assisted sintering apparatus, comprising a probe structure and a laser emitting component, characterized in that, The probe structure is the probe structure according to any one of claims 1 to 9.

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