Upper electrode contact piece, upper electrode module and battery piece electrifying device

Abstract

The utility model discloses an upper electrode contact piece, an upper electrode module and a battery piece electrifying device, and belongs to the technical field of photovoltaic battery production. The upper electrode contact comprises a mounting substrate and a plurality of side-by-side mounting assemblies, a conductive part is mounted at the lower end of each mounting assembly, and the conductive parts are driven by the connected mounting assemblies to move up and down relative to the mounting substrate; the conductive part is provided with a wiring part, the wiring part is used for being electrically connected with an external power supply or an electrical detection instrument, the conductive part moves downwards to enable the bottom surface of the conductive part to abut against a grid line of the battery piece, and the grid line is electrically connected with the external power supply or the electrical detection instrument through the conductive part and the wiring part. According to the invention, a probe is not needed, the problem of probe wear in the prior art is avoided, and the structure of the scheme has the advantages of low cost, long service life and easiness in maintenance.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of photovoltaic cell production. Specifically, the present application relates to an upper electrode contact, an upper electrode module, and a cell power-on device. Background Art

[0002] During the battery cell production process, process requirements sometimes necessitate an external power supply or electrical tester to establish an electrical connection with the cell's grid lines to perform IV testing, EL testing, laser efficiency enhancement, and other processes. Currently, the industry typically uses probes to contact the cell's grid lines to establish an electrical connection. However, probes are prone to damage and wear out with frequent use, leading to frequent replacement. This high cost of probes increases production costs. Utility Model Content

[0003] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides an upper electrode contact member, an upper electrode module, and a cell power-on device, which achieve direct electrical contact with the cell using the conductive portion, thereby avoiding the waste of production costs and other problems caused by the use of probes.

[0004] In order to solve the above problems, the technical solutions adopted in this application are as follows:

[0005] In a first aspect, the present application provides an upper electrode contact member, comprising a mounting substrate and a plurality of side-by-side mounting components, wherein a conductive portion is mounted on the lower end of each mounting component, and the conductive portion moves up and down relative to the mounting substrate under the drive of the connected mounting component;

[0006] A wiring portion is provided on the conductive portion, which is used to electrically connect to an external power supply or an electrical detection instrument. The conductive portion moves downward so that the bottom surface of the conductive portion contacts the grid line of the battery cell. The grid line is electrically connected to the external power supply or electrical detector through the conductive portion and the wiring portion.

[0007] The upper electrode contact provided in the present application is provided with a conductive part that can move in the vertical direction on the mounting substrate, and the conductive part can move downward at least under the action of its own weight, so that the bottom surface of the conductive part can directly contact the grid line of the battery cell to achieve electrical connection. This structure does not require the use of a probe, avoiding the problem of probe wear that existed in the past, and the structure of this solution has the advantages of low cost, long service life, and easy maintenance.

[0008] Optionally, the mounting assembly includes a guide rail and a sliding portion, the guide rail is provided on the mounting base plate and extends in a vertical direction, the sliding portion is in sliding engagement with the guide rail, and the conductive portion is connected to the sliding portion.

[0009] The cooperation between the guide rail and the sliding part facilitates the conductive part connected to the sliding part to move in the vertical direction.

[0010] Optionally, the mounting assembly also includes a guide assembly, which includes a fixing part, a guide rod and a connecting part. The fixing part is arranged on the mounting base plate and close to the upper end of the guide rail, and the fixing part is provided with a guide hole passing through in the vertical direction. The connecting part is arranged on the sliding part and connected to the conductive part. The guide rod extends in the vertical direction, and the lower part of the guide rod is connected to the connecting part. The upper part of the guide rod is slidably arranged in the guide hole.

[0011] The guide holes on the fixing portion provide a guide constraint on the guide rod, thereby ensuring that the sliding portion always slides in the vertical direction, thereby ensuring that the conductive portion always moves in the vertical direction, thereby avoiding scratching the battery cell.

[0012] Optionally, a limiting protrusion is provided on the upper end of the guide rod, and the limiting protrusion is located above the guide hole. The limiting protrusion is used to provide a limit for the downward sliding of the guide rod.

[0013] By arranging a limiting protrusion on the upper end of the guide rod, the downward sliding of the guide rod can be braked to prevent the sliding part from leaving the guide rail.

[0014] Optionally, the guide assembly further includes an elastic component, which is sleeved on the guide rod and located between the fixing portion and the connecting portion, and the elastic component has a vertical downward elastic force acting on the connecting portion.

[0015] The elastic component is used to provide additional elastic force, which helps the conductive part to form a good resistance to the grid line on the battery cell under the action of its own weight and elastic force.

[0016] Optionally, the conductive portion is rotatably connected to the connecting portion, and the rotation causes the bottom surface of the conductive portion to contact multiple gate lines at the same time.

[0017] By means of a rotational connection, the conductive portion is adaptively deflected, thereby achieving interference with multiple grid lines.

[0018] Optionally, wiring portions are provided at both ends of the conductive portion.

[0019] The wiring part is configured to facilitate connection with an external power supply or electrical testing equipment.

[0020] The second aspect of the present application provides an upper electrode module, including a driving mechanism arranged on a frame, and the upper electrode contact piece of the first aspect mentioned above, the upper electrode contact piece is fixedly mounted on the driving end of the driving mechanism, and the mounting substrate is driven by the driving mechanism to move the upper electrode contact piece between an avoidance high position and a contact low position, and when the upper electrode contact piece descends to the contact low position, the bottom surface of the conductive portion contacts the grid line of the battery cell to achieve electrical connection, and when the upper electrode contact piece rises to the avoidance high position, the projection of the upper electrode contact piece in the vertical direction does not intersect with the battery cell below.

[0021] In the upper electrode module provided by the present application, the driving mechanism drives the installation substrate to move, so as to drive the overall movement of the upper electrode contact, enabling the upper electrode contact to move between the avoidance high position and the contact low position to achieve position switching. When the upper electrode contact descends to the contact low position, the bottom surface of its conductive part abuts against the grid line of the battery cell to achieve electrical connection. When it rises to the avoidance high position, the projection of the upper electrode contact in the vertical direction does not overlap with the battery cell below, thus avoiding the upper electrode contact from blocking the battery cell and affecting another detection and processing operation of the battery cell.

[0022] The third aspect of the present application provides a battery cell power-on device. The battery cell power-on device includes two groups of upper electrode modules as described in the second aspect. The two groups of upper electrode modules are arranged at intervals on the frame, and the two groups of upper electrode modules are respectively electrically connected to both ends of the grid line of the same battery cell.

[0023] By providing upper electrode contacts on the two groups of upper electrode modules whose bottom surfaces of the conductive parts can directly contact the grid lines of the battery cells to achieve electrical connection, the use of probes is avoided, and the problem of probe wear existing in the past is solved. Moreover, the structure of this solution has the advantages of low cost, long service life, and easy maintenance. Description of the Drawings

[0024] Figure 1 It is a schematic structural diagram of an upper electrode contact provided by the present utility model;

[0025] Figure 2 It is a three-dimensional structural diagram of an installation component provided by the present utility model;

[0026] Figure 3 It is a front view schematic diagram of an installation component provided by the present utility model;

[0027] Figure 4 It is a schematic structural diagram of the first type of upper electrode module and battery cell power-on device provided by the present utility model;

[0028] Figure 5 It is a schematic structural diagram of the second type of upper electrode module and battery cell power-on device provided by the present utility model;

[0029] Figure 6 It is a schematic structural diagram of the third type of upper electrode module and battery cell power-on device provided by the present utility model;

[0030] Figure 7 It is a schematic structural diagram of the third type of upper electrode module provided by the present utility model.

[0031] Description of the Reference Numerals:

[0032] 1 - Battery cell power-on device;

[0033] 10-upper electrode module; 11-frame; 12-mounting frame; 13-screw connection part; 21-driving mechanism;

[0034] 100 - upper electrode contact; 110 - mounting substrate; 111 - waist hole; 120 - mounting assembly; 130 - conductive portion; 131 - wiring portion; 121 - guide rail; 122 - sliding portion; 123 - guide assembly; 210 - mounting connection portion; 211 - lifting and sliding assembly; 212 - track guide plate; 213 - driving portion;

[0035] 1230-fixing part; 1231-guide rod; 1232-connecting part; 1233-limiting protrusion; 1234-elastic component; 1235-guide hole; 2110-second slide rail; 2111-first slide rail; 2112-slide rail; 2113-slide shaft; 2120-track guide groove; 2131-first motor; 2132-screw; 2133-drive shaft; 2134-transmission arm group; 2135-second motor. DETAILED DESCRIPTION

[0036] The following will be combined with the accompanying drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the embodiments described are part of the embodiments of the present disclosure, not all of them. Based on the embodiments of the present disclosure, all other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of the present disclosure.

[0037] like Figure 1 、 Figure 2 ,as well as Figure 3 As shown, Figure 1 is a schematic structural diagram of the upper electrode contact 100, Figure 2 is a three-dimensional structural diagram of the installation component 120, Figure 3 1 is a front view of the mounting assembly 120 .

[0038] like Figure 1 As shown, the upper electrode contact 100 includes a mounting substrate 110 and a plurality of mounting assemblies 120 arranged side by side and spaced apart. A conductive portion 130 is mounted on the lower end of each mounting assembly 120. The conductive portion 130 is provided with a wiring portion 131, which is used to electrically connect to an external power source or electrical detection equipment. The mounting assembly 120 can slide up and down on the mounting substrate 110, driving the conductive portion 130 to move up and down so that the bottom surface of the conductive portion 130 contacts the grid line of the battery cell. The grid line is electrically connected to the external power source or electrical detection equipment through the conductive portion 130 and the wiring portion 131.

[0039] Each mounting component 120 and the conductive part 130 are fixedly connected to move up and down synchronously. The multiple mounting components 120 and the multiple conductive parts 130 are independent of each other, which not only avoids interference between them, but also can detect multiple gate lines simultaneously, improving the test efficiency.

[0040] The up-and-down movement of the conductive part 130 and the mounting component 120 on the mounting substrate 110 can be achieved by a spring structure, a sliding structure, or a combination of the two. In this embodiment, the downward movement of the conductive part 130 is achieved by relying on at least its own gravity.

[0041] For the upper electrode contact 100 provided in this application, by providing a conductive part 130 that can move vertically on the mounting substrate 110, and the conductive part 130 can move downward at least under its own weight, the bottom surface of the conductive part 130 can directly contact the gate line of the battery cell to achieve electrical connection. This structure does not require the use of a probe, avoiding the probe wear problem existing in the past, and the structure of this solution has the advantages of low cost, long service life, and easy maintenance.

[0042] As Figure 1 and Figure 2 shown, this embodiment provides a sliding method of the mounting component 120 on the mounting substrate 110. Specifically, the mounting component 120 includes a guide rail 121 and a sliding part 122. The guide rail 121 is arranged on the mounting substrate 110 and extends in the vertical direction. The sliding part 122 is slidably matched with the guide rail 121, and the conductive part 130 is connected to the sliding part 122. Through the cooperation of the guide rail 121 and the sliding part 122, it is convenient for the conductive part 130 connected to the sliding part 122 to move in the vertical direction and prevent the movement path from deviating from the vertical direction.

[0043] Continuing as Figure 2 and Figure 3 shown, the mounting component 120 further includes a guiding component 123. The guiding component 123 includes a fixing part 1230, a guiding rod 1231, and a connecting part 1232. The fixing part 1230 is arranged on the mounting substrate 110 and near the upper end of the guide rail 121, and a guiding hole 1235 penetrating in the vertical direction is provided on the fixing part 1230. The connecting part 1232 is arranged on the sliding part 122 and connected to the conductive part 130. The up-and-down movement of the connecting part 1232 is realized by the sliding of the sliding part 122 on the guide rail 121. Exemplarily, the connecting part 1232 includes a plastic block, a rubber block, and other insulating blocks made of insulating materials.

[0044] The fixing portion 1230 and the connecting portion 1232 are connected via a guide rod 1231. Specifically, the upper portion of the guide rod 1231 is slidably disposed in a guide hole 1235. The guide rod 1231 extends in a vertical direction, and the lower portion of the guide rod 1231 is fixedly connected to the connecting portion 1232. The guide constraint on the guide rod 1231 generated by the guide hole 1235 on the fixing portion 1230 helps ensure that the sliding portion 122 always slides in the vertical direction, thereby ensuring that the conductive portion 130 always moves in the vertical direction, thereby ensuring that the conductive portion 130 forms a stable electrical contact with the battery cell grid line.

[0045] like Figure 2 and Figure 3 As shown, a limiting protrusion 1233 is provided on the upper end of the guide rod 1231. The limiting protrusion 1233 is located above the guide hole 1235 and is used to limit the downward sliding of the guide rod 1231. By providing the limiting protrusion 1233 on the upper end of the guide rod 1231, the downward sliding of the guide rod 1231 can be braked to prevent the sliding portion 122 from separating from the guide rail 121 and falling downward.

[0046] like Figure 2 and Figure 3 As shown, the guide assembly 123 also includes an elastic component 1234, which is sleeved outside the guide rod 1231 and located between the fixed portion 1230 and the connecting portion 1232. The elastic component 1234 has a vertical downward elastic force acting on the connecting portion 1232. When the conductive portion 130 and the connecting portion 1232 slide downward, the elastic component 1234 provides additional elastic force, which helps the conductive portion 130 to form a good resistance to the grid lines on the battery cell under the action of its own weight and elastic force. The elastic component 1234 can be a columnar spring, with one end abutting the fixed portion 1230 and the other end abutting the connecting portion 1232; or a spring sheet can be used, which can similarly apply elastic force to the connecting portion 1232.

[0047] In addition, the conductive part 130 is rotatably connected to the connecting part 1232. For example, the conductive part 130 and the connecting part 1232 are rotatably connected through a structure such as a rotating shaft or a bearing; when a rotating shaft structure is used for connection, the center line of the rotating shaft and the arrangement direction of the multiple conductive parts 130 are both located in a horizontal plane and are perpendicular to each other; when a bearing structure is used for connection, one of the conductive part 130 and the connecting part 1232 is connected to the outer ring of the bearing, and the other is connected to the inner ring of the bearing.

[0048] The rotational connection between the conductive portion 130 and the connecting portion 1232 enables the conductive portion 130 to adaptively deflect, thereby achieving resistance against multiple grid lines, so that the conductive portion 130 automatically levels or automatically aligns multiple grid lines, further improving the electrical contact effect and preventing false connections.

[0049] Among them, when the wiring part 131 is arranged on the conductive part 130, the wiring part 131 is arranged at both ends of the conductive part 130. By arranging the wiring part 131 at both ends of the conductive part 130, it is convenient to connect with an external power supply or an electrical detection instrument.

[0050] In addition, as Figure 1 shown, the mounting substrate 110 is provided with a waist-shaped hole 111. The waist-shaped hole 111 extends along the moving direction of the mounting component 120 and is used for inserting a connecting piece (not shown in the figure, such as a screw, a bolt, etc.) to realize the fixed installation of the mounting substrate 110. By providing the waist-shaped hole 111 on the mounting substrate 110, it is convenient to adjust the mounting height to adapt to the actual situation.

[0051] Based on the same application concept, as Figure 4 shown, this embodiment provides an upper electrode module 10, which includes a driving mechanism 21 arranged on a frame 11 and the upper electrode contact 100 in any one of the above embodiments. The upper electrode contact 100 is fixedly installed on the driving end of the driving mechanism 21. The mounting substrate 110 is driven by the driving mechanism 21 to move the upper electrode contact 100 between an avoidance high position and a contact low position. When the upper electrode contact 100 descends to the contact low position, the bottom surface of the conductive part abuts against the grid line of the battery cell to achieve electrical connection. When the upper electrode contact 100 rises to the avoidance high position, the projection of the upper electrode contact 100 in the vertical direction does not intersect with the battery cell below.

[0052] For the upper electrode module 10 provided in this application, the driving mechanism 21 drives the mounting substrate 110 to move, so as to drive the upper electrode contact 100 to move as a whole, and the upper electrode contact 100 moves between the avoidance high position and the contact low position to realize position switching. When the upper electrode contact 100 descends to the contact low position, the bottom surface of its conductive part abuts against the grid line of the battery cell to achieve electrical connection. When it rises to the avoidance high position, the projection of the upper electrode contact 100 in the vertical direction does not overlap with the battery cell below, so as to avoid the upper electrode contact 100 from blocking the battery cell and affecting another detection and processing operation of the battery cell.

[0053] Continuing as Figure 4 shown, the driving mechanism 21 includes a mounting and connecting part 210, a lifting and sliding component 211, a track guiding plate 212 and a driving part 213. Among them, the lifting and sliding component 211 is connected with the mounting and connecting part 210, and the mounting and connecting part 210 has degrees of freedom of lifting along the vertical direction and sliding along the horizontal direction on the lifting and sliding component 211. The mounting and connecting part 210 is connected with the mounting substrate 110, and the mounting substrate 110 is connected with a guiding component.

[0054] The track guide plate 212 is located on the outside of the lifting and sliding assembly 211 and a track guide groove 2120 is formed on the track guide plate 212. The guide component extends into the track guide groove 2120 and can move under the limitation of the track guide groove 2120. The track guide groove 2120 includes an upper inclined section and a lower vertical section. The lower end of the upper inclined section is smoothly connected to the upper end of the lower vertical section, and the upper end of the upper inclined section extends toward the side away from the lower battery cell.

[0055] Under the constraint of the track guide groove 2120, the installation connection part 210 is driven by the driving part 213 to move on the lifting and sliding assembly 211, and when the guide part moves to the upper end of the upper inclined section, the upper electrode contact part 100 is in the avoidance high position, and when the guide part moves to the lower end of the lower vertical section, the upper electrode contact part 100 is in the contact low position.

[0056] The driving part 213 can drive the installation connection part 210 to move on the lifting and sliding assembly 211. The movement is carried out under the constraint of the track guide groove 2120, so that the installation connection part 210 can be lifted and lowered in the vertical direction and slid in the horizontal direction, so that the upper electrode contact part 100 can move between the avoidance high position and the contact low position.

[0057] Specifically, the installation connection part 210 has the freedom to rise and fall in the vertical direction and slide in the horizontal direction on the lifting and sliding assembly 211. Therefore, the installation connection part 210 can be driven by the driving part 213 under the constraint of the track guide groove 2120 on the guide part to move on the lifting and sliding assembly 211. When the guide part moves to the upper end of the upper inclined section in the track guide groove 2120, the upper electrode contact part 100 is in the avoidance high position, and when the guide part moves to the lower end of the lower vertical section, the upper electrode contact part 100 is in the contact low position, thereby ensuring that when the upper electrode contact part 100 rises to the avoidance high position, the projection of the upper electrode contact part 100 in the vertical direction does not overlap with the battery cell below.

[0058] With the help of the cooperation between the guide component and the track guide groove 2120, the upper electrode contact piece 100 first moves obliquely downward and then moves vertically downward (or first moves vertically upward and then moves obliquely upward), so that when the conductive part 130 is pressed against the battery cell from the avoidance high position (or moves in the direction away from the battery cell and moves to the avoidance high position), it can vertically downwardly contact the gate line (or vertically upward away from the gate line), thereby preventing the battery cell from being scratched.

[0059] above Figure 4 is a structural diagram of one type of upper electrode module 10. This embodiment also provides structural diagrams of two other types of upper electrode modules 10, such as Figure 5 and Figure 6 As shown. Among them, Figure 4 、 Figure 5 as well as Figure 6The structure of the upper electrode contact 100 is as described in the embodiment of the upper electrode contact 100. The upper electrode module 10 drives the installation substrate to move through the driving mechanism 21, so that the whole upper electrode contact 100 can be driven to move, and the bottom surface of the conductive part can be in contact with the grid line of the battery cell for electrical connection.

[0060] As Figure 5 shown, as one of the implementation manners, the upper electrode module 10 further includes an installation frame 12. The lifting and sliding assembly 211 includes a slide rail 2112 extending along the vertical direction and a slide shaft 2113 extending along the horizontal direction. The installation frame 12 is arranged on the slide rail and is driven by the driving part 213 to lift along the slide rail in the vertical direction. The slide shaft 2113 is arranged on the installation frame, and under the constraint of the track guiding groove 2120 on the guiding component, the installation connection part 210 can slide on the slide shaft.

[0061] When the installation frame 12 moves along the vertical direction on the slide rail 2112, and at the same time the guiding component moves under the constraint of the track guiding groove 2120, the movement under this constraint drives the installation connection part 210 and the upper electrode contact 100 connected to the installation connection part 210 to move horizontally on the slide shaft 2113, so that the upper electrode contact 100 moves along the track of the track guiding groove 2120.

[0062] In addition, as Figure 5 shown, in this embodiment, the upper electrode module 10 further includes a screw sleeve connection part 13 connected to the installation frame. The driving part 213 includes a first motor 2131 and a lead screw 2132 driven by the first motor 2131 to rotate. The lead screw 2132 extends along the vertical direction, and the lead screw 2132 is in threaded cooperation with the screw sleeve connection part 13. By driving the lead screw 2132 to rotate through the first motor 2131, the screw sleeve connection part 13 is lifted and lowered along the lead screw 2132 in the vertical direction, thereby driving the installation frame 12 to lift and lower, so as to provide power for the upper electrode contact 100 to lift and lower in the vertical direction.

[0063] Continuing as Figure 4 shown, the lifting and sliding assembly 211 includes a first slide rail 2111 extending along the horizontal direction and a second slide rail 2110 extending along the vertical direction. The installation connection part 210 is arranged on the second slide rail 2110, and the second slide rail 2110 is arranged on the first slide rail 2111. The installation connection part 210 is driven by the driving part 213 to lift and lower along the second slide rail 2110 in the vertical direction, and the driving of the driving part 213 causes the second slide rail 2110 to synchronously move along the first slide rail 2111 in the horizontal direction.

[0064] Through the drive of the drive unit 213 and the constraint of the guiding member in the track guiding groove 2120, the movement of the mounting and connecting portion 210 on the first slide rail 2111 (extending along the horizontal direction) and the movement on the second slide rail 2110 (extending along the vertical direction) are linked, so that the mounting and connecting portion 210 drives the upper electrode contact 100 to move along the track of the track guiding groove 2120.

[0065] As Figure 7 shown, as one of the implementation manners, the drive unit 213 includes a drive shaft 2133 and a transmission arm group 2134. One end of the transmission arm group 2134 is connected to the drive shaft 2133, and the other end of the transmission arm group 2134 is connected to the mounting and connecting portion 210. When the transmission arm group 2134 is driven by the drive shaft 2133 to rotate, the acting force exerted on the mounting and connecting portion 210 by the other end of the transmission arm group 2134 has components along the vertical direction and the horizontal direction.

[0066] By driving the transmission arm group 2134 with the drive shaft 2133 to obtain the acting force exerted on the mounting and connecting portion 210, since when the transmission arm group 2134 is driven by the drive shaft 2133 to rotate, the other end of the transmission arm group 2134 has components along the vertical direction and the horizontal direction, thus enabling the mounting and connecting portion 210 to obtain the power for synchronous linkage sliding along the horizontal direction and the vertical direction.

[0067] In specific implementation, the transmission arm group 2134 can adopt the form of multiple transmission arms hinged in sequence. For example, a first transmission arm and a second transmission arm. The first end of the first transmission arm is fixedly installed on the drive shaft 2133, the second end of the first transmission arm is hinged to the first end of the second transmission arm, and the second end of the second transmission arm is connected to the mounting and connecting portion 210. Based on this structure, when the drive shaft 2133 is driven to rotate, it can drive the first transmission arm to rotate, and the acting force exerted on the mounting and connecting portion 210 by the second transmission arm hinged to the first transmission arm has components in the vertical direction and the horizontal direction, thus providing the power to enable the mounting and connecting portion 210 connected to the second transmission arm to move along the track guiding groove 2120.

[0068] In addition, as Figure 7 shown, the drive unit 213 further includes a second motor 2135 and a transmission belt (not shown in the figure). The second motor 2135 drives the drive shaft 2133 to rotate through the transmission belt; the second motor 2135 provides power for the rotation of the transmission arm group 2134 through the transmission belt.

[0069] As Figure 4 shown, based on the same application concept, the embodiment of the present application further provides a battery sheet power-on device 1. The battery sheet power-on device 1 includes two groups of upper electrode modules 10 as described in any one of the above. The two groups of upper electrode modules 10 are arranged at intervals on the frame 11, and the two groups of upper electrode modules 10 are respectively electrically connected to both ends of the grid lines of the same battery sheet.

[0070] By providing an upper electrode contact member 100 on the two sets of upper electrode modules 10 such that the bottom surface of the conductive portion can directly contact the grid lines of the battery cell to achieve electrical connection, the use of probes is avoided, thus eliminating the probe wear problem that existed in the past. Moreover, the structure of this solution has the advantages of low cost, long service life, and easy maintenance.

[0071] In the above description of the present application, unless otherwise clearly specified and defined, terms such as "fixed", "installed", "connected", or "coupled" should be understood in a broad sense. For example, with respect to the term "connected", it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components or the interaction relationship between two components. Therefore, unless otherwise clearly defined in the present application, those skilled in the art can understand the specific meaning of the above terms in the present application according to specific circumstances.

[0072] Based on the above description of the present application, those skilled in the art can also understand the following terms used. For example, terms indicating orientation or position relationship such as "upper", "lower", "front", "rear", "left", "right", "length", "width", "thickness", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", "center", "longitudinal", "transverse", "clockwise", or "counterclockwise" are based on the orientation or position relationship shown in the drawings of the present application. These are only for the purpose of facilitating the description of the solution of the present application and simplifying the description, rather than explicitly or implicitly indicating that the device or component involved must have the specific orientation, be constructed in the specific orientation, and operate in the specific orientation. Therefore, the above terms indicating orientation or position relationship cannot be understood or interpreted as a limitation to the solution of the present application.

[0073] In addition, terms such as "first" or "second" used in the present application to refer to numbers or ordinals are only for descriptive purposes and cannot be understood as explicitly or implicitly indicating relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, or more, etc., unless otherwise clearly and specifically defined.

[0074] Although several embodiments of the present application have been shown and described herein, it will be apparent to those skilled in the art that such embodiments are provided by way of example only. Many variations, modifications, and alternative forms will occur to those skilled in the art without departing from the spirit and scope of the present application. It should be understood that various alternatives to the embodiments of the present application described herein may be employed in practicing the present application. The appended claims are intended to define the scope of the present application and thus cover equivalents or alternatives within the scope of these claims.

Claims

1. An upper electrode contact, characterized in that, The upper electrode contact member includes a mounting substrate and a plurality of side-by-side mounting components, wherein a conductive portion is mounted on the lower end of each mounting component, and the conductive portion moves up and down relative to the mounting substrate under the drive of the connected mounting component; A wiring portion is provided on the conductive portion, and the wiring portion is used to electrically connect to an external power supply or an electrical detection instrument. The conductive portion moves downward so that the bottom surface of the conductive portion contacts the grid line of the battery cell, and the grid line is electrically connected to the external power supply or electrical detector through the conductive portion and the wiring portion.

2. The upper electrode contact according to claim 1, characterized in that The mounting assembly includes a guide rail and a sliding portion. The guide rail is arranged on the mounting base plate and extends in a vertical direction. The sliding portion is slidably matched with the guide rail, and the conductive portion is connected to the sliding portion.

3. The upper electrode contact according to claim 2, wherein The mounting assembly also includes a guide assembly, which includes a fixing portion, a guide rod and a connecting portion. The fixing portion is arranged on the mounting base plate and close to the upper end of the guide rail, and the fixing portion is provided with a guide hole passing through in a vertical direction. The connecting portion is arranged on the sliding portion and connected to the conductive portion. The guide rod extends in a vertical direction, and the lower portion of the guide rod is connected to the connecting portion. The upper portion of the guide rod is slidably arranged in the guide hole.

4. The upper electrode contact according to claim 3, characterized in that A limiting protrusion is provided on the upper end of the guide rod, and the limiting protrusion is located above the guide hole. The limiting protrusion is used to provide a limit for the downward sliding of the guide rod.

5. The upper electrode contact according to claim 3, wherein The guide assembly further includes an elastic component, which is sleeved on the guide rod and located between the fixing portion and the connecting portion. The elastic component has a vertical downward elastic force acting on the connecting portion.

6. The upper electrode contact according to claim 3, wherein, The conductive portion is rotatably connected to the connecting portion, and the rotation causes the bottom surface of the conductive portion to contact the plurality of gate lines at the same time.

7. The upper electrode contact according to any one of claims 1 to 6, characterized in that, The wiring parts are provided at both ends of the conductive part.

8. An upper electrode module, characterized in that, It includes a driving mechanism arranged on a frame, and the upper electrode contact piece according to any one of claims 1 to 7, wherein the upper electrode contact piece is fixedly mounted on the driving end of the driving mechanism, and the mounting substrate is driven by the driving mechanism to move the upper electrode contact piece between an avoidance high position and a contact low position, and when the upper electrode contact piece descends to the contact low position, the bottom surface of the conductive portion contacts the grid line of the battery cell to achieve electrical connection, and when the upper electrode contact piece rises to the avoidance high position, the projection of the upper electrode contact piece in the vertical direction does not intersect with the battery cell below.

9. A power-on device for battery cells, characterized in that, The cell power-on device comprises two groups of upper electrode modules as claimed in claim 8 , which are spaced apart on the frame and electrically connected to both ends of the grid line of the same cell respectively.

Images