Photovoltaic module conductive pressing block and EL detection device

Abstract

The utility model relates to a photovoltaic assembly conductive pressing block and an EL detection device. The photovoltaic module conductive pressing block comprises a first pressing block, a second pressing block and a driving piece, one of the first pressing block and the second pressing block is provided with a convex block, the other one of the first pressing block and the second pressing block is provided with a positioning groove for a welding strip to penetrate through, the positioning groove comprises two limiting walls which are oppositely arranged in the first direction, and the two limiting walls are used for abutting against the welding strip; and the driving piece is used for driving the first pressing block and the second pressing block to be relatively close to each other, so that the convex block is matched with the positioning groove in an inserting manner to press the welding strip. The bump and the two limiting walls abut against the welding strip connected to the battery string, so that the contact area of the conductive pressing block and the welding strip is increased, the conductive pressing block can be in effective contact with the welding strip, and the good contact performance of the conductive pressing block and the welding strip is improved. The two limiting walls abut against the two sides of the welding strip respectively, so that the welding strip can be limited to move in the radial direction, the welding strip is prevented from deviating relative to the battery string, and the influence on the welding quality of the welding strip and the battery string is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic components, in particular to a photovoltaic component conductive voltage block and an EL detection device. Background Art

[0002] EL (Electroluminescence) detection is to apply a forward voltage to the battery string to inject unbalanced carriers, and receive the photons released by the radiation recombination of unbalanced carriers through a photon detector. The higher the unbalanced carrier concentration (normal area), the more photons are released, and the brighter the EL display image is. The lower the unbalanced carrier concentration (defective area), the fewer photons are released, and the darker the EL image is. The light and dark relationship of the image can reflect the defects of the batteries inside the component.

[0003] Before EL testing, the soldering ribbons at both ends of the battery string need to be powered on. In the prior art, an upper pressing block and a lower pressing block are usually used to press and power on the soldering ribbon group. Since the pressing surfaces of the upper pressing block and the lower pressing block are both flat, it is difficult to ensure good contact between multiple soldering ribbons and the conductive voltage block, which affects the detection effect of EL testing, makes it impossible to accurately judge the quality of the battery string after welding, and increases the hidden dangers and risks in the subsequent component manufacturing process. Utility Model Content

[0004] Based on this, it is necessary to provide a photovoltaic module conductive voltage block to address the technical problems in the prior art that it is difficult to ensure good contact between multiple welding ribbons and the conductive voltage block, thereby affecting the detection effect of EL detection, being unable to accurately judge the quality of the battery after string welding, and increasing hidden dangers and risks in the subsequent component manufacturing process.

[0005] A photovoltaic module conductive pressure block, comprising a first pressure block, a second pressure block and a driving member:

[0006] One of the first pressing block and the second pressing block is provided with a protrusion, and the other is provided with a positioning groove for the soldering strip to pass through, the positioning groove includes two limiting walls arranged opposite to each other along a first direction, and the two limiting walls are used to abut against the soldering strip; the driving member is used to drive the first pressing block and the second pressing block to be relatively close to each other so that the protrusion is plugged into and matched with the positioning groove to press the soldering strip.

[0007] In one of the embodiments, in the direction from the bottom of the positioning groove to the groove opening, the distance between the two limiting walls gradually increases.

[0008] In one of the embodiments, the protrusion is adapted to the positioning groove, and the protrusion is used to engage with the positioning groove.

[0009] In one of the embodiments, the positioning groove further includes a supporting wall, the supporting wall is located between the two limiting walls, and the supporting wall is used to support the welding strip.

[0010] In one embodiment, a first tooth is provided on the side of the protrusion facing the positioning groove, and the first tooth is used to abut against the welding strip; and / or a second tooth is provided on the support wall, and the second tooth is used to abut against the welding strip.

[0011] In one embodiment, the bump includes a base and a first flexible conductor connected to each other, the first flexible conductor is connected to a side of the base facing the positioning groove, and the first flexible conductor is used to abut against the welding strip.

[0012] In one embodiment, the first pressing block includes a first substrate and a plurality of first pressing portions, wherein the plurality of first pressing portions are sequentially arranged on the first substrate along a first direction, and each of the first pressing portions is provided with the protrusion;

[0013] The second pressing block includes a second substrate and a plurality of second pressing parts, wherein the plurality of second pressing parts are sequentially arranged on the second substrate along the first direction, each of the second pressing parts is provided with the positioning groove, and the number and position of the second pressing parts correspond one-to-one to the number and position of the first pressing parts.

[0014] In one embodiment, a first mounting groove extending along the first direction is provided on the first substrate, and each of the first pressing portions is provided with a first clamping protrusion, the first clamping protrusion is engaged with the first mounting groove and can move relative to the first substrate along the first direction;

[0015] The second substrate is provided with a second mounting groove extending along the first direction, and each of the second pressing parts is provided with a second clamping protrusion, which is engaged with the second mounting groove and can move relative to the second substrate along the first direction.

[0016] In one embodiment, the first mounting slot has a first opening on at least one side along the first direction, and the first opening is used for the first clamping protrusion to be ejected;

[0017] The second installation slot has a second opening on at least one side along the first direction, and the second opening is used for the second clamping protrusion to escape.

[0018] The utility model also provides an EL detection device, which can solve at least one of the above technical problems.

[0019] An EL detection device comprises the above-mentioned photovoltaic module conductive voltage block and an EL camera, wherein the EL camera is used to perform EL detection on a battery string after power-on.

[0020] Beneficial effects:

[0021] The photovoltaic module conductive block provided by the embodiment of the utility model includes a first pressing block, a second pressing block and a driving member; one of the first pressing block and the second pressing block is provided with a protrusion, and the other is provided with a positioning groove for the welding strip to pass through, and the positioning groove includes two limiting walls arranged relatively along the first direction, and the two limiting walls are used to abut against the welding strip; the driving member is used to drive the first pressing block and the second pressing block to be relatively close, so that the protrusion is plugged and matched with the positioning groove to press the welding strip. In the present application, the contact area between the conductive block and the welding strip is increased by abutting the welding strip connected to the battery string through the protrusion and the two limiting walls, so that the conductive block can effectively contact the welding strip, and the contact quality between the conductive block and the welding strip is improved. Among them, the two limiting walls are respectively abutted on both sides of the welding strip, so as to limit the radial movement of the welding strip and avoid the deviation of the welding strip relative to the battery string, so as to reduce the influence of the conductive block on the welding quality of the welding strip and the battery string during the power-on process of pressing the conductive block with the welding strip, thereby improving the reliability of the conductive block of the photovoltaic module.

[0022] The utility model also provides an EL detection device, comprising the above-mentioned photovoltaic component conductive voltage block, and also comprising an EL camera, wherein the EL camera is used for performing EL detection on the battery string after power-on. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] FIG1 is a schematic diagram of the cooperation between the conductive voltage block of a photovoltaic module and the welding strip of a battery string provided by an embodiment of the utility model.

[0024] FIG. 2 is a schematic diagram of a first pressing portion and a second pressing portion in a photovoltaic module conductive block provided by an embodiment of the utility model.

[0025] FIG3 is a schematic diagram of the cooperation between the first pressing portion and the second pressing portion in the photovoltaic module conductive block provided by an embodiment of the utility model.

[0026] FIG. 4 is a schematic diagram of a first pressing portion and a second pressing portion in a conductive voltage block of a photovoltaic assembly provided by another embodiment of the present invention.

[0027] FIG. 5 is a partial exploded schematic diagram of a photovoltaic module conductive block provided in an embodiment of the present invention.

[0028] Figure Number:

[0029] 100-first pressing block; 110-bump; 120-first tooth; 130-base; 140-first flexible conductor; 150-first substrate; 151-first mounting groove; 152-first opening; 160-first clamping portion; 170-first clamping protrusion; 200-second pressing block; 210-positioning groove; 220-limiting wall; 230-supporting wall; 240-second tooth; 250-second flexible conductor; 260-second substrate; 261-second mounting groove; 262-second opening; 270-second clamping portion; 280-second clamping protrusion; 300-battery string; 400-welding strip. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0033] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0035] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0036] Referring to Figures 1 and 2, Figure 1 is a schematic diagram of the cooperation between the photovoltaic module conductive block and the welding strip of the battery string provided by an embodiment of the utility model. Figure 2 is a schematic diagram of the separation of the first pressing part and the second pressing part in the photovoltaic module conductive block provided by an embodiment of the utility model. The photovoltaic module conductive block provided by an embodiment of the utility model includes a first pressing block 100, a second pressing block 200 and a driving member; one of the first pressing block 100 and the second pressing block 200 is provided with a protrusion 110, and the other is provided with a positioning groove 210 for the welding strip 400 to pass through, and the positioning groove 210 includes two limiting walls 220 arranged oppositely along the first direction, and the two limiting walls 220 are used to abut against the welding strip 400; the driving member is used to drive the first pressing block 100 and the second pressing block 200 to be relatively close, so that the protrusion 110 and the positioning groove 210 are plugged and matched to compress the welding strip 400.

[0037] Specifically, in the present application, the protrusion 110 and the two limiting walls 220 are abutted against the welding strip 400 connected to the battery string 300. Compared with the method in the prior art in which the pressing surfaces of the upper pressing block and the lower pressing block are both flat, the contact area between the conductive voltage block and the welding strip 400 is increased, so that the conductive voltage block can effectively contact the welding strip 400, thereby improving the contact between the conductive voltage block and the welding strip 400.

[0038] Among them, the two limiting walls 220 are respectively abutted against the two sides of the welding strip 400, so that the welding strip 400 can be clamped, limiting the radial movement of the welding strip 400, avoiding the welding strip 400 from being offset relative to the battery string 300, reducing the influence of the conductive voltage block on the welding quality of the welding strip 400 and the battery string 300 during the process of pressing and powering on the welding strip 400, and improving the reliability of the conductive voltage block of the photovoltaic module.

[0039] It should be noted that the side of the protrusion 110 facing the positioning groove 210 has a conductor, and the groove wall of the positioning groove 210 also has a conductor, so that when the protrusion 110 cooperates with the positioning groove 210 to press the welding strip 400 and the welding strip 400 is powered on, the entire battery string 300 can be turned on.

[0040] Refer to Figures 1 and 2. In one embodiment, in the direction from the bottom of the positioning groove 210 to the notch, the spacing between the two limiting walls 220 gradually expands, so that the welding strips 400 of different radial sizes can be clamped, and the deviation of the welding strips 400 relative to the battery string 300 is stably limited, thereby improving the adaptability and reliability of the photovoltaic module conductive block. In addition, in the direction from the bottom of the positioning groove 210 to the notch, the setting of the spacing between the two limiting walls 220 gradually expands also plays a guiding role, which facilitates the insertion of the protrusion 110.

[0041] It should be noted that the soldering strip 400 in this embodiment is a cylinder, so that the two limiting walls 220 can stably clamp the soldering strip 400 .

[0042] Referring to Figures 1, 2 and 3, Figure 3 is a schematic diagram of the cooperation between the first pressing part and the second pressing part in the photovoltaic module conductive block provided by an embodiment of the utility model. In one embodiment, the protrusion 110 is adapted to the positioning groove 210, so that when the protrusion 110 is inserted into the positioning groove 210, it can engage with the positioning groove 210 to stably limit the relative movement of the first pressing block 100 and the second pressing block 200, thereby reducing the friction force applied to the welding strip 400, further reducing the deviation of the welding strip 400, and improving the reliability of the photovoltaic module conductive block.

[0043] 1 and 2 , in one embodiment, the positioning groove 210 further includes a supporting wall 230 . The supporting wall 230 is located between the two limiting walls 220 . The supporting wall 230 is used to support the welding strip 400 .

[0044] Specifically, the support wall 230 is the bottom wall of the positioning groove 210. The provision of the support wall 230 further increases the contact area between the positioning groove 210 and the welding strip 400, thereby improving the contact between the conductive voltage block of the photovoltaic module and the welding strip 400.

[0045] Referring to FIGS. 1 , 2 and 3 , in one embodiment, a first tooth 120 is provided on the side of the protrusion 110 facing the positioning groove 210. The first tooth 120 is used to abut against the welding strip 400, thereby increasing the contact points between the protrusion 110 and the welding strip 400, increasing the contact area between the protrusion 110 and the welding strip 400, and further improving the contact between the conductive block of the photovoltaic module and the welding strip 400.

[0046] Referring to FIGS. 1 , 2 and 3 , in one embodiment, a second tooth 240 is provided on the support wall 230 , and the second tooth 240 is used to abut against the soldering strip 400 , thereby increasing the contact points between the bump 110 and the soldering strip 400 , increasing the contact area between the support wall 230 and the soldering strip 400 , and improving the contact quality between the conductive bump 110 and the soldering strip 400 .

[0047] In one of the embodiments, a first tooth 120 is provided on the side of the protrusion 110 facing the positioning groove 210, and a second tooth 240 is provided on the support wall 230, thereby increasing the contact points between the protrusion 110 and the soldering strip 400, increasing the contact area between the conductive voltage block and the soldering strip 400, and improving the contact quality between the conductive voltage block and the soldering strip 400.

[0048] Referring to FIG. 1 and FIG. 4 , FIG. 4 is a schematic diagram of a first pressing portion and a second pressing portion in a photovoltaic module conductive block provided by another embodiment of the utility model. In another embodiment, the convex block 110 includes a base 130 and a first flexible conductor 140 connected to each other, the first flexible conductor 140 is connected to a side of the base 130 facing the positioning groove 210, and the first flexible conductor 140 is used to abut against the welding strip 400.

[0049] Specifically, the bump 110 cooperates with the positioning groove 210 to compress the soldering strip 400, so that the first flexible conductor 140 can be deformed, thereby covering the soldering strip 400 toward the side of the bump 110, thereby increasing the contact area between the bump 110 and the soldering strip 400, and improving the contact quality between the conductive bump 110 and the soldering strip 400. Preferably, the first flexible conductor 140 is a conductive foam.

[0050] Furthermore, a second flexible conductor 250 is provided on the support wall 230, and the second flexible conductor 250 is used to abut against the soldering strip 400, so that when the bump 110 cooperates with the positioning groove 210 and the soldering strip 400 is pressed, the second flexible conductor 250 can be deformed, thereby covering the side of the soldering strip 400 away from the bump 110, thereby increasing the contact area between the positioning groove 210 and the soldering strip 400, and improving the contact quality between the conductive bump and the soldering strip 400. Preferably, the second flexible conductor 250 is a conductive foam.

[0051] Referring to Figures 1, 2 and 5, Figure 5 is a partial exploded schematic diagram of a photovoltaic module conductive block provided by an embodiment of the utility model. In one embodiment, the first pressing block 100 includes a first substrate 150 and a plurality of first pressing parts 160, the plurality of first pressing parts 160 are sequentially arranged on the first substrate 150 along the first direction, and each first pressing part 160 is provided with the protrusion 110; the second pressing block 200 includes a second substrate 260 and a plurality of second pressing parts 270, the plurality of second pressing parts 270 are sequentially arranged on the second substrate 260 along the first direction, and each second pressing part 270 is provided with a positioning groove 210, and the number and position of the second pressing parts 270 correspond to the number and position of the first pressing parts 160.

[0052] Specifically, the arrangement of the plurality of first pressing parts 160 and the second pressing parts 270 can cooperate with the plurality of solder strips 400. In the process of plugging each convex block 110 into the corresponding positioning groove 210, part of the first flexible conductor 140 can be deformed, so that the first pressing block 100 can continue to descend, so that each first flexible conductor 140 is in contact with the corresponding solder strip 400, ensuring that each solder strip 400 is in good contact with the first pressing block 100 and the second pressing block 200, thereby improving the EL abnormality caused by the solder strip 400 not being fixed well during EL detection.

[0053] Furthermore, each first clamping part 160 and each second clamping part 270 are separately provided, so that when one of the first clamping parts 160 or the second clamping parts 270 is damaged, only the damaged part can be replaced, thereby increasing the service life of the conductive block of the photovoltaic module.

[0054] Referring to Figures 1, 2 and 5, in one embodiment, a first mounting groove 151 extending along the first direction is provided on the first substrate 150, and each first clamping portion 160 is provided with a first latching protrusion 170, the first latching protrusion 170 is engaged with the first mounting groove 151 and can move relative to the first substrate 150 along the first direction; a second mounting groove 261 extending along the first direction is provided on the second substrate 260, and each second clamping portion 270 is provided with a second latching protrusion 280, the second latching protrusion 280 is engaged with the second mounting groove 261 and can move relative to the second substrate 260 along the first direction.

[0055] Specifically, the first clamping protrusion 170 is arranged on the side of the convex block 110 away from the positioning groove 210, and the first clamping protrusion 170 is engaged with the first mounting groove 151, so that the first pressing part 160 can be stably engaged with the first substrate 150. The second clamping protrusion 280 is arranged on the side of the second pressing part 270 away from the positioning groove 210, and the second clamping protrusion 280 is engaged with the second mounting groove 261, so that the second pressing part 270 can be stably engaged with the second substrate 260. The first clamping protrusion 170 can move in the first mounting groove 151 along the first direction, and the second clamping protrusion 280 can move in the second mounting groove 261 along the first direction, so that the positions of the first clamping part 160 and the second clamping part 270 in the first direction can be adjusted to adapt to the battery string 300 with different spacings between the welding strips 400, thereby improving the adaptability of the photovoltaic module conductive block.

[0056] Furthermore, the driving member is connected to the first substrate 150, so as to drive the first pressing block 100 to approach the second pressing block 200, so as to achieve the compression of the welding strip 400. In this embodiment, the driving member can be a combination of a motor and a lead screw module. In other embodiments, the driving member can also be a linear motor, etc., as long as it can drive the first pressing block 100 to approach the second pressing block 200.

[0057] 1 , 2 and 5 , in one embodiment, the first mounting slot 151 has a first opening 152 on at least one side along the first direction, and the first opening 152 is used for the first locking protrusion 170 to escape; the second mounting slot 261 has a second opening 262 on at least one side along the first direction, and the second opening 262 is used for the second locking protrusion 280 to escape.

[0058] Specifically, the first installation groove 151 has first openings 152 on both sides along the first direction, so that the first clamping protrusion 170 can be easily slid out from the first opening 152, so as to facilitate the installation and removal of the first pressing part 160. The second installation groove 261 has second openings 262 on both sides along the first direction, so that the second clamping protrusion 280 can be easily slid out from the second opening 262, so as to facilitate the installation and removal of the second pressing part 270.

[0059] Among them, since the installation and disassembly of the first clamping part 160 and the second clamping part 270 are relatively convenient, when there are different numbers of welding strips 400, the number of the first clamping part 160 and the second clamping part 270 can be increased or decreased accordingly to correspond to the number of welding strips 400, thereby improving the adaptability of the conductive voltage block of the photovoltaic module.

[0060] The embodiment of the utility model further provides an EL detection device, comprising the above-mentioned photovoltaic component conductive voltage block, and also comprising an EL camera, wherein the EL camera is used to perform EL detection on the battery string 300 after power-on.

[0061] Specifically, in the present application, the first pressing part 160 is engaged with the second pressing part 270 to clamp each welding strip 400 and power it on, so as to facilitate the EL camera to perform EL detection on the battery string 300. In the present application, the convex block 110 and the two limiting walls 220 are abutted against the welding strip 400 connected to the battery string 300, thereby increasing the contact area between the conductive voltage block and the welding strip 400, so that the conductive voltage block can effectively contact the welding strip 400, and improve the contact quality between the conductive voltage block and the welding strip 400. Among them, the two limiting walls 220 are respectively abutted against the two sides of the welding strip 400, so as to limit the radial movement of the welding strip 400 and avoid the welding strip 400 from being offset relative to the battery string 300, so as to reduce the influence of the conductive voltage block on the welding quality of the welding strip 400 and the battery string 300 during the process of pressing and powering on the welding strip 400, thereby improving the effectiveness of the detection result of the EL detection device.

[0062] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0063] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A photovoltaic module conductive block, characterized in that: The photovoltaic module conductive block includes a first pressing block, a second pressing block and a driving member: One of the first pressing block and the second pressing block is provided with a protrusion, and the other is provided with a positioning groove for the soldering strip to pass through, the positioning groove includes two limiting walls arranged opposite to each other along a first direction, and the two limiting walls are used to abut against the soldering strip; the driving member is used to drive the first pressing block and the second pressing block to be relatively close to each other so that the protrusion is plugged into and matched with the positioning groove to press the soldering strip.

2. The photovoltaic module conductive block according to claim 1, characterized in that: In the direction from the bottom of the positioning groove to the groove opening, the distance between the two limiting walls gradually increases.

3. The photovoltaic module conductive block according to claim 2, characterized in that: The protrusion is adapted to the positioning groove, and the protrusion is used to engage with the positioning groove.

4. The photovoltaic module conductive block according to claim 2, characterized in that: The positioning groove further includes a supporting wall, which is located between the two limiting walls and is used to support the welding strip.

5. The photovoltaic module conductive block according to claim 4, characterized in that: The protrusion is provided with a first tooth on one side facing the positioning groove, and the first tooth is used to abut against the welding strip; and / or, the support wall is provided with a second tooth, and the second tooth is used to abut against the welding strip.

6. The photovoltaic module conductive block according to claim 1, characterized in that: The bump includes a base and a first flexible conductor that are connected to each other. The first flexible conductor is connected to a side of the base that faces the positioning groove. The first flexible conductor is used to abut against the welding strip.

7. The photovoltaic module conductive block according to any one of claims 1 to 6, characterized in that: The first pressing block comprises a first substrate and a plurality of first pressing parts, wherein the plurality of first pressing parts are sequentially arranged on the first substrate along a first direction, and each of the first pressing parts is provided with the protrusion; The second pressing block includes a second substrate and a plurality of second pressing parts, wherein the plurality of second pressing parts are sequentially arranged on the second substrate along the first direction, each of the second pressing parts is provided with the positioning groove, and the number and position of the second pressing parts correspond one-to-one to the number and position of the first pressing parts.

8. The photovoltaic module conductive block according to claim 7, characterized in that: The first substrate is provided with a first mounting groove extending along the first direction, and each of the first pressing parts is provided with a first clamping protrusion, the first clamping protrusion is engaged with the first mounting groove and can move relative to the first substrate along the first direction; The second substrate is provided with a second mounting groove extending along the first direction, and each of the second pressing parts is provided with a second clamping protrusion, which is engaged with the second mounting groove and can move relative to the second substrate along the first direction.

9. The photovoltaic module conductive block according to claim 8, characterized in that: The first mounting slot has a first opening on at least one side along the first direction, and the first opening is used for the first clamping protrusion to be ejected; The second installation slot has a second opening on at least one side along the first direction, and the second opening is used for the second clamping protrusion to escape.

10. An EL detection device, characterized in that: The photovoltaic module conductive block comprises the photovoltaic module conductive block according to any one of claims 1 to 9, and also comprises an EL camera, wherein the EL camera is used to perform EL detection on the battery string after power-on.

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