CN215183864U - Weld and take disappearance detection mechanism and stringer - Google Patents

Abstract

The utility model relates to a solar cell technical field discloses a weld and take disappearance detection mechanism and stringer. The solder strip loss detection mechanism comprises a clamp assembly, a display and a power supply. The clamp assembly is used for clamping a plurality of welding strips extending out of the positive terminals and the negative terminals of the circuits. The display includes a plurality of pilot lamps, and a plurality of circuits communicate and form a plurality of solder strip return circuits with the pilot lamp that corresponds through the anchor clamps subassembly. When the solder strip is missing in the corresponding solder strip loop, the indicator light does not emit light, and the power supply is used for providing electric energy for the plurality of solder strip loops. When the power supply supplies electric energy to the welding strip loop, the welding strip loop with the missing welding strip is disconnected, the indicating lamp is not on, the welding strip loop with the complete welding strip is connected, and the indicating lamp emits light. Whether appear welding the area disappearance through looking over the pilot lamp luminous demonstration corresponding welding the area return circuit, the measurement personnel of being convenient for look over, have good directly perceived nature. Moreover, the detection operation is simple and convenient, the detection accuracy is high, and the product reject ratio is reduced.

Description

Weld and take disappearance detection mechanism and stringer

Technical Field

The utility model belongs to the technical field of solar cell, especially, relate to a weld and take disappearance detection mechanism and stringer.

Background

The series welding machine carries the battery pieces by using a mechanical transmission mechanism, and the battery pieces are welded on a heating bottom plate by using high-temperature gas of a hot air pipe.

When the welding strip is welded with the main grid position, the conditions of cell string splinters, false welding and the like can occur, and the conditions of the cell string splinters and the false welding can be accurately detected through an Electroluminescence (EL) detection mechanism on the series welding machine. With the change of the product model of the solar cell piece, when a multi-main grid (MBB) product is processed, the welding strip material in the module is changed from a strip shape to a cylinder shape in order to match the change of the MBB model, and the diameter of the welding strip is about 0.32 mm-0.35 mm. The problem of solder strip loss may occur when the stringer performs soldering. In the current MBB half-chip version of 9 main grids, the missing proportion of the welding strip is as high as 0.9%.

Because the EL detection mechanism can only detect whether the battery piece communicates, in the MBB product, the both ends of battery cluster have many to weld the area, when lacking one or several, still can pass through EL and detect, lead to the unable problem that welds the area disappearance that detects of EL detection mechanism. Moreover, the number of the welding strips on the two sides of the battery string is large, the difficulty in observation is high through human eyes, and the detection accuracy and the detection efficiency are reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a weld and take disappearance detection mechanism to detect the problem of battery stringer disappearance accurately, high-efficiently, reduce the product defective rate.

Another object of the utility model is to provide a stringer to detect the battery stringer problem of taking the disappearance accurately, high-efficiently, reduce the product defective rate.

To achieve the purpose, the technical proposal adopted by the utility model is that:

a welding strip loss detection mechanism is used for detecting whether a welding strip of a battery string is lost or not, wherein the battery string comprises a plurality of battery pieces, the welding strip is welded on the battery pieces, and the battery pieces are sequentially connected through the welding strip; weld and take disappearance detection mechanism includes:

the two clamp assemblies are respectively used for clamping the plurality of welding strips extending out of the positive ends and the negative ends of the plurality of battery strings, and the clamp assemblies are electrically connected with the welding strips;

the display comprises a plurality of indicator lamps electrically connected with the clamp assembly, and the plurality of welding strips are communicated with the corresponding indicator lamps through the clamp assembly to form a plurality of welding strip loops;

a power source for providing power to the plurality of solder strip loops.

Further, the clamp assembly comprises a base and a clamping plate, wherein the clamping plate is rotatably arranged on the base so as to press the welding strip on the base.

Further, the splint include splint main part and conducting block, the splint main part is provided with a plurality ofly along its length direction interval conducting block, the conducting block can with correspond weld the area support press in the base, and with correspond weld the area electricity and be connected.

Further, the end part of the conductive block facing the base is provided with a positioning groove matched with the welding strip.

Furthermore, each conducting block in one clamp assembly is electrically connected with the corresponding indicator lamp through a conducting wire and is electrically connected with the positive electrode of the power supply through the indicator lamp; each conductive block in the other clamp assembly is electrically connected with the negative pole of the power supply through a lead respectively.

Furthermore, each conducting block in one clamp assembly is electrically connected with the corresponding indicator lamp through a conducting wire and is electrically connected with the positive electrode of the power supply through the corresponding indicator lamp; each conducting block in the other clamp assembly is electrically connected with the negative pole of the power supply through a conducting wire after being connected in series.

Furthermore, an avoiding hole for the lead to pass through is formed in the splint main body.

Furthermore, a binding post is arranged on the conductive block, and the binding post and the conductive block are installed in a matched mode so as to fixedly connect the conducting wire to the conductive block.

Further, the display further comprises an alarm configured to issue an alarm when at least one of the indicator lights is not illuminated.

A series welding machine comprises the welding strip loss detection mechanism.

The utility model has the advantages that:

the utility model provides a weld and take disappearance detection mechanism, the battery cluster is fixed through the anchor clamps subassembly to insert the pilot lamp in the many parallelly connected circuits on with the battery cluster respectively, take the return circuit in order to form a plurality of welding. When the power supply supplies electric energy to the welding strip loop, the welding strip loop with the missing welding strip is disconnected, the indicating lamp does not emit light, the welding strip loop with the complete welding strip is conducted, and the indicating lamp emits light. Whether the welding strip circuit corresponding to the bright and dark display of the indicating lamp is lost or not is displayed, so that detection personnel can conveniently check the welding strip circuit, and the visual property is good. Moreover, the detection operation is simple and convenient, the detection accuracy is high, and the product reject ratio is reduced.

The utility model provides a stringer includes foretell weld and takes disappearance detection mechanism. Whether the welding strip circuit corresponding to the bright and dark display of the indicating lamp is lost or not is displayed, so that detection personnel can conveniently check the welding strip circuit, and the visual property is good. Moreover, the detection operation is simple and convenient, the detection accuracy is high, and the product reject ratio is reduced.

Drawings

Fig. 1 is a schematic structural diagram of a battery string provided in an embodiment of the present invention;

fig. 2 is an end view of a solder strip missing detection mechanism provided by an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a solder strip loss detection mechanism for removing a power supply and a display according to an embodiment of the present invention;

fig. 4 is a schematic partial structural diagram of a solder strip missing detection mechanism for removing a power supply and a display according to an embodiment of the present invention.

The component names and designations in the drawings are as follows:

100. a battery string; 10. a battery piece; 20. welding a strip;

1. a clamp assembly; 11. a base; 111. a connecting plate; 12. a splint; 121. a splint main body; 1211. mounting a beam; 1212. a hinge plate; 1213. a hinged support; 1210. avoiding holes; 122. a conductive block; 123. a binding post; 13. a drive member; 2. a display; 21. a box body; 22. an indicator light; 3. a power source; 4. a wire; 5. a wire harness tube.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements related to the present invention are shown in the drawings.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

The present embodiment discloses a series welding machine for welding a welding strip 20 to a battery piece 10 and serially connecting a plurality of battery pieces 10 into a battery string 100 through the welding strip 20.

In addition, the series welder further comprises an EL detection mechanism for detecting whether the battery string 100 is cracked or not and performing cold joint so as to improve the conductivity of the laminated assembly of the battery string 100. Since EL detection is a conventional detection means in the art, detailed description of the specific process of EL detection is omitted here.

In the manufacturing process of the MBB product, the battery string 100 includes a plurality of battery pieces 10, the welding strips 20 are welded on the battery pieces 10, the plurality of battery pieces 10 are sequentially connected through the welding strips 20, and a plurality of parallel circuits are formed on the battery string 100. As shown in fig. 1, for example, four battery slices 10 connected in series in sequence in a battery string 100, the front electrode and the back electrode of each battery slice 10 have 9 main grid positions, one end of the same welding strip 20 between two adjacent battery slices 10 is welded to one main grid position of the front electrode on one battery slice 10, and the other end of the welding strip 20 is welded to the corresponding main grid position of the back electrode of another battery slice 10. It should be noted that the battery string 100 forms nine parallel circuits, and nine welding strips 20 respectively extending outwards from two battery sheets 10 at two ends of the battery string 100 form a positive terminal and a negative terminal of the battery string 100.

During the welding process of the series welder, the loss of the welding strip 20 may occur. Since the plurality of solder strips 20 are provided at both ends of the battery string 100, the EL detection can still be performed even if one or a few solder strips are missing, and the problem that the EL detection mechanism cannot detect the missing solder strips 20 is caused. Moreover, the number of the solder strips 20 on both sides of the battery string 100 is large, the difficulty of observation by human eyes is large, and the detection accuracy and the detection efficiency are low.

In order to solve the above problem, as shown in fig. 2, the present embodiment further discloses a solder strip missing detection mechanism for detecting whether the solder strip 20 of the battery string 100 is missing.

Specifically, the solder strip absence detection mechanism includes two clamp assemblies 1, a display 2, and a power supply 3. The two clamp assemblies 1 are respectively used for clamping a plurality of solder strips 20 extending from the positive terminals and the negative terminals of the plurality of battery strings 100, and the clamp assemblies 1 are electrically connected with the solder strips 20. The display 2 includes a plurality of pilot lamps 22 of being connected with the anchor clamps subassembly 1 electricity, and every welds area 20 and all corresponds and be provided with pilot lamp 22, and many welds area 20 and communicate with the pilot lamp 22 that corresponds through anchor clamps subassembly 1 respectively to form a plurality of solder strip return circuits. If the solder strip 20 is missing in the corresponding solder strip loop, the indicator light 22 connected in series with the solder strip loop does not emit light to remind the inspector that the solder strip 20 is missing in the solder strip loop. The power supply 3 is used to provide power to the plurality of solder strip circuits to illuminate the indicator lights 22.

The battery string 100 is fixed by the clamp assembly 1, and the indicator lamps 22 are respectively connected to a plurality of parallel circuits on the battery string 100 to form a plurality of solder strip loops. When the solder strip loop is missing, the solder strip loop is disconnected, the corresponding indicator lamp 22 is not lighted, the complete solder strip loop of the solder strip 20 is connected, and the corresponding indicator lamp 22 is lighted. Whether the corresponding welding strip loop has the welding strip 20 missing or not is displayed through the on-off state of each indicator lamp 22, so that detection personnel can conveniently check the welding strip loop, and the visual performance is good. Moreover, the detection operation is simple and convenient, the detection accuracy is high, and the product reject ratio is reduced.

According to the series welding machine, the detection function and the integration level of the series welding machine are improved and the detection range of the series welding machine is expanded through the welding strip missing detection mechanism.

As shown in fig. 2, the display 2 includes a box 21 and indicator lamps 22, and the indicator lamps 22 are disposed on the side walls of the box 21 side by side and protrude out of the outer surface of the box 21, so that the inspector can conveniently check the on-off state of the indicator lamps 22. Each parallel circuit on the battery string 100 is connected with the corresponding indicator light 22 in series through a plurality of wires 4, and the box body 21 can fix and protect the indicator light 22 and simultaneously facilitates the arrangement of the wires 4 in the box body 21.

In addition, on the lateral wall of box 21 that installs pilot lamp 22, be carved with corresponding sign or figure in the upper end of pilot lamp 22 or near the position of lower extreme, every sign or every figure correspond with the circuit that connects in parallel on battery string 100 respectively to make things convenient for the detection personnel to be able to look for fast and record the circuit position that takes place to weld and take place for 20 to lack.

Further, the display 2 further comprises an alarm, which may be an audible alarm and is installed in the box 21. When the at least one indicator light 22 is not illuminated, the alarm can issue an alarm to alert the inspector that a missing weld 20 has occurred in the weld loop.

The power supply 3 of this embodiment is a dc power supply, the positive electrode of the power supply 3 is electrically connected to the 9 indicator lights 22 connected in parallel through the lead 4, and the negative electrode of the power supply 3 is electrically connected to the negative electrode terminal of the battery string 100 through the lead 4. Specifically, power 3 and display 2 separately set up, can realize welding and take disappearance detection mechanism modularized design for the change between power 3 and display 2 can not take place to interfere with maintenance operation, and make things convenient for power 3 and display 2 to install in the station of difference according to the demand is nimble.

As shown in fig. 2 and 3, the clamping assembly 1 includes a base 11 and a clamping plate 12, wherein the clamping plate 12 is rotatably disposed on the base 11 and can press the battery string 100 against the base 11 to clamp the solder strip 20 of the corresponding positive terminal or negative terminal on the battery string 100. The two oppositely arranged clamp assemblies 1 are used for clamping the welding strips 20 at two ends of the battery string 100 respectively, so that the battery string 100 is fixed.

In addition, a plurality of wires 4 are arranged on the two clamping plates 12, and when the clamping plates 12 and the base 11 clamp the solder strip 20 together, the plurality of wires 4 on the clamping plates 12 can be respectively conducted with the corresponding solder strips 20, so that the positive terminals and the negative terminals of a plurality of circuits on the battery string 100 are respectively electrically connected with the positive electrode and the negative electrode of the power supply 3, and a plurality of solder strip loops are formed.

Specifically, the clamping plate 12 further includes a clamping plate main body 121 and conductive blocks 122, and the clamping plate main body 121 is provided with a plurality of conductive blocks 122 at intervals along the length direction thereof. When the base 11 is pressed against the clamping plate 12, the conductive block 122 presses the corresponding solder strip 20 against the base 11 and is electrically connected with the corresponding solder strip 20.

Specifically, be provided with terminal 123 on the conducting block 122, terminal 123 and conducting block 122 cooperation installation, with 4 fixed connection of wire on conducting block 122, make wire 4 pass through conducting block 122 and correspond to weld and take 20 the electricity to be connected, need not to carry out accurate location with wire 4 and welding area 20, can realize wire 4 and the firm electricity of welding area 20 and be connected, avoid because wire 4 takes 20 to take place the virtual connection with welding and leads to the false retrieval, be favorable to improving detection accuracy. In addition, the lead 4 and the corresponding welding strip 20 do not need to be connected, the operation is convenient, and the detection efficiency of the welding strip loss detection mechanism is improved.

Further, the end of the conductive block 122 facing the base 11 has a positioning slot (not shown) adapted to the solder strip 20 to limit the solder strip 20.

As shown in fig. 3 and 4, each conductive block 122 of one clamp assembly 1 is electrically connected to the corresponding indicator light 22 through the conducting wire 4, and is electrically connected to the positive electrode of the power supply 3 through the corresponding indicator light 22.

Each conductive block 122 on the other clamp assembly 1 is electrically connected to the negative pole of the power supply 3 through a wire 4.

In other alternative embodiments, each conductive block 122 on one clamp assembly 1 is electrically connected to the corresponding indicator light 22 through the conducting wire 4, and is electrically connected to the positive electrode of the power supply 3 through the indicator light 22.

Each conductive block 122 on the other clamp assembly 1 is electrically connected with the negative electrode of the power supply 3 through one lead 4 after being connected in series, so that the use amount of the lead 4 is reduced, and the structural layout of the lead 4 is optimized.

In this embodiment, all be provided with between splint 12 and the display 2 and between two splint 12 and be had pencil pipe 5, pencil pipe 5 is used for holding wire 4 to make many wires 4 arrange according to predetermined circuit orbit, avoid wire 4 to arrange indiscriminately, be favorable to improving wiring efficiency. Meanwhile, the wire harness pipe 5 is an insulating plastic pipe, is low in cost, can play an insulating protection role for the lead 4, and avoids the danger of damage or electric leakage of the lead 4.

The structure of the gripper assembly 1 will now be described with reference to fig. 3 and 4. The base 11 is a strip-shaped plate and extends in the moving direction of the battery string 100 so as to hold the battery string 100. The base 11 is provided with a cushion block to increase the distance between the clamping plate 12 and the base 11, so that the clamping plate 12 has enough rotating space to avoid interference between the clamping plate 12 and the base 11 in the rotating process. The splint main body 121 comprises a mounting beam 1211, a hinge plate 1212 and a hinge support 1213, and the mounting beam 1211, the hinge plate 1212 and the hinge support 1213 are integrally formed by welding, so that the structural strength and the stability of the splint main body 121 are improved. The mounting beam 1211 extends in parallel to the base 11, the mounting beam 1211 is formed in an L-shaped plate, a mounting groove is formed in a side surface facing the base 11, and the plurality of conductive blocks 122 are fixedly mounted in the mounting groove at equal intervals along the extending direction of the mounting beam 1211. Specifically, the conductive block 122 is connected to the mounting beam 1211 through a bolt, so that the operation is simple and convenient, and the replacement is convenient.

In addition, two hinge supports 1213 are welded to the top surface of the mounting beam 1211 and two hinge plates 1212 are welded to the side walls facing away from the mounting slot. The side edge of the base 11 is welded with a connecting plate 111, and the two hinge plates 1212 are hinged with the connecting plate 111 through a first hinge shaft, so that the clamping plate 12 can rotate around the first hinge shaft.

The clamp assembly 1 of this embodiment further includes a driving member 13, and the driving member 13 can drive the clamp plate main body 121 to drive the conductive block 122 to rotate synchronously, so that the conductive block 122 presses the solder strip 20 against the pad of the base 11, thereby realizing reliable electrical connection between the wire 4 and the solder strip 20.

Specifically, the driving member 13 may be a conventional driving mechanism such as an air cylinder, a hydraulic rod or a linear motor, and the driving member 13 of this embodiment is an air cylinder, which is simple in structure, convenient to install and low in cost. The cylinders are obliquely arranged, the cylinder bodies are hinged on the corresponding hinged supports 1213, and the piston rods of the cylinders are hinged on the connecting plate 111 through second hinged shafts. Through the flexible of cylinder for the cylinder can rotate around the second articulated shaft, and drive splint 1211 stakes relative to the base.

It should be noted that the splint main body 121 of the present embodiment is provided with an avoiding hole 1210 for the lead wire 4 to pass through. The wire harness pipe 5 containing the wires 4 can penetrate through the avoidance hole 1210, so that the wires 4 are prevented from being bent or routed excessively between the clamping plate 12 and the base 11, the length of the wires 4 is reduced, and the arrangement of the wires 4 is optimized.

The plate main body 121 and the base 11 of the present embodiment have the same structure as the jig structure in the EL detection mechanism. The main differences are that: the base and the clamping plate of the clamp in the EL detection mechanism are both conductive bodies, and the clamping plate main body 121 and the base 11 of the embodiment need to be insulated to avoid short circuit of multiple solder strip loops. Therefore, the clamp plate body 121 and the base 11 of the present embodiment can be modified accordingly on the basis of the jig in the EL detecting mechanism.

After EL detects the completion, can change EL detection mechanism's anchor clamps into and weld the area disappearance and detect required anchor clamps structure for weld and take disappearance detection mechanism and EL detection mechanism one set of anchor clamps jointly, simplified and welded the structure that takes disappearance detection mechanism, reduced manufacturing cost. Namely, when the detection of the loss of the welding strip 20 is required, the clamp in the EL detection mechanism is correspondingly modified; when EL detection is needed, the clamp is restored to the original clamp structure. The solder bump missing detection process of the present embodiment may be performed before or after the EL detection, and is not particularly limited herein.

In this embodiment, through carrying out the insulating varnish spraying or pasting the insulating layer with the surface of base in the EL detection mechanism and splint, make it repack for welding base 11 and the splint main part 121 of taking disappearance detection mechanism, the repacking degree of difficulty is little, and is easy and simple to handle, is convenient for carry out the structure operation of restoreing.

For easy understanding, the working process of the solder strip missing detection mechanism of the embodiment is as follows:

after the plurality of battery plates 10 and the welding strips 20 are welded to form the battery string 100, the battery string 100 continues to move along the welding station of the stringer. The stringer is provided with a position sensing mechanism which can identify and position the battery string 100. When the battery string 100 moves to the clamp assembly 1 of the solder strip missing detection mechanism, the piston rod of the cylinder extends out, and the clamp plate main body 121 drives the conductive block 122 to rotate towards the base 11, and the battery string 100 is clamped and fixed. At this time, each conductive block 122 is pressed down on the corresponding solder strip 20 to form a plurality of solder strip loops arranged in parallel, and the power supply 3 is triggered to be switched on and off, so that the power supply 3 can provide power to the plurality of solder strip loops. When the solder strip 20 is not missing in each solder strip loop, each indicator light 22 emits light, and the alarm does not give an alarm. When one or more welding strip loops are in the absence of the welding strip 20, the corresponding indicator lamp 22 does not emit light, and the alarm device gives an alarm to prompt detection personnel to search and rework.

The above embodiments have been described only the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and is not departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. A welding strip missing detection mechanism is used for detecting whether a welding strip (20) of a battery string (100) is missing or not, wherein the battery string (100) comprises a plurality of battery pieces (10), the welding strip (20) is welded on the battery pieces (10), and the battery pieces (10) are sequentially connected through the welding strip (20); it is characterized in that the solder strip missing detection mechanism comprises:

the two clamp assemblies (1) are respectively used for clamping the plurality of welding strips (20) extending out of the positive ends and the negative ends of the plurality of battery strings (100), and the clamp assemblies (1) are electrically connected with the welding strips (20);

the display (2) comprises a plurality of indicator lamps (22) electrically connected with the clamp assembly (1), a plurality of welding strips (20) are communicated with the corresponding indicator lamps (22) through the clamp assembly (1), and a plurality of welding strip loops are formed;

a power supply (3) for providing electrical energy to the plurality of solder strip loops.

2. The solder strip absence detection mechanism according to claim 1, characterized in that the clamp assembly (1) comprises a base (11) and a clamping plate (12), wherein the clamping plate (12) is rotatably arranged on the base (11) to press the solder strip (20) against the base (11).

3. The solder strip missing detection mechanism according to claim 2, wherein the clamp plate (12) comprises a clamp plate main body (121) and conductive blocks (122), the clamp plate main body (121) is provided with a plurality of the conductive blocks (122) at intervals along the length direction thereof, and the conductive blocks (122) can press the corresponding solder strips (20) against the base (11) and are electrically connected with the corresponding solder strips (20).

4. Solder strip absence detection mechanism according to claim 3, characterized in that the end of the conductive block (122) facing the base (11) has a positioning slot adapted to the solder strip (20).

5. The solder strip missing detection mechanism according to claim 3, characterized in that each conductive block (122) in one clamp assembly (1) is electrically connected with the corresponding indicator light (22) through a lead (4) and is electrically connected with the positive pole of the power supply (3) through the indicator light (22); each conducting block (122) in the other clamp assembly (1) is electrically connected with the negative pole of the power supply (3) through a conducting wire (4).

6. The solder strip missing detection mechanism according to claim 3, characterized in that each conductive block (122) in one clamp assembly (1) is electrically connected with the corresponding indicator light (22) through a lead (4) and is electrically connected with the positive pole of the power supply (3) through the corresponding indicator light (22); each conducting block (122) in the other clamp assembly (1) is connected in series and then is electrically connected with the negative electrode of the power supply (3) through a conducting wire (4).

7. The solder strip loss detection mechanism according to claim 5 or 6, wherein the clamp plate main body (121) is provided with an avoidance hole (1210) for the lead wire (4) to pass through.

8. The solder strip missing detection mechanism according to claim 5 or 6, characterized in that a binding post (123) is arranged on the conductive block (122), and the binding post (123) is installed in cooperation with the conductive block (122) to fixedly connect the lead (4) to the conductive block (122).

9. The solder strip absence detection mechanism according to claim 1, wherein the display (2) further comprises an alarm configured to issue an alarm when at least one of the indicator lights (22) is not illuminated.

10. A stringer comprising the solder strip absence detection mechanism of any one of claims 1-9.

Images