CN218386134U - Welding equipment, junction box and junction device - Google Patents

Abstract

The utility model provides a welding equipment, terminal box and termination. The welding apparatus includes: the soldering tin soldering device comprises a driving mechanism, a contact pin and a heating welding head for heating a soldering tin layer; wherein, the heating welding head is provided with an accommodating space; at least part of the contact pin is embedded in the accommodating space; the driving mechanism is connected with the contact pin and used for driving the contact pin to do lifting motion so as to enable the contact pin to contract or extend out of the accommodating space. Can realize the multiaspect welding to the lead-out wire, increase the welding area of lead-out wire reduces the risk that the rosin joint appears in the lead-out wire, and then promotes photovoltaic module's electric conductive property.

Description

Welding equipment, junction box and junction device

Technical Field

The utility model relates to a photovoltaic module makes technical field, especially relates to a welding equipment, terminal box and termination.

Background

With the rapid development of the junction box technology, the technology of the junction box is more mature, and the existing junction box and the outgoing line of the photovoltaic module can be automatically welded.

At present, a layer of soldering tin is generally plated on a copper sheet in a junction box, an outgoing line of a photovoltaic module is lapped on the soldering tin layer on the copper sheet, and then the outgoing line is heated and pressed down through a welding head, so that the soldering tin layer is heated and melted to weld the outgoing line and the copper sheet.

However, the soldering tin layer is only contacted with one surface of the outgoing line, so that the welding area of the outgoing line is small, the risk of insufficient soldering is high, and the conductivity of the photovoltaic module is easily reduced.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention has been made in order to provide a welding apparatus, a junction box, and a wiring device that overcome or at least partially solve the above problems.

In order to solve the above problem, the utility model discloses a welding equipment, welding equipment includes: the soldering tin soldering device comprises a driving mechanism, a contact pin and a heating welding head for heating a soldering tin layer; wherein the content of the first and second substances,

an accommodating space is formed in the heating welding head;

at least part of the contact pin is embedded in the accommodating space;

the driving mechanism is connected with the contact pin and used for driving the contact pin to do lifting motion so as to enable the contact pin to contract or extend out of the accommodating space.

Optionally, the heating horn comprises a first sub-horn and a second sub-horn;

the first sub-welding heads and the second sub-welding heads are arranged at intervals to form the accommodating space.

Optionally, the welding apparatus further comprises: the support device comprises a first support plate, a second support plate and a third support plate, wherein the second support plate and the third support plate are respectively connected to two ends of the first support plate;

the driving mechanism is arranged between the second supporting plate and the third supporting plate and is fixedly connected to one side of the second supporting plate, which faces the third supporting plate;

and the heating welding head is fixedly connected to one side of the third support plate, which is far away from the second support plate.

Optionally, the end of the heating tip for heating the solder layer is a planar structure.

Optionally, one end of the contact pin extending out of the accommodating space is a first end, and the first end is used for extruding a part to be welded;

the cross-sectional shape of the first end includes: one of a V-shape, a U-shape, a trapezoid shape, or an arc shape.

Optionally, the driving mechanism includes one of a cylinder and a motor.

In a second aspect, the embodiment of the utility model provides a still disclose a terminal box, the terminal box corresponds the setting with above-mentioned welding equipment, the terminal box includes: an electric conductor, a solder layer, wherein,

a limiting groove is dug in the welding area of the conductor;

a groove is formed in the bottom wall of the limiting groove and corresponds to a contact pin of the welding equipment;

the soldering tin layer is laid in the limiting groove and used for welding the outgoing line of the photovoltaic module on the electric conductor.

Optionally, the bottom wall of the soldering tin layer is abutted to the bottom wall of the limiting groove, and the side wall of the soldering tin layer is abutted to the side wall of the limiting groove.

Optionally, the solder layer comprises a flat portion and a convex portion;

the straight portion is embedded in the limiting groove, and the protruding portion is embedded in the groove.

Optionally, the groove is arranged along the length direction of the limiting groove, and the length of the groove is the same as that of the limiting groove;

or the groove is arranged along the width direction of the limiting groove, and the length of the groove is the same as the width of the limiting groove.

Optionally, the cross-sectional shape of the groove comprises: one of a V-shape, a U-shape, a trapezoid shape, and an arc shape.

The embodiment of the utility model provides a third aspect still discloses a termination, including above-mentioned welding equipment and terminal box.

The utility model discloses a following advantage:

in the embodiment of the present invention, the driving mechanism can drive the contact pin to contract in the accommodating space; then heating the soldering tin layer by using the heating soldering head; actuating mechanism can drive the contact pin stretches out the accommodation space, so that the contact pin can exert pressure to the lead-out wire for the lead-out wire appears sunkenly, and like this, use actuating mechanism drive the contact pin shrink extremely behind the accommodation space, the surface that the molten soldering tin material can flow to the lead-out wire realizes the multiaspect welding to the lead-out wire, has increased the welding area of lead-out wire, can reduce the risk that the rosin joint appears in the lead-out wire, and then promotes photovoltaic module's electric conductive property.

Drawings

Fig. 1 is a schematic structural view of a welding apparatus of the present invention;

fig. 2 is a schematic view of a part of the structure of a welding apparatus of the present invention;

fig. 3 is a schematic structural view of a junction box of the present invention;

fig. 4 is a schematic structural view of an outgoing line of the present invention before welding;

fig. 5 is a schematic structural view of the lead-out wire after being welded;

fig. 6 is a schematic structural view of a wiring device of the present invention;

fig. 7 is a schematic structural diagram of another wiring device of the present invention.

Description of reference numerals:

11-driving mechanism, 12-pin, 13-heating welding head, 131-first sub welding head, 132-second sub welding head, 133-containing space, 141-first supporting plate, 142-second supporting plate, 143-third supporting plate, 21-electric conductor, 211-limiting groove, 212-groove, 22-soldering tin layer, 221-straight part, 222-convex part and 3-leading-out wire.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

The features of the terms first and second in the description and in the claims of the present application may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more unless otherwise specified. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

In the description of the present invention, it should be understood that the terms "length", "width", "thickness", "upper", "lower", "left", "right", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The embodiment of the utility model provides a specifically disclose welding equipment, as shown in fig. 1, welding equipment specifically can include: a driving mechanism 11, a contact pin 12 and a heating welding head 13 for heating a soldering tin layer 22; wherein, the heating welding head 13 is provided with an accommodating space 133; at least part of the pin 12 is embedded in the accommodating space 133; the driving mechanism 11 may be connected to the pin 12 for driving the pin 12 to move up and down so as to retract or extend the pin 12 out of the receiving space 133.

In the embodiment of the present invention, the driving mechanism 11 can drive the insertion pin 12 to retract in the accommodating space 133; the solder layer 22 is then heated using the heating horn 13; actuating mechanism 11 can drive contact pin 12 stretches out accommodation space 133, so that contact pin 12 can exert pressure to lead-out wire 3 for lead-out wire 3 appears sunken, and like this, use actuating mechanism 11 drive contact pin 12 shrink extremely behind accommodation space 133, the surface that molten soldering tin material can flow to lead-out wire 3 realizes the multiaspect welding to lead-out wire 3, has increased the welding area of lead-out wire 3, can reduce lead-out wire 3 and appear the risk of rosin joint, and then promote photovoltaic module's electric conductive property.

The embodiment of the utility model provides an in heating bonding tool 13 can be used for heating soldering tin layer 22 to melt the soldering tin material in soldering tin layer 22, accomplish the welding. In the embodiment of the present invention, the heating welding head 13 can be specifically used for welding the outgoing line 3 and the junction box of the photovoltaic module, and the other situations can be referred to the setting.

In particular, the welding device may further comprise a driving member, which may be connected to the heating horn 13, such that the driving member drives the heating horn 13 to move vertically or horizontally.

Specifically, the driving piece can be cylinder or motor etc. and driving piece and actuating mechanism 11 can be same drive arrangement, perhaps, driving piece and actuating mechanism 11 also can be independent setting respectively, specifically can set up according to the actual demand, the embodiment of the utility model provides a do not do specifically to this and restrict.

Specifically, the heating tip 13 may be provided with a receiving space 133, and the receiving space 133 may be used for receiving the pin 12. Accommodation space 133 specifically can be the holding tank that sets up on heating bonding tool 13, and perhaps, heating bonding tool 13 can include two sub parts, and two sub part intervals set up and can form accommodation space 133, and the concrete structure of accommodation space 133 can set up according to actual demand, the embodiment of the utility model provides a do not do specifically and restrict.

The embodiment of the present invention provides an actuating mechanism 11 can be used for providing power, actuating mechanism 11 is connected with contact pin 12, and actuating mechanism 11 can drive contact pin 12 to move to make contact pin 12 can contract or stretch out accommodation space 133. Specifically, as shown in fig. 6 and 7, the driving mechanism 11 can drive the pin 12 to move up and down, and during the downward movement of the pin 12, the outgoing line 3 can be pressed to deform; the pins 12 can be retracted in the receiving spaces 133 during the upward movement.

Alternatively, the driving mechanism 11 may include one of a cylinder and a motor.

The embodiment of the present invention provides an embodiment, the driving mechanism 11 can be a cylinder or a motor, which can improve the convenience of the driving mechanism 11 applying driving force to the contact pin 12.

Optionally, the driving mechanism 11 may further include a power source and a magnetic member to drive the pin 12 to retract or extend out of the receiving space 133 by the lorentz force.

Specifically, the contact pin 12 can be telescopically connected to the heating welding head 13, so that the contact pin 12 can extend out of or retract into the accommodating space 133, and the structural diversity of the welding equipment can be improved. Specifically, with the pins 12 contracted in the accommodating spaces 133, the pins 12 are retracted to the outer surface of the heating tip 13; with the pins 12 extending out of the accommodating space, the pins 12 protrude from the outer surface of the heating tip 13.

Specifically, the contact pin 12 may be configured to apply pressure to the to-be-welded component, so that the to-be-welded component is deformed in a concave manner without changing the conductive characteristic of the outgoing line 3, and thus, the melted solder may flow into the concave portion of the to-be-welded component, and the welding area of the to-be-welded component is increased.

Specifically, the pin 12 may be a plate-shaped structure or a rod-shaped structure, and may be specifically set according to actual requirements, which is not specifically limited by the embodiment of the present invention.

Optionally, one end of the pin 12 extending out of the accommodating space 133 is a first end, and the first end is used for extruding a part to be welded; the cross-sectional shape of the first end includes: one of a V-shape, a U-shape, a trapezoid shape, or an arc shape.

The embodiment of the utility model provides an in, the cross sectional shape of the first end of contact pin 12 includes one of V-arrangement, U-shaped, trapezoidal or arc for the structure of the first end of contact pin 12 can be one of V-arrangement, U-arrangement, trapezoidal or arc, and the contact pin 12 of being convenient for treats the welding piece and exerts pressure, makes to treat that the sunken deformation appears in the welding piece, and then effectively guarantees that soldering tin material can flow to the depressed part of treating the welding piece, and the welding area of welding piece is treated in the increase.

Specifically, in the embodiment of the utility model provides an in, treat that the welding member can be photovoltaic module's lead-out wire 3, in practical application, treat that the welding member can also be binding post etc. on the circuit board, specifically can set up according to the actual demand, the embodiment of the utility model provides a do not do specific limit to this.

Specifically, when the first end of the pin 12 is in a V-shaped structure, the pin 12 can extrude the part to be welded, so that a V-shaped recess is formed on the part to be welded; when the first end of the pin 12 is in a U-shaped structure, the pin 12 can extrude a part to be welded, so that a U-shaped recess is formed on the part to be welded; when the first end of the pin 12 is in a trapezoidal structure, the pin 12 can extrude a part to be welded, so that a trapezoidal recess is formed on the part to be welded; when the first end of the contact pin 12 is formed in an arc structure, the contact pin 12 may press the member to be welded, so that an arc-shaped recess is formed on the member to be welded.

Alternatively, the heating horn 13 may include a first sub-horn 131 and a second sub-horn 132; the first sub-soldering tip 131 and the second sub-soldering tip 132 are spaced apart from each other to form an accommodating space 133.

The embodiment of the present invention provides an accommodating space 133 formed by the first sub-welding head 131 and the second sub-welding head 132 at an interval, which is simple and convenient, and can simplify the structure of the heating welding head 13.

In particular, both the first sub-soldering tip 131 and the second sub-soldering tip 132 may be used to heat the solder layer 22. With the pins 12 extending out of the accommodating space 133, the pins 12 may protrude from the first sub-soldering tip 131 and the second sub-soldering tip 132, respectively, so that the pins 12 may apply pressure to the lead-out wires 3.

Optionally, as shown in fig. 2, the welding apparatus may further include: a first support plate 141, and a second support plate 142 and a third support plate 143 connected to both ends of the first support plate 141, respectively; the driving mechanism 11 is disposed between the second supporting plate 142 and the third supporting plate 143, and is fixedly connected to a side of the second supporting plate 142 facing the third supporting plate 143; the heating horn 13 is fixedly attached to a side of the third support plate 143 remote from the second support plate 142.

In the embodiment of the present invention, the second supporting plate 142 and the third supporting plate 143 are respectively connected to two ends of the first supporting plate 141, so as to form the frame structure of the welding device, and further facilitate fixing the driving mechanism 11 and the heating welding head 13.

Specifically, the third supporting plate 143 may be a base of the welding apparatus for supporting and fixing the heating horn 13.

Specifically, can be fixed through modes such as welding, bonding between first backup pad 141, second backup pad 142 and the third backup pad 143, or also can be integrated into one piece structure, specifically can set up according to the actual demand, the embodiment of the utility model provides a do not do specifically to this and restrict.

Specifically, the second supporting plate 142 and the third supporting plate 143 are respectively connected to two ends of the first supporting plate 141, and may form an "i" shaped frame or a "concave" shaped frame, or the frame of the welding apparatus may also be a rectangular frame, and may be specifically set according to actual requirements, which is not specifically limited by the embodiment of the present invention.

Alternatively, the end of the heating horn 13 for heating the solder layer 22 may be a planar structure.

The embodiment of the utility model provides an in, the tip that is used for heating soldering tin layer 22 with heating bonding tool 13 sets up to planar structure, can effectively guarantee heating bonding tool 13 and the area of contact on soldering tin layer 22, and then effectively guarantees the heating effect of heating bonding tool 13 to soldering tin layer 22.

The embodiment of the utility model provides an in welding equipment include following advantage at least:

in the embodiment of the present invention, the driving mechanism can drive the contact pin to contract in the accommodating space; then heating the soldering tin layer by using the heating welding head; actuating mechanism can drive the contact pin stretches out the accommodation space, so that the contact pin can exert pressure to the lead-out wire for the lead-out wire appears sunkenly, and like this, use actuating mechanism drive the contact pin shrink extremely behind the accommodation space, the surface that the molten soldering tin material can flow to the lead-out wire realizes the multiaspect welding to the lead-out wire, has increased the welding area of lead-out wire, can reduce the risk that the rosin joint appears in the lead-out wire, and then promotes photovoltaic module's electric conductive property.

In a second aspect, the embodiment of the present invention further discloses a junction box, the junction box can correspond to the setting with the above welding device, as shown in fig. 3, the junction box can include: the soldering terminal comprises a conductor 21 and a soldering tin layer 22, wherein a limiting groove 211 is dug in a soldering area of the conductor 21; a groove 212 is formed in the bottom wall of the limiting groove 211, and the groove 212 is arranged corresponding to the pin 12 of the welding equipment; the solder layer 22 can be laid in the limiting groove 211 and used for soldering the lead-out wires 3 of the photovoltaic module on the electric conductors 21.

The embodiment of the utility model provides an in, the soldering tin layer 22 is laid in spacing groove 211, under the condition of using soldering tin layer 22 to weld lead-out wire 3, can put lead-out wire 3 on soldering tin layer 22, then use heating bonding tool 13 to heat soldering tin layer 22, and use contact pin 12 extrusion lead-out wire 3, so that the part of lead-out wire 3 is sunken in recess 212, and like this, the molten soldering tin material can spill over to the surface of lead-out wire 3, make the 3 many faces of lead-out wire encircle the tin, realize the multiaspect welding to lead-out wire 3, increase lead-out wire 3's bonding area, avoid the rosin joint.

Specifically, the conductor 21 may be a metal member having electrical conductivity, and the lead wire 3 is soldered to the conductor 21, whereby the electrical connection between the conductor 21 and the lead wire 3 can be achieved.

Specifically, a limiting groove 211 is dug in the soldering area of the conductor 21 to facilitate the placement of the solder layer 22 and the lead wires 3. The area of the stopper groove 211 may be larger than or equal to the area of the lead-out wire 3 overlapping the conductor 21. The height of spacing groove 211 can be unanimous with the thickness of lead-out wire 3, perhaps is higher than the thickness of lead-out wire 3, specifically can set up according to actual demand, the embodiment of the utility model provides a do not do specifically to this and restrict.

Specifically, the bottom wall of the limiting groove 211 is provided with a groove 212, so that the pin 12 can extrude the outgoing line 3 to deform. The groove 212 may be provided corresponding to the shape of the pin 12 so that the pin 12 squeezes the lead-out wires 3 into the groove 212.

Specifically, as shown in fig. 4, before soldering, the heating tip 13 may be located above the conductive body 21, the solder layer 22 may be embedded in the limiting groove 211, and the lead wires 3 may be placed on the solder layer 22. In the process of welding the lead wires 3, the lead wires 3 may be heated by the heating tip 13 to melt the solder layer 22; after the first preset time interval, the pin 12 is used for applying force to the outgoing line 3, so that the outgoing line 3 generates concave deformation and enters the groove 212; after a second predetermined time interval, the pins 12 retract back into the accommodating spaces 133; with the heating of the heating tip 13, as shown in fig. 5, the solder in the solder layer 22 is melted and flows to the upper surface and the side surface of the lead-out wire 3, so that the lead-out wire 3 has solder filling on its multiple surfaces, and the risk of cold joint can be greatly reduced. Wherein, first preset time interval can set up according to the actual demand, second preset time interval can set up according to the actual demand, the embodiment of the utility model provides a do not do specific limit to this.

Alternatively, the cross-sectional shape of the groove 212 may include: one of a V-shape, a U-shape, a trapezoid shape, and an arc shape.

In the embodiment of the present invention, the cross-sectional shape of the groove 212 is one of V-shape, U-shape, trapezoid, and arc, so as to improve the structural diversity of the groove 212.

Specifically, when the sectional shape of the groove 212 is V-shaped, the groove 212 may be a V-shaped groove; when the cross-sectional shape of the groove 212 is U-shaped, the groove 212 may be a U-shaped groove; when the cross-sectional shape of the groove 212 is trapezoidal, the groove 212 may be a trapezoidal groove; when the cross-sectional shape of the groove 212 is an arc, the groove 212 may be an arc-shaped groove.

Specifically, the shape of the first end of the pin 12 may be set to correspond to the shape of the groove 212, so as to further improve the convenience of the pin 12 in pressing and deforming the lead-out wires 3.

Illustratively, the first end of the pin 12 is shaped as a V-shaped structure, and the corresponding groove 212 is a V-shaped groove; the first end of pin 12 is shaped as an arc and the corresponding recess 212 is an arc.

Alternatively, the bottom wall of the solder layer 22 may abut against the bottom wall of the limiting groove 211, and the side wall of the solder layer 22 may abut against the side wall of the limiting groove 211.

The embodiment of the utility model provides an in, the diapire butt of soldering tin layer 22 and the diapire butt of spacing groove 211, the lateral wall butt of soldering tin layer 22 and the lateral wall butt of spacing groove 211 for soldering tin layer 22 can fill up spacing groove 211, and the soldering tin material after being convenient for melt overflows to the upper surface and the side of lead-out wire 3, effectively guarantees the multiaspect welding to lead-out wire 3.

Specifically, in the process of welding the outgoing line 3, the pin 12 extrudes the outgoing line 3, so that the outgoing line 3 is extruded into the groove 212, and as the solder layer 22 is fully paved in the limiting groove 211, and the melted solder has certain fluidity, the solder can flow to the side surface or the upper surface of the outgoing line 3, and then multi-surface welding of the outgoing line 3 can be realized.

Alternatively, the solder layer 22 may include a flat portion 221 and a bump portion 222; the straight portion 221 may be embedded in the limiting groove 211, and the protruding portion 222 may be embedded in the groove 212.

The embodiment of the utility model provides an in, soldering tin layer 22 includes straight portion 221 and bellying 222, and straight portion 221 inlays and establishes in spacing groove 211, and bellying 222 inlays and establishes in recess 212, can further increase the quantity of solder material, effectively guarantees the welding effect to lead-out wire 3, avoids appearing the phenomenon of rosin joint.

In particular, the structure of the protrusions 222 of the solder layer 22 may correspond to the structure of the recesses 212 such that the solder fills the entire recesses 212.

Alternatively, the groove 212 may be formed along the length direction of the stopper groove 211, and the length of the groove 212 may be the same as that of the stopper groove 211.

The embodiment of the utility model provides an in, when recess 212 set up along the length direction of spacing groove 211, the length of recess 212 is the same with the length of spacing groove 211 for recess 212 can be a style of calligraphy groove, can further improve the reliability that contact pin 12 extrudes into recess 212 with lead-out wire 3.

In another optional embodiment of the present invention, the groove 212 may be disposed along the width direction of the limiting groove 211, and the length of the groove 212 may be the same as the width of the limiting groove 211.

The embodiment of the utility model provides an in, when recess 212 set up along the width direction of spacing groove 211, the width direction of recess 212 is the same with the width of spacing groove 211 for recess 212 can be a straight type groove, can further improve the reliability that contact pin 12 extrudes into recess 212 with lead-out wire 3.

Optionally, the junction box may include a limiting plate; the limiting plate is arranged in the welding area of the conductor 21 in a surrounding manner, and forms the limiting groove 211.

The embodiment of the utility model provides an in, enclose by the limiting plate and close formation spacing groove 211, can avoid the soldering tin material after melting to leak.

Specifically, the height of limiting plate can be unanimous with the thickness of lead-out wire 3, perhaps is higher than the thickness of lead-out wire 3, specifically can set up according to the actual demand, the embodiment of the utility model provides a do not do specifically to this and restrict.

The embodiment of the utility model provides an in the terminal box include following advantage at least:

in the embodiment of the present invention, the driving mechanism can drive the contact pin to contract in the accommodating space; then heating the soldering tin layer by using the heating soldering head; actuating mechanism can drive the contact pin stretches out the accommodation space, so that the contact pin can exert pressure to the lead-out wire for the lead-out wire appears sunkenly, and like this, use actuating mechanism drive the contact pin shrink extremely behind the accommodation space, the surface that the molten soldering tin material can flow to the lead-out wire realizes the multiaspect welding to the lead-out wire, has increased the welding area of lead-out wire, can reduce the risk that the rosin joint appears in the lead-out wire, and then promotes photovoltaic module's electric conductive property.

The embodiment of the utility model provides a third aspect still discloses a termination, specifically can include above-mentioned welding equipment and terminal box.

Specifically, the welding device may be used to weld the junction box and the outgoing line 3 in the photovoltaic module, and the welding device may be disposed corresponding to the junction box.

Specifically, the process of soldering the junction box and the lead-out wires 3 of the photovoltaic module using the soldering apparatus may include:

the first step is as follows: placing the lead-out wires 3 on the solder layer 22 in the electrical conductor 21 in the terminal box;

the second step is that: aligning a heating welding head 13 of the welding equipment with a lead-out wire 3, and aligning a pin 12 of the welding equipment with a groove 212 in an electric conductor 21;

a third step; the heating welding head 13 is abutted against the outgoing line 3 for heating and warming;

the fourth step: after the heating welding head 13 is heated for a first preset time interval, the driving mechanism 11 is adopted to drive the pin 12 to extend out of the accommodating space 133, so that the pin 12 extrudes the outgoing line 3, and the outgoing line 3 is extruded and deformed;

the fifth step: after a second preset time interval, the driving mechanism 11 is used to drive the pin 12 to retract into the accommodating space 133;

and a sixth step: the heating welding head 13 continues to heat, and the solder material to be heated and melted flows to the upper surface and the side surface of the outgoing line 3, so that multi-surface welding of the outgoing line 3 is completed.

The embodiment of the utility model provides an in termination include following advantage at least:

in the embodiment of the present invention, the driving mechanism can drive the contact pin to contract in the accommodating space; then heating the soldering tin layer by using the heating soldering head; actuating mechanism can drive the contact pin stretches out the accommodation space, so that the contact pin can exert pressure to the lead-out wire for the lead-out wire appears sunken, like this, is using actuating mechanism drives the contact pin shrink extremely behind the accommodation space, the surface that fused soldering tin material can flow to the lead-out wire realizes the multiaspect welding to the lead-out wire, has increased the welding area of lead-out wire, can reduce the risk that the rosin joint appears in the lead-out wire, and then promotes photovoltaic module's electric conductive property.

Finally, it should also be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or terminal apparatus that comprises the element.

The above detailed descriptions of the welding equipment, the junction box and the wiring device provided by the present invention are provided, and the detailed examples are applied herein to explain the principle and the implementation of the present invention, and the descriptions of the above embodiments are only used to help understand the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be changes in the specific embodiments and the application range, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims (12)

1. A welding apparatus, characterized in that the welding apparatus comprises: the soldering tin soldering device comprises a driving mechanism, a contact pin and a heating welding head for heating a soldering tin layer; wherein the content of the first and second substances,

the heating welding head is provided with an accommodating space;

at least part of the contact pin is embedded in the accommodating space;

the driving mechanism is connected with the contact pin and used for driving the contact pin to do lifting motion so as to enable the contact pin to contract or extend out of the accommodating space.

2. The welding apparatus of claim 1, wherein the heating horn comprises a first sub-horn and a second sub-horn;

the first sub-welding heads and the second sub-welding heads are arranged at intervals to form the accommodating space.

3. The welding apparatus of claim 1, further comprising: the support device comprises a first support plate, a second support plate and a third support plate, wherein the second support plate and the third support plate are respectively connected to two ends of the first support plate;

the driving mechanism is arranged between the second supporting plate and the third supporting plate and is fixedly connected to one side of the second supporting plate, which faces the third supporting plate;

and the heating welding head is fixedly connected to one side of the third support plate, which is far away from the second support plate.

4. The soldering apparatus according to claim 1, wherein the end of the heated soldering tip for heating the solder layer is planar.

5. The welding equipment as claimed in claim 1, wherein the end of the pin extending out of the accommodating space is a first end, and the first end is used for extruding a part to be welded;

the cross-sectional shape of the first end includes: one of a V-shape, a U-shape, a trapezoid shape, or an arc shape.

6. The welding apparatus of claim 1, wherein the drive mechanism comprises one of a cylinder, a motor.

7. A junction box provided in correspondence with the welding device according to any one of claims 1 to 6, characterized in that it comprises: an electrical conductor, a solder layer, wherein,

a limiting groove is dug in the welding area of the conductor;

a groove is formed in the bottom wall of the limiting groove and corresponds to a contact pin of the welding equipment;

the soldering tin layer is laid in the limiting groove and used for welding the outgoing line of the photovoltaic module on the electric conductor.

8. The terminal box according to claim 7, wherein the bottom wall of the solder layer abuts against the bottom wall of the limiting groove, and the side wall of the solder layer abuts against the side wall of the limiting groove.

9. The terminal block of claim 7, wherein the solder layer includes a flat portion and a raised portion;

the straight portion is embedded in the limiting groove, and the protruding portion is embedded in the groove.

10. The junction box of claim 7, wherein the groove is disposed along a length direction of the limiting groove, and the length of the groove is the same as that of the limiting groove;

or the groove is arranged along the width direction of the limiting groove, and the length of the groove is the same as the width of the limiting groove.

11. The junction box of claim 7, wherein a cross-sectional shape of said recess comprises: one of V-shaped, U-shaped, trapezoidal and arc-shaped.

12. A wiring device comprising the welding apparatus of any one of claims 1 to 6 and the junction box of any one of claims 7 to 11.

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