Welding tool for inductor

Abstract

The utility model discloses a welding tool of an inductor. The welding tool comprises a welding base, a coil protection plate and a cover plate. The welding base is used for supporting an inductor to be welded; one end of the cover plate is hinged to one end of the welding base, and the cover plate is used for opening and covering the welding base; the coil protection plate is used for covering the surface of a coil of the inductor, the edge of the coil protection plate is sunken inwards to form an avoiding notch, and the avoiding notch is used for avoiding the joint of the coil and a busbar; the cover plate is used for pressing the coil protection plate on the surface of a coil, and the plate surface of the cover plate is provided with an avoiding area which is used for avoiding the joint of the coil and a busbar. According to the scheme, effective fixing of the inductor can be achieved, the technical problems of existing manual fixing in the aspects of safety, efficiency and quality are solved, and the defects in the prior art are overcome.

Description

TECHNICAL FIELD

[0001] The utility model relates to sensor production equipment technical field especially relates to a welding tool of inductor. BACKGROUND

[0002] Inductor is the element that can transform electrical energy into magnetic energy and store up, generally includes the magnetic core and the coil around the surface of magnetic core. Inductor is used for hindering the change of current, if inductance is in the state without current, circuit connects when it will try to hinder the current, and if in the state with current, circuit disconnects, inductance will try to maintain the current unchanged, also called electric reactor.

[0003] In inductor, busbar is usually used to connect the lead-out end of inductor, or connected with other circuit elements / loads to transmit current, in addition, busbar can also connect multiple inductors in parallel or series to simplify the connection mode of circuit. Therefore, busbar plays an important role in connection and transmission in inductor, which can improve the performance and reliability of circuit.

[0004] In the prior art, when welding busbar, busbar is generally connected with the lead-out end of inductor by artificial fixing mode. But artificial fixing mode has many disadvantages in safety, efficiency and quality, for example: first, artificial fixing mode needs the operator to manually adjust the position of busbar and coil, which is complex and time-consuming, resulting in low production efficiency. Second, artificial fixing can not guarantee the close contact of busbar and coil, which may cause position deviation during welding, affecting the welding quality; in addition, the stability of manual operation is poor, and it is easy to appear loose or misplacement. Third, artificial fixing and welding need the operator to have high technical level and experience, otherwise it is easy to appear welding defects, such as unfirm welding point, excessive or insufficient soldering tin, etc. Fourth, during the welding process, the operator may directly contact high-temperature soldering tin and electrical equipment, which has the risk of scalding and electric shock.

[0005] Therefore, it is urgent to need a welding tool of inductor to realize the effective fixing of inductor and solve the technical problems of existing artificial fixing in safety, efficiency and quality. UTILITY MODEL CONTENT

[0006] The utility model aims at providing a welding tool of inductor, which can realize the effective fixing of inductor, solve the technical problems of existing artificial fixing in safety, efficiency and quality, and overcome the deficiencies in the prior art.

[0007] To achieve this purpose, the utility model adopts the following technical solutions:

[0008] A welding tool for an inductor, comprising a welding base, a coil protection plate and a cover plate; the welding base is used to support the inductor to be welded; one end of the cover plate is hinged to one end of the welding base, and the cover plate is used to open and cover the welding base;

[0009] The coil protection plate is used to cover the surface of the coil of the inductor, and the edge of the coil protection plate is inwardly recessed to form a clearance gap, which is used to avoid the connection between the coil and the bus bar;

[0010] The cover plate is used to press the coil protection plate against the surface of the coil, and the surface of the cover plate is provided with a clearance area for avoiding the connection between the coil and the bus bar.

[0011] Preferably, the welding base comprises a mounting platform, a support block and a support column; the support block is protrusively mounted on both sides of the middle part of the mounting platform, and the support block is used to abut against the magnetic core of the inductor; the support column is provided with two, and the two support columns are protrusively mounted on the mounting platform, and the two support columns are located on the diagonal line of the mounting platform, and the top ends of the two support columns are respectively used to abut against the cylinder of the inductor.

[0012] Preferably, the welding base further comprises a hinge seat and a locking seat, and the hinge seat and the locking seat are respectively protrusively mounted on both sides of the mounting platform;

[0013] One end of the cover plate is hinged to the top end of the hinge seat;

[0014] The other end of the cover plate is provided with a locking position, and the locking seat locks and unlocks the cover plate through the locking position.

[0015] Preferably, the locking seat comprises a locking base, an elastic member, a clamping block and a support beam;

[0016] The locking base is protrusively mounted on one side of the mounting platform; the clamping block is telescopically mounted on the upper part of the inner wall of the locking base through the elastic member; the support beam is protrusively and horizontally extendedly mounted on the upper part of the inner wall of the locking base, and the upper surface of the support beam is used to abut against the bottom surface of the cover plate;

[0017] When the cover plate is in the locked state, the clamping block passes through the locking position and clamps the edge of the locking position, and the bottom surface of the cover plate abuts against the upper surface of the support beam.

[0018] Preferably, the welding tool further comprises a pressing piece, which is mounted on the cover plate and is arranged close to the clearance area, and the pressing piece is used to press the bus bar against the surface of the coil.

[0019] Preferably, the welding tool further comprises a pressing rubber protrudingly installed on the bottom surface of the pressing sheet and used for abutting against the bus bar.

[0020] Preferably, the plate surface of the coil protection plate is provided with an avoiding position for avoiding the joint of the NTC sensor and the NTC temperature signal transmission line of the inductor.

[0021] The avoiding position is used for avoiding the joint of the NTC sensor and the NTC temperature signal transmission line.

[0022] The technical scheme provided by the utility model can have the following beneficial effects:

[0023] In order to improve the welding quality of the inductor and ensure the reliability of long-term use, the technical scheme further provides a welding tool for fixing the inductor, which comprises a welding base, a coil protection plate and a cover plate. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a structural schematic view of the welding tool of the inductor.

[0025] Figure 2 is a structural schematic view of the welding base and the cover plate in the welding tool of the inductor.

[0026] Figure 3 is a side view of the welding base and the cover plate in the welding tool of the inductor.

[0027] Figure 4 is a structural schematic view of the coil protection plate in the welding tool of the inductor.

[0028] Figure 5 is an installation schematic view of step (1) in the installation method of the welding tool of the inductor.

[0029] Figure 6 is an installation schematic view of step (2) in the installation method of the welding tool of the inductor.

[0030] Figure 7 is an installation schematic view of step (3) in the installation method of the welding tool of the inductor.

[0031] Figure 8 is a structural schematic view of the welding tool of the inductor after welding.

[0032] Wherein:

[0033] Welding base 131, mounting platform 1311, support block 1312, support column 1313, hinge seat 1314, locking seat 1315, locking base 13151, clamping block 13152, support beam 13153, coil protection plate 132, avoiding notch 1321, avoiding position 1322, cover plate 133, avoiding area 1331, locking position 1332, pressing piece 134, pressing glue 135;

[0034] Inductor 3, coil 31, busbar 32, magnetic core 33, cylinder column 34, NTC temperature signal transmission line 35. DETAILED DESCRIPTION

[0035] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0036] The technical solution provides a welding tool for fixing an inductor, which comprises a welding base 131, a coil protection plate 132 and a cover plate 133; the welding base 131 is used for supporting an inductor 3 to be welded; one end of the cover plate 133 is hinged to one end of the welding base 131, and the cover plate 133 is used for opening and covering the welding base 131;

[0037] The coil protection plate 132 is used for covering the surface of the coil 31 of the inductor 3, and the edge of the coil protection plate 132 is inwardly recessed to form an avoiding notch 1321, which is used for avoiding the connection between the coil 31 and the busbar 32;

[0038] The cover plate 133 is used for pressing the coil protection plate 132 to the surface of the coil 31, and the surface of the cover plate 133 is provided with an avoiding area 1331, which is used for avoiding the connection between the coil 31 and the busbar 32.

[0039] In order to realize effective fixing of the inductor and solve the technical problems of safety, efficiency and quality of the existing manual fixing, the technical solution further provides a welding tool 13 for fixing an inductor 3, as shown in Figures 1-4 The welding tool 13 comprises a welding base 131, a coil protection plate 132 and a cover plate 133, which can not only realize effective fixing between the inductor 3 and its to-be-welded parts, but also protect the coil 31 from high welding temperature, so as to prevent the coil 31 of the inductor 3 from aging or melting of the insulating layer, and even damage the magnetic core 33 of the inductor 3.

[0040] The mounting method of the welding tool 13 of the present solution is as follows: (1) as shown in Figure 5 , place the inductor 3 (magnetic core 33 and coil 31) to be welded on the welding base 131; (2) as shown in Figure 6 , cover the coil protection plate 132 on the surface of the coil 31 to prevent excessive temperature from directly acting on the insulating layer of the coil 31, thereby causing the insulating layer of the coil 31 to age or melt, and even damaging the magnetic core 33 of the inductor 3; (3) as shown in Figure 7 , place the bus bar 32 to be welded on the top of the coil 31, and connect the bus bar 32 with the lead-out end of the coil 31; (4) as shown in Figure 1 , close the cover plate 133, which can prevent the coil protection plate 132 from being displaced during welding, effectively ensuring that the coil protection plate 132 plays a protective role for the coil 31. As shown in Figure 8 , after the welding tool of the present solution is welded, the structure diagram after the cover plate 133 is opened and the coil protection plate 132 is removed.

[0041] Further, the welding base 131 includes a mounting platform 1311, a support block 1312, and a support column 1313; the support block 1312 is protrusively mounted on both sides of the middle part of the mounting platform 1311, and the support block 1312 is used to abut against the magnetic core 33 of the inductor 3; the support column 1313 is provided with two, and the two support columns 1313 are protrusively mounted on the mounting platform 1311, and the two support columns 1313 are located on the diagonal lines of the mounting platform 1311, and the top ends of the two support columns 1313 are respectively used to abut against the cylinder column 34 of the inductor 3.

[0042] In an embodiment of the present solution, the welding base 131 includes a mounting platform 1311, a support block 1312, and a support column 1313; wherein the support block 1312 is used to support the magnetic core 33 of the inductor 3, and the support column 1313 is used to support the cylinder column 34 of the inductor 3, which is beneficial to improve the installation stability of the inductor 3 on the welding base 131, has a simple structure, and has reliable performance.

[0043] It should be noted that in order to facilitate the fixation of the inductor on some power supply devices, a cylinder column (generally made of metal) with a through hole in the middle is generally arranged around the inductor, and the through hole in the middle of the cylinder column is used to pass through a screw or bolt for installation and fixation, thereby achieving the fixation of the inductor. In order to facilitate the protection and installation of the inductor, the cylinder column is generally connected with the magnetic core and the coil of the inductor through an injection body to ensure good electrical insulation, and the specific structure is referred to the Chinese invention patent "Inductor with temperature detection" with the publication number CN115769321A.

[0044] Further, the welding base 131 further comprises a hinged seat 1314 and a locking seat 1315, which are respectively protrudingly installed on two sides of the installation platform 1311;

[0045] One end of the cover plate 133 is hinged to the top end of the hinged seat 1314.

[0046] The other end of the cover plate 133 is provided with a locking position 1332, and the locking seat 1315 locks and unlocks the cover plate 133 through the locking position 1332.

[0047] In addition, in order to facilitate the opening and closing of the cover plate 133, the welding base 131 is additionally provided with the hinged seat 1314 and the locking seat 1315, and one end of the cover plate 133 is hinged to the top end of the hinged seat 1314, so as to facilitate the swinging of the cover plate 133 relative to the welding base 131, and the cover plate 133 is locked and unlocked through the locking seat 1315, which is simple in structure and convenient to operate.

[0048] Further, the locking seat 1315 comprises a locking base 13151, an elastic member, a clamping block 13152 and a support beam 13153.

[0049] The locking base 13151 is protrudingly installed on one side of the installation platform 1311; the clamping block 13152 is telescopically installed on the upper inner wall of the locking base 13151 through the elastic member; and the support beam 13153 is protrudingly installed on the upper inner wall of the locking base 13151 in a horizontally extending manner, and the upper surface of the support beam 13153 is used to abut against the bottom surface of the cover plate 133.

[0050] When the cover plate 133 is in the locked state, the clamping block 13152 passes through the locking position 1332 and clamps the edge of the locking position 1332, and the bottom surface of the cover plate 133 abuts against the upper surface of the support beam 13153.

[0051] In one embodiment, the locking seat 1315 of the present scheme comprises a locking base 13151, an elastic member (not labeled in the figure), a clamping block 13152 and a support beam 13153, and the clamping block 13152 is quickly unlocked and locked by being telescopically arranged, which is beneficial to improve the installation speed of the operator in installing the inductor 3 to be welded on the welding tool 13.

[0052] When the cover plate 133 is in the unlocked state, the cover plate 133 swings with the top end of the hinged seat 1314 as the axis.

[0053] When the cover plate 133 is in the locked state, as shown in Figure 3As shown, the clamping block 13152 passes through the locking position 1332 and clamps the edge of the locking position 1332, and the bottom surface of the cover plate 133 abuts against the upper surface of the support beam 13153.

[0054] Further, the welding tool 13 further comprises a pressing sheet 134 installed on the cover plate 133, and the pressing sheet 134 is arranged close to the avoiding area 1331, and the pressing sheet 134 is used to press the bus bar 32 against the surface of the coil 31.

[0055] In another preferred embodiment of the present technical solution, the welding tool 13 is further provided with a pressing sheet 134 for pressing the bus bar 32 against the surface of the coil 31, so as to avoid displacement of the bus bar 32 during welding, thereby ensuring the welding quality.

[0056] Further, the welding tool 13 further comprises a pressing sheet 134 installed on the cover plate 133, and the pressing sheet 134 is arranged close to the avoiding area 1331, and the pressing sheet 134 is used to press the bus bar 32 against the surface of the coil 31.

[0057] As a more preferred embodiment of the above embodiment, the pressing sheet 134 is further provided with a pressing rubber 135 protruding from the bottom surface of the pressing sheet 134, and the elastic pressing rubber 135 avoids hard contact between the pressing sheet 134 and the inductor 3, thereby avoiding damage to the inductor 3.

[0058] Preferably, the material of the pressing rubber 135 is rubber, silicone or the like.

[0059] Further, the surface of the coil protection plate 132 is provided with an avoiding position 1322 for avoiding the connection between the NTC sensor and the NTC temperature signal transmission line 35 of the inductor 3.

[0060] The avoiding area 1331 is also used to avoid the connection between the NTC sensor and the NTC temperature signal transmission line 35.

[0061] Similarly, referring to the Chinese invention patent CN115769321A "Inductor with temperature detection", when a high-power inductor is working, the heat generated by the inductor coil and the internal magnetic core will cause the overall temperature of the inductor to rise. In order to accurately detect and control the working temperature of the inductor, it is necessary to install a temperature sensing device such as an NTC sensor on the surface of the inductor coil to realize temperature detection of the inductor coil.

[0062] The present solution further provides a structure for avoiding the connection between the NTC sensor and the NTC temperature signal transmission line 35 in the coil protection plate 132 and the avoiding area 1331, so as to further improve the applicability of the welding tool.

[0063] It should be noted that the installation of the NTC temperature signal transmission line 35 can be performed in step (2), i.e., the NTC temperature signal transmission line 35 is connected to the NTC sensor (not shown in the figure) of the inductor 3, and then the coil protection plate 132 is covered on the surface of the coil 31.

[0064] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, elements, components, and / or groups thereof, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof.

[0065] The relative arrangement of parts and steps, numerical expressions, and numerical values set forth in the examples are not intended to limit the scope of the present application, unless otherwise specifically stated. At the same time, it should be understood that the sizes of the various parts shown in the drawings are not drawn in accordance with the actual proportional relationship. The technology, methods and devices known to those skilled in the related art can not be discussed in detail, but under appropriate circumstances, the technology, methods and devices should be considered as part of the authorized description. In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary, and not as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0066] In the description of the present application, it should be understood that the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and in the absence of contrary statements, these orientation words do not indicate and imply that the indicated device or element must have a particular orientation or be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the scope of protection of the present application; the orientation words "inner, outer" refer to the inner and outer of the contour of each component itself.

[0067] For purposes of the description hereinafter, the terms "upper", "lower", "right", "left", "rear", "front", "vertical", "horizontal", and derivatives thereof (e.g., "vertical ly", "horizontal ly", etc.) can refer to the relative positions of an apparatus or feature as shown in the drawings, and shall not be construed as limiting the present application to any particular spatial orientation. Furthermore, the terms "first", "second", third", etc. can be used herein to describe various components, but such components should not be limited by these terms. Such terms can be used interchangeably with appropriate spatial terms and / or other descriptive terms to describe the same components.

[0068] In addition, it should be pointed out that the use of the words "first", "second" and the like to describe various components is merely intended to distinguish similar components from each other, and such words do not have special meanings unless otherwise stated, and therefore cannot be understood as limiting the protection scope of the present application.

[0069] It should be pointed out that the terms "first", "second" and the like in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0070] The technical principles of the present application are described above in combination with specific embodiments. These descriptions are only to explain the principles of the present application, and cannot be interpreted in any way as limiting the protection scope of the present application. Based on the explanation herein, those skilled in the art can conceive other specific embodiments of the present application without creative labor, and these embodiments will fall within the protection scope of the present application.

Claims

1. A soldering fixture for an inductor, characterized by: The welding tool includes a welding base, a coil protection plate and a cover plate; the welding base is used for supporting an inductor to be welded; one end of the cover plate is hinged to one end of the welding base, and the cover plate is used for opening and covering the welding base; The coil protection plate is used for covering the surface of the coil of the inductor, and the edge of the coil protection plate is inwardly recessed to form an avoiding gap for avoiding the connection between the coil and the bus bar; The cover plate is used for pressing the coil protection plate against the surface of the coil, and the surface of the cover plate is provided with an avoiding area for avoiding the connection between the coil and the bus bar.

2. A soldering fixture for inductors as defined in claim 1, wherein: The welding base includes a mounting platform, support blocks and support columns; the support blocks are protrusively mounted on both sides of the middle part of the mounting platform, and are used for abutting against the magnetic core of the inductor; the support columns are provided in two, and are protrusively mounted on the mounting platform; the top ends of the two support columns are used for abutting against the cylinder of the inductor.

3. A soldering fixture for inductors as defined in claim 2, wherein: The welding base further includes a hinge seat and a locking seat, which are protrusively mounted on both sides of the mounting platform; One end of the cover plate is hinged to the top end of the hinge seat; The other end of the cover plate is provided with a locking position, and the locking seat locks and unlocks the cover plate through the locking position.

4. A soldering fixture for inductors as defined in claim 3, wherein: The locking seat includes a locking base, an elastic member, a clamping block and a support beam; The locking base is protrusively mounted on one side of the mounting platform; the clamping block is telescopically mounted on the upper part of the inner wall of the locking base through the elastic member; the support beam is protrusively and horizontally extendedly mounted on the upper part of the inner wall of the locking base, and the upper surface of the support beam is used for abutting against the bottom surface of the cover plate; When the cover plate is in the locked state, the clamping block passes through the locking position and clamps the edge of the locking position, and the bottom surface of the cover plate abuts against the upper surface of the support beam.

5. The inductor welding fixture of claim 1, wherein: The welding tool further includes a pressing piece, which is mounted on the cover plate and is arranged close to the avoiding area; the pressing piece is used for pressing the bus bar against the surface of the coil.

6. A soldering fixture for inductors as defined in claim 5, wherein: The welding tool further includes a pressing adhesive, which is protrusively mounted on the bottom surface of the pressing piece and is used for abutting against the bus bar.

7. The inductor welding fixture of claim 1, wherein: The surface of the coil protection plate is provided with an avoiding position for avoiding the connection between the NTC sensor and the NTC temperature signal transmission line of the inductor; The avoiding area is also used for avoiding the connection between the NTC sensor and the NTC temperature signal transmission line.

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