Inductor

Abstract

The utility model relates to the technical field of inductors, in particular to an inductor. The inductor comprises a coil, a support and a diversion bar, wherein the coil is provided with a leading-out end; the support is provided with a first end and a second end which are oppositely arranged in the axial direction of the coil. The diversion bar is provided with a first fixed end fixedly connected with the first end of the support and a second fixed end fixedly connected with the second end of the support, the second fixed end is provided with a conductive connecting part and a fixed part, the conductive connecting part is welded with the leading-out end located at the second end and forms conductive connection with the leading-out end, and the fixed part is used for being connected with the second end of the support; and the relative positions of the conductive connecting part and the leading-out end are fixed. The conductive connecting part can be fixedly connected with the leading-out end of the coil so as to lead in or lead out current; the fixing part can be fixedly connected with the support, so that the relative position of the conductive connecting part and the leading-out end is fixed, the conductive connecting part of the current guide bar and the leading-out end of the coil are connected more stably, and the situation of welding failure is not prone to occurring.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of inductor, specifically relates to an inductor. BACKGROUND

[0002] At present, the flow guide bar and the coil of the high-power inductor for automobile are usually fixed by welding. However, due to the uneven road surface during the driving of the vehicle, the inductor is subjected to large vibration, the relative movement between the flow guide bar and the coil is prone to occur, which leads to the welding failure of the flow guide bar and the coil of the inductor, and the separation problem of the flow guide bar and the coil. SUMMARY

[0003] The utility model mainly solves the problem that the flow guide bar and the coil of the inductor are prone to welding failure.

[0004] In a first aspect, an inductor is provided in an embodiment, comprising: a coil, a bracket and a flow guide bar, the coil is provided with lead-out ends at both axial ends; the coil is arranged on the bracket, the bracket has a first end and a second end arranged oppositely along the axial direction of the coil; the flow guide bar has a first fixed end fixedly connected with the first end of the bracket and a second fixed end fixedly connected with the second end of the bracket, the second fixed end has a conductive connection part and a fixed part, the conductive connection part is welded with the lead-out end located at the second end and forms a conductive connection, and the fixed part is used for fixedly connecting with the second end of the bracket to fix the relative position of the conductive connection part and the lead-out end.

[0005] Further, the inductor comprises a fastener, a fixing hole is arranged on the fixed part, the rod body of the fastener passes through the fixing hole and is connected with the second end of the bracket, so as to fix the flow guide bar to the second end.

[0006] Further, the hole opening of the fixing hole is provided with a chamfer, the head of the fastener is provided with a taper surface, and the taper surface of the fastener is matched with the chamfer of the fixing hole.

[0007] Further, the fastener is a self-tapping screw.

[0008] Further, the bracket is provided with an embedded block, the embedded block is fixedly connected with the bracket, and the fastener is fixedly connected with the embedded block.

[0009] Further, the flow guide bar comprises a bending section, the fixed part is located in the bending section, the first end on the bracket is provided with a positioning groove, the fixed part is embedded in the positioning groove, and the positioning groove is used for positioning the fixed part in the direction perpendicular to the groove depth of the positioning groove.

[0010] Further, the conductive connecting part and the leading end are arranged along the depth direction of the slot, and the conductive connecting part abuts against the leading end.

[0011] Further, the fixing part is provided with a local protrusion, the local protrusion makes the width of the corresponding part of the fixing part greater than the adjacent part, and the fixing hole is arranged at the position corresponding to the local protrusion on the fixing part.

[0012] Further, the second end of the bracket is provided with a limiting structure, and the limiting structure is used for limiting the flow guide row along the width direction of the flow guide row.

[0013] Further, the limiting structure comprises a first limiting block and a second limiting block, and the first limiting block and the second limiting block are fixedly connected with the bracket, and the flow guide row is arranged between the first limiting block and the second limiting block.

[0014] According to the inductor of the above-mentioned embodiment, the flow guide row has a conductive connecting part, the conductive connecting part can be fixedly connected with the leading end of the coil to guide in or out the current; the flow guide row is further provided with a fixing part, the fixing part can be fixedly connected with the bracket, and the relative position of the conductive connecting part and the leading end is further fixed, the connection between the conductive connecting part of the flow guide row and the leading end of the coil is more stable, and the welding failure is not easy to occur. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic view of an embodiment of the inductor of the utility model;

[0016] Figure 2 It is Figure 1 It is an exploded view of the inductor;

[0017] Figure 3 It is Figure 1 It is a partial enlarged schematic view of the inductor.

[0018] REFERENCE SIGNS:

[0019] 1, coil; 11, leading end; 2, bracket; 21, first end; 22, second end; 221, positioning slot; 222, first limiting block; 223, second limiting block; 3, flow guide row; 31, first fixed end; 32, second fixed end; 321, conductive connecting part; 322, fixing part; 3221, fixing hole; 3222, local protrusion; 4, fastener; 41, taper surface. DETAILED DESCRIPTION

[0020] The utility model will be further described in detail below through specific implementation and in connection with drawings. Similar elements in different embodiments adopt relevant similar element signs. In the following embodiments, many details are described in order to make the present application be better understood. However, the person skilled in the art can easily realize that part of the features can be omitted in different cases, or can be replaced by other elements, materials, methods. In some cases, some operations related to the present application are not shown or described in the specification in order to avoid the core part of the present application being overwhelmed by too much description, and for the person skilled in the art, it is not necessary to describe these related operations in detail according to the description in the specification and the general technical knowledge in the art.

[0021] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various embodiments. Meanwhile, the steps or actions in the method description can also be sequentially replaced or adjusted in a manner that is obvious to the person skilled in the art. Therefore, the various sequences in the specification and drawings are only for the purpose of clearly describing a certain embodiment, and do not mean that the sequence is necessary, unless otherwise stated that a certain sequence must be followed.

[0022] The serial numbers of components in this paper, such as "first", "second", etc., are only used to distinguish the described objects, and do not have any sequence or technical meaning. Unless otherwise specified, the "connection" and "coupling" in this application include direct and indirect connection (coupling).

[0023] In one embodiment, referring to Figures 1-3 The inductor includes a coil 1, a bracket 2 and a flow guide bar 3. The coil 1 is provided with lead-out ends 11 at both axial ends, specifically, two lead-out ends 11 are arranged at both ends of the coil 1. The lead-out ends 11 are electrically connected with the winding part of the coil 1, and the lead-out ends are arranged to facilitate the electrical connection between the flow guide bar 3 and the coil 1. The coil 1 is sleeved on the bracket 2, and the bracket 2 has a first end 21 and a second end 22 arranged opposite to each other along the axis of the coil 1.

[0024] The flow guide bar 3 can be long strip-shaped and has a first fixed end 31 fixedly connected with the first end 21 of the bracket 2 and a second fixed end 32 fixedly connected with the second end 22 of the bracket 2. The second fixed end 32 has an electrically conductive connecting part 321 and a fixed part 322. The electrically conductive connecting part 321 is welded with the lead-out end 11 at the second end 22 to form an electrically conductive connection, and the flow guide bar 3 is used to guide the current into or out of the coil 1. For example, the flow guide bar 3 can guide the lead-out end 11 at the second end 22 to the electrically conductive part arranged at the first end 21.

[0025] The fixing portion 322 is used to be fixedly connected with the second end 22 of the bracket 2, so that the relative position of the conductive connecting portion 321 and the lead-out end 11 is fixed. For example, the fixing portion 322 and the second end 22 can be fixedly connected through snap connection or through the fastener 4. After the fixing portion 322 fixes the relative position of the conductive connecting portion 321 and the lead-out end 11, the connection between the conductive connecting portion 321 of the flow guide 3 and the lead-out end 11 of the coil 1 is more stable, and the welding failure is less likely to occur.

[0026] In an embodiment, as shown in Figures 1-3 , the inductor includes the fastener 4, and the fixing portion 322 is provided with a fixing hole 3221, and the rod body of the fastener 4 passes through the fixing hole 3221 and is connected with the second end 22 of the bracket 2, so as to fix the flow guide 3 to the second end 22. The fixing hole 3221 and the fastener 4 are arranged to facilitate the fixing of the flow guide 3 to the second end 22 of the bracket 2, and also facilitate the disassembly and maintenance of the flow guide 3. Specifically, the fastener 4 can be a screw, a bolt or the like.

[0027] In an embodiment, as shown in Figure 3 , the fixing hole 3221 is provided with a chamfer, and the head of the fastener 4 is provided with a tapered surface 41, and the tapered surface 41 of the fastener 4 is matched with the chamfer of the fixing hole 3221. The arrangement of the tapered surface 41 and the chamfer increases the contact area between the fastener 4 and the fixing portion 322, so that the fastener 4 and the fixing portion 322 are more fully contacted, the flow guide 3 is less likely to shake, and the connection between the conductive connecting portion 321 and the lead-out end 11 is more stable.

[0028] In some other embodiments, a gasket can be further arranged between the fastener 4 and the fixing hole 3221, and the gasket can increase the contact area between the fastener 4 and the fixing portion 322, so that the fastener 4 and the fixing portion 322 are more fully contacted, and the connection between the fixing portion 322 and the second end 22 is more stable.

[0029] In an embodiment, as shown in Figure 2 , the fastener 4 is a self-tapping screw. The material of the bracket 2 can be plastic, and the self-tapping screw has a sharp tail capable of drilling into the bracket 2, so as to facilitate the fixing of the flow guide 3 to the bracket 2.

[0030] In some other embodiments, the fastener 4 can also be a bolt, and the bracket 2 is correspondingly provided with a threaded hole matched with the bolt. The tail of the bolt is matched in the threaded hole, so as to press the fixing portion 322 against the second end 22 of the bracket 2.

[0031] In an embodiment, the inner part of the bracket 2 is provided with an embedded block, the embedded block is fixedly connected with the bracket 2, and the fastener 4 is fixedly connected with the embedded block. For example, the embedded block is arranged at the second end 22 of the bracket 2, and the embedded block can be fixedly arranged in the inner part of the bracket 2 by means of injection molding. Alternatively, a groove is formed on the bracket 2, and the embedded block is fixedly arranged in the groove by means of adhesion or interference fit. The fastener 4 can be a bolt, and the embedded block can also be a nut matched with the bolt. Alternatively, the fastener 4 is a self-tapping screw, and the embedded block can be made of a soft material to facilitate the drilling of the self-tapping screw.

[0032] In an embodiment, please refer to Figures 1-3 , the flow guide row 3 includes a bent section, the fixed part 322 is located at the bent section, the first end 21 of the bracket 2 is provided with a positioning groove 221, and the fixed part 322 is embedded in the positioning groove 221. The positioning groove 221 is used for positioning the fixed part 322 in the direction perpendicular to the depth of the positioning groove 221. Specifically, the shape of the positioning groove 221 can be matched with the shape of the fixed part 322, and the second fixed end 32 of the flow guide row 3 can be bent towards the coil 1 so that the fixed part 322 is embedded in the positioning groove 221.

[0033] After the fixed part 322 is embedded in the positioning groove 221, the fixed part 322 cannot move in the direction perpendicular to the depth of the groove. The arrangement of the fastener 4 makes the fixed part 322 unable to move in the direction of the depth of the groove. The cooperation of the positioning groove 221 and the fastener 4 can sufficiently fix the second fixed end 32 of the flow guide row 3, avoiding the separation of the conductive connection part 321 and the lead-out end 11 due to the welding failure.

[0034] In an embodiment, please refer to Figures 1-3 , the conductive connection part 321 and the lead-out end 11 are arranged in the direction of the depth of the groove, and the conductive connection part 321 abuts against the lead-out end 11. In the above arrangement, after the fixed part 322 of the flow guide row 3 is embedded in the positioning groove 221, the conductive connection part 321 can abut against the lead-out end 11, which is convenient for welding and fixing.

[0035] In an embodiment, please refer to Figures 1-3 , the fixed part 322 is provided with a local protrusion 3222, the local protrusion 3222 makes the width of the corresponding part of the fixed part 322 greater than that of the adjacent part, and the fixing hole 3221 is arranged at the position of the fixed part 322 corresponding to the local protrusion 3222. Specifically, the local protrusion 3222 can be an arc-shaped protrusion. The arrangement of the local protrusion 3222 increases the area of the fixed part 322, which is convenient for forming the fixing hole 3221 on the fixed part 322 and fixing the flow guide row 3 by means of the fastener 4.

[0036] In some other embodiments, the shape of the local protrusion 3222 can also be rectangular or other shapes, as long as the fixing hole can be arranged.

[0037] In one embodiment, please refer to Figure 1 And Figure 2 The second end 22 of the bracket 2 is provided with a limiting structure, specifically, the limiting structure can be provided on the first end 21 of the bracket 2, and the limiting structure is used for limiting the width direction of the flow guide row 3. The limiting structure provided on the bracket 2 can avoid the flow guide row 3 moving in the width direction, and the connection between the conductive connecting part 321 and the lead-out end 11 is more stable.

[0038] In one embodiment, please refer to Figure 1 And Figure 2 The limiting structure includes a first limiting block 222 and a second limiting block 223, both of which are fixedly connected with the bracket 2, and the flow guide row 3 is arranged between the first limiting block 222 and the second limiting block 223. The first limiting block 222 and the second limiting block 223 can be arranged in the width direction of the flow guide row 3 and limit the two sides of the flow guide row 3 respectively, so as to avoid the flow guide row 3 moving in the width direction, and the connection between the conductive connecting part 321 and the lead-out end 11 is more stable.

[0039] In some other embodiments, the limiting structure can also be a limiting groove provided on the first end 21 of the bracket 2, and the limiting groove is arranged in the width direction of the flow guide row 3.

[0040] The assembly process of the flow guide row of the inductor is described below.

[0041] During assembly, the first fixed end 31 of the flow guide row 3 is connected with the first end 21 of the bracket 2 through the fastener 4, then the conductive connecting part 321 of the second fixed end 32 of the flow guide row 3 is welded and fixed with the lead-out end 11 of the coil 1, and finally the fixed part 322 is fixedly connected with the second end 22 of the bracket 2 through the fastener 4. The fixed part 322 can fix the relative position between the conductive connecting part 321 and the lead-out end 11, and the conductive connecting part 321 and the lead-out end 11 are not prone to welding failure.

[0042] The above application of specific examples to the utility model is described, which is only used to help understand the utility model, and does not limit the utility model. For those skilled in the art to which the utility model belongs, according to the idea of the utility model, a number of simple deductions, deformations or substitutions can be made.

Claims

1. An inductor, characterized in that: include: A coil, wherein lead ends are provided at both axial ends of the coil; a bracket, the coil is arranged on the bracket, the bracket having a first end and a second end arranged opposite to each other along the axial direction of the coil; A guide bar, the guide bar having a first fixed end fixedly connected to the first end of the bracket, and a second fixed end fixedly connected to the second end of the bracket, the second fixed end having a conductive connecting portion and a fixing portion, the conductive connecting portion being welded to the lead-out end located at the second end to form a conductive connection, and the fixing portion being used to be fixedly connected to the second end of the bracket so that the relative position of the conductive connecting portion and the lead-out end is fixed.

2. The inductor according to claim 1, wherein A fastener is included, a fixing hole is provided on the fixing portion, a rod of the fastener passes through the fixing hole and is connected to the second end of the bracket to fix the guide bar to the second end.

3. The inductor according to claim 2, wherein: The opening of the fixing hole is provided with a chamfer, and the head of the fastener is provided with a conical surface, and the conical surface of the fastener is matched with the chamfer of the fixing hole.

4. The inductor according to claim 2, wherein: The fastener is a self-tapping screw.

5. The inductor according to claim 2, wherein: The bracket is provided with an insert, the insert is fixedly connected to the bracket, and the fastener is fixedly connected to the insert.

6. The inductor according to any one of claims 2 to 5, wherein: The guide bar includes a bending section, the fixing part is located in the bending section, the second end of the bracket is provided with a positioning groove, the fixing part is embedded in the positioning groove, and the positioning groove is used to position the fixing part in a groove depth direction perpendicular to the positioning groove.

7. The inductor according to claim 6, wherein: The conductive connection portion and the lead-out end are both arranged along the groove depth direction, and the conductive connection portion is in contact with the lead-out end.

8. The inductor according to claim 6, wherein: The fixing portion is provided with a local protrusion, which makes the width of a corresponding portion of the fixing portion larger than an adjacent portion, and the fixing hole is provided at a position on the fixing portion corresponding to the local protrusion.

9. The inductor according to claim 6, wherein: A limiting structure is provided at the first end of the bracket, and the limiting structure is used to limit the guide bar along the width direction of the guide bar.

10. The inductor according to claim 9, wherein: The limiting structure includes a first limiting block and a second limiting block, the first limiting block and the second limiting block are both fixedly connected to the bracket, and the guide bar is arranged between the first limiting block and the second limiting block.

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