CN218603720U - Electronic component structure convenient for automatic installation and LED lighting lamp - Google Patents

Abstract

The utility model provides an electronic component structure and a LED lighting lamp convenient for automatic installation, wherein the electronic component structure is used for passing through a through hole of a circuit board and is welded on the circuit board and comprises an electronic component and a clamping part; one end of the clamping portion is welded at one end of the electronic component, and the other end of the clamping portion is used for being clamped in the through hole of the circuit board; the maximum distance between any two points on the cross section of the clamping part is larger than the aperture of the through hole, and the clamping part is conductive. The clamping portion can be in interference clamping in the through hole of the circuit board through automation equipment, so that the electronic component is fixed on the circuit board, and further the electronic component with the end metal wire diameter smaller than the through hole of the circuit board can be also inserted into an industrial machine, and the production efficiency is improved.

Description

Electronic component structure convenient for automatic installation and LED lighting lamp

Technical Field

The utility model relates to the field of lighting, in particular to electronic components structure and LED illumination lamps and lanterns convenient to automatic installation.

Background

In LED light fixtures, there are often two designs of driver boards used, one is an FR4 double-sided board, and the other is an FR1 single-sided board. In the drive adopting the FR4 double-panel design, in order to save the manufacturing cost, a manufacturer adopts automatic equipment to realize automatic plug-in of an input power line, thereby saving the labor. However, because the diameter of the metal wire core of the input power line is only about 0.4mm, the corresponding aperture of the circuit board is often set to about 0.45mm in order to facilitate the insertion of the automatic machine, and then the metal wire core is flattened by the equipment (the longest linear distance between any two points at the flattened position is greater than the aperture of the circuit board), and then the flattened part is automatically inserted into the aperture of the circuit board. Although this method can realize automatic insertion of the input power line, there are many disadvantages, such as the mechanical performance and reliability of the flattened metal wire core are reduced. In the production process, the flattened part is easy to break; for another example, the existing flattening process can only realize the protrusion in two directions on the same horizontal line, which means that in the through hole of the circuit board, only two flattened protruding parts of the metal wire core are in interference fit with the inner wall of the hole of the circuit board, and the interference fit is very unstable, so that the problem of part falling caused by looseness is particularly easy to occur in the production process before wave soldering. In the driving of the FR1 single-panel design, the aperture of the FR1 single-panel is 0.7mm at the minimum due to the limitation of the processing technology. Therefore, to insert the 0.4mm metal wire core into the 0.7mm circuit board hole in an interference manner, the longest linear distance between any two points at the flattened position is required to be greater than 0.7mm. Compared with the machine insertion design scheme of the FR4 double-sided board, the machine insertion design scheme of the FR1 single-sided board has greater fracture risk and more serious reliability problem, and meanwhile, the problem of falling of the parts due to looseness is easier to occur.

In addition, in both of the FR4 double panel design and the FR1 single panel design, a 1/2W miniaturized design is often adopted as a fuse resistor of the other input line due to space limitation, and the lead diameter is also about 0.4 mm. Therefore, the same problems and disadvantages as those of the conventional plug-in implementation of the input power line are inevitably caused when the fuse resistor is implemented.

In addition, for electronic components such as fuse resistors and metal wire cores, which are made of soft (easy to bend), the pins are easy to bend during the insertion process, which affects the insertion yield and efficiency.

In view of this, how to make electronic components more convenient for machine plugging is a technical problem to be solved in the field.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an electronic components structure convenient to automatic installation.

The utility model aims to solve the problem that the automatic installation of current part components and parts is not convenient for.

In order to solve the problem, the utility model discloses a following technical scheme realizes:

an electronic component structure for passing through a through hole of a circuit board and soldering on the circuit board, which facilitates automated mounting, comprising:

an electronic component;

one end of the clamping part is welded at one end of the electronic component, and the other end of the clamping part is used for being clamped in the through hole of the circuit board;

the maximum distance between any two points on the cross section of the clamping part is larger than the aperture of the through hole, and the clamping part is conductive.

Further, the cross section of the clamping part is circular, oval, regular polygon or diamond.

Furthermore, a guide part is arranged at one end of the clamping part far away from the electronic component, the maximum distance between two points on the cross section of the guide part gradually increases from the end part towards the direction of the electronic component, and the maximum distance between two points on the cross section of the end part of the guide part far away from the clamping part is smaller than the aperture of the through hole.

Furthermore, the electronic component comprises an electronic wire, a metal wire or a safety resistor.

Further, the welding includes electric welding, fusion welding or soldering.

Furthermore, a groove is formed in one end, close to the electronic component, of the clamping portion.

Further, the diameter of the groove is larger than the diameter of the end of the electronic component.

The utility model provides a LED lighting lamp, includes the circuit board, still includes foretell electronic components structure convenient to automatic installation, electronic components structure is fixed in on the circuit board.

Compared with the prior art, the utility model discloses technical scheme and beneficial effect as follows:

(1) The utility model discloses a distance of joint portion cross section two points far away is greater than the circuit board aperture, just can realize with through-hole interference fit, realizes that the industrialization machine inserts, need not to flatten the processing to the metal wire to avoided current design to flatten the problem that the fracture risk and the reliability brought after the metal wire reduced.

(2) The utility model discloses a joint portion adopts regular polygon structure, and regular polygon's a plurality of arris all carry out interference fit with the through-hole to improved the stability after the product machine is inserted, simultaneously when with through-hole interference joint, be difficult for causing the broken hole of through-hole.

(3) The utility model discloses a joint portion is provided with the recess towards electronic components's one end, and the recess is greater than electronic components's tip diameter to make the recess not only the holding soldering tin still enlarged the welding area of electronic components and joint portion, improved the reliability of electronic components structure.

(4) The utility model discloses an electronic components structure for electronic components's pin diameter can be as little as possible, thereby makes the gap that the pin that has this electronic components produced when contacting with the lamp holder littleer, and then has improved the security and the outward appearance integrality of lamp holder assembly.

Drawings

Fig. 1 is a structural diagram of an electronic component structure convenient for automatic installation according to a first embodiment of the present invention;

fig. 2 is a diagram illustrating an assembly process of an electronic component structure and a circuit board, which is convenient for automatic installation according to an embodiment of the present invention;

FIG. 3 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 1;

fig. 4 is a structural diagram of an electronic component structure convenient for automatic installation according to a first embodiment of the present invention, where the electronic component is a metal wire;

fig. 5 is a structural diagram of an electronic component structure convenient for automatic installation according to a first embodiment of the present invention, where the electronic component is a safety resistor;

fig. 6 is a further structural diagram of an electronic component structure convenient for automatic installation according to a first embodiment of the present invention;

fig. 7 is a structural diagram of an electronic component structure convenient for automatic installation according to a second embodiment of the present invention;

FIG. 8 is a sectional view taken along line B-B of FIG. 7;

fig. 9 is a top view of an electronic component structure and a circuit board assembly, which is provided by the second embodiment of the present invention and facilitates automatic installation;

fig. 10 is a structural diagram of an electronic component structure convenient for automatic installation according to a third embodiment of the present invention;

FIG. 11 is a cross-sectional view taken in the direction of C-C in FIG. 9;

fig. 12 is a structural diagram of an electronic component structure convenient for automatic installation according to a fourth embodiment of the present invention;

FIG. 13 is a cross-sectional view taken along line D-D of FIG. 11;

fig. 14 is a cross-sectional view of an electronic component structure convenient for automatic installation according to a fifth embodiment of the present invention;

fig. 15 is a schematic structural view of a part of a lamp provided in the tenth embodiment of the present invention;

FIG. 16 is an enlarged view of a portion of the structure of FIG. 15;

FIG. 17 is a schematic view of the structure of FIG. 16 after encapsulating the lamp cap;

fig. 18 is a schematic view of a part of a lamp according to a tenth embodiment of the present invention;

fig. 19 is a schematic structural view of the structure shown in fig. 18 after the lamp cap is packaged.

Detailed Description

To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are part of the embodiments of the present invention, rather than all embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Example one

Referring to fig. 1, an electronic component structure convenient for automatic installation includes an electronic component 10 and a clamping portion 20, one end of the electronic component 10 is welded at one end of the clamping portion 20, one end of the clamping portion 20 close to the electronic component 10 is a first end 21, and one end of the clamping portion 20 far away from the electronic component 10 is a second end 22. It is understood that the electronic component 10 mentioned in the present embodiment has only one pin at one end. The welding of the one end of the electronic component 10 and the one end of the clamping portion 20 may be fusion welding, soldering or electric welding.

Referring to fig. 2, in the present embodiment, the clamping portion 20 is used to pass through the through hole 31 of the circuit board 30 and is welded on the circuit board 30. The maximum distance between two points on the cross section of the catching portion 20 is larger than the hole diameter of the through hole 31 as shown in fig. 2-1. The second end 22 of the clip portion 20 passes through the through hole 31 of the circuit board, such that the two ends of the clip portion 20 are respectively exposed out of the through hole 22, as shown in fig. 2-2. The maximum distance between any two points on the cross section of the clamping portion 20 is greater than the aperture of the through hole 31, that is, the clamping portion 20 and the through hole 31 are in interference fit, so that when the mechanical hand is inserted, the mechanical hand grips the position near the first end 21 of the clamping portion 20, the second end 22 is aligned to the through hole 31 and forcibly penetrates through the through hole 31, and as the clamping portion 20 and the through hole 31 are in interference fit, the clamping portion 20 and the through hole form stable clamping, and the subsequent part of the clamping portion, which is close to the second end and exposed out of the through hole, can be soldered with the circuit board.

Referring to fig. 3, in the present embodiment, the cross section of the fastening portion 20 is circular, and the diameter of the fastening portion 20 is larger than the diameter of the through hole 31. The circuit board is a single-sided board, the aperture of the through hole is about 0.7mm, and the diameter of the clamping part 20 can be 0.8mm; the circuit board is a double-sided board, the aperture of the through hole is about 0.4mm, and the diameter of the clamping portion 20 can be 0.5mm. When carrying out the joint with the circuit board, snatch joint portion 20 through the manipulator and pass through-hole 31 by force and realize that the joint is fixed, and set up joint portion 20 into the cylinder, this kind of structure workable is favorable to the industrial use of the electronic components structure of this embodiment.

The electronic component 10 of the present embodiment includes an electronic wire, a metal wire, or a fuse resistor. As shown in fig. 4, the electronic component 10 is a metal wire, the connection between the clip portion 20 and the electronic component 10 is conductive, and the clip portion 20 may be a metal wire core made of the same material as the electronic component 10, or may be made of other conductive materials. As shown in fig. 5, the electronic component 10 may also be a safety resistor. The electronic component 10 may also be an electronic wire (a metal wire core wrapped with an insulating sheath).

Referring to fig. 6, a guide portion 40 is disposed at an end of the clamping portion 20 away from the electronic component 10, a maximum distance between two points on a cross section of an end portion of the guide portion 40 away from the clamping portion 20 is smaller than a hole diameter of the through hole, a maximum distance between two points on a cross section of the guide portion 40 gradually increases from the end portion toward the electronic component, and a maximum distance between two points on a cross section of an end portion of the guide portion 40 away from the clamping portion is smaller than the hole diameter of the through hole, so that the clamping portion 20 is easier to align with the through hole 31 when being installed.

Example two

The embodiment of the utility model provides another kind of electronic components structure convenient to automatic installation, the difference with embodiment one lies in the design difference of joint portion, please combine to refer to fig. 7, including electronic components 10 and joint portion 50, electronic components 10 one end welds in the one end of joint portion 50, and joint portion 50 is close to the one end of electronic components 10 and is first end 51, and the one end that electronic components 10 was kept away from to joint portion 50 is second end 52. It can be understood that the end of the clamping portion 50 of the present embodiment is also provided with a guiding portion, so as to more conveniently represent the difference between the present embodiment and the first embodiment, a structure with the same function is omitted, and the specific shape of the guiding portion is adapted to different designs of the clamping portion, and the basic function is the same.

Fig. 8 is a cross-sectional view of the electronic component structure shown in fig. 7 taken along the direction C-C. Fig. 8 shows that the cross section of the clamping portion 50 is an ellipse, the major axis of the ellipse is larger than the aperture of the through hole, and the minor axis of the ellipse and the aperture of the through hole are not specifically limited, so that the minor axis of the cross section of the clamping portion 50 in this embodiment is at least slightly larger than the diameter of the end of the electronic component 10 in order to facilitate the welding of the clamping portion 50 and the electronic component 10 and the firmness after the welding. The minor axis of the cross section of the snap-in portion 50 in this embodiment is smaller than the aperture of the through hole.

Referring to fig. 9, the positions of the electronic components such as the power line or the safety resistor on the driving board of the LED lamp are generally at the edge of the board, that is, the position of the through hole is close to the edge, therefore, when the clamping portion extrudes the through hole to deform, the area close to the edge of the circuit board is relatively weak, as shown in a, there is a risk of breaking the hole due to cracking.

The clamping portion 50 is in interference fit with the through hole 31, the clamping portion 50 extrudes the through hole 31, namely, the oval long axis extrudes the through hole 31, and the extrusion force on the through hole 31 is along the long axis direction, in other words, the oval long axis avoids the area a. Only need in automatic plug-in components, notice the relative position of joint portion and through-hole and can avoid appearing broken hole phenomenon, and the counterpoint of joint portion and through-hole is the commonly used means in the automation field, also does not belong to the utility model discloses an inventive point, no longer gives unnecessary details here.

EXAMPLE III

The embodiment of the utility model provides another kind of electronic components structure convenient to automatic installation, the difference lies in the design of joint portion different with embodiment one or embodiment two, please combine reference figure 10, including electronic components 10 and joint portion 60, electronic components 10 one end welds in the one end of joint portion 60, and joint portion 60 is close to the one end of electronic components 10 and is first end 61, and the one end that joint portion 60 kept away from electronic components 10 is second end 62, and in the same way, the tip of joint portion 60 also is provided with the guide part.

Fig. 11 is a cross-sectional view of the electronic component structure shown in fig. 10, taken along the direction C-C. Fig. 10 shows that the cross section of the clamping portion 60 is rectangular, and the diagonal line of the rectangle is larger than the aperture of the through hole. In order to facilitate the welding of the clamping portion 60 and the electronic component 10, when the circuit board is a single-sided board, the aperture of the through hole is about 0.7mm, the diagonal line of the cross section of the clamping portion may be 0.8mm, and when the cross section is square, the side length of the cross section of the clamping portion is at least slightly larger than the diameter (0.4-0.5 mm) of the end portion of the electronic component 10. In a similar way, the side edges of the square clamping part are avoided from the area, close to the edge of the circuit board, of the through hole, so that the through hole can be prevented from being broken.

Example four

The embodiment of the utility model provides another kind of electronic components structure convenient to automatic installation, with embodiment one, embodiment two and embodiment three the difference lie in the design of joint portion different, please combine reference figure 12, including electronic components 10 and joint portion 70, electronic components 10 one end welds in the one end of joint portion 70, and joint portion 70 is close to the one end of electronic components 10 and is first end 71, and the one end of keeping away from electronic components 10 of joint portion 70 is second end 72, and the same reason, the tip of joint portion 70 also is provided with the guide part.

Fig. 13 is a cross-sectional view of the electronic component structure shown in fig. 12, taken along the direction D-D. Fig. 13 shows that the cross section of the clamping portion 70 is a regular hexagon, and the diagonal of the regular hexagon is larger than the aperture of the through hole, so that the clamping portion 70 can be well clamped with the through hole.

It can be appreciated that the joint portion 70 can be other shapes, and it is not exhaustive here, and after the reasonable consideration according to industrial production, cost and joint effect, the utility model discloses a joint portion is square or cylinder.

EXAMPLE five

In this embodiment, a further improvement is made on the basis of any one of the first embodiment to the fourth embodiment, referring to fig. 14, in this embodiment, a groove 201 is disposed at an end of the clamping portion 20 facing the electronic component 10, and the groove is used for accommodating at least a portion of solder when the electronic component 10 is soldered with the clamping portion 20, so that the appearance of the electronic component structure is more concise. More preferably, the diameter of the groove 201 is greater than the diameter of the end of the electronic component 10, so that the end of the electronic component 10 can be completely placed in the groove 201, the groove accommodates soldering tin, the welding area between the electronic component 10 and the clamping portion 20 is enlarged, and the reliability of the structure of the electronic component is improved.

EXAMPLE six

Referring to fig. 15 to 17, the present embodiment further provides a lamp. The lamp provided by the embodiment can be a bulb-type lamp, and particularly can be an LED bulb lamp. As shown in fig. 15, the lamp includes a heat sink 110 and an input power line (metal line) 10, the metal line is one of the electronic components 10, and in this embodiment, the input power line is also marked with 10.

Referring to fig. 16, the lamp further includes a circuit board 30 (the circuit board is also shown in phantom in fig. 16 and only partially cut away from the driver board since the circuit board is located inside the heat sink). In this embodiment, the circuit board 30 may be a single-sided board or a double-sided board, where the circuit board 30 includes the electronic component structure convenient for automatic installation as described in any one of the first to fifth embodiments, and the input power line 10 is on the circuit board 30.

The lamp further comprises a base 130, as shown in fig. 17, where the head of the heat sink 110 and the circuit board 30 inside the heat sink are both enclosed by the base 130. When the base 130 and the heat sink 110 are assembled and fixed together, the end 10b of the input power line 10 far away from the circuit board 30 is in direct contact with the conductive sidewall of the base 130 for electrical connection.

Referring to fig. 18 and 19, the lamp includes a heat sink 110 and a safety resistor 10, and the lamp further includes a circuit board 30 (since the circuit board is located inside the heat sink, the circuit board is also shown in fig. 18 by dotted lines, and only a part of the size of the driving board is cut). The safety resistor 10 is on the circuit board 30. The safety resistor is one of the electronic components 10, and in the present embodiment, the safety resistor is also marked with 10.

The head of the heat sink 110 and the circuit board 30 within the heat sink are both encapsulated by the cap 130. After the base 130 and the heat sink 110 are assembled and fixed together, one end of the safety resistor 10 is fixed on the circuit board 30 by the soldered connection 20, and the other end 10b of the safety resistor 10 extends to the base and is pressed against the rivet 120 of the base to achieve electrical connection.

Of course the lamp may also be of another type, for example an all glass type lamp, in particular an LED filament lamp. In this lamp type, the end 10b of the input power line or fuse resistor remote from the circuit board 30 is also connected to the lamp cap. In consideration of appearance and safety, the smaller the gap between the lamp holder and the glass bulb is, the better the smaller the wire diameter of the connection part of the input power line 10 and the lamp holder is, the larger the welding area is, in order to improve the welding reliability of the connection wire and the circuit board 30, the larger the wire diameter of the connection part of the input power line 10 and the circuit board is, the better the requirement is met, the smaller the diameter of the input power line part is always kept, and the clamping part 20 can be clamped with the through hole 31 and the welding area is enlarged.

Because the lamp of this embodiment includes corresponding electronic components structure, therefore the lamp can have the corresponding beneficial effect of each aforementioned embodiment.

While the foregoing specification illustrates and describes the preferred embodiments of the present invention, it is to be understood that the invention is not limited to the precise forms disclosed herein and is not to be considered as exclusive of other embodiments, but rather is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, either in the above teachings or as known in the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims (8)

1. An electronic components structure convenient to automatic installation for pass the through-hole of circuit board and weld on the circuit board, its characterized in that includes:

an electronic component;

one end of the clamping part is welded at one end of the electronic component, and the other end of the clamping part is used for being clamped in the through hole of the circuit board;

the maximum distance between any two points on the cross section of the clamping portion is larger than the aperture of the through hole, and the clamping portion is conductive.

2. The electronic component structure convenient to automatic installation of claim 1, wherein the cross section of the clamping portion is circular, oval, regular polygon or diamond.

3. The electronic component structure convenient for automatic installation according to claim 1, wherein a guide portion is disposed at an end of the clamping portion away from the electronic component, the maximum distance between two points on the cross section of the guide portion gradually increases from the end portion thereof toward the electronic component, and the maximum distance between two points on the cross section of the end portion of the guide portion away from the clamping portion is smaller than the aperture of the through hole.

4. An electronic component structure facilitating automated assembly as claimed in claim 1, wherein the electronic component includes an electronic wire, a metal wire or a fuse resistor.

5. The electronic component structure facilitating automated assembly as claimed in claim 1, wherein the welding includes electric welding, fusion welding or soldering.

6. The electronic component structure convenient for automatic installation according to any one of claims 1 to 5, wherein a groove is arranged at one end of the clamping portion close to the electronic component.

7. An electronic component structure convenient for automatic installation according to claim 6, wherein the diameter of the groove is larger than the diameter of the end of the electronic component.

8. An LED lighting fixture, comprising a circuit board, characterized in that it further comprises an electronic component structure convenient for automatic installation as claimed in any one of claims 1-7, said electronic component structure being fixed on said circuit board.

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