CN208970283U - A kind of transformer avoiding transformer rosin joint and its skeleton structure - Google Patents
A kind of transformer avoiding transformer rosin joint and its skeleton structure Download PDFInfo
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- CN208970283U CN208970283U CN201821734434.4U CN201821734434U CN208970283U CN 208970283 U CN208970283 U CN 208970283U CN 201821734434 U CN201821734434 U CN 201821734434U CN 208970283 U CN208970283 U CN 208970283U
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- transformer
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- rosin joint
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- support leg
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Abstract
The utility model discloses a kind of transformer for avoiding transformer rosin joint and its skeleton structures, it is related to transformer technology field, including shell, be provided on the shell be used to support shell make between housing bottom and pcb board formed gap support leg, by the way that support leg is arranged on the shell of transformer, so that there are gaps between transformer and bottom, during Reflow Soldering, heat reflux is more uniform at the welding foot of transformer, it is uniformly heated, rosin joint is avoided, improves and is electrically connected stability between transformer and pcb board.
Description
Technical field
The utility model relates to transformer technology fields, more specifically, it relates to a kind of change for avoiding transformer rosin joint
Depressor and its skeleton structure.
Background technique
Due to the needs that electronic product pcb board is increasingly miniaturized, there is chip component, traditional welding method cannot
It meets the needs of, then, uses Reflow Soldering in hybrid circuit board assembling.Reflow Soldering is allocated in advance by refuse
Cream on to printed board pad fills solder, realize surface-assembled component welding end or pin and printed board pad room machine with
The solder of electrical connection.The effect of thermal current butt welding point is leaned in Reflow Soldering, and gelatinous solder flux carries out under certain high temperature gas flow
The welding of physical reactions, so crying " Reflow Soldering " is because gas, which generates high temperature in welding machine internal circulation flow, reaches welding purpose.
Existing transformer, is welded on pcb board using solder reflow techniques, but since transformer bottom is close to
In pcb board, so that thermal current can not lead to welding foot uneven heating uniformly by the cream dress solder fusing on pad
It is even, easily there is the case where rosin joint, cause between transformer and pcb board be electrically connected it is unstable.
Utility model content
In view of the deficienciess of the prior art, the first of the utility model is designed to provide one kind and avoids transformer rosin joint
Transformer framework structure, by the way that support leg is arranged on shell, so that there are gaps between transformer and bottom, in Reflow Soldering
During, heat reflux is more uniform at the welding foot of transformer, is uniformly heated, and avoids rosin joint, improves transformer and PCB
Electrical connection stability between plate；Also, the full Surface Mounting Technology production of deisgn product may be implemented in other patch power supply apparatus of arranging in pairs or groups,
Reflow soldering process is only crossed, saved wave-soldering process, to promote production efficiency.
To achieve the above object, the utility model provides following technical solution:
A kind of transformer framework structure avoiding transformer rosin joint, including shell are provided on the shell and are used to support
Shell makes the support leg that gap is formed between housing bottom and pcb board.
By using above-mentioned technical proposal, the setting of support leg can make to exist between the housing bottom of transformer and pcb board
Gap, during Reflow Soldering, hot gas can uniformly scatter in gap, so that heat reflux is equal at the welding foot of transformer
It is even, it can avoid rosin joint, improve and be electrically connected stability between transformer and pcb board.
Further, the support leg is set to the shell two sides.
By using above-mentioned technical proposal, support leg is arranged in shell two sides, when transformer is mounted on pcb board,
Transformer can two sides stress, keep transformer installation stability.
Further, it is provided with backflash between the support leg and shell of side at least within, the backflash is by shell
Body is connected to when being installed on pcb board with housing bottom.
By using above-mentioned technical proposal, the setting of backflash can increase the clearance space between shell and pcb board, so that
Hot gas in welding machine can be penetrated more in gap, improved uniformity of the hot gas at welding foot, can be further avoided rosin joint,
It improves and is electrically connected stability between transformer and pcb board.
Further, the support leg extends outwardly far from shell side is provided with connection sheet, opens up in the connection sheet
There is the mounting groove outside several connections, forms mounting blocks between adjacent fitting grooves.
By using above-mentioned technical proposal, the setting of mounting groove can be used to install insulated conductor, lead to what is connect with coil
Line is orderly arranged.
Further, the mounting groove can accommodate at least two insulated conductors.
Further, the mounting blocks are provided with the mounting hole for erecting and welding foot towards housing bottom side.
By using above-mentioned technical proposal, welding foot is mounted in mounting hole, and with pass through mounting groove in insulated conductor
It after electrical connection, can be fixed by insulating cement, the mounting means is simple, easy to operate.
Further, the bearing height of the support leg of two sides is identical.
By using above-mentioned technical proposal, so that transformer during installation can be relatively more steady, simultaneously as the support of two sides
Foot is contour, and heat reflux of the thermal current in the gap of shell and pcb board can be more uniform.
In view of the deficienciess of the prior art, the second of the utility model is designed to provide one kind and avoids transformer rosin joint
Transformer, by the way that support leg is arranged on the shell of transformer, so that there are gaps between transformer and bottom, in Reflow Soldering
During, heat reflux is more uniform at the welding foot of transformer, is uniformly heated, and avoids rosin joint, improves transformer and PCB
Electrical connection stability between plate.
To achieve the above object, the utility model provides following technical solution:
A kind of transformer avoiding transformer rosin joint, including as described in the first purpose skeleton structure, be arranged in shell
The coil in portion, and the welding foot connecting with coil, the height of the support leg are less than the height of welding foot.
By using above-mentioned technical proposal, when welding foot is welded on pcb board, because of the setting of support leg, make
There are gaps between transformer and bottom, during Reflow Soldering, at the welding foot of transformer heat reflux it is more uniform, can
Rosin joint is avoided, improves and is electrically connected stability between transformer and pcb board.
Further, the shell includes upper housing and lower case, passes through a glue connection between the upper housing and lower case
It connects.
By using above-mentioned technical proposal, shell is in split settings, convenient for the installation of coil, after coil is installed,
Upper housing and lower case can be carried out spelling merga pass dispensing and fix the two, enable coil be installed in by upper housing and
In the cavity of lower case composition, convenient for the assembling of transformer.
Further, the pressing plate for abutting the two is provided between the upper housing inside and coil.
By using above-mentioned technical proposal, the setting of pressing plate can bucking coil act directly on the active force of upper housing, reach
To the effect of protection upper housing, while it can be improved the bonding strength between coil and shell.
Compared with prior art, the utility model has the advantages that:
1, it by the way that support leg is arranged on the shell of transformer, so that there are gaps between transformer and bottom, is flowing back
During weldering, heat reflux is more uniform at the welding foot of transformer, is uniformly heated, avoids rosin joint, improve transformer with
Electrical connection stability between pcb board；
2, the setting of backflash can increase the clearance space between shell and pcb board, enable hot gas in welding machine more
More penetrates in gap, improves uniformity of the hot gas at welding foot, can further avoid rosin joint, improves transformer and pcb board
Between electrical connection stability.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the transformer of an embodiment of the present invention；
Fig. 2 is the overall structure diagram of the transformer of the another side of Fig. 1；
Fig. 3 is the overall structure diagram at Fig. 1 transformer bottom surface visual angle；
Fig. 4 is the overall structure diagram at transformer bottom surface visual angle in another embodiment；
Fig. 5 is the overall structure diagram at another embodiment transformer bottom surface visual angle, and basically illustrating support leg is four
Fulcrum；
Fig. 6 is the overall structure diagram at another embodiment transformer bottom surface visual angle, basically illustrates support leg setting and exists
The edge of lower case bottom surface four；
Fig. 7 is the overall structure diagram at another embodiment transformer bottom surface visual angle, basically illustrates support leg setting and exists
Lower case bottom surface opposite sides；
Fig. 8 is the overall structure diagram at another embodiment transformer bottom surface visual angle, basically illustrates support leg setting and exists
The lower case two sides vertical with welding foot.
Appended drawing reference: 100, skeleton structure；110, shell；111, upper housing；112, lower case；120, support leg；121,
Backflash；122, the first support portion；123, the second support portion；124, adhesive portion；125, through slot；126, salient point is supported；130, even
Contact pin；131, mounting groove；132, mounting blocks；133, mounting hole；200, coil；300, welding foot；400, dispensing；500, pressing plate；
600, insulated conductor.
Specific embodiment
With reference to the accompanying drawings and examples, the utility model is described in detail.
A kind of transformer avoiding transformer rosin joint, referring to Fig.1, including skeleton structure 100, setting are in skeleton structure 100
On coil 200, and the welding foot 300 being connect with coil 200.In the present embodiment, skeleton structure 100 combined with Figure 1 and Figure 2,
Including shell 110 and the support leg 120 that 110 two sides of shell are arranged in.Shell 110 includes upper housing 111 and lower case 112, on
Cavity is formed after 112 split of shell 111 and lower case can be used to install coil 200, after installing coil 200,111 He of upper housing
It is fixedly connected between lower case 112 by dispensing 400.In the present embodiment, the position of dispensing 400 is located at 120 place of support leg
Two sides can keep the smoothness of the other two sides of shell 110, promote the aesthetics of transformer entirety.In addition, in order to improve coil
200 firmness installed in shell 110, while reducing the direct stress that coil 200 acts directly on upper housing 111, upper
The pressing plate 500 for abutting the two is provided between 111 inside of shell and coil 200.The both ends of pressing plate 500 are integrally formed upward turn over
Side is not easy to be detached from upper housing 111 in upper housing 111 simultaneously so that pressing plate 500 is easy to install.
Referring to Fig. 3,120 shape of support leg of 110 two sides of shell is different, wherein the support leg 120 Yu lower case 112 of side
It is bonded and exceeds the bottom surface of lower case 112, one end without departing from 112 bottom surface of lower case extends outwardly and is provided with connection sheet 130, even
The mounting groove 131 being uniformly provided with outside several connections in contact pin 130 forms mounting blocks 132 between adjacent fitting grooves 131.Its
In, mounting groove 131 can accommodate at least two insulated conductors 600, the embeddable mounting groove of insulated conductor 600 connecting with coil 200
In 131, so that the cabling of transformer is more neat.Mounting blocks 132 are provided with towards 110 bottom side of shell for erecting and welding
Welding foot 300 can be first placed in mounting hole 133 by the mounting hole 133 of foot 300 when assembling transformer, then be embedded in
Insulated conductor 600 in mounting groove 131 connects, recycle insulating cement by welding foot 300, insulated conductor 600 and connection sheet 130 into
Row is fixed, and the bonding strength of welding foot 300 is improved.
The L-shaped setting in section of the support leg 120 of the other side, including the first support portion 122 and the second support portion 123.The
One support portion, 122 one end has been wholely set adhesive portion 124 and Nian Jie with lower case 112, and the other end is vertical with the second support portion 123
Connection, the second support portion 123 extend towards 112 bottom of lower case, and the length extended is identical as the support leg 120 of the other side,
First support portion 122, the second support portion 123 and adhesive portion 124 form backflash 121.It should be noted that adhesive portion 124
Height be lower than the second support portion 123 height so that backflash 121 when shell 110 is installed on pcb board with 110 bottom of shell
Portion's connection, it is preferred that adhesive portion 124 and 112 bottom of lower case in the present embodiment maintain an equal level.Likewise, in support leg 120 along
First support portion, 122 direction is integrally extended outward connection sheet 130, is uniformly provided with outside several connections in connection sheet 130
The mounting groove 131 in portion forms mounting blocks 132 between adjacent fitting grooves 131.Wherein, mounting groove 131 can accommodate at least two eradication edge
Conducting wire 600, in the embeddable mounting groove 131 of insulated conductor 600 being connect with coil 200, so that the cabling of transformer is more neat.
Mounting blocks 132 are provided with the mounting hole 133 for erecting and welding foot 300 towards 110 bottom side of shell.
It should be noted that the height of above-mentioned support leg 120 is respectively less than the height of welding foot 300.
In other implementations, the support leg 120 of two sides highly can be different, convenient for thermal current enter transformer and pcb board it
Between gap.It can also start the through slot 125 of several communication gaps in support leg 120, as shown in figure 4, convenient between gap
Heat reflux.
In other embodiments, as shown in figure 5, support leg 120 is four cylindrical fulcrums, height is in lower case 112
Between welding foot 300.As shown in fig. 6, connection sheet 130 is directly connect with lower case 112, and in the bottom surface of lower case 112
Four edges are provided with support salient point 126, to support salient point 126 as support leg 120, the height of salient point 126 are supported to be lower than
Welding foot 300 height.Or as shown in fig. 7, support salient point is provided at the opposite sides of the bottom surface of lower case 112
126, and the support salient point 126 of two sides is located at the middle position of side, balance when keeping transformer to install.Certainly,
The support leg 120 of strip or arc can be set in the bottom surface of lower case 112, it can be in the bottom surface any angle of lower case 112 point
Cloth.Alternatively, support leg 120 is in a ring, and is arranged through slot in the support leg 120 of annular, connect with 300 position of welding foot
It is logical；Convenient for the circulation of hot gas.
In other embodiments, as shown in figure 8, connection sheet 130 is directly connect with lower case 112, and in lower case 112
In addition two sides are provided with support leg 120.Support leg 120 can be along the side setting in a strip shape of lower case 112.Or support leg
120 can be arranged in dotted in two sides.
The working principle of the present embodiment:
When assembling, coil 200 is mounted in lower case 112, then pressing plate 500 is placed in upper housing 111, upper casing
The two is fixed with dispensing 400 after splicing for body 111 and lower case 112.The insulated conductor 600 connecting with coil 200 is embedded in
It in mounting groove 131, is attached with the welding foot 300 being inserted in mounting hole 133, is then carried out welding foot 300 with insulating cement
It is fixed.
When the transformer is mounted on pcb board, because of the setting of support leg 120 so that transformer and bottom it
Between there are gaps, during Reflow Soldering, at the welding foot 300 of transformer heat reflux it is more uniform, be uniformly heated, keep away
Exempt from rosin joint, improves and be electrically connected stability between transformer and pcb board.
The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited merely to
Above-described embodiment, technical solution belonging to the idea of the present invention belong to the protection scope of the utility model.It should refer to
Out, for those skilled in the art, it is without departing from the principle of the utility model it is several improvement and
Retouching, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (10)
1. a kind of transformer framework structure for avoiding transformer rosin joint, including shell (110), which is characterized in that the shell
(110) it is provided on and is used to support the support leg that shell (110) makes shell (110) form gap between bottom and pcb board
(120)。
2. the transformer framework structure according to claim 1 for avoiding transformer rosin joint, which is characterized in that the support leg
(120) shell (110) two sides are set to.
3. the transformer framework structure according to claim 2 for avoiding transformer rosin joint, which is characterized in that at least one of
It is provided with backflash (121) between the support leg (120) and shell (110) of side, the backflash (121) is by shell (110)
It is connected to when being installed on pcb board with shell (110) bottom.
4. avoiding the transformer framework structure of transformer rosin joint in -3 described in any one according to claim 1, feature exists
In the support leg (120) extends outwardly far from shell (110) side to be provided with connection sheet (130), the connection sheet (130)
On offer mounting groove (131) outside several connections, form mounting blocks (132) between adjacent fitting grooves (131).
5. the transformer framework structure according to claim 4 for avoiding transformer rosin joint, which is characterized in that the mounting groove
(131) at least two insulated conductors (600) can be accommodated.
6. the transformer framework structure according to claim 4 for avoiding transformer rosin joint, which is characterized in that the mounting blocks
(132) mounting hole (133) for erecting and welding foot (300) is provided with towards shell (110) bottom side.
7. the transformer framework structure according to claim 2 for avoiding transformer rosin joint, which is characterized in that the support of two sides
The bearing height of foot (120) is identical.
8. a kind of transformer for avoiding transformer rosin joint, which is characterized in that including as described in any one in claim 1-7
Skeleton structure (100), the setting coil (200) internal in shell (110), and the welding foot being connect with coil (200)
(300), the height of the support leg (120) is less than the height of welding foot (300).
9. the transformer according to claim 8 for avoiding transformer rosin joint, which is characterized in that the shell (110) includes
Upper housing (111) and lower case (112) are connected between the upper housing (111) and lower case (112) by dispensing (400).
10. the transformer according to claim 9 for avoiding transformer rosin joint, which is characterized in that in the upper housing (111)
The pressing plate (500) for abutting the two is provided between side and coil (200).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821734434.4U CN208970283U (en) | 2018-10-23 | 2018-10-23 | A kind of transformer avoiding transformer rosin joint and its skeleton structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821734434.4U CN208970283U (en) | 2018-10-23 | 2018-10-23 | A kind of transformer avoiding transformer rosin joint and its skeleton structure |
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| Publication Number | Publication Date |
|---|---|
| CN208970283U true CN208970283U (en) | 2019-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821734434.4U Active CN208970283U (en) | 2018-10-23 | 2018-10-23 | A kind of transformer avoiding transformer rosin joint and its skeleton structure |
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| CN (1) | CN208970283U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109256261A (en) * | 2018-10-23 | 2019-01-22 | 深圳市海勤科技有限公司 | A kind of transformer avoiding transformer rosin joint and its skeleton structure |
-
2018
- 2018-10-23 CN CN201821734434.4U patent/CN208970283U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109256261A (en) * | 2018-10-23 | 2019-01-22 | 深圳市海勤科技有限公司 | A kind of transformer avoiding transformer rosin joint and its skeleton structure |
| CN109256261B (en) * | 2018-10-23 | 2023-12-15 | 深圳市海勤科技有限公司 | Transformer for avoiding transformer cold joint and framework structure thereof |
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