CN109461559B - High-reliability contact pin transformer - Google Patents
High-reliability contact pin transformer Download PDFInfo
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- CN109461559B CN109461559B CN201811613267.2A CN201811613267A CN109461559B CN 109461559 B CN109461559 B CN 109461559B CN 201811613267 A CN201811613267 A CN 201811613267A CN 109461559 B CN109461559 B CN 109461559B
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- supporting
- shell
- bottom plate
- positioning
- side plate
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- 238000001125 extrusion Methods 0.000 claims abstract description 36
- 239000003292 glue Substances 0.000 claims description 17
- 238000004804 winding Methods 0.000 claims description 7
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- 238000005452 bending Methods 0.000 claims description 4
- 238000002955 isolation Methods 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920001707 polybutylene terephthalate Polymers 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- -1 polybutylene terephthalate Polymers 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
- H01F27/04—Leading of conductors or axles through casings, e.g. for tap-changing arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/06—Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/29—Terminals; Tapping arrangements for signal inductances
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/06—Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type
- H01F2027/065—Mounting on printed circuit boards
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/29—Terminals; Tapping arrangements for signal inductances
- H01F2027/297—Terminals; Tapping arrangements for signal inductances with pin-like terminal to be inserted in hole of printed path
Abstract
The invention provides a high-reliability pin transformer, which comprises a shell with an opening, a bottom plate and an electromagnetic component; the electromagnetic component comprises a supporting seat, an electromagnetic coil and a contact pin, wherein the supporting seat is positioned in an inner cavity of the shell, the contact pin penetrates through the bottom plate and extends out of the shell, a clamping block, an extrusion lug and a supporting block are arranged on the side wall of the shell, and the supporting block is connected with the supporting seat in a positioning mode through a positioning structure. According to the high-reliability contact pin transformer, the two sides of the bottom plate are connected with the extrusion protruding blocks in an extrusion mode, so that the bottom plate and the shell are limited to move relatively in one direction, meanwhile, the supporting blocks and the supporting seats are connected in a positioning mode through the positioning structure, so that the bottom plate and the shell are limited to move relatively in the other direction, on the other hand, the bottom plate is connected with the clamping grooves in a clamping mode through the clamping blocks, further, the shell and the bottom plate are connected in a fastening mode without movement gaps, and the structure is stable and reliable.
Description
Technical Field
The invention relates to the field of transformers, in particular to a high-reliability pin transformer.
Background
The contact pin transformer is an electronic connection product for connecting the transformer with a circuit board through contact pins, and the transformer is used in telephone terminal circuits, network communication and trunk line product lines to regulate the quality and state of a communication circuit. The pin transformer is generally formed by a shell and a bottom plate to form a connecting structure, and electromagnetic components are arranged in an inner cavity formed by the shell and the bottom plate;
the contact pin transformer in the prior art is formed by filling black glue between the shell and the bottom plate to form fastening connection, but the black glue pollutes the environment, damages human bodies, has long assembly time, cannot control the consumption of the black glue when in glue filling, causes the phenomenon of shell expansion due to excessive consumption of the black glue, and has low yield;
on the other hand, the shell and the bottom plate are fastened and connected through the buckle structure, but a connecting gap is usually formed between the shell and the bottom plate due to the buckle connecting structure in the prior art, so that the contact pin transformer has relative motion between the shell and the bottom plate in the plugging process, the plugging is inconvenient to use, and the transformer is easy to damage.
Therefore, a highly reliable pin transformer is needed to solve the above-mentioned problems.
Disclosure of Invention
The invention provides a high-reliability contact pin transformer, wherein two sides of a bottom plate are connected with extrusion convex blocks in an extrusion way, so that the relative movement of the bottom plate and a shell in one direction is limited, meanwhile, a supporting block is connected with a supporting seat in a positioning way through a positioning structure, so that the relative movement of the bottom plate and the shell in the other direction is limited, on the other hand, the bottom plate is connected with a clamping groove through a clamping block in a clamping way, so that the shell and the bottom plate are connected in a fastening way without a movement gap, and the problems that the contact pin transformer in the prior art is easy to pollute the environment, is harmful to human bodies, is long in assembly complex man-hour and is low in yield are solved; and carry out fastening connection with shell and bottom plate through buckle structure for there is the connection clearance between shell and the bottom plate, makes contact pin transformer at plug in-process, has relative motion between shell and the bottom plate, and plug uses inconveniently, and damages the problem of transformer very easily.
In order to solve the technical problems, the technical scheme of the invention is as follows: a high-reliability pin transformer comprises a shell with an opening, a bottom plate and an electromagnetic component;
the electromagnetic component comprises a supporting seat, an electromagnetic coil fixedly arranged on the supporting seat and a contact pin inserted on the supporting seat, the bottom plate is connected to the shell to seal the opening, the supporting seat is positioned in the inner cavity of the shell, and the contact pin penetrates through the bottom plate and extends out;
with four curb plates on the shell with the opening is first curb plate, second curb plate, third curb plate and fourth curb plate respectively, is provided with the fixture block in the inboard of relative first curb plate and third curb plate be provided with the draw-in groove that is used for being connected with the fixture block buckle in the both sides of second curb plate and fourth curb plate inboard be close to open-ended upper portion is provided with one or more extrusion lug, lower part is provided with one or more supporting shoe, extrusion lug be used for with the both sides of bottom plate form extrusion contact, the supporting shoe is used for supporting the supporting seat, the supporting shoe with pass through location structure location connection between the supporting seat.
In the invention, the positioning structure comprises a positioning block and a positioning groove, wherein the positioning block is arranged on one surface of the supporting block close to the opening, the positioning groove is arranged on the supporting seat, the width of the positioning block is larger than that of the supporting block along the direction vertical to the second side plate, the positioning block extends on the side surface of the supporting block, the positioning block, the supporting block and the shell are of an integrated structure,
and a plurality of through holes for penetrating the external device to extrude the electromagnetic component are formed in the outer side surface, far away from the opening, of the shell.
In the invention, the thickness of the first side plate is equal to that of the third side plate, the thickness of the second side plate is equal to that of the fourth side plate, the thickness of the first side plate is larger than that of the second side plate, three extrusion convex blocks are arranged on the inner wall of the shell, and the thickness of the middle extrusion convex block is larger than that of the extrusion convex blocks at two ends.
In the invention, the supporting seat is connected to the bottom plate, a positioning column is arranged on the bottom plate, and a positioning hole for positioning connection with the positioning column is arranged on the supporting seat;
the bottom in the locating hole is provided with the elastic block, the elastic block is used for with the reference column elastic contact, makes the reference column to the supporting seat forms elastic support.
In the invention, the pins are connected to the bottom plate and the supporting seat in a penetrating way, two rows of pins are arranged along the extending direction of the supporting seat, fixing grooves corresponding to the pins one by one are arranged on two sides of the supporting seat, one end of each pin, which is far away from the bottom plate, is limited in the corresponding fixing groove through bending, the end of each pin extends out of the corresponding fixing groove so as to be electrically connected with the electromagnetic coil in a winding way, and supporting protruding blocks are further arranged on one surface, which is close to the bottom plate, of the supporting seat so that the supporting seat and the bottom plate are separated by a set distance, and interference between the pins and the bottom plate is avoided.
The electromagnetic coil is arranged on the support seat, a setting groove for setting the electromagnetic coil is formed in the support seat, an adhesive layer is arranged between the electromagnetic coil and the inner wall surface of the setting groove, insulation is formed between the electromagnetic coil and the contact pin, and an isolation convex strip for isolating a plurality of electromagnetic coils is arranged in the setting groove.
In the invention, a plurality of supporting seats with parallel extending directions are connected on the bottom plate, a strip-shaped supporting boss for supporting the electromagnetic component is arranged on the bottom surface in the shell, the supporting boss passes through a center point on the bottom surface in the shell, and the extending direction of the supporting boss is perpendicular to the extending direction of the supporting seats.
And when the electromagnetic component is fixedly connected to the shell through the bottom plate, the electromagnetic component extrudes the supporting boss to enable the elastic gasket to be in an elastic compression state.
Further, the supporting boss is formed by connecting a plurality of boss sections corresponding to the supporting seats one by one, the boss sections are connected through a connecting structure, the connecting structure comprises a connecting block and a connecting groove, the connecting block and the connecting groove are respectively arranged at two ends of one boss section, and the connecting groove penetrates through the end part of the boss section;
the extending direction of the connecting groove is perpendicular to the bottom surface in the shell, and elastic gaskets with equal or unequal numbers are arranged between the plurality of boss sections and the bottom surface in the shell;
two opposite inner wall surfaces of the shell are respectively provided with a fixed block, one fixed block is provided with the connecting block, and the other fixed block is provided with the connecting groove, so that the boss section is fixedly connected with the shell through the connecting structure.
In the invention, a connecting hole for the pin to penetrate is arranged on the bottom plate, the connecting hole comprises a conical hole section which is favorable for the pin to penetrate and a round hole section for specifying the pin, and the pin is connected in the round hole section in an interference manner.
Compared with the prior art, the invention has the beneficial effects that: according to the high-reliability contact pin transformer, the two sides of the bottom plate are connected with the extrusion protruding blocks in an extrusion mode, so that the bottom plate and the shell are limited to move relatively in one direction, meanwhile, the supporting blocks and the supporting seats are connected in a positioning mode through the positioning structure, so that the bottom plate and the shell are limited to move relatively in the other direction, on the other hand, the bottom plate is connected with the clamping grooves in a clamping mode through the clamping blocks, further, the shell and the bottom plate are connected in a fastening mode without movement gaps, and the structure is stable and reliable.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments are briefly described below, and the drawings in the following description are only drawings corresponding to some embodiments of the present invention.
Fig. 1 is an exploded view of the high reliability pin transformer of the present invention.
Fig. 2 is a sectional view taken along the line A-A in fig. 1.
Fig. 3 is a perspective view of the housing of the high reliability pin transformer of the present invention.
Fig. 4 is a bottom view of the housing of the high reliability pin transformer of the present invention.
Fig. 5 is a left side view of the support base and pins of the high reliability pin transformer of the present invention.
Fig. 6 is a top view of a support base of the highly reliable pin transformer of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The contact pin transformer in the prior art is formed by filling black glue between the shell and the bottom plate to form fastening connection, but the black glue pollutes the environment, damages human bodies, has long assembly time, cannot control the consumption of the black glue when in glue filling, causes the phenomenon of shell expansion due to excessive consumption of the black glue, and has low yield;
on the other hand, the shell and the bottom plate are fastened and connected through the buckle structure, but a connecting gap is usually formed between the shell and the bottom plate due to the buckle connecting structure in the prior art, so that the contact pin transformer has relative motion between the shell and the bottom plate in the plugging process, the plugging is inconvenient to use, and the transformer is easy to damage.
The following is a preferred embodiment of a high-reliability pin transformer that solves the above technical problems.
Referring to fig. 1, 2 and 4, fig. 1 is a schematic diagram of an explosion structure of a highly reliable pin transformer according to the present invention (the upper housing part in fig. 1 is in a cross-sectional state, the bottom plate, the supporting seat and the pins in the lower part are in an un-cut state), fig. 2 is a cross-sectional view taken along A-A section line in fig. 1 (the pins and the bottom plate in fig. 1 and 2 are in an un-connected state, and in the illustrated orientation, the pins can still be continuously inserted downwards until the supporting bumps are in limited contact with the bottom plate, and fig. 4 is a bottom view of the housing of the highly reliable pin transformer according to the present invention.
The words "first," "second," and the like in the terminology of the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance and not as limiting the order of precedence.
In the drawings, like structural elements are denoted by like reference numerals.
The preferred embodiment of the high-reliability pin transformer provided by the invention is as follows: a highly reliable pin transformer includes a housing 11 having an opening, a bottom plate 12, and an electromagnetic component.
The electromagnetic component comprises a supporting seat 13, an electromagnetic coil fixedly arranged on the supporting seat 13 and a contact pin 14 inserted on the supporting seat 13, the electromagnetic coil in the embodiment is composed of an annular magnet and a conductive wire wound on the magnet, the electromagnetic coil is not shown in the figure, the electromagnetic coil is adhered to the supporting seat through glue, the bottom plate 12 is connected to the shell 11 to seal an opening, the supporting seat 13 is positioned in an inner cavity of the shell 11, and the contact pin 14 penetrates through the bottom plate 12 to extend out to the outside for being electrically connected with a corresponding component.
Wherein, be provided with the connecting hole that is used for contact pin 14 to link up on bottom plate 12, the connecting hole includes the taper hole section 123 that does benefit to contact pin 14 to penetrate and is used for prescribing contact pin 14's round hole section 124, contact pin 14 interference connection in round hole section 124, and taper hole section 123 and round hole section 124 all can refer to fig. 2.
For convenience of explanation, four side plates adjacent to the opening on the housing 11 are respectively a first side plate, a second side plate, a third side plate and a fourth side plate, the upper side plate and the lower side plate in fig. 4 are respectively a second side plate and a fourth side plate, and the left side plate and the right side plate in fig. 4 are respectively a first side plate and a third side plate.
The clamping blocks 114 are arranged on the inner sides of the first side plate and the third side plate which are opposite, clamping grooves 121 used for being in clamping connection with the clamping blocks 114 are arranged on the two sides of the bottom plate 12, the two sides of the bottom plate 12 can be respectively separated from the first side plate and the third side plate by a set distance, a disassembly gap is formed, and the set distance is preferably smaller than 1mm.
One or more extrusion protruding blocks 113 are arranged on the upper portions, close to the openings, of the inner sides of the second side plate and the fourth side plate, one or more supporting blocks 111 are arranged on the lower portions, the extrusion protruding blocks 113 are used for forming extrusion contact with two sides of the bottom plate 12, the supporting blocks 111 are used for supporting the supporting seat 13, and the supporting blocks 111 are connected with the supporting seat 13 in a positioning mode through a positioning structure.
It will be appreciated that the thickness of the protrusion of the extrusion protrusion 113 is smaller than that of the support block 111, the extrusion protrusion 113 does not interfere with the support base 13, and the extrusion protrusion 113 does not affect the installation of the support base 13 into the inner cavity of the housing 11.
Two sides of the bottom plate 12 form extrusion connection with the extrusion convex blocks 113, so that the relative movement of the bottom plate 12 and the shell 11 in one direction is limited, namely, the relative movement in the horizontal direction in fig. 1 is limited, meanwhile, the supporting blocks 111 and the supporting seats 13 are connected in a positioning mode through positioning structures, so that the relative movement of the bottom plate 12 and the shell 11 in the other direction, namely, the relative movement in the horizontal direction in fig. 2 is limited, and therefore, the bottom plate and the shell can form fastening connection without a movement gap, and the structure is stable and reliable.
On the other hand, the clamping block 114 and the clamping groove 121 are matched to form a clamping connection, so that the shell 11 and the bottom plate 12 are fixedly connected.
The shell 11 can be formed by injection molding, the shell 11 is preferably square, the deformation performance of the side plates is better, the disassembly and assembly are convenient, the shell 11 can be made of PBT (polybutylene terephthalate) material, and the shell has excellent chemical stability, mechanical strength, electrical insulation property and thermal stability; of course, the housing 11 may be made of other materials as required.
In addition, the number of the pins 14 on the supporting seat 13 can be increased or decreased according to practical situations, and only the housing 11 and the supporting seat 13 need to be scaled correspondingly.
The positioning structure in this embodiment includes a positioning block 112 and a positioning groove 135, where the positioning block 112 can be selectively disposed on the supporting block 111 or the supporting seat 13, and the positioning groove 135 is correspondingly disposed.
Referring to fig. 1 and 2 correspondingly, the positioning block 112 in the present embodiment is disposed on a side of the supporting block 111 near the opening, the positioning groove 135 is disposed on the supporting seat 13, and meanwhile, along a direction perpendicular to the second side plate, the width of the positioning block 112 is greater than that of the supporting block 111, and the positioning block 112 extends on a side surface of the supporting block 111, so that the strength of the positioning block 112 is higher and the positioning stability is better.
Preferably, the positioning block 112, the supporting block 111 and the housing 11 are integrally formed.
Referring to fig. 2 and 5, fig. 5 is a left side view of a supporting seat and a pin of the high-reliability pin transformer according to the present invention.
Preferably, the end of the positioning block 112 near the opening can be chamfered, so that the cross section of the end of the positioning block 112 near the opening is smaller, and the positioning groove 135 is correspondingly designed, that is, a groove structure with a trapezoid cross section in fig. 5 is formed, so that positioning assembly is facilitated, and positioning fit of extrusion fastening can be formed after positioning connection.
Wherein, set up the supporting shoe 111 in the inboard lower part of second curb plate and fourth curb plate, form the support to bottom plate 12 and electromagnetic components and parts through supporting shoe 111 for supporting seat 13 can very convenient the packing into the inner chamber of shell 11, after the preliminary location of shell 11 inner wall, locating slot 135 can be fine form the location with locating piece 112 and be connected, simple to operate supports stably.
In this embodiment, the thickness of the first side plate is equal to the thickness of the third side plate, the thickness of the second side plate is equal to the thickness of the fourth side plate, the thickness of the first side plate is greater than the thickness of the second side plate, the thicknesses of the second side plate and the fourth side plate are thinner, deformation is easier, interference connection fit with the bottom plate 12 is facilitated, and the thicknesses of the first side plate and the third side plate are thicker, so that the overall strength of the housing 11 is stronger.
In this embodiment, three extrusion protruding blocks 113 are disposed on the inner wall of the housing 11, and the side plates in the gap regions between adjacent extrusion protruding blocks 113 are thinner, so as to facilitate deformation, and meanwhile, the deformation amount of the middle part of the side plate is maximum in the deformation process, so that the thickness of the middle extrusion protruding block 113 is set to be greater than that of the extrusion protruding blocks 113 at two ends, and the three extrusion protruding blocks 113 can form better interference connection with the bottom plate 12 after deformation.
It should be appreciated that the crush lobes 113 are thin sheets of relatively small thickness that are integrally formed with the housing 11.
In this embodiment, the supporting seat 13 is connected to the bottom plate 12, the positioning column 122 is provided on the bottom plate 12, and the positioning hole 134 for positioning connection with the positioning column 122 is provided on the supporting seat 13, so that the supporting seat 13 and the bottom plate 12 form a relatively stable connection, and meanwhile, the supporting seat 13 is connected with the housing 11 in cooperation with the connection of the bottom plate 12 and the housing 11, so that the stability of the overall structure formed by the three is very strong;
optionally, an elastic block 1341 is disposed at the bottom of the positioning hole 134, where the elastic block 1341 is used to make elastic contact with the positioning column 122, so that the positioning column 122 forms an elastic support for the supporting seat 13, and the stability of supporting the supporting seat 13 is enhanced.
Wherein, since the plurality of supporting seats 13 can be connected on the bottom plate 12, and since the shapes and sizes of the supporting seats 13 are basically consistent, the electromagnetic coils arranged on the supporting seats 13 can be of different specifications, in order to install and connect the electromagnetic coils of corresponding specifications to the set positions on the bottom plate 12, the diameters or shapes of the positioning posts 122 on the bottom plate 12 can be set differently, and only the positioning holes 134 matched with the positioning posts 122 can be connected with the positioning holes in a positioning way, so that the supporting seats 13 with the electromagnetic coils of different specifications can be connected to the set positions on the bottom plate 12;
if the triangular prism-shaped, quadrangular prism-shaped, penta-prism-shaped and cylindrical positioning posts 122 are sequentially arranged on the bottom plate 12, the support base 13 matched with the positioning posts 122 is unique, and on the other hand, electromagnetic coils with corresponding specifications are required to be arranged on the support base 13 corresponding to the triangular prism-shaped positioning posts 122.
In addition, a setting groove 133 for setting an electromagnetic coil is provided on the supporting seat 13, the pins 14 are connected to the bottom plate 12 and the supporting seat 13 in a penetrating manner, two rows of pins 14 are arranged along the extending direction of the supporting seat 13, fixing grooves 131 corresponding to the pins 14 one by one are provided on two sides of the supporting seat 13, one end of each pin 14, which is far away from the bottom plate 12, is limited in the corresponding fixing groove 131 through bending, the end of each pin 14 extends out of the corresponding fixing groove 131 so as to be electrically connected with the electromagnetic coil in a winding manner, a winding groove 141 for winding a conductive wire connected with the electromagnetic coil is provided at the end of each pin 14, so that the winding connection stability is ensured, and the conductive wire of the electromagnetic coil in the setting groove 133 extends along the corresponding fixing groove 131 and is then wound and connected in the winding groove 141 at the end of the pin 14.
Wherein, a supporting bump 132 is further disposed on a surface of the supporting seat 13 near the bottom plate 12, and when the supporting bump 132 is in limiting contact with the bottom plate 12, the contact pin 14 and the bottom plate 12 are inserted in place, and meanwhile, a set distance is formed between the supporting seat 13 and the bottom plate 12, so that interference between the contact pin 14 and the bottom plate 12 is avoided.
Further, a glue layer is provided between the electromagnetic coil and the inner wall surface of the setting groove 133 so that insulation is formed between the electromagnetic coil and the pin 14.
Referring to fig. 5 and 6, fig. 6 is a top view of a supporting seat of the high-reliability pin transformer according to the present invention.
Be provided with the isolation sand grip 136 that is used for keeping apart a plurality of solenoid in setting up groove 133 for solenoid's setting position can be restricted, makes the distribution of a plurality of coil groups more even orderly, and the heat dissipation is also better, and wherein the length of isolation sand grip 136 can set up to be less than the width that sets up groove 133, saves the cost, avoids influencing the wiring of guide wire.
In this embodiment, a plurality of support bases 13 with parallel extending directions are connected to the bottom plate 12, a long-strip-shaped support boss 15 for supporting the electromagnetic component is provided on the bottom surface in the housing 11, the support boss 15 passes through a center point on the bottom surface in the housing 11, the extending direction of the support boss 15 is perpendicular to the extending direction of the support bases 13, one support boss 15 supports the plurality of support bases 13, and the support boss 15 supports the middle part of each support base 13, so that the support is stable.
Wherein, an elastic gasket 16 is arranged between the supporting boss 15 and the bottom surface in the shell 11, the elastic gasket 16 is preferably made of elastic silica gel, when the electromagnetic component is fixedly connected to the shell 11 through the bottom plate 12, the electromagnetic component presses the supporting boss 15 to enable the elastic gasket 16 to be in an elastic compression state, and the electromagnetic coil with position and height deviation can be well supported through elastic deformation of the elastic gasket 16 due to the deviation of the position and height of the electromagnetic coil on the supporting seat 13 when the electromagnetic coil is arranged on the arranging groove 133;
alternatively, both sides of the elastic pad 16 may be fixedly connected to the housing 11 and the support boss 15 respectively by glue, and the glue is adhered to enable the support boss 15 to be detached by applying an external force.
Preferably, since the electromagnetic coil may be irregularly disposed into the disposition groove 133 and thus it is likely to form the tip portion, the avoidance groove 151 is provided on the support boss 15, and the unstable support of the tip portion with the plane of the support boss 15 is prevented by the avoidance groove 151.
Referring to fig. 4, preferably, the supporting boss 15 may be formed by connecting a plurality of boss sections corresponding to the supporting seat one by one, the boss sections are connected by a connection structure, the connection structure includes a connection block 152 and a connection groove (the connection block 152 is connected in the connection groove in a matching manner, so the reference numeral 152 in the figure may also refer to the connection groove), the connection block 152 and the connection groove are respectively arranged at two ends of one boss section, and the connection groove is arranged at the end of the boss section in a penetrating manner;
the extending direction of the connecting groove is perpendicular to the bottom surface in the shell, and elastic gaskets 126 with the same or different numbers are arranged between the plurality of boss sections and the bottom surface in the shell, and as the supporting seat 13 can be provided with electromagnetic coils with different specifications, the heights of the boss sections can be adjusted by arranging the elastic gaskets 126 with different numbers, so that the boss sections can support the electromagnetic coils with different specifications, and the applicability is strong;
on the other hand, fixing blocks 116 are provided on both opposite inner wall surfaces of the housing 11, a connection block 1161 is provided on one fixing block 116, and a connection groove is provided on the other fixing block 116 so that the boss section can be fixedly connected with the housing 11 through a connection structure.
It will be appreciated that the shape of the connection block 152 is not limited to the trapezoidal shape in the figures from a cross-sectional view, but may also be T-shaped, circular (non-perfect circular), etc.
Referring to fig. 3, a plurality of through holes 115 for the external devices to penetrate through to extrude the electromagnetic components are provided on the outer side surface of the housing 11 away from the opening.
The working principle of the invention is as follows: before assembly, the pin 14 is inserted into the supporting seat 13, one end of the pin 14 is limited in the fixing groove 131 through bending, then a glue layer is arranged in the setting groove 133 of the supporting seat 13, the electromagnetic coil is arranged on the glue layer, and the conductive wire of the electromagnetic coil is wound and connected on the end part of the pin 14 extending out of the fixing groove 131, so that an electromagnetic component is formed;
then, a plurality of electromagnetic components are taken, the respective contact pins 14 correspondingly penetrate through and are inserted into the connecting holes on the bottom plate 12, the positioning columns 122 are in positioning connection with the positioning holes 134, the supporting convex blocks 132 are in limiting contact with the bottom plate 12, and at the moment, a set distance is reserved between the supporting seat 13 and the bottom plate 12, so that the extension end parts of the contact pins 14 have a clearance space;
then, taking the shell 11, loading the electromagnetic components into the inner cavity of the shell 11, gradually forming positioning fit between the positioning groove 135 on the supporting seat 13 and the positioning block 112, gradually forming interference contact between two sides of the bottom plate 12 and the extrusion convex blocks 113, gradually forming buckling connection between the clamping groove 121 on the bottom plate 12 and the clamping blocks 114, and finally supporting the supporting seat 13 by the supporting block 111, and supporting and contacting the electromagnetic coil with the supporting boss 15; thus, the assembly of the pin transformer is completed.
It can be understood that the disassembling process mainly consists in disassembling the bottom plate 12 and the electromagnetic component from the housing 11, wherein only the bottom plate 12 is in snap connection with the first side plate and the third side plate, so that the two sides of the bottom plate 12 can be separated from the first side plate and the third side plate by a set distance to form a disassembling gap;
when the electromagnetic component is required to be disassembled, the first side plate and the third side plate where the clamping block 114 is positioned are only required to be opened to a certain degree outwards, and meanwhile, the electromagnetic component can be easily extruded by using the external device through hole 115 to extrude the electromagnetic component, so that the electromagnetic component is simple and convenient;
alternatively, a sheet tool or a nail may be used to pry the bottom plate 12 only from the first side plate or the third side plate, so that the clamping block 114 and the clamping groove 121 are disconnected, then gradually move the bottom plate 12 and pry up the other side of the bottom plate 12, so that the clamping block 114 and the clamping groove 121 on the other side are disconnected, the bottom plate 12 is separated from the housing 11, and simultaneously, the electromagnetic component can be taken out;
the second disassembling mode has the advantage of low requirement on tools, but the extended pins 14 are easy to interfere with fingers, and when one side of the bottom plate 12 is pried, the supporting seat 13 is offset to one side, the supporting seat 13 is easy to interfere with the inner wall of the housing 11, and the disassembly is difficult.
Thus, the process of assembling and disassembling the high-reliability pin transformer of the preferred embodiment is completed.
The high-reliability contact pin transformer of the preferred embodiment is characterized in that two sides of the bottom plate are connected with the extrusion protruding blocks in an extrusion mode, so that the bottom plate and the shell are limited to move relatively in one direction, meanwhile, the supporting blocks and the supporting seats are connected in a positioning mode through the positioning structure, so that the bottom plate and the shell are limited to move relatively in the other direction, on the other hand, the bottom plate is connected with the clamping grooves through the clamping blocks in a clamping mode, further, the shell and the bottom plate are connected in a fastening mode without movement gaps, and the structure is stable and reliable.
In summary, although the present invention has been described in terms of the preferred embodiments, the preferred embodiments are not limited to the above embodiments, and various modifications and changes can be made by one skilled in the art without departing from the spirit and scope of the invention, and the scope of the invention is defined by the appended claims.
Claims (7)
1. A high-reliability pin transformer is characterized by comprising a shell with an opening, a bottom plate and an electromagnetic component;
the electromagnetic component comprises a supporting seat, an electromagnetic coil fixedly arranged on the supporting seat and a contact pin inserted on the supporting seat, the bottom plate is connected to the shell to seal the opening, the supporting seat is positioned in the inner cavity of the shell, and the contact pin penetrates through the bottom plate and extends out;
the four side plates adjacent to the opening on the shell are respectively a first side plate, a second side plate, a third side plate and a fourth side plate, clamping blocks are arranged on the inner sides of the first side plate and the third side plate which are opposite, clamping grooves used for being connected with the clamping blocks in a clamping mode are formed in the two sides of the bottom plate, one or more extrusion protruding blocks are arranged on the inner sides of the second side plate and the fourth side plate, which are close to the upper portion of the opening, one or more supporting blocks are arranged on the lower portion of the second side plate and the fourth side plate, the extrusion protruding blocks are used for being in extrusion contact with the two sides of the bottom plate, the supporting blocks are used for supporting the supporting seat, and the supporting blocks are connected with the supporting seat in a positioning mode through a positioning structure;
the bottom plate is connected with a plurality of supporting seats with parallel extending directions, a strip-shaped supporting boss for supporting the electromagnetic component is arranged on the bottom surface in the shell, the supporting boss passes through a center point on the bottom surface in the shell, and the extending direction of the supporting boss is perpendicular to the extending direction of the supporting seats;
an elastic gasket is arranged between the supporting boss and the bottom surface in the shell, and when the electromagnetic component is fixedly connected to the shell through the bottom plate, the electromagnetic component extrudes the supporting boss to enable the elastic gasket to be in an elastic compression state;
the support boss is formed by connecting a plurality of boss sections which are in one-to-one correspondence with the support seats, the boss sections are connected through a connecting structure, the connecting structure comprises a connecting block and a connecting groove, the connecting block and the connecting groove are respectively arranged at two ends of one boss section, and the connecting groove penetrates through the end part of the boss section;
the extending direction of the connecting groove is perpendicular to the bottom surface in the shell, and elastic gaskets with equal or unequal numbers are arranged between the plurality of boss sections and the bottom surface in the shell;
two opposite inner wall surfaces of the shell are respectively provided with a fixed block, one fixed block is provided with the connecting block, and the other fixed block is provided with the connecting groove, so that the boss section is fixedly connected with the shell through the connecting structure.
2. The high-reliability pin transformer according to claim 1, wherein the positioning structure comprises a positioning block and a positioning groove, the positioning block is arranged on one surface of the supporting block close to the opening, the positioning groove is arranged on the supporting seat, the width of the positioning block is larger than the width of the supporting block along the direction perpendicular to the second side plate, the positioning block extends on the side surface of the supporting block, and the positioning block, the supporting block and the housing are in an integrated structure;
and a plurality of through holes for penetrating the external device to extrude the electromagnetic component are formed in the outer side surface, far away from the opening, of the shell.
3. The high reliability pin transformer of claim 1, wherein the thickness of the first side plate is equal to the thickness of the third side plate, the thickness of the second side plate is equal to the thickness of the fourth side plate, the thickness of the first side plate is greater than the thickness of the second side plate, three extrusion bumps are provided on the inner wall of the housing, and the thickness of the middle extrusion bump is greater than the thickness of the extrusion bumps at both ends.
4. The high-reliability pin transformer according to claim 1, wherein the supporting seat is connected to the bottom plate, a positioning column is arranged on the bottom plate, and a positioning hole for positioning connection with the positioning column is arranged on the supporting seat;
the bottom in the locating hole is provided with the elastic block, the elastic block is used for with the reference column elastic contact, makes the reference column to the supporting seat forms elastic support.
5. The high-reliability pin transformer according to claim 1, wherein the pins are connected to the base plate and the supporting base in a penetrating manner, two rows of pins are arranged along the extending direction of the supporting base, fixing grooves corresponding to the pins one by one are formed in two sides of the supporting base, one end, away from the base plate, of each pin is limited in the fixing groove through bending, the end portion of each pin extends out of the fixing groove so as to be electrically connected with the electromagnetic coil in a winding manner, and supporting protruding blocks are further arranged on one surface, close to the base plate, of the supporting base so that a set distance is reserved between the supporting base and the base plate, and interference between the pins and the base plate is avoided.
6. The highly reliable pin transformer according to claim 5, wherein a setting groove for setting the electromagnetic coil is provided on the support base, a glue layer is provided between the electromagnetic coil and an inner wall surface of the setting groove so as to form insulation between the electromagnetic coil and the pin, and an isolation convex strip for isolating a plurality of the electromagnetic coils is provided in the setting groove.
7. The high-reliability pin transformer according to claim 1, wherein a connection hole for the pin to pass through is provided on the base plate, the connection hole includes a tapered hole section for facilitating the pin to pass through and a round hole section for defining the pin, and the pin is connected in the round hole section in an interference manner.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811613267.2A CN109461559B (en) | 2018-12-27 | 2018-12-27 | High-reliability contact pin transformer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811613267.2A CN109461559B (en) | 2018-12-27 | 2018-12-27 | High-reliability contact pin transformer |
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| CN109461559A CN109461559A (en) | 2019-03-12 |
| CN109461559B true CN109461559B (en) | 2023-12-29 |
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| CN113871141B (en) * | 2021-11-02 | 2023-08-18 | 李静 | Inductor shell insulation protection device |
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| CN109461559A (en) | 2019-03-12 |
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