CN209297895U

CN209297895U - A kind of transformer

Info

Publication number: CN209297895U
Application number: CN201920062020.XU
Authority: CN
Inventors: 雷福强
Original assignee: Jiangyin Liyi Electronic Technology Co Ltd
Current assignee: Jiangyin Liyi Electronic Technology Co Ltd
Priority date: 2019-01-14
Filing date: 2019-01-14
Publication date: 2019-08-23
Anticipated expiration: 2029-01-14

Abstract

The utility model discloses a kind of transformers, belong to the technical field of transformer, it is intended to provide a kind of transformer that measurement accuracy is high, its key points of the technical solution are that including transformer framework and the electromagnetic coil being arranged in transformer framework, primary side side plate and secondary side plate are respectively equipped on the transformer framework, draw primary side pin set in primary side side plate bottom edge, primary side pin set includes four linearly aligned stitch, secondary side board bottom pin set when drawing secondary, the pair side pin set includes four linearly aligned stitch, the scalable connection in bottom edge of the primary side pin set and primary side side plate；The scalable connection in bottom edge of pair the side pin set and secondary side plate；Spacer bar is equipped between the stitch of centre two on primary side side plate bottom edge.By the way that stitch is arranged to telescopic structure, in this way after transformer is installed on circuit board, interference of the electronic element on circuit board to transformer magnetic field itself can avoid.

Description

A kind of transformer

Technical field

The utility model relates to the technical field of electronic component, in particular to a kind of transformer.

Background technique

The most basic pattern of power transformer, including two groups of coils for being wound with conducting wire, and each other inductively to claim to close Together.It, will induction in another group of coil when an alternating current (having a certain given frequency) stream organizes coil in one of them The alternating voltage of identical frequency has been provided, and the voltage swing incuded depends on the degree of the coupling of two coils and magnetic interlinkage.

The coil for referring generally to connect AC power source is referred to as primary coil (Primary coil)；And across the electricity of this coil Pressure is referred to as primary voltage.It may be greater than or less than primary voltage in the induced voltage of secondary coil, be by primary coil and two What the turn ratio that secondary coil is asked was determined.Therefore, power transformer divides into boosting and two kinds of step-down transformer.Most electricity Source transformer has fixed iron core, thereon around once with secondary coil.High magnetic conductivity based on iron material, most magnetic flux Amount is confined in iron core, and therefore, two groups of coils can obtain the magnetic coupling of suitable high level whereby.In some transformers, line It encloses and is closely combined between iron core the two, once and the ratio of secondary voltage is almost identical as the coil ratio of the two.Cause This, the turn ratio of transformer may generally serve as the reference index of transformer boost or depressurization.

Transformer is very important device in ammeter, and the precision of transformer directly influences the measuring accuracy of ammeter, But the magnetic field for the electromagnetic field effects transformer that each electronic component generates in circuit board；In addition, the stitch between transformer Magnetic field can be interfered with each other, these factors can all cause the measurement accuracy of transformer to reduce.

Utility model content

The purpose of the utility model is to provide a kind of transformer, have the advantages that measurement accuracy is high.

The above-mentioned technical purpose of the utility model has the technical scheme that

A kind of transformer, including transformer framework and the electromagnetic coil being arranged in transformer framework, the transformer bone Primary side side plate and secondary side plate are respectively equipped on frame, primary side pin set is drawn on primary side side plate bottom edge, and primary side pin set includes Four linearly aligned stitch, secondary side board bottom pin set when drawing secondary, the pair side pin set include four linear The stitch of arrangement, the scalable connection in bottom edge of the primary side pin set and primary side side plate；The pair side pin set and secondary side plate The scalable connection in bottom edge；Spacer bar is equipped between the stitch of centre two on primary side side plate bottom edge.

By using above-mentioned technical proposal, stitch can be extended, electricity can be reduced in this way by transformer being installed on circuit board The magnetic interference of electronic component on the plate of road.Due to stitch be it is telescopic, can also be adjusted according to the transformer of different sizes, model It is wider to be applicable in orientation with respect to the length of transformer framework for stitch.In addition, spacer bar enhances two, left side stitch and two, right side The electromagnetic isolation effect of stitch, improves the precision of transformer, especially suitable in the high precision instruments such as ammeter.

Further, the primary side side plate and secondary side board bottom portion offer counterbore, and riffled tube, institute are embedded in counterbore It states and is carved with external screw thread on stitch, the stitch is screwed onto riffled tube.

By using above-mentioned technical proposal, when needing to adjust stitch lengths, stitch is screwed, the opposite of stitch can be adjusted Length additionally facilitates the installation and later maintenance of stitch.

Further, the stitch is equipped with round position-arresting disk, and the counterbore top open part is equipped with to be cooperated with position-arresting disk Round limiting slot, the position-arresting disk is threadedly coupled with stitch.

By using above-mentioned technical proposal, position-arresting disk is fastened in limiting slot, mitigates phase of the stitch with respect to transformer framework To shaking, the stability of both enhancings connection.With the adjusting of stitch relative altitude, position of the adjustable position-arresting disk on stitch It sets, forms mutual corresponding relationship.

Further, stitch group plate is equipped between the primary side pin set and primary side side plate, the stitch group board bottom portion is set There is plugboard, the stitch is fixedly connected with stitch group plate, and the transformer framework bottom surface is equipped with inserting groove, and plugboard is plugged on In inserting groove.

Different sizes can be entirely replaced corresponding to the transformer of different model and size by using above-mentioned technical proposal Primary side pin set and secondary side pin set, facilitate the scale volume production in later period.

Further, the inserting groove both ends are equipped with L shape card adapter plate, and the card adapter plate includes the first side plate and second side Plate, the first side plate interior sides wall are equipped with fixed block, clamping groove, the clamping groove and plugboard side are offered on the fixed block Board closes.

By using above-mentioned technical proposal, when installation, plugboard is pushed, plugboard pushes card adapter plate, two card adapter plate phases To contraction, clamping groove blocks the two sides of plugboard, the stability that enhancing inserting groove is connect with plugboard.

Further, primary side side plate bottom edge offers threaded hole, and external screw thread, spacer bar spiral shell are carved on the spacer bar It connects in threaded hole.

By using above-mentioned technical proposal, spacer bar and primary side side plate are by the way of being spirally connected, convenient disassembly, and can be with The protrusion height of spacer bar is adjusted as needed.

Further, two clamping cuttings, two clamping cutting difference are equipped on the primary side side plate and secondary side plate Positioned at primary side side plate bottom edge both ends or secondary side board bottom side both ends.

By using above-mentioned technical proposal, it is clamped cutting and is plugged in together with the circuit board in ammeter, further strengthen change The firmness that depressor is connect with circuit board can not only meet dropproof test, and further enhance ammeter use it is steady It is qualitative.

Further, the transformer framework is equipped with the magnet ring for preventing strong magnetic, sets between the magnet ring and transformer framework There is connection structure.

By using above-mentioned technical proposal, the magnetic force interference that magnet is formed is formed in magnet ring, and which reduces to electricity The direct interference of magnetic coil reduces " power stealing " behavior to improve the precision of transformer.

Further, the connection structure includes the hole for injecting glue being arranged on transformer framework, the transformer framework with It is glued between magnet ring.

By using above-mentioned technical proposal, when to injecting glue between transformer framework and magnet ring, glue flows into hole for injecting glue, in this way Colloid after solidification has not only bonded between transformer framework and the contact surface of magnet ring, is also permeated in transformer framework, enhancing Bonding strength between transformer framework and magnet ring.

Further, the primary side side plate and secondary side plate extend to form bottom plate, the transformer bone along opposite direction Two flexible clamping pawls being provided symmetrically on frame, two clamping pawls pass through magnet ring and abut with magnet ring top sides edge.

By using above-mentioned technical proposal, when installation, magnet ring is pressed down on, magnet ring bottom edge and bottom plate are contradicted, be clamped simultaneously Pawl blocks magnet ring upper surface, in this way can be installed together transformer framework and magnet ring.

In conclusion the utility model has the following beneficial effects:

1. in this way after transformer is installed on circuit board, can avoid electricity by the way that stitch is arranged to telescopic structure Interference of the electronic component to transformer magnetic field itself on the plate of road；

2. by the setting of spacer bar, it can be avoided interfering with each other between stitch, improve the operating accuracy of transformer；

3. can avoid external strong interference of the magnetic to transformer magnetic field, while enhancing the work of transformer by the setting of magnet ring Make reliability；

4. by the setting of clamping cutting the connective stability of transformer and circuit board can be enhanced, to enhance ammeter Job stability.

Detailed description of the invention

Fig. 1 is in embodiment 1 for embodying the connection relationship diagram between transformer and magnet ring；

Fig. 2 is in embodiment 1 for embodying the schematic diagram of transformer；

Fig. 3 is the cross-sectional view of transformer in embodiment 2；

Fig. 4 is the part A enlarged drawing of Fig. 3 in embodiment 2；

Fig. 5 is in embodiment 3 for embodying the schematic diagram that transformer is connect with magnet ring.

In figure, 1, transformer framework；11, bottom plate；12, hole for injecting glue；13, inserting groove；14, card adapter plate；141, the first side plate； 142, the second side plate；143, fixed block；144, clamping groove；15, it is clamped pawl；16, limiting slot；17, threaded hole；2, electromagnetic coil； 3, primary side side plate；31, primary side pin set；32, counterbore；33, riffled tube；4, secondary side plate；41, secondary side pin set；5, stitch； 51, position-arresting disk；6, fixed sleeving；7, spacer bar；8, it is clamped cutting；9, magnet ring；10, stitch group plate；101, plugboard.

Specific embodiment

The utility model is described in further detail below in conjunction with attached drawing.

Wherein identical components are presented with like reference characters.It should be noted that word used in the following description Language "front", "rear", "left", "right", "up" and "down" refer to the direction in attached drawing, word " bottom surface " and " top surface ", "inner" and "outside" refers respectively to the direction towards or away from geometric center of specific component.

Embodiment 1: a kind of transformer, as illustrated in fig. 1 and 2, including transformer framework 1, transformer framework 1 is interior to be equipped with electromagnetism Coil 2,1 bottom surface of transformer framework are respectively equipped with primary side side plate 3 and secondary side plate 4, and primary side side plate 3 draws primary side pin set 31, Primary side pin set 31 includes four linearly aligned stitch 5, and secondary side pin set 41, secondary side pin set are drawn in 4 bottom edge of secondary side plate 41 include four linearly aligned stitch 5.

Primary side pin set 31 and the scalable connection of primary side side plate 3, secondary side pin set 41 can be stretched with the equally use of secondary side plate 4 Contracting connection, the company between the connection structure between primary side pin set 31 and primary side side plate 3 and secondary side pin set 41 and secondary side plate 4 Binding structure is identical, and following embodiment is using the main connection structure for passing through primary side pin set 31 and primary side side plate 3 as explanation.

3 bottom of primary side side plate offers counterbore 32, riffled tube 33 pre-buried in injection molding in counterbore 32, on stitch 5 Equipped with external screw thread, stitch 5 is screwed onto riffled tube 33.

Stitch 5 is equipped with round position-arresting disk 51, and 32 top open part of counterbore is equipped with the round limit cooperated with position-arresting disk 51 Slot 16, position-arresting disk 51 is put into limiting slot 16 when installation, mitigates the shaking of stitch 5.

Flexible for fit pin 5, position-arresting disk 51, using being threadedly coupled, can adjust position-arresting disk 51 in needle with stitch 5 in this way Position on foot 5, in this way regardless of in which position, position-arresting disk 51 can be caught in limiting slot 16,

In addition, being bolted with fixed sleeving 6 on stitch 5, fixed sleeving 6 is mainly used for electromagnetic coil 2 and primary side pin Conducting wire between group 31 compresses, and conducting wire is avoided to be detached from the two, guarantees transformer stability.In addition, fixed sleeving 6 also has locking The effect of position-arresting disk 51 can limit the shaking of position-arresting disk 51.

Spacer bar 7 is equipped between the stitch 5 of centre two on 3 bottom edge of primary side side plate, 3 bottom edge of primary side side plate is located in the middle two Threaded hole 17 is offered between root stitch 5, external screw thread is carved on spacer bar 7, and spacer bar 7 is screwed onto threaded hole 17.Pass through rotation Spacer bar 7 is twisted, the protrusion height of spacer bar 7 is can be adjusted according to the needs, adapts to different operating conditions.

As shown in Fig. 2, 3 bottom edge of primary side side plate and 4 bottom edge of secondary side plate are equipped with two clamping cuttings 8, primary side side plate 3 with Connection structure and the secondary side plate 4 for being clamped cutting 8 are identical as the clamping connection structure of cutting 8, with primary side side plate 3 in the present embodiment It is illustrated with for the connection structure of clamping cutting 8.

Two clamping cuttings 8 are located at the both ends on 3 bottom edge of primary side side plate, and four clamping cuttings 8 are in distributed rectangular, uniformly Share stress, further enhances the stability that transformer is connect with circuit board in ammeter.

It is clamped cutting 8 and 3 bottom edge of primary side side plate is integrally formed, be integrally formed by injection molding machine, reduce subsequent operation, Greatly improve working efficiency.

Primary side side plate 3 and secondary side plate 4 extend to form bottom plate 11 along opposite direction, and 1 bottom edge of transformer framework contradicts, connection Structure includes that the hole for injecting glue 12 of the opposite side of 1 side wall of transformer framework is arranged in.

Transformer framework 1 is equipped with the magnet ring 9 for preventing strong magnetic, and magnet ring 9 is set in 1 head of transformer framework, and electromagnetic coil 2 In magnet ring 9.The magnetic field that magnet is formed is formed in magnet ring 9, to avoid the direct interference to electromagnetic coil 2.

When installation, the colloid under molten condition is infused between transformer framework 1 and magnet ring 9, while colloid flows into injecting glue In hole 12, in this way after colloid solidification, it can not only cling between magnet ring 9 and the contact surface of transformer framework 1, but also colloid is also It penetrates into transformer framework 1, so that magnet ring 9 and the connection status of transformer framework 1 are more stable.

Embodiment 2: a kind of transformer is equipped with stitch group as shown in Figures 3 and 4 between primary side pin set 31 and primary side side plate 3 Plate 10,10 bottom surface of stitch group plate are equipped with plugboard 101, and plugboard 101 and stitch group plate 10 are integrally formed, and stitch 5 is arranged On stitch group plate 10 and it is fixedly connected.

1 bottom surface of transformer framework is equipped with inserting groove 13, and plugboard 101 is plugged in inserting groove 13, and 13 both ends of inserting groove are set There is a L shape card adapter plate 14, card adapter plate 14 includes orthogonal first side plate 141 and the second side plate 142, the first side plate 141 and the Two side plates, 142 junction and transformer framework 1 are hinged, and 141 inner sidewall of the first side plate is equipped with fixed block 143, open on fixed block 143 Equipped with clamping groove 144, clamping groove 144 engages with 101 side plate of plugboard.

Specific implementation process: when installation, plugboard 101 is pushed, plugboard 101 pushes card adapter plate 14, two card adapter plates 14 Opposite to shrink, clamping groove 144 blocks the two sides of plugboard 101, mitigates the opposite shaking of card adapter plate 14, enhancing inserting groove 13 with The stability that plugboard 101 connects.

Embodiment 3: a kind of transformer, as shown in figure 5, two clamping pawls 15 being provided symmetrically on transformer framework 1, Two clamping pawls 15 are flared out, and its top surface is arranged to inclined-plane.

When installation, two clamping pawls 15 pass through magnet ring 9 and with 9 top sides of magnet ring along abutting, thus by magnet ring 9 and transformer Skeleton 1 is installed together.

This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but As long as all by the protection of Patent Law in the scope of the claims of the utility model.

Claims

1. a kind of transformer, including transformer framework (1) and the electromagnetic coil (2) being arranged in transformer framework (1), the change Primary side side plate (3) and secondary side plate (4) are respectively equipped on depressor skeleton (1), primary side pin is drawn on primary side side plate (3) bottom edge Group (31), primary side pin set (31) include four linearly aligned stitch (5), and secondary side plate (4) bottom edge is drawn secondary side and drawn Foot group (41), the pair side pin set (41) include four linearly aligned stitch (5), it is characterised in that: the primary side pin The scalable connection in bottom edge of group (31) and primary side side plate (3)；The pair side pin set (41) and the bottom edge of secondary side plate (4) can stretch Contracting connection；Spacer bar (7) are equipped between the stitch (5) of centre two on primary side side plate (3) bottom edge.

2. a kind of transformer according to claim 1, it is characterised in that: the primary side side plate (3) and secondary side plate (4) bottom Portion offers counterbore (32), is embedded with riffled tube (33) in counterbore (32), is carved with external screw thread, the needle on the stitch (5) Foot (5) is screwed onto riffled tube (33).

3. a kind of transformer according to claim 2, it is characterised in that: the stitch (5) is equipped with round position-arresting disk (51), counterbore (32) top open part is equipped with the round limiting slot (16) cooperated with position-arresting disk (51), the position-arresting disk (51) it is threadedly coupled with stitch (5).

4. any a kind of transformer according to claim 1~3, it is characterised in that: the primary side pin set (31) and original Stitch group plate (10) is equipped between avris plate (3), the stitch group plate (10) bottom is equipped with plugboard (101), the stitch (5) It is fixedly connected with stitch group plate (10), transformer framework (1) bottom surface is equipped with inserting groove (13), and plugboard (101) is plugged on In inserting groove (13).

5. a kind of transformer according to claim 4, it is characterised in that: inserting groove (13) both ends are clamped equipped with L shape Plate (14), the card adapter plate (14) include the first side plate (141) and the second side plate (142), the first side plate (141) inner sidewall It equipped with fixed block (143), is offered clamping groove (144) on the fixed block (143), the clamping groove (144) and plugboard (101) side plate engages.

6. a kind of transformer according to claim 1, it is characterised in that: primary side side plate (3) bottom edge offers screw thread Hole (17), external screw thread is carved on the spacer bar (7), and spacer bar (7) is screwed onto threaded hole (17).

7. a kind of transformer according to claim 1, it is characterised in that: on the primary side side plate (3) and secondary side plate (4) Two clamping cuttings (8) are equipped with, two clamping cuttings (8) are located at primary side side plate (3) bottom edge both ends or secondary side plate (4) Bottom edge both ends.

8. a kind of transformer according to claim 1, it is characterised in that: the transformer framework (1), which is equipped with, prevents strong magnetic Magnet ring (9), between the magnet ring (9) and transformer framework (1) be equipped with connection structure.

9. a kind of transformer according to claim 8, it is characterised in that: the connection structure includes being arranged in transformer bone Hole for injecting glue (12) on frame (1), it is glued between the transformer framework (1) and magnet ring (9).

10. a kind of transformer according to claim 1, it is characterised in that: the primary side side plate (3) and secondary side plate (4) It is extended to form bottom plate (11) along opposite direction, two flexible clamping pawls being provided symmetrically on the transformer framework (1) (15), two clamping pawls (15) pass through magnet ring (9) and abut with magnet ring (9) top sides edge.