Novel flat transformer base and transformer with same

Abstract

The utility model discloses a novel flat transformer base and transformer with it relates to transformer technical field, solves the problem of the lower assembling efficiency of transformer because of the inconvenience of assembling between the outgoing pin of coil in the existing transformer and bottom plate. It includes base body, the middle area of base body upper surface forms the support plane for the stacking flat insulation copper coil and insulation wire coil, the side of base body for flat insulation copper coil wire outlet is provided with a plurality of connection column with the conductivity, the connection column is used for and the wire insertion connection of flat insulation copper coil wire outlet, the side of base body for insulation wire coil wire outlet is provided with a plurality of PIN needle, and the PIN needle is used for and insulation wire coil wire outlet is connected. By the outgoing pin of flat insulation copper coil is directly stacked on the connection column of base, and the outgoing pin of the other side insulation wire coil is wound on PIN needle, and it is not necessary to bend and jack wire outlet again, and the efficiency and quality are improved by dispensing with the dispensing and bending time.

Description

Technical Field

[0001] This utility model relates to the field of transformer technology, and in particular to a novel flat-plate transformer base and a transformer having the same. Background Technology

[0002] Small transformers, a type of transformer in related technologies, are widely used due to their advantages such as material saving and good stability. A small transformer generally includes a core, coils, and a base plate. The coils include flat insulated copper coils and insulated wire coils. See also... Figure 1 The base plate is a flat plate structure. Flat insulated copper coils and insulated wire coils are stacked on the base plate, and the iron core is fixed to the base plate. The central post in the middle of the iron core passes through the through hole between the flat insulated copper coils and the insulated wire coils. The leads of the flat insulated copper coils protrude from one side. The operator needs to manually bend at least four leads of the flat wire downwards at 90° in sequence, and then insert them into the rectangular holes at the corresponding positions on the base plate. The leads of the insulated wire coils protrude from one side, and then the leads are inserted into the corresponding round holes on the base plate and fixed with glue.

[0003] The above design has the following problems: 1. Bending the flat wire requires different molds and fixtures to bend the leads of the flat wire; 2. Since some rectangular holes need to accommodate two or more leads, the leads of different flat insulated copper coils need to be stacked and inserted into the rectangular holes. However, the copper wire of the flat insulated copper coil has a certain thickness, which causes the lead position to change with each layer, making it difficult to accurately determine the holes on the base plate; 3. Inserting the leads of the insulated wire coil into the round holes on the base plate can easily cause packaging deformation during transportation due to the thinness of the wire; 4. The overall size of the base plate is large, which will occupy the overall space of the power supply. Utility Model Content

[0004] The purpose of this utility model is to solve the above-mentioned problems by designing a new type of flat plate transformer base and a transformer having the same, which solves the problem that the assembly efficiency of the transformer is low due to the inconvenience of assembling the coil leads with the base plate in the existing transformer.

[0005] To achieve the above objectives, the technical solution of this utility model is a novel flat-plate transformer base, comprising a base body. A supporting plane is formed in the middle region of the upper surface of the base body, containing an iron core and related coil windings, including flat insulated copper coils and insulated wire coils, stacked and confined within the iron core. Multiple conductive connecting posts are provided on one side of the base body for the flat insulated copper coil outlet, and these connecting posts are used for interlocking with the outlet wires of the flat insulated copper coil. Multiple pins are provided on one side of the base body for the insulated wire coil outlet, and these pins are used for connecting with the outlet wires of the insulated wire coil.

[0006] Preferably, the middle area of ​​the base body is recessed downward to form the support plane, and the shape of the support plane is adapted to the shape of the flat insulated copper wire and the coil.

[0007] Preferably, the PIN pin is vertically fixed to the bottom of the base body.

[0008] Preferably, the base body has a plurality of first insertion holes on one side for the flat insulated copper coil outlet, the first insertion holes corresponding one-to-one with the connecting post, and the connecting post is inserted into the first insertion hole with an interference fit.

[0009] Preferably, the first socket is through-hole, and the lower end of the connecting post passes through the first socket.

[0010] Preferably, the base body has a plurality of second sockets on the side for the output of the insulated wire coil, and the second sockets correspond one-to-one with the PIN pins, and the PIN pins are inserted into the second sockets.

[0011] Preferably, the second socket is a blind socket and is located at the bottom of the base body.

[0012] This utility model also provides a transformer, including the novel flat-plate transformer base as described above, and further comprising: Flat insulated copper coil and insulated wire coil, wherein the lead of the flat insulated copper coil has a socket for insertion with a connecting post; The iron core has a groove at its bottom that is adapted to the shape of the flat insulated copper coil and the insulated wire coil. A central post is provided in the middle area of ​​the groove, which is used to position the stacked flat insulated copper coil and the insulated wire coil. The iron core is embedded in the base body, and a receiving cavity for stacking flat insulated copper coils and insulated wire coils is formed between the base body and the iron core.

[0013] Preferably, the distance between the lower end face of the central column and the supporting plane does not exceed the thickness of the flat insulated copper coil or insulated wire coil.

[0014] Its advantages over existing technologies are: In this invention, connecting posts and pins are provided on both sides of the base. The leads of the flat insulated copper wire are inserted into the connecting posts and then soldered to ensure that the leads of the flat wire are aligned. This eliminates the need for molds or fixtures to bend the leads of the flat insulated copper wire, saving on multiple sets of molds. The leads of the insulated wire coil are bound to and soldered to the pins, making them less prone to deformation.

[0015] During transformer assembly, the flat insulated copper coil and the insulated wire coil are first stacked together and then placed into the iron core. The central column of the iron core is positioned by passing through the through hole between the flat insulated copper wire and the insulated wire coil. Then, the iron core and the assembled materials are placed into the groove on the base. The leads of the flat insulated copper wire and the insulated wire coil are led out to the side where the connecting post and the PIN pin are located, respectively. Square insertion holes are made on the leads of the flat insulated copper wire to allow them to be inserted into the connecting post. The leads of the insulated wire coil are bound and soldered to the PIN pin downwards. The leads of the insulated wire coil are not easily deformed.

[0016] This design also makes assembling the base easier than before. By directly stacking the lead of the flat insulated copper coil on the connecting post of the base, and wrapping the lead of the insulated coil on the other side around the PIN pin, there is no need to bend and plug the wire out again, saving glue application and bending time and improving efficiency and quality. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the base plate in a transformer in the prior art; Figure 2 This is a schematic diagram of the overall structure of the transformer; Figure 3 This is a structural schematic diagram of a transformer from another perspective; Figure 4 This is a structural diagram of the base; Figure 5 This is a structural diagram of the base from another perspective; Figure 6 This is a schematic diagram of the installation structure of the iron core and coil.

[0018] In the figure, 1 is the base body; 11 is the first fixing part; 111 is the connecting post; 110 is the first socket; 12 is the second fixing part; 121 is the PIN pin; 120 is the second socket; 101 is the supporting plane; 2 is the iron core; 201 is the central post; 3 is the flat insulated copper coil; 4 is the insulated wire coil. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0020] A preferred embodiment of this utility model proposes a novel flat-plate transformer base, which solves the problems of thick flat insulated copper wire leads that are not conducive to bending and the insulated wire coil 4 being easy to bend and break when directly inserted into the lead, resulting in poor efficiency during long-term operation.

[0021] For details, see Figures 2-5 The base body 1 of the transformer base has two sides for the lead-out pins of the flat insulated copper coil 3 and the insulated wire coil 4, respectively. A positioning groove is formed by a downward indentation in the middle area of ​​the transformer body. The bottom surface of the positioning groove forms a support plane 101 for placing the stacked flat insulated copper coil 3 and the insulated wire coil 4. The flat insulated copper coil 3 and the insulated wire coil 4 are stacked together in sequence, and the stacking order and quantity are not fixed.

[0022] See Figure 4 , Figure 5 On the base body 1, a first fixing part 11 is formed by protruding outward on one side corresponding to the lead-out foot of the flat insulated copper coil 3. In this embodiment, the first fixing part 11 has three rectangular first insertion holes 110, and a connecting post 111 is inserted into each insertion hole. The connecting post 111 is made of copper to facilitate conductivity. The connecting post 111 can also be made of other conductive metal materials.

[0023] Since the first socket 110 is through at both ends, the lower end of the connecting post 111 will protrude downwards through the first socket 110 to connect with external wires. The connecting post 111 and the first socket 110 are interference fit.

[0024] A second fixing part 12 is formed on the base body 1, protruding outward from one side corresponding to the lead-out foot of the insulated wire coil 4. In this embodiment, a plurality of second insertion holes 120 are provided on the second fixing part 12, and the second insertion holes 120 are circular blind holes. The second insertion holes 120 are located at the bottom of the second fixing part 12. A PIN pin 121 is inserted into each second insertion hole 120. The PIN pin 121 is fixed vertically.

[0025] The PIN pin 121 and the second socket 120 can be interference-fitted, or the PIN pin 121 can be injection molded onto the base body 1 during injection molding.

[0026] Multiple grooves are formed on the upper surface of the second fixing part 12 to limit the lead of the insulated coil 4. Multiple clearance grooves are provided on the front end face of the second fixing part 12 so that the lead of the insulated coil 4 can pass through the clearance grooves and connect downwards to the corresponding PIN pin 121. The lead of the insulated coil 4 is bound together with the PIN pin 121 and then soldered to fix it.

[0027] The base body 1 has an overall shape similar to an oval, and its overall size is smaller than that of the base plate in the prior art, saving space occupied by the transformer.

[0028] See Figure 1 , Figure 2Another embodiment provides a transformer, which mainly includes the aforementioned base, iron core 2, flat insulated copper coil 3, and insulated wire coil 4. The number of flat insulated copper coil 3 and insulated wire coil 4 is variable, but generally not less than two. The insulated wire coil 4 is made of insulated copper wire.

[0029] See Figure 6 The bottom of the iron core 2 has a groove, and the middle of the groove protrudes downward to form a cylinder, namely the central column 201. The sides of the corresponding flat insulated copper coil 3 lead and insulated coil 4 lead of the groove are open so that the lead can pass through, so that the shape of the iron core 2 is an inverted "mountain" shape.

[0030] The cross-sectional shape of the iron core 2 is adapted to the shape of the positioning groove on the base body 1 so that the iron core 2 can be embedded into the positioning groove, thereby forming a receiving cavity between the iron core 2 and the base body 1 for placing the flat insulated copper coil 3 and the insulated wire coil 4. The iron core 2 can be fixed to the base body 1 by means of a snap-fit, or it can be fixed by means of an interference fit with the positioning groove.

[0031] After the flat insulated copper coil 3 and the insulated wire coil 4 are stacked together, the central post 201 at the bottom of the iron core 2 will pass downward through the through hole between the flat insulated copper coil 3 and the insulated wire coil 4. The groove at the bottom of the iron core 2 will limit the flat insulated copper coil 3 and the insulated wire coil 4, and the central post 201 will position the flat insulated copper coil 3 and the insulated wire coil 4. Then, the iron core 2, the flat insulated copper wire, the alpha coil, and related windings are placed into the positioning slot on the base.

[0032] The lower end face of the central column 201 can contact the bottom surface of the positioning groove on the base body 1 (i.e., the support plane 101), or it can make contact with it. If the two do not make contact, the distance between the lower end face of the central column 201 and the support plane 101 must be less than the thickness of the flat insulated copper coil 3 or the thickness of the insulated wire coil 4, to prevent the flat insulated copper coil 3 or the insulated wire coil 4 from falling out.

[0033] The leads of the flat insulated copper coil 3 extend to the side where the connecting post 111 is located, and then the insertion holes on the leads are plugged into the corresponding connecting post 111, and then soldered together. The leads of different flat insulated copper coils 3 can be plugged into the same connecting post 111, but two or more leads need to be stacked together.

[0034] The lead of the insulated coil 4 extends to the side where the PIN pin 121 is located, and then the lead passes downward through the clearance groove at the front end of the second fixing part 12, is bound to the PIN pin 121 and fixed with solder.

[0035] By directly stacking the lead of the flat insulated copper coil 3 onto the connecting post 111 of the base, and wrapping the lead of the insulated coil 4 on the PIN pin 121, there is no need to bend and insert the wire again, saving glue application and bending time and improving efficiency and quality.

[0036] The above technical solution only embodies the preferred technical solution of this utility model. Any changes that may be made by those skilled in the art to certain parts of it embody the principle of this utility model and fall within the protection scope of this utility model.

Claims

1. A novel flat-plate transformer base, characterized in that, The base body (1) includes a base body (1). The middle area of ​​the upper surface of the base body (1) forms a support plane (101) for placing an iron core (2) and related coil windings, including a flat insulated copper coil (3) and an insulated wire coil (4), which are stacked and confined within the iron core. The base body (1) has a plurality of conductive connecting posts (111) on the side for the flat insulated copper coil (3) to exit. The connecting posts (111) are used to insert and connect with the exit of the flat insulated copper coil (3). The base body (1) has a plurality of pins (121) on the side for the exit of the insulated wire coil (4). The pins (121) are used to connect with the exit of the insulated wire coil (4).

2. The novel flat-plate transformer base according to claim 1, characterized in that, The middle area of ​​the base body (1) is recessed downward to form the support plane (101), and the shape of the support plane (101) is adapted to the shape of the flat insulated copper wire and the coil.

3. The novel flat-plate transformer base according to claim 1, characterized in that, The PIN pin (121) is vertically fixed to the bottom of the base body (1).

4. The novel flat-plate transformer base according to claim 1, characterized in that, The base body (1) has a plurality of first sockets (110) on one side for the flat insulated copper coil (3) to be output. The first sockets (110) correspond one-to-one with the connecting post (111). The connecting post (111) is inserted into the first socket (110) and is interference-fitted.

5. The novel flat-plate transformer base according to claim 4, characterized in that, The first socket (110) is through from top to bottom, and the lower end of the connecting post (111) passes through the first socket (110).

6. The novel flat-plate transformer base according to claim 1, characterized in that, The base body (1) has multiple second sockets (120) on one side for the output of the insulated wire coil (4). The second sockets (120) correspond one-to-one with the PIN pins (121), and the PIN pins (121) are inserted into the second sockets (120).

7. The novel flat-plate transformer base according to claim 6, characterized in that, The second socket (120) is a blind hole and is located at the bottom of the base body (1).

8. A transformer, characterized in that, The novel flat-plate transformer base as described in any one of claims 1-7 further includes: Flat insulated copper coil (3) and insulated wire coil (4), wherein the lead of the flat insulated copper coil (3) has a socket for insertion into a connecting post (111); The iron core (2) has a groove at the bottom that is adapted to the shape of the flat insulated copper coil (3) and the insulated wire coil (4). A central column (201) is provided in the middle area of ​​the groove. The central column (201) is used to position the stacked flat insulated copper coil (3) and the insulated wire coil (4). The iron core (2) is embedded in the base body (1), and a receiving cavity for stacking flat insulated copper coil (3) and insulated wire coil (4) is formed between the base body (1) and the iron core (2).

9. The transformer according to claim 8, characterized in that, The distance between the lower end face of the central column (201) and the supporting plane (101) shall not exceed the thickness of the flat insulated copper coil (3) or the insulated wire coil (4).

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