TWM615998U - Frame of network transformer and network transformer - Google Patents

Abstract

This creation is a frame of a network transformer and a network transformer. The frame of the network transformer is provided with a substrate, and the substrate is provided with a hollow part. The hollow part provides the first coil winding and the second coil winding of the network transformer. Two corresponding side surfaces of the substrate are respectively provided with a lead connection part, each lead connection part is provided with a plurality of lead connection units, each lead connection unit is extended to the position of the top surface and the bottom surface of the substrate close to the hollow part, and the surface of each lead connection unit is provided There is a conductive metal layer, the top surface of each lead connection unit provides a wire extending from each coil winding, and the bottom surface of each lead connection unit provides a circuit board connected to the network equipment.

Description

Frame of network transformer and network transformer

This creation is about transformers, especially the framework and network transformers used in network communication systems.

The structure of the traditional network transformer includes a shell and pins. The production process is roughly as follows: the pins are injected into the forming mold, and then the shell is formed in the mold and covers a part of the pins to form a lead One part of the foot is in the accommodating groove of the housing, and the other part is outside the accommodating groove of the housing to complete the injection molding step.

However, the above-mentioned injection molding production method has many problems that need to be improved. Therefore, some manufacturers have made improvements to related problems. For example, the Chinese Utility Model Patent Announcement No. CN206312698U (hereinafter referred to as the previous case 1), this utility model relates to a network Transformer housings and network transformers belong to the technical field of network transformers. The network transformer housing includes a housing body made of a thermosetting flame-retardant material. The housing body is in the shape of a box cover. The side wall of the housing is provided with a PIN pin (equivalent to the aforementioned pin) mounting blind hole on the end surface of the opening, and also includes a conductive PIN pin. One end of the PIN pin is inserted into the PIN pin mounting hole. It is an interference fit with the PIN pin mounting hole. By inserting one end of the PIN pin into the PIN pin mounting hole, the entire manufacturing process of the network transformer housing can be completed with only the steps of injection molding and insertion, and the subsequent welding process of the magnetic core can be automated. Implementation reduces the production process, simplifies the production process, and greatly improves the production efficiency.

However, the first case only slightly changed the injection molding steps, and did not improve the subsequent installation of the coil winding and welding process. In fact, the subsequent installation of the coil winding and the welding process is still quite cumbersome and complicated.

For example, after the traditional network transformer has completed the injection molding steps, it still needs to be carried out as described in Patent Publication No. WO2019/205763, the invention name "Network Transformer Production Process and Network Transformer" (hereinafter referred to as the second case) The production steps include (a) hanging the wire; (b) tinning the inner pins of the double row; (c) cutting the wire; (d) cleaning and baking; (e) inspection and repair of semi-finished products; (f) finished product preparation; g) Finished product testing; (h) Product preparation and other steps. The detailed content of each step is described in the specific implementation of the previous case 2. The process is complicated and the efficiency is not good.

To sum up, in the traditional production process of network transformer, the shell and pins are made by injection molding, which means that the cost of making the mold is required. Moreover, the pins must be placed in the mold before injection molding. Forming steps, while the previous case 1 reduces the need to place pins in the mold, but the mold of the previous case 1 must leave a mounting hole, and the PIN foot and the PIN foot mounting hole are interference fits. When making the mold Attention should be paid to the precision of the PIN mounting hole, otherwise the PIN may not be an interference fit with the PIN mounting hole. In addition, it can be seen from the second case that the traditional installation of coil windings and welding procedures are not only complicated and cumbersome, but also during the process of tinning the pins, the shell and the pins are brought into the reflow furnace for welding. Poor welding is prone to occur. Therefore, it is necessary to improve the above-mentioned problems.

In view of the problems of the prior art, the purpose of this creation is to provide a network transformer with a completely new structure, so that the network transformer does not need to be manufactured with a mold, nor does it need to enter the reflow furnace for welding and other production steps.

According to the purpose of this creation, a network transformer frame is provided, which is provided with a substrate, and the substrate is provided with a hollow part. The hollow part provides the first coil winding and the second coil winding of the network transformer. The two substrates correspond to each other. A lead connection part is respectively provided on the side surface, and each lead connection part is provided with a plurality of lead connection units. Each lead connection unit extends to the position of the top and bottom surfaces of the substrate close to the hollow part, and the surface of each lead connection unit is provided with a conductive metal layer , The top surface of each lead connection unit provides a wire extending from each coil winding, and the bottom surface of each lead connection unit provides a circuit board connected to the network equipment.

Wherein, each lead connection part further includes a plurality of separation units, and each separation unit is respectively arranged at a position between any two adjacent lead connection units to separate the lead connection units and avoid short circuit between the lead connection units.

Among them, the substrate, the lead connection part and the separation unit are cut and formed by the circuit board.

Wherein, the bottom surface of each lead connection unit slightly protrudes from the outer surface of the substrate, so as to provide a circuit board connected to the network device.

Wherein, the surface of the substrate is provided with a connecting portion, and the connecting portion provides a housing for connection.

Wherein, the connecting portion is at least one through hole.

According to the purpose of this creation, a network transformer is provided, which includes a substrate, a first coil winding, a second coil winding, and a housing. The structure of the substrate is as described above. The first coil winding includes a plurality of first iron cores and a plurality of A first wire, the second coil winding includes a plurality of second iron cores and a plurality of second wires, wherein the first wire and the second wire are respectively connected to one of the lead connection parts, and the housing is arranged on the top surface of the substrate, It is used to cover the top surface of the substrate, the first coil winding and the second coil winding.

According to the above, this creation does not require a mold to make the shell and connect the PIN pin, and this creation can set the substrate, the first coil winding and the second coil winding in the fixture, so that each first wire is aligned with the second wire The lead connection part to be connected is then spot welded to the first wire and the second wire respectively using a spot welding machine to complete the first coil winding and the second coil winding on the substrate, and then cover the shell The top surface of the substrate and the completed network transformer. In this way, the network transformer of this creation does not require a mold to make the shell, nor does it need to insert the PIN into the shell, or put the PIN into the mold for injection molding. Enter the reflow furnace for welding and other production steps, which solves the problems of traditional network transformers.

1: substrate

10: Hollow part

12: Lead connection part

120: Lead connection unit

1200: conductive metal layer

122: Separating unit

14: Connection part

2: The first coil winding

20: The first wire

22: The first core

3: The second coil winding

30: second wire

32: second core

4: shell

40: Another connection part

5: The first fixture

50: Groove

52: gap

6: The second fixture

60: accommodating slot

7: Spot welding machine

Figure 1 is a schematic diagram of the substrate of the creative network transformer.

Figure 2 is a schematic diagram of the appearance of the creative network transformer.

Figure 3 is a three-dimensional exploded view of one of the creative network transformers.

Figure 4 is a schematic diagram of the first jig used in this creation for making network transformers.

Figure 5 is a schematic diagram of the second jig used in this creation for making network transformers.

Figure 6 is an exploded schematic diagram of the first jig and the second jig of this creation.

Figure 7 is a schematic diagram of spot welding from the first jig and the second jig created by this invention.

Fig. 8 is a schematic diagram of the present invention removing the first jig to observe the spot welding position of the second jig.

Figure 9 is a schematic diagram of the removal of the first jig from the second jig of this creation.

Fig. 10 is a schematic diagram of the second jig in Fig. 9 after the first jig is removed.

Figure 11 is a schematic diagram of the combination of the creative substrate, the first coil winding and the second coil winding.

Figure 12 is another three-dimensional exploded view of this creation.

In order to make the purpose, technical solutions, and advantages of this creation clearer, the creation will be described in further detail below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the creation, but not used to limit the creation.

This creation is a framework of a network transformer. Please refer to Figures 1~3. It is provided with a base plate 1. The base plate 1 is provided with a hollow section 10, and the hollow section 10 is provided with the first coil winding 2 and the network transformer. For the second coil winding 3, two corresponding side surfaces of the substrate 1 are respectively provided with a lead connection part 12, each lead connection part 12 is provided with a plurality of lead connection units 120, and each lead connection unit 120 extends to the top and bottom surfaces of the substrate 1 Close to the hollow portion 10, the surface of each lead connection unit 120 is provided with a conductive metal layer 1200, and the top surface of each lead connection unit 120 is provided for connecting the first wire 20 and the second coil winding 3 of the first coil winding 2 The second wire 30, and the bottom surface of each lead connection unit 120 provides a circuit board connected to the network equipment.

Since the lead connection units 120 must be separated by a certain distance in order to avoid short circuit or other electrical interference problems, therefore, in this creation, each lead connection part 12 still includes a plurality of separation units 122, and each separation unit 122 is respectively arranged in any two. The positions between adjacent lead connection units 120 are used to separate the lead connection units 120 to avoid short circuits between the lead connection units 120.

In addition, the bottom surface of each lead connection unit 120 needs to be connected to the circuit board of the network device in the subsequent manufacturing process. In order to facilitate the bottom surface of each lead connection unit 120 to contact the circuit board of the network device, in this creation, each lead is connected The bottom surface of the unit 120 slightly protrudes from the outer surface of the substrate 1 so as to provide a circuit board connected to the network equipment.

Furthermore, after the substrate 1 is connected to the first coil winding 2 and the second coil winding 3, the housing needs to be mounted on the top surface of the substrate 1 to shield the top surface of the substrate 1, the first coil winding 2 and the second coil winding 3. Therefore, in this creation, a connecting portion 14 is provided on the surface of the base plate 1, and the connecting portion provides a housing 4 for connection. In an embodiment of the present invention, the connecting portion 14 is at least one through hole.

In this creation, the substrate 1, the lead connection portion 12, or the separation unit 122 is made by cutting the circuit board with a laser cutting machine. In addition, since the substrate 1 is made of a circuit board, the conductive metal of this creation The layer 1200 can be fabricated on the surface of each lead connection unit 120 in the same way as an electroplating method of arranging a circuit on a circuit board. In this way, this creation does not need to use a mold to make a shell for connecting the PIN pin, so there is no question of whether the PIN pin is placed correctly or whether the PIN pin needs to be bent.

Please refer to Figures 1 to 3 again. This creation of a network transformer includes a substrate 1, a first coil winding 2, a second coil winding 3, and a housing 4. The structure of the substrate 1 is as described above, and the first coil winding 2. The second coil winding 3 is arranged in the hollow portion 10, and the first coil winding 2 includes a plurality of first iron cores 22, and each first iron core 22 is respectively wound with a plurality of first wires 20, and a second coil winding 3 includes a plurality of second iron cores 32, each of the second iron cores 32 diffracts a plurality of second wires 30, wherein the first wire 20 and the second wire 30 are respectively connected to the top surface of one of the lead connecting parts 12, The bottom of the housing 4 is provided with another connecting portion 40 at a position relative to the connecting portion. The other connecting portion is connected to the connecting portion 14 so that the housing 4 covers the top surface of the substrate 1 to cover the top of the substrate 1.面, the first coil winding 2 and the second coil winding 3.

In order to explain the combined production method of the substrate 1, the first coil winding 2, the second coil winding 3 and the housing 4 of this creation, the following provides an explanation of the production process of one of the creations. Please refer to Figure 4, the first coil winding 2 and the second coil winding 3 are placed in the groove 50 provided in the center of the first jig 5, and each first wire 20 of the first coil winding 2 and each second wire 30 of the second coil winding 3 are respectively Extending to the notches 52 provided on both sides of the first fixture 5, the first fixture 5 lies in the first coil winding 2 and the second coil winding of the groove 50 The group 3 is stuffed with rubber, so that the first coil winding 2 and the second coil winding 3 are fixed in the groove 50 so as to fall, but the actual production is not limited to this. For example, the first coil winding 2 and the second coil winding can be 3 The fixing part will fall, and each first wire 20 and each second wire 30 can be fixed at the position of each notch 52, please refer to FIG. 5, the substrate 1 is placed on the second jig 6 In the accommodating slot 60, the first jig 5 and the second jig 6 are stacked together so that the first coil winding 2 and the second coil winding 3 face the substrate 1, and each first wire 20 and each The second wire 30 can correspond to each lead connection unit 120 (as shown in Figs. 6-7), and then, referring to Figs. 7 and 8, the spot welding machine 7 is used to extend into the hollow provided by the first jig 5 In the groove, the lead connection unit 120 of the substrate 1 mounted on the second jig 6 can be spot-welded with each first wire 20 and each second wire 30. FIG. 8 shows the first treatment in FIG. 7 The removal of tool 5 is to show that the spot welding machine 7 can weld the substrate 1 in the second jig 6 with each first wire 20 and each second wire 30. A jig 5 is removed, and the redundant first wires 20 and the second wires 30 are removed through the cutting workstation, and the first wires 20 and the second wires of the first coil winding 2 and the second coil winding 3 can be seen 30 has been connected to the substrate 1, so that the first coil winding 2 and the second coil winding 3 can remain on the substrate 1 in the second jig 6. Please refer to Figure 11 to remove the substrate 1 from the second jig 6. Then, the assembly of the substrate 1, the first coil winding 2, and the second coil winding 3 is completed, and then the housing 4 is mounted on the substrate 1 (as shown in Figure 2) to cover the top surface of the substrate 1. , And let the first coil winding 2 and the second coil winding 3 be completely covered by the housing 4.

In addition, this creation is not limited to the production of the first coil winding 2 and the second coil winding 3 of the substrate 1 as shown in Figure 11. Please refer to Figure 12. When this creation is actually implemented, substrates 1 of different sizes can be produced. In addition, different numbers of lead connection parts 12 can be arranged on the substrate 1, so that this creation can be applied to the needs of various network transformers. Figure 12 omits the wires around each coil winding.

According to the above, this creation does not require a mold to make the shell and connect the PIN pin, and this creation can set the substrate 1, the first coil winding 2 and the second coil in the fixture, so that the first wire 20 and the second wire The wire 30 is aligned with the lead connecting portion 12 to be connected, and then the first wire 20 and the second wire 30 are spot-welded by the spot welding machine 7 respectively, and then the first coil winding 2 and the second coil winding are set on the substrate 1. Afterwards, cover the shell 4 on the top surface of the substrate 1, and complete the network transformer. In this way, the network transformer of this creation does not need to be made of a mold, and there is no need to insert a PIN into the shell or insert the PIN. Put it into the mold for injection molding, and there is no need to enter the reflow furnace for welding and other production steps, which solves the problem of traditional network transformers.

The implementation mode is a specific description of the feasible embodiments of this creation. However, the foregoing embodiments are not used to limit the scope of the creation of the patent. Any equivalent implementation or modification that does not deviate from the spirit of the creation technique should be included in this case. In the scope of the patent.

1: substrate

14: Connection part

2: The first coil winding

20: The first wire

22: The first core

3: The second coil winding

30: second wire

32: second core

4: shell

40: Another connection part

Claims (10)

A frame of a network transformer is provided with a substrate, and a hollow part is provided in the substrate. The hollow part is provided with a first coil winding and a second coil winding. Two corresponding sides of the substrate are respectively provided with a lead connection Each of the lead connection parts is provided with a plurality of lead connection units, and each of the lead connection units extends to a position where the top and bottom surfaces of the substrate are close to the hollow part, and each lead connection unit is provided with a conductive metal layer on the surface, each The top surface of the lead connection unit provides a first wire connected to the first coil winding and a second wire provided in the second coil winding, and the bottom surface of each lead connection unit provides connection to a network The circuit board of the device. The frame of the network transformer according to claim 1, wherein the substrate and the lead connection part are formed by cutting a circuit board. The frame of the network transformer according to claim 1, wherein each of the lead connection parts further includes a plurality of separation units, and each of the separation units is respectively arranged at a position between any two adjacent lead connection units to separate the lead connection units. Lead connection unit. The frame of the network transformer according to claim 1, wherein the bottom surface of each lead connection unit slightly protrudes from the outer surface of the substrate. The frame of the network transformer according to claim 1, wherein a connecting portion is provided on the surface of the substrate, and the connecting portion is provided with a housing for connection. The frame of the network transformer according to claim 5, wherein the connecting portion is at least one through hole. A network transformer includes: a substrate in which a hollow part is arranged, two corresponding sides of the substrate are respectively provided with a lead connection part, each of the lead connection parts is provided with a plurality of lead connection units, each of the lead connection units Department extension When the top and bottom surfaces of the substrate are close to the hollow portion, a conductive metal layer is provided on the surface of each lead connection unit; a first coil winding is arranged in the hollow portion and includes a plurality of first iron cores, each The first iron core respectively diffracts at least one first wire; a second coil winding is arranged in the hollow portion and includes a plurality of second iron cores, each of the second iron cores diffracts at least one second wire respectively And a housing; wherein each first wire and each second wire are respectively connected to one of the top surface of the lead connection portion, the casing is provided on the top surface of the substrate to cover the top of the substrate Surface, the first coil winding and the second coil winding. The network transformer according to claim 7, wherein the substrate and the lead connection part are formed by cutting a circuit board. The network transformer according to claim 7, wherein each of the lead connection parts further includes a plurality of separation units, and each of the separation units is respectively arranged at a position between any two adjacent lead connection units to separate the lead connection unit. The network transformer according to claim 7, wherein the bottom surface of each lead connection unit slightly protrudes from the outer surface of the substrate.

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