CN212342401U - Bus transformer and electronic equipment - Google Patents

Abstract

The utility model provides a bus transformer and electronic equipment, bus transformer include the casing that has the storage tank and cover locate the upper cover on the opening of storage tank, upper cover and casing sealing connection, thereby make the storage tank form the confined space, the utility model discloses a bus transformer still includes the first magnetic ring of locating in the storage tank, the first winding of coiling on the first magnetic ring, locate in the storage tank and with the second magnetic ring of first magnetic ring interval setting, the second winding of coiling on the second magnetic ring, fix a plurality of pins on locating the casing and fill the casting glue in the storage tank, first winding and second winding respectively with corresponding pin electric connection; the pouring sealant is used for packaging the first magnetic ring, the first winding, the second magnetic ring and the second winding in the accommodating groove; compared with the prior art, the utility model discloses a bus transformer has higher seal strength and stronger anti salt fog ability, and the component in the storage tank is difficult to receive the erosion.

Description

Bus transformer and electronic equipment

Technical Field

The utility model belongs to the technical field of miniature transformer, more specifically say, relate to a bus transformer and electronic equipment.

Background

A Transformer (Transformer) is a device that changes an alternating-current voltage by using the principle of electromagnetic induction, and main components are a primary coil, a secondary coil, and an iron core (magnetic core). At present, as electronic devices are increasingly miniaturized, high-density surface-mounted small transformers are one direction of miniaturization development of electronic devices, and chip transformers are increasingly applied to various electronic devices. However, the sealing capability of the existing patch transformer is poor, so that the salt fog resistance of the patch transformer is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the utility model is to provide a bus transformer and electronic equipment to solve the technical problem that the sealing capacity and the anti salt fog ability of the paster transformer that exist among the prior art are low.

In order to achieve the above object, the utility model adopts the following technical scheme: providing a bus transformer, which comprises a shell with an accommodating groove, a first magnetic ring arranged in the accommodating groove, a first winding wound on the first magnetic ring, a second magnetic ring arranged in the accommodating groove and spaced from the first magnetic ring, a second winding wound on the second magnetic ring, a plurality of pins fixedly arranged on the shell, pouring sealant filled in the accommodating groove and an upper cover covering an opening of the accommodating groove; the first winding and the second winding are respectively and electrically connected with the corresponding pins; the pouring sealant is used for packaging the first magnetic ring, the first winding, the second magnetic ring and the second winding in the accommodating groove; the upper cover is connected with the shell in a sealing mode.

Further, the upper cover is seam-welded with the shell.

Further, the surfaces of the shell and the upper cover are plated with protective layers.

Furthermore, the protective layer is a nickel layer, and the thickness of the protective layer is 15-25 μm.

Furthermore, the bus transformer further comprises a first outgoing line and a second outgoing line, two ends of the first outgoing line are respectively and electrically connected to the first winding and the corresponding pins, and two ends of the second outgoing line are respectively and electrically connected to the second winding and the corresponding pins.

Furthermore, one end of the pin penetrates through the side wall of the shell and then extends into the accommodating groove, and the other end of the pin is exposed out of the shell; one end of the first outgoing line, which is far away from the first winding, is welded to the corresponding end of the pin, which extends into the accommodating groove, and one end of the second outgoing line, which is far away from the second winding, is welded to the corresponding end of the pin, which extends into the accommodating groove.

Furthermore, the pin is a glass sealing alloy part, and a nickel layer and a gold layer are sequentially electroplated outside the pin.

Further, the first winding and the second winding are both formed by winding enameled wires, and the first magnetic ring and the second magnetic ring are made of soft magnetic ferrite.

Furthermore, the pouring sealant is epoxy resin glue.

The utility model also provides an electronic equipment, include as above bus transformer.

The utility model provides a bus transformer's beneficial effect lies in: compared with the prior art, the utility model discloses an adopt the pouring sealant to encapsulate first magnetic ring, first winding, second magnetic ring and second winding in the storage tank of casing, then set up the upper cover at the opening part of storage tank to make upper cover and casing sealing connection, thereby make the storage tank form confined space, can effectively avoid the component in the storage tank to receive the erosion, improved bus transformer's seal strength and anti salt fog ability greatly.

The utility model provides an electronic equipment's beneficial effect lies in: compared with the prior art, the utility model provides an electronic equipment adopts above-mentioned bus transformer, and bus transformer has good seal strength and anti salt fog ability, can improve electronic equipment's reliability.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a schematic front view of a bus transformer according to an embodiment of the present invention;

fig. 2 is a schematic side view of a bus transformer according to an embodiment of the present invention;

fig. 3 is a schematic top view of a bus transformer according to an embodiment of the present invention;

fig. 4 is a schematic diagram of a cross-sectional structure of a bus transformer according to an embodiment of the present invention;

fig. 5 is a schematic longitudinal sectional structural view of a bus transformer according to an embodiment of the present invention;

fig. 6 is a schematic diagram of a bus transformer according to an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

100-an upper cover; 200-a housing; 210-a receiving groove; 310-a first magnetic ring; 320-a second magnetic ring; 410-a first winding; 420-a second winding; 500-pin; 600-pouring sealant; 710-a first outlet; 720-a second outlet; 1-a first primary input; 2-a second primary input; 3-a third primary input; 5-a fourth primary input; 6-fifth primary input; 7-a sixth primary input; 16-a first secondary output; 15-a second secondary output; 4-a third secondary output; 14-fourth secondary output; 13-fifth stage output; 12-sixth secondary output; 11-a seventh secondary output; 8-eighth secondary output; 10-ninth secondary output; 9-tenth secondary output.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1 to 3, an embodiment of the present invention provides a bus transformer, which includes a housing 200 and an upper cover 100, wherein a space for placing components is defined between the housing 200 and the upper cover 100, specifically, as shown in fig. 4 and 5, the housing 200 has a receiving groove 210, the upper cover 100 is covered on an opening of the receiving hole, and the upper cover 100 is hermetically connected to the housing 200, so that the receiving groove 210 forms a sealed space. A first magnetic ring 310, a first winding 410, a second magnetic ring 320, a second winding 420 and a plurality of pins 500 are arranged in the accommodating groove 210, wherein the first magnetic ring 310 and the second magnetic ring 320 are arranged at intervals, the first winding 410 is wound on the first magnetic ring 310, the second winding 420 is wound on the second magnetic ring 320, the plurality of pins 500 are fixed on the shell 200, and the first winding 410 and the second winding 420 are respectively electrically connected with the corresponding pins 500; in addition, the bus transformer further includes a potting adhesive 600 filled in the accommodating groove 210, and the potting adhesive 600 is used for encapsulating the first magnetic ring 310, the first winding 410, the second magnetic ring 320 and the second winding 420 in the accommodating groove 210. It can be understood that, according to actual conditions and specific requirements, more magnetic rings and corresponding windings may be disposed in the receiving groove 210, which is not limited herein.

Compared with the prior art, the utility model discloses an adopt pouring sealant 600 to encapsulate first magnetic ring 310, first winding 410, second magnetic ring 320 and second winding 420 in the storage tank 210 of casing 200, then set up upper cover 100 at the opening part of storage tank 210, and make upper cover 100 and casing 200 sealing connection, thereby make storage tank 210 form confined space, can effectively avoid the component in the storage tank 210 to receive the erosion, bus transformer's seal strength and anti salt fog ability have been improved greatly.

Further, as an embodiment of the present invention, if the connection strength between the upper cover 100 and the housing 200 is poor, the upper cover 100 is easily dropped from the housing 200 due to external factors (vibration, impact, etc.), and at this time, external moisture and corrosive liquid easily enter the inside of the bus transformer and corrode internal components, thereby reducing the service life of the bus transformer. Therefore, in order to prolong the service life of the bus transformer, the upper cover 100 and the housing 200 are seam welded, and particularly, the upper cover 100 and the housing 200 can be packaged in a parallel seam welding manner, so that the connection between the upper cover 100 and the housing 200 is more compact and stable. Of course, other connecting methods or processes may be used to fix the upper cover 100 and the housing 200 according to actual situations and specific needs, and are not limited herein.

Further, as a specific embodiment of the present invention, the traditional patch transformer is packaged by a plastic casing, the plastic casing is easy to degrade in the high temperature and high humidity environment, resulting in abnormal operation of the patch transformer, in order to avoid the above situation, the upper cover 100 and the housing 200 can be made of metal material (specifically, but not limited to, 10# steel), so as to avoid degradation of the upper cover 100 and the housing 200 in the high temperature and high humidity environment, and further prolong the service life of the bus transformer.

Further, as an embodiment of the present invention, a protective layer (not shown) may be electroplated on the surface of the casing 200 and the upper cover 100 to further protect the casing 200 and the upper cover 100, for example, a nickel layer may be electroplated on the surface of the casing 200 and the upper cover 100, and the thickness of the nickel layer is 15 μm to 25 μm, and with this structure, the nickel layer can play a role of protecting the casing 200 and the upper cover 100, and can facilitate the upper cover 100 and the casing 200 to be packaged by parallel seam welding. Of course, the protective layer may be made of other materials according to actual conditions and specific requirements, and is not limited herein.

Further, please refer to fig. 4 and 5, as an embodiment of the present invention, the bus transformer further includes a first outgoing line 710 and a second outgoing line 720, two ends of the first outgoing line 710 are electrically connected to the first winding 410 and the corresponding pin 500 respectively, and two ends of the second outgoing line 720 are electrically connected to the second winding 420 and the corresponding pin 500 respectively, so that the pin 500 serves as a power input end or a voltage output end of the first winding 410 and the second winding 420.

Further, referring to fig. 5, as a specific embodiment of the present invention, one end of the pin 500 passes through the sidewall of the housing 200 and then extends into the accommodating groove 210, and the other end is exposed outside the housing 200 so as to be welded on the mounting surface; one end of the first outgoing line 710, which is far away from the first winding 410, is welded to one end of the corresponding pin 500, which extends into the receiving slot 210, and one end of the second outgoing line 720, which is far away from the second winding 420, is welded to one end of the corresponding pin 500, which extends into the receiving slot 210. In this structure, the end of the first outgoing line 710 far from the first winding 410 and the end of the second outgoing line 720 far from the second winding 420 may be soldered to the corresponding pins 500 by solder wires, so as to ensure the reliability of the electrical connection between the first outgoing line 710 and the second outgoing line 720 and the corresponding pins 500.

Further, please refer to fig. 6, as an embodiment of the present invention, the first winding 410 includes a first primary coil (not shown) and a first secondary coil (not shown), wherein the first primary coil has a first primary input end 1, a second primary input end 2 and a third primary input end 3, and the first primary input end 1, the second primary input end 2 and the third primary input end 3 are respectively connected to one end of the corresponding first outgoing line 710 away from the pin 500; the first secondary coil has a first secondary output terminal 16, a second secondary output terminal 15, a third secondary output terminal 4, a fourth secondary output terminal 14, and a fifth secondary output terminal 13, and the first secondary output terminal 16, the second secondary output terminal 15, the third secondary output terminal 4, the fourth secondary output terminal 14, and the fifth secondary output terminal 13 are respectively connected to one end of the corresponding first outgoing line 710 far away from the pin 500.

Similarly, the second winding 420 includes a second primary coil (not shown) and a second secondary coil (not shown), wherein the second primary coil has a fourth primary input terminal 5, a fifth primary input terminal 6 and a sixth primary input terminal 7, and the fourth primary input terminal 5, the fifth primary input terminal 6 and the sixth primary input terminal 7 are respectively connected to the ends of the corresponding second outgoing lines 720 far from the pin 500; the second secondary coil has a sixth secondary output end 12, a seventh secondary output end 11, an eighth secondary output end 8, a ninth secondary output end 10, and a tenth secondary output end 9, and the sixth secondary output end 12, the seventh secondary output end 11, the eighth secondary output end 8, the ninth secondary output end 10, and the tenth secondary output end 9 are respectively connected to one end of the corresponding second outgoing line 720, which is far away from the pin 500.

By last, the utility model discloses bus transformer is integrated in a casing 200 with two sets of transformers, has reduced the product volume, makes the utility model discloses bus transformer reaches product wide band and integrated characteristic.

Further, as a specific embodiment of the present invention, the pin 500 may be a glass sealing alloy part, and the brand of the glass sealing alloy may be 4J50, so that the pin 500 has good welding performance, and is convenient for the pin 500 to be welded on the mounting surface. In this example, the glass sealing alloy with the designation 4J50 is specifically doped with elements such as carbon (C), manganese (Mn), silicon (Si), phosphorus (P), sulfur (S), aluminum (Al), cobalt (Co), nickel (Ni), and iron (Fe). In order to prevent the lead 500 from being corroded, a nickel layer and a gold layer may be sequentially plated outside the lead 500.

Further, as a specific embodiment of the utility model, first winding 410 and second winding 420 are formed by the enameled wire coiling, and first magnetic ring 310 and second magnetic ring 320 are soft magnetic ferrite finished piece, specifically can adopt but not limited to be manganese zinc material for the operating frequency of first magnetic ring 310 and second magnetic ring 320 is ≧ 1MHz, thereby can have better temperature coefficient under guaranteeing to have higher magnetic permeability, can work under higher and lower operating temperature, and the loss is low.

Further, as the utility model provides a bus transformer's a specific implementation way, epoxy glue can be chooseed for use to the casting glue 600, and epoxy glue has good shock resistance and shock resistance, can improve bus transformer's reliability. Of course, according to the actual situation and the specific requirement, in other embodiments of the present invention, the filling glue may also be a filling glue made of other materials, such as silicone filling glue or polyurethane filling glue, and is not limited herein.

The utility model discloses bus transformer has following beneficial effect at least:

(1) the utility model discloses according to bus transformer's sealing ability and anti salt fog ability, design, optimization and adjustment from aspects such as structure, material and technology, realize the application requirement of the sealing ability and the anti salt fog ability of balun transformer.

(2) The utility model discloses realize bus transformer anti-vibration, shock resistance, weldability ability requirement, strengthen bus transformer's reliability simultaneously, reach for military use requirement.

(3) The utility model realizes the wide frequency and integration characteristic of the bus transformer, expands the variety of the bus transformer, saves the assembly space and meets the military requirement; meanwhile, the test requirements of GJB1521A and GJB360B are met.

(4) The utility model discloses bus transformer can produce under the unchangeable circumstances of current production facility, and convenient operation easily realizes batch production.

The embodiment of the utility model provides an electronic equipment is still provided, include as above bus transformer. The utility model provides an electronic equipment's beneficial effect lies in: compared with the prior art, the utility model provides an electronic equipment adopts above-mentioned bus transformer, and bus transformer has good seal strength and anti salt fog ability, can improve electronic equipment's reliability.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. A bus transformer is characterized by comprising a shell with an accommodating groove, a first magnetic ring arranged in the accommodating groove, a first winding wound on the first magnetic ring, a second magnetic ring arranged in the accommodating groove and spaced from the first magnetic ring, a second winding wound on the second magnetic ring, a plurality of pins fixedly arranged on the shell, pouring sealant filled in the accommodating groove and an upper cover covering an opening of the accommodating groove; the first winding and the second winding are respectively and electrically connected with the corresponding pins; the pouring sealant is used for packaging the first magnetic ring, the first winding, the second magnetic ring and the second winding in the accommodating groove; the upper cover is connected with the shell in a sealing mode.

2. The bus transformer of claim 1, wherein the top cover is seam welded to the housing.

3. The bus transformer of claim 1, wherein surfaces of the housing and the top cover are plated with a protective layer.

4. The bus transformer of claim 3, wherein the protective layer is a nickel layer, the protective layer having a thickness of 15 μm to 25 μm.

5. The bus transformer of claim 1, further comprising a first outgoing line and a second outgoing line, wherein two ends of the first outgoing line are electrically connected to the first winding and the corresponding pins, respectively, and two ends of the second outgoing line are electrically connected to the second winding and the corresponding pins, respectively.

6. The bus transformer according to claim 5, wherein one end of the pin extends into the receiving groove after penetrating through the sidewall of the housing, and the other end of the pin is exposed outside the housing; one end of the first outgoing line, which is far away from the first winding, is welded to the corresponding end of the pin, which extends into the accommodating groove, and one end of the second outgoing line, which is far away from the second winding, is welded to the corresponding end of the pin, which extends into the accommodating groove.

7. The bus transformer of any one of claims 1 to 6, wherein the pins are made of glass-sealed alloy, and the pins are plated with a nickel layer and a gold layer in sequence.

8. The bus transformer according to any one of claims 1 to 6, wherein the first winding and the second winding are wound by enameled wires, and the first magnetic ring and the second magnetic ring are made of soft magnetic ferrite.

9. The bus transformer of any of claims 1 to 6, wherein the potting adhesive is an epoxy adhesive.

10. An electronic device, comprising a bus transformer according to any one of claims 1 to 9.

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