CN201112117Y

CN201112117Y - Electrical inductance amperite

Info

Publication number: CN201112117Y
Application number: CNU2007200750427U
Authority: CN
Inventors: 姜宝琪
Original assignee: Shanghai Yaming Lighting Co Ltd
Current assignee: Shanghai Yaming Lighting Co Ltd
Priority date: 2007-09-26
Filing date: 2007-09-26
Publication date: 2008-09-10
Anticipated expiration: 2017-09-26

Abstract

The utility model discloses an inductance ballast which comprises two coils and an iron core. The two coils respectively wind around the two sides of the iron core and are connected in parallel. The proposal of manufacturing the inductance ballast with two coils connected in parallel adopted by the utility model is characterized in that the two coils can share the current, therefore, comparatively small line diameter can withstand comparatively large current, and no intermediate joint is needed in the proposal, thus preventing the damage caused by the large current withstood by the contact resistance of the intermediate joint; furthermore, the two coils can be winded by aluminum enameled wires, therefore, the cost is greatly reduced.

Description

Inductive ballast

Technical field

The utility model relates to a kind of Inductive ballast.

Background technology

Because more powerful dysprosium lamp is bigger with the ballast electric current, so the employed enamelled wire line of coiling ballast footpath is thicker.In recent years, because various factors causes copper valency both domestic and external, the particularly price of copper enamelled wire to rise steadily, the rise of this copper valency directly has influence on the manufacturing cost of Inductive ballast, makes the manufacturing cost of Inductive ballast constantly rise.In order to reduce the influence that the rise in price of copper enamelled wire is produced and sold ballast, use the copper enamelled wire of ballast instead aluminium enamel-covered wire, be a kind of solution that reduces the ballast cost of manufacture, for the Inductive ballast of more high-power (more than the 1000W), economy is better.Yet the resistivity of aluminium enamel-covered wire is greater than copper cash, and in order to make the temperature rise of aluminum steel ballast can reach the index of original copper cash ballast, the diameter of aluminum enamelled wire should be greater than copper cash, about 1.13 times, has so just further strengthened the line footpath of enamelled wire.

Thicker circular enamelled wire (especially in corner) when coiling makes that easily enamelled coating is injured, can reduce the turn-to-turn insulation of coil.Therefore in order to reduce the line footpath, traditional coil when coiling, be with two-wire and around two coils of mode coiling, then two coils are together in series.But the joint between these two coils is difficult to bear big electric current (tens peaces), and like this, the tie point of big electric current is easy to cause ballast to break down.

The utility model content

The technical problems to be solved in the utility model provides a kind of Inductive ballast that can adopt thinner enamelled wire coiling, and it can bear bigger electric current and be difficult for being damaged.

In order to solve the problems of the technologies described above, the utility model adopts following technical scheme: a kind of Inductive ballast, comprise coil and iron core, and described coil has two, is wrapped in the both sides of described iron core respectively, and is connected in parallel between two coils.

The utility model adopts the mode of two coils from parallel connection of coils to make Inductive ballast, electric current can be shared by two coils, therefore can directly bear bigger electric current with thinner line, this parallel way can be avoided transition joint simultaneously, has avoided bearing the damage that big electric current causes owing to the contact resistance of transition joint.

Preferably, the head end that rises of described first coil is connected with a binding post with the head end that falls of second coil simultaneously, and the head end that falls of described first coil is connected with another binding post with the head end that rises of second coil simultaneously.

Preferably, described two coils are by the solid conductor coiling.

Preferably, described two coils are by the aluminium enamel-covered wire coiling.

Preferably, described iron core is made of inserting two U type laminations.

Description of drawings

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

Fig. 1 is the construction profile figure of a kind of Inductive ballast of the utility model.

Fig. 2 is the annexation schematic diagram of two coils in the utility model Inductive ballast.

Fig. 3 is the electrical schematic diagram of Fig. 2.

Embodiment

Below be example with the used Inductive ballast of 3.5KW dysprosium lamp, the structure of the utility model Inductive ballast is described.

As shown in Figure 1, Inductive ballast of the present utility model comprises coil, iron core and the fixing structural member of usefulness.Coil adopts two-wire to hold system, and two coils are wrapped in respectively on two U type laminations, then two U type laminations is formed complete iron core to inserting.These two coils are by thinner solid conductor coiling relatively, in order to reduce cost, used lead adopts aluminium enamel-covered wire, because its resistivity is greater than copper cash, in order to make the temperature rise of aluminum steel ballast can reach the index of original copper cash ballast, the diameter of aluminum enamelled wire should be greater than copper cash, about 1.13 times.Line is subjected to the restriction of lamination window size, the corresponding minimizing of the number of turn of coil after directly changing slightly.

As shown in Figure 2, during coiling, with first coil 1 of aluminum enamelled wire coiling of a diameter 2.3mm totally 264 circles, second coil 2 of coiling in the same way.Then, the head end 11 that rises of first coil 1 is connected with a binding post 3 with the head end 22 that falls of second coil 2 simultaneously, the head end 12 that falls of first coil is connected with another binding post 4 with the head end 21 that rises of second coil simultaneously, thereby form relation in parallel, its electrical schematic diagram as shown in Figure 3.This connected mode can be avoided the tie point of big electric current, reduces the contact resistance of tie point.Like this, can make the technique for coiling of coil more simple, make things convenient for; And owing to adopt and to be connected in parallel, necessary tie point when having save two coils series connection has reduced the occurrence probability of fault.

The Inductive ballast that this employing aluminum steel is made, its electric property with adopt the thread ballast performance index of copper enamel-cover identical, but that material cost only is 62% economic benefit of copper cash ballast is considerable.

Claims

1. an Inductive ballast comprises coil and iron core, it is characterized in that: described coil has two, is wrapped in the both sides of described iron core respectively, and is connected in parallel between two coils.

2. Inductive ballast according to claim 1, it is characterized in that: the head end that rises of described first coil is connected with a binding post with the head end that falls of second coil simultaneously, and the head end that falls of described first coil is connected with another binding post with the head end that rises of second coil simultaneously.

3. Inductive ballast according to claim 1 is characterized in that: described two coils are by the solid conductor coiling.

4. Inductive ballast according to claim 3 is characterized in that: described two coils are by the aluminium enamel-covered wire coiling.

5. Inductive ballast according to claim 1 is characterized in that: described iron core is made of inserting two U type laminations.