CN201114949Y

CN201114949Y - Ballast

Info

Publication number: CN201114949Y
Application number: CNU2007201556570U
Authority: CN
Inventors: 叶际爽
Original assignee: Individual
Current assignee: SHANGHAI YUANMING LIGHTING CO Ltd
Priority date: 2007-07-30
Filing date: 2007-07-30
Publication date: 2008-09-10
Anticipated expiration: 2017-07-30

Abstract

The utility model relates to a ballast, which comprises a fixed base plate, two end cards and a ballast coil; the end card comprises an upper edge and a peripheral lateral wall and a tongue shape inner wall formed by surrounding the upper edge; the two end cards are arranged at the two ends of the fixed base plate and opposite to each other; the ballast coil surrounds and is fixed tightly on the tongue shape wall; the bottom of the peripheral lateral wall forms wire-leading holes and two ballast coils are connected externally with two whole leading wires; the leading wire is led out from the top of the ballast coil and leads a connecting power by the wire-leading holes; the position on the upper edge which faces the ballast coil is provided with racks which bulges downwards; the racks causes the leading wires of the ballast coil to be pressed and fixed on the top of the ballast coil, and the leading wire is led out in one whole stick without the arrangement of wiring terminals as the conductive connection on the fixing base plate, thus saving the length of the fixing base plate, arranging the ballast into fluorescent lamps with small volume, and saving the cost for manufacturing the fluorescent lamps.

Description

Ballast with a current limiting circuit

Technical Field

The utility model relates to a ballast.

Background

At present, manufacturers for producing fluorescent lamps try to reduce the installation space of ballasts in order to reduce cost, but the number of leads for the prior art that are connected with the ballasts is generally two, one lead is led out from a ballast coil and is connected with a wiring terminal on a fixed bottom plate, and then a user uses an independent lead to connect the wiring terminal and a power supply so as to supply power to the coil of the ballast.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a ballast that is small is provided.

In order to solve the problem, the utility model discloses take following technical scheme:

the utility model provides a ballast, includes a PMKD, two end clamps and a ballast coil, the end clamp is including last eaves and surround go up peripheral lateral wall and the tongue shape inner wall that the eaves formed, two end clamps are to establishing PMKD's both ends, ballast coil surround and tightly bind on two tongue shape walls, the bottom of peripheral example wall is formed with the pin hole, ballast coil is external to have a whole root lead wire, the lead wire is derived by ballast coil top and is drawn forth the connection power by the pin hole, go up the eaves on just being provided with the downward bellied rack to ballast coil's position, the rack sticiss the lead wire of ballast coil to fix the top at ballast coil.

The rack is in an inverted triangle shape.

The rack is at least two in close arrangement.

The lead is a wire of a cable or an external sleeve.

The sleeve is a high-temperature-resistant sleeve, the lead is a high-temperature-resistant lead, and the cable is a high-temperature-resistant cable.

And the upper brim of the end clamp is provided with heat dissipation holes.

The upper eave is quadrilateral, and the cross section of the peripheral side wall is arc-shaped.

The upper eave is rectangular with arc angles.

The utility model has the advantages that: a ballast comprises a fixed bottom plate, two end clamps and a ballast coil, wherein each end clamp comprises an upper brim, a peripheral side wall and a tongue-shaped inner wall, the peripheral side wall and the tongue-shaped inner wall are formed by surrounding the upper brim, the two end clamps are oppositely arranged at two ends of the fixed bottom plate, the ballast coil is tightly surrounded on the two tongue-shaped walls, a lead hole is formed at the bottom of the peripheral side wall, the two ballast coils are externally connected with two whole leads, the leads are led out from the top of each ballast coil and are led out from the lead holes to be connected with a power supply, a downward protruding rack is arranged on the upper brim opposite to the ballast coils, the racks press and fix the leads of the ballast coils at the top of the ballast coils, the leads are led out in a whole piece, a connecting terminal does not need to be arranged on the fixed bottom plate for conducting connection, therefore, the length of the fixed bottom plate is saved, and the ballast can, the cost of manufacturing the fluorescent lamp is saved.

Drawings

Fig. 1 is a top view of the ballast of the present invention;

fig. 2 is a front sectional view of the ballast of the present invention;

fig. 3 is a sectional view of B-B' in fig. 1.

Wherein,

1. fixed bottom plate 2, end clamp 3, silicon steel sheet 4, upper eaves

5. Peripheral side wall 6, lead hole 7, ballast coil 8 and rack

9. Sleeve 10, lead wire 11, heat dissipation hole 12, tongue-shaped wall

Detailed Description

Referring to fig. 1, 2 and 3, the ballast includes a fixed base plate 1, and two end clamps 2 respectively inserted into two ends of the fixed base plate 1, where the end clamps 2 include an upper brim 4 and a peripheral side wall 5, the upper brim 4 is a quadrilateral, three sides of the quadrilateral upper brim 4 vertically extend downward to form the peripheral side wall 5, a tongue-shaped wall 12 perpendicular to the sides is formed in the middle of the fourth side, and the width of the tongue-shaped wall 12 is less than the side length of the fourth side. The lower bottom of the peripheral side wall 5 is provided with a lead wire hole 6, the section of the ballast coil 7 is rectangular and has a certain thickness in the longitudinal direction, the ballast coil 7 is tightly hooped and sleeved on the tongue-shaped wall 12 and is tightly supported and fixed by the two tongue-shaped walls 12, and the silicon steel sheet 3 is inserted between the two tongue-shaped walls 12 and surrounds the middle of the ballast coil 7. The bottom is riveted and fixed on the fixed bottom plate 1. The ballast coil 7 is connected with a lead wire for connecting an external power supply, and the lead wire is led out from the top of the ballast coil 7 and led out from a lead wire hole 6 at the bottom of the peripheral side wall 5 of the end clamp 2 to be connected with the power supply. The lead is led out in a whole, and a connecting terminal does not need to be arranged on the fixed bottom plate 1 for conducting connection, so that the length of the fixed bottom plate 1 is saved, the ballast can be installed in a fluorescent lamp with a small volume, and the cost for manufacturing the fluorescent lamp is saved. The upper brim 4 at the upper end of the ballast coil 7 is provided with a protruding rack 8 upwards and downwards, the rack 8 tightly presses and fixes the lead of the ballast coil 7 on the top of the ballast coil 7, and the lead can be prevented from being pulled out and shifted, so that the power of the ballast can not be cut off due to the fact that the ballast cannot be connected with a power supply.

The shape of the upper eaves 4 is preferably a rectangle with two arc corners, and the peripheral side wall 5 is formed by three sides with the arc corners extending vertically downwards. The structure is beautiful in appearance and brings good visual enjoyment to people. Of course, the upper eaves 4 may have other quadrilateral shapes, such as a trapezoid shape, and may also have a circular or elliptical shape.

Preferably, the rack 8 can be in an inverted triangle shape, the area of the top end of the triangle is small, the fixing force is strong, and the lead can be better fixed. Of course, other shapes such as rectangular, trapezoidal, or conical shapes are also possible.

Preferably, the rack 8 is at least two closely arranged, and the fixing force of the plurality of racks 8 is stronger.

Preferably, the lead wires are generally the wires 10 of the peripheral sleeve 9, the insulating sheath of the cable (the wires 10 are located in the sleeve 9 in fig. 1) and the sleeve 9 prevent the inner wires 10 from being directly pressed by the rack 8, thereby protecting the inner wires 10 from being damaged. Of course, the lead may also be a cable.

In order to prevent the above problems, it is preferable to provide the sleeve 9 as a high temperature resistant sleeve 9, the lead 10 is preferably a high temperature resistant lead 10, and the cable is also preferably a high temperature resistant cable, which can effectively prevent the cable or the lead 10 from being burned out, thereby saving maintenance cost.

For further insurance, the upper eave 4 is provided with heat dissipation holes 11, so that heat inside the ballast can be dissipated, and when paint is dipped, redundant paint can flow out of the heat dissipation holes 11.

In order to save the length of the fixing base plate 1, a thread (not shown) may be tapped from the bottom of the fixing base plate 1 upward and installed from below with a bolt, thereby saving the area occupied when the bolt is installed on the front surface of the fixing base plate 1 and reducing the length of the fixing base plate 1.

The groove-shaped side wall 5 is preferably arc-shaped, the arc-shaped visual effect is better, the connection transition between the groove-shaped side wall and the side plate is easy, the connection part is smooth, and the appearance is more attractive visually. Of course, other shapes are possible, such as a bucket shape with a flat bottom in cross section, and other suitable shapes are also possible.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a ballast, includes a PMKD, two end clamps and a ballast coil, its characterized in that, the end clamp is including last eaves and surround go up peripheral lateral wall and the tongue shape inner wall that the eaves formed, two end clamps are to establishing PMKD's both ends, ballast coil surround tightly bind round on two tongue shape walls, the bottom of peripheral lateral wall is formed with the pin hole, ballast coil is external to have an integral root lead wire, the lead wire is derived by ballast coil top and is drawn forth the connection power by the pin hole, go up the eaves on just being provided with the downward prominent rack to ballast coil's position, the rack sticiss the lead wire of ballast coil to fix at ballast coil's top.

2. The ballast of claim 1, wherein the rack is an inverted triangle.

3. The ballast of claim 1, wherein the rack is at least two closely spaced.

4. A ballast as claimed in any one of claims 1 to 3, wherein the lead is a wire of a cable or a peripheral sleeve.

5. The ballast according to claim 4, wherein the sleeve is a high temperature resistant sleeve, the wire is a high temperature resistant wire, and the cable is a high temperature resistant cable.

6. The ballast according to claim 1, wherein the upper eaves are provided with heat dissipation holes.

7. The ballast according to claim 1, wherein the upper eaves are quadrilateral, and the cross-sectional shape of the peripheral side wall is arc-shaped.

8. The ballast according to claim 7, wherein the upper eaves have a rectangular shape with arc corners.