WO2006074585A1

WO2006074585A1 - Safety high-voltage halogen bulb

Info

Publication number: WO2006074585A1
Application number: PCT/CN2005/000976
Authority: WO
Inventors: Huanxing Zhao
Original assignee: Changzhou Fuxing Electrical Appliance Co., Ltd.
Priority date: 2005-01-12
Filing date: 2005-07-04
Publication date: 2006-07-20
Also published as: CN2775831Y

Abstract

A safety high-voltage halogen bulb includes an envelope (1), a filament (2), a filament support, molybdenum foils (4) and molybdenum lead wires (5). The chamber of the bulb (1) is filled with the halogen gas. The filament (2) is positioned in the chamber of the bulb (1) and is supported or hanged by the filament support. The bulb is characterized that the filament support is a supporting glass suspender made of the same material with that of the bulb. The supporting glass suspender is an extending portion in the chamber of the bulb (1). The bulb is further characterized that the middle portion of the filament (2) is hanged or supported on the supporting glass suspender. The bulb is further characterized that the two legs of the filament (2) extend downward into the glass body on the underside of the bulb (1) and then extend through the molybdenum foils (4) and the molybdenum lead wires (5) towards the outside of the bulb (1). Therefore, the bulb is formed as a bulb structure in which only the filament (2) as a conductor gets through the chamber of the bulb (1) by itself. The present invention utilizes the supporting glass suspender instead of the known tungsten- molybdenum support so that it has a simple structure, and the filament is the only conductor and any of other conductors doesn't get through or isn't exposed in the chamber of the bulb. The design avoids the large arc produced at the time of the filament damaged and then prevents the risk of the bulb blast. So the present invention can effectively prevent the bulb blast caused by sparking, shot-circuit, impulse voltage and filament-broken so that it improves the service life and the safety of the bulb.

Description

Full-type high-light bulbs

The present invention relates to the field of lighting technology, and in particular to a safety type high pressure halogen bulb for indoor and outdoor lighting.

Background technique

A conventional high-pressure bulb, as shown in Fig. 11, is composed of a bulb 1, a filament 2, a tungsten-molybdenum stent 6, a glass bead 7, two molybdenum sheets 4, and two lame 5 members. The filament 2 is disposed in the inner cavity of the bulb 1 and supported by the tungsten-molybdenum bracket 6 (filament bracket). The rods in the tungsten-molybdenum bracket 6 are fixedly connected by the bead 7 and the ends of the filament 2 are respectively made of tungsten and molybdenum. The electrode rod, the molybdenum sheet 4 and the molybdenum leg 5 in the holder 6 are connected in a loop and are taken out from the lower end of the bulb 1.

The high-pressure surface lamp usually works under a high voltage of about 220V. Since the inner cavity of the bulb 1 is filled with a halogen gas, the tungsten on the filament 2 evaporates at a high temperature during the ignition process, and is deposited in the bulb 1 and the bead 7, tungsten. On the molybdenum support 6, if the deposited tungsten reaches a certain amount, creepage and arcing are likely to occur between the electrodes. At this time, the current on the conductor of the lamp is significantly increased, and the temperature inside the bulb 1 is significantly increased, so that the bulb 1 is inside. The gas pressure rises sharply and will explode once the gas pressure in the bulb 1 exceeds the pressure that the bulb can withstand. Although the safety factor of the bulb has been put as large as possible at the time of design, the explosion of the high-voltage halogen bulb in actual use still occurs from time to time. The existing solution is to set a fuse in the lamp cap, also called a fuse, that is, a fuse is arranged in the conductive loop of the filament, such as Chinese utility model patents CN2475137Y, CN2572555Y and CN2645231Y, but the actual explosion-proof performance of the bulb is not observed. Significant improvement.

According to the applicant's research, although the cause of the explosion of the high-voltage halogen bulb is more complicated, there are three reasons for the bulb explosion that is objectively easy: The first one is that the bulb is prone to occur when the life is about to end; the second is It is easy to occur in the case of voltage shock; 笫 three are easy to occur when the filament is short-circuited. However, from a subjective point of view, the tungsten-molybdenum metal stent in the traditional bulb structure is one of the important factors causing the bulb to explode. The reason is: Since the tungsten-molybdenum metal bracket is placed in the inner cavity of the bulb 1, when the filament 2 is damaged instantaneously The metal bracket becomes a reliable discharge electrode, thus generating a large arc, which is enough to cause the gas in the bulb 1 to rapidly heat up and expand, generating a large gas pressure, which directly causes the bulb to explode. However, the reflection speed of the fuse at the moment of damage of the filament 2 is delayed, so the effect on the explosion prevention is not obvious. It can be seen that the safety performance of the existing high-voltage halogen bulb structure is seriously insufficient.

Summary of the invention

The object of the invention is to provide a safety, simple explosion-proof performance and long service life. High-voltage halogen bulb to overcome the prior art

In order to achieve the above object, the technical solution adopted by the present invention is: a safe high-voltage halogen bulb composed of a bulb, a filament, a filament holder, a molybdenum sheet and a molybdenum leg, wherein the inner cavity of the bulb is filled with a halogen gas, and the filament is provided. In the inner cavity of the bulb, and supported or suspended by the filament support, the innovation is: the filament support is a glass support suspension homogenous to the bulb material, the glass support suspension is an extension in the inner cavity of the bulb The middle part of the filament is suspended or supported on the glass supporting suspension in a non-fixed manner, and the two ends of the filament are drooped into the glass body at the lower end of the bulb, and are taken out from the bulb through the molybdenum sheet and the phase leg, thereby forming only the filament itself as a conductive The body passes through the bulb structure in the inner cavity of the bulb.

The relevant content in the above technical solutions is explained as follows:

1. In the above solution, the "the middle of the filament is suspended or supported on the glass supporting suspension" refers to the way in which the glass supports the hanging object in contact, and the filament is supported or suspended in the cavity of the blister in a non-fixed manner. in. Specifically, the support or the suspension is in contact with the filament in the form of a groove, a hook body, and a perforation. In this case, the filament is supported by a groove, a hook body, a perforation or the like provided on the glass support suspension. To achieve support or suspension, the supported or suspended portion of the filament can be moved relative to the groove, the hook body, the perforation, etc., and the fixed position of the filament after the fixing is not relatively movable.

1. In the above solution, in the inner cavity of the bulb, the glass supporting suspension is used as a suspension or support body of the filament in the form of an extension of the inner cavity of the bulb, and the typical structural forms thereof are single, simple and multi-body. Type, where:

(1), monomer type, refers to a filament bracket consisting of a single glass rod or glass tube, which specifically includes the following four types:

1. The glass supporting suspension is composed of a glass rod or a glass tube. The upper end of the glass rod or the glass tube is fixedly connected with the top of the inner wall of the bulb, and is suspended or suspended in the inner cavity of the bulb, and the middle of the filament is suspended in the hanging On the rod or on the pipe.

2. The glass supporting suspension is composed of a glass rod or a glass tube. The lower end of the glass rod or the glass tube is fixedly connected with the bottom of the inner wall of the bulb, and the column or the vertical tube is in the inner cavity of the bulb, and the middle of the filament is supported on the column or On the riser.

3. The glass support suspension is composed of a glass rod or a glass tube. One end of the glass rod or the glass tube is fixedly connected with the middle or upper part of the inner wall of the bulb, and is cantilevered or cantilevered in the inner cavity of the bulb, and the middle part of the filament is suspended. The cantilever or cantilever tube.

4. The glass supporting suspension is composed of a glass rod or a glass tube. The two ends of the glass rod or the glass tube are respectively fixedly connected with the middle or upper part of the inner wall of the bulb, and are in the shape of a beam in the inner cavity of the bulb, and the middle part of the filament is suspended. On the beam. — ( ΐ ); — The type of carcass, refers to the two single glass rods or glass tube structure, such as the filament support, such as the glass support suspension consists of two upper and lower glass rods or glass tubes, the upper glass rod Or the two ends of the glass tube are respectively fixedly connected with the upper part of the inner wall of the bulb, and the two ends of the lower glass rod or the glass tube are respectively fixedly connected with the middle and lower part of the inner wall of the shell, and the upper and lower rods or glass tubes are cross in the inner cavity of the bulb. In the shape of a beam, the middle of the filament is suspended on the upper beam, and the legs of the filament at both ends of the filament are fixed on the lower beam.

(3) Multi-body type refers to a filament support consisting of two or more single glass rods or glass tubes. For example, a glass support suspension consists of three glass rods or glass tubes, of which an upper glass rod or glass tube is used for The middle of the filament is supported, and two lower glass rods or glass tubes are used to fix the legs of the filament at both ends of the filament.

3. In the above scheme, in order to make the filament arrangement in the inner cavity of the bulb simple and reasonable, the filament can be designed into a structure, the top of which is a solitary jumper section, the middle part of each side is a spiral section, and the roots on both sides are straight. The tail wire segment forms a bilaterally symmetrical structure. The rounded wire segment is used for suspension or support, and the coil segment is suspended for main illumination. The straight tail wire segment of the root can be directly inserted into the glass body at the lower end of the bulb, or directly supported by the lower portion and then inserted into the glass body at the lower end of the bulb. The lower support referred to herein means a case in which a two-body type or a multi-body type is used to fix two filaments of a filament with a lower glass rod or a glass tube. Of course, the filament can also be designed into other shapes as needed, such as the filament running back and forth in the inner cavity of the bulb, or spiraling.

The concept and principle of the present invention are: In view of the analysis of the cause and mechanism of the explosion of the existing high-voltage halogen bulb in the background art, the present invention excludes any other part of the bulb cavity except the filament portion as an electric conductor. The design of an electrical conductor (such as a filament holder portion) that passes or is exposed in the lumen of the bulb to avoid a large arc from instantaneous damage to the filament, thereby causing a risk of bulb explosion.

Due to the application of the above technical solution, only the filament portion of the inner cavity of the blister is an electric conductor, and the filament support is composed of a single raft, two or more glass rods or glass tubes to form a glass supporting suspension structure, and the filament is directly Supported or suspended, the filaments of both ends of the filament are directly connected to the molybdenum plate in the glass body. Compared with the prior art, the fuse structure and the structure of the tungsten-molybdenum material are not required, and the bulb structure is simple and scientific on the one hand. On the other hand, more importantly, because the filament support is not used in the bulb to support the filament, it fundamentally avoids the change of metal molecules generated when the gas circulates inside the bulb. When the filament is damaged, the metal The bracket becomes a reliable discharge electrode, which causes a large arc, which causes the gas in the bulb to rapidly heat up and expand, which generates a large gas pressure, directly causing the mechanism of the bulb to explode, thus eliminating power jump, short circuit, and voltage shock from the perspective of safety. And the possibility of a light bulb explosion caused by broken wires, thereby prolonging the service life of the light bulb, greatly improving Security used.

DRAWINGS The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

Figure 1 is a front elevational view showing the first structure of the present invention;

Figure 2 is a left side view of Figure 1;

Figure 3 is a front elevational view showing the two structures of the present invention;

Figure 4 is a left side view of Figure 3;

Figure 5 is a front elevational view showing the third structure of the present invention;

Figure 6 is a left side view of Figure 5;

Figure 7 is a front elevational view showing the fourth structure of the present invention;

Figure 8 is a left side view of Figure 7;

Figure 9 is a front elevational view showing the fifth structure of the present invention;

Figure 10 is a left side view of Figure 9;

Figure 11 is a schematic view of the structure of a conventional high voltage! 3⁄4 prime bulb.

In the above figures, 1, blister; 2, filament; 3, glass rod; 4, molybdenum sheet; 5, molybdenum foot; 6, tungsten-molybdenum bracket; 7, glass beads; 8, curved jump wire segment; Screw section; 10, straight tail section.

detailed description

Embodiment 1:

As shown in Figures 1 and 2, a safe high-pressure halogen bulb consists of a bulb 1, a filament 2, a glass-supporting suspension, a molybdenum sheet 4, and a molybdenum foot 5. The inner cavity of the bulb 1 is filled with a halogen gas, the filament 2 is disposed in the inner cavity of the bulb 1, and the glass supporting suspension is composed of a glass rod 3 or a glass tube homogenous to the material of the bulb 1, the glass rod 3 or The upper end of the glass tube is fixedly connected with the top of the inner wall of the bulb 1 , and the inner part of the bulb 1 is in the shape of a boom or a hanging tube, and the lower part of the boom or the hanging tube is provided with a hook body. The filament 2 has an "n"-shaped structure in the inner cavity of the bulb 1, the top of which is a curved jumper section 8, the middle part of each side is a coil section 9, and the roots on both sides are straight tail sections 10, forming a bilaterally symmetric structure. . The curved arc-shaped wire segment 8 on the top of the filament 2 is hung on the hook body of the boom or the hanging pipe, and the spiral segment 9 in the middle of the two sides is suspended, and the straight-tailed wire segment 10 of the two ends of the wire is drooped into the glass body at the lower end of the bulb 1 And the molybdenum sheet 4 and the molybdenum foot 5 are taken out from the bulb 1 to form a bulb structure in which only the filament 2 itself acts as an electric conductor in the inner cavity of the bulb 1. The glass rod 3 can be solid or hollow, that is, made into a glass tube.

Embodiment 2:

As shown in Figures 3 and 4, a safe high-pressure halogen bulb consists of a bulb 1, a filament 2, a glass-supporting suspension, a molybdenum sheet 4, and a molybdenum foot 5. The difference from the first embodiment is that: the bottom end of the glass rod 3 or the glass tube is fixedly connected with the bottom of the inner wall of the bulb 1 , and the column or the vertical tube is formed in the inner cavity of the bulb 1 , and the top of the column or the riser is provided with a groove. . The top curved wire segment 8 of the filament 2 is supported on the groove on the top of the column or the riser, and the coil segment 9 in the middle of the two sides is suspended, and the wire ends of the wire are closed at each end. The drooping is inserted into the lower end of the bulb 1 and is taken out from the bulb f via the molybdenum sheet 4 and the molybdenum leg 5, thereby constituting a bulb structure in which only the filament 2 itself travels as an electric conductor in the inner cavity of the bulb 1. Others are the same as in the first embodiment, and the description thereof will not be repeated here.

Embodiment 3:

As shown in Figures 5 and 6, a safe high-pressure halogen bulb consists of a bulb 1, a filament 2, a glass-supporting suspension, a molybdenum sheet 4, and a molybdenum foot 5. The difference from the first embodiment is that: one end of the glass rod 3 or the glass tube is fixedly connected with the middle portion or the middle portion of the inner wall of the bulb 1 , and is cantilevered or cantilevered in the inner cavity of the bulb 1 , and the arm of the cantilever or cantilever tube Perforated. The top curved jumper section 8 of the filament 2 is suspended in the perforation of the cantilever or the cantilever tube, and the threaded section 9 in the middle of the two sides is suspended, and the straight tail section 10 of the two ends of the filament is drooped into the lower end of the bulb 1 and is The molybdenum sheet 4 and the phase leg 5 are taken out from the bulb 1 to constitute a bulb structure in which only the filament 2 itself travels as an electric conductor in the inner cavity of the bulb 1. Others are the same as in the first embodiment, and the description thereof will not be repeated here.

Embodiment 4:

As shown in Figures 7 and 8, a safe high-pressure halogen bulb consists of a bulb 1, a filament 2, a glass-supported suspension, a molybdenum sheet 4, and a molybdenum foot 5. The difference from the first embodiment is that: the two ends of the glass rod 3 or the glass tube are respectively fixedly connected with the middle portion or the middle portion of the inner wall of the bulb 1 , and are formed in a beam shape in the inner cavity of the bulb 1 , and the beam is provided with a groove ( Or V-shaped groove). The curved arc-shaped wire segment 8 on the top of the filament 2 is hung on the groove of the beam, and the coil segment 9 in the middle of the two sides is suspended, and the straight-tailed wire segment 10 of the two ends of the wire is drooped into the glass body at the lower end of the bulb 1 and passed through the molybdenum sheet 4 And the molybdenum foot 5 is taken out from the bulb 1 to constitute a bulb structure in which only the filament 2 itself travels as an electric conductor in the inner cavity of the bulb 1. Others are the same as in the first embodiment, and the description will not be repeated here.

Embodiment 5:

As shown in Figures 9 and 10, a safe high-pressure halogen bulb consists of a bulb 1, a filament 2, a glass-supporting suspension, a molybdenum sheet 4, and a molybdenum foot 5. The difference from the first embodiment is that: the glass supporting suspension is composed of two upper and lower glass rods 3 or glass tubes, and the two ends of the upper glass rod 3 or the glass tube are respectively fixedly connected with the upper part of the inner wall of the bulb 1 , and the lower glass The two ends of the rod 3 or the glass tube are respectively fixedly connected with the middle and lower portions of the inner wall of the bulb 1 , and the upper and lower two glass rods 3 or glass tubes are in the shape of a cross beam in the inner cavity of the bulb 1 . The top curved wire segment 8 of the filament 2 is hung on the groove of the upper beam, the spiral segment 9 in the middle of the two sides is suspended, and the straight tail segments 10 of the two ends are fixed on the perforations of the lower beam, and are inserted into the blister 1 The lower end of the vitreous body is taken out from the bulb 1 via the molybdenum sheet 4 and the phase leg 5, thereby constituting a bulb structure in which only the filament 2 itself travels as an electric conductor in the inner cavity of the bulb 1. This structure is particularly suitable for long filaments. Others are the same as in the first embodiment, and the description thereof will not be repeated here.

The above embodiments are only for explaining the technical idea and features of the present invention, and the purpose thereof is to familiarize themselves with this. The person skilled in the art can understand the contents of the present invention and implement it, and cannot limit the scope of protection of the present invention. Equivalent variations or modifications made in accordance with the spirit of the invention are intended to be included within the scope of the invention.

Claims

Claim

1. A safe high-pressure halogen bulb consisting of a bulb [1], a filament [2], a filament holder, a molybdenum sheet [4] and a molybdenum foot [5]. The inner cavity of the bulb [1] is filled with a halogen. The gas, the filament [2] is disposed in the inner cavity of the bulb [1] and supported or suspended by the filament holder, wherein: the filament holder is a glass supporting suspension homogenous to the material of the bulb [1], The glass support suspension is an extension in the inner cavity of the bulb [1], and the middle portion of the filament [2] is suspended or supported on the glass support suspension in a non-fixed manner, and the filaments at both ends of the filament [2] are inserted into the bulb [1]. The lower end of the glass body, and is extracted from the blister [1] by the molybdenum sheet [4] and the molybdenum foot [5], thereby forming a bulb in which only the filament [2] itself acts as an electric conductor in the inner cavity of the blister [1]. structure.

2. The safety type high-voltage halogen bulb according to claim 1, wherein: the glass supporting suspension is composed of a glass rod [3] or a glass tube, and the upper end of the glass rod [3] or the glass tube is bubbled. The top of the inner wall of the shell 〖1] is fixedly connected, and is in the inner cavity of the bulb [1] as a boom or a hanging tube, and the middle of the filament [2] is suspended on the boom or the hanging tube.

3. The safety type high-voltage halogen bulb according to claim 1, wherein: the glass supporting suspension is composed of a glass rod [3] or a glass tube, and the bottom end of the glass rod [3] or the glass tube is bubbled. The shell 〖1] is fixedly connected at the bottom of the inner wall, and is in the inner cavity of the bulb [1] as a column or a vertical tube, and the middle of the filament [2] is supported on the column or the riser.

4. The safety type high-voltage halogen bulb according to claim 1, wherein: the glass supporting suspension is composed of a glass rod [3] or a glass tube, and one end of the glass rod [3] or the glass tube is bubbled. The middle or middle part of the inner wall of the shell [1] is fixedly connected, and is in a cantilever or cantilever tubular shape in the inner cavity of the bulb [1], and the middle of the filament [2] is suspended on the cantilever or the cantilever tube.

5. The safe high-voltage halogen bulb according to claim 1, wherein: the glass supporting suspension is composed of a glass rod [3] or a glass tube, and the two ends of the glass rod [3] or the glass tube are respectively It is fixedly connected with the middle or middle part of the inner wall of the bulb [1], and has a beam shape in the inner cavity of the bulb [1], and the middle portion of the filament [2] is suspended on the beam.

6. The safety type high-pressure halogen bulb according to claim 1, wherein: the glass supporting suspension is composed of upper and lower two glass rods [3] or glass tubes, upper glass rods [3] or glass tubes. The two ends are fixedly connected to the upper part of the inner wall of the blister [1], and the two ends of the lower glass rod [3] or the glass tube are respectively fixedly connected with the middle and lower part of the inner wall of the blister [1], and the upper and lower two glass rods [3] or The glass tube is in the shape of a cross beam in the inner cavity of the bulb [1], and the middle part of the filament [2] is suspended on the upper beam, and the legs of the filament [2] are fixed on the lower beam.

The safety type high-voltage halogen bulb according to claim 1, wherein: the filament [2] has an "n"-shaped structure in the inner cavity of the bulb [1], and the top portion is a curved jumper segment. The middle part of the two sides is a spiral circle section, and the two sides of the two sides are straight tail wire segments, thereby forming a bilateral symmetrical structure.