Double-layer light source high-power HID lamp

Abstract

The utility model discloses a high-power HID (High Intensity Discharge) lamp with a double-layer light source, which solves the problems of excessive manual spot welding quantity, low quality reliability and low production efficiency of lamp products, and the problems of poor heat effect of a filament structure, limitation on the power of the whole lamp and low total light output quantity. Comprising a bulb shell, a core column fixed to the inner bottom end of the bulb shell and a plurality of lamp filaments located in the bulb shell, a core column support is fixedly arranged on the core column, the lamp filaments are arranged in an a row and a b row up and down, the a row of lamp filaments are connected with a first connecting component, and the b row of lamp filaments are connected with a second connecting component. The a row of lamp filaments and the b row of lamp filaments are connected through a third connecting component, and the first connecting component and the second connecting component are fixed to the core column support. According to the utility model, the number of welding spots is reduced, the heat effect of the lamp is optimized, the power and the total light output quantity of the whole lamp are improved, and the quality stability of a lamp product is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of lighting, and particularly provides a double-layer light source high-power HID lamp. Background Art

[0002] An HID lamp refers to a high-pressure gas discharge lamp filled with an inert gas mixture including xenon inside, and can be called a metal halide lamp or a xenon lamp. Existing filament lamp products involving multiple filaments have a single-layer filament structure, where the filaments are arranged in a single layer and fixed on a core column bracket through connecting pieces.

[0003] However, the lamp products with a single-layer filament structure have a small number of filaments in a limited space and are not densely distributed, resulting in a low total light output of the lamp products and a low lumen of the lamp products. The heat dissipation area of the single-layer filament structure is also relatively small, which will cause a poor heat effect and lead to the problem of local overheating, thereby reducing the lifespan and efficiency of the lamp products and also limiting the overall lamp power. The mechanical stability of the single-layer filament structure is also low, and there is a risk of fracture caused by vibration or thermal expansion. In addition, the core column bracket structure with support between the existing technology and the bulb shell is relatively complex, with a large production difficulty. And the number of spot welds during the process of fixing the filaments on the core column bracket through connecting pieces is too many. While the production efficiency is low, it is easy to cause many bad problems such as de-welding and over-welding during the manual spot welding process, resulting in poor quality stability of the lamp products and also affecting the heat dissipation performance of the internal components. Therefore, a new lamp structure is needed, which can achieve the same support effect while reducing the number of solder joints between the filament structure and the core column bracket, optimize the heat effect of the lamp, improve the overall lamp power and total light output, and strengthen the quality stability of the lamp products. Summary of the Utility Model

[0004] In order to solve the problems of excessive manual spot welding quantity, low quality reliability and low production efficiency of lamp products in the prior art, as well as the problems that the heat effect of the filament structure is poor, resulting in low lifespan and efficiency of lamp products, limiting the overall lamp power and low total light output, the utility model provides a double-layer light source high-power HID lamp. Through the novel filament assembly structure and core column bracket structure, the same support effect is achieved while reducing the number of solder joints between the filament structure and the core column bracket. At the same time, the heat effect of the lamp is optimized, the overall lamp power and total light output are improved, and the quality stability of the lamp products is strengthened.

[0005] The specific scheme of the utility model is as follows.

[0006] A double-layer light source high-power HID lamp, comprising a bulb, a stem fixed to the inner bottom end of the bulb, and a plurality of filaments located within the bulb. A stem bracket is fixedly provided on the stem. The plurality of filaments are arranged in two upper and lower rows, namely row a and row b. The filaments in row a are connected to a first connecting member, the filaments in row b are connected to a second connecting member, the filaments in row a and the filaments in row b are connected through a third connecting member, and the first connecting member and the second connecting member are fixed on the stem bracket.

[0007] The three connecting members and the two rows of filaments form a filament assembly with the above structure, realizing the double-layer light source structure of the lamp product. The polarities of the filaments in the same row are the same, that is, the positive electrodes of the filaments in the same row are connected to the same connecting member, and the negative electrodes of the filaments in the same row are connected to another connecting member. Through the connection of the first connecting member and the second connecting member to the stem bracket, the plurality of filaments are indirectly fixed on the stem bracket. Through the three connecting members and the filament assembly formed by the two rows of filaments with the above structure, the thermal effect of the lamp is preliminarily optimized, and the problem of local overheating is alleviated to a certain extent.

[0008] Furthermore, the third connecting member is located between the first connecting member and the second connecting member, and the three connecting members are arranged in parallel and connected to the plurality of filaments. The filaments and the three connecting members form a filament assembly. The third connecting member can be connected to the stem bracket or not connected to the stem bracket.

[0009] Even further, the positive electrode of the filaments in row a is connected to the first connecting member, and the negative electrode is connected to the third connecting member; the positive electrode of the filaments in row b is connected to the third connecting member, and the negative electrode is connected to the second connecting member; the number of filaments in the two rows is the same, and each row of filaments is arranged in parallel at equal intervals, and the number does not exceed 20.

[0010] The filaments in the same row are connected in parallel through the two connecting members connected to their two ends. The filaments in different rows, that is, the upper row of filaments and the lower row of filaments, are connected in series through the third connecting member. The included angle formed by the filaments and the connecting members connected to them can be a right angle, an acute angle or an obtuse angle. In an optimal embodiment of the present invention, the included angle is a right angle. Each row of filaments can be arranged at equal intervals or arranged non-equidistantly according to other rules. In an optimal embodiment of the present invention, each row of filaments is arranged in parallel at equal intervals, which is beneficial to the uniform light output of the lamp product. The above structure combined with the limitation of the number of filaments further optimizes the thermal effect of the lamp, effectively alleviates the problem of local overheating caused by uneven heat distribution, enables the overall power of the lamp to be made larger, the lumen to be made higher, and the cost performance to be better.

[0011] Furthermore, the three connecting members are in a circular ring shape. The three connecting members and the two rows of filaments form a filament assembly, and the filament assembly is in a cylindrical shape.

[0012] The three connecting members can be in a straight line shape. The three connecting members are formed into a circular ring shape through equipment tooling. The three connecting members are parallel and equal in length. The filament assembly formed by the three connecting members and the double-row filaments is formed into a cylindrical shape. Then, by connecting the first connecting member and the second connecting member to the core post bracket respectively, the filament assembly is fixed in the bulb shell.

[0013] Furthermore, a buckle is provided at the connection of the head and tail of the third connecting member. After the filament assembly formed by the three connecting members and the double-row filaments is formed into a cylindrical shape through equipment tooling, the head and tail ends of the first connecting member and the second connecting member are connected by spot welding, and the head and tail ends of the third connecting member are connected by the buckle, making its cylindrical structure more stable. The third connecting member does not need to be connected to the core post bracket, making the assembly process simpler and improving the production efficiency to a certain extent.

[0014] Furthermore, a plurality of through holes are evenly provided on the three connecting members. The filaments and the three connecting members are connected by automatic spot welding at the through holes. The through holes on each connecting member are arranged in a straight line. After automatic spot welding, the through holes are in a closed state. The welding of the filaments does not need to adopt the manual spot welding method in the prior art. Through automatic spot welding, not only the number of solder joints of manual spot welding is greatly reduced, the cost of manual spot welding is reduced, and the production efficiency is improved, but also the quality problems caused by de-soldering and over-welding in the manual spot welding process are effectively reduced, and the quality stability and reliability of the product are improved.

[0015] Furthermore, the core post bracket is in a columnar shape and is located at the central axis position of the bulb shell. A circular ring-shaped bracket ring is fixedly provided at the top end of the core post bracket. The bracket ring is provided with a disconnected notch. The bracket ring fits with the inner wall of the top end of the bulb shell. A cylindrical groove recessed inward is provided at the top end of the bulb shell, and the bracket ring is sleeved on the outer circle of the groove.

[0016] The core post bracket is located at the central axis position inside the bulb. By changing the size of the notch, the diameter of the bracket ring can be adjusted. The bracket ring is sleeved on the outer ring of the cylindrical groove that is recessed inward at the top of the bulb and abuts against the inner wall at the top of the bulb. During the production process, there may be an error in the size relationship between the inner diameter of the bracket ring and the outer diameter of the bulb groove. If there is no notch on the bracket ring, it will cause the bracket ring to be unable to be sleeved on the groove or the gap between the bracket ring and the outer ring of the groove to be too large. Therefore, by setting a notch on the bracket ring, the notch on the bracket ring will automatically adjust its size during the process of the bracket ring being sleeved on the outer ring of the groove, thereby adjusting the diameter of the bracket ring to fit the bulb groove, that is, the bracket ring fits against the outer wall of the groove, preventing the bracket ring from moving.

[0017] Furthermore, the core post bracket is bent near the bracket ring. At the lower end of the bent part, there are a first support wire and a second support wire. The first support wire and the second support wire are perpendicularly arranged and are in the shape of a downward-bending arc. The middle part winds around the core post bracket for one circle, and both ends are spot-welded to the first connecting member. The structure of the first support wire and the second support wire plays a role in radially fixing the first connecting member connected to them.

[0018] Further, at the bottom end of the core post bracket, there are a third support wire and a fourth support wire. One end of the third support wire is fixedly connected to the core post, and the other end is spot-welded to the second connecting member. The fourth support wire is in the shape of an arc, and the middle is connected to the third support wire, and both ends are spot-welded to the second connecting member.

[0019] The structure of the third support wire and the fourth support wire plays a role in both axially fixing and radially fixing the second connecting member connected to them. The four support wires cooperate to fix the filament assembly composed of the three connecting members and the double-row filament on the core post bracket. The core post bracket is fixed inside the bulb through the core post, so that the filament assembly composed of the three connecting members and the double-row filament is fixed inside the bulb, preventing it from moving inside the bulb. While having a simple structure and being convenient for assembly, the core post bracket ensures the stability of the filament assembly composed of the three connecting members and the double-row filament in the bulb space.

[0020] Further, a control circuit is embedded in the core post, including a control chip and a transistor. By setting the time ratio of the transistor to conduct and turn off through the control chip, the magnitude of the voltage across the filament is controlled.

[0021] The control circuit is powered by a Boost switching power supply topology scheme and is mainly composed of basic components such as a control chip U1, a power inductor T1, a MOSFET Q1, a diode, and a filter capacitor.

[0022] When the MOSFET Q1 is turned on, the input voltage is directly applied to the inductor T1, and the inductor current increases linearly. The inductor converts electrical energy into magnetic energy and stores it. At this time, the diode D3 is in the cut-off state to prevent the capacitor CD1 from discharging to the ground. At this time, the load is powered by the capacitor. The load is the LED chip on the filament.

[0023] When the MOSFET Q1 is turned off, due to the current holding characteristic of the inductor, the inductor current does not immediately become 0 but decreases slowly. An induced electromotive force with a negative left and positive right is generated across the inductor. After this induced voltage is superimposed on the input voltage, it charges the capacitor through the diode and supplies energy to the load, thus achieving step-up. By controlling the chip U1 to adjust the time ratio of the conduction and cut-off of the transistor Q1, the magnitude of the output voltage can be controlled to achieve constant current power supply to the load.

[0024] The utility model has the following beneficial effects.

[0025] Through the filament assembly composed of the three connecting members and the double-row filament, a double-layer light source structure of the lamp product is realized. There are more filaments in a limited space. Combined with the circuit structure of the filament, the total light output of the lamp product is improved. And the structure of the double-layer filament has a larger heat dissipation area, optimizing the heat effect of the lamp, thereby improving the life and efficiency of the lamp product. With the design of the control circuit, the power of the whole lamp can be made larger, the lumen can be made higher, and the cost performance is better.

[0026] At the same time, the double-layer filament structure can also disperse the load, thereby reducing the stress on each layer of the filament, reducing the risk of filament breakage caused by vibration or thermal expansion, and improving the mechanical stability of the filament structure.

[0027] In addition, the core column bracket structure of the utility model is simple. While ensuring the support effect, the number of solder joints between the filament assembly and the core column bracket is reduced, strengthening the quality stability of the lamp product. Description of the Drawings

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only the embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings.

[0029] Figure 1 It is a schematic diagram of the overall structure of a double-layer light source high-power HID lamp of the present utility model.

[0030] Figure 2 It is a top view of the internal structure of a double-layer light source high-power HID lamp of the present utility model.

[0031] Figure 3 This is a side view of the internal structure of a double - layer light - source high - power HID lamp of the present utility model.

[0032] Figure 4 This is a schematic diagram of the control circuit of a double - layer light - source high - power HID lamp of the present utility model.

[0033] In the figure: bulb shell 1, groove 101, base 2, filament 3, row - a filament 301, row - b filament 302, connecting member 4, first connecting member 401, second connecting member 402, third connecting member 403, through - hole 411, core column 5, core - column support 6, first support wire 601, second support wire 602, third support wire 603, fourth support wire 604, support ring 605. Specific embodiments

[0034] The following details the embodiments of the present utility model. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.

[0035] As Figure 1 shown is a schematic diagram of the overall structure of a double - layer light - source high - power HID lamp of the present utility model. A double - layer light - source high - power HID lamp of the present utility model includes a bulb shell 1 and a base 2, and the bulb shell 1 and the base 2 are fixedly connected. The bulb shell 1 has a pear - shaped hollow structure. Except Figure 1 for the shown pear shape, the bulb shell 1 can also have a spherical or oval - shaped hollow structure, etc. The side of the base 2 is provided with a thread for connecting to an external device to connect to a power source. A core column 5 is arranged inside the bulb shell 1. The lower end of the core column 5 is fixed on the base 2 at the bottom end of the bulb shell 1, and a core - column support 6 is fixedly arranged at the upper end of the core column 5. The lower end of the core - column support 6 is fixedly connected to the central position at the upper end of the core column 5, and the upper end supports on the inner wall at the top end of the bulb shell 1. The core - column support 6 is on the central axis inside the bulb shell 1. A plurality of filaments 3 are also arranged inside the bulb shell 1. Each filament 3 includes a plurality of LED chips and two electrodes at both ends of the filament 3. The plurality of LED chips and the two electrodes are electrically connected to each other, and each filament 3 has the same structure.

[0036] As Figure 2 and Figure 3The figures respectively show a top view and a side view of the internal structure of a double-layer light source high-power HID lamp of the present utility model. A plurality of filaments 3 of the present utility model are vertically arranged in two upper and lower rows, namely row a and row b. The filaments 301 in row a are located above the filaments 302 in row b. The filaments 3 in the same row are arranged in parallel and have the same polarity direction. The number of filaments 3 in the upper and lower two rows is the same, and the number of filaments 3 in each row does not exceed 20, and the filaments 301 in row a are aligned with the filaments 302 in row b. The positive electrode of the filaments 301 in row a is connected to a first connecting member 401, and the negative electrode is connected to a third connecting member 403. The positive electrode of the filaments 302 in row b is connected to the third connecting member 403, and the negative electrode is connected to a second connecting member 402. The plurality of filaments 3 and the three connecting members 4 form a filament assembly. The three connecting members 4 are arranged in parallel and have the same length, and are all made of conductive materials, such as iron-nickel plating, etc. The negative electrode of the filaments 301 in row a and the positive electrode of the filaments 302 in row b are connected through the third connecting member 403. The filaments in the same row are connected in parallel through the two connecting members connected to their two ends, and the filaments in different rows, that is, between the filaments 301 in row a and the filaments 302 in row b, are connected in series through the third connecting member 403.

[0037] A plurality of through holes 411 are uniformly provided on the three connecting members 4. The through holes 411 on each connecting member are arranged in a straight line, and after automatic spot welding, the through holes 411 are in a closed state. The filaments 3 and the three connecting members 4 are connected at the through holes 411 by means of automatic spot welding, rather than by manual spot welding. The included angle formed by the filaments 3 and the connecting members 4 connected thereto can be a right angle, an acute angle or an obtuse angle. When the included angle formed by the filaments 3 and the connecting members 4 connected thereto is a right angle, the filament assembly formed by the filaments 3 and the three connecting members 4 is in a rectangular structure when in the unfolded state. When the included angle formed by the filaments 3 and the connecting members 4 connected thereto is an acute angle or an obtuse angle, the filament assembly formed by the filaments 3 and the three connecting members 4 is in a parallelogram structure when in the unfolded state. In an optimal embodiment of the present utility model, the included angle is a right angle.

[0038] The filaments 3 in each row can be arranged at equal intervals or non-equally spaced according to other rules. In an optimal embodiment of the present utility model, as Figure 1 shown, the filaments in each row are arranged in parallel and at equal intervals, which is beneficial to the uniform light emission of the lamp product. At the same time, when the filament assembly works, the generated heat is evenly distributed, thereby optimizing the thermal effect of the lamp product and improving the service life and efficiency of the lamp product.

[0039] In another embodiment of the present utility model, as Figure 2 and Figure 3As shown, in each row of filaments, three filaments form a group, and the structure of each group of filaments is the same. In each group of filaments, the distances between the two end filaments and the middle filament are different. Among them, the distance between one end filament and the middle filament is relatively close, and the distance between the other end filament and the middle filament is relatively far. Each group of filaments in the same row is arranged at equal intervals, and the interval between each group of filaments is equal to the distance between the middle filament and the farther filament within the group. A number of filaments in the filament assembly are arranged according to the above rules.

[0040] The three connecting members and the filament assembly composed of two rows of filaments with the above structure realize the double-layer light source structure of the lamp product, initially optimize the heat effect of the lamp, and to a certain extent alleviate the problem of local overheating caused by uneven heat distribution. Combining the above structure with the limitation of the number of filaments 3 further optimizes the heat effect of the lamp, effectively alleviates the problem of local overheating caused by uneven heat distribution, enables the overall power of the lamp to be made larger, the lumen to be made higher, and the cost performance to be better.

[0041] The filaments and the three connecting members are connected by the method of automatic spot welding, which not only greatly reduces the number of solder joints of manual spot welding, reduces the cost of manual spot welding, improves production efficiency, but also effectively reduces the quality problems caused by desoldering and over-welding during the manual spot welding process, and improves the quality stability and reliability of the product.

[0042] The first connecting member 401 and the second connecting member 402 are connected to the core post bracket 6 by the method of manual spot welding. The three connecting members 4 can be in a straight line shape, and the filament assembly composed of the three connecting members and a number of filaments is in a rectangular shape. The three connecting members 4 are formed into a circular ring shape through equipment tooling, that is, the filament assembly composed of the three connecting members and the double-row filaments is formed into a cylindrical shape, and then the first connecting member 401 and the second connecting member 402 are respectively connected to the core post bracket 6 to fix the filament assembly in the bulb 1. A buckle is provided at the connection of the head and tail of the third connecting member 403. After the filament assembly is formed into a cylindrical shape through equipment tooling, the head and tail ends of the first connecting member 401 and the second connecting member 402 are both connected by spot welding, and the head and tail ends of the third connecting member 403 are connected by a buckle to make its cylindrical structure more stable. The third connecting member 403 does not need to be connected to the core post bracket 6, making the assembly process simpler and improving the production efficiency to a certain extent.

[0043] The bottom end of the core post 5 is in a flared shape. The core post bracket 6 is made of a conductive material, such as iron-nickel plating, etc. And the core post bracket 6 is in a columnar shape, the bottom end is fixed at the center position of the top end of the core post 5, and a circular ring-shaped bracket ring 605 is fixedly provided at the top end of the core post bracket 6. The core post bracket 6 is bent near the bracket ring 605. The part between the bent part of the core post bracket 6 and the core post 5 is a vertical column, and the part between the bent part of the core post bracket and the bracket ring is also a vertical column, and the bent part is a horizontal column, or can also be an inclined column.

[0044] The core column support 6 is located at the central axis position of the bulb 1. The support ring 605 is provided with a disconnected notch. The support ring 605 fits against the inner wall at the top end of the bulb 1. The top end of the bulb is provided with an inwardly recessed cylindrical groove 101. The support ring 605 is sleeved on the outer circle of the groove 101 and the support ring 605 fits against the groove 101, that is, the inner diameter of the support ring 605 matches the outer diameter of the groove 101. By changing the size of the notch, the diameter of the support ring 605 can be adjusted. During the production process, there may be an error in the size relationship between the inner diameter of the support ring and the outer diameter of the bulb groove. If the support ring is not provided with a notch, it will cause the support ring to be unable to be sleeved on the groove or the gap between the support ring and the outer circle of the groove is too large. Therefore, by providing a notch on the support ring, the notch on the support ring will automatically adjust its size during the process of the support ring 605 being sleeved on the outer circle of the groove 101, so as to adjust the diameter of the support ring 605 to make the support ring 605 fit with the bulb groove 101, that is, the support ring 605 fits against the outer wall of the groove 101 to prevent the support ring 605 from moving.

[0045] At the lower end of the bending part of the core column support 6, there are a first support wire 601 and a second support wire 602. The middle parts of the first support wire 601 and the second support wire 602 wind around the core column support for one circle. The two ends of the first support wire 601 and the second support wire 602 are spot-welded to the first connecting member 401. The first support wire 601 and the second support wire 602 are vertically arranged and are in an arc shape that bends downward. The structure of the first support wire 601 and the second support wire 602 plays a role in radially fixing the first connecting member 401 connected thereto.

[0046] At the bottom end of the core column support 6, there are a third support wire 603 and a fourth support wire 604. One end of the third support wire 603 is fixedly connected to the core column 5, and the other end is spot-welded to the second connecting member 402. The fourth support wire 604 is in an arc shape, is connected to the third support wire 603 in the middle, and the two ends are spot-welded to the second connecting member 402. The structure of the third support wire 603 and the fourth support wire 604 plays a role in both axially fixing and radially fixing the second connecting member 402 connected thereto.

[0047] The four support wires cooperate to fix the filament assembly composed of the three connecting members and the double-row filament on the core column support 6. The core column support 6 is fixed in the bulb 1 through the fixed connection with the core column 5 and the cooperation between the support ring 605 and the groove 101 at the top end of the bulb, so that the filament assembly composed of the three connecting members and the double-row filament is fixed in the bulb 1 to prevent it from moving in the bulb 1. While having a simple structure and being convenient for assembly, the core column support ensures the stability of the filament assembly composed of the three connecting members and the double-row filament in the space of the bulb 1.

[0048] The core column 5 is internally embedded with a control circuit, such as Figure 4The figure shows a schematic diagram of the control circuit of a double-layer light source high-power HID lamp of the present utility model. The control circuit is powered by a Boost switching power supply topology scheme and mainly consists of basic components such as a control chip U1, a power inductor T1, a MOSFET Q1, a diode, and a filter capacitor.

[0049] When the MOSFET Q1 is turned on, the input voltage is directly applied to the inductor T1, and the inductor current increases linearly. The inductor converts electrical energy into magnetic energy and stores it. At this time, the diode D3 is in the cut-off state to prevent the capacitor CD1 from discharging to the ground. At this time, the load is powered by the capacitor. The load is the LED chip on the filament.

[0050] When the MOSFET Q1 is turned off, due to the current-holding characteristic of the inductor, the inductor current does not immediately become 0 but decreases slowly. An induced electromotive force with a negative left and positive right is generated across the inductor. After this induced voltage is superimposed on the input voltage, it charges the capacitor through the diode and provides energy to the load, thereby achieving step-up. By adjusting the time ratio of the conduction and cut-off of the transistor Q1 by the control chip U1, the magnitude of the output voltage can be controlled to achieve constant current power supply to the load.

[0051] The present utility model realizes the double-layer light source structure of the lamp product through the filament assembly composed of the three connecting members and the double-row filament. There are more filaments in a limited space. Combining with the circuit structure of the filament, the total light output of the lamp product is increased. And the structure of the double-layer filament has a larger heat dissipation area, optimizing the thermal effect of the lamp, thereby improving the lifespan and efficiency of the lamp product. With the design of the control circuit, the power of the whole lamp can be made larger, the lumen can be made higher, and the cost performance is better.

[0052] At the same time, the double-layer filament structure can also disperse the load, thereby reducing the stress on each layer of the filament, reducing the risk of filament breakage caused by vibration or thermal expansion, and improving the mechanical stability of the filament structure.

[0053] In addition, the core column support structure of the present utility model is simple. While ensuring the support effect, it reduces the number of solder joints between the filament assembly and the core column support, strengthening the quality stability of the lamp product.

[0054] The above is only a preferred embodiment of the present utility model and does not impose any limitation on the present utility model. Any simple modification, change, and equivalent structural transformation made to the above embodiments according to the technical essence of the present utility model still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A double-layer light source high-power HID lamp, comprising a bulb, a stem fixed to the bottom end of the bulb, and a plurality of filaments located in the bulb, characterized in that: A stem support is fixedly provided on the stem, and the plurality of filaments are arranged in two upper and lower rows, row a and row b. The filaments in row a are connected to a first connecting member, and the filaments in row b are connected to a second connecting member. The filaments in row a are connected to the filaments in row b via a third connecting member, and the first connecting member and the second connecting member are fixed on the stem support.

2. A double-layer light source high-power HID lamp according to claim 1, characterized in that: The third connecting member is located between the first connecting member and the second connecting member, and the three connecting members are arranged in parallel and connected to the plurality of filaments.

3. A double-layer light source high-power HID lamp according to claim 2, characterized in that: The positive electrodes of the a-row filaments are connected to the first connecting member, and the negative electrodes are connected to the third connecting member; The positive electrodes of the filaments in row b are connected to the third connecting member, and the negative electrodes are connected to the second connecting member; The two rows of filaments have the same number, and the filaments in each row are arranged in parallel and at equal intervals, with the number not exceeding 20.

4. A double-layer light source high-power HID lamp according to claim 3, characterized in that: The three connecting members are in a circular ring shape. The three connecting members and the two rows of filaments form a filament assembly, and the filament assembly is in a cylindrical shape.

5. A double-layer light source high-power HID lamp according to claim 4, characterized in that: Buckles are provided at the head and tail connection points of the third connecting member.

6. A double-layer light source high-power HID lamp according to claim 2, 3 or 4, characterized in that: The three connecting members are evenly provided with a plurality of through holes, and the filaments are connected to the three connecting members at the through holes by automatic spot welding.

7. The double-layer light source high-power HID lamp according to claim 1, characterized in that: The stem column bracket is columnar and is located at the central axis of the bulb shell. A circular ring is fixedly provided at the top of the stem column bracket. The bracket ring is provided with a disconnected notch. The bracket ring fits with the inner wall of the top of the bulb shell. The top of the bulb shell is provided with an inwardly concave cylindrical groove, and the bracket ring is sleeved on the outer ring of the groove.

8. The double-layer light source high-power HID lamp according to claim 7, characterized in that: The core column bracket is bent near the bracket ring, and a first bracket wire and a second bracket wire are provided at the lower end of the bend. The first bracket wire and the second bracket wire are vertically arranged in a downward curved arc shape. The middle part is wrapped around the core column bracket, and both ends are spot-welded to the first connecting member.

9. A double-layer light source high-power HID lamp according to claim 8, characterized in that: A third bracket wire and a fourth bracket wire are provided at the bottom end of the core column bracket, one end of the third bracket wire is fixedly connected to the core column, and the other end is spot-welded to the second connecting member, and the fourth bracket wire is arc-shaped, connected to the third bracket wire in the middle, and spot-welded to the second connecting member at both ends.

10. The double-layer light source high-power HID lamp according to claim 1, characterized in that: The core column is embedded with a control circuit, including a control chip and a transistor. The control chip is used to set the time ratio of the transistor being turned on and off, thereby controlling the voltage at both ends of the filament.

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