LED light source suitable for vehicle lamp

Abstract

The utility model discloses a kind of LED light source suitable for car light, including light source support, first pin, second pin and ten LED chips are provided on the light source support, multiple the LED chips are arranged into two rows, each row is equipped with five the LED chips, all the LED chips form two rows five columns rectangular array, multiple the LED chips form three light source branches. In the technical scheme, ten LED chips form three light source branches and form two rows five columns rectangular array, the second light source branch and the third light source branch are equipped with three LED chips, the first light source branch is equipped with four LED chips, wherein two LED chips are connected in parallel to form an LED unit, the LED unit is connected in series with other two LED chips, ensure light distribution effect while effectively controlling cost.

Description

Technical Field

[0001] This utility model relates to the field of automotive lighting technology, and more specifically to an LED light source suitable for automotive lights. Background Technology

[0002] Currently, automotive lighting has largely replaced traditional light sources with LEDs. To improve driver safety at night, there are specific requirements for the light distribution of vehicle headlights. Existing standards require that the light distribution of the headlight beam be a rectangle with a longer horizontal direction and a shorter vertical direction. Furthermore, according to relevant standards, the power supply voltage for automotive headlights is 9V, while LED headlight light sources typically use 3V LED chips.

[0003] To match the power supply voltage of automotive headlights and meet the light distribution requirements of the headlight output beam, existing technologies often utilize multiple light source branches connected in parallel, with each branch consisting of three LED chips connected in series. Using two light source branches results in poor luminous efficiency and insufficient light distribution, while using four branches leads to high costs. Therefore, three light source branches are the optimal choice. However, a problem remains: if all the LED chips in the three light source branches are arranged in a three-row, three-column rectangular array, the light distribution is poor; if arranged in a two-row rectangular array, nine LED chips cannot be formed. Therefore, how to utilize three light source branches to form a two-row, multi-column rectangular array is the technical problem this application aims to solve. Utility Model Content

[0004] To solve the above-mentioned technical problems, the purpose of this utility model is to provide an LED light source suitable for vehicle lights.

[0005] The technical solution adopted by this utility model to solve the problem is: An LED light source suitable for vehicle lights includes a light source bracket, on which a first pin, a second pin, and ten LED chips are disposed. The multiple LED chips are arranged in two rows, with five LED chips in each row. All the LED chips form a rectangular array of two rows and five columns. The multiple LED chips form three light source branches, which are defined as the first light source branch, the second light source branch, and the third light source branch, respectively. The first light source branch is equipped with four LED chips, the second light source branch and the third light source branch are each equipped with three LED chips, the three LED chips of the second light source branch are connected in series, the three LED chips of the third light source branch are connected in series, two LED chips of the first light source branch are connected in parallel to form an LED unit, and the LED unit is connected in series with the other two LED chips. The first pin is electrically connected to each of the three light source branches, and the second pin is electrically connected to each of the three light source branches.

[0006] As a further improvement to the above technical solution, each of the LED chips is a flip-chip LED chip.

[0007] As a further improvement to the above technical solution, in the first light source branch, the two LED chips connected in parallel are positioned near the center of the rectangular array.

[0008] As a further improvement to the above technical solution, in the first light source branch, the two LED chips connected in parallel are arranged in two adjacent positions in the rectangular array, either in the horizontal direction or in two adjacent positions in the vertical direction.

[0009] As a further improvement to the above technical solution, the rectangular array is covered with a phosphor medium layer, and the color temperature range of the light output by the phosphor medium layer after the LED chip emits light is 1600K to 15000K.

[0010] The beneficial effects of this utility model are as follows: In this technical solution, ten LED chips are used to form three light source branches and form a rectangular array of two rows and five columns. The second and third light source branches are each equipped with three LED chips, and the first light source branch is equipped with four LED chips. Two LED chips are connected in parallel to form an LED unit, and the LED unit is connected in series with the other two LED chips, which ensures the light distribution effect while effectively controlling the cost. Attached Figure Description

[0011] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0012] Figure 1 This is the circuit schematic diagram of this utility model; Figure 2 This is a diagram showing the distribution of LED chips in this utility model. Detailed Implementation

[0013] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0014] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0015] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0016] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0017] Reference Figure 1 and Figure 2 This application discloses an LED light source suitable for vehicle lights. In its first embodiment, it includes a light source bracket, on which a first pin, a second pin, and ten LED chips are disposed. The multiple LED chips are arranged in two rows, with five LED chips in each row. All the LED chips form a rectangular array of two rows and five columns. The multiple LED chips form three light source branches, which are respectively defined as the first light source branch, the second light source branch, and the third light source branch. The first light source branch is equipped with four LED chips, the second light source branch and the third light source branch are each equipped with three LED chips, the three LED chips of the second light source branch are connected in series, the three LED chips of the third light source branch are connected in series, two of the LED chips of the first light source branch are connected in parallel to form an LED unit, and the LED unit is connected in series with the other two LED chips. The first pin is electrically connected to each of the three light source branches, and the second pin is electrically connected to each of the three light source branches.

[0018] In this embodiment, the first pin is used for current input and the second pin is used for current output.

[0019] Specifically, in this embodiment, ten LED chips are used to form three light source branches and form a rectangular array of two rows and five columns. The second and third light source branches are each equipped with three LED chips, and the first light source branch is equipped with four LED chips. Two LED chips are connected in parallel to form an LED unit, and the LED unit is connected in series with the other two LED chips, so as to ensure the light distribution effect while effectively controlling the cost.

[0020] As a further preferred embodiment, in this embodiment, each of the LED chips is a flip-chip LED chip.

[0021] As a further preferred embodiment, in this example, the two LED chips connected in parallel in the first light source branch are positioned near the center of the rectangular array. Additionally, the two LED chips connected in parallel in the first light source branch are positioned as two adjacent positions in the rectangular array in the lateral direction, or two adjacent positions in the longitudinal direction. (Refer to...) Figure 2 In this embodiment, the two LED chips connected in parallel are positioned at two adjacent locations among positions 2, 3, 4, 7, 8, and 9. For example, the two LED chips connected in parallel are positioned at positions 2 and 3, and at positions 3 and 8. This design effectively reduces wiring complexity.

[0022] As a further preferred embodiment, in this embodiment, the rectangular array is covered with a phosphor medium layer, and the color temperature range of the light output by the phosphor medium layer after the LED chip emits light is 1600K to 15000K.

[0023] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the concept of this utility model and the contents of the specification and drawings of this utility model, or direct or indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. An LED light source suitable for vehicle lights, characterized in that: The light source includes a light source bracket, on which a first pin, a second pin, and ten LED chips are provided. The multiple LED chips are arranged in two rows, with five LED chips in each row. All the LED chips form a rectangular array of two rows and five columns. The multiple LED chips form three light source branches, which are defined as the first light source branch, the second light source branch, and the third light source branch, respectively. The first light source branch is equipped with four LED chips, the second light source branch and the third light source branch are each equipped with three LED chips, the three LED chips of the second light source branch are connected in series, the three LED chips of the third light source branch are connected in series, two of the LED chips of the first light source branch are connected in parallel to form an LED unit, and the LED unit is connected in series with the other two LED chips. The first pin is electrically connected to each of the three light source branches, and the second pin is electrically connected to each of the three light source branches.

2. The LED light source suitable for vehicle lights according to claim 1, characterized in that: All of the LED chips mentioned are flip-chip LED chips.

3. The LED light source suitable for vehicle lights according to claim 1, characterized in that: In the first light source branch, the two LED chips connected in parallel are positioned near the center of the rectangular array.

4. The LED light source suitable for vehicle lights according to claim 3, characterized in that: In the first light source branch, the two LED chips connected in parallel are arranged in two adjacent positions in the rectangular array, either in the horizontal direction or in two adjacent positions in the vertical direction.

5. The LED light source suitable for vehicle lights according to claim 1, characterized in that: The rectangular array is covered with a phosphor dielectric layer, and the color temperature range of the light output by the LED chip after emitting light is 1600K to 15000K.

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