Device support, light-emitting device and light-emitting device

Abstract

The utility model discloses a device support, a light-emitting device and a light-emitting device, the device support comprises a support base body and an annular box dam, one side of the support base body is provided with a setting surface, the setting surface is provided with a first groove, and the annular box dam is arranged on the setting surface along an opening of the first groove. The space in the annular box dam is communicated with the space in the first groove to form a cup-shaped groove, the annular box dam has the thickness d1 in the radial direction of the cup-shaped groove, and the thickness d1 is larger than or equal to 0.25 mm and smaller than or equal to 0.5 mm. The annular box dam is arranged along the opening of the first groove, and a shield can be formed on the periphery of the opening of the first groove through the annular box dam, so that mucilage glue on the periphery of the annular box dam can be prevented from directly overflowing into the annular box dam and the opening of the first groove; therefore, the possibility that the mucilage glue overflows into the annular box dam and the first groove (namely, the cup-shaped groove) can be reduced, and the controllability of the actual light emitting effect of the light emitting device using the device support provided by the utility model is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to electronic component technology field especially relates to a device support, light emitting device and light emitting device. BACKGROUND

[0002] In order to adjust the light distribution curve of light emitting device, the light emitting device in prior art usually includes device support, light emitting chip and lens, the device support is usually provided with recess, the light emitting chip is arranged at the groove bottom of recess and is located in recess, and the lens is usually bonded to the device support by adhesive and covers the opening of recess, so that the light emitted by the light emitting chip can be received through the lens, and the emission angle of light is adjusted.

[0003] In the production process, the adhesive is usually squeezed to overflow into the recess or even contact the surface of light emitting chip, which affects the light emission of light emitting chip, and further leads to poor controllability of actual light emission effect of light emitting device. SUMMARY

[0004] The first purpose of the utility model is to provide a device support, which can reduce the possibility of adhesive overflowing into the recess.

[0005] The second purpose of the utility model is to provide a light emitting device, which can reduce the possibility of adhesive overflowing into the recess and affecting the light emission of light emitting chip by using the aforementioned device support, and further improve the controllability of actual light emission effect of light emitting device.

[0006] The third purpose of the utility model is to provide a light emitting device, which can make the light emitting effect of light emitting device controllable by using the aforementioned light emitting device.

[0007] To achieve this purpose, the utility model adopts the following technical solutions:

[0008] In the first aspect, a device support is provided, comprising:

[0009] A support base body has a setting surface on one side, and the setting surface is provided with a first recess; and

[0010] A ring-shaped dam is arranged on the setting surface along the opening of the first recess, and the dam space in the ring-shaped dam is communicated with the space in the first recess to form a cup-shaped groove, and the ring-shaped dam has a thickness d1 in the radial direction of the cup-shaped groove, 0.25mm≤d1≤0.5mm.

[0011] As a preferred technical solution of the device support, a diameter r1 of a cup mouth of the cup-shaped groove satisfies: 1.2mm≤r1≤1.8mm; and / or,

[0012] A protruding height h of the annular dam protruding from a groove bottom of the first groove satisfies: 0.65mm≤h≤0.8mm.

[0013] As a preferred technical solution of the device support, an inner wall surface of the annular dam is connected with an end surface of the annular dam away from the support base body through a transition arc surface; and / or,

[0014] An outer peripheral surface of the annular dam is connected with the end surface of the annular dam away from the support base body through a transition arc surface.

[0015] As a preferred technical solution of the device support, a radius of curvature r2 of the transition arc surface satisfies: 0.2mm≤r2≤0.6mm.

[0016] As a preferred technical solution of the device support, the annular dam has an outer diameter r3, and an outer peripheral surface of the annular dam is inclined such that the outer diameter r3 of a portion of the annular dam farther away from the support base body is smaller; and / or,

[0017] The cup-shaped groove has a diameter r4, and a groove wall surface of the cup-shaped groove is inclined such that the diameter r4 of a portion of the cup-shaped groove closer to the cup mouth of the cup-shaped groove is larger.

[0018] As a preferred technical solution of the device support, an inner wall surface of the annular dam forms an angle θ1 with an extension direction of a central axis of the first groove, a side wall surface of the first groove forms an angle θ2 with the extension direction of the central axis of the first groove, and θ1=θ2.

[0019] As a preferred technical solution of the device support, the setting surface is further provided with a plurality of overflow grooves, and the plurality of overflow grooves are arranged at intervals and located at an outer periphery of the annular dam.

[0020] As a preferred technical solution of the device support, at least part of the overflow grooves penetrates through an outer peripheral surface of the support base body.

[0021] As a preferred technical solution of the device support, the overflow grooves have a width d2, and 0.1mm≤d2≤0.3mm.

[0022] As a preferred technical solution of the device support, a length of the overflow grooves extends in a radial direction of the first groove, and the plurality of overflow grooves are arranged at intervals around the first groove.

[0023] As a preferred technical scheme of the device support, the length directions of two adjacent overflow grooves form an angle θ3, 20°≤θ3≤45°.

[0024] As a preferred technical scheme of the device support, the device support further comprises a limiting boss, the limiting boss is arranged on the setting surface, and the limiting boss is spaced from the outer periphery of the annular dam.

[0025] As a preferred technical scheme of the device support, the height of the annular dam protruding from the setting surface is higher than the height of the limiting boss protruding from the setting surface; or,

[0026] The height of the annular dam protruding from the setting surface is flush with or lower than the height of the limiting boss protruding from the setting surface.

[0027] As a preferred technical scheme of the device support, the boss has a limiting surface facing the annular dam, and the limiting surface is an arc surface recessed in a direction away from the annular dam.

[0028] As a preferred technical scheme of the device support, the setting surface is rectangular, and the device support comprises four limiting bosses, and the four limiting bosses are spaced from each other and arranged at four corners of the setting surface.

[0029] In a second aspect, a light emitting device is provided, comprising a light emitting chip, a lens and the device support as described in the first aspect, the light emitting chip is arranged on the bottom of the first groove and located in the cup-shaped groove, the lens is provided with a second groove, the lens is adhered to the setting surface by adhesive, and the annular dam is matched and connected in the second groove.

[0030] As a preferred technical scheme of the light emitting device, the material of the lens is silica gel.

[0031] As a preferred technical scheme of the light emitting device, in the energized state of the light emitting chip, a virtual cross section passing through the central axis of the first groove is used to cut the light emitting device, any virtual cross section is within a light emitting angle range of at least 130°, the relative light intensity of the light emitting device is greater than or equal to 50%, and the light intensity distribution curve of the light emitting device on the virtual cross section has two peak values.

[0032] In a third aspect, a light emitting device is provided, comprising a substrate and at least one light emitting device as described in the second aspect, and the light emitting device is arranged on the substrate.

[0033] The device support has the following beneficial effects:

[0034] By setting the annular damper along the opening of the first groove, the annular damper can be used to form a shield on the outer periphery of the opening of the first groove, so as to prevent the adhesive on the outer periphery of the annular damper from directly overflowing to the inside of the annular damper and the opening of the first groove, thereby reducing the possibility of the adhesive overflowing to the inside of the annular damper and the first groove (i.e. the cup-shaped groove), and improving the controllability of the actual light-emitting effect of the light-emitting device using the device support provided by the utility model.

[0035] In addition, since the annular damper protrudes from the setting surface, and the lens of the light-emitting device needs to be bonded to the setting surface, the annular damper can also be matched and clamped to the lens, so as to limit the lens by the annular damper, thereby improving the assembly precision of the lens and the device support, improving the controllability of the adjustment effect of the light emitted from the cup-shaped groove by the lens, and further improving the controllability of the actual light-emitting effect of the light-emitting device using the device support provided by the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0036] The utility model will be further described in detail below according to the drawings and examples.

[0037] Figure 1 The structure of the device support described in the example is shown in the top view.

[0038] Figure 2 For Figure 1 The sectional view along A-A direction.

[0039] Figure 3 For Figure 2 The enlarged schematic view at M.

[0040] Figure 4 The structure of the light-emitting device described in the example is shown in the side view.

[0041] Figure 5 The structure of the light-emitting device described in the example is shown in the sectional view.

[0042] Figure 6 The light intensity distribution curve of the light-emitting device described in the example on the virtual cross section.

[0043] Figure 7 The structure of the light-emitting device described in the example is shown in the structure schematic view.

[0044] In the drawings:

[0045] 100, light-emitting device;

[0046] 1, device support; 10, support base; 10a, setting surface; 101, first groove; 101a, central axis; 102, glue overflow groove; 103, limiting boss; 103a, limiting surface; 11, ring dam; 11a, dam space; 110, transition arc surface; 12, cup-shaped groove; 120, cup mouth; 13, conductive structure;

[0047] 2, light emitting chip;

[0048] 3, lens; 30, second groove;

[0049] 200, substrate. DETAILED DESCRIPTION

[0050] In order to make the technical problems solved by the utility model, the technical scheme adopted and the technical effects reached more clear, the technical scheme of the embodiments of the utility model will be further described in detail below with reference to the drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0051] In the description of the utility model, unless another explicit provision and limitation, the terms "connected", "connected", "fixed" should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrated, can be mechanically connected, can be electrically connected, can be directly connected, can be indirectly connected through intermediate medium, can be the communication inside two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0052] In the utility model, unless another explicit provision and limitation, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0053] As Figure 1 With Figure 2As shown, the utility model provides a device support 1, including support base body 10 and ring dam 11, one side of support base body 10 has setting surface 10a, setting surface 10a is equipped with first recess 101, ring dam 11 is along the opening of first recess 101 and is located in setting surface 10a, the dam space 11a in ring dam 11 is communicated with the space in first recess 101 and forms cup-shaped groove 12.

[0054] By setting ring dam 11 along the opening of first recess 101, the outer periphery of the opening of first recess 101 can be formed by ring dam 11 to form a shelter, so that the adhesive on the outer periphery of ring dam 11 can be directly overflowed to the inside of ring dam 11 and the opening of first recess 101, and further the possibility of adhesive overflow to the dam space 11a of ring dam 11 and first recess 101 (i.e. in the cup-shaped groove 12) can be reduced, so as to improve the controllability of the actual light effect of the light emitting device 100 using the device support 1 provided by the utility model.

[0055] In addition, since ring dam 11 protrudes from setting surface 10a, and lens 3 of light emitting device 100 needs to be bonded to setting surface 10a, ring dam 11 can also be clamped to lens 3, so that lens 3 is limited by ring dam 11, thereby improving the assembly accuracy of lens 3 and device support 1, improving the controllability of the adjustment effect of light emitted in the cup-shaped groove 12 by lens 3, and further improving the controllability of the actual light effect of the light emitting device 100 using the device support 1 provided by the utility model.

[0056] Among them, device support 1 can also include conductive structure 13, conductive structure 13 is arranged on support base body 10, and a part of conductive structure 13 is located at the bottom of cup-shaped groove 12, so as to be electrically connected with light emitting chip 2 (see Figure 5 ) in cup-shaped groove 12, and another part of conductive structure 13 is located on the side of support base body 10 away from ring dam 11, so as to be electrically connected with external control circuit, so that light emitting chip 2 can be electrically connected with external control circuit through conductive structure 13.

[0057] Please refer to Figure 3As shown, in the radial direction of the cup-shaped groove 12, the annular dam 11 has a thickness d1, the greater the thickness d1, the better the structural strength of the annular dam 11, but the greater the annular dam 11 occupies on the setting surface 10a, in the case of limited size of the setting surface 10a, it is not conducive to make the lens 3 and the device support 1 have enough effective bonding area, so the connection stability of the lens 3 and the device support 1 is worse, therefore, the thickness d1 cannot be too large, based on this, optionally, the thickness d1 of the annular dam 11 can satisfy: 0.25mm≤d1≤0.5mm, for example, the thickness d1 can be 0.25mm, 0.27mm, 0.3mm, 0.32mm, 0.35mm, 0.37mm, 0.4mm, 0.42mm, 0.45mm, 0.47mm or 0.5mm, etc.

[0058] In order to enable the cup-shaped groove 12 to accommodate the light-emitting chip 2 of the light-emitting device 100, and enable the light-emitting chip 2 to have a large light-emitting angle from the cup mouth 120 of the cup-shaped groove 12, usually, optionally, the diameter r1 of the cup mouth 120 of the cup-shaped groove 12 can satisfy: 1.2mm≤r1≤1.8mm, for example, the diameter r1 of the cup mouth 120 can be 1.2mm, 1.25mm, 1.3mm, 1.35mm, 1.4mm, 1.45mm, 1.5mm, 1.55mm, 1.6mm, 1.65mm, 1.7mm, 1.75mm or 1.8mm, etc.

[0059] The annular dam 11 has a protruding height h protruding from the groove bottom of the first groove 101, the greater the protruding height h, the better the blocking effect of the annular dam 11 on the glue, and the more it can reduce the possibility of glue overflowing into the cup-shaped groove 12, but the greater the shielding effect of the annular dam 11 on the cup-shaped groove 12, in the process of using the manufacturing equipment to set the light-emitting chip 2 in the cup-shaped groove 12, and performing wire bonding, the annular dam is more likely to interfere with the operating head of the manufacturing equipment, therefore, the protruding height h cannot be too large, based on this, optionally, the protruding height h of the annular dam 11 protruding from the groove bottom of the first groove 101 can satisfy: 0.65mm≤h≤0.8mm, for example, the protruding height h can be 0.65mm, 0.66mm, 0.67mm, 0.68mm, 0.69mm, 0.7mm, 0.71mm, 0.72mm, 0.73mm, 0.74mm, 0.75mm, 0.76mm, 0.77mm, 0.78mm, 0.79mm or 0.8mm, etc.

[0060] Optionally, the inner wall surface of the annular dam 11 is connected with the end surface of the annular dam 11 away from the support base 10 through a transition arc surface 110, so that on the one hand, the transition of the inner wall surface of the annular dam 11 and the end surface of the annular dam 11 is smooth, which is beneficial to avoid stress concentration at the connection between the inner wall surface of the annular dam 11 and the end surface of the annular dam 11 when the annular dam 11 is injection molded, and can reduce the demolding difficulty of the device support 1, and on the other hand, the operation head of the manufacturing equipment can be further avoided during the process of using the manufacturing equipment to set the light emitting chip 2 in the cup-shaped groove 12 and perform wire bonding.

[0061] Optionally, the outer peripheral surface of the annular dam 11 is connected with the end surface of the annular dam 11 away from the support base 10 through a transition arc surface 110, so that on the one hand, the transition of the outer peripheral surface of the annular dam 11 and the end surface of the annular dam 11 is smooth, which is beneficial to avoid stress concentration at the connection between the outer peripheral surface of the annular dam 11 and the end surface of the annular dam 11 when the annular dam 11 is injection molded, and can reduce the demolding difficulty of the device support 1, and on the other hand, the transition arc surface 110 can play a guiding role during the process of clamping the annular dam 11 to the lens 3, so that when the annular dam 11 is not completely aligned with the lens 3, the transition arc surface 110 can abut against the lens 3 to guide the annular dam 11 to be clamped in alignment with the lens 3.

[0062] The transition arc surface 110 has a curvature radius r2, the greater the curvature radius r2, the smoother the transition of the transition arc surface 110, but the greater the space required for setting the transition arc surface 110, so the curvature radius r2 of the transition arc surface 110 cannot be too large, and based on this, the curvature radius r2 of the transition arc surface 110 can satisfy: 0.2mm≤r2≤0.6mm, for example, the curvature radius r2 can be 0.2mm, 0.25mm, 0.3mm, 0.35mm, 0.4mm, 0.45mm, 0.5mm, 0.55mm or 0.6mm, etc.

[0063] Optionally, the annular dam 11 has an outer diameter r3, and the outer peripheral surface of the annular dam 11 is inclined so that the outer diameter r3 of the part of the annular dam 11 farther away from the support base 10 is smaller, so that the outer peripheral surface of the annular dam 11 can play a guiding role during the process of clamping the annular dam 11 to the lens 3, so that when the annular dam 11 is not completely aligned with the lens 3, the outer peripheral surface of the annular dam 11 can abut against the lens 3 to guide the annular dam 11 to be clamped in alignment with the lens 3.

[0064] Optionally, the cup-shaped groove 12 has a diameter r4, and the wall surface of the cup-shaped groove 12 is inclined such that the diameter r4 of the portion of the cup-shaped groove 12 closer to the cup mouth 120 of the cup-shaped groove 12 is larger, so that the shielding effect of the annular dam 11 on the cup-shaped groove 12 can be reduced, and the operation head of the manufacturing equipment can be further avoided during the process of using the manufacturing equipment to set the light emitting chip 2 in the cup-shaped groove 12, wire, etc.

[0065] It can be understood that when the diameter r4 at the cup mouth 120 of the cup-shaped groove 12 is equal to the diameter r1 of the cup mouth 120 described above.

[0066] In other embodiments, the wall surface of the cup-shaped groove 12 can also be parallel to the extension direction S of the central axis 101a of the groove, so that the light rays emitted from the cup-shaped groove 12 to the lens 3 can be more concentrated, so as to facilitate the lens 3 to better perform light distribution.

[0067] Optionally, the inner wall surface of the annular dam 11 forms an angle θ1 with the extension direction S of the central axis 101a of the first groove 101, and the side wall surface of the first groove 101 forms an angle θ2 with the extension direction S of the central axis 101a of the first groove 101, θ1 = θ2, in other words, the inner wall surface of the annular dam 11 and the side wall surface of the first groove 101 form a surface, so that the structure of the device support 1 is simpler and easier to manufacture. Wherein, θ1 and θ2 can be both 0°, or θ1 and θ2 can be both greater than 0°.

[0068] Optionally, the setting surface 10a is also provided with a plurality of glue overflow grooves 102, and the plurality of glue overflow grooves 102 are arranged at intervals and located at the outer periphery of the annular dam 11, so that on the one hand, the glue overflow grooves 102 can accommodate the adhesive, so as to reduce the total amount of adhesive overflowing to the annular dam 11, and further reduce the possibility of adhesive overflowing into the cup-shaped groove 12, and on the other hand, the effective connection area of the adhesive and the device support 1 can be improved, so as to improve the connection stability of the lens 3 to the device support 1 by the adhesive.

[0069] Optionally, at least part of the glue overflow grooves 102 penetrate the outer peripheral surface of the support base body 10, so that the adhesive can further overflow to the outer peripheral side of the support base body 10 through the glue overflow grooves 102, so as to further reduce the possibility of adhesive overflowing into the cup-shaped groove 12.

[0070] The glue overflow groove 102 has a width d2. The smaller the width d2 is, the less glue the glue overflow groove 102 can hold. The larger the width d2 is, the more space the single glue overflow groove 102 occupies, the fewer the number of glue overflow grooves 102 that can be arranged on the limited setting surface 10a, and the smaller the total improvement of the effective connection area of the device support 1 and the glue by the plurality of glue overflow grooves 102. Therefore, the width d2 cannot be too small or too large. Based on this, the width d2 of the glue overflow groove 102 can satisfy 0.1 mm≤d2≤0.3 mm. For example, the width d2 can be 0.1 mm, 0.12 mm, 0.14 mm, 0.15 mm, 0.16 mm, 0.18 mm, 0.2 mm, 0.22 mm, 0.24 mm, 0.25 mm, 0.26 mm, 0.28 mm, or 0.3 mm.

[0071] Optionally, the length of the glue overflow groove 102 extends along the radial direction of the first groove 101, and a plurality of glue overflow grooves 102 are arranged at intervals around the first groove 101, thereby facilitating the overflow of the glue along the radial direction of the first groove 101 and filling the glue overflow groove 102.

[0072] The length directions of the two adjacent glue overflow grooves 102 form an included angle θ3. The larger the included angle θ3 is, the larger the spacing between the two adjacent glue overflow grooves 102 is, and the fewer the number of glue overflow grooves 102 that can be arranged on the limited setting surface 10a. The smaller the included angle θ3 is, the more the number of glue overflow grooves 102 arranged on the setting surface 10a, and the more complex the structure of the device support 1. In addition, the larger the amount of glue required when the lens 3 is bonded to the device support 1 by the glue. Therefore, the included angle θ3 cannot be too small or too large. Based on this, the included angle θ3 between the length directions of the two adjacent glue overflow grooves 102 can satisfy 20°≤θ3≤45°. For example, the included angle θ3 can be 20°, 22°, 25°, 27°, 30°, 32°, 35°, 37°, 40°, 42°, or 45°.

[0073] Optionally, the device support 1 further comprises a limiting boss 103, which is arranged on the setting surface 10a and is located at the outer periphery of the annular dam 11. Therefore, the relative position between the lens 3 and the device support 1 can be limited by the limiting boss 103 from the outer periphery of the lens 3, so as to further improve the assembly precision of the lens 3 and the device support 1, and thus improve the controllability of the adjustment effect of the lens 3 on the light emitted from the cup-shaped groove 12.

[0074] In an alternative embodiment, the annular dam 11 protrudes from the height of the setting surface 10a higher than the height of the limiting boss 103 protruding from the setting surface 10a, so that when the adhesive climbs along the outer circumferential surface of the annular dam 11 and the surface of the limiting boss 103 to a height exceeding the limiting boss 103, the adhesive is more likely to continue to overflow to the top end of the limiting boss 103 under the principle of the communicating vessel, which is conducive to further reducing the possibility of the adhesive overflowing into the cup-shaped groove 12.

[0075] In another alternative embodiment, the annular dam 11 protrudes from the height of the setting surface 10a flush with or lower than the height of the limiting boss 103 protruding from the setting surface 10a, which can make the height of the limiting boss 103 higher to improve the limiting effect of the limiting boss 103 on the lens 3 from the periphery of the lens 3.

[0076] Generally, the outer periphery profile of the lens 3 is circular, so optionally, the boss has a limiting surface 103a facing the annular dam 11, and the limiting surface 103a is an arc surface recessed away from the annular dam 11, so that the shape of the limiting surface 103a can better adapt to the shape of the outer periphery surface of the lens 3 to make the limiting effect of the limiting surface 103a on the lens 3 better.

[0077] Optionally, the setting surface 10a is rectangular, and the device support 1 includes four limiting bosses 103, which are spaced apart from each other and respectively arranged at the four corners of the setting surface 10a, so that on the one hand, the four limiting bosses 103 can collectively limit the lens 3, and the limiting effect is better, and on the other hand, since the part of the setting surface 10a that needs to be connected with the lens 3 is generally circular, such arrangement can reduce the occupation of the limiting boss 103 on the part of the setting surface 10a that needs to be connected with the lens 3.

[0078] As shown in Figure 4 With Figure 5 The utility model also provides a light emitting device 100, including light emitting chip 2, lens 3 and device support 1 as preceding technical scheme, light emitting chip 2 is located in the groove bottom of first recess 101 and is located in cup-shaped groove 12, lens 3 is equipped with second recess 30, lens 3 is bonded to setting surface 10a through adhesive, and annular dam 11 cooperates and is connected in second recess 30, through using preceding device support 1, the possibility that adhesive overflows into recess and influences the light emitting condition of light emitting chip 2 can be reduced, and then the controllability of actual light emitting effect of light emitting device 100 can be improved.

[0079] In addition, by matching the annular dam 11 to the second groove 30 of the lens 3, the lens 3 can be limited by the annular dam 11, so as to improve the assembly precision of the lens 3 and the device support 1, to improve the controllability of the adjustment effect of the lens 3 on the light emitted from the cup-shaped groove 12, and to further improve the controllability of the actual light emitting effect of the light emitting device 100.

[0080] The light emitting chip 2 can be electrically connected to the partial conductive structure 13 at the bottom of the cup-shaped groove 12, so that the light emitting chip 2 can be electrically connected to an external control circuit through the conductive structure 13.

[0081] Optionally, the material of the lens 3 is silica gel, so that on the one hand, the lens 3 has high light transmittance and refractive index, can better adjust the light, and the light loss is small during the light passing through the lens 3, on the other hand, the lens 3 can have a certain elasticity, so that the lens 3 is less likely to be damaged due to bumps, and the lens 3 can be elastically connected to the annular dam 11, so that the lens 3 and the annular dam 11 have better connection stability.

[0082] Please refer to Figure 6 Optionally, in the light emitting chip 2 is in the state of being powered on, the light emitting device 100 is cut by a virtual cross section of the central axis 101a of the first groove 101, and the relative light intensity of the light emitting device 100 is greater than or equal to 50% in at least 130° of the light emitting angle range, and the light intensity distribution curve of the light emitting device 100 on the virtual cross section has two peaks, so that the light emitting angle of the light emitting device 100 is large, and the light emitting intensity in the large angle direction is also large, as shown in Figure 6 . Figure 6 An exemplary light intensity distribution curve of the light emitting device 100 on the virtual cross section is shown in

[0083] In addition, it should be noted that in Figure 6 the light intensity data of the light emitting device 100 is normalized, that is, the relative value of the light intensity of each angle and the light intensity peak is used to describe the distribution change of the light intensity. Therefore, it can be understood that when the light intensity is the peak value of the light intensity distribution curve, the relative light intensity is 1, and when the light intensity is 50% of the maximum peak value of the light intensity distribution curve, the relative light intensity is 0.5.

[0084] In order to realize the aforementioned light emitting effect of the light emitting device 100, optionally, the lens 3 can be formed as a structure that the middle part of the outer surface is concave and the peripheral part of the middle part is convex to form a curved surface, so that the light emitted from the middle part of the lens 3 can be reduced and the light can be diverged by the peripheral part of the middle part, the relative light intensity of the light emitting device 100 is greater than or equal to 50% of the light emitting angle, and the light intensity distribution curve on the virtual cross section has two peak values.

[0085] As shown in Figure 7 The utility model also provides a light emitting device, including substrate 200 and at least one light emitting device 100 as described in the preceding technical solutions, light emitting device 100 is located on substrate 200, by using the aforementioned light emitting device 100, the light emitting effect of light emitting device can be better controllable. Especially when substrate 200 is provided with multiple light emitting devices 100 as described in the preceding technical solutions, the light emitting effect of different positions of light emitting device is better. Wherein, substrate 200 can be provided with control circuit, and the conductive structure 13 (please combine Figure 5 The conductive structure 13 of light emitting device 100 can be electrically connected to the control circuit on substrate 200.

[0086] In the description herein, it should be understood that the orientation or position relationship of the terms "upper", "lower", "left", "right" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of description and simplification of operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0087] In the description of the present specification, the description referring to the terms "an embodiment", "an example" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example.

[0088] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment only contains one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

[0089] The technical principles of the present application are described above in combination with specific embodiments. These descriptions are only for explaining the principles of the present application, and cannot be interpreted as limiting the protection scope of the present application in any way. Based on the explanations herein, other specific embodiments of the present application can be conceived by those skilled in the art without creative efforts, and these embodiments will all fall within the protection scope of the present application.

Claims

1. A device holder, characterized in that The device support includes: a support base body, one side of the support base body having a setting surface, the setting surface being provided with a first groove; and a ring-shaped dam, the ring-shaped dam being provided on the setting surface along an opening of the first groove, a dam space in the ring-shaped dam being in communication with a space in the first groove to form a cup-shaped groove, the ring-shaped dam having a thickness d1 in a radial direction of the cup-shaped groove, 0.25mm≤d1≤0.5mm.

2. The device holder of claim 1, wherein A cup opening diameter r1 of the cup-shaped groove satisfies: 1.2mm≤r1≤1.8mm; and / or A protruding height h of the ring-shaped dam protruding from a groove bottom of the first groove satisfies: 0.65mm≤h≤0.8mm.

3. The device holder of claim 1, wherein An inner wall surface of the ring-shaped dam is connected to an end surface of the ring-shaped dam away from the support base body through a transition arc surface; and / or An outer peripheral surface of the ring-shaped dam is connected to the end surface of the ring-shaped dam away from the support base body through a transition arc surface.

4. The device holder of claim 3, wherein A curvature radius r2 of the transition arc surface satisfies: 0.2mm≤r2≤0.6mm.

5. The device holder of claim 1, wherein The ring-shaped dam has an outer diameter r3, an outer peripheral surface of the ring-shaped dam is inclined, and the outer diameter r3 of a portion of the ring-shaped dam farther away from the support base body is smaller; and / or The cup-shaped groove has a diameter r4, a groove wall surface of the cup-shaped groove is inclined, and the diameter r4 of a portion of the cup-shaped groove closer to a cup opening of the cup-shaped groove is larger.

6. The device holder according to any one of claims 1-5, characterized in that An angle θ1 between the inner wall surface of the ring-shaped dam and an extension direction of a central axis of the first groove, and an angle θ2 between a side wall surface of the first groove and the extension direction of the central axis of the first groove satisfy: θ1=θ2.

7. The device holder of claim 1, wherein The setting surface is further provided with a plurality of glue overflow grooves, the plurality of glue overflow grooves being arranged at intervals and located at an outer periphery of the ring-shaped dam.

8. The device holder of claim 7, wherein, At least part of the glue overflow grooves penetrates an outer peripheral surface of the support base body.

9. The device holder of claim 7, wherein, The glue overflow grooves have a width d2, 0.1mm≤d2≤0.3mm.

10. The device holder of claim 7, wherein Lengths of the glue overflow grooves extend in a radial direction of the first groove, and the plurality of glue overflow grooves are arranged at intervals around the first groove.

11. The device holder of claim 10, wherein, Adjacent two glue overflow grooves have a length direction forming an angle θ3, 20°≤θ3≤45°.

12. The device holder according to any one of claims 1-5 or any one of claims 7-11, characterized by The device support further includes a limiting boss, the limiting boss being provided on the setting surface and being arranged at intervals at an outer periphery of the ring-shaped dam.

13. The device holder of claim 12, wherein, A height of the ring-shaped dam protruding from the setting surface is higher than a height of the limiting boss protruding from the setting surface; or A height of the ring-shaped dam protruding from the setting surface is flush with or lower than the height of the limiting boss protruding from the setting surface.

14. The device holder of claim 12, wherein, The boss has a limiting surface facing the ring-shaped dam, the limiting surface being an arc surface recessed in a direction away from the ring-shaped dam.

15. The device holder of claim 12, wherein, The setting surface is rectangular, and the device support includes four limiting bosses, the four limiting bosses being arranged at intervals and respectively at four corners of the setting surface.

16. A light emitting device comprising: The device support as claimed in any one of claims 1-15, comprising a light emitting chip, a lens and a device support, the light emitting chip is arranged on the bottom of the first recess and located in the cup-shaped groove, the lens is provided with a second recess, the lens is adhered to the setting surface by adhesive, and the annular dam is matched and connected with the second recess.

17. The light emitting device of claim 16, wherein, The material of the lens is silica gel.

18. The light emitting device of claim 16, wherein, In the state that the light emitting chip is powered on, the light emitting device is cut by a virtual cross section passing through the central axis of the first recess, any virtual cross section is within a light emitting angle range of at least 130°, the relative light intensity of the light emitting device is greater than or equal to 50%, and the light intensity distribution curve of the light emitting device on the virtual cross section has two peak values.

19. A light emitting device comprising: The device support as claimed in any one of claims 1-15, comprising a light emitting chip, a lens and a device support, the light emitting chip is arranged on the bottom of the first recess and located in the cup-shaped groove, the lens is provided with a second recess, the lens is adhered to the setting surface by adhesive, and the annular dam is matched and connected with the second recess.

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